WO2021064850A1 - Dispositif de commande, dispositif de climatisation, système de climatisation et procédé de commande - Google Patents

Dispositif de commande, dispositif de climatisation, système de climatisation et procédé de commande Download PDF

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Publication number
WO2021064850A1
WO2021064850A1 PCT/JP2019/038693 JP2019038693W WO2021064850A1 WO 2021064850 A1 WO2021064850 A1 WO 2021064850A1 JP 2019038693 W JP2019038693 W JP 2019038693W WO 2021064850 A1 WO2021064850 A1 WO 2021064850A1
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WO
WIPO (PCT)
Prior art keywords
air
window
temperature
curtain
side unit
Prior art date
Application number
PCT/JP2019/038693
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English (en)
Japanese (ja)
Inventor
芸青 范
恵美 竹田
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.)
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2021550801A priority Critical patent/JP7321283B2/ja
Priority to PCT/JP2019/038693 priority patent/WO2021064850A1/fr
Publication of WO2021064850A1 publication Critical patent/WO2021064850A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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

Definitions

  • the present invention relates to a control device, an air conditioner, an air conditioner system, and a control method for adjusting the air in the air-conditioned space.
  • Patent Document 1 describes that a floor heating device is used in addition to an electric heating curtain to prevent dew condensation.
  • the present invention has been made to solve the above problems, and provides a control device, an air conditioner, an air conditioner, and a control method for improving the comfort of the indoor environment.
  • the control device detects the window temperature indicating the temperature of a window provided in the air-conditioned space, the window environment detection unit for detecting the open / closed state of the curtain provided in the window, and the dew point temperature of the air-conditioned space.
  • a control device that controls a load-side unit that adjusts the air in the air-conditioned space based on the detection result of the dew point temperature detection unit to be detected.
  • An operation mode corresponding to the opening / closing information indicating the opening / closing state of the curtain is selected, and the selected operation mode is executed by the load-side unit.
  • the air conditioner according to the present invention is the air conditioner after heat exchange with the refrigerant in the above control device, the heat source side unit including the compressor and the heat source side heat exchanger, the load side heat exchanger, and the load side heat exchanger.
  • the control device includes a blower that blows air into the air-conditioned space and a load-side unit that includes a wind direction adjusting unit that adjusts the blowing direction of the air blown by the blower, and the control device is the air in the air-conditioned space. Is adjusted by the load side unit, one or both of the rotation speed of the blower and the blowing direction of the wind direction adjusting unit are controlled.
  • the air-conditioning system includes the above-mentioned control device and an air-conditioning device including a heat source-side unit that generates a heat source and a load-side unit that uses the heat source.
  • the air-conditioning system includes the above-mentioned control device, an air-conditioning device including a heat source-side unit that generates a heat source and the load-side unit that uses the heat source, and a blind provided outside the window.
  • the control device controls the opening and closing of the blind in response to the dew condensation occurrence information and the opening / closing information.
  • the window temperature indicating the temperature of the window provided in the air-conditioned space, the window environment detection unit for detecting the open / closed state of the curtain provided in the window, and the dew point temperature of the air-conditioned space are determined. It is a control method by a control device that controls a load side unit that adjusts the air in the air-conditioned space based on the detection result of the dew point temperature detection unit to be detected, and dew condensation occurs based on the window temperature and the dew point temperature. An operation mode corresponding to the information and the opening / closing information indicating the opening / closing state of the curtain is selected, and the selected operation mode is executed by the load-side unit.
  • the operation mode executed by the load-side unit is selected according to the state of whether or not dew condensation occurs on the window and the state of whether or not the curtain is open or closed. Comfort can be improved.
  • FIG. 5 is an external view showing an example of a case where the load side unit of the air conditioner according to the first embodiment is installed in the air-conditioned space.
  • It is a refrigerant circuit diagram which shows one configuration example of the air conditioner including the load side unit shown in FIG.
  • It is an external perspective view which shows an example of the load side unit shown in FIG.
  • It is a front view of the load side unit shown in FIG.
  • It is a figure which shows typically the cross section when the load side unit shown in FIG. 4 is cut by the AA part.
  • It is an external schematic view which shows one structural example of the 1st wind direction plate shown in FIG. It is a schematic diagram which shows that the angle of the 1st wind direction plate shown in FIG.
  • FIG. 6 It is changed, and the blowing direction of the air blown out from the outlet shown in FIG. 3 is changed.
  • FIG. 8 It is a functional block diagram which shows one configuration example of the control device shown in FIG.
  • FIG. 5 is a schematic view showing an example of a normal operation mode when the curtain is in the open state in step S105 of FIG. It is a schematic diagram which shows an example of the normal operation mode when the curtain is closed in step S105 of FIG. It is a schematic diagram which shows an example of a cold draft cut operation mode.
  • FIG. 5 is a schematic view showing an example of a circulation operation mode when the curtain is in the open state in step S105 of FIG. It is a schematic diagram which shows an example of the circulation operation mode when the curtain is closed in step S105 of FIG. FIG.
  • FIG. 5 is a schematic view showing another example of the circulation operation mode when the curtain is in the open state in step S105 of FIG. It is a schematic diagram which shows another example of the circulation operation mode when the curtain is closed in step S105 of FIG. It is a figure for demonstrating the control performed by the control device of the air conditioner which concerns on modification 1.
  • FIG. It is a schematic diagram which shows an example of the target space where the temperature distribution is detected by the infrared sensor shown in FIG. It is an image diagram which shows an example of the case where the temperature distribution detected by the infrared sensor shown in FIG. 21 is displayed on a two-dimensional image. It is an image diagram which shows another example when the temperature distribution detected by the infrared sensor shown in FIG. 21 is displayed on a two-dimensional image.
