Moisture-proof distribution box
By using a motor-driven threaded rod and lifting frame in conjunction with a humidity sensor, along with color-changing silica gel particles, a temperature sensor, and an automated adjustment of the electric telescopic rod, the problem of accurate humidity and temperature control inside the distribution box is solved, achieving efficient dehumidification and heat dissipation in the moisture-proof distribution box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN MAOLONG ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-24
AI Technical Summary
Existing distribution boxes have limited dehumidification capabilities, making it impossible to accurately monitor and control humidity in different areas within the box. Furthermore, their heat dissipation methods are limited, making them unable to effectively address the issue of rising temperatures.
The system employs a motor-driven threaded rod and lifting frame in conjunction with a humidity sensor to accurately monitor humidity at different heights within the chamber, and uses color-changing silica gel particles to absorb moisture. A temperature sensor and an electric telescopic rod, along with a fan and filtration system, enable automated humidity and temperature regulation.
It enables precise monitoring and control of humidity and temperature inside the enclosure, ensuring that the enclosure is always kept dry, avoiding the impact of moisture and high temperature on electrical components, and extending service life.
Smart Images

Figure CN224164511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution box technology, and in particular to a moisture-proof distribution box. Background Technology
[0002] The main purpose of a distribution box is to house electrical equipment in a sealed space to prevent the complex external environment from affecting the electrical components. However, placing electrical equipment in a sealed environment can cause other problems. For example, the operating temperature of the electrical components may rise, and moisture inside may condense, which can corrode the electrical components and affect their service life.
[0003] Chinese utility model patent CN221747723U discloses a moisture-proof distribution box. When the air inside the distribution box is humid, it effectively removes moisture by using auxiliary air extraction, thus minimizing excessive humidity inside the box. The moisture-proof distribution box includes a main body with a distribution cavity inside. symmetrical insertion slots are provided on both sides of the distribution cavity. A guide vane protrudes from the top of the distribution cavity. An exhaust assembly is installed on the top of the main body. The exhaust assembly includes an exhaust hood with an exhaust port on one side. A cavity is formed inside the exhaust hood. A guide port is horizontally inserted through the guide vane. A mounting cover slides within the cavity of the exhaust hood. An exhaust wheel rotates inside the mounting cover. L-shaped sealing plates are symmetrically installed at the bottom of the mounting cover, with a first exhaust port on the sealing plate. An electric push rod is installed at the bottom of the guide vane.
[0004] Existing distribution boxes use exhaust components and electric actuators to remove internal moisture through auxiliary air extraction and ventilation, which alleviates the problem of dampness inside the distribution box to some extent. However, their dehumidification method is relatively simple, mainly relying on ventilation to reduce moisture. It cannot accurately monitor and control the humidity in different areas inside the box, thus making it difficult to control the humidity in different locations inside the box. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems existing in the prior art, this utility model provides a moisture-proof distribution box.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a moisture-proof distribution box, comprising a box body, a door panel hinged to the outer surface of the box body, a dehumidification mechanism fixedly connected to the outer surface of the door panel, and a heat dissipation mechanism fixedly connected to the outer surface of the box body. The dehumidification mechanism includes a fixed frame fixedly connected to the outer surface of the door panel, a connecting plate slidably connected to the inner side of the fixed frame, a lifting frame fixedly connected to the outer surface of the connecting plate, two sets of first fans fixedly connected to the inner wall of the lifting frame, two sets of humidity sensors fixedly connected to the inner wall of the lifting frame, and a control panel fixedly connected to the outer surface of the fixed frame. The heat dissipation mechanism includes an air inlet frame fixedly connected to the outer surface of the box body, a sliding frame slidably connected to the inner wall of the air inlet frame, a silicone filling layer fixedly connected to the inner wall of the sliding frame, and a first baffle and a second baffle slidably connected to the inner wall of the box body.
[0009] In a preferred embodiment of the moisture-proof distribution box of this utility model, a motor is fixedly connected to the inner wall of the fixed frame, and a ventilation mesh is fixedly connected to the outer surface of the motor. A threaded rod is fixedly connected to the output shaft of the motor. The threaded rod is rotatably connected to the inner wall of the fixed frame, and the outer surface of the threaded rod is threadedly connected to the outer surface of the connecting plate. Multiple sets of second fans are fixedly connected to the inner wall of the fixed frame.
[0010] By adopting the above technical solution, the humidity at different heights inside the chamber can be easily detected by starting the motor.
[0011] In a preferred embodiment of the moisture-proof distribution box of this utility model, a transparent frame is slidably connected to the inner wall of the lifting frame, a through-hole plate is fixedly connected to the outer surface of the transparent frame, and the inner wall of the transparent frame is filled with silicone particles.
