JPS6129637A - Control device - Google Patents
Control deviceInfo
- Publication number
- JPS6129637A JPS6129637A JP15228184A JP15228184A JPS6129637A JP S6129637 A JPS6129637 A JP S6129637A JP 15228184 A JP15228184 A JP 15228184A JP 15228184 A JP15228184 A JP 15228184A JP S6129637 A JPS6129637 A JP S6129637A
- Authority
- JP
- Japan
- Prior art keywords
- current
- outdoor fan
- load current
- load
- time
- 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.)
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- Air Conditioning Control Device (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
この発明は、空気調和機制御装置のような、全負荷電流
値の大小に応じ、負荷の一部を切離し投入して制御する
制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a control device, such as an air conditioner control device, that controls the load by cutting off and turning on a part of the load depending on the magnitude of the full load current value.
［従来技術］
従来この種装置として第１図に示すものがあった。第１
図は従来の空気調和機の制御装置を示す。[Prior Art] A conventional device of this type is shown in FIG. 1st
The figure shows a conventional air conditioner control device.
図において、（１）は、圧縮機モータ（２）、室外ファ
ンモータ（３）、その他室内ファンモータ、各種弁駆動
用ソレノイド等の空気調和機負荷回路（４）に負荷電流
を供給する電源ケーブル、（５）はこの電源ケーブル（
１）から負荷電流に比例した電圧を得る負荷電流測定回
路で、電流変成器（６）、抵抗（７）、ダイオード（８
）、平滑用コンデンサ（９）からなっている。（ｌＯ）
はマイクロコンピュータ等の制御器、（１１）は温度セ
ンサ（１２）、増幅器（１３）からなる温度センサ回路
、（１４）は温度調整用可変抵抗（１５）、温度設定器
（１６）からなる温度調整回路、（１７）は操作用リモ
ートコントローラ（以下リモコンという）、（１ｇ）
（１９） （２０）は表示用発光素子、（２１）は圧縮
機制御用リレー、 （２１ａ）はそれのメイク接点、（
２２） （２３）（２４）は室内ファン速度調整用リレ
ー、（２５）は室外ファン制御用リレー、（２５ａ）は
それのメイク接点、（２６）は、温度センサ回路（１１
）からの温度信号と温度調整回路（１４）からの設定温
度信号とにより差温を演算する、制御器（１０）で実行
される差温演算手段、（２７）は、この差温演算手段（
２６）からの差温データと、リモコン（１７）からの操
作データ及びその他各種センサからの入力データにより
各種演算を行ない、各種リレー（２１）〜（２５）、表
示器（１８）〜（２０）等への制御信号を出力する制御
器（１０）で実行される運転制御手段、（２８）は負荷
電流測定回路（５）からの全負荷電流データから、全負
荷電流値が第１の設定値１１以上に増加した時と、■１
より小さい第２の設定値１２以下に減少した時出力する
、制御器（１０）で実行される電流検出手段、（２９）
は電流検出手段（２８）からの出力に応じて、室外ファ
ン制御用リレー（２５）のオン・オフ制御信号を出力す
る、制御器（１０）で実行される室外ファン制御手段で
、電流検出手段（２８）が全負荷電流の工１以上の増加
を検出した時室外ファンを切離しＩ２以下の減少を検出
した時室外ファンを投入するよう制御される。（３０）
は、電流検出手段（２８）から室外ファン制御手段（２
９）へのＩ２以下検出信号の印加を、■１以上検検出量
の発生から所定の一定時間Ｔ１の開停止させるＴＩ停止
手段である。In the figure, (1) is a power cable that supplies load current to the air conditioner load circuit (4) such as the compressor motor (2), outdoor fan motor (3), other indoor fan motors, and various valve drive solenoids. , (5) is this power cable (
This is a load current measurement circuit that obtains a voltage proportional to the load current from 1), which includes a current transformer (6), a resistor (7), and a diode (8).
