WO2016143122A1 - 空気調和機 - Google Patents
空気調和機 Download PDFInfo
- Publication number
- WO2016143122A1 WO2016143122A1 PCT/JP2015/057314 JP2015057314W WO2016143122A1 WO 2016143122 A1 WO2016143122 A1 WO 2016143122A1 JP 2015057314 W JP2015057314 W JP 2015057314W WO 2016143122 A1 WO2016143122 A1 WO 2016143122A1
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- WO
- WIPO (PCT)
- Prior art keywords
- infrared sensor
- wind direction
- temperature
- air conditioner
- vane
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
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- 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
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- 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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
-
- 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
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- 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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F2013/0616—Outlets that have intake openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
-
- 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
-
- 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
- F24F2120/14—Activity of occupants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/32—Details or features not otherwise provided for preventing human errors during the installation, use or maintenance, e.g. goofy proof
Definitions
- the present invention relates to an air conditioner, and more particularly to setting of an installation position of an infrared sensor of the air conditioner.
- Patent Document 1 discloses an air conditioner that recognizes the installation position of the air conditioner itself in the room based on the temperature distribution output by the infrared sensor and performs an efficient air conditioning operation.
- the infrared sensor attached to the air conditioner has a standard attachment position, and when changing the attachment position of the air conditioner, the attachment position and the air conditioning are used using a mark or the like.
- An air conditioner that performs an operation corresponding to operation control is disclosed.
- the air conditioner in Patent Document 1 has a problem that the mounting position of the infrared sensor is fixed, and the mounting position of the infrared sensor in the air conditioner cannot be changed.
- the present invention has been made to solve the above-described problems, and is an air that can automatically determine the mounting position of the infrared sensor and easily correspond to the wind direction control vane and the temperature detection area.
- the purpose is to provide a harmony machine.
- An air conditioner according to the present invention has a heat exchanger and a blower built in, has a cabinet whose bottom surface is opened and installed on the ceiling, a suction port in the center, and covers the opening on the bottom surface of the cabinet. Installed in a square-shaped decorative panel that is larger than the opening of the cabinet, and at four locations around the suction port, are provided along the four sides of the decorative panel, and provided at the outlet.
- a wind vane capable of adjusting the angle independently for each of the outlets, an infrared sensor capable of detecting a floor temperature for each of the divided areas divided into four in the circumferential direction, and a control device, the infrared sensor comprising:
- the mounting direction of the infrared sensor is different depending on the corner of the decorative panel that is attached to any one of the four corners of the decorative panel.
- the control device is configured to control the wind direction vane so as to blow an air flow from one of the outlets toward the floor, to perform a heating operation or a cooling operation, and the temperature is detected by the infrared sensor, and the operation is started.
- the divided area of the infrared sensor in which the difference between the previous floor surface temperature and the floor temperature during operation is a specified value or more, the arrangement position of the wind direction vane that blows airflow toward the floor surface, and the infrared light The mounting position of the infrared sensor is determined based on the mounting reference of the sensor, and the divided vane where the floor surface temperature difference is equal to or greater than a predetermined value is associated with the wind direction vane to be controlled.
- the work for matching the detection range of the infrared sensor and the wind direction control vane is automated regardless of the mounting position of the infrared sensor, the setting becomes easy and erroneous setting is prevented. Correct operation is obtained.
- FIG. FIG. 2 is a diagram illustrating a cross section of a portion II of the air conditioner of FIG. 1. It is a bottom view of the air conditioner of FIG. It is the figure which simplified FIG. 3 and showed the direction of the detection area when an infrared sensor is attached to each corner
- 3 is a flowchart of control in the first embodiment.
- 10 is a flowchart of control in the second embodiment.
- FIG. 1 is a perspective view showing the overall structure of an air conditioner according to Embodiment 1.
- the air conditioner according to the present embodiment is installed in a state of being embedded in the ceiling or suspended from the ceiling.
- the air conditioner 50 includes a box-shaped cabinet 1 whose bottom surface is opened, and a rectangular decorative panel 2 that is attached so as to cover the bottom surface opening of the cabinet 1 and is larger than the opening of the cabinet 1.
- the decorative panel 2 is provided with a substantially rectangular air inlet 3 at the center thereof.
- blowout ports 4a to 4d (hereinafter sometimes collectively referred to as the blowout port 4) are provided so as to surround the suction port 3.
- wind direction vanes 5a to 5d which are air guide means for changing the wind direction in the vertical direction, may be referred to collectively.
- the direction of the wind blown out from each outlet 4 is set such that the air conditioner 50 can be directed in four directions by 90 ° when viewed in plan from below.
- Corner panels 2a to 2d are detachably attached to the corners of the decorative panel 2.
- one of the corners (corner part) on the lower surface of the decorative panel 2 detects the radiation temperatures of a plurality of areas of the airflow blown from the outlet 4 and is also a human body sensor.
