CN201160168Y - electrical connector - Google Patents

Abstract

An electrical connector, which includes an insulating body, a terminal and a shielding case, the insulating body includes longitudinal two side walls, a receiving space is provided between the two side walls, and terminals communicating with the receiving space are provided on the side walls Receiving groove; the terminal includes a grounding terminal, the terminal is installed in the terminal receiving groove, each terminal includes a contact part, a holding part and a tail part; the shielding shell is covered on the side wall of the insulating body, and it is provided with The main body and the grounding arm extending from the main body and capable of contacting the grounding terminal; the grounding arm includes a first arm covering the surface of the side wall and a second arm bent and extended from the first arm. A slit is formed between one arm and the main body, and the second arm is in contact with the ground terminal.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector with a shielding shell.

【Background technique】

U.S. Patent No. 5,915,976 discloses an electrical connector for connecting a circuit board and a mating connector, which includes an insulating body, terminals inserted into the insulating body, and a shielding shell covering the side wall of the insulating body , the edge of the shielding shell is provided with extension arms, and the extension arms are bent and extended approximately perpendicular to the edge of the shielding shell, and the side wall of the insulating body is provided with a through groove corresponding to the receiving groove of the ground terminal, and the extension arm penetrates through the through groove. The slot is electrically connected to the ground terminal so as to ground the shielding case. Due to the small thickness of the side wall of the insulating body, the extension arm can only be accommodated in the through slot by setting a small length. The extension arm is in elastic contact with the ground terminal after being bent. Due to its small length, the extension arm is not elastic enough, which may lead to poor contact with the terminal.

Therefore, it is necessary to design an electrical connector that can overcome the above defects.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electrical connector, the shielding shell of which is in good contact with the grounding terminal.

In order to solve the above problems, the utility model adopts the following technical solution: an electrical connector, which includes an insulating body, a terminal and a shielding case, the insulating body includes vertically long two side walls, and there is a housing between the two side walls Space, the side wall is provided with a terminal receiving groove communicating with the receiving space; the terminal includes a grounding terminal, the terminal is installed in the terminal receiving groove, and each terminal includes a contact part, a holding part and a tail part; the shielding shell Covering the side wall of the insulating body, it is provided with a main body and a grounding arm extending from the main body and can be in contact with the grounding terminal; the grounding arm includes a first arm covering the surface of the side wall and extending from the second arm A second arm is bent and extended from the first arm, a slit is formed between the first arm and the main body, and the second arm is in contact with the ground terminal.

Compared with the prior art, the electrical connector of the utility model has the following beneficial effects: the grounding arm of the shielding shell of the electrical connector of the utility model has a first arm part covering the side wall of the insulating body, and the first arm part A slit is provided between the main body of the shielding case, and the first arm can spring in a direction perpendicular to the side wall, providing enough elasticity for the second arm to make the grounding arm contact the grounding terminal well.

【Description of drawings】

Fig. 1 is a three-dimensional assembled 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 cross-sectional view along line A-A shown in Fig. 1 .

FIG. 4 is an enlarged view within the circle shown in FIG. 2 .

【Detailed ways】

Please refer to FIG. 1 and FIG. 2 , the electrical connector of the present invention includes an insulating body 1 , a plurality of terminals 2 installed in the insulating body 1 and two shielding shells 3 covering the insulating body 1 .

Please refer to FIG. 2 and FIG. 3 , the insulator body 1 includes longitudinal side walls 11 and two end walls 12 connecting the two side walls 11 , a receiving space 10 is formed between the two side walls 11 , and the receiving space 10 The bottom of the accommodating space 10 is a base 15 located between the two side walls 11 and connected to the two side walls 11 for accommodating a mating portion of a mating connector (not shown). Terminal receiving grooves 13 communicating with the receiving space 10 are provided on the inner sides of the two side walls 11 . Several sets of holding blocks 111 are provided on the upper edge of each side wall 11 , and slide slots 112 are provided between each set of holding blocks 111 . A plurality of protrusions 113 are disposed on a lower edge of each side wall 11 .

Please refer to Fig. 2 and Fig. 3, the plurality of terminals 2 include signal terminals and grounding terminals, the two terminals have the same structure, and both include a contact part 21, a holding part 22 and a tail part 23, and these terminals are installed on the insulating body respectively In the terminal accommodating groove 13 of 1, the terminal tail 23 extends out of the insulating body for soldering with the circuit board. Corresponding to each terminal accommodating groove 13 for accommodating a grounding terminal, the side wall 11 of the insulating body is provided with a notch 14 communicating with the terminal accommodating groove 13 .

