JPS61272481A - Start control device for refrigerating cycle machinery - Google Patents
Start control device for refrigerating cycle machineryInfo
- Publication number
- JPS61272481A JPS61272481A JP60114653A JP11465385A JPS61272481A JP S61272481 A JPS61272481 A JP S61272481A JP 60114653 A JP60114653 A JP 60114653A JP 11465385 A JP11465385 A JP 11465385A JP S61272481 A JPS61272481 A JP S61272481A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- compressor
- power supply
- circuit
- central processing
- 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
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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
Description
【発明の詳細な説明】
（発明の技術分野）
本発明は、例えば、空気調和機や冷蔵庫等による冷凍サ
イクル機器の電圧変動に伴う起動制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a start-up control device for refrigeration cycle equipment such as an air conditioner or a refrigerator due to voltage fluctuations.
一般に、インバータエアコンとしての空気調和機は、圧
縮機の起動時に過大な電流が流れた場合、過電圧センサ
で過電流を検出し、これで過電流保護回路を作動し、こ
れによって上記圧縮様の起動を一時的に中断し、一定時
間経過後、上記圧縮機を再起動するようになっている。Generally, in an air conditioner as an inverter air conditioner, if an excessive current flows when the compressor starts up, an overvoltage sensor detects the overcurrent, and this activates the overcurrent protection circuit, which causes the compression-like startup mentioned above. The compressor is temporarily interrupted and restarted after a certain period of time.
しかしながら、上述した家庭用の空気調和機における過
電流保護回路は、電流１００Ｖを基準にして設定されて
いるため、実際の使用電圧１００■から、何等かの原因
により、例えば、８０Ｖ又は１１０■へずれると、上記
過電流保護回路は、動作し易くなり、これに起因して、
起動性が低下し、再起同時でも起動できず、異常判定に
よる全面停止をするおそれがある。However, since the overcurrent protection circuit in the home air conditioner mentioned above is set based on a current of 100V, the actual operating voltage may change from 100V to 80V or 110V for some reason. If the overcurrent protection circuit shifts, the overcurrent protection circuit becomes more likely to operate, and due to this,
There is a risk that the startability will deteriorate, and the system will not be able to start even when restarting at the same time, resulting in a complete shutdown due to an abnormality determination.
即ち、圧縮機の起動時、電源電圧が何等かの原因により
電圧変動すると、第３図の電流と時間とのグラフに示さ
・れるように、短時間で高通電８！が流れるＡ型過電流
（Ａ型トルク）■と長時間で低過電流が流れる８型過電
流（Ｂ型トルク）■とがあるとき、過電流保護回路が動
作して、起動トリップし、再起動することが困難である
。That is, when the compressor is started, if the power supply voltage fluctuates due to some reason, as shown in the graph of current vs. time in Figure 3, a high current flow occurs in a short period of time. When there is an A-type overcurrent (A-type torque) that flows for a long time and an 8-type overcurrent (B-type torque) that causes a low overcurrent to flow for a long time, the overcurrent protection circuit is activated, causing a startup trip and restarting. Difficult to start.
又一方、インバータエアコンによる空気調和機の起動時
、圧縮機の運転周波数と出力電圧による周波数制御手段
は、ｆ／Ｖ＝一定、となる電圧と周波数との関係上、段
階的に増加するのを利用し、過電圧センサ及び過電流検
出回路によって検出し、再起動を図るようにした起動制
御装置は既に提案されている。On the other hand, when starting an air conditioner using an inverter air conditioner, the frequency control means based on the operating frequency of the compressor and the output voltage increases in stages due to the relationship between the voltage and frequency, where f/V = constant. A start-up control device has already been proposed that uses the overvoltage sensor and overcurrent detection circuit to perform detection and restart.
しかし、これは、最下限の周波数から最大限の周波数の
変更を検出するようになっているため、構成部品点数が
多くなり、組立が面倒になる等の難点がある。However, since this detects a change in frequency from the lowest frequency to the highest frequency, there are drawbacks such as an increase in the number of component parts and troublesome assembly.
本発明は、上述した難点を解消するために、例えば、空
気講和機における圧縮機の電源電圧が変化して起動トリ
ップを生じた時、起動トリップの電圧若しくは周波数を
検出し、変化した電ＷＡＷ１圧に対応して起動制御し、
再起動を円滑に動作するようにしたことを目的とする冷
凍サイクル機器の起動制御装置を提供するものである。In order to solve the above-mentioned difficulties, the present invention detects the voltage or frequency of the starting trip when the power supply voltage of the compressor in an air peace machine changes and causes a starting trip, and detects the changed electric power WAW1 voltage. Start-up control is performed in response to
The present invention provides a startup control device for refrigeration cycle equipment whose purpose is to smoothly restart the equipment.
