JPH06137633A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH06137633A JPH06137633A JP4290043A JP29004392A JPH06137633A JP H06137633 A JPH06137633 A JP H06137633A JP 4290043 A JP4290043 A JP 4290043A JP 29004392 A JP29004392 A JP 29004392A JP H06137633 A JPH06137633 A JP H06137633A
- Authority
- JP
- Japan
- Prior art keywords
- indoor
- air
- temperature
- indoor heat
- heat exchangers
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、室内の２方向に空調
用空気を吹出すツインフロータイプの空気調和機に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a twin flow type air conditioner which blows air for air conditioning in two directions inside a room.
【０００２】[0002]
【従来の技術】室内の大形リビング傾向に対処し、２方
向吹出しによって室内の良好な温度分布を確保するよう
にしたツインフロータイプの空気調和機がある。2. Description of the Related Art There is a twin-flow type air conditioner which copes with the tendency of a large living room in a room and secures a good temperature distribution in the room by blowing in two directions.
【０００３】この空気調和機は、天井面に取付けられる
室内ユニット、この室内ユニットに設けられる２つの室
内熱交換器、これら室内熱交換器に室内空気を循環させ
るための２つの室内ファンを備え、各室内熱交換器を経
た空調用空気を室内の２方向に吹出すようになってい
る。This air conditioner comprises an indoor unit mounted on the ceiling surface, two indoor heat exchangers provided in this indoor unit, and two indoor fans for circulating indoor air through these indoor heat exchangers. Air for air conditioning that has passed through each indoor heat exchanger is blown out in two directions inside the room.
【０００４】このツインフロータイプに限らず一般の空
気調和機でもそうであるが、室内熱交換器に温度センサ
を取付けて熱交換器温度を検知し、その検知温度に応じ
て室内ファンの風量を調節し、暖房時の高圧側圧力の異
常上昇を防ぐとともに、同じく暖房時の冷風吹出を防ぐ
ものがある。また、冷房時の室内熱交換器の凍結防止を
図るものがある。Not only this twin flow type but also a general air conditioner, a temperature sensor is attached to the indoor heat exchanger to detect the temperature of the heat exchanger, and the air volume of the indoor fan is adjusted according to the detected temperature. There is one that is adjusted to prevent an abnormal rise in the high-pressure side pressure during heating, and also to prevent cold air from blowing out during heating. In addition, there is a measure to prevent freezing of the indoor heat exchanger during cooling.
【０００５】[0005]
【発明が解決しようとする課題】ツインフロータイプの
空気調和機のように室内熱交換器が２つあるものでは、
適切な風量制御が難しい。[Problems to be Solved by the Invention] In a twin-flow type air conditioner having two indoor heat exchangers,
Proper air volume control is difficult.
【０００６】この発明は上記の事情を考慮してなされた
もので、その目的とするところは、室内熱交換器が２つ
あっても、それにかかわらず、適切な風量制御を可能と
する空気調和機を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide an air conditioner capable of controlling an appropriate air volume regardless of the number of indoor heat exchangers provided. To provide a machine.
【０００７】[0007]
【課題を解決するための手段】この発明は、室内ユニッ
トに設けられる２つの室内熱交換器、これら室内熱交換
器に室内空気を循環させるための２つの室内ファンを備
え、各室内熱交換器を経た空調用空気を室内の２方向に
吹出す空気調和機において、上記各室内熱交換器の温度
を検知する２つの温度センサと、これら温度センサの検
知温度のうちいずれか一方を運転モードに応じて選択す
る手段と、この選択される検知温度に応じて機器の運転
状態を制御する手段とを設ける。SUMMARY OF THE INVENTION The present invention comprises two indoor heat exchangers provided in an indoor unit, two indoor fans for circulating indoor air through these indoor heat exchangers, and each indoor heat exchanger. In an air conditioner that blows air for air conditioning through two directions in a room, either one of two temperature sensors that detect the temperature of each indoor heat exchanger and one of the detected temperatures of these temperature sensors is set to an operation mode. There is provided a means for selecting according to the detected temperature and a means for controlling the operating state of the device according to the selected detected temperature.
【０００８】[0008]
【作用】２つの室内熱交換器の温度が２つの温度センサ
で検知され、これら温度センサの検知温度のうちいずれ
か一方が運転モードに応じて選択される。この選択され
る検知温度に応じて、機器が制御される。The temperatures of the two indoor heat exchangers are detected by the two temperature sensors, and one of the temperatures detected by these temperature sensors is selected according to the operation mode. The device is controlled according to the selected detected temperature.
【０００９】[0009]
【実施例】以下、この発明の一実施例について図面を参
照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１および図２において、１は被空調室内
で、天井面１ａに室内ユニット１０が埋込み状態で取付
けられる。この室内ユニット１０は、天井面１ａと同一
面をなす下面部の中央に吸込口１１を有し、その吸込口
１１の両側に吹出口１２ａ，１２ｂを有する。In FIGS. 1 and 2, reference numeral 1 designates an air-conditioned room, in which an indoor unit 10 is mounted on a ceiling surface 1a in an embedded state. This indoor unit 10 has a suction port 11 at the center of a lower surface portion that is flush with the ceiling surface 1a, and has blowout ports 12a and 12b on both sides of the suction port 11.
