Heat dissipation and moisture-proof structure of electric meter box

Abstract

The present invention provides a heat dissipation and moisture-proof structure of an electric meter box, which belongs to a component of an electric quantity metering device, and includes a base shell and a dust separation shell; an air outlet pipe is arranged in the base shell, and a first air inlet chamber is formed between the air outlet pipe and the base shell; a dust separation mechanism is arranged in the dust separation shell, and a plurality of blades are arranged on the outer peripheral wall of the base frame, which can be blown and rotated by the external air flowing from the first air inlet chamber into the second air inlet chamber to generate centrifugal force, and the wet dust in the wet air is separated out; an active membrane for receiving the separated wet dust is arranged in the second cavity, and the active membrane is a double-layer structure, and is supported into a cylindrical shape by two upper and lower support rings arranged inside the active membrane, and the wet dust is thrown onto the inner part of the cylinder of the active membrane, so that the active membrane can be turned over in the vertical direction, and the wet dust is moved downward, and then cleaned. The present invention can automatically clean the wet dust centrifugally separated from the external air, and ensure the air treatment effect.

Description

Technical Field

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

[0002] For outdoor power cabinets, such as meter boxes, it's relatively easy to consider heat dissipation, dustproofing, or waterproofing alone, or both. However, for outdoor power cabinets that use forced air cooling, such as meter boxes, it's relatively difficult to simultaneously meet the heat dissipation, dustproofing, and waterproofing requirements.

[0003] In rainy or humid conditions, moisture and damp dust in the air of an electricity meter box are more likely to adversely affect the equipment inside the box. Existing technologies use a centrifugal separation mechanism (based on an air filter) to remove dust from the moist air entering the meter box. This removes damp dust from the outside air using the centrifugal force generated by the air's rotation. Simultaneously, dehumidification measures are implemented to ensure clean, dry air enters the meter box, squeezing out the hot air generated within. This effectively meets dust and moisture protection requirements and dissipates heat, thereby ensuring the proper operation of the equipment inside the meter box. However, existing centrifugal separation mechanisms typically throw the separated damp dust directly onto the sidewalls of the mechanism. Due to its high viscosity, damp dust accumulates on the sidewalls and is difficult to fall off. This results in an increasing accumulation of damp dust on the sidewalls, making the sidewalls less smooth and increasing the contact area between the air and the accumulated damp dust. This affects the air's rotational centrifugal speed, and thus the air treatment effect. Summary of the Invention

[0004] Based on this, it is necessary to address the problems existing in the current centrifugal separation mechanism of the meter box and provide a heat dissipation and moisture-proof structure for the 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:

[0006] A heat dissipation and moisture-proof structure for an electric meter box, comprising a base shell and a dust separation shell that are buckled together; a first cavity that is transparent from top to bottom is provided 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 provided 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 provided in the first cavity along the longitudinal axis L, and the upper pipe opening of the air outlet pipe is connected to the air outlet, and a first cavity is formed between the outer wall of the air outlet pipe and the inner wall of the base shell. An air inlet chamber; a second cavity that is transparent from top to bottom is provided in the dust separation shell along the longitudinal axis L, and a dust separation mechanism is provided in the second cavity; the dust separation mechanism includes a base frame provided at the upper part of the second cavity, a support platform provided at the lower part of the second cavity, a connecting shaft provided on the support platform and a filter cartridge provided on the connecting shaft; the base frame, the filter cartridge, the connecting shaft and the support platform are all provided 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 aligned with the bottom of the air outlet pipe. The surface is sealed and rotatably connected to the top surface of the filter cartridge; a plurality of blades are provided 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. The 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 moist 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 provided in the second cavity and on the outside of the filter cartridge, for receiving the moist dust separated from the air due to the centrifugal action; 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 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.

[0007] Preferably, a plurality of buckle notches are provided on the inner wall of the connection port of the base shell, and a plurality of buckles are correspondingly provided on the top outer wall of the dust separation shell.

[0008] Preferably, an induced draft fan is provided on the top of the base shell; the induced draft fan is arranged along the longitudinal axis L, and the air inlet end of the induced draft fan is connected to the air outlet.

[0009] Preferably, a filter layer filled with a desiccant is provided inside the induced draft fan.

[0010] 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 transparent gap is opened on the support platform to drain dust, and 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.

[0011] 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.

[0012] Preferably, a plurality of rollers are evenly arranged on the support ring.

[0013] Preferably, an annular boss is provided on the upper part 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 platform, the arc-shaped annular groove and the annular platform are arranged relative to each other up and down, and the movable membrane is arranged between the arc-shaped annular groove and the annular platform.

[0014] 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 supporting ring below.

[0015] 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.

[0016] The beneficial effects of the present invention are:

[0017] The base housing and dust separation housing of the present invention utilize a detachable mounting structure, facilitating installation and dust cleaning within the meter box. A dust separation mechanism is mounted within the dust separation housing for centrifugally separating moist dust from external air entering the base housing. The dust separation mechanism's base frame is provided with multiple blades on its outer peripheral wall. External air enters a first air inlet chamber within the base housing through an air inlet pipe, then passes through the blades and enters a second air inlet chamber within the dust separation housing. During this process, the base frame and blades are blown and rotated, generating centrifugal force that separates the moist dust from the moist air toward the inner wall of the dust separation housing. The air is then filtered through a filter cartridge and enters the air outlet chamber. Finally, clean air enters the meter box through the air outlet. The moist dust separated from the air due to centrifugal action is received by a 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 into 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

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 A schematic structural diagram of another perspective of the present invention;

[0020] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0021] Figure 4 is a side view of the present invention;

[0022] Figure 5 for Figure 4 Cross-sectional view at AA in the middle;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of point B in the middle;

[0024] in:

[0025] 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 duct; 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 duct; 500. Draft fan; 600. Desiccant; 700. Manual exhaust valve. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be 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 intended to limit the present invention.

