CN113161676A - Battery heat dissipation system for new energy automobile and method thereof - Google Patents
Battery heat dissipation system for new energy automobile and method thereof Download PDFInfo
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- CN113161676A CN113161676A CN202110450972.0A CN202110450972A CN113161676A CN 113161676 A CN113161676 A CN 113161676A CN 202110450972 A CN202110450972 A CN 202110450972A CN 113161676 A CN113161676 A CN 113161676A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a battery heat dissipation system for a new energy automobile, which comprises a shell, a battery piece and a heat dissipation mechanism, wherein the battery piece and the heat dissipation mechanism are arranged in the shell at intervals; the heat dissipation mechanism comprises two heat dissipation assemblies which are oppositely arranged, a driving assembly is arranged at the top end of each heat dissipation assembly, the heat dissipation assemblies are in transmission connection with the driving assemblies and comprise heat dissipation frames, a plurality of first heat dissipation tubes and a plurality of second heat dissipation tubes are arranged in the heat dissipation frames, the first heat dissipation tubes and the second heat dissipation tubes are arranged at intervals, the first heat dissipation tubes are correspondingly provided with first cooling fins, and the second heat dissipation tubes are correspondingly provided with second cooling fins. The temperature of the battery can be controlled through the characteristic that the latent heat storage temperature of the phase-change material is unchanged, and the problem that the capacity of the battery is attenuated due to low temperature in winter can be solved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery cooling system for a new energy automobile and a method thereof.
Background
With the continuous development of science and technology, automobiles become indispensable tools for riding instead of walk in daily life of people. According to the information of the national statistical bureau, the quantity of the civil automobiles in 2019 in China is 25376.38 thousands, which means that one automobile exists in every 5.5 persons on average. However, fuel-powered vehicles consume large amounts of fossil energy, with its CO emissions2Isothermal chamber gases can have adverse effects on the environment. In order to solve the problem, electric automobiles are produced at the same time, and electric energy is used as a power source of the automobiles, so that the emission of harmful tail gas can be effectively reduced, and the environment is protected. Considering that the lithium ion battery has the characteristics of higher specific energy, long service life, short charging time and the like, the lithium ion battery has become the first choice for the battery of the electric automobile at present. However, if a large amount of heat energy generated in the use process of the battery is discharged in time, the battery and other parts of the automobile can be damaged, and the performance and the service life of the electric automobile are reduced. Therefore, the heat dissipation performance of the battery is enhanced, and the development of a novel cooling system is of great significance to the further research and development of the electric automobile.
Cooling systems can be divided into two categories, active cooling systems and passive cooling systems. The electric system in the market at present mainly adopts an air cooling system (active cooling) and increases the heat exchange coefficient by adopting a forced convection mode. However, the heat in the battery is often not conducted to the surrounding environment in time, and the heat dissipation effect is poor. And the water cooling system (active cooling) has better heat dissipation effect, and can quickly reduce the temperature of the battery so that the battery is at a proper operating temperature. However, the water cooling system is expensive in manufacturing cost, and liquid is easy to leak and short circuit is easy to occur. And the space of the electric automobile is limited, and the equipment required by the active cooling system occupies more land, so that the space of other equipment is greatly occupied. Compared with an active cooling system, the passive cooling system does not need additional equipment for forced convection heat transfer, so that the space occupancy of the heat dissipation equipment is reduced, and the electric energy consumption can be reduced. But the heat exchange coefficient of passive cooling is lower, and the heat dissipation effect is poorer. The phase-change material can absorb or release a large amount of energy in the process of changing the phase state, and has great application prospect in the aspects of energy storage and release. If the heat generated in the working process of the battery is stored in the phase-change material firstly, the battery is prevented from being overheated, and then the heat is dissipated by using heat transfer elements with extremely high heat conductivity, such as a heat pipe and the like, so that the temperature rise process of the battery can be slowed down, the heat dissipation strength is reduced, the cost is reduced while the heat exchange efficiency is improved, meanwhile, the phase-change material can store part of the heat generated in the working process of the battery, the peripheral temperature of the battery is maintained, and the problem of battery capacity attenuation caused by low peripheral temperature of the battery is solved. Therefore, further research on the method for combining the phase-change material with the heat exchange element has important significance for solving the problem of heat dissipation of the battery of the electric automobile.
