CN111162348A - Electric automobile with emergent fire extinguishing systems - Google Patents

Electric automobile with emergent fire extinguishing systems Download PDF

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Publication number
CN111162348A
CN111162348A CN202010072936.0A CN202010072936A CN111162348A CN 111162348 A CN111162348 A CN 111162348A CN 202010072936 A CN202010072936 A CN 202010072936A CN 111162348 A CN111162348 A CN 111162348A
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CN
China
Prior art keywords
water
pressure
fire extinguishing
battery box
water inlet
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Pending
Application number
CN202010072936.0A
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Chinese (zh)
Inventor
段尚国
姜迪
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Shanghai Weile Technology Co Ltd
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Shanghai Weile Technology Co Ltd
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Publication date
Application filed by Shanghai Weile Technology Co Ltd filed Critical Shanghai Weile Technology Co Ltd
Priority to CN202010072936.0A priority Critical patent/CN111162348A/en
Publication of CN111162348A publication Critical patent/CN111162348A/en
Pending legal-status Critical Current

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    • 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
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/448—End of discharge regulating measures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • 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
    • H01M10/63—Control systems
    • 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
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • 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
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
    • 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
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • 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
    • 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
    • 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

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

Abstract

The invention provides an electric automobile battery box, an electric automobile with an emergency fire-extinguishing system and an emergency fire-extinguishing method of the electric automobile, wherein the emergency fire-extinguishing method comprises an automobile body and the battery box positioned on the automobile body, the battery box comprises a box body and a battery cell arranged in the box body, the box body is provided with a water inlet and a water outlet, the automobile body comprises an automobile body shell, the automobile body shell is provided with a connector for inserting a high-pressure water pipe, and the automobile body is provided with a first fluid pipeline for connecting the connector to the water inlet of the battery box; the automobile body further comprises a discharge port, and a second fluid pipeline for connecting the discharge port to a discharge port of the battery box is distributed on the automobile body. This system directly carries out the water injection through fire-fighting equipment to the battery box, directly puts out a fire to the source of a fire and handles, has promoted the speed and the efficiency of putting out a fire.

Description

Electric automobile with emergent fire extinguishing systems
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a battery box of an electric automobile, an electric automobile with an emergency fire extinguishing system and an emergency fire extinguishing method of the electric automobile.
Background
The electric automobile is a vehicle driven by a motor to run by taking a vehicle-mounted battery cell as power, wherein the vehicle-mounted battery cell usually adopts a storage battery, the storage battery is generally fixed on the electric automobile in a battery cell form, and a battery box is required to be placed in the fixing process of the battery cell and is fixed in an automobile body.
Most of the existing electric automobiles are caused by vehicle ignition and combustion due to short circuit, overcharge and the like. Many of such fires start from the battery cell and spread to other parts of the vehicle body. Usually, the best fire extinguishing opportunity is missed already when the driver observes the fire. The traditional fire extinguishing system and the battery system of the electric automobile are separately arranged, the battery system is sealed inside the automobile body, and the fire fighting equipment cannot directly go deep into an ignition source and cannot effectively extinguish fire in time.
Disclosure of Invention
The application provides electric automobile battery box, have emergency fire extinguishing system's electric automobile and electric automobile's emergent fire extinguishing method, can't be directly, quick, effectively put out a fire the problem of electric automobile for solving the aforesaid.
In order to achieve the purpose, the invention adopts the following technical scheme:
the first aspect of the application provides an electric automobile battery box, include the box body and establish this internal battery electricity core of box, be equipped with water inlet and outlet on the box body.
In a preferred embodiment, a cover plate is arranged above the box body, and the box body is detachably connected with the cover plate; the cover plate is fixedly provided with a fire extinguishing water pipe towards one side inside the box body, and the water inlet is communicated with one end of the fire extinguishing water pipe.
In a more preferred embodiment, the other end of the fire extinguishing water pipe is closed; the surface of the fire extinguishing water pipe is provided with a water spraying opening, and the water spraying opening is arranged towards the battery cell.
