JPH0480562A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH0480562A JPH0480562A JP19249890A JP19249890A JPH0480562A JP H0480562 A JPH0480562 A JP H0480562A JP 19249890 A JP19249890 A JP 19249890A JP 19249890 A JP19249890 A JP 19249890A JP H0480562 A JPH0480562 A JP H0480562A
- Authority
- JP
- Japan
- Prior art keywords
- heating
- refrigerant
- amount
- heating amount
- changing
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 168
- 239000003507 refrigerant Substances 0.000 claims abstract description 103
- 230000003247 decreasing effect Effects 0.000 claims abstract description 19
- 230000007423 decrease Effects 0.000 claims abstract description 7
- 238000005057 refrigeration Methods 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000013021 overheating Methods 0.000 abstract description 13
- 230000006866 deterioration Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000001052 transient effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 230000000254 damaging effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、冷媒加熱装置を具備した空気調和機に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioner equipped with a refrigerant heating device.
従来の技術
従来の冷媒加熱装置を具備した空気調和機としてはたと
えば第３図に示すように構成されたものが知られている
。以下、図面に基づき説明すると、圧縮機１、四方弁２
、室内熱交換機３、減圧器４、第１の逆止弁５、室外熱
交換器６、第２の逆止弁７が環状に連結され、室内熱交
換器３と減圧器４との間から圧縮機１の吸入側へ二方弁
８を介して冷媒加熱装置９が接続されている。また、冷
媒循環量調節機構として圧縮機１の吐出側と吸入側を膨
張弁１０を介したバイパス回路で結んでいる。2. Description of the Related Art As a conventional air conditioner equipped with a refrigerant heating device, one constructed as shown in FIG. 3, for example, is known. Below, the explanation will be based on the drawings: compressor 1, four-way valve 2
, an indoor heat exchanger 3, a pressure reducer 4, a first check valve 5, an outdoor heat exchanger 6, and a second check valve 7 are connected in an annular manner. A refrigerant heating device 9 is connected to the suction side of the compressor 1 via a two-way valve 8 . Further, as a refrigerant circulation amount adjustment mechanism, the discharge side and suction side of the compressor 1 are connected by a bypass circuit via an expansion valve 10.
そこで、冷房時は四方弁２を冷房側に切り替え二方弁８
を閉とし膨張弁１０を全開として圧縮機１を運転する。Therefore, during cooling, the four-way valve 2 is switched to the cooling side, and the two-way valve 8
The compressor 1 is operated with the expansion valve 10 closed and the expansion valve 10 fully open.
したがって、冷媒は第３図の点線矢印のように流れ、室
外熱交換器６で凝縮し、室内熱交換器３で蒸発して室内
が冷却される。Therefore, the refrigerant flows as indicated by the dotted arrow in FIG. 3, condenses in the outdoor heat exchanger 6, and evaporates in the indoor heat exchanger 3, thereby cooling the room.