- An infrared sensor 6 for detecting the presence of a person is attached.
- the infrared sensor 6 is not limited to the position shown in the figure, and can be attached to any desired corners C1 to C4 on the lower surface of the decorative panel 2 in accordance with the layout of the room.
- FIG. 2 is a view showing a cross section taken along the line II of the air conditioner 50 shown in FIG.
- An electric motor 7 is provided at the center of the top surface inside the cabinet 1 with the output shaft facing downward.
- a centrifugal blower 8 is attached to the output shaft, and a heat exchanger 9 is installed so as to surround the blower 8.
- An air passage 17 is formed on the outer periphery of the heat exchanger 9 so as to surround the heat exchanger 9.
- An inner cover 10 that blocks heat exchanged air and air outside the air conditioner 50 is disposed outside the air passage 17.
- a drain pan 11 that receives condensed water generated by heat exchange between the refrigerant in the heat exchanger 9 and air and that constitutes a part of the air passage 17 is installed below the heat exchanger 9.
- a decorative panel 2 is disposed below the drain pan 11.
- the suction port 3 provided in the decorative panel 2 communicates with the suction port of the blower 8.
- An air passage 17 formed by the inner cover 10 and the drain pan 11 communicates with the
- An air filter 12 for preventing dust and the like from entering the air conditioner 50 is installed in the suction port 3 provided in the decorative panel 2, and the air filter is supported outside the air filter 12.
- a grill 13 that functions as a blindfold is provided.
- a bell mouth 14 for smoothly introducing the air sucked from the suction port 3 into the blower 8 and a suction temperature sensor 15 for detecting the suction temperature are provided.
- a remote control 16 (corresponding to the control device of the present invention) is connected to the decorative panel 2 and controls the operation of the air conditioner 50.
- the remote controller 16 performs operation control of the electric motor 7, that is, operation control of the blower 8 and setting of the opening degree of the airflow vane 5 of the outlet 4, and includes a control unit 19 and the like.
- the remote controller 16 may further include a display unit 20 and an operation unit 18.
- the remote controller 16 is not limited to a wired one but may transmit an electric signal wirelessly. When the mounting position of the infrared sensor 6 is changed on the air conditioner 50, the remote controller 16 is operated to detect the mounting position.
- FIG. 3 is a bottom view of the air conditioner 50 of FIG.
- the infrared sensor 6 is attached to the corner C1. This state shows the standard mounting position of the infrared sensor 6 when the manufacturer ships the decorative panel 2 (initial state).
- FIG. 4 is a diagram showing the direction of the detection area A when the infrared sensor 6 is attached to each corner, simplifying FIG. 3.
- the detection area A of the infrared sensor 6 is divided into four detection areas A1 to A4 (corresponding to the divided areas of the present invention).
- the attachment direction of the infrared sensor 6 is determined when it is attached to each corner.
- the infrared sensor 6 when the infrared sensor 6 is attached to each corner, the infrared sensor 6 is attached so that the detection areas A1 face four directions different from each other by 90 °.
- the infrared sensor 6 in the present embodiment is integrated with, for example, the corner panel 2a, and an attachment reference is provided at a corner inside the corner panel 2a (on the suction port 3 side), and each of the other three corner portions. It is attached so that it may become an inner corner using the attachment reference. Thereby, the infrared sensor 6 is attached so as to face four directions different by 90 ° at each corner.
- the attachment direction only needs to be different for each position where the infrared sensor 6 is attached, and the attachment position can be detected as long as the infrared sensor faces a direction that is different by an angle that can detect that the attachment direction is different. .
- the center of the detection area A1 of the infrared sensor 6 is the upper side of FIG. 4 (the side on the side where the wind direction vane 5a is arranged among the four sides of the rectangular decorative panel 2). It is attached to face the direction of The detection area A2, the detection area A3, and the detection area A4 are sequentially arranged every 90 ° in the counterclockwise direction with reference to the position. At this time, the wind direction vane 5 corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a. Therefore, it is not necessary to use the attachment position detection function of the infrared sensor 6.
- the center of the detection area A1 is attached so as to face the left direction in FIG. 4 (the direction of the side on which the wind direction vane 5b is disposed).
- the wind direction vane corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a
- the wind direction vane 5b which is the wind direction vane originally intended to correspond to the direction in which the detection area A1 is facing, Different.
- the center of the detection area A1 is attached so as to face downward in FIG. 4 (the direction of the side on which the wind direction vane 5c is disposed).
- the wind direction vane corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a, and the wind direction vane 5c, which is the wind direction vane originally intended to correspond to the direction in which the detection area A1 is directed, Different.
- the infrared sensor 6 is attached to the corner portion C4
- the center of the detection area A1 is attached so as to face downward in FIG. 4 (the direction of the side on which the wind direction vane 5d is disposed).
- the wind direction vane corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a, and the wind direction vane 5d, which is the wind direction vane originally intended to correspond to the direction in which the detection area A1 is directed, Different.
- the detection areas A2 to A4 are arranged every 90 ° in order in the counterclockwise direction. As described above, when the wind direction vane 5 corresponding to the detection area A is not correct, it is necessary to change the corresponding wind direction vane 5 using the attachment position detection function.
- FIG. 5 is a bottom view when the infrared sensor 6 is attached to the corner C2.
- a detection area when the infrared sensor 6 is attached to the corner C2 is shown.
- the infrared sensor 6 can be rotated 360 ° around a vertical axis by a motor (not shown) (360 ° can be rotated in the plane of FIG. 5), and a sensor with a certain viewing angle can rotate the vertical axis. It can rotate to the center and detect the temperature distribution around the entire circumference.
- the detection area of the infrared sensor 6 is divided every 90 ° in the circumferential direction, and four detection areas A1 to A4 are set as shown in FIG. In FIG.
- the detection areas A1 to A4 are divided into four by a line parallel to the diagonal direction of the quadrilateral decorative panel 2.
- the present invention is not limited to this.
- the correspondence table (Table 1 described later) between the detection area A and the wind direction vanes 5 changes.
- the number of divisions of the detection area A is not limited to four, and may be divided into a plurality of areas so that the temperature distribution on the floor surface around the air conditioner 50 can be understood.
- a correspondence table (Table 1 described later) between the detection area A and the wind direction vanes 5 is appropriately set.
- the detection area A of the infrared sensor 6 divided into four at 90 °, the attachment direction in four directions different from the infrared sensor 6 by 90 °, and the arrangement of the wind direction vanes 5 in which the blowing direction is set every 90 ° are arranged. Accordingly, the attachment position detection function and the detection area A and the wind direction vane 5 can be associated with each other without increasing the detection resolution of the infrared sensor 6 and without complicating the control.
- FIG. 6 is a flowchart of control in the present embodiment. Next, the operation will be described with reference to FIGS. The case where the mounting position of the infrared sensor 6 is not reset when the mounting position is changed from the corner C1 which is the standard mounting position of the infrared sensor 6 to the corner C2 as shown in FIG.
- the wind direction vane 5b should be driven to be in a down-blowing state.
- the remote controller 16 recognizes that the temperature of the detection area A1 is high.
- the wind direction vane 5a is driven.
- the remote controller 16 of the air conditioner 50 performs the control described below.
- Step S11 The mounting position detection function is executed and started from the remote controller 16.
- Step S12 It is determined whether the suction temperature detected by the suction temperature sensor 15 is equal to or higher than a specified value.
- Step S13 When the suction temperature detected by the suction temperature sensor 15 is equal to or higher than a specified value (for example, 24 ° C. or higher) (in the case of Y in step S12), the cooling operation is started.
- a specified value for example, 24 ° C. or higher
- Step S14 When the suction temperature detected by the suction temperature sensor 15 is lower than a specified value (for example, lower than 24 ° C.) (in the case of N in step S12), the heating operation is started.
- a specified value for example, lower than 24 ° C.
- Step S15 The temperature of the floor surface is measured for each detection area A1 to A4 by the infrared sensor 6, and recorded and stored as the temperature t0.
- the temperature t0 is a matrix of data obtained by dividing the floor surface into a plurality of pieces.
- Step S16 Only one of the wind direction vanes 5 (for example, the wind direction vane 5a) is blown downward to direct the blown airflow toward the floor.
- the wind direction vanes 5 for example, the wind direction vane 5a
- Step S17 After the specified time operation, the temperature of the floor surface is again measured by the infrared sensor 6, and recorded and stored as the temperature t1.
- the temperature t1 is a matrix of data obtained by dividing the floor surface into a plurality of pieces.
- Step S18 The temperature t0 measured in step S15 and the temperature t1 measured in step S17 are compared for each of the detection areas A1 to A4. Regardless of the cooling operation or the heating operation, the detection area having the largest absolute value of temperature change (the absolute value of the difference between t0 and t1) is specified. In addition, when the cooling operation is performed, the detection area A where the floor surface temperature is the lowest is specified, and when the heating operation is performed, the detection area A where the floor surface temperature is the highest is specified. The determination may be made by a method.
- Step S19 Which corner portion of the infrared sensor 6 is determined based on the identified detection area A based on Table 1. For example, when the wind direction vane 5a is in the downward blowing state and the temperature change in the detection area A2 becomes the largest, it is uniquely determined that the infrared sensor 6 is attached to the corner C2.
- Step S20 As determined in step S19, the detection area A of the infrared sensor 6 is associated with the wind direction vane 5 to be controlled.
- the infrared sensor 6 is set to be attached to the corner C1, and as shown in Table 1 above, the wind direction vane 5a operates for the detection area A1, and for the detection area A2,
- the wind direction vane 5b operates
- the wind direction vane 5c operates for the detection area A3
- the wind direction vane 5d operates for the detection area A4.
- This setting is written in the remote controller 16 (corresponding to the control device of the present invention).
- the temperature of the floor surface is changed by setting only one predetermined wind direction vane 5 to the bottom blowing state, and the area for detecting the temperature change is uniquely determined at each corner.
- the correspondence between the detection area A of the infrared sensor 6 and the control of each wind vane 5 can be taken.
- the accuracy of detection by the infrared sensor 6 can be improved, and the control for eliminating the temperature unevenness in the room by the detection temperature of the infrared sensor 6, the control for detecting the human body and applying the wind, and the control for avoiding the wind are accurate. Can be controlled.
- the infrared sensor 6 is provided with a human body detection function.
- Embodiment 2 FIG. In the first embodiment, only one of the wind direction vanes 5 is blown down, and the floor temperature detected by the infrared sensor 6 is compared to detect the mounting position of the infrared sensor 6 once. However, a case will be described in which a plurality of wind direction vanes 5 are blown down, the temperature is detected a plurality of times by the infrared sensor 6, and the floor temperature is compared.
- FIG. 7 is a flowchart of control in the present embodiment. The operation of the air conditioner 50 will be described with reference to FIG. Steps S21 to S25 are the same as steps S11 to S15 in the first embodiment.
- Step S26 The X direction vanes of the wind direction vanes 5 are blown downward, and the blown airflow is directed to the floor surface.
- X is any one of 1, 2, and 3.
- Step S27 After the specified time operation, the temperature of the floor surface is measured again by the infrared sensor 6 and stored as the temperature t1.
- the temperature t1 is a matrix of data obtained by dividing the floor surface into a plurality of pieces. If the measurement of t1 is the second time or later, the data matrix of t1 is overwritten.
- Step S28 The temperature t0 measured in step S25 and the temperature t1 measured in step S27 are compared for each of the detection areas A1 to A4. At this time, when the detection area A having the largest temperature difference between t0 and t1 has not reached the specified value (in the case of N), the process returns to step S27, and the temperature of the floor surface is measured again.
- Step S29 Regardless of either the cooling operation or the heating operation, the top X detection areas A having a large absolute value of the temperature change are specified. In the case of cooling operation, the top X detection areas A in which the floor temperature is low are specified, and in the case of heating operation, the top X detection areas A in which the floor temperature is high are identified. The detection area A may be specified.
- Step S30 According to the correspondence relationship between the X detection areas A specified in step S29 and the X wind direction vanes 5 that are blown down, which corner of the corners C1 to C4 the infrared sensor 6 is located from above Table 1 It is determined. This result is set as determination D1. For example, when the wind direction vane 5a and the wind direction vane 5b are blown downward, and the temperature change between the detection area A3 and the detection area A4 becomes large, the infrared sensor 6 is uniquely attached to the corner portion C3. .
- Step S31 The Y wind direction vanes 5 other than the wind direction vanes 5 that were previously blown down (X vanes that were blown down in step S26) are placed in the down blow state. However, Y is set to a value smaller than 4-X.
- Step S32 After the specified time operation, the temperature of the floor surface is measured again by the infrared sensor 6 and stored as the temperature t2.
- the temperature t2 is a matrix of data measured by dividing the floor surface into a plurality of parts. If the measurement of t2 is the second time or later, the data matrix of t2 is overwritten.
- Step S33 The temperature t1 measured in step S27 and the temperature t2 measured in step S32 are compared for each of the detection areas A1 to A4. At this time, when the detection area A having the largest temperature difference between t1 and t2 has not reached the specified value (in the case of N), the process returns to step S32, and the temperature of the floor surface is measured again. If the specified value has been reached (in the case of Y), the process proceeds to step S34.
- Step S34 Regardless of either the cooling operation or the heating operation, the top Y detection areas A having a large absolute value of the temperature change are specified.
- the top Y detection areas A where the floor surface temperature is low are specified, and when heating operation is performed, the top Y number where the floor surface temperature is high
- the detection area A may be specified.
- Step S35 From Table 1 above, which corner of the corners C1 to C4 the infrared sensor 6 is based on the correspondence between the Y detection areas A identified in step S34 and the Y wind direction vanes 5 that are blown down. It is determined. This result is set as determination D2. For example, when the wind direction vanes 5c and 5d are blown downward, and the temperature change between the detection area A1 and the detection area A2 increases, the infrared sensor 6 is uniquely attached when the corner C3 is attached.
- Step S36 The results of the determination D1 obtained in step S30 and the determination D2 obtained in step S36 are compared, and if the results match (in the case of Y), the process proceeds to step S37. If the results are different (N), the control from step S26 is repeated again.
- Step S37 The detection area A and the wind direction vane 5 are made to correspond correctly from the attachment position of the infrared sensor 6 determined above.
- the accuracy of detecting the correct mounting position can be increased by making the plurality of wind direction vanes 5 blow down and confirming the correspondence with the detection area A, as compared with the first embodiment.
- the detection of the detection area A can be performed accurately by changing the wind direction vane 5 in which the temperature is measured a plurality of times for comparison and changing the wind direction vane 5 to be in the lower blowing state.
- attachment position detection is performed accurately and the detection accuracy by the infrared sensor 6 can be increased.
- steps S31 to S36 can be omitted and controlled.
- control for executing the step of measuring the temperature by changing the wind direction vane 5 to be in the downward blowing state without repeating the temperature measurement of step S28 and step S33. Omission of these control steps can be set as appropriate according to the specifications of the air conditioner 50.
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
Description
例えば、特許文献1においては、赤外線センサによって出力される温度分布に基づいて空気調和機自身の室内における据付位置を認識し、効率的な空調運転を行う空気調和機が開示されている。
また、特許文献2においては、空気調和機に取り付けられている赤外線センサは、標準の取付位置が決まっており、空気調和機の取付位置を変更する際には目印等を用いて取付位置と空調運転の制御とを対応させる作業をする空気調和機が開示されている。
図1は、実施の形態1における空気調和機の全体構造を示す斜視図である。
本実施の形態に係る空気調和機は、天井に埋め込まれ、又は天井に吊り下げられた状態で設置されるものである。空気調和機50は、下面が開口された箱状のキャビネット1と、キャビネット1の下面開口部を覆うように取り付けられ、キャビネット1の開口より大きい四角形状の化粧パネル2とからなっている。
化粧パネル2は、その中央部にほぼ四角形状の空気の吸込み口3が設けられている。この吸込み口3の四辺には吸込み口3を囲むように、吹出し口4a~4d(以下、これらを一括して吹出し口4と記すことがある。)が設けられている。そして、吹出し口4a~4dのそれぞれには、上下方向に風向きを変更するための導風手段である、風向ベーン5a~5d(以下、これらを一括して単に風向ベーン5と記すことがある。)が設けられている。各吹出し口4から吹き出される風向きは、空気調和機50を下側から平面視したときに、90°ずつ四方向を向けられるように設定されている。化粧パネル2の角部には、コーナパネル2a~2dが着脱可能に取り付けられている。
キャビネット1の内部の天面の中心部には、出力軸を下方に向けて電動機7が設けられている。その出力軸には、遠心式の送風機8が取り付けられており、この送風機8を囲むようにして、熱交換器9が設置されている。また、熱交換器9の外周には熱交換器9を囲んで風路17が形成されている。風路17の外側には熱交換された空気と空気調和機50外の空気とを遮断する内カバー10が配置されている。熱交換器9の下部には、熱交換器9内の冷媒と空気との熱交換により発生する凝縮水を受け、かつ風路17の一部を構成するドレンパン11が設置されている。このドレンパン11の下部に化粧パネル2が配置されている。化粧パネル2に設けられた吸込み口3は、送風機8の吸込み口に連通している。内カバー10及びドレンパン11によって形成された風路17は、吹出し口4に連通している。
赤外線センサ6は、角部C1に取付られている。この状態は、製造元が化粧パネル2を出荷したとき(初期状態)の赤外線センサ6の標準取付位置を示している。
図4は、図3を簡略化し、赤外線センサ6が各角部に取り付けられた場合の検知エリアAの方向を示した図である。赤外線センサ6の検知エリアAは、検知エリアA1~A4(本願発明の分割領域に相当)に4分割されている。赤外線センサ6は、各角部に取り付けられた時の取付方向が決まっており、例えば、各角部に取り付けられた時に検知エリアA1がそれぞれ90°異なる4方向を向くように取り付けられる。本実施の形態における赤外線センサ6は、例えば、コーナパネル2aと一体化しており、コーナパネル2aの内側(吸込み口3側)の角に取付基準が設けられており、他の3つの各角部に取り付けられた時もその取付基準を用いて内側の角になるように取り付けられる。これにより、赤外線センサ6は、各角部で90°異なる4方向を向くように取り付けられることになる。
なお、取付方向は、赤外線センサ6の取り付ける位置ごとに異なっていれば良く、赤外線センサが取付方向が異なることが検知できる程度の角度だけ異なる方向を向いていれば、取付位置検出が可能である。
赤外線センサ6が角部C2に取り付けられている場合は、検知エリアA1の中心は図4の左方向(風向ベーン5bが配置されている側の辺の方向)に向くように取り付けられる。このとき、空気調和機50が検知した検知エリアA1に対応する風向ベーンは、風向ベーン5aとなっており、検知エリアA1の向いている方向に対し本来対応させたい風向ベーンである風向ベーン5bと異なる。
赤外線センサ6が角部C3に取り付けられている場合は、検知エリアA1の中心は図4の下方向(風向ベーン5cが配置されている側の辺の方向)に向くように取り付けられる。このとき、空気調和機50が検知した検知エリアA1に対応する風向ベーンは、風向ベーン5aとなっており、検知エリアA1の向いている方向に対し本来対応させたい風向ベーンである風向ベーン5cと異なる。
赤外線センサ6が角部C4に取り付けられている場合は、検知エリアA1の中心は図4の下方向(風向ベーン5dが配置されている側の辺の方向)に向くように取り付けられる。このとき、空気調和機50が検知した検知エリアA1に対応する風向ベーンは、風向ベーン5aとなっており、検知エリアA1の向いている方向に対し本来対応させたい風向ベーンである風向ベーン5dと異なる。
角部C2~C4に取り付けられている場合においても、検知エリアA2~A4は、反時計回り方向に順番に90°ごとに配置されている。上記のように、検知エリアAと対応する風向ベーン5が正しくない場合に取付位置検出機能を使用して、対応する風向ベーン5を変更する必要がある。
図5のように、赤外線センサ6の標準取付位置である角部C1から角部C2へ取付位置を変更した際に赤外線センサ6の取付位置を再設定しなかった場合について説明する。図5の状態で検知エリアA1の温度が高い時、本来ならば風向ベーン5bが駆動し、下吹き状態になるべきである。しかし、赤外線センサ6の取付位置を再設定しておらず、赤外線センサ6は角部C1に取り付けられていると認識しているため、リモコン16が検知エリアA1の温度が高いと認識したとき、風向ベーン5aが駆動してしまう。このような検知エリアAと駆動すべき風向ベーン5のミスマッチを解消するために、空気調和機50のリモコン16は、下記に説明する制御を行う。
リモコン16から取付位置検出機能を実行、始動する。
吸込み温度センサ15により検出される吸い込み温度が規定の値以上かを判定する。
吸込み温度センサ15によって検出される吸込み温度が規定の値以上(たとえば24℃以上)の場合(ステップS12でYの場合)は冷房運転を開始する。
吸込み温度センサ15によって検出される吸込み温度が規定の値よりも低い(たとえば24℃より低い)場合(ステップS12でNの場合)は暖房運転を開始する。
赤外線センサ6により床面の温度を検知エリアA1~A4ごとに計測し、温度t0として記録、保存する。ここで温度t0は床面を複数に分割し、計測したデータのマトリックスである。
風向ベーン5のうち1つのみ(例えば風向ベーン5a)を下吹きにして吹出し気流を床面へ向ける。
規定時間運転後、再度赤外線センサ6により床面の温度を計測し、温度t1として記録、保存する。ここで温度t1は床面を複数に分割し、計測したデータのマトリックスである。
ステップS15で計測した温度t0とステップS17で計測した温度t1を検知エリアA1~A4ごとに比較する。冷房運転、暖房運転のどちらかに関わらず、温度変化の絶対値(t0とt1との差の絶対値)が最も大きい検知エリアを特定する。
なお、冷房運転をしている場合は床面の温度が最も低くなった検知エリアAを特定し、暖房運転をしている場合は床面の温度が最も高くなった検知エリアAを特定するという方法で判定をしても良い。
特定された検知エリアAによって、赤外線センサ6はどの角部についているかは、表1を基に決定される。例えば、風向ベーン5aを下吹き状態にしており、検知エリアA2の温度変化が最も大きくなった場合は、赤外線センサ6が角部C2に取り付けられていると一意的にきまる。
ステップS19で決定されたように赤外線センサ6の検知エリアAと制御する風向ベーン5を対応させる。例えば、初期状態では赤外線センサ6は角部C1に取り付けられている設定であり、上記の表1のように、検知エリアA1に対しては風向ベーン5aが動作し、検知エリアA2に対しては風向ベーン5bが動作し、検知エリアA3に対しては風向ベーン5cが動作し、検知エリアA4に対しては風向ベーン5dが動作する設定になっている。例えば、図5のように角部C2に取り付けられているとステップS19で決定された場合、検知エリアA1に対しては風向ベーン5bが動作し、検知エリアA2に対しては風向ベーン5cが動作し、検知エリアA3に対しては風向ベーン5dが動作し、検知エリアA4に対しては風向ベーン5aが動作するように設定される。この設定は、リモコン16(本願発明の制御装置に相当)に書き込まれる。
以上の実施の形態1では、風向ベーン5のうち一つのみを下吹き状態にし、赤外線センサ6で検知した床面温度の比較は一度という条件で赤外線センサ6の取付位置を検出するようにしたものであるが、複数の風向ベーン5を下吹き状態にし、赤外線センサ6で複数回温度の検知をし、床面温度の比較をする場合について説明する。
図7は、本実施の形態における制御のフローチャートである。空気調和機50の動作について図7を用いて説明する。
ステップS21~S25までは実施の形態1におけるステップS11~S15と同様である。
風向ベーン5のうちX枚のベーンを下吹きにして吹出し気流を床面へ向ける。ただし、X=1、2、3のどれかの値である。
規定時間運転後、再度赤外線センサ6により床面の温度を計測し、温度t1として保存する。ここで温度t1は床面を複数に分割し、計測したデータのマトリックスである。t1の測定が2度目以降であればt1のデータマトリックスは上書きされる。
ステップS25で計測した温度t0とステップS27で計測した温度t1を検知エリアA1~A4ごとに比較する。このときt0とt1との温度差が最も大きい検知エリアAが規定値に達していない場合(Nの場合)、ステップS27に戻り、再び床面の温度を計測する。
冷房運転、暖房運転のどちらかに関わらず、温度変化の絶対値が大きい上位X個の検知エリアAを特定する。なお、冷房運転をしている場合は、床面の温度が低くなった上位X個の検知エリアAを特定し、暖房運転をしている場合は、床面の温度が高くなった上位X個の検知エリアAを特定してもよい。
ステップS29で特定されたX個の検知エリアA及び下吹きにしたX個の風向ベーン5との対応関係によって、赤外線センサ6が角部C1~C4のどの角部についているかが上記の表1から決定される。この結果を判定D1とする。例えば、風向ベーン5aと風向ベーン5bを下吹きにしており、検知エリアA3と検知エリアA4との温度変化が大きくなった場合は赤外線センサ6が角部C3に取り付けられていると一意的にきまる。
前回下吹き状態にした風向ベーン5(ステップS26で下吹き状態にしたX個のベーン)以外のY個の風向ベーン5を下吹き状態にする。ただし、Y=4-Xより小さい値とする。
規定時間運転後、再度赤外線センサ6により床面の温度を計測し、温度t2として保存する。ここで温度t2は床面を複数に分割し、計測したデータのマトリックスである。t2の測定が2度目以降であればt2のデータマトリックスは上書きされる。
ステップS27で計測した温度t1とステップS32で計測した温度t2を検知エリアA1~A4ごとに比較する。このときt1とt2との温度差が最も大きい検知エリアAが規定値に達していない場合(Nの場合)、ステップS32に戻り、再び床面の温度を計測する。規定値に達している場合(Yの場合)は、ステップS34へ進む。
冷房運転、暖房運転のどちらかに関わらず、温度変化の絶対値が大きい上位Y個の検知エリアAを特定する。なお、冷房運転をしている場合は、床面の温度が低くなった上位Y個の検知エリアAを特定し、暖房運転をしている場合は、床面の温度が高くなった上位Y個の検知エリアAを特定してもよい。
ステップS34で特定されたY個の検知エリアA及び下吹きにしたY個の風向ベーン5との対応関係によって、赤外線センサ6が角部C1~C4のどの角部についているかが上記の表1から決定される。この結果を判定D2とする。例えば、風向ベーン5cと5dを下吹きにしており、検知エリアA1と検知エリアA2との温度変化が大きくなった場合は赤外線センサ6が角部C3に取り付けられていると一意的にきまる。
ステップS30で求められた判定D1とステップS36で求められた判定D2との結果を比較し、結果が一致している場合(Yの場合)は、ステップS37へ進む。結果が異なる場合(Nの場合)は、再度ステップS26からの制御を繰り返す。
上記で決定された赤外線センサ6の取付位置から、検知エリアAと風向ベーン5とを正しく対応させる。
なお、ステップS31~S36は、省略して制御することもできる。また、ステップS28及びステップS33の温度測定の繰り返しを省略し、下吹き状態にする風向ベーン5を変更して温度測定をするステップを実行する制御を行っても良い。これらの制御ステップの省略は、空気調和機50の仕様に合わせて適宜設定することができる。
Claims (5)
- 熱交換器及び送風機が内蔵され、下面が開口されて天井に設置されるキャビネットと、
中心部に吸込み口を有し、前記キャビネットの下面の開口部を覆うよう設置された、前記キャビネットの開口部より大型の四角形状の化粧パネルと、
該吸込み口の周りの4箇所に、前記化粧パネルの四辺に沿って配置された吹出し口と、
該吹出し口に設けられ、それぞれの該吹出し口ごとに独立して角度を調整できる風向ベーンと、
周方向に4分割した分割領域ごとに床面温度を検知できる赤外線センサと、
制御装置と、を備え、
前記赤外線センサは、
前記化粧パネルの4箇所の角部の何れかに取り付けられ、
該赤外線センサが取り付けられる角部によって、該赤外線センサの取付基準の向く方向がそれぞれ異なるように構成され、
前記制御装置は、
1つの前記吹出し口から床面に向けて気流を吹き出すように前記風向ベーンを制御し、暖房運転又は冷房運転をさせ、前記赤外線センサにより温度検知された、運転開始前の床面温度と運転中の床面温度との差が規定値以上である前記赤外線センサの前記分割領域、床面に向けて気流を吹き出すようにした前記風向ベーンの配置位置、及び前記赤外線センサの前記取付基準から前記赤外線センサの取付位置を判定し、床面温度差が規定値以上である前記分割領域と制御する前記風向ベーンを対応させる、空気調和機。 - 前記制御装置は、
さらに1つ又は2つの前記吹出し口の前記風向ベーンを床面に向けて気流を吹きだす制御をする、請求項1に記載の空気調和機。 - 前記制御装置は、
前記床面温度差が規定値未満である場合に、再度前記赤外線センサによる前記温度検知を行う、請求項1又は2記載の空気調和機。 - 前記制御装置は、
前記判定を行った後、さらに前記判定の時に制御した前記風向ベーンと異なる前記風向ベーンから床面に向けて気流を吹きだすように制御し、前記赤外線センサにより温度検知された、前記判定に用いた運転中の床面温度と現在運転中の床面温度との差が規定値以上である前記赤外線センサの前記分割領域、床面に向けて気流を吹き出すようにした前記風向ベーンの配置位置、及び前記赤外線センサの前記取付基準から前記赤外線センサの取付位置を再判定し、前記判定と前記再判定との結果が一致した場合に前記分割領域と制御する前記風向ベーンを対応させ、前記判定と前記再判定との結果が一致しない場合には再度前記分割領域の温度検知から制御を繰り返す、請求項1~3の何れか1項に記載の空気調和機。 - 前記赤外線センサには、人体検知機能が設けられている、請求項1~4の何れか1項に記載の空気調和機。
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| JPWO2018150535A1 (ja) * | 2017-02-17 | 2019-11-07 | 三菱電機株式会社 | 室内機および空気調和装置 |
| JP2020186823A (ja) * | 2019-05-10 | 2020-11-19 | 三菱電機株式会社 | 制御装置、制御システム、及び制御方法 |
| WO2021024421A1 (ja) * | 2019-08-07 | 2021-02-11 | 三菱電機株式会社 | 空気調和機 |
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| WO2018087909A1 (ja) * | 2016-11-14 | 2018-05-17 | 三菱電機株式会社 | 空気調和機の室内機 |
| CN106885351A (zh) * | 2017-04-20 | 2017-06-23 | 广东高村空调制造有限公司 | 一种中央空调自动化控制系统 |
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| EP3578887A1 (en) * | 2018-06-07 | 2019-12-11 | Koninklijke Philips N.V. | An air quality control system and method |
| KR102697590B1 (ko) * | 2018-12-18 | 2024-08-21 | 엘지전자 주식회사 | 공기조화기의 천장형 실내기 |
| DE112019007616T5 (de) * | 2019-08-08 | 2022-06-02 | Mitsubishi Electric Corporation | Klimatisierungsvorrichtung |
| CN110513842B (zh) * | 2019-08-28 | 2020-12-08 | 青岛海信日立空调系统有限公司 | 一种确定红外传感器的位置的方法及装置 |
| JP7497184B2 (ja) * | 2020-03-25 | 2024-06-10 | 日本キヤリア株式会社 | 空気調和機の室内ユニット |
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- 2015-03-12 JP JP2017504526A patent/JP6359176B2/ja not_active Expired - Fee Related
- 2015-03-12 US US15/528,787 patent/US20170336082A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2018150535A1 (ja) * | 2017-02-17 | 2019-11-07 | 三菱電機株式会社 | 室内機および空気調和装置 |
| JP2020186823A (ja) * | 2019-05-10 | 2020-11-19 | 三菱電機株式会社 | 制御装置、制御システム、及び制御方法 |
| JP7308653B2 (ja) | 2019-05-10 | 2023-07-14 | 三菱電機株式会社 | 制御システム |
| WO2021024421A1 (ja) * | 2019-08-07 | 2021-02-11 | 三菱電機株式会社 | 空気調和機 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3270071B1 (en) | 2018-10-03 |
| CN105972749B (zh) | 2018-12-25 |
| JPWO2016143122A1 (ja) | 2017-06-29 |
| US20170336082A1 (en) | 2017-11-23 |
| EP3270071A4 (en) | 2018-01-17 |
| CN105972749A (zh) | 2016-09-28 |
| JP6359176B2 (ja) | 2018-07-18 |
| CN205448175U (zh) | 2016-08-10 |
| EP3270071A1 (en) | 2018-01-17 |
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