CN201345384Y - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN201345384Y CN201345384Y CNU2008202074796U CN200820207479U CN201345384Y CN 201345384 Y CN201345384 Y CN 201345384Y CN U2008202074796 U CNU2008202074796 U CN U2008202074796U CN 200820207479 U CN200820207479 U CN 200820207479U CN 201345384 Y CN201345384 Y CN 201345384Y
- Authority
- CN
- China
- Prior art keywords
- cell connector
- battery
- battery pack
- groove
- cell
- 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
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack, which comprises a plurality of single batteries and battery connection pieces; the single batteries are connected in series, or in parallel, or in series and parallel through the battery connection pieces; and a groove is arranged on the surface of the battery connection piece, and the groove breaks under the external mechanical force so as to achieve the purpose of safety. The probability of pushing the connection pieces for the single battery of the battery pack into the interior of the battery can be effectively reduced, and the hidden trouble of the short circuit inside a battery is reduced; and the battery pack has a simple structure, is convenient to process, and at the same time solves the problems that internal resistance is overlarge when the batteries are connected and admittance area of the battery is insufficient.
Description
Technical field
The utility model relates to battery, more particularly, relates to a kind of battery pack.
Background technology
Along with the raising of human environmental consciousness, it will be following inexorable trend that electric automobile (EV) and hybrid vehicle (HEV) replace existing fuel vehicle.As the core drive energy---the power battery pack of electric automobile, it is particularly outstanding that its importance seems.
As everyone knows, power battery pack is to be combined through certain mode by a plurality of cells, and therefore the security performance for the connecting portion between cell requires also just quite high; Most of in the market batteries all are connected with other electrokinetic cells with the sheet brace, and such potential safety hazards such as connection battery short circuit are very big.
The utility model content
Inventor of the present utility model finds to cause potential safety hazards such as battery short circuit because the common batteries brace of existing battery is very easy to directly be penetrated in the battery when being subjected to clashing into through repeatedly research and experiment.
The purpose of this utility model is to overcome the conventional batteries short circuit ratio than higher defective, and provides a kind of battery short circuit rate low battery pack.
The utility model provides a kind of battery pack, comprises some cells and cell connector;
Connect by cell connector series connection or parallel connection or series-parallel connection between the cell;
The cell connector surface is provided with groove, the described groove safety effect that ruptured after being subjected to mechanical external force.
The utility model provides a kind of battery pack, connect by cell connector between the battery pack, cell connector is provided with groove, effectively reduce brace and be squeezed into the probability of inside battery, and, the utility model is simple in structure, and is easy to process, the excessive problem of internal resistance and the problem of battery admittance area deficiency when also having solved battery simultaneously and connecting.
Description of drawings
The structural representation of a kind of battery pack that Fig. 1 the utility model provides (2 cells are formed);
The structural representation of the another kind of battery pack that Fig. 2 the utility model provides (2 cells are formed).
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is described in further detail below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model is example with the lithium ion battery.Mainly being described as automobile etc. provides the electrokinetic cell of power.
Embodiment 1:
To shown in Figure 2, the utility model provides a kind of battery pack, comprises some cells and cell connector 1 as Fig. 1, is connected by cell connector 1 series connection or parallel connection or series-parallel connection between the cell; Be series connection between the cell, cell connector 1 of a battery is connected with the opposite polarity cell connector 1 of an adjacent battery, and the opposite polarity cell connector 1 of another cell connector 1 battery adjacent with another is connected.The mode that cell is connected includes but not limited to following mode: the negative terminal (not shown) that is positioned at the battery of an end is connected with the positive terminal (not shown) of adjacent battery, the positive terminal that perhaps is positioned at the battery of an end is connected with the negative terminal of adjacent battery, and the like, opposite polarity a pair of cell connector 1 welding of two adjacent batteries, thereby two batteries at the two ends of the battery pack that obtains respectively have a cell connector 1 not to be connected with other cell connector 1, and the polarity of these two cell connectors 1 is opposite, as the both positive and negative polarity of battery pack.
Connected mode between the cell connector 1 is for fitting, as long as the cell connector 1 that will need to connect fits together and makes certain bonding strength arranged between the cell connector 1, under the preferable case, cell connector 1 welded.Welding can be existing various welding methods, and for example cold welding, supersonic welding, Laser Welding, soldering, flash butt welding, friction welding (FW), electric resistance welding etc. preferably adopt cold welding.Use cold welding only need provide enough static pressures just can realize reliable welding, and it is little, shockproof and do not have a relative displacement to be welded the object caloric value in the welding process.
