CN116759694A - Power battery shell system, battery and vehicle - Google Patents

Power battery shell system, battery and vehicle Download PDF

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Publication number
CN116759694A
CN116759694A CN202310727315.5A CN202310727315A CN116759694A CN 116759694 A CN116759694 A CN 116759694A CN 202310727315 A CN202310727315 A CN 202310727315A CN 116759694 A CN116759694 A CN 116759694A
Authority
CN
China
Prior art keywords
electromagnetic valve
fire
water inlet
water outlet
way electromagnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310727315.5A
Other languages
Chinese (zh)
Inventor
杨南
郑虹
马志良
崔凤涛
楼涛
王记磊
郭恩宁
秋紫依
李文朋
袁占斌
刘倚天
李华楠
于海鹏
于胜业
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.)
Changchun Automotive Test Center Co ltd
Original Assignee
Changchun Automotive Test Center 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 Changchun Automotive Test Center Co ltd filed Critical Changchun Automotive Test Center Co ltd
Priority to CN202310727315.5A priority Critical patent/CN116759694A/en
Publication of CN116759694A publication Critical patent/CN116759694A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/28—Accessories for delivery devices, e.g. supports
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
    • A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention provides a power battery shell system, a battery and a vehicle, which are used for cooling a power battery and extinguishing the power battery. The fire extinguishing device comprises a lower shell, wherein a circulation channel is arranged on the side wall and the bottom of the lower shell, and is used as a cooling liquid channel and a fire extinguishing gas channel; the fire-fighting system is provided with a water inlet two-way electromagnetic valve, a water outlet three-way electromagnetic valve and a fire-fighting electromagnetic valve, wherein the water outlet three-way electromagnetic valve is connected with the cooling module and the fire-fighting module; the fire-extinguishing solenoid valve is located on the flow-through passage, facing the interior of the housing. The invention adopts a common channel mode of fire-fighting gas and cooling liquid, is embedded in the battery shell, can greatly save the space in the bag, and adopts the fire-fighting electromagnetic valve, thereby being capable of precisely spraying one-to-one and directional.

