JPH0621698B2 - Control method of heat pump type air conditioner - Google Patents
Control method of heat pump type air conditionerInfo
- Publication number
- JPH0621698B2 JPH0621698B2 JP1162782A JP16278289A JPH0621698B2 JP H0621698 B2 JPH0621698 B2 JP H0621698B2 JP 1162782 A JP1162782 A JP 1162782A JP 16278289 A JP16278289 A JP 16278289A JP H0621698 B2 JPH0621698 B2 JP H0621698B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- air
- compressor
- switching
- blown
- 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.)
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Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はヒートポンプ式空気調和機の制御方法に関す
る。TECHNICAL FIELD The present invention relates to a control method for a heat pump type air conditioner.
（従来の技術） 圧縮機の運転・停止により室温を制御するとともに自動
的に冷房運転又は暖房運転に切り換えられる従来のヒー
トポンプ式空気調和機においては、第４図に示すよう
に、その運転開始時、室温、即ち、ヒートポンプ式空気
調和機に吸込まれる吸込空気の温度が室温設定値Ｔｓよ
り高ければ、冷房運転が選択され、室温が室温設定値Ｔ
ｓより低ければ暖房運転が選択される。(Prior Art) In a conventional heat pump type air conditioner that controls the room temperature by operating / stopping the compressor and automatically switches to cooling operation or heating operation, as shown in FIG. , at room temperature, i.e., the higher the temperature of the suction air sucked into the heat pump type air conditioner than the temperature setting value T s, the cooling operation is selected, the room temperature is room temperature set value T
If it is lower than s , heating operation is selected.
そして、第３図に示すように、空気調和機の運転開始時
における室温が室温設定値Ｔｓよりα１deg 高い温度Ａ
１以上であれば、その圧縮機がONとなって冷房運転が開
始され、温度Ａ１以下であれば、圧縮機はOFF 、即ち、
停止したままに保たれる。Then, as shown in FIG. 3, a temperature A at which the room temperature at the start of operation of the air conditioner is higher than the room temperature set value T s by α 1 deg.
If it is 1 or more, the compressor is turned on to start the cooling operation, and if the temperature is A 1 or less, the compressor is turned off, that is,
It is kept stopped.
冷房運転を継続することによって室温が次第に下降し、
室温設定値Ｔｓよりβ1dog低い温度Ｂ１に達すると、圧
縮機はOFF となって停止する。By continuing the cooling operation, the room temperature gradually drops,
When the temperature reaches B 1 which is β 1 dog lower than the room temperature set value T s , the compressor is turned off and stopped.
圧縮機の停止を継続することによって室温が次第に上昇
して温度Ａ１に達すると、再び圧縮機がONとなる。圧縮
機が停止中にも拘らず室温が低下して室温設定値Ｔｓよ
りγ１deg 低い温度Ｃ１に達すると、圧縮機がONとなっ
て自動的に暖房運転を開始する。When the room temperature gradually rises and reaches the temperature A 1 by continuing to stop the compressor, the compressor is turned on again. Even when the compressor is stopped, when the room temperature falls and reaches the temperature C 1 which is γ 1 deg lower than the room temperature set value T s , the compressor is turned on and the heating operation is automatically started.
空気調和機の運転開始時における室温が温度Ｃ１以下で
あれば、圧縮機がONとなって暖房運転が開始されるが、
温度Ｃ１以上であれば、圧縮機はOFF のままに保たれ
る。If the room temperature at the start of operation of the air conditioner is the temperature C 1 or less, the compressor is turned on and the heating operation is started,
If the temperature is C 1 or higher, the compressor is kept off.
暖房運転を継続することによって室温が次第に上昇して
室温設定値Ｔｓよりδ１deg 高い温度Ｄ１に達すると、
圧縮機はOFF となる。When the room temperature gradually rises by continuing the heating operation and reaches the temperature D 1 which is δ 1 deg higher than the room temperature set value T s ,
The compressor turns off.
圧縮機の停止を継続することによって室温が次第に下降
し、温度Ｃ１に達すると圧縮機は再びONとなる。By continuing to stop the compressor, the room temperature gradually decreases, and when the temperature reaches C 1 , the compressor turns on again.
