JPS62107697A - Controller for air conditioner - Google Patents
Controller for air conditionerInfo
- Publication number
- JPS62107697A JPS62107697A JP60245649A JP24564985A JPS62107697A JP S62107697 A JPS62107697 A JP S62107697A JP 60245649 A JP60245649 A JP 60245649A JP 24564985 A JP24564985 A JP 24564985A JP S62107697 A JPS62107697 A JP S62107697A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- reverse phase
- photocoupler
- protection device
- protection
- 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
Landscapes
- Stopping Of Electric Motors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、特に電動圧縮機の保護機能を備えた空気調
和機の制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention particularly relates to a control device for an air conditioner having a protection function for an electric compressor.
空気調和機の破割ｆｉｌ１機器であるロータリ一式の電
動圧縮機等は、逆回転すると圧縮機としての正常な動作
を行うことができないばかりか、逆回転をそのまま継続
すると、壊れてしまうこともある。A rotary electric compressor, which is a fil1 device in an air conditioner, not only cannot operate normally as a compressor if it is rotated in the opposite direction, but it may also be damaged if it continues to rotate in the opposite direction. .
そこで電動圧縮機の逆回転を防ｄ二して保護する必要が
ある。Therefore, it is necessary to protect the electric compressor from reverse rotation.
第６図はこの種の従来の電動圧縮機等の保護を行う空気
調和機の制御装置の基本ｔ？Ｉ成を示すブロック図で、
図において、１は冷・暖房、風速、温度設定等の切換）
桑作スイッチ入力回路、２は温度センサー等のセンサー
入力回路、３５よ高圧スイッチ、過電２ｉｔ継電器、低
圧スイッチ等の保護装置作動検知回路で、この保護装置
作動検知回路３は、逆（口防正器４の作動検知手段を有
している。５はマイクロコンピュータで、前記各回路等
からの入力条件を店に予め定められたプログラムに従っ
てファン、四方弁、電動圧縮機等の被制御Ｓ器６を制御
する。Figure 6 shows the basics of this type of conventional air conditioner control device that protects electric compressors, etc. In the block diagram showing the I configuration,
In the figure, 1 indicates switching between cooling/heating, wind speed, temperature settings, etc.)
Kuwazaku switch input circuit, 2 is a sensor input circuit such as a temperature sensor, 35 is a protection device activation detection circuit such as a high voltage switch, overcurrent 2IT relay, low voltage switch, etc. This protection device activation detection circuit 3 is a reverse (mouth protection) A microcomputer 5 detects the operation of a fan, a four-way valve, an electric compressor, etc., according to a program predetermined by the store, which inputs the input conditions from each of the circuits, etc. Control 6.
第７図は第６図の逆相防止器の作動検知手段４及び保８
ＩＩ作動検知回路３の具体例を示す電気結線図である。Figure 7 shows the operation detection means 4 and the protection unit 8 of the reverse phase preventer shown in Figure 6.
2 is an electrical wiring diagram showing a specific example of the II operation detection circuit 3. FIG.
従来の逆相防止器の作動検知手段４は市販されている専
用の逆相防止器を接続し、その接点を保護装置作動検知
回路に入れ、他の保護用の接点と同様に入力しているも
のである。即ち、図において、７は３相交流電源接続端
子、８は逆相防止器、９は保護装置作動検知用電磁開閉
器で、逆相防止器８の接点８ａ及びその他の保護装置（
図示せず）の接点１０ａ、 ｌｌａの状態により０Ｎ１
０ＦＦする１２はマイクロコンピュータ５に電源を供給
する降圧トランスである。マイクロコンビエータ５は電
磁開閉器９の接点９ａの状態を常に監視し、電磁開閉器
１３を制御し、その接点１３ａを通じて電動圧縮機】４
に３相交流電源（Ｒ，Ｓ、正相）を供給している。The conventional reverse phase preventer operation detection means 4 connects a commercially available dedicated reverse phase preventer, puts its contact into a protective device operation detection circuit, and inputs it in the same way as other protective contacts. It is something. That is, in the figure, 7 is a three-phase AC power supply connection terminal, 8 is a reverse phase preventer, and 9 is an electromagnetic switch for detecting the operation of the protective device.
