Switch cabinet based on split type heat dissipation air duct and dynamic dust removal protection and control method thereof

Abstract

The invention discloses a switch cabinet based on a split type heat dissipation air duct and dynamic dust removal protection and a control method thereof.The switch cabinet comprises a switch cabinet body, a switch cabinet door is hinged to the switch cabinet body, the switch cabinet body is provided with an electrical device through a mounting plate, and a heat conduction assembly is arranged between the mounting plate and the electrical device; the external circulation heat dissipation assembly is arranged on the top of the switch cabinet body, the two internal circulation heat dissipation assemblies are arranged on the two sides of the lower portion of the switch cabinet body respectively, the dynamic dust removal assembly is arranged in the internal circulation heat dissipation assemblies, a split type structure is adopted, internal and external air circulates, forced air cooling heat dissipation is carried out on the interior of the switch cabinet, and the heat dissipation efficiency of the switch cabinet is improved. The heat conduction and heat dissipation effects of the switch cabinet are improved, the heat dissipation efficiency of the switch cabinet is improved, the heat dissipation performance of the switch cabinet is greatly improved on the basis of the directional heat conduction effect of the heat conduction assembly, the waterproof and dustproof performance of the switch cabinet can be improved, vibration dust removal treatment is carried out, and the switch cabinet has an automatic dust removal function.

Description

Technical Field

[0001] The invention belongs to the technical field of switch cabinets, and particularly relates to a switch cabinet based on a split heat dissipation air duct and dynamic dust removal protection and a control method thereof. Background Art

[0002] A switch cabinet is an electrical device. The external line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set as required. The main function of the switch cabinet is to switch, control, and protect electrical equipment during the processes of power generation, power transmission, power distribution, and power conversion in the power system. The components in the switch cabinet mainly include a circuit breaker, a disconnector, a load switch, an operating mechanism, an instrument transformer, and various protection devices, etc., and are mainly applicable to various different occasions such as power plants, substations, petrochemical industries, metallurgical rolling mills, light industry and textile industries, factories and mines, residential quarters, high-rise buildings, etc.

[0003] Most of the existing switch cabinets use an open louver structure for natural heat dissipation, with poor heat dissipation effect, and it is easy to cause dust and moisture to enter the interior of the switch cabinet, and it is necessary to frequently clean the dust, which affects the normal use of the switch cabinet. For this reason, we propose a switch cabinet based on a split heat dissipation air duct and dynamic dust removal protection and a control method thereof. Summary of the Invention

[0004] The purpose of the invention is to provide a switch cabinet based on a split heat dissipation air duct and dynamic dust removal protection and a control method thereof to solve the problems proposed in the above background art.

[0005] To achieve the above purpose, the invention provides the following technical solutions: A switch cabinet based on a split heat dissipation air duct and dynamic dust removal protection, including, A switch cabinet body, on which a switch cabinet door is hinged, and electrical devices are arranged on the switch cabinet body through a mounting plate; A heat conduction component, which is arranged between the mounting plate and the electrical device, and is used for directional heat conduction and heat dissipation of the electrical device; An external circulation heat dissipation component, which is arranged on the top of the switch cabinet body and is used for radiating the heat inside the switch cabinet body to the outside; Two internal circulation heat dissipation components, which are respectively arranged on both sides of the lower part of the switch cabinet body, and are used for conveying external cold air to the switch cabinet body for heat dissipation and cooling; A dynamic dust removal component, which is arranged in the internal circulation heat dissipation component and is used for isolating external dust and moisture of the switch cabinet body and realizing dynamic dust removal treatment.

[0006] Preferably, the heat conduction component includes a heat conduction silica gel pad and a ceramic heat dissipation hole plate; The heat conduction silica gel pad is arranged between the mounting plate and the electrical device. A heat dissipation opening is formed at the top of the switch cabinet body, and the ceramic heat dissipation hole plate is arranged in the heat dissipation opening. The heat conduction silica gel pad is connected to the ceramic heat dissipation hole plate.

