CN112582703A - Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate - Google Patents

Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate Download PDF

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Publication number
CN112582703A
CN112582703A CN202010781358.8A CN202010781358A CN112582703A CN 112582703 A CN112582703 A CN 112582703A CN 202010781358 A CN202010781358 A CN 202010781358A CN 112582703 A CN112582703 A CN 112582703A
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heat pipe
battery
liquid cooling
heat
cooling plate
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CN112582703B (en
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唐爱坤
倪强
王军锋
单春贤
邵霞
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Jiangsu University
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Jiangsu University
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6552Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6554Rods or plates
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to a novel battery cooling structure based on coupling of a heat pipe and a liquid cooling plate, which comprises a battery, the liquid cooling plate and an L-shaped heat pipe, wherein the liquid cooling plate is arranged at the bottom of the battery, the L-shaped heat pipe comprises a vertical evaporation section and a horizontal condensation section, the evaporation section absorbs heat on the wall surface of a main body of the battery, and the condensation section transfers the heat absorbed by the evaporation section to the liquid cooling plate. According to the invention, the heat pipe is combined with the liquid cooling plate, the heat pipe takes away the heat on the wall surface of the battery main body, the heat passes through the evaporation section and the condensation section of the heat pipe and then is taken away through the liquid cooling plate, and the whole heat dissipation process does not need other energy supplies, so that the cooling method is an efficient and energy-saving cooling mode. The liquid cooling plate does not reduce the heat dissipation capacity of the bottom of the battery, and increases the heat dissipation of the wall surface of the main body of the battery, so that the total heat exchange effect is improved compared with the traditional cooling structure, the structure can effectively reduce the temperature of the wall surface of the battery, improve the charge and discharge performance of the battery, and reduce the influence of the reduction of the electric capacity of the battery caused by the temperature rise.

Description

Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate
Technical Field
The invention relates to the technical field of design and manufacture of new energy automobile power systems, in particular to a novel battery cooling structure based on coupling of a heat pipe and a liquid cooling plate.
Background
In order to reduce the dependence on fossil fuels and the emission of pollutants, governments and automobile enterprises in various countries around the world invest a large amount of manpower and material resources to develop new energy electric automobiles. Compared with the traditional energy automobile, the new energy electric automobile has the advantages of zero emission, simple structure, convenience in maintenance and the like. The new energy electric automobile provides power by a chemical energy storage device of the new energy electric automobile, and the lithium ion power battery has the advantages of high specific energy, wide working temperature range, long cycle life and the like and is a main vehicle-mounted chemical energy storage device. The service life and the stability of the batteries are seriously influenced by the rise of the temperature of the batteries, meanwhile, the inconsistency of the capacitance among the batteries is aggravated, and the loss of electrolyte, electrodes and a partition board of the batteries is accelerated, so that the performances of the new energy electric automobile are closely related to the uniformity of the temperature of the battery pack, and therefore, a plurality of technologies related to a battery cooling system emerge in recent years. Like patent application No. 201810671776.4 (the patent name is "a liquid cooling plate with passageway"), point out through designing two-layer heat conduction body for the heat conduction efficiency and the heat-sinking capability of battery improve greatly, patent application No. 201820720104.3 (the patent name is "a water cooling plate of harmonica tubular structure") will extrude flat pipe preparation water cooling plate and be used for the cooling of battery module.
However, there are certain problems with this type of technology. For example, the current liquid cooling technology is generally only used for cooling the bottom of the battery, but the wall surface of the main body of the battery is not well cooled, so that the uniformity of the temperature of the battery is poor, the performance and the heat dissipation effect of the battery are further reduced, and even the danger of ignition and explosion of the battery is caused. Therefore, in the development of new energy automobiles, particularly in the field of thermal management of power batteries of vehicles, novel cooling technologies are urgently needed to solve the above problems.
Disclosure of Invention
In order to solve the prior technical problem, the invention provides a novel battery cooling structure based on coupling of a heat pipe and a liquid cooling plate.
The invention specifically comprises the following contents: the utility model provides a novel battery cooling structure based on heat pipe and liquid cooling plate coupling, includes battery, liquid cooling plate and L type heat pipe, the liquid cooling plate sets up the bottom at the battery, L type heat pipe includes vertical evaporation zone and horizontally condensation segment, and the evaporation zone absorbs battery main part wall heat, and the condensation segment shifts the heat to the liquid cooling plate that the evaporation zone absorbs.
