CN107036270B

CN107036270B - Filter screen device

Info

Publication number: CN107036270B
Application number: CN201510412354.1A
Authority: CN
Inventors: 刘奇伟; 田镇龙; 张健
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2023-07-21
Anticipated expiration: 2035-07-14
Also published as: CN107036270A

Abstract

The invention discloses a filter screen device which comprises a bracket, a reel, a conveyor belt and a filter screen. The support comprises two side plates and a cross rod. The two side plates are basically arranged in parallel, and the cross rod is fixedly connected with the two side plates. The winding wheels are respectively arranged on the two side plates. The conveyor belts are respectively wound on the winding wheels in a stretching mode. The filter screen is fixed on the conveyor belt in a stretching mode so as to cover the support. The filter screen device of the embodiment of the invention is matched with the dust collection device of the wall-hanging air conditioner, and the filter screen can be moved by rotating the reel so that the dust collection device can remove dust at different positions on the filter screen.

Description

Filter screen device

Technical Field

The invention relates to the field of air conditioners, in particular to a filter screen device.

Background

The filter screen of the air conditioner accumulates dust in the use process, germs are easy to breed, and if the filter screen is not timely cleaned, the air inlet efficiency is affected, and the air flow of the air conditioner is polluted. However, the conventional cleaning needs to be manually implemented, for example, the filter screen is disassembled and cleaned and then assembled back to the air conditioner, so that the operation is inconvenient.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the invention provides a filter screen arrangement.

The filter screen device of the embodiment of the invention comprises a bracket, a reel, a conveyor belt and a filter screen. The support comprises two side plates and a cross rod. The two side plates are basically arranged in parallel, and the cross rod is fixedly connected with the two side plates. The winding wheels are respectively arranged on the two side plates. The conveyor belts are respectively wound on the winding wheels in a stretching mode. The filter screen is fixed on the conveyor belt in a stretching mode so as to cover the support.

The filter screen device of the embodiment of the invention is matched with the dust collection device of the wall-hanging air conditioner, and the filter screen can be moved by rotating the reel so that the dust collection device can remove dust at different positions on the filter screen.

In some embodiments, the side plate comprises at least two connecting plates, and the at least two connecting plates are movably connected.

In certain embodiments, the at least two webs are hinged.

In some embodiments, the reel is a gear and the conveyor belt is a rack belt that mates with the gear.

In some embodiments, the gear is a double gear comprising a first gear portion and a second gear portion fixedly connected. The filter screen device further comprises a driving gear and a driving motor, wherein the driving gear is connected with the first gear part, and the driving motor is connected with the driving gear. The rack belt is wound around the second gear portion.

In some embodiments, the roller comprises a first roller and a second roller, and the filter device further comprises a transmission shaft connecting the first roller and the second roller. The first reel is a duplex gear, and the duplex gear comprises a first gear part and a second gear part which are fixedly connected. The second reel is a gear. The filter screen device further comprises a driving gear and a driving motor, wherein the driving gear is connected with the first gear part, and the driving motor is connected with the driving gear. The conveyor belt is a rack belt matched with the second gear part and the second reel, and the rack belt is respectively stretched and wound on the second gear part and the second reel.

In certain embodiments, the screen assembly further comprises a driven wheel disposed on the two side plates. The conveyor belt is respectively wound on the winding wheel and the driven wheel in a stretching way.

In some embodiments, the filter screen device further comprises side covers respectively covering the two side plates to cover the conveyor belt.

In some embodiments, the side cover includes at least two connection covers mated with the at least two connection plates.

In certain embodiments, the screen is secured to the conveyor belt by heat staking.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a part of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 3 is a partially exploded view of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 4 is a schematic front view of a ventilator of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 5 is an exploded view of a ventilator of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view taken along the direction A-A in fig. 4.

Fig. 7 is an enlarged schematic view of B in fig. 6.

Fig. 8 is a schematic front view of an eddy current fan of a wall-mounted air conditioner according to an embodiment of the invention.

Fig. 9 is a right side view schematically showing a vortex fan of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 10 is a schematic left view of an eddy current fan of a wall-mounted air conditioner in accordance with an embodiment of the invention.

