CN201498816U - Electrical connector - Google Patents

Abstract

An electrical connector, comprising an insulating body and a conductive terminal, the insulating body includes a bottom surface and a top surface opposite to the bottom surface, a mounting surface parallel to the top surface is provided between the top surface and the bottom surface, and the conductive terminal includes a base close to the top surface, And the side of the base away from the top surface is provided with an elastic contact portion extending to the bottom surface and a welding foot bent and extended. type.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to a low-height electric connector installed on a circuit board.

【Background technique】

Chinese Patent Announcement No. CN 200972947Y discloses a receptacle electrical connector welded on a circuit board. The electrical connector includes an insulating body provided with a terminal receiving groove and a plurality of conductive terminals accommodated in the terminal receiving groove of the insulating body. The insulating body is roughly square, and includes a main body and end parts extending from both ends of the main body to abut against the circuit board. The main body is provided with a plurality of terminal receiving slots for accommodating conductive terminals. The conductive terminal is provided with a substantially flat base, extending from the upper and lower ends of the base to provide an introduction portion and a holding portion, the introduction portion extends downward to provide a contact portion, and the holding portion extends downward to provide a substantially flat connection portion, The lower end of the connecting portion is extended with a mounting portion placed on the lower end of the insulating body, and the mounting portion is substantially perpendicular to the connecting portion. The bottom surface of the electrical connector is the installation surface installed on the circuit board, the installation part of the conductive terminal is located on the installation surface of the electrical connector, that is, the bottom surface of the electrical connector, and the contact part of the conductive terminal is located on the installation part. The main body of the insulating body of the electrical connector is located on the upper side of the circuit board, and the conductive terminals are also located on the circuit board. The height of the entire electrical connector is high, occupying a large space above the circuit board, and cannot adapt to the development trend of miniaturization.

Therefore, it is necessary to design an electrical connector to overcome the above-mentioned defects in the prior art.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a low-height electrical connector that reasonably utilizes the space of the circuit board.

In order to solve the above technical problems, a technical solution adopted is: an electrical connector, including an insulating body and conductive terminals, the insulating body includes a bottom surface, a top surface opposite to the bottom surface, and a mounting surface parallel to the top surface, and the conductive terminals It includes a base close to the top surface, and on the side of the base away from the top surface, there are elastic contact parts extending to the bottom surface and welding legs bent and extended. The mounting surface is located between the top surface and the bottom surface, and the end of the contact part is close to the insulating body. on the bottom surface, the solder feet are on the mounting surface.

In order to solve the above technical problems, another technical solution adopted is: an electrical connector, which includes an insulating body and a plurality of conductive terminals. The receiving hole, the conductive terminal includes a base fixed in the receiving hole, a contact portion extending from the base to the opposite surface, and a welding foot, the welding foot is biased toward the mating surface side than the end of the contact portion.

Compared with the prior art, the mounting surface of the insulating body of the electrical connector of the present invention is located between the top surface and the bottom surface of the insulating body, and the welding feet of the conductive terminals are located in the mounting surface. After the electrical connector is installed on the circuit board, the bottom surface It is located below the circuit board and the top surface is located above the circuit board, so that the space of the circuit board can be reasonably utilized and the height of the electrical connector is low.

Compared with the prior art, the welding feet of the conductive terminals of the electrical connector of the utility model are biased towards the butt joint surface side of the insulating body compared with the end of the contact part, the welding feet of the conductive terminals are welded on the surface of the circuit board, and the butt joint surface of the insulating body is opposite to the The surfaces are located on the upper side and the lower side of the circuit board respectively, and the insulating body part is located in the circuit board, so that the space of the circuit board can be reasonably used, and the height of the electrical connector is relatively low.