次に暖房時は四方弁２を暖房側に切り替え、二方弁８を
閉とし膨張弁１０を全閉として圧縮機１を一定時間運転
し、室外熱交換器６に溜った冷媒を室内熱交換器３に回
収する冷媒回収運転を行ない、しかる後二方弁８を開と
し、室内機１３の室内温検出サーミスタ１１て室温を検
出し、設定温と室温との差によって、第４図の冷媒加熱
装置の加熱量特性図に示すように暖房負荷によって定ま
る加熱量で冷媒加熱装置９を運転する。ここで加熱量は
最大加熱量を１００％として、それに対する割合を％で
表わしている。さらに室外機１４の冷媒温サーミスタ１
２で冷媒温を検出し、冷媒が過熱して劣化したり圧縮機
１への液バツクが発生したりしないように、膨張弁１０
の開度を制御して冷媒循環量を調節している。したかっ
て冷媒は第３図の実線矢印のように流れ、冷媒加熱装置
９の熱交換器９ａで蒸発し、室内熱交換器３で凝縮して
室内か加温される。ここで、冷媒加熱装置９の加熱量を
変更する場合の変更速度は点火時および消火時を除き常
に一定である。９ｂはバーナである。Next, during heating, the four-way valve 2 is switched to the heating side, the two-way valve 8 is closed, the expansion valve 10 is fully closed, the compressor 1 is operated for a certain period of time, and the refrigerant accumulated in the outdoor heat exchanger 6 is exchanged for indoor heat. The refrigerant recovery operation is performed to recover the refrigerant into the container 3, and then the two-way valve 8 is opened, and the indoor temperature detection thermistor 11 of the indoor unit 13 detects the room temperature. The refrigerant heating device 9 is operated with a heating amount determined by the heating load as shown in the heating amount characteristic diagram of the heating device. Here, the heating amount is expressed as a percentage relative to the maximum heating amount as 100%. Furthermore, the refrigerant temperature thermistor 1 of the outdoor unit 14
2 to detect the refrigerant temperature, and to prevent the refrigerant from overheating and deteriorating or causing liquid backflow to the compressor 1, the expansion valve 10
The amount of refrigerant circulation is adjusted by controlling the opening degree of the refrigerant. Therefore, the refrigerant flows as shown by the solid arrow in FIG. 3, evaporates in the heat exchanger 9a of the refrigerant heating device 9, and condenses in the indoor heat exchanger 3, thereby heating the room. Here, the rate of change when changing the heating amount of the refrigerant heating device 9 is always constant except when igniting and extinguishing. 9b is a burner.
発明が解決しようとする課題
ところが上記のような従来の冷媒加熱装置を具備した空
気調和機では次のような課題があった。Problems to be Solved by the Invention However, the air conditioners equipped with the conventional refrigerant heating device as described above have the following problems.
暖房運転時、暖房負荷の変化にともない加熱量または冷
媒循環量を変更し、それに合わせて冷媒循環量または加
熱量を冷媒温で制御する場合、冷媒加熱装置９の熱交換
器９ａの熱容量や伝熱速度のため、加熱量または冷媒循
環量を変更しても冷媒温はすぐには変化しない。また、
冷媒循環量は加熱量に較べ変更速度が遅く安定するまで
に時間がかかる。したかって加熱量と冷媒循環量の変化
には時間的なずれが生じてしまい、冷媒循環量に対して
加熱量が一時的に過大または過小となる状態が発生し、
冷媒温は過渡的にオーバーシュートを起こしてから安定
状態になる。よって、−時的に冷媒が過熱して冷媒が劣
化してしまったり、圧縮機１への液バツクが発生して圧
縮機１の寿命が短くなってしまうことがあった。During heating operation, if the amount of heating or the amount of refrigerant circulation is changed in response to a change in the heating load, and the amount of refrigerant circulation or heating is controlled by the refrigerant temperature accordingly, the heat capacity and transfer of the heat exchanger 9a of the refrigerant heating device 9 may be changed. Due to the thermal velocity, the refrigerant temperature does not change immediately even if the amount of heating or the amount of refrigerant circulation is changed. Also,
The rate of change in the amount of refrigerant circulation is slower than the amount of heating, and it takes time to stabilize. Therefore, there is a time lag between changes in the amount of heating and the amount of refrigerant circulation, and a situation occurs where the amount of heating is temporarily too large or too small relative to the amount of refrigerant circulation.
The refrigerant temperature transiently overshoots and then becomes stable. Therefore, the refrigerant sometimes becomes overheated and deteriorates, or liquid backflow to the compressor 1 occurs, which shortens the life of the compressor 1.
