CN203503756U - Thermal management system of power battery based on flat plate loop heat pipes - Google Patents
Thermal management system of power battery based on flat plate loop heat pipes Download PDFInfo
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- CN203503756U CN203503756U CN201320431056.3U CN201320431056U CN203503756U CN 203503756 U CN203503756 U CN 203503756U CN 201320431056 U CN201320431056 U CN 201320431056U CN 203503756 U CN203503756 U CN 203503756U
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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
Abstract
The utility model discloses a thermal management system of a power battery based on flat plate loop heat pipes. The system is characterized by comprising an upper box body of a module, a lower box body of the module and a middle partitioning plate, wherein the middle partitioning plate is arranged between the upper box and the lower box body of the module, at least two battery pack monomer shells are arranged in the lower box body of the module, more than two battery module packs formed by connecting battery monomers in series or in parallel are arranged in each battery pack monomer shell, and a flat plate loop heat pipe is arranged on the surface of each battery monomer. Each flat plate loop heat pipe is divided into an evaporation section, a liquid storage chamber, an air line, a liquid line and a condensation section, wherein the evaporation section is arranged on the surface of one battery monomer, the condensation section is located in the upper box body of the module, and the liquid storage chamber is arranged above one battery monomer in the lower box of the module. The system disclosed by utility model has the characteristics of great heat dissipating capacity, high heat dissipating efficiency and simplicity in processing, and can effectively realize high temperature heat dissipation, low temperature heating and heat preservation and heat recycle of the power battery.
Description
Technical field
The present invention relates to a kind of power battery thermal management system, relate in particular to the power battery thermal management system based on dull and stereotyped loop circuit heat pipe.
Background technology
Countries in the world are to the pay attention to day by day of the problems such as energy crisis and environmental pollution and the correspondingly continuous intensification to energy-saving and emission-reduction and environmental protection understanding, and the electrical equipments such as the electric automobile that dependence electrokinetic cell drives and hybrid vehicle must become the trend of clean energy resource development.Compare other electrical equipment, electric automobile non-pollutant discharge, has more more economically than fuel vehicle, is subject to the attention of many research institutions, electric automobile production firm and battery manufacturers.The power of electric automobile is provided by electrokinetic cell, and it is converted to electric energy by inner complicated chemical reaction by chemical energy, produces a large amount of heat energy simultaneously, more for the heat producing in large scale and heavy-current discharge process.If heat can not fall apart in time, to outside batteries, will inevitably make battery temperature increase, reduce battery performance.Cell body temperature rises to critical value and can cause leakage, smolder and the phenomenon such as venting, and more serious meeting causes the violent combustion explosion of battery, and serious threat is to vehicle performance and personal safety.So the development of electric automobile and application must solve the heat management problems of electrokinetic cell.
Yet it is cooling that battery thermal management generally adopts air in the market, this type of cooling is easy but heat-sinking capability and speed are all limited, adopts other types of cooling but seldom.The patent No. is that the Chinese utility model patent of ZL200920055746.7 discloses the power battery device with phase-change material cooling system, and its phase-change material is only by Battery case plate and extraneous heat exchange.The Chinese utility model patent of patent No. ZL200920060473.5 discloses the battery device for electric vehicle that has high efficiency and heat radiation, but its processing and fabricating is cumbersome.Publication number CN201646430U discloses a kind of Vehicular battery radiating module, heat production mechanism when module radiating device runner design does not consider that electrokinetic cell discharges and recharges, and radiating effect is preferential, and reckons without the recycling of heat.Publication number CN201421869 discloses a kind of battery heat dissipation device that comprises radiator, thermoelectric element and heat pipe, because heat pipe used in this device inserted mode contacts and causes thermal resistance larger with host rack, and heat-sinking capability is preferential, do not consider that equally battery heat production characteristic and heat recycle.Publication number CN102157761A discloses a kind of power battery management system that utilizes pulsating heat pipe that comprises, this system radiating ability is preferential, and considered that battery heat production characteristic and heat recycle, but the heat-sinking capability of pulsating heat pipe and radiating rate are all not so good as flat-plate heat pipe.
