JPH0428949A - Operation control device - Google Patents
Operation control deviceInfo
- Publication number
- JPH0428949A JPH0428949A JP2133754A JP13375490A JPH0428949A JP H0428949 A JPH0428949 A JP H0428949A JP 2133754 A JP2133754 A JP 2133754A JP 13375490 A JP13375490 A JP 13375490A JP H0428949 A JPH0428949 A JP H0428949A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- frequency
- set temperature
- temperature
- value
- 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
- 238000000034 method Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000002123 temporal effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000035605 chemotaxis Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、可変速圧縮機を用いた空気調和機の静音運転
制御装置に係り、特に、圧縮機運転周波数の制御や送風
機変速の制御に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a quiet operation control device for an air conditioner using a variable speed compressor, and particularly relates to control of compressor operating frequency and blower speed change control. .
従来の技術は、特開昭６０−１３３２５４号公報に記載
のように、室内ファン風量および可変速圧縮機を制御し
、吹出温度を一定化して、温度分布を向上させるものが
あった。As described in Japanese Patent Application Laid-Open No. 60-133254, there is a conventional technique in which the air volume of an indoor fan and a variable speed compressor are controlled, the blowing temperature is made constant, and the temperature distribution is improved.
特開昭６０−２４５９４６号公報に記載のように、通風
温度により送風機の回転数を制御して、低騒音化を図る
ものがあった。これに関連するものとして特開昭６０−
１３３２５３号公報が挙げられる。As described in Japanese Unexamined Patent Application Publication No. 60-245946, there is a system in which the rotational speed of a blower is controlled depending on the ventilation temperature to reduce noise. Related to this, Japanese Patent Application Laid-open No. 1986-
133253 is mentioned.
上記の他に、設定温度を軽負荷方向へ数℃、シフトさせ
ることができ、利用者任意操作可能なパおやすみスイッ
チ”または“マイルドスイッチ′″などと呼ばれるもの
が、ルームエアコンなどに広く用いられている。In addition to the above, there are also devices called ``pa-sleep switches'' or ``mild switches'' that can shift the set temperature by several degrees Celsius toward lighter loads and that can be operated by the user at will, and are widely used in room air conditioners. ing.
特開昭６０−１３３２５４号公報では、送風機や圧縮機
を可変速として制御する方法は本発明と同様であるが、
吹出口温度−走化を目的としており、静音化については
大きく考慮されてなかった。In Japanese Patent Application Laid-Open No. 60-133254, the method of controlling the blower and compressor as variable speeds is the same as that of the present invention, but
The aim was to increase outlet temperature and chemotaxis, and no great consideration was given to noise reduction.
特開昭６０−２４５９４６号公報は、静音化を送風機回
転数制御のみで行っており、圧縮機の騒音は通常のまま
であるため、十分な静音がなされていないという問題が
あった。In Japanese Patent Application Laid-Open No. 60-245946, noise reduction is achieved only by controlling the rotation speed of the blower, and the noise of the compressor remains as normal, so there is a problem that sufficient noise reduction is not achieved.
前述の“マイルドスイッチ″などと呼ばれているものは
、設定温度をシフトさせるものであり、定常時の騒音低
下には多少の効果があるが、起動初期など非定常時では
静音化に効果を示さないという問題があった。The so-called "mild switches" mentioned above shift the set temperature and are somewhat effective in reducing noise during normal conditions, but they are less effective in reducing noise during unsteady conditions such as in the early stages of startup. The problem was that it was not shown.
本発明の目的は、■利用者が能力優先か、静音優先かを
必要に応じて任意に選択できるようにすることにあり、
■静音優先時には、運転開始から定常に到るまで、送風
機、圧縮機共に低騒音を維持することを目的としている
。■更に、静音運転時でも設定温度到達以前に、室温が
平衡状態とならないように必ず設定温度へ到達させるこ
とを目的としている。The purpose of the present invention is to enable the user to arbitrarily select whether to prioritize performance or quietness as necessary;
■When noise is prioritized, the aim is to maintain low noise from both the blower and the compressor from the start of operation until it reaches steady state. Furthermore, even during silent operation, the purpose is to always reach the set temperature so that the room temperature does not reach an equilibrium state before the set temperature is reached.
