WO2025208751A1 - 电池及用电装置 - Google Patents

电池及用电装置

Info

Publication number
WO2025208751A1
WO2025208751A1 PCT/CN2024/109531 CN2024109531W WO2025208751A1 WO 2025208751 A1 WO2025208751 A1 WO 2025208751A1 CN 2024109531 W CN2024109531 W CN 2024109531W WO 2025208751 A1 WO2025208751 A1 WO 2025208751A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
adapter
housing
box
hole
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.)
Pending
Application number
PCT/CN2024/109531
Other languages
English (en)
French (fr)
Inventor
张文辉
龙超
姚鹏程
陈兴地
王鹏
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
Publication of WO2025208751A1 publication Critical patent/WO2025208751A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B60L50/64—Constructional details of batteries specially adapted for electric 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
    • H01M50/204—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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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 application relates to the field of battery production technology, in particular to batteries and electrical devices.
  • the present application provides a battery and an electrical device, aiming to improve the reliability of the battery to a certain extent.
  • the adapter includes a first adapter portion and a second adapter portion.
  • the first adapter portion extends into the shell to connect with the electrical components in the shell, and the second adapter portion extends into the through hole to connect with the components in the box, so as to facilitate the connection between the distribution box and the box.
  • the orthographic projection of the shell on the box wall covers the orthographic projection of the sealing member on the box wall.
  • the seal is configured to have an appropriate size. Not only can the adapter and the box be sealed, but the manufacturing cost of the seal can also be reduced.
  • the protrusion is used to define a sealing member to improve the sealing between the adapter and the box.
  • the box wall includes a heat exchange plate and a protective plate.
  • the heat exchange plate is arranged on the side of the protective plate away from the distribution box and is connected to the protective plate.
  • the heat exchange plate is thermally connected to the battery cell to regulate the temperature of the battery cell.
  • the through hole includes a first through hole and a second through hole.
  • the protective plate is provided with a first through hole, and the heat exchange plate is provided with a second through hole. The first through hole and the second through hole are connected.
  • the heat exchange plate and the protective plate are integrated into the box body, which is not only convenient for the installation of the distribution box, but also allows heat exchange with the battery cells, reduces the number of battery components, and improves the integration of the battery.
  • the sealing member is an elastic member.
  • the seal is an elastic member.
  • the seal increases the sealing area between the seal and the box wall through elastic deformation, thereby improving the sealing effect between the seal and the box wall.
  • the distribution box is protruding from the top of the box body.
  • such an arrangement can increase the reliability of the distribution box.
  • the housing and the distribution box are connected via connectors to improve the stability of the assembly of the housing and the distribution box.
  • the present application provides an electrical device comprising the aforementioned battery, wherein the battery is used to provide electrical energy.
  • FIG1 is a schematic structural diagram of a vehicle provided in one embodiment of the present application.
  • FIG3 is a schematic structural diagram of a cross-section of a battery provided in one embodiment of the present application.
  • FIG4 is a schematic diagram of a cross-sectional structure of a battery provided by some embodiments shown in FIG3 at point a-a;
  • Adapter seat 321. First adapter part; 322. Second adapter part; 40. Sealing member; 50. Connecting member.
  • references to "embodiments” in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application.
  • the appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.
  • 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., and the embodiments of this application do not limit this.
  • Battery cells may be cylindrical, flat, rectangular, or other shapes, etc., and the embodiments of this application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells, and the embodiments of this application do not limit this.
  • a battery cell consists of an electrode assembly and an electrolyte.
  • the electrode assembly consists of a positive electrode sheet, a negative electrode sheet, and a separator.
  • a battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work.
  • the positive electrode sheet consists of a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector not coated with the positive electrode active material layer protrudes from the coated positive electrode active material layer.
  • the current collector of the material layer, the current collector not coated with the positive electrode active material layer is stacked as the positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer is coated on the surface of the negative electrode current collector, the current collector not coated with the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer, and the current collector not coated with the negative electrode active material layer is stacked as the negative electrode tab.
  • the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc.
  • the battery cells and the distribution box are located in the same space within the battery housing. Thermal failure of the battery cells releases a large amount of heat, which can easily damage the distribution box. Therefore, the distribution box needs to be isolated from the housing to reduce damage.
  • a distribution box isolated from the housing requires a converter to connect the distribution box to the housing.
  • external contaminants such as liquids, can enter the distribution box and the housing through the converter, causing a short circuit and reducing battery reliability.
  • a battery comprising a housing, a battery cell, a distribution box, and a seal.
  • the adapter is directly connected to the housing, and the distribution box with the adapter is connected to the housing. This not only satisfies the connection strength between the adapter and the distribution box, reduces the probability of contaminants entering the distribution box through the adapter, improves the sealing between the two, but also simplifies the assembly of the distribution box and the housing, thereby improving the assembly efficiency of the battery.
  • the seal is arranged between the box wall and the housing and surrounds the through-hole to achieve a seal between the adapter and the housing, reducing the risk of external contaminants entering the housing through the through-hole, thereby improving the reliability of the battery.
  • Batteries can be used in vehicles, mobile phones, portable devices, laptops, ships, Spacecraft, electric toys and electric tools, etc.
  • Vehicles can be fuel vehicles, gas vehicles or new energy vehicles.
  • New energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc.
  • spacecraft include airplanes, rockets, space shuttles and spacecraft, 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 tab production equipment.
  • the battery may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.
  • Figure 2 is a schematic diagram of the structure of a battery provided in one embodiment of the present application.
  • Figure 3 is a structural schematic diagram of a battery cross section provided in one embodiment of the present application.
  • the present application provides a battery 100, which includes a housing 20, a battery cell 10, a distribution box 30, and a seal 40.
  • the housing 20 includes a housing wall 21, which is provided with a through hole 22.
  • the battery cell 10 is accommodated within the housing 20.