この過渡特性は、加熱量の変更速度を遅くすることであ
る程度改善することができる。しかし、加熱量を減少さ
せる場合より増加させる場合の方がオーバーシュートが
大きく、また変更幅が小さい場合より大きい場合の方が
オーバーシュートが大きい。したがって、加熱量の最適
な変更速度は、加熱量を減少させる場合より増加させる
場合の方が遅く、また変更幅が小さい場合より大きい場
合の方が遅くなり、加熱量の変更速度は最も遅いものに
合わせる必要がある。ところが変更速度を遅くしすぎる
と暖房負荷への追従性が悪化してしまい、変更速度を遅
くするだけでは充分な対策にならなかった。This transient characteristic can be improved to some extent by slowing down the rate at which the amount of heating is changed. However, the overshoot is larger when the amount of heating is increased than when it is decreased, and the overshoot is larger when the amount of change is large than when it is small. Therefore, the optimal rate of change in the amount of heating is slower when increasing the amount of heating than decreasing it, and slower when the amount of change is large than when it is small, and the rate of change in the amount of heating is the slowest. It is necessary to match. However, if the changing speed is made too slow, the ability to follow the heating load deteriorates, and simply slowing down the changing speed is not a sufficient countermeasure.
本発明は以上の点に鑑みてなされたもので、冷媒がオー
バーシュートを起こして冷媒が過熱劣化するのを防止す
ることを目的とするものである。The present invention has been made in view of the above points, and an object of the present invention is to prevent the refrigerant from overshooting and deteriorating due to overheating.
課題を解決するための手段
上記課題を解決するために本発明は、暖房運転時、冷媒
加熱装置で加熱量の変更を行なう際、加熱量を減少する
場合より増加する場合の方が、加熱量の変更速度を遅く
するものである。Means for Solving the Problems In order to solve the above problems, the present invention provides that when changing the heating amount in a refrigerant heating device during heating operation, the heating amount is lower when the heating amount is increased than when the heating amount is decreased. This slows down the rate of change.
また本発明は、暖房運転時、冷媒加熱装置で加熱量の変
更を行なう際、加熱量の変更幅が小さい場合より大きい
場合の方が、加熱量の変更速度を遅くするものである。Further, according to the present invention, when changing the amount of heating by the refrigerant heating device during heating operation, the rate of change in the amount of heating is made slower when the amount of change in the amount of heating is large than when it is small.
さらに本発明は、暖房運転時、冷媒加熱装置の加熱量を
変更する際、冷媒循環量調節機構で冷媒循環量を一時的
に増加または減少させるものである。Further, in the present invention, when changing the heating amount of the refrigerant heating device during heating operation, the refrigerant circulation amount adjustment mechanism temporarily increases or decreases the refrigerant circulation amount.
作用 上記の手段による作用は以下のとおりである。action The effects of the above means are as follows.
本発明は、暖房運転時、冷媒加熱装置で加熱量の変更を
行なう際、加熱量を減少する場合より増加する場合の方
が、加熱量の変更速度を遅くすることにより、それぞれ
最適な変更速度を選ぶことが可能となり、加熱量を増加
する場合に冷媒が過渡的にオーバーシュートを起こして
、冷媒が過熱し劣化してしまうのを、加熱量を減少させ
る場合の暖房負荷への追従性を損なうことなく防ぐこと
ができる。According to the present invention, when changing the heating amount in a refrigerant heating device during heating operation, the changing speed of the heating amount is slower when increasing the heating amount than when decreasing the heating amount, thereby achieving the respective optimal changing speed. This makes it possible to prevent the refrigerant from overshooting transiently when the heating amount is increased, resulting in overheating and deterioration, and to reduce the ability to follow the heating load when decreasing the heating amount. It can be prevented without causing damage.
