Heat dissipation moisture-proof structure of electric meter box

Abstract

The invention provides a heat dissipation moisture-proof structure of an electric meter box, which belongs to a component of electric quantity metering equipment and comprises a base shell and a dust separation shell, an air outlet pipe is arranged in the base shell, and a first air inlet cavity is formed between the air outlet pipe and the base shell; a dust separation mechanism is arranged in the dust separation shell, a plurality of blades are arranged on the peripheral wall of a base frame of the dust separation mechanism and can be blown to rotate by external air flowing into the second air inlet cavity from the first air inlet cavity to generate centrifugal force, wet dust in wet air is separated out, and a movable film for receiving the separated wet dust is arranged in the second cavity. The movable film is of a double-layer structure and is supported into a cylinder shape through an upper supporting ring and a lower supporting ring which are arranged in the movable film, and wet dust is thrown to the cylinder inner part of the movable film, so that the movable film can turn over in the vertical direction, the wet dust is moved downwards, and then cleaning is conducted. According to the invention, wet dust centrifugally separated from external air can be automatically cleaned, and the air treatment effect is ensured.

Description

Technical Field

[0001] The invention relates to a component of electric quantity metering equipment, in particular to a heat dissipation and moisture-proof structure of an electric meter box. Background Art

[0002] For outdoor power cabinets such as meter boxes, it is relatively easy to consider heat dissipation, dust prevention, and waterproofing alone or both. However, for outdoor power cabinets such as meter boxes that use forced air cooling, it is relatively difficult to meet the requirements of heat dissipation, dust prevention, and waterproofing at the same time.

[0003] For the electric meter box under rainy or humid working conditions, the moisture and damp dust contained in the air are more likely to have adverse effects on the internal equipment of the electric meter box. In the prior art, a centrifugal separation mechanism (the structural principle is based on the air source filter) is used to remove dust from the damp air entering the electric meter box. According to the centrifugal force generated by the rotation of the air, the damp dust in the external air is separated out. At the same time, dehumidification means are taken to obtain clean and dry air entering the electric meter box, and the hot air generated in the electric meter box is squeezed out, which can meet the requirements of dustproof, moisture-proof and heat dissipation, and thus ensure the normal operation of the internal equipment of the electric meter box. However, the existing centrifugal separation mechanism directly throws the separated damp dust onto the side wall of the mechanism. Since the damp dust has a large viscosity, it accumulates on the side wall of the mechanism and is not easy to fall, resulting in more and more accumulation of damp dust on the side wall of the mechanism, making the side wall of the mechanism not smooth and the contact area between the air and the damp dust accumulated on the side wall is getting larger and larger, which affects the rotation centrifugal speed of the air, and thus affects the air treatment effect. Summary of the invention

[0004] Based on this, it is necessary to provide a heat dissipation and moisture-proof structure for an electric meter box to address the problems existing in the current centrifugal separation mechanism of the electric meter box, which can automatically clean the moist dust centrifugally separated from the external air to ensure the air treatment effect.

