WO2019220489A1 - Climatiseur - Google Patents

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Publication number
WO2019220489A1
WO2019220489A1 PCT/JP2018/018514 JP2018018514W WO2019220489A1 WO 2019220489 A1 WO2019220489 A1 WO 2019220489A1 JP 2018018514 W JP2018018514 W JP 2018018514W WO 2019220489 A1 WO2019220489 A1 WO 2019220489A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
brush
indoor
cleaning
heat exchanger
Prior art date
Application number
PCT/JP2018/018514
Other languages
English (en)
Japanese (ja)
Inventor
光 梅澤
智大 加藤
Original Assignee
日立ジョンソンコントロールズ空調株式会社
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 日立ジョンソンコントロールズ空調株式会社 filed Critical 日立ジョンソンコントロールズ空調株式会社
Priority to PCT/JP2018/018514 priority Critical patent/WO2019220489A1/fr
Priority to CN201880001789.9A priority patent/CN110520675B/zh
Priority to JP2018536903A priority patent/JP6701353B2/ja
Priority to ES201890070A priority patent/ES2731249A1/es
Priority to FR1860549A priority patent/FR3081036B1/fr
Priority to TW107140525A priority patent/TWI686542B/zh
Publication of WO2019220489A1 publication Critical patent/WO2019220489A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • 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
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/22—Cleaning ducts or apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to an air conditioner.
  • Patent Document 1 describes a device including a “fan cleaning device for removing dust from a fan”. Further, FIG. 1 of Patent Document 1 describes a configuration in which a fan cleaning device is installed in the vicinity of an air outlet of an indoor fan.
  • the fan cleaning unit is in contact with the fan before the fan starts rotating. For this reason, when the fan starts rotating, a load is applied to the fan cleaning unit, and the fan cleaning unit is likely to be deteriorated. Further, when the fan cleaning unit is deteriorated, the fan cleaning cannot be sufficiently performed. .
  • an object of the present invention is to provide an air conditioner that can appropriately perform fan cleaning even when the fan cleaning unit is deteriorated.
  • an air conditioner includes an indoor heat exchanger, a blower fan, a fan cleaning unit that cleans the blower fan with a brush, and a control unit that causes the fan cleaning unit to contact the blower fan.
  • the control unit includes a brush angle changing unit that changes the angle of the brush that contacts the blower fan.
  • the fan can be properly cleaned even when the fan cleaning section is deteriorated.
  • Drawing 1 is an explanatory view showing refrigerant circuit Q of air harmony machine 100 concerning an embodiment.
  • the solid arrows in FIG. 1 indicate the refrigerant flow during the heating operation.
  • the broken line arrows in FIG. 1 indicate the flow of the refrigerant during the cooling operation.
  • the air conditioner 100 includes a compressor 11, an outdoor heat exchanger 12, an outdoor fan 13, and an expansion valve 14.
  • the air conditioner 100 includes an indoor heat exchanger (heat exchanger) 15, an indoor fan (blower fan) 16, and a four-way valve 17 in addition to the above-described configuration.
  • the compressor 11 is a device that compresses a low-temperature and low-pressure gas refrigerant by driving the compressor motor 11a and discharges it as a high-temperature and high-pressure gas refrigerant.
  • the outdoor heat exchanger 12 is a heat exchanger in which heat exchange is performed between the refrigerant flowing through the heat transfer tube (not shown) and the outside air sent from the outdoor fan 13.
  • the outdoor fan 13 is a fan that sends outside air to the outdoor heat exchanger 12 by driving the outdoor fan motor 13a, and is installed in the vicinity of the outdoor heat exchanger 12.
  • the expansion valve 14 is a valve that depressurizes the refrigerant condensed in the “condenser” (the outdoor heat exchanger 12 in the cooling operation and the indoor heat exchanger 15 in the heating operation). Note that the refrigerant decompressed in the expansion valve 14 is guided to an “evaporator” (the indoor heat exchanger 15 in the cooling operation, and the outdoor heat exchanger 12 in the heating operation).
  • the indoor heat exchanger 15 performs heat exchange between the refrigerant flowing through the heat transfer tube g (see FIG. 2) and the indoor air sent from the indoor fan 16 (air in the air-conditioning target space). It is a vessel.
  • the indoor fan 16 is a fan that sends room air into the indoor heat exchanger 15 by driving an indoor fan motor 16m (see FIG. 5), and is installed in the vicinity of the indoor heat exchanger 15.
  • the four-way valve 17 is a valve that switches the flow path of the refrigerant according to the operation mode of the air conditioner 100. For example, during the cooling operation (see the broken line arrow in FIG. 1), the compressor 11, the outdoor heat exchanger 12 (condenser), the expansion valve 14, and the indoor heat exchanger 15 (evaporator) are replaced with the four-way valve 17. In the refrigerant circuit Q that is sequentially connected in an annular manner through the refrigerant, the refrigerant circulates in the refrigeration cycle.
  • the compressor 11, the indoor heat exchanger 15 (condenser), the expansion valve 14, and the outdoor heat exchanger 12 (evaporator) are replaced by the four-way valve 17.
  • the refrigerant circuit Q that is sequentially connected in an annular manner through the refrigerant, the refrigerant circulates in the refrigeration cycle.
  • the compressor 11, the outdoor heat exchanger 12, the outdoor fan 13, the expansion valve 14, and the four-way valve 17 are installed in the outdoor unit Uo.
  • the indoor heat exchanger 15 and the indoor fan 16 are installed in the indoor unit Ui.
  • FIG. 2 is an explanatory diagram illustrating a side cross-sectional configuration of the indoor unit Ui included in the air conditioner 100 according to the embodiment.
  • the indoor unit Ui includes a dew tray 18, a housing base 19, filters 20 a and 20 b, a front panel 21, left and right wind direction plates 22, and up and down wind directions.
  • a plate 23 and a fan cleaning unit 24 are provided.
