A dehumidifier and control method

Abstract

This invention discloses a dehumidifier and its control method. The dehumidifier includes a body, a lifting base, and a water tank. The water tank is mounted on the lifting base. The body includes a lifting section and a dehumidifying section located above the water tank. One end of the lifting section is connected to the dehumidifying section. A lifting device is provided inside the lifting base. The other end of the lifting section is drivenly connected to the lifting device to move the dehumidifying section within the water tank. This invention adopts a height-adjustable body design, allowing the dehumidifier's volume to adapt to changes in the operating environment, increasing its adaptability to different environments. It also ensures a low center of gravity, preventing tipping. The body can accommodate the water tank, reducing space occupation, improving portability and space utilization, increasing container capacity during transportation, and reducing logistics and warehousing costs.

Description

Technical Field

[0001] This invention relates to the field of dehumidification equipment technology, and in particular to a dehumidifier and control method. Background Technology

[0002] Existing dehumidifiers have several limitations in their structural design. First, traditional dehumidifiers typically employ a fixed-volume design, which restricts their adaptability to different usage environments. Second, the water tank design of traditional dehumidifiers occupies a significant amount of space, affecting the device's compactness and portability. This results in a larger overall size, taking up more space during transportation and storage, and increasing transportation and storage costs. Furthermore, the fixed-volume water tank cannot simultaneously meet the needs of various users. For example, users with greater strength may prefer a larger capacity water tank to reduce frequent emptying, while users with less strength may prefer a smaller capacity water tank for easier emptying. Therefore, optimizing the structural layout of dehumidifiers while maintaining dehumidification functionality, thereby improving their applicability, space utilization, and transportation efficiency, has become an urgent problem to be solved.

[0003] Patent CN211854260U designs the dehumidifier's main body as a retractable modular structure by placing the water tank externally, allowing it to be completely embedded inside the water tank. When not in use, the dehumidifier is stored inside the water tank; when in operation, it is placed on top of the water tank, thus reducing storage space and increasing water capacity.

[0004] However, this patent still has the following shortcomings:

[0005] 1. Switching between working and storage modes requires users to manually lift the heavy machine body, increasing physical exertion and safety hazards;

[0006] 2. When in operation, the heavier machine body is placed on top of the lighter water tank, which causes the center of gravity of the equipment to be too high, posing a risk of tipping over;

[0007] 3. When pouring water, the machine needs to be lifted and moved aside, which is particularly inconvenient in environments with limited space. Summary of the Invention

[0008] The purpose of this invention is to provide a dehumidifier and control method, which aims to solve the problems of inconvenient state switching, limited water emptying operation, and insufficient flexibility in the overall size of existing dehumidifiers.

[0009] This invention provides a dehumidifier, comprising: a body, a lifting base, and a water tank. The water tank is mounted on the lifting base. The body includes a lifting part and a dehumidifying part located above the water tank. One end of the lifting part is connected to the dehumidifying part. A lifting device is provided inside the lifting base. The other end of the lifting part is connected to the lifting device to drive the dehumidifying part to move within the water tank.

[0010] Furthermore, the maximum height of the bottom of the dehumidification section is greater than the maximum height of the water tank.

[0011] Furthermore, the lifting base includes: a base body and a lifting body, the lifting body being disposed on the base body, the water tank being disposed on the base body and located on the side of the lifting body, and the lifting device being disposed within the lifting body.

[0012] This invention also provides a control method for a dehumidifier, wherein the dehumidifier is equipped with a distance sensor, and the method includes:

[0013] The height of the top of the fuselage when the fuselage is fully retracted is obtained. The real-time distance between the top of the fuselage and the obstacle and the real-time height of the fuselage are detected by the distance sensor. The initial distance is calculated based on the height of the top of the fuselage, the real-time distance and the real-time height.

[0014] Get the mode selected by the user;

[0015] The system determines whether the initial distance meets the corresponding conditions based on the mode selected by the user. If the initial distance meets the corresponding conditions, the system operates according to the mode selected by the user. If the initial distance does not meet the corresponding conditions, the user is prompted to change the mode.

[0016] Furthermore, the step of determining whether the initial distance meets the corresponding conditions based on the user-selected mode, and if the initial distance meets the corresponding conditions, then operating according to the user-selected mode; if the initial distance does not meet the corresponding conditions, then prompting the user to change the mode, includes:

[0017] If the user selects the light tank mode, then it will operate according to the light tank mode.

[0018] If the user selects the medium water tank mode, it is determined whether the initial distance is greater than or equal to the first predetermined safe extension distance; if the initial distance is greater than or equal to the first predetermined safe extension distance, it operates according to the medium water tank mode; if the initial distance is less than the first predetermined safe extension distance, the user is reminded to change the mode.

[0019] If the user selects the large water tank mode, it is determined whether the initial distance is greater than or equal to the second predetermined safe extension distance; wherein the second predetermined safe extension distance is greater than the first predetermined safe extension distance; if the initial distance is greater than or equal to the second predetermined safe extension distance, it operates according to the large water tank mode; if the initial distance is less than the second predetermined safe extension distance, the user is reminded to change the mode.

[0020] Furthermore, the dehumidifier is equipped with a water level sensor, and the operation according to the light water tank mode includes:

[0021] The distance between the bottom of the dehumidification unit and the water level is obtained by the water level sensor, thus obtaining the water level distance.

[0022] Determine whether the water level distance is greater than the first predetermined water level safety distance;

[0023] If the water level distance is greater than the first predetermined water level safety distance, the dehumidifier will continue to operate;

[0024] If the water level distance is less than or equal to the first predetermined water level safety distance, the user is reminded to move the dehumidifier to a safe place and stop operating the dehumidifier.

[0025] Furthermore, the dehumidifier is equipped with a water level sensor and a humidity sensor, and the operation according to the middle water tank mode includes:

[0026] The distance between the bottom of the dehumidification unit and the water level is obtained by the water level sensor, thus obtaining the water level distance.

[0027] Determine whether the water level distance is greater than the second predetermined water level safety distance;

[0028] If the water level distance is greater than the second predetermined water level safety distance, the dehumidifier will continue to operate;

[0029] If the water level distance is less than or equal to the second predetermined water level safety distance, the dehumidification rate is calculated based on the humidity change detected by the humidity sensor.

[0030] Determine whether the dehumidification rate is greater than a first predetermined dehumidification threshold;

[0031] If the dehumidification rate is greater than the first predetermined dehumidification threshold, then the real-time distance is increased to the first predetermined real-time distance;

[0032] If the dehumidification rate is less than or equal to the first predetermined dehumidification threshold, the real-time distance is increased at a first predetermined speed. When the real-time distance is increased to the first predetermined real-time distance, the user is reminded to move the dehumidifier to a safe place and stop operating the dehumidifier.