【Description of drawings】

Fig. 1 is a three-dimensional combination diagram of an electrical connector of the present invention connecting an optical transceiver and a circuit board;

Fig. 2 is a perspective view of the electrical connector of the present invention before being welded to the optical transceiver on the circuit board;

Fig. 3 is a perspective view of the electrical connector of the present invention before being assembled to a circuit board;

Fig. 4 is a three-dimensional exploded view of one of the electrical connectors of the present invention;

Fig. 5 is a three-dimensional exploded view of another angle of the electrical connector of Fig. 4;

Fig. 6 is a sectional view of the electrical connector of the present invention along line A-A in Fig. 2 .

【Detailed ways】

Please refer to Fig. 1 to Fig. 3, the electric connector 1,4 of the utility model is used for connecting optical transceiver 2 to circuit board 3, optical transceiver 2 comprises three rows of pin-like pins 21,22, two rows of pins arranged oppositely The pin numbers of the pins 21 are equal, and the third row of pins 22 is perpendicular to the other two rows of pins 21 . Corresponding to each row of pins 21 and 22, there are corresponding electrical connectors 1 and 4 connected. Two electrical connectors 1 are respectively connected to pins 21 with the same number of pins in two rows, and one electrical connector 4 is connected to the third The row of pins 22 and the three electrical connectors 1 and 4 are soldered to the circuit board 3 to achieve the electrical connection between the optical transceiver 2 and the circuit board 3 to realize signal conversion and transmission.

The three electrical connectors 1, 4 have the same structure and shape, and all include elongated rectangular insulating bodies 10, 40 and a plurality of conductive terminals 11, 41 integrally formed in the insulating bodies 10, 40, but the electrical connector 4 is electrically connected to The number of conductive terminals of device 1 is not equal. Two electrical connectors 1 can be designed and produced with one mold, and their positions on the circuit board 3 can be adjusted according to the positions of the pins 21 of the optical transceiver 2 . Since the electrical connectors 1 and 4 have the same structure, one of the electrical connectors 1 will be further described in detail below.

3 to 6, the insulating body 10 of the electrical connector 1 is provided with a top surface 101 (or called a docking surface) and a bottom surface 102 (or called an opposite surface) opposite to the top surface 101, and the electrical connector 1 is separated from the circuit board. 3 is installed from the bottom upwards, the insulating body 10 has a mounting surface 100 that is attached to the lower surface of the circuit board 3, the mounting surface 100 is located between the top surface 101 and the bottom surface 102 and is parallel to the top surface 101, and the mounting surface 100 and the top surface 101 are in the same direction , the distance from the installation surface 100 to the bottom surface 102 is smaller than the distance from the installation surface 100 to the top surface 101 , that is, the installation surface 100 is closer to the bottom surface 102 . The insulating body 10 includes an elongated body portion 103 and positioning posts 104 located at both ends of the body portion 103 . The main body portion 103 defines a row of receiving holes 1031 passing through the bottom surface 102 and the top surface 101 for receiving the conductive terminals 11 . The main body 103 is provided with a first side wall 1032 and a second side wall 1033 which are opposite in length and length, and the conductive terminals 11 arranged in a row include welding feet 111 protruding vertically outside the first side wall 1032, and outside the second side wall 1033. A boss 105 is protruded, and the boss 105 holds a plate fixing part 12 that can be welded to the circuit board 3. The plate fixing part 12 includes a welding plate part 121 extending vertically away from the second side wall 1033 for welding. The plate portion 121 is located in the installation surface 100 , and the boss 105 , the plate fixing member 12 and the soldering foot 111 of the conductive terminal 11 can maintain the overall balance of the electrical connector 1 . The positioning post 104 extends upward from the bottom surface 102 beyond the installation surface 100 , and is fixed in the positioning hole 31 provided at a corresponding position on the circuit board 3 .

