Connector with built-in charging integrated circuit

Connector with built-in charging integrated circuit

This creation is related to connectors, especially connectors with charging integrated circuits inside.

With the development of the semiconductor industry, various electronic devices have been introduced. In recent years, all kinds of portable electronic devices, such as smart mobile phones, tablets, digital cameras, MP3 players and portables, have been the most popular in the market. Hard disk and so on.

As mentioned above, the portable electronic devices described above are not large in size, so the battery capacity used is also limited. Moreover, with the popularization of Universal Serial Bus (USB) connectors, almost all portable electronic devices are equipped with USB ports, so that users can directly access the USB port through the USB interface. Some portable electronic devices are very convenient for charging. Furthermore, although some electronic devices do not have USB ports (such as products produced by Apple), they can still be connected to the USB ports on the computer through the conversion of the transmission line. , The computer can output the charging current through the USB port on it, and then provide it to the electronic device that does not have the USB port through the transmission line.

However, due to the specifications, the standard power supply specifications of the USB connector are output voltage 5V, output current 0.5A, and output power 2.5W. Therefore, when charging some electronic devices with larger battery capacity, the charging time is obviously too long, which may cause slight inconvenience to the user. And, taking the iPad produced by Apple as an example, its battery capacity is as high as 24.8Wh. For the iPad battery, the power provided by the standard USB port is too small. Therefore, Apple does not allow users to pass the USB on the computer side. Port to charge the iPad.

Therefore, a charging integrated circuit (IC) has recently appeared on the market, which is mainly installed on the motherboard of a computer. When the motherboard wants to output charging current through the USB port on it, it is first After being processed by the charging IC to increase the amount of charging current, it is output from the USB port. In this way, when the USB port is to charge the portable electronic device connected to it, its output power can be increased. This not only shortens the time it takes to fully charge the battery, moreover, because the output power of the USB port is increased, electronic devices that cannot be charged due to low output power (such as the above-mentioned iPad) can pass smoothly. USB port for charging.

However, the charging IC actually occupies a limited configuration space on the motherboard, and if the motherboard is a notebook computer or a barebones system motherboard, the space on it will be further compressed. Therefore, in order to save space on the motherboard, there are not many motherboards willing to install the charging IC.

In view of this, how to use the charging IC to increase the charging current output by the motherboard without occupying the valuable configuration space on the motherboard due to the charging IC is a subject that people in the technical field have devoted themselves to research.

The main purpose of this creation is to provide a connector with a built-in charging integrated circuit, which can adjust the amount of charging current provided by the electronic device through the built-in charging integrated circuit The output power of the output.

To achieve the above purpose, this creation mainly includes an insulating body, an insulating base, a plurality of connecting terminals, a circuit board, a charging integrated circuit, and a plurality of transfer terminals. One end of the insulating body is extended with a tongue, and the tongue is provided with a plurality of terminal slots; the plurality of connection terminals, the plurality of transfer terminals and the charging integrated circuit are electrically connected to the circuit board; the insulating base body is used to carry the circuit board and is used for insulation When the base body is assembled with the insulating body, the plural connecting terminals can be placed in the plural terminal grooves.

Compared with the previous technology, the effect of this creation is that the output power of the electronic device can be controlled and increased by the charging integrated circuit. In this way, it can support devices with higher voltage requirements to charge through the connector, and speed up the charging. time. Furthermore, the charging integrated circuit is directly arranged inside the connector without installing the main board of the electronic device, which can actually reduce the occupation space on the main board.

In order to have a more detailed understanding of the characteristics and technical content of this creation, please refer to the description and drawings described below. However, the attached drawings are for reference only and not for limitation.

First, please refer to the first figure, which is a three-dimensional exploded view of the connector of a preferred embodiment of the creation. The present invention discloses a connector 1 with a built-in charging integrated circuit, and the connector 1 is a connector interface capable of supporting power output, such as Universal Serial Bus (USB) 2.0 Or 3.0 connector, but not limited.

When the connector 1 is provided on the motherboard of an electronic device (the motherboard 2 shown in the third figure), the electronic device can be connected to an external electronic device through the connector 1 (either directly or through Transmission line transfer), and the motherboard 2 can provide a charging current, and the charging current is processed through the connector 1, and then output to the external electronic device, so as to charge the external electronic device.

