WO2021138875A1 - Heat dissipation device and battery heat dissipation system - Google Patents

Heat dissipation device and battery heat dissipation system Download PDF

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Publication number
WO2021138875A1
WO2021138875A1 PCT/CN2020/071211 CN2020071211W WO2021138875A1 WO 2021138875 A1 WO2021138875 A1 WO 2021138875A1 CN 2020071211 W CN2020071211 W CN 2020071211W WO 2021138875 A1 WO2021138875 A1 WO 2021138875A1
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WO
WIPO (PCT)
Prior art keywords
cooling water
water pipe
heat dissipation
battery
battery pack
Prior art date
Application number
PCT/CN2020/071211
Other languages
French (fr)
Chinese (zh)
Inventor
萧仁荣
Original Assignee
鸿富锦精密工业(武汉)有限公司
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Application filed by 鸿富锦精密工业(武汉)有限公司 filed Critical 鸿富锦精密工业(武汉)有限公司
Priority to PCT/CN2020/071211 priority Critical patent/WO2021138875A1/en
Priority to CN202080002700.8A priority patent/CN113261146A/en
Publication of WO2021138875A1 publication Critical patent/WO2021138875A1/en

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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
    • 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
    • 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
    • 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
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H01M10/6565—Gases with forced flow, e.g. by blowers with recirculation or U-turn in the flow path, i.e. back and forth
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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

Definitions

  • the invention relates to a heat dissipation device and a battery heat dissipation system.
  • the battery will generate a lot of heat during the charging and discharging process, which will cause the internal temperature of the battery to rise and the temperature unevenness between the single cells. If the heat in the battery pack cannot be discharged in time, it will cause poor battery performance. Stability will even affect the safety and life of the battery.
  • An embodiment of the present application provides a heat dissipation device for dissipating heat from a battery pack, and the heat dissipation device includes:
  • the thermally conductive sheet is tightly attached between the surface of the battery pack and the first cooling water pipe, and is used to conduct the heat of the battery pack to the first cooling water pipe;
  • the first cooling water pipe is arranged around the battery pack, and the second cooling water pipe is arranged around the first cooling water pipe;
  • the flow direction of the cooling water in the first cooling water pipe is opposite to the flow direction of the cooling water in the second cooling water pipe.
  • the heat dissipation device further includes a water pump connected to the first cooling water pipe and the second cooling water pipe, and the water pump is used to pump cooling water to the first cooling water pipe and the second cooling water pipe. Water pipe.
  • the heat dissipation device further includes a fan, and the fan is used to dissipate heat from the battery pack.
  • An embodiment of the present application further provides a battery heat dissipation system, including a battery pack and the heat dissipation device, and the heat dissipation device is used to dissipate heat for the battery pack.
  • the battery pack includes a plurality of batteries, the plurality of batteries are arranged in a staggered arrangement, and the heat conducting sheet is attached to the surface of the battery to conduct heat of the plurality of batteries to all the batteries.
  • the first cooling water pipe is attached to the surface of the battery to conduct heat of the plurality of batteries to all the batteries.
  • the battery heat dissipation system further includes a temperature sensing unit for sensing the temperature of the battery pack.
  • the battery heat dissipation system further includes a control unit that is electrically connected to the temperature sensing unit, the water pump, and the fan, and the control unit is used to obtain the temperature sensed by the temperature sensing unit, And according to the temperature of the battery pack, the speed at which the water pump pumps out cooling water and the speed of the fan are controlled.
  • a control unit that is electrically connected to the temperature sensing unit, the water pump, and the fan, and the control unit is used to obtain the temperature sensed by the temperature sensing unit, And according to the temperature of the battery pack, the speed at which the water pump pumps out cooling water and the speed of the fan are controlled.
  • the control unit outputs a first control signal to the water pump to increase the cooling water in the first cooling water pipe and the second cooling water pipe.
  • the flow rate is a preset value
  • the control unit outputs a second control signal to the fan to increase the rotation speed of the fan.
  • control unit is further configured to receive the temperature of the battery pack transmitted by the temperature sensing unit every preset time.
  • Fig. 1 is a block diagram of a battery heat dissipation system according to an embodiment of the present application.
  • Fig. 2 is a block diagram of the heat sink shown in Fig. 1.
  • Fig. 3 is a schematic diagram of the battery arrangement and cooling water pipe heat dissipation shown in Fig. 1.
  • the second cooling water pipe 33 The second cooling water pipe 33
  • an element when referred to as being “electrically connected” to another element, it can be directly on the other element or a central element may also be present.
  • an element when it is considered to be “electrically connected” to another element, it can be a contact connection, for example, a wire connection or a non-contact connection, for example, a non-contact coupling.
  • the battery heat dissipation system 100 includes a battery pack 10, a temperature sensing unit 20, a heat dissipation device 30, and a control unit 40.
  • the temperature sensing unit 20 is used to sense the temperature of the battery pack 10.
  • the heat dissipating device 30 is used for dissipating heat of the battery pack 10.
