CN202721242U - Lithium-ion battery pack with good heat dissipation effect - Google Patents
Lithium-ion battery pack with good heat dissipation effect Download PDFInfo
- Publication number
- CN202721242U CN202721242U CN2012202897978U CN201220289797U CN202721242U CN 202721242 U CN202721242 U CN 202721242U CN 2012202897978 U CN2012202897978 U CN 2012202897978U CN 201220289797 U CN201220289797 U CN 201220289797U CN 202721242 U CN202721242 U CN 202721242U
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- battery pack
- ion battery
- heating panel
- lithium ion
- core body
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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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Abstract
The utility model relates to the field of lithium batteries, and discloses a lithium-ion battery pack with good heat dissipation effect. The lithium-ion battery pack with the good heat dissipation effect comprises a battery pack core, heat dissipation boards and an external fixed component, wherein the battery pack core is composed of a plurality of lithium-ion batteries, at least two opposite outer side faces of the battery pack core are respectively provided with one heat dissipation board, the heat dissipation boards are respectively attached to the outer side faces where the heat dissipation boards are positioned, and the battery pack core and the heat dissipation boards are fixed inside the external fixed component. The lithium-ion battery pack with the good heat dissipation effect is beneficial for improving the heat dissipation effect of the lithium-ion battery pack, and prolonging service life of the lithium-ion battery pack.
Description
Technical field
The utility model relates to the lithium ion battery field, particularly a kind of lithium ion battery group.
Background technology
In recent years, the fast development of high multiplying power lithium ion battery since have the operating voltage height, lightweight, volume is little, memory-less effect, self discharge are little, have extended cycle life etc., and characteristics, the particularly model of an airplane extensively adopt high multiplying power lithium ion battery.
The characteristics of the said equipment are exactly the large current work of instantaneous or continuous employing, because discharging current is large, the inner generation of battery pack temperature is also high, therefore requires the lithium ion battery group to have the heavy-current discharge characteristic and has simultaneously fast radiating effect.
But traditional battery pack can produce high temperature when discharge, because radiating effect is not good, hinder easily the inside battery structure.So that the easy bulging of battery pack, low, the dangerous height of finished product of life-span.
The utility model content
The utility model embodiment the first purpose is to provide a kind of lithium ion battery group, the radiating effect that it is conducive to improve the lithium ion battery group, the life-span that is conducive to improve the lithium ion battery group.
A kind of lithium ion battery group that the utility model embodiment provides comprises the battery pack core body and heating panel and the outer fixed part that are comprised of several lithium ion batteries,
At least two relative lateral surfaces at described battery pack core body are respectively equipped with a described heating panel, and each described heating panel is affixed with the lateral surface at this heating panel place respectively;
Described battery pack core body and heating panel are fixed in the described outer fixed part.
Alternatively, be respectively equipped with a described heating panel in all round side of described battery pack core body, four described lateral surfaces are relative in twos respectively.
Alternatively, described heating panel is two,
Two described heating panels are separately fixed on each lamination surface parallel two described lateral surfaces with described lithium ion battery,
Wherein, described lamination surface is each described assembling lithium ion battery together the time, and the described lithium ion battery of arbitrary neighborhood is relatively over against stacked side.
Alternatively, described heating panel is aluminium sheet.
Alternatively, the thickness of described heating panel is less than or equal to 5 millimeters more than or equal to 0.3 millimeter.
Alternatively, four of described heating panel angles are fillet.
Alternatively, the length of described heating panel and width are equal to or less than respectively length and the width of the described lateral surface at this described heating panel place.
Alternatively, described outer fixed part is made of the bandage that is bundled in described battery pack core body and heating panel periphery.
Alternatively, described bandage is adhesive tape.
Therefore, use the technical scheme of the utility model embodiment, since the battery pack core body 101 of present embodiment over against at least two lateral surfaces on be glued with respectively heating panel 102, so in battery pack core body 101 courses of work, particularly battery pack is in the heat that produces in the high-multiplying power discharge process and can goes out by these heating panel of being close to 102 Quick diffusings, be conducive to control the temperature of present embodiment lithium ion battery group, improve the application safety coefficient of lithium ion battery group.
In addition, since the battery pack core body 101 of present embodiment over against at least two lateral surfaces on be glued with respectively heating panel 102, and outside the integral body that heating panel 102 and battery pack core body 101 consist of, also be fixed with outer fixed part 103, in the process of battery pack core body 101 work, the heating panel 102 and the outer fixed part 103 that are positioned at the two opposite outer face can firmly be located battery pack core body 101, the cell expansion of control battery pack core body 101, thus avoid inside lithium ion cell excessive expansion in the battery pack core body 101 and cause lithium ion to playback and the phenomenon of the lost of life.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, does not consist of to improper restriction of the present utility model, in the accompanying drawings:
The packaging structure schematic diagram of a kind of lithium ion battery group that Fig. 1 provides for the embodiment of the invention;
A kind of lithium ion battery group that Fig. 2 provides for the embodiment of the invention is at structural representation.
