Impedance-tumed connector
Abstract
A termination structure for connecting a cable connector to a circuit board. The structure has a ground terminal (150) and two signal terminals (140, 141) arranged in a triangle pattern through the connector to reduce the size of the connector On the impedance. The width of the ground terminal (150) increases relative to the signal terminals (140, 141) along its extension. This increase occurs along the transition or contact portion of the ground terminal.

Term
Term ended
Expired 14 July 2020, 6.2 years ago.
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31 claims: 4 independent, 27 dependent
- 1第 1. 一种用于在配接连接器和电路板之间形成连接的连接器 (110),所述配接连接器端接于一具有至少一对差动信号线和一与所 述信号线相关的接地线的电缆,所述连接器包括: 由电绝塚材料制成的壳体(112),设于所述壳体内的导电端子三 合体(119),所述三合体包括一个接地端子(150)和两个与所述接 地端子(150)相关的差动信号端子(140、141);所述接地端子(150)和信号端子(140、141)中的每一个包含有 用于接触所述配接连接器的对应的相对端子的接触部分,用于将所述 端子端接于所述电路板上的相关的电路的安装部分,和用于将所述接 触部分和妥装部分互连在一起的本体部分,所述接地端子和信号端子 接融部分进入所述壳体且至少部分地由所述壳体支撐,其特征在于, 所述接地端子(150 )在所述两个信号端子(140、141 )之间延伸, 所述接地端子(150)的本体部分(154)平行于所述信号端子(140、 141)的本体部分(144),且其安装部分(152 )平行于所述信号端子 (140、141 )的安装部分(142),且所述接地端子接僦部分(153) 和所述信号端子接融部分(143)在所述壳体(112)内彼此间隔开, 并在所述壳体内以三角形取向。
- 2如权利要求1所述的连接器,其特征在于,当互连所述接地和 信号端子(150和140、141 )而引出三条假想线时,所述接地和信号端 子(150和140、141 )形成一假想三角形的顶点.
- 3如权利要求1所述的连接器,其特征在于,所述接地端子(150) 和信号端子(140、141)的安装部分(152、142)包括通孔安装地脚 (195),且其中所述接地端子(150)和所述佶号端子(140、141) 的安装部分(152、142)设在一共同的平面内,而所述接地端子(150) 和所述信号端子(140、141)的所述本体部分(154、144 )设在另一 共同的平面内.
- 4如权利要求1所述的连接器,其特征在于,所述接地端子(150) 和信号端子(140、141)的接融部分(153、143)在各自的第一和第 二平面内延伸,且所述接地端子(150)和信号端子(140、141)的本 体部分(154、144)设在与所述第一和第二平面相交的一共同的平面 内。 00813021.3 第
- 5如权利要求4所述的连接器,其特征在于,所述接地端子(150) 和信号端子(140、141 )的妥装部分(152、142)包括在与所述共同 的平面相交的第四平面内延伸的表面安装地脚.
- 6如权利要求4所述的连接器,其特征在于,所述第一和第二平 面互相平行,且所述第一平面在所述第二平面上方延伸·
- 7如权利要求4所述的连接器,其特征在于,所述接地端子(150) 和信号端子(140、141)的安装部分(152、142)设于第四平面内, 且所述接地端子和信号端子的本体部分(154、144)所在的所述共同 的平面与所述第一、第二和第四平面相交.
- 8如权利要求1所述的连接器,其特征在于,所述接地端子(150) 和信号端子(140、141 )的接怨部分(153、143)从其各自的本体部 分(154、144)悬臂式伸出。
- 9如权利要求1所述的连接器,其特征在于,所述接地端子的本 体部分(154,)具有第一预选宽度,且所述接地端子的接融部分(153») 具有第二预选宽度,该第二预选宽度大于所述第一预选宽度。
- 10如权利要求9所述的连接器,其特征在于,所述接地端子接触 部分(153,)的第二预选宽度大于其中一个所述信号端子的接触部分 (143,)的对应宽度.
- 11如权利要求10所述的连接器,其特征在于,所述接地端子的 接緻部分(153,)的第二预选宽度大于所述两个信号端子的接触部分 (143,)的对应宽度之和·
- 12如权利要求1所述的连接器,其特征在于,所述接地端子的接 融部分(153,)具有足够大的宽度,从而使所述接地端子的接触部分 (153,)重叠所述信号端子的接触部分(143,)的一部分·
- 13如权利要求1所述的连接器,其特征在于,所述接地端子的接 触部分(153,)具有大于所述信号端子的接融部分(143,)的表面积。
- 14如权利要求1所述的连接器,其特征在于,所述接地端子 (150,)的宽度沿其长度变化·
- 15如权利要求1所述的连接器,其特征在于,所述壳体(112) 包括一本体部分和第一和第二叶片部分(114a和114b),所述叶片部 分从所述壳体(112)的所述本体部分悬臂式伸出,且彼此相互间隔开, 所述接地端子的接触部分(153)设在所述壳体的第一叶片部分(U4a) 00813021.3 第 上,所述信号端子的接融部分(143)设于所述壳体的第二叶片部分 (U4b)上.
- 16如权利要求1或15所述的连接器,其特征在于,所述壳体包括 与一附加的差动信号线对相关的三个附加端子(TPB(G ), ΤΡΒ-, TPB+ ), 这三个附加端子(TPB (G) , ΤΡΒ-, TPB+ )包括一附加接地端子(TPB (G))和两个附加信号端子(ΤΡΒ-, TPB+ ),所述附加接地端子的接 融部分与所述附加信号端子的接触部分在所述壳体内间隔开,以使所 述附加接地和信号端子的接触部分布置在一附加的假想三角形的顶点 处.
- 17如权利要求16所述的连接器,其特征在于,所述接地端子和 附加的接地端子分别设于所述假想三角形和所述附加的假想三角形的 顶点处.
- 18如权利要求15所述的连接器组件,其特征在于,所述壳体的 第二叶片部分(114b)包括一设置在所述信号端子的接触部分(143) 之间的通道(163),从而在所述信号端子的接倉部分(143)之间提 供一空气间隙·
- 19一种I/O连接器组件,所述连接器组件包含: 第一和第二连接器(110和170),第一和第二连接器(110和170) 的每一个都具有各自的第一和第二连接器壳体(112和171),所述第 一和第二连接器壳体(112和171)的每一个都具有设于其上的相对的 配接面和端接面,所述第一连接器(110)在其所述端接面处端接于第 一电子部件,而所述第二连接器(170)在其所述端接面处端接于第二 电子部件,所述第一和第二连接器(110和170)可以在其所述配接面 处接合,从而在所述第一和第二电子部件之间实现所述连接; 所述第一和第二连接器(110和170)包括相应的第一对导电信号 端子(140、141和190),当所述第一和第二连接器(110和170)接合 在一起时它们互相接合,且所述第一和第二连接器(110和170)包括 与所述第一对信号端子(140、141和190)的相应端子相关联的相应的 接地端子(150和180),当所述第一和第二连接器(110和170)接合 在一起时所述相应的接地端子(150和180)互相接合,其特征在于, 所述第一连接器(110)的所述接地和信号端子(150和140、141) 的每一个都包括扁平的触片部分(153、143)、安装部分(152、142) 00813021.3 第 和将所述触片部分和所述安装部分互连在一起的本体部分(154、 144),所述接地端子的触片部分和信号端子的触片部分(153和143) 彼此间隔开,且在第一和第二不同平面内延伸,所述接地端子和信号 端子的本体部分(154、144)在与所述第一和第二平面相交的第三平 面内延伸,以使所述接地端子和信号端子的触片部分(153、143)和 本体部分(154、144)彼此成一角度延伸.
