Electrical cabinet with overheating protection structure

Abstract

The invention relates to the technical field of electrical cabinets, and discloses an electrical cabinet with an overheating protection structure. Comprising a rotary gas driving mechanism, a centrifugal shaking type filtering mechanism, a fixed rotating disc capable of rotating along with a first horizontal rotating shaft, and a movable hollow ring, the cylindrical filter screen can filter flowing gas and rotate along with the fixed rotating disc and the movable hollow ring; and the first fan-shaped permanent magnet and the second fan-shaped permanent magnet can enable the cylindrical filter screen to shake in the rotating process. The electrical cabinet with the overheat protection structure can effectively filter dust and other substances from the external environment, has a ventilation and cooling effect, reduces the damage degree of dust and other harmful substances to electrical elements, and further has the advantages of being simple in structure and convenient to use. According to the device, dust attached to the outer surface of the filter screen can be effectively cleaned by using centrifugal force, so that the phenomenon that the ventilation rate is reduced due to blockage is prevented, and the ventilation and cooling effects of the electrical cabinet are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical cabinets, and in particular to an electrical cabinet with an overheating protection structure. Background Art

[0002] Electrical cabinets are primarily used in the chemical industry, environmental protection industry, power systems, metallurgical systems, industrial and nuclear power industries, fire safety monitoring, and transportation. These steel cabinets are used to protect components and circuits. Because they contain numerous electrical components, they generate significant heat over extended periods of use. Therefore, they are equipped with cooling fans and vents on both sides to dissipate heat.

[0003] For example, Chinese patent publication number "CN113948990B" discloses "an electrical cabinet with an overheat protection structure." Its main structure includes an electrical cabinet, with multiple sets of first heat dissipation openings extending through both sides of the cabinet, and a blocking member rotating inside the first heat dissipation opening. Opposite sides of the cabinet are provided with drive assemblies, and the drive assemblies are movably connected to the blocking member via a linkage. Opposite sides of the cabinet are provided with protective frames, and multiple sets of mounting members are provided between the protective frames in an upper and lower position. Multiple sets of second heat dissipation openings extend through both sides of the cabinet below the first heat dissipation openings, and blocks are provided at the second heat dissipation openings. This electrical cabinet with an overheat protection structure can promptly and effectively cool and dissipate heat inside the cabinet, facilitating the restoration of normal use of the cabinet and preventing damage to cabinet components caused by high temperatures inside the cabinet during use, or even fire and other safety accidents.

[0004] However, during the actual heat dissipation process of the above-mentioned electrical cabinet with overheat protection structure, after the fan blades are started, external gas will enter the interior of the electrical cabinet, forming a gas circulation. In the external environment, there will be a large amount of dust and other substances that are not conducive to the operation of electrical components. It is not possible to effectively remove dust and other substances. As time goes by, dust will accumulate inside the electrical cabinet, thereby affecting the service life of electrical components. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides an electrical cabinet with an overheating protection structure, which can effectively filter dust and other substances from the external environment, and at the same time has a ventilation and cooling effect, thereby reducing the damage to electrical components caused by harmful substances such as dust. In addition, the device can use centrifugal force to effectively clean dust attached to the outer surface of the filter, thereby preventing the occurrence of a decrease in ventilation rate due to blockage, so as to ensure the ventilation and cooling effect of the electrical cabinet, and solve the above-mentioned technical problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electrical cabinet with an overheating protection structure, comprising an electrical cabinet, a No. 1 ventilation duct and a No. 2 ventilation duct arranged on opposite sides of the electrical cabinet, and a rotating gas drive mechanism, which is internally provided with a drive motor fixedly installed on one side of the electrical cabinet, a No. 1 horizontal rotating shaft located inside the No. 1 ventilation duct and capable of rotating with the rotor of the drive motor, and a fan blade that can rotate with the No. 1 horizontal rotating shaft and discharge gas outward; and a centrifugal shaking filter mechanism, which is internally provided with a fixed rotating disk and a movable hollow ring that can rotate with the No. 1 horizontal rotating shaft, a cylindrical filter screen that can filter the flowing gas and rotates with the fixed rotating disk and the movable hollow ring, and a No. 1 fan-shaped permanent magnet and a No. 2 fan-shaped permanent magnet that can cause the cylindrical filter screen to shake during rotation.

