WO2024156154A1 - 电池以及用电装置 - Google Patents

电池以及用电装置 Download PDF

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Publication number
WO2024156154A1
WO2024156154A1 PCT/CN2023/089325 CN2023089325W WO2024156154A1 WO 2024156154 A1 WO2024156154 A1 WO 2024156154A1 CN 2023089325 W CN2023089325 W CN 2023089325W WO 2024156154 A1 WO2024156154 A1 WO 2024156154A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
accommodating cavity
conductive
conductive terminal
accommodating chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/089325
Other languages
English (en)
French (fr)
Inventor
张文辉
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
Priority to EP23918156.3A priority Critical patent/EP4546549A4/en
Publication of WO2024156154A1 publication Critical patent/WO2024156154A1/zh
Priority to US19/058,362 priority patent/US20250192375A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249Mountings; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271Lids or covers for the racks or secondary casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • H01M50/584Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64Constructional details of batteries specially adapted for electric vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28End pieces consisting of a ferrule or sleeve
    • H01R11/281End pieces consisting of a ferrule or sleeve for connections to batteries
    • H01R11/288Interconnections between batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • the present application relates to the technical field of battery manufacturing, and in particular to a battery and an electrical device.
  • Batteries are widely used in electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc.
  • Battery cells can include nickel-cadmium battery cells, nickel-hydrogen battery cells, lithium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.
  • the present application provides a battery and an electrical device, which can improve the reliability of the battery.
  • the battery provided in the embodiment of the present application comprises a box, a battery cell, an electrical component and at least one adapter member;
  • the box has a first accommodating chamber, a second accommodating chamber and a separator, the separator is used to isolate the first accommodating chamber and the second accommodating chamber;
  • the battery cell is accommodated in the first accommodating chamber
  • the electrical component is accommodated in the second accommodating chamber;
  • at least one transition member is disposed on the partition and is sealed and connected to the partition, and at least one transition member is used to electrically connect the electrical component and the battery cell.
  • the battery provided in the embodiment of the present application is provided with a first accommodating chamber, a second accommodating chamber and a partition in a box body, and the first accommodating chamber and the second accommodating chamber are isolated from each other by the partition, and a transition member is provided on the partition, and the electrical connection between the battery cell in the first accommodating chamber and the electrical component in the second accommodating chamber is achieved by the transition member.
  • the transition member and the partition are sealed and connected to achieve mutual isolation between the first accommodating chamber and the second accommodating chamber, so as to reduce the possibility of thermal runaway of one of the electrical component and the battery cell spreading to the other, which is beneficial to improving the reliability of the battery.
  • the separator has a through hole connecting the first accommodating cavity and the second accommodating cavity, and at least a portion of the transition member is passed through the through hole;
  • the battery also includes a seal, which is arranged around the through hole and abuts between the transition member and the separator.
  • the separator is provided with a through hole to facilitate the arrangement of a transfer component on the separator, and the battery is provided with a sealing member, and the through hole is sealed by the sealing member to achieve mutual isolation between the first accommodating chamber and the second accommodating chamber.
  • the connection between the transfer component and the separator is facilitated, and it is beneficial to improve the connection strength between the transfer component and the separator.
  • the transfer component includes an insulating shell and a conductive terminal.
  • the insulating shell has a receiving cavity with first openings at both ends, and the conductive terminal is received in the receiving cavity.
  • the conductive terminal is used to electrically connect the battery cell and the electrical component, and the sealing member is abutted between the insulating shell and the separator. This helps to reduce the risk of the conductive terminal contacting other components with conductive functions and causing internal short circuits in the battery, and helps to further improve the reliability of the battery.
  • the insulating housing includes a housing body and a flange portion disposed on the circumference of the housing body, the housing body has a receiving cavity, the flange portion has a groove, at least a portion of the seal is received in the groove, and abuts between the flange portion and the partition.
  • the flange portion is provided with a groove, and at least a portion of the seal is provided to be received in the groove, and the groove can be used to position the seal, which is conducive to improving the sealing reliability of the seal.
  • the battery further includes a busbar and a conductive member, wherein the busbar is disposed on the first
  • the first receiving cavity is provided with a current collector and electrically connects the battery cell and the conductive terminal
  • the conductive member is provided in the second receiving cavity and electrically connects the electrical component and the conductive terminal. It is convenient to reasonably set the position of the battery cell in the first receiving cavity and the position of the electrical component in the second receiving cavity according to actual needs, and realize the electrical connection between the battery cell and the electrical component through the current collector and the conductive member respectively. In this way, it is conducive to improving the flexibility of the arrangement position of the battery cell and the electrical component.
  • the end of the conductive terminal facing the first accommodating cavity has a first mounting hole, and the first mounting hole is used for fastening the busbar and the conductive terminal; and/or, the end of the conductive terminal facing the second accommodating cavity has a second mounting hole, and the second mounting hole is used for fastening the conductive member and the conductive terminal.
  • Such a configuration facilitates conductive connection between the conductive member and the conductive terminal or between the busbar and the conductive terminal by means of threaded connection, pin connection, riveting, etc., and has a high connection strength, which is conducive to improving the connection reliability between the conductive member and the conductive terminal or between the busbar and the conductive terminal.
  • the transfer member includes a plurality of conductive terminals, which are insulated from each other. This arrangement is conducive to improving the compactness of the transfer member and reducing the space occupied by the transfer member while achieving electrical connection between the conductive terminals and the electrical components.
  • the battery includes a plurality of transition members, at least two of which are arranged along a first direction, and the insulating housing has a shielding portion on at least one side along the first direction, and the shielding portion is arranged to extend outwardly along the axial direction of the through hole by a preset distance.
  • the shielding portion can be used to organize the conductive terminal to be connected to other conductive members inside the battery, thereby reducing the risk of accidental contact of the conductive terminal, thereby reducing the risk of internal short circuit of the battery, and further improving the reliability of the battery.
  • the transfer component further includes a cover body, which covers the end of the insulating shell facing the first accommodating cavity, and/or the cover body covers the end of the insulating shell facing the second accommodating cavity.
  • an embodiment of the present application provides an electrical device, including a battery as in the embodiment of the first aspect, and the battery is used to provide electrical energy.
  • the electric device provided in the embodiment of the present application has the same technical effect as the battery provided in the embodiment of the present application, and thus will not be described in detail here.
  • FIG1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application.
  • FIG2 is an exploded schematic diagram of a battery provided by an embodiment of the present application with some structures omitted;
  • FIG3 is a schematic diagram of the structure of a battery module in a battery provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of an explosion of a battery cell in a battery provided in some embodiments of the present application.
  • FIG5 is a schematic cross-sectional view of a battery provided in an embodiment of the present application.
  • FIG6 is another schematic cross-sectional view of a battery provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of an exploded structure of a transfer component and a current collector in a battery provided in an embodiment of the present application;
  • FIG8 is a schematic structural diagram of a switching component in a battery provided in an embodiment of the present application.
  • FIG9 is a schematic structural diagram of another adapter component in a battery provided in an embodiment of the present application.
  • FIG10 is a front view of a transfer component in a battery provided in an embodiment of the present application.
  • Fig. 11 is a cross-sectional structural schematic diagram along A-A of Fig. 10.
  • the drawings are not drawn according to the actual scale.
  • 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 the present application do not limit this.
  • Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present 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 the present application do not limit this.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in the present application may include a battery module or a battery pack.
  • the battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
  • a battery cell includes an electrode assembly and an electrolyte, and the electrode assembly includes 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 includes a positive current collector and a positive active material layer, and the positive active material layer is coated on the surface of the positive current collector;
  • the positive current collector includes a positive current collector and a positive convex portion protruding from the positive current collector, the positive current collector is coated with the positive active material layer, at least part of the positive convex portion is not coated with the positive active material layer, and the positive convex portion serves as a positive electrode ear.
