WO2011099608A1 - In-room unit of air conditioning device - Google Patents

In-room unit of air conditioning device Download PDF

Info

Publication number
WO2011099608A1
WO2011099608A1 PCT/JP2011/053067 JP2011053067W WO2011099608A1 WO 2011099608 A1 WO2011099608 A1 WO 2011099608A1 JP 2011053067 W JP2011053067 W JP 2011053067W WO 2011099608 A1 WO2011099608 A1 WO 2011099608A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
horizontal blades
indoor unit
indoor
conditioned room
Prior art date
Application number
PCT/JP2011/053067
Other languages
French (fr)
Japanese (ja)
Inventor
孔明 湯本
善治 道辻
剛志 横溝
義照 野内
Original Assignee
ダイキン工業株式会社
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 ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2011099608A1 publication Critical patent/WO2011099608A1/en

Links

Images

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
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • 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
    • 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
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F24F2120/12—Position of occupants

Definitions

  • the present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit in which a plurality of horizontal blades capable of independently changing the vertical wind direction angle are provided at the outlet.
  • Patent Document 1 Japanese Patent Laid-Open No. 2009-103417
  • the indoor unit of the air conditioner according to Patent Document 1 is provided with one suction port and four outlets positioned so as to surround the suction port, and each outlet has a rotatable horizontal blade. Is provided.
  • This indoor unit has a so-called dual mode in which each horizontal blade swings.
  • an object of the present invention is to ensure the comfort of a person in an air-conditioned room while maintaining the agitation of air in the air-conditioned room.
  • An indoor unit of an air conditioner is an indoor unit of an air conditioner provided in an air conditioning room, and includes a casing, a plurality of horizontal blades, a human detection unit, and a control unit. .
  • a blowout port is formed in the casing.
  • the plurality of horizontal blades are provided so as to be rotatable with respect to the outlet, and can independently change the vertical wind direction angle.
  • the person detection unit detects the presence or absence of a person in the air-conditioned room.
  • the control unit performs a swing operation different from the remaining horizontal blades on at least one of the plurality of horizontal blades, and performs rotation control of the horizontal blades so that the swing of the horizontal blades is temporarily stopped at a predetermined timing. .
  • control unit determines a predetermined timing according to the detection result of the human detection unit.
  • this indoor unit while at least one horizontal blade is swinging differently from the other horizontal blades, the swing of the horizontal blade is temporarily stopped at a predetermined timing, and the horizontal blade is in a predetermined posture. It will be temporarily stopped. Therefore, the air blown out from the air outlet is mixed with a part of the air in the air-conditioned room by the swing operation of the horizontal blades, and is desired according to the posture taken by the horizontal blades during the period when the swing is temporarily stopped. Air will be blown out in the direction of.
  • the predetermined timing at which the horizontal blade is temporarily stopped is determined according to the detection result of the human detection unit. Therefore, it is possible to ensure the comfort of the person in the air-conditioned room while stirring the air in the air-conditioned room.
  • the indoor unit of the air conditioning apparatus is the indoor unit of the air conditioning apparatus according to the first aspect, wherein a plurality of outlets are formed in the casing. Each of the plurality of outlets is provided with a horizontal blade.
  • the conditioned air blown out from each outlet is mixed with a part of the air in the air-conditioned room by the swing operation of each of the plurality of horizontal blades, and each horizontal blade is in a period when the swing is temporarily stopped.
  • the air is blown out in a desired direction according to the posture taken by the camera.
  • the indoor unit of the air conditioner according to the third aspect of the present invention is the indoor unit of the air conditioner according to the first aspect or the second aspect, wherein the casing is installed on the ceiling of the air conditioning room, and the lower surface thereof is a flat surface. It has a substantially quadrangular shape when viewed.
  • the outlet is formed on the lower surface along the peripheral edge of the lower surface of the casing.
  • Four horizontal blades are provided along each side of the lower surface.
  • the human detection unit detects the presence of a person in the air-conditioned room
  • the control unit controls the rotation of the horizontal blades so that the wind direction angle of the horizontal blades temporarily stops at a predetermined timing in a posture in which no person is present.
  • the posture of the horizontal blades at a predetermined timing is a posture in which conditioned air is sent avoiding the direction in which people are present. Therefore, in this indoor unit, the conditioned air does not directly hit the user in the air conditioned room. Therefore, when the swing operation is temporarily stopped, the conditioned air is sent in the direction in which the user is present, so that discomfort felt by the user can be suppressed.
  • the person detection unit detects the presence of a person in the air-conditioned room
  • the control unit controls the rotation of the horizontal blades so that the wind direction angle of the horizontal blades is temporarily stopped in a posture in which the person is present at a predetermined timing.
  • this indoor unit has a posture such that conditioned air is actively sent in the direction in which the person is present, and the horizontal blade temporarily stops the swing operation. Therefore, even when the operation of stirring the conditioned air is performed, the conditioned air can be sent to the user quickly.
  • An indoor unit of an air conditioner according to a sixth aspect of the present invention is the indoor unit of an air conditioner according to any of the first to fifth aspects, wherein the control unit temporarily stops the swing motion of the horizontal blades.
  • the length of the pause period which is a period to be set, is set according to a predetermined condition.
  • the predetermined condition for example, whether there is a person in the air-conditioned room, whether the difference between the set temperature in the air-conditioned room and the room temperature is a predetermined difference or more, and whether the difference between the set temperature and the floor temperature is a predetermined difference or more. Can be mentioned.
  • the suspension period becomes longer or shorter. Thereby, even when the air in the air-conditioned room is being stirred, the air-conditioned air can be accurately sent in a predetermined direction according to the state of the air-conditioned room at that time.
  • the indoor unit of the air conditioner according to the seventh aspect of the present invention is the indoor unit of the air conditioner according to the sixth aspect, wherein the human detection unit further detects the number of people and / or the amount of activity of the person in the air-conditioned room. . Then, when the number of persons and / or the amount of activity detected by the human detection unit is larger than the predetermined amount, the control unit sets the suspension period longer. When there are many people in the air-conditioned room or when a person is exercising vigorously, such as exercise, the person in the air-conditioned room tends to feel the temperature in the air-conditioned room as “hot”.
  • An indoor unit of an air conditioner is the indoor unit of an air conditioner according to any one of the first to seventh aspects.
  • the rotation operation of each horizontal blade is controlled so that the swing of the horizontal stop is temporarily stopped at a predetermined timing.
  • the control unit inclines the horizontal blade that has been performing a swing operation that temporarily stops at a predetermined timing by a predetermined angle.
  • the swing operation of the horizontal blade ends and the horizontal blade is inclined at a predetermined angle.
  • the indoor unit of the air conditioner according to the first aspect of the present invention it is possible to ensure the comfort of the person in the air-conditioned room while stirring the air in the air-conditioned room.
  • the indoor unit of the air conditioner according to the second aspect of the present invention the conditioned air blown out from each outlet is mixed with a part of the air in the conditioned room by the swing operation of each of the plurality of horizontal blades, and the swing is performed. In the period of temporary stop, air is blown out in a desired direction according to the posture taken by each horizontal blade.
  • the air in the air-conditioned room can be effectively stirred even in the ceiling-mounted indoor unit.
  • the indoor unit of the air conditioner according to the fourth aspect of the present invention when the swing operation is temporarily stopped, the conditioned air is sent in the direction in which the user is present, thereby suppressing discomfort felt by the user. .
  • the conditioned air can be quickly sent to the user even when the operation of stirring the conditioned air is performed.
  • the indoor unit of the air conditioner according to the sixth aspect of the present invention even when the air in the air-conditioned room is being stirred, the air-conditioned air is accurately sent in a predetermined direction according to the state of the air-conditioned room at that time. be able to.
  • the indoor unit of the air conditioning apparatus according to the seventh aspect of the present invention it is possible to further eliminate discomfort with respect to the temperature of the person in the air-conditioned room.
  • air at a desired temperature can be supplied into the air-conditioned room in which air is sufficiently agitated. It is possible to make the air-conditioned room comfortable.
  • FIG. 5 is a schematic side cross-sectional view of the indoor unit according to the first embodiment of the present invention, which is a cross-sectional view taken along the line IOI in FIG. 4. It is a schematic plan view which shows the state which removed the top plate of the indoor unit concerning 1st Embodiment of this invention. It is the top view which looked at the decorative panel of the indoor unit concerning 1st Embodiment of this invention from the air conditioned room.
  • FIG. 1 is a schematic configuration diagram of an air conditioner 1 in which an indoor unit according to an embodiment of the present invention is employed.
  • the air conditioner 1 is a split type air conditioner, and mainly connects the outdoor unit 2, the ceiling-mounted indoor unit 4 (corresponding to the indoor unit), and the outdoor unit 2 and the ceiling-mounted indoor unit 4. It has a liquid refrigerant communication pipe 5 and a gas refrigerant communication pipe 6, and constitutes a vapor compression refrigerant circuit 10.
  • Such an air conditioner 1 can perform a cooling operation and a heating operation.
  • the outdoor unit 2 is installed outdoors, and mainly includes a compressor 21, a four-way switching valve 22, an outdoor heat exchanger 23, an expansion valve 24, a liquid side shut-off valve 25, and a gas side shut-off valve. 26.
  • the compressor 21 is a mechanism that sucks low-pressure gas refrigerant and discharges it after compressing it into a high-pressure gas refrigerant.
  • a volumetric compression element such as a rotary type or a scroll type accommodated in a casing (not shown) is used by a compressor motor 21a also accommodated in the casing.
  • a driven hermetic compressor is employed as the compressor motor 21a can change the rotation speed (namely, operation frequency) with an inverter apparatus (not shown), and, thereby, capacity control of the compressor 21 is possible.
  • the four-way switching valve 22 is a valve for switching the direction of the refrigerant flow when switching between the cooling operation and the heating operation.
  • the four-way switching valve 22 can connect the discharge side of the compressor 21 and the gas side of the outdoor heat exchanger 23 and can connect the gas side closing valve 26 and the suction side of the compressor 21 during cooling operation. (Refer to the solid line of the four-way switching valve 22 in FIG. 1).
  • the four-way switching valve 22 connects the discharge side of the compressor 21 and the gas side shut-off valve 26 and connects the gas side of the outdoor heat exchanger 23 and the suction side of the compressor 21 during heating operation. (Refer to the broken line of the four-way switching valve 22 in FIG. 1).
  • the outdoor heat exchanger 23 is a heat exchanger that functions as a refrigerant radiator during cooling operation and functions as a refrigerant evaporator during heating operation.
  • the outdoor heat exchanger 23 has a liquid side connected to the expansion valve 24 and a gas side connected to the four-way switching valve 22.
  • the expansion valve 24 reduces the pressure of the high-pressure liquid refrigerant radiated in the outdoor heat exchanger 23 before sending it to the indoor heat exchanger 42 (described later).
  • the expansion valve 24 is an electric expansion valve capable of reducing the pressure before sending the high-pressure liquid refrigerant radiated in the indoor heat exchanger 42 to the outdoor heat exchanger 23 during the heating operation.
  • the liquid side shutoff valve 25 and the gas side shutoff valve 26 are valves provided at connection ports with external devices and pipes (specifically, the liquid refrigerant communication pipe 5 and the gas refrigerant communication pipe 6).
  • the liquid side closing valve 25 is connected to the expansion valve 24.
  • the gas side closing valve 26 is connected to the four-way switching valve 22.
  • the outdoor unit 2 is provided with an outdoor fan 27 for sucking outdoor air into the unit 2 and supplying the outdoor heat to the outdoor heat exchanger 23 and then discharging the air outside the unit 2.
  • the outdoor heat exchanger 23 is a heat exchanger that radiates and evaporates the refrigerant using outdoor air as a cooling source or a heating source.
  • a propeller fan driven by an outdoor fan motor 27a is employed as the outdoor fan 27, a propeller fan driven by an outdoor fan motor 27a is employed as the outdoor fan 27, a propeller fan driven by an outdoor fan motor 27a is employed.
  • the outdoor fan motor 27a can vary the rotation speed (that is, the operating frequency) by an inverter device (not shown), thereby enabling the air volume control of the outdoor fan 27.
  • the outdoor unit 2 is provided with a sensor for detecting suction pressure and discharge pressure, a sensor for detecting the temperature of the refrigerant on the liquid side of the outdoor heat exchanger 23, and a sensor for detecting the outside air temperature. It has been. Furthermore, the outdoor unit 2 has an outdoor control unit 39 that controls the operation of each device constituting the outdoor unit 2.
  • the outdoor control unit 39 includes a microcomputer including a CPU and a memory, and can exchange control signals and the like with an indoor control unit 67 (described later) of the ceiling-mounted indoor unit 4. .
  • the liquid refrigerant communication pipe 5 is a refrigerant pipe connected to the liquid side closing valve 25.
  • the liquid refrigerant communication tube 5 is a refrigerant tube capable of leading the refrigerant out of the outdoor unit 2 from the outlet of the outdoor heat exchanger 23 that functions as a refrigerant radiator during cooling operation.
  • the liquid refrigerant communication pipe 5 is also a refrigerant pipe capable of introducing a refrigerant from the outside of the outdoor unit 2 to the inlet of the outdoor heat exchanger 23 that functions as a refrigerant evaporator during heating operation.
  • the gas refrigerant communication pipe 6 is a refrigerant pipe connected to the gas side closing valve 26.
  • the gas refrigerant communication tube 6 is a refrigerant tube capable of introducing a refrigerant from outside the outdoor unit 2 to the suction of the compressor 21 during the cooling operation.
  • the gas refrigerant communication pipe 6 is also a refrigerant pipe capable of leading the refrigerant out of the outdoor unit 2 from the discharge of the compressor 21 during heating operation.
  • the ceiling-mounted indoor unit 4 employs a type of ceiling-mounted air conditioner called a ceiling-embedded type.
  • the ceiling-mounted indoor unit 4 includes a casing 51 that houses various components therein, four horizontal blades 71a, 71b, 71c, 71d, various sensors 61, 62, 63, an indoor control section 67 (corresponding to the control section), and a remote control receiving section 69.
  • the casing 51 includes a casing body 51 a installed on the ceiling of the air conditioning room, and a decorative panel 52 that is disposed below the casing body 51 a and corresponds to the lower surface of the casing 51.
  • the casing main body 51 a is disposed by being inserted into an opening formed in the ceiling U of the air conditioning room.
  • the decorative panel 52 is arrange
  • FIG. 2 is an external perspective view of the ceiling-mounted indoor unit 4.
  • 3 is a schematic side cross-sectional view of the ceiling-mounted indoor unit 4, which is a cross-sectional view taken along the line I-OI of FIG. FIG.
  • FIG. 4 is a schematic plan view showing a state where the top plate 53 of the ceiling-mounted indoor unit 4 is removed.
  • FIG. 5 is a plan view of the decorative panel 52 of the ceiling-mounted indoor unit 4 as viewed from the air-conditioned room.
  • FIG. 9 is a block diagram schematically showing the indoor controller 67 and various devices in the ceiling-mounted indoor unit 4 connected to the controller 67.
  • the casing body 51a is a substantially octagonal box-like body in which long sides and short sides are alternately formed in a plan view, and the lower surface thereof is open.
  • the casing body 51 a includes a substantially octagonal top plate 53 in which long sides and short sides are alternately and continuously formed, and a side plate 54 extending downward from the peripheral edge of the top plate 53.
  • the side plate 54 includes side plates 54 a, 54 b, 54 c and 54 d corresponding to the long sides of the top plate 53, and side plates 54 e, 54 f, 54 g and 54 h corresponding to the short sides of the top plate 53.
  • the side plate 54h constitutes a portion through which the indoor refrigerant pipes 43 and 44 for connecting the indoor heat exchanger 42 and the refrigerant communication pipes 5 and 6 pass (see FIG. 4).
  • the indoor fan 41 and the indoor heat exchanger 42 are mainly arrange
  • the indoor fan 41 sucks air in the air-conditioned room into the casing main body 51a through the suction port 55, and air from the casing main body 51a through the blowout port 56 after the heat exchanged in the indoor heat exchanger 42. It is a centrifugal blower that blows out.
  • the indoor fan 41 has an indoor fan motor 41a provided at the center of the top plate 53 of the casing body 51a, and an impeller 41b that is connected to the indoor fan motor 41a and is driven to rotate.
  • the impeller 41b is an impeller having turbo blades. Air can be sucked into the impeller 41b from below and blown out toward the outer peripheral side of the impeller 41b in plan view.
  • the indoor fan motor 41a can vary the rotation speed (that is, the operating frequency) by an inverter device (not shown), thereby enabling the air volume control of the indoor fan 41.
  • the indoor heat exchanger 42 is a heat exchanger that functions as a refrigerant evaporator during the cooling operation and functions as a refrigerant radiator during the heating operation.
  • the indoor heat exchanger 42 is connected to the refrigerant communication pipes 5 and 6 (see FIG. 1) via the indoor refrigerant pipes 43 and 44, and is bent and arranged so as to surround the indoor fan 41 in a plan view. It consists of a finned tube heat exchanger.
  • the indoor heat exchanger 42 performs heat exchange between the air in the air-conditioned room sucked into the casing body 51a and the refrigerant, cools the air in the air-conditioned room during the cooling operation, and heats the air in the air-conditioned room during the heating operation. Can be done.
  • a drain pan 45 is installed below the indoor heat exchanger 42 and below the casing body 51a.
  • the drain pan 45 is for receiving drain water generated by condensation of moisture in the air by the indoor heat exchanger 42.
  • a bell mouth 41 c for guiding the air sucked from the suction port 55 to the impeller 41 b of the indoor fan 41 is disposed in the suction hole 45 j of the drain pan 45.
  • the decorative panel 52 is a plate-like body having a substantially quadrangular shape in plan view, and mainly includes a panel body 52a fixed to the lower end portion of the casing body 51a.
  • a blowout port 56 and a suction port 55 are formed in the panel main body 52a.
  • the blowout port 56 is an opening for blowing air into the air-conditioned room, and is positioned along the peripheral edge of the panel main body 52a in plan view.
  • the suction port 55 is an opening for sucking air in the air-conditioned room, and is positioned so as to be surrounded by the substantially center of the panel main body 52a, that is, the blow-out port 56 in a plan view.
  • the suction port 55 is a substantially quadrangular opening, and the suction port 55 includes a suction grill 57 and a suction filter for removing dust in the air sucked from the suction port 55. 58 is provided.
  • the blowout port 56 is a substantially quadrangular annular opening. Thereby, not only the direction corresponding to each side of the quadrilateral of the panel body 52a (refer to the directions of arrows X1, X2, X3, and X4 in FIG. 5), but also the respective corners of the square of the panel body 52a. The conditioned air is also blown out in the direction (see the directions of arrows Y1, Y2, Y3, and Y4 in FIG. 5).
  • the four horizontal blades 71a to 71d are positioned so as to correspond to the respective sides of the quadrangular shape of the panel main body 52a, and are provided so as to be rotatable with respect to the outlet 56.
  • the horizontal blades 71a to 71d can change the vertical air direction angle of the conditioned air blown into the air conditioned room. More specifically, the horizontal blades 71a to 71d are plate-like members extending along the square sides of the outlet 56, and both ends in the longitudinal direction of the horizontal blades 71a to 71d are connected to the outlet.
  • a pair of blade support portions 72 and 73 arranged so as to block a part of the mouth 56 are supported by the decorative panel 52 so as to be rotatable around a longitudinal axis.
  • the horizontal blades 71a to 71d are driven by blade drive motors 74a, 74b, 74c, and 74d.
  • the horizontal blades 71a to 71d can independently change the airflow direction angle in the vertical direction and can reciprocate in the vertical direction with respect to the outlet 56.
  • the blade drive motors 74a to 74d are provided in the blade support portions 72 and 73, and are directly attached to the horizontal blades 71a to 71d.
  • the blowout port 56 is connected to the side air outlets 56a, 56b, 56c, and 56d corresponding to the square sides of the panel main body 52a and the square corners of the panel main body 52a.
  • corner outlets 56e, 56f, 56g, and 56h are divided into corner outlets 56e, 56f, 56g, and 56h corresponding to the parts.
  • air conditioning target area A an area in which air conditioning is performed mainly by the conditioned air blown from the side air outlet 56a (see arrows X1, Y1, and Y2 in FIG. 5)
  • air conditioning target area A see FIG. 6
  • an area where air conditioning is performed mainly by conditioned air blown from the side air outlet 56b see arrows X2, Y2, and Y3 in FIG.
  • air conditioning target area B an area where air conditioning is performed mainly by conditioned air blown from the side air outlet 56c (see arrows X3, Y3, and Y4 in FIG. 5) is referred to as an “air conditioning target area C”.
  • air conditioning target area D an area where air conditioning is performed mainly by conditioned air blown out from the side air outlet 56d (see arrows X4, Y4, and Y1 in FIG. 5) is referred to as an “air conditioning target area D”.
  • sensors provided in the ceiling-mounted indoor unit 4 include an intake air temperature sensor 61, a human detection sensor 62 (corresponding to a human detection unit), and a floor temperature sensor 63.
  • the intake air temperature sensor 61 is a temperature sensor that detects an intake air temperature Tr that is the temperature of the air in the air-conditioned room that is sucked into the casing main body 51 a through the suction port 55.
  • the suction air temperature sensor 61 is provided in the suction port 55 as shown in FIG.
  • the human detection sensor 62 is an infrared sensor that detects the distribution of people in the air-conditioned room (including the presence or absence of people in the air-conditioning target areas A to D according to FIG. 6).
  • One human detection sensor 62 is disposed at a position where the lower part of the decorative panel 52 can be arranged, here, at a corner of the decorative panel 52 (see FIGS. 2 and 5). More specifically, the human detection sensor 62 is provided at a position on the outer peripheral side of the corner outlet 56f so as to protrude downward from the surface of the decorative panel 52, and the shape of the decorative panel 52 in a plan view is substantially the same. It is circular.
  • the human detection sensor 62 is a type of sensor that detects the presence or absence of a person in the air-conditioned room based on a change in infrared radiation energy radiated from an object. As shown in FIG. 7, the human detection sensor 62 is connected to an infrared light receiving element (not shown).
  • An opening 62a for receiving infrared rays is formed.
  • the opening 62a may be covered with a transparent member capable of causing the infrared light receiving element to receive infrared light.
  • the opening 62a can be rotated 360 degrees in a plan view of the decorative panel 52, and can detect the presence or absence of a person in each of the air-conditioning target areas A to D.
  • the detection range in the plan view of the human detection sensor 62 is such that the detection angles ⁇ , ⁇ , ⁇ , and ⁇ are the same when detecting the presence or absence of a person in any air conditioning target area A to D.
  • the range is about 90 degrees.
  • the detection range in the side view of the human detection sensor 62 is such that each detection angle ⁇ is about 135 degrees when detecting the presence or absence of a person in any of the air conditioning target areas A to D. It is a range.
  • the human detection sensor 62 is not limited to the above-described structure.
  • the infrared light receiving element may rotate, or each of the air conditioning target areas A to It may have four infrared light receiving elements facing the direction of D.
  • the floor temperature sensor 63 is an infrared sensor that detects the temperature Tf of the floor surface in the air-conditioned room.
  • the floor temperature sensor 63 is disposed at a position where the floor panel 63 can be disposed below the decorative panel 52, in this case, at a corner of the decorative panel 52. More specifically, like the human detection sensor 62, the floor temperature sensor 63 is provided at the position on the outer peripheral side of the corner outlet 56f so as to face downward from the surface of the decorative panel 52.
  • the floor temperature sensor 63 detects the temperature Tf of the floor surface in the air-conditioned room based on the infrared radiation energy radiated from the object.
  • the indoor control unit 67 is a microcomputer composed of a CPU and a memory, and controls the operation of each device constituting the ceiling-mounted indoor unit 4. Specifically, as shown in FIG. 9, the indoor control unit 67 includes various sensors 61 to 63 in the indoor unit 4, an indoor fan motor 41a, blade drive motors 74a to 74d, an outdoor unit communication unit 68, and The remote control receiver 69 is electrically connected.
  • the outdoor unit communication unit 68 is for exchanging control signals and the like with the outdoor control unit 39 of the outdoor unit 2 and is electrically connected to the outdoor control unit 39 via the wiring 9. (See FIG. 1).
  • Such an indoor control unit 67 is sent from the detection results of the various sensors 61 to 63, various instructions given by the user in the air-conditioned room via the remote controller 99 (see FIG. 1), and the outdoor control unit 39. Based on the control signal, drive control of the indoor fan motor 41a is performed, and drive control of each of the blade drive motors 74a to 74d is performed. For example, when the user gives an instruction to start heating operation or cooling operation via the remote controller 99, the indoor control unit 67 starts driving the motors 41a, 74a to 74d. In this case, the outdoor unit communication unit 68 sends to the outdoor control unit 39 a control signal indicating that the driving of the outdoor unit 2 is started and what kind of operation start instruction is given.
  • the indoor control unit 67 stops driving the motors 41a, 74a to 74d.
  • the outdoor unit communication unit 68 sends a control signal for stopping the driving of the outdoor unit 2 to the outdoor control unit 39.
  • the indoor control unit 67 fixes the horizontal blades 71a to 71d based on the request from the remote controller 99, the detection values of the various sensors 61 to 63, and the like.
  • the state or the swing state can be set.
  • the fixed state refers to a state in which the wind direction angles of the horizontal blades 71a to 71d are fixed at a desired wind direction angle by driving the blade driving motors 74a to 74d. As shown in FIG.
  • the wind direction angle of each of the horizontal blades 71a to 71d is the wind direction angle P0 (horizontal blown wind direction) that is the wind direction angle at which the conditioned air blows out in the horizontal direction and the wind direction angle at which the conditioned air blows out to the lowest direction.
  • the wind direction angles of the horizontal blades 71a to 71d are the wind direction P0, the wind direction P1 that is lower than the wind direction P0, the wind direction P2 that is lower than the wind direction P1, the wind direction P3 that is lower than the wind direction P2, and the most downward wind direction. It can be changed to 5 levels of P4.
  • the blade drive motors 74a to 74d are driven, and the wind direction angles of the horizontal blades 71a to 71d are repeatedly changed up and down within the wind direction change range (here, between the wind direction P0 and the wind direction P4).
  • the indoor control unit 67 can control the wind direction angle described above for each of the horizontal blades 71a to 71d.
  • Each of the horizontal blades 71a to 71d takes a state in which the air outlet 56 (specifically, the side air outlets 56a to 56d) is closed when the ceiling-mounted indoor unit 4 is not in operation. .
  • wind direction P0c the wind direction angle when the horizontal blades 71a to 71d are in the closed state.
  • Each of the horizontal blades 71a to 71d can take one of the wind directions P0 to P4 in the fixed state or the swing state as described above.
  • the indoor control unit 67 differs from the remaining horizontal blades 71a to 71 for at least one of the four horizontal blades 71a to 71d for a predetermined time after the operation start instruction of the ceiling-mounted indoor unit 4 is made. Rotation control of the horizontal blades 71a to 71d is performed so as to perform a swing operation. For example, as shown in FIGS.
  • the indoor control unit 67 allows the horizontal blades 71a to 71d adjacent to each other (specifically, the horizontal blades 71a and 71b, 71b and 71c, and 71c and 71d) to be opposite to each other.
  • the horizontal blades 71a to 71d (specifically, the horizontal blades 71a and 71c and 71b and 71d) positioned opposite to each other are swung while taking the same posture in the same direction.
  • the indoor control unit 67 performs rotation control of the horizontal blades 71a to 71d so that the swing operation of the horizontal blades 71a and 71c and the swing operation of the horizontal blades 71b and 71d are synchronized (hereinafter, the horizontal blades 71a and 71c).
  • the operations 71a to 71d are called synchronous swing operations).
  • the indoor control unit 67 performs rotation control of the horizontal blades 71a to 71d so that the swing of the horizontal blades 71a to 71d is temporarily stopped at a predetermined timing. Furthermore, the indoor control unit 67 determines the predetermined timing according to the detection result of the human detection sensor 62.
  • the horizontal blades 71a corresponding to the side air outlets 56a of the decorative panel 52 and the horizontal blades 71c corresponding to the side air outlets 56c are swinging at the same timing and taking the same posture.
  • the horizontal blades 71b corresponding to the side air outlets 56b and the horizontal blades 71d corresponding to the side air outlets 56d perform a swing operation at the same timing and in the same posture.
  • the horizontal blades 71a and 71c start to rotate before the horizontal blades 71b and 71d.
  • the horizontal blades 71a and 71c are both rotated at the same rotation speed in the direction in which the air outlet 56 is closed (wind direction P0c) to the wind direction P4, that is, in the downward direction. Accordingly, the wind direction angles of the horizontal blades 71a and 71c reach the wind direction P4 from the wind direction P0 to the wind direction P1, the wind direction P2, and the wind direction P3 at the same timing, and eventually reach the wind direction P4 almost simultaneously.
  • the horizontal blades 71a and 71c that have reached the wind direction P4 maintain the posture of the wind direction P4 during the pause period TA, and after the pause period TA has elapsed, the horizontal blades 71a and 71c change the rotation direction from downward to upward.
  • the swing operation is temporarily stopped when the rotation direction of the horizontal blades 71a to 71d changes.
  • the operations of the horizontal blades 71a to 71d in FIG. 11 are operations performed in the “default mode” performed regardless of the detection result by the human detection sensor 62. Further, the operation of the horizontal blades 71a to 71d in FIG. 11 is performed in the “draft prevention mode” and “draft mode” in which the synchronous swing operation of the horizontal blades 71a to 71d is temporarily stopped according to the detection result of the human detection sensor 62. It is also an operation while the detection sensor 62 is not detecting a person.
  • the “draft prevention mode” means that the person in the air conditioning room does not feel the draft when the synchronous swing operation of the horizontal blades 71a to 71d is temporarily stopped so as not to apply the air conditioned air to the person in the air conditioning room. This is a mode that does not give
  • the “draft mode” is a mode in which conditioned air is applied to a person in the air conditioned room when the horizontal blades 71a to 71d synchronous swing operation is temporarily stopped.
  • the wind direction angles of the horizontal blades 71b and 71d become the wind direction P4 at the same time.
  • the horizontal blades 71a and 71c are fixed during the rest period TA in a posture where the wind direction angle is the wind direction P0 or P4, while the horizontal blades 71b and 71c Is fixed during the rest period TA in a posture in which the wind direction angle is the wind direction P4 or P0.
  • the air blown out from the side air outlets 56a and 56c is mixed with a part of the air in the air-conditioning room, and blown out in the direction of the wind direction P0 or P4 depending on the posture taken by the horizontal blades 71a and 71c during the rest period TA. Is done.
  • the air blown out from the side air outlets 56b and 56d is mixed with a part of the air in the air conditioning room, and is blown out in the direction of the wind direction P4 or P0 depending on the posture taken by the horizontal blades 71b and 71d during the rest period TA.
  • the conditioned air is surely sent far away, and if the wind direction is “P4”, the conditioned air is directed to the floor in the conditioned room. Will be sent. Therefore, compared with the case where the individual horizontal blades 71a to 71d are swung without providing the pause period TA, the conditioned air can be sent in a desired direction while stirring the air in the conditioned room.
  • FIG. 12 shows the operation of the horizontal blades 71a to 71d when the “draft mode” or the “draft prevention mode” is set and the human detection sensor 62 detects a person. Therefore, the timing at which the horizontal blades 71a to 71d temporarily stop the synchronous swing operation in FIG. 12 is different from that in FIG. In FIG. 12, when the detection result by the human detection sensor 62 indicates that there is no person in the air-conditioned room, the predetermined timing at which the horizontal blades 71a to 71d temporarily stop the synchronous swing operation is the horizontal blades 71a to 71a. It is when the rotation direction of 71d changes.
  • the predetermined timing at which the horizontal blades 71a to 71d pause the synchronous swing operation varies depending on the set mode.
  • the predetermined timing when the draft prevention mode is set is when the horizontal blades 71a to 17d reach an angle at which the conditioned air is sent in a direction where no one is present. That is, in the draft prevention mode, at a predetermined timing, the horizontal blades 71a to 71d are temporarily stopped in a posture in which the wind direction angle is in a direction where no one is present.
  • the predetermined timing when the draft mode is set is when the horizontal blades 71a to 17d reach an angle at which the conditioned air is sent in the direction in which the person is present. That is, in the draft mode, at a predetermined timing, the horizontal blades 71a to 71d are temporarily stopped in a posture in which the wind direction angle is in the direction in which the person is present.
  • the predetermined timing at which the horizontal blades 71a to 71d are temporarily stopped changes according to the detection result of the human detection sensor 62 and the set mode.
  • the rest period TA is determined in advance to a predetermined value by desktop calculation, simulation, experiment, or the like, regardless of the type of operation, the set temperature, the detection result of the human detection sensor 62, or the like.
  • the length of the pause period TA is a maximum of 5 seconds, for example, 3 seconds.
  • the indoor control unit 67 ends the operation of the horizontal blades 71a to 71d according to FIGS. 11 and 12 described above after a predetermined time has elapsed from the start of operation, and inclines the horizontal blades 71a to 71d by a predetermined angle.
  • the horizontal blades 71a to 71d that have been performing the synchronous swing operation and the pause operation for a predetermined time from the start of operation stop these operations, and the wind direction angles of the horizontal blades 71a to 71d are the wind directions P0 to P4. Either. For example, after a predetermined time has elapsed from the start of operation, the wind direction angle of each of the horizontal blades 71a to 71d takes any of the wind directions P0 to P4 depending on the type of operation, the set temperature, the air volume set via the remote controller 99, and the like. obtain.
  • the horizontal blades 71a to 71d perform swing operations that individually rotate in the vertical direction, so that any one of the wind directions P0 to P4 can be achieved. Can be taken.
  • the predetermined time during which the operations of the horizontal blades 71a to 71d described above are performed may be, for example, 5 minutes, and may be determined in advance by desktop calculation, simulation, experiment, or the like. The predetermined time is appropriately determined by the indoor control unit 67 according to the state of the air-conditioned room at that time (specifically, the floor temperature Tf, the presence or absence of a person in the air-conditioned room, the intake air temperature Tr, etc.). May be.
  • the indoor control unit 67 controls the air volume of the indoor fan 41.
  • the indoor controller 67 changes the rotation speed of the indoor fan motor 41a, so that the air volume H having the largest rotation speed and the large air volume H is smaller than the rotation speed of the air volume H, and the medium air volume.
  • the air volume L can be changed in four stages between M, the air volume L with a smaller air volume than the rotational speed of the air volume M, and the air volume LL with a minimum air volume smaller than the rotational speed of the air volume L.
  • the air volume H, the air volume M, and the air volume L can be set based on a request from the remote controller 99, detection values of the various sensors 61 to 63, and the like.
  • the air volume LL cannot be set according to a request from the remote controller 99, and is set in a control manner in a predetermined control state.
  • the remote control receiver 69 is for receiving various requests from the remote controller 99, and is composed of, for example, an infrared light receiving element. Specifically, the remote control receiving unit 69 receives a cooling operation or heating operation start instruction made by the user via the remote controller 99, or sets a set temperature in the air-conditioned room, a desired air volume and direction, and a timer. It is possible to receive an instruction to turn on and off, an instruction to swing the horizontal blades 71a to 71d individually, or a mode to fix the wind direction angle of the horizontal blades 71a to 71d. Further, the remote control receiving unit 69 accepts any one of the above-described default mode, draft mode, and draft prevention mode as a mode for swinging the horizontal blades 71a to 71d during a predetermined time from the start of operation. Can do.
  • FIGS. 13 and 14 are flowcharts showing the flow of overall operation of the air conditioner 1 including the ceiling-mounted indoor unit 4 according to this embodiment. is there.
  • Step S1 When the user gives an instruction to start operation such as heating operation or cooling operation of the air conditioner 1 via the remote controller 99 (Yes in S1), the outdoor unit 2 and the ceiling-mounted indoor unit 4 Started operation.
  • Steps S2 to S4 When the “default mode” is set by the user via the remote controller 99 (Yes in Step S2), the indoor control unit 67 performs a synchronous swing operation on the plurality of horizontal blades 71a to 71d. To start.
  • the indoor control unit 67 swings while the horizontal blades 71a and 71c and the horizontal blades 71b and 71d positioned opposite to each other are synchronized and adopt the same posture, and the adjacent horizontal blades 71a to 71d are synchronized with each other.
  • the rotation control of the horizontal blades 71a to 71d is started so as to swing in the reverse direction (S3).
  • the indoor control unit 67 keeps the posture taken by the horizontal blades 71a to 71d at the moment when the rotation direction changes.
  • the inter-swing is temporarily stopped (S4). That is, the horizontal blades 71a to 71d are temporarily stopped in the attitude of the wind direction P0 or the wind direction P4.
  • Step S5 Step S4 is repeated until a predetermined time has elapsed from Step S3 (No in S5).
  • Step S6 In step S2, when the default mode is not set (No in S2), the draft mode or the draft prevention mode is set. Therefore, in this case, the human detection sensor 62 starts detecting whether or not there is a person in the air-conditioned room. Then, the indoor control unit 67 starts a synchronous swing operation for the plurality of horizontal blades 71a to 71d (S6).
  • Steps S7 to S8 When the human detection sensor 62 detects that a person is present in the air-conditioned room (Yes in S7), the indoor control unit 67 temporarily stops the horizontal blades 71a to 71d performing the synchronous swing operation. The predetermined timing and the posture taken by the horizontal blades 71a to 71d at this timing are determined (S8).
  • Steps S9 to S11 When the draft mode is set (Yes in S9), the indoor control unit 67 sets the horizontal blades 71a to 71d performing the synchronous swing operation at the predetermined timing determined in step S8. The swing is paused during the rest period TA. At this time, the horizontal blades 71a to 71d are temporarily stopped in a posture to send air in the direction in which the person is present (S10). Until the predetermined time has elapsed from step S6 (No in S11), the operation in step S10 is repeated. Steps S12 to S14: When the draft prevention mode is set (Yes in S12), the indoor control unit 67 sets the horizontal blades 71a to 71d performing the synchronous swing operation at the predetermined timing determined in step S8.
  • step S13 the operation in step S13 is repeated.
  • Step S15 In step S7, when the presence of a person in the air-conditioned room is not detected by the human detection sensor 62 (No in S7), the same synchronization as in the default mode is performed until a predetermined time elapses (No in S15). Swing motion is performed.
  • Step S16 In steps S5, S11, S14, and S15, when a predetermined time has elapsed from the start of the synchronous swing operation (Yes in S5, Yes in S11, Yes in S14, Yes in S15), the indoor control unit 67 The synchronous swing operation and the pause operation of 71a to 71d are terminated (S16).
  • Steps S17 to S18 When the content of the operation instructed in Step S1 is “heating operation” (Yes in S17), the indoor control unit 67 heats the air-conditioned room according to a desired setting. Then, based on the wind direction and the air volume requested via the remote controller 99, the airflow direction control and the air volume control of the horizontal blades 71a to 71d are performed (S18).
  • Steps S19 to S20 When the content of the operation instructed in Step S1 is “cooling operation” (Yes in S19), the indoor control unit 67 causes the air-conditioned room to be cooled according to a desired setting. Then, based on the wind direction and the air volume requested via the remote controller 99, the airflow direction control and the air volume control of the horizontal blades 71a to 71d are performed (S20). Step S21: Until the operation end of the air conditioner 1 is instructed (No in S21), the operations in steps S18 and S20 are continued. When the end of the operation of the air conditioner 1 is instructed via the remote controller 99 (Yes in S21), the outdoor unit 2 and the ceiling-mounted indoor unit 4 end the operation.
  • the heating operation is performed by circulating the refrigerant in the refrigerant circuit 10 so that the outdoor heat exchanger 23 functions as a refrigerant evaporator and the indoor heat exchanger 42 functions as a refrigerant radiator. In this operation, air is heated and supplied as air-conditioned air into the air-conditioned room.
  • the outdoor heat exchanger 23 functions as a refrigerant evaporator and the indoor heat exchanger 42 functions as a refrigerant radiator (that is, indicated by a broken line of the four-way switching valve 22 in FIG. 1).
  • the four-way selector valve 22 is switched so that In the refrigerant circuit 10 in such a state, the low-pressure refrigerant in the refrigeration cycle is sucked into the compressor 21 and is discharged after being compressed to a high pressure in the refrigeration cycle.
  • the high-pressure refrigerant discharged from the compressor 21 is sent to the indoor heat exchanger 42 through the four-way switching valve 22, the gas side closing valve 26 and the gas refrigerant communication pipe 6.
  • the high-pressure refrigerant sent to the indoor heat exchanger 42 radiates heat by exchanging heat with the air in the air-conditioned room supplied by the indoor fan 41 in the indoor heat exchanger 42.
  • the air in the air-conditioned room is heated to become air-conditioned air, and is blown into the air-conditioned room from the air outlets 56 (more specifically, the side air outlets 56a to 56d and the corner air outlets 56e to 56h).
  • the high-pressure refrigerant that has radiated heat in the indoor heat exchanger 42 is sent to the expansion valve 24 through the liquid refrigerant communication tube 5 and the liquid-side shut-off valve 25, and is decompressed to a low pressure in the refrigeration cycle.
  • the low-pressure refrigerant decompressed by the expansion valve 24 is sent to the outdoor heat exchanger 23.
  • the low-pressure refrigerant sent to the outdoor heat exchanger 23 evaporates by exchanging heat with the air in the air-conditioned room supplied by the outdoor fan 27 in the outdoor heat exchanger 23.
  • the low-pressure refrigerant evaporated in the outdoor heat exchanger 23 is again sucked into the compressor 21 through the four-way switching valve 22.
  • the intake air temperature Tr is controlled to be the target air temperature Trs requested from the remote controller 99 or the like. That is, in the heating operation, when the intake air temperature Tr is lower than the target air temperature Trs, the above-described operation control (hereinafter, this state is referred to as a heating thermo-on state) is performed.
  • the intake air temperature Tr reaches the target air temperature Trs, the compressor 21 is stopped so as not to circulate the refrigerant in the refrigerant circuit 10, and the air volume of the indoor fan 41 is set to the air volume LL. Control to be changed (hereinafter, this state is referred to as a heating thermo-off state) is performed.
  • the indoor control unit 67 uses the detection results of the various sensors 61 to 63 so as to improve the comfort of the user in the air-conditioned room. Based on this, it is possible to control while setting the wind direction angle of each horizontal blade 71a to 71d and the air volume of the indoor fan 41 to various wind directions and air volumes.
  • the indoor control unit 67 when the human detection sensor 62 detects the presence of a person in the air-conditioning target areas A to D, the indoor control unit 67, based on the detected value, the side corresponding to the air-conditioning target area in which the presence of the person is detected.
  • the wind direction angle of the horizontal blades at the air outlet can be set to the wind direction P0.
  • the indoor control unit 67 sets the horizontal blades at the side outlet corresponding to the air conditioning target area in which the presence of a person is detected. Can be set to wind directions P1 to P3 and the like that are lower than the wind direction P0.
  • the indoor control unit 67 sets the airflow direction angle of each horizontal blade 71a to 71d to a downward wind direction (for example, the wind direction P3, P4, etc.) can be set.
  • the wind direction angle of each horizontal blade 71a to 71d is higher than the wind direction P3, P4, etc. (for example, the wind direction P0, P1 etc.).
  • the indoor control unit 67 includes an average temperature between the intake air temperature Tr detected by the intake air temperature sensor 61 and the floor surface temperature Tf in the air-conditioning room, a combination of the average temperature and the detection result of the human detection sensor 62, and the like. Based on the above, the wind direction angle and the wind flow of each of the horizontal blades 71a to 71d may be changed.
  • the cooling operation is performed by circulating the refrigerant in the refrigerant circuit 10 so that the outdoor heat exchanger 23 functions as a refrigerant radiator and the indoor heat exchanger 42 functions as a refrigerant evaporator. In this operation, air is cooled and supplied to the air-conditioned room as conditioned air. In the cooling operation, the outdoor heat exchanger 23 functions as a refrigerant radiator and the indoor heat exchanger 42 functions as a refrigerant evaporator (that is, indicated by the solid line of the four-way switching valve 22 in FIG. 1).
  • the four-way selector valve 22 is switched so that In the refrigerant circuit 10 in such a state, the low-pressure refrigerant in the refrigeration cycle is sucked into the compressor 21 and is discharged after being compressed to a high pressure in the refrigeration cycle.
  • the high-pressure refrigerant discharged from the compressor 21 is sent to the outdoor heat exchanger 23 through the four-way switching valve 22.
  • the high-pressure refrigerant sent to the outdoor heat exchanger 23 radiates heat by exchanging heat with outdoor air supplied by the outdoor fan 27 in the outdoor heat exchanger 23.
  • the high-pressure refrigerant that has dissipated heat in the outdoor heat exchanger 23 is sent to the expansion valve 24 and is decompressed to a low pressure in the refrigeration cycle.
  • the low-pressure refrigerant decompressed by the expansion valve 24 is sent to the indoor heat exchanger 42 through the liquid side closing valve 25 and the liquid refrigerant communication pipe 5.
  • the low-pressure refrigerant sent to the indoor heat exchanger 42 evaporates by exchanging heat with air in the air-conditioned room supplied by the indoor fan 41 in the indoor heat exchanger 42.
  • the air in the air-conditioned room is cooled to become air-conditioned air, and is blown into the air-conditioned room from the air outlet 56 (more specifically, the side air outlets 56a to 56d and the corner air outlets 56e to 56h).
  • the low-pressure refrigerant evaporated in the indoor heat exchanger 42 is again sucked into the compressor 21 through the gas refrigerant communication pipe 6, the gas side closing valve 26 and the four-way switching valve 22.
  • the intake air temperature Tr is controlled to be the target air temperature Trs requested from the remote controller 99 or the like. That is, in the cooling operation, when the intake air temperature Tr is higher than the target air temperature Trs, the above-described operation control (hereinafter, this state is referred to as a cooling thermo-on state) is performed.
  • the compressor 21 is stopped so as not to circulate the refrigerant in the refrigerant circuit 10, and the air volume of the indoor fan 41 is set to the air volume LL. Control to be changed (hereinafter, this state is referred to as a cooling thermo-off state) is performed.
  • the indoor control unit 67 includes various sensors 61 so that the comfort of the user in the air-conditioned room can be improved. Based on the detection results of .about.63, the wind direction angle of each horizontal blade 71a to 71d and the air volume of the indoor fan 41 can be controlled while setting various wind directions and air volumes.
  • the indoor control unit 67 when the human detection sensor 62 detects the presence of a person in the air-conditioning target areas A to D, the indoor control unit 67, based on the detected value, the side corresponding to the air-conditioning target area in which the presence of the person is detected.
  • the wind direction angle of the horizontal blades at the air outlet can be set to the wind direction P0.
  • the wind direction angle P0 of the horizontal blades at the side air outlets corresponding to the air conditioning target area in which the presence of a person is detected is determined. It is possible to set the wind direction P1 to P3 or the like downward. Thereby, it is possible to suppress discomfort caused by the user's draft existing in the air-conditioning target areas A to D, and to improve the comfort of the user.
  • the ceiling-mounted indoor unit 4 has the following characteristics. (1) In the conventional indoor unit, the air in the air-conditioned room is agitated by simply swinging the horizontal blade. However, in this indoor unit, even if the conditioned air is agitated, it becomes difficult to send the conditioned air in a desired direction, for example. In contrast, in the ceiling-mounted indoor unit 4 according to the present embodiment, the horizontal blades 71a to 71d are swung at different timings while the at least one horizontal blade 71a to 71d is swinging differently from the other horizontal blades 71a to 71d. The swings 71a to 71d are temporarily stopped, and the horizontal blades 71a to 71d are temporarily stopped in a predetermined posture.
  • the air blown from the blowout port 56 is mixed with a part of the air in the air-conditioned room by the swing operation of the horizontal blades 71a to 71d, and the horizontal blades 71a to 71d during the period in which the swing is temporarily stopped.
  • the air is blown out in a desired direction according to the posture taken by the camera.
  • the predetermined timing at which the horizontal blades 71a to 71d are temporarily stopped is determined according to the detection result of the human detection sensor 62. Therefore, it is possible to ensure the comfort of the person in the air-conditioned room while stirring the air in the air-conditioned room.
  • a plurality of outlets 56 are formed in the casing 51 of the ceiling-mounted indoor unit 4 of the present embodiment, and horizontal blades 71a to 71d are provided in each of the plurality of outlets 56.
  • the conditioned air blown out from each outlet 56 is mixed with a part of the air in the air-conditioned room by the synchronous swing operation of each of the plurality of horizontal blades 71a to 71d, and in the rest period TA, each of the horizontal blades 71a to 71a. Air is blown out in a desired direction according to the attitude taken by 71d.
  • the indoor unit 4 of this embodiment is an indoor unit of a type installed on the ceiling, and can effectively stir the air in the air-conditioned room.
  • the ceiling-mounted indoor unit 4 of the present embodiment when the default prevention mode is set, at a predetermined timing, the horizontal blades 71a to 71d swing in a posture to send conditioned air in a direction where no one is present. Stop temporarily. Therefore, in this ceiling-mounted indoor unit 4, conditioned air does not directly hit a user who is in the air-conditioned room. Therefore, when the synchronized swing operation is temporarily stopped, the conditioned air is sent in the direction in which the user is present, so that discomfort felt by the user can be suppressed.
  • the horizontal blades 71a to 71d temporarily swing in a posture in which conditioned air is sent in the direction where the person is present. Stop. Therefore, even when the operation of stirring the conditioned air is performed, the conditioned air is quickly sent to the user.
  • the above-described synchronous swing operation and temporary stop operation are performed on the horizontal blades 71a to 71d for a predetermined time from the start of operation.
  • the synchronous swing operation and the temporary stop operation of the blades 71a to 71d are finished, and the horizontal blades 71a to 71d are inclined at a predetermined angle.
  • air having a desired temperature can be supplied into the air-conditioned room where the air has been sufficiently agitated, so that discomfort felt by the user due to the draft can be suppressed, and the air-conditioned room can be made comfortable.
  • the length of the pause period TA is a predetermined period
  • the length of the suspension period may be set according to a predetermined condition so as to correspond to the current state of the air-conditioned room.
  • Predetermined conditions include the type of operation, whether the difference between the set temperature and the current temperature in the air-conditioned room is greater than or equal to a predetermined difference, whether or not the floor temperature is less than or equal to the predetermined temperature, and the difference between the presence or absence of the user and the floor temperature Conditions based on the detection results of the various sensors 61 to 63, such as conditions based on the number of persons in the air-conditioned room, conditions based on the amount of human activity, and the like.
  • FIG. 15 shows a case where the lengths of the suspension periods TB1 and TB2 vary depending on the amount of activity of people in the air-conditioned room.
  • the human detection sensor 62 according to the present embodiment is a sensor that can detect not only the presence or absence of a person in the air-conditioned room, but also the amount of activity of the person in the air-conditioned room. In FIG. 15, it is assumed that the human detection sensor 62 detects the presence of a person in the air-conditioned room and detects the amount of activity of the person during the first time while the horizontal blades 71a to 71d perform the synchronous swing operation. .
  • the indoor control unit 67 determines a predetermined timing at which the horizontal blades 71a to 71d pause the swing based on the detection result of the human detection sensor 62.
  • the indoor control unit 67 further determines the detected amount of activity of the person. Suppose that it is determined that the amount of activity is less than or equal to a predetermined amount compared to a predetermined amount. In this case, since the amount of activity is relatively small, the indoor control unit 67 sets the pause period TB1 during which the swinging horizontal blades 71a to 71d are temporarily stopped to a preset default value.
  • the human detection sensor 62 detects that the amount of human activity in the air-conditioned room has increased in the second time thereafter, and this amount of activity is greater than or equal to a predetermined amount.
  • the indoor control unit 67 re-determines the predetermined timing at which the horizontal blades 71a to 71d temporarily stop the swing according to the new detection result, and further, the rest period TB1 of the horizontal blades 71a to 71d until then. Is reset to the suspension period TB2 according to the newly detected activity amount.
  • the suspension period TB2 is set longer than the suspension period TB1.
  • the human detection sensor 62 detects the number of people in the air-conditioned room.
  • the indoor control unit 67 sets the suspension period to a default value.
  • the indoor control unit 67 sets the suspension period to a value longer than the default value.
  • the human detection sensor 62 detects the amount of activity of people in the air-conditioned room and the number of people in the air-conditioned room.
  • the indoor control unit 67 sets the suspension period to a default value.
  • the indoor control unit 67 sets the pause period to a value longer than the default value. To do.
  • the indoor control unit 67 may set the pause period longer. .
  • the indoor control unit 67 sets the suspension period to a default value.
  • the indoor control unit 67 sets the suspension period longer. Conversely, when the floor surface temperature Tf is high and the temperature difference is equal to or smaller than the second temperature difference lower than the first temperature difference, the indoor control unit 67 sets the pause period to be short. As another example, when the floor surface temperature Tf is lower than a predetermined temperature during the cooling operation, the indoor control unit 67 sets the suspension period shorter. Conversely, when the floor surface temperature Tf is higher than the predetermined temperature, the indoor control unit 67 sets the suspension period longer.
  • the suspension periods TB1 and TB2 become longer or shorter depending on a predetermined condition. Thereby, even when the air in the air-conditioned room is being stirred, the air-conditioned air can be accurately sent in a predetermined direction according to the state of the air-conditioned room at that time.
  • the person in the air-conditioned room tends to feel the temperature in the air-conditioned room as “hot”.
  • the suspension period during the swing is set longer. Therefore, the discomfort with respect to the temperature in a person's air-conditioning room
  • the horizontal blades 71a and 71b adjacent to each other may swing while taking the same posture synchronously, and the horizontal blades 71b and 71d adjacent to each other may swing while taking the same posture synchronously.
  • the adjacent horizontal blades 71b and 71c and the horizontal blades 71a and 71d perform different swing operations.
  • the number of horizontal blades performing the swing is not limited to two, and may be three, for example.
  • the upper limit of the number of horizontal blades that perform the swing needs to be N-1 or less, where N is the number of horizontal blades provided in the ceiling-mounted indoor unit. That is, the number M of horizontal blades that swing while taking the same posture in synchronism needs to satisfy the condition “2 ⁇ M ⁇ N ⁇ 1”.
  • the air blown out from the air outlet 56 is mixed with a part of the air in the air-conditioned room, and is surrounded by the horizontal blades 71a to 71d adjacent to each other, and into the air-conditioned room by the horizontal blades 71a to 71d. Sent. Therefore, the air-conditioned air can be sent in a desired direction while stirring the air in the air-conditioned room.
  • the indoor unit according to the present invention can also be adopted in a ceiling-mounted type indoor unit in which a blowout port is provided on each side surface of the casing.
  • the indoor unit according to the present invention may be a wall-mounted type or a floor-mounted type indoor unit, as long as the indoor unit is a type having a plurality of horizontal blades.
  • the form of the air outlet is not limited to this, and a plurality of air outlets may be provided. That is, the indoor unit of the present invention may be of a type in which a plurality of outlets are formed in the casing, and horizontal vanes are provided in each outlet. Even in this case, at least one horizontal blade performs a swing operation different from other horizontal blades. Each horizontal blade temporarily stops the swing operation at a predetermined timing.
  • the conditioned air blown out from each outlet is mixed with a part of the air in the air-conditioned room by the swing operation of each of the plurality of horizontal blades, and each horizontal blade is in a period when the swing is temporarily stopped.
  • the air is blown out in a desired direction according to the posture taken by the camera. Therefore, the air-conditioned air can be sent in a desired direction while stirring the air in the air-conditioned room.
  • a so-called double-flow type air conditioner in which a casing having two outlets is installed on the ceiling in addition to a wall-mounted type or a floor-mounted type.
  • the horizontal blades 71a to 71d are temporarily stopped when the rotation direction always changes.
  • the operation type is the cooling operation
  • the horizontal blades 71a to 71d do not pause when the rotation direction changes from the lower direction to the upper direction, and conversely the rotation direction increases. You may pause only when changing from direction to down.
  • the cold conditioned air blown from the blowout port 56 is blown out in a substantially horizontal direction. Therefore, it is possible to reliably send cold air in the horizontal direction in the air-conditioned room while stirring the air in the air-conditioned room.
  • the temperature in the air-conditioned room can be lowered.
  • the operation type is the heating operation
  • the horizontal blades 71a to 71d do not stop temporarily when the rotation direction changes from the upper direction to the lower direction, and conversely the rotation direction decreases. You may pause when changing from direction to direction.
  • the warm conditioned air blown from the blowout port 56 is blown out in a substantially vertical direction and reaches the vicinity of the floor. Therefore, while stirring the air in the air-conditioned room by the swing operation, warm air can be reliably sent downward in the air-conditioned room, and the user's feet in the air-conditioned room can be warmed.
  • the present invention is widely applicable to an indoor unit of an air conditioner in which a plurality of horizontal blades capable of independently changing the vertical wind direction angle are provided at the outlet.
  • Air conditioning apparatus Ceiling installation type indoor unit 39 Outdoor control part 41 Indoor fan 51 Casing 56 Outlet 56a, 56b, 56c, 56d Side part outlet 56e, 56f, 56g, 56h Corner part outlet 61 Intake air temperature sensor 62 Human detection sensor 63 Floor temperature sensor 71a, 71b, 71c, 71d Horizontal blade 67 Indoor control unit 69 Remote control receiver 99 Remote controller 99a Display unit TA, TB1, TB2 Rest period

