WO2018193534A1 - Unité de climatisation d'intérieur - Google Patents

Unité de climatisation d'intérieur Download PDF

Info

Publication number
WO2018193534A1
WO2018193534A1 PCT/JP2017/015671 JP2017015671W WO2018193534A1 WO 2018193534 A1 WO2018193534 A1 WO 2018193534A1 JP 2017015671 W JP2017015671 W JP 2017015671W WO 2018193534 A1 WO2018193534 A1 WO 2018193534A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
wind direction
detection area
flow rate
indoor unit
Prior art date
Application number
PCT/JP2017/015671
Other languages
English (en)
Japanese (ja)
Inventor
紀行 清水
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2019513126A priority Critical patent/JP6727418B2/ja
Priority to PCT/JP2017/015671 priority patent/WO2018193534A1/fr
Publication of WO2018193534A1 publication Critical patent/WO2018193534A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • 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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F24F13/085—Grilles, registers or guards including an air filter
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to an air conditioning indoor unit that includes a control unit that controls the flow rate of air blown from a blower outlet.
  • Patent Document 1 discloses an air conditioner that is installed on a ceiling surface and sends out air from the ceiling toward an indoor space.
  • Patent Document 1 when the blowing direction of the air from the blowout port is downward than the predetermined blowing direction, the blowing velocity of the air blown from the blower is made low. Further, in Patent Document 1, when the blowing direction of air from the blowout port is higher than a predetermined blowing direction, the blowing velocity of air from the blowing unit is increased.
  • Patent Document 1 attempts to improve comfort by reducing temperature unevenness in the indoor space while suppressing a draft feeling that is an unpleasant feeling caused by direct blowing of wind on a person.
  • Patent Document 1 makes the air flow rate low when the air blowing direction from the air outlet is downward regardless of the presence or absence of a person. For this reason, the time required for eliminating the temperature unevenness in the indoor space becomes longer.
  • the present invention has been made to solve the above-described problems, and provides an air-conditioning indoor unit that improves comfort by quickly reducing temperature unevenness in an indoor space while suppressing a draft feeling to a person. Is.
  • An air conditioning indoor unit is provided in a housing in which a blowout port for blowing air is formed, a heat exchanger for exchanging heat between air and a refrigerant, and a housing.
  • a blower that blows air exchanged in the heat exchanger to the air outlet, a wind direction deflector that is provided at the air outlet and changes the blowing direction of the air blown from the air outlet, and a person detection that detects the position of the person
  • a control unit that controls the flow rate of the air blown from the air outlet, and the control unit detects the human flow more than the air flow rate in the non-detection area other than the area where the person is detected by the human detection unit. It has a flow rate control means for controlling the blower or the wind direction deflector so that the flow rate of air in the detection area where the person is detected by the unit becomes small.
  • the flow rate of air blown to the detection area where the person is detected is controlled to be smaller than the flow rate of air blown to the non-detection area other than the area where the person is detected. That is, since air is sent to the non-detection area at a high flow rate, temperature unevenness in the indoor space can be quickly reduced. Further, since air is sent to the detection area at a low flow rate, it is possible to suppress a draft feeling to a person. As described above, it is possible to quickly reduce the temperature unevenness in the indoor space and improve the comfort while suppressing the draft feeling to the person.
  • FIG. 3 is a perspective view showing an area S of a non-detection area N.
  • FIG. 3 is a perspective view showing an area S of a detection area M.
  • FIG. It is a flowchart which shows operation
  • FIG. 1 is a circuit diagram showing an air conditioner 1 according to Embodiment 1 of the present invention.
  • the air conditioner 1 will be described with reference to FIG.
  • the air conditioner 1 is a device that adjusts air in an indoor space, and includes an air-conditioning outdoor unit 2, an air-conditioning indoor unit 3, and a control unit 4.
  • the air conditioning outdoor unit 2 is provided with a compressor 6, a flow path switching device 7, an outdoor heat exchanger 8, an outdoor blower 8 a, and an expansion unit 9.
  • the air conditioning indoor unit 3 is provided with a heat exchanger 14 and a blower 13.
  • the control part 4 may be provided in the inside of the air conditioning outdoor unit 2, It is good also as a unit.
  • the refrigerant circuit 5 is configured by connecting the compressor 6, the flow switching device 7, the outdoor heat exchanger 8, the expansion unit 9, and the heat exchanger 14 by piping.
  • the compressor 6 sucks refrigerant in a low-temperature and low-pressure state, compresses the sucked refrigerant, and discharges it as a refrigerant in a high-temperature and high-pressure state.
  • the flow path switching device 7 switches the flow direction of the refrigerant in the refrigerant circuit 5, and is, for example, a four-way valve.
  • the outdoor heat exchanger 8 exchanges heat between, for example, outdoor air and a refrigerant.
  • the outdoor heat exchanger 8 acts as a condenser during the cooling operation, and acts as an evaporator during the heating operation.
  • the outdoor blower 8a is a device that sends outdoor air to the outdoor heat exchanger 8.
  • the expansion part 9 is a pressure reducing valve or an expansion valve that expands by depressurizing the refrigerant.
  • the expansion part 9 is an electronic expansion valve whose opening degree is adjusted, for example.
  • the heat exchanger 14 exchanges heat between indoor air and a refrigerant, for example.
  • the heat exchanger 14 acts as an evaporator during the cooling operation, and acts as a condenser during the heating operation.
  • the blower 13 is a device that sends room air to the heat exchanger 14.
  • the condensed liquid refrigerant flows into the expansion section 9 and is expanded and depressurized in the expansion section 9 to become a low-temperature low-pressure gas-liquid two-phase refrigerant. Then, the gas-liquid two-phase refrigerant flows into the heat exchanger 14 acting as an evaporator, and in the heat exchanger 14, heat is exchanged with the indoor air sent by the blower 13, thereby evaporating gas. At this time, the room air is cooled, and the room is cooled. The evaporated low-temperature and low-pressure gaseous refrigerant passes through the flow path switching device 7 and is sucked into the compressor 6.
  • the heating operation In the heating operation, the refrigerant sucked into the compressor 6 is compressed by the compressor 6 and discharged in a high-temperature and high-pressure gas state.
  • the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 6 passes through the flow path switching device 7 and flows into the heat exchanger 14 acting as a condenser, and is sent by the blower 13 in the heat exchanger 14. Heat exchanges with room air to condense. At this time, indoor air is warmed and heating is performed indoors.
  • the condensed liquid refrigerant flows into the expansion section 9 and is expanded and depressurized in the expansion section 9 to become a low-temperature low-pressure gas-liquid two-phase refrigerant. Then, the gas-liquid two-phase refrigerant flows into the outdoor heat exchanger 8 acting as an evaporator, and in the outdoor heat exchanger 8, heat is exchanged with outdoor air sent by the outdoor blower 8a to evaporate gas. The evaporated low-temperature and low-pressure gaseous refrigerant passes through the flow path switching device 7 and is sucked into the compressor 6.
  • FIG. 2 is a cross-sectional view showing the air conditioning indoor unit 3 according to Embodiment 1 of the present invention.
  • the air conditioning indoor unit 3 is a device that is also called, for example, a one-way cassette type, a ceiling type, a ceiling-embedded type, or a room air conditioner, and includes a housing 10, a grill 11, a filter 12, A blower 13, a heat exchanger 14, a wind direction deflecting plate 15, a person detection unit 16, and a control unit 4 are provided.
  • the housing 10 is a box having a hollow portion, and is formed with an inlet 10a for sucking air and an outlet 10b for blowing air.
  • the grill 11 is provided in the suction port 10a of the housing 10 and is formed in a lattice shape.
  • the filter 12 is provided downstream of the grill 11 at the suction port 10a, and removes dust that has passed through the grill 11.
  • the blower 13 is a device that is provided downstream of the filter 12 inside the housing 10 and sends air to the heat exchanger 14.
  • the blower 13 includes a fan motor 13a, and the fan motor 13a is a device that rotationally drives the blower 13.
  • the heat exchanger 14 is a device that is provided downstream of the blower 13 inside the housing 10 and performs heat exchange between air and refrigerant.
  • the heat exchanger 14 is, for example, a fin tube type heat exchanger.
  • the wind direction deflecting plate 15 is a member that is provided at the air outlet 10b and that swings or rotates to change the blowing direction of the air blown from the air outlet 10b.
  • the wind direction deflecting plate 15 has a function of changing the air blowing direction to at least two directions depending on the posture. In the first embodiment, the case where there is one wind direction deflecting plate 15 is illustrated.
  • a deflection driving unit 15a is connected to the wind direction deflecting plate 15, and the deflection driving unit 15a is a device that rotationally drives the wind direction deflecting plate 15 about the rotation axis.
  • the deflection drive unit 15a is constituted by a stepping motor, for example.
  • the position of the wind direction deflecting plate 15 is determined by the number of pulses for driving the deflection driving unit 15a. Note that the position detection of the wind direction deflecting plate 15 may be performed using a separate sensor such as a rotary encoder.
  • the human detection unit 16 is attached to a surface facing the living space, which is the lower surface of the housing 10, and has an infrared sensor.
