WO2016067703A1 - Air conditioning device and air conditioning system - Google Patents

Air conditioning device and air conditioning system Download PDF

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Publication number
WO2016067703A1
WO2016067703A1 PCT/JP2015/072376 JP2015072376W WO2016067703A1 WO 2016067703 A1 WO2016067703 A1 WO 2016067703A1 JP 2015072376 W JP2015072376 W JP 2015072376W WO 2016067703 A1 WO2016067703 A1 WO 2016067703A1
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WO
WIPO (PCT)
Prior art keywords
air
supply
air passage
exhaust
passage
Prior art date
Application number
PCT/JP2015/072376
Other languages
French (fr)
Japanese (ja)
Inventor
隼一郎 尾屋
貴也 下川
有澤　浩一
裕次 ▲高▼山
守 濱田
草太 小前
史人 竹内
中村　伸
Original Assignee
三菱電機株式会社
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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
Publication of WO2016067703A1 publication Critical patent/WO2016067703A1/en

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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
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

Definitions

  • the present invention relates to an air conditioner and an air conditioning system for supplying air into a room with a blower.
  • Patent Document 1 an air conditioner that supplies air into a room using a blower has been used.
  • air is supplied into the room via an air supply duct connecting the air conditioner and the room.
  • Dust contained in the air passing through the duct may adhere to the inner wall surface of the air supply duct connecting the air conditioner and the room, or mold may be generated. Therefore, there is a desire to clean the inside of the air supply duct.
  • the labor and cost for cleaning may be a problem.
  • the present invention has been made in view of the above, and an object thereof is to obtain an air conditioner capable of easily cleaning an air supply duct at a reduced cost.
  • an air conditioner generates a supply air passage communicating with a room and a first air flow directed indoors inside the supply air path.
  • a second air blower that generates a second air flow from the room toward the branch air passage inside the air supply side downstream portion.
  • the air supply side downstream portion is a part of the air supply air passage and is located on the indoor side of the branched air passage
  • the air supply side upstream portion is a part of the air supply air passage.
  • the air passage is located on the upstream side in the first air flow from the supply side downstream portion.
  • the air conditioner according to the present invention produces an effect that the air supply duct can be easily cleaned at a reduced cost.
  • FIG. 1 The figure which shows schematic structure of the air conditioning system which concerns on Embodiment 1 of this invention.
  • the figure which shows schematic structure of the cleaning mechanism part with which the air conditioning system which concerns on Embodiment 1 is provided. It is a figure which shows schematic structure of the air conditioning apparatus which concerns on Embodiment 1, Comprising: The figure which shows the state in air conditioning driving
  • the flowchart which shows an example of the operation
  • FIG. The flowchart which shows the other example of the operation
  • FIG. The flowchart which shows the further another example of the operation
  • FIG. The flowchart which shows the further another example of the operation
  • FIG. The figure which shows the modification of the air conditioning apparatus which concerns on Embodiment 1.
  • FIG. 1 is a diagram showing a schematic configuration of an air conditioning system according to Embodiment 1 of the present invention.
  • the air conditioning system 50 includes an air conditioner 1 provided inside a building 60 and an outdoor unit 2 provided outside the room.
  • the air conditioning system 50 includes an air supply duct 31 and a return air duct 32 that are connected to the air conditioner 1 and extend toward the room 60a, and an outside air duct 33 and an exhaust duct 34 that are connected to the air conditioner 1 and extend outward.
  • the air conditioning system 50 includes a refrigerant pipe 35 that connects the air conditioner 1 and the outdoor unit 2.
  • the air conditioning system 50 also includes an indoor air inlet 41 that is provided at the end of the air supply duct 31 on the indoor 60a side and blows out air.
  • the air conditioning system 50 also includes an indoor air inlet 42 that is provided at the end of the return air duct 32 on the indoor 60a side and sucks air.
  • the air conditioner 1 has a function as an air conditioner that heats or cools air supplied to the room and a function as a heat exchange ventilator that performs ventilation while exchanging heat between indoor air and outdoor air.
  • the air conditioner 1 includes a cleaning mechanism unit 70 that cleans the inside of the air supply duct 31. First, a detailed configuration of the cleaning mechanism unit 70 will be described.
  • FIG. 2 is a diagram illustrating a schematic configuration of the cleaning mechanism unit 70 provided in the air conditioning system 50 according to the first embodiment.
  • the cleaning mechanism unit 70 includes a supply air passage 71 that communicates with the room 60 a and a branch air passage 72 that branches from the supply air passage 71.
  • the supply air passage 71 is connected to the supply air duct 31 and the outside air duct 33.
  • the air supply air passage 71 is provided with an air supply air blower 73 that is a first air blower.
  • the air supply blower 73 generates an air flow toward the air supply duct 31, that is, a first air flow toward the room 60a.
  • the first air flow is indicated by an arrow X.
  • a portion of the supply air passage 71 that is closer to the room 60a than a branch portion with the branch air passage 72 is referred to as an air supply side downstream portion 71a, and an upstream side in the first air flow from the air supply side downstream portion 71a. This portion is referred to as an air supply side upstream portion 71b.
  • the air supply blower 73 is provided in the air supply side upstream portion 71b.
  • the branch air passage 72 is provided with a cleaning blower 74 as a second blower.
  • the cleaning blower 74 generates a second air flow from the room 60a toward the branch air passage 72 inside the air supply side downstream portion 71a.
  • the second air flow is indicated by an arrow Y.
  • the air flow is reversed between the operation of the air supply fan 73 and the operation of the cleaning fan 74.
  • a first switching portion 81 is provided at a branch portion between the supply air passage 71 and the branch air passage 72. As shown in FIG. 2, the first switching unit 81 closes one of the branch air passage 72 and the air supply side upstream portion 71 b, so that the air passage communicating with the air supply side downstream portion 71 a It switches to the side upstream part 71b and the branch air path 72.
  • a dust collecting portion 75 is provided in the branch air passage 72.
  • the dust collection unit 75 collects foreign matter contained in the air passing through the branch air passage 72.
  • the dust collecting portion 75 that is contaminated by collecting foreign substances is cleaned or replaced.
  • FIG. 3 is a diagram illustrating a schematic configuration of the air conditioner 1 according to Embodiment 1, and is a diagram illustrating a state during the air conditioning operation.
  • a heat exchanger 76 that heats or cools the air passing through the supply air passage 71 is provided in the supply-side upstream portion 71b.
  • the heat exchanger 76 is connected to the outdoor unit 2 through the refrigerant pipe 35.
  • the air conditioner 1 includes an air supply connection port 11 to which an air supply duct 31 is connected, a return air connection port 12 to which a return air duct 32 is connected, an outside air connection port 13 to which an outside air duct 33 is connected, and an exhaust duct.
  • the housing 3 is formed with the exhaust connection port 14 to which the 34 is connected.
  • a supply air passage 71 for supplying air to the room 60a and an exhaust air passage 77 for exhausting indoor air to the outside are formed inside the housing 3.
  • the supply air passage 71 is an air passage that connects the outside air connection port 13 and the supply air connection port 11
  • the exhaust air passage 77 is an air passage that connects the return air connection port 12 and the exhaust connection port 14. Yes.
  • the exhaust air passage 77 is provided with an exhaust air blower 78 that is a third blower.
  • the exhaust blower 78 generates an air flow toward the exhaust connection port 14, that is, an air flow toward the outside in the exhaust air passage 77.
  • a heat exchange element 79 is provided that exchanges heat between air passing through the supply air passage 71 and air passing through the exhaust air passage 77.
  • a circulation air passage 80 that connects the air supply air passage 71 and the exhaust air passage 77 is provided inside the housing 3.
  • a branch portion of the exhaust air passage 77 with the circulation air passage 80 is located on the outdoor side of the exhaust blower 78.
  • a branching portion of the supply air passage 71 with the circulation air passage 80 is on the outdoor side of the supply air blower 73.
  • the branch air passage 72 is connected to the exhaust air passage 77.
  • a branch portion of the exhaust air passage 77 and the branch air passage 72 is located on the outdoor side of the heat exchange element 79.
  • the exhaust air passage 77 the outside of the exhaust air passage 77 and the branch air passage 72 is referred to as an exhaust side downstream portion 77a, and the indoor side of the exhaust air downstream portion 77a is referred to as an exhaust side upstream portion 77b.
  • the exhaust blower 78 is provided in the exhaust-side upstream portion 77b.
  • a second switching portion 82 is provided at a branch portion of the exhaust air passage 77 and the branch air passage 72.
  • the second switching unit 82 closes either the branch air passage 72 or the exhaust side upstream portion 77b, so that the air passage communicating with the exhaust side downstream portion 77a is changed to the exhaust side upstream portion 77b and the branch air passage 72. Switch to.
  • the air conditioner 1 includes a control unit 4 that controls the operations of the blowers 73, 74, 78 and the switching units 81, 82.
  • the control unit 4 stops the cleaning blower 74 and blocks the branch air passage 72 between the first switching unit 81 and the second switching unit 82. I can. This operating state is referred to as air conditioning operation.
  • indoor air is exhausted to the outside through the indoor suction port 42, the return air duct 32, the exhaust air duct 77, and the exhaust duct 34 by the operation of the exhaust blower 78. Further, by the operation of the air supply blower 73, outdoor air is supplied to the room 60a through the outside air duct 33, the air supply air passage 71, the air supply duct 31, and the indoor air supply port 41. Part of the air passing through the exhaust air passage 77 flows into the supply air passage 71 via the circulation air passage 80 and is returned to the room 60a.
  • the air that has flowed into the supply air passage 71 via the circulation air passage 80 and the outside air that passes through the supply air passage 71 are heated or cooled by the heat exchanger 76 and then supplied to the room 60a.
  • air conditioning using the heat exchanger 76 and heat exchange ventilation using the heat exchange element 79 are performed.
  • FIG. 4 is a diagram illustrating a schematic configuration of the air conditioner 1 according to Embodiment 1, and is a diagram illustrating a state during a cleaning operation.
  • the control unit 4 operates the cleaning blower 74, stops the supply blower 73 and the exhaust blower 78, closes the supply-side upstream portion 71 b in the first switching unit 81, and causes the second switching unit 82 to By closing the exhaust-side upstream portion 77b, the air conditioner 1 is brought into the cleaning operation state shown in FIG.
  • the cleaning fan 74 causes the air in the room 60a to pass through the indoor air supply port 41, the air supply duct 31, the air supply side downstream part 71a, the branch air passage 72, the exhaust side downstream part 77a, and the exhaust duct 34. Exhausted outside the room.
  • an air flow in the direction opposite to that during the air conditioning operation can be generated inside the air supply duct 31. Therefore, the air supply duct 31 can be cleaned by discharging dust attached to the inner wall surface of the air supply duct 31 to the outside by the air flow generated in the air supply duct 31 during the cleaning operation.
