WO2023077848A1 - 一种定向排气装置、电池及储能预制仓 - Google Patents

一种定向排气装置、电池及储能预制仓 Download PDF

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Publication number
WO2023077848A1
WO2023077848A1 PCT/CN2022/104010 CN2022104010W WO2023077848A1 WO 2023077848 A1 WO2023077848 A1 WO 2023077848A1 CN 2022104010 W CN2022104010 W CN 2022104010W WO 2023077848 A1 WO2023077848 A1 WO 2023077848A1
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WO
WIPO (PCT)
Prior art keywords
exhaust
battery
directional
exhaust part
installation
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/CN2022/104010
Other languages
English (en)
French (fr)
Inventor
刘越
王增忠
郑陈铃
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 EP22888883.0A priority Critical patent/EP4280365B1/en
Publication of WO2023077848A1 publication Critical patent/WO2023077848A1/zh
Priority to US18/368,030 priority patent/US20230420794A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • H01M50/358—External gas exhaust passages located on the battery cover or case
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • 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
    • H01M50/317—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
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
    • 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
    • H01M2200/20—Pressure-sensitive devices
    • 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 technical field of energy storage equipment, in particular to a directional exhaust device, a battery and a prefabricated energy storage bin.
  • the battery placed in the energy storage bin is likely to cause the breakdown of the battery diaphragm and internal short circuit, resulting in thermal runaway. After thermal runaway occurs, the battery will produce a large amount of flammable gas, which can easily cause deflagration and explosion, which will affect the safe use of the energy storage bin and cause huge losses.
  • the present application provides a directional exhaust device, a battery and a prefabricated energy storage bin.
  • the directional exhaust device can improve the safety and service life of the prefabricated energy storage bin.
  • the present application provides a directional exhaust device.
  • the directional exhaust device includes at least a first exhaust part and a second exhaust part.
  • the first exhaust part is used to communicate with the pressure relief device of the battery.
  • the gas part communicates with the first exhaust part and the outside, so as to discharge the gas generated by the battery through the pressure relief device, the first exhaust part and the second exhaust part.
  • a large amount of combustible gas generated by the battery during thermal runaway enters the first exhaust part through the pressure relief device, and is directly discharged to the outside through the first exhaust part and the second exhaust part, thereby preventing the combustible gas discharged from the pressure relief device from entering The battery compartment, thereby preventing the deflagration and explosion caused by the high concentration of combustible gas in the battery compartment, and improving the safety and service life of the prefabricated energy storage compartment.
  • the first exhaust part is provided with a first installation part, and the first installation part extends in a direction away from the first exhaust part along the radial direction of the first exhaust part; the first installation part is pressed against the first exhaust part.
  • the first installation part is pressed against the second exhaust part so that the combustible gas discharged to the outside through the first exhaust part and the second exhaust part will not enter the battery compartment from the position where the first installation part and the second exhaust part are connected In order to prevent the deflagration and explosion of the battery compartment caused by combustible gas.
  • the first installation part and the second exhaust part are sealed by a first seal to further prevent the combustible gas discharged to the outside through the first exhaust part and the second exhaust part from entering the first installation part.
  • the place connected to the second exhaust part leaks into the battery compartment, causing deflagration and explosion of the battery compartment, thereby improving the reliability and safety of the directional exhaust device.
  • the first sealing member is soft glue or a gasket. Both the soft rubber and the sealing gasket have good sealing performance, and the soft rubber or the sealing gasket can be selected as the first sealing member according to the actual situation when installing the directional exhaust device.
  • the directional exhaust device further includes a second installation part connected to the second exhaust part; the first exhaust part is sleeved on the inner wall or the outer wall of the second installation part.
  • the second installation part can increase the length of the directional exhaust device, so that the directional exhaust device can be applied to the situation where the distance between the battery box and the outside is relatively long, and the usage scenarios of the directional exhaust device are increased.
  • the first exhaust part is sleeved on the inner wall or outer wall of the second installation part so that the contact area between the second installation part and the first exhaust part is larger, and the combustible gas flowing through the first exhaust part and the second exhaust part It is difficult for gas to leak through the connection place between the second installation part and the first exhaust part, thereby improving the sealing performance of the directional exhaust device.
  • the first exhaust part and the second installation part are sealed by a second sealing member.
  • the second seal can seal the part where the first exhaust part and the second installation part are connected, and prevent the combustible gas flowing to the outside through the first exhaust part, the second installation part and the second exhaust part from the first exhaust part and the second installation part.
  • the place where the second installation part is connected leaks into the battery compartment, causing deflagration and explosion of the battery compartment, thereby improving the reliability and safety of the directional exhaust device.
  • the second seal is located on the first contact surface and/or or the second contact surface.
  • the second exhaust part and the second installation part are detachably connected or the second exhaust part and the second installation part are integrated.
  • the detachable connection between the second installation part and the second exhaust part can only replace the damaged part when the second installation part or the second exhaust part is damaged, without replacing the entire directional exhaust device, thereby reducing maintenance costs.
  • the detachable connection between the second installation part and the second exhaust part can enable the second installation part and the second exhaust part to be transported separately during transportation, thereby reducing logistics costs.
  • the integral structure of the second installation part and the second exhaust part does not require installation between the second installation part and the second exhaust part, thereby simplifying the installation process of the directional exhaust device.
  • the integral structure of the second installation part and the second exhaust part does not need to seal the area connecting the second installation part and the second exhaust part, which simplifies the structure of the directional exhaust device.
  • the first exhaust portion is bent relative to the second exhaust portion.
  • the relative bending degree and angle of the first exhaust part and the second exhaust part of the directional exhaust device can be adjusted according to different installation environments, so that the directional exhaust device can be applied to various environments.
  • the first vent portion is configured to be plugged with a pressure relief device.
  • the first exhaust part is plugged with the pressure relief device so that the gas discharged from the battery through the pressure relief device directly enters the first exhaust part, so that combustible gas will not enter the battery compartment and cause deflagration and explosion.
  • the plugging structure of the first exhaust part and the pressure relief device is relatively simple, which is convenient for installation.
  • the present application provides a battery, which includes a battery cell, a pressure relief device, and the above-mentioned directional exhaust device.