[0007] Preferably, the external circulation heat dissipation component includes an external circulation heat dissipation cover and a centrifugal heat dissipation fan; The external circulation heat dissipation cover is arranged on the top of the switch cabinet body corresponding to the outside of the heat dissipation opening through mounting bolts, and the centrifugal heat dissipation fan is arranged on the external circulation heat dissipation cover.

[0008] Preferably, the internal circulation heat dissipation component includes an internal circulation heat dissipation housing, an internal circulation heat dissipation cover, an electric louver and an axial flow intake fan; A first air intake is formed on the outer side of the lower part of the switch cabinet body. The internal circulation heat dissipation housing is arranged on the outer side of the lower part of the switch cabinet body corresponding to the first air intake through mounting bolts. The internal circulation heat dissipation cover is hinged to the internal circulation heat dissipation housing. A second air intake is formed on the internal circulation heat dissipation housing. The electric louver is arranged in the internal circulation heat dissipation housing through spring guide columns, and the axial flow intake fan is arranged in the internal circulation heat dissipation housing between the first air intake and the electric louver.

[0009] Preferably, a deflector plate distributed obliquely upward is arranged at the position inside the switch cabinet body corresponding to the first air intake.

[0010] Preferably, the dynamic dust removal component includes a moisture-proof breathable film component and a vibration dust removal component; The moisture-proof breathable film component is arranged at the position on the internal circulation heat dissipation cover corresponding to the second air intake, and the vibration dust removal component is arranged at the position in the internal circulation heat dissipation housing corresponding to the electric louver.

[0011] Preferably, the moisture-proof breathable film component includes a plug-in frame, a waterproof breathable film plate and a push-pull strip; The plug-in frame is arranged on the outer side of the internal circulation heat dissipation cover corresponding to the second air intake. The waterproof breathable film plate is connected to the push-pull strip, and the waterproof breathable film plate is plugged between the plug-in frame and the internal circulation heat dissipation cover.

[0012] Preferably, the vibration dust removal component includes a multi-stage filter plate, an electromagnetic vibrator and a dust collection box; The multi-stage filter plate is arranged on one side of the electric louver near the second air inlet, and a space is reserved between the multi-stage filter plate and the electric louver. The electromagnetic vibrator is arranged at the bottom of the multi-stage filter plate and the electric louver through a backing plate, and both the multi-stage filter plate and the electric louver are connected to the electromagnetic vibrator. The dust collection box is inserted between the multi-stage filter plate, the electric louver and the electromagnetic vibrator.

[0013] Preferably, the multi-stage filter plate includes a primary filter cotton plate and an electrostatic precipitator plate, and the primary filter cotton plate and the electrostatic precipitator plate are attached and connected.