The shielding case 3 is covered on the side wall 11 of the insulating body 1. The shielding case 3 is provided with a plurality of grooves 31 corresponding to the protrusions 113 on the side wall 11. The upper edge of the shielding case 3 is provided with a A number of retaining pieces 32 in the groove 112, the lower edge of the shielding shell 3 is provided with the same number of grounding arms 33 as the number of the notch 14, each grounding arm 33 includes a first arm portion 331 extending from the shielding shell 3 and The second arm portion 332 is bent and extended from the first arm portion. In this embodiment, the second arm portion 332 is perpendicular to the first arm portion 331 to facilitate the second arm portion to contact the ground terminal. For the convenience of description, the part of the shielding housing 3 other than the ground arm 33 is referred to as the main body. A slit 333 (refer to FIG. 4 ) is provided between the first arm portion 331 and the main body of the shielding housing 3 , and a convex portion 334 is provided at a free end of the second arm portion 332 . During assembly, the groove 31 accommodates the bump 113, and the holding piece 32 slides upward from the bottom of the chute 112 until the groove 31 and the bump 113, the holding piece 32 and the chute 112 are closely matched, and the second arm portion of the grounding arm 33 332 is accommodated in the notch 14, the first arm portion 331 covers the side wall 11 of the insulating body, the terminal 2 is assembled in the insulating body 1 from bottom to top, and the second arm portion 332 of the grounding arm 33 abuts against the grounding The holding portion 22 of the terminal is in elastic contact with the ground terminal. Since the holding portion 22 is locked in the terminal receiving groove 13 , the second arm portion 332 abuts against the holding portion 22 , which can better maintain the positive position of the terminal.

A slit 333 is provided between the first arm portion 331 of the grounding arm 33 and the main body of the shielding case 3, so that the first arm portion 331 can spring in a direction perpendicular to the side wall 11, and the length can be increased as required so that The grounding arm 33 has enough elasticity, because the first arm portion 331 is formed by cutting the slit 333 of the shielding case 3 and the first arm portion 331 extends along the outer surface of the side wall 11 and is not accommodated in the insulating housing 1, Therefore, increasing the length of the slit 333 to lengthen the first arm portion 331 will not increase the thickness of the side wall 11 . Compared with the prior art, the grounding arm 33 of the electrical connector of the present invention has enough elasticity, so that the second arm portion 332 can make good elastic contact with the grounding terminal.

In this embodiment, the tail portion 23 of the ground terminal extends approximately perpendicular to the holding portion 22. When the shielding case slides downward, the convex portion 334 of the second arm portion 332 can be held against the tail portion 23 of the grounding terminal to prevent the shielding case from 3 Keep sliding.

Claims (9)

1. An electrical connector, which includes an insulating body, a terminal and a shielding housing, the insulating body includes vertically long two side walls, a receiving space is provided between the two side walls, and a receiving space is provided on the side wall to communicate with the receiving space The terminal receiving groove; the terminal includes a grounding terminal, the terminal is installed in the terminal receiving groove, each terminal includes a contact part, a holding part and a tail part; the shielding shell is covered on the side wall of the insulating body, and There is a main body and a grounding arm extending from the main body and capable of contacting the grounding terminal; the feature is that the grounding arm includes a first arm covering the surface of the side wall and an arm bent and extended from the first arm. In the second arm part, a slit is formed between the first arm part and the main body part, and the second arm part is in contact with the ground terminal. 2. The electrical connector as claimed in claim 1, wherein the first arm is perpendicular to the second arm. 3. The electrical connector as claimed in claim 1, wherein the second arm portion has a convex portion. 4. The electrical connector as claimed in claim 1, wherein the tail portion of the ground terminal is perpendicular to the holding portion. 5. The electrical connector as claimed in claim 1, wherein the second arm abuts against the terminal. 6. The electrical connector as claimed in claim 1 or 2, wherein the second arm part extends into the insulating body. 7. The electrical connector as claimed in claim 6, wherein the side wall is provided with a notch for accommodating the second arm portion and communicating with the terminal receiving groove. 8. The electrical connector as claimed in claim 6, wherein the second arm abuts against the holding portion of the terminal. 9. The electrical connector according to any one of claims 1 to 4, wherein the shielding shell is provided with a groove, and the side wall of the insulating body is provided with a protrusion matching the groove.

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