CN101399387A - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN101399387A CN101399387A CNA2007101236401A CN200710123640A CN101399387A CN 101399387 A CN101399387 A CN 101399387A CN A2007101236401 A CNA2007101236401 A CN A2007101236401A CN 200710123640 A CN200710123640 A CN 200710123640A CN 101399387 A CN101399387 A CN 101399387A
- Authority
- CN
- China
- Prior art keywords
- battery
- battery pack
- battery box
- cooling
- box
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 17
- 239000012809 cooling fluid Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 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
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the field of batteries, in particular to a battery pack provided with a heat sink. The invention discloses a battery pack which comprises a battery box body and batteries, a plurality of battery chambers are arranged in the battery box body; the battery pack is characterized in that a plurality of mutually communicated hermetic cooling chambers are arranged around the battery chambers of the battery box body, and the cooling chambers are provided with cooling liquid. The battery pack effectively reduces the temperature of the batteries, prolongs the battery life, improves the cycle performance of the battery and increases the stability and safety of the battery pack. The battery pack can operate with high power for a long time, is suitable for various electric tools and electric vehicles, has simple structure and is suitable for mass production, popularization and application.
Description
Technical field
The present invention relates to field of batteries, be specifically related to the battery pack that a kind of design has heat abstractor.
Background technology
Lithium ion battery is with its high energy density, and characteristics such as good cycle life and environmental friendliness have obtained extensive use on electronic products such as portable communications.Because These characteristics, lithium ion battery also more and more is subjected to people's attention on the vehicles, also obtained preliminary application, and demonstrated good development momentum.But because lower conductivity of lithium ion battery electrolyte and lithium ion lower diffusion coefficient in material, make the lithium ion battery internal resistance higher relatively, thereby make that battery battery temperature when high current charge-discharge is higher, the higher battery self stability that is unfavorable for of temperature, high temperature is accelerated both positive and negative polarity and electrolytical negative reaction, also may cause the decomposition reaction of electrolyte self, these all will reduce battery capacity and useful life, also bring potential hazard to battery security, people on the one hand reduce caloric value in the battery circulation in the internal resistance of making great efforts to take measures to reduce battery, reduce battery temperature, measure comprises: select more good material, optimize the use of conductive agent, optimizing pole piece makes, optimize the design that lug in the battery structure etc. is located, preferred electrolyte waits realizes reducing internal resistance, this inherent measure also is necessary and effective, but act on limited, macrocell temperature under high current work raises inevitable, disperses the battery liberated heat this moment from the external world, the temperature of keeping battery also can play the effect of improving the battery circulation.
Summary of the invention
The purpose of this invention is to provide a kind of battery pack.Solve battery higher problem of battery temperature when high current charge-discharge, effectively increased battery life.
In order to achieve the above object, the technical solution used in the present invention is: a kind of battery pack, comprise battery box and battery, be provided with a plurality of battery compartments in the battery box, it is characterized in that, be provided with the sealing cooling storehouse of a plurality of mutual UNICOMs in battery box around the battery compartment, described cooling is placed cooling fluid in the storehouse.
Described cooling storehouse is provided with changes the liquid mouth.
Also be provided with the liquid level inductor on the described battery box.
Also be provided with temperature sensor on the described battery box.
Cooling storehouse in the described battery box is connected with inlet and liquid outlet.
Connect a circulating device between inlet in the described battery box and the liquid outlet.
Battery pack of the present invention, effectively reduce the temperature of battery, increased the life-span of battery, improved the cycle performance of battery, increased the stability and the fail safe of battery pack, can long-time high-power running, be applicable to that various electric tools and electric vehicle use, simple in structure, be fit to produce in enormous quantities and apply.
Description of drawings
Fig. 1 is a vertical view of the present invention;
Fig. 2 is along B-B hatching profile among Fig. 1;
Embodiment
Below with reference to accompanying drawing, by detailed description, so that technical scheme of the present invention and beneficial effect thereof are apparent to preferred embodiment of the present invention.
