Protective power distribution box for high altitude

Abstract

The utility model provides a kind of high altitude protective type distribution box, belong to distribution box technical field, including box, partition layer, dehumidification filter screen and exhaust pipe, box is equipped with accommodating cavity, partition layer is located in accommodating cavity, partition layer separates accommodating cavity into upper chamber and lower chamber, the middle part of partition layer is equipped with the vent hole for communicating upper chamber and lower chamber, a plurality of air inlet holes for air inlet are equipped on the side wall of lower chamber, dehumidification filter screen is located in vent hole, drying agent is equipped in dehumidification filter screen, for absorbing moisture in overcurrent air, exhaust pipe is located in the top of box, the air inlet end of exhaust pipe is communicated with upper chamber, exhaust fan is equipped in exhaust pipe, exhaust fan is equipped in exhaust pipe, the exhaust end of exhaust pipe is installed with check valve. The utility model provides a kind of high altitude protective type distribution box, solves the problem that distribution box is easily invaded by humid air in high altitude area.

Description

Technical Field

[0001] This utility model belongs to the field of distribution box technology, and more specifically, it relates to a protective distribution box for high altitude use. Background Technology

[0002] Distribution boxes are devices used to distribute power and protect electrical equipment. Because the electrical equipment inside generates a lot of heat during operation, distribution boxes are usually equipped with cooling devices to prevent overheating and damage. The cooling device in a typical distribution box is a cooling fan. The cooling fan creates negative pressure inside the distribution box, allowing cool outside air to enter through the air inlets and cool the electrical equipment. However, in high-altitude areas, the environment is unique. In the morning, there is often fog and humid air. When the cooling fan is operating, humid air can easily enter the distribution box, causing short circuits in the electrical equipment. At midday, the sun is intense, and solar heat radiation heats the outer walls of the distribution box, transferring a large amount of heat into the box. This heat is then combined with the heat generated by the electrical equipment, making it difficult for the cooling fan to dissipate heat quickly. Utility Model Content

[0003] The purpose of this utility model is to provide a protective distribution box for high altitudes, so as to solve the problem in the background art that distribution boxes in high-altitude areas are easily invaded by humid air.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a protective distribution box for high-altitude applications, comprising:

[0005] The housing has a receiving cavity inside;

[0006] A partition layer is disposed within the accommodating cavity, dividing the accommodating cavity into an upper chamber and a lower chamber. The upper chamber is used to house electrical equipment. The middle part of the partition layer has a ventilation hole connecting the upper chamber and the lower chamber. The side wall of the lower chamber is provided with multiple air inlets for air intake.

[0007] A dehumidifying filter is disposed inside the ventilation hole, and the dehumidifying filter contains a desiccant for absorbing moisture in the passing air;

[0008] An exhaust duct is located at the top of the housing. The air inlet of the exhaust duct is connected to the upper chamber. An exhaust fan is installed inside the exhaust duct, and a check valve is installed at the exhaust end of the exhaust duct.

[0009] In one possible implementation, the separation layer includes:

[0010] A support plate, which is laterally fixed to the circumferential sidewall of the accommodating cavity;

[0011] A partition is located above the support plate. The partition is inclined downward from the middle to the edge. The lower end of the partition is fixed to the support plate. A connecting sleeve is provided through the middle of the partition. The through hole in the middle of the connecting sleeve forms the ventilation hole.

[0012] In one possible implementation, the upper end of the connecting sleeve is provided with a flow guide cap, the flow guide cap is provided with a plurality of flow guide holes arranged vertically, the upper end surface of the flow guide cap is a convex surface, and the air outlet direction of the plurality of flow guide holes is distributed in a divergent manner.

[0013] In one possible implementation, the dehumidifying filter includes a support ring, with a support mesh fixed on both axial end faces of the support ring, forming a storage space for placing a desiccant between the support mesh and the support ring.