In a preferred embodiment, a sensor is provided in the cover plate facing the case body. More preferably, the sensor is located on the inner wall of the box body or extends from the inner wall of the box body to the inner cavity of the box body.
In a preferred embodiment, the drain opening is positioned higher than the water inlet or the water spout. More preferably, the water inlet and/or the water outlet are/is arranged at the top of the box body, and the water outlet is arranged at the top of the box body. Or, more preferably, the water inlet and/or the water outlet are/is arranged at the bottom of the box body, and the water outlet is arranged at the top of the box body.
In a preferred embodiment, the drain opening is positioned below the water inlet or the water jet. More preferably, the water inlet and/or the water outlet are/is arranged at the top of the box body, and the water outlet is arranged at the bottom of the box body.
Preferably, the water inlet and the water outlet are provided with sealing covers which can be opened under the impact of high-pressure water. More preferably, the sealing cover is a metal sheet for sealing the water inlet and the water outlet, and the pressure threshold value at the joint of the metal sheet and the water inlet or the water outlet is smaller than the water pressure; or the metal sheet and the water inlet or the water outlet are of an integrally formed structure, the metal sheet comprises a first area and a second area, the pressure threshold of the first area is smaller than the water pressure, and the pressure threshold of the second area is larger than the water pressure.
More preferably, the sealing cover is a sealing film for sealing the water inlet and the water outlet, and the pressure threshold of the sealing film is smaller than the water pressure.
More preferably, the sealing cover comprises a first sealing area with a hole and a sealing block for sealing the hole of the first sealing area, the sealing cover further comprises a support, one side of the first sealing area, which is back to the water pressure direction, is fixedly connected with the support, the support is fixedly connected with one end of an elastic piece, the other end of the elastic piece is fixedly connected with one side of the sealing block, which is back to the water pressure direction, the elastic piece applies a force to the sealing block to enable the sealing block to move towards the first sealing area and seal the hole, and the pressure threshold of the elastic piece is smaller than the water pressure.
Preferably, the water spray opening and/or the water inlet opening are/is provided with a pressure valve for controlling water inlet into the box body; the outlet end of the pressure valve faces the box body.
More preferably, the water outlet is provided with a second pressure valve, and the inlet end of the second pressure valve faces the box body.
More preferably, the pressure of the pressure valve and/or the second pressure valve is adjustable.
Preferably, the box body comprises a bottom plate and a baffle, the bottom plate is an aluminum honeycomb plate, the baffle is an aluminum plate, and the baffle and the bottom plate jointly enclose a battery containing cavity. For example, the four baffles are fixed on the bottom plate in an end-to-end manner to form the side wall of the box body, and the four baffles and the bottom plate jointly enclose a rectangular battery cell containing cavity.
Preferably, the apron is aluminum plate, the apron lid is located the battery holds the opening part in chamber, is used for sealing the battery holds the chamber.
Preferably, a power taking plate is arranged in the cover plate, a contact mounting hole is formed in the power taking plate, and a contact is arranged in the contact mounting hole.
Preferably, the battery box still includes the reinforcing plate, the reinforcing plate is aluminium matter honeycomb panel, and is a plurality of the reinforcing plate set up respectively in the battery holds the intracavity, be used for with the battery holds the storehouse and separates into a plurality of batteries and holds the portion. For example, the reinforcing plate is provided with three, and three the reinforcing plate is parallel with same baffle setting, will battery holds the chamber and separates into four battery and holds the portion.
Preferably, the battery cell inside the battery box is a lithium battery.
Preferably, the sensors include temperature sensors, pressure sensors and smoke sensors.
