Electric vehicle spontaneous combustion fire-fighting isolation device suitable for indoor parking lot
By designing a mobile fire isolation device, utilizing a metal enclosure and a water spray system, the problem of rapid isolation and cooling in the event of spontaneous combustion of electric vehicles was solved, thus protecting surrounding vehicles and buildings and reducing losses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 李文哲
- Filing Date
- 2026-03-18
- Publication Date
- 2026-05-12
Smart Images

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Abstract
Description
Technical Field
[0001] This invention belongs to the field of fire protection, specifically to fire isolation devices, and is applicable to indoor parking lots. It is a mobile fire isolation device for electric vehicles that is prone to spontaneous combustion. Background Technology
[0002] The rapid development of electric vehicles has led to challenges. Due to the characteristics of electric vehicle batteries, spontaneous combustion is difficult to extinguish, and existing fire extinguishers and firefighting equipment are insufficient to extinguish the fire quickly enough, making it difficult to control the situation and potentially causing secondary damage to surrounding vehicles. Furthermore, the prolonged high temperatures from burning can damage buildings and compromise their structural strength. Because electric vehicles are often parked alongside other vehicles, fixed fire isolation devices are ineffective. Therefore, a mobile fire isolation device is needed to isolate spontaneously combusting vehicles from other vehicles while preventing prolonged burning of the building structure. Currently, parking lots are equipped with fire hydrants, which can provide a water source for the isolation device, creating conditions for combining isolation with water spraying. Summary of the Invention
[0003] To address the aforementioned problems, this invention proposes a mobile fire-fighting device for electric vehicles and indoor parking scenarios. This device isolates a spontaneously combusting vehicle from surrounding vehicles and also isolates the vehicle from the ground over a large area. The overall isolation device minimizes the fire's spread. The surrounding metal casing, flexible metal roller shutters, and foldable soft baffles minimize damage to surrounding vehicles. The top, bottom, and shallow water collection trough minimize impact on the parking lot building itself, thus minimizing the overall impact on the building. When the foldable soft baffles are lowered, the isolation device creates a relatively enclosed space, reducing the fire's impact on the surrounding area and isolating air. A water sprinkler system is installed inside the isolation device. Fire hydrants in the parking lot are used to connect fire water to the isolation device, creating a three-dimensional water sprinkler system inside, which directly and effectively reduces the temperature of the battery at the bottom of the electric vehicle. The relatively enclosed space inside the isolation device helps isolate air, control the fire, and reduce the leakage of harmful gases. This device is simple in structure, low in cost, occupies little space, and is easy to deploy. Attached Figure Description
[0004] Figure 1 This is a schematic diagram of the overall structure and main components of an electric vehicle fire isolation device. The main components are detailed below. Figure 1 As shown: 101 is a metal outer casing: composed of three metal plates on the front, left, and rear sides, as well as shallow water tanks on the top and bottom plates, all made of stainless steel. Its function is to serve as the main structure isolating the self-igniting electric vehicle from surrounding objects and buildings. 102 consists of a base plate and a shallow water collection trough: the left side is integrated with the outer cover, while the right side is separate from the outer cover, allowing space for the width and length of a car tire. Its function is to ensure that the isolation device can be quickly and completely pushed into the self-igniting electric vehicle. Simultaneously, a water-retaining edge of approximately 5 cm high is formed around the base plate, creating a shallow water collection trough for collecting spray water. This trough isolates the self-igniting electric vehicle from the building floor, preventing the large amount of heat released when the battery at the bottom of the car burns from directly affecting the building floor and reducing the damage to the building from the fire. 103 is a foldable soft baffle on all four sides: located at the bottom of the outer cover and the metal soft roller shutter, it is made of fire-resistant asbestos material and folds upward when not in use. Its function is to pull down the metal soft roller shutter and fold down the foldable soft baffle on all four sides when the isolation device is pushed into the position of the spontaneously combusting electric vehicle, so that the interior of the overall isolation device forms a relatively closed space; 104 is the observation window of the outer casing: one on each side of the front and rear of the outer casing, made of explosion-proof glass, used to observe the degree of combustion of the electric vehicle inside the isolation device so that countermeasures can be taken; 105 is a metal soft roller shutter: connected to a movable metal cover via a sliding rail. Its function is to push the metal soft roller shutter to the top of the cover when the metal cover needs to be pushed into the spontaneously combusting electric vehicle, creating a gap to ensure that the isolation device can be quickly and completely pushed into the electric vehicle and cover it. After the isolation device is pushed into the electric vehicle, the metal soft roller shutter is pulled down to completely isolate the vehicle from all sides. 106 is a metal flexible roller blind track: located at the top of the metal casing. Its function is to act as a limiting track for the metal flexible roller blind, meeting the requirements for rapid pushing and pulling. 107 consists of upper and lower spray heads: fixed to the spray water pipes inside the metal casing, with two rows of spray heads at the top and two at the bottom. Their function is to continuously spray water onto the spontaneously combusting electric vehicle after connecting to a fire hydrant, thus cooling it down. Simultaneously, a steam chamber is formed inside the isolation device, reducing the degree of combustion and minimizing the escape of harmful gases through the combined action of water spray and steam. 108 consists of upper and lower spray pipes: fixed to the top and bottom plates of the metal casing, with the spray heads fixed to the spray pipes. Their function is to provide a water circuit for supplying water to the spray heads. 109 is a spare fire hose rack: fixed to the left side of the exterior of the metal casing. Its purpose is to prevent the fire hoses attached to the building's fire hydrants from being too short or unusable. 110 is the fire hose connection: fixed on the left side of the metal casing, it connects to the sprinkler pipe. Its function is as a fire hydrant connection; fire water is introduced into the isolation device through this connection and then supplied to the sprinkler system. 111 are base plate support wheels: there are 2 of them, located at the bottom right side of the base plate. Their function is to provide support when the right side of the base plate is separated from the outer cover and lacks support, while ensuring that the isolation device can be moved as a whole. 112 refers to four casters for the outer casing, fixed to the bottom of the metal casing. Their function is to provide support for the outer casing of the isolation device and ensure smooth overall movement of the isolation device.
[0005] Figure 2 This is a front view of the device. The height and left and right length dimensions of the isolation device are marked, in centimeters.
[0006] Figure 3 This is the left view of the device. The height and front-to-back width dimensions of the isolation device are marked, in centimeters.
[0007] Figure 4 It is a device Figure 1 Top view of section AA. The length and width of the isolation device, as well as the dimensions of the base plate and shallow water tank, are marked in centimeters. Detailed Implementation
[0008] Example 1: The system can be deployed in the underground parking garage of a residential building, in zones, for example, one unit per floor, with each unit occupying one parking space. If each floor is large, it can be further divided into zones, with one unit deployed in each zone, each occupying one parking space.
[0009] Example 2: The equipment can be deployed in underground parking lots of shopping malls or office buildings, and can be arranged in zones, for example, one set per floor, with each set occupying one parking space. If each floor is large, it can be further divided into zones, with one set deployed in each zone, each occupying one parking space.
Claims
1. A fire-fighting isolation device for spontaneous combustion of electric vehicles suitable for indoor parking lots, characterized in that, include: Movable metal casing and metal soft roller blind; A water spray system is installed inside the metal casing; A water spray system and a shallow water collection tank are installed at the bottom of the metal casing; Fire hoses and fire hose inlets are installed on the outside of the metal casing; And each of the four sides of the bottom of the outer cover is equipped with a foldable soft baffle.
2. The electric vehicle spontaneous combustion fire isolation device according to claim 1, characterized in that, Movable metal cover and metal soft roller blind.
3. The electric vehicle spontaneous combustion fire isolation device according to claim 1, characterized in that, The water spray system inside the metal casing.
4. The electric vehicle spontaneous combustion fire isolation device according to claim 1, characterized in that, The water spray system and shallow water collection tank at the bottom of the metal cover.
5. The electric vehicle spontaneous combustion fire isolation device according to claim 1, characterized in that, The fire hose and fire hose interface are located outside the metal casing.
6. The electric vehicle spontaneous combustion fire isolation device according to claim 1, characterized in that, Foldable soft baffles are installed around the bottom of the outer cover.
7. A control method for fire isolation of spontaneous combustion of electric vehicles in indoor parking lots, applied to the fire isolation device for spontaneous combustion of electric vehicles as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1: The self-igniting electric vehicle is isolated from the outside by a movable metal outer cover, a metal soft roller shutter and a bottom foldable soft baffle, forming a relatively closed space; S2: Connect to the building's fire protection system via fire hoses and fire hose interfaces (the fire hydrant closest to the spontaneously combusting electric vehicle in the parking lot), continuously cool the spontaneously combusting electric vehicle through the water spray system inside the metal enclosure, and generate water vapor in the relatively enclosed space to reduce the intensity of combustion and reduce the leakage of toxic gases produced by combustion. S3: The shallow water trough at the bottom of the metal casing isolates the bottom of the spontaneously combusting electric vehicle from the building floor, reducing the damage to the building structure caused by the fire. S4: By combining isolation with water spraying in the above method, the degree of combustion of spontaneously combusting electric vehicles can be controlled over a long period of time, and surrounding vehicles and buildings can be isolated.