JPS59170662A - Method of controlling defrostation of heat pump device - Google Patents
Method of controlling defrostation of heat pump deviceInfo
- Publication number
- JPS59170662A JPS59170662A JP58045656A JP4565683A JPS59170662A JP S59170662 A JPS59170662 A JP S59170662A JP 58045656 A JP58045656 A JP 58045656A JP 4565683 A JP4565683 A JP 4565683A JP S59170662 A JPS59170662 A JP S59170662A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- pump device
- defrosting
- heat pump
- temperature
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、冷・暖房用として使用されるヒートポンプ装
置の除霜制御方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a defrosting control method for a heat pump device used for cooling and heating.
既に提案されているこの種のヒートポンプ装置は、暖房
運転時、第７図乃至第３図に示されるように、冷媒圧縮
機／を駆動することにより、この冷媒圧縮機で加圧され
た高温冷媒は、第１図の点線の示矢方向に、吐出管コか
ら吐出して、しかる後、四方弁３を通して室内熱交換器
ケに供給され、ここで、室内用ファンＳによって強制的
に熱交換して室内を暖房し、他方、熱交換を終って凝縮
した冷媒は、キャピラリーチューブ（膨張弁）Ａを通す
ことによって減圧して室外熱交換器７へ供給し、ここで
、室外用ファンＫによって強制的に熱交換して室外熱交
換器７の表面温度を氷点以下に低下させるため、経時的
に霜が着霜する。一方、熱交換を終って気化した冷媒は
、上記四方弁３及び吸込管９を通して上記冷媒圧縮機／
へ還流するようになっている。This type of heat pump device, which has already been proposed, drives a refrigerant compressor during heating operation, as shown in FIGS. is discharged from the discharge pipe in the direction indicated by the dotted line in FIG. On the other hand, the refrigerant condensed after heat exchange is depressurized by passing through a capillary tube (expansion valve) A and supplied to the outdoor heat exchanger 7, where it is heated by an outdoor fan K. Since the surface temperature of the outdoor heat exchanger 7 is lowered below the freezing point by forced heat exchange, frost forms over time. On the other hand, the refrigerant vaporized after heat exchange passes through the four-way valve 3 and the suction pipe 9 to the refrigerant compressor/
It is designed to flow back to.
このようにして、暖房運転時、上記ヒートポンプ装置の
室外熱交換器７は、経時的に着霜して熱交換効率を徐々
に低下させるので、一時的に、上記四方弁３を切換えて
除霜運転を行う。即ち、冷媒圧縮機／で加圧された冷媒
は、第１図の実線の示矢方向に逆流させて、上記室外熱
交換器７０表面に着霜した霜を除霜し、しかる後、再び
、暖房運転に切換えて室内の暖房をするようになってい
る。In this way, during heating operation, the outdoor heat exchanger 7 of the heat pump device frosts over time and gradually reduces the heat exchange efficiency, so the four-way valve 3 is temporarily switched to defrost the heat exchanger 7. Drive. That is, the refrigerant pressurized by the refrigerant compressor is caused to flow backward in the direction indicated by the solid line in FIG. 1 to defrost the frost that has formed on the surface of the outdoor heat exchanger 70, and then again. The system switches to heating mode to heat the room.
この場合、上述したヒートポンプ装置は、第Ω図の電気
回路に示されるように、ソケット１０ａを備えた給電回
路１０に冷媒圧縮機／の開閉器／ａ（電磁開閉器）、四
方弁３の開閉器Ｊａ、室内室内熱交換器室内用ファンＳ
の開閉器５ａ、室外用ファンｇの開閉器ｇａ及びマイコ
ン（マイクロコンピュータ）／／が並列にして配設した
ものであって、これによって、上述したヒートポンプ装
置を暖房運転から除霜運転に切換えて、第３図のタイム
チャートに示されるように、一定時間室外熱交換器７の
表面に着霜した霜を除霜し得るようになっている。In this case, the above-described heat pump device has a power supply circuit 10 equipped with a socket 10a, a refrigerant compressor switch/a (electromagnetic switch), and a four-way valve 3 open/close switch, as shown in the electric circuit in Figure Ω. Equipment Ja, indoor heat exchanger indoor fan S
The switch 5a of the outdoor fan g, the switch ga of the outdoor fan g, and the microcomputer (microcomputer) // are arranged in parallel, and thereby the heat pump device described above can be switched from heating operation to defrosting operation. As shown in the time chart of FIG. 3, the frost formed on the surface of the outdoor heat exchanger 7 can be defrosted for a certain period of time.
