A dustproof high and low voltage control cabinet for long-term use

Abstract

The invention relates to the technical field of high and low voltage control cabinets, and discloses a dustproof high and low voltage control cabinet for long-term use, comprising a high and low voltage control cabinet main body, the high and low voltage control cabinet main body is movably connected with a control cabinet door, the interior of the high and low voltage control cabinet main body is fixedly connected with electrical components, the bottom end of the interior of the high and low voltage control cabinet main body is fixedly connected with an active heat dissipation mechanism, the side of the high and low voltage control cabinet main body away from the active heat dissipation mechanism is movably connected with a dustproof heat dissipation mechanism, and the bottom end of the dustproof heat dissipation mechanism is movably connected with a dust suction mechanism; after the electromagnet of the invention is energized, a magnetic attraction force is generated between the electromagnet and the magnetic plate, thereby causing the magnetic plate to drive the rack plate to move downward, and when the rack plate moves downward, the rotating shaft rotates, thereby causing the shielding plate to rotate, and the shielding plate can dissipate heat after the rotation, and when the shielding plate is not rotated, the high and low voltage control cabinet main body is sealed to prevent dust from entering the high and low voltage control cabinet main body.

Description

Technical Field

[0001] The invention relates to the technical field of high and low voltage control cabinets, and more specifically to a dustproof high and low voltage control cabinet for long-term use. Background Art

[0002] High and low voltage control cabinet is a combined high and low voltage switch cabinet assembled with standard modules. High and low voltage control cabinet is suitable for AC 50-60HZ rated working voltage 660V and below power supply system. High and low voltage control cabinet is a control electrical device used for power generation, transmission, distribution, power conversion and power consumption equipment;

[0003] The high and low voltage control cabinet is suitable for use in an ambient temperature of -5℃ to 40℃, and the air inside the high and low voltage control cabinet should be clean, and the relative humidity should not exceed 50% when the maximum temperature is +40℃. A higher relative humidity is allowed at a lower temperature, such as 90% at +20℃, otherwise the high and low voltage control cabinet is prone to malfunction during use;

[0004] Nowadays, when high and low voltage control cabinets are used outdoors, in order to ensure a certain heat dissipation effect, it is necessary to open heat dissipation holes on the cabinet body of the high and low voltage control cabinet to dissipate the heat generated during the operation of the high and low voltage control cabinet to ensure that the high and low voltage control cabinet can be used for a long time. However, when the heat dissipation holes are opened in the high and low voltage control cabinet, the external dust will also enter the high and low voltage control cabinet through the heat dissipation holes of the high and low voltage control cabinet. When there is a lot of dust inside the high and low voltage control cabinet, the high and low voltage control cabinet will be short-circuited.

[0005] When the high and low voltage control cabinets are dissipating heat through the heat dissipation holes, if the outside temperature is high, the heat in the high and low voltage control cabinets cannot be dissipated out through the heat dissipation holes in time, which will also cause problems in the operation of the high and low voltage control cabinets. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide a dustproof high and low voltage control cabinet for long-term use to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dustproof high and low voltage control cabinet for long-term use, comprising a high and low voltage control cabinet body, the high and low voltage control cabinet body is movably connected with a control cabinet door, the interior of the high and low voltage control cabinet body is fixedly connected with electrical components, the bottom end of the interior of the high and low voltage control cabinet body is fixedly connected with an active heat dissipation mechanism, the side wall of the high and low voltage control cabinet body is movably connected with a dustproof heat dissipation mechanism, and the bottom end of the dustproof heat dissipation mechanism is movably connected with a dust suction mechanism;

[0008] The dustproof and heat dissipation mechanism includes a support plate fixedly connected to the inner wall of the high and low voltage control cabinet body, a placement block is fixedly connected to the side of the top of the support plate away from the active heat dissipation mechanism, an electromagnet is fixedly connected to the middle of the top of the placement block, a magnetic plate is provided above the electromagnet, a rack plate is fixedly connected to the top of the magnetic plate, a driven gear is meshed with the rack plate, a rotating shaft is fixedly connected to the inside of the driven gear, a shielding plate is fixedly connected to the rotating shaft, and four groups of driven gears, rotating shafts and shielding plates are arranged from top to bottom and contact each other.

