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WO2014045867A1 - 空調室内機 - Google Patents

空調室内機 Download PDF

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Publication number
WO2014045867A1
WO2014045867A1 PCT/JP2013/073675 JP2013073675W WO2014045867A1 WO 2014045867 A1 WO2014045867 A1 WO 2014045867A1 JP 2013073675 W JP2013073675 W JP 2013073675W WO 2014045867 A1 WO2014045867 A1 WO 2014045867A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
coanda
wind direction
blade
airflow
Prior art date
Application number
PCT/JP2013/073675
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
隆滋 森
裕記 藤岡
貴裕 仲田
松原　篤志
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
Priority to ES13838929T priority Critical patent/ES2796740T3/es
Priority to EP13838929.1A priority patent/EP2918931B1/en
Priority to CN201380048293.4A priority patent/CN104641186B/zh
Publication of WO2014045867A1 publication Critical patent/WO2014045867A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • 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
    • 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
    • F24F11/30—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
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/28—Details or features not otherwise provided for using the Coanda effect

Definitions

  • the present invention relates to an air conditioning indoor unit.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2004-108652
  • An object of the present invention is to provide an air-conditioning indoor unit that prevents the occupant from being blown by air at the initial stage of cooling operation and gives the occupant a cool feeling after the room temperature is stabilized.
  • An air-conditioning indoor unit is an air-conditioning indoor unit that can change the direction of conditioned air blown from a blow-out port in a predetermined direction, and includes a wind direction adjusting blade and a control unit.
  • the wind direction adjusting blade changes the blowing angle of the conditioned air with respect to the horizontal plane.
  • the control unit is set to be able to select automatic wind direction control that automatically changes the direction of the conditioned air via the wind direction adjusting blade.
  • the wind direction automatic control includes at least an upward air flow mode and an up / down wind direction mode. The upward air flow mode controls the direction of the conditioned air to be horizontal or upward.
  • the conditioned air is applied to a person while changing the direction of the conditioned air up and down.
  • the control unit executes the upward air flow mode in a situation where the room temperature is not in the stable region, and executes the up / down air direction mode in a situation where the room temperature is in the stable region.
  • the upward air flow mode is executed in order to allow the air flow to reach every corner of the room.
  • the temperature of the conditioned air is also high. Therefore, when the up-and-down wind direction mode is executed, the wind can hit the occupant and give a cool feeling.
  • the air conditioning indoor unit according to the second aspect of the present invention is the air conditioning indoor unit according to the first aspect, and in the up / down air direction mode, a fluctuation air flow is generated by mixing a plurality of wind direction change patterns.
  • the conditioned air swings up and down by the wind direction adjusting blades, and the pattern of gradually approaching and gradually moving away from the occupant is different each time, giving a more comfortable cool feeling than when applying fixed wind be able to.
  • the air conditioning indoor unit is the air conditioning indoor unit according to the first aspect or the second aspect, and further includes a Coanda blade.
  • the Coanda blade is provided in the vicinity of the air outlet, and guides the conditioned air into a predetermined direction as a Coanda airflow along its lower surface by the Coanda effect.
  • the conditioned air becomes an upward Coanda airflow by the Coanda blade.
  • the conditioned air becomes an upward Coanda airflow due to the Coanda effect, and can reach farther. Therefore, even when the height distance from the blower outlet to the ceiling and the face-to-face distance from the blower outlet to the facing wall are both large, the conditioned air can be uniformly distributed to the air-conditioning target space.
  • An air conditioning indoor unit is the air conditioning indoor unit according to the third aspect, and in the up / down wind direction mode, while generating a fluctuation air flow by mixing a plurality of wind direction change patterns, the Coanda air flow And a time zone in which the Coanda air current is not generated are mixed.
  • this air-conditioning indoor unit when conditioned air hits the resident, the Coanda airflow is generated and at the same time the resident air does not hit, and the Coanda effect is canceled and the conditioned air hits the resident at the same time. You can feel the wind close to the “natural wind blowing unexpectedly”.