  • the battery cells are accommodated in the case.
  • the box body is used to provide accommodation space for the battery cells, and the box body can adopt various structures.
  • the combination of the pressure relief device and the directional exhaust device of the battery can discharge the combustible gas generated by the battery to the outside in case of thermal runaway, preventing the combustible gas from entering the battery compartment and causing deflagration and explosion.
  • the present application provides a prefabricated energy storage warehouse
  • the prefabricated energy storage warehouse includes a battery warehouse and the aforementioned batteries.
  • the battery compartment can place batteries, thereby realizing the function of storing energy in the prefabricated energy storage compartment.
  • the prefabricated energy storage bin is provided with a partition board, which is used to divide the prefabricated energy storage bin into multiple bins, and the inner cavity of the partition board communicates with the outside world, and the partition board is used for the second exhaust department.
  • the energy storage prefabricated warehouse can be divided into multiple warehouses through the compartment board.
  • the battery warehouse is used to place the battery.
  • the compartment plate can be used as the second exhaust part, and the compartment plate can communicate with the outside, so that the combustible gas generated by the battery in the case of thermal runaway can be discharged to the outside through the second exhaust part.
  • the compartment plate When the compartment plate is set as the second exhaust part, the compartment plate can not only be used to separate each compartment, but also can be used to discharge the combustible gas generated when the battery is thermally out of control, that is, the compartment plate has multiple functions Therefore, there is no need to additionally set the second exhaust part in the prefabricated energy storage bin, the structure of the prefabricated energy storage bin can be simplified, and the production cost of the prefabricated energy storage bin can be reduced.
  • Figure 1 is an exploded view of the battery provided by the present application in a specific embodiment
  • Fig. 2 is a partial structural schematic diagram of the directional exhaust device and the battery provided in the present application in the first specific embodiment, wherein the pressure relief device of the battery is in a closed state;
  • Fig. 3 is a partial structural schematic diagram of the directional exhaust device and the battery provided in the present application in the first specific embodiment, wherein the pressure relief device of the battery is in an open state;
  • Fig. 4 is a schematic diagram of the partial structure of the directional exhaust device and the battery provided in the present application in the second specific embodiment
  • Fig. 5 is a schematic diagram of the partial structure of the directional exhaust device and the battery provided in the present application in the third specific embodiment
  • Fig. 6 is a schematic diagram of the partial structure of the directional exhaust device and the battery in the fourth specific embodiment provided by the present application;
  • Fig. 7 is a schematic diagram of a partial structure of a fifth specific embodiment of a directional exhaust device and a battery provided in the present application.
  • multiple refers to more than two (including two), similarly, “multiple groups” refers to more than two groups (including two), and “multiple pieces” refers to More than two pieces (including two pieces).
  • the battery under the action of internal and external factors such as overcharge and overdischarge, overheating, and mechanical collision, the battery easily causes the battery diaphragm to collapse and internal short circuit, thereby leading to the occurrence of thermal runaway. After thermal runaway occurs, the battery will generate a large amount of flammable gas, which may cause deflagration and explosion after being directly discharged into the battery compartment. As far as the current traditional safety fire protection measures are concerned, the thermal runaway of the battery cannot be effectively suppressed, which leads to the rapid spread of the initial fire, and then evolves into a large-scale fire, causing huge danger and serious losses.
  • the applicant found that by discharging the flammable gas generated by the battery to the outside, it can prevent the flammable gas from staying and accumulating in the battery compartment to cause deflagration and explosion.
  • the combustible gas generated by the batteries in the energy storage prefabricated warehouse is discharged to the outside through the directional exhaust device.
  • the directional exhaust device disclosed in the embodiments of the present application can be used, but not limited to, for directional exhaust of combustible gases generated by batteries in prefabricated energy storage bins, and can also be used for directional exhaust of gases in other scenarios.
  • the prefabricated energy storage bin includes a battery bin and a battery, and the battery bin can place batteries, thereby realizing the function of storing energy in the prefabricated energy storage bin.
  • FIG. 1 is an exploded view of a specific embodiment of the battery provided by the present application.
  • the embodiment of the present application provides a battery 100, which includes a battery cell 20, a pressure relief device 30 and a directional exhaust device.
  • the battery cells 20 are housed in the case 10 .
  • the box body 10 is used to provide accommodating space for the battery cells 20 , and the box body 10 may adopt various structures.
  • the box body 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, the first part 11 and the second part 12 jointly define a of accommodation space.
  • the second part 12 can be a hollow structure with one end open, the first part 11 can be a plate-like structure, and the first part 11 covers the opening side of the second part 12, so that the first part 11 and the second part 12 jointly define an accommodation space ;
  • the first part 11 and the second part 12 can also be hollow structures with one side opening, and the opening side of the first part 11 is covered by the opening side of the second part 12 .
  • the box body 10 formed by the first part 11 and the second part 12 can be in various shapes, such as a cylinder, a cuboid and the like.
  • the battery 100 there may be multiple battery cells 20 , and the multiple battery cells 20 may be connected in series, in parallel or in parallel.
  • the mixed connection means that the multiple battery cells 20 are connected in series and in parallel.
  • a plurality of battery cells 20 can be directly connected in series, in parallel or mixed together, and then the whole composed of a plurality of battery cells 20 is housed in the box 10; of course, the battery 100 can also be a plurality of battery cells 20
  • the battery modules are firstly connected in series or parallel or in combination, and then multiple battery modules are connected in series or in parallel or in combination to form a whole, which is accommodated in the case 10 .
  • the battery 100 may also include other structures, for example, the battery 100 may also include a bus component for realizing electrical connection between multiple battery cells 20 .
  • each battery cell 20 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but not limited thereto.
  • the battery cell 20 may be in the form of a cylinder, a flat body, a cuboid or other shapes.
  • the combination of the pressure relief device 30 and the directional exhaust device of the battery 100 can discharge the combustible gas generated by the battery 100 to the outside when thermal runaway occurs, preventing the combustible gas from entering the battery compartment and causing deflagration and explosion.
