CN201112619Y - electrical connector - Google Patents

Abstract

The utility model discloses an electrical connector, which comprises a first connector and a second connector. The first connector is provided with a first insulating body and a first conductive terminal. The first insulating body is provided with two opposite The first side wall, two opposite first end walls and a first bottom wall, a number of first storage channels are opened on the first side wall, and the first side wall and the first end wall together form a first storage space , the second connector is provided with a second insulating body and a second conductive terminal, the second insulating body is provided with two opposite second side walls, two opposite second end walls and a second bottom wall, the second Several second storage channels are opened on the two side walls, the second side wall and the second end wall together form a second storage space, the second bottom wall protrudes toward the second storage space with a boss portion, the first insulating body The first bottom wall protrudes into the first receiving space with at least one protruding part, and at the corresponding position of the boss part of the second insulating body, there is a concave part matched with the protruding part, the protruding part and the concave part The portion is used to increase the horizontal retaining force between the first connector and the second connector when they are inserted into each other, so as to maintain good mechanical and electrical contact performance between the two connectors.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector electrically connecting two circuit boards.

【Background technique】

The board-to-board electrical connector is used to electrically connect two separated circuit boards, which includes two mutually docked first connectors and second connectors. Related technical documents such as "Board-to-board Connectors Offer Design Flexibility" (Connector Specifier, April 2000) revealed. Existing board-to-board connectors mostly use the insulating body of the first connector and the second connector to squeeze each other and generate considerable friction force, which provides a holding force between the two connectors to connect the first connector and the second connector. The second connector is securely connected. Related patents such as US Patent No. 5,554,036.

The insulating body of this board-to-board connector is made of flat and easily deformable plastic, which provides less friction and is not easy to maintain the holding force between the first connector and the second connector, and repeatedly After plugging and unplugging, the cooperation between the first connector and the second connector is easy to loosen, which causes the holding force between the two connectors to decrease, thereby affecting the electrical connection between the two connectors, and when the two connectors If the holding force between the connectors is too small, they will fall off each other, resulting in failure of mechanical and electrical contact. Thereafter, in order to improve the holding force between the first connector and the second connector, at least one protrusion is provided on the outer wall of the first connector, and a groove is provided at a corresponding position on the inner wall of the second connector, and the first connection After the connector is mated with the second connector, the projections and the grooves squeeze and interfere with each other, which can provide a certain holding force and prevent mis-insertion of the first connector and the second connector.

The aforementioned board-to-board connectors ensure the holding force and stability of the first connector and the second connector in the mating direction, but after repeated plugging and unplugging, the first connector and the second connector are in the horizontal direction. Instability and looseness will also occur on the circuit board, which often causes the conductive terminals received in the two connectors to be misaligned when the first connector and the second connector are connected, causing a short circuit or an open circuit between the circuit boards.

In view of the above disadvantages, it is necessary to design a new type of electrical connector that can solve these disadvantages.

【Content of utility model】

The purpose of this utility model is to provide an electrical connector, which can ensure a better holding force in the horizontal direction between two butt connectors, so as to achieve stable mechanical and electrical contact between the connectors.

In order to achieve the above, the utility model adopts the following technical solution: an electrical connector, including a first connector and a second connector, wherein the first connector includes a first insulating body and a A plurality of first conductive terminals, the first insulating body is provided with an annular peripheral wall, the annular peripheral wall is composed of a pair of laterally extending first side walls, a pair of longitudinally arranged first end walls and a first bottom wall, the first side The wall and the first end wall define a first receiving space, and at least one protruding portion protrudes from a side of the first bottom wall facing the first receiving space. The second connector is plugged and mated with the first connector, and includes a second insulating body and a plurality of second conductive terminals assembled in the second insulating body. The second insulating body also includes an annular peripheral wall, and the annular peripheral wall is respectively composed of It consists of a second laterally extending side wall, a pair of longitudinally arranged second end walls, and a second bottom wall, the second side wall and the second end wall are surrounded to form a second storage space, and the second bottom wall faces the second One side of the accommodating space protrudes upwards with a longitudinally arranged boss portion, wherein a recessed portion matching with the protrusion of the first insulating body is recessed on the boss portion.

