CN111544800A - Fire extinguisher control device of power battery box - Google Patents
Fire extinguisher control device of power battery box Download PDFInfo
- Publication number
- CN111544800A CN111544800A CN202010397475.4A CN202010397475A CN111544800A CN 111544800 A CN111544800 A CN 111544800A CN 202010397475 A CN202010397475 A CN 202010397475A CN 111544800 A CN111544800 A CN 111544800A
- Authority
- CN
- China
- Prior art keywords
- management system
- battery management
- wire harness
- battery
- control
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- A62C31/005—Delivery of fire-extinguishing material using nozzles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a fire extinguisher control device of a power battery box, which comprises an infrared thermometer, a nozzle, a spray pipe, a control valve, a spray head, a fire extinguisher, a control switch, a data concentrator, a battery management system, a sensing assembly and a relay, wherein the nozzle is arranged at one side of the battery box and connected with the spray pipe, the spray head is arranged at the other end of the spray pipe, the fire extinguisher is arranged at one side of the spray head, the control valve is arranged on the spray head, the infrared thermometer is arranged at the upper side of the battery box, a temperature sampling wire harness is connected with the battery management system, a data transmission wire harness is connected with the data concentrator, a second control wire harness is connected with the control switch, a voltage sampling wire harness is connected with the battery management system, the sensing assembly is arranged in the battery box, a signal transmission wire harness is connected with the battery management system, effectively preventing the fire extinguisher from mistakenly spraying.
Description
Technical Field
The invention relates to a fire extinguisher control device, in particular to a fire extinguisher control device of a power battery box, and belongs to the technical field of application of power batteries of electric automobiles.
Background
The electric automobile is a vehicle which takes a vehicle-mounted power supply as power and drives wheels to run by using a motor, and meets various requirements of road traffic and safety regulations. The automobile has a small influence on the environment, so that the prospect is widely seen, but the current technology is not mature. The electric automobile mainly comprises an electric drive, a speed regulation control device, a transmission device, a steering device, a braking device, a working device and the like, wherein the electric drive consists of a power supply and a driving motor, the electric drive mainly provides electric energy for the driving motor of the electric automobile, and the electric motor converts the electric energy of the power supply into mechanical energy. The most widely used power source at present is the lead-acid storage battery, but with the development of electric automobile technology, the lead-acid storage battery is gradually replaced by other storage batteries due to low energy, slow charging speed and short service life. The developing power supplies mainly comprise sodium-sulfur batteries, nickel-cadmium batteries, lithium batteries, fuel batteries and the like, and the application of the novel power supplies opens up a wide prospect for the development of electric automobiles.
At present, an electric automobile with zero discharge capacity has become the main force of an urban new energy automobile, and a power battery serving as a power source of the electric automobile often burns to cause fire, so that a fire extinguisher needs to be added to a battery box to meet the requirement that the power battery can be normally used. The control methods of battery box fire extinguishers on the market are many, but a control system of the fire extinguisher is usually adopted, only smoke and temperature in the battery box can be judged on one side, but the performance of a power battery cannot be judged, so that misspraying of the fire extinguisher can be caused, and therefore, a control device of the power battery box fire extinguisher is provided.
Disclosure of Invention
The invention aims to provide a fire extinguisher control device of a power battery box, which can monitor the fire condition of the battery box in real time and accurately monitor the fire condition in the power battery box through the arrangement of an induction component consisting of a smoke sensor, a temperature sensor and a flame sensor and an infrared thermometer; the voltage sampling wire harness is arranged, so that voltage signals of a plurality of power batteries can be monitored in real time, and the health state and the functional state of the power batteries can be known in real time;
through the arrangement of the battery management system, the data concentrator, the control switch and the control valve, the fire condition in the battery box can be comprehensively judged, so that whether the control valve on the fire extinguisher is started to extinguish the fire or not is determined, the fire in the battery box is accurately judged, and the fire extinguisher is prevented from being sprayed by mistake; through the arrangement of the fire extinguisher, the spray nozzle, the spray pipe and the nozzle, when a fire disaster happens inside the battery box, the fire extinguishing agent in the fire extinguisher is sprayed into the battery box through the spray nozzle, the spray pipe and the nozzle to extinguish the fire; through the setting of relay and third control pencil, when the conflagration breaks out, can in time cut off power battery to electric automobile's power supply circuit.
