CN202268394U - Battery pack with heat insulation device - Google Patents
Battery pack with heat insulation device Download PDFInfo
- Publication number
- CN202268394U CN202268394U CN2011203758408U CN201120375840U CN202268394U CN 202268394 U CN202268394 U CN 202268394U CN 2011203758408 U CN2011203758408 U CN 2011203758408U CN 201120375840 U CN201120375840 U CN 201120375840U CN 202268394 U CN202268394 U CN 202268394U
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- China
- Prior art keywords
- adiabatic
- battery module
- heat insulation
- air bag
- battery
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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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack with a heat insulation device, which comprises a casing, a battery module contained in the casing and the heat insulation device located between the battery module and the casing. The battery module is formed by connecting a plurality of single batteries or battery groups in series or parallel mode. The heat insulation device comprises a heat insulation inflatable bag matched with the battery module in shape and heat insulation gas filled in the heat insulation inflatable bag. Compared with polyethylene foams, mineral cottons and other materials which serve as heat insulation materials in the prior art, the heat insulation device has better heat insulation effect on the battery module due to the fact that heat conductivity of the heat insulation gas is generally smaller than that of solids. After the heat insulation device bears pressure of the battery module, heat insulation effect is not affected, and the battery pack is long in service life. In addition, the heat insulation inflatable bag and the heat insulation gas in the heat insulation inflatable bag have small effect on volume and weight of the batteries.
Description
Technical field
The utility model belongs to the energy-storage battery field, relates in particular to a kind of power brick with adiabatic apparatus.
Background technology
Ambient temperature has great influence for the charge-discharge performance and the life-span of battery; Concerning lithium ion battery; Its desirable working temperature is between 25-30 ℃; When around ambient temperature be low to moderate-20 ℃ the time, the discharge performance of battery can reduce 20-30% with respect to the discharge performance under desirable working temperature; And under high-temperature condition, lithium ion battery can significantly shorten the life-span, even might blast.Therefore, for improve battery under high and low temperature environment serviceability and improve useful life, provide heat management system extremely urgent with heating and cooling function; But; If with carrying out insulation between battery module and the external environment, the portion of energy that produces when heating or cooling can not propagate in the middle of the air through the shell of battery module, shell is processed by metals such as box hats usually; And the heat-conductive characteristic of metal is very high; Thereby cause energy waste, heating or cooling effectiveness reduce, and have a strong impact on the practical feasibility of battery module heating or cooling.The utility model just is being based on avoids undesirable heat conducting purpose in the battery module.
At present; The conventional battery bag adopts heat-insulating materials such as polyethylene, polyurethane foam, mineral wool to be filled between battery module and the shell usually; Utilize the porosity characteristic of these materials; Make battery module and external environment isolated, extraneous temperature can not have influence on battery module inside, and the temperature in the battery module can not be dispersed into the external world yet simultaneously.But traditional heat-insulating material receives the pressure influence of battery module after long-time the use, moulding distortion takes place; Its porosity characteristic weakens, and the air in the hole is compressed eliminating, and insulation effect reduces greatly; For example the thermal conductivity of polyethylene is about 0.056W/ (mK), and poly thermal conductivity is between 0.35-0.5 W/ (mK), and both differ nearly 10 times; After polyethylene was compressed, insulation effect obviously weakened, the adiabatic apparatus that need more renew.
Summary of the invention
The utility model causes the insulation effect variation for the adiabatic apparatus that solves existing power brick uses the easy compression in back for a long time; Adiabatic apparatus short technical problem in useful life; A kind of power brick with adiabatic apparatus is provided; This seal can keep the well insulated effect for a long time, is difficult for compression, long service life.
For achieving the above object; The utility model provides a kind of power brick with adiabatic apparatus; Comprise shell, be contained in the interior battery module of shell, reach the adiabatic apparatus between battery module and shell; Said battery module is formed by some cells or battery pack series/parallel, and said adiabatic apparatus comprises with the suitable adiabatic air bag of the profile of said battery module and is filled in the adiabatic gas in the said adiabatic air bag.
Preferably, said adiabatic air bag is provided with air admission hole and steam vent, and the loading of the adiabatic gas in the said adiabatic air bag can be adjusted through air admission hole and steam vent.