Disclosure of Invention
The invention aims to provide a battery heat dissipation system for a new energy automobile and a method thereof, which are used for solving the problems in the prior art, can control the temperature of a battery through the characteristic that the latent heat storage temperature of a phase change material is unchanged, and can solve the problem that the capacity of the battery is attenuated due to low temperature in winter.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a battery heat dissipation system for a new energy automobile, which comprises a shell, a battery piece and a heat dissipation mechanism, wherein the battery piece and the heat dissipation mechanism are arranged in the shell at intervals;
the heat dissipation mechanism comprises two heat dissipation assemblies which are oppositely arranged, a driving assembly is arranged at the top end of each heat dissipation assembly, the heat dissipation assemblies are connected with the driving assembly in a transmission mode, each heat dissipation assembly comprises a heat dissipation frame, a plurality of first heat dissipation tubes and a plurality of second heat dissipation tubes are arranged in the heat dissipation frame, the first heat dissipation tubes and the second heat dissipation tubes are arranged at intervals, first cooling fins are correspondingly arranged on the first heat dissipation tubes, second cooling fins are correspondingly arranged on the second heat dissipation tubes, the first cooling fins and the second cooling fins are arranged in a staggered mode, and when the first cooling fins and the battery pieces are in contact, the second cooling fins and the second cooling tubes are in contact, and when the first cooling fins and the first cooling tubes are in contact, the second cooling fins and the battery pieces are in contact.
Preferably, two heat dissipation frame top is by supreme second collector pipe, the first collector pipe of having set gradually down, the second collector pipe with second cooling tube intercommunication, first collector pipe with first cooling tube intercommunication, it is a plurality of the delivery end intercommunication of second collector pipe has the second outlet pipe, and is a plurality of the delivery end intercommunication of first collector pipe has first outlet pipe, first outlet pipe with be provided with the suction pump on the second outlet pipe respectively, the suction pump with control mechanism electric connection.
Preferably, cavities are formed in the first radiating fin and the second radiating fin, phase-change materials are filled in the cavities, a pressure sensor is arranged in the cavity of any one of the first radiating fins, and the pressure sensor is electrically connected with the control mechanism.
Preferably, the phase change material layer and the phase change material filled in the cavity are both RT44HC expanded graphite composite phase change materials.
Preferably, one side of the first radiating fin close to the first radiating tube and one side of the second radiating fin close to the second radiating tube are respectively provided with a plurality of diffusion sheets, the first radiating fin is in contact with the first radiating tube through the diffusion sheets, the second radiating fin is in contact with the second radiating tube through the diffusion sheets, and the cavity is communicated with the diffusion sheets.
Preferably, the control mechanism comprises a monitoring end, and the monitoring end is electrically connected with the water suction pump and the pressure sensor.
Preferably, a plurality of heat insulation plates are arranged in any heat dissipation frame, the heat insulation plates are located between the adjacent first cooling fins and the adjacent second cooling fins, and two ends of each heat insulation plate are fixedly connected with the heat dissipation frame.
An implementation method of a battery cooling system for a new energy automobile comprises the following steps:
a. starting a heat dissipation system: firstly, the battery plate operates, heat generated by the battery plate is exchanged by the phase-change material in the first radiating plate, and meanwhile, the pressure sensor operates to detect the pressure in the cavity;
b. the driving component starts: after the step a is finished, the pressure sensor detects that the pressure in the cavity reaches the designated pressure, the motor and the water pump are driven to work, the water pump on the first water outlet pipe works when the first radiating fin is contacted with the first radiating pipe, and the water pump on the second water outlet pipe works when the second radiating fin is contacted with the second radiating pipe;
c. heat conduction of the phase change material layer: and c, after the step b is finished, conducting heat from the phase change material layer by the residual heat.
