Flame-retardant power distribution cabinet

Abstract

The invention relates to the technical field of electric appliances, in particular to a flame-retardant power distribution cabinet which comprises a power distribution cabinet body, a cabinet cavity is formed in the power distribution cabinet body, a mounting plate is arranged in the cabinet cavity, an electric appliance is further mounted on the mounting plate, the power distribution cabinet body further comprises a front doorway, and a cabinet door is mounted at the doorway. A fire extinguishing device is installed on the inner side of the cabinet door and comprises a containing box, the containing box is provided with a containing cavity, a connecting part is arranged on the back face of the containing box, flame-retardant cotton is installed in the containing cavity, the flame-retardant cotton is wrapped outside the containing cavity through a flammable material layer, and the periphery of the flammable material layer is fixed to the containing box. And under the condition that the flammable material layer wraps the flame-retardant cotton, the flame-retardant cotton is in a potential storage state. The power distribution cabinet has the advantages that fire extinguishing is quicker, and some fire extinguishing requirements can be met.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and more specifically to power distribution cabinets. Background Technology

[0002] The distribution cabinet includes a cabinet body, which has a cabinet cavity. An installation plate is installed inside the cabinet cavity, and electrical appliances are installed on the installation plate. The electrical appliances may be circuit breakers, transformers, various instruments, cables, etc. The distribution cabinet body also includes a front door with a cabinet door installed at the door. During use, these electrical appliances may sometimes catch fire. If the fire continues, it will cause greater damage.

[0003] The patent document with publication number "CN216750895U" and title "A Flame-Retardant Distribution Cabinet" discloses a flame-retardant distribution cabinet. It utilizes the principle that when the inside of the cabinet is burning, the temperature of the heat-sensing wire rises to the activation temperature of the induction switch, which then activates the connected temperature-sensing switch. This activates the electric telescopic rod, causing the partition to move downwards. The partition then seals multiple heat dissipation holes at the bottom of the cabinet, creating a closed environment inside the cabinet. Simultaneously, the temperature-sensing switch controls the fan to reverse, extracting air from inside the cabinet. This reduces the amount of air inside the cabinet, thereby reducing the oxygen content and eliminating the accelerant, one of the three elements of combustion, thus preventing combustion and achieving flame-retardant extinguishing.

[0004] Such flame-retardant distribution cabinets have the disadvantage of slow flame-retardant speed, which cannot meet the requirements of some rapid fire extinguishing. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned shortcomings by providing a flame-retardant power distribution cabinet that can extinguish fires more quickly and meet certain fire extinguishing requirements.

[0006] The technical solution of this invention is implemented as follows: a flame-retardant distribution cabinet includes a cabinet body, which has a cabinet cavity. An installation plate is disposed within the cabinet cavity, and electrical appliances are installed on the installation plate. The cabinet body also includes a front door with a cabinet door installed at the door. The feature is that a fire extinguishing device is installed inside the cabinet door. The fire extinguishing device includes a container, which has a connecting component on its back. Flame-retardant cotton is installed inside the container cavity, and the flame-retardant cotton is covered with a flammable material layer outside the container cavity. The flammable material layer is fixed to the container box on all sides. When covered by the flammable material layer, the flame-retardant cotton is in a state of potential expansion. When the flame-retardant cotton is not bound by the flammable material layer, it expands outward from the container cavity, and the side of the flame-retardant cotton away from the container cavity moves outward a certain distance. A layer of extinguishing powder is also present between the flame-retardant cotton and the flammable material layer.

[0007] To elaborate further, the flame-retardant cotton being in a state of accumulating potential means that there is a compressed spring inside the container cavity, which supports the flame-retardant cotton.

[0008] To elaborate further, the flame-retardant cotton being in a state of potential accumulation refers to the state in which the flame-retardant cotton is wrapped and compressed within a layer of flammable material.

[0009] Furthermore, the flame-retardant cotton, when in an expanded state, can form a structure with protruding edges and a concave center, with the concave center covering the electrical appliance.

[0010] Furthermore, a top plate is installed between the spring and the flame-retardant cotton.

[0011] Furthermore, the fire extinguishing device is multiple, and each fire extinguishing device is directed at a different electrical appliance.

[0012] The beneficial effects of this invention are: such a distribution cabinet has the advantages of faster fire extinguishing and can meet some fire extinguishing requirements. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the cabinet door of the present invention when it is opened.

[0015] Figure 3 yes Figure 1 A cross-sectional view along the A-A direction.

[0016] Figure 4 This is a front structural diagram of the fire extinguishing device in this invention.

[0017] Figure 5 yes Figure 4 A cross-sectional view along the B-B direction.

[0018] Figure 6 yes Figure 4 A cross-sectional view along the C-C direction.

[0019] Figure 7 Figure 4 A cross-sectional view along the B-B direction (when the flame-retardant cotton is in an expanded state towards the outside of the filling cavity).

[0020] Among them: 1. Distribution cabinet body 11. Cabinet cavity 12. Mounting plate 13. Electrical appliances 14. Cabinet door 2. Fire extinguishing device 21. Container box 211. Container cavity 212. Connecting parts 22. Fire extinguishing cotton 221. Protruding structure 222. Recessed structure 23. Flammable material layer 24. Fire extinguishing powder 25. Spring 26. Top plate. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] As shown in the figure, a flame-retardant distribution cabinet includes a cabinet body 1, which has a cabinet cavity 11. An installation plate 12 is installed inside the cabinet cavity, and electrical appliances 13 are also installed on the installation plate. The cabinet body also includes a front door with a cabinet door 14 installed at the door. The cabinet body is characterized by: a fire extinguishing device 2 installed inside the cabinet door, the fire extinguishing device including a container 21 with a container cavity 211, a connecting component 212 on the back of the container, flame-retardant cotton 22 installed inside the container cavity, and a flammable material layer 23 covering the flame-retardant cotton outside the container cavity. The flammable material layer is fixed to the container. When covered by the flammable material layer, the flame-retardant cotton is in a state of potential expansion. When the flame-retardant cotton is not bound by the flammable material layer, it expands outwards from the container cavity, moving a certain distance away from the container cavity. A layer of extinguishing powder 24 is also present between the flame-retardant cotton and the flammable material layer.

[0023] The connecting component can be any component that can be connected, such as adhesive, a fastener, or a screw hole.

[0024] The electrical appliances mentioned include, but are not limited to, circuit breakers, various instruments, transformers, control switches, cables, etc.

[0025] In use, this fire extinguishing device is installed on the cabinet door, directly facing the electrical appliance. The flammable material layer of the fire extinguishing device should not be too far from the appliance. When the appliance catches fire, it will ignite the flammable material layer. Then, because the flame-retardant cotton is not constrained by the flammable material layer, it will expand, i.e., accumulate energy. The flame-retardant cotton will cover the burning appliance, achieving the effect of extinguishing the fire. The whole process does not require manual intervention, extinguishes the fire quickly, and does not use liquid extinguishing agents. It can achieve the effects of timely fire extinguishing, convenient use, and safety of this invention.

[0026] The flammable material layer mentioned above is, for example, a layer of easily combustible materials such as silk, synthetic fiber cloth, or oil paper.

[0027] The extinguishing powder mentioned can be, for example, a dry powder extinguishing agent, made by mixing and grinding base materials such as baking soda (sodium bicarbonate), ammonium carbonate, and ammonium phosphate with lubricants (such as magnesium stearate) and moisture-proofing agents (such as talc and silica gel), resulting in fine granules. Its extinguishing principle is mainly to cover the surface of the burning material, isolating it from oxygen, and then decomposing it upon heating to produce non-combustible gases such as carbon dioxide, thereby suppressing the flame. This is a product in the existing technology; placing extinguishing powder is beneficial for releasing it to electrical appliances when a layer of flammable material burns or is damaged, and covering the extinguishing powder facilitates better fire suppression.

[0028] To elaborate further, the flame-retardant cotton being in a state of accumulating energy means that there is a compressed spring 25 inside the container cavity, which supports the flame-retardant cotton.

[0029] To elaborate further, the flame-retardant cotton being in a state of potential accumulation refers to the flame-retardant cotton being in a state of being tightly wrapped by a layer of flammable material.

[0030] Furthermore, the flame-retardant cotton, when in an expanded state, can form a structure with protruding structures 221 around the perimeter and a recessed structure 222 in the middle, with the recessed structure covering the electrical appliance.

[0031] Furthermore, a top plate 26 is installed between the spring and the flame-retardant cotton.

[0032] This invention is designed so that the spring can simultaneously propel the flame-retardant cotton, meaning the flame-retardant cotton simultaneously covers the burning electrical appliance, resulting in a better fire extinguishing effect.

[0033] Furthermore, the fire extinguishing device is multiple, and each fire extinguishing device is directed at a different electrical appliance.

[0034] This invention allows for targeted fire suppression of a single electrical appliance.

[0035] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A flame-retardant power distribution cabinet, comprising a cabinet body, the cabinet body having a cabinet cavity, a mounting plate disposed within the cabinet cavity, and electrical appliances mounted on the mounting plate; the cabinet body further comprising a front door, and a cabinet door being installed at the door; characterized in that: A fire extinguishing device is installed on the inside of the cabinet door. The fire extinguishing device includes a container with a cavity. A connecting component is located on the back of the container. Flame-retardant cotton is installed inside the cavity. The flame-retardant cotton is covered with a layer of flammable material on the outside of the cavity. The flammable material layer is fixed to the container. When covered by the flammable material layer, the flame-retardant cotton is in a state of potential expansion. When the flame-retardant cotton is not bound by the flammable material layer, it expands outward from the cavity, and the side of the flame-retardant cotton away from the cavity moves outward a certain distance. There is also a layer of fire extinguishing powder between the flame-retardant cotton and the flammable material layer.

2. The flame-retardant distribution cabinet according to claim 1, characterized in that: The flame-retardant cotton being in a state of accumulating potential refers to the presence of a compressed spring inside the container cavity, which supports the flame-retardant cotton.

3. The flame-retardant distribution cabinet according to claim 1, characterized in that: The flame-retardant cotton being in a state of potential accumulation refers to the flame-retardant cotton being in a state of being tightly wrapped by a layer of flammable material.

4. The flame-retardant distribution cabinet according to claim 3, characterized in that: The flame-retardant cotton, when in an expanded state, can form a structure with protruding edges and a recessed center, with the recessed center covering the electrical appliance.

5. The flame-retardant distribution cabinet according to claim 2, characterized in that: A top plate is also installed between the spring and the flame-retardant cotton.

6. The flame-retardant distribution cabinet according to claim 1, characterized in that: The fire extinguishing device is multiple, and each fire extinguishing device is directed at a different electrical appliance.

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