- 20如权利要求19所述的连接器组件,其特征在于,所述第一连 接器壳体(112)包括从所述第一连接器壳体(112)延伸的不同的第 一和第二叶片部分(114a和114b),所述第一叶片部分(114a)支撑 所述信号端子僦片部分(143),而所述第二叶片部分(114b)支撑所 述接地端子触片部分(153).
- 21如权利要求20所述的连接器组件,其特征在于,所述第一和 第二叶片部分(114a和114b)的每一个都包括在其内接纳所述接地和 信号端子(150和 140、141)的槽(118、120).
- 22如权利要求20所述的连接器组件,其特征在于,第一叶片部 分(114a )包括至少一个通道(163 ),该通道形成在所述第一叶片部 分(114a)上并定位于所述信号端子的接触部分之间,以在所述信号 端子的接融部分之间提供一空气间隙·
- 23如权利要求20所述的连接器组件,其特征在于,所述第一和 第二叶片部分(114a和114b)彼此间馬开·
- 24如权利要求20所述的连接器组件,其特征在于,所述第二连 接器壳体(170)包括一插头部分,所述第二连接器信号端子(190) 沿所述摘头部分的第一侧布置,而所述第二连接器接地端子(180)沿 所述插头部分的第二侧布置,当所述第一和第二连接器(110和170) 接合在一起时,所述第二连接器信号端子和接地端子(190和180)分 别与所述第一连接器的第一和第二叶片部分(H4a和114b)相对·
- 25如权利要求19所述的连接器组件,其特征在于,所述第一连 接器的接地端子(150)通过空气间隙与所述第一连接器的信号端子 (140)间届开。
- 26如权利要求19所述的连接器组件,其特征在于,所述第一和 第二平面是平行的平面,从而使所述第一连接器接地端子的触片部分 (153)与所述第一连接器信号端子的触片部分(143)间隔开,且所 00813021.3 第 述第一连接器接地端子的本体部分(154 )设于所述第一连接器信号端 子的本体部分(144)之间。
- 27如权利要求19所述的连接器组件,其特征在于,所述第一连 接器接地和信号端子的融片部分(153和143)相对于所述第一连接器 接地和信号端子的本体部分(154和144)是悬傅式的·
- 28一种用于在配接连接器和电路板之间形成连接的连接器 (110),所述配接连接器包括至少一对差动信号接融部分和一与所述 信号接触部分相关的接地接融部分,而所述电路板包括至少一对差动 信号迹线和一与所述信号迹线相关的接地迹线,所述连接器包括一个 由电绝缘材料制成的壳体(112), 一个设于所述壳体(112)内的导 电端子三合体(119),所述三合体包括一个接地端子(150)和两个 与所述接地端子(150)相关的差动信号端子(140和141),每一所述 连接器的接地端子(150)和信号端子(140和141)包含有用于接触所 述配接连接器的所述信号接触部分和所述接地接触部分的触片部分 (153和143),用于将所述连接器信号端子和接地端子安装于所述电 路板上的所述信号迹线和接地迹线的安装部分(152和142),所述本 体部分将所述接触部分和安装部分连接在一起,其特征在于, 所述接地端子和所述信号端子(150和140、141)的所述端子触片 部分(153和143)彼此间隔开,并在第一和第二单独的平面内延伸, 所述接地端子的本体部分和所述信号端子的本体部分(154和144)在 一第三平面内延伸,该第三平面与所述第一和第二平面相交,从而, 所述接地端子和所述信号端子的所述融片部分(153和143)和所述接 地端子和所述信号端子的本体部分(154和144)彼此成角度的延伸·
- 29如权利要求28所述的连接器,其特征在于,所述配接连接器 壳体包括一插头部分,该插头部分接纳于所述连接器的一插座(110) 内·
- 30如权利要求28所述的连接器,其特征在于,所述连接器壳体 包括一插座部分,且所述信号端子的触片部分支搏在所述插座部分的 第一叶片部分(114a)上,而所述接地端子的融片部分支承在所述插 座部分的第二叶片部分(114b)上·
- 31一种具有导电端子三合体的连接器,所述连接器包括由电绝 缘材料制成的壳体,和设于所述壳体内的所迷导电端子三合体,所述 00813021.3 第 导电端子三合体包括两个信号端子和一个与所述信号端子相关的接地 端子,所述接地端子和信号端子中的每一个分别包含有接魁部分和安 装部分,以及在连接所述接触部分和所述安装部分之间的本体部分, 其特征在于,所述接地端子位于所述两个信号端子之间,且其接触部 分、安装部分和本体部分平行于所述信号端子的接触部分、安装部分 和本体部分延伸,所述接地端子的接触部分和所述信号端子的接融部 分在所述壳体内彼此间隔开,且所述接地端子和所述信号端子分别在 所述壳体内设置在一假想三角形的顶点处· 00813021.3
Independent claims31
59 paragraphs, as filed
The first impedance tuning connector technology background The present invention relates to the terminal portion of the connector, especially for connecting signal cables, especially high-speed signal cables and printed circuit board connectors.
Many electronic devices rely on transmission lines to transmit signals between related devices or between computer peripherals and circuit boards. These transmission lines include signal cables capable of high-speed data transmission. These signal cables can use known one or more pairs of twisted wires twisted together along the length of the cable, and each pair of such twisted wires is shielded by an associated ground. These twisted wire pairs usually receive complementary signal voltages, that is, one wire in the twisted wire pair is a +1.0 volt signal, and the other wire in the twisted wire pair is -1. 0 volt signal. Therefore, these wires can be called "differential" wire pairs, this term means that they transmit different signals. When signal cables are connected to electronic devices along a path, they may pass through or approach other electronic devices that emit their own electric fields. These devices may cause electromagnetic interference to transmission lines such as the above-mentioned signal cables. However, such twisting The wire-pair structure minimizes any induced electric field, thereby eliminating electromagnetic interference. In order to maintain the electrical performance of the circuit from the transmission line or cable to the related electronic installation, it is hoped that the entire circuit from the circuit to the circuit is fully chelated. · A transmission line has a substantially constant impedance, or avoid large sudden changes in the impedance of the transmission line. The difficulty of controlling the impedance of the connector at the mating surface of the connector is well known, because the impedance of the ordinary connector usually changes on the connector and across the interface of the two mating connector parts. Although in electronic transmission lines such as cables , It is easier to maintain the required impedance by maintaining the specific geometry or physical configuration of the signal conductor and the ground shield. However, the impedance change is usually encountered in the area where the cable and the connector are mated. Therefore, it is hoped that the entire connector It maintains the required impedance at its joint with the cable.
Therefore, the present invention is directed to a termination junction for forming an improved connection between the cable and the connector. The structure has high performance and maintains the electrical characteristics of the cable in the termination area.
Summary of the invention
00813021.3 First, a general purpose of the present invention is to provide an improved connector for high-speed data transmission connections, in which the impedance mutation on the connector is minimized, so as to better match the impedance of the transmission line.
Another object of the present invention is to provide an improved connector for realizing a high-performance connection between a circuit board and an opposite connector terminated to a transmission line, wherein the transmission line includes at least a pair of differential signal lines and related The opposite connector includes at least two signal terminals and a ground terminal. The connector has a pair of signal terminals and a ground terminal associated with it. The signal terminal and the ground terminal of the connector are When the connector is connected to the opposite adapter, it is arranged in a way that reduces the occurrence of sudden changes in impedance.
Another object of the present invention is to provide such a connector in which the impedance of the connector can be "tuned" by changing the size of the ground terminal and its position relative to its two related signal lines, so as to obtain the Pre-select impedance.