The technical problem solved by the invention is as follows:
(1) in the running state and the non-running state of the electric automobile, how to monitor the condition of the battery box and the condition of the power battery in real time and how to accurately judge the fire condition of the battery box so as to prevent the fire extinguisher from being sprayed by mistake;
(2) when a fire disaster occurs in the driving state and the non-driving state of the electric automobile, the fire extinguishing method can effectively extinguish the fire of the battery box and the power battery in time, and when the fire disaster occurs in the power battery box, the power supply circuit of the power battery box to the electric automobile can be effectively cut off in time.
The purpose of the invention can be realized by the following technical scheme:
a fire extinguisher control device of a power battery box comprises a battery box, a power battery, an infrared thermometer, a nozzle, a spray pipe, a temperature sampling wire harness, a control valve, a spray head, a fire extinguisher, a first control wire harness, a control switch, a second control wire harness, a data concentrator, a data transmission wire harness, a battery management system, a voltage sampling wire harness, a signal transmission wire harness, an induction component, a third control wire harness and a relay;
the battery box is internally provided with a plurality of power batteries, one side of the battery box is provided with a nozzle, the nozzle is connected with a spray pipe, the other end of the spray pipe is provided with a spray head, one side of the spray head is provided with a fire extinguisher, the spray head is provided with a control valve, the upper side of the battery box is provided with an infrared thermometer, the infrared thermometer is connected with a temperature sampling wire harness, the temperature sampling wire harness is connected with a battery management system, the infrared thermometer is connected with the battery management system through the temperature sampling wire harness, the battery management system is connected with a data transmission wire harness, the data transmission wire harness is connected with a data concentrator, the battery management system is connected with the data concentrator through the data transmission wire harness, the battery management system is connected with a second control wire harness, the second control wire harness is connected with a control switch, and the battery management system, the control switch is connected with a first control wire harness and is connected with the control valve through the first control wire harness;
it is a plurality of power battery is connected with the voltage sampling pencil, the voltage sampling pencil is connected with battery management system, and is a plurality of power battery is connected with battery management system through the voltage sampling pencil, battery box internally mounted has the response subassembly, the response subassembly is connected with the signal transmission pencil, the signal transmission pencil is connected with battery management system, the response subassembly is connected with battery management system through the signal transmission pencil, the battery box is connected with the relay, the relay is connected with the third control pencil, the relay is connected with battery management system through the third control pencil.
Further, a spraying opening is formed in one side of the battery box and is in clearance fit with the nozzle, a mounting ring is mounted on the nozzle, a fixing screw is mounted inside the mounting ring, and the nozzle is fixedly connected with the battery box through the fixing ring and the fixing screw.
Furthermore, a plurality of power batteries are assembled in the battery box in a series connection mode or a parallel connection mode, connector lugs are installed on the power batteries, and the voltage sampling wire harness is connected with the power batteries through the connector lugs.
Furthermore, the sensing assembly consists of a smoke sensor, a temperature sensor and a flame sensor, and the smoke sensor, the temperature sensor and the flame sensor are all connected with the battery management system through signal transmission wiring harnesses.
Further, the control switch is provided on a vehicle cab instrument panel.
Further, the fire extinguisher adopts the aerosol fire extinguisher, the relay is the normal close type solenoid valve.
