CN201323354Y - Electric connector - Google Patents

Abstract

An electrical connector for docking with a docking connector, which includes an insulating body and terminals held on the insulating body, the insulating body includes a base and a docking portion extending forward from the base, the docking portion is concavely provided with a docking cavity, The insulating body is also provided with a mounting surface, and the terminal includes at least a first terminal (2), and the first terminal includes a first holding portion (21), a first elastic spring extending from one end of the first holding portion and protruding into the docking cavity. An arm (22) and a welding part (23) extending from the other end of the first holding part and parallel to the mounting surface, the welding part includes a first welding part (231) and a second welding part set at an angle to the first welding part Department (232). The arrangement of the first welding part and the second welding part can effectively reduce the manufacturing cost.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector docked with a matched butt connector.

【Background technique】

Chinese Utility Model Patent No. 03262249.X discloses an electrical connector. The electrical connector includes an insulating body and a terminal group held on the insulating body. The terminal group includes a number of elastic terminals accommodated in the insulating body. Each elastic terminal includes The holding part, the elastic arm bent inward from the top of the holding part and the welding leg bent outward from the bottom of the holding part, the elastic arm is provided with an elastic contact part bent forward, and the welding leg extends out The side of the insulation body is welded on the circuit board.

However, the welding portion of the terminal in this type of electrical connector extends beyond the side of the insulating body, that is, exceeds the size of the bottom surface of the insulating body. When the electrical connector is soldered to the circuit board, the soldering feet will occupy a large space on the circuit board, which is not conducive to the miniaturization of electronic products. Therefore, it is necessary to design a new type of electrical connector.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, which can effectively reduce the manufacturing cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electrical connector, which includes an insulating body and terminals held on the insulating body, the insulating body is provided with a base and a docking portion extending forward from the base, and the docking portion is concavely arranged There is a docking cavity, and the insulating body is also provided with a mounting surface; the terminal includes at least a first terminal, and the first terminal includes a first holding part, a first elastic arm extending from one end of the first holding part and protruding into the docking cavity, and a first elastic arm extending from the second holding part. The other end of the holding portion extends and is a welding portion parallel to the installation surface, the welding portion includes a first welding portion and a second welding portion arranged at an angle to the first welding portion.

Compared with the prior art, the electrical connector of the utility model has the following beneficial effects: at least the second welding part of the first terminal is formed by bending the elastic sheet punched out from the first holding part or the first welding part, which can effectively reduce the manufacturing cost. cost.

The utility model is further described below in conjunction with drawings and embodiments.

【Description of drawings】

Fig. 1 is a perspective view of the electrical connector of the present invention.

Fig. 2 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 3 is a perspective view of the first terminal of the electrical connector of the present invention.

【Detailed ways】

Please refer to FIG. 1 and FIG. 2 , the electrical connector 100 of the present invention mainly includes an insulating body 1 and terminals held on the insulating body 1 .

The insulating body 1 includes a rectangular base 11 and a cylindrical butt joint 12 extending forward from the base 11 . The base 11 includes a front end surface 111, a rear end surface opposite to the front end surface 111, a top wall, a bottom wall 114 opposite to the top wall, and two opposite side walls 115 connecting the top wall and the bottom wall 114, wherein the bottom surface of the bottom wall 114 A mounting surface is formed, and the docking portion 12 extends forward from the front end surface 111 . The docking portion 12 is recessed with a cylindrical docking cavity 121 , the docking cavity 121 penetrates the base 11 from front to back, and a docking connector (not shown) is inserted into the docking cavity 121 from front to back.