  • the control unit 40 is electrically connected to the temperature sensing unit 20 and the heat dissipating device 30, and the control unit 40 is configured to receive the temperature sensed by the temperature sensing unit 20, and correspondingly control the heat dissipating device 30 to The battery pack 10 performs heat dissipation.
  • the battery pack 10 includes a plurality of batteries 11, and in this embodiment, the plurality of batteries 11 are arranged in a staggered manner. Specifically, each battery 11 is closely arranged, and every two adjacent batteries 11 are staggered end to end.
  • the temperature sensing unit 20 is arranged on the surface of the battery 11, the temperature sensing unit 20 is used to sense the temperature of the surface of the battery 11, and the temperature sensing unit 20 is also used to measure the sensed temperature Transmitted to the control unit 40.
  • the heat dissipation device 30 may include a heat conducting sheet 31, a first cooling water pipe 32, a second cooling water pipe 33, a water pump 34 and a fan 35.
  • the thermal conductive sheet 31 is attached to each battery 11, and the thermal conductive sheet 31 is used to transfer the heat generated by each battery 11 to the first cooling water pipe 32 and the second cooling water pipe 33.
  • the first cooling water pipe 32 and the second cooling water pipe 33 are arranged around the battery pack 10, and cooling water flows in the first cooling water pipe 32 and the second cooling water pipe 33.
  • the first cooling water pipe 32 is also in contact with the surface of the thermal conductive sheet 31 for receiving the heat generated by the battery pack 10 transferred by the thermal conductive sheet 31.
  • the first cooling water pipe 32 and the second cooling water pipe 33 take away the heat transferred by the heat conducting sheet 31 through the flow of cooling water, so as to realize the heat dissipation of the battery 11.
  • the water flow directions in the first cooling water pipe 32 and the second cooling water pipe 33 are opposite.
  • the first cooling water pipe 32 is arranged around the battery 11 in the battery pack 10.
  • the second cooling water pipe 33 is arranged around the first cooling water pipe 32.
  • the direction in which the cooling water flows in the first cooling water pipe 32 may be a first direction
  • the direction in which the cooling water flows in the second cooling water pipe 33 may be a second direction, where the first direction and The second direction is opposite.
  • the flow directions of the cooling water in the first cooling water pipe 32 and the second cooling water pipe 33 are different.
  • the cooling water in the first cooling water pipe 32 flows counterclockwise around the battery 11 and takes away the heat generated by the battery 11 when flowing. Therefore, as the cooling water is getting farther and farther away from the water inlet and getting closer and closer to the water outlet, because of the heat generated by the battery 11, the closer the cooling water in the first cooling water pipe 32 is to the water outlet, the higher the temperature of the cooling water is. high.
  • the second cooling water pipe 33 is arranged around the first cooling water pipe 32, and the flow direction of the cooling water in the second cooling water pipe 33 is clockwise, so the cooling water inlet in the second cooling water pipe 33 It is just close to the water outlet of the first cooling water pipe 32, and the water outlet of the cooling water in the second cooling water pipe 33 is just close to the water inlet of the first cooling water pipe 32.
  • the cooling water in the first cooling water pipe 32 is balanced with the cooling water in the second cooling water pipe 33 so as to achieve a uniform temperature up and down.
  • the temperature of the cooling water is the same in each place, so that the first cooling water pipe 32
  • the second cooling water pipe 33 has a better heat dissipation effect on the battery pack 10.
  • the water pump 34 is connected to the first cooling water pipe 32 and the second cooling water pipe 33, and the water pump 34 is used to pump cooling water to the first cooling water pipe 32 and the second cooling water pipe 33 to The driving causes the cooling water in the first cooling water pipe 32 and the second cooling water pipe 33 to flow.
  • the fan 35 is used to dissipate heat from the battery pack 10. Specifically, the fan 35 blows the generated wind to the thermal conductive sheet 31 attached to the surface of the battery 11, which can accelerate the air flow around the thermal conductive sheet 31, thereby accelerating the heat dissipation of the battery 11.
  • the control unit 40 is electrically connected to the temperature sensing unit 20, the water pump 34, and the fan 35, and is configured to receive the temperature transmitted by the temperature sensing unit 20 at predetermined intervals.
  • the control unit 40 receives Determine whether the temperature of the battery pack 10 is greater than or equal to a preset value. If the temperature of the battery pack 10 is greater than or equal to the preset value, the control unit 40 outputs a first control signal to the water pump 34 to increase the speed at which the water pump 34 pumps out cooling water, thereby enhancing the The heat dissipation effect of the cooling water in the first cooling water pipe 32 and the second cooling water pipe 33 on the battery 11.
  • the control unit 40 also outputs a second control signal to the fan 35 to control and increase the speed of the fan 35 so as to improve the heat dissipation effect of the battery pack 10.
  • the preset time may be 2s.
  • the battery pack 10 when the battery pack 10 is charged and discharged, the battery pack 10 generates a large amount of heat, which passes through the first cooling water pipe 32 and the second cooling water pipe 33 arranged around the battery 11 The cooling water flows up and down to take away the heat generated by the battery pack 10.
  • the temperature sensing unit 20 detects the temperature of the battery pack 10 and feeds it back to the control unit 40.