Further, the control device of the power battery box fire extinguisher specifically comprises the following steps:
the method comprises the following steps: when the vehicle is in a running state:
s1: voltage signals of a plurality of power batteries are transmitted to a battery management system through a voltage sampling wire harness, the battery management system detects the health states and the functional states of the plurality of power batteries through the voltage signals, smoke signals, temperature signals and flame signals in a battery box are transmitted to the battery management system through a signal transmission wire harness, temperature signals monitored by an infrared thermometer are transmitted to the battery management system through the temperature sampling wire harness, the battery management system transmits the smoke signals, the flame signals and the temperature signals to a data concentrator through a data transmission wire harness to carry out data comparison, and the smoke, flame and temperature states in the battery box are comprehensively judged;
s2: when a fire disaster occurs in the battery box, the battery management system controls the control switch to be started through the second control wire harness, the control switch starts the control valve through the first control wire harness, and the fire extinguisher sprays fire extinguishing agent into the battery box to carry out fire extinguisher;
s3: when fire is extinguished, the battery management system controls the relay to be closed through the third control wire harness, and an external power supply loop of the power battery is cut off;
s4: when the fact that a fire disaster does not occur in the battery box is judged, the battery management system transmits the smoke signal, the flame signal and the temperature signal to the data concentrator through the data transmission wire harness to be stored;
step two: when the vehicle is in a non-driving state:
s1: voltage signals of a plurality of power batteries are transmitted to a battery management system through a voltage sampling wire harness, the battery management system detects the health states and the functional states of the plurality of power batteries through the voltage signals, smoke signals, temperature signals and flame signals in a battery box are transmitted to the battery management system through a signal transmission wire harness, temperature signals monitored by an infrared thermometer are transmitted to the battery management system through the temperature sampling wire harness, the battery management system transmits the smoke signals, the flame signals and the temperature signals to a data concentrator through a data transmission wire harness to carry out data comparison, and the smoke, flame and temperature states in the battery box are comprehensively judged;
s2: when a fire disaster occurs in the battery box, the battery management system controls the control switch to be started through the second control wire harness, the control switch starts the control valve through the first control wire harness, and the fire extinguisher sprays fire extinguishing agent into the battery box to carry out fire extinguisher;
s3: when the fact that fire disasters do not occur in the battery box is judged, the battery management system transmits the smoke signal, the flame signal and the temperature signal to the data concentrator through the data transmission wire harness to be stored.
Compared with the prior art, the invention has the beneficial effects that:
1. the power battery is electrically connected with the battery management system through the voltage sampling wire harness, the voltage signal of the power battery is transmitted to the battery management system, the sensing assembly is electrically connected with the battery management system through the signal transmission wire harness and transmits the fire signal to the battery management system, the battery management system judges the transmitted fire signal and the voltage signal of the power battery, and comprehensively judges the smoke signal or the temperature condition in the battery box and the health state and the function state of the power battery, so that whether a control valve of a fire extinguisher is opened to extinguish the fire is determined, the fire of the power battery can be accurately judged, and the fire extinguisher is prevented from being sprayed by mistake;
2. the power battery in the battery box is in fire, and when the fire extinguisher is started to extinguish the fire, the battery management system controls the relay to be closed through the control wire harness, so that a power supply loop of the power battery to the electric automobile can be immediately cut off, and the electricity utilization safety is guaranteed.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic block diagram of the present invention.
