Dehumidification device for distribution box
By combining a blower blade driven by a dual-axis motor with a shredder, along with a mesh screen and silica gel desiccant, the problem of air filtration and humidity control in existing power distribution box dehumidification devices is solved, achieving efficient dehumidification and stable humidity control, and improving the operational stability and lifespan of the equipment.
Patent Information
- Application Number
- CN202520459764.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing dehumidification devices in distribution boxes lack effective air filtration and cleaning mechanisms, making it easy for dust and impurities to enter and affecting the dehumidification effect. At the same time, it is difficult to accurately control humidity, resulting in energy waste or insufficient humidity.
It adopts a combination of fan blades and agitator driven by a dual-axis motor, combined with a screen and silica gel desiccant, and controls the dehumidification process through a timer switch to achieve air filtration and humidity control.
It effectively filters impurities, ensures air circulation, stabilizes humidity, improves dehumidification effect, extends equipment life and enhances operational stability.
Smart Images

Figure CN223927916U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dehumidification technology for distribution boxes, and particularly to a dehumidification device for distribution boxes. Background Technology
[0002] Dehumidifiers for distribution boxes are key equipment for ensuring a dry internal environment. They effectively reduce the humidity inside the distribution box through technologies such as condensation, adsorption, or ventilation. In humid environments, such as basements and outdoor locations where distribution boxes are prone to moisture, this device can prevent problems such as short circuits and corrosion caused by moisture, ensure the normal operation of electrical components, improve the stability and safety of the distribution box, extend the service life of the equipment, and safeguard the reliable operation of the power system.
[0003] Most existing devices in the technology do not have a filter screen or a shredder, which makes it impossible to effectively filter the incoming air and clean up any debris that may cause blockages. This allows dust and impurities to easily enter the distribution box, reducing airflow and affecting dehumidification. At the same time, some existing dehumidification devices are difficult to control the dehumidification time precisely, either over-dehumidifying and wasting energy or under-dehumidifying and failing to maintain stable humidity. Therefore, we propose a dehumidification device for distribution boxes. Utility Model Content
[0004] The purpose of this invention is to provide a dehumidification device for distribution boxes to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dehumidification device for a distribution box, comprising a dehumidification mechanism and a connecting mechanism disposed on its back. The dehumidification mechanism includes a mounting plate, a fixing frame fixedly mounted at the center of the front of the mounting plate, a square groove inside the fixing frame, and circular grooves on both sides of the square groove. The square groove is connected to a blower blade and a grinding blade holder via a dual-axis motor. A timer switch is fixedly connected to the power line of the dual-axis motor. An air duct is fixedly mounted on the back of the mounting plate, and containers are fixedly mounted inside the branches of the air duct. An air inlet stainless steel filter is snapped into the air inlet end of the container, and an exhaust grille is snapped into its air outlet end. Silica gel desiccant is placed inside the container.
[0006] As a preferred embodiment, the dual-axis motor is fixedly installed inside the square slot, the fan blades are fixedly installed on the inner output shaft of the dual-axis motor, the pulverizing blade holder is fixedly installed on the outer output shaft of the dual-axis motor, and an intercepting net is snapped into the side of the circular slot near the pulverizing blade holder.
[0007] As a preferred embodiment, the air duct has an air inlet on its front side, and the air inlet coincides with the end of the circular groove near the fan blade.
[0008] As a preferred option, the air duct material is flame-retardant PVC.
[0009] As a preferred embodiment, the connecting mechanism includes a connecting plate with an adapter groove extending through its surface. The size of the adapter groove is consistent with the opening of the exhaust grille. Threaded holes are provided at both the upper and lower ends of the connecting plate near the sides, and threaded rods are threaded into the interior of each threaded hole.
[0010] As a preferred embodiment, the outer wall of the threaded rod is threaded with a first nut near the connecting plate, and a fixing plate is slidably connected to the outer wall near the upper end. The outer wall of the threaded rod is threaded with a second nut at both the upper and lower ends of the fixing plate.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. Through the dehumidification mechanism and the start interval of the timer switch, the dual-axis motor can be controlled to start within a preset time, synchronously driving the blower blades and the shredder. The blower blades rotate rapidly, generating a strong airflow that introduces relatively dry outside air. Impurities in the air are filtered through the interception net, and the shredder shreds the clogged garbage. The air enters the container containing silica gel desiccant along the air duct. The moisture in the air is quickly absorbed by the silica gel desiccant. The dried air flows out from the air outlet of the container and is evenly and orderly distributed to all corners of the distribution box under the guidance of the exhaust grille. This dry air continuously replaces the original humid air in the box. As the circulation continues, the humidity in the distribution box gradually decreases and eventually stabilizes at a suitable level.
