CN2786810Y

CN2786810Y - Structure improvement of shrapnel

Info

Publication number: CN2786810Y
Application number: CN 200520009048
Authority: CN
Inventors: 蔡明宪
Original assignee: CHANG GU CHUAN TECHNOLOGY Inc
Current assignee: CHANG GU CHUAN TECHNOLOGY Inc
Priority date: 2005-03-25
Filing date: 2005-03-25
Publication date: 2006-06-07
Anticipated expiration: 2015-03-25

Abstract

The utility model relates to an elastic sheet which is formed by that a metal board sheet is integrally bent to form a structural shape which is provided with a contact part, a welding part and an extending part, wherein the contact part and the welding part are mutually parallel and the extending part is connected with two opposite angle ends of the contact part and the welding part. The tail ends of the contact part and the welding part are further bent to form elastically pressing segments butted with the extending part so as to avoid the elastic sheet unnecessarily hooking other objects; particularly, the elastically pressing segments can slide on the board surface of the extending part, and can generate auxiliary elastic supporting function when the contact part and the welding part of the elastic sheet are close to each other and press each other, so the stress of the whole elastic sheet can be distributed on a bending point between the elastically pressing segments and the extending part so as to effectively ease the fatigue of the elastic sheet.

Description

The structural improvement of shell fragment

Technical field

The utility model relates in the electric device in order to constitute casing and contact flat spring (or the title laminated type shell fragment) structural improvement that electric circuit connects mutually, aims to provide that a kind of volume is little, simple structure but can effectively delay the tired elastic piece structure of shell fragment.

Background technology

As shown in Figure 1, for as in the electric devices such as mobile computer, the laminated type elastic piece structure schematic diagram that connects mutually in order to the casing that constitutes related electric equipment (as connector etc.) and electric circuit, wherein, shell fragment 10 is to be bent to form contact site 11 and the weld part 12 that is parallel to each other by metal sheet (copper sheet) one, other has an extension 13 to be connected in the two diagonal angle ends of contact site 11 with weld part 12, make whole shell fragment 10 become the structure kenel that contact site 11 is provided in top, weld part 12 zone, and make contact site 11 have the elastic reaction that normality makes progress.

Whole shell fragment 10 is to utilize the bottom surface of weld part 12 and electric circuit 20 to fit when using, and utilizes in addition solid welding of welding material again, with being connected of formation shell fragment 10 and electric circuit 20; Again, similarly shell fragment is the pressing position that on average is laid in casing in use, and the shell fragment that therefore is provided in each position preferably can keep due elasticity, to guarantee the stressed unanimity in each position of casing; Yet, as shown in Figure 1 commonly use shell fragment at contact site and weld part during mutually near pressing, be by the turning point between contact site and the extension, and the turning point between weld part and the extension forms the resiliency supported effect, so will make stress concentrate on turning point between contact site and the extension, and the turning point between weld part and the extension, and it is tired to allow shell fragment produce easily, therefore causes shell fragment distortion, fracture even.

So that, have as announcing No. 250512 " seal type shell fragment ", M253955 number " elastic piece structure improvement " etc., on same main body, form the plural number elastic piece structure of basic shell fragment configuration as shown in Figure 1, in the hope of increasing via the quantity of basic shell fragment configuration with the dispersive stress effect, and utilizing basic shell fragment configuration wherein is to lay with interlace mode, reach with the shell fragment closure of openings purpose of avoiding shell fragment to collude pulling other article.

Yet, the similar plural number elastic piece structure of basic shell fragment configuration as shown in Figure 1 that on same main body, forms, because structure is too complicated, will increase the manufacturing cost of relevant forming mold, and too much punch process step also can increase the factor that causes the product fraction defective; Especially, under the limited space of electric circuit, be not the shell fragment that has enough spaces to increase in order to ccontaining volume, therefore reduce the practicality and the applicability of similar shell fragment on the contrary.