  • the air conditioning indoor unit according to the fifth aspect of the present invention is the air conditioning indoor unit according to the first aspect, wherein the stable region is within the target temperature range based on the set temperature.
  • the stable range may not be reached depending on the outside air temperature, etc. It is more reasonable to set the stable range within the target temperature range based on
  • An air conditioner indoor unit is the air conditioner indoor unit according to the fifth aspect, and further includes a temperature sensor installed in a suction flow path for sucking room air.
  • the control unit determines that the room temperature is in the stable range when the temperature detected by the temperature sensor is within the target temperature range.
  • this air conditioner indoor unit it is usually possible to determine whether or not the room temperature is in the stable range using the existing temperature sensor in view of the fact that the temperature sensor is installed in the suction channel for detecting the room temperature. Is reasonable.
  • An air conditioning indoor unit is the air conditioning indoor unit according to the first aspect, and in the upward airflow mode, a circulating airflow is generated in which conditioned air circulates in the room.
  • the conditioned air circulates along each surface in the order of the ceiling surface, the wall surface, and the floor surface, so that the conditioned air reaches the entire room and the temperature distribution tends to be uniform.
  • the air conditioning indoor unit when the room temperature is not in the stable range, the upward airflow mode is executed in order to allow the airflow to reach every corner of the room.
  • the temperature of the conditioned air is also high. Therefore, when the up-and-down wind direction mode is executed, the wind can hit the occupant and give a cool feeling.
  • the conditioned air is swung up and down by the wind direction adjusting blades, and the pattern of gradually approaching and gradually moving away from the occupant is different every time. It can give a more comfortable cool feeling.
  • the conditioned air becomes an upward Coanda airflow due to the Coanda effect, and can reach further away. Therefore, even when the height distance from the blower outlet to the ceiling and the face-to-face distance from the blower outlet to the facing wall are both large, the conditioned air can be uniformly distributed to the air-conditioning target space.
  • the air conditioning indoor unit when the conditioned air hits the resident, the Coanda air current is generated and at the same time the resident air does not hit the resident, and the Coanda effect is eliminated and the conditioned air is released at the same time. Therefore, residents can feel a wind close to “natural wind blowing unexpectedly”.
  • the air conditioning indoor unit if the state where the room temperature becomes the set temperature is set as the stable range, there is a possibility that the stable range may not be reached depending on the outside temperature or the like. It is more reasonable to make the stable range within the target temperature range based on the set temperature.
  • the temperature sensor in view of the fact that the temperature sensor is usually installed in the suction flow path for room temperature detection, is the room temperature in the stable range using the existing temperature sensor? Since it can be judged whether or not, it is reasonable.
  • the conditioned air circulates along each surface in the order of the ceiling surface, the wall surface, and the floor surface, so that the conditioned air reaches the entire room and the temperature distribution tends to be uniform.
  • the conceptual diagram which shows the direction of conditioned air, and the direction of Coanda airflow.
  • the conceptual diagram showing an example of the opening angle of a wind direction adjustment blade
  • wing consist, and the internal angle which the tangent of the terminal F of a scroll and a wind direction adjustment blade
  • wing consist.
  • the side view of the air-conditioning indoor unit installation space which shows the wind direction of Coanda airflow when the attitude
  • the flowchart which shows operation
  • FIG. 1 is a cross-sectional view of the air conditioning indoor unit 10 when operation is stopped according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the air conditioning indoor unit 10 during operation. 1 and 2, the air conditioning indoor unit 10 is a wall-hanging type, and a main body casing 11, an indoor heat exchanger 13, an indoor fan 14, a bottom frame 16, and a control unit 40 are mounted thereon.
  • the main body casing 11 has a top surface portion 11a, a front panel 11b, a back plate 11c, and a lower horizontal plate 11d, and houses an indoor heat exchanger 13, an indoor fan 14, a bottom frame 16, and a control unit 40 therein. .
