WO2024254932A1 - 箱体、电池及用电设备 - Google Patents

箱体、电池及用电设备 Download PDF

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Publication number
WO2024254932A1
WO2024254932A1 PCT/CN2023/107038 CN2023107038W WO2024254932A1 WO 2024254932 A1 WO2024254932 A1 WO 2024254932A1 CN 2023107038 W CN2023107038 W CN 2023107038W WO 2024254932 A1 WO2024254932 A1 WO 2024254932A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow channel
panel
medium
box body
box
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/CN2023/107038
Other languages
English (en)
French (fr)
Inventor
吴凯
陈选
石卫刚
王志
王增忠
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 EP23941161.4A priority Critical patent/EP4726888A1/en
Publication of WO2024254932A1 publication Critical patent/WO2024254932A1/zh
Priority to US19/416,524 priority patent/US20260100442A1/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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—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
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • 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
    • H01M10/615—Heating or keeping warm
    • 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
    • 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 batteries, and more specifically, to a box, a battery and an electrical device.
  • Batteries are widely used in the field of new energy, such as electric vehicles and new energy vehicles. New energy vehicles and electric vehicles have become a new trend in the development of the automotive industry. The development of battery technology must consider many design factors at the same time, such as battery life, discharge capacity, charge and discharge rate and other performance parameters. In addition, the energy density of the battery also needs to be considered. However, the energy density of current batteries is relatively low.
  • the purpose of the embodiments of the present application is to provide a box, a battery and an electrical device, which are intended to improve the problem of low energy density of batteries in related technologies.
  • an embodiment of the present application provides a box body, which includes an end plate, a panel and a medium flow channel, wherein the panel is connected to one end of the end plate; the medium flow channel is used to accommodate a heat exchange medium, and the medium flow channel is at least partially located on the end plate.
  • the medium flow channel has a medium inlet and a medium outlet, and the medium inlet and/or the medium outlet are arranged on the panel.
  • the box is provided with a medium flow channel, and the medium flow channel is used to pass the heat exchange medium to perform thermal management on the equipment in the box.
  • the medium flow channel is at least partially located in the end plate, and the medium inlet and/or medium outlet of the medium flow channel are arranged on the panel.
  • the heat exchange medium can directly enter and/or flow out of the medium flow channel through the medium inlet and/or medium outlet on the panel, which can reduce or eliminate the use of pipelines connecting the end plate and the panel, thereby reducing the occupation of the internal space of the box by the pipeline, which is conducive to improving the energy density of the battery.
  • the medium flow channel includes a first flow channel and a second flow channel, the first flow channel is arranged on the end plate, the second flow channel is arranged on the panel, the second flow channel is connected to the first flow channel, and the second flow channel forms the medium inlet or the medium outlet on the panel.
  • a first flow channel is provided on the end plate, and a second flow channel is provided on the panel, and the first flow channel and the second flow channel are connected, so that the heat exchange medium can be supplied to the first flow channel on the end plate through the second flow channel on the panel, or the heat exchange medium in the first flow channel can be made to flow out through the second flow channel, which can reduce or eliminate the use of pipelines connecting the end plate and the panel, thereby reducing the occupation of the internal space of the box by the pipelines, which is beneficial to improving the energy density of the battery.
  • the end plate includes a first surface, the first flow channel forms a first opening on the first surface, the panel includes a second surface, the second flow channel forms a second opening on the second surface, the first surface and the second surface are in contact with each other, and the first opening is at least partially opposite to the second opening, so that the first flow channel is connected to the second flow channel.
  • the first surface is fitted with the second surface, so that the first opening of the first flow channel and the second opening of the second flow channel are at least partially opposite to each other, thereby directly connecting the first flow channel and the second flow channel.
  • the second flow channel forms the medium inlet or the medium outlet on the surface of the panel facing away from the end plate.
  • the surface area of the panel away from the end plate is large, and it is convenient to set the medium inlet or medium outlet.
  • the medium inlet has a large avoidance space when connected to the medium supply pipeline, or the medium outlet has a large avoidance space when connected to the medium outflow pipeline.
  • There is a large avoidance space when connected so that the medium supply pipeline or the medium outflow pipeline is not easy to interfere with other components, which is conducive to simplifying installation and improving production efficiency.
  • the panel is connected to one end of the end plate, and the second flow channel penetrates two oppositely arranged surfaces of the panel along the first direction.
  • the second flow channel penetrate the two oppositely arranged surfaces of the panel along the first direction, on the one hand, it is easy to process and manufacture.
  • the length of the second flow channel is shorter, and the heat exchange medium can enter the first flow channel more quickly to exchange heat with the equipment inside the box, and the sensitivity of thermal management of the equipment inside the box is higher, or the heat exchange medium can leave the medium flow channel more quickly.
  • the second flow channel includes a first section and a second section, the first section is connected to the second section, the end of the first section facing away from the second section forms the medium inlet or the medium outlet, the second section is connected to the first flow channel, the cross-section of the first section is circular, and the cross-sections of the second section and the first flow channel are both square.
  • the first section forms a medium inlet or medium outlet on the panel, and the first section is used to communicate with the medium supply pipeline or the medium outflow pipeline. Therefore, the cross section of the first section is set to be circular to facilitate connection with the medium supply pipeline or the medium outflow pipeline.
  • the second section is used to communicate with the first flow channel.
  • the cross sections of the second section and the first flow channel are set to be square, which is conducive to reducing the flow rate of the heat exchange medium, so that the heat exchange medium can more fully exchange heat with the equipment in the box.
  • the cross section of the first flow channel is set to be square to reduce the manufacturing difficulty and cost and improve manufacturing efficiency.
  • the cross section of the second section is adapted to the cross section of the first flow channel.
  • the medium flow channel includes two second flow channels, the first flow channel connects the two second flow channels, one second flow channel has the medium inlet formed on the panel, and the other second flow channel has the medium outlet formed on the panel.
  • a first flow channel is arranged on the end plate, and two independent second flow channels are arranged on the panel.
  • the first flow channel connects the two second flow channels.
  • a heat exchange medium can be supplied to the first flow channel on the end plate through a second flow channel on the panel, and the heat exchange medium in the first flow channel can flow out through another second flow channel.
  • the panel along a first direction, is connected to one end of the end plate, the panel includes a plate body and a connecting portion, the connecting portion protrudes from the plate body along the first direction, the connecting portion connects the end plate and the plate body, and the medium flow channel is partially formed in the connecting portion.
  • the connecting portion protrudes from the plate body in the first direction, so as to facilitate connecting the panel to the end plate through the connecting portion, for example, to facilitate welding the connecting portion to the end plate.
  • the plate body is a wall of the accommodating space surrounding the box body, and the medium flow channel is partially formed in the connecting portion. After the connecting portion is connected to the end plate, the medium flow channel is located outside the accommodating space, and the heat exchange medium in the medium flow channel is not easy to cause damage to the equipment in the accommodating space.
  • the connecting portion is provided with a mounting structure, and the mounting structure is used to install internal equipment, and the internal equipment is accommodated in the box.
  • connection part by providing a mounting structure on the connection part, that is, integrating the mounting structure into the panel, it is convenient to mount and fix the internal equipment on the connection part. In this way, the number of equipment mounting beams can be reduced, making the box parts simpler. In addition, the number of equipment mounting beams is reduced, and the positions that need to be welded are also reduced accordingly, which is conducive to simplifying production and improving production efficiency.
  • the mounting structure includes a mounting hole, and the mounting hole is provided with an internal thread.
  • the mounting structure is a mounting hole provided on the connecting part, which is conducive to simplifying the structure of the box and reducing the weight of the box.
  • the mounting hole is provided with an internal thread, so that the internal device can cooperate with the mounting hole thread, thereby realizing the connection between the box body and the internal device, and the connection method is simple and convenient, and the stability is good.
  • the mounting hole is a blind hole.
  • the mounting hole is a blind hole, which means that the mounting hole will not penetrate the connecting part, reducing the influence of the setting of the mounting hole on the structural strength of the connecting part. It is also unnecessary to perform sealing treatment at the mounting hole, reducing the manufacturing difficulty of the box.
  • the connecting portion is provided with a plurality of the mounting structures, and the plurality of the mounting structures are arranged at intervals.
  • the connecting part is provided with a plurality of installation structures arranged at intervals, and a plurality of installation positions can be formed between the connecting part and the internal equipment, which can not only make the connection between the box body and the internal equipment more stable, but also reduce the load borne by each installation position.
  • the connecting portion is provided with a mounting structure, and the mounting structure is used to connect the box body with an external device, and the external device is located outside the box body.
  • connection part that is, integrating the mounting structure and the mounting structure into the panel, it is convenient to install and fix the external device on the connection part.
  • the number of mounting beams can be reduced, making the box parts simpler.
  • the number of mounting beams is reduced, and the positions that need to be welded are also reduced accordingly, which is conducive to simplifying production and improving production efficiency.
  • the mounting structure includes a mounting hole, and the mounting hole is provided with an internal thread.
  • the mounting structure is a mounting hole provided on the connecting part, which is conducive to simplifying the structure of the box and reducing the weight of the box.
  • the mounting hole is provided with an internal thread, so that the external device can cooperate with the mounting hole thread, thereby realizing the connection between the box body and the external device, and the connection method is simple and convenient, and the stability is good.
  • the mounting hole is a blind hole.
  • the mounting hole is a blind hole, which means that the mounting hole will not penetrate the connecting part, reducing the influence of the setting of the mounting hole on the structural strength of the connecting part. It is also unnecessary to perform sealing treatment at the mounting hole, reducing the manufacturing difficulty of the box.
  • the box body includes a mounting member arranged on the connecting part, and the mounting structure is arranged on the mounting member.
  • the mounting structure is arranged on the mounting part, and the connection between the box and the external device can be realized through the mounting part, making the connection between the box and the external device more convenient.
  • the mounting part is welded to the connecting part.
  • the mounting part and the connecting part are welded, which not only provides a convenient connection method, but also improves the connection strength between the mounting part and the connecting part, and has a greater load-bearing capacity.
  • the mounting component is a sleeve having an internal thread.
  • the mounting part is a sleeve and an internal thread is provided in the sleeve.
  • the mounting part cooperates with the thread of the external device to mount the box on the external device.
  • the mounting method is simple, convenient and stable.
  • the connecting portion is provided with a plurality of the mounting structures, and the plurality of the mounting structures are arranged at intervals.
  • the box includes a plurality of mounting structures arranged at intervals, and a plurality of mounting positions can be formed between the box and the external device, which not only makes the connection between the box and the external device more stable, but also reduces the load borne by each mounting position.
  • the plate body and the connecting part are integrally formed.
  • the integrity is good and the strength of the panel is high.
  • the box body includes a side panel, the side panel is arranged opposite to the panel, and the side panel is connected to the other end of the end panel.
  • a panel and a side panel opposite to the panel are arranged on the end wall, which can improve the box
  • it can not only provide structural strength, but also define the accommodating space for internal equipment so that the internal equipment can be stably assembled in the box.
  • the panel and the side panels protrude from the surface of the end panels.
  • the box body includes a first box body and a second box body, and the first box body and the second box body are separately arranged and connected; wherein, the second box body includes the end plate, the panel and the side plate, and the first box body, the end plate, the panel and the side plate jointly define a accommodating space.
  • the first box body and the second box body it is convenient to manufacture and assemble them separately to form the box body.
  • the end plate, the panel and the side plate are all located in the second box body.
  • an embodiment of the present application further provides a battery, comprising a battery cell and the above-mentioned box body, wherein the battery cell is accommodated in the box body.
  • an embodiment of the present application further provides an electrical device, wherein the electrical device comprises the above-mentioned battery, and the battery is used to provide electrical energy to the electrical device.
  • FIG1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.
  • FIG2 is a schematic diagram of the structure of a box provided in some embodiments of the present application.
  • FIG3 is an exploded view of a box provided in some embodiments of the present application.
  • FIG4 is a schematic structural diagram of a second box provided in some embodiments of the present application.
  • FIG5 is a cross-sectional view of a second box provided in some embodiments of the present application.