[0033] Furthermore, the step of increasing the real-time distance to the first predetermined real-time distance if the dehumidification rate is greater than the first predetermined dehumidification threshold includes:

[0034] Determine whether the water level distance is greater than the second predetermined water level safety distance;

[0035] If the water level distance is greater than the second predetermined water level safety distance, the dehumidifier will continue to operate;

[0036] If the water level distance is less than or equal to the second predetermined water level safety distance, the user is reminded to move the dehumidifier to a safe place and stop operating the dehumidifier.

[0037] Furthermore, the dehumidifier is equipped with a water level sensor and a humidity sensor, and the operation according to the large water tank mode includes:

[0038] The distance between the bottom of the dehumidification unit and the water level is obtained by the water level sensor, thus obtaining the water level distance.

[0039] Determine whether the water level distance is greater than the third predetermined water level safety distance;

[0040] If the water level distance is greater than the third predetermined water level safety distance, the dehumidifier will continue to operate;

[0041] If the water level distance is less than or equal to the third predetermined water level safety distance, the dehumidification rate is calculated based on the humidity change detected by the humidity sensor.

[0042] Determine whether the dehumidification rate is greater than the second predetermined dehumidification threshold;

[0043] If the dehumidification rate is greater than the second predetermined dehumidification threshold, the real-time distance is increased to the full extension height;

[0044] If the dehumidification rate is less than or equal to the second predetermined dehumidification threshold, the real-time distance is increased at the second predetermined speed, and the dehumidifier stops operating when the real-time distance is increased to the fully extended height.

[0045] Furthermore, if the dehumidification rate is greater than the second predetermined dehumidification threshold, then the real-time distance is increased to the fully extended height, followed by:

[0046] Determine whether the water level distance is greater than the third predetermined water level safety distance;

[0047] If the water level distance is greater than the third predetermined water level safety distance, the dehumidifier will continue to operate;

[0048] If the water level distance is less than or equal to the third predetermined water level safety distance, the dehumidifier shall stop operating.

[0049] This invention discloses a dehumidifier and its control method. The dehumidifier includes a body, a lifting base, and a water tank. The water tank is mounted on the lifting base. The body includes a lifting section and a dehumidifying section located above the water tank. One end of the lifting section is connected to the dehumidifying section. A lifting device is provided inside the lifting base. The other end of the lifting section is drivenly connected to the lifting device to move the dehumidifying section within the water tank. This invention adopts a height-adjustable body design, allowing the dehumidifier's volume to adapt to changes in the operating environment, increasing its adaptability to different environments. It also ensures a low center of gravity, preventing tipping. The body can accommodate the water tank, reducing space occupation, improving portability and space utilization, increasing container capacity during transportation, and reducing logistics and warehousing costs. Attached Figure Description

[0050] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a structural diagram of the dehumidifier when fully stowed.

[0052] Figure 2 This is a schematic diagram of the dehumidifier when fully extended;

[0053] Figure 3 This is an exploded view of a dehumidifier.

[0054] Figure 4 This is a structural diagram of the fuselage;

[0055] Figure 5 This is a cross-sectional view of a dehumidifier from a first-person perspective.

[0056] Figure 6 This is a cross-sectional view of a dehumidifier from a second perspective.

[0057] Figure 7 This is a structural diagram of the lifting base;

[0058] Figure 8 This is a flowchart illustrating the control method of a dehumidifier.

[0059] Figure 9 This is another flowchart illustrating the control method for a dehumidifier;

[0060] Figure 10 This is a schematic diagram of the various parameters within the control method of a dehumidifier;

[0061] Figure 11 This is a flowchart illustrating the control method of a dehumidifier when the water tank is light.

[0062] Figure 12 This is a flowchart illustrating the control method of the dehumidifier when it is in the middle water tank.

[0063] Figure 13 This is a flowchart illustrating the control method of a dehumidifier with a large water tank.

[0064] Explanation of the labels in the diagram:

[0065] 1. Body; 2. Lifting base; 3. Water tank; 4. Lifting unit; 5. Dehumidification unit; 6. Lifting device; 7. Slide rail groove; 8. Water tank pulley; 9. Base body; 10. Lifting body; 11. Roller; 12. Pull-out part; 13. Distance sensor; 14. Water level sensor; 15. Humidity sensor. Detailed Implementation

[0066] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0067] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0068] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0069] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0070] Please see Figure 1-5This embodiment provides a dehumidifier, including: a body 1, a lifting base 2 and a water tank 3. The water tank 3 is installed on the lifting base 2. The body 1 includes a lifting part 4 and a dehumidifying part 5 located above the water tank 3. One end of the lifting part 4 is connected to the dehumidifying part 5. A lifting device 6 is provided inside the lifting base 2. The other end of the lifting part 4 is connected to the lifting device 6 to drive the dehumidifying part 5 to move within the water tank 3.

[0071] The water tank 3 is mounted on the lifting base 2, and the lifting base 2 has a lifting device 6 inside, which is used to drive the body 1 to move vertically. The body 1 is divided into two parts: the lifting part 4 and the dehumidification part 5. The dehumidification part 5 is located above the water tank 3 and includes core components such as evaporator, condenser, compressor and fan. The lifting part 4 connects the dehumidification part 5 and the lifting base 2. One end of the lifting part 4 is fixedly connected to the dehumidification part 5, and the other end is connected to the lifting device 6 inside the lifting base 2 through a transmission mechanism to realize the displacement of the dehumidification part 5 in the water tank 3.

[0072] Specifically, please refer to Figure 6 The lifting base 2 is provided with a slide rail groove 7, and the bottom of the water tank 3 is equipped with a water tank pulley 8. The water tank pulley 8 cooperates with the slide rail groove 7, so that the water tank 3 can slide along the slide rail and be nested in the lifting base 2. The bottom of the dehumidification unit 5 is provided with a nesting limiting structure, and the top of the water tank 3 is provided with a corresponding limiting groove. When the dehumidification unit 5 is completely stored in the water tank 3, the limiting structure and the limiting groove are engaged to achieve fixation.

[0073] In this embodiment, the maximum height of the bottom of the dehumidification unit 5 is greater than the maximum height of the water tank 3.