The second aspect of the application provides an electric automobile with an emergency fire extinguishing system, which comprises an automobile body and the battery box positioned on the automobile body, wherein the automobile body comprises an automobile body shell, the automobile body shell is provided with a connector for inserting a high-pressure water pipe, and the automobile body is provided with a first fluid pipeline for connecting the connector to a water inlet of the battery box; the automobile body further comprises a discharge port, a second fluid pipeline is arranged on the automobile body and connected with the discharge port to a battery box water discharge port, and a battery box water inlet is connected to an automobile body shell water inlet through a fire extinguishing water pipe.
Preferably, the electric automobile with the emergency fire extinguishing system further comprises a display control assembly and a detection assembly; the display control assembly comprises a display and two controller area network buses connected with the display, and the two controller area network buses are connected with the detection assembly; the detection assembly is arranged on the periphery of the battery box body; the detection assembly is connected with the sensor of the battery box.
More preferably, the sensor includes any one of a temperature sensor, a pressure sensor, and a smoke sensor, which are connected to and transmit signals to a controller of the electric vehicle.
Preferably, the electric automobile is provided with a water tank, the water tank is connected to a water inlet through a water pipe and communicated with a fire extinguishing water pipe, and a water pump is arranged at the joint of the water tank and the fire extinguishing water pipe; the water pump is provided with a control valve, and the control valve is connected with a controller of the electric automobile; and a water outlet of the battery box is connected with a water drainage pipe and communicated with the outside of the electric automobile.
More preferably, the water pump is provided with a control valve, and the control valve is connected with a controller of an electric automobile.
More preferably, one side of the display is provided with an alarm device, and the alarm device is electrically connected with a controller of the electric automobile.
Further, the alarm device comprises a state indicator lamp and a buzzer, wherein the state indicator lamp and the buzzer are used for prompting the state of the battery box. In a preferred embodiment, when the temperature is higher than normal, the status indicator lamp flickers; when the temperature is higher than normal and the smoke concentration is higher than normal, the state indicating lamp is normally on and the buzzer sounds.
Preferably, the sensor still includes flame sensor, carbon monoxide sensor and combustible gas sensor, flame sensor, carbon monoxide sensor and combustible gas sensor all attach and set up on the battery box.
Preferably, the electric automobile further comprises a fire extinguishing starting switch, the controlled end of the fire extinguishing starting switch is electrically connected with the control valve, and the control end of the fire extinguishing starting switch is connected with the controller.
More preferably, the fire extinguishing starting switch comprises an automatic switch and a manual switch, the automatic switch is connected with the controller, and the manual switch is arranged on the display.
In a third aspect, the present application provides an emergency fire extinguishing method for an electric vehicle, including:
the sensor collects data of temperature values, pressure values and smoke values in the battery box;
the detection assembly receives the data signals collected by the sensor, judges the normal value of the collected data signals and marks the normal value and the abnormal value;
the display component displays the data signal received by the self-detection component, displays the acquired data for the data marked with the normal value, displays the acquired data for the data marked with the abnormal value, and lights the state indicator lamp and the buzzer;
when the data received by the detection assembly is an abnormal value, cutting off a battery cell of the electric automobile; opening a connector on the shell of the vehicle body, inserting a high-pressure water pipe into the connector, and providing high-pressure water into the connector; high-pressure water flows to the water inlet through the first fluid pipeline;
when the pressure of water at the water inlet reaches a pressure threshold value, the pressure valve is opened under the action of high-pressure water pressure, and high-pressure water enters the battery box to extinguish a fire; and (3) injecting water into the battery box, and opening the second pressure valve at the water outlet to release pressure and/or discharge water when the pressure in the battery box is increased to be larger than a pressure threshold value.
In a preferred embodiment, when the water outlet is higher than the water inlet or the water spray, the water inlet and/or the water spray are/is arranged at the top of the case body, the water outlet is arranged at the top of the case body, high-pressure water enters the battery case through the water inlet or the water spray, is sprayed to the battery cell through the water inlet or the water spray and then is collected in the battery case, the water level gradually rises along with the continuous injection of the high-pressure water, and when the water level reaches the water outlet, the water level is discharged out of the battery case through the water outlet.
