Variable-frequency fresh air ceiling dehumidifier and automatic drainage system thereof

Abstract

The invention relates to the technical field of dehumidifiers, and discloses a variable-frequency fresh air ceiling dehumidifier and an automatic drainage system thereof, the variable-frequency fresh air ceiling dehumidifier comprises a dehumidification mechanism, and an anti-inclination mechanism is arranged at the bottom end of the dehumidification mechanism. According to the variable-frequency fresh air ceiling dehumidifier and the automatic drainage system thereof, efficient and energy-saving dehumidification is achieved through the built-in variable-frequency compressor, the condenser, the evaporator and the variable-frequency drive, meanwhile, the air quality is improved through the combination of the efficient filter screen and the primary filter screen, the device shell can be opened, maintenance is convenient, positive-pressure drainage is achieved through the internal gradient design, installation is simplified, and the ceiling height is reduced; the indoor space is beautified, the design of a water outlet and a cover plate lock catch simplifies the maintenance process, safety and convenience are achieved, during installation, a hanging bracket is stabilized firstly, then a balancing stand circular level is used for checking levelness, stable operation is ensured, and during inclination, the angle is adjusted by rotating an adjusting screw, condensate water is prevented from being accumulated and leaked, and efficient and stable operation is ensured. The device has the advantages of efficient dehumidification, flexible installation, convenient maintenance and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of dehumidifiers, and particularly to a variable-frequency fresh-air ceiling dehumidifier and its automatic drainage system. Background Art

[0002] The variable-frequency fresh-air ceiling dehumidifier and its automatic drainage system is an advanced device that can significantly improve the indoor environment. By introducing fresh outdoor air and combining with an efficient dehumidification function, the fresh-air dehumidifier can not only effectively adjust the indoor air humidity, avoid mold growth and odor problems caused by dampness, but also significantly improve the air quality, filter out pollutants such as dust and pollen, and provide a fresher and healthier living and working environment for people. Its built-in variable-frequency technology can automatically adjust the working mode according to the real-time change of indoor humidity, which not only ensures the dehumidification effect but also realizes the maximum utilization of energy. The addition of the automatic drainage system further avoids the secondary pollution problem caused by poor drainage of traditional dehumidifiers, ensuring the continuous cleanliness and comfort of the indoor environment. In summary, this ceiling dehumidifier that integrates fresh air, dehumidification and intelligent control is an ideal choice for modern families and workplaces to improve the quality of life and promote a healthy lifestyle.

[0003] However, when the ceiling dehumidifier is not installed horizontally, the condensate collection tray inside it may not maintain the correct tilt angle, which will cause the condensate to accumulate in the collection tray and cannot be smoothly discharged into the drain pipe. Over time, the accumulated condensate may overflow from the collection tray, thus triggering a water leakage phenomenon. Therefore, there is an urgent need for a variable-frequency fresh-air ceiling dehumidifier and its automatic drainage system. Summary of the Invention

[0004] The purpose of the present invention is to provide a variable-frequency fresh-air ceiling dehumidifier and its automatic drainage system to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A variable-frequency fresh-air ceiling dehumidifier and its automatic drainage system, including a dehumidification mechanism, and an anti-tilting mechanism is provided at the bottom end of the dehumidification mechanism;

[0006] The dehumidification mechanism includes a device housing, a air supply vent is provided on the front side of the device housing, a dehumidification chamber is slidably connected to the inner wall of the device housing, a variable-frequency compressor is fixedly connected to the inner wall of the dehumidification chamber, a condenser is provided at one end of the variable-frequency compressor close to the air supply vent, an evaporator is provided at one end of the variable-frequency compressor away from the condenser, a DC fan is fixedly connected to the rear side of the dehumidification chamber, a variable-frequency drive is electrically connected to the surface of the variable-frequency compressor, a high-efficiency filter is fixedly connected to the inner wall of the device housing, a primary filter is fixedly connected to the rear side of the high-efficiency filter, and a fresh-air damper is provided at one end of the primary filter away from the high-efficiency filter;

[0007] The anti-tilting mechanism includes a mounting frame. A support frame is fixedly connected to the bottom end of the mounting frame. One end surface of the support frame away from the mounting frame is rotatably connected with an adjusting screw. An adjusting screw is threadedly connected to the surface of the adjusting screw. A top piece is slidably connected to the surface of the adjusting screw. A balance frame is also rotatably connected to the surface of the adjusting screw. A hole groove is provided on the surface of the balance frame. A hanging frame is slidably connected in the hole groove. A snap ring is slidably connected to the surface of the hanging frame.

