CN203367407U - Parallel connection safety structure of lithium ion battery pack - Google Patents
Parallel connection safety structure of lithium ion battery pack Download PDFInfo
- Publication number
- CN203367407U CN203367407U CN2013203680794U CN201320368079U CN203367407U CN 203367407 U CN203367407 U CN 203367407U CN 2013203680794 U CN2013203680794 U CN 2013203680794U CN 201320368079 U CN201320368079 U CN 201320368079U CN 203367407 U CN203367407 U CN 203367407U
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- CN
- China
- Prior art keywords
- parallel
- lithium ion
- battery pack
- battery
- ion battery
- 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 24
- 210000004027 cell Anatomy 0.000 claims description 18
- 238000010276 construction Methods 0.000 claims description 17
- 210000004460 N cell Anatomy 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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
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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a parallel connection safety structure of a lithium ion battery pack. The battery pack comprises N battery cells which are connected in parallel into a row; the anode end and the cathode end of the row of battery cells are fixed and connected in parallel with a circuit through a reinforcing circuit board; fuse wires of which the two ends are electrically connected to an electric conduction main board and the anode of the battery respectively are arranged on the reinforcing circuit board. Compared with the prior art, the parallel connection safety structure of the lithium ion battery pack, disclosed by the utility model, has the advantages that as one fuse wire is additionally arranged between the anode of each battery cell and the electric conduction main board, the mutual balance of the battery cells can be realized, the consistency is improved, in addition, if short circuit of a certain battery cell inside the battery pack is caused, the fuse wire mounted at the anode of the battery cell is fused, and the battery cell subjected to short circuit is separated from the battery pack, so that the temperature of the battery cell subjected to short circuit is prevented from rising sharply, and the safety of the battery pack is ensured.
Description
[technical field]
The utility model relates to the safe practice field of power battery pack, relates in particular to a kind of safeguard construction in parallel of lithium ion battery group.
[background technology]
Lithium ion battery, as a kind of motive-power battery of energy-conserving and environment-protective, has represented the direction of battery future development, and it is the optimal electrokinetic cell of inventing up to now.The lithium ion battery industry meets the guiding of national industrial policies, is the important development Object Industry of current various countries.
Lithium ion battery, as the new forms of energy of automobile, is widely used.Yet electric motor car all requires higher to the voltage of battery, electric current, consistency etc., therefore, the battery pack that several lithium ion battery series and parallels combine is installed in the power supply box of electric motor car.
Current lithium ion battery group is to carry out the increase capacity by mode in parallel, requires equilibrium mutually between all cells in parallel, and consistency is better.If but short trouble appears in a certain joint cell, it will become other loads of battery in parallel with it, the energy of all batteries in parallel will discharge rapidly in the fault cell with it, the temperature of fail battery sharply rises, and stays huge potential safety hazard finally to the normal operation of whole battery pack.
In view of above drawback, be necessary to provide in fact a kind of safeguard construction in parallel of lithium ion battery group.
[utility model content]
The purpose of this utility model is to provide a kind of safeguard construction in parallel of lithium ion battery group, and the safeguard construction of this battery pack can contribute to equilibrium and the overcurrent protection of electric current in battery pack, and the prevention battery pack causes serious consequence because of the short circuit of cell.
To achieve these goals, the utility model adopts following technical scheme: a kind of safeguard construction in parallel of lithium ion battery group, this battery pack comprises N cell in parallel in a row, the positive and negative end of described row's cell is fixed and being connected in parallel of circuit by reinforced wiring board, and described reinforced wiring board is provided with the fuse that two ends are electrically connected to respectively conduction mainboard and anode.
Compared with prior art; the safeguard construction in parallel of a kind of lithium ion battery group of the utility model; owing between the positive pole at each battery and conduction mainboard, having added fuse; not only can allow between cell balanced mutually; improve consistency; on the other hand; if the phenomenon of short circuit appears in inner certain cell of battery pack; will make the blown fuse that is arranged on this cell positive pole; thereby this short circuit cell is isolated from battery pack; stop the temperature of this short circuit battery sharply to rise, protected the safety of battery pack.
[accompanying drawing explanation]
The overall structure schematic diagram of the safeguard construction in parallel that Fig. 1 is a kind of lithium ion battery group of the utility model;
The reinforced wiring board schematic diagram of the safeguard construction in parallel that Fig. 2 is a kind of lithium ion battery group shown in Fig. 1;
The electric connection schematic diagram of the safeguard construction in parallel that Fig. 3 is a kind of lithium ion battery group of the utility model.
