CN1303145A - Socket connector - Google Patents

Abstract

A socket connector, comprising an insulating body and a plurality of conductive terminals, wherein at least one insertion hole is provided on the insulating body to accommodate the conductive terminals, and the conductive terminals include first and second terminals respectively arranged on the left and right sides of the hole and located on the left and right sides of the hole. The third terminal on the rear end side of the hole, each terminal is provided with an elastic contact arm protruding toward the central axis of the hole, and a pin extending out of the insulating body to connect with the circuit board. The pins of the terminal are respectively provided with first and second joint surfaces symmetrically arranged along the central axis of the extension direction of the terminal pins. Therefore, the first and second terminals can be selectively joined to the same circuit board through two joint surfaces with opposite orientations, and the assembly and joint positions between the two terminals can be adjusted and transposed with each other.

Description

socket connector

The present invention relates to a socket connector, in particular to a socket connector with conductive terminals that can selectively engage with the same circuit board through two joint surfaces with opposite orientations.

In recent years, with the rapid development of various miniature electronic appliances such as mobile phones and notebook computers, the application of socket connectors on these movable miniature electronic devices is increasing. For related designs, please refer to US Patent Nos. 4,937,404, 5,092,795, Cases 5,782,646 and 5,812,660 etc. Please refer to FIG. 6, the existing socket connector mainly includes an insulating housing 100, which is usually provided with a cylindrical docking part 101 with a hollow hole, and the hollow hole part forms a socket hole 102 for plug insertion. The two conductive terminals 200, 300 and 400 are respectively arranged on the rear end and the left and right sides of the receptacle connector, and are respectively provided with contact parts 201, 301 and 401 with appropriate elasticity, and these contact parts protrude into the insertion hole The ring 102 is electrically connected to the plug, and each has pins 202, 302 and 402 extending out of the insulating shell, and can be soldered to corresponding circuit pads on the circuit board by surface bonding technology. In addition, the existing socket connectors are generally provided with a terminal 500 specially used for grounding, which also has a contact portion 501 protruding into the insertion hole 102 and a pin 502 extending outside the insulating housing 100, so as to eliminate Static charges and electromagnetic interference.

However, in the aforementioned existing structure, the positional relationship of the pins 302, 402 of the conductive terminals 300, 400 respectively assembled on the left and right sides of the socket connector relative to the overall conductive terminals determines that these conductive terminals 300, 400 are connected in the socket. The assembly position on the connector is unique and fixed, that is, the terminal 300 must be assembled on the left side of the receptacle connector, and the terminal 400 must be assembled on the right side, and the two cannot be adjusted and transposed with each other. The one-sidedness of the soldering orientation of the conductive terminals makes the conductive terminals non-common. If there is a need to adjust and exchange the positions of the terminals under certain conditions, these existing designs obviously cannot meet the predetermined requirements.

The object of the present invention is to provide a socket connector and its terminals with strong applicability and wide application range.

The purpose of the present invention is achieved through the following technical solutions: the socket connector of the present invention includes an insulating body and several conductive terminals and other structures, and the conductive terminals are arranged inside the insertion hole of the insulating body, which includes a The first and second terminals on the left and right sides and the third terminal on the rear end side of the insertion hole each have a terminal protruding toward the central axis of the insertion hole and have appropriate elasticity to maintain good resistance to the plug. The contact arms for the connection, and the pins that extend out of the insulating body for soldering to the circuit board. Wherein, the pins of the first and second terminals respectively include a first joint surface and a second joint surface, and the first and second joint surfaces are arranged symmetrically along the central axis of the extension direction of the terminal pins. In this way, corresponding to the first and second joint surfaces of the pins, the first and second terminals have two different joint orientations to be jointed on the same circuit board, so that the assembly and joint positions of the first and second terminals can be mutually connected. Adjust the transposition to improve the applicability of these terminals.

According to the above features, wherein the pins of these terminals extend to the middle position of the rear surface of the insulating body, and the joint surface of each terminal pin for joining with the circuit board is on the same horizontal plane, so that the socket connector can be "sinkable". "Board type" bonding method is connected to the circuit board.