[0007] Preferably, the rotary gas drive mechanism includes a No. 1 fixed bracket fixedly mounted on the periphery of the drive motor, one end of the No. 1 fixed bracket fixedly mounted on the outside of the electrical cabinet through a fixed connecting plate, the rotor end of the drive motor is installed with a No. 1 horizontal rotating shaft located inside the No. 1 ventilation duct through a No. 1 coupling, the shaft of the No. 1 horizontal rotating shaft is installed inside the No. 1 ventilation duct through a bearing and a No. 2 fixed bracket, and a fan blade that can rotate with the No. 1 horizontal rotating shaft is fixedly mounted on the shaft, and the No. 1 horizontal rotating shaft is provided with a No. 1 rotating insertion head with an integral structure therewith at one end located inside the electrical cabinet, and the end of the No. 1 rotating insertion head is provided with a No. 1 chamfered structure for facilitating its guidance into the insertion hole.

[0008] Preferably, after the driving motor end is started, the rotation of the fan blades causes the gas inside the electrical cabinet to flow to the outside through the No. 1 ventilation pipe.

[0009] Preferably, the centrifugal shaking filtering mechanism includes a No. 2 horizontal rotating shaft installed inside the No. 2 ventilation pipe through a No. 3 fixed bracket and a bearing, and the No. 2 horizontal rotating shaft is provided with a No. 2 rotating insertion head with an integral structure therewith at one end located inside the electrical cabinet, and the end of the No. 2 rotating insertion head is provided with a No. 2 chamfered structure for guiding its insertion into the hole, and the No. 2 horizontal rotating shaft is fixedly installed with a fixed rotating disk at one end located outside the electrical cabinet, and the movable hollow ring is placed on the outer tube body of the No. 2 ventilation pipe and can move along the outer tube body of the No. 2 ventilation pipe, and the fixed rotating disk and the movable hollow ring are fixedly embedded in a bendable The cylindrical filter screen, the fixed rotating disk is fixedly installed with a plurality of rod bodies passing through the corresponding parts of the movable hollow ring and capable of sliding along the movable hollow ring on the end face near its edge. One end of the No. 1 horizontal limit rod is provided with a No. 1 limit ring structure capable of preventing the movable hollow ring from detaching. The No. 1 horizontal limit rod is provided with a No. 1 coil spring on the outer periphery of the rod body between the fixed rotating disk and the movable hollow ring. The three No. 2 fan-shaped permanent magnets are fixedly installed in an annular array inside the electrical cabinet outside the No. 2 ventilation duct, and the movable hollow ring is fixedly embedded with three No. 1 fan-shaped permanent magnets at the corresponding ends of the No. 2 fan-shaped permanent magnets.

[0010] Preferably, the horizontal length of the No. 1 horizontal limit rod and the initial length of the No. 1 coil spring are sufficient to enable the movable hollow ring to reciprocate along the outer tube body of the No. 2 ventilation pipe.

[0011] Preferably, the first sector-shaped permanent magnet and the second sector-shaped permanent magnet have the same magnetic poles on opposite end faces.

[0012] Preferably, it also includes a separate combined linkage mechanism, which is internally provided with a horizontal linkage hollow shaft that can be placed on the outer periphery of the No. 1 rotating insertion head and the No. 2 rotating insertion head and play a linkage role, a No. 2 horizontal limit rod that can drive the horizontal linkage hollow shaft to move in the horizontal direction, and a telescopic motor that can drive the No. 2 horizontal limit rod to move horizontally.

