WO2023245502A1 - Thermal management component, thermal management system, battery and electric device - Google Patents

Thermal management component, thermal management system, battery and electric device Download PDF

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Publication number
WO2023245502A1
WO2023245502A1 PCT/CN2022/100488 CN2022100488W WO2023245502A1 WO 2023245502 A1 WO2023245502 A1 WO 2023245502A1 CN 2022100488 W CN2022100488 W CN 2022100488W WO 2023245502 A1 WO2023245502 A1 WO 2023245502A1
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WO
WIPO (PCT)
Prior art keywords
side wall
thermal management
bending plate
management component
battery
Prior art date
Application number
PCT/CN2022/100488
Other languages
French (fr)
Chinese (zh)
Inventor
周聪
侯跃攀
宋飞亭
黄小腾
胡利军
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to PCT/CN2022/100488 priority Critical patent/WO2023245502A1/en
Priority to CN202280006457.6A priority patent/CN116261798A/en
Priority to CN202223349993.2U priority patent/CN219350408U/en
Priority to CN202380008510.0A priority patent/CN116868417B/en
Priority to KR1020247022580A priority patent/KR20240117128A/en
Priority to CN202380008511.5A priority patent/CN116724443B/en
Priority to CN202320014583.8U priority patent/CN219203337U/en
Priority to EP23755626.1A priority patent/EP4459748A1/en
Priority to CN202380008509.8A priority patent/CN116802897B/en
Priority to CN202320014474.6U priority patent/CN220042013U/en
Priority to PCT/CN2023/070135 priority patent/WO2023155624A1/en
Priority to KR1020247022994A priority patent/KR20240118854A/en
Priority to KR1020247018661A priority patent/KR20240099426A/en
Priority to KR1020247023321A priority patent/KR20240118156A/en
Priority to CN202380008508.3A priority patent/CN116491016A/en
Priority to EP23755627.9A priority patent/EP4451443A1/en
Priority to EP23755624.6A priority patent/EP4459749A1/en
Priority to CN202320014404.0U priority patent/CN219575742U/en
Priority to PCT/CN2023/070136 priority patent/WO2023155625A1/en
Priority to PCT/CN2023/070133 priority patent/WO2023155623A1/en
Priority to CN202380008512.XA priority patent/CN116848705B/en
Priority to EP23755628.7A priority patent/EP4451444A1/en
Priority to CN202320014347.6U priority patent/CN219203386U/en
Priority to CN202320014354.6U priority patent/CN219203336U/en
Priority to PCT/CN2023/070126 priority patent/WO2023155621A1/en
Priority to PCT/CN2023/070131 priority patent/WO2023155622A1/en
Priority to CN202380008507.9A priority patent/CN116745978A/en
Priority to PCT/CN2023/070125 priority patent/WO2023155620A1/en
Priority to KR1020247018372A priority patent/KR20240091290A/en
Priority to KR1020247022516A priority patent/KR20240117127A/en
Priority to CN202320014214.9U priority patent/CN219203335U/en
Priority to CN202410820399.1A priority patent/CN118610662A/en
Publication of WO2023245502A1 publication Critical patent/WO2023245502A1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/623Portable devices, e.g. mobile telephones, cameras or pacemakers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/64Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647Prismatic or flat cells, e.g. pouch cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and more specifically, to a thermal management component, a thermal management system, a battery and an electrical device.
  • 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.
  • This application provides a thermal management component, a thermal management system, a battery and an electrical device, which can improve the cycle performance of the battery.
  • a thermal management component which includes a housing and a support component.
  • the support component is accommodated in the housing and used to define flow channels and cavities that are separately arranged in the housing.
  • the flow channels are used for supply and replacement.
  • Thermal medium flows and the cavity is configured to deform when the housing is pressurized.
  • the heat exchange medium in the flow channel is used to heat or cool the battery cells.
  • the shell is affected by the force of the battery cells. It can deform when a force is applied to prevent the outer shell of the thermal management component from having an excessive reaction on the battery cells, absorb tolerances for the battery cells in groups, avoid damaging the battery cells, and reduce the heat exchange area between the thermal management components and the battery cells. By a small margin, the cycle performance of the battery cells is improved.
  • the support component and the housing are enclosed to form a flow channel.
  • the casing is configured to be in direct contact with the battery cells, and the support component and the casing are jointly enclosed to form a flow channel.
  • the heat exchange medium can contact the battery cells through the casing, thereby improving the heat exchange efficiency of the battery cells.
  • the support component includes a separation component and a support component.
  • the separation component is used to define separately arranged flow channels and cavities in the housing; the support component is used to be disposed in the flow channel or jointly define the flow channel with the separation component. , to support the flow channel.
  • the interior of the housing is divided into a flow channel and a cavity through a partition assembly, and the assembly is used to support the flow channel, which improves the strength of the flow channel, so that when the thermal management component absorbs expansion and tolerance, the internal structure of the flow channel is reduced.
  • the flow rate of the heat exchange medium does not change, preventing the heat exchange medium from overflowing. At the end of the battery life cycle, the flow channel will not be crushed and blocked.
  • the housing includes a first side wall and a second side wall, the second side wall is arranged opposite to the first side wall along a first direction, and the partition assembly is connected to the first side wall and the second side wall respectively.
  • connection strength of the first side wall and the second side wall can be enhanced by connecting the partition components to the first side wall and the second side wall respectively.
  • the partition assembly includes a first bending plate and a second bending plate.
  • the first bending plate is connected to the first side wall; the second bending plate is connected to the second side wall.
  • the first bending plate and the second bent plate define a cavity.
  • the cavity space defined by the first bending plate and the second bending plate is large, ensuring the deformation space of the thermal management component.
  • the support assembly includes first support ribs and second support ribs, the first support ribs are respectively connected to the first bending plate and the second side wall; the second support ribs are respectively connected to the second bending plate and the second side wall.
  • the first support rib increases the connection strength between the first bending plate and the shell
  • the second support rib increases the connection strength between the second bending plate and the shell
  • both ends of the first bending plate are connected to the first side wall, and both ends of the second bending plate are connected to the second side wall; in the first direction, the first bending plate and the second side wall are connected to each other.
  • the bending plates are arranged in a staggered manner, and a flow channel is formed between the first support rib and the second support rib.
  • the first bending plate is connected to the first side wall to form a cavity close to the first side wall
  • the second bending plate is connected to the second side wall to form a cavity close to the second side wall.
  • the flow channel is located between the two cavities.
  • the first side wall and the second side wall can be used to contact two adjacent battery cells respectively, so that the two thermal management components can absorb the expansion of the two battery cells at the same time.
  • the number of the first bending plates is multiple, and two adjacent first bending plates are separated by a preset distance; and/or the number of the second bending plates is multiple. There is a preset distance between two adjacent second bending plates.
  • two ends of the first bending plate are connected to the first side wall to form a flow channel close to the first side wall; two ends of the second bending plate are connected to the second side wall to form a flow channel close to the first side wall.
  • the flow channel of the second side wall is not limited to the first bending plate.
  • the two flow channels can be in contact with two adjacent battery cells respectively, which increases the heat exchange area of the thermal management component.
  • the first bending plate and the second bending plate are arranged oppositely; the bending part of the first bending plate is connected to the bending part of the second bending plate.
  • the bending part of the first bending plate is connected to the bending part of the second bending plate, which can enhance the strength of the partition assembly.
  • the first bending plate includes a first inclined section and a second inclined section connected to each other, and the first support ribs are respectively connected to the first inclined section and the second inclined section; and/or, the second bending plate
  • the board includes a third inclined section and a fourth inclined section connected to each other, and the second support ribs are connected to the third inclined section and the fourth inclined section respectively.
  • connection strength of the first bending plate and/or the second bending plate can be strengthened, and the strength of the flow channel close to the first side wall and/or the strength of the flow channel close to the second side wall can be improved.
  • the partition assembly includes a first partition and a second partition, the first partition extends along the second direction, the second partition extends along the first direction, the first direction and the second direction intersect, and the first partition extends along the second direction.
  • the two partitions are respectively connected to the first side wall and the second side wall to define separate flow channels and cavities in the housing.
  • the second partition can support the first side wall and the second side wall, which improves the structural strength of the thermal management component.
  • the cavities and flow channels are arranged alternately.
  • the cavities and flow channels are arranged alternately, which can not only ensure the heat exchange efficiency of the battery cells, but also absorb the expansion of the battery cells evenly.
  • the cavity and the flow channel are disposed adjacently in the first direction.
  • first support ribs are connected to the first partition and the first side wall respectively
  • second support ribs are connected to the first partition and the second side wall respectively.
  • the first support rib and the second support rib respectively extend along the first direction.
  • the flow rate of the flow channel can be prevented from changing.
  • a second embodiment of the present application provides a thermal management system, including the thermal management component provided in any of the above embodiments, with multiple thermal management components arranged at intervals.
  • a third embodiment of the present application provides a battery, including a battery cell and the above-mentioned thermal management component, and the thermal management component is configured to be close to the battery cell.
  • a fourth embodiment of the present application provides an electrical device, including the above-mentioned battery, and the battery is used to provide electrical energy.
  • Figure 1 is a schematic structural diagram of a vehicle provided by some embodiments of the present application.
  • FIG. 2 is an exploded schematic diagram of a battery provided by some embodiments of the present application.
  • Figure 3 is a schematic structural diagram of a thermal management component provided by some embodiments of the present application.
  • Figure 4 is an enlarged schematic diagram of point A in Figure 3;
  • Figure 5 is a schematic structural diagram of a thermal management system provided by some embodiments of the present application.
  • Figure 6 is a schematic structural diagram of the thermal management component shown in Figure 3 from another angle;
  • Figure 7 is a side view of a thermal management component provided by some embodiments of the present application.
  • Figure 8 is a side view of a thermal management component provided by other embodiments of the present application.
  • Figure 9 is an enlarged schematic diagram of B in Figure 7;
  • Figures 10 and 11 are enlarged schematic views of C in Figure 8;
  • Figure 12 is a side view of a thermal management component provided by some embodiments of the present application.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the 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.
  • connection should be understood in a broad sense.
  • connection can be a fixed connection, It can also be detachably connected or integrally connected; it can be directly connected or indirectly connected through an intermediate medium; it can be internal communication between two components.
  • connection can be a fixed connection
  • connection can also be detachably connected or integrally connected; it can be directly connected or indirectly connected through an intermediate medium; it can be internal communication between two components.
  • connection can also be detachably connected or integrally connected; it can be directly connected or indirectly connected through an intermediate medium; it can be internal communication between two components.
  • “Plural” appearing in this application means two or more (including two).
  • battery cells may include lithium ion secondary battery cells, lithium ion primary battery cells, lithium sulfur battery cells, sodium lithium ion battery cells, sodium ion battery cells or magnesium ion battery cells, etc.
  • the embodiments of the present application are not limited to this.
  • the battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this.
  • battery cells may include lithium ion secondary battery cells, lithium ion primary battery cells, lithium sulfur battery cells, sodium lithium ion battery cells, sodium ion battery cells or magnesium ion battery cells, etc.
  • the embodiments of the present application are not limited to this.
  • the battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, rectangular battery cells and soft-pack battery cells, and the embodiments of the present application are not limited to this.
  • the battery mentioned in the embodiments of this application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in this application may include a battery module or a battery pack.
  • Batteries generally include a box for packaging one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
  • the battery cell includes an electrode assembly and an electrolyte.
  • the electrode assembly consists of a positive electrode sheet, a negative electrode sheet and a separator. Battery cells mainly rely on the movement of metal ions between the positive and negative electrodes to work.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector that is not coated with the positive electrode active material layer protrudes from the current collector that is coated with the positive electrode active material layer.
  • the current collector coated with the positive electrode active material layer is laminated to form a positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganate, etc.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector that is not coated with the negative electrode active material layer protrudes from the current collector that is coated with the negative electrode active material layer.
  • the current collector coated with the negative electrode active material layer is laminated to serve as the negative electrode tab.
  • the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon.
  • the material of the isolation film can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.
  • the electrode assembly may have a rolled structure or a laminated structure, and the embodiments of the present application are not limited thereto.
  • the battery cells disclosed in the embodiments of the present application can be used in, but are not limited to, electrical devices such as vehicles, ships, or aircrafts.
  • the power supply system of the electrical device can be composed of battery cells, batteries, etc. disclosed in this application, which is beneficial to improving the stability of battery performance and battery life.
  • 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 battery will decrease and even its service life will be shortened. In order to ensure the safety, stable performance and excellent operation of new energy vehicles, effective thermal management of the battery must be carried out to control the battery to always operate within a suitable temperature range.
  • the inventor installed a thermal management component in the battery.
  • the thermal management component can be used to exchange heat with the battery cells to effectively manage the heat of the battery and make the battery cells operate within a suitable temperature range.
