JPS6050349A - Method of controlling refrigeration cycle - Google Patents
Method of controlling refrigeration cycleInfo
- Publication number
- JPS6050349A JPS6050349A JP15747683A JP15747683A JPS6050349A JP S6050349 A JPS6050349 A JP S6050349A JP 15747683 A JP15747683 A JP 15747683A JP 15747683 A JP15747683 A JP 15747683A JP S6050349 A JPS6050349 A JP S6050349A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- refrigeration cycle
- expansion valve
- circuit
- discharge 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.)
- Pending
Links
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
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、ｆｃとえげ空気調和機に組み込まれる冷凍サ
イクルの１−御方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for controlling a refrigeration cycle incorporated in an FC air conditioner.
この種の冷凍サイクルは、第１１９１に示すように、室
外側熱交換器ｌと室内側蒙（交柳器２を結ぶ一方の回路
８にコンプレッサ４を、他方の回路５ Ｋ ’＋に動式
膨張弁６を設けて構成されていて、コンプレッサのケー
スに設けたザーモヌタット（図示せず）により、冷媒の
吐出温度を検出し、その検出信号で１１（動式膨張弁６
の開度を制御し、コンプレッサの冷媒吐出温度を設定範
囲内に制御している。This type of refrigeration cycle, as shown in No. 1191, includes a compressor 4 in one circuit 8 connecting the outdoor heat exchanger l and the indoor heat exchanger 2, and a compressor 4 in the other circuit 5 K'+. The refrigerant discharge temperature is detected by a thermostat (not shown) provided in the case of the compressor, and the detection signal is used to activate the expansion valve 11 (dynamic expansion valve 6).
The opening degree of the compressor is controlled to keep the refrigerant discharge temperature of the compressor within a set range.
しかし上記形式の冷凍サイクルテニ、コンプレッサの負
荷の急激な上昇で吐出湿度が一時的に上昇した際にも、
サーモヌタットが１作し、コンプレッサを停止させたり
、またガヌリークやフ丁ンａツク等の具常が発生した際
に、サーモヌタットの動作で、コンプレッサが停止して
も、吐出湿度が下ると、コンプレッサが再び作１ｈυし
、この繰り返し運転でコンプレッサが損傷し１し捷うこ
とがある。However, when the above-mentioned refrigeration cycle temperature rises temporarily due to a sudden increase in compressor load,
Even if the compressor stops due to the operation of the thermonut, when a problem such as gun leakage or a blockage occurs, the compressor will stop if the discharge humidity drops. The compressor may be damaged due to this repeated operation and then restarted for 1 hour.
本発明は上記した点に鑑みてなされたもので、負荷の急
増に幻してはｌ’ｉ’、 ＮＩＪ式膨張弁を開く方向に
」１１かして吐出温度を下げて運転を続行し、異常発生
時＆ｌｊコンプレッサを停止し２、コンプレッサの′４
ハ１粘を防き（Ｕるようにした冷凍サイクルの１ｌｌｌ
ｌ衛１方法を提供することを目的とする。The present invention has been made in view of the above points, and when the load suddenly increases, the NIJ expansion valve is opened, the discharge temperature is lowered, and the operation is continued. When an abnormality occurs &lj, the compressor is stopped, and the compressor's
The refrigeration cycle is designed to prevent viscosity (1llll)
The purpose is to provide a method for protecting one's health.
〔発明の４既要〕
本弁明は、回路に設けた過負荷検出装置で、コンプレッ
サの過負荷を検出し、マイクロコンピュータを介して電
動式膨張弁の開度を開く方向に制御し、吐出温度の上昇
およびコンプレッサの損傷を防ぐようにしたものである
。[4 Summary of the Invention] The present defense detects an overload of the compressor using an overload detection device provided in the circuit, controls the opening of the electric expansion valve via a microcomputer in the direction of opening, and adjusts the discharge temperature. This prevents the air from rising and damaging the compressor.
以下本イ６明の一実施例を図面につき説明する。 An embodiment of the present invention will be described below with reference to the drawings.
な、ｉ−第２図においてＡ１図と同一部材については同
一符号を付す。In Fig. 2, the same members as in Fig. A1 are given the same reference numerals.
