CN201117976Y - Shielding shell structure of electric connector - Google Patents

Abstract

The utility model discloses an electric connector shields shell structure, this connector mainly by insulator, conductive terminal and shield the casing and constitute. The shielding shell consists of an upper wall, a lower wall and two side walls connecting the upper wall and the lower wall, the front end of the upper wall is provided with an arc-shaped top which is concave into the shielding shell through punch forming, the two side walls are provided with a clamping hook which is bent inwards in proper elasticity and extends to the lower wall, and the pair of clamping hooks and the arc-shaped convex part form a triangular clamping space together; during assembly, the insulating body bearing the conductive terminal is abutted against the hook of the shielding shell and is placed in the shielding shell, and then the insulating body base elastically extrudes the hook by utilizing the abutting of the concave top part on the shielding shell so as to be assembled and fixed in the triangular clamping space, thereby completing the connector with stable assembly and combination.

Description

Electric connector shielding shell structure

Technical field

The utility model relates to a shielding shell structure for an electrical connector, in particular to a shielding shell for an electrical connector that uses a recessed top of the shielding shell and elastic hooks extending to the lower wall to form a triangular clamping space. structure.

Background technique

Connectors are usually assembled and combined by multiple parts, so the parts must be combined in a stable assembly to ensure that the quality of the connector is not affected. As shown in FIG. 6 , an existing connector structure, the conventional connector 200 mainly includes an insulating body 50 , a conductive terminal 40 accommodated in the insulating body 50 and a shielding shell 60 covering the insulating body 50 Composition, wherein the insulating body 50 has a rectangular base 51 and a tongue plate 52 extending backward from the base 51 for docking; when assembled, the insulating body 50 directly relies on the wall of the base 51 and the shielding housing 60 Interference assembly and fixing are carried out, but the width of the base 51 of the insulating body 50 is relatively small, and the area where it interferes with the inner wall of the shielding housing 60 in the longitudinal direction is also relatively small, plus a certain gap exists due to tolerances during design and manufacture. In this way, it is easy to cause the insulating body 50 to loosen and shift in the shielding shell 60 after multiple mating plugs with the mating plug (not marked), resulting in poor contact during mating, although there are Use the bent piece 61 to fix it by bending and riveting with the jig, but if the bent piece 61 is riveted too heavily with the jig, the insulating body 50 will be damaged; otherwise, if it is too light, the effect will not be enough. Ideal; in order to solve the problems of the above-mentioned connectors, the industry has always been to reduce the tolerance of parts to solve it. However, reducing the tolerance will inevitably increase the precision of the mold, which will lead to an increase in cost. For the current advocacy of cost reduction, Undoubtedly disadvantageous.

It can be seen that the current method of reducing the tolerance also brings some defects when solving the problem, which is not convenient for the current production development and promotion. It is necessary to seek a new solution to meet the current actual needs; in view of this, this paper Aiming at the above-mentioned defects and deficiencies, the designer of the utility model has finally created a utility model design scheme that can solve the above-mentioned deficiencies and deficiencies through long-term research and the application of academic theories.

Contents of the invention

The main purpose of this utility model is to provide a shielding shell structure for connectors. A curved top is recessed inward on the shielding shell, and the top can be matched with the elastic hook on the side wall surface to make the insulating body elastic. It is clamped firmly in a triangular form, so as to prevent the loosening of the insulating body when it is plugged in.