[0005] The above purpose is achieved through the following technical solutions: A heat dissipation and moisture-proof structure of an electric meter box, comprising a base shell and a dust separation shell that are buckled together from top to bottom; a first cavity that is transparent from top to bottom is arranged in the base shell along a longitudinal axis L, and an air outlet, a connecting port and an air inlet that are connected to the first cavity are arranged at the top, bottom and side of the base shell respectively, an air inlet pipe is connected to the outside of the air inlet, an air outlet pipe is arranged in the first cavity along the longitudinal axis L, and an upper pipe opening of the air outlet pipe is connected to the air outlet, and a first air outlet is formed between the outer wall of the air outlet pipe and the inner wall of the base shell An air inlet cavity; a second cavity which is transparent from top to bottom is arranged in the dust separation shell along the longitudinal axis L, and a dust separation mechanism is arranged in the second cavity; the dust separation mechanism comprises a base frame arranged at the upper part of the second cavity, a support platform arranged at the lower part of the second cavity, a connecting shaft arranged on the support platform and a filter cartridge arranged on the connecting shaft; the base frame, the filter cartridge, the connecting shaft and the support platform are all arranged along the longitudinal axis L, and the base frame can rotate around the longitudinal axis L; the base frame is a cylindrical structure, and its top and bottom surfaces are respectively connected to the bottom of the air outlet pipe. The surface is sealed and rotatably connected with the top surface of the filter cartridge; a plurality of blades are arranged on the outer peripheral wall of the base frame; a second air inlet chamber is formed between the outer wall of the filter cartridge, the inner wall of the dust separation shell and the upper surface of the support platform, and an air outlet chamber is formed between the inner wall of the filter cartridge, the inner wall of the base frame and the inner wall of the air outlet pipe. External air first enters the first air inlet chamber from the air inlet pipe, and then enters the second air inlet chamber through the blades. In this process, the base frame and the blades are blown and rotated to generate centrifugal force, which separates the humid dust in the humid air toward the inner wall of the dust separation shell. The air then passes through the filter cartridge and enters the air outlet cavity; a cylindrical movable membrane made of flexible material is also sleeved in the second cavity and located on the outside of the filter cartridge, which is used to receive the moist dust separated from the air due to the centrifugal effect; the movable membrane is a double-layer structure, and is supported in a cylindrical shape by two upper and lower support rings arranged inside the movable membrane and connected by multiple connecting rods. The moist dust separated from the air is thrown onto the inner part of the movable membrane, so that the movable membrane can be flipped in the vertical direction to move the moist dust downward.

[0006] Preferably, a plurality of buckle notches are arranged on the inner wall of the connection port of the base shell, and a plurality of buckles are correspondingly arranged on the top outer wall of the dust separation shell.

[0007] Preferably, an induced draft fan is disposed on the top of the base shell; the induced draft fan is disposed along the longitudinal axis L, and an air inlet end of the induced draft fan is connected to the air outlet.

[0008] Preferably, a filter layer filled with a desiccant is provided inside the induced draft fan.

[0009] Preferably, the support platform is funnel-shaped, and the bottom end of the connecting shaft is inserted into the bottom opening of the support platform and connected using a fastening ring; a notch that is transparent from top to bottom is opened on the support platform to drain dust, the bottom of the dust separation shell is funnel-shaped, and a manual drain valve is installed at the bottom opening of the dust separation shell.

[0010] Preferably, the top end of the connecting shaft extends into the filter cartridge, and a storage barrel is provided on the top of the connecting shaft for storing desiccant.

[0011] Preferably, a plurality of rollers are evenly arranged on the support ring.

[0012] Preferably, an annular boss is provided on the upper portion of the inner wall of the dust separation shell, an arc-shaped annular groove is provided at the bottom of the annular boss, an annular platform is provided on the outer periphery of the upper surface of the support table, the arc-shaped annular groove and the annular platform are arranged opposite to each other in the upper and lower directions, and the movable membrane is arranged between the arc-shaped annular groove and the annular platform.

[0013] Preferably, a plurality of first magnets are evenly arranged on the annular platform, and a second magnet that repels the first magnet is arranged in the roller on the lower support ring.

[0014] Preferably, an annular scraper is provided on the upper surface of the support platform and located on the inner side of the annular platform, and the outer peripheral wall of the scraper is in close contact with the movable membrane of the inner part of the roller.