Reference numeral:
Battery pack core body: 101; Heating panel: 102; Outer fixed part: 103.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
Embodiment 1:
Shown in Fig. 1,2, the lithium ion battery group that present embodiment provides mainly comprises battery pack core body 101, a plurality of heating panel 102 and outer fixed part 103.
Wherein battery pack core body 101 is for being combined by series connection or parallel connection or connection in series-parallel by a plurality of lithium-ion battery monomers.
As shown in Figure 1, 2, be fixed with two heating panels 102 at two lateral surfaces of battery pack core body 101, this two lateral surface be and battery pack core body 101 between arbitrary neighborhood two lithium ion batteries mutually over against the lateral surface of stacked parallel sided.This two heating panel 102 respectively only note be attached on the lateral surface of lithium ion battery core assembly body 101, be in contact with one another with it.
Outer fixed part 103 is fixed on the periphery of the integral body of battery pack core body 101 and two radiators formation, and battery pack core body 101 and two radiators are fixed together firmly, guarantees that heating panel 102 and battery pack core body 101 lateral surfaces closely are affixed.
Therefore, use the present embodiment technical scheme, since the battery pack core body 101 of present embodiment over against at least two lateral surfaces on be glued with respectively heating panel 102, so in battery pack core body 101 courses of work, particularly battery pack is in the heat that produces in the high-multiplying power discharge process and can goes out by these heating panel of being close to 102 Quick diffusings, be conducive to control the temperature of present embodiment lithium ion battery group, improve the application safety coefficient of lithium ion battery group.
In addition, since the battery pack core body 101 of present embodiment over against at least two lateral surfaces on be glued with respectively heating panel 102, and outside the integral body that heating panel 102 and battery pack core body 101 consist of, also be fixed with outer fixed part 103, in the process of battery pack core body 101 work, the heating panel 102 and the outer fixed part 103 that are positioned at the two opposite outer face can firmly be located battery pack core body 101, the cell expansion of control battery pack core body 101, thus avoid inside lithium ion cell excessive expansion in the battery pack core body 101 and cause lithium ion to playback and the phenomenon of the lost of life.
In order to further specify the effect of present embodiment, the inventor has carried out following test:
Battery pack model: P8542126, namely thickness is outer 85 millimeters, and width is 42 millimeters, and length is 126 millimeters battery, and the capacity of battery pack is 2600 milliamperes.
Control cell: fixed part 103 is fixing outside the periphery of battery core body 101 directly adopts;
Present embodiment battery: only be from the different of control cell: two lateral surfaces at battery core body 101 closely post respectively pure aluminum plate, and four jiaos of this pure aluminum plates are fillet, and four limits are straight flange, and the size of each pure aluminum plate is as follows:
Thickness is 1 millimeter, and width is 41 millimeters, and length is 120 millimeters.
Temperature test instrument is: infrared temperature sounder, sensing point are the battery core medium position of control cell and present embodiment battery;
After respectively 5 multiplying power dischargings being carried out in 5 of above-mentioned battery grab sample, then adopt low current charge, adopt the electric current of 20 times of nominal capacitys to carry out discharge cycles, obtain the data shown in the table one:
Table one: the maximum temperature in circulating battery number of times and the cyclic process detects tables of data
Therefore, adopt the present embodiment technical scheme to be conducive to greatly improve the radiating effect of battery pack core body 101 and the life-span of improving the lithium ion battery group.
In addition, battery pack core body 101 at least two relative side be fixed with fin, this fin can also play the effect of protection battery pack core body 101, the generation of the phenomenon such as avoid scratch or pierce through, and be conducive to improve the outward appearance of lithium ion battery group.
In addition, this two heating panel 102 also helps the packing fixing operation of locating battery pack core body 101 and being convenient to outer fixed part 103 in the process of producing, and is conducive to improve manufacturing efficient.
Need to prove, present embodiment Fig. 1,2 take only on two parallel with the lamination surface of battery pack core body 101 on the battery pack core body 101 lateral surfaces fixing cooling fins analyze as example, but be not limited in this, for example can also be close to respectively at four lateral surfaces all around of square battery pack core body 101 and fix a heating panel 102, adopt this technical scheme can further improve the radiating efficiency of lithium ion battery group.
Above-mentioned heating panel 102 can be various sheet metals, and this can select excellent in heat dissipation effect and lightweight aluminium sheet as heating panel 102 in the present embodiment, and the pure aluminum plate that preferably adopt smooth surface, is not easy to be out of shape is as heating panel 102.