[0074] The maximum height of the dehumidifier's dehumidification section 5 at its bottom is greater than the maximum height of the water tank 3. Specifically, when the dehumidifier is in its fully extended working state, the lifting device 6 drives the lifting unit 4 to raise the dehumidifier 5 to its highest position. At this point, the distance between the bottom of the dehumidifier 5 and the placement surface is the maximum height of the bottom of the dehumidifier 5. The maximum height of the water tank 3 is its vertical distance from its bottom to its top edge. Through the design of the lifting device 6, the maximum height of the bottom of the dehumidifier 5 is set to exceed the maximum height of the water tank 3. This ensures that when the dehumidifier 5 is raised to its highest position, its bottom is completely higher than the top of the water tank 3. At this point, the water tank 3 is no longer obstructed or restricted by the dehumidifier 5, and users can easily pull out the water tank 3 along the sliding rail groove 7 on the lifting base 2 for emptying or cleaning operations, avoiding obstruction caused by the dehumidifier 5 being too low. At the same time, this design also provides sufficient space for the water tank 3 in the large water tank 3 mode, ensuring that the water tank 3 can achieve its maximum water storage capacity when the dehumidifier 5 is raised to its highest position, meeting the capacity needs of different users.

[0075] In this embodiment, please refer to Figure 7The lifting base 2 includes: a base body 9 and a lifting body 10. The lifting body 10 is disposed on the base body 9, the water tank 3 is disposed on the base body 9 and located on the side of the lifting body 10, and the lifting device 6 is disposed inside the lifting body 10.

[0076] The base body 9 serves as the basic support structure for the equipment, with a fixed area on its top for installing the water tank 3; the lifting body 10 is vertically mounted on the base body 9. The water tank 3 is installed on the base body 9, and its position is designed to be located on the lifting body 10 and on the side of the lifting body 10, in order to optimize space utilization and avoid structural interference.

[0077] A lifting device 6 is installed inside the lifting body 10. The lifting device 6 includes an electric lifting rod and a transmission mechanism. The bottom end of the electric lifting rod is fixed to the bottom support of the lifting body 10, and the top end is connected to the lifting part 4 of the dehumidifier via a connector. When the lifting device 6 is activated, the electric lifting rod drives the lifting part 4 to move up and down along the inner wall of the lifting body 10, thereby causing the dehumidifier 5 to move above or inside the water tank 3. Since the water tank 3 is mounted on the base body 9, the lifting action of the lifting body 10 will not affect the stability of the water tank 3. At the same time, the layout of the water tank 3 ensures that it remains fixedly connected to the base body 9 during the lifting and lowering process of the body 1, avoiding displacement or tipping of the water tank 3 due to the lifting action.

[0078] In this embodiment, the lifting base 2 is provided with rollers 11 (e.g., ...). Figure 5 (As shown).

[0079] The four corners of the bottom of the lifting base 2 are equipped with casters 11, which are universal casters with brakes. The casters 11 are made of high-strength, wear-resistant rubber, adaptable to different ground conditions, and reduce noise and vibration during movement. When the dehumidifier needs to be moved, the brakes on the casters 11 are released, allowing the user to easily move the device between different areas of the room. Once the dehumidifier reaches the target location, locking the brakes on the casters 11 effectively prevents displacement due to accidental collisions or vibrations caused by the lifting of the unit 1 during operation, ensuring stable operation. This braked caster 11 design improves the dehumidifier's portability and ensures its stability during operation.

[0080] In this embodiment, the water tank 3 is provided with a pull-out part 12 (such as...). Figure 5As shown, the pull-out part 12 is made of high-strength plastic with a non-slip surface, allowing users to grip it firmly and pull it out when operating the water tank 3. The shape of the pull-out part 12 is ergonomically designed, fitting the hand perfectly; even with frequent and prolonged use, the hand will not experience significant discomfort. Furthermore, the pull-out part 12 is securely connected to the main body of the water tank 3, ensuring it will not loosen or detach during operation. To enhance the overall aesthetics, the color of the pull-out part 12 coordinates with the color of the main body of the water tank 3, adding a touch of sophistication while fulfilling its practical function. When adding water to or cleaning the water tank 3, users simply need to gently grip the pull-out part 12 and apply slight force to smoothly pull out the water tank 3, making operation very convenient.

[0081] In this embodiment, please refer to Figure 5 The dehumidifier is equipped with a distance sensor 13 to detect in real time the distance D1 between the top of the unit 1 and an obstacle, and the current height A1 of the dehumidifier unit 1. It is also equipped with a water level sensor 14 to detect in real time the distance E between the bottom of the unit 1 and the water level in the water tank 3. Additionally, a humidity sensor 15 is installed to detect changes in ambient humidity in real time.

[0082] Please see Figures 8-10 This embodiment also provides a control method for a dehumidifier, wherein the dehumidifier is equipped with a distance sensor, and the method includes:

[0083] S101: Obtain the top height of the fuselage when the fuselage is fully retracted, detect the real-time distance between the top of the fuselage and the obstacle and the real-time height of the fuselage through the distance sensor, and calculate the initial distance based on the top height of the fuselage, the real-time distance and the real-time height;

[0084] In this embodiment, after the dehumidifier is powered on, the controller initializes and activates the following sensors to obtain real-time data:

[0085] Top distance infrared sensor: Real-time detection of the distance D1 between the top of the device and an obstacle, and the real-time height A1 of the device.

[0086] Water level infrared sensor: Real-time detection of the distance E between the bottom of the dehumidifier and the water level.

[0087] Humidity sensor: detects changes in ambient humidity in real time.

[0088] To prevent the unit from being submerged in water, it maintains its pre-power-off height during a power outage. To avoid situations where the dehumidifier is not fully retracted before power-on, the initial distance D between the top of the unit and any obstacle when fully retracted is calculated using the following formula:

[0089] D = D1 + A1 - A

[0090] Where A is the height of the top of the fuselage when it is fully retracted, D1 is the real-time distance between the top of the fuselage and the obstacle, and A1 is the real-time height of the fuselage.

[0091] S102: Obtain the mode selected by the user;

[0092] Specifically, the dehumidifier has three water tank modes: low-capacity, medium-capacity, and high-capacity, designed to meet the different water tank capacity needs of users. Specifically, the low-capacity mode is suitable for users with less energy, the medium-capacity mode is suitable for average users, and the high-capacity mode is suitable for users with more energy who want to reduce the frequency of emptying the water tank.

[0093] The dehumidifier's control panel features mode selection buttons, including buttons for light water tank mode, medium water tank mode, and large water tank mode. Users can select the desired mode by pressing the corresponding button. The dehumidifier also supports connection to a mobile app, allowing users to select modes directly from the app's mode selection interface. After a user selects a mode via buttons or the app, the dehumidifier's controller immediately receives and recognizes the command, storing the selected mode information in its internal memory for subsequent operation and control. The controller also displays the currently selected mode on the unit's display screen for user confirmation.

[0094] S103: Determine whether the initial distance meets the corresponding conditions based on the mode selected by the user. If the initial distance meets the corresponding conditions, then operate according to the mode selected by the user. If the initial distance does not meet the corresponding conditions, then remind the user to change the mode.

[0095] Specifically, the system determines whether the initial distance meets the corresponding conditions based on the user's selected mode. If the initial distance meets the conditions, the system operates according to the user's selected mode; otherwise, the user is prompted to change the mode. This includes:

[0096] If the user selects the light tank mode, then it will run in light tank mode.

[0097] If the user selects the medium water tank mode, it will determine whether the initial distance is greater than or equal to the first predetermined safe extension distance; if the initial distance is greater than or equal to the first predetermined safe extension distance, it will operate in the medium water tank mode; if the initial distance is less than the first predetermined safe extension distance, it will remind the user to change the mode.

[0098] If the mode selected by the user is the large water tank mode, it is determined whether the initial distance is greater than or equal to the second predetermined safe extension distance; wherein, the second predetermined safe extension distance is greater than the first predetermined safe extension distance; if the initial distance is greater than or equal to the second predetermined safe extension distance, it operates in the large water tank mode; if the initial distance is less than the second predetermined safe extension distance, the user is reminded to change the mode.

[0099] More specifically, when the user selects the light water tank mode, the controller directly operates according to this mode without performing distance condition judgment. At this time, the lifting height of the dehumidifying part is fixed at the minimum extension height A (the height in the fully retracted state) corresponding to the light water tank mode, and the water storage volume of the water tank is the preset minimum value, which is applicable to scenarios where the space is limited or the user prefers a small-capacity water tank.

[0100] When the user selects the medium water tank mode, the controller first determines whether the initial distance D is greater than or equal to the first predetermined safe extension distance d1 (such as d1 = 0.5d2, where d2 is the second predetermined safe extension distance). If D≥d1, the controller drives the lifting device to raise the dehumidifying part to the height corresponding to the medium water tank mode to make the water storage volume of the water tank reach the medium capacity; if D<d1, it is prompted to the user through the display screen or voice that the current space is not sufficient to support the medium water tank mode, and it is recommended to switch to the light water tank mode.

[0101] When the user selects the large water tank mode, the controller further determines whether the initial distance D is greater than or equal to the second predetermined safe extension distance d2. Since d2>d1, this mode has higher requirements for the environmental space. If D≥d2, the controller drives the lifting device to raise the dehumidifying part to the fully extended height B to maximize the water storage volume of the water tank; if D<d2, it is prompted to the user through the display screen or voice that the current space is not sufficient to support the large water tank mode, and it is recommended to switch to the medium water tank or light water tank mode.

[0102] Among them, the second predetermined safe extension distance d2 is calculated according to the following formula:

[0103] d2 = (B - A) * 1.2

[0104] In this embodiment, by combining the initial distance with the mode selection input by the user, the operating conditions of the device are dynamically matched. For example, in the case where the user mistakenly selects the large water tank mode but the actual space is insufficient, the system can actively intervene and guide the user to adjust the mode, avoiding abnormal device operation or safety hazards caused by space conflicts. In addition, all prompt messages for mode switching are synchronously displayed through the operation panel or the supporting application program to ensure that the user clearly understands the current device status and available options.

[0105] In some embodiments, please refer to Figure 11 , a water level sensor is provided on the dehumidifier, and operating in the light water tank mode includes:

[0106] The distance between the bottom of the dehumidifier and the water level is obtained by using a water level sensor;

[0107] Determine whether the water level distance is greater than the first predetermined safe water level distance;

[0108] If the water level distance is greater than the first predetermined safe water level distance, the dehumidifier will continue to operate;

[0109] If the water level distance is less than or equal to the first predetermined safe water level distance, the user is reminded to move the dehumidifier to a safe location and stop operating the dehumidifier.

[0110] Specifically, the dehumidifier has a water level sensor at the bottom of the dehumidification section to detect the vertical distance E between the bottom of the dehumidification section and the water level in the water tank. The water level sensor is an infrared reflective sensor, with its transmitter and receiver symmetrically installed at the bottom edge of the dehumidification section. It calculates the distance E between the bottom of the dehumidification section and the water level by emitting modulated infrared light and receiving the reflected signal.

[0111] In light water tank mode, the controller continuously reads the real-time distance E collected by the water level sensor and compares it with the preset first predetermined water level safety distance e1 (e.g., e1 = 5cm). If E > e1 is detected, it indicates that the water level in the tank has not reached the critical state, the dehumidifier continues to operate normally, and the compressor, fan and other core components continue to work to complete the dehumidification task.

[0112] If E≤e1 is detected, the controller triggers the following operation:

[0113] The dehumidifier displays a message on its casing: "Water level too high. Please move the device to a safe location." It also emits an intermittent alarm sound via a buzzer. If the device supports Bluetooth or Wi-Fi connectivity, the controller will also send the same message to the user via the accompanying app.

[0114] The controller then immediately shuts down core components such as the compressor and fan, and enters standby mode to prevent the water level from rising further, which could lead to short circuits or overflows in the equipment.

[0115] During the prompt for the user to move the device, the controller uses the roller locking mechanism of the lifting base to fix the device position and prevent the device from moving accidentally due to external force.

[0116] This logic ensures that the water level in the dehumidifier tank remains within a safe range in light water tank mode through real-time monitoring by a water level sensor and user interaction prompts. For example, when the water level gradually approaches the bottom of the dehumidifier unit, the system guides the user to adjust the unit's position through multi-channel prompts, rather than directly raising the unit, thus avoiding lifting / lowering failures due to insufficient space. Once the user moves the dehumidifier to a safe location, it will fully extend, allowing the user to remove the water tank and empty it.

[0117] In some embodiments, please refer to Figure 12 The dehumidifier is equipped with a water level sensor and a humidity sensor, and operates in the middle water tank mode, including:

[0118] The distance between the bottom of the dehumidifier and the water level is obtained by using a water level sensor;

[0119] Determine whether the water level distance is greater than the second predetermined safe water level distance;

[0120] If the water level distance is greater than the second predetermined safe water level distance, the dehumidifier will continue to operate;

[0121] If the water level distance is less than or equal to the second predetermined water level safety distance, the dehumidification rate is calculated based on the humidity change detected by the humidity sensor.

[0122] Determine whether the dehumidification rate is greater than the first predetermined dehumidification threshold;

[0123] If the dehumidification rate is greater than the first predetermined dehumidification threshold, the real-time distance will be increased to the first predetermined real-time distance.

[0124] If the dehumidification rate is less than or equal to the first predetermined dehumidification threshold, the real-time distance is increased at the first predetermined speed. When the real-time distance is increased to the first predetermined real-time distance, the user is reminded to move the dehumidifier to a safe place and stop running the dehumidifier.

[0125] Specifically, the dehumidifier has an infrared reflective water level sensor at the bottom of the dehumidification section to detect the vertical distance E between the bottom of the dehumidification section and the water level in the water tank in real time; at the same time, a capacitive humidity sensor is installed at the top of the dehumidification section to monitor changes in ambient humidity and calculate the dehumidification rate R.

[0126] In the medium water tank mode, the controller first obtains the real-time water level distance E through the water level sensor and compares it with the preset second predetermined water level safety distance e2 (e2 = 8cm). If E > e2 is detected, it indicates that the water level in the tank is within the safe range, the dehumidifier continues to operate normally, and the compressor and fan continue to work to complete the dehumidification task.

[0127] If E≤e2 is detected, the controller triggers the following composite judgment process:

[0128] The controller activates the humidity sensor to collect the current ambient humidity H1 and the humidity H2 at the previous time point (interval Δt), and calculates the dehumidification rate R = (H2 - H1) / Δt × 100%.

[0129] The controller will calculate R and compare it with the first predetermined dehumidification threshold R1 (R1 = 3% / (min·m)). 3The controller compares the two units. If R > R1, it indicates that the water level is rising rapidly. To prevent the unit from being submerged, the controller directly drives the lifting device to raise the dehumidifier from its current height to a first predetermined real-time distance D1 (D1 = A + 0.5 × (BA)), thus expanding the water tank's storage space to match the high dehumidification rate. If R ≤ R1, it indicates that the water level is rising at a controllable rate. To prevent the unit from tilting due to excessively rapid extension of the body, the controller gradually raises the height of the dehumidifier at a first predetermined speed V1 (each increase in body height is (BA) × 5%) until it reaches D1.

[0130] When the dehumidifier reaches the height of D1, if the water level distance E is still ≤ e2, the controller will display a message on the screen saying "Water level too high, please move the device to a safe position" and simultaneously emit an intermittent alarm sound via a buzzer. If the device supports wireless connection, the controller will also send the same message to the user through the accompanying application and turn off the compressor and fan to enter standby mode to prevent the water level from rising further and causing the device to short circuit or overflow.

[0131] This logic dynamically balances water level safety and dehumidification efficiency through the coordinated operation of a water level sensor and a humidity sensor. For example, in scenarios with low dehumidification requirements, the system gradually releases water tank space by increasing the unit height in stages, avoiding wasted space due to excessive expansion at once; in scenarios with high dehumidification requirements, it directly raises to the target height to quickly expand water storage capacity. Simultaneously, a multi-channel user notification mechanism (display screen, buzzer, application) ensures timely response to water level anomalies, improving equipment safety and ease of operation.

[0132] Furthermore, if the dehumidification rate is greater than the first predetermined dehumidification threshold, then increasing the real-time distance to the first predetermined real-time distance includes:

[0133] Determine whether the water level distance is greater than the second predetermined safe water level distance;

[0134] If the water level distance is greater than the second predetermined safe water level distance, the dehumidifier will continue to operate;

[0135] If the water level distance is less than or equal to the second predetermined safe water level distance, the user is reminded to move the dehumidifier to a safe location and stop operating the dehumidifier.

[0136] Specifically, a secondary verification process for water level safety is implemented when the dehumidification rate exceeds a preset threshold. This process occurs when the dehumidification rate R is greater than the first predetermined dehumidification threshold R1 (e.g., R1 = 3% / (min·m)). 3 When the controller drives the lifting device to raise the dehumidifier from the current height to the first predetermined real-time distance D1 (D1=A+0.5×(BA)), the water tank storage space is expanded.

[0137] After completing the lift to D1, the controller immediately re-detects the distance E between the bottom of the dehumidifier and the water level via the water level sensor and compares it with the second predetermined safe water level distance e2 (e.g., e2 = 8cm). If E > e2, it indicates that the water level is within the safe range, and the dehumidifier continues to operate normally, with the compressor and fan continuing to work to maintain the current dehumidification rate R; if E ≤ e2, the controller triggers the following operation:

[0138] The dehumidifier displays a message on its casing: "Water level too high. Please move the device to a safe location." It also emits an intermittent alarm sound via a buzzer. If the device supports Bluetooth / Wi-Fi connectivity, the controller will also send the same message to the user via the accompanying app.

[0139] The controller then immediately shuts down core components such as the compressor and fan, and enters standby mode to prevent the water level from rising further, which could lead to short circuits or overflows in the equipment.

[0140] Then the controller activates the locking mechanism of the lifting base rollers to ensure that the equipment remains in a fixed position until the user moves it manually, thus preventing accidental displacement due to external forces.

[0141] This logic verifies the water level safety status in stages, ensuring that in high dehumidification scenarios, the device can quickly respond to changes in dehumidification rate and reconfirm the availability of water tank space. For example, when the dehumidification rate is high and the water level rises rapidly, the system dynamically adjusts the unit height to release water tank space. If the final height still does not meet safety requirements, user intervention is forced to eliminate the risk. Simultaneously, a multi-channel prompting mechanism and a roller locking design jointly ensure the safety and convenience of user operation.

[0142] In some embodiments, please refer to Figure 13 The dehumidifier is equipped with a water level sensor and a humidity sensor, and operates in large water tank mode, including:

[0143] The distance between the bottom of the dehumidifier and the water level is obtained by using a water level sensor;

[0144] Determine whether the water level distance is greater than the third predetermined safe water level distance;

[0145] If the water level distance is greater than the third predetermined safe water level distance, the dehumidifier will continue to operate;

[0146] If the water level distance is less than or equal to the third predetermined water level safety distance, the humidity change is detected by the humidity sensor and the dehumidification rate is calculated, and the real-time distance between the top of the machine and the obstacle is detected by the distance sensor.

[0147] Determine whether the dehumidification rate is greater than the second predetermined dehumidification threshold;

[0148] If the dehumidification rate is greater than the second predetermined dehumidification threshold, the real-time distance will be increased to the full extension height.

[0149] If the dehumidification rate is less than or equal to the second predetermined dehumidification threshold, the real-time distance is increased at the second predetermined speed. When the real-time distance is increased to the fully extended height, the dehumidifier stops operating.

[0150] Specifically, the dehumidifier has an infrared reflective water level sensor at the bottom of the dehumidification section to detect the vertical distance E between the bottom of the dehumidification section and the water level in the water tank in real time; a capacitive humidity sensor at the top of the dehumidification section to monitor changes in ambient humidity and calculate the dehumidification rate R; and an infrared distance sensor installed at the top edge of the dehumidification section to detect the real-time distance D1 between the top of the unit and obstacles.

[0151] In large water tank mode, the controller first obtains the real-time water level distance E through the water level sensor and compares it with the preset third safe water level distance e3 (e.g., e3 = 8.5cm). If E > e3 is detected, it indicates that the water level in the tank is within the safe range, the dehumidifier continues to operate normally, and the compressor and fan continue to work to complete the dehumidification task.

[0152] If E≤e3 is detected, the controller triggers the following composite judgment process:

[0153] The controller activates the humidity sensor to collect the current ambient humidity H1 and the humidity H2 at the previous time point (interval Δt), and calculates the dehumidification rate R = (H2 - H1) / Δt × 100%.

[0154] Meanwhile, the controller obtains the real-time distance D1 through the infrared distance sensor, which is used to determine whether the conditions for full extension are met.

[0155] The controller will calculate R and compare it with the second predetermined dehumidification threshold R2 (e.g., R2 = 4% / (min·m)). 3 The controller compares the two sides. If R > R2, it indicates that the current dehumidification demand is extremely high. The controller directly drives the lifting device to raise the dehumidification section from the current height to the fully extended height B, so as to maximize the water tank storage space. If R ≤ R2, the height of the dehumidification section is gradually raised at a second predetermined speed V2 (e.g., V2 = 0.15 m / s) until the fully extended height B is reached.

[0156] When the dehumidification section reaches height B, the controller shuts down the compressor and fan, entering standby mode to prevent the water level from rising further, which could lead to a short circuit or overflow of the equipment.

[0157] This logic utilizes multi-sensor data fusion to prioritize releasing the maximum water tank space in high dehumidification demand scenarios, while avoiding operational interruptions due to excessively high water levels. For example, in low dehumidification demand scenarios, the system gradually increases its water storage capacity by raising the unit height in stages, while in high dehumidification demand scenarios, it rises directly to its full extension height to quickly cope with high-load operation. Furthermore, the standby mode design allows users to restart the dehumidifier and resume dehumidification function via the control panel or application after emptying the water tank.

[0158] Furthermore, if the dehumidification rate exceeds the second predetermined dehumidification threshold, the real-time distance is increased to the fully extended height, followed by:

[0159] Determine whether the water level distance is greater than the third predetermined safe water level distance;

[0160] If the water level distance is greater than the third predetermined safe water level distance, the dehumidifier will continue to operate;

[0161] If the water level distance is less than or equal to the third predetermined safe water level distance, the dehumidifier will stop operating.

[0162] Specifically, when the dehumidification rate R is greater than the second predetermined dehumidification threshold R2, the controller drives the lifting device to raise the dehumidification unit from its current height to its fully extended height B, so as to maximize the water tank's water storage space.

[0163] After completing the lift to B, the controller immediately re-detects the distance E between the bottom of the dehumidifier and the water level using the water level sensor and compares it with the third predetermined safe water level distance e3. If E > e3, it indicates that the water level is within the safe range, and the dehumidifier continues to operate normally, with the compressor and fan continuing to work to maintain the current dehumidification rate R; if E ≤ e3, the controller triggers the following operation:

[0164] The controller immediately shuts down core components such as the compressor and fan, and enters standby mode to prevent the water level from rising further, which could lead to short circuits or overflows in the equipment.

[0165] Next, the controller activates the locking mechanism of the lifting base rollers to ensure that the equipment remains in a fixed position before the user moves it manually, thus preventing accidental displacement due to external forces.

[0166] Then, the dehumidifier displays a message on its casing: "Water level too high, please empty the water and restart the device," while simultaneously emitting an intermittent alarm sound via a buzzer. If the device supports Bluetooth / Wi-Fi connectivity, the controller also sends the same message to the user via the accompanying application.

[0167] This logic ensures that the water tank space is fully utilized in large-tank mode while preventing equipment interruption due to excessively high water levels through secondary water level verification after the tank reaches its full extension height. For example, in scenarios with high dehumidification demands, the system prioritizes releasing the maximum water tank space to handle high-load operation, but forcibly stops operation to eliminate risks if the water level still exceeds the safe range. Simultaneously, the roller locking design and multi-channel prompting mechanism jointly ensure the safety and convenience of user operation.

[0168] In some embodiments, an infrared water level sensor is installed at the bottom of the dehumidifier to detect the distance E between the bottom of the unit and the water level in the water tank. The controller dynamically adjusts the water tank's water level based on a comparison between E and a preset safe water level distance e (e.g., e = 5cm).

[0169] When E>e, the water tank can continue to store water, and the controller allows the compressor to operate normally;

[0170] When E≤e, the controller determines whether the conditions for further raising the fuselage are met:

[0171] If the current height of the machine body has not reached the fully extended height B, the controller drives the lifting device to raise the height of the machine body, so that the distance E between the top of the water tank and the bottom of the machine body gradually increases, thereby releasing more water storage space;

[0172] If the current height of the unit has reached the fully extended height B, the controller will trigger the "full water" state, shut down the compressor, and issue a prompt signal (such as "Please empty water" displayed on the screen, a buzzer alarm, or an application push notification) to ask the user to empty the water in time.

[0173] During the lifting process, the controller ensures equipment stability through the following mechanisms:

[0174] When the water level reaches the safe water level (E≤e), the controller will first release the water tank space by raising the body, so that the weight distribution of the body matches the water tank storage capacity, and avoid the center of gravity shifting due to the excessive weight of the water tank.

[0175] During the lifting and lowering process of the machine body, the controller activates the locking mechanism of the lifting base rollers to prevent the equipment from being accidentally displaced by external forces;

[0176] Before each lifting action, the controller synchronously verifies whether the current D and E meet the safety conditions. If there is a conflict (such as D < 0.5d but E ≤ e), the constraint condition of D is given priority to keep the body fully retracted to avoid risks.

[0177] This logic maximizes the water tank's storage capacity while ensuring equipment safety through the coordinated operation of distance and water level sensors. For example, in scenarios where space is limited but the water level is rising rapidly, the system prioritizes partially extending to release water tank space; in scenarios where space is ample but the user has not emptied the water in time, the system fully extends to delay the "full" state. Simultaneously, multi-level safety thresholds and user notification mechanisms work together to ensure stable operation of the equipment in complex environments.

[0178] In some embodiments, the method further includes: acquiring real-time change data of ambient humidity through a humidity sensor and calculating the current dehumidification rate R;

[0179] The distance E between the bottom of the dehumidifier and the water level in the water tank is obtained by a water level sensor;

[0180] A correlation model is established using real-time data from a humidity sensor and the water level distance E. The correlation model employs linear regression or a neural network algorithm to predict the water tank's water storage rate.

[0181] The formula for calculating the correlation model is: ΔV / Δt=w1R+w2E+w3(R×E)+b

[0182] Where w1, w2, and w3 are weights, and b is the bias.

[0183] The adjustment strategy is dynamically adjusted based on the prediction results of the correlation model, specifically including:

[0184] When it is predicted that the water tank filling speed is higher than the preset threshold, it is determined that the water level may quickly approach the safe water level distance e. The controller drives the lifting device to raise the height of the dehumidification section in advance to free up more water tank space.

[0185] When the water tank filling rate is predicted to be lower than the preset threshold, the current dehumidification section height is maintained or gradually adjusted at the preset speed to avoid unnecessary raising and lowering operations.

[0186] This method proactively predicts water tank storage trends by fusing humidity and water level data. For example, when heavy rain causes a sudden increase in ambient humidity, the system can identify high dehumidification rates (R) in advance and drive the unit to lift and release water tank space, preventing a "full" state triggered by a rapid rise in water level. In dry seasons or scenarios where users frequently empty water, the system reduces lifting operations, extending equipment lifespan and reducing power consumption. Furthermore, the model's adaptive characteristics allow it to dynamically update with environmental changes, improving prediction accuracy and control reliability.

[0187] In some embodiments, the method further includes: detecting the initial distance D between the top of the dehumidifier and the obstacle using an infrared distance sensor; then acquiring real-time changes in ambient humidity using a humidity sensor and calculating the current dehumidification rate R; and then acquiring the user-defined humidity target Htarget.

[0188] Judge whether the space meets the extension condition of the large water tank mode according to D:

[0189] If D≥d (d is the preset safe extension distance), it is preliminarily determined that entry into the large water tank mode is allowed;

[0190] If D<d, directly prohibit entry into the large water tank mode.

[0191] In the case of a preliminary determination that entry into the large water tank mode is allowed, further conduct a dynamic evaluation in combination with R and Htarget:

[0192] Calculate the difference ΔH = Hcurrent - Htarget between the current humidity Hcurrent and Htarget;

[0193] If R≥Rthreshold (Rthreshold is the preset demand threshold) and ΔH>0, entry into the large water tank mode is allowed;

[0194] If R<Rthreshold or ΔH≤0, force a switch to the medium water tank mode to improve the dehumidification efficiency.

[0195] When entry into the large water tank mode is allowed, the controller drives the lifting device to raise the dehumidification part to the fully extended height to maximize the water storage space of the water tank; when forced to switch to the medium water tank mode, the controller limits the maximum extended height of the dehumidification part to A + 0.5×(B - A) to balance the space utilization rate and the dehumidification demand.

[0196] In some embodiments, it further includes: real-time detecting the total weight W of the water tank through a base weight sensor, and calculating the weight change rate ΔW / Δt per unit time;

[0197] Obtaining the distance E between the bottom of the dehumidification part and the water level of the water tank through a water level sensor, and calculating the water level change rate ΔE / Δt per unit time;

[0198] Detecting the tilt angle θ of the device through a fuselage tilt sensor for correcting the calculated value of the initial distance D.

[0199] Using historical operation data to train a "weight - water level" correlation model, the model adopts a linear regression or neural network algorithm, the input variables include W, E and their change rates ΔW / Δt, ΔE / Δt, and the output variable is the water tank water filling speed Vfill (unit: liters / minute);

[0200] During real-time operation, predict the current water tank water filling speed Vfillpredicted through the model, and conduct cross-validation with the actual weight change rate ΔW / Δt:

[0201] If ∣Vfillpredicted - Vfillactual∣ < ∈ (∈ is the preset error threshold), it is determined that the water tank is in a normal state;

[0202] If ∣Vfillpredicted - Vfillactual∣ ≥ ∈, an abnormal alarm is triggered to prompt the user to check the water tank seal or sensor failure.

[0203] When calculating the initial distance D between the dehumidification part and the obstacle, in combination with the tilt angle θ detected by the fuselage tilt sensor, the value of D is corrected through the geometric correction formula:

[0204] Dcorrected = Draw × cos(θ)

[0205] where, Draw is the original uncorrected distance, and Dcorrected is the corrected effective distance;

[0206] If Dcorrected ≥ dthreshold (dthreshold is the preset safe extension distance), the dehumidification part is allowed to lift to the large water tank mode; otherwise, the lift height is restricted to avoid the risk of collision.

[0207] The controller dynamically adjusts the lifting strategy according to the above verification results:

[0208] If the "weight - water level" model verification passes and Dcorrected meets the conditions, enter the large water tank mode to maximize the water tank space;

[0209] If the verification fails or Dcorrected < dthreshold, switch to the medium water tank mode or the fully retracted state, and prompt the user for the reason of the abnormality and operation suggestions through the display screen.

[0210] By introducing a multi - sensor data fusion and dynamic correction mechanism, the limitation of traditional dehumidifiers relying on a single parameter to judge the water tank state is solved. For example, in scenarios where users pour water frequently or the environmental humidity fluctuates greatly, the system can accurately identify the real water storage trend through the cross - verification of the weight - water level model, avoiding misoperations caused by sensor drift or external interference. At the same time, the tilt angle correction function ensures the safe operation of the device under non - ideal placement conditions, significantly improving the user experience and device stability.

[0211] It should be noted that all the predetermined parameters in this embodiment can be determined according to the actual situation. For example, the first predetermined safe extension distance, the second predetermined safe extension distance, the first predetermined water level safety distance, the second predetermined water level safety distance, the first predetermined dehumidification threshold, the second predetermined water level safety distance, the third predetermined water level safety distance, and the second predetermined dehumidification threshold, etc.

[0212] This embodiment employs a height-adjustable design, allowing the dehumidifier's size to adapt to varying operating environments, thus increasing its versatility. The retractable water tank reduces space occupancy, enhancing portability and space utilization, increasing container capacity during transport, and lowering logistics and warehousing costs.