上記目的を達成するため、操作部に圧縮機運転周波数を
ある一定値以下に制限する制御に切り替えることができ
る、利用者任意操作のスイッチ（静音スイッチ）と制御
装置を設けた。In order to achieve the above object, the operating section is equipped with a switch (quiet switch) that can be operated arbitrarily by the user (silent switch) and a control device that can control the compressor operating frequency to be limited to a certain value or less.
十分な静音運転を得るため、圧縮機周波数を制限するの
みならず、室内、室外送風機も可変速とし、圧縮機周波
数などに連動して、送風機回転数を変化させる運転制御
装置を設けた。In order to achieve sufficiently quiet operation, we not only limited the compressor frequency, but also made the indoor and outdoor blowers variable speed, and installed an operation control device that changes the blower rotation speed in conjunction with the compressor frequency.
圧縮機周波数制限時に、室温が設定温度に到達する以前
に平衡状態に近づくと、自動的に周波数制限値を引き上
げる運転制御装置を設けた。When the compressor frequency is limited, an operation control device is provided that automatically raises the frequency limit value if the room temperature approaches an equilibrium state before reaching the set temperature.
上記以上の静音運転が必要となった時のために。For when quieter operation than above is required.
設定温度シフトスイッチと上記１の圧縮機周波数制限ス
イッチを連動させて、設定温度シフト量や、圧縮機周波
数制限値を変化させる制御装置を設けた。A control device was provided that changes the set temperature shift amount and the compressor frequency limit value by interlocking the set temperature shift switch and the compressor frequency limit switch described in 1 above.
利用者が静音運転を必要とするときに、圧縮機運転周波
数制限スイッチを押すと、マイコンや回路により予め定
められた一定値以上に圧縮機運転周波数は上昇せず、静
音運転が可能となる。If the user presses the compressor operating frequency limit switch when quiet operation is required, the compressor operating frequency will not rise above a certain value predetermined by the microcomputer or circuit, allowing quiet operation.
上記のスイッチ操作に連動して、あるいは圧縮機運転周
波数に連動して、送風機の回転数を、マイコンや回路に
より予め定められた低い値に変化させて、送風機も静音
運転が可能となる。In conjunction with the above-mentioned switch operation or in conjunction with the compressor operating frequency, the rotation speed of the blower is changed to a low value predetermined by a microcomputer or circuit, so that the blower can also operate quietly.
圧縮機の運転周波数制限時に、室温が設定温度到達以前
で平衡状態、つまり、ある一定時間内での温度上昇、ま
たは、温度降下が微少、一定値以下となる場合、温度セ
ンサとマイコンでこれを感知し、周波数制限値を引き上
げるように指令を出す。これを繰り返すことにより、室
温を必ず設定温度へ到達させる。When the compressor operating frequency is limited, if the room temperature is in an equilibrium state before reaching the set temperature, that is, if the temperature rises or falls within a certain period of time is slight or below a certain value, the temperature sensor and microcontroller detect this. Detects and issues a command to increase the frequency limit value. By repeating this, the room temperature always reaches the set temperature.
設定温度シフトスイッチと圧縮機運転周波数制限スイッ
チの両方をＯＮした場合、回路やマイコンにより、設定
温度のシフト量を増大して負荷を下げ圧縮機周波数を下
げる。あるいは圧縮機周波数制限値を下げて、より一層
の静音運転を可能と′している。When both the set temperature shift switch and the compressor operating frequency limit switch are turned on, the circuit or microcomputer increases the shift amount of the set temperature, lowers the load, and lowers the compressor frequency. Alternatively, the compressor frequency limit value can be lowered to enable even quieter operation.
以下、本発明の実施例を第１図ないし第５図を用いて説
明する。Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.
第１図は本発明の制御装置系統図である。通常運転では
室温センサ１．設定温度入力器３、そして各種保護装置
２からの情報を、マイコン（ＣＰＵＩ）４で処理し、圧
縮機への要求周波数（Ｈｚｒ）を算出して、これがその
まま実周波数（Ｈｚ）となり、インバータ回路６で圧縮
機７を駆動させる。FIG. 1 is a system diagram of a control device according to the present invention. During normal operation, room temperature sensor 1. The information from the set temperature input device 3 and the various protection devices 2 is processed by the microcomputer (CPUI) 4, and the required frequency (Hzr) for the compressor is calculated, which becomes the actual frequency (Hz) and is sent to the inverter circuit. 6 to drive the compressor 7.