  • the distribution box 30 includes a shell 31 and an adapter 32.
  • the shell 31 is disposed outside the housing wall 21 and connected to the housing wall 21.
  • the adapter 32 is connected to the shell 31, and at least a portion of the adapter 32 is accommodated in the through hole 22.
  • the seal 40 is disposed between the housing wall 21 and the shell 31 and surrounds the through hole 22.
  • the box body 20 is used to accommodate the battery cells 10 .
  • the box body 20 can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells 10 to a certain extent.
  • the housing 20 may include a first housing and a second housing.
  • the first and second housings cover each other and together define a storage space for the battery cells 10.
  • the first housing may be a hollow structure with one end open, and the second housing may be a plate-like structure.
  • the second housing covers the open side of the first housing, so that the first and second housings together define a storage space.
  • the first and second housings may both be hollow structures with one end open, with the open side of the first housing covering the open side of the second housing.
  • the housing 20 formed by the first and second housings may take a variety of shapes, such as a cylinder or a rectangular parallelepiped.
  • a sealing member such as a sealant or a sealing ring, may be provided between the first and second housings. If the first housing covers the top of the second housing, the first housing may be referred to as the upper housing cover, and the second housing may be referred to as the lower housing.
  • the box body 20 includes a box wall 21, which can be one of the top wall, side wall, or bottom wall of the box body 20.
  • the box wall 21 is provided with a through hole 22, which allows an external component of the box body 20 to extend into the through hole 22, or allows an external component of the box body 20 to extend into the box body 20 through the through hole 22.
  • the distribution box 30 includes a shell 31 and an adapter 32.
  • the shell 31 can accommodate electrical components, which are electrically connected to the battery cells 10.
  • the distribution box 30 controls the battery 100.
  • the distribution box 30 plays a role in protecting the battery 100 and distributing power during the charging and discharging process of the battery 100.
  • the shell 31 is arranged on the outside of the box wall 21 and is connected to the box wall 21.
  • the box wall 21 can protect the distribution box 30 and reduce the risk of high-temperature substances released by the battery cell 10 damaging the electrical components. Placing the distribution box 30 outside the box body 20 can also improve the utilization rate of the internal space of the battery.
  • the battery 100 has a relatively high voltage. Directly connecting electrical appliances (such as motor controllers, air conditioning systems, and charging systems) to the battery 100 would create a cluttered wiring harness. Therefore, the battery 100 requires a power distribution box 30 to distribute the high voltage.
  • the power distribution box 30 utilizes a centralized power distribution solution, offering a compact design, convenient wiring layout, and quick and easy maintenance.
  • the shell 31 is connected to the box wall 21 by welding, bolt connection, hinge connection, clamping connection, adhesive connection, etc.
  • the distribution box 30 includes a housing 31 and an adapter 32.
  • the adapter 32 is connected to the housing 31, and at least a portion of the adapter 32 is accommodated in the through-hole 22. Because the distribution box 30 is disposed outside the housing 20, the adapter 32 is required to achieve the connection between the distribution box 30 and the housing 20.
  • the adapter 32 at least partially protrudes from the housing 20 and is accommodated in the through-hole 22 to achieve the connection between the distribution box 30 and the housing 20.
  • the adapter 32 and the housing 31 are separate structures.
  • the seal 40 is used to seal the box wall 21 and the shell 31.
  • the seal 40 is arranged between the box wall 21 and the shell 31 and surrounds the through hole 22 so that when the high-voltage box is assembled with the box wall 21, the seal The hole 40 contacts and abuts against the box wall 21, thereby forming a sealed connection between the housing 31 of the high-voltage box and the box wall 21, thereby reducing the entry of external pollutants into the box body 20 through the through hole 22.
  • the sealing member 40 is provided with a first surface and a second surface opposite to each other along the arrangement direction of the high-voltage box and the box body 20 .
  • the first surface abuts against the shell 31
  • the second surface abuts against the box wall 21 .
  • the sealing member 40 may be a sealing ring, a sealant, a sealing block with a hollow structure, or a sealing plate.
  • the battery 100 provided in the present application includes a housing 20, a battery cell 10, a distribution box 30, and a seal 40.
  • the housing 31 is arranged on the outside of the box wall 21 and is connected to the box wall 21, that is, the distribution box 30 is arranged on the outside of the housing 20.
  • the distribution box 30 and the housing 20 are independently arranged. The high-temperature gas leaked by the thermal failure of the battery cell 10 will not directly enter the distribution box 30, thereby reducing the thermal damage to the distribution box 30.
  • the adapter 32 is directly connected to the housing 31, and the distribution box 30 with the adapter 32 is connected to the housing 20.
  • the seal 40 is arranged between the box wall 21 and the shell 31 and surrounds the through hole 22 to achieve sealing between the adapter 32 and the box body 20, reducing the risk of external contaminants entering the box body 20 through the through hole 22, thereby improving the reliability of the battery 100.
  • the distribution box 30 includes an integrally formed housing 31 and an adapter 32.
  • the present embodiment does not limit the molding method of the housing 31 and the adapter 32.
  • the housing 31 and the adapter 32 are integrally stamped.
  • the housing 31 and the adapter 32 are vacuum die-cast.
  • the housing 31 and the adapter 32 are integrally provided, so that the housing 31 and the adapter 32 have a higher connection strength, and the housing 31 and the adapter 32 have a higher sealing performance, and the two are not easy to fall off when subjected to external force, thereby improving the reliability of the battery 100. sex.
  • FIG4 is a schematic diagram of the cross-sectional structure of the battery provided by some embodiments shown in FIG3 at point a-a;
  • FIG5 is a schematic diagram of the partially enlarged structure of the battery provided by some embodiments shown in FIG4 .
  • the adapter seat 32 includes a first adapter portion 321 and a second adapter portion 322, the first adapter portion 321 is connected to the shell 31 and extends into the shell 31, and the second adapter portion 322 is connected to the first adapter portion 321 and extends into the through hole 22.