  • FIG. 2 illustrates a state where the indoor fan 16 is not cleaned by the fan cleaning unit 24.
  • the indoor heat exchanger 15 has a plurality of fins f and a plurality of heat transfer tubes g penetrating the fins f. Moreover, if it demonstrates from another viewpoint, the indoor heat exchanger 15 has the front side indoor heat exchanger 15a and the back side indoor heat exchanger 15b. The front indoor heat exchanger 15 a is disposed on the front side of the indoor fan 16. On the other hand, the rear indoor heat exchanger 15 b is disposed on the rear side of the indoor fan 16. And the upper end part of the front side indoor heat exchanger 15a and the upper end part of the rear side indoor heat exchanger 15b are connected.
  • the dew receiving tray 18 receives the condensed water of the indoor heat exchanger 15, and is disposed below the indoor heat exchanger 15 (the front indoor heat exchanger 15a in the example shown in FIG. 2).
  • the indoor fan 16 is, for example, a cylindrical cross flow fan, and is disposed in the vicinity of the indoor heat exchanger 15.
  • the indoor fan 16 includes a plurality of fan blades 16a, a partition plate 16b on which these fan blades 16a are installed, and an indoor fan motor 16m (see FIG. 5) as a drive source.
  • the indoor fan 16 is preferably coated with a hydrophilic coating agent.
  • a coating material for example, a material obtained by adding a binder (silicon compound having a hydrolyzable group), butanol, tetrahydrofuran, and an antibacterial agent to isopropyl alcohol-dispersed silica sol which is a hydrophilic material may be used.
  • the coating agent described above also functions as an antistatic agent for the indoor fan 16.
  • the housing base 19 shown in FIG. 2 is a housing in which devices such as the indoor heat exchanger 15 and the indoor fan 16 are installed.
  • the filter 20 a is for removing dust from the air toward the front air inlet h ⁇ b> 1 and is installed on the front side of the indoor heat exchanger 15.
  • the filter 20b removes dust from the air toward the upper air suction port h2, and is installed on the upper side of the indoor heat exchanger 15.
  • the front panel 21 is a panel installed so as to cover the filter 20a on the front side, and is rotatable to the front side with the lower end as an axis.
  • the front panel 21 may be configured not to rotate.
  • the left and right wind direction plate 22 is a plate-like member that adjusts the flow in the left and right direction of the air blown into the room as the indoor fan 16 rotates.
  • the left and right wind direction plates 22 are disposed in the blowing air path h3 and are rotated in the left and right directions by a left and right wind direction plate motor 25 (see FIG. 5).
  • the vertical wind direction plate 23 is a plate-like member that adjusts the vertical flow of air blown into the room as the indoor fan 16 rotates.
  • the vertical wind direction plate 23 is disposed in the vicinity of the air outlet h4, and is rotated in the vertical direction by the vertical wind direction plate motor 26 (see FIG. 5).
  • the air sucked through the air suction ports h1 and h2 exchanges heat with the refrigerant flowing through the heat transfer tube g of the indoor heat exchanger 15, and the heat-exchanged air is guided to the blowout air path h3.
  • the air flowing through the blowout air path h3 is guided in a predetermined direction by the left and right airflow direction plates 22 and the vertical airflow direction plate 23, and further blown out into the room through the air outlet h4.
  • the indoor heat exchanger 15 is washed away with water after the indoor fan 16 is cleaned using the fan cleaning unit 24 described below.
  • the fan cleaning unit 24 shown in FIG. 2 cleans the indoor fan 16 and is disposed between the indoor heat exchanger 15 and the indoor fan 16. More specifically, the fan cleaning unit 24 is disposed in the recess r of the front indoor heat exchanger 15a that has a ⁇ shape when viewed in a longitudinal section. In the example shown in FIG. 2, an indoor heat exchanger 15 (a lower portion of the front indoor heat exchanger 15 a) is present below the fan cleaning unit 24, and a dew tray 18 is present. A part of the fan cleaning unit 24 is made of nylon, for example.
  • FIG. 3 is a perspective view in which a part of the indoor unit included in the air conditioner 100 according to the embodiment is cut away.
  • the fan cleaning unit 24 includes a fan cleaning motor 24m (see FIG. 5) in addition to the shaft portion 24a and the brush 24b shown in FIG.
  • the shaft portion 24a is a rod-like member parallel to the axial direction of the indoor fan 16, and both ends thereof are pivotally supported.
  • the brush 24b removes dust adhering to the fan blade 16a and is installed on the shaft portion 24a.
  • the fan cleaning motor 24m (see FIG. 5) is a stepping motor, for example, and has a function of rotating the shaft portion 24a by a predetermined angle.
  • the fan cleaning motor 24m (see FIG. 5) is driven and the indoor fan so that the brush 24b contacts the indoor fan 16 (see FIG. 10A). 16 is reversely rotated.
  • the fan cleaning motor 24m is driven again, the brush 24b is rotated, and the brush 24b is separated from the indoor fan 16 (see FIG. 2). .
  • the tip of the brush 24b faces the indoor heat exchanger 15 as shown in FIG. Specifically, except when the indoor fan 16 is being cleaned (including during normal air-conditioning operation), the brush 24b is spaced apart from the indoor fan 16 in a state of being directed in the horizontal direction (substantially horizontal). The reason why the fan cleaning unit 24 is arranged in this way will be described with reference to FIG.
  • FIG. 4 is an explanatory diagram showing the air flow in the vicinity of the fan cleaning unit 24 during the air conditioning operation in the air conditioner 100 according to the embodiment.
  • the direction of each arrow shown in FIG. 4 indicates the direction in which air flows.
  • the length of each arrow indicates the speed of air flow.
  • the indoor fan 16 rotates forward, and the air passing through the gaps between the fins f of the front indoor heat exchanger 15a is directed to the indoor fan 16.
