CN105680118A - Heat dissipation structure of flexible package lithium ion battery pack - Google Patents

Heat dissipation structure of flexible package lithium ion battery pack Download PDF

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Publication number
CN105680118A
CN105680118A CN201610193959.0A CN201610193959A CN105680118A CN 105680118 A CN105680118 A CN 105680118A CN 201610193959 A CN201610193959 A CN 201610193959A CN 105680118 A CN105680118 A CN 105680118A
Authority
CN
China
Prior art keywords
lithium ion
ion battery
plate
battery pack
supporting plate
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
Application number
CN201610193959.0A
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Chinese (zh)
Inventor
左新渠
刘保梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENAN HUANYU NEW ENERGY TECHNOLOGY Co Ltd
Original Assignee
HENAN HUANYU NEW ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HENAN HUANYU NEW ENERGY TECHNOLOGY Co Ltd filed Critical HENAN HUANYU NEW ENERGY TECHNOLOGY Co Ltd
Priority to CN201610193959.0A priority Critical patent/CN105680118A/en
Publication of CN105680118A publication Critical patent/CN105680118A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6551Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

The invention discloses a heat dissipation structure of a flexible package lithium ion battery pack. The heat dissipation structure comprises a lithium ion battery positive tab and a lithium ion battery negative tab, wherein a U-shaped long hole is respectively formed in the flexible package lithium ion battery positive tab and the flexible package lithium ion battery negative tab; a PCB fixed plate is arranged above the U-shaped long holes; a fixed supporting plate is provided with a fixed claw which is firmly combined with the PCB fixed plate to form a rigid flat supporting surface; a circular hole for assembling a heat conduction silicone strip is formed in the flat supporting surface of the PCB fixed plate; a cooling fin is arranged on the heat conduction silicone strip; and assembling holes formed in the fixed supporting plate, the heat conduction silicone plate and the cooling fin are concentric, and the fixed supporting plate, the heat conduction silicone plate and the cooling fin are compressed by utilizing screws by virtue of an insulation sleeve and a spring gasket installed on the insulation sleeve so as to be fixed to the positive and negative tabs of a battery cell. The heat dissipation structure of the flexible package lithium ion battery pack is small in size and light in weight; and the aluminum cooling fin can take away a given amount of heat produced by the battery, and thus a good effect of lowering the temperature of the battery pack is achieved.