0N1 depending on the state of contacts 10a and lla (not shown)
A step-down transformer 12 that is turned off is a step-down transformer that supplies power to the microcomputer 5. The micro combinator 5 constantly monitors the state of the contact 9a of the electromagnetic switch 9, controls the electromagnetic switch 13, and operates the electric compressor through the contact 13a]4
3-phase AC power (R, S, positive phase) is supplied to the
第８図は、市販されている上記逆相防止器８の内部電気
回路図で、抵抗（Ｒ）、コンデンサ（Ｃ）、リレーコイ
ル（いをＹ結線してあり、３相交流電源電圧位相角と各
負荷の電流位相角の進み、遅れの組合せでリレー印加電
圧を正相で高（ＯＮ）、逆相で低（ＯＦＦ） となる
ようにしている。FIG. 8 is an internal electrical circuit diagram of the above-mentioned negative phase preventer 8 which is commercially available, and shows a resistor (R), a capacitor (C), a relay coil (Y-connected), and a three-phase AC power supply voltage phase angle. The relay applied voltage is set to be high (ON) in the positive phase and low (OFF) in the negative phase by the combination of lead and delay of the current phase angle of each load.
次に動作について説明する。３相交流電源接続端子７か
ら入力された３相交流電源は、破割？１１１機器６、例
えば電動圧縮機１４や、マイクロコンピュータ５、その
他の負荷に駆動電源を供給している。Next, the operation will be explained. Is the 3-phase AC power input from the 3-phase AC power supply connection terminal 7 broken? 111 equipment 6, such as the electric compressor 14, the microcomputer 5, and other loads.
そして、逆相防止器８は電動圧縮ａ１４が順回転するよ
うに前記３相交流電源が正しく接続されているか（正相
）、逆回転になるよう誤って接続されているか（逆相）
を検知する。もし、逆相であれば、逆相防止器８の接点
８ａはＯＦＦとなり、保護装置作動検知用電磁開閉器９
をＯＦＦする。マイクロコンピュータ５はその接点９ａ
の状態を常時監視し、接点９ａがＯＦＦ した時、つま
り逆相検知時及び保護装置作動時は、電磁開閉器１３を
即ＯＦＦ Ｌ、電動圧縮機１４の電源供給を禁止する。Then, the reverse phase preventer 8 determines whether the three-phase AC power source is connected correctly so that the electric compressor a14 rotates in the forward direction (normal phase), or incorrectly connected so that the electric compressor a14 rotates in the opposite direction (reverse phase).
Detect. If the phase is reversed, the contact 8a of the reverse phase preventer 8 is turned OFF, and the electromagnetic switch 9 for detecting the operation of the protective device
Turn off. The microcomputer 5 has its contact 9a
When the contact 9a is turned OFF, that is, when reverse phase is detected and the protection device is activated, the electromagnetic switch 13 is immediately turned OFF, and power supply to the electric compressor 14 is prohibited.
このようにして、電動圧縮機１４及びその他の被制御機
器６を保護しながら空気調和機の運転を行っている。又
、従来の保護装置作動検知手段として、感熱サイリスク
を用いたものも提案されているが、この場合にも保護装
置作動検知出力信号としては一本であり、第７図と同じ
回路構成となる。In this way, the air conditioner is operated while protecting the electric compressor 14 and other controlled devices 6. In addition, as a conventional protection device activation detection means, a method using a heat-sensitive cyrisk has been proposed, but in this case as well, there is only one protection device activation detection output signal, and the circuit configuration is the same as that shown in Fig. 7. .