このときの時経的周波数変化と室温変化（暖房時）を示
したのが第２図であり、室温Ｔは設定温度Ｔｓｅｔへ早
く到達するが、周波数（Ｈｚ）は図のように起動初期に
おいて高周波数となり、騒音は大きくなる。Figure 2 shows the frequency change over time and the room temperature change (during heating) at this time.The room temperature T reaches the set temperature Tset quickly, but the frequency (Hz) changes at the initial startup stage as shown in the figure. The frequency becomes higher and the noise becomes louder.
しかし、早朝や深夜、タイマ使用時など、設定温度への
到達時間の短かさよりも、騒音の低さを優先させたい場
合がある。そこで、操作部に利用者が任意でＯＮ−〇Ｆ
Ｆできる圧縮機周波数制限スイッチ９ （静音スイッチ
）を設ける。この動作を第１図で説明する。However, in some cases, such as early in the morning, late at night, or when using a timer, it may be desirable to prioritize low noise over the short time it takes to reach the set temperature. Therefore, the user can optionally turn ON-〇F on the operation panel.
A compressor frequency limit switch 9 (quiet switch) that can be used to reduce noise is provided. This operation will be explained with reference to FIG.
まず、マイコン（ＣＰＵＩ）４により要求周波数（Ｈｚ
ｒ）が算呂されるが、周波数制限スイッチ９をＯＮする
ことにより、マイコン（ＣＰＵ）５が定められた周波数
制限値（ＨｚＱ）と、要求周波数（Ｈｚｒ）とを比較し
て、低い方の値に実周波数（Ｈｚ）とし、インバータ回
路６により圧縮機７を駆動させる。First, the required frequency (Hz) is set by the microcomputer (CPUI) 4.
r), but by turning on the frequency limit switch 9, the microcomputer (CPU) 5 compares the specified frequency limit value (HzQ) with the required frequency (Hzr) and selects the lower one. The value is set to the actual frequency (Hz), and the compressor 7 is driven by the inverter circuit 6.
このときの時経的周波数変化と室温変化（暖房時）を示
したのが第３図であり、第２図に比べて室温（Ｔ）は遅
い立ち上がりであるが、周波数（Ｈｚ）は周波数制限値
（ＨｚＱ）以上には上がらず静音運転が可能となる。Figure 3 shows the temporal frequency change and room temperature change (during heating) at this time.The rise of the room temperature (T) is slower than in Figure 2, but the frequency (Hz) is due to the frequency limit. The noise does not rise above the value (HzQ) and quiet operation is possible.
次に、送風機制御を、再度、第１図で説明する。Next, blower control will be explained again with reference to FIG.
周波数制限によって低下した実周波数（）（ｚ）を送風
機制御回路１０が読み込み、低い圧縮機運転周波数では
低い送風機回転数となるよう送風機１１のタップを切り
替える、あるいは、送風機用インバータ回路を制御して
、低騒音の送風機運転を行う。The blower control circuit 10 reads the actual frequency ()(z) that has been reduced due to the frequency limit, and switches the tap of the blower 11 so that the blower rotation speed is low at a low compressor operating frequency, or controls the blower inverter circuit. , operate the blower with low noise.
あるいは、簡略的に図中の破線のように、圧縮機運転周
波数制限スイッチ９をＯＮすることにより、直接、送風
機制御回路１０で送風機回転数を低下させてもよい。Alternatively, the blower rotation speed may be directly reduced by the blower control circuit 10 by turning on the compressor operating frequency limiting switch 9, as shown by the broken line in the figure.
圧縮機運転周波数制限を行った場合、能力が低下するた
め、必ず、設定温度（Ｔｓｅｔ）へ室温（Ｔ）が到達す
るとは限らない。When the compressor operating frequency is limited, the room temperature (T) does not necessarily reach the set temperature (Tset) because the capacity decreases.