  • FIG6 is a schematic structural diagram of a second box provided in some other embodiments of the present application.
  • FIG7 is a cross-sectional view of a second box provided in some other embodiments of the present application.
  • FIG8 is a schematic structural diagram of a second box provided in some other embodiments of the present application.
  • FIG9 is a cross-sectional view of a second box provided in some other embodiments of the present application.
  • FIG10 is a schematic top view of a second box provided in some embodiments of the present application.
  • Fig. 11 is a cross-sectional view taken along the line A-A in Fig. 10;
  • FIG12 is a bottom view of a second box provided in some embodiments of the present application.
  • Fig. 13 is a cross-sectional view of the position B-B in Fig. 12;
  • FIG14 is a bottom view of a second box provided in some other embodiments of the present application.
  • Fig. 15 is a cross-sectional view of the position C-C in Fig. 14;
  • FIG. 16 is an enlarged view of position D in FIG. 15 .
  • Icons 10-box; 11-first box; 12-second box; 121-end plate; 1211-first surface; 122-panel; 1221-plate; 1222-connecting part; 12221-second surface; 1231-second flow channel; 12311-first section; 12312-second section; 1232-first flow channel; 1234-medium inlet; 1235-medium outlet; 124-installation structure; 125-mounting structure; 126-mounting part; 127-side panel; 13-seal; 100-battery; 200-controller; 300-motor; 1000-vehicle.
  • the terms “installed”, “connected”, “connected”, and “attached” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this application generally indicates that the associated objects before and after are in an "or" relationship.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in the present application may include a battery module or a battery pack, etc.
  • the battery generally includes a casing for encapsulating one or more battery cells.
  • the casing can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells to a certain extent.
  • the 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.
  • Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.
  • a water cooling plate is used to dissipate heat from the battery cell.
  • setting the water cooling plate in the box will occupy the internal space of the box and reduce the energy density of the battery.
  • the related technology sets the water cooling channel in the bottom plate, and forms a water cooling inlet and a water cooling outlet by opening two first through holes on the upper surface of the bottom plate.
  • two pipes are provided to connect the water cooling inlet and the water cooling outlet respectively, and a second through hole for the pipe to pass through the box is opened on the panel connected to one end of the bottom plate.
  • an embodiment of the present application provides a box body, which includes an end plate, a panel and a medium flow channel, and the panel is connected to One end of the end plate.
  • the medium flow channel is used to accommodate the heat exchange medium.
  • the medium flow channel is at least partially located on the end plate.
  • the medium flow channel has a medium inlet and a medium outlet, and the medium inlet and/or the medium outlet are arranged on the panel.
  • the box is provided with a medium flow channel, and the medium flow channel is used to pass a heat exchange medium to perform thermal management on the equipment in the box.
  • the medium flow channel is at least partially located in the end plate, and the medium inlet and/or medium outlet of the medium flow channel are arranged on the panel.
  • the heat exchange medium can directly enter and/or flow out of the medium flow channel through the medium inlet and/or medium outlet on the panel, which can reduce or eliminate the use of pipelines to connect the end plate and the panel, thereby reducing the occupation of the internal space of the box by the pipeline, which is conducive to improving the energy density of the battery.
  • Electrical equipment may be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and electric tools, etc.
  • Spacecraft include airplanes, rockets, space shuttles, and spacecrafts, etc.
  • electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.
  • electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.
  • the embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.
  • FIG. 1 is a schematic diagram of the structure of a vehicle 1000 provided in 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.
  • a battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided 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 be used as an operating power source for the vehicle 1000.
  • the vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for the starting, navigation and driving power requirements of the vehicle 1000.
  • the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve 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.
  • Figure 2 is a schematic diagram of the structure of the box 10 provided in some embodiments of the present application.
  • Figure 3 is an exploded view of the box 10 provided in some embodiments of the present application.
  • the battery 100 includes a box 10 and a battery cell, and the battery cell is contained in the box 10.
  • the box 10 is used to provide a storage space for the battery cell, and the box 10 can adopt a variety of structures.
  • the box 10 may include a first box 11 and a second box 12, the first box 11 and the second box 12 cover each other, and the first box 11 and the second box 12 jointly define a storage space for accommodating the battery cell.
  • the second box 12 can be a hollow structure with one end open, the first box 11 can be a plate-like structure, and the first box 11 covers the open side of the second box 12, so that the first box 11 and the second box 12 jointly define a storage space; the first box 11 and the second box 12 can also be hollow structures with one side open, and the open side of the first box 11 covers the open side of the second box 12.
  • the first box body 11 and the second box body 12 are both U-shaped structures.
  • the open end of the first box body 11 covers the open end of the second box body 12.
  • the box body 10 formed by the first box body 11 and the second box body 12 can be in various shapes, such as a cylinder, a cuboid, etc.
  • the battery 100 there may be multiple battery cells, and the multiple battery cells may be connected in series, in parallel, or in a mixed connection.
  • a mixed connection means that the multiple battery cells are both connected in series and in parallel.
  • the multiple battery cells may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells may be accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells in series, in parallel, or in a mixed connection, and then the multiple battery modules may be connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10.
  • the battery 100 may also include other structures, for example, the battery 100 may also include a converging component for realizing electrical connection between the multiple battery cells.
  • Each battery cell may be a secondary battery cell or a primary battery cell, or a lithium-sulfur battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, but is not limited thereto.
  • the battery cell may be cylindrical, flat, rectangular, or in other shapes.
  • Figure 4 is a schematic diagram of the structure of the second box 12 provided in some embodiments of the present application.
  • Figure 5 is a cross-sectional view of the second box 12 provided in some embodiments of the present application.
  • the present application embodiment provides a box 10, the box 10 includes an end plate 121, a panel 122 and a medium flow channel, and the panel 122 is connected to one end of the end plate 121.
  • the medium flow channel is used to accommodate a heat exchange medium, and the medium flow channel is at least partially located on the end plate 121.
  • the medium flow channel has a medium inlet 1234 and a medium outlet 1235 , the medium inlet 1234 and/or the medium outlet 1235 are disposed on the panel 122 .
  • the end plate 121 may be any wall constituting the box 10. In order to improve the heat exchange effect between the heat exchange medium in the medium flow channel and the equipment in the box 10, the end plate 121 may be the wall with the largest area in the box 10. Optionally, the end plate 121 is the bottom plate of the box 10. In this way, the end plate 121 can fit the equipment in the box 10, thereby improving the heat exchange effect.
  • the panel 122 is a wall connected to one end of the end plate 121.
  • the panel 122 may be a wall for setting a high-pressure output and a low-pressure output.
  • the medium flow channel is a channel for the heat exchange medium to flow.
  • the heat exchange medium exchanges heat with the equipment in the box 10, thereby managing the temperature of the equipment in the box 10.
  • the heat exchange medium can be a liquid medium, such as water, oil, etc.
  • the heat exchange medium can also be a gas medium, such as air.
  • the medium flow channel may be partially disposed on the end plate 121 and partially disposed on the panel 122.
  • the medium flow channel may also be entirely disposed in the end plate 121, in which case the medium flow channel may be connected to the medium flow channel through a pipeline, thereby supplying heat exchange medium to the medium flow channel or allowing the heat exchange medium in the medium flow channel to flow out.
  • the medium inlet 1234 is an opening for the heat exchange medium to flow into the medium flow channel.
  • the medium outlet 1235 is an opening for the heat exchange medium to flow out of the medium flow channel.
  • the medium flow channel is provided with a medium inlet 1234 and a medium outlet 1235, and the medium inlet 1234 and the medium outlet 1235 are respectively located at the two ends of the medium flow channel.
  • multiple medium inlets 1234 and/or multiple medium outlets 1235 can also be provided.
  • the panel 122 may be provided with only the medium inlet 1234 , or only the medium outlet 1235 , or both the medium inlet 1234 and the medium outlet 1235 , and the number of the medium inlets 1234 and the medium outlets 1235 is not limited.
  • the housing 10 is provided with a medium flow channel, and the medium flow channel is used to pass a heat exchange medium to perform thermal management on the equipment in the housing 10.
  • the medium flow channel is at least partially located at the end plate 121, and the medium inlet 1234 and/or the medium outlet 1235 of the medium flow channel are provided on the panel 122.
  • the heat exchange medium can directly enter and/or flow out of the medium flow channel through the medium inlet 1234 and/or the medium outlet 1235 on the panel 122, which can reduce or eliminate the use of pipelines to connect the end plate 121 and the panel 122, thereby reducing the occupation of the internal space of the housing 10 by the pipeline, which is beneficial to improving the energy density of the battery 100.
  • the medium flow channel includes a first flow channel 1232 and a second flow channel 1231, wherein the first flow channel 1232 is disposed on the end plate 121, and the second flow channel 1231 is disposed on the panel 122.
  • the second flow channel 1231 is connected to the first flow channel 1232.
  • the second flow channel 1231 is formed with a medium inlet 1234 or a medium outlet 1235 on the panel 122.
  • the first flow channel 1232 is a part of the medium flow channel disposed on the end plate 121.
  • the second flow channel 1231 is a part of the medium flow channel disposed on the panel 122.
  • One end of the second flow channel 1231 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122, and the other end of the second flow channel 1231 is connected to the first flow channel 1232.
  • the second flow channel 1231 is connected to the first flow channel 1232 may mean that the second flow channel 1231 is directly connected to the first flow channel 1232, or the second flow channel 1231 is indirectly connected to the first flow channel 1232, for example, the second flow channel 1231 is indirectly connected to the first flow channel 1232 through a pipeline.
  • the second flow channel 1231 is directly connected to the first flow channel 1232, and no pipeline is required between the second flow channel 1231 and the first flow channel 1232, thereby reducing the occupancy of the pipeline in the internal space of the box body 10, which is beneficial to improving the energy density of the battery 100.
  • a first flow channel 1232 is provided on the end plate 121, and a second flow channel 1231 is provided on the panel 122.
  • the first flow channel 1232 and the second flow channel 1231 are connected, so that the heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through the second flow channel 1231 on the panel 122, or the heat exchange medium in the first flow channel 1232 can flow out through the second flow channel 1231, which can reduce or eliminate the use of pipelines connecting the end plate 121 and the panel 122, thereby reducing the occupation of the internal space of the box body 10 by the pipelines, which is beneficial to improving the energy density of the battery 100.
  • the end plate 121 includes a first surface 1211, and the first flow channel 1232 forms a first opening on the first surface 1211.
  • the panel 122 includes a second surface 12221, and the second flow channel 1231 forms a second opening on the second surface 12221.
  • the first surface 1211 and the second surface 12221 are attached to each other, and the first opening is at least partially opposite to the second opening, so that the first opening is at least partially opposite to the second opening, so that the second opening is at least partially opposite to the first opening, so that the first opening is at least partially opposite to the second ...
  • the first flow channel 1232 is communicated with the second flow channel 1231 .
  • the first surface 1211 refers to the surface of the end plate 121 facing the panel 122 .
  • the second surface 12221 refers to the surface of the panel 122 facing the end plate 121 .
  • the first flow channel 1232 extends to the first surface 1211 and forms a first opening on the first surface 1211.
  • the second flow channel 1231 extends to the second surface 12221 and forms a second opening on the second surface 12221.
  • one end of the second flow channel 1231 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122, and the other end of the second flow channel 1231 forms a second opening on the second surface 12221.
  • the first surface 1211 and the second surface 12221 are in contact with each other, and the first opening and the second opening are at least partially opposite to each other, so that the first flow channel 1232 is connected to the second flow channel 1231, and the heat exchange medium can enter the first flow channel 1232 from the second flow channel 1231 through the second opening and the first opening, or the heat exchange medium can enter the second flow channel 1231 from the first flow channel 1232 through the first opening and the second opening.
  • the first opening is at least partially opposite to the second opening includes two solutions: the first opening is partially opposite to the second opening and the first opening is completely opposite to the second opening.
  • the projections of the first opening and the second opening may completely overlap, or the projection of one may fall within the projection range of the other.
