Power cabinet with dustproof function

Abstract

The invention discloses an electric power cabinet with a dustproof function, and relates to the field of electric power cabinets, the electric power cabinet comprises an electric power cabinet body, an upper air box and a lower air box, the upper air box is arranged at the upper end of the electric power cabinet body, and the upper air box is internally provided with a power mechanism for providing wind power for the interior of the electric power cabinet body and a first filter assembly; the upper air box is arranged at the lower end of the power cabinet body, and a second filtering assembly for filtering hot air discharged from the power cabinet body is arranged in the lower air box. The inclined surface is arranged on the upper surface of the filtering cotton block, the position, close to the dust removal hole, of the inclined surface inclines downwards, impurities filtered by the filtering cotton block can be collected around the inclined surface along the surface of the inclined surface, and therefore the wind power filtering effect of the inclined surface is not affected; when the electromagnetic valve is opened, air enters the filtering air bellow and then blows impurities collected around the inclined plane out of the dust removal holes, the purpose of automatically discharging the impurities is achieved, manual cleaning is avoided, and the practicability is high.

Description

Technical Field

[0001] The present invention relates to the field of power cabinets, and in particular to a power cabinet with a dustproof function. Background Art

[0002] Power cabinets, as crucial equipment in power systems, are widely used in substations, distribution rooms, and other locations to control and protect power lines and equipment. Power cabinets generate heat during operation, requiring excellent heat dissipation to ensure proper operation. Furthermore, the electrical components within power cabinets are sensitive to impurities such as dust. Dust accumulation can cause short circuits, malfunctions, or even damage, so power cabinets must also be dustproof.

[0003] Traditional power cabinets typically use natural or forced ventilation for heat dissipation. However, natural ventilation cannot effectively control the flow and quality of air entering the cabinet, easily allowing dust to enter. While forced ventilation improves heat dissipation efficiency, it also accelerates dust intrusion, increasing cleaning frequency and maintenance costs. Existing technologies often struggle to balance heat dissipation and dust prevention, limiting the lifespan and operational stability of the power cabinet.

[0004] Therefore, it is necessary to propose a power cabinet with dustproof function to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an electric cabinet with dustproof function, in which wind blows through electrical components to achieve heat dissipation, and can blow out floating dust on the surface of electrical components and enter the lower air box through ventilation holes to achieve dust removal.

[0006] To achieve the above object, the present invention provides the following technical solution: a power cabinet with dustproof function, comprising:

[0007] A power cabinet body, wherein a support plate is provided inside the power cabinet body, the support plate has ventilation holes, and the electrical components inside the power cabinet body are mounted on the upper surface of the support plate;

[0008] An upper wind box is provided at the upper end of the power cabinet body, and a power mechanism and a first filter assembly are provided inside the upper wind box for providing wind power to the interior of the power cabinet body;

[0009] The lower wind box is provided at the lower end of the power cabinet body, and a second filter assembly for filtering the hot air discharged from the power cabinet body is provided inside the lower wind box;

[0010] The power mechanism includes an electric fan arranged in an upper air box, and a filter air box is arranged below the upper air box;

[0011] The first filter assembly includes a filter cotton block, which is arranged in a filter bellows. The upper surface of the filter cotton block has an inclined surface. The filter bellows is provided with dust removal holes around the filter bellows, and a solenoid valve is provided in the dust removal hole.

[0012] The second filter assembly includes a filter cotton plate, and a plurality of the filter cotton plates are provided. The plurality of filter cotton plates are distributed vertically and at equal distances.

[0013] Preferably, air inlet holes are provided around the upper air box, the air inlet holes are connected to the interior of the upper air box, and the air inlet holes are located above the dust removal holes.

[0014] Preferably, both the upper and lower surfaces of the filter bellows are ventilated.

[0015] Preferably, the electric fans are provided in several groups.

[0016] Preferably, the inclined surface is inclined downward near the dust removal hole.

[0017] Preferably, a filter air box is provided inside the lower air box, the upper surface of the filter air box is ventilated, and a plurality of filter cotton plates are installed inside the filter air box.

[0018] Preferably, a buffer air cavity is provided on both the left and right sides of the filter air box, an air outlet is provided at one end of the buffer air cavity away from the filter air box, and the air outlet is communicated with the outside of the lower air box.