[0009] In a preferred embodiment, the dust suction mechanism is movably connected to a sealing block on the side away from the control cabinet door, the sealing block is fixedly connected to the high and low voltage control cabinet body, and the dustproof and heat dissipation mechanism and the dust suction mechanism can move relative to the sealing block.

[0010] In a preferred embodiment, the support plate is internally movably connected to a limit rod, and the support plate, the placement block and the magnetic plate are internally provided with a through hole adapted to the limit rod, and the top end of the limit rod is fixedly connected to a connecting block, and the connecting block is fixedly connected to the interior of the high and low voltage control cabinet body.

[0011] In a preferred embodiment, a avoidance groove for the rack plate to move is provided inside the connecting block, a stabilizing rod is movably connected to the top end of the rack plate, a avoidance hole matching the bottom end of the stabilizing rod is provided on the top end of the rack plate, and the stabilizing rod is fixedly connected to the inner side of the high and low voltage control cabinet body.

[0012] In a preferred embodiment, the dust suction mechanism includes a sealing movable plate located below the magnetic plate and in contact with the magnetic plate, the top of the sealing movable plate is provided with an inclined surface adapted to the bottom end of the magnetic plate, the side of the sealing movable plate close to the placement block is provided with a stepped hole, a support rod is movably connected in the small hole of the stepped hole of the sealing movable plate, and a pre-compression spring is movably connected in the countersunk hole of the stepped hole of the sealing movable plate, and the support rod is fixedly connected to the placement block.

[0013] In a preferred embodiment, the bottom end of the sealing movable plate is movably connected to a dust suction plate, the dust suction plate is in contact with the support plate, the inside of the dust suction plate is movably connected to a reciprocating screw, the bottom end of the reciprocating screw is fixedly connected to a second bevel tooth, the second bevel tooth is meshed with a first bevel tooth, the side of the first bevel tooth away from the second bevel tooth is fixedly connected to an output shaft, and the side of the output shaft away from the first bevel tooth is fixedly connected to a servo motor.

[0014] In a preferred embodiment, a partition plate is fixedly connected to the bottom end of the dust suction plate, and the dust suction plate is divided into two parts by the partition plate. The part of the dust suction plate close to the reciprocating screw rod is not magnetic and cannot absorb dust, while the part of the dust suction plate away from the reciprocating screw rod is magnetic and can absorb dust.

[0015] In a preferred embodiment, the active heat dissipation mechanism includes a protective block located inside the high and low voltage control cabinet body and fixedly connected to the bottom end of the high and low voltage control cabinet body, the interior of the protective block is fixedly connected to a rotating motor, the rotating motor is fixedly connected to a fan shaft, three rotating blades are fixedly connected to both ends of the fan shaft, the fan shaft is connected to a synchronous belt, the fan shaft rotates synchronously with the synchronous shaft through the synchronous belt, and three driven fan blades are fixedly connected to both ends of the synchronous shaft.

[0016] Technical effects and advantages of the present invention:

[0017] The present invention is provided with an electromagnet, a magnetic plate, a rack plate, and a shielding plate. When the electromagnet is energized, a magnetic attraction is generated between the electromagnet and the magnetic plate, so that the magnetic plate drives the rack plate to move downward. When the rack plate moves downward, the rotating shaft rotates, so that the shielding plate rotates. After the shielding plate rotates, heat can be dissipated. When the shielding plate does not rotate, the main body of the high and low voltage control cabinet is sealed to prevent dust from entering the main body of the high and low voltage control cabinet.