また本発明は、暖房運転時、冷媒加熱装置で加熱量の変
更を行なう際、加熱量の変更幅が小さい場合より大きい
場合の方が、加熱量の変更速度を遅くすることより、そ
れぞれ最適な変更速度を選ぶことが可能となり、加熱量
を大幅に変更する場合に冷媒が過渡的にオーバーシュー
トを起こして、冷媒の過熱や圧縮機への液バツクが発生
し冷媒が劣化したり圧縮機の寿命が短くなってしまうこ
とを、加熱量の変更幅が小さい場合の暖房負荷への追従
性を損なうことなく防ぐことができる。Furthermore, in the present invention, when changing the amount of heating by the refrigerant heating device during heating operation, when the amount of change in the amount of heating is large than when the amount of change is small, the speed of changing the amount of heating is slowed down. It is now possible to select the change speed, and when the amount of heating is changed significantly, the refrigerant will temporarily overshoot, causing overheating of the refrigerant and liquid backlog to the compressor, resulting in deterioration of the refrigerant and damage to the compressor. Shortening of the service life can be prevented without impairing the ability to follow the heating load when the range of change in the amount of heating is small.
さらに本発明は、暖房運転時、冷媒加熱装置の加熱量を
変更する際、冷媒循環量調節機構で冷媒循環量を一時的
に増加または減少させることにより、冷媒循環量の加熱
量に対する変化の遅れを補い、加熱量を変更する場合に
冷媒が過渡的にオーバーシュートを起こして、冷媒の過
熱や圧縮機への液バツクが発生し冷媒が劣化したり圧縮
機の寿命が短くなってしまうことを防ぐことができる。Furthermore, during heating operation, when changing the heating amount of the refrigerant heating device, the refrigerant circulation amount adjustment mechanism temporarily increases or decreases the refrigerant circulation amount, thereby delaying the change in the refrigerant circulation amount with respect to the heating amount. To compensate for this, when changing the heating amount, the refrigerant may temporarily overshoot, causing overheating of the refrigerant and liquid backlog to the compressor, which could deteriorate the refrigerant and shorten the life of the compressor. It can be prevented.
実施例 以下、本発明の実施例について図面を参考に説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
まず、本発明の第１の実施例について説明する。冷凍サ
イクルおよび冷房運転の制御、また暖房運転開始時の冷
媒回収運転、さらに暖房運転時の圧縮機、四方弁、二方
弁、膨張弁の制御は前記−従来例と同一なので説明を省
略する。First, a first embodiment of the present invention will be described. The control of the refrigeration cycle and the cooling operation, the refrigerant recovery operation at the start of the heating operation, and the control of the compressor, four-way valve, two-way valve, and expansion valve during the heating operation are the same as those in the prior art example, so a description thereof will be omitted.
冷媒加熱装置の加熱量の制御において暖房負荷と加熱量
の関係は前記従来例と同一であるが、本実施例では加熱
量の変更速度を加熱量を増加する場合は減少する場合の
約１１５とし、加熱量を減少する場合より増加する場合
の方が変更速度が遅くなるようにすることで、それぞれ
の変更速度が最適になるようにしている。In controlling the heating amount of the refrigerant heating device, the relationship between the heating load and the heating amount is the same as in the conventional example, but in this example, the heating amount changing speed is set to about 115 when increasing the heating amount and when decreasing the heating amount. By making the changing speed slower when increasing the heating amount than when decreasing it, each changing speed is optimized.
したがって加熱量を増加する場合、冷媒の過渡的なオー
バーシュートで、冷媒が過熱し劣化してしまうことを加
熱量を減少する場合の暖房負荷への追従性を損なうこと
なく防ぐことができる。ここで加熱量を増加する場合、
減少する場合と同じ変更速度でｔ秒間増加し４を秒間一
定とすることの繰り返しで加熱量を段階的に増加して、
疑似的に加熱量の変更速度を遅くしたのと同じ効果を得
ることができる。Therefore, when increasing the amount of heating, it is possible to prevent overheating and deterioration of the refrigerant due to transient overshoot of the refrigerant without impairing followability to the heating load when decreasing the amount of heating. If you increase the heating amount here,
The amount of heating is increased stepwise by repeating increasing it for t seconds at the same rate of change as when decreasing and keeping it constant for 4 seconds,
The same effect as artificially slowing down the rate of change of the heating amount can be obtained.