In the figure: 10. a battery box; 101. a connector lug; 11. a power battery; 12. an infrared thermometer; 13. a nozzle; 14. a nozzle; 15. a temperature sampling wire harness; 16. a control valve; 17. a spray head; 18. a fire extinguisher; 19. a first control harness; 20. a control switch; 21. a second control harness; 22. a data concentrator; 23. a data transmission harness; 24. a battery management system; 25. a voltage sampling wire harness; 26. a signal transmission harness; 27. an inductive component; 28. a third control harness; 29. a relay.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a control device for a power battery box fire extinguisher includes a battery box 10, a power battery 11, an infrared thermometer 12, a nozzle 13, a spray pipe 14, a temperature sampling wire harness 15, a control valve 16, a spray head 17, a fire extinguisher 18, a first control wire harness 19, a control switch 20, a second control wire harness 21, a data concentrator 22, a data transmission wire harness 23, a battery management system 24, a voltage sampling wire harness 25, a signal transmission wire harness 26, a sensing component 27, a third control wire harness 28 and a relay 29;
a plurality of power batteries 11 are arranged in a battery box 10, a nozzle 13 is arranged on one side of the battery box 10, the nozzle 13 is connected with a spray pipe 14, a spray head 17 is arranged at the other end of the spray pipe 14, a fire extinguisher 18 is arranged on one side of the spray head 17, a control valve 16 is arranged on the spray head 17, an infrared thermometer 12 is arranged on the upper side of the battery box 10, the infrared thermometer 12 is connected with a temperature sampling wire harness 15, the temperature sampling wire harness 15 is connected with a battery management system 24, the infrared thermometer 12 is connected with the battery management system 24 through the temperature sampling wire harness 15, the battery management system 24 is connected with a data transmission wire harness 23, the data transmission wire harness 23 is connected with a data concentrator 22, the battery management system 24 is connected with the data concentrator 22 through the data transmission wire harness 23, the battery management system 24 is connected with a second control wire harness 21, the second control wire harness 21, the control switch 20 is connected with a first control wiring harness 19, and the control switch 20 is connected with the control valve 16 through the first control wiring harness 19;
a voltage sampling wire harness 25 is connected with a plurality of power batteries 11, the voltage sampling wire harness 25 is connected with a battery management system 24, the power batteries 11 are connected with the battery management system 24 through the voltage sampling wire harness 25, an induction component 27 is installed inside the battery box 10, the induction component 27 is connected with a signal transmission wire harness 26, the signal transmission wire harness 26 is connected with the battery management system 24, the induction component 27 is connected with the battery management system 24 through the signal transmission wire harness 26, the battery box 10 is connected with a relay 29, the relay 29 is connected with a third control wire harness 28, and the relay 29 is connected with the battery management system 24 through the third control wire harness 28.
The mouth of spouting has been seted up to battery box 10 one side, and it is clearance fit with nozzle 13 to spout the mouth, install the collar on the nozzle 13, and the inside fixed screw that installs of collar, nozzle 13 is through solid fixed ring and fixed screw and battery box 10 fixed connection, a plurality of power battery 11 adopt series connection mode or parallel mode equipment in battery box 10, all install connector lug 101 on a plurality of power battery 11, voltage sampling pencil 25 is connected with a plurality of power battery 11 through connector lug 101, induction component 27 comprises smoke transducer, temperature sensor and flame sensor, smoke transducer, temperature sensor and flame sensor all are connected with battery management system 24 through signal transmission pencil 26, control switch 20 sets up on vehicle cab instrument desk, fire extinguisher 18 adopts the aerosol fire extinguisher, relay 29 is the type solenoid valve that closes.
The fire extinguisher control device of the power battery box specifically comprises the following steps:
the method comprises the following steps: when the vehicle is in a running state:
s1: voltage signals of the power batteries 11 are transmitted to a battery management system 24 through a voltage sampling wiring harness 25, the battery management system 24 detects health states and function states of the power batteries 11 through the voltage signals, smoke signals, temperature signals and flame signals in the battery box 10 are transmitted to the battery management system 24 through a signal transmission wiring harness 26, the temperature signals monitored by the infrared thermometer 12 are transmitted to the battery management system 24 through a temperature sampling wiring harness 15, the battery management system 24 transmits the smoke signals, the flame signals and the temperature signals to a data concentrator 22 through a data transmission wiring harness 23 for data comparison, and smoke, flame and temperature states in the battery box 10 are comprehensively judged;
