JP2017146038A

JP2017146038A - Radiant air-conditioning system and radiant heating and cooling method

Info

Publication number: JP2017146038A
Application number: JP2016028791A
Authority: JP
Inventors: 勇輝滝澤; Yuki Takizawa; 幹治小野; Kanji Ono
Original assignee: Fujita Corp
Current assignee: Fujita Corp
Priority date: 2016-02-18
Filing date: 2016-02-18
Publication date: 2017-08-24
Anticipated expiration: 2036-02-18
Also published as: JP6675217B2

Abstract

PROBLEM TO BE SOLVED: To provide a radiant air-conditioning system capable of preventing dew formation at a ceiling and the like, performing an appropriate control over humidity in a living room space and improving amenity there.SOLUTION: This invention comprises: a tightly-sealed ceiling space S2 defined at an upper side of a living room space S1 through a ceiling material 2; a ceiling air-conditioning machine 3 for sucking air in the ceiling space S2 to supply the conditioned air to the ceiling space S2; a living room air-conditioning machine 4 for taking air in the living room space S1 and supplying the conditioned air to the living room space S1; living-room humidity detecting means 63 for detecting humidity in the living room space S1; and calculation controlling means 6A for turning ON or increasing an output of the ceiling air-conditioning machine 3 and also for turning OFF or decreasing an output of the living room air-conditioning machine 4 when either humidity in the living room detected by the living room humidity detecting means 63 during cooling operation or a dew point temperature calculated on the basis of this humidity is lower than a set value and at the same time, for turning OFF or decreasing an output of the ceiling air-conditioning machine 3 when the temperature is more than the set value and also turning ON or increasing an output of the living room air-conditioning machine 4.SELECTED DRAWING: Figure 1

Description

本発明は、天井面からの放射によって居室空間の空調を行う放射空調システム及び放射冷暖房方法に関する。 The present invention relates to a radiant air conditioning system and a radiant cooling and heating method for air conditioning a living room space by radiation from a ceiling surface.

病院内の病室、透析室、診察室や、福祉施設内の居住室、宿泊施設の居住室等のように、気流を嫌う室内やヒトが長時間仰臥位になる室内は、可及的に温湿度環境を快適にすることが求められている。しかしながら、従来の空調システムは、室内に空調空気を噴き出す噴流式のものが主流であるため、室内に顕著な気流が発生し、その気流が人体に直接当たることで不快感を生じる。また、温度による空気の比重差に起因して、冷気は下に暖気は上に移動して鉛直温度分布が発生するので、不快な頭熱足寒の環境となりやすい。そこで近年、天井面から室内空間へ熱を放射することによって、不快な気流や室内鉛直温度分布を発生しにくくした放射空調システムが注目されている。 Indoors where people do not like airflow or where humans are supine for long periods of time, such as hospital rooms, dialysis rooms, examination rooms, welfare rooms, and accommodation rooms, are as warm as possible. There is a need to make the humidity environment comfortable. However, since the conventional air-conditioning system is mainly a jet type that ejects conditioned air into the room, a significant air flow is generated in the room, and the air flow directly hits the human body, resulting in discomfort. Further, due to the difference in specific gravity of air depending on the temperature, the cold air moves downward and the warm air moves upward to generate a vertical temperature distribution. Therefore, in recent years, attention has been paid to a radiation air conditioning system that makes it difficult to generate unpleasant airflow and indoor vertical temperature distribution by radiating heat from the ceiling surface to the indoor space.

図４は、この種の放射空調システムの従来技術の一例を示すものである。すなわち図４に示す放射空調システムは、単位面積あたりの熱抵抗が０.０１ｍ^２・Ｋ／Ｗ以上０.４ｍ^２・Ｋ／Ｗ以下の天井材１０１を用い、この天井材１０１の裏側に上部及び側部が断熱材１０２によって適切に断熱され密閉された天井裏空間１０４を形成して、この天井裏空間１０４に空調機１０３からの冷却空気又は加温空気を供給し、天井材１０１からの放射により居室空間１０５の冷暖房を行うものである（下記の特許文献１参照）。 FIG. 4 shows an example of the prior art of this type of radiant air conditioning system. That is, the radiant air-conditioning system shown in FIG. 4 uses a ceiling material 101 having a thermal resistance per unit area of 0.01 m ² · K / W or more and 0.4 m ² · K / W or less. And a ceiling back space 104 that is appropriately insulated and sealed by a heat insulating material 102, and is supplied with cooling air or warming air from the air conditioner 103 to the ceiling back space 104. The living room space 105 is cooled and heated by radiation (see Patent Document 1 below).

特開平５−１４９５８６号公報JP-A-5-149586

しかしながら、上記従来技術による放射空調システムによれば、天井材１０１に透湿性に優れた材質のものを用いることで、夏季の冷房時に、居室空間１０５の水蒸気を天井裏空間１０４へ通過させ、天井裏空間１０４内の空調機１０３によって凝縮してドレン水として除去することで潜熱処理を行っているが、居室空間１０５を対流式空調機で直接空調する場合に比較して潜熱処理能力が低くなるため、湿度の高い空気が居室空間１０５に流入する可能性が高い場合、天井裏空間１０４の冷却空気によって冷却された天井材１０１の下面に結露が発生する懸念がある。 However, according to the radiant air-conditioning system according to the above-described prior art, the ceiling material 101 is made of a material having excellent moisture permeability, so that the water vapor in the room space 105 passes through the ceiling back space 104 during the cooling in summer, and the ceiling material 101 Although the latent heat treatment is performed by condensing by the air conditioner 103 in the back space 104 and removing it as drain water, the latent heat treatment ability is lower than when the living room space 105 is directly air-conditioned by the convection air conditioner. Therefore, when there is a high possibility that high-humidity air flows into the living room space 105, there is a concern that dew condensation occurs on the lower surface of the ceiling material 101 cooled by the cooling air in the ceiling back space 104.

本発明は、以上のような点に鑑みてなされたものであって、その技術的課題は、天井等への結露を防止し、居室空間の湿度を適切に制御して快適性を向上させることの可能な放射空調システム及び放射冷暖房方法を提供することにある。 The present invention has been made in view of the above points, and its technical problem is to prevent condensation on the ceiling or the like and to appropriately control the humidity of the living room space to improve comfort. It is an object of the present invention to provide a radiant air conditioning system and a radiant cooling and heating method.

上述した技術的課題を有効に解決するための手段として、請求項１の発明に係る放射空調システムは、居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機と、前記居室空間の空気を取り込んで空調空気を前記居室空間へ供給する居室空調機と、前記居室空間の湿度を検出する居室湿度検出手段と、冷房時に前記居室湿度検出手段により検出される居室の湿度又はこの湿度に基づいて算出される露点温度が設定値より低い場合に前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させると共に前記居室空調機の出力をＯＮ又は増大させるように制御する演算制御手段と、を備えるものである。なお、ここでいう居室の湿度とは、絶対湿度又は相対湿度のことである。 As a means for effectively solving the technical problem described above, the radiant air conditioning system according to the invention of claim 1 is characterized in that the air in the ceiling back space defined in a sealed manner via a ceiling material is provided above the living room space. A ceiling air conditioner that takes in and supplies conditioned air to the ceiling space, a room air conditioner that takes in air in the room space and supplies air conditioned air to the room space, and a room humidity that detects the humidity of the room space When the room humidity detected by the room humidity detecting means during cooling or the dew point temperature calculated based on the humidity is lower than a set value, the output of the ceiling air conditioner is turned on or increased and The output of the room air conditioner is turned off or reduced, and if it is higher than the set value, the output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased. And operation control means for, those equipped with. In addition, the humidity of a living room here is absolute humidity or relative humidity.