Fig. 11 is a schematic plan view of a ventilator of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 12 is a schematic front view of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 13 is a schematic cross-sectional view in the direction C-C of fig. 12.

Fig. 14 is a perspective view of an air filter of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 15 is a left side view schematically showing a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 16 is a schematic cross-sectional view taken along the direction D-D in fig. 15.

Fig. 17 is an enlarged schematic view at E in fig. 16.

Fig. 18 is an enlarged schematic view at F in fig. 17.

Fig. 19 is a schematic cross-sectional view in the direction G-G of fig. 12.

Fig. 20 is an exploded view of a filter screen device of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 21 is a schematic front view showing a structure of a filter unit part of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 22 is a schematic left view of a filter screen device of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 23 is an enlarged schematic view at III in fig. 22.

Fig. 24 is a schematic perspective view showing a part of the structure of a wall-mounted air conditioner according to an embodiment of the present invention.

Fig. 25 is a schematic plan view showing a part of the structure of a wall-mounted air conditioner according to an embodiment of the present invention.

FIG. 26 is a schematic cross-sectional view of I-I of FIG. 25.

Fig. 27 is an enlarged schematic view at II in fig. 26.

Fig. 28 is a schematic rear view showing a part of the structure of a wall-mounted air conditioner according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Embodiment one:

referring to fig. 1-3, a wall-mounted air conditioner 100 of the present embodiment includes a housing 10 and a ventilation device 20. The housing 10 includes a chassis 11 and an air deflector 12. The air deflector 12 is rotatably arranged on the chassis 11. The ventilator 20 is accommodated in the housing 10 and is disposed on the chassis 11. The ventilation device 20 is detachably mounted on the chassis 11 by means of a snap-fit structure and/or screws. The chassis 11 is formed with a receiving groove 111, a mounting seat 112, and a volute tongue air outlet 113. The accommodating groove 111 is used for accommodating a cross-flow fan (not shown) and a heat exchanger (not shown). The mounting seat 112 is located at the left side of the receiving groove 111 and is used for mounting the ventilator 20. The volute tongue air outlet 113 is communicated with the accommodating groove 111 and is used for sending out air flow established by the cross flow fan.

The ventilator 20 includes a volute 211 and a vortex fan 212. The vortex fan 212 is disposed within the volute 211. The scroll casing 211 includes an air inlet 211m for communication with the outside and an air outlet 211n for communication with the inside. The vortex fan 212 is used to establish an air flow to suck outdoor air from the air inlet 211m and discharge it into the room from the air outlet 211n. The air intake port 211m is located on the rear side plate of the chassis 11. The air outlet direction of the air outlet 211n is parallel to the air outlet direction of the volute tongue air outlet 113. The air deflector 12 is used for closing the volute tongue air outlet 113 and the air outlet 221n when closed and exposing the volute tongue air outlet 113 and the air outlet 211n when opened. The volute 211 of the ventilator 20 is provided with a hook 211p, and the chassis 11 is provided with a slot 114 matched with the hook 211 p. The ventilator 20 is mounted on the chassis 11 by the hook 211p and the slot 114.

Referring to fig. 4-9, the volute 211 includes a volute portion 2111, a first volute tongue 2112, and a second volute tongue 2113. The first tongue portion 2112 and the second tongue portion 2113 extend outwardly from the volute portion 2111 and communicate with the volute portion 2111. The vortex fan 212 is housed in the volute 2111 and is disposed coaxially with the volute 2111. The first tongue portion 2112 and the second tongue portion 2113 extend from the spiral portion 2111 in a tangential direction of the spiral portion 2111. The first scroll portion 2112 and the second scroll portion 2113 communicate with the indoor and the outdoor, respectively.

The scroll casing 211 includes a first housing 211a and a second housing 211b. The first housing 211a and the second housing 211b are divided along a central axis perpendicular to the scroll portion 2111. The first housing 211a includes a first volute casing 2111a, a first volute casing 2112a, and a second volute casing 2113a. The second housing 211b includes a second volute casing 2111b, a third volute casing 2112b, and a fourth volute casing 2113b. The first and second scroll cases 2111a and 2111b are assembled to form the scroll portion 2111. The first volute tongue housing 2112a and the third volute tongue housing 2112b are assembled to form a first volute tongue 2112, and the second volute tongue housing 2113a and the fourth volute tongue housing 2113b are assembled to form a second volute tongue 2113.

The first housing 211a further includes a first arc-shaped connection plate 211g. The first arc-shaped connection plate 211g is connected to the first volute casing 2111a, the first volute casing 2112a, and the second volute casing 2113a and is disposed coaxially with the first volute casing 2111 a. The second housing 211b further includes a second arc-shaped connection plate 211h. The second arc-shaped connection plate 211h connects the second volute 2111b, the third volute 2112b, and the fourth volute 2113b and is disposed coaxially with the second volute 2111 b.

The outer edge of the first housing 211a is formed with a protrusion 211c, the outer edge of the second housing 211b is formed with a catch 211d engaged with the protrusion 211c, and the first housing 211a and the second housing 211b are assembled together by the catch 211d engaged with the protrusion 211 c. A first cutout 211e is formed between the edge end surface and the inner surface of the first housing 211a, the first cutout 211e extends along the outer edge of the first housing 211a, and a second cutout 211f is formed between the edge end surface and the outer surface of the second housing 211b, which is fitted with the first cutout 211 e.

Vortex fan 212 includes an outer rotor motor 2121 and a vortex rotor 2122. The outer rotor motor 2121 includes an inner stator 2121a and an outer rotor 2121b. The outer rotor 2121b is rotatably provided around the inner stator 2121 a. Vortex rotor 2122 includes hub 2122a, blades 2122b, and disks 2123c. Hub 2122a is coupled to outer rotor 2121b, and blades 2122b extend outwardly from hub 2122a and are radially arranged. The blades 2122b extend radially of the vortex wind wheel 2122, or are forward or backward swept. The disks 2123c extend outwardly from the hub 2122a along a rotational axis perpendicular to the vortex rotor 2122 and connect the blades 2122b.

The outer rotor 2121b has an axial thickness greater than that of the hub 2122a, the hub 2122a has an axial thickness greater than that of the blades 2122b, and the inner stator 2121a extends from one axial side of the outer rotor 2121b, and the first housing 211a forms a blade receiving groove 211i, a hub receiving groove 211j extending outwardly from a bottom surface of the blade receiving groove 211i, a rotor receiving groove 211k extending outwardly from a bottom surface of the hub receiving groove 211j, and a stator receiving groove 211l extending outwardly from a bottom surface of the stator receiving groove 211 k. The distance between the blade 2122b and the bottom surface of the blade receiving groove 211i is 1-3mm.

The inner stator 2121a includes a mounting end face 2121c, and the mounting end face 2121c is adapted to be fastened to the bottom surface of the stator receiving groove 211k by a fastener.

The ventilator 20 further comprises a shock absorbing element 213, such as a rubber gasket. Damping element 213 is disposed between inner stator 2121a and the bottom surface of stator receiving groove 211.

Embodiment two:

referring to fig. 10, the ventilator 20 of the present embodiment includes a volute 211 and a vortex fan 212. The vortex fan 212 is disposed within the volute 211. The volute 211 includes a volute portion 2111, a first volute tongue 2112, and a second volute tongue 2113. The first tongue portion 2112 and the second tongue portion 2113 extend outwardly from the volute portion 2111 and communicate with the volute portion 2111. The vortex fan 212 is housed in the volute 2111 and is disposed coaxially with the volute 2111. The second volute tongue is fitted with an air filter 30 for filtering air passing through the second volute tongue 2113.

The second tongue portion 2113 includes a depressed portion 2113c and a constricted portion 2113d extending from the spiral portion 2111 in the air outlet direction of the second tongue portion 2113. The cross-sectional area through which air passes in the step-down portion 2113c is larger than the cross-sectional area through which air passes in the first tongue portion 2112, and the air filter 30 is installed in the step-down portion 2113 c. The cross-sectional area through which the air of the constricted portion 2113 passes is smaller than the cross-sectional area through which the air of the depressed portion 2113c passes. Therefore, the air outlet speed can be accelerated, purified air can be blown to a place farther, and meanwhile, the sound of the air outlet can be changed, so that better experience is brought to users. The air filter 30 is a HEPA (High Efficiency Particulate Air Filter) filter screen.

