Indoor power distribution cabinet with fire extinguishing function

Abstract

The invention discloses an indoor power distribution cabinet with a fire extinguishing function, which comprises a power distribution cabinet structure and a cabinet door structure, and is characterized in that a circuit breaker and other electrical elements and an intelligent monitoring module are integrated in the power distribution cabinet structure to cooperate with a grounding and protection device; the cabinet door structure is connected with the power distribution cabinet structure through a hinge and can be freely opened and closed; in the power distribution cabinet main body, a flame-retardant cooling liquid groove surrounds the periphery of an electrical element to store heat-conducting, flame-retardant and insulating safe liquid, the outer surface is connected with a C-shaped heat dissipation conduit with a heat-conducting fin through a one-way circulation interface, and the middle of the conduit is connected with a circulating pump to form a circulation heat dissipation system to cool the internal element; when the temperature of a fire in the cabinet rises suddenly, a thermosensitive substance in the isolation thermosensitive storage tube of the cabinet door expands, pushes related parts to move, drives the stay wire to enable the circuit breaker to cut off a power supply, meanwhile, the loosening cone valve is separated from the valve seat, and safe liquid in the flame-retardant cooling liquid groove flows into a fire space, so that quick fire extinguishing, secondary electric shock prevention, combustion suppression and loss and risk reduction are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution equipment, and in particular to an indoor power distribution cabinet with a fire extinguishing function. Background Art

[0002] In outdoor scenarios of industrial production and people's livelihood electricity consumption, outdoor low-voltage electrical distribution cabinets, as the core hub of power distribution, play a key role with their rigorous professional design and stable performance. The cabinet body is made of high-strength cold-rolled steel plate and has undergone multiple anti-rust and anti-corrosion processes. It has an excellent protection level and can withstand wind and rain erosion and harsh environmental influences. It integrates precision electrical components such as circuit breakers, contactors, and fuses. Through scientific and reasonable wiring layout and insulation protection design, it ensures the accurate distribution and safe transmission of electric energy. At the same time, the cabinet body is equipped with an intelligent monitoring module to provide real-time feedback on operating parameters such as voltage and current. Combined with a complete grounding system and protective devices, it builds a solid line of defense for the stable supply of regional power, becoming an indispensable infrastructure to ensure the efficient operation of modern power networks.

[0003] However, in the actual operation of the power system, conventional distribution cabinets have significant shortcomings in terms of safety protection. When the distribution cabinet causes a short circuit due to problems such as aging lines, overload or loose joints, electric sparks can easily ignite the surrounding insulation materials and dust deposits, and the fire will spread rapidly in the closed cabinet space. Due to the lack of immediate response fire extinguishing devices, these distribution cabinets can often only passively withstand the continued burning of the fire. This "passive waiting for the burning to end before dealing with it" mode will not only significantly increase the equipment maintenance cost, but may also cause chain reactions such as factory production line shutdowns and commercial operation interruptions due to long-term power outages. In extreme cases, even larger-scale safety accidents may be caused by the uncontrolled fire, resulting in immeasurable economic losses and safety risks.

[0004] Therefore, an indoor power distribution cabinet with fire extinguishing function is proposed. Summary of the Invention

[0005] The object of the present invention is to provide an indoor power distribution cabinet with a fire extinguishing function to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an indoor power distribution cabinet with fire extinguishing function, comprising: Distribution cabinet structure; The cabinet door structure is connected to the open end of the distribution cabinet structure with hinges and other connecting components to open and close freely; The power distribution cabinet structure includes a power distribution cabinet body, and the power distribution cabinet body integrates precision electrical components such as circuit breakers, contactors, fuses, etc. The cabinet door structure includes a door panel, which is hingedly connected to an open port on the front side of the power distribution cabinet body, and is characterized in that: A pull wire is tied to the operating handle of the circuit breaker's main control electrical power, and the lower end of the pull wire is inserted through the valve seat and wrapped around the tip of the cone valve. The valve seat is interference-fitted in a through hole inside the ring plate that isolates the flame-retardant coolant tank inside the power distribution cabinet body and connects the flame-retardant coolant tank with the space where the circuit breaker is located. An isolating thermistor storage tube is fixed inside the door panel, and a return spring is fixed inside the isolating thermistor storage tube at one end away from the door panel, and the other end of the return spring inside the isolating thermistor storage tube is fixed to an expansion push rod with a sliding seal arranged inside the isolating thermistor storage tube. One end of the expansion push rod passes through the isolating thermistor storage tube to a groove depressed from the center position on the side of the door panel facing the interior of the power distribution cabinet body, and is fixed to a shrinking slide that fits the gap in the groove, and a pull-switch push rod is integrally provided on the surface of the shrinking slide corresponding to the pull wire.

