JPH11241836A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH11241836A JPH11241836A JP10059089A JP5908998A JPH11241836A JP H11241836 A JPH11241836 A JP H11241836A JP 10059089 A JP10059089 A JP 10059089A JP 5908998 A JP5908998 A JP 5908998A JP H11241836 A JPH11241836 A JP H11241836A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- air
- indoor
- heat
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，室内ユニットをコ
ンパクト化すると共に，暖房効率の低下を抑えながら効
率的に除湿運転を行うことができるようにした空気調和
機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a compact indoor unit and capable of performing a dehumidifying operation efficiently while suppressing a decrease in heating efficiency.
【０００２】[0002]
【従来の技術】従来，室内の湿度を下げるために行う除
湿運転（以下，ドライ運転という）は，弱冷房運転によ
るものが主流である。該弱冷房運転による除湿では，室
内空気を冷却することにより当該空気の飽和蒸気を小さ
くしている。2. Description of the Related Art Conventionally, a dehumidifying operation (hereinafter referred to as a dry operation) performed to reduce indoor humidity is mainly performed by a weak cooling operation. In the dehumidification by the weak cooling operation, the saturated steam of the air is reduced by cooling the indoor air.
【０００３】従って，当該除湿された空気をそのまま室
内に送風すると室温が低下する問題がある。また，室温
が設定温度に近づいたり，当該設定温度が高い場合に
は，圧縮機は断続運転状態となるため除湿効率が低下す
る問題がある。Therefore, if the dehumidified air is directly blown into the room, there is a problem that the room temperature is lowered. Further, when the room temperature approaches the set temperature or when the set temperature is high, the compressor enters an intermittent operation state, so that there is a problem that the dehumidifying efficiency is reduced.
【０００４】このような観点から，室内ユニット内に２
つの熱交換器を一方が風上側に，他方が風下側になるよ
うに並設すると共に減圧装置を設けた本格再熱方式が提
案されている。[0004] From this point of view, two indoor units
A full-scale reheating system has been proposed in which two heat exchangers are arranged side by side with one on the leeward side and the other on the leeward side, and provided with a pressure reducing device.
【０００５】当該本格再熱方式では，ドライ運転時に風
下側に配設された熱交換器からの冷媒を減圧装置で減圧
して風上側に配設された熱交換器に供給することによ
り，風上側の熱交換器を蒸発器として作用させて空気を
冷却除湿し，風下側の熱交換器を再熱器として作用させ
て，蒸発器で冷却除湿された空気を暖めて室内に送風し
ている。[0005] In the full-scale reheating method, the refrigerant from the heat exchanger disposed on the lee side during the dry operation is depressurized by the decompression device and supplied to the heat exchanger disposed on the leeward side. The upper heat exchanger acts as an evaporator to cool and dehumidify the air, and the leeward heat exchanger acts as a reheater to warm the air dehumidified by the evaporator and send it indoors. .
【０００６】なお，当該再熱器は凝縮器と同様の原理で
動作するが，本明細書では暖房以外の目的で空気を暖め
る意味からかかる作用を行う熱交換器を再熱器と記載す
る。Although the reheater operates on the same principle as the condenser, in the present specification, a heat exchanger that performs such an operation for the purpose of heating air for purposes other than heating is described as a reheater.
【０００７】また，室内ユニット内に２つの熱交換器を
一方の熱交換器が風下側にならないように隣接させて設
けると共に減圧装置を設けて，各熱交換器を通過した空
気をミックスして室内に送風するエアーミックス方式が
提案されている。Further, two heat exchangers are provided in the indoor unit so as to be adjacent to each other so that one of the heat exchangers is not leeward, and a decompression device is provided to mix air passing through each heat exchanger. An air mix system that blows air into a room has been proposed.
