CN205159379U

CN205159379U - Improve conductive contact nature and blast proof button cell

Info

Publication number: CN205159379U
Application number: CN201520906976.5U
Authority: CN
Inventors: 黄理博
Original assignee: DONGGUAN TIANQIU ENTERPRISE Co Ltd
Current assignee: DONGGUAN TIANQIU ENTERPRISE Co Ltd
Priority date: 2015-11-12
Filing date: 2015-11-12
Publication date: 2016-04-13
Anticipated expiration: 2025-11-12

Abstract

The utility model provides an improve conductive contact nature and blast proof button cell, cover including anodal shell and with anodal shell complex negative pole, the holding has positive polar body in the anodal shell, the holding has the negative pole body in the negative pole lid, be equipped with the diaphragm between the positive polar body and the negative pole body, the negative pole is covered the surface and is formed with a plurality of rough and uneven in surface nets. The utility model discloses improve conductive contact nature and blast proof button cell becomes rough and uneven in surface grid structure through cover the surface design at the negative pole, guarantees button cell's electric conductivity, secondly, improve the tension on button cell negative pole lid surface, prevent that button cell from producing the deformation and blasting.

Description

A kind ofly improve conductive contact and explosion-proof button cell

Technical field

The utility model relates to and a kind ofly improves conductive contact and explosion-proof button cell.

Background technology

Button cell is the power supply of miniature electronic product, the more common employing planar structure of negative cover of button cell, when there is a small amount of dirty poor thing on negative cover surface, very easily occurs the situation that conduction is bad between battery and battery or between battery and the contact chip of electrical appliance; Secondly, in use, negative cover surface tension is poor for button cell, when being subject to the pressure of button cell inside generation, being easily out of shape and blasting.

Summary of the invention

In view of the above, the utility model is necessary that providing a kind of improves conductive contact and explosion-proof button cell.

The technical scheme that the utility model provides is as follows: a kind ofly improve conductive contact and explosion-proof button cell, the negative cover comprising positive pole shell and coordinate with positive pole shell, positive pole body is equipped with in described positive pole shell, negative electrode is equipped with in described negative cover, be provided with barrier film between described positive polar body and negative electrode, described negative cover upper surface is formed with some scraggly grids.

Further, described grid is diamond structure, and the face of rhombus is protruding, and the limit of rhombus is groove.

Further, the difference in height that the face of described rhombus and the limit of rhombus are formed is 0.2mm to 0.4mm.

Further, described negative cover comprises roof and is connected to roof periphery and to the perisporium of downward-extension, and surrounds the negative pole containing cavity of accommodating described negative electrode accordingly.

Further, described negative cover is arranged on positive pole shell upper end, and the perisporium of described negative cover stretches in positive pole shell, and is formed with gap between the perisporium of negative cover and positive pole case peripheral wall, and described gap location is equipped with O-ring seal.

Further, described perisporium is secondary hierarchic structure and the joint angle place of hierarchic structure passes through arc transition.

Further, on lateral, a circle holding wall has been bent to form bottom described perisporium.

Compared with prior art, the utility model improves conductive contact and explosion-proof button cell by being designed to scraggly network at negative cover upper surface, the conductivity of guarantee button cell; Secondly, improve the tension force on button battery cathode cap surface, prevent button cell from producing distortion and blasting.

Accompanying drawing explanation

Fig. 1 is that the utility model improves conductive contact and the three-dimensional view of explosion-proof button cell;

Fig. 2 is that the utility model improves conductive contact and the half sectional view of explosion-proof button cell;

Fig. 3 is that the utility model improves conductive contact and the half sectional view of the negative cover of explosion-proof button cell.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually, below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.

Refer to Fig. 1 and Fig. 2, a kind ofly improve conductive contact and explosion-proof button cell, the negative cover 20 comprising positive pole shell 10 and coordinate with positive pole shell 10.

Positive pole shell 10 is made up of stainless steel material, and positive pole shell 10 is the tubular structure of bottom end closure, upper end open, inner hollow out, and positive pole shell 10 top circumference is slightly bending to the inside.Positive pole shell 10 is surrounded by positive pole containing cavity, and the bottom of positive pole containing cavity is equipped with positive polar body 11 and electrolyte.

Negative cover 20 adopts copper sheet to make, and it is arranged on the openend of positive pole shell 10.Refer to Fig. 3, negative cover 20 comprises roof 22 and is connected to roof 22 periphery and to the perisporium 23 of downward-extension, and surrounds a negative pole containing cavity accordingly, is equipped with negative electrode 21 in negative pole containing cavity.