It is still another object of the present invention to provide a connector for connecting cables such as those of IEEE 1394 type to a circuit board of an electronic device, wherein the connector has a plurality of separate differential signal lines and is connected to the inside of the cable. An equal number of related ground terminals are included, and the ground terminals of the connector are configured in size and position relative to the signal terminals of the connector to minimize the impedance drop through the connector. Another object of the present invention is to provide a A connector for forming a connection between a circuit board and a connector related to a signal cable, wherein the connector includes a pair of differential signal terminals and a ground terminal related to the pair of signal terminals, the ground terminal having To control the size of the impedance through the connector, the ground terminal of the connector is spaced apart from the pair of signal terminals in the contact area, thereby forming the required electrical relationship between the three terminals. Another object of the present invention is to provide a A circuit board connector for mating cable connectors. The circuit board connector has a housing, a ground terminal is located in the connector housing and is spaced apart from two related signal terminals, the ground terminal has a body part, and the body part The corresponding body part larger than the two signal terminals.
Another object of the present invention is to provide a circuit board connector for cable connection. The connector has a ground terminal and two signal terminals, which are arranged in a triangular orientation in the mating contact portion of the circuit board connector. To achieve the above object, a main aspect of the present invention explained through an embodiment includes a pick-to-connector for a circuit board. The connector has a housing for connecting each pair of twisted wires in a signal cable. , The shell supports three conductive terminals, which form
00813021.3 The unique mode of the third group, in which two terminals transmit differential signals, and the remaining terminals are ground terminals, which are used as ground planes or ground loops for differential signal line pairs. The second connector for the cable is mated with the first connector, and the second connector also has three groups of conductive terminals, which are terminated in the signal line and ground line of the cable.
The arrangement of these three terminals in the first connector allows the impedance of the first connector to be more effectively controlled, from the junction with the cable connector terminal to the connection point connected to the circuit board. In this way, each The triad includes a pair of signal terminals having contact portions, the contact portions are aligned in a side-by-side manner, and are spaced apart from each other by a predetermined distance.
The ground terminal is spaced apart from the two signal terminals so that there are two rows of terminals in the connector. The ground terminal has a contact portion spaced apart from the same contact portion of the signal terminal, and the rest of the ground terminal can extend between the signal terminals. At this point, the ground terminal can extend on a common plane like two signal terminals.
The width of the ground terminal and the distance between the ground terminal and the signal terminal can be selected such that the three terminals can have the required electrical characteristics, such as capacitance, etc., which affects the impedance of the connector. The width of the ground terminal usually increases in the contact part of the terminal along the mating area, but it may also increase in the transition area. The transition area is located between the connection area and the termination area of the terminal. The ground structure is adjusted through this impedance. Without changing the mating position or spacing of the differential signal terminals, it provides a greater possibility of reducing impedance mutations that occur in the connector. Therefore, this aspect of the present invention is characterized by providing a tunable" terminal layout for each differential signal line pair, as well as the related ground line arrangement in the cable or other circuit.
In another main aspect of the present invention, two or more such tunable triples can be provided in the connector body, but separated by the extension part of the insulating material, such as the connector body, air gap, Or both. In order to maximize the high-speed performance of this connector, the signal terminals and ground terminals should preferably have similar flat contacts cantilevered from the relevant body part, so that the melting point of the ground terminal can be Relative to its related signal terminals, it is selectively processed to a certain size, which facilitates the tuning of the terminals, so as to achieve the best required impedance in the connector system. When two sets of such triplet terminals are used in the connector of the present invention, the power terminal of the connector can be located between the two triplet terminals on a horizontal plane equal to the height of the triplet of the grounding terminal, thereby Will not interfere with signal terminals.
00813021.3 In another main aspect of the present invention, the connector has ground terminals and signal terminals arranged in a triangular orientation, so as to maintain the predetermined spatial positional relationship between the three terminals in the mating area of the circuit board connector .
Based on the above objective, the present invention provides a connector for forming a connection between a mating connector and a circuit board. The mating connector is terminated in a connector having at least a pair of differential signal lines and a connector with the A cable for a grounding wire related to a signal line. The connector includes a housing made of an electrically insulating material, and a three-piece of conductive terminals arranged in the housing. The three-piece includes one ground terminal and two The differential signal terminal related to the grounding parrot; each of the grounding terminal and the signal terminal includes a contact portion for contacting a corresponding opposing terminal of the mating connector, for terminating the terminal to The mounting part of the related circuit on the circuit board, and the body part for interconnecting the contact part and the mounting part, the ground terminal and the signal terminal welding part enters the housing and at least partially The ground is supported by the housing, characterized in that the ground terminal extends between the two signal terminals, the body part of the ground terminal is parallel to the body part of the signal terminal, and the mounting part is parallel to the body part of the signal terminal. The mounting portion of the signal terminal, and the ground terminal contact portion and the signal terminal contact portion are spaced apart from each other in the housing and are oriented in a triangle in the housing. In other respects, when the interconnection is When three imaginary lines are drawn from the ground and signal terminals, the ground and signal terminals form the apex of an imaginary triangle. The ground terminal and signal The mounting part of the terminal includes a through-hole properly installed foot, and the mounting part of the ground terminal and the signal terminal are arranged in a common plane, and the body part of the ground terminal and the signal terminal are arranged In another common plane, the fusion portion of the ground terminal and the signal terminal extends in the respective first and second planes, and the body portions of the ground terminal and the signal terminal are arranged in the same position as the first and second planes. In a common plane where the second plane intersects. The fitted portions of the ground terminal and the signal terminal include surface mount feet extending in a fourth plane that intersects the common plane. The first and second planes are parallel to each other, and the first plane is at The second plane extends above. The mounting parts of the ground terminal and the signal terminal are arranged in the four planes of the pick, and the common plane where the body parts of the ground terminal and the signal terminal are located intersects the first, second, and fourth planes. The contact part of the ground terminal and the signal terminal cantilevered from their respective body parts. The body part of the ground terminal has a first preselected width, and the contact part of the ground terminal has a second preselected width, and the second The preselected width is greater than the first preselected width. The ground terminal
00813021.3 The second preselected width of the first sub-contact portion is greater than the corresponding width of the welding portion of one of the signal terminals. The second preselected width of the contact portion of the ground terminal is greater than the corresponding width of the contact portion of the two signal terminals The sum. The contact portion of the ground terminal has a sufficiently large width so that the contact portion of the ground terminal overlaps a part of the contact portion of the signal terminal. The contact portion of the ground terminal has a larger surface area than the contact portion of the signal terminal. The width of the ground terminal varies along its length. The housing includes a body part and first and second blade parts, the blade parts cantilevered out from the body part of the housing and are spaced apart from each other, and the contact part of the ground terminal is provided On the first blade part of the housing, the contact part of the signal terminal is provided on the second blade part of the housing. The housing includes three pairs of additional differential signal wires. Additional terminals. The three additional terminals include an additional ground terminal and two additional signal terminals. The welding portion of the additional ground terminal and the contact portion of the additional signal terminal are spaced apart in the housing, so that the The contact part of the additional ground and the signal terminal is arranged at the vertex of an additional imaginary triangle. The ground terminal and the additional ground terminal are respectively provided at the vertices of the imaginary triangle and the additional imaginary triangle. The second blade portion of the housing includes a channel provided between the contact portions of the signal terminals, thereby providing an air gap between the contact portions of the signal terminals. The present invention also provides an I/O connector Assembly, the connector assembly includes first and second connectors, each of the first and second connectors has its own first and second connector housings, the first and second connector housings Each of the bodies has opposing mating surfaces and terminal surfaces provided thereon, the first connector is terminated to the first electronic component at the terminal surface, and the second connector The terminal is connected to the second electronic component at the terminal surface thereof, and the first and second connectors can be joined at the mating surface thereof, thereby realizing between the first and second electronic components The connection; the first and second connectors include a corresponding first pair of conductive signal terminals, when the first and second connectors are joined together, they are joined to each other, and the first and second connections The device includes corresponding ground terminals associated with the corresponding terminals of the first pair of signal terminals, and the corresponding ground terminals are joined to each other when the first and second connectors are joined together, wherein the Each of the ground and signal terminals of the first connector includes a flat contact piece portion, a mounting portion, and a body portion interconnecting the contact piece portion and the mounting portion, and the contact of the ground terminal The piece part and the fusion piece part of the signal terminal are separated from each other, and are different in the first and second Extending in the plane, the body parts of the ground terminal and the signal terminal are in contact with the first ~ and the first