Description

The heat radiation structure of a kind of lithium ion battery pack
Technical field:
The present invention relates to field of batteries, especially it is used in when Li-ion batteries piles uses and reduces heat, reduce the problem of series of cells intensification.
Background technology:
Along with technology progressively maturation and the national promotion to new forms of energy of lithium ion battery, more and more auto vendors and energy storage producer start to develop electromobile and new forms of energy accumulator system, the electromobile that part is special and accumulator system need high charge-discharge magnification, the thermal value improving battery later due to charge-discharge magnification can increase, therefore, first the positive and negative polarization Zhengyuan material of inside lithium ion cell is considered when designing Li-ion batteries piles, the materials such as electrolytic solution have the material of high power charging-discharging ability, technique also increases the charging and discharging capabilities of battery by reducing the compacted density of pole piece. and how the array mode of series of cells could reduce the thermal value of lithium ion battery, heat radiation structure needs to consider, the overcurrent capability of flexible-packed battery group lug in the process of discharge and recharge is relatively weak, add the heating of the contact internal resistance after crimping, therefore the thermal value of lug crimping place is bigger, it is necessary to have a heat radiation structure heat radiation preferably. the patent No. 2014200891317 that State Patent Office is authorized, title " a kind of lithium-ion-power cell efficient radiating apparatus " its heat radiation structure is the U-shaped heat pipe being perfused with working liquid by inside, collection flat heat, radiating fin group carries out the heat radiation to series of cells, its shortcoming is, this structure occupies the dimensional space between cell thickness, volume is bigger, and the volume energy ratio of series of cells is required more and more higher by electromobile, thus the volume of radiator portion can not be too big, otherwise the course continuation mileage that can cause electromobile is short, actual people cannot be met to the continuation of the journey requirement of electromobile.
How avoiding series of cells entirety heating, but also want volume little, weight is light, is the target of those skilled in the art's Continual Improvement and innovation.
Summary of the invention:
The task of the present invention proposes one to avoid series of cells entirety heating, and structure is simple, volume is little, improves the heat radiation structure of a kind of lithium ion battery pack in series of cells life-span simultaneously.
The task of the present invention completes like this, it is just comprising lithium ion battery, negative electrode lug, it is characterized in that: flexible packing lithium ion battery is just, negative electrode lug respectively has U-shaped long hole, it is placed with PCB retaining plate above described U-shaped long hole, fixing supporting plate is provided with the fixed jaw with PCB retaining plate mortise and forms hard flat support face, the flat support face of described PCB retaining plate is provided with the circular hole of assembling thermal conductive silicon adhesive tape, it is placed with radiator element above described thermal conductive silicon adhesive tape, described fixing supporting plate, the assembling hole arranged on thermal conductive silicon offset plate and radiator element is compressed by the compression spring screw of the upper dress of insulation covering and its with one heart and the positive and negative electrode lug of battery core is fixed. the position at described fixing supporting plate four angles is provided with fixed jaw, the plate face of fixing supporting plate is provided with screw, between described screw spaced apart, fixing supporting plate connects mortise by the fixed jaw on it and PCB retaining plate by tin welding to form hard flat support face. the shape of radiator element is such as comb shape, and there is disconnection the discontinuous centre of comb, and disconnection place is that insulation covering is installed in convenient insertion, and described radiator element adopts aluminium to make. being provided with screw hole on thermal conductive silicon offset plate, thermal conductive silicon offset plate is that soft state silica gel makes. the material that insulation covering makes selects nylon to make, and the top of insulation covering is provided with a limited step, and described insulation covering is assemblied in radiator element comb disconnection place, and the limited step on insulation covering is stuck in the root of comb just.
The present invention has following effect: the present invention has a certain amount of heat that volume is little, weight light, aluminium radiator fin can send battery and takes away, and serves the temperature rise effect well reducing series of cells.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of soft packaging radiation structure combination Li-ion batteries piles, and Fig. 2 is the side-view of Fig. 1; Fig. 3 is the vertical view of Fig. 1; Fig. 4 is Fig. 2 A place structure enlarged diagram; Fig. 5 is Figure 1B place structure enlarged diagram; Fig. 6 is fixing support board structure schematic diagram; Fig. 7 is the structural representation of radiator element; Fig. 8 is the structural representation of thermal conductive silicon offset plate; Fig. 9 is the structural representation of insulation covering.
Figure face illustrates: 1, flexible packing lithium ion battery, 1-3, U-shaped long hole, 2, PCB retaining plate, 3, fixing supporting plate, and 3-1, fixed jaw, 3-2, screw, 4, thermal conductive silicon offset plate, 5, radiator element, 5-1, comb shape, 6, insulation covering, 6-1, limited step, 7, screw, 8, compression spring.
Embodiment:
The technical program is applicable to series-parallel connection crimping combination Li-ion batteries piles, also comprise flexible packing lithium ion battery 1, the heat that battery can be sent is crossed lug and is conducted to thermal conductive silicon offset plate, then directly conduct to radiator element by thermal conductive silicon offset plate, rapidly heat is fallen apart away by radiator element, avoid series of cells entirety heating, serve the problem of temperature rise well reducing series of cells, thus improve the life-span of series of cells.
Embodiment is described by reference to the accompanying drawings in detail, flexible packing lithium ion battery is just, negative electrode lug respectively has U-shaped long hole 1-3, it is placed with PCB retaining plate 2 above described U-shaped long hole, described PCB retaining plate is dual platen, dual platen is all covered with copper tin coating, fixing supporting plate is provided with the fixed jaw 3-1 with PCB retaining plate mortise and forms hard flat support face, the flat support face of described PCB retaining plate is provided with the circular hole of assembling thermal conductive silicon adhesive tape 4, it is placed with radiator element 5 above described thermal conductive silicon adhesive tape, described fixing supporting plate 3, the assembling hole arranged on thermal conductive silicon offset plate 4 and radiator element 5 is with one heart by insulation covering 6, the positive and negative electrode lug that compression spring 8 screw 7 compression and battery core are housed on it is fixed.
The position at described fixing supporting plate 3 four angles is provided with fixed jaw (as shown in Figure 6), the plate face of fixing supporting plate is provided with screw 3-2, between described screw spaced apart, fixing supporting plate connects mortise by the fixed jaw on it and PCB retaining plate by tin welding to form hard flat support face.
As shown in Figure 7, the shape of radiator element is such as comb shape, and there is disconnection the discontinuous centre of comb for described radiator element 5, disconnection place is that insulation covering 6 is installed in convenient insertion, radiator element adopts aluminium to make, and the certain heat that really battery can be sent is taken away, and serves the problem of temperature rise well reducing series of cells.
Described thermal conductive silicon offset plate 4 as shown in Figure 8, for insulation and heat trnasfer, thermal conductive silicon offset plate 4 is provided with screw hole, and thermal conductive silicon offset plate is that soft state silica gel makes.
Described insulation covering 6 is as shown in Figure 9, the preferred nylon of the material that insulation covering makes makes, and the top of insulation covering is provided with a limited step 6-1, and described insulation covering is assemblied in radiator element comb disconnection place, limited step 6-1 on insulation covering is stuck in the root of comb just, plays the effect of insulation.
The technical program carries out clear, complete description. Described embodiment is only a part of embodiment of the present invention, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making under creative prerequisite other embodiment obtained, belong to the scope of protection.