[0027] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0028] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0029] 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 provided 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 provided at the top, bottom and side of the base shell 100, an air inlet 400 is connected to the outside of the air inlet 101, an air outlet 106 is provided in the first cavity along the longitudinal axis L, and the upper pipe opening of the air outlet 106 is connected to the air outlet 102, and a dust separator is formed between the outer wall of the air outlet 106 and the inner wall of the base shell 100. The first air inlet chamber 103 is formed; a second cavity that is transparent from top to bottom is provided in the dust separation shell 110 along the longitudinal axis L, and a dust separation mechanism is provided in the second cavity; the dust separation mechanism includes a base frame 210 provided at the upper part of the second cavity, a support platform 330 provided at the lower part of the second cavity, a connecting shaft 230 provided on the support platform 330 and a filter cartridge 250 provided on the connecting shaft 230; the base frame 210, the filter cartridge 250, the connecting shaft 230 and the support platform 330 are all provided 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 provided on the outer peripheral wall of the base frame 210; 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 form a second air inlet chamber 200, and 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 form an air outlet chamber 104. The 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 moist dust in the humid air. The air is separated toward the inner wall of the dust separation shell 110, and then 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 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 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.

[0030] 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 snap notches 105 are provided on the inner wall of the connection port of the base shell 100, and a plurality of snap notches 105 are correspondingly provided on the top outer wall of the dust separation shell 110. By twisting and engaging the snap notches 105 with the snap notches 111, a detachable connection between the base shell 100 and the dust separation shell 110 is achieved. Typically, the base shell 100 is installed in the meter box and is located at a suitable position below. The dust separation shell 110 can be set outside the meter box to facilitate cleaning of the separated dust. The air inlet end of the air inlet duct 400 is located outside the meter box, and a filter is provided in the port of this end.

[0031] An induced draft fan 500 is installed at the top of the base housing 100; 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. The dust separation mechanism then removes the damp dust in the external humid air through the centrifugal action. The clean air is then filtered by the filter cartridge 250. The induced draft fan 500 then draws the clean air from the air outlet cavity 104 into the meter box, squeezing out the hot air high in the meter box, thereby achieving cooling exchange of the air inside the meter box. The interior of the induced draft fan 500 is provided with a filter layer filled with desiccant 600, which can deeply dry the clean air entering the meter box.

[0032] The moist dust that is thrown out from the external air by centrifugal action adheres to the inner part of the movable membrane 300, gradually accumulates, and its gravity drives the movable membrane 300 in the inner part of the cylinder to move downward. 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 vertical flipping of the movable membrane 300, thereby transporting the moist dust downward.

[0033] Ball bearings with sealing rings are installed at the contact parts between the base frame 210 and the air outlet pipe 106 and the filter cartridge 250, respectively, 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.

[0034] The support ring 310 has a smooth surface. The movable membrane 300 can be made of materials such as nylon, polyester, or polyethylene. The inner surface of the movable membrane 300 that contacts the support ring 310 is smooth or coated with a friction-reducing coating to reduce the coefficient of friction between the movable membrane 300 and the support ring 310. Furthermore, materials such as nylon, polyester, or polyethylene are relatively soft and provide good flexibility, making it easier for the movable membrane 300 to flip on the support ring 310 under the action of force.

[0035] 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 is fixed with a fastening ring 340. The support platform 330 has a transparent notch that allows for the discharge of dust scraped from the movable membrane 300. The bottom of the dust separation housing 110 is funnel-shaped, and a manual drain valve 700 is installed at the bottom opening of the dust separation housing 110. When cleaning is required, the manual drain valve 700 can be opened to release dust, and the dust separation housing 110 can also be removed for cleaning.

[0036] like Figure 5 、 6 As shown, the dust separation housing 110 has an annular boss on its upper inner wall, with an arcuate annular groove at its bottom. 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 in a vertically opposed relationship, with the movable membrane 300 disposed between the arcuate annular groove and the annular platform. The arcuate annular groove and the annular platform effectively limit the upper and lower positions of the movable membrane 300, preventing it from excessive movement or deviating from its predetermined position, thereby helping to maintain structural stability.

[0037] like Figure 3 、 5 As shown in Figures 6 and 7, 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 membrane 300 in the inner part of the cylinder at the roller 320. Moist dust attached to the movable membrane 300 can be scraped off by the scraper 332, achieving self-circulating cleaning.

[0038] 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 .

[0039] like Figure 6 As shown, a plurality of rollers 320 are evenly arranged on the support ring 310 . The rollers 320 contact the movable membrane 300 , thereby further reducing the friction between the movable membrane 300 and the support ring 310 , thereby facilitating the up-and-down flipping movement of the movable membrane 300 .

[0040] like Figure 6 As shown, a plurality of first magnets 331 are evenly distributed on the annular platform, and a second magnet is disposed in the roller 320 on the support ring 310 below, which repels the first magnets 331. The arrangement of the first and second magnets with opposite polarities provides a certain upward force for the movable membrane 300, helping to reduce the weight of the movable membrane 300 and making it easier for the movable membrane 300 to flip up and down when subjected to the force of dust.

[0041] The technical features of the above embodiments can 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.

[0042] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended 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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