Compared with the prior art, the utility model has the following advantages: the first insulating body of the first connector is provided with a protruding part, and the second insulating body of the second connector is provided with a concave part, and the protruding part and the second insulating body are provided with a concave part. When the first connector and the second connector are docked, the recessed parts cooperate with each other to increase the holding force between the first connector and the second connector in the horizontal direction and maintain good mechanical and electrical contact, reducing the The connection misalignment when the first connector is docked with the second connector and the phenomenon of short circuit or open circuit between the circuit boards.

【Description of drawings】

Fig. 1 is a three-dimensional exploded view of the electrical connector of the present invention.

FIG. 2 is an exploded perspective view of the first connector of the electrical connector shown in FIG. 1 .

FIG. 3 is an exploded perspective view of a second connector of the electrical connector shown in FIG. 1 .

FIG. 4 is a perspective assembly view of the electrical connector shown in FIG. 1 .

FIG. 5 is a cross-sectional view of the electrical connector shown in FIG. 4 along line V-V.

【Detailed ways】

Please refer to FIG. 1 , the electrical connector of the present invention includes a first connector 1 and a second connector 2 that are mated with each other, and are mated with each other and respectively fixed on a circuit board (not shown).

Referring to FIGS. 2 and 3 , the first connector 1 includes a first insulating body 10 and first conductive terminals 11 received in the first insulating body 10 . The first insulating body 10 is an elongated plastic shell, which is provided with an annular peripheral wall, the annular peripheral wall is composed of a pair of first side walls 101 extending transversely, a pair of first end walls 102 arranged longitudinally and a The first bottom wall 103 is composed of the first side wall 101 and the first end wall 102 together to form the first receiving space 100 . The side of the first side wall 101 facing away from the first receiving space 100 is provided with a plurality of first receiving channels 1010 arranged laterally along the first insulating body 10 , and the first receiving channels 1010 penetrate through the upper side of the first side wall 101 The first receiving channel 1010 is provided with a baffle part 1011 along the inserting direction of the first connector 1 and the second connector 2, and the middle part of the first end wall 102 is provided with a transverse through the first end wall 102. An opening 1020 in one end wall. The side of the first bottom wall 103 facing the first receiving space 100 is protrudingly provided with a protruding part 1030, and the surface of the first bottom wall 103 corresponding to the lateral sides of the protruding part 1030 is recessed downwards and penetrates through to form a through hole 1031. An interference block 1012 is provided on a portion of the inner surface of the side wall 101 opposite to the protruding portion 1030 .

The first conductive terminal 11 is formed by punching and bending metal, and includes a first elongated welding portion 111 and a substantially “U”-shaped first clamping portion 112 connected to the first welding portion 111 . The first welding portion 111 protrudes from the lower surface of the first insulating body 10 and is welded to the circuit board. The first clamping portion 112 straddles both sides of the baffle portion 1011 of the first insulating body 10 and is completely accommodated in the first receiving groove. 1010, the outer surface of the first clamping portion 112 away from the first welding portion 111 is protrudingly provided with a holding portion 1120, and the holding portion 1120 abuts against the inner wall of the first receiving channel 1010 to stably hold the first conductive terminal 11 on the first receiving channel 1010. In a storage channel 1010 .

The second connector 2 includes a second insulating body 20 and a second conductive terminal 22 accommodated in the second insulating body 20 . The second insulating body 20 is provided with two opposite second side walls 201, two opposite second end walls 202 and a second bottom wall 203, the second side walls 201 and the second end wall 202 are surrounded to form The second receiving space 200 is used for receiving the first insulating body 10 . The inner surface of the second side wall 201 is provided with a plurality of second receiving grooves 2010 arranged horizontally for receiving the second conductive terminals 22, and a plurality of holes 2011 are recessed on the upper surface of the second side wall and correspond to The second storage channels 2010 are connected. The second bottom wall 203 protrudes from the second receiving space 200 with a laterally arranged boss portion 204 , and the two opposite outer surfaces of the boss portion 204 are recessed with interference grooves corresponding to the interference block 1012 of the first insulating body 10 2041, on the top surface of the boss portion 204, corresponding to the protruding portion 1030 of the first insulating body 10, a recessed portion 2040 is provided to cooperate with it and to maintain the level between the first connector 1 and the second connector 2 direction retention. The portion of the second bottom wall 203 between the boss portion 204 and the second end wall 202 is formed with a convex beam 2030, and the convex beam 2030 is engaged with the opening portion 1020 of the first connector 10 to stabilize the first connector 10. The function of connecting the connector 10 and the second connector 20 .