[0007] Preferably, a flame-retardant coolant tank is provided in isolation around the intelligent monitoring module and the precision electrical components inside the main body of the power distribution cabinet. The interior of the flame-retardant coolant tank stores heat-conductive, flame-retardant and insulating safety liquid under pressure, and thread holes connected to the interior of the flame-retardant coolant tank are integrally opened on the upper side of the outer surface of the main body of the power distribution cabinet and below either left or right side, and two one-way circulation interfaces are installed in conjunction with the thread holes.

[0008] Preferably, the two one-way circulation interfaces are connected through a C-shaped heat dissipation pipe, and the surface of the heat dissipation pipe is integrally provided with a plurality of heat-conducting sheets for heat dissipation according to the C-shaped path, and these heat-conducting sheets are distributed in a reversing array along the inner core of the heat dissipation pipe and in contact with the surface path of the heat dissipation pipe. Among them, the one-way circulation interface located on the upper side is one-way open to the inside of the heat dissipation pipe, and the one-way circulation interface located on the left or right side is one-way open to the inside of the flame-retardant coolant tank.

[0009] Preferably, the middle position of the heat dissipation conduit path is pre-disconnected, and a circulating pump for actively circulating the safety liquid is sealed and connected to an integrated flange and bolts at the disconnection position of the heat dissipation conduit.

[0010] Preferably, the valve seat has a through hourglass-shaped valve hole at the axial center position, and the lower part of the valve hole has the same shape as the cone valve.

[0011] Preferably, a plurality of valve body springs are connected between the valve seat and the cone valve, and the cone valve is elastically constrained in combination with the valve body springs.

[0012] Preferably, the isolated heat-sensitive storage tubes are integrally connected via a rod perpendicular to the tubes.

[0013] Preferably, a sealing ring is provided on the peripheral side surface of the shrinking slide, and the sealing ring slides sealedly along the inner wall of the space where the circuit breaker is located under the push of the heat-sensitive material inside the isolating heat-sensitive storage tube, and is constrained by the movement of the reset spring.

[0014] Preferably, the end of the gate push rod is recessed to form a groove according to the size of the pull wire to facilitate docking.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts the structure of the power distribution cabinet. Driven by a circulating pump, the heat-conducting safety liquid enters the C-shaped heat dissipation pipe through the upper one-way circulation interface. The multiple heat-conducting fins distributed along the path reversing array on the surface of the pipe increase the heat dissipation area and improve the heat dissipation efficiency. The liquid then flows back to the flame-retardant coolant tank through the side one-way circulation interface, forming a continuous circulation, which can cool the internal electrical components and intelligent monitoring module in real time, avoid equipment failures caused by high temperature, ensure the stable operation of the power distribution cabinet and extend its service life. 2. The present invention cooperates with the distribution cabinet structure and the cabinet door structure. When the fire temperature in the cabinet rises suddenly, the heat-sensitive material in the isolating heat-sensitive storage tube of the door panel in the cabinet door structure expands, pushing the expansion push rod and the contraction slide to move. The pull-off push rod on the contraction slide drives the pull wire, which on the one hand causes the circuit breaker operating handle to cut off the main power supply and prevent the fire from spreading. On the other hand, the cone valve is loosened from the valve seat, and the flame-retardant insulating safety liquid in the flame-retardant coolant tank flows into the fire space through the valve hole, quickly extinguishing the fire, preventing secondary electric shock, and isolating the air to suppress combustion, thereby greatly reducing fire losses and safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural view of the present invention; Figure 2 It is a cross-sectional view of the entire left-right direction of the present invention; Figure 3 It is an overall cross-sectional view along the axis of the isolated heat-sensitive storage tube of the present invention; Figure 4 It is an overall cross-sectional view of the present invention at the valve seat position; Figure 5 This is a schematic diagram of the cabinet door structure of the present invention; Figure 6 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 7 For the present invention Figure 4 Enlarged view of point B in the middle.

