Low-voltage cable distribution box with dehumidification function

By installing dehumidifiers and condensation dehumidification devices in the distribution box, the corrosion problem of the distribution box in high humidity environments is solved, and the service life and power supply stability are improved.

CN223552884UActive Publication Date: 2025-11-14JILIN GUOSONG ELECTRIC POWER CO LTD
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Patent Information

Application Number
CN202422965875.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-11-14
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Existing distribution boxes are susceptible to corrosion in high humidity environments, which can lead to short circuits or open circuits, affecting their service life and power supply stability.

Method used

A dehumidifier is installed in the distribution box, equipped with a condensation dehumidification device and a semiconductor cooling chip. The humidity inside the box is reduced through the circulation of dry hot air and condensation dehumidification.

Benefits of technology

It effectively reduces humidity inside the distribution box, prevents corrosion of electrical components, and improves service life and power supply stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a low-voltage cable distribution box with a dehumidification function. The low-voltage cable distribution box comprises a distribution box, an electric power safety assembly and a dehumidifier, the electric power safety assembly is arranged in the distribution box; a dehumidifier mounting groove is formed in the lower part of the box body of the distribution box, and the dehumidifier mounting groove is through left and right; a dehumidifier power supply female interface is arranged on one side of the dehumidifier mounting groove; a control panel is arranged on one side of the dehumidifier; a dehumidifier male power supply interface is arranged on one side of the control panel; the upper part of the dehumidifier is communicated with the interior of the box body of the distribution box; the dehumidifier is sleeved in the dehumidifier mounting groove; the dehumidifier male power supply interface can be in butt joint with the dehumidifier female power supply interface. One side of the dehumidifier can blow out dry air upwards, so that the distribution box generates internal circulation, and a condensation dehumidification device is arranged in the dehumidifier. And the condensation and dehumidification device performs condensation and dehumidification on the interior of the distribution box.
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Description

Technical Field

[0001] This utility model belongs to the field of power supply equipment technology, specifically relating to a low-voltage cable distribution box with dehumidification function. Background Technology

[0002] Distribution boxes are crucial power supply facilities in power systems, primarily used on the upstream power supply side for end-users. They distribute electrical energy from transformers to different electrical devices or circuits. Distribution boxes also provide overload and short-circuit protection. They are equipped with electrical safety components such as fuses, residual current devices (RCDs), and grounding devices to protect people from excessive current or other electrical faults. Currently, most distribution boxes are installed outdoors or in basements where humidity is high. Excessive humidity inside the distribution box can corrode the electrical components, leading to short circuits or open circuits, shortening their lifespan, and affecting power supply stability and electrical safety. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a low-voltage cable distribution box with dehumidification function.

[0004] A low-voltage cable distribution box with dehumidification function includes: a distribution box, a power safety component, and a dehumidifier; the power safety component is located in the distribution box; a dehumidifier mounting slot is provided at the bottom of the distribution box, and the dehumidifier mounting slot is open from left to right; a dehumidifier power supply bus interface is provided on one side of the dehumidifier mounting slot; a control board is provided on one side of the dehumidifier; a dehumidifier power supply bus interface is provided on one side of the control board; the top of the dehumidifier is connected to the inside of the distribution box; the dehumidifier is fitted into the dehumidifier mounting slot; the dehumidifier power supply bus interface can be connected to the dehumidifier power supply bus interface; dry air can be blown upwards from one side of the dehumidifier; a condensation dehumidification device is provided in the dehumidifier; the condensation dehumidification device performs condensation dehumidification inside the distribution box.

[0005] The dehumidifier includes: a dehumidifier housing, a control board, an electric heating plate, a first cooling fan, a condenser pipe, a condenser plate, a semiconductor cooling chip, heat dissipation fins, and a second cooling fan; the dehumidifier housing has a controller cavity, a condenser cavity, an air inlet, a semiconductor device cavity, and a drain pipe; the control board is fixed to one side of the controller cavity; the first cooling fan is located above the controller cavity; the electric heating plate is located below the air inlet of the first cooling fan; the controller cavity and the condenser cavity are sealed and isolated; the condenser cavity has an air inlet above it; the air inlet is fixed at the air inlet of the condenser cavity; the condenser cavity and the semiconductor device cavity are separated by a partition; the condenser plate, the semiconductor cooling chip, the heat dissipation fins, and the second cooling fan are sequentially and tightly connected to form a condensation dehumidification device; the electric heating plate, the first cooling fan, and the second cooling fan are electrically connected to the control board.