【０００８】当該エアーミックス方式では，ドライ運転
時は一方の熱交換器から供給される冷媒を減圧装置によ
り減圧して他方の熱交換器に供給することにより，冷媒
の下流側の熱交換器を蒸発器として作用させて冷却除湿
された冷気を得，また上流側の熱交換器を再熱器として
作用させて暖気を得て，これらをミックスして室内に送
風している。In the air mix method, during the dry operation, the refrigerant supplied from one heat exchanger is depressurized by a decompression device and supplied to the other heat exchanger, so that the heat exchanger on the downstream side of the refrigerant is cooled. It works as an evaporator to obtain cool and dehumidified cool air, and the upstream heat exchanger works as a reheater to obtain warm air, mix them and send them to the room.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら，室内ユ
ニット内に配設される複数の熱交換器は，通常同じ長さ
のものが用いられているので減圧装置の設置場所を確保
することが困難であり，このため近年特に強く要望され
ている室内ユニットのコンパクト化を十分に達成するこ
とが困難であった。However, since a plurality of heat exchangers arranged in the indoor unit are usually of the same length, it is difficult to secure a place for installing the pressure reducing device. For this reason, it has been difficult to sufficiently achieve a compact indoor unit that has been particularly strongly demanded in recent years.
【００１０】また，２つの熱交換器を並設した本格再熱
方式では，暖房運転時には冷媒が風上側の熱交換器から
最初に供給されため，当該風上側の熱交換器で暖められ
た空気は風下側の熱交換器を通過する際に，当該風下側
の熱交換器に熱を奪われて暖房効率が低下する問題があ
る。Further, in the full-scale reheating system in which two heat exchangers are arranged side by side, during the heating operation, the refrigerant is first supplied from the heat exchanger on the windward side, so that the air heated by the heat exchanger on the windward side is used. When passing through the heat exchanger on the leeward side, there is a problem that heat is deprived by the heat exchanger on the leeward side and the heating efficiency is reduced.
【００１１】一方，エアーミックス方式では，室内ユニ
ットに吸気された空気は，本格再熱方式のように２度熱
交換器を通過することはなく，冷媒の流すパターンを工
夫することによってある程度暖房効率の低下を抑えるこ
とができるが，冷気と暖気とをミックスして室内に送風
する構成であるため，当該ミックスが十分に行われない
ときには吹出し空気に温度分布が生じて，或所では寒く
なり，別の所では蒸暑くなってしまう恐れがあった。On the other hand, in the air mixing system, the air taken into the indoor unit does not pass through the heat exchanger twice as in the case of the full-scale reheating system. However, since the air is blown into the room after mixing the cool air and the warm air, when the mixing is not performed sufficiently, a temperature distribution is generated in the blown air, and the air becomes cold in some places. There was a risk of getting humid elsewhere.
【００１２】そこで，本発明は，室内ユニットのコンパ
クト化を達成すると共に，本格再熱方式におけるような
流路抵抗の増大や暖房効率の低下を抑え，またエアーミ
ックス方式におけるような冷気と暖気とのミックスが不
十分な空気の吐出しを低減して，高効率かつ快適な空気
調和を行うことができる空気調和機を提供することを目
的とする。Therefore, the present invention achieves a compact indoor unit, suppresses an increase in flow path resistance and a decrease in heating efficiency as in a full-scale reheat system, and reduces the amount of cool air and warm air as in an air mix system. It is an object of the present invention to provide an air conditioner capable of performing high-efficiency and comfortable air conditioning by reducing the discharge of insufficient air.
【００１３】[0013]
【課題を解決するための手段】上記課題を解決するため
に，請求項１にかかる発明は，冷媒と室内空気とを熱交
換させる室内熱交換器と，室内から空気を吸気して室内
熱交換器を通過させた後室内に吹出すファンとを備えた
室内ユニットとを有した空気調和機において，室内ユニ
ットが，冷媒を減圧又は絞る減圧装置を備え，かつ，室
内熱交換器が，少なくとも２以上の熱交換器にからなる
と共に，その内の１の熱交換器の横幅が他の熱交換器よ
り短く設定されて，当該横幅を短く設定したことにより
形成される空間に減圧装置を並設する。これにより，室
内ユニットのコンパクト化を可能にしたことを特徴とす
る。Means for Solving the Problems To solve the above-mentioned problems, the invention according to claim 1 comprises an indoor heat exchanger for exchanging heat between a refrigerant and indoor air, and an indoor heat exchange by sucking air from indoors. An air conditioner having an indoor unit having a fan that blows indoors after passing through a heat exchanger, wherein the indoor unit includes a decompression device that decompresses or throttles the refrigerant, and the indoor heat exchanger includes at least two decompressors. In addition to the above heat exchanger, the width of one of the heat exchangers is set shorter than that of the other heat exchangers, and a pressure reducing device is juxtaposed in a space formed by setting the width to be shorter. I do. As a result, the indoor unit can be made more compact.