00813021.3 Extend in the third plane where the second plane intersects, so that the contact piece part and the body part of the ground terminal and the signal terminal extend at an angle to each other. The first connector housing includes different first and second blade portions extending from the first connector housing, the first blade portion supports the signal terminal contact portion, and the second The blade part supports the ground terminal contact piece part. Each of the first and second blade portions includes a slot in which the ground and signal terminals are received. The first blade portion includes at least one channel formed on the first blade portion and positioned at Between the contact portions of the signal terminals, an air gap is provided between the contact portions of the signal terminals. The first and second blade portions are separated from each other. The second connector housing includes a plug portion, the second connector signal terminals are arranged along the first side of the plug portion, and the second connector ground terminal is along the second side of the plug portion It is arranged that when the first and second connectors are joined together, the signal terminal and the ground terminal of the second connector are respectively opposed to the first and second blade portions of the first connector. The ground terminal of the first connector is separated from the signal terminal of the first connector by an air gap. The first and second planes are parallel planes, so that the ground terminal of the first connector touches The piece part is connected with the first The fusion pieces of the connector signal terminals are spaced apart, and the body part of the first connector ground terminal is arranged between the body parts of the first connector signal terminal. The first connector ground and the signal terminal The contact piece part is suspended relative to the ground of the first connector and the body part of the signal terminal. The present invention also provides a connector for forming a connection between a mating connector and a circuit board. The mating connector includes at least a pair of differential signal contact portions and a ground contact portion related to the signal connection fusion portion, and the circuit board includes at least a pair of differential signal traces and a pair of differential signal traces. Related to ground traces, the connector includes a housing made of electrically insulating material, a three-in-one conductive terminal set in the housing, the three-in-one includes a ground terminal and two ground terminals Terminal-related differential signal terminals, the ground terminal and signal terminal of each connector includes a contact piece portion for contacting the signal contact portion and the ground contact portion of the mating connector, for connecting The signal terminal and the ground terminal of the connector are mounted on the mounting part of the signal trace and the ground trace on the circuit board, and the body part connects the welding part and the mounting part together, and is characterized in that , The terminal contact portions of the ground terminal and the signal terminal are spaced apart from each other and extend in first and second separate planes, the ground terminal The body portion of the sub and the body portion of the signal terminal extend in a third plane, and the first
00813021.3 The third plane intersects the first and second planes, so that the fusion piece portion of the ground terminal and the signal terminal and the body portion of the ground terminal and the signal terminal extend at an angle to each other · In other aspects, the mating connector body includes a plug part that is received in a socket of the connector · the connector body includes a receptacle part, and the signal terminal The contact piece portion is supported on the first blade portion of the socket portion, and the contact piece portion of the ground terminal is supported on the second blade portion of the socket portion.
The present invention also provides a connector with a three-in-one conductive terminal. The connector includes a housing made of an electrically insulating material, and the three-in-one conductive terminal provided in the housing, and the three-in-one conductive terminal The combined body includes two signal terminals and a ground terminal related to the signal terminal. Each of the ground terminal and the signal terminal includes a contact portion and a mounting portion, and is connected to the contact portion and the mounting portion. The body part between the two signal terminals is characterized in that the ground terminal is located between the two signal terminals, and the contact part, the mounting part and the body part thereof extend parallel to the contact part, the mounting part and the body part of the signal terminal , The contact portion of the ground terminal and the fusion portion of the signal terminal are spaced apart from each other in the housing, and the ground terminal and the signal terminal are respectively arranged at the vertices of an imaginary triangle in the housing Brief Description of the Drawings The following will be described in detail with reference to the drawings, in which the same reference numerals denote the same parts, and in which: FIG. 1A is a front view of the cable connector assembly of the present invention on a circuit board of an electronic device. The "internal" environment in which the present invention is used is shown; FIG. 1B is a front view of the cable connector assembly of the present invention on the circuit board of the electronic device and extending to the outside of the device, which shows the "outside" using the present invention Environment; Figure 2 is a cable connector in the form of a socket connector constructed according to the principles of the present invention An exploded view of the connector, which is suitable for mounting on a printed circuit board and is open to the inside or outside of the electronic device; Fig. 3 is a perspective view of the socket connector and the inner shield of the connector shown in Fig. 2; Fig. 4 Is a perspective view of a cable having a plug connector terminated to and engaged with the receptacle connector shown in FIG. 2; FIG. 4A is an enlarged end view of the plug connector shown in FIG. 4, in which a part of the connector cover is cut away , In order to better show the terminal structure and its housing;
00813021.3 Figure 5A is a detailed enlarged view of a set of three terminals arranged in a "triple" and used in the connector shown in Figure 2, showing the relative size and housing of its two signal terminals and a ground terminal. Fig. 5B is a detailed enlarged view of another type of terminal triplet that can be used in the connector shown in Fig. 2; Fig. 6 is an end view taken along line 6-6 in Fig. 3, but only showing Figure 3 shows the internal insulator of the socket connector; Figure 7 is a cross-sectional view taken along line 7-7 in Figure 3, showing the separation of the socket connector body and its two rows of terminals; Figure 8A is A perspective view of the ground terminal used in the socket connector of FIGS. 2-3 and 6-7; FIG. 8B is a perspective view of the signal terminal used in the socket connector of FIGS. 2-3 and 6-7; 9A is a schematic end view of the connector of FIGS. 2-3 and 6-7, showing the layout of various terminals facing each other, and showing that two status information terminals are used; FIG. 9B is FIGS. 12-14 and 17 A schematic end view of the connector, showing the layout and differences of the terminals, and showing the use of a status information terminal; Figure 9C is a cross-sectional view of the two-line head and the socket connector, showing a preliminary relationship between each other Splicing; Figure 10A is a perspective view of the ground terminal used in the plug connector of the present invention shown in Figures 4 and 12-14; Figure 10B is the uncovered head of the present invention shown in Figures 4 and 12-14 The letter used in the connector A perspective view of the number terminal; Figure 11 shows a typical impedance mutation experienced on a high-speed cable connection and the reduction of the mutation experienced when the connector of the present invention is used; Figure 12 is based on the principle of the present invention when there are multiple The perspective view of the multi-socket connector in the triple terminal layout; Figure 13 is a schematic diagram of the connector interface area between the cable and the circuit board connector; Figure 14 is another type constructed according to the principles of the present invention The schematic view seen from the back end of the circuit board connector shows the layout of the terminals in the extension from the circuit board to the mating contact area;
00813021.3 Fig. 15 is a perspective view of the connector shown in Fig. 14, showing that the terminal is placed in the shielding member before the insulating insertion part is molded; Fig. 16 is a diagram showing the transition from area I to area IV of Fig. 13 The impedance curve diagram shows how the curve changes when the ground terminal of the system moves from the same horizontal position as the two related signal terminals; Figure 17A shows a "triple" of related ground terminals and signal terminals 17B is another schematic cross-sectional view showing the triangular layout of the three terminals according to the present invention and a substantially regular triangle; and FIG. 17C is a schematic cross-sectional view showing the triangular layout of the three terminals according to the present invention; Triangle terminal layout of unequal triangles, and shows another schematic cross-sectional view of three terminals in different planes.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved connector that is particularly useful in improving the performance of high-speed cables, especially in input-output ("I/O") applications and other types of applications. More precisely, the present invention Attempt to implement measures to achieve mechanical and electrical uniformity in the termination area of the connector, so as to benefit its performance when used alone and when combined with the opposite connector.