  • the inventor designed a thermal management component, which includes a casing and a supporting component.
  • the supporting component is accommodated in the casing and used to define partitions in the casing.
  • a flow channel and a cavity are provided, the flow channel is used for the heat exchange medium to flow, and the cavity is configured to be deformable when the shell is pressurized.
  • the heat exchange medium in the flow channel is used to heat or cool the battery cells.
  • the battery cells disclosed in the embodiments of the present application can be used in, but are not limited to, electrical devices such as vehicles, ships, or aircrafts.
  • the power supply system of the electrical device can be composed of battery cells, batteries, etc. disclosed in this application, which is beneficial to improving the stability of battery performance and battery life.
  • Embodiments of the present application provide an electrical device that uses a battery as a power source.
  • the electrical device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a 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 .
  • the battery 100 includes a battery box and battery cells 20 .
  • the battery box may include an upper cover 10 and a box body 30 .
  • the upper cover 10 and the box body 30 cover each other.
  • the upper cover 10 and the box body 30 jointly define an accommodation cavity for accommodating the battery cells 20 .
  • the box 30 can be a hollow structure with one end open, and the upper cover 10 can be a plate-like structure.
  • the upper cover 10 is closed on the open side of the box 30 so that the upper cover 10 and the box 30 jointly define a containing cavity; the upper cover 10 can be a plate-shaped structure.
  • the battery box formed by the upper cover 10 and the box body 30 can have various shapes, such as a cylinder, a 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.
  • Multiple battery cells 20 can be directly connected in series, in parallel, or mixed together, and then the whole composed of multiple battery cells 20 can be accommodated in the box; of course, the battery 100 can also have multiple battery cells 20 connected in series first. They can be connected in parallel or mixed to form a battery module, and multiple battery modules can be connected in series, parallel or mixed to form a whole, and be accommodated in the box.
  • the battery 100 may also include other structures.
  • the battery 100 may further include a bus component for realizing electrical connections between multiple 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.
  • FIG. 3 is a schematic structural diagram of a thermal management component provided by some embodiments of the present application
  • Figure 4 is an enlarged schematic diagram of point A in Figure 3.
  • a thermal management component 40 which includes a housing 50 and a support component 60.
  • the support component 60 is accommodated in the housing 50 and used to define separate flow channels 40b and cavities in the housing 50.
  • 40a, the flow channel 40b is used for the flow of heat exchange medium, and the cavity 40a is configured to be deformable when the shell 50 is pressurized.
  • the heat exchange medium can be water, ethylene glycol and other liquids, and the temperature of the heat exchange medium in the flow channel 40b can be adjusted.
  • the thermal management component 40 can cool down the battery cell;
  • the thermal management component 40 can keep the battery cell 20 warm and extend the service life of the battery.
  • the thermal management component 40 can be disposed at the bottom or side of the battery box to fully contact the battery cells 20, or it can be disposed between two adjacent battery cells 20 as shown in Figure 5.
  • Figure 5 shows some examples of this application.
  • the embodiment provides a schematic structural diagram of the thermal management system; the thermal management component is in contact with the side with the largest area of the battery cell 20 to improve the heat exchange efficiency of the battery.
  • the battery cell 20 is located between two adjacent thermal management components 40 such that both sides of each battery cell 20 are in contact with two thermal management components 40 respectively.
  • Multiple thermal management components 40 are connected through connecting pipes 70 to The connection between the various thermal management components 40 and the circulation of the heat exchange medium are realized.
  • Both ends of the flow channel 40b are designed with openings for the flow of heat exchange medium.
  • the heat exchange medium makes the flow channel 40b have a certain strength and generally will not be compressed and deformed.
  • Both ends of the cavity 40a are designed to be sealed so that the heat exchange medium will not enter the cavity 40a.
  • the volume of the cavity 40a accounts for 10%-90%, so it is prone to deformation.
  • the casing 50 and the supporting member 60 can be made of the same material through an integrated molding process.
  • the casing 50 can also be made of a material with greater elasticity than the supporting member 60 , so that when the casing 50 is subjected to the expansion force of the battery cell 20 , the casing 50 can be hollowed out.
  • Cavity 40a is deformable.
  • the battery cells 20 are heated or cooled by the heat exchange medium in the flow channel 40b.
  • the casing 50 can deform when subjected to the force of the battery cells 20, preventing the casing 50 of the thermal management component 40 from having an excessive reaction on the battery cells 20, absorbing tolerances for the battery cells 20 in groups, and avoiding damage to the battery cells 20. Reduce the heat exchange area between the thermal management component 40 and the battery cell 20 to improve the cycle performance of the battery cell 20 .
  • the support component 60 and the housing 50 are enclosed to form a flow channel 40b.
  • the support member 60 can be connected with the casing 50 to form a flow channel 40b.
  • the number of the flow channels 40b can be multiple.
  • the multiple flow channels 40b are adjacent or spaced apart to fully exchange heat for the battery cells 20.
  • the casing 50 is configured to be in direct contact with the battery cells 20, and the support member 60 and the casing 50 are jointly enclosed to form a flow channel 40b.
  • the heat exchange medium can contact the battery cells 20 through the casing 50, thereby improving the efficiency of the battery cells. Heat transfer efficiency of 20%.
  • FIG. 6 is a schematic structural diagram of the thermal management component shown in FIG. 3 from another angle.
  • the support component 60 includes a partition component 61 and a support component 62.
  • the partition component 61 is used to define a flow channel 40b and a cavity 40a arranged separately in the housing 50; the support component 62 is used to be arranged in the flow channel 40b or with the partition component 61. Together, the flow channel 40b is defined to support the flow channel 40b.
  • the partition component 61 is connected to the support component 62 and is respectively connected to the housing 50 to define the flow channel 40b and the cavity 40a.
  • the support component 62 can be disposed inside the flow channel 40b to support the flow channel 40b, or the support component 62 can be used as a side of the flow channel 40b, connected to the shell 50 and the partition component 61, and enclosed to form the flow channel 40b, which can also achieve convection.
  • Road 40b supports.
  • the interior of the housing 50 is divided into the flow channel 40b and the cavity 40a through the partition assembly 61, and the flow channel 40b is supported through the support assembly 62, thereby improving the strength of the flow channel 40b, so that the thermal management component 40 absorbs expansion and
  • the tolerance is set, the volume inside the flow channel 40b is prevented from being reduced, the flow rate of the heat exchange medium inside the flow channel 40b is changed, and the heat exchange medium is prevented from overflowing.
  • the flow channel 40b will not be crushed and blocked.
  • the housing 50 includes a first side wall 50a and a second side wall 50b.
  • the second side wall 50b is arranged opposite to the first side wall 50a along the first direction X.
  • the partition assembly 61 is respectively connected with the first side wall 50a and the second side wall 50b. connect.
  • the first direction X is the X direction as shown in FIG. 6 , and may be the thickness direction of the thermal management component 40 .
  • the first side wall 50a and the second side wall 50b can be configured as the side walls with the largest area of the thermal management component 40, and the thermal management component 40 can be disposed at the bottom or side of the battery box, the first side wall 50a or the second side wall 50b is in contact with the battery cell 20 to fully exchange heat with the battery cell 20; the thermal management component 40 can also be disposed between two adjacent battery cells 20, the first side wall 50a and the second side wall 50b They are respectively in contact with two adjacent battery cells 20 to exchange heat with different battery cells 20 and improve the heat exchange efficiency of the battery.
  • the connection strength of the first side wall 50a and the second side wall 50b can be strengthened, and the overall strength of the thermal management component 40 can be improved.
  • Figure 7 is a side view of a thermal management component provided by some embodiments of the present application
  • Figure 8 is a side view of a thermal management component provided by other embodiments of the present application.
  • the partition assembly 61 includes a first bending plate 611 and a second bending plate 612.
  • the first bending plate 611 is connected to the first side wall 50a; the second bending plate 612 is connected to the second side wall 50b.
  • the plate 611 and the second bent plate 612 define the cavity 40a.
  • the first bending plate 611 is connected to the first side wall 50a and can define a cavity 40a close to the first side wall 50a.
  • the second bending plate 612 is connected to the second side wall 50b and can define a cavity 40a close to the second side wall.
  • the cavity 40a of 50b; or the cavity 40a is formed between the first bending plate 611 and the second bending plate 612.
  • the first bending plate 611 and the second bending plate 612 both have a bending shape, and the first bending plate 611 and the second bending plate 612 can define a larger space of the cavity 40a, ensuring that The deformation space of the thermal management component 40 improves the space utilization inside the housing 50 .
  • the support assembly 62 includes first support ribs 621 and second support ribs 622.
  • the first support ribs 621 are respectively connected to the first bending plate 611 and the second side wall 50b; the second support ribs 622 are respectively connected to the first bending plate 611 and the second side wall 50b.
  • the second bending plate 612 is connected to the first side wall 50a.
  • the first support ribs 621 and the second support ribs 622 can be respectively located in the flow channel 40b, or can be used as the sides of the flow channel 40b, both of which can support the flow channel 40b.
  • the first support ribs 621 improve the first bending plate 611
  • the second support rib 622 improves the connection strength between the second bending plate 612 and the shell 50, and both the first support rib 621 and the second support rib 622 increase the strength of the flow channel 40b.
  • the first support ribs 621 and the second support ribs 622 can prevent the flow channel 40b from deforming, thereby ensuring that the internal volume of the flow channel 40b does not change and the heat exchange medium does not change. will overflow. At the same time, at the end of the battery's life cycle, it can prevent the flow channel 40b from being crushed and causing blockage and thermal performance failure.
  • FIG. 9 is an enlarged schematic view of B in FIG. 7 .
  • Both ends of the first bending plate 611 are connected to the first side wall 50a, and both ends of the second bending plate 612 are connected to the second side wall 50b; in the first direction
  • the bending plates 612 are arranged in a staggered manner, and a flow channel 40b is formed between the first support rib 621 and the second support rib 622 .
  • the first bending plate 611 is connected to the first side wall 50a to form a cavity 40a close to the first side wall 50a
  • the second bending plate 612 is connected to the second side wall 50b to form a cavity 40a close to the second side wall 50b.
  • the cavity 40a and the flow channel 40b are located between the two cavities 40a.
  • a plurality of flow channels 40b are arranged adjacently, and the first support ribs 621 and the second support ribs 622 jointly support the flow channels 40b, thereby improving the strength of the flow channels 40b.
  • the first side wall 50a and the second side wall 50b can be used to contact two adjacent battery cells 20 respectively, so that the positions of the first side wall 50a and the second side wall 50b corresponding to the cavity 40a can be deformed, Thermal management component 40 is capable of absorbing the expansion of both battery cells 20 simultaneously.
  • the first side wall 50 a and the second side wall 50 b are the side walls with the largest area of the housing 50 , and are respectively in contact with the side portions with the largest area of the battery cells 20 to improve the absorption of expansion of the battery cells 20 .
  • first bending plates 611 there are multiple first bending plates 611 , two adjacent first bending plates 611 are spaced apart by a preset distance, and the first side wall 50 a includes two adjacent first bending plates 611 .
  • the flow channel 40b can contact the battery cell 20 abutting the first side wall 50a, thereby improving the stability of the battery cell 20 abutting the first side wall 50a. contact area to increase heat transfer efficiency.
  • the second side wall 50 b includes two adjacent second bending plates 612 .
  • the flow channel 40b can contact the battery cell 20 abutting the second side wall 50b, thereby improving the stability of the battery cell 20 abutting the second side wall 50b. contact area to increase heat transfer efficiency.
  • the number of the first bending plates 611 is multiple, and two adjacent first bending plates 611 are separated by a preset distance, and the number of the second bending plates 612 is multiple.
  • the two adjacent second bending plates 612 are spaced apart by a preset distance, which can simultaneously improve the heat exchange of the battery cells 20 that are close to the first side wall 50a and the battery cells 20 that are close to the second side wall 50b. efficiency.
  • FIG. 10 is an enlarged schematic view of C in FIG. 8 .
  • Both ends of the first bending plate 611 are connected to the first side wall 50a to form a flow channel 40b close to the first side wall 50a; both ends of the second bending plate 612 are connected to the second side wall 50b to form a flow channel 40b close to the first side wall 50a.
  • the flow channel 40b of the second side wall 50b is an enlarged schematic view of C in FIG. 8 .
  • the flow channel 40b close to the first side wall 50a and the flow channel 40b close to the second side wall 50b may be arranged oppositely along the first direction X, that is, there are two flow channels 40b in the first direction X.
  • the first bending plate 611 and the second bending plate 612 enclose a rhombus-shaped cavity 40a.
  • the flow channel 40b close to the first side wall 50a is used to contact the battery cells 20 close to the first side wall 50a
  • the flow channel 40b close to the second side wall 50b is used to contact the battery cells 20 close to the second side wall 50b.
  • the battery cells 20 are in contact.
  • the two flow channels 40b can respectively contact the two adjacent battery cells 20, thereby increasing the heat exchange area of the thermal management component 40.
  • the first bending plate 611 and the second bending plate 612 are arranged oppositely; connect.
  • the first bending plate 611 and the second bending plate 612 can be in the shape of a triangle, and the flow channel 40b and the space are relatively large.
  • the bending point of the first bending plate 611 is away from the first side wall 50a, and the bending point of the second bending plate 612 is The folding point is away from the second side wall 50b, the two folding points are connected, and the structure is stable.
  • the first bending plate 611 and the second bending plate 612 may also be L-shaped, arc-shaped, or other shapes.
  • the bending portion of the first bending plate 611 and the bending portion of the second bending plate 612 are connected, which can enhance the strength of the partition assembly 61 .
  • FIG 11 is an enlarged schematic diagram of C in Figure 8.
  • the first bending plate 611 includes a first inclined section 611a and a second inclined section 611b that are connected to each other.
  • the first supporting ribs 621 are connected to the first inclined section 611a and the second inclined section 611b respectively.
  • the bending part of the first support rib 621 is connected to the first side wall 50a, and both ends are connected to the first inclined section 611a and the second inclined section 611b respectively, which improves the connection between the first bending plate 611 and the first side wall 50a.
  • the strength improves the strength of the flow channel 40b close to the first side wall 50a.
  • the first support rib 621 can be triangular and has a stable structure.
  • the first support rib 621 can also be set in an L-shaped or arc-shaped shape, or the first support rib 621 includes two separate sections, one section is connected to the first side wall 50a and the first inclined section 611a respectively. connected, and the other section is connected to the second side wall 50b and the second inclined section 611b respectively.
  • the second bending plate 612 includes a third inclined section 612a and a fourth inclined section 613b connected to each other, and the second support rib 622 is connected to the third inclined section 612a and the fourth inclined section 613b respectively.
  • the bending part of the second support rib 622 is connected to the second side wall 50b, and both ends are connected to the third inclined section 612a and the fourth inclined section 613b respectively, which improves the connection between the second bending plate 612 and the second side wall 50b.
  • the strength improves the strength of the flow channel 40b close to the second side wall 50b.
  • the second support rib 622 may be triangular and has a stable structure.
  • the second support rib 622 can also be configured in an L-shaped or arc-shaped shape, or the second support rib 622 includes two separate sections, one section is connected to the second side wall 50b and the third inclined section 612a respectively. connected, and the other section is connected to the second side wall 50b and the fourth inclined section 613b respectively.
  • the first bending plate 611 includes a first inclined section 611a and a second inclined section 611b that are connected to each other, and the first support rib 621 is connected to the first inclined section 611a and the second inclined section 611b respectively, and
  • the second bending plate 612 includes a third inclined section 612a and a fourth inclined section 613b that are connected to each other.
  • the second supporting ribs 622 are respectively connected to the third inclined section 612a and the fourth inclined section 613b.
  • the connection strength of the first bending plate 611 and the second bending plate 612 can be strengthened, and the strength of the flow channel 40b close to the first side wall 50a and the strength of the flow channel 40b close to the second side wall 50b can be improved.
  • Figure 12 is a side view of a thermal management component provided by some embodiments of the present application.
  • the partition assembly 61 includes a first partition 613 and a second partition 614.
  • the first partition 613 extends along the second direction Y
  • the second partition 614 extends along the first direction X. , first direction .
  • the second direction Y is the Y direction shown in FIG. 12, and the first direction X and the second direction Y can be arranged vertically, so that the flow channel 40b and the cavity 40a are rectangular.
  • the second partition 614 can support the first side wall 50a and the second side wall 50b, thereby improving the structural strength of the thermal management component 40.
  • the cavities 40a and the flow channels 40b are alternately arranged in the second direction Y.
  • the cavities 40a and flow channels 40b are alternately arranged, which can not only ensure the heat exchange efficiency of the battery cells 20, but also absorb the expansion of the battery cells 20 evenly.
  • the cavity 40a and the flow channel 40b are arranged adjacently, which improves the space utilization inside the housing 50. It is ensured that the flow channels 40b and the cavities 40a are evenly arranged alternately near the first side wall 50a to fully exchange heat for the battery cell 20 that is close to the first side wall 50a and to absorb the expansion force of the battery cell 20. . It is ensured that the flow channels 40b and the cavities 40a are evenly arranged alternately close to the second side wall 50b to fully exchange heat for the battery cell 20 that is close to the second side wall 50b and to absorb the expansion of the battery cell 20 force.
  • first support ribs 621 are connected to the first partition 613 and the first side wall 50a respectively, and the second support ribs 622 are connected to the first partition 613 and the second side wall 50b respectively.
  • the first support rib 621 is located in the flow channel 40b close to the first side wall 50a
  • the second support rib 622 is located in the flow channel 40b close to the second side wall 50b.
  • the first support ribs 621 and the second support ribs 622 respectively extend along the first direction The height is compressed to prevent the volume of the flow channel 40b from changing, ensuring the heat exchange effect on the battery cells 20 close to the first side wall 50a and the battery cells 20 close to the second side wall 50b.
  • the second embodiment of the present application provides a thermal management system, including the thermal management component 40 provided in any of the above embodiments, with multiple thermal management components 40 arranged at intervals.
  • the battery cell 20 is located between two adjacent thermal management components 40 such that both sides of each battery cell 20 are in contact with two thermal management components 40 respectively.
  • Multiple thermal management components 40 are connected through connecting pipes 70 to The connection between the various thermal management components 40 and the circulation of the heat exchange medium are realized.
  • a third embodiment of the present application provides a battery, including a battery cell 20 and the thermal management component 40 of any of the above embodiments.
  • the thermal management component 40 is configured to abut against the battery cell 20 .
  • a fourth embodiment of the present application provides an electrical device, including the above-mentioned battery, and the battery is used to provide electrical energy.
  • the present application provides a thermal management component 40, which includes a housing 50 and a support component 60.
  • the support component 60 is accommodated in the housing 50 and used to define separate flow channels 40b and 40b in the housing 50.
  • the cavity 40a and the flow channel 40b are used for the heat exchange medium to flow, and the cavity 40a is configured to be deformable when the shell 50 is pressurized.
  • the battery cells 20 are heated or cooled by the heat exchange medium in the flow channel 40b.
  • the casing 50 can deform when subjected to the force of the battery cells 20, preventing the casing 50 of the thermal management component 40 from having an excessive reaction on the battery cells 20, absorbing tolerances for the battery cells 20 in groups, and avoiding damage to the battery cells 20. Reduce the heat exchange area between the thermal management component 40 and the battery cell 20 to improve the cycle performance of the battery cell 20 .

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Abstract

Provided in the embodiments of the present application are a thermal management component, a thermal management system, a battery and an electric device. The thermal management component comprises a housing and a supporting component, wherein the supporting component is accommodated in the housing and used for defining, in the housing, a flow channel and a cavity, which are separately arranged; the flow channel is used for allowing a heat exchange medium to flow; and the cavity is configured to be deformable when the housing is pressed. When a battery cell inside a battery box swells during use, due to the cavity being provided inside the housing, the housing can deform when being subjected to an acting force of the battery cell, such that the housing of the thermal management component is prevented from exerting excessive reverse action on the battery cell, and tolerance is absorbed for battery cell grouping, thereby avoiding damage to the battery cell.

Description

热管理部件、热管理系统、电池及用电装置Thermal management components, thermal management systems, batteries and electrical devices 技术领域Technical field
本申请涉及电池技术领域,并且更具体地,涉及一种热管理部件、热管理系统、电池及用电装置。The present application relates to the field of battery technology, and more specifically, to a thermal management component, a thermal management system, a battery and an electrical device.
背景技术Background technique
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。At present, judging from the development of the market situation, the application of power batteries is becoming more and more extensive. 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.
在电池技术的发展中,如何提高电池的循环性能,是电池技术中一个重要的研究方向。In the development of battery technology, how to improve the cycle performance of batteries is an important research direction in battery technology.
发明内容Contents of the invention
本申请提供了一种热管理部件、热管理系统、电池及用电装置,其能改善电池的循环性能。This application provides a thermal management component, a thermal management system, a battery and an electrical device, which can improve the cycle performance of the battery.
第一方面,本申请实施例提供了一种热管理部件,包括外壳和支撑部件,支撑部件容纳于外壳内并用于在外壳内限定出分隔设置的流道和空腔,流道用于供换热介质流动,空腔被配置为在外壳受压时可变形。In a first aspect, embodiments of the present application provide a thermal management component, which includes a housing and a support component. The support component is accommodated in the housing and used to define flow channels and cavities that are separately arranged in the housing. The flow channels are used for supply and replacement. Thermal medium flows and the cavity is configured to deform when the housing is pressurized.
上述方案中,通过流道中的换热介质为电池单体进行加热或冷却,当电池箱内部的电池单体在使用过程中发生膨胀时,由于外壳的内部具有空腔,外壳受到电池单体的作用力时能够发生形变,防止热管理部件的外壳对电池单体的反作用过大,为电池单体成组吸收公差,避免损坏电池单体,降低热管理部件和电池单体热交换面积的减小幅度,改善电池单体的循环性能。In the above scheme, the heat exchange medium in the flow channel is used to heat or cool the battery cells. When the battery cells inside the battery box expand during use, since there is a cavity inside the shell, the shell is affected by the force of the battery cells. It can deform when a force is applied to prevent the outer shell of the thermal management component from having an excessive reaction on the battery cells, absorb tolerances for the battery cells in groups, avoid damaging the battery cells, and reduce the heat exchange area between the thermal management components and the battery cells. By a small margin, the cycle performance of the battery cells is improved.
在一些实施例中,支撑部件与外壳围合形成流道。In some embodiments, the support component and the housing are enclosed to form a flow channel.
上述方案中,外壳被配置为与电池单体直接接触,通过支撑部件与外壳共同围合形成流道,换热介质可通过外壳与电池单体接触,提高电池单体的换热效率。In the above solution, the casing is configured to be in direct contact with the battery cells, and the support component and the casing are jointly enclosed to form a flow channel. The heat exchange medium can contact the battery cells through the casing, thereby improving the heat exchange efficiency of the battery cells.
在一些实施例中,支撑部件包括分隔组件和支撑组件,分隔组件用于在外壳内限定出分隔设置的流道和空腔;支撑组件用于设置在流道内或者与分隔组件共同限定出流道,以对流道进行支撑。In some embodiments, the support component includes a separation component and a support component. The separation component is used to define separately arranged flow channels and cavities in the housing; the support component is used to be disposed in the flow channel or jointly define the flow channel with the separation component. , to support the flow channel.
上述方案中,通过分隔组件将外壳的内部分隔为流道和空腔,通过组件用于对流道进行支撑,提高了流道的强度,使得热管理部件在吸收膨胀以及公差时,流道内部的换热介质的流量不发生变化,防止换热介质溢出,在电池生命周期的末期,流道不会被压溃堵塞。In the above solution, the interior of the housing is divided into a flow channel and a cavity through a partition assembly, and the assembly is used to support the flow channel, which improves the strength of the flow channel, so that when the thermal management component absorbs expansion and tolerance, the internal structure of the flow channel is reduced. The flow rate of the heat exchange medium does not change, preventing the heat exchange medium from overflowing. At the end of the battery life cycle, the flow channel will not be crushed and blocked.
在一些实施例中,外壳包括第一侧壁和第二侧壁,第二侧壁沿第一方向与第一侧壁相对设置,分隔组件分别与第一侧壁和第二侧壁连接。In some embodiments, the housing includes a first side wall and a second side wall, the second side wall is arranged opposite to the first side wall along a first direction, and the partition assembly is connected to the first side wall and the second side wall respectively.
上述方案中,通过分隔组件分别与第一侧壁和第二侧壁连接,可加强第一侧壁和第二侧壁的连接强度。In the above solution, the connection strength of the first side wall and the second side wall can be enhanced by connecting the partition components to the first side wall and the second side wall respectively.
在一些实施例中,分隔组件包括第一弯折板和第二弯折板,第一弯折板与第一侧壁连接;第二弯折板与第二侧壁连接,第一弯折板和第二弯折板限定出空腔。In some embodiments, the partition assembly includes a first bending plate and a second bending plate. The first bending plate is connected to the first side wall; the second bending plate is connected to the second side wall. The first bending plate and the second bent plate define a cavity.
上述方案中,第一弯折板和第二弯折板限定出的空腔空间较大,保证了热管理部件的形变空间。In the above solution, the cavity space defined by the first bending plate and the second bending plate is large, ensuring the deformation space of the thermal management component.
在一些实施例中,支撑组件包括第一支撑筋和第二支撑筋,第一支撑筋分别与第一弯折板和第二侧壁连接;第二支撑筋分别与第二弯折板和第一侧壁连接。In some embodiments, the support assembly includes first support ribs and second support ribs, the first support ribs are respectively connected to the first bending plate and the second side wall; the second support ribs are respectively connected to the second bending plate and the second side wall. One side wall connection.
上述方案中,第一支撑筋提高了第一弯折板与外壳的连接强度,第二支撑筋提高了第二弯折板与外壳的连接强度。In the above solution, the first support rib increases the connection strength between the first bending plate and the shell, and the second support rib increases the connection strength between the second bending plate and the shell.
在一些实施例中,第一弯折板的两端与第一侧壁连接,第二弯折板的两端与第二侧壁连接;在第一方向上,第一弯折板和第二弯折板呈错位设置,第一支撑筋和第二支撑筋之间形成流道。In some embodiments, both ends of the first bending plate are connected to the first side wall, and both ends of the second bending plate are connected to the second side wall; in the first direction, the first bending plate and the second side wall are connected to each other. The bending plates are arranged in a staggered manner, and a flow channel is formed between the first support rib and the second support rib.
上述方案中,第一弯折板与第一侧壁连接,以形成靠近第一侧壁的 空腔,第二弯折板与第二侧壁连接,以形成靠近第二侧壁的空腔,流道位于两个空腔之间。第一侧壁和第二侧壁可分别用于与两个相邻的电池单体接触,使得两个热管理部件能够同时吸收两个电池单体的膨胀。In the above solution, the first bending plate is connected to the first side wall to form a cavity close to the first side wall, and the second bending plate is connected to the second side wall to form a cavity close to the second side wall. The flow channel is located between the two cavities. The first side wall and the second side wall can be used to contact two adjacent battery cells respectively, so that the two thermal management components can absorb the expansion of the two battery cells at the same time.
在一些实施例中,第一弯折板的数量为多个,相邻的两个第一弯折板之间间隔预设距离;和/或,第二弯折板的数量为多个,相邻的两个第二弯折板之间间隔预设距离。In some embodiments, the number of the first bending plates is multiple, and two adjacent first bending plates are separated by a preset distance; and/or the number of the second bending plates is multiple. There is a preset distance between two adjacent second bending plates.
上述方案中,提高了流道与电池单体的接触面积。In the above solution, the contact area between the flow channel and the battery cell is increased.
在一些实施例中,第一弯折板的两端与第一侧壁连接,以形成靠近第一侧壁的流道;第二弯折板的两端与第二侧壁连接,以形成靠近第二侧壁的流道。In some embodiments, two ends of the first bending plate are connected to the first side wall to form a flow channel close to the first side wall; two ends of the second bending plate are connected to the second side wall to form a flow channel close to the first side wall. The flow channel of the second side wall.
上述方案中,两个流道可分别与相邻的两个电池单体接触,提高了热管理部件的换热面积。In the above solution, the two flow channels can be in contact with two adjacent battery cells respectively, which increases the heat exchange area of the thermal management component.
在一些实施例中,在第一方向上,第一弯折板和第二弯折板相对设置;第一弯折板的弯折处与第二弯折板的弯折处连接。In some embodiments, in the first direction, the first bending plate and the second bending plate are arranged oppositely; the bending part of the first bending plate is connected to the bending part of the second bending plate.
上述方案中,第一弯折板弯折处和第二弯折板的弯折处连接,可加强分隔组件的强度。In the above solution, the bending part of the first bending plate is connected to the bending part of the second bending plate, which can enhance the strength of the partition assembly.
在一些实施例中,第一弯折板包括互相连接的第一倾斜段和第二倾斜段,第一支撑筋分别与第一倾斜段和第二倾斜段连接;和/或,第二弯折板包括互相连接的第三倾斜段和第四倾斜段,第二支撑筋分别与第三倾斜段和第四倾斜段连接。In some embodiments, the first bending plate includes a first inclined section and a second inclined section connected to each other, and the first support ribs are respectively connected to the first inclined section and the second inclined section; and/or, the second bending plate The board includes a third inclined section and a fourth inclined section connected to each other, and the second support ribs are connected to the third inclined section and the fourth inclined section respectively.
上述方案中,能够加强第一弯折板和/或第二弯折板的连接强度,以及提高了靠近第一侧壁的流道的强度和/或靠近第二侧壁的流道的强度。In the above solution, the connection strength of the first bending plate and/or the second bending plate can be strengthened, and the strength of the flow channel close to the first side wall and/or the strength of the flow channel close to the second side wall can be improved.
在一些实施例中,分隔组件包括第一隔板和第二隔板,第一隔板沿第二方向延伸,第二隔板沿第一方向延伸,第一方向和第二方向相交设置,第二隔板分别与第一侧壁和第二侧壁连接,以将外壳内限定出分隔设置的流道和空腔。In some embodiments, the partition assembly includes a first partition and a second partition, the first partition extends along the second direction, the second partition extends along the first direction, the first direction and the second direction intersect, and the first partition extends along the second direction. The two partitions are respectively connected to the first side wall and the second side wall to define separate flow channels and cavities in the housing.
上述方案中,第二隔板能够支撑第一侧壁和第二侧壁,提高了热管理部件的结构强度。In the above solution, the second partition can support the first side wall and the second side wall, which improves the structural strength of the thermal management component.
在一些实施例中,在第二方向上,空腔和流道呈交替设置。In some embodiments, in the second direction, the cavities and flow channels are arranged alternately.
上述方案中,空腔和流道交替设置,既能保证电池单体的换热效率,又能均匀吸收电池单体的膨胀。In the above scheme, the cavities and flow channels are arranged alternately, which can not only ensure the heat exchange efficiency of the battery cells, but also absorb the expansion of the battery cells evenly.
在一些实施例中,在第一方向上,空腔和流道相邻设置。In some embodiments, the cavity and the flow channel are disposed adjacently in the first direction.
上述方案中,提高了外壳内部的空间利用率。In the above solution, the space utilization inside the shell is improved.
在一些实施例中,第一支撑筋分别与第一隔板和第一侧壁连接,第二支撑筋分别与第一隔板和第二侧壁连接。In some embodiments, the first support ribs are connected to the first partition and the first side wall respectively, and the second support ribs are connected to the first partition and the second side wall respectively.
上述方案中,第一支撑筋和第二支撑筋分别沿第一方向延伸,第一侧壁和第二侧壁受到电池单体的膨胀挤压时,能够避免流道的流量发生变化In the above solution, the first support rib and the second support rib respectively extend along the first direction. When the first side wall and the second side wall are expanded and squeezed by the battery cells, the flow rate of the flow channel can be prevented from changing.
本申请第二方面的实施例提供一种热管理系统,包括上述任一实施方式提供的热管理部件,多个热管理部件间隔设置。A second embodiment of the present application provides a thermal management system, including the thermal management component provided in any of the above embodiments, with multiple thermal management components arranged at intervals.
本申请第三方面的实施例提供一种电池,包括电池单体和上述热管理部件,热管理部件被配置为贴靠于电池单体。A third embodiment of the present application provides a battery, including a battery cell and the above-mentioned thermal management component, and the thermal management component is configured to be close to the battery cell.
本申请第四方面的实施例提供一种用电装置,包括上述电池,电池用于提供电能。A fourth embodiment of the present application provides an electrical device, including the above-mentioned battery, and the battery is used to provide electrical energy.
附图说明Description of the drawings
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,显而易见地,下面所描述的附图仅仅是本申请的一些实施例,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,还可以根据附图获得其他的附图。In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on the drawings without exerting creative efforts.
图1为本申请一些实施例提供的车辆的结构示意图;Figure 1 is a schematic structural diagram of a vehicle provided by some embodiments of the present application;
图2为本申请一些实施例提供的电池的爆炸示意图;Figure 2 is an exploded schematic diagram of a battery provided by some embodiments of the present application;
图3为本申请一些实施例提供的热管理部件的结构示意图;Figure 3 is a schematic structural diagram of a thermal management component provided by some embodiments of the present application;
图4为图3的A处放大示意图;Figure 4 is an enlarged schematic diagram of point A in Figure 3;
图5为本申请一些实施例提供的热管理系统的结构示意图;Figure 5 is a schematic structural diagram of a thermal management system provided by some embodiments of the present application;
图6为图3所示的热管理部件另一角度的结构示意图;Figure 6 is a schematic structural diagram of the thermal management component shown in Figure 3 from another angle;
图7为本申请一些实施例提供的热管理部件的侧视图;Figure 7 is a side view of a thermal management component provided by some embodiments of the present application;
图8为本申请另一些实施例提供的热管理部件的侧视图;Figure 8 is a side view of a thermal management component provided by other embodiments of the present application;
图9为图7的B处放大示意图;Figure 9 is an enlarged schematic diagram of B in Figure 7;
图10和图11为图8的C处放大示意图;Figures 10 and 11 are enlarged schematic views of C in Figure 8;
图12为本申请又一些实施例提供的热管理部件的侧视图。Figure 12 is a side view of a thermal management component provided by some embodiments of the present application.
在附图中,附图并未按照实际的比例绘制。In the drawings, the drawings are not drawn to actual scale.
具体实施方式Detailed ways
为使本申请实施例的目的、技术方案和优点更加清楚,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are Apply for some of the embodiments, not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.
除非另有定义,本申请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;本申请中在申请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。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象,而不是用于描述特定顺序或主次关系。Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the technical field of this application; the terms used in the specification of this application are only for describing specific implementations. The purpose of the examples is not intended to limit the application; the terms "including" and "having" and any variations thereof in the description and claims of the application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or priority relationship.
在本申请中提及“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。Reference in this application to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the 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.
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“附接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;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。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中的具体含义。In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection" and "attachment" should be understood in a broad sense. For example, it can be a fixed connection, It can also be detachably connected or integrally connected; it can be directly connected or indirectly connected through an intermediate medium; it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
本申请中术语“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,本申请中字符“/”,一般表示前后关联对象是一种“或”的关系。The term "and/or" in this application is just an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, alone There are three situations B. In addition, the character "/" in this application generally indicates that the related objects are an "or" relationship.
在本申请的实施例中,相同的附图标记表示相同的部件,并且为了简洁,在不同实施例中,省略对相同部件的详细说明。应理解,附图示出的本申请实施例中的各种部件的厚度、长宽等尺寸,以及集成装置的整体厚度、长宽等尺寸仅为示例性说明,而不应对本申请构成任何限定。In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of simplicity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length and width of the integrated device, are only illustrative illustrations and should not constitute any limitation to the present application. .
本申请中出现的“多个”指的是两个以上(包括两个)。"Plural" appearing in this application means two or more (including two).
本申请中,电池单体可以包括锂离子二次电池单体、锂离子一次电池单体、锂硫电池单体、钠锂离子电池单体、钠离子电池单体或镁离子电池单体等,本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等,本申请实施例对此也不限定。In this application, battery cells may include lithium ion secondary battery cells, lithium ion primary battery cells, lithium sulfur battery cells, sodium lithium ion battery cells, sodium ion battery cells or magnesium ion battery cells, etc., The embodiments of the present application are not limited to this. The battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this.
本申请中,电池单体可以包括锂离子二次电池单体、锂离子一次电池单体、锂硫电池单体、钠锂离子电池单体、钠离子电池单体或镁离子电池单体等,本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等,本申请实施例对此也不限定。电池单体一般按封装的方式分成三种:柱形电池单体、方体方形电池单体和软包电池单体,本申请实施例对此也不限定。In this application, battery cells may include lithium ion secondary battery cells, lithium ion primary battery cells, lithium sulfur battery cells, sodium lithium ion battery cells, sodium ion battery cells or magnesium ion battery cells, etc., The embodiments of the present application are not limited to this. The battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this. Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, rectangular battery cells and soft-pack battery cells, and the embodiments of the present application are not limited to this.
本申请的实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如,本申请中所提到的电池可以包括电池模块或电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。The battery mentioned in the embodiments of this application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. Batteries generally include a box for packaging one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
电池单体包括电极组件和电解液,电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层,正极活性物质层涂覆于正极集流体的表面,未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体,未涂敷正极活性物质层的集流体层叠后作为正极极耳。以锂离子电池为例,正极集流体的材料可以为铝,正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层, 负极活性物质层涂覆于负极集流体的表面,未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体,未涂敷负极活性物质层的集流体层叠后作为负极极耳。负极集流体的材料可以为铜,负极活性物质可以为碳或硅等。隔离膜的材质可以为PP(polypropylene,聚丙烯)或PE(polyethylene,聚乙烯)等。此外,电极组件可以是卷绕式结构,也可以是叠片式结构,本申请实施例并不限于此。The battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of a positive electrode sheet, a negative electrode sheet and a separator. Battery cells mainly rely on the movement of metal ions between the positive and negative electrodes to work. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode current collector. The current collector that is not coated with the positive electrode active material layer protrudes from the current collector that is coated with the positive electrode active material layer. The current collector coated with the positive electrode active material layer is laminated to form a positive electrode tab. Taking lithium-ion batteries as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganate, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The current collector that is not coated with the negative electrode active material layer protrudes from the current collector that is coated with the negative electrode active material layer. The current collector coated with the negative electrode active material layer is laminated to serve as the negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon. The material of the isolation film can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc. In addition, the electrode assembly may have a rolled structure or a laminated structure, and the embodiments of the present application are not limited thereto.