  • the adapter 32 includes a first adapter portion 321 and a second adapter portion 322.
  • the first adapter portion 321 is connected to the housing 31 and extends into the housing 31 to connect with the electrical components contained in the housing 31.
  • the second adapter portion 322 is connected to the first adapter portion 321 and extends toward the through hole 22. It extends into the through hole 22 to connect with other components in the box 20, such as serving as the total positive output terminal and the total negative output terminal of multiple battery cells 10.
  • the adapter seat 32 includes a first adapter portion 321 and a second adapter portion 322.
  • the first adapter portion 321 extends into the shell 31 to connect with the electrical components in the shell 31, and the second adapter portion 322 extends into the through hole 22 to connect with the components in the box body 20, so as to facilitate the connection between the distribution box 30 and the box body 20.
  • the orthographic projection of the shell 31 on the box wall 21 covers the orthographic projection of the sealing member 40 on the box wall 21 .
  • the shell 31 includes a bottom wall, which is connected to the box wall 21, and the adapter 32 is connected to the bottom wall.
  • the wall portion has a rectangular structure with a predetermined length and width.
  • the seal 40 is a sealing ring.
  • the orthographic projection area of the bottom wall on the box wall 21 is larger than the orthographic projection area of the sealing ring on the box wall 21, and the orthographic projection of the bottom wall on the box wall 21 covers the orthographic projection of the sealing ring on the box wall 21.
  • the sealing member 40 is a sealing ring, which is disposed between the box wall 21 and the housing 31 and surrounds the through hole 22 , and is sleeved on the adapter 32 .
  • the seal 40 includes two sealing rings
  • the distribution box 30 includes a shell 31 and two adapters 32
  • the shell 31 is provided with two through holes 22
  • the sealing ring is arranged between the box wall 21 and the shell 31 and surrounds the corresponding through holes 22, and each sealing ring is sleeved on the corresponding adapter 32.
  • the sealing member 40 is a sealing ring, which is disposed between the box wall 21 and the shell 31 and surrounds the through hole 22 , and is disposed along the edge of the bottom wall.
  • the configuration is such that the sealing member 40 has an appropriate size, which not only achieves sealing between the adapter 32 and the box body 20 , but also reduces the manufacturing cost of the sealing member 40 .
  • a surface of the shell 31 facing the box wall 21 is provided with a protrusion 311 , and the protrusion 311 is used to limit the sealing member 40 .
  • the shell 31 includes a shell body and a protrusion 311 connected to the surface of the shell body and protruding toward the box wall 21.
  • the protrusion 311 is used to limit the seal 40 to reduce the movement of the seal 40 during the assembly process of the distribution box 30 and the box body 20, and during the transportation or use of the battery 100, thereby affecting the sealing of the adapter 32 and the box body 20.
  • a plurality of protrusions 311 are provided on the surface of the housing 31 facing the box wall 21 , and the plurality of protrusions 311 are arranged at intervals along the circumference of the sealing member 40 .
  • the protrusion 311 is used to define the sealing member 40 to improve the sealing between the adapter 32 and the box body 20.
  • the protrusion 311 is disposed around the sealing member 40 .
  • the protrusion 311 is arranged around the seal 40 to form an annular protrusion 311 that cooperates with the seal 40 , and the seal 40 is attached to the inner surface of the protrusion 311 facing the seal 40 .
  • the box wall 21 includes a heat exchange plate 211 and a protective plate 212.
  • the heat exchange plate 211 is arranged on the side of the protective plate 212 away from the distribution box 30 and is connected to the protective plate 212.
  • the heat exchange plate 211 is thermally connected to the battery cell 10 to regulate the temperature of the battery cell 10.
  • the through hole 22 includes a first through hole 221 and a second through hole 222.
  • the protective plate 212 is provided with a first through hole 221, and the heat exchange plate 211 is provided with a second through hole 222.
  • the first through hole 221 and the second through hole 222 are connected.
  • the box wall 21 includes a protective plate 212, which is disposed on the side of the heat exchange plate 211 facing away from the battery cell 10 and is connected to the heat exchange plate 211.
  • the protective plate 212 may cover a portion of the heat exchange plate 211 or may completely cover the protective plate 212.
  • the protective plate 212 may be used to connect to the power distribution box 30.
  • the protection plate 212 may be connected to the heat exchange plate 211 by bonding, fastener connection, welding, clamping or other methods.
  • the protection plate 212 may be a plate of uniform thickness or a plate of unequal thickness.
  • the protective plate 212 may be made of metal, plastic, metal-plastic composite material, or other materials.
  • the metal may be aluminum, aluminum alloy, stainless steel, nickel-plated steel, or other materials.
  • the box wall 21 includes a heat exchange plate 211, which is arranged on the side of the protective plate 212 facing away from the distribution box 30 and is connected to the protective plate 212.
  • the heat exchange plate 211 is provided with a flow channel for the flow of a heat exchange medium, or the protective plate 212 is provided with a heat exchange pipeline for guiding the flow of the heat exchange medium.
  • the battery cells 10 are connected to the heat exchange plate 211 to regulate the temperature of the battery cells 10.
  • the heat exchange medium flowing in the heat exchange plate 211 can quickly remove the heat generated by the battery cells 10 to achieve the purpose of temperature regulation.
  • the heat exchange plate 211 may be made of aluminum or an aluminum alloy.
  • Aluminum or an aluminum alloy has good heat conduction properties.
  • aluminum or an aluminum alloy is lightweight, which can reduce the overall weight of the housing 20 and increase the energy density of the battery 100.
  • the heat exchange medium is a fluid medium, such as water, ethanol, oil, and Freon.
  • the heat exchange medium can absorb the heat inside the box 20, or the flowing heat exchange medium can take the heat inside the battery box 20 to the external environment to achieve the purpose of regulating the temperature.
