TWI868335B - Electrical connector and assembly thereof - Google Patents

Abstract

An electrical connector for mounting on a circuit board includes an insulating body, a plurality of conductive terminals fixed on the insulating body, and a metal shell covering the insulating body. The metal shell includes a top wall, a bottom wall and two side walls located on the left and right sides respectively. The top wall and the bottom wall are opposite to each other in the up and down direction. The rear of the two side walls respectively form a first pin extending downward, and the electrical connector is installed on the circuit board by the pins. In addition, the pins are arranged asymmetrically to improve the gripping force of the electrical connector, ensure the stability of the electrical connector installation and meet the high requirements of the vehicle.

Description

Electrical connector and assembly thereof

The present invention relates to an electrical connector and a combination thereof, and more particularly to an electrical connector and a combination thereof for mounting on both sides of a circuit board.

Known technology US invention patent No. US7540742B2 discloses a board connector, which includes a connector mounted on the ground surface of a motherboard and a second connector mounted on the top surface of the motherboard. US invention patent No. US5316488 discloses an IC card connector device, which includes a plug connector device, and the plug connector device includes an upper plug connector and a lower plug connector mounted on the motherboard. In the above structure, the gripping force of the connectors mounted on both sides of the motherboard is not strong, and it is easy to fall off during use, resulting in poor product and signal contact.

Therefore, it is necessary to provide an improved electrical connector and combination thereof to overcome the above-mentioned defects.

The object of the present invention is to provide an electrical connector assembly with high gripping force.

The object of the present invention is achieved by the following technical solution: an electrical connector for mounting on a circuit board, the electrical connector comprising an insulating body, a plurality of conductive terminals fixed on the insulating body, and a metal shell covering the insulating body; the metal shell comprises a top wall and a bottom wall arranged opposite to each other in the upper and lower directions, and two side walls located on the left and right sides; a first pin extending downward for mounting on the circuit board is formed at the rear of the two side walls, and the two first pins are arranged asymmetrically.

Compared with the prior art, the present invention has the following beneficial effects: the present invention sets the pins of the electrical connector to an asymmetric structure so as to be better installed on both sides of the circuit board, improve the gripping force of the electrical connector, and ensure the stability of the installation of the electrical connector.

In the present invention, the X direction in the first figure is defined as the left-right direction, the Y direction is defined as the up-down direction, and the Z direction is defined as the front-back direction.

Please refer to the first to eighth figures, which are the first embodiment of the present invention, an electrical connector assembly 1000 includes a circuit board 300 and a pair of electrical connectors 100 respectively mounted on the upper and lower sides of the aforementioned circuit board 300, and the pair of electrical connectors 100 are arranged symmetrically with respect to the center. The aforementioned circuit board 300 includes an upper surface 301 and a lower surface 302 arranged oppositely, a plurality of mounting holes 303, and four positioning holes 304 penetrating the aforementioned upper and lower surfaces 301 and 302. The mounting holes 303 of the aforementioned circuit board 300 include four first mounting holes 303a arranged separately and two third mounting holes 303b arranged separately. The aforementioned first mounting holes 303a are arranged in pairs, and the first mounting holes 303a arranged in pairs are arranged adjacent to each other at intervals on the left and right. The four positioning holes 304 are located at the four corners of the rectangle.

As shown in FIG. 8 , the electrical connector 100 includes an insulating body 1 , a plurality of conductive terminals 2 fixed to the insulating body 1 , and a metal shell 3 covering the insulating body 1 .

The insulating body 1 includes a base 11, a tongue plate 12 protruding forward from the base 11, and a support plate 13 extending horizontally from the bottom of the base 11 to the bottom of the tongue plate 12. The support plate 13 is provided with a pair of positioning posts 14 protruding downward to be fixed to the circuit board 300. The positioning posts 14 are arranged staggered with each other in the left-right and front-back directions at the same time. Specifically, the pair of positioning posts 14 are located on the diagonal of the rectangle. The pair of positioning posts 14 of each electrical connector 100 are respectively received in the positioning holes 304 arranged diagonally. The positioning posts 14 can enable the electrical connector 100 to be accurately installed on the circuit board 300 and remain stable when the electrical connector 100 is welded. The supporting plate 13 is used to support the electrical connector 100 and to position the height between the electrical connector 100 and the circuit board 300 to prevent the electrical connector 100 from being installed too high or too low.