次に本発明の第２の実施例について説明する。Next, a second embodiment of the present invention will be described.
冷凍サイクルおよび冷房運転の制御、また暖房運転開始
時の冷媒回収運転、さらに暖房運転時の圧縮機、四方弁
、三方弁、膨張弁の制御は前記従来例と同一なので説明
を省略する。The control of the refrigeration cycle and the cooling operation, the refrigerant recovery operation at the start of the heating operation, and the control of the compressor, four-way valve, three-way valve, and expansion valve during the heating operation are the same as in the conventional example, so a description thereof will be omitted.
冷媒加熱装置の加熱量の制御において暖房負荷と加熱量
の関係は前記従来例と同一であるが、本実施例では加熱
量の変更速度を第１図に示すように定めている。すなわ
ち加熱量の変更幅が小さい場合より大きい場合の方が変
更速度を遅くすることでそれぞれの変更幅での変更速度
が最適になるようにしている。ここで変更速度および変
更幅は、最大加熱量を１００％としてそれに対する割合
を％で表わしている。In controlling the heating amount of the refrigerant heating device, the relationship between the heating load and the heating amount is the same as in the conventional example, but in this embodiment, the rate of change of the heating amount is determined as shown in FIG. In other words, the rate of change is made slower when the range of change in the heating amount is large than when it is small, so that the speed of change in each range of change is optimized. Here, the changing speed and changing width are expressed as percentages relative to the maximum heating amount as 100%.
したがって、加熱量を大幅に変更する場合、冷媒の過渡
的なオーバーシュートで、冷媒の過熱や圧縮機への液バ
ツクが発生し、冷媒が劣化したり圧縮機の寿命が短くな
ってしまうことを変更幅が小さい場合の暖房負荷への追
従性を損なうことなく防ぐことができる。また、第１の
実施例と同様に、冷媒加熱量を変更する場合、段階的に
変更していくことで疑似的に冷媒加熱量の変更速度を遅
くしたのと同じ効果を得ることもできる。Therefore, when changing the amount of heating significantly, there is a risk that transient overshoot of the refrigerant will cause overheating of the refrigerant and liquid backflow to the compressor, resulting in deterioration of the refrigerant and shortening the life of the compressor. This can be prevented without impairing the ability to follow the heating load when the change width is small. Further, similarly to the first embodiment, when changing the refrigerant heating amount, by changing the refrigerant heating amount in stages, it is possible to obtain the same effect as artificially slowing down the changing speed of the refrigerant heating amount.
さらに本発明の第３の実施例について説明する。Further, a third embodiment of the present invention will be described.
冷凍サイクルおよび冷房運転の制御、また暖房運転開始
時の冷媒回収運転、さらに暖房運転時の圧縮機、四方弁
、二方弁の制御は前記従来例と同一なので説明を省略す
る。The control of the refrigeration cycle and the cooling operation, the refrigerant recovery operation at the start of the heating operation, and the control of the compressor, four-way valve, and two-way valve during the heating operation are the same as those in the conventional example, so a description thereof will be omitted.
本実施例では、冷媒加熱装置の加熱量を変更する場合、
その変更幅によって一定時間の間だけ、第２図の膨張弁
開度シフト特性図に示すシフト量だけ膨張弁の開度を冷
媒温によって定まる開度より、加熱量を増加する場合は
大きくし、減少する場合はより小さくして冷媒循環量の
変化の遅れを補っている。ここで開度シフト量は最大加
熱量のときの比例弁開度を１００％としてそれに対する
割合を％で表わしている。In this embodiment, when changing the heating amount of the refrigerant heating device,
If the amount of heating is to be increased, the opening of the expansion valve is increased by the shift amount shown in the expansion valve opening shift characteristic diagram in FIG. 2 for a certain period of time depending on the change width, If it decreases, it is made smaller to compensate for the delay in change in the refrigerant circulation amount. Here, the opening shift amount is expressed as a percentage with respect to the proportional valve opening at the maximum heating amount as 100%.