  • the air supply duct 31 can be cleaned without inserting the cleaning tool into the air supply duct 31 and without contacting the air supply duct 31. Therefore, even if it is the air supply duct 31 provided in the wall or the ceiling, it becomes possible to perform cleaning easily at a reduced cost.
  • the air supply blower 73 is provided in the air supply side upstream portion 71b, it does not contact the airflow flowing from the air supply duct 31 during the cleaning operation. Therefore, it is possible to prevent the supply air blower 73 from being contaminated by dust contained in the airflow flowing from the supply air duct 31 during the cleaning operation. Similarly, contamination of the heat exchanger 76 provided in the supply side upstream portion 71b can also be prevented.
  • the exhaust blower 78 since the exhaust blower 78 is provided in the exhaust-side upstream portion 77b, it does not come into contact with the airflow flowing from the air supply duct 31 during the cleaning operation. Therefore, it is possible to prevent the exhaust blower 78 from being contaminated by dust contained in the airflow flowing from the air supply duct 31 during the cleaning operation.
  • the air volume of the cleaning blower 74 is made larger than the air volume of the air supply fan 73, and during the cleaning operation than during the air conditioning operation. It is preferable to allow air to pass through the air supply duct 31 with a large air volume. However, since there is dust that rises when the air flow is reversed in the air-conditioning operation, the air volume of the cleaning fan 74 does not necessarily need to be larger than the air volume of the supply fan 73.
  • the dust discharged during the cleaning operation can be collected by the dust collecting portion 75.
  • the branch air passage 72 is connected to the exhaust side downstream portion 77a. Even if it is not provided, dust can be discharged outside the room. Therefore, in the configuration shown in FIGS. 3 and 4, the dust collection unit 75 may be omitted.
  • the air conditioning system 50 includes a cleaning promotion unit 43 in the indoor air supply port 41 in order to improve the cleaning efficiency during the cleaning operation.
  • the heater brought into contact with the air supply duct 31 may be used as the cleaning promoting unit 43.
  • the air sucked into the air supply duct 31 through the indoor suction port 42 can be heated.
  • a sterilizing effect can be obtained.
  • the heater since the heater is in contact with the air supply duct 31, the heat of the heater can be directly transmitted to the air supply duct 31 to increase the temperature of the air supply duct 31. Thereby, the improvement of a sterilization effect can be aimed at.
  • the heater used for the cleaning promoting part 43 is a mesh made of nichrome wire, the contact area with air can be increased. Thereby, the temperature of air and the supply duct 31 can be raised more efficiently.
  • the ion generator may be used as the cleaning promotion unit 43.
  • the ion generator is a means for generating ions by a discharge phenomenon.
  • the ion generator generates both positive ions and / or negative ions.
  • ions can be sent into the air supply duct 31 by being included in the air sucked into the air supply duct 31. Due to the ions fed into the air supply duct 31, dust attached to the inner wall surface of the air supply duct 31 can be lifted. Thereby, dust becomes easy to be peeled off by the air flow generated in the air supply duct 31 during the cleaning operation, and the cleaning efficiency can be improved.
  • a sprayer that sprays the fungicide may be used as the cleaning promoting unit 43.
  • the fungicide is a chlorine or alcohol fungicide.
  • the antifungal agent can be sent into the air supply duct 31 by being included in the air sucked into the air supply duct 31.
  • the fungicides sent into the air supply duct 31 can suppress the occurrence of mold in the air supply duct 31 after the end of the cleaning operation. This makes it possible to supply cleaner air to the room 60a during the air conditioning operation.
  • operation can be suppressed by suppressing generation
  • the control unit 4 described above also controls the operation of the cleaning promoting unit 43.
  • FIG. 5 is a flowchart illustrating an example of an operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment.
  • the control unit 4 determines whether or not it is time to perform a cleaning operation. If it is time to perform the cleaning operation, it is notified in step S2 that it is time to perform the cleaning operation.
  • An example of the notification method is to display on the operation unit operated by the user. The determination as to whether it is time to perform the cleaning operation is performed based on the accumulated time of the air conditioning operation or the air volume in the air supply duct 31. Note that the criterion for determining whether it is time to perform the cleaning operation is not limited to this. The time when the cleaning operation is performed may be set by the user.
  • step S3 the time for actually performing the cleaning operation is set by the user who has recognized that it is time to perform the cleaning operation by notification. Since the air conditioning operation is not performed during the cleaning operation, the user can set the start time and the end time so that the cleaning operation is performed when the user is not in the room 60a.
  • step S4 when the control unit 4 determines that the start time is reached, the cleaning operation by the air conditioner 1 is started in step S5. Thereafter, when the control unit 4 determines that the end time has come in step S6, the cleaning operation is ended in step S7.
  • FIG. 6 is a flowchart showing another example of the operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment.
  • the control unit 4 determines whether it is time to perform a cleaning operation. When it is time to perform the cleaning operation, the control unit 4 determines whether or not there is a person in the room 60a in step S12. Whether or not there is a person in the room 60a is determined using a human sensor (not shown).
  • the human sensor includes a thermo sensor and an optical camera.
  • step S13 the cleaning operation by the air conditioner 1 is started in step S13.
  • step S14 the controller 4 determines whether a person has returned to the room 60a. If it is determined that a person has returned to the room 60a, the cleaning operation is stopped in step S17, and the process returns to step S12. If it is determined in step S15 that a predetermined time has elapsed from the start of the cleaning operation without returning to the room 60a, the cleaning operation is terminated in step S16.
  • the predetermined time during which the cleaning operation is continued is a time set according to the length and thickness of the air supply duct 31 and is a time when dust in the air supply duct 31 is considered to be sufficiently discharged. .
  • FIG. 7 is a flowchart showing still another example of the operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment.
  • the case where spraying of the fungicide is not performed by the cleaning promoting unit 43 but performed manually by the user is taken as an example.
  • the control unit 4 starts the cleaning operation by the air conditioner 1 in step S22. While the cleaning operation is being performed, the user sprays a fungicide into the air supply duct 31 from the indoor air supply port 41 and notifies the air conditioner 1 that the spraying has been completed. Notification of the completion of spraying is performed through an operation unit operated by the user.
  • step S23 the control unit 4 recognizes that the fungicide spray has been completed, and in step S24, determines that a predetermined time has elapsed since recognizing that the fungicide spray has been completed. If so, the cleaning operation is terminated in step S25.
  • the predetermined time for continuing the cleaning operation after recognizing the completion of spraying of the antifungal agent is a time set according to the length and thickness of the air supply duct 31, and the dust in the air supply duct 31 is sufficient. This is the time that is considered to have been discharged or the time that the antifungal agent has been distributed in the air supply duct 31.
  • FIG. 8 is a flowchart showing still another example of the operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment.
  • step S31 when the cleaning operation mode is set by a user operation, the control unit 4 starts the cleaning operation by the air conditioner 1 in step S32.
  • step S33 When it is determined in step S33 that a predetermined time has elapsed since the start of the cleaning operation, the control unit 4 ends the cleaning operation in step S34.
  • the predetermined time during which the cleaning operation is continued is a time set according to the length and thickness of the air supply duct 31 and is a time when dust in the air supply duct 31 is considered to be sufficiently discharged. .
  • the control unit 4 may determine whether the dust collection unit 75 needs to be replaced or cleaned during the cleaning operation and after the cleaning operation is completed. When it is determined that the dust collection unit 75 needs to be replaced or cleaned, the control unit 4 notifies that the dust collection unit 75 needs to be replaced or cleaned.
  • An example of the notification method is to display on the operation unit operated by the user. By recognizing this notification, the user can replace or clean the dust collecting portion 75 at an appropriate time, and suppress the deterioration of the cleaning performance of the air supply duct 31 due to clogging of the dust collecting portion 75. it can.
  • Whether the dust collecting unit 75 needs to be replaced or cleaned can be determined by the number of cleaning operations, the accumulated time, or the air volume during the cleaning operation. Note that the criteria for determining whether the dust collector 75 needs to be replaced or cleaned are not limited to these.
  • the air conditioner 1 can be a heat exchange ventilator including the cleaning mechanism unit 70. it can.
  • the first switching unit 81 may not be configured as one switching device, and is configured by combining a switching device that opens and closes the supply air passage 71 and a switching device that opens and closes the branch air passage 72. Also good.
  • the second switching unit 82 may not be configured as one switching device, and is configured by combining a switching device that opens and closes the exhaust air passage 77 and a switching device that opens and closes the branch air passage 72. Also good.
  • FIG. 9 is a diagram illustrating a modification of the air conditioner 1 according to the first embodiment.
  • a cleaning air discharge port 15 to which a duct can be connected is formed in the housing 3 separately from the air supply connection port 11, the return air connection port 12, the outside air connection port 13, and the exhaust connection port 14.
  • the branch air passage 72 of the cleaning mechanism unit 70 is connected to the cleaning air flow outlet 15 instead of the exhaust air passage 77. Since dust contained in the air passing through the branch air passage 72 during the cleaning operation is collected in the dust collecting portion 75, a duct connected to the cleaning air flow outlet 15 outside the housing 3 is connected to the room 60a. Also good. Further, when the duct connected to the cleaning airflow outlet 15 is communicated with the outside of the room, the dust collecting portion 75 may be omitted.
  • the branch air passage 72 can be shortened and the second switching unit 82 can be omitted as compared with the air conditioner 1 shown in FIGS. Therefore, in the air conditioner 1 according to the modified example, the structure and control can be simplified and the manufacturing cost can be reduced.
  • FIG. 10 is a diagram showing another installation example of the cleaning fan 74 in the first embodiment.
  • the insertion air passage 83 is inserted into the branch air passage 72.
  • the cleaning blower 74 is disposed outside the branch air passage 72 and connected to the insertion air passage 83.
  • the cleaning blower 74 blows air from the insertion air passage 83 into the branch air passage 72.
  • the insertion air passage 83 is inserted into the branch air passage 72 so that air is blown away from the air supply air passage 71.
  • the area A becomes negative pressure, draws air on the supply air passage 71 side, and generates an air flow in the branch air passage 72 in a direction away from the supply air passage 71. Can be made.
  • the air flow in the direction opposite to that during the air conditioning operation can be generated in the air supply duct 31 during the cleaning operation.
  • the cleaning blower 74 is disposed outside the branch air passage 72 through which air flows from the air supply duct 31, the cleaning blower 74 is prevented from being contaminated by dust contained in the air. be able to.
  • FIG. FIG. 11 is a diagram illustrating a schematic configuration of the air-conditioning apparatus according to Embodiment 2 of the present invention, and is a diagram illustrating a state during the air-conditioning operation.