  • the material of the positive current collector can be aluminum, the positive active material layer includes a positive active material, and the positive 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, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector includes a negative electrode current collector and a negative electrode protrusion protruding from the negative electrode current collector, the negative electrode current collector is coated with a negative electrode active material layer, at least part of the negative electrode protrusion is not coated with the negative electrode active material layer, and the negative electrode protrusion serves as a negative electrode tab.
  • the material of the negative electrode current collector may be copper, and the negative electrode active material layer includes a negative electrode active material, and the negative electrode active material may be carbon or silicon, etc.
  • the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.
  • the material of the separator may be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.
  • the electrode assembly may be a winding structure or a laminated structure, and the embodiments of the present application are not limited thereto.
  • the battery has a distribution box, and the distribution box has electrical components.
  • the electrical components usually include circuit boards, relays, fuses, current sensors, pre-charge resistors and other components.
  • the battery is connected to the electrical device through the distribution box to reasonably distribute the battery's electrical energy to the electrical devices such as the motor controller, car heater, air-conditioning compressor and other electrical devices.
  • the distribution box of the battery is prone to thermal runaway during operation
  • the inventors have improved the battery structure.
  • the technical solutions described in the embodiments of the present application are applicable to batteries and electrical devices using batteries.
  • the battery provided according to the embodiment of the present application includes a box body, a battery cell, an electrical component and at least one transition member.
  • the box body has a first accommodating chamber, a second accommodating chamber and a partition, and the partition is used to isolate the first accommodating chamber and the second accommodating chamber.
  • the battery cell is accommodated in the first accommodating chamber, and the electrical component is accommodated in the second accommodating chamber.
  • the transition member is arranged on the partition and is sealed and connected to the partition, and at least one transition member is used to electrically connect the electrical component and the battery cell.
  • the battery provided in the embodiment of the present application is isolated from each other by providing a first accommodating chamber for accommodating a battery cell and a second accommodating chamber for accommodating an electrical component, and realizing electrical connection between the battery cell and the electrical component through a transition member.
  • the battery cell and the electrical component can maintain an electrically connected state to realize the normal operation of the battery, and can also maintain a state in which the battery cell and the electrical component are isolated from each other.
  • the risk of thermal runaway spreading to the second accommodating chamber can be reduced, thereby reducing the risk of thermal runaway of the electrical component in the second accommodating chamber. This is conducive to improving the reliability of the battery.
  • Electrical devices can be 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 electric devices.
  • a battery 10 is provided inside the vehicle 1.
  • the battery 10 may be provided at the bottom, head, or tail of the vehicle 1.
  • the battery 10 may be used to power the vehicle 1, for example, the battery 10 may be used as an operating power source for the vehicle 1.
  • the vehicle 1 may further include a controller 1b and a motor 1a.
  • the controller 1b is used to control the battery 10 to supply power to the motor 1a, for example, to meet the power requirements of the vehicle 1 during starting, navigation and driving.
  • the battery 10 can not only serve as an operating power source for the vehicle 1, but also serve as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.
  • the battery 10 includes a battery cell (not shown in FIG2 ).
  • the battery 10 may also include a box 11 for accommodating the battery cell.
  • the box body is used to accommodate battery cells, and the box body 11 can be in various structural forms.
  • the box body may include a first box body portion 111 and a second box body portion 112.
  • the first box body portion 1111 and the second box body portion 112 cover each other.
  • the first box body portion 1111 and the second box body portion 112 jointly define a storage space for accommodating battery cells.
  • the second box body portion 112 can be a hollow structure with one end open, the first box body portion 111 is a plate-like structure, and the first box body portion 111 covers the open side of the second box body portion 112 to form a box body with a storage space;
  • the first box body portion 111 and the second box body portion 112 can also be hollow structures with one side open.
  • the open side of the first box body portion 111 covers the open side of the second box body portion 112 to form a box body 11 with a storage space.
  • the first box body portion 111 and the second box body portion 112 can be in various shapes, such as a cylinder, a cuboid, etc.
  • a sealing member such as a sealant, a sealing Circle, etc.
  • the first box body portion 111 covers the second box body portion 112
  • the first box body portion 111 can also be referred to as an upper box cover
  • the second box body portion 112 can also be referred to as a lower box body.
  • the battery 10 there can be one or more battery cells. If there are more than one battery cell, the battery cells can be connected in series, in parallel, or in a mixed connection.
  • a mixed connection means that the battery cells are connected in series and in parallel.
  • the battery cells can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the battery cells can be accommodated in the box 11.
  • the battery module 20 can be formed by connecting the battery cells in series, in parallel, or in a mixed connection. The battery modules 20 are then connected in series, in parallel, or in a mixed connection to form a whole, and then accommodated in the box.
  • FIG3 is a schematic diagram of the structure of the battery module 20 shown in FIG2 .
  • the battery module 20 there are multiple battery cells 30 .
  • the multiple battery cells 30 are first connected in series or in parallel or in mixed series to form the battery module 20 .
  • the multiple battery modules 20 are then connected in series or in parallel or in mixed series to form a whole, and are accommodated in the box 11 .
  • the multiple battery cells 30 in the battery module 20 may be electrically connected via a busbar component to achieve parallel connection, series connection, or mixed connection of the multiple battery cells 30 in the battery module 20 .
  • Fig. 4 is an exploded schematic diagram of the battery cell 30 shown in Fig. 3.
  • the battery cell 30 provided in the embodiment of the present application includes an electrode assembly 32 and a housing 31, wherein the housing 31 has a receiving space, and the electrode assembly 32 is received in the receiving space.
  • the housing 31 may include a shell 311 and an end cap 312, wherein the shell 311 is a hollow structure with one side open, and the end cap 312 covers the opening 311a of the shell 311 and forms a sealed connection to form a sealed space for accommodating the electrode assembly 32 and the electrolyte.
  • the electrode assembly 32 When assembling the battery cell 30 , the electrode assembly 32 may be placed in the housing 311 first, the end cap 312 may be closed on the opening of the housing 311 , and then the electrolyte may be injected into the housing 311 through the electrolyte injection port on the end cap 312 .
  • the housing 31 may also be used to contain electrolyte, such as electrolyte.
  • the housing 31 may be in various structural forms.
  • the shell 311 can be in various shapes, such as a cylinder, a cuboid, etc.
  • the shape of the shell 311 can be determined according to the specific shape of the electrode assembly 32. For example, if the electrode assembly 32 is a circle If the electrode assembly 32 is a rectangular parallelepiped structure, the housing 311 may be a cylindrical structure. If the electrode assembly 32 is a rectangular parallelepiped structure, the housing 311 may be a rectangular parallelepiped structure. In FIG4 , illustratively, the housing 311 and the electrode assembly 32 are both rectangular parallelepiped structures.
  • the shell 311 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and the embodiment of the present application does not impose any special restrictions on this.
  • Electrodes assemblies 32 There may be one or more electrode assemblies 32 housed in the housing 311. In Fig. 4, there are two electrode assemblies 32 housed in the housing 311.
  • the battery provided according to the embodiment of the present application includes a housing 11, a battery cell 30, an electrical component 40 and at least one transition member 50.
  • the housing 11 has a first accommodating chamber 11a, a second accommodating chamber 11b and a partition 113, and the partition 113 is used to isolate the first accommodating chamber 11a and the second accommodating chamber 11b.
  • the battery cell 30 is accommodated in the first accommodating chamber 11a, and the electrical component 40 is accommodated in the second accommodating chamber 11b.
  • the transition member 50 is arranged on the partition 113 and is sealed and connected to the partition 113. At least one transition member 50 is used to electrically connect the electrical component 40 and the battery cell 30.