圧縮機の停止中にも拘らず室温が上昇して温度Ａ１に達
すると、圧縮機がONとなり自動的に冷房運転を開始す
る。When the room temperature rises and reaches the temperature A 1 even when the compressor is stopped, the compressor is turned on and the cooling operation is automatically started.
なお、圧縮機の停止後、運転モードが頻繁に変らないよ
うにγ１＞β１、α１＞δ１に設定されている。Note that γ 1 > β 1 and α 1 > δ 1 are set so that the operation mode does not change frequently after the compressor is stopped.
（発明が解決しようとする課題） 上記従来のヒートポンプ式空気調和機において、その圧
縮機の運転停止後、このヒートポンプ式空気調和機に隣
接する他のヒートポンプ式空気調和機から吹き出される
吹出空気の温度の変化、窓の開閉、屋外の気温の変化等
の外乱により室温が急激に変化すると、運転モードが冷
房運転から暖房運転にまたはその逆に頻繁に切り換えら
れるという不具合があった。(Problems to be Solved by the Invention) In the above conventional heat pump type air conditioner, after the operation of the compressor is stopped, of the blown air blown out from another heat pump type air conditioner adjacent to this heat pump type air conditioner. When the room temperature suddenly changes due to disturbance such as temperature change, window opening / closing, and outdoor temperature change, the operation mode is frequently switched from cooling operation to heating operation or vice versa.
これに対処するため、運転モードが切り換えられる温度
Ｃ１、Ａ１と圧縮機が停止する温度Ｂ１、Ｄ１との温度
差を広げることが考慮されたが、これは圧縮機が運転を
開始する温度Ａ１、Ｃ１と圧縮機が停止する温度Ｂ１、
Ｄ１との温度差が広がるため、室温の変動巾が大きくな
り空調フィーリングを阻害するという不具合があった。In order to deal with this, it was considered to widen the temperature difference between the temperatures C 1 and A 1 at which the operation modes are switched and the temperatures B 1 and D 1 at which the compressor stops, which is because the compressor starts operation. The temperature A 1 and C 1 to be applied and the temperature B 1 at which the compressor is stopped,
Since the temperature difference from D 1 is widened, there is a problem that the fluctuation range of room temperature becomes large and the air conditioning feeling is hindered.
また、１台の空気調和機から吹き出された吹出空気を分
岐して異なる部屋毎に配設された複数の吹出口から各部
屋に吹き出し、各吹出口に設けられたダンパを各部屋毎
に設置した空気調和器からの指令により開閉することに
よって各部屋に吹き出される風量を増減して室温を制御
する場合には、上記従来の空気調和機のように吸込空気
温度により圧縮機の運転・停止を行うものにあっては、
室温を全く制御できないとともに各部屋毎に異なる室温
設定値が設定されても吸込空気温度如何によっては圧縮
機が停止してしまうので空気調和ができなくなるという
不具合があった。In addition, the air blown out from one air conditioner is branched and blown into each room from a plurality of air outlets arranged in different rooms, and a damper provided in each air outlet is installed in each room. When controlling the room temperature by increasing / decreasing the amount of air blown into each room by opening and closing according to the command from the air conditioner, the compressor is operated / stopped by the intake air temperature like the conventional air conditioner. For things that do
The room temperature cannot be controlled at all, and even if different room temperature set values are set for each room, the compressor stops depending on the suction air temperature, so that there is a problem that air conditioning cannot be performed.