In a preferred embodiment, when the water outlet is higher than the water inlet or the water outlet, the water inlet and/or the water outlet is/are arranged at the bottom of the case body, the water outlet is arranged at the top of the case body, high-pressure water enters the battery case through the water inlet or the water outlet, the water level gradually rises along with the continuous injection of the high-pressure water so as to immerse the battery cell, and when the water level reaches the water outlet, the water level is discharged out of the battery case through the water outlet.
In a preferred embodiment, the drain opening is positioned below the water inlet or the water jet. More preferably, the water inlet and/or the water outlet are/is arranged at the top of the box body, and the water outlet is arranged at the bottom of the box body.
In a preferred embodiment, when the data received by the detection assembly is an abnormal value, the controller automatically opens the control valve, the water pump pumps water in the water tank into the fire extinguishing water pipe through the water inlet, and the water is sprayed onto the battery cell through the water spray nozzle to cool the battery cell, flows to the water outlet at the bottom of the box body, and is discharged to the outside of the electric automobile through the water discharge pipe.
Preferably, when the data that detection element received is the abnormal value, the driver observes the status indicator lamp on the display and hears the buzzer and makes a sound, and the control valve is opened manually, and the water pump is in with the water pump inlet pipe in the water tank through the water inlet to the water pipe of putting out a fire, sprays on battery electric core through the water jet again, cools off the battery electric core, and the outlet that flows to box body bottom again is arranged to the electric automobile outside through the drain pipe.
In the context of the present application, the high-pressure water means a pressure equal to or higher than the pressure threshold of the pressure valve, if not specified otherwise.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the utility model provides an electric automobile with emergent fire extinguishing system is connected with fire-fighting equipment through electric automobile body shell water inlet, makes water directly get into the battery box after the water pipe of putting out a fire, puts out the fire source to cool down the cooling to the battery box. This system directly carries out the water injection through fire-fighting equipment to the battery box, directly puts out a fire to the source of a fire and handles, has promoted the speed and the efficiency of putting out a fire.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a battery box according to an embodiment.
FIG. 2 is a schematic view of the compressed state of the elastic member of the sealing cover according to the embodiment.
FIG. 3 is a schematic structural diagram of a battery box according to the second embodiment.
FIG. 4 is a schematic structural diagram of a three-cell box according to an embodiment.
Fig. 5 is a schematic structural diagram of positions of the four battery boxes and the electric vehicle according to the embodiment.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
This embodiment provides electric automobile battery box, include the box body and establish this internal battery electricity core of box, be equipped with water inlet 4 and outlet 5 on the box body. A cover plate is arranged above the box body, and the box body is detachably connected with the cover plate; the cover plate is fixedly provided with a fire extinguishing water pipe towards one side inside the box body, and the water inlet 4 is communicated with one end of the fire extinguishing water pipe. The other end of the fire extinguishing water pipe is closed; the surface of the fire extinguishing water pipe is provided with a water spraying opening, and the water spraying opening is arranged towards the battery cell.
When the water outlet 5 is higher than the water inlet 4 or the water spray opening, the water inlet 4 and/or the water spray opening are/is arranged at the top of the box body, the water outlet 5 is arranged at the top of the box body, high-pressure water is poured to the battery cell through the water inlet 4 through the water spray opening and then is collected in the battery box, the water level gradually rises along with the continuous injection of the high-pressure water, and when the water level reaches the water outlet 5, the water is discharged out of the battery box through the water outlet 5.