  • air flows laterally (substantially horizontal) toward the indoor fan 16, as shown in FIG.
  • the fan cleaning unit 24 is disposed in the recess r with the brush 24b facing in the lateral direction.
  • the direction of the brush 24b is parallel to the direction of air flow.
  • the fan cleaning unit 24 hardly interferes with the air flow.
  • the fan cleaning unit 24 is arranged in the upstream area, not in the middle or downstream area (near the air outlet h4 shown in FIG. 2) of the air flow when the indoor fan 16 is rotating forward.
  • the air flowing in the lateral direction along the brush 24b is accelerated by the fan blade 16a, and the accelerated air is directed to the air outlet h4 (see FIG. 2).
  • the fan cleaning part 24 is arrange
  • FIG. 5 is a block diagram illustrating control functions of the air conditioner 100 according to the embodiment.
  • the indoor unit Ui illustrated in FIG. 5 includes a remote control transmission / reception unit 27 and an indoor control circuit 31 in addition to the above-described configuration.
  • the remote control transmission / reception unit 27 exchanges predetermined information with the remote control 40 (air conditioning control terminal, see FIG. 7).
  • the indoor control circuit 31 includes electronic circuits such as a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and various interfaces. Then, the program stored in the ROM is read out and expanded in the RAM, and the CPU executes various processes.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the indoor control circuit 31 includes a storage unit 31a and an indoor control unit 31b.
  • the storage unit 31a stores data received via the remote control transmission / reception unit 27, detection values of various sensors (not shown), and the like.
  • the indoor control unit 31b executes the fan cleaning motor 24m, the indoor fan motor 16m, the left / right airflow direction plate motor 25, the up / down airflow direction plate motor 26, and the like based on the data stored in the storage unit 31a.
  • the indoor control unit 31b has a function of bringing the fan cleaning unit 24 into contact with the indoor fan 16 in addition to the execution function of the motor and the like, and automatically changes the angle of the brush 24b in contact with the indoor fan 16 (for example, 11), the brush angle changing means 31b1 (brush angle adjustment mode) having the function of displaying the angle of the brush 24b on the remote controller 40 and changing the brush angle according to an instruction from the remote controller 40, and the indoor fan 16
  • the cleaning time changing means 31b2 cleaning time having a function of automatically changing the cleaning time of the indoor fan 16 and a function of displaying the cleaning time of the indoor fan 16 on the remote controller 40 and changing the cleaning time of the indoor fan 16 according to an instruction from the remote controller 40 Adjustment mode).
  • the storage unit 31a In the storage unit 31a, the number of operations of the air conditioner 100 and / or the accumulated operation time is stored.
  • the indoor control unit 31b changes the angle of the brush 24b or the rotation speed of the indoor fan 16 based on the number of operations or / and the accumulated operation time.
  • the outdoor unit Uo includes an outdoor control circuit 32 in addition to the configuration described above.
  • the outdoor control circuit 32 includes electronic circuits such as a CPU, a ROM, a RAM, and various interfaces, and is connected to the indoor control circuit 31 via a communication line.
  • the outdoor control circuit 32 includes a storage unit 32a and an outdoor control unit 32b.
  • the storage unit 32a stores data received from the indoor control circuit 31 in addition to a predetermined program.
  • the outdoor control unit 32b controls the compressor motor 11a, the outdoor fan motor 13a, the expansion valve 14, and the like based on the data stored in the storage unit 32a.
  • the indoor control circuit 31 and the outdoor control circuit 32 are collectively referred to as a “control unit 30”.
  • FIG. 6A is an explanatory diagram showing a change angle of the brush 24b by the brush angle changing means 31b1, and is a case where the direction of the brush 24b is downward with respect to the brush reference line BL.
  • FIG. 6B is an explanatory diagram showing a change angle of the brush 24b by the brush angle changing means 31b1, and is a case where the orientation of the brush 24b is upward with respect to the brush reference line.
  • a brush reference line BL that connects the center 24c of the rotation shaft of the fan cleaning unit 24 and the center 16c of the rotation shaft of the indoor fan 16 is defined.
  • an angle formed by the brush reference line BL and the brush 24b with the center 24c as a vertex is ⁇ .
  • the brush 24b shows an angle close to the initial angle, and is downward (for example, + ⁇ degrees) with respect to the brush reference line BL.
  • the case where the brush 24b is deteriorated is assumed to be upward with respect to the brush reference line (for example, ⁇ degrees).
  • the brush angle changing means 31b1 starts from the state shown in FIG. 6A, and in accordance with the deterioration tendency of the brush 24b, the angle of the brush 24b is set every ⁇ in the direction of the brush 24b shown in FIG. It is good to change.
  • the brush angle changing means 31b1 starts from the state shown in FIG. 6B, and in the direction of the brush 24b shown in FIG. It is preferable to change the angle of 24b for each ⁇ .
  • the change of the angle of the brush 24b can be changed in any case before the indoor fan 16 rotates or during the rotation of the indoor fan 16.
  • FIG. 7 is an explanatory diagram showing an appearance of the remote control 40 of the air conditioner 100 according to the embodiment.
  • the remote controller 40 air conditioning control terminal
  • the remote controller 40 includes a display unit 41, a cooling button 42, a heating button 43, a stop button 44, an up / down key 45 (+ -key), a function button 46, a setting button 47, and the like.
  • the remote controller 40 is operated by a user, and transmits an infrared signal to the remote controller transmission / reception unit 27 (see FIG. 5) of the indoor unit Ui.
  • the contents of the signal are various commands such as an operation request, a change in set temperature, a timer, an operation mode change, and a stop request.
  • the air conditioner AC can perform at least indoor cooling, heating, dehumidification, and the like based on these signals. Moreover, you may provide other air conditioning functions, such as air purification. That is, the air conditioner AC can adjust indoor air in various ways.
  • the display unit 41 displays a current operating state.