  • the separator 113 isolates the first accommodating chamber 11a and the second accommodating chamber 11b from each other, so that the first accommodating chamber 11a and the second accommodating chamber 11b each maintain an independent sealed state, and sparks or flames generated by a failure such as thermal runaway in either of them are difficult to be transmitted to the other. In this way, the possibility of thermal runaway in one of the battery cell 30 and the electrical component 40 causing thermal runaway in the other can be reduced.
  • the partition 113 is used to separate the first accommodating chamber 11a from the second accommodating chamber 11b, and the partition 113 can be disposed in the box body 11.
  • the partition 113 can be in a plate-like, block-like or other irregular shapes, which can be selected according to actual needs.
  • the first accommodating chamber 11a and the second accommodating chamber 11b can be arranged in the horizontal direction, or in the direction of gravity, which can be selected according to actual needs.
  • the first accommodating chamber 11a is located below the second accommodating chamber 11b in the direction of gravity.
  • the second accommodating cavity 11 b may only accommodate the electrical component 40 , or a battery such as a circuit board or other components in the vehicle may be integrated into the first accommodating cavity 11 a .
  • the battery cell 30 is connected to the adapter structure through a wiring harness or a wire in the first accommodation cavity 11a.
  • the adapter component 50 is disposed at one end of the first accommodating chamber 11a, and the electrical component 40 is connected to the end of the adapter component 50 that is disposed at the second accommodating chamber 11b through a wiring harness or a wire.
  • the adapter component 50 serves as an intermediate connecting component to realize the electrical connection between the battery cell 30 and the electrical component 40, thereby ensuring the normal operation of the battery.
  • the transition member 50 is sealed and connected to the partition 113 to maintain the sealing properties of the first accommodating chamber 11a and the second accommodating chamber 11b. In this way, the sealing properties of the first accommodating chamber 11a and the second accommodating chamber 11b can be maintained, and the electrical connection between the battery cell 30 in the first accommodating chamber 11a and the electrical component 40 in the second accommodating chamber 11b can be achieved.
  • the electrical component 40 may include at least one of a relay, a fuse, and a sensor.
  • the relay and the fuse are used for overcurrent or overtemperature protection. Specifically, when the voltage or current provided by the battery 10 to the electrical device is overloaded, the relay and the fuse protect the battery 10 or the related electrical components of the electrical device by breaking the circuit.
  • the sensor can be used to collect information such as the voltage or current in the circuit to determine whether the related components are in a normal working state. In this way, the electrical component 40 can be configured with related components as needed to ensure the normal operation of the electrical component 40.
  • the battery 10 may also include a battery management system, which is accommodated in the second accommodation cavity 11b, and at least one adapter member 50 is used to electrically connect the battery management system and the battery cell 30.
  • the battery management system may integrate components such as a circuit board, a sensor, a computing unit, and a processor.
  • the battery management system is electrically connected to the battery cell 30 through a wiring harness to collect various operating parameters such as the temperature, pressure or current of the battery cell 30.
  • the battery management system may also perform preliminary calculations or processing on the collected data to preliminarily determine the working condition of the battery cell 30.
  • the battery management system can also send a control signal to the battery cell 30 so that the battery cell 30 can perform the next operation.
  • the battery management system and the battery cell 30 exchange information, which can be that the battery cell 30 transmits its own operating parameters such as temperature, pressure or current to the battery management system, or the battery management system transmits a control signal to the relevant battery cell 30 so that the battery cell 30 can make a corresponding response.
  • the battery management system may also be electrically connected to the unit distribution component.
  • the battery management system is electrically connected to the electrical component 40 through a wiring harness or other structure to collect the electrical voltage, current or temperature.
  • the integration of the internal structure of the battery 10 is improved, and the battery management system is isolated from the battery cell 30.
  • thermal runaway occurs in the battery cell 30
  • the risk of the thermal runaway spreading to the battery management system and causing thermal runaway of the battery management system is reduced, which is further beneficial to improving the reliability of the battery 10.
  • the number of the transition member 50 may be one, or the number of the transition member 50 may be multiple, and they are respectively connected to different components in the first accommodating cavity 11 a and the second accommodating cavity 11 b .
  • all of the multiple transition components 50 can be used to electrically connect the electrical components and the battery cells 30, or some of them can be used to electrically connect the electrical components and the battery cells 30, which can be selected according to actual needs.
  • the battery 10 provided in the embodiment of the present application is provided with a first accommodating chamber 11a, a second accommodating chamber 11b and a partition 113 in the box body 11, and the first accommodating chamber 11a and the second accommodating chamber 11b are isolated from each other by the partition 113, and the transition component 50 is provided on the partition 113, and the electrical connection between the battery cell 30 in the first accommodating chamber 11a and the electrical component 40 in the second accommodating chamber 11b is achieved by the transition component 50.
  • the transition component 50 is sealed and connected to the partition 113 to achieve mutual isolation between the first accommodating chamber 11a and the second accommodating chamber 11b, so as to reduce the possibility of thermal runaway of one of the electrical component 40 and the battery cell 30 and spreading to the other, which is beneficial to improving the reliability performance of the battery 10.
  • the partition 113 has a through hole 113a connecting the first accommodating chamber 11a and the second accommodating chamber 11b, and at least a portion of the transition member 50 is disposed through the through hole 113a.
  • the battery 10 further includes a sealing member 6, which is disposed around the through hole 113a and abuts between the transition member 50 and the partition 113.
  • At least part of the adapter component 50 is passed through the through hole 113a, and the entire adapter component 50 can be arranged to be located in the through hole 113a, or a part of the adapter component 50 can be arranged to be located in the through hole 113a.
  • a part of the adapter can be arranged to be located in the through hole 113a, a part can be located in the first accommodating chamber 11a and used to be electrically connected to the battery cell 30, and another part can be located in the second accommodating chamber 11b and used to be electrically connected to the electrical component 40.
  • the sealing member 6 is disposed around the through hole 113a and abuts against the transition member 50 and the partition member 113.
  • the seal 6 can be arranged on the side of the partition 113 facing the first accommodating chamber 11a, or the seal 6 can be arranged on the side of the partition 113 facing the second accommodating chamber 11b.
  • the transition member 50 is fastened to the partition 113, and the seal 6 is compressed and deformed, and abuts between the transition member 50 and the partition 113.
  • the deformation of the seal 6 is used to achieve a sealed connection of the mounting hole, thereby achieving mutual isolation between the first accommodating chamber 11a and the second accommodating chamber 11b.
  • the partition 113 is provided with a through hole 113a, so as to facilitate the arrangement of the transition component 50 on the partition 113, and the battery 10 is provided with a seal 6, and the through hole 113a is sealed by the seal 6 to achieve mutual isolation between the first accommodating chamber 11a and the second accommodating chamber 11b.
  • the connection between the transition component 50 and the partition 113 is facilitated, and it is beneficial to improve the connection strength between the transition component 50 and the partition 113.
  • the transfer member 50 includes an insulating shell 51 and a conductive terminal 52.
  • the insulating shell 51 has a receiving cavity 51a with first openings at both ends, and the conductive terminal 52 is received in the receiving cavity 51a.
  • the conductive terminal 52 is used to electrically connect the battery cell 30 and the electrical component 40, and the sealing member 6 is abutted between the insulating shell 51 and the partition 113.
  • a portion of the insulating shell 51 may be arranged to pass through the through hole 113 a , and the first accommodating chamber 11 a and the second accommodating chamber 11 b may be isolated from each other through the sealed connection between the insulating shell 51 and the partition 113 .
  • the conductive terminal 52 is accommodated in the accommodating cavity 51a.