【００１１】室内ユニット１０の内周面に沿って断熱材
１３が設けられ、その断熱材１３の内側の空間が立位状
態の仕切板１４によって左右方向に２分割される。こう
して、室内ユニット１０内において、吸込口１１から吹
出口１２ａにかけて通風路１５ａが形成され、吸込口１
１から吹出口１２ｂにかけて通風路１５ｂが形成され
る。吸込口１１の内側にフィルタ１６が取付けられる。A heat insulating material 13 is provided along the inner peripheral surface of the indoor unit 10, and a space inside the heat insulating material 13 is divided into two in the left-right direction by a partition plate 14 in a standing position. Thus, in the indoor unit 10, the ventilation path 15a is formed from the suction port 11 to the air outlet 12a.
An air passage 15b is formed from 1 to the outlet 12b. A filter 16 is attached to the inside of the suction port 11.
【００１２】通風路１５ａに、室内熱交換器１７ａおよ
び室内ファン１８ａが設けられる。通風路１５ｂに、室
内熱交換器１７ｂおよび室内ファン１８ｂが設けられ
る。室内熱交換器１７ａ，１７ｂにそれぞれ熱交換器温
度センサ１９ａ，１９ｂが取付けられる。An indoor heat exchanger 17a and an indoor fan 18a are provided in the ventilation passage 15a. An indoor heat exchanger 17b and an indoor fan 18b are provided in the ventilation passage 15b. Heat exchanger temperature sensors 19a and 19b are attached to the indoor heat exchangers 17a and 17b, respectively.
【００１３】室内ファン１８ａが運転オンすると、室内
空気が吸込口１１およびフィルタ１６を通して通風路１
５ａに吸込まれ、それが室内熱交換器１７ａを通り、空
調用空気となって吹出口１２ａから室内１に吹出され
る。室内ファン１８ｂが運転オンすると、室内空気が吸
込口１１およびフィルタ１６を通して通風路１５ｂに吸
込まれ、それが室内熱交換器１７ｂを通り、空調用空気
となって吹出口１２ｂから室内１に吹出される。吹出口
１２ａの吹出風は、室内１のゾーンＡの方向に向かう。
吹出口１２ｂの吹出風は、室内１のゾーンＢの方向に向
かう。冷凍サイクルおよび制御回路の構成を図３に示
す。When the operation of the indoor fan 18a is turned on, the indoor air passes through the suction port 11 and the filter 16 and the ventilation passage 1
5a is sucked in, passes through the indoor heat exchanger 17a, becomes air for air conditioning, and is blown out into the room 1 from the air outlet 12a. When the indoor fan 18b is turned on, the indoor air is sucked into the ventilation passage 15b through the suction port 11 and the filter 16, passes through the indoor heat exchanger 17b, becomes air for air conditioning, and is blown into the room 1 from the air outlet 12b. It The air blown from the air outlet 12a is directed toward the zone A in the room 1.
The air blown from the air outlet 12b is directed toward the zone B in the room 1. The structure of the refrigeration cycle and the control circuit is shown in FIG.
【００１４】圧縮機２１の吐出口が四方弁２２を介して
室外熱交換器２３に接続される。この室外熱交換器２３
が膨張弁２４を介して室内熱交換器１７ａ，１７ｂに接
続される。室内熱交換器１７ａ，１７ｂが四方弁２２を
介して圧縮機２１の吸込口に接続される。室外熱交換器
２３の近傍に室外ファン２５が設けられる。The discharge port of the compressor 21 is connected to the outdoor heat exchanger 23 via the four-way valve 22. This outdoor heat exchanger 23
Is connected to the indoor heat exchangers 17a and 17b via the expansion valve 24. The indoor heat exchangers 17 a and 17 b are connected to the suction port of the compressor 21 via the four-way valve 22. An outdoor fan 25 is provided near the outdoor heat exchanger 23.
【００１５】冷房運転時は、圧縮機２１の吐出冷媒が図
示実線矢印の方向に流れて冷房サイクルが形成され、室
外熱交換器２３が凝縮器、室内熱交換器１７ａ，１７ｂ
が蒸発器として働く。暖房運転時は、圧縮機２１の吐出
冷媒が図示破線矢印の方向に流れて暖房サイクルが形成
され、室内熱交換器１７ａ，１７ｂが凝縮器、室外熱交
換器２３が蒸発器として働く。３０は制御部で、マイク
ロコンピュータおよびその周辺回路からなる。この制御
部３０は降圧用のトランス３１を介して商用交流電源３
２に接続される。During the cooling operation, the refrigerant discharged from the compressor 21 flows in the direction of the solid line arrow in the drawing to form a cooling cycle, and the outdoor heat exchanger 23 is the condenser and the indoor heat exchangers 17a and 17b.
Acts as an evaporator. During the heating operation, the refrigerant discharged from the compressor 21 flows in the direction of the broken line arrow to form a heating cycle, and the indoor heat exchangers 17a and 17b function as condensers and the outdoor heat exchanger 23 functions as an evaporator. A control unit 30 is composed of a microcomputer and its peripheral circuits. This control unit 30 uses a transformer 31 for step-down voltage to commercial AC power supply 3
Connected to 2.
【００１６】制御部３０に、熱交換器温度センサ１９
ａ，１９ｂ、四方弁２２、室外ファン２５、インバータ
回路３３、タップ切換回路３４ａ，３４ｂ、室内温度セ
ンサ３５、およびリモートコントロール式の運転操作器
（以下、リモコンと略称する）３６が接続される。The control unit 30 includes a heat exchanger temperature sensor 19
a, 19b, the four-way valve 22, the outdoor fan 25, the inverter circuit 33, the tap switching circuits 34a and 34b, the indoor temperature sensor 35, and the remote control type operation device (hereinafter, abbreviated as a remote controller) 36 are connected.
