JPS58176487A - Operation control of air-conditioning machine - Google Patents
Operation control of air-conditioning machineInfo
- Publication number
- JPS58176487A JPS58176487A JP57058859A JP5885982A JPS58176487A JP S58176487 A JPS58176487 A JP S58176487A JP 57058859 A JP57058859 A JP 57058859A JP 5885982 A JP5885982 A JP 5885982A JP S58176487 A JPS58176487 A JP S58176487A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- potential
- power failure
- pin
- momentary power
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/70—Safety, emergency conditions or requirements
- F04C2270/72—Safety, emergency conditions or requirements preventing reverse rotation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、空気調和機の運転制御方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the operation of an air conditioner.
一般に空気調和機の基本構成は、第１図に示すように、
冷凍サイクル系を、圧縮機１と室外熱交換器２と減圧装
置３および室内熱交換器４を環状に連結し各熱交換器２
，４にそれぞれ送風ファン６．６を対向して配置し、そ
して制御回路７により室内の空調状態を検知してリレー
接点８を作動させることにより運転の制御を行っている
。また 。Generally, the basic configuration of an air conditioner is as shown in Figure 1.
In the refrigeration cycle system, a compressor 1, an outdoor heat exchanger 2, a pressure reducing device 3, and an indoor heat exchanger 4 are connected in an annular manner, and each heat exchanger 2
. Also .
圧縮機１は、第２図に示すように、シリンダ１１内にピ
ストン１２および１４を配設し、さらにベーンばね１７
により常時突出するように付勢されたベーン１３を設け
てシリンダ１１の内部を低圧室１５と高圧室１６に仕切
った構造となっている。As shown in FIG. 2, the compressor 1 includes pistons 12 and 14 disposed within a cylinder 11, and a vane spring 17.
The interior of the cylinder 11 is partitioned into a low pressure chamber 15 and a high pressure chamber 16 by providing a vane 13 that is always urged to protrude.
そして矢印１７はピストン１２の回転方向を示している
。An arrow 17 indicates the direction of rotation of the piston 12.
ところで、かかる構造からなる従来の空気調和機は、圧
縮機１の運転中において落雷などにより電源９が瞬間的
に停電となった場合、圧縮機１も瞬間的に停止したにも
かかわらず瞬間的に再起動されてしまう。かかる現象が
特に圧縮機１の冷媒圧縮途中に発生すると、圧縮機１の
逆転あるいは圧縮機１の破損といった不都合が発生する
ものであった。しかし従来はこの問題に対しての対策は
講じられておらず、何らかの対策手段が要求されている
。By the way, in the conventional air conditioner having such a structure, if the power supply 9 is momentarily cut off due to a lightning strike while the compressor 1 is in operation, even though the compressor 1 has also momentarily stopped, It will be restarted. If such a phenomenon occurs particularly during refrigerant compression by the compressor 1, problems such as reverse rotation of the compressor 1 or damage to the compressor 1 may occur. However, conventionally, no measures have been taken to deal with this problem, and some countermeasures are required.
本発明は、上記従来の問題点を解消するもので、電源の
瞬間的な停電を検出する瞬時停電検出回路を設け、この
瞬時停電検出回路の停電の検出により、圧縮機の運転を
一定時間停止するようにしたものである。The present invention solves the above-mentioned conventional problems by providing an instantaneous power failure detection circuit that detects a momentary power failure, and upon detection of a power failure by this instantaneous power failure detection circuit, the operation of the compressor is stopped for a certain period of time. It was designed to do so.
以下、本発明の一実施例を添付図面の第３図。Hereinafter, one embodiment of the present invention will be described with reference to FIG. 3 of the accompanying drawings.
第４図により説明する。ここで冷凍サイクル系は第１図
と同じであるため説明を省略する。This will be explained with reference to FIG. Here, the refrigeration cycle system is the same as that shown in FIG. 1, so a description thereof will be omitted.
壕ず第３図により制御回路について説明する。The control circuit will be explained with reference to FIG.
同図において２１は安定化電源回路で、商用電源９トラ
ンス２２．ダイオードブリッジ２３．平滑コンデンサ２
４ 、２５ 、ツェナーダイオード２６゜抵抗２了より
なり、本制御回路の直流電源となる。In the figure, 21 is a stabilized power supply circuit, including a commercial power supply 9 transformer 22. Diode bridge 23. Smoothing capacitor 2
It consists of 4, 25, Zener diodes, 26° resistors, and 2 resistors, and serves as a DC power source for this control circuit.