【００１４】請求項２にかかる発明は，室内熱交換器
が，風上側に配設されて除湿運転時には，蒸発器として
作用する第１熱交換器と，該第１熱交換器の風下側に配
設されて，除湿運転時には再熱器として作用する第２熱
交換器と，第１熱交換器に隣接して，除湿運転時には再
熱器として作用する第３熱交換器とから形成する。この
とき，当該第３熱交換器が第１及び第２熱交換器より横
幅が短く設定されて減圧装置の配設空間を形成し，これ
により室内ユニットのコンパクト化を可能にしたことを
特徴とする。According to a second aspect of the present invention, the indoor heat exchanger is disposed on the windward side and functions as an evaporator during the dehumidifying operation, and the first heat exchanger is located on the leeward side of the first heat exchanger. A second heat exchanger is provided and acts as a reheater during the dehumidification operation, and a third heat exchanger is disposed adjacent to the first heat exchanger and acts as a reheater during the dehumidification operation. At this time, the third heat exchanger is set to have a smaller width than the first and second heat exchangers to form a space for disposing the pressure reducing device, thereby enabling the indoor unit to be compact. I do.
【００１５】請求項３にかかかる発明は，減圧装置が，
除湿運転時に第１熱交換器を蒸発器として作用させ，第
２及び第３熱交換器を再熱器として作用させる除湿用減
圧装置であることを特徴とする。According to a third aspect of the present invention, the pressure reducing device comprises:
It is a dehumidifying decompression device in which the first heat exchanger functions as an evaporator and the second and third heat exchangers function as reheaters during the dehumidifying operation.
【００１６】[0016]
【発明の実施の形態】本発明の実施の形態を図を参照し
て説明する。図１は実施の形態にかかる空気調和機の室
内ユニットの側断面図であり，図２は横断面図の一部を
示す図である。また，図３は当該空気調和機の冷媒回路
図である。空気調和機は，室外に配設される室外ユニッ
トと，室内に配設される室内ユニットとを主要構成とし
ている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of an indoor unit of an air conditioner according to an embodiment, and FIG. 2 is a view showing a part of a transverse sectional view. FIG. 3 is a refrigerant circuit diagram of the air conditioner. The air conditioner mainly has an outdoor unit disposed outdoors and an indoor unit disposed indoors.
【００１７】室外ユニットには，冷媒を圧縮する圧縮機
１１，冷媒と外気との熱交換を行う室外熱交換器１２，
冷媒を減圧又は絞る流量調整可能な主減圧装置１３，冷
媒を主減圧装置１３に流すか否かを制御するバイパス弁
１５等を有している。The outdoor unit includes a compressor 11 for compressing the refrigerant, an outdoor heat exchanger 12 for exchanging heat between the refrigerant and the outside air,
It has a main pressure reducing device 13 capable of adjusting the flow rate for reducing or reducing the refrigerant, a bypass valve 15 for controlling whether or not the refrigerant flows into the main pressure reducing device 13, and the like.
【００１８】室内ユニットの正面パネルには正面吸込口
３１，上面パネルには上面吸込口３２，下面パネルには
吐出口３４がそれぞれ設けられ，その内部には室内空気
と冷媒とを熱交換させる室内熱交換器２１〜２４，ドラ
イ運転時に冷媒を減圧又は絞る除湿用減圧装置２５，室
内空気を室内熱交換器２１〜２４を介して吸気して，空
気調和された空気を室内に吐出すファン３３が設けられ
ている。A front suction port 31 is provided on the front panel of the indoor unit, an upper suction port 32 is provided on the upper panel, and a discharge port 34 is provided on the lower panel. Inside the room, heat is exchanged between the room air and the refrigerant. The heat exchangers 21 to 24, the dehumidifying decompression device 25 for decompressing or reducing the refrigerant during the dry operation, and the fan 33 for sucking indoor air through the indoor heat exchangers 21 to 24 and discharging the air-conditioned air into the room. Is provided.