[0017] In the picture: 1. Distribution cabinet structure; 11. Distribution cabinet body; 111. Flame-retardant coolant tank; 112. One-way circulation interface; 12. Heat dissipation duct; 13. Circulation pump; 14. Circuit breaker; 141. Pull wire; 142. Cone valve; 143. Valve body spring; 15. Valve seat; 2. Cabinet door structure; 21. Door panel; 211. Isolation thermosensitive storage tube; 212. Return spring; 213. Expansion push rod; 22. Retraction slide; 221. Gate push rod. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1 to 7 The present invention provides a technical solution for an indoor power distribution cabinet with a fire extinguishing function: An indoor power distribution cabinet with fire extinguishing function, comprising: The distribution cabinet structure 1 is made of high-strength cold-rolled steel plate and has undergone multiple anti-rust and anti-corrosion processes. It integrates precision electrical components such as circuit breakers 14, contactors, fuses, and is equipped with an intelligent monitoring module to provide real-time feedback on operating parameters such as voltage and current. It is also equipped with a complete grounding system and protective devices. The cabinet door structure 2 is connected to the open end of the distribution cabinet structure 1 with hinges and other connecting components to open and close freely. Among them, the distribution cabinet structure 1 includes a distribution cabinet body 11, the interior of the distribution cabinet body 11 integrates circuit breakers 14, contactors, fuses and other precision electrical components, and is equipped with an intelligent monitoring module, and the interior of the distribution cabinet body 11 is surrounded and isolated by a flame retardant coolant tank 111 around the intelligent monitoring module and the precision electrical components. The interior of the flame retardant coolant tank 111 is pressurized to store a heat-conducting, flame-retardant and insulating safety liquid, and a wire hole connected to the interior of the flame retardant coolant tank 111 is integrally opened on the upper side of the outer surface of the distribution cabinet body 11 and below either left or right side, and two one-way circulation interfaces 112 are installed in conjunction with the wire holes, and a C-shaped heat dissipation duct 12 is passed between the two one-way circulation interfaces 112. The heat dissipation pipe 12 is connected, and a plurality of heat-dissipating sheets for heat dissipation are integrally provided on the surface of the heat dissipation pipe 12 according to the C-shaped path, and these heat-dissipating sheets are distributed in a reversing array along the inner core of the heat dissipation pipe 12 on the surface of the heat dissipation pipe 12 in accordance with the surface path. The one-way circulation interface 112 located on the upper side is unidirectionally open to the inside of the heat dissipation pipe 12, and the one-way circulation interface 112 located on the left or right side is unidirectionally open to the inside of the flame-retardant coolant tank 111. The middle position of the pipe path of the heat dissipation pipe 12 is pre-disconnected, and a circulating pump 13 for actively circulating safety liquid is sealed and connected with an integrated flange and bolts at the disconnection position of the heat dissipation pipe 12, and the circulating pump 13 is electrically connected to the distribution cabinet body 11 through the line.

[0020] During daily operation, the heat-conductive, flame-retardant and insulating safety liquid stored under pressure in the flame-retardant coolant tank 111 in the distribution cabinet body 11 forms a circulating heat dissipation driven by the circulation pump 13. The safety liquid flows into the C-shaped heat dissipation duct 12 from the one-way circulation interface 112 on the upper side of the distribution cabinet body 11, and efficiently dissipates heat with the help of multiple heat-conducting plates distributed in a path reversing array on the surface of the duct. Then, it flows back to the flame-retardant coolant tank 111 through the one-way circulation interface 112 on the lower left or right side, continuously cooling the internal precision electrical components and intelligent monitoring modules to ensure the normal operation of the equipment.