３１は温度検出回路で、感温抵抗素子３２．抵抗３３よ
りなり、外気温度の変化を接続点３４の電圧変化として
取り出すものである。４１は基準電圧設定回路で、抵抗
４２．４３よりなり、接続点４４においてＩＣ５２の基
準の電圧を設定するものである。５１は圧縮機駆動制御
回路で、Ｉ Ｃ５２゜抵抗５３．トランジスタ５４およ
び圧縮機１を駆動制御するリレー接点８のリレーコイル
５５より構成されている。前記ＩＣ５２は、前記接続点
３４゜４４０電圧をそれぞれ１番ビン２番ビンの入力と
し、その出力信号を８番ピンより出力している。31 is a temperature detection circuit, which includes a temperature-sensitive resistance element 32. It consists of a resistor 33 and extracts changes in outside temperature as voltage changes at a connection point 34. Reference numeral 41 denotes a reference voltage setting circuit, which is composed of resistors 42 and 43, and is used to set the reference voltage of the IC 52 at the connection point 44. 51 is a compressor drive control circuit, which includes an IC 52° resistor 53. It is composed of a transistor 54 and a relay coil 55 of a relay contact 8 that drives and controls the compressor 1. The IC 52 inputs the 34°440 voltage at the connection point to the 1st and 2nd bins, respectively, and outputs the output signal from the 8th pin.
まだこのＩＣ５２は、通常１番ピンの電位が２番ピンの
電位よりも高い時に、８番ピンに圧縮機１の運転信号を
出力し、２番ピンの電位が１番ピンの電位より高い時に
は圧縮機１の停止信号を出力する。またこのＩＣ６２は
、一度圧縮機１に停止信号を出力した場合は、一定時間
経過するまでは１査、２番ピンの入力状態にかかわらず
、８番ピンは停止信号を出力するよう構成されている。This IC52 normally outputs the operating signal for the compressor 1 to pin 8 when the potential of pin 1 is higher than the potential of pin 2, and when the potential of pin 2 is higher than the potential of pin 1. A stop signal for the compressor 1 is output. Furthermore, once a stop signal is output to the compressor 1, the IC 62 is configured so that the 8th pin outputs a stop signal until a certain period of time has elapsed, regardless of the input status of the 1st and 2nd pins. There is.
６１は瞬時停電検出回路で、抵抗６２ 、６３ 、６４
。61 is a momentary power failure detection circuit, and resistors 62, 63, 64
.
ダイオード６５．６６コンデンサ６７よりなり、商用電
源９の瞬時停電を検知して前記ＩＣ５２の１番ピンへ信
号を出力するものである。It consists of a diode 65, a capacitor 67, and detects a momentary power outage of the commercial power supply 9 and outputs a signal to the No. 1 pin of the IC 52.
また前記ダイオード６６は、瞬時停電を検知する動作の
安定化のだめのもので、リップ化分を含んだ接続点６８
の電圧波形７１（第４図に示す）をあるレベル以上では
クリップし、瞬時停電が生じてから瞬時停電を検知する
までの時間ｔｓを一定以下に保つものである。The diode 66 is for stabilizing the operation of detecting instantaneous power outage, and is connected to the connection point 68 including the lip portion.
The voltage waveform 71 (shown in FIG. 4) is clipped above a certain level, and the time ts from when a momentary power outage occurs to when the momentary power outage is detected is kept below a certain level.
次に、上記構成からなる制御回路の動作について説明す
る。Next, the operation of the control circuit having the above configuration will be explained.
１ず通常の冷房運転時は、圧縮機１を駆動することによ
り第１図に示す冷凍サイクルにおいて冷媒が圧縮機１−
室外熱交換器２−減圧装置３−室内熱交換器−圧縮機１
という順に流れ冷房が行なわれる。そして感温抵抗素子
３２が運転停止温度を検知した時、前記接続点３４の電
位が接続点４４の電位より低くなり、ＩＣ５２の８番ピ
ンより圧縮機１の停止信号が出力され、第１図のリレー
の接点８が開き、圧縮機１は停止する。′この８査ピン
より出力される停止信号は、第２図に示す圧縮機１のン
リング部において、高圧室１６と低圧室１６の圧力差が
、はぼ零になるまで（約３分）続けられる。1. During normal cooling operation, by driving the compressor 1, refrigerant flows through the compressor 1-1 in the refrigeration cycle shown in FIG.
Outdoor heat exchanger 2 - pressure reduction device 3 - indoor heat exchanger - compressor 1
Cooling is performed in this order. When the temperature-sensitive resistance element 32 detects the operation stop temperature, the potential at the connection point 34 becomes lower than the potential at the connection point 44, and a stop signal for the compressor 1 is output from pin 8 of the IC 52, as shown in FIG. The contact 8 of the relay opens and the compressor 1 stops. 'The stop signal output from this 8-spin pin continues until the pressure difference between the high pressure chamber 16 and the low pressure chamber 16 becomes almost zero (about 3 minutes) in the ring section of the compressor 1 shown in Fig. 2. It will be done.
