Dehumidifying electric appliance cabinet

Abstract

The invention provides a dehumidifying electric appliance cabinet, and relates to the technical field of electric appliance cabinets, the dehumidifying electric appliance cabinet comprises a cabinet body, a driving mechanism and a replacing mechanism, the driving mechanism is composed of a symmetrical assembly and a diffusion assembly, a motor drives a high-low disc and a piston rod to enable a cavity to suck and exhaust air periodically, and meanwhile, in the suction and exhaust double-stroke, air flows through a moisture absorption block to achieve secondary dehumidification; the diffusion assembly strengthens air circulation through an impeller and a diffusion cone, the replacement mechanism is composed of a fixing assembly and a variable resistance assembly, rapid assembly and disassembly of a moisture absorption block are achieved through a self-locking structure of a tail block and a head block, and the variable resistance assembly adjusts inlet and outlet airflow resistance through cooperation of a one-way disc and a guide pipe so as to optimize airflow distribution. According to the electric appliance cabinet, active forced circulation of air in the cabinet, efficient two-way dehumidification, convenient maintenance and intelligent airflow management are achieved, and the problems that a traditional passive dehumidification mode is low in efficiency, uneven and inconvenient to maintain are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of electrical appliance cabinet technology, and more specifically, to a moisture-proof electrical appliance cabinet. Background Technology

[0002] In existing technologies, the dehumidification of electrical cabinets mostly adopts a passive adsorption method by placing solid desiccants (such as silica gel, calcium chloride, etc.) in the cabinet cavity. Its working principle relies on the natural convection of air inside the cabinet and the slow diffusion of water molecules to the surface of the desiccant. However, this static or quasi-static dehumidification mode has a fundamental efficiency bottleneck. Due to the lack of active air circulation, the air flow inside the cabinet is generally poor. Especially in cabinets with complex structures, dense equipment, or large spaces, corners far from the desiccant and sealed cavities are prone to forming dead zones for air circulation, resulting in persistently high local humidity and an uneven humidity field. This makes it impossible for the desiccant to effectively reach and treat the moisture in high humidity areas, and its actual dehumidification efficiency is far lower than the theoretical adsorption capacity. In addition, the desiccants in existing devices are usually fixed in simple trays or mesh bags, and their contact area and contact method with the air are not optimized, further limiting the moisture absorption rate and capacity. This makes it difficult for the overall dehumidification effect to meet the stringent requirements of precision electrical equipment for low humidity operating environments.

[0003] More importantly, existing dehumidification devices have shortcomings in terms of maintainability. Once the desiccant block is saturated, it needs to be replaced in time to restore dehumidification capacity. However, common designs do not fully consider the convenience of replacement operations. Replacement often requires disassembling some parts of the saturated desiccant, which is a cumbersome process and may interrupt the normal operation of the equipment inside the cabinet. Therefore, there is an urgent need for a dehumidification device that can forcibly promote air circulation inside the cabinet to improve the uniformity and efficiency of dehumidification, and integrate convenient replacement functions. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides a dehumidifying appliance cabinet to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a dehumidifying appliance cabinet, comprising a cabinet body, an active mechanism, and a replacement mechanism; The active mechanism includes a symmetrical component and a diffusion component. The active mechanism can actively drive the air circulation inside the cabinet, and dehumidify the air during circulation, thereby ensuring the dehumidification effect. The symmetrical component can cycle through the processes of air intake and exhaust, and absorbs moisture from the air during both processes, thereby ensuring the effectiveness of its use. The diffusion component allows air to be diffused to a more distant area during circulation, avoiding the absorption of moisture only in the nearby area and improving the overall internal moisture absorption effect. The replacement mechanism includes a fixed component and a variable resistance component. The replacement mechanism improves the convenience of maintenance and distinguishes the speed of air intake and exhaust, enabling more efficient air circulation inside the cabinet. The fixing components ensure easy replacement of the corresponding moisture-absorbing parts, improving the convenience of installation; The variable resistance component changes the flow rate of air intake and exhaust, and the different flow resistances allow the air inside the cabinet to flow fully, ensuring the moisture absorption effect.