In order to achieve the above purpose, it can be achieved through the following technical solutions: The utility model provides a shielding shell structure for an electrical connector, and the connector is mainly composed of an insulating body, a conductive terminal and a shielding shell. The shielding shell is composed of an upper wall, a lower wall, and two side walls connecting the upper and lower walls. There are a number of elastic pieces in the middle of the upper wall, and at the front end of the elastic piece, there is a hole that is recessed into the shielding shell after stamping and forming. The arc-shaped top is also provided with a pair of bayonet sockets on both sides of the top; and the two side walls are respectively provided with a first welding foot formed by tearing and bending, and a front of each first welding foot is provided The hooks are properly elastically bent inwardly and extend to the lower wall. The pair of hooks and the above-mentioned arc-shaped top form a triangular clamping space together, and there is also a convenient assembly on the front of the hooks. chamfering; in addition, the front end of the shielding shell is provided with a pair of bending pieces extending forward from the side and a pair of second welding parts extending from the side and then bent. When assembling, put the insulating body carrying the conductive terminal against the hook of the shielding case and start to put it in, and then use the abutment of the concave top on the shielding case to make the base of the insulating body align with the hook Under the generation of elastic extrusion, it is assembled and fixed in the triangular clamping space, so as to complete a connector with stable assembly and combination.

Compared with the prior art, the utility model directly uses an arc-shaped top recessed on the shielding shell, so that the top can cooperate with the elastic hook on the lower surface to clamp the insulating body elastically in a triangular manner, and no longer The improvement is made by reducing the tolerance, thereby effectively preventing the insulator bodies from being offset when they are mated, ensuring the normal mating transmission of the connectors, and reducing the production cost at the same time.

Description of drawings

Fig. 1 is the exterior view of the electrical connector of the preferred embodiment of the present invention;

Fig. 2 is a three-dimensional exploded view of an electrical connector in a preferred embodiment of the present invention;

Fig. 3 is a view from another angle of the insulating body of the preferred embodiment of the present invention;

Fig. 4 is a perspective view of a shielding case in a preferred embodiment of the present invention.

Fig. 5 is a cross-sectional view of an electrical connector in a preferred embodiment of the present invention.

FIG. 6 is an external view of a conventional electrical connector.

100-new connector, 10-conductive terminal, 11-welding part, 12-fixing part, 13-elastic contact part, 20-insulating body, 21-base, 211-front face, 212-terminal groove, 213-guide Positive groove, 214-Protrusion, 215-Positioning column, 216-Stuck point, 217-Notch, 218-Step surface, 22-Tongue plate, 30-Shielding shell, 31-Upper wall, 311-Elastic sheet, 312- Top protrusion, 313-bayonet, 32-lower wall, 322-tongue, 33-side wall, 331-first welding foot, 332-hook, 333-chamfer, 334-bending piece, 335-the first Two welding pins, 200-conventional connector, 40-conductive terminal, 50-insulating body, 51-base, 52-tongue plate, 60-shielding shell, 61-bending piece.

Detailed ways

For the convenience of describing the implementation structure of the present utility model in detail, now in conjunction with the accompanying drawings in conjunction with the preferred embodiments of the utility model, the utility model is described in detail as follows:

Shown in Figures 1, 2, 3 and 4 is a specific embodiment of the shielding shell structure of the utility model connector, which is a communication input/output connector 100, which includes an insulating body 20, conductive terminals 10 and The shielding shell 30 is composed. Wherein, the insulating body 20 has a base 21 and a tongue plate 22 extending backward from the base 21. The base 21 is in the shape of a rectangle, and its front surface 211 is provided with a number of terminals equal to the number of conductive terminals 10. T-shaped terminal grooves 212, these terminal grooves 212 have been extended backwards and penetrated to the rear end surface of the tongue plate 22 (not marked), and at the same time communicate with the front end of the upper surface of the tongue plate 22, below the terminal grooves 212 are provided with The terminal groove 212 is symmetrically formed by a plurality of bosses (not marked) at intervals to form a guiding groove 213, and a square protrusion 214 is respectively provided on both sides of the guiding groove 213, and a square protrusion 214 is respectively provided under each protrusion 214. The positioning column 215 is used to fix on the circuit board (not marked). In addition, the upper surface of the base is also provided with a pair of locking points 216, and the lower surface is also provided with a gap 217 for inserting the tongue on the shielding shell. and the stepped surfaces 218 on both sides; the tongue plate 22 is in the shape of a "D" and is used to carry the conductive terminal 10 for docking transmission with a docking plug (not shown).

