WO2024036544A1 - 电池箱体、电池及用电装置 - Google Patents

电池箱体、电池及用电装置 Download PDF

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Publication number
WO2024036544A1
WO2024036544A1 PCT/CN2022/113175 CN2022113175W WO2024036544A1 WO 2024036544 A1 WO2024036544 A1 WO 2024036544A1 CN 2022113175 W CN2022113175 W CN 2022113175W WO 2024036544 A1 WO2024036544 A1 WO 2024036544A1
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WO
WIPO (PCT)
Prior art keywords
battery
box
heating
area
box cover
Prior art date
Application number
PCT/CN2022/113175
Other languages
English (en)
French (fr)
Inventor
何润泳
陈兴地
王鹏
方郑宇
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to CN202280006357.3A priority Critical patent/CN116171501A/zh
Priority to PCT/CN2022/113175 priority patent/WO2024036544A1/zh
Priority to CN202223402866.4U priority patent/CN219457774U/zh
Publication of WO2024036544A1 publication Critical patent/WO2024036544A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery box, a battery and an electrical device.
  • Power battery refers to the power source that provides the power source for tools or equipment.
  • power batteries are widely used in electric vehicles. With the development of electric vehicles, power batteries have become a core component and therefore have great market demand.
  • batteries are particularly sensitive to operating temperature, especially when operating in winter, and their battery life is greatly reduced, which has become a pain point and difficulty in the electric vehicle industry.
  • thermal insulation measures are required to keep the battery at a suitable operating temperature, but the insulation effect is not ideal.
  • the present application provides a battery box, battery and electrical device, which can alleviate the problem of unsatisfactory thermal insulation effect when the battery adopts thermal insulation measures during winter operation.
  • this application provides a battery box, including:
  • the box body and the box lid are mutually closed to jointly define the accommodation cavity;
  • a heating structure is provided on the box cover, and the heating structure includes at least one of a conductive heating plate or a heating film.
  • the above-mentioned box cover by arranging a heating structure including at least one of a conductive heating plate or a heating film on the box cover, can control the operation of the heating structure to heat the box cover under low temperature conditions, thereby conducting heat to the battery box. inside the body to increase the overall temperature of the battery and ensure battery life and safety.
  • the conductive heating plate or heating film since the conductive heating plate or heating film has a large heating area, it can heat everywhere inside the battery as much as possible in a limited space, improving the heating uniformity.
  • the heating structure includes a plurality of sub-heating structures, and each sub-heating structure is spaced apart from each other. By forming and arranging multiple sub-heating structures, multiple different locations of the battery can be adaptively heated, thereby making the temperature within the battery uniform.
  • At least two sub-heating structures operate at different powers. By setting at least two sub-heating structures with different working powers, different heating temperatures can be provided according to different positions of the battery, thereby making the internal temperature of the battery more consistent.
  • the heating structure includes a conductive heating plate
  • the box cover is integrally formed with the heating structure. Since the conductive heating plate has a certain structural strength, it can be used as at least part of the box cover, so that the structure of the battery box can be made more compact, thereby freeing up more space for the battery cells.
  • the heating structure is bonded to the lid.
  • the connection method of the heating structure to the box cover can be simplified, and the impact on the heating structure and its heating performance can be reduced.
  • the heating structure is provided on a side of the box cover facing away from the box body. Since the bottom of the box cover usually faces electrical connection structures such as busbars, locating the heating structure on the side of the box cover away from the box body can isolate the heating structure from these electrical connection structures through the box cover and avoid overlapping. This can cause a short circuit, which can lead to safety issues.
  • the battery box is mounted to a vehicle, the vehicle includes a body, and the box cover is configured as part of the body. On the one hand, it can save the space occupied by the battery box on the vehicle. On the other hand, since the box cover is also constructed as a part of the body, the function of this part of the body can be increased.
  • the present application provides a battery, including the battery box and battery cells in any of the above embodiments, and the battery cells are accommodated in a receiving cavity.
  • the above-mentioned battery by arranging a heating structure including at least one of a conductive heating plate or a heating film on the lid, can heat the lid by controlling the operation of the heating structure at low temperatures, thereby conducting heat to the battery box. inside to increase the overall temperature of the battery and ensure battery life and safety.
  • the conductive heating plate or heating film since the conductive heating plate or heating film has a large heating area, it can heat everywhere inside the battery as much as possible in a limited space, improving the heating uniformity.
  • the side of the box cover facing the box body is connected to the battery cells for carrying the battery cells.
  • the present application provides an electrical device, including the battery in any of the above embodiments.
  • the above-mentioned electrical device by arranging a heating structure including at least one of a conductive heating plate or a heating film on the box cover, can heat the box cover by controlling the operation of the heating structure at low temperatures, and then conduct the heat to the battery. inside the box to increase the overall temperature of the battery and ensure battery life and safety.
  • the conductive heating plate or heating film since the conductive heating plate or heating film has a large heating area, it can heat everywhere inside the battery as much as possible in a limited space, improving the heating uniformity.
  • the electrical device is a vehicle, the vehicle includes a floor, and the lid is configured as at least a portion of the floor.
  • the lid is able to heat not only the interior of the battery but also the passenger compartment.
  • the floor includes a seating area and a non-seating area connected to the seating area, and an orthographic projection area of the heating structure toward the floor is located in the non-seating area.
  • an orthographic projection area of the heating structure toward the floor is located in the non-seating area.
  • the seat area includes a front seat area and a rear seat area
  • the non-seat area includes a first non-seat area and a second non-seat area
  • the first non-seat area is located in the front row.
  • the seat area is on the side away from the rear seat area, and the second non-seat area is located between the front seat area and the rear seat area;
  • the area of the heating structure's orthographic projection towards the floor is located in the first non-seating area and/or the second non-seating area. In this way, heating can be performed where the passengers put their feet, which improves the comfort of the entire vehicle.
  • the area of the orthogonal projected area of the heating structure towards the floor is at least half the area of the first non-seating area and/or at least half the area of the second non-seating area. It has been found that the heating structure can perform better when the area of the orthogonal projection area of the heating structure toward the floor is at least half of the area of the first non-seat area and/or at least half of the area of the second non-seat area. It combines the functions of heating the battery and heating the interior of the car body.