【００１７】インバータ回路３３は、電源３２の電圧を
整流し、それを制御部３０の指令に応じた周波数（およ
び電圧）の交流に変換し、出力する。この出力は圧縮機
２１のモータの駆動電力となる。タップ切換回路３４
ａ，３４ｂは、電源３２から室内ファンモータ１８ａ
Ｍ，１８ｂＭの各速度タップに対する通電切換を行な
う。リモコン３６は、運転条件を設定する機能のほか
に、上記したゾーンＡおよびゾーンＢのそれぞれ局部制
御モードのいずれか一方を選択するためのゾーン選択釦
３７ａ，３７ｂを有する。制御部３０は、次の機能手段
を備える。The inverter circuit 33 rectifies the voltage of the power source 32, converts it into an alternating current of a frequency (and voltage) according to a command from the control unit 30, and outputs it. This output becomes drive power for the motor of the compressor 21. Tap switching circuit 34
a and 34b are from the power source 32 to the indoor fan motor 18a.
Switching of energization for each speed tap of M and 18bM is performed. The remote controller 36 has zone selection buttons 37a and 37b for selecting one of the local control modes of the zone A and the zone B described above, in addition to the function of setting the operating condition. The control unit 30 includes the following functional means.
【００１８】（１）圧縮機２１の吐出冷媒を四方弁２
２、室外熱交換器２３、膨張弁２４、室内熱交換器１７
ａ，１７ｂ、および四方弁２２を通して圧縮機２１に戻
し、冷房運転を実行する手段。(1) The refrigerant discharged from the compressor 21 is supplied to the four-way valve 2
2, outdoor heat exchanger 23, expansion valve 24, indoor heat exchanger 17
Means for returning to the compressor 21 through a, 17b, and the four-way valve 22 to execute the cooling operation.
【００１９】（２）圧縮機２１の吐出冷媒を四方弁２
２、室内熱交換器１７ａ，１７ｂ、膨張弁２４、室外熱
交換器２３、および四方弁２２を通して圧縮機２１に戻
し、暖房運転を実行する手段。(2) The refrigerant discharged from the compressor 21 is supplied to the four-way valve 2
2. Means for returning to the compressor 21 through the indoor heat exchangers 17a and 17b, the expansion valve 24, the outdoor heat exchanger 23, and the four-way valve 22 to perform heating operation.
【００２０】（３）運転時、室内温度センサ３５の検知
温度（室内温度）Ｔａとリモコン３６での設定温度Ｔｓ
との差に応じてインバータ回路３３の出力周波数（圧縮
機２１の運転周波数）を制御する手段。(3) During operation, the detected temperature (indoor temperature) Ta of the indoor temperature sensor 35 and the set temperature Ts of the remote controller 36
Means for controlling the output frequency of the inverter circuit 33 (the operating frequency of the compressor 21) according to the difference between
【００２１】（４）リモコン３６のゾーン選択釦３７
ａ，３７ｂがいずれも操作されない通常制御モードで
は、室内ファン１８ａ，１８ｂの風量をリモコン３６の
操作に応じた互いに同じ値（強，弱，微の３段階）に設
定する手段。(4) Zone selection button 37 of remote controller 36
In the normal control mode in which neither a nor 37b is operated, a means for setting the air volumes of the indoor fans 18a and 18b to the same value (three levels of strong, weak, and slight) according to the operation of the remote controller 36.
【００２２】（５）ゾーン選択釦３７ａ，３７ｂの操作
に応じてゾーンＡ，Ｂのそれぞれ局部制御モードのいず
れか一方を選択し、それに応じて室内ファン１８ａ，１
８ｂの風量比率を変化させる手段。 （６）熱交換器温度センサ１９ａ，１９ｂの検知温度Ｔ
1 ，Ｔ2 のうちいずれか一方を運転モードに応じて選択
する手段。 （７）選択される検知温度に応じて室内ファン１８ａ，
１８ｂの風量を制御する手段。 つぎに、上記の構成の作用を説明する。(5) One of the local control modes of the zones A and B is selected in response to the operation of the zone selection buttons 37a and 37b, and the indoor fans 18a and 1 are selected accordingly.
A means for changing the air flow rate of 8b. (6) Temperature T detected by the heat exchanger temperature sensors 19a and 19b
Means to select either one of 1 and T 2 according to the operation mode. (7) The indoor fan 18a depending on the detected temperature selected,
A means for controlling the air volume of 18b. Next, the operation of the above configuration will be described.
【００２３】リモコン３６のゾーン選択釦３７ａ，３７
ｂがいずれも操作されない通常制御モードでは、室内フ
ァン１８ａ，１８ｂの風量がリモコン３６の操作に応じ
た互いに同じ値（強，弱，微の３段階）に設定される。Zone selection buttons 37a, 37 of the remote controller 36
In the normal control mode in which neither b is operated, the air volumes of the indoor fans 18a and 18b are set to the same value (three levels of strong, weak, and slight) according to the operation of the remote controller 36.
【００２４】すなわち、図４に示すように、リモコン３
６で風量“強”が設定されると、タップ切換回路３４
ａ，３４ｂにより、室内ファンモータ１８ａＭ，１８ｂ
Ｍの高速度タップ“Ｈ”に対する通電がなされる。これ
により、室内ファン１８ａ，１８ｂが高速度で回転し、
室内のゾーンＡおよびゾーンＢにそれぞれ多量の空調用
空気が吹出される。That is, as shown in FIG. 4, the remote controller 3
When the air volume "strong" is set in 6, the tap switching circuit 34
indoor fan motors 18aM, 18b by a, 34b
The high speed tap "H" of M is energized. As a result, the indoor fans 18a and 18b rotate at a high speed,
A large amount of air for air conditioning is blown to each of the zone A and the zone B in the room.