  • the conductive terminal 52 can be arranged to fill the accommodating cavity 51a and abut against the insulating shell 51 in the accommodating cavity 51a to reduce the risk of the first accommodating cavity 11a and the second accommodating cavity 11b being electrically connected to each other through the accommodating cavity 51a of the insulating shell 51.
  • the insulating housing 51 can be processed by injection molding and connected to the conductive terminal 52 by injection molding.
  • the conductive terminal 52 is used to realize the electrical connection between the battery cell 30 and the electrical component 40.
  • the insulating shell 51 can provide insulation between the conductive terminal 52 and the partition 113 or other conductive components in the first accommodating cavity 11a and the second accommodating cavity 11b, thereby reducing the risk of the conductive terminal 52 contacting other conductive components and causing an internal short circuit in the battery 10, which is beneficial to further improve the reliability of the battery 10.
  • the insulating housing 51 includes The shell body 511 and the flange portion 512 arranged on the peripheral side of the shell body 511, the shell body 511 has a accommodating cavity 51a, the flange portion 512 has a groove 512a, at least part of the seal 6 is accommodated in the groove 512a, and abuts between the flange portion 512 and the partition 113.
  • the flange portion 512 can be arranged in a ring shape around the shell body 511, or the flange portion 512 is arranged on a part of the circumference of the shell body 511.
  • the insulating shell 51 includes a plurality of flange portions 512, and the plurality of flange portions 512 are arranged at intervals along the circumference of the shell body 511.
  • the insulating housing 51 is fastened to the partition 113 through the flange 512 by means of threaded connection, riveting, welding or pin connection.
  • the flange 512 is provided with a recessed portion, and at least a portion of the seal 6 is provided to be accommodated in the recessed portion 512a, so that the seal 6 is positioned through the recessed portion 512a, thereby reducing the risk of the seal 6 being displaced relative to the transition member 50 or the partition 113 and causing the seal 6 to fail to seal.
  • the flange portion 512 is provided with a groove 512a, and at least a portion of the seal 6 is accommodated in the groove 512a.
  • the groove 512a can be used to position the seal 6, which is beneficial to improving the sealing reliability of the seal 6.
  • the battery 10 also includes a busbar 71 and a conductive member 72.
  • the busbar 71 is disposed in the first accommodating cavity 11a and electrically connects the battery cell 30 and the conductive terminal 52.
  • the conductive member 72 is disposed in the second accommodating cavity 11b and electrically connects the electrical component 40 and the conductive terminal 52.
  • both the busbar 71 and the conductive member 72 include copper bars, and the electrical connection between the battery cell 30 and the conductive terminal 52 is achieved through the busbar 71 , and the electrical connection between the electrical component 40 and the conductive terminal 52 is achieved through the conductive member 72 .
  • the busbar 71 and the conductive member 72 are provided to facilitate the reasonable setting of the position of the battery cell 30 in the first accommodating cavity 11a and the position of the electrical component 40 in the second accommodating cavity 11b according to actual needs, and the electrical connection between the battery cell 30 and the electrical component 40 is achieved through the busbar 71 and the conductive member 72 respectively. In this way, the flexibility of the arrangement of the battery cell 30 and the electrical component 40 is improved.
  • one end of the conductive terminal 52 facing the first accommodating cavity 11 a has a first mounting hole 52 a , and the first mounting hole 52 a is used for fastening connection between the busbar 71 and the conductive terminal 52 .
  • the first mounting hole 52a can be a plain hole, or the first mounting hole 52a is a threaded hole.
  • the first mounting hole 52a is provided at one end of the conductive terminal 52 facing the first accommodating cavity 11a, so that the busbar 71 and the conductive terminal 52 are conductively connected by threaded connection, pin connection, riveting, etc., and have a high connection strength, which is conducive to improving the connection reliability of the conductive terminal 52 and the busbar 71.
  • the conductive terminal 52 has a second mounting hole 52 b at one end facing the second accommodating cavity 11 b .
  • the second mounting hole 52 b is used for fastening the conductive member 72 to the conductive terminal 52 .
  • the second mounting hole 52b can be a plain hole, or the second mounting hole 52b can be a threaded hole.
  • the end of the conductive terminal 52 facing the second accommodating cavity 11b is provided with the second mounting hole 52b, so that the conductive member 72 and the conductive terminal 52 can be connected electrically by means of threaded connection, pin connection, riveting, etc., and have a high connection strength, which is conducive to improving the connection reliability of the conductive member 72 and the conductive terminal 52.
  • the transition member 50 includes a plurality of conductive terminals 52 , and the plurality of conductive terminals 52 are insulated from each other.
  • the electrical component 40 may include a variety of different components, each of which needs to be electrically connected to the battery cell 30. Therefore, multiple conductive terminals 52 or multiple adapter components 50 are required to achieve electrical connection between different electrical components 40 and the battery cell 30. For example, the positive and negative electrodes of the battery cell 30 are electrically connected to different electrical components 40 respectively.
  • the transfer component 50 includes a plurality of conductive terminals 52 , and the plurality of conductive terminals 52 are insulated from each other.
  • the conductive terminals 52 electrically connect the battery cell 30 and the electrical component 40 , it is beneficial to improve the structural compactness of the transfer component 50 and reduce the space occupied by the transfer component 50 .
  • the battery 10 includes a plurality of transition members 50 , at least two of which are arranged along a first direction X, and the insulating shell 51 has a shielding portion 513 on at least one side along the first direction X, and the shielding portion 513 extends outwardly along the axial direction of the through hole 113 a by a preset distance.
  • the first direction X may be any direction parallel to the surface of the partition 113, and may be specifically set as needed.
  • the insulating housing 51 has a shielding portion 513 on at least one side along the first direction X, and the shielding portion 513 may be provided on both sides of the insulating housing 51 along the first direction X, or the shielding portion 513 may be provided on either side of the insulating housing 51 along the first direction X.
  • the shielding portion 513 extends a preset distance along the circumference of the through hole 113a. During the process of electrically connecting the conductive terminal 52 and the electrical component 40 or the conductive terminal 52 and the battery cell 30, or after the connection is completed, the shielding portion 513 can be used to organize the conductive terminal 52 to be connected to other conductive components inside the battery 10, thereby reducing the risk of accidental touching of the conductive terminal 52, thereby reducing the risk of internal short circuit of the battery 10, and further improving the reliability of the battery 10.
  • the transition component 50 also includes a cover body 53, which covers one end of the insulating shell 51 facing the first accommodating cavity 11a, and/or the cover body 53 covers one end of the insulating shell 51 facing the second accommodating cavity 11b.
  • the cover 53 is covered on at least one of the ends of the insulating shell 51 facing the first accommodating cavity 11a and the second accommodating cavity 11b, so as to provide a certain degree of protection for the conductive terminal 52 and the busbar 71 or the conductive member 72, thereby reducing the risk of other conductive components accidentally touching the conductive terminal 52 and causing an internal short circuit in the battery 10.
  • the electrical device provided according to an embodiment of the present application includes the battery 10 provided in any of the above embodiments, and the battery 10 is used to provide electrical energy.
  • the electric device provided in the embodiment of the present application has the same technical effect as the battery 10 provided in any of the above embodiments, and will not be described in detail here.

