A high performance low voltage switch cabinet

Abstract

The present invention discloses a high-performance low-voltage switch cabinet, and relates to the technical field of low-voltage switch cabinets. The cabinet comprises a cabinet, a top cover is provided on the top of the cabinet, a switch plate is rotatably connected to the top cover, a busbar installation cavity is formed inside the cabinet, the switch plate is located directly above the busbar installation cavity, a flip device capable of opening and closing the switch plate is installed on one side of the top of the cabinet, a fire extinguishing device is provided on the top of the cabinet, a plurality of temperature sensors are installed on the inner wall of the cabinet, and a controller is installed on one side of the cabinet, the fire extinguishing device, the flip device and the temperature sensor are all electrically connected to the controller, and the fire extinguishing device comprises a support frame fixed on the top of the cabinet, and a vertically placed carbon dioxide storage tank is fixedly connected to the top of the support frame. The present invention can further extinguish the fire in a timely manner, protect the low-voltage switch cabinet to the greatest extent, improve the safety factor of the switch cabinet, and realize automatic fire extinguishing operation.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage switch cabinets, and in particular to a high-performance low-voltage switch cabinet. Background Art

[0002] As a power conversion device for distribution machines, low-voltage switchgear is suitable for many industries such as power generation, metallurgy, and textiles. The external line of the switchgear first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs, such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage room switchgears, with high-voltage busbars, such as power plants, etc. Some are also equipped with low-frequency load shedding to protect the main equipment. The existing low-voltage intelligent switchgear can meet production use. However, its flame retardancy is not strong. Once the electrical components in the switchgear are short-circuited, it is easy to break through the electrical energy and cause the electrical components in the switchgear to catch fire, causing a fire.

[0003] Currently, the traditional low-voltage switch cabinet lacks effective fire extinguishing devices, resulting in a low safety factor. When a fire occurs, it is difficult to automatically extinguish the fire. Therefore, the present invention proposes a new solution. Summary of the invention

[0004] The object of the present invention is to provide a high-performance low-voltage switch cabinet to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-performance low-voltage switch cabinet, comprising a cabinet body, a top cover is provided on the top of the cabinet body, a switch plate is rotatably connected to the top cover, a busbar installation cavity is formed inside the cabinet body, the switch plate is located directly above the busbar installation cavity, a flip device capable of opening and closing the switch plate is installed on one side of the top of the cabinet body, a fire extinguishing device is provided on the top of the cabinet body, a plurality of temperature sensors are installed on the inner wall of the cabinet body, and a controller is installed on one side of the cabinet body, the fire extinguishing device, the flip device and the temperature sensor are all electrically connected to the controller, the fire extinguishing device comprises a support frame fixed to the top of the cabinet body, a vertically placed carbon dioxide storage tank is fixedly connected to the top of the support frame, a valve core structure is connected to the bottom of the carbon dioxide storage tank, the carbon dioxide storage tank is located directly above the switch plate, and a ejection structure capable of opening and closing the valve core structure is provided on one side of the top of the cabinet body.

[0006] As the preferred technical solution in the present application, the flipping device includes a fixed seat symmetrically fixed on one side of the bottom of the switch plate, a vertical plate is vertically welded on one side of the top of the cabinet, a flipping seat is fixed on the vertical plate, a first horizontal bar and a second horizontal bar are rotatably connected to the flipping seat in sequence, the first horizontal bar is fixedly connected to an inclined top plate, the second horizontal bar is fixedly connected to an inclined bottom plate, one end of the top plate and one end of the bottom plate are both fixedly connected to the fixed seat, the top ends of the first horizontal bar and the second horizontal bar are rotatably connected through a transmission belt, a positioning motor is provided on the front outer wall of the cabinet, the output end of the positioning motor is fixed to the top end of the first horizontal bar, and the positioning motor is electrically connected to the controller.