本申请实施例公开的电池单体可以但不限用于车辆、船舶或飞行器等用电装置中。可以使用具备本申请公开的电池单体、电池等组成该用电装置的电源系统,这样,有利于提升电池性能的稳定性和电池寿命。The battery cells disclosed in the embodiments of the present application can be used in, but are not limited to, electrical devices such as vehicles, ships, or aircrafts. The power supply system of the electrical device can be composed of battery cells, batteries, etc. disclosed in this application, which is beneficial to improving the stability of battery performance and battery life.
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,都会导致电池的循环性能下降,甚至引起其使用寿命缩短。为了保证新能源汽车安全、性能稳定、优异地运行,必须对电池进行有效的热管理,控制电池始终工作在合适的温度范围内。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 battery will decrease and even its service life will be shortened. In order to ensure the safety, stable performance and excellent operation of new energy vehicles, effective thermal management of the battery must be carried out to control the battery to always operate within a suitable temperature range.
发明人在电池内设置热管理部件,热管理部件可用于与电池的电池单体进行换热,以对电池进行有效的热管理,使电池单体工作在合适的温度范围内。The inventor installed a thermal management component in the battery. The thermal management component can be used to exchange heat with the battery cells to effectively manage the heat of the battery and make the battery cells operate within a suitable temperature range.
发明人发现,在充放电的过程中,电池的电池单体容易出现膨胀,由于热管理部件无法发生形变,导致热管理部件无法吸收膨胀公差,对热管理部件产生较大的反作用力,易损坏电池单体,而且电池单体与热管理部件的导热面积减小,使得热交换效率降低,影响电池单体的循环寿命。The inventor found that during the process of charging and discharging, the battery cells are prone to expansion. Since the thermal management components cannot deform, the thermal management components cannot absorb the expansion tolerance, causing a large reaction force on the thermal management components, which is easily damaged. The thermal conductivity area of the battery cell and the thermal management component is reduced, which reduces the heat exchange efficiency and affects the cycle life of the battery cell.
为了解决热管理部件无法吸收电池单体的膨胀公差的问题,发明人经过深入研究,设计了一种热管理部件,包括外壳和支撑部件,支撑部件容纳于外壳内并用于在外壳内限定出分隔设置的流道和空腔,流道用于供换热介质流动,空腔被配置为在外壳受压时可变形。上述方案中,通过流道中的换热介质为电池单体进行加热或冷却,当电池箱内部的电池单体在使用过程中发生膨胀时,由于外壳的内部具有空腔,外壳受到电池单体的作用力时能够发生形变,防止热管理部件的外壳对电池单体的反作用过大,为电池单体成组吸收公差,避免损坏电池单体,降低热管理部件和电池单体热交换面积的减小幅度,改善电池单体的循环性能。In order to solve the problem that the thermal management component cannot absorb the expansion tolerance of the battery cells, the inventor, after in-depth research, designed a thermal management component, which includes a casing and a supporting component. The supporting component is accommodated in the casing and used to define partitions in the casing. A flow channel and a cavity are provided, the flow channel is used for the heat exchange medium to flow, and the cavity is configured to be deformable when the shell is pressurized. In the above scheme, the heat exchange medium in the flow channel is used to heat or cool the battery cells. When the battery cells inside the battery box expand during use, since there is a cavity inside the shell, the shell is affected by the force of the battery cells. It can deform when a force is applied to prevent the outer shell of the thermal management component from having an excessive reaction on the battery cells, absorb tolerances for the battery cells in groups, avoid damaging the battery cells, and reduce the heat exchange area between the thermal management components and the battery cells. By a small margin, the cycle performance of the battery cells is improved.
本申请实施例公开的电池单体可以但不限用于车辆、船舶或飞行器等用电装置中。可以使用具备本申请公开的电池单体、电池等组成该用电装置的电源系统,这样,有利于提升电池性能的稳定性和电池寿命。The battery cells disclosed in the embodiments of the present application can be used in, but are not limited to, electrical devices such as vehicles, ships, or aircrafts. The power supply system of the electrical device can be composed of battery cells, batteries, etc. disclosed in this application, which is beneficial to improving the stability of battery performance and battery life.
本申请实施例提供一种使用电池作为电源的用电装置,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。Embodiments of the present application provide an electrical device that uses a battery as a power source. The electrical device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc. Among them, electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, spaceships, etc.
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。For the convenience of explanation in the following embodiments, an electric device 1000 according to an embodiment of the present application is used as an example.
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。Please refer to FIG. 1 , which 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 .
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。In some embodiments of the present application, 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 .
请参照图2,图2为本申请一些实施例提供的电池100的爆炸图。电池100包括电池箱和电池单体20。在一些实施例中,电池箱可以包括上盖10和箱体30,上盖10与箱体30相互盖合,上盖10和箱体30共同限定出用于容纳电池单体20的容纳腔。箱体30可以为一端开口的空心结构,上盖10可以为板状结构,上盖10盖合于箱体30的开口侧,以使上盖10与箱体30共同限定出容纳腔;上盖10和箱体30也可以是均为一侧开口的空心结构,上盖10的开口侧盖合于箱体30的开口侧。当然,上盖10和箱体30形成的电池箱可以是多种形状,比如,圆柱体、长方体等。Please refer to FIG. 2 , which is an exploded view of the battery 100 provided by some embodiments of the present application. The battery 100 includes a battery box and battery cells 20 . In some embodiments, the battery box may include an upper cover 10 and a box body 30 . The upper cover 10 and the box body 30 cover each other. The upper cover 10 and the box body 30 jointly define an accommodation cavity for accommodating the battery cells 20 . The box 30 can be a hollow structure with one end open, and the upper cover 10 can be a plate-like structure. The upper cover 10 is closed on the open side of the box 30 so that the upper cover 10 and the box 30 jointly define a containing cavity; the upper cover 10 can be a plate-shaped structure. 10 and the box body 30 can also be hollow structures with one side open, and the open side of the upper cover 10 is closed with the open side of the box body 30 . Of course, the battery box formed by the upper cover 10 and the box body 30 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.
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,并容纳于箱体内。电池100还可以包括其他结构,例如,该电池100还可以包括汇流部件,用于实现多个电池单体20之间的电连接。In 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. Multiple battery cells 20 can be directly connected in series, in parallel, or mixed together, and then the whole composed of multiple battery cells 20 can be accommodated in the box; of course, the battery 100 can also have multiple battery cells 20 connected in series first. They can be connected in parallel or mixed to form a battery module, and multiple battery modules can be connected in series, parallel or mixed to form a whole, and be accommodated in the box. The battery 100 may also include other structures. For example, the battery 100 may further include a bus component for realizing electrical connections between multiple battery cells 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。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.
如图3和图4所示,图3为本申请一些实施例提供的热管理部件的结构示意图;图4为图3的A处放大示意图。第一方面,本申请实施例提供了一种热管理部件40,包括外壳50和支撑部件60,支撑部件60容纳于外壳50内并用于在外壳50内限定出分隔设置的流道40b和空腔40a,流道40b用于供换热介质流动,空腔40a被配置为在外壳50受压时可变形。As shown in Figures 3 and 4, Figure 3 is a schematic structural diagram of a thermal management component provided by some embodiments of the present application; Figure 4 is an enlarged schematic diagram of point A in Figure 3. In a first aspect, embodiments of the present application provide a thermal management component 40, which includes a housing 50 and a support component 60. The support component 60 is accommodated in the housing 50 and used to define separate flow channels 40b and cavities in the housing 50. 40a, the flow channel 40b is used for the flow of heat exchange medium, and the cavity 40a is configured to be deformable when the shell 50 is pressurized.
换热介质可以为水、乙二醇等液体,流道40b中的换热介质的温度可以调节,当电池单体20的温度过高时,热管理部件40能够为电池单体降温;当电池单体的温度过低时,热管理部件40能够为电池单体20保温,提高电池的使用寿命。热管理部件40可设置在电池箱的底部或侧部,以与电池单体20充分接触,或者如图5所示设置在相邻的两个电池单体20之间,图5为本申请一些实施例提供的热管理系统的结构示意图;热管理部件与电池单体20面积最大的侧部接触,以提高电池的换热效率。电池单体20位于相邻的两个热管理部件40之间,使得每个电池单体20的两侧分别与两个热管理部件40接触,多个热管理部件40通过连接管70连接,以实现各个热管理部件40之间的连接,以及换热介质的循环。The heat exchange medium can be water, ethylene glycol and other liquids, and the temperature of the heat exchange medium in the flow channel 40b can be adjusted. When the temperature of the battery cell 20 is too high, the thermal management component 40 can cool down the battery cell; When the temperature of the cell is too low, the thermal management component 40 can keep the battery cell 20 warm and extend the service life of the battery. The thermal management component 40 can be disposed at the bottom or side of the battery box to fully contact the battery cells 20, or it can be disposed between two adjacent battery cells 20 as shown in Figure 5. Figure 5 shows some examples of this application. The embodiment provides a schematic structural diagram of the thermal management system; the thermal management component is in contact with the side with the largest area of the battery cell 20 to improve the heat exchange efficiency of the battery. The battery cell 20 is located between two adjacent thermal management components 40 such that both sides of each battery cell 20 are in contact with two thermal management components 40 respectively. Multiple thermal management components 40 are connected through connecting pipes 70 to The connection between the various thermal management components 40 and the circulation of the heat exchange medium are realized.
流道40b的两端为开口设计,可供换热介质流动,换热介质使得流道40b具有一定强度,一般不会被压缩变形。空腔40a的两端为封口设计,换热介质不会进入空腔40a内,空腔40a体积占比10%-90%,因此容易发 生形变。外壳50和支撑部件60可采用同一种材料通过一体成型的工艺制备,外壳50也可以采用相比支撑部件60弹性更大的材料制备,以便于外壳50受到电池单体20膨胀作用力时,空腔40a能够变形。Both ends of the flow channel 40b are designed with openings for the flow of heat exchange medium. The heat exchange medium makes the flow channel 40b have a certain strength and generally will not be compressed and deformed. Both ends of the cavity 40a are designed to be sealed so that the heat exchange medium will not enter the cavity 40a. The volume of the cavity 40a accounts for 10%-90%, so it is prone to deformation. The casing 50 and the supporting member 60 can be made of the same material through an integrated molding process. The casing 50 can also be made of a material with greater elasticity than the supporting member 60 , so that when the casing 50 is subjected to the expansion force of the battery cell 20 , the casing 50 can be hollowed out. Cavity 40a is deformable.
上述方案中,通过流道40b中的换热介质为电池单体20进行加热或冷却,当电池箱内部的电池单体20在使用过程中发生膨胀时,由于外壳50的内部具有空腔40a,外壳50受到电池单体20的作用力时能够发生形变,防止热管理部件40的外壳50对电池单体20的反作用过大,为电池单体20成组吸收公差,避免损坏电池单体20,降低热管理部件40和电池单体20热交换面积的减小幅度,改善电池单体20的循环性能。In the above solution, the battery cells 20 are heated or cooled by the heat exchange medium in the flow channel 40b. When the battery cells 20 inside the battery box expand during use, since there is a cavity 40a inside the casing 50, The casing 50 can deform when subjected to the force of the battery cells 20, preventing the casing 50 of the thermal management component 40 from having an excessive reaction on the battery cells 20, absorbing tolerances for the battery cells 20 in groups, and avoiding damage to the battery cells 20. Reduce the heat exchange area between the thermal management component 40 and the battery cell 20 to improve the cycle performance of the battery cell 20 .
在一些实施例中,支撑部件60与外壳50围合形成流道40b。支撑部件60可与外壳50连接形成流道40b,流道40b的数量可为多个,多个流道40b相邻或间隔设置,以对电池单体20进行充分地换热。In some embodiments, the support component 60 and the housing 50 are enclosed to form a flow channel 40b. The support member 60 can be connected with the casing 50 to form a flow channel 40b. The number of the flow channels 40b can be multiple. The multiple flow channels 40b are adjacent or spaced apart to fully exchange heat for the battery cells 20.