In this embodiment, the connector 1 mainly includes an insulating body 11, an insulating base body 12, a plurality of connecting terminals 13, a circuit board 14, a charging integrated circuit (IC) 15, and a plurality of transfer terminals 16. A tongue 110 extends outward from one side of the insulating body 11, and a plurality of terminal grooves 1101 (such as the terminal groove 1101 shown in the third figure) are arranged in the tongue. The insulating base 12 is provided with a carrying portion 121 for supporting the circuit board 14, and the insulating base 12 is assembled to the other side of the insulating body 11 away from the tongue 110.

One end of the plurality of connecting terminals 13 is electrically connected to the circuit board 14 respectively, and the other end extends in the terminal slot 1101 in the tongue 110 and is exposed outside the tongue 110 for external connection. The plurality of connecting terminals 13 and the tongue 110 on the insulating body 11 jointly form a connecting port on the connector 1 (such as the connecting port 100 shown in the second figure). In this embodiment, the plurality of The number of connection terminals 13 is four, and the plurality of connection terminals 13 and the insulating body 11 together form a universal serial bus (USB) standard connection port 100, but it is not limited.

The charging IC 15 is electrically connected to the circuit board 14 and is electrically connected to the plurality of connection terminals 13 through the circuit board 14. The charging IC 15 is mainly used to adjust the charging current provided by the motherboard 2 and then External output is provided through the plurality of connection terminals 13.

One end of the plurality of transfer terminals 16 is respectively electrically connected to the circuit board 14 so as to be electrically connected to the charging IC 15 through the circuit board 14, and the other end respectively extends toward the other side away from the circuit board 14 and protrudes Out of the bottom of the connector 1, the connector 1 is electrically connected to the motherboard 2 through the plurality of transfer terminals 16.

As shown in the figure, the connector 1 further includes a metal shell 17 for covering the insulating body 11, the insulating base 12, the plurality of connecting terminals 13, the circuit board 14, the The charging IC 15 and the plurality of switching terminals 16. Accordingly, the connector 1 provides a metal shielding effect through the metal shell 17 to reduce noise interference. Wherein, an opening is defined on the front surface of the metal shell 17, and the connection port 100 is exposed outside the connector 1 through the opening for external insertion.

It is worth mentioning that a metal conductive portion 122 may be further provided on the insulating base 12, and the metal conductive portion 122 contacts the ground pins of the plurality of connecting terminals 13 and the metal shell 17 at the same time. More specifically, the ground pins in the plurality of connection terminals 13 are not electrically connected to the circuit board 14, but are directly electrically connected to the metal shell 17 through the metal conductive portion 122, so that the metal shell The body 17 directly provides the grounding effect of the connector 1. In this way, the charging IC 15 does not need to have a pin for processing ground signals, and when the connector 1 is electrically connected to the motherboard 2, it does not need to be connected to the ground wire on the motherboard 2. However, the above is only a preferred specific embodiment of this creation, and should not be limited thereto.

Please refer to the second and third figures at the same time, which are respectively a three-dimensional assembly diagram and a side view of the connector of a preferred embodiment of the creation. As shown in the figure, the connector 1 is mainly electrically connected to the motherboard 2 through the plurality of transfer terminals 16, and is connected to the external through the connection port 100 composed of the tongue 110 and the plurality of connection terminals 13 A male connector 3. In this embodiment, the connection port 100 is a female USB connector, and the male connector 3 is a USB connector male, but it is not limited. When the connector male 3 is plugged into the connection port 100 on the connector 1, and the internal terminals of the connector 3 are electrically connected to the plurality of connection terminals 13, the connector 3 is sufficient The connector 1 receives the digital data transmitted by the motherboard 2, and can receive the electrical energy output by the motherboard 2 through the connector 1.

In this embodiment, when the motherboard 2 detects that the connector male 3 is connected to the connector 1, it provides the output charging current to the connector 1, and the charging current passes through the plurality of transfer terminals 16. It is passed to the charging IC15 and processed by the charging IC15. The charging IC 15 can mainly increase the amount of the charging current, and control the generated voltage not to be too high, so that the electronic device (not shown in the figure) connected to the other end of the connector male 3 will not be burned. Finally, the processed charging current is output to the connector male 3 through the plurality of connecting terminals 13, so that the connector male 3 is transferred to the electronic device connected to the other end to charge the electronic device action.

In this embodiment, the number of terminals at the input end of the connector 1 is the same as the number of terminals at the output end, that is, the number of the plurality of connecting terminals 13 is the same as the number of the plurality of switching terminals 16. More specifically, in this embodiment, the number of the plurality of connection terminals 13 on the connector 1 is mainly four, and the number of the plurality of transfer terminals 16 is also four.