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  • Battery Mounting, Suspending (AREA)
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Abstract

本申请提供一种电池以及用电装置,电池包括箱体、电池单体、电器元件以及至少一个转接构件;箱体具有第一容置腔、第二容置腔和分隔件,分隔件用于隔绝第一容置腔和第二容置腔;电池单体容置于第一容置腔内;电器元件容置于第二容置腔内;至少一个转接构件设置于分隔件,并与分隔件密封连接,至少一个转接构件用于电连接电器元件和电池单体。本申请实施例提供的电池,通过设置第一容置腔和第二容置腔相互隔绝,可以降低电器元件和电池单体中的一者发生热失控而蔓延到另一者的可能性,有利于提高电池的可靠性能。

Description

电池以及用电装置
相关申请的交叉引用
本申请要求享有于2023年01月28日提交的名称为“电池以及用电装置”的中国专利申请202320082586.5的优先权,该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池制造技术领域,特别是涉及一种电池以及用电装置。
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。电池单体可以包括镉镍电池单体、氢镍电池单体、锂离子电池单体和二次碱性锌锰电池单体等。
在电池技术的发展中,除了提高电池的使用性能外,如何提高电池的可靠性能也是一个不可忽视的问题。因此,如何提高电池的可靠性能,是电池技术中一个持续改进的技术问题
发明内容
本申请提供了一种电池以及用电装置,能够提高电池的可靠性能。
第一方面,本申请实施例提供的电池包括箱体、电池单体、电器元件以及至少一个转接构件;箱体具有第一容置腔、第二容置腔和分隔件,分隔件用于隔绝第一容置腔和第二容置腔;电池单体容置于第一容置腔 内;电器元件容置于第二容置腔内;至少一个转接构件设置于分隔件,并与分隔件密封连接,至少一个转接构件用于电连接电器元件和电池单体。
本申请实施例提供的电池,通过设置箱体第一容置腔、第二容置腔和分隔件,并通过分隔件实现第一容置腔和第二容置腔的相互隔绝,而转接构件设置于分隔件,并通过转接构件实现第一容置腔内的电池单体与第二容置腔内的电器元件的电连接,在实现电池单体与电器元件的电连接,以保证电池的正常工作的前提下,通过设置转接构件与分隔件密封连接,以实现第一容置腔和第二容置腔的相互隔绝,以降低电器元件和电池单体中的一者发生热失控而蔓延到另一者的可能性,有利于提高电池的可靠性能。
在一些实施例中,分隔件具有连通第一容置腔和第二容置腔的通孔,转接构件的至少部分穿设于通孔;电池还包括密封件,密封件环绕通孔设置,并抵接于转接构件与分隔件之间。
设置分隔件具有通孔,便于在分隔件上设置转接构件,又设置电池包括密封件,通过密封件实现对通孔的密封,以实现第一容置腔和第二容置腔的相互隔绝,如此,在实现第一容置腔和第二容置腔的相互密封前提下,便于转接构件与分隔件的连接,并有利于提高转接构件与分隔件的连接强度。
在一些实施例中,转接构件包括绝缘外壳和导电端子,绝缘外壳具有两端具有第一开口的容纳腔,导电端子容纳于容纳腔内;导电端子用于电连接电池单体和电器元件,密封件抵接于绝缘外壳和分隔件之间。如此,有利于降低导电端子与其它具有导电功能的构件接触而造成电池内部短路的风险,有利于进一步提高电池的可靠性能
在一些实施例中,绝缘外壳包括壳本体和设置于壳本体周侧的法兰部,壳本体具有容纳腔,法兰部具有凹槽,密封件的至少部分容纳于凹槽内,并抵接于法兰部和分隔件之间。设置法兰部具有凹槽,并设置密封件的至少部分容纳于凹槽内,可以利用凹槽对密封件进行定位,有利于提高密封件的密封可靠性。
在一些实施例中,电池还包括汇流件和导电件,汇流件设置于第一 容置腔内,并电连接电池单体和导电端子,导电件设置于第二容置腔内,并电连接电器元件和导电端子。便于根据实际需要合理设置第一容置腔内电池单体的位置,以及第二容置腔内电器元件的位置,并分别通过汇流件和导电件实现电池单体与电器元件的电连接。如此,有利于提高电池单体和电器元件布置位置的灵活性。
在一些实施例中,导电端子朝向第一容置腔的一端具有第一安装孔,第一安装孔用于汇流件与导电端子的紧固连接;和/或,导电端子朝向第二容置腔的一端具有第二安装孔,第二安装孔用于导电件与导电端子的紧固连接。如此设置,便于导电件与导电端子或者汇流件与导电端子通过螺纹连接、销接、铆接等方式导电连接,且具有较高的连接强度,有利于提高导电件和导电端子或者汇流件与导电端子的连接可靠性。
在一些实施例中,转接构件包括多个导电端子,多个导电端子相互绝缘。如此设置,在实现导电端子电连接电池单体与电器元件的前提下,有利于提高转接构件的结构紧凑性,降低转接构件占用的空间。
在一些实施例中,电池包括多个转接构件,至少两个转接构件沿第一方向排布,绝缘外壳沿第一方向的至少一侧具有遮挡部,遮挡部沿通孔的轴向向外延伸预设距离设置。如此设置,可以通过遮挡部组织导电端子与电池内部其它的导电构件连接,降低导电端子误触的风险,进而降低电池内部短路的风险,进一步提高电池的可靠性能。
在一些实施例中,转接构件还包括盖体,盖体盖合于绝缘外壳朝向第一容置腔的一端,和/或,盖体盖合于绝缘外壳朝向第二容置腔的一端。通过盖体盖合于绝缘外壳朝向第一容置的一端和第二容置腔的一端中的至少一者,以为导电端子与汇流件或者导电件提供一定的防护作用,降低其他导电构件与导电端子误触而造成电池内部的短路的风险。
第二方面,本申请实施例提供了一种用电装置,包括如第一方面实施例的电池,电池用于提供电能。
根据本申请实施例提供的用电装置,由于采用了本申请实施例提供的电池,因而具有同样的技术效果,在此不再赘述。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对本申请实施例中所需要使用的附图作简单地介绍,显而易见地,下面所描述的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据附图获得其他的附图。
图1为本申请一实施例提供的车辆的结构示意图;
图2为本申请一实施例提供的电池省略部分结构后的爆炸示意图;
图3为本申请实施例提供的电池中电池模块的结构示意图;
图4为本申请一些实施例提供的电池中电池单体的爆炸示意图;
图5为本申请实施例提供的电池的一种剖视结构示意图;
图6为本申请实施例提供的电池的另一种剖视结构示意图;
图7为本申请实施例提供的电池中转接构件和汇流件的爆炸结构示意图;
图8为本申请实施例提供的电池中一种转接构件的结构示意图;
图9为本申请实施例提供的电池中另一种转接构件的结构示意图;
图10为本申请实施例提供的电池中转接构件的主视图;
图11为图10沿A-A的剖视结构示意图。在附图中,附图并未按照实际的比例绘制。
附图标记说明:
1、车辆;1a、马达;1b、控制器;
10、电池;11、箱体;11a、第一容置腔;11b、第二容置腔;111、第一箱体部;112、第二箱体部;113、分隔件;113a、通孔;
20、电池模块;
30、电池单体;31、外壳;311、壳体;311a、开口;312、端盖;32、电极组件;
40、电器元件;
50、转接构件;51、绝缘外壳;51a、容纳腔;511、壳本体;512、法兰部;513、遮挡部;512a、凹槽;52、导电端子;52a、第一安装孔;52b、第二安装孔;53、盖体;
6、密封件;
71、汇流件;72、导电件;
X、第一方向。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理,但不能用来限制本申请的范围,即本申请不限于所描述的实施例。
