Cleaning device and air conditioner indoor unit

Abstract

The application provides a cleaning device which can be used for cleaning the upper surface of a high cleaning object, and the cleaning device comprises a dust collecting component, a cleaning component, a fixing component, a driving component, an acoustic sensor and a controller, the controller is configured to: when the cleaning component starts to work, the acoustic sensor is turned on, the driving component drives the cleaning component to a first area, the dust in the first area enters the shell through a dust suction port and hits the acoustic sensor, an electric signal output by the acoustic sensor is detected and judged, when the electric signal is less than a preset threshold, the driving component drives the cleaning component to a next area, and the cleaning is performed on all areas. The cleaning device can be used for cleaning the filter screen of an indoor air conditioner, cleaning the deposited pollutants on the filter screen, reducing the wind resistance and power consumption caused by the pollutants, effectively cleaning the top filter screen of the indoor air conditioner, and solving the user pain point of difficult filter screen cleaning.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cleaning, and particularly relates to a cleaning device. BACKGROUND

[0002] At present, most air conditioner hanging machines have no filter screen self-cleaning function, the filter screen filtering level is higher and higher, and the mesh number is smaller and smaller, so more and more dust, hair and other pollutants filtered outside the filter screen during air conditioner operation will deposit into a layer of visible dust layer, which not only affects the cleanliness of air conditioner air outlet, but also increases the air resistance of the air conditioner, causing unnecessary power consumption.

[0003] And the air conditioner hanging machine is generally more than 1.8 meters away from the ground, so the user cannot reach it, in addition, the filter screen self-cleaning function of some foreign high-end products has the disadvantages of incomplete cleaning, poor reliability and easy secondary pollution.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] The present application aims at the above technical problems and proposes a cleaning device.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0007] The cleaning device is used for cleaning the upper surface of the to-be-cleaned object within a set height range, the upper surface is provided with at least one region, and the cleaning device comprises:

[0008] The dust collecting part comprises a shell;

[0009] The cleaning part comprises a dust suction port facing the upper surface, and the dust suction port is in communication with the shell;

[0010] The fixing part is connected with the dust collecting part at one end and is placed on the side of the to-be-cleaned object away from the dust collecting part through self-stretching at the other end;

[0011] The driving part is connected with the cleaning part and drives the cleaning part to move along the upper surface;

[0012] The sound-sensitive sensor is located in the shell and is located away from the dust suction port;

[0013] The controller is configured to:

[0014] When the cleaning part starts to work, the sound-sensitive sensor is started, the driving part drives the cleaning part to the first region, the dust in the first region enters the shell through the dust suction port and hits the sound-sensitive sensor, the electric signal output by the sound-sensitive sensor is detected and judged, when the electric signal is less than a preset threshold value, the driving part drives the cleaning part to the next region, until all the regions are cleaned.

[0015] As an implementable manner, the driving component comprises a driving member and a movement track, the driving member is connected with the cleaning component, and the movement track is arranged along the stretching direction of the fixed component; the driving member drives the cleaning component to move along the movement track;

[0016] The controller is configured to drive the driving member to drive the cleaning component to move a set distance in the first direction, then drive the driving member to drive the cleaning component to move a set distance in the second direction, and repeat the above actions until the electrical signal is less than the preset threshold or the number of repeated actions meets the set number of times.

[0017] As an implementable manner, a handle is further included, the lower part of the handle is provided with a wireless charging receiving end, the wireless charging receiving end is connected with the controller, a wireless charging sending end is arranged below the wireless charging receiving end, and the controller is configured to, when detecting an electrical signal of starting cleaning and the power of the cleaning device does not meet the set working power, first start the wireless charging receiving end to charge the cleaning device, and start cleaning after the power reaches the set working power.

[0018] As an implementable manner, the fixed component comprises:

[0019] A support, one end of the support is connected with the dust collecting component;

[0020] A clamping plate, the upper part of the clamping plate is sleeved on the support and can move along the support;

[0021] A telescopic part, the telescopic part is arranged opposite to the support, one end of the telescopic part is connected with the dust collecting component, the other end of the telescopic part is connected with the clamping plate, and the telescopic part extends or retracts relative to the support along with the movement of the clamping plate;

[0022] The controller is configured to stop cleaning when the cleaning distance of the cleaning component reaches a preset distance after the clamping plate is fixed on the side of the to-be-cleaned object away from the dust collecting component.

[0023] As an implementable manner, the movement track is arranged as a rack, the driving member comprises:

[0024] A rotating shaft, the rotating shaft is arranged at the dust suction port;

[0025] A gear, the gear is sleeved on the rotating shaft and is in meshing connection with the rack;

[0026] A driving motor, the driving motor is connected with one end of the rotating shaft, and drives the rotating shaft to rotate, thereby driving the gear to move along the rack.

[0027] As an implementable manner, the cleaning component comprises:

[0028] A telescopic air duct, the telescopic air duct is in communication with the shell and the dust suction port;

[0029] The dust collection cover is connected with the telescopic air duct, and the dust collection cover is provided with a dust collection port in a direction close to the upper surface.

[0030] The brush is sleeved on the rotating shaft, and the driving motor drives the brush to rotate through the rotating shaft.

[0031] As an implementable mode, the dust collecting component further comprises:

[0032] The fan is arranged in the shell;

[0033] The air outlet is arranged on the side of the shell away from the dust collection port;

[0034] The fan motor is connected with the fan;

[0035] The filter screen is arranged at the air outlet and is used for preventing dust from entering the room again;

[0036] The controller is configured to drive the fan to rotate by the fan motor and form a negative pressure in the shell during the cleaning of the cleaning component, and the dust is sucked into the shell under the action of the brush.

[0037] As an implementable mode, the shell further comprises:

[0038] The dust collecting box is arranged on the side of the fan away from the dust collection port, and the inside of the dust collecting box is provided with a sound-sensitive sensor.

[0039] The application further provides an indoor air conditioner, which comprises a shell, wherein the top of the shell is provided with an indoor air inlet, and the indoor air inlet is provided with an air conditioner filter screen;

[0040] The cleaning device is arranged near the air conditioner filter screen and is used for cleaning dust on the air conditioner filter screen.

[0041] As an implementable mode, the air conditioner indoor unit further comprises an evaporator and a fan arranged in the shell, when the cleaning device finishes cleaning the air conditioner filter screen, the air conditioner indoor unit starts refrigeration, the fan rotates at a first rotating speed, and after working for a period of time, the air conditioner indoor unit starts a heating mode. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the cleaning device in the application;

[0043] Figure 2 Fig. 2 is a schematic diagram of the local structure of the cleaning device in the application;

[0044] Figure 3 Fig. 3 is a schematic diagram of another view of the local structure of the cleaning device in the application; Figure 1 Fig. 4 is an enlarged view of the A position in Fig. 3;

[0045] Figure 4 Fig. 5 is a schematic diagram of another view of the local structure of the cleaning device in the application;

[0046] Figure 5 The air flow direction of the cleaning device in the application is shown in the schematic diagram.

[0047] Figure 6 The overall structure of the air conditioner indoor unit is shown in the schematic diagram.

[0048] Figure 7 The structure of the air conditioner indoor unit with the cleaning device in the application is shown in the schematic diagram.

[0049] Figure 8 The structure of the wardrobe with the cleaning device in the application is shown in the schematic diagram.

[0050] Figure 9 The working process of the cleaning device in the application Figure 1 ;

[0051] Figure 10 The working process of the cleaning device in the application Figure 2 ;

[0052] In the above figures:

[0053] Cleaning device 1; dust collecting part 11; cleaning part 12; fixing part 13; driving part 14;

[0054] Acoustic sensor 15; movement track 141; handle 16; rotating shaft 142; gear 143; rack 145;

[0055] Driving motor 144; telescopic air duct 121; dust suction shield 122; brush 123; dust suction port 124;

[0056] Fan 111; fan motor 112; air outlet 113; filter screen 114; dust collecting box 115;

[0057] Support 131; clamping plate 132; telescopic part 133; spring 1331; switch button 117;

[0058] Electric control box 118; air duct 119; baffle 120; air conditioner indoor unit 2; casing 21;

[0059] Indoor air inlet 22; air conditioner filter screen 23. DETAILED DESCRIPTION

[0060] The application will be further described in conjunction with specific embodiments to enable those skilled in the art to better understand the application and implement it, but the scope of the application claimed is not limited to the range described in the specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0061] It should be noted that the terms "first", "second", etc. in the present application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features.

[0062] In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the scope of protection required by the present application.

[0063] The cleaning device 1 provided in the embodiment is used to clean the upper surface of the to-be-cleaned object within a certain height range, generally, the upper surface of the to-be-cleaned object above 1.8 meters can be cleaned, and the cleaning device 1 can be used to clean the air conditioner filter screen 23 at the air inlet above the air conditioner indoor unit 2 or the upper surface of the high cabinet which is inconvenient to clean.

[0064] In the embodiment, the upper surface is divided into at least one area, referring to Figure 1The cleaning device 1 comprises a dust collecting part 11, a cleaning part 12, a fixing part 13, a driving part 14, a sound-sensitive sensor 15 and a controller, wherein the dust collecting part 11 comprises a shell, and the dust collecting part 11 is used for collecting cleaned dust; the cleaning part 12 comprises a suction port 124 facing the upper surface to be cleaned, and the suction port 124 is in communication with the shell; the fixing part 13 is used for fixing the cleaning device 1 on the object to be cleaned, specifically, one end of the fixing part 13 is connected with the dust collecting part 11, and the other end of the fixing part 13 is placed on the side of the object to be cleaned away from the dust collecting part 11 through stretching of the fixing part 13, and the fixing part 13 and the dust collecting part 11 are clamped on both sides of the object to be cleaned; the driving part 14 is connected with the cleaning part 12, and simultaneously the driving part 14 drives the cleaning part 12 to move along the upper surface; the sound-sensitive sensor 15 is located inside the shell and at a position away from the suction port 124, and the controller is configured to start the sound-sensitive sensor 15 when the cleaning part 12 starts to work, and the driving part 14 drives the cleaning part 12 to a first area, the dust in the first area enters the shell through the suction port 124 and hits the sound-sensitive sensor 15, the electric signal output by the sound-sensitive sensor 15 is detected and judged, and when the electric signal is less than a preset threshold value, it indicates that the dust content sucked at this time is small, and the cleaning work in this area is completed, the driving part 14 drives the cleaning part 12 to the next area until all areas are cleaned. Specifically, the shell comprises an air inlet and an air outlet 113, the air inlet of the shell is in communication with the cleaning part 12, the dust enters the cleaning part 12 through the suction port 124 and then enters the shell through the air inlet, and the sound-sensitive sensor 15 is located at a position away from the air inlet. Specifically, the sound-sensitive sensor 15 can be a piezoelectric sound-sensitive sensor 15, which can convert a pressure signal into an electric signal. The controller can be a main control board.

[0065] It should be noted that the division of the area of the upper surface of the object to be cleaned can be divided according to the actual length, and the preset threshold value represents the final cleaning effect, which can be improved by appropriately reducing the size of the preset threshold value.

[0066] Of course, it should be known that the driving part 14 can drive the cleaning part 12 to move along the length direction of the upper surface, and it can be conceived that when the cleaning width of the cleaning part 12 is smaller than the width of the upper surface, the driving part 14 can drive the cleaning part 12 to move along the width direction of the upper surface to realize automatic cleaning of the upper surface.

[0067] Through the above arrangement, the problem that the number of meshes is smaller and more and more dust, hair and other pollutants are wrapped on the air conditioner filter 23 during the operation of the air conditioner indoor unit 2 due to the higher and higher filtering level of the filter screen 114 of the air conditioner indoor unit 2 can be better solved, the cleanliness of the air outlet of the air conditioner indoor unit 2 is improved, and the air resistance of the air conditioner is reduced, and unnecessary power consumption is reduced.

[0068] In some embodiments of the present application, with reference to Figure 2 The driving component 14 includes a driving member and a movement track 141, the driving member is connected with the cleaning component 12, and the movement track 141 is arranged along the stretching direction of the fixed component 13. The driving member drives the cleaning component 12 to move along the movement track 141, so that the cleaning component 12 realizes the cleaning work in the range of the movement track 141.

[0069] The controller is configured to drive the driving member to drive the cleaning component 12 to move a set distance in the first direction when the electric signal is greater than the preset threshold value, and then drive the driving member to drive the cleaning component 12 to move a set distance in the second direction. Repeat the above action until the electric signal is less than the preset threshold value or the number of repeated actions meets the set number of times.

[0070] Through the above arrangement, the whole cleaning process can be orderly and efficiently carried out. By comparing the electric signal detected by the sound-sensitive sensor 15 with the set preset threshold value, the cleaning effect is effectively guaranteed. At the same time, the number of repeated actions of the cleaning component 12 is taken into account, which can prevent the whole cleaning process from taking too long and can protect the working life of the cleaning device 1.

[0071] In some embodiments of the present application, with reference to Figure 3 The movement track 141 is arranged as a rack 145, the driving member includes a rotating shaft 142, a gear 143 and a driving motor 144, the rotating shaft 142 is arranged near the dust suction port 124, the gear 143 is sleeved on the rotating shaft 142, the gear 143 is connected with the rack 145 in meshing, the driving motor 144 is connected with one end of the rotating shaft 142, the driving motor 144 drives the rotating shaft 142 to rotate, thereby driving the gear 143 to move along the rack 145, thereby driving the cleaning component 12 to move along the rack 145 to realize the cleaning process of different areas. Specifically, during the cleaning process, the driving motor 144 drives the gear 143 to move along the rack 145 to drive the rotating shaft 142 to drive in the corresponding arrangement direction.

[0072] In some embodiments of the present application, with reference to Figures 4-5The cleaning part 12 comprises a telescopic air duct 121, a dust suction shroud 122 and a brush 123. The telescopic air duct 121 is in communication with the shell and a dust suction port 124. One end of the telescopic air duct 121 is connected with the shell, and the other end of the telescopic air duct 121 can move according to the driving part 14 to realize the lengthening and retraction of the telescopic air duct 121. The dust suction shroud 122 is connected with the telescopic air duct 121. The dust suction shroud 122 is provided with the dust suction port 124 in the direction close to the upper surface. The brush 123 is sleeved on the rotating shaft 142. The driving motor 144 can drive the brush 123 to rotate through the rotating shaft 142. The brush 123 rotates to assist the dust in the cleaning area into the shell. Specifically, the brush 123 is a drum brush 123. The drum brush 123 is sleeved on the rotating shaft 142. The drum brush 123 can rotate with the rotating shaft 142 to clean the air conditioner filter screen 23. Specifically, the telescopic air duct 121 is provided as a pipe with wrinkles. The wrinkles can change according to the stretching or retraction of the telescopic air duct.

[0073] In some embodiments of the present application, with reference to Figure 1 The cleaning device 1 further comprises a handle 16. A lower part of the handle 16 is provided with a wireless charging receiving end (not shown in the figure). The wireless charging receiving end is connected with the controller to control the opening and closing of the charging of the wireless charging receiving end. A wireless charging transmitting end is provided below the wireless charging receiving end. The wireless power supply is realized by providing the wireless charging receiving end and the wireless charging transmitting end, which reduces the limitation of the wire harness on the cleaning height.

[0074] The controller is configured to, when a signal of starting cleaning is detected and the power of the cleaning device 1 does not meet the set working power, first start the wireless charging receiving end to charge the cleaning device 1, and then start cleaning after the power reaches the set working power.

[0075] The wireless charging utilizes the principle of electromagnetic induction to make the cleaning device 1 free from the restriction of the wire, and the cleaning device 1 and the to-be-cleaned object are independent of each other.

[0076] Taking the air conditioner indoor unit 2 as the to-be-cleaned object, a wireless charging device is designed on the top of the side of the main control board of the air conditioner indoor unit. The cleaning device 1 is located directly above the wireless charging device during the non-working time. The wireless charging device starts to charge the cleaning device 1 each time the cleaning device 1 finishes cleaning the filter screen 114 and returns to the position above the wireless charging device.

[0077] Of course, the cleaning device 1 can adopt various charging forms such as magnetic attraction type charging and wired charging.

[0078] Specifically, with reference to Figure 1The handle 16 is provided with a switch button 117 connected with the controller, and the user can start cleaning by touching the switch button 117. Before starting the cleaning work, the controller detects the power of the cleaning device 1. When the power of the cleaning device 1 is sufficient for the set working power, the cleaning work is started normally. When the power of the cleaning device 1 does not meet the set working power, the charging is started first, and then the cleaning work is started after the charging reaches the set working power.

[0079] In some embodiments of the present application, a cavity is arranged inside or beside the handle 16, and a battery is installed in the cavity for supplying the cleaning work of the cleaning device 1.

[0080] In some embodiments of the present application, a baffle 120 is arranged above the fan 111 at the air inlet position of the dust collecting part 11 to assist the flight trajectory of the dust.

[0081] In some embodiments of the present application, an electric control box 118 is further arranged in the dust collecting part 11, and a controller can be installed in the electric control box 118 to control the working process of the cleaning device 1.

[0082] In some embodiments of the present application, referring to Figure 2 , the fixing part 13 includes a support 131, a clamping plate 132 and an extension part 133. The support 131 is arranged horizontally on the upper surface of the object to be cleaned to assist the movement of the cleaning part 12. One end of the support 131 is connected with the dust collecting part 11. The upper part of the clamping plate 132 is sleeved on the support 131 and can move along the support 131. The extension part 133 is arranged opposite to the support 131. One end of the extension part 133 is connected with the dust collecting part 11, and the other end of the extension part 133 is connected with the clamping plate 132. The extension part 133 extends or retracts relative to the support 131 following the movement of the clamping plate 132. The controller pre-stores the length of the upper surface of the object to be cleaned, i.e. the preset distance of the cleaning part. Specifically, after the cleaning device 1 is installed on the surface of the object to be cleaned, the dust collecting part 11 is located on one side of the cleaning part 12, and the clamping plate 132 of the fixing part 13 is located on the other side of the cleaning part 12, so as to realize the stable movement of the cleaning part 12 during the cleaning process and prevent the cleaning effect from being affected by the unstable overall structure.

[0083] The controller is configured to receive the distance signal output by the distance sensor after the clamping plate 132 is fixed on the object to be cleaned away from the dust collecting part 11, and obtain the corresponding distance length according to the distance signal. When the cleaning distance of the cleaning part 12 reaches the preset distance set according to the distance signal, the cleaning is stopped.

[0084] In some embodiments of the present application, the fixing component 13 can also be provided to include a bracket 131, a clamping plate 132, an extension part 133 and a distance sensor (not shown in the figure), wherein the bracket 131 is transversely arranged on the upper surface of the object to be cleaned, for assisting the movement of the cleaning component 12, one end of the bracket 131 is connected to the dust collecting component 11, the upper part of the clamping plate 132 is sleeved on the bracket 131 and can move along the bracket 131, the extension part 133 is arranged opposite to the bracket 131, one end of the extension part 133 is connected to the dust collecting component 11, the other end of the extension part 133 is connected to the clamping plate 132, the extension part 133 expands or retracts following the movement of the clamping plate 132 relative to the bracket 131, and the distance sensor is arranged on the side of the clamping plate 132 close to the dust collecting component 11, for detecting the length between the clamping plate 132 and the dust collecting component 11, and obtaining the length of the upper surface of the object to be cleaned accordingly. Specifically, after the cleaning device 1 is installed on the surface of the object to be cleaned, the dust collecting component 11 is located on one side of the cleaning component 12, and the clamping plate 132 of the fixing component 13 is located on the other side of the cleaning component 12, so as to realize the stable movement of the cleaning component 12 during the cleaning process, and prevent the cleaning effect from being affected due to the unstable overall structure.

[0085] Specifically, referring to Figure 2 , the extension part 133 includes a telescopic rod and a spring 1331 sleeved on the telescopic rod, one side of the telescopic rod is connected below the clamping plate 132, the other side of the telescopic rod is connected to the dust collecting component 11, the telescopic rod includes an inner telescopic rod and an outer telescopic rod, one end of the spring 1331 is connected to the inner telescopic rod, the other end of the spring 1331 is connected to the outer telescopic rod, when the clamping plate 132 moves away from the dust collecting component 11, the extension part 133 is stretched, the inner telescopic rod and the outer telescopic rod are displaced, the spring 1331 is stretched following the movement of the inner telescopic rod and the outer telescopic rod, and the spring 1331 applies a spring 1331 force to the inside, so that the clamping plate 132 can be stably installed on the upper surface of the object to be cleaned.

[0086] Of course, the distance sensor can also not be provided, and the cleaning process of the present application can also be realized by storing the length of the upper surface of the object to be cleaned or the length of the area to be cleaned in the memory of the controller.

[0087] In some embodiments of the present application, referring to Figures 4-5The dust collecting component 11 further comprises a fan 111, an air outlet 113, a fan motor 112 and a filter screen 114. The fan 111 is arranged inside the shell, the air outlet 113 is arranged on the side of the shell away from the dust suction port 124, the fan motor 112 is connected with the fan 111 and used to drive the fan 111 to rotate, and the filter screen 114 is arranged at the air outlet 113 and used to prevent dust from entering the room again and causing secondary pollution. The controller is configured to drive the fan motor 112 to drive the fan 111 to rotate and form a negative pressure inside the shell during the cleaning process of the cleaning component 12, and the dust is sucked into the shell under the action of the brush 123. Specifically, the fan 111 is a vortex fan, the filter screen 114 is a HEPA filter screen, an air duct 119 is formed inside the shell, the fan motor 112 is arranged on the side of the inner wall of the shell close to the cleaning component 12, the driving end of the fan motor 112 is connected with the fan 111, the air outlet 113 is arranged at the position corresponding to the fan 111, the air outlet 113 is provided with the HEPA filter screen, the dust entering the shell is prevented from entering the room and causing secondary pollution to the indoor environment, the vortex fan 111 is driven by the fan motor 112 to rotate during the cleaning process, the telescopic air duct 121 is sucked to a negative pressure, the dust is sucked into the air duct 119 under the action of the brush 123, and the separated dirt in the air duct 119 is blown into the dust collecting box 115.

[0088] In some embodiments of the present application, the inside of the shell further comprises a dust collecting box 115, the dust collecting box 115 is arranged on the side of the fan 111 away from the dust suction port 124, so as to facilitate the collection of dust, and the inside of the dust collecting box 115 is provided with a sound-sensitive sensor 15 for detecting the content of dust. Specifically, the dust collecting box 115 is arranged at the lower part of the shell and close to the position of the handle 16, and the dust is collected by the negative pressure of the fan 111 and the auxiliary gravity. At the same time, the sound-sensitive sensor 15 is arranged inside the dust collecting box 115, so as to prevent the arrangement of the sound-sensitive sensor 15 at other positions, which will cause inaccurate detection data and poor cleaning effect.

[0089] In some embodiments of the present application, a dust collecting box filter screen is arranged below the dust collecting box 115, and a sound-sensitive sensor 15 is arranged above the dust collecting box filter screen.

[0090] In some embodiments of the present application, the sound-sensitive sensor 15 can also be arranged downstream of the air flow of the fan 111, so as to detect the dust concentration inside the shell and determine whether the cleaning is completed.

[0091] The air conditioner provided in the embodiment performs a refrigeration and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration and heating cycle includes a compression process, a condensation process, an expansion process and an evaporation process, and provides cold or heat to an indoor space through the heat absorption and release processes of a refrigerant, so as to realize the temperature adjustment of the indoor space.

[0092] The compressor compresses the refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed high-temperature and high-pressure gaseous refrigerant into liquid refrigerant, and heat is released to the surroundings through the condensation process.

[0093] The liquid refrigerant flowing from the condenser enters the expansion valve, which expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into low-pressure liquid refrigerant. The low-pressure liquid refrigerant flowing from the expansion valve enters the evaporator, and the liquid refrigerant absorbs heat and evaporates into low-temperature and low-pressure refrigerant gas as it flows through the evaporator, and the refrigerant gas in a low-temperature and low-pressure state is returned to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using the latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0094] The outdoor unit of the air conditioner refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the air conditioner includes the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0095] The indoor heat exchanger and the outdoor heat exchanger can be used as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0096] Referring to Figures 6-7 The air conditioner indoor unit 2 in the present application includes a cabinet 21, a plurality of components constituting a refrigeration cycle are installed in the cabinet 21, and the cabinet 21 includes a back plate and a cover installed on the back plate, the cover includes a bottom surface defining a bottom structure, side plates arranged on both sides of the bottom surface, a front surface arranged on the front side, and a top surface defining a top appearance.

[0097] The cabinet 21 plays a role of overall support, and the cabinet 21 is provided with at least an indoor air inlet 22, the indoor air inlet 22 is arranged on the top surface, and the indoor air inlet 22 is provided with an air conditioner filter screen 23.

[0098] In order to ensure the cleanliness of the air conditioner filter screen 23, a cleaning device 1 is arranged near the air conditioner filter screen 23, and the cleaning device 1 is used to clean the dust on the air conditioner filter screen 23.

[0099] In some embodiments of the present application, the air conditioner indoor unit 2 further includes an evaporator and a fan inside the cabinet 21, after the cleaning device 1 finishes cleaning the air conditioner filter screen 23, the air conditioner indoor unit 2 starts refrigeration, the fan rotates at a first rotating speed, and after a period of time, the air conditioner indoor unit 2 starts a heating mode.

[0100] Through the above setting, by opening the cooling mode of the air conditioner indoor unit 2, the evaporator condensation frost can be peeled off the dirt, and then by opening the heating mode, the evaporator can be quickly defrosted by using the water flow to quickly remove the dirt. The purpose of doing this is to peel off and flush away the dust falling on the evaporator to the outdoor side, and then use 57℃ high temperature drying to prevent mold growth of the air conditioner.

[0101] Referring to Figure 9 , the following is an example of cleaning the air conditioner filter screen 23 of the air conditioner indoor unit 2 by the cleaning device 1.

[0102] The user places the filter screen 114 cleaning device 1 in the appropriate position and presses the cleaning key switch on the handle 16;

[0103] When the cleaning device 1 cleans the air conditioner filter screen 114, the fan motor 112 drives the vortex fan 111 to rotate to draw the air duct 119 to negative pressure, the dust is sucked to the telescopic air duct 121 under the action of the drum brush 123, and the dirt separated from the spiral air duct 119 is blown into the dust collection box 115, and hits the piezoelectric acoustic sensor 15, which converts the pressure signal into an electric signal and sends it to the main control board. The main control board determines whether the electric signal F is greater than the critical value F0. If F is greater than F0, reciprocating cleaning is performed. The action instruction of reciprocating cleaning is that the driving motor 144 is reversed for N steps, and then it is transmitted for N steps, that is, the cleaning device 1 reciprocates, and if the electric signal F transmitted by the piezoelectric acoustic sensor 15 to the main control board is still greater than the critical value F0 after the cleaning device 1 completes one reciprocating motion, the cleaning device 1 continues to reciprocate and clean until the electric signal F transmitted by the piezoelectric acoustic sensor 15 to the main control board is less than or equal to the critical value F0; if the electric signal F is still greater than the critical value F0 after the cleaning device 1 reciprocates L times, the reciprocating cleaning is exited, the cleaning device 1 enters the next area cleaning, and the cleaning distance is determined whether it is greater than or equal to the set cleaning length H. If the set cleaning length H is reached, the cleaning device 1 exits the cleaning mode and returns to the initial position, and if it is less than the set cleaning length H, it continues to clean until the filter screen 114 is completely cleaned.

[0104] Referring to Figure 10 , the following is an example of cleaning the air conditioner filter screen 23 of the air conditioner indoor unit 2 by the cleaning device 1.

[0105] The user places the filter screen 114 cleaning device 1 in the appropriate position and presses the cleaning key switch on the handle 16;

[0106] Firstly, the power of the cleaning device 1 is detected before cleaning, if the power is greater than 50% of the total capacity of the battery (or any power), the cleaning is completed and charging, if the detected power is less than 50% of the total capacity of the battery, the atmosphere light on the switch is turned on to prompt charging, and after charging to greater than or equal to 50%, the filter screen 114 is cleaned again;

[0107] When the cleaning device 1 cleans the air conditioner filter screen 114, the fan motor 112 drives the vortex fan 111 to rotate to draw the air duct 119 to negative pressure, the dust is sucked to the telescopic air duct 121 under the action of the drum brush 123, and the dirt separated from the spiral air duct 119 is blown into the dust collection box 115, and hits the piezoelectric sound sensor 15, the piezoelectric sound sensor 15 converts the pressure signal into an electric signal and transmits it to the main control board, the main control board judges whether the electric signal F is greater than the critical value F0, if F is greater than F0, the reciprocating cleaning is carried out, the action instruction of the reciprocating cleaning is that the driving motor 144 is reversed for N steps, and then the positive transmission is carried out for N steps, that is, the reciprocating movement of the cleaning device 1 is realized, if the electric signal F transmitted by the piezoelectric sound sensor 15 to the main control board is still greater than the critical value F0 after the cleaning device 1 completes a reciprocating movement, the cleaning device 1 continues to reciprocate and clean until the electric signal F transmitted by the piezoelectric sound sensor 15 to the main control board is less than or equal to the critical value F0; if the electric signal F is still greater than the critical value F0 after the cleaning device 1 reciprocates L times, the reciprocating cleaning is exited, the cleaning device 1 enters the next area cleaning, and whether the cleaning distance is greater than or equal to the set cleaning length H is judged, if the set cleaning length H is reached, the cleaning device 1 exits the cleaning mode and returns to the initial position, if it is less than the set cleaning length H, the cleaning continues until the filter screen 114 is completely cleaned.

[0108] When the user uses the filter screen 114 self-cleaning device to clean the air conditioner filter screen 114, the user needs to press the air conditioner evaporator self-cleaning key (if there is no self-cleaning function, run the refrigeration low wind for half an hour) to condense frost on the indoor unit evaporator, then through the rapid defrosting, the dirt is quickly removed by the water flow; the purpose of this step is to strip and flush the dust falling from the cleaned filter screen 114 on the evaporator to the outdoor side, and then high-temperature drying at 57℃ is carried out to prevent mold growth of the air conditioner.

[0109] The present application uses the cleaning and dust collection principle to clean the dirt on the filter screen 114, improves the cleanliness of the air outlet of the air conditioner and the long-term operation of the air conditioner, and compared with the air conditioner with only cleaning function, the cleaning performance is improved, the handle 16 of the cleaning device 1 is designed to be lengthened, which can provide enough space for the battery and make the cleaning device 1 easily reach the height of the air conditioner.

[0110] Reference Figure 8The cleaning device 1 provided in the application can be used to clean dust above a wardrobe. The cleaning device 1 is installed above the wardrobe, then the telescopic part 133 is stretched, the clamping plate 132 is installed above the wardrobe, and the cleaning device 1 is started to clean the upper part of the wardrobe.

[0111] Compared with the related art, the application has the advantages and positive effects that:

[0112] The application provides a cleaning device 1 which can be used to clean the upper surface of an object to be cleaned at a high place. The cleaning device 1 comprises a dust collecting part 11, a cleaning part 12, a fixing part 13, a driving part 14, an acoustic sensor 15 and a controller. The cleaning part 12 is in communication with the dust collecting part 11, and the side of the cleaning part 12 facing the upper surface is provided with a dust suction port 124. One end of the fixing part 13 is connected with the dust collecting part 11, and the other end of the fixing part 13 is connected with the side of the object to be cleaned away from the dust collecting part 11 by stretching itself, so as to realize stable installation of the cleaning device 1. The driving part 14 is connected with the cleaning part 12 and drives the cleaning part 12 to move along the upper surface, so as to clean the upper surface. The controller is configured to: when the cleaning part 12 starts to work, the acoustic sensor 15 is started, the driving part 14 drives the cleaning part 12 to a first area, the dust in the first area enters the shell through the dust suction port 124 and hits the acoustic sensor 15, and the electric signal output by the acoustic sensor 15 is detected and judged. When the electric signal is less than a preset threshold value, the driving part 14 drives the cleaning part 12 to a next area, until the whole area is cleaned. The cleaning device 1 can be used to clean the air conditioner filter screen 23 of an indoor air conditioner, clean the pollutants deposited on the air conditioner filter screen 23, reduce the wind resistance and power consumption caused by the pollutants, effectively clean the top air conditioner filter screen 23 of the indoor air conditioner 2, and solve the user's pain point of difficult cleaning of the air conditioner filter screen 23.

[0113] In the application, Newton's first law is used. The dust is made to fall off by rubbing the filter screen 114 with the brush 123. Then, according to Bernoulli's principle, the dust falling off from the filter screen 114 at the dust suction port 124 is sucked into the dust collecting box 115 through the air duct 119 by the negative pressure generated by the rotation of the vortex fan 111. The application can effectively clean the filter screen 114 of the indoor air conditioner 2 and solve the user's pain point of difficult cleaning of the indoor air conditioner.

[0114] The above is only a preferred embodiment of the application, and does not limit the application in other forms. Any person skilled in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields. However, any simple modification, equivalent change and modification made on the basis of the technical essence of the application to the above embodiments still belongs to the protection scope of the technical solution of the application.

Claims

1. Cleaning device, characterized in that The cleaning device is used for cleaning the upper surface of an object to be cleaned within a set height range, and the upper surface is provided with at least one area, and the cleaning device comprises: a dust collecting component comprising a housing; a cleaning component comprising a suction port facing the upper surface, the suction port being in communication with the housing; a fixing component, one end of which is connected to the dust collecting component, and the other end of which is placed on the side of the object to be cleaned away from the dust collecting component through self-stretching; the fixing component comprises: a support, one end of which is connected to the dust collecting component; a clamping plate, the upper part of which is sleeved on the support and can move along the support; a telescopic part, one end of which is connected to the dust collecting component, and the other end of which is connected to the clamping plate, the telescopic part extending or retracting along with the movement of the clamping plate relative to the support; a driving component connected to the cleaning component and driving the cleaning component to move along the upper surface; a sound-sensitive sensor located in the housing and away from the suction port; a controller configured to: when the cleaning component starts to work, the sound-sensitive sensor is turned on, the driving component drives the cleaning component to the first area, the dust in the first area enters the housing through the suction port and hits the sound-sensitive sensor, the electrical signal output by the sound-sensitive sensor is detected and judged, when the electrical signal is less than a preset threshold, the driving component drives the cleaning component to the next area, until all areas are cleaned; after the clamping plate is fixed on the side of the object to be cleaned away from the dust collecting component, when the cleaning distance of the cleaning component reaches a preset distance, the cleaning is stopped.

2. The cleaning device of claim 1, wherein, the driving component comprises a driving member and a movement track, the driving member is connected to the cleaning component, and the movement track is arranged along the stretching direction of the fixing component, the driving member drives the cleaning component to move along the movement track; the controller is configured to, when the electrical signal is greater than the preset threshold, the driving member drives the cleaning component to move in a first direction by a set distance, then the driving member drives the cleaning component to move in a second direction by a set distance, and the above operation is repeated until the electrical signal is less than the preset threshold or the number of repeated operations meets a set number of times.

3. The cleaning device of claim 1, wherein, a handle is further included, the lower part of the handle is provided with a wireless charging receiving end, the wireless charging receiving end is connected to the controller, a wireless charging sending end is arranged below the wireless charging receiving end corresponding to the wireless charging receiving end, and the controller is configured to, when the electrical signal for starting cleaning is detected and the power of the cleaning device does not meet a set working power, first start the wireless charging receiving end to charge the cleaning device, and after the power reaches the set working power, the cleaning is started.

4. The cleaning device of claim 2, wherein, the movement track is arranged as a rack, and the driving member comprises: a rotating shaft arranged on the suction port; a gear sleeved on the rotating shaft, the gear being in meshing connection with the rack; a driving motor connected to one end of the rotating shaft, the driving motor driving the rotating shaft to rotate, thereby driving the gear to move along the rack.

5. The cleaning device of claim 4, wherein, the cleaning component comprises: A telescopic air duct, which is in communication with the shell and the dust suction port; A dust suction shield, which is connected with the telescopic air duct, and is arranged near the dust suction port in the direction of the upper surface; A brush, which is sleeved on the rotating shaft, and is driven to rotate by the driving motor through the rotating shaft.

6. The cleaning device of claim 5, wherein, The dust collecting component further comprises: A fan, which is arranged inside the shell; An air outlet, which is arranged on the side of the shell away from the dust suction port; A fan motor, which is connected with the fan; A filter screen, which is arranged at the air outlet, and is used to prevent dust from entering the room again; The controller is configured to drive the fan to rotate by the fan motor and form a negative pressure inside the shell during the cleaning process of the cleaning component, and dust is sucked into the shell under the action of the brush.

7. The cleaning device of claim 6, wherein, The shell further comprises a dust collecting box, which is arranged on the side of the fan away from the dust suction port, and the inside of the dust collecting box is provided with the sound-sensitive sensor.

8. An air conditioner indoor unit characterized by comprising: The air conditioner further comprises: A shell, the top of which is provided with an indoor air inlet, and the indoor air inlet is provided with an air conditioner filter screen; The cleaning device of claims 1-7, which is arranged near the filter screen and is used to clean dust on the air conditioner filter screen. 9.The indoor unit of the air conditioner according to claim 8, characterized in that, The air conditioner indoor unit further comprises an evaporator and a fan arranged in the shell, when the cleaning device finishes cleaning the air conditioner filter screen, the air conditioner indoor unit starts to cool, and the fan rotates at a first rotating speed, and after working for a period of time, the air conditioner indoor unit starts to heat.

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