  • the first surface 1211 fits with the second surface 12221, so that the first opening of the first flow channel 1232 is at least partially opposite to the second opening of the second flow channel 1231, thereby directly connecting the first flow channel 1232 and the second flow channel 1231.
  • the first flow channel 1232 and the second flow channel 1231 do not need to be connected by a pipeline, which reduces the occupation of the internal space of the box 10 by the pipeline, which is conducive to improving the energy density of the battery 100.
  • the second flow channel 1231 forms a medium inlet 1234 or a medium outlet 1235 on a surface of the panel 122 away from the end plate 121 .
  • the panel 122 is connected to one end of the end plate 121.
  • the first direction may be the x direction shown in the figures.
  • the panel 122 has a second surface 12221 and a third surface opposite to each other, wherein the second surface 12221 is disposed facing the end plate 121 , the third surface is disposed away from the end plate 121 , and the medium inlet 1234 or the medium outlet 1235 is formed on the third surface.
  • the surface area of the panel 122 facing away from the end plate 121 is relatively large, and it is convenient to set the medium inlet 1234 or the medium outlet 1235.
  • the medium inlet 1234 has a large avoidance space when connected to the medium supply pipeline, or the medium outlet 1235 has a large avoidance space when connected to the medium outflow pipeline, so that the medium supply pipeline or the medium outflow pipeline is not easy to interfere with other components, which is conducive to simplifying installation and improving production efficiency.
  • a sink groove may be provided on a side of the panel 122 away from the end plate 121 , and the medium inlet 1234 or the medium outlet 1235 may be provided on the bottom wall of the sink groove.
  • the panel 122 is connected to one end of the end plate 121 along the first direction, and the second flow channel 1231 penetrates two oppositely disposed surfaces of the panel 122 along the first direction.
  • the panel 122 is connected to one end of the end plate 121.
  • the first direction may be the x direction shown in the figures.
  • the second flow channel 1231 extends along the first direction and can extend from the surface of the panel 122 away from the end plate 121 to the surface of the panel 122 facing the end plate 121, that is, from the third surface to the second surface 12221. At this time, the second flow channel 1231 is a straight flow channel.
  • the second flow channel 1231 penetrates the two oppositely disposed surfaces of the panel 122 along the first direction, on the one hand, it is easy to process and manufacture.
  • the second flow channel 1231 is shorter in length, and the heat exchange medium can enter the first flow channel 1232 more quickly to exchange heat with the equipment inside the box 10, so that the sensitivity of thermal management of the equipment inside the box 10 is higher, or the heat exchange medium can leave the medium flow channel more quickly.
  • the second flow channel 1231 may be a curved flow channel or a bent flow channel.
  • 1231 may include a first portion, a second portion and a third portion, wherein the first portion extends along a first direction, the second portion extends along a direction perpendicular to the first direction, and the third portion extends along the first direction.
  • the second portion connects the first portion and the second portion.
  • the first portion forms a medium inlet 1234 or a medium outlet 1235 on the panel 122
  • the third portion forms a second opening on the panel 122.
  • the second flow channel 1231 includes a first section 12311 and a second section 12312, and the first section 12311 is connected to the second section 12312.
  • the end of the first section 12311 away from the second section 12312 forms a medium inlet 1234 or a medium outlet 1235, and the second section 12312 is connected to the first flow channel 1232.
  • the cross section of the first section 12311 is circular, and the cross sections of the second section 12312 and the first flow channel 1232 are both square.
  • the first section 12311 and the second section 12312 are two parts of the second flow channel 1231, wherein the first section 12311 is further away from the first flow channel 1232 than the second section 12312.
  • One end of the first section 12311 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122, and the other end of the first section 12311 can be connected to the second section 12312.
  • the second section 12312 connects the first section 12311 and the first flow channel 1232.
  • one end of the second section 12312 is connected to the first section 12311, and the other end of the second section 12312 forms a second opening on the panel 122.
  • the “cross section of the first segment 12311” refers to the cross section of the first segment 12311 perpendicular to its extension direction.
  • the “cross section of the second segment 12312 and the first flow channel 1232” refers to the cross section of the second segment 12312 perpendicular to its extension direction and the cross section of the first flow channel 1232 perpendicular to its extension direction.
  • the first section 12311 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122.
  • the first section 12311 is used to communicate with the medium supply pipeline or the medium outflow pipeline. Therefore, the cross section of the first section 12311 is set to be circular to facilitate connection with the medium supply pipeline or the medium outflow pipeline.
  • the second section 12312 is used to communicate with the first flow channel 1232.
  • the cross sections of the second section 12312 and the first flow channel 1232 are set to be square, which is conducive to reducing the flow rate of the heat exchange medium, so that the heat exchange medium can more fully exchange heat with the equipment in the box 10.
  • the cross section of the first flow channel 1232 is set to be square to reduce the manufacturing difficulty and cost and improve the manufacturing efficiency.
  • the cross section of the second section 12312 is adapted to the cross section of the first flow channel 1232.
  • the medium flow channel includes two second flow channels 1231 , and the first flow channel 1232 connects the two second flow channels 1231 .
  • One second flow channel 1231 has a medium inlet 1234 formed on the panel 122
  • the other second flow channel 1231 has a medium outlet 1235 formed on the panel 122 .
  • a first flow channel 1232 is provided on the end plate 121, and two independent second flow channels 1231 are provided on the panel 122.
  • the first flow channel 1232 connects the two second flow channels 1231.
  • a heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through a second flow channel 1231 on the panel 122, and the heat exchange medium in the first flow channel 1232 can flow out through the other second flow channel 1231.
  • the pipeline connecting the end plate 121 and the panel 122 can be further reduced or eliminated, thereby reducing the occupation of the internal space of the box body 10 by the pipeline, which is beneficial to improving the energy density of the battery 100.
  • Figure 6 is a schematic diagram of the structure of the second box 12 provided in some other embodiments of the present application.
  • Figure 7 is a cross-sectional view of the second box 12 provided in some other embodiments of the present application.
  • only one second flow channel 1231 is provided on the panel 122, and the second flow channel 1231 is formed with a medium inlet 1234 on the panel 122.
  • Figure 8 is a schematic diagram of the structure of the second box 12 provided in some other embodiments of the present application.
  • Figure 9 is a cross-sectional view of the second box 12 provided in some other embodiments of the present application.
  • only one second flow channel 1231 is provided on the panel 122, and the second flow channel 1231 forms a medium outlet 1235 on the panel 122.
  • the panel 122 is connected to one end of the end plate 121.
  • the panel 122 includes a plate body 1221 and a connecting portion 1222, the connecting portion 1222 protrudes from the plate body 1221 along the first direction, and the connecting portion 1222 connects the end plate 121 and the plate body 1221.
  • the medium flow channel is formed in the connecting portion 1222.
  • the plate body 1221 is a plate-like structure and is used to enclose together with other walls of the box body 10 to form a receiving space.
  • the connecting portion 1222 is a portion of the panel 122 used to connect with the end plate 121. Along the first direction, the connecting portion 1222 protrudes from the plate body 1221. Optionally, the plate body 1221 and the connecting portion 1222 are connected to form an L-shaped structure.
  • a portion of the medium flow channel is formed on the end plate 121, and a portion of the medium flow channel is formed on the connecting portion 1222.
  • the medium flow channel may be partially located in the plate body 1221, or may not be located in the plate body 1221.
  • connection part 1222 By making the connection part 1222 protrude from the plate body 1221 along the first direction, the panel 122 is conveniently connected to the end plate 121 through the connection part 1222, for example, it is convenient to weld the connection part 1222 to the end plate 121.
  • the plate body 1221 is a wall surrounding the accommodation space of the box body 10, and the medium flow channel is partially formed in the connection part 1222. After the connection part 1222 is connected to the end plate 121, the medium flow channel is located outside the accommodation space, and the heat exchange medium in the medium flow channel is not easy to cause damage to the equipment in the accommodation space.
  • Figure 10 is a top view of the second box 12 provided in some embodiments of the present application.
  • Figure 11 is a cross-sectional view of the A-A position in Figure 10.
  • the connecting portion 1222 is provided with a mounting structure 124, and the mounting structure 124 is used to install the internal equipment. The internal equipment is accommodated in the box 10.
  • the mounting structure 124 is a structure for mounting and fixing the internal device to the box body 10.
  • the internal device may be a battery cell, a battery module, or the like.
  • the mounting structure 124 may be a through hole, a blind hole, a threaded hole, a hook, a slide rail, a guide rail, a lock, or other structures.
  • the mounting structure 124 may be a structure directly formed on the connecting portion 1222, and may be integrally formed with the connecting portion 1222.
  • the mounting structure 124 is a threaded hole formed by machining on the connecting portion 1222, or the mounting structure 124 is a track extruded integrally with the connecting portion 1222.
  • the mounting structure 124 may also be formed on other parts connected to the connecting portion 1222, for example, the mounting structure 124 is a threaded hole on a sleeve, a nut, or other parts, or the mounting structure 124 is a track on a guide rail.
  • connection part 1222 By providing the mounting structure 124 on the connection part 1222, that is, integrating the mounting structure 124 into the panel 122, it is convenient to mount and fix the internal equipment on the connection part 1222. In this way, the number of equipment mounting beams can be reduced, making the parts of the box 10 more simplified. In addition, the number of equipment mounting beams is reduced, and the positions that need to be welded are also reduced accordingly, which is conducive to simplifying production and improving production efficiency.
  • the mounting structure 124 includes a mounting hole.
  • the mounting hole can be directly provided in the connection part 1222. Along the thickness direction of the connection part 1222, the mounting hole is recessed from the surface of the connection part 1222 facing the inner side of the box body 10 to the surface away from the inner side of the box body 10.
  • the mounting hole can be a round hole, a square hole, a hexagonal hole, etc.
  • the number of the mounting holes may be one or more, and more means two or more. In the embodiment where there are multiple mounting holes, the multiple mounting holes are arranged at intervals.
  • the mounting structure 124 is a mounting hole disposed on the connecting portion 1222 , which is helpful to simplify the structure of the box body 10 and reduce the weight of the box body 10 .
  • the mounting hole is provided with internal threads.
  • the mounting hole is provided with an internal thread, and the internal device can cooperate with the mounting hole thread, thereby realizing the connection between the box body and the internal device.
  • the connection method is simple and convenient, and the stability is good.
  • the wall surface of the mounting hole is a smooth plane or a curved surface.
  • the mounting hole is a blind hole.
  • the mounting hole is a blind hole, which means that the mounting hole will not penetrate the connecting portion 1222, thereby reducing the impact of the setting of the mounting hole on the structural strength of the connecting portion 1222. It is also unnecessary to perform sealing treatment at the mounting hole, thereby reducing the manufacturing difficulty of the box body 10.
  • the mounting hole may also be a through hole.
  • connection portion 1222 is provided with a plurality of mounting structures 124 , and the plurality of mounting structures 124 are arranged at intervals.
  • the plurality of mounting structures 124 may be arranged at intervals along a direction perpendicular to the first direction or in a matrix arrangement.
  • connection part 1222 is provided with a plurality of installation structures 124 arranged at intervals, and a plurality of installation positions can be formed between the connection part 1222 and the internal equipment, which can not only make the connection between the box body 10 and the internal equipment more stable, but also reduce the load borne by each installation position.
  • FIG. 12 is a bottom view of the second box body 12 provided in some embodiments of the present application.
  • Fig. 13 is a cross-sectional view of the BB position in Fig. 12.
  • the connecting portion 1222 is provided with a mounting structure 125, and the mounting structure 125 is used to connect the box body 10 with an external device.
  • the external device is located outside the box body 10.
  • the mounting structure 125 is a structure for mounting and fixing the box body 10 to an external device.
  • the external device may be an electrical device, a transportation device, a storage device, and the like.
  • the mounting structure 125 may be a through hole, a blind hole, a threaded hole, a hook, a slide rail, a guide rail, a lock, or the like.
  • the mounting structure 125 may be a structure directly formed on the connection portion 1222, and may be integrally formed with the connection portion 1222.
  • the mounting structure 125 is a threaded hole formed by machining on the connection portion 1222, or the mounting structure 125 is a track extruded integrally with the connection portion 1222.