在本申请的描述中,需要说明的是,除非另有说明,“多个”的含义是两个以上;术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述,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的限制。此外,术语“第一”、“第二”等仅用于描述目的,而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直,而是在误差允许范围之内。“平行”并不是严格意义上的平行,而是在误差允许范围之内。
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。本领域技术人员显式地和隐式地理解的是,本申请所描述的实施例可以与其它实施例相结合。
在本申请的描述中,还需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”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。对于本领域的普通技术人员而言,可视具体情况理解上述术语在本申请中的具体含义。
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。箱体可以避免液体或其他异物影响电池单体的充电或放电。
电池单体包括电极组件和电解液,电极组件包括正极极片、负极极片和分隔件。电池单体主要依靠金属离子在正极极片和负极极片之间移动来工作。正极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;正极集流体包括正极集流部和凸出于正极集流部的正极凸部,正极集流部涂覆有正极活性物质层,正极凸部的至少部分未涂覆正极活性物质层,正极凸部作为正极极耳。以锂离子电池为例,正极集流体的材料可以为铝,正极活性物质层包括正极活性物质,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;负极集流体包括负极集流部和凸出于负极集流部的负极凸部,负极集流部涂覆有负极活性物质层,负极凸部的至少部分未涂覆负极活性物质层,负极凸部作为负极极耳。负极集流体的材料可以为铜,负极活性物质层包括负极活性物质,负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断,正极极耳的数量为多个且层叠在一起,负极极耳的数量为多个且层叠在一起。分隔件的材质可以为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。
电池具有配电盒,配电盒内具有电器元件,电器元件通常包括电路板、继电器、熔断器、电流传感器、预充电电阻等元器件,电池通过配电盒与用电装置连接,以将电池的电能合理分配给用电装置的电机控制器、汽车加热器、空调压缩机等各用电器件。
发明人发现电池在工作的过程中,其配电盒容易发生热失控的问题后,便对电池的结构和工作过程进行了系统的分析和研究,结果发现,电池中容纳电池单体的空间和配电盒内的空间是相互连通的,如此,电池单体在工作的过程中,当电池单体存在热失控的问题,或者温度较高存在热失控的风险时,热量会蔓延至配电盒内,进而引发配电盒内出现热失控的问题,如此,严重影响的电池的可靠性能。
基于发明人发现的上述问题,发明人对电池结构进行了改进,本申请实施例描述的技术方案适用于电池以及使用电池的用电装置。
根据本申请实施例提供的电池包括箱体、电池单体、电器元件以及至少一个转接构件。箱体具有第一容置腔和第二容置腔和分隔件,分隔件用于隔绝第一容置腔和第二容置腔。电池单体容置于第一容置腔内,电器元件容置于第二容置腔内。转接构件设置于分隔件,并与分隔件密封连接,至少一个转接构件用于电连接电器元件和电池单体。
本申请实施例提供的电池,通过设置用于容纳电池单体的第一容置腔和用于容纳电器元件的第二容置腔相互隔绝,并通过转接构件实现电池单体和电器元件的电连接,如此,在电池正常工作时,电池单体与电器元件既可以保持电连接的状态,以实现电池的正常工作,又可以保持电池单体和电器元件相互隔绝的状态,在电池单体存热失控或者在热失控之前的温度较高时,可以降低热失控蔓延到第二容置腔内的风险,进而降低第二容置腔内的电器元件发生热失控的风险,如此,有利于提高电池的可靠性能。
用电装置可以是车辆、手机、便携式设备、笔记本电脑、轮船、航天器、电动玩具和电动工具等等。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用电装置不做特殊限制。
以下实施例为了方便说明,以用电装置为车辆为例进行说明。
如图1所示,车辆1的内部设置有电池10。电池10可以设置在车辆1的底部或头部或尾部。电池10可以用于车辆1的供电,例如,电池10可以作为车辆1的操作电源。
车辆1还可以包括控制器1b和马达1a。控制器1b用来控制电池10为马达1a供电,例如,用于车辆1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10不仅仅可以作为车辆1的操作电源,还可以作为车辆1的驱动电源,代替或部分地代替燃油或天然气为车辆1提供驱动动力。
参见图2所示,电池10包括电池单体(图2未示出)。电池10还可以包括用于容纳电池单体的箱体11。
箱体用于容纳电池单体,箱体11可以是多种结构形式。在一些实施例中,箱体可以包括第一箱体部部111和第二箱体部112。第一箱体部1111与第二箱体部112相互盖合。第一箱体部1111和第二箱体部112共同限定出用于容纳电池单体的容纳空间。第二箱体部112可以是一端开口的空心结构,第一箱体部111为板状结构,第一箱体部111盖合于第二箱体部112的开口侧,以形成具有容纳空间的箱体;第一箱体部111和第二箱体部112也可以均为一侧开口的空心结构。第一箱体部111的开口侧盖合于第二箱体部112的开口侧,以形成具有容纳空间的箱体11。当然,第一箱体部111和第二箱体部112可以是多种形状,比如,圆柱体、长方体等。
为提高第一箱体部111和第二箱体部112连接后的密封性,第一箱体部111和第二箱体部112之间还可以设置密封件,比如,密封胶、密封 圈等。
假设第一箱体部111盖合于第二箱体部112,第一箱体部111亦可称之为上箱盖,第二箱体部112亦可称之为下箱体。
在电池10中,电池单体可以是一个,也可以是多个。若电池单体为多个,多个电池单体之间可串联或并联或混联。混联是指多个电池单体中既有串联又有并联。多个电池单体之间可直接串联或并联或混联在一起,再将多个电池单体构成的整体容纳于箱体11内,也可以是多个电池单体先串联或并联或混联组成电池模块20。多个电池模块20再串联或并联或混联形成一个整体,并容纳于箱体内。
在一些实施例中,如图3所示,图3为图2所示的电池模块20的结构示意图。在电池模块20中,电池单体30为多个。多个电池单体30先串联或并联或混联组成电池模块20。多个电池模块20再串联或并联或混联形成一个整体,并容纳于箱体11内。
在一些实施例,电池模块20中的多个电池单体30之间可通过汇流部件实现电连接,以实现电池模块20中的多个电池单体30的并联或串联或混联。
请参照图4,图4为图3所示的电池单体30的爆炸示意图。本申请实施例提供的电池单体30包括电极组件32和外壳31,外壳31具有容容纳空间,电极组件32容纳于容纳空间内。
在一些实施例中,外壳31可以包括壳体311和端盖312,壳体311为一侧开口的空心结构,端盖312盖合于壳体311的开口311a处并形成密封连接,以形成用于容纳电极组件32和电解质的密封空间。
在组装电池单体30时,可先将电极组件32放入壳体311内,再将端盖312盖合于壳体311的开口,然后经由端盖312上的电解质注入口将电解质注入壳体311内。
在一些实施例中,外壳31还可用于容纳电解质,例如电解液。外壳31可以是多种结构形式。
壳体311可以是多种形状,比如,圆柱体、长方体等。壳体311的形状可以根据电极组件32的具体形状来确定。例如,若电极组件32为圆 柱体结构,壳体311则可选用为圆柱体结构。若电极组件32为长方体结构,壳体311则可选用长方体结构。在图4中,示例性地,壳体311和电极组件32均为长方体结构。
