Electrical fireproof cabinet

Abstract

The utility model discloses an electrical fireproof cabinet, which comprises a cabinet body, a cabinet door hinged on the cabinet body and air holes arranged on two sides of the cabinet body, and further comprises a smoke audible and visual alarm communicated with an inner cavity of the cabinet body and fixedly arranged at the top of the inner cavity of the cabinet body; the plugging assembly is fixedly arranged at the position, corresponding to the air hole, of the inner side wall of the cabinet body and comprises a pressure-bearing sealing seat fixedly arranged on the inner side wall of the cabinet body, a plugging plate which is arranged at the opening end of the pressure-bearing sealing seat in a sliding mode and is fixedly arranged on the pressure-bearing sealing seat, and the distance between the plugging plate and the pressure-bearing sealing seat is adjustable; the driving piece is used for driving the plugging plate to abut against the opening end of the pressure-bearing sealing seat; and the fire extinguishing assembly is arranged in the inner cavity of the cabinet body and comprises a fire extinguishing tank and a spraying assembly communicated with the fire extinguishing tank. When a fire breaks out in the cabinet body, the smoke audible and visual alarm is triggered and further triggers the driving part and a normally-closed electromagnetic valve in the spraying assembly, so that the air hole is blocked, and a fire extinguishing agent is sprayed.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, specifically to an electrical fireproof cabinet. Background Technology

[0002] As a crucial device for housing and protecting electrical equipment, electrical cabinets play an indispensable role in various locations. However, existing electrical cabinet designs often prioritize functionality while neglecting the vital aspect of fire resistance. When a fire occurs inside or outside the electrical cabinet, the lack of an effective fire-resistant structure can lead to the rapid spread of the fire, threatening not only the safe operation of electrical equipment but also potentially causing significant property damage and personal injury.

[0003] While some existing electrical cabinets use shells made of flame-retardant materials, these materials can only slow the spread of fire in the short term and cannot extinguish it. Electrical cabinets typically house a large number of wires, cables, and electronic components. In the event of a short circuit or overload, a fire can easily ignite inside the cabinet. Furthermore, the cabinet's ventilation and heat dissipation design can become a conduit for oxygen supply and fire spread, further exacerbating the fire risk.

[0004] Therefore, this application proposes an electrical fireproof cabinet to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to overcome the above-mentioned shortcomings and provide an electrical fireproof cabinet that can automatically close the heat dissipation channel and extinguish the flames when a fire starts inside the cabinet, thus preventing the fire from spreading.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An electrical fireproof cabinet includes a cabinet body, a cabinet door hinged to the cabinet body, and ventilation holes on both sides of the cabinet body. It also includes: a smoke and light alarm, communicating with the inner cavity of the cabinet body and fixedly mounted on its top; a sealing assembly, fixedly mounted on the inner side wall of the cabinet body corresponding to the ventilation holes, including a pressure-bearing sealing seat fixedly mounted on the inner side wall of the cabinet body, a sealing plate slidably mounted at an adjustable distance from the pressure-bearing sealing seat at the opening end of the pressure-bearing sealing seat, and a driving member fixedly mounted on the pressure-bearing sealing seat for driving the sealing plate to abut against the opening end of the pressure-bearing sealing seat; and a fire extinguishing assembly, disposed in the inner cavity of the cabinet body, including a fire extinguisher and a spraying assembly communicating with the fire extinguisher.

[0008] Furthermore, the pressure-bearing sealing seat includes a frame, an annular mounting skirt fixedly disposed at one end of the frame, a sealing groove opened at the other end of the frame, and a sealing ring engaged in the sealing groove. The frame covers the inner side wall of the cabinet at the location corresponding to the vent hole.

[0009] Furthermore, multiple guide posts are vertically arranged on the mounting skirt, and a stop block is fixedly provided at the end of each guide post. The sealing plate is simultaneously inserted through the multiple guide posts.

[0010] Furthermore, the block is made of permanent magnet material, and the sealing plate is an iron plate.

[0011] Furthermore, the driving component includes a plurality of suction cup electromagnets evenly arranged around the mounting skirt and an independent power supply disposed on the cabinet and electrically connected to the suction cup electromagnets.