The invention discloses the following technical effects:
the battery heat dissipation system for the new energy automobile and the use method thereof provided by the invention have the advantages that the heat dissipation is jointly carried out through the matching of the internal heat dissipation mechanism and the phase change material layer on the outer wall of the shell, when the battery piece generates heat during working, the first heat dissipation sheet and the second heat dissipation sheet alternately contact the battery piece to exchange heat with the heat generated by the battery piece, the control mechanism controls the heat dissipation mechanism to work, so that the heat generated by the battery piece is discharged out of the shell through the first heat dissipation pipe and the second heat dissipation pipe, the peripheral temperature of the battery piece in the shell is further kept, the temperature of the battery can be controlled through the characteristic that the latent heat storage temperature of the phase change material is unchanged, and the problem that the battery capacity is.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a perspective view of a battery cooling system for a new energy automobile;
fig. 2 is a perspective view of the battery cooling system for the new energy automobile with a housing removed;
FIG. 3 is a perspective view of the drive assembly;
fig. 4 is a partial top view of a battery cooling system for a new energy automobile;
fig. 5 is a perspective view of the first and second heat dissipating tubes;
FIG. 6 is a perspective view of the belt protection cover;
FIG. 7 is a schematic structural diagram of a first heat sink;
wherein, 1-shell, 2-battery piece, 3-phase change material layer, 4-radiating frame, 51-first radiating pipe, 52-second radiating pipe, 61-first radiating fin, 62-second radiating fin, 71-first water collecting pipe, 72-second water collecting pipe, 81-first water outlet pipe, 82-second water outlet pipe, 9-water pump, 10-cavity, 11-phase change material, 12-pressure sensor, 13-diffusing piece, 14-driving plate, 15-driving motor, 161-first rotating column, 162-second rotating column, 171-first hinging plate, 172-second hinging plate, 18-connecting plate, 19-long hole, 20-monitoring end, 21-heat insulating plate, 22-water supply pipe, 23-sliding plate, 24-protective cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a battery heat dissipation system for a new energy automobile, which comprises a shell 1, and a battery piece 2 and a heat dissipation mechanism which are arranged in the shell 1, wherein the battery piece 2 and the heat dissipation mechanism are arranged at intervals, a phase change material layer 3 and a control mechanism are arranged outside the shell 1, the phase change material layer 3 is fixedly connected with the shell 1, and the control mechanism is electrically connected with the heat dissipation mechanism; the heat dissipation mechanism comprises two heat dissipation components which are oppositely arranged, a driving component is arranged at the top end of each heat dissipation component, the heat dissipation component is in transmission connection with the driving component and comprises a heat dissipation frame 4, a plurality of first radiating pipes 51 and a plurality of second radiating pipes 52 are arranged in the radiating frame 4, the first radiating pipes 51 and the second radiating pipes 52 are arranged at intervals, the first radiating pipe 51 is correspondingly provided with a first radiating fin 61, the second radiating pipe 52 is correspondingly provided with a second radiating fin 62, the first radiating fin 61 and the second radiating fin 62 are arranged in a staggered manner, and when the first heat sink 61 is in contact with the battery cell 2, the second heat sink 62 is in contact with the second heat dissipation pipe 52, when the first heat dissipation fin 61 is in contact with the first heat dissipation pipe 51, the second heat dissipation fin 62 is in contact with the battery cell 2.