［発明が解決しようとする問題点］
従来の空気調和機の制御装置は以上のように構成されて
おり、専用の逆相防止器８を使用し、その接点８ａを他
の保護装置の接点１０ａ、 ｌｌａと同様に保３１ ｇ
置作動検知回路に入れて制御しているため、高価な逆相
防止器８を使用することとなり、そのための電気配線も
複雑になってしまうという問題点があった。又、逆相検
知時と他の保護装置作動時とで同一の検知用ｉａ源開開
閉器を使用しているので、マイクロコンピュータ５の行
う保護処理に限度があり、サービス性、信頼性が低下す
るという問題点があった。[Problems to be Solved by the Invention] The conventional air conditioner control device is configured as described above, and uses a dedicated reverse phase preventer 8, and its contact 8a is connected to the contact 10a of another protection device. , 31 g as well as lla
Since it is controlled by putting it into a position/operation detection circuit, an expensive anti-phase preventer 8 is required, and the electrical wiring for it is also complicated. In addition, since the same detection ia source switch is used when detecting a reverse phase and when other protection devices are activated, there is a limit to the protection processing that the microcomputer 5 can perform, reducing serviceability and reliability. There was a problem with that.
この発明は、このような問題点を解消するためになされ
たもので、専用の逆相防止器を使用することなく入力電
源の正相２逆相を検知でき、安価でサービス性、信頼性
が向上して空気調和機の制御装置を提供することを目的
としている。This invention was made to solve these problems, and can detect the positive and negative phases of the input power supply without using a dedicated anti-phase preventer, and is inexpensive, serviceable, and reliable. The purpose is to provide an improved control device for air conditioners.
３相交流電源により駆動される電動圧縮機とこの電動圧
縮機の保護装置を備えた空気調和機の制御装置において
、前記電動圧縮機の保護装置作動検知手段に、３相交流
電源の線間電圧の位相角を測定して逆相を検知する逆相
検知手段が具備されている。In a control device for an air conditioner including an electric compressor driven by a three-phase AC power source and a protection device for the electric compressor, the electric compressor protection device activation detection means includes a line voltage of the three-phase AC power source. A reverse phase detection means is provided for detecting a reverse phase by measuring the phase angle of the reverse phase.
保護装置作動検知手段は、逆相検知手段を兼用しており
、３相交流電源の線間電圧の位相角の進み、遅れを測定
し、この測定結果かろ逆相制定を行って電動圧縮機の保
護制御を行う。The protection device activation detection means doubles as a reverse phase detection means, and measures the advance and lag of the phase angle of the line voltage of the three-phase AC power supply, and uses the measurement results to determine the reverse phase and detect the electric compressor. Perform protective control.
以下、この発明の一実施例を第１図ない′−第５図につ
いて説明する。第１図は基本構成を示すブロック図であ
り、図においてｌは冷・暖房、風連温度設定等の操作ス
イッチ入力回路、２は温度センサー等のセンサー入力回
路、３は保護装置作動検知回路で、保護装置ＡＩＯや保
護装置８１１等複数の保護装置の入力手段を有しており
、又逆相検知手段を兼用している。５はマイクロコンピ
ュータで、前記各回路及び保護装置等からの入力条件に
より予め定められたプログラムに従ってファン。An embodiment of the present invention will be described below with reference to FIGS. 1-5. FIG. 1 is a block diagram showing the basic configuration. In the figure, l is an input circuit for operation switches such as cooling/heating and ventilation temperature setting, 2 is a sensor input circuit for a temperature sensor, etc., and 3 is a protection device activation detection circuit. It has input means for a plurality of protection devices such as the protection device AIO and the protection device 811, and also serves as a reverse phase detection means. 5 is a microcomputer that operates a fan according to a predetermined program based on input conditions from each of the circuits and protection devices.
四方弁、電動圧縮機等の被制御機器６を制？？＋１する
。Controls controlled equipment 6 such as four-way valves and electric compressors? ? Add +1.
