CN109149012A - Temperature control system, Thermal Management System for EV Battery Packs and method based on magnetic Refrigeration Technique - Google Patents

Temperature control system, Thermal Management System for EV Battery Packs and method based on magnetic Refrigeration Technique Download PDF

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Publication number
CN109149012A
CN109149012A CN201811150022.0A CN201811150022A CN109149012A CN 109149012 A CN109149012 A CN 109149012A CN 201811150022 A CN201811150022 A CN 201811150022A CN 109149012 A CN109149012 A CN 109149012A
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CN
China
Prior art keywords
temperature
heat dissipation
microchannel
magnetic
dissipation tank
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Pending
Application number
CN201811150022.0A
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Chinese (zh)
Inventor
王亚楠
李华
厉青峰
练晨
何鑫
彭伟利
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Shandong University
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Shandong University
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Priority to CN201811150022.0A priority Critical patent/CN109149012A/en
Publication of CN109149012A publication Critical patent/CN109149012A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01M10/615Heating or keeping warm
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01M10/617Types of temperature control for achieving uniformity or desired distribution of temperature
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01M10/63Control systems
    • H01M10/635Control systems based on ambient temperature
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561Gases
    • H01M10/6563Gases with forced flow, e.g. by blowers
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • 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
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

Present disclose provides a kind of temperature control system based on magnetic Refrigeration Technique, Thermal Management System for EV Battery Packs and methods, the side of heat dissipation tank and storage case passes through hot-fluid piping connection, the other side passes through cold flow piping connection, forming circuit, heat dissipation tank includes heat radiation box, outer is successively arranged with multiple cooling fins, and inner surface is provided with electromagnet and heating pipeline;Storage case includes external heat insulating box and internal microchannel spacer plate box, microchannel spacer plate box includes multiple accommodating chambers being separated by with microchannel partition, before cabinet, rear surface is internally provided with horizontal and vertical several connecting lines, microchannel diaphragm internal is provided with multiple connecting branches, connecting branch is connected to connecting line, magnetic fluid coolant liquid is caused to generate temperature drop when flowing out heat dissipation tank using the magnetothermal effect of magnetic refrigerating material, it can be effectively reduced the temperature for entering the magnetic fluid coolant liquid in storage case from cold flow pipeline, keep the consistency for being applied the internal temperature of object.

Description

Temperature control system, batteries of electric automobile group heat management system based on magnetic Refrigeration Technique System and method
Technical field
This disclosure relates to a kind of temperature control system based on magnetic Refrigeration Technique, Thermal Management System for EV Battery Packs and Method.
Background technique
Under the promotion of energy crisis and problem of environmental pollution, obtained using power battery as the new energy technology of representative fast Speed development and extensive use.As the power resources of many equipment (by taking electric car as an example), the property of battery pack and equipment entirety It can be closely related.
But it is above-mentioned using battery pack as the equipment of power resources in practical applications, usually by battery cell with series-parallel shape Formula forms battery pack, for providing suitable voltage and enough electricity.In equipment operation or charging process, inside battery Chemical reaction and the internal resistance of battery effect itself cause battery cell to generate heat and battery pack temperature are caused to increase, battery cell itself The different calorific value differences with the battery cell in different location of the calorific value of different parts eventually lead to internal battery pack temperature That spends is inconsistent.Under the temperature rise of battery pack and the inconsistent service life and capacity that will cause battery pack of internal battery pack temperature Drop, or even cause thermal runaway, lead to safety accident.Meanwhile environment temperature it is lower or cold start-up when, inside battery chemical substance Reaction speed slows down, battery pack charge and discharge capacity sharp fall, if being in cold operation or frequent low-temperature starting for a long time Under dynamic state, the service life of battery pack can be also damaged.
The radiating mode of current battery group mainly has air-cooled, liquid cooling, phase-change material are cooling and heat pipe is cooling etc..Have and much exists This respect makes the document of research, and still, these coolings or thermal management technology all have some disadvantages at present.
Such as Chinese invention patent CN102832425A, it is entitled " a kind of heat management system of batteries of electric automobile packet and its Thermal management algorithm ", which is disclosed, places cold plate between two layers of battery to absorb the heat of battery generation, be equipped in cold plate one it is cold But out of battery pack is taken heat in liquid stream road, and the high temperature coolant for flowing out battery pack is radiated by radiator and fan;But it radiates The heat radiation power of device and fan is limited, when environment temperature is higher high temperature coolant flow through radiator cooling effect it is undesirable, together When cold plate in cooling liquid flowing channel it is too long, temperature rise is excessively high in coolant flow, and pipe end cooling condition is poor, causes in battery pack The temperature consistency in portion is not high.
Chinese utility model patent CN206546865U, it is entitled " a kind of cooling based on phase-change material and Air Coupling Battery thermal management system " discloses the arrangement composite phase-change plate between battery cell and fin heat sink, and composite phase-change plate absorbs The heat of battery cell generation is simultaneously transmitted on heat sink fin, flows through fin by air to take away heat;But fin dissipates Battery pack volume is significantly increased in hot plate, reduces the rate in groups of battery pack, air cooled heat exchange effect when environment temperature is higher Rate is low, and the poor temperature consistency for leading to internal battery pack of radiating condition of end fin is poor, in addition the heat management system Do not have low-temperature heat ability.