（課題を解決するための手段） 本発明は上記課題を解決するために発明されたものであ
って、その要旨とするところは、空気調和機に吸込まれ
る吸込空気の温度を検出する吸込空気温度センサと、空
気調和機から吹出される吹出空気の温度を検出する吹出
空気温度センサと、吸込空気温度に応じて圧縮機を運転
・停止することにより空温を制御する吸込温度制御機構
と、吹出空気温度を一定に維持して吹出空気量及び圧縮
機の容量を増減することにより室温を制御する吹出温度
制御機構と、吸込空気温度に応じて運転モードを自動的
に切り換える機構を具えたヒートポンプ式空気調和機に
おいて、 この空気調和機の運転開始時における吸込空気温度が室
温設定値Ｔｓの高温側及び低温側にそれぞれ所定温度巾
ｘの範囲に亘って設定された送風運転域、この送風運転
域の高温側に設定された冷房運転域、上記送風運転域の
低温側に設定された暖房運転域のいずれに属するかによ
って運転モードを送風運転、冷房運転のいずれかに決定
し、 圧縮機の運転開始を吸込空気温度と吸込空気温度設定値
Ａ、Ｃ、Ｆ、Ｈとの比較により制御するとともに上記圧
縮機の停止を吹出空気温度と吹出空気温度設定値Ｂ、Ｄ
との比較により制御し、 冷房運転から送風運転に切換えるための送風運転切換温
度Ｅを冷房運転時において圧縮機が停止したときの吹出
空気温度Ｂより任意の温度差βを隔ててその低温側に、
暖房運転から送風運転に切換えるための送風運転切換温
度Ｇを暖房運転時において圧縮機が停止したときの吹出
空気温度Ｄより任意の温度差δを隔ててその高温側にそ
れぞれ設定し、 送風運転への切換後冷房運転に切換えるための温度Ｈを
冷房運転時において圧縮機を運転するための吸込空気温
度Ａ及び上記送風運転切換温度Ｇより高温側に、送風運
転への切換後暖房運転に切換えるための温度Ｆを暖房運
転時において圧縮機を運転するための吸込空気温度Ｃ及
び上記送風運転切換温度Ｅより低温側にそれぞれ設定し
たことを特徴とするヒートポンプ式空気調和機の制御方
法にある。(Means for Solving the Problems) The present invention has been invented to solve the above problems, and its gist is to provide suction air for detecting the temperature of suction air sucked into an air conditioner. A temperature sensor, a blown air temperature sensor that detects the temperature of blown air blown from the air conditioner, and a suction temperature control mechanism that controls the air temperature by operating and stopping the compressor according to the suction air temperature, A heat pump with a blowout temperature control mechanism that controls the room temperature by keeping the blowout air temperature constant and increasing or decreasing the blowout air amount and the capacity of the compressor, and a mechanism that automatically switches the operating mode according to the intake air temperature. in formula air conditioner, feed intake air temperature at the start of operation of the air conditioner is set over each of the high temperature side and the low temperature side of the temperature setting value T s in the range of the predetermined temperature width x Depending on whether it belongs to the operating range, the cooling operating range set on the high temperature side of this blowing operating range, or the heating operating range set on the low temperature side of the blowing operating range, the operation mode is set to either the blowing operating mode or the cooling operating mode. The start of operation of the compressor is controlled by comparing the intake air temperature with the intake air temperature set values A, C, F, H, and the stop of the compressor is controlled by the blown air temperature and the blown air temperature set values B, D.
The blower operation switching temperature E for switching from the cooling operation to the blower operation is controlled to a lower temperature side by an arbitrary temperature difference β from the blown air temperature B when the compressor is stopped during the cooling operation. ,
The air-blowing operation switching temperature G for switching from the heating operation to the air-blowing operation is set on the high temperature side with an arbitrary temperature difference δ apart from the blown-air temperature D when the compressor is stopped during the heating operation, and then the air-blowing operation is started. In order to switch the temperature H for switching to the cooling operation after switching to a temperature higher than the intake air temperature A for operating the compressor during the cooling operation and the blowing operation switching temperature G, and for switching to the heating operation after switching to the blowing operation. In the control method of the heat pump type air conditioner, the temperature F is set to a temperature lower than the intake air temperature C for operating the compressor during the heating operation and the blower operation switching temperature E.
（実施例） 以下、第１図及び第２図を参照しながら本発明を具体的
に説明する。(Example) Hereinafter, the present invention will be specifically described with reference to FIGS. 1 and 2.
