Rainproof and heat-dissipating distribution box

Abstract

The application discloses a rainproof and heat-dissipating distribution box, which comprises a box body, a top cover, a heat-dissipating fan and a water absorption layer. The upper end of the box body is open and is internally provided with a partition plate, the partition plate separates the box body into an upper air duct and a lower chamber, opposite sides of the upper air duct are provided with air outlets, and opposite sides of the lower chamber are provided with air inlets. The top cover is detachably sealed and covered on the upper end opening of the box body through bolts, the heat-dissipating fan is installed on the partition plate and is used for guiding the air in the lower chamber to the upper air duct, and the water absorption layer is arranged on the inner side of the air inlet and is used for filtering and adsorbing the moisture in the entering air. The distribution box of the application optimizes the heat-dissipating air flow path through the partition structure of the box body, forms independent air duct heat dissipation, effectively separates the exhaust air from the rainwater intrusion channel, and improves the heat-dissipating efficiency while enhancing the waterproof performance.

Description

Technical Field

[0001] This application relates to the field of power technology, and more specifically, to a rainproof and heat-dissipating distribution box. Background Technology

[0002] Hydropower stations are mostly built in humid and rainy areas, and their distribution boxes are constantly exposed to floodwaters, fog, floating debris, and high temperatures. Current technology uses unidirectional fans for cooling, but the exhaust path overlaps with the rainwater intrusion path, leading to an imbalance between cooling efficiency and waterproofing performance. Filter materials are mostly single-layer adsorption materials; once saturated with water, wind resistance increases sharply by 30%-50%, and during the flood season, insufficient ventilation can easily cause excessive temperature rise inside the box (>65℃). Furthermore, traditional filter structures are easily clogged by floating debris from hydropower stations, requiring manual cleaning up to twice a week, drastically increasing maintenance costs. There is an urgent need for a new type of distribution box to ensure the reliable operation of hydropower station electrical equipment under extreme conditions. Utility Model Content

[0003] This application provides a rainproof and heat-dissipating electrical distribution box, which includes a box body, a top cover, a cooling fan, and a water-absorbing layer. The box body has an opening at the top and a partition plate inside, dividing the box body into an upper air duct and a lower chamber. Air outlets are located on opposite sides of the upper air duct, and air inlets are located on opposite sides of the lower chamber. The top cover is detachably sealed to the opening at the top of the box body using bolts. The cooling fan is mounted on the partition plate and is used to transport air from the lower chamber to the upper air duct. The water-absorbing layer is located inside the air inlets and is used to filter and absorb moisture from the incoming air.

[0004] In some embodiments, rain shields are provided on the outer sides of both the air outlet and the air inlet to block rainwater.

[0005] In some embodiments, each of the air outlets and air inlets is provided with a quarter-circle arc-shaped plate with its opening facing downwards.

[0006] In some embodiments, a baffle plate is provided in the upper air duct to separate the two opposing air outlets, and the upper air duct is divided into two chambers, with a corresponding cooling fan provided in each chamber on the baffle plate.

[0007] In some embodiments, the top cover has a raised arc-shaped flow guide in the middle, the flow guide extends along the line connecting the two air outlets, and the upper end of the barrier plate is embedded in the inner cavity of the flow guide.

[0008] In some embodiments, the box body is provided with slots for the installation of the absorbent layer, the absorbent layer comprising an inner layer and an outer layer, the inner layer being filled with diatomaceous earth particles and the outer layer being chitosan-modified polyester nonwoven fabric.

[0009] In some embodiments, a removable activated carbon filter layer is provided between the water-absorbing layer and the air inlet.

[0010] In some embodiments, a temperature sensor is provided in the lower chamber.

[0011] In some embodiments, the enclosure further includes a door panel, one side of which is hinged to the corresponding side of the enclosure via a hinge shaft. The edge of the door panel is provided with a raised retaining edge, and the outer side of the enclosure is provided with a groove that matches the retaining edge. A sealing gasket is provided in the groove.

[0012] In some embodiments, an observation window is provided on the door panel.

[0013] The distribution box of this application optimizes the heat dissipation airflow path through the box body partition structure, forming an independent air duct for heat dissipation, effectively separating the exhaust air and rainwater intrusion channels, improving heat dissipation efficiency while enhancing waterproof performance; the water absorption layer of the air inlet specifically filters water mist, avoiding the problem of sudden increase in wind resistance after the adsorption layer becomes saturated, ensuring stable ventilation during the flood season, and solving the technical problems of excessive temperature rise and high operation and maintenance costs of the distribution box in the extreme environment of hydropower stations.

[0014] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0017] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the mid-section line AA.