Description

Power battery shell system, battery and vehicle
Technical Field
The invention relates to the field of automobile power batteries, in particular to a power battery shell system with a fire-fighting and cooling common channel, and a battery and a vehicle applying the shell.
Background
With the development of new energy automobiles, electric automobiles are an important automobile type, and automobile power batteries are core components of the new energy automobiles. In recent years, with the increase of the holding quantity of electric vehicles, the situation that the whole combustion of the vehicles is scrapped due to the spontaneous combustion of the power batteries continuously occurs. In order to suppress combustion caused by thermal runaway of the power cells, various fire extinguishing modes are being developed by various host factories and component suppliers, including fire extinguishing measures arranged in the battery pack and schemes for delivering fire extinguishing agents through pipelines arranged outside the battery pack. Thermal management of power cells currently involves the placement of water cooled plates, as well as the integration of cooling channels within the lower housing.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a battery shell system which has a simple structure and can realize the common passage of fire-fighting gas and cooling liquid, and the battery shell system is matched with an electromagnetic valve to accurately position a battery module with thermal runaway so as to effectively realize fire fighting at the initial stage of combustion of the battery module.
The technical scheme of the invention is as follows:
the power battery shell system comprises an upper cover and a lower shell, wherein the side wall and the bottom of the lower shell are both provided with a hollow sandwich structure, a circulation channel is arranged in the hollow sandwich structure, a water inlet, a water outlet and an air jet are formed in the side wall of the lower shell, and the water inlet, the water outlet and the air jet are communicated with the circulation channel;
a water inlet two-way electromagnetic valve is arranged at the water inlet, one side of the water inlet two-way electromagnetic valve is connected with the water inlet, and the other side of the water inlet two-way electromagnetic valve is connected with the cooling module;
a water outlet three-way electromagnetic valve is arranged at the water outlet, one side of the water outlet three-way electromagnetic valve is connected with the water outlet, the other side of the water outlet three-way electromagnetic valve is connected with the cooling module, and the side of the water outlet three-way electromagnetic valve is connected with the fire-fighting module;
a fire-extinguishing electromagnetic valve is arranged at the air nozzle; one side of the fire-extinguishing electromagnetic valve is connected with the air nozzle, and the other side of the fire-extinguishing electromagnetic valve is provided with a spray column which faces the inside of the shell.
Preferably: the height of the water inlet is lower than that of the water outlet.
Preferably: the side wall circulation channel of the lower shell is communicated with the bottom circulation channel; the circulation channel on one side wall of the lower shell is separated, one side channel of the separation is connected with the water inlet, and the other side channel of the separation is connected with the water outlet.
Preferably: the air jet is arranged on one side wall or a plurality of side walls of the lower shell.
Preferably: the gas nozzles are horizontally arrayed on the side wall.
Preferably: and part of the air nozzles are connected with air nozzles, and the spray heads of the air nozzles are positioned above the batteries in the shell.
Preferably: the cooling module is a cooling liquid storage device and is provided with a water inlet pipe and a water return pipe, the water inlet pipe is connected with the water inlet two-way electromagnetic valve, and the water return pipe is connected with the water outlet three-way electromagnetic valve.
Preferably: the fire-fighting module is a high-pressure fire-extinguishing gas storage device and is provided with an air outlet pipe which is connected with a water outlet three-way electromagnetic valve.
Preferably: the fire-extinguishing electromagnetic valve is in a closed state when no fire occurs and is opened when the fire occurs.
The invention also provides a power battery and a vehicle, and the power battery and the vehicle are provided with the shell system.
The invention has the beneficial effects that:
1. the battery shell system adopts the mode of integrating the fluid channel in the shell wall and is embedded in the battery shell, so that the space in the bag can be greatly saved.
2. The invention adopts the mode of the common channel of the fire-fighting gas and the cooling liquid to reduce the spatial arrangement of the independent fire-fighting channel
3. The fire-extinguishing electromagnetic valve adopted by the invention can accurately perform one-to-one directional injection, can be used for firefighting of the battery module or the battery core with thermal runaway, can improve the firefighting efficiency and accuracy of the fire-extinguishing gas, can accurately perform firefighting in the initial stage of fire extinguishment, can improve the survival rate of other modules, and can improve the gradient utilization residual value of the battery pack with the thermal runaway.
4. The invention adopts the three-way electromagnetic valve to connect the fire-fighting module and the cooling module, is convenient for switching channels when the work is abnormal, and has simple structure.
5. The two-way electromagnetic valve adopted by the invention can be automatically closed when the cooling liquid flows out reversely.
6. The cooling liquid inlet of the shell is positioned at the lower part of the flow channel, and the cooling liquid outlet is positioned at the highest part of the internal flow channel, so that the shell is easy to store and easy to enter gas.