) and a smoothing capacitor (9). (lO)
is a controller such as a microcomputer, (11) is a temperature sensor circuit consisting of a temperature sensor (12) and an amplifier (13), and (14) is a temperature sensor circuit consisting of a variable resistance for temperature adjustment (15) and a temperature setting device (16). Adjustment circuit, (17) is a remote controller for operation (hereinafter referred to as remote control), (1g)
(19) (20) is a display light emitting element, (21) is a compressor control relay, (21a) is its make contact, (
22) (23) and (24) are indoor fan speed adjustment relays, (25) are outdoor fan control relays, (25a) are their make contacts, (26) are temperature sensor circuits (11
) and a set temperature signal from the temperature adjustment circuit (14), a temperature difference calculation means (27) executed by the controller (10) is configured to calculate a temperature difference calculation means (27).
Various calculations are performed using the temperature difference data from 26), operation data from the remote control (17), and input data from various other sensors, and various relays (21) to (25) and indicators (18) to (20) The operation control means (28) is executed by a controller (10) that outputs a control signal to the load current measuring circuit (5), and determines the full load current value as the first setting value from the full load current data from the load current measuring circuit (5). When it increases to 11 or more, ■1
Current detection means (29) executed by the controller (10) outputs when the current decreases to a smaller second set value 12 or less.
is an outdoor fan control means executed by the controller (10) that outputs an on/off control signal for the outdoor fan control relay (25) according to the output from the current detection means (28), and the current detection means (28) is controlled to disconnect the outdoor fan when it detects an increase of I2 or more in the full load current, and to turn on the outdoor fan when it detects a decrease of I2 or less. (30)
is from the current detection means (28) to the outdoor fan control means (2
9) is a TI stop means for opening and stopping the application of the I2 or less detection signal to (1) for a predetermined constant time T1 from the occurrence of the 1 or more detection amount.
次に、その動作を第２図によって説明する。制御器（１
０）の運転制御手段（２７）による通常の空気調和機の
運転制御動作については、この発明に直接関係ないので
省略し、全負荷電流変化により制御 ”動作につ
いてのみ説明する。第２図は、負荷電流制御運転パター
ンを示すタイムチャートで、同図（ａ）は全負荷電流波
形、同図（ｂ）は圧縮機モータ（２）制御用リレー（２
１）のオン・オフを、同図（ｃ）は室外ファン−Ｔ−−
り（３）、制御用リレー（２５）のオン・オフを示して
いる。ここで全負荷電流■が第１の設定値１１を越える
とブレーカ容量を越える危険性が ゛あるので、室外フ
ァン制御用リレー（２５）をオフとし室外ファンモータ
（３）を切離し停止させ、それにより全負荷電流Ｉが第
２の設定値１２以下となり、且つ室外ファン制御用リレ
ー（２５）をオフとしてから所定の一定時間Ｔ１経過後
、再び室外ファンを運転させるようリレー（２５）をオ
ンとする。この一定時間Ｔ１の間、室外ファンオン信号
の発生を停止させるのは、室外ファンモータ投入時の電
流増加によって再び１１以上となり、リレー（２５）が
オフとなるといったリレー（２５）の繰返し動作を防止
するためである。このように２つの電流設定値■１、工
２を持たせ、室外ファン制御用リレー（２５）をオン・
オフ制御することで、ブレーカ容量を越えない範囲で運
転を継続させることが可能である。Next, the operation will be explained with reference to FIG. Controller (1
The normal operation control operation of the air conditioner by the operation control means (27) in 0) is omitted because it is not directly related to this invention, and only the operation controlled by the change in the full load current will be explained. This is a time chart showing the load current control operation pattern, in which (a) shows the full load current waveform, and (b) shows the compressor motor (2) control relay (2).