第２図に示すように、室温設定値Ｔｓの高温側及び低温
側にそれぞれ所定温度巾ｘの送風運転域が設定され、こ
の送風運転域の高温側に冷房運転域が、低温側に暖房運
転域がそれぞれ設定されている。As shown in FIG. 2, a blower operation range having a predetermined temperature width x is set on each of the high temperature side and the low temperature side of the room temperature set value T s , and the cooling operation range is on the high temperature side and the heating is on the low temperature side. Each operating range is set.
ヒートポンプ式空気調和機の運転開始時、室温、即ち、
ヒートポンプ式空気調和機に吸入される吸込空気の温
度、即ち、吸込空気温度が送風運転域、冷房運転域、暖
房運転域のいずれに入るかによって運転モードが決定さ
れる。At the start of operation of the heat pump type air conditioner, at room temperature, that is,
The operating mode is determined by the temperature of the intake air drawn into the heat pump type air conditioner, that is, whether the intake air temperature falls within the blowing operation range, the cooling operation range, or the heating operation range.
冷房運転モードに決定された場合、室温が、第１図に示
すように、室温設定値Ｔｓよりα deg高い温度Ａ以上で
あれば、圧縮機がONとなって冷房運転をし、この時点か
ら吹出空気温度制御に移行する。When the cooling operation mode is determined and the room temperature is equal to or higher than the temperature A higher than the room temperature set value T s by α deg as shown in FIG. 1, the compressor is turned on to perform the cooling operation. To the blown air temperature control.
吹出空気温度制御とは空気調和機から吹き出される吹出
空気の温度を任意に設定された吹出空気設定温度（例え
ば、冷房運転時には13〜15℃、暖房運転時には40〜45
℃）になるように圧縮機の容量、即ち、冷媒循環量を制
御すると同時に吹出空気の風量を増減して冷暖房能力を
制御する。この際の冷暖房能力は次式で表される。What is blown air temperature control? The temperature of blown air blown out from an air conditioner is set to a preset blown air temperature (for example, 13 to 15 ° C during cooling operation, 40 to 45 during heating operation).
The capacity of the compressor, that is, the refrigerant circulation amount is controlled so that the temperature becomes ℃), and at the same time, the cooling / heating capacity is controlled by increasing / decreasing the air amount of the blown air. The cooling / heating capacity at this time is expressed by the following equation.
冷暖房能力≒吹出空気風量×（室温−吹出空気温度） しかし、室温が温度Ａ以下であれば圧縮機はOFFのまま
に保たれる。Cooling / heating capacity ≒ blown air volume x (room temperature-blowing air temperature) However, if the room temperature is below the temperature A, the compressor is kept off.
冷房運転中、吹出空気温度が下降して温度Ｂ（この温度
は室温設定値Ｔｓとは無関係に定められ固定されていな
い。）に達すると、圧縮機はOFF となる。During cooling operation, the temperature B outlet air temperature is lowered (this temperature is not fixed defined independently of the room temperature setting value T s.) Is reached, the compressor is turned OFF.
圧縮機の停止を継続することによって室温が上昇して温
度Ａに達すれば、圧縮機がONとなり冷房運転が再開され
る。しかし、室温が温度Ａと温度Ｂの間にある限り圧縮
機はOFF のままに保たれる。When the room temperature rises and reaches the temperature A by continuing the stop of the compressor, the compressor is turned on and the cooling operation is restarted. However, as long as the room temperature is between temperature A and temperature B, the compressor remains off.
圧縮機が停止中にも拘らず室温が下降して温度Ｅ（温度
Ｂよりβ deg低い温度）に達すると、運転モードは自動
的に冷房運転から送風運転に切り換わる。When the room temperature drops and reaches the temperature E (temperature lower than the temperature B by β deg) even when the compressor is stopped, the operation mode is automatically switched from the cooling operation to the blowing operation.
送風運転モードにおいては、ヒートポンプ式空気調和機
の圧縮機は運転されず送風機のみが運転されるので、ヒ
ートポンプ式空気調和機に吸い込まれた空気の温度と等
しい温度の空気が室内に吹き出される。In the blow operation mode, the compressor of the heat pump type air conditioner is not operated and only the blower is operated, so that the air having the temperature equal to the temperature of the air sucked into the heat pump type air conditioner is blown into the room.
