JPH03129219A - Air conditioner - Google Patents

Abstract

PURPOSE:To prevent an uncomfortable feeling caused by a cold air feeling when a heating operation is started and cause a dwelling region to approach a set temperature as soon as possible by a method wherein a hot air is distributed by a blown air amount distributing means into a bentilation port, a communication hole arranged in a double-floor and an auxiliary diffuser at an indoor side and a part of the hot air is returned from a recirculation port to a heat exchanger. CONSTITUTION:When a heating operation is started, hot air is distributed by a blown air amount distributing means into an auxiliary diffuser 34 opened into a room, a bentilation port 37 in a double-floor and a communication hole 38 at any location, a part of the hot air is returned from a recirculation port 42 to a heat exchanger 27 so as to perform a heat exchanging operation again; thereby the hot air is blown concurrently from an upper part and a lower part. With such an arrangement, it is possible to prevent uncomfortable feeling caused by a cold air feeling when the heating operation is started and at the same time to approach a set temperature as soon as possible.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は空気調和機、特にその吹出風の制御に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioner, and particularly to control of the air blowing from the air conditioner.

従来の技術 近年、空気調和機がつくり出す突内環境の快適性が重要
視されるようになってきた。BACKGROUND OF THE INVENTION In recent years, importance has been placed on the comfort of the indoor environment created by air conditioners.

従来の技術としては、例えば、実開昭６１−３３３７号
公報に示されているように、床下を利用した冷暖房装置
がある。As a conventional technique, there is an air-conditioning/heating system that utilizes an underfloor space, as disclosed in, for example, Japanese Utility Model Application Publication No. 61-3337.

以下、第６図から第１１図を参照しながら、従来の冷暖
房装置について説明を行う。Hereinafter, a conventional air-conditioning device will be explained with reference to FIGS. 6 to 11.

第５図は従来の冷暖房装置の暖房時の断側面図を示した
ものである。第５図において、１は室である。２は床で
あり、２ａは床スラブである。１′は階下の室であυ、
３はこの天井板である。４は前記床２と天井板３との間
に形成される空間部である。６は前記空間部４の外壁近
くに設置されたヒートポンプ式空気調和機である。６は
前記と一トポンプ式空気調和機６の送気ダクトである。FIG. 5 shows a cross-sectional side view of a conventional heating and cooling device during heating. In FIG. 5, 1 is a chamber. 2 is a floor, and 2a is a floor slab. 1' is the downstairs room υ,
3 is this ceiling board. 4 is a space formed between the floor 2 and the ceiling plate 3. 6 is a heat pump type air conditioner installed near the outer wall of the space 4. Reference numeral 6 denotes an air supply duct of the above-mentioned pump type air conditioner 6.

７は冷房、暖房に応じて風路を切換えるダンパーである
。８は前記床スラブ２ａと壁板１１とで形成される加温
室である。８ａは前記加温室８の仕切壁である。８ｂは
吋記仕切壁８ａの端部に形成した通気口である。９は暖
房時に温風を前記加温室８に吹込む送風口である。１ｏ
は冷房時に冷風を前記室１に吹込む送風口である。１２
は前記ヒートポンプ式空気調和機５の給気口である。１
３は前記加温室８と前記空間部４に連通ずる連通口であ
る。１４は前記室１と前記加温室８に連通ずる連通口で
ある。7 is a damper that switches the air path depending on cooling or heating. 8 is a heating chamber formed by the floor slab 2a and the wall plate 11. 8a is a partition wall of the heating chamber 8. 8b is a vent formed at the end of the partition wall 8a. Reference numeral 9 denotes an air outlet that blows warm air into the heating chamber 8 during heating. 1o
is an air outlet that blows cold air into the chamber 1 during cooling. 12
is an air supply port of the heat pump type air conditioner 5. 1
3 is a communication port that communicates with the heating chamber 8 and the space 4. 14 is a communication port that communicates between the chamber 1 and the heating chamber 8.