Compared with the prior art, the advantage of the present invention is that: the conductive terminals of the socket connector of the present invention can be selectively joined with the same circuit board by two kinds of joint surfaces with opposite orientations, so that the conductive terminals can be adjusted and exchanged as required The position does not affect the joint between it and the circuit board, so as to increase the applicability of the socket connector, and at the same time, it can improve the flexibility of the conductive terminal assembly, joint and use in different electronic devices.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is an exploded perspective view of partial components of the present invention.

FIG. 2 and FIG. 3 are perspective views respectively showing two different orientations of the conductive terminals of the present invention joined to the circuit board.

FIG. 4 is a top view and a partial cross-sectional view of the present invention bonded to a circuit board.

FIG. 5 is a side view and a partial cross-sectional view of the present invention bonded to a circuit board.

Fig. 6 is an exploded perspective view of a conventional socket connector.

Referring to FIGS. 1 to 4 , the socket connector of the present invention includes an insulating body 1 , a first terminal 2 , a second terminal 3 and a third terminal 4 . Wherein, the insulating body 1 is a square body, one side of which is set as a front surface 11, and the opposite side is set as a rear surface 12, and the two sides of the front surface 11 are respectively provided with insertion holes 13, and the insertion holes 13 are Extending toward the interior of the insulating body 1 and penetrating to the rear surface 12 thereof, a plug (not shown) can be inserted thereinto. Also, between the two insertion holes 13, several groove-shaped signal terminal slots 16 are provided along the front surface 11 and the upper surface 14, and each slot 16 is correspondingly accommodated with a signal terminal 17 for Transmission of telecommunications or electricity. A positioning hole 15 is respectively provided between these slots 16 and the insertion holes 13 on both sides thereof, into which a positioning post (not shown) of the plug can be inserted for stable assembly. In addition, soldering tabs 19 are assembled on the side surfaces 18 at both ends of the insulating body 1 , so that the socket connector can be soldered and positioned on the circuit board 5 (see FIGS. 4 and 5 ).

Still referring to Fig. 1 to Fig. 4, the first, second and third terminals 2, 3 and 4 are set on the left and right sides of the inner wall of the insertion hole 13 of the insulating body 1 and the rear end side near the rear surface 12, wherein the first A terminal 2 has a rectangular base portion 21, elastic contact arms 23 and pins 25 are respectively extended from both ends of the base portion 21 in the direction away from the base portion 21, and the ends of the elastic contact arms 23 are properly bent to form A contact portion 24 protrudes toward the central axis of the insertion hole 13 . The second terminal 3 is also provided with a rectangular base portion 31. An extension piece 36 and a pin 35 are respectively extended from both ends of the base portion 31 along the longitudinal direction in a direction away from the base portion 31, and punched out on the extension piece 36. An elastic contact arm 33 extends toward the base portion 31 and its end is properly bent to protrude toward the central axis of the insertion hole 13 to form a contact portion 34 . In addition, the other two sides of the first and second terminals 2 , 3 are bent and provided with interference pieces 22 , 32 for stably positioning these terminals in the insertion hole 13 . As for the third terminal 4, it is provided with a base portion 41, and from the left and right sides of the base portion 41, elastic contact arms 43 bent to be approximately perpendicular to the base portion 41 are respectively extended, and a contact portion is also formed at the end of each elastic contact arm 43 44. From the upper and lower sides of the base 41 , there are respectively reversely bent pins 45 and interference pieces 42 to be fixedly engaged with the circuit board 5 and the insulating housing 1 (refer to FIG. 5 ).

The pins 25, 35 of the above-mentioned first and second terminals 2, 3 have the same structure, which is slightly horizontally A-shaped, and each pin includes a first joint surface 251, 351 which is bifurcated and arranged in parallel. And the second joint surface 252, 352, and a rib 253, 353 is arranged between the two joint surfaces to enhance the strength of these joint surfaces.