Claims (5)

1. the heat radiation structure of a lithium ion battery pack, it is just comprising lithium ion battery, negative electrode lug, it is characterized in that: flexible packing lithium ion battery is just, negative electrode lug respectively has U-shaped long hole, it is placed with PCB retaining plate above described U-shaped long hole, fixing supporting plate is provided with the fixed jaw with PCB retaining plate mortise and forms hard flat support face, the flat support face of described PCB retaining plate is provided with the circular hole of assembling thermal conductive silicon adhesive tape, it is placed with radiator element above described thermal conductive silicon adhesive tape, described fixing supporting plate, the assembling hole arranged on thermal conductive silicon offset plate and radiator element is compressed by the compression spring screw of the upper dress of insulation covering and its with one heart and the positive and negative electrode lug of battery core is fixed.
2. the heat radiation structure of a kind of lithium ion battery pack according to claim 1, it is characterized in that: the position at described fixing supporting plate four angles is provided with fixed jaw, the plate face of fixing supporting plate is provided with screw, between described screw spaced apart, fixing supporting plate connects mortise by the fixed jaw on it and PCB retaining plate by tin welding to form hard flat support face.
3. the heat radiation structure of a kind of lithium ion battery pack according to claim 1, it is characterised in that: the shape of radiator element is such as comb shape, and there is disconnection the discontinuous centre of comb, and disconnection place is that insulation covering is installed in convenient insertion, and described radiator element adopts aluminium to make.
4. the heat radiation structure of a kind of lithium ion battery pack according to claim 1, it is characterised in that: being provided with screw hole on thermal conductive silicon offset plate, thermal conductive silicon offset plate is that soft state silica gel makes.
5. the heat radiation structure of a kind of lithium ion battery pack according to claim 1 or 4, it is characterized in that: the material that insulation covering makes selects nylon to make, the top of insulation covering is provided with a limited step, described insulation covering is assemblied in radiator element comb disconnection place, and the limited step on insulation covering is stuck in the root of comb just.
CN201610193959.0A 2016-03-31 2016-03-31 Heat dissipation structure of flexible package lithium ion battery pack Pending CN105680118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610193959.0A CN105680118A (en) 2016-03-31 2016-03-31 Heat dissipation structure of flexible package lithium ion battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610193959.0A CN105680118A (en) 2016-03-31 2016-03-31 Heat dissipation structure of flexible package lithium ion battery pack