[0018] Explanation of main component symbols: Distribution box 100, Box body 10, Partition plate 11, Upper air duct 12, Air outlet 121, Rain shield 122, Barrier plate 123, Lower chamber 13, Air inlet 131, Temperature sensor 14, Door panel 15, Edge retainer 151, Groove 16, Top cover 20, Air guide 21, Cooling fan 30, Water absorption layer 40, Inner layer 41, Outer layer 42. Detailed Implementation

[0019] The embodiments of this application will be further described below with reference to the accompanying drawings. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0020] Furthermore, the embodiments of this application described below in conjunction with the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting this application.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] This application provides a rainproof and heat-dissipating electrical distribution box 100, which includes a box body 10, a top cover 20, a cooling fan 30, and a water-absorbing layer 40. The box body 10 has an opening at the top and a partition plate 11 inside, which divides the box body 10 into an upper air duct 12 and a lower chamber 13. The upper air duct 12 has air outlets 121 on opposite sides, and the lower chamber 13 has air inlets 131 on opposite sides. The top cover 20 is detachably sealed to the upper opening of the box body 10 by bolts. The cooling fan 30 is mounted on the partition plate 11 and is used to transport air from the lower chamber 13 to the upper air duct 12. The water-absorbing layer 40 is disposed inside the air inlets 131 and is used to filter and absorb moisture from the incoming air.

[0023] The distribution box 100 of this application optimizes the heat dissipation airflow path through the partition structure of the box body 10, forming an independent air duct for heat dissipation on the upper side, effectively separating the exhaust air and rainwater intrusion channels, improving heat dissipation efficiency while enhancing waterproof performance; the water absorption layer 40 of the air inlet 131 specifically filters water mist, avoiding the problem of sudden increase in wind resistance after the adsorption layer is saturated, ensuring stable ventilation during the flood season, and solving the technical problems of excessive temperature rise and high operation and maintenance costs of the distribution box 100 in the extreme environment of hydropower stations.

[0024] Specifically, the enclosure 10 is rectangular in shape, with an opening at the top and a removable top cover 20. The top cover 20 is bolted to a flange on the edge of the enclosure 10 for sealing, and a rubber sealing ring is provided at the joint. Air outlets 121 and air inlets 131 are provided on both sides of the enclosure 10 in the width direction. The air outlets 121 are located at the top, and the air inlets 131 are located below the air outlets 121. In the embodiment of this application, there are multiple air inlets 131, evenly spaced on the sides of the enclosure 10. Heat dissipation is achieved through the coordinated action of the side air outlets 121 and the air inlets 131, utilizing the principle of rising hot air to accelerate the exhaust of heat from the top.

[0025] A partition plate 11 is horizontally welded to the upper part of the inner cavity of the housing 10, dividing the inner cavity into an upper air duct 12 and a lower chamber 13. The upper air duct 12 guides and exhausts hot air, while the lower chamber 13 is used to install various control switches and other electronic modules. The cooling fan 30 is an axial flow fan with an IP68 protection rating. The partition plate 11 has grooves corresponding to the shape of the cooling fan 30, and the cooling fan 30 is embedded in the grooves. The chamber design forms independent heat dissipation channels, preventing hot air from circulating and stagnating inside the housing.

[0026] The water-absorbing layer 40 covers the inside of the air inlet 131, covering the entire cross-section of the air inlet 131, and is used to absorb moisture in the air to slow down the aging of electronic components inside the housing 10. The inside of the housing 10 is provided with a slot for installing the water-absorbing layer 40 corresponding to the air inlet 131. The water-absorbing layer 40 has a multi-layer structure design.

[0027] Furthermore, both the air outlet 121 and the air inlet 131 are provided with rain shields 122 to prevent rainwater from entering. In the embodiments of this application, each air outlet 121 and air inlet 131 is provided with a quarter-circle arc-shaped plate with its opening facing downwards. Since the air outlet 121 is at the upper end, the air outlet 121 of the convex arc surface of the rain shield 122 faces the rain shield 132. The arc-shaped structure design can effectively prevent rainwater from entering, and at the same time can blow away dust that falls on the rain shield 122 to a certain extent.

[0028] Furthermore, a baffle plate 123 is installed inside the upper air duct 12, which separates and blocks the two opposing air outlets 121, dividing the upper air duct 12 into two independent air ducts, left and right. A corresponding cooling fan 30 is installed on the baffle plate 11 in each air duct. The dual air duct design balances the air pressure inside the box, avoids the formation of turbulent eddies in the middle, and improves heat dissipation efficiency.

[0029] Furthermore, the top cover 20 has a raised, arc-shaped airflow guide 21 in the middle, which extends along the line connecting the two air outlets 121. The upper end of the baffle plate 123 is embedded in the inner cavity of the airflow guide 21. The air outlet 121 is located at the end of the arc, ensuring that hot air diffuses along the arc surface and flows out quickly. The arc design expands the air outlet space, reduces local eddies, and improves heat dissipation efficiency. At the same time, the outward-protruding structure makes the rain shield 122 both structurally strong and lightweight, preventing water accumulation. The flat plate part can be used to place disassembled parts.