[0014] In one possible implementation, the support ring has multiple longitudinal stiffeners and multiple transverse stiffeners inside, and the multiple longitudinal stiffeners and multiple transverse stiffeners divide the storage space into multiple storage cells.

[0015] In one possible implementation, the exhaust duct includes interconnected horizontal and vertical sections, the vertical section being connected to the housing, the exhaust fan being installed inside the vertical section, and the check valve being installed inside the horizontal section.

[0016] In one possible implementation, the upper chamber is provided with a plurality of longitudinal plates, which are connected between the top of the housing and the partition layer. The plurality of longitudinal plates divide the upper chamber into a first chamber and a second chamber. The first chamber is used to house electrical equipment, and the ventilation holes and exhaust pipes are connected to the first chamber. The second chamber is filled with heat insulation material.

[0017] In one possible implementation, the longitudinal plate includes a first plate, a second plate, and a third plate connected in sequence. The first plate and the third plate are both connected to the front sidewall of the housing, and the first plate, the second plate, the third plate, and the front sidewall of the housing form the first chamber.

[0018] In one possible implementation, the top of the enclosure is provided with a sunshade.

[0019] In one possible implementation, the air inlet is fitted with louvers.

[0020] The beneficial effects of this utility model's protective distribution box for high-altitude applications are as follows: Compared with existing technologies, this utility model's protective distribution box for high-altitude applications divides the enclosure into an upper chamber and a lower chamber by setting a partition layer inside the box. Air is introduced through the air inlet on the side wall of the lower chamber, and after the moisture is absorbed by the dehumidifying filter in the ventilation hole in the middle of the partition layer, the dry air enters the upper chamber, effectively preventing humid air from directly contacting electrical equipment and solving the problem of humid air intrusion into distribution boxes in high-altitude areas. The check valve at the exhaust end of the exhaust pipe prevents backflow of external humid air, enhancing the distribution box's moisture resistance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the main structure of a protective distribution box for high altitude applications provided in this embodiment of the present invention;

[0023] Figure 2 For along Figure 1 Cross-sectional view of line AA in the middle;

[0024] Figure 3 For along Figure 2 Cross-sectional view of the middle BB line;

[0025] Figure 4 For along Figure 2 Cross-sectional view of the CC line;

[0026] Figure 5 for Figure 2 A magnified structural diagram at point M in the diagram;

[0027] Figure 6 A top view of the dehumidifying filter screen provided in an embodiment of this utility model;

[0028] Figure 7 This is a cross-sectional view of the dehumidifying filter provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Enclosure; 11. Upper chamber; 111. First chamber; 112. Second chamber; 12. Lower chamber; 121. Air inlet; 122. Louver; 13. Inspection window; 14. Door; 2. Partition layer; 21. Support plate; 211. Reinforcing rib; 22. Partition; 23. Connecting sleeve; 231. Ventilation hole; 232. Flared mounting groove; 3. Exhaust duct; 31. Horizontal section; 32. Longitudinal section; 4. Exhaust fan 5. Fan; 6. Check valve; 7. Flow guide cap; 8. Flow guide hole; 9. Connecting groove; 10. Annular rib; 11. Dehumidifying filter; 12. Support ring; 13. Horizontal stiffener; 14. Vertical stiffener; 15. Support mesh; 16. Storage unit; 17. Desiccant; 18. Thermal insulation material; 19. First plate; 10. Second plate; 10. Third plate; 11. Awning; 12. Inverted V-shaped plate; 13. Support column. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Please see Figures 1 to 7This invention provides a protective distribution box for high-altitude applications. The protective distribution box includes a box body 1, a partition layer 2, a dehumidifying filter 7, and an exhaust pipe 3. The box body 1 has a accommodating cavity, and the partition layer 2 is disposed within the accommodating cavity, dividing it into an upper chamber 11 and a lower chamber 12. The upper chamber 11 is used to house electrical equipment and components. The partition layer 2 has a ventilation hole 231 in its middle, connecting the upper chamber 11 and the lower chamber 12. Multiple air inlets 121 for air intake are provided on the side wall of the lower chamber 12. The dehumidifying filter 7 is disposed within the ventilation hole 231 and contains a desiccant 74 for... To absorb moisture from the flowing air, the exhaust pipe 3 is located at the top of the housing 1. The air inlet of the exhaust pipe 3 is connected to the upper chamber 11. An exhaust fan 4 is installed inside the exhaust pipe 3, and a check valve 5 is installed at the exhaust end of the exhaust pipe 3. The check valve 5 is a common type of valve in daily life. When the exhaust fan 4 is working, the airflow discharged by the exhaust fan 4 applies pressure to the valve cover of the check valve 5, causing the valve cover of the check valve 5 to open. The airflow flows through the check valve 5 and is discharged from the exhaust pipe 3. When the exhaust fan 4 stops working, the valve cover of the check valve 5 automatically closes under the action of the rocker arm, thus sealing the air and preventing external air from flowing back into the exhaust pipe 3.