[0008] The snap ring is located at the bottom end of the balance frame, and the snap ring is used to increase the contact area to provide a supporting effect on the balance frame.

[0009] The top piece is located at the top end of the adjusting screw, and the surface of the top piece is smooth to reduce the resistance of the rotating adjusting screw in contact with the balance frame.

[0010] The top end of the mounting frame is fixedly connected to the device housing, and a circular spirit level is fixedly connected to the surface of the balance frame.

[0011] A front cover plate is hingedly connected to the left side of the device housing, and a top cover plate is fixedly connected to the top end of the device housing.

[0012] A fresh air inlet is provided at the rear side of the device housing, and a return air inlet is also provided at the rear side of the device housing.

[0013] The position of the fresh air inlet corresponds to the fresh air valve.

[0014] A drain port is provided on the front side of the device housing, and a cover plate lock is also provided on the front surface of the device housing.

[0015] The inner wall of the device housing is fixedly connected to a high-efficiency filter, and the surface of the variable-frequency drive is fixedly connected to the inner wall of the dehumidification chamber.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0017] First, when the present invention is in use, through the built-in variable-frequency compressor, condenser and evaporator, and the variable-frequency drive connected thereto, the adjustability of the dehumidification efficiency can be realized. The working frequency can be adjusted according to actual needs, so as to achieve high-efficiency dehumidification while saving energy. The combined use of the high-efficiency filter and the primary filter can effectively filter impurities such as dust and particles in the air, improve the cleanliness of the air sent into the room, pre-treat the fresh air, ensure the indoor air quality, and the device housing is designed as an openable structure, such as the front cover plate and the top cover plate, which is convenient for daily maintenance and fault repair of the internal components, improving the maintainability and service life of the equipment.

[0018] Secondly, a slope is arranged inside the shell of the device of the present invention, so that the device itself has a positive pressure drainage function. This function avoids the cumbersome requirement of reserving a water trap for traditional dehumidifiers, so that the equipment can be more flexible during installation, without the need to consider the layout and height restrictions of the drainage pipes, thereby greatly reducing the installation height of the ceiling and providing users with a more spacious and beautiful indoor space. The front side of the device shell is carefully designed with a drain port and a cover lock. This design not only simplifies the maintenance process of the drainage system, but also allows users to easily clean and inspect the drain port without disassembling complex components, thus avoiding safety hazards caused by misoperation.

[0019] Third, when installing the ceiling dehumidifier of the present invention, the first step is to install the hanger firmly. Once the hanger is installed, the circular leveler equipped on the balance frame is used to accurately check whether the entire device maintains a horizontal state. This link is crucial because it is directly related to the stable operation of the subsequent equipment. When it is confirmed that the hanger and the balance frame connected to it by a sliding connection are in a balanced state, it is necessary to carefully check whether the water flow direction inside the device is accurate. If the device is found to be tilted, the adjustment screw can be rotated to make it rest against the top plate, so as to flexibly adjust the angle between the balance frame and the support frame, thereby achieving fine adjustment of the installation angle of the device. This design cleverly solves the problem that if the ceiling dehumidifier fails to remain horizontal during installation, the internal condensate collection tray may accumulate condensate due to an improper tilt angle and cannot be smoothly discharged into the drain pipe. It effectively avoids the condensate overflowing from the collection tray after a long period of accumulation, which may cause leakage hazards, thereby ensuring the efficient and stable operation of the ceiling dehumidifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the partial structure disassembly of the present invention;

[0022] Figure 3 It is a right view of the overall structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the dehumidification mechanism of the present invention;

[0024] Figure 5 This is a disassembly diagram of the dehumidification mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the dehumidification cabin of the present invention;

[0026] Figure 7 It is a partial structural schematic diagram of the present invention.

