Patent Publication Number: US-2022214108-A1

Title: Dehumidification Tray for Cleaning Apparatus and Cleaning Apparatus

Description:
CROSS REFERENCE OF RELATED APPLICATIONS 
     This application claims priority of Chinese Patent Application No. 202120015588.3, titled “Dehumidification Tray for Cleaning Apparatus and Cleaning Apparatus,” filed Jan. 5, 2021, in the China National Intellectual Property Administration, the entire contents of which are hereby incorporated by reference in their entireties. 
     TECHNICAL FILED 
     The present disclosure relates to cleaning apparatus technology, specifically, to a dehumidifying tray for cleaning apparatus and a cleaning apparatus. 
     BACKGROUND 
     Wet cleaning apparatus is a common household cleaning apparatus that cleans the floor by spraying water onto the floor or a rolling brush and then cleaning the floor by the rolling brush and then sucking the sewage into the cleaning apparatus. A wet cleaning apparatus comprises a floor brush mechanism (e.g., a floor brush head), a clean water tank, a sewage tank and a sewage suction fan. The sewage suction fan drives the sewage to flow into the sewage tank. After the cleaning apparatus completes the cleaning work, it is usually placed in a static way to make the rolling brush of the floor brush mechanism dry naturally. If the rolling brush fails to get dry quickly, it may be stink and cause odor in the home environment. How to make the rolling brush dry quickly and avoid the brush from getting sticky during rest is one of the technical optimization essentials of the cleaning apparatus. In view of this, this present disclosure is hereby proposed. 
     SUMMARY 
     The technical problem to be solved by the present disclosure is how to quickly dry the rolling brush of the cleaning apparatus, so as to prevent the rolling brush from getting sticky during rest. 
     In order to achieve the above purpose, a dehumidifying tray for cleaning apparatus is provided. The cleaning apparatus comprises a cleaning head, a suction device and a sewage suction channel. The cleaning head comprises a rolling brush chamber and a brush that is built into the brush chamber. The brush chamber is located at an upstream position of the sewage suction channel. The suction device is located at a downstream position of the sewage suction channel and is configured to generate negative pressure in the sewage suction channel. The dehumidifying tray comprises: a tray body and a dehumidifying device. The tray body has a receiving groove formed by a recessed portion. The receiving groove is adapted to the cleaning head for placing a cleaning apparatus in a non-working state. The receiving groove is adapted for placing a cleaning apparatus in a non-working state. The dehumidifying device is disposed on the tray body and is capable of introducing air into the brush chamber to dry the rolling brush when the cleaning apparatus is placed on the tray body. The dehumidifying device comprises a dehumidifying duct and a dehumidifying fan. The dehumidifying duct is in fluid communication with the brush chamber when the cleaning apparatus is placed on the tray body. The air is driven by the dehumidifying fan from the dehumidifying duct into the brush chamber. 
     The disclosure further provides a cleaning apparatus. The cleaning apparatus comprises a cleaning head, a suction device and a sewage suction channel. The cleaning head comprises a brush chamber and a brush built into the brush chamber. The brush chamber being located at an upstream position of the sewage suction channel, the suction device being located at a downstream position of the sewage suction channel and configured to generate negative pressure in the sewage suction channel. The cleaning apparatus is adapted for being placed on the dehumidifying tray as discussed. 
     As a result of the above technical solutions, the present disclosure has the following beneficial effects: when the dehumidifying tray of the present disclosure is supporting the cleaning apparatus, the dehumidifying fan can drive the air to flow into the sewage suction channel, so as to dehumidify the rolling brush, which benefits the quick dry of the rolling brush and prevents it from sticky during rest. The air flowing into the sewage suction channel can also dehumidify the filter located at an outlet end of the sewage suction channel. When the dehumidifying fan drives the air to flow out through the outlet of the dehumidifying duct, it also simultaneously drives the water vapor in the water collection tank to disperse. 
     In order to solve the problem of the large working noise existing in the prior art sewage suction fan, the disclosure can also have the following improvements. 
     The present disclosure further provides a suction device, which may comprise a fan housing. The fan housing having a moisture discharge duct and a cooling duct. The air outlet section of the moisture discharge duct comprises a first air section for direct flow of air to the outlet of the moisture discharge duct, and a second air section for guiding the wind deviating from the first air section to return back to the first air section. The second air section is arc-shaped. 