s2: when a fire disaster occurs in the battery box 10, the battery management system 24 controls the control switch 20 to be started through the second control wiring harness 21, the control switch 20 starts the control valve 16 through the first control wiring harness 19, and the fire extinguisher 18 sprays a fire extinguishing agent into the battery box 10 to carry out the fire extinguisher 18;
s3: when fire is extinguished, the battery management system 24 controls the relay 29 to be closed through the third control wire harness 28, and cuts off an external power supply loop of the power battery 11;
s4: when it is judged that no fire occurs in the battery box 10, the battery management system 24 transmits the smoke signal, the flame signal and the temperature signal to the data concentrator 22 for storage through the data transmission wire harness 23;
step two: when the vehicle is in a non-driving state:
s1: voltage signals of the power batteries 11 are transmitted to a battery management system 24 through a voltage sampling wiring harness 25, the battery management system 24 detects health states and function states of the power batteries 11 through the voltage signals, smoke signals, temperature signals and flame signals in the battery box 10 are transmitted to the battery management system 24 through a signal transmission wiring harness 26, the temperature signals monitored by the infrared thermometer 12 are transmitted to the battery management system 24 through a temperature sampling wiring harness 15, the battery management system 24 transmits the smoke signals, the flame signals and the temperature signals to a data concentrator 22 through a data transmission wiring harness 23 for data comparison, and smoke, flame and temperature states in the battery box 10 are comprehensively judged;
s2: when a fire disaster occurs in the battery box 10, the battery management system 24 controls the control switch 20 to be started through the second control wiring harness 21, the control switch 20 starts the control valve 16 through the first control wiring harness 19, and the fire extinguisher 18 sprays a fire extinguishing agent into the battery box 10 to carry out the fire extinguisher 18;
s3: when it is judged that a fire is not present in the battery box 10, the battery management system 24 transmits the smoke signal, the flame signal, and the temperature signal to the data concentrator 22 for storage through the data transmission harness 23.
The working principle is as follows: the data concentrator 22 stores a standard smoke concentration value and a standard temperature value of the preset battery box 10 and a standard pressure value of the power battery 11, and the standard smoke concentration value, the standard temperature value and the standard pressure value can be set according to actual requirements;
during operation, the sensing assembly 27 monitors a smoke concentration value and a temperature value in the battery box 10 in real time, the infrared thermometer 12 monitors the temperature on the surface of the battery box 10 in real time, the data of the battery box 10 monitored in real time are transmitted to the battery management system 24 through the signal transmission wiring harness 26 and the temperature sampling wiring harness 15 respectively, meanwhile, the voltage sampling wiring harness 25 also monitors the health states and the functional states of the plurality of power batteries 11 in real time, the data conditions of the power batteries 11 are transmitted to the battery management system 24, and the data of the battery box 10 and the data of the power batteries 11 are transmitted and stored to the data concentrator 22 through the data transmission wiring harness 23;
when a vehicle is in a running state, the sensing assembly 27 monitors real-time conditions such as a smoke concentration value and a temperature value inside the battery box 10, the infrared thermometer 12 monitors temperature information on the outer surface of the battery box 10, the real-time conditions and the temperature information of the battery box 10 are transmitted to the battery management system 24 and compared with a preset value of the data concentrator 22, when the smoke concentration value and the temperature value inside the battery box 10 reach the preset value, a control unit in the battery management system 24 sends a control command, the control command sends a control signal to the control switch 20 through the second control wiring harness 21, the control switch 20 is a button which is arranged on an instrument desk in a vehicle cab and has an acousto-optic alarm function and a control function, the control switch 20 is started, the control switch 20 starts the control valve 16 through the first control wiring harness 19, a fire extinguishing agent in the fire extinguisher 18 enters the battery box 10 through the spray nozzle 17, the spray pipe 14 and the spray, not only can the battery box 10 be effectively put out a fire in time, but also the mistaken spraying of the fire extinguisher 18 can be accurately prevented;
meanwhile, when the control valve 16 of the fire extinguisher 18 is opened to extinguish fire, a control command sent by the battery management system 24 is loaded into the belt relay 29 through the third control wire harness 28, the relay 29 is immediately in a disconnected state, an external power supply loop of the power battery 11 is cut off in time, and the electricity utilization safety is guaranteed;