Being shaped as of cell connector 1 of the present utility model
Or
Shape.When cell connector 1 is subjected to external impact, groove 2 positions of cell connector 1 at first begin to internal strain, when cell connector 1 deflection acquires a certain degree, (outside impact has just been absorbed by cell connector 1, so cell connector 1 is difficult for being inserted into inside battery, simultaneously because the features of shape of cell connector 1, cell connector 1 is stopped by the insulating part on the cover plate, cell connector 1 equally also is difficult to be inserted into inside battery,) phenomenon of fracture appears in cell connector 1, whole power battery just is in a kind of off state like this, so battery just can not be short-circuited, burning, explosion safety accident, thereby the fail safe that has improved cell.
In the cell connector 1 that the utility model provides, the method preparation that described groove 2 can adopt mechanical field to know is arbitrarily perhaps made with methods such as punching presses; The degree of depth of described groove 2 is the 10%-95% of cell connector 1 thickness; The length of described groove 2 is the 50%-100% of cell connector 1 width; Groove 2 on the described cell connector 1 is one or more of.
The thickness of described cell connector 1 can be decided according to the kind and the preparation needs of battery, and according to specific embodiments of the present utility model, the thickness of described cell connector 1 is the 0.2-20 millimeter, preferred 2.5 millimeters.
The width of described cell connector 1 can be decided according to the kind and the preparation needs of battery, and according to specific embodiments of the present utility model, the width of described cell connector 1 is the 2-20 millimeter, preferred 5 millimeters.
Described cell connector 1 can adopt various electric conducting material well known in the art to make, as fine copper or fine aluminium; Can determine according to battery size;
Be provided with soft in the described groove 2 and the filler filler of conductive capability and certain bond strength is arranged, such as tin, conductive plastic, conductive rubber etc.
The cell connector 1 that the utility model provides can be used for various batteries, as secondary cell.
Embodiment 2:
With reference to Fig. 2, the utility model provides another kind of battery pack, comprises some cells and cell connector 1, is connected by cell connector 1 series connection or parallel connection or series-parallel connection between the cell
Mode by welding between the cell connector 1 connects, cell connector 1 of the present utility model be shaped as bar shaped.When cell connector 1 is subjected to external impact, groove 2 positions of cell connector 1 at first begin to internal strain, when cell connector 1 deflection acquires a certain degree, groove 2 is positioned at cell connector 1 and fracture occurs along the Y direction, whole power battery just is in a kind of off state like this, so battery just can not be short-circuited, burning, explosion safety accident, thereby fail safe that has improved cell
According to power battery pack provided by the utility model, also comprise other necessary assembly that battery pack is required, and the assembly method of battery pack is conventionally known to one of skill in the art, do not repeat them here.
Although carefully described the utility model with reference to its specific execution mode, but it will be understood to those of skill in the art that, under the prerequisite of the spirit and scope of the present utility model that do not deviate from the claims qualification, can make various changes in form and details.
Claims (8)
1, a kind of battery pack comprises some cells and cell connector;
Connect by cell connector series connection or parallel connection or series-parallel connection between the cell;
It is characterized in that: the cell connector surface is provided with groove, the described groove safety effect that ruptured after being subjected to mechanical external force.
2, a kind of battery pack as claimed in claim 1, it is characterized in that: cell connector thickness is greater than 0.2 millimeter; Described cell connector width is greater than 2 millimeters.
3, a kind of battery pack as claimed in claim 1 is characterized in that: the degree of depth of cell connector groove is the 10%-95% of cell connector thickness; The length of described cell connector groove is the 50%-100% of cell connector width.
4, a kind of battery pack as claimed in claim 1 is characterized in that: described cell connector length direction is a directions X, and Width is the Y direction, and described groove becomes 0-60 degree angle with cell connector Y direction.
5, a kind of battery pack as claimed in claim 4 is characterized in that: described groove becomes 0 degree angle with cell connector Y direction.
6, a kind of battery pack as claimed in claim 1 is characterized in that: be provided with filler in the described groove.
7, a kind of battery pack as claimed in claim 6 is characterized in that: described filler is tin or conductive plastic or conductive rubber.