  • Figures 2 and 3 are schematic diagrams of the local structure of the directional exhaust device and the battery in the first specific embodiment provided by the present application, wherein the pressure relief device 30 of the battery 100 in Figure 2 is in a closed state, and the battery in Figure 3
  • the pressure relief device 30 of 100 is in an open state (the arrows in FIG. 3 indicate the gas flow direction).
  • the directional exhaust device includes at least a first exhaust part 200 and a second exhaust part 300, the first exhaust part 200 is used to communicate with the pressure relief device 30 of the battery 100, the second exhaust part 300 is connected with the first exhaust part 200 communicates with the outside, so as to discharge the gas generated by the battery 100 through the pressure relief device 30 , the first exhaust part 200 and the second exhaust part 300 .
  • the pressure relief device 30 can be an explosion-proof valve, which is a pressure relief mechanism capable of releasing the internal pressure of the battery 100 when the internal pressure or temperature of the battery 100 reaches a threshold value, and is generally installed on the case 10 of the battery 100.
  • the gas pressure inside the battery 100 is less than the opening pressure value of the explosion-proof valve, the explosion-proof valve is in a closed state, and the gas inside the battery 100 does not communicate with the outside gas, as shown in Figure 2;
  • 100 When thermal runaway occurs under the action of internal and external factors such as overcharge, overdischarge, overheating, mechanical collision, etc., a large amount of combustible gas is generated inside the battery 100, making the gas pressure inside the battery 100 greater than the opening pressure value of the explosion-proof valve, explosion-proof The valve changes from the closed state to the open state, so that the combustible gas inside the battery 100 can be discharged through the explosion-proof valve, thereby preventing a large amount of combustible gas from accumulating inside the battery 100 and causing the battery 100 to deflagrate and explode, as shown in FIG. 3 .
  • the first exhaust part 200 and the second exhaust part 300 form a directional exhaust channel that can communicate with the outside world and the pressure relief device 30 , and gas can flow in the directional exhaust channel.
  • a large amount of combustible gas generated by the battery 100 when thermal runaway makes the gas pressure inside the battery 100 greater than the opening pressure value of the pressure relief device 30 , the pressure relief device 30 is opened, and the combustible gas enters the first connected to the pressure relief device 30 through the pressure relief device 30 .
  • An exhaust part 200 and is directly discharged to the outside through the first exhaust part 200 and the second exhaust part 300, thereby preventing the combustible gas discharged from the pressure relief device 30 from entering the battery compartment, thereby preventing the concentration of the combustible gas in the battery compartment from being too high When it is high, it will cause deflagration and explosion, and improve the safety and service life of the energy storage prefabricated warehouse.
  • a safety chamber can also be set between the first exhaust part 200 and the outside world to temporarily accommodate combustible gas, and fans and other devices that can accelerate the flow of gas are arranged in the safety chamber to accelerate the discharge of combustible gas, so that the combustible gas can Rapid discharge to the environment.
  • the first exhaust part 200 is provided with a first installation part 201 , and the first installation part 201 is away from the first exhaust part 200 along the radial direction of the first exhaust part 200 .
  • the direction extends; the first installation part 201 is pressed against the second exhaust part 300 .
  • the first installation part 201 is in surface contact with the second exhaust part 300 , and the first installation part 201 extends away from the first exhaust part 200 along the radial direction of the first exhaust part 200
  • the contact area between the first installation part 201 and the second exhaust part 300 is increased, thereby improving the reliability of cooperation between the first installation part 201 and the second exhaust part 300, reducing the installation accuracy required for installation, and reducing the difficulty of installation .
  • the first installation part 201 is pressed against the second exhaust part 300 so that the combustible gas discharged to the outside through the first exhaust part 200 and the second exhaust part 300 will not flow out from the first installation part 201 and the second exhaust part 300.
  • the connected position enters the battery compartment, thereby preventing the deflagration and explosion of the battery compartment caused by combustible gas.
  • the surface of the first installation part 201 is in contact with the second exhaust part 300
  • the form allows the operator to successfully install the first installation part 201 and the second exhaust part 300 only by moving the position of the battery 100, thereby realizing quick insertion and blind insertion when installing the directional exhaust device, and making the directional exhaust Installation of the device is quicker.
  • the battery 100 can not be moved relative to the energy storage prefabricated bin by means of bolt connection or the like, so that the directional exhaust device The position is fixed to ensure that the directional exhaust device can work normally.
  • the first installation part 201 and the second exhaust part 300 are sealed by a first sealing member 400 .
  • the first sealing member 400 can seal the part where the first installation part 201 and the second exhaust part 300 are connected, further preventing combustible gas from being discharged to the outside through the first exhaust part 200 and the second exhaust part 300 Gas leaks into the battery compartment at the place where the first installation part 201 and the second exhaust part 300 are connected, causing deflagration and explosion of the battery compartment, thereby improving the reliability and safety of the directional exhaust device.
  • Fig. 4 is a schematic diagram of a partial structure of a directional exhaust device and a battery provided in the present application in a second specific embodiment.
  • the first sealing member 400 is soft rubber or a gasket.
  • the first sealing member 400 in FIG. 2 is soft glue
  • the first sealing member 400 in FIG. 4 is a gasket.
  • both the soft rubber and the sealing gasket have good sealing performance, and the soft rubber or the sealing gasket can be selected as the first sealing member 400 according to the actual situation when installing the directional exhaust device.
  • Fig. 5 is a schematic diagram of a partial structure of a directional exhaust device and a battery in a third specific embodiment provided by the present application.
  • the directional exhaust device further includes a second installation part 301 connected to the second exhaust part 300 , and the first exhaust part 200 is sleeved on the inner wall or the outer wall of the second installation part 301 .
  • the second mounting part 301 can increase the length of the directional exhaust device, so that the directional exhaust device can be applied to the case where the box 10 of the battery 100 is far away from the outside world, increasing the use of the directional exhaust device Scenes.
  • the first exhaust part 200 is sleeved on the inner wall or outer wall of the second installation part 301 so that the contact area between the second installation part 301 and the first exhaust part 200 is larger, and the air flows through the first exhaust part 200 and the second exhaust part 200 .
  • the combustible gas in the exhaust part 300 is difficult to leak through the connection between the second installation part 301 and the first exhaust part 200, thereby improving the sealing performance of the directional exhaust device.