[0013] Preferably, the separate combined linkage mechanism includes a horizontal insertion hole arranged at the center of the horizontal linkage hollow shaft and with both ends in an open state, the middle part of the shaft body of the horizontal linkage hollow shaft is installed inside the plate body of a longitudinal connecting plate through a bearing, and a sliding hole is provided in the bottom plate body of the longitudinal connecting plate, one end of the telescopic motor is fixedly installed inside the electrical cabinet, and the end of the telescopic movable rod of the telescopic motor is fixedly installed with a No. 2 horizontal limit rod passing through the sliding hole through a No. 2 coupling, and the No. 2 horizontal limit rod is respectively provided with a No. 2 limit ring structure on the outer surface of the rod body located on both sides of the sliding hole, and the No. 2 horizontal limit rod is provided with a No. 2 coil spring in a compressed state on the rod body located between one of the No. 2 limit ring structures and the longitudinal connecting plate.

[0014] Preferably, the structural shape of the cross section of the horizontal insertion hole, the structural shape of the cross section of the No. 1 rotating insertion head and the structural shape of the cross section of the No. 2 rotating insertion head are consistent and are all polygonal structures, and the structural dimensions of the cross section of the horizontal insertion hole, the structural dimensions of the cross section of the No. 1 rotating insertion head and the structural dimensions of the cross section of the No. 2 rotating insertion head match.

[0015] Preferably, when the No. 2 horizontal limit rod moves toward the No. 2 ventilation pipe, the other No. 2 limit ring structure interferes with the longitudinal connecting plate and drives the horizontal linkage hollow shaft to move horizontally. When the No. 2 horizontal limit rod moves toward the No. 1 ventilation pipe, the longitudinal connecting plate compresses the No. 2 coil spring and drives the horizontal linkage hollow shaft to move horizontally.

[0016] Compared with the prior art, the present invention provides an electrical cabinet with an overheat protection structure, which has the following beneficial effects: It can effectively filter dust and other substances from the external environment, and at the same time has ventilation and cooling effects, thereby reducing the damage of dust and other harmful substances to electrical components. In addition, the device can use centrifugal force to effectively clean the dust attached to the outer surface of the filter, thereby preventing the occurrence of a decrease in ventilation rate due to blockage, so as to ensure the ventilation and cooling effect of the electrical cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 is a three-dimensional cross-sectional view of the present invention; Figure 3 is a perspective view of the rotary gas drive mechanism of the present invention; Figure 4 is a three-dimensional cross-sectional view of the rotary gas drive mechanism of the present invention; Figure 5 A three-dimensional diagram of the centrifugal shaking filter mechanism of the present invention; Figure 6 It is a three-dimensional cross-sectional view of the centrifugal shaking filter mechanism of the present invention; Figure 7 A three-dimensional diagram of the separate and combined linkage mechanism of the present invention; Figure 8 It is a three-dimensional cross-sectional view of the separated and combined linkage mechanism of the present invention.

[0018] Among them: 1. Electrical cabinet; 2. Ventilation pipe No. 1; 3. Ventilation pipe No. 2; 4. Rotary gas drive mechanism; 41. Fixed bracket No. 1; 42. Drive motor; 43. Rotor; 44. Coupling No. 1; 45. Fixed bracket No. 2; 46. Horizontal rotating shaft No. 1; 47. Fan blade; 48. Rotating insertion head No. 1; 49. Chamfered structure No. 1; 410. Fixed connecting plate; 5. Centrifugal shaking filter mechanism; 51. Fixed rotating disk; 52. Movable hollow ring; 53. Cylindrical filter screen; 54. Horizontal limit rod No. 1; 55. Spiral spring No. 1 Spring; 56. No. 1 limit ring structure; 57. No. 1 fan-shaped permanent magnet; 58. No. 2 fan-shaped permanent magnet; 59. No. 3 fixed bracket; 510. No. 2 horizontal rotating shaft; 511. No. 2 rotating insertion head; 512. No. 2 chamfer structure; 6. Separate combined linkage mechanism; 61. Telescopic motor; 62. Telescopic movable rod; 63. No. 2 coupling; 64. No. 2 horizontal limit rod; 65. No. 2 limit ring structure; 66. No. 2 coil spring; 67. Horizontal linkage hollow shaft; 68. Horizontal insertion hole; 69. Longitudinal connecting plate; 610. Sliding hole. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 and Figure 2 An electrical cabinet with an overheat protection structure includes an electrical cabinet 1, a No. 1 ventilation duct 2 and a No. 2 ventilation duct 3 arranged on opposite sides of the electrical cabinet 1, the electrical cabinet 1 is installed in a predetermined manner, and the driving motor 42 and the telescopic motor 61 are connected to a controller that can control the working time and working time of the two.

