CN219630478U - Fire extinguishing system of electric vehicle shed - Google Patents
Fire extinguishing system of electric vehicle shed Download PDFInfo
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- CN219630478U CN219630478U CN202320287409.0U CN202320287409U CN219630478U CN 219630478 U CN219630478 U CN 219630478U CN 202320287409 U CN202320287409 U CN 202320287409U CN 219630478 U CN219630478 U CN 219630478U
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Classifications
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model belongs to the technical field of fire safety, and particularly relates to a fire protection system of an electric vehicle shed, which comprises an electric early warning system and an automatic fire protection system; a charging socket is arranged at a parking space below the electric vehicle shed; the automatic fire extinguishing system comprises an intelligent AI smoke and fire identification multifunctional camera system and a dry powder and water curtain extinguishing system; when the electric early warning system catches fire at the parking space, the power supply of the charging socket is automatically disconnected; when the fire is on the parking space, the fire-fighting electromagnetic valve or the hanging type electric-starting dry powder fire extinguisher of the dry powder and water curtain extinguishing system is opened. The intelligent internet of things controller adopted by the electric early warning system in the scheme can realize high-precision identification of the state of the charging circuit of the electric vehicle, and combines with an electric safety advanced early warning artificial intelligent technical platform based on process parameters to realize early warning risk assessment of charging safety of the electric vehicle. Accurately identifying various electric safety and early hidden dangers of electric fire, and eliminating the hidden dangers in the germination stage; the method comprises the following steps: early warning, early finding and early fire fighting.
Description
Technical Field
The utility model belongs to the technical field of fire safety, and particularly relates to a fire protection system of an electric vehicle shed.
Background
At present, the situation that fire accidents happen in the charging process of the electric bicycle is countless, and the electric bicycle is easy to spontaneously ignite and catch fire, so that huge potential safety hazards are brought to communities, and particularly, the electric bicycle is difficult to discover and alarm in time in case of catching fire late at night or early in the morning.
At present, most outdoor electric bicycle sheds are provided with fire extinguishers beside, but the fire extinguishers are often operated by people, and in order to be convenient for operators on duty of the electric bicycle shed to find fire in time, cameras are often arranged at the electric bicycle shed; namely, the method comprises the following steps: after the person on duty discovers that fires through the surveillance video, take the fire extinguisher again and put out a fire, this kind of mode has both consumed a large amount of manpowers, delays the time of putting out a fire again, consequently, the automatic early fire extinguishing system that can not only advance electric line trouble early warning, can discern multi-functional camera and fire extinguishing apparatus linkage through intelligent AI smoke and fire again needs to be designed.
Disclosure of Invention
In order to solve the problem of automatic fire extinguishment of the electric vehicle shed, the scheme provides a fire protection system of the electric vehicle shed.
The technical scheme adopted by the utility model is as follows:
a fire-fighting system of an electric vehicle shed comprises an electric early warning system and an automatic fire-extinguishing system; a charging socket is arranged at a parking space below the electric vehicle shed; the fire extinguishing system comprises an intelligent AI smoke and fire identification multifunctional camera system and a dry powder and water curtain extinguishing system;
the electric early warning system comprises an intelligent internet of things controller, wherein the power supply side of the intelligent internet of things controller is connected with a mains supply, the power consumption side of the intelligent internet of things controller is electrically connected with an internet of things air-break switch, the power consumption side of the internet of things air-break switch is electrically connected with a charging controller, the charging controller is electrically connected with a plurality of charging sockets, and the intelligent internet of things controller, the internet of things air-break switch and the charging controller are all used for controlling the power on and power off of the charging sockets;
the intelligent AI smoke and fire recognition multifunctional camera system comprises an intelligent AI smoke and fire recognition multifunctional camera, a control platform and an artificial intelligent technology platform; the control platform can acquire a fire image at a parking space through the intelligent AI smoke and fire recognition multifunctional camera; the artificial intelligent technology platform is in communication connection with the intelligent internet of things controller and the control platform, can well integrate an electric early warning system and an automatic fire extinguishing system, and cuts off the power supply of the charging socket when a fire occurs at a parking space;
the dry powder and water curtain extinguishing system comprises a water spray head, a fire-fighting electromagnetic valve, a suspension type electric starting dry powder fire extinguisher and an intermediate controller; the water spray head and the suspension type electric starting dry powder fire extinguisher are arranged above the parking space; the sprinkler head is communicated with a fire-fighting water pipe through a fire-fighting electromagnetic valve; the fire-fighting electromagnetic valve and the suspension type electric starting dry powder fire extinguisher are electrically connected to the intermediate controller; the intermediate controller is in communication connection with the artificial intelligence technology platform so as to open the fire-fighting electromagnetic valve or/and the suspension type electric-starting dry powder fire extinguisher when the fire is on the parking space.