  • the control unit 40 determines whether the temperature of the battery pack 10 is greater than or equal to a preset value according to the received temperature value.
  • the control unit 40 When it is determined that the temperature of the battery pack 10 is greater than or equal to the preset value, the control unit 40 outputs a first control signal to the water pump 34 to control the speed of pumping out the cooling water from the water pump 34 to the first cooling water pipe 32 and the speed in the second cooling water pipe 33.
  • the control unit 40 also outputs a second control signal to the fan 35 to control and increase the speed of the fan 35 to further achieve the effect of rapid cooling.
  • the batteries 11 are arranged in a staggered arrangement, so that each battery 11 is stepped, which can increase the contact area of the first cooling water pipe 32 and the second cooling water pipe 33 to the battery 11, thereby It is more conducive to the heat dissipation of the battery 11.
  • the batteries 11 are arranged in a staggered arrangement, so that each battery 11 is stepped. Since the temperature of the cooling water closer to the battery 11 is higher, the arrangement of the batteries 11 can cause the cooling water to vibrate when flowing between the two batteries 11, so that the first cooling water pipe The cooling water close to the battery 11 and the cooling water far away from the battery 11 in the 32 and the second cooling water pipe 33 are mixed with each other, which is more conducive to the heat dissipation of the battery 11.
  • the first cooling water pipe 32 and the second cooling water pipe 33 are arranged around the battery pack 10, and the battery pack 10 is dissipated by a fan 35. Achieve excellent heat dissipation effect, which can improve the service life and safety and stability of the battery.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Provided is a heat dissipation device for dissipating heat of a battery pack. The heat dissipation device comprises: a heat conduction sheet, a first cooling water pipe and a second cooling water pipe, wherein the heat conduction sheet is tightly attached between a surface of a battery pack and the first cooling water pipe and is used for conducting heat of the battery pack to the first cooling water pipe; the first cooling water pipe is arranged around the battery pack, and the second cooling water pipe is arranged around the first cooling water pipe; and the flow direction of cooling water in the first cooling water pipe is the opposite of the flow direction of cooling water in the second cooling water pipe. Further provided is a battery heat dissipation system comprising the heat dissipation device. In the present application, the first cooling water pipe and the second cooling water pipe are arranged around a battery pack, and the battery pack is subjected to heat dissipation by means of a fan, such that an excellent heat dissipation effect can be achieved, thereby making it possible to prolong the service life of a battery and improve the safety and stability thereof.

Description

散热装置及电池散热系统Cooling device and battery cooling system 技术领域Technical field
本发明涉及一种散热装置及电池散热系统。The invention relates to a heat dissipation device and a battery heat dissipation system.
背景技术Background technique
一般而言，电池在充放电过程中会产生大量的热量，并会导致电池内部温度升高及单体电池之间温度不均匀，若电池组内的热量不能及时排出，将会造成电池性能不稳定，甚至会影响到电池的使用安全和寿命。Generally speaking, the battery will generate a lot of heat during the charging and discharging process, which will cause the internal temperature of the battery to rise and the temperature unevenness between the single cells. If the heat in the battery pack cannot be discharged in time, it will cause poor battery performance. Stability will even affect the safety and life of the battery.
发明内容Summary of the invention
鉴于以上内容，有必要提供一种散热装置及电池散热系统，可以显著提升电池的散热效果，进而提高电池的使用寿命及安全稳定性。In view of the above, it is necessary to provide a heat dissipation device and a battery heat dissipation system, which can significantly improve the heat dissipation effect of the battery, thereby increasing the service life and safety and stability of the battery.
本申请一实施例提供一种散热装置，用于对电池组进行散热，所述散热装置包括：An embodiment of the present application provides a heat dissipation device for dissipating heat from a battery pack, and the heat dissipation device includes:
导热片、第一冷却水管及第二冷却水管；Thermal conductive sheet, first cooling water pipe and second cooling water pipe;
所述导热片紧密贴合于所述电池组的表面与所述第一冷却水管之间，用于将所述电池组的热量传导给所述第一冷却水管；以及The thermally conductive sheet is tightly attached between the surface of the battery pack and the first cooling water pipe, and is used to conduct the heat of the battery pack to the first cooling water pipe; and
所述第一冷却水管环绕于所述电池组设置，所述第二冷却水管环绕于所述第一冷却水管设置；The first cooling water pipe is arranged around the battery pack, and the second cooling water pipe is arranged around the first cooling water pipe;
所述第一冷却水管中冷却水的流动方向与所述第二冷却水管中冷却水的流动方向相反。The flow direction of the cooling water in the first cooling water pipe is opposite to the flow direction of the cooling water in the second cooling water pipe.
优选地，所述散热装置还包括水泵，所述水泵连接于所述第一冷却水管及所述第二冷却水管，所述水泵用于泵出冷却水给所述第一冷却水管及第二冷却水管。Preferably, the heat dissipation device further includes a water pump connected to the first cooling water pipe and the second cooling water pipe, and the water pump is used to pump cooling water to the first cooling water pipe and the second cooling water pipe. Water pipe.