[0021] In order to realize the ventilation and cooling function of the electrical cabinet 1, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, it is necessary to set up a rotary gas drive mechanism 4, which is internally provided with a drive motor 42 fixedly installed on one side of the electrical cabinet 1, a horizontal rotating shaft 46 located inside the No. 1 ventilation pipe 2 and capable of rotating with the rotor 43 of the drive motor 42, and a fan blade 47 that can rotate with the No. 1 horizontal rotating shaft 46 and discharge the gas outward. When the drive motor 42 is started by the controller, the rotor 43 will drive the No. 1 horizontal rotating shaft 46 to rotate, and then drive the fan blade 47 to rotate. The rotation of the fan blade 47 will cause the high-temperature gas inside the electrical cabinet 1 to move outward through the No. 1 ventilation pipe 2, and the external gas will enter the interior of the electrical cabinet 1 through the No. 2 ventilation pipe 3, forming an internal and external air circulation flow, thereby ventilating and cooling the electrical cabinet 1.

[0022] For the specific structure of the rotary gas drive mechanism 4, please refer to Figure 3 and Figure 4 , including a No. 1 fixed bracket 41 fixedly mounted on the periphery of the drive motor 42, one end of the No. 1 fixed bracket 41 is fixedly mounted on the outside of the electrical cabinet 1 through a fixed connecting plate 410, and the end of the rotor 43 of the drive motor 42 is installed with a No. 1 horizontal rotating shaft 46 located inside the No. 1 ventilation pipe 2 through a No. 1 coupling 44, and the shaft body of the No. 1 horizontal rotating shaft 46 is installed inside the No. 1 ventilation pipe 2 through a bearing and a No. 2 fixed bracket 45, and a fan blade 47 that can rotate with it is fixedly mounted on the shaft body of the No. 1 horizontal rotating shaft 46, and the No. 1 horizontal rotating shaft 46 is provided with a No. 1 rotating insertion head 48 with an integrated structure at one end located inside the electrical cabinet 1, and the end of the No. 1 rotating insertion head 48 is provided with a No. 1 chamfered structure 49 for guiding it into the insertion hole. After the drive motor 42 end is started, the rotation of the fan blade 47 causes the gas inside the electrical cabinet 1 to flow to the outside through the No. 1 ventilation pipe 2.

[0023] In order to achieve the function of filtering the flowing gas and centrifugal dust removal, please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6, it is necessary to set up a centrifugal shaking filter mechanism 5, which is internally provided with a fixed rotating disk 51 and a movable hollow ring 52 that can rotate with the No. 1 horizontal rotating shaft 46, a cylindrical filter screen 53 that can filter the flowing gas and rotate with the fixed rotating disk 51 and the movable hollow ring 52, and a No. 1 fan-shaped permanent magnet 57 and a No. 2 fan-shaped permanent magnet 58 that can make the cylindrical filter screen 53 vibrate during the rotation process. The external gas will be filtered by the cylindrical filter screen 53 and enter the interior of the electrical cabinet 1 through the No. 2 ventilation pipe 3. The dust and solid harmful substances in the gas will be blocked on the periphery of the cylindrical filter screen 53, thereby achieving the filtration of the flowing gas. When the No. 2 horizontal rotating shaft 510 rotates, it will drive the fixed rotating disk 51 and the movable hollow ring 52 to filter the flowing gas. Rapid rotation. During the rotation process, the No. 1 fan-shaped permanent magnet 57 and the No. 2 fan-shaped permanent magnet 58 will be dislocated and overlapped at intervals. Under the joint action of the repulsive force and the No. 1 coil spring 55, the fixed rotating disk 51 and the movable hollow ring 52 will continuously approach and move away, thereby causing the cylindrical filter 53 to continuously shake. During the shaking process, the fixed rotating disk 51 and the movable hollow ring 52 will drive the cylindrical filter 53 to rotate at high speed, thereby causing the dust and solid harmful substances attached to the surface of the cylindrical filter 53 to generate centrifugal force. Under the centrifugal force and shaking phenomenon, the dust and solid harmful substances can be separated from the cylindrical filter 53 in time, thereby realizing the centrifugal and shaking dust removal functions of the dust and solid harmful substances.