[0014] A control method for a switch cabinet based on a split heat dissipation air duct and dynamic dust removal protection includes the following steps: A. Circulating heat dissipation treatment: When the switch cabinet is operating, heat is generated inside the switch cabinet. At this time, the external circulation heat dissipation component and the internal circulation heat dissipation component operate synchronously. First, the heat generated by the electrical devices is directionally conducted by the thermal conductive silicone pad and the ceramic heat dissipation hole plate. Then, the centrifugal heat dissipation fan starts, and the heat conducted by the ceramic heat dissipation hole plate is quickly radiated outwards by the centrifugal heat dissipation fan to reduce the temperature inside the switch cabinet body. At the same time, the electric louver and the axial flow intake fan operate. The electric louver opens, and the axial flow intake fan sucks external cold air from the second air inlet and the electric louver, and then conveys it obliquely upwards by the deflector to the inside of the switch cabinet body for forced air cooling of the inside of the switch cabinet body, and a circulating heat dissipation air duct is formed to perform rapid circulating heat dissipation treatment on the switch cabinet. B. Dynamic dust removal treatment: When the switch cabinet is undergoing circulating heat dissipation treatment, the waterproof and breathable membrane plate is at the second air inlet to filter the water vapor in the external cold air. At the same time, the multi-stage filter plate filters the dust in the external cold air, and the electromagnetic vibrator vibrates at a frequency of 5 times per day for 10 - 20 seconds each time. The electromagnetic vibrator drives the multi-stage filter plate and the electric louver to vibrate, so that the dust vibrated off the multi-stage filter plate and the electric louver is collected in the dust collection box to complete the dynamic dust removal treatment.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention is provided with an external circulation heat dissipation component and an internal circulation heat dissipation component. The combined use of the external circulation heat dissipation component and the internal circulation heat dissipation component enables the switch cabinet to form circulating heat dissipation. Moreover, the external circulation heat dissipation component, the internal circulation heat dissipation component and the switch cabinet body adopt a split structure, and the internal and external air circulates, performing forced air cooling on the inside of the switch cabinet, further improving the heat conduction and heat dissipation effect of the switch cabinet, enhancing the heat dissipation efficiency of the switch cabinet, and greatly improving the heat dissipation performance of the switch cabinet on the basis of the directional heat conduction of the heat conduction component. 2. The present invention is provided with a heat conduction component and an external circulation heat dissipation component. During use, the heat conductive silicone pad and the ceramic heat dissipation hole plate conduct the heat generated by the electrical device in a directional manner, and then the centrifugal heat dissipation fan radiates the heat outward. The combined use of the heat conduction component and the external circulation heat dissipation component greatly improves the heat conduction and heat dissipation effect of the switch cabinet and enhances the heat dissipation efficiency of the switch cabinet. 3. The present invention is provided with a dynamic dust removal component. The dust and water vapor in the external cold air are filtered through the multi-stage filter plate and the moisture-proof breathable membrane component, improving the waterproof and dust-proof performance of the switch cabinet, reducing the entry of dust and water vapor into the interior of the switch cabinet, ensuring the normal use of the switch cabinet. Moreover, the electromagnetic vibrator can vibrate and remove the dust on the multi-stage filter plate and the electric louver, collect the dust in the dust collection box, eliminating the need for manual dust cleaning, saving time and effort, enabling the switch cabinet to have an automatic dust removal function, and ensuring the normal use of the switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic perspective view of the overall structure of the present invention; Figure 2 is a schematic perspective view of the overall structure of the present invention; Figure 3 is a schematic cross-sectional view of the present invention; Figure 4 is a schematic cross-sectional view of the present invention; Figure 5 is a schematic perspective view of the internal circulation heat dissipation component of the present invention; Figure 6 is a partial schematic perspective view of the internal circulation heat dissipation component and the dynamic dust removal component of the present invention; Figure 7 is a partial schematic perspective view of the internal circulation heat dissipation component and the dynamic dust removal component of the present invention; Figure 8 is a partial schematic perspective view of the dynamic dust removal component of the present invention.