优选地，所述散热装置还包括风扇，所述风扇用于对所述电池组进行散热。Preferably, the heat dissipation device further includes a fan, and the fan is used to dissipate heat from the battery pack.
本申请一实施例还提供一种电池散热系统，包括电池组及所述散热装置，所述散热装置用于对所述电池组进行散热。An embodiment of the present application further provides a battery heat dissipation system, including a battery pack and the heat dissipation device, and the heat dissipation device is used to dissipate heat for the battery pack.
优选地，所述电池组包括若干个电池，若干个所述电池之间呈交错排列，所述导热片贴设在所述电池的表面，以用于将若干个所述电池的热量传导给所述第一冷却水管。Preferably, the battery pack includes a plurality of batteries, the plurality of batteries are arranged in a staggered arrangement, and the heat conducting sheet is attached to the surface of the battery to conduct heat of the plurality of batteries to all the batteries. The first cooling water pipe.
优选地，所述电池散热系统还包括温度感测单元，所述温度感测单元用于感测所述电池组的温度。Preferably, the battery heat dissipation system further includes a temperature sensing unit for sensing the temperature of the battery pack.
优选地，所述电池散热系统还包括控制单元，所述控制单元与所述温度感测单元、水泵及风扇电连接，所述控制单元用于获取所述温度感测单元所感测到的温度，并根据所述电池组的温度控制所述水泵泵出冷却水的速度及所述风扇的转速。Preferably, the battery heat dissipation system further includes a control unit that is electrically connected to the temperature sensing unit, the water pump, and the fan, and the control unit is used to obtain the temperature sensed by the temperature sensing unit, And according to the temperature of the battery pack, the speed at which the water pump pumps out cooling water and the speed of the fan are controlled.
优选地，当所述电池组的温度大于或等于预设值时，所述控制单元输出第一控制信号给所述水泵，以提高所述第一冷却水管及所述第二冷水管中冷却水的流动速度。Preferably, when the temperature of the battery pack is greater than or equal to a preset value, the control unit outputs a first control signal to the water pump to increase the cooling water in the first cooling water pipe and the second cooling water pipe. The flow rate.
优选地，当所述电池组的温度大于或等于预设值时，所述控制单元输出第二控制信号给所述风扇，以提高所述风扇的转速。Preferably, when the temperature of the battery pack is greater than or equal to a preset value, the control unit outputs a second control signal to the fan to increase the rotation speed of the fan.
优选地，所述控制单元还用于每隔预设时间接收所述温度感测单元传输的所述电池组的温度。Preferably, the control unit is further configured to receive the temperature of the battery pack transmitted by the temperature sensing unit every preset time.
本申请实施方式提供的电池散热系统，通过将所述冷却水管环绕所述电池组设置，并通过风扇对所述电池组进行散热，可以达到优良的散热效果，进而可以提高电池的使用寿命及安全稳定性。In the battery heat dissipation system provided by the embodiment of the present application, by arranging the cooling water pipe around the battery pack, and dissipating heat from the battery pack through a fan, an excellent heat dissipation effect can be achieved, thereby increasing the service life and safety of the battery stability.
附图说明Description of the drawings
图1是根据本申请实施例的电池散热系统的方框图。Fig. 1 is a block diagram of a battery heat dissipation system according to an embodiment of the present application.
图2是图1所示散热装置的方框图。Fig. 2 is a block diagram of the heat sink shown in Fig. 1.
图3是图1所示的电池排列及冷却水管散热的示意图。Fig. 3 is a schematic diagram of the battery arrangement and cooling water pipe heat dissipation shown in Fig. 1.
主要元件符号说明Symbol description of main components
电池散热系统                       100 Battery cooling system 100
电池组                             10 Battery pack 10
电池                               11 Battery 11
温度感测单元                       20 Temperature sensing unit 20
散热装置                           30Heat sink 30
导热片                             31Thermally conductive sheet 31
第一冷却水管                       32The first cooling water pipe 32
第二冷却水管                       33The second cooling water pipe 33
水泵                               34 Water pump 34
风扇                               35 Fan 35
控制单元                           40 Control unit 40
如下具体实施方式将结合上述附图进一步说明本发明。The following specific embodiments will further illustrate the present invention in conjunction with the above drawings.
具体实施方式Detailed ways
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
需要说明的是，当一个元件被称为“电连接”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“电连接”另一个元件，它可以是接触连接，例如，可以是导线连接的方式，也可以是非接触式连接，例如，可以是非接触式耦合的方式。It should be noted that when an element is referred to as being "electrically connected" to another element, it can be directly on the other element or a central element may also be present. When an element is considered to be "electrically connected" to another element, it can be a contact connection, for example, a wire connection or a non-contact connection, for example, a non-contact coupling.
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.
请参考图1，本申请实施方式提供一种电池散热系统100，所述电池散热系统100包括电池组10、温度感测单元20、散热装置30及控制单元40。Please refer to FIG. 1, an embodiment of the present application provides a battery heat dissipation system 100. The battery heat dissipation system 100 includes a battery pack 10, a temperature sensing unit 20, a heat dissipation device 30, and a control unit 40.
