CN201113078Y - electrical connector - Google Patents

Abstract

An electrical connector, which includes an insulating body, a first terminal group, and a second terminal group, the insulating body is arranged side by side with a first plug-in interface extending from the first terminal group, and a second plug-in port extending on one side of the first plug-in port. The second plug interface of the two terminal groups, the first plug interface includes a first tongue plate, the first terminal group includes a first terminal and a second terminal, the first terminal includes a first contact portion, and the second terminal includes a second terminal Two contact parts, the first contact part and the second contact part are jointly arranged under the first tongue plate, and the heights of the first contact part and the second contact part in the thickness direction of the first tongue plate are different, the first tongue plate The transmission rate can be increased by adding a second terminal on the board.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector which can be welded to a circuit board.

【Background technique】

As a standard input/output interface, the Universal Serial Bus (USB) interface has been widely used in the design of many electronic devices. In 1994, seven world-renowned computer and communication companies including Intel, Compaq, Digital, IBM, Microsoft, NEC, and Northern Telecom jointly established the USB Association (USB-IF), initially establishing the USB interface specification. So far, the USB Association has released versions 1.0, 1.1 and 2.0.

The above-mentioned USB 1.0, 1.1, and 2.0 versions support the following three transmission rates respectively: (1), the low-speed mode transmission rate is 1.5 Mbits per second, mostly used for keyboards and mice; (2), the full-speed mode transmission rate is 12 Mbits per second; (3), the high-speed mode transmission rate is 480 megabits per second.

However, with the development of the electronics industry, even the transmission rate of USB 2.0 can no longer meet the development requirements of some electronics industries. For example, in the case of transmitting audio or video, in order to ensure the quality of signal transmission, the transmission rate is often as high as 1G to 2G per second (1G = 1000 megabits). The other two types of interfaces in the field of electrical connectors, such as PCI-E (transmission rate up to 2.5G per second) and SATA interface (transmission rate up to 1.5G to 3.0G per second), have significantly exceeded the transmission rate of USB 2.0 interface.

However, the application of PCI-E and SATA interfaces is far behind that of USB, and these two types of interfaces have a large number of terminals and large volumes, and it is difficult to adapt to the future development trend of light, thin, short, and small electronics industry.

Therefore, in view of the above technical problems, it is necessary to provide an electrical connector with an improved structure to overcome the above defects.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector which can increase the transmission rate.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an electrical connector, which includes an insulating body, a first terminal group and a second terminal group, the insulating body is arranged side by side with a first socket and a socket located at the first socket The second socket on one side, the first socket includes a first tongue plate, the second socket includes a second tongue plate, the first terminal group is set on the first tongue plate, and the second terminal group is set on the second tongue plate. On the tongue plate, wherein the first terminal group includes a plurality of first terminals and a plurality of second terminals, the first terminal includes a first contact portion, the second terminal includes a second contact portion, the first contact portion and the second contact The parts are jointly arranged under the first tongue plate, and the heights of the first contact portion and the second contact portion are different in the thickness direction of the first tongue plate.

Compared with the prior art, the utility model has the following beneficial effects: the transmission rate can be improved by adding the second terminal on the first tongue plate, and in addition, setting the second plug interface on one side of the first plug interface can save the power. The space occupied by the connector in the up and down direction.

Below in conjunction with accompanying drawing and preferred embodiment the utility model is described further.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 2 is a three-dimensional combined view of Fig. 1 from another angle.

FIG. 3 is a partially exploded view of FIG. 2 .

FIG. 4 is a partially exploded view of the electrical connector of the present invention.

FIG. 5 is a partially exploded view of FIG. 4 from another angle.

Fig. 6 is a three-dimensional assembled view of another embodiment of the present invention.

FIG. 7 is a docking connector with a USB standard transmission interface in the prior art.

【Detailed ways】

1 and 4, the electrical connector 100 of the present invention includes an insulating body 1, a shell 2 covering the insulating body 1, a first terminal group 3 and a second terminal set on the insulating body 1. Group 4 , the first inner shell 5 , the second inner shell 6 , the first positioning block 7 and the second positioning block 8 assembled on the insulating body 1 .