To sum up, it is necessary to good temperature control be carried out to power battery pack, to improve the high temperature heat dissipation of battery pack and low Warm heating efficiency, and keep the consistency of internal battery pack temperature.
Summary of the invention
The disclosure to solve the above-mentioned problems, proposes a kind of temperature control system based on magnetic Refrigeration Technique, electronic vapour Vehicle battery pack thermal management system and method, the disclosure are based on magnetic Refrigeration Technique, lead to magnetic using the magnetothermal effect of magnetic refrigerating material Fluid coolant liquid generates temperature drop when flowing out heat dissipation tank, and it is cooling to can be effectively reduced the magnetic fluid entered in storage case from cold flow pipeline The temperature of liquid improves the heat dissipation effect for being applied object, keeps the consistency for being applied the internal temperature of object.
To achieve the goals above, the disclosure adopts the following technical scheme that
A kind of temperature control system, including heat dissipation tank, storage case, hot-fluid pipeline, cold flow pipeline and actuator, wherein institute The side of heat dissipation tank and storage case is stated by hot-fluid piping connection, the other side is formed into a loop, described time by cold flow piping connection Road is provided with actuator, to drive circulating for internal flow, is provided with temperature on the hot-fluid pipeline and cold flow pipeline Spend sensor;
The heat dissipation tank includes heat radiation box, and the heat radiation box outer is successively arranged with multiple cooling fins, the heat dissipation Multiple one-to-one electromagnets, setting in the heat radiation box are provided on the opposite inner wall of the inner surface at least two of cabinet There is heating pipeline;
The storage case includes external heat insulating box and internal microchannel spacer plate box, and the microchannel spacer plate box includes Multiple accommodating chambers being separated by with microchannel partition, microchannel partition box body front and back walls face are internally provided with lateral and vertical To several connecting lines, the microchannel diaphragm internal is provided with multiple connecting branches, the connecting branch and the company Connect pipeline connection;
By the working condition of control permanent magnet or heating pipeline, it is warm to realize that the fluid flowed out in heat dissipation tank reaches setting Degree, and recycled in circuit under the action of actuator, it carries out being applied object cooling or heating to what is accommodated in accommodating chamber.
It is limited as further, the heat insulating box is cuboid opening shell made of heat-barrier material, cabinet or so There are feed liquor through-hole and fluid through-hole out in two sides respectively, and on the position of feed liquor through-hole and microchannel spacer plate box the position of feed liquor manifold entrance Match, the position that the position of fluid through-hole is exported with liquid outlet on the spacer plate box of microchannel out matches.
Matched by the position of above structure, guarantee the effective flowing of fluid in the spacer plate box of microchannel, cooperates microchannel The connecting line and connecting branch of spacer plate box guarantee that fluid can be three-dimensional flows uniformly through each accommodating chamber, form uniform temperature control Environment.
It is limited as further, is removably connected with case lid made of heat-barrier material on the heat insulating box.
It is limited as further, the fluid channel of the microchannel spacer plate box includes feed liquor house steward, feed liquor branch pipe, connection Branch pipe goes out liquid branch pipe and liquid outlet;Feed liquor house steward is located at wall surface lower part, feed liquor branch pipe on front side of the spacer plate box of microchannel and is distributed vertically In the microchannel partition front of microchannel spacer plate box, after liquid branch pipe is distributed in the microchannel partition of microchannel spacer plate box vertically out Portion, liquid outlet are located at wall surface top on rear side of the spacer plate box of microchannel;Feed liquor house steward is connect with each feed liquor branch pipe, liquid outlet with Each liquid branch pipe connection out, is connected between each pair of feed liquor branch pipe and liquid branch pipe out by one group of connecting branch.Above structure can It is further to guarantee that fluid be three-dimensional flows uniformly through each accommodating chamber, uniform temperature controlled environment is formed, guarantees controlled device Temperature consistency.
It is limited as further, the spacing of the microchannel partition is identical.
It is limited as further, the heat radiation box includes heat radiation box shell and cooling fin, heat radiation box shell Left and right wall surface has inlet opening, fluid hole respectively, and one group of cooling fin arranged in a uniform and heat radiation box shell cast are integral, institute It states cooling fin to be arranged in parallel, and is spaced identical.
It is limited as further, is provided with adjustable speed fan on the outside of the heat dissipation tank.It can speed up by the way that blower is arranged Heat dissipation.
It is limited as further, the heat dissipation tank is magnetic shielding material, is removably connected with heat dissipation case lid thereon, described Heat dissipation case lid includes heat dissipation tank lid housing and cooling fin, and the cooling fin is integrated with the casting of heat dissipation tank lid housing.
It is limited as further, heat dissipation tank lid housing bottom is provided with seam allowance, and seam allowance and heat dissipation tank body shell It is nested together inside and outside seam allowance at the top of body, forms sealing, heat dissipation tank with magnetic screen function.
Battery pack thermal management system, including above-mentioned temperature control system, the interior each battery cell of setting of each accommodating chamber.
A kind of Thermal Management System for EV Battery Packs, including above-mentioned battery pack thermal management system, electromagnet is by control electricity Road control, and the control circuit is connected with the electronic control unit of electric car, the electronic control unit, which is also connected with, to be added The temperature sensor and actuator of pipe line control circuit, hot-fluid pipeline and cold flow pipeline.