[0006] Preferably, the symmetrical component includes a top plate and a bottom plate, which are detachably fixed together. The top plate is fixedly installed inside the cabinet, and a motor is fixedly installed on the top plate. A circulation sleeve is installed in each of the top plate and the bottom plate.

[0007] Preferably, each of the circulating sleeves has multiple cavities at equal intervals, each cavity is sealed and slidably connected to a piston rod, and each piston rod is equipped with a top spring, which abuts against the cavity.

[0008] Preferably, an intermediate shaft is rotatably arranged between the two circulating sleeves, the drive end of the motor is connected to the intermediate shaft, and high and low plates are symmetrically arranged at both ends of the intermediate shaft, with the piston rod abutting against the high and low plates respectively.

[0009] Preferably, the diffusion assembly includes a diffusion cone mounted on the intermediate shaft, with impellers symmetrically arranged at both ends of the diffusion cone. When the impellers on both sides rotate, the circulating air generated will be discharged outward along the diffusion cone to enhance the circulation effect.

[0010] Preferably, the fixing component includes multiple T-tubes, and each T-tube is connected to two coaxially arranged cavities at both ends. Each T-tube is threaded with a fixing tube, and the inner wall of the fixing tube is provided with multiple one-way grooves along the circumference. Each one-way groove is slidably connected with a tail block.

[0011] Preferably, each of the tail blocks is provided with a tail spring, and the tail spring is pressed into the one-way groove. The multiple tail blocks are fitted together to hold the moisture-absorbing block. Multiple stop plates are installed in the fixing tube. The moisture-absorbing block is attached to the stop plate. A spring is provided in the fixing tube. A telescopic rod is attached to the spring. The telescopic rod passes through the stop plate and presses against the moisture-absorbing block.

[0012] Preferably, a head block is slidably connected within the one-way groove, and an intermediate spring is installed between the head block and the tail block. A release groove is provided inside the fixing tube, and a release rod is slidably connected within the release groove. When it is necessary to release the connection, the release rod is inserted into the release groove, and the release rod pushes against the head block to release the clamping fixation between the tail block and the moisture-absorbing block.

[0013] Preferably, the variable resistance assembly includes a unidirectional tube, on the outer wall of which a plurality of embedded blocks are installed at equal intervals, and the embedded blocks are slidably connected in the unidirectional groove, and the plurality of head blocks are locked on the embedded blocks.

[0014] Preferably, a guide sleeve is coaxially disposed inside the one-way tube, a guide tube is slidably connected inside the guide sleeve, a one-way disc is disposed on the guide tube, the one-way disc is fitted inside the one-way tube, and a return spring is sleeved on the guide tube, with the two ends of the return spring abutting against the one-way disc and the guide sleeve, respectively.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a moisture-proof appliance cabinet, which has the following beneficial effects: This invention achieves forced dehumidification and efficient two-stage dehumidification of the air inside the cabinet through an innovative symmetrical piston-type active circulation mechanism. Its motor drives the high and low plates to rotate continuously, causing multiple chambers and piston rods to periodically perform intake and exhaust strokes. This allows external humid air to be actively drawn in and flow through the moisture-absorbing block to complete the first dehumidification. Subsequently, during the exhaust stroke, the same stream of air flows through the moisture-absorbing block again for a second deep dehumidification. This "one in, one out, two dehumidification" two-stage processing mechanism significantly improves the dehumidification efficiency and thoroughness of a single cycle compared to the traditional static adsorption method, and can reduce the humidity inside the cabinet to a safe threshold more quickly.

[0016] This invention utilizes a diffusion component to significantly enhance the uniformity of dry air distribution and circulation intensity within the cabinet. Symmetrically arranged impellers rotate synchronously with the main shaft, and the resulting airflow is guided and accelerated by the diffusion cone to the far end of the cabinet. This active air supply design breaks through the limitations of relying solely on natural convection, effectively disturbing and replacing stagnant humid air in densely populated areas, corners, and dead zones of electrical components. This ensures a uniform decrease in humidity throughout the entire cabinet space, avoids the formation of localized high-humidity points, and provides comprehensive and balanced drying protection for precision electrical equipment.

