WO2019120095A1

WO2019120095A1 - Cleaning device and air-conditioner indoor unit having same

Info

Publication number: WO2019120095A1
Application number: PCT/CN2018/120114
Authority: WO
Inventors: 吴洪金; 朱振学; 孙运刚; 董元伟; 于永平; 陈会敏; 臧元强
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-12-20
Filing date: 2018-12-10
Publication date: 2019-06-27
Also published as: CN108105867A; CN108105867B

Abstract

A cleaning device, comprising: a filter screen box (100) disposed inside an indoor unit, and having an upper box body (101), a lower box body (102), and an inner box body (103); and a dust removal box (200) disposed below the filter screen box (100) and provided with a dust removal rolling brush for cleaning a dust filtering screen (300). The upper box body (101) is configured to extend forwards from the inner side of an air inlet (20) located at the top of the indoor unit and then to be bent to extend downwards to the front side of the interior of the indoor unit. The lower box body (102) is configured behind the upper box body (101) in the manner of profiling same so as to restrict the dust filtering screen (300) between the lower box body and the upper box body. The lower portion of the inner box body is transversely provided with a transmission bar (1030) which is configured to drive the dust filtering screen (300) to rotate around the transmission bar (1030). The inner box body (103) is configured to have an opening at the bottom to expose at least a portion of the outer side surface of the dust filtering screen (300) so that the portion of the dust filtering screen (300) is in contact with the dust removal rolling brush (201). The inner box body (103) and the upper box body (101) located in front of the inner box body define a front rail, the inner box body (103) and the lower box body (102) located behind the inner box body define a rear rail, so that the dust filtering screen (300) can be controlled to enter the rear rail from the front rail around the transmission bar (1030) or to enter the front rail from the rear rail.

Description

Cleaning device and air conditioner indoor unit having the same

Technical field

The invention relates to the technical field of air conditioning, and in particular to a cleaning device for cleaning a filter screen of an indoor unit of an air conditioner.

Background technique

In order to improve the indoor air quality, the indoor unit of the wall-mounted air conditioner is generally provided with a filter device such as a filter screen and a dust removing device such as a brush for cleaning the filter device. However, the mechanism of the existing dust removing device is complicated, and the installation and disassembly steps are cumbersome. Therefore, the complicated structure not only adversely affects the air intake of the indoor unit, but also seriously affects the user experience comfort and reduces the air conditioning performance.

Summary of the invention

It is an object of the present invention to provide a cleaning device for removing dust from a filter screen.

A further object of the invention is to simplify the installation and removal of the cleaning device.

Another further object of the present invention is to provide an air conditioner indoor unit having an automatic cleaning filter function.

In particular, the present invention provides a cleaning device comprising:

At least one filter box is disposed inside the indoor unit of the wall-mounted air conditioner, each filter box has an upper box body, a lower box body and an inner box body to install at least one flexible dust filter net of the indoor unit;

The dust box is disposed under the at least one filter box, and the dust box is provided with a dust removing roller brush to clean at least one dust filter net;

The upper casing is configured to extend forward from the inside of the air inlet located at the top of the indoor unit and then bend downward to extend to the front side of the indoor unit;

The lower case is disposed to be contoured to the rear of the upper case to define the dust filter between the lower case and the upper case;

The lower part of the inner box body is provided with a transmission rod in a lateral direction, and is configured to drive the dust filter net to rotate around the transmission rod;

The inner box body is configured to have a bottom opening to expose at least a portion of the outer side surface of the dust filter net rotated thereto to contact the dust filter net with the dust removing roller brush;

The inner box body and the upper box body at the front side thereof respectively define a front rail, and the lower box body at the rear side thereof defines a rear rail, so that the dust filter net in each filter box can be controlled to rotate around the transmission rod from the front portion The track enters the rear track or enters the front track from the rear track.

Further, the filter box is two, and is arranged to be arranged side by side in the lateral direction on the cover of the indoor unit;

The filter box is two, configured to be arranged side by side in the lateral direction on the casing of the indoor unit, and spans the lateral dimension of the at least one filter box from below;

There are two filter nets, which are respectively disposed in two filter boxes, and each filter net has a frame and two transmission racks respectively disposed on two lateral frames on the lateral outer side thereof;

Two transmission gears are respectively disposed at the lateral end portions of the transmission rods in each of the filter boxes, and the two transmission racks of each of the filter screens are respectively configured to mesh with the two transmission gears of the transmission rod.

Further, the cleaning device further includes:

a driving device configured to drive the two transmission rods to rotate to drive the dust filter to rotate;

The ends of the transmission rack are all arranged to have a closed tooth shape, so that when the filter screen is rotated to the transmission shaft at its longitudinal end, the end of the transmission rack is locked to the transmission gear;

The drive device is further configured to control the filter screen to reverse when the drive rack is locked to the drive gear;

The filter box includes at least one travel switch disposed at a rear end portion of a portion of the upper casing located inside the air inlet to prevent the dust filter from rotating upward from the front rail until the rear end thereof touches the travel switch.

Further, the filter box further includes a bottom cover configured to be pivotally disposed at a lower end of the upper case;

The bottom cover is controllably rotated rearwardly to a closed position to press the filter screen toward the drive rod to engage the drive rack with the drive gear;

The bottom cover can be controlled to rotate forward to an open position to allow the filter screen to be detached from the filter box.

Further, the dust box further includes:

a dust removing roller disposed laterally on the top of the dust box and configured to be controlled to rotate and contact at least a portion of the outer side surfaces of the two dust filters to sweep dust from the two dust screens;

a dust collecting comb disposed laterally on the dust box and below the dust removing roller brush, the dust collecting comb having a plurality of comb teeth to collect dust collected by the dust removing roller brush on the plurality of comb teeth;

a dust removing shaft disposed laterally on the dust box and under the dust collecting comb to be separated from the dust removing roller by a plurality of comb teeth, the dust removing shaft being configured to be controlled to rotate to scrape dust on the dust collecting comb, and The scraped dust is pushed into the dust collecting chamber disposed at the lower portion of the dust box.

Further, the driving device includes:

The output shafts of the first motor and the second motor are respectively disposed coaxially with the transmission rods of the two filter boxes, and can respectively controlly output two motive powers of opposite directions to drive the two transmission rods respectively. Forward or reverse; and

The third motor is configured to drive the dust removing roller and the dust removing shaft to rotate synchronously through the gear set to move the dust removing roller and the dust removing shaft relative to the comb teeth, respectively.

Further, the dust box further includes:

a cassette seat configured to extend in a lateral direction of the indoor unit, and having a bottom wall and extending a front wall, a rear wall and a side wall from a peripheral side edge of the bottom wall to form a dust collecting chamber having a top opening;

a lid having a bottom plate and a rear plate and a side plate extending upward from a peripheral side edge of the bottom plate, the bottom plate being erected on the top of the box seat, and the top portion of the cover portion is open, and the bottom plate is provided with a strip-shaped opening extending in the lateral direction to allow The dust falling from the dust removing shaft enters the dust collecting chamber through the strip opening.

Further, the dust collecting comb has a base plate and is disposed to be disposed laterally on the bottom plate of the cover and located behind the strip opening, and the plurality of comb teeth are upwardly bent from the upper surface of the base plate toward the dust removal direction Extending the brush so that at least a portion of the teeth of the plurality of comb teeth are in contact with at least a portion of the dust removing roller and are located above the strip opening;

The dust removing shaft has a central shaft body and a plurality of fins extending outward from the central shaft body, and the fins are configured to be bent in an axial direction of the central shaft body to form a plurality of spaced protrusions and a plurality of spaced grooves And scraping off dust on the plurality of comb teeth by the protrusions, collecting dust through the grooves and pushing the dust above the top opening;

The plurality of fins are symmetrically disposed on both sides of the central shaft body and are all located in the same plane to alternately contact the plurality of comb teeth when the dust removing shaft is controlled to rotate.

Further, the inner box body is engaged between the lower box body and the upper box body at the inner lower portion of the lower box body, and is configured to extend upward from the lower portion of the lower box body to the bent portion of the lower box body, so that the front rail and the rear portion The track can accommodate at least half of the filter screen;

The upper and lower casings are located at the inner side of the air inlet to define a common rail, and the travel switch is disposed at the rear end of the common rail.

The present invention also provides an air conditioner indoor unit comprising the cleaning device according to any of the above.

The cleaning device of the invention drives the dust filter net through the filter box to roll and continuously contacts the dust removing brush in the dust box from two different directions to achieve cleaning of the dust filter net.

Further, the cleaning device of the present invention is integrated into a separate filter box through a dust filter net and a moving mechanism for driving the rotation thereof, and the dust collecting and dust collecting structure is integrated in a separate dust box, so that the cleaning device is modularized and structured. It is more compact, simplifies the operation required for the user to install and disassemble the components of the cleaning device, and enhances the convenience of the cleaning device.

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 are described in detail below 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 structural view of a cleaning device according to an embodiment of the present invention;

2 is a schematic exploded view of a cleaning device in accordance with one embodiment of the present invention;

Figure 3a is a schematic structural view of a filter box of a cleaning device according to an embodiment of the present invention;

Figure 3b is a schematic exploded view of a filter box of a cleaning device in accordance with one embodiment of the present invention;

Figure 4a is a schematic structural view of the filter box of the cleaning device viewed from another direction, showing details B of the dust filter according to an embodiment of the present invention;

Figure 4b is a schematic partial enlarged view of detail B of the flexible dust screen shown in Figure 4a;

Figure 5 is a schematic exploded view of the dust removing assembly of the dust box according to an embodiment of the present invention, showing the dust removing brush, the detail D of the dust removing shaft and the detail C of the dust collecting comb;

Figure 6 is a schematic structural view of a stitch roller brush of a cleaning device according to an embodiment of the present invention, wherein detail A shows a protrusion;

Figure 7 is a schematic partial enlarged view of detail A of the stitch roller brush of Figure 6, showing the stitch set and stitch;

Figure 8 is a schematic partial enlarged view of detail D of the dust collecting comb of Figure 5, showing the base plate and comb teeth;

Figure 9 is a schematic partial enlarged view of detail D of the dust removing shaft shown in Figure 5, showing the central shaft body and fins;

Figure 10 is a schematic structural view of a dust box of a cleaning device according to an embodiment of the present invention;

Figure 11 is a schematic exploded view of a dust box of a cleaning device according to an embodiment of the present invention;

Figure 12 is a schematic structural view of a dust box assembly dust removing assembly according to an embodiment of the present invention, showing details E and F of the dust removing roller and the dust removing shaft and its transmission mechanism;

Figure 13 is a schematic partial enlarged view of detail E of the partial dust removing assembly of Figure 12, showing a partial gear set;

Figure 14 is a schematic partial enlarged view of detail F of the partial dust removing assembly of Figure 12, showing another partial gear set;

Figure 15 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention.

Detailed ways

The cleaning device can generally be disposed inside the wall-mounted air conditioner indoor unit to install and clean the dust filter 300 of the indoor unit. The dust filter net 300 may be one or more, and may be a flexible dust filter net 300 having a certain elasticity to make it more flexible in the installation position of the indoor unit. For convenience of description, the "upper", "lower", "front", "back", "top", "bottom", "longitudinal" and "horizontal" directions mentioned in the specification are all in accordance with the spatial position of the indoor unit of the wall-mounted air conditioner. The relationship is defined, for example, the side of the indoor unit facing the user is the front, and the side of the indoor unit is the rear.

Referring to Figures 1 and 2, the cleaning device can include at least one screen box 100 and a dust box 200. The at least one filter box 100 and the dust box 200 may be separate modules and may be respectively fixed to the casing of the indoor unit.

Referring to Figures 3a and 3b, each of the screen boxes 100 can have an upper case 101, a lower case 102 and an inner case 103 to mount at least one flexible filter screen 300 of the indoor unit. The dust box 200 may be disposed under the at least one screen box 100 and span the lateral dimension of the at least one screen box 100 from below. The dust box 200 may be provided with a dust removing brush 201 to clean the at least one dust screen 300. That is, when there are a plurality of filter boxes 100, the dust box 200 and the dust removing brush 201 disposed thereon can cover all the filter boxes 100 at least in the lateral direction to filter the dust nets in all the filter boxes 100. 300 for cleaning. Further, the dust box 200 can also press at least one filter box 100 from below, whereby the dust box 200 can limit the plurality of filter boxes 100 and enhance the stability of the cleaning device as a whole (especially when the filter box 100 for multiple times).

The upper case 101 of the filter case 100 may be configured to extend forward from the inside of the air inlet 20 located at the top of the indoor unit and then bend downward to extend to the front side of the indoor unit. The lower case 102 is disposed to be contoured to the rear of the upper case 101 to define the dust filter 300 between the lower case 102 and the upper case 101. The lower portion of the inner casing 103 is provided with a transmission rod 1030 in the lateral direction, and is configured to drive the dust filter 300 to rotate around the transmission rod 1030. In particular, the inner casing 103 can define a front rail with the upper casing 101 at the front thereof and a rear rail 102 with a lower casing 102 at the rear thereof to define a dust filter in each of the filter cartridges 100. The 300 can be controlled to move around the transmission rod 1030 from the front rail into the rear rail or from the rear rail into the front rail 123a. Specifically, the inner box body 103 is engaged between the lower case body 102 and the upper case body 101 at the inner lower portion of the lower case body 102, and is configured to extend upward from the lower portion of the lower case body 102 to the bend of the lower case body 102 to Both the front rail 123a and the rear rail 123b can accommodate at least half of the dust screen 300.

That is, the number of the filter box 100 and the dust filter net 300 and the installation position correspond to each, and each of the dust filter nets 300 is rotatably wound around the transmission rod 1030 of one of the filter cases 100. The screen box 100 defines a continuous track through the upper case 101, the lower case 102 and the inner case 103 to define and guide the movement of the filter screen 300. The upper upper casing 101 and the lower lower casing 102 located on the inner side of the casing are far apart, that is, there is a large gap between the upper casing 101 and the lower casing 102 at the lower portion of the filter casing 100, so that the inner casing is provided. The body 103 is snapped onto the lower case 102 between the two to mount the transmission rod 1030. Further, the middle portion of the inner box body 103 or other positions offset from the middle portion may be provided with additional ribs or webs or the like to additionally support the screen.

The inner casing 103 divides a large gap space between the upper casing 101 and the lower casing 102 into two smaller spaces, and the front surface and the rear surface thereof are respectively formed with corresponding guide rails or ribs to respectively respectively Two tracks (a front rail and a rear rail) are formed with the rear surface of the upper casing 101 and the front surface of the lower casing 102. Further, the front rail and the rear rail are engaged below the transmission rod 1030 mounted to the inner casing 103 to collectively form a track that continuously and allows at least one of the dust screens 300 to be steered, thereby reducing the volume of the screen cartridge 100, It makes it more compact and more suitable for indoor units of household wall-mounted air conditioners.

A portion of the upper case 101 and the lower case 102 located inside the air inlet 20 defines a common rail 123. That is, there may be a small gap between the upper portion of the casing 101 and the lower casing 102 at the inner portion of the air inlet 20 to directly form the common rail 123. Thus, when the dust filter 300 is rotated upward until one end thereof reaches the end of the front rail or the rear rail, it can directly enter the common rail to continue moving. The dust filter 300 is obviously not located at the upper end portion of the front rail 123a or the upper end portion of the rear rail 123b at the same time, so that the common rail 123 can continue to function as a track during the forward or backward rotation of the dust filter 300. Therefore, the cost of manufacturing the filter box is saved, and the filter box has a compact structure and a small footprint.

Specifically, in some embodiments of the present invention, when the dust filter net 300 slides back and forth from the front rail into the common rail, the upper side of the dust filter net 300 may be disposed to be slidably embedded in the upper side chute of the common rail, The lower side of the dust filter net 300 may be correspondingly slidably abutted against the upper end surface of the lower side chute wall of the common rail. Correspondingly, when the dust filter net 300 slides back and forth from the rear rail into the common rail, the lower side of the dust filter net 300 is slidably embedded in the lower side chute of the common rail, and the upper side of the dust filter net 300 is slidably abutted. Connect to the lower end surface of the upper chute wall of the shared rail. Further, the inner box body 103 may be configured as a bottom opening to expose at least a portion of the outer side surface of the at least one dust filter net 300 rotated thereto to bring the portion of the dust filter net 300 into contact with the dust removing roller brush 201. That is, most of the mesh of the dust filter 300 is located inside the filter box 100, and is located within the frame defined by the upper case 101 and the lower case 102 to avoid interference with other structures inside the indoor unit, thereby ensuring indoors. The normal operation of the machine heat exchange system and the cleaning device. The bottom opening of the inner casing 103 allows the bottom of the dust filter 300 at any rotational position to be exposed downwardly to the outside of the sieve cartridge 100, thereby facilitating dusting or cleaning provided in the rotating dust filter 200 and the dust box 200. The device is in contact to achieve cleaning of the filter.

The cleaning device of the present invention integrates one or more dust filter nets 300 and a moving mechanism for driving the same into one or more separate filter boxes 100, and integrates the dust collecting and dust collecting structure into a separate dust box 200. The cleaning device is modularized and the structure is more compact, which simplifies the operation required for the user to install and disassemble the components of the cleaning device, and enhances the convenience of the cleaning device.

In some embodiments of the present invention, referring to Fig. 1, both the screen case 100 and the dust filter net 300 may be two to cover the left and right portions in the lateral direction of the indoor unit, respectively. Specifically, the screen case 100 may be configured to be disposed side by side in the lateral direction of the casing of the indoor unit. Correspondingly, two dust filters 300 can be disposed in the two filter boxes 100, respectively. Each of the dust screens 300 may have a frame and two drive racks 301 respectively disposed on the laterally outer sides thereof. It should be noted that, as can be understood, the vertical frame here refers to a frame extending longitudinally on the left and right sides of the dust filter net 300 when it is naturally deployed in a plane. Two transmission gears 1031 are respectively disposed at the laterally opposite end portions of the transmission rod 1030 of each of the filter cases 100, and the two transmission racks 301 of each of the dust filter nets 300 are respectively disposed with the two transmission gears 1031 of the transmission rod 1030. Engage so that the filter screens 300 in each of the screen cases 100 rotate synchronously or asynchronously.

Figure 4a is a schematic structural view of the filter box 100 of the cleaning device in another direction, in accordance with one embodiment of the present invention. Figure 4b is a schematic partial enlarged view of the flexible dust screen 300 of Figure 4a.

Referring to Figures 4a and 4b, in some embodiments of the present invention, the ends of the drive rack are each configured to have a closed tooth profile such that the filter screen 300 passes through the drive teeth as it rotates to the drive shaft at its longitudinal ends. The ends of the strips are locked to the drive gears. Specifically, the closed tooth shape may be directly symmetrically disposed at the ends of the two transmission racks, or may be disposed at two ends of the dust filter net 300 at the longitudinal ends thereof (ie, the rotational directions) The laterally extending frame is formed by a portion of the two laterally extending frames forming the ends of the two drive racks.

In some embodiments of the invention, the cleaning device further includes a drive device. The driving device can be configured to drive the two transmission rods 1030 to rotate to drive the dust filter 300 to rotate. Further, the drive means may be further configured to control the filter screen 300 to reverse when the drive rack is locked to the drive gear. That is, the drive can be configured to control the output of two oppositely directed motive forces to drive the drive rod 1030 to rotate in a clockwise or counterclockwise direction as viewed from its axial direction.

In some embodiments of the present invention, the screen case 100 may further include at least one travel switch 223 disposed at a rear end portion of the upper upper casing located inside the air inlet 20 to rotate the dust filter 300 upward from the front rail to The rear end stops moving when it touches the travel switch. Specifically, the travel switch may be disposed in the upper side chute of the common track away from the ends of the front rail and the rear rail to define the stroke of the dust filter 300 after it enters the common rail from the front rail.

The default position of the filter screen 300 when it is stationary is located inside the panel and the air inlet 20 to achieve the best effect of filtering air. When the dust filter 300 is in the aforementioned default position, one end of the lower end of the drive rack having a closed tooth shape can be locked to the side of the drive gear that is adjacent to or adjacent to the rear rail.

Further, the rotation process of the dust filter 300 can be divided into the following steps:

After the cleaning device (or its driving device) receives the instruction to clean the dust filter 300, the driving device can be started under the control of the indoor unit main control board and the like, and the driving rod 1030 is rotated in the first direction to further drive the dust filter 300. Rotating downwardly and rearwardly from the inside of the panel and the air inlet 20 causes at least a portion of the dust screen 300 to gradually disengage from the front rail and into the rear rail.

When the mesh of the dust filter 300 is completely separated from the front rail, the other end of the transmission rack (that is, the end at the lower end of the transmission rack at this time) can be locked to the approach or proximity of the transmission gear. One side of the front track. At this time, the state in which the transmission gear is locked by the transmission rack and cannot be rotated can be fed back to the main control board of the indoor unit by the driving device, and the driving device can change the direction of the output force under the control of the main control board, so that the transmission rod The 1030 is controlled to rotate in the second direction and drive the dust filter 300 into the front rail from the rear rail.

When the mesh of the dust filter 300 is completely removed from the rear rail to the default position, the transmission rack and the transmission gear are locked again. At the same time, the end of the dust filter 300 located in the common track at this time can be in contact with the stroke switch, thereby feeding back to the main control board to cause the drive device to be controlled to stop, thereby completing one rotation cycle of the dust filter 300. During each rotation cycle, the dust filter 300 is twice in contact with the dust removing roller 201 in the dust box 200 twice in the direction of the rotation of the dust filter 300 to perform the cleaning of the dust filter 300.

In some embodiments of the present invention, referring to FIGS. 1 and 2, each of the screen boxes 100 may further include a bottom cover 104 configured to be pivotally disposed at a lower end of the upper case 101. The bottom cover 104 can be controlled to be rotated rearwardly to a closed position to press the filter screen 300 toward the drive rod 1030 to engage the drive rack 301 with the drive gear 1031. The bottom cover 104 can also be controlled to rotate forward to an open position to allow the dust screen 300 to be detached from the screen box 100. That is, when the indoor unit and the cleaning device are in normal operation, the bottom cover 104 rotates the frame of the filter dust net 300 backward to engage the transmission rack 301 on both sides with the transmission gear 1031 to ensure the stability of the dust filter net 300. Turn. When the dust filter 300 needs to be taken out for replacement or cleaning, the bottom cover 104 can be controlled to rotate forward and upward to disengage the transmission rack 301 and the transmission gear 1031, so that the user can extract the dust filter 300 from under the filter box 100, which simplifies. The replacement operation of the dust filter 300. Further, the inner side of the bottom cover 104 may be correspondingly provided with a rail or a guide rail to ensure that it smoothly slides and rotates within the filter box 100 while being pressed against the dust filter net 300.

Figure 5 is a schematic exploded view of the dust removing assembly of the dust box 200, showing the dust removing roller 201, the dust removing shaft 203, and the dust collecting comb 202, in accordance with one embodiment of the present invention.

Referring to FIG. 5, in some embodiments of the present invention, the dust box 200 may include a dust removing brush 201, a dust collecting comb 202, a dust removing shaft 203, and a dust collecting chamber formed at a lower portion of the dust box 200. The dust box 200 can have a top opening 2040 formed above the dirt collection chamber to allow dust within the screen box 100 to enter the dust collection chamber downward through the top opening 2040.

The dust removing roller 201 may be disposed laterally on the top of the dust box 200 and configured to be controlled to rotate and contact at least a portion of the outer side surface of the dust filter 300 to sweep the dust on the dust filter 300. That is, the top of the dust box 200 may be provided with a dust removing roller 201 for contacting the dust filter net 300 exposed to the outside of the filter box 100. The peripheral side of the dust removing brush 201 may be provided with bristles arranged in an intersecting and oblique arrangement to continuously contact the dust filter net 300 from a plurality of angles while rotating, thereby achieving a better dust removing effect.

Fig. 6 is a schematic structural view of a stitch roller brush 105 of a cleaning device according to an embodiment of the present invention, in which a projection is shown. Figure 7 is a schematic partial enlarged view of the stitch roller brush of Figure 6, showing the stitch set and stitches.

Referring to Figures 6 and 7, in some embodiments of the present invention, the screen box 100 can also have at least one pin roller brush 105 that is sleeved over the drive rod 1030. The pin roller brush 105 can be formed with a plurality of protrusions arranged to be in contact with the dust filter net 300 and push the dust adhering to the dust filter net 300 to the outside of the dust filter net 300 through the plurality of protrusions to remove the dust from the dust filter net 300. It is convenient to sweep the dust removing brush 201.

That is, the cleaning device can loosen the dust adsorbed by the dust filter net 300 and at least partially escape the mesh of the dust filter net 300 by the pin roller brush 105, and attach the protrusion on the pin roller brush 105 by "ejection". The dust in the mesh of the dust filter 300 is pushed up to the outside of the dust filter 300, and then the dust that has been pushed out to the substantially separated mesh is swept and collected by the dust removing brush 201.

In some embodiments of the present invention, the plurality of protrusions of the stitch roller 105 may include a plurality of rows of stitch groups 1050 spaced apart in the axial direction of the stitch roller 105, each set of stitches 1050 including a ring-shaped roller brush A plurality of stitches 1051 on the outer peripheral side of the 105, the stitch roller 105 is configured to be controlled to rotate to drive the dust filter 300 to roll cyclically, so that the mesh continues to roll and contacts the plurality of stitches 1051. Further, the plurality of stitches 1051 in each set of stitch groups 1050 extend obliquely outward from the outer peripheral side of the stitch roller 105, and are in the two sets of stitch groups 1050 adjacent in the axial direction of the stitch roller 105. The inclination direction of the stitches 1051 is opposite.

That is, the protrusions may be formed by regularly or irregularly arranged stitches 1051. Specifically, in some embodiments of the present invention, the plurality of stitches 1051 can be divided into a plurality of stitch sets 1050, and the number of stitches 1051 in each stitch set 1050 is the same and circumferentially disposed along the circumferential side of the stitch roller 105. Specifically, the distance between each two adjacent stitch groups 1050 may be 3 mm to 5 mm. The distance between the two stitches 1051 in each stitch set 1050 can also be from 3 mm to 5 mm. The stitches 1051 in each stitch group 1050 extend outward from the outer peripheral side surface of the stitch roller 105 in the same oblique direction (clockwise or counterclockwise as viewed from the cross section of the stitch roller 105). Further, the inclination directions of the stitches 1051 in the adjacent two stitch groups 1050 are different, that is, from the cross section of the stitch roller 105, and the plurality of stitches 1051 in the adjacent two stitch groups 1050 cross each other. Thereby, the plurality of stitches 1051 arranged in the axial direction of the stitch roller 105 can be staggered and inclined. When the stitch roller brush 105 contacts the dust filter 300 and pushes the dust out of the mesh, the plurality of stitches 1051 can pass through The force generated by the mesh of the dust filter 300 is more smoothly detached from the mesh, thereby making the cleaning operation of the cleaning device 10 smoother and smoother.

In other embodiments of the invention, the projections may also be configured as other structures having a high and low uneven surface.

Figure 8 is a schematic partial enlarged view of the dust collecting comb 202 of Figure 5, showing the base plate 2020 and comb teeth 2021.

The dust collecting comb 202 can be disposed on the dust box 200 in the lateral direction and under the dust removing brush 201. The dust collecting comb 202 has a plurality of comb teeth 2021 to collect dust collected by the dust removing brush 201 on the plurality of comb teeth 2021. . That is, the dust removing roller 201 located on the upper side of the dust collecting comb 202 is controlled to roll so that the dust adsorbed thereon is scraped off by the comb teeth 2021 of the dust collecting comb 202 located below it. The dust collecting comb 202 can further directly jam the scraped dust between the plurality of comb teeth 2021. Thereby, the dust is transferred from the dust removing brush 201 to the dust collecting comb 202, and no dust is generated during the transfer process, and the dust removing roller brush 201 scraped by the dust collecting comb 202 can continue to sweep and collect the dust collecting net 300. dust.

Specifically, referring to FIG. 8 , the dust collecting comb 202 may have a base plate 2020 and is disposed to be disposed on the dust box 200 in the lateral direction and behind the strip opening 2050 , and the plurality of comb teeth 2021 are from the base plate 2020 . The surface is upwardly and bent forwardly toward the dust removing brush 201 such that at least a portion of the teeth of the plurality of comb teeth 2021 are in contact with at least a portion of the dust removing roller 201 and are positioned above the strip opening 2050.

The dust removing shaft 203 can be disposed on the dust box 200 in the lateral direction and under the dust collecting comb 202 to be separated from the dust removing brush 201 by the plurality of comb teeth 2021, so as to avoid the generation of dry dust. The dust removing shaft 203 is configured to be controllably rotatable to scrape dust on the dust collecting comb 202, and to push the scraped dust into the dust collecting chamber provided in the lower portion of the dust box 200. That is, the dust between the comb teeth 2021 is scraped off by the dust removing shaft 203 which continuously and synchronously rotates with the dust removing brush 201. At this time, since the dust has been transferred to the dust box 200 in the lower portion of the cleaning device, it is located in the lower portion of the indoor unit away from the fan, and since the dust has been restricted to the lower side of the dust collecting comb 202 by the dust collecting comb 202 and the dust removing shaft 203 (corresponding to the space that has been blocked by the dust collecting comb 202), which is relatively isolated from the air supply area of the indoor unit, the dust can be directly pushed by the dust removing shaft 203 into the dust collecting chamber without dusting. .

Figure 9 is a schematic partial enlarged view of the dust removing shaft 203 shown in Figure 5, showing the central shaft body 2030 and the fin portion 2031. In some embodiments of the present invention, referring to FIG. 9, the dust removing shaft 203 has a central shaft body 2030 and a plurality of fin portions 2031 extending outward from the central shaft body 2030 thereof. The fin portions 2031 are disposed along the central shaft body 2030. The axial direction is bent to form a plurality of spaced protrusions and a plurality of spaced grooves, and the dust on the plurality of comb teeth 2021 is scraped off by the protrusions, and dust is collected through the grooves and pushed to the dust collecting chamber The opening.

The dust removing shaft 203 may be disposed below the adsorption roller and separated from the adsorption roller by a plurality of comb teeth 2021. The plurality of fins 2031 are symmetrically disposed on both sides of the central shaft body 2030 and are all located in the same plane to alternately contact the plurality of comb teeth 2021 when the dust removing shaft 203 is controlled to rotate.

Specifically, the plurality of fins 2031 can be divided into two groups, and the two sets of fins 2031 are respectively disposed on one axial section of the central shaft body 2030 and symmetrically disposed with respect to the axis of the central shaft body 2030. Each set of fins 2031 may be constituted by a complete fin portion 2031 that axially traverses the dust removing shaft 203, or each set of fins 2031 may be composed of a plurality of fin portions 2031 spaced along the axial direction of the dust removing shaft 203. Thereby, one or more fins 2031 respectively located on both sides of the central shaft body 2030 can be alternately rotated to the upper sweeping comb teeth 2021, and the scraped dust is pushed into the lower dust collecting chamber.

In some embodiments of the present invention, the dust removing roller 201 for cleaning dust may be directly disposed to traverse the indoor unit and simultaneously contact the two dust filtering nets 300 to adsorb dust. Correspondingly, in some embodiments of the present invention, the dust removing roller 201 and the dust removing shaft 203 may also be disposed in two stages, corresponding to the dust filter nets 300 in the two filter boxes 100, respectively. Specifically, referring to FIG. 9, the two-stage dust removing brush 201 may have two spaced apart rolling shafts, and the two rolling axes are coaxially fixedly connected by a connecting shaft. Correspondingly, the plurality of fins 2031 on the two-stage dust removing shaft 203 can be spaced apart in the axial direction of the dust removing shaft 203, and the axial center position of the dust removing shaft 203 is vacated to form the left and right wings. 2031 area.

Figure 10 is a schematic structural view of a dust box 200 of a cleaning device according to an embodiment of the present invention. Figure 11 is a schematic exploded view of a dust box 200 of a cleaning device in accordance with one embodiment of the present invention.

Referring to Figures 10 and 11, in some embodiments of the present invention, the dust box 200 may further include a cassette holder 204 and a lid 205. The cartridge holder 204 may be configured to extend in a lateral direction of the indoor unit, and has a bottom wall and a front wall, a rear wall, and a side wall extending upward from a peripheral side edge of the bottom wall to form the aforementioned dust collecting chamber having a top opening 2040. The cover 205 may have a bottom plate and a rear plate and a side plate extending upward from a peripheral side edge of the bottom plate. The bottom plate is mounted on the top of the box base 204, and the cover portion has a top opening 2040. The bottom plate is provided with a strip opening extending in a lateral direction. 2050, to allow dust falling from the dust removing shaft 203 to enter the dust collecting chamber via the strip opening 2050.

That is, the cartridge holder 204 is configured to extend in the lateral direction of the indoor unit and has a wider rectangular upward top opening 2040, and the lid 205 is erected at the top opening 2040 of the cartridge holder 204 to cover at least a portion of the top opening 2040. . Further, the cover 205 is provided with a narrow strip opening 2050 and is disposed such that the strip opening 2050 is directly below the dust removing shaft 203. The strip opening 2050 has a size in the length and width directions that is slightly larger than the axial dimension of the dust removing shaft 203 and between the outer end edges of the side fin portions 2031 when the fin portion 2031 is rotated substantially parallel to the plane of the strip opening 2050. The distance, thereby ensuring that the dust scraped by the fins 2031 falls at any angle during the rotation of the dust removing shaft 203, can enter the cassette holder 204 via the strip opening 2050.

In some embodiments of the present invention, the side plates of the cover 205 are oppositely provided with a plurality of through holes, that is, the left and right lateral ends of the cover 205 are correspondingly provided with a plurality of through holes to allow the dust removal roller The brush 201 and the dust removing shaft 203 are rotatably mounted therein. Further, the lower surface of the base plate 2020 of the dust collecting comb 202 may be fixed to the upper surface of the cover 205 on the rear side of the strip opening 2050, whereby the comb teeth 2021 collecting dust may be located at the strip opening 2050. Directly above, it is convenient for the dust box to collect the dust under the squeegee, that is, it is further ensured that the dust under the squeegee falls into the box seat 204 via the strip opening 2050.

In some embodiments of the invention, the front wall of the cartridge holder 204 is configured to extend upwardly above the top opening 2040 to shield the absorbent roller and the dusting shaft 203 from the front side. One end of the cartridge holder 204 is provided with a limiting seat configured to extend outwardly from the outside of the side wall of one end of the cartridge holder 204. The lower portion of the rear surface of the limiting shell is located in the same plane as the rear wall of the casing 204, and the upper portion of the rear surface is recessed toward the inside of the casing 204 to form a recess, and the recess is provided with an outwardly protruding buckle.

In some embodiments of the invention, the dust box may be configured to be withdrawn or inserted from the lateral direction of the indoor unit. Specifically, in this embodiment, the front portion of the casing of the indoor unit may be provided with a laterally extending, open-front sliding slot to allow the dust box to be inserted therein in a lateral direction, and the bottom surface of the sliding slot is provided with a card hole 2 for The card is connected. The chute may be configured such that its opening faces the front side to be closed by the front wall of the cartridge 204 of the dust box when the dust box is inserted. The sliding track (ie, the bottom surface) of the chute is located at the rear side thereof to engage the rear wall of the box base 204, and the card hole 2 of the bottom surface thereof is engaged with the buckle on the rear surface of the limiting case. Further, a buckle can be disposed on the end surface of the limiting shell on the side away from the cartridge holder 204 to facilitate the user to pull out the dust box.

Figure 12 is a schematic structural view of a dust removing assembly of a dust box 200 according to an embodiment of the present invention, in which a dust removing roller 201 and a dust removing shaft 203 and a transmission mechanism thereof are shown. Figure 13 is a schematic partial enlarged view of the partial dust removing assembly of Figure 12 showing a partial gear set. Figure 14 is a schematic partial enlarged view of the partial dust removing assembly of Figure 12 showing another portion of the gear set.

Referring to Figures 12 through 14, in some embodiments of the present invention, the cleaning device further includes a plurality of motors as driving means for driving the transmission rod 1030 and the dust removing roller and the dust removing shaft 203 to rotate. Specifically, the plurality of motors includes a first motor 501, a second motor 502, and a third motor 503. The output shafts of the first motor 501 and the second motor 502 are respectively disposed coaxially with the two transmission rods 1030, and can respectively controlly output two motive powers of opposite directions to drive the two transmission rods 1030 respectively. Pass or reverse.

The third motor 503 can be configured to drive the dust removing roller 201 and the dust removing shaft 203 to rotate synchronously through the gear set 603 so that the dust removing roller 201 and the dust removing shaft 203 move synchronously with respect to the comb teeth 2021, respectively. This prevents the dust roller brush 201 from rotating too fast, causing dust to accumulate thereon or on the dust collecting comb 202.

That is, the transmission rod 1030 of each of the filter cases 100 has independent drive motors (the first motor 501 and the second motor 502). The dust removing roller 201 and the dust removing shaft 203 are driven to rotate in the same direction by the same driving device (third motor 503). The dust removing brush 201 and the dust removing shaft 203 respectively transfer dust from the dust filter 300 through the brush of the dust removing brush 201 to the comb teeth 2021 and transfer the dust from the comb teeth 2021 to the dust collecting chamber via the fins 2031. Therefore, the synchronous rotation of the dust removing roller 201 and the dust removing shaft 203 by the same motor can ensure smooth connection of the dust transfer cleaning process, and avoid dust accumulation or idling of the dust removing member.

In other embodiments of the invention, the two drive rods 1030 can also be driven together by a single motor. Specifically, the two transmission rods 1030 can be respectively disposed coaxially with the two first synchronizing gears, and the two first synchronizing gears can respectively mesh with the two second synchronizing gears, and the two second synchronizing gears pass through a connecting rod. Coaxial settings. Thereby, the two transmission rods can be driven by the same motor through the four synchronizing gears, thereby achieving synchronous rotation.

In some embodiments of the invention, the sweeping device 10 also includes a gear set for transmission. Specifically, the gear set may be configured to drive the dust removing roller 201 and the dust removing shaft 203 to rotate synchronously under the driving of the third motor 503. The gear set includes a timing gear set 603 and a first gear 601 coupled to the absorbing roller and a second gear 602 coupled to the dust removing shaft 203. The input gear of the timing gear set 603 is configured to be coaxially coupled to the output shaft of the third motor 503, and the output gear thereof is configured to be coaxially coupled to the dust removing roller 201, thereby driving the dust removing roller 201 to rotate. The first gear 601 is disposed between the two rolling axes of the two-stage dust removing brush 201. The second gear 602 can be disposed between the two central shaft bodies 2030 of the two-stage dust removing shaft 203 and mesh with the first gear 601 to rotate the dust removing shaft 203 with the dust removing brush 201.

That is, the two-stage dust removing brush 201 and the dust removing shaft 203 are respectively a complete shaft cylinder, and the intermediate positions of the two are respectively provided with a first gear 601 and a second gear 602 for synchronous rotation. By the transmission between the two gears disposed at the intermediate position of the dust removing roller 201 and the dust removing shaft 203, the force of each of the dust removing roller 201 and the dust removing shaft 203 is relatively uniform along the axial direction thereof, thereby making both It can be rotated synchronously and smoothly to smoothly transfer dust into the dust collecting chamber.

The cleaning device 10 of the present invention can complete the synchronous rotation of the plurality of dust removing shaft bodies only by one motor and the corresponding gear set, thereby simplifying the overall structure of the cleaning device 10 and saving the internal space of the indoor unit to which the cleaning device 10 is installed. As a result, the internal structure of the indoor unit is more compact and the overall occupied space is small.

In some embodiments of the invention, the cleaning device 10 further includes a support plate. The support plate member has a plurality of receiving positions extending outward from a side of the plate surface and a through hole extending through the plate surface thereof for respectively mounting at least a portion of the gear set 603 and allowing the mounting on the other side of the plate surface thereof The output shaft of the three motor 503 passes. The support plate member may be disposed on the left or right side of the cleaning device 10. Preferably, the supporting plate member can be disposed close to the electronic control component such as the main control board of the indoor unit, thereby supplying power to the motor mounted thereon through a shorter and less electrical connection, thereby further improving the electrical structure inside the indoor unit. It is simple and distributed, which enhances the safety and stability of the indoor electrical control system.

In some embodiments of the invention, a plurality of motors can also be placed directly adjacent to the casing or screen box, thereby eliminating the need for additional support mechanisms, further simplifying the construction of the cleaning device.

The invention also provides an indoor unit of an air conditioner, wherein the cleaning device 10 and the corresponding filter screen are installed inside the indoor unit to clean the indoor ambient air.

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 cleaning device comprising:

At least one filter box disposed inside the indoor unit of the wall-mounted air conditioner, each of the filter box having an upper box body, a lower box body and an inner box body to install at least one flexible dust filter net of the indoor unit;

a dust box disposed under the at least one filter box, wherein the dust box is provided with a dust removing roller to clean the at least one dust filter;

The upper case is configured to extend forward from an inner side of the air inlet at the top of the indoor unit and then bend downward to extend to the front side of the indoor unit;

The lower case is disposed to be contoured to the rear of the upper case to define the dust filter between the lower case and the upper case;

The lower part of the inner box body is disposed with a transmission rod in a lateral direction, and is configured to drive the dust filter net to rotate around the transmission rod;

The inner box body is configured to have a bottom opening to expose at least a portion of an outer side surface of the dust filter net rotated to a lower portion thereof to contact the portion of the dust filter net with the dust removing roller brush;

The inner casing defines a front rail with the upper casing at a front thereof, respectively, and the lower casing at a rear thereof defines a rear rail so that the inside of each of the filter boxes A filter screen can be controlled to enter the rear rail from the front rail or into the front rail from the rear rail about the transmission rod.
A cleaning device according to claim 1, wherein

The filter box is two, configured to be arranged side by side in the lateral direction on the casing of the indoor unit, and spans the lateral dimension of the at least one filter box from below;

The dust filter nets are respectively disposed in the two filter box boxes, and each of the filter dust nets has a frame and two transmission racks respectively disposed on two lateral frames on the lateral outer side thereof; as well as

Two transmission gears are respectively disposed at two lateral end portions of each of the transmission rods in the filter box, and the two transmission racks of each of the filter screens are respectively configured to be respectively connected to the transmission rod The two transmission gears mesh.
The cleaning device according to claim 2, further comprising:

a driving device configured to drive the two transmission rods to rotate to drive the dust filter to rotate;

The ends of the drive rack are each configured to have a closed tooth shape such that when the filter screen is rotated at its longitudinal end to the drive shaft, the end of the drive rack is locked by the end Transmission gear;

The drive device is further configured to control the filter screen to be reversed when the drive rack is locked to the drive gear;

The filter box includes at least one travel switch disposed at a rear end portion of the upper casing located inside the air inlet to rotate the dust filter upward from the front rail to a rear end thereof Stop moving when the stroke switch is touched.
A cleaning device according to claim 2, wherein

The filter box further includes a bottom cover configured to be pivotally disposed at a lower end of the upper case;

The bottom cover is controllably rotatable rearwardly to a closed position to press the filter screen toward the drive rod to engage the drive rack with the drive gear;

The bottom cover can be controlled to be rotated forward to an open position to allow the filter screen to be detached from the screen box.
The cleaning device according to claim 3, wherein the dust box further comprises:

The dust removing roller brush is disposed at a top of the dust box in a lateral direction, and is configured to be controlled to rotate and contact at least a portion of the outer side surfaces of the two dust filtering nets to sweep the dust on the two dust filtering nets ;

a dust collecting comb disposed on the dust box and located under the dust removing brush, the dust collecting comb having a plurality of comb teeth to collect dust collected by the dust removing roller Comb on the teeth;

a dust removing shaft disposed laterally on the dust box and below the dust collecting comb to be separated from the dust removing brush by the plurality of comb teeth, the dust removing shaft being configured to be controlled to rotate The dust on the dust collecting comb is scraped off, and the scraped dust is pushed into a dust collecting chamber disposed at a lower portion of the dust box.
The cleaning device according to claim 5, wherein the driving device comprises:

a first motor and a second motor, wherein the output shafts are respectively disposed coaxially with the transmission rods of the two filter boxes, and respectively controllly outputting two motive powers of opposite directions to respectively drive The two transmission rods are forward or reversed;

a third motor configured to drive the dust removing roller and the dust removing shaft to rotate synchronously through a gear set to move the dust removing roller and the dust removing shaft relative to the comb teeth, respectively.
The cleaning device according to claim 5, wherein the dust box further comprises:

a cassette seat configured to extend in a lateral direction of the indoor unit, and having a bottom wall and extending a front wall, a rear wall and a side wall from a peripheral side edge of the bottom wall to form a dust collecting chamber having a top opening;

a cover having a bottom plate and a rear plate and a side plate extending upward from a peripheral side edge of the bottom plate, the bottom plate being erected on a top of the case base, and a cover portion of the top opening, the bottom plate being open A strip opening extending in a lateral direction to allow dust falling from the dust removing shaft to enter the dust collecting chamber via the strip opening.
A cleaning device according to claim 7, wherein

The dust collecting comb has a base plate and is disposed to be laterally disposed on the bottom plate of the cover and located behind the strip opening, the plurality of comb teeth from the base plate The surface is upwardly and bent forwardly toward the dust removing roller so that at least a portion of the teeth of the plurality of comb teeth are in contact with at least a portion of the dust removing roller and are located above the strip opening;

The dust removing shaft has a central shaft body and a plurality of fin portions extending outward from the central shaft body, and the fin portions are configured to be bent along an axial direction of the central shaft body to form a plurality of spaced convex portions And a plurality of spaced grooves, and scraping off dust on the plurality of comb teeth by the protrusions, collecting dust through the grooves and pushing the dust over the top opening;

The plurality of fins are symmetrically disposed on both sides of the central shaft body and are all located in the same plane to alternately contact the plurality of comb teeth when the dust removing shaft is controlled to rotate.
A cleaning device according to claim 3, wherein

The inner casing is engaged between the lower casing and the upper casing at an inner lower portion of the lower casing, and is configured to extend upward from a lower portion of the lower casing to a bend of the lower casing Folding so that both the front rail and the rear rail can accommodate at least half of the dust filter;

The portion of the upper case and the lower case located inside the air inlet defines a common track, and the travel switch is disposed at a rear end of the shared track.
An air conditioner indoor unit comprising the cleaning device according to any one of claims 1-9.