Furthermore, an upper copper plate is arranged between the evaporation section of the L-shaped heat pipe and the wall surface of the battery, the upper copper plate is vertically arranged and clings to the evaporation section of the L-shaped heat pipe, and the end part of the evaporation section of the L-shaped heat pipe is in sealed welding connection with the edge of the upper copper plate.
Furthermore, heat-conducting silicone grease is filled between the upper copper plate and the wall surface of the battery.
Further, be equipped with down the copper between L type heat pipe's condensation segment and the liquid cooling plate, the copper level sets up and hugs closely L type heat pipe's condensation segment down, and L type heat pipe's condensation segment tip and the edge sealing welded connection of copper down.
Furthermore, heat-conducting silicone grease is filled between the lower copper plate and the liquid cooling plate.
Furthermore, a reserved space is arranged at the bottom of the upper copper plate and the bottom of the battery, and the height of the reserved space is 4 +/-1 mm.
Furthermore, the L-shaped heat pipe comprises a copper shell, a liquid absorption core and a heat transfer medium, wherein the liquid absorption core and the heat transfer medium are both arranged in the copper shell, and the liquid absorption core absorbs the heat transfer medium from the condensation section to the evaporation section.
Furthermore, the L-shaped heat pipe is a copper water sintered heat pipe, the diameter of the initial heat pipe is 6 +/-1 mm, the initial heat pipe is pressed into a flat pipe body with the width of 8 +/-1 mm and the thickness of 3 +/-1 mm, and the heat pipe is further bent into an L shape.
The invention has the beneficial effects that: according to the invention, the heat pipe is combined with the liquid cooling plate, the heat pipe takes away the heat on the wall surface of the battery main body, the heat passes through the evaporation section and the condensation section of the heat pipe and then is taken away through the liquid cooling plate, and the whole heat dissipation process does not need other energy supplies, so that the cooling method is an efficient and energy-saving cooling mode. The liquid cooling plate does not reduce the heat dissipation capacity of the bottom of the battery, and increases the heat dissipation of the wall surface of the main body of the battery, so that the total heat exchange effect is improved compared with the traditional cooling structure, the structure can effectively reduce the temperature of the wall surface of the battery, improve the charge and discharge performance of the battery, and reduce the influence of the reduction of the electric capacity of the battery caused by the temperature rise. Simultaneously, this structure is compared in traditional radiating mode, and the condensation segment of heat pipe has not avoided the risk that the coolant liquid was revealed in the embedding liquid cooling board.
Drawings
The following further explains embodiments of the present invention with reference to the drawings.
FIG. 1 is a schematic diagram of a novel battery cooling structure based on the coupling of a heat pipe and a liquid cooling plate according to the present invention;
FIG. 2 is an overall front view of the novel battery cooling structure based on the coupling of heat pipes and liquid cooling plates according to the present invention;
FIG. 3 is a comparison graph of experimental tests of the maximum temperature of the wall surface of a unit cell in three charge-discharge cycles in air cooling, liquid cooling and the cooling method of example 1;
FIG. 4 is a comparative graph of experimental tests of temperature difference of wall surface of unit cell in three charging and discharging cycles in air cooling, liquid cooling and cooling manner in example 1.
Detailed Description
In the description of the present embodiment, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present embodiment and simplifying the description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
This embodiment discloses a novel battery cooling structure based on heat pipe and liquid cooling plate coupling mainly includes: the liquid cooling device comprises a battery 7, a liquid cooling plate 5 and an L-shaped heat pipe 2, wherein the battery 7 is a single battery, is integrally in a cuboid structure and is vertically arranged; the liquid cooling plate 5 is an aluminum alloy part, is of a plate-shaped structure, is arranged below the battery 7, and is welded and fixed on a bottom plate of the battery device; the L-shaped heat pipe 2 is a copper component and comprises a vertical evaporation section 4 and a horizontal condensation section 3, wherein the evaporation section 4 is attached to the wall surface of the battery 7, and the condensation section 3 is attached to the liquid cooling plate 5.
Preferably, the upper copper plate 1 is arranged between the wall surface of the battery 7 and the evaporation section 4, the lower copper plate 6 is arranged between the liquid cooling plate 5 and the condensation section 3, and straight line sections of the upper copper plate 1 and the lower copper plate 6 are perpendicular to each other.