第２図は、上記保護装置作動検知回路３０電気結線図で
、図中７は３ 、ＦＩＪ交流電源接袂端了−で、３」口
交流電源が接続される。１５は３相交流電源のＲ−Ｔ
＋０間に介装さ杜た電流制限用１氏抗で、保護装置ＡＩ
Ｏの接点１０ａ を介してホ１−カプラ１６に接続され
ている。同（夏に１７は３相交流電源０５−正相間に介
装された電流＋６１Ｊ限用抵抗で、保護装置８１１の接
点１１８を介してホトカブラ１８に接続されている。FIG. 2 is an electrical wiring diagram of the protection device activation detection circuit 30, and 7 in the figure is the FIJ AC power supply connection terminal, to which the 3'' AC power supply is connected. 15 is the RT of the 3-phase AC power supply
A protection device AI with a current limiting resistor interposed between +0 and
It is connected to the H1-coupler 16 via the O contact 10a. 17 is a current +61 J limited resistor interposed between the three-phase AC power supply 05 and the positive phase, and is connected to the photocoupler 18 via the contact 118 of the protection device 811.
このホトカブラ１５．１６の０Ｎ１０ＦＦ ｉ３号はマ
イクロコンピュータ５に入力され、上述した入力信号に
基づき、マイクロコンビエータ５は予め定められたプロ
グラムに従い、逆用′１コ１定及びその他の保護装置作
動の有１−を判断する。そして、電磁開閉器１３を制御
し、電動圧縮ａ１４の保護制御を行うようになっている
。This photocoupler 15.16 0N10FF i3 is input to the microcomputer 5, and based on the above-mentioned input signal, the micro combinator 5 operates according to a predetermined program to activate the reverse operation and other protection devices. Determine whether it is present or not. Then, the electromagnetic switch 13 is controlled to perform protection control of the electric compression a14.
次に１．に記溝成の制？１１装置の動作を第１図〜第５
図を参ＩＩｒ！、シながら説明する。３相電源接続端子
７から人力された３相交流電源は、電磁開閉器１３の接
点１３ａを介して電動圧縮機１４に供給されると共に、
電圧降下トランス１２を経てマイクロコンピュータ５に
供給される。又、３相交流電源のＲ−正相間には、電流
制限抵抗１５、保護装置式ｉｏの接点１０ａ、及びホト
カブラ１６が直列に接続されており、同様に３相交流電
源のＳ−正相間に１よ、電流制限抵抗１７、保護装置Ｂ
ｌｌの接点Ｌｌａ 、及びホトカブララ１８が直列に接
続されている。そして、ホトカブラ１６．１８の０Ｎ１
０ＦＦ信号は、マイクロコンピュータ５のＤＯ＋ ｏｔ
ボートにそれぞれ入力され、マイクロコンピュータ５は
その入力信号を基に定められたプログラムに従って逆相
検知あるいは保ｉＷ Ｗ置作動の有無を検査する。３相
交？Ｒ電源の電圧波形は、第３図ｆａｌに示すようにＲ
相、Ｓ相、正相は互いにそれぞれ１２０ ’ずれている
。第３図（ｂｌは例えばＲ−正相間の線間電圧波形を示
す図で、線間電圧が（＋）側の時、つまり時間ｔ、の間
はホトカブラ１６はＯＮする領域となる。゛第３図ｆｃ
ｌはホトカブラ１６の動作を示す図である。又、同様に
第３図ｆｄｌはＳ−正相間の線間電圧波形であり、時間
ｔ２中はホトカブラ１８がＯＮする領域となる。第３図
ｔｅｌはホトカブラ１８の動作を示す図である。ここで
、通常、Ｒ用、Ｓ相、Ｔ柑が正しく接続されている場合
、Ｒ−正相間の線間電圧はＳ−正相間の線間電圧より６
０°進んでいる。つまり第３図ｔｃ＋の１時間進むこと
になる。ホトカブラ１６．１８のＯＮするタイミングは
、ホトカブラ１６がＯ背してｔ時間経過後ホトカブラ１
８がＯＮするようになっている。ところが、３Ｉｌｌ交
流電源のＲｔＩＩ、Ｓ相、正相が誤って接続された場合
は、Ｒ−正相間の線間電圧はＳ−正相間の線間電圧より
６０″遅れる。つまりｔ時間遅れるこトニなる。そこで
、逆相を検知する二二際してはこの現象を利用しており
、ホトカブラ１６．１８のどちらが先にＯＮするかで逆
十目検知を行っている。第４図はこの逆相検知における
マイクロコンピュータ５の・動作を示したものである。Next 1. Is it the system of the government? 11 The operation of the device is shown in Figures 1 to 5.