したがって加熱量を変更する場合、冷媒の過渡的なオー
バ−シュートで、冷媒の過熱や圧縮機への液バツクが発
生し、冷媒が劣化したり圧縮機の寿命が短くなってしま
うことを防ぐことができる。Therefore, when changing the amount of heating, it is necessary to prevent transient overshoot of the refrigerant from causing overheating of the refrigerant and liquid backlog to the compressor, which could deteriorate the refrigerant and shorten the life of the compressor. I can do it.
ここで冷媒循環量の制御を圧縮機を容量可変とするなど
他の方法で行なっている場合も、本実施例と同様にして
加熱量を増減させる場合に冷媒循環量を一時的に増減さ
せることで同様の効果を得ることができる。Even if the refrigerant circulation amount is controlled by other methods such as variable capacity of the compressor, the refrigerant circulation amount can be temporarily increased or decreased when increasing or decreasing the heating amount in the same manner as in this embodiment. You can get a similar effect with .
なお、第１、第２、第３の実施例をそれぞれ組み合わせ
ればさらに高い効果が得られるのはもちろんである。Of course, even higher effects can be obtained by combining the first, second, and third embodiments.
発明の効果
以上のように本発明によれば、冷媒加熱装置を具備した
空気調和機において、暖房運転時、冷媒加熱装置で加熱
量の変更を行なう際、加熱量を減少する場合より増加す
る場合の方が、加熱量の変更速度を遅くすることにより
、それぞれ最適な変更速度を選ぶことが可能となり、加
熱量を増加する場合に冷媒が過渡的にオーバーシュート
を起こして、冷媒が過熱し劣化してしまうのを、加熱量
を減少させる場合の暖房負荷への追従性を損なうことな
く防ぐことができる。Effects of the Invention As described above, according to the present invention, in an air conditioner equipped with a refrigerant heating device, when the heating amount is changed by the refrigerant heating device during heating operation, the heating amount increases more than it decreases. By slowing down the rate of change in the amount of heating, it is possible to select the optimum rate of change for each, and when increasing the amount of heating, the refrigerant may transiently overshoot, resulting in overheating and deterioration of the refrigerant. This can be prevented without impairing the ability to follow the heating load when reducing the amount of heating.
また本発明は、暖房運転時、冷媒加熱装置で加熱量の変
更を行なう際、加熱量の変更幅が小さい場合より大きい
場合の方が、加熱量の変更速度を遅くすることにより、
それぞれ最適な変更速度を選ぶことが可能となり、加熱
量を大幅に変更する場合に冷媒が過渡的にオーバーシュ
ートを起こして、冷媒の過熱や圧縮機への液バツクが発
生し冷媒が劣化したり圧縮機の寿命が短（なってしまう
ことを、加熱量の変更幅が小さい場合の暖房負荷への追
従性を損なうことなく防ぐことができる。Further, in the present invention, when changing the amount of heating by the refrigerant heating device during heating operation, the speed of changing the amount of heating is made slower when the amount of change in the amount of heating is large than when the amount of change is small.
It is now possible to select the optimum change speed for each, and when changing the heating amount significantly, the refrigerant may temporarily overshoot, causing overheating of the refrigerant, liquid backlog to the compressor, and deterioration of the refrigerant. It is possible to prevent the life of the compressor from being shortened without impairing the ability to follow the heating load when the amount of heating is changed within a small range.
