A cabinet and electrical equipment

Abstract

The application relates to a cabinet and an electrical equipment, wherein the cabinet comprises a cabinet body, a fan, a filter part, a dust cleaning part and a dust collecting part arranged in the cabinet body, at least one side of the air inlet and the air outlet of the fan is provided with the filter part; the dust cleaning part is used for cleaning the filter part, so that the dust filtered by the filter part is separated from the filter part, and the dust collecting part is used for collecting the dust separated from the filter part. The air in the cabinet body is disturbed by the fan to improve the heat dissipation performance in the cabinet body, and the self-cleaning effect of the air in the cabinet body is realized through the arrangement of the filter part, the dust cleaning part and the dust collecting part, so that the service life of the electronic device and the stability of the equipment are improved.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, specifically to a cabinet and electrical equipment. Background Technology

[0002] In electrical equipment, cabinets, as key devices that carry and protect internal electronic components, such as inverter cabinets, have high requirements for cleanliness and heat dissipation efficiency.

[0003] A server rack consists of a cabinet, inside which electronic components are housed. To ensure the normal operating temperature of these components, a fan is installed inside the rack. The fan circulates the air inside the rack to make the temperature uniform throughout the rack, reduce the probability of localized overheating, and improve heat dissipation efficiency.

[0004] However, during the maintenance of the cabinet, dust from the external environment may enter the cabinet. When the air inside the cabinet is disturbed by the fan, the dust that has entered the cabinet will be blown to various corners, causing electronic components to become dusty. This can lead to short circuits, burnout of electronic components, or dust covering the surface of electronic components, affecting heat dissipation efficiency and causing overheating of electronic components, thus affecting the service life of electronic components and the stability of the equipment. Utility Model Content

[0005] The purpose of this application is to provide a cabinet and electrical equipment that improves the heat dissipation performance of the cabinet by agitating the air inside the cabinet with a fan, and achieves a self-cleaning effect of the air inside the cabinet by setting up a filter section, a dust removal section and a dust collection section. This reduces the occurrence of faults such as short circuits and burnouts caused by dust on electronic components, or the occurrence of overheating of electronic components due to dust covering the surface of electronic components affecting heat dissipation efficiency, thereby improving the service life of electronic components and the stability of the equipment.

[0006] To solve the above-mentioned technical problems, this application provides a cabinet, including a cabinet body and a fan, a filter section, a dust removal section and a dust collection section disposed in the cabinet body. The filter section is provided on at least one side of the air inlet and air outlet of the fan. The dust removal section is used to clean the filter section so that the dust filtered by the filter section is separated from the filter section. The dust collection section is used to collect the dust separated from the filter section.

[0007] In some embodiments, the dust collection section includes a dust collection inlet, the dust collection inlet includes a first end and a second end, the first end is disposed toward the filter section, the second end is disposed away from the filter section, and the dust collection inlet gradually expands from the second end to the first end.

[0008] In some embodiments, the dust collection inlet is located below the filter section.

[0009] In some embodiments, the dust collection unit further includes a dust collection outlet, which is connected to the outside of the cabinet.

[0010] In some embodiments, the dust collection outlet is provided with a valve component.

[0011] In some embodiments, the bottom wall of the cabinet is provided with a support along the circumference, and the dust collection outlet protrudes outside the bottom wall.

[0012] In some embodiments, the dust removal section includes a driving member and a vibrating member, wherein the vibrating member is capable of vibrating the filter section under the driving action of the driving member.

[0013] In some embodiments, the filter section includes at least one of filter cotton and filter screen.

[0014] In some embodiments, the cabinet further includes a heat exchange section disposed within the cabinet body.

[0015] This application also provides an electrical device, including the cabinet described above.

