JP2022060872A - Air conditioner - Google Patents

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JP2022060872A
JP2022060872A JP2020168614A JP2020168614A JP2022060872A JP 2022060872 A JP2022060872 A JP 2022060872A JP 2020168614 A JP2020168614 A JP 2020168614A JP 2020168614 A JP2020168614 A JP 2020168614A JP 2022060872 A JP2022060872 A JP 2022060872A
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outdoor air
outdoor
absorbent material
air
indoor
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JP7142248B2 (en
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智貴 森川
Tomoki Morikawa
輝夫 藤社
Teruo Tosha
峻一 植松
Shunichi Uematsu
浩一 酒井
Koichi Sakai
優生 大西
Yuki Onishi
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to CN202180042490.XA priority patent/CN115698600A/en
Priority to PCT/JP2021/028706 priority patent/WO2022074920A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/037—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with humidification means
    • 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
    • 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
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements
    • 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
    • F24F7/007—Ventilation with forced flow

Abstract

To reduce indoor humidity while supplying outdoor air to an indoor side in an air conditioner.SOLUTION: An air conditioner includes: an absorber 58 provided in an outdoor unit and absorbing moisture of outdoor air; first flow passages R1, R2 that pass through the absorber 58 and connect an outdoor side and inside of an indoor unit 20 and in which outdoor air flows; a first fan 66 generating a flow of outdoor air toward the indoor unit 20 in the first flow passages R1, R2; and heaters 76A, 76B heating outdoor air on the upstream side of the absorber 58 in the first flow passages R1, R2. The air conditioner executes a humidification operation in which the heaters 76A, 76B heat outdoor air and the heated outdoor air deprives moisture of the absorber 58 and flows toward the indoor unit 20, and a dehumidification operation in which the heaters 76A, 76B are stopped and dried outdoor air of which moisture has been collected by the absorber 58 flows toward the indoor unit 20.SELECTED DRAWING: Figure 10

Description

本発明は、空気調和機に関する。 The present invention relates to an air conditioner.

従来より、特許文献１に記載するように、空気調和対象の室内に配置される室内機と、室外に配置される室外機とから構成される空気調和機が知られている。この空気調和機は、室外機から室内機に加湿された室外空気を供給できるように構成されている。 Conventionally, as described in Patent Document 1, an air conditioner including an indoor unit arranged indoors to be air-conditioned and an outdoor unit arranged outdoors is known. This air conditioner is configured to be able to supply humidified outdoor air from the outdoor unit to the indoor unit.

特開２００１－９１０００号公報Japanese Unexamined Patent Publication No. 2001-91000

ところで、室外空気を室内に供給しつつ、室内湿度を下げたいというニーズがある。 By the way, there is a need to reduce indoor humidity while supplying outdoor air to the room.

そこで、本発明は、室外空気を室内に供給しつつ、室内湿度を低下させることが可能な空気調和機を提供することを課題とする。 Therefore, it is an object of the present invention to provide an air conditioner capable of reducing indoor humidity while supplying outdoor air to the room.

上述の課題を解決するために、本発明の一態様によれば、
室内機と室外機とを備える空気調和機であって、
前記室外機に設けられ、室外空気の水分を吸収する吸収材と、
前記吸収材を通過し、室外と前記室内機内とを接続し、室外空気が流れる第１の流路と、
前記第１の流路に前記室内機に向かう室外空気の流れを発生させる第１のファンと、
前記第１の流路における前記吸収材に対する上流側で室外空気を加熱するヒータと、を有し、
前記ヒータが室外空気を加熱し、加熱された室外空気が前記吸収材の水分を奪って前記室内機に向かう加湿運転と、前記ヒータが停止し、前記吸収材に水分を捕集されて乾燥した室外空気が前記室内機に向かう除湿運転と、を実行する、空気調和機が提供される。 In order to solve the above-mentioned problems, according to one aspect of the present invention,
An air conditioner equipped with an indoor unit and an outdoor unit.
An absorbent material provided in the outdoor unit that absorbs the moisture of the outdoor air,
A first flow path that passes through the absorbent material, connects the outside and the inside of the indoor unit, and allows outdoor air to flow.
A first fan that generates an outdoor air flow toward the indoor unit in the first flow path,
It has a heater that heats the outdoor air on the upstream side of the absorbent material in the first flow path.
The heater heats the outdoor air, and the heated outdoor air deprives the absorbent material of water and heads for the indoor unit, and the heater is stopped, and the water is collected by the absorbent material and dried. An air conditioner is provided that performs a dehumidifying operation in which the outdoor air is directed toward the indoor unit.

本発明によれば、室外空気を室内に供給しつつ、室内湿度を低下させることが可能な空気調和機を提供することができる。 According to the present invention, it is possible to provide an air conditioner capable of reducing indoor humidity while supplying outdoor air to the room.

本発明の一実施の形態に係る空気調和機の概略的構成図Schematic block diagram of an air conditioner according to an embodiment of the present invention 室外機の斜視図Perspective view of the outdoor unit 換気装置の内部構成を示す斜視図Perspective view showing the internal configuration of the ventilation system 換気装置の構成要素の一部を取り外した状態の斜視図Perspective view with some components of the ventilation system removed 換気装置の構成要素の一部を取り外した状態の上面図Top view with some components of the ventilator removed 換気装置の分解斜視図An exploded perspective view of the ventilation system 異なる視点から見た換気装置の一部の構成要素の分解斜視図An exploded perspective view of some of the components of the ventilation system from different perspectives 換気装置の概略的な断面図Schematic cross section of the ventilator 換気装置の加湿運転（低加湿運転）を示す図The figure which shows the humidification operation (low humidification operation) of a ventilator 換気装置の加湿運転（高加湿運転）を示す図The figure which shows the humidification operation (high humidification operation) of a ventilator 加湿運転のタイミングチャートHumidification operation timing chart 換気装置の除湿運転と再生運転とを示す図The figure which shows the dehumidifying operation and the regeneration operation of a ventilation system. 除湿運転と再生運転のタイミングチャートTiming chart of dehumidifying operation and regeneration operation 換気装置の換気運転を示す図The figure which shows the ventilation operation of a ventilation system 換気導管の一部分の分解図Exploded view of a part of the ventilation conduit 換気導管の一部分の断面図Sectional view of a part of the ventilation conduit

本発明の一態様の空気調和機は、室内機と室外機とを備える空気調和機であって、前記室外機に設けられ、室外空気の水分を吸収する吸収材と、前記吸収材を通過し、室外と前記室内機内とを接続し、室外空気が流れる第１の流路と、前記第１の流路に前記室内機に向かう室外空気の流れを発生させる第１のファンと、前記第１の流路における前記吸収材に対する上流側で室外空気を加熱するヒータと、を有し、前記ヒータが室外空気を加熱し、加熱された室外空気が前記吸収材の水分を奪って前記室内機に向かう加湿運転と、前記ヒータが停止し、前記吸収材に水分を捕集されて乾燥した室外空気が前記室内機に向かう除湿運転と、を実行する。 The air conditioner according to one aspect of the present invention is an air conditioner including an indoor unit and an outdoor unit, which is provided in the outdoor unit and passes through an absorbent material that absorbs moisture in the outdoor air and the absorbent material. A first flow path that connects the outside and the inside of the indoor unit and generates an outdoor air flow toward the indoor unit in the first flow path, and the first fan. It has a heater that heats the outdoor air on the upstream side of the absorbent material in the flow path of the above, the heater heats the outdoor air, and the heated outdoor air deprives the absorbent material of water and causes the indoor unit. A humidifying operation toward the indoor unit and a dehumidifying operation in which the heater is stopped and the dry outdoor air whose moisture is collected by the absorbent material is directed toward the indoor unit are executed.

このような一態様によれば、室外空気を室内に供給しつつ、室内湿度を低下させることが可能な空気調和機を提供することができる。 According to such an aspect, it is possible to provide an air conditioner capable of reducing indoor humidity while supplying outdoor air to the room.

例えば、空気調和機が、前記加湿運転または前記除湿運転をユーザが選択するためのコントローラを、さらに有し、前記コントローラを介してユーザによって選択された前記加湿運転または前記除湿運転が実行されてもよい。 For example, even if the air conditioner further has a controller for the user to select the humidification operation or the dehumidification operation, and the humidification operation or the dehumidification operation selected by the user is executed via the controller. good.

例えば、空気調和機が、室内湿度をユーザが設定するためのコントローラと、前記室内機に設けられ、室内湿度を測定する室内湿度センサと、をさらに有し、前記室内湿度センサによって検出される室内湿度が前記コントローラを介して設定された室内湿度になるように、前記加湿運転と前記除湿運転が選択的に実行されてもよい。 For example, the air conditioner further includes a controller for setting the indoor humidity by the user and an indoor humidity sensor provided in the indoor unit to measure the indoor humidity, and the indoor humidity sensor detects the indoor humidity. The humidification operation and the dehumidification operation may be selectively performed so that the humidity becomes the indoor humidity set via the controller.