  • the first exhaust part 200 is nested with the second installation part 301
  • the form allows the operator to install the first exhaust part 200 and the second installation part 301 successfully only by moving the position of the battery 100, thereby realizing quick insertion and blind insertion when installing the directional exhaust device, and making the directional exhaust Installation of the device is quicker.
  • the second installation part 301 after the second installation part 301 is provided, there may be no direct contact between the first exhaust part 200 and the second exhaust part 300.
  • the second installation part 301 The inner cavity can also be used as an exhaust channel, that is, the gas generated by thermal runaway of the battery can be exhausted to the outside through the first exhaust part 200 , the inner cavity of the second mounting part 301 and the second exhaust part 300 .
  • the first exhaust portion 200 and the second installation portion 301 are sealed by a second sealing member 500 .
  • the second sealing member 500 may specifically be a gasket, glue or the like.
  • the second sealing member 500 can seal the part where the first exhaust part 200 and the second installation part 301 are connected, and prevent the combustible gas flowing to the outside through the first exhaust part 200, the second installation part 301 and the second exhaust part 300 from The connection between the first exhaust part 200 and the second installation part 301 leaks into the battery compartment, causing deflagration and explosion of the battery compartment, thereby improving the reliability and safety of the directional exhaust device.
  • Figure 6 is a schematic diagram of the partial structure of the directional exhaust device and the battery provided by the application in the fourth specific embodiment
  • Figure 7 is a partial structure of the directional exhaust device and the battery provided by the application in the fifth specific embodiment schematic diagram.
  • first contact surface 600 close to the pressure relief device 30 and a second contact surface 700 away from the pressure relief device 30 between the first exhaust part 200 and the second installation part 301
  • the second sealing member 500 is located on the first contact surface 600 and/or the second contact surface 700 .
  • the second sealing member 500 in FIG. 5 is located at the first contact surface 600
  • the second sealing member 500 in FIG. 6 is located at the second contact surface 700
  • the second sealing member 500 in FIG. 7 is located at the first contact surface 600 and The second contact surface 700 .
  • the second sealing member 500 can be located on the first contact surface 600 or the second contact surface 700, and the second sealing member 500 can be located on the second contact surface at the same time.
  • the first contact surface 600 and the second contact surface 700 do not require the second sealing member 500 to be located at a specific position during assembly, and on the premise of ensuring the sealing reliability between the first exhaust part 200 and the second installation part 301, the This reduces the installation difficulty of the second sealing member 500 and simplifies the installation of the directional exhaust device.
  • the second exhaust part 300 and the second installation part 301 are detachably connected or the second exhaust part 300 and the second installation part 301 are in an integrated structure
  • the detachable connection between the second installation part 301 and the second exhaust part 300 can only replace the damaged part when the second installation part 301 or the second exhaust part 300 is damaged, without replacing the entire directional exhaust device, thereby reducing maintenance costs.
  • the detachable connection between the second installation part 301 and the second exhaust part 300 can enable the second installation part 301 and the second exhaust part 300 to be transported separately during transportation, thereby reducing logistics costs.
  • the integrated structure of the second installation part 301 and the second exhaust part 300 does not require installation between the second installation part 301 and the second exhaust part 300, thereby simplifying the installation of the directional exhaust device process.
  • the integrated structure of the second installation part 301 and the second exhaust part 300 does not need to seal the area where the second installation part 301 and the second exhaust part 300 are connected, which simplifies the structure of the directional exhaust device.
  • first exhaust portion 200 and the second exhaust portion 300 are bent relative to each other.
  • the first exhaust part 200 and the second exhaust part 300 of the directional exhaust device can adjust the relative bending degree and angle according to different installation environments, so that the directional exhaust device can be applied to various environment of.
  • the first exhaust part 200 is used for plugging with the pressure relief device 30 .
  • the first exhaust part 200 is plugged with the pressure relief device 30 so that the gas discharged from the battery 100 through the pressure relief device 30 directly enters the first exhaust part 200, so that combustible gas will not enter the battery compartment and cause Deflagration explosion.
  • the plug-in structure of the first exhaust part 200 and the pressure relief device 30 is relatively simple and easy to install.
  • the prefabricated energy storage bin is provided with partition boards, which are used to divide the prefabricated energy storage bin into multiple bins. Department 300.
  • the energy storage prefabricated warehouse can be divided into a plurality of warehouses by the partition board, and the battery warehouse is used to place the battery 100.
  • the battery warehouse is used to place the battery 100.
  • the compartment plate can be used as the second exhaust part 300, and the compartment plate can communicate with the outside, so that the combustible gas generated by the battery 100 in the case of thermal runaway can be discharged to the outside through the second exhaust part 300 .
  • the compartment plate can not only be used to separate each compartment, but also can be used to discharge the combustible gas generated when the battery 100 is thermally out of control, that is, the compartment plate has multiple This function eliminates the need to additionally set the second exhaust part 300 in the prefabricated energy storage bin, which can simplify the structure of the prefabricated energy storage bin and reduce the production cost of the prefabricated energy storage bin.
  • a second exhaust part 300 communicating with the outside world may be additionally provided in the energy storage prefabricated bin, and it only needs to communicate the second exhaust part 300 with the first exhaust part 200.
  • the second row The air part 300 may be connected to the compartment plate or not, and the functions and structures of the two are relatively independent.
  • the present application provides a directional exhaust device, which includes a first exhaust part 200 and a second exhaust part 300, wherein the second exhaust part 300 may be a compartment plate, the first exhaust part 200 communicates with the second exhaust part 300, the other end of the first exhaust part 200 is connected with the pressure relief device 30, and the other end of the second exhaust part 300 communicates with the outside world .
  • the pressure relief device 30 discharges the combustible gas generated by the battery 100 into the first exhaust part 200, and then discharges to the outside through the first exhaust part 200 and the second exhaust part 300, thereby preventing Combustible gas enters the battery compartment and causes deflagration and explosion, which in turn damages the entire prefabricated energy storage compartment, causing huge losses.