[0015] The beneficial effects of the present invention are: The base shell and the dust separation shell of the present invention adopt a detachable installation structure, which is convenient for installation and dust cleaning in the electric meter box; a dust separation mechanism is installed in the dust separation shell, which is used to centrifugally separate the moist dust in the external air entering the base shell. A plurality of blades are arranged on the outer peripheral wall of the base frame of the dust separation mechanism. The external air first enters the first air inlet cavity in the base shell from the air inlet pipe, and then enters the second air inlet cavity in the dust separation shell through the blades. In this process, the base frame and the blades are blown and rotated to generate centrifugal force, and the moist dust in the moist air is separated and discharged toward the inner wall of the dust separation shell. The air is then filtered by the filter cartridge and enters the air outlet cavity. Finally, the clean air enters the electric meter box from the air outlet. The moist dust separated from the air due to centrifugal action is received by the movable membrane arranged in the second cavity. The movable membrane is cylindrical and has a double-layer structure made of flexible material, and two upper and lower support rings connected by multiple connecting rods are arranged in the middle of the double-layer structure to support the movable membrane in a cylindrical shape. The moist dust separated from the air is thrown onto the inner part of the cylinder of the movable membrane, and when too much dust accumulates on the inner part of the cylinder of the movable membrane, it will cause the weight of the inner part and the outer part of the cylinder of the movable membrane to be inconsistent, and then the movable membrane will flip up and down under the action of the gravity of the dust, automatically moving the moist dust toward the support platform and cleaning it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 It is a schematic diagram of the explosion structure of the present invention; Figure 4 is a side view of the present invention; Figure 5 for Figure 4 Sectional view at AA in the middle; Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle; in: 100, base shell; 110, dust separation shell; 101, air inlet; 102, air outlet; 103, first air inlet chamber; 104, air outlet chamber; 105, buckle notch; 106, air outlet pipe; 111, buckle; 200, second air inlet chamber; 210, base frame; 220, blades; 230, connecting shaft; 240, storage barrel; 250, filter cartridge; 300, movable membrane; 310, support ring; 320, roller; 330, support platform; 340, fastening ring; 331, first magnet; 332, scraper; 400, air inlet pipe; 500, induced draft fan; 600, desiccant; 700, manual exhaust valve. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0019] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] like Figure 1-5As shown, the present invention provides a heat dissipation and moisture-proof structure of an electric meter box, comprising a base shell 100 and a dust separation shell 110 that are buckled together from top to bottom; a first cavity that is transparent from top to bottom is arranged in the base shell 100 along the longitudinal axis L, and an air outlet 102, a connecting port and an air inlet 101 that are connected to the first cavity are respectively arranged at the top, bottom and side of the base shell 100, an air inlet pipe 400 is connected to the outside of the air inlet 101, an air outlet pipe 106 is arranged in the first cavity along the longitudinal axis L, and the upper pipe opening of the air outlet pipe 106 is connected to the air outlet 102, and a gas barrier is formed between the outer wall of the air outlet pipe 106 and the inner wall of the base shell 100. The first air inlet chamber 103 is formed; a second cavity which is transparent from top to bottom is arranged in the dust separation housing 110 along the longitudinal axis L, and a dust separation mechanism is arranged in the second cavity; the dust separation mechanism includes a base frame 210 arranged at the upper part of the second cavity, a support platform 330 arranged at the lower part of the second cavity, a connecting shaft 230 arranged on the support platform 330, and a filter cartridge 250 arranged on the connecting shaft 230; the base frame 210, the filter cartridge 250, the connecting shaft 230 and the support platform 330 are all arranged along the longitudinal axis L, and the base frame 210 can rotate around the longitudinal axis L; the base frame 210 is a cylindrical structure, and its top and bottom surfaces are respectively connected to the air outlet The bottom surface of the tube 106 and the top surface of the filter cartridge 250 are sealed and rotatably connected; a plurality of blades 220 are arranged on the outer peripheral wall of the base frame 210; a second air inlet chamber 200 is formed between the outer wall of the filter cartridge 250, the inner wall of the dust separation shell 110 and the upper surface of the support platform 330, and an air outlet chamber 104 is formed between the inner wall of the filter cartridge 250, the inner wall of the base frame 210 and the inner wall of the air outlet pipe 106. External air first enters the first air inlet chamber 103 from the air inlet pipe 400, and then enters the second air inlet chamber 200 through the blades 220. In this process, the base frame 210 and the blades 220 are blown and rotated to generate centrifugal force, which removes the humid dust in the humid air. The moist dust is separated toward the inner wall of the dust separation shell 110, and then the air is filtered by the filter cartridge 250 and enters the air outlet chamber 104; a cylindrical movable membrane 300 made of flexible material is also provided in the second cavity and located on the outside of the filter cartridge 250, for receiving the moist dust separated from the air due to the centrifugal action; the movable membrane 300 is a double-layer structure, and is supported in a cylindrical shape by two upper and lower support rings 310 arranged inside it and connected by multiple connecting rods. The moist dust separated from the air is thrown onto the inner part of the movable membrane 300, so that the movable membrane 300 can be flipped in the vertical direction to move the moist dust downward.