Please refer to the second to fifth figures, the metal housing 3 includes a top wall 31, a bottom wall 32, and two side walls 33 located on the left and right sides, and a receiving cavity 34 formed by the top wall 31, the bottom wall 32 and the two side walls 33. The tongue plate 12 of the insulating body 1 is received in the receiving cavity 34. Each of the electrical connectors 100 is also provided with a plurality of pins 35 mounted on the circuit board 300, and the plurality of pins 35 are received in the corresponding mounting holes 303. The pins 35 of the pair of electrical connectors 100 located on the upper and lower sides of the circuit board 300 are respectively received in different mounting holes. The pins 35 include a pair of first pins 35a and 35b extending downward from the rear of the two side walls 33 and a third pin 35c extending downward from the bottom wall 32 to be mounted on the circuit board 300. The first pins 35a and 35b are asymmetrically arranged, and their direct distances from the center line of the insulating body 1 in the left and right directions are not equal, please refer to Figure 7. In this embodiment, the first pin 35a is arranged in a "7" shape extending downward from the side wall 33, and the first pin 35b is arranged to extend vertically downward from the side wall 33. The distance d1 from the first pin 35a to the center line is greater than the distance d2 from the first pin 35b to the center line. The third pin 35c is located at a side away from the center of the insulating body 1 along the left-right direction. After the pair of electrical connectors are installed on the circuit board, the corresponding third pins 35c are arranged in a staggered manner along the left-right direction (see the fourth figure).

As shown in the fourth and fifth figures, the first pins 35a and 35b of the pair of electrical connectors are respectively received in the corresponding first mounting holes 303a. Specifically, the two first mounting holes 303a arranged in pairs respectively receive the first pins 35a and 35b, and the first pins 35a are arranged outside the first pins 35b, and are arranged adjacent to each other on the left and right. A pair of third pins 35c are respectively inserted into the corresponding third mounting holes 303b, and the pair of third pins 35c are arranged adjacent to each other on the left and right.

Please refer to FIG. 9 to FIG. 12 , which are the second embodiment of the present invention. The structure of the electrical connector assembly of this embodiment is substantially the same as that of the first embodiment, with the main differences being as follows.

The electrical connector assembly 1000' comprises a circuit board 300' and a pair of electrical connectors 100' respectively mounted on the upper and lower sides of the circuit board 300'.

The circuit board 300' includes two first mounting holes 305a and a third mounting hole 305b which are separately arranged.

The two first pins 36a and 36b corresponding to each other on the upper and lower sides of the pair of electrical connectors 100' are received in the corresponding first mounting hole 305a. The first pins 36a and 36b corresponding to each other on the upper and lower sides of the pair of electrical connectors 100' are arranged side by side in the same hole, and the first pin 36a is arranged outside the first pin 36b. The third pins 36c of the pair of electrical connectors 100' are received in the corresponding third mounting hole 305b, and the two third pins 36c in the same third mounting hole 305b are arranged side by side in a side-by-side manner.

As shown in FIGS. 13 to 20 , the structure of the third embodiment is substantially the same as that of the first embodiment, and the differences are as follows.

An electrical connector assembly 2000 includes a circuit board 400 and a pair of electrical connectors 200 respectively mounted on the upper and lower sides of the circuit board 400. The circuit board 400 is provided with a plurality of mounting holes 403. The pair of electrical connectors 200 are centrally symmetrically arranged.

The pair of pins 45 of the electrical connector 200 are respectively received in different mounting holes 403. The pins 45 include a pair of first pins 45a and 45b extending downward from the rear of the two side walls and a pair of second pins 45c and 45d extending downward from the front of the two side walls for mounting on the circuit board 400. In the present embodiment, the first pins 45a and 45b are asymmetrically arranged, the pair of first pins 45a and 45b are staggered with each other in the front-rear direction and the first pin 45a is arranged behind the first pin 45b. The pair of second pins 45c, 45d are located in front of the first pins 45a, 45b and are asymmetrically arranged. The second pins 45c, 45d are staggered with each other in the front-rear direction and the second pin 45c is located in front of the second pin 45d. The second pins 45c, 45d of each of the side walls are located on the outer side of the corresponding first pins 45a, 45b in the left-right direction.