Abstract

The disclosed in-room unit of an air conditioning device is capable of ensuring the comfort of individuals within an air-conditioned room while maintaining air circulation therein. The bottom surface of a casing (51) is a decorative panel (52), and air outlets (56) are formed along the peripheral edges of said panel (52). Four horizontal blades (71a - 71d) are provided to the outlets (56) in a rotatable manner, and each blade can independently change the vertical airflow angle. A human detection sensor (62) detects whether or not individuals are present within the air-conditioned room. An in-room control unit (67) controls the rotating action of the horizontal blades (71a - 71d) so that at least one of the four horizontal blades (71a - 71d) has a different swinging movement from the remainder of the blades, and the rotating motion of said horizontal blades is stopped temporarily with a prescribed timing. Additionally, the in-room control unit (67) sets the prescribed timing on the basis of the detection results from the human detection sensor (62).

Description

空気調和装置の室内ユニットIndoor unit of air conditioner
　本発明は、空気調和装置の室内ユニット、特に、それぞれ独立して上下方向の風向角度を変更することが可能な複数の水平羽根が吹き出し口に設けられた室内ユニットに関する。 The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit in which a plurality of horizontal blades capable of independently changing the vertical wind direction angle are provided at the outlet.
　従来より、空気調和装置の室内機としては、特許文献１（特開２００９－１０３４１７号公報）に開示されているように、空調室の天井に設置されるタイプのものがある。特許文献１に係る空気調和装置の室内機には、１つの吸い込み口と、該吸い込み口を囲むようにして位置する４つの吹き出し口とが設けられており、各吹き出し口には回動可能な水平羽根が設けられている。この室内機は、各水平羽根がスイングする、いわゆるデュアルモードを有している。 Conventionally, as an indoor unit of an air conditioner, there is a type installed on the ceiling of an air conditioning room as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2009-103417). The indoor unit of the air conditioner according to Patent Document 1 is provided with one suction port and four outlets positioned so as to surround the suction port, and each outlet has a rotatable horizontal blade. Is provided. This indoor unit has a so-called dual mode in which each horizontal blade swings.
　ところで、上記デュアルモードにおいては、各水平羽根を上方向または下方向に往復回動させることで、空調室内の空気を攪拌させている。しかしながら、上記デュアルモードが行われている間、空調室内の空気が攪拌されるとしても、室内機から吹き出される空調空気を例えば所望の方向へと送ることは困難である。従って、上記デュアルモードでは、空調室内にいる人の快適性を確保し難い。
　そこで、本発明の課題は、空調室内の空気の攪拌性を保ちつつ、空調室内にいる人の快適性を確保することとする。 By the way, in the dual mode, the air in the air-conditioned room is agitated by reciprocatingly rotating each horizontal blade upward or downward. However, even if the air in the air-conditioned room is agitated while the dual mode is performed, it is difficult to send the air-conditioned air blown from the indoor unit in a desired direction, for example. Therefore, in the dual mode, it is difficult to ensure comfort for people in the air-conditioned room.
Accordingly, an object of the present invention is to ensure the comfort of a person in an air-conditioned room while maintaining the agitation of air in the air-conditioned room.
　本発明の第１観点に係る空気調和装置の室内ユニットは、空調室に設けられる空気調和装置の室内ユニットであって、ケーシングと、複数の水平羽根と、人検知部と、制御部とを備える。ケーシングには、吹き出し口が形成されている。複数の水平羽根は、吹き出し口に対し回動可能に設けられており、それぞれ独立して上下方向の風向角度を変更することが可能である。人検知部は、空調室内における人の存在の有無を検知する。制御部は、複数の水平羽根のうち少なくとも１つについて残りの水平羽根と異なるスイング動作をさせると共に、所定タイミングで水平羽根のスイングが一時的に停止するように、水平羽根の回動制御を行う。更に、制御部は、人検知部の検知結果に応じて、所定タイミングを決定する。
　この室内ユニットによると、少なくとも１つの水平羽根が他の水平羽根とは異なるスイング動作をしている間、所定タイミングで、水平羽根のスイングが一時的に停止し、水平羽根は、所定の姿勢で一時的に停止することとなる。そのため、吹き出し口から吹き出される空気は、水平羽根のスイング動作によって空調室内の空気の一部と混ざり、かつスイングが一時的に停止している期間においては、水平羽根が採る姿勢に応じて所望の方向へと空気が吹き出されることになる。特に、人検知部の検知結果に応じて、水平羽根が一時停止する所定タイミングが決定される。従って、空調室内の空気を攪拌しつつ、空調室内にいる人の快適性を確保することができる。 An indoor unit of an air conditioner according to a first aspect of the present invention is an indoor unit of an air conditioner provided in an air conditioning room, and includes a casing, a plurality of horizontal blades, a human detection unit, and a control unit. . A blowout port is formed in the casing. The plurality of horizontal blades are provided so as to be rotatable with respect to the outlet, and can independently change the vertical wind direction angle. The person detection unit detects the presence or absence of a person in the air-conditioned room. The control unit performs a swing operation different from the remaining horizontal blades on at least one of the plurality of horizontal blades, and performs rotation control of the horizontal blades so that the swing of the horizontal blades is temporarily stopped at a predetermined timing. . Further, the control unit determines a predetermined timing according to the detection result of the human detection unit.
According to this indoor unit, while at least one horizontal blade is swinging differently from the other horizontal blades, the swing of the horizontal blade is temporarily stopped at a predetermined timing, and the horizontal blade is in a predetermined posture. It will be temporarily stopped. Therefore, the air blown out from the air outlet is mixed with a part of the air in the air-conditioned room by the swing operation of the horizontal blades, and is desired according to the posture taken by the horizontal blades during the period when the swing is temporarily stopped. Air will be blown out in the direction of. In particular, the predetermined timing at which the horizontal blade is temporarily stopped is determined according to the detection result of the human detection unit. Therefore, it is possible to ensure the comfort of the person in the air-conditioned room while stirring the air in the air-conditioned room.
　本発明の第２観点に係る空気調和装置の室内ユニットは、第１観点に係る空気調和装置の室内ユニットにおいて、ケーシングには、複数の吹き出し口が形成されている。そして、複数の吹き出し口それぞれには、水平羽根が設けられている。
　これにより、各吹き出し口から吹き出される空調空気は、複数の水平羽根それぞれのスイング動作によって空調室内の空気の一部と混ざり、かつスイングが一時的に停止している期間においては、各水平羽根が採る姿勢に応じて所望の方向へと空気が吹き出されることになる。 The indoor unit of the air conditioning apparatus according to the second aspect of the present invention is the indoor unit of the air conditioning apparatus according to the first aspect, wherein a plurality of outlets are formed in the casing. Each of the plurality of outlets is provided with a horizontal blade.
Thus, the conditioned air blown out from each outlet is mixed with a part of the air in the air-conditioned room by the swing operation of each of the plurality of horizontal blades, and each horizontal blade is in a period when the swing is temporarily stopped. The air is blown out in a desired direction according to the posture taken by the camera.
　本発明の第３観点に係る空気調和装置の室内ユニットは、第１観点または第２観点に係る空気調和装置の室内ユニットにおいて、ケーシングは空調室の天井に設置されており、その下面は、平面視において略４角形状を有する。吹き出し口は、ケーシングの下面の周縁部に沿うようにして下面に形成されている。水平羽根は、下面の各辺部に沿って４つ設けられている。
　これにより、天井設置型の室内ユニットにおいても、効果的に空調室内の空気を攪拌させることができる。 The indoor unit of the air conditioner according to the third aspect of the present invention is the indoor unit of the air conditioner according to the first aspect or the second aspect, wherein the casing is installed on the ceiling of the air conditioning room, and the lower surface thereof is a flat surface. It has a substantially quadrangular shape when viewed. The outlet is formed on the lower surface along the peripheral edge of the lower surface of the casing. Four horizontal blades are provided along each side of the lower surface.
Thereby, the air in the air-conditioned room can be effectively stirred even in the ceiling-mounted indoor unit.
　本発明の第４観点に係る空気調和装置の室内ユニットは、第１観点から第３観点のいずれかに係る空気調和装置の室内ユニットにおいて、人検知部が空調室内において人の存在を検知した場合、制御部は、所定タイミング時に水平羽根の風向角度が人の居ない方向となる姿勢で一時的に停止するように、水平羽根の回動を制御する。
　この室内ユニットでは、所定タイミング時における水平羽根の姿勢とは、人の居る方向を避けて空調空気が送られるような姿勢である。そのため、この室内ユニットでは、空調室内に居るユーザへは空調空気が直接当たることがない。従って、一時的にスイング動作が停止する際にユーザの居る方向に空調空気が送られることで、ユーザが感じる不快感を抑えることができる。 When the indoor unit of the air conditioner according to the fourth aspect of the present invention is the indoor unit of the air conditioner according to any of the first to third aspects, the human detection unit detects the presence of a person in the air-conditioned room The control unit controls the rotation of the horizontal blades so that the wind direction angle of the horizontal blades temporarily stops at a predetermined timing in a posture in which no person is present.
In this indoor unit, the posture of the horizontal blades at a predetermined timing is a posture in which conditioned air is sent avoiding the direction in which people are present. Therefore, in this indoor unit, the conditioned air does not directly hit the user in the air conditioned room. Therefore, when the swing operation is temporarily stopped, the conditioned air is sent in the direction in which the user is present, so that discomfort felt by the user can be suppressed.
　本発明の第５観点に係る空気調和装置の室内ユニットは、第１観点から第３観点のいずれかに係る空気調和装置の室内ユニットにおいて、人検知部が空調室内において人の存在を検知した場合、制御部は、所定タイミング時に水平羽根の風向角度が人の居る方向となる姿勢で一時的に停止するように、水平羽根の回動を制御する。
　この室内ユニットは、上述した第４観点に係る室内ユニットとは逆に、人の居る方向に積極的に空調空気が送られるような姿勢で、水平羽根はスイング動作を一時的に停止する。従って、空調空気を攪拌する動作を行っている際においても、ユーザに早く空調空気を送ることができる。 When the indoor unit of the air conditioner according to the fifth aspect of the present invention is the indoor unit of the air conditioner according to any of the first to third aspects, the person detection unit detects the presence of a person in the air-conditioned room The control unit controls the rotation of the horizontal blades so that the wind direction angle of the horizontal blades is temporarily stopped in a posture in which the person is present at a predetermined timing.
Contrary to the indoor unit according to the fourth aspect described above, this indoor unit has a posture such that conditioned air is actively sent in the direction in which the person is present, and the horizontal blade temporarily stops the swing operation. Therefore, even when the operation of stirring the conditioned air is performed, the conditioned air can be sent to the user quickly.
　本発明の第６観点に係る空気調和装置の室内ユニットは、第１観点から第５観点のいずれかに係る空気調和装置の室内ユニットにおいて、制御部は、水平羽根がスイング動作を一時的に停止する期間である休止期間の長さを、所定条件に応じて設定する。
　ここで、所定条件としては、例えば空調室内における人の有無、空調室内の設定温度と室温との差が所定差以上か否か、設定温度と床温度との差が所定差以上か否かが挙げられる。このような所定条件に応じて、休止期間が長くなったり短くなったりする。これにより、空調室内の空気を攪拌している場合においても、その時々の空調室内の状態に応じて空調空気を所定の方向に的確に送ることができる。 An indoor unit of an air conditioner according to a sixth aspect of the present invention is the indoor unit of an air conditioner according to any of the first to fifth aspects, wherein the control unit temporarily stops the swing motion of the horizontal blades. The length of the pause period, which is a period to be set, is set according to a predetermined condition.
Here, as the predetermined condition, for example, whether there is a person in the air-conditioned room, whether the difference between the set temperature in the air-conditioned room and the room temperature is a predetermined difference or more, and whether the difference between the set temperature and the floor temperature is a predetermined difference or more. Can be mentioned. Depending on such a predetermined condition, the suspension period becomes longer or shorter. Thereby, even when the air in the air-conditioned room is being stirred, the air-conditioned air can be accurately sent in a predetermined direction according to the state of the air-conditioned room at that time.
　本発明の第７観点に係る空気調和装置の室内ユニットは、第６観点に係る空気調和装置の室内ユニットにおいて、人検知部は、更に空調室内にいる人の人数及び／または活動量を検知する。そして、制御部は、人検知部が検知した人数及び／または活動量が所定量よりも多い場合、休止期間を長く設定する。
　空調室内に居る人が多い場合や、人が運動等の激しい動作をしている場合には、空調室内に居る人は、空調室内の温度を“暑い”と感じてしまう傾向にある。しかし、この室内ユニットでは、空調室内にいる人の人数及び／または活動量が所定量よりも多い場合、スイング中の休止期間を長く設定する。そのため、人の空調室内の温度に対する不快感をより解消することができる。 The indoor unit of the air conditioner according to the seventh aspect of the present invention is the indoor unit of the air conditioner according to the sixth aspect, wherein the human detection unit further detects the number of people and / or the amount of activity of the person in the air-conditioned room. . Then, when the number of persons and / or the amount of activity detected by the human detection unit is larger than the predetermined amount, the control unit sets the suspension period longer.
When there are many people in the air-conditioned room or when a person is exercising vigorously, such as exercise, the person in the air-conditioned room tends to feel the temperature in the air-conditioned room as “hot”. However, in this indoor unit, when the number of people in the air-conditioned room and / or the amount of activity is larger than a predetermined amount, the pause period during the swing is set longer. Therefore, the discomfort with respect to the temperature in a person's air-conditioning room | chamber can be eliminated more.
　本発明の第８観点に係る空気調和装置の室内ユニットは、第１観点から第７観点のいずれかに係る空気調和装置の室内ユニットにおいて、制御部は、運転開始から所定時間の間、水平羽根のスイングが所定タイミングで一時的に停止するように、各水平羽根の回動動作を制御する。そして、運転開始から所定時間経過後、制御部は、所定タイミングで一時的に停止するスイング動作を行っていた水平羽根を所定角度傾斜させる。
　この室内ユニットでは、運転開始から所定時間が経過すると、水平羽根のスイング動作は終了し、水平羽根は所定角度傾斜するようになる。これにより、空気の攪拌が十分になされた空調室内に所望の温度の空気を供給することができるため、ドラフトによってユーザが感じる不快感を抑えることができ、空調室内を快適にすることができる。 An indoor unit of an air conditioner according to an eighth aspect of the present invention is the indoor unit of an air conditioner according to any one of the first to seventh aspects. The rotation operation of each horizontal blade is controlled so that the swing of the horizontal stop is temporarily stopped at a predetermined timing. Then, after the elapse of a predetermined time from the start of operation, the control unit inclines the horizontal blade that has been performing a swing operation that temporarily stops at a predetermined timing by a predetermined angle.
In this indoor unit, when a predetermined time elapses from the start of operation, the swing operation of the horizontal blade ends and the horizontal blade is inclined at a predetermined angle. As a result, air having a desired temperature can be supplied into the air-conditioned room where the air has been sufficiently agitated, so that discomfort felt by the user due to the draft can be suppressed, and the air-conditioned room can be made comfortable.
　以上の説明に述べたように、本発明によれば、以下の効果が得られる。
　本発明の第１観点にかかる空気調和装置の室内ユニットによると、空調室内の空気を攪拌しつつ、空調室内にいる人の快適性を確保することができる。
　本発明の第２観点にかかる空気調和装置の室内ユニットによると、各吹き出し口から吹き出される空調空気は、複数の水平羽根それぞれのスイング動作によって空調室内の空気の一部と混ざり、かつスイングが一時的に停止している期間においては、各水平羽根が採る姿勢に応じて所望の方向へと空気が吹き出されることになる。
　本発明の第３観点にかかる空気調和装置の室内ユニットによると、天井設置型の室内ユニットにおいても、効果的に空調室内の空気を攪拌させることができる。
　本発明の第４観点にかかる空気調和装置の室内ユニットによると、一時的にスイング動作が停止する際にユーザの居る方向に空調空気が送られることで、ユーザが感じる不快感を抑えることができる。 As described above, according to the present invention, the following effects can be obtained.
According to the indoor unit of the air conditioner according to the first aspect of the present invention, it is possible to ensure the comfort of the person in the air-conditioned room while stirring the air in the air-conditioned room.
According to the indoor unit of the air conditioner according to the second aspect of the present invention, the conditioned air blown out from each outlet is mixed with a part of the air in the conditioned room by the swing operation of each of the plurality of horizontal blades, and the swing is performed. In the period of temporary stop, air is blown out in a desired direction according to the posture taken by each horizontal blade.
According to the indoor unit of the air conditioner according to the third aspect of the present invention, the air in the air-conditioned room can be effectively stirred even in the ceiling-mounted indoor unit.
According to the indoor unit of the air conditioner according to the fourth aspect of the present invention, when the swing operation is temporarily stopped, the conditioned air is sent in the direction in which the user is present, thereby suppressing discomfort felt by the user. .
　本発明の第５観点にかかる空気調和装置の室内ユニットによると、空調空気を攪拌する動作を行っている際においても、ユーザに早く空調空気を送ることができる。
　本発明の第６観点にかかる空気調和装置の室内ユニットによると、空調室内の空気を攪拌している場合においても、その時々の空調室内の状態に応じて空調空気を所定の方向に的確に送ることができる。
　本発明の第７観点にかかる空気調和装置の室内ユニットによると、人の空調室内の温度に対する不快感をより解消することができる。
　本発明の第８観点にかかる空気調和装置の室内ユニットによると、空気の攪拌が十分になされた空調室内に所望の温度の空気を供給することができるため、ドラフトによってユーザが感じる不快感を抑えることができ、空調室内を快適にすることができる。 According to the indoor unit of the air conditioner according to the fifth aspect of the present invention, the conditioned air can be quickly sent to the user even when the operation of stirring the conditioned air is performed.
According to the indoor unit of the air conditioner according to the sixth aspect of the present invention, even when the air in the air-conditioned room is being stirred, the air-conditioned air is accurately sent in a predetermined direction according to the state of the air-conditioned room at that time. be able to.
According to the indoor unit of the air conditioning apparatus according to the seventh aspect of the present invention, it is possible to further eliminate discomfort with respect to the temperature of the person in the air-conditioned room.
According to the indoor unit of the air conditioner according to the eighth aspect of the present invention, air at a desired temperature can be supplied into the air-conditioned room in which air is sufficiently agitated. It is possible to make the air-conditioned room comfortable.
本発明の第１実施形態にかかる室内ユニットが採用された空気調和装置の概略構成図である。It is a schematic block diagram of the air conditioning apparatus by which the indoor unit concerning 1st Embodiment of this invention was employ | adopted. 本発明の第１実施形態にかかる室内ユニットの外観斜視図である。It is an external appearance perspective view of the indoor unit concerning 1st Embodiment of this invention. 本発明の第１実施形態にかかる室内ユニットの概略側面断面図であって、図４のＩ－Ｏ－Ｉ断面図である。FIG. 5 is a schematic side cross-sectional view of the indoor unit according to the first embodiment of the present invention, which is a cross-sectional view taken along the line IOI in FIG. 4. 本発明の第１実施形態にかかる室内ユニットの天板を取り除いた状態を示す概略平面図である。It is a schematic plan view which shows the state which removed the top plate of the indoor unit concerning 1st Embodiment of this invention. 本発明の第１実施形態にかかる室内ユニットの化粧パネルを空調室内から見た平面図である。It is the top view which looked at the decorative panel of the indoor unit concerning 1st Embodiment of this invention from the air conditioned room. 本発明の第１実施形態にかかる室内ユニットの吹出口から吹き出される空調空気の気流、及び、人検知センサの検知範囲を示す模式図である。It is a schematic diagram which shows the detection range of the airflow of the conditioned air which blows off from the blower outlet of the indoor unit concerning 1st Embodiment of this invention, and a human detection sensor. 本発明の第１実施形態にかかる室内ユニットに設けられた人検知センサの構成を示す模式図である。It is a schematic diagram which shows the structure of the human detection sensor provided in the indoor unit concerning 1st Embodiment of this invention. 本発明の第１実施形態にかかる室内ユニットの側面視における人検知センサの検知範囲を示す模式図である。It is a schematic diagram which shows the detection range of the human detection sensor in the side view of the indoor unit concerning 1st Embodiment of this invention. 本発明の第１実施形態にかかる室内制御部と、該制御部に接続された室内ユニット内の各種機器とを模試的に示すブロック図である。It is a block diagram which shows typically the indoor control part concerning 1st Embodiment of this invention, and the various apparatuses in the indoor unit connected to this control part. 本発明の第１実施形態にかかる室内ユニットの水平羽根の風向変更範囲を示す図である。It is a figure which shows the wind direction change range of the horizontal blade | wing of the indoor unit concerning 1st Embodiment of this invention. 本発明の第１実施形態にかかる室内ユニットにおいて、デフォルトモードが設定されている時の各水平羽根の動作を説明するためのタイミングチャートである。It is a timing chart for demonstrating operation | movement of each horizontal blade | wing when the default mode is set in the indoor unit concerning 1st Embodiment of this invention. 本発明の第１実施形態にかかる室内ユニットにおいて、ドラフトモードまたはドラフト防止モードが設定されている時の各水平羽根の動作を説明するためのタイミングチャートである。5 is a timing chart for explaining the operation of each horizontal blade when the draft mode or the draft prevention mode is set in the indoor unit according to the first embodiment of the present invention. 本発明の第１実施形態にかかる室内ユニットが採用された空気調和装置の全体的な動作の流れを示すフローチャートである。It is a flowchart which shows the flow of the whole operation | movement of the air conditioning apparatus by which the indoor unit concerning 1st Embodiment of this invention was employ | adopted. 本発明の第１実施形態にかかる室内ユニットが採用された空気調和装置の全体的な動作の流れを示すフローチャートである。It is a flowchart which shows the flow of the whole operation | movement of the air conditioning apparatus by which the indoor unit concerning 1st Embodiment of this invention was employ | adopted. 本発明の第２実施形態にかかる各水平羽根の動作を説明するためのタイミングチャートである。It is a timing chart for demonstrating operation | movement of each horizontal blade | wing concerning 2nd Embodiment of this invention.
　本発明にかかる室内ユニットの実施形態について、図面に基づいて説明する。
　＜第１実施形態＞
　　＜構成＞
　－全体－
　図１は、本発明の一実施形態にかかる室内ユニットが採用された空気調和装置１の概略構成図である。空気調和装置１は、スプリットタイプの空気調和装置であり、主として、室外ユニット２と、天井設置型室内ユニット４（室内ユニットに相当）と、室外ユニット２と天井設置型室内ユニット４とを接続する液冷媒連絡管５及びガス冷媒連絡管６とを有しており、蒸気圧縮式の冷媒回路１０を構成している。このような空気調和装置１は、冷房運転及び暖房運転を行うことが可能となっている。 An embodiment of an indoor unit according to the present invention will be described based on the drawings.
<First Embodiment>
<Configuration>
-The entire-
FIG. 1 is a schematic configuration diagram of an air conditioner 1 in which an indoor unit according to an embodiment of the present invention is employed. The air conditioner 1 is a split type air conditioner, and mainly connects the outdoor unit 2, the ceiling-mounted indoor unit 4 (corresponding to the indoor unit), and the outdoor unit 2 and the ceiling-mounted indoor unit 4. It has a liquid refrigerant communication pipe 5 and a gas refrigerant communication pipe 6, and constitutes a vapor compression refrigerant circuit 10. Such an air conditioner 1 can perform a cooling operation and a heating operation.
　－室外ユニット－
　室外ユニット２は、室外等に設置されており、主として、圧縮機２１と、四路切換弁２２と、室外熱交換器２３と、膨張弁２４と、液側閉鎖弁２５と、ガス側閉鎖弁２６とを有している。
　圧縮機２１は、低圧のガス冷媒を吸入し、圧縮して高圧のガス冷媒とした後に吐出する機構である。ここでは、圧縮機２１として、ケーシング（図示せず）内に収容されたロータリ式やスクロール式等の容積式の圧縮要素（図示せず）が、同じくケーシング内に収容された圧縮機モータ２１ａによって駆動される密閉式圧縮機が採用されている。圧縮機モータ２１ａは、インバータ装置（図示せず）によって、その回転数（すなわち、運転周波数）を可変でき、これにより、圧縮機２１の容量制御が可能になっている。 -Outdoor unit-
The outdoor unit 2 is installed outdoors, and mainly includes a compressor 21, a four-way switching valve 22, an outdoor heat exchanger 23, an expansion valve 24, a liquid side shut-off valve 25, and a gas side shut-off valve. 26.
The compressor 21 is a mechanism that sucks low-pressure gas refrigerant and discharges it after compressing it into a high-pressure gas refrigerant. Here, as the compressor 21, a volumetric compression element (not shown) such as a rotary type or a scroll type accommodated in a casing (not shown) is used by a compressor motor 21a also accommodated in the casing. A driven hermetic compressor is employed. The compressor motor 21a can change the rotation speed (namely, operation frequency) with an inverter apparatus (not shown), and, thereby, capacity control of the compressor 21 is possible.
　四路切換弁２２は、冷房運転と暖房運転との切換時に、冷媒の流れの方向を切り換えるための弁である。四路切換弁２２は、冷房運転時には、圧縮機２１の吐出側と室外熱交換器２３のガス側とを接続するとともにガス側閉鎖弁２６と圧縮機２１の吸入側とを接続することが可能である（図１における四路切換弁２２の実線を参照）。また、四路切換弁２２は、暖房運転時には、圧縮機２１の吐出側とガス側閉鎖弁２６とを接続するとともに室外熱交換器２３のガス側と圧縮機２１の吸入側とを接続することが可能である（図１における四路切換弁２２の破線を参照）。
　室外熱交換器２３は、冷房運転時には冷媒の放熱器として機能し、暖房運転時には冷媒の蒸発器として機能する熱交換器である。室外熱交換器２３は、その液側が膨張弁２４に接続されており、ガス側が四路切換弁２２に接続されている。 The four-way switching valve 22 is a valve for switching the direction of the refrigerant flow when switching between the cooling operation and the heating operation. The four-way switching valve 22 can connect the discharge side of the compressor 21 and the gas side of the outdoor heat exchanger 23 and can connect the gas side closing valve 26 and the suction side of the compressor 21 during cooling operation. (Refer to the solid line of the four-way switching valve 22 in FIG. 1). In addition, the four-way switching valve 22 connects the discharge side of the compressor 21 and the gas side shut-off valve 26 and connects the gas side of the outdoor heat exchanger 23 and the suction side of the compressor 21 during heating operation. (Refer to the broken line of the four-way switching valve 22 in FIG. 1).
The outdoor heat exchanger 23 is a heat exchanger that functions as a refrigerant radiator during cooling operation and functions as a refrigerant evaporator during heating operation. The outdoor heat exchanger 23 has a liquid side connected to the expansion valve 24 and a gas side connected to the four-way switching valve 22.
　膨張弁２４は、冷房運転時には、室外熱交換器２３において放熱した高圧の液冷媒を室内熱交換器４２（後述）に送る前に減圧する。また、膨張弁２４は、暖房運転時には、室内熱交換器４２において放熱した高圧の液冷媒を室外熱交換器２３に送る前に減圧することが可能な電動膨張弁である。
　液側閉鎖弁２５及びガス側閉鎖弁２６は、外部の機器・配管（具体的には、液冷媒連絡管５及びガス冷媒連絡管６）との接続口に設けられた弁である。液側閉鎖弁２５は、膨張弁２４に接続されている。ガス側閉鎖弁２６は、四路切換弁２２に接続されている。
　また、室外ユニット２には、該ユニット２内に室外空気を吸入して、室外熱交換器２３に室外空気を供給した後に、空気を該ユニット２の外に排出するための室外ファン２７が設けられている。すなわち、室外熱交換器２３は、室外空気を冷却源又は加熱源として冷媒を放熱や蒸発させる熱交換器となっている。ここでは、室外ファン２７として、室外ファンモータ２７ａによって駆動されるプロペラファンが採用されている。室外ファンモータ２７ａは、インバータ装置（図示せず）によって、その回転数（すなわち、運転周波数）を可変でき、これにより、室外ファン２７の風量制御が可能になっている。 During the cooling operation, the expansion valve 24 reduces the pressure of the high-pressure liquid refrigerant radiated in the outdoor heat exchanger 23 before sending it to the indoor heat exchanger 42 (described later). The expansion valve 24 is an electric expansion valve capable of reducing the pressure before sending the high-pressure liquid refrigerant radiated in the indoor heat exchanger 42 to the outdoor heat exchanger 23 during the heating operation.
The liquid side shutoff valve 25 and the gas side shutoff valve 26 are valves provided at connection ports with external devices and pipes (specifically, the liquid refrigerant communication pipe 5 and the gas refrigerant communication pipe 6). The liquid side closing valve 25 is connected to the expansion valve 24. The gas side closing valve 26 is connected to the four-way switching valve 22.
The outdoor unit 2 is provided with an outdoor fan 27 for sucking outdoor air into the unit 2 and supplying the outdoor heat to the outdoor heat exchanger 23 and then discharging the air outside the unit 2. It has been. That is, the outdoor heat exchanger 23 is a heat exchanger that radiates and evaporates the refrigerant using outdoor air as a cooling source or a heating source. Here, as the outdoor fan 27, a propeller fan driven by an outdoor fan motor 27a is employed. The outdoor fan motor 27a can vary the rotation speed (that is, the operating frequency) by an inverter device (not shown), thereby enabling the air volume control of the outdoor fan 27.
　また、室外ユニット２には、図示してはいないが、吸入圧力や吐出圧力を検知するセンサ、室外熱交換器２３の液側における冷媒の温度を検知するセンサ、外気温度を検知するセンサが設けられている。
　更に、室外ユニット２は、室外ユニット２を構成する各機器の動作を制御する室外制御部３９を有している。室外制御部３９は、ＣＰＵ及びメモリからなるマイクロコンピュータで構成され、天井設置型室内ユニット４の室内制御部６７（後述）との間で制御信号等のやりとりを行うことができるようになっている。 Although not shown, the outdoor unit 2 is provided with a sensor for detecting suction pressure and discharge pressure, a sensor for detecting the temperature of the refrigerant on the liquid side of the outdoor heat exchanger 23, and a sensor for detecting the outside air temperature. It has been.
Furthermore, the outdoor unit 2 has an outdoor control unit 39 that controls the operation of each device constituting the outdoor unit 2. The outdoor control unit 39 includes a microcomputer including a CPU and a memory, and can exchange control signals and the like with an indoor control unit 67 (described later) of the ceiling-mounted indoor unit 4. .
　－液冷媒連絡管－
　液冷媒連絡管５は、液側閉鎖弁２５に接続された冷媒管である。液冷媒連絡管５は、冷房運転時に、冷媒の放熱器として機能する室外熱交換器２３の出口から室外ユニット２外に冷媒を導出することが可能な冷媒管である。また、液冷媒連絡管５は、暖房運転時に、室外ユニット２外から冷媒の蒸発器として機能する室外熱交換器２３の入口に冷媒を導入することが可能な冷媒管でもある。 -Liquid refrigerant communication tube-
The liquid refrigerant communication pipe 5 is a refrigerant pipe connected to the liquid side closing valve 25. The liquid refrigerant communication tube 5 is a refrigerant tube capable of leading the refrigerant out of the outdoor unit 2 from the outlet of the outdoor heat exchanger 23 that functions as a refrigerant radiator during cooling operation. The liquid refrigerant communication pipe 5 is also a refrigerant pipe capable of introducing a refrigerant from the outside of the outdoor unit 2 to the inlet of the outdoor heat exchanger 23 that functions as a refrigerant evaporator during heating operation.
　－ガス冷媒連絡管－
　ガス冷媒連絡管６は、ガス側閉鎖弁２６に接続された冷媒管である。ガス冷媒連絡管６は、冷房運転時に、室外ユニット２外から圧縮機２１の吸入に冷媒を導入することが可能な冷媒管である。また、ガス冷媒連絡管６は、暖房運転時に、圧縮機２１の吐出から室外ユニット２外に冷媒を導出することが可能な冷媒管でもある。 -Gas refrigerant communication tube-
The gas refrigerant communication pipe 6 is a refrigerant pipe connected to the gas side closing valve 26. The gas refrigerant communication tube 6 is a refrigerant tube capable of introducing a refrigerant from outside the outdoor unit 2 to the suction of the compressor 21 during the cooling operation. The gas refrigerant communication pipe 6 is also a refrigerant pipe capable of leading the refrigerant out of the outdoor unit 2 from the discharge of the compressor 21 during heating operation.
　－天井設置型室内ユニット－
　天井設置型室内ユニット４は、ここでは、天井埋込型と呼ばれる型式の天井設置型空気調和装置が採用されている。天井設置型室内ユニット４は、図２～図５及び図９に示すように、内部に各種構成機器を収納するケーシング５１と、４つの水平羽根７１ａ，７１ｂ，７１ｃ，７１ｄと、各種センサ６１，６２，６３と、室内制御部６７（制御部に相当）と、リモコン用受信部６９とを有している。 -Ceiling-mounted indoor unit-
Here, the ceiling-mounted indoor unit 4 employs a type of ceiling-mounted air conditioner called a ceiling-embedded type. As shown in FIGS. 2 to 5 and 9, the ceiling-mounted indoor unit 4 includes a casing 51 that houses various components therein, four horizontal blades 71a, 71b, 71c, 71d, various sensors 61, 62, 63, an indoor control section 67 (corresponding to the control section), and a remote control receiving section 69.
　　－ケーシング－
　ケーシング５１は、空調室の天井に設置されたケーシング本体５１ａと、ケーシング本体５１ａの下側に配置されておりケーシング５１の下面に相当する化粧パネル５２とから構成されている。ケーシング本体５１ａは、図３に示すように、空調室の天井Ｕに形成された開口に挿入されて配置されている。そして、化粧パネル５２は、天井Ｕの開口に嵌め込まれるように配置されている。ここで、図２は、天井設置型室内ユニット４の外観斜視図である。図３は、天井設置型室内ユニット４の概略側面断面図であって、図４のＩ－Ｏ－Ｉ断面図である。図４は、天井設置型室内ユニット４の天板５３を取り除いた状態を示す概略平面図である。図５は、天井設置型室内ユニット４の化粧パネル５２を空調室内から見た平面図である。図９は、室内制御部６７と、該制御部６７に接続された天井設置型室内ユニット４内の各種機器とを模試的に示すブロック図である。 -casing-
The casing 51 includes a casing body 51 a installed on the ceiling of the air conditioning room, and a decorative panel 52 that is disposed below the casing body 51 a and corresponds to the lower surface of the casing 51. As shown in FIG. 3, the casing main body 51 a is disposed by being inserted into an opening formed in the ceiling U of the air conditioning room. And the decorative panel 52 is arrange | positioned so that it may fit in opening of the ceiling U. FIG. Here, FIG. 2 is an external perspective view of the ceiling-mounted indoor unit 4. 3 is a schematic side cross-sectional view of the ceiling-mounted indoor unit 4, which is a cross-sectional view taken along the line I-OI of FIG. FIG. 4 is a schematic plan view showing a state where the top plate 53 of the ceiling-mounted indoor unit 4 is removed. FIG. 5 is a plan view of the decorative panel 52 of the ceiling-mounted indoor unit 4 as viewed from the air-conditioned room. FIG. 9 is a block diagram schematically showing the indoor controller 67 and various devices in the ceiling-mounted indoor unit 4 connected to the controller 67.
　ケーシング本体５１ａは、平面視が長辺と短辺とが交互に形成された略８角形状の箱状体であり、その下面が開口している。ケーシング本体５１ａは、長辺と短辺とが交互に連続して形成された略８角形状の天板５３と、天板５３の周縁部から下方に延びる側板５４とを有している。側板５４は、天板５３の長辺に対応する側板５４ａ，５４ｂ，５４ｃ，５４ｄと、天板５３の短辺に対応する側板５４ｅ，５４ｆ，５４ｇ，５４ｈとから構成されている。側板５４ｈは、室内熱交換器４２と冷媒連絡管５，６とを接続するための室内冷媒管４３，４４が貫通する部分を構成している（図４参照）。
　そして、ケーシング本体５１ａの内部には、図３に示すように、主として、室内ファン４１と、室内熱交換器４２とが配置されている。
　室内ファン４１は、空調室内の空気を吸い込み口５５を介してケーシング本体５１ａ内に吸い込むと共に、室内熱交換器４２にて熱交換された後の空気を吹き出し口５６を介してケーシング本体５１ａ内から吹き出す遠心送風機である。この室内ファン４１は、ケーシング本体５１ａの天板５３の中央に設けられた室内ファンモータ４１ａと、室内ファンモータ４１ａに連結されて回転駆動される羽根車４１ｂとを有している。羽根車４１ｂは、ターボ翼を有する羽根車であり、下方から羽根車４１ｂの内部に空気を吸い込み、平面視における羽根車４１ｂの外周側に向かって吹き出すことができる。室内ファンモータ４１ａは、インバータ装置（図示せず）によって、その回転数（すなわち、運転周波数）を可変でき、これにより、室内ファン４１の風量制御が可能になっている。 The casing body 51a is a substantially octagonal box-like body in which long sides and short sides are alternately formed in a plan view, and the lower surface thereof is open. The casing body 51 a includes a substantially octagonal top plate 53 in which long sides and short sides are alternately and continuously formed, and a side plate 54 extending downward from the peripheral edge of the top plate 53. The side plate 54 includes side plates 54 a, 54 b, 54 c and 54 d corresponding to the long sides of the top plate 53, and side plates 54 e, 54 f, 54 g and 54 h corresponding to the short sides of the top plate 53. The side plate 54h constitutes a portion through which the indoor refrigerant pipes 43 and 44 for connecting the indoor heat exchanger 42 and the refrigerant communication pipes 5 and 6 pass (see FIG. 4).
And as shown in FIG. 3, the indoor fan 41 and the indoor heat exchanger 42 are mainly arrange | positioned inside the casing main body 51a.
The indoor fan 41 sucks air in the air-conditioned room into the casing main body 51a through the suction port 55, and air from the casing main body 51a through the blowout port 56 after the heat exchanged in the indoor heat exchanger 42. It is a centrifugal blower that blows out. The indoor fan 41 has an indoor fan motor 41a provided at the center of the top plate 53 of the casing body 51a, and an impeller 41b that is connected to the indoor fan motor 41a and is driven to rotate. The impeller 41b is an impeller having turbo blades. Air can be sucked into the impeller 41b from below and blown out toward the outer peripheral side of the impeller 41b in plan view. The indoor fan motor 41a can vary the rotation speed (that is, the operating frequency) by an inverter device (not shown), thereby enabling the air volume control of the indoor fan 41.
　室内熱交換器４２は、冷房運転時には、冷媒の蒸発器として機能し、暖房運転時には、冷媒の放熱器として機能する熱交換器である。室内熱交換器４２は、室内冷媒管４３，４４を介して冷媒連絡管５，６（図１参照）に接続されており、平面視における室内ファン４１の周囲を囲むように曲げられて配置されたフィンチューブ型熱交換器で構成されている。室内熱交換器４２は、ケーシング本体５１ａ内に吸い込まれる空調室内の空気と冷媒との熱交換を行って、冷房運転時には、空調室内の空気を冷却し、暖房運転時には、空調室内の空気を加熱することができるようになっている。
　尚、室内熱交換器４２の下側かつケーシング本体５１ａの下部には、ドレンパン４５が設置されている。ドレンパン４５は、室内熱交換器４２によって空気中の水分が凝縮されて生じるドレン水を受けるためのものである。また、ドレンパン４５の吸入孔４５ｊには、吸い込み口５５から吸い込まれる空気を室内ファン４１の羽根車４１ｂへ案内するためのベルマウス４１ｃが配置されている。 The indoor heat exchanger 42 is a heat exchanger that functions as a refrigerant evaporator during the cooling operation and functions as a refrigerant radiator during the heating operation. The indoor heat exchanger 42 is connected to the refrigerant communication pipes 5 and 6 (see FIG. 1) via the indoor refrigerant pipes 43 and 44, and is bent and arranged so as to surround the indoor fan 41 in a plan view. It consists of a finned tube heat exchanger. The indoor heat exchanger 42 performs heat exchange between the air in the air-conditioned room sucked into the casing body 51a and the refrigerant, cools the air in the air-conditioned room during the cooling operation, and heats the air in the air-conditioned room during the heating operation. Can be done.
A drain pan 45 is installed below the indoor heat exchanger 42 and below the casing body 51a. The drain pan 45 is for receiving drain water generated by condensation of moisture in the air by the indoor heat exchanger 42. A bell mouth 41 c for guiding the air sucked from the suction port 55 to the impeller 41 b of the indoor fan 41 is disposed in the suction hole 45 j of the drain pan 45.
　化粧パネル５２は、平面視が略４角形状の板状体であり、主として、ケーシング本体５１ａの下端部に固定されたパネル本体５２ａから構成されている。パネル本体５２ａには、吹き出し口５６と吸い込み口５５とが形成されている。吹き出し口５６は、空調室内に空気を吹き出すための開口であって、平面視においてパネル本体５２ａの周縁部に沿うようにして位置している。吸い込み口５５は、空調室内の空気を吸入するための開口であって、平面視においてパネル本体５２ａの略中央、つまりは吹き出し口５６に囲まれるようにして位置している。より具体的には、吸い込み口５５は、略４角形状の開口であって、吸い込み口５５には、吸入グリル５７と、吸い込み口５５から吸入される空気中の塵埃を除去するための吸入フィルタ５８とが設けられている。そして、吹き出し口５６は、略４角環状の開口である。これにより、パネル本体５２ａの４角形の各辺に対応する方向（図５の矢印Ｘ１，Ｘ２，Ｘ３，Ｘ４の方向を参照）だけでなく、パネル本体５２ａの４角形の各角部に対応する方向（図５の矢印Ｙ１，Ｙ２，Ｙ３，Ｙ４の方向を参照）にも、空調空気が吹き出されるようになっている。 The decorative panel 52 is a plate-like body having a substantially quadrangular shape in plan view, and mainly includes a panel body 52a fixed to the lower end portion of the casing body 51a. A blowout port 56 and a suction port 55 are formed in the panel main body 52a. The blowout port 56 is an opening for blowing air into the air-conditioned room, and is positioned along the peripheral edge of the panel main body 52a in plan view. The suction port 55 is an opening for sucking air in the air-conditioned room, and is positioned so as to be surrounded by the substantially center of the panel main body 52a, that is, the blow-out port 56 in a plan view. More specifically, the suction port 55 is a substantially quadrangular opening, and the suction port 55 includes a suction grill 57 and a suction filter for removing dust in the air sucked from the suction port 55. 58 is provided. The blowout port 56 is a substantially quadrangular annular opening. Thereby, not only the direction corresponding to each side of the quadrilateral of the panel body 52a (refer to the directions of arrows X1, X2, X3, and X4 in FIG. 5), but also the respective corners of the square of the panel body 52a. The conditioned air is also blown out in the direction (see the directions of arrows Y1, Y2, Y3, and Y4 in FIG. 5).
　　－水平羽根－
　４つの水平羽根７１ａ～７１ｄは、パネル本体５２ａの４角形の各辺に対応するように位置すると共に、吹き出し口５６に対し回動可能に設けられている。水平羽根７１ａ～７１ｄは、空調室内に吹き出される空調空気の上下方向の風向角度を変更することが可能となっている。より具体的には、水平羽根７１ａ～７１ｄは、吹き出し口５６の４角形の各辺に沿って細長く延びる板状の部材であって、各水平羽根７１ａ～７１ｄの長手方向の両端部は、吹き出し口５６の一部を塞ぐように配置された１対の羽根支持部７２，７３によって、長手方向の軸周りに回動可能になるように化粧パネル５２に支持されている。そして、各水平羽根７１ａ～７１ｄは、羽根駆動モータ７４ａ，７４ｂ，７４ｃ，７４ｄによって駆動されるようになっている。これにより、水平羽根７１ａ～７１ｄは、それぞれ独立して上下方向の風向角度を変更することが可能であり、吹き出し口５６に対し上下方向に往復回動することができるようになっている。尚、羽根駆動モータ７４ａ～７４ｄは、ここでは、羽根支持部７２，７３に設けられており、水平羽根７１ａ～７１ｄに直付けされている。 -Horizontal blade-
The four horizontal blades 71a to 71d are positioned so as to correspond to the respective sides of the quadrangular shape of the panel main body 52a, and are provided so as to be rotatable with respect to the outlet 56. The horizontal blades 71a to 71d can change the vertical air direction angle of the conditioned air blown into the air conditioned room. More specifically, the horizontal blades 71a to 71d are plate-like members extending along the square sides of the outlet 56, and both ends in the longitudinal direction of the horizontal blades 71a to 71d are connected to the outlet. A pair of blade support portions 72 and 73 arranged so as to block a part of the mouth 56 are supported by the decorative panel 52 so as to be rotatable around a longitudinal axis. The horizontal blades 71a to 71d are driven by blade drive motors 74a, 74b, 74c, and 74d. As a result, the horizontal blades 71a to 71d can independently change the airflow direction angle in the vertical direction and can reciprocate in the vertical direction with respect to the outlet 56. Here, the blade drive motors 74a to 74d are provided in the blade support portions 72 and 73, and are directly attached to the horizontal blades 71a to 71d.
　尚、上記羽根支持部７２，７３によって、吹き出し口５６は、パネル本体５２ａの４角形の各辺に対応する辺部吹出口５６ａ，５６ｂ，５６ｃ，５６ｄと、パネル本体５２ａの４角形の各角部に対応する角部吹出口５６ｅ，５６ｆ，５６ｇ，５６ｈとに区分されている。ここで、主として辺部吹出口５６ａから吹き出される空調空気（図５の矢印Ｘ１，Ｙ１，Ｙ２を参照）によって空調が行われるエリアを、“空調対象エリアＡ”とする（図６参照）。また、主として辺部吹出口５６ｂから吹き出される空調空気（図５の矢印Ｘ２，Ｙ２，Ｙ３を参照）によって空調が行われるエリアを、“空調対象エリアＢ”とする。また、主として辺部吹出口５６ｃから吹き出される空調空気（図５の矢印Ｘ３，Ｙ３，Ｙ４を参照）によって空調が行われるエリアを、“空調対象エリアＣ”とする。さらに、主として辺部吹出口５６ｄから吹き出される空調空気（図５の矢印Ｘ４，Ｙ４，Ｙ１を参照）によって空調が行われるエリアを、“空調対象エリアＤ”とする。 By the blade support portions 72 and 73, the blowout port 56 is connected to the side air outlets 56a, 56b, 56c, and 56d corresponding to the square sides of the panel main body 52a and the square corners of the panel main body 52a. Are divided into corner outlets 56e, 56f, 56g, and 56h corresponding to the parts. Here, an area in which air conditioning is performed mainly by the conditioned air blown from the side air outlet 56a (see arrows X1, Y1, and Y2 in FIG. 5) is referred to as “air conditioning target area A” (see FIG. 6). Further, an area where air conditioning is performed mainly by conditioned air blown from the side air outlet 56b (see arrows X2, Y2, and Y3 in FIG. 5) is referred to as an “air conditioning target area B”. In addition, an area where air conditioning is performed mainly by conditioned air blown from the side air outlet 56c (see arrows X3, Y3, and Y4 in FIG. 5) is referred to as an “air conditioning target area C”. Furthermore, an area where air conditioning is performed mainly by conditioned air blown out from the side air outlet 56d (see arrows X4, Y4, and Y1 in FIG. 5) is referred to as an “air conditioning target area D”.
　　－各種センサ－
　本実施形態に係る天井設置型室内ユニット４に設けられているセンサとしては、吸込空気温度センサ６１、人検知センサ６２（人検知部に相当）、床温度センサ６３が挙げられる。
　吸込空気温度センサ６１は、吸い込み口５５を通じてケーシング本体５１ａ内に吸い込まれる空調室内の空気の温度である吸込空気温度Ｔｒを検出する温度センサである。吸込空気温度センサ６１は、ここでは、図３に示すように、吸い込み口５５に設けられている。
　人検知センサ６２は、空調室内における人の分布（ここでは、図６に係る空調対象エリアＡ～Ｄにおける人の存在の有無を含む）を検知する赤外線センサである。人検知センサ６２は、化粧パネル５２の下部の配置可能な位置、ここでは、化粧パネル５２の角部に１つ配置されている（図２，５参照）。より具体的には、人検知センサ６２は、角部吹出口５６ｆの外周側の位置に化粧パネル５２の表面から下方に突出するように設けられており、化粧パネル５２の平面視における形状は略円形である。人検知センサ６２は、物体から放射される赤外線放射エネルギーの変動によって、空調室内における人の有無を検知するタイプのセンサであって、図７に示すように、赤外線受光素子（図示せず）に赤外線を受光させるための開口部６２ａが形成されている。ここで、開口部６２ａは、赤外線受光素子に赤外線を受光させることが可能な透過性部材によって覆われていてもよい。そして、開口部６２ａは、化粧パネル５２の平面視において、３６０度回転することが可能であり、各空調対象エリアＡ～Ｄにおける人の有無を検知することができるようになっている。また、人検知センサ６２の平面視における検知範囲は、図６に示すように、いずれの空調対象エリアＡ～Ｄにおける人の有無を検知する場合も、各検知角度α，β，γ，δが約９０度になるような範囲である。また、人検知センサ６２の側面視における検知範囲は、図８に示すように、いずれの空調対象エリアＡ～Ｄにおける人の有無を検知する場合も、各検知角度εが約１３５度になるような範囲である。 -Various sensors-
Examples of sensors provided in the ceiling-mounted indoor unit 4 according to the present embodiment include an intake air temperature sensor 61, a human detection sensor 62 (corresponding to a human detection unit), and a floor temperature sensor 63.
The intake air temperature sensor 61 is a temperature sensor that detects an intake air temperature Tr that is the temperature of the air in the air-conditioned room that is sucked into the casing main body 51 a through the suction port 55. Here, the suction air temperature sensor 61 is provided in the suction port 55 as shown in FIG.
The human detection sensor 62 is an infrared sensor that detects the distribution of people in the air-conditioned room (including the presence or absence of people in the air-conditioning target areas A to D according to FIG. 6). One human detection sensor 62 is disposed at a position where the lower part of the decorative panel 52 can be arranged, here, at a corner of the decorative panel 52 (see FIGS. 2 and 5). More specifically, the human detection sensor 62 is provided at a position on the outer peripheral side of the corner outlet 56f so as to protrude downward from the surface of the decorative panel 52, and the shape of the decorative panel 52 in a plan view is substantially the same. It is circular. The human detection sensor 62 is a type of sensor that detects the presence or absence of a person in the air-conditioned room based on a change in infrared radiation energy radiated from an object. As shown in FIG. 7, the human detection sensor 62 is connected to an infrared light receiving element (not shown). An opening 62a for receiving infrared rays is formed. Here, the opening 62a may be covered with a transparent member capable of causing the infrared light receiving element to receive infrared light. The opening 62a can be rotated 360 degrees in a plan view of the decorative panel 52, and can detect the presence or absence of a person in each of the air-conditioning target areas A to D. Further, as shown in FIG. 6, the detection range in the plan view of the human detection sensor 62 is such that the detection angles α, β, γ, and δ are the same when detecting the presence or absence of a person in any air conditioning target area A to D. The range is about 90 degrees. Further, as shown in FIG. 8, the detection range in the side view of the human detection sensor 62 is such that each detection angle ε is about 135 degrees when detecting the presence or absence of a person in any of the air conditioning target areas A to D. It is a range.
　尚、人検知センサ６２は、上記の構造に限定されるものではなく、例えば、開口部６２ａが回転する代わりに、赤外線受光素子が回転するものであってもよいし、各空調対象エリアＡ～Ｄの方向を向く４つの赤外線受光素子を有するものであってもよい。
　床温度センサ６３は、空調室内における床面の温度Ｔｆを検知する赤外線センサである。床温度センサ６３は、化粧パネル５２の下部の配置可能な位置、ここでは、化粧パネル５２の角部に配置されている。より具体的には、床温度センサ６３は、人検知センサ６２と同じく、角部吹出口５６ｆの外周側の位置に化粧パネル５２の表面から下方を向くように設けられている。床温度センサ６３は、物体から放射される赤外線放射エネルギーによって、空調室内の床面の温度Ｔｆを検知する。 The human detection sensor 62 is not limited to the above-described structure. For example, instead of the opening 62a rotating, the infrared light receiving element may rotate, or each of the air conditioning target areas A to It may have four infrared light receiving elements facing the direction of D.
The floor temperature sensor 63 is an infrared sensor that detects the temperature Tf of the floor surface in the air-conditioned room. The floor temperature sensor 63 is disposed at a position where the floor panel 63 can be disposed below the decorative panel 52, in this case, at a corner of the decorative panel 52. More specifically, like the human detection sensor 62, the floor temperature sensor 63 is provided at the position on the outer peripheral side of the corner outlet 56f so as to face downward from the surface of the decorative panel 52. The floor temperature sensor 63 detects the temperature Tf of the floor surface in the air-conditioned room based on the infrared radiation energy radiated from the object.
　　－室内制御部－
　室内制御部６７は、ＣＰＵ及びメモリからなるマイクロコンピュータであって、天井設置型室内ユニット４を構成する各機器の動作を制御する。具体的には、図９に示すように、室内制御部６７は、該室内ユニット４における各種センサ６１～６３、室内ファンモータ４１ａ、各羽根駆動モータ７４ａ～７４ｄ、室外機用通信部６８、及びリモコン用受信部６９と電気的に接続されている。尚、室外機用通信部６８は、室外ユニット２の室外制御部３９との間で制御信号等のやりとりを行うためのものであって、室外制御部３９と配線９を介して電気的に接続されている（図１参照）。 -Indoor control unit-
The indoor control unit 67 is a microcomputer composed of a CPU and a memory, and controls the operation of each device constituting the ceiling-mounted indoor unit 4. Specifically, as shown in FIG. 9, the indoor control unit 67 includes various sensors 61 to 63 in the indoor unit 4, an indoor fan motor 41a, blade drive motors 74a to 74d, an outdoor unit communication unit 68, and The remote control receiver 69 is electrically connected. The outdoor unit communication unit 68 is for exchanging control signals and the like with the outdoor control unit 39 of the outdoor unit 2 and is electrically connected to the outdoor control unit 39 via the wiring 9. (See FIG. 1).
　このような室内制御部６７は、各種センサ６１～６３の検知結果や空調室内に居るユーザによってリモートコントローラ９９（図１を参照）を介して行われた各種指示、室外制御部３９から送られてきた制御信号に基づいて、室内ファンモータ４１ａの駆動制御を行ったり、各羽根駆動モータ７４ａ～７４ｄの駆動制御を行ったりする。例えば、ユーザによりリモートコンローラ９９を介して暖房運転や冷房運転の開始指示がなされた場合には、室内制御部６７は、各モータ４１ａ，７４ａ～７４ｄの駆動を開始させる。尚、この場合、室外機用通信部６８は、室外ユニット２の駆動を開始させる旨及びどのような運転の開始指示がなされたかを示す制御信号を、室外制御部３９に送る。また、室内制御部６７は、リモートコントローラ９９を介して運転の停止指示がなされた場合には、各モータ４１ａ，７４ａ～７４ｄの駆動を停止させる。尚、この場合、室外機用通信部６８は、室外ユニット２の駆動を停止させる旨の制御信号を、室外制御部３９に送る。 Such an indoor control unit 67 is sent from the detection results of the various sensors 61 to 63, various instructions given by the user in the air-conditioned room via the remote controller 99 (see FIG. 1), and the outdoor control unit 39. Based on the control signal, drive control of the indoor fan motor 41a is performed, and drive control of each of the blade drive motors 74a to 74d is performed. For example, when the user gives an instruction to start heating operation or cooling operation via the remote controller 99, the indoor control unit 67 starts driving the motors 41a, 74a to 74d. In this case, the outdoor unit communication unit 68 sends to the outdoor control unit 39 a control signal indicating that the driving of the outdoor unit 2 is started and what kind of operation start instruction is given. In addition, when an operation stop instruction is given via the remote controller 99, the indoor control unit 67 stops driving the motors 41a, 74a to 74d. In this case, the outdoor unit communication unit 68 sends a control signal for stopping the driving of the outdoor unit 2 to the outdoor control unit 39.
　　　－水平羽根の風向角度の制御－
　ここで、室内制御部６７による各水平羽根７１ａ～７１ｄの風向角度の制御について説明する。空気調和装置１が暖房運転や冷房運転を行っている間、室内制御部６７は、リモートコントローラ９９からの要求や各種センサ６１～６３の検出値等に基づいて、各水平羽根７１ａ～７１ｄを固定状態又はスイング状態に設定することができる。固定状態とは、各羽根駆動モータ７４ａ～７４ｄの駆動により、各水平羽根７１ａ～７１ｄの風向角度が所望の風向角度で固定された状態を言う。尚、各水平羽根７１ａ～７１ｄの風向角度は、図１０に示すように、空調空気が約水平方向に吹き出す風向角度である風向Ｐ０（水平吹き風向）と空調空気が最も下方向に吹き出す風向角度である風向Ｐ４との間で、複数段階に変更可能である。ここでは、各水平羽根７１ａ～７１ｄの風向角度は、風向Ｐ０、風向Ｐ０よりも下向きの風向Ｐ１、風向Ｐ１よりも下向きの風向Ｐ２、風向Ｐ２よりも下向きの風向Ｐ３、及び、最も下向きの風向Ｐ４の５段階に変更可能となっている。スイング状態とは、各羽根駆動モータ７４ａ～７４ｄを駆動して、各水平羽根７１ａ～７１ｄの風向角度を風向変更範囲内（ここでは、風向Ｐ０と風向Ｐ４との間）で繰り返し上下に変更することで、各水平羽根７１ａ～７１ｄを往復回動させる状態を言う。室内制御部６７は、上述した風向角度の制御を、個々の水平羽根７１ａ～７１ｄに対し行うことが可能となっている。
　尚、各水平羽根７１ａ～７１ｄは、天井設置型室内ユニット４が運転をしていない状態時においては、吹き出し口５６（具体的には、辺部吹出口５６ａ～５６ｄ）を閉じた状態を採る。以下では、説明の便宜上、水平羽根７１ａ～７１ｄが閉じた状態である場合の風向角度を、“風向Ｐ０ｃ”として表すこととする（図１１参照）。そして、各水平羽根７１ａ～７１ｄは、運転している状態時においては、上述した固定状態又はスイング状態において、風向Ｐ０～Ｐ４のいずれかを採ることが可能となる。 -Control of wind direction angle of horizontal blade-
Here, the control of the wind direction angle of each of the horizontal blades 71a to 71d by the indoor control unit 67 will be described. While the air conditioner 1 performs the heating operation or the cooling operation, the indoor control unit 67 fixes the horizontal blades 71a to 71d based on the request from the remote controller 99, the detection values of the various sensors 61 to 63, and the like. The state or the swing state can be set. The fixed state refers to a state in which the wind direction angles of the horizontal blades 71a to 71d are fixed at a desired wind direction angle by driving the blade driving motors 74a to 74d. As shown in FIG. 10, the wind direction angle of each of the horizontal blades 71a to 71d is the wind direction angle P0 (horizontal blown wind direction) that is the wind direction angle at which the conditioned air blows out in the horizontal direction and the wind direction angle at which the conditioned air blows out to the lowest direction. Can be changed in a plurality of stages. Here, the wind direction angles of the horizontal blades 71a to 71d are the wind direction P0, the wind direction P1 that is lower than the wind direction P0, the wind direction P2 that is lower than the wind direction P1, the wind direction P3 that is lower than the wind direction P2, and the most downward wind direction. It can be changed to 5 levels of P4. In the swing state, the blade drive motors 74a to 74d are driven, and the wind direction angles of the horizontal blades 71a to 71d are repeatedly changed up and down within the wind direction change range (here, between the wind direction P0 and the wind direction P4). This means a state in which the horizontal blades 71a to 71d are reciprocally rotated. The indoor control unit 67 can control the wind direction angle described above for each of the horizontal blades 71a to 71d.
Each of the horizontal blades 71a to 71d takes a state in which the air outlet 56 (specifically, the side air outlets 56a to 56d) is closed when the ceiling-mounted indoor unit 4 is not in operation. . Hereinafter, for convenience of explanation, the wind direction angle when the horizontal blades 71a to 71d are in the closed state is represented as “wind direction P0c” (see FIG. 11). Each of the horizontal blades 71a to 71d can take one of the wind directions P0 to P4 in the fixed state or the swing state as described above.
　　　－休止期間を有するスイング制御－
　しかしながら、天井設置型室内ユニット４が運転を開始する際には、空調室内の温度分布に偏りが生じている。そのため、天井設置型室内ユニット４の運転開始時には、実際に所望する風向角度へと空調空気を送ることで暖房運転や冷房運転を行う前に、効果的に空調室内の空気の攪拌を行うと良い。
　そこで、室内制御部６７は、天井設置型室内ユニット４の運転開始指示がなされてから所定時間の間、４つの水平羽根７１ａ～７１ｄのうち少なくとも１つについて、残りの水平羽根７１ａ～７１と異なるスイング動作をさせるように、水平羽根７１ａ～７１ｄの回動制御を行う。例えば、図１１，１２に示すように、室内制御部６７は、隣り合う水平羽根７１ａ～７１ｄ同士（具体的には、水平羽根７１ａと７１ｂ、７１ｂと７１ｃ、７１ｃと７１ｄ）は互いに逆方向にスイングさせるが、互いに対向して位置する水平羽根７１ａ～７１ｄ（具体的には、水平羽根７１ａと７１ｃ、７１ｂと７１ｄ）については、同期して同じ方向に同じ姿勢を採りつつスイングさせる。そして、室内制御部６７は、水平羽根７１ａ，７１ｃのスイング動作と水平羽根７１ｂ，７１ｄのスイング動作とが同期するように、各水平羽根７１ａ～７１ｄの回動制御を行う（以下、この水平羽根７１ａ～７１ｄの動作を、同期スイング動作と言う）。上記同期スイング動作において、室内制御部６７は、所定タイミングで水平羽根７１ａ～７１ｄのスイングが一時的に停止するように、水平羽根７１ａ～７１ｄの回動制御を行う。更に、室内制御部６７は、人検知センサ６２の検知結果に応じて、上記所定タイミングを決定する。 -Swing control with pause period-
However, when the ceiling-mounted indoor unit 4 starts operation, the temperature distribution in the air-conditioned room is biased. Therefore, at the start of the operation of the ceiling-mounted indoor unit 4, the air in the air-conditioned room is effectively stirred before the heating operation or the cooling operation is performed by sending the air-conditioned air to the actually desired wind direction angle. .
Therefore, the indoor control unit 67 differs from the remaining horizontal blades 71a to 71 for at least one of the four horizontal blades 71a to 71d for a predetermined time after the operation start instruction of the ceiling-mounted indoor unit 4 is made. Rotation control of the horizontal blades 71a to 71d is performed so as to perform a swing operation. For example, as shown in FIGS. 11 and 12, the indoor control unit 67 allows the horizontal blades 71a to 71d adjacent to each other (specifically, the horizontal blades 71a and 71b, 71b and 71c, and 71c and 71d) to be opposite to each other. The horizontal blades 71a to 71d (specifically, the horizontal blades 71a and 71c and 71b and 71d) positioned opposite to each other are swung while taking the same posture in the same direction. Then, the indoor control unit 67 performs rotation control of the horizontal blades 71a to 71d so that the swing operation of the horizontal blades 71a and 71c and the swing operation of the horizontal blades 71b and 71d are synchronized (hereinafter, the horizontal blades 71a and 71c). The operations 71a to 71d are called synchronous swing operations). In the synchronous swing operation, the indoor control unit 67 performs rotation control of the horizontal blades 71a to 71d so that the swing of the horizontal blades 71a to 71d is temporarily stopped at a predetermined timing. Furthermore, the indoor control unit 67 determines the predetermined timing according to the detection result of the human detection sensor 62.
　以下、図１１，１２を用いて、上述した室内制御部６７の制御により水平羽根７１ａ～７１ｄが採る動作について、具体的に説明する。図１１，１２では、化粧パネル５２の辺部吹出口５６ａに対応する水平羽根７１ａと辺部吹出口５６ｃに対応する水平羽根７１ｃとが同じタイミングでかつ同じ姿勢を採りながらスイング動作を行っており、辺部吹出口５６ｂに対応する水平羽根７１ｂと辺部吹出口５６ｄに対応する水平羽根７１ｄとが同じタイミングでかつ同じ姿勢を採りながらスイング動作を行っている場合を示している。
　図１１では、運転開始時、水平羽根７１ａ，７１ｃが、水平羽根７１ｂ，７１ｄよりも先に回動を開始している。先ずは、水平羽根７１ａ，７１ｃは、共に吹き出し口５６を閉じた状態（風向Ｐ０ｃ）から風向Ｐ４へと回動する方向、つまりは下方向に、同じ回動速度で回動する。従って、水平羽根７１ａ，７１ｃの風向角度は、同じタイミングで風向Ｐ０から風向Ｐ１、風向Ｐ２、風向Ｐ３に至り、やがてほぼ同時に風向Ｐ４に達する。風向Ｐ４に達した水平羽根７１ａ，７１ｃは、風向Ｐ４の姿勢を休止期間ＴＡの間維持し、休止期間ＴＡの経過後に、水平羽根７１ａ，７１ｃは回動方向を下方向から上方向へと変化させ、吹き出し口５６を閉じる方向に回動する。水平羽根７１ａ，７１ｃが回動方向を下方向から上方向へと変化させるタイミングで、他の隣接する水平羽根７１ｂ，７１ｄが、共に吹き出し口５６を閉じた状態（風向Ｐ０ｃ）から風向Ｐ４へと回動（つまり、下方向へと回動）を開始する。そして、水平羽根７１ａ，７１ｃは、上方向へと同じ回動速度で回動する一方で、水平羽根７１ｂ，７１ｄは下方向へと同じ回動速度で回動する。この時、水平羽根７１ｂ，７１ｄの回動速度は、水平羽根７１ａ，７１ｃの回動速度と等しい。従って、水平羽根７１ａ，７１ｃの風向角度が風向Ｐ０に到達するのとほぼ同時に、水平羽根７１ｂ，７１ｄの風向角度は風向Ｐ４に到達し、到達してから休止期間ＴＡの間、水平羽根７１ａ，７１ｃは風向角度が風向Ｐ０の姿勢を保ち、水平羽根７１ｂ，７１ｄは風向角度が風向Ｐ４の姿勢を保つ。 Hereinafter, the operations taken by the horizontal blades 71a to 71d under the control of the indoor control unit 67 described above will be specifically described with reference to FIGS. 11 and 12, the horizontal blades 71a corresponding to the side air outlets 56a of the decorative panel 52 and the horizontal blades 71c corresponding to the side air outlets 56c are swinging at the same timing and taking the same posture. The horizontal blades 71b corresponding to the side air outlets 56b and the horizontal blades 71d corresponding to the side air outlets 56d perform a swing operation at the same timing and in the same posture.
In FIG. 11, at the start of operation, the horizontal blades 71a and 71c start to rotate before the horizontal blades 71b and 71d. First, the horizontal blades 71a and 71c are both rotated at the same rotation speed in the direction in which the air outlet 56 is closed (wind direction P0c) to the wind direction P4, that is, in the downward direction. Accordingly, the wind direction angles of the horizontal blades 71a and 71c reach the wind direction P4 from the wind direction P0 to the wind direction P1, the wind direction P2, and the wind direction P3 at the same timing, and eventually reach the wind direction P4 almost simultaneously. The horizontal blades 71a and 71c that have reached the wind direction P4 maintain the posture of the wind direction P4 during the pause period TA, and after the pause period TA has elapsed, the horizontal blades 71a and 71c change the rotation direction from downward to upward. And rotate in a direction to close the outlet 56. At a timing when the horizontal blades 71a and 71c change the rotation direction from the downward direction to the upward direction, the other adjacent horizontal blades 71b and 71d both move from the state in which the outlet 56 is closed (wind direction P0c) to the wind direction P4. Rotation (that is, rotation downward) is started. The horizontal blades 71a and 71c rotate upward at the same rotational speed, while the horizontal blades 71b and 71d rotate downward at the same rotational speed. At this time, the rotational speed of the horizontal blades 71b and 71d is equal to the rotational speed of the horizontal blades 71a and 71c. Accordingly, almost at the same time that the wind direction angle of the horizontal blades 71a and 71c reaches the wind direction P0, the wind direction angle of the horizontal blades 71b and 71d reaches the wind direction P4, and during the rest period TA after reaching the wind direction P4, 71c maintains the attitude of the wind direction angle P0, and the horizontal blades 71b and 71d maintain the attitude of the wind direction angle P4.
　即ち、図１１では、水平羽根７１ａ～７１ｄの回動方向が変化する時に、スイング動作が一時的に停止している。図１１における水平羽根７１ａ～７１ｄの動作は、人検知センサ６２による検知結果に関係なく行われる「デフォルトモード」にて行われる動作である。更に、図１１における水平羽根７１ａ～７１ｄの動作は、人検知センサ６２の検知結果に応じて水平羽根７１ａ～７１ｄの同期スイング動作が一時停止する「ドラフト防止モード」及び「ドラフトモード」において、人検知センサ６２が人を検知していない間の動作でもある。
　ここで、「ドラフト防止モード」とは、水平羽根７１ａ～７１ｄの同期スイング動作の一時停止時には、空調室内に居る人に空調空気を当てないようにすることで、空調室内にいる人にドラフト感を与えないようにするモードである。「ドラフトモード」とは、水平羽根７１ａ～７１ｄ同期スイング動作の一時停止時には、あえて空調室内に居る人に空調空気を当てるモードである。 That is, in FIG. 11, the swing operation is temporarily stopped when the rotation direction of the horizontal blades 71a to 71d changes. The operations of the horizontal blades 71a to 71d in FIG. 11 are operations performed in the “default mode” performed regardless of the detection result by the human detection sensor 62. Further, the operation of the horizontal blades 71a to 71d in FIG. 11 is performed in the “draft prevention mode” and “draft mode” in which the synchronous swing operation of the horizontal blades 71a to 71d is temporarily stopped according to the detection result of the human detection sensor 62. It is also an operation while the detection sensor 62 is not detecting a person.
Here, the “draft prevention mode” means that the person in the air conditioning room does not feel the draft when the synchronous swing operation of the horizontal blades 71a to 71d is temporarily stopped so as not to apply the air conditioned air to the person in the air conditioning room. This is a mode that does not give The “draft mode” is a mode in which conditioned air is applied to a person in the air conditioned room when the horizontal blades 71a to 71d synchronous swing operation is temporarily stopped.
　上述した動作が繰り返されることにより、水平羽根７１ａ，７１ｃが共に下方向へと回動している場合には、水平羽根７１ｂ，７１ｄは共に上方向へと回動し、水平羽根７１ａ，７１ｃの風向角度が同時に風向Ｐ４となったタイミングで、水平羽根７１ｂ，７１ｄの風向角度は、同時に風向Ｐ０となる。逆に、水平羽根７１ａ，７１ｃが共に上方向へと回動している場合には、水平羽根７１ｂ，７１ｄは共に下方向へと回動し、水平羽根７１ａ，７１ｃの風向角度が同時に風向Ｐ０となったタイミングで、水平羽根７１ｂ，７１ｄの風向角度は、同時に風向Ｐ４となる。そして、各水平羽根７１ａ～７１ｄの回動方向が変化する際、水平羽根７１ａ，７１ｃは、風向角度が風向Ｐ０またはＰ４である姿勢で休止期間ＴＡの間固定され、一方で水平羽根７１ｂ，７１ｃは、風向角度が風向Ｐ４またはＰ０である姿勢で休止期間ＴＡの間固定される。これにより、辺部吹出口５６ａ，５６ｃから吹き出される空気は、空調室内の空気の一部と混ざり、休止期間ＴＡの間は水平羽根７１ａ，７１ｃの採る姿勢によって風向Ｐ０またはＰ４の方向に吹き出される。辺部吹出口５６ｂ，５６ｄから吹き出される空気は、空調室内の空気の一部と混ざり、休止期間ＴＡの間は水平羽根７１ｂ，７１ｄの採る姿勢によって風向Ｐ４またはＰ０の方向に吹き出される。つまり、休止期間ＴＡにおける水平羽根７１ａ～７１ｄの風向が“Ｐ０”であれば、空調空気は確実に遠方まで送られ、風向が“Ｐ４”であれば、空調空気は空調室内の床にめがけて送られることとなる。従って、個々の水平羽根７１ａ～７１ｄについて休止期間ＴＡを設けることなくスイングさせる場合に比して、空調室内の空気を攪拌しつつ空調空気をより所望の方向へ送ることができる。 By repeating the above-described operation, when the horizontal blades 71a and 71c are both rotated downward, the horizontal blades 71b and 71d are both rotated upward, and the horizontal blades 71a and 71c At the timing when the wind direction angle becomes the wind direction P4 at the same time, the wind direction angles of the horizontal blades 71b and 71d become the wind direction P0 at the same time. Conversely, when the horizontal blades 71a and 71c are both rotated upward, the horizontal blades 71b and 71d are both rotated downward, and the wind direction angle of the horizontal blades 71a and 71c is simultaneously the wind direction P0. At this timing, the wind direction angles of the horizontal blades 71b and 71d become the wind direction P4 at the same time. When the rotational direction of each horizontal blade 71a to 71d changes, the horizontal blades 71a and 71c are fixed during the rest period TA in a posture where the wind direction angle is the wind direction P0 or P4, while the horizontal blades 71b and 71c Is fixed during the rest period TA in a posture in which the wind direction angle is the wind direction P4 or P0. Thereby, the air blown out from the side air outlets 56a and 56c is mixed with a part of the air in the air-conditioning room, and blown out in the direction of the wind direction P0 or P4 depending on the posture taken by the horizontal blades 71a and 71c during the rest period TA. Is done. The air blown out from the side air outlets 56b and 56d is mixed with a part of the air in the air conditioning room, and is blown out in the direction of the wind direction P4 or P0 depending on the posture taken by the horizontal blades 71b and 71d during the rest period TA. That is, if the wind direction of the horizontal blades 71a to 71d in the pause period TA is “P0”, the conditioned air is surely sent far away, and if the wind direction is “P4”, the conditioned air is directed to the floor in the conditioned room. Will be sent. Therefore, compared with the case where the individual horizontal blades 71a to 71d are swung without providing the pause period TA, the conditioned air can be sent in a desired direction while stirring the air in the conditioned room.
　図１２は、「ドラフトモード」または「ドラフト防止モード」が設定されており、かつ人検知センサ６２が人を検知した場合の水平羽根７１ａ～７１ｄの動作を表している。従って、図１２では、図１１とは水平羽根７１ａ～７１ｄが同期スイング動作を一時停止するタイミングが異なっている。図１２では、人検知センサ６２による検知結果が空調室内に人が居ないことを示す内容である場合には、水平羽根７１ａ～７１ｄが同期スイング動作を一時停止する所定タイミングは、水平羽根７１ａ～７１ｄの回動方向が変化する時となっている。しかし、人検知センサ６２による検知結果が空調室内に人が居ることを示す内容である場合には、水平羽根７１ａ～７１ｄが同期スイング動作を一時停止する所定タイミングは、設定されているモードによって異なる。ドラフト防止モードが設定されている場合の所定タイミングは、水平羽根７１ａ～１７ｄが人の居ない方向に空調空気を送る角度に至った時となっている。即ち、ドラフト防止モードでは、所定タイミング時、水平羽根７１ａ～７１ｄは、風向角度が人の居ない方向となる姿勢で一時的に停止する。また、ドラフトモードが設定されている場合の所定タイミングは、水平羽根７１ａ～１７ｄが人の居る方向に空調空気を送る角度に至った時となっている。即ち、ドラフトモードでは、所定タイミング時、水平羽根７１ａ～７１ｄは、風向角度が人の居る方向となる姿勢で一時的に停止する。まとめると、図１２では、人検知センサ６２の検知結果、更には設定されているモードに応じて、水平羽根７１ａ～７１ｄが一時停止する所定タイミングが変化するのである。 FIG. 12 shows the operation of the horizontal blades 71a to 71d when the “draft mode” or the “draft prevention mode” is set and the human detection sensor 62 detects a person. Therefore, the timing at which the horizontal blades 71a to 71d temporarily stop the synchronous swing operation in FIG. 12 is different from that in FIG. In FIG. 12, when the detection result by the human detection sensor 62 indicates that there is no person in the air-conditioned room, the predetermined timing at which the horizontal blades 71a to 71d temporarily stop the synchronous swing operation is the horizontal blades 71a to 71a. It is when the rotation direction of 71d changes. However, when the detection result by the human detection sensor 62 indicates that there is a person in the air-conditioned room, the predetermined timing at which the horizontal blades 71a to 71d pause the synchronous swing operation varies depending on the set mode. . The predetermined timing when the draft prevention mode is set is when the horizontal blades 71a to 17d reach an angle at which the conditioned air is sent in a direction where no one is present. That is, in the draft prevention mode, at a predetermined timing, the horizontal blades 71a to 71d are temporarily stopped in a posture in which the wind direction angle is in a direction where no one is present. The predetermined timing when the draft mode is set is when the horizontal blades 71a to 17d reach an angle at which the conditioned air is sent in the direction in which the person is present. That is, in the draft mode, at a predetermined timing, the horizontal blades 71a to 71d are temporarily stopped in a posture in which the wind direction angle is in the direction in which the person is present. In summary, in FIG. 12, the predetermined timing at which the horizontal blades 71a to 71d are temporarily stopped changes according to the detection result of the human detection sensor 62 and the set mode.
　尚、本実施形態に係る上記休止期間ＴＡは、運転の種類や設定温度、人検知センサ６２の検知結果等に関係なく、机上計算やシミュレーション、実験等によって予め所定の値に決定されている。この場合、休止期間ＴＡの長さは、最大５秒であって、例えば３秒と決定される。
　また、室内制御部６７は、運転開始から所定時間経過後、上述した図１１，１２に係る水平羽根７１ａ～７１ｄの動作を終了させ、水平羽根７１ａ～７１ｄを所定角度傾斜させる。これにより、運転開始から所定時間の間に同期スイング動作及び一時停止動作を行っていた水平羽根７１ａ～７１ｄは、これらの動作をやめ、水平羽根７１ａ～７１ｄの風向角度は、風向Ｐ０～Ｐ４のいずれかとなる。例えば、運転開始から所定時間経過後、各水平羽根７１ａ～７１ｄの風向角度は、運転の種類や設定温度、リモートコントローラ９９を介して設定された風量等により、風向Ｐ０～Ｐ４のいずれかを採り得る。また、リモートコントローラ９９を介してスイング動作が設定されていた場合には、水平羽根７１ａ～７１ｄは、個々に独立して上下方向に回動するスイング動作を行うことで、風向Ｐ０～Ｐ４のいずれかを採ることができる。
　ここで、上述した水平羽根７１ａ～７１ｄの動作が行われる所定時間は、例えば５分であることができ、机上計算やシミュレーション、実験等によって予め決定されていてもよい。また、上記所定時間は、その時々の空調室内の状態（具体的には、床の温度Ｔｆや、空調室内の人の有無、吸込空気温度Ｔｒ等）に応じて、室内制御部６７によって適宜決定されてもよい。 The rest period TA according to the present embodiment is determined in advance to a predetermined value by desktop calculation, simulation, experiment, or the like, regardless of the type of operation, the set temperature, the detection result of the human detection sensor 62, or the like. In this case, the length of the pause period TA is a maximum of 5 seconds, for example, 3 seconds.
Further, the indoor control unit 67 ends the operation of the horizontal blades 71a to 71d according to FIGS. 11 and 12 described above after a predetermined time has elapsed from the start of operation, and inclines the horizontal blades 71a to 71d by a predetermined angle. As a result, the horizontal blades 71a to 71d that have been performing the synchronous swing operation and the pause operation for a predetermined time from the start of operation stop these operations, and the wind direction angles of the horizontal blades 71a to 71d are the wind directions P0 to P4. Either. For example, after a predetermined time has elapsed from the start of operation, the wind direction angle of each of the horizontal blades 71a to 71d takes any of the wind directions P0 to P4 depending on the type of operation, the set temperature, the air volume set via the remote controller 99, and the like. obtain. Further, when the swing operation is set through the remote controller 99, the horizontal blades 71a to 71d perform swing operations that individually rotate in the vertical direction, so that any one of the wind directions P0 to P4 can be achieved. Can be taken.
Here, the predetermined time during which the operations of the horizontal blades 71a to 71d described above are performed may be, for example, 5 minutes, and may be determined in advance by desktop calculation, simulation, experiment, or the like. The predetermined time is appropriately determined by the indoor control unit 67 according to the state of the air-conditioned room at that time (specifically, the floor temperature Tf, the presence or absence of a person in the air-conditioned room, the intake air temperature Tr, etc.). May be.
　　　－風量制御－
　また、室内制御部６７は、室内ファン４１の風量の制御を行う。室内ファン４１の風量は、室内制御部６７が室内ファンモータ４１ａの回転数を変更することによって、最も回転数が大きく大風量の風量Ｈ、風量Ｈの回転数よりも小さく中程度の風量の風量Ｍ、風量Ｍの回転数よりもさら小さく小風量の風量Ｌ、及び、風量Ｌの回転数よりもさら小さく最小風量の風量ＬＬの間で４段階に変更されることができる。ここで、風量Ｈ、風量Ｍ及び風量Ｌは、リモートコントローラ９９からの要求や各種センサ６１～６３の検出値等に基づいて設定することが可能である。しかし、風量ＬＬは、リモートコントローラ９９からの要求によっては設定することができず、所定の制御状態の場合に制御的に設定されるものである。 -Air volume control-
The indoor control unit 67 controls the air volume of the indoor fan 41. As for the air volume of the indoor fan 41, the indoor controller 67 changes the rotation speed of the indoor fan motor 41a, so that the air volume H having the largest rotation speed and the large air volume H is smaller than the rotation speed of the air volume H, and the medium air volume. The air volume L can be changed in four stages between M, the air volume L with a smaller air volume than the rotational speed of the air volume M, and the air volume LL with a minimum air volume smaller than the rotational speed of the air volume L. Here, the air volume H, the air volume M, and the air volume L can be set based on a request from the remote controller 99, detection values of the various sensors 61 to 63, and the like. However, the air volume LL cannot be set according to a request from the remote controller 99, and is set in a control manner in a predetermined control state.
　　－リモコン用受信部－
　リモコン用受信部６９は、リモートコンローラ９９からの各種要求を受信するためのものであって、例えば赤外線受光素子等によって構成されている。具体的には、リモコン用受信部６９は、リモートコントローラ９９を介してユーザによりなされた冷房運転や暖房運転の開始指示を受信したり、空調室内の設定温度、所望する風量及び風向設定、タイマによる運転のオン及びオフの指示、水平羽根７１ａ～７１ｄを個別にスイングさせるモードまたは水平羽根７１ａ～７１ｄの風向角度を固定するモードの指示等を受信したりすることができる。更に、リモコン用受信部６９は、運転開始から所定時間の間に水平羽根７１ａ～７１ｄをスイングさせるモードとして、上述したデフォルトモード、ドラフトモード、ドラフト防止モードのうち、いずれか１つの指示を受け付けることができる。 -Remote control receiver-
The remote control receiver 69 is for receiving various requests from the remote controller 99, and is composed of, for example, an infrared light receiving element. Specifically, the remote control receiving unit 69 receives a cooling operation or heating operation start instruction made by the user via the remote controller 99, or sets a set temperature in the air-conditioned room, a desired air volume and direction, and a timer. It is possible to receive an instruction to turn on and off, an instruction to swing the horizontal blades 71a to 71d individually, or a mode to fix the wind direction angle of the horizontal blades 71a to 71d. Further, the remote control receiving unit 69 accepts any one of the above-described default mode, draft mode, and draft prevention mode as a mode for swinging the horizontal blades 71a to 71d during a predetermined time from the start of operation. Can do.
　　＜動作＞
　　（１）天井設置型室内ユニットの全体的な動作の流れ
　図１３，１４は、本実施形態に係る天井設置型室内ユニット４を備える空気調和装置１の全体的な動作の流れを示すフロー図である。
　ステップＳ１：リモートコントローラ９９を介して、ユーザにより空気調和装置１の暖房運転及び冷房運転等の運転開始が指示された場合（Ｓ１のＹｅｓ）、室外ユニット２及び天井設置型室内ユニット４は、指示された運転を開始する。
　ステップＳ２～Ｓ４：リモートコントローラ９９を介して、ユーザにより「デフォルトモード」が設定されている場合（ステップＳ２のＹｅｓ）、室内制御部６７は、複数の水平羽根７１ａ～７１ｄに対し、同期スイング動作を開始させる。即ち、室内制御部６７は、互いに対向して位置する水平羽根７１ａと７１ｃ、水平羽根７１ｂと７１ｄがそれぞれ同期して同じ姿勢を採りつつスイングすると共に、隣接する水平羽根７１ａ～７１ｄ同士が同期しながら逆方向にスイングするように、水平羽根７１ａ～７１ｄの回動制御を開始する（Ｓ３）。この同期スイング動作において、水平羽根７１ａ～７１ｄの回転方向が変化した時には、室内制御部６７は、回動方向が変化した瞬間に水平羽根７１ａ～７１ｄが採っていた姿勢のままで休止期間ＴＡの間スイングを一時的に停止させる（Ｓ４）。つまり、水平羽根７１ａ～７１ｄは、風向Ｐ０または風向Ｐ４の姿勢で一時的に停止することとなる。 <Operation>
(1) Flow of overall operation of ceiling-mounted indoor unit FIGS. 13 and 14 are flowcharts showing the flow of overall operation of the air conditioner 1 including the ceiling-mounted indoor unit 4 according to this embodiment. is there.
Step S1: When the user gives an instruction to start operation such as heating operation or cooling operation of the air conditioner 1 via the remote controller 99 (Yes in S1), the outdoor unit 2 and the ceiling-mounted indoor unit 4 Started operation.
Steps S2 to S4: When the “default mode” is set by the user via the remote controller 99 (Yes in Step S2), the indoor control unit 67 performs a synchronous swing operation on the plurality of horizontal blades 71a to 71d. To start. That is, the indoor control unit 67 swings while the horizontal blades 71a and 71c and the horizontal blades 71b and 71d positioned opposite to each other are synchronized and adopt the same posture, and the adjacent horizontal blades 71a to 71d are synchronized with each other. However, the rotation control of the horizontal blades 71a to 71d is started so as to swing in the reverse direction (S3). In this synchronous swing operation, when the rotation direction of the horizontal blades 71a to 71d changes, the indoor control unit 67 keeps the posture taken by the horizontal blades 71a to 71d at the moment when the rotation direction changes. The inter-swing is temporarily stopped (S4). That is, the horizontal blades 71a to 71d are temporarily stopped in the attitude of the wind direction P0 or the wind direction P4.
　ステップＳ５：ステップＳ３から所定時間が経過するまで（Ｓ５のＮｏ）、ステップＳ４が繰り返される。
　ステップＳ６：ステップＳ２において、デフォルトモードが設定されていない場合には（Ｓ２のＮｏ）、ドラフトモードまたはドラフト防止モードが設定されている。そこで、この場合には、人検知センサ６２は空調室内の人の有無の検知を開始する。そして、室内制御部６７は、複数の水平羽根７１ａ～７１ｄに対し、同期スイング動作を開始させる（Ｓ６）。
　ステップＳ７～Ｓ８：人検知センサ６２が空調室内に人が居ることを検知した場合（Ｓ７のＹｅｓ）、室内制御部６７は、同期スイング動作を行っている水平羽根７１ａ～７１ｄを一時停止させるための所定タイミングと、このタイミングにて水平羽根７１ａ～７１ｄが採る姿勢とを決定する（Ｓ８）。 Step S5: Step S4 is repeated until a predetermined time has elapsed from Step S3 (No in S5).
Step S6: In step S2, when the default mode is not set (No in S2), the draft mode or the draft prevention mode is set. Therefore, in this case, the human detection sensor 62 starts detecting whether or not there is a person in the air-conditioned room. Then, the indoor control unit 67 starts a synchronous swing operation for the plurality of horizontal blades 71a to 71d (S6).
Steps S7 to S8: When the human detection sensor 62 detects that a person is present in the air-conditioned room (Yes in S7), the indoor control unit 67 temporarily stops the horizontal blades 71a to 71d performing the synchronous swing operation. The predetermined timing and the posture taken by the horizontal blades 71a to 71d at this timing are determined (S8).
　ステップＳ９～Ｓ１１：ドラフトモードが設定されている場合には（Ｓ９のＹｅｓ）、室内制御部６７は、同期スイング動作を行っている水平羽根７１ａ～７１ｄを、ステップＳ８で決定した所定タイミングにて休止期間ＴＡの間スイングを一時停止させる。この時、水平羽根７１ａ～７１ｄは、人の居る方向に空気を送る姿勢で一時停止する（Ｓ１０）。ステップＳ６から所定時間が経過するまで（Ｓ１１のＮｏ）、ステップＳ１０の動作が繰り返される。
　ステップＳ１２～Ｓ１４：ドラフト防止モードが設定されている場合には（Ｓ１２のＹｅｓ）、室内制御部６７は、同期スイング動作を行っている水平羽根７１ａ～７１ｄを、ステップＳ８で決定した所定タイミングにて休止期間ＴＡの間スイングを一時停止させる。この時、水平羽根７１ａ～７１ｄは、人の居ない方向に空気を送る姿勢で一時停止する（Ｓ１３）。ステップＳ６から所定時間が経過するまで（Ｓ１４のＮｏ）、ステップＳ１３の動作が繰り返される。 Steps S9 to S11: When the draft mode is set (Yes in S9), the indoor control unit 67 sets the horizontal blades 71a to 71d performing the synchronous swing operation at the predetermined timing determined in step S8. The swing is paused during the rest period TA. At this time, the horizontal blades 71a to 71d are temporarily stopped in a posture to send air in the direction in which the person is present (S10). Until the predetermined time has elapsed from step S6 (No in S11), the operation in step S10 is repeated.
Steps S12 to S14: When the draft prevention mode is set (Yes in S12), the indoor control unit 67 sets the horizontal blades 71a to 71d performing the synchronous swing operation at the predetermined timing determined in step S8. During the pause period TA, the swing is temporarily stopped. At this time, the horizontal blades 71a to 71d are temporarily stopped in a posture to send air in a direction where no one is present (S13). Until the predetermined time has elapsed from step S6 (No in S14), the operation in step S13 is repeated.
　ステップＳ１５：ステップＳ７にて、空調室内に人が居ることが人検知センサ６２によって検知されない場合には（Ｓ７のＮｏ）、所定時間が経過するまで（Ｓ１５のＮｏ）、デフォルトモードと同様の同期スイング動作が行われる。
　ステップＳ１６：ステップＳ５，Ｓ１１，Ｓ１４，Ｓ１５において、同期スイング動作開始から所定時間がそれぞれ経過すると（Ｓ５のＹｅｓ，Ｓ１１のＹｅｓ，Ｓ１４のＹｅｓ，Ｓ１５のＹｅｓ）、室内制御部６７は、水平羽根７１ａ～７１ｄの同期スイング動作及び一時停止動作を終了させる（Ｓ１６）。
　ステップＳ１７～Ｓ１８：ステップＳ１において指示された運転の内容が“暖房運転”である場合には（Ｓ１７のＹｅｓ）、室内制御部６７は、空調室内が所望の設定に応じて暖房されるように、リモートコントローラ９９を介して要求された風向及び風量に基づいて、水平羽根７１ａ～７１ｄの風向角度の制御ならびに風量制御を行う（Ｓ１８）。 Step S15: In step S7, when the presence of a person in the air-conditioned room is not detected by the human detection sensor 62 (No in S7), the same synchronization as in the default mode is performed until a predetermined time elapses (No in S15). Swing motion is performed.
Step S16: In steps S5, S11, S14, and S15, when a predetermined time has elapsed from the start of the synchronous swing operation (Yes in S5, Yes in S11, Yes in S14, Yes in S15), the indoor control unit 67 The synchronous swing operation and the pause operation of 71a to 71d are terminated (S16).
Steps S17 to S18: When the content of the operation instructed in Step S1 is “heating operation” (Yes in S17), the indoor control unit 67 heats the air-conditioned room according to a desired setting. Then, based on the wind direction and the air volume requested via the remote controller 99, the airflow direction control and the air volume control of the horizontal blades 71a to 71d are performed (S18).
　ステップＳ１９～Ｓ２０：ステップＳ１において指示された運転の内容が“冷房運転”である場合には（Ｓ１９のＹｅｓ）、室内制御部６７は、空調室内が所望の設定に応じて冷房されるように、リモートコントローラ９９を介して要求された風向及び風量に基づいて、水平羽根７１ａ～７１ｄの風向角度の制御ならびに風量制御を行う（Ｓ２０）。
　ステップＳ２１：空気調和装置１の運転終了が指示されるまで（Ｓ２１のＮｏ）、ステップＳ１８，２０の運転が継続して行われる。リモートコントローラ９９を介して空気調和装置１の運転終了が指示されると（Ｓ２１のＹｅｓ）、室外ユニット２及び天井設置型室内ユニット４は、運転を終了する。 Steps S19 to S20: When the content of the operation instructed in Step S1 is “cooling operation” (Yes in S19), the indoor control unit 67 causes the air-conditioned room to be cooled according to a desired setting. Then, based on the wind direction and the air volume requested via the remote controller 99, the airflow direction control and the air volume control of the horizontal blades 71a to 71d are performed (S20).
Step S21: Until the operation end of the air conditioner 1 is instructed (No in S21), the operations in steps S18 and S20 are continued. When the end of the operation of the air conditioner 1 is instructed via the remote controller 99 (Yes in S21), the outdoor unit 2 and the ceiling-mounted indoor unit 4 end the operation.
　　（２）暖房運転
　以下では、空気調和装置１が上述した暖房運転（Ｓ１７，Ｓ１８）を行う場合の動作について説明する。
　暖房運転は、室外熱交換器２３が冷媒の蒸発器として機能し、かつ、室内熱交換器４２が冷媒の放熱器として機能するように冷媒回路１０内の冷媒を循環させることによって、空調室内の空気を加熱して空調室内に空調空気として供給する運転である。
　暖房運転においては、室外熱交換器２３が冷媒の蒸発器として機能し、かつ、室内熱交換器４２が冷媒の放熱器として機能する状態（すなわち、図１の四路切換弁２２の破線で示される状態）になるように、四路切換弁２２が切り換えられる。
　このような状態の冷媒回路１０において、冷凍サイクルにおける低圧の冷媒は、圧縮機２１に吸入され、冷凍サイクルにおける高圧まで圧縮された後に吐出される。圧縮機２１から吐出された高圧の冷媒は、四路切換弁２２、ガス側閉鎖弁２６及びガス冷媒連絡管６を通じて、室内熱交換器４２に送られる。室内熱交換器４２に送られた高圧の冷媒は、室内熱交換器４２において、室内ファン４１によって供給される空調室内の空気と熱交換を行って放熱する。これにより、空調室内の空気は、加熱されて空調空気となり、吹き出し口５６（より具体的には、辺部吹出口５６ａ～５６ｄ及び角部吹出口５６ｅ～５６ｈ）から空調室内に吹き出される。室内熱交換器４２において放熱した高圧の冷媒は、液冷媒連絡管５及び液側閉鎖弁２５を通じて、膨張弁２４に送られて、冷凍サイクルにおける低圧まで減圧される。膨張弁２４において減圧された低圧の冷媒は、室外熱交換器２３に送られる。室外熱交換器２３に送られた低圧の冷媒は、室外熱交換器２３において、室外ファン２７によって供給される空調室内の空気と熱交換を行って蒸発する。室外熱交換器２３において蒸発した低圧の冷媒は、四路切換弁２２を通じて、再び、圧縮機２１に吸入される。 (2) Heating operation Below, the operation | movement in case the air conditioning apparatus 1 performs the heating operation (S17, S18) mentioned above is demonstrated.
The heating operation is performed by circulating the refrigerant in the refrigerant circuit 10 so that the outdoor heat exchanger 23 functions as a refrigerant evaporator and the indoor heat exchanger 42 functions as a refrigerant radiator. In this operation, air is heated and supplied as air-conditioned air into the air-conditioned room.
In the heating operation, the outdoor heat exchanger 23 functions as a refrigerant evaporator and the indoor heat exchanger 42 functions as a refrigerant radiator (that is, indicated by a broken line of the four-way switching valve 22 in FIG. 1). The four-way selector valve 22 is switched so that
In the refrigerant circuit 10 in such a state, the low-pressure refrigerant in the refrigeration cycle is sucked into the compressor 21 and is discharged after being compressed to a high pressure in the refrigeration cycle. The high-pressure refrigerant discharged from the compressor 21 is sent to the indoor heat exchanger 42 through the four-way switching valve 22, the gas side closing valve 26 and the gas refrigerant communication pipe 6. The high-pressure refrigerant sent to the indoor heat exchanger 42 radiates heat by exchanging heat with the air in the air-conditioned room supplied by the indoor fan 41 in the indoor heat exchanger 42. As a result, the air in the air-conditioned room is heated to become air-conditioned air, and is blown into the air-conditioned room from the air outlets 56 (more specifically, the side air outlets 56a to 56d and the corner air outlets 56e to 56h). The high-pressure refrigerant that has radiated heat in the indoor heat exchanger 42 is sent to the expansion valve 24 through the liquid refrigerant communication tube 5 and the liquid-side shut-off valve 25, and is decompressed to a low pressure in the refrigeration cycle. The low-pressure refrigerant decompressed by the expansion valve 24 is sent to the outdoor heat exchanger 23. The low-pressure refrigerant sent to the outdoor heat exchanger 23 evaporates by exchanging heat with the air in the air-conditioned room supplied by the outdoor fan 27 in the outdoor heat exchanger 23. The low-pressure refrigerant evaporated in the outdoor heat exchanger 23 is again sucked into the compressor 21 through the four-way switching valve 22.
　尚、このような暖房運転においては、吸込空気温度Ｔｒがリモートコントローラ９９等から要求された目標空気温度Ｔｒｓになるように制御される。すなわち、暖房運転において、吸込空気温度Ｔｒが目標空気温度Ｔｒｓよりも低い場合には、上記の運転制御（以下、この状態を暖房サーモオン状態とする）を行う。そして、吸込空気温度Ｔｒが目標空気温度Ｔｒｓに達した場合には、圧縮機２１を停止して冷媒回路１０内の冷媒の循環を行わないようにするとともに、室内ファン４１の風量を風量ＬＬに変更する制御（以下、この状態を暖房サーモオフ状態とする）を行う。
　また、ステップ１２において要求風向及び要求風量に基づく制御がなされる場合には、空調室内のユーザの快適性を高めることができるように、室内制御部６７は、各種センサ６１～６３の検知結果に基づいて、各水平羽根７１ａ～７１ｄの風向角度及び室内ファン４１の風量を種々の風向・風量に設定しつつ制御することができる。 In such heating operation, the intake air temperature Tr is controlled to be the target air temperature Trs requested from the remote controller 99 or the like. That is, in the heating operation, when the intake air temperature Tr is lower than the target air temperature Trs, the above-described operation control (hereinafter, this state is referred to as a heating thermo-on state) is performed. When the intake air temperature Tr reaches the target air temperature Trs, the compressor 21 is stopped so as not to circulate the refrigerant in the refrigerant circuit 10, and the air volume of the indoor fan 41 is set to the air volume LL. Control to be changed (hereinafter, this state is referred to as a heating thermo-off state) is performed.
Further, when the control based on the required air direction and the required air volume is performed in step 12, the indoor control unit 67 uses the detection results of the various sensors 61 to 63 so as to improve the comfort of the user in the air-conditioned room. Based on this, it is possible to control while setting the wind direction angle of each horizontal blade 71a to 71d and the air volume of the indoor fan 41 to various wind directions and air volumes.
　例えば、人検知センサ６２が空調対象エリアＡ～Ｄの人の存在を検知した場合、室内制御部６７は、その検出値に基づいて、人の存在が検知された空調対象エリアに対応する辺部吹出口の水平羽根の風向角度を風向Ｐ０に設定することができる。他方、空調対象エリアＡ～Ｄのうち人の非存在が検知された空調対象エリアにおいては、室内制御部６７は、人の存在が検知される空調対象エリアに対応する辺部吹出口の水平羽根の風向角度を風向Ｐ０よりも下向きの風向Ｐ１～Ｐ３等に設定することができる。これにより、空調対象エリアＡ～Ｄに存在するユーザのドラフトによる不快感を抑えることができ、ユーザの快適性の向上を図ることができる。
　また、床温度センサ６３が検知した空調室内の床面の温度Ｔｆが目標床面温度Ｔｆｓよりも低い場合には、室内制御部６７は、各水平羽根７１ａ～７１ｄの風向角度を下向きの風向（例えば、風向Ｐ３、Ｐ４等）に設定することができる。他方、空調室内の床面の温度Ｔｆが目標床面温度Ｔｆｓに達している場合には、各水平羽根７１ａ～７１ｄの風向角度を風向Ｐ３、Ｐ４等よりも上向きの風向（例えば、風向Ｐ０、Ｐ１等）に設定することができる。これにより、空調室内の床面付近が十分に暖まっていない場合に、暖気を床面まで到達させることができ、空調室内のユーザの快適性の向上を図ることができる。
　その他、室内制御部６７は、吸込空気温度センサ６１が検知した吸込空気温度Ｔｒと空調室内の床面の温度Ｔｆとの平均温度や、該平均温度と人検知センサ６２の検出結果との組み合わせ等に基づき、各水平羽根７１ａ～７１ｄの風向角度及び風流を変更してもよい。 For example, when the human detection sensor 62 detects the presence of a person in the air-conditioning target areas A to D, the indoor control unit 67, based on the detected value, the side corresponding to the air-conditioning target area in which the presence of the person is detected. The wind direction angle of the horizontal blades at the air outlet can be set to the wind direction P0. On the other hand, in the air conditioning target area in which the absence of a person is detected among the air conditioning target areas A to D, the indoor control unit 67 sets the horizontal blades at the side outlet corresponding to the air conditioning target area in which the presence of a person is detected. Can be set to wind directions P1 to P3 and the like that are lower than the wind direction P0. Thereby, it is possible to suppress discomfort caused by the user's draft existing in the air-conditioning target areas A to D, and to improve the comfort of the user.
When the floor temperature Tf in the air-conditioned room detected by the floor temperature sensor 63 is lower than the target floor surface temperature Tfs, the indoor control unit 67 sets the airflow direction angle of each horizontal blade 71a to 71d to a downward wind direction ( For example, the wind direction P3, P4, etc.) can be set. On the other hand, when the temperature Tf of the floor surface in the air-conditioned room has reached the target floor surface temperature Tfs, the wind direction angle of each horizontal blade 71a to 71d is higher than the wind direction P3, P4, etc. (for example, the wind direction P0, P1 etc.). Thereby, when the vicinity of the floor surface in the air-conditioned room is not sufficiently warmed, the warm air can reach the floor surface, and the comfort of the user in the air-conditioned room can be improved.
In addition, the indoor control unit 67 includes an average temperature between the intake air temperature Tr detected by the intake air temperature sensor 61 and the floor surface temperature Tf in the air-conditioning room, a combination of the average temperature and the detection result of the human detection sensor 62, and the like. Based on the above, the wind direction angle and the wind flow of each of the horizontal blades 71a to 71d may be changed.
　　（３）冷房運転
　以下では、空気調和装置１が上述した冷房運転（Ｓ１９，Ｓ２０）を行う場合の動作について説明する。
　冷房運転は、室外熱交換器２３が冷媒の放熱器として機能し、かつ、室内熱交換器４２が冷媒の蒸発器として機能するように冷媒回路１０内の冷媒を循環させることによって、空調室内の空気を冷却して空調室内に空調空気として供給する運転である。
　冷房運転においては、室外熱交換器２３が冷媒の放熱器として機能し、かつ、室内熱交換器４２が冷媒の蒸発器として機能する状態（すなわち、図１の四路切換弁２２の実線で示される状態）になるように、四路切換弁２２が切り換えられる。
　このような状態の冷媒回路１０において、冷凍サイクルにおける低圧の冷媒は、圧縮機２１に吸入され、冷凍サイクルにおける高圧まで圧縮された後に吐出される。圧縮機２１から吐出された高圧の冷媒は、四路切換弁２２を通じて、室外熱交換器２３に送られる。室外熱交換器２３に送られた高圧の冷媒は、室外熱交換器２３において、室外ファン２７によって供給される室外空気と熱交換を行って放熱する。室外熱交換器２３において放熱した高圧の冷媒は、膨張弁２４に送られて、冷凍サイクルにおける低圧まで減圧される。膨張弁２４において減圧された低圧の冷媒は、液側閉鎖弁２５及び液冷媒連絡管５を通じて、室内熱交換器４２に送られる。室内熱交換器４２に送られた低圧の冷媒は、室内熱交換器４２において、室内ファン４１によって供給される空調室内の空気と熱交換を行って蒸発する。これにより、空調室内の空気は、冷却されて空調空気となり、吹き出し口５６（より具体的には、辺部吹出口５６ａ～５６ｄ及び角部吹出口５６ｅ～５６ｈ）から空調室内に吹き出される。室内熱交換器４２において蒸発した低圧の冷媒は、ガス冷媒連絡管６、ガス側閉鎖弁２６及び四路切換弁２２を通じて、再び、圧縮機２１に吸入される。 (3) Cooling operation Below, the operation | movement in case the air conditioning apparatus 1 performs the cooling operation (S19, S20) mentioned above is demonstrated.
The cooling operation is performed by circulating the refrigerant in the refrigerant circuit 10 so that the outdoor heat exchanger 23 functions as a refrigerant radiator and the indoor heat exchanger 42 functions as a refrigerant evaporator. In this operation, air is cooled and supplied to the air-conditioned room as conditioned air.
In the cooling operation, the outdoor heat exchanger 23 functions as a refrigerant radiator and the indoor heat exchanger 42 functions as a refrigerant evaporator (that is, indicated by the solid line of the four-way switching valve 22 in FIG. 1). The four-way selector valve 22 is switched so that
In the refrigerant circuit 10 in such a state, the low-pressure refrigerant in the refrigeration cycle is sucked into the compressor 21 and is discharged after being compressed to a high pressure in the refrigeration cycle. The high-pressure refrigerant discharged from the compressor 21 is sent to the outdoor heat exchanger 23 through the four-way switching valve 22. The high-pressure refrigerant sent to the outdoor heat exchanger 23 radiates heat by exchanging heat with outdoor air supplied by the outdoor fan 27 in the outdoor heat exchanger 23. The high-pressure refrigerant that has dissipated heat in the outdoor heat exchanger 23 is sent to the expansion valve 24 and is decompressed to a low pressure in the refrigeration cycle. The low-pressure refrigerant decompressed by the expansion valve 24 is sent to the indoor heat exchanger 42 through the liquid side closing valve 25 and the liquid refrigerant communication pipe 5. The low-pressure refrigerant sent to the indoor heat exchanger 42 evaporates by exchanging heat with air in the air-conditioned room supplied by the indoor fan 41 in the indoor heat exchanger 42. As a result, the air in the air-conditioned room is cooled to become air-conditioned air, and is blown into the air-conditioned room from the air outlet 56 (more specifically, the side air outlets 56a to 56d and the corner air outlets 56e to 56h). The low-pressure refrigerant evaporated in the indoor heat exchanger 42 is again sucked into the compressor 21 through the gas refrigerant communication pipe 6, the gas side closing valve 26 and the four-way switching valve 22.
　尚、このような冷房運転においては、吸込空気温度Ｔｒがリモートコントローラ９９等から要求された目標空気温度Ｔｒｓになるように制御される。すなわち、冷房運転において、吸込空気温度Ｔｒが目標空気温度Ｔｒｓよりも高い場合には、上記の運転制御（以下、この状態を冷房サーモオン状態とする）を行う。そして、吸込空気温度Ｔｒが目標空気温度Ｔｒｓに達した場合には、圧縮機２１を停止して冷媒回路１０内の冷媒の循環を行わないようにするとともに、室内ファン４１の風量を風量ＬＬに変更する制御（以下、この状態を冷房サーモオフ状態とする）を行う。
　また、暖房運転時と同様、ステップＳ１４において要求風向及び要求風量に基づく制御がなされる場合には、空調室内のユーザの快適性を高めることができるように、室内制御部６７は、各種センサ６１～６３の検知結果に基づいて、各水平羽根７１ａ～７１ｄの風向角度及び室内ファン４１の風量を種々の風向・風量に設定しつつ制御することができる。 In such cooling operation, the intake air temperature Tr is controlled to be the target air temperature Trs requested from the remote controller 99 or the like. That is, in the cooling operation, when the intake air temperature Tr is higher than the target air temperature Trs, the above-described operation control (hereinafter, this state is referred to as a cooling thermo-on state) is performed. When the intake air temperature Tr reaches the target air temperature Trs, the compressor 21 is stopped so as not to circulate the refrigerant in the refrigerant circuit 10, and the air volume of the indoor fan 41 is set to the air volume LL. Control to be changed (hereinafter, this state is referred to as a cooling thermo-off state) is performed.
Similarly to the heating operation, when the control based on the required air direction and the required air volume is performed in step S14, the indoor control unit 67 includes various sensors 61 so that the comfort of the user in the air-conditioned room can be improved. Based on the detection results of .about.63, the wind direction angle of each horizontal blade 71a to 71d and the air volume of the indoor fan 41 can be controlled while setting various wind directions and air volumes.
　例えば、人検知センサ６２が空調対象エリアＡ～Ｄの人の存在を検知した場合、室内制御部６７は、その検出値に基づいて、人の存在が検知された空調対象エリアに対応する辺部吹出口の水平羽根の風向角度を風向Ｐ０に設定することができる。他方、空調対象エリアＡ～Ｄのうち人の非存在が検知された空調対象エリアにおいては、人の存在が検知される空調対象エリアに対応する辺部吹出口の水平羽根の風向角度を風向Ｐ０よりも下向きの風向Ｐ１～Ｐ３等に設定することができる。これにより、空調対象エリアＡ～Ｄに存在するユーザのドラフトによる不快感を抑えることができ、ユーザの快適性の向上を図ることができる。 For example, when the human detection sensor 62 detects the presence of a person in the air-conditioning target areas A to D, the indoor control unit 67, based on the detected value, the side corresponding to the air-conditioning target area in which the presence of the person is detected. The wind direction angle of the horizontal blades at the air outlet can be set to the wind direction P0. On the other hand, in the air conditioning target area in which the absence of a person is detected among the air conditioning target areas A to D, the wind direction angle P0 of the horizontal blades at the side air outlets corresponding to the air conditioning target area in which the presence of a person is detected is determined. It is possible to set the wind direction P1 to P3 or the like downward. Thereby, it is possible to suppress discomfort caused by the user's draft existing in the air-conditioning target areas A to D, and to improve the comfort of the user.
　　＜特徴＞
　本実施形態に係る天井設置型室内ユニット４には、以下のような特徴がある。
　　（１）
　従来の室内機では、水平羽根を単にスイングさせることで、空調室内の空気を攪拌させている。しかし、この室内機では、空調空気は攪拌されるとしても、空調空気を例えば所望の方向へと送ることが困難となってしまう。
　これに対し、本実施形態に係る天井設置型室内ユニット４では、少なくとも１つの水平羽根７１ａ～７１ｄが他の水平羽根７１ａ～７１ｄとは異なるスイング動作をしている間、所定タイミングで、水平羽根７１ａ～７１ｄのスイングが一時的に停止し、水平羽根７１ａ～７１ｄは、所定の姿勢で一時的に停止することとなる。そのため、吹き出し口５６から吹き出される空気は、水平羽根７１ａ～７１ｄのスイング動作によって空調室内の空気の一部と混ざり、かつスイングが一時的に停止している期間においては、水平羽根７１ａ～７１ｄが採る姿勢に応じて所望の方向へと空気が吹き出されることになる。特に、人検知センサ６２の検知結果に応じて、水平羽根７１ａ～７１ｄが一時停止する所定タイミングが決定される。従って、空調室内の空気を攪拌しつつ、空調室内にいる人の快適性を確保することができる。 <Features>
The ceiling-mounted indoor unit 4 according to this embodiment has the following characteristics.
(1)
In the conventional indoor unit, the air in the air-conditioned room is agitated by simply swinging the horizontal blade. However, in this indoor unit, even if the conditioned air is agitated, it becomes difficult to send the conditioned air in a desired direction, for example.
In contrast, in the ceiling-mounted indoor unit 4 according to the present embodiment, the horizontal blades 71a to 71d are swung at different timings while the at least one horizontal blade 71a to 71d is swinging differently from the other horizontal blades 71a to 71d. The swings 71a to 71d are temporarily stopped, and the horizontal blades 71a to 71d are temporarily stopped in a predetermined posture. For this reason, the air blown from the blowout port 56 is mixed with a part of the air in the air-conditioned room by the swing operation of the horizontal blades 71a to 71d, and the horizontal blades 71a to 71d during the period in which the swing is temporarily stopped. The air is blown out in a desired direction according to the posture taken by the camera. In particular, the predetermined timing at which the horizontal blades 71a to 71d are temporarily stopped is determined according to the detection result of the human detection sensor 62. Therefore, it is possible to ensure the comfort of the person in the air-conditioned room while stirring the air in the air-conditioned room.
　　（２）
　また、本実施形態の天井設置型室内ユニット４に係るケーシング５１には、複数の吹き出し口５６が形成されており、複数の吹き出し口５６それぞれには、水平羽根７１ａ～７１ｄが設けられている。これにより、各吹き出し口５６から吹き出される空調空気は、複数の水平羽根７１ａ～７１ｄそれぞれの同期スイング動作によって空調室内の空気の一部と混ざり、かつ休止期間ＴＡにおいては、各水平羽根７１ａ～７１ｄが採る姿勢に応じて所望の方向へと空気が吹き出されることになる。
　　（３）
　特に、本実施形態の室内ユニット４は、天井に設置されるタイプの室内機であり、効果的に空調室内の空気を攪拌させることが可能となっている。 (2)
Further, a plurality of outlets 56 are formed in the casing 51 of the ceiling-mounted indoor unit 4 of the present embodiment, and horizontal blades 71a to 71d are provided in each of the plurality of outlets 56. Thus, the conditioned air blown out from each outlet 56 is mixed with a part of the air in the air-conditioned room by the synchronous swing operation of each of the plurality of horizontal blades 71a to 71d, and in the rest period TA, each of the horizontal blades 71a to 71a. Air is blown out in a desired direction according to the attitude taken by 71d.
(3)
In particular, the indoor unit 4 of this embodiment is an indoor unit of a type installed on the ceiling, and can effectively stir the air in the air-conditioned room.
　　（４）
　また、本実施形態の天井設置型室内ユニット４によると、デフォルト防止モードが設定されている場合、所定タイミング時には、水平羽根７１ａ～７１ｄは、人の居ない方向に空調空気を送る姿勢でスイングを一時的に停止する。そのため、この天井設置型室内ユニット４では、空調室内に居るユーザへは空調空気が直接当たることがない。従って、一時的に同期スイング動作が停止する際にユーザの居る方向に空調空気が送られることで、ユーザが感じる不快感を抑えることができる。
　　（５）
　また、本実施形態の天井設置型室内ユニット４によると、デフォルトモードが設定されている場合、所定タイミング時には、水平羽根７１ａ～７１ｄは、あえて人の居る方向に空調空気を送る姿勢でスイングを一時的に停止する。従って、空調空気を攪拌する動作を行っている際においても、ユーザには早く空調空気が送られることとなる。 (4)
Further, according to the ceiling-mounted indoor unit 4 of the present embodiment, when the default prevention mode is set, at a predetermined timing, the horizontal blades 71a to 71d swing in a posture to send conditioned air in a direction where no one is present. Stop temporarily. Therefore, in this ceiling-mounted indoor unit 4, conditioned air does not directly hit a user who is in the air-conditioned room. Therefore, when the synchronized swing operation is temporarily stopped, the conditioned air is sent in the direction in which the user is present, so that discomfort felt by the user can be suppressed.
(5)
Further, according to the ceiling-mounted indoor unit 4 of the present embodiment, when the default mode is set, at a predetermined timing, the horizontal blades 71a to 71d temporarily swing in a posture in which conditioned air is sent in the direction where the person is present. Stop. Therefore, even when the operation of stirring the conditioned air is performed, the conditioned air is quickly sent to the user.
　　（６）
　また、本実施形態に係る天井設置型室内ユニット４では、運転開始から所定時間の間、水平羽根７１ａ～７１ｄに対し上述した同期スイング動作及び一時停止動作が行われるが、所定時間経過後、水平羽根７１ａ～７１ｄの同期スイング動作及び一時停止動作は終了し、水平羽根７１ａ～７１ｄは所定角度傾斜するようになる。これにより、空気の攪拌が十分になされた空調室内に所望の温度の空気を供給することができるため、ドラフトによってユーザが感じる不快感を抑えることができ、空調室内を快適にすることができる。 (6)
In the ceiling-mounted indoor unit 4 according to the present embodiment, the above-described synchronous swing operation and temporary stop operation are performed on the horizontal blades 71a to 71d for a predetermined time from the start of operation. The synchronous swing operation and the temporary stop operation of the blades 71a to 71d are finished, and the horizontal blades 71a to 71d are inclined at a predetermined angle. As a result, air having a desired temperature can be supplied into the air-conditioned room where the air has been sufficiently agitated, so that discomfort felt by the user due to the draft can be suppressed, and the air-conditioned room can be made comfortable.
　＜第２実施形態＞
　上記第１実施形態では、休止期間ＴＡの長さが予め決められた一定の期間である場合について説明した。しかし、休止期間の長さは、空調室内のその時々の状態に対応させるべく、所定条件に応じて設定されてもよい。所定条件としては、運転の種類の他、設定温度と現在の空調室内の温度との差が所定差以上か否か、床温度が所定温度以下か否か、ユーザの有無と床温度との差の組み合わせによる条件、空調室内にいる人の人数に基づく条件、人の活動量に基づく条件等といった、各種センサ６１～６３による検知結果に基づく条件が挙げられる。 Second Embodiment
In the first embodiment, the case where the length of the pause period TA is a predetermined period has been described. However, the length of the suspension period may be set according to a predetermined condition so as to correspond to the current state of the air-conditioned room. Predetermined conditions include the type of operation, whether the difference between the set temperature and the current temperature in the air-conditioned room is greater than or equal to a predetermined difference, whether or not the floor temperature is less than or equal to the predetermined temperature, and the difference between the presence or absence of the user and the floor temperature Conditions based on the detection results of the various sensors 61 to 63, such as conditions based on the number of persons in the air-conditioned room, conditions based on the amount of human activity, and the like.
　図１５は、空調室内にいる人の活動量によって休止期間ＴＢ１，ＴＢ２の長さが変化する場合を示している。本実施形態に係る人検知センサ６２は、空調室内にいる人の存在の有無のみならず、空調室内に居る人の活動量を検知することができるセンサである。図１５では、水平羽根７１ａ～７１ｄが同期スイング動作を行っている間における第１時間に、人検知センサ６２が空調室内における人の存在を検知すると共に、その人の活動量を検知したとする。室内制御部６７は、人検知センサ６２の検知結果に基づいて、水平羽根７１ａ～７１ｄがスイングを一時停止する所定タイミングを決定するが、更に室内制御部６７は、検知された人の活動量を所定量と比較し、当該活動量が所定量以下であったと判断したとする。この場合、活動量は比較的少ないため、室内制御部６７は、スイングしている水平羽根７１ａ～７１ｄが一時停止する休止期間ＴＢ１を、予め設定されているデフォルトの値に設定する。その後の第２時間に、人検知センサ６２が、空調室内における人の活動量が増したことを検知し、この活動量が所定量以上であったとする。この場合、室内制御部６７は、水平羽根７１ａ～７１ｄがスイングを一時停止する所定タイミングを、新たな検知結果に応じて決定し直すが、更に、それまでの水平羽根７１ａ～７１ｄの休止期間ＴＢ１を、新たに検知した活動量に応じて休止期間ＴＢ２に設定し直す。休止期間ＴＢ２は、休止期間ＴＢ１よりも長く設定されている。 FIG. 15 shows a case where the lengths of the suspension periods TB1 and TB2 vary depending on the amount of activity of people in the air-conditioned room. The human detection sensor 62 according to the present embodiment is a sensor that can detect not only the presence or absence of a person in the air-conditioned room, but also the amount of activity of the person in the air-conditioned room. In FIG. 15, it is assumed that the human detection sensor 62 detects the presence of a person in the air-conditioned room and detects the amount of activity of the person during the first time while the horizontal blades 71a to 71d perform the synchronous swing operation. . The indoor control unit 67 determines a predetermined timing at which the horizontal blades 71a to 71d pause the swing based on the detection result of the human detection sensor 62. The indoor control unit 67 further determines the detected amount of activity of the person. Suppose that it is determined that the amount of activity is less than or equal to a predetermined amount compared to a predetermined amount. In this case, since the amount of activity is relatively small, the indoor control unit 67 sets the pause period TB1 during which the swinging horizontal blades 71a to 71d are temporarily stopped to a preset default value. It is assumed that the human detection sensor 62 detects that the amount of human activity in the air-conditioned room has increased in the second time thereafter, and this amount of activity is greater than or equal to a predetermined amount. In this case, the indoor control unit 67 re-determines the predetermined timing at which the horizontal blades 71a to 71d temporarily stop the swing according to the new detection result, and further, the rest period TB1 of the horizontal blades 71a to 71d until then. Is reset to the suspension period TB2 according to the newly detected activity amount. The suspension period TB2 is set longer than the suspension period TB1.
　他の例としては、人検知センサ６２が空調室内の人の人数を検知する場合が挙げられる。人検知センサ６２が検知した空調室内の人の人数が所定人数未満である場合には、室内制御部６７は、休止期間をデフォルトの値に設定する。空調室内の人の人数が所定人数以上である場合には、室内制御部６７は、休止期間をデフォルトの値よりも長い値に設定する。
　また、他の例としては、人検知センサ６２が空調室内の人の活動量と空調室内の人の人数とを検知する場合が挙げられる。人検知センサ６２が検知した活動量が所定量未満であり、かつ空調室内の人数が所定人数よりも少ない場合には、室内制御部６７は、休止期間をデフォルトの値に設定する。人検知センサ６２が検知した活動量が所定量以上であるか、または空調室内の人数が所定人数よりも多い場合には、室内制御部６７は、休止期間をデフォルトの値よりも長い値に設定する。 As another example, there is a case where the human detection sensor 62 detects the number of people in the air-conditioned room. When the number of persons in the air-conditioned room detected by the person detection sensor 62 is less than the predetermined number, the indoor control unit 67 sets the suspension period to a default value. When the number of persons in the air-conditioned room is equal to or greater than the predetermined number, the indoor control unit 67 sets the suspension period to a value longer than the default value.
As another example, there is a case where the human detection sensor 62 detects the amount of activity of people in the air-conditioned room and the number of people in the air-conditioned room. When the activity amount detected by the human detection sensor 62 is less than the predetermined amount and the number of people in the air-conditioned room is less than the predetermined number, the indoor control unit 67 sets the suspension period to a default value. When the amount of activity detected by the human detection sensor 62 is equal to or greater than a predetermined amount, or when the number of people in the air-conditioned room is larger than the predetermined number, the indoor control unit 67 sets the pause period to a value longer than the default value. To do.
　更に他の例として、人検知センサ６２が検知した活動量が所定量以上であって、かつ人数が所定人数よりも多い場合には、室内制御部６７は休止期間を長めに設定してもよい。この場合、人検知センサ６２が検知した活動量が所定量未満であって、かつ人数が所定人数よりも少ない場合には、室内制御部６７は休止期間をデフォルト値に設定する。
　また、人検知センサ６２以外のセンサによる検知結果に基づいて休止期間が設定される例としては、以下のようなものが挙げられる。床面の温度Ｔｆが低く、吸込空気温度センサ６１により検知された吸込空気温度Ｔｒと床温度センサ６３により検知された床面の温度Ｔｆとの温度差が第１温度差以上と大きい場合には、室内制御部６７は、休止期間を長めに設定する。逆に、床面の温度Ｔｆが高く、当該温度差が第１温度差よりも低い第２温度差以下である場合には、室内制御部６７は、休止期間を短めに設定する。
　更に他の例としては、冷房運転時において、床面の温度Ｔｆが所定温度よりも低い場合には、室内制御部６７は、休止期間を短めに設定する。逆に、床面の温度Ｔｆが所定温度よりも高い場合には、室内制御部６７は、休止期間を長めに設定する。 As yet another example, when the amount of activity detected by the human detection sensor 62 is equal to or greater than a predetermined amount and the number of persons is greater than the predetermined number, the indoor control unit 67 may set the pause period longer. . In this case, when the amount of activity detected by the human detection sensor 62 is less than the predetermined amount and the number of persons is smaller than the predetermined number, the indoor control unit 67 sets the suspension period to a default value.
Moreover, the following is mentioned as an example in which a rest period is set based on a detection result by a sensor other than the human detection sensor 62. When the temperature Tf of the floor surface is low and the temperature difference between the intake air temperature Tr detected by the intake air temperature sensor 61 and the floor temperature Tf detected by the floor temperature sensor 63 is larger than the first temperature difference. The indoor control unit 67 sets the suspension period longer. Conversely, when the floor surface temperature Tf is high and the temperature difference is equal to or smaller than the second temperature difference lower than the first temperature difference, the indoor control unit 67 sets the pause period to be short.
As another example, when the floor surface temperature Tf is lower than a predetermined temperature during the cooling operation, the indoor control unit 67 sets the suspension period shorter. Conversely, when the floor surface temperature Tf is higher than the predetermined temperature, the indoor control unit 67 sets the suspension period longer.
　　＜特徴＞
　（１）
　本実施形態に係る室内ユニットによると、所定条件に応じて休止期間ＴＢ１，ＴＢ２が長くなったり短くなったりする。これにより、空調室内の空気を攪拌している場合においても、その時々の空調室内の状態に応じて空調空気を所定の方向に的確に送ることができる。
　（２）
　空調室内に居る人が多い場合や、人が運動等の激しい動作をしている場合には、空調室内に居る人は、空調室内の温度を“暑い”と感じてしまう傾向にある。しかし、本実施形態に係る室内ユニットでは、空調室内に居る人の人数及び／または活動量が所定量よりも多い場合、スイング中の休止期間を長く設定する。そのため、人の空調室内の温度に対する不快感をより解消することができる。 <Features>
(1)
According to the indoor unit according to the present embodiment, the suspension periods TB1 and TB2 become longer or shorter depending on a predetermined condition. Thereby, even when the air in the air-conditioned room is being stirred, the air-conditioned air can be accurately sent in a predetermined direction according to the state of the air-conditioned room at that time.
(2)
When there are many people in the air-conditioned room or when a person is exercising vigorously, such as exercise, the person in the air-conditioned room tends to feel the temperature in the air-conditioned room as “hot”. However, in the indoor unit according to the present embodiment, when the number of people in the air-conditioned room and / or the amount of activity is greater than a predetermined amount, the suspension period during the swing is set longer. Therefore, the discomfort with respect to the temperature in a person's air-conditioning room | chamber can be eliminated more.
　＜他の実施形態＞
　以上、本発明の実施形態について図面に基づいて説明したが、具体的な構成は、これらの実施形態に限られるものではなく、発明の要旨を逸脱しない範囲で変更可能である。
　　（Ａ）
　上記第１及び第２実施形態では、図１１，１２，１５に示すように、水平羽根７１ａ，７１ｃが同期して同じ姿勢を採りつつスイングし、水平羽根７１ｂ，７１ｄが同期して同じ姿勢を採りつつスイングすることで、互いに隣接する水平羽根７１ａ～７１ｄ同士は異なるスイング動作を行う場合について説明した。しかし、同期して同じ姿勢を採りつつスイングする水平羽根の組み合わせは、互いに対向する水平羽根７１ａ～７１ｄではなく、任意の組み合わせであることができる。例えば、互いに隣接する水平羽根７１ａ，７１ｂが同期して同じ姿勢を採りつつスイングし、互いに隣接する水平羽根７１ｂ，７１ｄが同期して同じ姿勢を採りつつスイングしてもよい。この場合、隣接する水平羽根７１ｂと７１ｃ、及び水平羽根７１ａと７１ｄは、それぞれ異なるスイング動作を行うこととなる。 <Other embodiments>
As mentioned above, although embodiment of this invention was described based on drawing, a specific structure is not restricted to these embodiment, It can change in the range which does not deviate from the summary of invention.
(A)
In the first and second embodiments, as shown in FIGS. 11, 12, and 15, the horizontal blades 71a and 71c swing while taking the same posture synchronously, and the horizontal blades 71b and 71d are synchronized and take the same posture. The case where the horizontal blades 71a to 71d adjacent to each other perform different swing operations by swinging while picking has been described. However, the combination of horizontal blades that swing while taking the same posture synchronously can be any combination, not the horizontal blades 71a to 71d that face each other. For example, the horizontal blades 71a and 71b adjacent to each other may swing while taking the same posture synchronously, and the horizontal blades 71b and 71d adjacent to each other may swing while taking the same posture synchronously. In this case, the adjacent horizontal blades 71b and 71c and the horizontal blades 71a and 71d perform different swing operations.
　また、隣接する水平羽根７１ａ～７１ｄが同期して同じ姿勢を採りつつスイングするのであれば、当該スイングを行う水平羽根の数は２つに限定されず、例えば３つであってもよい。但し、当該スイングを行う水平羽根の数の上限は、天井設置型室内ユニットに設けられている水平羽根の数をＮとした場合、Ｎ－１以下であることを要する。つまり、同期して同じ姿勢を採りつつスイングする水平羽根の数Ｍは、“２≦Ｍ≦Ｎ－１”の条件を満たす必要がある。
　これにより、吹き出し口５６から吹き出される空気は、空調室内の空気の一部と混ざると共に、互いに隣接する水平羽根７１ａ～７１ｄによって取り囲まれるようにして、該水平羽根７１ａ～７１ｄによって空調室内へと送られる。従って、空調室内の空気を攪拌しつつ、空調空気を所望の方向へ送ることができる。 In addition, if the adjacent horizontal blades 71a to 71d swing while taking the same posture synchronously, the number of horizontal blades performing the swing is not limited to two, and may be three, for example. However, the upper limit of the number of horizontal blades that perform the swing needs to be N-1 or less, where N is the number of horizontal blades provided in the ceiling-mounted indoor unit. That is, the number M of horizontal blades that swing while taking the same posture in synchronism needs to satisfy the condition “2 ≦ M ≦ N−1”.
As a result, the air blown out from the air outlet 56 is mixed with a part of the air in the air-conditioned room, and is surrounded by the horizontal blades 71a to 71d adjacent to each other, and into the air-conditioned room by the horizontal blades 71a to 71d. Sent. Therefore, the air-conditioned air can be sent in a desired direction while stirring the air in the air-conditioned room.
　　（Ｂ）
　上記第１及び第２実施形態では、水平羽根が４つの場合、即ち、空調空気が４方向に吹き出される場合について説明した。しかし、水平羽根の枚数はこれに限定されず、４つ以上であってもよい。つまり、本発明に係る天井設置型室内ユニット４は、空調空気を４方向以上の方向に吹き出す場合においても、適用することができる。
　　（Ｃ）
　上記第１及び第２実施形態では、ケーシング５１の下面に相当する化粧パネル５２に、吹き出し口５６及び４つの水平羽根７１ａ～７１ｄが設けられているタイプの天井設置型室内ユニット４について説明した。しかし、本発明に係る室内ユニットは、吹き出し口がケーシングの各側面に設けられている天井設置型のタイプの室内ユニットにも採用することができる。
　また、本発明に係る室内ユニットは、複数の水平羽根があるタイプであれば、天井設置型ではなく、壁掛けタイプや床上設置タイプの室内ユニットであってもよい。 (B)
In the first and second embodiments, the case where there are four horizontal blades, that is, the case where conditioned air is blown out in four directions has been described. However, the number of horizontal blades is not limited to this, and may be four or more. That is, the ceiling-mounted indoor unit 4 according to the present invention can be applied even when air-conditioned air is blown out in four or more directions.
(C)
In the first and second embodiments, the ceiling-mounted indoor unit 4 of the type in which the decorative panel 52 corresponding to the lower surface of the casing 51 is provided with the outlet 56 and the four horizontal blades 71a to 71d has been described. However, the indoor unit according to the present invention can also be adopted in a ceiling-mounted type indoor unit in which a blowout port is provided on each side surface of the casing.
Further, the indoor unit according to the present invention may be a wall-mounted type or a floor-mounted type indoor unit, as long as the indoor unit is a type having a plurality of horizontal blades.
　　（Ｄ）
　更に、上記第１及び第２実施形態では、羽根支持部７２，７３によって、吹き出し口５６が、辺部吹出口５６ａ～５６ｄと角部吹出口５６ｅ～５６ｈとに区分された場合について説明した。しかし、本発明に係る室内ユニットでは、吹き出し口の形態はこれに限定されず、吹き出し口が複数設けられていても良い。即ち、本発明の室内ユニットは、ケーシングに複数の吹き出し口が形成されており、各吹き出し口には水平羽根が設けられているタイプであってもよい。
　この場合においても、少なくとも１つの水平羽根は、他の水平羽根とは異なるスイング動作を行う。そして、各水平羽根は、所定タイミング時に、スイング動作を一時的に停止する。これにより、各吹き出し口から吹き出される空調空気は、複数の水平羽根それぞれのスイング動作によって空調室内の空気の一部と混ざり、かつスイングが一時的に停止している期間においては、各水平羽根が採る姿勢に応じて所望の方向へと空気が吹き出されることになる。従って、空調室内の空気を攪拌しつつ、空調空気を所望の方向へ送ることができる。
　具体的に、このような室内ユニットとしては、壁掛けタイプや床上設置タイプの他、２つの吹き出し口を有するケーシングが天井に設置される、いわゆるダブルフロータイプの空調機等が挙げられる。 (D)
Further, in the first and second embodiments described above, the case where the blowout port 56 is divided into the side blowout ports 56a to 56d and the corner blowout ports 56e to 56h by the blade support portions 72 and 73 has been described. However, in the indoor unit according to the present invention, the form of the air outlet is not limited to this, and a plurality of air outlets may be provided. That is, the indoor unit of the present invention may be of a type in which a plurality of outlets are formed in the casing, and horizontal vanes are provided in each outlet.
Even in this case, at least one horizontal blade performs a swing operation different from other horizontal blades. Each horizontal blade temporarily stops the swing operation at a predetermined timing. Thus, the conditioned air blown out from each outlet is mixed with a part of the air in the air-conditioned room by the swing operation of each of the plurality of horizontal blades, and each horizontal blade is in a period when the swing is temporarily stopped. The air is blown out in a desired direction according to the posture taken by the camera. Therefore, the air-conditioned air can be sent in a desired direction while stirring the air in the air-conditioned room.
Specifically, as such an indoor unit, a so-called double-flow type air conditioner in which a casing having two outlets is installed on the ceiling in addition to a wall-mounted type or a floor-mounted type.
　　（Ｅ）
　上記第１及び第２実施形態では、水平羽根７１ａ～７１ｄの同期スイング動作及び一時停止動作は、運転開始から所定時間が経過するまでの間行われると説明した。しかし、当該動作が行われる期間は、運転開始から所定時間が経過するまでに限定されない。例えば、当該動作は、リモートコントローラ９９を介して要求された場合に、要求された時間だけ行われても良い。 (E)
In the first and second embodiments, it has been described that the synchronous swing operation and the temporary stop operation of the horizontal blades 71a to 71d are performed until a predetermined time elapses from the start of operation. However, the period during which the operation is performed is not limited to a predetermined time after the start of operation. For example, when the operation is requested via the remote controller 99, the operation may be performed only for the requested time.
　　（Ｆ）
　上記第１及び第２実施形態では、デフォルトモード時、回動方向が常に変化する時に水平羽根７１ａ～７１ｄが一時停止すると説明した。
　しかし、デフォルトモード時、運転種類が冷房運転であれば、水平羽根７１ａ～７１ｄは、回動方向が下方向から上方向へと変化する際には一時停止せず、逆に回動方向が上方向から下方向へと変化する際にのみ一時停止してもよい。これにより、冷房運転時に係る休止期間においては、吹き出し口５６から吹き出される冷たい空調空気は、略水平方向に吹き出される。そのため、空調室内の空気を攪拌しつつ、冷たい空気を空調室内の水平方向に確実に送ることができる。尚、水平に吹き出された冷たい空気は、除々に下方向へと降下して、やがて床付近に届くようになるため、空調室内の温度は下げられるようになる。
　また、デフォルトモード時、運転種類が暖房運転であれば、水平羽根７１ａ～７１ｄは、回動方向が上方向から下方向へと変化する際には一時停止せず、逆に回動方向が下方向から上方向へと変化する際には一時停止してもよい。これにより、暖房運転時に係る休止期間には、吹き出し口５６から吹き出される暖かい空調空気は、略垂直方向に吹き出され、床付近に届くようになる。よって、スイング動作により空調室内の空気の攪拌をしつつ、暖かい空気を空調室内の下方に確実に送ることができ、空調室内のユーザの足下を温めることができる。 (F)
In the first and second embodiments described above, in the default mode, the horizontal blades 71a to 71d are temporarily stopped when the rotation direction always changes.
However, in the default mode, if the operation type is the cooling operation, the horizontal blades 71a to 71d do not pause when the rotation direction changes from the lower direction to the upper direction, and conversely the rotation direction increases. You may pause only when changing from direction to down. As a result, during the pause period during the cooling operation, the cold conditioned air blown from the blowout port 56 is blown out in a substantially horizontal direction. Therefore, it is possible to reliably send cold air in the horizontal direction in the air-conditioned room while stirring the air in the air-conditioned room. In addition, since the cold air blown out horizontally gradually falls downward and eventually reaches the vicinity of the floor, the temperature in the air-conditioned room can be lowered.
In the default mode, if the operation type is the heating operation, the horizontal blades 71a to 71d do not stop temporarily when the rotation direction changes from the upper direction to the lower direction, and conversely the rotation direction decreases. You may pause when changing from direction to direction. Thus, during the pause period during the heating operation, the warm conditioned air blown from the blowout port 56 is blown out in a substantially vertical direction and reaches the vicinity of the floor. Therefore, while stirring the air in the air-conditioned room by the swing operation, warm air can be reliably sent downward in the air-conditioned room, and the user's feet in the air-conditioned room can be warmed.
　本発明は、それぞれ独立して上下方向の風向角度を変更することが可能な複数の水平羽根が吹出口に設けられた空気調和装置の室内ユニットに広く適用可能である。 The present invention is widely applicable to an indoor unit of an air conditioner in which a plurality of horizontal blades capable of independently changing the vertical wind direction angle are provided at the outlet.
　１　空気調和装置
　４　天井設置型室内ユニット
　３９　室外制御部
　４１　室内ファン
　５１　ケーシング
　５６　吹出口
　５６ａ，５６ｂ，５６ｃ，５６ｄ　辺部吹出口
　５６ｅ，５６ｆ，５６ｇ，５６ｈ　角部吹出口
　６１　吸込空気温度センサ
　６２　人検知センサ
　６３　床温度センサ
　７１ａ，７１ｂ，７１ｃ，７１ｄ　水平羽根
　６７　室内制御部
　６９　リモコン用受信部
　９９　リモートコンローラ
　９９ａ　表示部
　ＴＡ，ＴＢ１，ＴＢ２　休止期間 DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 4 Ceiling installation type indoor unit 39 Outdoor control part 41 Indoor fan 51 Casing 56 Outlet 56a, 56b, 56c, 56d Side part outlet 56e, 56f, 56g, 56h Corner part outlet 61 Intake air temperature sensor 62 Human detection sensor 63 Floor temperature sensor 71a, 71b, 71c, 71d Horizontal blade 67 Indoor control unit 69 Remote control receiver 99 Remote controller 99a Display unit TA, TB1, TB2 Rest period
特開２００９－１０３４１７号公報JP 2009-103417 A

Claims (8)

  1. 　空調室に設けられる空気調和装置の室内ユニットであって、
    　吹き出し口（５６）が形成されたケーシング（５１）と、
    　前記吹き出し口（５６）に対し回動可能に設けられており、それぞれ独立して上下方向の風向角度を変更することが可能な複数の水平羽根（７１ａ～７１ｄ）と、
    　空調室内における人の存在の有無を検知する人検知部（６２）と、
    　複数の前記水平羽根（７１ａ～７１ｄ）のうち少なくとも１つについて残りの前記水平羽根（７１ａ～７１ｄ）と異なるスイング動作をさせると共に所定タイミングで前記水平羽根（７１ａ～７１ｄ）のスイングが一時的に停止するように、前記水平羽根（７１ａ～７１ｄ）の回動制御を行い、更には前記人検知部（６２）の検知結果に応じて前記所定タイミングを決定する制御部（６７）と、
    を備える、空気調和装置の室内ユニット（４）。     An indoor unit of an air conditioner provided in an air conditioning room,
    A casing (51) in which an outlet (56) is formed;
    A plurality of horizontal blades (71a to 71d) provided so as to be rotatable with respect to the outlet (56) and capable of independently changing the vertical wind direction angle;
    A human detection unit (62) for detecting the presence or absence of a person in the air-conditioned room;
    At least one of the plurality of horizontal blades (71a to 71d) is caused to swing differently from the remaining horizontal blades (71a to 71d), and the swing of the horizontal blades (71a to 71d) is temporarily moved at a predetermined timing. A control unit (67) that performs rotation control of the horizontal blades (71a to 71d) so as to stop, and further determines the predetermined timing according to a detection result of the human detection unit (62);
    An indoor unit (4) of an air conditioner comprising:
  2. 　前記ケーシング（５１）には、複数の前記吹き出し口（５６）が形成されており、
    　複数の前記吹き出し口（５６）それぞれには、前記水平羽根（７１ａ～７１ｂ）が設けられている、
    請求項１に記載の空気調和装置の室内ユニット（４）。     The casing (51) is formed with a plurality of the outlets (56),
    Each of the plurality of outlets (56) is provided with the horizontal blades (71a-71b),
    The indoor unit (4) of the air conditioning apparatus according to claim 1.
  3. 　前記ケーシング（５１）は空調室の天井に設置されており、その前記下面は平面視において略４角形状を有し、
    　前記吹き出し口（５６）は、前記ケーシング（５１）の前記下面の周縁部に沿うようにして前記下面に形成されており、
    　前記水平羽根（７１ａ～７１ｄ）は、前記下面の各辺部に沿って４つ設けられている、
    請求項１または２に記載の空気調和装置の室内ユニット（４）。     The casing (51) is installed on the ceiling of the air conditioning room, and the lower surface thereof has a substantially quadrangular shape in plan view,
    The outlet (56) is formed on the lower surface along the peripheral edge of the lower surface of the casing (51),
    Four horizontal blades (71a to 71d) are provided along each side of the lower surface.
    The indoor unit (4) of the air conditioning apparatus according to claim 1 or 2.
  4. 　前記制御部（６７）は、前記人検知部（６２）が空調室内において人の存在を検知した場合、前記所定タイミング時に前記水平羽根（７１ａ～７１ｄ）の風向角度が人の居ない方向となる姿勢で一時的に停止するように、前記水平羽根（７１ａ～７１ｄ）の回動を制御する、
    請求項１～３のいずれか１項に記載の空気調和装置の室内ユニット（４）。     When the human detection unit (62) detects the presence of a person in the air-conditioned room, the control unit (67) causes the wind direction angle of the horizontal blades (71a to 71d) to be in a direction in which no person is present at the predetermined timing. Controlling the rotation of the horizontal blades (71a to 71d) so as to temporarily stop in the posture;
    The air conditioner indoor unit (4) according to any one of claims 1 to 3.
  5. 　前記制御部（６７）は、前記人検知部（６２）が空調室内において人の存在を検知した場合、前記所定タイミング時に前記水平羽根（７１ａ～７１ｄ）の風向角度が人の居る方向となる姿勢で一時的に停止するように、前記水平羽根（７１ａ～７１ｄ）の回動を制御する、
    請求項１～３のいずれか１項に記載の空気調和装置の室内ユニット（４）。     The control unit (67) is configured such that when the human detection unit (62) detects the presence of a person in the air-conditioned room, the wind direction angle of the horizontal blades (71a to 71d) is in the direction in which the person is present at the predetermined timing. To control the rotation of the horizontal blades (71a to 71d) so as to temporarily stop at
    The air conditioner indoor unit (4) according to any one of claims 1 to 3.
  6. 　前記制御部（６７）は、前記水平羽根（７１ａ～７１ｄ）が前記スイング動作を一時的に停止する期間である休止期間の長さを所定条件に応じて設定する、
    請求項１～５のいずれか１項に記載の空気調和装置の室内ユニット（４）。     The control unit (67) sets a length of a pause period, which is a period in which the horizontal blades (71a to 71d) temporarily stop the swing operation, according to a predetermined condition.
    The indoor unit (4) of the air conditioner according to any one of claims 1 to 5.
  7. 　前記人検知部（６２）は、更に空調室内にいる人の人数及び／または活動量を検知し、
    　前記制御部（６７）は、前記人検知部（６２）が検知した前記人数及び／または前記活動量が所定量よりも多い場合、前記休止期間を長く設定する、
    請求項６に記載の空気調和装置の室内ユニット（４）。     The human detection unit (62) further detects the number of people and / or the amount of activity of people in the air-conditioned room,
    The control unit (67) sets the pause period longer when the number of persons and / or the amount of activity detected by the person detection unit (62) is greater than a predetermined amount.
    The indoor unit (4) of the air conditioning apparatus according to claim 6.
  8. 　前記制御部（６７）は、
    　運転開始から所定時間の間、前記水平羽根（７１ａ～７１ｄ）のスイングが前記所定タイミングで一時的に停止するように、各前記水平羽根の回動動作を制御し、
    　運転開始から前記所定時間経過後、前記所定タイミングで一時的に停止するスイング動作を行っていた前記水平羽根（７１ａ～７１ｄ）を、所定角度傾斜させる、
    請求項１～７のいずれか１項に記載の空気調和装置の室内ユニット（４）。     The control unit (67)
    For the predetermined time from the start of operation, the rotation operation of each horizontal blade is controlled so that the swing of the horizontal blade (71a to 71d) temporarily stops at the predetermined timing,
    The horizontal blades (71a to 71d) that have been performing a swing operation that temporarily stops at the predetermined timing after the elapse of the predetermined time from the start of operation are inclined at a predetermined angle;
    The indoor unit (4) of an air conditioner according to any one of claims 1 to 7.
PCT/JP2011/053067 2010-02-15 2011-02-15 In-room unit of air conditioning device WO2011099608A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2010030300 2010-02-15
JP2010-030692 2010-02-15
JP2010030692 2010-02-15
JP2010-030300 2010-12-17

Publications (1)

Publication Number Publication Date
WO2011099608A1 true WO2011099608A1 (en) 2011-08-18

Family

ID=44367871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/053067 WO2011099608A1 (en) 2010-02-15 2011-02-15 In-room unit of air conditioning device

Country Status (2)

Country Link
JP (1) JP2011185591A (en)
WO (1) WO2011099608A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513694A (en) * 2013-02-22 2014-11-05 Mitsubishi Electric Corp Indoor unit and air conditioning apparatus
US20160313021A1 (en) * 2015-04-27 2016-10-27 Fujitsu General Limited Ceiling-embedded air conditioner
EP3096088A1 (en) * 2015-05-20 2016-11-23 Panasonic Intellectual Property Management Co., Ltd. Room air conditioning system
EP3187791A4 (en) * 2014-09-30 2018-05-02 Daikin Industries, Ltd. Indoor unit for air conditioning device
CN109564022A (en) * 2016-08-10 2019-04-02 三菱电机株式会社 Air conditioner
EP3575697A1 (en) * 2018-06-01 2019-12-04 Lg Electronics Inc. A ceiling type air conditioner and controlling method thereof
CN110848931A (en) * 2019-11-07 2020-02-28 海信（山东）空调有限公司 Control method of ceiling machine and ceiling machine
CN112032841A (en) * 2020-08-31 2020-12-04 青岛海尔空调电子有限公司 Control method, embedded machine, and computer-readable storage medium
WO2021040634A1 (en) * 2019-08-26 2021-03-04 Ozyegin Universitesi An adaptive vent system for providing localized and customized thermal comfort.
EP3751212A4 (en) * 2018-02-06 2021-08-25 Hitachi-Johnson Controls Air Conditioning, Inc. Indoor unit of air conditioner

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5856473B2 (en) * 2011-12-27 2016-02-09 日立アプライアンス株式会社 Air conditioner
CN104214887B (en) * 2013-06-04 2017-03-15 珠海格力电器股份有限公司 The control method of air conditioner air deflector
JP5725114B2 (en) 2013-09-24 2015-05-27 ダイキン工業株式会社 Air conditioning system
JP6217287B2 (en) * 2013-09-30 2017-10-25 ダイキン工業株式会社 Air conditioner
KR102474655B1 (en) * 2016-09-05 2022-12-07 한온시스템 주식회사 Portable type air conditioning system
JPWO2017208404A1 (en) * 2016-06-01 2018-10-04 三菱電機株式会社 Air conditioner
CN106322687B (en) * 2016-09-26 2017-12-29 珠海格力电器股份有限公司 A kind of position of human body detection method and system
WO2019159271A1 (en) * 2018-02-15 2019-08-22 日立ジョンソンコントロールズ空調株式会社 Air conditioner
KR20230015146A (en) * 2021-07-22 2023-01-31 엘지전자 주식회사 Air conditioner and method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62200126A (en) * 1986-02-27 1987-09-03 Toshiba Heating Appliances Co Blower
JPH06323599A (en) * 1993-05-18 1994-11-25 Sharp Corp Air conditioner
JPH06323604A (en) * 1993-05-11 1994-11-25 Mitsubishi Electric Corp Controlling equipment of direction of air of air-conditioner
JPH08166156A (en) * 1994-12-13 1996-06-25 Toshiba Corp Air conditioning equipment
JP2001133019A (en) * 1999-11-01 2001-05-18 Matsushita Refrig Co Ltd Air conditioner
JP2001304653A (en) * 2000-04-17 2001-10-31 Matsushita Seiko Co Ltd Control device for human body detection air-conditioning air blow exit
JP2007024453A (en) * 2005-07-21 2007-02-01 Mitsubishi Electric Corp Air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001116323A (en) * 1999-10-12 2001-04-27 Matsushita Refrig Co Ltd Air conditioner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62200126A (en) * 1986-02-27 1987-09-03 Toshiba Heating Appliances Co Blower
JPH06323604A (en) * 1993-05-11 1994-11-25 Mitsubishi Electric Corp Controlling equipment of direction of air of air-conditioner
JPH06323599A (en) * 1993-05-18 1994-11-25 Sharp Corp Air conditioner
JPH08166156A (en) * 1994-12-13 1996-06-25 Toshiba Corp Air conditioning equipment
JP2001133019A (en) * 1999-11-01 2001-05-18 Matsushita Refrig Co Ltd Air conditioner
JP2001304653A (en) * 2000-04-17 2001-10-31 Matsushita Seiko Co Ltd Control device for human body detection air-conditioning air blow exit
JP2007024453A (en) * 2005-07-21 2007-02-01 Mitsubishi Electric Corp Air conditioner

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513694B (en) * 2013-02-22 2017-10-11 Mitsubishi Electric Corp Indoor unit and air conditioning apparatus
GB2513694A (en) * 2013-02-22 2014-11-05 Mitsubishi Electric Corp Indoor unit and air conditioning apparatus
US10760812B2 (en) 2014-09-30 2020-09-01 Daikin Industries, Ltd. Indoor unit for air conditioning device
EP3187791A4 (en) * 2014-09-30 2018-05-02 Daikin Industries, Ltd. Indoor unit for air conditioning device
US20160313021A1 (en) * 2015-04-27 2016-10-27 Fujitsu General Limited Ceiling-embedded air conditioner
EP3088807A1 (en) * 2015-04-27 2016-11-02 Fujitsu General Limited Ceiling-embedded air conditioner
US10288310B2 (en) * 2015-04-27 2019-05-14 Fujitsu General Limited Ceiling-embedded air conditioner with windbreak ribs
EP3096088A1 (en) * 2015-05-20 2016-11-23 Panasonic Intellectual Property Management Co., Ltd. Room air conditioning system
US10288303B2 (en) 2015-05-20 2019-05-14 Panasonic Intellectual Property Management Co., Ltd. Room air conditioning system
CN109564022A (en) * 2016-08-10 2019-04-02 三菱电机株式会社 Air conditioner
EP3499141A4 (en) * 2016-08-10 2019-08-21 Mitsubishi Electric Corporation Air conditioner
EP3751212A4 (en) * 2018-02-06 2021-08-25 Hitachi-Johnson Controls Air Conditioning, Inc. Indoor unit of air conditioner
EP3575697A1 (en) * 2018-06-01 2019-12-04 Lg Electronics Inc. A ceiling type air conditioner and controlling method thereof
US11280516B2 (en) 2018-06-01 2022-03-22 Lg Electronics Inc. Ceiling type air conditioner and controlling method thereof
WO2021040634A1 (en) * 2019-08-26 2021-03-04 Ozyegin Universitesi An adaptive vent system for providing localized and customized thermal comfort.
CN110848931A (en) * 2019-11-07 2020-02-28 海信（山东）空调有限公司 Control method of ceiling machine and ceiling machine
CN112032841A (en) * 2020-08-31 2020-12-04 青岛海尔空调电子有限公司 Control method, embedded machine, and computer-readable storage medium

Also Published As

Publication number Publication date
JP2011185591A (en) 2011-09-22

Similar Documents

Publication Publication Date Title
WO2011099608A1 (en) In-room unit of air conditioning device
JP5500181B2 (en) Air conditioner ceiling-mounted indoor unit
EP3096088A1 (en) Room air conditioning system
JP5310792B2 (en) Air conditioner ceiling-mounted indoor unit
WO2011093205A1 (en) Ceiling-mounted indoor unit for air conditioning device
JP2008101894A (en) Air conditioner and control method therefor
JP2011099609A (en) Indoor unit of air conditioner
WO2020156344A1 (en) Air conditioner
JP2011196666A (en) Air conditioner
JP2004150731A (en) Air conditioner
JP2011153725A (en) Ceiling-mounted type indoor unit of air conditioning device
JP5692327B1 (en) Air conditioner
JP2004076974A (en) Air conditioner and control method of air conditioner
JP5581845B2 (en) Air conditioning indoor unit
JP4170676B2 (en) Vane control device for ceiling type air conditioner and control method therefor
JP2012102926A (en) Air conditioner
JP2016183806A (en) Air conditioner
JP5293647B2 (en) Air conditioner ceiling-mounted indoor unit
JP2016156543A (en) Indoor unit and air conditioner
JP4133100B2 (en) Air conditioner and control method of air conditioner
JP6562139B2 (en) Refrigeration equipment
WO2021054181A1 (en) Air conditioning indoor unit and air conditioner
JP2013134005A (en) Air conditioner
JP2022172985A (en) Indoor unit for air conditioner
JP2021081186A (en) Air-conditioning indoor unit and air conditioner

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11742347

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11742347

Country of ref document: EP

Kind code of ref document: A1