[0016] The cabinet and electrical equipment provided in this application have the following technical advantages:

[0017] By agitating the air with a fan, the temperature uniformity of the space within the cabinet is improved, thereby enhancing heat dissipation. During the fan agitation process, the air inside the cabinet is filtered and cleaned by the filtration unit, improving the cleanliness of the cabinet. The dust removal and collection units can also clean the filtration unit, achieving self-cleaning of the air inside the cabinet. This improves the filtration effect of the filtration unit and enhances the cleanliness of the cabinet, thereby reducing the probability of short circuits, electronic component burnout, and other malfunctions. It also reduces the probability of electronic components overheating due to dust covering their surfaces, which affects heat dissipation efficiency. This improves the stability and lifespan of electronic components, ultimately enhancing equipment reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the cabinet provided in the embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the cabinet's valve components in the closed state;

[0020] Figure 3 This is a schematic diagram of the cabinet's valve components in the open state;

[0021] Figure 4 This is a schematic diagram of the internal structure of the cabinet, including the heat exchange section.

[0022] Appendix Figures 1-4 The reference numerals in the attached figures are explained as follows:

[0023] 1. Cabinet body; 11. Inner cavity; 12. Top wall; 13. Bottom wall; 14. Support frame;

[0024] 2 fans, 21 air inlet, 22 air outlet;

[0025] 3. Filter section;

[0026] 4. Dust removal section; 41. Driving component; 42. Vibrating component;

[0027] 5 Dust collection section, 51 Dust collection inlet, 511 First end, 512 Second end, 52 Dust collection outlet, 53 Dust collection pipeline, 54 Valve component;

[0028] 6. Heat exchange section. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In electrical equipment, cabinets are key devices that carry and protect internal electronic components, such as inverter cabinets. They contain precision components and have high requirements for cleanliness and heat dissipation efficiency.

[0031] This application provides a cabinet that can improve internal heat dissipation efficiency, cleanliness, and the operational stability and equipment reliability of electronic components within the cabinet.

[0032] The structure of the cabinet is as follows Figure 1 and Figure 2 As shown, the cabinet includes a cabinet body 1. To make it easier to see the internal structure of the cabinet body 1, part of the side wall of the cabinet body 1 is hidden. The cabinet also includes a fan 2 installed inside the cabinet body 1. The fan 2 includes an air inlet 21 and an air outlet 22. The gas inside the cabinet body 1 enters through the air inlet 21 and is discharged through the air outlet 22, thereby disturbing the gas inside the cabinet body 1 and enabling the gas inside the cabinet body 1 to circulate. This improves the temperature uniformity of the space and reduces the possibility of damage to electronic components due to excessively high local temperatures inside the cabinet body 1.

[0033] Fan 2 improves the heat dissipation of electronic components by agitating and increasing the temperature uniformity of various parts of cabinet 1, reducing the risk of burnout due to overheating of some electronic components. Furthermore, since fan 2 is located inside cabinet 1, it agitates the air inside cabinet 1, eliminating the need to introduce external cold air for heat dissipation, thus preventing external dust from entering and improving the cleanliness of cabinet 1.

[0034] However, during maintenance and other processes, cabinet 1 needs to be opened, and external dust may enter the interior of cabinet 1. When the air inside cabinet 1 is disturbed by fan 2, the dust inside cabinet 1 will be blown to various corners, causing electronic components to become dusty. This can lead to short circuits, burnout of electronic components, or dust covering the surface of electronic components, affecting heat dissipation efficiency and causing overheating of electronic components, thus affecting the service life of electronic components and the reliability of the equipment.

[0035] The cabinet provided in this embodiment also includes a filter section 3 disposed within the cabinet body 1. At least one side of the air inlet 21 and air outlet 22 of the fan 2 is provided with the filter section 3. Specifically, the filter section 3 can be disposed on the air inlet 21 side of the fan 2, and the filter section 3 can filter the gas entering the fan 2; or it can be as follows... Figure 2 As shown, a filter section 3 is provided on the air outlet 22 side of the fan 2, which can filter the gas discharged by the fan 2; or, the air inlet 21 side and the air outlet 22 side of the fan 2 can be provided with filter sections 3 respectively, so that the gas entering the fan 21 and the gas exiting the fan 2 are filtered through the filter section 3, thereby achieving the filtration and cleaning of the gas in the cabinet 1 during the turbulence process of the fan 2, which improves the working stability of the electronic components in the cabinet 1 and reduces the probability of damage to electronic components or poor heat dissipation due to dust.

