CN205657092U - A explosion -proof cover structure for button cell - Google Patents

Abstract

The utility model provides an explosion -proof cover structure for button cell, the lid that at casing top be used for electrically conduct is formed including casing and integrative, the lid upper surface is formed with rough and uneven in surface site. The utility model discloses an explosion -proof cover structure for button cell passes through casing and the integrated structural design of lid, and is formed with rough and uneven in surface site at the lid upper surface, guarantees button cell's electric conductivity, secondly, improve the tension on button cell negative pole surface, prevent that button cell from producing the deformation and blasting.

Description

A kind of anti-explosion cover structure for button cell

Technical field

This utility model relates to a kind of anti-explosion cover structure for button cell.

Background technology

Button cell is the back-up source of miniature type electronic product, and current battery cathode lid uses planar structure, When battery surface has a small amount of dirty grain thing, between battery and battery or the compole of battery and the contact chip of electrical appliance The situation bad because polluting generation conduction easily occurs；Secondly, button cell in use, negative cover table Surface tension is poor, by produce inside button cell pressure time, be easily deformed and explode.

Summary of the invention

In view of the above, this utility model is necessary to provide one to conduct electricity very well, prevent button cell from deforming The anti-explosion cover structure for button cell.

The technical scheme that this utility model provides is as follows: a kind of anti-explosion cover structure for button cell, including shell Body and be integrally formed in case top in order to the lid conducted electricity, described lid upper surface is formed rough and uneven in surface Site.

Further, described site is diamond structure, and the face of rhombus is convex shape structure, and the limit of rhombus is groove Shape structure.

Further, described housing bottom outwards bends and is formed with a circle holding wall, described holding wall and housing it Between be formed with gap.

Further, described housing is step structure, and the high spot of ladder is cabochon structure.

Compared with prior art, this utility model passes through housing and lid one for the anti-explosion cover structure of button cell The structure design of body, and it is formed with scraggly site at lid upper surface, it is ensured that leading of button cell Electrically；Secondly, improve the tension force on button battery cathode surface, prevent button cell to be deformed and occur quick-fried Fried.

Accompanying drawing explanation

Fig. 1 is this utility model three-dimensional view for the anti-explosion cover structure of button cell；

Fig. 2 is this utility model half sectional view for the anti-explosion cover structure of button cell；

Fig. 3 is the topology view of button cell.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical scheme in this utility model embodiment It is clearly and completely described, it is clear that described embodiment is only that this utility model part is implemented Example rather than whole embodiments, in the case of not conflicting, in embodiment in the application and embodiment Feature can be mutually combined, describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Referring to Fig. 1-Fig. 2, a kind of anti-explosion cover structure for button cell, including housing 10 and one It is formed at housing 10 top in order to the lid 20 conducted electricity.

Referring to Fig. 3, button cell 30 is the prismatic battery that the big thickness of diameter is thin, and size is as a little button. The appearance of button cell 30 is that stainless steel material is made, whole and surrounding be with together with as positive pole 31, Having word at positive pole 31, the rustless steel circular lid that be located in surrounding is negative pole 32, detains between positive pole 31 and negative pole 32 Sealing ring is had to insulate.

Housing 10 be located on the negative pole 32 of button cell 30, specifically, and housing 10 inside diameter and button Battery 30 external diameter is suitable, and the height of housing 10 is suitable with the thickness of button cell 30, refers to Fig. 2, shell Body 10 is step structure, and the high spot of ladder is cabochon structure.

Bottom housing 10, outwards bending is formed with a circle holding wall 11, it is simple to this is used for the explosion-proof knot of button cell Picking and placeing of structure, is formed with gap between holding wall 11 and housing 10.

Described lid 20 and button battery cathode 32 upper surface, in order to conduct electricity, specifically, lid 20 Copper sheet for thickness 0.3mm is made, and referring to Fig. 1, lid 20 upper surface is formed scraggly Site 21, in order to improve the tension force on button battery cathode 32 surface, prevent button cell 30 to be deformed and Exploding, in the present embodiment, site 21 is diamond structure, and the face of rhombus is convex shape structure, rhombus While be groove-like structure.

During use, housing 10 is located on the negative pole 32 of button cell 30, and lid 20 and button cell The upper surface of negative pole 32, when powering for miniature type electronic product.When the blast resistance construction for button cell When there is a small amount of dirty grain thing on surface, dirty grain thing can drop in the limit of the rhombus of the groove-like of lid 20 upper surface, The face keeping the rhombus of the convex shape of lid 20 upper surface is clean, does not affect its electric conductivity, secondly, improves button The tension force on button battery cathode 32 surface, during the pressure that the negative pole 32 of button cell 30 is produced by inside, no Can be deformed and explode.

In sum, this utility model is integrated with lid by housing for the anti-explosion cover structure of button cell Structure designs, and is formed with scraggly site at lid upper surface, it is ensured that the electric conductivity of button cell； Secondly, improve the tension force on button battery cathode surface, prevent button cell to be deformed and explode.

The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, Every equivalent structure utilizing this utility model description to be made or equivalence flow process conversion, or directly or Connect and be used in other relevant technical fields, be the most in like manner included in scope of patent protection of the present utility model.

Claims (4)

1. the anti-explosion cover structure for button cell, it is characterised in that: include housing (10) and Body is formed at housing (10) top and is formed in order to the lid (20) conducted electricity, described lid (20) upper surface Scraggly site (21).

Anti-explosion cover structure for button cell the most according to claim 1, it is characterised in that: described Site (21) is diamond structure, and the face of rhombus is convex shape structure, and the limit of rhombus is groove-like structure.

Anti-explosion cover structure for button cell the most according to claim 1, it is characterised in that: described The outwards bending of housing (10) bottom is formed with a circle holding wall (11), described holding wall (11) and housing (10) Between be formed with gap.

Anti-explosion cover structure for button cell the most according to claim 1, it is characterised in that: described Housing (10) is step structure, and the high spot of ladder is cabochon structure.