JPH074425Y2 - Air conditioner control device - Google Patents
Air conditioner control deviceInfo
- Publication number
- JPH074425Y2 JPH074425Y2 JP1988117392U JP11739288U JPH074425Y2 JP H074425 Y2 JPH074425 Y2 JP H074425Y2 JP 1988117392 U JP1988117392 U JP 1988117392U JP 11739288 U JP11739288 U JP 11739288U JP H074425 Y2 JPH074425 Y2 JP H074425Y2
- Authority
- JP
- Japan
- Prior art keywords
- indoor fan
- temperature
- fan speed
- indoor
- detected 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、インバータ式の空気調和機の吹き出し温度を
制御するのに適用される空気調和機の制御装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a control device for an air conditioner that is applied to control the blowout temperature of an inverter type air conditioner.
吹き出し温度を制御する従来の暖房運転例について第５
図により説明する。Fifth example of conventional heating operation for controlling blowout temperature
It will be described with reference to the drawings.
室内側熱交換器の吸込み空気の温度検出器で検出される
検出温度Thと設定温度Spとの偏差に応じて、PID演算装
置２でPID演算して演算値C1を得る。この演算値C1と初
期値設定装置３の初期値C0とを加算した値を交換ゲイン
装置４へ送り、インバータ周波数に交換してこのインバ
ータ周波数Kcをインバータ駆動装置６へ入力し、図示し
ないコンプレッサを回すようになされている。According to the deviation between the detected temperature Th detected by the temperature detector of the intake air of the indoor heat exchanger and the set temperature Sp, the PID calculator 2 performs PID calculation to obtain a calculated value C 1 . A value obtained by adding the calculated value C 1 and the initial value C 0 of the initial value setting device 3 is sent to the exchange gain device 4, exchanged with the inverter frequency, and the inverter frequency Kc is input to the inverter drive device 6 and is not shown. It is designed to turn the compressor.
また図示しない室内ファンは、室内ファン速度設定装置
５′で例えば弱風に設定（固定）し、室内ファン駆動装
置７へ入力して室内ファンを回すようになされている。An indoor fan (not shown) is set (fixed) to, for example, a weak wind by the indoor fan speed setting device 5 ', and is input to the indoor fan drive device 7 to rotate the indoor fan.
なお図中の囲い部１は室内コントローラを示す。The enclosure 1 in the figure indicates an indoor controller.
第６図（ａ），（ｂ）は、上記従来装置の吹き出し温度
が所定になるよう暖房運転制御する運転例を説明するた
めの図である。図は吸込空気温度と設定値との偏差で空
気調和機の能力を制御する通常の暖房運転をしている場
合に、高温風吹出しのための吹き出し温度制御に切換え
たときの室内ファン速度、検出温度、室内吹出し温度、
吐出圧力、およびインバータ周波数の時間に対する変化
を示す。FIGS. 6 (a) and 6 (b) are diagrams for explaining an operation example in which heating operation control is performed so that the blowout temperature of the above-described conventional device becomes a predetermined value. The figure shows the indoor fan speed and detection when switching to blow-out temperature control for blowing hot air during normal heating operation in which the capacity of the air conditioner is controlled by the deviation between the intake air temperature and the set value. Temperature, room temperature,
The changes in the discharge pressure and the inverter frequency with time are shown.
第６図（ａ）は、室内ファンが強風運転しているとき
に、切換点t1で切換えた結果を示す。切換点t1で、室内
ファンは高温風吹出しのため弱風に切換え設定される
が、設定温度Spに対する検出温度Thの偏差に応じてイン
バータ周波数は上昇する。このとき、室内側風量の低下
に伴なう吐出圧力の上昇速度が検出温度Thの温度上昇速
度に比べて速いため、吐出圧力がコンプレッサ上限圧力
を超える（第６図（ａ）のＡ部分）ことになり、コンプ
レッサの耐圧等の使用制限上、使用できないという問題
点があった。FIG. 6A shows the result of switching at the switching point t 1 when the indoor fan is operating in strong wind. At the switching point t 1 , the indoor fan is set to be switched to a weak wind because of the high temperature air blowing, but the inverter frequency rises according to the deviation of the detected temperature Th from the set temperature Sp. At this time, since the rising speed of the discharge pressure due to the decrease of the indoor air volume is faster than the rising speed of the detected temperature Th, the discharge pressure exceeds the compressor upper limit pressure (portion A in FIG. 6A). As a result, there is a problem that the compressor cannot be used due to usage restrictions such as the pressure resistance of the compressor.
