CN201804935U - Battery safety valve - Google Patents
Battery safety valve Download PDFInfo
- Publication number
- CN201804935U CN201804935U CN2010202798973U CN201020279897U CN201804935U CN 201804935 U CN201804935 U CN 201804935U CN 2010202798973 U CN2010202798973 U CN 2010202798973U CN 201020279897 U CN201020279897 U CN 201020279897U CN 201804935 U CN201804935 U CN 201804935U
- Authority
- CN
- China
- Prior art keywords
- battery
- safety valve
- sleeve
- battery safety
- plug
- 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 - Lifetime
Links
Images
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)
Abstract
The utility model discloses a battery safety valve assembled on an explosion-proof hole of a battery top cover; and the battery safety valve comprises a sleeve and a rubber plug assembled in the sleeve, wherein the shape of the rubber plug is fitted with that of the sleeve, and the sleeve is sealed through the rubber plug under the static friction between the inner wall of the sleeve and the rubber plug. Compared with the prior art, the battery safety valve has a simple structure, is secure and reliable and convenient for quality detection.
Description
Technical field
The utility model belongs to electrical network energy storage, UPS, electric automobiles, relates in particular to a kind of energy-storage system, electric vehicle battery safety valve.
Background technology
At present, in order to ensure security performance, energy-storage system, electric vehicle system are typically provided with safety valve with battery.Safety valve is the weak link in the battery structure, and when the air pressure of inside battery was increased to certain value, safety valve can be opened disappointing automatically, prevents that battery from blasting.
The agent structure of existing battery safety valve is generally the film that one or more layers has certain intensity, and film can be a metal film, also can be nonmetal films such as plastic film.But because corrosion, the life-span of metallic film generally is restricted, and battery is difficult to long-time use, and the reliability of safety valve is difficult to guarantee; If the employing plastic film then exists and is difficult to take into account the intensity of plastic film and the problem of modulus, the sealing property of plastic film also is difficult to guarantee.Therefore, all ubiquity complex structure, manufacturing cost height and the insecure problem of fail safe of existing battery safety valve.
In view of this, necessaryly provide a kind of simple in structure and safe and reliable battery safety valve.
The utility model content
The utility model purpose is: a kind of simple in structure and safe and reliable battery safety valve is provided.
To achieve these goals, the utility model provides a kind of battery safety valve, can be installed on the explosionproof hole of battery cap, and it is provided with sleeve and the plug that is installed in the sleeve, the shape of plug and the shape of sleeve are adaptive, and plug is by the stiction seal sleeve between sleeve lining and the plug.
With respect to prior art, the utility model battery safety valve has following useful technique effect at least: at first, simple in structure, manufacturing is easy and cost is low; Secondly, safe and reliable, long service life; At last, make things convenient for quality testing.
As a kind of improvement of the utility model battery safety valve, described sleeve is one-body molded by die casting mode and described battery cap.
As a kind of improvement of the utility model battery safety valve, described sleeve is linked to be the integral body of sealing by welding manner and described battery cap.
As a kind of improvement of the utility model battery safety valve, the stiction between described plug and the described sleeve lining and the burst pressure of battery are suitable.
As a kind of improvement of the utility model battery safety valve, be extended with positive terminal and negative terminal on the described battery cap, described battery safety valve is arranged between positive terminal and the negative terminal.
As a kind of improvement of the utility model battery safety valve, the sidewall of described sleeve is provided with the steam vent towards negative terminal.
Description of drawings
Below in conjunction with the drawings and specific embodiments, describe the utility model battery safety valve and useful technique effect thereof in detail, wherein:
Figure 1 shows that the structural representation of the battery that the utility model battery safety valve is installed.
Embodiment
See also shown in Figure 1ly, the utility model battery safety valve 10 is installed on the battery cap 20 of energy-storage system or battery of electric vehicle, in order to improve the security performance of battery.
Energy-storage system or battery of electric vehicle comprise housing 30, are contained in the battery (not shown) in the housing 30, and seal group is connected to the battery cap 20 on the housing 30.In illustrated embodiment, battery cap 20 is to be made by metal material.Battery is provided with positive terminal 40 and negative terminal 50, and positive terminal 40 and negative terminal 50 all extend battery cap 20.
The inwall densification of sleeve 70 wherein is equiped with the plug 80 that is complementary with sleeve 70 shape and size, and plug 80 is preferably made by the material of electrolyte resistance corrosion.Plug 80 has certain modulus of elasticity, can produce stress during deformation, and makes and produce stiction between the inwall of plug 80 and sleeve 70.
When plug 80 is filled in sleeve 70, produce stiction between the inwall of plug 80 outer surfaces and sleeve 70, stiction can calculate according to the burst pressure of battery to be determined, promptly converses static friction by the maximum burst pressure of battery and the cross-sectional area of plug 80.Have good sealing property between plug 80 and the sleeve 70, before explosion, should keep the gas of inside battery and liquid that can not to leak.
Sleeve 70 is provided with steam vent 702 towards negative terminal 50 1 sides, flows in order to guiding gas.When the air pressure of inside battery was enough to back down plug 80, gas can be discharged from steam vent 702, avoided the high positive terminal of gas flow heat 40 and caused burning.