[0036] The cabinet also includes a dust removal section 4 and a dust collection section 5 located inside the cabinet 1. The dust removal section 4 can act on the filter section 3 and clean the filter section 3, so that the dust filtered by the filter section 3 is separated from the filter section 3. The dust collection section 5 is used to collect the dust separated from the filter section 3, thereby achieving the cleaning of the filter section 3.

[0037] The cabinet provided in this embodiment improves the temperature uniformity of various spaces within the cabinet 1 by agitating the air with fan 2, thereby enhancing the heat dissipation effect. During the agitation process of fan 2, the air inside the cabinet 1 is filtered and cleaned by filter 3, improving the cleanliness of the cabinet 1. The filter 3 can also be cleaned by dust removal section 4 and dust collection section 5 to achieve self-cleaning of the air inside the cabinet, improving the filtration effect of filter 3 and enhancing the cleanliness of the cabinet 1. This reduces the probability of faults such as short circuits and electronic component burnout, and reduces the probability of electronic components overheating due to dust covering the surface of electronic components, which affects the heat dissipation efficiency of electronic components. This improves the stability and service life of electronic components, thereby enhancing the reliability of the equipment.

[0038] like Figure 2 and Figure 3As shown, the dust collection unit 5 includes a dust collection inlet 51, which includes a first end 511 and a second end 512. The first end 511 is disposed on the side facing the filter unit 3, and the second end 512 is disposed on the side away from the filter unit 3. The dust collection inlet 51 gradually widens from the second end 512 to the first end 511. The cross-section of the dust collection inlet 51 is similar to a trumpet-shaped structure, with the first end 511 being the larger end and the second end 512 being the smaller end. The first end 511 is disposed on the side facing the filter unit 3, which can increase the dust collection area without changing the overall volume of the dust collection unit 5, making it easier to collect dust that has detached from the surface of the filter unit 3 into the dust collection unit 5, thereby improving the dust collection effect and thus improving the cleaning effect on the gas inside the cabinet 1.

[0039] like Figure 2 and Figure 3 As shown, the dust collection inlet 51 is located below the filter section 3. With this configuration, after the dust separates from the filter section 3, it can fall to the dust collection inlet 51 under its own gravity without the need for external driving force, which simplifies the overall structure and reduces costs.

[0040] Of course, in this embodiment, the dust collection unit 5 can also be configured as a dust collection device with a fan 2. The dust collection device provides suction power through the fan 2 to draw in the gas mixed with dust near the filter unit 3 and filter this gas. In this case, there is no restriction on the location of the dust collection inlet 51, as long as it is close to the filter unit 3.

[0041] like Figure 2 and Figure 3 As shown, the dust collection unit 5 also includes a dust collection outlet 52. The dust collection inlet 51 and the dust collection outlet 52 are respectively located at both ends of the dust collection unit 5. The dust collection outlet 52 is connected to the outside of the cabinet 1 and is used to discharge the collected dust outside the cabinet 1.

[0042] Of course, in this embodiment, the dust collection part 5 may not be provided with a dust collection outlet 52. When it is necessary to open the cabinet 1 to perform maintenance or other operations on the electronic components inside the cabinet 1, the dust collection part 5 can be taken out and the dust in the dust collection part 5 can be poured out through the dust collection inlet 51. Alternatively, when a lot of dust has been collected in the dust collection part 5, the cabinet 1 can be opened and the dust in the dust collection part 5 can be poured out through the dust collection inlet 51.

[0043] When the dust collection unit 5 is equipped with a dust collection outlet 52 that communicates with the outside of the cabinet 1, the dust collection inlet 51 and the dust collection outlet 52 can be connected through the dust collection pipe 53. The structure is simple and can also simplify the dust cleaning operation of the dust collection unit 5, reduce the opening frequency of the cabinet 1, reduce the amount of dust entering the cabinet 1, and further improve the cleanliness of the cabinet 1.