[0012] Furthermore, the spraying assembly includes a normally closed solenoid valve connected to the outlet of the fire extinguisher, a delivery pipe fixedly installed in the inner cavity of the cabinet and connected to the normally closed solenoid valve, and a plurality of nozzles connected to the delivery pipe.

[0013] Furthermore, the delivery pipe is arranged on the inner wall of the cabinet near the cabinet door, and the nozzle is oriented towards the direction in which electrical components are installed inside the cabinet.

[0014] Furthermore, the extinguishing agent stored in the fire extinguishing canister is perfluorohexanone.

[0015] Furthermore, the smoke alarm and normally closed solenoid valve are electrically connected to an independent power supply.

[0016] The beneficial effects of this utility model are reflected in:

[0017] This invention features a sealing assembly consisting of a pressure-bearing sealing seat, a sealing plate, and a driving component. Guide posts and stops are also provided on the sealing assembly. During normal operation of the electrical cabinet, the sealing plate slides along the guide posts until it abuts against the stops, ensuring the unobstructed flow of the vents. When a fire breaks out in the cabinet, the driving component moves the sealing plate to press against the pressure-bearing sealing seat, sealing the vents and preventing oxygen from outside the cabinet from entering the internal cavity and fueling the fire. It also prevents the fire from spreading from the vents to the outside of the cabinet. Furthermore, a fire extinguishing assembly consisting of a fire extinguishing canister, a normally closed solenoid valve, a delivery pipe, and a spray system is provided. When a fire occurs in the cabinet, the normally closed solenoid valve is opened to extinguish the fire. An independent power supply provides power to the smoke detector, normally closed solenoid valve, and suction cup electromagnet, ensuring their operational stability and facilitating the use of the smoke detector's alarm as a signal to trigger the normally closed solenoid valve and suction cup electromagnet. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall appearance of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the cabinet according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the fire extinguishing component structure according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the sealing component structure according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of a pressure-bearing sealing seat structure according to an embodiment of the present invention.

[0024] In the diagram: 1. Cabinet; 2. Cabinet door; 3. Ventilation hole; 4. Smoke and light alarm; 5. Guide column; 6. Sealing assembly; 61. Pressure-bearing sealing seat; 611. Frame; 612. Mounting skirt; 613. Sealing groove; 614. Sealing ring; 62. Sealing plate; 63. Drive component; 631. Suction cup electromagnet; 632. Independent power supply; 7. Fire extinguishing assembly; 71. Fire extinguishing canister; 72. Spraying assembly; 721. Normally closed solenoid valve; 722. Delivery pipe; 723. Nozzle; 8. Stop block. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1-5 As shown, this utility model provides an electrical fireproof cabinet, including: a cabinet body 1, a cabinet door 2 hinged to the cabinet body 1, and ventilation holes 3 on both sides of the cabinet body 1; a smoke and light alarm 4, which communicates with the inner cavity of the cabinet body 1 and is fixedly installed on its top; a sealing assembly 6, which is fixedly installed on the inner side wall of the cabinet body 1 at the location corresponding to the ventilation holes 3, including a pressure-bearing sealing seat 61 fixedly installed on the inner side wall of the cabinet body 1, a sealing plate 62 which is slidably installed at the opening end of the pressure-bearing sealing seat 61 at a distance adjustable from it, and a driving member 63 fixedly installed on the pressure-bearing sealing seat 61 for driving the sealing plate 62 to abut against the opening end of the pressure-bearing sealing seat 61; and a fire extinguishing assembly 7, which is installed in the inner cavity of the cabinet body 1, including a fire extinguishing tank 71 and a spraying assembly 72 communicating with the fire extinguishing tank 71.

[0027] When a fire breaks out inside cabinet 1, the smoke and light alarm 4 detects the smoke produced by the fire and sounds an alarm to remind staff to deal with the fire in time. It also triggers the drive unit 63 and the spraying component 72 to work. The drive unit 63 drives the sealing plate 62 to press against the pressure-bearing sealing seat 61, thereby sealing the vent 3 and preventing oxygen from outside cabinet 1 from entering the inner cavity through the vent 3 to fuel the fire. It also prevents the fire from spreading from the vent 3 to the outside of cabinet 1. Under the triggering action of the smoke and light alarm 4, the spraying component 72 sprays the extinguishing agent in the fire extinguisher 71 to extinguish the fire. Together with the sealing component 6, they play a fire prevention role.