Drawings
Fig. 1 is a three-dimensional schematic of the general structure of the present invention.
Fig. 2 is a side schematic view of the general structure of the present invention.
Fig. 3 is a three-dimensional schematic of the housing structure of the present invention.
Fig. 4 is a schematic side view of the housing structure of the present invention.
Fig. 5 is a schematic view of the internal flow channels of the housing of the present invention.
FIG. 6 is a schematic view of the water inlet and outlet positions of the present invention.
Fig. 7 is a schematic diagram of the structure of the water inlet two-way electromagnetic valve of the invention.
Fig. 8 is a schematic diagram of the structure of the outlet three-way electromagnetic valve of the invention.
Fig. 9 is a schematic view of the fire extinguishing solenoid valve of the present invention.
Fig. 10 is a schematic view of the cooling module structure of the present invention.
Fig. 11 is a schematic view of the fire module structure of the present invention.
In the figure: the fire-fighting device comprises a lower shell, a water inlet two-way electromagnetic valve, a water outlet three-way electromagnetic valve, a fire-extinguishing electromagnetic valve, a cooling module, a fire-extinguishing module, a flow channel, a water inlet, a water outlet, a gas nozzle and a connecting table.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples. It should be understood by those skilled in the art that the following examples are not intended to limit the present invention only, and any equivalent changes or modifications made under the spirit of the present invention should be considered as falling within the scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a power battery housing system, which comprises an upper cover (not shown in the drawings) and a lower housing 1, wherein a water inlet two-way electromagnetic valve 2, a water outlet three-way electromagnetic valve 3, a fire extinguishing electromagnetic valve 4, a cooling module 5 and a fire fighting module 6 are arranged on the lower housing 1.
The lower shell 1 and the upper cover are combined with each other to form a relative airtight accommodating box, and the power battery is arranged in the accommodating box, wherein the lower shell and the upper cover can be fastened by bolts or fastened in a nested manner and can be connected in other manners. In the shell system, the lower shell is a main supporting body, other parts are basically arranged on the lower shell, and the upper cover plays roles of forming a complete box body with the lower shell to protect internal devices, preventing secondary injury caused by explosion of a battery in the box body and the like, so the invention focuses on the arrangement of the lower shell structure and parts thereof.
As shown in fig. 3 to 6, a lower case 1 of the present invention is integrally cast from metal aluminum or iron; the lower shell 1 is surrounded by a side wall and the bottom to form a containing cavity for containing a battery; the side wall and the bottom of the lower case 1 are both constructed with a hollow sandwich in which a gas/liquid flow passage 11 is provided so that gas or liquid can flow through the side wall and the bottom.
For the introduction of gas or liquid, a water inlet 12 and a water outlet 13 are provided in a side wall of the lower housing 1, wherein the water outlet 13 is also used for the intake of air. In order to enable the gas to be sprayed into the cavity, gas spraying ports 14 are formed in the side wall of the lower shell 1, and the gas spraying ports can be formed in one side wall or in multiple side walls. The water inlet 12, the water outlet 13 and the air jet 14 are all communicated with the circulation channel 11, and the invention sets the gas channel and the liquid channel to be in a common channel mode, and the water outlet 13 also serves as an air inlet.
The specific structure of the flow channel 11 is shown in fig. 5 and 6, the flow channels on the side wall provided with the water inlet 12 and the water outlet 13 are separated, one side channel is connected with the water inlet 12 and is used as a water inlet channel, the other side channel is connected with the water outlet 13 and is used as a water outlet channel, so that water inlet and water outlet are not confused; the water inlet channel and the water outlet channel are communicated with the channel at the bottom, the water inlet and outlet flows to the channel at the bottom as shown in fig. 5, the water enters from the water inlet 12, enters the channel at the bottom through the water inlet channel at one side of the side wall, enters the water outlet channel at the other side of the side wall from the channel at the bottom, and finally flows out through the water outlet 13.
In the flow channel, the flow direction of the air flow is opposite to the flow direction of the water, when a fire occurs, the fire extinguishing gas enters from the water outlet 13, the liquid is expelled from the water inlet 12, then the water inlet electromagnetic valve is closed, and the fire extinguishing gas is sprayed out from the air spraying port 14 to extinguish the fire.
Further, the water inlet 12 is arranged at a lower level than the water outlet 13, so that liquid can be reserved when the device plays a role in cooling, and gas is easy to enter when the device plays a role in extinguishing fire.
Further, the air jets 14 on the side walls of the housing are horizontally arrayed, aimed at the battery spray. Still further, gas lances may be connected through gas lances 14 to inject gas from above the battery.
Further, a connection stand 15 is cast on the outside of the lower case 1 for connection to the vehicle body, the connection stand 15 having a certain thickness and a bottom surface having a certain height from the bottom of the case.
A water inlet two-way electromagnetic valve 2 is arranged at the water inlet 12; a water outlet three-way electromagnetic valve 3 is arranged at the water outlet 13; at the air jet 14, a fire-extinguishing solenoid valve 4 is arranged. The water inlet two-way electromagnetic valve 2 provides a cooling liquid channel, the water outlet three-way electromagnetic valve 3 provides a fire extinguishing gas and cooling liquid channel, and the fire extinguishing electromagnetic valve 4 provides a fire extinguishing gas flow.