[0044] like Figure 2 and Figure 3As shown, the dust collection outlet 52 is equipped with a valve component 54, which is used to open and close the dust collection outlet 52. Under normal conditions, the valve component 54 is in the position shown in the figure. Figure 2 In the closed state shown, when it is necessary to clean the dust in the dust collection section 5, the valve component 54 can be opened to the position shown. Figure 3 The state shown allows the dust collection outlet 52 to open, discharging the dust from the dust collection section 5. This arrangement facilitates the cleaning of the dust in the dust collection section 5.

[0045] When the dust in the dust collection section 5 reaches a certain amount, the valve component 54 can be opened. If the valve component 54 is integrated with a weight sensor, the amount of dust in the dust collection section 5 can be monitored by the weight sensor. When the amount of dust in the dust collection section 5 reaches a preset weight, the valve component 54 can be opened; or the valve component 54 can be opened synchronously when the dust cleaning section 4 is working; or the valve component 54 can be opened after the dust cleaning section 4 has performed a preset number of dust cleaning operations on the filter section 3; or the valve component 54 can be opened at preset intervals.

[0046] Since the fan 2 stops working when the valve component 54 is opened, and the dust collection section 5 has a certain length, external gas is unlikely to enter the cabinet 1 through the dust collection outlet 52 and dust collection pipe 53 when the valve component 54 is opened for dust cleaning, thus reducing the impact on the cleanliness of the cabinet 1. Alternatively, an auxiliary valve can be installed in the dust collection pipe 53. This auxiliary valve is located in the middle or upper part of the dust collection pipe 53 (on the side near the dust collection inlet 51). Under normal conditions, the auxiliary valve is in the open state and the valve component 54 is in the closed state. When the dust collection section 5 needs to be cleaned, the auxiliary valve closes and then the valve component 54 opens. At this time, the dust collection pipe 53 is not connected. After the dust cleaning is completed, the valve component 54 closes and the auxiliary valve opens, so that at least one of the valve component 54 and the auxiliary valve remains closed, and external gas will not enter the cabinet 1 through the dust collection section 5, thus reducing the impact on the cleanliness of the cabinet 1.

[0047] The valve component 54 can be an electric valve, which can be opened and closed by the system to reduce manual operation and improve the level of intelligent control. Of course, the valve component 54 can also be a manual valve, which can be opened and closed manually by the operator.

[0048] Alternatively, the dust collection outlet 52 may not require a valve component 54. Instead, a cover or plug can be used to seal the dust collection outlet 52, allowing it to be easily opened when cleaning the dust in the dust collection section 5 is needed. However, using a valve component 54 to open and close the dust collection outlet 52 simplifies the overall structure and facilitates operation.

[0049] Taking a filter section 3 installed on the air outlet 22 side of the fan 2 as an example, after dust enters the cabinet 1, its flow path within the cabinet 1 is as follows: Figure 3As shown by the middle arrow, the dust is blown to the outlet 22 by the strong negative pressure adsorption of the air inlet 21 of the fan 2. The dust is blown to the filter section 3 by the fan 2. The dust continuously adheres to the surface of the filter section 3. When the electrical equipment (such as the inverter) has been running for a certain period of time, the internal program can control the fan 2 to stop and start the dust removal section 4. The dust removal section 4 acts on the filter section 3 to make the dust attached to the filter section 3 detach from the filter section 3. The detached dust falls to the dust collection section 5 below under the action of gravity and enters the dust collection inlet 51 from the first end 511. Then it enters the dust collection pipe 53 of the dust collection section 5 from the second end 512. The valve component 54 of the dust collection outlet 52 is normally closed. When the valve component 54 is opened, the dust in the dust collection section 5 can be discharged from the cabinet 1 through the dust collection outlet 52.

[0050] like Figure 1 , Figure 2 and Figure 3 As shown, the bottom wall 13 of the cabinet 1 is provided with a bracket 14 along the circumference, and the dust collection outlet 52 is exposed outside the bottom wall 13. Of course, in this embodiment, the setting position of the dust collection outlet 52 is not limited. For example, it can also be exposed outside the side wall of the cabinet 1, and the dust collection outlet 52 is exposed outside the bottom wall 13 of the cabinet 1, so that the dust in the dust collection part 5 can fall to the dust collection outlet 52 under the action of gravity, thereby facilitating the discharge of internal dust and reducing the accumulation of internal dust.

