CN203553251U - Battery anti-explosion pressure relief structure - Google Patents
Battery anti-explosion pressure relief structure Download PDFInfo
- Publication number
- CN203553251U CN203553251U CN201320592211.XU CN201320592211U CN203553251U CN 203553251 U CN203553251 U CN 203553251U CN 201320592211 U CN201320592211 U CN 201320592211U CN 203553251 U CN203553251 U CN 203553251U
- Authority
- CN
- China
- Prior art keywords
- battery
- pressure relief
- column
- explosion pressure
- bolt
- 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
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 relates to the technical field of batteries, and particularly relates to a battery anti-explosion pressure relief structure. The battery anti-explosion pressure relief structure comprises a T-shaped member, a sealing washer, an elastic member and a block piece, wherein the T-shaped member comprises a flat plate and a cylindrical body arranged at the bottom of the flat plate; the cylindrical body of the T-shaped member penetrates into a battery shell; the sealing washer is arranged between the flat plate of the T-shaped member and the battery shell, and the T-shaped member is fixed on the battery shell through the block piece and the elastic member; a channel communicated with the inner and outer spaces of the battery shell is arranged in the cylindrical body; and when the battery generates a great quantity of gases and the gas pressure in the battery is increased, the gas passes through the channel in the cylindrical body and pushes a bolt to move upward, then an exhaust port of the channel is not sealed by the sealing washer, the gas is discharged outside the battery shell through the channel, thus the pressure relief is realized, the explosion happening when the gas pressure in the battery is increased and the gas cannot be discharged is prevented, and the completion and long-time use of the battery are guaranteed.
Description
Technical field
The utility model relates to battery technology field, relates in particular to a kind of battery anti-explosion pressure relief.
Background technology
In today of scientific and technological develop rapidly, the electronic equipment of various movements is widely applied in human lives, and lithium ion battery also develops rapidly thereupon becomes an industry important in secondary cell field.Lithium ion battery in combination properties such as specific capacity, memory-less effect, long-life, environmental protection considerably beyond other secondary cells, lithium ion battery is called as " ultimate battery ", but the figure of lithium battery is not but seen in high capacity cell field, tracing it to its cause is mainly the restriction that is subject to the safety issue of lithium battery.The potential safety hazard of lithium ion battery maximum is blast, leakage etc.Wherein producing a large amount of gases at high pressure is major reasons that lithium ion battery is blasted.Lithium ion battery is the high working voltage that reaches single battery core 73.0-4.2V, must take decomposition voltage to be greater than the organic electrolyte of 4.3V, and employing organic electrolyte can be by electrolysis under the condition of large electric current, high temperature, electrolysis produces gas, cause internal pressure to raise, seriously can break through housing, blast.
The method of traditional handicraft head it off is that battery core enters after shell, carry out jet-bedding to battery case, and making has indentation on battery case, and when fault occurs, gas rapid expansion is broken through indentation, and gas is emitted, and like this battery is blasted and has been played decompression protection effect.But it is excellent that the method can not guarantee battery, and gas is emitted rear battery and also will be scrapped.
Therefore,, for above deficiency, the utility model provides a kind of battery anti-explosion pressure relief.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of battery anti-explosion pressure relief, prevents battery because air pressure inside raises, gas cannot be discharged and be exploded, and guarantees that battery is excellent.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of battery anti-explosion pressure relief, it comprises T-shape part, seal washer, elastic component and catch, described T-shape part comprises the dull and stereotyped column with being connected to described dull and stereotyped bottom, described column penetrates in battery container by the through hole on battery container, described seal washer is set on described column and between described flat board and battery container, described elastic component be set on described column and the catch mild compression that is positioned at described column bottom in battery container, described column inside has the passage of a connection battery container interior or exterior space, the air inlet of described passage is arranged on the part that described column is positioned at battery container inner side, the exhaust outlet of described passage is arranged on described column and is positioned at the part in battery container outside and is greater than the thickness of the described seal washer of twice with the distance of described exhaust outlet.
Wherein, described T-shape part is bolt, the head that described flat board is bolt, and the screw rod that described column is bolt, described catch is nut.
Wherein, described elastic component is spring.
Wherein, described through hole is positioned on battery cap.
Wherein, the material of described seal washer is elastic rubber material.
Wherein, described column is cylinder or prism.
