WO2023207798A1 - 热管理部件、电池及用电装置 - Google Patents

热管理部件、电池及用电装置 Download PDF

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Publication number
WO2023207798A1
WO2023207798A1 PCT/CN2023/089822 CN2023089822W WO2023207798A1 WO 2023207798 A1 WO2023207798 A1 WO 2023207798A1 CN 2023089822 W CN2023089822 W CN 2023089822W WO 2023207798 A1 WO2023207798 A1 WO 2023207798A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
thermal management
management component
battery
reinforcement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/089822
Other languages
English (en)
French (fr)
Inventor
郭海建
黄小腾
侯跃攀
宋飞亭
李兴星
周聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP23795231.2A priority Critical patent/EP4513629A4/en
Priority to KR1020247038982A priority patent/KR20250004325A/ko
Priority to JP2024562854A priority patent/JP2025514882A/ja
Publication of WO2023207798A1 publication Critical patent/WO2023207798A1/zh
Priority to US18/930,984 priority patent/US20250055069A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • 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
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • 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
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • 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
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • 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 present application relates to the field of battery technology, specifically, to a thermal management component, a battery and an electrical device.
  • the battery cells in the battery tend to expand in appearance over time, which can easily lead to a smaller contact area between the battery cells and the thermal management components in the battery, affecting the efficiency of heat conduction between the thermal management components and the battery cells. .
  • the present application provides a thermal management component, a battery and an electrical device, so that the thermal management component can be compressed and slightly deformed to reduce the effect of expansion of the battery cell on heat conduction with the thermal management component.
  • a thermal management component including: a first wall; a second wall spaced apart from the first wall, with an accommodation space between the first wall and the second wall. between; a support member, which is disposed in the accommodation space along an extension direction that is inclined to the first wall or the second wall.
  • the thermal management component includes a first wall and a second wall spaced apart from the first wall, and there is an accommodation space between the first wall and the second wall, and the accommodation space can be used to accommodate the heat exchange medium,
  • target parts such as batteries and battery modules come into contact, the temperature of the target parts is adjusted through heat transfer.
  • a support member is provided in the accommodating space, and the support member is provided along an extension direction that is inclined to the first wall or the second wall.
  • the support member of the present application has a small supporting force on the first wall and the second wall, so that when the thermal management component is subjected to the extrusion force along the stacking direction of the first wall and the second wall, the thermal management component is easier to Slight deformation occurs, which can meet the risk of compressive deformation when the battery pack is sealed and assembled, and can also reduce the risk of damage to thermal management components when they are subject to large concentrated stress.
  • the number of the supporting members is multiple, and the plurality of supporting members are spaced apart between the first wall and the second wall.
  • the plurality of supports can divide the accommodation space into a plurality of flow channels.
  • the heat exchange medium can be divided into multiple flow channels, so that when the thermal management component is in contact with the target component, the temperature of each part of the target component can be controlled more evenly.
  • the spacing of the support members can avoid the presence of thermal management components.
  • the local strength is high and not easy to compress, which can improve the reliability of the overall heat exchange function.
  • the first wall is used for heat conduction in contact with the target component; the angle between the support component and a direction perpendicular to the plane of the first wall is in the range of 35° to 55°.
  • the support force of the support member on the first wall and the second wall is relatively large, making it difficult for the thermal management component to be compressed.
  • the angle between the support member and the direction perpendicular to the plane of the first wall is greater than 55°, The support force of the support member on the first wall and the second wall is small, causing the thermal management component to be damaged when it is subjected to large concentrated stress, or due to the large amount of compressive deformation, it contacts the second wall to block the accommodation space.
  • the thermal management component can be easily compressed and slightly deformed, and the thermal management component can be reduced from being subjected to stress.
  • the risk of damage occurs when large concentrated stress occurs, or the large amount of compressive deformation causes it to contact the second wall to block the accommodation space.
  • a plurality of the supports are arranged in parallel.
  • the angles between the multiple support members and the plane vertical to the first wall are all the same, and the supporting force of each support member on the first wall and the second wall is the same, which can reduce the localization of the thermal management component. There is a risk of deformation due to greater force, and at the same time, it helps to improve the aesthetics of the product.
  • At least two of the supporting members respectively form different angles with the first wall.
  • the angles between at least two support members and the plane of the first wall can also be set to different angles, such as one support member and the plane of the first wall.
  • the angle between the planes is 35°
  • the angle between the adjacent support member and the plane of the first wall is 45°, which can also support the first wall and the second wall, and
  • the thermal management components can be slightly deformed, and the structure and principle are relatively simple and easy to implement.
  • the thermal management component includes a connection end located between the first wall and the second wall and connecting the first wall and the second wall, the thermal management component The management component further includes: at least one end reinforcement disposed between the first wall and the second wall and adjacent to the connecting end.
  • the end reinforcement serves to support the first connection
  • the function of the connecting end of the wall and the second connecting arm improves the local strength of the connecting end and prevents the connecting end from being damaged when it is subjected to large stress.
  • the number of end reinforcement members is two, and the two end support members are respectively used to support the two connecting ends of the first wall and the second wall.
  • a gap is provided between the end reinforcement and the connecting end.
  • the end reinforcement and the connection end are spaced apart so that the heat exchange medium can flow through the gap between the end reinforcement and the connection end, so that the connection end can also conduct heat conduction, thereby further improving the Thermal management components uniformity of heat conduction.
  • the thermal management component further includes: a first reinforcement member, the first reinforcement member is provided on a side surface of the first wall facing the second wall, and the first reinforcement member The member is spaced apart from the second wall.
  • the first reinforcing member by arranging the first reinforcing member on the side surface of the first wall facing the second wall, and by arranging the first reinforcing member at a distance from the second wall, the first reinforcing member can not only improve the The stiffness of one wall can also prevent direct contact between the first wall and the second wall when the thermal management component is extruded and deformed, thereby preventing the accommodation space from being blocked and preventing the heat exchange medium from flowing.
  • a second reinforcement member is further included, and the second reinforcement member is provided on a side surface of the second wall facing the first wall and is spaced apart from the first wall.