The water spraying head not only comprises an open water curtain and a spraying nozzle, but also comprises a temperature control closed nozzle and the like, and can be selected according to project characteristics.
It should be noted that: the intelligent internet of things controller belongs to a commercial/customized product, can realize high-precision identification of the state of a charging circuit of the electric vehicle, and combines an electric safety advanced early warning artificial intelligent technology platform based on process parameters to realize risk assessment of charging safety of the electric vehicle. And various electrical safety and early hidden dangers of electrical fire are accurately identified, and hidden dangers are eliminated in a germination stage. The functions include:
and (3) accurate collection: harmonic, leakage current, cable temperature, electrical quantity, current, voltage, power, and power factor.
And (3) real-time alarm: leakage, over-temperature, overload, over-current, short circuit, fault arc, surge.
And (3) intelligent control: zero crossing breaking control, local automatic control and remote control.
Free expansion: maximum support 29 branches and threshold customization.
And carrying electric power Internet of things data service software, providing electric safety supervision and energy management cloud platform service, intelligent mobile phone electricity, and real-time reminding and timely repair of APP.
Alternatively or additionally to the fire protection system of the bullet train shed described above: the electric car shed comprises a shed vertical rod and a shed roof, wherein the shed vertical rod is erected on the ground at a parking space, and the shed roof is obliquely fixed to the top of the shed vertical rod.
Alternatively or additionally to the fire protection system of the bullet train shed described above: the vertical rods of the shed are made of metal round tubes or H-shaped steel.
Alternatively or additionally to the fire protection system of the bullet train shed described above: the diameter of the fire extinguishing of the suspension type electric starting dry powder fire extinguisher is D, and the distance between two adjacent suspension type electric starting dry powder fire extinguishers is not greater than the diameter D of the fire extinguishing.
Alternatively or additionally to the fire protection system of the bullet train shed described above: a smoke probe is arranged at the intersection of the fire extinguishing coverage areas of two adjacent suspension type electric starting dry powder extinguishers; the smoke probe is electrically connected to the control platform, and when the smoke probe is triggered, the control platform controls the fire-fighting electromagnetic valve or the suspension type electric-start dry powder fire extinguisher to be opened through the intermediate controller.
Alternatively or additionally to the fire protection system of the bullet train shed described above: the intermediate controller is also electrically connected with an alarm, and when the parking space is on fire, the intermediate controller starts the alarm.
Alternatively or additionally to the fire protection system of the bullet train shed described above: the fire-fighting water pipe comprises a water main pipe and a branch pipe, and the branch pipe is arranged above the parking space and is connected with the water spraying head through a fire-fighting electromagnetic valve; the branch pipe is communicated with the water main.
Alternatively or additionally to the fire protection system of the bullet train shed described above: the branch pipe has a plurality ofly, and every branch pipe all arranges along the depth direction in parking stall.
