EP3270071B1 - Klimaanlage - Google Patents

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Publication number
EP3270071B1
EP3270071B1 EP15868660.0A EP15868660A EP3270071B1 EP 3270071 B1 EP3270071 B1 EP 3270071B1 EP 15868660 A EP15868660 A EP 15868660A EP 3270071 B1 EP3270071 B1 EP 3270071B1
Authority
EP
European Patent Office
Prior art keywords
air
infrared sensor
floor surface
air direction
conditioning apparatus
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.)
Not-in-force
Application number
EP15868660.0A
Other languages
English (en)
French (fr)
Other versions
EP3270071A4 (de
EP3270071A1 (de
Inventor
Masahiro Kamijo
Kiyoshi Yoshimura
Masahiko Takagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP3270071A4 publication Critical patent/EP3270071A4/de
Publication of EP3270071A1 publication Critical patent/EP3270071A1/de
Application granted granted Critical
Publication of EP3270071B1 publication Critical patent/EP3270071B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • 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
    • F24F11/50—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
    • 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
    • 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
    • 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
    • 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-conditioning apparatus, and particularly to a setting of an installation position of an infrared sensor of an air-conditioning apparatus.
  • Patent Literature 1 discloses an air-conditioning apparatus that performs an efficient air-conditioning operation by recognizing a mounting position of the air-conditioning apparatus itself in a room based on a temperature distribution output by an infrared sensor.
  • Patent Literature 2 discloses an air-conditioning apparatus in which an infrared sensor installed thereto has a fixed standard installation position. When the installation position of the air-conditioning apparatus is changed, an operation of making correspondence between the installation position and a control of an air-conditioning operation is performed by using a mark or the like.
  • the air-conditioning apparatus in Patent Literature 1 has a fixed installation position of the infrared sensor, and thus has a problem that the installation position of the infrared sensor in the air-conditioning apparatus is unchangeable.
  • Patent Literature 2 has a problem that a person needs to memorize the installation position and perform an operation of setting and registering the information of the installation position with a remote controller, which is troublesome and creates a possibility of erroneous setting.
  • the present invention has been made to solve the problems as described above, and aims to provide an air-conditioning apparatus capable of automatically determining an installation position of an infrared sensor and facilitating making correspondence between an air direction control vane and a temperature detection area.
  • an air-conditioning apparatus includes: a cabinet including therein a heat exchanger and a fan, having a lower surface with an opening, and installed to a ceiling; a square decorative panel larger than the opening of the cabinet, having an air inlet in a central part thereof, and installed to cover the opening of the lower surface of the cabinet; air outlets disposed at four places around the air inlet along four sides of the decorative panel; air direction vanes provided in the air outlets, and independently adjustable in angle for the respective air outlets; an infrared sensor capable of detecting a floor surface temperature for each of divided areas quartered in a circumferential direction; and a controller.
  • the infrared sensor is installed to one of four corners of the decorative panel, and is configured such that a facing direction of an installation reference of the infrared sensor varies depending on each of four corners installed with the infrared sensor.
  • the controller controls one of the air direction vanes so as to blow out an airflow toward a floor surface from one of the air outlets and the air-conditioning apparatus to perform a heating operation or a cooling operation, performs a determination to determine an installation position of the infrared sensor from one of the divided areas in which a temperature difference between the floor surface temperature before an operation of the one of the air direction vanes and the floor surface temperature during the operation of the one of the air direction vanes detected with the infrared sensor equals or exceeds a specified value, a disposition position of the one of the air direction vanes set to blow out the airflow toward the floor surface, and the installation reference of the infrared sensor, and makes the one of the divided areas in which the difference between the floor surface temperatures equals or exceeds the specified value correspond to the one of the
  • the operation of making correspondence between the detection range of the infrared sensor and the air infrared sensor therefore making settings easy, preventing erroneous setting, and obtaining correct operations of the infrared sensor and air direction control.
  • Embodiment 1 is not an embodiment of the invention, but helpful to understand certain aspects thereof.