[0021] To sum up, through the setting of the distribution cabinet structure 1, driven by the circulation pump 13, the heat-conducting safety liquid enters the C-shaped heat dissipation duct 12 through the upper one-way circulation interface 112, and the multiple heat-conducting plates distributed along the path reversing array on the surface of the duct increase the heat dissipation area and improve the heat dissipation efficiency. Then the liquid flows back to the flame-retardant coolant tank 111 through the side one-way circulation interface 112, forming a continuous circulation, which can cool the internal electrical components and intelligent monitoring modules in real time, avoid equipment failure due to high temperature, ensure the stable operation of the distribution cabinet and extend its service life.

[0022] As an embodiment of the present invention, Figure 4As shown, the circuit breaker 14 includes an operating handle for overall control of electrical power, and a wire hole is provided inside the operating handle, and a high-strength pull wire 141 is tied to the wire hole, and the lower end of the pull wire 141 is inserted through the valve seat 15 and wrapped around the tip of the cone valve 142. The valve seat 15 is interference-fitted inside the ring plate inside the distribution cabinet body 11 for isolating the flame-retardant coolant tank 111, and is inside the through hole that connects the flame-retardant coolant tank 111 and the space where the circuit breaker 14 is located. The axial position of the valve seat 15 is provided with an hourglass-shaped valve hole, and the lower part of the valve hole is the same shape as the cone valve 142. A plurality of valve body springs 143 are connected between the valve seat 15 and the cone valve 142, and the cone valve 142 is elastically constrained in combination with these valve body springs 143.

[0023] The cabinet door structure 2 includes a door panel 21, which is hingedly connected to the open port on the front side of the distribution cabinet body 11, and an isolation thermosensitive storage tube 211 is fixed symmetrically at the center position inside the door panel 21, and the isolation thermosensitive storage tubes 211 are integrally connected through a rod body perpendicular to them. A return spring 212 is fixed at the end of the isolation thermosensitive storage tube 211 away from the door panel 21, and the other end of the return spring 212 inside the isolation thermosensitive storage tube 211 is fixed to an expansion push rod 213 that is slidingly sealed and arranged inside the isolation thermosensitive storage tube 211, and one end of the expansion push rod 213 penetrates The isolating thermistor storage tube 211 is extended into a groove recessed from the center on one side of the door panel 21 facing the interior of the power distribution cabinet body 11, and is fixed with a retracting slide 22 that fits in the gap in the groove. A sealing ring is sleeved on the peripheral side of the retracting slide 22, and under the push of the thermosensitive material inside the isolating thermistor storage tube 211, the sealing ring slides sealedly along the inner wall of the space where the circuit breaker 14 is located, and is constrained by the movement of the reset spring 212. A gate push rod 221 is integrally provided on the surface of the retracting slide 22 corresponding to the pull wire 141, and the end of the gate push rod 221 is recessed according to the size of the pull wire 141 to facilitate docking and combination.

[0024] When a short circuit and fire are caused inside the power distribution cabinet due to aging of the lines, overload, etc., and the temperature inside the cabinet rises suddenly, the heat-sensitive material in the isolating thermistor storage tube 211 inside the door panel 21 of the cabinet door structure 2 expands due to the heat, pushing the expansion push rod 213 to overcome the elastic force of the reset spring 212 to move, and the expansion push rod 213 drives the shrinking slide 22 to slide along the inner wall of the space where the circuit breaker 14 is located, reducing the volume of the space where the circuit breaker 14 is located. At the same time, the pull-off push rod 221 on the shrinking slide 22 moves accordingly, and its end groove body docks with the pull wire 141 and pushes the pull wire 141. At this time, the pull wire On the one hand, 141 pulls the operating handle of the circuit breaker 14 to close the circuit breaker 14 that executes the master control, so that the power distribution cabinet main body 11 is quickly powered off to prevent the fire from spreading; on the other hand, the cone valve 142 is loosened and the valve body spring 143 moves downward, so that the cone valve 142 is separated from the hourglass-shaped valve hole of the valve seat 15, and the valve hole is opened. Under the action of pressure, the safety liquid in the flame-retardant coolant tank 111 quickly flows into the space where the circuit breaker 14 is located through the opened valve hole, using the flame-retardant properties to extinguish the fire and the insulation properties to prevent secondary electric shock. At the same time, the air is isolated to suppress combustion, thereby achieving effective fire extinguishing and comprehensive protection.

[0025] To sum up, through the cooperation between the distribution cabinet structure 1 and the cabinet door structure 2, when the fire temperature in the cabinet suddenly rises, the heat-sensitive material in the isolating heat-sensitive storage tube 211 of the door panel 21 in the cabinet door structure 2 expands, pushing the expansion push rod 213 and the shrinking slide 22 to move, and the pull-off push rod 221 on the shrinking slide 22 drives the pull wire 141, which on the one hand causes the operating handle of the circuit breaker 14 to cut off the main power supply and prevent the fire from spreading. On the other hand, the cone valve 142 is released from the valve seat 15, and the flame-retardant insulating safety liquid in the flame-retardant coolant tank 111 flows into the fire space through the valve hole, quickly extinguishing the fire, preventing secondary electric shock, and isolating the air to suppress combustion, thereby greatly reducing fire losses and safety risks.

[0026] Working Principle: During daily operation, the flame-retardant coolant tank 111 inside the power distribution cabinet body 11 stores a heat-conducting, flame-retardant, and insulating safety liquid (fluorinated liquid, water-based flame-retardant coolant, silicone oil, or ionic liquid, etc.) under pressure through a preset interface on the side of the power distribution cabinet body 11. Driven by the circulating pump 13, the heat is circulated. The safety liquid flows from the one-way circulation interface 112 on the upper side of the power distribution cabinet body 11 into the C-shaped heat dissipation duct 12. With the help of multiple heat-conducting plates distributed in a reversing array along the path on the surface of the duct, the heat is efficiently dissipated. The liquid then flows back to the flame-retardant coolant tank 111 through the one-way circulation interface 112 on the left or right side, continuously cooling the internal precision electrical components and intelligent monitoring modules to ensure the normal operation of the equipment. When a short circuit and fire occur inside the distribution cabinet due to aging of the lines, overload, etc., and the temperature inside the cabinet rises suddenly, the heat-sensitive material (glyceride mixture, alcohol mixture or low-melting-point salt solution, etc.) in the isolating thermistor storage tube 211 inside the door panel 21 in the cabinet door structure 2 expands due to the heat, pushing the expansion push rod 213 to overcome the elastic force of the reset spring 212 and move. The expansion push rod 213 drives the shrinking slide 22 to slide along the inner wall of the space where the circuit breaker 14 is located, so as to reduce the volume of the space where the circuit breaker 14 is located. At the same time, the pull-off push rod 221 on the shrinking slide 22 moves accordingly, and the groove at its end connects with the pull wire 141 and pushes the pull wire 141. At this time, the pull wire 141 drags the operating handle of the circuit breaker 14 on the one hand, so that the circuit breaker 14 that executes the master control is closed. , so that the power distribution cabinet main body 11 is quickly powered off, cutting off the power supply from the root, and preventing the fire from expanding due to continuous power supply. On the other hand, after the operating handle of the circuit breaker 14 falls down and closes, the pull wire 141 (with a certain elasticity) will be relaxed, and then the pull wire 141 will release the upward pull on the cone valve 142, and then the cone valve 142 will move downward under the action of the valve body spring 143, so that the cone valve 142 is separated from the hourglass-shaped valve hole of the valve seat 15, and the valve hole is opened. At this time, the safety liquid in the flame retardant coolant tank 111, under the action of pressure, quickly flows into the space where the circuit breaker 14 is located through the opened valve hole, extinguishing the open flame with its flame retardant properties, preventing secondary electric shock with its insulation properties, and isolating the air to further suppress combustion, thereby achieving effective fire extinguishing and comprehensive protection of the distribution cabinet.

[0027] It should be noted that the shrinking slide plate 22 and the expansion push rod 213 have heat conduction capabilities.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An indoor power distribution cabinet with fire extinguishing function, comprising: Distribution cabinet structure (1); The cabinet door structure (2) is connected to the open end of the power distribution cabinet structure (1) in cooperation with hinges and other connecting components to open and close freely; The power distribution cabinet structure (1) includes a power distribution cabinet body (11), and the power distribution cabinet body (11) internally integrates circuit breakers (14), contactors, fuses and other precision electrical components; The cabinet door structure (2) comprises a door panel (21), wherein the door panel (21) is connected to an open port on the front side of the power distribution cabinet body (11) with a hinge, and is characterized in that: A pull wire (141) is tied to the operating handle of the circuit breaker (14) for controlling the electrical power, and the lower end of the pull wire (141) is inserted through the valve seat (15) and wrapped around the tip of the cone valve (142). The valve seat (15) is interference-fitted in the through hole inside the ring plate for isolating the flame-retardant coolant tank (111) inside the power distribution cabinet body (11) and connecting the flame-retardant coolant tank (111) with the space where the circuit breaker (14) is located; An isolating thermosensitive storage tube (211) is fixed inside the door panel (21), and a return spring (212) is fixed inside the isolating thermosensitive storage tube (211) at one end away from the door panel (21), and the other end of the return spring (212) inside the isolating thermosensitive storage tube (211) is fixed to an expansion push rod (213) provided with a sliding seal inside the isolating thermosensitive storage tube (211), one end of the expansion push rod (213) passes through the isolating thermosensitive storage tube (211) to a groove recessed from the center position on one side of the door panel (21) facing the inside of the power distribution cabinet body (11), and is fixed to a shrinking slide plate (22) with a clearance fit in the groove, and a pull rod (221) is provided on the surface of the shrinking slide plate (22) corresponding to the pull wire (141).

2. The indoor power distribution cabinet with fire extinguishing function according to claim 1, characterized in that: The interior of the power distribution cabinet body (11) is provided with a flame retardant cooling liquid tank (111) in isolation around the intelligent monitoring module and the precision electrical components. The interior of the flame retardant cooling liquid tank (111) stores a heat-conducting, flame retardant and insulating safety liquid under pressure. Thread holes communicating with the interior of the flame retardant cooling liquid tank (111) are integrally provided on the upper side of the outer surface of the power distribution cabinet body (11) and below either left or right side thereof, and two one-way circulation interfaces (112) are provided in conjunction with the thread holes.

3. The indoor power distribution cabinet with fire extinguishing function according to claim 2, characterized in that: The two one-way circulation interfaces (112) are connected via a C-shaped heat dissipation pipe (12), and a plurality of heat conducting sheets for heat dissipation are integrally provided on the surface of the heat dissipation pipe (12) according to the C-shaped path, and the heat conducting sheets are arranged in a reversing array along the inner core of the heat dissipation pipe (12) and on the surface of the heat dissipation pipe (12), in accordance with the surface path. The one-way circulation interface (112) located on the upper side is one-way open to the inside of the heat dissipation pipe (12), and the one-way circulation interface (112) located on the left or right side is one-way open to the inside of the flame-retardant coolant tank (111).

4. The indoor power distribution cabinet with fire extinguishing function according to claim 3, characterized in that: The heat dissipation conduit (12) is pre-disconnected at the middle position of the pipe path, and a circulating pump (13) for actively circulating a safety liquid is sealed and connected to an integrated flange and bolts at the disconnection position of the heat dissipation conduit (12).

5. The indoor power distribution cabinet with fire extinguishing function according to claim 1, characterized in that: The valve seat (15) has a through hourglass-shaped valve hole at the axial center position, and the lower part of the valve hole has the same shape as the cone valve (142).

6. The indoor power distribution cabinet with fire extinguishing function according to claim 1, characterized in that: A plurality of valve body springs (143) are connected between the valve seat (15) and the cone valve (142), and the cone valve (142) is elastically constrained in combination with the valve body springs (143).

7. The indoor power distribution cabinet with fire extinguishing function according to claim 1, characterized in that: The isolated heat-sensitive storage tubes (211) are integrally connected via a rod body perpendicular to the isolated heat-sensitive storage tubes (211).

8. The indoor power distribution cabinet with fire extinguishing function according to claim 1, characterized in that: The side surface of the shrinking slide (22) is sleeved with a sealing ring, and under the push of the heat-sensitive material inside the isolating heat-sensitive storage tube (211), the sealing ring slides along the inner wall of the space where the circuit breaker (14) is located, and is constrained by the movement of the reset spring (212).

9. The indoor power distribution cabinet with fire extinguishing function according to claim 1, characterized in that: The end of the gate push rod (221) is recessed according to the size of the pull wire (141) to form a groove for easy docking.

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