[0027] Among them: 1. Dehumidification mechanism; 10. Device housing; 1001. Return air vent; 1002. Fresh air vent; 1003. Supply air vent; 1004. Drainage port; 1005. Cover lock; 1006. Front cover; 1007. Top cover; 1008. Fresh air damper; 1009. Primary filter; 1010. High-efficiency filter; 1011. Variable-frequency drive; 1012. Dehumidification chamber; 1013. Condenser; 1014. Evaporator; 1015. Variable-frequency compressor; 1016. DC fan; 2. Anti-tipping mechanism; 20. Mounting frame; 2001. Support frame; 2002. Adjusting screw; 2003. Adjusting helix; 2004. Top piece; 2005. Balance frame; 2006. Hanger; 2007. Snap ring; 2008. Circular spirit level. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention provides the following technical solutions:

[0030] Embodiment 1

[0031] Please refer to Figures 1-7 , a variable-frequency fresh air ceiling dehumidifier and its automatic drainage system, including a dehumidification mechanism 1, and an anti-tipping mechanism 2 is arranged at the bottom end of the dehumidification mechanism 1;

[0032] The dehumidification mechanism 1 includes a device housing 10, a supply air vent 1003 is arranged on the front side of the device housing 10, a dehumidification chamber 1012 is slidably connected to the inner wall of the device housing 10, a variable-frequency compressor 1015 is fixedly connected to the inner wall of the dehumidification chamber 1012, a condenser 1013 is arranged at one end of the variable-frequency compressor 1015 close to the supply air vent 1003, an evaporator 1014 is arranged at one end of the variable-frequency compressor 1015 away from the condenser 1013, a DC fan 1016 is fixedly connected to the rear side of the dehumidification chamber 1012, the surface of the variable-frequency compressor 1015 is electrically connected to a variable-frequency drive 1011, a high-efficiency filter 1010 is fixedly connected to the inner wall of the device housing 10, a primary filter 1009 is fixedly connected to the rear side of the high-efficiency filter 1010, and a fresh air damper 1008 is arranged at one end of the primary filter 1009 away from the high-efficiency filter 1010.

[0033] Through the above technical solutions, in the actual application process, this variable-frequency fresh air ceiling dehumidifier demonstrates excellent performance and flexibility. Its core components, the variable-frequency compressor 1015, condenser 1013, and evaporator 1014, under the precise control of the variable-frequency drive 1011, can achieve intelligent adjustment of the dehumidification efficiency. This means that regardless of how the external humidity changes, users can easily adjust the operating frequency of the device according to the actual environmental needs, thereby ensuring high-efficiency dehumidification while maximizing energy conservation and achieving a green and environmentally friendly operation mode. To further improve the indoor air quality, the dehumidifier ingeniously integrates a dual filtration system of a high-efficiency filter 1010 and a primary filter 1009. The primary filter 1009 is mainly responsible for intercepting larger dust particles and impurities, while the high-efficiency filter 1010 further refines the filtration to effectively remove harmful substances such as fine particles and bacteria in the air, ensuring that the air sent into the room meets extremely high cleanliness standards. This pretreatment process is particularly important for fresh air, as it can create a healthier and fresher living environment indoors. In addition, the user-friendly design of the device housing 10 is also worth mentioning. To facilitate users' daily maintenance and troubleshooting, the housing is designed to be easily opened, including a front cover plate 1006 and a top cover plate 1007. This design not only makes the maintenance operation simple and easy but also greatly improves the maintainability of the device and extends its service life. Users can check and replace the filters and clean the internal components by themselves without the assistance of professional personnel, thus ensuring that the dehumidifier is always in the best working condition.

[0034] The left side of the device housing 10 is hinge-connected with a front cover plate 1006, and the top of the device housing 10 is fixedly connected with a top cover plate 1007.

[0035] The left side of the device housing 10 is designed with an openable front cover plate 1006 through hinge connection for facilitating the maintenance and repair of the device interior. At the same time, the top of the device housing 10 is fixedly connected with a top cover plate 1007 for protecting the internal components of the device and possibly having functions such as ventilation and heat dissipation.