  • the box cover includes a first body and a second body.
  • the first body and the box body cover each other to jointly define an accommodating cavity.
  • the second body is disposed on a side of the first body facing away from the accommodating cavity.
  • the first body is detachably connected to the second body, and the heating structure is provided on a side of the second body away from the first body;
  • the second body is configured as at least part of the floor.
  • the box body and the first body can be disassembled from the floor as a whole, which not only facilitates maintenance of the internal parts of the battery. components, and after disassembly, since the first body cover is disposed at the opening, the components in the box are protected from damage.
  • Figure 1 is a schematic structural diagram of a vehicle provided by some embodiments of the present application.
  • Figure 2 is a schematic diagram of the exploded structure of a battery according to some embodiments of the present application.
  • Figure 3 is a schematic structural diagram of a box cover in an embodiment of the present application.
  • Figure 4 is a schematic cross-sectional structural diagram of a vehicle chassis in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of the chassis of a vehicle in an embodiment of the present application.
  • FIG. 6 is a schematic top structural view of the chassis of the vehicle shown in Figure 5;
  • Figure 7 is a schematic structural diagram of a box cover in other embodiments of the present application.
  • Box cover 11 heating structure 111, first sub-heating structure 1111, second sub-heating structure 1112, third sub-heating structure 1113, first body 112, second body 113, box body 12, accommodation cavity 13;
  • the first non-seat area A21 and the second non-seat area A22 are identical to each other.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • multiple refers to more than two (including two).
  • multiple groups refers to two or more groups (including two groups), and “multiple pieces” refers to It is more than two pieces (including two pieces).
  • batteries usually use battery modules that are assembled onto a battery box to form a battery structure. There is a gap between the battery module and the battery box, and the gap forms a path for heat dissipation from the battery module.
  • a common battery insulation measure is to fill the gap with an insulation structure, such as foam, and use the insulation structure to block the heat dissipation path of the battery module.
  • the battery box includes a box cover and a box body.
  • the box body and the box cover are closed with each other to jointly define a containing cavity.
  • a heating structure is provided on the box cover, and the heating structure includes at least one of a conductive heating plate or a heating film.
  • the batteries disclosed in the embodiments of the present application can be used in, but are not limited to, electrical devices such as vehicles, ships, or aircrafts.
  • Embodiments of the present application provide an electrical device that uses a battery as a power source.
  • the electrical device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc.
  • electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, electric airplane toys, etc.
  • spacecraft can include airplanes, rockets, space shuttles, spaceships, etc.
  • an electric device 1000 according to an embodiment of the present application is used as an example.
  • FIG. 1 is a schematic structural diagram of a vehicle 1000 provided by some embodiments of the present application.
  • the vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • the battery 100 is disposed inside the vehicle 1000 , and the battery 100 may be disposed at the bottom, head, or tail of the vehicle 1000 .
  • the battery 100 may be used to power the vehicle 1000 , for example, the battery 100 may serve as an operating power source for the vehicle 1000 .
  • the vehicle 1000 may also include a controller 200 and a motor 300 .
  • the controller 200 is used to control the battery 100 to provide power to the motor 300 , for example, for starting, navigating and driving the vehicle 1000 .
  • the battery 100 can not only be used as an operating power source for the vehicle 1000 , but also can be used as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .
  • the battery 100 includes a battery case 10 and battery cells 20 .
  • the battery cells 20 are accommodated in the battery case 10 .
  • the battery box 10 is used to provide accommodating space for the battery cells 20, and the battery box 10 can adopt a variety of structures.
  • the battery box 10 may include a box cover 11 and a box body 12 .
  • the box cover 11 and the box body 12 are coupled with each other.
  • the box cover 11 and the box body 12 jointly define a space for accommodating the battery cells 20 .
  • Cavity 13 The box body 12 can be a hollow structure with one end open, and the box cover 11 can be a plate-like structure.
  • the box cover 11 is closed on the open side of the box body 12 so that the box cover 11 and the box body 12 jointly define the accommodation cavity 13 .
  • the box cover 11 and the box body 12 can also be hollow structures with one side open, and the open side of the box cover 11 is closed with the open side of the box body 12 .
  • the battery box 10 formed by the box cover 11 and the box body 12 can be in various shapes, such as a cylinder, a rectangular parallelepiped, etc.
  • the battery 100 there may be a plurality of battery cells 20, and the plurality of battery cells 20 may be connected in series, in parallel, or in mixed connection.
  • Mixed connection means that the plurality of battery cells 20 are connected in series and in parallel.
  • the plurality of battery cells 20 can be directly connected in series or in parallel or mixed together, and then the whole composed of the plurality of battery cells 20 can be accommodated in the battery box 10 ; of course, the battery 100 can also be a plurality of battery cells. 20 are first connected in series, parallel, or mixed to form a battery module form, and then multiple battery modules are connected in series, parallel, or mixed to form a whole, and are accommodated in the battery box 10 .
  • the battery 100 may also include other structures.
  • the battery 100 may further include a bus component for realizing electrical connections between multiple battery cells 20 .
  • Each battery cell 20 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto.
  • the battery cell 20 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes.
  • Figure 3 is a schematic structural diagram of a box cover according to some embodiments of the present application.
  • the battery box 10 includes a box cover 11 and a box body 12 .
  • the box body 12 and the box cover 11 cover each other to jointly define an accommodating cavity 13 .
  • the box cover 11 is provided with a heating structure 111, and the heating structure 111 includes at least one of a conductive heating plate or a heating film.
  • a conductive heating plate refers to a plate-shaped component that can generate heat by energizing or supplying electricity to heat other components.
  • the heating film is a film-like component that can generate heat when energized to heat other components.
  • film/membrane-like component includes, but is not limited to, structures that are one or more layers, but such layers typically have a very small thickness, e.g., not one order of magnitude compared to their length and width.
  • the box cover 11 can be heated by controlling the operation of the heating structure 111 under low temperature conditions, thereby conducting heat to the battery box. inside the body 10 to increase the overall temperature of the battery 100 and ensure the battery life and safety of the battery 100.
  • the conductive heating plate or heating film has a large heating area, it can heat everywhere inside the battery 100 as much as possible in a limited space, thereby improving the heating uniformity.