Summary of the invention
By Given this, the object of this invention is to provide a kind of power battery thermal management system based on dull and stereotyped loop circuit heat pipe, compared with prior art there is heat dissipation capacity large, radiating efficiency is high, processing is simple, can solve efficiently the technical problem that the heat radiation of electrokinetic cell high temperature, low-temperature heat insulation and heat recycle.
To achieve these goals, the present invention is by the following technical solutions:
A kind of power battery thermal management system based on dull and stereotyped loop circuit heat pipe, it is characterized in that: comprise module upper box, module lower box and central dividing plate, central dividing plate is located between module upper box and module lower box, in module lower box, be provided with at least two batteries monomer housings, more than being placed with at least two in each batteries monomer housing, by battery cell, contacted or the group of battery modules forming in parallel, the surface of described every battery cell is provided with flat dull and stereotyped loop circuit heat pipe, described dull and stereotyped loop circuit heat pipe is divided into evaporation section, fluid reservoir, gas line, liquidus and condensation segment, described evaporation section is located at battery cell surface, described condensation segment is positioned at module upper box, described fluid reservoir is located at battery cell top in module lower box.
As preferably, the fluid reservoir section of described dull and stereotyped loop circuit heat pipe is provided with implementation of port.
As preferably, in described dull and stereotyped loop circuit heat pipe vaporization chamber, capillary wicking surface has longitudinal steam conduit on the both direction contacting with battery face.
As preferably, the core of the capillary wick in described dull and stereotyped loop circuit heat pipe evaporation section is metal powder sintered plate, woven wire, metal foam or metallic fiber sintered felt.
As preferably, the inner bottom part of described module lower box is provided with the projection of self-contained battery monomer.
As preferably, described evaporation section is bonding by heat-conductive bonding agent and battery cell surface.
As preferably, described module upper box plate is porous flat plate or solid seal plate.
As preferably, in described module upper box and module lower box, be filled with liquid or solid phase-change material, the liquid or solid phase-change material in lower box can not flood battery cell top.
As preferably, all plates of described module upper box and module lower box are the solid flat board of sealing; Described module upper box offers fluid intake and fluid issuing.While being filled with liquid or solid phase-change material in module upper box, the central dividing plate of modular tank and this province of modular tank are the solid flat board of sealing, and described module upper box offers fluid intake and fluid issuing.
As preferably, between described battery cell and dull and stereotyped loop circuit heat pipe, be provided with scale copper.Described dull and stereotyped loop circuit heat pipe is made by high heat-conducting copper material or light high heat conducting aluminium.
Beneficial effect of the present invention is:
The present invention is by the ingenious combination of dull and stereotyped loop circuit heat pipe and battery, battery heat is delivered in the environment outside battery body and is gone by dull and stereotyped loop circuit heat pipe etc., its middle plateform loop circuit heat pipe is according to the heat production appropriate design of battery, there is heat dissipation capacity large, radiating efficiency advantages of higher, can solve efficiently electrokinetic cell high temperature heat radiation, low-temperature heat insulation and heat and the variety of issue such as recycle.
It is that solid or liquid etc. are selected the processing and fabricatings such as solid flat board or porous flat plate that modular tank of the present invention can be filled according to inside, and meanwhile, the convex shoulder of modular tank bottom etc. can form with modular tank monoblock cast, and the fastening battery of anxious energy is simple in structure again.Group of battery modules integral heat sink function can match with car load design.
Group of battery modules of the present invention, can under hot environment, dispel the heat, possess heating battery and maintenance steady temperature in low temperature environment simultaneously, make each battery cell reach optimum working temperature, and the heat producing in battery being discharged again by appropriate design in low temperature environment is in vehicle cabin, is compartment heating.
