Electrical connector

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having an improved screening device.

In the electronics industry, usually the electrical connector is mounted on a circuit board, and other electronic devices are connected to the electrical connector through the insertion and removal of the contact portion. A related art can be referred to the U.S. Patent No. 5,899,776, which is incorporated herein by reference. The insulating body is provided with a base portion and a contact portion assembled at a front portion of the base portion. The contact portion is provided with a terminal receiving groove, and the terminal is received in the terminal receiving groove. The metal housing includes a mating frame surrounding the contact portion and an ear portion extending toward the both sides of the docking frame. The ear portion and the two ends of the base portion are respectively provided with through holes, and the metal shell is tightly coupled to the insulating body by the cooperation of the square head rivets and the through holes, and is abutted on the grabbing plate member by the square head rivet, thereby The metal housing is grounded.

The electrical connector as described above, although the combination of the metal casing and the insulating body is relatively stable, however, since the metal casing is coupled to the insulating body by the riveting method, the structure is relatively complicated, the cost is relatively high, and the riveting is adopted. The combination method requires opening holes on both sides of the metal casing and both sides of the insulating body, which inevitably increases the size of the electrical connector and does not conform to the development trend of miniaturization of the electrical connector.

Therefore, it is indeed necessary to provide an electrical connector that overcomes the aforementioned drawbacks.

The technical problem to be solved by the present invention is to provide an electrical connector which is simple in structure and small in configuration.

In order to achieve the above object, the present invention adopts the following technical solution: an electrical connector includes: an insulative housing, a terminal, a metal housing, and a holding member; the insulative housing includes a base and an abutting portion extending forward from the base, The end of the base portion is provided with a through hole extending from the top to the bottom and an arm hole communicating with the insertion hole is provided from the front to the rear at a position adjacent to the insertion hole; the terminal is fixed on the insulative body, and the extension portion is extended on the butt portion And a connecting portion electrically connected to the circuit board; the metal housing is provided with an extending arm extending rearwardly received in the arm hole, the extending arm is provided with a holding portion held on the holding member, and the The metal housing is assembled to the insulative housing from the front to the rear; the holding member is retained in the insertion hole of the base, and includes a body portion for receiving the dry socket and a holding leg extending downward from the body portion.

Compared with the prior art, the present electrical connector has the following effects: the metal housing of the present electrical connector is held by the extending arm extending rearwardly and the holding member held on the insulating body, thereby stabilizing the metal housing in the insulation On the body, it is not easy to fall off.

Referring to the first to fourth figures, the present electrical connector includes an insulative housing 1, a metal housing 2, a positioning plate 3, a holding member 4, and a plurality of terminals 5.

The insulative housing 1 includes an elongated base portion 13 and an abutting portion extending forwardly from the base portion 13. The abutting portion is a tongue plate 11, and the upper and lower walls of the tongue plate 11 are respectively provided with terminal receiving slots 112. The accommodating groove 112 extends through the base portion 13; the rear portion of the longitudinal base portion 13 integrally extends with a positioning block 12, and a plurality of positioning slots 121 are defined in the bottom surface of the positioning block 12, and the positioning groove 121 and the terminal on the upper wall of the tongue plate 11 are received. The slots 112 are on the same vertical plane and the locating slots extend through the rear wall of the locating block 12. The lower rear portion of the positioning block 12 is provided with a receiving space of the positioning plate 3. The upper portion of the base portion 13 is provided with a recessed groove 19 and a projection 17 located in the recessed groove 19. The upper edge of the base portion is provided with a retaining member insertion hole 18 which is vertically penetrated, and a rearwardly extending arm hole 15 is opened at the front portion of the base portion. The insertion direction of the insertion hole 18 is perpendicular to the extending direction of the arm hole 15 and the insertion hole 18 communicates with the arm hole 15. In the present embodiment, the insertion hole 18 is located outside the arm hole 15. A groove 14 is defined in the two end walls of the accommodating space of the locating plate, and a positioning post 131 is disposed at the bottom of the base. The front of the positioning post 131 is provided with a vertical wall at both ends of the base, and a hole 16 is formed in the vertical wall. .

As shown in the third figure, the terminal 5 includes a horizontally extending contact portion 51 received in the terminal receiving groove 112, a bent portion 54 that is bent upward from the contact portion 51, and is substantially parallel to the rear from the bent portion 54. The extending portion 53 extending horizontally of the contact portion 51 and the connecting portion 52 bent downward from the extending portion are electrically connected to the connecting portion 52 on the circuit board, and the extending portion 53 of each terminal is located above the contact portion 51 and received in the tongue plate The extending portion of the terminal of the upper wall of the tongue plate 11 is received in the extending portion of the terminal of the lower wall of the tongue plate 11. The extending portion 53 of the terminal received in the upper wall of the tongue plate 11 is received in the positioning groove 121, thereby reducing electricity. The height of the connector, and the positioning of the terminal is better.