設定温度（Ｔｓｅｉ）と初期室温の差が大きい場合には
、第４図（暖房時）の実線のように、設定温度（Ｔｓｅ
ｉ）到達以前で室温が平衡状態となり、設定温度に達し
ないことがある。その場合の為に、第１図のマイコン（
ＣＰＵ２）５には、第５図のフローチャート図に示す制
御機能を持たせる。If the difference between the set temperature (Tsei) and the initial room temperature is large, the set temperature (Tsei) will change as shown by the solid line in Figure 4 (during heating).
i) The room temperature may reach an equilibrium state before reaching the set temperature. In that case, the microcontroller shown in Figure 1 (
The CPU 2) 5 is provided with a control function shown in the flowchart of FIG.
例えば、第４図で、ある一定時間（Δｔ）内に室温温度
上昇（八Ｔ）が、ある微少な一定値（ΔＴｎ）以下（Δ
ＴくΔＴｎ）ならば、周波数制限値（Ｈｚｎ）に予め決
められた周波数上昇値（Ｈｚｎ）を加えて、図中の破線
のように周波数制限値を引き上げ（Ｈｚ Ｑ＋Ｈｚｎ）
、この処理を室温（Ｔ）が設定温度（Ｔｓｅｔ）になる
まで繰り返す。For example, in Figure 4, the room temperature rise (8T) within a certain fixed time (∆t) is below a certain minute constant value (∆Tn) (∆
ΔTn), add a predetermined frequency increase value (Hzn) to the frequency limit value (Hzn) and raise the frequency limit value (Hz Q + Hzn) as shown by the broken line in the figure.
This process is repeated until the room temperature (T) reaches the set temperature (Tset).
つまり、熱負荷に負けない最低の周波数で長い到達時間
をかけて設定温度に到らせしめる制御装置であり、設定
温度到達以前に室温が平衡状態とならない静音運転を可
能としている。In other words, it is a control device that takes a long time to reach the set temperature at the lowest frequency that can withstand the heat load, and enables silent operation in which the room temperature does not reach an equilibrium state before reaching the set temperature.
また、現在、設定温度を軽負荷方向（冷房時には高く、
暖房時には低く）にシフトさせる“マイルドスイッチ″
などと呼ばれているものが、ルームエアコンに広く用い
られている。これは第１図に示す設定温度シフトスイッ
チ８のように、直接、設定温度に働きかける利用者任意
操作のスイッチだが、これと本発明の圧縮機運転周波数
制限スイッチ９が連動させる。In addition, the set temperature is currently set toward light load (higher when cooling,
“Mild switch” that shifts to low temperature during heating
Air conditioners are widely used in room air conditioners. This is a user-operated switch that directly affects the set temperature, like the set temperature shift switch 8 shown in FIG. 1, but it is linked with the compressor operating frequency limit switch 9 of the present invention.
両方がＯＮとなった場合、ａ）設定温度のシフト量を、
設定温度シフトスイッチのみＯＮした場合よりも大きく
する。ｂ）圧縮機運転周波数制限値を、圧縮機運転周波
数制限スイッチのみＯＮした場合よりも低い値とする。When both are turned on, a) change the amount of shift in the set temperature,
Make it larger than when only the set temperature shift switch is turned on. b) Set the compressor operating frequency limit value to a lower value than when only the compressor operating frequency limit switch is turned on.
などの処理をマイコン４および５で行い、より一層の静
音運転化と、利用者により静音化の選択の幅を広げるこ
とを可能としている。These processes are performed by the microcomputers 4 and 5, making it possible to achieve even quieter operation and to expand the range of noise reduction options available to the user.
本発明によれば、圧縮機運転周波数制限スイッチを持つ
制御装置を構成したことにより、利用者が必要な時に静
音運転を得ることができる。According to the present invention, by configuring the control device with a compressor operation frequency limit switch, the user can obtain quiet operation when necessary.
可変速の送風機と、これを前記周波数制限スイッチと連
動させて回転数を低下させる制御装置を構成したことよ
り、送風機も騒音低減し、より一層の静音運転を行うこ
とができる。By configuring a variable speed blower and a control device that lowers the rotation speed by interlocking the variable speed blower with the frequency limit switch, the blower also reduces noise and can perform even quieter operation.