  • a function for example, fan cleaning mode
  • the set content is changed with the up / down key 45.
  • the brush angle adjustment mode the angle of the brush 24b (see FIG. 8A) is changed.
  • the cleaning time adjustment mode the cleaning time of the indoor fan 16 (see FIG. 8B) is changed.
  • the display screens shown in FIGS. 8A and 8B are automatically displayed as appropriate on the remote controller 40 so that the user or the service person of the air conditioner can adjust the brush angle or the cleaning time. It is good to do so.
  • FIG. 8A is an explanatory diagram showing a display example of the fan cleaning mode, in the case of brush angle adjustment.
  • FIG. 8B is an explanatory diagram illustrating a display example of the fan cleaning mode, in the case of cleaning time adjustment.
  • the remote controller 40 displays the angle of the brush 24b on the display unit 41, displays the brush angle adjustment mode in which the angle of the brush 24b can be adjusted, the cleaning time of the indoor fan 16 on the display unit 41, and the cleaning time of the indoor fan 16 There is a cleaning time adjustment mode and the like that can be adjusted.
  • the brush angle adjustment value n corresponds to +1, the brush angle ⁇ is ⁇ 0 ⁇ , and + is pressed twice (+2) ),
  • the brush angle adjustment value n corresponds to +2, the brush angle ⁇ is ⁇ 0 -2 ⁇ , and when-is pressed once ( ⁇ 1), the brush angle adjustment value n corresponds to ⁇ 1,
  • the brush angle ⁇ is ⁇ 0 + ⁇ , and when ⁇ is pressed twice ( ⁇ 2), the brush angle adjustment value n corresponds to ⁇ 2, and the brush angle ⁇ is ⁇ 0 + 2 ⁇ .
  • the predetermined angle ⁇ is stored in advance in the storage unit 31a (see FIG. 5) as 0.5 degrees, 1 degree, and the like.
  • the cleaning time can be adjusted every predetermined time (for example, ⁇ CT) by selecting with the up / down key 45. That is, the cleaning time CT is the initial cleaning time CT 0 , the cleaning time adjustment value m, and the cleaning time predetermined time ⁇ CT.
  • CT CT 0 + m ⁇ CT (2) Will be changed as
  • the cleaning time adjustment value m corresponds to +1
  • the cleaning time CT is CT 0 + ⁇ CT
  • the cleaning time adjustment value m corresponds to +2
  • the cleaning is performed.
  • the time CT is CT 0 + 2 ⁇ CT, ⁇ 1
  • the cleaning time adjustment value m corresponds to ⁇ 1
  • the cleaning time CT is CT 0 ⁇ CT, ⁇ 2, the cleaning time adjustment value m corresponds to ⁇ 2,
  • the cleaning time CT is CT 0 -2 ⁇ CT.
  • the predetermined time ⁇ CT is stored in advance in the storage unit 31a (see FIG. 5) as 3 seconds, 5 seconds, or the like.
  • the control unit 30 may make an announcement “start cleaning the indoor fan” via the audio unit of the remote controller 40.
  • the user can easily adjust the brush angle and the cleaning time during “fan cleaning”.
  • the brush angle adjustment and the cleaning time adjustment can be changed even when “fan cleaning” is not being performed. Details of the brush angle adjustment and the cleaning time adjustment shown in FIGS. 8A and 8B will be described later (see FIG. 11).
  • FIG. 9 is a flowchart showing a control process executed by the control unit 30 of the air conditioner 100 according to the embodiment (see FIG. 2 as appropriate).
  • the air conditioning operation is not performed at the time of “START” in FIG. 9 and that the tip of the brush 24b faces the front indoor heat exchanger 15a (the state shown in FIG. 2).
  • step S101 of FIG. 9 the control unit 30 cleans the indoor fan 16 by the fan cleaning unit 24.
  • the trigger for starting the cleaning of the indoor fan 16 includes, for example, a condition that the accumulated time of the air conditioning operation from the previous cleaning reaches a predetermined time, but is not limited to a specific one. A state during cleaning of the indoor fan 16 will be described with reference to FIG. 10A.
  • FIG. 10A is an explanatory diagram illustrating a state in which the indoor fan 16 is being cleaned in the air conditioner 100 according to the embodiment.
  • the indoor heat exchanger 15, the indoor fan 16, and the dew tray 18 are shown, and the other members are not shown.
  • the control unit 30 rotates (reversely rotates) the indoor fan 16 in the opposite direction to that during normal air-conditioning operation.
  • the indoor fan 16 reaches the set rotation speed Rc, the brush 24b of the fan cleaning unit 24 is changed to a brush angle changing unit.
  • the indoor fan 16 is brought into contact with the change angle at 31b1 or the change angle instructed from the remote controller 40.
  • control unit 30 rotates the brush 24b about 180- ⁇ ° about the shaft portion 24a from the state where the tip of the brush 24b faces the indoor heat exchanger 15 (see FIG. 2) (see FIG. 6A).
  • the tip of the brush 24b faces the indoor fan 16 (see FIG. 10A).
  • the brush 24 b comes into contact with the fan blade 16 a of the indoor fan 16.
  • the indoor heat exchanger 15 (the front indoor heat exchanger 15a) is located below the contact position K when the fan cleaning unit 24 is in contact with the indoor fan 16. And a dew pan 18 are also present.
  • the tip of the brush 24b bends as the fan blade 16a moves, and the brush 24b is pressed so as to stroke the back of the fan blade 16a.
  • the dust collected near the tip of the fan blade 16a (the end in the radial direction) is removed by the brush 24b.
  • dust tends to accumulate near the tip of the fan blade 16a. This is because during the air-conditioning operation in which the indoor fan 16 is rotating forward (see FIG. 4), air hits the vicinity of the tip of the belly of the fan blade 16a, and dust adheres to the vicinity of the tip. The air hitting the vicinity of the tip of the fan blade 16a passes through the gap between the adjacent fan blades 16a, 16a so as to follow the curved surface of the fan blade 16a.
  • the brush 24b of the fan cleaning unit 24 is changed by the brush angle changing means 31b1 or the remote control.
  • the brush 24b of the fan cleaning unit 24 is brought into contact with the fan blade 16a at a change angle instructed by 40.
  • the brush 24b comes into contact with the vicinity of the front end of the fan blade 16a, and dust accumulated near the front end of the fan blade 16a is removed.
  • most of the dust accumulated in the indoor fan 16 can be removed.
  • the dust j removed from the indoor fan 16 by the brush 24b is lightly pressed against the front indoor heat exchanger 15a by wind pressure. Further, the dust j described above falls to the dew tray 18 along the inclined surface (edge of the fin f) of the front indoor heat exchanger 15a (see the arrow in FIG. 10A). Therefore, the dust j hardly adheres to the back surface of the up-and-down wind direction plate 23 (see FIG. 2) through a minute gap between the indoor fan 16 and the dew tray 18. This can prevent the dust j from being blown into the room during the next air conditioning operation.
  • control unit 30 may drive the indoor fan 16 at a medium / high speed rotation speed or drive the indoor fan 16 at a low speed rotation speed.
  • the range of the rotational speed in the middle / high speed range of the indoor fan 16 is, for example, 300 min ⁇ 1 (300 rpm) or more and less than 1700 min ⁇ 1 (1700 rpm).
  • the range of the rotational speed in the low speed region of the indoor fan 16 is, for example, not less than 100 min ⁇ 1 (100 rpm) and less than 300 min ⁇ 1 (300 rpm). Thus, by rotating the indoor fan 16 in the low speed region, the indoor fan 16 can be cleaned with low noise.
  • step S102 the control unit 30 moves the fan cleaning unit 24 in step S102. That is, the control unit 30 rotates the brush 24b about 180- ⁇ ° around the shaft portion 24a (see FIG. 6A) from the state where the tip of the brush 24b faces the indoor fan 16 (see FIG. 10A). The front end of 24b faces the indoor heat exchanger 15 (see FIG. 10B). Thereby, it is possible to prevent the fan cleaning unit 24 from obstructing the air flow during the subsequent air conditioning operation.
  • step S103 the control unit 30 sequentially performs freezing and thawing of the indoor heat exchanger 15.
  • the control unit 30 causes the indoor heat exchanger 15 to function as an evaporator, causes the indoor heat exchanger 15 to frost and freeze moisture contained in the air taken into the indoor unit Ui.
  • the process of freezing the indoor heat exchanger 15 is included in the matter of “attaching condensed water” to the indoor heat exchanger 15.
  • the control unit 30 When the indoor heat exchanger 15 is frozen, the control unit 30 preferably lowers the evaporation temperature of the refrigerant flowing into the indoor heat exchanger 15. That is, the control unit 30 causes the indoor heat exchanger 15 to function as an evaporator, and when the indoor heat exchanger 15 is frozen (condensed water is attached), the evaporation temperature of the refrigerant is higher than during normal air conditioning operation. The temperature of the refrigerant flowing into the indoor heat exchanger 15 is adjusted so as to be low.
  • control unit 30 causes the refrigerant having a low pressure and a low evaporation temperature to flow into the indoor heat exchanger 15 by reducing the opening of the expansion valve 14 (see FIG. 1).
  • frost and ice symbol i shown in FIG. 10B
  • the indoor heat exchanger 15 can be washed away with a large amount of water during the subsequent thawing.
  • region located under the fan cleaning part 24 is not a downstream area of the flow of the refrigerant
  • the low-temperature gas-liquid two-phase refrigerant flows at least below (lower side) the fan cleaning unit 24, the thickness of frost and ice adhering to the indoor heat exchanger 15 can be increased. Therefore, the indoor heat exchanger 15 can be washed away with a large amount of water during the subsequent thawing.
  • the control unit 30 may close the up-and-down air direction plate 23 (see FIG. 2).
  • the angle of the up-and-down wind direction plate 23 is upward from the horizontal.
  • the control unit 30 defrosts the indoor heat exchanger 15 (step S103 in FIG. 9). For example, the control unit 30 naturally defrosts the indoor heat exchanger 15 at room temperature by maintaining the stopped state of each device. In addition, you may make it melt the frost and ice adhering to the indoor heat exchanger 15 by the control part 30 performing ventilation operation. A state in which the indoor heat exchanger 15 is being thawed will be described with reference to FIG. 10B.
  • FIG. 10B is an explanatory diagram illustrating a state in which the indoor heat exchanger 15 is being thawed in the air conditioner 100 according to the embodiment.
  • frost and ice adhering to the indoor heat exchanger 15 are melted, and a large amount of water w flows to the dew tray 18 through the fins f.
  • the dust j adhering to the indoor heat exchanger 15 during the air conditioning operation can be washed away.
  • the dust j adhering to the front indoor heat exchanger 15a is also washed away and flows down to the dew tray 18 (see the arrow in FIG. 10B).
  • the water w that has flown down to the dew tray 18 in this way, together with dust j (see FIG. 10A) that has fallen directly onto the dew tray 18 during cleaning of the indoor fan 16, is externally supplied via a drain hose (not shown). To be discharged.
  • a drain hose not shown
  • step S ⁇ b> 103 after the indoor heat exchanger 15 is frozen and thawed (step S ⁇ b> 103), the control unit 30 performs a blowing operation so that the interior of the indoor unit Ui can be dried. Good. Thereby, it is possible to suppress the propagation of bacteria and fungi in the indoor heat exchanger 15 and the like.
  • FIG. 11 is a flowchart illustrating a fan cleaning process S200 executed by the control unit 30 of the air conditioner 100 according to the embodiment.
  • FIG. 12 is an explanatory diagram illustrating a period during which the fan cleaning unit 24 during the fan cleaning according to the present embodiment is separated from or separated from the indoor fan 16.
  • step S201 the control unit 30 sets an initial value.
  • initial setting items cleaning elapsed time T, cleaning time CT, brush angle adjustment value n, cleaning time adjustment value m, operation integrated time DT, operation integrated time threshold DTc, rotation speed R, set rotation speed Rc, initial brush angle ⁇ 0 , there is a brush angle ⁇ .
  • step S202 it is determined whether or not the operation integration time DT of the air conditioner 100 has reached the operation integration time threshold value DTc.
  • the integration time DT is set to “0” (zero) (step S203), and the process proceeds to step S204.
  • step S202 No
  • the process proceeds to step S204.
  • step S203 the angle of the brush 24b is changed because the brush 24b is expected to be deteriorated, so that the contact between the brush 24b and the fan blade 16a is improved.
  • step S204 the control unit 30 controls the indoor fan motor 16m to start the rotation of the indoor fan 16, and accelerates the indoor fan 16.
  • step S210 the control unit 30 controls the fan cleaning motor 24m to bring the fan cleaning unit 24 into contact with the indoor fan 16.
  • the control unit 30 controls the fan cleaning motor 24m so that the fan cleaning unit 24 and the indoor fan 16 are arranged in contact with each other after the indoor fan 16 is accelerated.
  • step S210 when the fan cleaning unit 24 is brought into contact with the indoor fan 16, the PM (permanent magnet) type and HB type stepping motors are detented when the fan cleaning motor 24m is not energized. Since it has torque, its position can be maintained. However, in order to reliably hold the position during fan cleaning, the control unit 30 drives the brush 24b to a predetermined angle and then holds the fan cleaning motor 24m (driving device) at a predetermined angle during cleaning of the blower fan. It is preferable to pass a holding current for this purpose.
  • the HB type motor has a structure in which a cylindrical magnet magnetized in the axial direction is sandwiched between two iron rotors (rotors).
  • control unit 30 controls the indoor fan motor 16m so that the indoor fan 16 rotates in a state where the fan cleaning unit 24 is in contact with the indoor fan 16.
  • the durability of the fan cleaning unit 24 can be enhanced, and dust attached to the blades of the indoor fan 16 can be removed.
  • control unit 30 may decelerate the rotation speed of the brush 24b immediately before the brush 24b is applied to the indoor fan 16 (immediately before contact). Since the indoor fan 16 is rotating at the set rotational speed Rc, it is possible to weaken the impact when the brush 24b is brought into contact and reduce the wear of the brush 24b.
  • control unit 30 controls the left / right airflow direction plate motor 25 so that the left / right airflow direction plate 22 is closed while the fan cleaning unit 24 and the indoor fan 16 are in contact with each other.
  • control unit 30 controls the vertical wind direction plate motor 26 so that the vertical wind direction plate 23 is closed while the fan cleaning unit 24 and the indoor fan 16 are in contact with each other.
  • step S ⁇ b> 211 the control unit 30 determines whether there is a brush angle change request from the remote controller 40.
  • the control unit 30 proceeds to step S220.
  • step S215, No the control unit 30 returns to step S211.
  • step S220 the control unit 30 controls the fan cleaning motor 24m to separate the fan cleaning unit 24 from the indoor fan 16.
  • the control unit 30 controls the fan cleaning motor 24m so that the fan cleaning unit 24 and the indoor fan 16 are arranged at positions separated from each other before the indoor fan 16 is decelerated.
  • step S221 the control unit 30 controls the indoor fan motor 16m, decelerates the indoor fan 16, and ends the rotation of the indoor fan 16.
  • step S222 the control unit 30 stores the brush angle adjustment value n and the cleaning time adjustment value m, which are set values, in the storage unit 31a.
  • the control unit 30, during the period from time t 0 shown in FIG. 12 to time t 1 (during acceleration of the indoor fan 16), thereby separating the fan cleaning unit 24 and the indoor fan 16.
  • the period from the time t 1 to time t 2 is a cleaning time CT.
  • the fan cleaning unit 24 and the indoor fan 16 can be separated from each other during acceleration when the indoor fan 16 starts rotating or during deceleration when the indoor fan 16 finishes rotating. It is possible to avoid a problem that a load is applied to the cleaning unit 24 and the fan cleaning unit 24 is likely to deteriorate. Further, it is possible to avoid the problem that the noise increases with the increase or decrease of the rotation speed of the indoor fan 16 and the user is uncomfortable.
  • the brush angle of the fan cleaning unit 24 can be changed according to the deterioration of the brush 24b, so that fan cleaning is appropriately performed. it can.
  • the brush angle can be adjusted by the remote controller 40, and can be changed to an optimum brush angle by a user or a service person of the air conditioner.
  • the fan cleaning time can be adjusted by the remote controller 40, and can be changed to an optimum fan cleaning time by a user or a service person of the air conditioner.
  • the air conditioner 100 compared with a conventional air conditioner, the time for the fan cleaning unit 24 and the indoor fan 16 to contact each other can be shortened, so that deterioration of the fan cleaning unit is suppressed, An air conditioner with improved quietness can be realized.
  • the fan cleaning unit 24 and the indoor fan 16 rotate in the same direction while the fan cleaning unit 24 and the indoor fan 16 come into contact with each other. Durability can be increased.
  • the angle of the fan cleaning unit 24 is adjusted corresponding to the front end surface of the indoor fan 16 while the fan cleaning unit 24 and the indoor fan 16 are in contact with each other. Silence can be improved.
  • the air conditioner 100 since the left and right wind direction plates 22 and the upper and lower wind direction plates 23 are closed while the fan cleaning unit 24 and the indoor fan 16 are in contact with each other, the quietness of the air conditioner 100 is improved. In addition, the dust can be prevented from diffusing and the user can be prevented from accidentally putting his / her hand inside the indoor unit Ui.