The present invention has efficiently, energy-saving and environmental protection, simple in structure, cost is low, easy for installation, stable and reliable, the advantages such as functional diversities.Without external force or under without additional battery power consumption, various charge status, electrokinetic cell is carried out to High Efficiency Thermal management, comprise heat radiation, heating, working temperature control, recycling residual heat etc., be applicable to the electrical equipment that various dependence electrokinetic cells drive, there are wide market prospects.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating below, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be by below specification or accompanying drawing in specifically noted structure realize and obtain.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The plan structure schematic diagram of Fig. 2 Fig. 1 lower box;
Fig. 3 is the plan structure schematic diagram of the present invention while adopting porous flat plate top cover of box;
Fig. 4 is the structural representation of batteries monomer housing of the present invention and group of battery modules;
Fig. 5 is the dull and stereotyped loop heat pipe structure schematic diagram of battery cell of the present invention surface placement;
Fig. 6 is the dull and stereotyped loop circuit heat pipe evaporation structure of the present invention schematic diagram;
Fig. 7 is the A-A schematic cross-section of Fig. 6;
Fig. 8 is the another kind of structural representation of the dull and stereotyped loop circuit heat pipe of battery cell of the present invention surface placement;
Fig. 9 is the another kind of structural representation of the dull and stereotyped loop circuit heat pipe of battery cell of the present invention surface placement;
Figure 10 is module upper box structure schematic top plan view of the present invention;
Figure 11 is that the present invention is for the dull and stereotyped loop heat pipe structure schematic diagram of large scale battery monomer surface placement.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, native system is without extra power in the situation that, transfer of heat battery cell being produced by dull and stereotyped loop circuit heat pipe 3, in cell module outer portion environment, is carried out efficient heat management to battery.Native system comprises module lower box 4, module upper box 6, modular tank central dividing plate 2, in module lower box 4, be placed with at least two batteries monomer housings 8, more than being placed with at least two in each batteries monomer housing 8, by battery cell 1, contacted or the group of battery modules forming in parallel, the surface distributed of every battery cell 1 has plate dull and stereotyped loop circuit heat pipe 3.As shown in Figure 5, dull and stereotyped loop circuit heat pipe 3 is divided into evaporation section 10, condensation segment 9, gas line 13, liquidus 12 and fluid reservoir 11, evaporation section 10 is located at battery list 1 surface, with battery cell 1 surface laminating, condensation segment 9 is positioned at module upper box 6, fluid reservoir 11 is positioned at battery cell 1 top, and in described evaporation section, the core of capillary wick can be metal porous core, woven wire or filament.
As shown in Figure 1, the inner bottom part of module lower box 4 is provided with projection 5, plays the effect of fastening group of battery modules.This projection 5 can be that a monoblock cast forms with modular tank 4, is also separable into different bulks, according to size specific design and the installation of module lower box 4 integral body.Battery cell 1 can adopt all types such as lead-acid battery, Ni-MH battery, lithium ion battery in charge and discharge process, to have battery and the electrokinetic cell of heat generation; 8 fixing and clamping actions of batteries monomer housing.
As shown in Fig. 5, Fig. 6, Fig. 7, on the fluid reservoir 11 of described dull and stereotyped loop circuit heat pipe 3, have implementation of port 17.Capillary wick in dull and stereotyped loop circuit heat pipe 3 evaporation sections 10 has longitudinal channels 16 in two thermal interface directions, facilitates the output of steam.As shown in Figure 6, Figure 7, the profile of evaporation section can be designed as flat board-square structure 15 or flat board-oval structure 14.
As shown in Figure 2 and Figure 4, described evaporation section 10 directly contacts battery cell 1 surface, and by filling in contact site, to have the heat-conductive bonding agent 7 of high thermal conductivity coefficient bonding with battery cell 1 surface.Heat-conductive bonding agent 7 plays fixed flat planar loop circuit heat pipe 3 and increases battery cell 1 and dull and stereotyped loop circuit heat pipe 3 contacts area.The heat-conductive bonding agent 7 with high thermal conductivity coefficient comprises customary insulation and nonisulated heat-conductive bonding agent and at these heat-conductive bonding agents, adds the various rank particles of metal nano level micron order or the powder such as copper nanoparticle; or add carbon nano-tube, graphite etc. nonmetal to be the various rank particles of high heat conducting nano level micron order or powder, to be prepared into the heat-conductive bonding agent with high thermal conductivity coefficient.
As shown in Figure 1, can in module upper box 6, be filled with liquid or solid phase-change material, comprise: water and wherein disastrously assorted microcapsules, the liquid of nano capsule phase change material, paste materials, and paraffin, the phase-change materials such as various solid-liquids based on paraffin; By each class I liquid I in the 6 interior fillings of module upper box or all kinds of phase-change material, absorb heat, under the various charge status of battery cell 1, maintain its suitable temperature range.In module lower box 4, be filled with liquid or solid phase-change material, by its heat absorption and heat transfer, make the temperature on battery cell 1 surface even, heating and insulation that simultaneously can be at low temperatures.