  • the mounting structure 125 may also be formed on other parts connected to the connection portion 1222, for example, the mounting structure 125 is a threaded hole on a sleeve, a nut, or the like, or the mounting structure 125 is a track on a guide rail.
  • connection part 1222 By arranging the mounting structure 125 on the connection part 1222, that is, integrating the mounting structure 124 and the mounting structure 125 into the panel 122, it is convenient to mount and fix the external device on the connection part 1222. In this way, the number of mounting beams can be reduced, so that the parts of the box body 10 are further simplified. In addition, the number of mounting beams is reduced, and the positions that need to be welded are also reduced accordingly, which is conducive to simplifying production and improving production efficiency.
  • the mounting structure 125 includes a mounting hole.
  • the mounting hole can be directly provided in the connection part 1222. Along the thickness direction of the connection part 1222, the mounting hole is recessed from the surface of the connection part 1222 away from the inner side of the box body 10 to the surface facing the inner side of the box body 10.
  • the mounting hole can be a round hole, a square hole, a hexagonal hole, etc.
  • the number of the mounting holes may be one or more, and more means two or more. In the embodiment where there are multiple mounting holes, the multiple mounting holes are arranged at intervals.
  • the mounting structure 125 is a mounting hole disposed on the connecting portion 1222 , which is helpful to simplify the structure of the box body 10 and reduce the weight of the box body 10 .
  • the mounting hole is provided with an internal thread.
  • the mounting hole is provided with an internal thread, so the external device can cooperate with the mounting hole thread, thereby realizing the connection between the box body and the external device.
  • the connection method is simple and convenient, and the stability is good.
  • the wall surface of the mounting hole is a smooth plane or a curved surface.
  • the mounting hole is a blind hole.
  • the mounting hole is a blind hole, which means that the mounting hole will not penetrate the connecting portion 1222, thereby reducing the impact of the mounting hole setting on the structural strength of the connecting portion 1222. It is also unnecessary to perform sealing treatment at the mounting hole, thereby reducing the manufacturing difficulty of the box body 10.
  • Figure 14 is a bottom view of the second box body 12 provided in some other embodiments of the present application.
  • Figure 15 is a cross-sectional view of the C-C position in Figure 14.
  • Figure 16 is an enlarged view of the D position in Figure 15.
  • the box body 10 includes a mounting member 126 disposed on the connecting portion 1222, and the mounting structure 125 is disposed on the mounting member 126.
  • the mounting part 126 and the connecting part 1222 may be fixedly connected, such as by bonding, welding, etc.
  • the mounting part 126 and the connecting part 1222 may also be detachably connected, such as by bolts, screws, etc.
  • the external device is connected to the connecting part 1222 through the mounting part 126.
  • the mounting structure 125 is indirectly arranged on the connecting part 1222 through the mounting part 126.
  • the mounting part 126 may be a structural part such as a mounting beam, an angle part, a reinforcing plate, etc.
  • the mounting part 126 may also be a standard industrial part such as a sleeve, a nut, and a slide rail.
  • the mounting structure 125 such as a through hole, a threaded hole, and a slot may be formed on the mounting part 126 by processing.
  • the mounting part 126 may also be a connection structure provided on a standard industrial part. For example, when the mounting part 126 is a nut, the mounting structure 125 is a threaded hole on the nut.
  • the connecting portion 1222 may include one mounting member 126 or may include a plurality of mounting members 126. In the embodiment where the connecting portion 1222 includes a plurality of mounting members 126, the plurality of mounting members 126 are arranged on the connecting portion 1222 at intervals.
  • One mounting structure 125 or multiple mounting structures 125 may be provided on one mounting member 126 .
  • the mounting structure 125 is arranged on the mounting part 126 , and the housing 10 and the external device can be connected through the mounting part 126 , making the connection between the housing 10 and the external device more convenient.
  • the mounting component 126 and the connecting portion 1222 are welded.
  • the mounting part 126 and the connecting part 1222 can be welded together by laser welding, ultrasonic welding, resistance welding, gas welding, etc.
  • the mounting member 126 is welded to the connecting portion 1222, which is not only convenient for connection, but also can make the connection strength between the mounting member 126 and the connecting portion 1222 better and have a greater load-bearing capacity.
  • the mounting member 126 is a sleeve having an internal thread.
  • the mounting member 126 is a sleeve and is provided with an internal thread in the sleeve.
  • the mounting member 126 cooperates with the thread of the external device to achieve mounting the box body 10 on the external device.
  • the mounting method is simple, convenient and has good stability.
  • connection portion 1222 is provided with a plurality of mounting structures 125 , and the plurality of mounting structures 125 are arranged at intervals.
  • the plurality of mounting structures 125 may be arranged at intervals along a direction perpendicular to the first direction or in a matrix arrangement.
  • the housing 10 includes a plurality of mounting structures 125 arranged at intervals, and a plurality of mounting positions can be formed between the housing 10 and the external device, which can not only make the connection between the housing 10 and the external device more stable, but also reduce the load borne by each mounting position.
  • the plate body 1221 and the connecting portion 1222 are integrally formed.
  • the plate body 1221 and the connecting portion 1222 are integrally formed, which means that the plate body 1221 and the connecting portion 1222 are an integral structure during manufacture.
  • the plate body 1221 and the connecting portion 1222 can be integrally formed by die casting, or integrally formed by casting.
  • the integrity is improved and the strength of the panel 122 is higher.
  • the box body 10 includes a side plate 127, and the side plate 127 is disposed opposite to the panel 122.
  • the side plate 127 is connected to the other end of the end plate 121.
  • the panel 122 and the side panels 127 are respectively connected to the two ends of the end panel 121. Along the first direction, the panel 122 and the side panels 127 are arranged opposite to each other. The panel 122, the end panel 121 and the side panels 127 are connected to form a U-shaped structure.
  • a panel 122 and a side panel 127 opposite to the panel 122 are arranged on the end wall.
  • the structural strength of the box body 10 can be improved.
  • the accommodating space for internal equipment can be limited so that the internal equipment can be stably assembled in the box body 10.
  • the panel 122 and the side panel 127 protrude from the surface of the end plate 121.
  • the glue overflow space can be effectively controlled to reduce the risk of waste and environmental pollution caused by glue overflow.
  • the box 10 includes a first box 11 and a second box 12, which are separately arranged and connected.
  • the second box 12 includes an end plate 121, a panel 122 and a side plate 127, and the first box 11, the end plate 121, the panel 122 and the side plate 127 together define a storage space.
  • the first box body 11 and the second box body 12 are separately provided and connected” means that during manufacturing, the first box body 11 and the second box body 12 are provided separately, and the first box body 11 and the second box body 12 are subsequently connected together.
  • the first box body 11 can be bolted to the second box body 12.
  • the end plate 121, the panel 122 and the side plate 127 are all part of the second box body 12.
  • the second box body 12 may also include other walls.
  • the second box body 12 is connected to the first box body 11 to form a storage space of the box body 10 together.
  • first box body 11 and the second box body 12 By providing the first box body 11 and the second box body 12 , it is convenient to manufacture and assemble them separately to form the box body 10 .
  • the end plate 121 , the panel 122 and the side plate 127 are all located in the second box body 12 .
  • a seal 13 is provided between the first box body 11 and the second box body 12 , and the seal 13 is used to seal the first box body 11 and the second box body 12 to reduce the risk of external water vapor entering into the box body 10 .
  • the present application also provides a battery 100, which includes a battery cell and the above-mentioned box 10.
  • the unit cell is accommodated in the housing 10 .
  • the embodiment of the present application further provides an electric device, which includes the above-mentioned battery 100, and the battery 100 is used to provide electric energy to the electric device.
  • FIGS. 2 to 16 please refer to FIGS. 2 to 16 .
  • the embodiment of the present application provides a box 10, which includes an end plate 121, a panel 122 and a medium flow channel, wherein the panel 122 is connected to one end of the end plate 121.
  • the medium flow channel is used to accommodate a heat exchange medium, and the medium flow channel is at least partially located on the end plate 121.
  • the medium flow channel has a medium inlet 1234 and a medium outlet 1235, and the medium inlet 1234 and/or the medium outlet 1235 are arranged on the panel 122.
  • the housing 10 is provided with a medium flow channel, and the medium flow channel is used to pass a heat exchange medium to perform thermal management on the equipment in the housing 10.
  • the medium flow channel is at least partially located at the end plate 121, and the medium inlet 1234 and/or the medium outlet 1235 of the medium flow channel are provided on the panel 122.
  • the heat exchange medium can directly enter and/or flow out of the medium flow channel through the medium inlet 1234 and/or the medium outlet 1235 on the panel 122, which can reduce or eliminate the use of pipelines to connect the end plate 121 and the panel 122, thereby reducing the occupation of the internal space of the housing 10 by the pipeline, which is beneficial to improving the energy density of the battery 100.
  • the medium flow channel includes a first flow channel 1232 and a second flow channel 1231.
  • the first flow channel 1232 is arranged on the end plate 121, and the second flow channel 1231 is arranged on the panel 122.
  • the second flow channel 1231 is in communication with the first flow channel 1232, and the second flow channel 1231 is formed with a medium inlet 1234 or a medium outlet 1235 on the panel 122.
  • the first flow channel 1232 is arranged on the end plate 121, and the second flow channel 1231 is arranged on the panel 122.
  • the first flow channel 1232 and the second flow channel 1231 are in communication, so that the heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through the second flow channel 1231 on the panel 122, or the heat exchange medium in the first flow channel 1232 can be discharged through the second flow channel 1231, which can reduce or eliminate the use of pipelines to connect the end plate 121 and the panel 122, thereby reducing the occupation of the internal space of the box 10 by the pipeline, which is beneficial to improving the energy density of the battery 100.
  • the medium flow channel includes two second flow channels 1231, and the first flow channel 1232 connects the two second flow channels 1231.
  • One second flow channel 1231 is formed with a medium inlet 1234 on the panel 122, and the other second flow channel 1231 is formed with a medium outlet 1235 on the panel 122.
  • the first flow channel 1232 is provided on the end plate 121, and two independent second flow channels 1231 are provided on the panel 122.
  • the first flow channel 1232 connects the two second flow channels 1231, so that the heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through one second flow channel 1231 on the panel 122, and the heat exchange medium in the first flow channel 1232 flows out through the other second flow channel 1231, which can further reduce or eliminate the use of pipelines to connect the end plate 121 and the panel 122, thereby reducing the occupation of the internal space of the box body 10 by the pipeline, which is beneficial to improving the energy density of the battery 100.
  • the panel 122 is connected to one end of the end plate 121 along the first direction.
  • the panel 122 includes a plate body 1221 and a connecting portion 1222, and the connecting portion 1222 protrudes from the plate body 1221 along the first direction.
  • the connecting portion 1222 connects the end plate 121 and the plate body 1221, and the medium flow channel is partially formed in the connecting portion 1222.
  • the plate body 1221 is a wall that encloses the storage space of the box body 10, and the medium flow channel is partially formed in the connecting portion 1222. After the connecting portion 1222 is connected to the end plate 121, the medium flow channel is located outside the storage space, and the heat exchange medium in the medium flow channel is not easy to cause damage to the equipment in the storage space.
  • connection part 1222 is provided with a mounting structure 124, and the mounting structure 124 is used to install the internal equipment, and the internal equipment is accommodated in the box body 10.
  • the mounting structure 124 on the connection part 1222, that is, integrating the mounting structure 124 with the panel 122, it is convenient to install and fix the internal equipment on the connection part 1222. In this way, the number of equipment mounting beams can be reduced, so that the parts of the box body 10 are further simplified. In addition, the number of equipment mounting beams is reduced, and the positions that need to be welded are also reduced accordingly, which is conducive to simplifying production and improving production efficiency.
  • connection part 1222 is provided with a mounting structure 125, and the mounting structure 125 is used to connect the box body 10 with an external device, and the external device is located outside the box body 10.
  • the mounting structure 125 on the connection part 1222 that is, the mounting structure 124 and the mounting structure 125 are integrated into the panel 122, it is convenient to install and fix the external device on the connection part 1222.
