WO2022134123A1 - 阀、电池、用电设备、阀的制造设备和方法 - Google Patents

阀、电池、用电设备、阀的制造设备和方法 Download PDF

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Publication number
WO2022134123A1
WO2022134123A1 PCT/CN2020/139774 CN2020139774W WO2022134123A1 WO 2022134123 A1 WO2022134123 A1 WO 2022134123A1 CN 2020139774 W CN2020139774 W CN 2020139774W WO 2022134123 A1 WO2022134123 A1 WO 2022134123A1
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WO
WIPO (PCT)
Prior art keywords
valve
injection port
box
medium injection
medium
Prior art date
Application number
PCT/CN2020/139774
Other languages
English (en)
French (fr)
Inventor
王志超
姜利文
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to PCT/CN2020/139774 priority Critical patent/WO2022134123A1/zh
Priority to EP20931712.2A priority patent/EP4044351B1/en
Priority to CN202080102732.5A priority patent/CN115803953A/zh
Priority to US17/534,883 priority patent/US20220209359A1/en
Publication of WO2022134123A1 publication Critical patent/WO2022134123A1/zh

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/375—Vent means sensitive to or responsive to temperature
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular, to a valve, a battery, an electrical device, and a valve manufacturing device and method.
  • lithium-ion batteries are generally used in vehicles.
  • As a rechargeable battery lithium-ion batteries have the advantages of small size, high energy density, high power density, many cycles of use and long storage time.
  • a battery generally includes a case and a battery cell (rechargeable battery) accommodated in the case.
  • the case can provide a sealed environment for the battery cell to prevent liquid or foreign matter from affecting the charging or discharging of the battery cell.
  • it is difficult to control the fire when the battery cell inside the battery is thermally out of control.
  • Embodiments of the present application provide a valve, a battery, an electrical device, and a valve manufacturing device and method, so as to improve the problem of difficult fire control when a battery cell inside the battery is thermally out of control.
  • an embodiment of the present application provides a valve, including a valve body and a closure; the valve body is used for being installed on a box body, and a medium injection port for connecting with a fire fighting device is provided on the valve body; the A closure member is connected to the valve body and closes the medium injection port, the closure member is configured to open the media injection port when the internal pressure or temperature of the tank body reaches a threshold value to discharge the tank body internal pressure, and allow the fire fighting device to inject fire fighting medium into the tank through the medium injection port.
  • the medium injection port can be connected with the fire fighting device, so that the fire fighting medium can be injected into the box through the fire fighting device.
  • the closure element opens the medium injection port, and the pressure in the box can be released through the medium injection port.
  • the fire-fighting device can be connected to the medium injection port, and the fire-fighting medium provided by the fire-fighting device can enter the box through the medium injection port to cool the battery cells in the box and reduce the internal pressure of the box.
  • valve body is provided with a pressure relief port
  • closure member closes the pressure relief port
  • closure member is configured to open when the internal pressure or temperature of the tank body reaches a threshold value.
  • the pressure relief port and the medium injection port are used to relieve the pressure inside the box.
  • the valve body is also provided with a pressure relief port, and the pressure relief port and the medium injection port can be opened through the closing element.
  • the closure piece opens the pressure relief port and the medium injection port
  • the pressure inside the box can be released through the pressure relief port and the medium injection port, and the fire-fighting medium provided by the fire protection device can also enter the box through the medium injection port and the pressure relief port in turn. inside the body to control the fire inside the box.
  • the valve body includes a body and a mounting member; the pressure relief port is provided on the body, and the closing member is connected to the body; the mounting member is mounted on the body, and the medium injection port on the mount.
  • the valve body is of a split structure, which is simple in structure and convenient for arranging the closing parts. Since the medium injection port is arranged on the mounting piece, the mounting piece is a component connected with the fire fighting device, and the mounting piece can be replaced according to requirements.
  • the pressure relief port includes an inlet and an outlet; the inlet is for communicating with the medium injection port when the closure member opens the pressure relief port and the medium injection port; the outlet It is used for discharging the gas in the box when the fire-fighting medium enters the box through the medium injection port and the inlet in sequence.
  • the inlet and the outlet are part of the pressure relief port.
  • the discharge in the box can be discharged outside the box through the inlet and the outlet.
  • the closure element opens the pressure relief port and the medium injection port, the inlet is communicated with the medium injection port, and the fire-fighting medium provided by the fire protection device can enter the box through the medium injection port and the inlet in turn.
  • the gas in the box can pass through The outlet is discharged to the outside of the box to achieve the purpose of balancing the pressure inside and outside the box, reducing the risk that the pressure inside the box gradually increases, and the fire-fighting medium provided by the fire-fighting device is not easy to enter the box.
  • the pressure relief port comprises a plurality of the inlets distributed at circumferential intervals and a plurality of the outlets distributed at a circumferential interval; the plurality of the outlets are located on the outer periphery of the plurality of the inlets.
  • the inlets and outlets are distributed at intervals in the circumferential direction, so that the fire-fighting medium can enter the box more quickly through the multiple inlets, and the gas in the box can pass through the multiple outlets more quickly. discharged out of the box.
  • the multiple outlets are located on the outer periphery of the multiple inlets, and the arrangement is reasonable. During the process of the fire-fighting medium continuously entering the box, it is more convenient for the gas in the box to be discharged to the outside of the box through the multiple outlets.
  • the mounting member is provided with an exhaust port independent of the medium injection port; when the closure member opens the pressure relief port and the medium injection port, the gas can be sequentially It is discharged to the outside of the box through the outlet and the exhaust port.
  • the mounting piece is provided with an exhaust port independent of the medium injection port.
  • the setting of the exhaust port can reduce the blocking effect on the outlet after the mounting piece is installed on the body, so that the gas in the box can pass through the outlet and the outlet in sequence.
  • the exhaust port is discharged to the outside of the box, which improves the smoothness of gas discharge to the outside of the box, so that the gas in the box can be discharged more quickly.
  • the mounting member includes a pipe body, a ring body and a connecting body; the medium injection port is provided in the pipe body, and the pipe body is used for connecting with the main body; the ring body is sleeved on the body the connecting body and the ring body are connected through the connecting body; the exhaust port is formed between the inner peripheral wall of the ring body and the outer peripheral wall of the pipe body.
  • the medium injection port is arranged in the pipe body, and an exhaust port is formed between the inner peripheral wall and the outer peripheral wall of the ring body, so that the medium injection port and the exhaust port are independent of each other.
  • the mounting piece has a simple structure and is easy to form and manufacture.
  • the mount is plug-fitted with the body.
  • the mounting piece and the body are inserted and matched, so that the two can be quickly disassembled and assembled.
  • the mount is inserted into the body.
  • the mounting piece is inserted into the body, which can reduce the space outside the body occupied by the mounting piece, so that the overall structure of the valve is relatively compact.
  • a plurality of support parts are arranged at intervals in the body in the circumferential direction, and the support parts are used for supporting on the outer peripheral surface of the mounting member.
  • a plurality of support parts for supporting the outer peripheral surface of the mounting piece are arranged at intervals in the body, that is to say, after the mounting piece is inserted into the body, each support part will be supported on the outer peripheral surface of the mounting piece, Thereby, the positioning of the mounting piece is realized, and the mounting piece has good stability after being inserted into the body.
  • the support portion includes a support surface and a guide slope connected to the support surface
  • the guiding slope is used for guiding the mounting member into the body, so that the supporting surface is in contact with the outer peripheral surface of the mounting member.
  • the guiding slope of the support portion plays a good guiding role for the mounting piece during insertion into the body, so that the mounting piece can more easily enter the body and contact the position of the support surface of the support portion.
  • the fire protection device has a docking portion
  • the medium injection port includes a plurality of coaxially arranged docking holes of different diameters for docking with the docking portion.
  • a plurality of butt holes with different diameters may be suitable for butt joints with different diameters, and all butt joints with different diameters can be butted with the medium injection port.
  • the valve further includes a fixing member, and the fixing member is used for connecting with the valve body, so as to stabilize the valve body on the box body.
  • valve body can be fixed on the box body by the fixing member.
  • the fixing member is detachably connected to the valve body, and the fixing member is used to cooperate with the valve body to clamp the box wall of the box body.
  • the fixing member cooperates with the box body to clamp the box wall of the box body, so that the valve body can be stabilized on the box body.