Condensation segment 9 designs are in module upper box.Rely on horizontal heat pipe condenser section 9, the enhance heat of plunderring of car gas when advancing.As shown in Figure 3, the plate of module upper box 6 is porous flat plate.But can adopt solid seal plate according to technological requirement.As shown in figure 10, while being filled with fluent material in module upper box 6, module upper box 6 itself is the solid flat board of sealing, can by fluid, flow by fluid intake 20 and fluid issuing 19 are set at module upper box 6, and augmentation of heat transfer.The heat that evaporation section 10 directly contacts with each class I liquid I or the contact of all kinds of phase-change material produces battery of dull and stereotyped loop circuit heat pipe 3 recycles, and comprises for the HVAC in electric automobile or hybrid electric vehicle compartment, cogeneration etc.Select solid flat board or porous flat plate to choose with design and to determine according to native system specific requirement.While adopting solid flat board, for battery recycling residual heat; While adopting porous flat plate, in conjunction with group of battery modules installation site in electrical equipment, for relying on various fluids to accelerate the heat management system of heat radiation; If modular tank and modular tank central dividing plate form by solid flat sheet combination, be applicable to the environment that various heat dissipation environments are especially had relatively high expectations to heat radiation.
As shown in figure 10, module upper box 6 arranges fluid intake 20 and fluid issuing 19, and by fluid intake 20 and fluid issuing 19, the heat that condensation segment is discharged is derived, and dull and stereotyped loop circuit heat pipe condensation segment can be arranged on the position away from each electrokinetic cell.Dull and stereotyped loop circuit heat pipe 3 is made by high heat-conducting copper material or light high heat conducting aluminium.The condensation segment 9 of dull and stereotyped loop circuit heat pipe 3 can be designed to multiple geometry to adapt to different heat radiation requirements, and manifold structure as shown in Figure 8, Figure 9, has augmentation of heat transfer effect, embeds further augmentation of heat transfer of fin 18 on condensation segment 9 manifold surfaces.
During battery charging and discharging, the evaporation section 10 of dull and stereotyped loop circuit heat pipe 3 absorbs the heat that battery produces, by condensation segment 9, heat is emitted, when casing central dividing plate 2 and module upper box 6 and module lower box 4 are porous flat plate and form, utilize that the air of electric automobile in advancing is horizontal plunders condensation segment 10 accelerated heat transmission.In hot environment, its heat can be used for cogeneration midget plant; In low temperature environment, it is carriage of electric automobile heating that its heat can be used as auxiliary heating measure.
As shown in figure 11, the loop circuit heat pipe 3 that distributes side by side on battery cell 1 surface for large-sized battery cell 1, the scale copper 21 that pastes a high heat conduction between them improves the Temperature Distribution on battery cell 1 surface.Between battery cell 1 and copper sheet 21 and copper sheet 21 and loop circuit heat pipe, the heat-conductive bonding agent 7 with high thermal conductivity coefficient is filled in contact site.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe, it is characterized in that: comprise module upper box, module lower box and central dividing plate, central dividing plate is located between module upper box and module lower box, in module lower box, be provided with at least two batteries monomer housings, more than being placed with at least two in each batteries monomer housing, by battery cell, contacted or the group of battery modules forming in parallel, the surface of described every battery cell is provided with flat dull and stereotyped loop circuit heat pipe, described dull and stereotyped loop circuit heat pipe is divided into evaporation section, fluid reservoir, gas line, liquidus and condensation segment, described evaporation section is located at battery cell surface, described condensation segment is positioned at module upper box, described fluid reservoir is located at battery cell top in module lower box.
2. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 1, is characterized in that: the fluid reservoir section of described dull and stereotyped loop circuit heat pipe is provided with implementation of port.
3. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 1, is characterized in that: in described dull and stereotyped loop circuit heat pipe evaporation section, capillary wicking surface has longitudinal steam conduit on the both direction contacting with battery face.
4. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 1, is characterized in that: the inner bottom part of described module lower box is provided with the projection of self-contained battery monomer.
5. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 1, is characterized in that: described evaporation section is bonding by heat-conductive bonding agent and battery cell surface.
