CN217357213U - Air conditioner indoor unit - Google Patents

Abstract

The utility model discloses an air-conditioning indoor unit, which comprises a shell, a filter screen device and a dust removal device, wherein the top of the shell is provided with an air inlet; the filter screen device is arranged in the shell and covers the air inlet, the filter screen device comprises a support, a filter screen arranged on the support and a roller rotatably arranged in the support, the filter screen comprises a net rack and a filter screen, a hollow part is arranged in the central area of the net rack, rack parts are respectively arranged on the net rack along the left side edge and the right side edge of the hollow part, the left side edge and the right side edge of the net rack respectively extend outwards to form flanges, a plurality of notches are sequentially arranged on each flange at intervals along the vertical direction, and the positions of the notches on the flanges on the left side and the right side of the net rack are in one-to-one correspondence; the filter screen is arranged on the net rack and covers the hollow part; gears which are matched and meshed with the rack parts are respectively arranged at the two ends of the roller, so that the roller drives the filter screen to reciprocate along a preset path; the dust removal device is arranged on the front side of the bracket and used for cleaning a filter screen in a way.

Description

Air conditioner indoor unit

Technical Field

The utility model relates to an air conditioning technology field especially relates to an indoor unit of air conditioner.

Background

The air inlet of the existing wall-mounted air conditioner indoor unit is provided with a filter screen, and the filter screen is used for filtering air sucked into the indoor unit, so that the indoor air quality is improved, and the normal operation of the indoor unit is ensured. In order to avoid secondary pollution of dust on the filter screen to indoor air, a user needs to clean the dust on the filter screen regularly, but the filter screen needs to be manually detached before cleaning, and the process is complicated.

Therefore, the rotatable rolling brush is arranged inside the existing part of indoor units, the rolling brush is driven to reciprocate along a preset path so as to be in contact with the filter screen, the rolling brush is used for automatically cleaning dust on the surface of the filter screen and then uniformly collecting the dust, the automatic cleaning of the dust on the surface of the filter screen is realized, and the operation is intelligent and convenient. However, in the prior art, the flexibility of the filter screen is poor, the filter screen is subjected to large resistance in the reciprocating motion process in an indoor unit, the motion stability is influenced, and noise is easy to generate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an indoor unit of air conditioner, its compliance through the increase filter screen reduces the moving resistance of filter screen in the indoor unit, improves the motion stability of filter screen, the production of noise abatement.

In order to achieve the above object, the utility model provides an indoor unit of air conditioner, include:

the top of the shell is provided with an air inlet;

the filter screen device is arranged in the shell and covers the air inlet, the filter screen device comprises a support, a filter screen arranged on the support and a roller rotatably arranged in the support, the filter screen comprises a net rack and a filter screen, a hollow part is formed in the central area of the net rack, rack parts are respectively arranged on the net rack along the left side edge and the right side edge of the hollow part, the left side edge and the right side edge of the net rack extend outwards respectively to form flanges, a plurality of notches are arranged on each flange at intervals in sequence along the vertical direction, and the positions of the notches on the flanges on the left side and the right side of the net rack correspond one to one another; the filter screen is arranged on the net rack and covers the hollow part; gears which are matched and meshed with the rack parts are respectively arranged at two ends of the roller, so that the roller drives the filter screen to reciprocate along a preset path;

and the dust removal device is arranged on the front side of the bracket and used for cleaning the filter screen in a way.

In some embodiments, a plurality of first supporting strips are disposed in the hollow portion, two ends of each first supporting strip are respectively connected to the left side and the right side of the hollow portion, and the positions of the plurality of first supporting strips correspond to the positions of the notches on the flange one to one.

In some embodiments, the rear side of the first support bar is an arcuate face or a flat face.

In some embodiments, a second support bar is arranged in the hollow portion, two ends of the second support bar are respectively connected with the upper side and the lower side of the hollow portion, a plurality of support protrusions are arranged on the rear side face of the second support bar at intervals in sequence along the vertical direction, and the first support bars are respectively connected with the second support bar.

In some embodiments, the supporting device comprises a plurality of second supporting strips, and the plurality of second supporting strips are sequentially arranged at intervals along the left-right direction; each second supporting strip and each first supporting strip are perpendicular to each other, so that the hollow part is divided into a plurality of square hollow openings.

In some embodiments, the net frame, the first supporting bars and the second supporting bars are respectively made of soft plastics, and the net frame, the plurality of first supporting bars and the second supporting bars are formed into an integral piece through an injection molding process.

In some embodiments, the flange is provided with a plurality of reinforcing toothed portions which are arranged at intervals in the vertical direction, the positions of the plurality of reinforcing toothed portions correspond to the positions of the teeth on the rack portion one to one, and the plurality of reinforcing toothed portions are connected to the teeth on the rack portion in one to one correspondence.