Based on the working method of above-mentioned Thermal Management System for EV Battery Packs, when the temperature for detecting magnetic fluid coolant liquid Lower than setting value, control heating pipeline work, control permanent magnet does not work, realizes the heating to magnetic fluid coolant liquid, guarantee electricity The normal working temperature environment of pond group;
When the temperature for detecting magnetic fluid coolant liquid is higher than predetermined value, control permanent magnetism body running, pipeline not work is heated in control Make, forms equally distributed magnetic field in heat dissipation tank, the magnetic refrigerating material nano particle in magnetic fluid coolant liquid in heat dissipation tank Temperature rise is generated after being magnetized, and is increased magnetic fluid coolant temperature, is radiated using cooling fin, the outside of heat dissipation tank does not have magnetic , after magnetic fluid coolant liquid flows out heat dissipation tank, the magnetic refrigerating material nanometer of magnetized state is in magnetic fluid coolant liquid originally Grain occurs demagnetization and generates temperature drop, so that the temperature of magnetic fluid coolant liquid is further decreased to environment temperature hereinafter, guaranteeing battery pack Normal working temperature environment.
Compared with prior art, the disclosure has the beneficial effect that
1, the magnetothermal effect of magnetic refrigerating material causes magnetic fluid coolant liquid to generate temperature drop when flowing out heat dissipation tank, reduces from cold Flow tube road enters the temperature of the magnetic fluid coolant liquid in the spacer plate box of microchannel, improves heat dissipation effect;
2, cooling fin arranged in a uniform increases the heat dissipation area of heat dissipation tank, the speed regulation of heat dissipation tank front installation on heat dissipation tank Blower improves the radiating efficiency of heat dissipation tank, reduces the temperature for entering the magnetic fluid coolant liquid in heat dissipation tank from hot-fluid pipeline, Further improve heat dissipation effect;
3, tend to the flow of magnetic fluid coolant liquid in every glide path by the runner design in the spacer plate box of microchannel Unanimously;It connects feed liquor branch pipe and the length of every connecting branch of liquid branch pipe out is smaller, reduce magnetic fluid coolant flow mistake Temperature rise in journey;The two improves temperature consistency;
4, when being applied on electric car, electronic control unit monitors magnetic fluid coolant liquid temperature by temperature sensor Degree adjusts heat dissipation tank outside air flow velocity by adjustable speed fan, by the current regulation heat dissipation tank internal magnetic field for controlling electromagnet Power, make automobile that can obtain good heat dissipation effect under different operating conditions;
5, when running or start at relatively low ambient temperatures, electronic control unit monitors magnetic fluid by temperature sensor Coolant temperature, improve the magnetic fluid coolant temperature in heat dissipation tank by heating pipeline realizes to heat to battery pack Adjustable low-temperature heat ability.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the shaft side figure of surface structure schematic diagram of the present invention;
Fig. 2 is the explosive view for the overall structure diagram that the present invention is applied to 3 on-vehicle battery monomers;
Fig. 3 be the present invention be applied to the Battery cases of 3 on-vehicle battery monomers, microchannel spacer plate box, cold flow conduit assembly, Hot-fluid conduit assembly, heat radiation box, electromagnet, U-shaped heating tube combination scheme of installation top view;
Fig. 4 be heat radiation box of the present invention, electromagnet, U-shaped heating tube structural schematic diagram explosive view;
Fig. 5 is the top view of the structural schematic diagram after heat radiation box of the present invention, electromagnet, the combination installation of U-shaped heating tube;
Fig. 6 is the A-A cross-sectional view of Fig. 5;
Fig. 7 is the axonometric drawing of the structural schematic diagram of present invention heat dissipation case lid;
Fig. 8 is the axonometric drawing of the structural schematic diagram of microchannel spacer plate box of the present invention;
Fig. 9 is view of the Fig. 8 in the direction A;
Figure 10 is view of the Fig. 8 in the direction B;
Figure 11 is the B-B cross-sectional view of Figure 10;
Figure 12 is the C-C cross-sectional view of Figure 10;
Figure 13 is the schematic diagram of control circuit of the present invention.
Wherein:
1, speed-regulating fan;
2, radiate case lid 2-1, heat dissipation case lid cooling fin 2-2, heat dissipation tank lid housing 2-2-1, heat dissipation tank lid housing seam allowance;
3, hot-fluid pipeline;
4, hot-fluid Tube Temperature Sensor;
5, battery box cover;
6, Battery case 6-1, Battery case feed liquor through-hole 6-2, Battery case go out fluid through-hole;
7, circulating pump;
8, heat radiation box 8-1, heat radiation box fluid hole 8-2, heat radiation box inlet opening 8-3, U-shaped heating tube mounting hole 8-4, Heat radiation box cooling fin 8-4B, heat radiation box cooling fin 8-4C, heat radiation box cooling fin 8-4D, heat radiation box cooling fin 8-4E, Heat radiation box cooling fin 8-4F, heat radiation box cooling fin 8-5, permanent magnet installation position 8-5B, permanent magnet installation position 8-5C, permanent magnet Installation position 8-5D, permanent magnet installation position 8-5E, permanent magnet installation position 8-6, heat radiation box shell 8-6-1, heat radiation box shell stop Mouthful;
9, cold flow pipeline;
10, cold flow Tube Temperature Sensor;
11, electromagnet 11B, electromagnet 11C, electromagnet 11D, electromagnet 11E, electromagnet 11F, electromagnet 11G, electromagnet 11H, electromagnet 11I, electromagnet 11J, electromagnet 11K, electromagnet 11L, electromagnet;
12, battery cell 12B, battery cell 12C, battery cell;
13, microchannel spacer plate box 13-1, feed liquor house steward 13-1-1, feed liquor house steward entrance 13-2, feed liquor branch pipe 13-2-1, company Meet branch pipe 13-2-2, connecting branch 13-2-3, connecting branch 13-2-4, connecting branch 13-2-5, connecting branch 13-2B, feed liquor Branch pipe 13-2B-1, connecting branch 13-2B-2, connecting branch 13-2B-3, connecting branch 13-2B-4, connecting branch 13-2B-5, Connecting branch 13-2C, feed liquor branch pipe 13-2C-1, connecting branch 13-2C-2, connecting branch 13-2C-3, connecting branch 13-2C- 4, connecting branch 13-2C-5, connecting branch 13-2D, feed liquor branch pipe 13-2D-1, connecting branch 13-2D-2, connecting branch 13- 2D-3, connecting branch 13-2D-4, connecting branch 13-2D-5, connecting branch 13-3, go out liquid branch pipe 13-3B, go out liquid branch pipe 13- 3C, go out liquid branch pipe 13-3D, go out liquid branch pipe 13-4, liquid outlet 13-4-1, liquid outlet outlet;
14, U-shaped heating tube;
15, electronic control unit ECU.