[0021] The base housing 100 and the dust separation housing 110 are detachably connected. Figure 2 , 3As shown in Figures 5 and 6, a plurality of buckle notches 105 are provided on the inner wall of the connection port of the base shell 100, and a plurality of buckles 111 are correspondingly provided on the top outer wall of the dust separation shell 110. The base shell 100 and the dust separation shell 110 are detachably connected by twisting and engaging the buckle notches 105. Usually, the base shell 100 is installed in the meter box and is located at a suitable position below, and the dust separation shell 110 can be arranged outside the meter box to facilitate cleaning of the separated dust. The air inlet end of the air inlet pipe 400 is located outside the meter box, and a filter is arranged in the port of the end.

[0022] The top of the base housing 100 is provided with an induced draft fan 500; the induced draft fan 500 is arranged along the longitudinal axis L, and the air inlet end of the induced draft fan 500 is connected to the air outlet 102. The induced draft fan 500 is used to draw external air from the air inlet pipe 400 into the base housing 100, and then the humid dust in the external humid air is thrown out by the centrifugal action of the dust separation mechanism, and then the clean air is filtered by the filter cartridge 250, and the clean air is drawn out from the air outlet cavity 104 into the meter box by the induced draft fan 500, and then the hot air at a high position in the meter box is squeezed out, so as to realize the cooling exchange of the air in the meter box. The interior of the induced draft fan 500 is provided with a filter layer filled with a desiccant 600, and the filter layer can deeply dry the clean air entering the meter box.

[0023] The moist dust that is thrown out from the external air by the centrifugal action adheres to the inner part of the movable membrane 300, and gradually accumulates and will drive the movable membrane 300 in the inner part of the cylinder to move downward due to its gravity. When passing through the support platform 330, the moist dust will be scraped off the movable membrane 300, and at the same time, the movable membrane 300 outside the cylinder moves upward, realizing the flipping of the movable membrane 300 in the vertical direction, thereby transporting the moist dust downward.

[0024] Ball bearings with sealing rings are respectively installed at the contact parts between the base frame 210 and the air outlet pipe 106 and the filter cartridge 250, which can not only meet the sealing requirements but also provide low-friction rotation support for the base frame 210, so that the base frame 210 can rotate easily.

[0025] The surface of the support ring 310 is smooth. The movable membrane 300 can be made of materials such as nylon, polyester fiber or polyethylene, and its inner surface in contact with the support ring 310 is smooth or coated with a friction-reducing coating for smooth treatment to reduce the friction coefficient between the support ring 310. In addition, the texture of materials such as nylon, polyester fiber or polyethylene is relatively soft and can provide good flexibility, so that the movable membrane 300 is easier to flip on the support ring 310 under the action of force.

[0026] like Figure 3 , 5As shown, the support platform 330 is funnel-shaped, the bottom end of the connecting shaft 230 is inserted into the bottom opening of the support platform 330 and connected and fixed by a fastening ring 340; a transparent notch is provided on the support platform 330 to discharge the dust scraped off from the movable membrane 300, the bottom of the dust separation housing 110 is funnel-shaped, and a manual discharge valve 700 is installed at the bottom opening of the dust separation housing 110. When cleaning is required, the manual discharge valve 700 can be opened to release the dust, and the dust separation housing 110 can also be removed for cleaning.

