CN202651256U - Thermocutout for polymer lithium battery - Google Patents
Thermocutout for polymer lithium battery Download PDFInfo
- Publication number
- CN202651256U CN202651256U CN2012202902514U CN201220290251U CN202651256U CN 202651256 U CN202651256 U CN 202651256U CN 2012202902514 U CN2012202902514 U CN 2012202902514U CN 201220290251 U CN201220290251 U CN 201220290251U CN 202651256 U CN202651256 U CN 202651256U
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- CN
- China
- Prior art keywords
- lithium battery
- poly
- thermocutout
- spring body
- insulated spring
- 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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- 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
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- Fuses (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a thermocutout for a polymer lithium battery. The thermocutout comprises a cover plate arranged on a polymer lithium battery body, wherein the cover plate is provided with a plug hole, and the plug hole is internally provided with an electrode terminal unit comprising a terminal; the upper end of the terminal is provided with a locking unit, the locking unit is connected with an insulated spring body in a sleeved manner, and the insulated spring body is connected with the polymer lithium battery body through a metallic conduction piece; one end of the metallic conduction piece is sleeved on the locking unit and props against the insulated spring body; and the locking unit is also provided with fusible screw cap, and the insulated spring body and the conduction piece are fixed on the terminal through the screw cap. By virtue of the structural improvement, the polymer lithium battery can be prevented from the phenomena such as excessive heating and explosion caused by oversize electric current, and thus the security of the polymer lithium battery is improved.
Description
Technical field
The utility model relates to poly-lithium battery, relates in particular to the thermocutout that plays safety effect for poly-lithium battery.
Background technology
In common circuit, by take a policy silk or similarly fuse cutout play the effect of protective circuit, when circuit load goes beyond the limit, thereby fuse at high temperature melts circuit is disconnected, and prevents that load is burned.But this safe design can only have safety effect to traditional circuit block, the poly-lithium battery inside of widely being used does not in recent years arrange fuse component, so that poly-lithium battery is easy to produce under high temperature or the high pressure problems such as blast on fire owing to have higher energy density.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of thermocutout for poly-lithium battery, can when overcurrent high temperature appears in the lithium battery circuit, cut off the negative or positive electrode electric current rapidly, prevent from producing when temperature or electric current are too high the phenomenons such as burning or blast.
For achieving the above object, the utility model is achieved through the following technical solutions:
The thermocutout that is used for poly-lithium battery, comprise the cover plate that is installed on the poly-lithium battery body, described cover plate is provided with jack, be provided with the electrode terminal unit in the described jack, comprise terminal, the terminal upper end is provided with lock cell, is socketed with the insulated spring body on the described lock cell, the insulated spring body is connected with the poly-lithium battery body by the metallic conduction sheet, described metallic conduction sheet one end be socketed on the lock cell and with insulated spring body butt; Also be provided with meltable nut on the described lock cell, insulated spring body and conducting strip are fixed on the terminal.
Wherein, described cover plate is metal cover board or plastic cement cover plate, for useful life and hardness consideration, preferably uses metal cover board.
Wherein, used meltable nut adopts low-melting material to make, and includes but not limited to aluminium, lead or plastic cement.
Wherein, described insulated spring body is that metal spring adopts plastic cement wrapped with insulation or plating insulation enamelled coating.
Occur the problem of throwing off from the battery body battery core when preventing that the metallic conduction sheet is connected with the poly-lithium battery body, described metallic conduction sheet is provided with screw, by screw the battery core of metallic conduction sheet with the poly-lithium battery body is connected.
Improve by said structure, when the lithium battery electric current belonged in the normal range (NR), the electrode terminal unit can not cause because electric current is excessive abnormal intensification, and temperature can not reach the melting range of nut, and circuit can not disconnect; When electric current is too high; the electrode terminal unit can produce high temperature; when temperature arrives the nut melting range; nut is because of high temperature melt; so that insulated spring body and metallic conduction sheet can't be fixed on the terminal; so that the insulated spring body flicks the metallic conduction sheet; metallic conduction sheet and terminal region are separated; electric current on the lithium battery electric core can't form by the metallic conduction sheet and open circuit; realized being similar to the protection effect of the fuse in the traditional circuit; prevent that poly-lithium battery from because crossing thermal explosion, having improved fail safe.