以上のように構成された冷暖房装置について、以下その
動作について説明する。The operation of the heating and cooling device configured as described above will be described below.

まず暖房時には、前記と一トポンプ式空気調和ｍ５で暖
められた温風が前記送気ダクト６に送られる。そして、
前記ダンパー７が第１１図のように作°動して温風は前
記送風口９に送られ、前記加温室８に流込む。このとき
、温風により前記床スラブ２ａが加温され、床面の熱で
発生する自然対流で前記室１を暖房する。そして、前記
加温室内の温風は第６図の実線矢印のように前記通気口
８ｂを通った後、第７図のように前記連通口１３から前
記空間部４に流出して、前記給気口１２に還流される。First, during heating, warm air warmed by the pump type air conditioner m5 is sent to the air supply duct 6. and,
The damper 7 operates as shown in FIG. 11, and hot air is sent to the air outlet 9 and flows into the heating chamber 8. At this time, the floor slab 2a is heated by the hot air, and the room 1 is heated by natural convection generated by the heat on the floor surface. The warm air in the heating chamber passes through the ventilation port 8b as shown by the solid arrow in FIG. 6, and then flows out from the communication port 13 into the space 4 as shown in FIG. It is refluxed to the air port 12.

次に冷房時には、前記ダンパー７が前記送風口９をふさ
ぐことによシ、前記ヒートポンプ式空気調和機６で冷や
された冷気は第８図のように前記送風口１０より前記室
１に直接吹出して冷房する。Next, during cooling, the damper 7 blocks the air outlet 9, so that the cold air cooled by the heat pump air conditioner 6 is blown directly into the room 1 from the air outlet 10 as shown in FIG. Cool it down.

前記室１を冷房した冷気は、第１０図のように前記連通
口１４，１３を通って前記空間部４に達した後、前記給
気口１２に還流される。The cold air that has cooled the chamber 1 passes through the communication ports 14 and 13 and reaches the space 4, as shown in FIG. 10, and then returns to the air supply port 12.

発明が解決しようとする課題 しかしながら上記のような構成では、暖房時に室内に直
接温風を吹出さないので、運転開始時に室内が設定温度
に達するまでに時間がかかるという課題を有していた。Problems to be Solved by the Invention However, the above configuration has a problem in that it takes time for the indoor temperature to reach the set temperature at the start of operation because hot air is not blown directly into the room during heating.

また、温風で床スラブを暖めて床面の熱で発生する自然
対流で室内を暖房するため、床への熱損失が大きく、暖
房効率が悪いという課題を有していた。In addition, since the room is heated by heating the floor slab with hot air and natural convection generated by the heat on the floor surface, there is a problem that heat loss to the floor is large and heating efficiency is poor.

本発明は上記課題を解決するもので、暖房運転開始時に
室内を早く設定温度にするとともに、暖房効率を向上さ
せることができる空気調和機を提供することを目的とす
る。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an air conditioner that can quickly bring the indoor temperature to a set temperature at the start of heating operation and improve heating efficiency.

課題を解決するための手段 この目的を達成するために本発明の空気調和機は、室内
機に、二重床の下部空間に開口した下吹出口と、室内に
開口した上吹出口と、これらの吹出口を暖房・冷房の運
転モードに応じて切替える吹出口切替手段と、室内に開
口した補助吹出口と、との補助吹出口と前記下吹出口と
を連結する風路と、この風路と前記下吹出口とに温風を
分配する吹出風量分配手段と、前記風路と熱交換器上部
空間とを連通ずる再循環口と、前記二重床に端部で室内
と連通ずる通風口と、任意の位置で室内と連通ずる連通
孔とを設けている。Means for Solving the Problems In order to achieve this object, the air conditioner of the present invention includes an indoor unit, a lower air outlet opening into the lower space of the double floor, an upper air outlet opening into the room, and an upper air outlet opening into the room. an air outlet switching means for switching the air outlet according to the heating/cooling operation mode; an auxiliary air outlet opened indoors; an air path connecting the auxiliary air outlet and the lower air outlet; and the lower air outlet, a recirculation port that communicates the air passage with the upper space of the heat exchanger, and a ventilation port that communicates with the room at an end of the double floor. A communication hole communicating with the interior of the room is provided at an arbitrary position.

作　　用 本発明は、上記の様な構成によシ、暖房運転開始時には
、吹出風量分配手段により、室内に開口した補助吹出口
と、二重床の端部の通風口と任意場所の連通孔に温風を
分配し、さらに温風の一部を再循環口から熱交換器にも
どして再度熱交換することによって、高温風を上方と下
方から同時に吹出す。このことによって、暖房運転開始
時の冷風感による不快感を防止するとともに、早く設定
温度に近づける。Function The present invention has the above-mentioned configuration, and when the heating operation starts, the auxiliary air outlet opened into the room, the ventilation hole at the end of the double floor, and the communication hole at an arbitrary location are connected by the airflow distribution means at the start of the heating operation. By distributing hot air to the air and then returning a portion of the hot air to the heat exchanger through the recirculation port for heat exchange again, high-temperature air is blown out from above and below at the same time. This prevents discomfort due to the feeling of cold air at the start of heating operation, and allows the temperature to quickly approach the set temperature.

そして、室内温度が設定温度に達すると、吹出風量分配
手段によって、二重床の端部の通風口と任意場所の連通
孔のみから温風を吹出して、床からの微風吹出暖房を行
い、風による不快感のない頭寒足熱型の理想的な温熱環
境をつくる。When the indoor temperature reaches the set temperature, the airflow distribution means blows out warm air only from the ventilation holes at the ends of the double floor and the communication holes at arbitrary locations to perform breeze blowing heating from the floor. Creates an ideal thermal environment for cold head and warm feet without discomfort.

又、冷房時は吹出口切替手段により、室内機の室内側の
上吹出口から冷風を上方に吹出し、二重床の端部の通風
口と任意場所の連通孔から吹込み、風による不快感のな
い頭寒足熱型空調を達成するものである。In addition, during cooling, the air outlet switching means blows cold air upward from the upper air outlet on the indoor side of the indoor unit, and blows it from the ventilation hole at the end of the double floor and the communication hole at any location, reducing discomfort caused by the wind. This achieves air conditioning that keeps your head cold and your feet warm.

実施例 以下、本発明の一実施例を第１図から第４図により説明
する。EXAMPLE Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 to 4.

２１は側壁、２２は床スラブ、２３は天井である。21 is a side wall, 22 is a floor slab, and 23 is a ceiling.

２４は人間が生活する居住域であり、ＡＳ）（ＲＡＥ。24 is a residential area where humans live, AS) (RAE).

５ＴＡＮＤＡＲＤ　では高さ１８００ｆｆ以下で、かつ
側壁から６００ｎ以上離れた空間と定義されている（第
２図の２点鎖線で囲まれた空間）。２５は空気調和機の
室内機であシ、室の片隅床部に設置される。前記室内機
２５は外殻２６、熱交換器２７、送風機１００を配置し
ている。前記送風機１００は吹出口切替手段であシ、正
逆回転の可能なファン２８とケーシング２９で構成され
ている。３０は前記室内機２６の上部に設けた上吹出口
である。5TANDARD is defined as a space with a height of 1800ff or less and a distance of 600n or more from the side wall (the space surrounded by the two-dot chain line in Figure 2). 25 is an indoor unit of an air conditioner, which is installed on the floor in one corner of the room. The indoor unit 25 includes an outer shell 26, a heat exchanger 27, and a blower 100. The blower 100 is an air outlet switching means, and is composed of a fan 28 and a casing 29 that can rotate in forward and reverse directions. 30 is an upper air outlet provided at the upper part of the indoor unit 26.