  • FIG. 1 is an external view showing an example of a case where the load-side unit of the air conditioner according to the first embodiment is installed in the air-conditioned space.
  • the load-side unit 103 included in the air conditioner 100 of the first embodiment is installed in a room which is an air-conditioned space.
  • a window 150 is provided in the room which is the space to be air-conditioned, and a curtain 151 is provided in the window 150.
  • a window environment detection unit 2 including a window temperature sensor 10 that detects the window temperature, which is the temperature of the window 150, and an open / close sensor 11 that detects the open / closed state of the curtain 151 provided in the window 150 is provided in the room. There is.
  • FIG. 1 shows the case where one window 150 is provided in the room which is the space to be air-conditioned, but the number of windows 150 may be plural. Further, although FIG. 1 shows a case where the number of curtains 151 provided on the window 150 is two, the number of curtains 151 is not limited to two.
  • the window temperature sensor 10 is, for example, a thermistor.
  • the window temperature is, for example, the surface temperature of the glass surface on the indoor side of the window 150.
  • the open / close sensor 11 is, for example, a proximity sensor.
  • the open / close sensor 11 has a reed switch 11a and a magnet 11b. The reed switch 11a switches from the off state to the on state when the magnet 11b approaches, and switches from the on state to the off state when the magnet 11b separates.
  • FIG. 2 is a refrigerant circuit diagram showing a configuration example of an air conditioner including the load side unit shown in FIG.
  • the air conditioner 100 of the first embodiment has a heat source side unit 104 that generates a heat source, and a load side unit 103 that adjusts the air in the room by using the heat source generated by the heat source side unit 104.
  • the heat source side unit 104 includes a compressor 119, a heat source side heat exchanger 116, an expansion valve 117, a blower 114, and a four-way valve 118.
  • the load-side unit 103 includes a load-side heat exchanger 115, a blower 113, a wind direction adjusting unit 105, and a control device 30.
  • the wind direction adjusting unit 105 has a first wind direction plate 4 and a second wind direction plate 5 for adjusting the blowing direction of the air blown from the load side unit 103.
  • the load-side unit 103 is provided with a dew point temperature detection unit 12 including a room temperature sensor 121 that detects the temperature of the indoor air and a humidity sensor 122 that detects the humidity of the indoor air.
  • the compressor 119, the heat source side heat exchanger 116, the expansion valve 117, and the load side heat exchanger 115 are connected by a refrigerant pipe 120 to form a refrigerant circuit 102 in which the refrigerant circulates.
  • the compressor 119 compresses and discharges the refrigerant to be sucked.
  • the compressor 119 is, for example, an inverter type compressor whose capacity can be changed.
  • the four-way valve 118 changes the flow direction of the refrigerant flowing through the refrigerant circuit 102.
  • the expansion valve 117 depressurizes the refrigerant and expands it.
  • the expansion valve 117 is, for example, an electronic expansion valve.
  • the heat source side heat exchanger 116 is a heat exchanger that exchanges heat between the refrigerant and the outside air.
  • the load side heat exchanger 115 is a heat exchanger that exchanges heat between the refrigerant and the air in the room.
  • the heat source side heat exchanger 116 and the load side heat exchanger 115 are, for example, fin tube type heat exchangers.
  • a heat pump is formed by circulating the refrigerant in the refrigerant circuit 102 while repeating compression and expansion.
  • the load side unit 103 adjusts the air in the room by performing operations such as cooling, heating, dehumidifying, humidifying, moisturizing, and blowing air.
  • FIG. 2 shows a case where the control device 30 is provided on the load side unit 103, but the installation position of the control device 30 is not limited to the load side unit 103.
  • the control device 30 may be provided in the heat source side unit 104 or may be provided outside.
  • FIG. 3 is an external perspective view showing an example of the load side unit shown in FIG.
  • FIG. 4 is a front view of the load side unit shown in FIG.
  • FIG. 5 is a diagram schematically showing a cross section when the load side unit shown in FIG. 4 is cut at the AA portion.
  • the load-side unit 103 has a housing 60 that includes the load-side heat exchanger 115, the blower 113, the control device 30, and the wind direction adjusting unit 105 shown in FIG.
  • a suction port 61 for sucking air from the room is provided in the upper part of the housing 60.
  • an outlet 62 is provided so that the air after heat exchange with the refrigerant in the load side heat exchanger 115 is blown into the room.
  • FIG. 5 shows a case where a part of the configuration inside the housing 60 is viewed from the side instead of the cross section.
  • the configuration example shown in FIG. 5 shows the case where the blower 113 is a cross-flow fan, but the blower 113 is not limited to the cross-flow fan.
  • the blower 113 blows the air sucked from the suction port 61 to the outlet 62.
  • the air sucked into the housing 60 from the room exchanges heat with the refrigerant in the load side heat exchanger 115, and then is blown out into the room through the air outlet 62.
  • the load-side heat exchanger 115 functions as an evaporator when the load-side unit 103 performs a cooling operation, and cools the air in the room.
  • the load-side heat exchanger 115 functions as a condenser when the load-side unit 103 performs a heating operation, and heats the air in the room.
  • the air outlet 62 is provided with a first wind direction plate 4 and a second wind direction plate 5 for adjusting the wind direction of the air blown from the air outlet 62.
  • FIG. 6 is an external schematic view showing a configuration example of the first wind direction plate shown in FIG.