【００２５】風量“弱”が設定されると、中速度タップ
“Ｍ”に対する通電がなされ、室内ファン１８ａ，１８
ｂが中速度で回転する。風量“微”が設定されると低速
度タップ“Ｌ”に対する通電がなされ、室内ファン１８
ａ，１８ｂが低速度で回転する。この通常制御モードに
おけるゾーンＡ，Ｂに対する風量レベルをベクトル量と
して図２に太線矢印で示している。ゾーン選択釦３７
ａ，３７ｂのいずれかが押圧操作されると、局部制御モ
ードに入り、室内ファン１８ａ，１８ｂの風量比率が変
化される。When the air volume "weak" is set, the medium speed tap "M" is energized, and the indoor fans 18a and 18a.
b rotates at medium speed. When the air volume "fine" is set, the low speed tap "L" is energized, and the indoor fan 18
a and 18b rotate at a low speed. The air flow level for the zones A and B in the normal control mode is shown as a vector quantity by a thick arrow in FIG. Zone selection button 37
When either a or 37b is pressed, the local control mode is entered and the air volume ratio of the indoor fans 18a and 18b is changed.
【００２６】たとえば、ゾーン選択釦３７ａが押圧操作
されると、ゾーンＡの局部制御モードに入り、室内ファ
ン１８ａの風量がリモコン３６の操作に応じた値よりも
αだけ増大され、残りの室内ファン１８ｂの風量がリモ
コン３６の操作に応じた値よりもβだけ削減される。For example, when the zone selection button 37a is pressed, the local control mode of the zone A is entered, the air volume of the indoor fan 18a is increased by α above the value according to the operation of the remote controller 36, and the remaining indoor fans are operated. The air volume of 18b is reduced by β from the value corresponding to the operation of the remote controller 36.
【００２７】すなわち、ゾーンＡの局部制御モードに入
ると、図５に示すように、リモコン３６で風量“強”が
設定されているとすれば、タップ切換回路３４ａによ
り、室内ファンモータ１８ａＭの超高速度タップ“Ｕ
Ｈ”に対する通電がなされる。これにより、室内ファン
１８ａが回転速度が高速度から超高速度に増し、ゾーン
Ａへの風量が増大される。また、タップ切換回路３４ｂ
によって室内ファンモータ１８ｂＭの中速度タップ“Ｍ
＋”に対する通電がなされ、これにより室内ファン１８
ｂの回転速度が高速度から中（上）速度に減り、ゾーン
Ｂへの風量が削減される。That is, when the local control mode of the zone A is entered, as shown in FIG. 5, assuming that the air volume "strong" is set by the remote controller 36, the tap switching circuit 34a causes the indoor fan motor 18aM to move over the air. High speed tap "U
The electric current is applied to H ″. As a result, the rotation speed of the indoor fan 18a is increased from a high speed to a super high speed, and the air volume to the zone A is increased.
By indoor fan motor 18bM middle speed tap "M
+ "Is energized, and as a result, the indoor fan 18
The rotation speed of b is reduced from the high speed to the middle (upper) speed, and the air volume to the zone B is reduced.
【００２８】リモコン３６で風量“弱”が設定されてい
る場合には、室内ファンモータ１８ａＭの中速度タップ
“Ｍ＋”に対する通電がなされ、室内ファン１８ａの回
転速度が中速度から中（上）速度に増し、ゾーンＡへの
風量が増大される。また、室内ファンモータ１８ｂＭの
中速度タップ“Ｍ−”に対する通電がなされ、室内ファ
ン１８ｂの回転速度が中速度から中（低）速度に減り、
ゾーンＢへの風量が削減される。When the air volume "weak" is set by the remote controller 36, the medium speed tap "M +" of the indoor fan motor 18aM is energized, and the rotation speed of the indoor fan 18a is changed from the medium speed to the middle (upper) speed. And the air volume to the zone A is increased. In addition, the medium speed tap "M-" of the indoor fan motor 18bM is energized, the rotation speed of the indoor fan 18b is reduced from the medium speed to the medium (low) speed,
The air volume to the zone B is reduced.
【００２９】リモコン３６で風量“微”が設定されてい
る場合には、室内ファンモータ１８ａＭの中速度タップ
“Ｍ−”に対する通電がなされ、室内ファン１８ａの回
転速度が低速度から中（低）速度に増し、ゾーンＡへの
風量が増大される。また、室内ファンモータ１８ｂＭの
低速度タップ“Ｌ−”に対する通電がなされ、室内ファ
ン１８ｂの回転速度が低速度から低（低）速度に減り、
ゾーンＢへの風量が削減される。When the air volume "fine" is set by the remote controller 36, the medium speed tap "M-" of the indoor fan motor 18aM is energized, and the rotation speed of the indoor fan 18a is changed from low to medium (low). The speed is increased, and the air volume to the zone A is increased. Further, the low speed tap "L-" of the indoor fan motor 18bM is energized, and the rotation speed of the indoor fan 18b is reduced from low speed to low (low) speed.
The air volume to the zone B is reduced.