Publications (1)

Publication Number Publication Date
CN105680118A true CN105680118A (en) 2016-06-15

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106785224A (en) * 2017-03-10 2017-05-31 江苏索尔新能源科技股份有限公司 A kind of radiating subassembly of on-vehicle battery
CN107517560A (en) * 2016-06-16 2017-12-26 上海安浦鸣志自动化设备有限公司 A kind of fixing device of power tube
CN108039531A (en) * 2017-10-27 2018-05-15 河南新太行电源股份有限公司 A kind of battery structure
CN108730926A (en) * 2018-06-04 2018-11-02 福建宏佳光电科技有限公司 It is a kind of to use basaltic round cooling stand
CN110556607A (en) * 2019-09-27 2019-12-10 东莞汇洋动力科技有限公司 battery module and battery pack
CN110931674A (en) * 2019-10-09 2020-03-27 国网浙江省电力有限公司湖州供电公司 Low-voltage energy storage device and control method thereof

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CN200986939Y (en) * 2006-10-09 2007-12-05 东莞新能源电子科技有限公司 Combination device for power battery
US20080124617A1 (en) * 2006-04-18 2008-05-29 Danaher Corporation Battery busing scheme
CN101499545A (en) * 2008-01-31 2009-08-05 株式会社电装 Battery temperature regulator with suitable arrangement of temperature sensor
CN103872403A (en) * 2014-03-07 2014-06-18 中航锂电(洛阳)有限公司 Anti-overheating cell module
CN102823023B (en) * 2010-03-26 2015-08-05 戴姆勒股份公司 There is the battery of multiple battery cell
CN103262293B (en) * 2010-12-09 2015-12-16 日立汽车系统株式会社 Secondary cell
CN205004396U (en) * 2015-09-07 2016-01-27 福建博瑞特电机有限公司 Improved power lithium -ion battery
CN205646070U (en) * 2016-03-31 2016-10-12 河南环宇赛尔新能源科技有限公司 Heat radiation structure of soft package lithium -ion battery group

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080124617A1 (en) * 2006-04-18 2008-05-29 Danaher Corporation Battery busing scheme
CN200986939Y (en) * 2006-10-09 2007-12-05 东莞新能源电子科技有限公司 Combination device for power battery
CN101499545A (en) * 2008-01-31 2009-08-05 株式会社电装 Battery temperature regulator with suitable arrangement of temperature sensor
CN102823023B (en) * 2010-03-26 2015-08-05 戴姆勒股份公司 There is the battery of multiple battery cell
CN103262293B (en) * 2010-12-09 2015-12-16 日立汽车系统株式会社 Secondary cell
CN103872403A (en) * 2014-03-07 2014-06-18 中航锂电(洛阳)有限公司 Anti-overheating cell module
CN205004396U (en) * 2015-09-07 2016-01-27 福建博瑞特电机有限公司 Improved power lithium -ion battery
CN205646070U (en) * 2016-03-31 2016-10-12 河南环宇赛尔新能源科技有限公司 Heat radiation structure of soft package lithium -ion battery group

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107517560A (en) * 2016-06-16 2017-12-26 上海安浦鸣志自动化设备有限公司 A kind of fixing device of power tube
CN106785224A (en) * 2017-03-10 2017-05-31 江苏索尔新能源科技股份有限公司 A kind of radiating subassembly of on-vehicle battery
CN106785224B (en) * 2017-03-10 2023-09-19 苏州索尔智行新能源科技有限公司 Radiating assembly of vehicle-mounted battery
CN108039531A (en) * 2017-10-27 2018-05-15 河南新太行电源股份有限公司 A kind of battery structure
CN108730926A (en) * 2018-06-04 2018-11-02 福建宏佳光电科技有限公司 It is a kind of to use basaltic round cooling stand
CN110556607A (en) * 2019-09-27 2019-12-10 东莞汇洋动力科技有限公司 battery module and battery pack
CN110931674A (en) * 2019-10-09 2020-03-27 国网浙江省电力有限公司湖州供电公司 Low-voltage energy storage device and control method thereof

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