例えば、前記第１の流路が、前記室内機と室外とに向かって分岐し、空気調和機が、前記第１の流路を流れる室外空気を前記室内機または室外に振り分けるダンパ装置を、さらに有し、前記除湿運転が、前記ダンパ装置が室外空気を前記室内機に振り向けることによって実行され、前記ヒータが室外空気を加熱し且つ前記ダンパ装置が室外空気を室外に振り向けることによって前記吸収材を加熱された室外空気によって乾燥させる再生運転が実行されてもよい。 For example, a damper device in which the first flow path branches toward the indoor unit and the outdoor unit, and the air conditioner distributes the outdoor air flowing through the first flow path to the indoor unit or the outdoor unit. The dehumidifying operation is performed by the damper device directing the outdoor air to the indoor unit, the heater heating the outdoor air, and the damper device directing the outdoor air to the outdoor unit to absorb the air. A regeneration operation may be performed in which the material is dried by heated outdoor air.

例えば、前記除湿運転と前記再生運転とが、交互に実行されてもよい。 For example, the dehumidifying operation and the regeneration operation may be executed alternately.

例えば、空気調和機が、前記吸収材を通過し、室外空気が室外から室外に流れる第２の流路と、前記第２の流路に室外空気の流れを発生させる第２のファンと、をさらに有し、前記加湿運転中は、前記第２のファンが作動し、前記除湿運転中は、前記第２のファンが停止してもよい。 For example, an air conditioner has a second flow path through which the absorbent material is passed and outdoor air flows from the outside to the outside, and a second fan that generates an outdoor air flow in the second flow path. Further, the second fan may be operated during the humidifying operation, and the second fan may be stopped during the dehumidifying operation.

例えば、前記ヒータが、ＰＴＣヒータであってもよい。 For example, the heater may be a PTC heater.

例えば、前記吸収材が、高分子収着材であってもよい。 For example, the absorbent material may be a polymer sorbent.

例えば、前記第１の流路が、室外空気が通過するラビリンスを含んでいてもよい。 For example, the first flow path may include a labyrinth through which outdoor air passes.

以下、本発明の一実施の形態について図面を参照しながら説明する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１は、本発明の一実施の形態に係る空気調和機の概略的構成図である。 FIG. 1 is a schematic configuration diagram of an air conditioner according to an embodiment of the present invention.

図１に示すように、本実施の形態に係る空気調和機１０は、空気調和対象の室内Ｒｉｎに配置される室内機２０と、室外Ｒｏｕｔに配置される室外機３０とを備える。 As shown in FIG. 1, the air conditioner 10 according to the present embodiment includes an indoor unit 20 arranged in the indoor Rin to be air-conditioned and an outdoor unit 30 arranged in the outdoor Rout.

室内機２０には、室内Ｒｉｎの室内空気Ａｉｎと熱交換を行う熱交換器２２と、室内空気Ａｉｎを室内機２０内に誘引するとともに熱交換器２２と熱交換した空気を室内Ｒｉｎに吹き出すためのファン２４とが設けられている。 The indoor unit 20 has a heat exchanger 22 that exchanges heat with the indoor air Ain of the indoor Rin, and an air that attracts the indoor air Ain into the indoor unit 20 and blows out the air that has exchanged heat with the heat exchanger 22 to the indoor Rin. The fan 24 is provided.

室外機３０には、室外Ｒｏｕｔの室外空気Ａｏｕｔと熱交換を行う熱交換器３２と、熱交換器３２を通過する室外空気Ａｏｕｔの流れを発生させるファン３４と、圧縮機３６と、膨張弁３８とが設けられている。 The outdoor unit 30 includes a heat exchanger 32 that exchanges heat with the outdoor air Aout of the outdoor Rout, a fan 34 that generates a flow of the outdoor air Aout that passes through the heat exchanger 32, a compressor 36, and an expansion valve 38. And are provided.

室内機２０の熱交換器２２、室外機３０の熱交換器３２、圧縮機３６、および膨張弁３８が、冷媒配管４０によって接続されることにより、空気調和機１０の冷凍サイクルが構成されている。この冷凍サイクルにより、加熱された室内空気Ａｉｎを室内Ｒｉｎに吹き出す暖房運転、冷却された室内空気Ａｉｎを室内Ｒｉｎに吹き出す冷房運転、および除湿した室内空気Ａｉｎを室内Ｒｉｎに吹き出す除湿運転を、空気調和機１０は実行する。なお、本実施の形態の場合、暖房運転、冷房運転、除湿運転などの空気調和機１０の運転の選択や設定温度などの運転に必要なパラメータ等の設定をユーザが行うためのコントローラ４２を、空気調和機１０は備える。 The heat exchanger 22 of the indoor unit 20, the heat exchanger 32 of the outdoor unit 30, the compressor 36, and the expansion valve 38 are connected by a refrigerant pipe 40 to form a refrigerating cycle of the air conditioner 10. .. By this refrigeration cycle, the heating operation of blowing the heated indoor air Ain to the indoor Rin, the cooling operation of blowing the cooled indoor air Ain to the indoor Rin, and the dehumidifying operation of blowing the dehumidified indoor air Ain to the indoor Rin are performed in air conditioning. Machine 10 executes. In the case of the present embodiment, the controller 42 for the user to select the operation of the air conditioner 10 such as the heating operation, the cooling operation, and the dehumidifying operation and to set the parameters necessary for the operation such as the set temperature. The air conditioner 10 is provided.

さらに、空気調和機１０は、室外空気Ａｏｕｔを室内Ｒｉｎに供給する、すなわち室内Ｒｉｎを換気する換気装置５０を有する。 Further, the air conditioner 10 has a ventilation device 50 that supplies the outdoor air Aout to the indoor Rin, that is, ventilates the indoor Rin.

図２は、室外機の斜視図である。また、図３は、換気装置の内部構成を示す斜視図である。さらに、図４および図５は、換気装置の構成要素の一部を取り外した状態の斜視図および上面図である。さらにまた、図６は、換気装置の分解斜視図である。加えて、図７は、異なる視点から見た換気装置の一部の構成要素の分解斜視図である。そして、図８は、換気装置の概略的な断面図である。 FIG. 2 is a perspective view of the outdoor unit. Further, FIG. 3 is a perspective view showing the internal configuration of the ventilation device. Further, FIGS. 4 and 5 are a perspective view and a top view showing a state in which a part of the components of the ventilation device is removed. Furthermore, FIG. 6 is an exploded perspective view of the ventilation device. In addition, FIG. 7 is an exploded perspective view of some of the components of the ventilator as viewed from different perspectives. FIG. 8 is a schematic cross-sectional view of the ventilation device.

本実施の形態の場合、換気装置５０は、図２および図３に示すように、上方が開いた筺体５２と、筺体５２に蓋をする天板５４とを有する。換気装置５０の筺体５２には、室外空気Ａｏｕｔを筺体５２内に取り込むための複数の吸気口５２ａ、５２ｂ、５２ｃと、筺体５２内に取り込んだ室外空気Ａｏｕｔを外部に排出するための排気口５２ｄ、５２ｅ、５２ｆが設けられている。排気口５２ｄには、図２に示すように、室外機３０の側面に取り付けられ、室内機２０に連通する換気ホースと連結する換気導管５６が接続される。残りの排気口５２ｅ、５２ｆは室外Ｒｏｕｔに連通する。 In the case of the present embodiment, as shown in FIGS. 2 and 3, the ventilation device 50 has a housing 52 having an open upper part and a top plate 54 for covering the housing 52. The housing 52 of the ventilation device 50 has a plurality of intake ports 52a, 52b, 52c for taking in the outdoor air Aout into the housing 52, and an exhaust port 52d for discharging the outdoor air Aout taken into the housing 52 to the outside. , 52e, 52f are provided. As shown in FIG. 2, the exhaust port 52d is connected to a ventilation conduit 56 attached to the side surface of the outdoor unit 30 and connected to a ventilation hose communicating with the indoor unit 20. The remaining exhaust ports 52e and 52f communicate with the outdoor Rout.

換気装置５０は、図４、５、６、および８に示すように、筺体５２内の中央に、室外空気Ａｏｕｔの水分を吸収する吸収材５８を有する。 As shown in FIGS. 4, 5, 6, and 8, the ventilator 50 has an absorbent 58 in the center of the housing 52 that absorbs the moisture of the outdoor air Aout.