また第６図（ｂ）は、室内が低温で室内ファンが弱風運
転しているときに、切換点t2で切換えた結果を示す。切
換点t2で室内ファンは弱風のまま、設定温度Spに対する
検出温度Thの偏差に応じてインバータ周波数は上昇す
る。しかし、インバータ周波数が最大となっても設定温
度Spまで検出温度Thが到達しないし、かつ弱風ではある
が風量が多いため、室内側熱交換器を通った風は低い吹
き出し温度のまま吹き出され、快適性が損なわれるとい
う問題点があった。The Figure 6 (b), when the indoor indoor fan at a low temperature is operating weak wind, shows the result of switching in the switching point t 2. Remains in the switching point t 2 of the indoor fan is weak wind, the inverter frequency in response to the deviation of the detected temperature Th with respect to the set temperature Sp rises. However, even if the inverter frequency becomes maximum, the detected temperature Th does not reach the set temperature Sp, and since the air volume is weak but there is a large amount of air, the air that has passed through the indoor heat exchanger is blown out at a low blowing temperature. However, there was a problem that comfort was lost.
本考案は上記課題を解決するため次の手段を講ずる。 The present invention takes the following measures to solve the above problems.
すなわち、空気調和機の制御装置として、所定部位の検
出温度と設定温度との偏差をPID演算し、その演算値に
初期値設定装置からの初期値を加算した値を変換ゲイン
装置でインバータ周波数に変換してインバータを駆動す
る制御系と、室内ファン速度を設定する室内ファン速度
自動設定装置と、同室内ファン速度自動設定装置の出力
を受けて室内ファンを駆動する室内ファン駆動装置とを
備えてなるインバータ式の空気調和機の制御装置におい
て、前記室内ファン速度自動設定装置を、切換スイッチ
が切り換えられたとき、前記所定部位の検出温度を入力
し、その検出温度と室内ファン速度との関係から切換ス
イッチが切り換えられた後の室内ファン速度を設定する
ようにした。That is, as the control device of the air conditioner, the deviation between the detected temperature and the set temperature of the predetermined part is calculated by PID, and the value obtained by adding the initial value from the initial value setting device to the calculated value is used as the inverter frequency by the conversion gain device. A control system for converting and driving the inverter, an indoor fan speed automatic setting device for setting the indoor fan speed, and an indoor fan driving device for driving the indoor fan by receiving the output of the indoor fan speed automatic setting device are provided. In the inverter type air conditioner control device, the indoor fan speed automatic setting device is configured such that, when the changeover switch is switched, the detected temperature of the predetermined portion is input, and from the relationship between the detected temperature and the indoor fan speed. The indoor fan speed after the changeover switch is changed is set.
上記手段を講じているため、通常運転から吹き出し温度
制御に切換えるとき、切換え直前の室内ファン速度とそ
のときの検出温度Thとの関係から、最適な室内ファン速
度が予め設定された値に室内ファン速度自動設定装置で
選択設定され、ファン駆動装置に入力されて、室内ファ
ンがその速度で回る。このようにして室内外の負荷に応
じた室内ファン速度の制御ができる。Due to the above measures, when switching from the normal operation to the blowout temperature control, the optimum indoor fan speed is set to a preset value from the relationship between the indoor fan speed immediately before the switching and the detected temperature Th at that time. It is selectively set by the automatic speed setting device and input to the fan driving device, and the indoor fan rotates at that speed. In this way, the indoor fan speed can be controlled according to the indoor and outdoor loads.
従って、強風から弱風等に切り換えたとき、風量が少な
すぎてコンプレッサの吐出圧力がコンプレッサ上限圧力
を超えたり、逆に風量が多すぎて吹き出し温度が所定の
温度まで上らなかったりすることがなくなり、常に快適
な吹き出し温度がえられるようになる。Therefore, when switching from strong wind to weak wind, the discharge pressure of the compressor may exceed the compressor upper limit pressure due to too small air volume, or conversely, the discharge temperature may not reach the specified temperature due to too much air volume. It will disappear and you can always get a comfortable blowing temperature.
本考案の一実施例を第１図ないし第４図により説明す
る。なお従来例で説明した部分は、説明を省略し、本考
案に関する部分を主体に説明する。An embodiment of the present invention will be described with reference to FIGS. The description of the part described in the conventional example will be omitted, and the part related to the present invention will be mainly described.
第１図において、室内ファン速度設定装置５は検出温度
Thを入力し、その検出温度Thとそのときの室内ファン速
度に応じて第２図に示すように微風から強風の４段階に
室内ファンの速度を切り換える信号を室内ファン駆動装
置に送り室内ファンの速度を切り換える。In FIG. 1, the indoor fan speed setting device 5 indicates the detected temperature.
Input Th, and send a signal to the indoor fan drive to switch the speed of the indoor fan from four levels of breeze to strong wind according to the detected temperature Th and the indoor fan speed at that time. Switch speed.
PID演算装置２は偏差演算器18の出力を受ける。偏差演
算器18は設定温度Spと室内側熱交換器の所定部位の検出
温度Thとを入力してその偏差を出力する。また初期値設
定装置２は立上がり運転時にPID演算装置２のPID演算値
Ｃに加算する初期値C0を出力する。さらに変換ゲイン装
置４はPID演算値Ｃと初期値C0を加算した演算値の値に
応じたインバータ周波数を出力する。The PID calculator 2 receives the output of the deviation calculator 18. The deviation calculator 18 inputs the set temperature Sp and the detected temperature Th of a predetermined portion of the indoor heat exchanger, and outputs the deviation. Further, the initial value setting device 2 outputs an initial value C 0 to be added to the PID calculation value C of the PID calculation device 2 at the time of rising operation. Further, the conversion gain device 4 outputs the inverter frequency according to the value of the calculated value obtained by adding the PID calculated value C and the initial value C 0 .
次に、上記実施例における暖房運転の吹き出し温度を制
御する手順を、第３図のフローチャートに従い説明す
る。Next, the procedure for controlling the blowing temperature of the heating operation in the above embodiment will be described with reference to the flowchart of FIG.
暖房運転がスタートすると、図示しないマイコン装置で
制御される設定器11でMODE＝０と初期設定する。切換器
12でMODEの変更をし、変更しない場合は出口Ｙへ進む。
比較器15でMODE＝０ならば、通常暖房運転設定器16へ進
み、切換器12へ戻るループを構成する。When the heating operation is started, MODE = 0 is initialized by the setter 11 controlled by a microcomputer device (not shown). Switch
Change MODE at 12 and proceed to Exit Y if not changed.
If MODE = 0 in the comparator 15, the loop proceeds to the normal heating operation setting device 16 and returns to the switching device 12.
切換器12でMODE＝０→１に変更した場合は、設定器14で
MODE＝１と設定してから、比較器15で比較して出口１へ
進む。温度検出器17で検出された検出温度Thは、偏差の
演算器18で設定温度Spとの偏差が算出され、PID演算装
置２へ入力される。If the mode is changed from 0 to 1 on the switch 12, use the setter 14
After setting MODE = 1, the comparator 15 compares and proceeds to the exit 1. The deviation of the detected temperature Th detected by the temperature detector 17 from the set temperature Sp is calculated by the deviation calculator 18, and the deviation is input to the PID calculator 2.
また、検出温度Thは、室内ファン速度自動設定装置５へ
入力されて、第２図の室内ファン選択テーブル図から室
内ファン速度が選択され、室内ファン駆動装置７へ入力
される。Further, the detected temperature Th is input to the indoor fan speed automatic setting device 5, the indoor fan speed is selected from the indoor fan selection table shown in FIG. 2, and is input to the indoor fan drive device 7.
PID演算装置２へ入力された偏差は、一般的なPID演算を
行い演算値Ｃを出力する。初期値設定装置３では初期値
C0を設定して演算値Ｃと加算し、変換ゲイン装置４でイ
ンバータ周波数に変換し、次にインバータ駆動装置６へ
出力してインバータを制御する。その後、前記切換器12
の前流に合流させる。The deviation input to the PID calculator 2 is subjected to a general PID calculation and a calculated value C is output. Initial value in the initial value setting device 3
C 0 is set, added with the calculated value C, converted into an inverter frequency by the conversion gain device 4, and then output to the inverter drive device 6 to control the inverter. Then, the switching device 12
Join the front stream of.
さらに切換器12でMODE＝１→０に変更する場合は、設定
器13でMODE＝０と設定し、比較器15で比較して、出口へ
進む。Furthermore, when changing from MODE = 1 to 0 with the switch 12, the setting device 13 sets MODE = 0, the comparator 15 compares the values, and the process proceeds to the exit.
以上の動作を繰返してインバータを制御する。The above operation is repeated to control the inverter.
本実施例の制御による運転例を、第４図に従い説明す
る。An example of operation under the control of this embodiment will be described with reference to FIG.
まず、第４図（ａ）において、切換前は吸込空気温度と
設定値との偏差で空気調和機の能力を制御する通常暖房
運転をしており、室内ファン速度は強風が選択されてい
るものとする。ここで、切換点t1で高温風吹出しのため
吹き出し温度制御に切換えると、検出温度Thは約52.5℃
であるので、第２図の室内ファン速度選択テーブル図か
ら室内ファン速度は中風となり、室内側熱交換器を通る
風量すなわち室内風量もあまり低下しない。その結果、
吐出圧力の上昇を押さえることができる。First, in FIG. 4 (a), before switching, the normal heating operation is performed in which the capacity of the air conditioner is controlled by the deviation between the intake air temperature and the set value, and strong wind is selected as the indoor fan speed. And At this point, when switching to blowout temperature control for hot air blowing at the switching point t 1 , the detected temperature Th is about 52.5 ° C.
Therefore, from the indoor fan speed selection table shown in FIG. 2, the indoor fan speed is medium air, and the air volume passing through the indoor heat exchanger, that is, the indoor air volume does not decrease so much. as a result,
The rise in discharge pressure can be suppressed.
次に、第４図（ｂ）において、通常暖房運転時、室内フ
ァン速度は弱風で運転している。ここで、切換点t2で吹
き出し温度制御に切換えると、検出温度Thが約50℃であ
るので、第２図から室内ファン速度は微風となり室内側
熱交換器を通る風量すなわち室内風量を低下させる。そ
の結果、検出温度Thは設定温度Spまで到達し、所定の吹
き出し温度を得ることができる。Next, in FIG. 4 (b), during normal heating operation, the indoor fan speed is operating with a weak wind. Here, when the temperature is switched to the outlet temperature control at the switching point t 2 , the detected temperature Th is about 50 ° C., so that the indoor fan speed becomes a slight wind from FIG. 2, and the air volume passing through the indoor heat exchanger, that is, the indoor air volume is reduced. . As a result, the detected temperature Th reaches the set temperature Sp, and a predetermined blowing temperature can be obtained.
このようにして吐出圧力が上限を超えたり、吹き出し温
度が所定値まで上らなったりするようなことがなくな
る。In this way, the discharge pressure does not exceed the upper limit and the blowout temperature does not rise to a predetermined value.
以上説明したように、本考案によれば、室内ファン速度
が検出温度によって所定の選択パターンで切換えられる
ので室内ファン速度の急変化に伴う吐出圧力の異常上昇
や、室内風量過多のため吹き出し温度が所定温度まで到
達しないという従来の欠点が容易に解消される。As described above, according to the present invention, since the indoor fan speed is switched in a predetermined selection pattern according to the detected temperature, the discharge temperature is abnormally increased due to a sudden change in the indoor fan speed, and the blowout temperature is increased due to an excessive amount of indoor air flow. The conventional drawback of not reaching the predetermined temperature is easily eliminated.
第１図は本考案の一実施例のブロック図、第２図は同実
施例の室内ファン速度の選択テーブル図、第３図は同実
施例の作用を説明するためのフローチャート図、第４図
は同実施例における室内吹出し温度等の変化を例示する
図、第５図は従来の制御装置の一例のブロック図、第６
図は同従来例における室内吹出し温度等の変化を例示す
る説明図である。 ２…PID演算装置、３…初期値設定装置、４…変換ゲイ
ン装置、５…室内ファン速度自動設定装置、６…インバ
ータ駆動装置、７…室内ファン駆動装置、18…偏差演算
器。FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a table for selecting an indoor fan speed of the embodiment, FIG. 3 is a flow chart for explaining the operation of the embodiment, and FIG. FIG. 5 is a diagram illustrating changes in the indoor blowout temperature and the like in the same embodiment, FIG. 5 is a block diagram of an example of a conventional control device, and FIG.
The figure is an explanatory view illustrating changes in the indoor blowout temperature and the like in the conventional example. 2 ... PID calculator, 3 ... Initial value setting device, 4 ... Conversion gain device, 5 ... Indoor fan speed automatic setting device, 6 ... Inverter drive device, 7 ... Indoor fan drive device, 18 ... Deviation calculator.
Claims (1)
PID演算し、その演算値に初期値設定装置からの初期値
を加算した値を変換ゲイン装置でインバータ周波数に変
換してインバータを駆動する制御系と、室内ファン速度
を設定する室内ファン速度自動設定装置と、同室内ファ
ン速度自動設定装置の出力を受けて室内ファンを駆動す
る室内ファン駆動装置とを備えてなるインバータ式の空
気調和機の制御装置において、前記室内ファン速度自動
設定装置を、切換スイッチが切り換えられたとき、前記
所定部位の検出温度を入力し、その検出温度と室内ファ
ン速度との関係から切換スイッチが切り換えられた後の
室内ファン速度を設定するようにしたことを特徴とする
空気調和装置の制御装置。1. A deviation between a detected temperature of a predetermined part and a set temperature is calculated.
PID operation is performed, and the calculated value is added to the initial value from the initial value setting device. The conversion gain device converts the value to the inverter frequency to drive the inverter, and the indoor fan speed is automatically set to set the indoor fan speed. In an inverter type air conditioner control device comprising an apparatus and an indoor fan driving device that drives an indoor fan by receiving the output of the indoor fan speed automatic setting device, the indoor fan speed automatic setting device is switched. When the switch is switched, the detected temperature of the predetermined portion is input, and the indoor fan speed after the changeover switch is switched is set based on the relationship between the detected temperature and the indoor fan speed. Air conditioner control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988117392U JPH074425Y2 (en) | 1988-09-08 | 1988-09-08 | Air conditioner control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988117392U JPH074425Y2 (en) | 1988-09-08 | 1988-09-08 | Air conditioner control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241037U JPH0241037U (en) | 1990-03-20 |
| JPH074425Y2 true JPH074425Y2 (en) | 1995-02-01 |
Family
ID=31360815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988117392U Expired - Lifetime JPH074425Y2 (en) | 1988-09-08 | 1988-09-08 | Air conditioner control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074425Y2 (en) |
-
1988
- 1988-09-08 JP JP1988117392U patent/JPH074425Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241037U (en) | 1990-03-20 |
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