[0018] When the magnetic plate of the present invention moves downward, it contacts with the sealing movable plate and makes the sealing movable plate move toward the placement block. After the sealing movable plate moves, the dust collecting plate is exposed. After the servo motor is started, it drives the reciprocating screw rod to rotate. When the reciprocating screw rod rotates, the dust collecting plate reciprocates up and down. The dust collecting plate absorbs the dust entering the main body of the high and low voltage control cabinet. When the dust collecting plate is not working, the dust collecting plate is below the sealing movable plate to prevent dust from floating in the main body of the high and low voltage control cabinet.

[0019] When the rotating motor of the present invention is started, the rotating blades are driven to rotate by the fan shaft. When the fan shaft rotates, the driven blades are driven to rotate by the synchronous belt. When the rotating blades and the driven blades rotate, air is blown outward, and the gas finally passes through the side of the rotated baffle plate to the outside of the high and low voltage control cabinet body. Therefore, the heat inside the high and low voltage control cabinet body is sent to the outside more quickly, thereby ensuring the heat dissipation effect of the high and low voltage control cabinet body and enabling it to be used for a long time in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the high and low voltage control cabinet body of the present invention.

[0022] Figure 3It is a schematic diagram of the overall structure of the dust-proof and heat-dissipating mechanism of the present invention.

[0023] Figure 4 It is a schematic diagram of the explosion structure of the dust-proof heat dissipation mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the overall structure of the dust collection mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the inner cross-sectional structure of the protection block of the present invention.

[0026] Figure 7 It is a schematic diagram of the internal structure of the sealing movable plate of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the active heat dissipation mechanism of the present invention.

[0028] Fig. 9 It is a structural schematic diagram of the active heat dissipation mechanism of the present invention when dissipating heat.

[0029] The accompanying drawings are marked as follows: 1. high and low voltage control cabinet body; 2. control cabinet door; 3. electrical components; 4. dust-proof and heat dissipation mechanism; 401. support plate; 402. placement block; 403. electromagnet; 404. magnetic plate; 405. limit rod; 406. connection block; 407. rack plate; 408. driven gear; 409. rotating shaft; 410. shielding plate; 411. stabilizing rod; 5. dust suction mechanism; 501. sealing movable plate; 50 2. Support rod; 503. Preload spring; 504. Servo motor; 505. Output shaft; 506. First bevel gear; 507. Second bevel gear; 508. Reciprocating screw; 509. Dust collecting plate; 510. Partition plate; 6. Active heat dissipation mechanism; 601. Protection block; 602. Rotating motor; 603. Fan shaft; 604. Rotating blades; 605. Synchronous belt; 606. Synchronous shaft; 607. Driven fan blades; 7. Sealing block. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The long-term use of a dust-proof high and low voltage control cabinet involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] Reference Figure 1 and Figure 2The present invention provides a dustproof high and low voltage control cabinet for long-term use, comprising a high and low voltage control cabinet body 1, the high and low voltage control cabinet body 1 is movably connected with a control cabinet door 2, the interior of the high and low voltage control cabinet body 1 is fixedly connected with an electrical component 3, the bottom end of the interior of the high and low voltage control cabinet body 1 is fixedly connected with an active heat dissipation mechanism 6, the side wall of the high and low voltage control cabinet body 1 is movably connected with a dustproof heat dissipation mechanism 4, the bottom end of the dustproof heat dissipation mechanism 4 is movably connected with a dust suction mechanism 5, the side of the dust suction mechanism 5 away from the control cabinet door 2 is movably connected with a sealing block 7, the sealing block 7 is fixedly connected to the high and low voltage control cabinet body 1, and the dustproof heat dissipation mechanism 4 and the dust suction mechanism 5 can move relative to the sealing block 7.

[0032] In the embodiment of the present application, one side of the dustproof and heat dissipation mechanism 4 is sealed by the control cabinet door 2, and the other side is sealed by the sealing block 7. Therefore, after the dust suction mechanism 5 absorbs dust, the dust will only be below the dust suction mechanism 5 and the dustproof and heat dissipation mechanism 4, and will not enter the top of the dust suction mechanism 5 again, thereby preventing the dust from floating up again and making the dust absorption effect invalid.

[0033] Reference Figure 2 , Figure 3 , Figure 4 as well as Fig. 9 The dustproof heat dissipation mechanism 4 includes a support plate 401 fixedly connected to the inner wall of the high and low voltage control cabinet body 1, a placement block 402 is fixedly connected to the side of the top of the support plate 401 away from the active heat dissipation mechanism 6, an electromagnet 403 is fixedly connected to the middle of the top of the placement block 402, a magnetic plate 404 is provided above the electromagnet 403, a rack plate 407 is fixedly connected to the top of the magnetic plate 404, a driven gear 408 is meshed with the rack plate 407, a rotating shaft 409 is fixedly connected to the inside of the driven gear 408, a shielding plate 410 is fixedly connected to the rotating shaft 409, and four groups of driven gears 408, rotating shafts 409 and shielding plates 410 are provided, and four groups of shielding plates 410 are provided. Arranged from top to bottom and in contact with each other, the support plate 401 is internally movably connected to a limit rod 405, and the support plate 401, the placement block 402 and the magnetic plate 404 are internally provided with a through hole matched with the limit rod 405, and the top end of the limit rod 405 is fixedly connected with a connecting block 406, and the connecting block 406 is fixedly connected to the inside of the high and low voltage control cabinet body 1, and the inside of the connecting block 406 is provided with a avoidance groove for the rack plate 407 to move, and the top end of the rack plate 407 is movably connected with a stabilizing rod 411, and the top end of the rack plate 407 is provided with an avoidance hole matched with the bottom end of the stabilizing rod 411, and the stabilizing rod 411 is fixedly connected to the inner side of the high and low voltage control cabinet body 1.

[0034] In the embodiment of the present application, when heat dissipation is not needed, the four groups of baffles 410 are in a vertical state, and the four groups of baffles 410 are arranged from top to bottom and contact each other, which will seal the interior of the high and low voltage control cabinet body 1. At this time, the outside air cannot enter the high and low voltage control cabinet body 1, so dust will not be brought into the high and low voltage control cabinet body 1, and in rainy weather, the baffles 410 will seal the interior of the high and low voltage control cabinet body 1, and can also prevent the equipment from being scrapped due to water ingress. When heat dissipation is needed, the magnetic plate 404 will drive the rack plate 407 to move downward. When the rack plate 407 moves downward, the baffle plate 410 is rotated through the driven gear 408. After the baffle plate 410 rotates, Fig. 9 As shown, heat can be dissipated at this time, the limit rod 405 can limit the moving position of the magnetic plate 404 and make the magnetic plate 404 more stable when moving, the connecting block 406 can avoid the rack plate 407 to ensure that the rack plate 407 can move normally, and the stabilizing rod 411 will limit the moving position of the rack plate 407 to prevent the rack plate 407 from shaking.

[0035] Reference Figure 5 , Figure 6 as well as Figure 7 The dust collecting mechanism 5 includes a sealing movable plate 501 located below the magnetic plate 404 and in contact with the magnetic plate 404. The top of the sealing movable plate 501 is provided with an inclined surface adapted to the bottom of the magnetic plate 404. The side of the sealing movable plate 501 close to the placement block 402 is provided with a stepped hole. A support rod 502 is movably connected in the small hole of the stepped hole of the sealing movable plate 501, and a pre-compression spring 503 is movably connected in the countersunk hole of the stepped hole of the sealing movable plate 501. The support rod 502 is fixedly connected to the placement block 402. The bottom end of the sealing movable plate 501 is movably connected to a dust collecting plate 509, and the dust collecting plate 509 is in contact with the support plate 401. The dust collecting plate 509 is 9 is internally movably connected with a reciprocating screw 508, the bottom end of the reciprocating screw 508 is fixedly connected with a second bevel gear 507, the second bevel gear 507 is meshed with a first bevel gear 506, the side of the first bevel gear 506 away from the second bevel gear 507 is fixedly connected with an output shaft 505, the side of the output shaft 505 away from the first bevel gear 506 is fixedly connected with a servo motor 504, the bottom end of the dust suction plate 509 is fixedly connected with a partition plate 510, the dust suction plate 509 is divided into two parts by the partition plate 510, the part of the dust suction plate 509 close to the reciprocating screw 508 is not magnetic and cannot absorb dust, and the part of the dust suction plate 509 away from the reciprocating screw 508 is magnetic and can absorb dust.

[0036] In the embodiment of the present application, when the magnetic plate 404 moves downward, the bottom end of the magnetic plate 404 and the top end of the sealing movable plate 501 are both provided with inclined surfaces, so when the magnetic plate 404 moves downward, the sealing movable plate 501 will move in the direction of the placement block 402, and the side of the sealing movable plate 501 is provided with a stepped hole, and the small hole in the stepped hole avoids the support rod 502, and the support rod 502 also makes the sealing movable plate 501 move more smoothly, and the countersunk hole in the stepped hole is provided with a pre-compression spring 503, so after the sealing movable plate 501 is moved away, the pre-compression spring 503 will be compressed, and when the magnetic plate 404 is reset upward, the pre-compression spring 503 will be compressed. The spring 503 will reset the sealing movable plate 501. When the sealing movable plate 501 is not moved, the top of the dust collecting plate 509 will be sealed to prevent dust from floating up, and the partition plate 510 provided at the bottom of the dust collecting plate 509 will block the space below the dust collecting plate 509. When the dust collecting plate 509 absorbs dust below, it will not enter the reciprocating screw 508 and the connection between the second bevel tooth 507 and the first bevel tooth 506, so that it can operate for a long time. When the reciprocating screw 508 rotates, the dust collecting plate 509 will move up and down to absorb the dust in the high and low voltage control cabinet body 1 to prevent the high and low voltage control cabinet body 1 from being filled with dust.

[0037] Reference Figure 1 , Figure 5 and Figure 8 The active heat dissipation mechanism 6 includes a protection block 601 located inside the high and low voltage control cabinet body 1 and fixedly connected to the bottom end of the high and low voltage control cabinet body 1. A rotating motor 602 is fixedly connected inside the protection block 601. The rotating motor 602 is fixedly connected to a fan shaft 603. Three rotating blades 604 are fixedly connected to both ends of the shaft body of the fan shaft 603. The shaft body of the fan shaft 603 is connected to a synchronous belt 605. The fan shaft 603 rotates synchronously with a synchronous shaft 606 through the synchronous belt 605. Three driven fan blades 607 are fixedly connected to both ends of the synchronous shaft 606.

[0038] In the embodiment of the present application, when the outside temperature is high or the heat generated by the electrical component 3 is high, the rotating motor 602 is started and drives the rotating blades 604 to rotate through the fan shaft 603. When the fan shaft 603 rotates, the synchronous shaft 606 and the driven fan blades 607 are driven to rotate through the synchronous belt 605. When the rotating blades 604 and the driven fan blades 607 rotate, the gas in the high and low voltage control cabinet body 1 is blown to the outside, and then the heat in the high and low voltage control cabinet body 1 is blown out, so that the present application can be used for a long time without being damaged. In addition, an exhaust hole is provided at the top of the protective block 601 of the present application to ensure the circulation of gas.