  • the second reinforcing member by arranging the second reinforcing member on the side surface of the second wall facing the first wall, and by arranging the second reinforcing member at a distance from the first wall, the second reinforcing member can not only enhance the The stiffness of the second wall can further prevent direct contact between the second wall and the first wall when the thermal management component is extruded and deformed, thereby further preventing the accommodation space from being blocked and preventing the heat exchange medium from flowing.
  • the second reinforcement member is offset from the first reinforcement member when projected along the stacking direction of the first wall and the second wall.
  • the first reinforcing member and the second reinforcing member are staggered along the stacking direction of the first wall and the second wall. Therefore, when the first wall and the second wall are pressed close to each other, It is possible to avoid the first reinforcing member and the second reinforcing member from abutting each other, thereby avoiding the situation that the thermal management component cannot be extruded and deformed due to the abutting of the first reinforcing member and the second reinforcing member.
  • the size of the first reinforcement and/or the second reinforcement is smaller than that of the end reinforcement along the stacking direction of the first wall and the second wall.
  • the size of the first reinforcement member along the stacking direction of the first wall and the second wall is smaller than that of the end reinforcement member, or the size of the second reinforcement member along the stacking direction of the first wall and the second wall is smaller than the size of the end reinforcement member.
  • the size of the end reinforcement, or the size of the first reinforcement and the second reinforcement along the stacking direction of the first wall and the second wall is smaller than that of the end reinforcement.
  • the end reinforcements play a role in supporting the first wall and the second wall, and the first reinforcements and the second reinforcements prevent the first wall and the second wall from being in direct contact due to extrusion deformation, then through The size of the first reinforcement and the second reinforcement along the stacking direction of the first wall and the second wall is smaller than the end reinforcement, thereby preventing the connection end of the first wall and the second wall from being damaged by greater stress. , and the first wall and the second wall will not be in direct contact when the thermal management component is extruded, thereby preventing the accommodation space from being blocked.
  • an embodiment of the present application provides a battery, including: a target component; and a thermal management component as described in any one of the embodiments of the first aspect, wherein the thermal management component communicates with the first wall through the first wall. Thermal contact between the above mentioned target parts.
  • the target component may be a component such as a battery pack. Since the battery provided by the embodiment of the second aspect includes the thermal management component described in any one of the embodiments of the first aspect, it has the technical effects of any of the above embodiments, which will not be described again here.
  • the battery further includes a current collecting component, the current collecting component is connected to the thermal management component, the current collecting component includes a current collecting channel, and the current collecting channel is connected to the thermal management component.
  • the accommodation spaces of the components are connected.
  • the heat exchange medium can enter the accommodation space through the current collection component to achieve temperature adjustment of the target part, and the heat exchange medium in the accommodation space can flow back into the current collection component after heat exchange. to achieve cyclic heat conduction.
  • an embodiment of the present application provides an electrical device, including the battery described in the embodiment of the second aspect, where the battery is used to power the electrical device.
  • Figure 1 is a schematic structural diagram of a vehicle according to some embodiments of the present application.
  • Figure 2 is a schematic diagram of the exploded structure of a battery according to some embodiments of the present application.
  • Figure 3 is a partial structural diagram of a battery provided by some embodiments of the present application.
  • Figure 4 is a schematic cross-sectional structural diagram of a thermal management component provided by some embodiments of the present application.
  • FIG. 5 is a schematic cross-sectional structural diagram of another thermal management component provided by some embodiments of the present application.
  • Marking description vehicle 1000; battery 100, controller 200, motor 300; box 10, first part 11, second part 12; battery cell 20, thermal management component 30, target component 40; No.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • multiple refers to more than two (including two).
  • multiple groups refers to two or more groups (including two groups), and “multiple pieces” refers to It is more than two pieces (including two pieces).
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in many fields such as military equipment and aerospace. . As the application fields of power batteries continue to expand, their market demand is also constantly expanding.
  • Power batteries will show different electrical cycle performance under different ambient temperatures. When the ambient temperature is too high or too low, the cycle performance of the power battery will be reduced, and even its service life will be shortened. In order for new energy vehicles to operate safely, with stable performance and excellent performance, the battery module must be effectively thermally managed and controlled to always operate within a suitable temperature range.
  • the inventor has designed a thermal management component after in-depth research.
  • a support member is provided between the first wall and the second wall of the thermal management component, and the support member is inclined along the first wall and the second wall.
  • the extending direction of the wall is arranged in the accommodation space, so that the supporting force of the support member on the first wall and the second wall can be appropriately weakened, so that the thermal management component can be correspondingly removed when the shape of the battery cell or battery module expands. It is compressed and can deform slightly, which can reduce the reduction of the heat exchange area between the two.
  • the thermal management components and batteries provided by the embodiments of the present application can be used in a variety of different electrical devices to solve the above problems.
  • the electrical devices can be but are not limited to mobile phones, tablets, laptops, electric toys, power tools, and battery cars. , electric vehicles, ships, spacecraft, etc.
  • electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, electric airplane toys, etc.
  • spacecraft can include airplanes, rockets, space shuttles, spaceships, etc.
  • an electric device 1000 according to an embodiment of the present application is used as an example.
  • FIG. 1 is a schematic structural diagram of a vehicle 1000 provided by some embodiments of the present application.
  • the vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • the battery 100 is disposed inside the vehicle 1000 , and the battery 100 may be disposed at the bottom, head, or tail of the vehicle 1000 .
  • the battery 100 may be used to power the vehicle 1000 , for example, the battery 100 may serve as an operating power source for the vehicle 1000 .
  • the vehicle 1000 may also include a controller 200 and a motor 300 .
  • the controller 200 is used to control the battery 100 to provide power to the motor 300 , for example, for starting, navigating and driving the vehicle 1000 .
  • the battery 100 can not only be used as an operating power source for the vehicle 1000 , but also can be used as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .
  • FIG. 2 is a schematic diagram of an exploded structure of the battery 100 provided by some embodiments of the present application.
  • the battery 100 includes a case 10 and battery cells 20 , and the battery cells 20 are accommodated in the case 10 .
  • the box 10 is used to provide a storage space for the battery cells 20, and the box 10 can adopt a variety of structures.
  • the box 10 may include a first part 11 and a second part 12 , the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a space for accommodating the battery cells 20 of accommodation space.