[embodiment]
Please refer to shown in Fig. 1 to Fig. 3, the safeguard construction in parallel of a kind of lithium ion battery group of the utility model, it comprises battery cell, fuse R, reinforced wiring board PCB, be installed on total anodal parallel circuits ZL and total negative pole parallel circuits FL on PCB, described fuse R is enclosed fuse, the two ends of fuse R are electrically connected respectively PCB conduction mainboard and anode, and in the utility model, the blowout current of described fuse is 10-80A.
The know-why of the safeguard construction in parallel of a kind of lithium ion battery group of the utility model is: every group of batteries in parallel connection group comprises row's cell cell1, cell2, cell3...cell N is connected in parallel, when certain cell generation internal short-circuit, the voltage of this cell will descend rapidly, and other with it in parallel all cells will this short circuit battery be charged, cause the temperature of this battery sharply to rise, now, be arranged on this short circuit battery positive pole and can flow through very large electric current with the fuse R on total anodal parallel circuits, when current value is greater than the blow-out current value of this fuse, fuse can fuse, like this, the connecting circuit of the cell of this internal short-circuit and batteries in parallel connection group can disconnect, thereby protected the safety of battery pack.
The safeguard construction in parallel of a kind of lithium ion battery group of the utility model, be not restricted to described in specification and execution mode, therefore can easily realize additional advantage and modification for the personnel of familiar field, therefore, in the situation that do not deviate from the spirit and scope of the universal that claim and equivalency range limit, the utility model is not limited to specific details, representational equipment and illustrates here and the examples shown of describing.
Claims (4)
1. the safeguard construction in parallel of a lithium ion battery group, this structure comprises battery, reinforced wiring board, fuse, it is characterized in that: described battery pack comprises N cell in parallel in a row, the positive and negative end of described row's cell is fixed and being connected in parallel of circuit by reinforced wiring board, and described reinforced wiring board is provided with the fuse that two ends are electrically connected to respectively conduction mainboard and anode.
2. the safeguard construction in parallel of a kind of lithium ion battery group as claimed in claim 1, it is characterized in that: described safeties are enclosed fuse.
3. the safeguard construction in parallel of a kind of lithium ion battery group as claimed in claim 1, it is characterized in that: the blowout current of described fuse is 10-80A.
4. the safeguard construction in parallel of a kind of lithium ion battery group as claimed in claim 1, it is characterized in that: described fuse is arranged on reinforced wiring board, and two ends are electrically connected to respectively conduction mainboard and anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203680794U CN203367407U (en) | 2013-06-18 | 2013-06-18 | Parallel connection safety structure of lithium ion battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203680794U CN203367407U (en) | 2013-06-18 | 2013-06-18 | Parallel connection safety structure of lithium ion battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367407U true CN203367407U (en) | 2013-12-25 |
Family
ID=49815127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203680794U Expired - Fee Related CN203367407U (en) | 2013-06-18 | 2013-06-18 | Parallel connection safety structure of lithium ion battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367407U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241588A (en) * | 2013-06-18 | 2014-12-24 | 深圳市沃特玛电池有限公司 | Parallel connection safety structure of lithium ion battery pack |
| GB2522443A (en) * | 2014-01-24 | 2015-07-29 | Energy Control Ltd | Battery pack using circuit board as electric connection to connect battery cells |
| CN110034261A (en) * | 2019-05-22 | 2019-07-19 | 湖南科霸汽车动力电池有限责任公司 | The automobile-used nickel-metal hydride battery packet of two-wheel electric |
-
2013
- 2013-06-18 CN CN2013203680794U patent/CN203367407U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241588A (en) * | 2013-06-18 | 2014-12-24 | 深圳市沃特玛电池有限公司 | Parallel connection safety structure of lithium ion battery pack |
| GB2522443A (en) * | 2014-01-24 | 2015-07-29 | Energy Control Ltd | Battery pack using circuit board as electric connection to connect battery cells |
| CN110034261A (en) * | 2019-05-22 | 2019-07-19 | 湖南科霸汽车动力电池有限责任公司 | The automobile-used nickel-metal hydride battery packet of two-wheel electric |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Parallel connection safety structure of lithium ion battery pack Effective date of registration: 20141218 Granted publication date: 20131225 Pledgee: Export Import Bank of China Pledgor: Shenzhen Optimum Battery Co.,Ltd.|Zhao Bing Registration number: 2014990001097 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171025 Granted publication date: 20131225 Pledgee: Export Import Bank of China Pledgor: Shenzhen Optimum Battery Co.,Ltd.|Zhao Bing Registration number: 2014990001097 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20180428 Granted publication date: 20131225 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210428 Granted publication date: 20131225 |
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| PP01 | Preservation of patent right |
Effective date of registration: 20210428 Granted publication date: 20131225 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230618 Granted publication date: 20131225 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Fei Document name: Notice of Termination of Patent Rights |
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| 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: 20131225 |