即ち、上記マイコン／／は、除霜運転時、冷媒圧縮機／
の開閉器／ａを除き、他の各開閉器３ａ。That is, the microcomputer// mentioned above controls the refrigerant compressor// during defrosting operation.
Except for the switch/a, each of the other switches 3a.
＆ａ、ｇａ、を開閉動作し、しかも、室内用ファンＳを
時間ｔ１だげ他の開閉器３ａ、ｇｈよりも遅延してｏｎ
するようにしている。&a and ga open and close, and the indoor fan S is turned on with a delay of time t1 compared to the other switches 3a and gh.
I try to do that.
これによって、除霜運転時、室内熱交換器りの温度Ｔｃ
と室内温度Ｔｉ との関係は、第３図に示されるように
室内温度Ｔｉは、略一定であり、他方、室内熱交換器グ
の温１ｔＴｃは、大幅に低下する。As a result, during defrosting operation, the temperature Tc of the indoor heat exchanger
As shown in FIG. 3, the indoor temperature Ti is approximately constant, while the temperature 1tTc of the indoor heat exchanger G decreases significantly.
一方、除霜運転時の外気温度Ｔ。は一定になっており、
上記室外熱交換器７の温度Ｔｅは、除霜時間の終了時、
上記外気温度Ｔ。よりも、上昇するようになっている。On the other hand, the outside air temperature T during defrosting operation. is constant,
The temperature Te of the outdoor heat exchanger 7 is set at the end of the defrosting time.
The above outside temperature T. It's starting to rise.
しかしながら上述したヒートポンプ装置の除霜制御方法
は、上記各開閉器、？ａ、５ａ、ｇａを」１記マイコン
／／によって制御し、しかも、除霜時間終了直前に室外
熱交換器７の温度Ｔ８が、第３図の斜線で示されるよう
に、外気温度Ｔ。よりも高くなり、さらに、上記室外熱
交換器７の温度は、除霜終了と同時に、室外用ファンｇ
の送風作用で大気中に排熱され、これに起因して、冷凍
ザイクルのエンタルピが低減して室外熱交換器７の熱エ
ネルギーを無駄に排熱するようになっている。However, the defrosting control method for the heat pump device described above is limited to each of the above-mentioned switches, ? a, 5a, and ga are controlled by the microcomputer (1), and the temperature T8 of the outdoor heat exchanger 7 immediately before the end of the defrosting time is the outside air temperature T, as shown by diagonal lines in FIG. Furthermore, the temperature of the outdoor heat exchanger 7 becomes higher than that of the outdoor fan g at the same time as the defrosting is completed.
The heat is exhausted into the atmosphere by the blowing action of the air, and as a result, the enthalpy of the freezing cycle is reduced, and the thermal energy of the outdoor heat exchanger 7 is wasted.
本発明は、上述した事情に鑑みてなされたものであって
、除霜運転から暖房運転に復帰する際、除霜終了間際に
室外熱交換器に生じた熱エネルギーを無駄に排熱しない
ようにして、暖房運転復帰時の熱エネルギーを利用して
、暖房時の立上り効率を上げるようにし、省エネルギー
化を図り、ヒートポンプ装置の暖房復帰動作を早期に行
えるようにしたことを目的とするヒートポンプ装置の除
霜制御方法を提供するものである。The present invention has been made in view of the above-mentioned circumstances, and is designed to prevent the thermal energy generated in the outdoor heat exchanger just before the end of defrosting from being wasted when returning from defrosting operation to heating operation. The purpose of this heat pump device is to use the thermal energy at the time of returning to heating operation to increase the start-up efficiency during heating, save energy, and enable the heat pump device to return to heating quickly. A defrosting control method is provided.