請求項２の発明に係る放射空調システムは、居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機と、前記居室空間の空気を取り込んで空調空気を前記居室空間へ供給する居室空調機と、前記居室空間の湿度を検出する居室湿度検出手段と、前記居室空間の温度を検出する居室温度検出手段と、前記天井裏空間から前記天井裏空調機への吸込温度を検出する吸込温度検出手段と、冷房時において、前記居室湿度検出手段により検出される前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させると共に前記居室空調機の出力をＯＮ又は増大させ、前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より低く、かつ前記居室温度検出手段により検出される居室温度及び前記吸込温度検出手段により検出される吸込温度がそれぞれ設定値より高い、といった条件を満足する場合に、前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、前記条件を満足しない場合に、前記天井裏空調機と前記居室空調機の出力をＯＦＦ又は減少させるように制御する演算制御手段と、を備えるものである。 A radiant air-conditioning system according to the invention of claim 2 is a ceiling-side air conditioning system that takes in air in a ceiling back space defined in a sealed manner above a living room space via a ceiling material and supplies the air-conditioned air to the ceiling back space. A room air conditioner that takes in the air in the room space and supplies conditioned air to the room space, a room humidity detection means that detects the humidity of the room space, and a room temperature detection that detects the temperature of the room space Means, a suction temperature detection means for detecting the suction temperature from the ceiling space to the ceiling air conditioner, and the humidity of the room space detected by the room humidity detection means during cooling or the humidity calculated from the humidity. When the dew point temperature is higher than the set value, the output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased, and the humidity of the room space or the humidity is calculated. When the dew point temperature is lower than a set value and the conditions that the room temperature detected by the room temperature detection means and the suction temperature detected by the suction temperature detection means are higher than the set value, respectively, When the output of the ceiling air conditioner is turned on or increased and the output of the living room air conditioner is turned off or reduced, and when the conditions are not satisfied, the outputs of the ceiling air conditioner and the living room air conditioner are turned off or reduced. And an arithmetic control means for controlling the operation.

請求項３の発明に係る放射空調システムは、請求項１又は２に記載された構成において、居室空調用居室温度検出手段を備え、演算制御手段は、前記居室空調用居室温度検出手段で検出される居室温度が、設定値より高い場合に天井裏空調機の出力をＯＦＦ又は減少させると共に居室空調機の出力をＯＮ又は増大させ、前記設定値よりも低い場合に前記天井裏空調機及び前記居室空調機の出力をＯＦＦ又は減少させるように制御するものである。 According to a third aspect of the present invention, there is provided a radiation air-conditioning system according to the first or second aspect, further comprising room temperature detecting means for room air conditioning, wherein the arithmetic control means is detected by the room temperature detecting means for room air conditioning. When the room temperature is higher than the set value, the output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased. When the room temperature is lower than the set value, the ceiling air conditioner and the room It controls to turn off or decrease the output of the air conditioner.

請求項４の発明に係る放射空調システムは、請求項１又は２に記載された構成において、居室空調用居室温度検出手段と、居室空調用演算制御手段とを備え、前記居室空調用演算制御手段は、前記居室空調用居室温度検出手段で検出される居室温度が、設定値よりも高い場合に天井裏空調機の出力をＯＦＦ又は減少させると共に居室空調機の出力をＯＮ又は増大させ、前記設定値よりも低い場合に前記天井裏空調機及び前記居室空調機の出力をＯＦＦ又は減少させるように制御するものである。 A radiation air conditioning system according to a fourth aspect of the present invention is the configuration described in the first or second aspect, further comprising: room temperature detecting means for room air conditioning; and operation control means for room air conditioning; When the room temperature detected by the room temperature detecting means for the room air conditioning is higher than a set value, the output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased to When the value is lower than the value, the output of the ceiling air conditioner and the room air conditioner is controlled to be turned off or reduced.

請求項５の発明に係る放射空調システムは、請求項１〜４のいずれかに記載された構成において、居室湿度検出手段が、天井材の下面の結露による濡れの有無を検出する結露センサからなるものである。 A radiation air conditioning system according to a fifth aspect of the present invention is the configuration according to any one of the first to fourth aspects, wherein the room humidity detecting means comprises a dew condensation sensor that detects the presence or absence of wetting due to dew condensation on the lower surface of the ceiling material. Is.

請求項６の発明に係る放射空調システムは、請求項１〜５のいずれかに記載された構成において、天井裏空調機及び居室空調機が、共通の室外機を有するものである。 The radiant air-conditioning system according to the invention of claim 6 is the configuration according to any one of claims 1 to 5, wherein the ceiling air conditioner and the room air conditioner have a common outdoor unit.

請求項７の発明に係る放射冷暖房方法は、居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機により前記天井材を冷却又は加温して、前記天井材からの放射により前記居室空間の冷暖房を行う放射冷暖房方法において、居室空調機によって前記居室空間への空調空気の供給を可能とし、冷房時に、前記居室空間の湿度又はこの湿度に基づいて算出される露点温度が設定値より低い場合に前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させるものである。 The radiant cooling and heating method according to the invention of claim 7 is a ceiling back air conditioning system that takes in air in a ceiling back space defined in a sealed manner via a ceiling material above the living room space and supplies conditioned air to the ceiling back space. In a radiant cooling and heating method in which the ceiling material is cooled or heated by a machine and the room space is cooled and heated by radiation from the ceiling material, the room air conditioner can supply conditioned air to the room space, Sometimes, when the humidity of the room space or the dew point temperature calculated based on the humidity is lower than a set value, the output of the ceiling air conditioner is turned on or increased and the output of the room air conditioner is turned off or reduced, When it is higher than the set value, the output of the ceiling air conditioner is turned off or reduced.

請求項８の発明に係る放射冷暖房方法は、居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機により前記天井材を冷却又は加温して、前記天井材からの放射により前記居室空間の冷暖房を行う放射冷暖房方法において、居室空調機によって前記居室空間への空調空気の供給を可能とし、冷房時に、前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させると共に前記居室空調機の出力をＯＮ又は増大させ、前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より低く、かつ居室温度及び前記天井裏空調機への吸込温度がそれぞれ設定値より高い、といった条件を満足する場合に、前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、前記条件を満足しない場合に、前記天井裏空調機と前記居室空調機の出力をＯＦＦ又は減少させるものである。 The radiant cooling and heating method according to the invention of claim 8 is a ceiling back air conditioning system that takes in air in a ceiling back space defined in a sealed manner via a ceiling material above the living room space and supplies conditioned air to the ceiling back space. In a radiant cooling and heating method in which the ceiling material is cooled or heated by a machine and the room space is cooled and heated by radiation from the ceiling material, the room air conditioner can supply conditioned air to the room space, Sometimes, when the humidity of the room space or the dew point temperature calculated from this humidity is higher than a set value, the output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased, Satisfies the conditions that the humidity of the space or the dew point temperature calculated from this humidity is lower than the set value, and that the room temperature and the suction temperature to the ceiling air conditioner are higher than the set value, respectively. In this case, the output of the ceiling air conditioner is turned on or increased and the output of the room air conditioner is turned off or reduced. If the above condition is not satisfied, the outputs of the ceiling air conditioner and the room air conditioner are turned off. Or to decrease.

請求項９の発明に係る放射冷暖房方法は、請求項７又は８に記載の方法において、冷房時に、居室温度が、設定値よりも高い場合に天井裏空調機の出力をＯＦＦ又は減少させると共に居室空調機の出力をＯＮ又は増大させるように制御し、前記設定値よりも低い場合に前記天井裏空調機及び前記居室空調機の出力をＯＦＦ又は減少させるものである。 The method of radiant cooling and heating according to the invention of claim 9 is the method according to claim 7 or 8, wherein, during cooling, when the room temperature is higher than a set value, the output of the ceiling air conditioner is turned OFF or reduced and the room is Control is performed so that the output of the air conditioner is turned on or increased, and when the output is lower than the set value, the outputs of the ceiling air conditioner and the room air conditioner are turned off or decreased.

本発明に係る放射空調システムによれば、放射空調のために天井裏空間に配置した天井裏空調機による居室空間の潜熱処理力の低下を、居室空間に設けた居室空調機によって補償するため、天井等への結露を防止し、居室空間の湿度を適切に制御して快適性を向上させることができる。 According to the radiant air conditioning system according to the present invention, in order to compensate for the decrease in latent heat treatment power of the room space by the ceiling air conditioner disposed in the ceiling space for radiation air conditioning by the room air conditioner provided in the room space, Condensation on the ceiling or the like can be prevented, and the humidity in the living room space can be appropriately controlled to improve comfort.