  • the heat exchange plate 211 and the protective plate 212 are integrated on the box body 20, which is not only conducive to the installation of the distribution box 30 and allows heat exchange with the battery cell 10, but also reduces the number of battery components and improves the integration of the battery 100.
  • the sealing member 40 is an elastic member.
  • the seal 40 is an elastic member.
  • the seal 40 may be a sealing ring, and its material may be, but is not limited to, rubber.
  • the seal 40 has a certain elasticity and can be elastically deformed under stress. During the assembly of the high-voltage box and the box wall 21, the seal 40 is squeezed and deformed under stress, thereby increasing the contact area between the seal 40 and the box wall 21.
  • the seal 40 is an elastic member.
  • the sealing area between the seal 40 and the box wall 21 is increased through the elastic deformation of the seal 40, thereby improving the sealing effect between the seal 40 and the box wall 21.
  • the distribution box 30 is protruding from the top of the box body 20 .
  • the power distribution box 30 is protruding from the top of the main body.
  • the power distribution box 30 is located on top of the housing 20 so that it is not exposed to the outside of the vehicle and is protected from external impact, thereby increasing the reliability of the power distribution box 30.
  • the battery 100 further includes a connector 50 , which is used to connect the housing 31 and the box wall 21 .
  • the edge of the housing 31 is provided with a mounting hole, and the connector 50 is fixed to the box wall 21.
  • the connector 50 can be inserted through the mounting hole to connect the housing 31 and the box wall 21, thereby connecting the box body 20 and the distribution box 30.
  • the connector 50 is a stud welded to the surface of the box wall 21 facing the distribution box 30. In this arrangement, the box body 20 and the distribution box 30 are connected via the connector 50 without significantly changing the structure of the box body 20 and the distribution box 30.
  • the housing 20 and the distribution box 30 are connected via a connector 50 to improve the assembly stability of the housing 20 and the distribution box 30 .
  • a plurality of battery cells 10 are electrically connected to form a total positive output electrode and a total negative output electrode, and the total positive output electrode and the total negative output electrode are connected to the adapter 32 .
  • the present application provides an electrical device, including the battery 100 described above, and the battery 100 is used to provide electrical energy.
  • the battery 100 includes a housing 20, a battery cell 10, a distribution box 30, a seal 40, a connector 50, a total positive output electrode, and a total negative output electrode.
  • the housing 20 includes a housing wall 21, which includes a heat exchange plate 211 and a protective plate 212.
  • the heat exchange plate 211 is disposed on a side of the protective plate 212 facing away from the distribution box 30 and is connected to the protective plate 212.