Wherein, the air inlet of described passage is positioned at the low end face of described column, and the exhaust outlet of described passage is positioned at the side, top of described column.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: the battery anti-explosion pressure relief that the utility model provides is by penetrating the column of T-shape part in battery container, between the flat board of described T-shape part and battery container, seal washer is set, and by catch and elastic component, T-shape part is fixed on battery container, the passage that is communicated with battery container interior or exterior space is set in column inside, when battery produces a large amount of gas cell air pressure inside increase, gas promotes bolt through the passage in column and moves up, thereby the exhaust outlet of passage is no longer subject to the sealing of seal washer, gas is discharged battery container outside by passage, realized pressure release, prevent that battery from raising because of air pressure inside, gas cannot be discharged and be exploded, guaranteed the excellent and permanent use of battery.
Accompanying drawing explanation
Fig. 1 is not profile during pressure release of a kind of battery anti-explosion pressure relief of the utility model;
Fig. 2 is the profile of a kind of battery anti-explosion pressure relief of the utility model while carrying out pressure release;
Fig. 3 is a kind of lithium ion battery cutaway view with pressure relief of the utility model.
In figure, 1: bolt; 2: seal washer; 3: battery cap; 4: spring; 5: nut; 6: pressure relief; 7: battery core; 8: battery container; 9: passage.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, a kind of battery anti-explosion pressure relief that the embodiment of the present invention provides comprises bolt 1, seal washer 2, spring 4 and nut 5, bolt 1 penetrates in battery cap 3 by the manhole on battery cap 3, seal washer 2 is set on the screw rod of bolt 1 and between the head and battery cap 3 of bolt 1, spring 4 is set on the screw rod of described bolt 1 and between nut 5 and battery cap 3 and is subject to nut 5 mild compression, the inside screw of bolt 1 has the passage 9 of connection battery cap 3 interior or exterior spaces, the air inlet of one end of passage 9 is positioned at the low side of screw rod, the exhaust outlet of the other end of passage 9 is arranged on the side, top of screw rod.Certainly, air inlet is not limited to be arranged on the low side of screw rod, as long as the enterprising gas port of screw rod position is positioned at battery cap 3 inner sides and is greater than the thickness of the seal washer of twice with the distance of described exhaust outlet, while producing gas with assurance inside battery, can through exhaust outlet, discharge from this air inlet, in general, air inlet is arranged on screw rod Lower Half, and the position of exhaust outlet is positioned at battery cap 3 outsides.Wherein the battery in the utility model is lithium ion battery with aluminum shell, wherein the material selection elastic rubber material of seal washer.
When pressure relief 6 is not during pressure release, inside battery does not have γ-ray emission, and nut 5 is connected with bolt 1, and makes spring 4 be subject to certain extruding force, and bolt 1 is just fixed like this, and the exhaust outlet of getting through is sealed by packing ring, makes whole device be sealing state.
As shown in Figure 2, when inside battery produces a large amount of gas, inside battery air pressure increases, gas push bolt 1 moves up, while nut 5 Compress Springs 4, exhaust outlet in bolt 1 exposes, gas is discharged by exhaust outlet, realize pressure release, prevent that battery from cannot discharge and explode because of gas, along with gas is discharged, inside battery air pressure reduces, when the gas that battery produces drained, it is normal that inside battery air pressure recovers, spring 4 extends and promotes nut 5, and then promotion bolt 1 moves down, bolt 1 tension, the head of bolt 1 compresses seal washer 2, exhaust outlet again sealed packing ring 2 blocks, outside air cannot enter inside battery from start to finish, guaranteed that like this battery is excellent and reused for a long time.
As shown in Figure 3, the pressure relief 6 of the utility model embodiment is arranged on the battery cap 3 of lithium ion battery, its fabrication and installation are also fairly simple, a through hole more bigger than the screw portion of bolt 1 is bored in optional position on battery cap 3, can guarantee that bolt 1 moves up and down smoothly, seal washer 2 is packed on the screw rod of bolt 1, penetrate in through hole, from the low side of screw rod, pack into spring 4, connect again a diameter than the nut 5 of spring 4 slightly larger in diameter so that nut 5 can block spring 4, then screwing nut 5 makes spring 4 be mild compression state, pressure relief 6 of the present utility model has so just completed, assembled battery afterwards, battery core 7 is packed in battery container 8, the battery cap 3 that pressure relief 6 is installed is assembled into and on lithium ion battery with aluminum shell, has formed a lithium ion battery with aluminum shell with pressure relief 6.Certainly, under the prerequisite that can install, pressure relief 6 of the present utility model is also not limited to be arranged on the battery cap 3 of battery container 8, also can be arranged on other positions of battery container 8, such as the top of side, as long as this position does not have electrolyte.