  • the infrared sensor scans the indoor space, and detects the position of the person based on the obtained temperature information.
  • FIG. 3 is a functional block diagram showing the control unit 4 of the air conditioning indoor unit 3 according to Embodiment 1 of the present invention.
  • the control unit 4 is a device that controls the operation of devices inside the air conditioning indoor unit 3.
  • the control unit 4 controls, for example, the detection operation of the deflection driving unit 15 a connected to the wind direction deflecting plate 15, the fan motor 13 a connected to the blower 13, and the human detection unit 16.
  • the control unit includes stirring determination means 41, distance measurement means 42, flow velocity calculation means 43, area creation means 44, posture detection means 45, and flow velocity control means 46.
  • the agitation determination means 41 determines whether or not the air in the indoor space needs to be agitated based on a signal from a remote controller (not shown) or the room temperature. For example, when the difference between the target temperature set in the control unit 4 and the room temperature increases due to the start of operation or the inflow of outside air due to ventilation, etc., the agitation of the room air is performed in order to reduce the temperature unevenness of the room air. Is determined to be necessary.
  • FIG. 4 is a cross-sectional view showing the air conditioning indoor unit 3 according to Embodiment 1 of the present invention.
  • the distance measuring means 42 obtains the distance D from the air outlet 10b to the person.
  • requires the distance D from the blower outlet 10b to the person A is demonstrated.
  • the distance measuring unit 42 stores in advance a distance H of a perpendicular line that is vertically lowered from the person detection unit 16 to the floor surface.
  • the distance measuring unit 42 detects, for example, an angle formed between a perpendicular line dropped from the position of the person detection unit 16 and a line connecting the position of the person detection unit 16 and the person.
  • the distance measurement means 42 calculates
  • the distance H is set by being input to the control unit 4.
  • FIG. 5 is a cross-sectional view showing an air conditioning indoor unit 100 according to a modification of the first embodiment of the present invention.
  • the air conditioning indoor unit 100 according to the modification includes a light projecting / receiving device 117, and the light projecting / receiving device 117 is provided on the lower surface of the housing 10.
  • the projector / receiver 117 irradiates a person A or the like with a sound wave or an electromagnetic wave, and receives light reflected by the person A or the like.
  • the distance measuring means 42 obtains the distance D from the outlet 10b to the person A based on the time from irradiation to light reception.
  • FIG. 6 is a graph showing the relationship between the distance D from the air outlet 10b and the air flow velocity. Based on the distance D measured by the distance measuring means 42, the flow speed calculating means 43 calculates the flow speed of the air blown from the outlet 10b so that the flow speed when reaching the person becomes the target flow speed.
  • the horizontal axis indicates the distance [m] from the outlet 10b
  • the vertical axis indicates the air flow velocity [m / s].
  • the air flow rate decreases as the distance D from the air outlet 10b increases.
  • the target flow velocity is set as 0.2 [m / s], for example.
  • FIG. 7 is a cross-sectional view showing the air conditioning indoor unit 3 according to Embodiment 1 of the present invention.
  • the area creation unit 44 creates the non-detection area N and the detection area M based on the position of the person detected by the person detection unit 16.
  • the non-detection area N is an area other than an area where a person is detected
  • the detection area M is an area where a person is detected.
  • the attitude detection means 45 detects the attitude of the wind direction deflecting plate 15.
  • the posture detection means 45 detects whether the wind direction deflecting plate 15 is in a position where air is sent to the non-detection area N or whether the wind direction deflecting plate 15 is in a position where air is sent to the detection area M.
  • the flow rate control means 46 controls the blower 13 or the wind direction deflecting plate 15 so that the flow rate of air in the detection area M is smaller than the flow rate of air in the non-detection area N.
  • the flow rate control means 46 controls the rotational speed of the blower 13 and the rotational speed of the blower 13 when the wind direction deflector 15 is in a position where air is sent to the non-detection area N. Instead, control is performed so that the rotational speed of the blower 13 is reduced when the wind direction deflecting plate 15 is in a position where air is sent to the detection area M.
  • the flow rate control means 46 controls the rotation speed of the blower 13 so that air is sent to the non-detection area N at a high flow rate and air is sent to the detection area M at a low flow rate.
  • the flow rate of the air sent to the non-detection area N is, for example, a flow rate equal to or higher than the stirring flow rate capable of sufficiently stirring the indoor space.