[0036] There is a fresh air inlet 1002 at the rear side of the device housing 10, and an air return inlet 1001 is also opened at the rear side of the device housing 10.

[0037] The rear side of the device housing 10 is specially designed with a fresh air inlet 1002 for introducing fresh outdoor air; at the same time, an air return inlet 1001 is opened on the same side to realize the circulation and return of indoor air, jointly promoting the circulation and renewal of the air inside the device.

[0038] The position of the fresh air inlet 1002 corresponds to the fresh air valve 1008.

[0039] The position of the fresh air inlet 1002 is carefully arranged to correspond to the fresh air damper 1008, ensuring that fresh air can smoothly and controllably enter the interior of the device. By adjusting the damper, precise management of the fresh air volume can be achieved to meet the ventilation requirements in different environments.

[0040] A drain opening 1004 is provided on the front side of the device housing 10, and a cover plate lock 1005 is also provided on the front surface of the device housing 10.

[0041] The drain opening 1004 and the cover plate lock 1005 are carefully designed on the front side of the device housing 10. This design not only simplifies the maintenance process of the drainage system, enabling users to easily clean and inspect the drain opening 1004 without disassembling complex components, but also avoids potential safety hazards caused by incorrect operations.

[0042] The inner wall of the device housing 10 is fixedly connected to the high-efficiency filter 1010, and the surface of the variable-frequency drive 1011 is fixedly connected to the inner wall of the dehumidification chamber 1012.

[0043] The high-efficiency filter 1010 is firmly installed on the inner wall of the device housing 10 to effectively filter the air entering the device and ensure air quality. At the same time, the variable-frequency drive 1011 is stably fixed on the inner wall of the dehumidification chamber 1012. By intelligently adjusting the drive frequency, the dehumidification efficiency and energy consumption are optimized to achieve high-efficiency and energy-saving dehumidification operations.

[0044] Embodiment 2

[0045] Please refer to Figures 1-3 , a variable-frequency fresh air ceiling dehumidifier and its automatic drainage system. The anti-tilting mechanism 2 includes a mounting frame 20. A support frame 2001 is fixedly connected to the bottom end of the mounting frame 20. One end surface of the support frame 2001 away from the mounting frame 20 is rotatably connected to an adjustment screw 2002. An adjustment screw 2003 is threadedly connected to the surface of the adjustment screw 2002. A top piece 2004 is slidably connected to the surface of the adjustment screw 2002. A balance frame 2005 is also rotatably connected to the surface of the adjustment screw 2002. A hole groove is provided on the surface of the balance frame 2005, and a hanging frame 2006 is slidably connected in the hole groove. A snap ring 2007 is slidably connected to the surface of the hanging frame 2006.

[0046] Through the above technical solution, the anti-tilting mechanism 2 is mainly composed of the mounting frame 20 and its attached components. Among them, the support frame 2001 is fixedly connected to the mounting frame 20 at the bottom end. A rotatable adjusting screw 2002 is installed at the end of the support frame 2001. An adjusting screw 2003 connected by thread and a sliding top piece 2004 are provided on the adjusting screw 2002, as well as a rotatably connected balance frame 2005. A hanging frame 2006 is slidably installed in the hole groove opened on the balance frame 2005, and a snap ring 2007 is slidably connected to the hanging frame 2006. This design ensures the stability of the device during installation. By adjusting the adjusting screw 2002 and the screw, the installation angle of the device can be flexibly corrected, effectively preventing tilting and ensuring the smooth operation of the equipment.

[0047] The snap ring 2007 is located at the bottom end of the balance frame 2005. The snap ring 2007 is used to increase the contact area and provide a supporting effect on the balance frame 2005.

[0048] The snap ring 2007 located at the bottom end of the balance frame 2005 mainly serves to increase the contact area with the installation surface, provide a stable support for the balance frame 2005, further enhance the stability and load-bearing capacity of the entire anti-tilting mechanism 2, and ensure the safety and reliability of the device during installation and use.

[0049] The top piece 2004 is located at the top end of the adjusting screw 2003. The surface of the top piece 2004 is smooth to reduce the resistance when the adjusting screw 2003 rotates and contacts the balance frame 2005.