See the diagram IIr! , while explaining. The 3-phase AC power supplied manually from the 3-phase power connection terminal 7 is supplied to the electric compressor 14 via the contact 13a of the electromagnetic switch 13, and
The voltage is supplied to the microcomputer 5 via a voltage drop transformer 12. In addition, a current limiting resistor 15, a contact 10a of a protective device type IO, and a photocoupler 16 are connected in series between the R and positive phases of the three-phase AC power supply, and similarly between the S and positive phases of the three-phase AC power supply. 1, current limiting resistor 17, protection device B
The contact Lla of ll and the photocoupler 18 are connected in series. And 0N1 of Hotokabura 16.18
The 0FF signal is DO+ot of the microcomputer 5.
The signals are respectively input to the boat, and the microcomputer 5 inspects the existence of reverse phase detection or maintenance operation according to a predetermined program based on the input signals. Three phase intercourse? The voltage waveform of the R power supply is R as shown in Figure 3 fal.
Phase, S phase, and positive phase are each shifted by 120' from each other. FIG. 3 (bl is a diagram showing the line voltage waveform between, for example, the R-positive phase. When the line voltage is on the (+) side, that is, during time t, the photocoupler 16 is in the ON region. Figure 3 fc
1 is a diagram showing the operation of the photocoupler 16. Similarly, FIG. 3 fdl is a line voltage waveform between the S and positive phases, and is a region where the photocoupler 18 is turned on during time t2. FIG. 3 is a diagram showing the operation of the photocoupler 18. Normally, if the R, S and T phases are connected correctly, the line voltage between R and positive phase is 6
It is advancing 0°. In other words, it will advance by 1 hour in Figure 3 tc+. The timing for turning on the photocoupler 16 and 18 is after the photocoupler 16 has turned back to O and t time has elapsed, and then the photocoupler 1
8 is turned ON. However, if the RtII, S phase, and positive phase of the 3Ill AC power supply are connected incorrectly, the line voltage between the R and positive phases will lag the line voltage between the S and positive phases by 60''. Therefore, when detecting the reverse phase, this phenomenon is utilized, and reverse tenth detection is performed by determining which of the photocouplers 16 and 18 turns on first.Figure 4 shows this reverse phase detection. This figure shows the operation of the microcomputer 5 in phase detection.
ステップ１０１ でり。Step 101.
ボートがＯＮかＯＦＦ か、つまりホトカブラ１６がＯ
ＮがＯＦＦかを８周べる。Ｄ０ポートがＯＦＦであれば
、ＯＮするまでループする。Ｄ０ボートがＯＮすると、
ステップ１０２へ進み、Ｄ１ボート、つまりホトカブラ
１８がＯＮかＯＦＦかを調べる。この時点でＤ１ポート
がＯＦＦしていれば、３相交流電源のＲ相、Ｓ相、正相
は正しく接続されていると判１祈しくステップ１ｏ３）
、次処理へ移る。もしり、ボートがＯＮであるならば、
逆相であると判断しくステップ１０４）、電もｄ開閉器
１３をＯＮすることを禁止しくステップ［ｏ５）、電動
圧！ｉ？ｉ機１４の保護を行う。Is the boat ON or OFF, that is, the photocoupler 16 is O?
Test 8 times to see if N is OFF. If the D0 port is OFF, it loops until it is turned ON. When the D0 boat turns on,
Proceeding to step 102, it is checked whether the D1 boat, that is, the photocoupler 18 is ON or OFF. If the D1 port is OFF at this point, the R phase, S phase, and positive phase of the 3-phase AC power supply are connected correctly (step 1 o 3).
, move on to the next process. If the boat is ON,
It is determined that the phase is reversed (step 104), and the electric pressure is also prohibited from turning on the d switch 13 (step [o5)]. i? Protect i-machine 14.