  • the flow velocity of the air sent to the detection area M is a flow velocity below the target flow velocity (0.2 [m / s]), for example.
  • the flow velocity control means 46 also has a function of increasing the driving speed of the wind direction deflecting plate 15 as in the second embodiment to be described later, but in this first embodiment, the driving speed of the wind direction deflecting plate 15 is increased. Is controlled to be constant.
  • FIG. 8 is a flowchart showing the operation of the air conditioning indoor unit 3 according to Embodiment 1 of the present invention. Next, the operation of the air conditioning indoor unit 3 will be described. As shown in FIG. 8, it is determined by the agitation determination means 41 whether it is necessary to agitate the air in the indoor space (step ST1). When it is determined that air agitation is not required (No in step ST1), the process returns to step ST1. On the other hand, when it is determined that air agitation is necessary (Yes in step ST1), the blower 13 is driven, and the wind direction deflecting plate 15 swings (step ST2).
  • step ST3 it is determined by the attitude detection means 45 whether or not the wind direction deflecting plate 15 is at a position where air is sent to the detection area M (step ST3).
  • the rotational speed of the blower 13 is increased so that the air has a flow velocity equal to or higher than the stirring flow velocity (step ST6). .
  • step ST6 it returns to step ST1 and control is repeated.
  • step ST3 when the wind direction deflecting plate 15 is in a position where air is sent to the detection area M (Yes in step ST3), the rotational speed of the blower 13 is reduced so that the air has a flow velocity equal to or lower than the target flow velocity (step ST4). ). That is, the rotation speed of the blower 13 is controlled to a rotation speed corresponding to the distance from the outlet 10b to the person (step ST5). Then, it returns to step ST1 and control is repeated.
  • the flow velocity of the air blown into the detection area M where the person is detected is smaller than the flow velocity of the air blown into the non-detection area N other than the area where the person is detected.
  • the flow rate control means 46 controls the rotational speed of the blower 13 and is based on the rotational speed of the blower 13 when the wind direction deflector 15 is in a position where air is sent to the non-detection area. Also, control is performed so that the rotational speed of the blower 13 is reduced when the wind direction deflecting plate 15 is in a position where air is sent to the detection area. Thus, the flow rate of air can be controlled by the rotational speed of the blower 13.
  • the air conditioning indoor unit 3 further includes a distance measuring unit 42 for obtaining a distance from the air outlet 10b to the person, and the control unit 4 determines when the person reaches the person based on the distance measured by the distance measuring unit 42. It further has a flow velocity calculating means 43 for calculating the flow velocity of the air blown from the outlet 10b so that the flow velocity is equal to or lower than the target flow velocity (0.2 [m / s]).
  • the air cooled and heated can be sent to the detection area M while reliably suppressing the draft feeling to the person, and the comfort can be further improved.
  • the flow velocity control means 46 controls the blower 13 so that the flow velocity of the air becomes smaller as the angle from the perpendicular line lowered from the human detection unit 16 becomes smaller. May be configured. Specifically, the flow rate control means 46 determines the air flow rate when the wind direction deflecting plate 15 is in a position where air is sent in the horizontal direction in the non-detection area N, and the wind direction deflecting plate 15 is in the non-detection area N. You may comprise so that it may become smaller than the flow velocity of air in the position where air is sent in directions other than a horizontal direction.
  • the flow rate control means 46 determines the rotation speed of the blower 13 when the wind direction deflecting plate 15 is in a position where air is sent in the horizontal direction in the non-detection area N, and the wind direction deflecting plate 15 is horizontal in the non-detection area N. It controls so that the rotation speed of the air blower 13 when it exists in the position where air is sent in directions other than a direction becomes small.
  • the flow rate of air when the wind direction deflecting plate 15 is in a position where air is sent in the horizontal direction in the non-detection area N is the same as that in the non-detection area N.
  • FIG. FIG. 9 is a cross-sectional view showing an air conditioning indoor unit 200 according to Embodiment 2 of the present invention.
  • the second embodiment is different from the first embodiment in that the driving speed for changing the direction of the wind direction deflecting plate 15 is controlled.
  • the flow rate of air is controlled without changing the rotational speed of the blower 13.
  • the same parts as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. The description will focus on differences from the first embodiment.
  • the flow rate control means 46 controls the driving speed for changing the direction of the wind direction deflecting plate 15, and the air direction deflecting plate 15 is in a position where air is sent to the non-detection area N. Control is performed such that the driving speed of the wind direction deflecting plate 15 when the air direction deflecting plate 15 is at a position where air is sent to the detection area M is larger than the driving speed of the wind direction deflecting plate 15.
  • the driving speed of the wind direction deflecting plate 15 is changed by changing the rotational speed of the deflection driving unit 15a. That is, the flow rate control means 46 controls to send air to the non-detection area N at a high flow rate and to send air to the detection area M at a low flow rate.
  • the flow rate control means 46 also has a function of reducing the rotation speed of the blower 13 as in the first embodiment, but in the second embodiment, the rotation speed of the blower 13 is constant. I have control.
  • FIG. 10 is a perspective view showing the area S of the non-detection area N
  • FIG. 11 is a perspective view showing the area S of the detection area M.
  • the air flow rate is obtained from the amount of air. For example, the flow velocity of air when reaching a person is obtained by dividing the amount of air blown out from the air outlet 10b by the air passage area S at the air arrival point.
  • FIG. 10 when the driving speed of the wind direction deflecting plate 15 decreases, the air passage area S through which the air flows decreases. For this reason, the flow velocity of air becomes high.
  • FIG. 11 when the driving speed of the wind direction deflecting plate 15 increases, the air passage area S through which air flows increases. For this reason, the flow velocity of air becomes slow.
  • FIG. 12 is a flowchart showing the operation of the air conditioning indoor unit 200 according to Embodiment 2 of the present invention.
  • the operation of the air conditioning indoor unit 200 will be described.
  • the process returns to step ST11.
  • the blower 13 is driven and the wind direction deflecting plate 15 swings (step ST12).
  • step ST13 it is determined by the attitude detection means 45 whether or not the wind direction deflecting plate 15 is at a position where air is sent to the detection area M (step ST13).
  • the driving speed of the wind direction deflecting plate 15 is reduced so that the air has a flow velocity equal to or higher than the stirring flow rate (step). ST16). Then, it returns to step ST11 and control is repeated.
  • Step ST14 the driving speed of the wind direction deflecting plate 15 is increased so that the air has a flow velocity equal to or lower than the target flow velocity. That is, the driving speed of the wind direction deflecting plate 15 is controlled to a driving speed corresponding to the distance from the outlet 10b to the person (step ST15). Then, it returns to step ST11 and control is repeated.
  • the flow velocity control means 46 controls the driving speed for changing the direction of the wind direction deflecting plate 15, and the wind direction deflecting plate 15 is at a position where air is sent to the non-detection area N. Control is performed so that the driving speed of the wind direction deflecting plate 15 when the air direction deflecting plate 15 is at a position where air is sent to the detection area M is larger than the driving speed of the wind direction deflecting plate 15 in this case.
  • the air blown from the outlet 10b is increased when the rotational speed of the deflection driving unit 15a is increased and the driving speed of the wind direction deflecting plate 15 is increased.
  • it is dispersed over a wide area, and the flow velocity of air when it reaches a person becomes slow. For this reason, it is possible to suppress a draft feeling which is an uncomfortable feeling caused by direct blowing of wind on a person.
  • the air flow rate is controlled by the driving speed of the wind direction deflecting plate 15, it is possible to quickly reduce temperature unevenness in the indoor space and improve comfort while suppressing a draft feeling to a person.
  • the rotation speed of the air blower 13 is not changed, the air flow rate is not reduced. For this reason, stirring of room air can be further promoted.
  • the flow velocity control means 46 controls the wind direction deflecting plate 15 so that the flow velocity of the air becomes smaller as the angle from the perpendicular line lowered from the human detection unit 16 becomes smaller. It may be configured to. Specifically, the flow rate control means 46 determines the air flow rate when the wind direction deflecting plate 15 is in a position where air is sent in the horizontal direction in the non-detection area N, and the wind direction deflecting plate 15 is in the non-detection area N. You may comprise so that it may become smaller than the flow velocity of air in the position where air is sent in directions other than a horizontal direction.
  • the flow rate control means 46 determines the driving speed of the wind direction deflecting plate 15 when the wind direction deflecting plate 15 is in a position where air is sent in the horizontal direction in the non-detection area N. Control is performed so that the driving speed of the wind direction deflecting plate 15 when the air is in a position other than the horizontal direction is increased.
  • the flow rate of air when the wind direction deflecting plate 15 is in a position where air is sent in the horizontal direction in the non-detection area N is the same as that of the non-detection area N.
  • the air flow rate may be changed by both the rotational speed of the blower 13 and the driving speed of the wind direction deflecting plate 15.
  • FIG. FIG. 13 is a bottom view showing an air conditioning indoor unit 300 according to Embodiment 3 of the present invention.
  • the third embodiment is different from the first embodiment in that four outlets 320 and four wind direction deflecting plates 325 are provided.
  • the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. The description will focus on differences from the first embodiment.
  • the air conditioning indoor unit 3 is a device called a four-way cassette type, for example.
  • Four air outlets 320a, 320b, 320c, and 320d are formed in the housing 310, and four wind direction deflecting plates 325a, 325b, 325c, and 325d are provided in the air outlets 320a, 320b, 320c, and 320d, respectively.
  • the four outlets 320a, 320b, 320c, and 320d may be referred to as the outlet 320
  • the four wind direction deflecting plates 325a, 325b, 325c, and 325d may be referred to as the wind direction deflecting plate 325.
  • the number of the air outlets 320 and the wind direction deflecting plates 325 is not limited to four, and may be two, three, or five or more.
  • FIG. 14 is a cross-sectional view showing the air conditioning indoor unit 3 according to Embodiment 3 of the present invention.
  • the housing 310 is a box having a hollow portion, and is formed with a suction port 310a for sucking air and a blower port 320 for blowing air.
  • the grill 311 is a lattice-shaped member that is provided in the suction port 310a of the housing 310 and covers the suction port 310a.
  • the filter 312 is provided downstream of the grill 311 at the suction port 310a, and removes dust that has passed through the grill 311.
  • the blower 313 is a device that is provided downstream of the filter 312 in the housing 310 and sends air to the heat exchanger 314.
  • the blower 313 has a fan motor 313a, and the fan motor 313a is a device that rotationally drives the blower 313.
  • the heat exchanger 314 is a device that is provided downstream of the blower 313 inside the housing 310 and performs heat exchange between air and refrigerant.
  • the heat exchanger 314 is, for example, a fin tube type heat exchanger.
  • the wind direction deflecting plate 325 is a member that is provided at each of the air outlets 320 and changes the air blowing direction of the air blown from the air outlets 320 by swinging or rotating.
  • a deflection drive unit 315a is connected to the wind direction deflection plate 325, and the deflection drive unit 315a is a device that rotationally drives the wind direction deflection plate 325 about the rotation axis.
  • the deflection drive unit 15a is constituted by a stepping motor, for example.
  • the position of the wind direction deflecting plate 325 is determined by the number of pulses for driving the deflection driving unit 315a. Note that the position detection of the wind direction deflecting plate 325 may be performed using a separate sensor such as a rotary encoder.
  • the human detection unit 316 is attached to a surface facing the living space, which is the lower surface of the housing 310, and includes an infrared sensor.
  • the infrared sensor scans the indoor space, and detects the position of the person based on the obtained temperature information.
  • the control unit 4 is a device that controls the operation of the devices inside the air conditioning indoor unit 3.
  • the control unit 4 controls the detection operation of the deflection driving unit 315 a connected to the wind direction deflecting plate 325, the fan motor 313 a connected to the blower 313, and the human detection unit 316.
  • the flow velocity control means 46 independently controls the flow velocity of the air blown out from the four outlets 320.
  • the flow velocity of the air blown into the detection area M where the person is detected is smaller than the flow velocity of the air blown into the non-detection area N other than the area where the person is detected.
  • a plurality of air outlets 320 are formed in the casing 310, a plurality of wind direction deflecting plates 325 are provided in the respective air outlets 320, and the flow rate control means 46 includes a plurality of air outlets 320.
  • the flow rate of the air blown out from the outlet 320 is independently controlled.
  • the control unit 4 performs control so that the air flow velocity when reaching the person is equal to or less than the target flow velocity (0.2 [m / s]). Thereby, the air cooled and heated can be sent to the detection area M while reliably suppressing the draft feeling to the person, and the comfort can be further improved.
  • the flow velocity control means 46 controls the blower 13 so that the flow velocity of the air becomes smaller as the angle from the perpendicular line lowered vertically from the human detection unit 16 becomes smaller. It may be configured. Specifically, the flow rate control means 46 determines the air flow rate when the wind direction deflecting plate 325 is in a position where the air is sent in the horizontal direction in the non-detection area N, and the wind direction deflecting plate 325 is in the non-detection area N. You may comprise so that it may become smaller than the flow velocity of air in the position where air is sent in directions other than a horizontal direction.
  • the flow rate control means 46 determines the rotation speed of the blower 313 when the wind direction deflecting plate 325 is in a position where air is sent in the horizontal direction in the non-detection area N, and the wind direction deflecting plate 325 is horizontal in the non-detection area N. It controls so that the rotation speed of the air blower 313 when it exists in the position where air is sent in directions other than a direction becomes small.
  • the airflow direction deflector 325 When the airflow direction deflector 325 is in a position where air is sent in the horizontal direction, if the flow velocity of air is high, air hitting the wall flows to the ceiling side, and smudging occurs where dirt in the air adheres to the ceiling surface. There is a fear.
  • the flow rate of air when the wind direction deflecting plate 325 is at a position where air is sent in the horizontal direction in the non-detection area N is the same as that of the non-detection area N.
  • the temperature unevenness in the indoor space can be quickly reduced while the draft feeling to the person is suppressed, thereby improving the comfort. Can be improved.
  • the rotation speed of the blower 313 since the rotation speed of the blower 313 is not changed, the amount of blown air is not reduced. For this reason, stirring of room air can be further promoted.
  • FIG. 15 is a cross-sectional view showing an air conditioning indoor unit 400 according to a first modification of the third embodiment of the present invention.
  • the flow rate control means 46 is configured so that the number of people in the detection area M is higher than the flow rate of air blown into the area E where the number of people is small. Control is performed so that the flow velocity of the air blown into the large area F becomes small.
  • the flow rate control means 46 determines the wind direction when air is sent to the area F where the number of people is larger than the driving speed of the wind direction deflecting plate 325 when air is sent to the area E where the number of people is small. Control is performed so that the driving speed of the deflection plate 325 increases. As a result, the greater the number of people, the slower the air flow rate, so that the draft feeling can be suppressed for all people in the indoor space.
  • the area F with a large number of people can be dealt with by increasing the driving speed of the wind direction deflecting plate 325. Therefore, it takes time to reduce the rotational speed of the blower 313. Can be shortened. For this reason, the fall of the ventilation volume can be suppressed.
  • FIG. 16 is sectional drawing which shows the air-conditioning indoor unit 500 which concerns on the 2nd modification of Embodiment 3 of this invention.
  • the control unit 4 sends air to the non-detection area N through the driving range K of the wind direction deflector 325 corresponding to the area of the detection area M where the number of people is large.
  • the driving range J of the wind direction deflecting plate 325 corresponding to an area where the number of people is small in the detection area M is controlled to a position where air is sent to the non-detection area N and the detection area M.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Selon l'invention, une unité de climatisation d'intérieur comprend : une enceinte dans laquelle est formé un orifice d'expulsion qui expulse de l'air ; un échangeur de chaleur disposé à l'intérieur de l'enceinte permettant d'échanger de la chaleur entre l'air et un réfrigérant ; une soufflante disposée à l'intérieur de l'enceinte permettant de souffler l'air qui a été soumis à un échange de chaleur dans l'échangeur de chaleur vers l'orifice d'expulsion ; une plaque de déviation de direction de courant d'air disposée dans l'orifice d'expulsion permettant de modifier la direction dans laquelle l'air à expulser par l'orifice d'expulsion est expulsé ; une unité de détection de personne qui détecte la position d'une personne ; et une unité de commande qui commande la vitesse d'écoulement de l'air expulsé par l'orifice d'expulsion. L'unité de commande contient un moyen de commande de vitesse d'écoulement permettant de commander la soufflante ou la plaque de déviation de direction de courant d'air de sorte que la vitesse d'écoulement d'air dans une zone détectée dans laquelle une personne a été détectée par l'unité de détection de personne est inférieure à la vitesse d'écoulement d'air dans une zone non détectée à l'extérieur de la zone dans laquelle une personne a été détectée par l'unité de détection de personne.
PCT/JP2017/015671 2017-04-19 2017-04-19 Unité de climatisation d'intérieur WO2018193534A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019513126A JP6727418B2 (ja) 2017-04-19 2017-04-19 空調室内機
PCT/JP2017/015671 WO2018193534A1 (fr) 2017-04-19 2017-04-19 Unité de climatisation d'intérieur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/015671 WO2018193534A1 (fr) 2017-04-19 2017-04-19 Unité de climatisation d'intérieur

Publications (1)

Publication Number Publication Date
WO2018193534A1 true WO2018193534A1 (fr) 2018-10-25

Family

ID=63855670

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/015671 WO2018193534A1 (fr) 2017-04-19 2017-04-19 Unité de climatisation d'intérieur

Country Status (2)

Country Link
JP (1) JP6727418B2 (fr)
WO (1) WO2018193534A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115817117A (zh) * 2023-02-10 2023-03-21 宁波舜宇精工股份有限公司 汽车电动出风口控制方法、系统、存储介质及智能终端

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279737A (ja) * 1990-03-12 1991-12-10 Mitsubishi Electric Corp 空気調和機
JPH0875217A (ja) * 1994-09-09 1996-03-19 Matsushita Seiko Co Ltd 工場空調システム
JPH0894157A (ja) * 1994-09-29 1996-04-12 Daikin Ind Ltd 空気調和装置の風量調整装置
JP2006220405A (ja) * 2005-01-12 2006-08-24 Mitsubishi Electric Corp 空気調和装置
JP2015068603A (ja) * 2013-09-30 2015-04-13 ダイキン工業株式会社 空気調和装置
WO2016117088A1 (fr) * 2015-01-22 2016-07-28 三菱電機株式会社 Unité intérieure pour climatiseur, climatiseur et procédé de régulation de flux d'air
WO2016189867A1 (fr) * 2015-05-27 2016-12-01 パナソニックＩｐマネジメント株式会社 Soufflante

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279737A (ja) * 1990-03-12 1991-12-10 Mitsubishi Electric Corp 空気調和機
JPH0875217A (ja) * 1994-09-09 1996-03-19 Matsushita Seiko Co Ltd 工場空調システム
JPH0894157A (ja) * 1994-09-29 1996-04-12 Daikin Ind Ltd 空気調和装置の風量調整装置
JP2006220405A (ja) * 2005-01-12 2006-08-24 Mitsubishi Electric Corp 空気調和装置
JP2015068603A (ja) * 2013-09-30 2015-04-13 ダイキン工業株式会社 空気調和装置
WO2016117088A1 (fr) * 2015-01-22 2016-07-28 三菱電機株式会社 Unité intérieure pour climatiseur, climatiseur et procédé de régulation de flux d'air
WO2016189867A1 (fr) * 2015-05-27 2016-12-01 パナソニックＩｐマネジメント株式会社 Soufflante

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115817117A (zh) * 2023-02-10 2023-03-21 宁波舜宇精工股份有限公司 汽车电动出风口控制方法、系统、存储介质及智能终端

Also Published As

Publication number Publication date
JP6727418B2 (ja) 2020-07-22
JPWO2018193534A1 (ja) 2019-11-21

Similar Documents

Publication Publication Date Title
JP6734624B2 (ja) 空気調和装置の室内ユニット
AU2011211125B2 (en) Ceiling-mounted indoor unit for air conditioning apparatus
JP6157339B2 (ja) 室内機及び空気調和装置
JP5987882B2 (ja) 空気調和装置の室内ユニット
JP6213539B2 (ja) 空気調和装置の室内ユニット
EP2498019A1 (fr) Unité d'intérieur pour climatiseur
JP4478082B2 (ja) 空気調和機の制御方法
US20120214398A1 (en) Indoor unit of air conditioning apparatus
KR20190042201A (ko) 공기조화기
US11047584B2 (en) Air conditioner
JP2011185591A (ja) 空気調和装置の室内ユニット
JPH0650595A (ja) 空気調和装置
WO2018193534A1 (fr) Unité de climatisation d'intérieur
CN211041167U (zh) 空调装置的室内机
JP5316473B2 (ja) 空気調和装置
JP2016183806A (ja) 空気調和装置
KR101901303B1 (ko) 공기조화기
JP6038264B1 (ja) 空気調和システム
JP2019190766A (ja) 空気調和装置
JP6562139B2 (ja) 冷凍装置
JP7209844B2 (ja) 吹出グリル、室内機及び空気調和装置
JP3864814B2 (ja) 空気調和機
JPWO2020240620A1 (ja) 吹出グリル、室内機及び空気調和装置
JP7112035B2 (ja) 空気調和機
KR100789710B1 (ko) 천정형 에어컨

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2019513126

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17906542

Country of ref document: EP

Kind code of ref document: A1