CN204315652U - A kind of accumulator box explosion-proof valve - Google Patents
A kind of accumulator box explosion-proof valve Download PDFInfo
- Publication number
- CN204315652U CN204315652U CN201420756004.8U CN201420756004U CN204315652U CN 204315652 U CN204315652 U CN 204315652U CN 201420756004 U CN201420756004 U CN 201420756004U CN 204315652 U CN204315652 U CN 204315652U
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- pressure
- envelope
- spool
- envelope nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
- Safety Valves (AREA)
Abstract
The utility model provides a kind of accumulator box explosion-proof valve, comprise valve seat, described valve seat inside is provided with pressure releasing valve core, be provided with in described pressure releasing valve core and be communicated with inside and outside spatial accommodation, envelope nitrogen spool is provided with in described spatial accommodation, pressure release spring is provided with between described pressure releasing valve core and valve seat, described envelope nitrogen spool is fixed on pressure releasing valve core by the first back-up ring, and envelope nitrogen spring housing is on envelope nitrogen spool, and fixed by the first back-up ring, described valve seat side is provided with the through hole be communicated with spatial accommodation, is distributed with pressure relief opening around described through hole.The beneficial effects of the utility model are: structure is simple, seal nitrogen, pressure release is dual-purpose.
Description
Technical field
The utility model belongs to battery technology field, especially relates to a kind of accumulator box explosion-proof valve.
Background technology
Vehicle lithium battery is under the overall situation of development, how the use battery of better and safer, the useful life of battery can be improved again, need to be badly in need of promoting to the protection of battery, accomplish dustproof and waterproof rank: IP65, battery can be worked in a desirable environment, and battery can produce pernicious gas when discharge and recharge, with oxygen, easily potential safety hazard is there is after mix dust, steam can affect battery simultaneously, at this moment an accumulator box that effectively can protect battery is needed, though the accumulator box of effective protection battery can solve above-mentioned protection, but the temperature produced time battery operated is under steep temperature rise, potential safety hazard can be produced equally.
Summary of the invention
The purpose of this utility model is solve existing issue, provides a kind of structure simple, the accumulator box explosion-proof valve that envelope nitrogen, pressure release are dual-purpose.
The technical solution of the utility model is: a kind of accumulator box explosion-proof valve, comprise valve seat, described valve seat inside is provided with pressure releasing valve core, be provided with in described pressure releasing valve core and be communicated with inside and outside spatial accommodation, envelope nitrogen spool is provided with in described spatial accommodation, pressure release spring is provided with between described pressure releasing valve core and valve seat, described envelope nitrogen spool is fixed on pressure releasing valve core by the first back-up ring, and envelope nitrogen spring housing is on envelope nitrogen spool, and fixed by the first back-up ring, described valve seat side is provided with the through hole be communicated with spatial accommodation, is distributed with pressure relief opening around described through hole.
Further, described valve seat side surface is provided with screw thread.
Further, on described pressure releasing valve core, cover has pressure release sealing gasket, and is fixed by the second back-up ring.
Further, described envelope nitrogen valve core upper sleeve has envelope nitrogen sealing gasket, and described envelope nitrogen sealing gasket is by the fixing clamping of buckle on envelope nitrogen spool.
The advantage that the utility model has and good effect are:
Envelope nitrogen valve and relief valve are designed to one, save installing space and manufacturing cost, utilize the active force of atmospheric pressure and spring and reaction force principle to carry out work simultaneously, can fast the pressure of temperature transition time battery operated be got rid of outside storage battery, avoid potential safety hazard, improve the useful life of battery.
Accompanying drawing explanation
Fig. 1 is partial sectional view of the present utility model
Fig. 2 is mounting structure schematic diagram of the present utility model
In figure:
| 1, valve seat | 2, pressure releasing valve core | 3, nitrogen spool is sealed |
| 4, pressure release spring | 5, the first back-up ring | 6, nitrogen spring is sealed |
| 7, through hole | 8, pressure relief opening | 9, pressure release sealing gasket |
| 10, the second back-up ring | 11, nitrogen sealing gasket is sealed | 12, buckle |
Embodiment
As shown in Figure 1-2, the technical solution of the utility model is: a kind of accumulator box explosion-proof valve, comprise valve seat 1, described valve seat 1 inside is provided with pressure releasing valve core 2, be provided with in described pressure releasing valve core 2 and be communicated with inside and outside spatial accommodation, envelope nitrogen spool 3 is provided with in described spatial accommodation, pressure release spring 4 is provided with between described pressure releasing valve core 2 and valve seat 1, described envelope nitrogen spool 3 is fixed on pressure releasing valve core 2 by the first back-up ring 5, and envelope nitrogen spring 6 is enclosed within envelope nitrogen spool 3, and fixed by the first back-up ring 5, described valve seat 1 side is provided with the through hole 7 be communicated with spatial accommodation, pressure relief opening 8 is distributed with around described through hole 7.
In the present embodiment, described valve seat 1 side surface is provided with screw thread, and on described pressure releasing valve core 2, cover has pressure release sealing gasket 9, and is fixed by the second back-up ring 10, on described envelope nitrogen spool 6, cover has envelope nitrogen sealing gasket 11, and described envelope nitrogen sealing gasket 11 is by the fixing clamping of buckle 12 on envelope nitrogen spool 3.