  • the indoor fan 16 is cleaned by the fan cleaning unit 24 (S101 in FIG. 9), it is possible to suppress the dust j from being blown into the room. Further, since the fan cleaning unit 24 is arranged between the front indoor heat exchanger 15a and the indoor fan 16, the dust j scraped off from the indoor fan 16 by the brush 24b can be guided to the dew tray 18. Further, during cleaning of the indoor fan 16, the control unit 30 rotates the indoor fan 16 in the reverse direction. Thereby, it is possible to prevent the dust j described above from going to the air outlet h4.
  • the brush 24b is in a state of facing sideways (see FIG. 4), so that the air flow is hardly hindered by the influence of the brush 24b. Further, coupled with the fan cleaning unit 24 being arranged in the upstream region of the air flow, a decrease in the air volume caused by the fan cleaning unit 24 is suppressed during normal air conditioning operation, and the power consumption of the indoor fan 16 is reduced. Increase is also suppressed
  • control unit 30 sequentially freezes and thaws the indoor heat exchanger 15 (S103 in FIG. 9), so that the dust j adhering to the indoor heat exchanger 15 is washed away with the water w, and the dew tray 18 Flow down.
  • the indoor heat exchanger 15 can also be made into a clean state. Therefore, comfortable air conditioning can be performed by the air conditioner 100. Further, it is possible to reduce the user's labor required for cleaning the indoor heat exchanger 15 and the indoor fan 16 and the expense during maintenance.
  • the brush angle and the cleaning time changing means have been described with reference to FIGS. 5, 8A, 8B, and 11.
  • the present invention is not limited to this.
  • the control unit 30 may include a rotation speed changing unit that changes the rotation speed of the indoor fan 16 from the initial setting when the fan cleaning unit 24 cleans the indoor fan 16.
  • the brush 24b is deteriorated, the fan can be effectively cleaned by increasing the rotational speed of the indoor fan 16.
  • the noise at the time of fan cleaning is large, the noise can be reduced by reducing the rotation speed of the indoor fan 16.
  • the control unit 30 can change the rotation speed of the indoor fan 16 based on the number of operations or / and the operation integration time.
  • FIG. 13 is a schematic perspective view showing an indoor fan 16 and a fan cleaning unit 24A provided in an air conditioner according to another modification.
  • the fan cleaning unit 24A is installed on a rod-shaped shaft part 24d parallel to the axial direction of the indoor fan 16, a brush 24e installed on the shaft part 24d, and both ends of the shaft part 24d.
  • the fan cleaning unit 24A includes a moving mechanism that moves the fan cleaning unit 24A in the axial direction or the like.
  • the length of the fan cleaning section 24A in the direction parallel to the axial direction of the indoor fan 16 is shorter than the axial length of the indoor fan 16 itself.
  • the fan cleaning unit 24A moves in the axial direction of the indoor fan 16 (left and right as viewed from the front of the indoor unit). That is, in the axial direction of the indoor fan 16, the indoor fan 16 is sequentially cleaned for each predetermined area corresponding to the length of the fan cleaning unit 24A.
  • the manufacturing cost of an air conditioner can be reduced by making it the structure which moves 24 A of fan cleaning parts whose length is comparatively short compared with the structure shown in FIG.
  • a rod (not shown) extending in parallel with the shaft portion 24d is provided in the vicinity of the fan cleaning portion 24A (for example, above the shaft portion 24d), and a predetermined moving mechanism (not shown) is provided along the rod.
  • the fan cleaning unit 24A may be moved. Further, after the cleaning by the fan cleaning unit 24A, a moving mechanism (not shown) may appropriately rotate or translate the fan cleaning unit 24A so that the fan cleaning unit 24A is retracted from the indoor fan 16.
  • control unit 30 may bring the fan cleaning unit 24 into contact with the indoor fan 16 and rotate the indoor fan 16 in the same direction as during normal air-conditioning operation (forward rotation).
  • the initial state at the time of fan cleaning may be set, and the brush angle may be adjusted in the direction of FIG. 6A as the brush 24b deteriorates.
  • the brush 24b is brought into contact with the indoor fan 16 and the indoor fan 16 is rotated in the forward direction, so that dust adhering to the vicinity of the tip of the fan blade 16a is effectively removed. Moreover, since the circuit element for reversely rotating the indoor fan 16 becomes unnecessary, the manufacturing cost of the air conditioner 100 can be reduced. Note that the rotational speed when the indoor fan 16 is normally rotated during cleaning may be any of a low speed region, a medium speed region, and a high speed region, as in the embodiment.
  • the configuration in which the brush 24b rotates around the shaft portion 24a of the fan cleaning unit 24 has been described, but the configuration is not limited thereto.
  • the control unit 30 may move the shaft portion 24 a toward the indoor fan 16 and bring the brush 24 b into contact with the indoor fan 16. Then, after the cleaning of the indoor fan 16 is completed, the control unit 30 may retract the shaft portion 24 a and separate the brush 24 b from the indoor fan 16.
  • the configuration in which the fan cleaning unit 24 includes the brush 24b has been described.
  • the configuration is not limited thereto. That is, a sponge or the like may be used as long as the indoor fan 16 can be cleaned.
  • the present invention is not limited thereto.
  • the region whose height is higher than that of the fan cleaning unit 24 is not the downstream region of the flow of the refrigerant flowing through the indoor heat exchanger 15 (that is, the upstream region or the middle region). ) May be used.
  • a region located downstream of the air flow during normal air-conditioning operation and having a height higher than that of the fan cleaning unit 24 is the indoor heat exchanger.
  • the configuration in which the control unit 30 contacts the brush 24b of the fan cleaning unit 24 with the indoor fan 16 during cleaning of the indoor fan 16 is not limited thereto. That is, during cleaning of the indoor fan 16, the control unit 30 may bring the brush 24 b of the fan cleaning unit 24 close to the indoor fan 16. More specifically, the control unit 30 brings the brush 24b close to the indoor fan 16 to such an extent that dust accumulated at the tip of the fan blade 16a and growing to the outside in the radial direction from the tip can be removed. Even with such a configuration, dust accumulated in the indoor fan 16 can be appropriately removed.