The second conductive terminal 22 includes a second clamping portion 221 clamped in the second receiving channel 2010 , one end of the second clamping portion 221 extends to both sides with a second soldering portion 222 welded to the circuit board, And the abutting portion 223 that is bent in an “S” shape and abuts against the first conductive terminal, wherein the side of the clamping portion 221 facing the abutting portion 223 is provided with a barb that is buckled with the second receiving channel 2010 2210.

Please refer to FIG. 4 and FIG. 5 , during assembly, the first conductive terminal 11 and the second conductive terminal 22 are respectively accommodated in the first receiving channel 1010 and the second receiving channel 2010 , the first welding of the first conductive terminal 11 The portion 111 extends out of the first receiving channel 1010 to be welded with the circuit board, and the second welding portion 222 of the second conductive terminal 22 extends out of the second receiving channel 2010 to be welded with another circuit board. After connecting the first connector 1 and the second connector 2, the first insulating body 10 is completely accommodated in the second receiving space 200 of the second insulating body 20, wherein the first clamping portion 112 of the first conductive terminal 11 Butting against the abutting portion 223 of the second conductive terminal 22, the convex beam 2030 of the second insulating body 20 is clamped in the opening 1020 of the first insulating body 10, and the protruding portion 1030 of the first insulating body 10 is also Cooperate with the concave portion 2040 of the second insulating body 20 to maintain the horizontal holding force between the first connector 1 and the second connector 2 . The interference block 1012 of the first insulating body 10 interferes with the interference slot 2041 of the second insulating body 20 , so that the first connector 1 and the second connector 2 are stably held in the mating direction.

The above is only a preferred embodiment of the present utility model, and any improvement made on the premise of the concept of the present invention is within the scope of the present utility model, for example: the top surface of the boss portion of the second insulating body is provided with a convex out, and at the corresponding position of the first insulating body, a recessed part is provided to cooperate with it.

Claims (8)

1. An electrical connector, which includes a first connector and a second connector, the first connector is provided with a first insulating body and a first conductive terminal, and the first insulating body is provided with two opposite first The side wall, two opposite first end walls and a first bottom wall, a plurality of first receiving grooves are opened on the first side wall, the first conductive terminal is accommodated in the first receiving groove, the first side wall and the second The first receiving space is surrounded by one end wall, the second connector is provided with a second insulating body and a second conductive terminal, and the second insulating body is provided with two opposite second side walls, two opposite second Two end walls and a second bottom wall, a number of second storage channels are opened on the second side wall, and the second conductive terminals are accommodated in the second storage channels, and the second side wall and the second end wall are jointly formed to form a second receiving channel. Two storage spaces, the second bottom wall protrudes to the second storage space with a longitudinally arranged boss portion, which is characterized in that: on the first bottom wall of the first insulating body and the boss portion of the second insulating body, one is set There is a protruding part, and the corresponding position of the other one is provided with a recessed part. 2. The electrical connector as claimed in claim 1, wherein a transversely penetrating opening is formed on the first end wall of the first insulating body. 3 . The electrical connector according to claim 1 , wherein at least one interference block is provided on the inner surface of the first side wall of the first insulating body in the longitudinal direction. 4 . 4. The electrical connector according to claim 1, wherein a baffle portion is provided in the first receiving channel along the insertion direction of the first connector and the second connector. 5. The electrical connector according to claim 1, wherein the first conductive terminal is provided with a first clamping portion, and the outer surface of the first clamping portion protrudes to abut against the first receiving groove. the holding part. 6 . The electrical connector according to claim 1 , wherein a convex beam is provided on the bottom wall between the boss portion of the second insulating body and the second end wall. 6 . 7 . The electrical connector as claimed in claim 1 , wherein the upper surface of the second side wall is recessed downward with a hole and communicates with the corresponding second receiving channel. 7 . 8 . The electrical connector according to claim 1 , wherein interference grooves are provided at the longitudinal sides of the boss portion of the second insulating body at positions corresponding to the interference blocks of the first insulating body. 8 .

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