【００１９】室内熱交換器２１〜２４は，図１，図２に
も示すように，第１熱交換器である熱交換器２２，２
３，第２熱交換器である熱交換器２４，第３熱交換器で
ある熱交換器２１とにより構成されている。As shown in FIGS. 1 and 2, the indoor heat exchangers 21 to 24 are heat exchangers 22 and 2 which are first heat exchangers.
3, a heat exchanger 24 as a second heat exchanger and a heat exchanger 21 as a third heat exchanger.
【００２０】第１熱交換器は，室内ユニットをコンパク
ト化するため熱交換器２２，２３に分割され，熱交換器
２３は正面吸込口３１側に，また熱交換器２２は正面吸
込口２２及び上面吸込口３２に渡ってファン３３を囲む
ように配設されて，冷房運転時及びドライ運転時には蒸
発器，暖房運転時には凝縮器として作用する。The first heat exchanger is divided into heat exchangers 22 and 23 in order to make the indoor unit compact. The heat exchanger 23 is on the front suction port 31 side, and the heat exchanger 22 is on the front suction port 22 and 23. It is arranged so as to surround the fan 33 over the upper surface suction port 32, and functions as an evaporator during the cooling operation and the dry operation and as a condenser during the heating operation.
【００２１】また，第２熱交換器である熱交換器２４
は，熱交換器２３とファン３３とが最も接近している部
分，即ち熱交換器２３を通過する空気量が最も多い所に
設けられて，冷房運転時には蒸発器，暖房運転時には凝
縮器，ドライ運転時には再熱器として作用している。Further, the heat exchanger 24 as the second heat exchanger
Is provided at the portion where the heat exchanger 23 and the fan 33 are closest to each other, that is, where the amount of air passing through the heat exchanger 23 is the largest. During operation, it acts as a reheater.
【００２２】さらに，第３熱交換器である熱交換器２１
は，上面吸込口３２側に設けられて，冷房運転時には蒸
発器，暖房運転時には凝縮器，ドライ運転時には再熱器
として作用している。Further, a heat exchanger 21 as a third heat exchanger
Is provided on the upper surface suction port 32 side, and functions as an evaporator during a cooling operation, as a condenser during a heating operation, and as a reheater during a dry operation.
【００２３】このとき，熱交換器２２〜２４は同じ横幅
に形成されているが，熱交換器２１の横幅はこれらより
短く形成されて，その時にできる空間に除湿用減圧装置
２５が配設されている。これにより室内ユニットのコン
パクト化を促進している。At this time, the heat exchangers 22 to 24 are formed to have the same width, but the width of the heat exchanger 21 is made shorter than these, and a dehumidifying decompression device 25 is provided in a space formed at that time. ing. This promotes a compact indoor unit.
【００２４】なお，この空間を十分に確保できる場合に
は，主減圧装置１３及びバイパス弁１５も当該空間内に
設けてもよい。If this space can be sufficiently secured, the main pressure reducing device 13 and the bypass valve 15 may be provided in the space.
【００２５】次に詳細な構成を動作説明しながら説明す
る。冷房運転時にはバイパス弁１５は閉じられ，主減圧
装置１３は所定量開弁し，また除湿用減圧装置２５は全
開されて，冷媒は４方弁１６により実線矢印で示す方向
に循環する。Next, a detailed configuration will be described while explaining the operation. During the cooling operation, the bypass valve 15 is closed, the main pressure reducing device 13 is opened by a predetermined amount, the dehumidifying pressure reducing device 25 is fully opened, and the refrigerant is circulated by the four-way valve 16 in the direction indicated by the solid line arrow.