And heat-conducting silicone grease is uniformly filled between the upper copper plate 1 and the wall surface of the battery 7 and between the lower copper plate 6 and the liquid cooling plate 5, so that the heat dissipation effect is more uniform and efficient. Go up the top of copper 1 and link to each other with battery 7 wall top, go up the bottom of copper 1 and the bottom of battery 7 wall and set up the headspace, this headspace sets up highly to 4 +/-1 mm, preferred setting up to 4mm, and specific highly is according to the nimble setting of specification of battery 7, liquid cooling plate 5 and battery assembly. The lower copper plate 6 has one end connected to the bottom of the wall of the battery 7 and the other end connected to the edge of the liquid-cooled plate 5.
The upper edge of the upper copper plate 1 is connected with the end part of the evaporation section 4 of the L-shaped heat pipe 2, and the outer edge of the lower copper plate 6 is connected with the end part of the condensation section 3 in a sealing and welding mode, and the integrated structure is formed. The integrated structure is symmetrically arranged about the battery 7, namely the battery 7 is positioned at the center of the liquid cooling plate 5, and the integrated structure is symmetrically arranged at two sides of the battery 7 respectively.
Preferably, in this embodiment, the L-shaped heat pipe 2 includes a copper casing, a wick and a heat transfer medium, both the wick and the heat transfer medium are disposed in the copper casing, and in this embodiment, the heat transfer medium is a liquid-phase working medium, which may be water. The L-shaped heat pipe 2 is a copper water sintered heat pipe, the size range of the L-shaped heat pipe is that the diameter of the initial heat pipe is 6 +/-1 mm, the L-shaped heat pipe is pressed into a flat pipe body with the width of 8 +/-1 mm and the thickness of 3 +/-1 mm, and the L-shaped heat pipe is further bent to be in an L shape. Preferably, the initial heat pipes 2 are each set to have a diameter of 6mm, and then pressed into a flat pipe body having a width of 8mm and a thickness of 3 mm. Two sides of the battery 7 are respectively provided with 4L-shaped heat pipes 2. The evaporation section 4 and the condensation section 3 of the L-shaped heat pipe 2 are smoothly transited.
Lithium ion power battery can produce a large amount of heats at its wall and bottom when normal work, because the existence of liquid cooling board 5, the heat transfer effect of battery 7 bottom is better usually, and battery main body wall leads to its surface temperature's uniformity to worsen owing to there is not comparatively ideal cooling measure, and battery 7's overall heat transfer effect reduces. In the embodiment, the heat of the wall surface of the battery main body is uniformly transferred to the evaporation section 4 of the L-shaped heat pipe 2 through the upper copper plate 1, and the working medium of the evaporation section 4 evaporates and absorbs the heat under the driving of the temperature difference and flows downwards at the same time. Condensation segment 3 and lower copper 6 zonulae occludens, and the temperature is lower relatively, and the working medium that flows downwards contracts into the imbibition core again after meeting cold liquefaction release heat and flows upwards, and the heat that releases passes to liquid cooling board 5 via lower copper 6 again, is taken away by the working medium in the liquid cooling board 5, makes battery 7's cooling effect obtain improving, has improved the homogeneity of battery 7 temperature to make battery 7's performance obtain improving.
Fig. 3 and 4 show experimental studies on the heat dissipation performance of the battery 7 under the charge-discharge cycle conditions in which the battery is continuously operated under severe conditions. The severe condition is that the ambient temperature and the coolant are both maintained at 35 ℃ and the coolant is used at a low flow rate of 0.5L/min. In the experimental process, the battery 7 is discharged at a rate of 2C, is placed for 1 minute and then is charged at a rate of 1C, is placed for 1 minute after the charging is finished and then is discharged at a rate of 2C, and then is discharged for 3 times. The experiment also contrasts and refers to the cooling performance of two cooling modes of air cooling and liquid cooling.
Referring to fig. 3, when air cooling is applied to the battery 7, the temperature of the battery 7 is higher than 40 ℃ and can reach 46.2 ℃ at most at all times except for the first discharge and charge cycle, which is far beyond the optimal operating temperature range of the battery 7 (NC curve in the figure). When the battery 7 is cooled by the liquid cooling method, the wall temperature of the battery 7 is reduced as a whole compared with that of the air cooling unit, but the temperature exceeds the upper limit of the optimal operation temperature range (LC curve in the figure) of the battery 7 at 40 ℃ in the later discharge period and the early charge period. Therefore, the cooling requirements of the battery 7 under severe conditions cannot be met by the two cooling modes of air cooling and liquid cooling. When the heat pipe and liquid cooling plate coupling structure of the embodiment is adopted to cool the battery, the wall surface temperature is only 38.6 ℃ at most, the battery temperature is effectively controlled and is always in the optimal operation temperature range (LC-HP curve in the figure).