[0039] The working principle of the present invention is as follows: when heat dissipation is not required, the shielding plate 410 is in a vertical state, and the interior of the high and low voltage control cabinet body 1 is sealed at this time to prevent external dust from entering the high and low voltage control cabinet body 1. When heat dissipation is required, the electromagnet 403 is energized and a magnetic attraction is generated between the electromagnet 403 and the magnetic plate 404. Under the action of the magnetic attraction, the magnetic plate 404 moves downward, and the rack plate 407 moves downward when the magnetic plate 404 moves downward. When the rack plate 407 moves downward, the driven gear 408 rotates. When the driven gear 408 rotates, the shielding plate 410 is driven to rotate through the rotating shaft 409. After the shielding plate 410 rotates, through holes are generated on the upper and lower sides of the shielding plate 410 for communicating with the outside world, and air is exchanged with the outside world to dissipate heat.

[0040] When the magnetic plate 404 moves downward, it simultaneously squeezes the sealing movable plate 501 downward, and at this time, the sealing movable plate 501 moves toward the placement block 402 and compresses the pre-compression spring 503. After the sealing movable plate 501 moves, the dust collecting plate 509 is retained in the outside world, and the servo motor 504 is started and drives the first bevel gear 506 to rotate through the output shaft 505. When the first bevel gear 506 rotates, it drives the reciprocating screw rod 508 to rotate through the second bevel gear 507. When the reciprocating screw rod 508 rotates, the dust collecting plate 509 moves up and down. When the dust collecting plate 509 moves up and down, it absorbs dust in the high and low voltage control cabinet body 1;

[0041] After the dust is absorbed, the dust collecting plate 509 moves to the bottom, and the pre-compression spring 503 is powered off. At this time, the pre-compression spring 503 is reset to reset the sealing movable plate 501. When the sealing movable plate 501 is reset, it moves to the top of the dust collecting plate 509 to seal the dust collecting plate 509. At this time, the dust on the dust collecting plate 509 will not fall into the high and low voltage control cabinet body 1 again. On the other hand, it makes the magnetic plate 404 move upward. When the magnetic plate 404 moves upward, the driven gear 408 rotates in the opposite direction, and finally the shielding plate 410 is reset to seal the inside of the high and low voltage control cabinet body 1.

[0042] When the outside temperature is high or the heat generated by the electrical component 3 is high, after the baffle 410 is in the open state, the rotating motor 602 starts and drives the rotating blades 604 to rotate through the fan shaft 603. When the fan shaft 603 rotates, it drives the synchronous shaft 606 and the driven fan blades 607 to rotate through the synchronous belt 605. When the rotating blades 604 and the driven fan blades 607 rotate, they blow the gas in the high and low voltage control cabinet body 1 to the outside, and then blow out the heat in the high and low voltage control cabinet body 1, so that the present application can be used for a long time without being damaged.

