WO2019015610A1

WO2019015610A1 - Wall-mounted air conditioner and cleaning control method therefor

Info

Publication number: WO2019015610A1
Application number: PCT/CN2018/096142
Authority: WO
Inventors: 马峰; 孙远成; 于尊才; 王彦生; 曾福祥; 姜全超; 徐军瑞
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-07-20
Filing date: 2018-07-18
Publication date: 2019-01-24
Also published as: CN107525127B; CN107525127A

Abstract

A wall-mounted air conditioner and a cleaning control method therefor. An indoor unit (10) of the wall-mounted air conditioner comprises: a shell (100), an air inlet (110) being provided at the upper side of the shell (100) and an evaporator (200) being provided inside the shell (100); a filtering screen (800), provided at the air inlet (110); a water tank (400), provided at the lower portion of the shell (100) and configured to collect condensate water on the surface of the evaporator (200); a cleaning gutter (500), provided below the water tank (400) and configured to controllably introduce the condensate water from the water tank (400); a rolling brush (600), provided in the cleaning gutter (500); and at least one driving device, configured to controllably drive the filtering screen (800) to carry out a reciprocating motion between the air inlet (110) and the cleaning gutter (500) so that the rolling brush (600) can rotatably dry-brush the filtering screen (800); after the condensate water is introduced into the cleaning gutter (500), the rolling brush (600) is rotated to wet-brush the filtering screen (800). The wall-mounted air conditioner and the cleaning control method therefor are highly automated and clean effectively.

Description

Wall-mounted air conditioner and cleaning control method thereof

Technical field

The invention relates to the technical field of air conditioners, and in particular to a wall-mounted air conditioner and a cleaning control method thereof.

Background technique

The filter at the air inlet of the air conditioner is used to filter the air entering the air conditioner to improve the indoor air quality. After long-term use, a lot of dust and dirt will adhere to the surface of the filter, causing clogging of the mesh, resulting in poor ventilation. If it cannot be cleaned in time, the amount of circulating air passing through the heat exchanger will be reduced, which will affect the cooling and heating effect, and the air conditioning capacity will be greatly reduced. And increase energy consumption. At the same time, part of the dust on the filter net may still enter the room again with the circulating wind, which may affect the indoor air quality. As a result, the air blown out from the air inlet of the air conditioner has an odor, and needs to be cleaned in time. The existing air conditioner cannot be automatically cleaned, and the user needs to manually disassemble and clean it. The cleaning process generally needs to open the cover body, disassemble the filter net, and after the cleaning is completed, It needs to be installed, the operation is complicated and time-consuming and laborious, which brings a lot of inconvenience to the user.

Summary of the invention

The object of the present invention is to provide a wall-mounted air conditioner and a cleaning control method thereof, which can automatically clean the filter net.

A further object of the invention is to improve the cleaning effect of the filter.

In one aspect, the present invention provides a wall-mounted air conditioner including an indoor unit, the indoor unit comprising:

a housing having an air inlet at an upper side and an evaporator disposed therein;

Filter, set at the air inlet;

a water collecting tank disposed at a lower portion of the casing and configured to collect condensed water on the surface of the evaporator;

a cleaning tank, below the water collecting tank, configured to controlably introduce condensed water from the water collecting tank;

Roller brush, set in the cleaning tank;

At least one driving device configured to controlably drive the filter to reciprocate between the air inlet and the cleaning slot to allow the roller brush to dryly brush the filter, and after the cleaning tank introduces condensed water, the roller brush Turn to wash the filter.

Optionally, each of the drive means includes a closed drive belt extending from the air inlet to the cleaning slot, which is fixedly coupled to the filter to drive the filter to move, and a motor for driving the belt to move.

Optionally, each driving device further comprises: a plurality of rotatable supporting rollers for supporting the driving belt, and the guiding belt extends in a direction extending from the air inlet to the rear side wall of the housing, and then along the rear of the housing The side wall extends downward to the cleaning groove and then extends forward and upward from the cleaning groove.

Optionally, each driving device further includes: two guide rails disposed in parallel, extending in parallel with the driving belt; a plurality of supporting members fixed on the filtering net, each of the two ends of each supporting member having a roller to abut against the guiding rail Up to guide the direction of movement of the belt and filter.

Optionally, the number of driving devices is two, and the driving belts of the two driving devices are respectively fixedly connected at lateral ends of the filter net.

Optionally, a nozzle is disposed on the water collecting tank for spraying the condensed water in the water collecting tank to the cleaning tank.

In another aspect, the present invention provides a cleaning control method for a wall-mounted air conditioner for cleaning a filter net of the wall-mounted air conditioner according to any of the above, the cleaning control method comprising the steps of:

Dry brush filter step: moving the filter to the cleaning tank, reciprocating at the cleaning tank, and rotating the roller to dry the filter;

Cleaning the cleaning tank step: moving the filter net out of the cleaning tank, so that the water collecting tank sprays water to the cleaning tank to clean the cleaning tank, and the cleaning tank discharges the sewage during the cleaning process;

Washing the filter step: injecting the water collecting tank into the cleaning tank, moving the filter to the cleaning tank, reciprocating at the cleaning tank, and rotating the roller brush to wash the filter;

Filter return step: Move the filter to the air inlet.

Optionally, the step of collecting the water filter before the dry brush filter step further comprises: controlling the wall-mounted air conditioner to operate the dehumidification mode, so that the surface of the evaporator forms condensed water and enters the water collecting tank.

Optionally, after the filter returning step, the method further includes: a cleaning tank draining step: discharging the water in the cleaning tank.

Optionally, in the step of washing the filter, after moving the filter to the cleaning tank, immersing it in water for a preset time, and then washing the brush by the roller brush.

The wall-mounted air conditioner of the present invention and the cleaning control method thereof realize automatic cleaning of the filter. Moreover, the cleaning process of the filter is carried out in a cleaning tank located at the lower part of the casing, so that no dust is dropped on the evaporator to cause secondary pollution.

Because the flocculation and granular dust accumulate on the filter net, the floc is directly washed out with water and is not easily separated from the filter net, but is easily entangled on the filter net, but can be brushed under the brush when dry. A small amount of fine dust particles are not easily brushed, but are easily washed away by water. Therefore, the cleaning method of the present invention dryly brushes and then scrubs the filter to make the cleaning more thorough.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention will be described in detail, by way of example, and not limitation, The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;

Figure 2 is an enlarged view of a portion A of the structure shown in Figure 1;

3 is a schematic structural view of a water collecting tank and a cleaning tank according to an embodiment of the present invention;

4 is a schematic view of a cleaning control method according to an embodiment of the present invention;

Figure 5 is a flow chart of a cleaning control method in accordance with one embodiment of the present invention.

Detailed ways

One aspect of the invention provides a wall-mounted air conditioner. 1 is a schematic view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention; FIG. 2 is an enlarged view of a portion A of the structure shown in FIG. 1. FIG. 3 is a water collecting tank 400 and a cleaning tank 500 according to an embodiment of the present invention. Schematic diagram of the structure.

The wall-mounted air conditioner of the embodiment of the invention is an air conditioner that realizes an indoor cooling/heating function by using a steam circulation refrigeration system. Figure 1 illustrates an indoor unit 10 of a wall-mounted air conditioner.

As shown in FIGS. 1 and 3, the indoor unit 10 of the wall-mounted air conditioner includes a casing 100, an evaporator 200, a fan 300, a filter net 800, a water collecting tank 400, a cleaning tank 500, a roller brush 600, and at least one driving device. Wherein, the upper side of the housing 100 is provided with an air inlet 110 to allow indoor air to enter. The evaporator 200 is disposed inside the casing 100 for heat exchange with air entering the interior of the casing 100 from the air inlet 110 to form a heat exchange wind, and the heat exchange air is blown from the air outlet of the casing 100 into the room to achieve refrigeration/ Heating effect. The fan 300 is used to achieve forced convection heat exchange between the evaporator 200 and the air, and blows the heat exchanged air into the room.

The filter 800 is disposed at the air inlet 110 of the casing 100 for blocking impurities such as dust entering the wind. When the wall-mounted air conditioner runs for a long time, the dust accumulated on the filter 800 will affect the intake of the air inlet 110. Air volume.

The header tank 400 is disposed at a lower portion of the housing 100. In the wall-mounted air conditioning refrigeration or dehumidification operation, water vapor is condensed on the surface of the low-temperature evaporator to form condensed water, and the water collection tank 400 is used to collect the condensed water. A float water level gauge 410 may be disposed in the water collection tank 400 for detecting the water level in the water collection tank 400 and controlling the amount of water.

A cleaning tank 500 is disposed below the header tank 400 and is configured to controllably introduce condensed water from the header tank 400. In some embodiments, as shown in FIG. 3, an outlet pipe 420 for injecting water into the cleaning tank 500 may be disposed at the bottom of the water collecting tank 400, and an electric control valve 421 is disposed on the water outlet pipe 420 to control the outlet pipe 420 to the cleaning tank. 500 water injection process. A drain pipe 510 is disposed at the bottom of the cleaning tank 500, and an electric control valve 511 is disposed thereon for controlling the water in the cleaning tank 500 to be discharged to the outside.

The roller brush 600 is disposed in the cleaning tank 500, and has a bristles on its surface and can be electrically rotated for cleaning dust and impurities on the filter 800 during the rotation.

The drive device is used to drive the filter 800 to move. When the wall-mounted air conditioner is in normal operation, the filter 800 is placed at the air inlet 110 for filtering the incoming air. When the filter 800 needs to be cleaned, the drive device can move the filter 800 to the cleaning tank 500 and reciprocate at the cleaning tank 500 while rotating the roller brush 600 to sweep the filter 800. After the sweep is completed, the drive moves the filter 800 back to the air inlet 110. When the filter 800 is cleaned, the water collection tank 400 can also be filled with water into the cleaning tank 500, and the filter 800 can be washed with condensed water to improve the cleaning effect.

In the wall-mounted air conditioner of the embodiment of the invention, the cleaning process of the filter net 800 is performed in the cleaning tank 500 located at the lower portion of the casing 100, and dust and impurities do not fall on the evaporator 200 to cause secondary pollution.

In some embodiments, as shown in FIG. 3, the water collecting tank 400 is provided with a nozzle 430 for spraying the condensed water in the water collecting tank 400 to the cleaning tank 500, or to the filter 800 in the cleaning tank 500, to form a pair. The impact of dust on the filter 800 is facilitated to drop.

In some embodiments, as shown in FIGS. 1-2, each drive device includes a closed drive belt 710 (drive belt forming loop structure) and a motor 720 that forms a similar belt drive structure for motorized drive belt 710 to move. The drive belt 710 extends from the air inlet 110 to the cleaning tank 500, which is fixedly coupled to the filter 800 to drive the filter 800 to move. The number of driving devices is preferably two, and the driving belts 710 of the two driving devices are fixedly connected to the lateral ends of the filter net 800, respectively.

In particular, each drive unit may also include a plurality of rotatable support rollers 750 for supporting the belt 710. Moreover, the other function of the supporting roller 750 is to guide the extending direction of the driving belt 710 to extend rearward from the air inlet to the rear side wall 1001 of the casing 100, and then extend down the rear side wall 1001 of the casing 100 to the cleaning tank 500. And extending from the cleaning tank 500 forward and upward. This allows the belt 710 to bypass the evaporator 200.

Further, each of the driving devices further includes two rails 730 and a plurality of supports 760 arranged in parallel. The two guide rails 730 extend parallel to the drive belt 710 and are fixed to the housing 100. A plurality of supports 760 are secured to the filter screen 800, which in turn is coupled to the drive belt 710 by a joint 810. Each of the two ends of each of the support members 760 has a roller 761 to abut against the guide rail 730. When the belt 710 is moved, the roller 761 rolls on the guide rail 730. The support member 760 is capable of guiding the direction of movement of the belt 710 and the filter 800 to make the movement of the belt 710 and the filter 800 smoother.

In some prior art improvements, the filter is wound on the shaft, and the movement of the filter 8 is achieved by the rotation of the shaft. However, the structure needs to reduce the hardness of the filter to enable smooth winding, but the filtration of the softer material. The net is less durable. In the embodiment of the present invention, the bending angle of the filter 800 during the whole movement is small, and it is not necessary to reduce the hardness of the filter 800.

Another aspect of the present invention also provides a cleaning control method for a wall-mounted air conditioner for cleaning a filter 800 of a wall-mounted air conditioner of any of the above embodiments. 4 is a schematic diagram of a cleaning control method in accordance with one embodiment of the present invention. As shown in FIG. 4, the cleaning control method of the present invention may generally include the following steps:

Step S401, a dry brush filter step: opening the driving device to move the filter 800 to the cleaning tank 500. The filter screen 800 is reciprocated at the cleaning tank 500, the roller brush 600 is rotated to dryly brush the filter net 800, and the larger particles of dust and flocs on the filter net 800 are brushed off to be dropped into the cleaning tank 500. Inside.

Step S402, the step of cleaning the cleaning tank: the filter 800 is removed from the cleaning tank 500 by using a driving device. The water collecting tank 400 is sprayed with water to the cleaning tank 500 to clean the cleaning tank 500, and the cleaning tank 500 is discharged from the sewage during the cleaning process.

Specifically, the nozzle 430 of the water collection tank 400 can be opened to spray water to the cleaning tank 500, and the electric control valve 511 of the water discharge pipe 510 of the cleaning tank 500 is opened, and the sewage containing the dust and the floc in the cleaning tank 500 is discharged. The water pipe 510 is discharged.

Step S403, the step of washing the filter screen: the water collection tank 400 is injected into the cleaning tank 500, the filter net 800 is moved to the cleaning tank 500, and reciprocated at the cleaning tank 500, and the roller brush 600 is rotated to wash the filter net 800.

Specifically, the electric control valve 421 of the water outlet pipe 420 of the water collecting tank 400 is opened, and the water collecting tank 400 is injected into the cleaning tank 500. After the water level of the cleaning tank 500 reaches a certain height, the filter net 800 is moved to the cleaning tank 500 for washing. Alternatively, the nozzle 430 can be opened to spray water onto the filter 800 to impact dust on the filter 800.

Step S404, the filter returning step: moving the filter 800 to the air inlet 110 by using a driving device.

The embodiment of the present invention considers that mainly flocs and granular dust accumulate on the filter net 800, and the floccule is not easily separated from the filter net 800 by rinsing with water, but is easily entangled on the filter net 800, but can be dried when dry. Brush it with a brush 600. A small amount of fine dust particles are not easily brushed, but are easily washed away by water. Therefore, the cleaning method of the present invention firstly brushes and re-washes the filter 800 to make the cleaning effect better.

Figure 5 is a flow chart of a cleaning control method in accordance with one embodiment of the present invention. As shown in FIG. 5, the cleaning control method of a preferred embodiment of the present invention sequentially performs the following steps:

Step S501, the water collecting tank collecting step: controlling the wall-mounted air conditioner to operate the dehumidification mode, so that the surface of the evaporator 200 forms condensed water and enters the water collecting tank 400.

Specifically, the main control board of the wall-mounted air conditioner receives the indication that the user needs to clean the filter 800 or reserves the time for cleaning the filter 800, so that the air conditioner operates the dehumidification mode, and the dehumidification mode can be on the surface of the evaporator 200 compared to the cooling mode. More condensed water is formed. The float water level gauge 410 is used to feed back the water level information of the water collection tank 400 to the main control board, and after the preset water level is reached, the air conditioner is controlled to stop.

Step S502: Dry brush filter step: the driving device is moved to move the filter 800 to the cleaning tank 500, and the filter 800 is reciprocated at the cleaning tank 500, so that the roller brush 600 rotates to dry the filter 800 and brush off. The larger particles of dust and flocs on the screen 800 are dropped into the cleaning tank 500.

Step S503, the step of cleaning the cleaning tank: the filter 800 is moved out of the cleaning tank 500 by using a driving device. The water collecting tank 400 is sprayed with water to the cleaning tank 500 to clean the cleaning tank 500, and the cleaning tank 500 is discharged from the sewage during the cleaning process.

Step S504, the step of washing the filter screen: the water collecting tank 400 is injected into the cleaning tank 500, the filter net 800 is moved to the cleaning tank 500, and reciprocated at the cleaning tank 500, and the roller brush 600 is rotated to wash the filter net 800.

Further, after the filter 800 is moved to the cleaning tank 500, it can be immersed in water for a predetermined time, and then the roller brush 600 is washed.

Step S505, the filter returning step: moving the filter 800 to the air inlet 110 by using a driving device.

Step S506, the cleaning tank draining step: opening the electric control valve 511 of the drain pipe 510 in the cleaning tank 500, and discharging the water in the cleaning tank 500. This step can be performed in synchronization with step S505.

In the embodiment of the present invention, the driving device of the filter net 800, the nozzle 430 of the water collecting tank 400, the electric control valve 421 of the water outlet pipe 420, and the electric control valve 511 of the drain pipe 510 of the cleaning tank 500 are all controlled by the main control board, thereby realizing The cleaning process is fully automated and enhances the user experience.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A wall-mounted air conditioner includes an indoor unit, and the indoor unit includes:

a housing having an air inlet at an upper side and an evaporator disposed therein;

a filter mesh disposed at the air inlet;

a water collecting tank disposed at a lower portion of the casing and configured to collect condensed water on the surface of the evaporator;

a cleaning tank disposed below the water collecting tank and configured to controlly introduce condensed water from the water collecting tank;

a roller brush disposed in the cleaning tank;

At least one driving device configured to controllably drive the filter screen to reciprocate between the air inlet and the cleaning slot to allow the roller brush to dryly brush the filter screen, and After the cleaning tank introduces condensed water, the roller brush is rotated to wash the filter.
A wall-mounted air conditioner according to claim 1, wherein each of said driving means comprises:

a closed drive belt extending from the air inlet to the cleaning slot, the fixed filter is fixedly coupled to drive the filter to move;

a motor for driving the belt to move.
The wall-mounted air conditioner according to claim 2, wherein each of said driving devices further comprises:

a plurality of rotatable support rollers for supporting the belt, and guiding the belt to extend from a rearward direction of the air inlet to a rear side wall of the casing, and then along a rear side of the casing The wall extends downwardly to the cleaning trough and extends forward and upward from the cleaning trough.
The wall-mounted air conditioner according to claim 3, wherein each of the driving devices further comprises:

Two guide rails arranged in parallel, extending in parallel with the transmission belt;

A plurality of support members are fixed to the filter net, and both ends of each of the support members respectively have rollers for abutting against the guide rails to guide the moving direction of the belt and the filter screen.
A wall-mounted air conditioner according to claim 2, wherein

The number of the driving devices is two, and the driving belts of the two driving devices are respectively fixedly connected to the lateral ends of the filter net.
A wall-mounted air conditioner according to claim 1, wherein

The water collecting tank is provided with a nozzle for spraying condensed water in the water collecting tank to the cleaning tank.
A cleaning control method for a wall-mounted air conditioner for cleaning a filter net of a wall-mounted air conditioner according to any one of claims 1 to 6, the cleaning control method comprising the steps of:

Dry brushing filter step: moving the filter net to the cleaning tank, and reciprocating at the cleaning tank, and rotating the roller brush to dry the filter screen;

Step of cleaning the cleaning tank: removing the filter net from the cleaning tank, causing the water collecting tank to spray water to the cleaning tank to clean the cleaning tank, and discharging the cleaning tank to the sewage during the cleaning process;

a step of washing the filter: injecting the water collecting tank into the cleaning tank, moving the filter net to the cleaning tank, and reciprocating at the cleaning tank, and rotating the roller brush to wash the washing machine Filter; and

Filter return step: moving the filter to the air inlet.
The cleaning control method according to claim 7, wherein the dry brush filter step further comprises:

Water collecting tank water collecting step: controlling the wall-mounted air conditioner to operate the dehumidification mode such that the surface of the evaporator forms condensed water into the water collecting tank.
The cleaning control method according to claim 7, after the filtering network returning step further comprises:

Cleaning tank drainage step: draining the water in the cleaning tank.
The cleaning control method according to claim 7, wherein

In the step of washing the filter screen, after moving the filter net to the cleaning tank, it is immersed in water for a preset time, and then the roller brush is used to wash it.