３１は前記室内機２６の下部に設けた下吹出口である。31 is a lower air outlet provided at the lower part of the indoor unit 26.

３２は吹出風量分配手段であシ、前記外殻２６に支点を
有して駆動可能なダンパである。３３は風路である。３
４は補助吹出口であシ、前記室内機上部に開口しておシ
、前記風路３３によって前記下吹出口３１に連結されて
いる。３６は二重床である。３６は前記二重床３５の下
部空間であり、前記下吹出口３１が開口している。３７
は前記二重床３６と側壁２１０合接する端部にて室内と
連通ずる通風口であシ、この位置は前記下吹出口３１か
らできる限り離れており、かつ前記側壁２１から６００
ｆ１以内で人間の出入りや事務什器（書庫等）の邪魔に
ならない位置が最適である。Reference numeral 32 denotes a blowout air volume distribution means, which is a damper having a fulcrum on the outer shell 26 and capable of being driven. 33 is a wind path. 3
Reference numeral 4 denotes an auxiliary air outlet, which opens at the top of the indoor unit and is connected to the lower air outlet 31 by the air passage 33. 36 is a double floor. 36 is a lower space of the double floor 35, and the lower air outlet 31 is open. 37
is a ventilation hole communicating with the room at the end where the double floor 36 and the side wall 210 join, and this position is as far away from the lower air outlet 31 as possible, and is 600 mm away from the side wall 21.
The optimal location is within f1 and does not interfere with people's access or office furniture (such as a library).

３８は前記二重床３６の任意の場所にて室内と連通ずる
微小径の連通孔である。３９は室内温度を検知する温度
センサであシ、前記室内機２５の前面に設置されている
。４ｏは前記熱交換２７と前記上吹出口３０との間に形
成された熱交換器上部空間である。４１は前記風路３３
と前記熱交換器上部空間４ｏを仕切る仕切シ板である。Reference numeral 38 denotes a micro-diameter communication hole that communicates with the interior of the room at an arbitrary location on the double floor 36. Reference numeral 39 denotes a temperature sensor for detecting indoor temperature, and is installed in front of the indoor unit 25. 4o is a heat exchanger upper space formed between the heat exchanger 27 and the upper outlet 30. 41 is the air passage 33
and a partition plate that partitions the heat exchanger upper space 4o.

４２は前記仕切り板４１に設けられた再循環口であシ、
前記風路３３と前記熱交換器上部空間４ｏを連通してい
る。42 is a recirculation port provided in the partition plate 41;
The air passage 33 and the heat exchanger upper space 4o are communicated with each other.

以上のように構成された空気調和機について、以下その
動作を説明する。The operation of the air conditioner configured as above will be described below.

まず、暖房運転開始時には前記ファン２８が回転して、
前記熱交換器２７で暖められた空気が下方に流れる。そ
して、第３図に示すように、前記ダンパ３２が駆動して
前記下吹出口３１と前記風路３３とに温風を分配する。First, at the start of heating operation, the fan 28 rotates,
Air heated by the heat exchanger 27 flows downward. Then, as shown in FIG. 3, the damper 32 is driven to distribute hot air to the lower outlet 31 and the air passage 33.