送風運転中、室温が上昇して、温度Ｈ（室温設定値Ｔｓ
よりε deg高い温度）に達すれば運転モードは自動的に
送風運転から冷房運転に切り換わると同時に圧縮機がON
となり、吹出空気温度制御に移行する。逆に室温が下降
して温度Ｆ（室温設定値Ｔｓよりζ deg低い温度）に達
すれば、運転モードが自動的に送風運転から暖房運転に
切り換わると同時に圧縮機がONとなり、吹出空気温度制
御に移行する。なお、温度Ｅが温度Ｆより低い場合に
は、温度Ｅで運転モードが自動的に送風運転から暖房運
転に切り換わると同時に圧縮機がONとなる。During the blowing operation, the room temperature rises and the temperature H (room temperature set value T s
When it reaches a temperature higher than ε deg), the operation mode automatically switches from the air blowing operation to the cooling operation, and at the same time the compressor turns on.
Then, the control shifts to the blown air temperature control. Once you reach Conversely lowered from room temperature to a temperature F (room temperature setting value T s than zeta deg low temperature), the operation mode is automatically switched from the blowing operation in the heating operation switched simultaneously compressor is turned ON, the outlet air temperature Transfer to control. When the temperature E is lower than the temperature F, the compressor is turned on at the same time as the operation mode is automatically switched from the blowing operation to the heating operation at the temperature E.
ヒートポンプ式空気調和機の運転開始時、暖房運転モー
ドに決定された場合、室温が温度Ｃ（室温設定値Ｔｓよ
りγ deg低い温度）以下であれば、圧縮機はONとなって
暖房運転を開始し、この時点から吹出空気温度制御に移
行する。しかし、室温が温度Ｃ以上であれば、圧縮機は
OFF のままに保たれる。At the start of operation of the heat pump type air conditioner, if it is determined in the heating operation mode, if the room temperature C is (gamma deg temperature lower than room temperature set value T s) following the compressor heating operation becomes ON The operation is started, and the blown air temperature control is started from this point. However, if the room temperature is above C, the compressor
It is kept off.
暖房運転中、吹出空気温度が上昇して温度Ｄ（この温度
は室温設定値Ｔｓとは無関係に定められ固定されていな
い）に達すると、圧縮機はOFF となる。During heating operation, when the outlet air temperature reaches elevated to a temperature D (this temperature is not fixed defined independently of the room temperature setting value T s), the compressor is turned OFF.
圧縮機の停止を継続することによって、室温が温度Ｄよ
り下降して温度Ｃに達すれば圧縮機はONとなり暖房運転
が再開される。しかし、室温が温度Ｃと温度Ｄとの間に
ある限り圧縮機はOFF のままに保たれる。If the room temperature falls below the temperature D and reaches the temperature C by continuing to stop the compressor, the compressor is turned on and the heating operation is restarted. However, as long as the room temperature is between temperature C and temperature D, the compressor remains off.
圧縮機が停止中にも拘らず室温が上昇して温度Ｇ（温度
Ｄよりδdeg 高い温度）に達すると、運転モードは暖房
運転から送風運転に自動的に切り換えられる。なお、温
度Ｇが温度Ｈより高い場合には温度Ｇで運転モードが自
動的に暖房運転から冷房運転に切り変わると同時に圧縮
機がONとなる。When the room temperature rises and reaches the temperature G (a temperature higher by δ deg than the temperature D) despite the compressor being stopped, the operation mode is automatically switched from the heating operation to the air blowing operation. When the temperature G is higher than the temperature H, the operation mode is automatically switched from the heating operation to the cooling operation at the temperature G, and at the same time, the compressor is turned on.
（発明の効果） 本発明においては、圧縮機の停止後、室温が外乱等によ
り一時的に変化しても送風運転切換温度Ｅ、Ｇを圧縮機
の停止温度Ｂ、Ｄより任意の温度差β、δを隔てて設定
したため、冷房運転と暖房運転とが頻繁に切換えられる
のを防止できる。(Effects of the Invention) In the present invention, after the compressor is stopped, even if the room temperature temporarily changes due to disturbance or the like, the blowing operation switching temperatures E and G are set to an arbitrary temperature difference β from the compressor stop temperatures B and D. , Δ are set separately, it is possible to prevent frequent switching between the cooling operation and the heating operation.