[0017] In the figure: 1. Switch cabinet body; 101. Heat dissipation opening; 102. First air inlet; 2. Switch cabinet door; 3. Mounting plate; 4. Electrical device; 5. Heat conduction component; 501. Heat conductive silica gel pad; 502. Ceramic heat dissipation hole plate; 6. External circulation heat dissipation component; 601. External circulation heat dissipation cover; 602. Centrifugal heat dissipation fan; 7. Internal circulation heat dissipation component; 701. Internal circulation heat dissipation housing; 702. Internal circulation heat dissipation cover body; 703. Electric louver; 704. Axial flow air inlet fan; 705. Second air inlet; 706. Deflector; 8. Dynamic dust removal component; 801. Moisture-proof and breathable film component; 8011. Plug-in frame; 8012. Waterproof and breathable film plate; 8013. Push-pull bar; 802. Vibration dust removal component; 8021. Multi-stage filter plate; 80211. Primary effect filter cotton plate; 80212. Electrostatic dust removal plate; 8022. Electromagnetic vibrator; 8023. Dust collection box; 8024. Pad. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-8 , the switch cabinet based on the split heat dissipation air duct and dynamic dust removal protection provided by the present invention includes Switch cabinet body 1, a switch cabinet door 2 is hinged on the switch cabinet body 1, and an electrical device 4 is arranged on the switch cabinet body 1 through a mounting plate 3; Heat conduction component 5, the heat conduction component 5 is arranged between the mounting plate 3 and the electrical device 4, the heat conduction component 5 is used for directional heat conduction and heat dissipation of the electrical device 4, and the heat conduction component 5 includes a heat conductive silica gel pad 501 and a ceramic heat dissipation hole plate 502; the heat conductive silica gel pad 501 is arranged between the mounting plate 3 and the electrical device 4, a heat dissipation opening 101 is opened at the top of the switch cabinet body 1, the ceramic heat dissipation hole plate 502 is arranged in the heat dissipation opening 101, and the heat conductive silica gel pad 501 is connected to the ceramic heat dissipation hole plate 502; External circulation heat dissipation component 6, the external circulation heat dissipation component 6 is arranged on the top of the switch cabinet body 1, the external circulation heat dissipation component 6 is used for radiating the heat inside the switch cabinet body 1 to the outside, and the external circulation heat dissipation component 6 includes an external circulation heat dissipation cover 601 and a centrifugal heat dissipation fan 602; the external circulation heat dissipation cover 601 is arranged on the outside of the top of the switch cabinet body 1 corresponding to the heat dissipation opening 101 through mounting bolts, and the centrifugal heat dissipation fan 602 is arranged on the external circulation heat dissipation cover 601; The present invention is provided with a heat conduction component 5 and an external circulation heat dissipation component 6. During use, the heat conduction silicone pad 501 and the ceramic heat dissipation hole plate 502 conduct heat from the electrical device 3 in a directional manner, and then the centrifugal heat dissipation fan 602 radiates the heat outward. The combined use of the heat conduction component 5 and the external circulation heat dissipation component 6 greatly improves the heat conduction and heat dissipation effect of the switch cabinet and enhances the heat dissipation efficiency of the switch cabinet; An internal circulation heat dissipation component 7. There are two internal circulation heat dissipation components 7, which are respectively arranged on both sides of the lower part of the switch cabinet body 1. The internal circulation heat dissipation component 7 is used to convey external cold air to the switch cabinet body 1 for heat dissipation and cooling. The internal circulation heat dissipation component 7 includes an internal circulation heat dissipation housing 701, an internal circulation heat dissipation cover 702, an electric louver 703, and an axial flow intake fan 704; A first air intake 102 is opened on the outer side of the lower part of the switch cabinet body 1. The internal circulation heat dissipation housing 701 is arranged on the outer side of the lower part of the switch cabinet body 1 corresponding to the first air intake 102 through mounting bolts. The internal circulation heat dissipation cover 702 is hinged on the internal circulation heat dissipation housing 701. A second air intake 705 is opened on the internal circulation heat dissipation housing 701. The electric louver 703 is arranged in the internal circulation heat dissipation housing 701 through spring guide columns. The axial flow intake fan 704 is arranged in the internal circulation heat dissipation housing 701 between the first air intake 102 and the electric louver 703. A deflector 706 distributed obliquely upward is arranged at the position corresponding to the first air intake 102 on the inner side of the switch cabinet body 1; The present invention is provided with an external circulation heat dissipation component 6 and an internal circulation heat dissipation component 7. The combined use of the external circulation heat dissipation component 6 and the internal circulation heat dissipation component 7 enables the switch cabinet to form a circulating heat dissipation. Moreover, the external circulation heat dissipation component 6, the internal circulation heat dissipation component 7, and the switch cabinet body 1 adopt a split structure, and the internal and external air circulates, performing forced air cooling on the inside of the switch cabinet, further improving the heat conduction and heat dissipation effect of the switch cabinet and enhancing the heat dissipation efficiency of the switch cabinet. On the basis of the directional heat conduction of the heat conduction component 5, the heat dissipation performance of the switch cabinet is greatly improved; A dynamic dust removal component 8. The dynamic dust removal component 8 is arranged in the internal circulation heat dissipation component 7. The dynamic dust removal component 8 is used to isolate the external dust and moisture of the switch cabinet body 1 and perform dynamic dust removal treatment. The dynamic dust removal component 8 includes a moisture-proof breathable film component 801 and a vibration dust removal component 802; The moisture-proof breathable film component 801 is arranged at the position corresponding to the second air intake 705 on the internal circulation heat dissipation cover 702. The vibration dust removal component 802 is arranged at the position corresponding to the electric louver 703 in the internal circulation heat dissipation housing 701; The moisture-proof and breathable film assembly 801 includes a plug-in frame 8011, a waterproof and breathable film plate 8012, and a push-pull bar 8013; the plug-in frame 8011 is arranged on the outer side of the inner circulation heat dissipation cover body 702 corresponding to the second air inlet 705, the waterproof and breathable film plate 8012 is connected to the push-pull bar 8013, and the waterproof and breathable film plate 8012 is plugged between the plug-in frame 8011 and the inner circulation heat dissipation cover body 702; The vibration dust removal assembly 802 includes a multi-stage filter plate 8021, an electromagnetic vibrator 8022, and a dust collection box 8023; the multi-stage filter plate 8021 is arranged on one side of the electric louver 703 close to the second air inlet 705, and a space is reserved between the multi-stage filter plate 8021 and the electric louver 703. The electromagnetic vibrator 8022 is arranged at the bottom of the multi-stage filter plate 8021 and the electric louver 703 through a backing plate 8024, and both the multi-stage filter plate 8021 and the electric louver 703 are connected to the electromagnetic vibrator 8022. The dust collection box 8023 is plugged between the multi-stage filter plate 8021, the electric louver 703, and the electromagnetic vibrator 8022. The multi-stage filter plate 8021 includes a primary filter cotton plate 80211 and an electrostatic dust removal plate 80212, and the primary filter cotton plate 80211 and the electrostatic dust removal plate 80212 are attached and connected; The present invention is provided with a dynamic dust removal assembly 8. The dust and moisture in the external cold air are filtered by the multi-stage filter plate 8021 and the moisture-proof and breathable film assembly 801, improving the waterproof and dust-proof performance of the switch cabinet, reducing the entry of dust and moisture into the interior of the switch cabinet, ensuring the normal use of the switch cabinet, and the electromagnetic vibrator 8022 can perform vibration dust removal treatment on the dust on the multi-stage filter plate 8021 and the electric louver 703, collecting the dust in the dust collection box 8023, eliminating the need for manual dust cleaning, saving time and effort, enabling the switch cabinet to have an automatic dust removal function, and ensuring the normal use of the switch cabinet.