在本实施方式中，所述温度感测单元20用于感测所述电池组10的温度。所述散热装置30用于对所述电池组10进行散热。所述控制单元40与所述温度感测单元20及散热装置30电连接，所述控制单元40用于接收所述温度感测单元20感测的温度，并对应控制所述散热装置30对所述电池组10进行散热。In this embodiment, the temperature sensing unit 20 is used to sense the temperature of the battery pack 10. The heat dissipating device 30 is used for dissipating heat of the battery pack 10. The control unit 40 is electrically connected to the temperature sensing unit 20 and the heat dissipating device 30, and the control unit 40 is configured to receive the temperature sensed by the temperature sensing unit 20, and correspondingly control the heat dissipating device 30 to The battery pack 10 performs heat dissipation.
请一并参考图2及图3。所述电池组10包括若干个电池11，本实施方式中，若干个所述电池11之间呈交错排列。具体而言，每一电池11之间紧密排列，且每一相邻的两个电池11之间首尾交错排列。Please refer to Figure 2 and Figure 3 together. The battery pack 10 includes a plurality of batteries 11, and in this embodiment, the plurality of batteries 11 are arranged in a staggered manner. Specifically, each battery 11 is closely arranged, and every two adjacent batteries 11 are staggered end to end.
所述温度感测单元20设置在所述电池11表面，所述温度感测单元20用于感测所述电池11表面的温度，所述温度感测单元20还用于将所感测到的温度传输给所述控制单元40。The temperature sensing unit 20 is arranged on the surface of the battery 11, the temperature sensing unit 20 is used to sense the temperature of the surface of the battery 11, and the temperature sensing unit 20 is also used to measure the sensed temperature Transmitted to the control unit 40.
本实施方式中，所述散热装置30可包括导热片31、第一冷却水管32、第二冷却水管33、水泵34及风扇35。In this embodiment, the heat dissipation device 30 may include a heat conducting sheet 31, a first cooling water pipe 32, a second cooling water pipe 33, a water pump 34 and a fan 35.
所述导热片31贴设在每个电池11上，所述导热片31用于将每个所述电池11产生的热量传递给所述第一冷却水管32及所述第二冷却水管33。The thermal conductive sheet 31 is attached to each battery 11, and the thermal conductive sheet 31 is used to transfer the heat generated by each battery 11 to the first cooling water pipe 32 and the second cooling water pipe 33.
所述第一冷却水管32及所述第二冷却水管33环绕所述电池组10设置，所述第一冷却水管32及第二冷却水管33内流动有冷却水。所述第一冷却水管32还与所述导热片31的表面接触，用于接收所述导热片31传递的所述电池组10的产生的热量。所述第一冷却水管32及所述第二冷却水管33通过冷却水的流动将所述导热片31传递的热量带走，从而实现对所述电池11的散热。The first cooling water pipe 32 and the second cooling water pipe 33 are arranged around the battery pack 10, and cooling water flows in the first cooling water pipe 32 and the second cooling water pipe 33. The first cooling water pipe 32 is also in contact with the surface of the thermal conductive sheet 31 for receiving the heat generated by the battery pack 10 transferred by the thermal conductive sheet 31. The first cooling water pipe 32 and the second cooling water pipe 33 take away the heat transferred by the heat conducting sheet 31 through the flow of cooling water, so as to realize the heat dissipation of the battery 11.
具体地，所述第一冷却水管32及所述第二冷却水管33中的水流方向相反。所述第一冷却水管32环绕于所述电池组10中的所述电池11设置。所述第二冷却水管33环绕于所述第一冷却水管32设置。本实施方式中，所述第一冷却水管32内冷却水流动的方向可以为第一方向，所述第二冷却水管33内冷却水流动的方向可以为第二方向，其中所述第一方向与第二方向相反。通过将所述第一冷却水管32及所述第二冷却水管33内冷却水设为相反的流向，可以达到上下均温的效果，由此提高对所述电池11的散热效果。Specifically, the water flow directions in the first cooling water pipe 32 and the second cooling water pipe 33 are opposite. The first cooling water pipe 32 is arranged around the battery 11 in the battery pack 10. The second cooling water pipe 33 is arranged around the first cooling water pipe 32. In this embodiment, the direction in which the cooling water flows in the first cooling water pipe 32 may be a first direction, and the direction in which the cooling water flows in the second cooling water pipe 33 may be a second direction, where the first direction and The second direction is opposite. By setting the cooling water in the first cooling water pipe 32 and the second cooling water pipe 33 in opposite flow directions, the effect of equalizing the temperature up and down can be achieved, thereby improving the heat dissipation effect of the battery 11.