さらに本発明は、暖房運転時、冷媒加熱装置の加熱量を
変更する際、冷媒循環量調節機構で冷媒循環量を一時的
に増加または減少させることにより、冷媒循環量の加熱
量に対する変化の遅れを補い、加熱量を変更する場合に
冷媒が過渡的にオーバーシュートを起こして、冷媒の過
熱や圧縮機への液バツクが発生し冷媒が劣化したり圧縮
機の寿命が短くなってしまうことを防ぐことができる。Furthermore, during heating operation, when changing the heating amount of the refrigerant heating device, the refrigerant circulation amount adjustment mechanism temporarily increases or decreases the refrigerant circulation amount, thereby delaying the change in the refrigerant circulation amount with respect to the heating amount. To compensate for this, when changing the heating amount, the refrigerant may temporarily overshoot, causing overheating of the refrigerant and liquid backlog to the compressor, which could deteriorate the refrigerant and shorten the life of the compressor. It can be prevented.
第１図は本発明の一実施例における冷媒加熱装置の加熱
量変更速度特性図、第２図は本発明の別の実施例におけ
る膨張弁開度シフト特性図、第３図は従来例における空
気調和機の冷凍サイクル図、第４図は同じ〈従来例にお
ける冷媒加熱装置の加熱量特性図である。
代理人 森 本 義 私
印１図
ｄｉｔ幅
第２図
変更幅
１％）
第３
図
第４区
呟虞９茹（室羞−額定１）Fig. 1 is a heating amount change rate characteristic diagram of a refrigerant heating device according to an embodiment of the present invention, Fig. 2 is an expansion valve opening shift characteristic diagram according to another embodiment of the present invention, and Fig. 3 is a characteristic diagram of an expansion valve opening shift in a conventional example. The refrigeration cycle diagram of the harmonizer, FIG. 4, is a heating amount characteristic diagram of the refrigerant heating device in the same conventional example. Agent Yoshi Morimoto Private seal 1 figure dit width 2 figure change width 1%) Figure 3 4th ward murmur 9 boils (murosha - frame fixed 1)
Claims (1)
換器などを環状に連結した冷凍サイクルの一部に冷媒を
加熱する冷媒加熱装置を設け、暖房運転時に前記冷媒加
熱装置で加熱量の変更を行なう際、加熱量を減少する場
合より増加する場合の方が加熱量の変更速度を遅くした
空気調和機。 ２、圧縮機、四方弁、室内熱変換器、減圧器、室外熱交
換器などを環状に連結した冷凍サイクルの一部に冷媒を
加熱する冷媒加熱装置を設け、暖房運転時に前記冷媒加
熱装置で加熱量の変更を行なう際、加熱量の変更幅が小
さい場合より大きい場合の方が、加熱量の変更速度を遅
くした空気調和機。 ３、圧縮機、四方弁、室内熱変換器、減圧器、室外熱交
換器などを環状に連結した冷凍サイクルの一部に冷媒を
加熱する冷媒加熱装置を設け、さらに冷媒循環量調節機
構を設けて、暖房運転時に前記冷媒加熱装置の加熱量を
変更する際、前記冷媒循環量調節機構で冷媒循環量を一
時的に増加または減少させるようにした空気調和機。[Claims] 1. A refrigerant heating device that heats the refrigerant is provided in a part of the refrigeration cycle in which a compressor, a four-way valve, an indoor heat converter, a pressure reducer, an outdoor heat exchanger, etc. are connected in a ring, and heating operation is performed. When changing the heating amount in the refrigerant heating device, the speed of changing the heating amount is slower when increasing the heating amount than when decreasing the heating amount. 2. A refrigerant heating device that heats the refrigerant is installed in a part of the refrigeration cycle in which a compressor, a four-way valve, an indoor heat converter, a pressure reducer, an outdoor heat exchanger, etc. are connected in a ring, and the refrigerant heating device heats the refrigerant during heating operation. An air conditioner in which when changing the heating amount, the speed of changing the heating amount is slower when the width of the heating amount change is large than when it is small. 