Please refer to FIG. 2 and FIG. 3 , by the structure of the aforementioned pins 25, 35, the first and second terminals 2, 3 (only the first terminal 2 is shown in the figure) can be selectively used in two opposite joint surfaces 251 or 252 (351 or 352) is engaged with the circuit board 5: when the first terminal 2 is engaged with the circuit board 5 by the first joint surface 251 of its pin 25, its protruding contact portion 24 faces as shown in FIG. and when it is engaged with the circuit board 5 by the second joint surface 252 , the protruding contact portion 24 faces the left direction as shown in FIG. 3 . Therefore, the first and second terminals 2 and 3 can be adjusted and transposed with each other as required, thereby improving the flexibility of assembling and joining of the socket connector, and enhancing its performance.

4 and 5, the pins 25, 35 and 45 of each terminal extend to the central part of the rear surface 12 of the insulating body 1, and the joint surface of these pins for bonding with the circuit board 5 is located coplanar on the same level. When the receptacle connector is assembled, a notch (not shown) corresponding to the outline of the receptacle connector is provided on the circuit board 5 earlier, because the joint surface of each terminal pin is located in the middle of the rear surface 12 of the receptacle connector, so that The receptacle connector can be joined with the circuit board 5 in a "sinking plate" assembly mode, that is, the circuit board 5 is roughly located in the middle of the rear surface 12 of the receptacle connector after assembly, thereby effectively reducing the contact between the receptacle connector and the circuit board 5. The height on the surface of the same side is beneficial to realize the thinning and miniaturization of electronic products.

Claims (10)

1. A socket connector, which can be assembled on a motherboard to provide signal plug insertion, includes an insulating body and a plurality of conductive terminals, and the conductive terminals include first ones respectively arranged on both sides of the inner wall of the socket hole of the insulating body. , the second terminal and the third terminal arranged on the rear end side of the insertion hole, each terminal is provided with a contact arm protruding toward the central axis of the insertion hole and having proper elasticity to keep in good contact with the plug, And the pin extending out of the insulating body to be welded to the circuit board; it is characterized in that: the pins of the first and second terminals both include a first joint surface and a second joint surface, and each joint surface can be welded to the circuit board Moreover, the first and second joint surfaces are arranged symmetrically along the central axis of the extending direction of the terminal pins. 2. The receptacle connector according to claim 1, wherein the pins are approximately in a horizontal A-shape, and the first and second joint surfaces are arranged parallel to each other after the pins are bifurcated. 3. The receptacle connector according to claim 2, wherein a rib is provided between the first and second joint surfaces near the extending end thereof to strengthen the strength of the first and second joint surfaces. 4. The receptacle connector according to claim 1 or 3, characterized in that: an insertion hole is provided on both sides of the insulating body, and a socket is provided along the surface of the insulating body between the two insertion holes and at the outer position. There are several signal terminal grooves, and each groove is embedded with a signal terminal. 5. The receptacle connector according to claim 4, wherein a positioning hole for cooperating with a positioning post of the plug is provided on each side of the insertion hole on the front surface. 6. The receptacle connector according to claim 5, wherein the pins on each of the terminals for engaging with the circuit board extend to the central position of the rear surface of the insulating body relative to the front surface, and The bonding surfaces of the pins of the first terminals are all located in the same horizontal plane. 7. The receptacle connector according to claim 6, characterized in that: on the side surfaces of both ends of the insulating body, there are soldering pieces parallel to the circuit board and capable of being soldered thereon. 8. A conductive terminal is assembled on the insulating body of the electrical connector to join the circuit board and electrically contact with the terminal of the docking connector to transmit telecommunication. It has a base, and an elastic contact arm of appropriate length extends from one end of the base, The opposite end side is extended with pins for joining with the circuit board, which is characterized in that: the pins include a first joint surface and a second joint surface, each joint surface can be welded with the circuit board and the The first and second joint surfaces are arranged symmetrically along the central axis of the extending direction of the terminal pins. 9. The conductive terminal according to claim 8, wherein the pins are in a slightly horizontal A-shape, and the first and second joint surfaces are arranged parallel to each other after the pins are bifurcated. 10. The conductive terminal according to claim 9, wherein a rib is provided between the first and second joint surfaces near the extension end thereof to strengthen the strength of the first and second joint surfaces.

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