Specific embodiment:
The disclosure is described further with embodiment with reference to the accompanying drawing.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In the disclosure, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " side ", The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate describing this public affairs The relative for opening each component or component structure relationship and determination, not refers in particular to either component or element in the disclosure, cannot understand For the limitation to the disclosure.
In the disclosure, term such as " affixed ", " connected ", " connection " be shall be understood in a broad sense, and indicate may be a fixed connection, It is also possible to be integrally connected or is detachably connected;It can be directly connected, it can also be indirectly connected through an intermediary.For The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the disclosure as the case may be, It should not be understood as the limitation to the disclosure.
Clearly to illustrate technical solution, it is applied to carry out illustrating for embodiment on electric car with it. But it will be apparent to those skilled in the art that the disclosure can be applied not only on the battery pack heat management of electric car, may be used also Guarantee that control target is able to carry out the temperature of cold and hot management and each controlled device and to the greatest extent may be used to be applied to other In the consistent equipment of energy or application environment.
With this corresponding, it is only necessary to the controlled device accommodated in accommodating chamber is replaced and is adapted to accordingly, (when So, accommodation space, size of possible accommodating chamber etc. will also do the adjustment of adaptability, these are the known of those skilled in the art Means, details are not described herein) and each control circuit other controller is connected with sensor, certainly, which can To be equipment itself, it is also possible in addition to configure.
Simultaneously, it should be noted that the number of the controlled device of the disclosure is also that can change, in the present embodiment Controlled device is to be illustrated for battery, (certainly, the principle of other controlled devices is also the same) battery cell Quantity be it is variable, such as extend to 5,6, it is even more, also can be reduced its number certainly, certainly, when the number of battery cell Quantitative change more when, the quantity of the accommodating chamber in the spacer plate box of microchannel is to carry out suitability variation with the quantity of battery cell.
As shown in Fig. 1 to Fig. 6, Figure 13, disclosure installation is on the body of a car and the electronic control unit ECU15 with automobile It is connected, including speed-regulating fan (or adjustable speed fan) 1, heat dissipation case lid 2, hot-fluid pipeline 3, hot-fluid Tube Temperature Sensor 4, battery case Lid 5, Battery case 6, circulating pump 7, heat radiation box 8, cold flow pipeline 9, cold flow Tube Temperature Sensor 10, electromagnet 11, battery Monomer 12, battery cell 12B, battery cell 12C, microchannel spacer plate box 13 and U-shaped heating tube 14;
Certainly, U-shaped heating tube could alternatively be other components or shape, such as spiral heating tube in other embodiments Etc..