【００２６】また，室内ユニットに吸込まれる室内空気
は，上面吸込口３２よりも正面吸込口３１から多く吸込
まれる。そのため第３熱交換器２１を通過する室内空気
は第１熱交換器２２，２３を通過する室内空気よりも少
ないので，この第３熱交換器２１を短くすることで空気
調和の能力を大幅に低下させることなく室内ユニットの
コンパクト化が促進できる。Further, more indoor air is sucked into the indoor unit from the front suction port 31 than from the top suction port 32. Therefore, the amount of room air passing through the third heat exchanger 21 is smaller than the amount of room air passing through the first heat exchangers 22 and 23. Therefore, shortening the third heat exchanger 21 greatly enhances the air conditioning performance. The indoor unit can be made compact without lowering.
【００２７】そして，圧縮機１１で圧縮されてホットガ
スとなった冷媒は，室外熱交換器１２に供給され，当該
室外熱交換器１２で外気と熱交換して凝縮する。このと
き，バイパス弁１５は閉じられているので，凝縮した冷
媒は，主減圧装置１３で減圧又は絞られて低温ガスとな
って室内ユニットに供給されるようになる。The refrigerant that has been compressed by the compressor 11 to become a hot gas is supplied to the outdoor heat exchanger 12, where the refrigerant exchanges heat with outside air and condenses. At this time, since the bypass valve 15 is closed, the condensed refrigerant is decompressed or throttled by the main decompression device 13 to be supplied to the indoor unit as low-temperature gas.
【００２８】室内ユニットに供給された冷媒は，熱交換
器２１，２４，２３，２２を順次流れる。このとき，除
湿用減圧装置２５は全開されてるので，熱交換器２４を
経てきた冷媒はそのまま熱交換器２２，２３に供給さ
れ，圧縮機１１に戻って１サイクルが終了する。The refrigerant supplied to the indoor unit flows through the heat exchangers 21, 24, 23 and 22 sequentially. At this time, since the dehumidifying decompression device 25 is fully opened, the refrigerant that has passed through the heat exchanger 24 is directly supplied to the heat exchangers 22 and 23, returns to the compressor 11, and one cycle ends.
【００２９】従って，熱交換器２１〜２４は全て蒸発器
として作用して，吸込まれた空気を効率よく冷却するこ
とができる。Therefore, all of the heat exchangers 21 to 24 function as evaporators, and can efficiently cool the sucked air.
【００３０】暖房運転時には，バイパス弁１５は閉じら
れ，主減圧装置１３は所定量開弁し，また除湿用減圧装
置２５は全開されて，冷媒は４方弁１６により点線矢印
で示す方向に循環する。During the heating operation, the bypass valve 15 is closed, the main pressure reducing device 13 is opened by a predetermined amount, the dehumidifying pressure reducing device 25 is fully opened, and the refrigerant is circulated by the four-way valve 16 in the direction indicated by the dotted arrow. I do.
【００３１】そして，圧縮機１１からのホットガスは，
室内ユニットの熱交換器２２，２３に順次供給され，除
湿用減圧装置２５を経て熱交換器２４，２１を順次循環
する。The hot gas from the compressor 11 is
The heat is sequentially supplied to the heat exchangers 22 and 23 of the indoor unit and sequentially circulates through the heat exchangers 24 and 21 via the dehumidifying decompression device 25.
【００３２】除湿用減圧装置２５は全開されているの
で，全ての熱交換器２１〜２４は凝縮器として作用す
る。Since the depressurizing device 25 for dehumidification is fully opened, all the heat exchangers 21 to 24 function as condensers.
【００３３】この場合，冷媒は，熱交換器２２，２３，
２４，２１を順次循環するので，熱交換器２１，２４よ
り熱交換器２２，２３の方が暖かくなる。In this case, the refrigerant is supplied to the heat exchangers 22, 23,
Since the heat exchangers 24 and 21 are sequentially circulated, the heat exchangers 22 and 23 are warmer than the heat exchangers 21 and 24.
【００３４】従って，熱交換器２３を通過して暖められ
た空気は，熱交換器２４に熱を奪われるようになるが，
熱交換器２２を通過して暖められた空気はこのように熱
を奪われることがないので，その分本格再熱方式に比べ
て暖房効率を向上させることが可能になる。Therefore, the air heated through the heat exchanger 23 is deprived of heat by the heat exchanger 24.