[0051] The bracket 14 is used to provide support for the cabinet 1 from the bottom, so that the bottom wall 13 is raised to a certain height, which facilitates the setting of the dust collection outlet 52 and reduces the impact on dust discharge caused by the dust collection outlet 52 being blocked by other components (such as platforms, ground, etc.).

[0052] There are no restrictions on the placement of valve component 54, such as... Figure 2 and Figure 3 As shown, the electric valve can be installed outside the bottom wall 13 for easy maintenance, replacement, or it can be installed inside the cabinet 1.

[0053] like Figure 2 and Figure 3 As shown, the dust removal section 4 includes a driving member 41 and a vibrating member 42. The vibrating member 42 can vibrate the filter section 3 under the driving action of the driving member 41.

[0054] After the fan 2 stops running, the dust removal section 4 can perform a vibration operation on the filter section 3, so that the dust intercepted by the filter section 3 is separated from the filter section 3. The vibration member 42 can achieve the vibration of the filter section 3 by tapping it. In this case, when the filter section 3 is not vibrated, the vibration member 42 can be in contact with the filter section 3 or not in contact with the filter section 3, or the vibration member 42 can always be in contact with the filter section 3. The vibration can be achieved by driving the vibration member 42 through the drive section, and the filter section 3 can be vibrated. There is no limitation here.

[0055] The structure of the drive unit is not limited; it can be a vibration motor or a drive cylinder, with the piston rod of the drive cylinder connected to the vibrating component 42, etc.

[0056] Of course, in this embodiment, the dust removal part 4 can also be configured to include a drive member 41 and a cleaning brush. The drive member 41 drives the cleaning brush to clean the surface of the filter part 3, so that the dust intercepted by the filter part 3 is separated from the filter part 3. In this case, the drive member 41 can be a hydraulic cylinder or a motor screw assembly, etc.

[0057] In this embodiment, the filter section 3 may include at least one of filter cotton and filter screen. The filter section 3 may include filter cotton and filter screen. The filter cotton filters dust in the gas and has a good filtration effect. The filter screen can be used to provide support for the filter cotton, enhance the structural strength of the filter section 3, facilitate the cleaning of the filter section 3 by the dust removal section 4, and extend the service life of the filter section 3.

[0058] The filter section 3 may also include filter cotton but not filter screen. In this case, the filter section 3 may also include a frame to support the filter cotton. The frame may be a filter plate, frame or other structure. The filter section 3 may also include filter screen but not filter cotton. The mesh size of the filter screen can be set according to the cleanliness requirements inside the cabinet 1. This setting can simplify the overall structure.

[0059] The cabinet may also include a heat exchange section 6 located inside the cabinet 1. A heat exchange medium flows inside the heat exchange section 6 to cool the gas inside the cabinet 1. The fan 2 drives the gas to flow inside the cabinet 1. The gas exchanges heat with the heat exchange medium through the heat exchange section 6 to achieve heat dissipation and improve the heat dissipation effect inside the cabinet 1.

[0060] The structure and location of the heat exchange section 6 are not limited and can be set according to actual conditions. For example, the heat exchange section 6 can be set in such a way as... Figure 4The air inlet 21 side of the fan 2 shown can also be located on the air outlet 22 side. If the heat exchange section 6 is located on the air inlet 21 side, and a filter section 3 is also provided on the air inlet 21 side, then the filter section 3 is located between the heat exchange section 6 and the fan 2. If the heat exchange section 6 is located on the air outlet 22 side, and a filter section 3 is also provided on the air outlet 22 side, then the filter section 3 is located between the heat exchange section 6 and the fan 2. There can also be two or more fans 2, with the heat exchange section 6 located between two fans 2, and at least one side of the air inlet 21 and air outlet 22 of each fan 2 is provided with a filter section 3. Furthermore, the surface of the heat exchange section 6 can also be provided with heat exchange fins to increase the contact area with the gas and improve the heat exchange effect.