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Abstract

本申请涉及一种定向排气装置、电池(100)及储能预制仓，该定向排气装置至少包括第一排气部(200)和第二排气部(300)，第一排气部(200)用于与电池(100)的泄压装置(30)连通，第二排气部(300)与第一排气部(200)和外界连通，以便通过泄压装置(30)、第一排气部(200)和第二排气部(300)排出电池(100)产生的气体。电池(100)在热失控时产生的大量可燃气体经泄压装置(30)进入第一排气部(200)，并通过第一排气部(200)和第二排气部(300)直接排放到外界，从而防止从泄压装置(30)排出的可燃气体进入电池仓，进而防止电池仓内可燃气体浓度过高时引起爆燃爆炸，提高储能预制仓的安全性和使用寿命。

Description

一种定向排气装置、电池及储能预制仓
本申请引用于2021年11月05日递交的名称为“一种定向排气装置、电池及储能预制仓”的第202122695707.7号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及储能设备技术领域，尤其涉及一种定向排气装置、电池及储能预制仓。
背景技术
构建以新能源为主体的新型电力系统是实现碳达峰、碳中和重要的举措，储能仓在新型电力系统中肩负重任。电池为电化学储能的主要形式，同时，由于储能仓具有高度的集成化和便捷的安装方式的特点，储能仓成为了电池储能电站的主要产品形式。
放置在储能仓内的电池在过充过放、过热、机械碰撞等内部和外部因素的作用下，容易引起电池隔膜崩溃、内部短路，从而导致热失控的发生。热失控发生后，电池会产生大量可燃气体，可燃气体极易引起爆燃爆炸，从而影响储能仓的安全使用并造成巨大的损失。
发明内容
基于此，本申请提供了一种定向排气装置、电池及储能预制仓，该定向排气装置能够提高储能预制仓的安全性和使用寿命。
第一方面，本申请提供一种定向排气装置，定向排气装置至少包括第一 排气部和第二排气部，第一排气部用于与电池的泄压装置连通，第二排气部与第一排气部和外界连通，以便通过泄压装置、第一排气部和第二排气部排出电池产生的气体。电池在热失控时产生的大量可燃气体经泄压装置进入第一排气部，并通过第一排气部和第二排气部直接排放到外界，从而防止从泄压装置排出的可燃气体进入电池仓，进而防止电池仓内可燃气体浓度过高时引起爆燃爆炸，提高储能预制仓的安全性和使用寿命。
在一些实施例中，第一排气部设置有第一安装部，第一安装部沿第一排气部的径向向远离第一排气部的方向延伸；第一安装部压紧于第二排气部。第一安装部与第二排气部为面接触，增加了第一安装部与第二排气部的接触面积，从而提高了第一安装部与第二排气部的配合可靠性，降低了安装所需的安装精度，使安装难度降低。第一安装部压紧于第二排气部使经第一排气部和第二排气部排出到外界的可燃气体不会从第一安装部和第二排气部连接的位置进入电池仓内，从而防止可燃气体引起电池仓的爆燃爆炸。
在一些实施例中，第一安装部与第二排气部之间通过第一密封件密封，进一步防止通过第一排气部和第二排气部排出到外界的可燃气体在第一安装部和第二排气部连接的地方泄露进电池仓内，造成电池仓爆燃爆炸，从而提高定向排气装置的可靠性和安全性。
在一些实施例中，第一密封件为软胶或密封垫。软胶和密封垫均具有较好的密封性能，在进行定向排气装置的安装时可根据实际情况选择软胶或密封垫作为第一密封件。
在一些实施例中，定向排气装置还包括与第二排气部连接的第二安装部；第一排气部套接于第二安装部的内壁或外壁。第二安装部能够增加定向排气装置的长度，使定向排气装置能够适用于电池的箱体与外界距离较远的情况，增 加了定向排气装置的使用场景。同时，第一排气部套接于第二安装部的内壁或外壁使第二安装部与第一排气部的接触面积较大，流经第一排气部和第二排气部的可燃气体难以通过第二安装部和第一排气部连接的地方泄露，从而提高了定向排气装置的密封性。
在一些实施例中，第一排气部与第二安装部之间通过第二密封件密封。第二密封件能够密封第一排气部和第二安装部连接的部分，防止通过第一排气部、第二安装部和第二排气部流向外界的可燃气体从第一排气部和第二安装部连接的地方泄露进电池仓内，造成电池仓爆燃爆炸，从而提高定向排气装置的可靠性和安全性。
在一些实施例中，第一排气部与第二安装部之间具有靠近泄压装置的第一接触面和远离泄压装置的第二接触面，第二密封件位于第一接触面和/或第二接触面。第二密封件的放置位置有多种情况，在装配时无需使第二密封件位于特定位置，在保证第一排气部与第二安装部之间的密封可靠性的前提下，降低了第二密封件的安装难度，简化了定向排气装置的安装。
在一些实施例中，第二排气部和第二安装部可拆卸连接或第二排气部和第二安装部为一体式结构。第二安装部与第二排气部可拆卸连接能够在第二安装部或第二排气部损坏时仅更换损坏的部分，而无需更换整个定向排气装置，从而降低维修成本。同时，第二安装部与第二排气部可拆卸连接能够使第二安装部和第二排气部在运输过程中能够分开运输，从而降低物流成本。第二安装部与第二排气部为一体式结构无需进行第二安装部和第二排气部之间的安装，从而简化了定向排气装置的安装过程。同时，第二安装部和第二排气部为一体式结构无需对第二安装部和第二排气部连接的区域进行密封，简化了定向排气装置的结构。
在一些实施例中，第一排气部与第二排气部相对弯折。定向排气装置的第一排气部与第二排气部能够根据安装环境的不同调整相对弯折程度和角度，从而使定向排气装置能够适用于多种不同的环境。
在一些实施例中，第一排气部用于与泄压装置插接。第一排气部与泄压装置插接使电池通过泄压装置排出的气体直接进入第一排气部，从而使可燃气体不会进入电池仓内引起爆燃爆炸。同时，第一排气部与泄压装置插接的结构较为简单，便于安装。
第二方面，本申请提供一种电池，电池包括电池单体、泄压装置和上述的定向排气装置。电池单体容纳于箱体内。箱体用于为电池单体提供容纳空间，箱体可以采用多种结构。电池的泄压装置和定向排气装置配合能够将电池在发生热失控情况下产生的可燃气体排放到外界，防止可燃气体进入电池仓内引起爆燃爆炸。
第三方面，本申请提供一种储能预制仓，储能预制仓包括电池仓和上述的电池。电池仓能够放置电池，从而实现储能预制仓存储能量的功能。