The heat dissipation system performs heat dissipation through the cooperation of the internal heat dissipation mechanism and the phase change material layer 3 on the outer wall of the shell 1, when the battery piece 2 generates heat during working, the first heat dissipation sheet 61 and the second heat dissipation sheet 62 alternately contact the battery piece 2 and exchange heat with the heat generated by the battery piece 2, the control mechanism controls the heat dissipation mechanism to work, when the first heat dissipation sheet 61 contacts the battery piece 2, the first heat dissipation sheet 61 exchanges heat with the battery piece 2, at the moment, the second heat dissipation sheet 62 contacts the second heat dissipation pipe 52, and the second heat dissipation sheet 62 exchanges heat with the second heat dissipation pipe 52; when the second heat sink 62 contacts the battery piece 2, the second heat sink 62 exchanges heat with the battery piece 2, and at this time, the first heat sink 61 contacts the first heat dissipation pipe 51, and the first heat sink 61 exchanges heat with the first heat dissipation pipe 51. The heat conducting medium in the first heat dissipation pipe 51 and the second heat dissipation pipe 52 is water, so that the heat in the first heat dissipation fin 61 and the second heat dissipation fin 62 can be rapidly conducted out, and the purpose of rapid heat exchange is further achieved.
Furthermore, two 4 tops of heat dissipation frame are from lower supreme second collector pipe 72, first collector pipe 71 of having set gradually, second collector pipe 72 with second cooling tube 52 intercommunication, first collector pipe 71 with first cooling tube 51 intercommunication, it is a plurality of the delivery end intercommunication of second collector pipe 72 has second outlet pipe 82, and is a plurality of the delivery end intercommunication of first collector pipe 71 has first outlet pipe 81, first outlet pipe 81 with be provided with suction pump 9 on the second outlet pipe 82 respectively, suction pump 9 with control mechanism electric connection. The bottom end of the heat dissipation frame is provided with a water supply pipe 22, and the water supply pipe 22 is respectively communicated with the first heat dissipation pipe 51 and the second heat dissipation pipe 52. The water supply pipe 22 is used for providing cold water, and the number of the first cooling fins 61 and the second cooling fins 62 is several, so that the water after heat exchange is completed is collected through the first water collecting pipe 71 and the second water collecting pipe 72, and is led out through the first water outlet pipe 81 and the second water outlet pipe 82 in a centralized manner, the water pumps 9 on the first water outlet pipe 81 and the second water outlet pipe 82 work independently and are electrically connected by a control mechanism, when the first cooling fins 61 contact with the first cooling pipe 51, the water pumps 9 on the first water outlet pipe 81 work to lead out the water after heat exchange, when the second cooling fins 62 contact with the second cooling pipe 52, the water pumps 9 on the second water outlet pipe 82 work to lead out the water after heat exchange, the purpose of respectively arranging the first water outlet pipe 81 and the second water outlet pipe 82 is to reduce the pipe necks, so that the water flow rates in the first water outlet pipe 81 and the second water outlet pipe 82 are increased, and then make the water velocity in first cooling tube 51 and the second cooling tube 52 increase, improve the radiating effect, and two suction pumps 9 work alone, only start when needing, reduce energy consumption.
Further, cavities 10 are formed in the first cooling fin 61 and the second cooling fin 62, the cavities 10 are filled with the phase-change material 11, a pressure sensor 12 is arranged in the cavity 10 of any one of the first cooling fins 61, and the pressure sensor 12 is electrically connected with the control mechanism. The cavity 10 is used for storing the phase-change material 11, the phase-change material 11 is changed from a solid state to a liquid state after being heated, the pressure in the cavity 10 is increased, when the pressure sensor 12 detects that the pressure in the cavity 10 reaches a specified pressure, the pressure can be fed back to the monitoring end 20, and the monitoring end controls the driving motor 15 to work, so that the driving assembly works. Because the vehicle runs in a short distance, the heat generated by the battery plate 2 cannot reach the melting temperature of the phase-change material 11, and at the moment, if the driving assembly works, the phenomenon of energy waste exists, the pressure sensor 12 is arranged for detecting in real time, and the driving assembly starts to work only when the temperature generated by the battery plate 2 continuously enables the phase-change material 11 to be changed from a solid state to a liquid state and the pressure in the cavity 10 rises to a specified pressure. When the battery piece 2 works for a long time, the residual heat which is not radiated by the partial radiating mechanism is led out from the shell 1 and exchanges heat with the phase-change material layer 3 on the shell 1, meanwhile, the heat can be stored in the phase-change material layer 3, when the battery piece is started next time, particularly in winter, the ambient temperature of the internal battery piece 2 can be maintained, and the problem of attenuation caused by low temperature of the battery capacity in winter is solved.