[0007] As the preferred technical solution in the present application, the valve core structure includes an air core outer shell, which is an integrally formed structure with the carbon dioxide storage tank. An inner shell is provided inside the air core outer shell, and both ends of the inner shell are open. A core rod is vertically arranged in the inner shell, and one end of the core rod is fixedly connected to a sealing head, the diameter of the sealing head is the same as the diameter of the top of the inner shell, and the other end of the core rod is fixedly connected to a top block. A fixed spring is welded on the inner wall of the inner shell, and one end of the fixed spring is fixed to the sealing head.

[0008] As the preferred technical solution in the present application, the ejection structure includes a vertical plate fixed vertically on the top of the cabinet, an electric slide rail is vertically installed on the vertical plate, an electric slider is slidably connected to the electric slide rail, an electric push rod is horizontally installed on the electric slider, an ejection rod is vertically welded to one end of the electric push rod, and the electric slide rail and the electric push rod are both electrically connected to the controller.

[0009] As a preferred technical solution in the present application, one end of each of the first horizontal bar and the second horizontal bar is fixedly connected to a transmission disk, and the transmission disks are rotationally connected via a transmission belt.

[0010] As a preferred technical solution in the present application, a groove matching the fixing seat is provided on a side of the flip seat close to the fixing seat.

[0011] As a preferred technical solution in the present application, two fixing clamps are symmetrically arranged at the bottom of the carbon dioxide storage tank, the fixing clamps are fixed to each other by bolts, and one fixing clamp is welded to the support frame.

[0012] As a preferred technical solution in the present application, a plurality of raised strips are equidistantly provided on the surface of the transmission disc, and a plurality of grooves matching the raised strips are equidistantly provided on the inner wall of the transmission belt.

[0013] As a preferred technical solution in the present application, a plurality of small drawers and a large drawer are slidably connected to the front of the cabinet, and handles are installed on the small drawers and the large drawers.

[0014] As a preferred technical solution in the present application, the cabinet body includes a cabinet frame, and a vertical busbar installation cavity is installed in the cabinet frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This high-performance low-voltage switch cabinet detects the current temperature value in the cabinet in real time through the temperature sensor. When the temperature value reaches the preset temperature, the controller automatically controls the flip device, the flip device opens the switch plate, and then the controller automatically controls the electric slide rail to move to the predetermined position, and then the electric push rod extends to drive the ejector rod to move upward, the ejector rod pushes the valve core structure, and carbon dioxide gas is sprayed from the carbon dioxide storage tank into the cabinet. The whole process is fast, and the fire can be extinguished in time, which protects the low-voltage switch cabinet to the greatest extent, improves the safety factor of the switch cabinet, and can realize automatic fire extinguishing operation.

[0017] In addition, the use of this device can improve the timely response to fire, increase the service life of the switch cabinet and reduce the losses when a fire occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 It is a first three-dimensional structural schematic diagram of the turning device and the fire extinguishing device of the present invention;

[0021] Figure 4 It is a second three-dimensional structural schematic diagram of the turning device and the fire extinguishing device of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the turning device of the present invention;

[0023] Figure 6 A schematic diagram of the internal structure of the valve core structure of the present invention.