The course of work of this example:
Envelope nitrogen spool 3 is pressed together by buckle 12 with envelope nitrogen sealing gasket 11, form an assembly, by envelope nitrogen spring 6 and the first back-up ring 5, envelope nitrogen core assembly and envelope nitrogen spring 6 are fixed in pressure releasing valve core 2 again, pressure release sealing gasket 9 is fixed on pressure releasing valve core 2 by the second back-up ring 10, pressure releasing valve core 2 and the interface arrangment of valve seat 1 by self, pressure release spring 4 is pressed into centre, and the dual-purpose releasing pressure automatically explosion-proof valve of envelope nitrogen, pressure release adopts with accumulator box and is threaded, and tightens by six pressure relief openings 8.
Electric motor car battery core module is arranged on degree of protection in the accumulator box of IP65, assembling battery core module is carried out in atmosphere, casing can retain certain oxygen and steam, after the temperature of battery operated generation and oxygen mix, easily potential safety hazard occurs, steam can affect battery life simultaneously, at this moment need the evacuating air in casing to reinject nitrogen, envelope nitrogen spool 3 backs down by envelope nitrogen via through holes 7, and nitrogen enters casing by valve port, is got rid of by pressure during pressure height by pressure relief opening 8.
Envelope nitrogen, pressure release dual-purpose one releasing pressure automatically explosion-proof valve, possess envelope nitrogen and the dual of pressure release more can, only envelope nitrogen spool 3 need be backed down with thimble when finding time to seal nitrogen, air is extracted out, when finding time, ambient pressure is greater than case internal pressure, relief valve is subject to the effect of atmospheric pressure and pressure release spring 4, and coordinated closely with casing by pressure release sealing gasket 9, air cannot enter in casing.
During envelope nitrogen, relief valve is by the active force of pressure release spring 4, equally pressure release sealing gasket 9 is coordinated closely with casing, by the envelope nitrogen quantity of setting, nitrogen is enclosed casing, by case internal pressure and envelope nitrogen spring 6, envelope nitrogen spool 3, envelope nitrogen sealing gasket 11 are sealed with pressure releasing valve core 2 after envelope nitrogen.
When battery operated, temperature raises and converts pressure to, case internal pressure is greater than pressure release spring force, case internal pressure is got rid of accumulator box from the pressure relief opening 8 of valve seat 1 by case internal pressure, envelope nitrogen valve now links together with relief valve, the envelope nitrogen valve moment plays and stops extraneous air and enter in casing, when case internal pressure is less than pressure release spring 4 pressure, by pressure release spring 4 elastic force, relief valve cuts out.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (4)
1. an accumulator box explosion-proof valve, comprise valve seat, it is characterized in that: described valve seat inside is provided with pressure releasing valve core, be provided with in described pressure releasing valve core and be communicated with inside and outside spatial accommodation, envelope nitrogen spool is provided with in described spatial accommodation, pressure release spring is provided with between described pressure releasing valve core and valve seat, described envelope nitrogen spool is fixed on pressure releasing valve core by the first back-up ring, and envelope nitrogen spring housing is on envelope nitrogen spool, and fixed by the first back-up ring, described valve seat side is provided with the through hole be communicated with spatial accommodation, is distributed with pressure relief opening around described through hole.
2. a kind of accumulator box explosion-proof valve according to claim 1, is characterized in that: on described pressure releasing valve core, cover has pressure release sealing gasket, and is fixed by the second back-up ring.
3. a kind of accumulator box explosion-proof valve according to claim 1, is characterized in that: described envelope nitrogen valve core upper sleeve has envelope nitrogen sealing gasket, and described envelope nitrogen sealing gasket is by the fixing clamping of buckle on envelope nitrogen spool.
4. a kind of accumulator box explosion-proof valve according to claim 1, is characterized in that: described valve seat side surface is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420756004.8U CN204315652U (en) | 2014-12-05 | 2014-12-05 | A kind of accumulator box explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420756004.8U CN204315652U (en) | 2014-12-05 | 2014-12-05 | A kind of accumulator box explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204315652U true CN204315652U (en) | 2015-05-06 |
Family
ID=53137953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420756004.8U Expired - Fee Related CN204315652U (en) | 2014-12-05 | 2014-12-05 | A kind of accumulator box explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204315652U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958675A (en) * | 2017-03-30 | 2017-07-18 | 惠州市沃瑞科技有限公司 | A kind of body structure formula waterproof and breathable explosion-proof valve |
| CN108598333A (en) * | 2018-04-12 | 2018-09-28 | 珠海中能科技有限公司 | Explosion-proof valve and battery system |
-
2014
- 2014-12-05 CN CN201420756004.8U patent/CN204315652U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958675A (en) * | 2017-03-30 | 2017-07-18 | 惠州市沃瑞科技有限公司 | A kind of body structure formula waterproof and breathable explosion-proof valve |
| CN108598333A (en) * | 2018-04-12 | 2018-09-28 | 珠海中能科技有限公司 | Explosion-proof valve and battery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |