WO2025076897A1 - 集流体组件、液冷系统、电池的箱体、电池和用电装置 - Google Patents

集流体组件、液冷系统、电池的箱体、电池和用电装置 Download PDF

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Publication number
WO2025076897A1
WO2025076897A1 PCT/CN2023/130236 CN2023130236W WO2025076897A1 WO 2025076897 A1 WO2025076897 A1 WO 2025076897A1 CN 2023130236 W CN2023130236 W CN 2023130236W WO 2025076897 A1 WO2025076897 A1 WO 2025076897A1
Authority
WO
WIPO (PCT)
Prior art keywords
current collector
collector assembly
battery
liquid cooling
end portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/130236
Other languages
English (en)
French (fr)
Inventor
王亚伟
柳洋
赵宾
俞丁山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP23955267.2A priority Critical patent/EP4746180A1/en
Publication of WO2025076897A1 publication Critical patent/WO2025076897A1/zh
Priority to US19/463,099 priority patent/US20260155482A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to a current collector assembly, a liquid cooling system, a battery case, a battery and an electrical device.
  • the battery cells will generate heat, which is usually dissipated by a water cooling system.
  • the water cooling system includes multiple current collectors and multiple adapters, and two adjacent current collectors are connected by adapters, which makes assembly complicated and costly.
  • the present application provides a current collector assembly, a liquid cooling system, a battery box, a battery and an electrical device, which can achieve direct interference connection between two current collectors in the current collector assembly, reduce the use of adapter tubes, reduce the assembly complexity of the current collector assembly, and reduce costs.
  • the present application provides a current collector assembly, which includes a plurality of current collectors, each of which includes a main body, a first end, and a second end, wherein the first end and the second end are located on opposite sides of the main body, and the second end of one current collector in the current collector assembly is interference connected with the first end of another current collector in the current collector assembly.
  • the cross-sectional area of the second end is smaller than the cross-sectional area of the first end, such that the second end of one current collector in the current collector assembly is located within the first end of another current collector in the current collector assembly.
  • the first end portion and the second end portion are both in a flat tube shape.
  • the first end and the second end are both in a flat tube shape, which can increase the cross-sectional area of the first end and the cross-sectional area of the second end, and reduce the space occupied by the current collector.
  • a cross-sectional area of the second end portion decreases along an extension direction of the second end portion.
  • the second end of one current collector in the current collector assembly can be interference connected with the first end of another current collector, thereby improving the sealing between the second end and the first end; in addition, the cross-sectional area of the second end gradually decreases along the extension direction of the second end, so that the outer surface of the second end is an inclined surface to have a guiding effect.
  • the first end and the second end are both cylindrical.
  • each of the current collectors includes at least one first seal disposed on the second end.
  • the first seal is located between the second end and the first end, and is used to seal the gap between the second end and the first end, thereby improving the sealing of the current collector assembly.
  • each of the current collectors further includes two first sealants, and the two first sealants are disposed on the second end portion at intervals along an extension direction of the second end portion.
  • the two first seals are spaced apart and arranged on the second end, and the gap between the second end and the first end is sealed by the two first seals, thereby further improving the sealing performance of the current collector assembly.
  • each of the current collectors further includes a first guide portion, one end of the first end portion is connected to the main body portion, and the other end of the first end portion is connected to the first guide portion.
  • a first guide portion is provided at the other end of the first end portion, and the first guide portion is used to guide the second end portion of one current collector in the current collector assembly to be assembled into the first end portion of another current collector, thereby improving the assembly efficiency of the current collector assembly.
  • a cross-sectional area of the first guide portion increases along an extending direction of the first end portion.
  • a second guide portion is provided at one end of the second end away from the main body portion, for guiding the second end of one current collector in the current collector assembly to be assembled into the first end of another current collector, thereby improving the assembly efficiency of the current collector assembly.
  • a cross-sectional area of the second guide portion decreases along an extension direction of the second end portion.
  • each of the current collectors further includes a second sealant disposed on an inner sidewall of the first end portion.
  • the second seal is arranged on the inner side wall of the first end, and the second end of one current collector in the current collector assembly is assembled in the first end of another current collector, that is, the second seal is located between the first end and the second end, and is used to seal the gap between the first end and the second end, thereby improving the sealing of the current collector assembly.
  • each of the current collectors further includes a first guide portion and a second seal, one end of the first end portion is connected to the main body portion, the other end of the first end portion is connected to the first guide portion, and the second seal is disposed on the inner side wall of the first guide portion.
  • the present application provides a liquid cooling system, comprising: a plurality of liquid cooling plates, arranged at intervals, each of the liquid cooling plates being provided with at least one cooling channel along the length direction of the liquid cooling plate; as the above-mentioned current collector assembly, the current collector in the current collector assembly is arranged at one end of the liquid cooling plate, the main body of the current collector has a first current collecting channel, and the first current collecting channel is connected to the cooling channel.
  • the first end and the second end of the current collector have a second current collecting channel, and the second current collecting channel is connected to the first current collecting channel.
  • the present application provides a battery box, comprising the above-mentioned liquid cooling system, wherein a liquid cooling plate of the liquid cooling system is attached to the battery cell to cool the battery cell.
  • the present application provides a battery, comprising: a plurality of battery cells; the above-mentioned liquid cooling system, wherein at least some of the plurality of battery cells are arranged between two adjacent liquid cooling plates in the liquid cooling system, and the liquid cooling system is used to cool two opposite sides of each of the at least some of the battery cells.
  • the present application provides an electrical device comprising the above-mentioned battery.
  • the current collector assembly of the present application includes a plurality of current collectors, each of which includes a main body, a first end, and a second end, the first end and the second end are located on opposite sides of the main body, and the second end of one current collector in the current collector assembly is interference-connected with the first end of another current collector in the current collector assembly.
  • FIG1 is a schematic structural diagram of a first embodiment of an electric device of the present application.
  • FIG2 is a schematic diagram of the exploded structure of the first embodiment of the battery of the present application.
  • FIG3 is a schematic structural diagram of a first embodiment of a current collector assembly of the present application.
  • FIG4 is a schematic structural diagram of a first embodiment of the current collector shown in FIG3 ;
  • FIG5 is a schematic structural diagram of a second embodiment of a current collector assembly of the present application.
  • FIG7 is a schematic structural diagram of a third embodiment of a current collector assembly of the present application.
  • FIG. 8 is a schematic structural diagram of a third embodiment of the current collector shown in FIG. 7
  • FIG10 is a schematic structural diagram of a fourth embodiment of a current collector assembly of the present application.
  • FIG. 12 is a schematic diagram of the exploded structure of the third embodiment of the battery of the present application.
  • the reference numerals in the specific implementation manner are as follows: Car 100; Battery 101; Controller 102; Motor 103; Box body 11; battery cell 10; first part 11a; second part 12a; Current collector assembly 20; current collector 21; main body 211; first end 212; second end 213; first sealing member 22; first guide portion 214; second guide portion 215; second sealing member 23; Liquid cooling plate 31; water inlet pipe 32; water outlet pipe 33; length direction L; width direction D; height direction H.
  • the battery cells will generate heat, which is usually dissipated by a water cooling system.
  • the water cooling system includes multiple current collectors and multiple adapters, and two adjacent current collectors are connected by adapters, which makes assembly complicated and costly.
  • the present application provides a current collector assembly, a liquid cooling system, a battery box, a battery and an electrical device.
  • a current collector assembly Through the interference connection between the second end of one current collector in the current collector assembly and the first end of another current collector in the current collector assembly, the two current collectors in the current collector assembly can be directly assembled, the use of adapter tubes is reduced, the process of plugging adapter tubes is omitted, the complexity of the current collector assembly assembly is reduced, and the cost is reduced.
  • the current collector assembly, liquid cooling system, battery housing, battery and electrical device disclosed in the embodiments of the present application can be used for electrical devices using batteries as power sources or various energy storage systems using batteries as energy storage elements.
  • Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc.
  • electric toys can include fixed or mobile electric toys, for example, game consoles, electric car toys, electric ship toys, electric airplane toys, etc.
  • spacecraft can include airplanes, rockets, space shuttles, spacecraft, etc.
  • the automobile 100 may be a fuel automobile, a gas automobile or a new energy automobile.
  • the new energy automobile may be a pure electric automobile, a hybrid automobile or an extended-range automobile, etc.
  • a battery 101 is arranged inside the automobile 100.
  • the battery 101 may be arranged at the bottom, the head or the tail of the automobile 100.
  • the battery 101 may be used to power the automobile 100.
  • the battery 101 may be used as an operating power source for the automobile 100.
  • the automobile 100 may also include a controller 102 and a motor 103.
  • the controller 102 is used to control the battery 101 to power the motor 103, for example, to meet the power requirements for starting, navigating and driving the automobile 100.
  • the battery 101 can be used not only as an operating power source for the automobile 100, but also as a driving power source for the automobile 100, replacing or partially replacing fuel or natural gas to provide driving power for the automobile 100.
  • the battery 101 may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.
  • the battery 101 mentioned in the embodiment of the present application refers to a single physical module including one or more battery cells 10 to provide higher voltage and capacity.
  • the battery cell 10 may be a secondary battery, which refers to a battery cell that can be recharged to activate the active material after the battery cell is discharged and can continue to be used.
  • Each battery cell 10 may also be a primary battery.
  • the battery cell 10 can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the present embodiment.
  • the battery cell 10 can be cylindrical, flat, rectangular or other shapes.
  • the battery 101 may be a battery module.
  • the multiple battery cells 10 are arranged and fixed to form a battery module.
  • the battery 101 may be a battery pack, which includes a box 11 and The battery cell 10 , the battery cell 10 or the battery module is accommodated in the box body 11 .
  • the box 11 can be used as a part of the chassis structure of the car 100.
  • part of the box 11 can become at least a part of the floor of the car 100, or part of the box 11 can become at least a part of the cross beam and longitudinal beam of the car 100.
  • the battery 101 includes a box body 11 and a battery cell 10, and the battery cell 10 is contained in the box body 11.
  • the box body 11 is used to provide a storage space for the battery cell 10, and the box body 11 can adopt a variety of structures.
  • the box body 11 can include a first part 11a and a second part 12a, and the first part 11a and the second part 12a cover each other, and the first part 11a and the second part 12a jointly define a storage space for accommodating the battery cell 10.
  • the second part 12a can be a hollow structure with one end open, and the first part 11a can be a plate-like structure, and the first part 11a covers the open side of the second part 12a, so that the first part 11a and the second part 12a jointly define a storage space; the first part 11a and the second part 12a can also be hollow structures with one side open, and the open side of the first part 11a covers the open side of the second part 12a.
  • the box body 11 formed by the first part 11a and the second part 12a can be a variety of shapes, such as a cylinder, a cuboid, etc.
  • the battery 101 there can be multiple battery cells 10, and the multiple battery cells 10 can be connected in series, in parallel, or in a mixed connection.
  • the mixed connection means that the multiple battery cells 10 are both connected in series and in parallel.
  • the multiple battery cells 10 can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 10 is accommodated in the box 11; of course, the battery 101 can also be a battery module formed by connecting multiple battery cells 10 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 11.
  • the battery 101 can also include other structures, for example, the battery 101 can also include a busbar component for realizing electrical connection between the multiple battery cells 10.
  • Figure 3 is a schematic diagram of the structure of the first embodiment of the current collector assembly of the present application
  • Figure 4 is a schematic diagram of the structure of the first embodiment of the current collector shown in Figure 3.
  • the current collector assembly 20 of this embodiment includes a plurality of current collectors 21, and the plurality of current collectors 21 refers to two or more current collectors 21; the current collector 21 refers to a component for collecting cooling liquid, and the cooling liquid includes but is not limited to water.
  • Each current collector 21 includes a main body 211, a first end 212 and a second end 213, wherein the first end 212 and the second end 213 are located on opposite sides of the main body 211, and the second end 213 of one current collector 21 in the current collector assembly 20 is interference connected with the first end 212 of another current collector 21 in the current collector assembly 20.
  • the opposite sides of the main body 211 refer to the two side surfaces of the main body 211, and the two side surfaces of the main body 211 are arranged opposite to each other.
  • the first end 212 and the second end 213 are located at the opposite sides of the main body 211, that is, the first end 212 is arranged on one side surface of the main body 211, and the second end 213 is arranged on the other side surface of the main body 211, and one side surface of the main body 211 is arranged opposite to the other side surface of the main body 211.
  • the interference connection between the second end 213 of one current collector 21 in the current collector assembly 20 and the first end 212 of another current collector 21 in the current collector assembly 20 means that the connection is achieved by using the interference fit between the second end 213 of one current collector 21 and the first end 212 of another current collector 21 .
  • the first end 212 has a first through hole
  • the second end 213 has a second through hole
  • the first through hole of the first end 212 is connected to the second through hole of the second end 213 to form a flow channel for collecting the coolant.
  • the interference fit between the second end 213 of one current collector 21 and the first end 212 of another current collector 21 means that the size of the second end 213 of one current collector 21 is larger than the size of the first through hole of the first end 212 of the other current collector 21, and the second end 213 of one current collector 21 is assembled in the first through hole of the other current collector 21; the size of the second end 213 refers to the cross-sectional area of the second end 213.
  • the main body 211 , the first end 212 and the second end 213 of a current collector 21 are integrally formed to improve the sealing performance of the current collector 21 .
  • the shape of the first through hole and the shape of the second through hole include but are not limited to circular, rectangular, elliptical Or rectangle, etc.
  • the second end 213 of one current collector 21 in the current collector assembly 20 is interference-connected with the first end 212 of another current collector 21 in the current collector assembly 20, so that the two current collectors 21 in the current collector assembly 20 can be directly assembled, reducing the use of adapter tubes, eliminating the process of plugging in adapter tubes, reducing the complexity of assembling the current collector assembly 20, and reducing costs.
  • the direct assembly of the two current collectors 21 in the current collector assembly 20 can reduce the number of connection points between the connecting tube and the two current collectors, thereby reducing the risk of failure of the current collector assembly 20.
  • the cross-sectional area of the second end 213 is smaller than the cross-sectional area of the first end 212 , so that the second end 213 of one current collector 21 in the current collector assembly 20 is located within the first end 212 of another current collector 21 in the current collector assembly 20 .
  • the cross section of the second end 213 refers to the cross section obtained by a plane in the second end 213 that is perpendicular to the extension direction of the second end 213 ;
  • the cross section of the first end 212 refers to the cross section obtained by a plane in the first end 212 that is perpendicular to the extension direction of the first end 212 .
  • the cross-sectional area of the second end 213 is smaller than the cross-sectional area of the first end 212, and the cross-sectional area of the second end 213 is larger than the area of the first through hole of the first end 212, so that the second end 213 of one current collector 21 can be assembled in the first through hole of another current collector 21, so that the second end 213 of one current collector 21 in the current collector assembly 20 is located in the first end 212 of another current collector 21 in the current collector assembly 20.
  • the cross-sectional area of the second end 213 is set to be smaller than the cross-sectional area of the first end 212 , so that the second end 213 of one current collector 21 in the current collector assembly 20 is assembled into the first end 212 of another current collector 21 , thereby reducing the complexity of assembling the current collector assembly 20 .
  • the first end portion 212 and the second end portion 213 are both in a flat tube shape.
  • the flat tube refers to a pipe having a flat shape, that is, the shape of the first end 212 and the shape of the second end 213 are both flat, so that the shape of the first through hole of the first end 212 and the shape of the second through hole of the second end 213 are both flat.
  • the shape of the first through hole of the first end 212 and the shape of the second through hole of the second end 213 are both circular, if the flow rate of the coolant flowing through the first through hole and the second through hole needs to be increased, the diameter of the first through hole and the second through hole needs to be increased.
  • the first end 212 and the second end 213 of this embodiment are both in the shape of a flat tube. If the flow rate of the coolant flowing through the first through hole and the second through hole needs to be increased, the height of the first end 212 and the height of the second end 213 are increased, which can reduce the space occupied by the current collector 21.
  • first end 212 and the second end 213 are both in a flat tube shape, which can increase the cross-sectional area of the first end 212 and the second end 213 and reduce the space occupied by the current collector 21 .
  • the cross-sectional area of the second end portion 213 decreases along the extending direction of the second end portion 213 .
  • the extension direction of the second end portion 213 refers to the direction in which the second end portion 213 moves away from the main body portion 211.
  • the cross-sectional area of the second end portion 213 decreases along the extension direction of the second end portion 213, and the cross-sectional area of the second end portion 213 gradually decreases along the extension direction of the second end portion 213; for example, the second end portion 213 is a cone, and the cross-sectional area of the second end portion 213 close to the main body portion 211 is greater than the cross-sectional area of the second end portion 213 away from the main body portion 211.
  • the cross-sectional area of the second end 213 away from the main body 211 is smaller, which facilitates the second end 213 to be assembled to the first end 212 of another current collector 21.
  • the cross-sectional area of the second end 213 located within the first end 212 of another current collector 21 gradually increases, which can achieve an interference connection between the second end 213 of one current collector 21 in the current collector assembly 20 and the first end 212 of another current collector 21, thereby improving the sealing between the second end 213 and the first end 212 of another current collector 21.
  • the outer surface of the second end 213 is an inclined surface, which has a guiding effect, and further facilitates the second end 213 to be assembled to the first end 212 of another current collector 21.
  • the cross-sectional area of the second end 213 becomes smaller along the extension direction of the second end 213, so that the second end 213 of one current collector 21 in the current collector assembly 20 can be interference-connected with the first end 212 of another current collector 21, thereby improving the sealing between the second end 213 and the first end 212; in addition, the cross-sectional area of the second end 213 gradually becomes smaller along the extension direction of the second end 213, so that the outer surface of the second end 213 is inclined to have a guiding effect.
  • each current collector 21 includes at least one first seal 22, and the first seal 22 is disposed on the second end 213.
  • the at least one first seal 22 may include one first seal 22 or a plurality of first seals 22.
  • the first seal 22 is arranged on the outer surface of the second end 213.
  • the first seal 22 is located between the second end 213 of one current collector 21 and the first end 212 of another current collector 21.
  • the first seal 22 is used to seal the gap between the second end 213 of one current collector 21 and the first end 212 of another current collector 21, thereby improving the sealing of the current collector assembly 20.
  • the first sealing member 22 includes but is not limited to a sealing ring, and the first sealing member 22 is sleeved on the second end portion 213.
  • the first sealing member 22 and the second end portion 213 may be integrally formed.
  • a first seal 22 is provided on the second end 213.
  • the first seal 22 is located between the second end 213 and the first end 212, and is used to seal the gap between the second end 213 and the first end 212, thereby improving the sealing performance of the current collector assembly 20.
  • each current collector 21 further includes two first seals 22 , and the two first seals 22 are disposed on the second end 213 at intervals along the extension direction of the second end 213 .
  • two first seals 22 are spaced apart on the outer surface of the second end 213.
  • the two first seals 22 are located between the second end 213 of one current collector 21 and the first end 212 of another current collector 21.
  • the two first seals 22 are used to seal the gap between the second end 213 of one current collector 21 and the first end 212 of another current collector 21, thereby further improving the sealing performance of the current collector assembly 20.
  • the two first sealants 22 are spaced apart on the second end 213 , and the gap between the second end 213 of one current collector 21 and the first end 212 of another current collector 21 is sealed by the two first sealants 22 , thereby further improving the sealing performance of the current collector assembly 20 and improving the quality of the current collector assembly 20 .
  • each current collector 21 further includes a first guide portion 214 , one end of the first end portion 212 is connected to the main body portion 211 , and the other end of the first end portion 212 is connected to the first guide portion 214 .
  • the first guide portion 214 is used to guide the second end portion 213 of a current collector 21 to be assembled in the first end portion 212 , that is, the first guide portion 214 has a guiding function.
  • a first guide portion 214 is provided at the other end of the first end portion 212 , and the first guide portion 214 is used to guide the second end portion 213 of a current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of the current collector 21 , thereby improving the assembly efficiency of the current collector assembly 20 .
  • the cross-sectional area of the first guide portion 214 increases along the extending direction of the first end portion 212 .
  • the extending direction of the first end portion 212 refers to the direction in which the first end portion 212 is away from the main body portion 211 .
  • the cross-sectional area of the first guide portion 214 increases along the extension direction of the first end portion 212, that is, the cross-sectional area of the first guide portion 214 gradually increases in the direction away from the main body portion 211.
  • the first guide portion 214 is trumpet-shaped, that is, the cross-sectional area of the end of the first guide portion 214 away from the main body portion 211 is larger, which is conducive to guiding the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21.
  • the process of assembling the second end portion 213 of one current collector 21 into the first end portion 212 of another current collector 21 assembly tolerance occurs due to the dimensional tolerance of the assembly tool and/or the dimensional tolerance of the collector 21, and the cross-sectional area of the first guide portion 214 at one end away from the main body 211 is larger, which can absorb the assembly tolerance between the second end 213 of one collector 21 and the first end 212 of another collector 21.
  • the cross-sectional area of the first guide portion 214 of the present embodiment increases along the extension direction of the first end portion 212 , and the cross-sectional area of the end of the first guide portion 214 away from the main body portion 212 is larger, which is beneficial for guiding the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21 .
  • Figure 5 is a schematic structural diagram of the second embodiment of the current collector assembly of the present application
  • Figure 6 is a schematic structural diagram of the second embodiment of the current collector shown in Figure 5.
  • the current collector assembly 20 of this embodiment includes a plurality of current collectors 21, each current collector 21 includes a main body 211, a first end 212 and a second end 213, the first end 212 and the second end 213 are located on opposite sides of the main body 211, and the second end 213 of one current collector 21 in the current collector assembly 20 is interference connected with the first end 212 of another current collector 21 in the current collector assembly 20.
  • the cross-sectional area of the second end portion 213 is smaller than the cross-sectional area of the first end portion 212 , and both the first end portion 212 and the second end portion 213 are in a flat tube shape.
  • each current collector 21 further includes a second guide portion 215 , and the second guide portion 215 is connected to an end of the second end portion 213 away from the main body portion 211 .
  • One end of the second end portion 213 is connected to the main body portion 211, and the other end of the second end portion 213 is connected to the second guide portion 215.
  • the second guide portion 215 is used to guide the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21, thereby improving the assembly efficiency of the current collector assembly 20.
  • a cross-sectional area of one end of the second guide portion 215 connected to the second end portion 213 is larger than a cross-sectional area of the second end portion 213 , so that a step is formed at the connection between the second guide portion 215 and the second end portion 213 .
  • the cross-sectional area of one end of the second guide portion 215 connected to the second end 213 is greater than the cross-sectional area of the first through hole of the first end 212, so that the second end 213 of one current collector 21 is interference connected with the first end 212 of another current collector 21 in the current collector assembly 20.
  • a second guide portion 215 is provided at one end of the second end portion 213 away from the main body portion 211 , and the second guide portion 215 is used to guide the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21 , thereby improving the assembly efficiency of the current collector assembly 20 .
  • a cross-sectional area of the second guide portion 215 decreases along an extending direction of the second end portion 213 .
  • the extension direction of the second end 213 refers to the direction in which the second end 213 moves away from the main body 211;
  • the cross-sectional area of the second guide portion 215 decreases along the extension direction of the second end 213, for example, the cross-sectional area of the second guide portion 215 gradually decreases along the extension direction of the second end 213, that is, the cross-sectional area of the end of the second guide portion 215 away from the second end 213 is smaller, which facilitates the second end 213 to be assembled in the first end 212 of another current collector 21 through the second guide portion 215;
  • the cross-sectional area of the second guide portion 215 gradually decreases along the extension direction of the second end 213, and the outer surface of the second guide portion 215 is an inclined surface, which has a guiding function.
  • a second guide portion 215 is provided at one end of the second end portion 213 away from the main body portion 211 , for guiding the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21 , thereby improving the assembly efficiency of the current collector assembly 20 .
  • each current collector 21 further includes a second seal 23 , which is disposed on the inner side wall of the first end 212 .
  • the second sealing member 23 is disposed on the inner side wall of the end of the first end 212 away from the main body 211; the second end 213 of one current collector 21 in the current collector assembly 20 is assembled in the first end 212 of another current collector 21, that is, the second sealing member 23 is located between the first end 212 and the second end 213, and is used to seal one
  • the gap between the second end 213 of the current collector 21 and the first end 212 of another current collector 21 improves the sealing performance of the current collector assembly 20 .
  • the material of the second seal 23 includes but is not limited to soft glue or a sealing ring, and soft glue refers to plastic formed by injection molding, that is, the inner wall of the end of the first end 212 away from the main body 211 is provided with plastic formed by injection molding to form the second seal 23 on the inner wall of the first end 212.
  • the second sealing member 23 and the first end portion 212 may be integrally formed.
  • the second seal 23 of the present embodiment is arranged on the inner side wall of the first end 212, and the second end 213 of one current collector 21 in the current collector assembly 20 is assembled in the first end 212 of another current collector 21, that is, the second seal 23 is located between the first end 212 and the second end 213, and is used to seal the gap between the second end 213 of one current collector 21 and the first end 212 of another current collector 21, so as to improve the sealing performance of the current collector assembly 20.
  • Figure 7 is a schematic structural diagram of the third embodiment of the current collector assembly of the present application
  • Figure 8 is a schematic structural diagram of the third embodiment of the current collector shown in Figure 7.
  • the current collector assembly 20 of this embodiment includes a plurality of current collectors 21, each current collector 21 includes a main body 211, a first end 212 and a second end 213, the first end 212 and the second end 213 are located on opposite sides of the main body 211, and the second end 213 of one current collector 21 in the current collector assembly 20 is interference connected with the first end 212 of another current collector 21 in the current collector assembly 20.
  • each current collector 21 further includes a first guide portion 214 , one end of the first end portion 212 is connected to the main body portion 211 , and the other end of the first end portion 212 is connected to the first guide portion 214 .
  • the first guide portion 214 is used to guide the second end portion 213 of a current collector 21 to be assembled in the first end portion 212 , that is, the first guide portion 214 has a guiding function.
  • a first guide portion 214 is provided at the other end of the first end portion 212 , and the first guide portion 214 is used to guide the second end portion 213 of a current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of the current collector 21 , thereby improving the assembly efficiency of the current collector assembly 20 .
  • the cross-sectional area of the first guide portion 214 increases along the extending direction of the first end portion 212 .
  • the cross-sectional area of the first guide portion 214 increases along the extension direction of the first end portion 212, that is, the cross-sectional area of the first guide portion 214 gradually increases in the direction away from the main body portion 211.
  • the first guide portion 214 is trumpet-shaped, that is, the cross-sectional area of the end of the first guide portion 214 away from the main body portion 211 is larger, which is conducive to guiding the second end 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end 212 of another current collector 21.
  • assembly tolerance occurs due to the dimensional tolerance of the assembly tool and/or the dimensional tolerance of the current collector 21, and the cross-sectional area of the end of the first guide portion 214 away from the main body portion 211 is larger, which can absorb the assembly tolerance between the second end 213 of one current collector 21 and the first end 212 of another current collector 21.
  • the cross-sectional area of the first guide portion 214 of the present embodiment increases along the extension direction of the first end portion 212 , and the cross-sectional area of the end of the first guide portion 214 away from the main body portion 212 is larger, which is beneficial for guiding the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21 .
  • each current collector 21 further includes a second seal 23 , and the second seal 23 is disposed on the inner side wall of the first guide portion 214 .
  • the second end 213 of one current collector 21 in the current collector assembly 20 is assembled in the first end 212 of another current collector 21, that is, the second seal 23 is located between the first guide portion 214 and the second end 213, and is used to seal the gap between the second end 213 of one current collector 21 and the first guide portion 214 of another current collector 21, thereby improving the sealing of the current collector assembly 20.
  • the material of the second sealing member 23 includes but is not limited to soft glue or a sealing ring.
  • the soft glue refers to plastic formed by injection molding, that is, plastic is provided on the inner side wall of the first guide portion 214 to form a seal ring on the first guide portion.
  • the inner side wall of 214 forms the second sealing member 23 .
  • the second sealing member 23 and the first guide portion 214 may be integrally formed.
  • the present application provides a liquid cooling system, as shown in Figure 9, which is a schematic diagram of the exploded structure of the second embodiment of the battery of the present application.
  • the liquid cooling system of this embodiment includes a plurality of liquid cooling plates 31 and a current collector assembly 20, and the current collector assembly 20 is the current collector assembly 20 disclosed in the above embodiment, which will not be described in detail here.
  • the plurality of liquid cooling plates 31 refers to two or more liquid cooling plates 31.
  • the cooling liquid is water
  • the liquid cooling plate 31 is a water cooling plate.
  • the plurality of liquid cooling plates 31 are arranged at intervals, for example, the plurality of liquid cooling plates 31 are arranged at intervals along the width direction D of the liquid cooling plate 31.
  • Each liquid cooling plate 31 is provided with at least one cooling channel along the length direction L of the liquid cooling plate 31 , and the cooling channel is used to transmit cooling liquid, for example, the cooling channel is used to transmit water.
  • the current collector 21 in the current collector assembly 20 is disposed at one end of the liquid cooling plate 31 .
  • the main body 211 of the current collector 21 has a first current collecting channel, and the first current collecting channel of the main body 211 is connected to the cooling channel.
  • the liquid cooling system includes two current collector assemblies 20, one current collector assembly 20 is arranged at one end of the liquid cooling plate 31, and the other current collector assembly 20 is arranged at the other end of the liquid cooling plate 31.
  • the current collectors 21 are arranged at opposite ends of the liquid cooling plate 31, so that the two ends of the cooling channel are respectively connected to the first current collecting channels of the corresponding current collectors 21.
  • the liquid cooling system of this embodiment includes multiple liquid cooling plates 31 and a current collector assembly 20.
  • the current collector 21 in the current collector assembly 20 is arranged at one end of the liquid cooling plate 31 so that the first current collecting channel of the main body 211 is connected to the cooling channel, and then the liquid cooling plate 31 transmits cooling liquid through the current collector assembly 20.
  • the first end 212 and the second end 213 of the current collector 21 have a second current collecting channel, and the second current collecting channel is connected to the first current collecting channel.
  • the first through hole of the first end portion 212 and the second through hole of the second end portion 213 are connected to form a second collecting channel of the first end portion 212 and the second end portion 213 , and the second collecting channel is connected to the first collecting channel.
  • a flow direction of the cooling liquid in the first collecting channel is perpendicular to a flow direction of the cooling liquid in the second collecting channel.
  • the liquid cooling system further includes a water inlet pipe 32 and a water outlet pipe 33, the water inlet pipe 32 is connected to one of the two current collector assemblies 20, for example, the water inlet pipe 32 is in communication with the first end 212 or the second end 213 of the current collector 21 in one current collector assembly 20.
  • the water outlet pipe 33 is connected to the other of the two current collector assemblies 20, for example, the water outlet pipe 33 is in communication with the first end 212 or the second end 213 of the current collector 21 in the other current collector assembly 20.
  • the cooling liquid flows into the cooling channels of all the liquid cooling plates 31 through the water inlet pipe 32 and the current collector assembly 20, and then flows out through the current collector assembly 20 and the water outlet pipe 33 to achieve water cooling.
  • the present application provides a battery box, as shown in FIG9 , the box 11 is used to accommodate the battery cell 10 , wherein the box 11 includes a liquid cooling system, and the liquid cooling system is the liquid cooling system of the above embodiment, which will not be described in detail here.
  • the liquid cooling plate 31 of the liquid cooling system is close to the battery cell 10 to cool the battery cell 10.
  • the cooling liquid flows through the liquid cooling plate 31 through the current collector assembly 20, so that the liquid cooling plate 31 cools the battery cell 10 through the cooling liquid.
  • the box body 11 further includes an upper cover 11a and a lower box body 12a, the upper cover 11a and the lower box body 12a cover each other, and the upper cover 11a and the lower box body 12a jointly define an accommodation space for accommodating the battery cell 10 and the liquid cooling system.
  • the battery 101 comprises a battery cell 10 and a box body 11 , the box body 11 is used to accommodate the battery cell 10 , the box body 11 is the box body 11 of the above embodiment, and will not be described again here.
  • the battery 101 includes a plurality of battery cells 10 and a liquid cooling system, at least some of the plurality of battery cells 10 are arranged between two adjacent liquid cooling plates 31 in the liquid cooling system; the liquid cooling system is used to cool the two opposite sides of each battery cell 10 in at least some of the battery cells 10.
  • all battery cells 10 are disposed between two adjacent liquid cooling plates 31 in the liquid cooling system.
  • the liquid cooling system is used to cool two opposite sides of all battery cells 10 to dissipate heat generated by the battery cells 10 and improve heat dissipation efficiency.
  • the height direction of the current collector 21 is the same as the height direction H of the liquid cooling plate 31. Since the first end 212 and the second end 213 of each current collector 21 are in the shape of a flat tube, that is, the first end 212 and the second end 213 of the current collector 21 occupy the space of the battery 101 in the height direction H of the liquid cooling plate 31, the space occupied by the current collector 21 in the battery 101 can be reduced, thereby improving the energy density of the battery 101.
  • the first end 212 and the second end 213 are increased in the height direction H of the liquid cooling plate 31, and there is no need to increase the space occupied by the first end 212 and the second end 213 in the length direction L and the width direction D of the liquid cooling plate 31. Therefore, the space occupied by the current collector 21 in the battery 101 can be reduced, thereby improving the energy density of the battery 101.
  • the present application provides an electric device.
  • the electric device of this embodiment includes a battery 101.
  • the battery 101 is the battery 101 of the above embodiment and will not be described in detail here.
  • Figure 10 is a schematic structural diagram of the fourth embodiment of the current collector assembly of the present application
  • Figure 11 is a schematic structural diagram of the fourth embodiment of the current collector shown in Figure 10.
  • the current collector assembly 20 of this embodiment includes a plurality of current collectors 21, each current collector 21 includes a main body 211, a first end 212 and a second end 213, the first end 212 and the second end 213 are located on opposite sides of the main body 211, and the second end 213 of one current collector 21 in the current collector assembly 20 is interference connected with the first end 212 of another current collector 21 in the current collector assembly 20.
  • the cross-sectional area of the second end portion 213 is smaller than the cross-sectional area of the first end portion 212 , and both the first end portion 212 and the second end portion 213 are cylindrical.
  • the first end portion 212 and the second end portion 213 are both cylindrical, which means that the first end portion 212 and the second end portion 213 are both circular tubes, and the diameter of the second end portion 213 is smaller than the diameter of the first end portion 212 .
  • each current collector 21 further includes a first guide portion 214 and a second guide portion 215 .
  • the first guide portion 214 is used to guide the second end portion 213 of a current collector 21 to be assembled in the first end portion 212, that is, the first guide portion 214 has a guiding function.
  • a first guide portion 214 is provided at the other end of the first end portion 212 , and the first guide portion 214 is used to guide the second end portion 213 of a current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of the current collector 21 , thereby improving the assembly efficiency of the current collector assembly 20 .
  • the cross-sectional area of the first guide portion 214 increases along the extension direction of the first end portion 212, that is, the cross-sectional area of the first guide portion 214 gradually increases in the direction away from the main body portion 211.
  • the first guide portion 214 is trumpet-shaped, that is, the cross-sectional area of one end of the first guide portion 214 away from the main body portion 211 is larger, which is conducive to guiding the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21.
  • the material of the inner wall of the first guide portion 214 includes but is not limited to soft glue, and soft glue refers to plastic formed by injection molding, that is, plastic is formed by injection molding on the inner wall of the first guide portion 214 to form soft glue on the inner wall of the first guide portion 214.
  • One end of the second end portion 213 is connected to the main body portion 211, and the other end of the second end portion 213 is connected to the second guide portion 215.
  • the second guide portion 215 is used to guide the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21, thereby improving the assembly efficiency of the current collector assembly 20.
  • a cross-sectional area of one end of the second guide portion 215 connected to the second end portion 213 is larger than a cross-sectional area of the second end portion 213 , so that a step is formed at the connection between the second guide portion 215 and the second end portion 213 .
  • the cross-sectional area of one end of the second guide portion 215 connected to the second end 213 is greater than the cross-sectional area of the first through hole of the first end 212, so that the second end 213 of one current collector 21 is interference connected with the first end 212 of another current collector 21 in the current collector assembly 20.
  • a second guide portion 215 is provided at one end of the second end portion 213 away from the main body portion 211 , and the second guide portion 215 is used to guide the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21 , thereby improving the assembly efficiency of the current collector assembly 20 .
  • the cross-sectional area of the second guide portion 215 decreases along the extension direction of the second end portion 213.
  • the extension direction of the second end portion 213 refers to the direction in which the second end portion 213 is away from the main body portion 211; the cross-sectional area of the second guide portion 215 decreases along the extension direction of the second end portion 213, for example, the cross-sectional area of the second guide portion 215 gradually decreases along the extension direction of the second end portion 213, that is, the cross-sectional area of the end of the second guide portion 215 away from the second end portion 213 is smaller, so that the second end portion 213 can be assembled in the first end portion 212 of another current collector 21 through the second guide portion 215; in addition, the cross-sectional area of the second guide portion 215 gradually decreases along the extension direction of the second end portion 213, and the outer surface of the second guide portion 215 is an inclined surface, which has a guiding effect.
  • a second guide portion 215 is provided at one end of the second end portion 213 away from the main body portion 211 , for guiding the second end portion 213 of one current collector 21 in the current collector assembly 20 to be assembled into the first end portion 212 of another current collector 21 , thereby improving the assembly efficiency of the current collector assembly 20 .
  • the present application provides a battery, as shown in FIG12, which is a schematic diagram of the exploded structure of the third embodiment of the battery of the present application.
  • the battery 101 of this embodiment includes a plurality of battery cells 10 and a liquid cooling system, and at least some of the battery cells 10 are arranged between two adjacent liquid cooling plates 31 in the liquid cooling system; the liquid cooling system is used to cool the two opposite sides of each battery cell 10 in at least some of the battery cells 10.
  • the liquid cooling system includes a plurality of liquid cooling plates 31 and a current collector assembly 20, and the current collector assembly 20 is the current collector assembly 20 shown in FIG8, which will not be described in detail here.
  • the present application realizes direct assembly of two current collectors 21 in the current collector assembly 20 by interference connection between the second end 213 of one current collector 21 in the current collector assembly 20 and the first end 212 of another current collector 21 in the current collector assembly 20, thereby reducing the use of adapter tubes, eliminating the process of plugging in adapter tubes, reducing the complexity of assembling the current collector assembly 20, and reducing costs; in addition, the direct assembly of the two current collectors 21 in the current collector assembly 20 can reduce the connection points between the connecting tube and the two current collectors, thereby reducing the risk of failure of the current collector assembly 20.

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  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请公开了集流体组件、液冷系统、电池的箱体、电池和用电装置。其中，集流体组件包括多个集流体，每个所述集流体包括主体部、第一端部和第二端部，所述第一端部和所述第二端部位于所述主体部的相对两侧，所述集流体组件中的一个集流体的第二端部与所述集流体组件中的另一个集流体的第一端部过盈连接。通过上述方式，能够实现集流体组件中的两个集流体直接装配，减少使用转接管，省去插接转接管的工序，降低集流体组件装配的复杂度，降低成本。

Description

集流体组件、液冷系统、电池的箱体、电池和用电装置
相关申请的交叉引用
本申请要求享有于2023年10月13日提交的名称为“集流体组件、液冷系统、电池的箱体、电池和用电装置”的中国专利申请2023227577572的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池技术领域，特别是涉及集流体组件、液冷系统、电池的箱体、电池和用电装置。
背景技术
随着电池技术的发展，电池单体应用于越来越多的领域，并在汽车动力领域逐渐替代传统的石化能源。电池单体可存储有化学能并将化学能可控地转化为电能。在可循环利用的电池单体中，在放电后可通过充电的方式使活性物质激活而继续使用。
在电池单体的使用过程中，电池单体会产生热量，电池单体所产生热量通常采用水冷系统进行散热。水冷系统包括多个集流体和多个转接管，相邻的两个集流体通过转接管进行连接，导致装配复杂，成本高。
发明内容
鉴于上述问题，本申请提供集流体组件、液冷系统、电池的箱体、电池和用电装置，能够实现集流体组件中两个集流体直接过盈连接，减少使用转接管，降低集流体组件的装配复杂度，降低成本。
第一方面，本申请提供了一种集流体组件，集流体组件包括多个集流体，每个所述集流体包括主体部、第一端部和第二端部，所述第一端部和所述第二端部位于所述主体部的相对两侧，所述集流体组件中的一个集流体的第二端部与所述集流体组件中的另一个集流体的第一端部过盈连接。
通过上述方式，通过集流体组件中的一个集流体的第二端部与集流体组件中的另一个集流体的第一端部过盈连接，能够实现集流体组件中的两个集流体直接装配，减少使用转接管，省去插接转接管的工序，降低集流体组件装配的复杂度，降低成本；此外，集流体组件中的两个集流体直接装配，能够减少连接管与两个集流体之间的连接点，降低集流体组件失效的风险。
在一些实施例中，所述第二端部的横截面面积小于所述第一端部的横截面面积，以使所述集流体组件中的一个集流体的第二端部位于所述集流体组件中的另一个集流体的第一端部内。
通过上述方式，便于集流体组件中的一个集流体的第二端部装配在另一个集流体的第一端部内，降低集流体组件装配的复杂度。
在一些实施例中，所述第一端部和所述第二端部均呈扁管状。
通过上述方式，第一端部和第二端部均呈扁管状，能够增加第一端部的横截面面积和第二端部的横截面面积，降低集流体所占用的空间。
在一些实施例中，所述第二端部的横截面面积沿所述第二端部的延伸方向变小。
通过上述方式，通过第二端部的横截面面积沿第二端部的延伸方向变小，能够实现集流体组件中的一个集流体的第二端部与另一个集流体的第一端部过盈连接，提高第二端部和第一端部之间的密封性；此外，第二端部的横截面面积沿第二端部的延伸方向逐渐变小，以使第二端部的外表面为倾斜面，以具有导向作用。
在一些实施例中，所述第一端部和所述第二端部均呈圆柱状。
在一些实施例中，每个所述集流体包括至少一个第一密封件，所述第一密封件设置于所述第二端部上。
通过上述方式，通过在第二端部上设置第一密封件，在集流体组件中的一个集流体的第二端部装配在另一个集流体的第一端部内的情况下，第一密封件位于第二端部和第一端部之间，用于密封第二端部和第一端部之间间隙，提高集流体组件的密封性。
在一些实施例中，每个所述集流体还包括两个所述第一密封件，两个所述第一密封件沿所述第二端部的延伸方向间隔设置于所述第二端部上。
通过上述方式，两个第一密封件间隔设置于第二端部上，通过两个第一密封件密封第二端部和第一端部之间间隙，进一步提高集流体组件的密封性。
在一些实施例中，每个所述集流体还包括第一导向部，所述第一端部的一端连接所述主体部，所述第一端部的另一端连接所述第一导向部。
通过上述方式，在第一端部的另一端设置有第一导向部，第一导向部用于引导集流体组件中的一个集流体的第二端部装配在另一个集流体的第一端部内，提高集流体组件的装配效率。
在一些实施例中，所述第一导向部的横截面面积沿所述第一端部的延伸方向变大。
通过上述方式，第一导向部的横截面面积沿第一端部的延伸方向变大，第一导向部远离主体部的一端的横截面面积较大，利于引导集流体组件中的一个集流体的第二端部装配在另一个集流体的第一端部内。
在一些实施例中，每个所述集流体还包括第二导向部，与所述第二端部远离所述主体部的一端连接。
通过上述方式，在第二端部远离主体部的一端设置有第二导向部，用于引导集流体组件中的一个集流体的第二端部装配在另一个集流体的第一端部内，提高集流体组件的装配效率。
在一些实施例中，所述第二导向部的横截面面积沿所述第二端部的延伸方向变小。
在一些实施例中，每个所述集流体还包括第二密封件，所述第二密封件设置于所述第一端部的内侧壁。
通过上述方式，第二密封件设置于所述第一端部的内侧壁，集流体组件中的一个集流体的第二端部装配在另一个集流体的第一端部内，即第二密封件位于第一端部和第二端部之间，用于密封第一端部和第二端部之间的间隙，提高集流体组件的密封性。
在一些实施例中，每个所述集流体还包括第一导向部和第二密封件，所述第一端部的一端连接所述主体部，所述第一端部的另一端连接所述第一导向部，所述第二密封件设置于所述第一导向部的内侧壁。
第二方面，本申请提供了一种液冷系统，包括：多个液冷板，间隔设置，每个所述液冷板沿所述液冷板的长度方向设置有至少一个冷却通道；如上述的所述集流体组件，所述集流体组件中的集流体设置于所述液冷板的一端，所述集流体的主体部具有第一集流通道，所述第一集流通道与所述冷却通道连通。
在一些实施例中，所述集流体的第一端部和第二端部具有第二集流通道，所述第二集流通道和所述第一集流通道连通。
第三方面，本申请提供了一种电池的箱体，包括上述的液冷系统，所述液冷系统的液冷板贴靠所述电池单体，以对所述电池单体进行冷却。
第四方面，本申请提供了一种电池，包括：多个电池单体；上述的的液冷系统，所述多个电池单体中的至少部分电池单体设置于所述液冷系统中相邻的两个液冷板之间，所述液冷系统用于对所述至少部分电池单体中的每个电池单体的两个相对侧面进行冷却。
第五方面，本申请提供了一种用电装置，包括上述的电池。
区别于现有技术：本申请的集流体组件包括多个集流体，每个所述集流体包括主体部、第一端部和第二端部，所述第一端部和所述第二端部位于所述主体部的相对两侧，所述集流体组件中的一个集流体的第二端部与所述集流体组件中的另一个集流体的第一端部过盈连接。通过上述方式，通过集流体组件中的一个集流体的第二端部与集流体组件中的另一个集流体的第一端部过盈连接，能够实现集流体组件中的两个集流体直接装配，减少使用转接管，省去插接转接管的工序，降低集流体组件装配的复杂度，降低成本；此外，集流体组件中的两个集流体直接装配，能够减少连接管与两个集流体之间的连接点，降低集流体组件失效的风险。
附图说明
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为本申请的用电装置的第一实施例的结构示意图；
图2为本申请的电池的第一实施例的分解结构示意图；
图3为本申请的集流体组件的第一实施例的结构示意图；
图4为图3所示集流体的第一实施例的结构示意图；
图5为本申请的集流体组件的第二实施例的结构示意图；
图6为图5所示集流体的第二实施例的结构示意图；
图7为本申请的集流体组件的第三实施例的结构示意图；
图8为图7所示集流体的第三实施例的结构示意图
图9为本申请的电池的第二实施例的分解结构示意图；
图10为本申请的集流体组件的第四实施例的结构示意图；
图11为图10所示集流体的第四实施例的结构示意图；
图12为本申请的电池的第三实施例的分解结构示意图。
具体实施方式中的附图标号如下：
汽车100；
电池101；控制器102；马达103；
箱体11；电池单体10；第一部分11a；第二部分12a；
集流体组件20；集流体21；主体部211；第一端部212；第二端部213；第一
密封件22；第一导向部214；第二导向部215；第二密封件23；
液冷板31；进水管32；出水管33；长度方向L；宽度方向D；高度方向H。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是 可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
随着电池技术的发展，电池单体应用于越来越多的领域，并在汽车动力领域逐渐替代传统的化石能源。电池单体可存储有化学能并将化学能可控地转化为电能。在可循环利用的电池单体中，在放电后可通过充电的方式使活性物质激活而继续使用。
在电池单体的使用过程中，电池单体会产生热量，电池单体所产生热量通常采用水冷系统进行散热。水冷系统包括多个集流体和多个转接管，相邻的两个集流体通过转接管进行连接，导致装配复杂，成本高。
基于以上考虑，本申请提供集流体组件、液冷系统、电池的箱体、电池和用电装置。通过集流体组件中的一个集流体的第二端部与集流体组件中的另一个集流体的第一端部过盈连接，能够实现集流体组件中的两个集流体直接装配，减少使用转接管，省去插接转接管的工序，降低集流体组件装配的复杂度，降低成本。
本申请实施例公开的集流体组件、液冷系统、电池的箱体、电池和用电装置可以用于使用电池作为电源的用电装置或者使用电池作为储能元件的各种储能系统。用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
以下实施例为了方便说明，以本申请一实施例的一种用电装置为汽车100为例进行说明。
请参照图1，汽车100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。汽车100的内部设置有电池101，电池101可以设置在汽车100的底部或头部或尾部。电池101可以用于汽车100的供电，例如，电池101可以作为汽车100的操作电源。汽车100还可以包括控制器102和马达103，控制器102用来控制电池101为马达103供电，例如，用于汽车100的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池101不仅可以作为汽车100的操作电源，还可以作为汽车100的驱动电源，代替或部分地代替燃油或天然气为汽车100提供驱动动力。
在一些实施例中，电池101可以为储能装置。储能装置包括储能集装箱、储能电柜等。
本申请的实施例所提到的电池101是指包括一个或多个电池单体10以提供更高的电压和容量的单一的物理模块。
本申请实施例中，电池单体10可以为二次电池，二次电池是指在电池单体放电后可通过充电的方式使活性材料激活而继续使用的电池单体。每个电池单体10也可以为一次电池。
电池单体10可以为锂离子电池、钠离子电池、钠锂离子电池、锂金属电池、钠金属电池、锂硫电池、镁离子电池、镍氢电池、镍镉电池、铅蓄电池等，本申请实施例对此并不限定。电池单体10可呈圆柱体、扁平体、长方体或其它形状等。
在一些实施例中，电池101可以为电池模块，电池单体10有多个时，多个电池单体10排列并固定形成一个电池模块。
在一些实施例中，请参照图2，电池101可以为电池包，电池包包括箱体11和 电池单体10，电池单体10或电池模块容纳于箱体11中。
在一些实施例中，箱体11可以作为汽车100的底盘结构的一部分。例如，箱体11的部分可以成为汽车100的地板的至少一部分，或者，箱体11的部分可以成为汽车100的横梁和纵梁的至少一部分。
请参照图2，电池101包括箱体11和电池单体10，电池单体10容纳于箱体11内。其中，箱体11用于为电池单体10提供容纳空间，箱体11可以采用多种结构。在一些实施例中，箱体11可以包括第一部分11a和第二部分12a，第一部分11a与第二部分12a相互盖合，第一部分11a和第二部分12a共同限定出用于容纳电池单体10的容纳空间。第二部分12a可以为一端开口的空心结构，第一部分11a可以为板状结构，第一部分11a盖合于第二部分12a的开口侧，以使第一部分11a与第二部分12a共同限定出容纳空间；第一部分11a和第二部分12a也可以是均为一侧开口的空心结构，第一部分11a的开口侧盖合于第二部分12a的开口侧。当然，第一部分11a和第二部分12a形成的箱体11可以是多种形状，比如，圆柱体、长方体等。
在电池101中，电池单体10可以是多个，多个电池单体10之间可串联或并联或混联，混联是指多个电池单体10中既有串联又有并联。多个电池单体10之间可直接串联或并联或混联在一起，再将多个电池单体10构成的整体容纳于箱体11内；当然，电池101也可以是多个电池单体10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11内。电池101还可以包括其他结构，例如，该电池101还可以包括汇流部件，用于实现多个电池单体10之间的电连接。
请参见图3-4所示，图3为本申请的集流体组件的第一实施例的结构示意图；图4为图3所示集流体的第一实施例的结构示意图。本实施例的集流体组件20包括多个集流体21，多个集流体21是指两个或者两个以上的集流体21；集流体21是指用于汇集冷却液体的部件，冷却液体包括但不限于水。
每个集流体21包括主体部211、第一端部212和第二端部213，第一端部212和第二端部213位于主体部211的相对两侧，集流体组件20中的一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接。
主体部211的相对两侧是指主体部211的两个侧面，且主体部211的两个侧面相对设置。第一端部212和第二端部213位于主体部211的相对两侧，即第一端部212设置于主体部211的一个侧面，第二端部213设置于主体部211的另一个侧面，主体部211的一个侧面与主体部211的另一个侧面相对设置。
集流体组件20中的一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接是指：利用一个集流体21的第二端部213与另一个集流体21的第一端部212的过盈配合来实现连接。
可选地，在同一集流体21中，第一端部212具有第一通孔，第二端部213具有第二通孔，第一端部212的第一通孔与第二端部213的第二通孔连通，用于形成汇集冷却液的流道。
其中，一个集流体21的第二端部213与另一个集流体21的第一端部212的过盈配合是指，一个集流体21的第二端部213的尺寸大于另一个集流体21的第一端部212的第一通孔的尺寸，将一个集流体21的第二端部213装配在另一个集流体21的第一通孔内；第二端部213的尺寸是指第二端部213的横截面面积。
可选地，一个集流体21中的主体部211、第一端部212和第二端部213一体成型，以提高集流体21的密封性。
可选地，第一通孔的形状和第二通孔的形状包括但不限于圆形、矩形、椭圆形 或长方形等。
本实施例通过集流体组件20中的一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接，能够实现集流体组件20中的两个集流体21直接装配，减少使用转接管，省去插接转接管的工序，降低集流体组件20装配的复杂度，降低成本；此外，集流体组件20中的两个集流体21直接装配，能够减少连接管与两个集流体之间的连接点，降低集流体组件20失效的风险。
根据本申请的一些实施例，第二端部213的横截面面积小于第一端部212的横截面面积，以使集流体组件20中的一个集流体21的第二端部213位于集流体组件20中的另一个集流体21的第一端部212内。
第二端部213的横截面是指在第二端部213中，与第二端部213的延伸方向垂直的平面所截得的截面；第一端部212的横截面是指在第一端部212中，与第一端部212的延伸方向垂直的平面所截得的截面。
其中，第二端部213的横截面面积小于第一端部212的横截面面积，且第二端部213的横截面面积大于第一端部212的第一通孔的面积，以将一个集流体21的第二端部213装配在另一个集流体21的第一通孔内，实现集流体组件20中的一个集流体21的第二端部213位于集流体组件20中的另一个集流体21的第一端部212内。
本实施例通过设置第二端部213的横截面面积小于第一端部212的横截面面积，便于集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，降低集流体组件20装配的复杂度。
根据本申请的一些实施例，第一端部212和第二端部213均呈扁管状。
扁管是指具有扁平形状的管道，即第一端部212的形状和第二端部213的形状均呈扁平形状，以使第一端部212的第一通孔的形状和第二端部213的第二通孔的形状均呈扁平形状。
假设第一端部212的第一通孔的形状和第二端部213的第二通孔的形状均为圆形，需要增加流经第一通孔和第二通孔的冷却液的流量，则需要增加第一通孔和第二通孔的直径。而本实施例的第一端部212和第二端部213均呈扁管状，假设需要增加流经第一通孔和第二通孔的冷却液的流量，则增加第一端部212的高度和第二端部213的高度，能够降低集流体21所占用的空间。
本实施例的第一端部212和第二端部213均呈扁管状，能够增加第一端部212的横截面面积和第二端部213的横截面面积，降低集流体21所占用的空间。
根据本申请的一些实施例，第二端部213的横截面面积沿第二端部213的延伸方向变小。
第二端部213的延伸方向是指，第二端部213往远离主体部211的方向。第二端部213的横截面面积沿第二端部213的延伸方向变小，可以为第二端部213的横截面面积沿第二端部213的延伸方向逐渐变小；例如第二端部213为锥形体，第二端部213靠近主体部211的横截面面积大于第二端部213远离主体部211的横截面面积。
以第二端部213的横截面面积沿第二端部213的延伸方向逐渐变小为例，第二端部213远离主体部211的横截面面积较小，便于第二端部213装配至另一个集流体21的第一端部212。位于另一个集流体21的第一端部212内的第二端部213的横截面面积逐渐增大，能够实现集流体组件20中的一个集流体21的第二端部213与另一个集流体21的第一端部212过盈连接，提高第二端部213与另一个集流体21的第一端部212之间的密封性。此外，由于第二端部213的横截面面积沿第二端部213的延伸方向逐渐变小，因此第二端部213的外表面为倾斜面，具有导向作用，进一步方便于第二端部213装配至另一个集流体21的第一端部212。
本实施例通过第二端部213的横截面面积沿第二端部213的延伸方向变小，能够实现集流体组件20中的一个集流体21的第二端部213与另一个集流体21的第一端部212过盈连接，提高第二端部213和第一端212部之间的密封性；此外，第二端部213的横截面面积沿第二端部213的延伸方向逐渐变小，以使第二端部213的外表面倾斜设置，以具有导向作用。
根据本申请的一些实施例，每个集流体21包括至少一个第一密封件22，第一密封件22设置于第二端部213上。至少一个第一密封件22可以包括一个第一密封件22或者多个第一密封件22。
其中，第一密封件22设置于第二端部213的外表面，在一个集流体21的第二端部213与另一个集流体21的第一端部212过盈连接的情况下，第一密封件22位于一个集流体21的第二端部213与另一个集流体21的第一端部212之间，第一密封件22用于密封一个集流体21的第二端部213与另一个集流体21的第一端部212之间的间隙，提高集流体组件20的密封性。
可选地，第一密封件22包括但不限于密封圈，第一密封件22套设于第二端部213上。在其他实施例中，第一密封件22和第二端部213可以一体成型。
本实施例通过在第二端部213上设置第一密封件22，在集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内的情况下，第一密封件22位于第二端部213和第一端部212之间，用于密封第二端部213和第一端部212之间间隙，提高集流体组件20的密封性。
根据本申请的一些实施例，每个集流体21还包括两个第一密封件22，两个第一密封件22沿第二端部213的延伸方向间隔设置于第二端部213上。
其中，两个第一密封件22间隔设置于第二端部213的外表面，在一个集流体21的第二端部213与另一个集流体21的第一端部212过盈连接的情况下，两个第一密封件22位于一个集流体21的第二端部213与另一个集流体21的第一端部212之间，两个第一密封件22用于密封一个集流体21的第二端部213与另一个集流体21的第一端部212之间的间隙，进一步提高集流体组件20的密封性。
本实施例的两个第一密封件22间隔设置于第二端部213上，通过两个第一密封件22密封一个集流体21的第二端部213与另一个集流体21的第一端部212之间间隙，进一步提高集流体组件20的密封性，提高集流体组件20的质量。
根据本申请的一些实施例，每个集流体21还包括第一导向部214，第一端部212的一端连接主体部211，第一端部212的另一端连接第一导向部214。
其中，第一导向部214用于引导一个集流体21的第二端部213装配在第一端部212内，即第一导向部214具有导向作用。
本实施例在第一端部212的另一端设置有第一导向部214，第一导向部214用于引导集流体组件20中的一个集流体21的第二端部213装配在集流体21的第一端部212内，提高集流体组件20的装配效率。
根据本申请的一些实施例，第一导向部214的横截面面积沿第一端部212的延伸方向变大。
其中，第一端部212的延伸方向是指第一端部212往远离主体部211的方向。
第一导向部214的横截面面积沿第一端部212的延伸方向变大，即第一导向部214的横截面面往远离主体部211的方向上逐渐变大。例如，第一导向部214呈喇叭状，即第一导向部214远离主体部211的一端的横截面面积较大，利于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内。此外，一个集流体21的第二端部213装配在另一个集流体21的第一端部212的过程 中，由于装配工具的尺寸公差和/或集流体21的尺寸公差导致出现装配公差，而第一导向部214远离主体部211的一端的横截面面积较大，能够吸收一个集流体21的第二端部213装配在另一个集流体21的第一端部212之间的装配公差。
本实施例的第一导向部214的横截面面积沿第一端部212的延伸方向变大，第一导向部214远离主体部212的一端的横截面面积较大，利于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内。
请参见图5-6所示，图5为本申请的集流体组件的第二实施例的结构示意图；图6为图5所示集流体的第二实施例的结构示意图。本实施例的集流体组件20包括多个集流体21，每个集流体21包括主体部211、第一端部212和第二端部213，第一端部212和第二端部213位于主体部211的相对两侧，集流体组件20中的一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接。
可选地，第二端部213的横截面面积小于第一端部212的横截面面积，且第一端部212和第二端部213均呈扁管状。
根据本申请的一些实施例，每个集流体21还包括第二导向部215，第二导向部215与第二端部213远离主体部211的一端连接。
其中，第二端部213的一端与主体部211连接，第二端部213的另一端与第二导向部215连接。在一个集流体21的第二端部213装配在另一个集流体21的第一端部212的过程中，第二导向部215用于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，提高集流体组件20的装配效率。
可选地，第二导向部215与第二端部213连接的一端的横截面面积大于第二端部213的横截面面积，以使第二导向部215和第二端部213的连接处形成台阶。
可选地，第二导向部215与第二端部213连接的一端的横截面面积大于第一端部212的第一通孔的横截面面积，以使一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接。
本实施例在第二端部213远离主体部211的一端设置有第二导向部215，第二导向部215用于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，提高集流体组件20的装配效率。
根据本申请的一些实施例，第二导向部215的横截面面积沿第二端部213的延伸方向变小。
其中，第二端部213的延伸方向是指第二端部213远离主体部211的方向；第二导向部215的横截面面积沿第二端部213的延伸方向变小，例如第二导向部215的横截面面积沿第二端部213的延伸方向逐渐变小，即第二导向部215远离第二端部213的一端的横截面面积较小，便于第二端部213通过第二导向部215装配在另一个集流体21的第一端部212内；此外，第二导向部215的横截面面积沿第二端部213的延伸方向逐渐变小，第二导向部215的外表面为倾斜面，具有导向作用。
本实施例在第二端部213远离主体部211的一端设置有第二导向部215，用于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，提高集流体组件20的装配效率。
根据本申请的一些实施例，每个集流体21还包括第二密封件23，第二密封件23设置于第一端部212的内侧壁。
可选地，第二密封件23设置于第一端部212远离主体部211的一端的内侧壁；集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，即第二密封件23位于第一端部212和第二端部213之间，用于密封一个 集流体21的第二端部213和另一个集流体21的第一端部212之间的间隙，提高集流体组件20的密封性。
可选地，第二密封件23的材料包括但不限于软胶或密封圈，软胶是指塑料通过注塑形成，即在第一端部212远离主体部211的一端的内侧壁，设置塑料通过注塑形成，以在第一端部212的内侧壁形成第二密封件23。
可选地，第二密封件23与第一端部212可以一体成型。
本实施例的第二密封件23设置于第一端部212的内侧壁，集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，即第二密封件23位于第一端部212和第二端部213之间，用于密封一个集流体21的第二端部213和另一个集流体21的第一端部212之间的间隙，提高集流体组件20的密封性。
请参见图7-8所示，图7为本申请的集流体组件的第三实施例的结构示意图；图8为图7所示集流体的第三实施例的结构示意图。本实施例的集流体组件20包括多个集流体21，每个集流体21包括主体部211、第一端部212和第二端部213，第一端部212和第二端部213位于主体部211的相对两侧，集流体组件20中的一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接。
本实施例的集流体组件20与图5所揭示的集流体组件20不同之处在于：每个集流体21还包括第一导向部214，第一端部212的一端连接主体部211，第一端部212的另一端连接第一导向部214。
其中，第一导向部214用于引导一个集流体21的第二端部213装配在第一端部212内，即第一导向部214具有导向作用。
本实施例在第一端部212的另一端设置有第一导向部214，第一导向部214用于引导集流体组件20中的一个集流体21的第二端部213装配在集流体21的第一端部212内，提高集流体组件20的装配效率。
根据本申请的一些实施例，第一导向部214的横截面面积沿第一端部212的延伸方向变大。
第一导向部214的横截面面积沿第一端部212的延伸方向变大，即第一导向部214的横截面面往远离主体部211的方向上逐渐变大。例如，第一导向部214呈喇叭状，即第一导向部214远离主体部211的一端的横截面面积较大，利于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内。此外，一个集流体21的第二端部213装配在另一个集流体21的第一端部212的过程中，由于装配工具的尺寸公差和/或集流体21的尺寸公差导致出现装配公差，而第一导向部214远离主体部211的一端的横截面面积较大，能够吸收一个集流体21的第二端部213装配在另一个集流体21的第一端部212之间的装配公差。
本实施例的第一导向部214的横截面面积沿第一端部212的延伸方向变大，第一导向部214远离主体部212的一端的横截面面积较大，利于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内。
根据本申请的一些实施例，每个集流体21还包括第二密封件23，第二密封件23设置于第一导向部214的内侧壁。
可选地，集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，即第二密封件23位于第一导向部214和第二端部213之间，用于密封一个集流体21的第二端部213和另一个集流体21的第一导向部214之间的间隙，提高集流体组件20的密封性。
可选地，第二密封件23的材料包括但不限于软胶或密封圈，软胶是指塑料通过注塑形成，即在第一导向部214的内侧壁设置塑料通过注塑形成，以在第一导向部 214的内侧壁形成第二密封件23。
可选地，第二密封件23与第一导向部214可以一体成型。
本申请提供一种液冷系统，请参见图9所示，图9为本申请的电池的第二实施例的分解结构示意图。本实施例的液冷系统包括多个液冷板31和集流体组件20，集流体组件20为上述实施例所揭示的集流体组件20，在此不再赘述。
多个液冷板31是指两个或两个以上的液冷板31。例如，冷却液体为水，则液冷板31为水冷板。多个液冷板31间隔设置，例如多个液冷板31沿着液冷板31的宽度方向D间隔设置。
每个液冷板31沿液冷板31的长度方向L设置有至少一个冷却通道，冷却通道用于传输冷却液体，比如冷却通道用于传输水。
集流体组件20中的集流体21设置于液冷板31的一端，集流体21的主体部211具有第一集流通道，主体部211的第一集流通道与冷却通道连通。
可选地，液冷系统包括两个集流体组件20，一个集流体组件20设置于液冷板31的一端，另一个集流体组件20设置于液冷板31的另一端。液冷板31的相对两端均设置有集流体21，以使冷却通道的两端分别与对应的集流体21的第一集流通道连通。
本实施例的液冷系统包括多个液冷板31和集流体组件20，集流体组件20中的集流体21设置于液冷板31的一端，以使主体部211的第一集流通道与冷却通道连通，进而液冷板31通过集流体组件20实现传输冷却液体。
根据本申请的一些实施例，集流体21的第一端部212和第二端部213具有第二集流通道，第二集流通道和第一集流通道连通。
其中，第一端部212的第一通孔和第二端部213的第二通孔连通，以形成第一端部212和第二端部213的第二集流通道，第二集流通道和第一集流通道连通。
可选地，冷却液体在第一集流通道的流动方向与冷却液体在第二集流通道的流动方向垂直。
可选地，液冷系统还包括进水管32和出水管33，进水管32与两个集流体组件20中的一个集流体组件20连接，例如进水管32与一个集流体组件20中的集流体21的第一端部212或第二端部213连通。出水管33与两个集流体组件20中的另一个集流体组件20连接，例如出水管33与另一个集流体组件20中的集流体21的第一端部212或第二端部213连通。
通过上述方式，冷却液体通过进水管32和集流体组件20流入所有液冷板31的冷却通道，然后通过集流体组件20和出水管33流出，以实现水冷冷却。
本申请提供一种电池的箱体，如图9所示，箱体11用于容纳电池单体10，其中箱体11包括液冷系统，液冷系统为上述实施例的液冷系统，在此不再赘述。
液冷系统的液冷板31贴靠电池单体10，以对电池单体10进行冷却。例如，冷却液体通过集流体组件20流经液冷板31，以使液冷板31通过冷却液体对电池单体10进行冷却。
可选地，箱体11还包括上盖11a和下箱体12a，上盖11a和下箱体12a相互盖盒，上盖11a和下箱体12a共同限定出用于容纳电池单体10和液冷系统的容纳空间。
本申请提供一种电池，如图9所示，电池101包括电池单体10和箱体11，箱体11用于容纳电池单体10，箱体11为上述实施例的箱体11，在此不再赘述。
本申请提供一种电池，如图9所示，电池101包括多个电池单体10和液冷系统，多个电池单体10中的至少部分电池单体10设置于液冷系统中相邻的两个液冷板31之间；液冷系统用于对至少部分电池单体10中的每个电池单体10的两个相对侧面进行冷却。
例如，所有的电池单体10设置于液冷系统中相邻的两个液冷板31之间，液冷系统用于对所有的电池单体10的两个相对侧面进行冷却，以对电池单体10产生的热量进行散热，提高散热效率。
可选地，如图9所示，集流体21的高度方向与液冷板31的高度方向H相同，由于每个集流体21的第一端部212和第二端部213均呈扁管状，即集流体21的第一端部212和第二端部213在液冷板31的高度方向H上占用电池101的空间，能够减少集流体21占用电池101的空间，提高电池101的能量密度。
假设需要增加第一端部212的横截面面积和第二端部213的横截面面积，则第一端部212和第二端部213在液冷板31的高度方向H上进行增加，无需增加第一端部212和第二端部213在液冷板31的长度方向L和宽度方向D上所占用的空间，因此能够减少集流体21占用电池101的空间，提高电池101的能量密度。
本申请提供一种用电装置，本实施的用电装置包括电池101，电池101为上述实施例的电池101，在此不再赘述。
请参见图10-11所示，图10为本申请的集流体组件的第四实施例的结构示意图；图11为图10所示集流体的第四实施例的结构示意图。本实施例的集流体组件20包括多个集流体21，每个集流体21包括主体部211、第一端部212和第二端部213，第一端部212和第二端部213位于主体部211的相对两侧，集流体组件20中的一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接。
可选地，第二端部213的横截面面积小于第一端部212的横截面面积，且第一端部212和第二端部213均呈圆柱状。
其中，第一端部212和第二端部213均呈圆柱状是指，第一端部212和第二端部213均为圆形管，且第二端部213的直径小于第一端部212的直径。
根据本申请的一些实施例，每个集流体21还包括第一导向部214和第二导向部215。
第一端部212的一端连接主体部211，第一端部212的另一端连接第一导向部214。其中，第一导向部214用于引导一个集流体21的第二端部213装配在第一端部212内，即第一导向部214具有导向作用。
本实施例在第一端部212的另一端设置有第一导向部214，第一导向部214用于引导集流体组件20中的一个集流体21的第二端部213装配在集流体21的第一端部212内，提高集流体组件20的装配效率。
其中，第一导向部214的横截面面积沿第一端部212的延伸方向变大，即第一导向部214的横截面面往远离主体部211的方向上逐渐变大。例如，第一导向部214呈喇叭状，即第一导向部214远离主体部211的一端的横截面面积较大，利于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内。
可选地，第一导向部214的内侧壁的材料包括但不限于软胶，软胶是指塑料通过注塑形成，即在第一导向部214的内侧壁，设置塑料通过注塑形成，以在第一导向部214的内侧壁壁形成软胶。
其中，第二端部213的一端与主体部211连接，第二端部213的另一端与第二导向部215连接。在一个集流体21的第二端部213装配在另一个集流体21的第一端部212的过程中，第二导向部215用于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，提高集流体组件20的装配效率。
可选地，第二导向部215与第二端部213连接的一端的横截面面积大于第二端部213的横截面面积，以使第二导向部215和第二端部213的连接处形成台阶。
可选地，第二导向部215与第二端部213连接的一端的横截面面积大于第一端部212的第一通孔的横截面面积，以使一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接。
本实施例在第二端部213远离主体部211的一端设置有第二导向部215，第二导向部215用于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，提高集流体组件20的装配效率。
其中，第二导向部215的横截面面积沿第二端部213的延伸方向变小。第二端部213的延伸方向是指第二端部213远离主体部211的方向；第二导向部215的横截面面积沿第二端部213的延伸方向变小，例如第二导向部215的横截面面积沿第二端部213的延伸方向逐渐变小，即第二导向部215远离第二端部213的一端的横截面面积较小，便于第二端部213通过第二导向部215装配在另一个集流体21的第一端部212内；此外，第二导向部215的横截面面积沿第二端部213的延伸方向逐渐变小，第二导向部215的外表面为倾斜面，具有导向作用。
本实施例在第二端部213远离主体部211的一端设置有第二导向部215，用于引导集流体组件20中的一个集流体21的第二端部213装配在另一个集流体21的第一端部212内，提高集流体组件20的装配效率。
本申请提供一种电池，请参见图12所示，图12为本申请的电池的第三实施例的分解结构示意图。本实施例的电池101包括多个电池单体10和液冷系统，多个电池单体10中的至少部分电池单体10设置于液冷系统中相邻的两个液冷板31之间；液冷系统用于对至少部分电池单体10中的每个电池单体10的两个相对侧面进行冷却。其中，液冷系统包括多个液冷板31和集流体组件20，集流体组件20为如图8所示的集流体组件20，在此不再赘述。
综上所述，本申请的通过集流体组件20中的一个集流体21的第二端部213与集流体组件20中的另一个集流体21的第一端部212过盈连接，能够实现集流体组件20中的两个集流体21直接装配，减少使用转接管，省去插接转接管的工序，降低集流体组件20装配的复杂度，降低成本；此外，集流体组件20中的两个集流体21直接装配，能够减少连接管与两个集流体之间的连接点，降低集流体组件20失效的风险。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (19)

  1. 一种集流体组件，其特征在于，所述集流体组件包括多个集流体，每个所述集流体包括主体部、第一端部和第二端部，所述第一端部和所述第二端部位于所述主体部的相对两侧，所述集流体组件中的一个集流体的第二端部与所述集流体组件中的另一个集流体的第一端部过盈连接。
  2. 根据权利要求1所述的集流体组件，其特征在于，所述第二端部的横截面面积小于所述第一端部的横截面面积，以使所述集流体组件中的一个集流体的第二端部位于所述集流体组件中的另一个集流体的第一端部内。
  3. 根据权利要求2所述的集流体组件，其特征在于，所述第一端部和所述第二端部均呈扁管状。
  4. 根据权利要求3所述的集流体组件，其特征在于，所述第二端部的横截面面积沿所述第二端部的延伸方向变小。
  5. 根据权利要求2所述的集流体组件，其特征在于，所述第一端部和所述第二端部均呈圆柱状。
  6. 根据权利要求4或5所述的集流体组件，其特征在于，每个所述集流体包括至少一个第一密封件，所述第一密封件设置于所述第二端部上。
  7. 根据权利要求6所述的集流体组件，其特征在于，每个所述集流体还包括两个所述第一密封件，两个所述第一密封件沿所述第二端部的延伸方向间隔设置于所述第二端部上。
  8. 根据权利要求4-7中任一项所述的集流体组件，其特征在于，每个所述集流体还包括第一导向部，所述第一端部的一端连接所述主体部，所述第一端部的另一端连接所述第一导向部。
  9. 根据权利要求8所述的集流体组件，其特征在于，所述第一导向部的横截面面积沿所述第一端部的延伸方向变大。
  10. 根据权利要求3所述的集流体组件，其特征在于，每个所述集流体还包括第二导向部，与所述第二端部远离所述主体部的一端连接。
  11. 根据权利要求10所述的集流体组件，其特征在于，所述第二导向部的横截面面积沿所述第二端部的延伸方向变小。
  12. 根据权利要求10或11所述的集流体组件，其特征在于，每个所述集流体还包括第二密封件，所述第二密封件设置于所述第一端部远离所述主体部的一端的内侧壁。
  13. 根据权利要求10或11所述的集流体组件，其特征在于，每个所述集流体还包括第一导向部和第二密封件，所述第一端部的一端连接所述主体部，所述第一端部的另一端连接所述第一导向部，所述第二密封件设置于所述第一导向部的内侧壁。
  14. 一种液冷系统，其特征在于，包括：
    多个液冷板，间隔设置，每个所述液冷板沿所述液冷板的长度方向设置有至少一个冷却通道；
    如权利要求1-13中任一项的所述集流体组件，所述集流体组件中的集流体设置于所述液冷板的一端，所述集流体的主体部具有第一集流通道，所述第一集流通道与所述冷却通道连通。
  15. 根据权利要求14所述的液冷系统，其特征在于，所述集流体的第一端部和第二端部具有第二集流通道，所述第二集流通道和所述第一集流通道连通。
  16. 一种电池的箱体，所述箱体用于容纳电池单体，其特征在于，包括如权利要求14或15所述的液冷系统，所述液冷系统的液冷板贴靠电池单体，以对所述电池单体进行冷却。
  17. 一种电池，其特征在于，包括：
    电池单体；
    如权利要求16所述的箱体，所述箱体用于容纳所述电池单体。
  18. 一种电池，其特征在于，包括：
    多个电池单体；
    如权利要求14或15所述的液冷系统，所述多个电池单体中的至少部分电池单体设置于所述液冷系统中相邻的两个液冷板之间，所述液冷系统用于对所述至少部分电池单体中的每个电池单体的两个相对侧面进行冷却。
  19. 一种用电装置，其特征在于，包括如权利要求18所述的电池。
PCT/CN2023/130236 2023-10-13 2023-11-07 集流体组件、液冷系统、电池的箱体、电池和用电装置 Ceased WO2025076897A1 (zh)

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CN218299917U (zh) * 2022-07-27 2023-01-13 湖北亿纬动力有限公司 一种电芯模组及动力电池
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CN219226418U (zh) * 2023-01-06 2023-06-20 小米汽车科技有限公司 液冷板总成、电池总成及车辆
CN219476783U (zh) * 2022-11-29 2023-08-04 华人运通(山东)科技有限公司 液冷板、液冷系统以及电池包

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CN219476783U (zh) * 2022-11-29 2023-08-04 华人运通(山东)科技有限公司 液冷板、液冷系统以及电池包
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