  • the top surface part 11a is located in the upper part of the main body casing 11, and the inlet (not shown) is provided in the front part of the top surface part 11a.
  • the front panel 11b constitutes the front part of the indoor unit, and has a flat shape without a suction port. Further, the upper end of the front panel 11b is rotatably supported by the top surface portion 11a, and can operate in a hinged manner.
  • the indoor heat exchanger 13 and the indoor fan 14 are attached to the bottom frame 16.
  • the indoor heat exchanger 13 exchanges heat with the passing air.
  • the indoor heat exchanger 13 has an inverted V-shape in which both ends are bent downward in a side view, and the indoor fan 14 is located below the indoor heat exchanger 13.
  • the indoor fan 14 is a cross-flow fan, blows air taken in from the room against the indoor heat exchanger 13 and then blows it into the room.
  • An air outlet 15 is provided at the lower part of the main body casing 11.
  • a wind direction adjusting blade 31 that changes the direction of conditioned air blown from the blower outlet 15 is rotatably attached to the blower outlet 15.
  • the wind direction adjusting blade 31 is driven by a motor (not shown) and can change the direction of the conditioned air, and can also open and close the air outlet 15.
  • the wind direction adjusting blade 31 can take a plurality of postures having different inclination angles.
  • a Coanda blade 32 is provided in the vicinity of the air outlet 15.
  • the Coanda blade 32 can take a posture inclined in the front-rear direction by a motor (not shown), and is accommodated in the accommodating portion 130 provided in the front panel 11b when the operation is stopped.
  • the Coanda blade 32 can take a plurality of postures having different inclination angles. Further, the air outlet 15 is connected to the inside of the main body casing 11 by the air outlet channel 18. The blowout channel 18 is formed along the scroll 17 of the bottom frame 16 from the blowout port 15.
  • the indoor air is sucked into the indoor fan 14 through the suction port and the indoor heat exchanger 13 by the operation of the indoor fan 14, and blown out from the blower outlet 15 through the blowout passage 18 from the indoor fan 14.
  • the control unit 40 is located on the right side of the indoor heat exchanger 13 and the indoor fan 14 when the main body casing 11 is viewed from the front panel 11b, and controls the rotational speed of the indoor fan 14, the wind direction adjusting blade 31 and the Coanda blade 32. Perform motion control.
  • the depth of the depression in this region is set so as to match the thickness dimension of the Coanda blade 32, and constitutes a housing portion 130 in which the Coanda blade 32 is housed.
  • the surface of the accommodating part 130 is also a gentle circular curved surface.
  • the blower outlet 15 is formed in the lower part of the main body casing 11, and is a rectangular opening which makes a horizontal direction (direction orthogonal to the paper surface of FIG. 1) a long side.
  • the lower end of the blower outlet 15 is in contact with the front edge of the lower horizontal plate 11d, and the virtual plane connecting the lower end and the upper end of the blower outlet 15 is inclined forward and upward.
  • Scroll 17 The scroll 17 is a partition wall curved so as to face the indoor fan 14 and is a part of the bottom frame 16.
  • the end F of the scroll 17 reaches the vicinity of the periphery of the air outlet 15.
  • the air passing through the blowout flow path 18 travels along the scroll 17 and is sent in the tangential direction of the end F of the scroll 17. Therefore, if there is no wind direction adjusting blade 31 at the air outlet 15, the air direction of the conditioned air blown out from the air outlet 15 is a direction substantially along the tangent L 0 of the terminal end F of the scroll 17.
  • the vertical wind direction adjusting plate 20 includes a plurality of blade pieces 201 and a connecting rod 203 that connects the plurality of blade pieces 201. Further, the vertical air direction adjusting plate 20 is disposed nearer the indoor fan 14 than the air direction adjusting blades 31 in the blowout flow path 18. The plurality of blade pieces 201 swing left and right around a state perpendicular to the longitudinal direction as the connecting rod 203 horizontally reciprocates along the longitudinal direction of the outlet 15. The connecting rod 203 is horizontally reciprocated by a motor (not shown). (2-5) Wind direction adjusting blade 31 The wind direction adjusting blade 31 has an area that can block the air outlet 15.