  • the second part 12 may be a hollow structure with one end open, and the first part 11 may be a plate-like structure.
  • the first part 11 covers the open side of the second part 12 so that the first part 11 and the second part 12 jointly define a receiving space.
  • the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 is covered with the open side of the second part 12.
  • the box 10 formed by the first part 11 and the second part 12 can be in various shapes, such as cylinder, rectangular parallelepiped, etc.
  • the battery 100 there may be a plurality of battery cells 20, and the plurality of battery cells 20 may be connected in series, in parallel, or in mixed connection.
  • Mixed connection means that the plurality of battery cells 20 are connected in series and in parallel.
  • the plurality of battery cells 20 can be directly connected in series or in parallel or mixed together, and then the whole composed of the plurality of battery cells 20 can be accommodated in the box 10 ; of course, the battery 100 can also be a plurality of battery cells 20 First, the battery modules are connected in series, parallel, or mixed to form a battery module, and then multiple battery modules are connected in series, parallel, or mixed to form a whole, and are accommodated in the box 10 .
  • the battery 100 may also include electrical connectors for electrical connection between the plurality of battery cells 20 .
  • the battery cell 20 refers to the smallest unit that constitutes the battery 100 . As shown in FIG. 3 , the battery cells 20 include electrical connectors, and the electrical connectors are used to electrically connect two adjacent battery cells 20 .
  • Each battery cell 20 may be a secondary battery cell or a primary battery cell; it may also be a lithium-sulfur battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, but is not limited thereto.
  • the battery cell 20 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes.
  • the battery 20 provided by the embodiment of the present application includes a target component and a thermal management component 30.
  • the first wall of the thermal management component 30 is used to contact the target component and perform heat exchange with the target component.
  • the target part can be a battery cell or a battery module and other components.
  • the battery 20 further includes a current collecting component connected to the thermal management component 30.
  • the current collecting component includes a current collecting channel, and the current collecting channel is connected to the thermal management component 30.
  • Accommodation space 303 connected.
  • Figure 4 is a schematic cross-sectional structural diagram of a thermal management component 30 provided in some embodiments of the present application.
  • the thermal management component 30 provided in some embodiments of the present application includes: a first wall; a second wall, which is spaced apart from the first wall, with an accommodation space 303 between the first wall and the second wall; and a support.
  • the support member 304 is disposed in the accommodation space 303 along an extension direction that is inclined to the first wall or the second wall.
  • the first wall and the second wall are thermal conductive parts used for heat exchange with the target part.
  • the accommodating space 303 is connected to both ends of the thermal management component 30 and is used for circulating heat exchange media such as water, so that when at least one of the first wall and the second wall is in contact with a target component such as the battery 20 module, the The temperature of the target part is adjusted by means of heat transfer.
  • the support member 304 may be a support plate or a support rib.
  • the specific shape of the supporting member 304 is not limited.
  • the cross-sectional shape of the supporting member 304 is straight or bent.
  • the support member 304 By disposing at least one support member 304 in the accommodation space 303, and the at least one support member 304 being disposed along an extension direction that is inclined to the first wall or the second wall, the support member 304 is perpendicular to the first wall or the second wall. Regarding the arrangement of the first wall or the second wall along the extending direction, the supporting force of the support member 304 of the present application on the first wall and the second wall is small, so that the thermal management component 30 is affected by the force along the first wall and the second wall.
  • the thermal management component 30 When the two walls are pressed in the stacking direction, the thermal management component 30 is more likely to be slightly deformed, thereby meeting the risk of compressible deformation of the battery 20 package when it is sealed and assembled, and at the same time, it can also reduce the risk of the thermal management component 30 being subjected to stress. Risk of damage due to large concentrated stresses.
  • the number of support members 304 is multiple, and the multiple support members 304 are spaced apart between the first wall and the second wall.
  • the multiple support members 304 can divide the accommodation space 303 into multiple flow channels.
  • the heat exchange medium enters the accommodation space 303, the heat exchange medium can be divided into multiple flow channels, so that when the thermal management component 30 is in contact with the target piece, the temperature of each part of the target piece can be controlled relatively uniformly.
  • the first wall is used to conduct heat in contact with the target piece; the angle between the support member 304 and the direction perpendicular to the plane of the first wall is in the range of 35° to 55°.
  • the support member 304 When the angle between the support member 304 and the direction perpendicular to the plane of the first wall is less than 35°, the support member 304 has a greater supporting force on the first wall and the second wall, causing the thermal management component 30 to be difficult to be compressed.
  • the angle between the member 304 and the direction perpendicular to the plane of the first wall is greater than 55°, the supporting force of the support member 304 on the first wall and the second wall is small, resulting in damage to the thermal management component 30 when it is subjected to large concentrated stress. Or due to the large amount of compression deformation, it contacts the second wall to block the accommodation space 303. Therefore, the angle between the support member 304 and the direction perpendicular to the plane of the first wall is set between 35° and 55°.
  • the thermal management component 30 can be easily compressed and slightly deformed, and the risk of damage to the thermal management component 30 when it is subjected to large concentrated stress can be reduced, or the thermal management component 30 can be prevented from being in contact with the second wall due to a large amount of compression deformation. Contact to block the accommodation space 303 occurs.
  • multiple support members 304 are arranged in parallel.
  • each support member 304 has the same supporting force on the first wall and the second wall, which can reduce the local stress on the thermal management component 30.
  • the risk of deformation is large, and at the same time, it helps to improve the aesthetics of the product.
  • FIG. 5 is a schematic cross-sectional structural view of another thermal management component 30 provided by some embodiments of the present application.
  • at least two supports 304 respectively form different angles with the first wall.
  • the angles between at least two support members 304 and the plane of the first wall can also be set to different angles, such as the angle between one support member 304 and the plane of the first wall.
  • the included angle is 35°
  • the included angle between another adjacent support member 304 and the plane of the first wall is 45°, which can also play the role of supporting the first wall and the second wall, and can make
  • the thermal management component 30 can deform slightly, has a simple structure and principle, and is easy to implement.
  • the thermal management component 30 includes a connecting end 306.
  • the connecting end 306 is located between the first wall and the second wall and connects the first wall and the second wall.