Description of drawings
Fig. 1 is STRUCTURE DECOMPOSITION schematic diagram of the present utility model;
Fig. 2 has shown working state schematic representation of the present utility model.
Embodiment
With reference to figure 1, Fig. 2, thermocutout of the present utility model, comprise the cover plate 2 that is installed on the poly-lithium battery body 1, cover plate is provided with jack 3, be provided with the electrode terminal unit in the jack, comprise terminal 41, the terminal upper end is provided with lock cell 42, be socketed with insulated spring body 43 on the lock cell, the insulated spring body is connected with the battery core 11 of poly-lithium battery body by metallic conduction sheet 44, metallic conduction sheet one end be provided with perforation lock cell 42 is passed be combined with meltable nut fixing, metallic conduction sheet one end be socketed on the lock cell and with insulated spring body butt; Also be provided with meltable nut 5 on the lock cell, insulated spring body and conducting strip are fixed on the terminal.
Wherein, the metallic conduction sheet is provided with screw 6, by screw 7 battery core of metallic conduction sheet with the poly-lithium battery body is connected.
Claims (5)
1. the thermocutout that is used for poly-lithium battery, comprise the cover plate that is installed on the poly-lithium battery body, it is characterized in that described cover plate is provided with jack, be provided with the electrode terminal unit in the described jack, comprise terminal, the terminal upper end is provided with lock cell, is socketed with the insulated spring body on the described lock cell, the insulated spring body is connected with the poly-lithium battery body by the metallic conduction sheet, described metallic conduction sheet one end be socketed on the lock cell and with insulated spring body butt; Also be provided with meltable nut on the described lock cell, insulated spring body and conducting strip are fixed on the terminal.
2. the thermocutout for poly-lithium battery according to claim 1 is characterized in that described cover plate is metal cover board.
3. the thermocutout for poly-lithium battery according to claim 1 is characterized in that used meltable nut is to adopt low-melting material to make.
4. the thermocutout for poly-lithium battery according to claim 1 is characterized in that described insulated spring body is that metal spring adopts plastic cement wrapped with insulation or plating insulation enamelled coating.
5. the thermocutout for poly-lithium battery according to claim 1 is characterized in that described metallic conduction sheet is provided with screw, is connected the battery core of metallic conduction sheet with the poly-lithium battery body by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202902514U CN202651256U (en) | 2012-06-19 | 2012-06-19 | Thermocutout for polymer lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202902514U CN202651256U (en) | 2012-06-19 | 2012-06-19 | Thermocutout for polymer lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651256U true CN202651256U (en) | 2013-01-02 |
Family
ID=47420312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202902514U Expired - Fee Related CN202651256U (en) | 2012-06-19 | 2012-06-19 | Thermocutout for polymer lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651256U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576184A (en) * | 2014-11-05 | 2016-05-11 | 三星Sdi株式会社 | Rechargeable battery |
| CN106229213A (en) * | 2016-09-23 | 2016-12-14 | 贵州遵义鑫阳电子科技有限公司 | interrupt relay |
| CN113394518A (en) * | 2021-05-07 | 2021-09-14 | 恒大新能源技术(深圳)有限公司 | Battery module |
| CN115763185A (en) * | 2022-12-15 | 2023-03-07 | 上海千顾汽车科技有限公司 | Controller circuit board thermal fuse and manufacturing method thereof |
-
2012
- 2012-06-19 CN CN2012202902514U patent/CN202651256U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576184A (en) * | 2014-11-05 | 2016-05-11 | 三星Sdi株式会社 | Rechargeable battery |
| CN105576184B (en) * | 2014-11-05 | 2020-07-21 | 三星Sdi株式会社 | Rechargeable battery |
| CN106229213A (en) * | 2016-09-23 | 2016-12-14 | 贵州遵义鑫阳电子科技有限公司 | interrupt relay |
| CN113394518A (en) * | 2021-05-07 | 2021-09-14 | 恒大新能源技术(深圳)有限公司 | Battery module |
| CN115763185A (en) * | 2022-12-15 | 2023-03-07 | 上海千顾汽车科技有限公司 | Controller circuit board thermal fuse and manufacturing method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180619 |