そして、前記風か３に分配された温風の一部は、前記再
循環口４２から前記熱交換器上部空間４０に吸込まれ、
再度熱交換する。この繰シ返しＫより、高温となった温
風を前記下吹出口３１と前記補助吹出口３４から吹出す
。前記下吹出口３１から吹出した高温風は前記下部空間
３６を通シ、前記通風口３７と前記連通孔３８から吹出
して前記居住域２４を下方から暖める。これと同時に、
前記補助吹出口３４から吹出す高温風で前記居住域２４
を上方から暖めて、早く設定温度に近づける。そして、
前記温度センサ３９で検知した温度が設定温度に達する
と、前記ダンパ３２を駆動させて前記風路３３をふさぎ
、第１図及び第２図の実線に示すように、前記通風口３
７と前記連通口３８からのみ温風を吹出して前記居住域
２４を暖めた後、前記上吹出口３゜（暖房時吸込兼用）
から吸込む。尚、前記連通孔３８は微小径であるため、
ここから吹出す温風の風速は０　、１　ｍ／　ｓ以下と
小さく、人間が気流による不快感を感じることはない。A part of the warm air distributed to the wind 3 is sucked into the heat exchanger upper space 40 from the recirculation port 42,
Heat exchange again. Through this repetition K, hot air that has become high temperature is blown out from the lower air outlet 31 and the auxiliary air outlet 34. The high-temperature air blown from the lower outlet 31 passes through the lower space 36 and is blown out from the ventilation opening 37 and the communication hole 38 to warm the living area 24 from below. At the same time,
The high temperature air blown out from the auxiliary outlet 34 blows out the living area 24.
Warm from above to quickly reach the set temperature. and,
When the temperature detected by the temperature sensor 39 reaches the set temperature, the damper 32 is driven to close the air passage 33, as shown by the solid line in FIGS.
7 and the communication port 38 to warm the living area 24, the upper air outlet 3° (also used as suction during heating)
Inhale from In addition, since the communication hole 38 has a minute diameter,
The speed of warm air blown out from here is low, less than 0.1 m/s, and humans do not feel uncomfortable due to the airflow.

次に、冷房運転時には前記ファン２８が暖房運転時とは
逆回転を行う様に設定してあシ、第１図及び第２図の点
線に示すように、空気は上方に流れ、ｍＪ記熟熱交換器
２７通り冷された後、前記上吹出口３０から上方に向け
て吹出される。そして、上方に流出した冷気は前記天井
２３にぶつかり、そとから自重により下方へ広がりなが
ら下降する。Next, during the cooling operation, the fan 28 is set to rotate in the opposite direction to that during the heating operation, so that the air flows upward, as shown by the dotted lines in Figures 1 and 2, and the mJ is increased. After being cooled through the heat exchanger 27, it is blown upward from the upper outlet 30. The cold air flowing upward hits the ceiling 23, and then spreads downward due to its own weight and descends.

そして、前記居住域２４を冷却したのち、前記通風口３
７と前記連通孔３８から吸込まれ、前記二重床３６の下
部空間３ｅを通り、前記下吹出口３１（冷房時吸込兼用
）から吸込まれる。After cooling the living area 24, the ventilation opening 3
7 and the communication hole 38, passes through the lower space 3e of the double bed 36, and is sucked in from the lower air outlet 31 (also used as suction during cooling).

上記５１！施例によれば、暖房運転開始時には前記ダン
パ３２を駆動させて温風を分配し、前記通風口３７と前
記連通孔３８と前記補助吹出口３４とから吹出す。この
とき、前記風路３３を通る温風の一部が前記再循環口４
２から前記熱交換器２７の上流側に吸込まれ、再度熱交
換してよシいっそう暖められる。このことによシ、上方
と下方の百方から高温風を吹出し、冷風感による不快感
を防止するとともに、前記居住域２４を早く設定温度に
近づける。Above 51! According to the embodiment, at the start of heating operation, the damper 32 is driven to distribute warm air and blow it out from the ventilation port 37, the communication hole 38, and the auxiliary air outlet 34. At this time, a part of the warm air passing through the air passage 33 is transferred to the recirculation port 4.
2 is sucked into the upstream side of the heat exchanger 27, where the heat is exchanged again and the heat is further warmed. As a result, high-temperature air is blown from both the upper and lower directions, thereby preventing the discomfort caused by the feeling of cold air and bringing the living area 24 closer to the set temperature quickly.