Please refer to the fourth figure, which is a schematic diagram of the connection circuit of a preferred embodiment of the creation. As shown in the figure, the charging IC 15 mainly has eight sets of pins and a ground pad (GND PAD), and more specifically, the charging IC 15 can mainly be a chip IC of model SLG5583 or SLG5583A, but is not limited. Among the eight sets of pins of the charging IC 15, three sets of pins are electrically connected to the plurality of connecting terminals 13, and the other five sets of pins, two sets of pins are connected in series with each other through a resistor, so there are four sets of pins. The bit is electrically connected to the plurality of transfer terminals 16. Among them, three of the plurality of connecting terminals 13 are electrically connected to the three sets of pins on the charging IC 15, and the other connecting terminal 13 is a grounding pin, which is electrically connected to the metal shell 17 through the metal conductive portion 122 Sexual connection.

As shown in the figure, among the three groups of pins that are electrically connected to the charging IC 15 and the plurality of connection terminals 13, they mainly include a current detection control output pin (CEN) and two data input pins (DM, DP). The current detection control output pin (CEN) is connected to the electrical signal pin (VBUS) in the USB specification, and the two data input pins (DM, DP) are connected to the positive data pin and the negative data pin ( D+, D-).

In addition, the five sets of pins electrically connected to the charging IC 15 and the plurality of transfer terminals 16 mainly include a switch control bit pin (CB), two power input pins (VDD, SMART-CDP), and two transmission pins. Data output pins (TDM-, TDP+). Wherein, the two power input pins (VDD, SMART-CDP) are connected in series with each other through a resistor, and are connected to the motherboard 2 through the same transfer terminal 16. The two power input pins (VDD, SMART-CDP) are used to receive the charging current from the motherboard 2, and the charging IC 15 refers to the state of other pins to determine what to do with the received charging current . In addition, the two transmission data output pins (TDM-, TDP+) are used to transmit digital data between the connector 1 and the motherboard 2, but do not involve the transfer of charging current.

It is worth mentioning that the switch control bit pin (CB) is connected to the hardware use pin on the motherboard 2, and the motherboard 2 can use the hardware use pin. It is determined whether the connector 1 connected to it is an ordinary USB connector or the connector 1 with a built-in charging integrated circuit as shown in this embodiment. In this way, whether it is a normal USB connector or the connector 1 disclosed in this creation, both can be correctly judged by the motherboard 2 and compatible for use. More specifically, the connector 1 in this creation is still electrically connected to the motherboard 2 through the four transfer terminals 16, but the four transfer terminals 16 do not include a ground pin, instead It is the adapter terminal connected to the hardware use pin on the motherboard 2.

As mentioned above, the connector 1 in this embodiment is not electrically connected to the ground wire on the motherboard 2. Therefore, for the safety of the connector 1, this embodiment mainly adds two technical features :

1) One of the plurality of connecting terminals 13 is directly electrically connected to the metal shell 17 on the connector 1 to produce a grounding effect; and

2) Between the two data input pins (DM, DP), one or more protection elements 152 are provided.

Among them, the protection element 152 shown in the fourth figure is taken as an example, and the protection element 152 may mainly be a gas discharge tube (Gas Discharge Tube, GDT) or a transient voltage suppressor (Transient Voltage Suppressor, TVS), etc. , But not limited. In this way, even if the connector 1 is not connected to the ground wire on the motherboard 2, the use safety of the connector 1 can be improved by the above technical features.

Furthermore, the current detection control output pin (CEN) on the charging IC 15 can be electrically connected to the electrical signal pin (VBUS) on the plurality of connection terminals 13 through a switch 151. In this way, the charging The IC 15 can simultaneously send a signal to the switch 151 when outputting the charging current, so as to improve the safety of the connector 1 in use. For example, the charging IC 15 can continuously detect the charging status of the electronic device at the other end of the connector male 3, and send a signal to the switch 151 when the electronic device is fully charged to turn off the switch 151 , So that the electronic device will no longer continue to receive charging current, so as not to burn. However, the above are only preferred examples of this creation, and should not be limited thereto.

Please refer to the fifth and sixth figures at the same time, which are respectively the front view of the connector and the schematic diagram of the connection circuit of another preferred embodiment of the creation. As shown in the fifth figure, another connector 1'is disclosed in this embodiment. The connector 1'has the same insulating body 11, insulating base 12, multiple connection terminals 13, and circuit board as the connector 1. 14. In addition, the connector 1'has a charging IC 18 and a plurality of switching terminals 19 that are different from the above-mentioned embodiment.