在一些实施例中，储能预制仓内具有隔仓板，隔仓板用于将储能预制仓分隔为多个仓，隔仓板的内腔与外界连通，隔仓板为第二排气部。通过隔仓板能够将储能预制仓分隔为多个仓，用于放置电池的为电池仓，此外还设置有电器仓、水冷机组仓等，从而使各个仓彼此配合实现储能预制仓的正常工作。隔仓板可以作为第二排气部，隔仓板能够与外界连通，从而使电池在热失控情况下产生的可燃气体能够通过第二排气部排放到外界。将隔仓板设置为第二排气部时，使得该隔仓板不仅能够用于隔开各个仓，还能够用于排出电池热失控时产生的可燃气体，即该隔仓板具有多种功能，无需在储能预制仓中另外设置第二排气部，能够简化储能预制仓的结构，降低储能预制仓的生产费用。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
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为本申请所提供的电池在一种具体实施例中的爆炸图；
图2为本申请所提供定向排气装置与电池在第一种具体实施例中的局部结构示意图，其中电池的泄压装置为关闭状态；
图3为本申请所提供定向排气装置与电池在第一种具体实施例中的局部结构示意图，其中电池的泄压装置为开启状态；
图4为本申请所提供定向排气装置与电池在第二种具体实施例中的局部结构示意图；
图5为本申请所提供定向排气装置与电池在第三种具体实施例中的局部结构示意图；
图6为本申请所提供定向排气装置与电池在第四种具体实施例中的局部结构示意图；
图7为本申请所提供定向排气装置与电池在第五种具体实施例中的局部结构示意图。
100、电池；10、箱体；11、第一部分；12、第二部分；20、电池单体；30、泄压装置；200、第一排气部；201、第一安装部；300、第二排气部；301、第二安装部；400、第一密封件；500、第二密封件；600、第一接触面；700、第二接触面。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
构建以新能源为主体的新型电力系统，是实现碳达峰、碳中和的重要举措，储能在新型电力系统中肩负重任。当前，中国新型储能设备的规模飙升，电池成为电化学储能的主要形式，同时，储能预制仓以其高度的集成化及便捷的安装方式又成为电池储能电站的主要产品形式。
本申请人注意到，电池在过充过放、过热、机械碰撞等内部和外部因素 的作用下，容易引起电池隔膜崩溃、内部短路，从而导致热失控的发生。热失控发生后，电池会产生大量可燃气体，可燃气体直接排放到电池仓内后可能引起爆燃爆炸。就目前传统的安全消防措施而言，并不能有效抑制电池的热失控，从而导致初期火灾迅速蔓延，进而演变为大规模火灾，造成巨大的危险和严重的损失。
为了缓解电池热失控引发火灾的问题，申请人研究发现，通过将电池产生的可燃气体排放到外界，能够防止可燃气体停留、积聚在电池仓内引起爆燃爆炸。本申请通过定向排气装置将储能预制仓中的电池产生的可燃气体排放至室外。
本申请实施例公开的定向排气装置可以但不限用于对储能预制仓中的电池产生的可燃气体进行定向排放，也可用于其他场景下的气体的定向排放。其中，该储能预制仓包括电池仓和电池，电池仓能够放置电池，从而实现储能预制仓存储能量的功能。
请参照图1，图1为本申请所提供的电池在一种具体实施例中的爆炸图。本申请实施例提供一种电池100，该电池100包括电池单体20、泄压装置30和定向排气装置。
在本实施例中，电池单体20容纳于箱体10内。其中，箱体10用于为电池单体20提供容纳空间，箱体10可以采用多种结构。在一些实施例中，箱体10可以包括第一部分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和第二部分12共同限定出用于容纳电池单体20的容纳空间。第二部分12可以为一端开口的空心结构，第一部分11可以为板状结构，第一部分11盖合于第二部分12的开口侧，以使第一部分11与第二部分12共同限定出容纳空间；第一部分11和第二部分12也可以是均为一侧开口的空心结构，第一 部分11的开口侧盖合于第二部分12的开口侧。当然，第一部分11和第二部分12形成的箱体10可以是多种形状，比如，圆柱体、长方体等。
在电池100中，电池单体20可以是多个，多个电池单体20之间可串联或并联或混联，混联是指多个电池单体20中既有串联又有并联。多个电池单体20之间可直接串联或并联或混联在一起，再将多个电池单体20构成的整体容纳于箱体10内；当然，电池100也可以是多个电池单体20先串联或并联或混联组成电池模块形式，多个电池模块再串联或并联或混联形成一个整体，并容纳于箱体10内。电池100还可以包括其他结构，例如，该电池100还可以包括汇流部件，用于实现多个电池单体20之间的电连接。
其中，每个电池单体20可以为二次电池或一次电池；还可以是锂硫电池、钠离子电池或镁离子电池，但不局限于此。电池单体20可呈圆柱体、扁平体、长方体或其它形状等。
另外，电池100的泄压装置30和定向排气装置配合能够将电池100在发生热失控情况下产生的可燃气体排放到外界，防止可燃气体进入电池仓内引起爆燃爆炸。
图2和图3为本申请所提供定向排气装置与电池在第一种具体实施例中的局部结构示意图，其中图2中的电池100的泄压装置30为关闭状态，图3中的电池100的泄压装置30为开启状态(图3中的箭头为气体流动方向的示意)。定向排气装置至少包括第一排气部200和第二排气部300，第一排气部200用于与电池100的泄压装置30连通，第二排气部300与第一排气部200和外界连通，以便通过泄压装置30、第一排气部200和第二排气部300排出电池100产生的气体。
其中，泄压装置30可以为防爆阀，防爆阀是一种在电池100的内部压力 或温度达到阈值时能够泄放电池100内部压力的泄压机构，一般安装于电池100的箱体10上。例如，当电池100正常工作时，电池100内部的气体压强小于防爆阀的开启压力值，防爆阀处于关闭状态，电池100内部的气体与外部的气体互不流通，如图2所示；当电池100在过充过放、过热、机械碰撞等内部和外部因素的作用下发生热失控时，电池100的内部产生大量的可燃气体，使电池100内部的气体压强大于防爆阀的开启压力值，防爆阀由关闭状态转变为开启状态，使电池100内部的可燃气体能够经防爆阀排出，从而防止大量可燃气体积聚在电池100内部引起电池100爆燃爆炸，如图3所示。