そして、設定温度に到達すると、前記ダンパ３２を駆動
させて、前記風路３３をふさぎ、すべての温風を前記通
風口３７と前記連通孔３Ｂから吹出して、第４図に示す
ように床全面から温風で直接前記居住域２４を暖めるの
で、暖房効率が良く、かつ均一な温度分布が得られる。When the set temperature is reached, the damper 32 is driven to close the air passage 33 and blow out all the hot air from the ventilation port 37 and the communication hole 3B, so that the entire floor is covered as shown in FIG. Since the living area 24 is directly heated with warm air, heating efficiency is high and a uniform temperature distribution can be obtained.

また、冷房時には前記上吹出口３ｏから冷風を上方向に
吹出し、天井にぶつけ、その後は冷風の自重で自然降下
させるため、風による不快感のない非常に均一な温度分
布が得られ、高品位な空調が実現できる。In addition, during cooling, cold air is blown upward from the upper air outlet 3o, hits the ceiling, and then falls naturally under its own weight, resulting in a very uniform temperature distribution without any discomfort caused by the wind, resulting in high quality. air conditioning can be achieved.

尚、本実施例では、上下吹出口切替手段をファンの正逆
回転の切替えによシ対応しているが、切替ダンパー等に
より吹出口を切替えてもよい。In this embodiment, the upper and lower air outlet switching means is used to switch between forward and reverse rotation of the fan, but the air outlet may be switched using a switching damper or the like.

また、本実施例では、冷房時は下吹出口を吸込口とし暖
房時は上吹出口を吸込口としているが、専用の吸込口を
別途設ける仕様としてもよいのは言うまでもない。Further, in this embodiment, the lower outlet is used as the suction port during cooling and the upper outlet is used as the suction port during heating, but it goes without saying that a dedicated suction port may be provided separately.

さらに、本実施例では、二重床で下部空間を形成してい
るが、下部空間を床下に設けても同様の効果が得られる
ことは言うまでもない。Further, in this embodiment, the lower space is formed by a double floor, but it goes without saying that the same effect can be obtained even if the lower space is provided under the floor.

発明の効果 以上の実施例から明らかなように本発明は、熱交換器に
よυ空気調和された温調空気を送風する送風機を内蔵し
た室内機に、二重床の下部空間に開口した下吹出口と、
室内に開口した上吹出口と、これらの吹出口を暖房・冷
房の運転モードに応じて切替える吹出口切替手段と、室
内に開口した補助吹出口と、この補助吹出口と前記下吹
出口とを連結する風路と、この風路と前記下吹出口とに
温風を分配する吹出風量分配手段と、前記風路と熱交換
器上部空間とを連通ずる再循環口と、前記二重床に端部
で室内と連通ずる通風口と、任意の位置で室内と連通ず
る連通孔とを設けることにより、暖房運転開始時には吹
出風量分配手段で温風を二重床に設けた通風口と連通孔
♂、室内側の補助吹出口に分配し、さらに温風の一部を
再循環口から熱交換器にもどして再度暖めることによっ
て、高温風を上方と下方から同時に吹出す。このことに
よって、暖房運転開始時の冷風感による不快感を防止す
るとともに、居住域を早く設定温度に近づけることが可
能である。Effects of the Invention As is clear from the above embodiments, the present invention provides an indoor unit equipped with a built-in blower for blowing temperature-controlled air that has been conditioned by a heat exchanger. Air outlet and
An upper air outlet opened indoors, an air outlet switching means for switching these air outlets according to a heating/cooling operation mode, an auxiliary air outlet opened indoors, and a combination of the auxiliary air outlet and the lower air outlet. A connecting air path, a blowout air volume distribution means for distributing hot air between the air path and the lower air outlet, a recirculation port communicating the air path and the upper space of the heat exchanger, and By providing a ventilation hole that communicates with the room at the end and a communication hole that communicates with the room at an arbitrary position, when heating operation starts, hot air is distributed by the blowout air volume distribution means. ♂, the hot air is distributed to the auxiliary air outlet on the indoor side, and a portion of the hot air is returned to the heat exchanger through the recirculation port to be warmed again, thereby blowing out high-temperature air from above and below at the same time. This prevents discomfort caused by the feeling of cold air at the start of heating operation, and allows the living area to quickly reach the set temperature.