（発明の概要）
本発明は、室外ユニットに中央処理装置及びインバータ
主回路を圧縮機へ接続するようにして設け、上記インバ
ータ主回路と電源回路との間に電圧センサを付設し、こ
の電圧センサに電圧検出回路を介して上記中央処理装置
を接続し、起動時の電圧若しくは周波数の変化に対応し
て圧縮機を再起動し得るように構成したものである。(Summary of the Invention) The present invention provides an outdoor unit with a central processing unit and an inverter main circuit connected to a compressor, a voltage sensor between the inverter main circuit and a power supply circuit, and a voltage sensor that connects the inverter main circuit to the compressor. The central processing unit is connected to the compressor via a voltage detection circuit, and the compressor is configured to be restarted in response to changes in voltage or frequency at startup.
（発明の実施例）
以下、本発明をインバータエアコンとしての空気調和機
に適用した図示の一実施例について説明する。(Embodiment of the Invention) Hereinafter, an illustrated embodiment in which the present invention is applied to an air conditioner as an inverter air conditioner will be described.
第１図において、符号１は、空気調和機における冷媒を
圧縮する圧縮機であって、この圧縮機１には、室外ユニ
ット２の室外制御基板に設けられる中央処理装置（Ｃ，
Ｐ、ｕ）３が接続されている。又、この中・実処理装置
３には、例えば、インバータ出力周波数制御回路、圧縮
機再起動３分遅延回路、Ｃ，Ｔ、 Ｒ３１１１１流保護
回路等が組込まれており、これらは、いずれも上記圧縮
機１を制御するようになっている。さらに、上記室外ユ
ニット２の室外制御基板には、インバータ主回路４が設
けられており、このインバータ主回路４には、直流電源
化するコンバータ部５及びインバータ部６が内蔵されて
おり、このコンバータ部５とインバータ部６との間には
、過電圧センサ７が介装されている。ざらに又、この過
電流センサ７は、上記圧縮機１に接続されており、この
圧縮機１は、インバータ主回路４によって接続を制御す
るようになっている。In FIG. 1, reference numeral 1 denotes a compressor that compresses refrigerant in an air conditioner, and this compressor 1 includes a central processing unit (C,
P, u) 3 are connected. In addition, this medium/actual processing device 3 includes, for example, an inverter output frequency control circuit, a compressor restart 3-minute delay circuit, a C, T, and R31111 style protection circuit, etc., all of which are as described above. The compressor 1 is controlled. Further, the outdoor control board of the outdoor unit 2 is provided with an inverter main circuit 4, and this inverter main circuit 4 has a built-in converter section 5 and an inverter section 6 for converting to DC power. An overvoltage sensor 7 is interposed between the section 5 and the inverter section 6. Additionally, the overcurrent sensor 7 is connected to the compressor 1, and the connection of the compressor 1 is controlled by the inverter main circuit 4.
一方、上記過電流センサ７は、過電流検出回路８を介し
て上記中央処理装置３へ接続されており、この過電圧セ
ンサ７は、起動時、過電流を検出゛し、これを過電流検
出回路８を介して上記中央処理装置３へ送信するように
なっている。On the other hand, the above-mentioned overcurrent sensor 7 is connected to the above-mentioned central processing unit 3 via an overcurrent detection circuit 8, and this overvoltage sensor 7 detects an overcurrent at the time of startup, and the overcurrent detection circuit detects the overcurrent. 8 to the central processing unit 3.
他方、上記インバータ主回路４のコンバータ部５と電源
回路９との間には、電圧センサ１０が付設されており、
この電圧センサ１０には電圧検出回路１１が上記中央処
理装置Ｆ３へ接続するようにして設けられている。On the other hand, a voltage sensor 10 is attached between the converter section 5 and the power supply circuit 9 of the inverter main circuit 4,
This voltage sensor 10 is provided with a voltage detection circuit 11 connected to the central processing unit F3.
なお、上記室外ユニット２の室外制御基板には、室内ユ
ニット１２の室外制御基板が連設されている。Note that the outdoor control board of the indoor unit 12 is connected to the outdoor control board of the outdoor unit 2.
従って、電源電圧１００■を基準にして設定された空気
講和機の通常の起動時、上記インバータ主回路５の過電
流センサ７が過大電流を検出すると、この検出信号を上
記過電流検出回路８を通して中央処理袋＠４へ送信し、
ここで、中央処理袋Ｍ４の各回路を動作し、上記圧縮機
１の起動を停止すると同時に、上記圧縮機１のモータを
再起動し得るようにして待機するようになっている。Therefore, when the overcurrent sensor 7 of the inverter main circuit 5 detects an overcurrent during normal startup of the air peace machine, which is set based on the power supply voltage of 100 mm, this detection signal is passed through the overcurrent detection circuit 8. Send to central processing bag @4,
Here, each circuit of the central processing bag M4 is operated to stop the activation of the compressor 1, and at the same time, the motor of the compressor 1 is placed on standby so that it can be restarted.