The beneficial effects of the utility model are as follows:
1. in this scheme, intelligent thing networking controller, thing networking sky open switch and artificial intelligence technical platform that electric early warning system adopted can realize the high accuracy discernment of electric parameters such as electric current, voltage when the electric motor car charges, combines the electric safety early warning artificial intelligence technical platform based on process parameter, realizes the early warning risk assessment of electric motor car safety that charges. Accurately identifying various electrical safety and early potential hazards of electrical fire, and eliminating the fire potential hazards in a germination stage;
2. in the scheme, the intelligent AI smoke and fire recognition multifunctional camera is used for acquiring a fire image of a fire disaster occurring in a shed of the electric vehicle, and the artificial intelligence technology platform is used for comparing the video in the ignition with the normal video state in the platform in an AI artificial intelligence manner, so that whether the combustion phenomenon of the electric vehicle occurs or not is judged; when the electric vehicle has just spontaneous combustion, the on-off of the charging socket can be controlled through the intelligent internet of things controller, the electric vehicle can also give an alarm through the alarm, and the dry powder fire extinguisher and the water spray head are started electrically to extinguish the fire through the suspension type electric fire extinguisher, so that the effects of real-time monitoring and early automatic fire extinguishment are achieved;
3. the electric early warning system in the scheme can not only recognize the ignition position through the intelligent AI smoke and fire recognition multifunctional camera, but also perform smoke induction through the smoke probe, and timely discover fire hidden danger before flame is expanded and formed into a fire accident, so that the safety of the fire protection system is improved;
4. in this scheme, configured fire control facilities such as suspension type electricity start dry powder fire extinguisher, sprinkler head simultaneously, can carry out the long-range fire condition and put out a fire to effectual reduction conflagration takes place and the probability of expanding.
Drawings
In order to more clearly illustrate the embodiments of the present solution or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a block diagram showing the arrangement of components such as a smoke probe and a suspension type electric starting dry powder fire extinguisher at a shed of an electric vehicle;
FIG. 2 is a schematic illustration of the fire extinguishing coverage of a suspended electrically activated dry powder fire extinguisher at a parking space;
fig. 3 is a topology diagram of the fire protection system of the present embodiment.
In the figure: 1-parking space; 2-a shed upright post; 3-a shed roof; 4-branch pipes; 5-a sprinkler head; 6-a water main; 7-a charging socket; 8-smoke probe; 9-hanging type electric starting dry powder fire extinguisher; 10-intelligent AI smoke and fire recognition multifunctional camera; 11-an alarm; 12-an intermediate controller; 13-a control platform; 14-a mobile phone terminal; 15-an artificial intelligence technology platform; 16-an intelligent internet of things controller; 17-an Internet of things air switch; 18-a charge controller; 19-fire control solenoid valve.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only some embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present embodiment are all within the protection scope of the present solution.
Example 1
As shown in fig. 1 to 3, the embodiment designs a fire-fighting system of an electric vehicle shed, which comprises an electric early warning system and an automatic fire-extinguishing system; a charging socket 7 is arranged at the parking space 1 below the electric vehicle shed; the fire extinguishing system comprises an intelligent AI smoke and fire identification multifunctional camera system and a dry powder and water curtain extinguishing system;
the electric bicycle shed comprises a shed vertical rod 2 and a shed roof 3, wherein the shed vertical rod 2 is erected on the ground at a parking space 1, a plurality of shed vertical rods 2 can be arranged in a straight shape, if a plurality of parking spaces 1 are arranged into a strip-shaped area, the shed vertical rod 2 can be arranged along a long edge of the strip-shaped area, the shed roof 3 is obliquely fixed at the top of the shed vertical rod 2, and the shed roof 3 extends to the upper side of the parking space 1, so that the upper side of the parking space 1 is shielded, and the effect of rain shielding is achieved.
In order to realize the charging of the electric vehicle at the parking space 1, a charging socket 7 is arranged at part or all of the parking space 1, and the charging socket 7 can be a commercially available five-hole socket or a three-hole socket.
In order to realize safety and early warning in the charging process, an electrical early warning system is adopted. The electric early warning system comprises an intelligent internet of things controller 16, wherein the power supply side of the intelligent internet of things controller 16 is connected with a mains supply, the power consumption side of the intelligent internet of things controller 16 is electrically connected with an internet of things air switch 17, the power consumption side of the internet of things air switch 17 is electrically connected with a charging controller 18, the charging controller 18 is electrically connected with a plurality of charging sockets 7, and the intelligent internet of things controller 16, the internet of things air switch 17 and the charging controller 18 are all used for controlling the power on and power off of the charging sockets 7; when the person or the intelligent AI smoke and fire recognition multifunctional camera 10 finds that the spontaneous combustion of the electric vehicle occurs in the shed area of the electric vehicle, the air switch can be manually operated to cut off the power supply of the charging socket 7, and the intelligent internet of things controller 16 can be remotely or on site automatically controlled to cut off the power supply of the charging socket 7, so that the probability of the flame expansion of the spontaneous combustion of the electric vehicle is reduced.