[0017] The replacement mechanism designed in this invention greatly improves the convenience and reliability of maintenance operations. The fixing component utilizes the self-adaptive clamping and one-way self-locking principle of the tail block under the action of the tail spring to ensure that the moisture-absorbing block can be firmly fixed and controlled only by the operation of the dedicated release rod. The variable resistance component achieves quick connection through the snap-fit ​​between the head block and the embedded block. This modular design of "one-insert-one-lock" makes it possible to remove the saturated moisture-absorbing block and install the new block without any tools. The whole process is clean, fast and will not interfere with other equipment in the cabinet, significantly reducing the difficulty of operation and maintenance and time costs.

[0018] The variable resistance component of this invention achieves different flow resistance characteristics during the intake and exhaust phases through flow channel design, thereby optimizing the airflow dynamics. During the intake phase, the one-way disc lifts under negative pressure to allow a large flow rate to pass through to meet the rapid intake requirements. During the exhaust phase, the one-way disc seals so that the airflow is ejected at high speed only from the narrow diameter guide tube. This design reduces system resistance and increases circulating air volume during intake, and generates a high-speed jet during exhaust to promote the long-distance delivery and mixing of dry air, thereby enhancing the air circulation and displacement effect without increasing additional energy consumption.

[0019] This invention improves dehumidification performance while also taking into full account safety and economy. The entire active circulation and dehumidification process is achieved through a purely mechanical structure, without the need for complex control systems or additional duct modifications. It is reliable in operation and low in noise, making the operation and maintenance of the entire dehumidification system more precise, economical and sustainable, and has high practical value and promotion potential. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a moisture-removing electrical cabinet according to the present invention; Figure 2 This is a schematic diagram of the structure of the top plate and the bottom plate in this invention; Figure 3 This is a cross-sectional view of the top and bottom plates in this invention. Figure 4 This is a cross-sectional view of the recirculating sleeve in this invention; Figure 5 This is a schematic diagram of the high and low disks and impeller in this invention; Figure 6 This is a schematic diagram of the structure of the fixed pipe and the tee pipe in this invention; Figure 7 This is a cross-sectional view of the fixed tube and the one-way tube in this invention; Figure 8 This is a cross-sectional view of the fixing tube in this invention; Figure 9 This is a cross-sectional view of the one-way tube and the tail block in this invention. Figure 10 This is a cross-sectional view of the unidirectional tube in this invention.

[0021] In the diagram: 11. Cabinet; 21. Symmetrical assembly; 22. Top plate; 23. Bottom plate; 24. Motor; 25. Circulation sleeve; 26. Cavity; 27. Piston rod; 28. Top spring; 29. ​​Intermediate shaft; 31. Diffusion assembly; 32. Diffusion cone; 33. Impeller; 41. Fixing assembly; 42. T-pipe; 43. Fixing pipe; 44. One-way groove; 45. Tail block; 46. Tail spring; 47. Moisture-absorbing block; 48. Stop plate; 49. Spring; 51. Variable resistance assembly; 52. One-way pipe; 53. Embedded block; 54. Guide sleeve; 55. Guide pipe; 56. One-way disc; 57. Reset spring; 210. High and low plate; 410. Telescopic rod; 411. Head block; 412. Intermediate spring; 413. Release groove; 414. Release rod. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] Please see Figures 1 to 10 This embodiment aims to solve the problems of low passive moisture absorption efficiency, poor air circulation, and inconvenient replacement of desiccant in the prior art. By integrating an active mechanism that can force the air circulation in the cabinet and perform two-way desiccant removal, and a replacement mechanism that facilitates quick replacement of desiccant and can adjust airflow resistance, it achieves efficient and uniform treatment of humid air in the cabinet and convenient maintenance, ensuring a dry environment for the operation of electrical equipment.

[0026] The dehumidifying appliance cabinet includes a cabinet body 11 serving as a container, and an active mechanism and a replacement mechanism installed inside it. The active mechanism is used to force air circulation and dehumidify the air during both the intake and exhaust processes. It consists of a symmetrical component 21 and a diffusion component 31. The replacement mechanism is used to conveniently replace the desiccant and adjust the airflow to optimize the circulation effect. It consists of a fixed component 41 and a variable resistance component 51.