[0024] For the specific structure of the centrifugal shaking filter mechanism 5, please refer to Figure 5 and Figure 6, including a No. 2 horizontal rotating shaft 510 installed inside the No. 2 ventilation pipe 3 through a No. 3 fixed bracket 59 and a bearing, the No. 2 horizontal rotating shaft 510 is provided with a No. 2 rotating insertion head 511 with an integral structure therewith at one end located inside the electrical cabinet 1, and the end of the No. 2 rotating insertion head 511 is provided with a No. 2 chamfered structure 512 for guiding its insertion into the hole, and the No. 2 horizontal rotating shaft 510 is fixedly installed with a fixed rotating disk 51 at one end located outside the electrical cabinet 1, and the movable hollow ring 52 is placed on the outer tube body of the No. 2 ventilation pipe 3 and can move along the outer tube body of the No. 2 ventilation pipe 3, the fixed rotating disk 51 and the movable hollow ring 52 are fixedly embedded with a bendable cylindrical filter screen 53 at the opposite end faces, and the fixed rotating disk 51 is fixedly installed with a plurality of rods on the end face near its edge, which pass through the corresponding parts of the movable hollow ring 52 and can move along The movable hollow ring 52 slides on a horizontal limit rod 54, and one end of the horizontal limit rod 54 is provided with a limit ring structure 56 that can prevent the movable hollow ring 52 from detaching. The horizontal limit rod 54 is provided with a coil spring 55 on the outer periphery of the rod body between the fixed rotating disk 51 and the movable hollow ring 52. The three second fan-shaped permanent magnets 58 are fixedly installed in the electrical cabinet 1 outside the No. 2 ventilation duct 3 in a circular array. The movable hollow ring 52 is fixedly embedded with three first fan-shaped permanent magnets 57 at the corresponding ends of the No. 2 fan-shaped permanent magnets 58. The horizontal length of the No. 1 horizontal limit rod 54 and the initial length of the No. 1 coil spring 55 are sufficient to make the movable hollow ring 52 reciprocate along the outer tube body of the No. 2 ventilation duct 3. The magnetic poles of the No. 1 fan-shaped permanent magnet 57 and the No. 2 fan-shaped permanent magnet 58 are the same on the opposite end faces.

[0025] In order to realize the linkage and separation between components, different working requirements are generated according to actual conditions, so as to improve the effective utilization of the kinetic energy of the drive motor 42. Figure 1 、 Figure 2 、 Figure 7 and Figure 8, it is necessary to set up a separate combined linkage mechanism 6, which is internally provided with a horizontal linkage hollow shaft 67 that can be placed on the outer periphery of the No. 1 rotating insertion head 48 and the No. 2 rotating insertion head 511 and play a linkage role, a No. 2 horizontal limit rod 64 that can drive the horizontal linkage hollow shaft 67 to move horizontally, and a telescopic motor 61 that can drive the No. 2 horizontal limit rod 64 to move horizontally. When dust removal is required, the telescopic motor 61 is controlled by the controller so that the telescopic movable rod 62 drives the horizontal linkage hollow shaft 67 to move toward the No. 1 rotating insertion head 48. Until the No. 1 rotating insertion head 48 is inserted into the horizontal insertion hole 68, at this time, the horizontal linkage hollow shaft 67 can rotate with the No. 1 horizontal rotating shaft 46, and drive the No. 2 horizontal rotating shaft 510 to rotate through the No. 2 rotating insertion head 511, thereby realizing the dust removal phenomenon of the attached dust. When the dust removal is completed, similarly, the horizontal linkage hollow shaft 67 can be separated from the No. 1 rotating insertion head 48, thereby realizing the linkage and separation phenomenon between the components, thereby generating different working requirements according to actual conditions, so as to improve the effective utilization rate of the kinetic energy of the drive motor 42.