  • the box cover 11 may include some support structures to support the heating film.
  • the heating structure 111 includes a plurality of sub-heating structures, and each sub-heating structure is spaced apart from each other.
  • each sub-heating structure may be the same or different.
  • the heating structure 111 includes three sub-heating structures. Specifically, the three sub-heating structures are the first sub-heating structure 1111, the second sub-heating structure 1112 and the third sub-heating structure 1113 respectively.
  • each sub-heating structure is connected to each other through a conductive member, or each sub-heating structure is separated from each other and can be individually energized.
  • multiple different locations of the battery 100 can be adaptively heated, thereby making the temperature inside the battery 100 uniform.
  • At least two sub-heating structures have different working powers.
  • the box cover 11 includes a central area and a surrounding area surrounding the central area, and the heating structure 111 is provided in the surrounding area.
  • the surrounding temperature of the battery 100 is usually very low and the middle temperature is very high. Therefore, by locating the heating structure 111 in the surrounding area, it is possible to avoid heat loss to the surrounding areas of the battery 100, thus ensuring the temperature consistency within the battery 100. .
  • the central area is in the shape of a rectangle
  • the surrounding area is in the shape of a rectangular ring.
  • the heating structure 111 includes a conductive heating plate, and the box cover 11 is integrally formed with the heating structure 111 .
  • the conductive heating plate Since the conductive heating plate has a certain structural strength, it can be used as at least part of the box cover 11 , thus making the battery box 10 more compact and freeing up more space for the battery cells 20 .
  • the orthographic projection of the conductive heating plate towards the box body 12 covers the entire opening.
  • the box lid 11 is configured to be formed only of the conductive heating plate.
  • the entire area of the accommodation cavity 13 can be heated by the conductive heating plate.
  • the heating structure 111 is bonded to the box cover 11 .
  • the connection method of the heating structure 111 to the box cover 11 can be simplified, and the impact on the heating structure 111 and its heating performance can be reduced.
  • the bonding method can further improve the tightness between the heating film and the box cover 11, thereby reducing heat loss and improving the heating effect.
  • the heating structure 111 can also be connected to the box cover 11 through fasteners such as screws, bolts, buckles, etc., which is not limited here.
  • the heating structure 111 is provided on the side of the box cover 11 facing away from the box body 12 .
  • the heating structure 111 is provided on the side of the box cover 11 away from the box body 12 , so that the heating structure 111 can be isolated from these electrical connection structures through the box cover 11 to avoid short circuit caused by overlapping, which may cause safety problems.
  • the battery box 10 is installed on a vehicle, the vehicle includes a body, and the box cover 11 is configured as a part of the body.
  • the space occupied by the battery box 10 on the vehicle can be saved; on the other hand, since the box cover 11 is also constructed as a part of the vehicle body, the function of this part of the vehicle body can be increased.
  • the vehicle body includes a chassis 400 of which the box cover 11 is configured. Since the battery 100 is usually located at the bottom of the vehicle body, the box cover 11 is constructed as a part of the chassis 400 , which can reduce the space occupied by the chassis 400 and increase the functionality of the chassis 400 .
  • the chassis 400 includes a floor 410 of which the lid 11 is constructed as part.
  • the present application provides a battery 100 .
  • the battery 100 includes the battery box 10 and the battery cells 20 in any of the above embodiments.
  • the battery cells 20 are accommodated in the accommodation cavity 13 .
  • the box cover 11 can be heated by controlling the operation of the heating structure 111 under low temperature conditions, thereby conducting heat to the battery box. inside the body 10 to increase the overall temperature of the battery 100 and ensure the battery life and safety of the battery 100.
  • the conductive heating plate or heating film has a large heating area, it can heat everywhere inside the battery 100 as much as possible in a limited space, thereby improving the heating uniformity.
  • the side of the box cover 11 facing the box body 12 is connected to the battery cells 20 for carrying the battery cells 20 .
  • the box cover 11 By arranging the box cover 11 as a carrier for carrying the battery cells 20, the battery cells 20 and the box cover 11 can be more closely connected. Therefore, the heat from the heating structure 111 can be quickly transmitted to the battery cells 20 to avoid heat loss.
  • the side of the box cover 11 facing the box body 12 and the battery cells 20 may also be spaced apart, which is not limited here.
  • the present application provides an electrical device, including the battery 100 in any of the above embodiments.
  • the box cover 11 By arranging the heating structure 111 of the box cover 11 including at least one of a conductive heating plate or a heating film, the box cover 11 can be heated by controlling the operation of the heating structure 111 under low temperature conditions, thereby conducting heat to the inside of the battery 100 , to increase the overall temperature of the battery 100 and ensure the battery life and safety of the battery 100 .
  • the conductive heating plate or heating film has a large heating area, it can heat everywhere inside the battery 100 as much as possible in a limited space, thereby improving the heating uniformity.
  • the electrical device is a vehicle 1000
  • the vehicle 1000 includes a floor 410
  • the box cover 11 is configured as at least part of the floor 410 .
  • the floor 410 as part of the chassis 500, usually only has a single load-bearing function, and the overall form and function are relatively single.
  • the floor 410 is usually a single-layer structure, which is easy to dissipate heat. In winter, the heat in the car is quickly lost through the floor 410. It is not conducive to the passenger riding experience. At the same time, if the battery 100 is placed at the bottom of the floor 410, the battery 100 will also take away heat due to the decrease in temperature of the floor 410, resulting in a low temperature of the battery 100.
  • the box cover 11 can not only heat the interior of the battery 100, but also heat the passenger compartment.
  • the box cover 11 is configured as the entire floor 410 , or may be configured as a part of the floor 410 , which is not limited here.
  • the floor 410 includes a seat area A1 and a non-seat area A2 connected to the seat area A1 , and the orthographic projection area of the heating structure 111 toward the floor 410 is located in the non-seat area A2 .
  • the seat area A1 refers to the orthogonal projection area of the seats in the vehicle body facing the floor 410 , where the seats include front seats, middle row seats, rear seats, etc.
  • Non-seat area A2 refers to other areas except seat area A1, such as the area in front of the front seats, the area between the front seats and the rear seats, the trunk area, etc., and is not included here. limit.