静音運転時でも、自動的に圧縮機運転周波数制限値を変
化させる制御装置を構成したことにより、設定温度到達
以前に室温平衡となる事を防いだ静音運転が可能となっ
た。By configuring a control device that automatically changes the compressor operating frequency limit value even during quiet operation, it is possible to achieve quiet operation that prevents the room temperature from reaching equilibrium before the set temperature is reached.
周波数制限スイッチと設定温度シフトスイッチを連動さ
せて処理を行う制御装置を構成したことにより、より一
層の静音運転と、利用者の静音運転選択の幅を広くする
ことが可能となった。By configuring a control device that performs processing in conjunction with the frequency limit switch and set temperature shift switch, it has become possible to achieve even quieter operation and to widen the range of choices for quiet operation by the user.
第１図は、本発明の静音運転制御装置のブロック図、第
２図は、通常運転時の室温と圧縮機周波数の時経的変化
特性図、第３図は、静音運転制御装置作動時の室温と圧
縮機周波数の時経的変化特性図、第４図も、静音運転時
の例であるが、設定温度到達以前に室温が平衡に近くな
った場合に、補正制御装置が作動した例の特性図、第５
図は、第４図における周波数補正制御装置のフローチャ
ートである。
１・・室温センサ、２・・・各種装置、３・・・設定温
度入奉
目
箒
日
奉
図Fig. 1 is a block diagram of the silent operation control device of the present invention, Fig. 2 is a temporal change characteristic diagram of room temperature and compressor frequency during normal operation, and Fig. 3 is a diagram of the quiet operation control device when it is activated. Figure 4, which shows the temporal change characteristics of room temperature and compressor frequency, is also an example of quiet operation, but it also shows an example where the correction control device is activated when the room temperature approaches equilibrium before reaching the set temperature. Characteristic diagram, 5th
The figure is a flowchart of the frequency correction control device in FIG. 4. 1...Room temperature sensor, 2...Various devices, 3...Broomstick with set temperature
Claims (1)
任意操作により、前記可変速圧縮機の運転周波数制御に
ある一定の周波数、上限をつける回路やマイコンを持つ
操作スイッチを設けたことを特徴とする運転制御装置。1. In an air conditioner with a variable speed compressor, an operation switch with a microcomputer or a circuit that sets a certain frequency or upper limit for the operating frequency control of the variable speed compressor is provided according to the user's arbitrary operation. Characteristic operation control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2133754A JPH0428949A (en) | 1990-05-25 | 1990-05-25 | Operation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2133754A JPH0428949A (en) | 1990-05-25 | 1990-05-25 | Operation control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0428949A true JPH0428949A (en) | 1992-01-31 |
Family
ID=15112162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2133754A Pending JPH0428949A (en) | 1990-05-25 | 1990-05-25 | Operation control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428949A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727401A (en) * | 1993-07-09 | 1995-01-27 | Sanyo Electric Co Ltd | Air-conditioning device |
| JP2009145008A (en) * | 2007-12-17 | 2009-07-02 | Daikin Ind Ltd | Air conditioner |
| JP2011237093A (en) * | 2010-05-10 | 2011-11-24 | Fujitsu General Ltd | Air conditioner |
| CN103225864A (en) * | 2013-04-24 | 2013-07-31 | 广东美的制冷设备有限公司 | Control method allowing inverter air conditioner to intelligently switch to silent mode |
-
1990
- 1990-05-25 JP JP2133754A patent/JPH0428949A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727401A (en) * | 1993-07-09 | 1995-01-27 | Sanyo Electric Co Ltd | Air-conditioning device |
| JP2009145008A (en) * | 2007-12-17 | 2009-07-02 | Daikin Ind Ltd | Air conditioner |
| JP2011237093A (en) * | 2010-05-10 | 2011-11-24 | Fujitsu General Ltd | Air conditioner |
| CN103225864A (en) * | 2013-04-24 | 2013-07-31 | 广东美的制冷设备有限公司 | Control method allowing inverter air conditioner to intelligently switch to silent mode |
| CN103225864B (en) * | 2013-04-24 | 2015-04-15 | 广东美的制冷设备有限公司 | Control method allowing inverter air conditioner to intelligently switch to silent mode |
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