  • the number of mounting beams can be reduced, so that the parts of the box body 10 are further simplified.
  • the number of mounting beams is reduced, and the positions that need to be welded are also reduced accordingly, which is conducive to simplifying production and improving production efficiency.
  • the plate body 1221 and the connecting portion 1222 are integrally formed. By integrally forming the plate body 1221 and the connecting portion 1222, the integrity is good and the strength of the panel 122 is high.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请提供了一种箱体、电池及用电设备，涉及电池领域。箱体包括端板、面板和介质流道，面板连接于端板的一端。介质流道用于容纳换热介质。介质流道至少部分位于端板。介质流道具有介质入口和介质出口，介质入口和/或介质出口设置于面板。该箱体设置有介质流道，介质流道用于通入换热介质，以对箱体内的设备进行热管理。介质流道至少部分位于端板，介质流道的介质入口和/或介质出口设置于面板，通过面板上的介质入口和/或介质出口可直接使换热介质进入和/或流出介质流道，可减少或不使用管路连接端板和面板，从而降低管路对箱体的内部空间的占用，有利于提升电池的能量密度。

Description

箱体、电池及用电设备
相关申请的交叉引用
本申请要求享有2023年06月12日提交的名称为“箱体、电池及用电设备”的中国专利申请(申请号：2023214785971)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
本申请涉及电池领域，具体而言，涉及一种箱体、电池及用电设备。
背景技术
电池在新能源领域应用甚广，例如电动汽车、新能源汽车等，新能源汽车、电动汽车已经成为汽车产业的发展新趋势。电池技术的发展要同时考虑多方面的设计因素，例如，电池寿命、放电容量、充放电倍率等性能参数。另外，还需要考虑电池的能量密度。然而，目前的电池的能量密度较低。
发明内容
本申请实施例的目的在于提供一种箱体、电池及用电设备，其旨在改善相关技术中电池的能量密度较低的问题。
第一方面，本申请实施例提供了一种箱体，所述箱体包括端板、面板和介质流道，所述面板连接于所述端板的一端；所述介质流道用于容纳换热介质，所述介质流道至少部分位于所述端板，所述介质流道具有介质入口和介质出口，所述介质入口和/或所述介质出口设置于所述面板。
在上述技术方案中，该箱体设置有介质流道，介质流道用于通入换热介质，以对箱体内的设备进行热管理。介质流道至少部分位于端板，介质流道的介质入口和/或介质出口设置于面板，通过面板上的介质入口和/或介质出口可直接使换热介质进入和/或流出介质流道，可减少或不使用管路连接端板和面板，从而降低管路对箱体的内部空间的占用，有利于提升电池的能量密度。
作为本申请实施例的一种可选技术方案，所述介质流道包括第一流道和第二流道，所述第一流道设置于所述端板，所述第二流道设置于所述面板，所述第二流道与所述第一流道连通，所述第二流道在所述面板上形成有所述介质入口或所述介质出口。
在上述技术方案中，端板上设置有第一流道，面板上设置有第二流道，第一流道和第二流道连通，这样，可以通过面板上的第二流道向端板上的第一流道供给换热介质，或者可以通过第二流道使第一流道内的换热介质流出，可减少或不使用管路连接端板和面板，从而降低管路对箱体的内部空间的占用，有利于提升电池的能量密度。
作为本申请实施例的一种可选技术方案，所述端板包括第一表面，所述第一流道在所述第一表面形成第一开口，所述面板包括第二表面，所述第二流道在所述第二表面形成第二开口，所述第一表面和所述第二表面贴合，所述第一开口与所述第二开口至少部分相对，以使所述第一流道与所述第二流道连通。
在上述技术方案中，第一表面与第二表面贴合，使得第一流道的第一开口与第二流道的第二开口至少部分相对，从而将第一流道和第二流道直接连通。这样，第一流道和第二流道之间无需使用管路相连，降低管路对箱体的内部空间的占用，有利于提升电池的能量密度。
作为本申请实施例的一种可选技术方案，所述第二流道在所述面板背离所述端板的表面形成所述介质入口或所述介质出口。
在上述技术方案中，面板背离端板的表面面积较大，设置介质入口或介质出口较为方便。并且，介质入口在与介质供给管路相连时具有较大的避让空间，或介质出口在与介质流出管路 相连时具有较大的避让空间，使得介质供给管路或介质流出管路不易与其他部件发生干涉，有利于简化安装，提升生产效率。
作为本申请实施例的一种可选技术方案，沿第一方向，所述面板连接于所述端板的一端，所述第二流道沿所述第一方向贯穿所述面板相对设置的两个表面。
在上述技术方案中，通过使第二流道沿第一方向贯穿面板的相对设置的两个表面，一方面，便于加工制造。另一方面，第二流道的长度较短，换热介质能够更快地进入到第一流道内与箱体内部的设备进行热交换，对箱体内的设备进行热管理的灵敏性更高，或者换热介质能够更快地离开介质流道。
作为本申请实施例的一种可选技术方案，所述第二流道包括第一段和第二段，所述第一段与所述第二段连通，所述第一段的背离所述第二段的一端形成所述介质入口或所述介质出口，所述第二段与所述第一流道连通，所述第一段的横截面为圆形，所述第二段和所述第一流道的横截面均为方形。
在上述技术方案中，第一段在面板上形成介质入口或介质出口，第一段用于与介质供给管路或介质流出管道连通，因此，将第一段的横截面设置为圆形，以便于与介质供给管路或介质流出管道相连。第二段用于与第一流道连通，将第二段和第一流道的横截面设置为方形，有利于降低换热介质的流速，使得换热介质能够更充分的与箱体内的设备进行热交换。另外，在制造时，第一流道的横截设置为方形，以降低制造难度和成本，提升制造效率。第二段的横截面与第一流道的横截面相适应。
作为本申请实施例的一种可选技术方案，所述介质流道包括两个所述第二流道，所述第一流道连通两个所述第二流道，一个所述第二流道在所述面板上形成有所述介质入口，另一个所述第二流道在所述面板上形成有所述介质出口。
在上述技术方案中，端板上设置有第一流道，面板上设置有两个独立的第二流道，第一流道连通两个第二流道，这样，可以通过面板上的一个第二流道向端板上的第一流道供给换热介质，通过另一个第二流道使第一流道内的换热介质流出，可进一步减少或不使用管路连接端板和面板，从而降低管路对箱体的内部空间的占用，有利于提升电池的能量密度。
作为本申请实施例的一种可选技术方案，沿第一方向，所述面板连接于所述端板的一端，所述面板包括板体和连接部，所述连接部沿所述第一方向凸出于所述板体，所述连接部连接所述端板和所述板体，所述介质流道部分形成于所述连接部。
在上述技术方案中，通过使连接部沿第一方向凸出于板体，以便于通过连接部将面板连接于端板，例如，便于将连接部与端板焊接。板体是围成箱体的容纳空间的一个壁，介质流道部分形成于连接部，在连接部与端板连接后，介质流道位于容纳空间的外侧，介质流道内的换热介质不易对容纳空间内的设备造成损害。
作为本申请实施例的一种可选技术方案，所述连接部设置有安装结构，所述安装结构用于安装内部设备，所述内部设备容纳于所述箱体内。
在上述技术方案中，通过在连接部上设置安装结构，也即将安装结构集成于面板，便于将内部设备安装固定于连接部上。这样，可以减少设备安装梁的个数，使得箱体零部件更加简化。另外，设备安装梁的个数减少，需要焊接的位置也相应减少，有利于简化生产，提高生产效率。
作为本申请实施例的一种可选技术方案，所述安装结构包括安装孔，所述安装孔设置有内螺纹。
在上述技术方案中，安装结构为设置于连接部上的安装孔，有利于简化箱体的结构和减轻箱体的重量。安装孔设置有内螺纹，则内部设备可以与安装孔螺纹配合，从而实现箱本体与内部设备连接，连接方式简单方便，稳定性较好。
作为本申请实施例的一种可选技术方案，所述安装孔为盲孔。
在上述技术方案中，安装孔为盲孔，意味着安装孔不会贯穿连接部，降低安装孔的设置对连接部的结构强度的影响，还可以不需要在安装孔处进行密封处理，降低箱体的制造难度。
作为本申请实施例的一种可选技术方案，所述连接部设置有多个所述安装结构，多个所述安装结构间隔设置。
在上述技术方案中，连接部设置有多个间隔设置的安装结构，连接部和内部设备之间可以形成有多个安装位置，不仅能够使得箱体和内部设备之间的连接更加稳定，还能减小每个安装位置承受的载荷。
作为本申请实施例的一种可选技术方案，所述连接部设置有挂载结构，所述挂载结构用于将所述箱体与外部设备连接，所述外部设备位于所述箱体外。
在上述技术方案中，通过在连接部上设置挂载结构，也即将安装结构和挂载结构均集成于面板，便于将外部设备安装固定于连接部上。这样，可以减少挂载安装梁的个数，使得箱体零部件更加简化。另外，挂载安装梁的个数减少，需要焊接的位置也相应减少，有利于简化生产，提高生产效率。
作为本申请实施例的一种可选技术方案，所述挂载结构包括挂载孔，所述挂载孔设置有内螺纹。
在上述技术方案中，挂载结构为设置于连接部上的挂载孔，有利于简化箱体的结构和减轻箱体的重量。挂载孔设置有内螺纹，则外部设备可以与挂载孔螺纹配合，从而实现箱本体与外部设备连接，连接方式简单方便，稳定性较好。
作为本申请实施例的一种可选技术方案，所述挂载孔为盲孔。
在上述技术方案中，挂载孔为盲孔，意味着挂载孔不会贯穿连接部，降低挂载孔的设置对连接部的结构强度的影响，还可以不需要在挂载孔处进行密封处理，降低箱体的制造难度。
作为本申请实施例的一种可选技术方案，所述箱体包括设置于连接部的挂载件，所述挂载结构设置于所述挂载件上。
在上述技术方案中，挂载结构设置于挂载件，可以通过挂载件实现箱体和外部设备连接，使得箱体和外部设备连接更加方便。
作为本申请实施例的一种可选技术方案，所述挂载件与所述连接部焊接。
在上述技术方案中，挂载件与连接部焊接，不仅连接方式方便，还能使得挂载件和连接部之间的连接强度较好，具有较大的承载能力。
作为本申请实施例的一种可选技术方案，所述挂载件为套筒，所述套筒具有内螺纹。
在上述技术方案中，挂载件为套筒并在套筒内设有内螺纹，挂载件与外部设备螺纹配合以实现将箱体挂载于外部设备，挂载方式简单、方便且稳定性好。
作为本申请实施例的一种可选技术方案，所述连接部设置有多个所述挂载结构，多个所述挂载结构间隔设置。
在上述技术方案中，箱体包括多个间隔设置的挂载结构，箱体和外部设备之间可以形成有多个挂载位置，不仅能够使得箱体和外部设备之间的连接更加稳定，还能减小每个挂载位置承受的载荷。
作为本申请实施例的一种可选技术方案，所述板体和所述连接部一体成型。
在上述技术方案中，通过将板体和连接部一体成型，整体性较好，面板的强度较高。
作为本申请实施例的一种可选技术方案，所述箱体包括侧板，所述侧板与所述面板相对设置，所述侧板连接于所述端板的另一端。
在上述技术方案中，在端壁上设置面板和与面板相对的侧板，一方面，能够提高箱体 的结构强度，另一方面，能够限定出内部设备的容纳空间，使得内部设备稳定地装配于箱体内，再一方面，面板和侧板凸出于端板的表面，当内部设备通过胶水粘接于端板时，能够有效地控制溢胶空间，降低因胶水溢出造成浪费和污染环境的风险。
作为本申请实施例的一种可选技术方案，所述箱体包括第一箱体和第二箱体，所述第一箱体和所述第二箱体分体设置并连接；其中，所述第二箱体包括所述端板、所述面板和所述侧板，所述第一箱体、所述端板、所述面板和所述侧板共同限定出容纳空间。
在上述技术方案中，通过设置第一箱体和第二箱体，便于分别制造并拼合形成箱体。端板、面板和侧板均位于第二箱体。
第二方面，本申请实施例还提供了一种电池，所述电池包括电池单体和上述的箱体，所述电池单体容纳于所述箱体内。
第三方面，本申请实施例还提供了一种用电设备，所述用电设备包括上述的电池，所述电池用于为所述用电设备提供电能。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本申请一些实施例提供的车辆的结构示意图；
图2为本申请一些实施例提供的箱体的结构示意图；
图3为本申请一些实施例提供的箱体的爆炸图；
图4为本申请一些实施例提供的第二箱体的结构示意图；
图5为本申请一些实施例提供的第二箱体的剖视图；
图6为本申请另一些实施例提供的第二箱体的结构示意图；
图7为本申请另一些实施例提供的第二箱体的剖视图；
图8为本申请又一些实施例提供的第二箱体的结构示意图；