when the vehicle is in a non-driving state, the sensing assembly 27 monitors the internal condition of the battery box 10 in real time, the infrared thermometer 12 monitors the temperature information of the external surface of the battery box 10, the real-time condition and the temperature information of the battery box 10 are transmitted to the battery management system 24 and compared with the preset value of the data concentrator 22, when the smoke concentration value and the temperature value in the battery box 10 reach the preset value, the control unit in the battery management system 24 sends a control command, the control command sends a control signal to the control switch 20 through the second control wire harness 21, the control switch 20 is a button which is arranged on an instrument desk of a vehicle cab and has an acousto-optic alarm function and a control function, the control switch 20 is turned on, the control switch 20 turns on the control valve 16 through the first control wire harness 19, and the fire extinguishing agent in the fire extinguisher 18 enters the battery box 10 through the spray nozzle 17, the spray pipe 14, the battery box 10 is effectively put out a fire in time.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A power battery box fire extinguisher control device is characterized by comprising a battery box (10), a power battery (11), an infrared thermometer (12), a nozzle (13), a spray pipe (14), a temperature sampling wire harness (15), a control valve (16), a spray head (17), a fire extinguisher (18), a first control wire harness (19), a control switch (20), a second control wire harness (21), a data concentrator (22), a data transmission wire harness (23), a battery management system (24), a voltage sampling wire harness (25), a signal transmission wire harness (26), an induction component (27), a third control wire harness (28) and a relay (29);
the battery box is characterized in that a plurality of power batteries (11) are installed inside the battery box (10), a nozzle (13) is installed on one side of the battery box (10), the nozzle (13) is connected with a spray pipe (14), a spray head (17) is installed at the other end of the spray pipe (14), a fire extinguisher (18) is installed on one side of the spray head (17), a control valve (16) is installed on the spray head (17), an infrared thermometer (12) is installed on the upper side of the battery box (10), the infrared thermometer (12) is connected with a temperature sampling wire harness (15), the temperature sampling wire harness (15) is connected with a battery management system (24), the infrared thermometer (12) is connected with the battery management system (24) through the temperature sampling wire harness (15), the battery management system (24) is connected with a data transmission wire harness (23), and the data transmission wire harness (23) is connected, the battery management system (24) is connected with the data concentrator (22) through a data transmission wiring harness (23), the battery management system (24) is connected with a second control wiring harness (21), the second control wiring harness (21) is connected with a control switch (20), the battery management system (24) is connected with the control switch (20) through the second control wiring harness (21), the control switch (20) is connected with a first control wiring harness (19), and the control switch (20) is connected with the control valve (16) through the first control wiring harness (19);
a voltage sampling wire harness (25) is connected with the plurality of power batteries (11), a battery management system (24) is connected with the voltage sampling wire harness (25), the plurality of power batteries (11) are connected with the battery management system (24) through the voltage sampling wire harness (25), an induction component (27) is arranged in the battery box (10), the induction component (27) is connected with a signal transmission wire harness (26), the signal transmission wire harness (26) is connected with a battery management system (24), the sensing assembly (27) is connected with the battery management system (24) through the signal transmission wire harness (26), the battery box (10) is connected with a relay (29), the relay (29) is connected with a third control wire harness (28), the relay (29) is connected to the battery management system (24) via a third control harness (28).
2. The control device for the power battery box fire extinguisher according to claim 1, wherein a spraying opening is formed in one side of the battery box (10), the spraying opening is in clearance fit with the nozzle (13), a mounting ring is mounted on the nozzle (13), a fixing screw is mounted inside the mounting ring, and the nozzle (13) is fixedly connected with the battery box (10) through a fixing ring and the fixing screw.
3. The fire extinguisher control device of the power battery box according to claim 1, characterized in that a plurality of power batteries (11) are assembled in a battery box (10) in a series connection mode or a parallel connection mode, a connector lug (101) is mounted on each of the plurality of power batteries (11), and the voltage sampling wire harness (25) is connected with the plurality of power batteries (11) through the connector lug (101).
4. A power battery fire extinguisher control device according to claim 1, characterized in that the sensing assembly (27) consists of a smoke sensor, a temperature sensor and a flame sensor, all connected to the battery management system (24) by a signal transmission harness (26).