1), the same figure (c) shows the outdoor fan-T--
(3) indicates on/off of the control relay (25). If the full load current exceeds the first set value 11, there is a risk of exceeding the breaker capacity, so the outdoor fan control relay (25) is turned off, the outdoor fan motor (3) is disconnected and stopped, and the When the full load current I becomes equal to or less than the second set value 12, and after a predetermined period of time T1 has elapsed since the outdoor fan control relay (25) was turned off, the relay (25) is turned on to operate the outdoor fan again. do. During this fixed period of time T1, the generation of the outdoor fan on signal is stopped due to the repeated operation of the relay (25), such as when the current increases when the outdoor fan motor is turned on and becomes 11 or more again, causing the relay (25) to turn off. This is to prevent this. In this way, with two current setting values 1 and 2, the outdoor fan control relay (25) is turned on and off.
By performing off control, it is possible to continue operation within a range that does not exceed the breaker capacity.
しかし、以上のように運転した場合、実際は室外ファン
モータ（３）の投入時に突入電流が発生する。そのため
この突入電流によっても全負荷電流が■】を越えないよ
うにするためには、室外ファン停止時間Ｔ１を充分長く
とる必要があり、従って全負荷電流■がＩ２以下の空気
調和機本来の能力以下での運転時間が長くなり、空気調
和機本来の機能が達せられない欠点を有していた。However, when operating as described above, an inrush current actually occurs when the outdoor fan motor (3) is turned on. Therefore, in order to prevent the full load current from exceeding ■ due to this inrush current, it is necessary to take a sufficiently long outdoor fan stop time T1, and therefore the original capacity of the air conditioner when the full load current ■ is less than I2. This has the drawback that the operating time is longer under these conditions, and the air conditioner's original function cannot be achieved.
［発明の概要］
この発明は、以上のような欠点を除去するなめになされ
たもので、投入により突入電流を生ずる負荷の投入、切
離しによって全負荷電流が所定範囲内に入るよう制御す
る制御装置において、上記負荷の投入時所定の一定時間
の間全負荷電流の検出を停止するようにすることによっ
て、第１、第２の設定値の間の全負荷電流制御を、被制
御機器の機能を低下させることなく効率的に行ない得る
制御装置を提供することを目的としている。[Summary of the Invention] The present invention has been made to eliminate the above-mentioned drawbacks, and provides a control device that controls the total load current to fall within a predetermined range by turning on and off a load that generates an inrush current when turned on. By stopping the detection of the full load current for a predetermined period of time when the load is turned on, full load current control between the first and second set values is performed, and the functions of the controlled equipment are controlled. It is an object of the present invention to provide a control device that can perform the operation efficiently without deterioration.
［発明の実施例］ 以下、この発明の実施例を図について説明する。[Embodiments of the invention] Embodiments of the present invention will be described below with reference to the drawings.
第１図はこの発明の一実施例を示す概略構成図で、図に
おいて（１）〜（２９）は第１図の従来例と同様であり
、（３］）は、制御器（１０）の電流検出手段（２８）
からの、全負荷電流■の第２の設定値Ｉ２以下への減少
検出信号が印加され、その印加時間から所定の一定時間
Ｔ２、例えは７秒間、電流検出手段（２５）の検出機能
を停止させる、制御器（１０）において実行されるＴ２
停止手段である。即ち第１図のものと相異する点は、室
外ファン制御手段（２９）へは、電流検出手段（２８）
が、全負荷電流■の第１の設定値１１以上第２の設定値
■２以下検出毎に信号を出力して、室外ファン制御用リ
レー（２５）をオフ・オンさせ、室外ファンモータ（３
）を切離し、投入させるが、室外ファンモータ投入時の
Ｔ２の時間、電流検出手段（２８）の検出機能を停止さ
せる点である。FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention. In the figure, (1) to (29) are the same as the conventional example shown in FIG. Current detection means (28)
A detection signal for detecting a decrease in the full load current (■) to below a second set value I2 is applied, and the detection function of the current detection means (25) is stopped for a predetermined constant time T2, for example 7 seconds, from the application time. T2 executed in the controller (10) to
It is a means of stopping. That is, the difference from the one in FIG. 1 is that the outdoor fan control means (29) is connected to the current detection means (28).
outputs a signal every time it detects the first set value 11 or more of the full load current ■2 or less the second set value ■2, turns the outdoor fan control relay (25) off and on, and turns the outdoor fan motor (3
), but the detection function of the current detection means (28) is stopped for the time T2 when the outdoor fan motor is turned on.
