CN201303056Y - Electrical connector - Google Patents

Abstract

The utility model discloses an electrical connector (100). The electrical connector comprises an insulating body (1) and a terminal (2) held on the insulating body. The insulating body is provided with a docking surface (11) and a The insulating body is provided with a terminal accommodating groove (111) and a fixing groove (113, 114) penetrating through the mating surface and the mounting surface, and the terminal includes a holding part (21) fixed to the fixing groove. , 221), the contact portion (22) on the butt surface and the welding portion (232) parallel to the mounting surface, the welding portion extends an extension with an arc-shaped bending portion (241) along the direction away from the butt surface (24), the bending portion smoothly moves along the inner wall of the terminal receiving groove when the terminal is assembled into the terminal receiving groove, thereby preventing deformation of the welding portion of the terminal.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector in which the welding part of a terminal is extended with an extension part.

【Background technique】

At present, there is an electrical connector used in electronic devices such as mobile phones or handheld devices. The electrical connector includes an insulating body and terminals held on the insulating body. The terminal receiving groove runs through its rear end face. The terminal includes a holding portion, a contact portion vertically extending upward from the front end of the holding portion, and a welding portion bent downward from the rear end of the holding portion. The plane of the welding portion is located below the plane of the holding portion. The terminal is assembled into the terminal receiving groove from the front surface of the insulating body. Since the soldering part of the terminal and the holding part are not on the same plane, when assembling the terminal into the terminal receiving groove, the welding part must be tilted upwards first, so that the holding part is pre-installed in the holding groove at the bottom of the terminal receiving groove, and then the terminal is squeezed The terminal is accommodated and held in the terminal receiving groove.

However, since the soldering part is inserted into the terminal receiving groove with an upward inclination, the end of the soldering part will contact the top wall of the terminal receiving groove, and in the process of pressing the terminal into the terminal receiving groove, the end of the soldering part will interfere with the top wall so that The difficulty of assembly is increased, and when the interference force is large, the top wall of the terminal receiving groove may press the end of the welding part, thereby causing deformation of the welding part, resulting in poor welding of the terminal.

Therefore, it is desirable to design a new type of electrical connector to prevent deformation of the welding portion of the terminal.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, which can prevent the welding part of the terminal from being deformed when the terminal is assembled into the insulating body.

In order to achieve the above object, the card edge connector of the present utility model adopts the following technical scheme: an electrical connector, which includes an insulating body and a terminal held on the insulating body, the insulating body is provided with a docking surface and is connected to the docking surface. Adjacent to the mounting surface, the insulating body is provided with a terminal receiving groove penetrating the mating surface and the mounting surface and a fixing groove penetrating the mating surface. The welding portion extends away from the mating surface with an extension portion having an arc-shaped bending portion, and the bending portion moves smoothly along the inner wall of the terminal receiving groove when the terminal is assembled into the terminal receiving groove.

Compared with the prior art, the utility model has the following beneficial effects: the extension part can move along the inner wall of the terminal receiving groove when the terminal is assembled into the insulating body, thereby preventing the welding part of the terminal from being deformed.

【Description of drawings】

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

Fig. 2 is a perspective view from another angle of the electrical connector of the present invention.

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

Fig. 4 is an exploded view from another angle shown in Fig. 3 .

Figure 5 and Figure 6 are cross-sectional views along the line A-A shown in Figure 1, wherein Figure 5 shows the state of the terminal during assembly, and Figure 6 shows the state of the terminal assembled in the insulating body.

【Detailed ways】

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

Please refer to Fig. 3, shown in 4, insulating housing 1 is roughly rectangular, and it comprises front end face 11, rear end face 12 that is arranged opposite to front end face 11, top wall 13, bottom wall 14 that is arranged opposite top wall 13 and connects the Two opposite sidewalls of the top wall 13 and the bottom wall 14 , the front end surface 11 forms an abutment surface, and the bottom surface of the bottom wall 14 forms a mounting surface. The insulating body 1 is concavely provided with two side-by-side terminal receiving grooves 111 on the front end surface 11 toward the rear end surface 12, each terminal receiving groove 111 runs through the rear end surface 12 and the mounting surface, and the terminal receiving groove 111 forms a top surface inside it. 112, the terminal receiving groove 111 forms an opening on the front end surface 11, and the bottom of the terminal receiving groove 111 continues to extend to both sides at the opening to form a first fixing groove 113, and the width of the first fixing groove 113 is wider than the terminal receiving groove 111 wide. The insulating body 1 also has two second fixing grooves 114 recessed backward on the front end surface 11 , and the two second fixing grooves 114 are arranged side by side and located above the corresponding terminal receiving grooves 111 respectively.

3, 4, and 5, the terminal 2 includes a first holding portion 21 arranged horizontally, a contact portion 22 extending vertically upward from the front end of the first holding portion 21, and a soldering portion extending from the rear end of the first holding portion 21. The leg 23 and the extension portion 24 extending obliquely upward from the rear end of the welding leg 23 , the extension portion 24 extends away from the mating surface. Wherein the contact portion 22 is planar, and the contact portion 22 is bent and extended from the upper side edge to form a second holding portion 221, the second holding portion 221 is arranged relatively parallel to the first holding portion 21 and is located above the first holding portion 21, The second holding portion 221 is located on the same side of the contact portion 22 as the first holding portion 21 . The welding foot 23 is formed by extending from the rear end of the first holding portion 21. The welding foot 23 includes an inclined portion 231 extending obliquely downward and backward and a welding portion 232 extending horizontally from the rear end of the inclined portion 231. The inclined portion 231 is connected to the first The holding part 21 and the welding part 232 are arranged parallel to the first holding part 21 and the installation surface. The plane where the welding part 232 is located is below the plane where the first holding part 21 is located. The extension part 24 is formed by obliquely extending upward from the end of the welding part 232. The extension part 24 includes an arc-shaped bending part 241 and a connecting part 242 smoothly connecting the bending part 241 and the rear end of the welding part 232. The connecting part 242 is straight The bending portion 241 is arched upwards to form an arc-shaped contact surface 243 , and the bending portion 241 and the welding portion 232 are located on the same side of the connecting portion 242 .