[0043] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The units and algorithm steps of each example described in the embodiment can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0044] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0045] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0046] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dustproof high and low voltage control cabinet for long-term use, comprising a high and low voltage control cabinet body (1), characterized in that: The high and low voltage control cabinet body (1) is movably connected to a control cabinet door (2); an electrical component (3) is fixedly connected inside the high and low voltage control cabinet body (1); an active heat dissipation mechanism (6) is fixedly connected to the bottom end of the high and low voltage control cabinet body (1); a dustproof heat dissipation mechanism (4) is movably connected inside the side wall of the high and low voltage control cabinet body (1); and a dust suction mechanism (5) is movably connected to the bottom end of the dustproof heat dissipation mechanism (4); the dustproof heat dissipation mechanism (4) comprises a support plate (401) fixedly connected to the inner wall of the high and low voltage control cabinet body (1); a top end of the support plate (401) is fixedly connected to a side away from the active heat dissipation mechanism (6). A placement block (402) is connected, an electromagnet (403) is fixedly connected to the middle of the top of the placement block (402), a magnetic plate (404) is provided above the electromagnet (403), a rack plate (407) is fixedly connected to the top of the magnetic plate (404), a driven gear (408) is meshed with the rack plate (407), a rotating shaft (409) is fixedly connected inside the driven gear (408), a shielding plate (410) is fixedly connected to the rotating shaft (409), and four groups of the driven gear (408), the rotating shaft (409) and the shielding plate (410) are provided, and the four groups of shielding plates (410) are arranged from top to bottom and contact each other; The dust collecting mechanism (5) comprises a sealing movable plate (501) located below the magnetic plate (404) and in contact with the magnetic plate (404); the top of the sealing movable plate (501) is provided with an inclined surface adapted to the bottom of the magnetic plate (404); the side of the sealing movable plate (501) close to the placement block (402) is provided with a stepped hole; a support rod (502) is movably connected in the small hole of the stepped hole of the sealing movable plate (501); a pre-stressed spring (503) is movably connected in the counterbore of the stepped hole of the sealing movable plate (501); and the support rod (502) is fixedly connected to the placement block (402); The bottom end of the sealing movable plate (501) is movably connected to a dust collecting plate (509), the dust collecting plate (509) is in contact with the support plate (401), the inside of the dust collecting plate (509) is movably connected to a reciprocating screw rod (508), the bottom end of the reciprocating screw rod (508) is fixedly connected to a second bevel gear (507), the second bevel gear (507) is meshed with a first bevel gear (506), the side of the first bevel gear (506) away from the second bevel gear (507) is fixedly connected to an output shaft (505), and the side of the output shaft (505) away from the first bevel gear (506) is fixedly connected to a servo motor (504); A partition plate (510) is fixedly connected to the bottom end of the dust collecting plate (509), and the dust collecting plate (509) is divided into two parts by the partition plate (510). The part of the dust collecting plate (509) close to the reciprocating screw rod (508) is not magnetic and cannot absorb dust, while the part of the dust collecting plate (509) away from the reciprocating screw rod (508) is magnetic and can absorb dust.

2. A dustproof high and low voltage control cabinet for long-term use according to claim 1, characterized in that: A sealing block (7) is movably connected to the side of the dust collecting mechanism (5) away from the control cabinet door (2); the sealing block (7) is fixedly connected to the high and low voltage control cabinet body (1); and the dustproof and heat dissipating mechanism (4) and the dust collecting mechanism (5) are movable relative to the sealing block (7).

3. A dustproof high and low voltage control cabinet for long-term use according to claim 1, characterized in that: The support plate (401) is movably connected to a limit rod (405) inside, the support plate (401), the placement block (402) and the magnetic plate (404) are provided with a through hole matched with the limit rod (405), the top end of the limit rod (405) is fixedly connected to a connection block (406), and the connection block (406) is fixedly connected to the inside of the high and low voltage control cabinet body (1).

4. A dustproof high and low voltage control cabinet for long-term use according to claim 3, characterized in that: The connection block (406) is provided with an avoidance groove for the rack plate (407) to move, the top end of the rack plate (407) is movably connected to a stabilizing rod (411), the top end of the rack plate (407) is provided with an avoidance hole adapted to the bottom end of the stabilizing rod (411), and the stabilizing rod (411) is fixedly connected to the inner side of the high and low voltage control cabinet body (1).

5. The dustproof high and low voltage control cabinet for long-term use according to claim 1, characterized in that: The active heat dissipation mechanism (6) comprises a protection block (601) located inside the high and low voltage control cabinet body (1) and fixedly connected to the bottom end of the high and low voltage control cabinet body (1); a rotating motor (602) is fixedly connected inside the protection block (601); the rotating motor (602) is fixedly connected to a fan shaft (603); three rotating blades (604) are fixedly connected to both ends of the shaft body of the fan shaft (603); a synchronous belt (605) is connected to the shaft body of the fan shaft (603); the fan shaft (603) rotates synchronously with a synchronous shaft (606) via the synchronous belt (605); and three driven fan blades (607) are fixedly connected to both ends of the synchronous shaft (606).

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