CN108105867B

CN108105867B - Cleaning device and air conditioner indoor unit with same

Info

Publication number: CN108105867B
Application number: CN201711386495.6A
Authority: CN
Inventors: 吴洪金; 朱振学; 孙运刚; 董元伟; 于永平; 陈会敏; 臧元强
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2020-04-24
Anticipated expiration: 2037-12-20
Also published as: WO2019120095A1; CN108105867A

Abstract

The invention provides a cleaning device, comprising: the filter screen box is arranged in the indoor unit and is provided with an upper box body, a lower box body and an inner box body; the dust removal box is arranged below the filter screen box, and a dust removal rolling brush is arranged on the dust removal box to clean the filter screen; the upper box body is configured to extend forwards from the inner side of an air inlet positioned at the top of the indoor unit and then bend and extend downwards to the front side inside the indoor unit; the lower box body is configured to be arranged behind the upper box body in a profiling way so as to limit the dust filter screen between the lower box body and the upper box body; the lower part of the inner box body is transversely provided with a transmission rod which is configured to drive the dust filter screen to rotate around the transmission rod; the inner box body is configured to be provided with an opening at the bottom so as to expose at least part of the outer side surface of the dust filter screen and enable the part of the dust filter screen to be in contact with the dust removal rolling brush; the inner box body respectively defines a front rail with the upper box body positioned in front of the inner box body and a rear rail with the lower box body positioned behind the inner box body, so that the dust filter screen can enter the rear rail from the front rail or enter the front rail from the rear rail by being controlled around the transmission rod.

Description

Cleaning device and air conditioner indoor unit with same

Technical Field

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

Background

In order to improve indoor air quality, a wall-mounted air conditioner indoor unit is generally provided with a filter device such as a filter screen and a dust removal device such as a brush for cleaning the filter device. However, the existing dust removing device has complex mechanism and complicated installation and disassembly steps. From this, the complex construction not only produces adverse effect to the air inlet of indoor set, still seriously influences user experience comfort level, reduces air conditioner performance.

Disclosure of Invention

An object of the present invention is to provide a cleaning device for removing dust on a filter screen.

A further object of the invention is to simplify the mounting and dismounting operations of the cleaning device.

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

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

the filter screen box is arranged in an indoor unit of a wall-mounted air conditioner and is provided with an upper box body, a lower box body and an inner box body so as to install at least one flexible dust filter screen of the indoor unit;

the dedusting box is arranged below the at least one filter screen box, and a dedusting roller brush is arranged on the dedusting box to clean the at least one filter screen; wherein

The upper box body is configured to extend forwards from the inner side of an air inlet at the top of the indoor unit and bend backwards and extend downwards to the front side of the inside of the indoor unit;

the lower box body is configured to be arranged behind the upper box body in a shape of a contour, so that the dust filter screen is limited between the lower box body and the upper box body;

a transmission rod is transversely arranged at the lower part of the inner box body and is configured to drive the dust filter screen to rotate around the transmission rod;

the inner box body is configured to be provided with an opening at the bottom so as to expose at least part of the outer side surface of the dust filter screen rotating below the inner box body, so that the part of the dust filter screen is in contact with the dust removal rolling brush; and

the inner box body respectively limits a front rail with the upper box body positioned in front of the inner box body and a rear rail with the lower box body positioned behind the inner box body, so that the dust filter nets in each filter screen box can be controlled to enter the rear rail from the front rail or enter the front rail from the rear rail around the transmission rod.

Furthermore, the two filter screen boxes are arranged on the casing of the indoor unit side by side along the transverse direction;

the two filter screen boxes are arranged on the casing of the indoor unit side by side along the transverse direction, and the filter screen boxes transversely span the transverse dimension of the at least one filter screen box from the lower part;

the two dust filtering nets are respectively arranged in the two filter screen boxes, and each dust filtering net is provided with a frame and two transmission racks respectively arranged on two longitudinal frames on the transverse outer sides of the frame; and

two transmission gears are respectively arranged at the two transverse side end parts of the transmission rod in each filter screen box, and the two transmission racks of each dust filter screen are configured to be respectively meshed with the two transmission gears of the transmission rod.

Further, the cleaning device further comprises:

the driving device is configured to drive the two transmission rods to rotate so as to drive the dust filter screen to rotate; wherein

The end parts of the transmission racks are all configured to be in a closed tooth shape, so that when the longitudinal end parts of the dust filter nets rotate to the transmission shaft, the end parts of the transmission racks are clamped on the transmission gears in a blocking mode;

the driving device is also configured to control the dust filter to reversely rotate when the transmission rack is clamped on the transmission gear; and

the filter screen box comprises at least one travel switch, and the travel switch is arranged at the rear end part of the upper box body which is positioned at the inner side of the air inlet, so that the dust filter screen stops moving when the dust filter screen upwards rotates from the front rail to the rear end of the dust filter screen touches the travel switch.

Further, the filter screen box also comprises a bottom cover which is configured to be arranged at the lower end of the upper box body in a pivoting way; and is

The bottom cover can be controlled to rotate backwards to a closed position so as to press the dust filter screen towards the transmission rod, so that the transmission rack is meshed with the transmission gear; and

the bottom cover is controllably rotated forward to an open position to allow disengagement of the dirt screen from the screen box.

Further, the dust removal box further comprises:

the dust removal rolling brush is arranged at the top of the dust removal box along the transverse direction, can be controlled to rotate and is in contact with at least part of the outer side surfaces of the two dust filter nets so as to sweep dust on the two dust filter nets;

the dust collecting comb is transversely arranged on the dust removing box and is positioned below the dust removing rolling brush, and the dust collecting comb is provided with a plurality of comb teeth so as to collect the dust swept by the dust removing rolling brush on the plurality of comb teeth; and

and the dust removing shaft is transversely arranged on the dust removing box and positioned below the dust collecting comb so as to be separated from the dust removing rolling brush through the plurality of comb teeth, and the dust removing shaft is configured to be controlled to rotate so as to scrape off dust on the dust collecting comb and push the scraped dust into a dust collecting cavity arranged at the lower part of the dust removing box.

Further, the driving device includes:

the output shafts of the first motor and the second motor are respectively configured to be coaxially arranged with the transmission rods of the two filter screen boxes, and can respectively and selectively output two kinds of motive power with opposite directions in a controlled manner so as to respectively drive the two transmission rods to positively or reversely rotate; and

and the third motor is configured to drive the dust removing rolling brush and the dust removing shaft to synchronously rotate through a gear set so that the dust removing rolling brush and the dust removing shaft respectively move relative to the comb teeth.

Further, the dust removal box further comprises:

a box seat which is configured to extend along the transverse direction of the indoor unit and is provided with a bottom wall, a front wall, a rear wall and a side wall, wherein the front wall, the rear wall and the side wall extend upwards from the peripheral side edge of the bottom wall so as to form a dust collection cavity with an open top;

the lid, have the bottom plate and certainly the back plate and the curb plate of week side edge upwards extension of bottom plate, the bottom plate frame is located the top of cassette holder to the closing cap part open-top, set up on the bottom plate along the bar opening of horizontal extension, in order to allow certainly dust that the dust removal axle falls down via the bar opening gets into the dust collection chamber.

Further, the dust collecting comb is provided with a base plate and is configured to be transversely arranged on the bottom plate of the box cover and positioned behind the strip-shaped opening, the plurality of comb teeth upwards bend and forwards extend towards the dust removing rolling brush from the upper surface of the base plate, so that at least part of tooth heads of the plurality of comb teeth are in contact with at least part of the dust removing rolling brush and are positioned above the strip-shaped opening;

the dust removal shaft is provided with a central shaft body and a plurality of fin parts extending outwards from the central shaft body, the fin parts are configured to be bent along the axial direction of the central shaft body to form a plurality of spaced bulges and a plurality of spaced grooves, dust on the plurality of comb teeth is scraped off through the bulges, the dust is collected through the grooves, and the dust is pushed to the upper part of the top opening; and

the plurality of fins are symmetrically arranged on two sides of the central shaft body and are all located in the same plane, so that the plurality of comb teeth are contacted alternately when the dust removal shaft rotates in a controlled mode.

Further, the inner box body is clamped at the lower part of the inner side of the lower box body between the lower box body and the upper box body and is configured to extend upwards from the lower part of the lower box body to the bent part of the lower box body, so that at least half of the dust filter screen can be accommodated in both the front rail and the rear rail; and

the upper box body and the lower box body are limited to a shared rail at the inner side of the air inlet, and the travel switch is arranged at the rear end of the shared rail.

The invention also provides an air conditioner indoor unit which comprises the cleaning device.

The cleaning device drives the dust filter screen to roll through the filter screen box and is continuously contacted with the dust removing brush in the dust removing box from two different directions and angles, so that the dust filter screen is cleaned.

Furthermore, the cleaning device is integrated in a single filter screen box through the dust filtering net and the movement mechanism for driving the dust filtering net to rotate, and the dust removing and collecting structure is integrated in an independent dust removing box, so that the cleaning device is modularized and has a more compact structure, the operation required by a user for installing and disassembling all parts of the cleaning device is simplified, and the use convenience of the cleaning device is enhanced.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural view of a sweeping device according to one embodiment of the present invention;

FIG. 2 is a schematic exploded view of a sweeping device according to one embodiment of the present invention;

FIG. 3a is a schematic block diagram of a screen box of a sweeping device according to one embodiment of the present invention;

FIG. 3b is a schematic exploded view of a screen box of a sweeping device according to one embodiment of the present invention;

FIG. 4a is a schematic block diagram of a screen box of a sweeping device according to an embodiment of the present invention, viewed from another direction, showing detail B of a dust screen;

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

FIG. 5 is a schematic exploded view of the dirt collection assembly of the dirt collection box according to one embodiment of the present invention, showing details D of the dirt collection roller, the dirt collection shaft, and the dirt collection comb;

FIG. 6 is a schematic block diagram of a stitch brush of a sweeping device according to one embodiment of the present invention, wherein detail A shows a protrusion;

FIG. 7 is a schematic partial enlarged view of detail A of the stitch roll shown in FIG. 6, showing the stitch groups and stitches;

FIG. 8 is a schematic, partially enlarged view of detail D of the dust collecting comb shown in FIG. 5, showing the base plate and the comb teeth;

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

fig. 10 is a schematic structural view of a dust box of the cleaning apparatus according to one embodiment of the present invention;

FIG. 11 is a schematic exploded view of a dust extraction cartridge of a cleaning apparatus according to one embodiment of the invention;

FIG. 12 is a schematic block diagram of a portion of a dusting assembly of a dusting cartridge according to an embodiment of the present invention showing details E and F of a dusting roller brush and a dusting shaft and their transmission mechanism;

FIG. 13 is a schematic, fragmentary, enlarged view of detail E of the portion of the dirt extraction assembly shown in FIG. 12, illustrating a portion of the gear set;

FIG. 14 is a schematic, fragmentary, enlarged view of detail F of the portion of the dirt extraction assembly shown in FIG. 12, showing another portion of the gear set.

Detailed Description

The cleaning device can be installed inside the indoor unit of a wall-mounted air conditioner to install and clean the dust filter 300 of the indoor unit. The dust filter 300 may be one or more, and may be a flexible dust filter 300 having a certain elasticity, so that the installation position of the indoor unit is more flexible.

Fig. 1 is a schematic configuration diagram of a cleaning apparatus according to an embodiment of the present invention. Fig. 2 is a schematic exploded view of a sweeping device according to one embodiment of the present invention.

Referring to fig. 1 and 2, the sweeping device may include at least one filter screen cartridge 100 and a dust removal cartridge 200. At least one of the filter screen box 100 and the dust removing box 200 may be separate modules, and may be fixed to a casing of the indoor unit.

Fig. 3a is a schematic structural view of a screen box 100 of a cleaning apparatus according to an embodiment of the present invention. Fig. 3b is a schematic exploded view of a sieve box 100 of a sweeping device according to one embodiment of the present invention.

Referring to fig. 3a and 3b, each screen box 100 may have an upper box 101, a lower box 102 and an inner box 103 to mount at least one flexible dust screen 300 of the indoor unit. The dust removing box 200 may be disposed below the at least one filter screen box 100 and cross the transverse dimension of the at least one filter screen box 100 from below, and a dust removing roller brush 201 may be disposed on the dust removing box 200 to clean the at least one filter screen 300. That is, when there are a plurality of filter cartridges 100, the dust removing cartridge 200 and the dust removing roller brush 201 provided thereon may cover all the filter cartridges 100 at least in the lateral direction to clean the dust filter nets 300 in all the filter cartridges 100. Further, the dust removing box 200 can press at least one filter screen box 100 from below, so that the dust removing box 200 can limit a plurality of filter screen boxes 100, and the stability of the whole cleaning device (especially when a plurality of filter screen boxes 100 are provided) is enhanced.

The upper casing 101 of the filter screen box 100 may be configured to extend forward from the inside of the air inlet at the top of the indoor unit and then bend and extend downward to the front inside of the indoor unit. The lower case 102 is configured to be disposed behind the upper case 101 in a contour shape to define the dust screen 300 between the lower case 102 and the upper case 101. A transmission rod 1030 is transversely disposed at a lower portion of the inner case 103, and configured to drive the dust screen 300 to rotate around the transmission rod 1030. In particular, the inner box 103 may define a front track with the upper box 101 in front of it and a rear track with the lower box 102 behind it, respectively, so that the dust screens 300 in each screen box 100 may be controlled to enter the rear track from the front track or the front track from the rear track around the drive rod 1030. Specifically, the inner box 103 is clamped between the lower box 102 and the upper box 101 at the inner lower part of the lower box 102, and is configured to extend upward from the lower part of the lower box 102 to the bent part of the lower box 102, so that the front rail and the rear rail can both accommodate at least half of the dust filter 300.

That is, the number and the installation positions of the filter screen boxes 100 and the dust filter screens 300 correspond to each other, and each dust filter screen 300 is rotatably wound around the driving lever 1030 of one filter screen box 100. The screen box 100 defines a continuous track through the upper 101, lower 102 and inner 103 boxes to define and guide the movement of the dust screen 300. A part of the upper case 101 and a part of the lower case 102 inside the housing are far apart, that is, a large gap is formed between the upper case 101 and the lower case 102 at the lower portion of the filter screen box 100, so that the inner case 103 is fastened to the lower case 102 therebetween to mount the transmission rod 1030. Further, the middle portion or other positions deviating from the middle portion of the inner box 103 may be provided with additional ribs or webs or the like to provide additional support for the filter screen.

The inner case 103 divides a larger gap space between the upper case 101 and the lower case 102 into two smaller spaces, and the front surface and the rear surface thereof may be respectively formed with corresponding guide rails or ribs to form two rails (front rail and rear rail) with the rear surface of the upper case 101 and the front surface of the lower case 102, respectively. Further, the front and rear rails are engaged under the driving lever 1030 installed at the inner case 103 to form a continuous rail allowing at least one dust filter 300 to be turned, thereby reducing the volume of the filter cartridge 100 and making it more compact and more suitable for use in an indoor unit of a household wall-mounted air conditioner.

The portions of the upper and

lower cases

101 and 102 located inside the intake vent define a common rail. That is, there may be a small gap between the upper case 101 and the lower case 102 at a portion inside the intake vent to directly form the common rail. Thus, when the dust screen 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 of the front rail or the upper end of the rear rail at the same time, so that the common rail can play a role of continuing the rail in the forward or backward rotation process of the dust filter 300, thereby saving the manufacturing cost of the filter box, and enabling the filter box to have a compact structure and a small occupied space.

Specifically, in some embodiments of the present invention, when the dust filter 300 slides upward and rearward from the front rail into the common rail, the upper side of the dust filter 300 may be disposed to slidably fit into the upper side chute of the common rail, and the lower side of the dust filter 300 may be disposed to slidably abut against the upper end surface of the lower side chute wall of the common rail, respectively. Accordingly, when the dust filter 300 slides upward and rearward from the rear rail into the common rail, the lower side of the dust filter 300 is slidably inserted into the lower chute of the common rail, and the upper side of the dust filter 300 slidably abuts against the lower end surface of the upper chute wall of the common rail. Further, the inner case 103 may be configured to be open at the bottom to expose at least a portion of the outer side surface of at least one dust filter 300 rotated therebelow, so that the portion of the dust filter 300 is in contact with the dust removing drum brush 201. That is, most of the mesh cloth of the dust filter 300 is located inside the filter box 100 and inside the frame defined by the upper box 101 and the lower box 102, so as to avoid interference with other structures inside the indoor unit, thereby ensuring the normal operation of the heat exchange system and the cleaning device of the indoor unit. The bottom opening of the inner case 103 allows the bottom of the dust screen 300 in any rotational position to be exposed downward to the outside of the filter cartridge 100, thereby facilitating the contact between the rotating dust screen 200 and a dust removing or sweeping device provided in the dust removing cartridge 200 to effect the cleaning of the filter screen.

The cleaning device of the invention integrates one or more dust filtering nets 300 and a movement mechanism for driving the dust filtering nets to rotate into one or more independent filtering net boxes 100, and integrates a dust removing and collecting structure into an independent dust removing box 200, so that the cleaning device is modularized and has a more compact structure, the operation required by a user for installing and disassembling all parts of the cleaning device is simplified, and the use convenience of the cleaning device is enhanced.

In some embodiments of the present invention, referring to fig. 1, the filter net case 100 and the dust filter net 300 may be two each to cover left and right portions in a lateral direction of the indoor unit, respectively. Specifically, the screen cartridges 100 may be configured to be disposed side by side in the lateral direction inside the casing of the indoor unit. Accordingly, two dust screens 300 may be respectively provided in the two screen cartridges 100. Each dust screen 300 may have a frame and two driving racks 301 respectively disposed at two longitudinal frames at the lateral outer sides thereof. It should be noted that, as will be understood, the longitudinal frame herein refers to a frame extending in the longitudinal direction on the left and right sides of the dust screen 300 when the dust screen is naturally unfolded in a plane. The lateral both side ends of the driving lever 1030 of each filter screen box 100 are provided with two driving gears 1031, respectively, and the two driving racks 301 of each dust filter screen 300 are configured to be engaged with the two driving gears 1031 of the driving lever 1030, respectively, so that the dust filter screens 300 in the respective filter screen boxes 100 are rotated synchronously or asynchronously.

Fig. 4a is a schematic structural view of a filter cartridge 100 of a cleaning apparatus according to an embodiment of the present invention, viewed from another direction. Fig. 4b is a schematic partial enlarged view of the flexible dust screen 300 shown in fig. 4 a.

Referring to fig. 4a and 4b, in some embodiments of the present invention, the end of the driving rack is configured to have a closed tooth shape such that the dust filter 300 is caught to the driving gear by the end of the driving rack when the longitudinal end thereof is rotated to the driving shaft. Specifically, the closed tooth shape may be directly and symmetrically disposed at the end portions of the two transmission racks, or may be disposed on two transversely extending frames of the dust filter 300 respectively located at the longitudinal end portions (i.e., the two ends in the rotation direction), and the two transversely extending frames partially constitute the end portions of the two transmission racks.

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

In some embodiments of the present invention, the filter screen box 100 may further include at least one travel switch disposed at a rear end portion of the upper box portion inside the air inlet, so that the dust filter screen 300 stops moving when it rotates upward from the front rail to the rear end portion thereof touches the travel switch. Specifically, a travel switch may be provided in the upper side chute of the common rail away from the ends of the front and rear rails to stroke the dust screen 300 after it has entered the common rail from the front rail.

The default position of the dust screen 300 at rest is inside the panel and the air inlet to achieve the best air filtering effect. When the dust filter 300 is in the default position, the end of the drive rack with the closed tooth shape at the lower end thereof can be locked to the side of the drive gear adjacent to or near the rear rail.

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

when the cleaning device (or the driving device thereof) receives the command of cleaning the dust filter 300, the driving device can be started under the control of the indoor unit main control panel and other devices, so as to drive the transmission rod 1030 to rotate in the first direction to further drive the dust filter 300 to rotate downwards and backwards from the panel and the inner side of the air inlet, so that at least part of the dust filter 300 gradually separates from the front rail and enters the rear rail.

When the mesh of the dust filter 300 is completely separated from the front rail, the other end of the driving rack (i.e., the end located at the lower end of the driving rack) may be locked to the side of the driving gear near or adjacent to the front rail. At this time, the driving gear is also locked by the driving rack and the state of the driving gear not rotating can be fed back to the main control board of the indoor unit by the driving device, and then the driving device can change the direction of the output force under the control of the main control board, so that the driving rod 1030 is controlled to rotate in the second direction, and the dust filter 300 is driven to enter the front rail from the rear rail.

When the net cloth of the dust filter 300 is completely separated from the rear rail and is reset to the default position, the transmission rack is clamped with the transmission gear again. Meanwhile, the end of the dust filter 300, which is located in the common rail at this time, may collide with the travel switch, so as to be fed back to the main control board to controllably stop the driving device, thereby completing one rotation cycle of the dust filter 300. In each rotation period, the dust filter 300 will make two different contacts with the dust removing roller brush 201 in the dust removing box 200 when passing through the lower part of the transmission rod 1030 in two rotation times, so as to clean the dust filter 300.

In some embodiments of the present invention, referring to fig. 1 and 2, each filter screen cartridge 100 may further include a bottom cover 104 configured to be pivotably disposed at a lower end of the upper housing 101. The bottom cover 104 is controlled to rotate back to a closed position to compress the dust screen 300 toward the drive link 1030 to engage the drive rack 301 with the drive gear 1031. Bottom cover 104 may also be controlled to rotate forward to an open position to allow dust screen 300 to be disengaged from filter cartridge 100. That is, when the indoor unit and the cleaning apparatus are normally operated, the bottom cover 104 rotates backward to cover the frame of the dust filter 300, so that the driving racks 301 at both sides thereof are engaged with the driving gears 1031, thereby ensuring the stable rotation of the dust filter 300. When the dust filter 300 needs to be removed for replacement or cleaning, the bottom cover 104 can be controlled to rotate forward and upward to disengage the driving rack 301 and the driving gear 1031, so that the user can conveniently extract the dust filter 300 from the lower part of the filter box 100, and the replacement operation of the dust filter 300 is simplified. Further, the inside of bottom cover 104 may be provided with rails or guides, respectively, to ensure smooth sliding and rotation within filter cartridge 100 while covering dust screen 300.

Fig. 5 is a schematic exploded view of a dust removing assembly of the dust removing box 200 according to one embodiment of the present invention, in which a dust removing roller brush 201, a dust removing shaft 203, and a dust collecting comb 202 are shown.

Referring to fig. 5, in some embodiments of the present invention, the dust box 200 may include: a dust removing roller brush 201, a dust collecting comb 202, a dust removing shaft 203, and a dust collecting chamber formed at the lower portion of the dust removing box 200. The dust box 200 may have a top opening 2040 formed above the dust collection chamber to allow dust in the filter cartridge 100 to pass downwardly into the dust collection chamber through the top opening 2040.

The dust removing roller brush 201 may be disposed at the top of the dust removing box 200 in a transverse direction, and configured to be controlled to rotate and contact with at least a portion of an outer side surface of the dust filter 300 to sweep dust on the dust filter 300. That is, the top of the dust box 200 may be provided with a dust removing roller brush 201 for contacting the dust screen 300 exposed outside the filter screen box 100. The peripheral side of the dust-removing rolling brush 201 can be surrounded by the bristles which are arranged in a crossed and inclined manner, so that the bristles can continuously contact the dust-filtering net 300 from a plurality of angles while rotating, and a better dust-removing effect can be realized.

Fig. 6 is a schematic configuration view of a stitch brush 105 of a sweeping device according to an embodiment of the present invention, in which a protrusion is shown. Fig. 7 is a schematic partial enlarged view of the stitch roll shown in fig. 6 showing the stitch groups and stitches.

Referring to fig. 6 and 7, in some embodiments of the invention, screen box 100 may also have at least one pin brush 105 that fits over drive rod 1030. The pin brush 105 may have a plurality of protrusions formed thereon, and the protrusions are configured to contact the dust filter 300 and push the dust attached to the dust filter 300 to the outside of the dust filter 300, so that the dust is separated from the dust filter 300, thereby facilitating the sweeping of the dust removing brush 201.

That is, the cleaning device can loosen the dust adsorbed on the dust filter 300 by the pin rolling brush 105 and at least partially separate from the mesh of the dust filter 300, push the dust attached in the mesh of the dust filter 300 to the outside of the dust filter 300 by the protrusion of the pin rolling brush 105 in the "ejecting" manner, and then sweep and collect the dust pushed to the position where the mesh is substantially separated by the dust removing rolling brush 201.

In some embodiments of the present invention, the plurality of protrusions of the pin rolling brush 105 may include a plurality of rows of pin groups 1050 spaced along the axial direction of the pin rolling brush 105, each of the pin groups 1050 includes a plurality of pins 1051 annularly disposed on the outer circumferential side of the pin rolling brush 105, and the pin rolling brush 105 is configured to rotate under control to drive the dust filter mesh 300 to roll circularly, such that the mesh fabric rolls continuously and contacts the plurality of pins 1051. Further, the plurality of stitches 1051 in each group of stitch groups 1050 extend radially and obliquely outward from the outer peripheral side of the stitch roller 105, and the inclination directions of the stitches 1051 in two adjacent groups of stitch groups 1050 in the axial direction of the stitch roller 105 are opposite.

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

In other embodiments of the present invention, the protrusions may be configured in other configurations having rugged surfaces.

Figure 8 is a schematic, partially enlarged view of the dirt collection comb 202 shown in figure 5 showing the base plate 2020 and the comb teeth 2021.

The dust collecting comb 202 may be transversely disposed on the dust removing box 200 and located below the dust removing roller 201, and the dust collecting comb 202 has a plurality of comb teeth 2021 to collect the dust swept by the dust removing roller 201 on the plurality of comb teeth 2021. That is, the dust-removing roller brush 201 positioned at 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 positioned therebelow and fixedly disposed. The dust collection comb 202 can further directly block the scraped dust in the gap between the plurality of comb teeth 2021. Therefore, the dust is transferred from the dust collecting roller brush 201 to the dust collecting comb 202, and no dust is raised during the transfer process, and the dust collecting roller brush 201 scraped clean by the dust collecting comb 202 can continuously scrape and collect the dust on the dust filter 300.

Specifically, referring to fig. 8, the dust collection comb 202 may have a base plate 2020 and be configured to be disposed on the dust box 200 in a lateral direction and to be located behind the bar-shaped opening 2050, and the plurality of comb teeth 2021 extend upward from the upper surface of the base plate 2020 and are bent forward toward the dust removal brush roll 201 such that at least part of the tooth heads of the plurality of comb teeth 2021 is held in contact with at least part of the dust removal brush roll 201 and is located above the bar-shaped opening 2050.

The dust removing shaft 203 may be transversely disposed on the dust removing box 200 and located below the dust collecting comb 202 to be spaced apart from the dust removing brush roll 201 by a plurality of comb teeth 2021, thereby preventing generation of dry involving dust. The dust removing shaft 203 is configured to be controllably rotated to scrape off dust on the dust collecting comb 202 and to push the scraped dust into a dust collecting chamber provided at a lower portion of the dust removing box 200. That is, the dust jammed between the comb teeth 2021 is scraped off by the dust removing shaft 203 which continuously and synchronously or asynchronously rotates with the dust removing roller 201. At this time, since the dust has been transferred to the dust box 200 at the lower portion of the cleaning apparatus while being located at the lower region of the indoor unit, which is far from the fan, and since the dust has been confined by the dust collection comb 202 and the dust removal shaft 203 in a space having a small air flowability, which is relatively isolated from the air blowing region of the indoor unit, at the lower side of the dust collection comb 202 (corresponding to being shielded by the dust collection comb 202), the dust can be directly pushed by the dust removal shaft 203 to fall into the dust collection chamber without raising the dust.

FIG. 9 is a schematic, partially enlarged view of the dust extraction shaft 203 of FIG. 5, showing the central shaft body 2030 and the fins 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 protruding outward from the central shaft body 2030, the fin portions 2031 are configured to be bent in an axial direction of the central shaft body 2030 to form a plurality of spaced protrusions and a plurality of spaced grooves, and to scrape off dust on the plurality of comb teeth 2021 by the protrusions, to collect the dust by the grooves, and to push the dust to an opening above the dust collecting chamber.

The dust removing shaft 203 may be disposed below the adsorption drum brush and spaced apart from the adsorption drum brush by a plurality of comb teeth 2021. The plurality of fins 2031 are symmetrically disposed on both sides of the central shaft 2030 and 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 may be divided into two groups, and each of the two groups of fins 2031 is disposed on one of the axial cross sections of the central shaft 2030 and is disposed symmetrically with respect to the axis of the central shaft 2030. Each set of fins 2031 may be formed by a single integral fin 2031 axially spanning the dust removal shaft 203, or each set of fins 2031 may be formed by multiple segments of fins 2031 spaced axially along the dust removal shaft 203. Thereby, one or more fins 2031 on both sides of the central shaft 2030 can alternately turn to the upper sweeping comb 2021 and push the scraped dust into the dust collecting chamber below.

In some embodiments of the present invention, the dust removing roll brush 201 for sweeping dust may be directly disposed to traverse the indoor unit while contacting the two dust filter nets 300 to adsorb dust. Accordingly, in some embodiments of the present invention, the dust removing roller brush 201 and the dust removing shaft 203 may be provided in two segments, which correspond to the dust filters 300 in the two filter cartridges 100. Specifically, referring to fig. 9, the two-stage dust removing rolling brush 201 may have two spaced rolling shafts coaxially and fixedly connected by a connecting shaft. Accordingly, the plurality of fins 2031 on the two-stage dust removing shaft 203 may be spaced in the axial direction of the dust removing shaft 203, and the axial center of the dust removing shaft 203 is left to form two regions of the left and right fins 2031.

Fig. 10 is a schematic structural view of a dust box 200 of a cleaning apparatus according to an embodiment of the present invention. Fig. 11 is a schematic exploded view of a dust box 200 of a sweeping apparatus according to an embodiment of the present invention.

Referring to fig. 10 and 11, in some embodiments of the invention, the dust removal box 200 may further include a box base 204 and a box cover 205. The holder 204 may be configured to extend in the transverse direction of the indoor unit and has a bottom wall and front, rear and side walls extending upwardly from the peripheral side edges of the bottom wall to form the aforementioned dust collecting chamber having the top opening 2040. The box cover 205 may have a bottom plate and a rear plate and side plates extending upward from the peripheral side edge of the bottom plate, the bottom plate is erected on the top of the box base 204 and covers a part of the top opening 2040, and the bottom plate is provided with a strip-shaped opening 2050 extending in the transverse direction to allow dust falling from the dust removing shaft 203 to enter the dust collecting cavity through the strip-shaped opening 2050.

That is, the box base 204 is configured to extend along the transverse direction of the indoor unit and has a wider upward top opening 2040 in a rectangular shape, and the box cover 205 is erected at the top opening 2040 of the box base 204 to cover at least a part of the top opening 2040. Further, the box cover 205 is provided with a narrow strip-shaped opening 2050, and the strip-shaped opening 2050 is configured to be positioned right below the dust removing shaft 203. The dimension of the strip-shaped opening 2050 in the length direction and the width direction is respectively slightly larger than the axial dimension of the dust removing shaft 203 and the distance between the outer end edges of the two side fins 2031 when the fins 2031 rotate to be approximately parallel to the plane of the strip-shaped opening 2050, so that dust scraped by the fins 2031 can enter the cartridge base 204 through the strip-shaped opening 2050 when falling at any angle in the rotation process of the dust removing shaft 203.

In some embodiments of the present invention, the side plates of the box cover 205 are oppositely provided with a plurality of through holes, that is, the left and right lateral ends of the box cover 205 are correspondingly provided with a plurality of through holes to allow the dust removing rolling brush 201 and the dust removing shaft 203 to be rotatably installed therein. Further, the lower surface of the base plate 2020 of the dust collecting comb 202 can be fixed to the upper surface of the box cover 205 at the rear side of the strip-shaped opening 2050, so that the comb teeth 2021 for collecting dust can be located right above the strip-shaped opening 2050, which facilitates the dust collecting box to collect the dust scraped off, i.e. further ensures that the dust scraped off can fall into the box base 204 through the strip-shaped opening 2050.

In some embodiments of the present invention, the front wall of the cartridge holder 204 is configured to extend upward above the top opening 2040 to shield the adsorption drum brush and the dust removal shaft 203 from the front side. One end of the cartridge holder 204 is provided with a stopper housing configured to extend outward from the outside of the sidewall of the one end of the cartridge holder 204. The lower part of the rear surface of the limiting shell and the rear wall of the box base 204 are located in the same plane, the upper part of the rear surface is sunken towards the inside of the box base 204 to form a concave table, and a buckle protruding outwards is arranged on the concave table.

In some embodiments of the present invention, the dust box may be configured to be drawn out or inserted from a lateral direction of the indoor unit. Specifically, in this embodiment, the front part of the casing of the indoor unit may be provided with a sliding chute extending in the transverse direction and having a forward opening to allow the dust removing box to be inserted into the sliding chute in the transverse direction, and the bottom surface of the sliding chute is provided with a clamping hole 2 to be clamped with the clamp. The chute may be configured such that its opening faces the front side to be closed by the front wall of the cartridge holder 204 of the dust-removing cartridge when the dust-removing cartridge is inserted. The sliding track (i.e. the bottom surface) of the sliding groove is located at the rear side thereof to engage with the rear wall of the cassette holder 204, and to engage with the engaging hole 2 at the bottom surface thereof with the engaging buckle on the rear surface of the position-limiting housing. Further, a buckle may be disposed on an end surface of the limiting shell on a side far from the box base 204, so that a user can pull out the dust removal box.

Fig. 12 is a schematic structural view of a part of a dust removing assembly of the dust removing box 200 according to an embodiment of the present invention, in which a dust removing roller brush 201 and a dust removing shaft 203 and a transmission mechanism thereof are shown. FIG. 13 is a schematic, fragmentary enlarged view of a portion of the dirt extraction assembly shown in FIG. 12, illustrating a portion of the gear set. FIG. 14 is a schematic, fragmentary enlarged view of a portion of the dirt extraction assembly shown in FIG. 12, illustrating another portion of the gear set.

Referring to fig. 12 to 14, in some embodiments of the present invention, the sweeping device further includes a plurality of motors as driving means to drive the driving rod 1030 and the dust removing roll brush 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 configured to be coaxial with the two transmission rods 1030, and can be respectively controlled to alternatively output two motive powers with opposite directions so as to respectively drive the two transmission rods 1030 to forward or reverse.

The third motor 503 may be configured to drive the dust removing rolling brush 201 and the dust removing shaft 203 to rotate synchronously through the gear set 603, so that the dust removing rolling brush 201 and the dust removing shaft 203 move synchronously relative to the comb 2021, respectively. Thereby preventing the dust removing roller brush 201 from rotating too fast to cause dust to be accumulated thereon or on the dust collecting comb 202.

That is, the drive rod 1030 of each filter screen box 100 has independent drive motors (first motor 501 and second motor 502). The dust removing rolling brush 201 and the dust removing shaft 203 are driven by the same driving device (third motor 503) to rotate synchronously. The dust removing roller brush 201 and the dust removing shaft 203 transfer dust from the dust filter net 300 to the comb 2021 via the fur brush of the dust removing roller brush 201 and transfer dust from the comb 2021 to the dust collecting chamber via the fin 2031, respectively. Therefore, the dust removal rolling brush 201 and the dust removal shaft 203 are driven by the same motor to synchronously rotate, so that the connection of the dust transfer cleaning process is ensured to be smoother, and the dust accumulation or the idling of dust removal components is avoided.

In other embodiments of the invention, the two transmission rods 1030 can also be driven jointly by one motor. Specifically, the two transmission rods 1030 can be respectively coaxially disposed with the two first synchronous gears, the two first synchronous gears can be respectively engaged with the two second synchronous gears, and the two second synchronous gears can be coaxially disposed through a connection rod. Therefore, the two transmission rods can be driven by the same motor through the four synchronous gears, so that synchronous rotation is realized.

In some embodiments of the present invention, sweeper 10 further includes a gear set for transmission. Specifically, the gear set may be configured to drive the dust removing rolling brush 201 and the dust removing shaft 203 to rotate synchronously under the driving of the third motor 503. The gear set comprises a speed regulating gear set 603, a first gear 601 connected with the adsorption rolling brush and a second gear 602 connected with the dust removing shaft 203. An input gear of the speed-adjusting gear group 603 is configured to be coaxially connected with an output shaft of the third motor 503, and an output gear thereof is configured to be coaxially connected with the dust-removing drum brush 201, thereby driving the dust-removing drum brush 201 to rotate. The first gear 601 is arranged between two sections of rolling shafts of the two sections of dust removing rolling brushes 201. The second gear 602 may be disposed between the two central shaft bodies 2030 of the two segments of the dust removing shaft 203 and engaged with the first gear 601 so that the dust removing shaft 203 rotates with the dust removing roller brush 201.

That is, the two-segment dust removing rolling brush 201 and the dust removing shaft 203 are respectively a complete shaft cylinder, and a first gear 601 and a second gear 602 for synchronous rotation are respectively arranged at the middle positions of the two segments. Through the transmission between two gears that set up in the intermediate position of dust removal round brush 201 and dust removal axle 203 for the atress of dust removal round brush 201 and dust removal axle 203 along its axial separately is all comparatively even, and then makes the two all can be synchronous and rotate steadily, in order to transfer the dust to the collection dirt intracavity steadily.

The cleaning device 10 of the invention can complete the synchronous rotation of a plurality of dust removal shaft bodies only through one motor and a corresponding gear set, thereby simplifying the overall structure of the cleaning device 10 and further saving the internal space of the indoor unit provided with the cleaning device 10, thereby leading the internal structure of the indoor unit to be more compact and the overall occupied space to be smaller.

In some embodiments of the present invention, sweeping device 10 further comprises a support plate. The support plate has a plurality of receiving positions formed by extending outward from one side of the plate surface and a through hole penetrating through the plate surface, so as to be respectively used for mounting at least part of the gear set 603 and allowing the output shaft of the third motor 503 mounted on the other side of the plate surface to pass through. The support plate may be provided on the left or right side of the cleaning apparatus 10. Preferably, the supporting plate can be arranged close to an electric control element such as a main control panel of the indoor unit, so that the motor mounted on the supporting plate can be powered by shorter and fewer electric connecting wires, the electric structure in the indoor unit is simpler and is distributed and concentrated, and the safety and the stability of an electric control system of the indoor unit are enhanced.

In some embodiments of the present invention, a plurality of motors can also be directly and closely arranged on the housing or the filter screen box, so that an additional supporting mechanism is not required, and the structure of the cleaning device is further simplified.

The invention also provides an indoor unit of an air conditioner, wherein the cleaning device 10 and a corresponding filter screen are arranged in the indoor unit so as to clean indoor ambient air.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A sweeping device comprising:

The dust removal rolling brush is arranged at the top of the dust removal box along the transverse direction and is configured to be controlled to rotate and contact with at least part of the outer side surface of the dust filter screen so as to sweep dust on the dust filter screen;

the inner box body and the upper box body positioned in front of the inner box body respectively define a front track, and the lower box body positioned in back of the inner box body define a back track, so that the dust filter screen in each filter screen box can enter the back track from the front track or the front track from the back track in a controlled manner around the transmission rod; wherein, the dust removal box still includes:

a dust removing shaft disposed on the dust removing box in a transverse direction and below the dust collecting comb to be spaced apart from the dust removing roll brush by the plurality of comb teeth, the dust removing shaft being configured to be controllably rotated to scrape off dust on the dust collecting comb and to push the scraped dust into a dust collecting chamber disposed at a lower portion of the dust removing box;

a box seat which is configured to extend along the transverse direction of the indoor unit and is internally provided with a dust collecting cavity with an open top; and

the box cover is partially covered on the top opening and is provided with a strip-shaped opening extending along the transverse direction so as to allow dust falling from the dust removal shaft to enter the dust collection cavity through the strip-shaped opening; wherein

The dust collection comb is provided with a base plate and is configured to be transversely arranged on the bottom plate of the box cover and positioned behind the strip-shaped opening, the comb teeth upwards extend towards the dust removal rolling brush from the upper surface of the base plate in a bending mode, and at least part of tooth heads of the comb teeth are in contact with at least part of the dust removal rolling brush and are positioned above the strip-shaped opening;

2. The sweeping device as set forth in claim 1, wherein

3. The sweeping device according to claim 2, further comprising:

4. The sweeping device of claim 2, wherein

The filter screen box also comprises a bottom cover which is configured to be arranged at the lower end of the upper box body in a pivoting way; and is

5. The sweeping device of claim 3, wherein

The dust removing rolling brush is configured to be controlled to rotate and contact with at least partial outer side surfaces of the two dust filter nets so as to sweep dust on the two dust filter nets.

6. The sweeping device according to claim 5, said driving means comprising:

7. The sweeping device according to claim 1,

the box seat is provided with a bottom wall, and a front wall, a rear wall and a side wall which extend upwards from the peripheral side edge of the bottom wall so as to form the dust collection cavity with the top opening;

the lid has the bottom plate with certainly the all side edges of bottom plate upwards extend's back plate and curb plate, the bottom plate frame is located the top of cassette holder to the closing cap part open-top, seted up on the bottom plate along horizontal extension the bar opening, in order to allow certainly dust that the dust removal axle falls down via the bar opening gets into the dust collection chamber.

8. The sweeping device according to claim 3,

the inner box body is clamped at the lower part of the inner side of the lower box body between the lower box body and the upper box body and is configured to extend upwards from the lower part of the lower box body to the bent part of the lower box body, so that at least half of the dust filter screen can be contained in both the front rail and the rear rail; and

9. An indoor unit of an air conditioner, comprising the sweeping device according to any one of claims 1 to 8.