  • the thermal management component 30 also includes at least one end stiffener 305 disposed between the first wall and the second wall and adjacent the connecting end 306 .
  • the connecting end 306 has a curved surface structure. Of course, it can also be a straight edge for connecting the first wall and the second wall.
  • the end reinforcement 305 may be a reinforcing plate or a reinforcing rib.
  • the number of end reinforcements 305 is two, and the two end supports 304 are respectively used to support the two connecting ends 306 of the first wall and the second wall.
  • the end reinforcement 305 serves to support the first connection wall and the second connection
  • the function of the connecting end 306 of the arm improves the local strength of the connecting end 306 and prevents the connecting end 306 from being damaged when it is subjected to large stress.
  • a gap is provided between the end reinforcement 305 and the connecting end 306.
  • the end reinforcement 305 and the connection end 306 are spaced apart so that the heat exchange medium can flow through the gap between the end reinforcement 305 and the connection end 306, so that the connection end 306 can also conduct heat, thereby further improving the heat transfer rate. Manage the uniformity of heat conduction of component 30.
  • the thermal management component 30 further includes: a first reinforcement 307, which is provided on a side surface of the first wall facing the second wall, and, The first reinforcement member 307 is spaced apart from the second wall.
  • the first reinforcing member 307 may be a reinforcing plate or a reinforcing rib.
  • the first reinforcing member 307 By arranging the first reinforcing member 307 on the side surface of the first wall facing the second wall and spacing the first reinforcing member 307 from the second wall, the first reinforcing member 307 can not only improve the strength of the first wall The stiffness can also prevent the first wall and the second wall from being in direct contact when the thermal management component 30 is extruded and deformed, thereby preventing the accommodation space 303 from being blocked and preventing the heat exchange medium from flowing.
  • the thermal management component 30 further includes: a second reinforcing member 308.
  • the second reinforcing member 308 is disposed on a side surface of the second wall facing the first wall and is connected with the first wall. First wall spacer setting.
  • the second reinforcing member 308 may also be a reinforcing plate or reinforcing rib.
  • the second reinforcement member 308 may have the same size as the first reinforcement member 307 or may be different.
  • the second reinforcing member 308 By arranging the second reinforcing member 308 on the side surface of the second wall facing the first wall, and by arranging the second reinforcing member 308 at a distance from the first wall, the second reinforcing member 308 can not only improve the strength of the second wall The stiffness can further prevent the second wall from being in direct contact with the first wall when the thermal management component 30 is extruded and deformed, thereby further preventing the accommodation space 303 from being blocked and preventing the heat exchange medium from flowing.
  • the second reinforcing member 308 and the first reinforcing member 307 are disposed in a staggered position.
  • first reinforcing member 307 and the second reinforcing member 308 By disposing the first reinforcing member 307 and the second reinforcing member 308 in a staggered manner along the stacking direction of the first wall and the second wall, when the first wall and the second wall are pressed close to each other, it is possible to avoid the first The reinforcing member 307 and the second reinforcing member 308 abut each other, thereby preventing the thermal management component 30 from being unable to be extruded and deformed due to the abutting of the first reinforcing member 307 and the second reinforcing member 308 .
  • the size of the first reinforcement 307 and/or the second reinforcement 308 is smaller than the end reinforcement 305.
  • the size of the first reinforcement 307 along the stacking direction of the first wall and the second wall is smaller than that of the end reinforcement 305, or the size of the second reinforcement 308 along the stacking direction of the first wall and the second wall is smaller than the end reinforcement.
  • 305, or the dimensions of the first reinforcement 307 and the second reinforcement 308 along the stacking direction of the first wall and the second wall are both smaller than the end reinforcement 305. Since the end reinforcement 305 plays a role in supporting the first wall and the second wall, the first reinforcement 307 and the second reinforcement 308 prevent the first wall and the second wall from being in direct contact due to extrusion deformation.
  • the size of the first reinforcement 307 and the second reinforcement along the stacking direction of the first wall and the second wall smaller than the end reinforcement 305, it is possible to prevent the connection end 306 of the first wall and the second wall from being damaged. While being damaged due to large stress, the first wall and the second wall will not be in direct contact when the thermal management component 30 is squeezed, thus preventing the accommodation space 303 from being blocked.
  • embodiments of the present application provide a thermal management component 30, including a first wall and a second wall connected to the first wall.
  • the first wall and the second wall are connected to each other.
  • An accommodating space 303 is defined between the walls, and at least one support member 304 is provided between the first wall and the second wall.
  • the at least one support member 304 is disposed in the accommodating space 303 along an extending direction that is inclined to the first wall and the second wall.
  • an end reinforcement 305 spaced apart from the connecting end 306 is provided near the connecting end 306 of the first wall and the second wall, and is provided on a side surface of the first wall facing the second wall.
  • At least one first reinforcement 307 is provided.
  • the first reinforcement 307 is spaced apart from the second wall.
  • a second reinforcement 308 is provided on a side surface of the second wall facing the first wall.
  • the second reinforcement 308 is connected to the first wall.
  • Wall spacer settings at least one support member 304 is arranged obliquely with the extension direction of the first wall and the second wall, so the support force of the first wall and the second wall is appropriately weakened, so that the thermal management component 30 can be compressed and can slightly deformation, thereby meeting the usage scenario where the thermal management component 30 needs to be compressible.