  • the load side unit 103 is provided with a first drive unit (not shown) that changes the angle of the first wind direction plate 4.
  • the first wind direction plate 4 has a plurality of blades 4a to 4d arranged at intervals along the horizontal direction (Y-axis arrow direction).
  • the blades 4a to 4d are connected to each other by a fixed shaft 41 and a movable shaft 42.
  • the blades 4a to 4d are connected to a first drive unit (not shown) via a movable shaft 42.
  • FIG. 7 is a schematic view showing that the angle of the first wind direction plate shown in FIG. 6 is changed to change the blowing direction of the air blown out from the outlet shown in FIG.
  • FIG. 7 shows the blades 4a to 4d that are seen through when the load side unit 103 is viewed from above for the sake of explanation.
  • the front direction (X-axis arrow direction) of the load side unit 103 is defined as the horizontal reference Hax, and the angles of the blades 4a to 4d of the first wind direction plate 4 are defined as ⁇ h.
  • the air blowing direction ad1 at the angle ⁇ h2 is indicated by a solid arrow
  • the air blowing direction ad2 at an angle ⁇ h1 is indicated by a broken line arrow.
  • FIG. 8 is a schematic external view showing a configuration example of the second wind direction plate shown in FIG.
  • the load-side unit 103 is provided with a second drive unit (not shown) that changes the angle of the second wind direction plate 5.
  • the second wind direction plate 5 has a front blade 5a and a rear blade 5b.
  • a rotating shaft 51a parallel to the Y-axis direction is attached to the front blade 5a, and a rotating shaft 51b parallel to the Y-axis direction is attached to the rear blade 5b.
  • the rotating shafts 51a and 51b are connected to a second drive unit (not shown).
  • FIG. 9 is a schematic view showing that the angle of the second wind direction plate shown in FIG. 8 is changed to change the blowing direction of the air blown out from the air outlet.
  • the front blade 5a is shown in an enlarged manner, and the rear blade 5b is omitted.
  • the downward direction (opposite direction of the Z-axis arrow) of the load side unit 103 is defined as the vertical reference VAX, and the angles of the front blade 5a and the rear blade 5b shown in FIG. 8 are defined as ⁇ v.
  • the air blowing direction ad3 at the angle ⁇ v1 is indicated by a solid arrow
  • the air blowing direction ad4 at an angle ⁇ v2 is indicated by a broken line arrow.
  • FIG. 10 is a block diagram showing a configuration example of the control device shown in FIG.
  • the control device 30 has, for example, a memory 131 and a CPU (Central Processing Unit) 132.
  • the memory 131 has a ROM (Read Only Memory) for storing a program and a RAM (Random Access Memory) for storing data of a calculation process of the CPU 132.
  • the CPU 132 is also referred to as a processor, a microprocessor, a microcomputer, or a DSP (Digital Signal Processor).
  • the CPU 132 reads out the programs and data stored in the ROM, uses the RAM as a work area, and controls these memories in an integrated manner.
  • the control device 30 is connected to each of the compressor 119, the expansion valve 117, the blower 114, and the four-way valve 118 via a signal line.
  • the control device 30 is connected to each of the blower 113, the first drive unit (not shown), and the second drive unit (not shown) via a signal line.
  • the control device 30 is connected to each of the room temperature sensor 121, the humidity sensor 122, the window temperature sensor 10, and the open / close sensor 11 via a signal line.
  • the various sensors transmit the detected value to the control device 30 at regular intervals.
  • the communication connecting means between the control device 30 and each refrigerant device such as the compressor 119 is not limited to the wired one, but may be wireless, or may be a means in which the wired and wireless are combined.
  • the communication connection means between the control device 30 and the various sensors is not limited to the wired one, but may be wireless, or may be a means in which the wired and wireless are combined.
  • FIG. 11 is a functional block diagram showing a configuration example of the control device shown in FIG.
  • the control device 30 includes a refrigeration cycle control means 31, a guessing means 32, and an airflow control means 33.
  • the memory 131 shown in FIG. 10 stores position information indicating the direction of the window 150 with reference to the load side unit 103.
  • the position information is, for example, information represented by angles ⁇ h and ⁇ v indicating the direction of the window 150 with reference to the load side unit 103.
  • the refrigeration cycle control means 31 controls the four-way valve 118 in response to operations such as cooling, heating, dehumidification, humidification, moisturization, and ventilation of the load side unit 103.
  • the refrigeration cycle control means 31 controls the refrigeration cycle of the refrigerant circuit 102 based on the room temperature and the set temperature, and the humidity and the set humidity. Specifically, the refrigeration cycle control means 31 uses the operating frequency of the compressor 119 and the expansion valve so that the room temperature matches the set temperature within a certain range and the indoor humidity matches the set humidity within a certain range.
  • the opening degree of 117 and the rotation speeds of the blowers 113 and 114 are controlled.
  • the set temperature and the set humidity are set by the user in the control device 30 via a remote controller (not shown in the figure).
  • the refrigeration cycle control means 31 transmits control information including the input air volume information to the air flow control means 33.
  • the refrigeration cycle control means 31 transmits control information including the input wind direction information to the airflow control means 33.
  • the guessing means 32 obtains the dew point temperature based on the room temperature detected by the room temperature sensor 121 and the humidity detected by the humidity sensor 122.
  • the estimation means 32 obtains dew condensation generation information which is information based on the window temperature and the dew point temperature detected by the window temperature sensor 10, and estimates the dew condensation generation of the window 150.