  • the solid part is detachably connected to the valve body, and the fixed part and the valve body are connected together, the valve is installed in the box body, and the fixing part is removed from the valve body, the valve body can be removed from the box body, which is convenient for Valve removal and installation.
  • an embodiment of the present application provides a battery, including a box body, a battery cell, and the valve provided by any one of the embodiments of the first aspect; the battery cell is accommodated in the box body; the valve body is installed in the the box.
  • the fire-fighting medium can be injected into the box through a valve with a pressure relief function to cool the battery cells in the box, reducing the risk of large-area thermal diffusion of the battery cells inside the box, so as to be fast and effective. Control the fire inside the box to reduce the economic loss caused by the fire.
  • an embodiment of the present application provides an electrical device, including the battery provided by any one of the embodiments of the second aspect.
  • an embodiment of the present application provides a method for manufacturing a valve, including: providing a valve body, the valve body is provided with a medium injection port for connecting with a fire fighting device, and the valve body is used for being installed in a box body; providing a closure member; connecting the closure member to the valve body so that the closure member closes the medium injection port; wherein the closure member is configured to be configured when the internal pressure or temperature of the tank body reaches a threshold value
  • the medium injection port is opened to release the pressure inside the tank and allow the fire fighting device to inject fire-fighting medium into the tank through the medium injection port.
  • an embodiment of the present application further provides a valve manufacturing equipment, including a first providing device, a second providing device, and an assembling device; the first providing device is used to provide a valve body, and the valve body is provided with A medium injection port connected to a fire fighting device, the valve body is used to be installed on the box body; the second providing device is used to provide a closure; the assembly device is used to connect the closure to the valve body to make the closure closing the medium injection port; wherein the closure is configured to open the medium injection port when the internal pressure or temperature of the tank reaches a threshold value to relieve the pressure inside the tank and allow all The fire-fighting device injects fire-fighting medium into the box through the medium injection port.
  • FIG. 1 is a schematic structural diagram of a vehicle provided by some embodiments of the present application.
  • FIG. 2 is an exploded view of a battery provided by some embodiments of the present application.
  • FIG. 3 is a schematic structural diagram of a valve provided by some embodiments of the present application.
  • Figure 4 is an exploded view of the valve shown in Figure 3;
  • FIG. 5 is a schematic structural diagram of the mounting member shown in FIG. 4;
  • Figure 6 is a cross-sectional view of the mounting member shown in Figure 5;
  • Fig. 7 is a partial enlarged view of the body shown in Fig. 4;
  • FIG. 8 is a schematic structural diagram of a valve provided by further embodiments of the present application.
  • FIG. 9 is a schematic diagram of the installation of a valve and a box body provided by some embodiments of the present application.
  • FIG. 10 is a flowchart of a method for manufacturing a valve provided by some embodiments of the present application.
  • FIG. 11 is a schematic block diagram of a valve manufacturing equipment provided by some embodiments of the present application.
  • the terms “installed”, “connected”, “connected” and “attached” should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components.
  • installed should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components.
  • plural refers to two or more (including two).
  • the battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., which are not limited in the embodiments of the present application.
  • the battery cell may be in the form of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which are not limited in the embodiments of the present application.
  • the battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square-shaped battery cells, and soft-pack battery cells, which are not limited in the embodiments of the present application.
  • 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 batteries mentioned in this application may include battery modules or battery packs, and the like.
  • Batteries typically include a case for enclosing one or more battery cells. The box can prevent liquids or other foreign objects from affecting the charging or discharging of the battery cells.
  • the battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator.
  • the battery cell mainly relies on the movement of metal ions between the positive and negative plates to work.
  • the positive electrode sheet includes 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, and the positive electrode current collector without the positive electrode active material layer protrudes from the positive electrode current collector that has been coated with the positive electrode active material layer. , the positive electrode current collector without the positive electrode active material layer is used 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 manganate.
  • 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, and the negative electrode current collector without the negative electrode active material layer protrudes from the negative electrode current collector that has been coated with the negative electrode active material layer. , the negative electrode current collector without the negative electrode active material layer is used 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.
  • the number of positive tabs is multiple and stacked together, and the number of negative tabs is multiple and stacked together.
  • the material of the separator can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), and the like.
  • the electrode assembly may be a wound structure or a laminated structure, and the embodiment of the present application is not limited thereto.
  • a battery generally includes a case and battery cells accommodated in the case, and the case provides a sealed environment for the battery cells.
  • an explosion-proof valve is provided on the box body, and the explosion-proof valve releases the pressure inside the box body when the battery cell is thermally out of control.
  • the valve body is provided with a medium injection port for connecting with a fire fighting device
  • a closure member is connected to the valve body and closes the medium injection port
  • the closure member is configured to be inside the box body.
  • Electrical equipment can be vehicles, mobile phones, portable devices, notebook computers, ships, spacecraft, electric toys and power tools, and so on.
  • Vehicles can be fuel vehicles, gas vehicles or new energy vehicles, and new energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc.
  • spacecraft include airplanes, rockets, space shuttles, spacecraft, etc.
  • electric toys include fixed Electric toys that are portable or mobile, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc.
  • electric tools include metal cutting power tools, grinding power tools, assembling power tools and railway power tools, such as, Electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, electric impact drills, concrete vibrators and electric planers, etc.
  • the embodiments of the present application do not impose special restrictions on the above-mentioned electrical equipment.
  • the electric device is a vehicle as an example for description.
  • FIG. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present application.
  • the interior of the vehicle 1000 is provided with the battery 100 , and the battery 100 may be provided at the bottom or the head or the rear of the vehicle 1000 .
  • the battery 100 may be used for power supply of the vehicle 1000 , for example, the battery 100 may be used as an operating power source of the vehicle 1000 .
  • the vehicle 1000 may also include a controller 200 and a motor 300 for controlling the battery 100 to supply power to the motor 300 , eg, for starting, navigating, and running the vehicle 1000 for work power requirements.
  • the battery 100 can not only be used as the operating power source of the vehicle 1000, but also can be used as the driving power source of the vehicle 1000 to provide driving power for the vehicle 1000 instead or partially instead of fuel or natural gas.
  • FIG. 2 is an exploded view of a battery 100 according to some embodiments of the present application.
  • the battery 100 includes a case body 10 , a battery cell 20 and a valve 30 .
  • the battery cell 20 is accommodated in the case body 10 , and the valve body 31 Installed on the box 10 .
  • the box body 10 is used to accommodate the battery cells 20 to provide a sealed environment for the battery cells 20 , and the box body 10 may have various shapes, such as a rectangular parallelepiped, a cylinder, and the like. In FIG. 2 , the box body 10 is exemplarily a rectangular parallelepiped.
  • the box body 10 includes a first part 11 and a second part 12 , and the first part 11 and the second part 12 cover each other.
  • the first part 11 can be a hollow structure with one side open
  • the second part 12 can also be a hollow structure with one side open. Box 10 of body 20 .
  • the second part 12 may be located on the top of the first part 11 , the first part 11 may also be referred to as the lower case 10 , and the second part 12 may also be referred to as the upper case 10 .
  • valve 30 can be installed on the first part 11 of the box body 10 , and can also be arranged on the second part 12 of the box body 10 . In FIG. 2 , by way of example, valve 30 is mounted to second portion 12 .
  • the number of battery cells 20 in the case 10 may be one or a plurality of them. If there are a plurality of battery cells 20, the plurality of battery cells 20 may be connected in series or in parallel or in a mixed connection.
  • a mixed connection means that the plurality of battery cells 20 are both connected in series and in parallel.
  • the plurality of battery cells 20 can be directly connected in series or in parallel or mixed together, and then the whole formed by the plurality of battery cells 20 is accommodated in the box 10; of course, the plurality of battery cells 20 can also be connected in series first.
  • a battery 100 module is formed in parallel or in a mixed connection, and a plurality of battery 100 modules are connected in series or in parallel or in a mixed connection to form a whole, and are accommodated in the box 10 .
  • the battery cells 20 may be cylindrical, flat, rectangular, or other shapes.
  • the battery 100 may further include a bussing member 40 , and the multiple battery cells 20 may be electrically connected through the bussing member 40 , so as to realize the series, parallel or mixed connection of the multiple battery cells 20 .
  • the valve 30 on the case 10 may be one or a plurality of valves.
  • the valve 30 on the case 10 may be one or a plurality of valves.
  • two valves 30 are provided on the box body 10 .