The aforementioned mounting holes 403 include two first mounting holes 403a and a second mounting hole 403b which are separately arranged. The aforementioned first mounting holes 403a are arranged in pairs and each pair of first mounting holes 403a is arranged adjacent to each other in front and back. The two first pins 45a and 45b corresponding to each other in the upper and lower parts of the pair of electrical connectors 200 are received in the corresponding first mounting holes 403a. The second pins 45c and 45d of the pair of electrical connectors 200 are respectively received in the corresponding second mounting holes 403b.

Please refer to Figures 21 to 22, which are related drawings of the fourth embodiment of the present invention. The structure of the fourth embodiment is roughly the same as that of the third embodiment, and the differences are as follows.

The electrical connector assembly 2000' comprises a circuit board 400' and a pair of electrical connectors 200' respectively mounted on the upper and lower sides of the circuit board 400'.

The circuit board 400' includes two first mounting holes 405a and a second mounting hole 405b which are separately arranged.

The two first pins 46a and 46b corresponding to each other on the upper and lower sides of the pair of electrical connectors 200' are received in the corresponding first mounting hole 405a. The first pins 46a and 46b corresponding to each other on the upper and lower sides of the pair of electrical connectors 200' are arranged side by side in the same hole, and the first pin 46a is arranged outside the first pin 46b. The second pins 46c and 46d of the pair of electrical connectors 200' are received in the corresponding second mounting hole 405b, and the two second pins 46c and 46d in the same second mounting hole 405b are arranged side by side in a side-by-side manner.

In the above four embodiments, in order to save production costs and facilitate assembly, the electrical connectors on the upper and lower sides of the circuit board are set to have the same structure. Of course, in other embodiments, electrical connectors with different structures can also be used to adapt to different circuit designs and signal transmission requirements.

At the same time, in the present invention, a pair of electrical connectors are fixed on the circuit board by socket welding to improve the gripping force of the electrical connectors and ensure the stability of the connection of the electrical connectors. However, in other implementations, board mounting or other methods can also be used for assembly, which are not listed here one by one.

The present invention has the following beneficial effects:

1. The plugs of the electrical connector are arranged in an asymmetric structure, that is, the plugs are arranged in an asymmetric structure in front and back or left and right, so as to adapt to installing the two electrical connectors on the upper and lower sides of the circuit board, thereby saving manufacturing costs.

2. Installing two electrical connectors with the same structure on the upper and lower sides of the circuit board can better meet the needs of automotive connectors. At the same time, it can also improve the gripping force of the upper and lower connectors to prevent unstable connection during use, resulting in poor contact and affecting signal transmission.

The above are only partial implementations of the present invention, not all implementations. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the scope of the patent application of the present invention.

1000, 1000', 2000, 2000': electrical connector assembly 100, 100', 200, 200': electrical connector 1: insulating body 11: base 12: tongue plate 13: support plate 14: positioning column 2: conductive terminal 3: metal shell 31: top wall 32: bottom wall 33: side wall 34: receiving cavity 35: pin 35a, 35b, 36a, 36b, 45a, 45b, 46a, 46b: first pin 45c, 45d , 46c, 46d: second pin 35c, 36c: third pin 300: circuit board 301: upper surface 302: lower surface 303, 403: mounting holes 305a, 403a, 405a, 303a: first mounting hole 403b, 405b: second mounting hole 303b, 305b: third mounting hole 304: positioning hole

FIG1 is a three-dimensional schematic diagram of an electrical connector assembly according to a first embodiment of the present invention;

The second figure is a three-dimensional exploded view of the electrical connector assembly according to the first embodiment of the present invention;

The third figure is a three-dimensional schematic diagram of the second figure from another angle;

FIG4 is a cross-sectional view along dotted line IV-IV of FIG1;

FIG5 is a cross-sectional view along the dotted line V-V of FIG1;

FIG6 is a three-dimensional schematic diagram of the electrical connector in FIG1;

FIG. 7 is a cross-sectional view taken along dotted line VII-VII of FIG. 6;

FIG8 is a three-dimensional exploded view of the electrical connector in FIG6;

FIG9 is a three-dimensional schematic diagram of an electrical connector assembly according to a second embodiment of the present invention;

FIG. 10 is a three-dimensional exploded view of the electrical connector assembly according to the second embodiment of the present invention;