そして、居住域が設定温度に達すると、吹出風量分配手
段で二重床に設けた通風口と連通孔のみから温風を吹出
すことによシ、暖房効率が良く、かつ頭寒足熱型の均一
な室内温度分布を得ることが可能である。When the living area reaches the set temperature, the airflow distribution means blows out warm air only from the ventilation holes and communication holes provided in the double floor, resulting in high heating efficiency and uniform heating. It is possible to obtain indoor temperature distribution.

冷房運転時には吹出口切替手段で冷風を室内側の上吹出
口より天井に向けて吹出し、比重差で降下してきた冷気
を二重床に設けた通風口と連通孔から吹込むことによシ
、均一な室内温度分布を得る仁とが可能である。During cooling operation, the air outlet switching means blows cold air toward the ceiling from the upper air outlet on the indoor side, and the cold air that falls due to the difference in specific gravity is blown in through the ventilation holes and communication holes provided in the double floor. It is possible to obtain a uniform indoor temperature distribution.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例における空気調和機の要部断
面図、第２図は上記空気調和機を設置した室の断面図、
第３図は上記空気調和機の暖房運転開始時の要部断面図
、第４図は上記空気調和機を設置した室の斜視図、第６
図は従来の空気調和機の暖房時の断面図、第６図は第５
図の■−■線平部平面図７図は第６図の■−■線断面図
、第８分配手段（ダンパ）、３３・・・・・・風路、３
４・・・・・・補助吹出口、３５・・・・・・二重床、
３６・・・・・・下部空間、３７・・・・・・通風口、
３８・・・・・・連通孔、４ｏ・・・・・・熱交換器上
部空間、４２・・・・−・再循環口、１００・・・・・
・吹出口切替手段（送風機）。FIG. 1 is a sectional view of essential parts of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a sectional view of a room in which the air conditioner is installed.
Figure 3 is a cross-sectional view of the main parts of the air conditioner when heating operation starts, Figure 4 is a perspective view of the room in which the air conditioner is installed, and Figure 6 is a perspective view of the room in which the air conditioner is installed.
The figure is a cross-sectional view of a conventional air conditioner during heating;
Figure 7 is a cross-sectional view taken along the line ■-■ in Figure 6, the 8th distribution means (damper), 33...Air passage, 3
4...Auxiliary air outlet, 35...Double floor,
36... Lower space, 37... Ventilation opening,
38...Communication hole, 4o...Heat exchanger upper space, 42...Recirculation port, 100...
- Air outlet switching means (blower).

Claims (1)

【特許請求の範囲】[Claims] 熱交換器により空気調和された温調空気を送風する送風
機を内蔵した室内機に、二重床の下部空間に開口した下
吹出口と、室内に開口した上吹出口と、これらの吹出口
を暖房・冷房の運転モードに応じて切替える吹出口切替
手段と、室内に開口した補助吹出口と、この補助吹出口
と前記下吹出口とを連結する風路と、この風路と前記下
吹出口とに温風を分配する吹出風量分配手段と、前記風
路路と熱交換器上部空間とを連通する再循環口と、前記
二重床に端部で室内と連通する通風口と、任意の位置で
室内と連通する連通孔とを設けたことを特徴とする空気
調和機。An indoor unit that has a built-in blower that blows temperature-controlled air that has been conditioned by a heat exchanger has a lower outlet that opens into the lower space of the double floor, an upper outlet that opens into the room, and these outlets. An air outlet switching means that switches according to the heating/cooling operation mode, an auxiliary air outlet that opens into the room, an air path that connects the auxiliary air outlet and the lower air outlet, and this air path and the lower air outlet. a blowout air volume distribution means for distributing warm air to the air, a recirculation port that communicates the air path with the space above the heat exchanger, a ventilation port that communicates with the room at an end of the double floor; An air conditioner characterized by having a communication hole communicating with a room at a certain position.