As shown in Fig. 2, Fig. 8, Battery case 6 is cuboid opening shell made of heat-barrier material, the left and right of Battery case 6 There are fluid through-hole 6-2 out and feed liquor through-hole 6-1 in two sides respectively, and the position of feed liquor through-hole 6-1 and feed liquor on microchannel spacer plate box 13 are total The position of tube inlet 13-1-1 matches, and the position of fluid through-hole 6-2 exports 13-4- with liquid outlet on microchannel spacer plate box 13 out 1 position matches;Battery box cover 5 made of heat-barrier material is mounted on Battery case, and collectively forming with Battery case 6 has The battery case of heat insulating function;
As shown in Fig. 2, Fig. 8 to Figure 12, microchannel spacer plate box 13 is made of heat-conducting insulation material, in 3 rectangular parallelepiped spaces It is respectively put into battery cell 12, battery cell 12B, battery cell 12C;The outer wall dimension and Battery case of microchannel spacer plate box 13 6 inner wall size matches, and microchannel spacer plate box 13 is installed into Battery case 6;Feed liquor house steward 13-1 is located at microchannel partition 13 front side wall surface lower part of case, feed liquor branch pipe 13-2, feed liquor branch pipe 13-2B, feed liquor branch pipe 13-2C, feed liquor branch pipe 13-2D divide vertically Be distributed in the microchannel partition front of microchannel spacer plate box 13, out liquid branch pipe 13-3, go out liquid branch pipe 13-3B, go out liquid branch pipe 13-3C, Liquid branch pipe 13-3D is distributed in the microchannel partition rear portion of microchannel spacer plate box 13 vertically out, and liquid outlet 13-4 is located at microchannel Wall surface top on rear side of spacer plate box;Micro channel systems inside microchannel spacer plate box 13 include four glide paths, first flowing Route is by feed liquor house steward 13-1, feed liquor branch pipe 13-2D, connecting branch 13-2D-1, connecting branch 13-2D-2, connecting branch 13- 2D-3, connecting branch 13-2D-4, connecting branch 13-2D-5, go out liquid branch pipe 13-3D, liquid outlet 13-4 composition;Article 2 stream Route is moved by feed liquor house steward 13-1, feed liquor branch pipe 13-2C, connecting branch 13-2C-1, connecting branch 13-2C-2, connecting branch 13-2C-3, connecting branch 13-2C-4, connecting branch 13-2C-5, go out liquid branch pipe 13-3C, liquid outlet 13-4 composition;Article 3 Glide path is by feed liquor house steward 13-1, feed liquor branch pipe 13-2B, connecting branch 13-2B-1, connecting branch 13-2B-2, connecting branch 13-2B-3, connecting branch 13-2B-4, connecting branch 13-2B-5, go out liquid branch pipe 13-3B, liquid outlet 13-4 composition;Article 4 Glide path is by feed liquor house steward 13-1, feed liquor branch pipe 13-2, connecting branch 13-2-1, connecting branch 13-2-2, connecting branch 13- 2-3, connecting branch 13-2-4, connecting branch 13-2-5, go out liquid branch pipe 13-3, liquid outlet 13-4 composition.
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, the heat radiation box 8 made of magnetic shielding material by heat radiation box shell 8-6 and Heat radiation box cooling fin 8-4, it heat radiation box cooling fin 8-4B, heat radiation box cooling fin 8-4C, heat radiation box cooling fin 8-4D, dissipates Hot tank body cooling fin 8-4E, heat radiation box cooling fin 8-4F composition, the left and right wall surface of heat radiation box shell 8-6 have feed liquor respectively Hole 8-2, fluid hole 8-1, heat radiation box cooling fin 8-4 arranged in a uniform, heat radiation box cooling fin 8-4B, heat radiation box cooling fin 8-4C, heat radiation box cooling fin 8-4D, heat radiation box cooling fin 8-4E, heat radiation box cooling fin 8-4F and heat radiation box shell 8- 6 are cast integrally;Electromagnet 11B, electromagnet 11C, electromagnet 11D, electromagnet 11E, electromagnet 11F, electromagnet 11 and electromagnetism Body 11G, electromagnet 11H, electromagnet 11I, electromagnet 11J, electromagnet 11K, electromagnet 11L are symmetrically mounted at heat dissipation tank body shell On the forward and backward inner wall of body 8-6;Electromagnet control circuit is connected with electronic control unit ECU 15, electronic control unit ECU 15 The connecting and disconnecting of electromagnet control circuit are controlled, and the magnetic inside heat dissipation tank is adjusted by the size of current of adjusting electromagnet Field strength is weak;U-shaped heating tube 14 is mounted on the right side inner wall of heat radiation box shell 8-6, the control circuit and electricity of U-shaped heating tube 14 Sub-control unit ECU15 is connected, and electronic control unit ECU15 controls the connecting and disconnecting of U-shaped heating tube control circuit;By magnetic cup It covers heat dissipation case lid 2 made of material to be made of heat dissipation tank lid housing 2-2 and heat dissipation case lid cooling fin 2-1, radiate case lid cooling fin 2-1 and heat dissipation tank lid housing 2-2 casting is integrated;The seam allowance 2-2-1 and heat radiation box shell 8- of the bottom heat dissipation tank lid housing 2-2 The seam allowance 8-6-1 at 6 tops is nested together, and forms sealing, heat dissipation tank with magnetic screen function, and speed-regulating fan 1 is mounted on Immediately ahead of heat dissipation tank, electronic control unit ECU 15 is connected with speed-regulating fan 1 and adjusts its revolving speed;
As shown in Fig. 2, Fig. 3, Figure 13, hot-fluid conduit assembly is made of hot-fluid pipeline 3 and hot-fluid Tube Temperature Sensor 4, The entrance of hot-fluid pipeline 3 passes through the liquid outlet outlet 13-4-1 for going out fluid through-hole 6-2 and microchannel spacer plate box 13 of Battery case 6 Connection, the outlet of hot-fluid pipeline 3 is connect with the inlet opening 8-2 of heat radiation box shell 8-6;Hot-fluid Tube Temperature Sensor 4 is installed Hot-fluid pipeline 3 entrance and be connected with electronic control unit ECU 15, measure battery case outlet port coolant liquid Temperature;Cold flow conduit assembly is made of cold flow pipeline 9, circulating pump 7, cold flow Tube Temperature Sensor 10, the entrance of cold flow pipeline 9 Connect with the fluid hole 8-1 of heat radiation box shell 8-6, the outlet of cold flow pipeline 9 across Battery case 6 feed liquor through-hole 6-1 with The feed liquor house steward entrance 13-1-1 connection of microchannel spacer plate box 13;Cold flow Tube Temperature Sensor 10 is mounted on cold flow pipeline 9 Entrance is simultaneously connect with electronic control unit ECU 15, measures the coolant temperature of heat dissipation tank outlet port, circulating pump 7 is fixed Amount pump, is mounted on cold flow pipeline 9, and connect with electronic control unit ECU15, electronic control unit ECU15 control loop pump 7 Opening and closing.