[0012] By adopting the above technical solution, the silica gel particles facilitate the absorption of moisture inside the box, while the transparent frame made of transparent material facilitates the observation of the silica gel inside the transparent frame.
[0013] As a preferred embodiment of the moisture-proof distribution box of this utility model, the dehumidification mechanism further includes a limiting groove formed on the outer surface of the door panel, and a slider that cooperates with the limiting groove is fixedly connected to the outer surface of the lifting frame, and the air inlets of the two sets of first fans are in opposite directions.
[0014] By adopting the above technical solution, the lifting frame can be easily limited by the limiting groove, so that the lifting frame can slide stably along the outer surface of the door panel.
[0015] In a preferred embodiment of the moisture-proof distribution box of this utility model, the heat dissipation mechanism further includes an electric telescopic rod and a temperature sensor fixedly connected to the inner wall of the box. The output end of the electric telescopic rod is hinged with two sets of connecting rods, and the other end of the connecting rod is respectively hinged to the outer surface of the second baffle and the first baffle. The inner wall of the box is fixedly connected with multiple sets of limiting rods, and the outer surface of the limiting rods is slidably connected to the outer surface of the first baffle and the second baffle. The temperature sensor is fixedly connected to the inner wall of the box.
[0016] By adopting the above technical solution, the electric telescopic rod can be activated to push the second baffle and the first baffle to move in opposite directions, and the limiting rod can be used to limit the second baffle and the first baffle.
[0017] In a preferred embodiment of the moisture-proof distribution box of this utility model, an air outlet filter is fixedly connected to the outer surface of the box body, the air outlet filter is disposed above the second baffle, and an air inlet filter is fixedly connected to the outer surface of the air inlet frame.
[0018] By adopting the above technical solution, the exhaust filter and the inlet filter plate can effectively prevent dust from entering the box.
[0019] (III) Beneficial Effects
[0020] This utility model provides a moisture-proof distribution box. It has the following beneficial effects:
[0021] 1. Through a motor-driven threaded rod and lifting frame, the system can flexibly adjust the position of the humidity sensor to accurately monitor humidity at different heights within the chamber. When the detected humidity exceeds a predetermined value, two sets of primary fans activate, creating air circulation. Combined with the moisture-absorbing function of the color-changing silica gel particles, this effectively reduces the humidity inside the chamber. The color-changing properties of the silica gel particles make the moisture absorption status readily visible, facilitating timely replacement or drying, ensuring a consistently dry environment inside the chamber.
[0022] 2. A temperature sensor and an electric telescopic rod automatically activate the cooling mechanism when excessively high temperatures are detected inside the chamber. The electric telescopic rod moves a baffle, allowing a second fan to blow outside air, which has undergone dual filtration (inlet filter and silicone-filled layer), into the chamber for rapid cooling. Once the temperature drops, the baffle automatically resets, reducing the ingress of external moisture, ensuring effective heat dissipation while preventing moisture from affecting the internal environment. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a front cross-sectional view of the overall structure of this utility model;
[0026] Figure 3 This is a side sectional view of the overall structure of this utility model;
[0027] Figure 4 This is a top-view cross-sectional structural diagram of the entire utility model.
[0028] In the diagram: 1. Cabinet; 2. Dehumidification mechanism; 201. Ventilation screen; 202. Control panel; 203. Fixed frame; 204. First fan; 205. Perforated plate; 206. Lifting frame; 207. Motor; 208. Transparent frame; 209. Threaded rod; 210. Connecting plate; 211. Humidity sensor; 212. Limiting groove; 3. Door panel; 4. Heat dissipation mechanism; 401. Outlet air filter; 402. Second fan; 403. First baffle; 404. Second baffle; 405. Limiting rod; 406. Connecting rod; 407. Electric telescopic rod; 408. Inlet frame; 409. Inlet filter plate; 410. Sliding frame; 411. Silicone filling layer. Detailed Implementation
[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0030] Example 1
[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This is the first embodiment of the present invention. This embodiment provides a moisture-proof power distribution box, including a box body 1. A door panel 3 is hinged to the outer surface of the box body 1. A dehumidification mechanism 2 is fixedly connected to the outer surface of the door panel 3, and a heat dissipation mechanism 4 is fixedly connected to the outer surface of the box body 1. The dehumidification mechanism 2 includes a fixed frame 203 fixedly connected to the outer surface of the door panel 3. A connecting plate 210 is slidably connected to the inner side of the fixed frame 203. A lifting frame 206 is fixedly connected to the outer surface of the connecting plate 210. Two sets of first fans 204 are fixedly connected to the inner wall of the lifting frame 206, and two sets of humidity sensors 211 are fixedly connected to the inner wall of the lifting frame 206. A control panel 202 is fixedly connected to the outer surface of the fixed frame 203.