[0026] For the specific structure of the separation and combination linkage mechanism 6, please refer to Figure 7 and Figure 8 , including a horizontal insertion hole 68 arranged at the center of the horizontal linkage hollow shaft 67 and with both ends being open, the middle part of the shaft body of the horizontal linkage hollow shaft 67 is installed inside the plate body of a longitudinal connecting plate 69 through a bearing, and a sliding hole 610 is provided in the bottom plate body of the longitudinal connecting plate 69, one end of the telescopic motor 61 is fixedly installed inside the electrical cabinet 1, and the end of the telescopic movable rod 62 of the telescopic motor 61 is fixedly installed with a No. 2 horizontal limiting rod 64 passing through the sliding hole 610 through the No. 2 coupling 63, and the No. 2 horizontal limiting rod 64 is respectively provided with a No. 2 limiting ring structure 65 on the outer surface of the rod body located on both sides of the sliding hole 610, and the No. 2 horizontal limiting rod 64 is placed on the rod body between one of the No. 2 limiting ring structures 65 and the longitudinal connecting plate 69. A pressure-sensitive member is placed on the rod body between the No. 2 limiting ring structures 65 and the longitudinal connecting plate 69. The No. 2 coil spring 66 is in a contracted state, and the structural shape of the cross section of the horizontal insertion hole 68, the structural shape of the cross section of the No. 1 rotating insertion head 48, and the structural shape of the cross section of the No. 2 rotating insertion head 511 are consistent, all of which are polygonal structures, and the structural dimensions of the cross section of the horizontal insertion hole 68, the structural dimensions of the cross section of the No. 1 rotating insertion head 48, and the structural dimensions of the cross section of the No. 2 rotating insertion head 511 match. When the No. 2 horizontal limit rod 64 moves toward the No. 2 ventilation pipe 3, the other No. 2 limit ring structure 65 conflicts with the longitudinal connecting plate 69 and drives the horizontal linkage hollow shaft 67 to move horizontally. When the No. 2 horizontal limit rod 64 moves toward the No. 1 ventilation pipe 2, the longitudinal connecting plate 69 compresses the No. 2 coil spring 66 and drives the horizontal linkage hollow shaft 67 to move horizontally.

[0027] When in use, the electrical cabinet 1 is installed in a predetermined manner, and the driving motor 42 and the telescopic motor 61 are connected to a controller that can control the working time and working time of both. The driving motor 42 is started by the controller, and the rotor 43 will drive the No. 1 horizontal rotating shaft 46 to rotate, and then drive the fan blades 47 to rotate. The rotation of the fan blades 47 will cause the high-temperature gas inside the electrical cabinet 1 to move outward through the No. 1 ventilation pipe 2, and the external gas will be filtered by the cylindrical filter 53 and enter the interior of the electrical cabinet 1 through the No. 2 ventilation pipe 3. The dust and solid harmful substances in the gas will be blocked on the periphery of the cylindrical filter 53. When dust removal is required, the telescopic motor 61 is controlled by the controller, so that the telescopic movable rod 62 drives the horizontal linkage hollow shaft 67 to move toward the No. 1 rotating insertion head 48 until the No. 1 rotating insertion head 48 is inserted into the horizontal insertion hole 68. At this time, the horizontal linkage hollow shaft 67 can rotate with the No. 1 horizontal rotating shaft 46 and The No. 2 horizontal rotating shaft 510 is driven to rotate by the No. 2 rotating insertion head 511. When the No. 2 horizontal rotating shaft 510 rotates, it will drive the fixed rotating disk 51 and the movable hollow ring 52 to rotate rapidly. During the rotation process, the No. 1 fan-shaped permanent magnet 57 and the No. 2 fan-shaped permanent magnet 58 will be dislocated and overlapped at intervals. Under the joint action of the repulsive force and the No. 1 coil spring 55, the fixed rotating disk 51 and the movable hollow ring 52 will continue to approach and move away, thereby causing the cylindrical filter screen 53 to continuously shake. During the shaking process, the fixed rotating disk 51 and the movable hollow ring 52 will drive the cylindrical filter screen 53 to rotate at high speed, thereby causing the dust and solid harmful substances attached to the surface of the cylindrical filter screen 53 to generate centrifugal force. Under the centrifugal force and shaking phenomenon, the dust and solid harmful substances can be separated from the cylindrical filter screen 53 in time. When the dust removal is completed, similarly, the horizontal linkage hollow shaft 67 can be separated from the No. 1 rotating insertion head 48.