[0020] The control method of the switch cabinet based on the split heat dissipation air duct and dynamic dust removal and protection provided by the present invention includes the following steps: A. Circulating heat dissipation treatment: When the switch cabinet is operating, heat is generated inside the switch cabinet. At this time, the external circulation heat dissipation assembly 6 and the internal circulation heat dissipation assembly 7 operate synchronously. First, the heat generated by the electrical device 4 is directionally conducted by the heat-conducting silicone pad 501 and the ceramic heat dissipation hole plate 502, and then the centrifugal heat dissipation fan 602 is started. The centrifugal heat dissipation fan 602 quickly radiates the heat conducted by the ceramic heat dissipation hole plate 502 outward to reduce the temperature inside the switch cabinet body 1. At the same time, the electric louver 703 and the axial flow air inlet fan 704 operate. The electric louver 703 is opened, and the axial flow air inlet fan 704 sucks the external cold air from the second air inlet 705 and the electric louver 703, and then conveys it obliquely upward by the guide plate 706 into the switch cabinet body 1 for forced air cooling of the inside of the switch cabinet body 1, forming a circulating heat dissipation air duct for rapid circulating heat dissipation treatment of the switch cabinet; B. Dynamic dust removal treatment: When the switch cabinet is subjected to cyclic heat dissipation treatment, the waterproof and breathable membrane plate 8012 is at the second air inlet 705 to filter the water vapor in the external cold air. At the same time, the multi-stage filter plate 8021 filters the dust in the external cold air, and the electromagnetic vibrator 8022 vibrates at a frequency of 5 times per day and 10 - 20 seconds each time. The electromagnetic vibrator 8022 drives the multi-stage filter plate 8021 and the electric louver 703 to vibrate, so that the dust falling from the multi-stage filter plate 8021 and the electric louver 703 is collected in the dust collection box 8023 to complete the dynamic dust removal treatment.