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Abstract

提供一种热管理部件（30）、电池（100）及用电装置。其中，热管理部件（30）包括：第一壁（301）；第二壁（302），与第一壁（301）间隔设置，第一壁（301）与第二壁（302）之间具有容纳空间（303）；支撑件（304），支撑件（304）沿倾斜于第一壁（301）或第二壁（302）的延伸方向设置于容纳空间（303）内，使得热管理部件（30）可被压缩并能够发生轻微变形，以减小电池单体（20）的膨胀对其与热管理部件（30）热传导的效果。

Description

热管理部件、电池及用电装置
相关申请的交叉引用
本申请要求享有于2022年04月29日提交的名称为“热管理部件、电池及用电装置”的中国专利申请CN202221040676.X的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池技术领域，具体而言，涉及一种热管理部件、电池及用电装置。
背景技术
目前，随着新能源汽车快速发展，动力电池已得到越来越多的关注和认可。而为了新能源汽车的安全、稳定运行，需要对电池模组进行有效的热管理。
电池内的电池单体容易随着使用时间的增加而发生外形上的膨胀，从而容易导致电池单体与电池内的热管理部件的接触面积变小，影响热管理部件和电池单体热传导的效率。
发明内容
本申请提供一种热管理部件、电池及用电装置，用以实现热管理部件可被压缩并能够发生轻微变形，以减小电池单体的膨胀对其与热管理部件热传导的效果。
第一方面，本申请实施例提供一种热管理部件，包括：第一壁；第二壁，与所述第一壁间隔设置，所述第一壁与所述第二壁之间具有容纳空 间；支撑件，所述支撑件沿倾斜于所述第一壁或第二壁的延伸方向设置于所述容纳空间内。
在上述实施例中，热管理部件包括第一壁和与第一壁间隔设置的第二壁，且第一壁与第二壁之间具有容纳空间，容纳空间内可以用于容纳热交换介质，例如，可用于冷却后进行热交换的介质或者可用于加热后进行热交换的介质，具体，例如水、冷却液等，从而使得第一壁和第二壁中的至少一者与如电池单体、电池模组等目标件接触时，通过热传递的方式对目标件的温度进行调整。其中，在容纳空间内设有支撑件，且支撑件沿倾斜于第一壁或第二壁的沿伸方向设置，相较于支撑件垂直于第一壁或第二壁的沿伸方向的设置方式而言，本申请的支撑件的对第一壁和第二壁支撑力较小，使得热管理部件受到沿第一壁和第二壁的层叠方向的挤压力时，热管理部件较易发生轻微变形，从而可满足电池包在如封箱装配时需要可压缩变形的风险，同时还可降低热管理部件因受到较大集中应力时发生损坏的风险。
在一些实施例中，所述支撑件的数量为多个，多个所述支撑件间隔设置于所述第一壁和所述第二壁之间。
在上述实施例中，通过在第一壁与第二壁之间间隔设置多个支撑件，多个支撑件能够将容纳空间分隔成多个流道，则当热交换介质进入容纳空间内时，热交换介质可分流至多个流道，从而可使热管理部件与目标件相接触时，能够对目标件的各个部位的温度进行较为均匀地调控，同时，支撑件间隔设置可以避免热管理部件存在局部的强度较高而不易压缩，能够提高整体的热交换功能的可靠性。
在一些实施例中，所述第一壁用于与目标件接触导热；所述支撑件与所述第一壁所在平面相垂直的方向的夹角在35°～55°的范围内。
在上述实施例中，当支撑件与第一壁所在平面相垂直的方向的夹角 小于35°时，支撑件对第一壁和第二壁的支撑力较大，导致热管理部件不易被压缩，当支撑件与第一壁所在平面相垂直的方向的夹角大于55°时，支撑件对第一壁和第二壁的支撑力较小，导致热管理部件受到较大集中应力时损坏，或因压缩变形量较大导致其与第二壁接触以封堵容纳空间，因此，通过将支撑件与第一壁所在平面相垂直的方向的夹角设置在35°～55°之间的范围内，既可使得热管理部件易被压缩发生轻微变形，又可降低热管理部件受到较大集中应力时发生损坏的风险，或避免因压缩变形量较大导致其与第二壁接触以封堵容纳空间的情况发生。
在一些实施例中，多个所述支撑件平行设置。
在上述实施例中，也即多个支撑件与第一壁所在平面向垂直的夹角均相同，每个支撑件对第一壁和第二壁的支撑力均相同，可降低热管理部件局部受力较大而发生变形的风险，同时，有助于提高产品的美观度。
在一些实施例中，至少两个所述支撑件分别与所述第一壁所成的夹角不同。
在上述实施例中，与多个支撑件平行设置的方式不同，也可将至少两个支撑件与第一壁所在平面之间的夹角设置成不同角度，如一个支撑件与第一壁所在平面之间的夹角为35°，与之相邻的另一个支撑件与第一壁所在平面之间的夹角为45°，同样可起到支撑第一壁和第二壁的作用，且可使得热管理部件能够发生轻微变形，结构和原理均较为简单，易于实现。
在一些实施例中，所述热管理部件包括连接端，所述连接端位于所述第一壁和所述第二壁之间并连接所述第一壁和所述第二壁，所述热管理部件还包括：至少一个端部加强件，设于所述第一壁和所述第二壁之间并靠近所述连接端设置。
在上述实施例中，通过在第一壁和第二壁之间并靠近连接第一壁和第二壁的连接端设置至少一个端部加强件，端部加强件起到支撑第一连接 壁和第二连接臂的连接端的作用，提高了连接端的局部强度，防止连接端在受到较大应力时发生损坏的情况发生。
具体的，端部加强件的数量为两个，两个端部支撑件分别用于支撑第一壁和第二壁的两个连接端。
在一些实施例中，所述端部加强件与所述连接端之间设有间隙。
在上述实施例中，即端部加强件与连接端之间间隔设置，使得热交换介质能够从端部加强件与连接端之间的间隙流通，使得连接端也能够进行热传导，从而可进一步提高热管理部件热传导的均匀性。
在一些实施例中，所述热管理部件还包括：第一加强件，所述第一加强件设于所述第一壁朝向所述第二壁的一侧表面，并且，所述第一加强件与所述第二壁间隔设置。
在上述实施例中，通过在第一壁朝向第二壁的一侧表面设置第一加强件，并使第一加强件与第二壁间隔设置，这样，第一加强件不仅可起到提高第一壁的刚度，还可避免热管理部件被挤压变形时，第一壁与第二壁直接接触的情况发生，进而可防止容纳空间被堵塞导致热交换介质无法流通的情况发生。
在一些实施例中，还包括：第二加强件，所述第二加强件设于所述第二壁朝向所述第一壁的一侧表面，并与所述第一壁间隔设置。