Operational process applied to 3 on-vehicle battery monomers:
Working medium used in heat management system of the present invention is magnetic fluid coolant liquid, and the constituent of the coolant liquid includes magnetic Refrigerating material nano particle, base load liquid, interfacial agent, antifreezing agent, NaOH;Base load liquid is by 90% distilled water and 10% wine For essence composition to reduce its freezing point, interfacial agent can prevent magnetic refrigerating material nanoparticle agglomerates to guarantee magnetic fluid coolant liquid Good fluidity, suitable NaOH, which is added, makes the pH value of magnetic fluid coolant liquid be about 10, can effectively prevent magnetic fluid coolant liquid It is rotten, extend its service life.
In automobile starting and operational process, 15 control loop of electronic control unit pumps 7 in running order, heat management systems Middle magnetic fluid coolant liquid circulates process are as follows: and the magnetic fluid coolant liquid in heat dissipation tank is flowed out from heat radiation box fluid hole 8-1, By cold flow pipeline 9, circulating pump 7, Battery case feed liquor through-hole 6-1 is passed through, from the feed liquor house steward entrance of microchannel spacer plate box 13 13-1-1 is flowed into feed liquor house steward 13-1;Magnetic fluid coolant liquid in feed liquor house steward 13-1 has four glide paths, first stream Dynamic route is magnetic fluid coolant liquid by feed liquor house steward 13-1 inflow feed liquor branch pipe 13-2D, then passes through connecting branch 13- respectively 2D-1, connecting branch 13-2D-2, connecting branch 13-2D-3, connecting branch 13-2D-4, connecting branch 13-2D-5 are pooled to out Liquid branch pipe 13-3D finally flows into liquid outlet 13-4 from liquid branch pipe 13-3D out;Article 2 glide path is magnetic fluid coolant liquid By feed liquor house steward 13-1 flow into feed liquor branch pipe 13-2C, then respectively by connecting branch 13-2C-1, connecting branch 13-2C-2, Connecting branch 13-2C-3, connecting branch 13-2C-4, connecting branch 13-2C-5 are pooled to out liquid branch pipe 13-3C, finally from liquid out Branch pipe 13-3C flows into liquid outlet 13-4;Article 3 glide path be magnetic fluid coolant liquid by feed liquor house steward 13-1 flow into Liquid branch pipe 13-2B, then pass through connecting branch 13-2B-1, connecting branch 13-2B-2, connecting branch 13-2B-3, connection branch respectively Pipe 13-2B-4, connecting branch 13-2B-5 are pooled to out liquid branch pipe 13-3B, finally flow into liquid outlet from liquid branch pipe 13-3B out 13-4;Article 4 glide path is magnetic fluid coolant liquid by feed liquor house steward 13-1 inflow feed liquor branch pipe 13-2, then is passed through respectively Connecting branch 13-2-1, connecting branch 13-2-2, connecting branch 13-2-3, connecting branch 13-2-4, connecting branch 13-2-5 converge Collect liquid branch pipe 13-3 out, finally flows into liquid outlet 13-4 from liquid branch pipe 13-3 out;The magnetic fluid of liquid outlet 13-4 is cooling Liquid exports 13-4-1 by liquid outlet, goes out fluid through-hole 6-2 across Battery case and flows into hot-fluid pipeline 3, finally by heat dissipation tank Body inlet opening 8-2 is flowed into heat dissipation tank, then carries out next circulation.The length of every glide path, stream in the spacer plate box of microchannel Dynamic resistance reaches unanimity, i.e. the flow of magnetic fluid coolant liquid reaches unanimity in every glide path;Each pair of feed liquor branch pipe and liquid out The length of linear connecting branch between branch pipe is much smaller than the length of curved connecting branch, therefore magnetic fluid coolant flow When every glide path in magnetic fluid coolant liquid temperature rise it is lower;The two common guarantee battery pack has the good temperature consistent Property.
Battery cell 12, battery cell 12B, battery cell 12C can pass through the good microchannel spacer plate box of heating conduction 13 carry out heat exchange with the magnetic fluid coolant liquid in micro channel systems, circulate process, the cooling liquid stream of magnetic fluid by above-mentioned Enter in heat dissipation tank, the magnetic fluid coolant liquid in heat dissipation tank is radiated by heat radiation box shell and heat dissipation tank lid housing and heat radiation box Piece 8-4, heat radiation box cooling fin 8-4B, heat radiation box cooling fin 8-4C, heat radiation box cooling fin 8-4D, heat radiation box cooling fin 8-4E, heat radiation box cooling fin 8-4F, heat dissipation case lid cooling fin 2-1 carry out heat exchange.