次に、上記電源回路９による供給電圧が、何等かの原因
で、例えば、８０Ｖ程度の低電圧になると、上記圧縮機
１のモータトルクが不足するため、この圧縮機１は、起
動できない。この場合、上記電源回路９に付設された電
圧センサ１０がこれを検出し、この検°出信号を電圧検
出回路１１及び中央処理装置３によって、前記Ｂ型過電
流■の動作が働き、再起動時、周波数を上げて起動電圧
を高くする（第３図及び第４図参照）。 。Next, if the voltage supplied by the power supply circuit 9 becomes low, for example, about 80V for some reason, the compressor 1 cannot be started because the motor torque of the compressor 1 is insufficient. In this case, the voltage sensor 10 attached to the power supply circuit 9 detects this, and this detection signal is sent to the voltage detection circuit 11 and the central processing unit 3 to activate the B-type overcurrent operation and restart the system. At this time, the frequency is increased to increase the starting voltage (see Figures 3 and 4). .
又一方、上記電源回路９による供給電圧が、何等かの原
因で、例えば、１１５ｖ程度の高電圧になると、上記圧
縮機１のモータには、回転前に過電流が流れるため、こ
の場合、上記電圧センサ１０がこれを検出し、この検出
信号を電圧検出回路１１及び中央処理装置３によって前
記Ａ型過電流■の動作が働き、再起動時、周波数を下げ
て起動電圧を低くするようになっている。On the other hand, if the voltage supplied by the power supply circuit 9 becomes a high voltage of, for example, 115V for some reason, an overcurrent will flow through the motor of the compressor 1 before it rotates. The voltage sensor 10 detects this, and this detection signal is used by the voltage detection circuit 11 and central processing unit 3 to activate the type A overcurrent operation (2), which lowers the frequency and lowers the starting voltage when restarting. ing.
即ち、本発明は、何等かの低電圧になると、圧縮機１の
モータトルクが不足するため、この圧縮機１を円滑に再
起動するように、電源回路９に付設された電圧センサ１
０で低電圧を検出し、この検出信号を電圧検出回路１１
及び中央処理袋ＷＩ３によってＢ型過電流Ｉ（Ｂ型トル
ク）の動作が働き、周波数を上げて起動電圧を高くする
。That is, in the present invention, since the motor torque of the compressor 1 becomes insufficient when the voltage becomes low, the voltage sensor 1 attached to the power supply circuit 9
0 to detect a low voltage, and send this detection signal to the voltage detection circuit 11.
The B-type overcurrent I (B-type torque) is operated by the central processing bag WI3 to increase the frequency and the starting voltage.
他方、高電圧になると、過電流保護回路が動作し易くな
るため、上記電源回路９に付設された電圧センサ１０が
これを検出し、この検出信号を電圧検出回路１１及び中
央処理装置３でＡ型過電流Ｉ（Ａ型トルク）の動作が働
き、周波数を下げて起動電圧を低くする。On the other hand, when the voltage becomes high, the overcurrent protection circuit becomes more likely to operate, so the voltage sensor 10 attached to the power supply circuit 9 detects this, and this detection signal is sent to the voltage detection circuit 11 and the central processing unit 3. The type overcurrent I (type A torque) operation works, lowering the frequency and lowering the starting voltage.
このようにして本発明では、電源電圧が変化して起動ト
リップを生じた時、起動トリップの電圧を電圧センサで
検出し、変化した電圧に応じて起動制御し、再起動する
ようになっている。In this way, in the present invention, when the power supply voltage changes and a startup trip occurs, the voltage of the startup trip is detected by the voltage sensor, and the startup is controlled according to the changed voltage to restart the device. .
因に、本発明は、起動トリップの電圧を電圧センサ１０
及び電圧検出回路１１で検出するように説明したけれど
も、本発明の要旨を変更しない範囲内で、例えば、周波
数の変化を検出する周波数制御回路のようなものにして
もよい。Incidentally, in the present invention, the starting trip voltage is detected by the voltage sensor 10.
Although it has been described that the detection is performed using the voltage detection circuit 11, it is also possible to use a frequency control circuit that detects a change in frequency, for example, without departing from the gist of the present invention.