[0019] Preferably, the filter cotton plate is a plate-like structure with back-and-forth folds.

[0020] Preferably, an upper base plate is connected above the plurality of filter cotton plates, and an air slot is provided on the upper base plate for allowing wind to enter between adjacent filter cotton plates.

[0021] Preferably, an electric push rod is connected to the inner wall of the upper end of the filter air box, and the lower end of the electric push rod is fixedly connected to the upper surface of the upper base plate.

[0022] Technical effects and advantages of the present invention:

[0023] 1. The upper surface of the filter cotton block is provided with an inclined surface, which is inclined downward near the dust removal hole. The impurities filtered by the filter cotton block can be collected along the surface of the inclined surface and concentrated around the inclined surface, thus not affecting the filtering effect of the inclined surface on the wind force;

[0024] 2. When the solenoid valve is opened, the wind enters the filter bellows and blows out the impurities collected around the inclined surface from the dust removal holes first, achieving the purpose of automatically discharging the impurities, eliminating the need for manual cleaning and being highly practical.

[0025] 3. The wind is evenly distributed between adjacent filter cotton boards, thereby increasing the filtration area within a limited volume, extending the service life of the filter cotton boards and improving the wind filtering effect. Since the filter cotton boards are distributed vertically, after the filter cotton boards filter out the floating dust in the wind, the floating dust can naturally fall to the bottom of the filter air box, and is not easy to adhere to the surface of the filter cotton boards in large quantities and affect the ventilation efficiency of the filter cotton boards;

[0026] 4. The electric push rod can drive the upper base plate to rise and fall, thereby achieving the effect of expanding or compressing the filter cotton board, thereby further removing the dust attached to the surface of the filter cotton board, eliminating manual cleaning, and taking into account both heat dissipation and dust removal;

[0027] 5. In the present invention, the air is forced into the interior of the power cabinet body through the power mechanism inside the upper air box, which can reduce the clogging of the filter cotton block and the filter cotton plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a power cabinet with dustproof function according to the present invention.

[0029] Figure 2 This is a cross-sectional view of a power cabinet with dustproof function according to the present invention.

[0030] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure in the middle.

[0031] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0032] In the figure: 1. Power cabinet body; 2. Support plate; 3. Ventilation hole; 4. Upper bellows; 5. Lower bellows; 6. Internal air inlet mesh plate; 7. Filter cotton block; 8. Inclined surface; 9. Electric fan; 10. Solenoid valve; 11. Air inlet hole; 12. Dust removal hole; 13. Air outlet hole; 14. Buffer air chamber; 15. Filter cotton plate; 16. Upper base plate; 17. Air trough; 18. Electric push rod; 19. Filter air box; 20. Filter bellows. DETAILED DESCRIPTION

[0033] In existing technologies, the heat dissipation and dust prevention functions of power cabinets are usually designed separately. Heat dissipation mainly relies on natural ventilation or forced ventilation, while dust prevention relies on simple filters or filter cotton. However, this design has many problems:

[0034] 1. The contradiction between heat dissipation and dust prevention: Natural ventilation cannot effectively control the air flow and quality entering the power cabinet, which easily leads to dust entering the cabinet. Although forced ventilation can improve heat dissipation efficiency, it also accelerates the entry of dust, increasing the cleaning frequency and maintenance costs.

[0035] 2. Limitations of the filter device: Existing filter screens or filter cotton are prone to clogging after a period of use and require frequent replacement or cleaning. Moreover, traditional filter devices cannot achieve automatic cleaning. Once clogged, it will affect the heat dissipation and dust-proof performance of the power cabinet.

[0036] 3. Dust treatment problem If the dust generated on the surface of electrical components is not cleaned in time, it will accumulate inside the power cabinet, affecting the heat dissipation and operating performance of the equipment. In the existing technology, the cleaning of dust usually relies on manual operation, which is not only inefficient but also difficult to clean thoroughly.

[0037] 4. High maintenance cost: The filter device of a traditional power cabinet needs to be replaced or cleaned regularly, which increases the maintenance workload and cost. In particular, in some special environments, such as unmanned substations, manual cleaning is more difficult. To address the above problems, the present invention optimizes the design of the filter device, introduces an automatic cleaning function, and combines it with an efficient heat dissipation design to provide a power cabinet solution that takes both heat dissipation and dust prevention into consideration.