  • FIG. 3 is a schematic structural diagram of a valve 30 provided by some embodiments of the application;
  • the valve 30 includes a valve body 31 and a closing member 32.
  • the valve body 31 is used to be installed on the box body 10, and the valve body 31 is provided with a medium injection port 311 for connecting with a fire fighting device (not shown in the figure);
  • the closing member 32 is connected to the valve body 31 and closes the medium injection port 311, which is closed
  • the member 32 is configured to open the medium injection port 311 when the internal pressure or temperature of the tank body 10 reaches a threshold value to relieve the pressure inside the tank body 10 and allow the fire fighting device to inject fire fighting medium into the tank body 10 through the medium injection port 311 .
  • the medium injection port 311 can be connected with a fire fighting device, so that fire fighting medium can be injected into the box 10 through the fire fighting device.
  • the closing member 32 opens the medium injection port 311 , and the pressure in the case 10 can be released through the medium injection port 311 .
  • the fire-fighting device can be connected to the medium injection port 311 , and the fire-fighting medium provided by the fire-fighting device can enter the box 10 through the medium injection port 311 , so that the battery cells 20 in the box 10 can be treated. Cooling and cooling reduces the risk of large-area thermal diffusion of the battery cells 20 inside the box body 10 , thereby quickly and effectively controlling the fire situation inside the box body 10 and reducing economic losses caused by fire.
  • the valve 30 provided in the embodiment of the present application has two functions. One is to release the pressure inside the box body 10 when the internal pressure or temperature of the box body 10 reaches a threshold value, and reduce the internal pressure caused by the excessive pressure inside the box body 10. Second, after the medium injection port 311 is opened, the fire-fighting device can be connected to the medium injection port 311, and the valve 30 plays the role of connecting the fire-fighting device and the box 10, so that the fire-fighting medium provided by the fire-fighting medium can be into the tank 10 through the valve 30 .
  • the closing member 32 when the internal pressure or temperature of the box body 10 reaches a threshold value, the closing member 32 opens the medium injection port 311 .
  • the closing member 32 can also open the medium injection port 311 by moving relative to the valve body 31.
  • the closing member 32 is a moving plate, and the closing member 32 is movably arranged on the valve body 31.
  • the internal pressure or temperature of the box 10 reaches When the threshold value is reached, the closing member 32 is moved under the action of the driving mechanism, thereby opening the medium injection port 311 .
  • the closing member 32 can also be destroyed to open the medium injection port 311. For example, as shown in FIG.
  • the closing member 32 is an explosion-proof diaphragm, and the explosion-proof diaphragm can be destroyed under the action of the internal pressure of the box 10, or It may be melted and destroyed in a high temperature environment, thereby opening the medium injection port 311 .
  • the fire-fighting medium may be a medium capable of cooling and extinguishing fire
  • the fire-fighting medium may be a gas, such as inert gas, carbon dioxide gas
  • the fire-fighting medium may also be a liquid, such as water.
  • the fire fighting device is a device for providing fire fighting medium, which may have various structures, which are not limited in this embodiment of the present application.
  • the fire fighting device has a docking portion (not shown) for docking with the medium injection port 311 .
  • the docking part can be a fire gun, the fire gun is used to connect with the medium injection port 311 , and the fire-fighting medium sprayed from the fire gun can enter the box 10 through the medium injection port 311 .
  • FIG. 4 is an exploded view of the valve 30 shown in FIG. 3
  • the valve body 31 is further provided with a pressure relief port 312
  • the closure member 32 closes the pressure relief port 312
  • the closure member 32 is It is configured to open the pressure relief port 312 and the medium injection port 311 when the internal pressure or temperature of the tank body 10 reaches a threshold value, so as to relieve the pressure inside the tank body 10 .
  • the pressure relief port 312 and the medium injection port 311 can be opened through the closure member 32 . After the closure member 32 opens the pressure relief port 312 and the medium injection port 311 , the pressure relief port 312 and the medium injection port 311 can be used to discharge the pressure inside the box 10 .
  • the fire fighting medium provided by the fire fighting device can also enter into the box body 10 through the medium injection port 311 and the pressure relief port 312 in sequence, so as to control the fire situation inside the box body 10 .
  • closure member 32 closing the pressure relief port 312 means that in the case where the closure member 32 is not damaged, foreign substances (dust particles, fire-fighting medium, etc.) cannot enter the box 10 through the pressure relief port 312,
  • closure member 32 closing the medium injection port 311 means that, under the condition that the closure member 32 is not damaged, foreign matter (dust particles, fire fighting medium, etc.) cannot enter the box 10 through the media injection port 311 .
  • the valve body 31 may be an integral structure or a split structure.
  • the valve body 31 is a split structure, the valve body 31 includes a body 313 and a mounting member 314 , the pressure relief port 312 is provided on the body 313 , the closing member 32 is connected to the body 313 , and the mounting member 314 is mounted on the body 313 , The medium injection port 311 is provided on the mounting member 314 .
  • the valve body 31 has a simple structure, which is convenient for arranging the closing member 32, and the mounting member 314 can be replaced according to requirements.
  • the pressure relief port 312 includes an inlet 3121 and an outlet 3122, the inlet 3121 is used for communicating with the medium injection port 311 when the closure 32 opens the pressure relief port 312 and the medium injection port 311, and the outlet 3122 is used for the fire fighting medium When entering the tank 10 through the medium injection port 311 and the inlet 3121 in sequence, the gas in the tank 10 is discharged.
  • the inlet 3121 and the outlet 3122 belong to a part of the pressure relief port 312 .
  • the discharge in the box 10 can be discharged out of the box 10 through the inlet 3121 and the outlet 3122 .
  • the closure member 32 opens the pressure relief port 312 and the medium injection port 311, the inlet 3121 is communicated with the medium injection port 311, and the fire fighting medium provided by the fire fighting device can enter the box 10 through the medium injection port 311 and the inlet 3121 in sequence.
  • the gas in the box body 10 can be discharged to the outside of the box body 10 through the outlet 3122, so as to achieve the purpose of balancing the internal and external pressure of the box body 10, reducing the internal pressure of the box body 10 and gradually increasing, so that the fire fighting medium provided by the fire fighting device is not easy. Risk of getting into the box 10 .
  • the inlet 3121 and the outlet 3122 in the pressure relief port 312 may be one or multiple.
  • the pressure relief port 312 includes a plurality of inlets 3121 distributed at circumferential intervals and a plurality of outlets 3122 distributed at circumferential intervals, and the plurality of outlets 3122 are located on the outer periphery of the plurality of inlets 3121 .
  • Both the inlets 3121 and the outlets 3122 are distributed at intervals in the circumferential direction, so that the fire-fighting medium can enter the box 10 more quickly through the plurality of inlets 3121, and the gas in the box 10 can pass through the plurality of outlets 3122 more quickly. discharged to the outside of the box 10.
  • the multiple outlets 3122 are located on the outer periphery of the multiple inlets 3121, and the arrangement is reasonable. During the process of the fire-fighting medium continuously entering the box body 10, it is more favorable for the gas in the box body 10 to be discharged to the outside of the box body 10 through the multiple outlets 3122. .
  • the plurality of outlets 3122 mentioned above are located on the outer periphery of the plurality of inlets 3121 , and it is understood that the outlets 3122 are located outside the inlets 3121 in the radial direction.
  • the outlet 3122 is located at the inlet Outside of 3121, the inlet 3121 is closer to the center of the first circumference and the second circumference than the outlet 3122.
  • the pressure relief port 312 has four inlets 3121 and four outlets 3122 .
  • the body 313 includes a cylindrical body 3131 and a separator 3132.
  • the cylindrical body 3131 is a hollow structure with both ends open in the axial direction.
  • the separator 3132 is fixed in the cylindrical body 3131.
  • 312 is arranged on the separator 3132 .
  • the closure member 32 can be fixed on the partition body 3132 to close the inlet 3121 and the outlet 3122 of the pressure relief port 312 .
  • the closure 32 is broken, thereby opening the inlet 3121 and the outlet 3122 .
  • the pressure relief port 312 may also have only the inlet 3121 , the relief pressure of the box 10 is relieved through the inlet 3121 , and the fire-fighting medium also enters the box 10 through the inlet 3121 .
  • FIG. 5 is a schematic structural diagram of the mounting member 314 shown in FIG. 4 .
  • the mounting member 314 is provided with an exhaust port 3141 that is independent of the medium injection port 311.