上記３相交流電源の正相、逆相の判断は、電源投入の際
初期処理として１回行えばよく、３相交流電源が正相で
あると判断されたならば、ホトカブラ１６．１８の０Ｎ
１０ＦＦ信号は別の意味を持った人力信号、つまり保護
装置作動検知信号となる。即ち、保護装置ＡＩＯが作動
し、その接点１０ａがＯＦＦするとホトカブラ１ＧはＯ
Ｎすることができなくなり常時ＯＦＦ状態となる。マイ
クロコンピュータ５は、この状態を検知すると、予め定
められたプログラムに従って保護処Ｆｌ（＾）を行う。Judging whether the 3-phase AC power source is in positive phase or negative phase only needs to be done once as an initial process when the power is turned on, and if it is determined that the 3-phase AC power source is in the positive phase, the photocoupler 16.18 0N
The 10FF signal is a human signal with another meaning, that is, a protection device activation detection signal. That is, when the protection device AIO is activated and its contact 10a is turned OFF, the photocoupler 1G is turned OFF.
It is no longer possible to switch to N, and it is always in the OFF state. When the microcomputer 5 detects this state, it performs protection processing Fl(^) according to a predetermined program.
又、保護装置Ｂｉｔが作動し、その接点１１ａがＯＦＦ
するとホトカブラ１８はＯＮすることができなくなり常
時ＯＦＦ状態となる。マイクロコンピュータ５は、この
状態を検知すると予め定めさ・れたプログラムに従って
保護処理（’Ｂ） を行うことになる。第５図のフロ〜
チャ−トは、このような保護装置作動検知におけるマイ
クロコンピュータ５の動作を示したものである。Also, the protection device Bit is activated and its contact 11a is turned OFF.
Then, the photocoupler 18 cannot be turned on and is always in an OFF state. When the microcomputer 5 detects this state, it performs a protection process ('B) according to a predetermined program. Figure 5 flow~
The chart shows the operation of the microcomputer 5 in detecting activation of such a protective device.
ステップ２０１ で、Ｄ０ボートつまりホトカプラ１６
が常時ＯＦＦであるかどうかを調べ、もしそうであれば
保護装置ＡＩＯが作動したと判断し、ステップ２０２へ
進み、保護処理（Ａ）を行う。次にステップ２０３ で
、Ｄ１ポートつまりホトカプラ１８が常時ＯＦＦである
か調べ、もしそうであれば保護装置Ｂｌｌが作動したと
判断し、ステップ２０４へ進み、保護処理（Ｂ）を行う
。In step 201, the D0 boat, that is, the photocoupler 16
It is checked whether the AIO is always OFF, and if so, it is determined that the protection device AIO has been activated, and the process proceeds to step 202 to perform protection processing (A). Next, in step 203, it is checked whether the D1 port, that is, the photocoupler 18, is always OFF, and if so, it is determined that the protection device Bll has been activated, and the process proceeds to step 204, where protection processing (B) is performed.
このように、逆相検知と保護装置作動検知を同一の回路
にて行うことができ、又それぞれの保護装置に対応して
適切な処理を行うことができるので、安価でサービス性
、信頼性の向上したものとなる。In this way, reverse phase detection and protection device activation detection can be performed in the same circuit, and appropriate processing can be performed for each protection device, resulting in low cost, serviceability, and reliability. It will be improved.
以上説明したように、この発明によれば、保護装置作動
検知手段に逆相検知手段を具備させたため、専用の高価
な逆相防止器を使用することなく３相交流電源の逆相を
検知でき、安価で簡易な配線となり、又サービス性、信
頼性が向上するという効果が得られる。As explained above, according to the present invention, since the protection device activation detection means is equipped with the reverse phase detection means, it is possible to detect the reverse phase of the three-phase AC power supply without using a dedicated and expensive reverse phase preventer. This results in inexpensive and simple wiring, and improved serviceability and reliability.
