CN201142397Y - electrical connector - Google Patents

Abstract

An electrical connector, which is installed on a printed circuit board, includes an insulating body and a number of terminals accommodated in the insulating body, and the terminals include a contact portion at one end that is docked with a mating element and a contact portion at the other end. The abutting portion is electrically connected to the printed circuit board in an elastic abutting manner.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector connected with a printed circuit board in a non-welding manner.

【Background technique】

In the current electronic field, electronic devices tend to be miniaturized day by day. In order to adapt to this trend, electrical connectors are also developing towards the trend of lightness, thinness, shortness and smallness. For example, Japanese Patent Application Publication No. JP 11-12118 discloses an electrical connector that adopts a sinking plate structure to reduce the space it occupies after being assembled on a circuit board. It includes an insulating body and a number of terminals. However, In order to correspond to the sinking plate structure, the terminal needs to be bent several times, that is, it extends backward from the contact part that is docked with the butt connector, then bends upward and extends upward, then extends backward horizontally and then extends downward. In this way, the terminal Manufacturing is complicated, and terminal performance is affected. In view of this defect, a kind of splint structure is developed as disclosed in Taiwan Patent Publication No. 454981 to reduce the space occupied by the connector after it is assembled on the circuit board. It includes an insulating body, a shielding shell Body and several terminals, the two sides of the insulating body extend back the positioning seat, and there is a slot on the positioning seat, and the printed circuit board is inserted into the slot horizontally. At this time, the terminal tail is located on the upper and lower sides of the printed circuit board in the form of a splint. The tail is cantilever-shaped and there is no other holding structure to hold it and the printed circuit board, so the terminal tail must be welded to the printed circuit board by surface welding technology (SMT), that is, the electrical connector has to go through the welding process.

Therefore, it is necessary to design an electrical connector that can overcome the above defects.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electrical connector in which the terminal and the printed circuit board are electrically connected by means of elastic abutment.

In order to solve the above problems, the utility model adopts the following technical solutions: an electrical connector, which is installed on a printed circuit board, which includes an insulating body and a number of terminals accommodated in the insulating body, and the terminals include a butt joint at one end The contact part where the components are butted and the abutting part provided at the other end thereof, the abutting part is electrically connected with the printed circuit board in an elastic abutting manner.

Compared with the prior art, the electrical connector of the utility model has the following beneficial effects: the terminal and the printed circuit board are electrically connected in an elastic abutting manner without going through a welding process.

【Description of drawings】

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

FIG. 2 is a perspective combined view of FIG. 1 from another perspective.

FIG. 3 is an exploded perspective view of FIG. 2 .

FIG. 4 is a perspective view of a second body of the electrical connector of the present invention shown in FIG. 1 .

FIG. 5 is an assembled view of the electrical connector of the present invention shown in FIG. 1 when the second shielding shell is not assembled.

Fig. 6 is a cross-sectional view along line A-A of Fig. 5 .

FIG. 7 is a cross-sectional view of the electrical connector shown in FIG. 5 when the printed circuit board is accommodated obliquely.

Fig. 8 is a sectional view along the cross section of the electrical connector of the present invention shown in Fig. 7 when it is mated with the printed circuit board.

9 is a perspective view of the electrical connector of the present invention and the printed circuit board without installing the second shielding shell and bolts.

Fig. 10 is a sectional view along line B-B of Fig. 2 .

【Detailed ways】

Please refer to FIGS. 1 to 6, which disclose an electrical connector 100 mounted on a printed circuit board 5, which includes an insulating body 1, a plurality of first terminals 2 and second terminals accommodated in the insulating body 1. 3. The shielding case 4 and the locking member covering the insulating body 1 , the locking member in this embodiment refers to the nut 6 and the bolts 7 , 8 .

The insulating body 1 includes a first body 11 and a second body 12 . The first body 11 includes a docking portion 111 docked with a docking element (not shown) and a first wing 112 extending from a rear end of the docking portion 111 to both sides. The first wing 112 is provided with a circular opening 113 . The second body 12 includes a positioning seat 121 and second wings 122 extending from the front end of the positioning seat 121 to two sides. A circular opening 123 corresponding to the circular opening 113 on the first wing 112 is formed on the second wing 122 . The bottom wall 1211 of the positioning seat 121 is provided with an upwardly extending guide post 124 and a receiving hole located on the side of the guide post 124. The square opening 127 of. The positioning base 121 has a concave portion 1213 on its side wall 1212 , and a locking slot 1214 on its bottom wall 1211 . The first and second bodies 11 and 12 are respectively provided with a plurality of corresponding first and second receiving channels 114 and 126, and the ends of the first and second receiving channels 114 and 126 are provided with stoppers 1140, 1260.