After hot-fluid Tube Temperature Sensor 4 detects the temperature of magnetic fluid coolant liquid higher than setting value, electronic control is single First ECU15 controls electromagnet 11, electromagnet 11B, electromagnet 11C, electromagnet 11D, electromagnet 11E, electromagnet 11F, electromagnet 11G, electromagnet 11H, electromagnet 11I, electromagnet 11J, electromagnet 11K, electromagnet 11L are in running order, inside heat dissipation tank Equally distributed magnetic field is formed, temperature increases after the magnetic fluid coolant liquid in heat dissipation tank is magnetized;Electronic control unit ECU simultaneously Outside air is transported to heat radiation box cooling fin 8-4, heat radiation box cooling fin 8-4B, heat radiation box by 15 opening speed-regulating fans 1 Cooling fin 8-4C, heat radiation box cooling fin 8-4D, heat radiation box cooling fin 8-4E, heat radiation box cooling fin 8-4F, heat dissipation case lid It radiates on cooling fin 2-1 to heat dissipation tank, makes the temperature of the magnetic fluid coolant liquid in heat dissipation tank close to environment temperature;Due to dissipating Hot tank material is magnetic shielding material, after the outside of heat dissipation tank does not have magnetic field, magnetic fluid coolant liquid to flow out heat dissipation tank, is in magnetic originally The magnetic refrigerating material nano particle of change state occurs demagnetization and generates temperature drop, is further decreased to the temperature of magnetic fluid coolant liquid Below environment temperature;Flange-cooled heat-dissipation box structure combination active air cooling design realizes good heat dissipation effect, magnetic refrigeration Magnetic fluid coolant liquid further generates temperature drop when material demagnetizes, and the high temperature heat-sinking capability of heat management system is greatly improved.
Electronic control unit ECU 15 monitors electricity by hot-fluid Tube Temperature Sensor 4, cold flow Tube Temperature Sensor 10 The magnetic fluid coolant temperature in pond case exit and heat dissipation tank exit;When the magnetic current in battery case exit and heat dissipation tank exit When body COOLANT TEMPERATURE, electronic control unit ECU 15 enhances the magnetic inside heat dissipation tank by increasing the electric current of electromagnet , bigger temperature drop is generated when magnetic refrigerating material nano particle being made to demagnetize, and further reduced the temperature of magnetic fluid coolant liquid, together When electronic control unit ECU 15 by improving the faster rotational speed speed air flow of speed-regulating fan 1, further enhance heat dissipation The radiating efficiency of case;So battery pack can obtain good heat dissipation effect under the different operating conditions of automobile.
After hot-fluid Tube Temperature Sensor 4 detects the temperature of magnetic fluid coolant liquid lower than setting value, electronic control is single It is in running order that first ECU 15 controls U-shaped heating tube 14, while electronic control unit ECU 15 closes electromagnet and speed-regulating wind Fan 1;U-shaped heating tube 14 heats the low temperature magnetic fluid coolant liquid in heat dissipation tank, the magnetic due to the presence in not no magnetic field, after heating Temperature drop does not occur after fluid coolant liquid outflow heat dissipation tank, flows directly into the micro channel systems of microchannel spacer plate box 13 to battery list Body 12, battery cell 12B, battery cell 12C are heated;When hot-fluid Tube Temperature Sensor 4 monitors battery case exit Magnetic fluid coolant temperature when being increased to the minimum normal working temperature of battery pack, electronic control unit ECU 15 disconnects U-shaped and adds The control circuit of heat pipe 14 makes system realize adjustable low-temperature heat ability.
When hot-fluid Tube Temperature Sensor 4 detects that the temperature of magnetic fluid coolant liquid is in the normal temperature range of battery pack When interior, electronic control unit ECU 15 only makes circulating pump 7 in running order, and speed-regulating fan 1, electromagnet, U-shaped heating tube 14 are equal In off position.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to the disclosure, model not is protected to the disclosure The limitation enclosed, those skilled in the art should understand that, on the basis of the technical solution of the disclosure, those skilled in the art are not Need to make the creative labor the various modifications or changes that can be made still within the protection scope of the disclosure.

Claims (10)

1. a kind of temperature control system, it is characterized in that: including heat dissipation tank, storage case, hot-fluid pipeline, cold flow pipeline and actuator, Wherein, the side of the heat dissipation tank and storage case is formed back by hot-fluid piping connection, the other side by cold flow piping connection Road is provided with actuator on the circuit, to drive circulating for internal flow, on the hot-fluid pipeline and cold flow pipeline It is provided with temperature sensor;
The heat dissipation tank includes heat radiation box, and the heat radiation box outer is successively arranged with multiple cooling fins, the heat radiation box The opposite inner wall of inner surface at least two on be provided with multiple one-to-one electromagnets, be provided in the heat radiation box plus Pipe line;
The storage case includes external heat insulating box and internal microchannel spacer plate box, and the microchannel spacer plate box includes multiple The accommodating chamber being separated by with microchannel partition, microchannel partition box body front and back walls face are internally provided with horizontal and vertical Several connecting lines, the microchannel diaphragm internal are provided with multiple connecting branches, the connecting branch and the connecting tube Road connection;
By the working condition of control permanent magnet or heating pipeline, realize that the fluid flowed out in heat dissipation tank reaches set temperature, and It is recycled in circuit under the action of actuator, carries out being applied object cooling or heating to what is accommodated in accommodating chamber.
2. a kind of temperature control system as described in claim 1, it is characterized in that: the heat insulating box is made of heat-barrier material Cuboid opening shell, there is feed liquor through-hole and fluid through-hole out at left and right sides of cabinet respectively, the position and microchannel of feed liquor through-hole every The position of feed liquor manifold entrance matches on plate case, out the position of the position of fluid through-hole and liquid outlet outlet on the spacer plate box of microchannel It sets and matches.