5. A power battery pack fire extinguisher control apparatus according to claim 1, wherein said control switch (20) is provided on a vehicle cab instrument panel.
6. The control device for the power battery box fire extinguisher according to the claim 1 is characterized in that the fire extinguisher (18) adopts an aerosol fire extinguisher (18), and the relay (29) is a normally closed type solenoid valve.
7. The control device for the power battery box fire extinguisher according to claim 1 is characterized by comprising the following steps:
the method comprises the following steps: when the vehicle is in a running state:
s1: voltage signals of a plurality of power batteries (11) are transmitted to a battery management system (24) through a voltage sampling wiring harness (25), the battery management system (24) detects the health states and the function states of the plurality of power batteries (11) through the voltage signals, smoke signals, temperature signals and flame signals in a battery box (10) are transmitted to the battery management system (24) through a signal transmission wiring harness (26), temperature signals monitored by an infrared thermometer (12) are transmitted to the battery management system (24) through a temperature sampling wiring harness (15), the battery management system (24) transmits the smoke signals, the flame signals and the temperature signals to a data concentrator (22) through a data transmission wiring harness (23) for data comparison, and the smoke, flame and temperature states in the battery box (10) are comprehensively judged;
s2: when a fire disaster occurs in the battery box (10), the battery management system (24) controls the control switch (20) to be started through the second control wiring harness (21), the control switch (20) starts the control valve (16) through the first control wiring harness (19), and the fire extinguisher (18) sprays fire extinguishing agent into the battery box (10) to carry out fire extinguisher (18);
s3: when fire is extinguished, the battery management system (24) controls the relay (29) to be closed through the third control wire harness (28), and cuts off an external power supply loop of the power battery (11);
s4: when the battery box (10) is judged not to have a fire, the battery management system (24) transmits the smoke signal, the flame signal and the temperature signal to the data concentrator (22) for storage through the data transmission wire harness (23);
step two: when the vehicle is in a non-driving state:
s1: voltage signals of a plurality of power batteries (11) are transmitted to a battery management system (24) through a voltage sampling wiring harness (25), the battery management system (24) detects the health states and the function states of the plurality of power batteries (11) through the voltage signals, smoke signals, temperature signals and flame signals in a battery box (10) are transmitted to the battery management system (24) through a signal transmission wiring harness (26), temperature signals monitored by an infrared thermometer (12) are transmitted to the battery management system (24) through a temperature sampling wiring harness (15), the battery management system (24) transmits the smoke signals, the flame signals and the temperature signals to a data concentrator (22) through a data transmission wiring harness (23) for data comparison, and the smoke, flame and temperature states in the battery box (10) are comprehensively judged;
s2: when a fire disaster occurs in the battery box (10), the battery management system (24) controls the control switch (20) to be started through the second control wiring harness (21), the control switch (20) starts the control valve (16) through the first control wiring harness (19), and the fire extinguisher (18) sprays fire extinguishing agent into the battery box (10) to carry out fire extinguisher (18);
s3: when the battery box (10) is judged not to have a fire, the battery management system (24) transmits the smoke signal, the flame signal and the temperature signal to the data concentrator (22) for storage through the data transmission wiring harness (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397475.4A CN111544800B (en) | 2020-05-12 | 2020-05-12 | Fire extinguisher control device of power battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397475.4A CN111544800B (en) | 2020-05-12 | 2020-05-12 | Fire extinguisher control device of power battery box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111544800A true CN111544800A (en) | 2020-08-18 |