[0027] The symmetrical component 21 includes a top plate 22 fixedly installed inside the top of the cabinet 11 and a bottom plate 23 detachably fixed to the top plate 22. A motor 24 is fixedly installed on the top plate 22. Circulating sleeves 25 are installed in the top plate 22 and the bottom plate 23 respectively. Multiple cavities 26 are equally spaced along the circumference in each circulating sleeve 25. A piston rod 27 is slidably connected in each cavity 26. A top spring 28 is installed on the piston rod 27 and abuts against the end of the cavity 26. An intermediate shaft 29 driven by the motor 24 is rotatably arranged between the two circulating sleeves 25. High and low plates 210 are symmetrically fixed at both ends of the intermediate shaft 29. The end of each piston rod 27 abuts against the surface of the corresponding high and low plate 210.

[0028] The diffuser assembly 31 includes a diffuser cone 32 fixedly installed in the middle of the intermediate shaft 29. Impellers 33 are symmetrically installed at both ends of the diffuser cone 32. The rotation of the impellers 33 can blow air outward along the conical surface of the diffuser cone 32.

[0029] The fixing assembly 41 includes multiple T-tubes 42. Each T-tube 42 has two ends connected to two coaxially arranged cavities 26 on the top plate 22 and bottom plate 23, respectively. A fixing tube 43 is vertically threaded to the middle of each T-tube 42. Multiple one-way grooves 44 are formed along the circumference of the inner wall of the fixing tube 43. A tail block 45 is slidably connected within each one-way groove 44. A tail spring 46 is connected to the tail block 45 and pressed against the one-way groove 44. All tail blocks 45 together clamp and fix a columnar moisture-absorbing block 47. Multiple [other components] are also fixed inside the fixing tube 43. The stop plate 48 is used to limit the axial position of the moisture-absorbing block 47. The bottom of the fixed tube 43 is provided with a spring 49, and a telescopic rod 410 is connected to the spring 49. The telescopic rod 410 passes through the stop plate 48 and presses against the bottom of the moisture-absorbing block 47. A head block 411 is also slidably connected in the one-way groove 44. An intermediate spring 412 is connected between the head block 411 and the tail block 45. A release groove 413 is opened on the tube wall of the fixed tube 43. A release rod 414 can be inserted into the release groove 413 and slidably limited. When the release rod 414 is inserted to a specific depth, it can push the head block 411 to move.

[0030] The variable resistance assembly 51 includes a one-way tube 52 that can be inserted into the upper end of the fixed tube 43. Multiple embedded blocks 53 are fixed at equal intervals on the outer wall of the one-way tube 52. The embedded blocks 53 can slide along the one-way groove 44 inside the fixed tube 43. When the one-way tube 52 is inserted into place, the head block 411 is locked onto the embedded block 53 under the action of the intermediate spring 412. A guide sleeve 54 is coaxially provided inside the one-way tube 52. A guide tube 55 is slidably connected inside the guide sleeve 54. A one-way disk 56 is fixed at the top end of the guide tube 55. The edge of the one-way disk 56 can form a seal with the inner wall of the one-way tube 52. A return spring 57 is sleeved on the guide tube 55. The two ends of the return spring 57 abut against the lower surface of the one-way disk 56 and the upper end face of the guide sleeve 54, respectively.

[0031] The working process and core principle of the electrical cabinet are as follows: The starter motor 24 drives the intermediate shaft 29 to rotate. The intermediate shaft 29 drives the high and low plates 210 at both ends to rotate synchronously. Due to the varying heights of the high and low plates 210, their rotation periodically pushes or releases the piston rods 27 against them, causing a periodic change in the volume of the corresponding chamber 26, thus achieving a continuous intake and exhaust process. When the volume of a certain chamber 26 increases (intake stroke), air inside the cabinet is drawn in through the connected three-way pipe 42. When the air flows through the moisture-absorbing block 47 in the fixed pipe 43, the moisture is absorbed for the first time, completing the intake dehumidification. When the volume of the cavity 26 decreases (exhaust stroke), the initially dried air is compressed and discharged, flows through the moisture-absorbing block 47 again for the second dehumidification, and then is discharged through the one-way pipe 52. During this process, the intermediate shaft 29 simultaneously drives the impellers 33 at both ends to rotate, and the generated airflow is guided along the diffuser cone 32 and accelerated to blow towards the far end of the cabinet, promoting the forced large circulation of air inside the entire cabinet 11 and avoiding localized damp dead corners.