そして室温が再び上昇し、前記感温抵抗素子３２が圧縮
機１の運転温度を検知した時、前記接続点３４の電位が
前記接続点４４の電位より高くなり、前記ＩＣ５２の８
番ピンに圧縮機１の運転信号が出力され、トランジスタ
６４．リレーコイル５５を介して第１図のリレー接点８
が閉じ、圧縮機１が再駆動される。Then, when the room temperature rises again and the temperature-sensitive resistance element 32 detects the operating temperature of the compressor 1, the potential of the connection point 34 becomes higher than the potential of the connection point 44, and the
The operating signal of the compressor 1 is output to the transistor 64. Relay contact 8 in FIG. 1 via relay coil 55
is closed and the compressor 1 is driven again.
６ペ 以下、上述の動作を繰返して冷房が行われる。6pe Thereafter, the above-described operation is repeated to perform cooling.
次に、冷房運転時において落雷などにより商用電源９に
瞬間的な停電が生じた場合について第４図により説明す
る。ここで、第４図は商用電源９の電圧波形と、制御回
路７内におりる各部の電圧波形を示すもので、縦軸には
、商用電源９の電圧■１．接続点６８ノ電圧ｖ２．接続
点３４ノ電圧（工Ｃ５２の１番ピンの入力電圧）ｖ３．
接続点４４の電圧■４がそれぞれ示され、横軸には時間
が示されている。そしてＴは商用電源９において瞬間的
に生じた停電の時間を示す。Next, a case where a momentary power outage occurs in the commercial power supply 9 due to lightning or the like during cooling operation will be described with reference to FIG. 4. Here, FIG. 4 shows the voltage waveform of the commercial power supply 9 and the voltage waveforms of various parts within the control circuit 7, and the vertical axis shows the voltage of the commercial power supply 9. Voltage at connection point 68 v2. Voltage at connection point 34 (input voltage at pin 1 of connector C52) v3.
The voltage (4) at the connection point 44 is shown, and time is shown on the horizontal axis. Further, T indicates the time of an instantaneous power outage in the commercial power supply 9.
第４図において、時間ｔ１で電源の瞬時停電が生じた場
合、瞬時停電検出回路６１における接続点６８の電位は
、ｖ２の波形で示すように降下し、時間ｔ２においてダ
イオード６６の陽極の電位より約０．ＴＶ低下した所で
ダイオード６５が導通となりＩＣ５２の１番ピンの入力
である接続点３４の電位はｖ３の波形で示すように降下
する。しかる後の時間ｔ３においてＩＣ５２の２番ピン
の入力である接続点４４の電位■４よりも低下した時点
で、前述したＩＣ５２の動作のとおり８番ピンからは圧
縮機１の停止信号が出力され、その結果第１図に示すリ
レー接点８が開き、圧縮機１は停止することになる。こ
の停止時間は、通常の冷房運転時の温度制御のだめの圧
縮機１の停止と同様約３分間である。In FIG. 4, when a momentary power failure occurs at time t1, the potential at connection point 68 in momentary power failure detection circuit 61 drops as shown by the waveform v2, and at time t2, the potential at connection point 68 drops below the potential at the anode of diode 66 at time t2. Approximately 0. When the TV drops, the diode 65 becomes conductive, and the potential at the connection point 34, which is the input to the No. 1 pin of the IC 52, drops as shown by the waveform v3. Subsequently, at time t3, when the potential of the connection point 44, which is the input of the second pin of the IC 52, becomes lower than ■4, a stop signal for the compressor 1 is output from the eighth pin as described above in the operation of the IC 52. As a result, the relay contact 8 shown in FIG. 1 opens, and the compressor 1 stops. This stoppage time is about 3 minutes, similar to the stoppage of the compressor 1 for temperature control during normal cooling operation.
したがって、特に夏期におこりやすい落雷により商用電
源９に瞬間的な停電が発生しても、ＩＣ５２により一定
時間圧縮機１′ｆ０：停止するため、瞬間的に電源が再
印加されても圧縮機１が逆転することもなく、圧縮機１
の破損といった事故が確実に防止きれる。Therefore, even if a momentary power outage occurs in the commercial power supply 9 due to lightning strikes, which are likely to occur especially in the summer, the compressor 1'f0: will be stopped for a certain period of time by the IC52, so even if the power is momentarily reapplied, the compressor 1'f0: is not reversed, compressor 1
Accidents such as damage to the equipment can be definitely prevented.