When battery was in normal operating conditions, the pressure of inside battery at this moment, relied on the stiction between sleeve 70 and the plug 80 less than the stiction between sleeve 70 and the plug 80, and inside battery and outside seal are isolated.When the pressure of inside battery met or exceeded stiction between sleeve 70 and the plug 80, plug 80 can be backed down, and the gas pressure of inside battery is released, security incident such as therefore can prevent that battery from blasting.
In conjunction with above-mentioned description to the utility model battery safety valve 10 as can be seen, with respect to prior art, the utility model battery safety valve 10 is simple in structure, safe and reliable, and quality testing is convenient, at ordinary times can visual examination, pick out abnormal products such as breakage.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the utility model just for convenience of description.
Claims (6)
1. battery safety valve, can be installed on the explosionproof hole of battery cap, it is characterized in that: described battery safety valve is provided with sleeve and the plug that is installed in the sleeve, and the shape of plug and the shape of sleeve are adaptive, and plug is by the stiction seal sleeve between sleeve lining and the plug.
2. battery safety valve according to claim 1 is characterized in that: described sleeve is one-body molded by die casting and described battery cap.
3. battery safety valve according to claim 1 is characterized in that: described sleeve is linked to be the integral body of sealing by welding and described battery cap.
4. battery safety valve according to claim 1 is characterized in that: the stiction between described plug and the described sleeve lining and the burst pressure of battery are suitable.
5. battery safety valve according to claim 1 is characterized in that: be extended with positive terminal and negative terminal on the described battery cap, described battery safety valve is arranged between positive terminal and the negative terminal.
6. battery safety valve according to claim 5 is characterized in that: the sidewall of described sleeve is provided with the steam vent towards negative terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202798973U CN201804935U (en) | 2010-07-27 | 2010-07-27 | Battery safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202798973U CN201804935U (en) | 2010-07-27 | 2010-07-27 | Battery safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804935U true CN201804935U (en) | 2011-04-20 |
Family
ID=43874438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202798973U Expired - Lifetime CN201804935U (en) | 2010-07-27 | 2010-07-27 | Battery safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804935U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383995A (en) * | 2013-07-29 | 2013-11-06 | 宁波慧通新能源科技有限公司 | Anti-explosion battery |
| WO2016008136A1 (en) * | 2014-07-15 | 2016-01-21 | 惠州威健锂能电子有限公司 | Disposable lithium-ion battery having heat-shrinkable plastic film outer casing, and method for manufacturing same |
| CN111192990A (en) * | 2020-01-23 | 2020-05-22 | 星恒电源股份有限公司 | Safety valve structure for lithium battery |
-
2010
- 2010-07-27 CN CN2010202798973U patent/CN201804935U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383995A (en) * | 2013-07-29 | 2013-11-06 | 宁波慧通新能源科技有限公司 | Anti-explosion battery |
| CN103383995B (en) * | 2013-07-29 | 2016-01-20 | 宁波慧通新能源科技有限公司 | Anti-explosion battery |
| WO2016008136A1 (en) * | 2014-07-15 | 2016-01-21 | 惠州威健锂能电子有限公司 | Disposable lithium-ion battery having heat-shrinkable plastic film outer casing, and method for manufacturing same |
| CN111192990A (en) * | 2020-01-23 | 2020-05-22 | 星恒电源股份有限公司 | Safety valve structure for lithium battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| HK1102649A1 (en) | Housing for a sealed electrochemical battery cell | |
| JP3173575U (en) | Lithium-ion battery module structure | |
| JP2005514730A5 (en) | ||
| CN201436692U (en) | Cylindrical lithium secondary cell cap component and cell using the cap component | |
| CN205657091U (en) | Secondary cell and casing thereof | |
| CN103280545B (en) | Deep-water battery box | |
| CN102324479A (en) | Anti-explosion valve for power lithium ion battery | |
| CN107432498A (en) | Safety-type soft bag lithium ionic cell and electronic cigarette | |
| CN201804935U (en) | Battery safety valve | |
| CN104716280A (en) | Cylindrical lithium ion battery cover plate, cylindrical lithium ion battery and production method of cylindrical lithium ion battery | |
| CN201868519U (en) | Lithium ion battery with hard shell | |
| CN102903866B (en) | Lithium ion battery | |
| CN2904308Y (en) | Safety explosion-proof hard case lithium ion secondary battery | |
| CN208507742U (en) | A kind of battery cover board and the battery using the battery cover board | |
| CN204391167U (en) | Cylindricality lithium ion battery | |
| CN102074671B (en) | Explosion protection for batteries | |
| CN104485488B (en) | One can maintenance type lithium battery | |
| CN2922138Y (en) | Safe explosion-proof hard case lithium ion secondary cell case | |
| CN202142596U (en) | Bidirectional safety valve | |
| CN202749426U (en) | Aluminum soldering integration type-cylinder aluminum shell battery anti-explosion combination cover plate | |
| CN204391164U (en) | Cylindricality casing of lithium ion battery | |
| CN201478362U (en) | Combined cover cap anti-explosion device of lithium ion battery | |
| CN208889708U (en) | Lithium ion battery cover and lithium ion battery | |
| CN209859986U (en) | Storage battery capable of preventing liquid on inner side from flowing out | |
| CN203826460U (en) | Explosion-proof pressure-relief structure of lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
|
| CX01 | Expiry of patent term |