本発明に係る放射空調システムの好ましい実施の形態の構成を概略的に示す縦断面図である。It is a longitudinal section showing roughly composition of a desirable embodiment of a radiation air-conditioning system concerning the present invention. 本発明に係る放射空調システムの好ましい実施の形態による暖房運転時の動作を示すフローチャートである。It is a flowchart which shows the operation | movement at the time of the heating operation by preferable embodiment of the radiation | air-conditioning system which concerns on this invention. 本発明に係る放射空調システムの好ましい実施の形態による冷房運転時の動作を示すフローチャートである。It is a flowchart which shows the operation | movement at the time of air_conditionaing | cooling operation by preferable embodiment of the radiation | air-conditioning system which concerns on this invention. 従来技術に係る放射空調システムの一例を概略的に示す平面図である。It is a top view which shows roughly an example of the radiation air conditioning system which concerns on a prior art.

以下、本発明に係る放射空調システムの好ましい実施の形態について、図面を参照しながら説明する。 Hereinafter, preferred embodiments of a radiation air conditioning system according to the present invention will be described with reference to the drawings.

図１において、参照符号１は鉄骨・鉄筋コンクリート造の建築物の躯体であって、１１は躯体スラブ、１２は躯体側壁である。躯体スラブ１１の下側には吊りボルトや格子状に組まれた天井下地材（不図示）などを介して天井材２が取り付けられており、この天井材２によって、上下の躯体スラブ１１，１１間に居室空間Ｓ１と密閉状の天井裏空間Ｓ２が画成されている。また、この天井裏空間Ｓ２を取り囲む躯体スラブ１１の下面及び躯体側壁１２の内側面は、断熱材１３で覆われている。 In FIG. 1, reference numeral 1 is a frame of a steel frame / reinforced concrete building, 11 is a frame slab, and 12 is a frame side wall. A ceiling material 2 is attached to the lower side of the frame slab 11 via suspension bolts or a ceiling base material (not shown) assembled in a lattice shape, and the upper and lower frame slabs 11, 11 are attached by the ceiling material 2. A living room space S1 and a sealed ceiling space S2 are defined in between. Further, the lower surface of the housing slab 11 surrounding the ceiling space S <b> 2 and the inner surface of the housing side wall 12 are covered with a heat insulating material 13.

天井材２は、水蒸気の通過を許容する透湿性及び水蒸気を吸収する吸湿性に優れた多孔質材料からなるものであって、例えば石膏ボードからなるものが好適に用いられる。 The ceiling material 2 is made of a porous material excellent in moisture permeability that allows passage of water vapor and moisture absorption that absorbs water vapor. For example, a material made of gypsum board is preferably used.

参照符号３は天井裏空間Ｓ２内に設置されたビルトイン型の天井裏空調機で、室外機５との間で流体を液相−気相の可逆変化を伴いながら循環させることにより熱の搬送を行い、これによって、天井裏空間Ｓ２から取り込んだ空気を前記流体が液相から気相へ相変化する際の潜熱吸収作用により冷却して噴き出し、あるいは前記流体が気相から液相へ相変化する際の潜熱放出作用により加温して噴き出し、これによって天井裏空間Ｓ２を冷房又は暖房するものである。また、この天井裏空調機３からは空調空気（冷房空気又は暖房空気）を吐出する複数のダクト３１が分岐して延びており、各ダクト３１の噴き出し口は下向きに開口し、すなわち天井材２の上面（裏面）と対向した状態で開口している。また好ましくは、ダクト３１の噴き出し口は、居室空間Ｓ１における例えば人体による熱負荷が大きいエリアの真上に位置するように開口される。 Reference numeral 3 denotes a built-in type ceiling air conditioner installed in the ceiling space S2, which conveys heat between the outdoor unit 5 by circulating a fluid with a reversible change of liquid phase to gas phase. In this way, the air taken in from the ceiling space S2 is cooled and ejected by the latent heat absorption action when the fluid changes phase from the liquid phase to the gas phase, or the fluid changes phase from the gas phase to the liquid phase. It is heated and blown out by the latent heat release action at that time, and thereby the ceiling space S2 is cooled or heated. Further, a plurality of ducts 31 for discharging conditioned air (cooling air or heating air) are branched and extended from the ceiling air conditioner 3, and the outlets of the ducts 31 are opened downward, that is, the ceiling material 2. It opens in the state facing the upper surface (back surface). Preferably, the outlet of the duct 31 is opened so as to be located immediately above an area in the living room space S1 where, for example, a human body has a large thermal load.

参照符号４は居室空調機で、天井裏空調機３が接続された室外機５を共通の熱源とし、この室外機５との間で流体を液相−気相の可逆変化を伴いながら循環させることにより熱の搬送を行い、これによって、居室空間Ｓ１から取り込んだ空気を前記流体が液相から気相へ相変化する際の潜熱吸収作用により冷却して噴き出し、あるいは前記流体が気相から液相へ相変化する際の潜熱放出作用により加温して噴き出す対流式空調機である。この居室空調機４は天井カセット型のものを採用することができる。 Reference numeral 4 denotes a room air conditioner. The outdoor unit 5 to which the ceiling air conditioner 3 is connected is used as a common heat source, and the fluid is circulated between the outdoor unit 5 with a reversible change between the liquid phase and the gas phase. Thus, heat is transferred, whereby the air taken in from the living room space S1 is cooled and ejected by a latent heat absorption action when the fluid undergoes a phase change from the liquid phase to the gas phase, or the fluid is transferred from the gas phase to the liquid phase. It is a convection type air conditioner that heats and jets out by the latent heat release action when the phase changes. This room air conditioner 4 can employ a ceiling cassette type.

参照符号６１は、居室空間Ｓ１の空気の温度（以下、居室温度という）を検出する居室温度センサであって、請求項２に記載された居室温度検出手段に相当するものであり、例えば天井裏空調機３及び居室空調機４を遠隔操作するための不図示のリモコン装置などに内蔵されるか、あるいは躯体側壁１２などの任意の箇所に取り付けられる。 Reference numeral 61 is a room temperature sensor that detects the temperature of the air in the room space S1 (hereinafter referred to as the room temperature), and corresponds to the room temperature detecting means according to claim 2, for example, the ceiling The air conditioner 3 and the living room air conditioner 4 are incorporated in a remote control device (not shown) for remotely controlling the air conditioner 3 or the room air conditioner 4 or attached to an arbitrary location such as the housing side wall 12.

参照符号６２は、天井裏空間Ｓ２から天井裏空調機３へ吸込まれる空気の温度（以下、吸込温度という）を検出する吸込温度センサであって、請求項２に記載された吸込温度検出手段に相当するものであり、例えば天井裏空調機３における不図示の吸込口に取り付けられている。 Reference numeral 62 is a suction temperature sensor for detecting the temperature of air sucked into the ceiling air conditioner 3 from the ceiling space S2 (hereinafter referred to as suction temperature), and the suction temperature detecting means according to claim 2 For example, it is attached to a suction port (not shown) in the ceiling back air conditioner 3.

参照符号６３は、居室空間Ｓ１の空気の絶対湿度（水蒸気の含有率）を検出する絶対湿度センサであって、請求項１に記載された居室湿度検出手段に相当するものであり、例えば天井裏空調機３及び居室空調機４を遠隔操作するための不図示のリモコン装置などに内蔵されるか、あるいは躯体側壁１２などの任意の箇所に取り付けられる。 Reference numeral 63 is an absolute humidity sensor that detects the absolute humidity (water vapor content) of the air in the living room space S1, and corresponds to the living room humidity detecting means according to claim 1, for example, the back of the ceiling The air conditioner 3 and the living room air conditioner 4 are incorporated in a remote control device (not shown) for remotely controlling the air conditioner 3 or the room air conditioner 4 or attached to an arbitrary location such as the housing side wall 12.