[0006] The bottom of the condensation chamber is an inclined end face, and the drain pipe is located below the condensation chamber and the semiconductor device chamber. The two ends of the drain pipe are the drain pipe inlet and the drain pipe outlet, respectively. The drain pipe inlet is located at the lowest point of the inclined end face, and the drain pipe outlet is located on the outside of the dehumidifier housing.

[0007] The distribution box includes: a box body, a cabinet door, and a component mounting rack. The cabinet door is hinged to the front end of the box body, and the bottom of the box body is equipped with adjustable feet. A cable inlet outlet is located at the bottom of the box body. A dehumidifier mounting slot is located on one side of the cable inlet outlet at the bottom of the box body. The component mounting rack includes side uprights and mounting crossbars. Multiple mounting crossbars are provided, distributed vertically, and both ends of the mounting crossbars are fixed to the distribution box by the side uprights.

[0008] The power safety components include: circuit breakers, air switches, primary side voltmeters, and primary side ammeters. Multiple circuit breakers and air switches are provided, and multiple circuit breakers and air switches are fixed on the mounting frame. The primary side voltmeters and primary side ammeters are fixed on the cabinet door.

[0009] This technical solution provides a low-voltage cable distribution box with dehumidification function, comprising: a distribution box, a power safety component, and a dehumidifier; the power safety component is installed in the distribution box; a dehumidifier mounting slot is provided at the bottom of the distribution box, and the dehumidifier mounting slot is open from left to right; a dehumidifier power supply bus interface is provided on one side of the dehumidifier mounting slot; a control board is provided on one side of the dehumidifier; a dehumidifier power supply bus interface is provided on one side of the control board; the top of the dehumidifier is connected to the inside of the distribution box; the dehumidifier is fitted into the dehumidifier mounting slot; the dehumidifier power supply bus interface can be connected to the dehumidifier power supply bus interface; dry air can be blown upwards from one side of the dehumidifier, causing internal circulation in the distribution box, and a condensation dehumidification device is provided in the dehumidifier; the condensation dehumidification device performs condensation dehumidification inside the distribution box. Attached Figure Description

[0010] Figure 1 This is an overall schematic diagram of a low-voltage cable distribution box with dehumidification function according to this utility model;

[0011] Figure 2 This is a left-side elevation view of a low-voltage cable distribution box with dehumidification function according to this utility model;

[0012] Figure 3 This is a right-side axial-side view of a low-voltage cable distribution box with dehumidification function according to this utility model.

[0013] Figure 4 This is a partial cross-sectional view of a low-voltage cable distribution box with dehumidification function according to this utility model.

[0014] Figure 5This is a schematic diagram of the dehumidifier of a low-voltage cable distribution box with dehumidification function according to this utility model;

[0015] Figure 6 This is a schematic diagram of the dehumidifier heat dissipation port structure of a low-voltage cable distribution box with dehumidification function according to this utility model.

[0016] Figure 7 This is a cross-sectional view of a dehumidifier for a low-voltage cable distribution box with dehumidification function according to this utility model;

[0017] In the diagram: 1. Distribution box; 111. Adjustable feet; 112. Cable inlet / outlet; 113. Dehumidifier mounting slot; 11. Cabinet body; 12. Cabinet door; 13. Component mounting rack; 131. Side support frame; 132. Mounting crossbar; 14. Dehumidifier power supply bus interface; 21. Circuit breaker; 22. Open circuit breaker; 23. Primary side voltmeter; 24. Primary side ammeter; 3. Dehumidifier; 31. Dehumidifier housing; 311. Controller cavity; 312. Condensation cavity; 313. Air inlet; 314. Semiconductor device cavity; 315. Drain pipe; 32. Control board; 321. Dehumidifier power supply interface; 322. Display panel; 323. Handle; 33. Electric heating plate; 34. First cooling fan; 35. Condensation pipe; 36. Condensation plate; 37. Semiconductor cooling chip; 38. Heat dissipation fins; 39. Second cooling fan. Detailed Implementation

[0018] The technical solution will be further described clearly and completely below with reference to the accompanying drawings. The described embodiments are only a part of the technical solution, not all of the embodiments. All other embodiments obtained by those skilled in the art based on this technical solution without creative effort are within the scope of protection of this utility model.

[0019] Example

[0020] See Figures 1 to 7 As shown, a low-voltage cable distribution box with dehumidification function includes: a distribution box 1, a power safety component, and a dehumidifier 3;

[0021] The distribution box 1 includes: a box body 11, a cabinet door 12, a component mounting bracket 13, and a dehumidifier power supply bus interface 14;

[0022] The cabinet door 12 is pivotally connected to the front facade of the box body 11; the bottom of the box body 11 is provided with adjustable foot support 111; a cable inlet outlet 112 is provided at the bottom of the box body 11; the power supply cable is introduced into the box body 11 from the cable inlet outlet 112;

[0023] The dehumidifier mounting slot 113 is located on the side of the cable inlet 112 at the lower end of the housing 11, that is, the lower end of the housing 11 is provided with a dehumidifier mounting slot 113.