在本实施例中，第一排气部200和第二排气部300形成了一个能够连通外界和泄压装置30的定向排气通道，气体能够在该定向排气通道内流动。电池100在热失控时产生的大量可燃气体使电池100内部的气体压强大于泄压装置30的开启压力值，泄压装置30开启，可燃气体经泄压装置30进入与泄压装置30连通的第一排气部200，并通过第一排气部200和第二排气部300直接排放到外界，从而防止从泄压装置30排出的可燃气体进入电池仓，进而防止电池仓内可燃气体浓度过高时引起爆燃爆炸，提高储能预制仓的安全性和使用寿命。
另外，在第一排气部200与外界之间也可以设置一个安全仓以暂时容纳可燃气体，在安全仓内设置风扇等能够加速气体流动的设备以加速可燃气体的排出，从而使可燃气体能够快速地排放到外界。
在一实施例中，如图2所示，第一排气部200设置有第一安装部201，第一安装部201沿第一排气部200的径向向远离第一排气部200的方向延伸；第一安装部201压紧于第二排气部300。
在本实施例中，第一安装部201与第二排气部300为面接触，且第一安装部201沿第一排气部200的径向向远离第一排气部200的方向延伸增加了第 一安装部201与第二排气部300的接触面积，从而提高了第一安装部201与第二排气部300的配合可靠性，降低了安装所需的安装精度，使安装难度降低。第一安装部201压紧于第二排气部300使经第一排气部200和第二排气部300排出到外界的可燃气体不会从第一安装部201和第二排气部300连接的位置进入电池仓内，从而防止可燃气体引起电池仓的爆燃爆炸。
另外，由于将电池100安装于电池仓的过程中往往看不到定向排气装置和电池100的箱体10用于安装的侧面，因此第一安装部201与第二排气部300的面接触的形式使操作者仅通过移动电池100的位置即可使第一安装部201与第二排气部300安装成功，从而实现了定向排气装置安装时的快插、盲插，使定向排气装置的安装更加快捷。同时，在移动电池100使第一安装部201与第二排气部300位于合适的安装位置后可通过螺栓连接等固定方式使电池100不能相对于储能预制仓移动，从而使定向排气装置的位置固定，保证定向排气装置能够正常工作。
在一实施例中，如图2所示，第一安装部201与第二排气部300之间通过第一密封件400密封。
在本实施例中，第一密封件400能够密封第一安装部201和第二排气部300连接的部分，进一步防止通过第一排气部200和第二排气部300排出到外界的可燃气体在第一安装部201和第二排气部300连接的地方泄露进电池仓内，造成电池仓爆燃爆炸，从而提高定向排气装置的可靠性和安全性。
图4为本申请所提供定向排气装置与电池在第二种具体实施例中的局部结构示意图。请参照图2和图4，第一密封件400为软胶或密封垫。其中，图2中的第一密封件400为软胶，图4中的第一密封件400为密封垫。
在本实施例中，软胶和密封垫均具有较好的密封性能，在进行定向排气 装置的安装时可根据实际情况选择软胶或密封垫作为第一密封件400。
图5为本申请所提供定向排气装置与电池在第三种具体实施例中的局部结构示意图。请参照图5，定向排气装置还包括与第二排气部300连接的第二安装部301，第一排气部200套接于第二安装部301的内壁或外壁。
在本实施例中，第二安装部301能够增加定向排气装置的长度，使定向排气装置能够适用于电池100的箱体10与外界距离较远的情况，增加了定向排气装置的使用场景。同时，第一排气部200套接于第二安装部301的内壁或外壁使第二安装部301与第一排气部200的接触面积较大，流经第一排气部200和第二排气部300的可燃气体难以通过第二安装部301和第一排气部200连接的地方泄露，从而提高了定向排气装置的密封性。
另外，由于将电池100安装于电池仓的过程中时往往看不到定向排气装置和电池100的箱体10用于安装的侧面，因此第一排气部200与第二安装部301套接的形式使操作者仅通过移动电池100的位置即可使第一排气部200与第二安装部301安装成功，从而实现了定向排气装置安装时的快插、盲插，使定向排气装置的安装更加快捷。
本实施例中，如图5所示，设置第二安装部301后，该第一排气部200与第二排气部300之间可以不直接接触，此时，该第二安装部301的内腔也可以作为排气通道，即电池热失控产生的气体能够经第一排气部200、第二安装部301的内腔和第二排气部300排出至外界。
在一实施例中，如图5所示，第一排气部200与第二安装部301之间通过第二密封件500密封。
在本实施例中，第二密封件500具体可以为密封垫、粘胶等。第二密封件500能够密封第一排气部200和第二安装部301连接的部分，防止通过第一 排气部200、第二安装部301和第二排气部300流向外界的可燃气体从第一排气部200和第二安装部301连接的地方泄露进电池仓内，造成电池仓爆燃爆炸，从而提高定向排气装置的可靠性和安全性。
图6为本申请所提供定向排气装置与电池在第四种具体实施例中的局部结构示意图，图7为本申请所提供定向排气装置与电池在第五种具体实施例中的局部结构示意图。请参照图5、图6和图7，第一排气部200与第二安装部301之间具有靠近泄压装置30的第一接触面600和远离泄压装置30的第二接触面700，第二密封件500位于第一接触面600和/或第二接触面700。其中，图5中的第二密封件500位于第一接触面600，图6中的第二密封件500位于第二接触面700，图7中的第二密封件500位于第一接触面600和第二接触面700。
在本实施例中，第二密封件500的放置位置有多种情况，例如，第二密封件500可以位于第一接触面600或第二接触面700，且第二密封件500能够同时位于第一接触面600和第二接触面700，在装配时无需使第二密封件500位于特定位置，在保证第一排气部200与第二安装部301之间的密封可靠性的前提下，降低了第二密封件500的安装难度，简化了定向排气装置的安装。
在一实施例中，第二排气部300和第二安装部301可拆卸连接或第二排气部300和第二安装部301为一体式结构