In a preferred embodiment, the water inlet 4 and the water outlet 5 are provided with sealing covers which can be opened under the impact of high-pressure water. The sealing cover is a metal sheet for sealing the water inlet 4 and the water outlet 5, and the pressure threshold value of the joint of the metal sheet and the water inlet 4 or the water outlet 5 is smaller than the water pressure. When the water pressure is higher than the pressure threshold value, the metal sheet is flushed by water, and the water flows into the battery box through the water inlet 4 or flows out of the battery box through the water outlet 5. Or the metal sheet and the water inlet 4 or the water outlet 5 are integrally formed, the metal sheet comprises a first area and a second area, the pressure threshold of the first area is smaller than the water pressure, and the pressure threshold of the second area is larger than the water pressure. When the water pressure is higher than the pressure threshold value, the metal sheet is flushed by water, and the water flows into the battery box through the water inlet 4 or flows out of the battery box through the water outlet 5. When the water pressure is higher than the pressure threshold value, the first area of the metal sheet is flushed by water, and the water flows into the battery box through the water inlet 4 or flows out of the battery box through the water outlet 5.
In a preferred embodiment, the water inlet 4 and the water outlet 5 are provided with sealing covers which can be opened under the impact of high-pressure water. The sealing cover is a sealing film used for sealing the water inlet 4 or the water outlet 5, and the pressure threshold of the sealing film is smaller than the water pressure. When the water pressure is higher than the pressure threshold value, the sealing membrane is broken by water, and the water flows into the battery box through the water inlet 4 or flows out of the battery box through the water outlet 5.
In a preferred embodiment, the water inlet 4 and the water outlet 5 are provided with sealing covers which can be opened under the impact of high-pressure water. The sealing cover comprises a first sealing area 6 with a hole and a sealing block 6 used for sealing the hole of the first sealing area 6, the sealing cover further comprises a support 8, one side, back to the water pressure direction, of the first sealing area 6 is fixedly connected with the support 8, the support 8 is fixedly connected with one end of an elastic piece 9, the other end of the elastic piece 9 is fixedly connected with one side, back to the water pressure direction, of the sealing block 6, the elastic piece 9 applies a force to the sealing block 6, so that the sealing block 6 moves towards the first sealing area 6 and seals the hole, and the pressure threshold value of the elastic piece 9 is smaller than the water pressure. When the water pressure is greater than the pressure threshold, the blocking block 6 is driven by the water pressure of the water inlet 4 or the water outlet 5 to move towards the water pressure direction by overcoming the acting force of the elastic member 9, so that the blocking block 6 is separated from the hole of the first blocking area 6 of the water inlet 4 or the water outlet 5, as shown in fig. 2, and then water flows into the battery box through the water inlet 4 or flows out of the battery box through the water outlet 5.
In a preferred embodiment, a sensor is provided in the cover plate facing the case body. More preferably, the sensor is located on the inner wall of the box body or extends from the inner wall of the box body to the inner cavity of the box body.
In a preferred embodiment, said water and/or water inlet 4 is provided with a pressure valve for controlling the water intake into the interior of the tank body; the water outlet 5 is provided with a second pressure valve, and the inlet end of the second pressure valve faces the box body. The outlet end of the pressure valve faces the box body, when the high-pressure water passes through the water spraying opening and/or the water inlet 4, and the pressure of the water at the water inlet 4 reaches a pressure threshold value, the pressure valve is opened under the action of the pressure of the high-pressure water, and the high-pressure water enters the battery box to extinguish the fire; and (3) injecting water into the battery box, and when the pressure in the battery box is increased to be larger than a pressure threshold value, opening the second pressure valve at the water outlet 5 to release pressure and/or drain water. More preferably, the pressure of the pressure valve and/or the second pressure valve is adjustable, and when the pressure of the external water cannot reach a high pressure, the pressure threshold of the pressure valve can be adjusted through the control end of the electric vehicle, so that smooth water injection is realized.
Example two
Based on the first embodiment, when the water outlet 5 is higher than the water inlet 4 or the water spray, the water inlet 4 and/or the water spray are/is arranged at the bottom of the box body, the water outlet 5 is arranged at the top of the box body, high-pressure water enters the battery box through the water inlet 4 or the water spray, the water level gradually rises along with the continuous injection of the high-pressure water so as to immerse the battery cell, and when the water level reaches the water outlet 5, the water level is discharged out of the battery box through the water outlet 5.