[0032] Specifically, a motor 207 is fixedly connected to the inner wall of the fixed frame 203, and a ventilation mesh 201 is fixedly connected to the outer surface of the motor 207. A threaded rod 209 is fixedly connected to the output shaft of the motor 207. The threaded rod 209 is rotatably connected to the inner wall of the fixed frame 203, and the outer surface of the threaded rod 209 is threadedly connected to the outer surface of the connecting plate 210. A transparent frame 208 is slidably connected to the inner wall of the lifting frame 206. A through-hole plate 205 is fixedly connected to the outer surface of the transparent frame 208, and the inner wall of the transparent frame 208 is filled with silicone particles. The dehumidification mechanism 2 also includes a limiting groove 212 opened on the outer surface of the door panel 3. A slider that works with the limiting groove 212 is fixedly connected to the outer surface of the lifting frame 206. The air inlets of the two sets of first fans 204 are in opposite directions. Multiple sets of second fans 402 are fixedly connected to the inner wall of the fixed frame 203. The second fans 402 can blow external air into the box 1.
[0033] Furthermore, through the threaded rod 209 driven by the motor 207 and the lifting frame 206, the system can flexibly adjust the position of the humidity sensor 211 to achieve accurate monitoring of humidity at different heights within the chamber 1. When the detected humidity exceeds a predetermined value, the two sets of first fans 204 are activated, forming an air circulation. Combined with the moisture-absorbing function of the color-changing silica gel particles, this effectively reduces the humidity inside the chamber 1. The color-changing properties of the silica gel particles make the moisture absorption status readily visible, facilitating timely replacement or drying, ensuring that the chamber 1 always maintains a dry environment.
[0034] Example 2
[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The heat dissipation mechanism 4 includes an air inlet frame 408 fixedly connected to the outer surface of the housing 1. A sliding frame 410 is slidably connected to the inner wall of the air inlet frame 408. A silicone filling layer 411 is fixedly connected to the inner wall of the sliding frame 410. A first baffle 403 and a second baffle 404 are slidably connected to the inner wall of the housing 1.
[0036] The specific heat dissipation mechanism 4 also includes an electric telescopic rod 407 and a temperature sensor fixedly connected to the inner wall of the housing 1. The output end of the electric telescopic rod 407 is hinged with two sets of connecting rods 406. The other end of the connecting rods 406 is hinged to the outer surface of the second baffle 404 and the first baffle 403 respectively. The inner wall of the housing 1 is fixedly connected with multiple sets of limiting rods 405. The outer surface of the limiting rods 405 is slidably connected to the outer surface of the first baffle 403 and the second baffle 404 respectively. The temperature sensor is fixedly connected to the inner wall of the housing 1. An air outlet filter 401 is fixedly connected to the outer surface of the housing 1. The air outlet filter 401 is located above the second baffle 404. An air inlet filter 409 is fixedly connected to the outer surface of the air inlet frame 408.
[0037] Furthermore, through a temperature sensor and an electric telescopic rod 407, the cooling mechanism is automatically activated when the temperature inside the enclosure 1 is detected to be too high. The electric telescopic rod 407 pushes the baffle to move, allowing the second fan 402 to blow outside air, which has passed through the dual-filter intake air filter plate 409 and the silicone filling layer 411, into the enclosure 1, achieving rapid cooling. After the temperature drops, the baffle automatically resets, reducing the entry of external moisture, ensuring the cooling effect, and preventing moisture from affecting the internal environment of the enclosure 1.
[0038] Working Principle: First, the motor 207 is started. The output shaft of the motor 207 drives the threaded rod 209 to rotate. The connecting plate 210 and the lifting frame 206, which are threadedly connected to the threaded rod 209, move up and down accordingly. The humidity sensor 211 on the lifting frame 206 can detect the humidity at different heights inside the chamber 1. For dehumidification, the selected silica gel particles are color-changing silica gel with a particle size of about 2-3 mm. It has a large specific surface area and strong adsorption performance. When the humidity at a certain height of the chamber 1 exceeds the predetermined value, two sets of first fans 204 are started. One set blows the gas inside the chamber 1 into the lifting frame 206, and the other set extracts the gas from the lifting frame 206, realizing the circulation and filtration of the gas inside the chamber 1. During this process, the color-changing silica gel particles filled in the transparent frame 208 absorb moisture from the air. As the absorbed moisture increases, the silica gel particles will gradually change from blue to pink. The color change of the silica gel particles can be directly observed through the transparent frame 208, making it easy to judge its moisture absorption degree. When the color change range of the silica gel particles reaches a certain proportion, it needs to be replaced or dried.
