Moisture absorption assembly, dehumidification device and dehumidification control method

Abstract

The invention discloses a moisture absorption assembly, a dehumidification device and a dehumidification control method, and relates to the technical field of dehumidification. The moisture absorption assembly comprises a moisture absorption rotating wheel, a vacuum device, a driving mechanism and a heater. The moisture absorption rotating wheel is provided with at least two sub-areas. The vacuum device comprises a vacuum pump and a vacuum cover, and the vacuum cover communicates with the vacuum pump and is arranged opposite to at least one subarea of the moisture absorption rotating wheel. The driving mechanism is in transmission connection with the vacuum cover and drives the vacuum cover to move in the direction close to the moisture absorption rotating wheel. Or the driving mechanism drives the vacuum cover to move in the direction away from the moisture absorption rotating wheel. The heater is arranged on the vacuum cover. According to the technical scheme, the energy consumption during regeneration of the moisture absorption assembly can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of dehumidification technology, and in particular to a moisture absorbing component, a dehumidification device and a dehumidification control method. Background Art

[0002] In the production process of lithium batteries, in order to ensure a comfortable environment and process requirements, the temperature, humidity and cleanliness of the workshop need to be strictly controlled. Dehumidifiers have the function of controlling temperature and cleanliness, so they are widely used in lithium battery production plants. The moisture absorption component in the dehumidifier needs to be regenerated by a heating device after absorbing a certain amount of moisture. However, in the related art, the moisture absorption component requires more energy consumption when it is in the regeneration stage. Summary of the invention

[0003] The main purpose of the present invention is to provide a dehumidification component, a dehumidification device and a dehumidification control method, aiming at reducing the energy consumption during the regeneration of the dehumidification component.

[0004] To achieve the above-mentioned purpose, the moisture absorption component proposed in the present invention includes a moisture absorption wheel, a vacuum device, a driving mechanism and a heater. The moisture absorption wheel is provided with at least two sub-areas. The vacuum device includes a vacuum pump and a vacuum cover, the vacuum cover is connected to the vacuum pump and is arranged opposite to at least one of the sub-areas of the moisture absorption wheel. The driving mechanism is connected to the vacuum cover in a transmission manner and drives the vacuum cover to move in a direction close to the moisture absorption wheel; or the driving mechanism drives the vacuum cover to move in a direction away from the moisture absorption wheel. The heater is arranged on the vacuum cover.

[0005] The technical solution of the present invention is to set at least two sub-areas on the hygroscopic wheel, and the vacuum cover of the vacuum device can be set opposite to at least one sub-area, the vacuum cover is connected to the vacuum pump, and the driving mechanism is connected to the vacuum cover in a transmission manner. Then, when the driving mechanism drives the vacuum cover to move to cover the hygroscopic wheel corresponding to it, a near-vacuum environment can be formed between the vacuum cover and the sub-area set opposite to it under the action of vacuum pump vacuuming. Therefore, the ambient air pressure of at least one sub-area of ​​the hygroscopic wheel can be reduced, thereby reducing the saturated evaporation temperature corresponding to this area, that is, the heating power consumed by the heater arranged on the vacuum cover is reduced, thereby achieving the effect of reducing energy consumption.

[0006] In addition, when the vacuum pump is evacuating the vacuum cover, the heater simultaneously heats up the environment in the vacuum cover, so that the moisture in the sub-area of ​​the hygroscopic wheel corresponding to the vacuum cover will be rapidly desorbed and discharged through the outlet of the vacuum pump, eliminating the need for regeneration exhaust equipment, thereby reducing the waste of energy by taking away the heat from the hygroscopic wheel. By driving the vacuum cover away from the hygroscopic wheel through the driving mechanism, the area of ​​the hygroscopic wheel corresponding to the vacuum cover can be separated from the relatively vacuum environment, so that the process of absorbing moisture from the nearby air can be carried out normally.

[0007] In one embodiment, the moisture absorption component further comprises a rotary motor, which is in transmission connection with the moisture absorption wheel to drive the moisture absorption wheel to rotate. The driving mechanism is electrically connected to the rotary motor; and / or the heater is electrically connected to the rotary motor.

[0008] Such arrangement reduces the need for manual rotation of the moisture absorption wheel, saves labor costs, and achieves the effect of automatically driving the moisture absorption wheel to rotate.

[0009] In one embodiment, the vacuum device further comprises a first connecting pipe and a second connecting pipe. One end of the first connecting pipe is connected to the vacuum pump, and the other end is connected to the vacuum cover. One end of the second connecting pipe is connected to the vacuum cover, and the other end is connected to the outside.

[0010] By setting up a first connecting pipe, one end of which is connected to the vacuum pump and the other end is connected to the vacuum cover, the vacuum pump can be arranged outside the dehumidification device using the desiccant component, so that when the vacuum pump extracts the gas containing water vapor, the risk of water vapor remaining in the dehumidification device and being adsorbed by the desiccant wheel again can be reduced.

[0011] By connecting one end of the second connecting pipe to the vacuum hood and the other end to the outside, the vacuum hood can also communicate with the outside atmosphere, so that the driving mechanism can drive the vacuum hood away from the moisture absorption wheel more easily, reducing the energy consumption of the driving mechanism.

[0012] In one embodiment, at least a portion of the first connecting pipe is a bellows.

[0013] Such an arrangement reduces the risk of the vacuum cover causing the first connecting pipe to become loose from the vacuum pump during movement, or reduces the risk of the vacuum cover causing the first connecting pipe to become loose from the vacuum pump during movement.

[0014] In one embodiment, a first control valve is disposed on the first connecting pipe, and a second control valve is disposed on the second connecting pipe.

[0015] Such arrangement facilitates the effect of automatically controlling the vacuum evacuation of the vacuum cover or facilitating the separation of the vacuum cover from the moisture absorption wheel.

[0016] In one embodiment, the moisture absorption component further comprises a fixed bracket, the moisture absorption wheel is rotatably mounted on the fixed bracket, a first sensor is further mounted on the fixed bracket, and each sub-area is provided with a stopper for sensing by the first sensor. The first sensor is electrically connected to the rotating motor.

[0017] With such an arrangement, it can be achieved that whenever a sub-area corresponds to the first sensor, the rotating motor can be in a stop state, so as to further control the driving mechanism to drive the vacuum cover to move in the direction close to the hygroscopic wheel to evacuate and heat the sub-area on the hygroscopic wheel that is arranged opposite to the vacuum cover, thereby achieving the effect of a regeneration process for this sub-area.

[0018] In one embodiment, a sealing gasket is installed on a side of the vacuum cover facing the moisture absorption wheel, and when the vacuum cover seals and covers the moisture absorption wheel, the sealing gasket is sandwiched between the vacuum cover and the moisture absorption wheel.

[0019] Such an arrangement can improve the vacuum degree of the vacuum pumping, thereby reducing the evaporation temperature of the water vapor as much as possible, thereby reducing the energy consumption during the regeneration process of the moisture absorption component.

[0020] In one embodiment, a second sensor is installed on a side of the vacuum cover facing the moisture absorption wheel, and the driving mechanism and the vacuum pump are both electrically connected to the second sensor.

[0021] With such arrangement, it is possible to detect whether the vacuum cover is in contact with the moisture absorption wheel based on the second sensor. When the second sensor detects whether the vacuum cover is in contact with the moisture absorption wheel, the driving mechanism stops driving the vacuum cover, and the vacuum pump starts to vacuum the space covered by the vacuum cover, thereby improving the degree of automation and regeneration efficiency of the moisture absorption component regeneration process.

[0022] In one embodiment, the moisture absorption component further comprises a supporting frame, and the driving mechanism is disposed on the supporting frame.

[0023] Such an arrangement makes the installation of the driving mechanism more stable and makes the driving mechanism closer to the vacuum hood and the moisture absorption wheel, thereby facilitating the precise driving effect of the vacuum hood.

[0024] In one embodiment, the driving mechanism includes a plurality of pneumatic valves, and the plurality of pneumatic valves are arranged at intervals along the circumference of the vacuum cover.

[0025] Such an arrangement enables the multiple pneumatic valves to work together to simultaneously drive the vacuum hood to move, thereby ensuring that each position of the vacuum hood contacts the moisture absorption wheel almost simultaneously, thereby making the degree of fit between each position of the vacuum hood and the moisture absorption wheel relatively equal.

[0026] In one embodiment, the vacuum cover comprises a first half cover and a second half cover, the opening of the first half cover and the opening of the second half cover are arranged opposite to each other, and the first half cover and the second half cover are respectively arranged on two opposite sides of the moisture absorption wheel.

[0027] Such an arrangement improves the sealing performance of at least a partial area of ​​the moisture absorption wheel and improves the vacuuming efficiency of the vacuum pump.

[0028] The present invention also provides a dehumidification device, comprising the above-mentioned moisture absorbing component.

[0029] The present invention also proposes a dehumidification control method based on the above-mentioned moisture absorbing component, and the dehumidification control method comprises: Controlling the driving mechanism to start, so as to drive the vacuum cover to move toward the direction close to the moisture absorption wheel; The vacuum pump is controlled to start, and the heater is controlled to start.

[0030] By controlling the start of the driving mechanism to drive the vacuum hood to move toward the hygroscopic wheel, and by controlling the start of the vacuum pump, the space inside the vacuum hood can be evacuated to reduce the evaporation temperature, thereby reducing the power consumption of the heater; by controlling the start of the heater, the environment inside the vacuum hood can be heated, thereby causing the moisture on the hygroscopic wheel to evaporate, thereby achieving the effect of regenerating at least a partial area of ​​the hygroscopic wheel.

[0031] By driving the vacuum hood to move through the driving mechanism, the vacuum hood can be placed in a state close to the hygroscopic wheel and a state away from the hygroscopic wheel, thereby flexibly selecting at least part of the sub-area of ​​the hygroscopic wheel to be in the regeneration stage or all the sub-areas to be in the adsorption state.

[0032] In one embodiment, before the steps of controlling the vacuum pump to start and the heater to start, the step further includes: It is obtained that the vacuum cover is in a state of sealingly covering the moisture absorption wheel.

[0033] By configuring in this way, the vacuum pump and the heater are started after the vacuum hood seals the moisture absorption wheel, thereby reducing the energy consumption of the vacuum pump and the heater before the vacuum hood covers the moisture absorption wheel.

[0034] In one embodiment, a pressure sensor is provided on a side of the vacuum cover facing the moisture absorption wheel; and the step of obtaining that the vacuum cover is in a state of sealingly covering the moisture absorption wheel comprises: Acquire a pressure value of the pressure sensor, compare the pressure value with a preset pressure threshold and generate a first comparison result; determining the state of the vacuum cover according to the first comparison result; Under the condition that the first comparison result is that the pressure value is not less than the preset pressure threshold, it is determined that the vacuum cover is in a state of sealingly covering the moisture absorption wheel.

[0035] Such an arrangement can adapt to the situation where the side of the vacuum hood facing the hygroscopic wheel is worn. Even if the side of the vacuum hood facing the hygroscopic wheel is worn, as long as the pressure value measured by the pressure sensor is not less than the preset pressure threshold, it can be determined that the vacuum hood and the hygroscopic wheel are tightly fitted, that is, the vacuum hood is in a state of sealing the hygroscopic wheel, thereby improving the accuracy of determining the state of the vacuum hood.

[0036] In one embodiment, after the steps of controlling the vacuum pump to start and the heater to start, the steps further include: Obtaining the operating time of the vacuum pump and the heater, comparing the operating time with a preset time, and generating a second comparison result; If the second comparison result is that the running time reaches the preset time, the vacuum pump and the heater are controlled to be turned off, and the driving mechanism is controlled to start to drive the vacuum cover away from the moisture absorption wheel.

[0037] By obtaining the operating time of the vacuum pump and the heater, and comparing the operating time with the preset time to generate a second comparison result, it can be determined whether the regeneration process of the sub-area covered by the vacuum cover has been completed. When the second comparison result is that the operating time reaches the preset time, it is determined that the vacuum pump and the heater are started for a long enough time, and the sub-area covered by the vacuum cover has completed the regeneration process. At this time, by controlling the vacuum pump and the heater to turn off, the energy consumption of the vacuum pump and the heater can be reduced.

[0038] In addition, by controlling the drive mechanism to start and drive the vacuum cover away from the moisture absorption wheel, the sub-area that has completed the regeneration process can continue to absorb moisture in the surrounding environment in a timely manner, thereby improving the adsorption efficiency.

[0039] In one embodiment, before the step of controlling the driving mechanism to start up to drive the vacuum cover to move toward the direction close to the moisture absorption wheel, the step further includes: It is obtained that the moisture absorption wheel is in a stopped state.

[0040] Such an arrangement enables the vacuum cover to stably and effectively carry out targeted regeneration processing on the corresponding sub-region, thereby improving the regeneration processing efficiency of the sub-region.

[0041] In one embodiment, the desiccant assembly further comprises a rotating motor, which is in driving connection with the desiccant wheel; after the step of controlling the vacuum pump and the heater to be turned off and controlling the driving mechanism to start to drive the vacuum cover away from the desiccant wheel under the condition that the second comparison result is that the running time reaches the preset time, the step further comprises: The rotating electric machine is controlled to start.

[0042] Such an arrangement can enable the regenerated sub-areas to be in different positions at different times, thereby being able to more comprehensively absorb moisture from the surrounding environment, thereby improving moisture absorption efficiency.

[0043] In one embodiment, the moisture absorption component further includes a fixed bracket, the moisture absorption wheel is rotatably disposed on the fixed bracket, a first sensor is further disposed on the fixed bracket, and each of the sub-areas is provided with a limiter for sensing by the first sensor; after the step of controlling the start of the rotating motor, the step further includes: Under the condition that the first sensor senses the limiter, the moisture absorption wheel is controlled to stop rotating.

[0044] With such an arrangement, each sub-area can be regenerated, so that the moisture absorption wheel can continuously absorb moisture in the surrounding environment, thereby improving the moisture absorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0046] Figure 1 A schematic diagram of the structure of at least one sub-region of a moisture-absorbing component according to an embodiment of the present invention when the sub-region is in a regenerated state; Figure 2 A schematic diagram of the structure of a moisture absorbing component according to an embodiment of the present invention when the moisture absorbing component is completely in a moisture absorbing state; Figure 3 A schematic diagram of the structure of a vacuum device in a moisture absorption component according to an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a moisture absorption wheel in a moisture absorption assembly according to an embodiment of the present invention; Figure 5 A schematic flow chart of a dehumidification control method according to an embodiment of the present invention; Figure 6 A schematic flow chart of a dehumidification control method according to another embodiment of the present invention; Figure 7 for Figure 6 Detailed process diagram of S40; Figure 8 A schematic flow chart of a dehumidification control method according to another embodiment of the present invention.

[0047] Description of Figure Numbers: 100, moisture absorption wheel; 101, sub-area; 200, vacuum device; 210, vacuum pump; 220, vacuum cover; 230, first connecting pipe; 240, second connecting pipe; 250, first control valve; 260, second control valve; 270, support frame; 300, driving mechanism; 310, pneumatic valve; 400, heater; First sensor; 600, sealing gasket.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0053] In the production process of batteries, in order to ensure a comfortable environment and process requirements, the temperature, humidity and cleanliness of the workshop need to be strictly controlled. Dehumidification equipment has the function of controlling humidity, so it is widely used in lithium battery production plants. The moisture absorption component in the dehumidification equipment needs to be regenerated by a heating device after absorbing a certain amount of moisture. The adsorption dehumidification principle in the related technology is to use adsorption materials such as alumina and silica gel to make a loose and porous rotor. When air flows through the rotor, the adsorbent has a strong adsorption effect on moisture, adsorbing the moisture in the air. As the rotor rotates, the area close to saturation is transferred to the regeneration area. In the regeneration area, the rotor is heated by the high-temperature regeneration wind, the moisture adsorbed in the rotor vaporizes and evaporates, and the adsorbent regenerates and becomes dry. As the rotor rotates, the rotor enters the adsorption area, and the dry adsorbent adsorbs the moisture in the air again.

[0054] However, the wheel is cooled in the adsorption zone by the chilled water supplied by the refrigeration unit in the plant. The temperature in the regeneration zone is raised by heating equipment such as electric heating, steam heating, and hot oil heating. When entering the regeneration zone from the adsorption zone, the alternation of hot and cold has a great impact on the loss of energy consumption. Secondly, the regeneration wind takes away a lot of heat when leaving the dehumidifier, which also has a certain impact on the operating energy consumption of the dehumidifier. Therefore, the moisture absorption component in the related art needs to consume more energy when it is in the regeneration stage.

[0055] In order to reduce the energy consumption of the moisture absorption component during the regeneration stage, the present invention provides a moisture absorption component.

[0056] Please refer to Figures 1 to 4 In one embodiment of the present invention, the moisture absorption assembly includes a moisture absorption wheel 100, a vacuum device 200, a driving mechanism 300 and a heater 400. The moisture absorption wheel 100 is provided with at least two sub-areas 101. The vacuum device 200 includes a vacuum pump 210 and a vacuum cover 220, the vacuum cover 220 is connected to the vacuum pump 210, and is arranged opposite to at least one sub-area 101 of the moisture absorption wheel 100. The driving mechanism 300 is connected to the vacuum cover 220 in a transmission manner, and drives the vacuum cover 220 to move in a direction close to the moisture absorption wheel 100; or, the driving mechanism 300 drives the vacuum cover 220 to move in a direction away from the moisture absorption wheel 100. The heater 400 is arranged on the vacuum cover 220.

[0057] The hygroscopic wheel 100 refers to a wheel body that can rotate and absorb moisture in the environment. The wheel may include a fixed ring and a hygroscopic body arranged in the fixed ring, and such a configuration can improve the strength of the wheel. The fixed ring may be made of metal, plastic or other materials. The hygroscopic body is made of hydrophilic materials, such as asbestos, glass fiber, paper material, etc. Of course, in another example, if the strength requirement of the wheel is not high, the wheel may also only include a circular hygroscopic body. The hygroscopic wheel 100 is provided with at least two sub-areas 101, for example, the hygroscopic wheel 100 may be provided with two sub-areas 101, three sub-areas 101 or more sub-areas 101, etc. The areas of the sub-areas 101 of the hygroscopic wheel 100 may be equal or unequal. In order to have a good regeneration effect on each sub-area 101, each sub-area 101 may be set to the same size. By setting at least two sub-areas 101, the vacuum cover 220 of the vacuum device 200 can be set relative to only one or several sub-areas 101, so as to perform regeneration treatment; while other sub-areas 101 that are not relative to the vacuum cover 220 of the vacuum device 200 can continue to absorb moisture from the environment. In order to divide the various areas of the moisture absorption wheel 100, based on the above-mentioned solution of setting a fixed ring on the wheel, the wheel can also be provided with support bars, which are distributed in a ring array and connected to the fixed ring, so that a sub-area 101 is formed between every two adjacent support bars.

[0058] The vacuum device 200 refers to a device capable of performing vacuuming. The vacuum device 200 includes a vacuum pump 210 and a vacuum cover 220. The vacuum pump 210 refers to a pump body capable of providing power for the vacuuming action. The vacuum cover 220 refers to a cover structure for forming a vacuum environment. The opening shape of the vacuum cover 220 can be the same as the shape of the sub-area 101 of the moisture absorption wheel 100, that is, it can be fan-shaped or semicircular. Or the opening shape of the vacuum cover 220 can also be different from the shape of the sub-area 101 of the moisture absorption wheel 100, for example, the opening shape of the vacuum cover 220 can be rectangular, circular or triangular, as long as the vacuum cover 220 can be opposite to the moisture absorption wheel 100. It can be understood that in order to maximize the regeneration of each sub-area 101 of the moisture absorption wheel 100, the opening shape of the vacuum cover 220 can be set to be the same as the shape and size of the sub-area 101 of the moisture absorption wheel 100. When the vacuum cover 220 is connected to the vacuum pump 210, it can be directly connected or indirectly connected. When the vacuum cover 220 is indirectly connected to the vacuum pump 210, the vacuum device 200 may further include a connecting pipe, and the vacuum cover 220 and the vacuum pump 210 are connected through the connecting pipe. The moisture absorption wheel 100 has two end faces arranged opposite to each other, wherein only one end face of the moisture absorption wheel 100 can provide moisture absorption, and the other end face is supported by a material that cannot absorb moisture, such as metal or plastic material; in this case, the vacuum cover 220 of the vacuum device 200 can only be arranged opposite to the end face that can absorb moisture in the environment. Of course, the two opposite end faces of the moisture absorption wheel 100 can both provide moisture absorption, and in this case, the vacuum cover 220 of the vacuum device 200 can be provided with two, or the vacuum cover 220 is in a U-shaped structure, so that the vacuum cover 220 can seal the cover or provide a gap on both opposite sides of the moisture absorption wheel 100, so that the area where the moisture absorption wheel 100 and the vacuum cover 220 are arranged opposite to each other can form an area with lower air pressure, thereby facilitating the reduction of the evaporation temperature of the area and achieving a good regeneration effect. It is understandable that when the vacuum pump 210 evacuates the space between the vacuum cover 220 and the moisture absorption wheel 100, the ambient air pressure here is low, so the effect of reducing the saturation temperature of water vapor can be achieved. For example, when the conventional regeneration equipment without the vacuum device 200 regenerates the moisture absorption wheel 100, it is necessary to heat the regenerated part to 100°C, or even higher than 100°C, so that the moisture on the moisture absorption wheel 100 can be converted into water vapor; while in the present application, by setting up the vacuum device 200, taking the environment of -80kpa as an example, the evaporation temperature of water vapor can be reduced to 60°C, so the heating power of the heater 400 can be reduced, thereby achieving the effect of reducing energy consumption. In addition, there is no need to set up a regeneration exhaust device in the present application, so the risk of taking away a large amount of heat from the moisture absorption wheel 100 during the exhaust process can be reduced, further reducing the energy consumption of the dehumidification device using the moisture absorption component.

[0059] The driving mechanism 300 refers to a mechanism that drives the vacuum cover 220 to move in a direction away from the moisture absorption wheel 100 and in a direction close to the moisture absorption wheel 100. When the driving mechanism 300 drives the vacuum cover 220 to move, it can drive the vacuum cover 220 to do translational motion, and it can also drive the vacuum cover 220 to do rotational motion, so that the vacuum cover 220 has a state close to the moisture absorption wheel 100 and a state away from the moisture absorption wheel 100 to avoid the rotation of the moisture absorption wheel 100. When the driving mechanism 300 drives the vacuum cover 220 to do translational motion, the driving mechanism 300 may include a cylinder or a pneumatic valve 310, or the driving mechanism 300 includes a lead screw nut assembly, a gear rack assembly or a linear motor, etc. When the driving mechanism 300 drives the vacuum cover 220 to do rotational motion, the driving mechanism 300 may include a driving motor and a connecting rod assembly, or may include a driving motor and a gear assembly, etc. It should be noted that since the above examples of the driving mechanism 300 are all well-known technologies to those skilled in the art, they will not be described in detail. When there are two vacuum covers 220, and the two vacuum covers 220 are respectively opposite to the two opposite end surfaces of the moisture absorption wheel 100, each vacuum cover 220 can be connected to a driving mechanism 300; or the two vacuum covers 220 are connected to the same driving mechanism 300, that is, one driving mechanism 300 can simultaneously drive the two vacuum covers 220 to move in the direction close to the moisture absorption wheel 100 or drive the two vacuum covers 220 to move in the direction away from the moisture absorption wheel 100. When the driving mechanism 300 drives the vacuum cover 220 to move in the direction close to the moisture absorption wheel 100, a gap can be set between the vacuum cover 220 and the moisture absorption wheel 100, as long as the air pressure between the vacuum cover 220 and the corresponding sub-area 101 is lower than the air pressure near other sub-areas 101 in the starting state of the vacuum pump 210, so as to achieve the effect of regenerating the corresponding sub-area 101. At the same time, the moisture absorption wheel 100 can be in a rotating state or a stopped state in the regeneration state. Alternatively, when the driving mechanism 300 drives the vacuum cover 220 to move toward the direction close to the moisture absorption wheel 100, there may be no gap between the vacuum cover 220 and the moisture absorption wheel 100, that is, the vacuum cover 220 can seal the sub-area 101 of the moisture absorption wheel 100 that is arranged opposite to the vacuum cover 220, thereby improving the vacuum pump 210's vacuum pumping efficiency. At the same time, the moisture absorption wheel 100 may be in a state of stopping rotation; of course, after the vacuum cover 220 seals and covers the moisture absorption wheel 100 and still allows the vacuum cover 220 to rotate, the moisture absorption wheel 100 may also rotate synchronously with the vacuum cover 220, that is, the moisture absorption wheel 100 can still be in a state of rotating in the regeneration state.

[0060] The heater 400 is a device for heating the environment in the vacuum cover 220. The heater 400 can be arranged inside the vacuum cover 220 or outside the vacuum cover 220. When the vacuum cover 220 covers the moisture absorption wheel 100 to form an almost completely vacuum state, the heater 400 can use a radiation heating method, for example, the heater 400 is a microwave heater 400. Alternatively, when the vacuum cover 220 is not completely a vacuum environment, the heater 400 can also use convection heating or heat conduction heating methods, for example, the heater 400 can be a heating wire or other heating devices.

[0061] The technical solution of the present invention is to set at least two sub-areas 101 on the moisture absorption wheel 100, and the vacuum cover 220 of the vacuum device 200 can be set relative to at least one sub-area 101, the vacuum cover 220 is connected to the vacuum pump 210, and the driving mechanism 300 is connected to the vacuum cover 220 in a transmission connection. Then, when the driving mechanism 300 drives the vacuum cover 220 to move so as to gradually approach the corresponding moisture absorption wheel 100, under the vacuum pump 210, a relatively vacuum environment can be gradually formed between the vacuum cover 220 and the sub-area 101 covered by it. Therefore, the ambient air pressure of at least one sub-area 101 of the moisture absorption wheel 100 can be reduced, thereby reducing the saturated evaporation temperature corresponding to this area, that is, the heating power consumed by the heater 400 arranged on the vacuum cover 220 is reduced, thereby achieving the effect of reducing energy consumption. In addition, during the process of the vacuum pump 210 evacuating the vacuum cover 220, the heater 400 simultaneously heats up the environment in the vacuum cover 220, so that the moisture in the sub-area 101 of the hygroscopic wheel 100 corresponding to the vacuum cover 220 will be rapidly desorbed and desorbed, so that the water vapor is discharged along the outlet of the vacuum pump 210, eliminating the regeneration exhaust device, thereby reducing the waste of energy by taking away the heat on the hygroscopic wheel 100. By driving the vacuum cover 220 to move away from the hygroscopic wheel 100 through the driving mechanism 300, the area of ​​the hygroscopic wheel 100 corresponding to the vacuum cover 220 can be separated from the relatively vacuum environment, so that the process of absorbing moisture in the nearby air can be carried out normally.

[0062] In some embodiments of the present invention, the moisture absorption assembly further includes a rotary motor (not shown), which is in transmission connection with the moisture absorption wheel 100 to drive the moisture absorption wheel 100 to rotate. The driving mechanism 300 is electrically connected to the rotary motor; and / or the heater 400 is electrically connected to the rotary motor.

[0063] The rotary motor refers to a component used to provide power for the rotation of the moisture absorption wheel 100. The rotary motor can be directly connected to the moisture absorption wheel 100 by transmission, or can be connected by transmission through other transmission components. When the rotary motor is directly connected to the moisture absorption wheel 100 by transmission, a sleeve for inserting the output shaft of the rotary motor is provided in the middle of the moisture absorption wheel 100. The sleeve and the output shaft of the rotary motor can be connected by a key or the sleeve adopts a non-circular structure to cooperate with the output shaft, so as to achieve the effect of direct transmission connection between the moisture absorption wheel 100 and the rotary motor, thereby simplifying the structure of the moisture absorption component. When the rotary motor is connected to the moisture absorption wheel 100 by transmission through other transmission components, the transmission component can be a connecting rod component or a gear component, so that the transmission ratio can be changed by the transmission component, thereby achieving the effect of adjusting the angular velocity of the moisture absorption wheel 100, so as to ensure that the moisture absorption wheel 100 rotates within a suitable rotation angular velocity range, thereby achieving a better moisture absorption effect.

[0064] The driving mechanism 300 is electrically connected to the rotating motor, and the effect of controlling the driving mechanism 300 to change the motion state can be achieved by the state of the rotating motor. Specifically, in one example, when the rotating motor is in a normal working state, that is, when the rotating motor drives the moisture absorption wheel 100 to rotate, the driving mechanism 300 can be controlled to be in a shutdown state, so that the vacuum cover 220 is kept at a certain distance from the moisture absorption wheel 100 to avoid the risk of the vacuum cover 220 interfering with the rotation of the moisture absorption wheel 100. When the rotating motor is in a shutdown state, the driving mechanism 300 can be turned on and drive the vacuum cover 220 to move in a direction close to the moisture absorption wheel 100 and approach at least one sub-area 101 of the moisture absorption wheel 100, thereby achieving the effect of automatically controlling whether the vacuum cover 220 of the vacuum device 200 seals the moisture absorption wheel 100 according to the state of the rotating motor or the moisture absorption wheel 100 to regenerate the area sealed by the vacuum cover 220. Of course, in other examples, when the rotating motor drives the desiccant wheel 100 to rotate, the driving mechanism 300 can also drive the vacuum cover 220 to move toward the direction of the desiccant wheel 100, so that during the rotation of the desiccant wheel 100, its different sub-areas 101 are respectively arranged relative to the vacuum cover 220 at different times, thereby achieving the effect of real-time regeneration of different sub-areas 101.

[0065] By connecting the rotating motor to the moisture absorption wheel 100 in a transmission manner, and the driving mechanism 300 to the rotating motor in an electrical connection, the moisture absorption wheel 100 can be driven to rotate by the rotating motor, thereby reducing the need for manual rotation of the moisture absorption wheel 100, saving labor costs, achieving the effect of automatically driving the moisture absorption wheel 100 to rotate, and ensuring the stability of the rotation speed of the moisture absorption wheel 100. By connecting the driving mechanism 300 to the rotating motor in an electrical connection, the driving mechanism 300 and the rotating motor can be controlled mutually, so that the driving mechanism 300 can be controlled according to the state of the rotating motor, thereby achieving the effect of controlling whether to perform regeneration processing.

[0066] like Figure 3 As shown, in one embodiment of the present invention, the vacuum device 200 further includes a first connecting pipe 230 and a second connecting pipe 240. One end of the first connecting pipe 230 is connected to the vacuum pump 210, and the other end is connected to the vacuum cover 220. One end of the second connecting pipe 240 is connected to the vacuum cover 220, and the other end is connected to the outside.

[0067] The first connecting pipe 230 is a pipe for connecting the vacuum pump 210 and the vacuum cover 220. The first connecting pipe 230 may be in a straight line or a curved line. The first connecting pipe 230 may be made of metal or plastic.

[0068] The second connecting pipe 240 refers to a pipeline for connecting the vacuum cover 220 with the outside world. The first connecting pipe 230 can be straight or curved. The first connecting pipe 230 can be made of metal or plastic. It should be noted that when it is necessary to evacuate the vacuum cover 220, the second connecting pipe 240 in the present invention is in a state of being isolated from the external environment, that is, the second connecting pipe 240 is in a blocked state, for example, the second connecting pipe 240 can be controlled to be in a blocked state by a solenoid valve arranged on the second connecting pipe 240, or by installing a sealing plug or a sealing column at one end of the second connecting pipe away from the vacuum cover 220, so as to achieve the effect of blocking the second connecting pipe 240; and the first solenoid valve can be arranged on the first connecting pipe 230 or not. When the moisture absorption wheel 100 needs to rotate, the vacuum pump 210 can be turned off or the first electromagnetic valve provided on the first connecting pipe 230 can be changed to connect the second connecting pipe 240 with the outside. At this time, the state of the electromagnetic valve can be controlled to control the second connecting pipe 240 to connect the vacuum cover 220 with the outside, or the sealing plug or sealing column at one end of the second connecting pipe 240 away from the vacuum cover 220 can be unplugged to achieve the effect of connecting the vacuum cover 220 with the outside. Of course, in other examples, a switching valve can be provided, and the switching valve has at least three ports, and the three ports are connected to the vacuum cover 220, the outside and the vacuum pump 210 respectively. By changing the state of the switching valve, the effect of connecting the vacuum cover 220 with the outside or connecting the vacuum cover 220 with the vacuum pump 210 can be achieved.

[0069] By connecting one end of the first connecting pipe 230 to the vacuum pump 210 and the other end to the vacuum cover 220, the flexibility of the location of the vacuum pump 210 can be improved, and the situation that the driving mechanism 300 needs to drive the vacuum pump 210 to move synchronously when driving the vacuum cover 220 can be reduced, thereby reducing the energy consumption of the driving mechanism 300. In addition, such a setting can make the vacuum pump 210 be arranged outside the dehumidification device using the moisture absorption component, so that when the vacuum pump 210 extracts the gas with water vapor, the risk of water vapor remaining in the dehumidification device and being adsorbed by the moisture absorption wheel 100 again can be reduced. By connecting one end of the second connecting pipe 240 to the vacuum cover 220 and the other end to the outside world, the vacuum cover 220 can also be connected to the outside atmosphere, so that the driving mechanism 300 can drive the vacuum cover 220 away from the moisture absorption wheel 100 more easily, thereby reducing the energy consumption of the driving mechanism 300.

[0070] like Figure 3 As shown, in one embodiment of the present invention, at least a portion of the first connecting pipe 230 is a bellows.

[0071] By configuring at least a portion of the first connecting tube 230 as a bellows, the bellows can be bent and deformed in any direction, thereby allowing the vacuum pump 210 to be placed more flexibly. In addition, such a configuration can also enable the first connecting tube 230 to have the ability to be telescopically deformed, thereby reducing the risk of the first connecting tube 230 and the vacuum pump 210 being loosened from each other during the movement of the vacuum cover 220, or reducing the risk of the vacuum cover 220 and the first connecting tube 230 being loosened from each other during the movement.

[0072] like Figure 3 As shown, in one embodiment of the present invention, a first control valve 250 is disposed on the first connecting pipe 230 , and a second control valve 260 is disposed on the second connecting pipe 240 .

[0073] The first control valve 250 is a valve for controlling the on-off of the first connecting pipe 230 , and may be a solenoid valve or an electric valve.

[0074] The second control valve 260 is a valve for controlling the on-off of the second connecting pipe 240 , and may be a solenoid valve or an electric valve.

[0075] By setting a first control valve 250 on the first connecting pipe 230 and a second control valve 260 on the second connecting pipe 240, it is possible to control the states of the first control valve 250 and the second control valve 260 to control the first connecting pipe 230 to be in a connected state or the second connecting pipe 240 to be in a connected state, thereby facilitating the automatic control of the vacuum hood 220 to be evacuated or the vacuum hood 220 to be separated from the moisture absorption wheel 100.

[0076] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the moisture absorption assembly further comprises a fixed bracket (not shown), the moisture absorption wheel 100 is rotatably disposed on the fixed bracket, a first sensor 500 is further disposed on the fixed bracket, and each sub-area 101 is provided with a stopper for sensing by the first sensor 500. The first sensor 500 is electrically connected to the rotating motor.

[0077] The fixed support refers to a frame structure for supporting the rotating wheel. The fixed support may include a supporting base and a mounting portion disposed on the supporting base, and the moisture absorption rotating wheel 100 is rotatably disposed on the mounting portion. The mounting portion may be annular or arc-shaped, or the mounting portion may include a column and a rotating shaft disposed at an angle to the column.

[0078] The first sensor 500 is a sensor for sensing the rotation position or angle of the moisture absorption wheel 100. The first sensor 500 may be a mechanical sensor, a magnetic sensor, or a photoelectric sensor.

[0079] The limiting member refers to a component provided in each sub-region 101 and used for sensing by the first sensor 500. For example, in one example, the first sensor 500 is a mechanical sensor, such as a micro switch, and the limiting member can be a limiting member such as a limiting rod or a limiting plate provided on each sub-region 101. During the rotation of the moisture absorption wheel 100, each time the limiting member of a sub-region 101 touches the micro switch, the micro switch receives a signal that the moisture absorption wheel 100 rotates to a certain position, and then the micro switch can transmit a signal and control the rotating motor to be in a shutdown state, thereby controlling the driving mechanism 300 to drive the vacuum cover 220 to move in a direction close to the moisture absorption wheel 100 to gradually approach the area corresponding to the moisture absorption wheel 100, and then subsequently causing the vacuum pump 210 to evacuate the gas in the vacuum cover 220 and heat the environment in the vacuum cover 220 through the heater 400, so as to automatically achieve the effect of regenerating the area covered by the vacuum cover 220. In another example, the first sensor 500 can also be a photoelectric sensor, and the limiting member provided in each sub-area 101 can be a limiting rod. When the hygroscopic wheel 100 rotates, when the limiting rod of one of the sub-areas 101 passes through the photoelectric sensor, the photoelectric sensor senses that the limiting rod has passed, which means that a sub-area 101 has been replaced and is arranged opposite to the vacuum cover 220. At this time, the signal can be transmitted to the rotating motor through the photoelectric sensor to control the rotating motor to be in a shutdown state, and then the driving mechanism 300 is controlled to drive the vacuum cover 220 to move in the direction close to the hygroscopic wheel 100 to gradually approach the area corresponding to the hygroscopic wheel 100. In another example, the first sensor 500 is a magnetic induction probe, and the limiting piece provided in each sub-area 101 is a magnet. When the magnet of one of the sub-areas 101 is rotated to correspond to the magnetic induction probe, the magnetic induction probe receives the induced magnet, which means that a sub-area 101 is replaced and is arranged relative to the vacuum cover 220. At this time, the signal can be transmitted to the rotating motor through the magnetic induction probe to control the rotating motor to be in a shutdown state, and then the driving mechanism 300 is controlled to drive the vacuum cover 220 to move in the direction close to the hygroscopic wheel 100 to gradually approach the area corresponding to the hygroscopic wheel 100.

[0080] By rotating the moisture absorption wheel 100 and setting it on a fixed bracket, a first sensor 500 is provided on the fixed bracket, and each sub-area 101 is provided with a limiter for the first sensor 500 to sense. When the moisture absorption wheel 100 rotates, when the limiter of each sub-area 101 rotates to a position corresponding to the first sensor 500, the first sensor 500 can sense it. Therefore, each time a sub-area 101 rotates and corresponds to the first sensor 500, a different sub-area 101 will correspond to the vacuum cover 220. By electrically connecting the first sensor 500 to the rotating motor, the state of the rotating motor can be controlled by the signal obtained by the first sensor 500, so that whenever a sub-area 101 corresponds to the first sensor 500, the rotating motor can be in a stopped state, so as to further control the driving mechanism 300 to drive the vacuum cover 220 to move toward the direction close to the hygroscopic wheel 100 to evacuate and heat the sub-area 101 on the hygroscopic wheel 100 that is arranged opposite to the vacuum cover 220, thereby achieving the effect of a regeneration process for this sub-area 101.

[0081] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, a sealing gasket 600 is installed on the side of the vacuum cover 220 facing the moisture absorption wheel 100. When the vacuum cover 220 seals and covers the moisture absorption wheel 100, the sealing gasket 600 is sandwiched between the vacuum cover 220 and the moisture absorption wheel 100.

[0082] The sealing gasket 600 is a component used to seal the gap between the vacuum cover 220 and the rotating wheel, and the sealing gasket 600 can be made of rubber or silicone. When the sealing gasket 600 is arranged on the side of the vacuum cover 220 facing the moisture absorption rotating wheel 100, it can be connected to the vacuum cover 220 by bonding, welding, clamping, etc.

[0083] By sandwiching the sealing gasket 600 between the vacuum cover 220 and the moisture absorption wheel 100, the sealing between the vacuum cover 220 and the moisture absorption wheel 100 can be improved, so that when the area where the vacuum cover 220 covers the moisture absorption wheel 100 is evacuated under the action of the vacuum pump 210, the vacuuming efficiency can be improved, and the vacuum degree can also be improved, thereby reducing the evaporation temperature of water vapor as much as possible, thereby reducing the energy consumption during the regeneration process of the moisture absorption component.

[0084] In one embodiment of the present invention, a second sensor (not shown) is installed on the side of the vacuum cover 220 facing the moisture absorption wheel 100, and the driving mechanism 300 and the vacuum pump 210 are both electrically connected to the second sensor.

[0085] The second sensor is a detection component for sensing the position of the vacuum cover 220 to further determine whether the vacuum cover 220 reaches a position of being in contact with the moisture absorption wheel 100 after moving a certain distance or for a certain period of time. The second sensor may be a pressure sensor, a photoelectric sensor or other sensors.

[0086] When the second sensor is a photoelectric sensor, such as an infrared sensor, the second sensor can be fixedly arranged on the inner wall of the vacuum cover 220, or can be arranged on the end surface of the vacuum cover 220 facing the moisture absorption wheel 100. The distance between the vacuum cover 220 and the moisture absorption wheel 100 is detected by the pressure sensor to achieve the effect of judging whether the vacuum cover 220 has moved to the right position to fit with the moisture absorption wheel 100. For example, when the second sensor is embedded in the side of the vacuum cover 220 facing the moisture absorption wheel 100 and is arranged flush with the end face of the vacuum cover 220 facing the moisture absorption wheel 100, when the second sensor senses that the distance from the end face of the vacuum cover 220 facing the moisture absorption wheel 100 to the end face of the moisture absorption wheel 100 is zero, it is determined that the vacuum cover 220 and the moisture absorption wheel 100 are in contact with each other. At this time, the signal can be transmitted to the driving mechanism 300 and the vacuum pump 210 through the second sensor. After receiving the signal, the driving mechanism 300 stops driving the vacuum cover 220, and the vacuum pump 210 starts after receiving the signal to vacuumize the space covered by the vacuum cover 220 on the moisture absorption wheel 100.

[0087] When the second sensor is a pressure sensor, the pressure sensor can be arranged on the inner wall of the vacuum cover 220, or on the end surface of the vacuum cover 220 close to the moisture absorption wheel 100. The pressure sensor detects the mutual abutment between the vacuum cover 220 and the moisture absorption wheel 100, so as to judge whether the vacuum cover 220 is moved to the right position to fit with the moisture absorption wheel 100; when the pressure sensor detects that the mutual abutment between the vacuum cover 220 and the moisture absorption wheel 100 reaches a preset pressure value, the signal is transmitted to the driving mechanism 300 and the vacuum pump 210. After receiving the signal, the driving mechanism 300 stops driving the vacuum cover 220, and the vacuum pump 210 starts after receiving the signal, so as to evacuate the space covered by the vacuum cover 220 to the moisture absorption wheel 100. It is understandable that, since the end surface of the vacuum hood 220 close to the moisture absorption wheel 100 may be worn, the scheme of limiting the stroke of the vacuum hood 220 to determine the contact between the vacuum hood 220 and the moisture absorption wheel 100 may result in the vacuum hood 220 not being able to fit tightly with the moisture absorption wheel 100. When the second sensor is a pressure sensor, the risk of the vacuum hood 220 being difficult to fit tightly with the moisture absorption wheel 100 due to wear can be avoided. By installing a second sensor on the side of the vacuum hood 220 facing the moisture absorption wheel 100, the position of the vacuum hood 220 when it moves in the direction close to the moisture absorption wheel 100 can be sensed by the second sensor, thereby facilitating the determination of whether the vacuum hood 220 and the moisture absorption wheel 100 are in a mutually fitting or close state, and further accurately controlling whether the vacuum pump 210 starts to start.

[0088] By installing a second sensor on the side of the vacuum cover 220 facing the moisture absorption wheel 100, and the driving mechanism 300 and the vacuum pump 210 are both electrically connected to the second sensor, it is possible to detect whether the vacuum cover 220 has come into contact with the moisture absorption wheel 100 based on the second sensor. When the second sensor detects whether the vacuum cover 220 has come into contact with the moisture absorption wheel 100, the driving mechanism 300 stops driving the vacuum cover 220, and the vacuum pump 210 starts and starts to vacuum the space covered by the vacuum cover 220. This improves the degree of automation and regeneration efficiency of the regeneration process of the moisture absorption component, reduces the risk of the vacuum cover 220 damaging the moisture absorption wheel 100, and achieves the effect of timely regenerating at least one sub-area 101 of the moisture absorption wheel 100.

[0089] Please refer to Figures 1 to 3 In one embodiment of the present invention, the moisture absorbing component further includes a supporting frame 270 , and the driving mechanism 300 is disposed on the supporting frame 270 .

[0090] The support frame 270 refers to a frame structure for supporting the driving mechanism 300. The support frame 270 may include a support structure formed in a block, disc or columnar structure. The support frame 270 may be made of metal or plastic.

[0091] By arranging the driving mechanism 300 on the support frame 270 , the installation of the driving mechanism 300 can be made more stable, and the driving mechanism 300 can be made closer to the vacuum cover 220 and the moisture absorption wheel 100 , thereby facilitating the precise driving effect of the vacuum cover 220 .

[0092] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the driving mechanism 300 includes a plurality of pneumatic valves 310 , and the plurality of pneumatic valves 310 are arranged at intervals along the circumference of the vacuum cover 220 .

[0093] The pneumatic valve 310 refers to a valve driven by compressed air. The pneumatic valve 310 is composed of an actuator and a regulating mechanism. The actuator is the thrust component of the pneumatic valve 310, that is, the mechanism that enables the pneumatic valve 310 to move. The valve body is the regulating component of the pneumatic valve 310, which is in direct contact with the regulating medium, adjusts the flow rate of the fluid, and makes the pressure in the valve body different according to the flow rate of the fluid, and then generates corresponding thrust according to the size of the pressure, pushing the vacuum cover 220 to move. Multiple pneumatic valves 310 refer to two pneumatic valves 310, three pneumatic valves 310 or more pneumatic valves 310.

[0094] By making the driving mechanism 300 include a plurality of pneumatic valves 310, the structure of the driving mechanism 300 is relatively simple, and the pneumatic valves 310 can be used to push the vacuum cover 220 to move, and the effect of controlling the movement stroke of the vacuum cover 220 can be achieved, so as to ensure that the vacuum cover 220 can contact with the moisture absorption wheel 100 and form a closed space together after reaching the preset stroke. By arranging the plurality of pneumatic valves 310 at intervals along the circumference of the vacuum cover 220, the plurality of pneumatic valves 310 can simultaneously drive the vacuum cover 220 to move when working in coordination, so as to ensure that each position of the vacuum cover 220 contacts the moisture absorption wheel 100 almost at the same time, and furthermore, the degree of contact between each position of the vacuum cover 220 and the moisture absorption wheel 100 is relatively equal.

[0095] In one embodiment of the present invention, the vacuum cover 220 includes a first half cover (not shown) and a second half cover (not shown), the opening of the first half cover and the opening of the second half cover are arranged opposite to each other, and the first half cover and the second half cover are respectively covered on opposite sides of the moisture absorption wheel 100.

[0096] The first half cover refers to a part of the cover body of the vacuum cover 220, and the volume of the first half cover may be half or close to half of the volume of the entire vacuum cover 220. The shape of the first half cover may be circular, triangular, fan-shaped or other shapes.

[0097] The second half cover refers to a part of the cover body of the vacuum cover 220, and the volume of the second half cover may be half or close to half of the volume of the entire vacuum cover 220. The shape of the second half cover may be circular, triangular, fan-shaped or other shapes.

[0098] The shapes of the first half cover and the second half cover can be the same or different. The volume of the first half cover can be the same or different from that of the second half cover. The first half cover and the second half cover can be arranged separately or in an integrated structure. It is understandable that when the first half cover and the second half cover are arranged separately, it is convenient to replace the first half cover or the second half cover, thereby reducing the replacement cost. At this time, the first half cover and the second half cover can be driven by the same driving mechanism 300, or by different driving mechanisms 300.

[0099] By arranging the opening of the first half cover and the opening of the second half cover opposite to each other, and the first half cover and the second half cover are respectively covered on the opposite sides of the hygroscopic wheel 100, the first half cover and the second half cover can jointly seal and cover the opposite sides of the hygroscopic wheel 100, thereby improving the sealing performance of at least a part of the hygroscopic wheel 100 and improving the vacuuming efficiency of the vacuum pump 210.

[0100] The present invention also proposes a dehumidification device, including a desiccant component. The specific structure of the desiccant component refers to the above-mentioned embodiment. Since the dehumidification device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0101] With such a configuration, when the driving mechanism 300 drives the vacuum cover 220 to move and cover the corresponding hygroscopic wheel 100, a near-vacuum environment can be formed between the vacuum cover 220 and the sub-area 101 covered by the vacuum pump 210 under the vacuuming action, so that the ambient air pressure of at least one sub-area 101 of the hygroscopic wheel 100 can be reduced, thereby reducing the saturated evaporation temperature corresponding to this area, that is, the heating power consumed by the heater 400 disposed on the vacuum cover 220 is reduced, thereby achieving the effect of reducing energy consumption. In addition, during the process of the vacuum pump 210 evacuating the vacuum cover 220, the heater 400 simultaneously heats up the environment in the vacuum cover 220, so that the moisture in the sub-area 101 of the hygroscopic wheel 100 corresponding to the vacuum cover 220 is rapidly desorbed and desorbed, so that the water vapor is discharged along the outlet of the vacuum pump 210, eliminating the regeneration exhaust device, thereby reducing the situation of taking away the heat on the hygroscopic wheel 100 and wasting energy.

[0102] The present invention also proposes a dehumidification control method based on the above-mentioned dehumidification component. Since the dehumidification control method is based on the dehumidification component that adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. Figure 5 As shown, the dehumidification control method includes: S30: controlling the driving mechanism 300 to start, so as to drive the vacuum cover 220 to move towards the direction close to the moisture absorption wheel 100.

[0103] By controlling the driving mechanism 300 to start, the vacuum cover 220 is driven to move toward the direction close to the moisture absorption wheel 100, so that the vacuum cover 220 can gradually approach at least one sub-region 101 of the moisture absorption wheel 100, thereby providing a good environment for the subsequent vacuuming action of the vacuum pump 210. The driving device can drive the vacuum cover 220 to perform translational motion, or can also drive the vacuum cover 220 to rotate, so as to approach at least one sub-region 101 of the moisture absorption wheel 100.

[0104] S50: Control the vacuum pump 210 to start, and control the heater 400 to start.

[0105] When the vacuum cover 220 moves close to the hygroscopic wheel 100, the vacuum device 200 is controlled to start, so as to achieve the effect of evacuating the space covered by the vacuum cover 220, thereby reducing the air pressure in the vacuum cover 220, thereby reducing the evaporation temperature, and facilitating the reduction of the energy consumed when regenerating the hygroscopic wheel 100. Specifically, in one example, the vacuum pump 210 and / or the heater 400 can be started during the movement of the vacuum cover 220 towards the hygroscopic wheel 100. It can be understood that when the vacuum cover 220 approaches the hygroscopic wheel 100, the heater 400 is controlled to start, and the heater 400 can heat the environment in the vacuum cover 220, so that when the moisture in the sub-area 101 of the hygroscopic wheel 100 opposite to the vacuum cover 220 is heated to the evaporation temperature corresponding to the current air pressure value, it becomes water vapor and is discharged with the vacuum pump 210, thereby achieving the effect of regenerating the sub-area 101 of the hygroscopic wheel 100 corresponding to the vacuum cover 220. Of course, in another example, after the vacuum cover 220 completely covers at least one sub-area 101 of the moisture absorption wheel 100, the vacuum pump 210 and the heater 400 can be controlled to start, thereby improving the vacuuming efficiency of the vacuum pump 210 and reducing the energy consumption of the vacuum pump 210 and the heater 400.

[0106] By controlling the drive mechanism 300 to start and drive the vacuum cover 220 to move toward the direction close to the moisture absorption wheel 100, and by controlling the vacuum pump 210 to start, the space formed between the vacuum cover 220 and the corresponding sub-region 101 on the moisture absorption wheel 100 can be evacuated, so that the air pressure in the space is reduced, and then the evaporation temperature is reduced, achieving the effect of reducing the power consumption of the heater 400. By controlling the heater 400 to start, the environment in the vacuum cover 220 can be heated, so that the water on the moisture absorption wheel 100 evaporates, so as to achieve the effect of regenerating at least a part of the area of ​​the moisture absorption wheel 100. In addition, by driving the vacuum cover 220 to move through the drive mechanism 300, the vacuum cover 220 can be in a state close to the moisture absorption wheel 100 and a state away from the moisture absorption wheel 100, so as to flexibly select at least a part of the sub-region 101 of the moisture absorption wheel 100 to be in the regeneration stage or all the sub-regions 101 are in the adsorption state.

[0107] like Figure 6 As shown, in one embodiment of the present invention, before the step of controlling the vacuum pump 210 to start, controlling the heater 400 to start, the step of: S40: It is obtained that the vacuum cover 220 is in a state of sealingly covering the moisture absorption wheel 100.

[0108] When the vacuum cover 220 is in a state of sealing the moisture absorbing wheel 100, it can be detected by an airtight detector, or by a distance sensor, a pressure sensor, etc.

[0109] With such arrangement, the vacuum pump 210 and the heater 400 are started after the vacuum cover 220 seals and covers the moisture absorption wheel 100, thereby reducing the energy consumption of the vacuum pump 210 and the heater 400 before the vacuum cover 220 covers the moisture absorption wheel 100.

[0110] like Figure 7 As shown, in one embodiment of the present invention, a pressure sensor is provided on the side of the vacuum cover 220 facing the moisture absorption wheel 100; the step S40: obtaining that the vacuum cover 220 is in a state of sealingly covering the moisture absorption wheel 100 comprises: S41: Acquire a pressure value of the pressure sensor, compare the pressure value with a preset pressure threshold and generate a first comparison result.

[0111] Specifically, the preset pressure threshold can be set to any value greater than zero. The pressure value detected by the pressure sensor is the current pressure value between the vacuum cover 220 and the moisture absorption wheel 100. When the pressure value detected by the pressure sensor is larger, it means that the mutual holding force between the vacuum cover 220 and the moisture absorption wheel 100 is larger, and it can be determined that the vacuum cover 220 is tightly attached to the moisture absorption wheel 100. The pressure value is compared with the preset pressure threshold, and a first comparison result is generated. The first comparison result may be that the pressure value is less than the preset pressure threshold; the first comparison result may also be that the pressure value is greater than or equal to the preset pressure threshold.

[0112] S42: judging the state of the vacuum cover 220 according to the first comparison result.

[0113] According to different first comparison results, the state of the vacuum cover 220 is also different. Specifically, when the first comparison result is that the pressure value is less than the preset pressure threshold, the vacuum cover 220 does not reach the preset fit with the moisture absorption wheel 100; when the first comparison result is that the pressure value is greater than or equal to the pressure threshold, the vacuum cover 220 reaches the preset fit with the moisture absorption wheel 100.

[0114] S43: under the condition that the first comparison result is that the pressure value is not less than the preset pressure threshold, determining that the vacuum cover 220 is in a state of sealingly covering the moisture absorption wheel 100.

[0115] When the first comparison result is that the pressure value is not less than the preset pressure threshold, it means that the vacuum cover 220 and the moisture absorption wheel 100 are tightly fitted together. Therefore, it can be determined that the vacuum cover 220 is in a state of sealing the moisture absorption wheel 100, and the vacuum pump 210 can be further controlled by the state of the vacuum cover 220 to evacuate the environment inside the vacuum cover 220.

[0116] By obtaining the pressure value of the pressure sensor, comparing the pressure value with the preset pressure threshold and generating a first comparison result, the state of the vacuum cover 220 is determined according to the first comparison result. When the first comparison result is that the pressure value is not less than the preset pressure threshold, it is determined that the vacuum cover 220 is in a state of sealing the moisture absorption wheel 100, and the pressure value detected by the pressure sensor can be used to indirectly determine whether the degree of fit between the vacuum cover 220 and the moisture absorption wheel 100 meets the requirements. When the first comparison result is that the pressure value is not less than the preset pressure threshold, it means that the current mutual holding force between the vacuum cover 220 and the moisture absorption wheel 100 is large, so that the vacuum cover 220 and the moisture absorption wheel 100 are determined to be in a state of close fit, which is convenient for giving a signal to the vacuum pump 210 so that the vacuum pump 210 evacuates the environment in the vacuum cover 220. In addition, such a configuration can also adapt to the situation where the side of the vacuum cover 220 facing the moisture absorption wheel 100 is worn. Even if the side of the vacuum cover 220 facing the moisture absorption wheel 100 is worn, as long as the pressure value measured by the pressure sensor is not less than the preset pressure threshold, it can be determined that the vacuum cover 220 and the moisture absorption wheel 100 are tightly fitted, that is, the vacuum cover 220 is in a state of sealing the moisture absorption wheel 100, thereby improving the accuracy of determining the state of the vacuum cover 220.

[0117] like Figure 8 As shown, in one embodiment of the present invention, after the step of controlling the vacuum pump 210 to start and the step of controlling the heater 400 to start, the step further includes: S60: Acquire the operating time of the vacuum pump 210 and the heater 400, compare the operating time with a preset time, and generate a second comparison result.

[0118] After the vacuum pump 210 is started, it begins to evacuate the area covered by the vacuum cover 220. The longer the vacuum pump 210 runs, the lower the air pressure in the vacuum cover 220 becomes, thus becoming closer to a vacuum environment. This in turn makes the evaporation temperature of water vapor lower, making it easier to remove moisture from the sub-area 101 of the hygroscopic wheel 100 covered by the vacuum cover 220.

[0119] After the heater 400 is started, it is used to heat the environment in the vacuum cover 220. The longer the heating time is, the more moisture in the sub-area 101 of the moisture absorption wheel 100 covered by the vacuum cover 220 is converted into water vapor and discharged with the vacuum pump 210. Therefore, after the vacuum pump 210 and the heater 400 have been running for a period of time, the sub-area 101 of the moisture absorption wheel 100 covered by the vacuum cover 220 reaches a regeneration complete state.

[0120] S70: When the second comparison result is that the operation time reaches the preset time, the vacuum pump 210 and the heater 400 are controlled to be turned off, and the driving mechanism 300 is controlled to start to drive the vacuum cover 220 away from the moisture absorption wheel 100.

[0121] The preset duration refers to a set reference value for the sub-area 101 of the moisture absorption wheel 100 covered by the vacuum cover 220 to reach a state of complete regeneration. When the operation duration reaches the preset duration, it means that the vacuum pump 210 and the heater 400 have been running for a long time, and the sub-area 101 of the moisture absorption wheel 100 covered by the vacuum cover 220 has fully reached a state of complete regeneration, and at this time, there is no need to evacuate and heat the space covered by the vacuum cover 220. After the sub-area 101 covered by the vacuum cover 220 completes the regeneration state, it can continue to absorb moisture in the surrounding environment.

[0122] By obtaining the operating time of the vacuum pump 210 and the heater 400, and comparing the operating time with the preset time to generate a second comparison result, it can be determined whether the regeneration process of the sub-area 101 covered by the vacuum cover 220 has been completed. When the second comparison result is that the operating time reaches the preset time, it is determined that the time for the vacuum pump 210 and the heater 400 to start is long enough, and the sub-area 101 covered by the vacuum cover 220 has completed the regeneration process. At this time, by controlling the vacuum pump 210 and the heater 400 to turn off, the energy consumption of the vacuum pump 210 and the heater 400 can be reduced. In addition, by controlling the drive mechanism 300 to start to drive the vacuum cover 220 away from the moisture absorption wheel 100, it is convenient for the sub-area 101 that has completed the regeneration process to continue to absorb moisture in the surrounding environment in a timely manner, thereby improving the adsorption efficiency.

[0123] like Figure 8 As shown, before the step S30: controlling the driving mechanism 300 to start so as to drive the vacuum cover 220 to move toward the direction close to the moisture absorption wheel 100, the step further includes: S10: It is obtained that the moisture absorption wheel 100 is in a stopped state.

[0124] Specifically, when the hygroscopic rotary wheel 100 is driven by a rotating motor, the state of the hygroscopic rotary wheel 100 can be obtained by obtaining the current state of the rotating motor. When it is obtained that the rotating motor is in a normal working state of being turned on, it is determined that the hygroscopic rotary wheel 100 is in a rotating state; when it is obtained that the rotating motor is in a turned-off state, it is determined that the hygroscopic rotary wheel 100 is in a stopped state. When the hygroscopic rotary wheel 100 is not driven by a rotating motor, a mark portion can be set on the hygroscopic rotary wheel 100, and the hygroscopic component also includes a sensor for detecting the mark portion, and the sensor has not been able to detect the mark portion within a preset time length, then it is determined that the hygroscopic rotary wheel 100 is in a stopped state; when the mark portion can be detected within the preset time length, it is determined that the hygroscopic rotary wheel 100 is in a rotating state. It should be noted that the time length for the hygroscopic rotary wheel 100 to rotate one circle at a specified angular velocity can be used as the preset time length, or the time length greater than the time length for the hygroscopic rotary wheel 100 to rotate one circle at a specified angular velocity can be used as the preset time length, etc.

[0125] By detecting that the hygroscopic wheel 100 is in a stopped state and then driving the vacuum hood 220 to move toward the hygroscopic wheel 100, the vacuum hood 220 can stably and effectively regenerate the corresponding sub-area 101, thereby improving the regeneration efficiency of the sub-area 101.

[0126] like Figure 8 As shown, in one embodiment of the present invention, the moisture absorption component further includes a rotating motor, and the rotating motor is in transmission connection with the moisture absorption wheel 100. After the step of S70: when the second comparison result is that the operation time reaches the preset time, controlling the vacuum pump 210 and the heater 400 to turn off, and controlling the driving mechanism 300 to start to drive the vacuum cover 220 away from the moisture absorption wheel 100, the step further includes: S80: Control the rotating electrical machine to start.

[0127] By controlling the rotation motor to start, the moisture absorption wheel 100 is in a rotating state, so that the regenerated sub-area 101 can be in different positions at different times, and the moisture in the surrounding environment can be more comprehensively absorbed, thereby improving the moisture absorption efficiency.

[0128] like Figure 8 As shown, in one embodiment of the present invention, the moisture absorption component further includes a fixed bracket, the moisture absorption wheel 100 is rotatably disposed on the fixed bracket, the fixed bracket is further provided with a first sensor 500, and each of the sub-areas 101 is provided with a stopper for sensing by the first sensor 500; after the step of controlling the rotation motor to start in step S80, the following steps are further included: S90: Under the condition that the first sensor 500 senses the limiter, the moisture absorption wheel 100 is controlled to stop rotating.

[0129] The first sensor 500 is a sensor for sensing the rotation position or angle of the moisture absorption wheel 100. The first sensor 500 may be a mechanical sensor, a magnetic sensor, or a photoelectric sensor.

[0130] The limiting member refers to a component provided in each sub-region 101 and used for sensing by the first sensor 500. For example, in one example, the first sensor 500 is a mechanical sensor, such as a micro switch, and the limiting member can be a limiting member such as a limiting rod or a limiting plate provided on each sub-region 101. During the rotation of the moisture absorption wheel 100, each time the limiting member of a sub-region 101 touches the micro switch, the micro switch receives a signal that the moisture absorption wheel 100 is rotated to a certain position, and then the micro switch can transmit a signal and control the rotating motor to be in a shutdown state, thereby controlling the driving mechanism 300 to drive the vacuum cover 220 to move in a direction close to the moisture absorption wheel 100 to seal the area corresponding to the moisture absorption wheel 100, and then subsequently the vacuum pump 210 evacuates the gas in the vacuum cover 220 and heats the environment in the vacuum cover 220 through the heater 400, so as to automatically achieve the effect of regenerating the area covered by the vacuum cover 220. In another example, the first sensor 500 can also be a photoelectric sensor, and the limiting member provided in each sub-area 101 can be a limiting rod. When the hygroscopic wheel 100 rotates, when the limiting rod of one of the sub-areas 101 passes through the photoelectric sensor, the photoelectric sensor senses that the limiting rod has passed, which means that a sub-area 101 has been replaced and is arranged opposite to the vacuum cover 220. At this time, the signal can be transmitted to the rotating motor through the photoelectric sensor to control the rotating motor to be in a shutdown state, and then the driving mechanism 300 is controlled to drive the vacuum cover 220 to move in a direction close to the hygroscopic wheel 100 to seal the area corresponding to the hygroscopic wheel 100. In another example, the first sensor 500 is a magnetic induction probe, and the limiting piece provided in each sub-area 101 is a magnet. When the magnet of one of the sub-areas 101 is rotated to correspond to the magnetic induction probe, the magnetic induction probe receives the induced magnet, which means that a sub-area 101 is replaced and is arranged relative to the vacuum cover 220. At this time, the signal can be transmitted to the rotating motor through the magnetic induction probe to control the rotating motor to be in a shutdown state, and then the driving mechanism 300 is controlled to drive the vacuum cover 220 to move in a direction close to the hygroscopic wheel 100 to seal the area corresponding to the hygroscopic wheel 100.

[0131] By controlling the rotation of the hygroscopic wheel 100, the limiting member of each sub-region 101 will be sensed by the first sensor 500 on the fixed bracket in sequence during the rotation of the hygroscopic wheel 100. By controlling the hygroscopic wheel 100 to stop rotating when the first sensor 500 senses the limiting member, the hygroscopic wheel 100 is stopped after rotating a certain angle. When it is obtained that the hygroscopic wheel 100 is in the stopped state, the driving mechanism 300 is further controlled to drive the vacuum cover 220 to move toward the direction close to the hygroscopic wheel 100, and the vacuum pump 210 and the heater 400 are started to evacuate and heat the current sub-region 101 on the hygroscopic wheel 100 that is arranged opposite to the vacuum cover 220, so that the sub-region 101 is subjected to the effect of the regeneration process. The moisture absorption wheel 100 rotates and stops, stops and rotates again and again, so that each sub-area 101 can be regenerated, so that the moisture absorption wheel 100 can continuously absorb moisture in the surrounding environment, thereby improving the moisture absorption efficiency.

[0132] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A moisture absorbing component, characterized in that: include: A moisture absorption wheel, wherein the moisture absorption wheel is provided with at least two sub-areas; A vacuum device, the vacuum device comprising a vacuum pump and a vacuum cover, the vacuum cover is connected to the vacuum pump and is arranged opposite to at least one of the sub-regions of the moisture absorption wheel; A driving mechanism, wherein the driving mechanism is connected to the vacuum cover in a transmission manner and drives the vacuum cover to move toward the direction close to the moisture absorption wheel; or the driving mechanism drives the vacuum cover to move toward the direction away from the moisture absorption wheel; and A heater is provided in the vacuum cover.

2. The absorbent assembly according to claim 1, wherein: The desiccant assembly further comprises a rotating motor, which is in transmission connection with the desiccant wheel to drive the desiccant wheel to rotate; and the driving mechanism is electrically connected with the rotating motor.

3. The absorbent assembly according to claim 2, wherein: The vacuum device also includes: a first connecting pipe, one end of which is connected to the vacuum pump and the other end of which is connected to the vacuum cover; and A second connecting pipe, one end of which is connected to the vacuum cover, and the other end of which is connected to the outside.

4. The absorbent assembly according to claim 3, wherein: At least a portion of the first connecting pipe is a bellows; And / or, the first connecting pipe is provided with a first control valve, and the second connecting pipe is provided with a second control valve.

5. The absorbent assembly of claim 2, wherein: The desiccant assembly also includes a fixed bracket, the desiccant wheel is rotatably arranged on the fixed bracket, a first sensor is also arranged on the fixed bracket, and each of the sub-areas is provided with a limiter for sensing by the first sensor; the first sensor is electrically connected to the rotating motor.

6. The absorbent assembly according to any one of claims 1 to 5, wherein: A sealing gasket is installed on the side of the vacuum cover facing the moisture absorption wheel, and when the vacuum cover is sealingly covering the moisture absorption wheel, the sealing gasket is sandwiched between the vacuum cover and the moisture absorption wheel; And / or, a second sensor is installed on a side of the vacuum cover facing the moisture absorption wheel, and the driving mechanism and the vacuum pump are both electrically connected to the second sensor; And / or, the moisture absorption component further comprises a support frame, and the driving mechanism is arranged on the support frame; And / or, the driving mechanism comprises a plurality of pneumatic valves, and the plurality of pneumatic valves are arranged at intervals along the circumference of the vacuum cover; And / or, the vacuum cover comprises a first half cover and a second half cover, an opening of the first half cover and an opening of the second half cover are arranged opposite to each other, and the first half cover and the second half cover are respectively arranged on two opposite sides of the moisture absorption wheel.

7. A dehumidification device, characterized in that: Comprising the absorbent assembly according to any one of claims 1 to 6.

8. A dehumidification control method based on the moisture absorbing assembly according to any one of claims 1 to 6, characterized in that: The dehumidification control method comprises: Controlling the driving mechanism to start, so as to drive the vacuum cover to move toward the direction close to the moisture absorption wheel; The vacuum pump is controlled to start, and the heater is controlled to start.

9. The dehumidification control method according to claim 8, characterized in that: Before the steps of controlling the vacuum pump to start and the heater to start, the steps further include: It is obtained that the vacuum cover is in a state of sealingly covering the moisture absorption wheel.

10. The dehumidification control method according to claim 9, characterized in that: A pressure sensor is provided on a side of the vacuum cover facing the moisture absorption wheel; the step of obtaining that the vacuum cover is in a state of sealing the moisture absorption wheel comprises: Acquire a pressure value of the pressure sensor, compare the pressure value with a preset pressure threshold and generate a first comparison result; determining the state of the vacuum cover according to the first comparison result; Under the condition that the first comparison result is that the pressure value is not less than the preset pressure threshold, it is determined that the vacuum cover is in a state of sealingly covering the moisture absorption wheel.

11. The dehumidification control method according to claim 8, characterized in that: After the steps of controlling the vacuum pump to start and the heater to start, the following steps are further included: Obtaining the operating time of the vacuum pump and the heater, comparing the operating time with a preset time, and generating a second comparison result; If the second comparison result is that the running time reaches the preset time, the vacuum pump and the heater are controlled to be turned off, and the driving mechanism is controlled to start to drive the vacuum cover away from the moisture absorption wheel.

12. The dehumidification control method according to claim 11, characterized in that: Before the step of controlling the driving mechanism to start so as to drive the vacuum cover to move toward the direction close to the moisture absorption wheel, the step further includes: It is obtained that the moisture absorption wheel is in a state of stopping rotation.

13. The dehumidification control method according to claim 12, characterized in that: The moisture absorption component further includes a rotating motor, which is in driving connection with the moisture absorption rotary wheel; after the step of controlling the vacuum pump and the heater to be turned off and controlling the driving mechanism to start to drive the vacuum cover away from the moisture absorption rotary wheel under the condition that the second comparison result is that the running time reaches the preset time, the step further includes: The rotating electric machine is controlled to start.

14. The dehumidification control method according to claim 13, characterized in that: The moisture absorption component further includes a fixed bracket, the moisture absorption wheel is rotatably arranged on the fixed bracket, a first sensor is further arranged on the fixed bracket, and each of the sub-areas is provided with a limiter for sensing by the first sensor; after the step of controlling the rotation motor to start, the step further includes: Under the condition that the first sensor senses the limiter, the moisture absorption wheel is controlled to stop rotating.

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