FIG11 is a cross-sectional view taken along the dotted line Ⅺ-Ⅺ of FIG9;

FIG12 is a cross-sectional view taken along the dotted line XII-XII of FIG9;

FIG13 is a three-dimensional schematic diagram of an electrical connector assembly according to a third embodiment of the present invention;

FIG14 is a three-dimensional schematic diagram of FIG13 from another angle;

FIG15 is a three-dimensional exploded view of the electrical connector assembly according to the third embodiment of the present invention;

FIG16 is a three-dimensional schematic diagram of FIG15 from another angle;

FIG. 17 is a cross-sectional view taken along the dotted line XVII-XVII of FIG. 13

FIG. 18 is a cross-sectional view taken along the dotted line XVIII-XVIII of FIG. 13

FIG. 19 is a three-dimensional schematic diagram of the electrical connector of FIG. 15

FIG. 20 is a right side view of the electrical connector of FIG. 19

FIG21 is a perspective exploded view of the electrical connector assembly according to the fourth embodiment of the present invention; and

FIG. 22 is a cross-sectional view of the first pin of the electrical connector assembly according to the fourth embodiment of the present invention.

without

100:Electrical connector

13: Support plate

14: Positioning column

34: Receiving chamber

35a, 35b: First pin

35c: Third pin

300: Circuit board

303:Mounting hole

304: Positioning hole

Claims (10)

An electrical connector for mounting on a circuit board, the electrical connector comprising: an insulating body; a plurality of conductive terminals fixed on the insulating body; and a metal shell covering the insulating body, the metal shell comprising a top wall, a bottom wall and two side walls on the left and right sides; wherein, a first pin extending downward for mounting on the circuit board is formed at the rear of the two side walls, and the two first pins are arranged asymmetrically. An electrical connector as described in claim 1, wherein the two first pins are staggered relative to each other in the front-rear direction or the straight line distances relative to the center line of the insulating body in the left-right direction are unequal. An electrical connector as described in claim 2, wherein a second pin extending downward is formed in front of the two side walls for installation on the circuit board, and the second pin is located in front of the first pin and is asymmetrically arranged. An electrical connector as described in claim 3, wherein the second pins are arranged staggered with each other in the front-rear direction, and the second pin of each side wall is located on the outer side of the corresponding first pin in the left-right direction. As for the electrical connector described in claim 4, the bottom wall is provided with a third pin extending downward to be mounted on the circuit board, and the third pin is located on a side away from the center position of the electrical connector along the left-right direction. An electrical connector as described in claim 1, wherein the insulating body includes a base, a tongue plate protruding forward from the base, and a support plate extending horizontally from the bottom of the base to the bottom of the tongue plate, the top wall, bottom wall and two side walls of the metal shell together form a receiving cavity for accommodating the tongue plate, the support plate is provided with a pair of positioning posts protruding downward to be fixed to the circuit board, and the positioning posts are simultaneously arranged to be staggered with each other in the left-right and front-back directions. An electrical connector assembly, comprising: Two electrical connectors, respectively used to be mounted on the upper and lower surfaces of a circuit board, the two electrical connectors being arranged symmetrically in the center; each electrical connector comprising an insulating body, a plurality of conductive terminals fixed to the insulating body, and a metal shell covering the insulating body; the metal shell comprising a top wall, a bottom wall and two side walls disposed opposite to each other in the upper and lower directions; Wherein, a first pin extending downward to be mounted on the circuit board is formed at the rear of the two side walls, and the two first pins are arranged asymmetrically. An electrical connector assembly as described in claim 7, wherein the first pins corresponding to the two electrical connectors are arranged to be staggered with each other in the front-to-back direction or the left-to-right direction after being installed on the circuit board. An electrical connector assembly as described in claim 8, wherein the front of the two side walls respectively forms a second pin extending downward to be installed on the circuit board, and after the two electrical connectors are installed on the circuit board, the corresponding second pins are arranged staggered with each other in the front-to-rear direction. An electrical connector assembly as described in claim 9, wherein the bottom wall is provided with a third pin extending downwardly for installation on the circuit board, the third pin being located on a side away from the center position of the electrical connector along the left-right direction, and after the two electrical connectors are installed on the circuit board, the corresponding third pins are arranged staggered with each other along the left-right direction.