[0032] During the intake stroke, a negative pressure is generated in the cavity 26. This negative pressure acts on the one-way disc 56, causing it to overcome the elastic force of the return spring 57 and lift up, releasing the seal with the inner wall of the one-way tube 52. External humid air can be rapidly drawn in through the gaps at the edges of the guide tube 55 and the one-way disc 56 simultaneously. The flow resistance is small to ensure the intake volume. During the exhaust stroke, a positive pressure is generated in the cavity 26. Under the action of air pressure and the return spring 57, the one-way disc 56 tightly adheres to the inner wall of the one-way tube 52 to form a seal. Dry air can only be ejected at high speed from the narrower guide tube 55. The higher ejection speed helps to deliver dry air to a more distant area, enhancing the mixing and displacement effect with humid air.

[0033] When the desiccant block 47 is saturated and needs replacement, the maintenance personnel insert a special release rod 414 into the release slot 413 of the fixing tube 43 and push it. The top of the release rod 414 pushes all the head blocks 411 to slide inward. Through the linkage of the intermediate spring 412, all the tail blocks 45 retract inward simultaneously, thereby releasing the head blocks 411 from the inner block 53 and the tail blocks 45 from the desiccant block 47. At this time, the one-way tube 52 and the inner block 53 on it can be pulled upward as a whole. Then, under the push of the spring 49 at the bottom of the fixing tube 43, the telescopic rod 410 pushes the saturated desiccant block 47 upward, making it easier to remove. When removing and installing a new moisture-absorbing block 47, place it into the fixing tube 43 and push it down until it abuts against the stop plate 48. During this process, the outer wall of the moisture-absorbing block 47 pushes open the tail block 45. The tail block 45 resets under the action of the tail spring 46 and tightly clamps the moisture-absorbing block 47. Due to the sliding direction design of the tail block 45, it forms a one-way self-locking mechanism for the moisture-absorbing block 47, which can prevent it from loosening under the action of airflow. Finally, insert the one-way tube 52 into the fixing tube 43 along the one-way groove 44. The embedded block 53 on it moves down until it is clamped and fixed by the head block 411, thus completing the replacement. The entire replacement process does not require tools to disassemble the threads or perform complicated operations, making it simple and quick.

[0034] Working principle summary: This invention achieves synchronous intake and exhaust of the dual chambers 26 through the symmetrically arranged high and low plates 210 and piston rod 27 mechanism, and connects the desiccant block 47 in series in the air path, so that the air undergoes dehumidification twice during the intake and exhaust process, which significantly improves the dehumidification efficiency. Combined with the impeller 33 and diffuser cone 32, the overall air circulation in the cabinet is enhanced. At the same time, the fixing component 41 with self-locking structure and the replacement mechanism of variable resistance one-way valve ensure the convenience and reliability of desiccant replacement, and optimize the airflow distribution by adjusting the intake and exhaust flow resistance, thus achieving efficient, uniform and easy-to-maintain intelligent dehumidification.

[0035] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof appliance cabinet, comprising a cabinet body (11), characterized in that: This also includes both active and replacement mechanisms; The active mechanism includes a symmetrical component (21) and a diffusion component (31). The active mechanism can actively drive the air circulation inside the cabinet (11) and dehumidify the air during circulation, thereby ensuring the dehumidification effect. The symmetrical component (21) can cycle through the processes of air intake and exhaust, and absorbs moisture from the air during both processes, thereby ensuring the effectiveness of its use. The diffusion component (31) allows air to be diffused to a more distant area during circulation, avoiding only absorbing moisture in the nearby area and improving the overall internal moisture absorption effect. The replacement mechanism includes a fixed component (41) and a variable resistance component (51). The replacement mechanism improves the convenience of maintenance and differentiates the speed of air intake and exhaust, enabling more efficient air circulation inside the cabinet. The fixing component (41) ensures that the corresponding moisture-absorbing parts can be easily replaced, thus improving the ease of installation; The variable resistance component (51) changes the flow rate of air intake and exhaust, and the air inside the cabinet (11) is fully circulated by different flow resistances to ensure the moisture absorption effect.

2. The dehumidifying appliance cabinet according to claim 1, characterized in that: The symmetrical component (21) includes a top plate (22) and a bottom plate (23), which are detachably fixed together. The top plate (22) is fixedly installed inside the cabinet (11), and a motor (24) is fixedly installed on the top plate (22). A circulation sleeve (25) is installed in each of the top plate (22) and the bottom plate (23).

3. The dehumidifying appliance cabinet according to claim 2, characterized in that: Each of the circulating sleeves (25) has multiple cavities (26) at equal intervals. Each cavity (26) is sealed and slidably connected with a piston rod (27). Each piston rod (27) is equipped with a top spring (28), and the top spring (28) abuts against the cavity (26).

4. The dehumidifying appliance cabinet according to claim 3, characterized in that: An intermediate shaft (29) is rotatably arranged between the two circulating sleeves (25). The drive end of the motor (24) is connected to the intermediate shaft (29). High and low plates (210) are symmetrically arranged at both ends of the intermediate shaft (29), and the piston rod (27) abuts against the high and low plates (210).

5. The dehumidifying appliance cabinet according to claim 4, characterized in that: The diffusion assembly (31) includes a diffusion cone (32) installed on the intermediate shaft (29). Impellers (33) are symmetrically arranged at both ends of the diffusion cone (32). When the impellers (33) on both sides rotate, the circulating air generated will be discharged outward along the diffusion cone (32) to enhance the circulation effect.

6. The dehumidifying appliance cabinet according to claim 3, characterized in that: The fixing component (41) includes multiple three-way pipes (42), and each three-way pipe (42) is connected to two coaxially arranged cavities (26) at both ends. Each three-way pipe (42) is threaded with a fixing pipe (43). Multiple one-way grooves (44) are arranged along the circumference on the inner wall of the fixing pipe (43). Each one-way groove (44) is slidably connected with a tail block (45).

7. A moisture-removing appliance cabinet according to claim 6, characterized in that: Each of the tail blocks (45) is provided with a tail spring (46), and the tail spring (46) is pressed into the one-way groove (44). Multiple tail blocks (45) are fitted together to hold a moisture-absorbing block (47). Multiple stop plates (48) are installed in the fixing tube (43). The moisture-absorbing block (47) is attached to the stop plate (48). A spring (49) is provided in the fixing tube (43). A telescopic rod (410) is attached to the spring (49). The telescopic rod (410) passes through the stop plate (48) and presses against the moisture-absorbing block (47).

8. The dehumidifying appliance cabinet according to claim 7, characterized in that: A head block (411) is slidably connected within the one-way groove (44), and an intermediate spring (412) is installed between the head block (411) and the tail block (45). A release groove (413) is provided inside the fixing tube (43), and a release rod (414) is slidably connected within the release groove (413). When it is necessary to release the connection, the release rod (414) is inserted into the release groove (413), and the release rod (414) is pushed against the head block (411) to release the clamping and fixing between the tail block (45) and the moisture-absorbing block (47).

9. A moisture-removing appliance cabinet according to claim 8, characterized in that: The variable resistance assembly (51) includes a one-way tube (52), on the outer wall of the one-way tube (52) a plurality of embedded blocks (53) are installed at equal intervals, and the embedded blocks (53) are slidably connected in the one-way groove (44), and a plurality of head blocks (411) are stuck on the embedded blocks (53).

10. A dehumidifying appliance cabinet according to claim 9, characterized in that: A guide sleeve (54) is coaxially arranged inside the one-way tube (52). A guide tube (55) is slidably connected inside the guide sleeve (54). A one-way disc (56) is arranged on the guide tube (55). The one-way disc (56) fits inside the one-way tube (52). A return spring (57) is sleeved on the guide tube (55). The two ends of the return spring (57) abut against the one-way disc (56) and the guide sleeve (54) respectively.

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