CN201075452Y - Electric Connector - Google Patents

Abstract

The utility model discloses an electric connector, comprising an isolation body, a plurality of terminals held in the isolation body and a metal shell body enclosing the outside of the isolation body. The isolation body is generally injected and molded by plastic material, comprising a tongue part and a base part protruding from the tongue part, the base part has a longitudinal direction along a binding direction and a relative transverse direction and a rear end surface, the rear end surface is provided with holes, therefore, the shrinkage ratios of the base part and the tongue part of the plastic are close when being solidified, thus improving the warping phenomenon of the isolation body.

Description

electrical connector

【Technical field】

The utility model discloses an electrical connector, in particular to a universal serial interface electrical connector.

【Background technique】

The electrical connector related to the utility model generally includes an insulating body, a number of terminals accommodated in the insulating body, and a metal shell surrounding the insulating body. The insulating body is generally formed by injection molding of plastic materials, including a tongue And protruding from the base of the tongue, the tongue is a flat wall surface, with inclined walls protruding on both sides, the tongue is provided with a number of accommodation channels, in which the terminals are accommodated, and the accommodation channels run through the base, so that the protrusions in the insulating body Where the base is extended, the cross-section varies greatly. Due to the difference in the thickness of the insulating body, the cross-section of the protruding base is large, and more plastic is distributed per unit length, and the shrinkage produced by it is larger than that of the tongue, so there will be stress when it is completely solidified, which will cause the insulating body to warp. affect the quality of the product.

In view of the above disadvantages, it is necessary to provide an improved electrical connector to overcome the above-mentioned defects of the electrical connector.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electrical connector, which can improve the warping phenomenon of the insulating body.

In order to solve the above technical problems, the utility model provides an electrical connector, which includes an insulating body, a number of terminals accommodated in the insulating body, and a metal shell surrounding the insulating body, and the insulating body is injection-molded by plastic materials It includes a tongue and a base protruding from the tongue. The base has a longitudinal direction along the butt joint direction and a relative transverse direction. The base has a rear end surface with a hole in the middle of the rear end surface.

Compared with the prior art, the utility model has the following beneficial effects: the middle position of the rear end surface of the insulating body is provided with a hole, so that the plastic of the insulating body is distributed roughly evenly along the longitudinal direction, and the contraction ratio of the base and the tongue is close when solidified. Therefore, the warping phenomenon of the insulating body is improved.

【Description of drawings】

Fig. 1 is a combination diagram of the electrical connector of the present invention.

Fig. 2 is an exploded view of the electrical connector of the present invention.

FIG. 3 is an exploded view from another angle of the electrical connector of the present invention.

【Detailed ways】

Fig. 1 is an assembly diagram of an electrical connector 100 of the present invention. Comparing Fig. 2 and Fig. 3, it can be found that the electrical connector 100 includes an insulating body 1, a plurality of terminals 2 accommodated in the insulating body 1, and surrounding the insulating body. 1 outside the metal casing 3 .

The insulating body 1 is formed by injection molding of plastic materials, and includes a substantially flat tongue 12 and a base 11 protruding from the tongue 12. The tongue 12 is a flat wall with inclined walls 121 protruding from both sides. There are a number of accommodation passages 122 in which the terminals 2 are accommodated. The accommodation passages 122 run through the base 11. The base 11 has a longitudinal direction along the docking direction and a relative transverse direction. The base 11 has a rear end surface 112 away from the docking direction. The middle position of the rear end surface 112 is A square hole 111 is provided.

The terminal 2 includes a contact portion 21 , a connection portion 22 extending from the contact portion 21 , and a soldering portion 23 extending from the connection portion 22 .

The metal shell 3 is divided into an upper shell 31 and a lower shell 32 . The upper casing 31 includes an upper plate 310 and first side walls 311 extending from both sides of the upper plate 310 . The upper plate 310 has a slot 3101 at a front end thereof, and the first side wall has a protrusion 3111 . The lower casing 32 includes a lower plate 320 and second sidewalls 321 extending from two sides of the lower plate 320 . The second sidewall 321 has an opening 3211 corresponding to the protrusion 3111 of the first sidewall 311 . Both sides of the front end of the lower plate 320 are connected to form an insertion portion 322 , and the insertion portion 322 is provided with a curved third side wall 323 . The rear end of the insertion portion 322 is provided with a protrusion 3221 corresponding to the slot 3101 of the upper plate 310 .

When assembling, insert the terminal 2 into the accommodating channel 122 of the insulating body 1, and then insert the insulating body 1 into the lower case 32 from the back to the front. 1 The slanted wall 121 of the tongue 12 is in contact with each other. Since the lower housing 32 is provided with a curved third side wall 323, which is narrow at the top and wide at the bottom, the slant wall 121 of the tongue 12 of the insulating body 1 is compatible with it. , to prevent the insulating body 1 from loosening. Next, cover the upper case 31 , and the protrusion 3111 of the first side wall 311 of the upper case 31 is accommodated in the opening 3211 of the second side wall 321 of the lower case 32 , so far the entire electrical connector 100 is assembled.

The electrical connector 100 of the utility model is provided with a hole 111 in the middle position of the rear end surface 112 of the base 11 of the insulating body 1. By setting the hole 111, the plastic of the insulating body 1 is distributed roughly evenly along the longitudinal direction, so that the shrinkage ratio of each part is close when solidified, thereby improving The warping phenomenon of the insulating body 1 .

It is worth mentioning that in this embodiment, the hole 111 is set in the middle of the rear end surface of the base 11. In addition, in order to achieve the purpose of improving the warpage, it is also possible to set a number of evenly distributed hole.

The above are only the implementations provided by the utility model, not all or the only implementations. Any equivalent changes to the technical solution of the utility model adopted by those of ordinary skill in the art by reading the specification of the utility model are all equivalent changes of the utility model. covered by the claims of the novelty.

Claims (8)

1. An electrical connector, comprising an insulating body, a number of terminals accommodated in the insulating body, and a metal shell surrounding the insulating body, the insulating body formed by injection molding of plastic materials includes a tongue and a tongue protruding from the tongue The base of the base has a rear end surface, and it is characterized in that: the rear end surface is provided with a hole. 2 . The electrical connector according to claim 1 , wherein the hole is a hole located in the middle of the rear end surface of the base. 3 . 3. The electrical connector according to claim 1, wherein the holes are a plurality of holes evenly distributed on the rear surface of the base. 4. The electrical connector according to claim 1, wherein the metal shell comprises an upper shell and a lower shell. 5. The electrical connector according to claim 4, wherein the upper housing comprises an upper plate and first side walls extending from both sides of the upper plate, a slot hole is provided at the front end of the upper plate, and the first side wall With bumps. 6. The electrical connector according to claim 5, wherein the lower housing includes a lower plate and second side walls extending from both sides of the lower plate, and the two sides of the front end of the lower plate are connected to form a socket, the The socket part is provided with a curved third side wall. 7. The electrical connector as claimed in claim 6, wherein the second side wall is provided with an opening corresponding to the protrusion of the first side wall. 8 . The electrical connector according to claim 6 , wherein the rear end of the insertion part is provided with a protruding piece corresponding to a slot hole of the upper plate.

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