  • the orthographic projection area of the heating structure 111 toward the floor 410 specifically refers to the projection area of the heating structure 111 toward the floor 410 along the thickness direction of the floor 410 .
  • the interior of the vehicle body corresponding to the non-seat area A2 can be heated, so the heat can be directly transmitted to the interior of the vehicle body, and the heat can be prevented from being affected by other factors. It is lost due to the impact of components, such as the impact of seats, etc. In addition, there are usually many components placed under the seat, so the heating structure 111 being far away from the seat area A1 can also reduce the impact on these components.
  • the seat area A1 includes a front seat area A11 and a rear seat area A12
  • the non-seat area A2 includes a first non-seat area A21 and a second non-seat area Area A22
  • the first non-seat area A21 is located on the side of the front seat area A11 away from the rear seat area A12
  • the second non-seat area A22 is located between the front seat area A11 and the rear seat area A12. between.
  • the orthographic projection area of the heating structure 111 toward the floor 410 is located within the first non-seat area A21 and/or the second non-seat area A22.
  • the area of the orthographic projection area of the heating structure 111 toward the floor 410 is at least half of the area of the first non-seat area A21 and/or the area of the second non-seat area A22 At least half.
  • the heating structure 111 it can better exert its functions of heating the battery 100 and heating the interior of the vehicle body.
  • the box cover 11 includes a first body 112 and a second body 113.
  • the first body 112 and the box body 12 cover each other to jointly define a containing cavity.
  • the second body 113 is provided on the side of the first body 112 facing away from the accommodation cavity 13.
  • the first body 112 is detachably connected to the second body 113.
  • the heating structure 111 is provided on the second body 113 facing away from the first body 112. side.
  • the second body 113 is configured as at least part of the floor 410 .
  • the box body 12 and the first body 112 can be conveniently detached from the floor 410 as a whole. Not only is it convenient to repair the internal components of the battery 100, but after disassembly, since the first body 112 is covered at the opening, the components in the box body 12 are protected from damage.
  • the present application provides a battery box 10 .
  • the battery box 10 includes a box cover 11 and a box body 12.
  • the heating structure 111 is provided on the box cover 11 and is bonded to the side of the box cover 11 away from the box body 12.
  • the heating structure 111 includes at least one of a conductive heating plate or a heating film. A sort of.
  • the heating structure 111 includes a first sub-heating structure 1111, a second sub-heating structure 1112 and a third sub-heating structure 1113 spaced apart from each other. At least two of the first sub-heating structure 1111, the second sub-heating structure 1112 and the third sub-heating structure 1113 have different working powers.
  • the present application provides a battery 100 .