| CN111544800B CN111544800B (en) | 2021-04-20 |
Family
ID=71999942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010397475.4A Active CN111544800B (en) | 2020-05-12 | 2020-05-12 | Fire extinguisher control device of power battery box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111544800B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588286B1 (en) * | 2002-07-30 | 2003-07-08 | The United States Of America As Represented By The Secretary Of The Navy | NoFoam system for testing a foam delivery system on a vehicle |
| CN104784847A (en) * | 2015-03-23 | 2015-07-22 | 中汽客汽车零部件（厦门）有限公司 | Special automatic fire extinguishing device for battery box |
| CN105811029A (en) * | 2016-04-21 | 2016-07-27 | 江苏九龙汽车制造有限公司 | Automobile power lithium battery box with active safety system and matched control method |
| CN209173262U (en) * | 2019-01-16 | 2019-07-30 | 海天消防科技股份有限公司 | A kind of car power battery fire extinguishing prevention and control device |
| CN110752416A (en) * | 2019-10-25 | 2020-02-04 | 湖北工业大学 | Lithium battery pack thermal management system and control method |
-
2020
- 2020-05-12 CN CN202010397475.4A patent/CN111544800B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588286B1 (en) * | 2002-07-30 | 2003-07-08 | The United States Of America As Represented By The Secretary Of The Navy | NoFoam system for testing a foam delivery system on a vehicle |
| CN104784847A (en) * | 2015-03-23 | 2015-07-22 | 中汽客汽车零部件（厦门）有限公司 | Special automatic fire extinguishing device for battery box |
| CN105811029A (en) * | 2016-04-21 | 2016-07-27 | 江苏九龙汽车制造有限公司 | Automobile power lithium battery box with active safety system and matched control method |
| CN209173262U (en) * | 2019-01-16 | 2019-07-30 | 海天消防科技股份有限公司 | A kind of car power battery fire extinguishing prevention and control device |
| CN110752416A (en) * | 2019-10-25 | 2020-02-04 | 湖北工业大学 | Lithium battery pack thermal management system and control method |
Non-Patent Citations (2)
| Title |
|---|
| 清大东方教育科技集团有限公司: "《社会消防安全教育培训系列丛书 高层民用建筑消防安全培训教程》", 30 June 2018 * |
| 苏易: "《火灾防范与自救》", 30 June 2013 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111544800B (en) | 2021-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110947120B (en) | Locomotive fire prevention and control system | |
| CN205569556U (en) | Fire extinguishing systems and on -vehicle battery box of on -vehicle battery box | |
| CN107359373B (en) | Energy storage power station with early warning and fire fighting system | |
| CN111883861A (en) | Electric vehicle thermal runaway early warning and inhibiting system and control method thereof | |
| CN105561503A (en) | Special fire-extinguishing device for power battery pack | |
| CN109847233A (en) | Car lithium battery box fire alarm and protective device | |
| TWM529618U (en) | Battery management system for vehicle starting battery | |
| CN106798992A (en) | Extinguishing device and system | |
| CN117318204A (en) | Intelligent on-line monitoring fireproof protection system for battery charge and discharge state of electric bicycle | |
| CN112389271A (en) | Intelligent control system | |
| CN212461803U (en) | Electric automobile thermal runaway early warning, suppression system | |
| CN111544800B (en) | Fire extinguisher control device of power battery box | |
| CN213676417U (en) | Novel intelligent charging pile | |
| CN114191743A (en) | Fire early warning and fire extinguishing system based on risk assessment and automatic fire-fighting server | |
| CN211357524U (en) | Vehicle-mounted fire alarm protection automatic fire extinguishing device | |
| CN205924764U (en) | Battery package with automatic fire extinguishing control function | |
| CN114306985A (en) | Fire early warning and fire extinguishing system based on intelligent evacuation visual command controller | |
| CN114670704A (en) | Control method and device of power battery pack and electric automobile | |
| CN212304766U (en) | Energy storage cabin for source network charge storage | |
| CN211675968U (en) | System for be used for battery package to put out a fire and install vehicle of this system | |
| CN112038715A (en) | Monitoring device for monitoring safety of electric bicycle battery | |
| CN219307809U (en) | Fire safety mechanism of storage battery charging cabinet | |
| CN113521603A (en) | Twelve-bin charging and battery replacing cabinet with fire-fighting system | |
| CN209879691U (en) | Fire safety coefficient suitable for charging device | |
| CN111641222A (en) | Safe mobile energy storage cabin for source network load storage interactive adjustment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |