Detachable moisture-proof dehumidification device for electrical cabinet

Abstract

The invention discloses a detachable moisture-proof dehumidification device for an electrical cabinet, which comprises a cabinet body, a telescopic mechanism, a driving mechanism and a drying box, and is characterized in that a heat dissipation plate is arranged at the top of the cabinet body, and a fan is arranged on the heat dissipation plate; the telescopic mechanism comprises fixing blocks, a positioning pin, a threaded rod, an internal threaded block and a sliding block, the two fixing blocks are connected with the inner wall of the cabinet body, the two ends of the positioning pin are connected with the fixing blocks respectively, the internal threaded block and the sliding block are slidably connected with the positioning pin, the first end of the threaded rod is pivotally connected with the fixing blocks, and the second end of the threaded rod is pivotally connected with the sliding block. The second end of the threaded rod penetrates through the other fixed block and is pivotally connected with the fixed block, the internal threaded block is in threaded connection with the threaded rod, the sliding block is in transmission connection with the internal threaded block through a guide part, the driving mechanism comprises a rotating handle, a connecting rod, a first bevel gear and a second bevel gear, the rotating handle is connected with the connecting rod, and the connecting rod is connected with the first bevel gear. The detachable moisture-proof dehumidification device for the electrical cabinet has the advantages of being good in drying effect and convenient to maintain.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment protection technology, and more particularly to a detachable moisture-proof and dehumidifying device for electrical cabinets. Background Technology

[0002] During operation, electrical cabinets are prone to humid air buildup due to changes in ambient humidity or diurnal temperature variations. This can lead to deterioration of electrical component insulation, corrosion of metal parts, relay malfunctions, and even short circuits, severely impacting the safe and stable operation of the equipment. To address this, passive dehumidification devices such as desiccant boxes are typically installed inside the cabinet to absorb moisture. However, traditional structures are mostly fixed, with desiccant boxes scattered throughout. Replacing them requires individual disassembly and reassembly, which is inconvenient and time-consuming. Especially in high-temperature environments, timely maintenance is difficult to guarantee, resulting in inconsistent dehumidification effects and low maintenance efficiency. Summary of the Invention

[0003] This invention is based on the inventor's discoveries and understanding of the following facts and problems: The desiccant is in a fixed position, resulting in poor drying effect.

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a detachable moisture-proof and dehumidifying device for electrical cabinets, comprising a cabinet body, a telescopic mechanism, a drive mechanism, and a drying box. A heat dissipation plate is installed on the top of the cabinet body, and a fan is mounted on the heat dissipation plate. The telescopic mechanism includes a fixed block, a positioning pin, a threaded rod, an internal threaded block, and a slider. Two fixed blocks are connected to the inner wall of the cabinet body. The two ends of the positioning pin are respectively connected to one of the fixed blocks. The internal threaded block and the slider are slidably connected to the positioning pin. The first end of the threaded rod is pivotally connected to the fixed block, and the second end of the threaded rod passes through the other fixed block and is pivotally connected to it. The internal threaded block is threadedly connected to the threaded rod. The slider and the internal threaded block are connected via a guide. The drive mechanism includes a throttle, a connecting rod, a first bevel gear, and a second bevel gear. The throttle is connected to the connecting rod, and the connecting rod is connected to the first bevel gear. The second bevel gear is arranged at the second end of the threaded rod and meshes with the first bevel gear. The drying box is detachably connected to the slider via a mounting plate.

[0006] The present invention has the advantages and technical benefits of good drying effect and convenient maintenance.

[0007] In some embodiments, there are at least two sliders, and the sliders are connected to adjacent sliders via the guide.

[0008] In some embodiments, the guide includes a first guide rod and a second guide rod, a first end of the first guide rod being rotatably connected to the internally threaded block or slider, a second end of the first guide rod being rotatably connected to the first end of the second guide rod, and a second end of the second guide rod being rotatably connected to the slider.

[0009] In some embodiments, the connecting rod extends vertically, a portion of the connecting rod penetrates the cabinet, and a bearing sleeve is fitted onto the connecting rod to support the connecting rod and seal the cabinet.

[0010] In some embodiments, a bearing sleeve is provided at the connection between the threaded rod and the fixed block, and the bearing sleeve is used to cooperate with the rotation of the threaded rod.

[0011] In some embodiments, a quick-release mechanism is further included, comprising a mounting block, a mounting plate, a positioning block, a spring, a button, a positioning post, and a limiting block. The mounting block is fixedly connected to the slider. The positioning block is arranged on the surface of the mounting block away from the slider. The two ends of the spring are respectively connected to the positioning block and the button. A limiting groove is provided on the mounting block. The positioning post passes through the button perpendicular to the axial direction of the button and enters the limiting groove. The limiting block is arranged on the mounting plate corresponding to the limiting groove. The positioning post cooperates with the limiting groove and the limiting block to lock and unlock the mounting block and the mounting plate.

[0012] In some embodiments, the mounting plate is provided with a plug-in slot that matches the drying box, and one end of the drying box is provided with a plug-in protrusion that mates with the plug-in slot, at least a portion of the plug-in protrusion being able to enter the plug-in slot.

[0013] In some embodiments, an airflow guiding mechanism is further included, which includes an air guide plate and a centrifugal fan. The air guide plate is arranged below the heat dissipation plate and is pivotally connected to the side wall of the cabinet. The centrifugal fan is arranged at the bottom of the cabinet to deliver air upwards.

[0014] In some embodiments, a magnetic coupling drive mechanism is further included, which includes a driving wheel, a driven wheel, a first magnet, and a second magnet. The driven wheel is sleeved on the end of the connecting rod away from the first bevel gear. The first magnet is arranged on the driven wheel, and the second magnet is arranged on the driving wheel. The second magnet is arranged on the outside of the cabinet, and the second magnet is magnetically attracted to the first magnet.

[0015] In some embodiments, the driving wheel and the driven wheel are provided with a plurality of grooves for embedding the first magnet and the second magnet. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a detachable moisture-proof and dehumidifying device for an electrical cabinet according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the telescopic mechanism of the detachable moisture-proof and dehumidifying device for electrical cabinets according to an embodiment of the present invention.

[0018] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0019] Figure 4 This is a schematic diagram of the quick-release mechanism of the detachable moisture-proof and dehumidifying device for electrical cabinets according to an embodiment of the present invention.

[0020] Figure 5 This is an exploded view of the quick-release mechanism of the detachable moisture-proof and dehumidifying device for electrical cabinets according to an embodiment of the present invention.

[0021] Figure 6 This is a cross-sectional schematic diagram of the quick-release mechanism of the detachable moisture-proof and dehumidifying device for electrical cabinets according to an embodiment of the present invention.

[0022] Attached reference numerals: 1. Cabinet; 101. Heat sink; 102. Fan; 2. Telescopic mechanism; 201. Fixed block; 202. Locating pin; 203. Threaded rod; 204. Internal threaded block; 205. Slider; 206. Mounting plate; 3. Drive mechanism; 301. Throttle; 302. Connecting rod; 303. First bevel gear; 304. Second bevel gear; 4. Drying box; 5. First guide rod; 6. Second guide rod; 7. Quick-release mechanism; 701. Mounting block; 702. Limiting groove; 703. Positioning block; 704. Spring; 705. Button; 706. Positioning post; 707. Limiting block. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] An embodiment of the present invention provides a detachable moisture-proof and dehumidifying device for an electrical cabinet, comprising a cabinet body 1, a telescopic mechanism 2, a drive mechanism 3, and a drying box 4. A heat dissipation plate 101 is installed on the top of the cabinet body 1, and a fan 102 is mounted on the heat dissipation plate 101. The telescopic mechanism 2 includes a fixing block 201, a positioning pin 202, a threaded rod 203, an internally threaded block 204, and a slider 205. Two fixing blocks 201 are connected to the inner wall of the cabinet body 1. The two ends of the positioning pin 202 are respectively connected to one of the fixing blocks 201. The internally threaded block 204 and the slider 205 are slidably connected to the positioning pin 202. The first end of the threaded rod 203 is pivotally connected to the fixing block 201. The second end of the threaded rod 203 passes through another fixed block 201 and is pivotally connected to the fixed block 201. The internal threaded block 204 is threadedly connected to the threaded rod 203. The slider 205 is connected to the internal threaded block 204 through a guide. The drive mechanism 3 includes a throttle 301, a connecting rod 302, a first bevel gear 303, and a second bevel gear 304. The throttle 301 is connected to the connecting rod 302, the connecting rod 302 is connected to the first bevel gear 303, and the second bevel gear 304 is arranged at the second end of the threaded rod 203 and meshes with the first bevel gear 303. The drying box 4 is detachably connected to the slider 205 through a mounting plate 206.

[0025] The heat dissipation plate 101 on the top of the cabinet 1 works in conjunction with the fan 102 to quickly expel the high-temperature air inside the cabinet, effectively reducing the temperature difference inside the cabinet and reducing the probability of condensation of humid air, thus reducing the impact of moisture on electrical components from the source. The two fixed blocks 201 in the telescopic mechanism 2 provide a stable foundation for the positioning pin 202 and the threaded rod 203. The positioning pin 202 plays a precise guiding role for the internal threaded block 204 and the slider 205, ensuring that the two can only slide smoothly along the axial direction of the positioning pin 202. The threaded connection between the threaded rod 203 and the internal threaded block 204 can convert the rotational motion into linear motion, and then realize the transmission between the internal threaded block 204 and the slider 205 through the guide component. This can drive the slider 205 to move closer or further away synchronously, so that the drying boxes 4 scattered at different heights inside the cabinet can be concentrated or evenly dispersed. This solves the problem of the traditional drying boxes 4 being scattered and cumbersome to disassemble and install one by one, and greatly improves the convenience and efficiency of maintenance. The throttle 301 provides the operator with a point of leverage, the connecting rod 302 transmits power, and the meshing of the first bevel gear 303 and the second bevel gear 304 completes the change of motion direction, ensuring efficient power transmission to the threaded rod 203. The drying box 4 is detachably connected to the slider 205 via the mounting plate 206, facilitating individual replacement or replenishment of the desiccant. This effectively prevents malfunctions such as decreased insulation performance, corrosion of metal parts, and relay malfunctions, improving the safety and stability of electrical equipment operation. In some embodiments, there are at least two sliders 205, and the sliders 205 are connected to adjacent sliders 205 via guides.

[0026] Specifically, the arrangement of multiple sliders 205 allows the drying box 4 to form multi-point distributed dehumidification in the height direction of the cabinet, covering different areas above and below the cabinet 1, avoiding the local dampness problem caused by the limited dehumidification range of a single drying box 4, and improving the uniformity of dehumidification in the cabinet; adjacent sliders 205 are connected by guides, which can sequentially transmit the driving force of the internal thread block 204 to all sliders 205, ensuring that all sliders 205 move closer or further away synchronously and smoothly, avoiding jamming or displacement due to uneven force on a single slider 205, ensuring that the drying box 4 is on the same operating plane when it is gathered, and accurately returns to the preset dehumidification point when it is dispersed. At the same time, the linkage of the guides can balance the force on each slider 205, reduce wear during transmission, and extend the service life of the telescopic mechanism 2.

[0027] Optionally, a buffer spring 704 can be added between adjacent sliders 205. The buffer spring 704 is sleeved on the outside of the guide member, which can absorb the impact force when the sliders 205 move synchronously, avoid collision between the sliders 205 due to rapid approach, and at the same time play a shock absorption role in the vibration environment of the equipment, preventing the connection between the drying box 4 and the mounting plate 206 from becoming loose.

[0028] In some embodiments, the guide includes a first guide rod 5 and a second guide rod 6. The first end of the first guide rod 5 is rotatably connected to the internal thread block 204 or the slider 205, the second end of the first guide rod 5 is rotatably connected to the first end of the second guide rod 6, and the second end of the second guide rod 6 is rotatably connected to the slider 205.

[0029] Specifically, the first guide rod 5 and the second guide rod 6 are hinged together by a pivot. The change in the angle between the first guide rod 5 and the second guide rod 6 alters the distance between the internal thread block 204 and the slider 205, uniformly transmitting the linear motion of the internal thread block 204 to each slider 205. The hinged connection of the two guide rods provides a buffer for the transmission. When the guide member connects two sliders 205, the first guide rod 5 and the second guide rod 6 are each connected to one slider 205. As the distance between the two sliders 205 shortens, the angle between the first guide rod 5 and the second guide rod 6 decreases. Thus, driven by the internal thread block, multiple sliders 205 move downwards along the guide rod. As the multiple sliders 205 further move downwards and converge, the first guide rod 5 and the second guide rod 6 rotate, reducing space occupation.

[0030] Optionally, an electric push rod is provided, with its telescopic end connected to a slider 205. The electric push rod extends and retracts, pushing the slider 205 closer to or further away from the internal thread block 204 to change the spacing between multiple sliders 205. Furthermore, the electric push rod can adjust the position of the sliders 205, achieving secondary adjustment and changing the height of the drying box 4. It also provides some support for the sliders 205, reducing slider 205 offset and locating pin 202 wear caused by vibration or load during long-term use, thus improving the overall stability and service life of the telescopic mechanism 2. The extension direction of the electric push rod is the same as the axial direction of the locating pin 202.

[0031] In some embodiments, the connecting rod 302 extends vertically, and a portion of the connecting rod 302 penetrates the cabinet 1. A bearing sleeve is fitted onto the connecting rod 302 to support the connecting rod 302 and to seal the cabinet 1.

[0032] Specifically, the vertical arrangement of the connecting rod 302 fully utilizes the longitudinal space inside the cabinet 1, avoiding layout conflicts with horizontally installed electrical components and wiring inside the cabinet. The connecting rod 302 provides stable rotational support, reducing radial sway during rotation, ensuring the meshing accuracy of the first bevel gear 303 and the second bevel gear 304, avoiding transmission jamming or tooth surface wear. Furthermore, the tight fit between the bearing sleeve and the through-hole of the cabinet 1 blocks airflow between the inside and outside of the cabinet, preventing external humid air and dust from entering the cabinet 1, while also preventing dry air from leaking out, thus improving the sealing performance of the cabinet 1. In some embodiments, a bearing sleeve is provided at the connection between the threaded rod 203 and the fixed block 201, and the bearing sleeve is used to cooperate with the rotation of the threaded rod 203.

[0033] Specifically, the bearing sleeve provides stable rotational support for the threaded rod 203, accurately ensuring the coaxiality of the threaded rod 203, reducing its radial runout and vibration during rotation, and preventing the internal thread block 204 from sliding and jamming or the threads from wearing due to the offset of the threaded rod 203, thus ensuring smooth transmission of the telescopic mechanism 2. At the same time, the bearing sleeve transforms the rigid contact between the threaded rod 203 and the fixed block 201 into rolling friction, significantly reducing the frictional resistance when the two rotate relative to each other, reducing energy loss, extending the service life of the threaded rod 203 and the fixed block 201, preventing metal debris generated by friction from contaminating the transmission environment, and preventing debris from entering the threaded mating surface or guide structure and causing jamming.

[0034] In some embodiments, a quick-release mechanism 7 is also included. The quick-release mechanism 7 includes a mounting block 701, a positioning block 703, a spring 704, a button 705, a positioning post 706, and a limiting block. The mounting block 701 is fixedly connected to the slider 205. The positioning block 703 is arranged on the side surface of the mounting block 701 away from the slider 205. The two ends of the spring 704 are respectively connected to the positioning block 703 and the button 705. A limiting groove 702 is provided on the mounting block 701. The positioning post 706 passes through the button 705 perpendicular to the axial direction of the button 705 and enters the limiting groove 702. A limiting block is arranged on the mounting plate 206 corresponding to the limiting groove 702. The positioning post 706 cooperates with the limiting groove 702 and the limiting block to realize the locking and unlocking of the mounting block 701 and the mounting plate 206.

[0035] Specifically, the fixed connection between the mounting block 701 and the slider 205 provides a stable installation base for the quick-release structure. The positioning block 703 provides precise installation positioning for the spring 704 and the button 705. The elastic force of the spring 704 can push the positioning post 706 to always maintain the engagement state with the limiting groove 702 and the limiting block, ensuring reliable connection when the mounting block 701 and the mounting plate 206 are locked, and preventing loosening due to vibration during equipment operation. The positioning post 706 passes vertically through the button 705 and is embedded in the limiting groove 702, forming a double limit with the limiting block on the mounting plate 206. The locking is stable and the force is even. Pressing the button 705 at the same time can compress the spring 704, causing the positioning post 706 to disengage from the engagement between the limiting groove 702 and the limiting block, quickly releasing the lock. The mounting plate 206 and the drying box 4 can be removed without the aid of tools, greatly reducing the difficulty and time of maintenance operations.

[0036] In some embodiments, the mounting plate 206 is provided with a plug-in groove that matches the drying box 4, and one end of the drying box 4 is provided with a plug-in protrusion that mates with the plug-in groove. At least part of the plug-in protrusion can enter the plug-in groove.

[0037] Specifically, the insertion slot provides guidance for the dryer box 4, allowing the insertion protrusion to quickly align and partially enter the slot, simplifying the installation and alignment process of the dryer box 4 and improving assembly efficiency. The close fit between the two forms initial positioning and fixation, preventing lateral displacement of the dryer box 4 after installation. At the same time, the partially inserted structure ensures the connection stability between the dryer box 4 and the mounting plate 206. This eliminates the need for additional fasteners, and with the quick-release mechanism 7, it enables rapid disassembly and assembly of the dryer box 4. This facilitates the replacement of individual dryer boxes 4 and also allows for the removal of the mounting plate 206 as a whole for batch maintenance, further improving the convenience of operation and maintenance. In addition, the small gap of the insertion fit reduces the infiltration of humid air from the connection point, ensuring the dehumidification effect of the dryer box 4.

[0038] In some embodiments, an airflow guiding mechanism is also included, which includes an air guide plate and a centrifugal fan. The air guide plate is arranged below the heat dissipation plate 101 and is pivotally connected to the side wall of the cabinet 1. The centrifugal fan is arranged at the bottom of the cabinet 1 to deliver air upwards.

[0039] Specifically, the airflow guiding mechanism creates a directional circulating airflow within the cabinet, enhancing dehumidification and heat dissipation. A centrifugal fan, positioned at the bottom of cabinet 1, continuously delivers airflow upwards, pushing humid air from the easily damp areas at the bottom of cabinet 1 to the central drying box 4 distribution area. This ensures sufficient contact between moisture and the desiccant, preventing localized corrosion caused by moisture stagnation at the bottom. The air guide plate, with adjustable angle, directs the airflow exhausted by the top fan 102, precisely guiding the dehumidified air to areas with dense electrical components within the cabinet. This also prevents excessive localized temperature differences caused by direct airflow. Simultaneously, in conjunction with the centrifugal fan, a closed-loop circulation system is formed, with air intake at the bottom, dehumidification in the middle, and exhaust at the top. This accelerates air circulation within the cabinet, reduces humidity stratification and dead air zones, resulting in more uniform and efficient dehumidification and heat dissipation.

[0040] In some embodiments, a magnetic coupling drive mechanism 3 is also included. The magnetic coupling drive mechanism 3 includes a driving wheel, a driven wheel, a first magnet, and a second magnet. The driven wheel is sleeved on the end of the connecting rod 302 away from the first bevel gear 303. The first magnet is arranged on the driven wheel, the second magnet is arranged on the driving wheel, and the second magnet is arranged on the outside of the cabinet 1. The second magnet is magnetically attracted to the first magnet.

[0041] Specifically, the magnetic attraction between the driving wheel, driven wheel, and two sets of magnets enables non-contact power transmission. The driven wheel is fixedly connected to the connecting rod 302, while the driving wheel is magnetically attracted to the first magnet on the driven wheel via the second magnet. Torque can be transmitted without a rigid connection, avoiding the sealing hazards when the connecting rod 302 passes through the cabinet 1, significantly improving the sealing performance of the cabinet 1, and effectively preventing the entry of external humid air, dust, or flammable and explosive gases, making it suitable for high humidity, dusty, and explosion-proof environments. Non-contact transmission isolates vibration transmission between the driving and driven sides, reducing the impact of drive mechanism 3 vibration on components such as the connecting rod 302 and bevel gears, ensuring meshing accuracy and transmission stability, while also reducing transmission noise. When jamming occurs on the driven side, the attraction force between the magnets reaches its limit and relative sliding occurs, forming overload protection, preventing damage to components such as bending of the threaded rod 203 and gear wear, and extending the service life of the device.

[0042] In some embodiments, the driving wheel and the driven wheel are provided with a plurality of grooves for embedding a first magnet and a second magnet.

[0043] Specifically, multiple grooves are evenly distributed around the circumference of the driving and driven wheels, which can accurately position the installation position of each magnet, ensuring that the first magnet and the second magnet are magnetically attracted to each other in a one-to-one correspondence. This avoids uneven attraction force or transmission torque fluctuations caused by magnet misalignment, ensuring the smoothness of power transmission. The grooves provide a stable installation space for the magnets, which can be sealed and fixed with epoxy resin after embedding, preventing the magnets from falling off due to vibration during equipment operation. At the same time, it avoids the magnets being directly exposed to moisture and dust, extending their service life. The even arrangement of multiple sets of magnets can enhance the overall magnetic coupling strength, increase the upper limit of transmission torque, and adapt to the telescopic mechanism 2 with a larger load. Compared with single magnet transmission, the force is more even, reducing component wear caused by local magnetic field concentration. At the same time, it makes the driving wheel rotation less strenuous, further improving the ease of operation. In addition, the groove structure is simple to process and can be integrally formed with the driving and driven wheels without adding extra assembly complexity, balancing production efficiency and structural rationality. In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A detachable moisture-proof and dehumidifying device for electrical cabinets, characterized in that, include: The system comprises a cabinet, a telescopic mechanism, a drive mechanism, and a drying box. A heat dissipation plate is mounted on the top of the cabinet, and a fan is mounted on the heat dissipation plate. The telescopic mechanism includes a fixed block, a positioning pin, a threaded rod, an internal threaded block, and a slider. Two fixed blocks are connected to the inner wall of the cabinet. The two ends of the positioning pin are each connected to one of the fixed blocks. The internal threaded block and the slider are slidably connected to the positioning pin. The first end of the threaded rod is pivotally connected to the fixed block, and the second end of the threaded rod passes through the other fixed block and is pivotally connected to it. The internal threaded block is threadedly connected to the threaded rod. The slider and the internal threaded block are connected via a guide. The drive mechanism includes a throttle, a connecting rod, a first bevel gear, and a second bevel gear. The throttle is connected to the connecting rod, and the connecting rod is connected to the first bevel gear. The second bevel gear is located at the second end of the threaded rod and meshes with the first bevel gear. The drying box is detachably connected to the slider via a mounting plate.

2. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 1, characterized in that, There are at least two sliders, and each slider is connected to an adjacent slider via the guide.

3. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 1 or 2, characterized in that, The guide component includes a first guide rod and a second guide rod. The first end of the first guide rod is rotatably connected to the internal threaded block or slider. The second end of the first guide rod is rotatably connected to the first end of the second guide rod. The second end of the second guide rod is rotatably connected to the slider.

4. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 1, characterized in that, The connecting rod extends vertically, and part of the connecting rod passes through the cabinet. A bearing sleeve is fitted on the connecting rod to support the connecting rod and to seal the cabinet.

5. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 1, characterized in that, Bearing sleeves are provided at the connection between the threaded rod and the fixed block, and the bearing sleeves are used to cooperate with the rotation of the threaded rod.

6. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 1, characterized in that, It also includes a quick-release mechanism, which comprises a mounting block, a positioning block, a spring, a button, a positioning post, and a limiting block. The mounting block is fixedly connected to the slider. The positioning block is arranged on the surface of the mounting block away from the slider. The two ends of the spring are respectively connected to the positioning block and the button. A limiting groove is provided on the mounting block. The positioning post passes through the button perpendicular to the axial direction of the button and enters the limiting groove. The limiting block is arranged on the mounting plate corresponding to the limiting groove. The positioning post cooperates with the limiting groove and the limiting block to realize the locking and unlocking of the mounting block and the mounting plate.

7. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 6, characterized in that, The mounting plate is provided with a plug-in slot that matches the drying box. One end of the drying box is provided with a plug-in protrusion that mates with the plug-in slot. At least part of the plug-in protrusion can enter the plug-in slot.

8. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 1, characterized in that, It also includes an airflow guiding mechanism, which includes an air guide plate and a centrifugal fan. The air guide plate is arranged below the heat dissipation plate and is pivotally connected to the side wall of the cabinet. The centrifugal fan is arranged at the bottom of the cabinet to deliver air upwards.

9. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 1, characterized in that, It also includes a magnetic coupling drive mechanism, which includes a driving wheel, a driven wheel, a first magnet and a second magnet. The driven wheel is sleeved on the end of the connecting rod away from the first bevel gear. The first magnet is arranged on the driven wheel, and the second magnet is arranged on the driving wheel. The second magnet is arranged on the outside of the cabinet, and the second magnet is magnetically attracted to the first magnet.

10. The detachable moisture-proof and dehumidifying device for electrical cabinets according to claim 9, characterized in that, The driving wheel and the driven wheel are provided with a plurality of grooves, which are used to embed the first magnet and the second magnet.

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