  • the battery 100 includes the battery box 10 and the battery cells 20 in the above embodiment.
  • the battery cells 20 are accommodated in the accommodation cavity 13 .
  • the present application provides an electrical device, including the battery 100 in the above embodiment.
  • the electrical device is a vehicle 1000.
  • the vehicle 1000 includes a floor 410, and a box cover 11 is Constructed as at least part of floor 410 .
  • the floor 410 includes a seat area A1 and a non-seat area A2 connected to the seat area A1.
  • the seat area A1 includes a front seat area A11 and a rear seat area A12.
  • the non-seat area A2 includes the first non-seat area A2.
  • the first non-seat area A21 is located on the side of the front seat area A11 away from the rear seat area A12, and the second non-seat area A22 is located on the front seat area.
  • the orthographic projection area of the heating structure 111 toward the floor 410 is located within the first non-seat area A21 and the second non-seat area A22.

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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)
  • Physics & Mathematics (AREA)
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  • Battery Mounting, Suspending (AREA)

Abstract

本申请涉及一种电池箱体(10)、电池(100)及用电装置。电池箱体(10)包括箱盖(11)和箱本体(12)，箱本体(12)与箱盖(11)相互盖合，以共同限定出容纳腔(13)。其中，箱盖(11)上设有加热结构(111)，加热结构(111)包括导电加热板或者加热膜中的至少一种。通过在箱盖(11)上设置包括导电加热板或者加热膜中的至少一种的加热结构(111)，能够在低温情况下，通过控制加热结构(111)工作，而加热箱盖(11)，进而将热量传导至电池箱体(10)的内部，以提高电池(100)的整体温度，确保电池(100)的续航能力和安全性。另外，由于导电加热板或者加热膜均具有较大的加热面积，能够在有限的空间内尽可能地对电池(100)的内部的各处进行加热，提高了加热均匀性。

Description

电池箱体、电池及用电装置 技术领域
本申请涉及电池技术领域，特别是涉及一种电池箱体、电池及用电装置。
背景技术
动力电池指的是为工具或设备提供动力来源的电源。例如，动力电池被广泛用于电动车辆中。随着电动车辆的发展，动力电池成为核心部件并因此具有很大的市场需求。
然而，电池对工作温度特别敏感，特别是在冬季运行时，续航能力大打折扣，已经成为电动车辆行业的痛点和难点。
通常，需要采取保温措施以将电池保持处于合适的工作温度下，但保温效果不理想。
发明内容
鉴于上述问题，本申请提供一种电池箱体、电池及用电装置，能够缓解电池在冬季运行时采取保温措施，但保温效果不理想的问题。
第一方面，本申请提供一种电池箱体，包括：
箱盖；以及
箱本体，与箱盖相互盖合，以共同限定出容纳腔；
其中，箱盖上设有加热结构，加热结构包括导电加热板或者加热膜中的至少一种。
上述箱盖，通过在箱盖上设置包括导电加热板或者加热膜中的至少一种的加热结构，能够在低温情况下，通过控制加热结构工作，而加热箱盖，进而将热量传导至电池箱体的内部，以提高电池的整体温度，确保电池的续航能力和安全性。另外，由于导电加热板或者加热膜均具有较大的加热面积，能够在有限的空间内尽可能地对电池的内部的各处进行加热，提高了加热均匀性。
在一些实施例中，加热结构包括多个子加热结构，各子加热结构彼此间隔设置。通过形成设置多个子加热结构，能够适应性地对电池的多个不同位置进行加热，进而使电池内的温度均匀。
在一些实施例中，至少两个子加热结构的工作功率不同。通过设置至少两个子加热结构的工作功率不同，能够依据电池的不同位置提供不同的加热温度，进而使使电池的内部温度的一致性更高。
在一些实施例中，加热结构包括导电加热板，箱盖与加热结构一体成型。由于导电加热板具有一定的结构强度，因此可以充当箱盖的至少部分使用，故能够使电池箱体的结构更加紧凑，进而为电池单体腾出更多容纳空间。
在一些实施例中，加热结构粘接于箱盖上。通过使加热结构粘接于箱盖上，能够简化加热结构连接于箱盖的连接方式，并且能够降低对加热结构产生影响，而影响其加热性能。
在一些实施例中，加热结构设于箱盖背离箱本体的一侧。由于箱盖下方面对的通常就是汇流排等电连接结构，将加热结构设于箱盖背离箱本体的一侧，能够将加热结构通过箱盖与这些电连接结构隔离开来，而避免搭接造成短路，进而引发安全问题。
在一些实施例中，电池箱体安装于车辆，车辆包括车身，箱盖被构造为车身的一部分。一方面能够节省电池箱体在车辆上的占用空间，另一方面，由于箱盖也被构造为车身的一部分，能够增加车身的该部分的功能。
第二方面，本申请提供一种电池，包括上述任意实施例中的电池箱体及电池单体，电池单体容纳于容纳腔。
上述电池，通过在箱盖上设置包括导电加热板或者加热膜中的至少一种的加热结构，能够在低温情况下，通过控制加热结构工作，而加热箱盖，进而将热量传导至电池箱体的内部，以提高电池的整体温度，确保电池的续航能力和安全性。另外，由于导电加热板或者加热膜均具有较大的加热面积，能够在有限的空间内尽可能地对电池的内部的各处进行加热，提高了加热均匀性。
在一些实施例中，箱盖朝向箱本体的一侧与电池单体相连，用于承载电池单体。通过设置箱盖作为承载电池单体的承载件，能够使电池单体与箱盖之间更加贴合，因此，来自加热结构的热量能够快速地传送至电池单体，避免了热量流失。
第三方面，本申请提供一种用电装置，包括上述任意实施例中的电池。
上述用电装置，通过在箱盖上设置包括导电加热板或者加热膜中的至少一种的加热结构，能够在低温情况下，通过控制加热结构工作，而加热箱盖，进而将热量传导至电池箱体的内部，以提高电池的整体温度，确保电池的续航能力和安全性。另外，由于导电加热板或者加热膜均具有较大的加热面积，能够在有限的空间内尽可能地对电池的内部的各处进行加热，提高了加热均匀性。