上述方案中,外壳50被配置为与电池单体20直接接触,通过支撑部件60与外壳50共同围合形成流道40b,换热介质可通过外壳50与电池单体20接触,提高电池单体20的换热效率。In the above solution, the casing 50 is configured to be in direct contact with the battery cells 20, and the support member 60 and the casing 50 are jointly enclosed to form a flow channel 40b. The heat exchange medium can contact the battery cells 20 through the casing 50, thereby improving the efficiency of the battery cells. Heat transfer efficiency of 20%.
如图6所示,图6为图3所示的热管理部件另一角度的结构示意图。支撑部件60包括分隔组件61和支撑组件62,分隔组件61用于在外壳50内限定出分隔设置的流道40b和空腔40a;支撑组件62用于设置在流道40b内或者与分隔组件61共同限定出流道40b,以对流道40b进行支撑。As shown in FIG. 6 , FIG. 6 is a schematic structural diagram of the thermal management component shown in FIG. 3 from another angle. The support component 60 includes a partition component 61 and a support component 62. The partition component 61 is used to define a flow channel 40b and a cavity 40a arranged separately in the housing 50; the support component 62 is used to be arranged in the flow channel 40b or with the partition component 61. Together, the flow channel 40b is defined to support the flow channel 40b.
分隔组件61与支撑组件62连接,且分别与外壳50连接,以限定出流道40b和空腔40a。支撑组件62可设置在流道40b的内部,对流道40b进行支撑,或者支撑组件62作为流道40b的侧边,与外壳50、分隔组件61连接,围合形成流道40b,也能够实现对流道40b支撑。The partition component 61 is connected to the support component 62 and is respectively connected to the housing 50 to define the flow channel 40b and the cavity 40a. The support component 62 can be disposed inside the flow channel 40b to support the flow channel 40b, or the support component 62 can be used as a side of the flow channel 40b, connected to the shell 50 and the partition component 61, and enclosed to form the flow channel 40b, which can also achieve convection. Road 40b supports.
上述方案中,通过分隔组件61将外壳50的内部分隔为流道40b和空腔40a,通过支撑组件62对流道40b进行支撑,提高了流道40b的强度,使得热管理部件40在吸收膨胀以及公差时,避免流道40b内部的容积减小,流道40b内部的换热介质的流量发生变化,防止换热介质溢出,在电池生命周期的末期,流道40b不会被压溃堵塞。In the above solution, the interior of the housing 50 is divided into the flow channel 40b and the cavity 40a through the partition assembly 61, and the flow channel 40b is supported through the support assembly 62, thereby improving the strength of the flow channel 40b, so that the thermal management component 40 absorbs expansion and When the tolerance is set, the volume inside the flow channel 40b is prevented from being reduced, the flow rate of the heat exchange medium inside the flow channel 40b is changed, and the heat exchange medium is prevented from overflowing. At the end of the battery life cycle, the flow channel 40b will not be crushed and blocked.
外壳50包括第一侧壁50a和第二侧壁50b,第二侧壁50b沿第一方 向X与第一侧壁50a相对设置,分隔组件61分别与第一侧壁50a和第二侧壁50b连接。The housing 50 includes a first side wall 50a and a second side wall 50b. The second side wall 50b is arranged opposite to the first side wall 50a along the first direction X. The partition assembly 61 is respectively connected with the first side wall 50a and the second side wall 50b. connect.
第一方向X为如图6所示的X方向,可以为热管理部件40的厚度方向。第一侧壁50a和第二侧壁50b可被配置为热管理部件40面积最大的侧壁,热管理部件40可设置在电池箱的底部或侧部,第一侧壁50a或第二侧壁50b与电池单体20接触,以对电池单体20进行充分换热;热管理部件40还可以设置在相邻的两个电池单体20之间,第一侧壁50a和第二侧壁50b分别与相邻的两个电池单体20接触,以能够对不同的电池单体20进行换热,提高电池的换热效率。The first direction X is the X direction as shown in FIG. 6 , and may be the thickness direction of the thermal management component 40 . The first side wall 50a and the second side wall 50b can be configured as the side walls with the largest area of the thermal management component 40, and the thermal management component 40 can be disposed at the bottom or side of the battery box, the first side wall 50a or the second side wall 50b is in contact with the battery cell 20 to fully exchange heat with the battery cell 20; the thermal management component 40 can also be disposed between two adjacent battery cells 20, the first side wall 50a and the second side wall 50b They are respectively in contact with two adjacent battery cells 20 to exchange heat with different battery cells 20 and improve the heat exchange efficiency of the battery.
上述方案中,通过分隔组件61分别与第一侧壁50a和第二侧壁50b连接,可加强第一侧壁50a和第二侧壁50b的连接强度,提高热管理部件40的整体强度。In the above solution, by connecting the partition components 61 to the first side wall 50a and the second side wall 50b respectively, the connection strength of the first side wall 50a and the second side wall 50b can be strengthened, and the overall strength of the thermal management component 40 can be improved.
如图7和图8所示,图7为本申请一些实施例提供的热管理部件的侧视图;图8为本申请另一些实施例提供的热管理部件的侧视图。分隔组件61包括第一弯折板611和第二弯折板612,第一弯折板611与第一侧壁50a连接;第二弯折板612与第二侧壁50b连接,第一弯折板611和第二弯折板612限定出空腔40a。As shown in Figures 7 and 8, Figure 7 is a side view of a thermal management component provided by some embodiments of the present application; Figure 8 is a side view of a thermal management component provided by other embodiments of the present application. The partition assembly 61 includes a first bending plate 611 and a second bending plate 612. The first bending plate 611 is connected to the first side wall 50a; the second bending plate 612 is connected to the second side wall 50b. The plate 611 and the second bent plate 612 define the cavity 40a.
第一弯折板611与第一侧壁50a连接,可限定出靠近第一侧壁50a的空腔40a,第二弯折板612与第二侧壁50b连接,可限定出靠近第二侧壁50b的空腔40a;或者空腔40a形成于第一弯折板611和第二弯折板612之间。The first bending plate 611 is connected to the first side wall 50a and can define a cavity 40a close to the first side wall 50a. The second bending plate 612 is connected to the second side wall 50b and can define a cavity 40a close to the second side wall. The cavity 40a of 50b; or the cavity 40a is formed between the first bending plate 611 and the second bending plate 612.
上述方案中,第一弯折板611和第二弯折板612均具有弯折形状,第一弯折板611和第二弯折板612能够限定出的空间较大的空腔40a,保证了热管理部件40的形变空间,提高了外壳50内部的空间利用率。In the above solution, the first bending plate 611 and the second bending plate 612 both have a bending shape, and the first bending plate 611 and the second bending plate 612 can define a larger space of the cavity 40a, ensuring that The deformation space of the thermal management component 40 improves the space utilization inside the housing 50 .
在一些实施例中,支撑组件62包括第一支撑筋621和第二支撑筋622,第一支撑筋621分别与第一弯折板611和第二侧壁50b连接;第二支撑筋622分别与第二弯折板612和第一侧壁50a连接。In some embodiments, the support assembly 62 includes first support ribs 621 and second support ribs 622. The first support ribs 621 are respectively connected to the first bending plate 611 and the second side wall 50b; the second support ribs 622 are respectively connected to the first bending plate 611 and the second side wall 50b. The second bending plate 612 is connected to the first side wall 50a.
第一支撑筋621和第二支撑筋622可以分别位于流道40b内,也可以作为流道40b的侧边,都可以对流道40b进行支撑,第一支撑筋621提 高了第一弯折板611与外壳50的连接强度,第二支撑筋622提高了第二弯折板612与外壳50的连接强度,而且第一支撑筋621和第二支撑筋622均提高了流道40b的强度,当热管理部件40受电池单体20的膨胀力被压缩时,第一支撑筋621和第二支撑筋622可以是的流道40b不变形,从而保证流道40b内部容积不发生变化,换热介质不会溢出,同时在电池的生命周期末期,能够防止流道40b被压溃导致堵塞,热性能失效。The first support ribs 621 and the second support ribs 622 can be respectively located in the flow channel 40b, or can be used as the sides of the flow channel 40b, both of which can support the flow channel 40b. The first support ribs 621 improve the first bending plate 611 The second support rib 622 improves the connection strength between the second bending plate 612 and the shell 50, and both the first support rib 621 and the second support rib 622 increase the strength of the flow channel 40b. When the heat is When the management component 40 is compressed by the expansion force of the battery cell 20, the first support ribs 621 and the second support ribs 622 can prevent the flow channel 40b from deforming, thereby ensuring that the internal volume of the flow channel 40b does not change and the heat exchange medium does not change. will overflow. At the same time, at the end of the battery's life cycle, it can prevent the flow channel 40b from being crushed and causing blockage and thermal performance failure.
在如图9所示的实施例中,图9为图7的B处放大示意图。第一弯折板611的两端与第一侧壁50a连接,第二弯折板612的两端与第二侧壁50b连接;在第一方向X上,第一弯折板611和第二弯折板612呈错位设置,第一支撑筋621和第二支撑筋622之间形成流道40b。In the embodiment shown in FIG. 9 , FIG. 9 is an enlarged schematic view of B in FIG. 7 . Both ends of the first bending plate 611 are connected to the first side wall 50a, and both ends of the second bending plate 612 are connected to the second side wall 50b; in the first direction The bending plates 612 are arranged in a staggered manner, and a flow channel 40b is formed between the first support rib 621 and the second support rib 622 .
第一弯折板611与第一侧壁50a连接,以形成靠近第一侧壁50a的空腔40a,第二弯折板612与第二侧壁50b连接,以形成靠近第二侧壁50b的空腔40a,流道40b位于两个空腔40a之间。多个流道40b相邻设置,第一支撑筋621和第二支撑筋622共同对流道40b进行支撑,提高了流道40b的强度。第一侧壁50a和第二侧壁50b可分别用于与两个相邻的电池单体20接触,使得第一侧壁50a和第二侧壁50b对应空腔40a的位置均能够发生形变,热管理部件40能够同时吸收两个电池单体20的膨胀。第一侧壁50a和第二侧壁50b为外壳50面积最大的侧壁,分别与电池单体20的面积最大的侧部接触,以提高对电池单体20膨胀的吸收力。The first bending plate 611 is connected to the first side wall 50a to form a cavity 40a close to the first side wall 50a, and the second bending plate 612 is connected to the second side wall 50b to form a cavity 40a close to the second side wall 50b. The cavity 40a and the flow channel 40b are located between the two cavities 40a. A plurality of flow channels 40b are arranged adjacently, and the first support ribs 621 and the second support ribs 622 jointly support the flow channels 40b, thereby improving the strength of the flow channels 40b. The first side wall 50a and the second side wall 50b can be used to contact two adjacent battery cells 20 respectively, so that the positions of the first side wall 50a and the second side wall 50b corresponding to the cavity 40a can be deformed, Thermal management component 40 is capable of absorbing the expansion of both battery cells 20 simultaneously. The first side wall 50 a and the second side wall 50 b are the side walls with the largest area of the housing 50 , and are respectively in contact with the side portions with the largest area of the battery cells 20 to improve the absorption of expansion of the battery cells 20 .
在一些实施例中,第一弯折板611的数量为多个,相邻的两个第一弯折板611之间间隔预设距离,第一侧壁50a包括相邻两个第一弯折板611之间的第一间隔L1,流道40b通过第一间隔L1能够与贴靠于第一侧壁50a的电池单体20接触,提高贴靠于第一侧壁50a的电池单体20的接触面积,增大换热效率。In some embodiments, there are multiple first bending plates 611 , two adjacent first bending plates 611 are spaced apart by a preset distance, and the first side wall 50 a includes two adjacent first bending plates 611 . Through the first interval L1 between the plates 611, the flow channel 40b can contact the battery cell 20 abutting the first side wall 50a, thereby improving the stability of the battery cell 20 abutting the first side wall 50a. contact area to increase heat transfer efficiency.
在一些实施例中,第二弯折板612的数量为多个,相邻的两个第二弯折板612之间间隔预设距离,第二侧壁50b包括相邻两个第二弯折板612之间的第二间隔L2,流道40b通过第二间隔L2能够与贴靠于第二侧壁50b的电池单体20接触,提高贴靠于第二侧壁50b的电池单体20的接触面积,增大换热效率。In some embodiments, there are multiple second bending plates 612 , two adjacent second bending plates 612 are spaced apart by a preset distance, and the second side wall 50 b includes two adjacent second bending plates 612 . Through the second interval L2 between the plates 612, the flow channel 40b can contact the battery cell 20 abutting the second side wall 50b, thereby improving the stability of the battery cell 20 abutting the second side wall 50b. contact area to increase heat transfer efficiency.