[0024] In the figure: 1. cabinet; 101. top cover; 102. switch plate; 103. small drawer; 104. handle; 105. large drawer; 106. cabinet frame; 107. busbar installation cavity; 2. turning device; 201. fixing seat; 202. turning seat; 203. first horizontal bar; 204. second horizontal bar; 205. top plate; 206. bottom plate; 207. fixing plate; 208. transmission belt; 209. fixing plate; 210. Positioning motor; 3. Fire extinguishing device; 301. Support frame; 302. Fixing clamp; 303. Carbon dioxide storage tank; 304. Vertical plate; 305. Electric slide rail; 306. Electric slider; 307. Electric push rod; 308. Ejector rod; 4. Vertical plate; 5. Valve core structure; 501. Air core shell; 502. Inner shell; 503. Core rod; 504. Sealing head; 505. Ejector block; 506. Fixing spring; 507. Round hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0026] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0028] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0029] like Figure 1-6 As shown, the present invention provides a technical solution: a high-performance low-voltage switch cabinet, including a cabinet body 1, the cabinet body 1 includes a cabinet frame 106, a vertical busbar installation cavity is installed in the cabinet frame 106, a top cover 101 is provided on the top of the cabinet body 1, and a switch board 102 is rotatably connected to the top cover 101. It should be noted that the switch board 102, the vertical busbar installation cavity and the busbar installation cavity 107 are all prior arts. A busbar installation cavity 107 is formed inside the cabinet 1, and the switch board 102 is located directly above the busbar installation cavity 107. A flip device 2 capable of opening and closing the switch board 102 is installed on one side of the top of the cabinet 1. A fire extinguishing device 3 is arranged on the top of the cabinet 1. Multiple temperature sensors are installed on the inner wall of the cabinet 1, and a controller is installed on one side of the cabinet 1. The fire extinguishing device 3, the flip device 2 and the temperature sensor are all electrically connected to the controller. The fire extinguishing device 3 includes a support frame 301 fixed to the top of the cabinet 1, and a vertically placed carbon dioxide storage tank 303 is fixedly connected to the top of the support frame 301. A valve core structure 5 is connected to the bottom of the carbon dioxide storage tank 303. The carbon dioxide storage tank 303 is located directly above the switch board 102, and a ejection structure capable of opening and closing the valve core structure 5 is arranged on one side of the top of the cabinet 1.

[0030] As a specific embodiment, the flipping device 2 includes a fixed seat 201 symmetrically fixed on one side of the bottom of the switch plate 102, a vertical plate 4 is vertically welded on one side of the top of the cabinet 1, a flipping seat 202 is fixed on the vertical plate 4, and the flipping seat 202 is rotatably connected with a first horizontal bar 203 and a second horizontal bar 204 in sequence, the first horizontal bar 203 is fixedly connected with an inclined top plate 205, and the second horizontal bar 204 is fixedly connected with an inclined bottom plate 206, one end of the top plate 205 and one end of the bottom plate 206 are both fixedly connected to the fixed seat 201, the top ends of the first horizontal bar 203 and the second horizontal bar 204 are rotatably connected through a transmission belt 208, a positioning motor 210 is provided on the front outer wall of the cabinet 1, the output end of the positioning motor 210 is fixed to the top end of the first horizontal bar 203, and the positioning motor 210 is electrically connected to the controller. It should be noted that a fixing plate 209 is symmetrically welded on the top of the fixing seat 201, and the fixing plate 209 is fixed to the switch plate 102 by bolts, while a fixing plate 207 is welded on one side of the flip seat 202, and the fixing plate 207 is fixed to the vertical plate 4 by bolts.

[0031] It should be noted that when a fire occurs, after the controller receives the signal from the temperature sensor, the controller starts the positioning motor 210 to rotate. Since the first horizontal bar 203 and the second horizontal bar 204 are fixedly connected to a transmission disk at one end, and the transmission disks are rotatably connected by a transmission belt 208, the rotation directions of the first horizontal bar 203 and the second horizontal bar 204 are consistent. In this way, as the first horizontal bar 203 rotates, the second horizontal bar 204 will also rotate at the same time. The top plate 205 is fixedly connected to the first horizontal bar 203, and the bottom plate 206 is fixedly connected to the second horizontal bar 204. At the same time, the other ends of the first horizontal bar 203 and the second horizontal bar 204 are fixedly connected to the fixing seat 201, and the top plate 205 and the bottom plate 206 also have a certain elasticity, so that the switch plate 102 can be opened.

[0032] As a specific embodiment, the valve core structure 5 includes an air core shell 501, the air core shell 501 and the carbon dioxide storage tank 303 are an integrally formed structure, an inner shell 502 is provided inside the air core shell 501, the two ends of the inner shell 502 are open, a core rod 503 is vertically arranged in the inner shell 502, one end of the core rod 503 is fixedly connected to a sealing head 504, the diameter of the sealing head 504 is the same as the diameter of the top of the inner shell 502, the other end of the core rod 503 is fixedly connected to a top block 505, a fixed spring 506 is welded on the inner wall of the inner shell 502, and one end of the fixed spring 506 is fixed on the sealing head 504. It should be noted that a circular hole 507 is opened at the bottom of the inner shell 502, and the diameter of the circular hole 507 is larger than the diameter of the core rod 503, so that the gas can be discharged from the circular hole 507. In addition, the sealing head 504 is a rubber head, which has a certain elasticity, so that the sealing performance of the sealing head 504 can be ensured under normal circumstances.