[0036] This utility model provides a protective distribution box for high-altitude applications. Compared with the prior art, humid air from the outside first enters the lower chamber 12 through the air inlet 121, then flows through the ventilation hole 231 and passes through the dehumidifying filter 7. After being dried by the desiccant 74 in the dehumidifying filter 7, it flows through the upper chamber 11 to cool down the electrical equipment inside the upper chamber 11. After completing heat exchange with the electrical equipment, the air is discharged through the exhaust fan 4 and then discharged through the exhaust pipe 3. The check valve 5 installed at the exhaust end of the exhaust pipe 3 can remain closed when the exhaust fan is not in operation, thereby preventing humid air from entering the upper chamber 11 through the exhaust pipe 3.

[0037] In some embodiments, please refer to Figures 1 to 4 The aforementioned enclosure 1 is a rectangular structure formed by welding plates. An inspection window 13 is provided on the front side wall of the upper chamber 11. A door 14 is hinged to the outside of the front side wall of the enclosure 1 corresponding to the inspection window 13. The door 14 can completely cover the inspection window 13. A sealing strip is provided on the inside of the door 14 to seal the inspection window 13. When it is necessary to inspect and repair the electrical equipment in the upper chamber 11, the operator can open the door 14 and inspect and repair the electrical equipment in the upper chamber 11 through the inspection window.

[0038] In this embodiment, air inlets 121 are provided on the front side wall, rear side wall, left side wall and right side wall of the housing 1, and louvers 122 are installed on the air inlets 121.

[0039] In some embodiments, please refer to Figures 2 to 4 The aforementioned partition layer 2 includes a support plate 21 and a partition plate 22. The support plate 21 is laterally fixed to the circumferential side wall of the accommodating cavity. Specifically, there are four support plates 21, which are respectively welded and fixed laterally to the front side wall, rear side wall, left side wall, and right side wall of the housing 1. The width of the four support plates 21 is no more than one-fifth of the width of the housing 1. Multiple reinforcing ribs 211 are provided between each support plate 21 and its corresponding side wall of the housing 1. The reinforcing ribs 211 are located in the lower cavity 12. By setting the reinforcing ribs 211, strong support can be provided for the support plate 21, thereby improving the load-bearing capacity of the support plate 21.

[0040] In this embodiment, the partition 22 is disposed above the support plate 21. The partition 22 is inclined downward from the middle to the edge. The lower end of the partition 22 has four edges corresponding to the four support plates 21. The four edges of the partition 22 are respectively fixed to the corresponding support plates 21 by welding. In this embodiment, a connecting sleeve 23 is provided through the middle of the partition 22, and the through hole in the middle of the connecting sleeve 23 forms the aforementioned ventilation hole 231.

[0041] By configuring the partition 22 as described above, the partition 22 becomes an inverted funnel shape, which facilitates the convergence of airflow entering the lower chamber 12 and improves the utilization rate of airflow.