The insulating body 1 is integrally provided with a first socket 10 and a second socket 11 located on the right side of the first socket 10, the first socket 10 includes a first tongue plate 12, and the first terminal group 3 is arranged on the first socket 10. On the tongue plate 12, the second socket 11 includes a second tongue plate 18, and the second terminal group 4 is arranged on the second tongue plate 18. In this embodiment, because the first socket 10 and its corresponding first The terminal group 3, the first inner shell 5, the first positioning block 7 are completely the same as the second socket 11 and its corresponding second terminal group 4, the second inner shell 6, and the second positioning block 8, therefore, the following will The first socket 10 is taken as the main object for description. 1 to 5, the first socket 10 includes a housing cavity 15, the first tongue plate 12 is located in the housing cavity 15, and the bottom 121 of the first tongue plate 12 is provided along the width direction of the first tongue plate 12. The first receiving groove 123 arranged in a row and the second receiving groove 124 located in front of the first receiving groove 123, the upper part 122 of the first tongue plate 12 is provided with the third receiving groove 125 arranged along the width direction of the first tongue plate 12, the second receiving groove 125 arranged along the width direction of the first tongue plate 12, A groove 126 communicating with the second receiving groove 124 and the third receiving groove 125 is formed on the front end of the tongue plate 12 . The rear end of the insulating body 1 corresponding to the first socket 10 is provided with a retaining groove 13 and a receiving space 14 , the insulating body 1 is provided with grooves 16 on both sides of the receiving space 14 , and the two sides of the insulating body 1 are provided with square grooves 17 .

The first terminal group 3 includes a number of first terminals 31 and a number of second terminals 32. The first terminals 31 have the same structure, and they all include a first contact portion 33, which can be welded on a circuit board (not shown). The first welding part 35 and the first holding part 34 connecting the first contact part 33 and the first welding part 35, the first contact part 33 is a curved arc structure, and the first contact part 33 is accommodated in the first housing The groove 123 protrudes downwards outside the first receiving groove 123 and protrudes into the receiving cavity 15. The first holding portion 34 extends backward from the rear end of the first contact portion 33 and is bent downward. The first holding portion 34 is fixed in the insulating housing 1 , and the downwardly bent portion of the first holding portion 34 is fixed on the holding groove 13 . The arrangement of the first terminals 31 on the first tongue plate 12 conforms to the USB transmission interface standard. Specifically, the first terminals 31 include four terminals, which are respectively a power supply terminal 311 and a pair of first differential signal terminals 312. , a first ground terminal 313 , and a pair of first differential signal terminals 312 located between the power terminal 311 and the first ground terminal 313 . The second terminals 32 have the same structure, and they all include a flat second contact portion 36, a second holding portion 37 and a second welding portion 38 that can be welded to the circuit board, and the second holding portion 37 is connected to the second contact portion. 36 and the second welding part 38, the second holding part 37 is formed by bending from the front end of the second contact part 36, extending backward for a certain distance, and then bending and extending downward. The second contact part 36 is accommodated in the second receiving groove 124, because the first contact portion 33 protrudes downwards outside the first receiving groove 123, therefore, the heights of the first contact portion 33 and the second contact portion 36 in the thickness direction of the first tongue plate 12 are different, that is, the first contact The portion 33 goes downward beyond the plane where the second contact portion 36 is located, the second holding portion 37 is accommodated in the third receiving groove 125, and the bent section between the second holding portion 37 and the second contact portion 36 is accommodated in the groove 126 Inside. The second terminal 32 includes two pairs of second differential signal terminals 321 and a second ground terminal 322. After assembly, the second ground terminal 322 is located between the two pairs of second differential signal terminals 321 to reduce the Crosstalk between the second differential signal terminals 321 .

Elastic pieces 51 are provided on the upper surface, the lower surface and both sides of the first inner shell 5 , and the rear ends of the upper and lower surfaces of the first inner shell 5 and the rear ends of both sides are provided with inserting pins 53 extending backward. The first inner shell 5 is assembled in the first socket 10 , and the pins 53 on the first inner shell 5 are fixed on the insulating body 1 .

The first positioning block 7 is assembled on the receiving space 14 at the rear end of the insulating body 1, and the two sides of the first positioning block 7 are provided with a holding block 76 that matches the groove 16 on the insulating body 1, and the first positioning block 7 is provided with A positioning hole 72 is provided, and the positioning hole 72 matches with the second holding portion 37 of the second terminal 32 .

The shell 2 is covered on the insulating body 1, the front end of the shell 2 is provided with a first frame opening 20 and a second frame port 21 corresponding to the first socket 10 and the second socket 11, and the two sides of the shell 2 are provided with cards 27 , The lower end of the shell 2 is provided with a buckling piece 22 . The card 27 fits with the square grooves 17 on both sides of the insulating body 1 , and the buckling piece 22 at the lower end of the shell 2 is buckled under the insulating body 1 .