Referring to fig. 4, the temperature difference fluctuation of the wall surface of the battery 7 is shown under different cooling modes in the circulation process. The temperature difference is the highest under the liquid cooling condition, and can reach 3 ℃ at most, which is mainly because the liquid cooling only cools the bottom of the battery 7, but the wall surface of the battery 7 is not effectively cooled. When air cooling is adopted, the uniformity of the temperature of the battery 7 is better, and the reason is that the cooling effect of the air cooling is poorer, and the overall temperature of the battery 7 is higher and the temperature difference is smaller. The novel heat pipe and liquid cooling plate coupling structure has the best cooling effect, the wall surface temperature of the battery 7 is more uniform compared with air cooling and liquid cooling, and the maximum temperature difference is only 1 ℃. This is related to the good heat dispersion of heat pipe 2/liquid cooling board 5 structure, on the basis that the liquid cooling carries out effective cooling to battery 7 bottom, utilizes copper, heat pipe etc. to increase the heat dissipation of battery 7 wall for battery 7 wall difference in temperature further reduces, therefore total cooling effect has obtained certain promotion compared with traditional cooling mode.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms than described herein, and therefore the invention is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a novel battery cooling structure based on heat pipe and liquid cooling plate coupling which characterized in that: including battery, liquid cooling board and L type heat pipe, the liquid cooling board sets up the bottom at the battery, L type heat pipe includes vertical evaporation zone and horizontally condensation segment, and battery main body wall heat is absorbed to the evaporation zone, and the condensation segment shifts the heat to the liquid cooling board that the evaporation zone absorbs.
2. The novel battery cooling structure based on the coupling of the heat pipe and the liquid cooling plate as claimed in claim 1, wherein: an upper copper plate is arranged between the evaporation section of the L-shaped heat pipe and the wall surface of the battery, the upper copper plate is vertically arranged and clings to the evaporation section of the L-shaped heat pipe, and the end part of the evaporation section of the L-shaped heat pipe is in sealed welding connection with the edge of the upper copper plate.
3. The novel battery cooling structure based on the coupling of the heat pipe and the liquid cooling plate as claimed in claim 2, wherein: and heat-conducting silicone grease is filled between the upper copper plate and the wall surface of the battery.
4. The novel battery cooling structure based on the coupling of the heat pipe and the liquid cooling plate as claimed in claim 1, wherein: and a lower copper plate is arranged between the condensation section of the L-shaped heat pipe and the liquid cooling plate, the lower copper plate is horizontally arranged and clings to the condensation section of the L-shaped heat pipe, and the end part of the condensation section of the L-shaped heat pipe is connected with the edge of the lower copper plate in a sealing and welding manner.
5. The novel battery cooling structure based on the coupling of the heat pipe and the liquid cooling plate as claimed in claim 4, wherein: and heat-conducting silicone grease is filled between the lower copper plate and the liquid cooling plate.
6. The novel battery cooling structure based on the coupling of the heat pipe and the liquid cooling plate as claimed in claim 1, wherein: a reserved space is arranged between the bottom of the upper copper plate and the bottom of the battery, and the height of the reserved space is 4 +/-1 mm.
7. The novel battery cooling structure based on the coupling of the heat pipe and the liquid cooling plate as claimed in claim 1, wherein: the L-shaped heat pipe comprises a copper shell, a liquid absorption core and a heat transfer medium, wherein the liquid absorption core and the heat transfer medium are both arranged in the copper shell, and the liquid absorption core absorbs the heat transfer medium from a condensation section to an evaporation section.
8. The novel battery cooling structure based on the coupling of the heat pipe and the liquid cooling plate as claimed in claim 7, wherein: the L-shaped heat pipe is a copper water sintered heat pipe, the diameter of the initial heat pipe is 6 +/-1 mm, the initial heat pipe is pressed into a flat pipe body with the width of 8 +/-1 mm and the thickness of 3 +/-1 mm, and the heat pipe is further bent to be L-shaped.
CN202010781358.8A 2020-08-06 2020-08-06 Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate Active CN112582703B (en)

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Publication number Priority date Publication date Assignee Title
CN113793998A (en) * 2021-08-04 2021-12-14 岚图汽车科技有限公司 Battery heat dissipation system and battery heat dissipation method
WO2023201789A1 (en) * 2022-04-19 2023-10-26 广东工业大学 Battery thermal management method and device

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