  • FIG. 12 is a diagram illustrating a schematic configuration of the air-conditioning apparatus according to Embodiment 2 of the present invention, and is a diagram illustrating a state during a cleaning operation.
  • symbol is attached
  • the air conditioner 100 is an air conditioner including the cleaning mechanism unit 70. Unlike the first embodiment, the air conditioner 100 does not have a heat exchange element. Cleaning that the supply air connection port 111 to which the supply air duct 31 is connected, the return air connection port 112 to which the return air duct 32 is connected, and the branch air passage 72 from the inside of the housing 103 are connected to the housing 103. Although the airflow discharge port 115 is formed, the outside air connection port and the exhaust connection port communicated with the outdoor are not formed.
  • the air supply air path 71 provided in the cleaning mechanism unit 70 is connected to the air supply connection port 111 to the air supply side downstream part 71 a, and the air supply upstream to the return air air path 180 extending from the return air connection port 112.
  • the part 71b is connected.
  • the indoor air sucked from the return air duct 32 is heated or cooled by the heat exchanger 76 and is passed through the air supply duct 31 to the room. You can supply air.
  • the air supply duct 31 can be cleaned by generating an air flow in the opposite direction to that in the air conditioning operation in the air supply duct 31. According to this cleaning method, the air supply duct 31 can be cleaned without inserting the cleaning tool into the air supply duct 31 and without contacting the air supply duct 31. Therefore, even the air supply duct 31 provided in the wall or ceiling can be easily cleaned at a reduced cost.
  • the air conditioning system 50 is configured by using the air conditioner 1 in which the air conditioning apparatus and the heat exchange ventilator are combined. However, the heat exchange in which the circulation air path 80 and the heat exchanger 76 are omitted from the air conditioner 1.
  • the air conditioning system may be configured by combining the ventilation device and the air conditioning device 100 that is the air conditioning device described in the second embodiment. In this case, if either one of the air conditioner and the heat exchange ventilator includes the cleaning mechanism 70, the air supply duct 31 can be easily and cost-effectively cleaned.
  • part or all of the cleaning mechanism unit 70 may be disposed outside the housings 3 and 103.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
  • Air conditioning system 60 Building, 60a room, 70 Cleaning mechanism part, 71 Air supply path, 71a Air supply side downstream part, 71b Air supply side upstream part, 72 Branch air path, 73 Air supply blower (First blower), 74 cleaning fan (second blower), 75 dust collector, 76 heat exchanger, 77 exhaust air passage, 78 exhaust blower (third blower), 79 heat exchange element, 80 circulation Air path, 81 1st switching part, 82 2nd switching part, 83 insertion air path, 100 air conditioner, 103 housing, 111 air supply connection port, 112 return air connection port, 115 cleaning Flow outlet.
  • Air conditioning mechanism part 71 Air supply path, 71a Air supply side downstream part, 71b Air supply side upstream part, 72 Branch air path, 73 Air supply blower (First blower), 74 cleaning fan (second blower), 75 dust collector, 76 heat exchanger, 77 exhaust air passage, 78 exhaust blower (third blower), 79 heat exchange element, 80 circulation Air path, 81 1st switching part,

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
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Abstract

An air conditioning device is provided with: an air supply passage (71) in communication with a room interior (60a); a first blower (73) for generating, within the air supply passage (71), a first air flow directed toward the room interior (60a); a first switching section (81) for selecting either a state in which an air supply-side downstream section (71a), which is a part of the air supply passage (71), is in communication with an air supply-side upstream section (71b), which is a part of the air supply passage (71), or a state in which the air supply-side downstream section (71a) is in communication with a branch air passage (72); and a second blower (74) for generating, within the air supply-side downstream section (71a), a second air flow directed from the room interior (60a) toward the branch air passage (72).

Description

空調装置および空調システムAir conditioner and air conditioning system
　本発明は、送風機で室内に空気を給気する空調装置および空調システムに関する。 The present invention relates to an air conditioner and an air conditioning system for supplying air into a room with a blower.
　従来、特許文献１に開示されているように、送風機を用いて室内に空気を給気する空調装置が用いられている。このような空調装置では、空調装置と室内との間を結ぶ給気ダクトを介して室内に空気が供給される。 Conventionally, as disclosed in Patent Document 1, an air conditioner that supplies air into a room using a blower has been used. In such an air conditioner, air is supplied into the room via an air supply duct connecting the air conditioner and the room.
特開平９－１１２９６３号公報JP-A-9-112963
　空調装置と室内との間を結ぶ給気ダクトの内壁面には、ダクト内を通過する空気に含まれる埃が付着する場合もあれば、カビが発生する場合もある。そのため、給気ダクトの内部を清掃したいとの要望がある。しかしながら、建物の壁の内部または天井裏に給気ダクトが配管されている場合には、清掃にかかる手間やコストが問題となる場合がある。また、給気ダクトの配管された場所および給気ダクトの長さによっては、給気ダクトの清掃を行うこと自体が困難である場合もある。 Dust contained in the air passing through the duct may adhere to the inner wall surface of the air supply duct connecting the air conditioner and the room, or mold may be generated. Therefore, there is a desire to clean the inside of the air supply duct. However, when an air supply duct is piped inside the wall of the building or behind the ceiling, the labor and cost for cleaning may be a problem. Further, depending on the place where the air supply duct is piped and the length of the air supply duct, it may be difficult to clean the air supply duct itself.
　本発明は、上記に鑑みてなされたものであって、コストを抑えて手軽に給気ダクトの清掃を行うことのできる空調装置を得ることを目的とする。 The present invention has been made in view of the above, and an object thereof is to obtain an air conditioner capable of easily cleaning an air supply duct at a reduced cost.
　上述した課題を解決し、目的を達成するために、本発明に係る空調装置は、室内に連通される給気風路と、給気風路の内部に室内に向けた第１の空気流を発生させる第１の送風機と、給気風路から分岐された分岐風路と、給気側下流部が給気側上流部に連通された状態、または給気側下流部が分岐風路に連通された状態のいずれかの状態に切り替える第１の切り替え部と、給気側下流部の内部に室内から分岐風路に向けた第２の空気流を発生させる第２の送風機と、を備える。また、給気側下流部は、給気風路の一部であって分岐風路との分岐部分よりも室内側となる風路であり、給気側上流部は、給気風路の一部であって給気側下流部よりも第１の空気流における上流側となる風路である。 In order to solve the above-described problems and achieve the object, an air conditioner according to the present invention generates a supply air passage communicating with a room and a first air flow directed indoors inside the supply air path. The first blower, the branch air passage branched from the air supply air passage, and the state where the air supply side downstream portion communicates with the air supply side upstream portion, or the state where the air supply side downstream portion communicates with the branch air passage And a second air blower that generates a second air flow from the room toward the branch air passage inside the air supply side downstream portion. In addition, the air supply side downstream portion is a part of the air supply air passage and is located on the indoor side of the branched air passage, and the air supply side upstream portion is a part of the air supply air passage. Thus, the air passage is located on the upstream side in the first air flow from the supply side downstream portion.
　本発明に係る空調装置によれば、コストを抑えて手軽に給気ダクトの清掃を行うことができるという効果を奏する。 The air conditioner according to the present invention produces an effect that the air supply duct can be easily cleaned at a reduced cost.
本発明の実施の形態１に係る空調システムの概略構成を示す図The figure which shows schematic structure of the air conditioning system which concerns on Embodiment 1 of this invention. 実施の形態１に係る空調システムが備える清掃機構部の概略構成を示す図The figure which shows schematic structure of the cleaning mechanism part with which the air conditioning system which concerns on Embodiment 1 is provided. 実施の形態１に係る空調装置の概略構成を示す図であって、空調運転中の状態を示す図It is a figure which shows schematic structure of the air conditioning apparatus which concerns on Embodiment 1, Comprising: The figure which shows the state in air conditioning driving | operation 実施の形態１に係る空調装置の概略構成を示す図であって、清掃運転中の状態を示す図It is a figure which shows schematic structure of the air conditioner which concerns on Embodiment 1, Comprising: The figure which shows the state in cleaning operation 実施の形態１に係る空調装置の清掃運転時の動作手順の一例を示すフローチャートThe flowchart which shows an example of the operation | movement procedure at the time of the cleaning driving | operation of the air conditioning apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る空調装置の清掃運転時の動作手順の他の例を示すフローチャートThe flowchart which shows the other example of the operation | movement procedure at the time of the cleaning driving | operation of the air conditioning apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る空調装置の清掃運転時の動作手順のさらに他の例を示すフローチャートThe flowchart which shows the further another example of the operation | movement procedure at the time of the cleaning operation of the air conditioning apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る空調装置の清掃運転時の動作手順のさらに他の例を示すフローチャートThe flowchart which shows the further another example of the operation | movement procedure at the time of the cleaning operation of the air conditioning apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る空調装置の変形例を示す図The figure which shows the modification of the air conditioning apparatus which concerns on Embodiment 1. 実施の形態１における清掃用送風機の他の設置例を示す図The figure which shows the other example of installation of the air blower for cleaning in Embodiment 1. 本発明の実施の形態２に係る空調装置の概略構成を示す図であって、空調運転中の状態を示す図It is a figure which shows schematic structure of the air conditioning apparatus which concerns on Embodiment 2 of this invention, Comprising: The figure which shows the state in air conditioning driving | operation 本発明の実施の形態２に係る空調装置の概略構成を示す図であって、清掃運転中の状態を示す図It is a figure which shows schematic structure of the air conditioning apparatus which concerns on Embodiment 2 of this invention, Comprising: The figure which shows the state in cleaning operation
　以下に、本発明の実施の形態に係る空調装置および空調システムを図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 Hereinafter, an air conditioner and an air conditioning system according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.
実施の形態１．
　図１は、本発明の実施の形態１に係る空調システムの概略構成を示す図である。空調システム５０は、建物６０の内部に設けられた空調装置１と、室外に設けられた室外機２とを備える。また、空調システム５０は、空調装置１に接続されて室内６０ａに向けて延びる給気ダクト３１および還気ダクト３２と、空調装置１に接続されて室外に向けて延びる外気ダクト３３および排気ダクト３４とを備える。また、空調システム５０は、空調装置１と室外機２との間を接続する冷媒配管３５を備える。また、空調システム５０は、給気ダクト３１の室内６０ａ側の末端に設けられて空気を吹き出す室内給気口４１を備える。また、空調システム５０は、還気ダクト３２の室内６０ａ側の末端に設けられて空気を吸い込む室内吸込口４２を備える。 Embodiment 1 FIG.
FIG. 1 is a diagram showing a schematic configuration of an air conditioning system according to Embodiment 1 of the present invention. The air conditioning system 50 includes an air conditioner 1 provided inside a building 60 and an outdoor unit 2 provided outside the room. In addition, the air conditioning system 50 includes an air supply duct 31 and a return air duct 32 that are connected to the air conditioner 1 and extend toward the room 60a, and an outside air duct 33 and an exhaust duct 34 that are connected to the air conditioner 1 and extend outward. With. The air conditioning system 50 includes a refrigerant pipe 35 that connects the air conditioner 1 and the outdoor unit 2. The air conditioning system 50 also includes an indoor air inlet 41 that is provided at the end of the air supply duct 31 on the indoor 60a side and blows out air. The air conditioning system 50 also includes an indoor air inlet 42 that is provided at the end of the return air duct 32 on the indoor 60a side and sucks air.
　空調装置１は、室内に給気する空気を加熱または冷却する冷暖房装置としての機能と、室内の空気と室外の空気との間で熱交換させながら換気を行う熱交換換気装置としての機能を有する。空調装置１は、給気ダクト３１の内部の清掃を行う清掃機構部７０を備える。まず、清掃機構部７０の詳細な構成について説明する。 The air conditioner 1 has a function as an air conditioner that heats or cools air supplied to the room and a function as a heat exchange ventilator that performs ventilation while exchanging heat between indoor air and outdoor air. . The air conditioner 1 includes a cleaning mechanism unit 70 that cleans the inside of the air supply duct 31. First, a detailed configuration of the cleaning mechanism unit 70 will be described.
　図２は、実施の形態１に係る空調システム５０が備える清掃機構部７０の概略構成を示す図である。清掃機構部７０は、室内６０ａに連通される給気風路７１と、給気風路７１から分岐された分岐風路７２とを備える。給気風路７１は、給気ダクト３１および外気ダクト３３と接続される。 FIG. 2 is a diagram illustrating a schematic configuration of the cleaning mechanism unit 70 provided in the air conditioning system 50 according to the first embodiment. The cleaning mechanism unit 70 includes a supply air passage 71 that communicates with the room 60 a and a branch air passage 72 that branches from the supply air passage 71. The supply air passage 71 is connected to the supply air duct 31 and the outside air duct 33.
　給気風路７１には、第１の送風機である給気送風機７３が設けられている。給気送風機７３は、給気ダクト３１に向けた空気流、すなわち室内６０ａに向けた第１の空気流を発生させる。なお、図２において第１の空気流は矢印Ｘで示している。 The air supply air passage 71 is provided with an air supply air blower 73 that is a first air blower. The air supply blower 73 generates an air flow toward the air supply duct 31, that is, a first air flow toward the room 60a. In FIG. 2, the first air flow is indicated by an arrow X.
　給気風路７１のうち、分岐風路７２との分岐部分よりも室内６０ａ側となる部分を給気側下流部７１ａと称し、給気側下流部７１ａよりも第１の空気流における上流側となる部分を給気側上流部７１ｂと称す。給気送風機７３は、給気側上流部７１ｂに設けられている。 A portion of the supply air passage 71 that is closer to the room 60a than a branch portion with the branch air passage 72 is referred to as an air supply side downstream portion 71a, and an upstream side in the first air flow from the air supply side downstream portion 71a. This portion is referred to as an air supply side upstream portion 71b. The air supply blower 73 is provided in the air supply side upstream portion 71b.
　分岐風路７２には、第２の送風機である清掃用送風機７４が設けられている。清掃用送風機７４は、給気側下流部７１ａの内部に室内６０ａから分岐風路７２に向けた第２の空気流を発生させる。なお、図２において第２の空気流は矢印Ｙで示している。給気ダクト３１では、給気送風機７３の運転時と清掃用送風機７４の運転時とで空気の流れが逆方向となる。 The branch air passage 72 is provided with a cleaning blower 74 as a second blower. The cleaning blower 74 generates a second air flow from the room 60a toward the branch air passage 72 inside the air supply side downstream portion 71a. In FIG. 2, the second air flow is indicated by an arrow Y. In the air supply duct 31, the air flow is reversed between the operation of the air supply fan 73 and the operation of the cleaning fan 74.
　給気風路７１と分岐風路７２との分岐部分には、第１の切り替え部８１が設けられている。第１の切り替え部８１は、図２に示すように分岐風路７２および給気側上流部７１ｂのいずれか一方を塞ぐことで、給気側下流部７１ａと連通される風路を、給気側上流部７１ｂと分岐風路７２とに切り替える。 A first switching portion 81 is provided at a branch portion between the supply air passage 71 and the branch air passage 72. As shown in FIG. 2, the first switching unit 81 closes one of the branch air passage 72 and the air supply side upstream portion 71 b, so that the air passage communicating with the air supply side downstream portion 71 a It switches to the side upstream part 71b and the branch air path 72.
　分岐風路７２には、集塵部７５が設けられている。集塵部７５は、分岐風路７２を通過する空気に含まれる異物を捕集する。異物を捕集して汚れた集塵部７５は、洗浄または交換される。集塵部７５を設けることで、清掃用送風機７４の運転時に分岐風路７２から排出される空気の清浄化を図ることができる。 In the branch air passage 72, a dust collecting portion 75 is provided. The dust collection unit 75 collects foreign matter contained in the air passing through the branch air passage 72. The dust collecting portion 75 that is contaminated by collecting foreign substances is cleaned or replaced. By providing the dust collecting portion 75, it is possible to purify the air discharged from the branch air passage 72 when the cleaning blower 74 is operated.
　次に、清掃機構部７０が組み込まれた空調装置１の詳細な構成について説明する。図３は、実施の形態１に係る空調装置１の概略構成を示す図であって、空調運転中の状態を示す図である。清掃機構部７０が組み込まれた空調装置１では、給気風路７１を通過する空気を加熱または冷却する熱交換器７６が、給気側上流部７１ｂに設けられている。熱交換器７６は、冷媒配管３５を介して室外機２と接続されている。 Next, a detailed configuration of the air conditioner 1 in which the cleaning mechanism unit 70 is incorporated will be described. FIG. 3 is a diagram illustrating a schematic configuration of the air conditioner 1 according to Embodiment 1, and is a diagram illustrating a state during the air conditioning operation. In the air conditioner 1 in which the cleaning mechanism unit 70 is incorporated, a heat exchanger 76 that heats or cools the air passing through the supply air passage 71 is provided in the supply-side upstream portion 71b. The heat exchanger 76 is connected to the outdoor unit 2 through the refrigerant pipe 35.
　空調装置１は、給気ダクト３１が接続される給気接続口１１と、還気ダクト３２が接続される還気接続口１２と、外気ダクト３３が接続される外気接続口１３と、排気ダクト３４が接続される排気接続口１４とが形成された筐体３を備える。筐体３の内部に、室内６０ａに空気を供給するための給気風路７１および室内の空気を外部に排気するための排気風路７７が形成されている。 The air conditioner 1 includes an air supply connection port 11 to which an air supply duct 31 is connected, a return air connection port 12 to which a return air duct 32 is connected, an outside air connection port 13 to which an outside air duct 33 is connected, and an exhaust duct. The housing 3 is formed with the exhaust connection port 14 to which the 34 is connected. A supply air passage 71 for supplying air to the room 60a and an exhaust air passage 77 for exhausting indoor air to the outside are formed inside the housing 3.
　給気風路７１は、外気接続口１３と給気接続口１１とを連通させる風路であり、排気風路７７は、還気接続口１２と排気接続口１４とを連通させる風路となっている。排気風路７７には、第３の送風機である排気送風機７８が設けられている。排気送風機７８は、排気接続口１４に向けた空気流、すなわち室外に向けた空気流を排気風路７７内に発生させる。 The supply air passage 71 is an air passage that connects the outside air connection port 13 and the supply air connection port 11, and the exhaust air passage 77 is an air passage that connects the return air connection port 12 and the exhaust connection port 14. Yes. The exhaust air passage 77 is provided with an exhaust air blower 78 that is a third blower. The exhaust blower 78 generates an air flow toward the exhaust connection port 14, that is, an air flow toward the outside in the exhaust air passage 77.
　筐体３の内部には、給気風路７１を通過する空気と排気風路７７を通過する空気との間で熱交換させる熱交換素子７９が設けられている。 Inside the housing 3, a heat exchange element 79 is provided that exchanges heat between air passing through the supply air passage 71 and air passing through the exhaust air passage 77.
　筐体３の内部には、給気風路７１と排気風路７７とを連通させる循環風路８０が設けられている。排気風路７７における循環風路８０との分岐部分は、排気送風機７８よりも室外側となっている。給気風路７１における循環風路８０との分岐部分は、給気送風機７３よりも室外側となっている。 Inside the housing 3, a circulation air passage 80 that connects the air supply air passage 71 and the exhaust air passage 77 is provided. A branch portion of the exhaust air passage 77 with the circulation air passage 80 is located on the outdoor side of the exhaust blower 78. A branching portion of the supply air passage 71 with the circulation air passage 80 is on the outdoor side of the supply air blower 73.
　空調装置１では、分岐風路７２が排気風路７７に接続されている。排気風路７７と分岐風路７２の分岐部分は、熱交換素子７９よりも室外側となっている。排気風路７７のうち、排気風路７７と分岐風路７２の分岐部分よりも室外側を排気側下流部７７ａと称し、排気側下流部７７ａよりも室内側を排気側上流部７７ｂと称す。排気送風機７８は、排気側上流部７７ｂに設けられる。 In the air conditioner 1, the branch air passage 72 is connected to the exhaust air passage 77. A branch portion of the exhaust air passage 77 and the branch air passage 72 is located on the outdoor side of the heat exchange element 79. Of the exhaust air passage 77, the outside of the exhaust air passage 77 and the branch air passage 72 is referred to as an exhaust side downstream portion 77a, and the indoor side of the exhaust air downstream portion 77a is referred to as an exhaust side upstream portion 77b. The exhaust blower 78 is provided in the exhaust-side upstream portion 77b.
　排気風路７７と分岐風路７２の分岐部分には、第２の切り替え部８２が設けられている。第２の切り替え部８２は、分岐風路７２および排気側上流部７７ｂのいずれか一方を塞ぐことで、排気側下流部７７ａと連通される風路を、排気側上流部７７ｂと分岐風路７２とに切り替える。 A second switching portion 82 is provided at a branch portion of the exhaust air passage 77 and the branch air passage 72. The second switching unit 82 closes either the branch air passage 72 or the exhaust side upstream portion 77b, so that the air passage communicating with the exhaust side downstream portion 77a is changed to the exhaust side upstream portion 77b and the branch air passage 72. Switch to.
　空調装置１は、各送風機７３，７４，７８および各切り替え部８１，８２の動作を制御する制御部４を備える。制御部４は、給気送風機７３および排気送風機７８を運転させる場合には、清掃用送風機７４を停止させるとともに、第１の切り替え部８１と第２の切り替え部８２とに分岐風路７２を塞がせる。この運転状態を空調運転と称す。 The air conditioner 1 includes a control unit 4 that controls the operations of the blowers 73, 74, 78 and the switching units 81, 82. When the supply air blower 73 and the exhaust air blower 78 are operated, the control unit 4 stops the cleaning blower 74 and blocks the branch air passage 72 between the first switching unit 81 and the second switching unit 82. I can. This operating state is referred to as air conditioning operation.
　空調運転では、排気送風機７８の運転によって、室内吸込口４２、還気ダクト３２、排気風路７７、排気ダクト３４を介して室内の空気が室外に排気される。また、給気送風機７３の運転によって、外気ダクト３３、給気風路７１、給気ダクト３１、室内給気口４１を介して室外の空気が室内６０ａに給気される。また、排気風路７７を通過する空気の一部は、循環風路８０を介して給気風路７１に流入し、室内６０ａに戻される。循環風路８０を介して給気風路７１に流入した空気と、給気風路７１を通過する外気は、熱交換器７６によって加熱または冷却されてから室内６０ａに給気される。空調運転では、熱交換器７６を用いた冷暖房と、熱交換素子７９を用いた熱交換換気が行われる。 In the air conditioning operation, indoor air is exhausted to the outside through the indoor suction port 42, the return air duct 32, the exhaust air duct 77, and the exhaust duct 34 by the operation of the exhaust blower 78. Further, by the operation of the air supply blower 73, outdoor air is supplied to the room 60a through the outside air duct 33, the air supply air passage 71, the air supply duct 31, and the indoor air supply port 41. Part of the air passing through the exhaust air passage 77 flows into the supply air passage 71 via the circulation air passage 80 and is returned to the room 60a. The air that has flowed into the supply air passage 71 via the circulation air passage 80 and the outside air that passes through the supply air passage 71 are heated or cooled by the heat exchanger 76 and then supplied to the room 60a. In the air conditioning operation, air conditioning using the heat exchanger 76 and heat exchange ventilation using the heat exchange element 79 are performed.
　空調装置１では、空調運転とは別に、清掃運転と称す運転状態が実行可能とされる。図４は、実施の形態１に係る空調装置１の概略構成を示す図であって、清掃運転中の状態を示す図である。制御部４は、清掃用送風機７４を運転させ、給気送風機７３および排気送風機７８を停止させ、第１の切り替え部８１に給気側上流部７１ｂを塞がせ、第２の切り替え部８２に排気側上流部７７ｂを塞がせることで、空調装置１を図４に示す清掃運転状態とする。 The air conditioner 1 can execute an operation state called a cleaning operation separately from the air conditioning operation. FIG. 4 is a diagram illustrating a schematic configuration of the air conditioner 1 according to Embodiment 1, and is a diagram illustrating a state during a cleaning operation. The control unit 4 operates the cleaning blower 74, stops the supply blower 73 and the exhaust blower 78, closes the supply-side upstream portion 71 b in the first switching unit 81, and causes the second switching unit 82 to By closing the exhaust-side upstream portion 77b, the air conditioner 1 is brought into the cleaning operation state shown in FIG.
　清掃運転では、清掃用送風機７４によって、室内給気口４１、給気ダクト３１、給気側下流部７１ａ、分岐風路７２、排気側下流部７７ａ、排気ダクト３４を介して室内６０ａの空気が室外に排気される。清掃運転では、給気ダクト３１の内部に空調運転時とは逆方向の空気流を発生させることができる。したがって、清掃運転時に給気ダクト３１に発生する空気流によって、給気ダクト３１の内壁面に付着した埃を室外に排出させて、給気ダクト３１の清掃を行うことができる。この清掃方法によれば、給気ダクト３１内への清掃器具の挿入および給気ダクト３１への接触を行わずに給気ダクト３１を清掃することができる。そのため、壁内または天井内に設けられた給気ダクト３１であってもコストを抑えて手軽に清掃を行うことが可能となる。 In the cleaning operation, the cleaning fan 74 causes the air in the room 60a to pass through the indoor air supply port 41, the air supply duct 31, the air supply side downstream part 71a, the branch air passage 72, the exhaust side downstream part 77a, and the exhaust duct 34. Exhausted outside the room. In the cleaning operation, an air flow in the direction opposite to that during the air conditioning operation can be generated inside the air supply duct 31. Therefore, the air supply duct 31 can be cleaned by discharging dust attached to the inner wall surface of the air supply duct 31 to the outside by the air flow generated in the air supply duct 31 during the cleaning operation. According to this cleaning method, the air supply duct 31 can be cleaned without inserting the cleaning tool into the air supply duct 31 and without contacting the air supply duct 31. Therefore, even if it is the air supply duct 31 provided in the wall or the ceiling, it becomes possible to perform cleaning easily at a reduced cost.
　また、給気送風機７３は、給気側上流部７１ｂに設けられているため、清掃運転時に給気ダクト３１から流れてくる空気流には接触しない。そのため、清掃運転時に給気ダクト３１から流れてくる空気流に含まれる埃によって、給気送風機７３が汚染されることを防ぐことができる。同様に、給気側上流部７１ｂに設けられている熱交換器７６の汚染も防ぐことができる。 Moreover, since the air supply blower 73 is provided in the air supply side upstream portion 71b, it does not contact the airflow flowing from the air supply duct 31 during the cleaning operation. Therefore, it is possible to prevent the supply air blower 73 from being contaminated by dust contained in the airflow flowing from the supply air duct 31 during the cleaning operation. Similarly, contamination of the heat exchanger 76 provided in the supply side upstream portion 71b can also be prevented.
　また、排気送風機７８は、排気側上流部７７ｂに設けられているため、清掃運転時に給気ダクト３１から流れてくる空気流には接触しない。そのため、清掃運転時に給気ダクト３１から流れてくる空気流に含まれる埃によって、排気送風機７８が汚染されることを防ぐことができる。 Further, since the exhaust blower 78 is provided in the exhaust-side upstream portion 77b, it does not come into contact with the airflow flowing from the air supply duct 31 during the cleaning operation. Therefore, it is possible to prevent the exhaust blower 78 from being contaminated by dust contained in the airflow flowing from the air supply duct 31 during the cleaning operation.
　空調運転時に給気ダクト３１の内壁面に付着した埃を効率的に排出するために、清掃用送風機７４の風量を給気送風機７３の風量よりも大きくして、清掃運転時には空調運転時よりも大きな風量で給気ダクト３１に空気を通過させることが好ましい。ただし、空調運転時と空気の流れが逆向きになることで舞い上がる埃もあるため、必ずしも清掃用送風機７４の風量を給気送風機７３の風量よりも大きくする必要はない。 In order to efficiently discharge dust adhering to the inner wall surface of the air supply duct 31 during the air conditioning operation, the air volume of the cleaning blower 74 is made larger than the air volume of the air supply fan 73, and during the cleaning operation than during the air conditioning operation. It is preferable to allow air to pass through the air supply duct 31 with a large air volume. However, since there is dust that rises when the air flow is reversed in the air-conditioning operation, the air volume of the cleaning fan 74 does not necessarily need to be larger than the air volume of the supply fan 73.
　また、清掃運転時に排出される埃を集塵部７５によって回収することができるが、本実施の形態１では分岐風路７２が排気側下流部７７ａに接続されているので、集塵部７５を設けない場合であっても、埃を室外に排出することができる。そのため、図３，４に示す構成では、集塵部７５を省略しても構わない。 In addition, the dust discharged during the cleaning operation can be collected by the dust collecting portion 75. However, in the first embodiment, the branch air passage 72 is connected to the exhaust side downstream portion 77a. Even if it is not provided, dust can be discharged outside the room. Therefore, in the configuration shown in FIGS. 3 and 4, the dust collection unit 75 may be omitted.
　なお、図１に示すように、空調システム５０は、清掃運転時の清掃効率の向上を図るために、室内給気口４１部分に清掃促進部４３を備える。ここで、給気ダクト３１に接触させたヒータを清掃促進部４３としてもよい。清掃運転時にヒータを加熱させることで、室内吸込口４２を通して給気ダクト３１内に吸い込まれる空気を加熱することができる。加熱された空気によって給気ダクト３１の温度を上昇させることで、殺菌効果を得ることができる。また、ヒータが給気ダクト３１に接触しているので、ヒータの熱を給気ダクト３１に直接伝えて給気ダクト３１の温度を上昇させることができる。これにより、殺菌効果の向上を図ることができる。 In addition, as shown in FIG. 1, the air conditioning system 50 includes a cleaning promotion unit 43 in the indoor air supply port 41 in order to improve the cleaning efficiency during the cleaning operation. Here, the heater brought into contact with the air supply duct 31 may be used as the cleaning promoting unit 43. By heating the heater during the cleaning operation, the air sucked into the air supply duct 31 through the indoor suction port 42 can be heated. By increasing the temperature of the air supply duct 31 with the heated air, a sterilizing effect can be obtained. Further, since the heater is in contact with the air supply duct 31, the heat of the heater can be directly transmitted to the air supply duct 31 to increase the temperature of the air supply duct 31. Thereby, the improvement of a sterilization effect can be aimed at.
　清掃促進部４３に用いられるヒータは、ニクロム線を網目状にしたものを用いれば、空気との接触面積の増加を図ることができる。これにより、より効率的に空気および給気ダクト３１の温度を上昇させることができる。 If the heater used for the cleaning promoting part 43 is a mesh made of nichrome wire, the contact area with air can be increased. Thereby, the temperature of air and the supply duct 31 can be raised more efficiently.
　また、イオン発生器を清掃促進部４３としてもよい。イオン発生器は、放電現象によりイオンを発生する手段である。イオン発生器は、正イオンと負イオンの両方、またはいずれか一方を発生させる。清掃運転時にイオン発生器を運転させることで、給気ダクト３１内に吸い込まれる空気に含ませて、給気ダクト３１内にイオンを送り込むことができる。給気ダクト３１内に送り込まれたイオンによって、給気ダクト３１の内壁面に付着した埃を浮き上がらせることができる。これにより、清掃運転中に給気ダクト３１内に発生する空気流によって埃が剥がれやすくなり、清掃効率の向上を図ることができる。 Further, the ion generator may be used as the cleaning promotion unit 43. The ion generator is a means for generating ions by a discharge phenomenon. The ion generator generates both positive ions and / or negative ions. By operating the ion generator during the cleaning operation, ions can be sent into the air supply duct 31 by being included in the air sucked into the air supply duct 31. Due to the ions fed into the air supply duct 31, dust attached to the inner wall surface of the air supply duct 31 can be lifted. Thereby, dust becomes easy to be peeled off by the air flow generated in the air supply duct 31 during the cleaning operation, and the cleaning efficiency can be improved.
　また、防カビ剤を噴霧する噴霧器を清掃促進部４３としてもよい。防カビ剤は、塩素系またはアルコール系の防カビ剤である。清掃運転時に防カビ剤を噴霧することで、給気ダクト３１内に吸い込まれる空気に含ませて、給気ダクト３１内に防カビ剤を送り込むことができる。給気ダクト３１内に送り込まれた防カビ剤によって、清掃運転終了後の給気ダクト３１内でのカビの発生を抑えることができる。これにより、空調運転中に、より清潔な空気を室内６０ａに供給することが可能となる。また、カビの発生を抑えることで、清掃運転を行う頻度を抑えることができる。なお、ヒータ、イオン発生器および噴霧器を組み合わせて清掃促進部４３としてもよい。また、上述した制御部４は、清掃促進部４３の動作の制御も行う。 Also, a sprayer that sprays the fungicide may be used as the cleaning promoting unit 43. The fungicide is a chlorine or alcohol fungicide. By spraying the antifungal agent during the cleaning operation, the antifungal agent can be sent into the air supply duct 31 by being included in the air sucked into the air supply duct 31. The fungicides sent into the air supply duct 31 can suppress the occurrence of mold in the air supply duct 31 after the end of the cleaning operation. This makes it possible to supply cleaner air to the room 60a during the air conditioning operation. Moreover, the frequency which performs a cleaning driving | operation can be suppressed by suppressing generation | occurrence | production of mold | fungi. In addition, it is good also as the cleaning promotion part 43 combining a heater, an ion generator, and a sprayer. Further, the control unit 4 described above also controls the operation of the cleaning promoting unit 43.
　次に、空調システム５０における清掃運転時の具体的な動作手順について説明する。図５は、実施の形態１に係る空調装置１の清掃運転時の動作手順の一例を示すフローチャートである。まず、制御部４は、ステップＳ１において、清掃運転を行う時期になったか否かを判定する。清掃運転を行う時期になっている場合には、ステップＳ２において清掃運転を行う時期になったことを報知する。報知の方法は、ユーザが操作する操作部に表示することが一例に挙げられる。清掃運転を行う時期になったかの判定は、空調運転の累計時間または給気ダクト３１内の風量に基づいて行われる。なお、清掃運転を行う時期になったかの判定基準は、これに限られない。清掃運転を行う時期がユーザによって設定されても構わない。 Next, a specific operation procedure during the cleaning operation in the air conditioning system 50 will be described. FIG. 5 is a flowchart illustrating an example of an operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment. First, in step S1, the control unit 4 determines whether or not it is time to perform a cleaning operation. If it is time to perform the cleaning operation, it is notified in step S2 that it is time to perform the cleaning operation. An example of the notification method is to display on the operation unit operated by the user. The determination as to whether it is time to perform the cleaning operation is performed based on the accumulated time of the air conditioning operation or the air volume in the air supply duct 31. Note that the criterion for determining whether it is time to perform the cleaning operation is not limited to this. The time when the cleaning operation is performed may be set by the user.
　ステップＳ３において、報知によって清掃運転を行う時期になったことを認識したユーザによって、実際に清掃運転を行う時間が設定される。清掃運転中は、空調運転が行われないため、ユーザは自身が室内６０ａにいない時間に清掃運転が行われるように開始時間と終了時間を設定することができる。 In step S3, the time for actually performing the cleaning operation is set by the user who has recognized that it is time to perform the cleaning operation by notification. Since the air conditioning operation is not performed during the cleaning operation, the user can set the start time and the end time so that the cleaning operation is performed when the user is not in the room 60a.
　ステップＳ４において、開始時間になったと制御部４が判定した場合には、ステップＳ５において、空調装置１による清掃運転が開始される。その後、ステップＳ６において、終了時間になったと制御部４が判定した場合には、ステップＳ７において清掃運転が終了される。 In step S4, when the control unit 4 determines that the start time is reached, the cleaning operation by the air conditioner 1 is started in step S5. Thereafter, when the control unit 4 determines that the end time has come in step S6, the cleaning operation is ended in step S7.
　図６は、実施の形態１に係る空調装置１の清掃運転時の動作手順の他の例を示すフローチャートである。まず、制御部４は、ステップＳ１１において、清掃運転を行う時期になったか否かを判定する。清掃運転を行う時期になっている場合に制御部４は、ステップＳ１２において、室内６０ａに人がいるか否か判定する。室内６０ａに人がいるか否かの判定は、図示しない人感センサを用いて行われる。人感センサには、サーモセンサおよび光学カメラが挙げられる。 FIG. 6 is a flowchart showing another example of the operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment. First, in step S11, the control unit 4 determines whether it is time to perform a cleaning operation. When it is time to perform the cleaning operation, the control unit 4 determines whether or not there is a person in the room 60a in step S12. Whether or not there is a person in the room 60a is determined using a human sensor (not shown). The human sensor includes a thermo sensor and an optical camera.
　室内６０ａに人がいないと判定された場合には、ステップＳ１３において、空調装置１による清掃運転が開始される。制御部４は、ステップＳ１４において、室内６０ａに人が戻ってきたか判定する。室内６０ａに人が戻ってきたと判定された場合には、ステップＳ１７において、清掃運転を停止して、ステップＳ１２に戻る。室内６０ａに人が戻ってこないまま、ステップＳ１５において清掃運転の開始から予め定めた時間が経過したと判定された場合には、ステップＳ１６において清掃運転が終了される。清掃運転を継続させる予め定められた時間は、給気ダクト３１の長さおよび太さに応じて設定される時間であり、給気ダクト３１内の埃が十分に排出されたと考えられる時間である。 If it is determined that there is no person in the room 60a, the cleaning operation by the air conditioner 1 is started in step S13. In step S14, the controller 4 determines whether a person has returned to the room 60a. If it is determined that a person has returned to the room 60a, the cleaning operation is stopped in step S17, and the process returns to step S12. If it is determined in step S15 that a predetermined time has elapsed from the start of the cleaning operation without returning to the room 60a, the cleaning operation is terminated in step S16. The predetermined time during which the cleaning operation is continued is a time set according to the length and thickness of the air supply duct 31 and is a time when dust in the air supply duct 31 is considered to be sufficiently discharged. .
　図７は、実施の形態１に係る空調装置１の清掃運転時の動作手順のさらに他の例を示すフローチャートである。図７では、防カビ剤の噴霧が清掃促進部４３によって行われず、ユーザの手動によって行われる場合を例に挙げている。 FIG. 7 is a flowchart showing still another example of the operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment. In FIG. 7, the case where spraying of the fungicide is not performed by the cleaning promoting unit 43 but performed manually by the user is taken as an example.
　まず、ステップＳ２１において、ユーザの操作によって清掃運転モードに設定されると、ステップＳ２２において、制御部４は空調装置１による清掃運転を開始させる。ユーザは、清掃運転が行われている間に、室内給気口４１から給気ダクト３１内に防カビ剤を噴霧し、噴霧が完了したことを空調装置１に通知する。噴霧が完了したことの通知は、ユーザが操作する操作部を通じて行われる。 First, when the cleaning operation mode is set by a user operation in step S21, the control unit 4 starts the cleaning operation by the air conditioner 1 in step S22. While the cleaning operation is being performed, the user sprays a fungicide into the air supply duct 31 from the indoor air supply port 41 and notifies the air conditioner 1 that the spraying has been completed. Notification of the completion of spraying is performed through an operation unit operated by the user.
　制御部４は、ステップＳ２３において、防カビ剤の噴霧が完了したことを認識し、ステップＳ２４において、防カビ剤の噴霧が完了したことを認識してから予め定められた時間が経過したと判定した場合に、ステップＳ２５において、清掃運転を終了させる。防カビ剤の噴霧完了の認識後に清掃運転を継続させる予め定められた時間は、給気ダクト３１の長さや太さに応じて設定される時間であり、給気ダクト３１内の埃が十分に排出されたと考えられる時間または、防カビ剤が給気ダクト３１内に行き渡ったと考えられる時間である。 In step S23, the control unit 4 recognizes that the fungicide spray has been completed, and in step S24, determines that a predetermined time has elapsed since recognizing that the fungicide spray has been completed. If so, the cleaning operation is terminated in step S25. The predetermined time for continuing the cleaning operation after recognizing the completion of spraying of the antifungal agent is a time set according to the length and thickness of the air supply duct 31, and the dust in the air supply duct 31 is sufficient. This is the time that is considered to have been discharged or the time that the antifungal agent has been distributed in the air supply duct 31.
　図８は、実施の形態１に係る空調装置１の清掃運転時の動作手順のさらに他の例を示すフローチャートである。ステップＳ３１において、ユーザの操作によって清掃運転モードに設定されると、ステップＳ３２において、制御部４は空調装置１による清掃運転を開始させる。制御部４は、ステップＳ３３において、清掃運転の開始から予め定められた時間が経過したと判定した場合に、ステップＳ３４において、清掃運転を終了させる。清掃運転を継続させる予め定められた時間は、給気ダクト３１の長さおよび太さに応じて設定される時間であり、給気ダクト３１内の埃が十分に排出されたと考えられる時間である。 FIG. 8 is a flowchart showing still another example of the operation procedure during the cleaning operation of the air conditioner 1 according to the first embodiment. In step S31, when the cleaning operation mode is set by a user operation, the control unit 4 starts the cleaning operation by the air conditioner 1 in step S32. When it is determined in step S33 that a predetermined time has elapsed since the start of the cleaning operation, the control unit 4 ends the cleaning operation in step S34. The predetermined time during which the cleaning operation is continued is a time set according to the length and thickness of the air supply duct 31 and is a time when dust in the air supply duct 31 is considered to be sufficiently discharged. .
　なお、制御部４は、清掃運転中および清掃運転の終了後に、集塵部７５の交換または清掃が必要か否か判定してもよい。集塵部７５の交換または清掃が必要と判定された場合に制御部４は、集塵部７５の交換または清掃が必要であることを報知する。報知の方法は、ユーザが操作する操作部に表示することが一例に挙げられる。ユーザは、この報知を認識することで、適切な時期に集塵部７５の交換または清掃を行うことができ、集塵部７５の目詰まりによる給気ダクト３１の清掃性能の低下を抑えることができる。集塵部７５の交換または清掃が必要かの判定は、清掃運転の回数、累計時間または清掃運転時の風量によって判定することができる。なお、集塵部７５の交換または清掃が必要かの判定の基準は、これらに限られない。 The control unit 4 may determine whether the dust collection unit 75 needs to be replaced or cleaned during the cleaning operation and after the cleaning operation is completed. When it is determined that the dust collection unit 75 needs to be replaced or cleaned, the control unit 4 notifies that the dust collection unit 75 needs to be replaced or cleaned. An example of the notification method is to display on the operation unit operated by the user. By recognizing this notification, the user can replace or clean the dust collecting portion 75 at an appropriate time, and suppress the deterioration of the cleaning performance of the air supply duct 31 due to clogging of the dust collecting portion 75. it can. Whether the dust collecting unit 75 needs to be replaced or cleaned can be determined by the number of cleaning operations, the accumulated time, or the air volume during the cleaning operation. Note that the criteria for determining whether the dust collector 75 needs to be replaced or cleaned are not limited to these.
　なお、図３，４に示した空調装置１の構成から、熱交換器７６と循環風路８０を省略すれば、空調装置１を、清掃機構部７０を備えた熱交換換気装置とすることができる。また、第１の切り替え部８１は、１つの切り替え装置として構成されていなくてもよく、給気風路７１を開閉する切り替え装置と、分岐風路７２を開閉する切り替え装置とを組み合わせて構成してもよい。また、第２の切り替え部８２は、１つの切り替え装置として構成されていなくてもよく、排気風路７７を開閉する切り替え装置と、分岐風路７２を開閉する切り替え装置とを組み合わせて構成してもよい。 If the heat exchanger 76 and the circulation air passage 80 are omitted from the configuration of the air conditioner 1 shown in FIGS. 3 and 4, the air conditioner 1 can be a heat exchange ventilator including the cleaning mechanism unit 70. it can. Further, the first switching unit 81 may not be configured as one switching device, and is configured by combining a switching device that opens and closes the supply air passage 71 and a switching device that opens and closes the branch air passage 72. Also good. The second switching unit 82 may not be configured as one switching device, and is configured by combining a switching device that opens and closes the exhaust air passage 77 and a switching device that opens and closes the branch air passage 72. Also good.
　次に、空調装置１の変形例について説明する。図９は、実施の形態１に係る空調装置１の変形例を示す図である。図９に示す変形例では、給気接続口１１、還気接続口１２、外気接続口１３および排気接続口１４とは別に、ダクトを接続可能な清掃気流排出口１５が筐体３に形成されている。また、清掃機構部７０の分岐風路７２は、排気風路７７ではなく清掃気流排出口１５に接続されている。清掃運転時に分岐風路７２を通過する空気に含まれる埃は、集塵部７５に回収されるため、筐体３の外部で清掃気流排出口１５に接続されるダクトを室内６０ａに連通させてもよい。また、清掃気流排出口１５に接続されるダクトを室外に連通させた場合には、集塵部７５を省略してもよい。 Next, a modification of the air conditioner 1 will be described. FIG. 9 is a diagram illustrating a modification of the air conditioner 1 according to the first embodiment. In the modification shown in FIG. 9, a cleaning air discharge port 15 to which a duct can be connected is formed in the housing 3 separately from the air supply connection port 11, the return air connection port 12, the outside air connection port 13, and the exhaust connection port 14. ing. Further, the branch air passage 72 of the cleaning mechanism unit 70 is connected to the cleaning air flow outlet 15 instead of the exhaust air passage 77. Since dust contained in the air passing through the branch air passage 72 during the cleaning operation is collected in the dust collecting portion 75, a duct connected to the cleaning air flow outlet 15 outside the housing 3 is connected to the room 60a. Also good. Further, when the duct connected to the cleaning airflow outlet 15 is communicated with the outside of the room, the dust collecting portion 75 may be omitted.
　変形例に係る空調装置１では、図３，４に示す空調装置１に比べて、分岐風路７２の短縮化、および第２の切り替え部８２の省略を図ることができる。そのため、変形例に係る空調装置１では、構造および制御の簡素化ならびに製造コストの抑制を図ることができる。 In the air conditioner 1 according to the modified example, the branch air passage 72 can be shortened and the second switching unit 82 can be omitted as compared with the air conditioner 1 shown in FIGS. Therefore, in the air conditioner 1 according to the modified example, the structure and control can be simplified and the manufacturing cost can be reduced.
　次に、清掃用送風機７４の他の設置例について説明する。図１０は、実施の形態１における清掃用送風機７４の他の設置例を示す図である。図１０に示す清掃用送風機７４の設置例では、分岐風路７２内に挿入風路８３が挿入されている。清掃用送風機７４は、分岐風路７２の外側に配置されて、挿入風路８３に接続されている。清掃用送風機７４は、挿入風路８３から分岐風路７２内に空気を吹き出させる。 Next, another installation example of the cleaning fan 74 will be described. FIG. 10 is a diagram showing another installation example of the cleaning fan 74 in the first embodiment. In the installation example of the cleaning blower 74 shown in FIG. 10, the insertion air passage 83 is inserted into the branch air passage 72. The cleaning blower 74 is disposed outside the branch air passage 72 and connected to the insertion air passage 83. The cleaning blower 74 blows air from the insertion air passage 83 into the branch air passage 72.
　挿入風路８３は、給気風路７１から離れる方向に空気が吹き出されるように、分岐風路７２内に挿入されている。挿入風路８３から空気が吹き出されると、領域Ａ部分が負圧となり、給気風路７１側の空気を引き込んで、分岐風路７２内に給気風路７１から離れる方向に向かう空気流を発生させることができる。これにより、清掃運転時に給気ダクト３１に空調運転時とは逆方向の空気流を発生させることができる。この配置例では、給気ダクト３１から空気が流れてくる分岐風路７２の外側に清掃用送風機７４が配置されているので、空気に含まれる埃によって清掃用送風機７４が汚染されることを防ぐことができる。 The insertion air passage 83 is inserted into the branch air passage 72 so that air is blown away from the air supply air passage 71. When air is blown out from the insertion air passage 83, the area A becomes negative pressure, draws air on the supply air passage 71 side, and generates an air flow in the branch air passage 72 in a direction away from the supply air passage 71. Can be made. Thereby, the air flow in the direction opposite to that during the air conditioning operation can be generated in the air supply duct 31 during the cleaning operation. In this arrangement example, since the cleaning blower 74 is disposed outside the branch air passage 72 through which air flows from the air supply duct 31, the cleaning blower 74 is prevented from being contaminated by dust contained in the air. be able to.
実施の形態２．
　図１１は、本発明の実施の形態２に係る空調装置の概略構成を示す図であって、空調運転中の状態を示す図である。図１２は、本発明の実施の形態２に係る空調装置の概略構成を示す図であって、清掃運転中の状態を示す図である。上記実施の形態１と同様の構成については、同様の符号を付して詳細な説明を省略する。 Embodiment 2. FIG.
FIG. 11 is a diagram illustrating a schematic configuration of the air-conditioning apparatus according to Embodiment 2 of the present invention, and is a diagram illustrating a state during the air-conditioning operation. FIG. 12 is a diagram illustrating a schematic configuration of the air-conditioning apparatus according to Embodiment 2 of the present invention, and is a diagram illustrating a state during a cleaning operation. About the structure similar to the said Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
　本実施の形態２に係る空調装置１００は、清掃機構部７０を備える冷暖房装置である。空調装置１００は、実施の形態１と異なり熱交換素子を有していない。筐体１０３には、給気ダクト３１が接続される給気接続口１１１、還気ダクト３２が接続される還気接続口１１２、および筐体１０３の内部から分岐風路７２が接続される清掃気流排出口１１５が形成されているが、室外と連通される外気接続口と排気接続口は形成されていない。 The air conditioner 100 according to the second embodiment is an air conditioner including the cleaning mechanism unit 70. Unlike the first embodiment, the air conditioner 100 does not have a heat exchange element. Cleaning that the supply air connection port 111 to which the supply air duct 31 is connected, the return air connection port 112 to which the return air duct 32 is connected, and the branch air passage 72 from the inside of the housing 103 are connected to the housing 103. Although the airflow discharge port 115 is formed, the outside air connection port and the exhaust connection port communicated with the outdoor are not formed.
　筐体１０３の内部において、清掃機構部７０が備える給気風路７１は、給気接続口１１１に給気側下流部７１ａが接続され、還気接続口１１２から延びる還気風路１８０に空気側上流部７１ｂが接続されている。 Inside the housing 103, the air supply air path 71 provided in the cleaning mechanism unit 70 is connected to the air supply connection port 111 to the air supply side downstream part 71 a, and the air supply upstream to the return air air path 180 extending from the return air connection port 112. The part 71b is connected.
　以上説明した空調装置１００によれば、図１１に示す空調運転時には、還気ダクト３２から吸い込んだ室内の空気を、熱交換器７６で加熱または冷却して、給気ダクト３１を介して室内に給気することができる。 According to the air conditioner 100 described above, during the air conditioning operation shown in FIG. 11, the indoor air sucked from the return air duct 32 is heated or cooled by the heat exchanger 76 and is passed through the air supply duct 31 to the room. You can supply air.
　また、図１２に示す清掃運転時には、給気ダクト３１の内部に空調運転時とは逆方向となる空気流を発生させて、給気ダクト３１内の清掃を行うことができる。この清掃方法によれば、給気ダクト３１内への清掃器具の挿入および給気ダクト３１への接触を行わずに給気ダクト３１を清掃することができる。そのため、壁内や天井内に設けられた給気ダクト３１であってもコストを抑えて手軽に清掃を行うことが可能となる。 In the cleaning operation shown in FIG. 12, the air supply duct 31 can be cleaned by generating an air flow in the opposite direction to that in the air conditioning operation in the air supply duct 31. According to this cleaning method, the air supply duct 31 can be cleaned without inserting the cleaning tool into the air supply duct 31 and without contacting the air supply duct 31. Therefore, even the air supply duct 31 provided in the wall or ceiling can be easily cleaned at a reduced cost.
　なお、実施の形態１では、冷暖房装置と熱交換換気装置を組み合わせた空調装置１を用いて空調システム５０を構成したが、空調装置１から循環風路８０および熱交換器７６を省略した熱交換換気装置と、本実施の形態２で説明した冷暖房装置である空調装置１００とを組み合わせて空調システムを構成してもよい。この場合、冷暖房装置および熱交換換気装置のいずれか一方が清掃機構部７０を備えていれば、手軽かつコストを抑えた給気ダクト３１の清掃を行うことが可能となる。 In the first embodiment, the air conditioning system 50 is configured by using the air conditioner 1 in which the air conditioning apparatus and the heat exchange ventilator are combined. However, the heat exchange in which the circulation air path 80 and the heat exchanger 76 are omitted from the air conditioner 1. The air conditioning system may be configured by combining the ventilation device and the air conditioning device 100 that is the air conditioning device described in the second embodiment. In this case, if either one of the air conditioner and the heat exchange ventilator includes the cleaning mechanism 70, the air supply duct 31 can be easily and cost-effectively cleaned.
　また、清掃機構部７０の一部または全部が、筐体３，１０３の外側に配置されていてもよい。 Further, part or all of the cleaning mechanism unit 70 may be disposed outside the housings 3 and 103.
　以上の実施の形態に示した構成は、本発明の内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、本発明の要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。 The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
　１　空調装置、４　制御部、１１　給気接続口、１２　還気接続口、１３　外気接続口、１４　排気接続口、１５　清掃気流排出口、３１　給気ダクト、３２　還気ダクト、４１　室内給気口、４３　清掃促進部、５０　空調システム、６０　建物、６０ａ　室内、７０　清掃機構部、７１　給気風路、７１ａ　給気側下流部、７１ｂ　給気側上流部、７２　分岐風路、７３　給気送風機（第１の送風機）、７４　清掃用送風機（第２の送風機）、７５　集塵部、７６　熱交換器、７７　排気風路、７８　排気送風機（第３の送風機）、７９　熱交換素子、８０　循環風路、８１　第１の切り替え部、８２　第２の切り替え部、８３　挿入風路、１００　空調装置、１０３　筐体、１１１　給気接続口、１１２　還気接続口、１１５　清掃気流排出口。 1 air conditioner, 4 control unit, 11 air supply connection port, 12 return air connection port, 13 outside air connection port, 14 exhaust connection port, 15 cleaning airflow discharge port, 31 air supply duct, 32 return air duct, 41 indoor air supply Mouth, 43 Cleaning promotion part, 50 Air conditioning system, 60 Building, 60a room, 70 Cleaning mechanism part, 71 Air supply path, 71a Air supply side downstream part, 71b Air supply side upstream part, 72 Branch air path, 73 Air supply blower (First blower), 74 cleaning fan (second blower), 75 dust collector, 76 heat exchanger, 77 exhaust air passage, 78 exhaust blower (third blower), 79 heat exchange element, 80 circulation Air path, 81 1st switching part, 82 2nd switching part, 83 insertion air path, 100 air conditioner, 103 housing, 111 air supply connection port, 112 return air connection port, 115 cleaning Flow outlet.

Claims (15)

  1. 　室内に連通される給気風路と、
    　前記給気風路の内部に前記室内に向けた第１の空気流を発生させる第１の送風機と、
    　前記給気風路から分岐された分岐風路と、
    　給気側下流部が給気側上流部に連通された状態、または前記給気側下流部が前記分岐風路に連通された状態のいずれかの状態に切り替える第１の切り替え部と、
    　前記給気側下流部の内部に前記室内から前記分岐風路に向けた第２の空気流を発生させる第２の送風機と、を備え、
    　前記給気側下流部は、前記給気風路の一部であって前記分岐風路との分岐部分よりも前記室内側となる風路であり、
    　前記給気側上流部は、前記給気風路の一部であって前記給気側下流部よりも前記第１の空気流における上流側となる風路である空調装置。     A supply air passage communicating with the room;
    A first blower for generating a first air flow toward the room inside the air supply path;
    A branched air passage branched from the air supply air passage;
    A first switching unit that switches between a state in which the air supply side downstream portion communicates with the air supply side upstream portion, or a state in which the air supply side downstream portion communicates with the branch air passage;
    A second blower for generating a second air flow from the room toward the branch air passage in the supply side downstream portion,
    The downstream side of the air supply side is a part of the air supply air passage and is an air passage that is on the indoor side of the branch portion with the branch air passage,
    The air supply side upstream portion is an air conditioner that is a part of the air supply air passage and is an air passage upstream of the air supply side downstream portion in the first air flow.
  2. 　前記第１の送風機は、前記給気側上流部に設けられる請求項１に記載の空調装置。 The air conditioner according to claim 1, wherein the first blower is provided in the upstream side of the supply side.
  3. 　前記第２の送風機は、前記分岐風路に設けられる請求項１または２に記載の空調装置。 The air conditioner according to claim 1 or 2, wherein the second blower is provided in the branch air passage.
  4. 　前記分岐風路内に挿入された挿入風路をさらに備え、
    　前記第２の送風機は、前記分岐風路の外側に設けられて前記挿入風路に接続され、
    　前記挿入風路からは、前記第２の送風機の運転時に、前記給気風路から離れる方向に向けて空気が吹き出される請求項１から３のいずれか１つに記載の空調装置。     Further comprising an insertion air passage inserted into the branch air passage,
    The second blower is provided outside the branch air passage and connected to the insertion air passage,
    The air conditioner according to any one of claims 1 to 3, wherein air is blown out from the insertion air passage toward a direction away from the supply air passage during operation of the second blower.
  5. 　前記分岐風路に設けられた集塵部をさらに備える請求項１から４のいずれか１つに記載の空調装置。 The air conditioner according to any one of claims 1 to 4, further comprising a dust collecting portion provided in the branch air passage.
  6. 　前記第１の送風機の運転時には、前記給気側上流部と前記給気側下流部とを連通させ、前記第２の送風機の運転時には、前記給気側下流部と前記分岐風路とを連通させるように前記第１の切り替え部を制御する制御部をさらに備える請求項１から５のいずれか１つに記載の空調装置。 During the operation of the first blower, the supply side upstream portion and the supply side downstream portion are communicated, and when the second blower is operated, the supply side downstream portion and the branch air passage are communicated. The air conditioner according to any one of claims 1 to 5, further comprising a control unit that controls the first switching unit to cause the first switching unit to operate.
  7. 　前記第１の空気流における前記給気風路の上流側も前記室内に連通され、
    　前記給気風路を通過する空気を加熱または冷却する熱交換器をさらに備える請求項１から６のいずれか１つに記載の空調装置。     The upstream side of the supply air passage in the first air flow is also communicated with the room,
    The air conditioner according to any one of claims 1 to 6, further comprising a heat exchanger that heats or cools air passing through the supply air passage.
  8. 　前記第１の空気流における前記給気風路の上流側は室外に連通され、
    　前記室内および前記室外に連通される排気風路と、
    　前記排気風路の内部に前記室外に向けた第３の空気流を発生させる第３の送風機と、
    　前記給気風路を通過する空気と前記排気風路を通過する空気との間で熱交換させる熱交換素子と、をさらに備える請求項１から５のいずれか１つに記載の空調装置。     The upstream side of the supply air passage in the first air flow is communicated with the outside,
    An exhaust air passage communicating with the room and the outside;
    A third blower for generating a third air flow toward the outside in the exhaust air passage;
    The air conditioner according to any one of claims 1 to 5, further comprising: a heat exchange element that exchanges heat between the air passing through the supply air passage and the air passing through the exhaust air passage.
  9. 　前記給気風路を通過する空気を加熱または冷却する熱交換器をさらに備える請求項８に記載の空調装置。 The air conditioner according to claim 8, further comprising a heat exchanger that heats or cools air passing through the supply air passage.
  10. 　前記分岐風路は、前記給気風路と前記排気風路とを連通させる風路であり、
    　排気側下流部が排気側上流部に連通された状態、または前記排気側下流部が前記分岐風路に連通された状態のいずれかの状態に切り替える第２の切り替え部と、をさらに備え、
    　前記排気側下流部は、前記排気風路の一部であって前記分岐風路との分岐部分よりも前記室外側となる風路であり、
    　前記排気側上流部は、前記排気風路の一部であって前記排気側下流部よりも前記第３の空気流における上流側となる風路である請求項８または９に記載の空調装置。     The branch air passage is an air passage communicating the supply air passage and the exhaust air passage,
    A second switching unit that switches to either a state in which the exhaust-side downstream portion communicates with the exhaust-side upstream portion or a state in which the exhaust-side downstream portion communicates with the branch air passage;
    The exhaust side downstream part is a part of the exhaust air path and is an air path that is on the outdoor side of the branch part with the branch air path,
    10. The air conditioner according to claim 8, wherein the exhaust-side upstream portion is an air passage that is a part of the exhaust air passage and is upstream of the exhaust-side downstream portion in the third air flow.
  11. 　前記第１の送風機および前記第３の送風機の運転時には、前記給気側上流部と前記給気側下流部とを連通させるとともに前記排気側上流部と前記排気側下流部とを連通させ、前記第２の送風機の動作時には、前記給気側下流部と前記分岐風路とを連通させるとともに前記排気側下流部と前記分岐風路とを連通させるように前記第１の切り替え部および前記第２の切り替え部を制御する制御部をさらに備える請求項８から１０のいずれか１つに記載の空調装置。 During operation of the first blower and the third blower, the supply-side upstream portion and the supply-side downstream portion are communicated with each other, and the exhaust-side upstream portion and the exhaust-side downstream portion are communicated, During the operation of the second blower, the first switching unit and the second switching unit are configured to connect the supply-side downstream portion and the branch air passage and to connect the exhaust-side downstream portion and the branch air passage. The air conditioner according to claim 8, further comprising a control unit that controls the switching unit.
  12. 　請求項１から１１のいずれか１つに記載の空調装置と、
    　前記給気風路から前記室内に向けて延びる給気ダクトと、
    　前記給気ダクトの前記室内側の末端に設けられる室内給気口と、を備える空調システム。     The air conditioner according to any one of claims 1 to 11,
    An air supply duct extending from the air supply path toward the room;
    An air conditioning system comprising: an indoor air supply opening provided at an end of the air supply duct on the indoor side.
  13. 　前記室内給気口に設けられて前記給気ダクトに接触するヒータをさらに備える請求項１２に記載の空調システム。 The air conditioning system according to claim 12, further comprising a heater provided at the indoor air supply port and in contact with the air supply duct.
  14. 　前記室内給気口に設けられたイオン発生器をさらに備える請求項１２に記載の空調システム。 The air conditioning system according to claim 12, further comprising an ion generator provided at the indoor air supply port.
  15. 　前記室内給気口に設けられて、防カビ剤を噴霧する噴霧器をさらに備える請求項１２に記載の空調システム。 The air conditioning system according to claim 12, further comprising a sprayer that is provided at the indoor air supply port and sprays a fungicide.
PCT/JP2015/072376 2014-10-30 2015-08-06 Air conditioning device and air conditioning system WO2016067703A1 (en)

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JPH09112963A (en) * 1995-10-20 1997-05-02 Misawa Homes Co Ltd Air conditioner and its cleaning method
JPH1111307A (en) * 1997-06-20 1999-01-19 Hitachi Ltd Air conditioner for rolling stock
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JPH09112963A (en) * 1995-10-20 1997-05-02 Misawa Homes Co Ltd Air conditioner and its cleaning method
JPH1111307A (en) * 1997-06-20 1999-01-19 Hitachi Ltd Air conditioner for rolling stock
WO2011089728A1 (en) * 2010-01-25 2011-07-28 三菱電機株式会社 Ventilation terminal device and ventilation system

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* Cited by examiner, † Cited by third party
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CN106839363A (en) * 2017-03-01 2017-06-13 刘伟 The circulation device for air that a kind of air outlet, return air inlet can be exchanged
CN106839363B (en) * 2017-03-01 2019-05-03 刘伟 The circulation device for air that a kind of air outlet, return air inlet can be exchanged

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