[0013] 2. Through the set connection mechanism, the dehumidification mechanism and the distribution box can be connected through the connecting plate. The fixing plate can slide freely on the threaded rod, which can easily adapt to the distribution box of different sizes within a certain range and cover the specification changes within a certain range. By tightening the first nut and the second nut, the fixing plate is limited to ensure a stable connection. The whole process is simple, convenient and quick to operate. Moreover, when it is necessary to disassemble and maintain the equipment, it can be completed quickly, which significantly improves work efficiency and convenience. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model from another perspective;
[0016] Figure 3 This is one of the partial structural schematic diagrams of the dehumidification mechanism of this utility model;
[0017] Figure 4This is a second partial structural schematic diagram of the dehumidification mechanism of this utility model;
[0018] Figure 5 This is a front view of the air duct of the dehumidification mechanism of this utility model;
[0019] Figure 6 This is a rear view of the air duct of the dehumidification mechanism of this utility model;
[0020] Figure 7 This is the third partial structural schematic diagram of the dehumidification mechanism of this utility model;
[0021] Figure 8 For the present utility model Figure 7 Exploded view;
[0022] Figure 9 This is a three-dimensional structural diagram of the connecting mechanism of this utility model;
[0023] Figure 10 For the present utility model Figure 9 Exploded view.
[0024] In the diagram: 1. Dehumidification mechanism; 101. Mounting plate; 102. Fixing frame; 103. Square slot; 104. Circular slot; 105. Dual-axis motor; 106. Timer switch; 107. Fan blades; 108. Grinding blade holder; 109. Interception net; 110. Air duct; 111. Air inlet; 112. Container; 113. Inlet stainless steel filter; 114. Exhaust grille; 115. Silica gel desiccant; 2. Connecting mechanism; 201. Connecting plate; 202. Adaptor slot; 203. Threaded hole; 204. Threaded rod; 205. First nut; 206. Second nut; 207. Fixing plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Example 1:
[0027] Please see the appendix Figure 1 - Appendix Figure 8A dehumidification device for a distribution box includes a dehumidification mechanism 1 and a connecting mechanism 2 disposed on its back. The dehumidification mechanism 1 includes a mounting plate 101. A fixing frame 102 is fixedly installed at the center of the front of the mounting plate 101. A square groove 103 is opened inside the fixing frame 102. Circular grooves 104 are opened on both the front and back sides of the square groove 103. A blower blade 107 and a grinding blade holder 108 are connected to the square groove 103 through a dual-shaft motor 105. A timer switch 106 is fixedly connected to the power line of the dual-shaft motor 105. An air duct 110 is fixedly installed on the back of the mounting plate 101. A container 112 is fixedly installed inside each branch of the air duct 110. The air inlet end of container 112 is fitted with an air inlet stainless steel filter 113, while the air outlet end is fitted with an exhaust grille 114. Silica gel desiccant 115 is placed inside container 112. A dual-axis motor 105 is fixedly installed inside a square slot 103. A blower blade 107 is fixedly installed on the inner output shaft of the dual-axis motor 105. A crushing blade holder 108 is fixedly installed on the outer output shaft of the dual-axis motor 105. A blocking net 109 is fitted to the side of the circular slot 104 near the crushing blade holder 108. An air inlet 111 is opened on the front of the air duct 110. The air inlet 111 coincides with the end of the circular slot 104 near the blower blade 107. The air duct 110 is made of flame-retardant PVC.
[0028] The dual-shaft motor 105 is existing technology and is a motor with a special structure. It has a rotating shaft extending from both ends of the motor to ensure that the blower blades 107 and the shredder 108 rotate simultaneously. The shredder 108, together with the interception net 109, can shred external garbage and avoid garbage blockage that would obstruct the airflow. The container 112 for the silica gel desiccant 115 is made of corrosion-resistant PP plastic. The silica gel desiccant 115, as a dehumidification medium, has the advantages of strong adsorption capacity, stable chemical properties, and recyclability.
[0029] Specifically, by setting the start interval of the timer switch 106, the dual-axis motor 105 can be controlled to turn on within a specified time, driving the fan blades 107 and the shredder holder 108 to rotate, generating a strong airflow. The relatively dry external air is filtered through the interceptor net 109, passes through the air duct 110, and then passes through the silica gel desiccant 115 in the container 112. The moisture in the air is adsorbed, achieving drying. The dried air flows out from the air outlet of the container 112 and is evenly distributed to various parts of the distribution box under the guidance of the exhaust grille 114, replacing the humid air inside the box. With continuous air circulation, the humidity inside the distribution box gradually decreases and is maintained at a suitable level.