Please again consult Fig. 1, the upper surface of roof 22 is formed with some scraggly grids 221, in order to ensure the conductivity that button cell is good, and improves the tension force on negative cover 20 surface.In the present embodiment, grid 221 is diamond structure, and the face of rhombus is protruding, and the limit of rhombus is groove.Particularly, the difference in height that the face of rhombus and the limit of rhombus are formed is 0.2-0.4mm.Preferably, the difference in height that the face of rhombus and the limit of rhombus are formed is 0.3mm.Be appreciated that grid 221 may be selected to be the bump structure of irregular distribution.

Perisporium 23 in secondary hierarchic structure, preferably, the joint angle place of secondary ladder by arc transition, appearance looks elegant and be beneficial to the assembling of negative cover 20 and positive pole shell 10.On lateral, a circle holding wall 231 has been bent to form, in order to strengthen sealing and the explosion-proof of button cell bottom perisporium 23.

Please again consult Fig. 2, between positive polar body 11 and negative electrode 21, be provided with barrier film 30, in order to positive polar body 11 is separated with negative electrode 21.

Negative cover 20 is arranged on positive pole shell 10 upper end, the perisporium 23 of negative cover 20 stretches in the positive pole containing cavity of positive pole shell 10, and be formed with gap between negative cover 20 perisporium 23 and positive pole shell 10 perisporium, described gap location is equipped with O-ring seal 40, in order to negative cover 20 and positive pole shell 10 to be sealed.

During use, by this raising conductive contact and the positive pole shell 10 of explosion-proof button cell, negative cover 20 be connected with the contact chip of electrical appliance respectively, for electrical appliance is powered.When this raising conductive contact and there is a small amount of dirty poor thing on negative cover 20 surface of explosion-proof button cell time, dirty poor thing can drop in the limit of the rhombus of the groove-like of negative cover 20 upper surface, keep the face of the rhombus of the convex of negative cover 20 upper surface clean, do not affect its conductivity; Secondly, be designed to the structure on the lozenge of convex and the rhombus limit of groove-like by negative cover 20 upper surface, change the tension force on button battery cathode cap 20 surface, when the negative cover 20 of button cell is subject to the inner pressure produced, can not deforms and explode.

In sum, the utility model improves conductive contact and explosion-proof button cell by being designed to scraggly network at negative cover upper surface, can bear dirty, the conductivity of guarantee button cell; Also can change the tension force on button battery cathode cap surface, the pressure not being subject to the generation of button cell inside deforms and explodes.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. one kind is improved conductive contact and explosion-proof button cell, the negative cover (20) comprising positive pole shell (10) and coordinate with positive pole shell (10), positive pole body (11) is equipped with in described positive pole shell (10), negative electrode (21) is equipped with in described negative cover (20), be provided with barrier film (30) between described positive polar body (11) and negative electrode (21), it is characterized in that: described negative cover (20) upper surface is formed with some scraggly grids (221).

2. raising conductive contact according to claim 1 and explosion-proof button cell, is characterized in that: described grid (221) is diamond structure, and the face of rhombus is protruding, and the limit of rhombus is groove.

3. raising conductive contact according to claim 2 and explosion-proof button cell, is characterized in that: described in, the difference in height that the face of described rhombus and the limit of rhombus are formed is 0.2mm to 0.4mm.

4. raising conductive contact according to claim 1 and explosion-proof button cell, it is characterized in that: described negative cover (20) comprises roof (22) and is connected to roof (22) periphery and to the perisporium (23) of downward-extension, and surrounds the negative pole containing cavity of accommodating described negative electrode (21) accordingly.

5. raising conductive contact according to claim 4 and explosion-proof button cell, it is characterized in that: described negative cover (20) is arranged on positive pole shell (10) upper end, the perisporium (23) of described negative cover (20) stretches in positive pole shell (10), and being formed with gap between the perisporium (23) of negative cover (20) and positive pole shell (10) perisporium, described gap location is equipped with O-ring seal (40).

6. raising conductive contact according to claim 4 and explosion-proof button cell, is characterized in that: described perisporium (23) is in secondary hierarchic structure and the joint angle place of hierarchic structure passes through arc transition.

7. raising conductive contact according to claim 5 and explosion-proof button cell, is characterized in that: described perisporium (23) bottom has been bent to form a circle holding wall (231) on lateral.