WO2019021595A1 - 空気調和機 - Google Patents

空気調和機 Download PDF

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Publication number
WO2019021595A1
WO2019021595A1 PCT/JP2018/019217 JP2018019217W WO2019021595A1 WO 2019021595 A1 WO2019021595 A1 WO 2019021595A1 JP 2018019217 W JP2018019217 W JP 2018019217W WO 2019021595 A1 WO2019021595 A1 WO 2019021595A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
operation mode
air cleaning
filter
cleaning operation
Prior art date
Application number
PCT/JP2018/019217
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
藤田　直人
啓司 山際
健介 足達
寛幸 大門
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 CN201880010199.2A priority Critical patent/CN110268204A/zh
Publication of WO2019021595A1 publication Critical patent/WO2019021595A1/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
    • F24F1/0071—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
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F24F11/526—Indication arrangements, e.g. displays giving audible indications
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • 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
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • 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
    • F24F13/28—Arrangement or mounting of filters

Definitions

  • the present invention relates to an air conditioner provided with an air purification filter.
  • the air conditioner disclosed in Patent Document 1 includes a case that divides an opening surface in a cross section of an air flow passage, an air filter that has a coarse dust filter in a first section, and an air purifying filter in a second section. Equipped with Furthermore, a driving member is provided for driving the air filter between a first position where the air cleaning filter is disposed at the opening surface and a second position at which the air cleaning filter is at least partially offset from the opening surface.
  • an air purifying filter when an air purifying filter is located in an opening surface, an air flow passes an air purifying filter, and an air purifying function is implement
  • Patent Document 1 does not disclose at all the control technology and the like when performing the air cleaning function.
  • the present invention provides an air conditioner having a highly usable air cleaning function by performing appropriate control.
  • the air conditioner according to the present invention includes the suction port, a fan that sucks in air from the suction port, a blowout port from which an air flow generated by the rotation of the fan blows out, an air purification filter, a dust detection sensor, and an operation switch. And / or a controller, and In addition, at least a part of the air flow has an air cleaning operation mode in which the air cleaning filter passes through, and the dust detection sensor detects dust contained in the air at a predetermined value or more, or the user operates the operation switch Thus, when it is instructed to start the air cleaning operation mode, the air cleaning operation mode is executed.
  • the air cleaning operation mode is executed when the user instructs start of execution of the air cleaning operation mode by the operation switch, or the air cleaning operation mode is executed, thus providing a highly usable air cleaning function.
  • FIG. 1 is a longitudinal sectional view of the indoor unit in the air conditioning operation mode of the air conditioner according to the embodiment of the present invention.
  • FIG. 2 is a longitudinal sectional view of the indoor unit at the time of the air cleaning operation mode of the air conditioner according to the embodiment of the present invention.
  • FIG. 3 is a longitudinal cross-sectional view of the indoor unit in the air cleaning operation mode of the air conditioner according to the embodiment of the present invention.
  • Embodiment 1 to 3 are longitudinal sectional views of the indoor unit of the air conditioner according to the embodiment.
  • the air conditioner according to the present embodiment is composed of an indoor unit and an outdoor unit.
  • the indoor unit and the outdoor unit are connected by refrigerant piping and control wiring, and a heat pump is configured by the indoor unit and the outdoor unit.
  • the outdoor unit is provided with a compressor.
  • the indoor unit is attached to the wall of the room. Further, the indoor unit and the control device (not shown) disposed in the outdoor unit communicate with each other through the control wiring.
  • a suction port 11 is formed on the upper surface of the main body 1 and a blowout port 12 is formed on the lower surface of the main body 1.
  • a front panel 2 is provided on the front of the main body 1. An air flow generated by the rotation of the fan 20 provided inside the main body 1 is sucked from the suction port 11.
  • an air flow generated by the rotation of the fan 20 is blown out from the blowout port 12.
  • the rear surface 13 of the main body 1 is attached to a wall surface (not shown). Inside the main body 1, a heat exchanger 30 is provided which exchanges heat with air sucked from the suction port 11 by the rotation of the fan 20.
  • a cross flow fan (cross flow fan) is suitable.
  • the fan 20 has a fan motor (not shown) connected to one of the left and right end rotation shafts.
  • a downstream air passage 40 extending from the downstream side of the fan 20 to the upstream side of the outlet 12 is disposed downstream of the fan 20 to guide the flow of the air, and a stabilizer 42 disposed opposite to the rear guider 41.
  • the air outlet 12 is provided with an up and down wind direction changing blade 51 and a left and right air direction changing blade 52.
  • the left and right wind direction changing blade 52 is disposed upstream of the vertical wind direction changing blade 51.
  • the up and down wind direction changing blades 51 open and close the air outlet 12 and change the air blowing direction up and down.
  • the left and right wind direction changing blade 52 changes the blowing direction of the air left and right.
  • a heat exchanger 30, an air filter 70, and an air purification filter 80 are disposed in the air flow path 60 on the upstream side of the fan 20.
  • the air cleaning filter 80 is formed separately from the air filter 70.
  • the air filter 70 is a filter for dust intended to capture relatively large dust.
  • the air cleaning filter 80 has a larger ventilation resistance than the air filter 70, and is a filter for capturing fine particles passing through the air filter 70, and is preferably a pleated type or a non-woven type.
  • a member having an air purification function different from the air purification filter 80, such as a deodorizing filter, may be further provided to the air purification filter 80.
  • the moving device 90 in contact with the air purifying filter 80 moves the arrangement position of the air purifying filter 80 without deforming the shape of the air purifying filter 80.
  • the moving device 90 is configured of, for example, a motor 91 and a gear 92.
  • the gear 92 of the moving device 90 is engaged with the rack 81 formed in the outer frame of the air purification filter 80, and the gear 92 is rotated by the motor 91 so that the state of FIG.
  • the air cleaning filter 80 is rotationally moved.
  • the air purifying filter 80 rotationally moves along the position of the air purifying filter 80 and the guide 93 which controls inclination.
  • At least a portion of the air purification filter 80 is arc-shaped or curved.
  • the air cleaning filter 80 can be disposed in a limited space with good air cleaning efficiency, and the moving device 90 is simply configured. be able to.
  • the air purification filter 80 is disposed in the air flow passage 60 upstream of the air filter 70.
  • the air purification filter 80 is compared to the case where the air purification filter 80 is arranged in the air flow passage 60 between the air filter 70 and the heat exchanger 30.
  • it is possible to prevent the performance of the air purifying filter 80 from being degraded due to condensation during cooling operation.
  • the moving device 90 is preferably disposed in the air flow passage 60 upstream of the air filter 70.
  • the moving device 90 By arranging the moving device 90 in the air flow passage 60 on the upstream side of the air filter 70, compared to the case where the moving device 90 is arranged in the air flow passage 60 between the air filter 70 and the heat exchanger 30, The influence of condensation on the moving device 90 during the cooling operation can be reduced, and an increase in ventilation resistance by the moving device 90 can be prevented.
  • the air cleaning filter 80 may be disposed in the air flow passage 60 on the upstream side of the air filter 70, and the moving device 90 may be disposed in the air flow passage 60 between the air filter 70 and the heat exchanger 30.
  • the air conditioner according to the present embodiment can perform at least an air conditioning operation of a cooling operation, a heating operation, and an air cleaning operation, and the operation switching of these operations is performed by the user using the operation device 100 to start each operation. And can be instructed to stop.
  • the controller device 100 includes an operation switch 101 instructing start and stop of the cooling operation, an operation switch 102 instructing start and stop of the heating operation, and an operation switch 103 instructing start and stop of the air cleaning operation.
  • a dust detection sensor 110 for detecting at least the presence or absence of dust contained in the air.
  • the user instructs the start of the air cleaning operation with the operation switch 103, and the dust detection sensor 110 detects the result of the air cleanliness detected by the dust detection sensor 110.
  • the moving device 90 moves the arrangement position of the air purification filter 80 based on the detection value of dust contained in the air.
  • the user operates the operation switch 103 instructing the start of the air cleaning operation, and the dust detection sensor 110 detects dust contained in the air at a predetermined value or more. Run the air cleaning operation to activate the air cleaning function.
  • the dust detection sensor 110 detects the dust contained in the air is less than the predetermined value, the air cleaning function is used. The air clean operation to be enabled is not performed.
  • the air-conditioning operation in which the air sucked from the suction port 11 passes through the air filter 70 and exchanges heat with the heat exchanger 30; And the air drawn in from the suction port 11 at least has an air cleaning operation in which the air passes through the air filter 70, the air cleaning filter 80 and the heat exchanger 30.
  • the user instructs the start of the air cleaning operation with the operation switch 103, and the detection value of dust contained in the air by the dust detection sensor 110 is equal to or greater than a predetermined value.
  • the air conditioning operation and the air cleaning operation are simultaneously operated.
  • the air cleaning operation can be simultaneously performed when the heating capacity in the heating operation is set smaller than a predetermined value or when the cooling capacity in the cooling operation is set smaller than the predetermined value. .
  • the heating capacity or the cooling capacity is set to a predetermined value or more, that is, in the case where it is desired to warm the room immediately or in the case where the room needs cooling immediately, the required air conditioning capacity is larger than the predetermined value. , Prioritize it. By preventing the decrease in the air conditioning capacity due to the increase in the air flow resistance by the air purifying filter 80, it is possible to maintain the comfort.
  • the air conditioning capacity is set to be larger than the predetermined value, if the set rotational speed of the fan 20 at the time of air cleaning operation is larger than the set rotational speed of the fan 20 in the air conditioning operation mode, the air conditioning capacity decreases. It is also possible to simultaneously operate the air conditioning operation and the air cleaning operation while suppressing the
  • the case where the air conditioning capacity is set larger than a predetermined value means the case where the heating capacity in the heating operation is set equal to or more than the predetermined value or the case where the cooling capacity in the cooling operation is set equal to or more than the predetermined value.
  • Such operation control may be used. That is, after the air conditioning operation of the cooling operation or the heating operation is stopped, the execution of the air cleaning operation may be automatically started, and the execution of the air cleaning operation may be stopped after a predetermined time.
  • the cooling operation started when the user operates the operation switch 101 and the heating operation started when the user operates the operation switch 102 are the air conditioning operation mode.
  • the air cleaning operation started when the user operates the operation switch 103 is the air cleaning operation mode.
  • the set rotational speed of the fan 20 in the air cleaning operation mode is greater than at least the minimum set rotational speed of the fan 20 in the air conditioning operation mode.
  • the fan 20 in the air conditioning operation mode can change the rotation speed to "weak”, “medium” or “strong”
  • the set rotation speed of the fan 20 in the air cleaning operation mode is relative to the rotation speed in the air conditioning operation mode
  • the rotation speed is increased by a predetermined value.
  • the value of the number of rotations to be increased is larger in the setting value larger than the setting value in which the setting rotational speed of the fan 20 in the air conditioning operation mode is small. ing. That is, the fan 20 in the air conditioning operation mode has a larger value for "strong” than "weak", and is set as the set rotational speed of the fan 20 in the air cleaning operation mode.
  • the ventilation resistance to the suction port 11 is increased. It is possible to suppress the reduction of the suction air volume, and to secure the air volume capable of sufficiently exhibiting the air cleaning function.
  • FIGS. 1 to 3 show only the operation of the air cleaning filter 80. There is.
  • FIG. 1 is a longitudinal sectional view of the indoor unit at the time of the air conditioning operation stop of the air conditioner and at the time of the air conditioning operation mode.
  • the air purifying filter 80 When the air conditioning operation is stopped and in the air conditioning operation mode, the air purifying filter 80 is accommodated outside the air flow passage 60 in the main body 1. In this stored state, the air purifying filter 80 is disposed inward of the front panel 2, and the gear 92 of the moving device 90 is located on the upper end side of the air purifying filter 80. Therefore, the air purification filter 80 does not cover the suction port 11 on the upstream side of the air filter 70, that is, the air flow passage 60. In this state, the air cleaning function by the air cleaning filter 80 does not work.