8, a kind of battery pack as claimed in claim 1 is characterized in that: the groove on the described cell connector is one or more of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202074796U CN201345384Y (en) | 2008-08-26 | 2008-11-01 | Battery pack |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820146848 | 2008-08-26 | ||
| CN200820146848.5 | 2008-08-26 | ||
| CN200820146851.7 | 2008-08-26 | ||
| CN200810142083.2 | 2008-08-26 | ||
| CN200810142082.8 | 2008-08-26 | ||
| CNU2008202074796U CN201345384Y (en) | 2008-08-26 | 2008-11-01 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201345384Y true CN201345384Y (en) | 2009-11-11 |
Family
ID=41276968
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202074796U Expired - Lifetime CN201345384Y (en) | 2008-08-26 | 2008-11-01 | Battery pack |
| CNU2008202074832U Expired - Lifetime CN201349038Y (en) | 2008-08-26 | 2008-11-01 | Battery and battery pack |
| CN2008101818182A Active CN101662004B (en) | 2007-12-25 | 2008-11-14 | Battery cover board assembly, battery and battery pack, and manufacture method thereof |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202074832U Expired - Lifetime CN201349038Y (en) | 2008-08-26 | 2008-11-01 | Battery and battery pack |
| CN2008101818182A Active CN101662004B (en) | 2007-12-25 | 2008-11-14 | Battery cover board assembly, battery and battery pack, and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN201345384Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610846A (en) * | 2011-01-21 | 2012-07-25 | 庄嘉明 | Battery cell, battery module incorporated with same and method for producing the battery module |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877413B (en) * | 2009-04-30 | 2013-10-30 | 比亚迪股份有限公司 | Monomer battery and power battery pack containing same |
| AT512028B1 (en) * | 2011-10-13 | 2015-06-15 | Avl List Gmbh | ELECTRIC ENERGY STORAGE |
| CN102569679A (en) * | 2011-12-30 | 2012-07-11 | 丁振荣 | Battery core, battery and method for sealing and fixing electrode and cap of battery |
| JP6950201B2 (en) * | 2016-04-25 | 2021-10-13 | 株式会社Ｇｓユアサ | Power storage element |
| JP2017199652A (en) * | 2016-04-25 | 2017-11-02 | 株式会社Ｇｓユアサ | Energy storage element |
| CN105958078B (en) * | 2016-06-27 | 2018-07-17 | 中银（宁波）电池有限公司 | Battery current collector |
| CN107204408B (en) * | 2017-06-05 | 2023-08-04 | 林州朗坤科技有限公司 | Full-lug square lithium battery and preparation method thereof |
| JP2019029225A (en) * | 2017-07-31 | 2019-02-21 | リチウム エナジー アンド パワー ゲゼルシャフト ミット ベシュレンクテル ハフッング ウント コンパニー コマンディトゲゼルシャフトＬｉｔｈｉｕｍ Ｅｎｅｒｇｙ ａｎｄ Ｐｏｗｅｒ ＧｍｂＨ ＆ Ｃｏ． ＫＧ | Power storage element |
| CN109841910B (en) * | 2019-02-28 | 2020-12-11 | 西安西电电气研究院有限责任公司 | Liquid metal battery |
| CN110247011A (en) * | 2019-07-13 | 2019-09-17 | 常州瑞德丰精密技术有限公司 | Battery cap with drainage function |
| CN110739416A (en) * | 2019-11-07 | 2020-01-31 | 多氟多新能源科技有限公司 | optimized novel lithium battery cover plate assembly |
| CN111341992A (en) * | 2020-03-13 | 2020-06-26 | 湖北亿纬动力有限公司 | Terminal assembly for current shunting |
| CN113903971A (en) * | 2021-09-26 | 2022-01-07 | 中安芯界(莱西)新能源科技有限公司 | Slat battery chip |
| CN114430086A (en) * | 2022-01-25 | 2022-05-03 | 东莞新能安科技有限公司 | Battery core subassembly and battery |
| DE102022209569A1 (en) | 2022-09-13 | 2024-03-14 | Mahle International Gmbh | High-voltage connection, battery module and procedure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754215Y (en) * | 2004-12-30 | 2006-01-25 | 比亚迪股份有限公司 | Cell |
| CN201374350Y (en) * | 2008-11-14 | 2009-12-30 | 比亚迪股份有限公司 | Battery, battery cover plate assembly and battery pack |
-
2008
- 2008-11-01 CN CNU2008202074796U patent/CN201345384Y/en not_active Expired - Lifetime
- 2008-11-01 CN CNU2008202074832U patent/CN201349038Y/en not_active Expired - Lifetime
- 2008-11-14 CN CN2008101818182A patent/CN101662004B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610846A (en) * | 2011-01-21 | 2012-07-25 | 庄嘉明 | Battery cell, battery module incorporated with same and method for producing the battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201349038Y (en) | 2009-11-18 |
| CN101662004A (en) | 2010-03-03 |
| CN101662004B (en) | 2012-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091111 |
|
| CX01 | Expiry of patent term |