本発明は、冷暖房用としてのヒートポンプ装置において
、除霜運転から暖房運転に復帰した後、室外熱交換器の
室外用ファンの送風開始時間を遅延して作動し得るよう
にして暖房時の立上り効率の向上を図るようにしたもの
である。The present invention provides a heat pump device for use in air conditioning, in which the outdoor fan of an outdoor heat exchanger can operate with a delayed air blowing start time after returning from defrosting operation to heating operation, thereby increasing startup efficiency during heating. The aim is to improve the
以下、本発明を図示の一実施例について説明する。 Hereinafter, the present invention will be described with reference to an illustrated embodiment.
なお、本発明は、上述した具体例と同一構成部材には同
じ符号を付して説明する。It should be noted that the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.
第１図及び第７図において、暖房運転時、冷媒圧縮機／
で加圧された高温冷媒は、第１図の点線の示矢方向に、
吐出管−から吐出し、四方弁３を通して室内熱交換器グ
に供給され、ここで、室内用ファンＳによって強制的に
熱交換して室内を暖房し１、他方、熱交換して凝縮した
冷媒は、キャピラリーチューブ乙を通すことによって減
圧して室外熱交換器７へ供給し、ここで室外用ファンｇ
によって強制的に熱交換して室外熱交換器７０表面温度
を氷点以下に低下させるため、霜が経時的に着霜する。1 and 7, during heating operation, the refrigerant compressor/
The high temperature refrigerant pressurized at
The refrigerant is discharged from the discharge pipe and supplied to the indoor heat exchanger G through the four-way valve 3, where the indoor fan S forcibly exchanges heat to heat the room. is depressurized by passing through the capillary tube B and supplied to the outdoor heat exchanger 7, where the outdoor fan g
Because the surface temperature of the outdoor heat exchanger 70 is lowered to below the freezing point by forcibly exchanging heat, frost forms over time.
一方、熱交換を終って気化した冷媒は、上記四方弁３及
び吸込管９を通して上記冷媒圧縮機／に還流するように
なっている。On the other hand, the refrigerant that has been vaporized after heat exchange returns to the refrigerant compressor through the four-way valve 3 and the suction pipe 9.
又一方、室外熱交換器７０表面には、霜が経時的に着霜
して熱交換効率を徐々に低下するため、室外熱交換器り
の温度が所定温度（例えば−／、Ｌ℃）以下になると、
上記四方弁３を切換えて、冷媒を第７図の実線の示矢方
向に逆流させて、上記室外熱交換器７の表面の霜を除霜
し、しかる後、再び、暖房運転に切換えて室内暖房を開
始するようになっている。On the other hand, frost forms on the surface of the outdoor heat exchanger 70 over time and gradually reduces the heat exchange efficiency, so the temperature of the outdoor heat exchanger is lower than a predetermined temperature (for example, -/, L°C). To become and,
The four-way valve 3 is switched to cause the refrigerant to flow backward in the direction indicated by the solid line in FIG. Heating is now started.
この場合、本発明は、一実施例として、室外熱交換器７
の温度が所定温度（例えば−７２℃）以下になると、四
方弁３を切換えて除霜運転を開始し、上記室外熱交換器
７の温度が所定温度（例えば、７０℃）以上になると暖
房運転に切換わる。除霜運転中、開閉器、？ａ、５ａ、
ｆａは開、開閉器／ａは閉にそれぞれ動作する。又、除
霜運転に復帰しても、室内用ファンＳは時間ｔ１ と
し、室外用ファンｇは時間ｔ、だげ上記開閉器３ａより
も遅延して作動するようにしている。In this case, the present invention provides an outdoor heat exchanger 7 as an example.
When the temperature of the outdoor heat exchanger 7 falls below a predetermined temperature (for example, -72°C), the four-way valve 3 is switched to start defrosting operation, and when the temperature of the outdoor heat exchanger 7 reaches a predetermined temperature (for example, 70°C) or higher, heating operation starts. Switch to . Switch during defrosting operation? a, 5a,
fa is open and switch/a is closed. Even when the defrosting operation is resumed, the indoor fan S is operated at time t1, and the outdoor fan g is operated at time t, with a delay from the switch 3a.
このとき、上記遅延する時間１ｔは、外気温度Ｔ０
とし、室外熱交換器７の温度Ｔ６ としたとき、例えば
、
Ｔｏ≧Ｔｅ
となるまでの時間を目安としている。因に、上記遅延時
間ｔ２は、例えば、上記室外熱交換器７に付設された温
度センサ（図示されず）で検出された除霜終了時間若し
くは実験結果によって得たものを、予め、上記マイコン
／／に設定した除霜終了時間にしてもよい。At this time, the above-mentioned delay time 1t is the outside temperature T0
For example, when the temperature of the outdoor heat exchanger 7 is T6, the time required for To≧Te is used as a guide. Incidentally, the delay time t2 is determined in advance by determining, for example, the defrosting end time detected by a temperature sensor (not shown) attached to the outdoor heat exchanger 7 or a value obtained from an experimental result. The defrosting end time may be set to /.
従って、上記室外熱交換器７０室外用フアンｇの送風開
始は、除霜運転から暖房運転に切換った後、遅延して作
動開始することにより、除霜時に受けた室外熱交換器７
の熱エネルギーは、室外用ファンｇによって強制的に放
熱されず、暖房運転に切換えられた冷媒自身にり、えら
れ、これによって、冷媒の蒸発（気化）作用が早くなり
、暖房運転時の立上り効率を上げると共に省エネルギー
化を図るようになっている。Therefore, the outdoor fan g of the outdoor heat exchanger 70 starts blowing air with a delay after switching from defrosting operation to heating operation, so that the outdoor heat exchanger 7
The heat energy is not forcibly dissipated by the outdoor fan g, but is obtained by the refrigerant itself when switching to heating operation, which speeds up the evaporation (vaporization) of the refrigerant and reduces the startup time during heating operation. In addition to increasing efficiency, efforts are being made to save energy.
しかして、第９図の斜線で示されるように、熱エネルギ
ーαの無駄を低減するようになっている。Therefore, as shown by the diagonal lines in FIG. 9, waste of thermal energy α is reduced.
なお、本発明の一実施例にあっては、除霜開始を室外熱
交換器７の温度によったが、これに限定されることなく
、室内熱交換器りの温度低下、例えば通常運転中ｓｏ
’ｃあったのが３０°Ｃに低下したら、この場合間らか
に室外熱交換器７に薄箱していると推定できるので、こ
の３０℃という温度を検知して、マイコンによりあらか
じめ定められた時間だけ除霜運転をしても良い。また、
復帰を四方弁の切換えによったが、これに限らず、三方
弁を使ったヒートポンプサイクルでも良く、要は除霜サ
イクルから暖房サイクル（切換えれば良い。In one embodiment of the present invention, defrosting is started depending on the temperature of the outdoor heat exchanger 7, but the invention is not limited to this, and the defrosting is started depending on the temperature of the indoor heat exchanger 7, for example, during normal operation. so
If the temperature drops to 30°C, it can be assumed that the outdoor heat exchanger 7 has a thin box. You can run the defrost operation for the same amount of time. Also,
Although the recovery is performed by switching the four-way valve, the present invention is not limited to this, and a heat pump cycle using a three-way valve may also be used.In short, it is sufficient to switch from the defrosting cycle to the heating cycle.
以上述べたように本発明は、冷暖房用のヒートポンプ装
置において、除霜運転から暖房運転に復帰した後、室外
熱交換器７０室外用フアンｇの送風開始時間を遅延して
作動し得るようになっているので、暖房時の立上り効率
を上げることができるばかりでなく、省エネルギー化を
図り、しかも、熱エネルギーの無駄を低減することカテ
キル。As described above, in a heat pump device for heating and cooling, the outdoor heat exchanger 70 can operate with a delay in the air blowing start time of the outdoor fan g after the defrosting operation returns to the heating operation. This not only improves startup efficiency during heating, but also saves energy and reduces waste of thermal energy.