次にその動作を第２図相当の第４図のタイムチャートに
よって説明する。まず、リモコン（１７）からの操作信
号又は温度センサ回路（１１）、温度調整回路（１４）
からの信号等によって、制御器（１０）の運転制御手段
（２７）から圧縮機オン信号が出力されると、制御用リ
レー（２１） 、 （２５）等がオンとなり、圧縮機モ
ータ（２）、室外ファンモータ（３）等が投入される。Next, the operation will be explained with reference to the time chart of FIG. 4, which corresponds to FIG. 2. First, an operation signal from the remote control (17) or a temperature sensor circuit (11), a temperature adjustment circuit (14)
When a compressor on signal is output from the operation control means (27) of the controller (10), the control relays (21), (25), etc. are turned on, and the compressor motor (2) is turned on. , the outdoor fan motor (3), etc. are turned on.
それと共に、全負荷電流工は第４図に示すように、圧縮
機モータ（２）及び室外ファンモータ（３）等の突入電
流により瞬時大幅に上昇する。この圧縮機投入時の突入
電流による全負荷電流上昇の電流検出手段（２８）に対
する影響は、従来から除去されるようなされているが、
この実施例においてはＴ２停止手段（３１）による電流
検出手段（２８）の検出機能停止によっても除去される
。以下空′気調和機の負荷に応じて全負荷電流工は変化
していく。負荷が大きくて全負荷電流が上昇し、第１の
設定値■１を越えると、制御器（１０）の電流検出手段
（２８）がこれを検出し、室外ファン制御手段（２９）
からの信号によって室外ファン制御用リレー（２５）が
オフさせる。At the same time, as shown in FIG. 4, the full load electric current increases instantaneously and significantly due to inrush currents of the compressor motor (2), outdoor fan motor (3), etc. Conventionally, the influence on the current detection means (28) of the rise in full load current due to the rush current when the compressor is turned on has been removed.
In this embodiment, it is also removed by stopping the detection function of the current detection means (28) by the T2 stop means (31). Below, the full load current will change depending on the load of the air conditioner. When the load is large and the full load current increases and exceeds the first set value 1, the current detection means (28) of the controller (10) detects this, and the outdoor fan control means (29)
The outdoor fan control relay (25) is turned off by a signal from the outdoor fan control relay (25).
これによって室外ファンモータ（３）が電源ケーブル（
１）から切離され室外ファンが停止する。これによって
全負荷電流■は減少し、第２の設定値１２以下に下がる
と、制御器（１０）の電流検出手段（２８）がこれを検
出し、室外ファン制御手段（２９）に信号を出力し、リ
レー（２５）をオンとして室外ファンモータ（３）を投
入すると同時に、電流検出手段（２８）の検出機能をＴ
２時間の開停止させる。このため室外ファンモータ（３
）投入によって生ずる突入電流によって全負荷電流■が
工１以上に上昇しても、これを制御器（１０）の電流検
出手段（２８）は検出せず室外ファンモータ（３）を再
切離しすることはない。This allows the outdoor fan motor (3) to connect to the power cable (
1) and the outdoor fan stops. As a result, the full load current decreases, and when it falls below the second set value 12, the current detection means (28) of the controller (10) detects this and outputs a signal to the outdoor fan control means (29). Then, at the same time as turning on the relay (25) and turning on the outdoor fan motor (3), the detection function of the current detection means (28) is turned on.