The intelligent internet of things controller 16 can be obtained through a commercial purchase/customization mode, the intelligent internet of things controller 16 can realize high-precision identification of current and voltage when the electric vehicle is charged, and the risk assessment of the charging safety of the electric vehicle can be realized by combining the artificial intelligent technology platform 15 for the electric safety advanced early warning based on the process parameters. And various electrical safety and early hidden dangers of electrical fire are accurately identified, and hidden dangers are eliminated in a germination stage. The functions of the intelligent internet of things controller 16 include: and (3) accurate collection: harmonic, leakage current, cable temperature, electrical quantity, current, voltage, power, and power factor. And (3) real-time alarm: leakage, over-temperature, overload, over-current, short circuit, fault arc, surge. And (3) intelligent control: zero crossing breaking control, local automatic control and remote control. Free expansion: maximum support 29 branches and threshold customization. And carrying electric power Internet of things data service software, providing electric safety supervision and energy management cloud platform service, intelligent mobile phone electricity, and real-time reminding and timely repair of APP.
In order to ensure that the fire condition at the shed of the electric vehicle can be found in time, an intelligent AI smoke and fire identification multifunctional camera system is adopted, and comprises an intelligent AI smoke and fire identification multifunctional camera 10, a control platform 13, an artificial intelligence technology platform 15, a smoke probe 8 and other components; the control platform 13 can acquire a fire image at the parking space 1 through the intelligent AI smoke and fire recognition multifunctional camera 10; the artificial intelligence technology platform 15 can adopt a server and is in communication connection with the control platform 13 so as to disconnect the power supply of the charging socket 7 when a fire occurs at a certain position of the parking space 1; the smoke probe 8 is electrically connected with the control platform 13, and when the smoke probe 8 is triggered, the control platform 13 controls the fire-fighting electromagnetic valve 19 or the hanging type electric-starting dry powder fire extinguisher 9 to be opened through the intermediate controller 12. The intelligent AI-smoke and fire recognition multifunctional camera 10 can adopt a six-band and AI-form smoke and fire recognition camera based on a general image sensor, and the camera belongs to a commercially available customized product, and is not described herein, because the difference between flame light radiation and radiated sunlight exists, the artificial intelligent technology platform 15 performs image processing such as filtering through PS and other software, and can obtain an image with more accurate flame contrast, thereby improving the judgment accuracy. In addition, the intelligent AI-smoke and fire identification multifunctional camera 10 can also adopt the thermal imaging intelligent AI-smoke and fire identification multifunctional camera 10, and can timely discover fire or fire hidden danger due to infrared identification of the electric vehicle with high thermal imaging or heating value of flame. In addition, a large amount of dense smoke is often generated before some electric vehicles catch fire, and the probability of immediately finding fire can be improved through detecting the dense smoke by the smoke probe 8. Of course, in the outdoor environment, the fire triggering precision, timeliness and accuracy of the intelligent AI smoke and fire recognition multifunctional camera 10 are far higher than those of the smoke probe 8, and the smoke probe 8 can be used as a good supplement for fire finding.