  • Fig. 1 is a perspective view illustrating an overall structure of an air-conditioning apparatus in Embodiment 1.
  • the air-conditioning apparatus according to Embodiment 1 is installed as concealed in a ceiling or suspended from a ceiling.
  • An air-conditioning apparatus 50 is formed of a box-shaped cabinet 1 having a lower surface with an opening and a square decorative panel 2 installed to cover the opening of the lower surface of the cabinet 1 and larger than the opening of the cabinet 1.
  • the decorative panel 2 is provided with a substantially square air inlet 3 at a central part thereof. Air outlets 4a to 4d (these will hereinafter occasionally be
  • the decorative panel 2 is provided with a substantially square air inlet 3 at a central part thereof.
  • Air outlets 4a to 4d (these will hereinafter occasionally be described collectively as the air outlets 4) are provided around four sides of this air inlet 3 to surround the air inlet 3.
  • the air outlets 4a to 4d are respectively provided with air direction vanes 5a to 5d (these will hereinafter occasionally be described collectively and simply as the air direction vanes 5), which are air guiding means for changing the air direction to the upward or downward direction.
  • the directions of air blown out of the respective air outlets 4 are set to face four directions spaced at intervals of 90 degrees in a plan view of the air-conditioning apparatus 50 as viewed from below.
  • Corner panels 2a to 2d are attachably and detachably installed to corners of the decorative panel 2.
  • one of corners (corner portions) of a lower surface of the decorative panel 2 (a corner C1, for example) is installed with an infrared sensor 6 that detects radiation temperatures in a plurality of areas of airflows blown out of the air outlets 4 or detects presence of a person with a human body sensor.
  • the installation position of the infrared sensor 6 is not limited to the illustrated position.
  • the infrared sensor 6 may be installed at a preferable position in any one of corners C1 to C4 of the lower surface of the decorative panel 2 in accordance with the layout of a room and other factors.
  • Fig. 2 is a diagram illustrating a cross section of an I-I part of the air-conditioning apparatus 50 in Fig. 1 .
  • An electric motor 7 is provided at a central part of a top surface inside the cabinet 1, with an output shaft facing down.
  • the output shaft is installed with a centrifugal fan 8, and a heat exchanger 9 is installed to surround this fan 8.
  • an air passage 17 is formed around the outer circumference of the heat exchanger 9 to surround the heat exchanger 9.
  • An internal cover 10 is disposed outside the air passage 17 to separate heat-exchanged air from the air outside the air-conditioning apparatus 50.
  • a drain pan 11 is disposed under the heat exchanger 9 to receive condensed water generated by heat exchange between air and refrigerant in the heat exchanger 9 and form a part of the air passage 17.
  • the decorative panel 2 is disposed under this drain pan 11.
  • the air inlet 3 provided in the decorative panel 2 communicates with an air inlet of the fan 8.
  • the air passage 17 formed by the internal cover 10 and the drain pan 11 communicates with the air outlets 4.
  • An air filter 12 for preventing dust and other substances from entering the interior of the air-conditioning apparatus 50 is installed to the air inlet 3 provided in the decorative panel 2, and a grille 13 supporting the air filter and functioning as a blind is provided outside this air filter 12. Further, a bell mouth 14 for smoothly guiding the air suctioned from the air inlet 3 to the fan 8 and a suction temperature sensor 15 for detecting a suction temperature are provided between the air filter 12 and the fan 8.
  • the decorative panel 2 is connected to a remote controller 16 (equivalent to a controller of the invention of the present application), and the remote controller 16 controls the operation of the air-conditioning apparatus 50.
  • the remote controller 16 performs an operation control of the electric motor 7, that is, an operation control of the fan 8 and operation controls such as the setting of the opening degrees of the air direction vanes 5 in the air outlets 4.
  • the remote controller 16 is formed of a control unit 19 and other units.
  • the remote controller 16 may further include a display unit 20 and an operation unit 18. This remote controller 16 is not limited to a wired one, and may be configured to wirelessly emit electrical signals. If the installation position of the infrared sensor 6 is changed in the air-conditioning apparatus 50, this remote controller 16 is operated to detect the installation position.
  • Fig. 3 is a bottom view of the air-conditioning apparatus 50 in Fig. 1 .
  • the infrared sensor 6 is installed to the corner C1.
  • This state illustrates a standard installation position of the infrared sensor 6 at the time of shipment of the decorative panel 2 by a manufacturer (an initial state).
  • Fig. 4 is a diagram simplifying Fig. 3 and illustrating directions of a detection area A in a case in which the infrared sensor 6 is installed to each of the corners.
  • the detection area A of the infrared sensor 6 is quartered into detection areas A1 to A4 (equivalent to divided areas of the invention of the present application).
  • the infrared sensor 6 has a fixed installation direction according to each corner when installed to one of the corners. For example, assuming the infrared sensor 6 is installed to each of the corners, the detection area A1 faces four directions different from one another every 90 degrees.
  • the infrared sensor 6 in Embodiment 1 is, for example, integrated with the corner panel 2a, and an installation reference is provided at a corner of an inside (on the side of the air inlet 3) of the corner panel 2a.
  • the infrared sensor 6 is also installed to be located at the corner of the inside with the use of the installation reference.
  • the infrared sensor 6 is thereby installed to face the four directions different from one another every 90 degrees at the respective corners.
  • the installation direction is different for each position at which the infrared sensor 6 is installed, and the installation position is detectable if the infrared sensor faces directions different from one another by an angle allowing the infrared sensor to detect that the installation direction is different.
  • the infrared sensor 6 when the infrared sensor is installed to the corner C1, the infrared sensor 6 is installed such that the center of the detection area A1 of the infrared sensor 6 faces the upward direction in Fig. 4 (the direction of a side of four sides of the square decorative panel 2 disposed with the air direction vane 5a).
  • a detection area A2 With the position used as a reference, a detection area A2, a detection area A3, and a detection area A4 are sequentially arranged in the counterclockwise direction at intervals of 90 degrees.
  • the air direction vane 5 corresponding to the detection area A1 detected by the air-conditioning apparatus 50 is the air direction vane 5a. It is therefore unnecessary to use an installation position detection function of the infrared sensor 6.
  • the infrared sensor 6 When the infrared sensor 6 is installed to the corner C2, the infrared sensor 6 is installed such that the center of the detection area A1 faces the left direction in Fig. 4 (the direction of a side disposed with the air direction vane 5b).
  • the air direction vane corresponding to the detection area A1 detected by the air-conditioning apparatus 50 is the air direction vane 5a, which is different from the air direction vane 5b as the air direction vane actually desired to be made to correspond to the facing direction of the detection area A1.
  • the infrared sensor 6 When the infrared sensor 6 is installed to the corner C3, the infrared sensor 6 is installed such that the center of the detection area A1 faces the downward direction in Fig. 4 (the direction of a side disposed with the air direction vane 5c).
  • the air direction vane corresponding to the detection area A1 detected by the air-conditioning apparatus 50 is the air direction vane 5a, which is different from the air direction vane 5c as the air direction vane actually desired to be made to correspond to the facing direction of the detection area A1.
  • the infrared sensor 6 When the infrared sensor 6 is installed to the corner C4, the infrared sensor 6 is installed such that the center of the detection area A1 faces the downward direction in Fig. 4 (the direction of a side disposed with the air direction vane 5d).
  • the air direction vane corresponding to the detection area A1 detected by the air-conditioning apparatus 50 is the air direction vane 5a, which is different from the air direction vane 5d as the air direction vane actually desired to be made to correspond to the facing direction of the detection area A1.
  • the detection areas A2 to A4 are also sequentially arranged in the counterclockwise direction at intervals of 90 degrees when the infrared sensor 6 is installed to the corners C2 to C4. If the air direction vane 5 corresponding to the detection area A is different from the actually desired one, as described above, it is necessary to change the corresponding air direction vane 5 by using the installation position detection function.
  • Fig. 5 is a bottom view when the infrared sensor 6 is installed to the corner C2.
  • This drawing illustrates the detection areas when the infrared sensor 6 is installed to the corner C2.
  • the infrared sensor 6 is rotatable about an axis in the vertical direction by 360 degrees (rotatable by 360 degrees in the plane of Fig. 5 ) by a motor (not illustrated).
  • the sensor with a certain viewing angle rotates about the axis in the vertical direction and is capable of detecting, for example, a temperature distribution around the entire circumference.
  • the detection area of the infrared sensor 6 is divided at intervals of 90 degrees in the circumferential direction, and the four detection areas A1 to A4 are set, as illustrated in Fig. 5 .
  • the division into the detection areas A1 to A4 is performed by quartering with lines parallel to the directions of the diagonals of the square decorative panel 2, but is not limited thereto. If the division is performed in other directions, however, the relationship between the detection area A and the direction of the air blown out by the air direction vane 5 changes. Thereby, a correspondence table (later-described Table 1) which shows relationship between the detection areas A and the air direction vanes 5 is changed. The correspondence table is used in determining the installation position of the infrared sensor by the installation position detection function of the infrared sensor 6. Further, the division number of the detection areas A is not limited to four.
  • the detection area A is divided into a plurality of areas so that the temperature distribution on a floor surface or the like around the air-conditioning apparatus 50 is figured out.
  • the correspondence table (later-described Table 1) showing the relationship between the detection areas A and the air direction vanes 5 is appropriately set in accordance with the division of the area.
  • Embodiment 1 with the detection areas A of the infrared sensor 6 obtained by quartering at 90 degrees, the four installation directions of the infrared sensor 6 different from one another every 90 degrees, and the arrangement of the air direction vanes 5 with blowout directions set at intervals of 90 degrees, it is possible to make correspondence between the installation position detection function and the detection areas A and the air direction vanes 5, without increasing the resolution of detection of the infrared sensor 6 or complicating a control.
  • Fig. 6 is a flowchart of a control in Embodiment 1. An operation will be described with reference to Fig. 5 and Fig. 6 .
  • the corner C1 is the standard installation position of the infrared sensor 6.
  • the air direction vane 5b should actually be driven and placed in a downward blowing state.
  • the installation position of the infrared sensor 6 has not been reset, and the infrared sensor 6 is recognized as installed to the corner C1.
  • the air direction vane 5a is driven when the remote controller 16 recognizes that the temperature of the detection area A1 is high.
  • the remote controller 16 of the air-conditioning apparatus 50 performs control processes as described below to eliminate such mismatch between the detection area A and the air direction vane 5 to be driven.
  • the installation position detection function is executed and started from the remote controller 16.
  • suction temperature detected by the suction temperature sensor 15 equals or exceeds the specified value (equals or exceeds 24 degrees Celsius, for example) (in the case of Y at step S12), a cooling operation is started.
  • the suction temperature detected by the suction temperature sensor 15 is lower than the specified value (lower than 24 degrees Celsius, for example) (in the case of N at step S12), a heating operation is started.
  • the temperature of the floor surface is measured with the infrared sensor 6 for each of the detection areas A1 to A4, and is recorded and saved as a temperature t0.
  • the temperature t0 is a matrix of data measured for the floor surface divided into a plurality of parts.
  • Only one of the air direction vanes 5 (the air direction vane 5a, for example) is set to downward blowing to direct a blown-out airflow toward the floor surface.
  • the temperature of the floor surface is measured again with the infrared sensor 6, and is recorded and saved as a temperature t1.
  • the temperature t1 is a matrix of data measured for the floor surface divided into a plurality of parts.
  • the temperature t0 measured at step S15 and the temperature t1 measured at step S17 are compared for each of the detection areas A1 to A4.
  • the detection area with the largest absolute value of the temperature change (absolute value of the difference between t0 and t1) is identified, regardless of the cooling operation or the heating operation.
  • the determination may be made by a method of identifying the detection area A with the lowest temperature of the floor surface when the cooling operation is being performed, or identifying the detection area A with the highest temperature of the floor surface when the heating operation is being performed.
  • the detection area A of the infrared sensor 6 and the air direction vane 5 to be controlled are made to correspond to each other as determined at step S19.
  • settings are made such that the infrared sensor 6 is installed to the corner C1.
  • the air direction vane 5a operates for the detection area A1
  • the air direction vane 5b operates for the detection area A2
  • the air direction vane 5c operates for the detection area A3
  • the air direction vane 5d operates for the detection area A4.
  • settings are made such that the air direction vane 5b operates for the detection area A1, the air direction vane 5c operates for the detection area A2, the air direction vane 5d operates for the detection area A3, and the air direction vane 5a operates for the detection area A4.
  • These settings are written in the remote controller 16 (equivalent to the controller of the invention of the present application).
  • the installation position of the infrared sensor 6 is detected under the condition that only one of the air direction vanes 5 is set in the downward blowing state and the comparison of floor surface temperatures detected with the infrared sensor 6 is performed once.
  • a description will be given of a case in which a plurality of the air direction vanes 5 are set in the downward blowing state, and the temperature is detected multiple times with the infrared sensor 6 and floor surface temperatures are compared.
  • Fig. 7 is a flowchart of a control in Embodiment 2. An operation of the air-conditioning apparatus 50 will be described with reference to Fig. 7 .
  • Steps S21 to S25 are similar to steps S11 to S15 in Embodiment 1.
  • X vane(s) is/are set to downward blowing to direct the blown-out airflow toward the floor surface.
  • X is one of 1, 2, or 3.
  • the temperature of the floor surface is measured again with the infrared sensor 6, and is saved as the temperature t1.
  • the temperature t1 is a matrix of data measured for the floor surface divided into a plurality of parts. In the case of the second or subsequent measurement of t1, the data matrix of t1 is overwritten.
  • the temperature t0 measured at step S25 and the temperature t1 measured at step S27 are compared for each of the detection areas A1 to A4. In this step, if the temperature difference between t0 and t1 of the detection area A where the temperature difference between t0 and t1 is the largest does not reach a specified value (in the case of N), the procedure returns to step S27 to measure again the temperature of the floor surface.
  • the top X detection area(s) A with the largest absolute value(s) of the temperature change is/are identified, regardless of the cooling operation or the heating operation.
  • the top X detection area(s) A with the lowest temperature(s) of the floor surface may be identified when the cooling operation is being performed, and the top X detection area(s) A with the highest temperature(s) of the floor surface may be identified when the heating operation is being performed.
  • Y air direction vane(s) 5 other than the air direction vane(s) 5 set in the downward blowing state last time (the X vane(s) set in the downward blowing state at step S26) is/are set in the downward blowing state.
  • Y is smaller than 4-X.
  • the temperature of the floor surface is measured again with the infrared sensor 6, and is saved as a temperature t2.
  • the temperature t2 is a matrix of data measured for the floor surface divided into a plurality of parts. In the case of the second or subsequent measurement of t2, the data matrix of t2 is overwritten.
  • the temperature t1 measured at step S27 and the temperature t2 measured at step S32 are compared for each of the detection areas A1 to A4. In this step, if the temperature difference between t1 and t2 of the detection area A where the temperature difference between t1 and t2 is the largest does not reach a specified value (in the case of N), the procedure returns to step S32 to measure again the temperature of the floor surface. If the temperature difference reaches the specified value (in the case of Y), the procedure proceeds to step S34.
  • the top Y detection area(s) A with the largest absolute value of the temperature change is/are identified, regardless of the cooling operation or the heating operation.
  • the top Y detection area(s) A with the lowest temperature(s) of the floor surface may be identified when the cooling operation is being performed, and the top Y detection area(s) A with the highest temperature(s) of the floor surface may be identified when the heating operation is being performed.
  • step S30 The result of the determination D1 obtained at step S30 and the result of the determination D2 obtained at step S36 are compared. If the results match (in the case of Y), the procedure proceeds to step S37. If the results are different (in the case of N), the control processes from step S26 are repeated again.
  • a plurality of the air direction vanes 5 are set to downward blowing, and the correspondence relationship thereof with the detection areas A is checked, thereby making it possible to enhance the precision of detecting the correct installation position as compared with Embodiment 1. Further, it is possible to detect the detection area A accurately by repeating the steps of the multiple temperature measurements and comparisons, that is, by repeating the temperature measurements based on alternation of the air direction vane(s) 5 to be set in the downward blowing state. Consequently, the installation position is accurately detected, making it possible to enhance the precision of detection by the infrared sensor 6.
  • the control may be performed with steps S31 to S36 omitted. Further, a control may be performed in which the repetition of the temperature measurement at step S28 and step S33 is omitted and a step of changing the air direction vane(s) 5 to be set in the downward blowing is executed, and then a step of measuring the temperature is executed.
  • the omission of these control processes may be appropriately set in accordance with specifications of the air-conditioning apparatus 50.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Claims (5)

  1. Klimaanlage (50), umfassend:
    ein Gehäuse (1), das einen Wärmetauscher (9) und einen Lüfter (8) darin enthält, eine untere Oberfläche mit einer Öffnung hat und an einer Decke installierbar ist;
    eine rechteckige, dekorative Blende (2), die größer ist als die Öffnung des Gehäuses (1), einen Lufteinlass (3) in einem mittleren Teil davon hat und so installiert ist, dass die Öffnung der unteren Oberfläche des Gehäuses (1) bedeckt ist;
    Luftauslässe (4), die an vier Stellen um den Lufteinlass (3) entlang vier Seiten der dekorativen Blende (2) angeordnet sind;
    Luftleitflügel (5a bis 5d), die in den Luftauslässen (4) bereitgestellt sind und für die entsprechenden Luftauslässe (4) unabhängig voneinander im Winkel anpassbar sind;
    einen Infrarotsensor (6), der in der Lage ist, eine Bodenoberflächentemperatur für jeden der aufgeteilten Bereiche (A1 bis A4), die in einer Umfangsrichtung gevierteilt sind, zu detektieren; und
    eine Steuereinheit (16), wobei
    der Infrarotsensor (6) an einer der vier Ecken (C1 bis C4) der dekorativen Blende (2) installiert ist und so konfiguriert ist, dass eine Blickrichtung einer Installationsreferenz des Infrarotsensors (6) in Abhängigkeit von jeder der vier Ecken, an der der Infrarotsensor (6) installiert ist, variiert und
    die Steuereinheit (16)
    so zur Steuerung eines der Luftleitflügel (5a bis 5d) konfiguriert, dass ein Luftstrom aus einem der Luftauslässe (4) zu einer Bodenoberfläche ausgeblasen wird, und die Klimaanlage einen Erwärmungsbetrieb oder einen Kühlbetrieb durchführt,
    konfiguriert ist zum Durchführen einer Bestimmung, um eine Installationsposition des Infrarotsensors (6) aus der Installationsreferenz des Infrarotsensors (6) zu bestimmen,
    dadurch gekennzeichnet, dass
    die Steuereinheit (16) konfiguriert ist zum Durchführen der Bestimmung zusätzlich aus:
    einem der aufgeteilten Bereiche (A1 bis A4), in welchem eine Temperaturdifferenz zwischen der Bodenoberflächentemperatur vor einem Betrieb des einen der Luftleitflügel (5a bis 5d) und der Bodenoberflächentemperatur während des Betriebs des einen der Luftleitflügel (5a bis 5d), detektiert durch den Infrarotsensor (6), die größte ist und einem bestimmten Wert gleicht oder diesen überschreitet, und der Installationsreferenz des Infrarotsensors (6); und
    konfiguriert ist, einen der aufgeteilten Bereiche (A1 bis A4), in welchem die Temperaturdifferenz die größte ist und dem bestimmten Wert gleicht oder diesen überschreitet, mit einem der zu steuernden Luftleitflügel (5a bis 5d) entsprechend zu machen.
  2. Klimaanlage (50) nach Anspruch 1, wobei die Steuereinheit (16) ferner konfiguriert ist, eine Steuerung eines anderen oder zwei anderen der Luftleitflügel (5a bis 5d) in den Luftauslässen (4) durchzuführen, um den Luftstrom zur Bodenoberfläche auszublasen.
  3. Klimaanlage (50) nach Anspruch 1 oder 2, wobei, falls die Temperaturdifferenz unter dem spezifizierten Wert ist, die Steuereinheit (16) wieder ferner dazu konfiguriert ist, eine Detektion der Bodenoberflächentemperatur mit dem Infrarotsensor (6) durchzuführen.
  4. Klimaanlage (50) nach einem der Ansprüche 1 bis 3, wobei, nach Durchführen der Bestimmung, die Steuereinheit (16) ferner konfiguriert ist, eine Steuerung durchzuführen, um den Luftstrom zur Bodenoberfläche von einem oder mehreren der Luftleitflügel (5a bis 5d), der/die sich von dem einen der Luftleitflügel (5a bis 5d) unterscheidet/unterscheiden, der bei der Bestimmung gesteuert wird, auszublasen,
    ferner konfiguriert ist zum Durchführen einer neuen Bestimmung, um die Installationsposition des Infrarotsensors (6) neu zu bestimmen aus einem oder mehreren der aufgeteilten Bereiche (A1 bis A4), in welchem/welchen eine Temperaturdifferenz zwischen der Bodenoberflächentemperatur während des Betriebs des einen der Luftleitflügel (5a bis 5d), der bei der Bestimmung verwendet wird, und der Bodenoberflächentemperatur während eines aktuellen Betriebs, detektiert durch den Infrarotsensor (6), die größte ist und einem bestimmten Wert gleicht oder diesen überschreitet, einer Anordnungsposition oder Anordnungspositionen des einen oder der mehreren Luftleitflügel (5a bis 5d), die eingestellt sind, um den Luftstrom zur Bodenoberfläche auszublasen, und der Installationsreferenz des Infrarotsensors (6),
    konfiguriert ist, jeden der aufgeteilten Bereiche (A1 bis A4) jedem der Luftleitflügel (5a bis 5d), die zu steuern sind, entsprechend zu machen, falls ein Ergebnis der Bestimmung und ein Ergebnis der neuen Bestimmung übereinstimmen, und
    konfiguriert ist, jeden Prozess ab Detektion der Bodenoberflächentemperatur der aufgeteilten Bereiche (A1 bis A4) erneut zu wiederholen, falls das Ergebnis der Bestimmung und das Ergebnis der neuen Bestimmung nicht übereinstimmen.
  5. Klimaanlage (50) nach einem der Ansprüche 1 bis 4, wobei der Infrarotsensor (6) mit einer Funktion zur Detektion eines menschlichen Körpers ausgestattet ist.
EP15868660.0A 2015-03-12 2015-03-12 Klimaanlage Not-in-force EP3270071B1 (de)

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CN108758963B (zh) * 2018-04-20 2021-05-28 邯郸美的制冷设备有限公司 空调器安装位置确定方法、装置、空调器及可读存储介质
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US20170336082A1 (en) 2017-11-23
CN205448175U (zh) 2016-08-10
JP6359176B2 (ja) 2018-07-18
WO2016143122A1 (ja) 2016-09-15
CN105972749A (zh) 2016-09-28
JPWO2016143122A1 (ja) 2017-06-29
EP3270071A4 (de) 2018-01-17
CN105972749B (zh) 2018-12-25
EP3270071A1 (de) 2018-01-17

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