The base 11 defines a first receiving groove 13 penetrating through the bottom wall 114 from the bottom surface of the side wall 115 to the top wall. The first receiving groove 13 is located on one side of the docking cavity 121 and communicates with the docking cavity 121 . The first receiving groove 13 includes a fixing groove 131 located on the side wall 115 and an accommodating groove 132 extending from the fixing groove 131 toward the docking cavity 121. The receiving groove 132 communicates with the docking cavity 121, and the side wall of the fixing groove 131 extends downward. There are protrusions 133 . The insulating body 1 is also provided with a second receiving groove 14, which is located on the same side of the docking cavity 121 as the first receiving groove 13, and the second receiving groove 14 is recessed from the rear end of the insulating body 1 to the front. It penetrates through the bottom wall 114 of the insulating housing 1 . The bottom wall 114 is recessed on the top wall to form an L-shaped third receiving groove 15 . The third receiving groove 15 has first and second slots 151 , 152 penetrating through the bottom wall 114 respectively on both sides. The first slot 151 is located on the same side of the docking cavity 121 as the first receiving groove 13 , and is located between the first receiving groove 13 and the second receiving groove 14 . The front end of the third receiving groove 15 communicates with the docking cavity 121 , and a cutout 153 is formed on the docking cavity 121 . The insulating body 1 is recessed with a fourth receiving groove 17 from the front end of the other side wall of the base 11 to the top wall. The insulating body 1 is recessed from the middle part of the base 11 to have a fifth receiving groove 18. The fifth receiving groove 18 and the fourth receiving groove 17 are located on the same side of the docking cavity 121, and both communicate with the docking cavity 121. The fifth receiving groove 18 is located at the rear of the fourth storage tank 17. The second slot 152 is located on the same side of the docking cavity 121 as the fifth receiving groove 18 , and is located behind the fifth receiving groove 18 .

The terminals include a first terminal 2 , a second terminal 3 , a third terminal 4 , a fourth terminal 5 and a fifth terminal 6 .

Please refer to FIG. 3 , the first terminal 2 includes a flat first holding portion 21 , a first elastic arm 22 extending from one end of the first holding portion 21 opposite to the first holding portion 21 , and a welding portion 23 . The end of the first elastic arm 22 forms a first contact portion 221 extending into the docking cavity 121 . The welding part 23 includes a first welding part 231 formed by bending outwards from the free end of the first holding part 21 and a second welding part 232 extending inward from a side edge of the first welding part 231. The second welding part 232 The elastic piece stamped from the first holding portion 21 is bent and then extended in the opposite direction to the first welding portion 231 , and an opening 230 corresponding to the elastic piece is formed on the first holding portion 21 . The second welding portion 232 is connected to the side edge of the first welding portion 231 located in the opening. In this embodiment, the first welding portion 231 and the second welding portion 232 extend oppositely, and of course they can also be arranged at other angles. The second welding portion 232 can also be formed by punching and bending from the first welding portion 231 . In this embodiment, the docking connector is inserted into the docking cavity 121 backward from the front end surface 111 of the insulating body 1 , the first welding portion 231 extends along the insertion direction, and the second welding portion 232 extends along the insertion direction perpendicular to the docking connector. The bottom surface of the first welding portion 231 forms a first welding surface 233 , and the bottom surface of the second welding portion 232 forms a second welding surface 234 . The first and second welding surfaces 233 , 234 are located on the same plane and are T-shaped.

In this embodiment, the structure of the fourth terminal 5 and the fifth terminal 6 is the same as that of the first terminal 2 , which will not be repeated here.

Please refer to FIG. 2 , the second terminal 3 includes a second holding portion 31 in the form of a vertically long flat plate, a second elastic arm 32 extending backward from the front end of the second holding portion 31 and a second elastic arm 32 extending from the second holding portion 31 . The third welding portion 33 whose side edge extends in the horizontal direction. The second elastic arm 32 and the third welding portion 33 are located on the same side of the second holding portion 31 . A supporting portion 34 extending toward the second elastic arm 32 is disposed in the middle of the second holding portion 31 , and the supporting portion 34 is formed by an elastic piece punched from the second holding portion 31 . A second contact portion 321 protruding into the docking cavity 121 is formed at the end of the second elastic arm 32 .

The third terminal 4 includes a substantially rectangular main body 41 , first and second buckle parts 411 , 412 vertically extending upward from both sides of the main body 41 , and a fourth buckle extending from the rear side edge of the main body 41 . Welding part 413 . The fourth welding portion 413 is located on the same side of the main body 41 as the first locking portion 411 . A side edge of the front portion of the main body 41 is bent to form a third contact portion 414 extending into the docking cavity 121 .