[0213] Simultaneously, the automatic height adjustment control logic adjusts the unit's height based on user preferences, water tank capacity, dehumidification rate, and room size. The adjustable water tank volume maintains the dehumidifier's center of gravity, preventing it from tipping over. The unit's height can be adjusted to the desired level according to user preference and room size, increasing its versatility in various spaces. Users no longer need to manually lift and place the unit, enhancing convenience and safety during use and significantly improving the user experience.

[0214] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

[0215] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusivity.

[0216] The term "comprises" implies that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A control method for a dehumidifier, the dehumidifier comprising: The dehumidifier comprises a main body, a lifting base, and a water tank, wherein the water tank is mounted on the lifting base. The main body includes a lifting section and a dehumidifying section located above the water tank. One end of the lifting section is connected to the dehumidifying section. A lifting device is provided inside the lifting base. The other end of the lifting section is drivenly connected to the lifting device to move the dehumidifying section within the water tank. A distance sensor is provided on the dehumidifier. The control method includes: The height of the top of the fuselage when the fuselage is fully retracted is obtained. The real-time distance between the top of the fuselage and the obstacle and the real-time height of the fuselage are detected by the distance sensor. Based on the height A of the top of the fuselage, the real-time distance D1 and the real-time height A1, the initial distance D between the top of the fuselage and the obstacle when the fuselage is fully retracted is calculated using the formula D=D1+A1-A. Obtain the user's selected mode; each mode corresponds to a different water tank capacity. If the user selects the light tank mode, then it will operate according to the light tank mode. If the user selects the medium water tank mode, it is determined whether the initial distance is greater than or equal to the first predetermined safe extension distance; if the initial distance is greater than or equal to the first predetermined safe extension distance, it operates according to the medium water tank mode; if the initial distance is less than the first predetermined safe extension distance, the user is reminded to change the mode. If the user selects the large water tank mode, it is determined whether the initial distance is greater than or equal to the second predetermined safe extension distance; wherein the second predetermined safe extension distance is greater than the first predetermined safe extension distance; if the initial distance is greater than or equal to the second predetermined safe extension distance, it operates according to the large water tank mode; if the initial distance is less than the second predetermined safe extension distance, the user is reminded to change the mode.

2. The control method for a dehumidifier according to claim 1, wherein the dehumidifier is equipped with a water level sensor, characterized in that, The operation according to the light water tank mode includes: The distance between the bottom of the dehumidification unit and the water level is obtained by the water level sensor, thus obtaining the water level distance. Determine whether the water level distance is greater than the first predetermined water level safety distance, wherein the first predetermined water level safety distance refers to the critical safety distance required to maintain the normal operation of the dehumidifier in the light water tank mode; If the water level distance is greater than the first predetermined water level safety distance, the dehumidifier will continue to operate; If the water level distance is less than or equal to the first predetermined safe water level distance, the user is reminded to move the dehumidifier to a safe place and stop operating the dehumidifier. The safe place refers to the position in light water tank mode where the dehumidifier can be fully extended to allow the user to remove the water tank.

3. The control method for a dehumidifier according to claim 1, wherein the dehumidifier is equipped with a water level sensor and a humidity sensor, characterized in that, The operation according to the medium water tank mode includes: The distance between the bottom of the dehumidification unit and the water level is obtained by the water level sensor, thus obtaining the water level distance. Determine whether the water level distance is greater than the second predetermined water level safety distance, wherein the second predetermined water level safety distance refers to the critical safety distance required to maintain the normal operation of the dehumidifier in the middle water tank mode; If the water level distance is greater than the second predetermined water level safety distance, the dehumidifier will continue to operate; If the water level distance is less than or equal to the second predetermined water level safety distance, the dehumidification rate is calculated based on the humidity change detected by the humidity sensor. Determine whether the dehumidification rate is greater than a first predetermined dehumidification threshold, wherein the first predetermined dehumidification threshold is used to determine the speed of the current dehumidification rate; If the dehumidification rate is greater than the first predetermined dehumidification threshold, the real-time distance is increased to the first predetermined real-time distance that expands the water tank storage space. If the dehumidification rate is less than or equal to the first predetermined dehumidification threshold, the real-time distance is increased by the increase rate of the first predetermined speed. When the real-time distance increases to the first predetermined real-time distance, the user is reminded to move the dehumidifier to a place where it can be safely extended and to stop operating the dehumidifier.

4. The control method for a dehumidifier according to claim 3, characterized in that, The step of increasing the real-time distance to the first predetermined real-time distance if the dehumidification rate is greater than the first predetermined dehumidification threshold includes: Determine whether the water level distance is greater than the second predetermined water level safety distance; If the water level distance is greater than the second predetermined water level safety distance, the dehumidifier will continue to operate; If the water level distance is less than or equal to the second predetermined water level safety distance, the user is reminded to move the dehumidifier to a safe place and stop operating the dehumidifier; wherein, a safe place refers to a position in the middle water tank mode where the dehumidifier can be fully extended to allow the user to remove the water tank.

5. The control method for a dehumidifier according to claim 1, wherein the dehumidifier is equipped with a water level sensor and a humidity sensor, characterized in that, The operation according to the large water tank mode includes: The distance between the bottom of the dehumidification unit and the water level is obtained by the water level sensor, thus obtaining the water level distance. Determine whether the water level distance is greater than the third predetermined water level safety distance; wherein, the third predetermined water level safety distance refers to the critical safety distance required to maintain the normal operation of the dehumidifier in the light water tank mode; If the water level distance is greater than the third predetermined water level safety distance, the dehumidifier will continue to operate; If the water level distance is less than or equal to the third predetermined water level safety distance, the dehumidification rate is calculated based on the humidity change detected by the humidity sensor. Determine whether the dehumidification rate is greater than a second predetermined dehumidification threshold, wherein the second predetermined dehumidification threshold is used to determine the speed of the current dehumidification rate; If the dehumidification rate is greater than the second predetermined dehumidification threshold, the real-time distance is increased to the full extension height; If the dehumidification rate is less than or equal to the second predetermined dehumidification threshold, the real-time distance is increased by the increase rate of the second predetermined speed. When the real-time distance is increased to the fully extended height, the dehumidifier stops operating.

6. The control method for a dehumidifier according to claim 5, characterized in that, If the dehumidification rate is greater than the second predetermined dehumidification threshold, then the real-time distance is increased to the fully extended height, followed by: Determine whether the water level distance is greater than the third predetermined water level safety distance; If the water level distance is greater than the third predetermined water level safety distance, the dehumidifier will continue to operate; If the water level distance is less than or equal to the third predetermined water level safety distance, the dehumidifier shall stop operating.

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