The utility model content

In view of this, the structural improvement of the utility model shell fragment, be the tail end of contact site and weld part further be bent with extension constitute connect to suppress section, this suppresses section is to slide on the plate face of extension, at the contact site of shell fragment with weld part during mutually near pressing, can produce auxiliary resiliency supported effect by suppressing section, and allow the stress of whole shell fragment can be distributed to the bending place of suppressing between section and the extension, effectively delay the tired of shell fragment.

And, the tail end of contact site and weld part is bent towards extension, and directly constitute the design of suppressing section, can be further that the tail end of contact site and weld part is hiding, avoid unnecessary the colluding of shell fragment and other object generation to pull.

Description of drawings

Fig. 1 is an appearance assumption diagram of commonly using shell fragment;

Fig. 2 is a shell fragment appearance assumption diagram of the present utility model;

Fig. 3 is an elastic piece structure end view of the present utility model;

Fig. 4 is a shell fragment action schematic diagram of the present utility model.

[figure number explanation]

10 shell fragments

11 weld parts

12 contact sites

13 extensions

14 suppress section

The 2O electric circuit

30 casings

Embodiment

For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:

The structural improvement of the utility model shell fragment, the structure of its whole shell fragment is formed as shown in Figures 2 and 3, be to be bent to form by the metal sheet one to have two contact sites that are parallel to each other 12 and weld part 11, and one extension 13 be connected in contact site 12 shell fragment 10 basic configurations with 11 liang of diagonal angle ends of weld part, when using, can utilize the bottom surface and the electric circuit 20 of weld part 11 to fit, utilize welding material solid welding in addition again, constituting being connected of shell fragment 10 and electric circuit 20, and contact with casing 30 by contact site 12.

Wherein, shell fragment 10 be the tail end at contact site 12 and weld part 11 be bent with extension 13 constitute connect to suppress section 14, this suppresses section 14 is to slide on the plate face of extension 13; According to this, when casing 30 is pressed into towards electric circuit 20, the contact site 12 that forces shell fragment 10 is with weld part 11 during mutually near pressing, as shown in Figure 4, each shell fragment 10 promptly can produce auxiliary resiliency supported effect by suppressing section 14, and allow the stress of whole shell fragment 10 can be distributed to the bending place of suppressing between section 14 and the extension 13, effectively delay the tired of shell fragment 10.

Moreover, shell fragment 10 of the present utility model is with contact site 12 or the tail end of weld part 11 bends towards extension 13, suppress the design of section 14 with direct formation, can't cause shell fragment 10 volumes to increase, and can will further the contact site 12 and the tail end of weld part 11 be hidden, avoid shell fragment 10 and other object that unnecessary colluding takes place and pull, more highlight its good practicality and applicability.

As mentioned above, this creation provides a preferable feasible elastic piece structure, effectively solves to commonly use shell fragment causes elastic fatigue easily because stress concentrates problem, so offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be this creation preferred embodiment, be not to limit to this creation with this, be with, with approximate, identical person such as the structure of this creation, device, feature, all should belong to founding within purpose and the claim of this creation such as.

Claims

1, a kind of structural improvement of shell fragment be to be bent to form by the metal sheet one to have two contact sites that are parallel to each other and weld part, and an extension is connected in the structural feature of contact site and weld part two diagonal angle ends; It is characterized in that:

The tail end of this contact site be bent with extension constitute connect to suppress section, this suppresses section and can slide on the plate face of extension.

2, the structural improvement of shell fragment according to claim 1 is characterized in that: the tail end of this weld part be bent with extension constitute connect to suppress section, this suppresses section and can slide on the plate face of extension.

3, a kind of structural improvement of shell fragment be to be bent to form by the metal sheet one to have two contact sites that are parallel to each other and weld part, and an extension is connected in the structural feature of contact site and weld part two diagonal angle ends; It is characterized in that:

The tail end of this weld part be bent with extension constitute connect to suppress section, this suppresses section and can slide on the plate face of extension.

4, as the structural improvement of shell fragment as described in the claim 3, it is characterized in that: the tail end of this contact site be bent with extension constitute connect to suppress section, this suppresses section and can slide on the plate face of extension.