Many peripheral devices associated with electronic installations, such as video cameras or camcorders, transmit digital signals at different frequencies. Other devices associated with computers, such as its CPU part, transmit data at high speeds. Yuspeed cables are used To connect these devices to the CPU, and can also be used to connect two or more CPUs together in some applications. The specific cable can be fully configured to transmit high-speed signals and can include a differential signal line pair , Either a twisted pair or a single pair.
One factor in high-speed data transmission is signal attenuation. This includes the cross-wire and signal reflection that is affected by the impedance of the cable and connector. By shielding and using differential signal pairs in the cable, you can easily control the cross-wire and Signal reflection, but due to the various materials used in the connector and other factors, it is difficult to control these aspects in the connector. In high-speed applications, the physical size of the connector limits the structure of the connector and the terminal to be adjusted. The degree of specific electrical performance · Impedance mismatch in the transmission path may cause signal reflection, which usually leads to signal loss, cancellation, etc. Therefore, it is desirable to keep the impedance constant on the signal path in order to maintain the complete chelation of the transmitted signal. Termination The printed circuit that is connected to the cable and transmits the transmission signal to the device
00813021.3 The connector of the circuit device on the first board usually cannot be very well controlled when it comes to impedance, and it can vary greatly with the cable impedance. Impedance mismatch between these two components can cause transmission errors, limit bandwidth, etc.
Figure 11 shows a sudden change in impedance that occurs on a common plug-and-socket connector assembly for signal cables. The impedance on the signal cable is close to a constant, or a reference value, as shown at 51 on the right side of Figure 11. The deviation from the baseline is shown by the bold solid line at mark 50. The cable impedance basically matches the left side of Figure 11 And the impedance of the circuit board shown at 52 on the left side of the "PCB terminal" axis. The vertical axis "M" refers to the termination point between the recessed or receptacle connector and the printed circuit board, while the vertical axis "N" The purpose is the interface between two mating plug and receptacle connectors, and the vertical axis "P" refers to the point where the pick-off connector is terminated to the cable. Curve 50 in Figure 11 refers to the ordinary The typical impedance of the connector is "abrupt", and three peaks and valleys are shown, each peak or valley has a corresponding distance (or value) ratio to the baseline, and these distances are in ohms, based on and have 0 ohms. The value of the horizontal "distance" axis is measured on the vertical axis where the axis intersects. In these common connector assemblies, the high impedance represented by the out will usually increase to about 150 ohms, and the low impedance represented by the also will usually decrease to about 60 ohms. The electrical performance of this large abrupt color ring connector of about 90 ohms between the output and the output relative to the printed circuit board and the cable. The present invention relates to a connector and a connector termination structure, which are particularly suitable For I/O (input/output") applications, the connector has an improved structure, which can make the connector The impedance is set in such a way that it simulates the matching cable and reduces the above-mentioned sudden changes. In fact, the connector of the present invention can be "tuned" during its design process to improve the electrical performance of the connector.
Impedance Tunability Referring to Figure 1A, an "internal" environment in which the present invention is very suitable is shown. In this environment, the connector of the present invention is located inside the outer wall 108 of an electronic device such as the computer 101. Therefore, it is called "internal". The connector of the present invention can also be used in "external" applications, as shown in Figure 1B As shown, one of the connectors 110 is mounted on the circuit board 1Q2, but partially extends through the outer wall 108 of the device 1, so that the user can access it from the outside of the device 101. The connector assembly 100 includes a pair of first One and a second inter-engaged connector, described herein as the corresponding socket (or female) connector 110 and plug connector 104. One of the two connectors 110 is mounted on the printed circuit board 102 of the device 101 On the other hand, the other connector 104 usually terminates in a cable 105 leading to the peripheral device.
00813021.3 Figure 2 is an exploded view of the uncovered (or recessed) connector 110 constructed according to the principles of the present invention. It can be seen that the connector 110 includes an insulated connector housing made of insulating material 112. In the illustrated embodiment, the housing 112 has two blade portions 114a, 114b, which extend outwardly from the body portion 116 of the housing 112. The blade portions of these housings support a plurality of conductive terminals 119, such as As shown in the figure. In this regard, the lower blade portion 114a has a series of slots or cutouts 118 formed therein, adapted to receive selected terminals of the conductive terminals 119 therein. The upper blade portion 114b has a similar slot 120 (FIGS. 6 & 7) to receive the remaining terminals 119 of the connector 110.
In order to provide a comprehensive shielding of the connector housing 112 and its associated terminals 119, the connector may include a first housing or screen member 123, which is made of sheet metal and has a surrounding body portion 116 The upper and lower blade portions 114a. 114b of the body portion 124. The first shielding member 123 may also include a grounding portion 125 for fitting on the surface 103 of the printed circuit board 102 to form a connection with a grounding portion on the circuit board. The suspension leg portion 107 can also be formed by the screen piece shown in FIG. 1A, which is used for the through hole of the connector 110 to be properly installed, but it is preferably a surface mount application as shown in FIG. 1B. The first shielding piece 123 may be as shown in FIG. The illustration includes a retaining member 126 that is received in and engaged with a groove 127 formed on the connector body portion 116.
The structure of the socket connector 110 shown in Figure 2 enables it to be used in the "internal" application shown in Figure 1A, as well as in the "external" application (Figure 1B), where the connector 110 is properly installed on the circuit board 102, but the connector 110 partially extends through the outer wall 108 of the electronic device, and can be accessed from the outer wall. In order to prevent accidental impact that may occur when the plug-type connector of the cable is inserted into the socket of the socket-type connector 110, it can be set A second shield member 129 extending above the first shielding member 123 and separated by an insulating member 130 therebetween. The second shielding member 129 also has a fitting foot 131 integrally formed therewith and will be connected to the casing Grounding part to isolate it from the circuit grounding part. The second shielding member 129 just has a length L2 greater than the length L1 of the first housing, making it difficult for the user to touch the inner shielding member 123 when the cable connector is engaged with it.
As mentioned above, one of the objectives of the present invention is to provide a connector whose impedance is closer to the impedance of the system (such as a cable) than that of a multi-way connector. The obtained tunable "triad" or "triad" achieves the same as above. The triple is the layout of the three separate terminals shown at "A" in Figures 2, 5A, 5B & 6. In its simplest sense, and as shown in FIG. 5A, this triplet includes two signal terminals 140, 141 and a single ground terminal 150, which are arranged to be terminated with a differential signal line
00813021.3 The corresponding terminals of the first pair (preferably twisted pair) TPA + and TPA-of the head-type connector 104 are matched, as shown in Figure 9A & 9B, the differential signal pair transmits signals of the same strength, but they are complementary to each other , That is, +1.0 volts and -1.0 volts, and complementary to ground.
As shown in FIG. 8B, the two signal terminals 140, 141 may have a cantilever design, wherein each terminal 140, 141 has a surface-mounted foot part 142, a fusion piece part 143 and an interconnecting body part 144. With this design, you can The terminals 140, 141 are easily stamped and formed. The terminals 140, 141 are accommodated in the groove 118 of the lower blade portion 114b of the housing body portion 116, and may include an end at the free end of the contact piece portion 143 as shown in FIGS. 2 & 7 The protrusions 145 are accommodated in the opening 117 formed on the connector housing 116 at the end of the slot 118. In order to "tune" the electrical characteristics of the connector, closer to the impedance of the system, and each set of differential signal terminals 140 141 and 141 are associated with a separate ground terminal 150. Therefore, the term is called "triple."