图9为本申请又一些实施例提供的第二箱体的剖视图；
图10为本申请一些实施例提供的第二箱体的俯视示意图；
图11为图10中A-A位置的剖视图；
图12为本申请一些实施例提供的第二箱体的仰视示意图；
图13为图12中B-B位置的剖视图；
图14为本申请另一些实施例提供的第二箱体的仰视示意图；
图15为图14中C-C位置的剖视图；
图16为图15中D位置的放大图。
图标：10-箱体；11-第一箱体；12-第二箱体；121-端板；1211-第一表面；122-面板；1221-板体；1222-连接部；12221-第二表面；1231-第二流道；12311-第一段；12312-第二段；1232-第一流道；1234-介质入口；1235-介质出口；124-安装结构；125-挂载结构；126-挂载件；127-侧板；13-密封件；100-电池；200-控制器；300-马达；1000-车辆。
具体实施方式
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。
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。
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。
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。
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。
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。
本申请中出现的“多个”指的是两个以上(包括两个)。
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。箱体可以一定程度上避免液体或其他异物影响电池单体的充电或放电。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。
目前，从市场形势的发展来看，电池的应用越加广泛。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。
电池技术的发展要同时考虑多方面的设计因素，例如，电池寿命、放电容量、充放电倍率等性能参数。另外，还需要考虑电池的能量密度。然而，目前的电池的能量密度较低。
电池单体在工作时会产生大量的热量，从而导致电池单体的温度升高。电池单体的温度升高到一定程度就会影响电池单体的性能。若电池单体的温度继续升高，则容易发生热失控，造成电池单体起火，甚至爆炸。相关技术中采用水冷板对电池单体进行散热，然而，将水冷板设置于箱体内，会占用箱体的内部空间，降低电池的能量密度。
为了提升电池的能量密度，相关技术中将水冷流道设置于底板内，通过在底板的上表面开设两个第一通孔，分别形成水冷入口和水冷出口。为了将水引入和引出水冷流道，设置有分别连接水冷入口和水冷出口的两根管路，并在连接于底板的一端的面板上开设供管路穿出箱体的第二通孔。这样，虽然能够在一定程度上提升电池的能量密度，然而，管路还是会占用一部分箱体的内部空间，导致电池的能量密度较低。
鉴于此，本申请实施例提供一种箱体，箱体包括端板、面板和介质流道，面板连接于 端板的一端。介质流道用于容纳换热介质。介质流道至少部分位于端板。介质流道具有介质入口和介质出口，介质入口和/或介质出口设置于面板。
该箱体设置有介质流道，介质流道用于通入换热介质，以对箱体内的设备进行热管理。介质流道至少部分位于端板，介质流道的介质入口和/或介质出口设置于面板，通过面板上的介质入口和/或介质出口可直接使换热介质进入和/或流出介质流道，可减少或不使用管路连接端板和面板，从而降低管路对箱体的内部空间的占用，有利于提升电池的能量密度。
本申请实施例描述的技术方案适用于电池以及使用电池的用电设备。
用电设备可以是车辆、手机、便携式设备、笔记本电脑、轮船、航天器、电动玩具和电动工具等等。航天器包括飞机、火箭、航天飞机和宇宙飞船等等；电动玩具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；电动工具包括金属切削电动工具、研磨电动工具、装配电动工具和铁道用电动工具，例如，电钻、电动砂轮机、电动扳手、电动螺丝刀、电锤、冲击电钻、混凝土振动器和电刨等等。本申请实施例对上述用电设备不做特殊限制。
以下实施例为了方便说明，以用电设备为车辆为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源。车辆1000还可以包括控制器200和马达300，控制器200用来控制电池100为马达300供电，例如，用于车辆1000的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
请参照图2和图3，图2为本申请一些实施例提供的箱体10的结构示意图。图3为本申请一些实施例提供的箱体10的爆炸图。电池100包括箱体10和电池单体，电池单体容纳于箱体10内。其中，箱体10用于为电池单体提供容纳空间，箱体10可以采用多种结构。在一些实施例中，箱体10可以包括第一箱体11和第二箱体12，第一箱体11与第二箱体12相互盖合，第一箱体11和第二箱体12共同限定出用于容纳电池单体的容纳空间。第二箱体12可以为一端开口的空心结构，第一箱体11可以为板状结构，第一箱体11盖合于第二箱体12的开口侧，以使第一箱体11与第二箱体12共同限定出容纳空间；第一箱体11和第二箱体12也可以是均为一侧开口的空心结构，第一箱体11的开口侧盖合于第二箱体12的开口侧。请参照图2和图3，在图中所示的实施例中，第一箱体11和第二箱体12均为U形结构。第一箱体11的开口端盖合于第二箱体12的开口端。当然，第一箱体11和第二箱体12形成的箱体10可以是多种形状，比如，圆柱体、长方体等。
在电池100中，电池单体可以是多个，多个电池单体之间可串联或并联或混联，混联是指多个电池单体中既有串联又有并联。多个电池单体之间可直接串联或并联或混联在一起，再将多个电池单体构成的整体容纳于箱体10内；当然，电池100也可以是多个电池单体先串联或并联或混联组成电池模块形式，多个电池模块再串联或并联或混联形成一个整体，并容纳于箱体10内。电池100还可以包括其他结构，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之间的电连接。
其中，每个电池单体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。电池单体可呈圆柱体、扁平体、长方体或其它形状等。
请参照图2、图3、图4和图5，图4为本申请一些实施例提供的第二箱体12的结构示意图。图5为本申请一些实施例提供的第二箱体12的剖视图。本申请实施例提供了一种箱体10，箱体10包括端板121、面板122和介质流道，面板122连接于端板121的一端。介质流道用于容纳换热介质，介质流道至少部分位于端板121。介质流道具有介质入口1234和介质出口 1235，介质入口1234和/或介质出口1235设置于面板122。
端板121可以是组成箱体10的任意一个壁。为了提升介质流道内换热介质与箱体10内的设备的换热效果，端板121可以为箱体10中面积最大的壁。可选地，端板121为箱体10的底板。这样，端板121可以与箱体10内的设备贴合，从而提升换热效果。
面板122是连接于端板121的一端的壁。当端板121为箱体10的底板时，面板122可以为设置高压输出、低压输出的壁。
介质流道是用于供换热介质流动的通道。通过换热介质与箱体10内的设备进行热交换，从而管理箱体10内的设备的温度。换热介质可以为液体介质，例如，水、油等。换热介质也可以为气体介质，例如，空气。
介质流道可以一部分设置于端板121，另一部分设置于面板122。介质流道也可以均位于端板121内，此时，可以通过管路与介质流道相连，从而向介质流道内供给换热介质或者使得介质流道内的换热介质流出。
介质入口1234是用于供换热介质流入介质流道的开口。介质出口1235是用于供换热介质流出介质流道的开口。一般来说，介质流道设置有一个介质入口1234和一个介质出口1235，介质入口1234和介质出口1235分别位于介质流道的两端。当然，也可以设置多个介质入口1234和/或多个介质出口1235。
在本申请中，面板122上可以只设置有介质入口1234，也可以只设置有介质出口1235，还可以既设置介质入口1234，也设置介质出口1235，并且介质入口1234和介质出口1235的个数不限。
该箱体10设置有介质流道，介质流道用于通入换热介质，以对箱体10内的设备进行热管理。介质流道至少部分位于端板121，介质流道的介质入口1234和/或介质出口1235设置于面板122，通过面板122上的介质入口1234和/或介质出口1235可直接使换热介质进入和/或流出介质流道，可减少或不使用管路连接端板121和面板122，从而降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
请参照图4和图5，在一些实施例中，介质流道包括第一流道1232和第二流道1231，第一流道1232设置于端板121，第二流道1231设置于面板122。第二流道1231与第一流道1232连通。第二流道1231在面板122上形成有介质入口1234或介质出口1235。
第一流道1232是介质流道设置于端板121的一部分。第二流道1231是介质流道设置于面板122的一部分。其中，第二流道1231的一端在面板122上形成介质入口1234或介质出口1235，第二流道1231的另一端与第一流道1232连通。
“第二流道1231与第一流道1232连通”可以是第二流道1231直接与第一流道1232连通，也可以是第二流道1231间接与第一流道1232连通，例如，第二流道1231通过管路间接与第一流道1232连通。
请参照图4和图5，在图4和图5所示的实施例中，第二流道1231直接与第一流道1232连通，第二流道1231与第一流道1232之间无需设置管路，从而降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
端板121上设置有第一流道1232，面板122上设置有第二流道1231，第一流道1232和第二流道1231连通，这样，可以通过面板122上的第二流道1231向端板121上的第一流道1232供给换热介质，或者可以通过第二流道1231使第一流道1232内的换热介质流出，可减少或不使用管路连接端板121和面板122，从而降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
请参照图4和图5，在一些实施例中，端板121包括第一表面1211，第一流道1232在第一表面1211形成第一开口。面板122包括第二表面12221，第二流道1231在第二表面12221形成第二开口。第一表面1211和第二表面12221贴合，第一开口与第二开口至少部分相对，以使第 一流道1232与第二流道1231连通。
第一表面1211是指端板121的朝向面板122的表面。第二表面12221是指面板122的朝向端板121的表面。
第一流道1232延伸至第一表面1211，在第一表面1211上形成第一开口。第二流道1231延伸至第二表面12221，在第二表面12221上形成第二开口。可选地，第二流道1231的一端在面板122上形成介质入口1234或介质出口1235，第二流道1231的另一端在第二表面12221形成第二开口。
面板122连接于端板121时，第一表面1211和第二表面12221贴合，第一开口与第二开口至少部分相对，使得第一流道1232与第二流道1231连通，换热介质能够从第二流道1231经第二开口、第一开口进入到第一流道1232，或者换热介质能够从第一流道1232经过第一开口、第二开口进入到第二流道1231。
需要说明的是，“第一开口与第二开口至少部分相对”包括第一开口与第二开口部分相对和第一开口与第二开口完全相对两种方案。当第一开口与第二开口完全相对时，第一开口与第二开口的投影可以完全重叠，也可以其中一者的投影落在另一者的投影范围内。
第一表面1211与第二表面12221贴合，使得第一流道1232的第一开口与第二流道1231的第二开口至少部分相对，从而将第一流道1232和第二流道1231直接连通。这样，第一流道1232和第二流道1231之间无需使用管路相连，降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
请参照图4和图5，在一些实施例中，第二流道1231在面板122背离端板121的表面形成介质入口1234或介质出口1235。
沿第一方向，面板122连接于端板121的一端。请参照图4和图5，第一方向可以是图中所示的x方向。