The metal housing 2 includes a "D" shaped docking frame 24 surrounding the tongue 11 of the insulative housing 1, and a protrusion 22 extending from the upper portion of the mating frame 24 rearwardly in the recess 19, respectively on the upper ends of the mating frame 24 A pair of extending arms 21 extending rearwardly from the arm holes 15 and a pair of hooks 23 extending from the lower sides of the docking frame 24 to the card holes 16 of the vertical wall are respectively extended rearward. The protrusion 22 is provided with an opening 221 that engages with the protrusion 17 in the slot 19, and the extension arm 21 is provided with an elastic piece 210 extending to the insertion hole 18 and bent at the rear end of the elastic piece 210 to extend The hook portion 211 in the hole 18, the elastic piece extends substantially obliquely downward.

The positioning plate 3 includes a first step surface which is lower on the front side and a second step surface which is higher on the rear side, and each of the step faces is provided with two rows of staggered insertion holes 32 for positioning the connection of the terminal 5. The portion 52 of the first step surface is used for positioning the connecting portion 52 of the terminal 5 received in the upper wall receiving groove 112 of the tongue plate 11. The socket 32 on the second step surface is used for positioning and receiving the tongue plate. 11 The connecting portion 52 of the terminal 5 in the lower wall receiving groove 112. In addition, a pair of hooks 31 are respectively disposed at two ends of each step surface for engaging with the grooves 14 on the two end walls of the receiving space.

The holding member 4 is retained in the insertion hole 18 and is provided with a body portion 42 and a holding leg 41 extending integrally downward from the body portion 42.

Referring to the fifth and sixth figures, the elastic piece 210 of the extension arm 21 abuts against the body portion 42 of the holding member 4 and the body portion 42 is located in front of the hook portion 211 when the metal casing 2 receives a forward force. When the hook portion 211 is hooked on the body portion 42 of the holding member 4, the metal housing 2 can be prevented from being detached from the insulating body 1, so that the metal housing 2 and the insulating body 1 are better combined and the hook is fastened. The combination of the mating means that the parts of the electrical connector are relatively small and the structure is relatively simple. The holding leg 41 is exposed from the lower portion of the insulative housing 1 and can be soldered to the circuit board for holding and grounding. Since the extension arm 21 is located substantially at both ends of the docking frame 24, and the distance between the two extension arms 21 is substantially equal to the length of the docking frame 24, this design can make the dimension of the electrical connector in the longitudinal direction relatively small.

In addition, the elastic piece 210 may be replaced with other structures suitable for being electrically connected to the holding member 4, such as bumps. These structures are collectively referred to as a connecting portion, and the connecting portion may also be located on the holding member 4.

The hook portion 211 may also be replaced with a through hole provided in the extending arm 21, and the holding member 4 is inserted into the through hole to hold the extending arm 21, and all of the hook portions 211, the through holes and the other are suitable for holding the extending arm 21 at The structure on the holder 4 is collectively referred to as a holding portion.

In summary, this creation has indeed met the requirements of the new patent, and filed a patent application in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereby. Equivalent modifications or variations made by those of ordinary skill in the art in the spirit of the present invention are still covered by the appended claims.

<p>Insulating body. . . 1</p><p>Tongue board. . . 11</p><p>Storage tank. . . 112</p><p>Positioning block. . . 12</p><p>Positioning slot. . . 121</p><p>Base. . . 13</p><p>Positioning column. . . 131</p><p>Trench. . . 14</p><p>Arm hole. . . 15</p><p>Card hole. . . 16</p><p>Bump. . . 17</p><p>Jack. . . 18</p><p>Insert slot. . . 19</p><p>Metal housing. . . 2</p><p>Extension arm. . . twenty one</p><p>shrapnel. . . 210</p><p>Hook. . . 211</p><p>Highlights. . . twenty two</p><p>Opening. . . 221</p><p>Hook. . . twenty three</p><p>Docking box. . . twenty four</p><p>Positioning plate. . . 3</p><p>Buckle. . . 31</p><p>Jack. . . 32</p><p>Holder. . . 4</p><p>Hold the foot. . . 41</p><p>Body part. . . 42</p><p>Terminal. . . 5</p><p>Contact part. . . 51</p><p>Connection. . . 52</p><p>Extension. . . 53</p><p>Bending section. . . 54</p>

The first figure is a perspective view of the present electrical connector.

The second figure is a perspective view of another angle of the present electrical connector.

The third figure is an exploded perspective view of the present electrical connector.

The fourth figure is an exploded perspective view of another angle of the present electrical connector.

The fifth drawing is a partial cross-sectional view taken along line V-V shown in the second figure.

The sixth figure is a view in which the holder is separated as shown in the fifth figure.