また、本発明においては、圧縮機の運転開始を吸込空気
温度と吸込空気温度設定値Ａ、Ｃ、Ｆ、Ｈとの比較によ
り制御し、圧縮機の停止を吹出空気温度と吹出空気温度
設定値Ｂ、Ｄとの比較により制御したので、吹出空気温
度制御によって室温を制御する場合においてもよい正確
な室温制御が可能となる。Further, in the present invention, the operation start of the compressor is controlled by comparing the intake air temperature and the intake air temperature set values A, C, F, H, and the stop of the compressor is controlled by the blown air temperature and the blown air temperature set value. Since the temperature is controlled by comparison with B and D, it is possible to perform accurate room temperature control which is good even when the room temperature is controlled by controlling the blown air temperature.
また、本発明においては、冷房運転から送風運転に切り
換えるための送風運転切変温度Ｅを冷房運転時において
圧縮機が停止したときの吹出空気温度Ｂより任意の温度
差βを隔ててその低温側に、暖房運転から送風運転に切
換えるための送風運転切換温度Ｇを暖房運転時において
圧縮機が停止したときの吹出空気温度Ｄより任意の温度
差δを隔ててその高温側にそれぞれ設定したため、圧縮
機の停止直後に暖房運転モード又は冷房運転モードで圧
縮機が運転されるのを防止できる。Further, in the present invention, the blowing operation cut-off temperature E for switching from the cooling operation to the blowing operation is separated by an arbitrary temperature difference β from the blown air temperature B when the compressor is stopped during the cooling operation, and its low temperature side. In addition, since the blower operation switching temperature G for switching from the heating operation to the blower operation is set to the high temperature side with an arbitrary temperature difference δ apart from the blown air temperature D when the compressor is stopped during the heating operation, It is possible to prevent the compressor from being operated in the heating operation mode or the cooling operation mode immediately after the stop of the machine.
更に、本発明においては、送風運転への切換後冷房運転
に切換えるための温度Ｈを冷房運転時において圧縮機を
運転するための吸込空気温度Ａ及び送風運転切換温度Ｇ
より高温側に、送風運転への切換後暖房運転に切り換え
るための温度Ｆを暖房運転時において圧縮機を運転する
ための吸込空気温度Ｃ及び上記送風運転切換温度Ｅより
低温側にそれぞれ設定したため、圧縮機の運転を開始す
るための吸込空気温度Ａ、Ｃと室温設定値Ｔｓとの温度
差を小さくでき、従ってより正確な室温制御が可能とな
る。Further, in the present invention, the temperature H for switching to the cooling operation after switching to the blowing operation, the suction air temperature A for operating the compressor during the cooling operation, and the blowing operation switching temperature G.
Since the temperature F for switching to the heating operation after switching to the blowing operation is set to a higher temperature side to be lower than the intake air temperature C for operating the compressor during the heating operation and the blowing operation switching temperature E, respectively, The temperature difference between the intake air temperatures A and C for starting the operation of the compressor and the room temperature set value T s can be reduced, and thus more accurate room temperature control can be performed.
また、本発明においては、冷房運転から送風運転に切り
換えるための送風運転切換温度を冷房運転時において圧
縮機を停止させるための吹出空気温度より任意の温度差
を持ってその低温側に、暖房運転から送風運転に切換え
るための送風運転切換温度を暖房運転時において圧縮機
を停止させるための吹出空気温度より任意の温度差を持
ってその高温側にそれぞれ設定したため、圧縮機の停止
直後に暖房運転モード又は冷房運転モードで圧縮機が運
転されるのを防止できる。Further, in the present invention, the blowing operation switching temperature for switching from the cooling operation to the blowing operation has an arbitrary temperature difference from the blown air temperature for stopping the compressor during the cooling operation, and the heating operation is performed on the lower temperature side. The temperature of the air-blowing operation for switching from the air-conditioning to the air-blowing operation is set to the high temperature side with an arbitrary temperature difference from the temperature of the blown air to stop the compressor during the heating operation, so the heating operation is performed immediately after the compressor stops. It is possible to prevent the compressor from operating in the cooling mode or the cooling operation mode.