【００３０】このゾーンＡの局部制御モードでの各ゾー
ンに対する風量レベルをベクトル量として図６に太線矢
印で示す。なお、ゾーンＢの局部制御モードが設定され
た場合は、同様の制御により、ゾーンＢへの風量が多く
なり、ゾーンＡへの風量が少なくなる。The air flow level for each zone in the local control mode of this zone A is shown as a vector quantity by a thick arrow in FIG. In addition, when the local control mode of the zone B is set, the air volume to the zone B increases and the air volume to the zone A decreases by the same control.
【００３１】このように、リモコン３６の操作で局部制
御モードを選択することができ、これにより室内ファン
１８ａ，１８ｂの風量比率を自由に変化させることがで
き、ゾーンＡ，Ｂのそれぞれ局部的な効率のよい空調が
可能である。たとえば、広いリビングルーム等におい
て、住人が部屋の片隅に居るような場合、その住人が居
るゾーンを主体とした空調が可能であり、冷暖房の立上
がりが早まるとともに、経済的である。また、室内ユニ
ット１０の取付け位置は天井面の中央部とするのが最適
であるが、家具の配置などの影響で取付け位置が天井面
の隅に制約されてしまうことがある。このような場合で
も、住人が居るゾーンを主体の快適空調が可能である。As described above, the local control mode can be selected by operating the remote controller 36, whereby the air flow rate of the indoor fans 18a and 18b can be freely changed, and the zones A and B are localized respectively. Efficient air conditioning is possible. For example, in a large living room or the like, when a resident is in one corner of the room, it is possible to perform air conditioning mainly in the zone in which the resident is located, which speeds up the heating and cooling and is economical. Further, the mounting position of the indoor unit 10 is optimally set to the central portion of the ceiling surface, but the mounting position may be restricted to a corner of the ceiling surface due to the arrangement of furniture or the like. Even in such a case, comfortable air conditioning mainly in the zone where the resident is present is possible.
【００３２】しかも、局部制御モードでは、選択ゾーン
への風量を増大する代わりに非選択ゾーンへの風量を削
減するので、圧縮機２１の能力を増大させることなく選
択ゾーンの能力を高めることができ、よってたとえば暖
房時に選択ゾーンの住人に冷風感を与えるなどの不具合
は生じない。また、圧縮機２１の能力を増大させなくて
すむので、省エネルギ効果が得られる。Moreover, in the local control mode, the air volume to the non-selected zone is reduced instead of increasing the air volume to the selected zone, so that the capacity of the selected zone can be increased without increasing the capacity of the compressor 21. Therefore, for example, a problem such as giving a cold air feeling to the residents in the selected zone during heating does not occur. Moreover, since it is not necessary to increase the capacity of the compressor 21, an energy saving effect can be obtained.
【００３３】一方、運転中は熱交換器温度センサ１９
ａ，１９ｂにより室内熱交換器１７ａ，１７ｂの温度Ｔ
1 ，Ｔ2 が検知され、その検知温度に応じて室内ファン
１８ａ，１８ｂの風量が制御される。この制御図７のフ
ローチャートに示す。On the other hand, during operation, the heat exchanger temperature sensor 19
The temperature T of the indoor heat exchangers 17a and 17b by a and 19b
1 and T 2 are detected, and the air volumes of the indoor fans 18a and 18b are controlled according to the detected temperatures. This control is shown in the flowchart of FIG. 7.
【００３４】まず、熱交換器温度センサ１９ａ，１９ｂ
の断線検知など、各センサが正常かどうか判定される。
各センサが共に正常であれば、検知温度Ｔ1 ，Ｔ2 のい
ずれか一方が運転モードに応じて選択され、その選択さ
れる検知温度に応じた風量制御が実行される。各センサ
のどちらかに異常があれば、正常な方の検知温度が選択
されて風量制御が実行される。以下、各センサが共に正
常であるとして説明を続ける。First, the heat exchanger temperature sensors 19a and 19b.
It is determined whether or not each sensor is normal, such as disconnection detection.
If both sensors are normal, one of the detection temperatures T 1 and T 2 is selected according to the operation mode, and the air volume control is executed according to the selected detection temperature. If there is an abnormality in either of the sensors, the normal detected temperature is selected and the air volume control is executed. Hereinafter, the description will be continued assuming that each sensor is normal.
【００３５】暖房運転モードでは、不快な冷風吹出を防
ぐべく、また高圧側圧力の異常上昇を防ぐべく、検知温
度Ｔ1 ，Ｔ2 のいずれか一方が選択され、それが凝縮器
温度Ｔとして取込まれる。In the heating operation mode, either one of the detection temperatures T 1 and T 2 is selected in order to prevent unpleasant cold air blowout and to prevent an abnormal increase in the high-pressure side pressure, which is taken as the condenser temperature T. Get caught.
【００３６】暖房開始時のように検知温度Ｔ1 ，Ｔ2 が
まだ低くて設定値Ｔ0 に達していない状況では、検知温
度Ｔ1 ，Ｔ2 のうち低い方が選択され、それが凝縮器温
度Ｔとして取込まれる。この凝縮器温度Ｔと冷風吹出防
止用の設定値Ｔｘとが比較され、ＴがＴｘよりも低けれ
ば、室内ファン１８ａ，１８ｂの速度タップが共に下げ
られる。In a situation where the detected temperatures T 1 and T 2 are still low and have not reached the set value T 0 , such as when heating is started, the lower one of the detected temperatures T 1 and T 2 is selected, which is the condenser. Captured as temperature T. This condenser temperature T is compared with a set value Tx for preventing cold air blowout, and if T is lower than Tx, both speed taps of the indoor fans 18a and 18b are lowered.