在上述实施例中，通过在第二壁朝向第一壁的一侧表面设置第二加强件，并使第二加强件与第一壁间隔设置，这样，第二加强件不仅可起到提高第二壁的刚度，还可进一步避免热管理部件被挤压变形时，第二壁与第一壁直接接触的情况发生，进而可进一步防止容纳空间被堵塞导致热交换介质无法流通的情况发生。
在一些实施例中，沿所述第一壁和所述第二壁的层叠方向投影，所述第二加强件与所述第一加强件错位设置。
在上述实施例中，通过将第一加强件与第二加强件沿第一壁和第二壁的层叠方向错位设置，因此，当第一壁和第二壁因被挤压而相互靠近时，可避免第一加强件与第二加强件相互抵接，从而可避免因第一加强件与第二加强件相抵接而导致热管理部件无法发生挤压变形的情况发生。
在一些实施例中，沿所述第一壁和所述第二壁的层叠方向，所述第一加强件和/或第二加强件的尺寸小于所述端部加强件。
在上述实施例中，即第一加强件沿第一壁和第二壁的层叠方向的尺寸小于端部加强件，或者第二加强件沿第一壁和第二壁的层叠方向的尺寸小于端部加强件，或者第一加强件和第二加强件沿第一壁和第二壁的层叠方向的尺寸均小于端部加强件。由于端部加强件起到支撑第一壁和第二壁的作用，第一加强件和第二加强件起到防止第一壁和第二壁因挤压变形导致直接接触的缺口发生，则通过将第一加强件和第二加强沿第一壁和第二壁的层叠方向的尺寸小于端部加强件，从而可在防止第一壁和第二壁的连接端受到较大应力而损坏的同时，又使得热管理部件被挤压时第一壁和第二壁不会直接接触，进而避免堵塞容纳空间的情况发生。
第二方面，本申请实施例提供了一种电池，包括：目标件；和如第一方面实施例中任一项所述的热管理部件，所述热管理部件通过所述第一壁与所述目标件导热接触。
在上述实施例中，目标件可以是电芯组等部件。由于第二方面实施例提供的电池包括第一方面实施例中任一项所述的热管理部件，因此具有上述任一实施例所具有的技术效果，在此不再赘述。
在一些实施例中，所述电池还包括集流部件，所述集流部件与所述热管理部件连接，所述集流部件包括集流流道，所述集流流道与所述热管理部件的所述容纳空间连通。
在上述实施例中，通过将集流部件的集流流道与热管理部件的容纳 空间相连通，从而可使热交换介质在通过集流部件进入容纳空间，以实现对目标件的温度调整，并且，能够使得容纳空间内的热交换介质在进行热交换以后回流入集流部件，以实现循环热传导。
第三方面，本申请实施例提供一种用电装置，包括第二方面实施例中所述的电池，所述电池用于为所述用电装置供电。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本申请一些实施例的车辆的结构示意图；
图2为本申请一些实施例的电池的分解结构示意图；
图3为本申请一些实施例提供的电池的局部结构示意图；
图4为本申请一些实施例提供的一种热管理部件的剖视结构示意图；
图5为本申请一些实施例提供的另一者热管理部件的剖视结构示意图；
在附图中，附图并未按照实际的比例绘制。
标记说明：车辆1000；电池100，控制器200，马达300；箱体10，第一部分11，第二部分12；电池单体20，热管理部件30，目标件40；第 一壁301，第二壁302，容纳空间303，支撑件304，端部加强件305，连接端306，第一加强件307，第二加强件308。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
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申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
动力电池在不同的环境温度下会呈现不同的电循环性能，当环境温度过高或过低时，都会导致动力电池的循环性能下降，甚至引起其使用寿命缩短。为了使得新能源汽车安全、性能稳定、优异地运行，必须对电池模组进行有效的热管理，控制电池模组始终工作在合适的温度范围内。
发明人发现，随着电池使用时间的增长，电池内的电池单体容易由于内部产气引起外形的鼓胀，使得电池单体或多个电池单体组合形成的模块与热管理部件的导热面积减小，使得热交换效率降低，效果较差。
基于以上考虑，发明人经过深入研究，设计了一种热管理部件，在热管理部件的第一壁与第二壁之间设置有支撑件，且使支撑件沿倾斜于第一壁和第二壁的沿伸方向设置于容纳空间内，这样，可以使得支撑件对第一壁和第二壁的支撑力适当减弱，使得热管理部件在电池单体或电池模块发生外形的膨胀时可相应被压缩并能够发生轻微变形，从而可降低两者热交换面积的减小。
本申请实施例所提供的热管理部件和电池可以用于多种不同的用电装置中以解决上述问题，用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
以下实施例为了方便说明，以本申请一实施例的一种用电装置为车辆1000为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源。车辆1000还可以包括控制器200和马达300，控制器200用来控制电池100为马达300供电，例如，用于车辆1000的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
请参照图2，图2为本申请一些实施例提供的电池100的分解结构示意图。电池100包括箱体10和电池单体20，电池单体20容纳于箱体10内。其中，箱体10用于电池单体20提供容纳空间，箱体10可以采用多种结构。在一些实施例中，箱体10可以包括第一部分11和第二部分12，第一部分11与第二部分12相互盖合，第一部分11和第二部分12共同限定出用于容纳电池单体20的容纳空间。第二部分12可以为一端开口的空心结构，第一部分11可以为板状结构，第一部分11盖合于第二部分12的开口侧，以使第一部分11与第二部分12共同限定出容纳空间；第一部分11和第二部分12也可以是均为一侧开口的空心结构，第一部分11的开口侧盖合于第二部分12的开口侧。当然，第一部分11和第二部分12形成的箱体10可以是多种形状，比如，圆柱体、长方体等。
在电池100中，电池单体20可以是多个，多个电池单体20之间可串联或并联或混联，混联是指多个电池单体20中既有串联又有并联。多个电池单体20之间可直接串联或并联或混联在一起，再将多个电池单体20构成的整体容纳于箱体10内；当然，电池100也可以是多个电池单体20先串联或并联或混联组成电池模块形式，多个电池模块再串联或并联或混联形成一个整体，并容纳于箱体10内。电池100还可以包括电连接件，用于实现多个电池单体20之间的电连接。电池单体20是指组成电池100的最小单元。如图3，电池单体20包括有电连接件，电连接结电连接件用于电连接相邻的两个电池单体20。
其中，每个电池单体20可以为二次电池单体或一次电池单体；还可以是锂硫电池单体、钠离子电池单体或镁离子电池单体，但不局限于此。 电池单体20可呈圆柱体、扁平体、长方体或其它形状等。
请参考图3，图3为本申请一些实施例提供的电池的局部结构示意图。根据本申请的一些实施例，本申请实施例提供的电池20包括目标件和热管理部件30，热管理部件30的第一壁用于与目标件接触，并对目标件进行热交换。其中，目标件可以是电池单体或电池模块等部件。
请参考图3，根据本申请的一些实施例，电池20还包括集流部件，集流部件与热管理部件30连接，集流部件包括集流流道，集流流道与热管理部件30的容纳空间303连通。通过将集流部件的集流流道与热管理部件30的容纳空间303相连通，从而可使热交换介质在通过集流部件进入容纳空间303，以实现对目标件的温度调整，并且，能够使得容纳空间303内的热交换介质在进行热交换以后回流入集流部件，以实现循环热交换。
请参考图3和图4，图4为本申请一些实施例提供的一种热管理部件30的剖视结构示意图。如图4所示，本申请一些实施例提供的热管理部件30，包括：第一壁；第二壁，与第一壁间隔设置，第一壁与第二壁之间具有容纳空间303；支撑件304，支撑件304沿倾斜于第一壁或第二壁的延伸方向设置于容纳空间303内。
第一壁和第二壁为导热件，用于与目标件进行热交换。
容纳空间303连通于热管理部件30的两端，用于供如水等热交换介质流通，从而使得第一壁和第二壁中的至少一者与如电池20模组等目标件接触时，通过热传递的方式对目标件的温度进行调整。
示例性的，支撑件304可以是支撑板或支撑筋等。且支撑件304的具体形状不受限定，如支撑件304的截面形状为直条状或弯折状等。
通过在容纳空间303内设有至少一个支撑件304，且至少一个支撑件304沿倾斜于第一壁或第二壁的沿伸方向设置，相较于支撑件304垂直 于第一壁或第二壁的沿伸方向的设置方式而言，本申请的支撑件304的对第一壁和第二壁支撑力较小，使得热管理部件30受到沿第一壁和第二壁的层叠方向的挤压力时，热管理部件30较易发生轻微变形，从而可满足电池20包在如封箱装配时需要可压缩变形的风险，同时还可降低热管理部件30因受到较大集中应力时发生损坏的风险。
根据本申请的一些实施例，支撑件304的数量为多个，多个支撑件304间隔设置于第一壁和第二壁之间。
通过在第一壁与第二壁之间间隔设置多个支撑件304，在提高热管理部件30的支撑强度的同时，多个支撑件304能够将容纳空间303分隔成多个流道，则当热交换介质进入容纳空间303内时，热交换介质可分流至多个流道，从而可使热管理部件30与目标件相接触时，能够对目标件的各个部位的温度进行较为均匀地调控。
根据本申请的一些实施例，第一壁用于与目标件接触导热；支撑件304与第一壁所在平面相垂直的方向的夹角在35°～55°的范围内。
当支撑件304与第一壁所在平面相垂直的方向的夹角小于35°时，支撑件304对第一壁和第二壁的支撑力较大，导致热管理部件30不易被压缩，当支撑件304与第一壁所在平面相垂直的方向的夹角大于55°时，支撑件304对第一壁和第二壁的支撑力较小，导致热管理部件30受到较大集中应力时损坏，或因压缩变形量较大导致其与第二壁接触以封堵容纳空间303，因此，通过将支撑件304与第一壁所在平面相垂直的方向的夹角设置在35°～55°之间的范围内，既可使得热管理部件30易被压缩发生轻微变形，又可降低热管理部件30受到较大集中应力时发生损坏的风险，或避免因压缩变形量较大导致其与第二壁接触以封堵容纳空间303的情况发生。
请参考图4，根据本申请的一些实施例，多个支撑件304平行设置。
也即多个支撑件304与第一壁所在平面向垂直的夹角均相同，每个支撑件304对第一壁和第二壁的支撑力均相同，可降低热管理部件30局部受力较大而发生变形的风险，同时，有助于提高产品的美观度。
请参考图5，图5为本申请一些实施例提供的另一种热管理部件30的剖视结构示意图。根据本申请的一些实施例，至少两个支撑件304分别与第一壁所成的夹角不同。
与多个支撑件304平行设置的方式不同，也可将至少两个支撑件304与第一壁所在平面之间的夹角设置成不同角度，如一个支撑件304与第一壁所在平面之间的夹角为35°，与之相邻的另一个支撑件304与第一壁所在平面之间的夹角为45°，同样可起到支撑第一壁和第二壁的作用，且可使得热管理部件30能够发生轻微变形，结构和原理均较为简单，易于实现。
请参考图4和图5，根据本申请的一些实施例，热管理部件30包括连接端306，连接端306位于第一壁和第二壁之间并连接第一壁和第二壁，热管理部件30还包括：至少一个端部加强件305，设于第一壁和第二壁之间并靠近连接端306设置。
示例性的，连接端306为弧面结构。当然，也可以是直边，用于连接第一壁和第二壁。
示例性的，端部加强件305可以是加强板或加强筋等。
示例性的，端部加强件305的数量为两个，两个端部支撑件304分别用于支撑第一壁和第二壁的两个连接端306。
通过在第一壁和第二壁之间并靠近连接第一壁和第二壁的连接端306设置至少一个端部加强件305，端部加强件305起到支撑第一连接壁和第二连接臂的连接端306的作用，提高了连接端306的局部强度，防止连接端306在受到较大应力时发生损坏的情况发生。
请参考图4和图5，根据本申请的一些实施例，端部加强件305与连接端306之间设有间隙。
即端部加强件305与连接端306之间间隔设置，使得热交换介质能够从端部加强件305与连接端306之间的间隙流通，使得连接端306也能够进行热传导，从而可进一步提高热管理部件30热传导的均匀性。
请参考图4和图5，根据本申请的一些实施例，热管理部件30还包括：第一加强件307，第一加强件307设于第一壁朝向第二壁的一侧表面，并且，第一加强件307与第二壁间隔设置。
示例性的，第一加强件307可以是加强板或加强筋等。
通过在第一壁朝向第二壁的一侧表面设置第一加强件307，并使第一加强件307与第二壁间隔设置，这样，第一加强件307不仅可起到提高第一壁的刚度，还可避免热管理部件30被挤压变形时，第一壁与第二壁直接接触的情况发生，进而可防止容纳空间303被堵塞导致热交换介质无法流通的情况发生。
请参考图4和图5，根据本申请的一些实施例，热管理部件30还包括：第二加强件308，第二加强件308设于第二壁朝向第一壁的一侧表面，并与第一壁间隔设置。
示例性的，第二加强件308也可以是加强板或加强筋等。第二加强件308的尺寸可以与第一加强件307相同，也可以不同。
通过在第二壁朝向第一壁的一侧表面设置第二加强件308，并使第二加强件308与第一壁间隔设置，这样，第二加强件308不仅可起到提高第二壁的刚度，还可进一步避免热管理部件30被挤压变形时，第二壁与第一壁直接接触的情况发生，进而可进一步防止容纳空间303被堵塞导致热交换介质无法流通的情况发生。
请参考图4和图5，根据本申请的一些实施例，沿第一壁和第二壁 的层叠方向投影，第二加强件308与第一加强件307错位设置。
通过将第一加强件307与第二加强件308沿第一壁和第二壁的层叠方向错位设置，因此，当第一壁和第二壁因被挤压而相互靠近时，可避免第一加强件307与第二加强件308相互抵接，从而可避免因第一加强件307与第二加强件308相抵接而导致热管理部件30无法发生挤压变形的情况发生。
请参考图4和图5，根据本申请的一些实施例，沿第一壁和第二壁的层叠方向，第一加强件307和/或第二加强件308的尺寸小于端部加强件305。
即第一加强件307沿第一壁和第二壁的层叠方向的尺寸小于端部加强件305，或者第二加强件308沿第一壁和第二壁的层叠方向的尺寸小于端部加强件305，或者第一加强件307和第二加强件308沿第一壁和第二壁的层叠方向的尺寸均小于端部加强件305。由于端部加强件305起到支撑第一壁和第二壁的作用，第一加强件307和第二加强件308起到防止第一壁和第二壁因挤压变形导致直接接触的缺口发生，则通过将第一加强件307和第二加强沿第一壁和第二壁的层叠方向的尺寸小于端部加强件305，从而可在防止第一壁和第二壁的连接端306受到较大应力而损坏的同时，又使得热管理部件30被挤压时第一壁和第二壁不会直接接触，进而避免堵塞容纳空间303的情况发生。
请参考图3至图5，根据本申请的一些实施例，本申请实施例提供了一种热管理部件30，包括第一壁和与第一壁相连的第二壁，第一壁与第二壁之间限定有容纳空间303，且第一壁与第二壁之间设置至少一个支撑件304，至少一个支撑件304沿倾斜于第一壁和第二壁的沿伸方向设置于容纳空间303内。同时，在靠近第一壁和第二壁的连接端306设置有与连接端306间隔设置的端部加强件305，在第一壁朝向第二壁的一侧表面上 设置有至少一个第一加强件307，第一加强件307与第二壁间隔设置，在第二壁朝向第一壁的一侧表面设置有第二加强件308，第二加强件308与第一壁间隔设置。其中，至少一个支撑件304由于与第一壁和第二壁的沿伸方向倾斜设置，因此对第一壁和第二壁的支撑力适当减弱，使得热管理部件30可被压缩并能够发生轻微变形，从而可满足热管理部件30需要可压缩的使用场景。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (14)

  1. 一种热管理部件，包括：
    第一壁；
    第二壁，与所述第一壁间隔设置，所述第一壁与所述第二壁之间具有容纳空间；
    支撑件，所述支撑件沿倾斜于所述第一壁或第二壁的延伸方向设置于所述容纳空间内。
  2. 根据权利要求1所述的热管理部件，其中，所述支撑件的数量为多个，多个所述支撑件间隔设置于所述第一壁和所述第二壁之间。
  3. 根据权利要求1或2所述的热管理部件，其中，所述第一壁用于与目标件接触导热；
    所述支撑件与所述第一壁所在平面相垂直的方向的夹角在35°～55°的范围内。
  4. 根据权利要求1-3中任一项所述的热管理部件，其中，多个所述支撑件平行设置。
  5. 根据权利要求1-3中任一项所述的热管理部件，其中，至少两个所述支撑件分别与所述第一壁所成的夹角不同。
  6. 根据权利要求1-5中任一项所述的热管理部件，其中，所述热管理部件包括连接端，所述连接端位于所述第一壁和所述第二壁之间并连接所述第一壁和所述第二壁，所述热管理部件还包括：至少一个端部加强件，设于所述第一壁和所述第二壁之间并靠近所述连接端设置。
  7. 根据权利要求6所述的热管理部件，其中，所述端部加强件与所述连接端之间设有间隙。
  8. 根据权利要求6所述的热管理部件，其中，所述热管理部件还包括：第一加强件，所述第一加强件设于所述第一壁朝向所述第二壁的一侧表面， 并且，所述第一加强件与所述第二壁间隔设置。
  9. 根据权利要求8所述的热管理部件，其中，还包括：第二加强件，所述第二加强件设于所述第二壁朝向所述第一壁的一侧表面，并与所述第一壁间隔设置。
  10. 根据权利要求9所述的热管理部件，其中，沿所述第一壁和所述第二壁的层叠方向投影，所述第二加强件与所述第一加强件错位设置。
  11. 根据权利要求9所述的热管理部件，其中，沿所述第一壁和所述第二壁的层叠方向，所述第一加强件和/或第二加强件的尺寸小于所述端部加强件。
  12. 一种电池，包括：
    目标件；和
    如权利要求1-11中任一项所述的热管理部件，所述热管理部件通过所述第一壁与所述目标件导热接触。
  13. 根据权利要求12所述的电池，其中，所述电池还包括集流部件，所述集流部件与所述热管理部件连接，所述集流部件包括集流流道，所述集流流道与所述热管理部件的所述容纳空间连通。
  14. 一种用电装置，包括如权利要求12-13中任一项所述的电池，所述电池用于为所述用电装置供电。
PCT/CN2023/089822 2022-04-29 2023-04-21 热管理部件、电池及用电装置 Ceased WO2023207798A1 (zh)

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