更に、圧縮機の停止後冷房運転に切換えるための温度を
冷房運転時において圧縮機を運転するための吸込空気温
度及び上記送風運転切換温度より高温側に、圧縮機の停
止後暖房運転に切換えるための温度を暖房運転時におい
て圧縮機を運転するための吸込空気温度及び上記送風運
転切換温度より低温側にそれぞれ設定したため、圧縮機
を運転するための吸込空気温度と室温設定値Ｔｓとの温
度差を小さくでき、従って、より正確な室温制御が可能
となる。Furthermore, in order to switch the temperature for switching to the cooling operation after stopping the compressor to a temperature higher than the intake air temperature for operating the compressor during the cooling operation and the above-mentioned blow operation switching temperature, to switch to the heating operation after stopping the compressor. The temperature of the intake air temperature for operating the compressor during the heating operation and the temperature of the intake air temperature for operating the compressor and the room temperature set value T s are set to be lower than the blower operation switching temperature. The difference can be reduced, and thus more accurate room temperature control can be performed.
第１図及び第２図は本発明の方法の一例を示し、第１図
は室温と運転モード及び圧縮機のON・OFFとの関係を示す
説明図、第２図は室温と運転モードとの関係を示す説明
図である。 第３図及び第４図は従来の方法を示し、第３図は室温と
運転モード及び圧縮機のON・OFFとの関係を示す説明図、
第４図は室温と運転モードとの関係を示す説明図であ
る。FIGS. 1 and 2 show an example of the method of the present invention, FIG. 1 is an explanatory diagram showing the relationship between room temperature and the operating mode and ON / OFF of the compressor, and FIG. 2 is the room temperature and the operating mode. It is explanatory drawing which shows a relationship. 3 and 4 show a conventional method, and FIG. 3 is an explanatory view showing the relationship between room temperature, operation mode and ON / OFF of the compressor,
FIG. 4 is an explanatory diagram showing the relationship between room temperature and operation mode.
フロントページの続き (72)発明者 羽田野 健 東京都港区元赤坂１丁目２番７号 鹿島建 設株式会社内 (72)発明者 鈴木 寛 愛知県西春日井郡西枇杷島町字旭町３丁目 １番地 三菱重工業株式会社エアコン製作 所内 (72)発明者 小林 幸雄 愛知県西春日井郡西枇杷島町字旭町３丁目 １番地 三菱重工業株式会社エアコン製作 所内 (56)参考文献 特開 昭54−78850（ＪＰ，Ａ)Front page continued (72) Inventor Ken Hatano 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Hiroshi Suzuki 3-chome, Asahi-cho, Nishibiwajima-cho, Nishikasugai-gun, Aichi prefecture Mitsubishi Heavy Industries, Ltd. Air Conditioning Factory (72) Inventor Yukio Kobayashi 3-1, Asahimachi, Nishibiwajima-cho, Nishikasugai-gun, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Air Conditioning Factory (56) Reference JP 54-78850 (JP, A) )
Claims (1)
検出する吸込空気温度センサと、空気調和機から吹出さ
れる吹出空気の温度を検出する吹出空気温度センサと、
吸込空気温度に応じて圧縮機を運転・停止することによ
り空温を制御する吸込温度制御機構と、吹出空気温度を
一定に維持して吹出空気量及び圧縮機の容量を増減する
ことにより室温を制御する吹出温度制御機構と、吸込空
気温度に応じて運転モードを自動的に切り換える機構を
具えたヒートポンプ式空気調和機において、 この空気調和機の運転開始時における吸込空気温度が室
温設定値Ｔｓの高温側及び低温側にそれぞれ所定温度巾
ｘの範囲に亘って設定された送風運転域、この送風運転
域の高温側に設定された冷房運転域、上記送風運転域の
低温側に設定された暖房運転域のいずれに属するかによ
って運転モードを送風運転、冷房運転又は暖房運転のい
ずれかに決定し、 圧縮機の運転開始を吸込空気温度と吸込空気温度設定値
Ａ、Ｃ、Ｆ、Ｈとの比較により制御するとともに上記圧
縮機の停止を吹出空気温度と吹出空気温度設定値Ｂ、Ｄ
との比較により制御し、 冷房運転から送風運転に切換えるための送風運転切換温
度Ｅを冷房運転時において圧縮機が停止したときの吹出
空気温度Ｂより任意の温度差βを隔ててその低温側に、
暖房運転から送風運転に切換えるための送風運転切換温
度Ｇを暖房運転時において圧縮機が停止したときの吹出
空気温度Ｄより任意の温度差δを隔ててその高温側にそ
れぞれ設定し、 送風運転への切換後冷房運転に切換えるための温度Ｈを
冷房運転時において圧縮機を運転するための吸込空気温
度Ａ及び上記送風運転切換温度Ｇより高温側に、送風運
転への切換後暖房運転に切換えるための温度Ｆを暖房運
転時において圧縮機を運転するための吸込空気温度Ｃ及
び上記送風運転切換温度Ｅより低温側にそれぞれ設定し
たことを特徴とするヒートポンプ式空気調和機の制御方
法。1. A suction air temperature sensor for detecting a temperature of suction air sucked into an air conditioner, and a blown air temperature sensor for detecting a temperature of blown air blown out from the air conditioner.