[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 electrical cabinet with an overheat protection structure, comprising an electrical cabinet (1), a first ventilation pipe (2) and a second ventilation pipe (3) arranged on opposite sides of the electrical cabinet (1), characterized in that: Also includes, A rotary gas drive mechanism (4) is provided with a drive motor (42) fixedly mounted on one side of the electrical cabinet (1), a horizontal shaft (46) located inside the first ventilation pipe (2) and capable of rotating with the rotor (43) of the drive motor (42), and a fan blade (47) capable of rotating with the first horizontal shaft (46) and discharging gas outward; And a centrifugal shaking filter mechanism (5), which is provided with a fixed rotating disk (51) and a movable hollow ring (52) that can rotate with a first horizontal rotating shaft (46), a cylindrical filter screen (53) that can filter the flowing gas and rotate with the fixed rotating disk (51) and the movable hollow ring (52), and a first sector-shaped permanent magnet (57) and a second sector-shaped permanent magnet (58) that can cause the cylindrical filter screen (53) to shake during the rotation process.

2. The electrical cabinet with an overheat protection structure according to claim 1, characterized in that: The rotary gas drive mechanism (4) includes a No. 1 fixed bracket (41) fixedly mounted on the periphery of the drive motor (42), one end of the No. 1 fixed bracket (41) is fixedly mounted on the outside of the electrical cabinet (1) through a fixed connecting plate (410), the end of the rotor (43) of the drive motor (42) is mounted on a No. 1 horizontal rotating shaft (46) located inside the No. 1 ventilation pipe (2) through a No. 1 coupling (44), the shaft of the No. 1 horizontal rotating shaft (46) is mounted inside the No. 1 ventilation pipe (2) through a bearing and a No. 2 fixed bracket (45), a fan blade (47) capable of rotating with the No. 1 horizontal rotating shaft (46) is fixedly mounted on the shaft, and the No. 1 horizontal rotating shaft (46) is provided with a No. 1 rotating insertion head (48) integral with the No. 1 horizontal rotating shaft (46) at one end located inside the electrical cabinet (1), and the end of the No. 1 rotating insertion head (48) is provided with a No. 1 chamfered structure (49) for guiding the No. 1 rotating insertion head (48) into the hole.

3. The electrical cabinet with an overheat protection structure according to claim 2, characterized in that: After the driving motor (42) is started, the rotation of the fan blade (47) causes the gas inside the electrical cabinet (1) to flow to the outside through the No. 1 ventilation pipe (2).

4. The electrical cabinet with an overheat protection structure according to claim 3, characterized in that: The centrifugal shaking filter mechanism (5) includes a No. 2 horizontal rotating shaft (510) installed inside the No. 2 ventilation pipe (3) through a No. 3 fixed bracket (59) and a bearing, and the No. 2 horizontal rotating shaft (510) is provided with a No. 2 rotating insertion head (511) with an integral structure therewith at one end located inside the electrical cabinet (1), and the end of the No. 2 rotating insertion head (511) is provided with a No. 2 chamfered structure (512) for guiding it to be inserted into the hole, and the No. 2 horizontal rotating shaft (510) is fixedly installed with a fixed rotating disk (51) at one end located outside the electrical cabinet (1), and the movable hollow ring (52) is placed on the outer tube body of the No. 2 ventilation pipe (3) and can move along the outer tube body of the No. 2 ventilation pipe (3), and the fixed rotating disk (51) and the movable hollow ring (52) are fixedly embedded in a bendable cylindrical body at opposite end faces. The filter screen (53) is fixedly installed on the end face of the fixed rotating disk (51) near its edge with a plurality of rod bodies penetrating the corresponding positions of the movable hollow ring (52) and capable of sliding along the movable hollow ring (52), and one end of the No. 1 horizontal limiting rod (54) is provided with a No. 1 limiting ring structure (56) capable of preventing the movable hollow ring (52) from detaching, and the No. 1 horizontal limiting rod (54) is provided with a No. 1 coil spring (55) on the outer periphery of the rod body between the fixed rotating disk (51) and the movable hollow ring (52), and the three No. 2 fan-shaped permanent magnets (58) are fixedly installed in the electrical cabinet (1) outside the No. 2 ventilation pipe (3) in a ring array manner, and the movable hollow ring (52) is fixedly embedded with three No. 1 fan-shaped permanent magnets (57) at the ends corresponding to the No. 2 fan-shaped permanent magnets (58).