Certainly, in the pressure relief 6 of the utility model embodiment, can not use this standard component of bolt 1, can replace bolt 1 with other T-shape parts, this T-shape part comprises the dull and stereotyped column with being connected to dull and stereotyped bottom, dull and stereotyped shape can be circle, triangle, quadrangle, pentagon, hexagon etc., column can be cylinder or prism, simultaneously, also can select catch to replace nut 5, when column is selected prism, catch can weld with column, and the through hole on battery cap 3 matches with column.
Pressure relief 6 of the present utility model is not limited to be applied on lithium ion battery with aluminum shell, also can be applied on the battery that case material is other materials, as long as have the position that is suitable for installing the utility model pressure relief 6 on battery container 8.
In sum, the battery anti-explosion pressure relief that the utility model embodiment provides is due to described bolt 1 is penetrated in battery cap 3 by the manhole on battery cap 3, spring 4 be set on the screw rod of described bolt 1 and between described nut 5 and battery cap 3 and be subject to nut 5 mild compression, inside screw at bolt 1 arranges the passage 9 that is communicated with battery cap 3 interior or exterior spaces, when inside battery produces a large amount of gas, gas push bolt 1 moves up, exhaust outlet in bolt 1 exposes, gas is discharged by exhaust outlet, realized pressure release, prevented that battery from cannot discharge and blast because of gas, make battery excellent, can reuse for a long time.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection range of the present utility model.
Claims (7)
1. a battery anti-explosion pressure relief, it is characterized in that: it comprises T-shape part, seal washer, elastic component and catch, described T-shape part comprises the dull and stereotyped column with being connected to described dull and stereotyped bottom, described column penetrates in battery container by the through hole on battery container, described seal washer is set on described column and between described flat board and battery container, described elastic component be set on described column and the catch mild compression that is positioned at described column bottom in battery container, described column inside has the passage of a connection battery container interior or exterior space, the exhaust outlet of described passage is arranged on the part that described column is positioned at battery container outside, the air inlet of described passage is arranged on described column and is positioned at the part of battery container inner side and is greater than the thickness of the described seal washer of twice with the distance of described exhaust outlet.
2. battery anti-explosion pressure relief according to claim 1, is characterized in that: described T-shape part is bolt, the head that described flat board is bolt, and the screw rod that described column is bolt, described catch is nut.
3. battery anti-explosion pressure relief according to claim 1, is characterized in that: described elastic component is spring.
4. battery anti-explosion pressure relief according to claim 1, is characterized in that: described through hole is positioned on battery cap.
5. battery anti-explosion pressure relief according to claim 1, is characterized in that: the material of described seal washer is elastic rubber material.
6. battery anti-explosion pressure relief according to claim 1, is characterized in that: described column is cylinder or prism.
7. according to the battery anti-explosion pressure relief described in claim 1-6 any one, it is characterized in that: the air inlet of described passage is positioned at the low end face of described column, the exhaust outlet of described passage is positioned at the side, top of described column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592211.XU CN203553251U (en) | 2013-09-24 | 2013-09-24 | Battery anti-explosion pressure relief structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592211.XU CN203553251U (en) | 2013-09-24 | 2013-09-24 | Battery anti-explosion pressure relief structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553251U true CN203553251U (en) | 2014-04-16 |
Family
ID=50471327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320592211.XU Expired - Fee Related CN203553251U (en) | 2013-09-24 | 2013-09-24 | Battery anti-explosion pressure relief structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553251U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835929A (en) * | 2015-05-07 | 2015-08-12 | 深圳市慧通天下科技股份有限公司 | Anti-explosion cell box |
| CN107809124A (en) * | 2017-10-16 | 2018-03-16 | 镇江市南方工矿器材有限公司 | A kind of explosion-proof charging cabinet |