  • the closure member 32 opens the pressure relief port 312 and the medium injection port 311 , the gas can be discharged to the outside of the box 10 through the outlet 3122 and the exhaust port 3141 in sequence.
  • the arrangement of the exhaust port 3141 on the mounting member 314 can reduce the blocking effect of the mounting member 314 on the outlet 3122 after being mounted on the body 313, so that the gas in the box body 10 can be discharged to the box body through the outlet 3122 and the exhaust port 3141 in sequence. 10, the smoothness of gas discharge to the outside of the box body 10 is improved, so that the gas in the box body 10 can be discharged more quickly.
  • the mount 314 includes a tube body 3142 , a ring body 3143 and a connecting body 3144 .
  • the medium injection port 311 is provided in the pipe body 3142 , and the pipe body 3142 is used for connecting with the main body 313 .
  • the ring body 3143 is sleeved on the outside of the pipe body 3142 , and the connecting body 3144 is connected with the ring body 3143 through the connecting body 3144 .
  • An exhaust port 3141 is formed between the inner peripheral wall of the ring body 3143 and the outer peripheral wall of the pipe body 3142 .
  • the medium injection port 311 is disposed in the pipe body 3142, and an exhaust port 3141 is formed between the inner peripheral wall and the outer peripheral wall of the ring body 3143, so that the medium injection port 311 and the exhaust port 3141 are independent of each other.
  • the mounting member 314 of this structure can make the exhaust gas circumferentially distributed on the outer circumference of the medium injection port 311 , and the multiple outlets 3122 of the pressure relief port 312 are located on the outer circumference of the multiple inlets 3121 , so that the mounting member 314 is connected to the body 313 .
  • the medium injection port 311 located on the inner circumference corresponds to the multiple inlets 3121 located on the inner circumference
  • the exhaust port 3141 located on the outer circumference corresponds to the multiple outlets 3122 on the outer circumference.
  • the layout is reasonable, so that the medium injection port 311 is connected to the intake air
  • the port forms a straight channel for the fire-fighting medium to enter the box body 10
  • the outlet 3122 and the exhaust port 3141 form a straight channel for the gas in the box body 10 to be discharged.
  • the inner diameter of the ring body 3143 is larger than the outer diameter of the tube body 3142 , and the ring body 3143 and the tube body 3142 are coaxially disposed.
  • the number of connecting bodies 3144 connected between the ring body 3143 and the pipe body 3142 may be one or more.
  • the connecting bodies 3144 are a plurality of circumferentially distributed between the ring body 3143 and the tube body 3142 , so as to enhance the firmness of both the ring body 3143 and the tube body 3142 .
  • FIG. 6 is a cross-sectional view of the mounting member 314 shown in FIG. 5
  • the pipe body 3142 is a hollow structure with open ends
  • the medium injection port 311 is the hole inside the pipe body 3142 .
  • An axial end of the pipe body 3142 is provided with a boss 3145
  • the medium injection port 311 passes through the boss 3145
  • the boss 3145 is used for the mounting piece 314 to be connected with the main body 313 and then abut against the closing piece 32 fixed on the separator 3132
  • the closure member 32 is located between the boss 3145 and the partition body 3132 . After the closure member 32 is destroyed to open the medium injection port 311 and the pressure relief port 312 , the medium injection port 311 communicates with the inlet 3121 of the pressure relief port 312 .
  • the medium injection port 311 includes a plurality of docking holes 3111 of different diameters coaxially arranged for docking with the docking parts of the fire fighting device, so as to accommodate the docking parts of different diameters.
  • the fire gun when the fire gun is connected to the medium injection port 311 , the fire gun is partially inserted into the docking hole 3111 which is matched with it.
  • the plurality of docking holes 3111 form a stepped hole structure.
  • the medium injection port 311 further includes a connecting hole 3112 located in the boss 3145, the connecting hole 3112 is connected to the connecting hole 3111 with the smallest diameter among the plurality of connecting holes 3111, and the diameter of the connecting hole 3112 is smaller than that of the connecting hole 3111 with the smallest diameter. aperture.
  • the mounting member 314 is plug-fitted with the main body 313 to realize quick disassembly and assembly of the two.
  • the mounting member 314 is inserted into the body 313 , and the mounting member 314 may be inserted into the body 313 , or the body 313 may be inserted into the mounting member 314 .
  • the mounting member 314 is inserted into the body 313 to reduce the space outside the body 313 occupied by the mounting member 314 , so that the overall structure of the valve 30 is relatively compact.
  • the mounting member 314 is disposed coaxially with the body 313 .
  • the ring body 3143 of the mounting member 314 is inserted into the cylindrical body 3131 of the main body 313 .
  • the body 313 is provided with a plurality of supporting portions 3133 at intervals in the circumferential direction, and the supporting portions 3133 are used to support the outer peripheral surface of the mounting member 314 . That is to say, after the mounting member 314 is inserted into the main body 313 , each support portion 3133 will be supported on the outer peripheral surface of the mounting member 314 , so as to realize the positioning of the mounting member 314 and ensure that the mounting member 314 has a Very good stability.
  • the plurality of support portions 3133 are arranged on the inner side wall of the cylindrical body 3131 of the main body 313 at intervals in the circumferential direction. After the mounting member 314 is inserted into the body 313 , each support portion 3133 is supported on the outer peripheral surface of the ring body 3143 of the mounting member 314 .
  • FIG. 7 is a partial enlarged view of the body 313 shown in FIG. 4 .
  • the support portion 3133 includes a support surface 3133a and a guide slope 3133b connected to the support surface 3133a.
  • the guide slope 3133b is used to
  • the mount 314 is guided into the body 313 so that the support surface 3133 a is in contact with the outer peripheral surface of the mount 314 .
  • the guiding inclined surface 3133b of the support portion 3133 plays a good guiding role in the process of inserting the mounting piece 314 into the body 313, so that the mounting piece 314 can more easily enter into the body 313 and contact the supporting surface 3133a of the support portion 3133 s position.
  • the supporting surface 3133a is used for contacting with the outer peripheral surface of the ring body 3143 of the mounting member 314 .
  • FIG. 8 is a schematic structural diagram of a valve 30 provided in some other embodiments of the present application.
  • the valve 30 further includes a fixing member 33 , and the fixing member 33 is used for connecting with the valve body 31 to connect the valve to the valve body 31 .
  • the body 31 is fixed to the box body 10 .
  • FIG. 9 is a schematic diagram of the installation of the valve 30 and the box body 10 according to some embodiments of the application.
  • the fixing member 33 is detachably connected to the valve body 31 , and the fixing member 33 is used to cooperate with the valve body 31 .
  • the box wall 13 of the box body 10 is clamped to stabilize the valve body 31 on the box body 10 . If the fixing member 33 is connected with the valve body 31, the valve 30 is installed on the casing 10, and the fixing member 33 is removed from the valve body 31, and the valve body 31 can be removed from the casing 10, which is convenient for the valve 30 disassembly and installation.
  • the fixing member 33 is a nut
  • the body 313 of the valve body 31 is provided with an external thread
  • the box wall 13 of the box body 10 is provided with a mounting hole 131 for the body 313 to pass through, and the body 313 partially passes through the mounting hole 131
  • the fixing member 33 is screwed on the part of the body 313 provided with the external thread
  • the fixing member 33 is located on the inner side of the box wall 13
  • the part of the body 313 located on the outer side of the box wall 13 cooperates with the fixing member 33 to clamp the box wall of the box body 10 13 , so as to stabilize the valve body 31 on the box body 10 .
  • the fixing member 33 can also be other structures.
  • the fixing member 33 is a screw.
  • the box wall 13 of the box body 10 is provided with a through hole for the screw to pass through, and the fixing member 33 is screwed to the valve body 31 through the through hole.
  • the main body 313 of the valve body 31 is stabilized on the box body 10 .
  • valve 30 can also be fixed on the casing 10 by other means, for example, the body 313 of the valve 30 is directly screwed to the threaded hole on the casing 10 .
  • FIG. 10 is a flowchart of a method for manufacturing a valve 30 provided by some embodiments of the present application.
  • the method for manufacturing the valve 30 includes:
  • valve body 31 Provides a valve body 31, the valve body 31 is provided with a medium injection port 311 for connecting with a fire fighting device, and the valve body 31 is used to be installed in the box body 10;
  • the closure member 32 is configured to open the medium injection port 311 when the internal pressure or temperature of the box body 10 reaches a threshold value, so as to release the pressure inside the box body 10 and allow the fire fighting device to enter the box body 10 through the medium injection port 311 Inject fire-fighting medium.