6. according to the power battery thermal management system based on dull and stereotyped loop circuit heat pipe described in any one in claim 1 to 5, it is characterized in that: described module upper box plate is porous flat plate or solid seal plate.
7. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 6, it is characterized in that: in described module upper box and module lower box, be filled with liquid or solid phase-change material layers, the liquid or solid phase-change material layers in lower box can not exceed battery cell top.
8. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 7, is characterized in that: all plates of described module upper box and module lower box are the solid flat board of sealing; Described module upper box offers fluid intake and fluid issuing.
9. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 1, is characterized in that: between described battery cell and dull and stereotyped loop circuit heat pipe, be provided with scale copper.
10. the power battery thermal management system based on dull and stereotyped loop circuit heat pipe according to claim 1, is characterized in that: described condensation segment is provided with fin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320431056.3U CN203503756U (en) | 2013-07-18 | 2013-07-18 | Thermal management system of power battery based on flat plate loop heat pipes |
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| CN201320431056.3U CN203503756U (en) | 2013-07-18 | 2013-07-18 | Thermal management system of power battery based on flat plate loop heat pipes |
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| CN203503756U true CN203503756U (en) | 2014-03-26 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367837A (en) * | 2013-07-18 | 2013-10-23 | 三门峡速达交通节能科技股份有限公司 | Power battery thermal management system based on flat loop heat pipes |
| CN104697179A (en) * | 2015-03-24 | 2015-06-10 | 吴新祥 | Instant electric water heater and electric energy supplementing structure thereof |
| CN106450575A (en) * | 2016-11-26 | 2017-02-22 | 华中科技大学 | Thermal management system combining heat pipe cooling and thermal protection |
| CN106654313A (en) * | 2016-12-29 | 2017-05-10 | 南京晨光集团有限责任公司 | Parallel heating device applied to heating of automatically activated silver zinc reserve battery pack |
| CN107634164A (en) * | 2017-09-29 | 2018-01-26 | 湘潭大学 | A kind of battery thermal management system combined based on microchannel thermotube and phase-change material |
| CN109193068A (en) * | 2018-08-22 | 2019-01-11 | 长沙馨麓能源科技有限公司 | Energy storage equipment heat management system with combined loop circuit heat pipe |
| CN109830776A (en) * | 2019-01-22 | 2019-05-31 | 重庆交通大学 | Thermal management device of battery |
| CN109830624A (en) * | 2019-01-22 | 2019-05-31 | 重庆交通大学 | Battery internal circulation hot pipe manages system |
-
2013
- 2013-07-18 CN CN201320431056.3U patent/CN203503756U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367837A (en) * | 2013-07-18 | 2013-10-23 | 三门峡速达交通节能科技股份有限公司 | Power battery thermal management system based on flat loop heat pipes |
| CN104697179A (en) * | 2015-03-24 | 2015-06-10 | 吴新祥 | Instant electric water heater and electric energy supplementing structure thereof |
| CN106450575A (en) * | 2016-11-26 | 2017-02-22 | 华中科技大学 | Thermal management system combining heat pipe cooling and thermal protection |
| CN106450575B (en) * | 2016-11-26 | 2019-03-05 | 华中科技大学 | A kind of cooling heat management system with thermal protection of combination heat pipe |
| CN106654313A (en) * | 2016-12-29 | 2017-05-10 | 南京晨光集团有限责任公司 | Parallel heating device applied to heating of automatically activated silver zinc reserve battery pack |
| CN106654313B (en) * | 2016-12-29 | 2019-06-07 | 南京晨光集团有限责任公司 | A kind of parallel heating apparatus applied to automatic activation zinc-silver reserve battery group heating |
| CN107634164A (en) * | 2017-09-29 | 2018-01-26 | 湘潭大学 | A kind of battery thermal management system combined based on microchannel thermotube and phase-change material |
| CN109193068A (en) * | 2018-08-22 | 2019-01-11 | 长沙馨麓能源科技有限公司 | Energy storage equipment heat management system with combined loop circuit heat pipe |
| CN109830776A (en) * | 2019-01-22 | 2019-05-31 | 重庆交通大学 | Thermal management device of battery |
| CN109830624A (en) * | 2019-01-22 | 2019-05-31 | 重庆交通大学 | Battery internal circulation hot pipe manages system |
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Granted publication date: 20140326 |