When assembling, first install the first terminal 2 from the bottom wall 114 of the insulating body 1 into the first receiving groove 13, so that the first holding portion 21 is held in the fixing groove 131, and the first elastic arm 22 is accommodated in the receiving groove 132. The first contact portion 221 protrudes from the docking cavity 121 of the insulating body 1 , the first welding portion 231 abuts against the protruding portion 133 and does not exceed the mounting surface of the insulating body 1 , and the second welding portion 232 is located below the insulating body 1 . The assembly of the fourth terminal 5 and the fifth terminal 6 is the same as that of the first terminal 2 . Then install the second terminal 3 into the second receiving groove 14 from the rear end surface, the second contact portion 321 protrudes into the docking cavity 121 , and the third welding portion 33 does not exceed the mounting surface of the insulating body 1 . Finally, assemble the third terminal 4 from the bottom surface of the insulating body into the third receiving groove 15, and make the first and second buckle parts 411, 412 correspond to the first and second slots 151, 152 respectively so that The third terminal 4 is fixed on the bottom of the insulating body 1 , the third elastic contact portion 414 extends through the cutout 153 into the docking cavity 121 , and the fourth welding portion 413 does not exceed the mounting surface of the insulating body 1 . In this way, the assembly of the electrical connector 100 is completed.

The terminal welding parts of the electrical connector 100 of the utility model are all located below the insulating body and do not exceed the mounting surface of the insulating body, that is, they do not exceed the side wall of the insulating body, which can reduce the occupied area of the electrical connector on the circuit board, which is beneficial Miniaturization of electronic products. And at least the second welding portion 231 of the first terminal 2 is formed by bending the elastic piece punched out from the first holding portion 21 or the first welding portion 231 , which can effectively reduce the manufacturing cost.

The above-mentioned implementations are preferred implementations of the electrical connector of the present invention. Of course, the electrical connector of the present invention can also adopt other implementation modes, which will not be repeated here.

Claims (10)

1. electric connector, the terminal that it comprises insulating body and is immobilizated in insulating body, described insulating body comprises that base portion reaches the docking section from base portion extends forward, be concaved with the butt joint chamber in the docking section, insulating body also is provided with an installed surface, described terminal comprises the first terminal at least, this the first terminal comprises first holding parts, extend and protrude into first elastic arm in butt joint chamber and extend and the weld part parallel from first holding parts, one end, it is characterized in that with installed surface from the first holding parts other end: described weld part comprise first weld part and with second weld part of the angled setting of first weld part.

2. electric connector as claimed in claim 1 is characterized in that: described insulating body is provided with sidewall, and first and second welding position does not protrude out the sidewall of insulating body in installed surface.

3. electric connector as claimed in claim 2, it is characterized in that: described electric connector is in order to dock with butt connector, described electric connector is provided with a front end face, butt connector inserts the butt joint chamber backward from this front end face, described first weld part is to extend along this direction of insertion, and second weld part is to extend along the direction of insertion of vertical butt joint connector.

4. as claim 1 or 2 or 3 described electric connectors, it is characterized in that: described first weld part is outwards to be bent to form from first holding parts, and second weld part then extends internally from the medial margin of first weld part.

5. electric connector as claimed in claim 4 is characterized in that: described second weld part is to be bent to form by the shell fragment that forms from the first holding parts punching press, and second weld part and first welding position are in same plane.

6. electric connector as claimed in claim 5, it is characterized in that: described insulating body is concaved with first accepting groove in installed surface, this first accepting groove comprises holddown groove, this holddown groove be provided with a sidewall, this sidewall convexes with protuberance, and first holding parts is fixed in this holddown groove and first weld part is resisted against this protuberance.

7. electric connector as claimed in claim 1, it is characterized in that: described terminal comprises second terminal, this second terminal comprises second holding parts, extends into second elastic arm in butt joint chamber and the 3rd weld part that extends to form from second holding parts from the bending of the second holding parts front end, and the 3rd welding position is in installed surface.

8. the electric connector described in claim 7 is characterized in that: described second holding parts middle part is provided with the support portion of extending towards second elastic arm, and this support portion is to be formed by the shell fragment that punching press on second holding parts forms.

9. the electric connector described in claim 1, it is characterized in that: described terminal comprises the 3rd terminal, the 3rd terminal comprises the 3rd contact site and the 4th weld part, the 3rd terminal is fixed in the installed surface of insulating body, the 3rd contact site protrudes into the butt joint chamber, and the 4th welding position is in installed surface.

10. the electric connector described in claim 9, it is characterized in that: described the 3rd terminal comprises main part, the 3rd contact site is that autonomous body front edge extends to form, described installed surface is concaved with the 3rd accepting groove, the 3rd accepting groove front end is communicated with the butt joint chamber and forms otch on the docking section, the 3rd terminal is fixed in the 3rd accepting groove, and the 3rd contact site passes incision extension and goes into to dock the chamber.

Images