[0050] The top piece 2004 is designed to be located at the top end of the adjusting screw 2003. Its smooth surface is aimed at reducing the friction generated when contacting the balance frame 2005 when the adjusting screw 2003 rotates, so as to facilitate the user to adjust easily, improve the smoothness and efficiency of the adjustment process, and at the same time reduce the wear between components and extend the service life.

[0051] The top end of the mounting frame 20 is fixedly connected to the device housing 10. A circular spirit level 2008 is fixedly connected to the surface of the balance frame 2005.

[0052] The top end of the mounting frame 20 is firmly connected to the device housing 10, providing a stable support foundation for the entire device. At the same time, a circular spirit level 2008 is fixedly installed on the surface of the balance frame 2005. This design enables the operator to intuitively and quickly check and adjust the horizontal state of the device, ensuring that the device maintains an accurate horizontal position during installation and use, thereby improving its operating efficiency and stability.

[0053] During use, in the actual application process, this variable-frequency fresh air ceiling dehumidifier demonstrates excellent performance and flexibility. Its core components, the variable-frequency compressor 1015, condenser 1013, and evaporator 1014, under the precise control of the variable-frequency drive 1011, can achieve intelligent adjustment of the dehumidification efficiency. This means that regardless of how the external humidity changes, users can easily adjust the operating frequency of the device according to the actual environmental needs, thereby ensuring efficient dehumidification while maximizing energy conservation and achieving a green and environmentally friendly operation mode. To further improve the indoor air quality, the dehumidifier ingeniously integrates a dual filtration system of a high-efficiency filter 1010 and a primary filter 1009. The primary filter 1009 is mainly responsible for intercepting larger dust particles and impurities, while the high-efficiency filter 1010 further refines the filtration to effectively remove harmful substances such as fine particles and bacteria in the air, ensuring that the air sent into the room meets extremely high cleanliness standards. This pretreatment process is particularly important for fresh air, as it can create a healthier and fresher living environment indoors. In addition, the user-friendly design of the device housing 10 is also worth mentioning. To facilitate users' daily maintenance and troubleshooting, the housing is designed to be easily opened, including a front cover 1006 and a top cover 1007. This design not only makes the maintenance operation simple and easy but also greatly improves the maintainability of the device and extends its service life. Users can check and replace the filters and clean the internal components by themselves without the assistance of professional personnel, thus ensuring that the dehumidifier is always in the best working condition. Moreover, a slope is provided inside the device housing 10 of the present invention, enabling the device itself to have a positive pressure drainage function. This function circumvents the cumbersome requirement of having to reserve a water trap in traditional dehumidifiers, making the installation of the device more flexible without the need to additionally consider the layout and height limitations of the drainage pipeline, thereby significantly reducing the installation height of the ceiling and providing users with a more spacious and beautiful indoor space. A drainage port 1004 and a cover lock 1005 are carefully designed on the front side of the device housing 10. This design not only simplifies the maintenance process of the drainage system, allowing users to easily clean and inspect the drainage port 1004 without disassembling complex components and avoiding potential safety hazards caused by misoperation;