可以理解，所述第一冷却水管32和所述第二冷却水管33中的冷却水的流向不同。具体地，所述第一冷却水管32中的冷却水逆时针环绕所述电池11流动，且在流动时带走所述电池11产生的热量。因此，随着冷却水越来越远离进水口，且越来越靠近出水口，因为所述电池11产生的热量，使得所述第一冷却水管32中的冷却水越靠近出水口，冷却水的温度越高。同时，所述第二冷却水管33环绕所述第一冷却水管32设置，所述第二冷却水管33中冷却水的流动方向为顺时针，因此所述第二冷却水管33中冷却水的进水口恰好靠近所述第一冷却水管32的出水口，所述第二冷却水管33中冷却水的出水口恰好靠近所述第一冷却水管32的进水口。所述第一冷却水管32中的冷却水与所述第二冷却水管33中的冷却水相均衡，从而达到上下均温，每一处冷却水的温度相同，使得所述第一冷却水管32及所述第二冷却水管33对所述电池组10的散热效果更佳。It can be understood that the flow directions of the cooling water in the first cooling water pipe 32 and the second cooling water pipe 33 are different. Specifically, the cooling water in the first cooling water pipe 32 flows counterclockwise around the battery 11 and takes away the heat generated by the battery 11 when flowing. Therefore, as the cooling water is getting farther and farther away from the water inlet and getting closer and closer to the water outlet, because of the heat generated by the battery 11, the closer the cooling water in the first cooling water pipe 32 is to the water outlet, the higher the temperature of the cooling water is. high. At the same time, the second cooling water pipe 33 is arranged around the first cooling water pipe 32, and the flow direction of the cooling water in the second cooling water pipe 33 is clockwise, so the cooling water inlet in the second cooling water pipe 33 It is just close to the water outlet of the first cooling water pipe 32, and the water outlet of the cooling water in the second cooling water pipe 33 is just close to the water inlet of the first cooling water pipe 32. The cooling water in the first cooling water pipe 32 is balanced with the cooling water in the second cooling water pipe 33 so as to achieve a uniform temperature up and down. The temperature of the cooling water is the same in each place, so that the first cooling water pipe 32 The second cooling water pipe 33 has a better heat dissipation effect on the battery pack 10.
所述水泵34连接于所述第一冷却水管32及所述第二冷却水管33，所述水泵34 用于泵出冷却水给所述第一冷却水管32及所述第二冷却水管33，以驱动使得所述第一冷却水管32及所述第二冷却水管33内的冷却水流动。The water pump 34 is connected to the first cooling water pipe 32 and the second cooling water pipe 33, and the water pump 34 is used to pump cooling water to the first cooling water pipe 32 and the second cooling water pipe 33 to The driving causes the cooling water in the first cooling water pipe 32 and the second cooling water pipe 33 to flow.
所述风扇35用于对所述电池组10进行散热。具体为，所述风扇35将产生的风吹向贴设在所述电池11表面的导热片31，可加快所述导热片31周围的空气流动，进而加快了对所述电池11的散热。The fan 35 is used to dissipate heat from the battery pack 10. Specifically, the fan 35 blows the generated wind to the thermal conductive sheet 31 attached to the surface of the battery 11, which can accelerate the air flow around the thermal conductive sheet 31, thereby accelerating the heat dissipation of the battery 11.
所述控制单元40与所述温度感测单元20、所述水泵34及风扇35电连接，用于每隔预设时间接收所述温度感测单元20传输的温度，所述控制单元40根据接收的温度判断所述电池组10的温度是否大于或等于预设值。若所述电池组10的温度大于或等于所述预设值，所述控制单元40输出第一控制信号给所述水泵34，以加快所述水泵34泵出冷却水的速度，从而增强所述第一冷却水管32及第二冷却水管33内冷却水对所述电池11的散热效果。此外，所述控制单元40还输出第二控制信号给所述风扇35，进而控制提高所述风扇35的转速，从而提高对所述电池组10的散热效果。本实施方式中，所述预设时间可为2s。The control unit 40 is electrically connected to the temperature sensing unit 20, the water pump 34, and the fan 35, and is configured to receive the temperature transmitted by the temperature sensing unit 20 at predetermined intervals. The control unit 40 receives Determine whether the temperature of the battery pack 10 is greater than or equal to a preset value. If the temperature of the battery pack 10 is greater than or equal to the preset value, the control unit 40 outputs a first control signal to the water pump 34 to increase the speed at which the water pump 34 pumps out cooling water, thereby enhancing the The heat dissipation effect of the cooling water in the first cooling water pipe 32 and the second cooling water pipe 33 on the battery 11. In addition, the control unit 40 also outputs a second control signal to the fan 35 to control and increase the speed of the fan 35 so as to improve the heat dissipation effect of the battery pack 10. In this embodiment, the preset time may be 2s.