EXAMPLE III
Based on the first embodiment, the water outlet 5 is lower than the water inlet 4 or the water jet, the water inlet 4 and/or the water jet are disposed at the top of the box body, and the water outlet 5 is disposed at the bottom of the box body. The high-pressure water is sprayed to the battery cell through the water inlet 4 and the water spray nozzle, cools the battery cell, and then flows to the water outlet 5 at the bottom of the box body to be discharged out of the battery box.
Example four
The embodiment provides an electric automobile 1 with an emergency fire extinguishing system, which comprises an automobile body and the battery box 2 positioned on the automobile body, wherein the automobile body comprises an automobile body shell, the automobile body shell is provided with a connector for inserting a high-pressure water pipe, and the automobile body is provided with a first fluid pipeline for connecting the connector to a water inlet 4 of the battery box 2; the automobile body further comprises a discharge port, a second fluid pipeline is arranged on the automobile body and connected with the discharge port to the water discharge port of the battery box 2, and the water inlet 4 of the battery box 2 is connected to the shell of the automobile body through the fire extinguishing water pipe 3.
The electric automobile 1 with the emergency fire extinguishing system further comprises a display control assembly and a detection assembly; the display control assembly comprises a display and two controller area network buses connected with the display, and the two controller area network buses are connected with the detection assembly; the detection assembly is arranged on the periphery of the box body of the battery box 2; the detection component is connected with the sensor of the battery box 2.
The sensor includes any one of a temperature sensor, a pressure sensor and a smoke sensor, and the sensors are all connected to the controller of the electric vehicle 1 and send signals to the controller of the electric vehicle 1.
The electric automobile 1 is provided with a water tank, the water tank is connected to a water inlet 4 through a water pipe and communicated with a fire extinguishing water pipe 3, and a water pump is arranged at the joint of the water tank and the fire extinguishing water pipe 3; the water pump is provided with a control valve, and the control valve is connected with a controller of the electric automobile 1; and a water outlet of the battery box 2 is connected with a water drainage pipe to lead the water drainage pipe to the outside of the electric automobile 1.
The water pump is provided with a control valve, and the control valve is connected with a controller of the electric automobile 1.
In a preferred embodiment, when the data received by the detection assembly is an abnormal value, the controller automatically opens the control valve, the water pump pumps water in the water tank into the water pipe 3 through the water inlet 4 and then sprays the water to the battery cell through the water spray nozzle, the battery cell is cooled and cooled, and the water flows to the water outlet at the bottom of the box body and is discharged to the outside of the electric vehicle 1 through the water discharge pipe.
EXAMPLE five
Based on above-mentioned embodiment four, when the data that detection module received is the abnormal value, the driver observes that the status indicator lamp on the display is bright and hears the buzzer and makes a sound, and the control valve is opened manually, and the water pump inlet pipe in the water tank is through water inlet 4 to in the water pipe 3 of putting out a fire to the water pump, sprays on the battery electricity core through the water jet again, carries out cooling to the battery electricity core, and the outlet that flows to box body bottom again is arranged to 1 outsides of electric automobile through the drain pipe.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.

Claims (10)

1. The battery box of the electric automobile is characterized by comprising a box body and a battery cell arranged in the box body, wherein the box body is provided with a water inlet and a water outlet.
2. The battery box of the electric automobile as claimed in claim 1, wherein a cover plate is arranged above the box body, and the box body is detachably connected with the cover plate; the cover plate is fixedly provided with a fire extinguishing water pipe towards one side inside the box body, and the water inlet is communicated with one end of the fire extinguishing water pipe.
3. The emergency fire extinguishing system for electric vehicles according to claim 2, wherein the other end of the fire extinguishing water pipe is closed; the surface of the fire extinguishing water pipe is provided with a water spraying opening, and the water spraying opening is arranged towards the battery cell.
4. The emergency fire extinguishing system for electric vehicles according to claim 2, characterized in that a sensor is provided in the cover plate towards the tank body; the sensor is positioned on the inner wall of the box body, or extends to the inner cavity of the box body from the inner wall of the box body.