The first terminal 2 includes a holding portion 20 , a contact arm 21 extending forward from one side of the holding portion 20 and received in the first receiving channel 114 of the first body 11 , and a contact arm 21 extending backward from the other side of the base portion 20 and being received. The abutting arm 22 in the second receiving channel 126 of the second body 12 . The contact arm 21 is provided with a contact portion 210 abutting against the mating element, and the abutment arm 22 is provided with a abutment portion 220 abutted with the printed circuit board 5 . The abutting portions 220 of the first terminals 2 in the upper and lower rows are arranged in a front and rear offset direction along the direction of abutting with the printed circuit board 5 .

The structure of the second terminal 3 is similar to that of the conductive terminal 2. It includes a holding portion 30, a contact arm 31 extending forward from one side of the holding portion 30 and accommodated in the first receiving channel 114 of the first body 11, and a self-holding portion. The other side of the 30 extends backward and is received by the abutting arm 32 in the second receiving channel 126 of the second body 12 . The contact arm 31 is provided with a contact portion 310 abutting against the mating element, and the abutment arm 32 is provided with an abutment portion 320 abutted with the printed circuit board 5 . The abutting portions 320 of the upper and lower rows of second terminals 3 are arranged in a front and rear offset direction along the direction of connecting with the printed circuit board 5 .

The shielding case 4 includes a first shielding case 41 , a second shielding case 42 and a third shielding case 43 . The first shielding shell includes a base plate 411 , a front plate 412 extending upward from a front end of the base plate 411 , and side plates 413 extending upward from both sides of the base plate 411 . A locking piece 4110 extending backward is disposed on the base plate 411 , elastic locking arms 414 extending upward are respectively arranged on both sides of the locking piece 4110 , and hooks 4140 are disposed at ends of the elastic locking arms 414 . The front plate 412 and the side plate 413 are respectively provided with locking holes 4120 and 4130 . The second shielding shell 42 includes a base plate 421 , a front plate 422 extending downward from a front end of the base plate 421 , and side plates 423 respectively extending downward from two sides of the base plate 421 . The front panel 422 and the side panel 423 are respectively provided with engaging pieces 4220 and 4230 protruding inward. At the rear end of the base plate 421, there are also two holding pieces 424 that extend obliquely downward and then extend forward horizontally. The abutment tab 425 at the top of the side wall 1212 of 12. The third shielding shell 43 covers the docking portion 111 of the first body 11 , and includes a docking frame 431 covering the docking portion 111 and a third wing portion 432 extending from the rear end of the docking frame 431 to both sides. A circular opening 4320 is defined on the third wing portion 432 .

The printed circuit board 5 is provided with a slot 52, and a substrate 51 protrudes forward from the inside of the slot 52. The substrate 51 includes a number of conductive pads 511, 512 located on its front and back sides, and conductive pads 511, 512. The oval guide hole 513 and the circular opening 514 at the rear end.