The conductive terminal 10 is formed by punching a thin metal plate, and includes a fixing portion 11 , a welding portion 12 at a front end of the fixing portion, and an elastic contact portion 13 extending backward from the fixing portion.

The shielding shell 30 covers the surface of the insulating body 20 and is composed of an upper wall 31, a lower wall 32 and two side walls 33 connecting the upper and lower walls, and a plurality of elastic pieces 311 are arranged in the middle of the upper wall 31. The elastic sheet 311 is used to increase the holding force of the mating plug when it is plugged in with the docking plug. The front end of the elastic sheet 311 is provided with an arc-shaped convex part 312 that is punched and formed into the shielding shell 30, and on the top 312 is also provided with a pair of bayonet sockets 313 on both sides; and the two sidewalls 33 are respectively provided with a first welding foot 331 formed by tearing and bending, and a front of each first welding foot 331 is provided with a suitable elastic direction. The hook 332 is bent inside and extends to the lower wall 32. The pair of hooks 332 and the arc-shaped top 312 together form a triangular holding space. The chamfer 333 is convenient for assembly; in addition, the front end of the shielding housing 30 is provided with a pair of bent pieces 334 extending forward from the side wall 33 and a pair of second welding parts 335 extending from the side wall 33 and then bent .

Please refer to FIG. 5 , during assembly, the conductive terminal 10 is inserted into the terminal groove 212 of the front end surface 211 of the insulating body 20 and fixed therein; then, the stepped surface of the insulating body 20 carrying the conductive terminal 10 The rear end of 218 abuts against the hook 332 of the shielding case 30 in a slightly oblique manner and starts to be inserted, and then uses the abutment of the concave top 312 on the shielding case 30 to make the base 21 of the insulating body 20 The hook 332 is elastically squeezed to continue to advance, and along with the advancement, it guides itself and makes the clamping point 216 on it cooperate with the bayonet 313 on the shielding shell 30 and position it; finally, use the jig to bend the The piece 334 is bent and riveted, so as to complete the assembly and fixation of the insulating body 20 under the triangular clamping space formed by the top 312 and the hook 332 .

The key points of the present utility model are: utilize the top 312 that is sunken inwardly to be arranged on the upper surface of the shielding shell 30, and make the top 312 cooperate with the elastic hook 332 on the lower surface to clamp the insulating body 20 elastically in a triangular manner. The housing is stable, so as to prevent the insulating body 20 from loosening and ensure the normal connection and transmission of the connector.

In order to make those familiar with the technology truthfully understand the purpose and effect of implementing the utility model spirit of the utility model, the embodiments and accompanying drawings are only to illustrate the utility model, and do not impose any restrictions on the utility model. There may be other variant implementation modes, so anyone who is familiar with the technology and implements other styles without departing from the spirit of the utility model of the present case shall be regarded as an equivalent implementation of the claims of the present case.

Claims (3)

1. An electrical connector shielding shell structure, the connector (100) mainly includes an insulating body (20), a conductive terminal (10) accommodated in the insulating body (20) and a cover on the insulating body (20) The shielding shell (30) consists of an insulating body (20) including a base (21) for assembling and fixing with the shielding shell (30) and a tongue plate (22) for mating with a mating plug, and is characterized in that : the upper wall (31) of the shielding housing (30) is provided with an inwardly recessed top (312), the top (312) and the grab (332) extending from the two side walls (33) to the lower wall (32) ) together form a clamping space for accommodating and fixing the insulating body (20). 2. The housing structure for an electrical connector according to claim 1, characterized in that: the concave top (312) is in the shape of an arc, and the clamping space formed thereby is in a triangular shape. 3. The shielding housing structure for the electrical connector according to claim 1, characterized in that: the front side of the hook (332) is also provided with a chamfer (333) for easy assembly.

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