  • the indoor heat exchanger 15 may be condensed, and the indoor heat exchanger 15 may be washed with the condensed water (condensed water).
  • the control unit 30 calculates the dew point of the room air based on the temperature of the room air and the relative humidity. And the control part 30 controls the opening degree etc. of the expansion valve 14 so that the temperature of the indoor heat exchanger 15 is below the above-mentioned dew point, and becomes higher than predetermined freezing temperature.
  • the above “freezing temperature” is a temperature at which moisture contained in the indoor air starts to freeze in the indoor heat exchanger 15 when the temperature of the indoor air is lowered. By condensing the indoor heat exchanger 15 in this way, the dust in the indoor heat exchanger 15 can be washed away with the condensed water (condensed water).
  • control unit 30 may condense the indoor heat exchanger 15 by performing a cooling operation or a dehumidifying operation and wash the indoor heat exchanger 15 with the condensed water (condensed water).
  • the present invention is not limited thereto. That is, a configuration in which at least one of the indoor heat exchanger 15 and the dew receiving tray 18 exists below the fan cleaning unit 24 may be employed.
  • the dew pan 18 may exist below (directly below) the fan cleaning unit 24.
  • the present invention is not limited to this. That is, a plurality of indoor units connected in parallel may be provided, or a plurality of outdoor units connected in parallel may be provided.
  • the wall-mounted air conditioner 100 has been described, but the present invention can also be applied to other types of air conditioners.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

La présente invention porte sur un climatiseur (100) équipé : d'un échangeur thermique intérieur (15) ; d'un ventilateur intérieur (16) ; d'une unité de nettoyage de ventilateur (24) qui nettoie le ventilateur intérieur (16) à l'aide d'une brosse (24b) ; et d'une unité de commande (30) servant à mettre en contact l'unité de nettoyage de ventilateur (24) avec le ventilateur intérieur (16), et qui possède un moyen de modification d'angle de brosse (31b1) permettant de modifier l'angle de la brosse qui entre en contact avec le ventilateur intérieur (16).
PCT/JP2018/018514 2018-05-14 2018-05-14 Climatiseur WO2019220489A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/JP2018/018514 WO2019220489A1 (fr) 2018-05-14 2018-05-14 Climatiseur
CN201880001789.9A CN110520675B (zh) 2018-05-14 2018-05-14 空调机
JP2018536903A JP6701353B2 (ja) 2018-05-14 2018-05-14 空気調和機
ES201890070A ES2731249A1 (es) 2018-05-14 2018-05-14 Acondicionador de aire
FR1860549A FR3081036B1 (fr) 2018-05-14 2018-11-15 Climatiseur
TW107140525A TWI686542B (zh) 2018-05-14 2018-11-15 空調機

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PCT/JP2018/018514 WO2019220489A1 (fr) 2018-05-14 2018-05-14 Climatiseur

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CN112682844B (zh) * 2020-12-24 2022-10-04 Tcl空调器(中山)有限公司 一种风轮清扫机构及空调器

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JPH1142467A (ja) * 1997-05-16 1999-02-16 Hanrin Mechatronics Ltd ダクト清掃用ロボット清掃機
WO2008062876A1 (fr) * 2006-11-24 2008-05-29 Toshiba Carrier Corporation Unité d'intérieur pour appareil de climatisation
WO2016152449A1 (fr) * 2015-03-20 2016-09-29 コニカミノルタ株式会社 Brosse de nettoyage de miroir réfléchissant la lumière solaire et système de nettoyage, procédé de nettoyage et appareil de nettoyage pour miroir réfléchissant la lumière solaire

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JP2002267249A (ja) * 2001-03-09 2002-09-18 Sharp Corp 流体送り装置
JP4951972B2 (ja) * 2006-01-10 2012-06-13 パナソニック株式会社 空気調和機用ファンユニット
JP2008002767A (ja) * 2006-06-23 2008-01-10 Toshiba Kyaria Kk 空気調和機の室内機
JP2008039324A (ja) * 2006-08-08 2008-02-21 Toshiba Kyaria Kk 空気調和機の室内機
JP4287873B2 (ja) * 2006-08-31 2009-07-01 日立アプライアンス株式会社 空気調和機
JP4046755B2 (ja) * 2006-10-27 2008-02-13 シャープ株式会社 空気調和機
CN101498481A (zh) * 2009-02-14 2009-08-05 海信（山东）空调有限公司 一种带有室内机风扇自动清洁功能的空调器
JP5493495B2 (ja) * 2009-06-23 2014-05-14 ダイキン工業株式会社 空気調和機の室内機

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Publication number Priority date Publication date Assignee Title
JPH1142467A (ja) * 1997-05-16 1999-02-16 Hanrin Mechatronics Ltd ダクト清掃用ロボット清掃機
WO2008062876A1 (fr) * 2006-11-24 2008-05-29 Toshiba Carrier Corporation Unité d'intérieur pour appareil de climatisation
WO2016152449A1 (fr) * 2015-03-20 2016-09-29 コニカミノルタ株式会社 Brosse de nettoyage de miroir réfléchissant la lumière solaire et système de nettoyage, procédé de nettoyage et appareil de nettoyage pour miroir réfléchissant la lumière solaire

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CN110520675B (zh) 2020-09-01
TW201947124A (zh) 2019-12-16
TWI686542B (zh) 2020-03-01
FR3081036A1 (fr) 2019-11-15
JP6701353B2 (ja) 2020-05-27
CN110520675A (zh) 2019-11-29
FR3081036B1 (fr) 2021-07-09
ES2731249A1 (es) 2019-11-14

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