CN202333030U - Battery pack with safety device - Google Patents
Battery pack with safety device Download PDFInfo
- Publication number
- CN202333030U CN202333030U CN2011202944955U CN201120294495U CN202333030U CN 202333030 U CN202333030 U CN 202333030U CN 2011202944955 U CN2011202944955 U CN 2011202944955U CN 201120294495 U CN201120294495 U CN 201120294495U CN 202333030 U CN202333030 U CN 202333030U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- safeties
- battery
- series
- battery module
- 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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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack with a safety device. The battery pack comprises battery modules in the battery pack and the safety device, and is characterized in that: the safety device is connected to the battery pack which is connected in series; when a certain battery module in the battery pack is short-circuited, the safety device can be automatically disconnected from the whole circuit; and therefore, the safety of the other battery modules in the battery pack is protected. By the battery pack, the safety performance of the battery pack is improved, so that safety performance of electric automobiles, electric bicycles and the like is improved.
Description
Technical field
The utility model relates to field of batteries, especially in the lithium-ion-power cell field, specifically is in series battery, to insert safeties.
Background technology
At electric automobile; On the electric bicycle, the lithium-ion-power cell group is an energy source, and the battery for electric automobile group has voltage height (hundreds of volt); Current strength big (hundreds of peace); The characteristics that energy is big, battery module process series and parallel that need be a large amount of just can reach the power requirement of electric motor car, and the performance quality of electrokinetic cell can directly have influence on the security performance of electric automobile.Present power battery pack on the market has a variety of; But all be simple series and parallel between some cells, do not have safety precautions between the battery pack, this battery pack in use; If some cell modules break down in the battery pack; As: short circuit, will burn whole battery group, burn whole electric motor car when serious.
Summary of the invention
The purpose of the utility model provides a kind of battery pack with safeties, with the problem that solves some cell faults in the battery pack now and cause whole battery group to be burnt.
In order to achieve the above object, a kind of technical scheme that battery pack adopted with safeties of the utility model is: in the series battery circuit, insert safeties, the utility model operation principle is: battery pack current is by total anodal outflow of battery pack; Through electrical appliance, get back to the total negative pole of battery pack, through each cell; Flow through safeties, flow to battery module positive pole always, accomplish a loop; If some cell module short circuits in the battery pack; Safeties can cut off entire circuit automatically, thereby have saved the safety of interior other battery module of battery pack from damage, have reduced the generation probability of dangerous accident.
Safeties are PTC, or the tin fuse, or nickel strap, or aluminium strip, or bimetallic, or memory metal species fuse.
Battery pack is assembled by the above battery modules series connection of at least two or two; Battery module can be a battery module of forming behind the cell series and parallel of many low capacities, also can be that a jumbo cell is as a battery module.
The utility model has improved the security performance of battery, thereby has improved electric automobile, the security performance of electric bicycle etc.
Description of drawings
Fig. 1 is application example circuit theory diagrams of the utility model.
Fig. 2 is the Another application example circuit schematic diagram of the utility model.
Embodiment
A kind of application example circuit theory diagrams of battery pack with safeties of the utility model as shown in Figure 1 comprise battery anode output line 1, battery pack total anodal 2; Be connected on the safeties 3 in the battery pack; The total negative pole 4 of battery pack, negative pole output line 5, battery module 15.When in the series battery during certain battery module short circuit, safeties 3 are fusing automatically, thereby protected the safety of whole battery group.
As shown in Figure 2, a kind of battery pack Another Application example circuit schematic diagram of the utility model, the total negative pole 6 of battery pack, battery pack casing 7 with safeties; 9,12, form connecting line 8 in the battery pack casing at least by two above battery modules; 10, safeties 11, battery pack total anodal 13; When in the battery pack box during some cell short circuits, safeties 11 are fusing automatically, thereby protected the safety of whole battery group.
Claims (4)
1. the battery pack with safeties comprises battery module in the battery pack, and safeties specifically are in series battery, to insert safeties, and when in the battery pack during some battery module short circuits, safeties can the automatic disconnection entire circuit.
2. a kind of battery pack with safeties according to claim 1 is characterized in that: in series connected battery group circuit, insert safeties, safeties are fuses.
3. a kind of battery pack with safeties according to claim 1, it is characterized in that: said safeties are PTC, or the tin fuse, or nickel strap, or aluminium strip, or bimetallic, or memory metal species fuse.
4. a kind of battery pack according to claim 1 with safeties; It is characterized in that: battery pack is assembled by the above battery modules series connection of at least two or two; Battery module can be a battery module of forming behind the cell series and parallel of many low capacities, also can be that a jumbo cell is as a battery module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202944955U CN202333030U (en) | 2011-08-15 | 2011-08-15 | Battery pack with safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202944955U CN202333030U (en) | 2011-08-15 | 2011-08-15 | Battery pack with safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202333030U true CN202333030U (en) | 2012-07-11 |
Family
ID=46444997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202944955U Expired - Fee Related CN202333030U (en) | 2011-08-15 | 2011-08-15 | Battery pack with safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202333030U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769120A (en) * | 2012-07-24 | 2012-11-07 | 深圳市雄韬电源科技股份有限公司 | Battery pack connecting device, battery system and electric equipment |
| CN102938476A (en) * | 2011-08-15 | 2013-02-20 | 谢长淮 | Safety device equipped battery pack |
| CN107293686A (en) * | 2016-04-13 | 2017-10-24 | 北京连创驱动技术有限公司 | A kind of passive security mechanism for electric automobile lithium battery |
| CN111640905A (en) * | 2020-05-26 | 2020-09-08 | 北京海博思创科技有限公司 | Battery cluster |
-
2011
- 2011-08-15 CN CN2011202944955U patent/CN202333030U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938476A (en) * | 2011-08-15 | 2013-02-20 | 谢长淮 | Safety device equipped battery pack |
| CN102769120A (en) * | 2012-07-24 | 2012-11-07 | 深圳市雄韬电源科技股份有限公司 | Battery pack connecting device, battery system and electric equipment |
| CN102769120B (en) * | 2012-07-24 | 2016-03-30 | 深圳市雄韬电源科技股份有限公司 | Battery pack connecting device, battery system and electric equipment |
| CN107293686A (en) * | 2016-04-13 | 2017-10-24 | 北京连创驱动技术有限公司 | A kind of passive security mechanism for electric automobile lithium battery |
| CN111640905A (en) * | 2020-05-26 | 2020-09-08 | 北京海博思创科技有限公司 | Battery cluster |
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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: 20120711 Termination date: 20140815 |
|
| EXPY | Termination of patent right or utility model |