なお、本実施例においては、冷房運転の場合について説
明したが、暖房運転時において何らかの原因により商用
電源９が瞬間的に停電あるいは停電に近い電圧まで降下
しても同様の作用効果が期待できる。Although the present embodiment has been described for the case of cooling operation, the same effects can be expected even if the commercial power source 9 momentarily drops to a power outage or a voltage close to a power outage for some reason during heating operation.
上記実施例より明らかなように、本発明における空気調
和機の運転制御方法は、冷凍サイクルを構成する圧縮機
の運転制御装置に、圧縮機電源の瞬間的な停電検出回路
を設け、この瞬時停電検出回路の瞬時停電検出により前
記圧縮機の運転を一定時間停止するようにしたもので、
落雷などの事故により圧縮機電源に瞬間的な停電が発生
すると、圧縮機を一定時間停止するため、従来問題とな
っていた圧縮機の逆転といった事故が防止でき、これに
起因する圧縮機の破損事故も防止できるなど、種々の利
点を有するものである。As is clear from the above embodiments, the air conditioner operation control method according to the present invention is such that the compressor operation control device constituting the refrigeration cycle is provided with a circuit for detecting a momentary power failure of the compressor power supply. The compressor is configured to stop operating for a certain period of time when the detection circuit detects a momentary power outage.
When a momentary power outage occurs in the compressor power supply due to an accident such as a lightning strike, the compressor is stopped for a certain period of time, which prevents accidents such as reversing of the compressor, which was a problem in the past, and reduces compressor damage caused by this. It has various advantages such as being able to prevent accidents.
第１図は空気調和機の基本構成を示す冷凍サイクル図、
第２図は同空気調和機における圧縮機のシリンダ内の概
略構成図、第３図は本発明の一実施例における空気調和
機の制御回路図、第４図は同空気調和機における瞬時停
電発生時の各位置にかおける電圧の変動状態を示す説明
図である。
１・・・・・・圧縮機、７・・・・・・制御回路、６１
・・・・・・瞬時停電検出回路。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
２
第３図
ｆ
Ｉ
Ｌ−−−−一−＼−一−−−−−−一一一」ｆFigure 1 is a refrigeration cycle diagram showing the basic configuration of an air conditioner.
Fig. 2 is a schematic diagram of the inside of the cylinder of the compressor in the air conditioner, Fig. 3 is a control circuit diagram of the air conditioner according to an embodiment of the present invention, and Fig. 4 is a momentary power outage in the air conditioner. FIG. 3 is an explanatory diagram showing the state of voltage fluctuation at each position. 1... Compressor, 7... Control circuit, 61
...Momentary power failure detection circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 2 Figure 3 f I L----1-\-1----111''f
Claims (1)
機電源の瞬間的な停電を検出する瞬時停電検出回路を設
け、この瞬時停電検出回路の瞬時停電検出により前記圧
縮機の運転を一定時間停止するようにした空気調和機の
運転制御方法０The operation control device of the compressor that constitutes the refrigeration cycle is provided with a momentary power failure detection circuit that detects a momentary power failure of the compressor power supply, and the operation of the compressor is stopped for a certain period of time upon detection of a momentary power failure by this momentary power failure detection circuit. Air conditioner operation control method 0
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57058859A JPS58176487A (en) | 1982-04-07 | 1982-04-07 | Operation control of air-conditioning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57058859A JPS58176487A (en) | 1982-04-07 | 1982-04-07 | Operation control of air-conditioning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58176487A true JPS58176487A (en) | 1983-10-15 |
| JPH0261633B2 JPH0261633B2 (en) | 1990-12-20 |
Family
ID=13096427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57058859A Granted JPS58176487A (en) | 1982-04-07 | 1982-04-07 | Operation control of air-conditioning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58176487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974198A (en) * | 2019-04-10 | 2019-07-05 | 珠海格力电器股份有限公司 | Air-conditioner set power down discrimination method, device and air-conditioning |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112017A (en) * | 1990-09-03 | 1992-04-14 | Meiki Co Ltd | Automatically centralizing lubrication device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5563343A (en) * | 1978-10-31 | 1980-05-13 | Matsushita Electric Ind Co Ltd | Controlling device for air conditioner |
-
1982
- 1982-04-07 JP JP57058859A patent/JPS58176487A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5563343A (en) * | 1978-10-31 | 1980-05-13 | Matsushita Electric Ind Co Ltd | Controlling device for air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974198A (en) * | 2019-04-10 | 2019-07-05 | 珠海格力电器股份有限公司 | Air-conditioner set power down discrimination method, device and air-conditioning |
| CN109974198B (en) * | 2019-04-10 | 2020-05-26 | 珠海格力电器股份有限公司 | Air conditioning unit power failure identification method and device and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0261633B2 (en) | 1990-12-20 |
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