在一些实施例中，用电装置为车辆，车辆包括地板，箱盖被构造为地板的至少部分。通过设置箱盖被构造为地板的至少部分，使得箱盖不仅能够加热电池内部，而且兼具还能加热乘客舱。
在一些实施例中，地板包括座椅区域和与座椅区域相连的非座椅区域，加热结构朝向地板的正投影区域位于非座椅区域内。通过设置加热结构朝向地板的正投影区域位于非座椅区域内，能够对非座椅区域对应的车身内部进行加热，故能够使热量直接地传到车身内部，而避免热量受其他部件影响而流失，例如座椅影响等。另外，座椅下方也通常设置很多零部件，故加热结构远离座椅区域也能减小对该零部件的影响。
在一些实施例中，座椅区域包括前排座椅区域和后排座椅区域，非座椅区域包括第一 非座椅区域和第二非座椅区域，第一非座椅区域位于前排座椅区域远离后排座椅区域的一侧，第二非座椅区域位于前排座椅区域与后排座椅区域之间；
加热结构朝向地板的正投影区域位于第一非座椅区域和/或第二非座椅区域。如此，能够在乘客放脚的位置处进行加热，提高了整车舒适度。
在一些实施例中，加热结构朝向地板的正投影区域的面积为第一非座椅区域的面积的至少一半和/或第二非座椅区域的面积的至少一半。经研究发现，当加热结构朝向地板的正投影区域的面积为第一非座椅区域的面积的至少一半和/或第二非座椅区域的面积的至少一半时，加热结构能够更好地发挥其兼顾加热电池和加热车身内部的功能
在一些实施例中，箱盖包括第一本体和第二本体，第一本体与箱本体相互盖合，以共同限定出容纳腔，第二本体设于第一本体背向容纳腔的一侧，第一本体可拆卸地连接于第二本体，加热结构设于第二本体背离第一本体的一侧；
其中，第二本体被构造为地板的至少部分。通过设置第一本体可拆卸地连接于第二本体的一侧，且第二本体被构造为地板的至少部分，能够方便箱本体与第一本体整体从地板上拆卸下来，不仅方便维修电池内部的部件，并且在拆卸后，由于第一本体盖设于开口处，故对箱体内的部件进行保护，避免受损。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为本申请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的电池的分解结构示意图；
图3为本申请一实施例中的箱盖的结构示意图；
图4为本申请一实施例中的车辆底盘的剖面结构示意图；
图5为本申请一实施例中的车辆的底盘的的结构示意图；
图6为图5所示的车辆的底盘的俯视结构示意图；
图7为本申请另一些实施例中的箱盖的结构示意图。
具体实施方式中的附图标号如下：
车辆1000；
电池100；
控制器200；
马达300；
底盘400；
地板410；
箱体10；
箱盖11、加热结构111、第一子加热结构1111、第二子加热结构1112、第三子加热结构1113、第一本体112、第二本体113、箱本体12，容纳腔13；
电池单体20；
座椅区域A1；
前排座椅区域A11、后排座椅区域A12；
非座椅区域A2；
第一非座椅区域A21、第二非座椅区域A22。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多 组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
近年来，随着新能源汽车技术的不断发展和新能源汽车保有量的持续增加，急剧推动了动力电池行业的发展和动力电池技术的发展。
电池通常在15℃与35℃之间具有良好的工作性能。当工作温度低于15℃时，能源存储和动力输出效率将显著下降。这将大大缩短行驶里程并降低动力性能，并且还缩短使用寿命。此外，特别针对锂电池，锂电池在低温下的充电期间，容易从电解液中释放出锂，从而导致电池的不可逆的能量损失，并且释放的锂可能会穿过隔膜而导致安全事故。
为了解决电池低温下的续航等问题，在一些情形下，提出了对电池内部采取保温措施的方案。具体地，电池通常采用的是电池模组组装到电池箱体上，形成电池结构。电池模组与电池箱体之间留有缝隙，该缝隙形成了电池模组热量散出的路径。常用的电池保温措施是往该缝隙中填充保温结构，例如泡棉，通过保温结构隔断电池模组的散热路径，但仍然存在保温效果不理想的问题。
基于以上考虑，为了解决保温效果不理想的问题，申请人研究发现，设计了一种电池箱体。电池箱体包括箱盖以及箱本体。箱本体与箱盖相互盖合，以共同限定出容纳腔。其中，箱盖上设有加热结构，加热结构包括导电加热板或者加热膜中的至少一种。通过设置电池箱盖包括导电加热板或者加热膜中的至少一种的加热结构，能够在低温情况下，通过控制加热结构工作，而加热电池箱盖，进而热量传导至电池的内部，以提高电池的整体温度，确保电池的续航能力和安全性。
本申请实施例公开的电池可以但不限用于车辆、船舶或飞行器等用电装置中。
本申请实施例提供一种使用电池作为电源的用电装置，用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮 船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
以下实施例为了方便说明，以本申请一实施例的一种用电装置为车辆1000为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源。车辆1000还可以包括控制器200和马达300，控制器200用来控制电池100为马达300供电，例如，用于车辆1000的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
请参照图2，图2为本申请一些实施例提供的电池100的爆炸图。电池100包括电池箱体10和电池单体20，电池单体20容纳于电池箱体10内。其中，电池箱体10用于为电池单体20提供容纳空间，电池箱体10可以采用多种结构。在一些实施例中，电池箱体10可以包括箱盖11和箱本体12，箱盖11与箱本体12相互盖合，箱盖11和箱本体12共同限定出用于容纳电池单体20的容纳腔13。箱本体12可以为一端开口的空心结构，箱盖11可以为板状结构，箱盖11盖合于箱本体12的开口侧，以使箱盖11与箱本体12共同限定出容纳腔13。在其他实施例中，箱盖11和箱本体12也可以是均为一侧开口的空心结构，箱盖11的开口侧盖合于箱本体12的开口侧。当然，箱盖11和箱本体12形成的电池箱体10可以是多种形状，比如，圆柱体、长方体等。
在电池100中，电池单体20可以是多个，多个电池单体20之间可串联或并联或混联，混联是指多个电池单体20中既有串联又有并联。多个电池单体20之间可直接串联或并联或混联在一起，再将多个电池单体20构成的整体容纳于电池箱体10内；当然，电池100也可以是多个电池单体20先串联或并联或混联组成电池模块形式，多个电池模块再串联或并联或混联形成一个整体，并容纳于电池箱体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20之间的电连接。
其中，每个电池单体20可以为二次电池或一次电池；还可以是锂硫电池、钠离子电池或镁离子电池，但不局限于此。电池单体20可呈圆柱体、扁平体、长方体或其它形状等。
根据本申请的一些实施例，参照图2和图3，图3为根据本申请一些实施例的箱盖的结构示意图。本申请提供一种电池箱体10。电池箱体10包括箱盖11以及箱本体12。箱本体12与箱盖11相互盖合，以共同限定出容纳腔13。其中，箱盖11上设有加热结构111，加热结构111包括导电加热板或者加热膜中的至少一种。
导电加热板是指通过通电或者供电而使能发热以实现加热其他部件的的板状部件。