[0033] It should be noted that when the ejector rod 308 pushes the ejector block 505 upward, the ejector block 505 will move upward, thereby driving the sealing head 504 to move upward. Since the sealing head 504 has the same diameter as the top of the inner shell 502, under normal circumstances, the sealing head 504 blocks the cavity at the top of the inner shell 502, and it is difficult for carbon dioxide gas to enter the inner shell 502. As the sealing head 504 moves out of the inner shell 502, the carbon dioxide gas will enter the inner shell 502 and then be discharged from the circular hole 507 at the bottom of the inner shell 502.

[0034] As a specific embodiment, the ejection structure includes a vertical plate 304 vertically fixed on the top of the cabinet 1, an electric slide rail 305 is vertically installed on the vertical plate 304, an electric slider 306 is slidably connected to the electric slide rail 305, an electric push rod 307 is horizontally installed on the electric slider 306, an ejection rod 308 is vertically welded to one end of the electric push rod 307, and the electric slide rail 305 and the electric push rod 307 are both electrically connected to the controller.

[0035] As a specific embodiment, one end of the first horizontal bar 203 and the second horizontal bar 204 are fixedly connected to a transmission disk, and the transmission disks are rotatably connected through a transmission belt 208. A plurality of raised strips are equidistantly provided on the surface of the transmission disk, and a plurality of grooves matching the raised strips are equidistantly provided on the inner wall of the transmission belt 208. This can increase the friction between the transmission disk and the transmission belt 208, make the transmission belt 208 less likely to slip, and improve the transmission efficiency.

[0036] As a specific embodiment, a groove matching with the fixing seat 201 is formed on a side of the flip seat 202 close to the fixing seat 201 .

[0037] As a specific embodiment, two fixing clamps 302 are symmetrically arranged at the bottom of the carbon dioxide storage tank 303 . The fixing clamps 302 are fixed to each other by bolts, and one fixing clamp 302 is welded to the support frame 301 .

[0038] As a specific embodiment, a plurality of small drawers 103 and a large drawer 105 are slidably connected to the front of the cabinet 1, and a handle 104 is installed on each of the small drawers 103 and the large drawer 105. It should be noted that the volume of the small drawer 103 is half of that of the large drawer 105.

[0039] In particular, when a fire occurs inside the cabinet 1, the temperature inside the cabinet 1 will rise sharply. When the temperature value measured by the temperature sensor reaches a preset value, the controller will automatically control the flip device 2 to work, and the flip device 2 opens the switch plate 102. Then the controller controls the electric push rod 307 to extend. After the electric push rod 307 extends to the set length, the electric push rod 307 stops working. At this time, the ejector rod 308 is located directly below the valve core structure 5. Then the electric slide rail 305 opens and drives the ejector rod 308 to move upward. The ejector rod 308 pushes the ejector block 505, and then the carbon dioxide gas is ejected from the carbon dioxide storage tank 303 into the cabinet 1. The fire extinguishing operation process of this device is fast, and the fire can be extinguished in time, which protects the low-voltage switch cabinet to the greatest extent, improves the safety factor of the switch cabinet, and can realize automatic fire extinguishing operation, which can improve the timely response to fire, improve the service life of the switch cabinet and reduce the loss when a fire occurs.