在另一些实施例中,第一弯折板611的数量为多个,相邻的两个第一弯折板611之间间隔预设距离,第二弯折板612的数量为多个,相邻的两个第二弯折板612之间间隔预设距离,能同时提高贴靠于第一侧壁50a的电池单体20以及贴靠于第二侧壁50b的电池单体20的换热效率。In other embodiments, the number of the first bending plates 611 is multiple, and two adjacent first bending plates 611 are separated by a preset distance, and the number of the second bending plates 612 is multiple. The two adjacent second bending plates 612 are spaced apart by a preset distance, which can simultaneously improve the heat exchange of the battery cells 20 that are close to the first side wall 50a and the battery cells 20 that are close to the second side wall 50b. efficiency.
在如图10所示的实施例中,图10为图8的C处放大示意图。第一弯折板611的两端与第一侧壁50a连接,以形成靠近第一侧壁50a的流道40b;第二弯折板612的两端与第二侧壁50b连接,以形成靠近第二侧壁50b的流道40b。In the embodiment shown in FIG. 10 , FIG. 10 is an enlarged schematic view of C in FIG. 8 . Both ends of the first bending plate 611 are connected to the first side wall 50a to form a flow channel 40b close to the first side wall 50a; both ends of the second bending plate 612 are connected to the second side wall 50b to form a flow channel 40b close to the first side wall 50a. The flow channel 40b of the second side wall 50b.
靠近第一侧壁50a的流道40b和靠近第二侧壁50b的流道40b可沿第一方向X相对设置,即在第一方向X上,具有两个流道40b。第一弯折板611和第二弯折板612围合可形成菱形的空腔40a。靠近第一侧壁50a的流道40b用于与贴靠于第一侧壁50a的电池单体20接触,靠近第二侧壁50b的流道40b用于与贴靠于第二侧壁50b的电池单体20接触。The flow channel 40b close to the first side wall 50a and the flow channel 40b close to the second side wall 50b may be arranged oppositely along the first direction X, that is, there are two flow channels 40b in the first direction X. The first bending plate 611 and the second bending plate 612 enclose a rhombus-shaped cavity 40a. The flow channel 40b close to the first side wall 50a is used to contact the battery cells 20 close to the first side wall 50a, and the flow channel 40b close to the second side wall 50b is used to contact the battery cells 20 close to the second side wall 50b. The battery cells 20 are in contact.
上述方案中,两个流道40b可分别与相邻的两个电池单体20接触,提高了热管理部件40的换热面积。In the above solution, the two flow channels 40b can respectively contact the two adjacent battery cells 20, thereby increasing the heat exchange area of the thermal management component 40.
在一些实施例中,在第一方向X上,第一弯折板611和第二弯折板612相对设置;第一弯折板611的弯折处与第二弯折板612的弯折处连接。In some embodiments, in the first direction X, the first bending plate 611 and the second bending plate 612 are arranged oppositely; connect.
第一弯折板611和第二弯折板612可呈三角形,流道40b和空间较大,第一弯折板611的弯折处远离第一侧壁50a,第二弯折板612的弯折处远离第二侧壁50b,两个弯折处连接,结构稳定。在其它实施例中,第一弯折板611和第二弯折板612也可以为L型、弧形等其它形状。The first bending plate 611 and the second bending plate 612 can be in the shape of a triangle, and the flow channel 40b and the space are relatively large. The bending point of the first bending plate 611 is away from the first side wall 50a, and the bending point of the second bending plate 612 is The folding point is away from the second side wall 50b, the two folding points are connected, and the structure is stable. In other embodiments, the first bending plate 611 and the second bending plate 612 may also be L-shaped, arc-shaped, or other shapes.
上述方案中,第一弯折板611弯折处和第二弯折板612的弯折处连接,可加强分隔组件61的强度。In the above solution, the bending portion of the first bending plate 611 and the bending portion of the second bending plate 612 are connected, which can enhance the strength of the partition assembly 61 .
如图11所示,图11为图8的C处放大示意图。第一弯折板611包括互相连接的第一倾斜段611a和第二倾斜段611b,第一支撑筋621分别与第一倾斜段611a和第二倾斜段611b连接。第一支撑筋621的弯折处与第一侧壁50a连接,两端分别与第一倾斜段611a和第二倾斜段611b连接,提高了第一弯折板611与第一侧壁50a的连接强度,提高了靠近第一 侧壁50a的流道40b的强度。第一支撑筋621可以为三角形,结构稳固。在其它实施例中,还可以将第一支撑筋621设置为L型或弧形等形状,或者第一支撑筋621包括分隔的两段,一段分别与第一侧壁50a以及第一倾斜段611a连接,另一段分别与第二侧壁50b以及第二倾斜段611b连接。As shown in Figure 11, Figure 11 is an enlarged schematic diagram of C in Figure 8. The first bending plate 611 includes a first inclined section 611a and a second inclined section 611b that are connected to each other. The first supporting ribs 621 are connected to the first inclined section 611a and the second inclined section 611b respectively. The bending part of the first support rib 621 is connected to the first side wall 50a, and both ends are connected to the first inclined section 611a and the second inclined section 611b respectively, which improves the connection between the first bending plate 611 and the first side wall 50a. The strength improves the strength of the flow channel 40b close to the first side wall 50a. The first support rib 621 can be triangular and has a stable structure. In other embodiments, the first support rib 621 can also be set in an L-shaped or arc-shaped shape, or the first support rib 621 includes two separate sections, one section is connected to the first side wall 50a and the first inclined section 611a respectively. connected, and the other section is connected to the second side wall 50b and the second inclined section 611b respectively.
在一些实施例中,第二弯折板612包括互相连接的第三倾斜段612a和第四倾斜段613b,第二支撑筋622分别与第三倾斜段612a和第四倾斜段613b连接。第二支撑筋622的弯折处与第二侧壁50b连接,两端分别与第三倾斜段612a和第四倾斜段613b连接,提高了第二弯折板612与第二侧壁50b的连接强度,提高了靠近第二侧壁50b的流道40b的强度。第二支撑筋622可以为三角形,结构稳固。在其它实施例中,还可以将第二支撑筋622设置为L型或弧形等形状,或者第二支撑筋622包括分隔的两段,一段分别与第二侧壁50b以及第三倾斜段612a连接,另一段分别与第二侧壁50b以及第四倾斜段613b连接。In some embodiments, the second bending plate 612 includes a third inclined section 612a and a fourth inclined section 613b connected to each other, and the second support rib 622 is connected to the third inclined section 612a and the fourth inclined section 613b respectively. The bending part of the second support rib 622 is connected to the second side wall 50b, and both ends are connected to the third inclined section 612a and the fourth inclined section 613b respectively, which improves the connection between the second bending plate 612 and the second side wall 50b. The strength improves the strength of the flow channel 40b close to the second side wall 50b. The second support rib 622 may be triangular and has a stable structure. In other embodiments, the second support rib 622 can also be configured in an L-shaped or arc-shaped shape, or the second support rib 622 includes two separate sections, one section is connected to the second side wall 50b and the third inclined section 612a respectively. connected, and the other section is connected to the second side wall 50b and the fourth inclined section 613b respectively.
在另一些实施例中,第一弯折板611包括互相连接的第一倾斜段611a和第二倾斜段611b,第一支撑筋621分别与第一倾斜段611a和第二倾斜段611b连接,且第二弯折板612包括互相连接的第三倾斜段612a和第四倾斜段613b,第二支撑筋622分别与第三倾斜段612a和第四倾斜段613b连接。能够加强第一弯折板611和第二弯折板612的连接强度,以及提高靠近第一侧壁50a的流道40b的强度和靠近第二侧壁50b的流道40b的强度。In other embodiments, the first bending plate 611 includes a first inclined section 611a and a second inclined section 611b that are connected to each other, and the first support rib 621 is connected to the first inclined section 611a and the second inclined section 611b respectively, and The second bending plate 612 includes a third inclined section 612a and a fourth inclined section 613b that are connected to each other. The second supporting ribs 622 are respectively connected to the third inclined section 612a and the fourth inclined section 613b. The connection strength of the first bending plate 611 and the second bending plate 612 can be strengthened, and the strength of the flow channel 40b close to the first side wall 50a and the strength of the flow channel 40b close to the second side wall 50b can be improved.
图12为本申请又一些实施例提供的热管理部件的侧视图。在如图12所示的实施例中,分隔组件61包括第一隔板613和第二隔板614,第一隔板613沿第二方向Y延伸,第二隔板614沿第一方向X延伸,第一方向X和第二方向Y相交设置,第二隔板614分别与第一侧壁50a和第二侧壁50b连接,以将外壳50内限定出分隔设置的流道40b和空腔40a。Figure 12 is a side view of a thermal management component provided by some embodiments of the present application. In the embodiment shown in Figure 12, the partition assembly 61 includes a first partition 613 and a second partition 614. The first partition 613 extends along the second direction Y, and the second partition 614 extends along the first direction X. , first direction .
第二方向Y为图12所示的Y方向,第一方向X和第二方向Y可垂直设置,使得流道40b和空腔40a为矩形。第二隔板614能够支撑第一侧壁50a和第二侧壁50b,提高了热管理部件40的结构强度。The second direction Y is the Y direction shown in FIG. 12, and the first direction X and the second direction Y can be arranged vertically, so that the flow channel 40b and the cavity 40a are rectangular. The second partition 614 can support the first side wall 50a and the second side wall 50b, thereby improving the structural strength of the thermal management component 40.
在一些实施例中,在第二方向Y上,空腔40a和流道40b呈交替 设置。空腔40a和流道40b交替设置,既能保证电池单体20的换热效率,又能均匀吸收电池单体20的膨胀。In some embodiments, in the second direction Y, the cavities 40a and the flow channels 40b are alternately arranged. The cavities 40a and flow channels 40b are alternately arranged, which can not only ensure the heat exchange efficiency of the battery cells 20, but also absorb the expansion of the battery cells 20 evenly.
在第一方向X上,空腔40a和流道40b相邻设置,提高了外壳50内部的空间利用率。保证了靠近第一侧壁50a均匀交替设置有流道40b和空腔40a,对贴靠于第一侧壁50a的电池单体20进行充分换热,且能够吸收该电池单体20的膨胀力。保证了以及靠近第二侧壁50b均匀交替设置有流道40b和空腔40a,对贴靠于第二侧壁50b的电池单体20进行充分换热,且能够吸收该电池单体20的膨胀力。In the first direction X, the cavity 40a and the flow channel 40b are arranged adjacently, which improves the space utilization inside the housing 50. It is ensured that the flow channels 40b and the cavities 40a are evenly arranged alternately near the first side wall 50a to fully exchange heat for the battery cell 20 that is close to the first side wall 50a and to absorb the expansion force of the battery cell 20. . It is ensured that the flow channels 40b and the cavities 40a are evenly arranged alternately close to the second side wall 50b to fully exchange heat for the battery cell 20 that is close to the second side wall 50b and to absorb the expansion of the battery cell 20 force.
在一些实施例中,第一支撑筋621分别与第一隔板613和第一侧壁50a连接,第二支撑筋622分别与第一隔板613和第二侧壁50b连接。In some embodiments, the first support ribs 621 are connected to the first partition 613 and the first side wall 50a respectively, and the second support ribs 622 are connected to the first partition 613 and the second side wall 50b respectively.
第一支撑筋621位于靠近第一侧壁50a的流道40b中,第二支撑筋622位于靠近第二侧壁50b的流道40b中。第一支撑筋621和第二支撑筋622分别沿第一方向X延伸,第一侧壁50a和第二侧壁50b受到电池单体20的膨胀挤压时,能够避免流道40b沿第一反向的高度被压缩,防止流道40b的容积发生变化,保证对靠近第一侧壁50a的电池单体20以及靠近第二侧壁50b的电池单体20的换热效果。The first support rib 621 is located in the flow channel 40b close to the first side wall 50a, and the second support rib 622 is located in the flow channel 40b close to the second side wall 50b. The first support ribs 621 and the second support ribs 622 respectively extend along the first direction The height is compressed to prevent the volume of the flow channel 40b from changing, ensuring the heat exchange effect on the battery cells 20 close to the first side wall 50a and the battery cells 20 close to the second side wall 50b.
本申请第二方面的实施例提供一种热管理系统,包括上述任一实施方式提供的热管理部件40,多个热管理部件40间隔设置。电池单体20位于相邻的两个热管理部件40之间,使得每个电池单体20的两侧分别与两个热管理部件40接触,多个热管理部件40通过连接管70连接,以实现各个热管理部件40之间的连接,以及换热介质的循环。The second embodiment of the present application provides a thermal management system, including the thermal management component 40 provided in any of the above embodiments, with multiple thermal management components 40 arranged at intervals. The battery cell 20 is located between two adjacent thermal management components 40 such that both sides of each battery cell 20 are in contact with two thermal management components 40 respectively. Multiple thermal management components 40 are connected through connecting pipes 70 to The connection between the various thermal management components 40 and the circulation of the heat exchange medium are realized.