[0039] In terms of heat dissipation, when the temperature sensor detects that the temperature inside the enclosure 1 is too high, the electric telescopic rod 407 is activated. The output end of the electric telescopic rod 407 drives the connecting rod 406 to rotate, pushing the first baffle 403 and the second baffle 404 to move in opposite directions. Under the limiting action of the limiting rod 405, the second baffle 404 separates from the outlet air filter 401, and the first baffle 403 separates from the second fan 402. At this time, the second fan 402 is activated. After the outside air passes through the inlet air filter 409 to initially filter dust, it passes through the silicone filling layer 411 to further filter impurities and moisture, and is then blown into the enclosure 1, thereby achieving cooling inside the enclosure 1. When the temperature drops, the electric telescopic rod 407 resets, the second baffle 404 covers the outlet air filter 401 again, and the first baffle 403 covers the second fan 402, effectively reducing the entry of outside moisture into the enclosure 1.
[0040] It should be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A moisture-proof distribution box, comprising a box body (1), characterized in that: The outer surface of the box (1) is hinged with a door panel (3), the outer surface of the door panel (3) is fixedly connected with a dehumidification mechanism (2), and the outer surface of the box (1) is fixedly connected with a heat dissipation mechanism (4). The dehumidification mechanism (2) includes a fixed frame (203) fixedly connected to the outer surface of the door panel (3), a connecting plate (210) slidably connected to the inner side of the fixed frame (203), a lifting frame (206) fixedly connected to the outer surface of the connecting plate (210), two sets of first fans (204) fixedly connected to the inner wall of the lifting frame (206), and two sets of humidity sensors (211) fixedly connected to the inner wall of the lifting frame (206). A control panel (202) is fixedly connected to the outer surface of the fixed frame (203). The heat dissipation mechanism (4) includes an air intake frame (408) fixedly connected to the outer surface of the housing (1), a sliding frame (410) slidably connected to the inner wall of the air intake frame (408), a silicone filling layer (411) fixedly connected to the inner wall of the sliding frame (410), and a first baffle (403) and a second baffle (404) slidably connected to the inner wall of the housing (1).
2. The moisture-proof distribution box according to claim 1, characterized in that: A motor (207) is fixedly connected to the inner wall of the fixed frame (203), and a ventilation mesh (201) is fixedly connected to the outer surface of the motor (207). A threaded rod (209) is fixedly connected to the output shaft of the motor (207). The threaded rod (209) is rotatably connected to the inner wall of the fixed frame (203), and the outer surface of the threaded rod (209) is threadedly connected to the outer surface of the connecting plate (210). Multiple sets of second fans (402) are fixedly connected to the inner wall of the fixed frame (203).
3. A moisture-proof distribution box according to claim 2, characterized in that: The inner wall of the lifting frame (206) is slidably connected to a transparent frame (208), the outer surface of the transparent frame (208) is fixedly connected to a through-hole plate (205), and the inner wall of the transparent frame (208) is filled with silicone particles.
4. A moisture-proof distribution box according to claim 3, characterized in that: The dehumidification mechanism (2) also includes a limiting groove (212) opened on the outer surface of the door panel (3), and a slider that works with the limiting groove (212) is fixedly connected to the outer surface of the lifting frame (206), and the air inlets of the two sets of first fans (204) are in opposite directions.
5. A moisture-proof distribution box according to claim 3, characterized in that: The heat dissipation mechanism (4) further includes an electric telescopic rod (407) and a temperature sensor fixedly connected to the inner wall of the box (1). The output end of the electric telescopic rod (407) is hinged with two sets of connecting rods (406). The other end of the connecting rod (406) is hinged to the outer surface of the second baffle (404) and the first baffle (403) respectively. The inner wall of the box (1) is fixedly connected with multiple sets of limiting rods (405). The outer surface of the limiting rod (405) is slidably connected to the outer surface of the first baffle (403) and the second baffle (404) respectively. The temperature sensor is fixedly connected to the inner wall of the box (1).
6. A moisture-proof distribution box according to claim 5, characterized in that: An air outlet filter (401) is fixedly connected to the outer surface of the housing (1), the air outlet filter (401) is located above the second baffle (404), and an air inlet filter (409) is fixedly connected to the outer surface of the air inlet frame (408).
Citation Information
Patent Citations
Moisture-proof distribution box
CN221747723U