The conductive terminals 11 of the electrical connector 1 are arranged in a row, and each conductive terminal 11 is arranged symmetrically as a whole, including a U-shaped base 110 fixed in the receiving hole 1031, the base 110 is close to the top surface 101 of the receiving hole 1031, and the base 110 is away from the top surface One side of the 101 is provided with an elastic contact portion 112 extending toward the bottom surface 102 and a welding leg 111 bent and extending perpendicular to the contact portion 112 . The contact portion 112 includes two clamping arms 1120 extending from the base portion 110 to the bottom surface 102 , and free ends of the contact portion 112 are close to the bottom surface 102 of the insulating housing 10 . The soldering leg 111 is located on the mounting surface 100, and the soldering leg 111 is located between the base portion 110 and the end of the contact portion 112, that is, the soldering leg 111 is biased toward the top surface 101 (that is, the butt surface) compared with the end of the contact portion 112, so that the radial direction of the conductive terminal 11 The length is small, so that the height of the electrical connector 1 can be reduced, and the upper surface of the welding pin 111 is welded to the circuit board 3 by surface adhesion.

After the electrical connector 1 is installed on the circuit board 3 from bottom to top, its top surface 101 is located above the circuit board 3, its bottom surface 102 is located below the circuit board 3, and the mounting surface 100 overlaps with the lower surface of the circuit board 3, that is, the electrical connector 1 Part of the insulating body 10 is located in the circuit board 3, so that the space of the circuit board 3 can be fully utilized.

In summary, the above are only preferred embodiments of the utility model, and should not limit the scope of the utility model, that is, any simple equivalent changes made according to the claims of the utility model and the content of the utility model description All should still belong to the scope that the utility model patent covers.

Claims (10)

1. An electrical connector, comprising an insulating body and a conductive terminal, the insulating body includes a bottom surface, a top surface opposite to the bottom surface, and a mounting surface parallel to the top surface, the conductive terminal includes a base close to the top surface, and the base is away from the top surface One side of one side is provided with an elastic contact part extending to the bottom surface and a welding leg bent and extended, and the feature is that: the installation surface is located between the top surface and the bottom surface, and the end of the contact part is close to the bottom surface of the insulating body. The solder feet are located on the mounting surface. 2. The electrical connector according to claim 1, wherein the distance between the installation surface and the bottom surface is smaller than the distance between the installation surface and the top surface, and the installation surface and the top surface are in the same direction. 3 . The electrical connector as claimed in claim 1 , wherein the insulating body comprises an elongated main body, and the main body is provided with a receiving hole passing through the bottom surface and the top surface for receiving the conductive terminals. 4 . 4 . The electrical connector as claimed in claim 3 , wherein positioning posts are provided at both longitudinal ends of the main body, and the positioning posts extend upward from the bottom surface beyond the installation surface. 5 . 5. The electrical connector according to claim 3, wherein the base of the conductive terminal is U-shaped and close to the top surface of the receiving hole, the contact portion includes two clamping arms and extends from the base to the bottom surface, the conductive terminal Overall symmetrical setup. 6. The electrical connector as claimed in claim 5, wherein the conductive terminals are integrally formed in the insulating body. 7. The electrical connector according to claim 3, wherein the main body is provided with a first side wall and a second side wall opposite to each other in length, and the soldering feet of the conductive terminals protrude vertically from the first side wall In addition, the second side wall is protruded with a boss, and a fixing plate is fixed on the boss, and the fixing plate includes a welding plate portion extending vertically away from the second side wall, and the welding plate portion is also located in the installation surface. 8. An electrical connector, which includes an insulating body and a plurality of conductive terminals, the insulating body is provided with a docking surface, an opposite surface opposite to the docking surface, and a receiving hole penetrating through the docking surface, and the conductive terminal includes a base fixed in the receiving hole, a self-contained The contact portion and the welding foot extending from the base to the opposite surface are characterized in that the welding foot is biased toward the butt surface side than the end of the contact portion. 9. The electrical connector as claimed in claim 8, wherein the soldering leg extends from the base portion and is perpendicular to the contact portion. 10 . The electrical connector according to claim 9 , wherein two ends of the insulating body are provided with positioning posts extending toward the mating surface. 11 .

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