     Preferably, the fan housing comprises an inner housing assembly and an outer housing assembly. The outer housing assembly comprising an inner cavity for accommodating the inner housing assembly. The inlet section of the moisture discharge duct is located at the inner housing assembly, and the outlet section of the moisture discharge duct is located at the housing assembly. A transition air section is located between the inner housing assembly and outer housing assembly and connects the inlet section and outlet section of the moisture discharge duct. 
     Preferably, the fan housing comprises an inner housing assembly and an outer housing assembly, the outer housing assembly having an inner cavity for accommodating the inner housing assembly. The inlet section of the cooling duct is located at the outer housing assembly and the outlet section of the cooling duct is located at the inner housing assembly. 
     Preferably, the air outlet section of the cooling duct is connected to the air inlet section of the moisture discharge duct. 
     Preferably, the inner housing assembly comprises a first inner housing and a second inner housing. The first inner housing has a first cavity for accommodating a dehumidifying fan and a second cavity for accommodating a cooling fan. The first cavity is on the lower side of the second cavity. The second inner housing is attached to the lower side of the first inner housing, and the end of the air outlet section of the cooling duct is located between the outer wall of the first inner housing and the inner wall of the second inner housing. 
     Preferably, the housing assembly comprises a first outer housing, a second housing and a housing cover. The first outer housing is mounted on the upper side of the second outer housing and a cavity is formed therebetween to accommodate the inner housing assembly. The housing cover is mounted on the upper side of the first housing and an air outlet section of the moisture discharge duct is formed therebetween. 
     The disclosure further provides a cleaning apparatus, which comprises a sewage tank and a sewage suction device for driving the sewage to flow into the sewage tank. The sewage suction device is a sewage suction device as described in any of the preceding items. 
     By adopting the above technical solutions, the air outlet section of the moisture discharge duct of the suction device comprises not only the first air section from which the air flows to the moisture discharge outlet, but also a second air section that guides the air to deviate from the first air section to return back to the first air section, and the second air section is arc-shaped. The arc-shaped second air section enables the air to flow back in the second air section, which helps to reduce the noise generated by the impact on the wall of the duct, thereby reducing the overall noise of the fan during its operation. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In order to illustrate the technical solutions of the embodiments of the present disclosure more clearly, the drawings of the embodiments will be briefly described as below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, and are not to limit the present disclosure. 
         FIG. 1  illustrates a schematic diagram of a cleaning apparatus according to one embodiment of the present disclosure; 
         FIG. 2  and  FIG. 3  illustrates an exploded view of the cleaning apparatus according to one embodiment of the present disclosure; 
         FIG. 3  illustrates an exploded view of the cleaning apparatus according to one embodiment of the present disclosure from a different perspective; 
         FIG. 4  illustrates a cross-sectional view of a cleaning apparatus according to one embodiment of the present disclosure; 
         FIG. 5  illustrates a cross-sectional view of the cleaning apparatus according to one embodiment of the present disclosure; 
         FIG. 6  illustrates an exploded view corresponding to  FIG. 5 . 
         FIG. 7  illustrates an exploded view of the cleaning apparatus according to one embodiment of the present disclosure; 
         FIG. 8  illustrates an exploded view of the cleaning apparatus according to one embodiment of the present disclosure from a different perspective; 
         FIG. 9  illustrates a schematic diagram of a clean water tank; 
         FIG. 10  illustrates a schematic diagram of a sewage tank; 
         FIG. 11  illustrates an exploded view of the sewage tank; 
         FIG. 12  illustrates a sectional view of the sewage tank; 
         FIG. 13  illustrates a schematic diagram of the cleaning head in different views; 
         FIG. 14  illustrates a first exploded view of the cleaning head; 
         FIG. 15  illustrates a second exploded view of the cleaning head; 
         FIG. 16  illustrates a cross-sectional view of the cleaning head; 
         FIG. 17  illustrates a schematic view of the brush roll cover; 
         FIG. 18  illustrates a schematic diagram of the dehumidifying tray; 
         FIG. 19  illustrates an exploded view of the dehumidifying tray; 
         FIG. 20  illustrates a schematic diagram of a cleaning head according to another embodiment of the present disclosure; 
         FIG. 21  illustrates a diagram of the attachment process of a scraper and the connecting member; 
         FIG. 22  illustrates a schematic diagram of a suction device; 
         FIG. 23  illustrates a first exploded view of the suction device; 
         FIG. 24  illustrates a sectional view of the suction device; 
         FIG. 25  illustrates a second exploded view corresponding to  FIG. 24 ; 
         FIG. 26  illustrates a schematic diagram of a first housing; 
         FIG. 27  illustrates a cross-sectional view of a cleaning head according to another embodiment; 
         FIG. 28  illustrates an exploded view of a dehumidifying tray according to another embodiment; 
         FIG. 29  illustrates an exploded view of a dehumidifying tray according to another embodiment. 
     
    
    
     The accompanying drawings are marked as below: 
     cleaning apparatus  1 , dehumidifying tray  2 , body  3 , clean water tank  4 , sewage tank  5 , suction device  6 , filter  7 , cleaning head  8 , battery mechanism  9 , handle assembly  10 . 
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the present disclosure will be described in further detail below in conjunction with the accompanying drawings. The components according to the embodiments of the present disclosure generally described and illustrated in the accompanying drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without making creative labor shall fall within the scope of protection of the present disclosure. 
     Hereinafter, some embodiments of the present disclosure are described in detail with reference to the accompanying drawings. The features in the embodiments described below can be combined with each other in a non-conflicting manner. 
     Combined with  FIG. 1  to  FIG. 4 , in one embodiment, the cleaning apparatus of the present disclosure comprises a cleaning apparatus  1  and a dehumidifying tray  2 . The cleaning apparatus  1  can be separated from the dehumidifying tray  2  as a whole. When the cleaning apparatus  1  is supported on the dehumidifying tray  2 , the dehumidifying tray  2  can dehumidify the cleaning apparatus  1  on the one hand, and can also charge the cleaning apparatus  1  on the other hand. 
     [Cleaning apparatus] With reference to  FIG. 5  to  FIG. 8 , the cleaning apparatus  1  comprises a body  3 , a clean water tank  4 , a sewage tank  5 , a suction device  6 , a filter  7 , a cleaning head  8 , a battery mechanism  9 , and a handle assembly  10 . 
     The body  3  comprises a first housing  3 A, a second housing  3 B and a third housing  3 B. The clean water tank  4  is mounted on the first housing  3 A. The sewage tank  5  and the filter  7  are mounted on the second housing  3 B. The suction device  6  is mounted between the second housing  3 B and the third housing  3 B. The cleaning head  8  is mounted on the lower side of the first housing  3 A. The battery mechanism  9  is mounted on the first housing  3 A. The handle assembly  10  being mounted on the first housing  3 A. A water conduit T 1  is mounted on the first housing  3 A. 
     [Clean water tank] With reference to  FIG. 9 , the clean water tank  4  has a water outlet end T 2  that fits with the water conduit T 1 , and the clean water tank  4  can be detachably mounted on the first housing  3 A as a whole. 
     [Sewage tank] With reference to  FIG. 10  to  FIG. 12 , the sewage tank  5  comprises a water storage assembly  5 A, a cover assembly  5 B and a buoy member  5 C. The inner cavity of the second water storage assembly  5 A has a sewage entry channel for sewage to enter. The cover assembly  5 B is detachably mounted on the water storage assembly  5 A. The water storage assembly  5 A has a filter holder for mounting the filter  7 , and a buoy holder for mounting the buoy member  5 C. The buoy member  5 C is mounted on the buoy holder and is capable of slide up and down along the buoy holder. The buoy member  5 C rising as the sewage level in the water storage assembly  5 A rises. 
     [Suction device] The suction device  6  is located downstream of the sewage suction channel L and is configured to generate negative pressure in the suction channel. Specifically, the suction device  6  is mounted between the second housing  3 B and the third housing  3 B. The suction device  6  is connected to the filter  7 . The suction device  6  can be disassembled by removing the third housing  3 B. With reference to  FIG. 22  to  FIG. 26 , the suction device  6  is a suction fan, which comprises a suction fan housing. The suction fan housing has a moisture discharge duct Q 1  and a cooling duct Q 2 . Specifically, the suction fan housing comprises an inner housing assembly  6 A and an outer housing assembly  6 B, with the outer housing assembly  6 B having an inner cavity for accommodating the inner housing assembly  6 A. The inlet section Q 11  of the moisture discharge duct Q 1  is located in the inner housing assembly  6 A, the outlet section Q 12  of the moisture discharge duct Q 1  is located in the housing assembly  6 B, the transition air section Q 13  is located between the inner housing assembly  6 A and the housing assembly  6 B and communicates with the inlet section Q 11  and the outlet section Q 12  of the moisture discharge duct Q 1  (as shown in  FIG. 23 , the first inner housing  6 C has an aperture  6 C 1  for moisture to pass through), the outlet section Q 12  comprises the first air section Q 121  that provides the air to direct flows to the moisture discharge air outlet  6 E 2 , and the second air section Q 122  that guides the air deviating from the first air section Q 121  to flow back to the first air section Q 121 , the second air section Q 122  is arc-shaped, and the arc-shaped second air section enables the air to flow back in the second air section, which helps reduce the noise generated by the impact of the duct wall, thereby reducing the overall noise when the dehumidifier fan during operation. The inlet section Q 21  of the cooling duct Q 2  is located in the outer housing assembly  6 B, and the outlet section Q 22  of the cooling duct Q 2  is located in the inner housing assembly  6 A, and the outlet section Q 22  of the cooling duct Q 2  is connected to the inlet section Q 11  of the moisture discharge duct Q 1 . The inner housing assembly  6 A comprises a first inner housing  6 C and a second inner housing  6 D, and the first inner housing  6 C has a first cavity P 1  in which a dehumidifying fan (not shown) is mounted and a second cavity P 2  in which a cooling fan is installed (not shown), the first cavity P 1  is located on the lower side of the second cavity P 2 , the second inner housing  6 D is snapped to the lower side of the first inner housing  6 C, and the end of the outlet section Q 22  of the cooling duct Q 2  is located between the outer wall of the first inner housing  6 C and the inner wall of the second inner housing  6 D (as shown in  FIG. 23 , the outer wall of the first inner housing  6 C has a recessed section  6 C 2 ). The housing assembly  6 B comprises a first outer housing  6 E, a second outer housing  6 F and an outer housing cover  6 G. The first housing  6 E has a moisture inlet  6 E 1 , a moisture discharge vent  6 E 2  and an arc-shaped air guiding surface, which is opposite to the second air section Q 122 . The first outer housing  6 E is mounted on the upper side of the second outer housing  6 F and a cavity is formed therebetween to accommodate the inner housing assembly  6 A, the outer housing cover  6 G is mounted on the upper side of the first outer housing  6 E and the outlet section Q 12  of the moisture discharge duct Q 1  is formed therebetween. A gasket  6 H is provided between the outer housing cover  6 G and the first outer housing  6 E, and a gasket  61  is provided between the first inner housing  6 C and the first outer housing  6 E. 
     [Filter] The filter  7  is located at the upstream position of the suction device  6  along the sewage suction channel L. The filter  7  is mounted on the filter holder of the water storage assembly  5 A and the outlet of the sewage suction channel L. The filter  7  is located at the front side of the inlet of the suction device  6  to prevent sewage from entering the suction device  6 . The filter  7  may be a HEPA assembly. When the cleaning apparatus  1  is placed on the tray body  2 , the dehumidifying duct N 1  and the filter  7  are in fluid communication, and air flows from the rolling brush chamber through the sewage suction channel to the filter  7  to dry the filter  7 , as further described later in connection with the specific structure of the tray body  2 . 
     [Cleaning head] With reference to  FIG. 13  to  FIG. 17 , the cleaning head  8  comprises a floor brush bottom cover  8 A, a floor brush top cover  8 B, a rolling brush cover  8 C, a sewage conduit  8 D, a spraying member  8 E, a water pump  8 F, a scraper  8 G, a rolling brush  8 H, a drive assembly  8 I, rollers  8 J, a connecting member  8 K, a flow guide  8 L, a flow blocking member  8 M, and auxiliary wheels  8 N. The floor brush bottom cover  8 A, the floor brush top cover  8 B, and the rolling brush cover  8 C fit together to form the floor brush housing. The floor brush top cover  8 B is mounted on the floor brush bottom cover  8 A, and the rolling brush cover  8 C is detachably mounted on the floor brush top cover  8 B. The sewage conduit  8 D is connected to the sewage inlet channel of the sewage tank  5 , the water inlet of the spraying member  8 E is connected to the water outlet of the water pump  8 F, and the water inlet of the water pump  8 F is connected to the water conduit T 1  through a pipeline (not shown), and the floor brush housing has a rolling brush chamber for the brush  8 H, and the rolling brush chamber is located upstream of the sewage suction channel L, and the rolling brush  8 H is mounted on the floor brush bottom cover  8 A, and the drive assembly  8 I drives the rolling brush  8 H to roll, and a pair of rollers  8 J are mounted on the rear side of the floor brush bottom cover  8 A. The scraper  8 G is usually made of soft rubber material, and the scraper  8 G has a fixed portion  8 G 1  which is secured to the floor brush bottom cover  8 A, as well as a liquid scraping portion  8 G 2  which is capable of contacting the ground, the fixed portion  8 G 1  is secured to the lower side of the floor brush bottom cover  8 A through the connecting member  8 K, auxiliary wheels  8 N are installed between the connecting member  8 K and the floor brush bottom cover  8 A, a gap is provided between the liquid scraping portion  8 G 2  and the rolling brush  8 H for the sewage to enter the sewage suction channel L, a sewage over-hole K is provided on the close part of the floor brush bottom cover  8 A that is near the upper side of the liquid scraping portion  8 G 2  where the sewage over-hole K is to provide for the sewage to move upward into the sewage suction channel L. In this embodiment, the close part of the floor brush bottom cover  8 A that is near the upper side of the liquid scraping portion  8 G 2  is comb-shaped, and the sewage over-hole K can prevent the sewage from accumulating at the angle between the scraper and the floor brush bottom cover. The flow guide  8 L is set on the lower side of the rolling brush cover  8 C and is suspended on the upper side of the rolling brush  8 H. The flow guide  8 L has a flow guide surface G on which the spray water is spread and guided to the brush  8 H, and the spray port of the spraying member  8 E faces the flow guide surface G. In this embodiment, the spray port of the spraying member  8 E is tilted upward, so that the spray water is sprayed to the upper side of the flow guide surface G obliquely. The flow blocking member  8 M is also set on the lower side of the rolling brush cover  8 C, and the flow blocking member  8 M is set on both sides of the flow guide surface G of the flow guide member  8 L, so as to limit the expansion range of the spray water in the length direction of the rolling brush  8 H. Combined with  FIGS. 20 to 21 , in the cleaning head according to another embodiment, the rear side of the scraping section  8 G 2  is provided with a plurality of support portions  80  that cause the bottom end of the scraping section  8 G 2  to overhang when the scraping section  8 G 2  is moved backward, and the plurality of support portions  80  are provided at intervals along the length direction of the scraper  8 G, and there are sewage-passing gap between adjacent support portions  80 , the support portions  80  are strip-shaped, and when the cleaning head is moved backward, the support portions  80  cause the bottom end of the scraping section overhang, and the contact surface between the bottom end of the scraping section  8 G 2  and the ground is small, and the sewage-passing gaps are provided between adjacent support portions  80  so as to prevent sewage from being driven by the scraper, thus helping to reduce the generation of stains. 
     [Battery mechanism] The battery mechanism  9  is configured to supply power to the cleaning apparatus. The battery mechanism  9  may be a rechargeable lithium battery. 
     [Handle assembly] The handle assembly  10  is mounted on the first housing  3 A. The handle assembly  10  comprises a control button to control the operation of the cleaning apparatus  1 . 
     [Dehumidifying tray] With reference to  FIG. 18  and  FIG. 19 , the dehumidifying tray  2  comprises a first tray housing  2 A, a second tray housing  2 B, a dehumidifying fan  2 C, a charging valve  2 D, a charging module  2 E, and a seal  2 F. The first tray housing  2 A and the second tray housing  2 B fit together to form the tray body, and the first tray housing  2 A and the second tray housing  2 B have a dehumidifying duct N 1  and a mounting cavity N 2 , and they are in communication with each other. With reference to  FIG. 18 , the first tray housing  2 A is the main housing of the dehumidifying tray, where the upper side of its bottom wall has a receiving groove formed by the recessed portion, and the lower side of its bottom wall is integrally formed with a duct baffle  2 A 1  for defining the area of the dehumidifying duct N 1 , the dehumidifying fan  2 C is located in the area that is enclosed by the duct baffle  2 A 1 , the receiving groove is adapted to the cleaning head to be adapted for placing the cleaning apparatus  1  in a non-working state, a plurality of through-holes are formed in the bottom wall of the first tray housing  2 A, the plurality of through-holes being adapted for directing air flow to the rolling brush  8 H, the plurality of through-holes serving as the outlet S 1  of the dehumidifying duct N 1 , the receiving groove being connected to the dehumidifying duct via the through-holes, the upper side of the first tray housing  2 A having a water collection tank M 1  for holding the sewage remaining in the rolling brush  8 H when supporting the cleaning apparatus  1  (i.e., the position of the water collection tank M 1  is adapted to the position of the rolling brush  8 H), and the roller support portion M 2 , the water collection tank M 1  is formed by a further recess from the bottom of the receiving groove. The second tray housing  2 B is a duct member that fits with the first tray housing  2 A (main housing) to form a dehumidifying duct N 1 , the second tray housing  2 B is secured to the lower side of the bottom wall of the first tray housing  2 A and the pre-set gap between the bottom wall is formed as a dehumidifying duct Ni, specifically, the lower side of the first tray housing  2 A has a plurality of studs, and the second tray housing  2 B has matching screw holes. The second tray housing  2 B is connected to the first tray housing  2 A by screws, and thus being secured to the duct baffle  2 A 1 . The dehumidifying duct N 1  has a gradually enlarged front portion to allow air to flow evenly to the rolling brush  8 H within the length range of the rolling brush  2 C, with the front portion extending forward away from the dehumidifying fan  2 C. The air outlet S 1  of the dehumidifying duct N 1  is located at the front side of the water collection tank M 1  (as in  FIG. 18 , in this embodiment, the air outlet S 1  is configured at the wall of the water collection tank M 1 , and the air outlet S 1  can also be adjusted to be configured at the transition between the wall of the water collection tank M 1  and the bottom of the receiving groove), and there are a plurality of air outlets S 1 , and the plurality of air outlets S 1  are arranged at intervals along the direction corresponding to the length direction of the rolling brush  8 H. A sealing member  2 F is provided on the peripheral side of the water collection tank M 1 , and when the cleaning apparatus  1  is placed on the dehumidifying tray, the sealing member  2 F is configured between the water collection tank M 1  and the rolling brush chamber as a seal to prevent the air that is configured to dry the rolling brush from leaking. The dehumidifying fan  2 C is mounted in the dehumidifying duct N 1  (the two cooperate to form a dehumidifying device so as to drive air into the rolling brush chamber when the cleaning apparatus is placed on the tray body) and the charging module  2 E is mounted in the mounting cavity N 2 . The outlet of the dehumidifying fan  2 C is fluidly communicated with the dehumidifying duct (N 1 ) so that the dehumidifying fan  2 C drives air through the rolling brush chamber into the sewage suction channel L to dehumidify the rolling brush  8 H and the filter  7  (when the cleaning apparatus is placed on the tray body, the dehumidifying duct N 1  is fluidly communicated with the rolling brush chamber), the dehumidifying fan  2 C drives the air to flow through the air outlet S 1  of the dehumidifying air duct N 1  and in the meanwhile disperse moisture from the water collection tank M 1  and cool down the charging module  2 E. With reference to  FIG. 27 , in other embodiments, in order to work with the dehumidifying fan  2 C, the cleaning head  8  also has a humidity sensor  8 P, where the humidity sensor  8 P is configured in the sewage suction channel L which is located at the downstream position of the rolling brush  8 H. The dehumidifying tray can control the operating state of the dehumidifying fan based on the detected information by the humidity sensor  8 P, and only when the cleaning apparatus is placed on the tray body of the dehumidifying tray, the humidity sensor  8 P detects the humidity of the air flowing through the rolling brush  8 H for generating a control signal to control the start/stop of the dehumidifying fan  2 C. When the humidity sensor  8 P detects that the air humidity is less than the preset value, the dehumidifying fan  2 C is controlled to turn off, and when the humidity sensor  8 P detects that the air humidity is greater than the preset value, the dehumidifying fan  2 C can be controlled to self-start. When the cleaning apparatus  1  is placed on the dehumidifying tray  1 , the rolling brush  8 H can be controlled to rotate so that its different areas are opposite to the air outlet S 1  of the dehumidifying duct N 1 , and the speed of the rolling brush  8 H at this time can be much lower than the speed of normal operation, for example, it can rotate one revolution every minute. With reference to  FIG. 28 , in another embodiment, the dehumidifying duct N 1  of the dehumidifying tray  2  is configured with a heating device  2 G, which heats the air to improve the drying efficiency of the brush, the heating device can be for example PTC heating, and it can be provided with another temperature control device (such as a fuse or a temperature detector) to be used in conjunction with the heating device  2 G, in order to control the heating temperature of the heating device  2 G. With reference to  FIG. 29 , in yet another embodiment, the tray body of the cleaning head  8  is configured with a negative ion generator  2 H for sterilization and deodorization, and the negative ion output port of the negative ion generator  2 H is connected to the dehumidifying duct N 1 . 
     The above mentioned is only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited to it. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical field disclosed by the present disclosure shall be covered by the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope of protection of the claims.