[0027] like Figure 5 , 6 As shown, an annular boss is provided on the upper part of the inner wall of the dust separation housing 110, an arc-shaped annular groove is provided at the bottom of the annular boss, an annular platform is provided on the outer periphery of the upper surface of the support platform 330, the arc-shaped annular groove and the annular platform are arranged opposite to each other up and down, and the movable membrane 300 is arranged between the arc-shaped annular groove and the annular platform. The arc-shaped annular groove and the annular platform can effectively limit the upper and lower positions of the movable membrane 300, prevent the movable membrane 300 from excessively moving or deviating from the predetermined position, and help maintain the stability of the structure.

[0028] like Figure 3 , 5 As shown in FIG. 6 , an annular scraper 332 is provided on the upper surface of the support platform 330 and on the inner side of the annular platform, and the outer peripheral wall of the scraper 332 is in close contact with the movable film 300 in the inner part of the cylinder at the roller 320. The wet dust attached to the movable film 300 can be scraped off by the scraper 332 to achieve self-circulating cleaning.

[0029] like Figure 5 As shown, the top end of the connecting shaft 230 extends into the filter cartridge 250 , and a storage barrel 240 is provided on the top of the connecting shaft 230 for storing desiccant to dry the air in the air outlet cavity 104 .

[0030] like Figure 6 As shown, a plurality of rollers 320 are evenly arranged on the support ring 310 . The rollers 320 are in contact with the movable membrane 300 , so that the friction between the movable membrane 300 and the support ring 310 can be further reduced, so as to facilitate the up-and-down turning action of the movable membrane 300 .

[0031] like Figure 6 As shown, a plurality of first magnets 331 are evenly arranged on the annular platform, and a second magnet that repels the first magnet 331 is arranged in the roller 320 on the lower support ring 310. By arranging the first magnet 331 and the second magnet with opposite polarities, a certain upward force can be provided for the movable film 300, which helps to reduce the weight burden of the movable film 300, so that the movable film 300 is more likely to flip up and down when subjected to the force of dust.

[0032] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A heat dissipation and moisture-proof structure of an electric meter box, characterized in that: The invention comprises a base shell (100) and a dust separation shell (110) which are buckled together from top to bottom; a first cavity which is transparent from top to bottom is arranged in the base shell (100) along a longitudinal axis L, and an air outlet (102), a connecting port and an air inlet (101) which are connected to the first cavity are arranged at the top, bottom and side of the base shell (100), an air inlet pipe (400) is connected to the outside of the air inlet (101), an air outlet pipe (106) is arranged in the first cavity along the longitudinal axis L, and an upper pipe opening of the air outlet pipe (106) is connected to the air outlet (102), and a first air inlet cavity (103) is formed between the outer wall of the air outlet pipe (106) and the inner wall of the base shell (100); the dust separation shell (110) is connected to the outer wall of the air outlet pipe (106), and the dust separation shell (110) is connected to the outer wall of the air outlet pipe (106). A second cavity that is transparent from top to bottom is arranged in the dust separation housing (110) along the longitudinal axis L, and a dust separation mechanism is arranged in the second cavity; the dust separation mechanism comprises a base frame (210) arranged at the upper part of the second cavity, a support platform (330) arranged at the lower part of the second cavity, a connecting shaft (230) arranged on the support platform (330), and a filter cartridge (250) arranged on the connecting shaft (230); the base frame (210), the filter cartridge (250), the connecting shaft (230), and the support platform (330) are all arranged along the longitudinal axis L, and the base frame (210) can rotate around the longitudinal axis L; the base frame (210) is a cylindrical structure, and its top surface and bottom surface are respectively connected to the bottom surface of the air outlet pipe (106). The base frame (210) is rotatably connected to the top surface of the filter cartridge (250); a plurality of blades (220) are arranged on the outer peripheral wall of the base frame (210); a second air inlet chamber (200) is formed between the outer wall of the filter cartridge (250), the inner wall of the dust separation housing (110), and the upper surface of the support platform (330); an air outlet chamber (104) is formed between the inner wall of the filter cartridge (250), the inner wall of the base frame (210), and the inner wall of the air outlet pipe (106); external air first enters the first air inlet chamber (103) from the air inlet pipe (400), and then enters the second air inlet chamber (200) through the blades (220); during this process, the base frame (210) and the blades (220) are blown and rotated to generate centrifugal force, which removes the humid air. The moist dust is separated toward the inner wall of the dust separation housing (110), and the air is then filtered by the filter cartridge (250) and enters the air outlet chamber (104); a cylindrical movable membrane (300) made of a flexible material is also sleeved in the second chamber and located on the outside of the filter cartridge (250), for receiving the moist dust separated from the air due to centrifugal action; the movable membrane (300) is a double-layer structure, and is supported in a cylindrical shape by two upper and lower support rings (310) arranged inside the movable membrane and connected by a plurality of connecting rods; the moist dust separated from the air is thrown onto the inner part of the movable membrane (300), so that the movable membrane (300) can be turned over in the vertical direction to move the moist dust downward.