Each such ground terminal, as shown in Figures 5A, 5B and 9A, 9B detail A", is accompanied by two differential signal terminals. The schematic diagrams of Figures 9A and 9B show the positions at "A" and "B" The concept of ternary terminals. In one sense, the signal terminals 140, 141 can be considered to be arranged in a triangular form with respect to the ground terminal 150. In another sense, they can also be considered to be from a certain orientation discussed here. The ground terminal "sides out", and a part of the signal terminal extends to a point outside the side edge of the ground terminal 150. In the illustrated embodiment, the ground terminal 150 is located on the upper blade portion 114b of the socket connector body 116 , And between the two signal terminals 140, 141. In the schematic diagrams shown in Figures 9A & 9B, two such triangular orientation triples are shown, in which a single terminal is distinguished by the suffix "A" or "B". Therefore. , TPA + and TPA-indicate the terminal of the differential signal line of the "A" pair of wires, and TPA (G) indicates the ground terminal of the "A" group of wires. Similarly, TPB + and TPB- indicate the "B" pair of the cable The terminal of the differential signal line of the wire, and TPB (G) represents the ground terminal in the "B" group of wires. As described in more detail below, the triangular relationship between the three related terminals can vary, and can include, etc. Side triangle relationship, isosceles triangle relationship, etc.
As shown in FIG. 8A, the related ground terminal 150 also has a cantilever design, with a surface-mounted foot portion 152, a middle body portion 154, and a contact portion 153. When a signal terminal is used, the contact portion 153 of the ground terminal 150 is located In a different plane from its central body portion 154. As shown in Figs. 2, 8A-8B and 9C, the contact piece portions 143, 153 of the signal terminal and the ground terminal are located on different planes that intersect their corresponding terminal body portions 144, 154 Inside. Although the preferred embodiment shows these two planes, generally vertical horizontal and vertical planes, it should be understood that such planes do not have to intersect vertically or be exactly in horizontal and vertical planes.
00813021.3 First, the advantages of the present invention are also achieved. However, it is desirable that the two planes intersect each other. The welding part of the signal terminal and the ground terminal basically extends through the entire connector housing, as shown in Figure 9C, entering from them The position of the housing is skewed to at least near the front end surface of the connector. It is best to maintain the triangular orientation of the three terminals in the connector housing.
Furthermore, the surface mount portions 142, 152 of the signal and ground terminals 140, 141, 150 may live in a plane generally parallel to their corresponding contact portions 143, 153. For the purpose of fitting, the signal terminals and ground terminals The mounting part can also use the through-hole component 195 (Figure 1A). The interaction between the surface area and position of the ground terminal and the signal terminal is explained below.
Through this structure, each pair of differential signal terminals of the cable or circuit has a separate ground terminal associated with it, extending through the connector, thereby being closer to the cable and the associated plug connector in terms of electrical performance. This structure allows the signal wire of the cable to "see" the grounding part, pass through the entire length of the cable in the same way, and pass through the interface of the plug and socket connector in the same way to reach the circuit board. This connector interface is schematically shown in Figure 13, and within the range involved in the impedance and electrical performance of the entire connection component or system, it can be considered to be divided into four different areas I-IV. District I refers to the cable 105 and its structure, and area II refers to the termination area between the cable connector 104 and the cable 105 when the cable is terminated to the connector. Area III refers to the mating interface between the cable connector and the circuit board connector 110, including the mating body parts of the connectors 104 and 110. Area IV refers to the circuit board connector 11 included. The area of the terminating part between the circuit board 103 and the circuit board 103 · The lines "Ρ", "N" and "M" in Figure 11 have been superimposed on Figure 13. The existence of the ground terminal and the signal terminal is very important between the three terminals Capacitive coupling is formed. This coupling is only one aspect of the final characteristic impedance of the color ring terminal and its connector. Within the scope of the triple terminal, the resistance value, terminal material and self-inductance also affect the connector In the embodiment shown in FIG. 5B, the width D2 of the ground terminal fusion piece portion 153, is sufficiently large that it extends above the signal terminals 140, 141, or at least partially overlaps the signal terminals A part of 140, 141, Preferably, in the example shown in FIG. 5B, a part of the ground terminal 150, always overlaps or overlaps a part of at least one of the signal terminals 140, 141,. In other examples, such as shown in FIG. 5A, the ground terminal 150 may be located between the imaginary lines S drawn from the side edges of the signal terminals 140 and 141 or adjacent to the ground terminal contact portion 153, with a larger width D2 having the same width as the signal Table of terminal contact part 143,
00813021.3 The surface area of the first surface area is larger. Therefore, the ground terminal contact portion 153 represents a larger and overlapping contact and cooperation area in the area above the signal terminal 140\141.
In order to maintain the small "footprint" of the jack connector 110 on the circuit board, in the illustrated embodiment, the present invention can reduce the width of the ground plane of the ground terminal body portion 154 and the surface mount foot portion 152. . For the most part, the width of the ground terminal in the secured portion 152' will be the same, and in some examples shown in FIGS. 14 & 15, the width of the ground terminal body portion can be increased. By reducing the width of the ground terminal 150 in the second plane of the ground terminal body portion 154, it can be fitted between the differential signal terminals and the distance between the signal terminals (TPA+ and TPA-) Also reduced to maintain similar capacitive coupling on the connector by maintaining a substantially constant preselected impedance between the ground terminal and the signal terminal. The impedance of the connector (and the coupling between the terminals) is affected by the adjacent signal terminals 140, 141, and the shape of the interval between the signal terminal and the ground terminal. Moreover, the materials used between the terminals, such as air, housing material, or a combination thereof, will bring a dielectric in the area between the signal terminal and the ground terminal. Constant or composite dielectric constant.
By reducing the width of the ground terminal body portion 154' in the embodiment of FIG. 5B, the overlap between the contact piece portions 153, 143, of the ground terminal and the signal terminal stops in the first plane (shown as horizontal), but in The second intersection (vertical) plane no longer overlaps. Moreover, in the second plane, the ground terminal body portion 154 can be aligned with the signal terminal 144 in an edge-to-edge layout. Although there are very few grounds in these planes The cross-sectional area of the terminal, but the ground terminal is now closer to the signal terminal, so the similar coupling between the terminals is maintained. In the area of the first plane, that is, the ground and signal terminal contacts in the mating interface of District III in Figure 18 In the area of the sheet portion, the size of the grounding terminal 150, relative to the size of the signal terminals 140, 141, increases, thereby selectively reducing the impedance as described above. Similarly, in the second plane, there are two The signal ground terminal body parts 144, 154, occupy, the space between the ground terminal 150, and the signal terminal 140\141, is reduced, so that the ground and signal terminals are closer, thereby reducing the impedance of the connector·triple The signal ground terminal contact portions 143, 143 are preferably kept in the same plane, as shown in FIG. 5AHB, and along the lower blade portion 114a of the connector housing 112. This allows the impedance of the connector to be tuned in terms of spacing and facilitates the mechanical joining of the two connectors. By providing a larger grounding terminal The grounding terminals of the sub-contact part, the mating contact between these terminals and the opposite grounding and signal terminals of the other (off-the-head) connector is improved, and the impedance will not be adversely affected.