  • valve 30 For the relevant structure of the valve 30 manufactured by the above-mentioned manufacturing method, reference may be made to the valve 30 provided in the above-mentioned embodiments.
  • FIG. 11 is a schematic block diagram of an apparatus 2000 for manufacturing the valve 30 according to some embodiments of the present application.
  • the first providing device 2100 is used to provide the valve body 31
  • the valve body 31 is provided with a medium injection port 311 for connecting with the fire fighting device
  • the valve body 31 is used to be installed on the box body 10 .
  • the second providing device 2200 is used to provide the closure 32 .
  • the assembling device 2300 is used to connect the closure member 32 to the valve body 31 , so that the closure member 32 closes the medium injection port 311 .
  • the closure member 32 is configured to open the medium injection port 311 when the internal pressure or temperature of the box body 10 reaches a threshold value, so as to release the pressure inside the box body 10 and allow the fire fighting device to enter the box body 10 through the medium injection port 311 Inject fire-fighting medium.
  • valve 30 manufactured by the above-mentioned manufacturing apparatus 2000, reference may be made to the valve 30 provided in the above-mentioned embodiments.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

本申请实施例提供了一种阀、电池、用电设备、阀的制造设备和方法，属于电池技术领域。阀包括阀体和封闭件，阀体用于安装于箱体，阀体上设有用于与消防装置连接的介质注入口。封闭件连接于阀体并封闭介质注入口，封闭件被配置为在箱体的内部压力或温度达到阈值时打开介质注入口，以泄放箱体内部的压力，并允许消防装置通过介质注入口向箱体内注入消防介质。消防装置可与介质注入口连接，消防装置提供的消防介质可通过介质注入口进入到箱体内，以对箱体内的电池单体进行冷却降温，降低箱体内部的电池单体发生大面积热扩散的风险，从而快速有效地控制箱体内部的火情，降低火灾带来的经济损失。

Description

阀、电池、用电设备、阀的制造设备和方法 技术领域
本申请涉及电池技术领域，具体而言，涉及一种阀、电池、用电设备、阀的制造设备和方法。
背景技术
目前，车辆使用较多的电池一般是锂离子电池，锂离子电池作为一种可再充电电池，具有体积小、能量密度高、功率密度高、循环使用次数多和存储时间长等优点。
电池一般包括箱体和容纳于箱体内的电池单体(可再充电电池)，箱体可为电池单体提供密封环境，避免液体或异物影响电池单体的充电或放电。对于一般的电池而言，在电池内部的电池单体热失控时，不易控制火情。
发明内容
本申请实施例提供一种阀、电池、用电设备、阀的制造设备和方法，以改善电池内部的电池单体热失控时不易控制火情的问题。
第一方面，本申请实施例提供一种阀，包括阀体和封闭件；所述阀体用于安装于箱体，所述阀体上设有用于与消防装置连接的介质注入口；所述封闭件连接于所述阀体并封闭所述介质注入口，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述介质注入口，以泄放所述箱体内部的压力，并允许所述消防装置通过所述介质注入口向所述箱体内注入消防介质。
上述方案中，介质注入口可与消防装置连接，以便于通过消防装置向箱体内注入消防介质。在箱体内的电池单体热失控使箱体的内部压力或温度达到阈值时，封闭件打开介质注入口，可通过介质注入口泄放箱体内的压力。介质注入口被打开后，可将消防装置与介质注入口连接，消防装置提供的消防介质可通过介质注入口进入到箱体内，以对箱体内的电池单体进行冷却降温，降低箱体内部的电池单体发生大面积热扩散的风险，从而快速有效地控制箱体内部的火情，降低火灾带来的经济损失。
在一些实施例中，所述阀体上设有泄压口，所述封闭件封闭所述泄压口，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述泄压口和所述介质注入口，以泄放所述箱体内部的压力。
上述方案中，阀体上还设有泄压口，通过封闭件可打开泄压口和介质注入口。封闭件打开泄压口和介质注入口后，可通过泄压口和介质注入口来泄放箱体内部的压力，消防装置提供的消防介质也可以依次通过介质注入口和泄压口进入到箱体内，以控制箱体内部的火情。
在一些实施例中，所述阀体包括本体和安装件；所述泄压口设于所述本体，所述封闭件连接于所述本体；安装件安装于所述本体，所述介质注入口设于所述安装件。
上述方案中，阀体为分体式结构，结构简单，便于布置封闭件。由于介质注入口设置于安装件上，安装件为与消防装置连接的元件，根据需求可对安装件进行更换。
在一些实施例中，所述泄压口包括进口和出口；所述进口用于在所述封闭件打开所述泄压口和所述介质注入口时与所述介质注入口连通；所述出口用于在所述消防介质依次通过所述介质注入口和所述进口进入所述箱体内时排放所述箱体内的气体。
上述方案中，进口和出口属于泄压口的一部分，在泄放箱体内部的压力时，箱体内的排放物可通过进口和出口排出于箱体外。在封闭件打开泄压口和介质注入口时，进口与介质注入口连通，消防装置提供的消防介质可依次通过介质注入口和进口进入到箱体内，与此同时，箱体内的气体则可通过出口排出至箱体外，以达到平衡箱体内外压力的目的，降低箱体内部压力逐渐增大，而导致消防装置提供的消防介质不易进入到箱体内的风险。
在一些实施例中，所述泄压口包括周向间隔分布的多个所述进口和周向间隔分布的多个所述出口；多个所述出口位于所述多个所述进口的外周。
上述方案中，泄压口中，进口和出口均为周向间隔分布的多个，使得消防介质能够通过多个进口更为快速地进入到箱体内，箱体内的气体能够通过多个出口更为快速地排出至箱体外。多个出口位于多个进口的外周，排布合理，在消防介质不断地进入到箱体内的过程中，更利于箱体内的气体通过多个出口排出至箱体外。
在一些实施例中，所述安装件上设有与所述介质注入口彼此独立的排气口；当所述封闭件打开所述泄压口和所述介质注入口时，所述气体能够依次通过所述出口和所述排气口排放至所述箱体外。
上述方案中，安装件上设有与介质注入口彼此独立的排气口，排气口的设置可降低安装件安装于本体上后对出口的阻挡作用，使得箱体内的气体可依次通过出口和排气口排放至箱体外，提高气体排出至箱体外的顺畅性，使得箱体内的气体能够更为快速地排出。
在一些实施例中，所述安装件包括管体、环体和连接体；所述介质注入口设于所述管体内，所述管体用于与本体连接；所述环体套设于所述管体外；所述连接体所述管体与所述环体通过所述连接体连接；所述环体的内周壁与所述管体的外周壁之间形成所述排气口。
上述方案中，介质注入口设置于管体内，环体的内周壁与外周壁之间形成排气口，从而使得介质注入口与排气口彼此独立。这种安装件的结构简单，易于成型制造。
在一些实施例中，所述安装件与所述本体插接配合。
上述方案中，安装件与本体插接配合，可实现两者的快速拆装。
在一些实施例中，所述安装件插接于所述本体内。
上述方案中，安装件插接于本体，可减小安装件所占用的本体以外的空间，使得 阀的整体结构较为紧凑。
在一些实施例中，所述本体内周向间隔设置有多个支撑部，所述支撑部用于支撑于所述安装件的外周面。
上述方案中，本体内周向间隔设置有用于支撑于安装件的外周面的多个支撑部，也就是说，安装件插接于本体内后，各个支撑部将支撑于安装件的外周面，从而实现对安装件的定位，保证安装件插接于本体内后具有很好的稳定性。