[0024] The dehumidifier mounting slot 113 is open on both sides; the dehumidifier 3 is fitted into the dehumidifier mounting slot 113;

[0025] The dehumidifier power supply interface 14 is located on one side of the dehumidifier mounting slot 113.

[0026] The component mounting bracket 13 includes a side upright 131 and a mounting crossbeam 132; there are at least two side uprights, which are fixed to the side uprights inside the housing 11; there are multiple mounting crossbeams, which are distributed vertically, and the two ends of the mounting crossbeams are fixed to the side uprights by bolts.

[0027] The power safety components include: circuit breaker 21, air switch 22, primary side voltmeter 23, and primary side ammeter 24. Multiple circuit breakers 21 and air switches 22 are provided, and multiple circuit breakers 21 and air switches 22 are fixed on the mounting frame respectively; the primary side voltmeter 23 and the primary side ammeter 24 are fixed on the cabinet door 12.

[0028] The dehumidifier 3 includes: a dehumidifier housing 31, a control board 32, an electric heating plate 33, a first cooling fan 34, a condenser pipe 35, a condenser plate 36, a semiconductor cooling chip 37, a heat dissipation fin 38, and a second cooling fan 39.

[0029] The dehumidifier housing 31 is provided with a controller cavity 311, a condensation cavity 312, an air inlet 313, a semiconductor device cavity 314, and a drain pipe 315;

[0030] The control board 32 is fixed to one side of the controller cavity 311 by bolts; one side of the control board 32 is provided with a dehumidifier power supply interface 321, and the front end of the control board 32 is provided with an operation display panel 322 and a handle 323; the dehumidifier power supply interface 321 can be connected to the dehumidifier power supply interface 14; the dehumidifier power supply interface 14 provides power to the control board 32;

[0031] The first cooling fan 34 is located above the controller cavity 311; the electric heating plate 33 is located below the air inlet of the first cooling fan 34; the controller cavity 311 and the condenser cavity 312 are sealed and isolated; the condenser cavity 312 is provided with a condenser cavity air inlet above it; the air inlet window 313 is a louvered air inlet grille, and the air inlet window 313 is fixed at the condenser cavity air inlet; the condenser cavity 312 and the semiconductor device cavity 314 are separated by a partition.

[0032] The bottom of the condensing chamber 312 is an inclined end face, and the drain pipe 315 is located below the condensing chamber 312 and the semiconductor device chamber 314. The two ends of the drain pipe 315 are the drain pipe inlet 3151 and the drain pipe outlet 3152, respectively. The drain pipe inlet 3151 is located at the lowest point of the inclined end face, and the drain pipe outlet 3152 is located on the outside of the dehumidifier housing 31.

[0033] The condenser tube 35 is provided with condenser fins, and both the condenser tube 35 and the condenser plate 36 are provided with working fluid cavities. The condenser tube 35 and the condenser plate 36 are connected by pipes. The working fluid cavities can flow between the condenser tube 35 and the condenser plate 36. The semiconductor refrigeration chip 37 is provided with a cooling end face and a heat dissipation end face. One side of the condenser plate 36 is in close contact with the cooling end face of the semiconductor refrigeration chip 37, and the heat dissipation end face of the semiconductor refrigeration chip 37 is in close contact with the flat end of the heat dissipation fin block 38. The second cooling fan 39 is fixed on one side of the fin of the heat dissipation fin block 38. That is, the condenser plate 36, the semiconductor refrigeration chip 37, the heat dissipation fin block 38 and the second cooling fan 39 are connected in sequence to form a condensation dehumidification device.

[0034] One end of the semiconductor device cavity 314 protrudes from the dehumidifier housing 31, and a mating stop 316 is provided on the outer edge of the semiconductor device cavity 314; a sealing gasket is provided at the mating stop 316.

[0035] The dehumidifier 3 is fitted into the dehumidifier mounting groove 113; the dehumidifier housing 31 is sealed to one side of the dehumidifier mounting groove 113 through the mating stop 316; the dehumidifier power supply interface 321 is connected to the dehumidifier power supply interface 14.

[0036] The electric heating plate 33, the first cooling fan 34, and the second cooling fan 39 are electrically connected to the control board 32.