  • the outer side surface 31 a is finished to have a gentle circular curved surface that protrudes outwardly as if it is an extension of the curved surface of the front panel 11 b. Further, the inner side surface 31b (see FIG. 2) of the wind direction adjusting blade 31 also forms an arcuate curved surface substantially parallel to the outer surface.
  • the wind direction adjusting blade 31 has a rotation shaft 311 at the lower end.
  • the rotating shaft 311 is connected to the rotating shaft of a stepping motor (not shown) fixed to the main body casing 11 in the vicinity of the lower end of the air outlet 15.
  • the rotation shaft 311 rotates counterclockwise when viewed from the front in FIG. 1, so that the upper end of the airflow direction adjusting blade 31 moves away from the upper end side of the outlet 15 to open the outlet 15.
  • the rotation shaft 311 rotates in the clockwise direction in FIG. 1, the upper end of the wind direction adjusting blade 31 operates so as to approach the upper end side of the outlet 15 to close the outlet 15.
  • the conditioned air blown out from the air outlet 15 flows substantially along the inner side surface 31 b of the airflow direction adjusting blade 31.
  • the conditioned air blown out substantially along the tangential direction of the terminal end F of the scroll 17 has its wind direction changed slightly upward by the wind direction adjusting blade 31.
  • the Coanda blade 32 is stored in the storage unit 130 while the air-conditioning operation is stopped or in an operation in the normal blowing mode described later.
  • the Coanda blade 32 moves away from the accommodating portion 130 by rotating.
  • the rotation shaft 321 of the Coanda blade 32 is provided in the vicinity of the lower end of the housing portion 130 and inside the main body casing 11 (a position above the upper wall of the blowout flow path 18).
  • the rotating shaft 321 is connected with a predetermined interval. Therefore, as the rotation shaft 321 rotates and the Coanda blade 32 moves away from the housing portion 130 of the front surface of the indoor unit, the height position of the lower end of the Coanda blade 32 rotates so as to become lower.
  • the accommodating portion 130 is provided outside the air passage, and the entire Coanda blade 32 is accommodated outside the air passage when being accommodated.
  • the rest may be accommodated in the air passage (for example, the upper wall portion of the air passage).
  • the rotating shaft 321 rotates counterclockwise in the front view of FIG. 1, the upper and lower ends of the Coanda blades 32 are separated from the housing portion 130 while drawing an arc.
  • the shortest distance between the accommodation unit 130 on the front surface of the indoor unit is larger than the shortest distance between the lower end and the accommodation unit 130. That is, the Coanda blade 32 is controlled so as to move away from the front surface of the indoor unit as it goes forward.
  • the rotation shaft 321 rotates in the clockwise direction in the front view of FIG. 1
  • the Coanda blade 32 approaches the storage unit 130 and is finally stored in the storage unit 130.
  • the operating state of the Coanda blade 32 includes a state where the Coanda blade 32 is housed in the storage unit 130, a posture rotated and tilted forward and upward, a posture rotated and substantially horizontal, and a posture rotated and tilted forward and downward. is there.
  • the outer surface 32a of the Coanda blade 32 is finished to a gentle circular curved surface that protrudes outwardly as if it is an extension of the gentle circular curved surface of the front panel 11b.
  • the inner side surface 32 b of the Coanda blade 32 is finished to have an arcuate curved surface that follows the surface of the housing portion 130.
  • the dimension in the longitudinal direction of the Coanda blade 32 is set to be equal to or larger than the dimension in the longitudinal direction of the wind direction adjusting blade 31. This is because all the conditioned air whose direction is adjusted by the wind direction adjusting blade 31 is received by the Coanda blade 32, and its purpose is to prevent the conditioned air from the side of the Coanda blade 32 from short-circuiting.
  • Controlling the direction of conditioned air The air conditioning indoor unit of the present embodiment, as means for controlling the direction of conditioned air, is a normal blowing mode in which only the wind direction adjusting blade 31 is rotated to adjust the direction of conditioned air, and the wind direction.
  • the adjustment vane 31 and the Coanda vane 32 are rotated, and the Coanda effect utilization mode in which the conditioned air is made into a Coanda airflow along the outer surface 32a of the Coanda vane 32 by the Coanda effect is provided. Since the postures of the wind direction adjusting blade 31 and the Coanda blade 32 change for each air blowing direction in each mode, each posture will be described with reference to the drawings. It should be noted that the blowing direction can be selected by the user via a remote controller or the like. It is also possible to control the mode change and the blowing direction to be automatically changed.
  • FIG. 3A is a side view of the wind direction adjusting blade 31 and the Coanda blade 32 when the conditioned air is normally forward blown.
  • the control unit 40 rotates the wind direction adjusting blade 31 to a position where the inner side surface 31b of the wind direction adjusting blade 31 becomes substantially horizontal.
  • wing 31 has comprised the circular arc curved surface like this embodiment, the wind direction adjustment blade
  • FIG. 3B is a side view of the wind direction adjusting blade 31 and the Coanda blade 32 when the conditioned air is normally forward down blown.
  • the control unit 40 rotates the wind direction adjusting blade 31 until the tangent at the front end E1 of the inner side surface 31b of the wind direction adjusting blade 31 becomes lower than the horizontal. As a result, the conditioned air is in a front lower blowing state.
  • FIG. 6A is a side view of the air conditioning indoor unit installation space showing the wind direction of the conditioned air by the vertical swing of the wind direction adjusting blade 31.
  • the wind direction adjustment as shown in FIG. 6A is a wind direction adjustment by a so-called auto louver function, which is also implemented in a conventional product, and is used as a means for repeating the operation of applying or not applying the wind to the human body 400.
  • Coanda (effect) means that if there is a wall near the flow of gas or liquid, it flows in the direction along the wall surface even if the direction of the flow is different from the direction of the wall. It is a phenomenon to try (Asakura Shoten “Dictionary of Law”).
  • the Coanda utilization mode includes “Coanda airflow front blowing” and “Coanda airflow ceiling blowing” using this Coanda effect.
  • the direction of the conditioned air and the direction of the Coanda airflow differ depending on how the reference position is determined, but an example is shown below.
  • FIG. 4A is a conceptual diagram showing the direction of conditioned air and the direction of Coanda airflow. In FIG.
  • the Coanda blade 32 and the wind direction adjusting blade 31 need to be equal to or less than a predetermined opening angle, and the above relationship is established so that both blades (31, 32) are within the range. Is established. Thereby, as shown in FIG. 4A, after the wind direction of the conditioned air is changed to D1 by the wind direction adjusting blade 31, it is further changed to D2 by the Coanda effect.
  • FIG. 4B is a conceptual diagram illustrating an example of an opening angle between the wind direction adjusting blade 31 and the Coanda blade 32.
  • the wind direction adjusting blade 31 and the Coanda blade 32 have an inner angle formed by the tangent of the end F of the scroll 17 and the Coanda blade 32 and the tangent of the end F of the scroll 17. It is preferable to take a posture that satisfies the condition that it is larger than the inner angle formed by the wind direction adjusting blade 31. 5A (the inner angle R2 formed by the tangent line L0 of the terminal end F of the scroll 17 and the Coanda blade 32 when the Coanda airflow is blown forward and the tangent line L0 of the terminal end F of the scroll 17 and the airflow direction adjusting blade 31 are formed.
  • Comparison diagram with inner angle R1) and FIG. 5B inner angle R2 formed between tangent L0 of end F of scroll 17 and Coanda blade 32 when Coanda airflow ceiling is blown, tangent L0 of end F of scroll 17 and wind direction adjusting blade 31) (Refer to the comparison figure with the internal angle R1).
  • 3C is a side view of the wind direction adjusting blade 31 and the Coanda blade 32 during the Coanda airflow forward blow.
  • the control unit 40 moves the airflow direction adjustment blade 31 until the tangent L1 at the front end E1 of the inner side surface 31b of the airflow direction adjustment blade 31 becomes lower than the horizontal. Rotate.
  • the control unit 40 rotates the Coanda blade 32 until the outer surface 32a of the Coanda blade 32 becomes substantially horizontal.
  • the Coanda blade 32 is rotated until the tangent L2 at the front end E2 of the outer surface 32a becomes substantially horizontal. That is, as shown in FIG. 5A, the inner angle R2 formed by the tangent line L0 and the tangent line L2 is larger than the inner angle R1 formed by the tangent line L0 and the tangent line L1.
  • the conditioned air adjusted by the wind direction adjusting blade 31 to the front lower blowing becomes a flow attached to the outer surface 32a of the Coanda blade 32 by the Coanda effect, and changes to a Coanda airflow along the outer surface 32a. Therefore, even if the tangent L1 direction at the front end E1 of the airflow direction adjusting blade 31 is the front lower blowing, the tangential L2 direction at the front end E2 of the Coanda blade 32 is horizontal, so that the conditioned air is generated by the Coanda effect by the Coanda effect. It blows off in the tangent L2 direction at the front end E2 of the outer side surface 32a, that is, in the horizontal direction.
  • 3D is a side view of the wind direction adjusting blade 31 and the Coanda blade 32 when the Coanda airflow ceiling is blown.
  • the control unit 40 rotates the airflow direction adjusting blade 31 until the tangent L1 at the front end E1 of the inner side surface 31b of the airflow direction adjusting blade 31 becomes horizontal.
  • the control part 40 rotates the Coanda blade
  • the conditioned air adjusted to be blown horizontally by the airflow direction adjusting blade 31 becomes a flow adhered to the outer surface 32a of the Coanda blade 32 by the Coanda effect, and changes to a Coanda airflow along the outer surface 32a.
  • the tangential L2 direction at the front end E2 of the Coanda blade 32 is forward upward blowing, so that the conditioned air is generated by the Coanda effect by the Coanda effect. It blows out in the tangent L2 direction at the front end E2 of the outer side surface 32a, that is, the ceiling direction. Since the front end portion of the Coanda blade 32 protrudes outward from the air outlet 15, the Coanda airflow reaches further away. Furthermore, since the tip of the Coanda blade 32 is located above the outlet 15, the generation of an airflow that passes above the Coanda blade is suppressed, and the upward induction of the Coanda airflow is hardly inhibited.
  • the Coanda blades 32 are separated from the front surface of the indoor unit and the inclination becomes gentle, and the conditioned air becomes more susceptible to the Coanda effect in front of the front panel 11b.
  • the size in the longitudinal direction of the Coanda blade 32 is not less than the size in the longitudinal direction of the wind direction adjusting blade 31. Therefore, all of the conditioned air whose wind direction is adjusted by the wind direction adjusting blade 31 can be received by the Coanda blade 32, and the effect of preventing the conditioned air from being short-circuited from the side of the Coanda blade 32 is also achieved.
  • FIG. 6B is a side view of the air-conditioning indoor unit installation space showing the wind direction of the conditioned air when the wind direction adjusting blade 31 faces downward.
  • FIG. 6C is a side view of the air conditioning indoor unit installation space showing the wind direction of the Coanda airflow when the Coanda blade 32 is in the ceiling blowing posture.
  • FIG. 7 is a flowchart showing the operation of the wind direction adjusting blade 31 and the Coanda blade 32 during fluctuation airflow control.
  • the wind direction adjusting blade 31 swings between an upper limit position and a lower limit position with an operation of waiting at an intermediate position interposed therebetween.
  • the control unit 40 irregularly changes the time during which the wind direction adjusting blade 31 waits at the intermediate position (hereinafter referred to as the intermediate position standby time), and thereby the wind approaching the resident and the wind moving away. Since the combination of the two is irregularly changed, it is possible to provide residents with various winds.
  • the Coanda blade 32 swings between the upper limit position and the lower limit position. As shown in FIG.
  • the airflow direction adjustment blade 31 swings between the upper limit position and the intermediate position.
  • One pattern and a second pattern in which the wind direction adjusting blade 31 swings between the intermediate position and the lower limit position while the Coanda blade 32 stands by at the upper limit position are included.
  • the operation in which the Coanda blade 32 moves from the upper limit position to the lower limit position is synchronized with the timing at which the wind direction adjustment blade 31 moves from the intermediate position to the upper limit position.
  • the operation of the Coanda blade 32 moving from the lower limit position to the upper limit position is synchronized with the timing when the wind direction adjusting blade 31 is moved from the upper limit position to the intermediate position.
  • the Coanda blade 32 is controlled so as to be in the upper limit position, so that no Coanda airflow is generated.
  • the intermediate position standby time of the wind direction adjusting blade 31 is irregularly changed, the time during which the Coanda airflow is not generated is irregularly changed, and the intervals at which the wind is unexpectedly changed are irregularly changed by the residents.
  • a variety of winds can be provided.
  • the fluctuation airflow is generated by mixing a plurality of wind direction change patterns, but is not limited to the method of mixing the first pattern and the second pattern as described above, but only the first pattern. Can also be generated by a method of changing the intermediate position standby time of the wind direction adjusting blade 31.
  • the wind direction adjusting blade 31 is in the intermediate position and the Coanda blade 32 is in the upper limit position.
  • Time is measured as the intermediate position standby time.
  • the control part 40 can also change each of the time which the wind direction adjustment blade
  • the control unit 40 can irregularly change the time that the Coanda blade 32 waits at the lower limit position. As described above, the wind direction adjusting blade 31 and the Coanda blade 32 swing irregularly, so that conditioned air close to natural wind can be provided to the occupant.
  • Circulating airflow control during cooling operation This control executes an upward airflow mode for controlling the direction of the conditioned air horizontally or upward in order to avoid giving a draft feeling due to the impact of cold air at the start of cooling operation. After the room temperature is stabilized, the control is executed to execute the up / down wind direction mode in which conditioned air is applied in order to give the resident a cool breeze.
  • FIG. 8 is a flowchart of the circulating airflow control by the wind direction adjusting blade 31.
  • the control unit 40 determines whether or not the current operation is the cooling operation in step S1, and proceeds to step S2 if it is the cooling operation, and continues step S1 if it is not the cooling operation. .
  • step S2 the control unit 40 determines whether or not the room temperature Tr is stable. If it is not stable, the control unit 40 proceeds to step S3. If it is stable, the control unit 40 proceeds to step S5.
  • the room temperature Tr is detected by a temperature sensor 49 provided on the suction port side of the main body casing 11. Further, the room temperature is said to be stable when the room temperature Tr is within the target temperature range (Ts ⁇ a) based on the set temperature Ts.
  • step S3 the control unit 40 executes the upward air flow mode and generates a circulating air flow that circulates in the room.
  • the upward airflow mode is a mode for allowing the orientation of the airflow direction adjusting blade 31 to remain at the upper limit position shown in FIG. 6A and spreading the conditioned air over the entire room by the upward airflow.
  • step S4 the control unit 40 determines again whether or not the room temperature Tr is stable. If the room temperature Tr is stable, the control unit 40 proceeds to step S5, and if not, continues to step S3.
  • step S5 the control unit 40 executes the up / down wind direction mode and applies conditioned air to the resident.
  • the up / down air direction mode is the up / down air direction shown in FIG. 6A.
  • the upward air flow mode is executed to reach the air in every corner of the room, and when the room temperature is stable, the up / down air direction mode is executed.
  • the conditioned air can hit the resident and give a cool feeling.
  • FIG. 9 is a flowchart of the circulating airflow control by the wind direction adjusting blade 31 and the Coanda blade 32.
  • step S11, step S12, and step S14 are the same as step S1, step S2, and step S4 in FIG. 8, and therefore description thereof is omitted, and only step S13 and step S14 are described.
  • step S13 [Coanda airflow ceiling blowing] is applied to the upward airflow mode in step S3 in FIG.
  • step S15 [fluctuating airflow] is applied to the up / down wind direction mode in step S5 in FIG.
  • the fluctuation airflow mode is the fluctuation airflow control described with reference to FIG. 7, and the conditioned air close to the natural wind gives a cool feeling to the occupants when the wind direction adjusting blade 31 and the Coanda blade 32 swing irregularly. it can.
  • conditioned air close to natural wind can be provided to the occupant, so that it is useful not only for wall-mounted air conditioning indoor units but also for air purifiers.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Air-Flow Control Members (AREA)
PCT/JP2013/073675 2012-09-18 2013-09-03 空調室内機 WO2014045867A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES13838929T ES2796740T3 (es) 2012-09-18 2013-09-03 Unidad interior de acondicionamiento de aire
EP13838929.1A EP2918931B1 (en) 2012-09-18 2013-09-03 Air conditioning indoor unit
CN201380048293.4A CN104641186B (zh) 2012-09-18 2013-09-03 空调室内机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012204885A JP5408319B1 (ja) 2012-09-18 2012-09-18 空調室内機
JP2012-204885 2012-09-18

Publications (1)

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WO2014045867A1 true WO2014045867A1 (ja) 2014-03-27

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JP (1) JP5408319B1 (zh)
CN (1) CN104641186B (zh)
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CN103925681B (zh) * 2014-04-25 2017-10-27 珠海格力电器股份有限公司 空调器和空调器的控制方法、装置及系统
CN105444338B (zh) * 2014-08-26 2018-06-29 海信（山东）空调有限公司 一种控制空调送风的方法及装置
JP6213539B2 (ja) 2015-09-29 2017-10-18 ダイキン工業株式会社 空気調和装置の室内ユニット
WO2021054287A1 (ja) * 2019-09-17 2021-03-25 ダイキン工業株式会社 空調室内機
CN113915726B (zh) * 2021-11-25 2023-04-07 宁波奥克斯电气股份有限公司 一种空调器的控制方法、装置、空调器及存储介质

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JPH0989349A (ja) * 1995-09-29 1997-04-04 Matsushita Electric Ind Co Ltd 空気調和機の制御装置
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JP4017483B2 (ja) * 2002-09-25 2007-12-05 シャープ株式会社 空気調和機
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JPS6210548A (ja) * 1985-07-08 1987-01-19 Matsushita Electric Ind Co Ltd 空気調和機の風向偏向装置および風向偏向方法
JPH0989349A (ja) * 1995-09-29 1997-04-04 Matsushita Electric Ind Co Ltd 空気調和機の制御装置
JP2003232560A (ja) * 2002-02-06 2003-08-22 Sharp Corp 空気調和機
JP2004108652A (ja) 2002-09-18 2004-04-08 Sharp Corp 空気調和機
JP2012037235A (ja) * 2011-11-24 2012-02-23 Sharp Corp 空気調和方法及び空気調和機

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See also references of EP2918931A4

Also Published As

Publication number Publication date
CN104641186A (zh) 2015-05-20
EP2918931A4 (en) 2016-08-24
JP5408319B1 (ja) 2014-02-05
JP2014059106A (ja) 2014-04-03
EP2918931A1 (en) 2015-09-16
EP2918931B1 (en) 2020-03-18
CN104641186B (zh) 2016-08-31
ES2796740T3 (es) 2020-11-30

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