  • the battery cell 10 is thermally connected to the heat exchange plate 211.
  • the housing wall 21 is provided with a through hole 22, which includes a first through hole 221 and a second through hole 222.
  • the protective plate 212 is provided with a first through hole 221, and the heat exchange plate 211 is provided with a second through hole 222.
  • the first through hole 221 and the second through hole 222 are connected.
  • the battery cell 10 is accommodated in the housing 20.
  • the distribution box 30 includes a housing 31 and an adapter 32.
  • the housing 31 is arranged on the top of the outer side of the box wall 21 and is connected to the box wall 21.
  • the adapter 32 is integrally connected to the housing 31.
  • the orthographic projection of the housing 31 on the box wall 21 covers the orthographic projection of the seal 40 on the box wall 21.
  • the surface of the housing 31 facing the box wall 21 is provided with a protrusion 311, which is arranged around the seal 40.
  • the protrusion 311 is used to limit the seal 40.
  • the adapter 32 includes a first adapter portion 321 and a second adapter portion 322.
  • the first adapter portion 321 is connected to the housing 31 and extends into the housing 31.
  • the second adapter portion 322 is connected to the first adapter portion 321 and extends into the through hole 22.
  • the seal 40 is disposed between the box wall 21 and the housing 31 and surrounds the through hole 22.
  • the seal 40 is an elastic sealing ring.
  • the connector 50 is used to connect the housing 31 and the box wall 21.
  • the total positive output and the total negative output are disposed within the box body 20 and connected to the adapter 32.

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  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种电池（100）及用电装置，电池（100）包括箱体（20）、电池单体（10）、配电盒（30）和密封件（40）；箱体（20）包括箱壁（21），箱壁（21）设有通孔（22）；电池单体（10）容纳于箱体（20）内；配电盒（30）包括壳体（31）和转接座（32），壳体（31）设置于箱壁（21）的外侧且连接于箱壁（21），转接座（32）连接于壳体（31），转接座（32）的至少部分容纳于通孔（22）；密封件（40）设置于箱壁（21）和壳体（31）之间并环绕通孔（22）。提供的电池（100），转接座（32）直接连接在壳体（31）上，将带有转接座（32）的配电盒（30）与箱体（20）连接，既满足了转接座（32）和配电盒（30）的连接强度，降低污染物等经由转接座（32）进入配电盒（30）的概率，提高二者的密封性，又简化了配电盒（30）与箱体（20）装配程度，从而提高了电池（100）的装配效率。

Description

电池及用电装置
相关申请的交叉引用
本申请要求享有于2024年04月02日提交的名称为“电池及用电装置”的中国专利申请202420670107.6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
申请涉及电池生产技术领域，特别是涉及电池及用电装置。
背景技术
电池广泛用于电子设备，例如手机、笔记本电脑、电瓶车、电动汽车、电动飞机、电动轮船、电动玩具汽车、电动玩具轮船、电动玩具飞机和电动工具等等。
在电池技术的发展中，如何提高电池的可靠性，是电池技术中一个亟待解决的技术问题。
发明内容
本申请提供一种电池及用电装置，旨在一定程度上能够提高电池的可靠性。
第一方面，本申请提出了一种电池，电池包括箱体、电池单体、配电盒和密封件；箱体包括箱壁，箱壁设有通孔；电池单体容纳于箱体内；配电盒包括壳体和转接座，壳体设置于箱壁的外侧且连接于箱壁，转接座 连接于壳体，转接座的至少部分容纳于通孔；密封件设置于箱壁和壳体之间并环绕通孔。
本申请提供的电池，电池包括箱体、电池单体、配电盒和密封件。壳体设置于箱壁的外侧且连接于箱壁，也即配电盒设置于箱体的外侧，配电盒与箱体独立设置，电池单体热失效所泄露的高温气体不会直接进入配电盒内，降低对配电盒造成的热损伤。转接座直接连接在壳体上，将带有转接座的配电盒与箱体连接，既满足了转接座和配电盒的连接强度，降低污染物等经由转接座进入配电盒的概率，提高二者的密封性，又简化了配电盒与箱体装配程度，从而提高了电池的装配效率。密封件设置于箱壁和壳体之间并环绕通孔，以实现转接座与箱体的密封，降低外部污染物通过通孔进箱体内的风险，从而提高电池的可靠性。
根据本申请的一个实施例，壳体和转接座一体连接。
在这些可选的实施例中，壳体和转接座为一体设置，使得换壳体和转接座具有较高的连接强度，以及壳体和转接座具有较高的密封性，二者在受到外力时不易发生脱落，并提高电池的可靠性。
根据本申请的一个实施例，转接座包括第一转接部和第二转接部，第一转接部连接于壳体并伸入壳体内，第二转接部连接于第一转接部并伸入通孔内。
在这些可选的实施例中，转接座包括第一转接部和第二转接部，第一转接部伸入壳体内与壳体内的电器件进行连接，第二转接部伸入通孔内与箱体内的构件进行连接，以便于实现配电盒与箱体的转接。