3. A refrigerant heating device that heats the refrigerant is installed in a part of the refrigeration cycle in which a compressor, four-way valve, indoor heat converter, pressure reducer, outdoor heat exchanger, etc. are connected in a ring, and a refrigerant circulation amount adjustment mechanism is installed. In the air conditioner, the refrigerant circulation amount adjustment mechanism temporarily increases or decreases the refrigerant circulation amount when changing the heating amount of the refrigerant heating device during heating operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2192498A JP3040141B2 (en) | 1990-07-19 | 1990-07-19 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2192498A JP3040141B2 (en) | 1990-07-19 | 1990-07-19 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0480562A true JPH0480562A (en) | 1992-03-13 |
| JP3040141B2 JP3040141B2 (en) | 2000-05-08 |
Family
ID=16292309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2192498A Expired - Fee Related JP3040141B2 (en) | 1990-07-19 | 1990-07-19 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3040141B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007091553A1 (en) * | 2006-02-08 | 2007-08-16 | Daikin Industries, Ltd. | Refrigerant heating device and method of controlling heating capacity of the device |
| WO2009004780A1 (en) * | 2007-06-29 | 2009-01-08 | Daikin Industries, Ltd. | Freezing apparatus |
| WO2010106773A1 (en) * | 2009-03-19 | 2010-09-23 | ダイキン工業株式会社 | Air conditioning device |
| CN102356285A (en) * | 2009-03-19 | 2012-02-15 | 大金工业株式会社 | Air conditioning device |
| US9046275B2 (en) | 2009-03-19 | 2015-06-02 | Daikin Industries, Ltd. | Air conditioner with electromagnetic induction heating unit |
| US9328944B2 (en) | 2009-03-19 | 2016-05-03 | Daikin Industries, Ltd. | Air conditioning apparatus |
| US9335071B2 (en) | 2009-03-19 | 2016-05-10 | Daikin Industries, Ltd. | Air conditioning apparatus |
-
1990
- 1990-07-19 JP JP2192498A patent/JP3040141B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007091553A1 (en) * | 2006-02-08 | 2007-08-16 | Daikin Industries, Ltd. | Refrigerant heating device and method of controlling heating capacity of the device |
| AU2008272384B2 (en) * | 2007-06-29 | 2011-01-27 | Daikin Industries, Ltd. | Refrigeration system |
| WO2009004780A1 (en) * | 2007-06-29 | 2009-01-08 | Daikin Industries, Ltd. | Freezing apparatus |
| JP2009014212A (en) * | 2007-06-29 | 2009-01-22 | Daikin Ind Ltd | Refrigerating device |
| CN102348937A (en) * | 2009-03-19 | 2012-02-08 | 大金工业株式会社 | Air conditioning device |
| JP2010223455A (en) * | 2009-03-19 | 2010-10-07 | Daikin Ind Ltd | Air conditioner |
| WO2010106773A1 (en) * | 2009-03-19 | 2010-09-23 | ダイキン工業株式会社 | Air conditioning device |
| CN102356285A (en) * | 2009-03-19 | 2012-02-15 | 大金工业株式会社 | Air conditioning device |
| AU2010226000B2 (en) * | 2009-03-19 | 2012-11-08 | Daikin Industries, Ltd. | Air conditioner |
| US9046275B2 (en) | 2009-03-19 | 2015-06-02 | Daikin Industries, Ltd. | Air conditioner with electromagnetic induction heating unit |
| US9074782B2 (en) | 2009-03-19 | 2015-07-07 | Daikin Industries, Ltd. | Air conditioner with electromagnetic induction heating unit |
| US9328944B2 (en) | 2009-03-19 | 2016-05-03 | Daikin Industries, Ltd. | Air conditioning apparatus |
| US9335071B2 (en) | 2009-03-19 | 2016-05-10 | Daikin Industries, Ltd. | Air conditioning apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3040141B2 (en) | 2000-05-08 |
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