[0021] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switch cabinet based on split heat dissipation duct and dynamic dust removal protection, characterized in that: include, A switch cabinet (1), wherein a switch cabinet door (2) is hingedly connected to the switch cabinet (1), and the switch cabinet (1) is provided with an electrical device (4) via a mounting plate (3); A heat-conducting component (5), the heat-conducting component (5) being arranged between the mounting plate (3) and the electrical device (4), the heat-conducting component (5) being used for directional heat conduction and heat dissipation of the electrical device (4); An external circulation heat dissipation component (6), the external circulation heat dissipation component (6) being arranged on the top of the switch cabinet (1), and the external circulation heat dissipation component (6) being used for radiating heat from inside the switch cabinet (1) outwards; An internal circulation heat dissipation component (7), wherein two internal circulation heat dissipation components (7) are provided, and the two internal circulation heat dissipation components (7) are respectively arranged on both sides of the lower part of the switch cabinet (1), and the internal circulation heat dissipation components (7) are used to transport external cold air to the switch cabinet (1) for heat dissipation and cooling; A dynamic dust removal component (8), the dynamic dust removal component (8) being arranged in the internal circulation heat dissipation component (7), the dynamic dust removal component (8) being used to isolate external dust and moisture of the switch cabinet (1) and to achieve dynamic dust removal processing.

2. A switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 1, characterized in that: The heat-conducting component (5) comprises a heat-conducting silicone pad (501) and a ceramic heat-dissipating hole plate (502); The thermally conductive silicone pad (501) is arranged between the mounting plate (3) and the electrical device (4); a heat dissipation opening (101) is provided on the top of the switch cabinet (1); the ceramic heat dissipation hole plate (502) is arranged in the heat dissipation opening (101); and the thermally conductive silicone pad (501) and the ceramic heat dissipation hole plate (502) are connected.

3. A switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 2, characterized in that: The external circulation heat dissipation component (6) comprises an external circulation heat dissipation housing (601) and a centrifugal heat dissipation fan (602); The external circulation heat dissipation cover (601) is arranged on the top of the switch cabinet (1) at the outside of the heat dissipation port (101) by means of mounting bolts, and the centrifugal heat dissipation fan (602) is arranged on the external circulation heat dissipation cover (601).

4. The switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 1 is characterized in that: The internal circulation heat dissipation component (7) comprises an internal circulation heat dissipation housing (701), an internal circulation heat dissipation cover (702), an electric shutter (703) and an axial flow air intake fan (704); A first air inlet (102) is provided on the outer side of the lower part of the switch cabinet (1); the inner circulation heat dissipation housing (701) is arranged on the outer side of the lower part of the switch cabinet (1) corresponding to the first air inlet (102) by means of mounting bolts; the inner circulation heat dissipation cover (702) is hingedly connected to the inner circulation heat dissipation housing (701); a second air inlet (705) is provided on the inner circulation heat dissipation housing (701); the electric louver (703) is arranged in the inner circulation heat dissipation housing (701) by means of a spring guide column; and the axial flow air intake fan (704) is arranged in the inner circulation heat dissipation housing (701) between the first air inlet (102) and the electric louver (703).

5. A switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 4, characterized in that: A guide plate (706) that is inclined upward is provided at a position on the inner side of the switch cabinet (1) corresponding to the first air inlet (102).