根据本申请的一个实施例，壳体在箱壁的正投影覆盖密封件在箱壁的正投影。
在这些可选的实施例中，如此设置，使得密封件具有适宜的尺寸， 不仅实现对转接座与箱体的密封，还能够降低密封件的制造成本。
根据本申请的一个实施例，壳体面向箱壁的表面设有凸起，凸起用于对密封件进行限位。
在这些可选的实施例中，凸起用于限定密封件，以提高转接座与箱体的密封性。
根据本申请的一个实施例，凸起环绕密封件设置。
根据本申请的一个实施例，箱壁包括换热板和防护板，换热板设置于防护板背离配电盒的一侧并连接于防护板，换热板与电池单体导热连接以调节电池单体的温度，通孔包括第一通孔和第二通孔，防护板设有第一通孔，换热板设有第二通孔，第一通孔和第二通孔连通。
在这些可选的实施例中，将换热板和防护板集成在箱体上，不仅有利于配电盒的安装，还可以与电池单体进行热交换，并减少电池的零部件的数量，提高电池的集成度。
根据本申请的一个实施例，密封件为弹性件。
在这些可选的实施例中，密封件为弹性件，在高压盒与箱壁装配时，以便于通过密封件的弹性变形而增加密封件与箱壁之间的密封面积，从而提高密封件与箱壁的密封效果。
根据本申请的一个实施例，配电盒突出设置于箱体的顶部。
在这些可选的实施例中，如此设置，能够增加配电盒的可靠性。
根据本申请的一个实施例，电池还包括连接件，连接件用于连接壳体和箱壁。
在这些可选的实施例中，箱体和配电盒通过连接件进行连接，以提高箱体和配电盒装配的稳定性。
根据本申请的一个实施例，多个电池单体电连接并形成总正输出极和总负输出极，总正输出极和总负输出极连接于转接座。
第二方面，本申请提供一种用电装置，包括根据前述的电池，电池用于提供电能。
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
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效果。
图1是本申请一实施例提供的车辆的结构示意图；
图2是本申请一实施例提供的电池的结构示意图；
图3是本申请一实施例提供的电池横截面的结构示意图；
图4为图3所示的一些实施例提供的电池在a-a处的截面结构示意图；
图5为图4所示的一些实施例的电池的局部放大结构示意图。
附图未必按照实际的比例绘制。
附图标记说明：
1000、车辆；100、电池；200、控制器；300、马达；10、电池单体；20、箱体；21、箱壁；211、换热板；212、防护板；22、通孔；221、第一通孔；222、第二通孔；30、配电盒；31、壳体；311、凸起； 32、转接座；321、第一转接部；322、第二转接部；40、密封件；50、连接件。
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)。
本申请中，电池单体可以包括锂离子二次电池单体、锂离子一次电池单体、锂硫电池单体、钠锂离子电池单体、钠离子电池单体或镁离子电池单体等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
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降低液体或其他异物影响电池单体的充电或放电。
电池单体包括电极组件和电解质，电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性 物质层的集流体，未涂敷正极活性物质层的集流体层叠后作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体层叠后作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。隔离膜的材质可以为PP(polypropylene，聚丙烯)或PE(polyethylene，聚乙烯)等。此外，电极组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。
在相关技术中，电池内的电池单体及配电盒处于箱体内的同一空间，电池单体热失效时会释放大量的热量，易导致配电盒受热而损坏，因此，需要将配电盒独立于箱体外，以减少对配电盒的损坏，独立于箱体外的配电盒需要采用转换座实现配电盒与箱体的转接，但是外部污染物会通过转换座进入到配电盒和箱体内，例如液体等，导致短路，从而降低了电池的可靠性。上述的陈述仅用于提供与本申请有关的背景技术信息，而不必然地构成现有技术。
鉴于以上问题，发明人经过深入研究，提出了一种电池，电池包括箱体、电池单体、配电盒和密封件。转接座直接连接在壳体上，将带有转接座的配电盒与箱体连接，既满足了转接座和配电盒的连接强度，降低污染物等经由转接座进入配电盒的概率，提高二者的密封性，又简化了配电盒与箱体装配程度，从而提高了电池的装配效率。密封件设置于箱壁和壳体之间并环绕通孔，以实现转接座与箱体的密封，降低外部污染物通过通孔进箱体内的风险，从而提高电池的可靠性。
电池可以应用于车辆、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。车辆可以是燃油汽车、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；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极耳生产设备不做特殊限制。
在一些实施例中，电池可以为储能装置。储能装置包括储能集装箱、储能电柜等。
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为例进行说明。
参见图1所示，本申请的一个实施例提供一种车辆1000。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。在本申请一实施例中，车辆1000可以包括马达300、控制器200以及电池100。控制器200用来控制电池100为马达300供电。马达300通过传动机构与车轮连接，从而驱动车辆1000行进。电池100可以作为车辆1000的驱动电源，替代或部分地替代燃油或天然气为车辆1000提供驱动动力。在一个示例中，在车辆1000的底部或车头或车尾可以设置电池100。电池100可以用于为车辆1000供电。在一个示例中，电池100可以作为车辆1000的操作电源，用于车辆1000的电路系统。示例性地，电池100可以用于车辆1000的启动、导航和运行时的工作用电需求。
参阅图2和图3，图2是本申请一实施例提供的电池的结构示意 图；图3是本申请一实施例提供的电池横截面的结构示意图。
如图2和图3所示，本申请提出了一种电池100，电池100包括箱体20、电池单体10、配电盒30和密封件40。箱体20包括箱壁21，箱壁21设有通孔22。电池单体10容纳于箱体20内。配电盒30包括壳体31和转接座32，壳体31设置于箱壁21的外侧且连接于箱壁21，转接座32连接于壳体31，转接座32的至少部分容纳于通孔22。密封件40设置于箱壁21和壳体31之间并环绕通孔22。
箱体20用于容纳电池单体10，箱体20可以一定程度上避免液体或其他异物影响电池单体10的充电或放电。
