Fireproof flame-retardant inner container for electric vehicle charging garage
By coating the outer steel plate of the electric vehicle charging station with water-based epoxy fireproof coating and installing flame-retardant components and fire extinguishing balls, the problem of fire spread when an electric vehicle catches fire is solved, achieving fireproofing, heat insulation, and rapid fire extinguishing, thus reducing the loss and maintenance costs of the charging station.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN TECHNOLOGY (JIANGSU) CO LTD
- Filing Date
- 2024-04-25
- Publication Date
- 2026-04-28
AI Technical Summary
When an electric vehicle catches fire, the fire can spread so intensely that the steel plates of the existing charging stations are burned through, and the flames can spread to the outside of the charging stations, causing fires in adjacent charging stations, resulting in property damage and safety hazards.
A fire-retardant coating made of water-based epoxy fire-retardant paint is applied to the outer wall of the steel plate, and is equipped with flame-retardant components and fire extinguishing balls to form a fire-resistant and heat-insulating layer and a structure for rapidly suppressing fire. The structure includes flame-retardant fireproof cloth, heat-insulating aerogel layer and fire extinguishing balls.
It effectively prevents the fire from spreading, avoids the charging depot from burning through or breaking, reduces property damage, improves the service life and safety of the charging depot, and reduces maintenance costs.
Smart Images

Figure CN224173799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle charging station technology, specifically a fireproof and flame-retardant inner liner for electric vehicle charging stations. Background Technology
[0002] With the widespread use of electric vehicles, a single-person, single-vehicle box-type electric vehicle charging station exists to ensure that electric vehicles are charged without being affected by other electric vehicles catching fire or falling over. This box-type charging station is for charging electric vehicles. In the existing technology, the inner liner of the box-type electric vehicle charging station is made of steel plate. When an electric vehicle catches fire, the fire is fierce and instantaneous, making it easy for the steel plate of the box-type electric vehicle charging station to be burned through, causing the flames to spread to the outside of the charging station, and then causing adjacent box-type electric vehicle charging stations to be affected by the flames and catch fire. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a fireproof and flame-retardant inner liner for electric vehicle charging stations, solving the problem that existing electric vehicle charging stations are burned through and rendered unusable when an electric vehicle catches fire due to excessive flames.
[0004] To achieve the above objectives, this utility model provides a fireproof and flame-retardant inner liner for an electric vehicle charging station, including an electric vehicle charging box. The electric vehicle charging box has a receiving cavity for accommodating external electric vehicles. A steel plate is laid on the inner peripheral wall of the receiving cavity, and a fireproof coating is applied to the outer wall of the steel plate. The fireproof coating is made of water-based epoxy fireproof paint. Flame-retardant components are provided on the steel plate for quickly suppressing the fire when an external electric vehicle catches fire.
[0005] The advantages of adopting the above technical solution are: the fireproof coating is applied to the outer wall of the steel plate, and the fireproof coating is made of water-based epoxy fireproof coating, specifically KSF-062S water-based epoxy fireproof coating, which is a water-based two-component epoxy fireproof coating. It has good water resistance, workability, and excellent flame retardant and heat insulation capabilities. It also has good adhesion and can be applied to the surface of substrates such as steel and wood. Upon contact with fire, it carbonizes and expands to form a fire-resistant and heat-insulating layer. Therefore, when an electric vehicle catches fire, it can rapidly expand to form a fire-resistant and heat-insulating layer, thus preventing the electric vehicle charging station from burning through and damaging adjacent unburned charging stations, thereby reducing the risk of fire. The technology minimizes property damage during fires and prevents the charging station from burning through or breaking down, which could lead to its collapse and affect adjacent charging stations and electric vehicles. The flame-retardant components in the above technology are used to quickly suppress fires when external electric vehicles catch fire, preventing the fire from becoming too large and affecting subsequent maintenance of the charging station. This means that after the fire is extinguished, a fire-retardant coating can be reapplied to extend the charging station's lifespan and reduce replacement costs. Existing technologies often install a ventilation system in electric vehicle charging stations. This system is existing technology and extracts smoke accumulated in the charging station during and after a fire. Since this is also existing technology, its structure and function will not be described in detail here.
[0006] The present invention further specifies that the thickness of the fireproof coating ranges from 1 mm to 3 mm.
[0007] The advantages of adopting the above technical solution are: the thickness of the fireproof coating in the above technology ranges from 1mm to 3mm, which gives it excellent flame retardant and heat insulation capabilities. At the same time, this thickness range allows it to form a thicker fire-resistant and heat-insulating layer when it expands when exposed to fire, thereby preventing the charging tank from being burned through.
[0008] The present invention further includes a flame-retardant and fireproof cloth provided between the steel plate and the inner peripheral wall of the accommodating cavity.
[0009] The advantage of adopting the above technical solution is that the installation of flame-retardant and fireproof cloth further prevents the fire from burning through the charging warehouse and affecting adjacent charging warehouses.
[0010] The present invention further includes a heat-insulating aerogel layer between the flame-retardant and fireproof cloth and the steel plate.
[0011] The advantage of adopting the above technical solution is that the setting of the heat insulation aerogel layer in the above technology further avoids the fire burning through the charging tank and affecting adjacent charging tanks.
[0012] The present invention further includes: the flame-retardant component includes a fire extinguishing ball disposed on a steel plate, the fire extinguishing ball being filled with ABC dry powder extinguishing agent.
[0013] The advantages of adopting the above technical solution are: the fire extinguishing ball in the above technology is used to quickly spray ABC dry powder extinguishing agent when the electric vehicle catches fire, which can suppress the fire and even achieve the effect of extinguishing the fire. This avoids the fire from being too large or too fast, which would make it difficult for the fire sprinklers pre-installed in the existing charging warehouse to suppress a large fire, and even avoids the fire sprinklers being damaged by the fire if they are not sprayed in time. The fire extinguishing ball in the above technology is existing technology, so its structure and function will not be described in detail.
[0014] This utility model further includes: a slot for accommodating the lead wire of a fire extinguishing ball is formed along the height direction of the steel plate on the fireproof coating; a through groove is formed on the fireproof coating for exposing the powder spraying port of the fire extinguishing ball; the through groove is connected to the slot; a fixing plate is welded to the steel plate at the position corresponding to the through groove; the fixing plate is bent towards the fire extinguishing ball and its inner wall surface partially abuts against the outer wall surface of the fire extinguishing ball; the fixing plate is welded to the steel plate; and the fireproof coating covers the inner wall surface of the through groove and the outer wall surface of the steel plate.
[0015] The advantages of adopting the above technical solution are as follows: In the above technology, the fire extinguishing ball is coated with a fireproof coating and installed in a through groove. Then, a fixing plate is welded on to fix and clamp the fire extinguishing ball to prevent it from falling. At the same time, when the electric vehicle catches fire, the fire spreads from bottom to top, and the groove design allows the fire extinguishing ball to be positioned high. The fire extinguishing ball's lead wire is fixed in the groove from top to bottom, so that when the fire starts, the lead wire will encounter the fire first and trigger the fire extinguishing ball. This allows the fire extinguishing ball to spray extinguishing agent to suppress the fire on the electric vehicle or even extinguish the fire. The fire extinguishing ball's high position allows it to have a wide spray range, covering the entire electric vehicle, thereby improving the efficiency of fire suppression. In the above technology, the fire extinguishing ball's lead wire is also the trigger switch. When the lead wire encounters the fire, the fire extinguishing ball will quickly spray dry powder. Since the fire extinguishing ball is existing technology, its structure and function will not be described in detail. Attached Figure Description
[0016] Figure 1 This is a three-dimensional view of the present invention;
[0017] Figure 2 This is a front view of the present invention. Detailed Implementation
[0018] This utility model provides a fireproof and flame-retardant inner liner for an electric vehicle charging station, including an electric vehicle charging box 1. The electric vehicle charging box 1 has a receiving cavity 11 for accommodating external electric vehicles. A steel plate 2 is laid on the inner peripheral wall of the receiving cavity 11, and a fireproof coating 3 is coated on the outer wall of the steel plate 2. The fireproof coating 3 is made of water-based epoxy fireproof paint. A flame-retardant component is provided on the steel plate 2 for quickly suppressing the fire when an external electric vehicle catches fire. The thickness of the fireproof coating 3 ranges from 1mm to 3mm. A flame-retardant and fireproof cloth 4 is provided between the steel plate 2 and the inner peripheral wall of the receiving cavity 11. A heat-insulating aerogel layer 41 is provided between the flame-retardant and fireproof cloth 4 and the steel plate 2. The flame-retardant component includes components disposed on the steel plate. The fire extinguishing ball 5 on the steel plate 2 is filled with ABC dry powder extinguishing agent. The fireproof coating 3 has a slot 31 along the height of the steel plate 2 to accommodate the lead wire 51 of the fire extinguishing ball 5. The fireproof coating 3 has a through groove 32 to expose the powder spraying port of the fire extinguishing ball 5. The through groove 32 is connected to the slot 31. The steel plate 2 has a fixing plate 21 welded to the position corresponding to the through groove 32. The fixing plate 21 is bent towards the fire extinguishing ball 5 and the inner wall of the fixing plate 21 is partially in contact with the outer wall of the fire extinguishing ball 5. The fixing plate 21 is welded to the steel plate 2. The fireproof coating 3 covers the inner wall of the through groove 32 and the outer wall of the steel plate 2.
[0019] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A fireproof and flame-retardant inner liner for an electric vehicle charging station, comprising an electric vehicle charging box, wherein the electric vehicle charging box has a receiving cavity for accommodating external electric vehicles, characterized in that: A steel plate is laid on the inner wall of the accommodating cavity, and a fire-retardant coating is applied to the outer wall of the steel plate. The fire-retardant coating is made of water-based epoxy fire-retardant paint. A flame-retardant component for quickly suppressing the fire when an electric vehicle catches fire is provided on the steel plate. The flame-retardant component includes a fire extinguishing ball installed on the steel plate. The fire extinguishing ball is filled with ABC dry powder extinguishing agent. A slot is opened along the height of the steel plate on the fire-retardant coating to accommodate the lead wire of the fire extinguishing ball. A through groove is opened on the fire-retardant coating to expose the powder spraying port of the fire extinguishing ball. The through groove is connected to the slot. A fixing plate is welded to the steel plate at the position corresponding to the through groove. The fixing plate is bent towards the fire extinguishing ball and its inner wall surface is partially abutting against the outer wall surface of the fire extinguishing ball. The fixing plate is welded to the steel plate. The fire-retardant coating covers the inner wall surface of the through groove and the outer wall surface of the steel plate.
2. The fireproof and flame-retardant inner liner for an electric vehicle charging station according to claim 1, characterized in that: The thickness of the fire-retardant coating ranges from 1 mm to 3 mm.
3. The fireproof and flame-retardant inner liner for an electric vehicle charging station according to claim 1, characterized in that: A flame-retardant and fireproof cloth is provided between the steel plate and the inner peripheral wall of the accommodating cavity.
4. The fireproof and flame-retardant inner liner for an electric vehicle charging station according to claim 3, characterized in that: A heat-insulating aerogel layer is provided between the flame-retardant and fireproof cloth and the steel plate.