[0038] The present invention provides Figure 1-Figure 4 The power cabinet shown has a dust-proof function. Its structural design is ingenious, taking into account the heat dissipation and dust-proof functions of the power cabinet. At the same time, through a variety of innovative designs, it solves the problems of filter device blockage, difficulty in cleaning floating dust, and high manual maintenance costs that exist in traditional power cabinets during use.

[0039] The power cabinet body 1 is the core part of the entire equipment, and various electrical components are installed inside. In order to achieve heat dissipation and dust prevention functions, an upper bellows 4 and a lower bellows 5 are respectively provided at the upper and lower ends of the power cabinet body 1. The upper bellows 4 is provided with a power mechanism and a first filter component to provide wind force to the inside of the power cabinet body 1. The lower bellows 5 is provided with a second filter component to filter the hot air in the power cabinet body 1 when it is discharged, taking into account both the heat dissipation and dust prevention of the power cabinet body 1.

[0040] refer to Figure 1 As shown in the figure, a support plate 2 is provided inside the power cabinet body 1, and a ventilation hole 3 is provided on the support plate 2. The electrical components inside the power cabinet body 1 are mounted on the upper surface of the support plate 2. When wind is provided to the power cabinet body 1 from the upper air box 4, the wind blows through the electrical components to achieve the purpose of heat dissipation. At the same time, the wind can blow out the floating dust on the surface of the electrical components and enter the lower air box 5 through the ventilation hole 3 to achieve the purpose of dust removal.

[0041] An internal air inlet mesh plate 6 is provided above the lower air box 5 , and the internal air inlet mesh plate 6 allows floating dust and wind to enter the lower air box 5 .

[0042] refer to Figures 2 to 3As shown in , the upper air box 4 is one of the key parts of the present invention, and its internal structure is cleverly designed to achieve efficient air filtering and automatic cleaning functions.

[0043] Air inlet holes 11 and dust removal holes 12 are arranged around the upper and lower parts of the upper air box 4. The air inlet holes 11 are connected to the interior of the upper air box 4. A filter air box 20 is provided at the lower end of the upper air box 4. The upper and lower surfaces of the filter air box 20 are ventilated. The dust removal holes 12 are connected to the interior of the filter air box 20. An electromagnetic valve 10 is provided in the dust removal hole 12 for controlling the opening and closing of the dust removal hole 12.

[0044] It should be noted that the air inlet 11 is directly connected to the external environment, and insects, debris, etc. are easily introduced. Therefore, a protective net should be installed at the air inlet 11 to prevent foreign matter from entering the filter bellows 20 and affecting the filtering effect; the solenoid valve 10 is a key component for realizing the automatic cleaning function, and its performance directly affects the discharge effect of impurities. Regularly check the sealing and sensitivity of the solenoid valve 10 to ensure its normal operation. If the solenoid valve 10 is found to be faulty, it should be replaced in time.

[0045] An electric fan 9 is provided in the upper air box 4, and the electric fan 9 is provided in several groups. When the electric fan 9 is started, the wind outside the upper air box 4 can be sucked into the filter air box 20 through the air inlet 11. The wind is filtered and dust-removed by the filter cotton block 7 and then enters the interior of the power cabinet body 1 to dissipate heat and remove dust for the electrical components, thereby providing the electrical components with the cold air required for heat dissipation and dust removal.

[0046] Furthermore, a filter cotton block 7 is provided in the filter bellows 20; the filter cotton block 7 is one of the core components of the present invention, and a slope 8 is provided on the upper surface of the filter cotton block 7, which is inclined downward near the dust removal hole 12. This unique slope design is of great significance. When the wind passes through the filter cotton block 7, the filtered impurities can be collected along the surface of the slope 8 and concentrated around the slope 8. Since the inclination angle and position of the slope 8 are reasonably designed, these impurities will not affect the filtering effect of the slope 8, thereby ensuring the high-efficiency filtering performance of the filter cotton block 7.

[0047] When the solenoid valve 10 is opened, the wind enters the filter bellows 20 and will first blow the impurities collected around the inclined surface 8 out from the dust removal hole 12. This process achieves the purpose of automatically discharging impurities without the need for manual cleaning, greatly improving the practicality and maintenance convenience of the power cabinet.