The ventilation device 20 and the wall-mounted air conditioner 100 of the present embodiment are described in the first embodiment, and are not described herein.

Embodiment III:

referring to fig. 12-18, the ventilation device 20 of the present embodiment includes a volute 211, a fan, an air filter 30, a first magnetic element 33 and a second magnetic element 34. The volute 211 includes a volute portion 2111, a first volute tongue 2112, and a second volute tongue 2112. The first tongue portion 2112 and the second tongue portion 2112 extend outwardly from the volute portion 2111 and communicate with the volute portion 2111. The fan is housed in the volute 2111 and is disposed coaxially with the volute 2111. The air filter 30 includes a mounting plate 31 and a filter 32 extending upward from the mounting plate 31. The filter 32 extends from the mounting plate 31 in the thickness direction of the filter 32. The side wall of the second tongue 2112 is provided with an opening 36, the opening 36 being for insertion of the strainer 32 into the second tongue 2112. The mounting plate 31 is used to seal the opening 36 and the filter 32 is used to filter air passing from the second tongue 2112. The outer surface of the mounting plate 31 is formed with a handle portion 311.

The first magnetic element 33 is disposed on the second volute tongue 2112 and the second magnetic element 34 is disposed on the mounting plate 31 and cooperates with the first magnetic element 33 for securing the air filter 30 to the second volute tongue 2112. The force between the first magnetic element 33 and the second magnetic element 34 is substantially parallel to the direction in which the air filter 30 is inserted into the second volute tongue 2112.

The ventilation device 20 further comprises a seal 35, such as a sponge. A seal 35 is provided between the mounting plate 31 and the second scroll tongue 2112, the seal being used to further seal the opening 36.

The fan is an eddy current fan 212.

Referring to fig. 12-18, the wall-mounted air conditioner 100 of the present embodiment includes a chassis 11, a face frame 13, and a ventilation device 20 of the present embodiment. The face frame 13 is covered on the chassis 11. The ventilation device 20 is provided at one end of the chassis 11 and is housed in the face frame 13. The face frame 13 includes a side plate 131 disposed opposite the ventilator 20, and the opening 36 of the side wall of the second tongue portion 2112 is directed toward the side plate 131. The side plate 131 is provided with a mounting opening 37, and the opening 36 is exposed from the mounting opening 37. The mounting plate 31 is accommodated in the mounting opening 37 and covers and seals the opening 36.

When the air filter 30 needs to be disassembled, the air filter can be pulled out by pulling the handle 311 along the arrow direction in fig. 12 and overcoming the attraction force of the first magnetic element 33 and the second magnetic element 34, so that the operation is convenient.

The other features of the ventilation device 20 and the wall-mounted air conditioner 100 of the present embodiment are referred to the first and second embodiments, and are not described herein.

Embodiment four:

referring to fig. 2, 12-13, 19-28, the wall-mounted air conditioner 100 of the present embodiment includes a housing 10, a ventilation device 20, a filter device 40, a dust collection device 50, and a hose 60. The housing 10 includes a chassis 11 and a face frame 13. The chassis 11 is formed with a receiving groove 111 and a mount 112. The accommodating groove 111 is used for accommodating a cross-flow fan (not shown) and a heat exchanger (not shown). The mounting seat 112 is located at the left side of the receiving groove 111 and is used for mounting the ventilator 20. The surface frame 13 is covered on the chassis 11, and the surface frame 13 is formed with an air inlet 132. The ventilator 20 is housed in the case and mounted on the chassis 11. The ventilator 20 includes a volute 211 and a fan. The scroll casing 211 is formed with a dust suction port 211q and a dust discharge port 211r.

Volute 211 includes volute portion 2111, first volute tongue 2112, second volute tongue 2113, and third volute tongue 2114. The first tongue portion 2112, the second tongue portion 2113, and the third tongue portion 2114 extend outward from the volute portion 2111 and communicate with the volute portion 2111. A rotatable reversing valve 2115 is arranged at the intersection of the second scroll tongue 2113 and the third scroll tongue 2114; the fan is accommodated in the volute 2111 and is arranged coaxially with the volute 2111; the dust discharge port 211r is formed in the first scroll tongue 2112, the second scroll tongue 2113 is formed with the air outlet 211n, and the dust suction port 211q is formed in the third scroll tongue 2114; the reversing valve 2115 is used to close the air outlet 211n or the suction port 211q when rotated.

The fan is disposed within the volute 211. The filter device 40 is disposed on the face frame 13 and covers the air inlet 132. The dust suction device 50 is connected to the dust suction port 211q on the face frame 13. The joint between the dust suction device 50 and the dust suction port 211q is provided with a sealing member, and the sealing member is silica gel. The dust suction device 50 is formed with a dust suction groove 50a. The length of the dust suction device 50 is substantially the same as that of the wall-hanging air conditioner 100. The suction groove 50a faces the filter 44 of the filter device 40 and communicates with the suction port 211q. The hose 60 is connected to the dust discharge port 211r and outdoors.

Referring to fig. 19-23, the filter device 40 includes a frame 41, a reel 42, a conveyor belt 43, a filter 44, a driven wheel 45, a side cover 46, a driving gear 47, a transmission shaft 48, and a driving motor (not shown). The bracket 41 comprises two side plates 411, a cross bar 412 and a vertical bar 413. The two side plates 411 are arranged substantially in parallel, and the cross bar 412 is fixedly connected to the two side plates 411. The side plate 411 comprises at least two connecting plates 4111, and the connecting plates 4111 are movably connected. The connecting plates 4111 are connected together by a hinge. The two side plates 411 are extended outwards to form a limit plate 4112 and a mounting block 4113, and the mounting block 4113 is formed with a screw hole for mounting the side cover 46. The vertical rods 413 are fixedly connected between the cross rods 412, so that the stability of the bracket 41 can be improved. The reel 42 and the driven pulley 45 are provided on both side plates 411, respectively. The reel 42 is a gear and the belt 43 is a rack belt matching the gear. The reel 42 includes a first reel 421 and a second reel 422. The first reel 421 is a double gear, which includes a first gear portion 421a and a second gear portion 421b fixedly connected. The conveyor belt 43 includes a first conveyor belt (not shown) that is stretch-wound around the second gear portion 421b and the driven pulley 45, and a second conveyor belt (not shown) that is stretch-wound around the second reel 422 and the driven pulley 45, and a stopper plate 4112 is located between the inner walls of the conveyor belt 43. In this way, the conveyor belt 43 is prevented from interfering with itself during the driving. The pins 4114 mounted on the side plates 411 serve to ensure that the conveyor belt 43 remains substantially parallel to the profile of the side plates 411 during transport, so that the conveyor belt 43 moves along the set guide grooves. The diameter of the driven pulley 45 is smaller than the width of the side plate 411 so that the side plate can block the conveyor belt 43 from moving axially. The screen 44 is fixed to the conveyor belt 43 by hot melt stretching to cover the holder 41. The side covers 46 are respectively covered on the side plates 411 to cover the conveyor belt 43, and the side covers 46 are mounted to the side plates 411 by fasteners fitted with screw holes on the mounting blocks. The side cover 46 includes at least two connecting covers 461, and the connecting covers 461 are matched with the side plates 411. The drive gear 47 is connected to the first gear portion 421a, and the transmission shaft 47 is connected to the first reel 421 and the second reel 422. The drive motor is mounted on the face frame 13 and is connected to the drive gear 47.

Referring to fig. 24-28, the dust suction device 50 includes a dust suction frame 51, a mounting portion 52, a motor 53, rollers 55 and a sealing strip 55. The dust collection frame 51 includes a support plate 511, an upper panel 512, and a rear cover 513. The upper panel 512 is mounted on the support plate 511. The back cover 513 is connected to the back cover 513 of the support plate 511 and the upper panel 512. The rear cover 513 is attached to the screen 44 of the screen device 40, and the dust collection groove 50a is provided in the longitudinal direction of the rear cover 513.

The mounting portion 52 is hollow and is mounted to one end of the dust collection frame 51. The motor 53 is mounted outside the mounting portion 52. The roller 55 is mounted in the mounting portion 52 and connected to the motor 53. The sealing strip 55 is installed in the dust collection frame 51 and connected with the roller 55. The motor 53 drives the sealing strip 55 to move through the roller 55 so as to adjust the opening size of the dust collection groove 50a.

When the wall-mounted air conditioner 100 is in the dust suction mode, the reversing valve 2115 rotates to close the air outlet 211n, the fan rotates forward, and the dust suction groove 50a forms suction to suck the dust on the filter screen 44, and the dust is discharged to the outside through the hose 60. The conveyor belt 43 can move back and forth under the drive of the driving motor of the filter screen device 40, so as to drive the filter screen 44 to move back and forth, and the dust collection groove 50a can absorb dust at each position on the filter screen 44, so that dust collection is cleaner. When the wall-mounted air conditioner 100 is in the ventilation mode, the reversing valve 2115 is turned to close the dust suction port 211q, the fan is reversed, and the dust discharge port 211r (in this case, the air inlet) sucks air from the outdoor air, passes through the second scroll portion 2113, and is sent to the room from the air outlet 211n. The wall-mounted air conditioner 100 is integrated with the dust collection function and the ventilation function, so that the wall-mounted air conditioner 100 is more compact in structure.

The other features of the wall-mounted air conditioner 100 in this embodiment are referred to the first, second and third embodiments, and are not described herein.

Referring to fig. 19-23, a filter device 40 according to an embodiment of the present invention includes a frame 41, a reel 42, a conveyor belt 43, and a filter 44. The bracket 41 includes two side plates 411 and a cross bar 412. The two side plates 411 are arranged substantially in parallel, and the cross bar 412 is fixedly connected to the two side plates 411. The reel 42 is provided on both side plates 411, respectively. The conveyor belts 43 are respectively wound on the winding wheels 42 in a stretched state. The screen 44 is stretch-fastened to the conveyor belt 43 to cover the holder 41.

The filter screen device 40 according to the embodiment of the present invention is matched with the dust collection device 50 of the wall-hanging type air conditioner 100, and the filter screen 44 can be moved by rotating the reel 42 so that the dust collection device 50 removes dust at different positions on the filter screen 44.

In some embodiments, the side plate 411 includes at least two connecting plates 4111, and the at least two connecting plates 4111 are movably connected.

Thus, the shape of the side plate 411 can be changed by the movable connection part, so that the shape of the whole bracket 41 can be changed, and the bracket is convenient to be attached to the face frame 13 of the wall-mounted air conditioner 100.

In certain embodiments, at least two of the connection plates 4111 are hinged.

In this way, the connection plates 4111 are hinged to form a revolute pair, which is convenient to manufacture, and the connection plates 4111 can rotate relative to each other.

In some embodiments, the reel 42 is a gear and the conveyor belt 43 is a rack belt that mates with the gear.

Thus, the transmission of the conveyor belt is more stable.

In some embodiments, the reel is a duplex gear, which includes a first gear portion and a second gear portion fixedly connected. The screen device 40 further includes a drive gear connected to the first gear portion and a drive motor (not shown) connected to the drive gear. The rack belt is wound around the second gear portion.

In this way, the driving gear is used as an intermediate gear to connect the winding wheel and the driving motor, which facilitates the structural design of the filter screen device 40. In this embodiment, two rollers disposed on two side plates 411 may be dual gears, and two motors may drive the rollers to synchronously move, so as to drive the filter screen 44 to move when the conveyor belt 43 runs.

In some embodiments, the roller 42 includes a first roller 421 and a second roller 422, and the filter device 40 further includes a drive shaft 48 connecting the first roller 421 and the second roller 422. The first reel 421 is a double gear, which includes a first gear portion 421a and a second gear portion 421b fixedly connected. The second reel 422 is a gear. The screen device 40 further includes a driving gear 47 and a driving motor, the driving gear 47 is connected to the first gear portion 421a, and the driving motor is connected to the driving gear 47. The conveyor 43 is a rack belt engaged with the second gear portion 421b and the second reel 422, and the rack belt is stretched around the second gear portion 421b and the second reel 422, respectively.

The filter screen device 40 of the present embodiment drives the first winding wheel 421 to drive through the driving motor, and drives the second winding wheel 422 to drive through the transmission shaft 48, so that one driving motor drives the two conveyor belts 43 to move synchronously, and thus, the manufacturing cost of the filter screen device 40 is saved.

In some embodiments, the screen assembly 40 further includes a driven wheel 45, the driven wheel 45 being disposed on both side panels 411. The conveyor belt 43 is wound around the reel 42 and the driven pulley 45 in a stretched state.

In this way, friction during movement of the conveyor belt 43 is reduced.

In some embodiments, the filter device 40 further includes side covers 46, wherein the side covers 46 cover the conveyor belt 43 on the two side plates 411.

Thus, dust is prevented from falling onto the conveyor belt 43, the working performance of the conveyor belt 43 is affected, and interference with the outside in the movement process of the conveyor belt 43 can be avoided.

In some embodiments, the side cover 46 includes at least two connector covers 461 that mate with at least two connector plates 4111.

Thus, the structure of the side plate 411 can be matched, so that the filter screen device 40 can be conveniently attached to the wall-mounted air conditioner 100.

In some embodiments, the screen 44 is secured to the conveyor belt 43 by heat staking.

Thus, the filter screen 44 can be smoothly and firmly combined on the conveyor belt 43, and the filter screen 44 is prevented from falling off from the conveyor belt 43 in the moving process.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a filter screen device, filter screen device cooperation wall-hanging air conditioner's dust extraction removes dust, its characterized in that includes:

a stent, the stent comprising:

two side plates arranged in parallel basically; and

The cross rod is fixedly connected with the two side plates;

the rolling wheels are respectively arranged on the two side plates;

respectively stretching the conveyor belts wound on the winding wheels; and

A screen stretched and fixed on the conveyor belt to cover the bracket; wherein the method comprises the steps of

The side plates comprise at least two connecting plates which are movably connected;

limiting plates are outwards extended from the two side plates and are positioned between the inner walls of the conveyor belt;

the filter screen device comprises a first roller, a second roller, a first roller and a second roller, wherein the first roller is connected with the second roller; the first reel is a duplex gear, and the duplex gear comprises a first gear part and a second gear part which are fixedly connected; the second reel is a gear; the filter screen device further comprises a driving gear connected with the first gear part and a driving motor connected with the driving gear;

the conveyor belt is a rack belt matched with the second gear part and the second reel, and the rack belt is respectively stretched and wound on the second gear part and the second reel;

the wall-mounted air conditioner comprises a chassis, a face frame, a hose, a ventilation device and a dust collection device, wherein the ventilation device comprises a volute and a fan, the fan is arranged in the volute, and the volute is provided with an air outlet, a dust collection port and a dust discharge port;

the volute comprises a volute part, a first volute tongue part, a second volute tongue part and a third volute tongue part, wherein the first volute tongue part, the second volute tongue part and the third volute tongue part extend outwards from the volute part and are communicated with the volute part, a rotatable reversing valve is arranged at the intersection of the second volute tongue part and the third volute tongue part, the dust exhaust port is formed in the first volute tongue part, the air outlet is formed in the second volute tongue part, and the dust collection port is formed in the third volute tongue part; wherein the method comprises the steps of

The face frame is covered on the chassis, the dust collection device is arranged on the face frame and connected with the dust collection opening, and a dust collection groove is formed in the dust collection device;

when the wall-mounted air conditioner is in a dust collection mode, the reversing valve rotates to close the air outlet, the fan rotates positively, the dust collection groove forms suction force to absorb dust on the filter screen and discharges the dust to the outside through the hose, and the conveyor belt drives the filter screen to move back and forth under the driving of the driving motor, so that the dust collection groove absorbs dust at all positions on the filter screen; when the wall-mounted air conditioner is in a ventilation mode, the reversing valve rotates to close the dust collection opening, the fan reverses, the dust discharge opening sucks air from the outside, and the air flows through the second volute tongue and is sent to the room from the air outlet.

2. The filter screen apparatus of claim 1, wherein the at least two webs are hinged.

3. The filter screen apparatus of claim 1 further comprising driven wheels disposed on each of said side plates, said conveyor belt being stretch-wrapped around said reel and said driven wheels, respectively.

4. The filter screen apparatus of claim 1, further comprising side covers respectively covering the two side plates to cover the conveyor belt.

5. The filter screen apparatus of claim 4, wherein said side cover includes at least two connection covers mated with said at least two connection plates.

6. The screen apparatus of claim 1, wherein the screen is secured to the conveyor belt by heat staking.