壳体311的材质可以是多种,比如,铜、铁、铝、不锈钢、铝合金等,本申请实施例对此不作特殊限制。
容纳于壳体311内的电极组件32可以是一个或多个。在图4中,容纳于壳体311内的电极组件32为两个。
如图5和图6所示,根据本申请实施例提供的电池包括箱体11、电池单体30、电器元件40以及至少一个转接构件50。箱体11具有第一容置腔11a和第二容置腔11b和分隔件113,分隔件113用于隔绝第一容置腔11a和第二容置腔11b。电池单体30容置于第一容置腔11a内,电器元件40容置于第二容置腔11b内。转接构件50设置于分隔件113,并与分隔件113密封连接,至少一个转接构件50用于电连接电器元件40和电池单体30。
分隔件113将第一容置腔11a和第二容置腔11b相互隔绝,则第一容置腔11a和第二容置腔11b各自保持独立的密封状态,其中任何一者由于热失控等故障而产生的火花或者火苗等很难传递到另一者中去。如此,可以降低电池单体30和电器元件40中的一者发生热失控而引发另一者发生热失控的可能性。
分隔件113用于隔绝第一容置腔11a和第二容置腔11b,则分隔件113可以设置于箱体11内,分隔件113可以呈板状、块状或者其它不规则的形状,可以根据实际需要进行选取。
第一容置腔11a和第二容置腔11b可以沿水平方向排布,或者,第一容置腔11a和第二容置腔11b可以沿重力方向排布,可以根据实际需要进行选取。示例性地,第一容置腔11a位于第二容置腔11b沿重力方向的下方。
第二容置腔11b内可以仅容置有电器元件40,也可以将线路板等电池或者车辆内的其它元件一起集成于第一容置腔11a内。
电池单体30在第一容置腔11a内通过线束或者导线等连接于转接构 件50朝向第一容置腔11a的一端,电器元件40在第二容置腔11b内通过线束或者导线等连接于转接构件50朝向第二容置腔11b的一端,如此,转接构件50作为中间连接件,可以实现电池单体30与电器元件40的电连接,保证电池的正常工作。
转接构件50与分隔件113密封连接,以保持第一容置腔11a和第二容置腔11b各自的密封性,如此,既能够保持第一容置腔11a和第二容置腔11b各自的密封性能,又能够实现第一容置腔11a内的电池单体30和第二容置腔11b内的电器元件40的电连接。
可选地,电器元件40可以包括继电器、熔断器以及传感器中的至少一者。其中,继电器和熔断器用于进行过流或者过温保护,具体地,在电池10向用电装置提供的电压或者电流超载时,继电器和熔断器通过断路的方式,对电池10或者用电装置的相关用电器件进行保护。传感器可以用于采集电路中的电压或者电流等信息,以判断相关元器件是否处于正常工作状态。如此,可以根据需要配置电器元件40具有相关的元器件,以保证电器元件40的正常工作。
可选地,电池10还可以包括电池管理系统,电池管理系统容置于第二容置腔11b,至少一个转接构件50用于电连接电池管理系统和电池单体30。具体地,电池管理系统可以集成有线路板、传感器、计算单元以及处理器等元器件。电池管理系统通过线束与电池单体30电连接,以采集电池单体30的温度、压力或者电流等各项工作参数。可选地,电池管理系统还可以对采集到的数据进行初步的计算或者处理,以初步判断电池单体30的工作状况。
可选地,电池管理系统还可以向电池单体30发送控制信号,以便于电池单体30进行下一步的操作。电池管理系统与电池单体30进行信息交互,可以是电池单体30将自身工作的温度、压力或者电流等相关工作参数传送给电池管理系统,或者,电池管理系统将控制信号传送给相关电池单体30,以便于电池单体30作出相应的反应。
可选地,电池管理系统还可以与配单元件电连接,示例性地,电池管理系统与电器元件40通过线束等结构电连接,以采集电器元件40的电 压、电流或者温度等信息。
通过将电池管理系统集成在第二容置腔11b内,提高电池10内部结构的集成度,且电池管理系统与电池单体30相互隔绝,在电池单体30存在热失控时,降低热失控蔓延至电池管理系统而引发电池管理系统的热失控的风险,进一步有利于提高电池10的可靠性能。
可选地,转接构件50的数量可以是一个,或者转接构件50的数量为多个,并分别连接第一容置腔11a和第二容置腔11b内的不同元器件。
在转接构件50的数量为多个的实施例中,多个转接构件50可以均用于电连接电器元件和电池单体30,或者,其中的一部分用于电连接电器元件和电池单体30,可以根据实际需要进行选取。
本申请实施例提供的电池10,通过设置箱体11第一容置腔11a、第二容置腔11b和分隔件113,并通过分隔件113实现第一容置腔11a和第二容置腔11b的相互隔绝,而转接构件50设置于分隔件113,并通过转接构件50实现第一容置腔11a内的电池单体30与第二容置腔11b内的电器元件40的电连接,在实现电池单体30与电器元件40的电连接,以保证电池10的正常工作的前提下,通过设置转接构件50与分隔件113密封连接,以实现第一容置腔11a和第二容置腔11b的相互隔绝,以降低电器元件40和电池单体30中的一者发生热失控而蔓延到另一者的可能性,有利于提高电池10的可靠性能。
如图6、图10和图11所示,在一些实施例中,分隔件113具有连通第一容置腔11a和第二容置腔11b的通孔113a,转接构件50的至少部分穿设于通孔113a。电池10还包括密封件6,密封件6环绕通孔113a设置,并抵接于转接构件50与分隔件113之间。
转接构件50的至少部分穿设于通孔113a,则可以设置转接构件50全部位于通孔113a内,或者设置转接构件50的一部分位于通孔113a内,示例性地,可以设置转接件的一部分位于通孔113a内,一部分位于第一容置腔11a内,并用于与电池单体30电连接,还有一部分位于第二容置腔11b内,并用于与电器元件40电连接。
密封件6环绕通孔113a设置,并抵接于转接构件50与分隔件113 设置,则密封件6可以设置于分隔件113朝向第一容置腔11a的一侧,或者,密封件6设置于分隔件113朝向第二容置腔11b的一侧。将转接构件50与分隔件113紧固连接,密封件6产生压缩形变,并抵接于转接构件50与分隔件113之间,利用密封件6的形变,实现对安装孔的密封连接,进而实现第一容置腔11a和第二容置腔11b的相互隔绝。
因此,设置分隔件113具有通孔113a,便于在分隔件113上设置转接构件50,又设置电池10包括密封件6,通过密封件6实现对通孔113a的密封,以实现第一容置腔11a和第二容置腔11b的相互隔绝,如此,在实现第一容置腔11a和第二容置腔11b的相互密封前提下,便于转接构件50与分隔件113的连接,并有利于提高转接构件50与分隔件113的连接强度。
如图7、图8和图9所示,在一些实施例中,转接构件50包括绝缘外壳51和导电端子52,绝缘外壳51具有两端具有第一开口的容纳腔51a,导电端子52容纳于容纳腔51a内。导电端子52用于电连接电池单体30和电器元件40,密封件6抵接于绝缘外壳51和分隔件113之间。
可以设置绝缘外壳51的一部分穿设于通孔113a内,并通过绝缘外壳51与分隔件113的密封连接实现第一容置腔11a和第二容置腔11b的相互隔绝。
导电端子52容纳于容纳腔51a内,则可以设置导电端子52填充与容纳腔51a内,并在容纳腔51a内与绝缘外壳51抵接,以降低第一容置腔11a和第二容置腔11b通过绝缘外壳51的容纳腔51a相互导通的风险。
示例性地,绝缘外壳51可以通过注塑成型的方式加工,并与导电端子52注塑连接。
导电端子52用于实现电池单体30与电器元件40的电连接,绝缘外壳51可以对导电端子52与分隔件113或者第一容置腔11a和第二容置腔11b内的其它的具有导电功能的构件提供绝缘作用,降低导电端子52与其它具有导电功能的构件接触而造成电池10内部短路的风险,有利于进一步提高电池10的可靠性能。
