CN201263246Y

CN201263246Y - Electrostatic protection shrapnel

Info

Publication number: CN201263246Y
Application number: CNU2008203017894U
Authority: CN
Inventors: 谢坤智; 赵见强; 黄金生
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-08-08
Filing date: 2008-08-08
Publication date: 2009-06-24
Anticipated expiration: 2018-08-08

Abstract

The utility model provides an electrostatic defending shrapnel, comprising a first sub shrapnel and a second sub shrapnel; the first sub shrapnel comprises a bottom used for being welded to a circuit substrate and a connecting part; the second sub shrapnel comprises a collision part used for elastically colliding a component and a connecting part, wherein, two sides of one connecting part are folded to form a chute, thus holding the other connecting part; and the connecting parts are provided with retainers, thus preventing the sub shrapnels from relatively sliding. As the shrapnel is divided into a plurality of sub shrapnels, the height of the first sub shrapnel can be determined according to the surface mount technology (SMT), and the first sub shrapnel can be welded to the circuit substrate by use of the SMT.

Description

The electrostatic defending shell fragment

Technical field

The utility model relates to a kind of electrostatic defending shell fragment.

Background technology

In electronic installation, shell fragment is the element that often uses.The one end is welded on the circuit substrate, the other end elasticity metal framework of conflicting, thus electrostatic defending to circuit substrate is provided.

The height of shell fragment is to be determined by the distance between circuit substrate and metal framework.When shell fragment is too high, (for example be higher than 10mm), can produce following problem: 1. can't application surface packaging technology (surface mounted technology, SMT) shell fragment is assembled on the circuit substrate, and must shell fragment be welded on the circuit substrate, thereby reduced packaging efficiency by manual mode.2. shell fragment is easily because of being out of shape, fractureing and lost efficacy.

The utility model content

The utility model provides a kind of electrostatic defending shell fragment, and it is suitable for adopting the SMT technology to be installed on the circuit substrate, is not subjected to the influence of shell fragment height itself.

Described electrostatic defending shell fragment comprises one first bullet sheet, and it comprises that one is used to be welded to the bottom of a circuit substrate, and a junction; And one second bullet sheet, it comprises that one is used for elasticity the conflict contact part of an element and a junction.Wherein the dual-side of a junction is folded to form chute, thereby holds another connecting portion; Be formed with retainer on the connecting portion, thereby stop bullet sheet slide relative.

Owing to the electrostatic defending shell fragment is divided into several bullet sheets, thereby can determines the height of the first bullet sheet, make the first bullet sheet can use the SMT technology to be welded on the circuit substrate according to the requirement of SMT.

Simultaneously, each the bullet sheet height after the decomposition is all lower, has reduced the risk because of being out of shape, fractureing and lost efficacy.

Description of drawings

Fig. 1 is the stereogram of the electrostatic defending shell fragment of the utility model one preferred implementation, and this shell fragment is welded on the circuit substrate.

Fig. 2 is the explosive view of shell fragment among Fig. 1.

Fig. 3 is the stereogram of the electrostatic defending shell fragment of another execution mode of the utility model.

Fig. 4 is the explosive view of shell fragment among Fig. 3.

Embodiment

Please refer to Fig. 1, it has disclosed the electrostatic defending shell fragment 10 of the utility model one preferred implementation, and this shell fragment 10 comprises one first bullet sheet 20 and the one second bullet sheet 30 that is 7 types respectively.The first bullet sheet comprises a bottom 21 and a junction 22, and bottom 21 is used to be welded to a circuit substrate 40, and an end of 21 is folded to extension to connecting portion 22 from the bottom.The second bullet sheet 30 comprises a contact part 31 and a junction 32, and an end of 31 folds down extension from the contact part for contact part 31 element (figure do not show) that is used to conflict, connecting portion 32.

Please also refer to Fig. 2, the first bullet sheet 20 and the second bullet sheet 30 are connected to each other by connecting portion 22,32.Wherein, the dual-side of connecting portion 32 is folding, thereby forms a pair of chute 33, is used to hold connecting portion 22.The dual-side of connecting portion 22 is formed with pleated sheet 23, one retainers 24 of elastically deformable on the surface near the outstanding connecting portion 22 in 21 places, bottom.

When installing, the first bullet sheet 20 is welded on the circuit substrate 40, again the second bullet sheet 30 is inserted on the first bullet sheet 20, make the chute 33 of the second bullet sheet 30 hold the connecting portion 22 of the first bullet sheet 20, the wall of pleated sheet 23 elasticity conflict chutes 33, the bottom of connecting portion 32 is resisted against on the retainer 24, thereby stops the second bullet sheet 30 to lower slider.At this moment, the first bullet sheet 20 and the second bullet sheet 30 have formed holistic shell fragment 10.

Please refer to Fig. 3, Fig. 4, it has disclosed the electrostatic defending shell fragment 40 of another execution mode of the utility model.This shell fragment 40 comprises that one is the first bullet sheet 50 and second a Z-shaped bullet sheet 60 of U type.The first bullet sheet 50 comprises a bottom 51, one first kink 52 and a junction 53 successively.The dual-side of connecting portion 53 is formed with the pleated sheet 54 of elastically deformable, and upper surface is formed with the retainer 55 of recess.The second bullet sheet 60 comprises a contact part 61, one second kink 62 and a junction 63 successively.The dual-side of connecting portion is folded to form a pair of chute 64, and lower surface is formed with the retainer 65 of convex.

When the first bullet sheet 50 was connected with the second bullet sheet 60, chute 64 held connecting portion 53, the wall of pleated sheet 54 elasticity conflict chutes 64, and retainer 55 and retainer 65 cooperate, and prevent the first bullet sheet 50 and the second bullet sheet, 60 slide relative.

Need to prove that

chute

33,64 can be formed on the first bullet sheet 20,50.Pleated sheet 54 can be formed on the

second bullet sheet

30,60, also can be removed.

Claims

[claim 1] a kind of electrostatic defending shell fragment is characterized in that, comprising:

One first bullet sheet, it comprises that one is used to be welded to the bottom of a circuit substrate, and a junction; And

One second bullet sheet, it comprises that one is used for elasticity the conflict contact part of an element and a junction;

Wherein the dual-side of a junction is folded to form chute, thereby holds another connecting portion;

Wherein, be formed with retainer on the connecting portion, thereby stop bullet sheet slide relative.
[claim 2] electrostatic defending shell fragment as claimed in claim 1 is characterized in that: this dual-side that is housed inside the connecting portion in the chute is formed with pleated sheet, and its elasticity contacts at the wall of chute.
[claim 3] electrostatic defending shell fragment as claimed in claim 1 is characterized in that: the described first bullet sheet and the second bullet sheet are 7 types respectively.
[claim 4] electrostatic defending shell fragment as claimed in claim 1 is characterized in that: the described first bullet sheet is the U type, and the second bullet sheet is Z-shaped.
[claim 5] electrostatic defending shell fragment as claimed in claim 4 is characterized in that: the described first bullet sheet and the second bullet sheet also comprise the kink between bottom, contact part and connecting portion respectively.
[claim 6] electrostatic defending shell fragment as claimed in claim 3, it is characterized in that: described retainer protrudes in the surface of the connecting portion of the first bullet sheet.
[claim 7] electrostatic defending shell fragment as claimed in claim 4 is characterized in that: described retainer is for being formed at depression two connecting portions, that be fitted to each other and projection respectively.