Fig. 7 is a schematic structural diagram of a water inlet two-way electromagnetic valve 2 according to the invention, wherein the water inlet two-way electromagnetic valve body is cubic, one side of the water inlet two-way electromagnetic valve body is provided with a stud, and the water inlet two-way electromagnetic valve body is screwed on a water inlet 12; the other side is provided with a connecting column which is connected with a water inlet pipe of the cooling module 5.
FIG. 8 is a schematic structural view of a three-way outlet solenoid valve 3 of the present invention, wherein the main body of the three-way outlet solenoid valve is cubic, one side of the three-way outlet solenoid valve is provided with a stud, and the three-way outlet solenoid valve is screwed on a water outlet 13; the other side is provided with a first connecting column which is connected with a water return pipe of the cooling module 5, and the other side is provided with a second connecting column which is connected with a gas pipe of the fire-fighting module 6. The first connecting column and the second connecting column can be communicated with the water outlet, so that water can be discharged and air can be introduced through the water outlet three-way electromagnetic valve 3.
Fig. 9 is a schematic structural view of a fire-extinguishing electromagnetic valve 4 of the present invention, wherein the main body of the fire-extinguishing electromagnetic valve 4 is a cube, one side of the fire-extinguishing electromagnetic valve is provided with a stud, and the fire-extinguishing electromagnetic valve is screwed on an air nozzle 14; the other side is provided with a spray column, and a spray hole is arranged in the spray column.
By arranging the water inlet two-way electromagnetic valve 2, the water outlet three-way electromagnetic valve 3 and the fire extinguishing electromagnetic valve 4, water inlet, water outlet, air inlet and air outlet can be controlled.
Fig. 10 is a schematic structural diagram of a cooling module 5 according to the present invention, wherein the cooling module 5 is a cooling liquid storage and cooling device, and has a water inlet pipe and a water return pipe, which are respectively connected with a water inlet two-way electromagnetic valve 2 and a water outlet three-way electromagnetic valve 3.
Fig. 11 is a schematic structural view of a fire-fighting module 6 according to the present invention, the fire-fighting module 6 being a high-pressure fire-extinguishing gas storage device, having a gas outlet pipe connected to a water outlet three-way electromagnetic valve 3.
The two-way water inlet electromagnetic valve 2, the three-way water outlet electromagnetic valve 3 and the fire extinguishing electromagnetic valve 4 are all electric signals to drive the opening valves, and are opened when the electric signals are received.
The water inlet two-way electromagnetic valve 2 is fixed on the outer side of the shell, is positioned at the lowest position of the side surface circulation channel of the shell, is in a normally open state in normal operation, and after cooling liquid flows out of the cooling module, the cooling liquid flows through the electromagnetic valve to enter the shell to provide cooling effect for the battery. When a fire occurs, the cooling liquid is pushed back to the cooling module by the fire-fighting gas, and the electromagnetic valve is closed after the liquid is detected to flow completely, so that the fire-fighting gas is sealed in the circulation channel.
And the water outlet three-way electromagnetic valve 3 is fixed on the outer side of the shell, is positioned at the highest position of the side surface circulation channel of the shell, and is simultaneously connected with the cooling module and the fire-fighting module. In normal operation, the solenoid valve is in a straight-through state, and coolant flows through the valve from the housing flow passage back into the cooling module. When the battery thermal runaway occurs, the electromagnetic valve is in a bypass state, a channel is provided for fire-extinguishing high-pressure gas flowing through the electromagnetic valve, and the high-pressure fire-extinguishing gas pushes the cooling liquid to flow reversely to occupy the whole cooling channel.
The fire-extinguishing solenoid valve 4 is normally closed and provides a passage for the coolant to seal. When the battery module is opened, fire extinguishing gas with fire extinguishing property passes through, and the fire extinguishing gas is sprayed to the battery module with thermal runaway.
The cooling module 5 of the invention has cooling liquid inside and can cool down the cooling liquid. The water inlet pipe and the water return pipe are respectively communicated with the water inlet two-way electromagnetic valve 2 and the water outlet three-way electromagnetic valve 3. When a thermal runaway fire occurs, the cooling liquid reversely flows back to the cooling module under the pushing of the high-pressure fire extinguishing gas.
The fire-fighting module 6 of the present invention stores or can generate high-pressure fire-extinguishing gas such as carbon dioxide, heptafluoropropane, etc. When a thermal runaway signal is received, the fire extinguishing gas is released, flows through the water outlet three-way electromagnetic valve 3, is sprayed out at the position of the fire extinguishing electromagnetic valve 4 which is opened in a directional mode, and achieves the point-to-point fire extinguishing effect on the thermal runaway battery module.
The upper cover and the lower shell of the invention can also be made of other metal or nonmetal materials with good heat conductivity. The flow channels within may vary from other space configuration types.
The fire extinguishing gas of the present invention may be other fire extinguishing gas.
The invention also provides a battery and a vehicle with the shell system.