[0030] Furthermore, the housing 10 is equipped with slots for installing the absorbent layer 40. The absorbent layer 40 includes an inner layer 41 and an outer layer 42. The inner layer 41 is filled with diatomaceous earth particles, and the outer layer 42 is made of chitosan-modified polyester nonwoven fabric. The high specific surface area of ​​diatomaceous earth allows for long-term moisture adsorption, and its microporous structure helps regulate humidity balance. The diatomaceous earth can be dried and reused, reducing the frequency of material replacement. The chitosan-modified polyester nonwoven fabric can quickly adsorb external moisture, utilizing the hydrophilicity of chitosan to improve surface wetting efficiency, achieving initial moisture interception and diffusion, reducing the moisture absorption pressure of the inner layer 41, and preventing dust from clogging the pores of the diatomaceous earth.

[0031] A removable activated carbon filter layer 50 is provided between the water-absorbing layer 40 and the air inlet 131. The activated carbon filter layer 50 is fixed by spring clips, dovetail grooves, etc., and the filter density is graded (outer layer 42 for coarse filtration, inner layer 41 for fine filtration). The dual-layer filtration system intercepts dust, corrosive gases and odors, protecting the water-absorbing layer 40 from contamination.

[0032] Furthermore, a temperature sensor 14 is installed inside the lower chamber 13. The temperature sensor 14 is located in the middle of the partition plate 11 and is connected to a control module. The control module adjusts the speed of the cooling fan 30 according to the real-time temperature. When the temperature exceeds a threshold (e.g., 30℃), the cooling fan 30 is automatically started and its speed is adjusted. When the temperature is ≥50℃, the speed is increased to 3000-3500 rpm. The temperature sensor 14 can monitor the temperature inside the chamber in real time, achieving intelligent heat dissipation control and preventing overheating damage to the equipment.

[0033] Furthermore, the enclosure 10 also includes a door panel 15. One side of the door panel 15 is hinged to the enclosure 10 via a hinge shaft. The edge of the door panel 15 has a raised retaining edge 151, and the outer side of the enclosure 10 has a groove 16 that matches the retaining edge 151. A sealing gasket is installed in the groove 16. The retaining edge 151 and the groove 16 cooperate to form a labyrinth seal, improving the waterproof rating. An observation window 152 is provided on the door panel 15. The observation window 152 is made of tempered glass or polycarbonate (PC) material and is embedded in the door panel 15 through a sealing ring.

[0034] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] 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 at least one of the stated features. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.

[0036] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A rainproof and heat-dissipating distribution box, characterized in that, include: The housing has an opening at the top and a partition plate inside, which divides the housing into an upper air duct and a lower chamber. Air outlets are provided on opposite sides of the upper air duct, and air inlets are provided on opposite sides of the lower chamber. A top cover, which is detachably sealed to the upper opening of the housing by bolts; A cooling fan is installed on the partition plate and is used to transport air from the lower chamber to the upper air duct. A water-absorbing layer is disposed inside the air inlet and is used to filter and absorb moisture from the incoming air.

2. The distribution box according to claim 1, characterized in that, Both the air outlet and the air inlet are equipped with rain shields on their outer sides, which are used to block rainwater.

3. The distribution box according to claim 2, characterized in that, Each of the air outlets and air inlets is provided with a quarter-circle arc-shaped plate with its opening facing downwards.

4. The distribution box according to claim 2, characterized in that, A baffle plate is provided inside the upper air duct to separate the two opposite air outlets, dividing the upper air duct into two chambers. A corresponding cooling fan is provided in each chamber on the baffle plate.

5. The distribution box according to claim 4, characterized in that, The top cover has a raised arc-shaped flow guide in the middle, which extends along the line connecting the two air outlets, and the upper end of the barrier plate is embedded in the inner cavity of the flow guide.

6. The distribution box according to claim 1, characterized in that, The box is provided with slots for the installation of the absorbent layer. The absorbent layer includes an inner layer and an outer layer. The inner layer is filled with diatomaceous earth particles, and the outer layer is chitosan-modified polyester nonwoven fabric.

7. The distribution box according to claim 6, characterized in that, A removable activated carbon filter layer is provided between the water-absorbing layer and the air inlet.

8. The distribution box according to claim 1, characterized in that, A temperature sensor is installed in the lower chamber.

9. The distribution box according to claim 1, characterized in that, The enclosure also includes a door panel, one side of which is hinged to the corresponding side of the enclosure via a hinge shaft. The edge of the door panel is provided with a raised retaining edge, and the outer side of the enclosure is provided with a groove that matches the retaining edge. A sealing gasket is provided in the groove.

10. The distribution box according to claim 9, characterized in that, An observation window is provided on the door panel.

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