请继续参阅图7、图8和图9,在一些实施例中,绝缘外壳51包括 壳本体511和设置于壳本体511周侧的法兰部512,壳本体511具有容纳腔51a,法兰部512具有凹槽512a,密封件6的至少部分容纳于凹槽512a内,并抵接于法兰部512和分隔件113之间。
可选地,法兰部512可以围绕壳本体511设置一周呈环形,或者,法兰部512设置于壳本体511周侧的一部分,示例性地,绝缘外壳51包括多个法兰部512,多个法兰部512沿壳本体511的周向间隔设置。
具体地,绝缘外壳51通过法兰部512与分隔件113通过螺纹连接、铆接、焊接或者销连接等方式紧固连接。设置法兰部512具有凹部,并设置密封件6的至少部分容纳于凹槽512a内,以通过凹槽512a对密封件6进行定位,降低密封件6相对转接构件50或者分隔件113产生位移而造成密封件6的密封失效的风险。
因此,设置法兰部512具有凹槽512a,并设置密封件6的至少部分容纳于凹槽512a内,可以利用凹槽512a对密封件6进行定位,有利于提高密封件6的密封可靠性。
如图6所示,在一些实施例中,电池10还包括汇流件71和导电件72,汇流件71设置于第一容置腔11a内,并电连接电池单体30和导电端子52,导电件72设置于第二容置腔11b内,并电连接电器元件40和导电端子52。
示例性地,汇流件71和导电件72均包括铜巴片,通过汇流件71实现电池单体30和导电端子52的电连接,通过导电件72实现电器元件40与导电端子52的电连接。
设置汇流件71和导电件72,便于根据实际需要合理设置第一容置腔11a内电池单体30的位置,以及第二容置腔11b内电器元件40的位置,并分别通过汇流件71和导电件72实现电池单体30与电器元件40的电连接。如此,有利于提高电池单体30和电器元件40布置位置的灵活性。
如图10和图11所示,在一些实施例中,导电端子52朝向第一容置腔11a的一端具有第一安装孔52a,第一安装孔52a用于汇流件71与导电端子52的紧固连接。
第一安装孔52a可以是光孔,或者,第一安装孔52a为螺纹孔。设置导电端子52朝向第一容置腔11a的一端具有第一安装孔52a,便于汇流件71与导电端子52通过螺纹连接、销接、铆接等方式导电连接,且具有较高的连接强度,有利于提高导电端子52和汇流件71的连接可靠性。
请继续参阅图10和图11,在一些实施例中,导电端子52朝向第二容置腔11b的一端具有第二安装孔52b,第二安装孔52b用于导电件72与导电端子52的紧固连接。
同第一安装孔52a,第二安装孔52b可以是光孔,或者,第二安装孔52b为螺纹孔。设置导电端子52朝向第二容置腔11b的一端具有第二安装孔52b,便于导电件72与导电端子52通过螺纹连接、销接、铆接等方式导电连接,且具有较高的连接强度,有利于提高导电件72和导电端子52的连接可靠性。
在一些实施例中,转接构件50包括多个导电端子52,多个导电端子52相互绝缘。
电器元件40可以包括多种不同的元器件,各元器件均需要与电池单体30电连接,因此需要多个导电端子52或者多个转接构件50,以实现不同电器元件40与电池单体30的电连接,示例性地,电池单体30的正极和负极分别与不同的电器元件40电连接。
设置转接构件50包括多个导电端子52,且多个导电端子52相互绝缘,在实现导电端子52电连接电池单体30与电器元件40的前提下,有利于提高转接构件50的结构紧凑性,降低转接构件50占用的空间。
如图7所示,在一些实施例中,电池10包括多个转接构件50,至少两个转接构件50沿第一方向X排布,绝缘外壳51沿第一方向X的至少一侧具有遮挡部513,遮挡部513沿通孔113a的轴向向外延伸预设距离设置。
第一方向X可以是任意平行于分隔件113的表面的方向,可以根据需要具体设置。绝缘外壳51沿第一方向X的至少一侧具有遮挡部513,则可以在绝缘外壳51沿第一方向X的两侧均设置有遮挡部513,或者,在绝缘外壳51沿第一方向X的任一侧设置遮挡部513。
遮挡部513沿通孔113a的周向延伸预设距离,则在对导电端子52与电器元件40或者导电端子52与电池单体30进行电连接的过程中,或者在连接完成后,可以通过遮挡部513组织导电端子52与电池10内部其它的导电构件连接,降低导电端子52误触的风险,进而降低电池10内部短路的风险,进一步提高电池10的可靠性能。
如图7和图9所示,在一些实施例中,转接构件50还包括盖体53,盖体53盖合于绝缘外壳51朝向第一容置腔11a的一端,和/或,盖体53盖合于绝缘外壳51朝向第二容置腔11b的一端。
具体地,在导电端子52与电池单体30或者与电器元件40电连接完成后,通过盖体53盖合于绝缘外壳51朝向第一容置腔11a的一端和第二容置腔11b的一端中的至少一者,以为导电端子52与汇流件71或者导电件72提供一定的防护作用,降低其他导电构件与导电端子52误触而造成电池10内部短路的风险。
根据本申请实施例提供的用电装置包括上述任一实施例提供的电池10,电池10用于提供电能。
本申请实施例提供的用电装置,由于采用了上述任一实施例提供的电池10,因而具有同样的技术效果,在此不再赘述。。
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 (10)

  1. 一种电池,包括:
    箱体,具有第一容置腔、第二容置腔和分隔件,所述分隔件用于隔绝所述第一容置腔和所述第二容置腔;
    电池单体,容置于所述第一容置腔内;
    电器元件,容置于所述第二容置腔内;
    至少一个转接构件,设置于所述分隔件,并与所述分隔件密封连接,至少一个所述转接构件用于电连接所述电器元件和所述电池单体。
  2. 根据权利要求1所述的电池,其中,所述分隔件具有连通所述第一容置腔和所述第二容置腔的通孔,所述转接构件的至少部分穿设于所述通孔;
    所述电池还包括密封件,所述密封件环绕所述通孔设置,并抵接于所述转接构件与所述分隔件之间。
  3. 根据权利要求2所述的电池,其中,所述转接构件包括绝缘外壳和导电端子,所述绝缘外壳具有两端具有第一开口的容纳腔,所述导电端子容纳于所述容纳腔内;
    所述导电端子用于电连接所述电池单体和所述电器元件,所述密封件抵接于所述绝缘外壳和所述分隔件之间。
  4. 根据权利要求3所述的电池,其中,所述绝缘外壳包括壳本体和设置于所述壳本体周侧的法兰部,所述壳本体具有所述容纳腔,所述法兰部具有凹槽,所述密封件的至少部分容纳于所述凹槽内,并抵接于所述法兰部和所述分隔件之间。
  5. 根据权利要求3或4所述的电池,其中,所述电池还包括汇流件和导电件,所述汇流件设置于所述第一容置腔内,并电连接所述电池单体和所述导电端子,所述导电件设置于所述第二容置腔内,并电连接所述电器元件和所述导电端子。
  6. 根据权利要求5所述的电池,其中,所述导电端子朝向所述第一容置腔的一端具有第一安装孔,所述第一安装孔用于所述汇流件与所述导电 端子的紧固连接;和/或,
    所述导电端子朝向所述第二容置腔的一端具有第二安装孔,所述第二安装孔用于所述导电件与所述导电端子的紧固连接。
  7. 根据权利要求3至6任一项所述的电池,其中,所述转接构件包括多个所述导电端子,多个所述导电端子相互绝缘。
  8. 根据权利要求3至7任一项所述的电池,其中,所述电池包括多个所述转接构件,至少两个所述转接构件沿第一方向排布,所述绝缘外壳沿所述第一方向的至少一侧具有遮挡部,所述遮挡部沿所述通孔的轴向向外延伸预设距离设置。
  9. 根据权利要求3至8任一项所述的电池,其中,所述转接构件还包括盖体,所述盖体盖合于所述绝缘外壳朝向所述第一容置腔的一端,和/或,所述盖体盖合于所述绝缘外壳朝向所述第二容置腔的一端。
  10. 一种用电装置,包括如权利要求1至9任一项所述的电池,所述电池用于提供电能。
PCT/CN2023/089325 2023-01-28 2023-04-19 电池以及用电装置 Ceased WO2024156154A1 (zh)

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