在一些实施例中，所述支撑部包括支撑面和与所述支撑面相连的引导斜面；
所述引导斜面用于将所述安装件引导至所述本体内，以使所述支撑面与所述安装件的外周面接触。
上述方案中，支撑部的引导斜面对安装件在插入本体内的过程中起到很好的引导作用，使得安装件能够更容易地进入到本体内并与支撑部的支撑面接触的位置。
在一些实施例中，所述消防装置具有对接部，所述介质注入口包括用于与所述对接部对接的同轴布置的不同直径的多个对接孔。
上述方案中，不同直径的多个对接孔可适用于不同直径的对接部，不同直径的对接部均能够与介质注入口对接。
在一些实施例中，所述阀还包括固定件，所述固定件用于与所述阀体连接，以将所述阀体稳固于所述箱体。
上述方案中，通过固定件可将阀体稳固在箱体上。
在一些实施例中，所述固定件与所述阀体可拆卸连接，所述固定件用于与所述阀体配合夹持所述箱体的箱壁。
上述方案中，固定件与箱体配合夹持箱体的箱壁，则可将阀体稳固于箱体上。固体件与阀体可拆卸连接，将固定件与阀体连接在一起，则将阀安装于箱体，将固定件从阀体上卸下，则可将阀体从箱体上卸下，便于阀的拆卸与安装。
第二方面，本申请实施例提供一种电池，包括箱体、电池单体和第一方面任意一个实施例提供的阀；所述电池单体容纳于所述箱体内；所述阀体安装于所述箱体。
上述方案中，通过具有泄压功能的阀可向箱体内注入消防介质，以对箱体内的电池单体进行冷却降温，降低箱体内部的电池单体发生大面积热扩散的风险，从而快速有效地控制箱体内部的火情，降低火灾带来的经济损失。
第三方面，本申请实施例提供一种用电设备，包括第二方面任意一个实施例提供的电池。
第四方面，本申请实施例提供一种阀的制造方法，包括：提供阀体，所述阀体上设有用于与消防装置连接的介质注入口，所述阀体用于安装于箱体；提供封闭件；将所述封闭件连接于所述阀体，使所述封闭件封闭所述介质注入口；其中，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述介质注入口，以泄放所述箱体内部的压力，并允许所述消防装置通过所述介质注入口向所述箱体内注入消防介质。
第五方面，本申请实施例还提供一种阀的制造设备，包括第一提供装置、第二提供装置和组装装置；第一提供装置用于提供阀体，所述阀体上设有用于与消防装置连接的介质注入口，所述阀体用于安装于箱体；第二提供装置用于提供封闭件；组装装置用于将所述封闭件连接于所述阀体，使所述封闭件封闭所述介质注入口；其中，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述介质注入口，以泄放所述箱体内部的压力，并允许所述消防装置通过所述介质注入口向所述箱体内注入消防介质。
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为本申请一些实施例提供的车辆的结构示意图；
图2为本申请一些实施例提供的电池的爆炸图；
图3为本申请一些实施例提供的阀的结构示意图；
图4为图3所示的阀的爆炸图；
图5为图4所示的安装件的结构示意图；
图6为图5所示的安装件的剖视图；
图7为图4所示的本体的局部放大图；
图8为本申请又一些实施例提供的阀的结构示意图；
图9为本申请一些实施例提供的阀与箱体的安装示意图；
图10为本申请一些实施例提供的阀的制造方法的流程图；
图11为本申请一些实施例提供的阀的制造设备的示意性框图；
在附图中，附图并未按照实际的比例绘制。
标记说明：10-箱体；11-第一部分；12-第二部分；13-箱壁；131-安装孔；20-电池单体；30-阀；31-阀体；311-介质注入口；3111-对接孔；3112-连接孔；312-泄压口；3121-进口；3122-出口；313-本体；3131-筒体；3132-分隔体；3133-支撑部；3133a-支撑面；3133b-引导斜面；314-安装件；3141-排气口；3142-管体；3143-环体；3144-连接体；3145-凸台；32-封闭件；33- 固定件；40-汇流部件；100-电池；200-控制器；300-马达；1000-车辆；2000-制造设备；2100-第一提供装置；2200-第二提供装置；2300-组装装置。
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。
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、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，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正极集流体凸出于已涂覆正极活性物质层的正极集流体，未涂敷正极活性物质层的正极集流体作为正极极耳。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负极集流体凸出于已涂覆负极活性物质层的负极集流体，未涂敷负极活性物质层的负极集流体作为负极极耳。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。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。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。
目前，电池一般包括箱体和容纳于箱体内的电池单体，箱体为电池单体提供密封环境。为保证电池的安全性，在箱体上设有防爆阀，防爆阀在电池单体热失控时泄放箱体内部的压力。
发明人发现，电池内部的电池单体热失控时，由于电池单体位于箱体内，消防介质只能作用于箱体外部，消防介质无法进入到箱体内，灭火效果 差，不易控制火情。
鉴于此，本申请实施例提供一种技术方案，阀体上设有用于与消防装置连接的介质注入口，封闭件连接于阀体并封闭介质注入口，封闭件被配置为在箱体的内部压力或温度达到阈值时打开介质注入口，以泄放箱体内部的压力，并允许消防装置通过介质注入口向箱体内注入消防介质。在箱体内的电池单体热失控使封闭件打开介质注入口后，消防介质可通过介质注入口进入到箱体内，以对箱体内的电池单体进行冷却降温，降低箱体内部的电池单体发生大面积热扩散的风险，从而快速有效地控制箱体内部的火情，降低火灾带来的经济损失。
本申请实施例描述的技术方案适用于电池以及使用电池的用电设备。
用电设备可以是车辆、手机、便携式设备、笔记本电脑、轮船、航天器、电动玩具和电动工具等等。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设备不做特殊限制。
以下实施例为了方便说明，以用电设备为车辆为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源。
车辆1000还可以包括控制器200和马达300，控制器200用来控制电池100为马达300供电，例如，用于车辆1000的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池100不仅仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气 为车辆1000提供驱动动力。
请参照图2，图2为本申请一些实施例提供的电池100的爆炸图，电池100包括箱体10、电池单体20和阀30，电池单体20容纳于箱体10内，阀体31安装于箱体10上。
箱体10用于容纳电池单体20，以为电池单体20提供密封环境，箱体10可以是多种形状，比如，长方体、圆柱体等。在图2中，示例性的，箱体10为长方体。
在一些实施例中，箱体10包括第一部分11和第二部分12，第一部分11与第二部分12相互盖合。第一部分11可以是一侧开口的空心结构，第二部分12也可以是一侧开口的空心结构，第二部分12的开口侧盖合于第一部分11的开口侧，则形成用于容纳电池单体20的箱体10。
在实际使用时，可以是第二部分12位于第一部分11的顶部，第一部分11又可称为下箱体10，第二部分12又可称为上箱体10。
需要说明的是，阀30可以安装于箱体10的第一部分11，也可以布置于箱体10的第二部分12。在图2中，示例性的，阀30安装于第二部分12。
箱体10内部的电池单体20可以是一个、也可以是多个。若电池单体20为多个，多个电池单体20之间可串联或并联或混联，混联是指多个电池单体20中既有串联又有并联。多个电池单体20之间可直接串联或并联或混联在一起，再将多个电池单体20构成的整体容纳于箱体10内；当然，也可以是多个电池单体20先串联或并联或混联组成电池100模块，多个电池100模块再串联或并联或混联形成一个整体，并容纳于箱体10内。电池单体20可呈圆柱体、扁平体、长方体或其它形状等。
在一些实施例中，电池100还可以包括汇流部件40，多个电池单体20之间可通过汇流部件40实现电连接，以实现多个电池单体20的串联或并联或混联。
在电池100中，箱体10上的阀30可以是一个，也可以是多个。在图2中，示例性的，箱体10上设有两个阀30。
