CN205992560U - Heat dissipation battery bag - Google Patents

Heat dissipation battery bag Download PDF

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Publication number
CN205992560U
CN205992560U CN201621068485.9U CN201621068485U CN205992560U CN 205992560 U CN205992560 U CN 205992560U CN 201621068485 U CN201621068485 U CN 201621068485U CN 205992560 U CN205992560 U CN 205992560U
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CN
China
Prior art keywords
battery
bottom plate
battery bag
radiating bottom
battery module
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Active
Application number
CN201621068485.9U
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Chinese (zh)
Inventor
马克明
冯磊
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Ningbo Levi Energy Storage System Co Ltd
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Ningbo Levi Energy Storage System Co Ltd
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Priority to CN201621068485.9U priority Critical patent/CN205992560U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

This utility model disclose a kind of heat dissipation battery bag it is characterised in that:Including battery bag casing, radiating bottom plate and battery module, described battery module is installed in the space between battery bag casing and radiating bottom plate, and described radiating bottom plate is made using aluminum alloy materials, is provided with one layer of PI material between described radiating bottom plate and battery module.This utility model strengthens heat sinking function so that battery bag has good radiating effect by radiating bottom plate;And, it is covered with one layer of PI material between radiating bottom plate and battery module, achievable earth leakage protective and reach effective conduction of heat, increased the safety of battery bag.