The thickness of heating panel 102 can be set to be equal to or greater than 0.3 millimeter and be equal to or less than 5 millimeters in the present embodiment.Adopt this thickness to obtain good equilibrium at radiating effect and weight.
Size design teacher at heating panel 102, can be so that the size of heating panel 102 equals or is slightly less than the length and width of the lateral surface of battery pack core body 101, thereby when guaranteeing area of dissipation, again can be owing to the outstanding location that affects battery pack core body 101 of heating panel 102 areas is fixed.
When the design of the shape of heating panel 102, four jiaos of heating panel 102 are designed to fillet, four limits are designed to straight flange, have preferably aesthetic property on the one hand, avoid on the other hand the right angle to 101 punctures of battery pack core body and produce fraction defective.
Outer fixed part 103 in the present embodiment can be for being bundled in the bandage of battery pack core body 101 and heating panel 102 peripheries.This bandage can but be not limited to adhesive tape or agate draws adhesive tape.
Carrying out outer fixed part 103 fixedly the time, can but be not limited to from top and the bottom of the short transverse of battery pack core body 101, perhaps also bundle fixingly in the middle part, effectively to firmly fix battery pack and fin, it is firmly fixed together.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on embodiment and range of application, in sum, this description should not be construed as restriction of the present utility model.
Claims (9)
1. a lithium ion battery group is characterized in that, comprises the battery pack core body and heating panel and the outer fixed part that are comprised of several lithium ion batteries,
At least two relative lateral surfaces at described battery pack core body are respectively equipped with a described heating panel, and each described heating panel is affixed with the lateral surface at this heating panel place respectively;
Described battery pack core body and heating panel are fixed in the described outer fixed part.
2. lithium ion battery group according to claim 1 is characterized in that,
Be respectively equipped with a described heating panel in all round side of described battery pack core body, four described lateral surfaces are relative in twos respectively.
3. lithium ion battery group according to claim 1 is characterized in that,
Described heating panel is two,
Two described heating panels are separately fixed on each lamination surface parallel two described lateral surfaces with described lithium ion battery,
Wherein, described lamination surface is each described assembling lithium ion battery together the time, and the described lithium ion battery of arbitrary neighborhood is relatively over against stacked side.
4. according to claim 1 and 2 or 3 described lithium ion battery groups, it is characterized in that,
Described heating panel is aluminium sheet.
5. according to claim 1 and 2 or 3 described lithium ion battery groups, it is characterized in that,
The thickness of described heating panel is less than or equal to 5 millimeters more than or equal to 0.3 millimeter.
6. according to claim 1 and 2 or 3 described lithium ion battery groups, it is characterized in that,
Four angles of described heating panel are fillet.
7. according to claim 1 and 2 or 3 described lithium ion battery groups, it is characterized in that,
The length of described heating panel and width are equal to or less than respectively length and the width of the described lateral surface at this described heating panel place.
8. according to claim 1 and 2 or 3 described lithium ion battery groups, it is characterized in that,
Described outer fixed part is made of the bandage that is bundled in described battery pack core body and heating panel periphery.
9. lithium ion battery group according to claim 8 is characterized in that,
Described bandage is adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202897978U CN202721242U (en) | 2012-06-19 | 2012-06-19 | Lithium-ion battery pack with good heat dissipation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202897978U CN202721242U (en) | 2012-06-19 | 2012-06-19 | Lithium-ion battery pack with good heat dissipation effect |
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| Publication Number | Publication Date |
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| CN202721242U true CN202721242U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202897978U Expired - Lifetime CN202721242U (en) | 2012-06-19 | 2012-06-19 | Lithium-ion battery pack with good heat dissipation effect |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296233A (en) * | 2013-06-14 | 2013-09-11 | 上海航天电源技术有限责任公司 | Light-weight lithium-ion battery module for vehicles |
| WO2022149899A1 (en) * | 2021-01-11 | 2022-07-14 | 주식회사 엘지에너지솔루션 | Battery module and battery pack comprising same |
| WO2022177178A1 (en) * | 2021-02-16 | 2022-08-25 | 주식회사 엘지에너지솔루션 | Battery module and battery pack including same |
-
2012
- 2012-06-19 CN CN2012202897978U patent/CN202721242U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296233A (en) * | 2013-06-14 | 2013-09-11 | 上海航天电源技术有限责任公司 | Light-weight lithium-ion battery module for vehicles |
| WO2022149899A1 (en) * | 2021-01-11 | 2022-07-14 | 주식회사 엘지에너지솔루션 | Battery module and battery pack comprising same |
| WO2022177178A1 (en) * | 2021-02-16 | 2022-08-25 | 주식회사 엘지에너지솔루션 | Battery module and battery pack including same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |