WO2021020225A1 - 空気調和機 - Google Patents

空気調和機 Download PDF

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Publication number
WO2021020225A1
WO2021020225A1 PCT/JP2020/028209 JP2020028209W WO2021020225A1 WO 2021020225 A1 WO2021020225 A1 WO 2021020225A1 JP 2020028209 W JP2020028209 W JP 2020028209W WO 2021020225 A1 WO2021020225 A1 WO 2021020225A1
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WO
WIPO (PCT)
Prior art keywords
dust
brush
dust removing
removing unit
unit
Prior art date
Application number
PCT/JP2020/028209
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
峻一 植松
伸悟 浅羽
輝夫 藤社
清水　昭彦
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202080015155.6A priority Critical patent/CN113439183B/zh
Publication of WO2021020225A1 publication Critical patent/WO2021020225A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/90—Cleaning of purification apparatus

Definitions

  • This disclosure relates to an air conditioner.
  • the air conditioner described in Patent Document 1 still has room for improvement from the viewpoint of improving the efficiency of removing dust. Further, after the dust is scraped off to the dust receiving portion, the suction device needs to be operated for several tens of minutes in order to discharge the dust to the outside of the room. The user may feel uncomfortable with the driving noise generated during the operation of the suction device.
  • the air conditioner according to the present disclosure can further improve the efficiency of removing dust, shorten the operating time of the suction device, and reduce noise.
  • the air conditioner of the present disclosure has a filter cleaning function for cleaning dust adhering to the air filter. Further, the air conditioner of the present disclosure is provided so as to extend in the width direction of the air filter, and is located below the brush and the brush for removing the dust adhering to the air filter. A dust receiving portion that is provided so as to extend in the extending direction and receives the dust removed by the brush, and a dust receiving portion that moves in the dust receiving portion in the extending direction to scrape the dust adhering to the brush. A dust removing unit that moves the dust scraped into the dust receiving portion while dropping the dust, a suction device that is arranged at the end of the dust receiving portion and sucks the dust in the dust receiving portion, and the air.
  • It includes a control unit that executes an air filter cleaning mode for cleaning the dust adhering to the filter.
  • the control unit starts the operation of scraping the dust adhering to the brush into the dust receiving unit by the dust removing unit in the air filter cleaning mode, the dust removing unit is located at the start position. To control.
  • the efficiency of removing dust is further improved, and the operating time of the suction device is shortened.
  • Cross-sectional view of the indoor unit included in the air conditioner according to the first embodiment. An enlarged cross-sectional view showing an operation of removing dust adhering to the surface of an air filter.
  • FIG. 12 A perspective view showing a state in which the dust receiving portion is removed from the state shown in FIG.
  • FIG. 12 A perspective view showing a dust removing portion included in the indoor unit according to the first embodiment.
  • FIG. 12 An exploded perspective view of the dust removing portion shown in FIG. Front view of the dust removing unit included in the indoor unit according to the first embodiment
  • the air conditioner according to the first embodiment of the present disclosure includes an outdoor unit connected to each other by a pipe through which a refrigerant flows, and an indoor unit provided in a room to be air-conditioned.
  • FIG. 1 is a perspective view showing an indoor unit 1 in the air conditioner according to the first embodiment.
  • FIG. 2 is a cross-sectional view showing a main internal configuration of the indoor unit 1 of FIG.
  • the indoor unit 1 includes a main body (also referred to as an air conditioner main body) 2 and a front panel 4 that can close and open / close the front opening 2a of the main body 2. ing.
  • An upper surface opening 2b is provided on the upper surface side of the main body 2, and a suction port 9 for taking in indoor air is provided.
  • An air outlet 10 that is closed when the operation is stopped is provided below the main body 2.
  • the fan 8 is, for example, a cross-flow fan, and is configured to blow air into the room from an air outlet 10 provided below the main body 2. Further, in the vicinity of the air outlet 10, a plurality of vertical wind direction changing blades 12 that open and close the air outlet 10 and change the air blowing direction up and down, and a left and right wind direction changing blade 14 that changes the air blowing direction left and right. Is provided.
  • the vertical wind direction changing blades 12 open and the air outlet 10 is opened.
  • indoor air is taken into the indoor unit 1 through the upper surface opening 2b.
  • the taken-in indoor air passes through the air filter 18, is heat-exchanged by the heat exchanger 6, passes through the fan 8, and is guided to the ventilation passage 16 formed on the downstream side in the ventilation direction of the fan 8, and is guided to the air outlet. It is blown out from 10.
  • the air filter 18 provided between the upper surface opening 2b and the heat exchanger 6 removes dust contained in the indoor air taken in from the upper surface opening 2b.
  • the air filter 18 includes a frame body portion and a net portion held by the frame body portion.
  • the air conditioner according to the first embodiment includes a filter device 3 for cleaning dust adhering to a net portion of the air filter 18.
  • the air filter 18 is held by the filter holding member 20.
  • the filter holding member 20 is provided with a first holding space 20A and a second holding space 20B for holding the air filter 18.
  • the air filter 18 is reciprocally transported between the first holding space 20A and the second holding space 20B by the filter transport device 22.
  • the filter transfer device 22 is provided on the outer peripheral surface of the shaft 24 and the shaft 24 extending in the width direction (depth direction in FIG. 2) of the indoor unit 1 with a predetermined interval in the extending direction of the shaft 24. It is equipped with a gear 26.
  • the air filter 18 is hung around the outer peripheral surface of the shaft 24 and is attached so as to engage with the gear 26.
  • the air filter 18 is normally located in the first holding space 20A during air conditioning operation, and removes dust contained in the indoor air sucked from the upper surface opening 2b.
  • the air conditioner according to the first embodiment, when the air conditioning operation time elapses for a predetermined time or when the air filter cleaning instruction is input, the cleaning operation for the air filter 18 is started.
  • These drive controls are executed by the control unit 80 (see FIG. 1) provided inside the main body 2.
  • the control unit 80 provided inside the main body 2 executes an air filter cleaning mode for cleaning dust adhering to the air filter 18.
  • the gear 26 of the filter transport device 22 rotates in the positive direction (counterclockwise in FIG.
  • the transport path of the air filter 18 from the first holding space 20A to the second holding space 20B is referred to as an "outward route", and the air filter 18 from the second holding space 20B to the first holding space 20A.
  • the transport route is called the "return route”.
  • 3 and 4 are enlarged cross-sectional views showing an operation of removing dust adhering to the surface of the air filter 18.
  • a guide member 28 for guiding the air filter 18 so as to move the air filter 18 along the outer peripheral surface of the shaft 24 is provided in the vicinity of the shaft 24 of the filter transfer device 22. ing.
  • the guide member 28 is provided with a predetermined gap from the outer peripheral surface of the shaft 24.
  • a brush 30 for removing dust adhering to the surface of the air filter 18 is provided in the vicinity of the shaft 24.
  • the base end portion of the brush 30 is held by the brush holding portion 32 which is a part of the brush driving device.
  • the brush 30 and the brush holding portion 32 are provided so as to extend in the width direction of the indoor unit 1. That is, the brush 30 and the brush holding portion 32 extend along the width direction of the air filter 18 and are arranged side by side.
  • the brush holding portion 32 is configured to rotate about a rotation shaft 32a extending in the width direction of the indoor unit 1.
  • a dust removing portion 34 for removing dust adhering to the brush 30 is provided below the brush holding portion 32.
  • 5A to 5C show the operation of the dust removing unit 34 scraping off the dust adhering to the brush 30.
  • 6A to 6D show an operation in which the dust removing unit 34 scrapes off the dust adhering to the brush 30, and an operation in which the scraped dust is collected.
  • the brush holding portion 32 rotates about the rotation shaft 32a.
  • the brush holding portion 32 has the tip end portion of the brush 30 in the second holding space 20B at a position downstream of the guide member 28 on the downstream side (position on the right side of the lower end of the guide member 28 in FIG. 3). It can be arranged at a first position (see FIG. 3) in contact with the air filter 18 and a second position (see FIG. 4) in contact with the dust removing portion 34.
  • the tip of the brush 30 is in the first position, the air filter 18 reciprocates in the transport path of the outward path and the return path, so that the dust adhering to the air filter 18 is scraped off by the brush 30.
  • the dust removing operation of the brush 30 is a "sliding scraping operation” in which the dust removing portion 34 is moved (sliding) along the extending direction of the brush 30 to scrape off the dust and / or the dust is collected. Includes “sliding scraping operation”. Further, the dust removing operation of the brush 30 may include a “swinging scraping operation” in which the brush 30 is shaken and brought into contact with the dust removing portion 34 to scrape off the dust of the brush 30.
  • the dust removing unit 34 moves in the extending direction of the brush 30 (that is, the width direction of the indoor unit) in contact with the brush 30, so that the dust adheres to the brush 30. It is configured to scrape off.
  • the dust removing unit 34 includes a first component 36 and a second component 38.
  • the second component 38 is configured to be removable with respect to the first component 36. The specific configuration of the dust removing unit 34 will be described in detail later.
  • the dust receiving portion 40 is configured in a box shape having an open upper surface.
  • FIG. 7 is a perspective view showing a filter device 3 provided in the main body 2 of the indoor unit 1 in the first embodiment.
  • FIG. 8 is a perspective view showing a state in which the lid 47 provided on the dust receiving portion 40 and the second component 38 of the dust removing portion 34 are removed from the filter device 3.
  • FIG. 9 is a perspective view showing a state in which the dust receiving portion 40 is removed from the filter device 3.
  • the dust receiving portion 40 is provided so as to extend in the width direction of the indoor unit.
  • the dust receiving portion 40 is provided with an opening 40a for taking out the second component 38 removed from the first component 36 of the dust removing portion 34 to the outside.
  • the dust receiving portion 40 is configured such that when the first component 36 and the second component 38 are assembled, the dust removing portion 34 prevents attachment / detachment to / from the filter device 3.
  • FIG. 9 when the second component 38 is removed from the first component 36 in the dust removing portion 34, the dust receiving portion 40 can be attached to and detached from the filter device 3.
  • a suction device (also referred to as an exhaust device) 42 for sucking dust in the dust receiving portion 40 is connected to the end of the dust receiving portion 40.
  • the suction device 42 includes a suction pipe 44 and a suction fan 46 that generates a suction force in the suction pipe 44.
  • a dust suction portion 48 is provided at one end portion 44a of the suction pipe 44.
  • the dust suction unit 48 is connected to a suction hole 40b at the end of the dust receiving unit 40.
  • the other end 44b of the suction pipe 44 is open.
  • the other end 44b of the suction pipe 44 is connected to an exhaust hose (not shown) having one end opened to the outside so that dust passing through the suction pipe 44 can be discharged to the outside.
  • FIG. 10 is a perspective view of the dust removing unit 34.
  • FIG. 11 is an exploded perspective view of the dust removing unit 34.
  • FIG. 12 is a front view of the dust removing unit 34.
  • FIG. 13 is a sectional view taken along line A1-A1 of FIG.
  • the side closer to the suction device 42 is referred to as "front”
  • the side away from the suction device 42 is referred to as "rear”.
  • the dust removing unit 34 has a front blade 34a and a rear blade 34b that scrape off the dust adhering to the brush 30.
  • the front blade 34a and the rear blade 34b extend in directions intersecting (for example, orthogonally) with respect to the extending direction of the brush 30.
  • the front blade 34a and the rear blade 34b are arranged at intervals in the extending direction of the brush 30.
  • the front end portions of the front blade 34a and the rear blade 34b on the suction device 42 side are formed in an edge shape (right angle or acute angle) in order to improve the efficiency of removing dust adhering to the brush 30.
  • the thickness (height) of the front blade 34a is designed so that entangled and collected dust lumps do not wrap around the front blade 34a (for example, 2 mm or more).
  • the dust removing portion 34 is configured such that the first side wall 34c and the second side wall 34d project forward (on the suction device 42 side) from the front end portion of the front blade 34a.
  • the front side space S1 is partitioned by the first side wall 34c, the second side wall 34d, and the front blade 34a.
  • the dust mass scraped from the brush 30 by the front blade 34a is suppressed from protruding from the front space S1 and easily falls on the inner bottom surface 40c of the dust receiving portion 40.
  • the length of the first side wall 34c and the second side wall 34d of the dust removing portion 34 protruding forward from the front blade 34a is, for example, 7 mm or more.
  • At least one of the front blade 34a and the rear blade 34b is formed in an arc shape centered on the rotation axis 32a of the brush holding portion 32.
  • both the front blade 34a and the rear blade 34b are formed in an arc shape centered on the rotation shaft 32a of the brush holding portion 32.
  • a rear space S2 for dropping a lump of dust scraped from the brush 30 by the rear blade 34b is provided between the front blade 34a and the rear blade 34b.
  • the distance between the front blade 34a and the rear blade 34b is designed to be, for example, 14 mm or more so that the dust mass scraped from the brush 30 by the rear blade 34b falls more reliably through the rear space S2.
  • the dust removing portion 34 is arranged within the swing range of the brush 30 when viewed from the extending direction of the brush 30 (the depth direction in FIGS. 5A to 5C), and at least 1 for scraping off the dust adhering to the brush 30. It has two side blades.
  • the dust removing unit 34 has two side blades 34e and 34f extending in the extending direction of the brush 30.
  • the rear space S2 is partitioned by a front blade 34a, a rear blade 34b, and side blades 34e and 34f.
  • the front blade 34a, the rear blade 34b, and the side blades 34e and 34f are made of a material that easily scrapes off dust and has excellent slidability, for example, polyacetal.
  • the brush 30 and the side blades 34e and 34f come into contact with each other, and a mass of dust scraped from the brush 30 by the side blades 34e and 34f is rearward. It falls through the side space S2.
  • the front end portions of the front blade 34a and the rear blade 34b on the suction device 42 side are formed in an edge shape (right angle or acute angle) in order to improve the efficiency of removing dust adhering to the brush 30.
  • the dust removing unit 34 has a guide surface 34 g that inclines or curves downward as it approaches the suction device 42.
  • the guide surface 34g is an inclined surface that inclines downward as it approaches the suction device 42.
  • the inclination angle of the guide surface 34 g with respect to the horizontal plane is, for example, 30 degrees or more and 40 degrees or less.
  • the dust removing unit 34 uses gravity to guide the dust scraped off from the brush 30 by the guiding surface 34g to the inner bottom surface 40c of the dust receiving unit 40 located closer to the suction device 42 than the dust removing unit 34. It is configured.
  • the dust removing unit 34 provides a rear space closer to the suction device 42 than the dust removing unit 34 and a front space away from the suction device 42 from the dust removing unit 34 in the dust receiving unit 40 in a state of being in contact with the brush 30. It has an intake hole 34i for communication. In the first embodiment, the intake hole 34i is opened upward as shown in FIG. In the first embodiment, the front blade 34a, the rear blade 34b, the side blades 34e and 34f, the guide surface 34g, and the intake hole 34i are provided in the first component 36.
  • the dust removing unit 34 has a pressing surface 34h below the guide surface 34g that presses the dust in the dust receiving unit 40 toward the suction device 42 when the dust removing unit 34 moves toward the suction device 42.
  • the pressing surface 34h is designed so that the inclination angle with respect to the vertical direction is smaller than that of the guiding surface 34g.
  • the pressing surface 34h is a plane extending in the vertical direction.
  • 14A to 14D are side views showing how the dust removing portion 34 moves along the inner bottom surface 40c of the dust receiving portion 40.
  • the bottom surface 34j of the dust removing portion 34 facing the inner bottom surface 40c of the dust receiving portion 40 is configured to be inclined or curved so as to approach the inner bottom surface 40c as it approaches the suction device 42 (left side in the figure).
  • the bottom surface 34j of the dust removing portion 34 is a curved surface protruding downward.
  • the inner bottom surface 40c of the dust receiving portion 40 receives the frictional force received by the dust when the dust moves away from the suction device 42, and receives the dust when the dust moves closer to the suction device 42. It is configured to be greater than the frictional force.
  • the inner bottom surface 40c of the dust receiving portion 40 has a saw-like cross section as shown in FIGS. 14A to 14D.
  • the dust mass that has fallen away from the suction device 42 than the dust removing unit 34 moves so that the dust removing unit 34 moves away from the suction device 42, as shown in FIGS. 14A to 14C. Therefore, it becomes easier to move to the suction device 42 side than the dust removing unit 34.
  • the dust removing unit 34 moves so as to approach the suction device 42, so that the dust removing unit 34 can move the dust mass toward the suction device 42 by the pressing surface 34h. it can.
  • the pressing surface 34h and the bottom surface 34j are provided on the second component 38.
  • the dust removing unit 34 Before the cleaning operation of the air filter 18, the dust removing unit 34 is located at the end point position T2 closest to the suction device 42, as shown in FIG. 6A.
  • the dust removing unit 34 may slide to an arbitrarily determined position when the air conditioning operation of the main body 2 is started. Then, a reset operation may be performed at that position by, for example, a limit switch, and the origin position may be recognized.
  • the arbitrarily determined position may be the end point position closest to the suction device 42.
  • the control unit 80 sets the dust removing unit 34 to the dust receiving unit 40 as shown in FIG. 6B.
  • the brush 30 is moved to the suction device 42 or the farthest start position T1 (standby position) in the extending direction of the brush 30. Further, the gear 26 is rotated in the positive direction (counterclockwise in FIG. 4) from the state shown in FIG. As a result, the air filter 18 is conveyed from the first holding space 20A to the second holding space 20B.
  • the tip of the air filter 18 passes between the brush holding portion 32 and the shaft 24, the brush holding portion 32 rotates in the forward direction (counterclockwise in FIG. 4) or in the reverse direction (clockwise in FIG. 4). The tip of the brush 30 comes into contact with the tip of the air filter 18 so as to straddle the net portion.
  • the air filter 18 is further conveyed to the second holding space 20B.
  • the brush holding portion 32 fixes the brush 30 at a position where it comes into contact with the air filter 18, as shown in FIG.
  • the dust adhering to the air filter 18 is blocked by the brush 30 fixed at a fixed position, and is collected on the upstream side of the brush 30 in the transport direction of the air filter 18.
  • the dust collected in the brush 30 and the dust adhering to the air filter 18 are entangled and gathered like a paper twist.
  • the dust adhering to the air filter 18 can be removed.
  • a part of the dust adhering to the brush 30 falls on the inner bottom surface 40c of the dust receiving portion 40.
  • the brush holding portion 32 is rotated in the forward direction (counterclockwise in FIG. 3), and as shown in FIG. 5B, the brush 30 moves to a position where it can contact the front blade 34a and the rear blade 34b of the dust removing portion 34. To do.
  • the control unit 80 moves the dust removing unit 34 so as to approach the suction device 42 (suction hole 40b).
  • the dust adhering to the brush 30 is scraped off by the front blade 34a and the rear blade 34b.
  • the scraped dust is guided to the inner bottom surface 40c of the dust receiving portion 40 by the guiding surface 34g.
  • the dust induced by the guiding surface 34g is located closer to the suction device 42 than the dust removing portion 34 in the extending direction of the brush 30.
  • the dust guided to the inner bottom surface 40c of the dust receiving portion 40 is pressed toward the suction device 42 by the pressing surface 34h of the dust removing portion 34.
  • the moving speed of the dust removing unit 34 is, for example, 5 mm / sec.
  • the control unit 80 is at an arbitrarily determined position such as an intermediate point of the brush 30 when the dust removing unit 34 is moving from the start position T1 in the extending direction of the brush 30.
  • At least one repetitive motion (also referred to as a first repetitive motion) may be performed.
  • the repetitive motion is performed at a shorter distance than the reciprocating motion, for example, the sliding motion is performed with a width of 10 cm to 35 cm.
  • control unit 80 rotates the brush holding unit 32 in the forward and reverse directions around the rotation shaft 32a while the dust removing unit 34 is moving.
  • the brush 30 swings in the direction intersecting the extending direction of the brush 30.
  • the dust mass scraped from the brush 30 is scraped off to the inner bottom surface 40c of the dust receiving portion 40 by the side blades 34e and 34f before becoming excessively large.
  • the control unit 80 drives the suction fan 46 of the suction device 42. To do. As a result, an air flow that serves as a suction force is generated in the suction pipe 44. Due to this air flow, a mass of dust collected in the suction hole 40 (including the vicinity of the suction hole 40b) by the pressing surface 34h of the dust removing portion 34 is discharged to the outside through the suction pipe 44.
  • the control unit 80 repeats at least once (also referred to as a second repeating operation). ) May be performed.
  • the repetitive motion is performed at a shorter distance than the reciprocating motion, for example, the sliding motion is performed with a width of 4 cm to 6 cm.
  • control unit 80 may move the dust removing unit 34 again to the start position T1 (standby position) farthest from the suction device 42.
  • the dust that has fallen on the inner bottom surface 40c of the dust receiving unit 40 which is farther from the suction device 42 than the dust removing unit 34, is more than the dust removing unit 34 as described with reference to FIGS. 14A to 14C. Move to the suction device 42 side.
  • the control unit 80 moves the dust removing unit 34 again so as to approach the suction device 42.
  • the dust that has moved closer to the suction device 42 than the dust removing unit 34 is pressed toward the suction device 42 by the pressing surface 34h of the dust removing unit 34, as shown in FIG. 14D.
  • the control unit 80 drives the suction fan 46 of the suction device 42.
  • an air flow that serves as a suction force is generated in the suction pipe 44. Due to this air flow, a mass of dust collected in the vicinity of the suction hole 40b by the pressing surface 34h of the dust removing portion 34 is discharged to the outside through the suction pipe 44.
  • the movement of the dust removing unit 34 and the suction operation by the suction device 42 may be performed a plurality of times. As a result, the cleaning operation of the air filter 18 is completed.
  • the suction device 42 sucks the dust in the dust receiving portion 40 and discharges it to the outside, but the present invention is not limited to this.
  • the present invention is not limited to this.
  • the user By removing the dust receiving portion 40 from the filter device 3, it is possible for the user to manually discharge the dust in the dust receiving portion 40.
  • the operation of manually discharging the dust in the dust receiving unit 40 will be described in detail.
  • the user removes the lid 47 provided on the dust receiving portion 40, and removes the second component 38 from the first component 36 of the dust removing portion 34. Then, as shown in FIG. 9, the user pulls out the dust receiving portion 40 toward the front. Then, by discarding the dust accumulated inside the dust receiving portion 40 into a trash can or the like, the dust receiving portion 40 can be manually cleaned.
  • the dust removing unit 34 is configured such that the second component 38 can be attached to and detached from the first component 36.
  • the first component 36 is formed with a fitting recess 34 m extending in a direction orthogonal to the sliding operation direction of the dust removing portion 34.
  • the second component 38 is provided with a fitting convex portion 34n that fits with the fitting recess 34m of the first component 36.
  • the first component 36 and the second component 38 configured in this way can be inserted and removed in a direction orthogonal to the direction of the sliding operation, and are fixed to each other by bolts 70.
  • FIG. 15A is an enlarged cross-sectional view of the dust removing portion 34 from which the second component 38 has been removed and the dust receiving portion 40.
  • FIG. 15B the user pulls out the dust receiving portion 40 toward the front. Is possible.
  • a suction hole 40b communicating with the suction device 42 and a sliding lid 49 are provided on the bottom surface of the dust receiving portion 40.
  • the slide-type lid 49 is configured to be slidable, and as shown in FIG. 16B, the suction hole 40b can be closed.
  • the suction hole 40b can be shut off from the suction device 42, and the dust scraped off by the dust receiving portion 40 can be collected without overflowing to the outside of the dust receiving portion 40. Then, by discarding the dust accumulated inside the dust receiving portion 40 into a trash can or the like, the dust receiving portion 40 can be manually cleaned.
  • the dust removing unit 34 is located at the end point position T2 closest to the suction device 42 as shown in FIG. 17A.
  • the control unit 80 moves the dust removing unit 34 to the standby position farthest from the end point position T2, as shown in FIG. 17B.
  • the gear 26 is rotated in the positive direction (counterclockwise in FIG. 4) from the state shown in FIG.
  • the air filter 18 is conveyed from the first holding space 20A to the second holding space 20B.
  • the brush holding portion 32 rotates in the forward direction (counterclockwise in FIG. 4) or in the reverse direction (clockwise in FIG. 4).
  • the tip of the brush 30 comes into contact with the tip of the air filter 18 so as to straddle the net portion.
  • the air filter 18 is further conveyed to the second holding space 20B.
  • the brush holding portion 32 fixes the brush 30 at a position where it comes into contact with the air filter 18, as shown in FIG.
  • the dust adhering to the air filter 18 is blocked by the brush 30 fixed at a fixed position, and is collected on the upstream side of the brush 30 in the transport direction of the air filter 18.
  • the dust collected in the brush 30 and the dust adhering to the air filter 18 are entangled and gathered like a paper twist.
  • the dust adhering to the air filter 18 can be removed.
  • a part of the dust adhering to the brush 30 falls on the inner bottom surface 40c of the dust receiving portion 40.
  • the brush holding portion 32 is rotated in the forward direction (counterclockwise in FIG. 3), and as shown in FIG. 5B, the brush 30 moves to a position where it can contact the front blade 34a and the rear blade 34b of the dust removing portion 34. To do.
  • control unit 80 moves the dust removing unit 34 so as to approach the end point position T2.
  • the dust adhering to the brush 30 is scraped off by the front blade 34a and the rear blade 34b to the dust receiving portion 40.
  • control unit 80 may move the dust removing unit 34 to the standby position again after the dust removing unit 34 has moved to the end point position T2. As a result, the dust left behind on the brush 30 can be scraped off. Further, by repeating the reciprocating operation as described above a plurality of times, the dust left behind by the brush 30 can be completely scraped off to the dust receiving portion 40.
  • control unit 80 may constantly swing the brush 30 during the operation of the dust removing unit 34, as shown in FIGS. 5A to 5C. As a result, the dust lumps scraped from the brush 30 can be evenly scraped off to the inner bottom surface 40c of the dust receiving portion 40 before becoming excessively large.
  • the user removes the dust receiving portion 40 from the filter device 3 and collects the dust inside. By throwing the waste in a trash can or the like, the dust receiving portion 40 can be manually cleaned.
  • the air conditioner according to the present embodiment has a filter cleaning function for cleaning dust adhering to the air filter 18. Further, the air conditioner is provided so as to extend in the width direction of the air filter 18, and is located below the brush 30 for removing dust adhering to the air filter 18 and the extending direction of the brush 30. A dust receiving portion 40 that is provided so as to extend to the brush 30 and receives the dust removed by the brush 30, and moves in the width direction in the dust receiving portion 40 to scrape off the dust adhering to the brush 30 and to receive the dust.
  • the dust removing unit 34 that moves the dust scraped off into the unit 40, the suction device 42 that sucks the dust in the dust receiving unit 40, and the air filter cleaning mode that cleans the dust adhering to the air filter 18 are executed. It includes a control unit 80. When the control unit 80 starts the operation of scraping the dust adhering to the brush 30 into the dust receiving unit 40 by the dust removing unit 34 in the air filter cleaning mode, the dust removing unit 34 is located at the starting position T1. To control.
  • the dust removing portion 34 moves in the extending direction of the brush 30 in a state of being in contact with the brush 30, so that the dust adhering to the brush 30 is easily entangled with each other and gathered, and the dust removing efficiency is improved. Further, since the contact portion between the brush 30 and the dust removing portion 34 can be reduced to reduce the frictional force received by the dust removing portion 34 from the brush 30, the driving force for moving the dust removing portion 34 can be reduced. it can. Further, the size of the dust removing portion 34 itself can be reduced. Further, the cleaning time is shortened by moving the dust removing unit 34 to the starting position T1 (standby position) before the dust removing unit 34 starts the operation of scraping off the dust adhering to the brush 30. be able to.
  • the start position T1 may be the position farthest from the suction device 42 in the extending direction of the brush 30 in the dust receiving portion 40.
  • the dust adhering to the brush 30 can be efficiently scraped off to the dust receiving portion 40.
  • the scraped dust can be efficiently moved to the suction device 42 side.
  • control unit 80 moves the dust removing unit 34 from the start position T1 in the extending direction of the brush 30, and in the middle of the operation of scraping off the dust adhering to the brush 30, the dust removing unit The 34 may be controlled to operate in the first repetitive motion.
  • control unit 80 moves the dust removing unit 34 from the start position T1 in the extending direction of the brush 30, and in the middle of the operation of scraping off the dust adhering to the brush 30, the dust removing unit After the 34 is inverted to return to the start position T1, the dust removing unit 34 may be controlled to move in the width direction of the brush 30 again.
  • the dust mass adhering to the brush 30 can be scraped off to the dust receiving portion 40 before it becomes excessively large.
  • the amount of dust left behind on the brush 30 is reduced.
  • control unit 80 uses the suction device 42 when the dust removing unit 34 moves in the extending direction of the brush 30 and reaches the suction hole 40b provided in the dust receiving unit 40. It may be controlled to drive.
  • suction hole 40b also includes “in the vicinity of the suction hole 40b”.
  • the dust in the dust receiving portion 40 can be discharged to the outside of the room more efficiently and in a short time.
  • the control unit 80 reaches the dust removing unit 34. May be controlled to operate in a second iterative manner.
  • “in the suction hole 40b” also includes “in the vicinity of the suction hole 40b”.
  • the dust scraped off by the dust receiving portion 40 can be more efficiently discharged to the outside in a short time.
  • control unit 80 moves the dust removing unit 34 to the start position T1 after the operation of the suction device 42 is completed, and then brushes again to the suction hole 40b provided in the dust receiving unit 40. It may be controlled to move in the extending direction of 30.
  • the dust that has fallen on the inner bottom surface 40c of the dust receiving unit 40 that is farther from the suction device 42 than the dust removing unit 34 is more than the dust removing unit 34 as described with reference to FIGS. 14A to 14C. Move to the suction device 42 side. Therefore, dust does not remain in the dust receiving portion 40, and the removal efficiency is improved.
  • control unit 80 may control the brush 30 to swing while the dust removing unit 34 moves in the extending direction of the brush 30.
  • the origin position of the dust removing unit 34 may be recognized at an arbitrarily determined position at the start of the air conditioning operation of the air conditioner.
  • the present disclosure can be carried out even when the discharge pipe cannot be pierced through the wall from the room to the outside.
  • the control unit 80 moves the dust removing unit 34 from the start position T1 (standby position) to the brush 30. It is moved in the extending direction to the end point position T2 of the dust removing portion 34. As a result, the dust adhering to the brush 30 can be efficiently scraped off to the dust receiving portion 40.
  • the control unit 80 when the dust in the dust receiving unit 40 is manually discharged, the control unit 80 has the dust removing unit 34 from the start position T1 (standby position) to the brush 30. After moving in the extending direction and operating to the end point position T2, one reciprocating operation may be performed to return to the start position T1. As a result, the dust adhering to the brush 30 can be more efficiently scraped off to the dust receiving portion 40.
  • the control unit 80 may perform the reciprocating operation of the dust removing unit 34 a plurality of times. As a result, the dust adhering to the brush 30 can be efficiently scraped off to the dust receiving portion 40.
  • control unit 80 may swing the brush 30 while the dust removing unit 34 is operating. As a result, the dust lumps adhering to the brush 30 can be scraped off to the dust receiving portion 40 and evenly to the inner bottom surface 40c before becoming excessively large.
  • the first embodiment has been described as an example of the technology disclosed in the present application, but the present invention is not limited to this.
  • the brush 30 is configured to swing in a direction intersecting the extending direction of the brush 30, but the present disclosure is not limited to this. That is, the brush 30 does not necessarily have to be configured to swing in a direction intersecting the extending direction of the brush 30.
  • the dust removing unit 34 has a front blade 34a and a rear blade 34b extending in a direction intersecting the extending direction of the brush 30, but the present disclosure is not limited to this.
  • the dust removing unit 34 may have one blade or three or more blades extending in a direction intersecting the extending direction of the brush 30.
  • the dust removing unit 34 is configured to scrape off the dust adhering to the brush 30 by the front blade 34a, the rear blade 34b, and the side blades 34e and 34f. Is not limited to this.
  • the dust removing unit 34 may be configured to scrape off the dust adhering to the brush 30 by another structure such as an etiquette brush (registered trademark).
  • the dust removing unit 34 is moved to the suction device 42 (including the vicinity of the suction device 42), and then the dust mass is sucked by the suction device 42.
  • the control unit 80 moves the dust removing unit 34 to the suction device 42 (including the vicinity of the suction device 42), then moves the dust removing unit 34 so as to be separated from the suction device 42 by, for example, several cm, and then moves the dust removing unit 34.
  • the dust mass may be controlled to be sucked by the suction device 42.
  • the guide surface 34 g is shown as a flat surface, but the present disclosure is not limited to this.
  • the guide surface 34 g may have an uneven structure. According to this structure, it is possible to suppress the dust scraped off from the brush 30 from adhering to the guide surface 34 g, and the dust removal efficiency is further improved.
  • the air conditioner according to the first embodiment may further include a driving device 50 that moves the dust removing unit 34 in the extending direction of the brush 30.
  • the drive device 50 includes a drive pulley 52, a driven pulley 54, a wire 56 laid around the drive pulley 52 and the driven pulley 54, and a motor 58 for rotating the drive pulley 52.
  • a drive block 60 attached to a wire 56.
  • the drive pulley 52 rotates, the wire 56 is sent to the driven pulley 54 side, and the driven pulley 54 rotates.
  • the drive block 60 can move between the drive pulley 52 and the driven pulley 54.
  • the drive device 50 is provided at a position facing the dust removing portion 34 via a cover member 62 extending in the extending direction (left-right direction in FIG. 18) of the brush 30.
  • the cover member 62 is made of, for example, a flat plate.
  • the active clean filter 11 may be provided on the front side of the air filter 18 of the main body 2.
  • the control unit 80 provided in the air conditioner determines that the air in the room in which the indoor unit 1 is provided is dirty, the control unit 80 moves the active clean filter 11 to the upper surface side of the air filter 18.
  • the indoor air is sucked through the active clean filter 11 and the air filter 18, and finer dirt in the air is collected to purify the indoor air.
  • the user when the dust is manually discharged, as shown in FIG. 19, the user opens the front panel 4, moves the active clean filter 11 upward, and then opens the front.
  • the part 2a is opened.
  • the user removes the lid 47 attached to the opening 40a of the dust receiving portion 40, and the second component 38 of the dust removing portion 34 is removed from the first component 36 through the opening 40a.
  • the control unit 80 is composed of an arithmetic processing unit that executes a control program.
  • the arithmetic processing unit is composed of, for example, at least one of a CPU (Central Processing Unit) and an MPU (Micro Processing Unit).
  • the air conditioner according to the present disclosure can improve the dust removal efficiency, and is therefore useful as various air conditioners including air conditioners used in ordinary households.
PCT/JP2020/028209 2019-07-29 2020-07-21 空気調和機 WO2021020225A1 (ja)

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Applications Claiming Priority (2)

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JP2019-138761 2019-07-29
JP2019138761A JP7316491B2 (ja) 2019-07-29 2019-07-29 空気調和機

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JP2010071524A (ja) * 2008-09-17 2010-04-02 Mitsubishi Electric Corp エアフィルター、及びそれをもちいたエアフィルター清掃装置並びに空気調和機
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JP7316491B2 (ja) 2023-07-28
CN113439183B (zh) 2022-12-16
JP2021020170A (ja) 2021-02-18

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