  • FIG 2 and 3 are longitudinal sectional views of the indoor unit in the air cleaning operation mode of the air conditioner.
  • a part of the air purification filter 80 is located at the suction port 11 on the upstream side of the air filter 70, and shows a state in which a part of the air flow path 60 is covered.
  • all of the air cleaning filter 80 is located at the suction port 11 on the upstream side of the air filter 70 and shows a state in which a part of the air flow path 60 is covered.
  • the gear 92 of the moving device 90 is located at the central portion of the air purification filter 80, and in the state of FIG. 3, the gear 92 of the moving device 90 is located on the lower end side of the air cleaning filter 80.
  • the following operation is performed.
  • the following operation is also performed when the user instructs the start of the execution of the air cleaning operation mode by the operation switch 103 without mounting the dust detection sensor 110 and starts the execution of the air cleaning operation mode. That is, when the air cleaning operation mode is started, the air cleaning filter 80 is rotated from the state shown in FIG. 1 to the state shown in FIG. The placement position moves in the same shape as it is. Furthermore, by rotating the motor 91 forward, the air cleaning filter 80 is rotated from the state of FIG. 2 to the state of FIG. 3 without bending and stretching, and the shape remains unchanged without being deformed. The arrangement position moves to a position facing the suction port 11.
  • the air purification filter 80 is disposed and moved in the direction in which the flow passage area covering the air flow passage 60 is increased, and at least a part of the air flow generated by the rotation of the fan 20 is the air purification filter Pass 80
  • the following operation is performed when automatically stopping after the air conditioning operation, that is, when stopping the air cleaning operation mode. That is, by reversely rotating the motor 91 of the moving device 90, the air purifying filter 80 is rotated without being bent and stretched from the state of FIG. 3 to the state of FIG. The placement position moves with the same shape. Furthermore, by rotating the motor 91 in the reverse direction, the air cleaning filter 80 is rotated from the state of FIG. 2 to the state of FIG. 1 without bending and stretching, and arranged as it is without being deformed. The position moves.
  • the air purification filter 80 is disposed and moved in the direction in which the flow passage area covering the suction port 11, that is, the air flow passage 60 becomes smaller.
  • the execution of the air cleaning operation mode is determined based on the detection value by the dust detection sensor 110, and the moving device 90 determines the arrangement position of the air cleaning filter 80 in FIG. It is made to move between the state and the state of FIG.
  • the air volume setting can be increased by driving the fan 20 at a large set rotation speed, and the air purification function To improve.
  • the arrangement position of the air purification filter 80 may be changed based on the detection value of dust by the dust detection sensor 110. For example, when the detection value of dust by the dust detection sensor 110 is large, the air cleaning filter 80 is disposed at the position shown in FIG. 3, and when the detection value is smaller than that shown in FIG. It is good also as specification of changing so that it may arrange at a position shown in 2.
  • the air cleaning filter 80 shown in FIG. 2 may be disposed.
  • the arrangement position of the air purification filter 80 in the air purification operation mode has been described in two steps of the state of FIG. 2 and the state of FIG. it can.
  • the air conditioner by this Embodiment is equipped with the display part 111 in the front of the main body 1 of an indoor unit. Based on the result of the degree of air cleanliness detected by the dust detection sensor 110, that is, based on the detection value of dust contained in the air detected by the dust detection sensor 110, "clean” or “slightly dirty” the air cleanliness degree It is judged and classified as “dirty” or the like, and the display color is changed so that each can be identified, and displayed on the display unit 111. This informs the user of the necessity of air cleaning. In addition, when the cleanliness degree of the air is "dirty", the user may be notified of the necessity of air purification by a warning sound including voice.
  • a wireless adapter (not shown) is attached to the main unit 1, and from the wireless adapter, a network terminal such as a smart phone or the like via a network transceiver (not shown) capable of transmission and reception and a wireless router (not shown).
  • the result detected by the dust detection sensor 110 is transmitted and displayed on the device.
  • the user may be able to confirm the necessity of air purification with a network terminal such as a smartphone.
  • the warning color is displayed on the display unit 111 when the detection value of the dust detection sensor 110 does not fall below the predetermined value within the predetermined time while the air cleaning operation mode is being executed.
  • the user is notified of the necessity of replacing the air purifying filter 80.
  • the necessity of the replacement of the air cleaning filter 80 may be notified to the user by a warning sound including voice.
  • a wireless adapter (not shown) is attached to the main unit 1, and from the wireless adapter, a network terminal such as a smart phone or the like via a network transceiver (not shown) capable of transmission and reception and a wireless router (not shown).
  • the necessity of the replacement of the air purification filter 80 may be displayed on the device, transmitted and displayed, and notified to the user.
  • the air conditioner according to the first disclosure includes a suction port, a fan that sucks in air from the suction port, a blowout port from which an air flow generated by the rotation of the fan blows, an air purification filter, dust At least one of a detection sensor and an operation switch, and a control device. Also, at least a portion of the air flow has an air cleaning operating mode in which the air cleaning filter is passed. Furthermore, the air cleaning operation mode is executed when the dust detection sensor detects dust contained in the air at a predetermined value or more, or when the user instructs start of execution of the air cleaning operation mode by the operation switch. Ru.
  • the highly usable air cleaning function can provide an air conditioner equipped with
  • the cleanliness degree of air determined based on the detection value of the dust detection sensor is displayed on the display unit or notified by sound including sound.
  • it may be configured to transmit from the wireless adapter to the network terminal for display.
  • the user can confirm and recognize the cleanliness of the air, so it is possible to provide an air conditioner having a highly usable air purification function.
  • the detection value of the dust detection sensor is less than a predetermined value within a predetermined time during execution of the air cleaning operation mode. If this is not the case, notify the user of the need to replace the air purification filter in the following manner. That is, the display by the display unit, the notification by the sound including the sound, or the display by transmitting from the wireless adapter to the network terminal may be used.
  • the user instructs the start of execution of the air cleaning operation mode by the operation switch, and the dust detection sensor If the detected value is greater than or equal to the predetermined value, the air cleaning operation mode is executed. And, even if the user instructs start of execution of the air cleaning operation mode by the operation switch, the air cleaning operation mode may not be executed if the detection value of the dust detection sensor is less than the predetermined value.
  • the air conditioner according to the fifth disclosure in particular, in any one of the first to fourth disclosures, comprises a heat exchanger, and has an air conditioning operating mode in which the air flow exchanges heat with the heat exchanger.
  • the execution of the air cleaning operation mode may be stopped when an instruction to stop the execution of is issued.
  • the air conditioner in the sixth disclosure in particular, in any one of the first to fifth disclosures, includes a heat exchanger, and has an air conditioning operation mode in which the air flow exchanges heat with the heat exchanger.
  • the air cleaning operation mode may be simultaneously executed.
  • the air conditioner according to the seventh disclosure particularly, according to any one of the first through the sixth disclosures, includes a moving device that changes the arrangement position of the air purifying filter, and when performing the air cleaning operation mode, the moving device The air cleaning filter may be moved to a position facing the suction port.
  • the air conditioner of the present invention can provide an air conditioner having a highly usable air cleaning function by executing appropriate control, it can be used not only for household use but also for business use air conditioners. Is also applicable.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
PCT/JP2018/019217 2017-07-24 2018-05-18 空気調和機 WO2019021595A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880010199.2A CN110268204A (zh) 2017-07-24 2018-05-18 空气调节机

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JP2017-142862 2017-07-24
JP2017142862A JP6967693B2 (ja) 2017-07-24 2017-07-24 空気調和機

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Publication number Priority date Publication date Assignee Title
JP7452765B2 (ja) 2021-06-23 2024-03-19 三菱電機株式会社 空気調和機または空気清浄機または除湿空清機

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