【００３７】このように検知温度Ｔ1 ，Ｔ2 のうち低い
方を凝縮器温度Ｔとして取込み、その凝縮器温度Ｔが設
定値Ｔｘを下回る場合は室内ファン１８ａ，１８ｂの風
量を共に削減することにより、不快な冷風吹出を確実に
防止できる。ところで、暖房運転では、風量の少ない方
の室内熱交換器の温度が上昇し、高圧側圧力の異常上昇
を招くことがある。As described above, the lower one of the detected temperatures T 1 and T 2 is taken in as the condenser temperature T, and when the condenser temperature T is lower than the set value Tx, both the air volumes of the indoor fans 18a and 18b are reduced. As a result, it is possible to reliably prevent unpleasant cold air blowing. By the way, in the heating operation, the temperature of the indoor heat exchanger with the smaller air volume may increase, which may cause an abnormal increase in the high-pressure side pressure.
【００３８】そこで、検知温度Ｔ1 ，Ｔ2 が設定値Ｔ0
以上に上昇した後で、検知温度Ｔ1，Ｔ2 のうち高い方
が選択され、それが凝縮器温度Ｔとして取込まれる。こ
の凝縮器温度Ｔと高圧側圧力に対する異常上昇防止用の
設定値Ｔｒとが比較され、ＴがＴｒよりも高ければ、圧
縮機２１の運転周波数（インバータ回路３３の出力周波
数）を低減するレリース制御が実行される。このレリー
ス制御に際しては、室内ファン１８ａ，１８ｂの速度タ
ップが共に上げられ、凝縮器温度Ｔの低減が促進され
る。つまり、高圧側圧力の異常上昇を速やかに抑制する
ことができる。また、冷房運転では、風量の少ない方の
室内熱交換器が温度下降し、その温度下降した室内熱交
換器が凍結する心配がある。Therefore, the detected temperatures T 1 and T 2 are set to the set value T 0.
After the temperature rises above, the higher one of the detected temperatures T 1 and T 2 is selected and taken as the condenser temperature T. The condenser temperature T is compared with a set value Tr for preventing an abnormal rise with respect to the high pressure, and if T is higher than Tr, a release control for reducing the operating frequency of the compressor 21 (output frequency of the inverter circuit 33). Is executed. In the release control, the speed taps of the indoor fans 18a and 18b are both raised, and the reduction of the condenser temperature T is promoted. That is, it is possible to quickly suppress the abnormal increase in the high-pressure side pressure. Further, in the cooling operation, there is a concern that the temperature of the indoor heat exchanger with the smaller air flow rate may drop and the indoor heat exchanger with the lowered temperature may freeze.
【００３９】そこで、冷房運転モードでは、室内熱交換
器１７ａ，１７ｂの凍結を防ぐべく、検知温度Ｔ1 ，Ｔ
2 のうち低い方が選択され、それが蒸発器温度Ｔとして
取込まれる。この蒸発器温度Ｔと凍結防止用の設定値Ｔ
ｚとが比較され、ＴがＴｚよりも低ければ、室内ファン
１８ａ，１８ｂの速度タップが共に上げられる。Therefore, in the cooling operation mode, in order to prevent freezing of the indoor heat exchangers 17a, 17b, the detected temperatures T 1 , T
The lower of the two is selected and is taken as the evaporator temperature T. This evaporator temperature T and set value T for freeze prevention
z is compared, and if T is lower than Tz, both speed taps of the indoor fans 18a and 18b are raised.
【００４０】このように検知温度Ｔ1 ，Ｔ2 のうち低い
方を蒸発器温度Ｔとして取込み、その凝縮器温度Ｔが設
定値Ｔｚを下回る場合は室内ファン１８ａ，１８ｂの風
量を共に増大することにより、室内熱交換器１７ａ，１
７ｂの凍結を確実に防止できる。In this way, the lower one of the detected temperatures T 1 and T 2 is taken in as the evaporator temperature T, and when the condenser temperature T is below the set value Tz, both the air volumes of the indoor fans 18a and 18b are increased. The indoor heat exchangers 17a, 1
The freezing of 7b can be reliably prevented.
【００４１】なお、上記実施例では、各センサのどちら
かに異常があれば、正常な方の検知温度を選択して風量
制御を実行するようにしたが、各センサのどちらかに異
常がある場合は速度タップを一定にして風量を固定化し
てもよい。In the above embodiment, if there is an abnormality in either of the sensors, the normal detected temperature is selected and the air volume control is executed, but there is an abnormality in either of the sensors. In that case, the air volume may be fixed by keeping the speed tap constant.
【００４２】上記実施例では、暖房時の冷風吹出防止制
御において、検知温度Ｔ1 ，Ｔ2 のうち低い方を選択し
て風量を制御したが、検知温度Ｔ1 ，Ｔ2 のそれぞれと
冷風吹出防止用の設定値Ｔｘとを比較し、これら比較結
果に応じて室内ファン１８ａ，１８ｂの風量を個別に制
御するようにしてもよい。In the above embodiment, in the cold air blowout prevention control during heating, the lower one of the detected temperatures T 1 and T 2 is selected to control the air volume, but the detected air temperature T 1 and T 2 and the cold air blowout are controlled. The prevention set value Tx may be compared, and the air volumes of the indoor fans 18a and 18b may be individually controlled according to the comparison results.