Further, the phase-change material layer 3 and the phase-change material 11 filled in the cavity 10 are both RT44HC expanded graphite composite phase-change materials. The RT44HC expanded graphite composite phase-change material has a melting temperature of 44 ℃, latent heat of 250kJ/kg, thermal conductivity of 0.23W/mK, and the thickness of the phase-change material 11 is 25mm-35 mm.
Further, a plurality of diffusion plates 13 are respectively disposed on one side of the first heat dissipation pipe 51 close to the first heat dissipation fin 61 and one side of the second heat dissipation fin 62 close to the second heat dissipation pipe 52 close to the first heat dissipation fin 61, the first heat dissipation fin 61 is in contact with the first heat dissipation pipe 51 through the diffusion plates 13, the second heat dissipation fin 62 is in contact with the second heat dissipation pipe 52 through the diffusion plates 13, and the cavity 10 is communicated with the diffusion plates 13. The diffusion sheet 13 is used for increasing the contact area between the first heat dissipation sheet 61 and the first heat dissipation tube 51, and between the second heat dissipation sheet 62 and the second heat dissipation tube 52, the diffusion sheet 13 is of an arc structure and can be wrapped on the first heat dissipation tube 51 or the second heat dissipation tube 52, and meanwhile, the first heat dissipation tube 51 and the second heat dissipation tube 52 are of coil pipe structures, so that the contact area between the heat dissipation sheet and the heat dissipation tubes is increased, and heat dissipation is facilitated.
Further, the driving assembly comprises a transmission plate 14, a plurality of transmission plates 14 are connected with a driving motor 15 in a transmission way, a plurality of first rotating columns 161 and a plurality of second rotating columns 162 are fixedly connected to the top end of the transmission plate 14, the first rotating column 161 and the second rotating column 162 are arranged at intervals, a first hinge plate 171 and a second hinge plate 172 are respectively connected to the first rotating column 161 and the second rotating column 162 in a rotating manner, the number of the first hinge plate 171 and the second hinge plate 172 is two, the ends of the first hinge plate 171 and the second hinge plate 172 are hinged with a connecting plate 18, the top end of the heat dissipation frame 4 is provided with a plurality of long holes 19, the connecting plate 18 at the tail end of the first hinge plate 171 passes through the long holes 19 and is fixedly connected with the first heat dissipation fins 61, the connecting plate 18 at the end of the second hinge plate 172 passes through the long hole 19 and is fixedly connected with the second heat sink 62. A sliding plate 23 is fixed on the connecting plate 18, the sliding plate 23 is located at the top end of the heat dissipation frame 4, the sliding plate 23 is connected with the heat dissipation frame 4 in a sliding manner, and a protective cover 24 is arranged on the heat dissipation frame 4. The driving assembly is used for driving the first cooling fins 61 and the second cooling fins 62 to perform a staggering motion, the first hinged plate 171 and the second hinged plate 172 are identical in structure and opposite in direction, the first hinged plate 171 and the second hinged plate 172 share one driving plate 14, when the driving plate 14 moves, if the two first hinged plates 171 perform an opening motion, the two second hinged plates 172 perform a contracting motion, and then the first cooling fins 61 and the second cooling fins 62 in the two cooling assemblies which are arranged oppositely are driven to move, so that the purpose of performing the staggering motion on the first cooling fins 61 and the second cooling fins 62 is achieved. The protective cover 24 plays a role in protecting the heat dissipation mechanism, the highest end of the protective cover 24 can be flush with the top end of the battery piece 2, the whole device is convenient to place, and the sliding plate 23 plays a role in assisting sliding.