00813021.3 The effect of this tunability is depicted in Figure 11, which shows a sudden reduction in the total impedance of the connector assembly. The impedance mutation expected to occur in the connector of the present invention is shown by the dashed line 60 in FIG. 11. The solid line of FIG. 11 represents a typical impedance jump that occurs in the connector system of FIG. 13. By comparing the piety line and the solid line, the peak and valley values of the sudden change are also H<sub>22 </sub>And Η* have been greatly reduced. It is believed that the present invention can significantly reduce all the sudden changes that occur in ordinary connector components. In an application, it is believed that the maximum sudden change is about 135 ohms (in Zhao place), and the lowest The sudden change is about 85 ohms (at 2). The target baseline impedance of the connector of the present invention is generally about 110 ohms, and the error is about +/- 25 ohms. Therefore, it is conceivable that the connector of the present invention will have about 50 ohms. Total mutations (in H<sub>u</sub>^H<sub>22</sub>The difference between ), which produced a result of up to 50% reduction from the usual mutation of about 90 ohms as described above.
The tunability and characteristic impedance can also be affected by the shape of the ground between the terminals as described above. At this point, and as clearly shown in Figure 6, the lower blade portion 114a of the connector housing 112 itself can be opened. There are cuts, such as at 160, to form an air gap 161 between the two halves of the lower blade portion 114a. Likewise, the signal (and other) terminals 140, 141 or 140\141 can be separated from each other on the lower blade portion 114a by a similar air gap 162, which is defined by the channel 163 formed on the lower blade portion 114a. As shown in Figure 6, these channels 163 only partially extend through the thickness of the lower blade portion 114a, thereby maintaining the structural integrity of the lower blade portion. Referring now to Figures 4 and 4A, a plug connector 170 is shown. Relative to the mating connector 104, the connector has an insulated connector housing 171 made of insulating material, The structure complementary to the removable connector 110 facilitates and ensures the correct fit therebetween. At this point, the connector housing 171 has a base 172, from which two parts 173 extend from the base 172. The two parts are separated by a gap 174, which are used as the grooves and sockets of the receptacle 134 of the socket-type connector housing body. Type connector 134 can be located on the upper blade part, as shown in Figures 2, 3, 6 and 7, or it can be formed on the lower blade part, as shown in Figures 9C and 17. The housing is hollow and contains Signal, ground, and other terminals fixed in the inner cavity (not shown) of the housing 171 · Two terminals are shown in FIGS. 10A and 10B, which are representative of the type of terminal structure suitable for the plug connector 110 10A shows a ground terminal 180, which has a flat body portion 181 that interconnects the contact portion 182 with the wire termination portion 183. The terminal 180 has a hollow space received at the end of the connector housing 171 Free end 184 in cavity 175. Fusion part
00813021.3 No.
The 182 is bent at an upward angle so that it protrudes from the contact opening 176 and is aligned with and opposite to the corresponding ground terminal 150 or 150 of the orange socket connector 110.
The signal terminal 190 (FIG. 10B) is similarly structured and has a body portion 191 having a reduced width compared to the width of the ground terminal body portion 181 in order to achieve coupling between the signal terminal and the ground terminal. The body portion 191 interconnects the receiving compartment portion 192 and the terminal portion 193, and the contact portion 192 is also bent at an angle to extend through the corresponding opening 176 of the connector housing 171. These openings and the terminal contact portion appear in the connection On the lower surface of the base portion 172, as shown in Figure 9C, and they are aligned with the free end of the terminal cavity 175, the cavity is shown in front of the connector housing 171.
The grounded signal terminals 180, 190 (and other terminals) of the off-hook connector 170 can be regarded as "movable" contacts, because when the plug connector 170 is engaged with the receptacle connector 110, they are connected towards the plug. The center offset of the connector housing 171, the ground and signal terminals 140, 141, 150 (and other terminals) can be regarded as "fixed" terminals because they do not move during the joining and disengagement of the two connectors. In In the schematic diagrams of FIGS. 9A and 9B, the solid rectangle represents the above-mentioned "movable" terminal, and the adjacent rectangle of the dashed line represents the above-mentioned fixed terminal. These figures together with FIGS. 5A and 5B show the triangular relationship between the differential signal lines TPA+, TPA- and their associated ground terminals TPA (G). Each of these terminals can be regarded as forming a vertex of a triangle formed when an imaginary line is drawn by interconnecting adjacent terminals as shown by dotted line R in FIG. 9B. In this and the implementation of the present invention, the ground terminal can be regarded as the apex of an imaginary triangle, or "tip". In a manner consistent with the above disclosure, relative to the circuit board connector and its signal terminals and ground terminals 140, 140 ,, 141, 141" and 150, 150, through its shape and through the above-mentioned triangular relationship, the terminals 180, 190 of the cable connector 170 can also provide the required impedance.
As shown in FIGS. 10A and 10B, the ground and signal terminals 180, 190 respectively have their respective contact portions 182, 192, which are opposite to the ground and signal terminals 150, 140 of the circuit board connector 110 and the opposite fusion portions 153, 143 As shown in FIG. 9C, these cable connector terminal contact portions 182, 192 have a length approximately equal to the corresponding length of the terminal contact portions 153, 143 of the circuit board connector 110. It can be expected that the ground terminal contact portion of the cable connector The width and surface area of 182 do not have to be increased, because when the two connectors 110, 170 are joined together, the geometry of the circuit board connector contact portions 153, 143 will dictate the mating connector, and because of the appearance in the area III of FIG. 13 Impedance formed by matching bonding·
00813021.3 First, in order to maintain the required impedance and electrical performance, as shown in FIGS. 10A and 10B, and as described above, the interconnected body portion 181 of the ground terminal 180 is larger than and narrowed to the interconnected body portion 191 of the two signal terminals One or both of them. This increase in width also increases the surface area of the ground terminal in this area, that is, the body part of the connector, which increases the ground terminal 180 and its two associated signal terminals Capacitive coupling between 19Q. As shown in Figure 9C, these terminals 180, 190 are also offset along their contact portions 182, 192, along their body portions 181, 191, and are shown as solid rectangles in Figures 9A and 9B, It is arranged in a triangular relationship with the cable connector ground terminal 180 and is located at the apex of the triangle. It can be seen that this triangular relationship will continue to maintain the electrical balance of the connector system from the circuit board to the cable through the interface. In the best implementation process of the embodiment of the invention, the width of the ground terminal body portion 181 is preferably twice that of any one of the corresponding signal terminal body portions 191. In FIG. 10B, the body portion 191 of the signal terminal 190 is shown to have a slightly triangular configuration at the rear portion thereof. This specific part is used to form a joint with the connector housing 171, and the terminal 190 is fixed in the connector housing 171 after molding. Due to the difference in terminal geometry, the The cable connector 105 can similarly maintain the relationship between the width of the circuit board connector 110 and the surface area.
The size and structure of the termination portions of the cable connector terminals 180, 190 can also not only maintain the beneficial electrical relationship established in the cable 105 and the cable connector 104, but also maintain the approximate geometric shape of the cable 105 in the connector termination area, It is advantageous for the cable 105 to be terminated with such a connector 104.
By manipulating the distance between the ground of the circuit board connector and the signal terminal, the impedance of the system can be changed or "tuned", especially the impedance of the circuit board connector. Because of the capacitance between the two signal terminals and the ground terminal of the connector Coupling, so it can achieve the above purpose. The spacing of the terminals also affects the impedance of the system. This relationship is clearly shown in Figure 16, which shows the impedance curve that people hope to obtain using the system of the present invention, where the impedance is grounded As a function of the distance of terminal G from the baseline, the signal terminals S1 and S2 taken by the two correlations of the system are placed along the baseline. The first line is shown as a solid line, which is marked as 1° on the left side of Figure 16. In this line, the ground terminal G is flush with the two associated signal terminals S1 and S2, which will be in the normal single row of the connector See in the layout.