Preferably, said air admission hole and steam vent are same hole.
Preferably, said adiabatic air bag comprises the outer wall that inwall is peripheral with being positioned at inwall, between the said inner and outer wall through being welded to connect.
Preferably, said adiabatic air bag is a kind of in PP, PVC, PET, PEPA, PPS, PS, the TPE bag.
Preferably, said adiabatic gas is one or more in air, oxygen, the carbon dioxide.
Preferably, said adiabatic gas is an air.
Preferably, said adiabatic air bag comprises first air bag and second air bag, forms cavity after said first air bag and second air bag are interlocked, and said battery module is positioned at said cavity.
Preferably, said battery module is hexahedron, and six faces of said battery module are respectively equipped with a said adiabatic air bag.
The utlity model has following beneficial effect:
1, with respect to prior art as materials such as the polyethylene of adiabatic apparatus, mineral wools because the thermal conductivity of adiabatic gas is generally less than the thermal conductivity of solid, the adiabatic apparatus of the utility model plays better heat insulating function to battery module.
2, after the adiabatic apparatus of the utility model received the pressure of battery module, insulation effect was unaffected, long service life.
3, adiabatic air bag and inner adiabatic gas thereof influence very little to volume of battery and weight.
Description of drawings
Fig. 1 is the part cross-sectional schematic of the battery with adiabatic apparatus that provides of the utility model.
Fig. 2 is the cutaway view on A-A plane among Fig. 1.
Mark among the figure:
1-battery module, 11-battery pack, 111-cell,
The 2-shell,
The adiabatic air bag of 3-, 31-first air bag, 32-inwall, 33-outer wall,
The 4-adiabatic gas,
5-heat management system, 51-thermal source or low-temperature receiver.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.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.
Consult Fig. 1 and Fig. 2; A kind of power brick with adiabatic apparatus; Comprise shell 2, be contained in battery module 1 in the shell 2, and the adiabatic apparatus between battery module 1 and shell 2; Said battery module 1 is formed by some cells or battery pack series/parallel, and said adiabatic apparatus comprises with the suitable adiabatic air bag 3 of the profile of said battery module 1 and is filled in the adiabatic gas 4 in the said adiabatic air bag 3.
The shell 2 and the battery module 1 of the utility model are conventionally known to one of skill in the art, and shell 2 can be selected box hat or aluminum hull for use, and shell 2 is the hexahedron type, and its concrete structure can be that six blocks of plates are coupled together through modes such as welding; The main casing of one band opening also can be set earlier, at opening part cover plate be set then.Electricity core group can be to be formed by some cell series/parallels, also can be to be formed by some battery pack series/parallels, and the battery module 1 of present embodiment is formed by some battery pack 11 series/parallels, and each battery pack 11 is provided with battery case in its outside; Accommodate some cells 111 in the inside of battery case, this cell 111 carries out series/parallel and connects.
Consult Fig. 2; The shape of adiabatic air bag 3 and the profile of battery module 1 are suitable; Wherein a kind of concrete condition is; Adiabatic air bag 3 comprises first air bag 31 and second air bag (not shown), forms cavity after said first air bag 31 and second air bag are interlocked, and said battery module 1 is positioned at said cavity.Only show first air bag 31 among Fig. 2; First air bag 31 is grooved; Second air bag is identical with the structure of first air bag 31, when both install, earlier battery module 1 is put into the groove of first air bag 31; Then second air bag is tipped upside down on first air bag 31, battery module 1 is just among the cavity that forms between first air bag 31 and second air bag like this.Certainly be not limited to this; Can also be following situation: first air bag 31 be grooved, and second air bag is the cover plate shape, and the second inflation pkt. flap is on first air bag 31; Thereby form cavity between first air bag 31 and second air bag, battery module 1 is positioned at cavity.
Among the other embodiment of the utility model, said battery module 1 is hexahedron, and six faces of said battery module 1 are respectively equipped with a said adiabatic air bag 3.