[0061] The heat exchange section 6 is connected to the heat exchange mechanism located outside the cabinet 1. The heat exchange section 6 and the heat exchange mechanism form a medium circuit. When the medium passes through the heat exchange section 6, it can exchange heat with the gas inside the cabinet 1. The heat exchange mechanism can cool the medium, such as by air cooling or electric cooling.

[0062] In this embodiment, the fan 2, filter section 3, dust removal section 4, dust collection section 5, and heat exchange section 6 are located inside the cabinet 1 and can be fixed to the inner wall of the cabinet 1. Figure 2 , Figure 3 and Figure 4 In the illustrated embodiment, the fan 2, filter section 3, dust removal section 4, and heat exchange section 6 are all fixed to the top wall 12 of the cabinet 1. Alternatively, they can be fixed to the side wall or bottom wall 13, depending on the internal structure of the cabinet 1. The dust collection section 5 is located below the filter section 3 and can be fixed to the side wall or bottom wall 13 of the cabinet 1. The method of fixing each component to the inner wall of the cabinet 1 is not limited; it can be fixed using fasteners or snap-fit ​​mechanisms.

[0063] This application embodiment also provides an electrical device, which includes the cabinet as described above. The electrical device can be a photovoltaic inverter, an energy storage converter, etc. The electrical device may also include a enclosure, in which the cabinet can be located and form an independent area. Alternatively, the cabinet and the enclosure can be arranged side by side. The cabinet encloses an independent area, and the enclosure may be provided with other ventilation openings that communicate with the outside.

[0064] The side walls of the enclosure can be equipped with ventilation openings, allowing external cool air to pass through the enclosure and carry away the heat generated by the electronic components, thus achieving heat dissipation. Filters can also be installed at the ventilation openings on the side walls of the enclosure to improve the cleanliness of the enclosure.

[0065] When the cabinet is located inside the enclosure, the dust collection outlet 52 of the dust collection unit 5 can extend outside the enclosure, or a storage space can be set inside the enclosure to discharge the dust discharged from the dust collection outlet 52 into the storage space, and then the storage space inside the enclosure can be cleaned.

[0066] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0068] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A server rack, characterized in that, Includes a cabinet (1) and a fan (2), a filter (3), a dust removal part (4) and a dust collection part (5) provided in the cabinet (1). The filter (3) is provided on at least one side of the air inlet (21) and the air outlet (22) of the fan (2). The dust removal section (4) is used to clean the filter section (3) so that the dust filtered by the filter section (3) is separated from the filter section (3), and the dust collection section (5) is used to collect the dust separated from the filter section (3).

2. The cabinet according to claim 1, characterized in that, The dust collection section (5) includes a dust collection inlet (51), which includes a first end (511) and a second end (512). The first end (511) is disposed toward the filter section (3), and the second end (512) is disposed away from the filter section (3). The dust collection inlet (51) gradually expands from the second end (512) toward the first end (511).

3. The cabinet according to claim 2, characterized in that, The dust collection inlet (51) is located below the filter section (3).

4. The cabinet according to any one of claims 1-3, characterized in that, The dust collection unit (5) also includes a dust collection outlet (52), which is connected to the outside of the cabinet (1).

5. The cabinet according to claim 4, characterized in that, The dust collection outlet (52) is equipped with a valve component (54).

6. The cabinet according to claim 4, characterized in that, The bottom wall (13) of the cabinet (1) is provided with a bracket (14) along the circumference, and the dust collection outlet (52) is exposed outside the bottom wall (13).

7. The cabinet according to any one of claims 1-3, characterized in that, The dust removal section (4) includes a driving member (41) and a vibrating member (42), and the vibrating member (42) can vibrate the filter section (3) under the driving action of the driving member (41).

8. The cabinet according to any one of claims 1-3, characterized in that, The filter section (3) includes at least one of filter cotton and filter screen.

9. The cabinet according to any one of claims 1-3, characterized in that, The cabinet also includes a heat exchange section (6) located inside the cabinet body (1).

10. An electrical device, characterized in that, Includes the cabinet as described in any one of claims 1-9.

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