A suction temperature control mechanism that controls the air temperature by operating and stopping the compressor according to the suction air temperature, and a room temperature by keeping the blowout air temperature constant and increasing or decreasing the blown air amount and the compressor capacity. In a heat pump type air conditioner equipped with a blow-out temperature control mechanism for controlling and a mechanism for automatically switching operation modes in accordance with the intake air temperature, the intake air temperature at the start of operation of this air conditioner has a room temperature set value T s. Of the blower operation range set to a high temperature side and a low temperature side of a predetermined temperature width x, a cooling operation range set to the high temperature side of the blower operation range, and a low temperature side of the blower operation range. Depending on which of the heating operation areas it belongs to, the operation mode is determined to be either the blow operation, the cooling operation, or the heating operation, and the operation start of the compressor is the intake air temperature and the intake air temperature set values A, C, The outlet air temperature to stop the compressor and the outlet air temperature set point to control by comparison with H B, D
The blower operation switching temperature E for switching from the cooling operation to the blower operation is controlled to a lower temperature side by an arbitrary temperature difference β from the blown air temperature B when the compressor is stopped during the cooling operation. ,
The air-blowing operation switching temperature G for switching from the heating operation to the air-blowing operation is set to the high temperature side with an arbitrary temperature difference δ apart from the blown-air temperature D when the compressor is stopped during the heating operation, and then the air-blowing operation is started. In order to switch the temperature H for switching to the cooling operation after switching to a temperature higher than the intake air temperature A for operating the compressor during the cooling operation and the blowing operation switching temperature G, and for switching to the heating operation after switching to the blowing operation. Is set to a temperature lower than the intake air temperature C for operating the compressor and the blower operation switching temperature E during the heating operation, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1162782A JPH0621698B2 (en) | 1989-06-27 | 1989-06-27 | Control method of heat pump type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1162782A JPH0621698B2 (en) | 1989-06-27 | 1989-06-27 | Control method of heat pump type air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0328649A JPH0328649A (en) | 1991-02-06 |
| JPH0621698B2 true JPH0621698B2 (en) | 1994-03-23 |
Family
ID=15761107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1162782A Expired - Lifetime JPH0621698B2 (en) | 1989-06-27 | 1989-06-27 | Control method of heat pump type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621698B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2508306B2 (en) * | 1989-10-30 | 1996-06-19 | ダイキン工業株式会社 | Operation control device for air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5478850A (en) * | 1977-12-07 | 1979-06-23 | Hitachi Ltd | Temperature control circuit for air conditioner |
-
1989
- 1989-06-27 JP JP1162782A patent/JPH0621698B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0328649A (en) | 1991-02-06 |
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