加热膜通电而能发热以实现加热其它部件的一种膜状部件。术语“膜/膜状部件”包括但不限于是一层或多层结构，但这种层通常具有非常小的厚度例如，与其长度和宽度相比，不在一个数量级上。
通过在箱盖11上设置包括导电加热板或者加热膜中的至少一种的加热结构111，能够在低温情况下，通过控制加热结构111工作，而加热箱盖11，进而将热量传导至电池箱体10的内部，以提高电池100的整体温度，确保电池100的续航能力和安全性。
另外，由于导电加热板或者加热膜均具有较大的加热面积，能够在有限的空间内尽可能地对电池100的内部的各处进行加热，提高了加热均匀性。
可选地，当加热结构111包括加热膜时，箱盖11可包括一些支撑结构以对加热膜进行支撑。
根据本申请的一些实施例，参照图3，加热结构111包括多个子加热结构，各子加热结构彼此间隔设置。
可选地，各子加热结构的面积可相同也可不同。
在本申请的实施方式中，加热结构111包括三个子加热结构，具体地，三个子加热结构分别为第一子加热结构1111、第二子加热结构1112和第三子加热结构1113。
可选地，各子加热结构彼此通过导电件相连，或者各子加热结构彼此分离而能够单独通电。
通过形成设置多个子加热结构，能够适应性地对电池100的多个不同位置进行加热，进而使电池100内的温度均匀。
根据本申请的一些实施例，参照图3，至少两个子加热结构的工作功率不同。
通过设置至少两个子加热结构的工作功率不同，能够依据电池100的不同位置提供不同的加热温度，进而使使电池100的内部温度的一致性更高。
根据本申请的一些实施例，参照图3，箱盖11包括中心区域和围绕中心区域的周围区域，加热结构111设于周围区域。
在低温环境下，电池100的四周温度通常很低，中间温度很高，故通过设将加热结构111设于周围区域，能够避免热量向电池100的四周流失，进而确保电池100内的温度一致性。
具体地，中心区域呈矩形状，周围区域呈矩形环状。
根据本申请的一些实施例，参照图3，加热结构111包括导电加热板，箱盖11与加热结构111一体成型。
由于导电加热板具有一定的结构强度，因此可以充当箱盖11的至少部分使用，故能够使电池箱体10的结构更加紧凑，进而为电池单体20腾出更多容纳空间。
可选地，导电加热板朝向箱本体12的正投影覆盖整个开口。
可选地，箱盖11被构造成仅由导电加热板形成。
如此，能够通过导电加热板对整个容纳腔13的区域进行加热。
根据本申请的另一些实施例，参照图3，加热结构111粘接于箱盖11上。
通过使加热结构111粘接于箱盖11上，能够简化加热结构111连接于箱盖11的连接方式，并且能够降低对加热结构111产生影响，而影响其加热性能。尤其是当加热结构11包括加热膜时，粘接的方式更能提高加热膜与箱盖11之间的结合紧密性，从而降低热量散失，以提高加热效果。
在其他实施方式中，加热结构111也可以通过螺钉、螺栓、卡扣等固定件连接于箱盖11上，在此不作限制。
根据本申请的一些实施例，参照图3，加热结构111设于箱盖11背离箱本体12的一侧。
由于箱盖11下方面对的通常就是汇流排等电连接结构，将加热结构111设于箱盖11背离箱本体12的一侧，能够将加热结构111通过箱盖11与这些电连接结构隔离开来，而避免搭接造成短路，进而引发安全问题。
根据本申请的一些实施例，参照图3～图5，电池箱体10安装于车辆，车辆包括车身，箱盖11被构造为车身的一部分。
一方面能够节省电池箱体10在车辆上的占用空间，另一方面，由于箱盖11也被构造为车身的一部分，能够增加车身的该部分的功能。
可选地，车身包括底盘400，箱盖11被构造为底盘400的一部分。由于电池100通常设于车身底部，因此，箱盖11被构造为底盘400的一部分，能够减小对底盘400的占用空间，并增加底盘400的功能。
可选地，底盘400包括地板410，箱盖11被构造为地板410的一部分。
根据本申请的一些实施例，参照图3～图5，本申请提供了一种电池100。电池100包括上任意实施例中的电池箱体10及电池单体20。电池单体20容纳于容纳腔13。
通过在箱盖11上设置包括导电加热板或者加热膜中的至少一种的加热结构111，能够在低温情况下，通过控制加热结构111工作，而加热箱盖11，进而将热量传导至电池箱体10的内部，以提高电池100的整体温度，确保电池100的续航能力和安全性。
另外，由于导电加热板或者加热膜均具有较大的加热面积，能够在有限的空间内尽可能地对电池100的内部的各处进行加热，提高了加热均匀性。
根据本申请的一些实施例，箱盖11朝向箱本体12的一侧与电池单体20相连，用于承载电池单体20。
通过设置箱盖11作为承载电池单体20的承载件，能够使电池单体20与箱盖11之间更加贴合，因此，来自加热结构111的热量能够快速地传送至电池单体20，避免了热量流失。
在其他实施方式中，箱盖11朝向箱本体12的一侧与电池单体20之间也可间隔设置，在此不作限制。
根据本申请的一些实施例，本申请提供了一种用电装置，包括以上任意实施例中的电池100。
通过设置箱盖11包括导电加热板或者加热膜中的至少一种的加热结构111，能够在低温情况下，通过控制加热结构111工作，而加热箱盖11，进而将热量传导至电池100的内部，以提高电池100的整体温度，确保电池100的续航能力和安全性。
另外，由于导电加热板或者加热膜均具有较大的加热面积，能够在有限的空间内尽可能地对电池100的内部的各处进行加热，提高了加热均匀性。
根据本申请的一些实施例，参照图4～图6，用电装置为车辆1000，车辆1000包括地板410，箱盖11被构造为地板410的至少部分。
在一些情形下，地板410作为底盘500的一部分，通常只具有单一的承载作用，整体形式功能比较单一，且地板410通常为单层结构，容易散热，冬天时车内热量通过地板410快速散失，不利于乘客乘坐体验。同时若在地板410底部放置有电池100时，电池100也会因为地板410的温度降低而带走热量，从而导致电池100温度偏低。
故通过设置箱盖11被构造为地板410的至少部分，使得箱盖11不仅能够加热电池100内部，而且兼具还能加热乘客舱。
可选地，箱盖11被构造为地板410的全部，也可以被构造为地板410的一部分，在此不作限制。
根据本申请的一些实施例，参照图6，地板410包括座椅区域A1和与座椅区域A1相连的非座椅区域A2，加热结构111朝向地板410的正投影区域位于非座椅区域A2内。
座椅区域A1是指，车身内的座椅朝向地板410的正投影区域，其中，座椅包括前排座椅、中排座椅和后排座椅等。
非座椅区域A2是指，除座椅区域A1以外的其他区域，例如，前排座椅的前方区域，前排座椅和后排座椅之间的区域、后备箱区域等，在此不作限制。
加热结构111朝向地板410的正投影区域具体是指，加热结构111沿地板410的厚度方向朝向所述地板410的投影区域。
通过设置加热结构111朝向地板410的正投影区域位于非座椅区域A2内，能够对非座椅区域A2对应的车身内部进行加热，故能够使热量直接地传到车身内部，而避免热量受其他部件影响而流失，例如座椅影响等。另外，座椅下方也通常设置很多零部件，故加热结构111远离座椅区域A1也能减小对该零部件的影响。
根据本申请的一些实施例，参照图6，座椅区域A1包括前排座椅区域A11和后排座椅区域A12，非座椅区域A2包括第一非座椅区域A21和第二非座椅区域A22，第一非座椅 区域A21位于前排座椅区域A11远离后排座椅区域A12的一侧，第二非座椅区域A22位于前排座椅区域A11与后排座椅区域A12之间。加热结构111朝向地板410的正投影区域位于第一非座椅区域A21和/或第二非座椅区域A22内。
如此，能够在乘客放脚的位置处进行加热，提高了整车舒适度。
根据本申请的一些实施例，参照图6，加热结构111朝向地板410的正投影区域的面积为第一非座椅区域A21的面积的至少一半和/或第二非座椅区域A22的面积的至少一半。