[0048] However, the filter cotton block 7 will gradually lose its filtering effect after a long time. According to the actual use environment and the blockage condition of the filter cotton block 7, the filter cotton block 7 should be replaced regularly to ensure the filtering effect. It is generally recommended to check the status of the filter cotton block 7 every 13-16 months.

[0049] refer to Figure 2 and Figure 4 As shown in the figure, the lower air box 5 is another key part of the present invention, and its main function is to filter the hot air discharged from the power cabinet body 1. A filter air box 19 is arranged inside the lower air box 5, and the upper surface of the filter air box 19 is ventilated. A filter cotton board 15 is arranged in the filter air box 19. There are multiple filter cotton boards 15, and the multiple filter cotton boards 15 are distributed vertically and at equal distances. When the wind passes through the internal air inlet mesh plate 6 and enters the filter air box 19, the wind is evenly distributed between adjacent filter cotton boards 15, thereby increasing the filtering area within a limited volume, extending the service life of the filter cotton board 15 and improving the filtering effect on the wind.

[0050] Furthermore, a buffer air cavity 14 is provided on both sides of the filter air box 19. An air outlet 13 is provided at one end of the buffer air cavity 14 away from the filter air box 19. The air outlet 13 is connected to the outside of the lower air box 5. When the wind filtered by the filter cotton plate 15 enters the buffer air cavity 14, it can be discharged from the air outlet 13 to achieve the purpose of heat dissipation.

[0051] Furthermore, the filter panel 15 is a key component in the present invention for filtering dust from wind. Its pleated structure significantly increases the filtration area, thereby enhancing the filtration effect. Compared to traditional flat filter panels, the pleated filter panel 15 provides a larger filtration area within the same volume, effectively improving filtration efficiency.

[0052] Since the filter cotton board 15 is distributed vertically, when wind passes through the filter cotton board 15, the filtered floating dust can naturally fall to the bottom of the filter air box 19. This design avoids a large amount of floating dust adhering to the surface of the filter cotton board 15, thereby ensuring the ventilation efficiency of the filter cotton board 15 and further extending the service life of the filter cotton board 15. In addition, this structural design of the filter cotton board 15 can also effectively reduce the impact of wind on the filter cotton board 15 and improve the stability and reliability of the filter cotton board 15.

[0053] An important innovation of the present invention is to realize the automatic cleaning function of the filter device. Figure 4 As shown in the figure, an upper base plate 16 is connected to the top of the multiple filter cotton plates 15, and an air groove 17 is opened on the upper base plate 16 for wind to enter between adjacent filter cotton plates 15, and an electric push rod 18 is connected to the inner wall of the upper end of the filter air box 19. The lower end of the electric push rod 18 is fixedly connected to the upper surface of the upper base plate 16. When the electric push rod 18 is started, the electric push rod 18 can drive the upper base plate 16 to rise and fall, thereby achieving the effect of expanding or compressing the filter cotton plates 15. In this way, the dust attached to the surface of the filter cotton plates 15 can be further removed.

[0054] Specifically, when the filter cotton plate 15 is compressed, the floating dust attached to its surface will be squeezed and fall off, thereby achieving the purpose of automatic cleaning. This process does not require human intervention, greatly improving the maintenance convenience and operating efficiency of the power cabinet.

[0055] The present invention is based on the compressed air entering the interior of the power cabinet body 1 through the power mechanism inside the upper air box 4. This design can effectively reduce the clogging of the filter cotton block 7 and the filter cotton plate 15; specifically, when the electric fan 9 is started, the wind enters the filter air box 20 through the air inlet 11, and after being filtered and dust-removed by the filter cotton block 7, it enters the interior of the power cabinet body 1 with a certain pressure. This compressed air design can not only ensure a stable supply of wind power, but also effectively reduce the loss of wind power during the transmission process, thereby improving the heat dissipation efficiency.

[0056] At the same time, the compressed air design can also apply a certain amount of pressure to the filter cotton block 7 and the filter cotton plate 15 to prevent dust from accumulating in large quantities on the surface of the filter device, thereby reducing the occurrence of blockage. This design not only increases the service life of the filter device, but also ensures the heat dissipation and dustproof performance of the power cabinet.