Open and stop for 2 hours. For this reason, the outdoor fan motor (3
) Even if the full load current (■) rises to 1 or more due to the inrush current generated by turning on the fan, the current detection means (28) of the controller (10) will not detect this and the outdoor fan motor (3) will be disconnected again. There isn't.
Ｔ２時間経過後、再び安定な電流値に戻ってから再び電
流検出動作が行なわれ、第４図に示すように、第１、第
２の設定電流値ＩＩ、Ｉ２の間で安定な運転が行なわれ
る。After time T2 has passed, the current value returns to a stable value and the current detection operation is performed again, and as shown in FIG. 4, stable operation is performed between the first and second set current values II and I2. It will be done.
以上の実施例では電流検出停止時間Ｔ２として７秒を設
定したが、この時間を任意に設定することは勿論可能で
ある。又、投入・切離し用負荷として室外ファンモータ
の例を示したが、投入により突入電流を生ずる負荷であ
ればこれに限らず他のモータ又は弁開閉用のソレノイド
などであってもよい。なお、制御用リレーがオフによっ
て負荷を投入される例であってもよく、この場合はリレ
ーをオフにすると同時に所定時間Ｔ２の開電流検出機能
を停止させる。さらに、被制御機器として必しも空気調
和機に限られるものでもない。In the above embodiment, 7 seconds was set as the current detection stop time T2, but it is of course possible to set this time arbitrarily. Further, although an outdoor fan motor is shown as an example of the load for closing and disconnecting, the present invention is not limited to this, and may be any other motor or a solenoid for opening/closing a valve as long as the load generates an inrush current when turned on. Note that the load may be applied when the control relay is turned off, and in this case, the open current detection function for the predetermined time T2 is stopped at the same time as the relay is turned off. Furthermore, the controlled equipment is not necessarily limited to air conditioners.
［発明の効果コ
この発明は以上のように、投入により突入電流が生ずる
負荷の投入と同時に電流検出を所定時間停止させるよう
構成したので、設定電流値以下の余分な運転時間を設定
する必要なく、被制御機器の機能低下を伴うことなしに
、所定の設定値間の全負荷電流の制御が効率的に行ない
得る効果を有するものである。[Effects of the Invention] As described above, this invention is configured to stop current detection for a predetermined time at the same time as the application of a load that causes an inrush current, so there is no need to set an extra operating time below the set current value. This has the effect that the full load current can be efficiently controlled between predetermined set values without deteriorating the functionality of the controlled equipment.
第１図は従来の空気調和機制御装置の概略構成図、第２
図はそれの全負荷電流制御動作を示すタイムチャート、
第３図はこの発明の一実施例を示す概略構成図、第４図
はそれの全負荷電流制御動作を示すタイムチャートであ
る。
図において、（１）は電源ケーブル、（４）は圧縮機モ
ータ（２）及び投入により突入電流の生ずる室外ファン
モータ（３）’、？’を含む負荷回路、（５）は全負荷
電流測定回路、（１０）はマイコン等の制御器、（２１
）は圧縮機制御用リレー、（２５）は室外ファン制御用
リレー、（２８）は、全負荷電流が第１の設定値１１以
上に増加した時と、第２の設定値１２以下に減少した時
出力を生ずる、制御器（１０）で実行される電流検出手
段、（２９）は、この電流検出手段（２８）からの信号
に応じ室外ファン制御用リレー（２５）をオン・オフす
る、制御器（１０）で実行される室外ファン制御手段、
（３１）は、電流検出手段（２８）からの第２の設定値
工２以下検出信号に応じ電流検出手段（２８）の電流検
出機能・を所定のＴ２時間停止させる、制御器（１０）
で実行されるＴ２停止手段である。
図中同一符号は同−或は相当部分を示す。
代理人 大 岩 増 雄 （はが２名）第 １ 図
ｎFigure 1 is a schematic configuration diagram of a conventional air conditioner control device;
The figure is a time chart showing the full load current control operation,
FIG. 3 is a schematic configuration diagram showing one embodiment of the present invention, and FIG. 4 is a time chart showing its full load current control operation. In the figure, (1) is the power cable, (4) is the compressor motor (2), and the outdoor fan motor (3)', which generates an inrush current when turned on. ', (5) is a full load current measuring circuit, (10) is a controller such as a microcomputer, (21
) is the relay for compressor control, (25) is the relay for outdoor fan control, and (28) is when the full load current increases to the first set value 11 or more and when it decreases to the second set value 12 or less. A current detection means (29) executed by the controller (10) that produces an output is a controller that turns on and off the outdoor fan control relay (25) in response to a signal from the current detection means (28). (10) outdoor fan control means executed by;
(31) is a controller (10) that stops the current detection function of the current detection means (28) for a predetermined T2 time in response to the second set value 2 or less detection signal from the current detection means (28).