第１図は、既に提案されているヒートポンプ装置の系統
図、第２図は、上記ヒートポンプ装置の電気回路図、第
３図は、上記ヒートポンプ装置の除霜制御方法のタイム
チャートを説明するための図、第９図は、本発明による
ヒートポンプ装置の除霜制御方法のタイムチャートを説
明するための図である。
／・・・冷媒圧縮機、３・・・四方弁、ダ・・・室内熱
交換器、り・・・室内用ファン、７・・・室外熱交換器
、ｇ・・・室外用ファン、／／・・・マイコン。
出願人代理人 猪 股 清
聾、′３開
多４図
ノ ゛
３Ｑ ・ ：Fig. 1 is a system diagram of a heat pump device that has already been proposed, Fig. 2 is an electric circuit diagram of the heat pump device, and Fig. 3 is a time chart for explaining the defrosting control method of the heat pump device. FIG. 9 is a diagram for explaining a time chart of the defrosting control method for a heat pump device according to the present invention. /...refrigerant compressor, 3...four-way valve, da...indoor heat exchanger, ri...indoor fan, 7...outdoor heat exchanger, g...outdoor fan, / /...Microcomputer. Applicant's agent Kiyosho Inomata, '3 Kaita 4 Figure 3Q:
Claims (1)
房運転に復帰した後、室外熱交換器の室外用ファンの送
風開始時間を遅延して作動し得るようにしたことを特徴
とするヒートポンプ装置の除霜制御方法。Defrosting of a heat pump device for heating and cooling, characterized in that after returning from defrosting operation to heating operation, the outdoor fan of an outdoor heat exchanger can be activated by delaying the air blowing start time. Control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58045656A JPS59170662A (en) | 1983-03-18 | 1983-03-18 | Method of controlling defrostation of heat pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58045656A JPS59170662A (en) | 1983-03-18 | 1983-03-18 | Method of controlling defrostation of heat pump device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59170662A true JPS59170662A (en) | 1984-09-26 |
| JPH0136036B2 JPH0136036B2 (en) | 1989-07-28 |
Family
ID=12725418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58045656A Granted JPS59170662A (en) | 1983-03-18 | 1983-03-18 | Method of controlling defrostation of heat pump device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59170662A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618572A (en) * | 1984-06-22 | 1986-01-16 | ダイキン工業株式会社 | Refrigerator |
| JPS629066U (en) * | 1985-07-01 | 1987-01-20 | ||
| JPH02282644A (en) * | 1989-04-24 | 1990-11-20 | Daikin Ind Ltd | Operation-control device in air-conditioning apparatus |
| JP2013053782A (en) * | 2011-09-02 | 2013-03-21 | Sharp Corp | Air conditioner |
| JP2014145572A (en) * | 2013-01-30 | 2014-08-14 | Denso Corp | Heat pump device |
| JP2022510618A (en) * | 2018-12-29 | 2022-01-27 | 広東美的制冷設備有限公司 | Air conditioning system control methods, air conditioning system control devices, air conditioning systems, electronic devices, and storage media |
-
1983
- 1983-03-18 JP JP58045656A patent/JPS59170662A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618572A (en) * | 1984-06-22 | 1986-01-16 | ダイキン工業株式会社 | Refrigerator |
| JPH0359352B2 (en) * | 1984-06-22 | 1991-09-10 | Daikin Ind Ltd | |
| JPS629066U (en) * | 1985-07-01 | 1987-01-20 | ||
| JPH0330777Y2 (en) * | 1985-07-01 | 1991-06-28 | ||
| JPH02282644A (en) * | 1989-04-24 | 1990-11-20 | Daikin Ind Ltd | Operation-control device in air-conditioning apparatus |
| JP2013053782A (en) * | 2011-09-02 | 2013-03-21 | Sharp Corp | Air conditioner |
| JP2014145572A (en) * | 2013-01-30 | 2014-08-14 | Denso Corp | Heat pump device |
| JP2022510618A (en) * | 2018-12-29 | 2022-01-27 | 広東美的制冷設備有限公司 | Air conditioning system control methods, air conditioning system control devices, air conditioning systems, electronic devices, and storage media |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0136036B2 (en) | 1989-07-28 |
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