在本实施例中，第二安装部301与第二排气部300可拆卸连接能够在第二安装部301或第二排气部300损坏时仅更换损坏的部分，而无需更换整个定向排气装置，从而降低维修成本。同时，第二安装部301与第二排气部300可拆卸连接能够使第二安装部301和第二排气部300在运输过程中能够分开运输，从而降低物流成本。
在本实施例中，第二安装部301与第二排气部300为一体式结构无需进 行第二安装部301和第二排气部300之间的安装，从而简化了定向排气装置的安装过程。同时，第二安装部301和第二排气部300为一体式结构无需对第二安装部301和第二排气部300连接的区域进行密封，简化了定向排气装置的结构。
在一实施例中，第一排气部200与第二排气部300相对弯折。
在本实施例中，定向排气装置的第一排气部200与第二排气部300能够根据安装环境的不同调整相对弯折程度和角度，从而使定向排气装置能够适用于多种不同的环境。
在一实施例中，第一排气部200用于与泄压装置30插接。
在本实施例中，第一排气部200与泄压装置30插接使电池100通过泄压装置30排出的气体直接进入第一排气部200，从而使可燃气体不会进入电池仓内引起爆燃爆炸。同时，第一排气部200与泄压装置30插接的结构较为简单，便于安装。
在一实施例中，储能预制仓内具有隔仓板，隔仓板用于将储能预制仓分隔为多个仓，隔仓板的内腔与外界连通，隔仓板为第二排气部300。
在本实施例中，通过隔仓板能够将储能预制仓分隔为多个仓，用于放置电池100的为电池仓，此外还设置有电器仓、水冷机组仓等，从而使各个仓彼此配合实现储能预制仓的正常工作。
在本实施例中，隔仓板可以作为第二排气部300，隔仓板能够与外界连通，从而使电池100在热失控情况下产生的可燃气体能够通过第二排气部300排放到外界。将隔仓板设置为第二排气部300时，使得该隔仓板不仅能够用于隔开各个仓，还能够用于排出电池100热失控时产生的可燃气体，即该隔仓板具有多种功能，无需在储能预制仓中另外设置第二排气部300，能够简化储能预制仓 的结构，降低储能预制仓的生产费用。
另外，也可以在储能预制仓内另外设置与外界连通的第二排气部300，并将该第二排气部300与第一排气部200连通即可，此时，该第二排气部300与隔仓板之间可以连接，也可以不连接，二者的功能和结构相对独立。
根据本申请的实施例，如图2所示，本申请提供了一种定向排气装置，该定向排气装置包括第一排气部200和第二排气部300，其中第二排气部300可以为隔仓板，第一排气部200与第二排气部300连通，第一排气部200的另一端与泄压装置30连接，第二排气部300的另一端与外界连通。当电池100发生热失控时，泄压装置30将电池100产生的可燃气体排放到第一排气部200中，然后经第一排气部200和第二排气部300排放到外界，从而防止可燃气体进入电池仓引起爆燃爆炸，进而损坏整个储能预制仓，造成巨大的损失。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (14)

  1. 一种定向排气装置，所述定向排气装置至少包括第一排气部(200)和第二排气部(300)，所述第一排气部(200)用于与电池(100)的泄压装置(30)连通，所述第二排气部(300)与所述第一排气部(200)和外界连通，以便通过所述泄压装置(30)、所述第一排气部(200)和所述第二排气部(300)排出所述电池(100)产生的气体。
  2. 根据权利要求1所述的定向排气装置，其中，所述第一排气部(200)设置有第一安装部(201)，所述第一安装部(201)沿所述第一排气部(200)的径向向远离所述第一排气部(200)的方向延伸；
    所述第一安装部(201)压紧于所述第二排气部(300)。
  3. 根据权利要求2所述的定向排气装置，其中，所述第一安装部(201)与所述第二排气部(300)之间通过第一密封件(400)密封。
  4. 根据权利要求3所述的定向排气装置，其中，所述第一密封件(400)为软胶或密封垫。
  5. 根据权利要求1至4中任一项所述的定向排气装置，其中，所述定向排气装置还包括与所述第二排气部(300)连接的第二安装部(301)；
    所述第一排气部(200)套接于所述第二安装部(301)的内壁或外壁。
  6. 根据权利要求5所述的定向排气装置，其中，所述第一排气部(200)与所述第二安装部(301)之间通过第二密封件(500)密封。
  7. 根据权利要求6所述的定向排气装置，其中，所述第一排气部(200)与所述第二安装部(301)之间具有靠近所述泄压装置(30)的第一接触面(600)和远离所述泄压装置(30)的第二接触面(700)，所述第二密封件(500)位于所述第一接触面(600)和/或所述第二接触面(700)。
  8. 根据权利要求5所述的定向排气装置，其中，所述第二排气部(300)和所述第二安装部(301)可拆卸连接。
  9. 根据权利要求5所述的定向排气装置，其中，所述第二排气部(300)和所述第二安装部(301)为一体式结构。
  10. 根据权利要求1至9中任一项所述的定向排气装置，其中，所述第一排气部(200)与所述第二排气部(300)相对弯折。
  11. 根据权利要求1至10中任一项所述的定向排气装置，其中，所述第一排气部(200)用于与所述泄压装置(30)插接。
  12. 一种电池，所述电池(100)包括电池单体(20)、泄压装置(30)和权利要求1至11中任一项所述的定向排气装置。
  13. 一种储能预制仓，所述储能预制仓包括电池仓和权利要求12所述的电池(100)。
  14. 根据权利要求13所述的储能预制仓，其中，所述储能预制仓内具有隔仓板，所述隔仓板用于将所述储能预制仓分隔为多个仓，所述隔仓板的内腔与外界连通，所述隔仓板为所述第二排气部(300)。
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CN216488385U (zh) * 2021-11-05 2022-05-10 宁德时代新能源科技股份有限公司 一种定向排气装置、电池及储能预制仓
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