The material that can be used as adiabatic air bag 3 comprises thermoplastics PP, PVC, PET, PEPA, PPS, PS, TPE etc., adopts thermoplastics to have convenient formation, the advantage that cost is low.Above-mentioned thermoplastics forms the film with definite shape through injection moulding, plastic uptake or blow molding process; Double-layer films is superimposed; Around film, through welding double-layer films is linked together then, welding manner can be selected the pre-buried welding of laser welding, ultrasonic bonding, sweat soldering or resistance wire for use, after linking together around the double-layer films; Form annular seal space wherein; Be used to fill adiabatic gas 4, this double-layer films then is the inwall 32 and outer wall 33 of adiabatic air bag 3, and adiabatic air bag 3 is put between battery module 1 and the shell 2; Near the inwall that is adiabatic air bag 3 32 of battery module 1 one sides, near the outer wall that is adiabatic air bag 3 33 of shell 2 one sides.
Air admission hole (not shown) and steam vent (not shown) preferably are set on the outer wall 33 of corresponding annular seal space, are used to adjust the loading of adiabatic gas 4, air admission hole and steam vent can be the forms of valve, and stretch out in outside the shell 2, make things convenient for tonifying Qi and exhaust.Certainly air admission hole and steam vent also can be same holes.When adiabatic air bag 3 finds to have a small amount of adiabatic gas 4 to lose in use a period of time; Perhaps when the ambient temperature close friend need not carry out thermal insulation to battery; In the time of perhaps need adjusting, just can give adiabatic air bag 3 tonifying Qi or exhaust through devices such as air guns to the heat-insulating property of adiabatic apparatus.Should be appreciated that when tonifying Qi or exhaust to have only the thickness of adiabatic air bag 3, promptly the distance between inwall 32 and the outer wall 33 changes, but the width of adiabatic air bag 3 and length do not change.
In general, the thermal conductivity of solid is higher than the thermal conductivity of liquid, and the thermal conductivity of liquid is higher than the thermal conductivity of gas, therefore selects for use adiabatic gas 4 as the medium of filling in the adiabatic air bag 3, can further play isolation conduction, thermal convection and thermal-radiating effect.Adiabatic gas 4 can be one or more in air, oxygen, the carbon dioxide.The thermal conductivity of its air is 0.023W/ (mK), is rare renewable resource, adopts air as adiabatic gas 4, and is with low cost, nuisanceless, pollution-free.
Consult Fig. 2; As a preferred embodiment; Power brick with adiabatic apparatus also can further comprise heat management system 5; This heat management system 5 is heating module known in the art and/or refrigerating module, and heating module can be PTC heating, hot blast heating, heat pipe heating, refrigerant heating, phase-change material heating, and refrigerating module can be liquid cooling, air-cooled, tube-cooled, refrigerant cooling, phase-change material cooling.Heating module and refrigerating module carry out heating and cooling to battery module 1, thereby under low temperature and hot environment, make battery reach desirable working temperature quickly.An end that is positioned at battery at the thermal source or the low-temperature receiver 51 of the present embodiment shown in Fig. 2; Heating tube that is used to heat or the liquid that is used to cool off are arranged between battery module 1 inside or battery module 1 and the adiabatic air bag 3, and the arrow among the figure is represented the flow direction of cooling liquid.
The adiabatic apparatus of the utility model can also play the effect of balancing battery module 1 heat except having the effect of isolation conduction.Do not having under the situation of adiabatic apparatus; Battery is in the process of work; The heat that is distributed between each cell 111 or each battery pack 11 in the battery module 1 is identical, but near the battery cell in the outside or battery pack 11 because the radiating rate piece, so battery is lower near the regional temperature in the outside; And the temperature at center is higher, thus the uneven situation of appearance temperature.After adiabatic apparatus was set, heat transmission can not take place in the battery in the outside, and the temperature convergence between each cell 111 or the battery pack 11 is consistent, had realized the thermal balance of battery module 1.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (9)
1. power brick with adiabatic apparatus; Comprise shell, be contained in the interior battery module of shell, reach the adiabatic apparatus between battery module and shell; Said battery module is formed by some cells or battery pack series/parallel, it is characterized in that: said adiabatic apparatus comprises with the suitable adiabatic air bag of the profile of said battery module and is filled in the adiabatic gas in the said adiabatic air bag.
2. the power brick with adiabatic apparatus as claimed in claim 1 is characterized in that: said adiabatic air bag is provided with air admission hole and steam vent, and the loading of the adiabatic gas in the said adiabatic air bag can be adjusted through air admission hole and steam vent.