沿第一方向，面板122具有相对的第二表面12221和第三表面，其中，第二表面12221面向端板121设置，第三表面背离端板121设置，介质入口1234或介质出口1235形成于第三表面。
面板122背离端板121的表面面积较大，设置介质入口1234或介质出口1235较为方便。并且，介质入口1234在与介质供给管路相连时具有较大的避让空间，或介质出口1235在与介质流出管路相连时具有较大的避让空间，使得介质供给管路或介质流出管路不易与其他部件发生干涉，有利于简化安装，提升生产效率。
在另一些实施例中，请参照图4和图5，可以在面板122背离端板121的一侧设置沉槽，将介质入口1234或介质出口1235设置于沉槽的底壁。
请参照图4和图5，在一些实施例中，沿第一方向，面板122连接于端板121的一端，第二流道1231沿第一方向贯穿面板122相对设置的两个表面。
沿第一方向，面板122连接于端板121的一端。请参照图4和图5，第一方向可以是图中所示的x方向。
第二流道1231沿着第一方向延伸，且第二流道1231可以从面板122的背离端板121的表面延伸至面板122的面向端板121的表面，也即可以从第三表面延伸至第二表面12221。此时，第二流道1231为直线流道。
通过使第二流道1231沿第一方向贯穿面板122的相对设置的两个表面，一方面，便于加工制造。另一方面，第二流道1231的长度较短，换热介质能够更快地进入到第一流道1232内与箱体10内部的设备进行热交换，对箱体10内的设备进行热管理的灵敏性更高，或者换热介质能够更快地离开介质流道。
在另一些实施例中，第二流道1231可以为曲线流道或弯折流道。例如，第二流道 1231可以包括第一部分、第二部分和第三部分，其中，第一部分沿着第一方向延伸，第二部分沿着垂直于第一方向的方向延伸，第三部分再沿着第一方向延伸。第二部分连通第一部分和第二部分。第一部分在面板122上形成介质入口1234或介质出口1235，第三部分在面板122上形成第二开口。
请参照图4和图5，在一些实施例中，第二流道1231包括第一段12311和第二段12312，第一段12311与第二段12312连通。第一段12311的背离第二段12312的一端形成介质入口1234或介质出口1235，第二段12312与第一流道1232连通。第一段12311的横截面为圆形，第二段12312和第一流道1232的横截面均为方形。
第一段12311和第二段12312分别是第二流道1231的两个部分，其中第一段12311相比于第二段12312更加远离第一流道1232。第一段12311的一端在面板122上形成介质入口1234或介质出口1235，第一段12311的另一端可以与第二段12312连通。第二段12312连通第一段12311和第一流道1232。可选地，第二段12312的一端与第一段12311连通，第二段12312的另一端在面板122上形成第二开口。
“第一段12311的横截面”是指第一段12311沿垂直于其延伸方向的横截面。与之相应地，“第二段12312和第一流道1232的横截面”是指第二段12312沿垂直于其延伸方向的横截面和第一流道1232沿垂直于其延伸方向的横截面。
第一段12311在面板122上形成介质入口1234或介质出口1235，第一段12311用于与介质供给管路或介质流出管道连通，因此，将第一段12311的横截面设置为圆形，以便于与介质供给管路或介质流出管道相连。第二段12312用于与第一流道1232连通，将第二段12312和第一流道1232的横截面设置为方形，有利于降低换热介质的流速，使得换热介质能够更充分的与箱体10内的设备进行热交换。另外，在制造时，第一流道1232的横截设置为方形，以降低制造难度和成本，提升制造效率。第二段12312的横截面与第一流道1232的横截面相适应。
请参照图4和图5，在一些实施例中，介质流道包括两个第二流道1231，第一流道1232连通两个第二流道1231。一个第二流道1231在面板122上形成有介质入口1234，另一个第二流道1231在面板122上形成有介质出口1235。
端板121上设置有第一流道1232，面板122上设置有两个独立的第二流道1231，第一流道1232连通两个第二流道1231，这样，可以通过面板122上的一个第二流道1231向端板121上的第一流道1232供给换热介质，通过另一个第二流道1231使第一流道1232内的换热介质流出，可进一步减少或不使用管路连接端板121和面板122，从而降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
请参照图6和图7，图6为本申请另一些实施例提供的第二箱体12的结构示意图。图7为本申请另一些实施例提供的第二箱体12的剖视图。在另一些实施例中，面板122上仅设置有一个第二流道1231，并且第二流道1231在面板122上形成有介质入口1234。
请参照图8和图9，图8为本申请又一些实施例提供的第二箱体12的结构示意图。图9为本申请又一些实施例提供的第二箱体12的剖视图。在又一些实施例中，面板122上仅设置有一个第二流道1231，并且第二流道1231在面板122上形成有介质出口1235。
请参照图8和图9，在一些实施例中，沿第一方向，面板122连接于端板121的一端。面板122包括板体1221和连接部1222，连接部1222沿第一方向凸出于板体1221，连接部1222连接端板121和板体1221。介质流道部分形成于连接部1222。
板体1221为板状结构。板体1221用于与箱体10的其他壁共同围合形成容纳空间。
连接部1222是面板122上用于与端板121连接的部分。沿第一方向，连接部1222凸出于板体1221。可选地，板体1221和连接部1222连接形成L形结构。
介质流道一部分形成于端板121，介质流道的一部分形成于连接部1222。介质流道可以部分位于板体1221内，也可以不位于板体1221内。
通过使连接部1222沿第一方向凸出于板体1221，以便于通过连接部1222将面板122连接于端板121，例如，便于将连接部1222与端板121焊接。板体1221是围成箱体10的容纳空间的一个壁，介质流道部分形成于连接部1222，在连接部1222与端板121连接后，介质流道位于容纳空间的外侧，介质流道内的换热介质不易对容纳空间内的设备造成损害。
请参照图10和图11，图10为本申请一些实施例提供的第二箱体12的俯视示意图。图11为图10中A-A位置的剖视图。在一些实施例中，连接部1222设置有安装结构124，安装结构124用于安装内部设备。内部设备容纳于箱体10内。
安装结构124是用于将内部设备安装固定于箱体10的结构。内部设备可以为电池单体、电池模组等。
安装结构124可以是通孔、盲孔、螺纹孔、挂钩、滑轨、导轨、锁扣等结构。安装结构124可以是连接部1222上直接形成的结构，与连接部1222一体成型。例如，安装结构124是连接部1222上加工形成的螺纹孔，或安装结构124是与连接部1222一体挤出成型的轨道。安装结构124还可以是形成于与连接部1222连接的其他零件上的，例如安装结构124为套筒、螺母等零件上的螺纹孔，或安装结构124是导轨上的轨道。
通过在连接部1222上设置安装结构124，也即将安装结构124集成于面板122，便于将内部设备安装固定于连接部1222上。这样，可以减少设备安装梁的个数，使得箱体10零部件更加简化。另外，设备安装梁的个数减少，需要焊接的位置也相应减少，有利于简化生产，提高生产效率。
请参照图10和图11，在一些实施例，安装结构124包括安装孔。
安装孔可以直接设置于连接部1222。沿连接部1222的厚度方向，安装孔从连接部1222面向箱体10内侧的表面向背离箱体10内侧的表面凹陷。安装孔可以是圆孔、方孔、六棱孔等。
安装孔的数量可以是一个或者多个，多个是指两个及两个以上。在安装孔为多个的实施例中，多个安装孔间隔布置。
安装结构124为设置于连接部1222上的安装孔，有利于简化箱体10的结构和减轻箱体10的重量。
在一些实施例中，安装孔设置有内螺纹。
安装孔设置有内螺纹，则内部设备可以与安装孔螺纹配合，从而实现箱本体与内部设备连接，连接方式简单方便，稳定性较好。
在另一些实施例中，安装孔的孔壁面为光滑的平面或者曲面。
请参照图10和图11，在一些实施例，安装孔为盲孔。
安装孔为盲孔，意味着安装孔不会贯穿连接部1222，降低安装孔的设置对连接部1222的结构强度的影响，还可以不需要在安装孔处进行密封处理，降低箱体10的制造难度。
在另一些实施例中，安装孔也可以为通孔。
请参照图10和图11，在一些实施例，连接部1222设置有多个安装结构124，多个安装结构124间隔设置。
多个安装结构124可以是沿着垂直于第一方向的方向间隔排布。多个安装结构124也可以是呈矩阵排布。
连接部1222设置有多个间隔设置的安装结构124，连接部1222和内部设备之间可以形成有多个安装位置，不仅能够使得箱体10和内部设备之间的连接更加稳定，还能减小每个安装位置承受的载荷。
请参照图12和图13，图12为本申请一些实施例提供的第二箱体12的仰视示意图。 图13为图12中B-B位置的剖视图。连接部1222设置有挂载结构125，挂载结构125用于将箱体10与外部设备连接。外部设备位于箱体10外。
挂载结构125是用于将箱体10安装固定于外部设备的结构。外部设备可以为用电设备、运输设备、储存设备等。
挂载结构125可以是通孔、盲孔、螺纹孔、挂钩、滑轨、导轨、锁扣等结构。挂载结构125可以是连接部1222上直接形成的结构，与连接部1222一体成型。例如，挂载结构125是连接部1222上加工形成的螺纹孔，或挂载结构125是与连接部1222一体挤出成型的轨道。挂载结构125还可以是形成于与连接部1222连接的其他零件上的，例如挂载结构125为套筒、螺母等零件上的螺纹孔，或挂载结构125是导轨上的轨道。
通过在连接部1222上设置挂载结构125，也即将安装结构124和挂载结构125均集成于面板122，便于将外部设备安装固定于连接部1222上。这样，可以减少挂载安装梁的个数，使得箱体10零部件更加简化。另外，挂载安装梁的个数减少，需要焊接的位置也相应减少，有利于简化生产，提高生产效率。
在一些实施例中，挂载结构125包括挂载孔。
挂载孔可以直接设置于连接部1222。沿连接部1222的厚度方向，挂载孔从连接部1222背离箱体10内侧的表面向面向箱体10内侧的表面凹陷。挂载孔可以是圆孔、方孔、六棱孔等。
挂载孔的数量可以是一个或者多个，多个是指两个及两个以上。在挂载孔为多个的实施例中，多个挂载孔间隔布置。
挂载结构125为设置于连接部1222上的挂载孔，有利于简化箱体10的结构和减轻箱体10的重量。
在一些实施例中，挂载孔设置有内螺纹。
挂载孔设置有内螺纹，则外部设备可以与挂载孔螺纹配合，从而实现箱本体与外部设备连接，连接方式简单方便，稳定性较好。
在另一些实施例中，挂载孔的孔壁面为光滑的平面或者曲面。
在一些实施例中，挂载孔为盲孔。
挂载孔为盲孔，意味着挂载孔不会贯穿连接部1222，降低挂载孔的设置对连接部1222的结构强度的影响，还可以不需要在挂载孔处进行密封处理，降低箱体10的制造难度。
请参照图14、图15和图16，图14为本申请另一些实施例提供的第二箱体12的仰视示意图。图15为图14中C-C位置的剖视图。图16为图15中D位置的放大图。在另一些实施例中，箱体10包括设置于连接部1222的挂载件126，挂载结构125设置于挂载件126上。
挂载件126与连接部1222可以是固定连接，比如粘接、焊接等。挂载件126与连接部1222也可以是可拆卸连接，比如通过螺栓、螺钉等连接。外部设备与连接部1222通过挂载件126连接。挂载结构125通过挂载件126间接设置于连接部1222上。挂载件126可以是挂载梁、角件、加强板等结构件，挂载件126还可以是套筒、螺母、滑轨等标准工业件。挂载件126上可以通过加工形成通孔、螺纹孔、卡槽等挂载结构125。挂载件126还可以是标准工业件上自带的连接结构，例如挂载件126为螺母时，挂载结构125为螺母上的螺纹孔。
连接部1222可以包括一个挂载件126，也可以包括多个挂载件126。在连接部1222包括多个挂载件126的实施例中，多个挂载件126间隔布置于连接部1222。
一个挂载件126上可以设置一个挂载结构125，也可以设置多个挂载结构125。
挂载结构125设置于挂载件126，可以通过挂载件126实现箱体10和外部设备连接，使得箱体10和外部设备连接更加方便。
在一些实施例，挂载件126与连接部1222焊接。
挂载件126与连接部1222可以通过激光焊接、超声焊接、电阻焊、气焊等方式实现焊接连接。
挂载件126与连接部1222焊接，不仅连接方式方便，还能使得挂载件126和连接部1222之间的连接强度较好，具有较大的承载能力。
请参照图14、图15和图16，在一些实施例中，挂载件126为套筒，套筒具有内螺纹。
挂载件126为套筒并在套筒内设有内螺纹，挂载件126与外部设备螺纹配合以实现将箱体10挂载于外部设备，挂载方式简单、方便且稳定性好。
请参照图14、图15和图16，在一些实施例中，连接部1222设置有多个挂载结构125，多个挂载结构125间隔设置。