请参照图3，图3为本申请一些实施例提供的阀30的结构示意图；阀 30包括阀体31和封闭件32。阀体31用于安装于箱体10，阀体31上设有用于与消防装置(图未示出)连接的介质注入口311；封闭件32连接于阀体31并封闭介质注入口311，封闭件32被配置为在箱体10的内部压力或温度达到阈值时打开介质注入口311，以泄放箱体10内部的压力，并允许消防装置通过介质注入口311向箱体10内注入消防介质。
介质注入口311可与消防装置连接，以便于通过消防装置向箱体10内注入消防介质。在箱体10内的电池单体20热失控使箱体10的内部压力或温度达到阈值时，封闭件32打开介质注入口311，可通过介质注入口311泄放箱体10内的压力。介质注入口311被打开后，可将消防装置与介质注入口311连接，消防装置提供的消防介质可通过介质注入口311进入到箱体10内，以对箱体10内的电池单体20进行冷却降温，降低箱体10内部的电池单体20发生大面积热扩散的风险，从而快速有效地控制箱体10内部的火情，降低火灾带来的经济损失。
由上述内容可知，本申请实施例提供的阀30具有两个功能，一是，当箱体10的内部压力或温度达到阈值时泄放箱体10内部的压力，降低因箱体10内部压力过大而爆炸的风险；二是，在介质注入口311被打开后，消防装置可以与介质注入口311连接，阀30起到连通消防装置和箱体10的作用，使得消防介质提供的消防介质可以通过阀30进入到箱体10内。
在本申请实施例中，在箱体10的内部压力或温度达到阈值时，封闭件32打开介质注入口311。封闭件32也可以是以相对阀体31运动的方式打开介质注入口311，比如，封闭件32为移动板，封闭件32可移动地设置于阀体31，箱体10的内部压力或温度达到阈值时，封闭件32在驱动机构的作用下移动，从而打开介质注入口311。封闭件32也可以是以被破坏的方式打开介质注入口311，比如，如图3所示，封闭件32为防爆膜，防爆膜可以是在箱体10的内部压力的作用下被破坏，也可以是在高温环境下被熔化而被破坏，从而打开介质注入口311。
在本申请实施例中，消防介质可以是能够冷却降温、灭火的介质，消防介质可以是气体，比如、惰性气体、二氧化碳气体，消防介质也可以是液体，比如，水。
消防装置为提供消防介质的设备，其可以是多种结构，本申请实施例 对此不作限定。示例性的，消防装置具有用于与介质注入口311对接的对接部(图未示出)。对接部可以是消防枪，消防枪用于与介质注入口311连接，从消防枪内喷出的消防介质可通过介质注入口311进入到箱体10内。
在一些实施例中，请参照图4，图4为图3所示的阀30的爆炸图，阀体31上还设有泄压口312，封闭件32封闭泄压口312，封闭件32被配置为在箱体10的内部压力或温度达到阈值时打开泄压口312和介质注入口311，以泄放箱体10内部的压力。
通过封闭件32可打开泄压口312和介质注入口311，封闭件32打开泄压口312和介质注入口311后，可通过泄压口312和介质注入口311来泄放箱体10内部的压力，消防装置提供的消防介质也可以依次通过介质注入口311和泄压口312进入到箱体10内，以控制箱体10内部的火情。
需要说明的是，封闭件32封闭泄压口312是指，在封闭件32未被破坏的情况下，外界物质(尘埃颗粒、消防介质等)无法通过泄压口312进入到箱体10内，同样，封闭件32封闭介质注入口311是指，在封闭件32未被破坏的情况下，外界物质(尘埃颗粒、消防介质等)无法通过介质注入口311进入到箱体10内。
阀体31可以是整体式结构，也可以是分体式结构。
在一些实施例中，阀体31为分体式结构，阀体31包括本体313和安装件314，泄压口312设于本体313，封闭件32连接于本体313，安装件314安装于本体313，介质注入口311设于安装件314。这种阀体31结构简单，便于布置封闭件32，根据需求可对安装件314进行更换。
在一些实施例中，泄压口312包括进口3121和出口3122，进口3121用于在封闭件32打开泄压口312和介质注入口311时与介质注入口311连通，出口3122用于在消防介质依次通过介质注入口311和进口3121进入箱体10内时排放箱体10内的气体。
进口3121和出口3122属于泄压口312的一部分，在泄放箱体10内部的压力时，箱体10内的排放物可通过进口3121和出口3122排出于箱体10外。在封闭件32打开泄压口312和介质注入口311时，进口3121与介质注入口311连通，消防装置提供的消防介质可依次通过介质注入口311和进 口3121进入到箱体10内，与此同时，箱体10内的气体则可通过出口3122排出至箱体10外，以达到平衡箱体10内外压力的目的，降低箱体10内部压力逐渐增大，而导致消防装置提供的消防介质不易进入到箱体10内的风险。
泄压口312中的进口3121和出口3122可以是一个，也可以是多个。
在一些实施例中，如图4所示，泄压口312包括周向间隔分布的多个进口3121和周向间隔分布的多个出口3122，多个出口3122位于多个进口3121的外周。
进口3121和出口3122均为周向间隔分布的多个，使得消防介质能够通过多个进口3121更为快速地进入到箱体10内，箱体10内的气体能够通过多个出口3122更为快速地排出至箱体10外。多个出口3122位于多个进口3121的外周，排布合理，在消防介质不断地进入到箱体10内的过程中，更利于箱体10内的气体通过多个出口3122排出至箱体10外。
上述所指的多个出口3122位于多个进口3121的外周，可理解的，在径向上出口3122位于进口3121的外侧。以多个出口3122以第一圆周分布，多个进口3121以第二圆周分布，且第一圆周与第二圆周同心布置为例，在第一圆周和第二圆周的径向上，出口3122位于进口3121的外侧，进口3121较出口3122更靠近于第一圆周和第二圆周的圆心。在图4中，示例性的，泄压口312中的进口3121和出口3122均为四个。
示例性的，本体313包括筒体3131和分隔体3132，筒体3131为轴向两端开放的空心结构，分隔体3132固设于筒体3131内，分隔体3132呈板状结构，泄压口312设置于分隔体3132上。以封闭件32为防爆膜为例，封闭件32可固定于分隔体3132上，以封闭泄压口312的进口3121和出口3122。在箱体10的内部压力或温度达到阈值时，封闭件32被破坏，从而打开进口3121和出口3122。
需要说明的是，在其他实施例中，泄压口312中也可以只有进口3121，箱体10泄放压力通过进口3121进行泄压，消防介质也通过进口3121进入到箱体10内。
在一些实施例中，请参照图5，图5为图4所示的安装件314的结构 示意图，安装件314上设有与介质注入口311彼此独立的排气口3141。当封闭件32打开泄压口312和介质注入口311时，气体能够依次通过出口3122和排气口3141排放至箱体10外。
安装件314上的排气口3141的设置可降低安装件314安装于本体313上后对出口3122的阻挡作用，使得箱体10内的气体可依次通过出口3122和排气口3141排放至箱体10外，提高气体排出至箱体10外的顺畅性，使得箱体10内的气体能够更为快速地排出。
在一些实施例中，安装件314包括管体3142、环体3143和连接体3144。介质注入口311设于管体3142内，管体3142用于与本体313连接。环体3143套设于管体3142外，连接体3144管体3142与环体3143通过连接体3144连接。环体3143的内周壁与管体3142的外周壁之间形成排气口3141。
介质注入口311设置于管体3142内，环体3143的内周壁与外周壁之间形成排气口3141，从而使得介质注入口311与排气口3141彼此独立。这种结构的安装件314可使排气周向分布于介质注入口311的外周，与泄压口312的多个出口3122位于多个进口3121的外周相适配，使得安装件314与本体313连接后，位于内周的介质注入口311与位于内周的多个进口3121相对应，位于外周的排气口3141与外周多个出口3122相对应，布局合理，使得介质注入口311与进气口形成供消防介质进入箱体10的直通通道，出口3122与排气口3141形成用于供箱体10内的气体排出的直通通道。
示例性的，环体3143的内径大于管体3142的外径，环体3143与管体3142同轴设置。
连接于环体3143与管体3142之间的连接体3144可以是一个也可以是多个。在图5中，示例性的，连接体3144为圆周分布于环体3143与管体3142之间的多个，以增强环体3143与管体3142两者的牢固性。
示例性的，请参照图6，图6为图5所示的安装件314的剖视图，管体3142为两端开放的空心结构，介质注入口311即为管体3142内部的孔道。管体3142轴向的一端设有凸台3145，介质注入口311贯通凸台3145，凸台3145用于安装件314与本体313连接后抵靠于固定于分隔体3132上的封闭件32上，封闭件32位于凸台3145与分隔体3132之间，封闭件32被 破坏而打开介质注入口311和泄压口312后，介质注入口311与泄压口312的进口3121连通。
在一些实施例中，介质注入口311包括用于与消防装置的对接部对接的同轴布置的不同直径的多个对接孔3111，以适应不同直径的对接部。
以对接部为消防枪为例，消防枪在于介质注入口311连接时，消防枪局部插设于与之适配的对接孔3111内。
多个对接孔3111形成阶梯孔结构。示例性的，介质注入口311还包括位于凸台3145内的连接孔3112，连接孔3112与多个对接孔3111中直径最小的对接孔3111相连，连接孔3112的孔径小于直径最小的对接孔3111的孔径。