5. The emergency fire extinguishing system for electric vehicles according to claim 1, wherein the water outlet is located higher than the water inlet or the water jet; the water inlet and/or the water spray opening are/is arranged at the top of the box body, and the water discharge opening is arranged at the top of the box body; or the water inlet and/or the water spray opening are/is arranged at the bottom of the box body, and the water discharge opening is arranged at the top of the box body.
6. The emergency fire extinguishing system for electric vehicles according to claim 1, wherein the water outlet is located below a water inlet or a water spout, the water inlet and/or the water spout is disposed at the top of the tank body, and the water outlet is disposed at the bottom of the tank body.
7. The electric automobile with the emergency fire extinguishing system is characterized by comprising an automobile body and the battery box positioned on the automobile body, wherein the automobile body comprises an automobile body shell, the automobile body shell is provided with a connector for inserting a high-pressure water pipe, and the automobile body is provided with a first fluid pipeline for connecting the connector to a water inlet of the battery box; the automobile body further comprises a discharge port, a second fluid pipeline is arranged on the automobile body and connected with the discharge port to a battery box water discharge port, and a battery box water inlet is connected to an automobile body shell water inlet through a fire extinguishing water pipe.
8. The emergency fire extinguishing system for electric vehicles according to claim 7, wherein the electric vehicle with the emergency fire extinguishing system further comprises a display control component and a detection component; the display control assembly comprises a display and two controller area network buses connected with the display, and the two controller area network buses are connected with the detection assembly; the detection assembly is arranged on the periphery of the battery box body; the detection assembly is connected with the sensor of the battery box.
9. The emergency fire extinguishing system for the electric automobile according to claim 7, wherein a water tank of the electric automobile is connected to a water inlet through a water pipe and communicated with a fire extinguishing water pipe, and a water pump is arranged at the joint of the water tank and the fire extinguishing water pipe; the water pump is provided with a control valve, and the control valve is connected with a controller of the electric automobile; and a water outlet of the battery box is connected with a water drainage pipe and communicated with the outside of the electric automobile.
10. An emergency fire extinguishing method for an electric automobile is characterized by comprising the following steps:
the sensor collects data of temperature values, pressure values and smoke values in the battery box;
the detection assembly receives the data signals collected by the sensor, judges the normal value of the collected data signals and marks the normal value and the abnormal value;
the display component displays the data signal received by the self-detection component, displays the acquired data for the data marked with the normal value, displays the acquired data for the data marked with the abnormal value, and lights the state indicator lamp and the buzzer;
when the data received by the detection assembly is an abnormal value, cutting off a battery cell of the electric automobile; opening a connector on the shell of the vehicle body, inserting a high-pressure water pipe into the connector, and providing high-pressure water into the connector; high-pressure water flows to the water inlet through the first fluid pipeline;
when the pressure of water at the water inlet reaches a pressure threshold value, the pressure valve is opened under the action of high-pressure water pressure, and high-pressure water enters the battery box to extinguish a fire; and (3) injecting water into the battery box, and opening the second pressure valve at the water outlet to release pressure and/or discharge water when the pressure in the battery box is increased to be larger than a pressure threshold value.
CN202010072936.0A 2020-01-22 2020-01-22 Electric automobile with emergent fire extinguishing systems Pending CN111162348A (en)

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CN111697178A (en) * 2020-06-08 2020-09-22 南京信息职业技术学院 New energy automobile battery box fixing device
CN112208332A (en) * 2020-10-13 2021-01-12 赵平平 Battery compartment throwing-off structure of battery-replacing type electric automobile
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CN114497814A (en) * 2022-04-18 2022-05-13 深圳市尚亿芯科技有限公司 Lithium battery box with automatic fire extinguishing and explosion preventing functions
CN114497814B (en) * 2022-04-18 2022-07-01 深圳市尚亿芯科技有限公司 Lithium battery box with automatic fire extinguishing and explosion preventing functions

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