[0030] Example 2:
[0031] Please see the appendix Figure 1 Appendix Figure 9 and attached Figure 10Furthermore, based on Embodiment 1, the connecting mechanism 2 includes a connecting plate 201. The surface of the connecting plate 201 is perforated with an adapter groove 202. The size of the adapter groove 202 is consistent with the opening of the exhaust grille 114. Threaded holes 203 are provided at both the upper and lower ends of the connecting plate 201 near the sides. Threaded rods 204 are threadedly connected inside the threaded holes 203. A first nut 205 is threadedly connected to the outer wall of the threaded rod 204 near the connecting plate 201, while a fixing plate 207 is slidably connected to its outer wall near the upper end. A second nut 206 is threadedly connected to the outer wall of the threaded rod 204 at both the upper and lower ends of the fixing plate 207.
[0032] There are two sets of fixing plates 207. The bottom of the fixing plate 207 is non-slip and can fit tightly with the distribution box. The second nut 206 can limit the fixing plate 207, while the first nut 205 can assist in fixing the position of the threaded rod 204.
[0033] Specifically, the dehumidification mechanism 1 and the distribution box can be connected through the connecting plate 201. The fixed plate 207 can be moved on the threaded rod 204 to adapt to distribution boxes of different sizes within a certain range. The fixed plate 207 is limited by the first nut 205 and the second nut 206, which is convenient, quick and easy to disassemble and maintain.
[0034] Working principle of this utility model: This utility model is a dehumidification device for a distribution box. First, the position of the threaded rod 204 in the threaded hole 203 and the position of the two fixing plates 207 on the threaded rod 204 are adjusted according to the height of the distribution box, so that the two fixing plates 207 are tightly abutted against the upper and lower ends of the distribution box respectively. Then, the first nut 205 and the second nut 206 are tightened to firmly fix the connecting plate 201 to the distribution box. The start interval of the timer switch 106 is set to control the dual-axis motor 105 to turn on within a specified time, driving the fan blades 107 and the shredder 108 to rotate, generating a strong airflow. The relatively dry air outside is filtered through the interception net 109, passes through the air duct 110, and then passes through the silica gel desiccant 115 in the container 112. The moisture in the air is adsorbed, achieving drying treatment. The dried air flows out from the air outlet of the container 112 and is evenly distributed to various parts of the distribution box under the guidance of the exhaust grille 114, replacing the humid air inside the box.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 dehumidifying device for a distribution box, comprising a dehumidifying mechanism (1) and a connecting mechanism (2) arranged at the back thereof, characterized in that: The dehumidification mechanism (1) includes a mounting plate (101), the front surface of the mounting plate (101) is fixedly installed with a fixed frame (102) at the central position, a square groove (103) is formed in the inside of the fixed frame (102), circular grooves (104) are formed on the front and back sides of the square groove (103), the square groove (103) is connected with a blowing fan blade (107) and a chopping knife holder (108) through a double-shaft motor (105), a timing switch (106) is fixedly connected on the power line of the double-shaft motor (105), a wind channel (110) is fixedly installed on the back surface of the mounting plate (101), containers (112) are fixedly installed in the branches of the wind channel (110), a wind inlet stainless steel filter screen (113) is clamped on the wind inlet end of the container (112), and an air outlet grille (114) is clamped on the air outlet end of the container (112), and silica gel driers (115) are placed in the containers (112).
2. The dehumidifying apparatus for an electrical distribution box according to claim 1, characterized by: The double-shaft motor (105) is fixedly installed in the square groove (103), the blowing fan blade (107) is fixedly installed on the inside output shaft of the double-shaft motor (105), the chopping knife holder (108) is fixedly installed on the outside output shaft of the double-shaft motor (105), and the circular groove (104) is clamped with an intercepting net (109) on the side close to the chopping knife holder (108).
3. The dehumidification device for an electrical distribution box according to claim 2, characterized by: The wind channel (110) is provided with an air inlet (111) on the front surface, and the air inlet (111) coincides with one end of the circular groove (104) close to the blowing fan blade (107).
4. The dehumidification device for an electrical distribution box according to claim 3, characterized by: The material of the wind channel (110) is flame-retardant PVC.
5. The dehumidification device for an electrical distribution box according to claim 1, characterized by: The connecting mechanism (2) includes a connecting plate (201), an adaptive groove (202) penetrates through the surface of the connecting plate (201), the size of the adaptive groove (202) is consistent with the opening of the air outlet grille (114), threaded holes (203) are formed on the upper and lower ends of the connecting plate (201) close to the two side positions, and threaded rods (204) are screw-connected in the threaded holes (203).
6. The dehumidification device for an electrical distribution box according to claim 5, characterized by: First nuts (205) are screw-connected on the outer wall of the threaded rods (204) close to the connecting plate (201), fixed plates (207) are slidingly connected on the outer wall of the threaded rods (204) close to the upper ends, and second nuts (206) are screw-connected on the outer wall of the threaded rods (204) at the upper and lower ends of the fixed plates (207).