This is the T2 stopping means executed in The same reference numerals in the drawings indicate the same or corresponding parts. Agent Masuo Oiwa (2 people) Figure 1 n
Claims (2)
荷回路の全負荷電流を検出し、その検出値が第１の設定
値以上に増加した時、上記負荷回路中の投入により突入
電流の生ずる所定の負荷を切離し、第１の設定値より小
さい第２の設定値以下に減少した時、上記切離した負荷
を投入するよう制御する制御装置において、上記所定の
負荷の投入時所定の一定時間上記全負荷電流の検出を停
止するようにしたことを特徴とする制御装置。(1) When the total load current of multiple load circuits including the load that generates an inrush current when turned on is detected, and the detected value increases beyond the first set value, an inrush current is generated when the load circuit is turned on. In a control device that disconnects a predetermined load and controls the disconnected load to be applied when the load decreases to a second set value that is smaller than the first set value, the predetermined period of time is applied when the predetermined load is applied. A control device characterized in that detection of full load current is stopped.
により突入電流が生ずる所定の負荷は室外ファンモータ
、そして上記制御装置は空気調和機制御装置である特許
請求の範囲第１項記載の制御装置。(2) The load circuit is an air conditioner drive circuit, the predetermined load that generates an inrush current when turned on is an outdoor fan motor, and the control device is an air conditioner control device. Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15228184A JPS6129637A (en) | 1984-07-23 | 1984-07-23 | Control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15228184A JPS6129637A (en) | 1984-07-23 | 1984-07-23 | Control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6129637A true JPS6129637A (en) | 1986-02-10 |
Family
ID=15537083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15228184A Pending JPS6129637A (en) | 1984-07-23 | 1984-07-23 | Control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01226001A (en) * | 1988-03-07 | 1989-09-08 | Sanyo Electric Co Ltd | Wireless signal reception control system |
| CN109883023A (en) * | 2019-03-08 | 2019-06-14 | 广东美的制冷设备有限公司 | Air conditioner, the control method of load, device and computer readable storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5297246A (en) * | 1976-02-12 | 1977-08-15 | Mitsubishi Electric Corp | Air conditioner |
| JPS5674544A (en) * | 1979-11-24 | 1981-06-20 | Matsushita Seiko Co Ltd | Controller of airconditioner |
-
1984
- 1984-07-23 JP JP15228184A patent/JPS6129637A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5297246A (en) * | 1976-02-12 | 1977-08-15 | Mitsubishi Electric Corp | Air conditioner |
| JPS5674544A (en) * | 1979-11-24 | 1981-06-20 | Matsushita Seiko Co Ltd | Controller of airconditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01226001A (en) * | 1988-03-07 | 1989-09-08 | Sanyo Electric Co Ltd | Wireless signal reception control system |
| CN109883023A (en) * | 2019-03-08 | 2019-06-14 | 广东美的制冷设备有限公司 | Air conditioner, the control method of load, device and computer readable storage medium |
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