[0057] Operation Process of the Power Cabinet During operation of the power cabinet of the present invention, efficient heat dissipation and dust prevention functions are achieved through the coordinated action of the upper bellows 4 and the lower bellows 5 .

[0058] The specific operation process is as follows:

[0059] Heat dissipation process: When the power cabinet is running, the electric fan 9 starts and draws external air into the filter air box 20 through the air inlet 11. After being filtered and dust-removed by the filter cotton block 7, the air enters the interior of the power cabinet body 1. The wind blows through the electrical components, taking away the heat and achieving the purpose of heat dissipation; the hot air after heat dissipation enters the lower air box 5 through the ventilation hole 3.

[0060] Dust prevention process: When the hot air enters the lower air box 5, it first passes through the internal air inlet mesh plate 6, and the floating dust also passes through the internal air inlet mesh plate 6. Then, the hot air enters the filter air box 19 and is further filtered by the filter cotton plate 15 to remove the floating dust in the hot air. The filtered hot air enters the buffer air cavity 14 and is discharged from the air outlet 13.

Claims

1. A power cabinet with dustproof function, characterized in that: include: A power cabinet body (1), wherein a support plate (2) is provided inside the power cabinet body (1), the support plate (2) has ventilation holes (3), and electrical components inside the power cabinet body (1) are mounted on the upper surface of the support plate (2); An upper wind box (4), the upper wind box (4) being arranged at the upper end of the power cabinet body (1), and a power mechanism and a first filter assembly for providing wind force to the interior of the power cabinet body (1) being arranged inside the upper wind box (4); A lower wind box (5), wherein the upper wind box (4) is arranged at the lower end of the power cabinet body (1), and a second filter component for filtering hot air discharged from the power cabinet body (1) is arranged inside the lower wind box (5); The power mechanism includes an electric fan (9) arranged in an upper wind box (4), and a filter wind box (20) is arranged below the upper wind box (4); The first filter assembly comprises a filter cotton block (7), the filter cotton block (7) is arranged in a filter bellows (20), the upper surface of the filter cotton block (7) has an inclined surface (8), a dust removal hole (12) is arranged around the filter bellows (20), and a solenoid valve (10) is arranged in the dust removal hole (12); The second filter assembly comprises a filter cotton plate (15), and a plurality of the filter cotton plates (15) are provided, and the plurality of filter cotton plates (15) are distributed vertically and at equal distances.

2. The power cabinet with dustproof function according to claim 1, characterized in that: An air inlet hole (11) is provided around the upper air box (4), the air inlet hole (11) is communicated with the interior of the upper air box (4), and the air inlet hole (11) is located above the dust removal hole (12).

3. The power cabinet with dustproof function according to claim 1, characterized in that: The upper and lower surfaces of the filter air box (20) are both ventilated.

4. The power cabinet with dustproof function according to claim 1, characterized in that: The electric fans (9) are provided in several groups.

5. The power cabinet with dustproof function according to claim 4, characterized in that: The inclined surface (8) is inclined downward near the dust removal hole (12).

6. The power cabinet with dustproof function according to claim 1, characterized in that: A filter air box (19) is provided inside the lower air box (5), the upper surface of the filter air box (19) is ventilated, and a plurality of filter cotton plates (15) are installed inside the filter air box (19).

7. The power cabinet with dustproof function according to claim 6, characterized in that: Buffer air cavities (14) are provided on both the left and right sides of the filter air box (19), and an air outlet (13) is provided at one end of the buffer air cavity (14) away from the filter air box (19), and the air outlet (13) is communicated with the outside of the lower air box (5).

8. The power cabinet with dustproof function according to claim 1, characterized in that: The filter cotton plate (15) is a plate-like structure with back-and-forth folds.

9. The power cabinet with dustproof function according to claim 7, characterized in that: An upper base plate (16) is connected above the plurality of filter cotton plates (15), and an air trough (17) is provided on the upper base plate (16) for wind to enter between adjacent filter cotton plates (15).

10. The power cabinet with dustproof function according to claim 9, characterized in that: The inner wall of the upper end of the filter air box (19) is connected to an electric push rod (18), and the lower end of the electric push rod (18) is fixedly connected to the upper surface of the upper base plate (16).

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