The second line of interest in Figure 16 is marked "2" and is shown by a dotted line, which represents the impedance value that appears when the ground terminal G rises from the initial plane it shares with the two signal terminals S1 and S2. In this line, it can be seen that the two slaughter values have been reduced, and the interconnection Hupo has been reduced.
00813021.3 Move the first grounding terminal G to its preferred distance, which is marked with "3" on the left side of Figure 16. This line is represented by a dashed line. In this line, it can be seen that the two peaks have been basically flattened and the interconnection pie slope has risen, thereby smoothing the impedance curve and reducing the very steep and dark peaks and valleys. In Figure 16 from "2" In the optimal interval indicated, the triangular relationship between the three signal terminals and the ground terminal is close to an equilateral triangle, and the intermediate interval indicated by "2" shows a triangular relationship close to an isosceles triangle. Use other triangle relationships.
Other relationships are shown in FIGS. 17A to 17C. In FIG. 17A, a terminal triangular layout including a ground terminal 150 and two signal terminals 140, 141 is shown, but the signal terminals are wires or other different from The round shape of the flat rectangular terminal. In this layout, an imaginary line (shown as a dashed line) drawn through the terminal will form an imaginary triangle. In Fig. 17B, the imaginary line is drawn through the center of the terminals 140, 141, and 150 to form an imaginary equilateral triangle. Similarly, the imaginary line is drawn through the terminal again, but the formation is an unequal triangle. The signal terminal 140 in Fig. 17C , 141 can be changed in their orientation, and can be located on different horizontal planes PL1 and PL2 and the plane PL3 where the ground terminal 150 is located. In this type of terminal orientation, the structure of the connector housing can be modified to form a difference Two rows of support signal terminals. With this structure, the height difference between the two signal terminals can make the connector use the terminal height difference to form "keying". It should be understood that these figures are only the connector of the present invention There are many examples of different triangular forms that can be used. The width of the ground and signal terminals also affects the coupling and impedance of the system. It also includes the resistance of the terminal and secondly is a function of the size of the terminal. Before, as shown in Figure 5B, the ground terminal The contact portion 153 of 150 has been shown to have a connection headquarters with two associated signal terminals 140, 141 Compared to the increased width of the sub-143, or the surface area · the width of the ground terminal can also be increased in other parts.
Referring now to FIG. 14, the back end of the circuit board connector of the present invention is generally labeled 800. The connector 800 has a series of conductive ends extending through an outer wall or wall 801. In this embodiment, two sets are shown. "Triples", and each triad includes a ground terminal 802 and two associated signal terminals 810, 811. It can also include other terminals such as power and status terminals 820, 821. These terminals are from behind The end face enters the connector, and then a suitable insulating material is molded around it to form the connector·
00813021.3 The ground terminal shown in Figure 14 has a contact or mating portion 804 that extends cantilevered from the terminal body or transition portion 805, and the transition portion 805 can extend until they meet the mounting portion, which can be a surface mount portion as described above 807, or through-hole mounting portion 806. In this type of connector structure, the width of the ground terminal of the connector 800 can be increased along its extension, so that the ground terminal 802 has a larger surface area and gives it two Two associated signal terminals 810, 811 bring greater surface area. Figure 15 shows the connection of Figure 14 in a surface mount application, and also shows the increased width of the body or transition portion of the ground terminal 802 How to align with the body or transition part of the signal terminal, so as not to excessively increase the size of the connector 800 and the entire "print".
Although the preferred embodiments of the present invention have been shown and described, for those skilled in the art, changes and adjustments can be made to this without departing from the spirit of the present invention, and the scope of which is determined by the appended rights Request limited
00813021.3
9 sheets
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Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| DE19821868A1 | Cites | Germany | Search report |
| US4337989A | Cites | United States of America | Search report |
| US4678121A | Cites | United States of America | Search report |
| US4824383A | Cites | United States of America | Search report |
| US4981447A | Cites | United States of America | Search report |
| DE19821868A | Cites | Germany | Search report |
43 members in 10 offices
Priority claims10
| Document | Office | Kind | Date |
|---|---|---|---|
| 09356205 | United States of America | – | |
| 35620599 | United States of America | A | |
| 35620599 | United States of America | A | |
| 09607234 | United States of America | – | |
| 60723400 | United States of America | A | |
| 60723400 | United States of America | A | |
| 09356205 | – | – | – |
| 09607234 | – | – | – |
| US19990356205 | – | – | – |
| US20000607234 | – | – | – |
Members43
| Document | Office | Kind | |
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| WO0106602A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU6218200A | Australia | A | |
| US6280209B1 | United States of America | B1 | |
| TW456619U | Taiwan Province of China | U | |
| WO0176015A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU6350900A | Australia | A | |
| TW470243U | Taiwan Province of China | U | |
| KR20020020783A | Republic of Korea | A | |
| EP1196967A1 | European Patent Office (EPO) | A1 | |
| US6454605B1 | United States of America | B1 | |
| US6457983B1 | United States of America | B1 | |
| CN1375119A | China | A | |
| KR20020087110A | Republic of Korea | A | |
| US2003017730A1 | United States of America | A1 | |
| JP2003505826A | Japan | A | |
| US2003032316A1 | United States of America | A1 | |
| TW536005U | Taiwan Province of China | U | |
| US6575789B2 | United States of America | B2 | |
| JP2003529908A | Japan | A | |
| CN1452800A | China | A | |
| EP1410464A1 | European Patent Office (EPO) | A1 | |
| EP1460732A2 | European Patent Office (EPO) | A2 | |
| EP1196967B1 | European Patent Office (EPO) | B1 | |
| AT278257T | Austria | T | |
| ATE278257T1 | Austria | T1 | |
| DE60014385D1 | Germany | D1 | |
| KR100456490B1 | Republic of Korea | B1 | |
| JP2005005272A | Japan | A | |
| EP1460732A3 | European Patent Office (EPO) | A3 | |
| JP3616874B2 | Japan | B2 | |
| KR100490271B1 | Republic of Korea | B1 | |
| US6945796B2 | United States of America | B2 | |
| US2005260872A1 | United States of America | A1 | |
| DE60014385T2 | Germany | T2 | |
| US7165981B2 | United States of America | B2 | |
| CN100409503CThis record | China | C | |
| CN100416924C | China | C | |
| JP2009135122A | Japan | A | |
| JP4285597B2 | Japan | B2 | |
| JP2009140936A | Japan | A | |
| JP4310789B2 | Japan | B2 | |
| JP4652454B2 | Japan | B2 | |
| JP4652461B2 | Japan | B2 |
5 legal events, as the office reported them to INPADOC
Over the term
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| Event | Code | |
|---|---|---|
| Expiry of patent termCX01 | CX01 | |
| Grant of patent or utility modelGrantedC14 | C14 | |
| Entry into substantive examinationC10 | C10 | |
| PublicationC06 | C06 | |
| Entry into substantive examinationC10 | C10 |
Numbers
- Publication
- 100409503
- Publication, DOCDB
- 100409503
- Publication, EPODOC
- CN100409503C
- Application
- 8130213
- Application, DOCDB
- 00813021
- Application, EPODOC
- CN20008003021
Titles2
- Chinese
- 阻抗调谐的连接器
- English
- Impedance tuned connector
Classification
- CPC, 5
- H01R12/724
- H01R13/6471
- H01R13/6473
- H01R13/6585
- H01R13/6474
- IPC, 12
- H01R24 00
- H01R4 58
- H01R4 66
- H01R12 72
- H01R13 6471
- H01R13 6473
- H01R13 6474
- H01R13 652
- H01R13 6585
- H05K5 02
- H01R12 22
- H01R13 658