In some embodiments, the upper and lower sides of the rear side of the rack are respectively provided with insertion projections extending outward to form sharp portions protruding from the edges of the rack.

In some embodiments, the left side and the right side of the bracket are respectively provided with a slide way, the two slide ways are arranged oppositely, the left side and the right side of the net rack are arranged in each slide way in a one-to-one correspondence manner, and the roller drives the filter screen to reciprocate along the slide ways.

In some embodiments, further comprising:

the driving device is arranged on the support, and the power output end of the driving device is in transmission connection with one end of the roller and is used for driving the roller to rotate so as to drive the filter screen to reciprocate along the slide way.

Compared with the prior art, the utility model, its beneficial effect lies in an air conditioning indoor unit:

the filter screen comprises a net rack and a filter screen, flanges are respectively arranged on the left side edge and the right side edge of the net rack, and the flanges increase the inward force of the net rack, so that the net rack can be elastically deformed inwards better in the process of the inner movement of the filter screen bracket, and the flexibility of the filter screen is improved; simultaneously be equipped with the breach that a plurality of intervals set up on the flange, the breach further reduces the resistance that the rack received at deformation in-process to improve the compliance of filter screen, and then reduce the sliding resistance of filter screen on the support, reach noise reduction effect.

Drawings

Fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to some embodiments of the present invention;

fig. 2 is a schematic structural view of an indoor unit of an air conditioner according to some embodiments of the present invention, in which an end plate of a casing is omitted;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is an exploded schematic view of FIG. 2;

fig. 6 is a schematic structural view of a filter screen device, a dust removing device and a driving device according to some embodiments of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

FIG. 8 is a left side view of FIG. 6;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 8;

FIG. 10 is a schematic view of the bracket of FIG. 6 with the illustration omitted;

FIG. 11 is a front view of FIG. 10;

FIG. 12 is a cross-sectional view taken along line C-C of FIG. 11;

FIG. 13 is an exploded view of FIG. 10;

fig. 14 is an exploded schematic view of a drive arrangement according to some embodiments of the present invention;

fig. 15 is a schematic structural view of a stent according to some embodiments of the present invention;

FIG. 16 is a front view of FIG. 15;

FIG. 17 is a cross-sectional view taken along line D-D of FIG. 16;

fig. 18 is a schematic structural view of a filter screen according to some embodiments of the present invention;

fig. 19 is an enlarged view of portion E of fig. 18;

fig. 20 is an enlarged view of portion F of fig. 19;

fig. 21 is a schematic structural view of a dust removing apparatus according to some embodiments of the present invention, in which a lid closes a dust outlet;

fig. 22 is a schematic structural view of a dust removing apparatus according to some embodiments of the present invention, in which a dust outlet is opened in a lid;

fig. 23 is an exploded schematic view of a dust extraction apparatus according to some embodiments of the present invention;

fig. 24 is a schematic structural view of a case and a dust guard according to some embodiments of the present invention;

fig. 25 is a schematic structural view of a cover of some embodiments of the present invention;

fig. 26 is a schematic structural view of a slider according to some embodiments of the present invention;

in the figure, the position of the upper end of the main shaft,

1. a housing; 11. an air inlet; 12. a front panel; 121. an installation port; 13. a top plate; 14. an end plate; 15. a bolt groove;

2. a strainer device; 21. a support; 211. a containing groove; 212. a vent; 213. a slideway; 2131. a first chute; 2131a, a first arc segment; 2131b, a first horizontal segment; 2132. a second chute; 2132a, a second arc segment; 2132b, a third arc segment; 2132c and a second horizontal segment; 214. mounting grooves; 215. a first support bar; 216. a second support bar; 22. a filter screen; 221. a net frame; 2211. a hollow-out section; 2212. a rack portion; 2213. a flange; 2214. a notch; 2215. a first support bar; 2216. a second supporting strip; 2216a, support protrusions; 2217. reinforcing the tooth portions; 2218. inserting the projection; 222. filtering with a screen; 23. a roller; 231. a second rotating shaft; 232. a barrel; 233. a gear;

3. a dust removal device; 31. a dust collecting box; 311. a case body; 3111. a dust inlet; 3112. a dust outlet; 3113. a jack; 3114. limiting convex strips; 3115. the handle is protruded; 3115a, a first handle groove; 312. a box cover; 3121. a slider slot; 3122. perforating; 3123. perforating; 3124. a limiting concave part; 3125. a second handle groove; 3126. a handle convex strip; 313. a slider; 3131. buckling; 3132. a plug pin portion; 3133. a slot; 314. a dust guard; 3141. a dust-blocking groove; 32. rolling and brushing; 321. a first rotating shaft; 3211. an insertion part; 3211a, a limit protrusion; 322. a roller brush cylinder;

4. a drive device; 41. a motor; 42. a driving gear; 43. a first driven gear; 431. a socket; 44. a second driven gear; 45. a protective shell; 451. a bottom case; 452. a shell cover;

5. a bolt member;

6. a cross-flow fan;

7. a heat exchanger;

10. and (7) assembling and disassembling the clearance.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 26, an air conditioner indoor unit according to an embodiment of the present invention includes a casing 1, a filter screen device 2, a dust removing device 3, a driving device 4, and a bolt 5. Wherein, the utility model discloses machine in air conditioning is wall-hanging machine in air conditioning, and the profile of shell 1 is long three-dimensional form roughly, and the length of shell 1 all is greater than its height or width promptly.

Referring to fig. 1-5, a cavity for accommodating a cross-flow fan 6 and a heat exchanger 7 of an indoor unit of an air conditioner is formed in a casing 1, an air inlet 11 is formed in the top of the casing 1, and an air outlet (not shown) is formed in the bottom of the front side of the casing 1, so that when the cross-flow fan 6 operates, indoor air is sucked into the cavity through the air inlet 11 in the top of the casing 1, and is subjected to heat exchange by the heat exchanger 7 to form cold air or hot air, and then flows back to the room from the air outlet. Specifically, the housing 1 includes a front panel 12, a top plate 13, a back plate (not shown), a bottom plate (not shown), and two end plates 14 respectively located at left and right sides of the front panel 12, the top plate 13, the back plate, the bottom plate, and the two end plates 14 jointly enclose a chamber, the air inlet 11 is located on the top plate 13, the air inlet 11 is substantially square, the number of the air inlet 11 is two, and the two air inlets 11 are spaced in the left-right direction. Meanwhile, each air inlet 11 is provided with an air inlet grille for preventing large objects from entering the inside of the housing 1 from the air inlet 11. The air outlet is arranged on the bottom plate, and a rotatable air deflector (not shown in the figure) is arranged at the air outlet and used for adjusting the air outlet direction so as to meet the use requirements of users. The front panel 12 is provided with two mounting ports 121 communicated to the chamber, and the positions of the mounting ports 121 correspond to the positions of the air inlets 11 one by one.

The filter screen device 2 is arranged in the cavity of the shell 1 and covers the air inlet 11. Referring to fig. 6-13 and 15-18, the screen device 2 includes a frame 21, a screen 22 and a roller 23.

Referring to fig. 4-8 and 15-17, the rear side of the bracket 21 is arc-shaped and concave, and the cross-flow fan 6 and the heat exchanger 7 of the indoor unit of the air conditioner are uniformly arranged on the rear side of the bracket 21. The rear side of the bracket 21 is provided with a containing groove 211, the top of the bracket 21 is provided with a vent 212 corresponding to the position of the air inlet 11, the vent 212 is communicated to the containing groove 211, and the air volume sucked from the air inlet 11 sequentially passes through the vent 212 and the containing groove 211 and then is sent out from the air outlet. The left and right inner side walls of the accommodation groove 211 are respectively provided with a slide way 213, and the two slide ways 213 are oppositely arranged. The left and right sides of the filter screen 22 are correspondingly arranged in the slide ways 213 one by one, and the rollers 23 are arranged in the accommodating grooves 211 to drive the filter screen 22 to reciprocate along the slide ways 213.

It should be noted that the embodiment of the present invention provides a front side of an air conditioner indoor unit near a user, and a rear side of the air conditioner indoor unit away from the user, so that the front and rear direction of the air conditioner indoor unit extends from a side near the user to a side away from the user. The upper side is the position of the air-conditioning indoor unit back to the ground, and the lower side is the position of the air-conditioning indoor unit close to the ground, so that the vertical direction is the direction from one side of the air conditioner far away from the ground to one side of the air conditioner close to the ground.

Specifically, referring to fig. 4 and 17, the chute 213 includes a first chute 2131 and a second chute 2132 which are sequentially arranged in the up-down direction, the front end of the first chute 2131 includes a first arc-shaped section 2131a which is bent upward, the front end of the second chute 2132 includes a second arc-shaped section 2132a and a third arc-shaped section 2132b which are arranged in the front-back direction, the second arc-shaped section 2132a is bent downward, the third arc-shaped section 2132b is bent upward, the first arc-shaped section 2131a, the second arc-shaped section 2132a and the third arc-shaped section 2132b are sequentially communicated with each other, the movement track of the chute 213 is optimized, the movement space of the filter screen 22 in the accommodating groove 211 is reduced, so that the heat exchanger 7 with a larger volume can be assembled, the volume of the heat exchanger 7 is effectively increased, and the heat exchange area is increased to improve the heat exchange effect. The front side of the bracket 21 is provided with a mounting groove 214, and the rear side of the mounting groove 214 is communicated with the receiving groove 211.

The first sliding groove 2131 further includes a first horizontal segment 2131b disposed at the rear end of the first arc segment 2131a, the second sliding groove 2132 further includes a second horizontal segment 2132c disposed at the rear end of the third arc segment 2132b, and the first horizontal segment 2131b and the second horizontal segment 2132c extend to the rear side wall of the housing 1 respectively and are spaced in the up-down direction. When the air conditioning indoor unit is in a refrigerating state or a heating state, the filter screen 22 is located in the first sliding groove 2131, the distance between the filter screen 22 and the heat exchanger 7 is large, the heat exchange space is increased, and the heat exchange effect is favorably improved. When the indoor unit of the air conditioner is in a dust removal state, the filter screen 22 slides from the first sliding groove 2131 into the second sliding groove 2132 or from the second sliding groove 2132 into the first sliding groove 2131, and the dust removal device 3 cleans dust on the surface of the filter screen 22.

Further, the heat exchanger 7 is located at the rear side of the notch of the accommodating groove 211, the outer side of the heat exchanger 7 is bent upwards, and the top of the heat exchanger 7 is arranged close to the third arc-shaped section 2132b and the second horizontal section 2132c, so that the installation space in the shell 1 is fully utilized, and the heat exchange area of the heat exchanger 7 is increased. Wherein, the utility model discloses a heat exchanger 7 is the same with the heat exchanger structure of machine in the air conditioning among the prior art, and the omission here is repeated.

The first sliding groove 2131 is disposed near the ventilation opening 212, and the upper side wall of the first horizontal segment 2131b and the upper side wall of the rear end of the first arc-shaped segment 2131a respectively penetrate the top of the bracket 21, so that the filter screen 22 is sequentially inserted into the first sliding groove 2131 from the rear end of the air inlet 11 and the rear end of the ventilation opening 212, and the filter screen 22 is detachably assembled into the sliding channel 213.

A plurality of first support rods 215 and a plurality of second support rods 216 are disposed on the bracket 21, two ends of each first support rod 215 are respectively connected to the left and right inner side walls of the receiving groove 211, and the plurality of first support rods 215 are sequentially disposed at intervals along the lower side edge of the first sliding groove 2131; both ends of each second support rod 216 are respectively connected to the left and right inner sidewalls of the receiving groove 211, and the plurality of second support rods 216 are sequentially disposed at intervals along the lower side edge of the second sliding groove 2132. When the filter screen 22 slides in the first sliding groove 2131, the first supporting rod 215 supports the bottom of the filter screen 22, so that the middle part of the filter screen 22 is prevented from being deformed due to gravity, and the sliding smoothness of the filter screen 22 in the first sliding groove 2131 is improved; on the same principle, when the filter screen 22 slides in the second sliding groove 2132, the second supporting rod 216 supports the bottom of the filter screen 22, so as to prevent the middle of the filter screen 22 from deforming due to gravity, and improve the smoothness of the sliding of the filter screen 22 in the second sliding groove 2132.

The bracket 21 can be a plastic integrated piece prepared by an injection molding process, and the preparation process is simple and convenient and has high preparation efficiency.

Referring to fig. 18-20, the filter screen 22 includes a rack 221 and a filter screen 222, a hollow portion 2211 is formed in a central region of the rack 221, rack portions 2212 are respectively formed on the rack 221 along left and right edges of the hollow portion 2211, the left and right edges of the rack 221 respectively extend outward to form flanges 2213, each flange 2213 is provided with a plurality of notches 2214 sequentially arranged at intervals in the vertical direction, and the notches 2214 on the flanges 2213 on the left and right sides of the rack 221 are in one-to-one correspondence; the filter screen 222 is disposed on the net frame 221 and covers the hollow portion 2211; the left and right sides of the net rack 221 are respectively arranged in the slide ways 213, and the roller 23 is matched with the net rack 221 to drive the filter screen 22 to reciprocate along the slide ways 213. When the net rack 221 slides back and forth between the first arc-shaped section 2131a and the second arc-shaped section 2132a, the edges of the two sides of the net rack 221 can elastically deform along the gap 2214, so as to increase the inward force of the net rack 221, thereby improving the overall flexibility of the filter screen 22 and reducing the sliding resistance of the filter screen 22, so that the filter screen 22 can slide back and forth between the first arc-shaped section 2131a and the second arc-shaped section 2132a more smoothly.

In order to ensure the smoothness of the filter screen 22 sliding between the first arc-shaped section 2131a and the second arc-shaped section 2132a in a reciprocating manner, the net rack 221 is made of soft plastic through injection molding, meanwhile, in the injection molding process, the filter screen 222 is attached to the net rack 221 to form an integrated structure, the net rack 221 and the filter screen 222 form an integrated structure through the injection molding process, and the overall firmness of the filter screen 22 is improved.