5. The electrical cabinet with an overheat protection structure according to claim 4, characterized in that: The horizontal length of the No. 1 horizontal limiting rod (54) and the initial length of the No. 1 coil spring (55) are sufficient to enable the movable hollow ring (52) to reciprocate along the outer tube body of the No. 2 ventilation tube (3).

6. The electrical cabinet with an overheat protection structure according to claim 5, characterized in that: The first sector-shaped permanent magnet (57) and the second sector-shaped permanent magnet (58) have the same magnetic poles on opposite end faces.

7. The electrical cabinet with an overheat protection structure according to claim 6, characterized in that: The invention also includes a separate combined linkage mechanism (6), which is internally provided with a horizontal linkage hollow shaft (67) that can be placed on the periphery of the No. 1 rotating insertion head (48) and the No. 2 rotating insertion head (511) and acts as a linkage, a No. 2 horizontal limiting rod (64) that can drive the horizontal linkage hollow shaft (67) to move in the horizontal direction, and a telescopic motor (61) that can drive the No. 2 horizontal limiting rod (64) to move horizontally.

8. The electrical cabinet with an overheat protection structure according to claim 7, characterized in that: The separated combined linkage mechanism (6) includes a horizontal insertion hole (68) arranged at the center of the horizontal linkage hollow shaft (67) and with both ends in an open state. The middle part of the shaft body of the horizontal linkage hollow shaft (67) is installed inside the plate body of a longitudinal connecting plate (69) through a bearing. A sliding hole (610) is provided in the bottom plate body of the longitudinal connecting plate (69). One end of the telescopic motor (61) is fixedly installed inside the electrical cabinet (1). The end of the telescopic movable rod (62) of the telescopic motor (61) is fixedly installed with a No. 2 horizontal limiting rod (64) passing through the sliding hole (610) through a No. 2 coupling (63). The No. 2 horizontal limiting rod (64) is respectively provided with a No. 2 limiting ring structure (65) on the outer surface of the rod body located on both sides of the sliding hole (610). The No. 2 horizontal limiting rod (64) is provided with a No. 2 coil spring (66) in a compressed state on the rod body located between one of the No. 2 limiting ring structures (65) and the longitudinal connecting plate (69).

9. The electrical cabinet with an overheat protection structure according to claim 8, characterized in that: The structural shape of the cross section of the horizontal insertion hole (68), the structural shape of the cross section of the No. 1 rotating insertion head (48), and the structural shape of the cross section of the No. 2 rotating insertion head (511) are consistent and all have polygonal structures, and the structural dimensions of the cross section of the horizontal insertion hole (68), the structural dimensions of the cross section of the No. 1 rotating insertion head (48), and the structural dimensions of the cross section of the No. 2 rotating insertion head (511) match.

10. The electrical cabinet with an overheat protection structure according to claim 9, characterized in that: When the second horizontal limit rod (64) moves toward the second ventilation pipe (3), the other second limit ring structure (65) contacts the longitudinal connecting plate (69) and drives the horizontal linkage hollow shaft (67) to move horizontally. When the second horizontal limit rod (64) moves toward the first ventilation pipe (2), the longitudinal connecting plate (69) compresses the second coil spring (66) and drives the horizontal linkage hollow shaft (67) to move horizontally.

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