第２図において符号Ｈ１は、室外側熱交換器ｌと室内ｌ
ｌｌ１ｌ熱交換器２を結ぶ回路であって、この回路＋（
ｌｌ’ｌｊコンプレッサ４および４方弁１］が配置され
ている。すなわち上記冷凍サイクルは、４方弁１１の作
動で冷媒流路が反対になるヒートポンプ式冷凍サイクル
を構成している。In FIG. 2, the symbol H1 indicates the outdoor heat exchanger l and the indoor heat exchanger l.
This circuit connects ll1l heat exchanger 2, and this circuit +(
ll'lj compressor 4 and four-way valve 1] are arranged. That is, the above-mentioned refrigeration cycle constitutes a heat pump type refrigeration cycle in which the refrigerant flow path is reversed by the operation of the four-way valve 11.
一方上記軍動式膨張弁６にけ、開度を制御するためのマ
イクロコンピュータ１２が接続されており、このマイク
ロコンピュータ１２ケ、回路１０のコンプレッサ４の吐
出側に設けた吐出温度センサ１３の検出信号により電動
式膨張弁６の弁開度を調節し得るようにしている。この
弁開度の調節は、蓋発器と出口側湛観の温度差を検出信
号と１−るいわゆるヌーバーヒート制御方法によっても
よい。On the other hand, a microcomputer 12 for controlling the opening degree is connected to the military expansion valve 6, and a discharge temperature sensor 13 provided on the discharge side of the compressor 4 of the circuit 10 detects the temperature of the discharge temperature sensor 13. The valve opening degree of the electric expansion valve 6 can be adjusted by the signal. The valve opening degree may be adjusted by a so-called nouverheat control method in which the temperature difference between the lid generator and the exit side tank is used as a detection signal.
なお電動式膨張弁６け、付設したモータの動作により弁
の開度を０から１００％（全閉から全開）まで調節し得
るものである。The opening of the six electric expansion valves can be adjusted from 0 to 100% (from fully closed to fully open) by operating an attached motor.
他方上記マイクロコンピュータ１２にＶ′：ｓ犯、８図
に示すプログラムが絹み込捷れている。On the other hand, the program V':s shown in FIG. 8 is corrupted in the microcomputer 12.
すなわちコンプレッサ４が起動した際に、電動式膨張弁
６の開度は所定値に保たれ、空調負荷に対してコンプレ
ッサ４の吐出温度が設定値Ｔｃｌ、になるように制御さ
れる。That is, when the compressor 4 is started, the opening degree of the electric expansion valve 6 is maintained at a predetermined value, and the discharge temperature of the compressor 4 is controlled to be the set value Tcl with respect to the air conditioning load.
そして、Ｓ！、〃Ｉ！、な負荷の増大が生じ、コンプレ
ッサ４の吐出温度が急激に上昇した際には、すなわち設
定値Ｔ（１，に達すると、電動式膨張弁６の開度を全開
にし液バツク状態を大きくして吐出温度を低下させる。And S! ,〃I! When a load increases and the discharge temperature of the compressor 4 rises rapidly, that is, when it reaches the set value T (1), the electric expansion valve 6 is fully opened to increase the liquid back up state. to lower the discharge temperature.
ここでいう全開とげ必要に応じてけ開度を拡〈方向に大
きくすることを含むものである。Here, the full opening includes increasing the degree of opening in the expansion direction as required.
さらに吐出渦紋が設定値Ｔｄ、まで上昇したら、コンプ
レッサ４の運転を停止するに設定されている。この設定
１１ｒｊ、 Ｔ ｄｓの記憶はクリアされるまでコンピ
ュータに残り、したがってコンプレッサ４の４ｔ］起楯
が制限される。Furthermore, when the discharge vortex rises to a set value Td, the operation of the compressor 4 is set to be stopped. The memory of this setting 11rj, Tds remains in the computer until cleared, thus limiting the 4t] activation of the compressor 4.
なお上記笑施例でに、過負荷検出して吐出温度を検出信
号として電動式膨張弁の開度を制御したが、コンプレッ
サの吐出圧力、コンプレッサの運転市流を検出信号とし
ても同じようにｆｌｕ！御し得るのけもちろんである。In the above embodiment, the opening degree of the electric expansion valve was controlled using the overload detection and discharge temperature as the detection signal, but the flu ! Of course you can control it.