在本实施例中，当所述电池组10充放电时，所述电池组10产生大量热量，通过环绕在所述电池11设置的所述第一冷却水管32及所述第二冷却水管33中冷却水的上下流动来带走所述电池组10产生的热量。所述温度感测单元20侦测所述电池组10的温度，并反馈给所述控制单元40，所述控制单元40根据接收到的温度判断所述电池组10的温度是否大于或等于预设值。当判断所述电池组10的温度大于或等于预设值时，所述控制单元40输出第一控制信号给所述水泵34，控制加快所述水泵34泵出冷却水到所述第一冷却水管32及第二冷却水管33中的速度。所述控制单元40还输出第二控制信号给所述风扇35，控制提高所述风扇35的转速，进一步达到快速降温的效果。In this embodiment, when the battery pack 10 is charged and discharged, the battery pack 10 generates a large amount of heat, which passes through the first cooling water pipe 32 and the second cooling water pipe 33 arranged around the battery 11 The cooling water flows up and down to take away the heat generated by the battery pack 10. The temperature sensing unit 20 detects the temperature of the battery pack 10 and feeds it back to the control unit 40. The control unit 40 determines whether the temperature of the battery pack 10 is greater than or equal to a preset value according to the received temperature value. When it is determined that the temperature of the battery pack 10 is greater than or equal to the preset value, the control unit 40 outputs a first control signal to the water pump 34 to control the speed of pumping out the cooling water from the water pump 34 to the first cooling water pipe 32 and the speed in the second cooling water pipe 33. The control unit 40 also outputs a second control signal to the fan 35 to control and increase the speed of the fan 35 to further achieve the effect of rapid cooling.
在本实施例中，所述电池11交错排列，使得每个电池11之间呈阶梯状，进而可以增加所述第一冷却水管32及第二冷却水管33对所述电池11的接触面积，从而更利于所述电池11的散热。In this embodiment, the batteries 11 are arranged in a staggered arrangement, so that each battery 11 is stepped, which can increase the contact area of the first cooling water pipe 32 and the second cooling water pipe 33 to the battery 11, thereby It is more conducive to the heat dissipation of the battery 11.
在本实施例中，所述电池11交错排列，使得每个电池11之间呈阶梯状。由于越靠近所述电池11的冷却水的温度越高，因此通过所述电池11的排列方式可以使得冷却水在流经两个电池11之间时，会产生震动，使得所述第一冷却水管32及第二冷却水管33中靠近所述电池11的冷却水与远离所述电池11的冷却水相互混匀，从而更利于所述电池11的散热。In this embodiment, the batteries 11 are arranged in a staggered arrangement, so that each battery 11 is stepped. Since the temperature of the cooling water closer to the battery 11 is higher, the arrangement of the batteries 11 can cause the cooling water to vibrate when flowing between the two batteries 11, so that the first cooling water pipe The cooling water close to the battery 11 and the cooling water far away from the battery 11 in the 32 and the second cooling water pipe 33 are mixed with each other, which is more conducive to the heat dissipation of the battery 11.
本申请实施方式提供的电池散热系统100，通过将所述第一冷却水管32及所述 第二冷却水管33环绕所述电池组10设置，并通过风扇35对所述电池组10进行散热，可以达到优良的散热效果，进而可以提高电池的使用寿命及安全稳定性。According to the battery heat dissipation system 100 provided by the embodiment of the present application, the first cooling water pipe 32 and the second cooling water pipe 33 are arranged around the battery pack 10, and the battery pack 10 is dissipated by a fan 35. Achieve excellent heat dissipation effect, which can improve the service life and safety and stability of the battery.
以上实施方式仅用以说明本发明的技术方案而非限制，尽管参照以上较佳实施方式对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或等同替换都不应脱离本发明技术方案的精神和范围。本领域技术人员还可在本发明精神内做其它变化等用在本发明的设计，只要其不偏离本发明的技术效果均可。这些依据本发明精神所做的变化，都应包含在本发明所要求保护的范围之内。The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. None should deviate from the spirit and scope of the technical solution of the present invention. Those skilled in the art can also make other changes within the spirit of the present invention and apply it to the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made in accordance with the spirit of the present invention should all be included in the scope of protection claimed by the present invention.

Claims (10)

  1. 一种散热装置，用于对电池组进行散热，其特征在于，所述散热装置包括：A heat dissipating device for dissipating heat of a battery pack, characterized in that the heat dissipating device includes:
    导热片、第一冷却水管及第二冷却水管；Thermal conductive sheet, first cooling water pipe and second cooling water pipe;
    所述导热片紧密贴合于所述电池组的表面与所述第一冷却水管之间，用于将所述电池组的热量传导给所述第一冷却水管；以及The thermally conductive sheet is tightly attached between the surface of the battery pack and the first cooling water pipe, and is used to conduct the heat of the battery pack to the first cooling water pipe; and
    所述第一冷却水管环绕于所述电池组设置，所述第二冷却水管环绕于所述第一冷却水管设置；The first cooling water pipe is arranged around the battery pack, and the second cooling water pipe is arranged around the first cooling water pipe;
    所述第一冷却水管中冷却水的流动方向与所述第二冷却水管中冷却水的流动方向相反。The flow direction of the cooling water in the first cooling water pipe is opposite to the flow direction of the cooling water in the second cooling water pipe.
  2. 如权利要求1所述的散热装置，其特征在于，所述散热装置还包括水泵，所述水泵连接于所述第一冷却水管及所述第二冷却水管，所述水泵用于泵出冷却水给所述第一冷却水管及所述第二冷却水管。The heat dissipation device according to claim 1, wherein the heat dissipation device further comprises a water pump connected to the first cooling water pipe and the second cooling water pipe, and the water pump is used to pump out cooling water To the first cooling water pipe and the second cooling water pipe.