经研究发现，当加热结构111朝向地板410的正投影区域的面积为第一非座椅区域A21的面积的至少一半和/或第二非座椅区域A22的面积的至少一半时，加热结构111能够更好地发挥其兼顾加热电池100和加热车身内部的功能。
根据本申请的一些实施例，参照图2、图6和图7，箱盖11包括第一本体112和第二本体113，第一本体112与箱本体12相互盖合，以共同限定出容纳腔13,，第二本体113设于第一本体112背向容纳腔13的一侧，第一本体112可拆卸地连接于第二本体113，加热结构111设于第二本体113背离第一本体112的一侧。其中，第二本体113被构造为地板410的至少部分。
通过设置第一本体112可拆卸地连接于第二本体113的一侧，且第二本体113被构造为地板410的至少部分，能够方便箱本体12与第一本体112整体从地板410上拆卸下来，不仅方便维修电池100内部的部件，并且在拆卸后，由于第一本体112盖设于开口处，故对箱本体12内的部件进行保护，避免受损。
根据本申请的一些实施例，参阅图2和图3，本申请提供一种电池箱体10。电池箱体10包括箱盖11和箱本体12，加热结构111设于箱盖11，并粘接于箱盖11背离箱本体12的一侧，加热结构111包括导电加热板或者加热膜中的至少一种。加热结构111包括彼此间隔设置第一子加热结构1111、第二子加热结构1112和第三子加热结构1113。第一子加热结构1111、第二子加热结构1112和第三子加热结构1113中的至少两个工作功率不同。
根据本申请的一些实施例，参阅图2和图3，本申请提供一种电池100。电池100包括上述实施例中的电池箱体10及电池单体20。电池单体20容纳于容纳腔13内。
根据本申请的一些实施例，参阅图1～图6，本申请提供一种用电装置，包括上述实施例中的电池100，用电装置为车辆1000，车辆1000包括地板410，箱盖11被构造为地板410的至少部分。地板410包括座椅区域A1和与座椅区域A1相连的非座椅区域A2，座椅区域A1包括前排座椅区域A11和后排座椅区域A12，非座椅区域A2包括第一非座椅区域A21和第二非座椅区域A22，第一非座椅区域A21位于前排座椅区域A11远离后排座椅区域A12的一侧，第二非座椅区域A22位于前排座椅区域A11与后排座椅区域A12之间。加热结构111朝向地板410的正投影区域位于第一非座椅区域A21和第二非座椅区域A22内。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管 参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (15)

  1. 一种电池箱体(10)，包括：
    箱盖(11)；以及
    箱本体(12)，与所述箱盖(11)相互盖合，以共同限定出容纳腔(13)；
    其中，所述箱盖(11)上设有加热结构(111)，所述加热结构(111)包括导电加热板或者加热膜中的至少一种。
  2. 根据权利要求1所述的电池箱体(10)，其中，所述加热结构(111)包括多个子加热结构，各所述子加热结构彼此间隔设置。
  3. 根据权利要求2所述的电池箱体(10)，其中，至少两个所述子加热结构的工作功率不同。
  4. 根据权利要求1～3任一项所述的电池箱体(10)，其中，所述加热结构(111)包括所述导电加热板，所述箱盖(11)与所述加热结构(111)一体成型。
  5. 根据权利要求1～3任一项所述的电池箱体(10)，其中，所述加热结构(111)粘接于所述箱盖(11)上。
  6. 根据权利要求1～5任一项所述的电池箱体(10)，其中，所述加热结构(111)设于所述箱盖(11)背离所述箱本体(12)的一侧。
  7. 根据权利要求1～6任一项所述的电池箱体(10)，其中，所述电池箱体(10)安装于车辆，所述车辆包括车身，所述箱盖(11)被构造为所述车身的一部分。
  8. 一种电池(100)，包括如权利要求1～7任一项所述的电池箱体(10)及电池单体(20)，所述电池单体(20)容纳于所述容纳腔(13)。
  9. 根据权利要求8所述的电池(100)，其中，所述箱盖(11)朝向所述箱本体(12)的一侧与所述电池单体(20)相连，用于承载所述电池单体(20)。
  10. 一种用电装置，包括如权利要求8或9所述的电池(100)。
  11. 根据权利要求10所述的用电装置，其中，所述用电装置为车辆(1000)，所述车辆(1000)包括地板(410)，所述箱盖(11)被构造为所述地板(410)的至少部分。
  12. 根据权利要求11所述的用电装置，其中，所述地板(410)包括座椅区域(A1)和与所述座椅区域相连的非座椅区域(A2)，所述加热结构(111)朝向所述地板的正投影区域位于所述非座椅区域(A2)内。
  13. 根据权利要求12所述的用电装置，其中，所述座椅区域(A1)包括前排座椅区域(A11)和后排座椅区域(A12)，所述非座椅区域(A2)包括第一非座椅区域(A21)和第二非座椅区域(A22)，所述第一非座椅区域(A21)位于所述前排座椅区域(A11)远离所述后排座椅区域(A12)的一侧，所述第二非座椅区域(A12)位于所述前排座椅区域(A11) 与所述后排座椅区域(A12)之间；
    所述加热结构(111)朝向所述地板(410)的正投影区域位于所述第一非座椅区域(A21)和/或所述第二非座椅区域(A22)。
  14. 根据权利要求13所述的用电装置，其中，所述加热结构(111)朝向所述地板(410)的正投影区域的面积为所述第一非座椅区域(A21)的面积的至少一半和/或所述第二非座椅区域(A22)的面积的至少一半。
  15. 根据权利要求11～14任一项所述的用电装置，其中，所述箱盖(11)包括第一本体(112)和第二本体(113)，所述第一本体(112)与所述箱本体(12)相互盖合，以共同限定出所述容纳腔(13)，所述第二本体(113)设于所述第一本体(112)背向所述容纳腔(13)的一侧，所述第一本体(112)可拆卸地连接于第二本体(113)，所述加热结构(111)设于所述第二本体(113)背离所述第一本体(112)的一侧；
    其中，所述第二本体(113)被构造为所述地板(410)的至少部分。
PCT/CN2022/113175 2022-08-18 2022-08-18 电池箱体、电池及用电装置 WO2024036544A1 (zh)

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CN108183272A (zh) * 2017-01-06 2018-06-19 苏州汉纳材料科技有限公司 动力锂离子电池系统的热管理方法及热管理装置
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CN213584024U (zh) * 2020-10-22 2021-06-29 湖北亿纬动力有限公司 一种电池模组及电池箱
CN113555624A (zh) * 2021-06-08 2021-10-26 北京格睿能源科技有限公司 一种移动电源装置及其加热方法
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CN105051969A (zh) * 2013-03-29 2015-11-11 株式会社丰田自动织机 电池组
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