[0040] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-performance low-voltage switch cabinet, comprising a cabinet body (1), a top cover (101) being provided on the top of the cabinet body (1), a switch board (102) being rotatably connected to the top cover (101), a busbar installation cavity (107) being formed inside the cabinet body (1), the switch board (102) being located directly above the busbar installation cavity (107), and characterized in that: A flip device (2) capable of opening and closing the switch plate (102) is installed on one side of the top of the cabinet (1); a fire extinguishing device (3) is arranged on the top of the cabinet (1); a plurality of temperature sensors are installed on the inner wall of the cabinet (1); and a controller is installed on one side of the cabinet (1); the fire extinguishing device (3), the flip device (2) and the temperature sensor are all electrically connected to the controller; the fire extinguishing device (3) comprises a support frame (301) fixed to the top of the cabinet (1); a vertically placed carbon dioxide storage tank (303) is fixedly connected to the top of the support frame (301); a valve core structure (5) is connected to the bottom of the carbon dioxide storage tank (303); the carbon dioxide storage tank (303) is located directly above the switch plate (102); and a ejection structure capable of opening and closing the valve core structure (5) is arranged on one side of the top of the cabinet (1);The flip device (2) comprises a fixed seat (201) symmetrically fixed to one side of the bottom of the switch plate (102); a vertical plate (4) is vertically welded to one side of the top of the cabinet (1); a flip seat (202) is fixed to the vertical plate (4); a first horizontal bar (203) and a second horizontal bar (204) are rotatably connected to the flip seat (202); an inclined top plate (205) is fixedly connected to the first horizontal bar (203); a inclined bottom plate (206) is fixedly connected to the second horizontal bar (204); one end of the top plate (205) and one end of the bottom plate (206) are both fixedly connected to the fixed seat ( 201), the top ends of the first horizontal bar (203) and the second horizontal bar (204) are rotatably connected via a transmission belt (208), a positioning motor (210) is provided on the front outer wall of the cabinet (1), the output end of the positioning motor (210) is fixed to the top end of the first horizontal bar (203), the positioning motor (210) is electrically connected to the controller, the valve core structure (5) comprises an air core shell (501), the air core shell (501) and the carbon dioxide storage tank (303) are an integrally formed structure, an inner shell (502) is provided inside the air core shell (501), and both ends of the inner shell (502) are open. A core rod (503) is vertically arranged in the inner shell (502), one end of the core rod (503) is fixedly connected to a sealing head (504), the diameter of the sealing head (504) is the same as the diameter of the top of the inner shell (502), the other end of the core rod (503) is fixedly connected to a top block (505), a fixing spring (506) is welded on the inner wall of the inner shell (502), one end of the fixing spring (506) is fixed to the sealing head (504), the ejection structure comprises a vertical plate (304) vertically fixed to the top of the cabinet (1), an electric slide rail (305) is vertically installed on the vertical plate (304), and the electric slide The rail (305) is slidably connected to an electric slider (306), an electric push rod (307) is horizontally mounted on the electric slider (306), an ejector rod (308) is vertically welded to one end of the electric push rod (307), the electric slide rail (305) and the electric push rod (307) are both electrically connected to a controller, one end of the first horizontal bar (203) and the second horizontal bar (204) are both fixedly connected to a transmission disk, the transmission disks are rotationally connected via a transmission belt (208), and a groove matching the fixed seat (201) is provided on one side of the flip seat (202) close to the fixed seat (201). ; 2. A high-performance low-voltage switch cabinet according to claim 1, characterized in that: Two fixing clamps (302) are symmetrically arranged at the bottom of the carbon dioxide storage tank (303), and the fixing clamps (302) are fixed to each other by bolts, and one fixing clamp (302) is welded to the support frame (301).

3. A high-performance low-voltage switch cabinet according to claim 1, characterized in that: The surface of the transmission disc is provided with a plurality of raised strips at equal intervals, and the inner wall of the transmission belt (208) is provided with a plurality of grooves matching the raised strips at equal intervals.

4. A high-performance low-voltage switch cabinet according to claim 1, characterized in that: The cabinet body (1) has a plurality of small drawers (103) and a large drawer (105) slidably connected to the front side thereof, and handles (104) are installed on the small drawers (103) and the large drawer (105).

5. A high-performance low-voltage switch cabinet according to claim 1, characterized in that: The cabinet body (1) comprises a cabinet frame (106), and a vertical busbar installation cavity is installed in the cabinet frame (106).

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