In this embodiment, the number of terminals at the output end of the connector 1 is different from the number of terminals at the input end, that is, the number of the plurality of connecting terminals 13 and the number of the plurality of switching terminals 19 are different. More specifically, in this embodiment, the number of the plurality of connection terminals 13 on the connector 1'is at least four, and the number of the plurality of transfer terminals 19 is at least ten, but it is not limited.

The main board 2 (the main board 2 shown in the third figure) provides the output charging current, which is transmitted to the connector 1'through the transfer terminals 19, and then by the connector 1'inside the connector 1'. Charge IC18 for processing. The charging IC 18 increases the current amount of the charging current and controls the generated voltage not to be too high. Finally, the processed charging current is then output to the connector male (such as the connector male 3 shown in the third figure) through the plurality of connecting terminals 13, whereby the connector male 3 Transfer to the electronic device connected to the other end to charge the electronic device. Moreover, the electronic device is simultaneously electrically connected to the connector 1'through the connector male 3', and is connected to the motherboard 2 through the plurality of connection terminals 13 and the plurality of transfer terminals 19 on the connector 1'. Transfer digital data to each other.

As shown in the sixth figure, the charging IC 18 mainly has sixteen sets of pins, and more specifically, the charging IC 18 can mainly be a chip IC of model TPS2543 or TPS2544, but is not limited. Among the sixteen sets of pins of the charging IC 18, four sets of pins are electrically connected to the plurality of connection terminals 13, ten sets of pins are electrically connected to the plurality of transfer terminals 19, and there are two sets of pins through resistors Grounded.

Among the four sets of pins electrically connected to the charging IC 18 and the plurality of connection terminals 13, mainly include a power output pin (OUT), two data input pins (DM_IN, DP_IN), and a ground pin (GND). The power output pin is connected to the electrical signal pin (VBUS) in the USB specification, the two data input pins are connected to the positive data pin and the negative data pin (D+, D-) in the USB specification, and in the USB specification The ground pin of and the ground pin of the charging IC18 are grounded at the same time. It is worth mentioning that, in this embodiment, the ground pins in the plurality of connecting terminals 13 can also be electrically connected to the metal shell 17 through the metal conductive portion 122 on the insulating base 12 to Achieve grounding effect, but not limited.

In addition, the ten sets of pins electrically connected to the charging IC 18 and the plurality of transfer terminals 19 mainly include a power input pin (IN), a status signal pin (STATUS), and a detection signal pin (FAULT). , Uniformity pin (EN), four control pins (ILIM_SEL, CTL1, CTL2, CTL3), and two data output pins (DM_OUT, DP_OUT). The power input pin is used to receive the charging current from the motherboard 2, and the charging IC 18 refers to the state of other pins to determine what to do with the received charging current. In addition, the two data output pins are used to transmit digital data between the connector 1 and the motherboard 2, but do not involve current transmission.

Through the connector 1, 1'of this invention, the charging IC 15 and 18 can be used to increase the output charging current, thereby speeding up the time for the connector 1, 1'to charge an external electronic device. Furthermore, after the output power of the connector 1, 1'is increased, it can also support electronic devices (such as the iPad device produced by Apple) that have high voltage requirements and cannot be charged through a traditional USB connector. More importantly, the charging ICs 15 and 18 are directly arranged inside the connectors 1, 1'and not on the motherboard 2. Therefore, the valuable configuration space on the motherboard 2 can be effectively saved. In addition, the saved space can be used to add higher-specification chips, or to effectively reduce the size of the motherboard 2, which is beneficial to the development and production of the motherboard.

The above is only a specific description of a preferred embodiment of this creation, and is not intended to limit the scope of patents of this creation, and any other equivalent changes shall all fall within the scope of the patent application described later.

<p>1, 1'Connector</p><p>11Insulation body</p><p>110Tongue</p><p>1101Terminal slot</p><p>100Port</p><p>12Insulation base</p><p>121Carrier Department</p><p>122Metal conduction part</p><p>13Connecting terminal</p><p>14Circuit board</p><p>15, 18Charging integrated circuit</p><p>151Toggle switch</p><p>152Protection element</p><p>16,19Adapter terminal</p><p>17Metal shell</p><p>2Motherboard</p><p>3Connector male</p>

The first figure is a three-dimensional exploded view of the connector of a preferred embodiment of this creation.

The second figure is a three-dimensional assembly diagram of the connector of a preferred embodiment of the creation.

The third figure is a side view of the connector of a preferred embodiment of this creation.

The fourth figure is a schematic diagram of the connection circuit of a preferred embodiment of the creation.

The fifth figure is a front view of the connector of another preferred embodiment of this creation.

The sixth figure is a schematic diagram of the connection circuit of another preferred embodiment of the creation.