3. the power brick with adiabatic apparatus as claimed in claim 2 is characterized in that: said air admission hole and steam vent are same hole.
4. the power brick with adiabatic apparatus as claimed in claim 1 is characterized in that: said adiabatic air bag comprises the outer wall that inwall is peripheral with being positioned at inwall, between the said inner and outer wall through being welded to connect.
5. the power brick with adiabatic apparatus as claimed in claim 1 is characterized in that: said adiabatic air bag is a kind of in PP, PVC, PET, PEPA, PPS, PS, the TPE bag.
6. the battery module bag with adiabatic apparatus as claimed in claim 1 is characterized in that: said adiabatic gas is one or more in air, oxygen, the carbon dioxide.
7. the power brick with adiabatic apparatus as claimed in claim 6 is characterized in that: said adiabatic gas is an air.
8. the power brick with adiabatic apparatus as claimed in claim 1; It is characterized in that: said adiabatic air bag comprises first air bag and second air bag; Form cavity after said first air bag and second air bag are interlocked, said battery module is positioned at said cavity.
9. the power brick with adiabatic apparatus as claimed in claim 1 is characterized in that: said battery module is hexahedron, and six faces of said battery module are respectively equipped with a said adiabatic air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203758408U CN202268394U (en) | 2011-09-28 | 2011-09-28 | Battery pack with heat insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203758408U CN202268394U (en) | 2011-09-28 | 2011-09-28 | Battery pack with heat insulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202268394U true CN202268394U (en) | 2012-06-06 |
Family
ID=46159178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203758408U Expired - Lifetime CN202268394U (en) | 2011-09-28 | 2011-09-28 | Battery pack with heat insulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202268394U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972579A (en) * | 2013-01-25 | 2014-08-06 | 低碳动能开发股份有限公司 | Manufacturing method for secondary battery heat energy conduction blocking |
| CN107528016A (en) * | 2016-06-20 | 2017-12-29 | 北汽福田汽车股份有限公司 | Battery case and there is its vehicle |
| CN104218194B (en) * | 2014-07-30 | 2018-05-04 | 浙江超威创元实业有限公司 | A kind of lithium battery with fireproof anti-explosion device and the electric car using the battery |
| CN109119728A (en) * | 2017-06-22 | 2019-01-01 | 罗伯特·博世有限公司 | Battery module and its application and the method for manufacturing battery module |
| CN114122588A (en) * | 2021-11-11 | 2022-03-01 | 比亚迪股份有限公司 | Battery and battery pack |
| DE102022108573A1 (en) | 2022-04-08 | 2023-10-12 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle with a fillable mat |
| WO2023197907A1 (en) * | 2022-04-14 | 2023-10-19 | 宁德时代新能源科技股份有限公司 | Energy storage prefabricated box and battery swapping station |
-
2011
- 2011-09-28 CN CN2011203758408U patent/CN202268394U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972579A (en) * | 2013-01-25 | 2014-08-06 | 低碳动能开发股份有限公司 | Manufacturing method for secondary battery heat energy conduction blocking |
| CN104218194B (en) * | 2014-07-30 | 2018-05-04 | 浙江超威创元实业有限公司 | A kind of lithium battery with fireproof anti-explosion device and the electric car using the battery |
| CN107528016A (en) * | 2016-06-20 | 2017-12-29 | 北汽福田汽车股份有限公司 | Battery case and there is its vehicle |
| CN107528016B (en) * | 2016-06-20 | 2020-03-24 | 北汽福田汽车股份有限公司 | Battery box and have its vehicle |
| CN109119728A (en) * | 2017-06-22 | 2019-01-01 | 罗伯特·博世有限公司 | Battery module and its application and the method for manufacturing battery module |
| CN114122588A (en) * | 2021-11-11 | 2022-03-01 | 比亚迪股份有限公司 | Battery and battery pack |
| DE102022108573A1 (en) | 2022-04-08 | 2023-10-12 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle with a fillable mat |
| WO2023197907A1 (en) * | 2022-04-14 | 2023-10-19 | 宁德时代新能源科技股份有限公司 | Energy storage prefabricated box and battery swapping station |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |