CN202076535U

CN202076535U - Metal shell of connector

Info

Publication number: CN202076535U
Application number: CN 201120135979
Authority: CN
Inventors: 甘延鹏; 朱武; 刘望全; 胡光才
Original assignee: DONGGUAN YUQIU ELECTRONICS Co Ltd
Priority date: 2011-05-03
Filing date: 2011-05-03
Publication date: 2011-12-14
Anticipated expiration: 2021-05-03

Abstract

The utility model discloses a metal shell of a connector, which is a frame body structure which is formed by a metal plate by stamping and bending the metal plate and abutting the two free ends of the metal plate and into which a corresponding plug is inserted. The two free ends are respectively a first free end and a second free end. A concave position which is concaved from the inside to the outside is arranged on the internal surface of the first free end. The two ends of the concave position along the fore-and-aft direction are connected onto the wall surface of the frame body. The left-and-right direction of the concave position is disconnected with the wall surface. A fastening piece is arranged at the second free end. The fastening piece penetrates through the concave position along the left-and-right direction and the tail end of the fastening piece is hooked on the side surface of the concave position. By adopting the abutting structure, the metal shell of the connector has the advantages that the torsion resistance is very good, the situation that the abutted position of the metal shell in the traditional technology is loosened because the torsion resistance is not enough, the product quality of the metal shell of the connector is improved, the overall performance of the connector is guaranteed and the flatness is kept to be better.

Description

The metal shell of connector

Technical field

The utility model relates to the field of connectors technology, refers in particular to a kind of metal shell that firm, twisting resistance intensity height, its docking structure are difficult for the connector that strutted that connects.

Background technology

At present, along with development of science and technology, various electronic products are also in develop rapidly, and be widely applied to electric connector in the electronic product, and for example, HDMI (High Definition Multimedia Interface), be the HDMI connector, it has extensively become the interface standard of Digital Television and consumption electronic product; Therefore, the quality of connector quality can produce extremely important influence to the result of use of associated electrical product.

And the metal shell of connector has also played important effect in product; for example; shielding, protective effect etc., the structural stability of this metal shell directly affect the effect performance of metal shell, even have influence on the product quality and the performance of whole connector.

Existing metal shell mainly contains integrated seamless frame structure and two kinds of seam frame structures is arranged, wherein, it is to adopt the deep rolling moulding of unmatchful access node structure and have the firm and advantage that is difficult for cracking of structure for this seamless frame structure,, on the one hand because the process technology complexity of the required application of this deep rolling moulding, the cost height of equipment, processing procedure is cumbersome etc., its cost is very high, on the other hand because its unmatchful access node structure, lack enough scalabilities, thereby difficulty guarantees that metal shell has chucking power preferably, in view of the factor of above-mentioned two aspects, the metal shell of above-mentioned seamless frame structure is not widely applied in the connector; And the above-mentioned metal shell that the seam frame structure is arranged, its process technology is simple and easy, production cost is lower and obtained extensive use, as shown in Figure 1, this metal shell (300) is through punching press by a metallic plate, its two free end (301 after the bending, 302) frame structure of butt joint formation, this docking structure is positioned on the sidewall of metal shell (300), this docking structure generally adopts the cooperation of swallow-tail form fixture block (303) and swallow tail shaped slot (304), the twisting resistance intensity of this kind docking structure a little less than, it is often strutted when big because of improper insertion especially torsion, make interface (305) enlarge and cause the instability of connector construction and performance, for example, influence this connector and its effect that is connected, and influence shield effectiveness of metal shell (300) etc. plug-in unit.Certainly; also some is by direct that aforementioned two free-ended tail ends are stacked and weld together;; easily produce in the weld job process bad, and its operation process trouble, production cost is higher; and; in the actual use, also the loosening phenomenon of weld appears in regular meeting, has had a strong impact on the quality of product.

The utility model content

In view of this, the utility model is at the disappearance of prior art existence, and its main purpose provides a kind of metal shell of connector, and it connects firm, twisting resistance intensity height, and its docking structure is difficult for being strutted.

For achieving the above object, the utility model adopts following technical scheme:

A kind of metal shell of connector, system is by the metallic plate frame structure for corresponding plug insertion that its two free ends butt joint forms after punching press, bending, this two free end is respectively first free end and second free end, wherein, the recessed from inside to outside recess that is provided with of this first free end inner surface, this recess is connected in the framework wall along the two ends of fore-and-aft direction, the left and right directions of this recess and wall disconnect, second free end is provided with cramp, and this cramp passes recess and its tail end along left and right directions and colludes on the side of recess.

After the utility model adopts technique scheme, its beneficial effect is: when aforementioned first free end and second free end connect, only need the second free-ended cramp is passed the first free-ended recess along left and right directions, utilize the tail end of this cramp to collude tight butt joint, first free end and second free-ended firm the connection have so just been realized, and this docking structure has good twisting resistance intensity, the joint of having avoided metal shell in the conventional art unclamps phenomenon because of what its twisting resistance caused inadequately, improved the product quality of connector metal shell, help guaranteeing the overall performance of connector, and keep evenness preferably.

Description of drawings

Fig. 1 is the metal shell perspective view of more representative connector in the prior art;

Fig. 2 is the perspective view of preferred embodiment in the utility model;

Fig. 3 is the perspective view of another angle of connector metal shell among Fig. 2;

Fig. 4 is the local enlarged diagram at A place among Fig. 2;

Fig. 5 is the local enlarged diagram at B place among Fig. 3;

Fig. 6 is the perspective view when first free end does not dock fully with second free end among Fig. 3;

Fig. 7 is that Fig. 2 is the schematic partial cross-sectional view at N-N place;

Fig. 8 is the schematic partial cross-sectional view at C-C place among Fig. 3.

The accompanying drawing identifier declaration:

300, metal shell 301, free end

302, free end 303, swallow-tail form fixture block

304, swallow tail shaped slot 305, interface

20, lower wall 21, first free end

211, recess 22, second free end

221, cramp 2211, bent sheet

2212, earflap 201, swallow-tail form fixture block

202, swallow tail shaped slot.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

See also Fig. 2 to shown in Figure 8, it has demonstrated the concrete structure of second kind of embodiment of the utility model, at this, is that example explains with horizontal connector metal shell, and following all definition on direction are reference according to the direction that is indicated among Fig. 3 all.This metal shell has the front and back ends opening, and it includes upper side wall, lower wall 20, left side wall and right side wall, and wherein, the joint of this first free end 21 and second free end 22 is positioned on this lower wall 20.

See also Fig. 4 to shown in Figure 8, these first free end, 21 inner surfaces are concaved with a recess 211 from inside to outside, and this recess 211 is connected in the lower wall 20 of framework along the two ends of fore-and-aft direction, and the left and right directions of this recess 211 and lower wall 20 disconnect.And, this second free end 22 is provided with cramp 221, this cramp 221 is gradually wide structure towards its tail end, and the tail end of this cramp is provided with bent sheet 2211 and two earflaps 2212, after this cramp 221 passes aforementioned recess 211, its bent sheet 2211 and two earflaps 2212 all collude the right flank (also can be designed as only has aforementioned two earflaps 2212 or aforementioned bending cramp 2211, does not limit at this) in aforementioned recess 211.Need to prove that in present embodiment, aforementioned cramp 221 is designed to be gradually wide structure towards its tail end, correspondingly, what aforementioned recess 211 was designed to match with cramp is gradually narrow structure towards the first free end tail end.

In addition, in the present embodiment, also be provided with swallow-tail form fixture block 201 and the swallow tail shaped slot 202 that matches on aforementioned first free end 21 and second free end 22, this swallow-tail form fixture block 201 buckles in the corresponding swallow tail shaped slot 202 (as shown in Figure 2).

Design focal point of the present utility model is, main system is designed to cramp with aforementioned first free end and the second free-ended docking structure and passes recess, and the tail end that utilizes this cramp colludes tight butt joint, first free end and second free-ended firm the connection have so just been realized, and this docking structure has good twisting resistance intensity, the joint of having avoided metal shell in the conventional art unclamps phenomenon because of what its twisting resistance caused inadequately, improved the product quality of connector metal shell, help guaranteeing the overall performance of connector, and keep evenness preferably.

The above, it only is preferred embodiment of the present utility model, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1. the metal shell of a connector, system is by the metallic plate frame structure for corresponding plug insertion that its two free ends butt joint forms after punching press, bending, it is characterized in that: this two free end is respectively first free end and second free end, wherein, the recessed from inside to outside recess that is provided with of this first free end inner surface, this recess is connected in the framework wall along the two ends of fore-and-aft direction, the left and right directions of this recess and wall disconnect, second free end is provided with cramp, and this cramp passes recess and its tail end along left and right directions and colludes on the side of recess.

2. the metal shell of connector according to claim 1 is characterized in that: the tail end of described cramp is provided with the bent sheet of the side that is used to catch on aforementioned recess of stretching out.

3. the metal shell of connector according to claim 1 is characterized in that: the tail end of described cramp is provided with two earflaps of the side that is used to catch on aforementioned recess.

4. the metal shell of connector according to claim 1, it is characterized in that: described cramp is gradually wide structure towards its tail end, and correspondingly, aforementioned recess is gradually narrow structure towards the first free end tail end.

5. the metal shell of connector according to claim 1, it is characterized in that: also be provided with the swallow tail shaped slot and the swallow-tail form fixture block that match on described first free end and second free end, this swallow-tail form fixture block is buckled in the corresponding swallow tail shaped slot.

6. the metal shell of connector according to claim 1, it is characterized in that: described metal shell has the front and back ends opening, include upper side wall, lower wall, left side wall and right side wall, wherein, aforementioned first free end and the second free-ended joint are positioned on this lower wall.