本申请第三方面的实施例提供一种电池,包括电池单体20和上述任一实施方式的热管理部件40,热管理部件40被配置为贴靠于电池单体20。A third embodiment of the present application provides a battery, including a battery cell 20 and the thermal management component 40 of any of the above embodiments. The thermal management component 40 is configured to abut against the battery cell 20 .
本申请第四方面的实施例提供一种用电装置,包括上述电池,电池用于提供电能。A fourth embodiment of the present application provides an electrical device, including the above-mentioned battery, and the battery is used to provide electrical energy.
根据本申请的一些实施例,本申请提供了一种热管理部件40,包括外壳50和支撑部件60,支撑部件60容纳于外壳50内并用于在外壳50内限定出分隔设置的流道40b和空腔40a,流道40b用于供换热介质流 动,空腔40a被配置为在外壳50受压时可变形。上述方案中,通过流道40b中的换热介质为电池单体20进行加热或冷却,当电池箱内部的电池单体20在使用过程中发生膨胀时,由于外壳50的内部具有空腔40a,外壳50受到电池单体20的作用力时能够发生形变,防止热管理部件40的外壳50对电池单体20的反作用过大,为电池单体20成组吸收公差,避免损坏电池单体20,降低热管理部件40和电池单体20热交换面积的减小幅度,改善电池单体20的循环性能。According to some embodiments of the present application, the present application provides a thermal management component 40, which includes a housing 50 and a support component 60. The support component 60 is accommodated in the housing 50 and used to define separate flow channels 40b and 40b in the housing 50. The cavity 40a and the flow channel 40b are used for the heat exchange medium to flow, and the cavity 40a is configured to be deformable when the shell 50 is pressurized. In the above solution, the battery cells 20 are heated or cooled by the heat exchange medium in the flow channel 40b. When the battery cells 20 inside the battery box expand during use, since there is a cavity 40a inside the casing 50, The casing 50 can deform when subjected to the force of the battery cells 20, preventing the casing 50 of the thermal management component 40 from having an excessive reaction on the battery cells 20, absorbing tolerances for the battery cells 20 in groups, and avoiding damage to the battery cells 20. Reduce the heat exchange area between the thermal management component 40 and the battery cell 20 to improve the cycle performance of the battery cell 20 .
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other.
最后应说明的是:以上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,或者对其中部分技术特征进行等同替换,但这些修改或者替换,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精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modifications may be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions may be made to some of the technical features, but these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions in the embodiments of the present application.

Claims (18)

  1. 一种热管理部件,包括:A thermal management component including:
    外壳;shell;
    支撑部件,容纳于所述外壳内并用于在所述外壳内限定出分隔设置的流道和空腔,所述流道用于供换热介质流动,所述空腔被配置为在所述外壳受压时可变形。A support component, accommodated in the housing and used to define spaced flow channels and cavities in the housing, the flow channels being used for flow of heat exchange medium, and the cavities being configured to be in the housing. Can deform under pressure.
  2. 根据权利要求1所述的热管理部件,其中,所述支撑部件与所述外壳围合形成所述流道。The thermal management component according to claim 1, wherein the support component and the housing are enclosed to form the flow channel.
  3. 根据权利要求1所述的热管理部件,其中,所述支撑部件包括:The thermal management component of claim 1, wherein the support component includes:
    分隔组件,用于在所述外壳内限定出分隔设置的流道和空腔;A partition assembly for defining separately arranged flow channels and cavities within the housing;
    支撑组件,用于设置在所述流道内或者与所述分隔组件共同限定出所述流道,以对所述流道进行支撑。A support component is configured to be disposed in the flow channel or define the flow channel together with the separation component to support the flow channel.
  4. 根据权利要求3所述的热管理部件,其中,所述外壳包括:The thermal management component of claim 3, wherein the housing includes:
    第一侧壁;first side wall;
    第二侧壁,沿第一方向与所述第一侧壁相对设置,所述分隔组件分别与所述第一侧壁和第二侧壁连接。The second side wall is arranged opposite to the first side wall along the first direction, and the partition components are connected to the first side wall and the second side wall respectively.
  5. 根据权利要求4所述的热管理部件,其中,所述分隔组件包括:The thermal management component of claim 4, wherein the partition assembly includes:
    第一弯折板,与所述第一侧壁连接;A first bending plate connected to the first side wall;
    第二弯折板,与所述第二侧壁连接,所述第一弯折板和所述第二弯折板限定出所述空腔。A second bending plate is connected to the second side wall, and the first bending plate and the second bending plate define the cavity.
  6. 根据权利要求5所述的热管理部件,其中,所述支撑组件包括:The thermal management component of claim 5, wherein the support assembly includes:
    第一支撑筋,分别与所述第一弯折板和所述第二侧壁连接;The first support ribs are respectively connected to the first bending plate and the second side wall;
    第二支撑筋,分别与所述第二弯折板和所述第一侧壁连接。The second support ribs are respectively connected to the second bending plate and the first side wall.
  7. 根据权利要求6所述的热管理部件,其中,所述第一弯折板的两端与所述第一侧壁连接,所述第二弯折板的两端与所述第二侧壁连接;The thermal management component according to claim 6, wherein two ends of the first bending plate are connected to the first side wall, and two ends of the second bending plate are connected to the second side wall. ;
    在所述第一方向上,所述第一弯折板和所述第二弯折板呈错位设置,所述第一支撑筋和所述第二支撑筋之间形成所述流道。In the first direction, the first bending plate and the second bending plate are arranged in an offset manner, and the flow channel is formed between the first support rib and the second support rib.
  8. 根据权利要求7所述的热管理部件,其中,所述第一弯折板的数量 为多个,相邻的两个所述第一弯折板之间间隔预设距离;和/或,The thermal management component according to claim 7, wherein the number of the first bending plates is multiple, and two adjacent first bending plates are separated by a preset distance; and/or,
    所述第二弯折板的数量为多个,相邻的两个所述第二弯折板之间间隔预设距离。There are multiple second bending plates, and two adjacent second bending plates are spaced apart by a preset distance.
  9. 根据权利要求6所述的热管理部件,其中,所述第一弯折板的两端与所述第一侧壁连接,以形成靠近所述第一侧壁的所述流道;The thermal management component according to claim 6, wherein two ends of the first bending plate are connected to the first side wall to form the flow channel close to the first side wall;
    所述第二弯折板的两端与所述第二侧壁连接,以形成靠近所述第二侧壁的所述流道。Both ends of the second bent plate are connected to the second side wall to form the flow channel close to the second side wall.
  10. 根据权利要求9所述的热管理部件,其中,在所述第一方向上,所述第一弯折板和所述第二弯折板相对设置;The thermal management component according to claim 9, wherein in the first direction, the first bending plate and the second bending plate are arranged oppositely;
    所述第一弯折板的弯折处与所述第二弯折板的弯折处连接。The bending part of the first bending plate is connected to the bending part of the second bending plate.
  11. 根据权利要求9所述的热管理部件,其中,所述第一弯折板包括互相连接的第一倾斜段和第二倾斜段,所述第一支撑筋分别与所述第一倾斜段和第二倾斜段连接;The thermal management component according to claim 9, wherein the first bending plate includes a first inclined section and a second inclined section connected to each other, and the first support rib is connected to the first inclined section and the second inclined section respectively. Two inclined sections are connected;
    和/或,所述第二弯折板包括互相连接的第三倾斜段和第四倾斜段,所述第二支撑筋分别与所述第三倾斜段和第四倾斜段连接。And/or, the second bending plate includes a third inclined section and a fourth inclined section connected to each other, and the second support rib is connected to the third inclined section and the fourth inclined section respectively.
  12. 根据权利要求4所述的热管理部件,其中,所述分隔组件包括:The thermal management component of claim 4, wherein the partition assembly includes:
    第一隔板,沿第二方向延伸,a first partition extending along the second direction,
    第二隔板,沿所述第一方向延伸,所述第一方向和第二方向相交设置,所述第二隔板分别与所述第一侧壁和第二侧壁连接,以将所述外壳内限定出分隔设置的所述流道和空腔。A second partition extends along the first direction, the first direction and the second direction intersect, and the second partition is connected to the first side wall and the second side wall respectively to connect the The flow channels and cavities arranged separately are defined in the housing.
  13. 根据权利要求12所述的热管理部件,其中,在所述第二方向上,所述空腔和所述流道呈交替设置。The thermal management component according to claim 12, wherein in the second direction, the cavities and the flow channels are arranged alternately.
  14. 根据权利要求12所述的热管理部件,其中,在所述第一方向上,所述空腔和所述流道相邻设置。The thermal management component of claim 12, wherein the cavity and the flow channel are adjacently disposed in the first direction.
  15. 根据权利要求12所述的热管理部件,其中,所述第一支撑筋分别与所述第一隔板和所述第一侧壁连接,所述第二支撑筋分别与所述第一隔板和所述第二侧壁连接。The thermal management component according to claim 12, wherein the first support ribs are respectively connected to the first partition and the first side wall, and the second support ribs are respectively connected to the first partition. connected to the second side wall.
  16. 一种热管理系统,其中,包括多个如权利要求1-15中任一项所述的热管理部件,多个所述热管理部件间隔设置。A thermal management system, which includes a plurality of thermal management components according to any one of claims 1 to 15, and the plurality of thermal management components are arranged at intervals.
  17. 一种电池,其中,包括:A battery, including:
    电池单体;Battery cells;
    根据权利要求1-15中任一项所述的热管理部件,所述热管理部件贴靠于所述电池单体。The thermal management component according to any one of claims 1-15, which is abutted against the battery cell.
  18. 一种用电装置,其中,包括根据权利要求17所述的电池,所述电池用于提供电能。An electrical device, comprising the battery according to claim 17, the battery being used to provide electrical energy.
PCT/CN2022/100488 2022-02-21 2022-06-22 Thermal management component, thermal management system, battery and electric device WO2023245502A1 (en)

Priority Applications (32)

Application Number Priority Date Filing Date Title
PCT/CN2022/100488 WO2023245502A1 (en) 2022-06-22 2022-06-22 Thermal management component, thermal management system, battery and electric device
CN202280006457.6A CN116261798A (en) 2022-06-22 2022-06-22 Thermal management component, thermal management system, battery and electricity utilization device
CN202223349993.2U CN219350408U (en) 2022-06-22 2022-12-14 Thermal management component, thermal management system, battery and electricity utilization device
CN202380008510.0A CN116868417B (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
KR1020247022580A KR20240117128A (en) 2022-02-21 2023-01-03 batteries and electrical devices
CN202380008511.5A CN116724443B (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
CN202320014583.8U CN219203337U (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
EP23755626.1A EP4459748A1 (en) 2022-02-21 2023-01-03 Battery and electric device
CN202380008509.8A CN116802897B (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
CN202320014474.6U CN220042013U (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
PCT/CN2023/070135 WO2023155624A1 (en) 2022-02-21 2023-01-03 Battery and electric apparatus
KR1020247022994A KR20240118854A (en) 2022-02-21 2023-01-03 batteries and electrical devices
KR1020247018661A KR20240099426A (en) 2022-02-21 2023-01-03 Batteries and electrical devices
KR1020247023321A KR20240118156A (en) 2022-02-21 2023-01-03 batteries and electrical devices
CN202380008508.3A CN116491016A (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
EP23755627.9A EP4451443A1 (en) 2022-02-21 2023-01-03 Battery and electric device
EP23755624.6A EP4459749A1 (en) 2022-02-21 2023-01-03 Battery and electrical device
CN202320014404.0U CN219575742U (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
PCT/CN2023/070136 WO2023155625A1 (en) 2022-02-21 2023-01-03 Battery and electric device
PCT/CN2023/070133 WO2023155623A1 (en) 2022-02-21 2023-01-03 Battery and electric device
CN202380008512.XA CN116848705B (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
EP23755628.7A EP4451444A1 (en) 2022-02-21 2023-01-03 Battery and electric apparatus
CN202320014347.6U CN219203386U (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
CN202320014354.6U CN219203336U (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
PCT/CN2023/070126 WO2023155621A1 (en) 2022-02-21 2023-01-03 Battery and electrical device
PCT/CN2023/070131 WO2023155622A1 (en) 2022-02-21 2023-01-03 Battery and electric device
CN202380008507.9A CN116745978A (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
PCT/CN2023/070125 WO2023155620A1 (en) 2022-02-21 2023-01-03 Battery and electrical device
KR1020247018372A KR20240091290A (en) 2022-02-21 2023-01-03 Batteries and electrical devices
KR1020247022516A KR20240117127A (en) 2022-02-21 2023-01-03 batteries and electrical devices
CN202320014214.9U CN219203335U (en) 2022-02-21 2023-01-03 Battery and electricity utilization device
CN202410820399.1A CN118610662A (en) 2022-02-21 2023-01-03 Battery and electricity utilization device

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