[0028] In one embodiment, the pressure-bearing sealing seat 61 includes a frame 611, an annular mounting skirt 612 fixedly disposed at one end of the frame 611, a sealing groove 613 opened at the other end of the frame 611, and a sealing ring 614 locked in the sealing groove 613. The frame 611 covers the inner side wall of the cabinet 1 around the area corresponding to the vent hole 3.

[0029] This design uses screws to fix the mounting skirt 612 to the cabinet 1, thereby fixing the pressure-bearing sealing seat 61 as a whole. When the sealing plate 62 abuts against the frame 611, it first abuts against the sealing ring 614, thus ensuring the sealing between the sealing plate 62 and the frame 611 and preventing gaps.

[0030] In one embodiment, multiple guide posts 5 are vertically arranged on the mounting skirt 612, and a stop block 8 is fixedly arranged at the end of the guide post 5. The sealing plate 62 is simultaneously inserted through the multiple guide posts 5.

[0031] With this design, the distance between the sealing plate 62 and the pressure-bearing sealing seat (61) can be changed by sliding the sealing plate 62 along the axial direction of the guide post 5. The stop block 8 can prevent the sealing plate 62 from sliding off the guide post 5. When the electrical fireproof cabinet is in normal use, the sealing plate 62 is slid to abut against the stop block 8 to ensure that the vent hole 3 is unobstructed. When a fire occurs inside the cabinet, the drive component 63 drives the sealing plate 62 to slide along the guide post 5 and press against the pressure-bearing sealing seat 61, thereby sealing the vent hole 3, preventing oxygen from outside the cabinet 1 from entering the inner cavity through the vent hole 3 and fueling the fire, and preventing the fire from spreading from the vent hole 3 to the outside of the cabinet 1.

[0032] In one embodiment, the block 8 is made of permanent magnet material, and the sealing plate 62 is an iron plate.

[0033] With this design, when the electrical fireproof cabinet is in normal use, the sealing plate 62 will slide to abut against the stop block 8, and the stop block 8 will hold the sealing plate 62 in place, preventing the sealing plate 62 from sliding freely along the guide post 5 during use and abutting against the pressure-bearing sealing seat 61, which would prevent the electrical cabinet from dissipating heat properly.

[0034] In one embodiment, the drive unit 63 includes a plurality of suction cup electromagnets 631 evenly arranged around the mounting skirt 612 and an independent power supply 632 disposed on the cabinet 1 and electrically connected to the suction cup electromagnets 631.

[0035] With this design, when the independent power supply 632 powers the suction cup electromagnet 631, the suction cup electromagnet 631 applies a suction force to the iron sealing plate 62, causing it to slide along the guide post 5 until it presses against the pressure-bearing sealing seat 61, thereby achieving the driving effect on the sealing plate 62.

[0036] In one embodiment, the spraying assembly 72 includes a normally closed solenoid valve 721 connected to the outlet of the fire extinguisher 71, a delivery pipe 722 fixedly disposed in the inner cavity of the cabinet 1 and connected to the normally closed solenoid valve 721, and a plurality of nozzles 723 connected to the delivery pipe 722.

[0037] With this design, when a fire breaks out inside cabinet 1, the normally closed solenoid valve 721 is opened, and the extinguishing agent in the fire extinguishing tank 71 is delivered to the nozzles 723 through the delivery pipe 722 and sprayed outward through the nozzles 723 to extinguish the flames in cabinet 1.

[0038] In one embodiment, the delivery pipe 722 is arranged on the inner wall of the cabinet 1 near the cabinet door 2, and the nozzle 723 is directed towards the direction in which electrical components are installed inside the cabinet 1. This design keeps the delivery pipe 722 far away from the location where electrical components are installed in the cabinet 1, reducing interference with the installation process of electrical components; when the nozzle 723 sprays the extinguishing agent, it can be sprayed directly onto the electrical components, improving the efficiency of fire extinguishing.

[0039] In one embodiment, the extinguishing agent stored in the fire extinguishing tank 71 is perfluorohexanone.