[0042] In some embodiments, please refer to Figures 5 to 7 The aforementioned dehumidifying filter 7 includes a support ring 71, with support mesh 72 fixed to both axial end faces of the support ring 71. The support mesh 72 can be fixed to the support ring 71 by bonding or welding. A storage space for placing desiccant 74 is formed between the support mesh 72 and the support ring 71. In this embodiment, the desiccant 74 is granular, and the particle size of the desiccant 74 is larger than the pore size of the support mesh 72. In application, multiple longitudinal stiffeners 712 and multiple transverse stiffeners 711 are also provided inside the support ring 71. The multiple longitudinal stiffeners 712 and multiple transverse stiffeners 711 divide the storage space into multiple storage cells 73. Each storage cell 73 contains desiccant 74, which is in a semi-filled state. When airflow passes through, it can blow the desiccant 74, causing it to tumble, thereby increasing the contact area between the desiccant 74 and the airflow.

[0043] In this embodiment, a flared mounting groove 232 is provided at the upper end of the ventilation hole 231, and the dehumidifying filter 7 is inserted into the flared mounting groove 232. An annular sealing gasket is provided between the bottom of the flared mounting groove 232 and the dehumidifying filter 7.

[0044] In this embodiment, a guide cap 6 is provided at the upper end of the connecting sleeve 23. A plurality of guide holes 61 are provided on the guide cap 6, which are arranged vertically through the sleeve. The upper surface of the guide cap 6 is convex, and the guide holes 61 are set as curved holes or inclined holes. This allows the air outlet direction of the plurality of guide holes 61 to be distributed in a divergent manner, so that the airflow entering the upper chamber 11 is relatively divergent, increasing the contact area between the airflow and the electrical equipment and improving the heat exchange efficiency.

[0045] In this embodiment, a connecting groove 62 is provided at the lower end of the flow guide cap 6, an internal thread is provided on the side wall of the connecting groove 62, an external thread is provided on the outer side wall of the connecting sleeve 23, and an annular protrusion 63 is provided in the connecting groove 62 corresponding to the dehumidification filter 7. In use, the flow guide cap 6 is threaded to the connecting sleeve 23 through the connecting groove 62, and the annular protrusion 63 in the connecting groove 62 presses against the upper end face of the support ring 71 in the dehumidification filter 7, so that the support ring 71 presses down to squeeze the annular sealing gasket.

[0046] In some embodiments, please refer to Figure 2 The aforementioned exhaust pipe 3 includes a transverse section 31 and a longitudinal section 32 that are connected to each other. The longitudinal section 32 is connected to the housing 1, the exhaust fan 4 is installed inside the longitudinal section 32, and the check valve 5 is installed inside the transverse section 31.

[0047] In some embodiments, please refer to Figures 2 to 4 To reduce the heating effect of solar radiation on the interior of the enclosure 1, multiple longitudinal plates are provided in the upper chamber 11. The longitudinal plates are connected between the top of the enclosure 1 and the support plate 21. The multiple longitudinal plates divide the upper chamber 11 into a first chamber 111 and a second chamber 112. The first chamber 111 is used to place electrical equipment. The ventilation hole 231 and the exhaust pipe 3 are connected to the first chamber 111. The second chamber 112 is filled with heat insulation material 8, which can be flame-retardant foam.

[0048] Specifically, the longitudinal plate includes a first plate 91, a second plate 92, and a third plate 93 connected in sequence. The first plate 91 and the third plate 93 are both connected to the front side wall of the housing 1. The first plate 91, the second plate 92, and the third plate 93 form a first chamber 111 with the front side wall of the housing 1. Through this arrangement, the heat insulation material 8 filled in the second chamber 112 can block solar radiation heat from entering the first chamber 111.