〔５へ明の効果〕
以上述べ１ｒように本発明によれば、急激な負荷′４＜
動により吐出温度が急上昇しても、コンプレッサに過大
な負荷をかけることなく運転ケ続けるこトカでき、また
マイクロコンピュータに、吐出温度が設定値を超えたら
コンプレッサを停止させるプログラムを組み込めば、異
常発生時によるコンプレッサめ損傷を防き得る等の効果
を嬰する。[Advantageous effect to 5] As mentioned above, according to the present invention, sudden load '4<
Even if the discharge temperature suddenly rises due to a sudden change in the discharge temperature, the compressor can continue to operate without putting an excessive load on it.Also, by incorporating a program into the microcomputer that stops the compressor when the discharge temperature exceeds a set value, abnormalities can be prevented. This has the effect of preventing damage to the compressor due to time.
第１図は従来の冷凍サイクルを示−４−図、弟２図に本
発明による冷凍サイクルのｉｌｉｌ．ｌ ｆｉｌ４１方
法を示す図、第８し１は、同制御方法をプログラムとし
て示す１シ１である。
４・・・コンブフッ廿、６・・・電動式膨張弁、１２・
・・マイクロコンピュータ、Ｔｄ，、Ｔｄ，、Ｔｅｌ，
・・・！ｉｉ２ ｋ’Ｅ値。
出願人代理人 猪 股 清Fig. 1 shows a conventional refrigeration cycle, and Fig. 2 shows a refrigeration cycle according to the present invention. Figure 8 1 shows the l fil41 method and shows the same control method as a program. 4... Combination valve, 6... Electric expansion valve, 12.
...Microcomputer, Td,, Td,, Tel,
...! ii2 k'E value. Applicant's agent Kiyoshi Inomata
Claims (1)
ンプレッサを、他方の回路に電動式膨張弁を設けて構成
した冷凍サイクルにおいて、電動、式膨張弁に、開度を
制御するためのマイクロコンピュータを接続し、回路に
設けたコンプレッサの過負荷検出装置の検出信号をマイ
クロコンピュータに送り、知５動式膨張弁全コンブＶツ
サ過負荷時に開く方向に動かすようにしたことを特徴と
する冷凍サイクルの制御方法。In a refrigeration cycle configured with a compressor in one circuit connecting the indoor heat exchanger and the indoor heat exchanger and an electric expansion valve in the other circuit, this is used to control the opening of the electric expansion valve. A microcomputer is connected to the compressor, and a detection signal from a compressor overload detection device provided in the circuit is sent to the microcomputer, so that the five-acting expansion valve is moved in the direction of opening in the event of an overload. refrigeration cycle control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15747683A JPS6050349A (en) | 1983-08-29 | 1983-08-29 | Method of controlling refrigeration cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15747683A JPS6050349A (en) | 1983-08-29 | 1983-08-29 | Method of controlling refrigeration cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6050349A true JPS6050349A (en) | 1985-03-20 |
Family
ID=15650511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15747683A Pending JPS6050349A (en) | 1983-08-29 | 1983-08-29 | Method of controlling refrigeration cycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050349A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6380167A (en) * | 1986-09-19 | 1988-04-11 | 松下電器産業株式会社 | Heat pump hot-water supply machine |
| JPH01134167A (en) * | 1987-11-19 | 1989-05-26 | Matsushita Electric Ind Co Ltd | Expansion valve controller for air conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512848U (en) * | 1974-06-21 | 1976-01-10 | ||
| JPS5532941B1 (en) * | 1973-06-08 | 1980-08-28 | ||
| JPS5749106U (en) * | 1980-09-04 | 1982-03-19 |
-
1983
- 1983-08-29 JP JP15747683A patent/JPS6050349A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532941B1 (en) * | 1973-06-08 | 1980-08-28 | ||
| JPS512848U (en) * | 1974-06-21 | 1976-01-10 | ||
| JPS5749106U (en) * | 1980-09-04 | 1982-03-19 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6380167A (en) * | 1986-09-19 | 1988-04-11 | 松下電器産業株式会社 | Heat pump hot-water supply machine |
| JPH01134167A (en) * | 1987-11-19 | 1989-05-26 | Matsushita Electric Ind Co Ltd | Expansion valve controller for air conditioner |
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