Since the air heated through the heat exchanger 22 is not deprived of heat in this way, it is possible to improve the heating efficiency as compared with the full-scale reheating system.
【００３５】また，熱交換器２２を通過する空気は通過
後直ちにファン３３を介して室内に吐出されるので，そ
の分本格再熱方式に比べ流路抵抗を小さくすることが可
能になっている。Further, since the air passing through the heat exchanger 22 is discharged into the room via the fan 33 immediately after the passage, the flow path resistance can be reduced by that much as compared with the full-scale reheating system. .
【００３６】ドライ運転時には，バイパス弁１５は全開
されると共に，主減圧装置１３は全閉され，また除湿用
減圧装置２５は所定量開弁されて，冷媒は４方弁１６に
より一点鎖線の矢印で示す方向に循環する。At the time of the dry operation, the bypass valve 15 is fully opened, the main pressure reducing device 13 is fully closed, the dehumidifying pressure reducing device 25 is opened by a predetermined amount, and the refrigerant is supplied by the four-way valve 16 by a dashed line arrow. Circulates in the direction indicated by.
【００３７】そして，圧縮機１１からホットガスとなっ
た冷媒は，室外熱交換器１２で外気と熱交換して凝縮
し，バイパス弁１５を介して熱交換器２１，２４に順次
供給される。The refrigerant that has become hot gas from the compressor 11 exchanges heat with the outside air in the outdoor heat exchanger 12 to be condensed, and is sequentially supplied to the heat exchangers 21 and 24 via the bypass valve 15.
【００３８】熱交換器２４からの冷媒は除湿用減圧装置
２５で略断熱膨張されて低温の液とガスの混合状態の冷
媒となり熱交換器２３，２４に順次供給される。The refrigerant from the heat exchanger 24 is substantially adiabatically expanded in the dehumidifying decompression device 25, becomes a refrigerant in a mixed state of a low-temperature liquid and a gas, and is sequentially supplied to the heat exchangers 23 and 24.
【００３９】これにより，熱交換器２３を通過して冷却
除湿された冷気は，熱交換器２４を通過することにより
暖められる。一方，熱交換器２２を通過した空気は冷却
除湿されて冷気となり，また熱交換器２１を通過した空
気は暖められて暖気となる。Thus, the cold air that has passed through the heat exchanger 23 and has been cooled and dehumidified is warmed by passing through the heat exchanger 24. On the other hand, the air that has passed through the heat exchanger 22 is cooled and dehumidified to become cool air, and the air that has passed through the heat exchanger 21 is warmed and becomes warm air.
【００４０】従って，ファン３３には温度の高い熱交換
器２１からの暖気と，温度の低い熱交換器２２からの冷
気と，温度が略室温の熱交換器２４からの空気とが層を
なして吸い込まれるので効率的にミキシングすることが
できる。Therefore, the warm air from the heat exchanger 21 having a high temperature, the cool air from the heat exchanger 22 having a low temperature, and the air from the heat exchanger 24 having a temperature substantially at room temperature form a layer in the fan 33. So that mixing can be performed efficiently.
【００４１】特に，当該ファン３３は，各熱交換器２１
〜２４の長手方向に延びたクロスフローファンであるた
め，層を成す３種類の空気を当該層に垂直方向にミキシ
ングするのでミキシング効果を高くすることができる。In particular, the fan 33 is connected to each heat exchanger 21.
Since the cross flow fan extends in the longitudinal direction of the layer, the three types of air forming a layer are mixed in the layer in the vertical direction, so that the mixing effect can be enhanced.
【００４２】よって，エアーミックス方式の場合に比べ
均一温度の空気を室内に送風することが可能になり，快
適なドライ運転が可能になる。Therefore, it becomes possible to blow air having a uniform temperature into the room as compared with the case of the air-mix system, and a comfortable dry operation becomes possible.