参照符号６Ａは、居室温度センサ６１により検出される居室温度のデータ、吸込温度センサ６２により検出される吸込温度のデータ、及び絶対湿度センサ６３により検出される居室内の湿度のデータを取り込んで天井裏空調機３、居室空調機４及び室外機５の駆動を制御するコントローラであって、請求項１に記載された演算制御手段に相当するものである。 Reference numeral 6 </ b> A captures the room temperature data detected by the room temperature sensor 61, the suction temperature data detected by the suction temperature sensor 62, and the humidity data detected by the absolute humidity sensor 63. A controller for controlling the driving of the back air conditioner 3, the living room air conditioner 4, and the outdoor unit 5, and corresponds to the arithmetic control means described in claim 1.

詳しくは、コントローラ６Ａは、制御プログラムや設定値を保存するメモリ６４と、不図示のリモコン装置によって設定値を変更可能とする入力部６５を備え、居室温度センサ６１により検出される居室温度データと絶対湿度センサ６３により検出される居室内の湿度データから相対湿度を算出し、算出された相対湿度データ、吸込温度センサ６２からの吸込温度データ、居室温度センサ６１からの居室温度データと、あらかじめ設定されメモリ６４に記憶された相対湿度の設定値、吸込温度の設定値、居室温度の設定値との差に基づいて制御信号を出力するものである。なお、暖房時の天井裏空調機３の吸込設定温度は、例えば２５〜３５℃程度、居室設定温度は、例えば２０〜２８℃程度で変更可能とされ、冷房時の天井裏空調機３の吸込設定温度は、例えば１５〜２０℃程度、居室設定温度は、例えば２０〜２８℃程度で変更可能とされる。また、相対湿度の設定値の範囲は、例えば６０〜８５％程度とすることが好ましい。 Specifically, the controller 6A includes a memory 64 that stores a control program and setting values, and an input unit 65 that can change the setting values using a remote controller (not shown), and the room temperature data detected by the room temperature sensor 61. The relative humidity is calculated from the humidity data detected by the absolute humidity sensor 63, the calculated relative humidity data, the suction temperature data from the suction temperature sensor 62, and the room temperature data from the room temperature sensor 61 are set in advance. The control signal is output based on the difference between the relative humidity setting value, the suction temperature setting value, and the room temperature setting value stored in the memory 64. In addition, the suction set temperature of the ceiling air conditioner 3 at the time of heating can be changed, for example, by about 25 to 35 ° C., and the room set temperature can be changed by, for example, about 20 to 28 ° C. The set temperature can be changed, for example, at about 15 to 20 ° C., and the room set temperature can be changed, for example, at about 20 to 28 ° C. Moreover, it is preferable that the range of the set value of relative humidity shall be about 60 to 85%, for example.

参照符号６６は、居室温度を検出する居室空調用居室温度センサであって、請求項３に記載された居室空調用居室温度検出手段に相当するものであり、例えば躯体側壁１２などの任意の箇所に取り付けられる。 Reference numeral 66 is a room temperature sensor for room air conditioning that detects the room temperature, and corresponds to the room temperature detection means for room air conditioning described in claim 3, for example, an arbitrary location such as the housing side wall 12. Attached to.

参照符号６Ｂは、居室空調用居室温度センサ６６により検出される第二の居室温度のデータを取り込んで居室空調機４の駆動を優先的に制御する居室空調用コントローラであって、請求項４に記載の居室空調用演算制御手段に相当するものである。 Reference numeral 6B is a room air-conditioning controller that takes in the data of the second room temperature detected by the room temperature sensor 66 for room air-conditioning and preferentially controls the driving of the room air-conditioning machine 4. This corresponds to the calculation control means for room air conditioning described.

詳しくは、居室空調用コントローラ６Ｂは、制御プログラムや設定値を保存するメモリ６７と、不図示のリモコン装置によって設定値を変更可能とする入力部６８を備え、居室空調用居室温度センサ６６により検出される第二の居室温度データと、あらかじめ設定されメモリ６７に記憶された第二の居室温度の設定値との差に基づいて制御信号を出力するものである。 Specifically, the room air-conditioning controller 6B includes a memory 67 for storing a control program and setting values, and an input unit 68 that can change the setting values by a remote controller (not shown), and is detected by a room temperature sensor 66 for room air-conditioning. The control signal is output based on the difference between the second room temperature data to be set and the set value of the second room temperature set in advance and stored in the memory 67.

以上のように構成された実施の形態の放射空調システムによれば、冬季の暖房においては、例えば居室空間Ｓ１の在室者が不図示のリモコン装置を操作することによって暖房運転を開始すると、天井裏空調機３及び室外機５の駆動によって、天井裏空間Ｓ２の空気が天井裏空調機３へ取り込まれて加温され、その加温空気がダクト３１を介して天井裏空間Ｓ２へ噴き出されるので、これによって天井裏空間Ｓ２内が暖房される。そして、天井裏空間Ｓ２を取り囲む躯体スラブ１１の下面及び躯体側壁１２の内側面は、断熱材１３で覆われているため、天井裏空間Ｓ２の空気の加温が効率良く行われる。 According to the radiant air-conditioning system of the embodiment configured as described above, in heating in winter, for example, when a person in the living room space S1 starts a heating operation by operating a remote controller (not shown), the ceiling By driving the back air conditioner 3 and the outdoor unit 5, the air in the ceiling back space S2 is taken into the ceiling back air conditioner 3 and heated, and the heated air is blown out through the duct 31 to the ceiling back space S2. Thus, the interior of the ceiling space S2 is heated by this. And since the lower surface of the housing slab 11 surrounding the ceiling back space S2 and the inner surface of the housing side wall 12 are covered with the heat insulating material 13, the air in the ceiling back space S2 is efficiently heated.

ここで、ダクト３１の噴き出し口から噴き出された加温空気は、周りの空気に比較して比重が小さいために浮力を受けて上昇しようとするが、噴き出し口は下向きに開口されているため、天井材２の上面に強制的に噴き付けられる。このため、天井裏空間Ｓ２の上層部と上階側の躯体スラブ１１との間での対流熱伝達率よりも天井裏空間Ｓ２の下層部と天井材２との間での対流熱伝達率が大きくなって、この天井材２との熱交換が効率良く行われるので、上階への放熱ロスが抑制されると共に、天井材２から居室空間Ｓ１への放射暖房が効率良く行われ、居室空間Ｓ１の放射暖房の立ち上がりの応答性が早いものとなる。 Here, the heated air blown from the blowout opening of the duct 31 tends to rise due to buoyancy because the specific gravity is smaller than the surrounding air, but the blowout opening is opened downward. Then, it is forcibly sprayed on the upper surface of the ceiling material 2. For this reason, the convective heat transfer coefficient between the lower layer part of the ceiling back space S2 and the ceiling material 2 is higher than the convective heat transfer coefficient between the upper layer part of the ceiling back space S2 and the housing slab 11 on the upper floor side. Since it becomes large and heat exchange with the ceiling material 2 is performed efficiently, heat dissipation loss to the upper floor is suppressed, and radiant heating from the ceiling material 2 to the living room space S1 is efficiently performed. The response of the rising of the radiant heating at S1 is fast.

図２は暖房運転時におけるコントローラ６Ａの制御動作を示すものである。すなわち暖房においては、まず天井裏空調機３の暖房運転がＯＮになると（処理ステップＳ１０１）、居室温度センサ６１により検出される居室温度が、予め入力部６５を介して設定された居室温度の設定値（以下、居室設定温度という）より低いかを判定し（処理ステップＳ１０２）、居室温度が居室設定温度より低いと判定された場合は（処理ステップＳ１０２＝ＹＥＳ）、さらに、吸込温度センサ６２により検出される吸込温度が、予め入力部６５を介して設定された吸込温度の設定値（以下、吸込設定温度という）より低いかを判定し（処理ステップＳ１０３）、吸込温度が吸込設定温度より低いと判定された場合は（処理ステップＳ１０３＝ＹＥＳ）、処理はステップＳ１０１へリターンして天井裏空調機３の暖房運転が継続される。このため、暖房運転によって、吸込設定温度に対する吸込温度の差及び居室設定温度に対する居室温度の差が次第に縮小される。 FIG. 2 shows the control operation of the controller 6A during the heating operation. That is, in heating, when the heating operation of the ceiling air conditioner 3 is first turned ON (processing step S101), the room temperature detected by the room temperature sensor 61 is set to the room temperature set in advance via the input unit 65. It is determined whether it is lower than a value (hereinafter referred to as room setting temperature) (processing step S102). If it is determined that the room temperature is lower than the room setting temperature (processing step S102 = YES), the suction temperature sensor 62 further It is determined whether the detected suction temperature is lower than a preset value of suction temperature (hereinafter referred to as suction set temperature) set in advance via the input unit 65 (processing step S103), and the suction temperature is lower than the suction set temperature. Is determined (processing step S103 = YES), the process returns to step S101 and the heating operation of the ceiling air conditioner 3 is continued. . For this reason, the heating operation gradually reduces the difference between the suction temperature with respect to the suction set temperature and the difference between the room temperature with respect to the room setting temperature.