Claims (10)

1. A power battery housing system comprising an upper cover and a lower housing, characterized in that:
the side wall and the bottom of the lower shell are both provided with a hollow sandwich structure, a circulation channel is arranged in the hollow sandwich structure, a water inlet, a water outlet and an air jet are formed in the side wall of the lower shell, and the water inlet, the water outlet and the air jet are communicated with the circulation channel;
a water inlet two-way electromagnetic valve is arranged at the water inlet, one side of the water inlet two-way electromagnetic valve is connected with the water inlet, and the other side of the water inlet two-way electromagnetic valve is connected with the cooling module;
a water outlet three-way electromagnetic valve is arranged at the water outlet, one side of the water outlet three-way electromagnetic valve is connected with the water outlet, the other side of the water outlet three-way electromagnetic valve is connected with the cooling module, and the side of the water outlet three-way electromagnetic valve is connected with the fire-fighting module;
a fire-extinguishing electromagnetic valve is arranged at the air nozzle; one side of the fire-extinguishing electromagnetic valve is connected with the air nozzle, and the other side of the fire-extinguishing electromagnetic valve is provided with a spray column which faces the inside of the shell.
2. The power cell housing system of claim 1, wherein: the height of the water inlet is lower than that of the water outlet.
3. The power cell housing system according to claim 1 or 2, characterized in that: the side wall circulation channel of the lower shell is communicated with the bottom circulation channel;
the circulation channel on one side wall of the lower shell is separated, one side channel of the separation is connected with the water inlet, and the other side channel of the separation is connected with the water outlet.
4. The power cell housing system of claim 1, wherein:
the air jet is arranged on one side wall or a plurality of side walls of the lower shell.
5. The power cell housing system of claim 4, wherein:
the gas nozzles are horizontally arrayed on the side wall.
6. The power cell housing system of claim 1 or 4 or 5, wherein:
and part of the air nozzles are connected with air nozzles, and the spray heads of the air nozzles are positioned above the batteries in the shell.
7. The power cell housing system of claim 1, wherein:
the cooling module is a cooling liquid storage device and is provided with a water inlet pipe and a water return pipe, the water inlet pipe is connected with the water inlet two-way electromagnetic valve, and the water return pipe is connected with the water outlet three-way electromagnetic valve.
8. The power cell housing system of claim 1, wherein:
the fire-fighting module is a high-pressure fire-extinguishing gas storage device and is provided with an air outlet pipe which is connected with a water outlet three-way electromagnetic valve.
9. The power cell housing system of claim 1, wherein:
the fire-extinguishing electromagnetic valve is in a closed state when no fire occurs and is opened when the fire occurs.
10. A power battery and vehicle, characterized in that: with a housing system according to any one of claims 1-9.
CN202310727315.5A 2023-06-19 2023-06-19 Power battery shell system, battery and vehicle Pending CN116759694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310727315.5A CN116759694A (en) 2023-06-19 2023-06-19 Power battery shell system, battery and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310727315.5A CN116759694A (en) 2023-06-19 2023-06-19 Power battery shell system, battery and vehicle

Publications (1)

Publication Number Publication Date
CN116759694A true CN116759694A (en) 2023-09-15

Family

ID=87958475

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310727315.5A Pending CN116759694A (en) 2023-06-19 2023-06-19 Power battery shell system, battery and vehicle

Country Status (1)

Country Link
CN (1) CN116759694A (en)

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