Further, the control mechanism comprises a monitoring end 20, and the monitoring end 20 is electrically connected with the water pump 9 and the pressure sensor 12. The control terminal 20 plays a role in receiving the signal transmitted by the pressure sensor 12 and controlling the start and pause of the water pump 9 and the driving motor 15, and the control terminal 20 may be a computer or other device, which belongs to the prior art and is not described herein in detail.
Furthermore, a plurality of heat insulation plates 21 are arranged in any heat dissipation frame 4, the heat insulation plates 21 are located between the adjacent first cooling fins 61 and the adjacent second cooling fins 62, and two ends of each heat insulation plate 21 are fixedly connected with the heat dissipation frame 4. The heat insulation plate 21 is a heat insulation material, and the heat insulation plate 21 is fixedly connected with the heat dissipation frame 4, so that the first cooling fins 61 and the second cooling fins 62 are respectively positioned in different chambers, and are not mutually influenced in the heat exchange process, thereby avoiding the influence of the cooling fins which are carrying out heat exchange with the battery piece 2 on the cooling fins which are carrying out heat exchange with the cooling pipes, and further improving the heat dissipation efficiency.
An implementation method of a battery cooling system for a new energy automobile comprises the following steps:
a. starting a heat dissipation system: firstly, the battery piece 2 operates, the battery piece 2 generates heat to exchange heat through the phase change material in the first cooling fin 61, and meanwhile, the pressure sensor 12 operates to detect the pressure in the cavity 10. When the vehicle is started, the heat dissipation system is started, the pressure sensor 12 detects the pressure in the cavity 10 in real time, and only when the temperature of the battery piece 2 is continuously generated, so that the phase-change material 11 is changed from a solid state to a liquid state, and the pressure in the cavity 10 is increased to a specified pressure, the driving assembly starts to work.
b. The driving component starts: after the step a is completed, the pressure sensor 12 detects that the pressure in the cavity 10 reaches the specified pressure, the driving motor 15 and the water pump 9 are operated, and when the first heat dissipation fin 61 contacts the first heat dissipation pipe 51, the water pump 9 on the first water outlet pipe 81 is operated, and when the second heat dissipation fin 62 contacts the second heat dissipation pipe 52, the water pump 9 on the second water outlet pipe 82 is operated. The vehicle carries out long-time operation, and single fin can not satisfy the heat dissipation demand of battery, therefore after the pressure in cavity 10 reached the assigned pressure, drive assembly work, drive first fin 61 and second fin 62 motion, because control end 20 controls driving motor 15's operation, consequently can make suction pump 9 and driving motor 15 cooperate, when being in different direction of motion according to driving motor 15, suction pump 9 on first outlet pipe 81 and the second outlet pipe 82 works respectively, accomplishes the operation of drawing water.