A plurality of first supporting strips 2215 are arranged in the hollow portion 2211, two ends of each first supporting strip 2215 are respectively connected with the left side and the right side of the hollow portion 2211, and the positions of the plurality of first supporting strips 2215 correspond to the positions of the notches 2214 on the flange 2213 one by one. The plurality of first supporting bars 2215 increase the overall strength of the net frame 221, and prevent the filter screen 222 in the hollow portion 2211 from being bent and collapsed, thereby ensuring the structural stability of the filter screen 22. Wherein, the back side of the first supporting strip 2215 is an arc-shaped surface or a plane.

Be equipped with second support bar 2216 in the fretwork portion 2211, the both ends of second support bar 2216 link to each other with the upper and lower both sides of fretwork portion 2211 respectively, are equipped with a plurality of support protrusions 2216a that set up along upper and lower direction interval in proper order on the trailing flank of second support bar 2216, and a plurality of first support bars 2215 link to each other with second support bar 2216 respectively. The number of the second supporting bars 2216 is multiple, and the second supporting bars 2216 are sequentially arranged at intervals in the left-right direction; each second supporting strip 2216 is perpendicular to each first supporting strip 2215, so as to divide the hollowed-out portion 2211 into a plurality of square hollowed-out portions. When roller 23 drive filter screen 22 along slide 213 reciprocating motion, the periphery wall butt of rolling roller 23 connects to support protrusion 2216a to play the supporting role to the middle part of filter screen 22, prevent that the middle part of filter screen 22 from taking place to buckle and collapsing, guarantee filter screen 22 along slide 213 reciprocating motion's stability.

The first support bars 2215 and the second support bars 2216 are made of soft plastics, and the grid frame 221, the plurality of first support bars 2215 and the plurality of second support bars 2216 are formed into an integral body through an injection molding process, so that the manufacturing efficiency is high and the manufacturing cost is low.

The flange 2213 is provided with a plurality of strengthening tooth portions 2217 which are sequentially arranged at intervals along the vertical direction, the positions of the strengthening tooth portions 2217 are in one-to-one correspondence with the positions of the teeth on the rack portion 2212, and the strengthening tooth portions 2217 are connected with the teeth on the rack portion 2212 in one-to-one correspondence, so that the contact area between the net rack 221 and the roller 23 is increased, and the motion stability of the filter screen 22 is improved.

The upper side and the lower side of the rear side of the net rack 221 are respectively provided with an insertion protrusion 2218, the insertion protrusions 2218 extend outwards to form sharp parts protruding out of the edge of the net rack 221, the thickness of the sharp parts is small, the thickness of the end parts of the upper side and the lower side of the net rack 221 is reduced, the upper side or the lower side of the filter screen 22 can be conveniently inserted into the first sliding groove 2131, and the assembly difficulty of the filter screen 22 in the sliding rail 213 is reduced.

Referring to fig. 6-13, the roller 23 includes a second shaft 231, a cylinder 232 and two gears 233, two ends of the second shaft 231 are rotatably inserted into the left and right sides of the bracket 21, the cylinder 232 is hollow and has openings at two ends, a cross section of the cylinder 232 is circular, and an outer peripheral wall of the cylinder 232 is abutted against the support protrusion 2216a of the filter screen 22 to improve the movement stability of the filter screen 22. The cylinder 232 is sleeved on the second rotating shaft 231 and rotates synchronously with the second rotating shaft 231, the two gears 233 are respectively located at two ends of the cylinder 232 and sleeved on the second rotating shaft 231, the two gears 233 rotate synchronously with the second rotating shaft 231, and the teeth on the two gears 233 are respectively engaged with the rack portions 2212 at the left and right sides of the rack 221 in a matching manner, and the second rotating shaft 231, the roller 23 and the two gears 233 are driven by the driving device 4 to rotate so as to drive the filter screen 22 to reciprocate along the slideway 213.

The dust removing device 3 is detachably provided in the mounting groove 214 from the mounting opening 121. Referring to fig. 6-13 and 21-26, the dust removing device 3 includes a dust collecting box 31 and a rolling brush 32, two ends of the rolling brush 32 are respectively rotatably disposed through the left and right sides of the dust collecting box 31, the rolling brush 32 is rotated to contact with the filter screen 22 to clean the dust on the surface of the filter screen 22, the dust is recovered into the dust collecting box 31 under the action of gravity, the dust collecting box 31 is disposed outdoors after being detached from the bracket 21, and the dust is prevented from falling indoors.

Referring to fig. 21-26, the dust collecting box 31 includes a box body 311, a box cover 312 and a sliding block 313, the box body 311 has a dust collecting cavity, a dust inlet 3111 connected to the dust collecting cavity is disposed at the top of the box body 311, the filter screen 22 and the roller 23 are both located above the dust inlet 3111, a dust outlet 3112 connected to the dust collecting cavity is disposed on the front side wall of the box body 311, and a receptacle 3113 is disposed along the edge of the dust outlet 3112; the top of the box cover 312 is pivotally connected to the front side of the box body 311 to open or close the dust outlet 3112, specifically, the left and right sides of the box cover 312 are respectively provided with a pivot shaft, and the left and right sides of the mounting groove 214 are respectively provided with a pivot hole for rotating in cooperation with the pivot shafts. The sliding block 313 is slidably disposed at the bottom of the front side of the cover 312, and when the cover 312 closes the dust outlet 3112, one end of the sliding block 313 is inserted into the insertion hole 3113. When the indoor unit of the air conditioner is in a dust removing state, one end of the slider 313 is inserted into the insertion hole 3113 to close the dust outlet 3112 by the box cover 312, and after the rolling brush 32 cleans the dust on the filter screen 22, the dust is recovered into the dust collecting cavity from the dust inlet 3111. When the operation of the indoor unit of the air conditioner is stopped, the dust collecting box 31 and the rolling brush 32 are detached from the bracket 21 and placed outdoors, the sliding block 313 is driven to slide so that one end of the sliding block 313 is pulled out of the insertion hole 3113, the box cover 312 rotates relative to the box body 311, and dust in the dust collecting cavity can be completely discharged from the dust outlet 3112, so that the discharging efficiency and the discharging effect of the dust in the dust collecting box 31 are improved, the operation is simple and convenient, and secondary pollution caused by the fact that the dust drops indoors is avoided.

The bottom of the front side of the box cover 312 is provided with a slider groove 3121, the inner side wall of the slider groove 3121 is provided with a through hole 3122 opposite to the insertion hole 3113, the slider 313 is slidably disposed in the slider groove 3121, and one end of the slider 313 penetrates through the through hole 3122 to be inserted into the insertion hole 3113.

The slot bottom of the sliding block slot 3121 is provided with a through hole 3123 penetrating through the rear side wall of the box cover 312, the sliding block 313 is provided with a buckle 3131 extending backwards, and the buckle 3131 penetrates through the through hole 3123 to be buckled on the rear side wall of the box cover 312. The number of the hooks 3131 is two, and the two hooks 3131 are respectively disposed on the rear side of the slider 313 in the vertical direction. The slider 313 is assembled in the slider groove 3121 as follows: the rear side of the slider 313 is inserted into the slider groove 3121 from one end of the slot opening of the slider groove 3121 and the latch 3131 is latched with the rear side wall of the box cover 312 after passing through the penetration opening 3123, thereby restricting the slider 313 from being withdrawn from the slider groove 3121 of the slider groove 3121 without affecting the sliding of the slider 313 within the slider groove 3121.

One end of the sliding block 313 is provided with a plug portion 3132, the plug portion 3132 passes through the through hole 3122 to be inserted into the insertion hole 3113, a front side wall of the other end of the sliding block 313 is provided with an insertion groove 3133, the size of the insertion groove 3133 is suitable for a user to insert a finger, so that the user can insert the finger into the insertion groove 3133 to drive the sliding of the sliding block 313.

The rear side wall of the dust collection cavity is provided with a dust baffle plate 314 extending along the left-right direction, the front side wall of the dust baffle plate 314 is arc-shaped, and the front side wall of the dust baffle plate 314 is provided with a plurality of dust baffle grooves 3141 which are sequentially arranged at intervals along the left-right direction. When dust enters the dust collecting cavity from the dust inlet 3111, in order to prevent the dust in the dust collecting cavity from entering the cross-flow fan 6 from the gap at the top of the rear side of the dust collecting box 31 due to negative pressure in the housing 1, the dust blocking plate 314 effectively blocks the floating dust in the dust collecting cavity, and the dust blocking groove 3141 enables the front side wall of the dust blocking plate 314 to be continuous and uneven, so that the dust blocking effect of the dust blocking plate 314 is effectively increased, and the dust in the dust collecting box 31 is prevented from entering the cross-flow fan 6.

The lower side wall of the dust collection cavity is provided with a limit protruding strip 3114 extending along the left-right direction, and the rear side wall of the box cover 312 is provided with a limit concave portion 3124 matched with the limit protruding strip 3114 for limiting. When the limiting concave portion 3124 abuts against the limiting convex strip 3114, the dust outlet 3112 is completely closed by the box cover 312, and the limiting convex strip 3114 is used for preventing the box cover 312 from excessively rotating in the process of closing the dust outlet, so that a positioning effect is achieved.

The insertion hole 3113 is formed in the left or right side wall of the dust collecting chamber, the slider groove 3121 extends in the left-right direction, the slider 313 is slidably disposed in the slider groove 3121 in the left-right direction, a handle protrusion 3115 is protrudingly formed on the front side wall of the case body 311 at a position close to the insertion hole 3113, and a first handle groove 3115a is formed on the handle protrusion 3115. When the user needs to detach the dust box 31 from the mounting groove 214, the user inserts fingers into the first handle notch 3115a, which is convenient for driving the dust box 31 to move along the front-back direction.

The lid 312 has a second handle groove 3125 on the front sidewall, a handle protrusion 3126 extending in the left-right direction is disposed along the lower edge of the second handle groove 3125 on the lid 312, the handle protrusion 3126 is gradually bent upward, and the handle protrusion 3126 is used for the user to drive the lid 312 to rotate relative to the box body 311, so as to open or close the dust outlet 3112 of the lid 312.

Referring to fig. 9-13 and 21-22, the rolling brush 32 includes a first rotating shaft 321 and a rolling brush drum 322, two ends of the first rotating shaft 321 respectively rotatably penetrate through the left and right sides of the dust collecting box 31, the rolling brush drum 322 is hollow and has openings at two ends, a plurality of brushes (the brushes may be hard brushes or soft brushes) are disposed on the outer peripheral wall of the rolling brush drum 322, the rolling brush drum 322 is sleeved on the first rotating shaft 321 and rotates synchronously with the first rotating shaft 321, and the driving device 4 drives the first rotating shaft 321 to rotate to drive the rolling brush drum 322 to rotate, so that the rolling brush drum 322 is in rolling contact with the filter screen 22 to clean the filter screen 22.

In order to prevent the dust on the roll brush 32 from falling into the room, the roll brush 32 needs to be removed from the mounting groove 214 together with the dust box 31, and therefore, the first rotating shaft 321 needs to be detachably connected to the driving device 4. Specifically, referring to fig. 9-13, the driving device 4 is disposed outside one side of the bracket 21, the power output end of the driving device 4 has a socket 431, and one end of the first rotating shaft 321 is slidably inserted into the socket 431 and can rotate along with the power output end of the driving device 4; the bolt piece 5 is used for realizing the detachable connection of the dust collection box 31 and the bracket 21; when the plug 5 releases the connection between the dust collection box 31 and the bracket 21, the dust collection box 31 can slide toward the end close to the mounting and dismounting gap 10 along the axial direction of the roller brush 32, and then the roller brush 32 is driven to slide, so that the end of the first rotating shaft 321 slides out of the socket 431, the roller brush 32 can be dismounted from the mounting groove 214 together with the dust collection box 31, and the dust falling phenomenon is avoided.

Referring to fig. 9 to 13, an end of the first rotating shaft 321 has an insertion portion 3211, a plurality of limiting protrusions 3211a are spaced around the insertion portion 3211, and a cross-sectional shape of the insertion opening 431 is matched with a cross-sectional shape of the first rotating shaft 321. Specifically, the cross section of the first rotating shaft 321 may be hexagonal, triangular or quadrangular, so as to ensure that the first rotating shaft 321 can rotate along with the power output end of the driving device 4 and can be pulled out from the socket 431 of the driving device 4, so that the rolling brush 32 and the dust collecting box 31 can be synchronously removed from the mounting groove 214.

Referring to fig. 1-3 and 5, a bolt groove 15 is formed in a side of the housing 1 away from the dismounting gap 10, the bolt 5 is slidably disposed in the bolt groove 15, and the bolt 5 can slide between a first position and a second position; when the bolt 5 is located at the first position, a part of the bolt 5 is abutted to the front side of the dust collection box 31 to limit the mutual detachment of the dust collection box 31 and the bracket 21; when the bolt 5 is located at the second position, the bolt 5 and the dust box 31 are separated from each other to release the connection between the dust box 31 and the bracket 21.

Referring to fig. 9-14, the driving device 4 includes a motor 41, a first driven gear 43 and a second driven gear 44, a driving gear 42 is sleeved on a power output end of the motor 41, the first driven gear 43 is engaged with the driving gear 42, a socket 431 is disposed on the first driven gear 43, that is, an end of the first rotating shaft 321 is inserted into the first driven gear 43, the second driving gear 233 is engaged with the driving gear 42, and an end of the second rotating shaft 231 penetrates through the second driven gear 44. When the motor 41 is operated, the driving gear 42 is in meshing transmission with the first driven gear 43, and the driving gear 42 is in meshing transmission with the second driven gear 44, so that the rolling brush 32 and the roller 23 rotate respectively, and the rotation direction of the rolling brush 32 is the same as that of the roller 23, when the rotating roller 23 drives the filter screen 22 to reciprocate in the slide channel 213, the movement direction of the filter screen 22 is opposite to the linear velocity direction of the top of the rolling brush 32, and the rolling brush 32 forms a reverse dust scraping force on the filter screen 22, so that the dust cleaning effect on the filter screen 22 is improved.

The driving device 4 further includes a protective shell 45, the protective shell 45 is disposed outside the bracket 21, the protective shell 45 includes a bottom shell 451 and a shell cover 452, the bottom shell 451 is fixed on the outer side wall of the bracket 21 through screws or bolts, the bottom shell 451 has a cavity, and the driving gear 42, the first driven gear 43 and the second driven gear 44 are disposed in the cavity; the housing cover 452 covers the opening of the cavity, the motor 41 is fixed on the housing cover 452, and the output shaft of the motor 41 passes through the housing cover 452 to pass through the driving gear 42.

Referring to fig. 1-3, in order to improve the dust removing effect and the dust removing stability of the filter screen 22, two air inlets 11 are disposed at the top of the housing 1 at intervals along the left-right direction, the number of the filter screen devices 2 is two, the number of the dust removing devices 3 is two, the number of the driving devices 4 is two, the number of the bolts 5 is two, the two filter screen devices 2, the two dust removing devices 3, the two driving devices 4 and the two bolts 5 are respectively in one-to-one correspondence, the two filter screen devices 2 are disposed in the housing 1 at intervals along the left-right direction and are in one-to-one correspondence with the air inlets 11, and the two driving devices 4 are respectively disposed at the left side and the right side of the housing 1.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An indoor unit of an air conditioner, comprising:

the top of the shell is provided with an air inlet;

the filter screen device is arranged in the shell and covers the air inlet, the filter screen device comprises a support, a filter screen arranged on the support and a roller rotatably arranged in the support, the filter screen comprises a net rack and a filter screen, a hollow part is formed in the central area of the net rack, rack parts are respectively arranged on the net rack along the left side edge and the right side edge of the hollow part, the left side edge and the right side edge of the net rack respectively extend outwards to form flanges, a plurality of notches are arranged on each flange at intervals in the vertical direction, and the positions of the notches on the flanges on the left side and the right side of the net rack are in one-to-one correspondence; the filter screen is arranged on the net rack and covers the hollow part; gears which are matched and meshed with the rack parts are respectively arranged at two ends of the roller, so that the roller drives the filter screen to reciprocate along a preset path;

and the dust removal device is arranged on the front side of the bracket and used for cleaning the filter screen in a way.

2. An indoor unit of an air conditioner as claimed in claim 1, wherein a plurality of first supporting bars are provided in the hollow portion, both ends of each of the first supporting bars are connected to left and right sides of the hollow portion, respectively, and positions of the plurality of first supporting bars correspond to positions of the notches on the flange one by one.

3. An indoor unit of an air conditioner according to claim 2, wherein a rear side of the first supporting bar is an arc-shaped surface or a flat surface.

4. The indoor unit of claim 2, wherein a second support bar is disposed in the hollow portion, two ends of the second support bar are respectively connected to the upper and lower sides of the hollow portion, a plurality of support protrusions are disposed on the rear side of the second support bar at intervals in the vertical direction, and a plurality of the first support bars are respectively connected to the second support bar.

5. The indoor unit of an air conditioner according to claim 4, comprising a plurality of the second supporting bars, the plurality of the second supporting bars being sequentially arranged at intervals in a left-right direction; each second supporting strip and each first supporting strip are arranged in a mutually perpendicular mode so as to divide the hollow-out portion into a plurality of square hollow-out openings.

6. The indoor unit of an air conditioner according to claim 4 or 5, wherein the net frame, the first supporting bars and the second supporting bars are respectively made of soft plastic, and the net frame, the plurality of first supporting bars and the second supporting bars are formed into an integral body by an injection molding process.

7. An indoor unit of an air conditioner as defined in claim 1, wherein a plurality of the reinforcing teeth portions are formed on the flange so as to be spaced apart in the vertical direction, the positions of the plurality of the reinforcing teeth portions correspond to the positions of the teeth of the rack portion one by one, and the plurality of the reinforcing teeth portions are connected to the respective teeth of the rack portion in one-to-one correspondence.

8. An indoor unit of an air conditioner according to claim 1, wherein insertion protrusions are formed at upper and lower sides of a rear surface of the grill, respectively, the insertion protrusions being extended outward to form sharp portions protruding from edges of the grill.

9. An indoor unit of an air conditioner as claimed in claim 1, wherein the left and right sides of the bracket are provided with slide ways, respectively, the two slide ways are disposed oppositely, the left and right sides of the net rack are disposed in the slide ways in a one-to-one correspondence, and the roller drives the filter screen to reciprocate along the slide ways.

10. An indoor unit of an air conditioner according to claim 9, further comprising:

the driving device is arranged on the support, and the power output end of the driving device is in transmission connection with one end of the roller and is used for driving the roller to rotate so as to drive the filter screen to reciprocate along the slide way.

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