なお、第２図は、本発明のフローチャートを示すね図で
あり、図中ｎ。は２以上の整数であり、ｎは、圧縮機の
再起動回数を示し、ｆ 、ｆ は周波数を示してお
り、本発明は第２図の７０−ヂヤートにならって変化し
た電圧や周波数に応じて起動制御し、再起動するように
なっている。In addition, FIG. 2 is a diagram showing a flowchart of the present invention, and in the figure, n. is an integer of 2 or more, n indicates the number of times the compressor is restarted, and f and f indicate the frequency. It is designed to control startup and restart.
以上述べたように本発明によれば、室外ユニット２に中
央処理袋Ｍ３及びインバータ主回路４を圧縮機１へ接続
するようにして設け、上記インバータ主回路４と電源回
路９との間に電圧センサ１０を付設し、この電圧センサ
１０に電圧検出回路１１を介して上記中央処理装置３を
接続し、起動時の電圧若しくは周波数の変化に対応して
圧縮機１を再起動するようになっているので、電源電圧
に対する制約を解消することができると共に、円滑に再
起動することができる。As described above, according to the present invention, the central processing bag M3 and the inverter main circuit 4 are provided in the outdoor unit 2 so as to be connected to the compressor 1, and the voltage between the inverter main circuit 4 and the power supply circuit 9 is A sensor 10 is attached, and the central processing unit 3 is connected to the voltage sensor 10 via a voltage detection circuit 11, so that the compressor 1 is restarted in response to changes in voltage or frequency at startup. Therefore, it is possible to eliminate restrictions on the power supply voltage and to restart the device smoothly.
第１図は、本発明による冷凍サイクルの起動制御装置の
縮図、第２図は、本発明のフローチャー１・・・圧縮機
、３・・・中央処理装置、４・・・インバータ主回路、
９・・・電源回路、１０・・・電圧センナ、１１・・・
電圧検出回路。FIG. 1 is a miniature diagram of a refrigeration cycle startup control device according to the present invention, and FIG. 2 is a flowchart of the present invention 1...Compressor, 3...Central processing unit, 4...Inverter main circuit,
9...Power supply circuit, 10...Voltage sensor, 11...
Voltage detection circuit.
Claims (1)
を圧縮機へ接続するようにして設け、上記インバータ主
回路と電源回路との間に電圧センサを付設し、この電圧
センサに電圧検出回路を介して上記中央処理装置を接続
し、起動時の電圧若しくは周波数の変化に対応して圧縮
機を再起動し得るようにしたことを特徴とする冷凍サイ
クル機器の起動制御装置。 ２、圧縮機起動時、過電流を検出して圧縮機の起動を一
旦中断し、再び、起動を行う制御装置を備えたことを特
徴とする特許請求の範囲第１項記載の冷凍サイクル機器
の起動制御装置。[Claims] 1. A central processing unit and an inverter main circuit are provided in the outdoor unit so as to be connected to the compressor, a voltage sensor is attached between the inverter main circuit and the power supply circuit, and a voltage sensor is provided between the inverter main circuit and the power supply circuit. A startup control device for refrigeration cycle equipment, characterized in that the central processing unit is connected to the central processing unit via a voltage detection circuit, and the compressor can be restarted in response to changes in voltage or frequency at startup. 2. The refrigeration cycle equipment according to claim 1, further comprising a control device that detects an overcurrent when starting the compressor, temporarily interrupts the starting of the compressor, and starts the compressor again. Start-up control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60114653A JPS61272481A (en) | 1985-05-28 | 1985-05-28 | Start control device for refrigerating cycle machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60114653A JPS61272481A (en) | 1985-05-28 | 1985-05-28 | Start control device for refrigerating cycle machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61272481A true JPS61272481A (en) | 1986-12-02 |
Family
ID=14643188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60114653A Pending JPS61272481A (en) | 1985-05-28 | 1985-05-28 | Start control device for refrigerating cycle machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61272481A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496157A (en) * | 1994-12-21 | 1996-03-05 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
| US5518373A (en) * | 1993-02-16 | 1996-05-21 | Zexel Corporation | Compressor start-up controller |
| WO2019087566A1 (en) * | 2017-10-30 | 2019-05-09 | ダイキン工業株式会社 | Current detection device |
-
1985
- 1985-05-28 JP JP60114653A patent/JPS61272481A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5518373A (en) * | 1993-02-16 | 1996-05-21 | Zexel Corporation | Compressor start-up controller |
| US5496157A (en) * | 1994-12-21 | 1996-03-05 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
| USRE37837E1 (en) * | 1994-12-21 | 2002-09-10 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
| WO2019087566A1 (en) * | 2017-10-30 | 2019-05-09 | ダイキン工業株式会社 | Current detection device |
| JP2019082357A (en) * | 2017-10-30 | 2019-05-30 | ダイキン工業株式会社 | Electric current detection device |
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