[0037] The control board 32 can control the electric heating plate 33 and the first cooling fan 34 to be powered on and work. The electric heating plate 33 and the first cooling fan 34 work simultaneously and can blow out dry hot air. The dry hot air is blown into the side of the box 11, and circulation is generated inside the box 11. The cold air enters the condensation chamber 312 by circulating the dry hot air and its own weight. The condenser pipe 35 in the condensation chamber 312 condenses the humid air and then discharges it.

Claims

1. A low-voltage cable distribution box with dehumidification function, comprising: The distribution box (1), power safety components, and dehumidifier (3) are characterized in that: the power safety components are installed in the distribution box (1); a dehumidifier mounting slot (113) is provided at the bottom of the distribution box (1), and the dehumidifier mounting slot (113) is open from left to right; a dehumidifier power supply bus interface (14) is provided on one side of the dehumidifier mounting slot (113); a control board (32) is provided on one side of the dehumidifier (3); and a dehumidifier power supply bus interface (14) is provided on one side of the control board (32). The dehumidifier (3) is connected to the inside of the distribution box (1) above the dehumidifier (3); the dehumidifier (3) is fitted into the dehumidifier mounting slot (113); the dehumidifier power supply interface (321) can be connected to the dehumidifier power supply bus interface (14); dry air can be blown upwards from one side of the dehumidifier (3) to generate internal circulation in the distribution box (1); the dehumidifier (3) is equipped with a condensation dehumidification device; the condensation dehumidification device performs condensation dehumidification in the distribution box (1).

2. The low-voltage cable distribution box with dehumidification function according to claim 1, characterized in that: The dehumidifier (3) includes: a dehumidifier housing (31), a control board (32), an electric heating plate (33), a first cooling fan (34), a condenser pipe (35), a condenser plate (36), a semiconductor cooling chip (37), a heat dissipation fin (38), and a second cooling fan (39); the dehumidifier housing (31) is provided with a controller cavity (311), a condensation cavity (312), an air inlet (313), a semiconductor device cavity (314), and a drain pipe (315); the control board (32) is fixed to one side of the controller cavity (311); the first cooling fan (34) is located above the controller cavity (311); the electric heating plate (33) is located above the controller cavity (311); the first cooling fan (34) is located above the controller cavity (311); the first cooling fan (34) is located above the controller cavity (311); the second cooling fan (35) is located above the dehumidifier housing (311); the third cooling fan (36) is located above the dehumidifier housing (37), a semiconductor cooling chip (38), a heat dissipation fin (39), and a second cooling fan (30). The hot plate (33) is located at the lower end of the air inlet of the first cooling fan (34); the controller cavity (311) and the condensing cavity (312) are sealed and isolated; the condensing cavity air inlet is provided above the condensing cavity (312); the air inlet window (313) is fixed at the condensing cavity air inlet; the condensing cavity (312) and the semiconductor device cavity (314) are separated by a partition; the condensing plate (36), the semiconductor cooling chip (37), the heat dissipation fins (38) and the second cooling fan (39) are connected in sequence to form a condensing dehumidification device; the electric heating plate (33), the first cooling fan (34) and the second cooling fan (39) are electrically connected to the control board (32).

3. The low-voltage cable distribution box with dehumidification function according to claim 2, characterized in that: The bottom of the condensing chamber (312) is an inclined end face, and the drain pipe (315) is located below the condensing chamber (312) and the semiconductor device chamber (314); the two ends of the drain pipe (315) are the drain pipe inlet (3151) and the drain pipe outlet (3152) respectively; the drain pipe inlet (3151) is located at the lowest point of the inclined end face, and the drain pipe outlet (3152) is located on the outside of the dehumidifier housing (31).

4. The low-voltage cable distribution box with dehumidification function according to claim 3, characterized in that: The distribution box (1) includes: a box body (11), a cabinet door (12), and a component mounting bracket (13). The cabinet door (12) is axially connected to the front end of the box body (11). The bottom of the box body (11) is provided with adjustable feet (111). A cable inlet outlet (112) is provided below the box body (11). A dehumidifier mounting slot (113) is located on one side of the cable inlet outlet (112) at the lower end of the box body (11). The component mounting bracket (13) includes a side upright (131) and a mounting crossbar (132). There are multiple mounting crossbars, which are distributed vertically. The two ends of the mounting crossbars are fixed in the distribution box (1) through the side uprights.

5. The low-voltage cable distribution box with dehumidification function according to claim 4, characterized in that: The power safety components include: circuit breaker (21), air switch (22), primary side voltmeter (23), and primary side ammeter (24). Multiple circuit breakers (21) and air switches (22) are provided, and multiple circuit breakers (21) and air switches (22) are fixed on the mounting frame respectively; the primary side voltmeter (23) and the primary side ammeter (24) are fixed on the cabinet door (12).