示例性地，箱体20可以包括第一箱体和第二箱体，第一箱体和第二箱体相互盖合，第一箱体和第二箱体共同限定出用于容纳电池单体10的容纳空间。第一箱体可以为一端开口的空心结构，第二箱体可以为板状结构，第二箱体盖合于第一箱体的开口侧，以使第一箱体和第二箱体共同限定出容纳空间；第一箱体和第二箱体也可以是均为一侧开口的空心结构，第一箱体的开口侧盖合于第二箱体的开口侧。当然，第一箱体和第二箱体形成的箱体20可以是多种形状，比如，圆柱体、长方体等。第一箱体和第二箱体可以是多种形状，比如，圆柱体、长方体等。为提高第一箱体与第二箱体连接后的密封性，第一箱体与第二箱体之间也可以设置密封构件，比如，密封胶、密封圈等。假设第一箱体盖合于第二箱体的顶部，第一箱体亦可称之为上箱盖，第二箱体亦可称之为下箱体。
在本申请的实施例中，箱体20包括箱壁21，箱壁21可以为箱体20的顶壁、侧壁或者底壁中的一者。箱壁21设有通孔22，可以使得箱体20的外置件伸入通孔22内，或者，可以使得箱体20的外置件通过通孔22伸入到箱体20内。
配电盒30包括壳体31和转接座32，壳体31内可容纳电器件，电器件电连接于电池单体10。配电盒30对电池100进行控制。作为示例，配电盒30在电池100的充电和放电过程中，起到保护电池100和动力传输分配的作用。壳体31设置于箱壁21的外侧且连接于箱壁21，在电池单体10出现热失控时，箱壁21可以保护配电盒30，降低电池单体10释放的高温物质损伤电器件的风险。将配电盒30设置在箱体20的外部，还可以提高电池的内部空间的利用率。
通常情况下，电池100的电压较高，用电装置的电器(例如电机控制器、空调系统及充电系统)若直接与电池100相连则会造成电池线束杂乱，故电池100需要增加配电盒30对电池100进行高压分配。配电盒30采用集中配电方案，结构设计紧凑，接线布局方便，检修方便快捷。
在一些实施例中，电器件包括熔断器、继电器、电阻、电流传感器及电池管理组件中的一种或多种，以便于对电池100进行控制。
在一些实施例中，壳体31与箱壁21连接，连接方式可采用焊接、螺栓连接、铰接、卡接、胶接等等。
在本申请的实施例中，配电盒30包括壳体31和转接座32，转接座32连接于壳体31，转接座32的至少部分容纳于通孔22。由于配电盒30设置于箱体20的外部，因此需要通过转接座32实现配电盒30与箱体20的转接。转接座32至少部分外凸出于箱体20并容纳于通孔22内，以实现配电盒30与箱体20的转接。
示例性地，转接座32和壳体31为一体成型结构。
示例性地，转接座32和壳体31为分体结构。
密封件40用于密封箱壁21和壳体31，密封件40设置于箱壁21和壳体31之间，并环绕通孔22，以便于在高压盒与箱壁21装配时，密封件 40与箱壁21接触并抵接，从而在高压盒的壳体31与箱壁21之间形成密封连接。降低外部污染物通过通孔22进箱体20内。
具体地，密封件40沿高压盒与箱体20的布设方向设有相对的第一表面和第二表面，第一表面抵接于壳体31，第二表面抵接于箱壁21。
在本申请的实施例中，密封件40可采用密封圈、密封胶、中空结构的密封块或者密封板等。
本申请提供的电池100，电池100包括箱体20、电池单体10、配电盒30和密封件40。壳体31设置于箱壁21的外侧且连接于箱壁21，也即配电盒30设置于箱体20的外侧，配电盒30与箱体20独立设置，电池单体10热失效所泄露的高温气体不会直接进入配电盒30内，降低对配电盒30造成的热损伤。转接座32直接连接在壳体31上，将带有转接座32的配电盒30与箱体20连接，既满足了转接座32和配电盒30的连接强度，降低污染物等经由转接座32进入配电盒30的概率，提高二者的密封性，又简化了配电盒30与箱体20装配程度，从而提高了电池100的装配效率。密封件40设置于箱壁21和壳体31之间并环绕通孔22，以实现转接座32与箱体20的密封，降低外部污染物通过通孔22进箱体20内的风险，从而提高电池100的可靠性。
根据本申请的一个实施例，壳体31和转接座32一体连接。
具体地，配电盒30包括一体形成的壳体31和转接座32，本申请实施例不限制壳体31和转接座32的成型方式。可选地，壳体31和转接座32为一体冲压成形。可替代地，壳体31和转接座32为真空压铸成形。
在这些可选的实施例中，壳体31和转接座32为一体设置，使得换壳体31和转接座32具有较高的连接强度，以及壳体31和转接座32具有较高的密封性，二者在受到外力时不易发生脱落，并提高电池100的可靠 性。
结合参阅图4和图5，图4为图3所示的一些实施例提供的电池在a-a处的截面结构示意图；图5为图4所示的一些实施例的电池的局部放大结构示意图。
如图3至图5所示，根据本申请的一个实施例，转接座32包括第一转接部321和第二转接部322，第一转接部321连接于壳体31并伸入壳体31内，第二转接部322连接于第一转接部321并伸入通孔22内。
在本申请的实施例中，转接座32包括第一转接部321和第二转接部322，第一转接部321与壳体31连接，并伸入到壳体31内，可与壳体31内容纳的电器件进行连接。第二转接部322连接第一转接部321并向通孔22方向延伸，且伸入通孔22内与箱体20内的其他部件进行连接，例如作为多个电池单体10的总正输出极和总负输出极。
在这些可选的实施例中，转接座32包括第一转接部321和第二转接部322，第一转接部321伸入壳体31内与壳体31内的电器件进行连接，第二转接部322伸入通孔22内与箱体20内的构件进行连接，以便于实现配电盒30与箱体20的转接。
根据本申请的一个实施例，壳体31在箱壁21的正投影覆盖密封件40在箱壁21的正投影。
具体地，壳体31包括底壁，底壁连接于箱壁21，转接座32连接于底壁，壁部呈矩形结构，具有预定的长度和宽度，密封件40为密封圈，底壁在箱壁21的正投影面积大于密封圈在箱壁21的正投影面积，且底壁在箱壁21的正投影覆盖密封圈在箱壁21的正投影。
示例性地，密封件40为密封圈，密封圈设置于箱壁21和壳体31之间并环绕通孔22，且密封圈套设于转接座32。
示例性地，密封件40包括两个密封圈，配电盒30包括壳体31和两个转接座32，壳体31设有两个通孔22，密封圈设置于箱壁21和壳体31之间并环绕与其对应的通孔22，且各密封圈套设于与其对应的转接座32。
示例性地，密封件40为密封圈，密封圈设置于箱壁21和壳体31之间并环绕通孔22，且密封圈沿底壁的边缘设置。
在这些可选的实施例中，如此设置，使得密封件40具有适宜的尺寸，不仅实现对转接座32与箱体20的密封，还能够降低密封件40的制造成本。
如图4和图5所示，根据本申请的一个实施例，壳体31面向箱壁21的表面设有凸起311，凸起311用于对密封件40进行限位。
在本申请的实施例中，壳体31包括壳本体和连接于壳本体的表面朝向箱壁21凸出设置的凸起311，凸起311用于对密封件40进行限位，以降低配电盒30和箱体20装配过程中，以及电池100转运或者使用过程中，密封件40发生窜动，影响转接座32与箱体20的密封性。
具体地，壳体31面向箱壁21的表面设有多个凸起311，多个凸起311沿密封件40的周侧间隔设置。
在这些可选的实施例中，凸起311用于限定密封件40，以提高转接座32与箱体20的密封性。
根据本申请的一个实施例，凸起311环绕密封件40设置。
在本申请的实施例中，凸起311环绕密封件40设置，以形成环形凸起311，与密封件40配合，密封件40贴合于凸起311面向密封件40的内表面。
可选地，凸起311环绕密封件40一圈设置。