3. a kind of temperature control system as described in claim 1, it is characterized in that: the fluid channel packet of the microchannel spacer plate box It includes feed liquor house steward, feed liquor branch pipe, connecting branch, go out liquid branch pipe and liquid outlet;Feed liquor house steward is located on front side of the spacer plate box of microchannel Wall surface lower part, feed liquor branch pipe are distributed in the microchannel partition front of microchannel spacer plate box vertically, and liquid branch pipe is distributed in micro- vertically out The microchannel partition rear portion of channel partition case, liquid outlet are located at wall surface top on rear side of the spacer plate box of microchannel;Feed liquor house steward and each A feed liquor branch pipe connection, liquid outlet is connect with each liquid branch pipe out, by one group of company between each pair of feed liquor branch pipe and out liquid branch pipe Branch pipe is connect to be connected.Above structure can further guarantee that fluid can be three-dimensional flows uniformly through each accommodating chamber, be formed Uniform temperature controlled environment guarantees the temperature consistency of controlled device;
Further, the spacing of the microchannel partition is identical.
4. a kind of temperature control system as described in claim 1, it is characterized in that: the heat radiation box includes heat radiation box shell And cooling fin, the left and right wall surface of heat radiation box shell have an inlet opening, fluid hole respectively, one group of cooling fin arranged in a uniform and dissipate Hot tank body shell body is cast integrally, and the cooling fin is arranged in parallel, and is spaced identical.
5. a kind of temperature control system as described in claim 1, it is characterized in that: being provided with speed-regulating wind on the outside of the heat dissipation tank Machine.
6. a kind of temperature control system as described in claim 1, it is characterized in that: the heat dissipation tank is magnetic shielding material, thereon It is removably connected with heat dissipation case lid, the heat dissipation case lid includes heat dissipation tank lid housing and cooling fin, the cooling fin and heat dissipation tank Lid housing casting is integrated.
7. a kind of temperature control system as claimed in claim 6, it is characterized in that: heat dissipation tank lid housing bottom is provided with only Mouthful, and nested together inside and outside seam allowance and the seam allowance of heat radiation box case top, form sealing, dissipating with magnetic screen function Hot tank.
8. battery pack thermal management system, it is characterized in that: include such as temperature control system of any of claims 1-7, It is characterized in that: each battery cell of setting in each accommodating chamber.
9. a kind of Thermal Management System for EV Battery Packs, it is characterized in that: including battery pack heat management as claimed in claim 8 System, electromagnet are controlled by control circuit, and the control circuit is connected with the electronic control unit of electric car, the electronics Control unit is also connected with the temperature sensor and actuator of heating pipeline control circuit, hot-fluid pipeline and cold flow pipeline.
10. based on the working method of Thermal Management System for EV Battery Packs as claimed in claim 9, it is characterized in that: when inspection The temperature of magnetic fluid coolant liquid is measured lower than setting value, control heating pipeline work controls permanent magnet and do not work, realizes to magnetic current The heating of body coolant liquid guarantees the normal working temperature environment of battery pack;
When the temperature for detecting magnetic fluid coolant liquid is higher than predetermined value, control permanent magnetism body running, control heating pipeline does not work, Equally distributed magnetic field is formed in heat dissipation tank, the magnetic refrigerating material nano particle in magnetic fluid coolant liquid in heat dissipation tank is magnetized After generate temperature rise, make magnetic fluid coolant temperature increase, radiated using cooling fin, the outside of heat dissipation tank does not have magnetic field, magnetic After fluid coolant liquid flows out heat dissipation tank, the magnetic refrigerating material nano particle in magnetized state occurs originally in magnetic fluid coolant liquid It demagnetizes and generates temperature drop, so that the temperature of magnetic fluid coolant liquid is reduced to environment temperature hereinafter, guaranteeing the normal work temperature of battery pack Spend environment.
CN201811150022.0A 2018-09-29 2018-09-29 Temperature control system, Thermal Management System for EV Battery Packs and method based on magnetic Refrigeration Technique Pending CN109149012A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110822972A (en) * 2019-11-11 2020-02-21 于珍 Energy-saving efficient nano mixed liquid sectional radiator
CN111132511A (en) * 2019-12-13 2020-05-08 杭州泰宏新能源技术有限公司 New energy automobile block terminal water-cooling radiator
CN111540971A (en) * 2020-05-29 2020-08-14 福州游标卡尺网络科技有限公司 Intelligent temperature control system of lithium battery energy storage cabinet
CN112151911A (en) * 2020-09-29 2020-12-29 海南电网有限责任公司电力科学研究院 Sulphur removal heat dissipation protection device for storage battery
CN112206115A (en) * 2020-08-27 2021-01-12 浙江大学 Medical intelligent ward round car capable of continuously and stably supplying power

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110822972A (en) * 2019-11-11 2020-02-21 于珍 Energy-saving efficient nano mixed liquid sectional radiator
CN111132511A (en) * 2019-12-13 2020-05-08 杭州泰宏新能源技术有限公司 New energy automobile block terminal water-cooling radiator
CN111540971A (en) * 2020-05-29 2020-08-14 福州游标卡尺网络科技有限公司 Intelligent temperature control system of lithium battery energy storage cabinet
CN112206115A (en) * 2020-08-27 2021-01-12 浙江大学 Medical intelligent ward round car capable of continuously and stably supplying power
CN112151911A (en) * 2020-09-29 2020-12-29 海南电网有限责任公司电力科学研究院 Sulphur removal heat dissipation protection device for storage battery

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