c. The phase change material layer 3 conducts heat: after step b is completed, the residual heat is conducted by the phase change material layer 3. In the process of heat dissipation of the battery piece 2, part of residual heat cannot be absorbed and dissipated by the heat dissipation mechanism, so that the phase change material layer 3 is arranged outside the shell 1, the residual heat is absorbed and stored, the ambient temperature of the internal battery piece 2 can be maintained in winter, and the problem of attenuation caused by low temperature of the battery capacity in winter is solved.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. The battery heat dissipation system for the new energy automobile is characterized by comprising a shell (1), and a battery piece (2) and a heat dissipation mechanism which are arranged in the shell (1), wherein the battery piece (2) and the heat dissipation mechanism are arranged at intervals, a phase change material layer (3) and a control mechanism are arranged outside the shell (1), the phase change material layer (3) is fixedly connected with the shell (1), and the control mechanism is electrically connected with the heat dissipation mechanism;
the heat dissipation mechanism comprises two heat dissipation assemblies which are oppositely arranged, a driving assembly is arranged at the top end of each heat dissipation assembly, the heat dissipation assemblies are connected with the driving assembly in a transmission mode, each heat dissipation assembly comprises a heat dissipation frame (4), a plurality of first heat dissipation tubes (51) and a plurality of second heat dissipation tubes (52) are arranged in the heat dissipation frame (4), the first heat dissipation tubes (51) and the second heat dissipation tubes (52) are arranged at intervals, first cooling fins (51) are correspondingly provided with first cooling fins (61), the second cooling tubes (52) are correspondingly provided with second cooling fins (62), the first cooling fins (61) and the second cooling fins (62) are arranged in a staggered mode, when the first cooling fins (61) are in contact with the battery pieces (2), the second cooling fins (62) are in contact with the second heat dissipation tubes (52), and when the first cooling fins (61) are in contact with the first cooling tubes (51), the second heat sink (62) is in contact with the battery plate (2).
2. The battery cooling system for the new energy automobile according to claim 1, characterized in that: two heat dissipation frame (4) top is by supreme second collector pipe (72), first collector pipe (71) of having set gradually down, second collector pipe (72) with second cooling tube (52) intercommunication, first collector pipe (71) with first cooling tube (51) intercommunication, it is a plurality of the delivery end intercommunication of second collector pipe (72) has second outlet pipe (82), and is a plurality of the delivery end intercommunication of first collector pipe (71) has first outlet pipe (81), first outlet pipe (81) with be provided with suction pump (9) on second outlet pipe (82) respectively, suction pump (9) with control mechanism electric connection.
3. The battery cooling system for the new energy automobile according to claim 1, characterized in that: cavities (10) are formed in the first radiating fin (61) and the second radiating fin (62), phase-change materials are filled in the cavities (10), a pressure sensor (12) is arranged in the cavity (10) of any one of the first radiating fin (61), and the pressure sensor (12) is electrically connected with the control mechanism.
4. The battery cooling system for the new energy automobile according to claim 3, characterized in that: the phase-change material layer (3) and the phase-change material (11) filled in the cavity (10) are both RT44HC expanded graphite composite phase-change materials.
5. The battery cooling system for the new energy automobile according to claim 3, characterized in that: one side of the first radiating fin (61) close to the first radiating pipe (51) and one side of the second radiating fin (62) close to the second radiating pipe (52) are respectively provided with a plurality of diffusion sheets (13), the first radiating fin (61) is in contact with the first radiating pipe (51) through the diffusion sheets (13), the second radiating fin (62) is in contact with the second radiating pipe (52) through the diffusion sheets (13), and the cavity (10) is communicated with the diffusion sheets (13).
6. The battery cooling system for the new energy automobile according to claim 3, characterized in that: the control mechanism comprises a monitoring end (20), wherein the monitoring end (20) is electrically connected with the water suction pump (9), the pressure sensor (12).
7. The battery cooling system for the new energy automobile according to claim 1, characterized in that: a plurality of heat insulation plates (21) are arranged in any heat dissipation frame (4), the heat insulation plates (21) are located between the adjacent first radiating fins (61) and the adjacent second radiating fins (62), and two ends of each heat insulation plate (21) are fixedly connected with the heat dissipation frame (4).