A kind of battery pack of the present invention, as shown in Figure 1, comprise battery box 1 and battery, be provided with several battery compartments 2 in the battery box 1, in battery box 1, be provided with the sealing cooling storehouse 3 of a plurality of mutual UNICOMs around the battery compartment 2, cooling storehouse 3 is connected with and changes liquid mouth 4, is used to discharge cooling fluid, and then removes the cooling fluid that more renews; Be filled with cooling fluid (not marking) in cooling in the storehouse 3, the mixed liquor etc. that can make water, ethylene glycol and water mixed liquid or propylene glycol and water is as coolant, also can have than specific heat coefficient and thermal stability and the higher liquid of chemical stability greatly for other; Also be provided with liquid level inductor 7, temperature sensor on the battery box 1, liquid level inductor 7 can be responded to cooling fluid liquid level height in the heat dissipation box, reminds the user to replenish cooling fluid; Cooling storehouse 3 in the battery box can also be connected with inlet 5 and liquid outlet 6, inlet 5 and liquid outlet 6 also are connected with a circulating device (not marking), can use pony pump as circulating driving device, cooling fluid enters battery pack through pony pump from inlet 5, flow out battery pack from liquid outlet 6, cooling fluid takes to outside air-cooled, thereby reaches good heat radiation cooling effect.
Battery is placed in the battery box 1 in the battery compartment 2, as shown in Figure 2, battery is done connection in series-parallel necessarily as required, for avoiding battery plus-negative plate to cause battery short circuit with contacting of battery box metal shell wall, the outer body of battery is all done insulation and is handled except that two poles, can use heat shrinkage film, insulation gummed paper etc., guarantee to insulate between battery and the heat dissipation box metal-back, each battery both positive and negative polarity up and down can connect by welding, can connect with lead by electrode column, for convenience detach, any one battery occurs when unusual, and dismounting and change is convenient to battery pack and is safeguarded fast.Battery does not contact mutually in the present embodiment, has avoided battery explosion to cause other battery explosions of periphery, thereby has caused even more serious destruction.
Battery pack in the present embodiment designs at cylindrical battery, places battery compartment and is circular cylindrical cavity, if rectangular cell can carry out corresponding change according to size, all belongs to the equivalent technologies conversion that the present invention is carried out.
Claims (6)
1, a kind of battery pack comprises battery box and battery, is provided with a plurality of battery compartments in the battery box, it is characterized in that, is provided with the sealing cooling storehouse of a plurality of mutual UNICOMs in battery box around the battery compartment, and described cooling is placed cooling fluid in the storehouse.
2, battery pack according to claim 1 is characterized in that, described cooling storehouse is provided with changes the liquid mouth.
3, battery pack according to claim 2 is characterized in that, described battery box is provided with temperature sensor.
4, according to claim 2 or 3 any described battery pack, it is characterized in that described battery box is provided with the liquid level inductor.
5, battery pack according to claim 1 is characterized in that, the cooling storehouse in the described battery box is connected with inlet and liquid outlet.
6, battery pack according to claim 5 is characterized in that, connects a circulating device between inlet in the described battery box and the liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101236401A CN101399387A (en) | 2007-09-29 | 2007-09-29 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101236401A CN101399387A (en) | 2007-09-29 | 2007-09-29 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101399387A true CN101399387A (en) | 2009-04-01 |
Family
ID=40517745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101236401A Pending CN101399387A (en) | 2007-09-29 | 2007-09-29 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101399387A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904383A (en) * | 2014-01-26 | 2014-07-02 | 上海汽车集团股份有限公司 | Battery module with fluid cooling passage |
| CN105118937A (en) * | 2014-05-15 | 2015-12-02 | F·波尔希名誉工学博士公司 | Battery module |
| WO2017000297A1 (en) * | 2015-07-02 | 2017-01-05 | 微宏动力系统（湖州）有限公司 | Battery group |
-
2007
- 2007-09-29 CN CNA2007101236401A patent/CN101399387A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904383A (en) * | 2014-01-26 | 2014-07-02 | 上海汽车集团股份有限公司 | Battery module with fluid cooling passage |
| CN105118937A (en) * | 2014-05-15 | 2015-12-02 | F·波尔希名誉工学博士公司 | Battery module |
| CN105118937B (en) * | 2014-05-15 | 2017-10-13 | F·波尔希名誉工学博士公司 | Battery module |
| WO2017000297A1 (en) * | 2015-07-02 | 2017-01-05 | 微宏动力系统（湖州）有限公司 | Battery group |
| CN107851861A (en) * | 2015-07-02 | 2018-03-27 | 微宏动力系统（湖州）有限公司 | A kind of battery pack |
| CN107851861B (en) * | 2015-07-02 | 2020-07-28 | 微宏动力系统（湖州）有限公司 | Battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090401 |