The dry powder and water curtain extinguishing system comprises a water spray head 5, a fire-fighting electromagnetic valve 19, a suspension type electric starting dry powder fire extinguisher 9 and an intermediate controller 12; the water spray head 5 and the suspension type electric starting dry powder fire extinguisher 9 are arranged above the parking space 1; the sprinkler head 5 is communicated with a fire-fighting water pipe through a fire-fighting electromagnetic valve 19; the fire-fighting electromagnetic valve 19 and the suspension type electric-starting dry powder fire extinguisher 9 are electrically connected to the intermediate controller 12; the intermediate controller 12 is in communication with the artificial intelligence technology platform 15 to open the fire solenoid valve 19 or the suspended electrically activated dry chemical fire extinguisher 9 in the event of fire at the parking space 1. The suspended type electric starting dry powder fire extinguisher 9 can be selected from FZX-ACT type suspended type electric starting and temperature control double-control dry powder fire extinguishers, the suspended type electric starting dry powder fire extinguisher 9 is provided with a temperature sensing glass ball at the nozzle, and under normal conditions, the upper end of the glass ball props against a sealing plate at the nozzle. When the fire is on, the ambient temperature rises or the electric heater arranged at the place is electrified and heated, so that the liquid in the glass ball is automatically crushed after being heated and expanded, the sealing sheet automatically falls, and the dry powder medicament in the fire extinguishing device is sprayed out from the spray nozzle under the action of nitrogen to extinguish the fire; the hanging type electric starting dry powder fire extinguisher 9 is made of commercial products.
In order to ensure the coverage of a parking area, the fire extinguishing diameter of the suspension type electric starting dry powder fire extinguisher 9 is D, and the distance between two adjacent suspension type electric starting dry powder fire extinguishers 9 is not greater than the fire extinguishing diameter D. The smoke probe 8 is arranged at the intersection of the fire extinguishing coverage areas of two adjacent suspension type electric starting dry powder fire extinguishers 9; the smoke probe 8 is electrically connected with the control platform 13, and when the smoke probe 8 is triggered, the control platform 13 controls the fire-fighting electromagnetic valve 19 or the hanging type electric-starting dry powder fire extinguisher 9 to be opened through the intermediate controller 12.
The intermediate controller 12 is electrically connected with an alarm 11, and when the parking space 1 catches fire, the intermediate controller 12 starts the alarm 11.
The fire-fighting water pipe comprises a water main 6 and a branch pipe 4, the branch pipe 4 is arranged above the parking space 1, a fire-fighting electromagnetic valve 19 is arranged on the branch pipe 4, and one or more water spray heads 5 are arranged on the branch pipe; the branch pipe is communicated with the water main 6. The branch ducts have a plurality of branch ducts, each of which may be arranged in the depth direction of the parking space 1.
When the structure in the embodiment is used, the intelligent AI smoke and fire recognition multifunctional camera 10 is used for carrying out on-site image acquisition or the smoke detection mode through the smoke probe 8 can be timely found when a fire happens, so that the occurrence probability of the fire is reduced; the ignition image acquired by the intelligent AI smoke and fire recognition multifunctional camera 10 is transmitted to the artificial intelligence technology platform 15, and the artificial intelligence technology platform 15 judges whether the electric vehicle combustion phenomenon occurs or not by carrying out AI artificial intelligence comparison on the state of the video picture in ignition and the state of the normal video picture in the platform; when the electric vehicle has spontaneous combustion, the artificial intelligence technology platform 15 can send a signal through the intelligent internet of things controller 16, disconnect the power supply to the charging socket 7, and can also alarm through the alarm 11; at this time, when the fire is up, the acquired image comparison result exceeds the set threshold value, and the dry powder fire extinguisher 9 and the water spray head 5 are electrically started to extinguish fire and obstruct the fire, so that the effects of automatic monitoring and fire extinguishment are achieved.
The above examples are presented for the purpose of illustration only and are not intended to be limiting of the embodiments; it is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present technology.