吸収材５８は、空気が通過可能な部材であって、通過する空気から水分を捕集するまたは通過する空気に水分を与える部材である。本実施の形態の場合、吸収材は、鉛直方向（Ｚ軸方向）に空気が通過可能であって、鉛直方向に延在する回転中心線Ｃ１を中心にして回転する円盤状の部材である。その吸収材５８は、図６に示すように、円筒状のホルダ６０によって保持され、そのホルダ６０の外歯に係合するギヤ６２を備える吸収材用モータ６４によって回転される。換気装置５０の運転中、吸収材５８は、一定の回転速度で回転し続ける。 The absorbent material 58 is a member through which air can pass, and is a member that collects moisture from the passing air or gives moisture to the passing air. In the case of the present embodiment, the absorbent material is a disk-shaped member that allows air to pass in the vertical direction (Z-axis direction) and rotates about the rotation center line C1 extending in the vertical direction. As shown in FIG. 6, the absorbent material 58 is held by a cylindrical holder 60 and rotated by an absorbent motor 64 having a gear 62 that engages with the external teeth of the holder 60. During the operation of the ventilator 50, the absorbent material 58 continues to rotate at a constant rotation speed.

なお、吸収材５８は、空気中の水分を収着する高分子収着材が好ましい。高分子収着材は、例えば、ポリアクリル酸ナトリウム架橋体から構成される。高分子収着材は、シリカゲルやゼオライトなどの吸着材に比べて、水分を吸収する速度が高く、低い加熱温度で保持する水分を脱離することができ、そして水分を長時間保持することができる。 The absorbent material 58 is preferably a polymer sorbent that sorbs moisture in the air. The polymer sorbent is composed of, for example, a crosslinked product of sodium polyacrylate. Polymer sorbents have a higher rate of absorption of moisture than adsorbents such as silica gel and zeolite, can desorb moisture that is retained at low heating temperatures, and can retain moisture for long periods of time. can.

換気装置５０はまた、図６、７、および８に示すように、室外空気Ａｏｕｔを換気装置５０内に誘引して吸収材５８を通過させ、吸収材５８を通過した室外空気Ａｏｕｔを室内機２０に向かって送風する第１のファン６６を備える。 As shown in FIGS. 6, 7, and 8, the ventilation device 50 also attracts the outdoor air Aout into the ventilation device 50 and passes it through the absorbent material 58, and the outdoor air Aout that has passed through the absorbent material 58 is passed through the indoor unit 20. It is provided with a first fan 66 that blows air toward.

第１のファン６６は、吸収材５８に対して換気装置５０の長手方向（Ｙ軸方向）の一方側に配置され、例えばシロッコファンである。第１のファン６６は、吸収材５８に対して長手方向の一方側の空間を上下に二分割する隔壁板６８に設けられた円筒状部６８ａ内に収容されている。この隔壁板６８により、図８に示すように、吸収材５８の上面５８ａの一部分が接する上側空間Ｓ１と、吸収材５８の下面５８ｂの一部分が接する下側空間Ｓ２とが形成されている。 The first fan 66 is arranged on one side of the ventilation device 50 in the longitudinal direction (Y-axis direction) with respect to the absorbent material 58, and is, for example, a sirocco fan. The first fan 66 is housed in a cylindrical portion 68a provided on the partition wall plate 68 that vertically divides the space on one side in the longitudinal direction with respect to the absorbent material 58. As shown in FIG. 8, the partition plate 68 forms an upper space S1 in which a part of the upper surface 58a of the absorbent material 58 is in contact and a lower space S2 in which a part of the lower surface 58b of the absorbent material 58 is in contact.

隔壁板６８の円筒状部６８ａには、排気口５２ｄに接続する開口６８ｂと、排気口５２ｅと接続する開口６８ｃとが形成されている。また、隔壁板６８には、円筒状部６８ａ内の第１のファン６６に空気を取り込むための貫通穴６８ｄが形成されている。 The cylindrical portion 68a of the partition plate 68 is formed with an opening 68b connected to the exhaust port 52d and an opening 68c connected to the exhaust port 52e. Further, the partition plate 68 is formed with a through hole 68d for taking in air into the first fan 66 in the cylindrical portion 68a.

また、隔壁板６８の円筒状部６８ａには、第１のファン６６を覆うファンカバー７０が取り付けられている。そのファンカバー７０に、第１のファン６６を回転させるモータ７２が設けられている。また、ファンカバー７０には、図７に示すように、隔壁板６８の開口６８ｂ、６８ｃの一方を閉じるダンパ装置７４が設けられている。ダンパ装置７４は、旋回可能なダンパ７４ａを備え、そのダンパ７４ａを旋回させることによって隔壁板６８の開口６８ｂ、６８ｃの一方を閉じるように構成されている。 Further, a fan cover 70 that covers the first fan 66 is attached to the cylindrical portion 68a of the partition plate 68. The fan cover 70 is provided with a motor 72 for rotating the first fan 66. Further, as shown in FIG. 7, the fan cover 70 is provided with a damper device 74 that closes one of the openings 68b and 68c of the partition plate 68. The damper device 74 includes a swivelable damper 74a, and is configured to close one of the openings 68b and 68c of the partition plate 68 by swiveling the damper 74a.

モータ７２が第１のファン６６を回転させると、図４に示すように、筺体５２の吸気口５２ａ、５２ｂを介して、室外空気Ａｏｕｔが筺体５２内に流入する。具体的には、図８に示すように、吸気口５２ａ、５２ｂそれぞれを介して流入した室外空気Ａｏｕｔは、隔壁板６８の上方の上側空間Ｓ１に流入し、吸収材５８の上方に向かって流れる。次に、室外空気Ａｏｕｔは、吸収材５８の上面５８ａから下面５８ｂに向かって吸収材５８を通過する。そして、吸収材５８を通過した室外空気Ａｏｕｔは、隔壁板６８の下方の下側空間Ｓ２内を移動し、隔壁板６８の貫通穴６８ｄを通過して第１のファン６６に取り込まれる。第１のファン６６に取り込まれた室外空気Ａｏｕｔは、開口６８ｂ、６８ｃにおいてダンパ装置７４のダンパ７４ａによって閉じられていない方の開口を通過する。すなわち、室外空気Ａｏｕｔは、排気口５２ｄを通過して最終的に室内機２０内に到達する、または排気口５２ｅを介して室外Ｒｏｕｔに排出される。 When the motor 72 rotates the first fan 66, as shown in FIG. 4, outdoor air Aout flows into the housing 52 through the intake ports 52a and 52b of the housing 52. Specifically, as shown in FIG. 8, the outdoor air Aout that has flowed in through the intake ports 52a and 52b each flows into the upper space S1 above the partition plate 68 and flows upward of the absorbent material 58. .. Next, the outdoor air Aout passes through the absorbent material 58 from the upper surface 58a of the absorbent material 58 toward the lower surface 58b. Then, the outdoor air Aout that has passed through the absorbent material 58 moves in the lower space S2 below the partition plate 68, passes through the through hole 68d of the partition plate 68, and is taken into the first fan 66. The outdoor air Aout taken into the first fan 66 passes through the opening that is not closed by the damper 74a of the damper device 74 at the openings 68b and 68c. That is, the outdoor air Aout passes through the exhaust port 52d and finally reaches the inside of the indoor unit 20, or is discharged to the outdoor Rout through the exhaust port 52e.

本実施の形態の場合、図４および図５に示すように、筺体５２の吸気口５２ａ、５２ｂとの間には、ファンカバー７０とモータ７２とが存在する。そのため、吸収材５８を通過し、室外Ｒｏｕｔと室内機２０内とを接続し、室外空気Ａｏｕｔが流れる流路が実質的に２つ存在する。図６に示すように、２つの流路Ｒ１、Ｒ２は、吸収材５８の通過後に互いに合流する合流路を含み、その合流路に第１のファン６６が設けられている。換気装置５０は、吸気口５２ａから始まる流路Ｒ１に対して設けられた第１のヒータ７６Ａと、吸気口５２ｂから始まる流路Ｒ２に対して設けられた第２のヒータ７６Ｂとを有する。このように室内機２０に向かう室外空気Ａｏｕｔの流路を複数設け、その流路それぞれに第１および第２のヒータ７６Ａ、７６Ｂを設ける理由については後述する。 In the case of the present embodiment, as shown in FIGS. 4 and 5, a fan cover 70 and a motor 72 exist between the intake ports 52a and 52b of the housing 52. Therefore, there are substantially two flow paths that pass through the absorbent material 58, connect the outdoor Rout and the indoor unit 20, and allow the outdoor air Aout to flow. As shown in FIG. 6, the two flow paths R1 and R2 include a merging flow path that merges with each other after passing through the absorbent material 58, and a first fan 66 is provided in the merging flow path. The ventilation device 50 has a first heater 76A provided for the flow path R1 starting from the intake port 52a and a second heater 76B provided for the flow path R2 starting from the intake port 52b. The reason why a plurality of outdoor air Aout flow paths leading to the indoor unit 20 are provided and the first and second heaters 76A and 76B are provided in each of the flow paths will be described later.

図４および図５に示すように、第１および第２のヒータ７６Ａ、７６Ｂは、吸収材５８近傍に配置される。具体的には、室外空気Ａｏｕｔの流路Ｒ１、Ｒ２における吸収材５８に対して上流側に、第１および第２のヒータ７６Ａ、７６Ｂが配置されている。本実施の形態の場合、第１および第２のヒータ７６Ａ、７６Ｂは、隔壁板７８に設けられている。また、図４に示すように、ヒータ７６Ａ、７６Ｂ、および流路Ｒ１、Ｒ２が通過する吸収材５８の上面５８ａの部分は、ヒータカバー８０によって覆われている。これにより、第１および第２のヒータ７６Ａ、７６Ｂによって加熱された室外空気Ａｏｕｔが、吸収材５８を通過することができる。なお、第１および第２のヒータ７６Ａ、７６Ｂによる室外空気Ａｏｕｔの加熱の詳細については後述する。 As shown in FIGS. 4 and 5, the first and second heaters 76A and 76B are arranged in the vicinity of the absorbent material 58. Specifically, the first and second heaters 76A and 76B are arranged on the upstream side of the absorbent material 58 in the flow paths R1 and R2 of the outdoor air Aout. In the case of this embodiment, the first and second heaters 76A and 76B are provided on the partition plate 78. Further, as shown in FIG. 4, a portion of the upper surface 58a of the absorbent material 58 through which the heaters 76A and 76B and the flow paths R1 and R2 pass is covered with the heater cover 80. As a result, the outdoor air Aout heated by the first and second heaters 76A and 76B can pass through the absorbent material 58. The details of heating the outdoor air Aout by the first and second heaters 76A and 76B will be described later.

第１および第２のヒータ７６Ａ、７６Ｂは、同一の加熱能力を備えるヒータであってもよいし、異なる加熱能力を備えるヒータであってもよい。また、第１および第２のヒータ７６Ａ、７６Ｂは、電流が流れて温度が上昇すると電気抵抗が増加する、すなわち過剰な加熱温度の上昇を抑制することができるＰＴＣ（Ｐｏｓｉｔｉｖｅ Ｔｅｍｐｅｒａｔｕｒｅ Ｃｏｅｆｆｉｃｉｅｎｔ）ヒータが好ましい。ニクロム線やカーボン繊維などを用いるヒータの場合、電流が流れ続けると加熱温度（表面温度）が上昇し続けるため、その温度をモニタリングする必要がある。ＰＴＣヒータの場合、ヒータ自体が加熱温度を一定の温度範囲内で調節するために、加熱温度をモニタリングする必要がなくなる。 The first and second heaters 76A and 76B may be heaters having the same heating capacity or heaters having different heating capacities. Further, the first and second heaters 76A and 76B are preferably PTC (Positive Temperature Coefficient) heaters capable of increasing the electric resistance when a current flows and the temperature rises, that is, suppressing an excessive rise in the heating temperature. .. In the case of a heater using nichrome wire or carbon fiber, the heating temperature (surface temperature) continues to rise as the current continues to flow, so it is necessary to monitor that temperature. In the case of a PTC heater, since the heater itself adjusts the heating temperature within a certain temperature range, it is not necessary to monitor the heating temperature.

図８に示すように、第１および第２のヒータ７６Ａ、７６Ｂには、ヒータカバー８０によって覆われている。そのため、流路Ｒ１、Ｒ２を流れる室外空気Ａｏｕｔは、まず、第１および第２のヒータ７６Ａ、７６Ｂに進入するために、側壁部８０ａの外側面に沿って降下する。次に、室外空気Ａｏｕｔは、隙間に進入して上方向に移動する。続いて、室外空気Ａｏｕｔは、第１および第２のヒータ７６Ａ、７６Ｂを貫通して移動する。そして、室外空気Ａｏｕｔは、吸収材５８の上面５８ａに向かって降下する。すなわち、２つの流路Ｒ１、Ｒ２は、室外空気Ａｏｕｔが通過するラビリンスを含んでいる。 As shown in FIG. 8, the first and second heaters 76A and 76B are covered with a heater cover 80. Therefore, the outdoor air Aout flowing through the flow paths R1 and R2 first descends along the outer surface of the side wall portion 80a in order to enter the first and second heaters 76A and 76B. Next, the outdoor air Aout enters the gap and moves upward. Subsequently, the outdoor air Aout moves through the first and second heaters 76A and 76B. Then, the outdoor air Aout descends toward the upper surface 58a of the absorbent material 58. That is, the two flow paths R1 and R2 include a labyrinth through which the outdoor air Aout passes.

室外空気Ａｏｕｔが流れる流路Ｒ１、Ｒ２が室外空気Ａｏｕｔが通過するラビリンスを含むことにより、室外空気Ａｏｕｔに含まれる塵や砂などが換気導管５６、室内機２０、および室内Ｒｉｎに届くことが抑制される。すなわち、室外空気Ａｏｕｔがラビリンスを移動するときに塵や砂などが重力によって室外空気Ａｏｕｔから分離される。なお、室外空気Ａｏｕｔから分離した塵などを受け止めて回収するトレイ８２が、第１および第２のヒータ７６Ａ、７６Ｂ近傍の隔壁板７８の部分に設けられている。 Since the flow paths R1 and R2 through which the outdoor air Aout flows include a labyrinth through which the outdoor air Aout passes, dust and sand contained in the outdoor air Aout are suppressed from reaching the ventilation conduit 56, the indoor unit 20, and the indoor Rin. Will be done. That is, when the outdoor air Aout moves through the labyrinth, dust, sand, and the like are separated from the outdoor air Aout by gravity. A tray 82 for receiving and collecting dust and the like separated from the outdoor air Aout is provided on the partition wall plate 78 near the first and second heaters 76A and 76B.

図４、５、６、および８に示すように、換気装置５０は、室外空気Ａｏｕｔの流路として、流路Ｒ１、Ｒ２以外の流路Ｒ３を備える。 As shown in FIGS. 4, 5, 6 and 8, the ventilation device 50 includes a flow path R3 other than the flow paths R1 and R2 as the flow path of the outdoor air Aout.

室外空気Ａｏｕｔの流路Ｒ３は、流路Ｒ１、Ｒ２と異なり、室内機２０内に接続していない。流路Ｒ３は、吸収材５８を通過し、室外空気Ａｏｕｔが室外Ｒｏｕｔから室外Ｒｏｕｔに流れる流路である。 Unlike the flow paths R1 and R2, the flow path R3 of the outdoor air Aout is not connected to the inside of the indoor unit 20. The flow path R3 is a flow path through which the absorbent material 58 passes and the outdoor air Aout flows from the outdoor Rout to the outdoor Rout.

具体的には、流路Ｒ３は、吸気口５２ｃから始まり、吸収材５８をその下面５８ｂから上面５８ａに向かって通過し、排気口５２ｆに至る。その流路Ｒ３に室外空気Ａｏｕｔの流れが発生させる第２のファン８４を、換気装置５０は備える。 Specifically, the flow path R3 starts from the intake port 52c, passes through the absorbent material 58 from the lower surface 58b toward the upper surface 58a, and reaches the exhaust port 52f. The ventilation device 50 includes a second fan 84 that generates a flow of outdoor air Aout in the flow path R3.

第２のファン８４は、図６に示すように、吸収材５８に対して換気装置５０の長手方向（Ｙ軸方向）の他方側に配置され、例えばシロッコファンである。第２のファン８４は、筺体５２の底板部５２ｇの外側面に取り付けられたモータ８６によって回転される。また、第２のファン８４は、筺体５２の底板部５２ｇの内側面に設けられた円筒状部５２ｈ内に収容されている。円筒状部５２ｈの内部空間は、排気口５２ｆに連通している。 As shown in FIG. 6, the second fan 84 is arranged on the other side of the ventilation device 50 in the longitudinal direction (Y-axis direction) with respect to the absorbent material 58, and is, for example, a sirocco fan. The second fan 84 is rotated by a motor 86 attached to the outer surface of the bottom plate portion 52 g of the housing 52. Further, the second fan 84 is housed in a cylindrical portion 52h provided on the inner surface of the bottom plate portion 52g of the housing 52. The internal space of the cylindrical portion 52h communicates with the exhaust port 52f.

また、筺体５２の円筒状部５２ｈ上には、第２のファン８４を覆う隔壁板７８が取り付けられている。この隔壁板７８は、吸収材５８に対して長手方向（Ｙ軸方向）の一方側の空間を上下に二分割する。また、隔壁板７８には、室外空気Ａｏｕｔを第２のファン８４内に取り込むための貫通穴７８ａが設けられている。さらに、隔壁板７８には、上面５８ａを覆うことなく吸収材５８を回転可能に収容する吸収材収容部７８ｂが設けられている。 Further, a partition plate 78 covering the second fan 84 is mounted on the cylindrical portion 52h of the housing 52. The partition plate 78 divides the space on one side in the longitudinal direction (Y-axis direction) into upper and lower parts with respect to the absorbent material 58. Further, the partition plate 78 is provided with a through hole 78a for taking the outdoor air Aout into the second fan 84. Further, the partition plate 78 is provided with an absorbent material accommodating portion 78b for rotatably accommodating the absorbent material 58 without covering the upper surface 58a.

モータ８６が第２のファン８４を回転させると、図４に示すように、筺体５２の吸気口５２ｃを介して、室外空気Ａｏｕｔが筺体５２内に流入する。具体的には、図８に示すように、吸気口５２ｃを介して流入した室外空気Ａｏｕｔは、隔壁板７８の下方の下側空間Ｓ４に流入し、吸収材５８の下方に向かって流れる。次に、室外空気Ａｏｕｔは、吸収材５８の下面５８ｂから上面５８ａに向かって吸収材５８を通過する。そして、吸収材５８を通過した室外空気Ａｏｕｔは、隔壁板７８の上方の上側空間Ｓ３内を移動し、隔壁板７８の貫通穴７８ａを通過して第２のファン８４に取り込まれる。第２のファン８４に取り込まれた室外空気Ａｏｕｔは、排気口５２ｆを介して室外Ｒｏｕｔに排出される。 When the motor 86 rotates the second fan 84, as shown in FIG. 4, the outdoor air Aout flows into the housing 52 through the intake port 52c of the housing 52. Specifically, as shown in FIG. 8, the outdoor air Aout that has flowed in through the intake port 52c flows into the lower space S4 below the partition plate 78 and flows downward of the absorbent material 58. Next, the outdoor air Aout passes through the absorbent material 58 from the lower surface 58b of the absorbent material 58 toward the upper surface 58a. Then, the outdoor air Aout that has passed through the absorbent material 58 moves in the upper space S3 above the partition wall plate 78, passes through the through hole 78a of the partition wall plate 78, and is taken into the second fan 84. The outdoor air Aout taken in by the second fan 84 is discharged to the outdoor Rout via the exhaust port 52f.

なお、吸収材５８の下方の下側空間Ｓ２、Ｓ４との間で室外空気Ａｏｕｔの往来を遮断するために、図６および８に示すように、筺体５２は、その底板部５２ｇにシール部５２ｊを備える。また、吸収材５８の上方の上側空間Ｓ１、Ｓ３との間で室外空気Ａｏｕｔの往来を遮断するために、隔壁板７８がシール部７８ｃを備えるとともに、また、隔壁板７８と天板５４との間をシールするシール部材８８がこれらの間に設けられている。これにより、流路Ｒ１、Ｒ２を流れる室外空気Ａｏｕｔと流路Ｒ３を流れる室外空気Ａｏｕｔとが、異なる位置で吸収材５８を通過することができるとともに、互いに混合されることが抑制される。 In addition, as shown in FIGS. 6 and 8, in order to block the traffic of the outdoor air Aout between the lower spaces S2 and S4 below the absorbent material 58, the housing 52 has a seal portion 52j on its bottom plate portion 52g. To prepare for. Further, in order to block the traffic of outdoor air Aout between the upper spaces S1 and S3 above the absorbent material 58, the partition plate 78 is provided with a sealing portion 78c, and the partition plate 78 and the top plate 54 are provided. A sealing member 88 for sealing between them is provided between them. As a result, the outdoor air Aout flowing through the flow paths R1 and R2 and the outdoor air Aout flowing through the flow paths R3 can pass through the absorber 58 at different positions and are prevented from being mixed with each other.

ここまでは、換気装置５０の構成について説明してきた。ここからは換気装置５０の動作について説明する。 Up to this point, the configuration of the ventilation device 50 has been described. From here, the operation of the ventilation device 50 will be described.

換気装置５０は、以下で説明する加湿運転、除湿運転、再生運転、および換気運転を実行するように構成されている。 The ventilation device 50 is configured to perform the humidification operation, the dehumidification operation, the regeneration operation, and the ventilation operation described below.

図９および図１０は、換気装置の加湿運転を示す図である。また、図１１は、加湿運転のタイミングチャートを示している。 9 and 10 are diagrams showing the humidification operation of the ventilation device. Further, FIG. 11 shows a timing chart of the humidification operation.

図９、１０、および１１に示すように、換気装置５０の加湿運転は、第１および第２のヒータ７６Ａ、７６Ｂの少なくとも一方が作動した状態で行われる。室内Ｒｉｎの室内湿度を小さく増加させる場合、図９に示すように、第１および第２のヒータ７６Ａ、７６Ｂの少なくとも一方が作動する。一方、室内Ｒｉｎの室内湿度を大きく増加させる場合、図１０に示すように、第１および第２のヒータ７６Ａ、７６Ｂの両方が作動する。また、加湿運転中、第１および第２のファン６６、８４の両方が回転する。さらに、加湿運転中、ダンパ７４ａが、室外空気Ａｏｕｔを室内機２０に振り向けるために、排気口５２ｅを閉じる（ＩＮ状態）。 As shown in FIGS. 9, 10 and 11, the humidification operation of the ventilation device 50 is performed with at least one of the first and second heaters 76A and 76B operating. When the indoor humidity of the indoor Rin is slightly increased, at least one of the first and second heaters 76A and 76B is operated as shown in FIG. On the other hand, when the indoor humidity of the indoor Rin is greatly increased, both the first and second heaters 76A and 76B operate as shown in FIG. Further, during the humidification operation, both the first and second fans 66 and 84 rotate. Further, during the humidification operation, the damper 74a closes the exhaust port 52e (IN state) in order to direct the outdoor air Aout to the indoor unit 20.

このような加湿運転によれば、第１および第２のヒータ７６Ａ、７６Ｂの少なくとも一方によって加熱された室外空気Ａｏｕｔが、吸収材５８が保持する水分を奪って室内Ｒｉｎに供給される。その結果、室内Ｒｉｎが加湿される。また、加熱された室外空気Ａｏｕｔによって水分を奪われた吸収材５８は、流路Ｒ３を流れる室外空気Ａｏｕｔから水分を捕集する。それにより、吸収材５８は一定量の水分を保持し続けることができ、その結果として加湿運転を継続することができる。 According to such a humidifying operation, the outdoor air Aout heated by at least one of the first and second heaters 76A and 76B takes away the moisture held by the absorbent 58 and is supplied to the indoor Rin. As a result, the indoor Rin is humidified. Further, the absorbent material 58 deprived of moisture by the heated outdoor air Aout collects moisture from the outdoor air Aout flowing through the flow path R3. As a result, the absorbent 58 can continue to retain a certain amount of water, and as a result, the humidification operation can be continued.

このように室外空気Ａｏｕｔの加熱手段として複数のヒータ７６Ａ、７６Ｂを使用することにより、１つの加熱手段を用いる場合に比べて、室外空気Ａｏｕｔの水分量（吸収材５８から奪う水分量）を細かく調節することができる。すなわち、室内Ｒｉｎの加湿量をきめ細やかに制御することができる。例えば、第１および第２のヒータ７６Ａ、７６Ｂが一定の温度で作動するタイプの場合、その第１および第２のヒータ７６Ａ、７６ＢそれぞれをＯＮ／ＯＦＦすることにより、室外空気Ａｏｕｔの水分量を三段階で調節することができる。その結果、過剰な加湿が抑制できるとともに、ヒータが無駄に電力を消費することが抑制できる（１つの加熱手段を用いる場合に比べて）。 By using a plurality of heaters 76A and 76B as the heating means for the outdoor air Aout in this way, the amount of water in the outdoor air Aout (the amount of water taken from the absorbent 58) is finer than in the case of using one heating means. Can be adjusted. That is, the humidification amount of the indoor Rin can be finely controlled. For example, in the case of a type in which the first and second heaters 76A and 76B operate at a constant temperature, the water content of the outdoor air Aout can be reduced by turning on / off each of the first and second heaters 76A and 76B. It can be adjusted in three stages. As a result, excessive humidification can be suppressed, and the heater can suppress unnecessary power consumption (compared to the case where one heating means is used).

なお、第１および第２のヒータ７６Ａ、７６Ｂそれぞれが、ＯＮ／ＯＦＦのみならず、出力調節可能なヒータである場合、室外空気Ａｏｕｔの水分量（吸収材５８から奪う水分量）をさらに細かく調節することができる。これにより、室内湿度をユーザが設定した設定値で維持する場合に、その維持が容易になる。この場合、図１に示すコントローラ４２がユーザによる室内湿度の設定操作が可能に構成され、室内機２０に室内湿度を測定する室内湿度センサ９０が設けられる。室内湿度センサ９０によって測定される室内湿度（測定値）が設定値になるように、第１および第２のヒータ７６Ａ、７６Ｂの出力が制御される。例えば、室内湿度センサ９０の測定値と設定値との差が大きい場合、第１および第２のヒータ７６Ａ、７６Ｂの両方が最大出力で作動する。また例えば、室内湿度センサ９０の測定値と設定値との差が小さい場合、第１および第２のヒータ７６Ａ、７６Ｂの一方のみが作動し、その出力値を調節する。 When each of the first and second heaters 76A and 76B is a heater whose output can be adjusted as well as ON / OFF, the amount of water in the outdoor air Aout (the amount of water taken from the absorbent 58) can be adjusted more finely. can do. This facilitates maintenance when the room humidity is maintained at a set value set by the user. In this case, the controller 42 shown in FIG. 1 is configured to allow the user to set the indoor humidity, and the indoor unit 20 is provided with the indoor humidity sensor 90 for measuring the indoor humidity. The outputs of the first and second heaters 76A and 76B are controlled so that the indoor humidity (measured value) measured by the indoor humidity sensor 90 becomes a set value. For example, when the difference between the measured value and the set value of the indoor humidity sensor 90 is large, both the first and second heaters 76A and 76B operate at the maximum output. Further, for example, when the difference between the measured value and the set value of the indoor humidity sensor 90 is small, only one of the first and second heaters 76A and 76B operates to adjust the output value.

また、例えば室内湿度センサ９０の測定値と設定値とが略一致するなどの場合、第１および第２のヒータ７６Ａ、７６Ｂの出力を一定に維持した状態で、第１のファン６６の回転数を調節してもよい。室内湿度センサ９０の測定値に基づいて第１のファン６６を調節することにより、第１および第２のヒータ７６Ａ、７６Ｂによって調節する場合に比べて、調節可能範囲は小さいものの、室内湿度を素早く調節することができる。 Further, for example, when the measured value of the indoor humidity sensor 90 and the set value substantially match, the rotation speed of the first fan 66 is maintained while the outputs of the first and second heaters 76A and 76B are kept constant. May be adjusted. By adjusting the first fan 66 based on the measured value of the indoor humidity sensor 90, the adjustable range is smaller than the case of adjusting by the first and second heaters 76A and 76B, but the indoor humidity can be quickly adjusted. Can be adjusted.

さらに、第１および第２のヒータ７６Ａ、７６Ｂの出力調節は、吸収材５８が保持する水分量に基づいて実行されてもよい。吸収材５８から奪って保持できる室外空気Ａｏｕｔの水分量は、その温度、すなわち第１および第２のヒータ７６Ａ、７６Ｂの出力によって決まる。したがって、最大出力の第１および第２のヒータ７６Ａ、７６Ｂによって加熱された室外空気Ａｏｕｔが保持できる水分量に比べて吸収材５８が保持する水分量が少ない場合、第１および第２のヒータ７６Ａ、７６Ｂは、電力を無駄に消費して室外空気Ａｏｕｔを加熱することになる。このようなヒータの無駄な電力消費を抑制するために、第１および第２のヒータ７６Ａ、７６Ｂの出力調節は、吸収材５８が保持する水分量に基づいて実行されるのが好ましい。なお、吸収材５８が保持する水分量は、例えば、室外Ｒｏｕｔの湿度と第２のファン６６の回転時間に基づいて推定することができる。この場合、室外機３０に室外湿度を測定する室外湿度センサ（図示せず）が設けられる。 Further, the output adjustment of the first and second heaters 76A and 76B may be performed based on the amount of water retained by the absorbent material 58. The amount of water in the outdoor air Aout that can be taken away from the absorbent 58 and held is determined by its temperature, that is, the output of the first and second heaters 76A and 76B. Therefore, when the amount of water held by the absorbent 58 is smaller than the amount of water held by the outdoor air Aout heated by the first and second heaters 76A and 76B having the maximum output, the first and second heaters 76A , 76B wastefully consumes electric power to heat the outdoor air Aout. In order to suppress such wasteful power consumption of the heater, it is preferable that the output adjustment of the first and second heaters 76A and 76B is performed based on the amount of water retained by the absorbent material 58. The amount of water retained by the absorbent 58 can be estimated based on, for example, the humidity of the outdoor Rout and the rotation time of the second fan 66. In this case, the outdoor unit 30 is provided with an outdoor humidity sensor (not shown) for measuring the outdoor humidity.

さらにまた、図１１に示すように、空気調和機１０の空調運転停止後（タイミングＴｅ後）、第２のファン８４が所定の時間作動してもよい。この場合、室内機２０のファン２４、室外機３０のファン３４、および圧縮機３６が停止しているにもかかわらず、換気装置５０の第２のファン８４が回転する。これにより、空気調和機１０の空調運転停止後、吸収材５８に水分が蓄えられる。その結果、その後の空調運転の開始と同時に加湿運転が実行された場合、吸収材５８の水分の保持量が不足なく十分な状態で、加湿運転を確実に実行することができる。すなわち、空調運転の開始後すぐに、室内Ｒｉｎの加湿を十分に且つ素早く行うことができる。 Furthermore, as shown in FIG. 11, after the air conditioning operation of the air conditioner 10 is stopped (after the timing Te), the second fan 84 may be operated for a predetermined time. In this case, the second fan 84 of the ventilation device 50 rotates even though the fan 24 of the indoor unit 20, the fan 34 of the outdoor unit 30, and the compressor 36 are stopped. As a result, after the air conditioning operation of the air conditioner 10 is stopped, water is stored in the absorbent material 58. As a result, when the humidifying operation is executed at the same time as the start of the subsequent air conditioning operation, the humidifying operation can be reliably executed with the absorbent material 58 having a sufficient amount of water retained. That is, immediately after the start of the air conditioning operation, the indoor Rin can be sufficiently and quickly humidified.

加えて、図１１に示すように、空気調和機１０の空調運転開始前（タイミングＴ０前）に、第２のファン８４が作動し始めてもよい。これにより、空気調和機１０の空調運転開始前に、吸収材５８に水分が蓄えられる。その結果、その後の空調運転の開始と同時に加湿運転が実行された場合、吸収材５８の水分の保持量が不足なく十分な状態で、加湿運転を確実に実行することができる。なお、この場合、図１に示すコントローラ４２が、ユーザによる空調運転の開始時間の設定操作が可能に構成されており、その開始時間の所定の時間前から第２のファン８４が回転し始める。所定の時間は、例えば、吸収材５８の水分の保持量がゼロから最大になるまでに要する時間である。 In addition, as shown in FIG. 11, the second fan 84 may start operating before the start of the air conditioning operation of the air conditioner 10 (before the timing T0). As a result, moisture is stored in the absorbent material 58 before the start of the air conditioning operation of the air conditioner 10. As a result, when the humidifying operation is executed at the same time as the start of the subsequent air conditioning operation, the humidifying operation can be reliably executed with the absorbent material 58 having a sufficient amount of water retained. In this case, the controller 42 shown in FIG. 1 is configured to allow the user to set the start time of the air conditioning operation, and the second fan 84 starts to rotate from a predetermined time before the start time. The predetermined time is, for example, the time required from zero to the maximum amount of water retained in the absorbent material 58.

次に、換気装置５０の除湿運転と再生運転について説明する。 Next, the dehumidifying operation and the regeneration operation of the ventilation device 50 will be described.

図１２は、換気装置の除湿運転と再生運転とを示す図である。また、図１３は、除湿運転と再生運転のタイミングチャートである。 FIG. 12 is a diagram showing a dehumidifying operation and a regeneration operation of the ventilation device. Further, FIG. 13 is a timing chart of the dehumidifying operation and the regeneration operation.

図１２および１３に示すように、換気装置５０の除湿運転は、第１および第２のヒータ７６Ａ、７６Ｂが停止した状態（ＯＦＦ状態）で行われる。また、第１のファン６６が回転し、第２のファン８４が停止する。そして、ダンパ７４ａが室外空気Ａｏｕｔを室内機２０に振り向けるために、排気口５２ｅを閉じる（ＩＮ状態）。 As shown in FIGS. 12 and 13, the dehumidifying operation of the ventilation device 50 is performed in a state where the first and second heaters 76A and 76B are stopped (OFF state). Further, the first fan 66 rotates and the second fan 84 stops. Then, the damper 74a closes the exhaust port 52e (IN state) in order to direct the outdoor air Aout to the indoor unit 20.

このような除湿運転によれば、室外空気Ａｏｕｔが、加熱されることなく、吸収材５８を通過する。それにより、室外空気Ａｏｕｔは、その水分を吸収材５８によって捕集され、乾燥された状態で室内Ｒｉｎに供給される。その結果、室内Ｒｉｎが除湿される。 According to such a dehumidifying operation, the outdoor air Aout passes through the absorbent 58 without being heated. As a result, the outdoor air Aout collects its moisture by the absorbent 58 and is supplied to the indoor Rin in a dry state. As a result, the indoor Rin is dehumidified.

除湿運転を継続中、吸収材５８は室外空気Ａｏｕｔの水分を捕集し続ける。そのため、吸収材５８は、いずれは、これ以上水分を保持することができない飽和状態に至る。そこで、吸収材５８の捕集能力を再生させる再生運転が実行される。 While the dehumidifying operation is being continued, the absorbent 58 continues to collect the moisture in the outdoor air Aout. Therefore, the absorbent material 58 eventually reaches a saturated state in which it cannot retain any more water. Therefore, a regeneration operation for regenerating the collecting capacity of the absorbent material 58 is executed.

図１２および１３に示すように、換気装置５０の再生運転は、第１および第２のヒータ７６Ａ、７６Ｂが作動した状態（ＯＮ状態）で行われる。また、第１のファン６６が回転し、第２のファン８４が停止する。そして、ダンパ７４ａが室外空気Ａｏｕｔを室内機２０ではなく室外Ｒｏｕｔに振り向けるために、排気口５２ｄを閉じる（ＯＵＴ状態）。 As shown in FIGS. 12 and 13, the regeneration operation of the ventilation device 50 is performed in a state (ON state) in which the first and second heaters 76A and 76B are operated (ON state). Further, the first fan 66 rotates and the second fan 84 stops. Then, the damper 74a closes the exhaust port 52d (OUT state) in order to direct the outdoor air Aout to the outdoor Rout instead of the indoor unit 20.

このような再生運転によれば、第１および第２のヒータ７６Ａ、７６Ｂの両方によって加熱された室外空気Ａｏｕｔが、吸収材５８が保持する水分を奪って室外Ｒｏｕｔに排出される。その結果、吸収材５８が乾燥し、その水分捕集能力が再生される。 According to such a regeneration operation, the outdoor air Aout heated by both the first and second heaters 76A and 76B deprives the absorbent material 58 of the moisture and is discharged to the outdoor Rout. As a result, the absorbent 58 is dried and its water collecting ability is regenerated.

再生運転は、除湿運転と対で実行される。具体的には、除湿運転の継続時間が、吸収材５８が飽和状態になるまでの時間に比べて長い場合に、実行される。この場合、除湿運転と再生運転は交互に実行される。これにより、除湿運転が断続的に継続される。 The regeneration operation is performed in pairs with the dehumidification operation. Specifically, it is executed when the duration of the dehumidifying operation is longer than the time until the absorbent material 58 becomes saturated. In this case, the dehumidifying operation and the regeneration operation are alternately executed. As a result, the dehumidifying operation is continued intermittently.

図１４は、換気装置の換気運転を示す図である。 FIG. 14 is a diagram showing a ventilation operation of the ventilation device.

図１４に示すように、換気装置５０の換気運転は、第１および第２のヒータ７６Ａ、７６Ｂが停止した状態（ＯＦＦ状態）で行われる。また、第１のファン６６が回転し、第２のファン８４が停止する。そして、ダンパ７４ａが室外空気Ａｏｕｔを室内機２０に振り向けるために、排気口５２ｅを閉じる（ＩＮ状態）。 As shown in FIG. 14, the ventilation operation of the ventilation device 50 is performed in a state where the first and second heaters 76A and 76B are stopped (OFF state). Further, the first fan 66 rotates and the second fan 84 stops. Then, the damper 74a closes the exhaust port 52e (IN state) in order to direct the outdoor air Aout to the indoor unit 20.

このような換気運転によれば、室外空気Ａｏｕｔがそのまま室内Ｒｉｎに供給される。その結果、室内Ｒｉｎが換気される。 According to such a ventilation operation, the outdoor air Aout is supplied to the indoor Rin as it is. As a result, the indoor Rin is ventilated.

これらの換気装置５０の加湿運転、除湿運転、および換気運転の実行は、ユーザによって決定される、例えば、ユーザがコントローラ４２を介して換気装置５０の運転を選択することにより、加湿運転、除湿運転、および換気運転が実行される。また、コントローラ４２を介してユーザが室内湿度を設定することが可能に空気調和機１０が構成されている場合、室内湿度センサ９０の測定値が設定値なるように、加湿運転と除湿運転とが選択的に実行される。なお、再生運転は、ユーザの操作ではなく、除湿運転の継続時間や吸収材５８の水分保持量に基づいて実行される。 The execution of the humidification operation, the dehumidification operation, and the ventilation operation of these ventilation devices 50 is determined by the user, for example, the humidification operation and the dehumidification operation are performed by the user selecting the operation of the ventilation device 50 via the controller 42. , And ventilation operation is performed. Further, when the air conditioner 10 is configured so that the user can set the indoor humidity via the controller 42, the humidification operation and the dehumidification operation are performed so that the measured value of the indoor humidity sensor 90 becomes the set value. It is executed selectively. The regeneration operation is not performed by the user, but is executed based on the duration of the dehumidifying operation and the amount of water retained in the absorbent material 58.

なお、換気装置５０の運転（特に加湿運転）によって室外空気Ａｏｕｔが図１に示す換気導管５６に流れると、周囲の環境や季節によっては、結露が生じて換気導管５６内に水が溜まる可能性がある。具体的には、換気導管５６において最下部に水が溜まる場合がある。 If the outdoor air Aout flows into the ventilation conduit 56 shown in FIG. 1 due to the operation of the ventilation device 50 (particularly the humidification operation), dew condensation may occur and water may collect in the ventilation conduit 56 depending on the surrounding environment and the season. There is. Specifically, water may collect at the bottom of the ventilation conduit 56.

本実施の形態の場合、図２に示すように、換気導管５６は、室外機３０の側面に固定された固定配管９２と、固定配管９２と室内機２０とを接続する換気ホース（図示せず）と、換気ホースの先端に取り付けられて固定配管９２の先端部９２ａに対して着脱可能に接続するコネクタ９４とを含んでいる。固定配管９２の先端部９２ａが、換気導管５６において最も下に位置し、水が溜まる可能性がある。 In the case of the present embodiment, as shown in FIG. 2, the ventilation conduit 56 is a fixed pipe 92 fixed to the side surface of the outdoor unit 30, and a ventilation hose connecting the fixed pipe 92 and the indoor unit 20 (not shown). ) And a connector 94 attached to the tip of the ventilation hose and detachably connected to the tip 92a of the fixed pipe 92. The tip 92a of the fixed pipe 92 is located at the bottom of the ventilation conduit 56 and may collect water.

図１５は換気導管の一部分の分解図である。また、図１６は換気導管の一部分の断面図である。 FIG. 15 is an exploded view of a part of the ventilation conduit. Further, FIG. 16 is a cross-sectional view of a part of the ventilation conduit.

図１６に示すように、固定配管９２の先端部９２ａにおける最下部には、貫通穴９２ｂが形成されている。この貫通穴９２ｂを介して、換気導管５６に溜まった水が外部に排出される。なお、室外機３０から室内機２０に向かう室外空気Ａｏｕｔが貫通穴９２ｂを介して外部に漏れないように、固定配管９２は、室外機３０側から延在して貫通穴９２ｂを覆う半円筒状のフード部９２ｃを備えている。 As shown in FIG. 16, a through hole 92b is formed at the lowermost portion of the tip portion 92a of the fixed pipe 92. The water accumulated in the ventilation conduit 56 is discharged to the outside through the through hole 92b. The fixed pipe 92 extends from the outdoor unit 30 side and covers the through hole 92b so that the outdoor air Aout from the outdoor unit 30 to the indoor unit 20 does not leak to the outside through the through hole 92b. The hood portion 92c is provided.

さらには、フード部９２ｃに入って貫通穴９２ｂに至る水の流路は、水の流れる向きが室外空気Ａｏｕｔの向きと逆方向になるように設けられており、それにより室外空気Ａｏｕｔがフード部９２ｃに入って貫通穴９２ｂから無駄に抜けることが抑制されている。また、貫通穴９２ｂの径は２．５ｍｍ以上が望ましい。これは、水滴の径が２ｍｍ程度であり、貫通穴にブリッジして塞いでしまわないようにするためである。 Further, the water flow path that enters the hood portion 92c and reaches the through hole 92b is provided so that the direction of water flow is opposite to the direction of the outdoor air Aout, whereby the outdoor air Aout is provided in the hood portion. It is prevented from entering the 92c and unnecessarily exiting from the through hole 92b. Further, the diameter of the through hole 92b is preferably 2.5 mm or more. This is because the diameter of the water droplet is about 2 mm, and the water droplet is bridged to the through hole so as not to be blocked.

このような本実施の形態によれば、室外空気を室内に供給しつつ、室内湿度を低下させることが可能な空気調和機を提供することができる。 According to such an embodiment, it is possible to provide an air conditioner capable of reducing indoor humidity while supplying outdoor air to the room.

以上、上述の実施の形態を挙げて本発明を説明したが、本発明は上述の実施の形態に限定されない。 Although the present invention has been described above with reference to the above-described embodiments, the present invention is not limited to the above-mentioned embodiments.

例えば、上述の実施の形態の場合、室外空気を加熱する加熱手段として、第１および第２のヒータ７６Ａ、７６Ｂが設けられている。しかしながら、本発明の実施の形態はこれに限らない。室外空気を加熱する手段は、１つであってもよい。 For example, in the case of the above-described embodiment, the first and second heaters 76A and 76B are provided as the heating means for heating the outdoor air. However, the embodiment of the present invention is not limited to this. There may be only one means for heating the outdoor air.

また、上述の実施の形態の場合、除湿運転は、室内湿度を低下させるために実行されるが、本発明の実施の形態はこれに限らない。例えば、冷房運転後に水滴がついた室内機の熱交換器を乾燥させるために、除湿運転が実行されてよい。この場合、除湿運転によって乾燥した室外空気が熱交換器に向かって吹き付けられるように、室内機が構成される。 Further, in the case of the above-described embodiment, the dehumidifying operation is performed to reduce the indoor humidity, but the embodiment of the present invention is not limited to this. For example, a dehumidifying operation may be performed to dry the heat exchanger of the indoor unit to which water droplets are attached after the cooling operation. In this case, the indoor unit is configured so that the outdoor air dried by the dehumidifying operation is blown toward the heat exchanger.

すなわち、本発明の実施の形態に係る空気調和機は、広義には、室内機と室外機とを備える空気調和機であって、前記室外機に設けられ、室外空気の水分を吸収する吸収材と、前記吸収材を通過し、室外と前記室内機内とを接続し、室外空気が流れる第１の流路と、前記第１の流路に前記室内機に向かう室外空気の流れを発生させる第１のファンと、前記第１の流路における前記吸収材に対する上流側で室外空気を加熱するヒータと、を有し、前記ヒータが室外空気を加熱し、加熱された室外空気が前記吸収材の水分を奪って前記室内機に向かう加湿運転と、前記ヒータが停止し、前記吸収材に水分を捕集されて乾燥した室外空気が前記室内機に向かう除湿運転と、を実行する。 That is, the air conditioner according to the embodiment of the present invention is, in a broad sense, an air conditioner including an indoor unit and an outdoor unit, which is provided in the outdoor unit and is an absorbent material that absorbs moisture in the outdoor air. A first flow path through which the outdoor air flows, and a first flow path that connects the outdoor side and the indoor unit, and the first flow path generates an outdoor air flow toward the indoor unit. It has a fan 1 and a heater that heats the outdoor air on the upstream side of the absorbent material in the first flow path. The heater heats the outdoor air, and the heated outdoor air is the absorbent material. A humidifying operation for depriving the indoor unit of water and a dehumidifying operation for the indoor unit where the heater is stopped and the dried outdoor air is collected by the absorbent material are executed.

本発明は、室内機と室外機を備える空気調和機であれば適用可能である。 The present invention is applicable as long as it is an air conditioner including an indoor unit and an outdoor unit.

２０ 室内機
５８ 吸収材
６６ 第１のファン
７６Ａ ヒータ（第１のヒータ）
７６Ｂ ヒータ（第２のヒータ）
Ｒ１ 第１の流路（流路）
Ｒ２ 第２の流路（流路） 20 Indoor unit 58 Absorbent material 66 First fan 76A Heater (first heater)
76B heater (second heater)
R1 first flow path (flow path)
R2 second flow path (flow path)

Claims (9)

室内機と室外機とを備える空気調和機であって、
前記室外機に設けられ、室外空気の水分を吸収する吸収材と、
前記吸収材を通過し、室外と前記室内機内とを接続し、室外空気が流れる第１の流路と、
前記第１の流路に前記室内機に向かう室外空気の流れを発生させる第１のファンと、
前記第１の流路における前記吸収材に対する上流側で室外空気を加熱するヒータと、を有し、
前記ヒータが室外空気を加熱し、加熱された室外空気が前記吸収材の水分を奪って前記室内機に向かう加湿運転と、前記ヒータが停止し、前記吸収材に水分を捕集されて乾燥した室外空気が前記室内機に向かう除湿運転と、を実行する、空気調和機。 An air conditioner equipped with an indoor unit and an outdoor unit.
An absorbent material provided in the outdoor unit that absorbs the moisture of the outdoor air,
A first flow path that passes through the absorbent material, connects the outside and the inside of the indoor unit, and allows outdoor air to flow.
A first fan that generates an outdoor air flow toward the indoor unit in the first flow path,
It has a heater that heats the outdoor air on the upstream side of the absorbent material in the first flow path.
The heater heats the outdoor air, and the heated outdoor air deprives the absorbent material of water and heads for the indoor unit, and the heater is stopped, and the water is collected by the absorbent material and dried. An air conditioner that performs a dehumidifying operation in which the outdoor air is directed toward the indoor unit. 前記加湿運転または前記除湿運転をユーザが選択するためのコントローラを、さらに有し、
前記コントローラを介してユーザによって選択された前記加湿運転または前記除湿運転が実行される、請求項１に記載の空気調和機。 Further having a controller for the user to select the humidifying operation or the dehumidifying operation.
The air conditioner according to claim 1, wherein the humidifying operation or the dehumidifying operation selected by the user is performed via the controller. 室内湿度をユーザが設定するためのコントローラと、
前記室内機に設けられ、室内湿度を測定する室内湿度センサと、をさらに有し、
前記室内湿度センサによって検出される室内湿度が前記コントローラを介して設定された室内湿度になるように、前記加湿運転と前記除湿運転が選択的に実行される、請求項１に記載の空気調和機。 A controller for the user to set the indoor humidity, and
It further has an indoor humidity sensor, which is provided in the indoor unit and measures the indoor humidity.
The air conditioner according to claim 1, wherein the humidifying operation and the dehumidifying operation are selectively executed so that the indoor humidity detected by the indoor humidity sensor becomes the indoor humidity set via the controller. .. 前記第１の流路が、前記室内機と室外とに向かって分岐し、
前記第１の流路を流れる室外空気を前記室内機または室外に振り分けるダンパ装置を、さらに有し、
前記除湿運転が、前記ダンパ装置が室外空気を前記室内機に振り向けることによって実行され、
前記ヒータが室外空気を加熱し且つ前記ダンパ装置が室外空気を室外に振り向けることによって前記吸収材を加熱された室外空気によって乾燥させる再生運転が実行される、請求項１から３のいずれか一項に記載の空気調和機。 The first flow path branches toward the indoor unit and the outdoor unit,
Further having a damper device for distributing the outdoor air flowing through the first flow path to the indoor unit or the outdoor unit.
The dehumidifying operation is performed by the damper device directing outdoor air to the indoor unit.
Any one of claims 1 to 3, wherein the heater heats the outdoor air and the damper device directs the outdoor air to the outside to dry the absorbent material with the heated outdoor air. The air conditioner described in the section. 前記除湿運転と前記再生運転とが、交互に実行される、請求項４に記載の空気調和機。 The air conditioner according to claim 4, wherein the dehumidifying operation and the regenerating operation are alternately performed. 前記吸収材を通過し、室外空気が室外から室外に流れる第２の流路と、
前記第２の流路に室外空気の流れを発生させる第２のファンと、をさらに有し、
前記加湿運転中は、前記第２のファンが作動し、
前記除湿運転中は、前記第２のファンが停止する、請求項１から５のいずれか一項に記載の空気調和機。 A second flow path through which the absorbent material is passed and outdoor air flows from the outside to the outside,
Further having a second fan for generating an outdoor air flow in the second flow path,
During the humidification operation, the second fan operates and
The air conditioner according to any one of claims 1 to 5, wherein the second fan is stopped during the dehumidifying operation. 前記ヒータが、ＰＴＣヒータである、請求項１から６のいずれか一項に記載の空気調和機。 The air conditioner according to any one of claims 1 to 6, wherein the heater is a PTC heater. 前記吸収材が、高分子収着材である、請求項１から７のいずれか一項に記載の空気調和機。 The air conditioner according to any one of claims 1 to 7, wherein the absorbent material is a polymer sorbent. 前記第１の流路が、室外空気が通過するラビリンスを含んでいる、請求項１から８のいずれか一項に記載の空気調和機。 The air conditioner according to any one of claims 1 to 8, wherein the first flow path includes a labyrinth through which outdoor air passes.
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