  • the guessing means 32 calculates the temperature difference Tb between the window temperature and the dew point temperature, and uses the temperature difference Tb to calculate the dew condensation occurrence rate Rdew as a risk index for the occurrence of dew condensation.
  • the dew condensation occurrence rate Rdew is an example of dew condensation occurrence information.
  • the guessing means 32 determines whether or not the temperature difference Tb is larger than the predetermined temperature difference threshold Tth.
  • the temperature difference threshold Tth is, for example, 5 ° C.
  • the guessing means 32 determines that the dew condensation occurrence rate Rdew is 0%. In this case, the guessing means 32 determines that the risk of dew condensation on the window 150 is low.
  • the guessing means 32 calculates the dew condensation occurrence rate Rdew on the assumption that the temperature difference Tb and the dew condensation occurrence rate Rdew are in a linear relationship.
  • the criterion for determining that the risk of dew condensation is low is not limited to 0%, and may be, for example, 5%. Further, the criterion for determining that the risk of dew condensation is high is not limited to 100%, and may be, for example, 95%. The criterion for determining that the risk of dew condensation is low corresponds to the first threshold value, and the criterion for determining that the risk of dew condensation is high corresponds to the second threshold value.
  • the airflow control means 33 causes the load side unit 103 to adjust the air in the room in response to the dew condensation generation information indicating the estimation result by the estimation means 32 and the opening / closing information indicating the open / closed state of the curtain 151. For example, while the load side unit 103 is in the heating operation, the airflow control means 33 selects one of the three operation modes to load according to the dew condensation generation information and the opening / closing information of the curtain 151. Let the side unit 103 execute.
  • the three operation modes are a normal operation mode, a cold draft cut operation mode, and a circulation operation mode.
  • the normal operation mode is an operation for maintaining the room temperature at the set temperature and the indoor humidity at the set humidity.
  • the airflow control means 33 controls the blower 113 and the wind direction adjusting unit 105 so that the entire room becomes the set temperature and the set humidity.
  • the airflow control means 33 controls the blower 113 and the wind direction adjusting unit 105 so that the airflow reaches the entire room evenly from the load side unit 103.
  • the airflow by warm air is blown from the air outlet 62 shown in FIG. 3 to the window 150. It is an operation that blows out downward.
  • the circulation operation mode is an operation in which the airflow velocity on the surface of the window 150 is increased by circulating the airflow in the room so that dew condensation does not occur on the surface of the window 150.
  • the cold draft cut operation mode corresponds to the first operation mode, and the circulation operation mode corresponds to the second operation mode.
  • the airflow control means 33 controls one or both of the rotation speed of the blower 113 and the blowing direction of the wind direction adjusting unit 105.
  • the airflow control means 33 controls the rotation speed of the blower 113 when adjusting the air volume of the air blown out from the air outlet 62. Further, when the airflow control means 33 adjusts the blowing direction of the air blown from the outlet 62, the airflow control means 33 controls the angle ⁇ h of the first wind direction plate 4 via the first drive unit (not shown) to drive the second drive.
  • the angle ⁇ v of the second wind direction plate 5 is controlled via a portion (not shown).
  • FIG. 12 is a table showing an example of control performed by the airflow control means when the load side unit shown in FIG. 2 performs a heating operation.
  • the airflow control means 33 selects the normal operation mode. This is because the risk of condensation is low.
  • the airflow control means 33 selects the cold draft cut operation mode. This is because the risk of dew condensation is low, but the curtain 151 is open to suppress the cold draft phenomenon.
  • the airflow control means 33 selects the circulation operation mode. This is because there is a high risk of condensation.
  • the airflow control when the curtain 151 is in the closed state will be described with reference to FIG.
  • the estimation means 32 estimates that the dew condensation occurrence rate Rdew is 0% or more and less than 100%
  • the airflow control means 33 selects the normal operation mode. This is because the risk of dew condensation is low even when the curtain 151 is closed.
  • the estimation means 32 estimates that the dew condensation occurrence rate Rdew is 100%
  • the airflow control means 33 selects the circulation operation mode. This is because there is a high risk of condensation.
  • the estimation means 32 uses the temperature difference Tb having the smallest value among the plurality of temperature differences Tb detected by the plurality of window temperature sensors 10 for calculating the dew condensation occurrence rate. It is desirable that the window temperature sensor 10 is provided at a position in the window 150 where the temperature is expected to be the lowest.
  • FIG. 13 is a flowchart showing an example of the operation procedure of the air conditioner according to the first embodiment.
  • the refrigeration cycle control means 31 determines whether or not the load side unit 103 is performing the heating operation.
  • the guessing means 32 acquires the window temperature from the window temperature sensor 10 (step S102).
  • step S103 the guessing means 32 acquires the room temperature from the room temperature sensor 121 and the humidity from the humidity sensor 122.
  • the guessing means 32 calculates the dew point temperature from room temperature and humidity.
  • step S104 the estimation means 32 calculates the temperature difference Tb between the window temperature and the dew point temperature, calculates the dew condensation occurrence rate Rdew, and estimates the dew condensation occurrence.
  • the guessing means 32 passes the information of the dew condensation occurrence rate Rdew to the airflow control means 33 as the dew condensation occurrence information.
  • step S105 the airflow control means 33 acquires the open / close information indicating the open / closed state of the curtain 151 from the open / close sensor 11.
  • step S106 the airflow control means 33 selects one of the normal operation mode, the cold draft cut operation mode, and the circulation operation mode according to the dew condensation generation information and the open / closed state. A specific example will be described below.
  • FIG. 14 is a schematic view showing an example of a normal operation mode when the curtain is in the open state in step S105 of FIG.
  • FIG. 15 is a schematic view showing an example of a normal operation mode when the curtain is in the closed state in step S105 of FIG.
  • the window temperature sensor 10 and the open / close sensor 11 shown in FIG. 1 are not shown in the figure.
  • the airflow control means 33 controls the blower 113 and the wind direction adjusting unit 105 so that the temperature of the entire room becomes the set temperature and the humidity of the entire room becomes the set humidity.
  • the airflow control means 33 controls the wind direction adjusting unit 105 so that the airflow AF1 is formed in front of the load side unit 103.
  • FIG. 16 is a schematic diagram showing an example of the cold draft cut operation mode.
  • the window temperature sensor 10 and the open / close sensor 11 shown in FIG. 1 are omitted from the figure.
  • the airflow control means 33 controls the wind direction adjusting unit 105 to blow warm air from the air outlet 62 shown in FIG. 3 toward the lower side of the window 150.
  • the warm airflow AF2 is mixed with the cold air descending from the window 150 toward the floor surface. In this way, the problem that the temperature near the floor surface does not rise during the heating operation of the load side unit 103 is solved. As a result, the indoor environment can be improved and the user's comfort can be enhanced.
  • FIG. 17 is a schematic diagram showing an example of a circulation operation mode when the curtain is in the open state in step S105 of FIG.
  • FIG. 18 is a schematic view showing an example of a circulation operation mode when the curtain is in the closed state in step S105 of FIG. In FIGS. 17 and 18, it is omitted that the window temperature sensor 10 and the open / close sensor 11 shown in FIG. 1 are shown in the figure.
  • the airflow control means 33 controls the wind direction adjusting unit 105 so that the airflow AF3 is formed horizontally in two directions (the direction of the Y-axis arrow and the direction opposite to the Y-axis arrow).
  • the number of rotations of the blower 113 is increased to maximize the air volume.
  • the airflow AF3 in one direction is formed in the direction of the window 150.
  • the curtain 151 is in the closed state, it is possible to prevent cold air from staying between the curtain 151 and the window 150 due to the fluctuation of the curtain 151.
  • the airflow control means 33 may increase the air volume by increasing the rotation speed of the blower 113 as compared with the case where the curtain 151 is in the open state. In this case, since the closed curtain 151 sways more greatly, the effect of suppressing the retention of cold air between the curtain 151 and the window 150 is improved.
  • the airflow control means 33 may swing one or both of the first wind direction plate 4 and the second wind direction plate 5 in the circulation operation mode.
  • FIG. 19 is a schematic view showing another example of the circulation operation mode when the curtain is in the open state in step S105 of FIG.
  • FIG. 20 is a schematic view showing another example of the circulation operation mode when the curtain is in the closed state in step S105 of FIG.
  • the window temperature sensor 10 and the open / close sensor 11 shown in FIG. 1 are not shown in the figure.
  • the airflow control means 33 swings one or both of the first wind direction plate 4 and the second wind direction plate 5, and air in the direction of the window 150 based on the position information of the window 150. Is blowing out.
  • the air conditioner 100 of the first embodiment has the control device 30.
  • the control device 30 is based on the detection results of the window environment detection unit 2 that detects the window temperature indicating the temperature of the window 150 in the room and the open / closed state of the curtain 151 and the dew point temperature detection unit 12 that detects the dew point temperature in the room. , Controls the load side unit 103 that adjusts the air in the room.
  • the control device 30 selects an operation mode corresponding to the dew condensation generation information based on the window temperature and the dew point temperature and the opening / closing information indicating the opening / closing state of the curtain 151, and causes the load side unit 103 to execute the selected operation mode.
  • the operation mode executed by the load side unit 103 is selected according to the state of whether or not dew condensation occurs on the window 150 and the state of whether or not the curtain 151 is open or closed. Therefore, the comfort of the indoor environment can be improved.
  • the load-side unit 103 performs a circulation operation to increase the wind speed of the glass surface of the window 150, thereby forming the glass surface of the window 150. Condensation is suppressed. As a result, it is possible to prevent the skeleton of the house from corroding and maintain the building in good condition. In addition, since the growth of mold due to dew condensation can be prevented, a hygienic indoor environment is maintained. Further, when the curtain 151 is open even if the dew condensation rate is not high during the heating operation, the load side unit 103 operates to prevent the cold draft, so that the temperature near the floor surface is maintained at a low state. It is possible to prevent it from being stored.
  • FIG. 21 is a diagram for explaining the control performed by the control device of the air conditioner according to the first modification.
  • the load side unit 103 is provided with an infrared sensor 13 for detecting the temperature distribution in the indoor space.
  • the infrared sensor 13 is communicated with the control device 30.
  • the infrared sensor 13 is provided, for example, on the front side (X-axis arrow direction) of the housing 60 shown in FIG.
  • FIG. 22 is a schematic diagram showing an example of the target space in which the temperature distribution is detected by the infrared sensor shown in FIG. 21.
  • FIG. 22 is a schematic view of FIG. 1 when the room is viewed from the load side unit 103 side.
  • FIG. 23 is an image diagram showing an example when the temperature distribution detected by the infrared sensor shown in FIG. 21 is displayed on a two-dimensional image.
  • the image Img1 shown in FIG. 23 shows the temperature distribution when the load side unit 103 performs the heating operation and the curtain 151 is in the open state in the room shown in FIG.
  • the image Img1 of FIG. 23 it is shown that the higher the density of the dot pattern, the higher the temperature. Since warm air tends to stay closer to the ceiling CE than the floor FL, the temperature of the wall WA becomes higher as it approaches the ceiling CE than the floor FL. Since the temperature of the floor FL is low, the dot pattern is not displayed.
  • the temperature of the window 150 is lower than the temperature of the wall WA.
  • the temperature of the window 150 is displayed at the same temperature as the floor surface FL, but may be lower than the temperature of the floor surface FL. Since the curtain 151 is located close to the window 150, cold air is transmitted through the window 150. Therefore, the temperature of the curtain 151 is lower than the temperature of the wall WA.
  • the estimation means 32a extracts a rectangle having a temperature lower than the temperature of the wall WA in a region other than the floor surface FL by performing an image analysis process on the image Img1 shown in FIG. 23, and extracts the extracted rectangle into the position of the window 150. Is determined.
  • the guessing means 32a determines the temperature detected at the determined position of the window 150 as the window temperature. Further, the guessing means 32a determines that the curtain 151 is in the open state when it determines that there are rectangles having a temperature higher than the window temperature on both sides of the window 150 by performing image analysis processing.
  • the infrared sensor 13 determines the position of the window 150
  • the infrared sensor 13 detects the direction of the window 150 with reference to the load side unit 103, and stores the position information indicating the direction of the window 150 in the memory 131 shown in FIG. In this case, it is not necessary to store the position information in the memory 131 in advance.
  • FIG. 24 is an image diagram showing another example when the temperature distribution detected by the infrared sensor shown in FIG. 21 is displayed on a two-dimensional image.
  • the image Img2 shown in FIG. 24 shows the temperature distribution when the load side unit 103 performs the heating operation and the curtain 151 is in the closed state in the room shown in FIG.
  • the guessing means 32a extracts a rectangle having a temperature lower than the temperature of the wall WA based on the position information of the window 150 by performing an image analysis process on the image Img2 shown in FIG. 24. Then, the guessing means 32a determines that the entire rectangle is the curtain 151 when the rectangular portion cannot be separated into the window 150 and the curtain 151 from the information on the temperature distribution of the extracted rectangle. In this case, the guessing means 32a determines that the curtain 151 is in the closed state.
  • the guessing means 32a cannot detect the temperature of the window 150 shown in FIG. 22, but from the temperature of the curtain 151, according to a predetermined temperature calculation formula. Estimate the temperature of the window 150.
  • the estimation means 32a may estimate the thickness of the curtain 151 from the information on the temperature distribution of the curtain 151 detected by the infrared sensor 13.
  • the airflow control means 33 may increase the air volume in the circulation operation mode as the thickness of the curtain 151 estimated by the estimation means 32a increases.
  • Modification 2 In the first embodiment, the case where the air conditioner 100 has the control device 30 has been described with reference to FIGS. 1 to 24, but a part of the configuration of the control device 30 is the air conditioner 100. It may be provided separately.
  • FIG. 25 is a block diagram showing a configuration example of the air conditioning system according to the second modification.
  • the air conditioning system 200 includes an air conditioning device 100a, a control device 30b, and a communication device 70 connected to the window temperature sensor 10 and the open / close sensor 11.
  • the control device 30b is, for example, an information processing device such as a computer and a server.
  • the communication device 70 is, for example, a smart speaker.
  • the air conditioner 100a has a control device 30a instead of the control device 30 shown in FIG.
  • the control device 30b, the communication device 70, and the air conditioner 100a are connected via the network 50.
  • the network 50 is, for example, the Internet.
  • the control device 30a, the control device 30b, and the communication device 70 transmit and receive information to and from each other using a predetermined communication protocol.
  • the communication protocol is, for example, TCP / IP (Transmission Control Protocol / Internet Protocol).
  • the control device 30b controls the air conditioner 100a via the network 50.
  • FIG. 26 is a functional block diagram showing a configuration example of the two control devices shown in FIG. 25.
  • the control device 30b has a guessing means 32 and an airflow controlling means 33.
  • the control device 30b receives the detected values of the window temperature sensor 10 and the open / close sensor 11 via the communication device 70.
  • the airflow control means 33 transmits control information for the blower 113 and the wind direction adjusting unit 105 to the control device 30a via the network 50.
  • the control device 30a has a refrigeration cycle control means 31.
  • the refrigeration cycle control means 31 calculates the dew point temperature using the room temperature detected by the room temperature sensor 121 and the humidity detected by the humidity sensor 122.
  • the refrigeration cycle control means 31 transmits the calculated dew point temperature information to the control device 30b via the network 50.
  • the refrigeration cycle control means 31 controls the rotation speed of the blower 113 based on the input air volume, and based on the input air direction.
  • the wind direction adjusting unit 105 is controlled.
  • the refrigeration cycle control means 31 controls the blower 113 and the wind direction adjusting unit 105 according to the control information.
  • the user connects the existing air conditioner 100a to the control device 30b via the network 50 without purchasing the air conditioner 100 provided with the control device 30.
  • the effect of the first embodiment can be obtained.
  • control device 30a communicates with the control device 30b via the network 50
  • the control device 30a communicates with the control device 30b via the communication device 70 and the network 50. May be good.
  • the control device 30a is configured to be communicatively connected to the window temperature sensor 10 and the open / close sensor 11, the control device 30a may transmit the detection values of these sensors to the control device 30b via the network 50.
  • Embodiment 2 in the air conditioner 100 described in the first embodiment, a blind is provided outside the window 150, and control of the blind is added to the first embodiment.
  • the same components as those described in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • FIG. 27 is an external view showing an example of a case where the load side unit of the air conditioning system according to the second embodiment is installed in the air-conditioned space.
  • the air conditioner 100 according to the second embodiment also has the window temperature sensor 10 and the open / close sensor 11 shown in FIG. 1, but the window temperature sensor 10 and the open / close sensor 11 are omitted from FIG. 27. ..
  • FIG. 28 is a functional block diagram showing a configuration example of the control device according to the second embodiment.
  • the air conditioning system of the second embodiment has an electric blind 153 provided on the outside of the window 150.
  • the electric blind 153 is provided with a blind open / close sensor 14 that detects an open / closed state of the electric blind 153.
  • the air conditioner 100 has a storage device 40.
  • the electric blind 153, the blind open / close sensor 14, and the storage device 40 are connected to the control device 30c shown in FIG. 28 via a signal line.
  • the electric blind 153, the blind open / close sensor 14, and the storage device 40 may be wirelessly connected to the control device 30c.
  • the storage device 40 serves as a secondary storage device.
  • the storage device 40 is, for example, a non-volatile semiconductor memory such as a flash memory, an EPROM (Erasable Project ROM), or an EEPROM (Electrically Erasable Project ROM).
  • the storage device 40 may be an HDD (Hard Disk Drive).
  • the storage device 40 stores the window temperature detected by the window temperature sensor 10 in time series.
  • the storage device 40 may store data for communication between each refrigerant device included in the air conditioner 100 and the control device 30c.
  • the control device 30c includes a blind control means 34 that controls the opening and closing of the electric blind 153.
  • the guessing means 32 acquires the window temperature at regular intervals, and stores the acquired window temperature in the storage device 40 in chronological order. Then, the estimation means 32 performs one or both of the first dew condensation estimation determination and the second dew condensation estimation determination.
  • the dew condensation occurrence rate is calculated by comparing the window temperature and the dew point temperature, and the risk of dew condensation is determined.
  • the second dew condensation estimation determination calculates the time temperature difference ⁇ Tt, which is the temperature difference between two adjacent window temperatures in the time series, and estimates the risk of dew condensation due to the decreasing tendency of the time temperature difference ⁇ Tt.
  • the time temperature difference ⁇ Tt is a value indicating a change in window temperature that occurs during a time t of a certain cycle.
  • the guessing means 32 compares the time temperature difference ⁇ Tt with each of the first temperature difference threshold value and the second temperature difference threshold value to determine the presence or absence of dew condensation.
  • the first temperature difference threshold value and the second temperature difference threshold value have a relationship of ⁇ first temperature difference threshold value ⁇ second temperature difference threshold value.
  • the first temperature difference threshold is 2 ° C
  • the second temperature difference threshold is 5 ° C.
  • the second dew condensation estimation determination is based on the premise that the window temperature has not reached the dew point temperature.
  • FIG. 29 is a table showing an example of control performed by the control device according to the second embodiment.
  • the identifiers of Dem1-1 to Dem1-3 are assigned in order to distinguish which condition the dew condensation occurrence risk estimated by the first dew condensation estimation determination corresponds to. Further, in order to distinguish which condition the dew condensation occurrence risk estimated by the second dew condensation estimation determination corresponds to, the identifiers of Dem2-1 to Dem2-4 are assigned.
  • the control device 30c controls the electric blind 153 and the operation mode described in the first embodiment. As shown in FIG. 29, the types of control are classified into four control modes: a first control mode, a second control mode, a third control mode, and a fourth control mode.
  • FIG. 30 is a schematic diagram showing the first control mode shown in FIG. 29.
  • FIG. 31 is a schematic view showing the second control mode shown in FIG. 29.
  • FIG. 32 is a schematic view showing the third control mode shown in FIG. 29.
  • FIG. 33 is a schematic view showing the fourth control mode shown in FIG. 29.
  • the window temperature sensor 10, the open / close sensor 11, and the blind open / close sensor 14 are not shown in the figure.
  • the first control mode is a mode in which the electric blind 153 is opened and the normal operation mode is selected.
  • the second control mode is a mode in which the electric blind 153 is closed and the normal operation mode is selected.
  • the third control mode is a mode in which the electric blind 153 is closed and the circulation operation mode is selected.
  • the fourth control mode is a mode in which the electric blind 153 is closed and the circulation operation mode is selected.
  • the estimation means 32 performs one or both of the first dew condensation estimation determination and the second dew condensation estimation determination shown in FIG. 29. For example, the estimation means 32 estimates the occurrence of dew condensation by the OR determination of the first dew condensation estimation determination and the second dew condensation estimation determination. When the result of the first dew condensation estimation determination and the result of the second dew condensation estimation determination are different, the estimation means 32 preferentially adopts the result of the first dew condensation estimation determination. For example, when the estimation means 32 estimates the dew condensation occurrence risk corresponding to the condition Dem1-1 by the first dew condensation estimation determination and the dew condensation occurrence risk corresponding to the condition Dem2-2 by the second dew condensation estimation determination, the condition Dem1 Adopt the dew condensation risk corresponding to -1.
  • the airflow control means 33 selects the control mode according to the dew condensation generation information and the open / closed state indicating the open / closed state of the curtain 151.
  • the blind control means 34 selects the control mode according to the dew condensation occurrence information and the open / closed state.
  • FIG. 27 shows a case where one window 150 is provided in the room, but also in the second embodiment, a plurality of windows 150 may be provided in the room. Further, the window temperature sensor 10 may be provided in each of the plurality of windows 150. In this case, the estimation means 32 uses the temperature difference Tb having the smallest value among the plurality of temperature differences Tb detected by the plurality of window temperature sensors 10 for calculating the dew condensation occurrence rate.
  • FIG. 34 is a flowchart showing an example of the operation procedure of the air conditioner according to the second embodiment.
  • the estimation means 32 performs the first dew condensation estimation determination among the two dew condensation estimation determinations shown in FIG. 29 will be described.
  • step S201 the refrigeration cycle control means 31 determines whether or not the load side unit 103 is performing the heating operation.
  • the guessing means 32 acquires the window temperature from the window temperature sensor 10 (step S202). Then, the guessing means 32 stores the acquired window temperature in the storage device 40.
  • the guessing means 32 acquires the room temperature from the room temperature sensor 121 and the humidity from the humidity sensor 122 (step S203).
  • the guessing means 32 calculates the dew point temperature from room temperature and humidity.
  • the airflow control means 33 determines whether or not the curtain 151 is open from the detection value of the open / close sensor 11. As a result of the determination in step S204, when the curtain is in the open state, the airflow control means 33 notifies the guessing means 32 that the curtain 151 is in the open state.
  • the estimation means 32 determines that the curtain 151 is in the open state, the temperature difference Tb between the window temperature and the dew point temperature is calculated, the dew condensation occurrence rate Rdew is calculated, and the dew condensation occurrence is estimated (step S205).
  • the guessing means 32 notifies the airflow control means 33 and the blind control means 34 of the guessing result.
  • step S210 when the curtain is in the closed state, the airflow control means 33 and the blind control means 34 select the fourth control mode (step S211).
  • the blind control means 34 closes the electric blind 153, and the airflow control means 33 operates the load side unit 103 in the circulation operation mode. Further, when the curtain is closed, the risk of dew condensation is further increased. Therefore, as shown in FIG. 33, the blind control means 34 closes the electric blind 153, and the airflow control means 33 circulates the load side unit 103. Operate in mode. As a result, the influence of the outside air on the window 150 is further suppressed, and the occurrence of dew condensation is suppressed.
  • the estimation means 32 performs the first dew condensation estimation determination
  • the second dew condensation estimation determination may be performed instead of the first dew condensation estimation determination
  • the estimation means 32 may perform the second dew condensation estimation determination. Both 1 dew condensation estimation determination and 2nd dew condensation estimation determination may be performed.
  • the estimation means 32 adopts the result of the first dew condensation estimation determination.
  • the air conditioning system of the second embodiment includes an air conditioning device 100 and an electric blind 153.
  • the air conditioner 100 has a control device 30c that controls the load side unit 103.
  • the control device 30c includes a blind control means 34 for controlling the opening and closing of the electric blind 153, in addition to the guessing means 32 and the airflow control means 33.
  • the airflow control means 33 and the blind control means 34 select one control mode from a plurality of control modes in response to the dew condensation generation information and the open / close information indicating the open / closed state of the curtain 151.
  • the airflow control means 33 causes the load side unit 103 to adjust the air according to the selected control mode.
  • the blind control means 34 controls the opening and closing of the electric blind 153 according to the selected control mode.
  • the open / closed state of the electric blind 153 and the operation mode of the load side unit 103 are automatically switched based on the dew condensation occurrence rate indicating the risk of dew condensation and the open / closed state of the curtain 151. As a result, it is possible to suppress the formation of dew condensation on the glass surface of the window 150.
  • the estimation means 32 may perform the second dew condensation estimation determination.
  • the guessing means 32 calculates the time-series change in the window temperature, and determines whether the window temperature tends to be maintained or lowered from the change with the passage of time, thereby causing dew condensation. You can guess.
  • the second embodiment may be applied to one of the modified examples 1 and the modified example 2 or a combination of both modified examples.
  • the storage device 40 is provided in an information processing device such as an external server, so that it is not necessary to provide the air conditioner 100 with a secondary storage device having a large capacity.
  • the storage device 40 of the second embodiment when the storage device 40 of the second embodiment is provided in the information processing device such as the server including the control device 30b, a plurality of air conditioning devices that are communicated and connected to the control device 30b via the network 50. You may store 100 driving information.
  • the estimation means 32 may perform the second dew condensation estimation determination described in the second embodiment instead of the first dew condensation estimation determination.

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

Abstract

La présente invention concerne un dispositif de commande destiné à commander une unité côté charge pour ajuster l'air dans un espace devant être climatisé sur la base de résultats de détection provenant d'une unité de détection d'environnement de fenêtre pour détecter une température de fenêtre, qui exprime la température d'une fenêtre fournie à l'espace devant être climatisé, et détecter également l'état ouvert/fermé d'un rideau disposé sur ladite fenêtre, et également à partir d'une unité de détection de température de point de rosée pour détecter la température de point de rosée dans l'espace devant être climatisé, le dispositif de commande étant configuré de manière à sélectionner un mode d'opération qui correspond à des informations d'occurrence de condensation de rosée sur la base de la température de fenêtre et de la température de point de rosée, et également aux informations ouvertes/fermées exprimant l'état ouvert/fermé du rideau, et amener l'unité côté charge à exécuter le mode d'opération sélectionné.
PCT/JP2019/038693 2019-10-01 2019-10-01 Dispositif de commande, dispositif de climatisation, système de climatisation et procédé de commande WO2021064850A1 (fr)

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PCT/JP2019/038693 WO2021064850A1 (fr) 2019-10-01 2019-10-01 Dispositif de commande, dispositif de climatisation, système de climatisation et procédé de commande

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