Claims (8)
1. The utility model provides a fire extinguishing system of electric motor car bicycle shed which characterized in that: comprises an electric early warning system and an automatic fire extinguishing system; a charging socket (7) is arranged at a parking space (1) below the electric vehicle shed; the fire extinguishing system comprises an intelligent AI smoke and fire identification multifunctional camera system and a dry powder and water curtain extinguishing system;
the electric early warning system comprises an intelligent internet of things controller (16), wherein a power supply side of the intelligent internet of things controller (16) is connected with a commercial power supply, a power consumption side of the intelligent internet of things controller (16) is electrically connected with an internet of things air-break switch (17), a power consumption side of the internet of things air-break switch (17) is electrically connected with a charging controller (18), the charging controller (18) is electrically connected with a plurality of charging sockets (7), and the intelligent internet of things controller (16), the internet of things air-break switch (17) and the charging controller (18) are all used for controlling the on-off of the charging sockets (7);
the intelligent AI smoke and fire recognition multifunctional camera system comprises an intelligent AI smoke and fire recognition multifunctional camera (10), a control platform (13) and an artificial intelligence technology platform (15); the control platform (13) can acquire a fire image at the parking space (1) through the intelligent AI smoke and fire recognition multifunctional camera (10); the artificial intelligent technology platform (15) is in communication connection with the intelligent internet of things controller (16) and the control platform (13) so as to integrate an electric early warning system and an automatic fire extinguishing system, and when a fire occurs at the parking space (1), the power supply of the charging socket (7) is disconnected;
the dry powder and water curtain extinguishing system comprises a water spray head (5), a fire-fighting electromagnetic valve (19), a suspension type electric-starting dry powder fire extinguisher (9) and an intermediate controller (12); the water spray head (5) and the suspension type electric starting dry powder fire extinguisher (9) are arranged above the parking space (1); the sprinkler head (5) is communicated with a fire-fighting water pipe through a fire-fighting electromagnetic valve (19); the fire-fighting electromagnetic valve (19) and the suspension type electric starting dry powder fire extinguisher (9) are electrically connected to the intermediate controller (12); the intermediate controller (12) is in communication connection with the artificial intelligence technology platform (15) so as to open the fire-fighting electromagnetic valve (19) and the suspension type electric-starting dry powder fire extinguisher (9) when the fire is on the parking space (1).
2. The fire protection system for an electric vehicle shed according to claim 1, wherein: the electric bicycle shed comprises a shed vertical rod (2) and a shed roof (3), wherein the shed vertical rod (2) is erected on the ground at a parking space (1), and the shed roof (3) is obliquely fixed at the top of the shed vertical rod (2).
3. The fire protection system for an electric vehicle shed according to claim 2, wherein: the shed upright (2) is made of metal round tubes or H-shaped steel.
4. The fire protection system for an electric vehicle shed according to claim 1, wherein: the diameter of the suspended type electric starting dry powder fire extinguisher (9) is D, and the distance between two adjacent suspended type electric starting dry powder fire extinguishers (9) is not larger than the diameter D.
5. The fire protection system for an electric vehicle shed according to claim 1, wherein: a smoke probe (8) is arranged at the intersection of the fire extinguishing coverage areas of two adjacent suspension type electric starting dry powder extinguishers (9); the smoke probe (8) is electrically connected to the control platform (13), and when the smoke probe (8) is triggered, the control platform (13) controls the fire-fighting electromagnetic valve (19) or the hanging type electric-starting dry powder fire extinguisher (9) to be opened through the intermediate controller (12).
6. The fire protection system for an electric vehicle shed according to claim 1, wherein: the intermediate controller (12) is also electrically connected with an alarm (11), and when the parking space (1) catches fire, the intermediate controller (12) starts the alarm (11).
7. The fire protection system for an electric vehicle shed according to claim 1, wherein: the fire-fighting water pipe comprises a water main (6) and a branch pipe, and the branch pipe is arranged above the parking space (1) and is connected with the sprinkler head (5) through a fire-fighting electromagnetic valve (19); the branch pipe is communicated with the water main (6).
8. The fire protection system for an electric vehicle shed as in claim 7, wherein: the branch pipes are provided in plurality, and each branch pipe is arranged along the depth direction of the parking space (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320287409.0U CN219630478U (en) | 2023-02-08 | 2023-02-08 | Fire extinguishing system of electric vehicle shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320287409.0U CN219630478U (en) | 2023-02-08 | 2023-02-08 | Fire extinguishing system of electric vehicle shed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219630478U true CN219630478U (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320287409.0U Active CN219630478U (en) | 2023-02-08 | 2023-02-08 | Fire extinguishing system of electric vehicle shed |
Country Status (1)
| Country | Link |
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| CN (1) | CN219630478U (en) |
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2023
- 2023-02-08 CN CN202320287409.0U patent/CN219630478U/en active Active
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