[0040] Perfluorohexanone, as a highly efficient and environmentally friendly fire extinguishing agent, is particularly suitable for fire protection of sensitive electronic equipment such as electrical cabinets due to its characteristics of rapid fire extinguishing, non-conductivity, no residue, safety to humans, and environmental friendliness. It can not only effectively protect the equipment safety, but also reduce the cleanup work after a fire and ensure rapid restoration of operation.

[0041] In one embodiment, the smoke alarm 4 and the normally closed solenoid valve 721 are electrically connected to an independent power supply 632.

[0042] This design uses an independent power supply 632 to power the smoke alarm 4, normally closed solenoid valve 721, and suction cup electromagnet 631, instead of directly connecting it to the electrical cabinet's power supply line. This ensures that the system can continue to operate normally without interference even when the electrical cabinet's circuit malfunctions. Furthermore, by adding a simple control circuit to the independent power supply 632, it can be triggered when the smoke alarm 4 sounds, activating the independent power supply 632 to connect the suction cup electromagnet 631 and normally closed solenoid valve 721, thereby sealing the vent 3 and spraying the extinguishing agent.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0044] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. An electrical fireproof cabinet, comprising a cabinet body (1), cabinet doors (2) hinged to the cabinet body (1), and ventilation holes (3) on both sides of the cabinet body (1), characterized in that, Also includes: A smoke and light alarm (4) is connected to the inner cavity of the cabinet (1) and fixedly installed on its top; The sealing assembly (6) is fixedly installed on the inner wall of the cabinet (1) at the location corresponding to the vent (3). It includes a pressure-bearing sealing seat (61) fixedly installed on the inner wall of the cabinet (1), a sealing plate (62) which is slidably installed at the opening end of the pressure-bearing sealing seat (61) with an adjustable distance from the pressure-bearing sealing seat (61), and a driving member (63) fixedly installed on the pressure-bearing sealing seat (61) for driving the sealing plate (62) to abut against the opening end of the pressure-bearing sealing seat (61). Fire extinguishing assembly (7) is provided in the inner cavity of the cabinet (1) and includes a fire extinguishing tank (71) and a spraying assembly (72) communicating with the fire extinguishing tank (71).

2. An electrical fireproof cabinet as described in claim 1, characterized in that, The pressure-bearing sealing seat (61) includes a frame (611), an annular mounting skirt (612) fixedly disposed at one end of the frame (611), a sealing groove (613) opened at the other end of the frame (611), and a sealing ring (614) fitted in the sealing groove (613). The frame (611) covers the inner side wall of the cabinet (1) around the area corresponding to the vent hole (3).

3. An electrical fireproof cabinet as described in claim 2, characterized in that, Multiple guide posts (5) are vertically arranged on the mounting skirt (612), and a stop block (8) is fixedly arranged at the end of the guide post (5). The sealing plate (62) is simultaneously inserted through the multiple guide posts (5).

4. An electrical fireproof cabinet as described in claim 3, characterized in that, The block (8) is made of permanent magnet material, and the sealing plate (62) is an iron plate.

5. An electrical fireproof cabinet as described in claim 4, characterized in that, The drive unit (63) includes a plurality of suction cup electromagnets (631) evenly arranged around the mounting skirt (612) and an independent power supply (632) disposed on the cabinet (1) and electrically connected to the suction cup electromagnets (631).

6. An electrical fireproof cabinet as described in claim 5, characterized in that, The spraying assembly (72) includes a normally closed solenoid valve (721) connected to the outlet of the fire extinguisher (71), a delivery pipe (722) fixedly installed in the inner cavity of the cabinet (1) and connected to the normally closed solenoid valve (721), and a plurality of nozzles (723) connected to the delivery pipe (722).

7. An electrical fireproof cabinet as described in claim 6, characterized in that, The delivery pipe (722) is arranged on the inner wall of the cabinet (1) near the cabinet door (2), and the nozzle (723) is oriented toward the direction in which electrical components are installed inside the cabinet (1).

8. An electrical fireproof cabinet as described in claim 7, characterized in that, The extinguishing agent stored in the fire extinguishing tank (71) is perfluorohexanone.

9. An electrical fireproof cabinet as described in claim 8, characterized in that, The smoke and light alarm (4) and the normally closed solenoid valve (721) are electrically connected to an independent power supply (632).

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