Please continue to refer to FIGS. 5 and 6. When the terminal 2 is assembled in the terminal receiving groove 111, firstly, the welding leg 23 and the extension part 24 of the terminal 2 are inclined upward from the front end surface 11 of the insulating body 1 and extended into the terminal receiving groove 111, so that the first The first holding portion 21 and the second holding portion 221 are respectively located at the openings of the first fixing groove 113 and the second fixing groove 114 . Then squeeze the terminal 2 so that the first holding part 21 is accommodated in the first fixing groove 113, and the terminal 2 is fixed to the insulating body 1 by interfering with the first fixing groove 113 by means of the thorns provided on the first holding part 21, and at the same time The second holding portion 221 is correspondingly accommodated in the second fixing groove 114, and the protrusions provided on the second fixing portion 221 interfere with the second fixing groove 114 so that the contact portion 22 is stably fixed on the front end surface 11 of the insulating body 1, Further, the reliability of the contact portion 22 is ensured, and the contact surface 243 of the bent portion 241 moves smoothly along the top surface 112 of the terminal receiving groove 111. Since the contact surface 243 is arc-shaped, the bending portion 241 can be reduced during the assembly process. Interference with the insulating body 1; when the terminal 2 is fixed on the insulating body 1, the extension part 24 extends out of the terminal receiving groove 111 and is located behind the rear end surface 12 of the insulating body 1, and the contact part 22 protrudes from the front end surface of the insulating body 1 11.

The extension part 24 formed by the oblique upward extension of the rear end of the welding part 232 can contact with the top surface 112 of the receiving groove 111 and move smoothly along the top surface 112 of the terminal receiving groove 111 when the terminal 2 is assembled into the insulator body 1, thereby avoiding The welding portion 232 is in direct contact with the inner wall of the terminal receiving groove 111, and even when the extension portion 24 is pressed by the inner wall of the terminal receiving groove 111, only the extension portion 24 will be deformed, thereby avoiding that the existing electrical connector is not connected to the terminal. When assembling into the insulating body, the welding portion 232 directly interferes with the terminal receiving groove 111 to cause deformation of the welding portion 232 , which can effectively ensure the reliability of the welding of the terminal 2 .

In other embodiments, the extension part 24 may not include the connecting part 242 of the straight line segment, but is directly set as a larger arc segment extending from the rear end of the welding part 232 to assemble the terminal 2 into the insulating body 1 When moving smoothly along the top surface 112 of the terminal receiving groove 111 , the purpose of preventing deformation of the welding portion 232 can also be achieved.

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

Claims (10)

1. An electrical connector, which includes an insulating body and a terminal held on the insulating body, the insulating body is provided with a butt joint surface and a mounting surface adjacent to the butt joint surface, and the insulating body is provided with a hole that penetrates the butt joint surface and the mounting surface The terminal receiving groove and the fixing groove penetrating through the mating surface, the terminal includes a holding part fixed in the fixing groove, a contact part located on the mating surface and a welding part parallel to the mounting surface, characterized in that the welding part is far away from the mating surface An extension portion with an arc-shaped bent portion is extended in the direction of the terminal, and the bent portion moves smoothly along the inner wall of the terminal receiving groove when the terminal assembly is inserted into the terminal receiving groove. 2. The electrical connector according to claim 1, wherein the terminal receiving groove is provided with a top wall, and the bent portion is arched toward the top wall to form an arc-shaped contact surface, and the contact surface is assembled on the terminal Move smoothly along the top wall of the terminal accommodating groove when entering the terminal accommodating groove. 3. The electrical connector as claimed in claim 2, wherein the extension portion comprises a connecting portion, which is a straight line segment and smoothly connects the welding portion and the bending portion. 4 . The electrical connector as claimed in claim 3 , wherein the terminals are assembled into the terminal accommodating grooves from the mating surface of the insulative body with the extending portion inclined upward. 5. The electrical connector according to any one of claims 1 to 4, wherein the holding portion includes a first holding portion, the fixing groove includes a first fixing groove, and the terminal receiving groove is on the mating surface An opening is formed, the first fixing groove is formed by extending the bottom of the terminal receiving groove to both sides of the opening, and the first holding part is fixed to the first fixing groove. 6 . The electrical connector according to claim 5 , wherein the contact portion is formed by vertically extending upward from an end of the first holding portion close to the mating surface. 7 . 7. The electrical connector according to claim 6, wherein the holding portion includes a second holding portion, the second holding portion is formed by bending and extending from the upper edge of the contact portion, the second holding portion Hold on to the insulating body to fix the contact part on the mating surface. 8. The electrical connector according to claim 7, wherein the fixing groove includes a second fixing groove, the second fixing groove is located above the terminal receiving groove, and the second holding portion is fixed on the first fixing groove. Two fixing slots. 9. The electrical connector according to claim 8, wherein the second holding portion is disposed opposite to the first holding portion, and the first and second holding portions are located on the same side of the contact portion. 10. The electrical connector according to any one of claims 1-4, wherein the insulating body is recessed with two parallel terminal receiving grooves on the mating surface.

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