| CN110100327A (en) * | 2016-12-21 | 2019-08-06 | Fdk株式会社 | Alkaline secondary cell |
| WO2022099932A1 (en) * | 2020-11-16 | 2022-05-19 | 江苏时代新能源科技有限公司 | End cap assembly, battery cell, vent method, battery, and electrical device |
| US20230006303A1 (en) * | 2021-06-30 | 2023-01-05 | Samsung Sdi Co., Ltd. | Secondary battery |
| CN115832549A (en) * | 2022-11-03 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery monomer, battery, power utilization device and battery processing method |
| DE102022128838A1 (en) | 2022-10-31 | 2024-05-02 | Bayerische Motoren Werke Aktiengesellschaft | Battery cell and battery for an electric vehicle |
-
2013
- 2013-09-24 CN CN201320592211.XU patent/CN203553251U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835929A (en) * | 2015-05-07 | 2015-08-12 | 深圳市慧通天下科技股份有限公司 | Anti-explosion cell box |
| CN110100327A (en) * | 2016-12-21 | 2019-08-06 | Fdk株式会社 | Alkaline secondary cell |
| CN107809124A (en) * | 2017-10-16 | 2018-03-16 | 镇江市南方工矿器材有限公司 | A kind of explosion-proof charging cabinet |
| WO2022099932A1 (en) * | 2020-11-16 | 2022-05-19 | 江苏时代新能源科技有限公司 | End cap assembly, battery cell, vent method, battery, and electrical device |
| US20220359963A1 (en) * | 2020-11-16 | 2022-11-10 | Jiangsu Contemporary Amperex Technology Limited | End cover assembly, battery cell, degassing method, battery, and electric apparatus |
| US11705610B2 (en) * | 2020-11-16 | 2023-07-18 | Jiangsu Contemporary Amperex Technology Limited | End cover assembly, battery cell, degassing method, battery, and electric apparatus |
| US20230006303A1 (en) * | 2021-06-30 | 2023-01-05 | Samsung Sdi Co., Ltd. | Secondary battery |
| DE102022128838A1 (en) | 2022-10-31 | 2024-05-02 | Bayerische Motoren Werke Aktiengesellschaft | Battery cell and battery for an electric vehicle |
| CN115832549A (en) * | 2022-11-03 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery monomer, battery, power utilization device and battery processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203553251U (en) | Battery anti-explosion pressure relief structure | |
| CN102709505B (en) | Adjustable explosion relief valve of storage battery | |
| CN102748041B (en) | Nitrogen safety valve for hydraulic support in coal mine fully mechanized mining | |
| CN207542310U (en) | A kind of power battery head cover blast resistance construction | |
| CN203536487U (en) | Inerting battery box | |
| CN207648214U (en) | A kind of anti-explosion valve structure of lithium battery | |
| CN204067445U (en) | A kind of anti-expansion lithium ion power battery shell | |
| CN109698298A (en) | The pressure relief device of battery core | |
| CN203932167U (en) | The detachable safety valve of electrokinetic cell | |
| CN105977428B (en) | A kind of explosion-proof mobile power source nickel-metal hydride battery | |
| CN102903866A (en) | Lithium ion battery | |
| CN203694458U (en) | Fire extinguishing device for car spontaneous combustion | |
| KR101143319B1 (en) | Cartridge Assembly for Crushing Rock | |
| CN202352747U (en) | Explosion-proof lithium battery cover plate with sealing ring | |
| CN208722972U (en) | A kind of safe deflation structure of lithium dynamical battery shell | |
| CN103151479A (en) | Energy storage battery for coal mine and battery core thereof | |
| CN203690385U (en) | Anti-explosion bolt and storage battery with same | |
| CN200993255Y (en) | Gas tight casing pressure protection valve | |
| CN205828499U (en) | A kind of explosion-proof portable power source Ni-MH battery | |
| CN201681988U (en) | Lithium ion battery safety valve | |
| CN217481721U (en) | Plugging screw plug of natural gas | |
| CN2400660Y (en) | Tyre safety valve | |
| CN203617383U (en) | Unit cell with polar columns with functions of liquid injecting and gas exhausting | |
| CN114024086A (en) | Application of one-way valve and drying agent in battery | |
| CN204577510U (en) | A kind of inset type electrode structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211130 Address after: 036002 No. 53, Gengzhuang village, Dayun Road, xiaopingyi Township, Shuocheng District, Shuozhou City, Shanxi Province (Wang Xiao house) Patentee after: Shanxi nasen new energy Co.,Ltd. Address before: Room 507, tower a, Huangcheng international, No. 136 andingmenwai street, Dongcheng District, Beijing 100011 Patentee before: BEIJING DINGNENG KAIYUAN BATTERY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220525 Address after: 036002 No. 3 branch of Hongqi ranch, Shuozhou Economic Development Zone, Shuozhou City, Shanxi Province Patentee after: Shanxi Dingneng Qiyuan New Energy Technology Co.,Ltd. Address before: 036002 No. 53, Gengzhuang village, Dayun Road, xiaopingyi Township, Shuocheng District, Shuozhou City, Shanxi Province (Wang Xiao house) Patentee before: Shanxi nasen new energy Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 |