多个挂载结构125可以是沿着垂直于第一方向的方向间隔排布。多个挂载结构125也可以是呈矩阵排布。
箱体10包括多个间隔设置的挂载结构125，箱体10和外部设备之间可以形成有多个挂载位置，不仅能够使得箱体10和外部设备之间的连接更加稳定，还能减小每个挂载位置承受的载荷。
在一些实施例中，板体1221和连接部1222一体成型。
板体1221和连接部1222一体成型是指板体1221和连接部1222在制造时即为一体结构。板体1221和连接部1222可以是通过压铸一体成型，板体1221和连接部1222也可以是通过浇铸一体成型。
通过将板体1221和连接部1222一体成型，整体性较好，面板122的强度较高。
在一些实施例中，箱体10包括侧板127，侧板127与面板122相对设置。侧板127连接于端板121的另一端。
面板122和侧板127分别连接于端板121的两端。沿第一方向，面板122和侧板127相对设置。面板122、端板121和侧板127连接形成U形结构。
在端壁上设置面板122和与面板122相对的侧板127，一方面，能够提高箱体10的结构强度，另一方面，能够限定出内部设备的容纳空间，使得内部设备稳定地装配于箱体10内，再一方面，面板122和侧板127凸出于端板121的表面，当内部设备通过胶水粘接于端板121时，能够有效地控制溢胶空间，降低因胶水溢出造成浪费和污染环境的风险。
在一些实施例中，箱体10包括第一箱体11和第二箱体12，第一箱体11和第二箱体12分体设置并连接。其中，第二箱体12包括端板121、面板122和侧板127，第一箱体11、端板121、面板122和侧板127共同限定出容纳空间。
“第一箱体11和第二箱体12分体设置并连接”是指在制造时，第一箱体11和第二箱体12提供时是分别提供的，后续将第一箱体11和第二箱体12连接在一起，例如，第一箱体11可以与第二箱体12螺栓连接。
端板121、面板122和侧板127均为第二箱体12的一部分。第二箱体12还可以包括其他壁。在本实施例中，第二箱体12与第一箱体11连接，共同形成箱体10的容纳空间。
通过设置第一箱体11和第二箱体12，便于分别制造并拼合形成箱体10。端板121、面板122和侧板127均位于第二箱体12。
可选地，在第一箱体11和第二箱体12之间设置有密封件13，密封件13用于密封第一箱体11和第二箱体12，以降低外界水汽进入到箱体10内的风险。
本申请实施例还提供了一种电池100，电池100包括电池单体和上述的箱体10，电池 单体容纳于箱体10内。
本申请实施例还提供了一种用电设备，用电设备包括上述的电池100，电池100用于为用电设备提供电能。
根据本申请的一些实施例，请参照图2～图16。
本申请实施例提供了一种箱体10，箱体10包括端板121、面板122和介质流道，面板122连接于端板121的一端。介质流道用于容纳换热介质，介质流道至少部分位于端板121。介质流道具有介质入口1234和介质出口1235，介质入口1234和/或介质出口1235设置于面板122。
该箱体10设置有介质流道，介质流道用于通入换热介质，以对箱体10内的设备进行热管理。介质流道至少部分位于端板121，介质流道的介质入口1234和/或介质出口1235设置于面板122，通过面板122上的介质入口1234和/或介质出口1235可直接使换热介质进入和/或流出介质流道，可减少或不使用管路连接端板121和面板122，从而降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
介质流道包括第一流道1232和第二流道1231，第一流道1232设置于端板121，第二流道1231设置于面板122。第二流道1231与第一流道1232连通，第二流道1231在面板122上形成有介质入口1234或介质出口1235。端板121上设置有第一流道1232，面板122上设置有第二流道1231，第一流道1232和第二流道1231连通，这样，可以通过面板122上的第二流道1231向端板121上的第一流道1232供给换热介质，或者可以通过第二流道1231使第一流道1232内的换热介质流出，可减少或不使用管路连接端板121和面板122，从而降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
介质流道包括两个第二流道1231，第一流道1232连通两个第二流道1231。一个第二流道1231在面板122上形成有介质入口1234，另一个第二流道1231在面板122上形成有介质出口1235。端板121上设置有第一流道1232，面板122上设置有两个独立的第二流道1231，第一流道1232连通两个第二流道1231，这样，可以通过面板122上的一个第二流道1231向端板121上的第一流道1232供给换热介质，通过另一个第二流道1231使第一流道1232内的换热介质流出，可进一步减少或不使用管路连接端板121和面板122，从而降低管路对箱体10的内部空间的占用，有利于提升电池100的能量密度。
沿第一方向，面板122连接于端板121的一端。面板122包括板体1221和连接部1222，连接部1222沿第一方向凸出于板体1221。连接部1222连接端板121和板体1221，介质流道部分形成于连接部1222。通过使连接部1222沿第一方向凸出于板体1221，以便于通过连接部1222将面板122连接于端板121，例如，便于将连接部1222与端板121焊接。板体1221是围成箱体10的容纳空间的一个壁，介质流道部分形成于连接部1222，在连接部1222与端板121连接后，介质流道位于容纳空间的外侧，介质流道内的换热介质不易对容纳空间内的设备造成损害。
连接部1222设置有安装结构124，安装结构124用于安装内部设备，内部设备容纳于箱体10内。通过在连接部1222上设置安装结构124，也即将安装结构124集成于面板122，便于将内部设备安装固定于连接部1222上。这样，可以减少设备安装梁的个数，使得箱体10零部件更加简化。另外，设备安装梁的个数减少，需要焊接的位置也相应减少，有利于简化生产，提高生产效率。
连接部1222设置有挂载结构125，挂载结构125用于将箱体10与外部设备连接，外部设备位于箱体10外。通过在连接部1222上设置挂载结构125，也即将安装结构124和挂载结构125均集成于面板122，便于将外部设备安装固定于连接部1222上。这样，可以减少挂载安装梁的个数，使得箱体10零部件更加简化。另外，挂载安装梁的个数减少，需要焊接的位置也相应减少，有利于简化生产，提高生产效率。
板体1221和连接部1222一体成型。通过将板体1221和连接部1222一体成型，整体性较好，面板122的强度较高。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人 员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (24)

  1. 一种箱体，其中，包括：
    端板；
    面板，连接于所述端板的一端；
    介质流道，用于容纳换热介质，所述介质流道至少部分位于所述端板，所述介质流道具有介质入口和介质出口，所述介质入口和/或所述介质出口设置于所述面板。
  2. 根据权利要求1所述箱体，其中，所述介质流道包括第一流道和第二流道，所述第一流道设置于所述端板，所述第二流道设置于所述面板，所述第二流道与所述第一流道连通，所述第二流道在所述面板上形成有所述介质入口或所述介质出口。
  3. 根据权利要求2所述箱体，其中，所述端板包括第一表面，所述第一流道在所述第一表面形成第一开口，所述面板包括第二表面，所述第二流道在所述第二表面形成第二开口，所述第一表面和所述第二表面贴合，所述第一开口与所述第二开口至少部分相对，以使所述第一流道与所述第二流道连通。
  4. 根据权利要求2或3所述箱体，其中，所述第二流道在所述面板背离所述端板的表面形成所述介质入口或所述介质出口。
  5. 根据权利要求2-4任一项所述箱体，其中，沿第一方向，所述面板连接于所述端板的一端，所述第二流道沿所述第一方向贯穿所述面板相对设置的两个表面。
  6. 根据权利要求2-5任一项所述箱体，其中，所述第二流道包括第一段和第二段，所述第一段与所述第二段连通，所述第一段的背离所述第二段的一端形成所述介质入口或所述介质出口，所述第二段与所述第一流道连通，所述第一段的横截面为圆形，所述第二段和所述第一流道的横截面均为方形。
  7. 根据权利要求2-6任一项所述箱体，其中，所述介质流道包括两个所述第二流道，所述第一流道连通两个所述第二流道，一个所述第二流道在所述面板上形成有所述介质入口，另一个所述第二流道在所述面板上形成有所述介质出口。
  8. 根据权利要求1-7任一项所述箱体，其中，沿第一方向，所述面板连接于所述端板的一端，所述面板包括板体和连接部，所述连接部沿所述第一方向凸出于所述板体，所述连接部连接所述端板和所述板体，所述介质流道部分形成于所述连接部。
  9. 根据权利要求8所述箱体，其中，所述连接部设置有安装结构，所述安装结构用于安装内部设备，所述内部设备容纳于所述箱体内。
  10. 根据权利要求9所述箱体，其中，所述安装结构包括安装孔，所述安装孔设置有内螺纹。
  11. 根据权利要求10所述箱体，其中，所述安装孔为盲孔。
  12. 根据权利要求9-11任一项所述箱体，其中，所述连接部设置有多个所述安装结构，多个所述安装结构间隔设置。
  13. 根据权利要求8-12任一项所述箱体，其中，所述连接部设置有挂载结构，所述挂载结构用于将所述箱体与外部设备连接，所述外部设备位于所述箱体外。
  14. 根据权利要求13所述箱体，其中，所述挂载结构包括挂载孔，所述挂载孔设置有内螺纹。
  15. 根据权利要求14所述箱体，其中，所述挂载孔为盲孔。
  16. 根据权利要求13-15任一项所述箱体，其中，所述箱体包括设置于连接部的挂载件，所述挂载结构设置于所述挂载件上。
  17. 根据权利要求16所述箱体，其中，所述挂载件与所述连接部焊接。
  18. 根据权利要求16或17所述箱体，其中，所述挂载件为套筒，所述套筒具有内螺纹。
  19. 根据权利要求13-18任一项所述箱体，其中，所述连接部设置有多个所述挂载结构，多个所述挂载结构间隔设置。
  20. 根据权利要求8-19任一项所述箱体，其中，所述板体和所述连接部一体成型。
  21. 根据权利要求1-20任一项所述箱体，其中，所述箱体包括侧板，所述侧板与所述面板相对设置，所述侧板连接于所述端板的另一端。
  22. 根据权利要求21所述箱体，其中，所述箱体包括第一箱体和第二箱体，所述第一箱体和所述第二箱体分体设置并连接；
    所述第二箱体包括所述端板、所述面板和所述侧板，所述第一箱体、所述端板、所述面板和所述侧板共同限定出容纳空间。
  23. 一种电池，其中，包括：
    电池单体；
    根据权利要求1-22任一项所述箱体，所述电池单体容纳于所述箱体内。
  24. 一种用电设备，其中，包括根据权利要求23所述的电池，所述电池用于为所述用电设备提供电能。
PCT/CN2023/107038 2023-06-12 2023-07-12 箱体、电池及用电设备 Ceased WO2024254932A1 (zh)

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CN207818850U (zh) * 2018-03-02 2018-09-04 宁德时代新能源科技股份有限公司 电池模组
CN112993474A (zh) * 2019-12-16 2021-06-18 欣旺达电动汽车电池有限公司 电池包下箱体及电池包
CN216213861U (zh) * 2021-09-29 2022-04-05 北京胜能能源科技有限公司 电池模组、电池包以及车辆
CN114530643A (zh) * 2020-10-30 2022-05-24 恒大新能源技术(深圳)有限公司 电池包箱体及电池包
WO2023004724A1 (zh) * 2021-07-29 2023-02-02 宁德时代新能源科技股份有限公司 换热构件及其制造方法和制造系统、电池以及用电装置

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CN207818850U (zh) * 2018-03-02 2018-09-04 宁德时代新能源科技股份有限公司 电池模组
CN112993474A (zh) * 2019-12-16 2021-06-18 欣旺达电动汽车电池有限公司 电池包下箱体及电池包
CN114530643A (zh) * 2020-10-30 2022-05-24 恒大新能源技术(深圳)有限公司 电池包箱体及电池包
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