CN206349415U

CN206349415U - Protect firm battery cover board

Info

Publication number: CN206349415U
Application number: CN201621294419.3U
Authority: CN
Inventors: 巩章勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-29
Filing date: 2016-11-29
Publication date: 2017-07-21
Anticipated expiration: 2026-11-29

Abstract

The utility model discloses the firm battery cover board of one kind protection, including substrate, it is provided with the substrate for the pole column hole through pole, the substrate centre position is additionally provided with explosionproof hole, one layer of rupture pressure disc is provided with the explosionproof hole, the surface is provided with the protective cover arched upward upwards of a covering explosionproof hole, and the protective cover is riveted on substrate.The utility model has the advantages that to prevent rupture pressure disc from flying out, it is excessive to slow down electrolyte.

Description

Protect firm battery cover board

Technical field

The utility model is related to battery, more particularly, to it is a kind of can prevent rupture pressure disc from flying out, that to slow down electrolyte excessive is anti- Protect firm battery cover board.

Background technology

Electrokinetic cell is the important component of new energy battery, and its great advantage is that energy is high, pollution-free；It is new energy The developing direction of automobile and energy-accumulating power station, thus the safe performance of battery is particularly important, and the sealing of cover plate of power battery is The important leverage of cell safety.When the abnormality of the battery occurs, normally due to the conductive material inside electrokinetic cell produces chemistry instead Should, huge interior pressure is easily produced inside electrokinetic cell, now, if interior pressure can not discharge in time, is gathering one Determine after degree, electrokinetic cell easily produces blast, brings danger.In order to improve the security of electrokinetic cell, electrokinetic cell is prevented Because interior pressure is excessive and explodes, explosionproof hole can be typically opened up on battery cover board, and is provided with explosionproof hole rupture pressure disc, Existing explosion-proof diaphragm is easily flown out after puncturing outside battery, so that second of destruction can be produced.

The content of the invention

To overcome the shortcoming of prior art, the utility model purpose is that providing one kind can prevent rupture pressure disc from flying out, slowing down The firm battery cover board of the excessive protection of electrolyte.

The utility model realizes that one kind protects firm battery cover board, including substrate, described by following technical measures It is provided with substrate for the pole column hole through pole, the substrate centre position is additionally provided with explosionproof hole, the explosionproof hole One layer of rupture pressure disc is provided with, the surface is provided with the protective cover arched upward upwards of a covering explosionproof hole, the protective cover It is riveted on substrate.

As a kind of preferred embodiment, the periphery of the protective cover is downwardly extending a hook, and the substrate is provided with one The groove of circle matching hook insertion.

As a kind of preferred embodiment, the rupture pressure disc middle part is provided with a circle indentation to recessed at the rupture pressure disc high point.

As a kind of preferred embodiment, protection plastic pad is provided with the pole column hole.

As a kind of preferred embodiment, some hollow outs are provided with the protective cover.

As a kind of preferred embodiment, the substrate is aluminium base.

Because protective cover of the present utility model is riveted on substrate, makes it more firm more resistant to high temperature than welding manner, work as electricity Pond over-heat inside, when high temperature and high pressure gas impact and break up rupture pressure disc, the protective cover being connected firmly on substrate can effectively be prevented Only rupture pressure disc flies out, and can slow down the excessive of electrolyte, so as to avoid producing secondary destruction.The utility model overall structure is simple, Production cost is low, simple production process, and explosion-proof performance is stable, and pressure release uniformity is good, energy safety relief, improves the safety of battery Performance.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the sectional view of the utility model embodiment.

Fig. 3 is the section view comparison diagram before and after the utility model embodiment is riveted.

Fig. 4 is the section view comparison diagram before and after another embodiment riveting of the utility model.

Embodiment

With reference to embodiment and compare accompanying drawing the utility model is described in further detail.

The firm battery cover board of one kind protection, referring to figs. 1 to Fig. 3, including substrate 1, is provided with for wearing on the substrate 1 Cross the pole column hole 2 of pole, the centre position of substrate 1 be additionally provided with explosionproof hole 6, the explosionproof hole 6 be provided with one layer it is explosion-proof Film 7, the top of substrate 1 is provided with the protective cover 5 arched upward upwards of a covering explosionproof hole 6, and the protective cover 5 is riveted on substrate On 1.

Because the protective cover 5 of this battery cover board is riveted on substrate 1, make its high temperature more bad than welding manner more firm, when Inside battery is overheated, and when high temperature and high pressure gas impact and break up rupture pressure disc 7, the protective cover 5 being connected firmly on substrate 1 can have Effect prevents rupture pressure disc 7 from flying out, and can slow down the excessive of electrolyte, so as to avoid producing secondary destruction.Overall structure is simple, is produced into This low, simple production process, explosion-proof performance is stable, and pressure release uniformity is good, energy safety relief, improves the security performance of battery.

In the present embodiment, with reference to Fig. 3, on the basis of previous technique scheme specifically it is also possible that the middle part of rupture pressure disc 7 to It is recessed, a circle indentation 8 is provided with the high point of rupture pressure disc 7, just rupture pressure disc 7 ruptures at indentation 8 when needed.

In the present embodiment, with reference to Fig. 1 and Fig. 2, specifically it is also possible that pole column hole 2 on the basis of previous technique scheme On be provided with protection plastic pad 3.

In the present embodiment, with reference to Fig. 1, specifically it is also possible that being set on protective cover 5 on the basis of previous technique scheme There are some hollow outs, allow gas to quick discharge.

In the present embodiment, specifically it is also possible that substrate 1 is aluminium base on the basis of previous technique scheme.

It is specific on the basis of previous technique scheme with reference to Fig. 4 in the embodiment of another firm battery cover board of protection It is also possible that the periphery of protective cover 5 be downwardly extending on a hook 9, the substrate 1 be provided with a circle matching hook 9 insert Groove 10 so that protective cover 5 connects more firm on substrate 1.

Above is protecting firm battery cover board to be set forth the utility model, it is used to help understand that this practicality is new Type, but embodiment of the present utility model and be not restricted to the described embodiments, institute under any principle without departing from the utility model Change, modification, replacement, combination, the simplification of work, should be equivalent substitute mode, are included in protection model of the present utility model Within enclosing.

Claims

1. the firm battery cover board of one kind protection, it is characterised in that：Including substrate, being provided with the substrate is used for through pole Pole column hole, the substrate centre position, which is additionally provided with explosionproof hole, the explosionproof hole, is provided with one layer of rupture pressure disc, the substrate Top is provided with the protective cover arched upward upwards of a covering explosionproof hole, and the protective cover is riveted on substrate.

2. the firm battery cover board of protection according to claim 1, it is characterised in that：The periphery of the protective cover is to downward Stretch to form a hook, the substrate is provided with the groove of circle matching hook insertion.

3. the firm battery cover board of protection according to claim 1 or 2, it is characterised in that：In the middle part of the rupture pressure disc downwards It is recessed, a circle indentation is provided with the rupture pressure disc high point.

4. the firm battery cover board of protection according to claim 1 or 2, it is characterised in that：It is provided with the pole column hole Protect plastic pad.

5. the firm battery cover board of protection according to claim 1 or 2, it is characterised in that：It is provided with the protective cover Some hollow outs.

6. the firm battery cover board of protection according to claim 1 or 2, it is characterised in that：The substrate is aluminium base.