Description

Heat dissipation battery bag
Technical field
This utility model design provides a kind of heat dissipation battery bag, belongs to lithium battery safety and energy storage field.
Background technology
With the extensive impact of energy issue of world and increasingly highlighting of problem of environmental pollution, the demand of new-energy automobile is got over Come bigger, the electric motor car as new-energy automobile becomes the main force of new-energy automobile with its zero exhaust emissions, and battery system is made For the core component of electric automobile, directly influence the service behaviour of electric automobile.
The advantages of lithium ion battery is because of its excellent energy density, power output feature and long-life, at present pure electronic Good application is obtained in car.But the performance of lithium ion battery is more sensitive to temperature change, use especially on pure electric vehicle Large Copacity, high-power lithium ion battery.Because needed for pure electric automobile, lithium battery quantity is more and loading space is limited, because And lithium battery is both needed to close-packed arrays connection and is combined into a battery module, when electric motor car is in different operating mode downward driving set of cells meetings With different multiplying electric discharge, produce amount of heats with different hot speed, accumulation over time and spacial influence can produce uneven Heat assemble, thus leading to battery module operating ambient temperature uneven, too high operating temperature and excessive temperature contrast, Battery system charge and discharge circulation life will be reduced, and when serious, also can cause thermal runaway, the safety and reliability of final impact.As The heat dispersion what reduces raising battery module is a problem anxious to be resolved.
Content of the invention
The purpose of this utility model is exactly the problems referred to above in order to solve prior art presence, thus providing a kind of radiating electricity Chi Bao, solve electric automobile automatic battery bag because the battery module temperature that freely do not lead to of radiating too high, impact battery bag uses The problem in life-span.
Technical solution of the present utility model is:A kind of heat dissipation battery bag it is characterised in that:Including battery bag casing, Radiating bottom plate and battery module, described battery module is installed in the space between battery bag casing and radiating bottom plate, described scattered Hot base plate is made using aluminum alloy materials, is provided with one layer of PI material between described radiating bottom plate and battery module.
Further, above-mentioned heat dissipation battery bag, wherein:Described PI material thickness is 0.01 ~ 0.04mm.
Further, above-mentioned heat dissipation battery bag, wherein:In described battery module each battery module at least side All this has aluminium sheet for side and bottom surface.
Yet further, above-mentioned heat dissipation battery bag, wherein:It is filled with epoxy resin between each battery module described.
This utility model has the technical effect that:This utility model by radiating bottom plate strengthen heat sinking function so that Battery bag has good radiating effect;And, it is covered with one layer of PI material between radiating bottom plate and battery module, can achieve that electric leakage is protected Protect and reach effective conduction of heat, increased the safety of battery bag.
Brief description
Fig. 1 is this utility model lithium battery air-cooled battery system structure design structure schematic diagram.
The implication of each reference of in figure is:1 battery bag casing, 2 radiating bottom plates, 3 battery modules, 31 aluminum Plate, 4 epoxy resin, 5 PI materials.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in further detail, so that this utility model skill Art scheme is more readily understood and grasps.
As shown in figure 1, only there is the structure heat such as relief valve positive pole position taking the battery module 3 of 18650 battery core compositions as a example Can conduct from negative pole, this utility model heat dissipation battery bag, battery bag casing 1, radiating bottom plate 2 and the battery being made up of multiple battery cores Module 3, is fixedly connected by screw between battery bag casing 1 and radiating bottom plate 2, and described battery module is installed on battery bag casing In space between 1 and radiating bottom plate 2.Radiating bottom plate is made using aluminum alloy materials, and aluminum alloy materials have good radiating Property, heat can be effectively conducted.Although aluminum is not the best metal of heat conductivity, heat-conducting effect is most preferably silver-colored, next to that copper, Thirdly it is only aluminum, but silver is expensive, unlikely brings and makees fin;Although copper has on radiating effect and price Advantage, heavier;And the weight of aluminum is very light, take into account heat conductivity and light weight two aspect, therefore select aluminum as heat conduction Optimal material.
It is covered with the polyimides that a layer thickness is 0.01 ~ 0.04mm between described radiating bottom plate 2 and the bottom of battery module 3 (PI material 7), thickness is preferably 0.02mm.This material has relatively low thermal resistance and insulate, achievable earth leakage protective and reaching Effectively conduction of heat.At least side side of described battery module 3 and bottom surface are equipped with aluminium sheet 31, for increasing battery module Heat dispersion.It is provided with epoxy resin 4, playing interfixes must act on, and reaches the effect of insulation between each battery module 3 described Really.
When the battery module 3 in battery bag produces larger heat because of charging and discharging, strengthen dissipating by radiating bottom plate 2 Hot merit energy, so that battery bag has good radiating effect, is covered with one layer of PI material between radiating bottom plate 2 and battery module 3, can Realize earth leakage protective and reach effective conduction of heat, increased the safety of battery bag.
It is representative instance of the present utility model above, in addition, this utility model can also have other multiple concrete The technical scheme that embodiment, all employing equivalents or equivalent transformation are formed, all falls within the model that this utility model claims Within enclosing.

Claims (4)

1. a kind of heat dissipation battery bag it is characterised in that:Including battery bag casing, radiating bottom plate and battery module, described battery mould Block is installed in the space between battery bag casing and radiating bottom plate, and described radiating bottom plate is made using aluminum alloy materials, described It is provided with one layer of PI material between radiating bottom plate and battery module.
2. heat dissipation battery bag according to claim 1 it is characterised in that:Described PI material thickness is 0.01 ~ 0.04mm.
3. heat dissipation battery bag according to claim 1 it is characterised in that:In described battery module, each battery module is extremely All this has aluminium sheet for few side side and bottom surface.
4. heat dissipation battery bag according to claim 1 it is characterised in that:It is filled with epoxy between each battery module described Resin.
CN201621068485.9U 2016-09-21 2016-09-21 Heat dissipation battery bag Active CN205992560U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621068485.9U CN205992560U (en) 2016-09-21 2016-09-21 Heat dissipation battery bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621068485.9U CN205992560U (en) 2016-09-21 2016-09-21 Heat dissipation battery bag

Publications (1)

Publication Number Publication Date
CN205992560U true CN205992560U (en) 2017-03-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621068485.9U Active CN205992560U (en) 2016-09-21 2016-09-21 Heat dissipation battery bag

Country Status (1)

Country Link
CN (1) CN205992560U (en)

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