When the electrical connector 100 is assembled, the first and second terminals 2 and 3 are inserted into the first body 11 of the insulating body 1 from the rear to the front. The first receiving channel 114, the ends 211, 311 of the contact arms 21, 31 respectively abut against the stop portion 1140; secondly, the abutting arms 22, 32 of the first and second terminals 2, 3 are accommodated in the The second receiving channel 126 of the second body 12, and the ends 221, 321 of the abutment arms 22, 32 respectively abut against the stopper 1260, at this time, the first wing 112 of the first body 11 and the second The second wings 122 of the body 12 lean against each other, and the first and second bodies 11, 12 are held together by the bolts 7 through the circular openings 113, 123; then, the nut 6 is pressed into the second body 12 In the square opening 127 on the positioning seat 121; finally, the third shielding shell 43 and the first shielding shell 41 are respectively assembled on the first body 11 and the second body 12, and the docking frame of the third shielding shell 43 431 covers the docking portion 111 of the first body 11, the third wing 432 abuts against the front wall of the first wing 112 of the first body 11, and the clamping piece 4110 of the first shielding shell 41 is locked in place. The slot 1214 on the outer side wall of the bottom wall 1211 of the seat 121, the front plate 412 is attached to the third wing 422, the side plate 413 is attached to the side walls of the first wing 112 and the second wing 122, elastically The locking arm 414 is located on two sides of the side wall 1212 of the positioning seat 121 . Please refer to FIG. 7 to FIG. 9, when the electrical connector 100 is combined with the printed circuit board, it first accommodates the printed circuit board 5 at a certain angle, and the abutting parts 220 of the first and second terminals 2 and 3 are arranged up and down. , 320 obliquely accommodate the substrate 51 of the printed circuit board 5, the side wall 1212 and the elastic buckle arm 414 of the positioning seat 121 of the second body 12 are accommodated in the slot 52 of the printed circuit board 5, and the elastic buckle arm 414 can be elastically Concave in the recessed part 1213 of the side wall 1212; Then, through the guidance and cooperation of the guide post 124 and the oval guide hole 513 on the printed circuit board 5, rotate in the counterclockwise direction C until the electrical connector 100 and the printed circuit board 5 are mutually Parallel, at this time, the upper and lower rows of first and second terminals 2, 3 clamp the printed circuit board 5 by means of splints, and their abutting parts 220, 320 are dislocated back and forth and abutted against the front and back surfaces of the printed circuit board 5 On the provided conductive pads 511, 512, the hook 4140 at the end of the elastic locking arm 414 is buckled on the printed circuit board 5; finally, the second shielding shell 42 is covered on the insulating body 1 from top to bottom , the front plate 422 and the side plate 423 are respectively attached to the front plate 412 and the side plate 413 of the first shielding shell 41, and the inwardly protruding holding pieces 4220, 4230 are held in the holding holes 4120, 4130 respectively. After the bolt 8 passes through the circular opening 4240 on the holding piece 424, the circular opening 514 on the printed circuit board 5, and the circular opening 125 on the positioning seat 121, it is assembled into the square opening of the positioning seat 121 before. The nut 6 in 127 cooperates. So far, the electrical connector 100 is closely matched with the printed circuit board 5 .

It can be seen from the above that the first and second terminals 2 and 3 of the electrical connector 100 of the present utility model elastically contact the printed circuit board 5 in the form of splints, that is, they can be kept with the printed circuit board 5 without going through the welding process. Reliable connection.

This specific embodiment only lists the preferred implementation mode of the utility model electrical connector, of course, the utility model electrical connector can also adopt other structures, such as setting the buckle arm on the second body 12 and the printed circuit board 5 The slot 52 cooperates; the first body 11 and the second body 12 can also be set as an integral insulating body, all of which belong to the protection scope of the utility model.

Claims (10)

1. An electrical connector, which is mounted on a printed circuit board, includes an insulating body and a number of terminals accommodated in the insulating body, and the terminals include a contact portion at one end that is docked with an abutting component and at the other end The abutting portion of the present invention is characterized in that: the abutting portion is electrically connected to the printed circuit board in an elastic abutting manner. 2 . The electrical connector according to claim 1 , wherein the abutting portion of the terminal is abutted and connected to the printed circuit board in a splint manner. 3 . 3. The electrical connector according to claim 1 or 2, wherein the abutting portions of the terminals are arranged in a front-rear staggered direction along the direction of abutting with the printed circuit board. 4. The electrical connector according to claim 1 or 2, wherein the insulating body is provided with a receiving channel for receiving the terminal, and the end of the receiving channel is provided with a stopper, and the abutting part of the terminal end against the stopper. 5. The electrical connector according to claim 1 or 2, wherein the insulating body is provided with a guide post for guiding it to receive a printed circuit board. 6. The electrical connector according to claim 1 or 2, wherein the electrical connector comprises a shielding shell, and the shielding shell is provided with elastic latching arms for latching the printed circuit board. 7. The electrical connector according to claim 1 or 2, characterized in that: the electrical connector includes a shielding shell and a locking member, the shielding shell is provided with a holding piece, and the holding piece is provided with a lock hole for snap fit. 8 . The electrical connector as claimed in claim 7 , wherein the insulating body is provided with a receiving hole corresponding to the opening on the holding piece and lockingly matched with the locking member. 9 . 9. The electrical connector according to claim 1 or 2, wherein the insulating body comprises a first body and a second body, and the abutting portion of the terminal is accommodated in the second body. 10. The electrical connector according to claim 1 or 2, wherein the insulating body has a docking portion, and the electrical connector further comprises a shielding shell covering the docking portion.

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