8. The implementation method of the battery cooling system for the new energy automobile according to claims 1 to 7, characterized in that the implementation method comprises the following steps:
a. starting a heat dissipation system: firstly, the battery plate (2) operates and works, heat generated by the battery plate (2) is exchanged by phase-change materials in the first radiating fin (61), and meanwhile, the pressure sensor (12) works to detect the pressure in the cavity (10);
b. the driving component starts: after the step a is finished, the pressure sensor (12) detects that the pressure in the cavity (10) reaches a specified pressure, the motor (15) and the water pump (9) are driven to work, when the first radiating fin (61) is in contact with the first radiating pipe (51), the water pump (9) on the first water outlet pipe (81) works, and when the second radiating fin (62) is in contact with the second radiating pipe (52), the water pump (9) on the second water outlet pipe (82) works;
c. the phase change material layer (3) conducts heat: and after the step b is finished, conducting heat from the phase change material layer (3) by the residual heat.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070107871A1 (en) * | 2005-11-17 | 2007-05-17 | Foxconn Technology Co., Ltd. | Heat sink |
| WO2011125505A1 (en) * | 2010-04-08 | 2011-10-13 | Jsr株式会社 | Electric storage device |
| US20150200428A1 (en) * | 2014-01-16 | 2015-07-16 | Ford Global Technologies, Llc | Serpentine cooling element for battery assembly |
| CN109818110A (en) * | 2019-03-13 | 2019-05-28 | 吉林工程技术师范学院 | A kind of new-energy automobile power battery structure |
| CN110391479A (en) * | 2019-08-12 | 2019-10-29 | 广东工业大学 | A kind of new-energy automobile and its thermal management device of battery |
| CN110635198A (en) * | 2019-10-22 | 2019-12-31 | 中国科学院理化技术研究所 | Heat dissipation device of power battery |
| CN110660944A (en) * | 2019-10-12 | 2020-01-07 | 华南理工大学 | Power battery pack heat dissipation device with heat pipe device and heat dissipation method thereof |
| CN111293248A (en) * | 2020-02-26 | 2020-06-16 | 重庆工业职业技术学院 | New energy automobile power battery cooling system and cooling control method |
| CN111477993A (en) * | 2020-05-16 | 2020-07-31 | 天津大学 | High-efficiency thermal management system for power battery pack |
| CN111697288A (en) * | 2020-07-24 | 2020-09-22 | 广东工业大学 | Power battery thermal management system with cold and hot working condition temperature regulation function |
| CN112652836A (en) * | 2020-12-16 | 2021-04-13 | 杭州科技职业技术学院 | Special battery heat abstractor of new energy automobile |
-
2021
- 2021-04-26 CN CN202110450972.0A patent/CN113161676B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070107871A1 (en) * | 2005-11-17 | 2007-05-17 | Foxconn Technology Co., Ltd. | Heat sink |
| WO2011125505A1 (en) * | 2010-04-08 | 2011-10-13 | Jsr株式会社 | Electric storage device |
| US20150200428A1 (en) * | 2014-01-16 | 2015-07-16 | Ford Global Technologies, Llc | Serpentine cooling element for battery assembly |
| CN109818110A (en) * | 2019-03-13 | 2019-05-28 | 吉林工程技术师范学院 | A kind of new-energy automobile power battery structure |
| CN110391479A (en) * | 2019-08-12 | 2019-10-29 | 广东工业大学 | A kind of new-energy automobile and its thermal management device of battery |
| CN110660944A (en) * | 2019-10-12 | 2020-01-07 | 华南理工大学 | Power battery pack heat dissipation device with heat pipe device and heat dissipation method thereof |
| CN110635198A (en) * | 2019-10-22 | 2019-12-31 | 中国科学院理化技术研究所 | Heat dissipation device of power battery |
| CN111293248A (en) * | 2020-02-26 | 2020-06-16 | 重庆工业职业技术学院 | New energy automobile power battery cooling system and cooling control method |
| CN111477993A (en) * | 2020-05-16 | 2020-07-31 | 天津大学 | High-efficiency thermal management system for power battery pack |
| CN111697288A (en) * | 2020-07-24 | 2020-09-22 | 广东工业大学 | Power battery thermal management system with cold and hot working condition temperature regulation function |
| CN112652836A (en) * | 2020-12-16 | 2021-04-13 | 杭州科技职业技术学院 | Special battery heat abstractor of new energy automobile |
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