[0049] To further reduce solar radiation, please refer to Figures 1 to 3 A sunshade 10 is provided on the top of the box body 1. The sunshade 10 includes an inverted V-shaped plate 101. The inverted V-shaped plate 101 is connected to the top of the box body 1 by a support column 102. In this embodiment, the box body 1 is located within the orthographic projection range of the inverted V-shaped plate 101.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective distribution box for high-altitude applications, characterized in that, include: The housing (1) has a receiving cavity inside; A partition layer (2) is provided in the accommodating cavity, dividing the accommodating cavity into an upper chamber (11) and a lower chamber (12). The upper chamber (11) is used to place electrical equipment. The middle part of the partition layer (2) has a ventilation hole (231) connecting the upper chamber (11) and the lower chamber (12). The side wall of the lower chamber (12) is provided with a plurality of air inlets (121) for air intake. A dehumidifying filter (7) is provided inside the ventilation hole (231), and the dehumidifying filter (7) is provided with a desiccant (74) for absorbing moisture in the passing air; An exhaust pipe (3) is located at the top of the housing (1). The air inlet of the exhaust pipe (3) is connected to the upper chamber (11). An exhaust fan (4) is installed inside the exhaust pipe (3). A check valve (5) is installed at the exhaust end of the exhaust pipe (3).

2. The protective distribution box for high-altitude applications as described in claim 1, characterized in that, The separator layer (2) includes: A support plate (21) is laterally fixed to the circumferential sidewall of the accommodating cavity; A partition (22) is located above the support plate (21). The partition (22) is inclined downward from the middle to the edge. The lower end of the partition (22) is fixed to the support plate (21). A connecting sleeve (23) is provided through the middle of the partition (22). The through hole in the middle of the connecting sleeve (23) forms the ventilation hole (231).

3. A protective distribution box for high-altitude applications as described in claim 2, characterized in that, The upper end of the connecting sleeve (23) is provided with a flow guide cap (6), and the flow guide cap (6) is provided with a plurality of flow guide holes (61) arranged vertically. The upper end surface of the flow guide cap (6) is a convex surface, and the air outlet direction of the plurality of flow guide holes (61) is distributed in a divergent manner.

4. A protective distribution box for high-altitude applications as described in claim 1, characterized in that, The dehumidifying filter (7) includes a support ring (71), and a support mesh (72) is fixed on both axial end faces of the support ring (71). A storage space for placing desiccant (74) is formed between the support mesh (72) and the support ring (71).

5. A protective distribution box for high-altitude applications as described in claim 4, characterized in that, The support ring (71) has multiple longitudinal stiffeners (712) and multiple transverse stiffeners (711) inside, and the multiple longitudinal stiffeners (712) and multiple transverse stiffeners (711) divide the storage space into multiple storage cells (73).

6. A protective distribution box for high-altitude applications as described in claim 1, characterized in that, The exhaust pipe (3) includes a transverse section (31) and a longitudinal section (32) connected to each other. The longitudinal section (32) is connected to the housing (1). The exhaust fan (4) is installed inside the longitudinal section (32). The check valve (5) is installed inside the transverse section (31).

7. A protective distribution box for high-altitude applications as described in claim 1, characterized in that, The upper chamber (11) is provided with multiple longitudinal plates, which are connected between the top of the box body (1) and the partition layer (2). The multiple longitudinal plates divide the upper chamber (11) into a first chamber (111) and a second chamber (112). The first chamber (111) is used to place electrical equipment. The ventilation hole (231) and the exhaust pipe (3) are connected to the first chamber (111). The second chamber (112) is filled with heat insulation material (8).

8. A protective distribution box for high-altitude applications as described in claim 7, characterized in that, The longitudinal plate includes a first plate (91), a second plate (92), and a third plate (93) connected in sequence. The first plate (91) and the third plate (93) are both connected to the front side wall of the box (1). The first chamber (111) is formed between the first plate (91), the second plate (92), the third plate (93) and the front side wall of the box (1).

9. A protective distribution box for high-altitude applications as described in claim 1, characterized in that, The top of the box (1) is provided with a sunshade (10).

10. A protective distribution box for high-altitude applications as described in claim 1, characterized in that, A louver (122) is installed on the air inlet (121).

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