在一些实施例中，安装件314与本体313插接配合，以实现两者的快速拆装。
安装件314与本体313插接配合，可以是安装件314插接于本体313内，也可以是本体313插接于安装件314内。
在一些实施例中，请继续参照图4，安装件314插接于本体313内，以减小安装件314所占用的本体313以外的空间，使得阀30的整体结构较为紧凑。
示例性的，安装件314与本体313同轴设置。
其中，安装件314的环体3143插接于本体313的筒体3131内。
在一些实施例中，本体313内周向间隔设置有多个支撑部3133，支撑部3133用于支撑于安装件314的外周面。也就是说，安装件314插接于本体313内后，各个支撑部3133将支撑于安装件314的外周面，从而实现对安装件314的定位，保证安装件314插接于本体313内后具有很好的稳定性。
其中，多个支撑部3133周向间隔设置于本体313的筒体3131的内侧壁上。安装件314插接于本体313内后，各个支撑部3133支撑于安装件314的环体3143的外周面。
在一些实施例中，请参照图7，图7为图4所示的本体313的局部放 大图，支撑部3133包括支撑面3133a和与支撑面3133a相连的引导斜面3133b，引导斜面3133b用于将安装件314引导至本体313内，以使支撑面3133a与安装件314的外周面接触。
支撑部3133的引导斜面3133b对安装件314在插入本体313内的过程中起到很好的引导作用，使得安装件314能够更容易地进入到本体313内并与支撑部3133的支撑面3133a接触的位置。
其中，支撑面3133a用于与安装件314的环体3143的外周面接触。
在一些实施例中，请参照图8，图8为本申请又一些实施例提供的阀30的结构示意图，阀30还包括固定件33，固定件33用于与阀体31连接，以将阀体31稳固于箱体10。
可选地，请参照图9，图9为本申请一些实施例提供的阀30与箱体10的安装示意图，固定件33与阀体31可拆卸连接，固定件33用于与阀体31配合夹持箱体10的箱壁13，以将阀体31稳固于箱体10上。将固定件33与阀体31连接在一起，则将阀30安装于箱体10，将固定件33从阀体31上卸下，则可将阀体31从箱体10上卸下，便于阀30的拆卸与安装。
示例性的，固定件33为螺母，阀体31的本体313上设有外螺纹，箱体10的箱壁13上设有供本体313穿过的安装孔131，本体313局部穿过安装孔131，固定件33螺接于本体313上设置有外螺纹的部分，固定件33位于箱壁13的内侧，本体313位于箱壁13的外侧的部分与固定件33配合夹持箱体10的箱壁13，从而将阀体31稳固于箱体10。
当然，固定件33也可以是其他结构，比如，固定件33为螺钉，箱体10的箱壁13上设有供螺钉穿过的通孔，固定件33穿过通孔螺接于阀体31的本体313，从而将阀体31稳固于箱体10。
在其他实施例中，阀30也可通过其他方式固定于箱体10上，比如，阀30的本体313直接螺接于箱体10上的螺纹孔上。
请参照图10，图10为本申请一些实施例提供的阀30的制造方法的流程图，阀30的制造方法包括：
S100：提供阀体31，阀体31上设有用于与消防装置连接的介质注入口311，阀体31用于安装于箱体10；
S200：提供封闭件32；
S300：将封闭件32连接于阀体31，使封闭件32封闭介质注入口311。
其中，封闭件32被配置为在箱体10的内部压力或温度达到阈值时打开介质注入口311，以泄放箱体10内部的压力，并允许消防装置通过介质注入口311向箱体10内注入消防介质。
通过上述制造方法所制造出的阀30的相关结构，可参见上述各实施例提供的阀30。
请参照图11，图11为本申请一些实施例提供的阀30的制造设备2000的示意性框图，制造设备2000包括第一提供装置2100、第二提供装置2200和组装装置2300。
第一提供装置2100用于提供阀体31，阀体31上设有用于与消防装置连接的介质注入口311，阀体31用于安装于箱体10。第二提供装置2200用于提供封闭件32。组装装置2300用于将封闭件32连接于阀体31，使封闭件32封闭介质注入口311。
其中，封闭件32被配置为在箱体10的内部压力或温度达到阈值时打开介质注入口311，以泄放箱体10内部的压力，并允许消防装置通过介质注入口311向箱体10内注入消防介质。
通过上述制造设备2000制造出的阀30的相关结构，可参见上述各实施例提供的阀30。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
以上实施例仅用以说明本申请的技术方案，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (18)

  1. 一种阀，包括：
    阀体，用于安装于箱体，所述阀体上设有用于与消防装置连接的介质注入口；以及
    封闭件，连接于所述阀体并封闭所述介质注入口，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述介质注入口，以泄放所述箱体内部的压力，并允许所述消防装置通过所述介质注入口向所述箱体内注入消防介质。
  2. 根据权利要求1所述的阀，其中，所述阀体上设有泄压口，所述封闭件封闭所述泄压口，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述泄压口和所述介质注入口，以泄放所述箱体内部的压力。
  3. 根据权利要求2所述的阀，其中，所述阀体包括：
    本体，所述泄压口设于所述本体，所述封闭件连接于所述本体；
    安装件，安装于所述本体，所述介质注入口设于所述安装件。
  4. 根据权利要求3所述的阀，其中，所述泄压口包括进口和出口；
    所述进口用于在所述封闭件打开所述泄压口和所述介质注入口时与所述介质注入口连通；
    所述出口用于在所述消防介质依次通过所述介质注入口和所述进口进入所述箱体内时排放所述箱体内的气体。
  5. 根据权利要求4所述的阀，其中，所述泄压口包括周向间隔分布的多个所述进口和周向间隔分布的多个所述出口；
    多个所述出口位于所述多个所述进口的外周。
  6. 根据权利要求4或5所述的阀，其中，所述安装件上设有与所述介质注入口彼此独立的排气口；
    当所述封闭件打开所述泄压口和所述介质注入口时，所述气体能够依次通过所述出口和所述排气口排放至所述箱体外。
  7. 根据权利要求6所述的阀，其中，所述安装件包括：
    管体，所述介质注入口设于所述管体内，所述管体用于与本体连接；
    环体，套设于所述管体外；以及
    连接体，所述管体与所述环体通过所述连接体连接；
    其中，所述环体的内周壁与所述管体的外周壁之间形成所述排气口。
  8. 根据权利要求3-7任一项所述的阀，其中，所述安装件与所述本体插接配合。
  9. 根据权利要求8所述的阀，其中，所述安装件插接于所述本体内。
  10. 根据权利要求9所述的阀，其中，所述本体内周向间隔设置有多个支撑部，所述支撑部用于支撑于所述安装件的外周面。
  11. 根据权利要求10所述的阀，其中，所述支撑部包括支撑面和与所述支撑面相连的引导斜面；
    所述引导斜面用于将所述安装件引导至所述本体内，以使所述支撑面与所述安装件的外周面接触。
  12. 根据权利要求1-11任一项所述的阀，其中，所述消防装置具有对接部，所述介质 注入口包括用于与所述对接部对接的同轴布置的不同直径的多个对接孔。
  13. 根据权利要求1-12任一项所述的阀，其中，所述阀还包括：
    固定件，用于与所述阀体连接，以将所述阀体稳固于所述箱体。
  14. 根据权利要求13所述的阀，其中，所述固定件与所述阀体可拆卸连接，所述固定件用于与所述阀体配合夹持所述箱体的箱壁。
  15. 一种电池，包括：
    箱体；
    电池单体，容纳于所述箱体内；以及
    根据权利要求1-14任一项所述的阀，所述阀体安装于所述箱体。
  16. 一种用电设备，包括权利要求15所述的电池。
  17. 一种阀的制造方法，包括：
    提供阀体，所述阀体上设有用于与消防装置连接的介质注入口，所述阀体用于安装于箱体；
    提供封闭件；
    将所述封闭件连接于所述阀体，使所述封闭件封闭所述介质注入口；
    其中，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述介质注入口，以泄放所述箱体内部的压力，并允许所述消防装置通过所述介质注入口向所述箱体内注入消防介质。
  18. 一种阀的制造设备，包括：
    第一提供装置，用于提供阀体，所述阀体上设有用于与消防装置连接的介质注入口，所述阀体用于安装于箱体；
    第二提供装置，用于提供封闭件；以及
    组装装置，用于将所述封闭件连接于所述阀体，使所述封闭件封闭所述介质注入口；
    其中，所述封闭件被配置为在所述箱体的内部压力或温度达到阈值时打开所述介质注入口，以泄放所述箱体内部的压力，并允许所述消防装置通过所述介质注入口向所述箱体内注入消防介质。
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