[0054] In addition, when installing the ceiling-mounted dehumidifier, the first step is to firmly install the hanging bracket 2006. Once the hanging bracket 2006 is installed, immediately use the circular spirit level 2008 equipped on the balance bracket 2005 to accurately check whether the entire device maintains a horizontal state. This step is crucial because it directly relates to the stable operation of the subsequent equipment. When it is confirmed that both the hanging bracket 2006 and the balance bracket 2005 connected to it through sliding connection are in a balanced state, the next step is to carefully check whether the water flow direction inside the device is accurate. If it is found that the device is tilted, the balance between the balance bracket 2005 and the support bracket 2001 can be flexibly adjusted by rotating the adjusting screw 2003 so that it abuts against the top piece 2004, thereby finely adjusting the installation angle of the device. This design ingeniously solves the problem that if the ceiling-mounted dehumidifier fails to maintain a horizontal state during installation, the internal condensate collection tray may accumulate condensate due to improper tilt angle and cannot be smoothly discharged into the drain pipe, effectively avoiding the potential water leakage hazard caused by the overflow of condensate after long-term accumulation in the collection tray, and ensuring the efficient and stable operation of the ceiling-mounted dehumidifier.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable frequency fresh air ceiling dehumidifier and its automatic drainage system, comprising a dehumidification mechanism (1), characterized in that: The bottom end of the dehumidification mechanism (1) is provided with an anti-tilt mechanism (2); The dehumidification mechanism (1) comprises a device housing (10), an air supply outlet (1003) is arranged on the front side of the device housing (10), a dehumidification chamber (1012) is slidably connected to the inner wall of the device housing (10), a variable frequency compressor (1015) is fixedly connected to the inner wall of the dehumidification chamber (1012), a condenser (1013) is arranged at one end of the variable frequency compressor (1015) close to the air supply outlet (1003), and a condenser (1013) is arranged at one end of the variable frequency compressor (1015) away from the condenser (1013). An evaporator (1014) is provided, a DC fan (1016) is fixedly connected to the rear side of the dehumidification chamber (1012), a variable frequency drive (1011) is electrically connected to the surface of the variable frequency compressor (1015), a high-efficiency filter (1010) is fixedly connected to the inner wall of the device housing (10), a primary filter (1009) is fixedly connected to the rear side of the high-efficiency filter (1010), and a fresh air valve (1008) is provided at one end of the primary filter (1009) away from the high-efficiency filter (1010); The anti-tilt mechanism (2) comprises a mounting frame (20), the bottom end of the mounting frame (20) is fixedly connected to a support frame (2001), the surface of one end of the support frame (2001) away from the mounting frame (20) is rotatably connected to an adjusting screw (2002), the surface of the adjusting screw (2002) is threadedly connected to an adjusting spiral (2003), the surface of the adjusting screw (2002) is slidably connected to a top plate (2004), the surface of the adjusting screw (2002) is also rotatably connected to a balancing frame (2005), the surface of the balancing frame (2005) is provided with a hole groove, a hanger (2006) is slidably connected in the hole groove, and the surface of the hanger (2006) is slidably connected to a snap ring (2007).

2. A variable frequency fresh air ceiling dehumidifier and automatic drainage system according to claim 1, characterized in that: The snap ring (2007) is located at the bottom end of the balance frame (2005), and the snap ring (2007) is used to increase the contact area and provide support for the balance frame (2005).

3. A variable frequency fresh air ceiling dehumidifier and automatic drainage system according to claim 1, characterized in that: The top plate (2004) is located at the top end of the adjusting screw (2003), and the top plate (2004) has a smooth surface for reducing the resistance of the rotating adjusting screw (2003) in contact with the balance frame (2005).

4. A variable frequency fresh air ceiling dehumidifier and automatic drainage system according to claim 1, characterized in that: The top end of the mounting frame (20) is fixedly connected to the device housing (10), and the surface of the balancing frame (2005) is fixedly connected to a circular level (2008).

5. A variable frequency fresh air ceiling dehumidifier and automatic drainage system according to claim 1, characterized in that: The left side of the device housing (10) is hingedly connected to a front cover plate (1006), and the top end of the device housing (10) is fixedly connected to a top cover plate (1007).

6. A variable frequency fresh air ceiling dehumidifier and automatic drainage system according to claim 1, characterized in that: A fresh air inlet (1002) is provided at the rear side of the device housing (10), and a return air inlet (1001) is also provided at the rear side of the device housing (10).

7. A variable frequency fresh air ceiling dehumidifier and its automatic drainage system according to claim 6, characterized in that: The position of the fresh air outlet (1002) corresponds to the fresh air valve (1008).

8. A variable frequency fresh air ceiling dehumidifier and automatic drainage system according to claim 1, characterized in that: A drainage port (1004) is provided on the front side of the device housing (10), and a cover plate lock (1005) is also provided on the front side surface of the device housing (10).

9. A variable frequency fresh air ceiling dehumidifier and automatic drainage system according to claim 1, characterized in that: The inner wall of the device housing (10) is fixedly connected to the high-efficiency filter (1010), and the surface of the variable frequency drive (1011) is fixedly connected to the inner wall of the dehumidification chamber (1012).

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