Please refer to FIG. 2 , FIG. 3 and FIG. 7 , in the electrical connector 100 , the first socket 10 and the first contact portion 33 of the first terminal 31 and the second contact portion of the second terminal 32 are arranged therein. The contact portion 36 forms a first docking portion 101, and the first terminal 31 on the first docking portion 101 can be docked with a docking connector 200 with a USB standard transmission interface in the prior art, so the first tongue plate 12 The size is roughly the same as the size of the tongue plate of the USB standard transmission interface in the prior art, that is, the first tongue plate 12 has the second terminal 32 added on the basis of the same length, width and thickness. When the docking connector 200 of the USB standard transmission interface is docked, since the second contact portion 36 is flat and accommodated in the second receiving groove 124, the conductive terminal 207 on the docking connector 200 will not rub against the second contact portion 36 . Since the added second terminal 32 includes a second differential signal terminal 321, when the first terminal 31 and the second terminal 32 on the first docking part 101 are connected to the corresponding docking connector (not shown) at the same time, Greatly improve the transmission speed of the signal. Similarly, the second socket 11 and its corresponding second terminal group 4 form a second docking portion 102 , and the transmission interface formed by the second docking portion 102 and the first docking portion 101 is exactly the same. The second socket 11 is located at one side of the first socket 10 to save space occupied by the electrical connector 100 in the up-down direction.

In other embodiments of the present utility model, as shown in FIG. 6, the first socket 10 and the second socket 11 of the insulating body 1 may not be assembled with the first inner shell 5 and the second inner shell 6, and the same can be achieved. purpose of the utility model. In addition, the second docking part 102 can adopt a completely different transmission interface from the first docking part 101, such as SATA, HDMI, USB and other standard transmission interfaces different from the first docking part 101, and the second docking part 102 and The first butt joint part 101 can be respectively formed on the two insulating bodies and then assembled together along the left and right directions, which can also achieve the purpose of the utility model.

Claims (10)

1. An electrical connector, which includes an insulating body, a first terminal group and a second terminal group, the insulating body is provided with a first socket and a second socket on one side of the first socket side by side, the first socket The interface includes a first tongue plate, the second plug interface includes a second tongue plate, the first terminal group is arranged on the first tongue plate, and the second terminal group is arranged on the second tongue plate, characterized in that: the first terminal The group includes a number of first terminals and a number of second terminals, the first terminal includes a first contact portion, the second terminal includes a second contact portion, and the first contact portion and the second contact portion are jointly arranged on the first tongue plate below, and the heights of the first contact portion and the second contact portion are different in the thickness direction of the first tongue plate. 2. The electrical connector according to claim 1, wherein a first receiving groove and a second receiving groove located in front of the first receiving groove are provided under the first tongue plate, and the first contact portion is accommodated in the first receiving groove. A receiving groove protrudes from the first receiving groove, and the second contact part is accommodated in the second receiving groove. 3. The electrical connector according to claim 1, wherein the first contact portion is an arc-shaped structure, and the second contact portion is a flat-shaped structure. 4. The electrical connector according to claim 1, wherein the first terminal further comprises a first welding portion and a first holding portion connecting the first contact portion and the first welding portion, the first The holding part extends from the rear end of the first contact part and is fixed on the insulating body. The second terminal also includes a second welding part and a second holding part connecting the second contact part and the second welding part. The second The holding part is bent from the front end of the second contact part, extends backward and is fixed on the insulating body. 5 . The electrical connector as claimed in claim 4 , wherein a third receiving groove is provided above the first tongue plate, and the second holding portion is received in the third receiving groove. 5 . 6. The electrical connector according to claim 1, characterized in that: the first terminal provided on the first tongue plate can be docked with a docking connector with a USB standard transmission interface, and the first terminal includes a second A power terminal, a pair of first differential signal terminals and a first ground terminal, the pair of first differential signal terminals are located between the first power terminal and the first ground terminal. 7. The electrical connector according to claim 1, wherein the second terminal comprises two pairs of second differential signal terminals and a second ground terminal, and the second ground terminal is located between the two pairs of second differential signal terminals between. 8. The electrical connector according to claim 1, wherein the electrical connector comprises a first inner shell assembled on the first socket and an outer shell covering the insulating body, the first inner shell is provided with There are plug pins matched with the insulating body. 9. The electrical connector according to claim 1, wherein the rear end of the insulating body is provided with a holding groove for fixing the first terminal, the electrical connector includes a first positioning block matched with the insulating body, and the first positioning The block is provided with a positioning hole for fixing the second terminal. 10. The electrical connector as claimed in claim 1, wherein the first socket and the second socket are integrally formed on the same insulating body.

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