第１図はこの発明の一実施例を示すブロック図、第２図
は第１図の具体的回路を示す電気結線図、第３図は３相
電源の電圧波形及びホトカブラの動作を示す図、第４図
は逆相検知の動作を示すフローチャート、第５図は保護
装置作動検知の動作を示すフローチャート、第６図は従
来例を示すプロ７り図、第７図は第６図の具体的回路を
示す電気結線図、第８図は第７図の逆相防止器の内部結
線図である。
３・・・・・・保護装置作動検知回路
５・・・・・・マイクロコンピュータ
１０・・・・・・保護装置Ａ
１１・・・・・・保護装置Ｂ
１４・・・・・・電動圧Ｉｉｉ機
１６、１８・・・・・・ホトカブラ
なお、図中同一符号は同−又は相当部分を示す。
代 理 人 大 岩 増
雄第７図
２：：３ 図
第 ４ 図
第 ６ 日
第 ８ 図
手続補正書（０究）
昭和 年 ９月 ８１FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an electrical wiring diagram showing the specific circuit shown in FIG. Fig. 4 is a flowchart showing the operation of reverse phase detection, Fig. 5 is a flowchart showing the operation of protection device activation detection, Fig. 6 is a professional diagram showing a conventional example, and Fig. 7 is a concrete example of Fig. 6. FIG. 8 is an electrical wiring diagram showing the circuit; FIG. 8 is an internal wiring diagram of the anti-phase preventer shown in FIG. 7; 3... Protective device activation detection circuit 5... Microcomputer 10... Protective device A 11... Protective device B 14... Electric pressure III machines 16, 18... Photocoupler Note that the same reference numerals in the drawings indicate the same or corresponding parts. Agent Masu Oiwa
Male Figure 7 2::3 Figure 4 Figure 6 Day 8 Figure Procedure Amendment (0 Study) September 81, Showa
Claims (2)
電動圧縮機の保護装置を備えた空気調和機の制御装置に
おいて、前記電動圧縮機の保護装置作動検知手段に、３
相交流電源の線間電圧の移送角を測定して逆相を検知す
る逆相検知手段を具備させたことを特徴とする空気調和
機の制御装置。(1) In a control device for an air conditioner equipped with an electric compressor driven by a three-phase AC power source and a protection device for the electric compressor, the protection device activation detection means for the electric compressor includes three
1. A control device for an air conditioner, comprising a reverse phase detection means for detecting reverse phase by measuring the transfer angle of line voltage of a phase AC power source.
動に応じて保護処理を行うようにしたことを特徴とする
特許請求の範囲第１項記載の空気調和機の制御装置。(2) The control device for an air conditioner according to claim 1, comprising a plurality of protection devices and performing protection processing in accordance with the operation of each protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60245649A JP2618227B2 (en) | 1985-11-01 | 1985-11-01 | Control device for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60245649A JP2618227B2 (en) | 1985-11-01 | 1985-11-01 | Control device for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62107697A true JPS62107697A (en) | 1987-05-19 |
| JP2618227B2 JP2618227B2 (en) | 1997-06-11 |
Family
ID=17136779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60245649A Expired - Lifetime JP2618227B2 (en) | 1985-11-01 | 1985-11-01 | Control device for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2618227B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114445A (en) * | 1987-10-29 | 1989-05-08 | Canon Inc | Device for controlling multi-color print data |
| JPH01222690A (en) * | 1987-10-30 | 1989-09-05 | Hitachi Ltd | Negative-phase operation preventive circuit for rotary type compressor |
| JP2018185118A (en) * | 2017-04-27 | 2018-11-22 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
-
1985
- 1985-11-01 JP JP60245649A patent/JP2618227B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114445A (en) * | 1987-10-29 | 1989-05-08 | Canon Inc | Device for controlling multi-color print data |
| JP2911896B2 (en) * | 1987-10-29 | 1999-06-23 | キヤノン株式会社 | Multi-color print data controller |
| JPH01222690A (en) * | 1987-10-30 | 1989-09-05 | Hitachi Ltd | Negative-phase operation preventive circuit for rotary type compressor |
| JP2018185118A (en) * | 2017-04-27 | 2018-11-22 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2618227B2 (en) | 1997-06-11 |
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| EXPY | Cancellation because of completion of term |