  3. 如权利要求1所述的散热装置，其特征在于，所述散热装置还包括风扇，所述风扇用于对所述电池组进行散热。The heat dissipation device according to claim 1, wherein the heat dissipation device further comprises a fan, and the fan is used to dissipate heat from the battery pack.
  4. 一种电池散热系统，其特征在于，所述电池散热系统包括电池组及如权利要求1-3任意一项所述的散热装置，所述散热装置用于对所述电池组进行散热。A battery heat dissipation system, wherein the battery heat dissipation system comprises a battery pack and the heat dissipation device according to any one of claims 1 to 3, and the heat dissipation device is used to dissipate heat for the battery pack.
  5. 如权利要求4所述的电池散热系统，其特征在于，所述电池组包括若干个电池，若干个所述电池之间呈交错排列，所述导热片贴设在所述电池的表面，以用于将若干个所述电池的热量传导给所述第一冷却水管。The battery heat dissipation system of claim 4, wherein the battery pack includes a plurality of batteries, and the plurality of the batteries are arranged in a staggered manner, and the thermal conductive sheet is attached to the surface of the battery for use To conduct the heat of a plurality of the batteries to the first cooling water pipe.
  6. 如权利要求4所述的电池散热系统，其特征在于：所述电池散热系统还包括温度感测单元，所述温度感测单元用于感测所述电池组的温度。8. The battery heat dissipation system of claim 4, wherein the battery heat dissipation system further comprises a temperature sensing unit, and the temperature sensing unit is used to sense the temperature of the battery pack.
  7. 如权利要求6所述的电池散热系统，其特征在于：所述电池散热系统还包括控制单元，所述控制单元与所述温度感测单元、水泵及风扇电连接，所述控制单元用于获取所述温度感测单元所感测到的温度，并根据所述电池组的温度控制所述水泵泵出冷却水的速度及所述风扇的转速。The battery heat dissipation system according to claim 6, wherein the battery heat dissipation system further comprises a control unit, the control unit is electrically connected to the temperature sensing unit, the water pump, and the fan, and the control unit is used to obtain The temperature sensed by the temperature sensing unit controls the speed of the cooling water pumped out by the water pump and the rotation speed of the fan according to the temperature of the battery pack.
  8. 如权利要求7所述的电池散热系统，其特征在于：当所述电池组的温度大于或等于预设值时，所述控制单元输出第一控制信号给所述水泵，以提高所述第一冷却水管及所述第二冷水管中冷却水的流动速度。7. The battery heat dissipation system according to claim 7, wherein when the temperature of the battery pack is greater than or equal to a preset value, the control unit outputs a first control signal to the water pump to increase the first control signal. The flow velocity of the cooling water in the cooling water pipe and the second cold water pipe.
  9. 如权利要求7所述的电池散热系统，其特征在于：当所述电池组的温度大于或等于预设值时，所述控制单元输出第二控制信号给所述风扇，以提高所述风扇的 转速。7. The battery heat dissipation system of claim 7, wherein when the temperature of the battery pack is greater than or equal to a preset value, the control unit outputs a second control signal to the fan, so as to improve the fan's performance. Rotating speed.
  10. 如权利要求7所述的电池散热系统，其特征在于：所述控制单元还用于每隔预设时间接收所述温度感测单元传输的所述电池组的温度。8. The battery heat dissipation system according to claim 7, wherein the control unit is further configured to receive the temperature of the battery pack transmitted by the temperature sensing unit every preset time.
PCT/CN2020/071211 2020-01-09 2020-01-09 Heat dissipation device and battery heat dissipation system WO2021138875A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102237561A (en) * 2010-04-21 2011-11-09 Sb锂摩托有限公司 Battery pack and cooling system for a battery pack
CN206673062U (en) * 2017-04-25 2017-11-24 威马汽车技术有限公司 A kind of battery bag heat-exchange system of counter-flow arrangement
CN107464965A (en) * 2017-08-01 2017-12-12 浙江合众新能源汽车有限公司 A kind of cold cooling system of battery bag and battery bag liquid
CN108832222A (en) * 2018-05-07 2018-11-16 浙江零跑科技有限公司 A kind of integrated type battery packet cooling device
CN208298898U (en) * 2018-06-07 2018-12-28 华南理工大学 A kind of battery case smart battery pack heat management system with runner and heat pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102237561A (en) * 2010-04-21 2011-11-09 Sb锂摩托有限公司 Battery pack and cooling system for a battery pack
CN206673062U (en) * 2017-04-25 2017-11-24 威马汽车技术有限公司 A kind of battery bag heat-exchange system of counter-flow arrangement
CN107464965A (en) * 2017-08-01 2017-12-12 浙江合众新能源汽车有限公司 A kind of cold cooling system of battery bag and battery bag liquid
CN108832222A (en) * 2018-05-07 2018-11-16 浙江零跑科技有限公司 A kind of integrated type battery packet cooling device
CN208298898U (en) * 2018-06-07 2018-12-28 华南理工大学 A kind of battery case smart battery pack heat management system with runner and heat pipe

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