如图4和图5所示，根据本申请的一个实施例，箱壁21包括换热板211和防护板212，换热板211设置于防护板212背离配电盒30的一侧并连接于防护板212，换热板211与电池单体10导热连接以调节电池单体10的温度，通孔22包括第一通孔221和第二通孔222，防护板212设有第一通孔221，换热板211设有第二通孔222，第一通孔221和第二通孔222连通。
在本申请的实施例中，箱壁21包括防护板212，防护板212设置于换热板211背离电池单体10的一侧，并连接于换热板211，防护板212可以覆盖换热板211的一部分，也可以完全覆盖防护板212。防护板212可用于与配电盒30连接。
在一些实施例中，防护板212可以通过粘接、紧固件连接、焊接、卡接或其它方式连接于换热板211。
在一些实施例中，防护板212可以是等厚度的板，也可以是不等厚度的板。
在一些实施例中，防护板212材料可以为金属、塑料、金属塑料复合材料或其它材料。可选地，金属可为铝、铝合金、不锈钢、镀镍钢或其它。
在本申请的实施例中，箱壁21包括换热板211，换热板211设置于防护板212背离配电盒30的一侧并连接于防护板212，换热板211设有供换热介质流动的流道，或者，防护板212设有用于引导换热介质流动换热管路。电池单体10与换热板211连接，以调节电池单体10的温度。在换热板211内流动的换热介质，可快速带走电池单体10所产生的热量，以达到调节温度的目的。
在一些实施例中，换热板211材料可以为铝或者铝合金，换热板211为铝或者铝合金。铝或者铝合金的热传导效果较好。而且，铝或者铝合金具有较小的重量，可以减小箱体20整体的重量，提高电池100的能量密度。
在一些实施例中，换热介质为具有流动性的介质，例如：包括水、乙醇、油和氟利昂，换热介质可吸收箱体20内部的热量，或者流动的换热介质带走电池箱体20内的热量至外环境，以达到调节温度的目的。
在这些可选的实施例中，将换热板211和防护板212集成在箱体20上，不仅有利于配电盒30的安装，可以与电池单体10进行热交换，还可以减少电池的零部件的数量，提高电池100的集成度。
根据本申请的一个实施例，密封件40为弹性件。
在本申请的实施例中，密封件40为弹性件，可选地，密封件40可以为密封圈，其材质可以为但不限于橡胶。密封件40具有一定的弹性，其可以受力产生弹性变形。高压盒与箱壁21装配过程中，密封件40被挤压，密封件40受力变形，能够增加密封件40与箱壁21之间的接触面积。
在这些可选的实施例中，密封件40为弹性件，在高压盒与箱壁21装配时，以便于通过密封件40的弹性变形而增加密封件40与箱壁21之间的密封面积，从而提高密封件40与箱壁21的密封效果。
根据本申请的一个实施例，配电盒30突出设置于箱体20的顶部。
在本申请的实施例中，配电盒30突出设置于主体的顶部。当电池100的箱体20用作车辆的底盘时，由于配电盒30位于箱体20的顶部，因此不会暴露在车辆之外，还可以免受外部撞击，增加配电盒30的可靠性。
如图2和图4所示，根据本申请的一个实施例，电池100还包括连接件50，连接件50用于连接壳体31和箱壁21。
具体地，壳体31的边缘设有安装孔，连接件50固定于箱壁21，连接件50可穿过安装孔以将壳体31和箱壁21连接，从而将箱体20和配电盒30连接。可选地，连接件50为螺柱，螺柱焊接于箱壁21面向配电盒30一侧的表面。如此设置，通过连接件50将箱体20和配电盒30连接，且箱体20和配电盒30自身结构未发生较大的变化。
在这些可选的实施例中，箱体20和配电盒30通过连接件50进行连接，以提高箱体20和配电盒30装配的稳定性。
根据本申请的一个实施例，多个电池单体10电连接并形成总正输出极和总负输出极，总正输出极和总负输出极连接于转接座32。
本申请提供一种用电装置，包括根据前述的电池100，电池100用于提供电能。
根据本申请的一些实施例，参见图2至图5所示，电池100包括箱体20、电池单体10、配电盒30和密封件40、连接件50、总正输出极和总负输出极。箱体20包括箱壁21，箱壁21包括换热板211和防护板212，换热板211设置于防护板212背离配电盒30的一侧并连接于防护板212，电池单体10与换热板211导热连接。箱壁21设有通孔22，通孔22包括第一通孔221和第二通孔222，防护板212设有第一通孔221，换热板211设有第二通孔222，第一通孔221和第二通孔222连通。电池单体10容纳于箱体20内。配电盒30包括壳体31和转接座32，壳体31设置于箱壁21的外侧的顶部，且连接于箱壁21，转接座32与壳体31一体连接。壳体31在箱壁21的正投影覆盖密封件40在箱壁21的正投影。壳体31面向箱壁21的表面设有凸起311，凸起311环绕密封件40一圈设置， 凸起311用于对密封件40进行限位。转接座32包括第一转接部321和第二转接部322，第一转接部321连接于壳体31并伸入壳体31内，第二转接部322连接于第一转接部321并伸入通孔22内。密封件40设置于箱壁21和壳体31之间并环绕通孔22，密封件40为弹性密封圈。连接件50用于连接壳体31和箱壁21。总正输出极和总负输出极设置于箱体20内，总正输出极和总负输出极连接于转接座32。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件，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 (12)

  1. 一种电池，包括：
    箱体，包括箱壁，所述箱壁设有通孔；
    电池单体，容纳于所述箱体内；
    配电盒，包括壳体和转接座，所述壳体设置于所述箱壁的外侧且连接于所述箱壁，所述转接座连接于所述壳体，所述转接座的至少部分容纳于所述通孔；
    密封件，设置于所述箱壁和所述壳体之间并环绕所述通孔。
  2. 根据权利要求1所述的电池，其中，
    所述壳体和所述转接座一体连接。
  3. 根据权利要求1所述的电池，其中，
    所述转接座包括第一转接部和第二转接部，所述第一转接部连接于所述壳体并伸入所述壳体内，所述第二转接部连接于所述第一转接部并伸入所述通孔内。
  4. 根据权利要求1所述的电池，其中，
    所述壳体在所述箱壁的正投影覆盖所述密封件在所述箱壁的正投影。
  5. 根据权利要求1所述的电池，其中，
    所述壳体面向所述箱壁的表面设有凸起，所述凸起用于对所述密封件进行限位。
  6. 根据权利要求5所述的电池，其中，
    所述凸起环绕所述密封件设置。
  7. 根据权利要求1所述的电池，其中，
    所述箱壁包括换热板和防护板，所述换热板设置于所述防护板背离所述配电盒的一侧并连接于所述防护板，所述换热板与所述电池单体导热连 接以调节所述电池单体的温度；
    所述通孔包括第一通孔和第二通孔，所述防护板设有所述第一通孔，所述换热板设有所述第二通孔，所述第一通孔和所述第二通孔连通。
  8. 根据权利要求1所述的电池，其中，
    所述密封件为弹性件。
  9. 根据权利要求1所述的电池，其中，
    所述配电盒突出设置于所述箱体的顶部。
  10. 根据权利要求1所述的电池，其中，
    所述电池还包括连接件，所述连接件用于连接所述壳体和所述箱壁。
  11. 根据权利要求1所述的电池，其中，
    多个所述电池单体电连接并形成总正输出极和总负输出极，所述总正输出极和所述总负输出极连接于所述转接座。
  12. 一种用电装置，包括权利要求1至11任一项所述的电池，所述电池用于提供电能。
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