【００４３】上記実施例では、速度タップを切換えるこ
とで室内ファンの風量を変化させるようにしたが、たと
えば室内ファン駆動用のインバータ回路を設け、そのイ
ンバータ回路の出力周波数を制御することによって室内
ファンの風量を無段階に変化させる構成としてもよい。
上記実施例では、天井面に取付けるいわゆる天カセにつ
いて説明したが、それに限らず、２つの熱交換器を有す
る壁掛形にも応用できる。In the above embodiment, the air volume of the indoor fan is changed by switching the speed taps. However, for example, an indoor fan driving inverter circuit is provided and the output frequency of the inverter circuit is controlled to control the indoor fan. It is also possible to adopt a configuration in which the air flow rate is changed steplessly.
In the above-mentioned embodiment, the so-called top-casing attached to the ceiling surface has been described, but the present invention is not limited to this, and can be applied to a wall-mounted type having two heat exchangers.
【００４４】[0044]
【発明の効果】以上述べたようにこの発明によれば、２
つの室内熱交換器の温度を２つの温度センサで検知し、
これら温度センサの検知温度のうちいずれか一方を運転
モードに応じて選択し、この選択される検知温度に応じ
て機器を制御する構成としたので、室内熱交換器が２つ
あっても、それにかかわらず、適切な制御を可能とする
空気調和機を提供できる。As described above, according to the present invention, 2
The temperature of one indoor heat exchanger is detected by two temperature sensors,
Since one of the temperatures detected by these temperature sensors is selected according to the operation mode and the equipment is controlled according to the selected detection temperature, even if there are two indoor heat exchangers, Nevertheless, it is possible to provide an air conditioner that enables appropriate control.
【図１】この発明の一実施例における室内ユニットの内
部構成を断面して示す図。FIG. 1 is a cross-sectional view showing the internal structure of an indoor unit according to an embodiment of the present invention.
【図２】同実施例の室内ユニットと室内空間との関係を
示す図。FIG. 2 is a diagram showing a relationship between an indoor unit and an indoor space of the same embodiment.
【図３】同実施例の冷凍サイクルおよび制御回路の構成
図。FIG. 3 is a configuration diagram of a refrigeration cycle and a control circuit of the same embodiment.
【図４】同実施例の通常制御モードでの風量設定条件を
示す図。FIG. 4 is a diagram showing an air volume setting condition in a normal control mode of the embodiment.
【図５】同実施例の局部制御モードでの風量設定条件を
示す図。FIG. 5 is a diagram showing an air volume setting condition in a local control mode of the embodiment.
【図６】同実施例の局部制御モードでの室内ユニットと
室内空間との関係を示す図。FIG. 6 is a diagram showing a relationship between an indoor unit and an indoor space in a local control mode of the same embodiment.
【図７】同実施例の作用を説明するためのフローチャー
ト。FIG. 7 is a flowchart for explaining the operation of the embodiment.
１…室内、Ａ…ゾーン、Ｂ…ゾーン、１０…室内ユニッ
ト、１１…吸込口、１２ａ，１２ｂ…吹出口、１７ａ，
１７ｂ…室内熱交換器、１８ａ，１８ｂ…室内ファン、
１９ａ，１９ｂ…熱交換器温度センサ、３０…制御部。1 ... Indoor, A ... Zone, B ... Zone, 10 ... Indoor unit, 11 ... Suction port, 12a, 12b ... Air outlet, 17a,
17b ... indoor heat exchanger, 18a, 18b ... indoor fan,
19a, 19b ... Heat exchanger temperature sensor, 30 ... Control part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福長 英聡 静岡県富士市蓼原336番地 東芝エー・ブ イ・イー株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hidenori Fukunaga 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba ABY Co. Ltd.
Claims (4)
交換器、これら室内熱交換器に室内空気を循環させるた
めの２つの室内ファンを備え、各室内熱交換器を経た空
調用空気を室内の２方向に吹出す空気調和機において、
前記各室内熱交換器の温度を検知する２つの温度センサ
と、これら温度センサの検知温度のうちいずれか一方を
運転モードに応じて選択する手段と、この選択される検
知温度に応じて運転状態を制御する手段とを設けたこと
を特徴とする空気調和機。1. An indoor unit is provided with two indoor heat exchangers, two indoor fans for circulating indoor air through these indoor heat exchangers, and air for air conditioning through each indoor heat exchanger is supplied to the indoor unit. In an air conditioner that blows out in two directions,
Two temperature sensors for detecting the temperature of each of the indoor heat exchangers, a means for selecting one of the detected temperatures of the temperature sensors according to the operation mode, and an operating state according to the selected detected temperature. And a means for controlling the air conditioner.
交換器、これら室内熱交換器に室内空気を循環させるた
めの２つの室内ファンを備え、各室内熱交換器を経た空
調用空気を室内の２方向に吹出す空気調和機において、
前記各室内熱交換器の温度を検知する２つの温度センサ
と、暖房運転時、前記各温度センサの検知温度のうち高
い方の検知温度を選択する手段と、この選択される検知
温度に応じて運転状態を制御する手段とを設けたことを
特徴とする空気調和機。2. An indoor unit is provided with two indoor heat exchangers, two indoor fans for circulating indoor air through these indoor heat exchangers, and air for air conditioning through each indoor heat exchanger is supplied to the indoor unit. In an air conditioner that blows out in two directions,
Two temperature sensors that detect the temperature of each of the indoor heat exchangers, a unit that selects a higher detected temperature among the detected temperatures of the respective temperature sensors during heating operation, and a unit that selects the detected temperature according to the selected detected temperature. An air conditioner provided with means for controlling an operating state.