【００４３】[0043]
【発明の効果】以上説明したように，請求項１にかかる
発明によれば，室内ユニットに冷媒を減圧又は絞る減圧
装置を設け，また室内熱交換器を少なくとも２以上の熱
交換器により形成し，その内の１の熱交換器の横幅を他
の熱交換器より短くして，そのときにできる空間に減圧
装置を配設するようにしたので，室内ユニットをコンパ
クト化することが可能になると共に，暖房効率等を低下
させることなく効率的に除湿運転が行えるようになる。As described above, according to the first aspect of the present invention, the indoor unit is provided with a pressure reducing device for reducing or reducing the refrigerant, and the indoor heat exchanger is formed by at least two or more heat exchangers. Since the width of one of the heat exchangers is shorter than that of the other heat exchangers and the pressure reducing device is arranged in the space created at that time, the indoor unit can be made compact. At the same time, the dehumidifying operation can be performed efficiently without lowering the heating efficiency and the like.
【００４４】請求項２にかかる発明によれば，除湿運転
時に，蒸発器として作用する第１熱交換器，再熱器とし
て作用する第２熱交換器及び第３熱交換器とにより室内
熱交換器を形成し，当該第３熱交換器が第１及び第２熱
交換器より横幅が短く設定されて減圧装置の配設空間を
形成したので，室内ユニットをコンパクト化することが
可能になると共に，暖房効率等を低下させることなく効
率的に除湿運転が行えるようになる。According to the second aspect of the invention, during the dehumidifying operation, indoor heat exchange is performed by the first heat exchanger acting as an evaporator, the second heat exchanger acting as a reheater, and the third heat exchanger. Since the third heat exchanger has a smaller width than the first and second heat exchangers to form a space for disposing the pressure reducing device, the indoor unit can be made compact. Thus, the dehumidifying operation can be performed efficiently without lowering the heating efficiency and the like.
【００４５】請求項３にかかかる発明によれば，除湿運
転時に第１熱交換器を蒸発器として作用させ，第２及び
第３熱交換器を再熱器として作用させる除湿用減圧装置
を第３熱交換器と並べて配設したので，室内ユニットを
コンパクト化することが可能になると共に，暖房効率等
を低下させることなく効率的に除湿運転が行えるように
なる。According to the third aspect of the present invention, there is provided a dehumidifying decompression device in which the first heat exchanger functions as an evaporator and the second and third heat exchangers function as reheaters during the dehumidifying operation. Since the three heat exchangers are arranged side by side, the indoor unit can be made compact, and the dehumidifying operation can be performed efficiently without lowering the heating efficiency and the like.
【図１】本発明の実施の形態の説明に適用される室内ユ
ニットの断面図である。FIG. 1 is a cross-sectional view of an indoor unit applied to an embodiment of the present invention.
【図２】室内ユニットの部分横断面図である。FIG. 2 is a partial cross-sectional view of the indoor unit.
【図３】冷媒回路である。FIG. 3 is a refrigerant circuit.
１１ 圧縮機 １２ 室外熱交換器 １３ 主減圧装置 １５ バイパス弁 ２１ 熱交換器（第３熱交換器） ２２，２３ 熱交換器（第１熱交換器） ２４ 熱交換器（第２熱交換器） ２５ 除湿用減圧装置 ３１ 前面吸気口 ３２ 上面吸気口 ３３ ファン ３４ 吐出口 DESCRIPTION OF SYMBOLS 11 Compressor 12 Outdoor heat exchanger 13 Main decompression device 15 Bypass valve 21 Heat exchanger (3rd heat exchanger) 22, 23 Heat exchanger (1st heat exchanger) 24 Heat exchanger (2nd heat exchanger) 25 Dehumidifying decompression device 31 Front intake port 32 Top intake port 33 Fan 34 Discharge port
フロントページの続き (72)発明者 冨賀見 有吾 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内Continuation of the front page (72) Inventor Yugo Tomami 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.
Claims (3)
交換器と，室内から空気を吸気して前記室内熱交換器を
通過させた後室内に吹出すファンとを備えた室内ユニッ
トとを有した空気調和機において，前記室内ユニット
が，冷媒を減圧又は絞る減圧装置を備え，かつ，前記室
内熱交換器が，少なくとも２以上の熱交換器からなると
共に，その内の１の熱交換器の横幅が他の熱交換器より
短く設定されて，当該横幅を短く設定したことにより形
成される空間に前記減圧装置を並設したことを特徴とす
る空気調和機。1. An indoor unit including an indoor heat exchanger for exchanging heat between a refrigerant and indoor air, and a fan that draws air from the room, passes the indoor heat exchanger, and then blows the air into the room. In the air conditioner, the indoor unit includes a decompression device for decompressing or reducing the refrigerant, and the indoor heat exchanger includes at least two or more heat exchangers, and one of the heat exchangers is included. An air conditioner characterized in that the width of the air conditioner is set shorter than that of the other heat exchangers, and the pressure reducing device is arranged in a space formed by setting the width to be shorter.
空気を吸気する吸気口が設けられると共に，前記室内熱
交換器が前面に設けた前記吸気口に対向して配設され
て，除湿運転時には蒸発器として作用する第１熱交換器
と，該第１熱交換器の風下側に配設されて，除湿運転時
には再熱器として作用する第２熱交換器と，前記第１熱
交換器に隣接すると共に，上面に設けられた前記吸込口
に沿って配設されて，除湿運転時には再熱器として作用
する第３熱交換器とからなり，かつ，当該第３熱交換器
が前記第１及び第２熱交換器より横幅が短く設定されて
前記減圧装置の配設空間を形成してなることを特徴とす
る請求項１記載の空気調和機。2. An air inlet for taking in indoor air is provided on a front surface and an upper surface of the indoor unit, and the indoor heat exchanger is arranged to face the air inlet provided on a front surface of the indoor unit. A first heat exchanger acting as an evaporator, a second heat exchanger disposed downstream of the first heat exchanger and acting as a reheater during a dehumidifying operation, and a first heat exchanger. A third heat exchanger that is adjacent and disposed along the suction port provided on the upper surface and acts as a reheater during the dehumidifying operation, and the third heat exchanger is the first heat exchanger. 2. The air conditioner according to claim 1, wherein a width of the air conditioner is set shorter than that of the second heat exchanger to form a space in which the pressure reducing device is disposed.
熱交換器を蒸発器として作用させ，前記第２及び第３熱
交換器を再熱器として作用させる除湿用減圧装置である
ことを特徴とする請求項１又は２記載の空気調和機。3. The first decompression device according to claim 1, wherein said decompression device operates during a dehumidifying operation.
The air conditioner according to claim 1 or 2, wherein the air conditioner is a dehumidifying decompression device in which a heat exchanger functions as an evaporator and the second and third heat exchangers function as a reheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05908998A JP3276918B2 (en) | 1998-02-25 | 1998-02-25 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05908998A JP3276918B2 (en) | 1998-02-25 | 1998-02-25 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11241836A true JPH11241836A (en) | 1999-09-07 |
| JP3276918B2 JP3276918B2 (en) | 2002-04-22 |
Family
ID=13103276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05908998A Expired - Fee Related JP3276918B2 (en) | 1998-02-25 | 1998-02-25 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3276918B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336857A (en) * | 2002-05-15 | 2003-11-28 | Daikin Ind Ltd | Indoor machine for air conditioner |
| JP2008121995A (en) * | 2006-11-13 | 2008-05-29 | Fujitsu General Ltd | Air conditioner |
| JP2013231544A (en) * | 2012-04-27 | 2013-11-14 | Fujitsu General Ltd | Air conditioner |
| WO2020103580A1 (en) * | 2018-11-19 | 2020-05-28 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
-
1998
- 1998-02-25 JP JP05908998A patent/JP3276918B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336857A (en) * | 2002-05-15 | 2003-11-28 | Daikin Ind Ltd | Indoor machine for air conditioner |
| CN1294386C (en) * | 2002-05-15 | 2007-01-10 | 大金工业株式会社 | Indoor unit for air conditioner |
| JP2008121995A (en) * | 2006-11-13 | 2008-05-29 | Fujitsu General Ltd | Air conditioner |
| JP2013231544A (en) * | 2012-04-27 | 2013-11-14 | Fujitsu General Ltd | Air conditioner |
| WO2020103580A1 (en) * | 2018-11-19 | 2020-05-28 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3276918B2 (en) | 2002-04-22 |
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