一方、処理ステップＳ１０２において居室温度が居室設定温度まで上昇したと判定された場合（処理ステップＳ１０２＝ＮＯ）、及び処理ステップＳ１０３において吸込温度が吸込設定温度まで上昇したと判定された場合は（処理ステップＳ１０３＝ＮＯ）、天井裏空調機３の暖房運転をＯＦＦとする制御を行う（ステップＳ１０４）。 On the other hand, when it is determined in the processing step S102 that the room temperature has increased to the room setting temperature (processing step S102 = NO), and in the processing step S103, it is determined that the suction temperature has increased to the suction setting temperature (processing) In step S103 = NO), control is performed to turn off the heating operation of the ceiling air conditioner 3 (step S104).

そして次の処理ステップＳ１０５では、居室温度センサ６１により検出される居室温度が居室設定温度より低く、かつ吸込温度センサ６２により検出される吸込温度が吸込設定温度より低いかを判定し、居室温度及び吸込温度の双方がそれぞれの設定温度より低くなったと判定された場合は（処理ステップＳ１０５＝ＹＥＳ）、処理はステップＳ１０１へリターンして天井裏空調機３の暖房運転が再開され、居室温度及び吸込温度の少なくとも一方が設定温度の範囲にあると判定された場合は（処理ステップＳ１０５＝ＮＯ）、処理はステップＳ１０４へリターンして天井裏空調機３の停止状態が維持される。 In the next processing step S105, it is determined whether the room temperature detected by the room temperature sensor 61 is lower than the room set temperature and the suction temperature detected by the suction temperature sensor 62 is lower than the suction set temperature. When it is determined that both the suction temperatures are lower than the respective set temperatures (processing step S105 = YES), the process returns to step S101 and the heating operation of the ceiling air conditioner 3 is resumed, and the room temperature and the suction are resumed. When it is determined that at least one of the temperatures is within the set temperature range (processing step S105 = NO), the process returns to step S104 and the ceiling air conditioner 3 is maintained in the stopped state.

したがって、暖房運転時は、居室温度と吸込温度から、ａｎｄ条件で天井裏空調機３の暖房運転を制御するものであるため、天井裏空調機３のＯＮ・ＯＦＦの周期が短くなり、天井裏空調機３が極端に高温の空間に曝されることがなく、このため空調機メーカーから指定される使用可能温度範囲や連続運転可能範囲から外れてしまうのを防止することができる。しかも体感温度の変化の幅が小さくなって快適性を向上させることができる。 Accordingly, during the heating operation, the heating operation of the ceiling air conditioner 3 is controlled based on the room temperature and the suction temperature under the “and” condition. The air conditioner 3 is not exposed to an extremely high temperature space, and therefore, it is possible to prevent the air conditioner 3 from deviating from the usable temperature range or the continuous operation possible range specified by the air conditioner manufacturer. Moreover, the range of change in the temperature of sensation can be reduced and comfort can be improved.

次に、夏季の冷房においては、例えば居室空間Ｓ１の在室者が不図示のリモコン装置を操作することによって冷房運転を開始すると、天井裏空間Ｓ２の空気が天井裏空調機３へ取り込まれて冷却され、その冷却空気がダクト３１を介して天井裏空間Ｓ２へ噴き出され、これによって天井裏空間Ｓ２内が冷房される。天井裏空間Ｓ２を取り囲む躯体スラブ１１の下面及び躯体側壁１２の内側面は、断熱材１３で覆われているため、天井裏空間Ｓ２の空気の冷却が効率良く行われる。 Next, in cooling in summer, for example, when a occupant in the living room space S1 starts a cooling operation by operating a remote controller (not shown), the air in the ceiling space S2 is taken into the ceiling air conditioner 3. After being cooled, the cooling air is blown out to the ceiling back space S2 through the duct 31, whereby the inside of the ceiling back space S2 is cooled. Since the lower surface of the housing slab 11 surrounding the ceiling back space S2 and the inner surface of the housing side wall 12 are covered with the heat insulating material 13, the air in the ceiling back space S2 is efficiently cooled.

そして下向きに開口されたダクト３１の噴き出し口から噴き出された冷却空気が天井材２と接触することによって、この天井材２との熱交換が行われ、すなわち天井材２が冷却されるので、天井材２から居室空間Ｓ１への放射冷房が行われる。言い換えれば、居室空間Ｓ１の顕熱が天井材２から天井裏空間Ｓ２を介して天井裏空調機３に取り込まれ、そのヒートポンプ機能により室外機５を介して躯体１の外部へ放出される。そして上述のように、天井裏空間Ｓ２を取り囲む躯体スラブ１１の下面及び躯体側壁１２の内側面が断熱材１３で覆われていることによって天井裏空間Ｓ２の空気の冷却が効率良く行われるので、居室空間Ｓ１の放射冷房の立ち上がりの応答性が早いものとなる。 And since the cooling air blown out from the blowout opening of the duct 31 opened downward contacts the ceiling member 2, heat exchange with the ceiling member 2 is performed, that is, the ceiling member 2 is cooled. Radiant cooling from the ceiling material 2 to the living room space S1 is performed. In other words, the sensible heat of the living room space S1 is taken into the ceiling back air conditioner 3 from the ceiling material 2 through the ceiling back space S2, and is released to the outside of the housing 1 through the outdoor unit 5 by its heat pump function. And as mentioned above, since the lower surface of the housing slab 11 surrounding the ceiling space S2 and the inner surface of the housing side wall 12 are covered with the heat insulating material 13, the air in the ceiling space S2 is efficiently cooled. The responsiveness of the rising of the radiant cooling in the living room space S1 is fast.

一方、居室空間Ｓ１内の空気が有する潜熱は、空気中の水蒸気と共に、透湿性に優れた多孔質の天井材２を通過して天井裏空間Ｓ２へ浸入し、その一部は天井材２にも吸収される。そして、天井材２から天井裏空間Ｓ２内へ放湿された水蒸気は天井裏空調機３に取り込まれ、凝縮されてドレン水となって躯体１の外部へ排出される。またこのため、天井裏空間Ｓ２は相対湿度が低いものとなるので、居室空間Ｓ１から天井材２を介して天井裏空間Ｓ２へ水蒸気が取り込まれる。そしてこのような作用によって、居室空間Ｓ１内の顕熱負荷及び潜熱負荷が処理されるが、居室空間Ｓ１内の水蒸気は天井材２を通過しなければならないため、天井裏空調機３による潜熱処理量は、居室空間Ｓ１内の水蒸気を居室空調機４に直接取り込んで処理する場合に比較して低いものとなる。そこで、図示の実施の形態の放射空調システムでは、絶対湿度センサ６３により検出される居室空間Ｓ１内の湿度データに基づいて、天井裏空調機３と居室空調機４の駆動が切り替え制御されるようになっている。 On the other hand, the latent heat of the air in the living room space S1 passes through the porous ceiling material 2 excellent in moisture permeability together with the water vapor in the air and enters the ceiling back space S2, and part of the latent heat enters the ceiling material 2. Is also absorbed. The water vapor released from the ceiling material 2 into the ceiling space S2 is taken into the ceiling air conditioner 3 and condensed to be drained and discharged to the outside of the housing 1. For this reason, since the ceiling back space S2 has a low relative humidity, water vapor is taken into the ceiling back space S2 from the living room space S1 through the ceiling material 2. The sensible heat load and the latent heat load in the living room space S1 are processed by such an action, but since the water vapor in the living room space S1 must pass through the ceiling material 2, the latent heat treatment by the ceiling air conditioner 3 is performed. The amount is lower than when the water vapor in the room space S1 is directly taken into the room air conditioner 4 and processed. Therefore, in the radiation air conditioning system of the illustrated embodiment, the driving of the ceiling air conditioner 3 and the room air conditioner 4 is switched and controlled based on the humidity data in the room space S1 detected by the absolute humidity sensor 63. It has become.

図３は冷房運転時におけるコントローラ６Ａ及び居室空調用コントローラ６Ｂの制御動作を示すものである。すなわち冷房運転においては、まず天井裏空調機３をＯＮにすると共に居室空調機４をＯＦＦにする制御が行われる（処理ステップＳ２０１）。 FIG. 3 shows control operations of the controller 6A and the room air conditioning controller 6B during the cooling operation. That is, in the cooling operation, first, control is performed to turn on the ceiling air conditioner 3 and turn off the room air conditioner 4 (processing step S201).

そして、居室温度センサ６１により検出される居室温度データと絶対湿度センサ６３により検出される居室空間Ｓ１の湿度データから居室相対湿度を算出すると共に、この居室相対湿度が予め入力部６５を介して設定された居室設定相対湿度より低いかを判定し（処理ステップＳ２０２）、低い場合は（処理ステップＳ２０２＝ＹＥＳ）、さらに、居室温度センサ６１により検出される居室温度が、予め入力部６５を介して設定された第一の居室設定温度より高く、かつ吸込温度センサ６２により検出される天井裏空調機３の吸込温度が、予め入力部６５を介して設定された吸込温度の設定温度より高いかを判定し（処理ステップＳ２０３）、この条件を満足すると判定された場合は（処理ステップＳ２０３＝ＹＥＳ）、処理はステップＳ２０１へリターンして天井裏空調機３の冷房運転が継続される。このため、冷房運転によって、吸込設定温度に対する吸込温度の差及び居室設定温度に対する居室温度の差が次第に縮小される。また、処理ステップＳ２０３において条件を満足しない場合は（処理ステップＳ２０３＝ＮＯ）、天井裏空調機３及び居室空調機４の双方をＯＦＦにする制御を行い（処理ステップＳ２０４）、ステップＳ２０３へリターンする。 The room relative humidity is calculated from the room temperature data detected by the room temperature sensor 61 and the humidity data of the room space S1 detected by the absolute humidity sensor 63, and the room relative humidity is set in advance via the input unit 65. It is determined whether the relative humidity is lower than the set room relative humidity (processing step S202). If the relative humidity is lower (processing step S202 = YES), the room temperature detected by the room temperature sensor 61 is inputted via the input unit 65 in advance. Whether the suction temperature of the ceiling air conditioner 3 that is higher than the set first living room set temperature and detected by the suction temperature sensor 62 is higher than the preset temperature of the suction temperature set in advance via the input unit 65. If it is determined (processing step S203) and it is determined that this condition is satisfied (processing step S203 = YES), the process proceeds to step S2. The cooling operation of the ceiling air conditioner 3 is continued to return to 1. For this reason, the cooling operation gradually reduces the difference in the suction temperature with respect to the suction set temperature and the difference in the room temperature with respect to the room setting temperature. If the condition is not satisfied in process step S203 (process step S203 = NO), control is performed to turn off both the ceiling air conditioner 3 and the room air conditioner 4 (process step S204), and the process returns to step S203. .

一方、処理ステップＳ２０２において、例えば算出された居室相対湿度が居室設定相対湿度より高い場合は（処理ステップＳ２０２＝ＮＯ）、天井裏空調機３の冷房運転をＯＦＦにすると共に居室空調機４をＯＮ（除湿運転）にする制御を行い、すなわち居室空調機４によって居室空間Ｓ１の除湿を行う（処理ステップＳ２０５）。 On the other hand, in the processing step S202, for example, when the calculated room relative humidity is higher than the room setting relative humidity (processing step S202 = NO), the cooling operation of the ceiling air conditioner 3 is turned off and the room air conditioner 4 is turned on. Control (dehumidification operation) is performed, that is, the room space S1 is dehumidified by the room air conditioner 4 (processing step S205).

そして次の処理ステップＳ２０６では、居室温度センサ６１により検出される居室温度データと絶対湿度センサ６３により検出される居室空間Ｓ１の湿度データから算出された居室相対湿度が居室設定相対湿度より低いかを判定し、低いと判定された場合は（処理ステップＳ２０６＝ＹＥＳ）、処理はステップＳ２０１へリターンして天井裏空調機３をＯＮにすると共に居室空調機４をＯＦＦにするように運転が切り替わる。また、高いと判定された場合は（処理ステップＳ２０６＝ＮＯ）、次の処理ステップＳ２０７で、居室空調用居室温度センサ６６により検出される第二の居室温度データが第二の居室設定温度より高いかを判定し、高いと判定された場合は（処理ステップＳ２０７＝ＹＥＳ）、処理はステップＳ２０５へリターンして天井裏空調機３がＯＦＦ、居室空調機４がＯＮの状態を継続する。また、低いと判定された場合は（処理ステップＳ２０７＝ＮＯ）、次の処理ステップＳ２０８で、天井裏空調機３と居室空調機４を双方ともＯＦＦにするように運転が切り替わり、処理ステップＳ２０７へリターンする。 In the next processing step S206, it is determined whether the room relative humidity calculated from the room temperature data detected by the room temperature sensor 61 and the humidity data of the room space S1 detected by the absolute humidity sensor 63 is lower than the room set relative humidity. If it is determined that it is low (processing step S206 = YES), the process returns to step S201, and the operation is switched so that the ceiling air conditioner 3 is turned on and the room air conditioner 4 is turned off. If it is determined that the temperature is higher (processing step S206 = NO), the second room temperature data detected by the room air conditioning room temperature sensor 66 is higher than the second room setting temperature in the next processing step S207. If it is determined that it is high (processing step S207 = YES), the process returns to step S205, and the ceiling air conditioner 3 is turned off and the room air conditioner 4 is kept on. If it is determined that the value is low (processing step S207 = NO), in the next processing step S208, the operation is switched so that both the ceiling air conditioner 3 and the room air conditioner 4 are turned off, and the process proceeds to processing step S207. Return.

したがって、冷房時は、居室温度、吸込温度、及び相対湿度から、天井裏空調機３の冷房運転と居室空調機４の運転を切り替え制御するものであるため、天井裏空調機３のＯＮ・ＯＦＦの周期が短くなり、天井裏空調機３が極端に低温の空間に曝されることがなく、このため空調機メーカーから指定される使用可能温度範囲や連続運転可能範囲から外れてしまうのを防止することができる。しかも、居室温度センサ６１からの居室温度データと絶対湿度センサ６３からの居室空間Ｓ１の湿度データにより算出される相対湿度が高い場合は、居室空間Ｓ１内の水蒸気を直接取り込んで処理する居室空調機４の除湿運転によって、効率良く居室空間Ｓ１の潜熱処理を行うため、天井材２の下面等への結露を防止し、居室空間Ｓ１の相対湿度を適切に制御して快適性を向上させることができる。 Therefore, during cooling, since the cooling operation of the ceiling air conditioner 3 and the operation of the room air conditioner 4 are switched and controlled from the room temperature, the suction temperature, and the relative humidity, the ceiling air conditioner 3 is turned ON / OFF. This prevents the ceiling air conditioner 3 from being exposed to an extremely low temperature space, thus preventing it from deviating from the usable temperature range or continuous operation range specified by the air conditioner manufacturer. can do. Moreover, when the relative humidity calculated from the room temperature data from the room temperature sensor 61 and the humidity data of the room space S1 from the absolute humidity sensor 63 is high, the room air conditioner that directly takes in and processes the water vapor in the room space S1. In order to efficiently perform the latent heat treatment of the living room space S1 by the dehumidifying operation of No. 4, it is possible to prevent condensation on the lower surface or the like of the ceiling material 2 and to improve the comfort by appropriately controlling the relative humidity of the living room space S1. it can.

また、上述した実施の形態によれば、天井裏空調機３と居室空調機４が、室外機５を共有するものであるため、天井裏空調機３と居室空調機４のそれぞれに独立した室外機を設ける必要がないといった利点がある。 Moreover, according to embodiment mentioned above, since the ceiling back air conditioner 3 and the room air conditioner 4 share the outdoor unit 5, it is the outdoor which became independent to each of the ceiling back air conditioner 3 and the room air conditioner 4. There is an advantage that it is not necessary to provide a machine.

なお、放射空調の開始に際して、居室温度が設定温度に対して著しく差がある場合に、運転初期のみ天井裏空調機３と居室空調機４の双方を駆動させるようにしてもよい。 At the start of radiant air conditioning, if the room temperature is significantly different from the set temperature, both the ceiling air conditioner 3 and the room air conditioner 4 may be driven only in the initial stage of operation.

また、上述した実施の形態では、コントローラ６Ａは、居室温度センサ６１により検出される居室温度データと絶対湿度センサ６３により検出される居室空間Ｓ１の絶対湿度データから相対湿度を算出し、相対湿度の設定値と比較することとしたが、絶対湿度センサ６３からの絶対湿度検出データとその設定値との比較に基づいて制御するようにしても良く、この場合、絶対湿度の設定値の範囲は、１３〜１８ｇ/ｋｇＤＡ程度とすることが好ましい。 In the embodiment described above, the controller 6A calculates the relative humidity from the room temperature data detected by the room temperature sensor 61 and the absolute humidity data of the room space S1 detected by the absolute humidity sensor 63, and the relative humidity is calculated. Although it was decided to compare with the set value, it may be controlled based on the comparison between the absolute humidity detection data from the absolute humidity sensor 63 and the set value. In this case, the range of the set value of the absolute humidity is: It is preferable to set it as about 13-18 g / kgDA.

また、居室湿度検出手段として、絶対湿度センサ６３に代えて相対湿度センサを採用して相対湿度を検出することとしても良く、あるいは居室湿度検出手段として、露点温度センサを採用することによって、相対湿度と居室温度から露点温度を算出し、その設定値との比較に基づいて制御するようにしても良く、この場合、設定値の範囲は、例えば１８℃〜２３℃程度とすることが好ましい。 Further, a relative humidity sensor may be used instead of the absolute humidity sensor 63 to detect the relative humidity as the living room humidity detecting means, or a relative humidity may be obtained by using a dew point temperature sensor as the living room humidity detecting means. The dew point temperature may be calculated from the room temperature and controlled based on a comparison with the set value. In this case, the range of the set value is preferably about 18 ° C. to 23 ° C., for example.

さらに、居室湿度検出手段として、絶対湿度センサ６３に代えて結露センサを採用し、例えば天井材２の下面の結露による濡れを検出することによって、居室空間Ｓ１における天井付近の空気が飽和水蒸気量未満であるか（相対湿度が１００％未満であるか）を判定するようにしても良い。 Furthermore, a dew condensation sensor is employed as the living room humidity detection means instead of the absolute humidity sensor 63, and for example, by detecting wetting due to dew condensation on the lower surface of the ceiling material 2, the air near the ceiling in the living room space S1 is less than the saturated water vapor amount. (Whether the relative humidity is less than 100%) may be determined.

また、上述した実施の形態では、冷房時は、居室温度、吸込温度、及び相対湿度から、ａｎｄ条件で天井裏空調機３の冷房運転と居室空調機４の除湿運転を切り替え制御することとしたが、例えば検出された居室空間Ｓ１の相対湿度、絶対湿度、あるいは露点温度が設定値よりも低い場合、あるいは天井材２の下面の結露による濡れのない場合に天井裏空調機３の冷房運転をＯＮ、居室空調機４の除湿運転をＯＦＦとし、設定値以上である場合、あるいは天井材２の下面の結露による濡れが検出された場合に天井裏空調機３の冷房運転をＯＦＦ、居室空調機４の除湿運転をＯＮとするように切り替え制御するものであっても良い。 In the above-described embodiment, during cooling, the cooling operation of the ceiling air conditioner 3 and the dehumidifying operation of the room air conditioner 4 are switched and controlled under the and condition from the room temperature, the suction temperature, and the relative humidity. However, for example, when the detected relative humidity, absolute humidity, or dew point temperature of the living room space S1 is lower than the set value, or when there is no wetting due to condensation on the lower surface of the ceiling material 2, the cooling operation of the ceiling air conditioner 3 is performed. ON, dehumidifying operation of room air conditioner 4 is turned OFF, and when it is above the set value or when wetting due to condensation on the lower surface of ceiling material 2 is detected, cooling operation of ceiling air conditioner 3 is turned OFF, room air conditioner Switching control may be performed so that the dehumidifying operation 4 is turned on.

また、上述の実施の形態では、コントローラ６Ａは天井裏空調機３及び居室空調機４のＯＮ・ＯＦＦを切り替え制御するものとして説明したが、天井裏空調機３の及び居室空調機４の出力を増減することによって、設定値に対する温度検出の差を小さくするようにしても良い。 In the above-described embodiment, the controller 6A has been described as switching on / off of the ceiling air conditioner 3 and the room air conditioner 4, but the outputs of the ceiling air conditioner 3 and the room air conditioner 4 are output. The difference in temperature detection with respect to the set value may be reduced by increasing or decreasing.

また、上述の実施の形態では、空調機３は不図示の室外機との間において、熱源をヒートポンプとして説明したが、当該熱源はヒートポンプに限定されるものではなく、他の熱源を利用することができる。例えば、温熱源をボイラーとし、冷熱源を吸収式冷凍機やターボ冷凍機などとすることができる。さらには、これら熱源を用いたファンコイルユニットを空調機３として用いることができる。 In the above-described embodiment, the air conditioner 3 is described as a heat pump between the air conditioner 3 and an outdoor unit (not shown). However, the heat source is not limited to the heat pump, and other heat sources are used. Can do. For example, the hot heat source can be a boiler, and the cold heat source can be an absorption refrigerator or a turbo refrigerator. Furthermore, a fan coil unit using these heat sources can be used as the air conditioner 3.

また、センサ６６はセンサ６１で代用し、コントローラ６Ａがコントローラ６Ｂを制御できる構成とすることもできる。 Further, the sensor 66 may be replaced with the sensor 61, and the controller 6A can control the controller 6B.

１躯体
２天井材
３天井裏空調機
３１ダクト
４居室空調機
５室外機
６Ａコントローラ（演算制御手段）
６Ｂ居室空調用コントローラ（居室空調用演算制御手段）
６１居室温度センサ（居室温度検出手段）
６２吸込温度センサ（吸込温度検出手段）
６３絶対湿度センサ（居室湿度検出手段）
６６居室空調用居室温度センサ（居室空調用居室温度検出手段）
Ｓ１居室空間
Ｓ２天井裏空間 DESCRIPTION OF SYMBOLS 1 Housing 2 Ceiling material 3 Ceiling back air conditioner 31 Duct 4 Room air conditioner 5 Outdoor unit 6A Controller (calculation control means)
6B Room air conditioner controller (Room air conditioner calculation control means)
61 Room temperature sensor (room temperature detection means)
62 Suction temperature sensor (suction temperature detection means)
63 Absolute humidity sensor (room humidity detection means)
66 Room temperature sensor for room air conditioning (room temperature detection means for room air conditioning)
S1 Living room space S2 Ceiling space

Claims

居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機と、前記居室空間の空気を取り込んで空調空気を前記居室空間へ供給する居室空調機と、前記居室空間の湿度を検出する居室湿度検出手段と、冷房時に前記居室湿度検出手段により検出される居室の湿度又はこの湿度に基づいて算出される露点温度が設定値より低い場合に前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させると共に前記居室空調機の出力をＯＮ又は増大させるように制御する演算制御手段と、を備えることを特徴とする放射空調システム。 A ceiling air conditioner that takes in air from the ceiling space defined in a sealed manner via a ceiling material above the living room space and supplies air-conditioned air to the ceiling space, and air conditioning by taking air from the living room space A room air conditioner for supplying air to the room space, a room humidity detecting means for detecting the humidity of the room space, and the humidity of the room detected by the room humidity detecting means during cooling or based on this humidity. When the dew point temperature is lower than the set value, the output of the ceiling air conditioner is turned on or increased and the output of the room air conditioner is turned off or reduced. When the dew point temperature is higher than the set value, the output of the ceiling air conditioner is turned off or reduced. A radiant air-conditioning system comprising: an arithmetic control unit configured to control the output of the living room air conditioner to be turned on or increased.

居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機と、前記居室空間の空気を取り込んで空調空気を前記居室空間へ供給する居室空調機と、前記居室空間の湿度を検出する居室湿度検出手段と、前記居室空間の温度を検出する居室温度検出手段と、前記天井裏空間から前記天井裏空調機への吸込温度を検出する吸込温度検出手段と、冷房時において、前記居室湿度検出手段により検出される前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させると共に前記居室空調機の出力をＯＮ又は増大させ、前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より低く、かつ前記居室温度検出手段により検出される居室温度及び前記吸込温度検出手段により検出される吸込温度がそれぞれ設定値より高い、といった条件を満足する場合に、前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、前記条件を満足しない場合に、前記天井裏空調機と前記居室空調機の出力をＯＦＦ又は減少させるように制御する演算制御手段と、を備えることを特徴とする放射空調システム。 A ceiling air conditioner that takes in air from the ceiling space defined in a sealed manner via a ceiling material above the living room space and supplies air-conditioned air to the ceiling space, and air conditioning by taking air from the living room space A room air conditioner for supplying air to the room space, a room humidity detecting means for detecting the humidity of the room space, a room temperature detecting means for detecting the temperature of the room space, and the ceiling air conditioner from the ceiling space. A suction temperature detecting means for detecting a suction temperature to the machine, and the ceiling when the humidity of the room space detected by the room humidity detecting means or a dew point temperature calculated from the humidity is higher than a set value during cooling. The output of the back air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased so that the humidity of the room space or the dew point temperature calculated from this humidity is lower than the set value and When the condition that the room temperature detected by the room temperature detecting means and the suction temperature detected by the suction temperature detecting means are higher than a set value is satisfied, the output of the ceiling air conditioner is turned on or increased. Computation control means for controlling to turn off or reduce the output of the ceiling air conditioner and the room air conditioner when the output of the room air conditioner is turned off or reduced and the condition is not satisfied. A featured radiation air conditioning system.

居室空調用居室温度検出手段を備え、演算制御手段は、前記居室空調用居室温度検出手段で検出される居室温度が、設定値より高い場合に天井裏空調機の出力をＯＦＦ又は減少させると共に居室空調機の出力をＯＮ又は増大させ、前記設定値よりも低い場合に前記天井裏空調機及び前記居室空調機の出力をＯＦＦ又は減少させるように制御することを特徴とする請求項１又は請求項２に記載の放射空調システム。 A room temperature detecting means for air conditioning is provided, and the calculation control means turns off or reduces the output of the ceiling air conditioner when the room temperature detected by the room air temperature detecting means for the room air conditioning is higher than a set value. The output of the ceiling air conditioner and the room air conditioner are controlled to be turned off or decreased when the output of the air conditioner is turned on or increased and lower than the set value. 2. The radiation air conditioning system according to 2.

居室空調用居室温度検出手段と、居室空調用演算制御手段とを備え、前記居室空調用演算制御手段は、前記居室空調用居室温度検出手段で検出される居室温度が、設定値よりも高い場合に天井裏空調機の出力をＯＦＦ又は減少させると共に居室空調機の出力をＯＮ又は増大させ、前記設定値よりも低い場合に前記天井裏空調機及び前記居室空調機の出力をＯＦＦ又は減少させるように制御することを特徴とする請求項１又は請求項２に記載の放射空調システム。 A room temperature detection means for room air conditioning and a calculation control means for room air conditioning, wherein the room air conditioning calculation control means has a room temperature detected by the room air conditioning room temperature detection means higher than a set value. The output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased. When the output is lower than the set value, the output of the ceiling air conditioner and the room air conditioner is turned off or reduced. The radiation air-conditioning system according to claim 1 or 2, wherein

居室湿度検出手段が、天井材の下面の結露による濡れの有無を検出する結露センサからなることを特徴とする請求項１〜４のいずれかに記載の放射空調システム。 The radiant air-conditioning system according to any one of claims 1 to 4, wherein the room humidity detecting means comprises a dew condensation sensor that detects the presence or absence of wetting due to dew condensation on the lower surface of the ceiling material.

天井裏空調機及び居室空調機が、共通の室外機を有することを特徴とする請求項１〜５のいずれかに記載の放射空調システム。 The radiant air conditioning system according to any one of claims 1 to 5, wherein the ceiling air conditioner and the room air conditioner have a common outdoor unit.

居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機により前記天井材を冷却又は加温して、前記天井材からの放射により前記居室空間の冷暖房を行う放射冷暖房方法において、居室空調機によって前記居室空間への空調空気の供給を可能とし、冷房時に、前記居室空間の湿度又はこの湿度に基づいて算出される露点温度が設定値より低い場合に前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させることを特徴とする放射冷暖房方法。 The ceiling material is cooled or heated by a ceiling back air conditioner that takes in air in the ceiling back space defined in a sealed manner via a ceiling material above the living room space and supplies conditioned air to the ceiling back space. In the radiant cooling and heating method of cooling and heating the living room space by radiation from the ceiling material, it is possible to supply conditioned air to the living room space by a living room air conditioner, and based on the humidity of the living room space or this humidity during cooling When the dew point temperature calculated is lower than the set value, the output of the ceiling air conditioner is turned on or increased and the output of the room air conditioner is turned off or decreased. A method of radiant cooling and heating, wherein the output is turned off or reduced.

居室空間の上側に天井材を介して密閉状に画成された天井裏空間の空気を取り込んで空調空気を前記天井裏空間へ供給する天井裏空調機により前記天井材を冷却又は加温して、前記天井材からの放射により前記居室空間の冷暖房を行う放射冷暖房方法において、居室空調機によって前記居室空間への空調空気の供給を可能とし、冷房時に、前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より高い場合に前記天井裏空調機の出力をＯＦＦ又は減少させると共に前記居室空調機の出力をＯＮ又は増大させ、前記居室空間の湿度又はこの湿度から算出される露点温度が設定値より低く、かつ居室温度及び前記天井裏空調機への吸込温度がそれぞれ設定値より高い、といった条件を満足する場合に、前記天井裏空調機の出力をＯＮ又は増大させると共に前記居室空調機の出力をＯＦＦ又は減少させ、前記条件を満足しない場合に、前記天井裏空調機と前記居室空調機の出力をＯＦＦ又は減少させることを特徴とする放射冷暖房方法。 The ceiling material is cooled or heated by a ceiling back air conditioner that takes in air in the ceiling back space defined in a sealed manner via a ceiling material above the living room space and supplies conditioned air to the ceiling back space. In the radiant cooling and heating method of cooling and heating the living room space by radiation from the ceiling material, it is possible to supply air-conditioned air to the living room space by a living room air conditioner, and calculated from the humidity of the living room space or the humidity during cooling When the dew point temperature is higher than a set value, the output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased, so that the humidity of the room space or the dew point temperature calculated from this humidity Is lower than the set value, and when the room temperature and the suction temperature into the ceiling air conditioner are higher than the set value, the output of the ceiling air conditioner is turned on. The room air conditioner output OFF or decrease of, when not satisfying the condition, radiation heating and cooling method characterized by outputting the OFF or reduction of the ceiling air conditioner and the room air conditioner with increases.

冷房時に、居室温度が、設定値よりも高い場合に天井裏空調機の出力をＯＦＦ又は減少させると共に居室空調機の出力をＯＮ又は増大させるように制御し、前記設定値よりも低い場合に前記天井裏空調機及び前記居室空調機の出力をＯＦＦ又は減少させることを特徴とする請求項７又は８に記載の放射冷暖房方法。 During cooling, when the room temperature is higher than the set value, the output of the ceiling air conditioner is turned off or reduced and the output of the room air conditioner is turned on or increased, and when the room temperature is lower than the set value, The radiant cooling and heating method according to claim 7 or 8, wherein the output of the ceiling air conditioner and the room air conditioner is turned off or reduced.