交換器、これら室内熱交換器に室内空気を循環させるた
めの２つの室内ファンを備え、各室内熱交換器を経た空
調用空気を室内の２方向に吹出す空気調和機において、
前記各室内熱交換器の温度を検知する２つの温度センサ
と、暖房運転時、前記各温度センサの検知温度が共に設
定値に達するまでは両検知温度のうち低い方を選択し、
両検知温度が共に設定値に達した後は両検知温度のうち
高い方を選択する手段と、この選択される検知温度に応
じて前記各室内ファンの風量を制御する手段とを設けた
ことを特徴とする空気調和機。3. An indoor unit is provided with two indoor heat exchangers, two indoor fans for circulating the indoor air through these indoor heat exchangers, and the air for air conditioning through each indoor heat exchanger is supplied to the indoor unit. In an air conditioner that blows out in two directions,
Two temperature sensors for detecting the temperature of each of the indoor heat exchangers, and during heating operation, the lower one of the two detected temperatures is selected until both the detected temperatures of the respective temperature sensors reach set values,
After both detected temperatures reach the set value, a means for selecting a higher one of the detected temperatures and a means for controlling the air volume of each indoor fan according to the selected detected temperature are provided. A characteristic air conditioner.
の室内ユニットに設けられる２つの室内熱交換器、これ
ら室内熱交換器に室内空気を循環させるための２つの室
内ファンを備え、各室内熱交換器を経た空調用空気を室
内の２方向に吹出す空気調和機において、前記各室内熱
交換器の温度を検知する２つの温度センサと、冷房運転
時、前記各温度センサの検知温度のうち低い方を選択す
る手段と、この選択される検知温度に応じて前記各室内
ファンの風量を制御する手段とを設けたことを特徴とす
る空気調和機。4. An indoor unit mounted on a ceiling surface, two indoor heat exchangers provided in the indoor unit, two indoor fans for circulating indoor air through these indoor heat exchangers, and each indoor heat exchange. In an air conditioner that blows out air-conditioning air that has passed through the air conditioner in two directions inside the room, the temperature sensor for detecting the temperature of each of the indoor heat exchangers and the temperature detected by each of the temperature sensors during cooling operation are the lowest. An air conditioner comprising means for selecting one of the two and means for controlling the air volume of each of the indoor fans according to the detected temperature selected.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29004392A JP3181111B2 (en) | 1992-10-28 | 1992-10-28 | Air conditioner |
| GB9322086A GB2272080B (en) | 1992-10-28 | 1993-10-26 | Air conditioning apparatus capable of operating in cooling mode and heating mode |
| CN93119558A CN1074521C (en) | 1992-10-28 | 1993-10-28 | Air conditioner |
| US08/142,143 US5467606A (en) | 1992-10-28 | 1993-10-28 | Air conditioning apparatus capable of operating in cooling mode and heating mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29004392A JP3181111B2 (en) | 1992-10-28 | 1992-10-28 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06137633A true JPH06137633A (en) | 1994-05-20 |
| JP3181111B2 JP3181111B2 (en) | 2001-07-03 |
Family
ID=17751048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29004392A Expired - Fee Related JP3181111B2 (en) | 1992-10-28 | 1992-10-28 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3181111B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100728350B1 (en) * | 2006-07-27 | 2007-06-13 | 주식회사 대우일렉트로닉스 | Airconditioner having apparatus for adjusting discharge direction |
| JP2007240109A (en) * | 2006-03-10 | 2007-09-20 | Denso Corp | Air conditioner |
| KR100784840B1 (en) * | 2006-05-26 | 2007-12-14 | 주식회사 대우일렉트로닉스 | Air conditioner with louver |
| US9599353B2 (en) | 2013-07-26 | 2017-03-21 | Whirlpool Corporation | Split air conditioning system with a single outdoor unit |
| CN112880021A (en) * | 2021-01-25 | 2021-06-01 | 珠海格力电器股份有限公司 | Control device and method of air conditioner and air conditioner |
-
1992
- 1992-10-28 JP JP29004392A patent/JP3181111B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007240109A (en) * | 2006-03-10 | 2007-09-20 | Denso Corp | Air conditioner |
| JP4736872B2 (en) * | 2006-03-10 | 2011-07-27 | 株式会社デンソー | Air conditioner |
| US7997331B2 (en) | 2006-03-10 | 2011-08-16 | Denso Corporation | Air-conditioning system |
| KR100784840B1 (en) * | 2006-05-26 | 2007-12-14 | 주식회사 대우일렉트로닉스 | Air conditioner with louver |
| KR100728350B1 (en) * | 2006-07-27 | 2007-06-13 | 주식회사 대우일렉트로닉스 | Airconditioner having apparatus for adjusting discharge direction |
| US9599353B2 (en) | 2013-07-26 | 2017-03-21 | Whirlpool Corporation | Split air conditioning system with a single outdoor unit |
| US9970667B2 (en) | 2013-07-26 | 2018-05-15 | Whirlpool Corporation | Air conditioning systems with multiple temperature zones from independent ducting systems and a single outdoor unit |
| US10180257B2 (en) | 2013-07-26 | 2019-01-15 | Whirlpool Corporation | Air conditioning systems for at least two rooms using a single outdoor unit |
| CN112880021A (en) * | 2021-01-25 | 2021-06-01 | 珠海格力电器股份有限公司 | Control device and method of air conditioner and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3181111B2 (en) | 2001-07-03 |
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