6. A switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 4, characterized in that: The dynamic dust removal component (8) comprises a moisture-proof and breathable membrane component (801) and a vibration dust removal component (802); The moisture-proof breathable membrane assembly (801) is arranged at a position on the internal circulation heat dissipation cover (702) corresponding to the second air inlet (705), and the vibration dust removal assembly (802) is arranged at a position in the internal circulation heat dissipation housing (701) corresponding to the electric blind (703).

7. A switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 6, characterized in that: The moisture-proof breathable membrane assembly (801) comprises a plug-in frame (8011), a waterproof breathable membrane plate (8012) and a push-pull strip (8013); The plug-in frame (8011) is arranged on the outer side of the inner circulation heat dissipation cover body (702) corresponding to the second air inlet (705), the waterproof breathable membrane plate (8012) and the push-pull strip (8013) are connected, and the waterproof breathable membrane plate (8012) is plugged between the plug-in frame (8011) and the inner circulation heat dissipation cover body (702).

8. The switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 6 is characterized in that: The vibration dust removal component (802) comprises a multi-stage filter plate (8021), an electromagnetic vibrator (8022) and a dust collection box (8023); The multi-stage filter plate (8021) is arranged on a side of the electric blind (703) close to the second air inlet (705), and a space is reserved between the multi-stage filter plate (8021) and the electric blind (703). The electromagnetic vibrator (8022) is arranged at the bottom of the multi-stage filter plate (8021) and the electric blind (703) through a pad (8024), and the multi-stage filter plate (8021) and the electric blind (703) are both connected to the electromagnetic vibrator (8022). The dust box (8023) is plugged between the multi-stage filter plate (8021), the electric blind (703) and the electromagnetic vibrator (8022).

9. A switch cabinet based on split heat dissipation duct and dynamic dust removal protection according to claim 8, characterized in that: The multi-stage filter plate (8021) comprises a primary filter cotton plate (80211) and an electrostatic dust removal plate (80212), and the primary filter cotton plate (80211) and the electrostatic dust removal plate (80212) are fitted and connected.

10. A control method for a switch cabinet based on a split heat dissipation duct and dynamic dust removal protection according to any one of claims 1 to 9, characterized in that: The steps include: A. Circulation heat dissipation treatment: When the switch cabinet is in operation, heat is generated inside the switch cabinet. At this time, the external circulation heat dissipation component (6) and the internal circulation heat dissipation component (7) are operated synchronously. The heat generated by the electrical device (4) is first directed by the heat conductive silicone pad (501) and the ceramic heat dissipation hole plate (502). Then, the centrifugal heat dissipation fan (602) is started. The centrifugal heat dissipation fan (602) quickly radiates the heat conducted by the ceramic heat dissipation hole plate (502) to the outside to reduce the temperature inside the switch cabinet body (1). At the same time, the electric shutter (703) and the axial flow air intake fan (704) are operated. The electric shutter (703) is opened. The axial flow air intake fan (704) draws in external cold air from the second air inlet (705) and the electric shutter (703). The air is then transported obliquely upward by the guide plate (706) to the inside of the switch cabinet body (1). Forced air cooling is performed on the inside of the switch cabinet body (1). A circulating heat dissipation air duct is formed to perform rapid circulating heat dissipation treatment on the switch cabinet. B. Dynamic dust removal: When the switch cabinet is subjected to circulating heat dissipation treatment, the waterproof breathable membrane plate (8012) filters the water vapor in the external cold air at the second air inlet (705), and at the same time, the multi-stage filter plate (8021) filters the dust in the external cold air, and the electromagnetic vibrator (8022) vibrates at a frequency of 5 times / day, each time for 10-20 seconds. The electromagnetic vibrator (8022) drives the multi-stage filter plate (8021) and the electric blinds (703) to vibrate, thereby vibrating the multi-stage filter plate (8021) and the electric blinds (703) to drop into the dust collection box (8023) for collection, thereby completing the dynamic dust removal treatment.

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