2. The heat dissipation and moisture-proof structure of the electric meter box according to claim 1, characterized in that: A plurality of buckle notches (105) are provided on the inner wall of the connection port of the base shell (100), and a plurality of buckles (111) are correspondingly provided on the top outer wall of the dust separation shell (110).

3. The heat dissipation and moisture-proof structure of the electric meter box according to claim 1, characterized in that: An induced draft fan (500) is arranged on the top of the base shell (100); the induced draft fan (500) is arranged along the longitudinal axis L, and an air inlet end of the induced draft fan (500) is connected to the air outlet (102).

4. The heat dissipation and moisture-proof structure of the electric meter box according to claim 3, characterized in that: A filter layer filled with a desiccant (600) is arranged inside the induced draft fan (500).

5. The heat dissipation and moisture-proof structure of the electric meter box according to claim 1, characterized in that: The support platform (330) is funnel-shaped, and the bottom end of the connecting shaft (230) is inserted into the bottom opening of the support platform (330) and connected using a fastening ring (340); a notch that is transparent from top to bottom is provided on the support platform (330) to discharge dust; the bottom of the dust separation housing (110) is funnel-shaped, and a manual discharge valve (700) is installed at the bottom opening of the dust separation housing (110).

6. The heat dissipation and moisture-proof structure of the electric meter box according to claim 1, characterized in that: The top end of the connecting shaft (230) extends into the filter cartridge (250), and a storage barrel (240) is provided at the top of the connecting shaft (230) for storing desiccant.

7. The heat dissipation and moisture-proof structure of the electric meter box according to claim 1, characterized in that: A plurality of rollers (320) are evenly arranged on the support ring (310).

8. The heat dissipation and moisture-proof structure of the electric meter box according to claim 7, characterized in that: An annular boss is provided on the upper portion of the inner wall of the dust separation housing (110), an arcuate annular groove is provided at the bottom of the annular boss, an annular platform is provided on the outer periphery of the upper surface of the support platform (330), the arcuate annular groove and the annular platform are arranged opposite to each other in the upper and lower directions, and the movable membrane (300) is arranged between the arcuate annular groove and the annular platform.

9. The heat dissipation and moisture-proof structure of the electric meter box according to claim 8, characterized in that: A plurality of first magnets (331) are evenly arranged on the annular platform, and a second magnet that repels the first magnets (331) is arranged in the roller (320) on the lower support ring (310).

10. The heat dissipation and moisture-proof structure of the electric meter box according to claim 9, characterized in that: An annular scraper (332) is provided on the upper surface of the support platform (330) and located on the inner side of the annular platform, and the outer peripheral wall of the scraper (332) is in close contact with the movable membrane (300) in the inner part of the cylinder at the roller (320).

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