JPS60221647A - Controlling device of air conditioner - Google Patents
Controlling device of air conditionerInfo
- Publication number
- JPS60221647A JPS60221647A JP59076773A JP7677384A JPS60221647A JP S60221647 A JPS60221647 A JP S60221647A JP 59076773 A JP59076773 A JP 59076773A JP 7677384 A JP7677384 A JP 7677384A JP S60221647 A JPS60221647 A JP S60221647A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- indoor
- room temperature
- frequency
- compressor
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- 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、除湿機能を有する空気調和機の制御装置に関
する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a control device for an air conditioner having a dehumidifying function.
従来例の構成とその問題点
従来の除湿機能を有する空気調和機の制御装置は、室内
機に設けられた冷却用コイルにより、室内空気を冷却除
湿し、再び、ヒータで加熱し除湿空気を室内空間に送り
出す制御を連続的に行なうものであったため、ヒータ、
にょる加熱でかなりの電力を消費し、ヒータの容量不足
の場合は、室内温度が低下してし捷うという欠点を有し
ていた。Conventional configuration and its problems Conventional control devices for air conditioners with a dehumidifying function cool and dehumidify indoor air using a cooling coil installed in the indoor unit, then heat it again with a heater and return the dehumidified air to the indoor air. Since it was a device that continuously controlled the flow into the space, heaters,
A considerable amount of power is consumed by heating the room, and if the heater capacity is insufficient, the indoor temperature will drop and the system will fail.
発明の目的
そとで、本発明は、除湿運転時の室内温度の低下を抑え
、少ない電力で除湿を行なうことを目的とする。Another object of the invention is to suppress a drop in indoor temperature during dehumidification operation and perform dehumidification with less electric power.
発明の構成
この目的を達成するため本発明は、周波数変換装置を用
いて圧縮機の周波数制御を行なうことにより冷媒の蒸発
温度を一定に保つ制御を室温が設定温度より高い時は連
続的に行ない、室温が設定温度より低い時は、上記制御
運転と停止のインターバル運転を行ない、又、室内ファ
ンを低速運転することにより、室内温度の低下を抑え、
少ない電力で除湿運転を行なう様にしたものである。Structure of the Invention To achieve this object, the present invention continuously controls the evaporation temperature of the refrigerant by controlling the frequency of the compressor using a frequency converter when the room temperature is higher than the set temperature. When the room temperature is lower than the set temperature, the above control operation and stop interval operation is performed, and the indoor fan is operated at low speed to suppress the decrease in indoor temperature.
It is designed to perform dehumidifying operation with less electric power.
実施例の説明 以下に本発明の一実施例を添付図に従い説明する。Description of examples An embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図は本発明の一実施例における空気調和機の冷凍シ
ステム図を示す。１は、室内側ユニットで、２は室外側
ユニットである。３は圧縮機、４は室外コイル、５は減
圧器、６は室内コイルで、これらを環状に連結して冷凍
サイクルを構成している。７は室内ファンで、被空調空
間の空気を循環させ、上記室内コイルで熱交換させ除湿
する。FIG. 1 shows a refrigeration system diagram of an air conditioner according to an embodiment of the present invention. 1 is an indoor unit, and 2 is an outdoor unit. 3 is a compressor, 4 is an outdoor coil, 5 is a pressure reducer, and 6 is an indoor coil, which are connected in a ring to form a refrigeration cycle. Reference numeral 7 denotes an indoor fan that circulates the air in the air-conditioned space and dehumidifies it by exchanging heat with the indoor coil.
８は室外ファンで外気と上記室外コイルと熱交換させる
。8 is an outdoor fan that exchanges heat with the outside air and the above outdoor coil.
次にブロック回路を第２図を参考に説明する。Next, the block circuit will be explained with reference to FIG.
９は電源で、１０は交流電圧を直流に変換する整流回路
である。１１は直流を交流に変換する周波数変換装置で
、出力周波数を２５田から７６田まで連続的にかえるこ
とができ、これにより圧縮機モーター２を１５００〜４
５００ ｒ 、ｐｏｍ の範囲で可変にできる。一方、
１３は、周波数変換装置１１に周波数信号を出力する制
御装置である。１４は操作部で、運転／停止切換ＳＷ１
．ｓ、送風・冷房・暖房・除湿等の運転モード切換５Ｗ
１６、室温目標値を設定する室温設定器１７と、強風・
弱風・微風等の室内ファン風量を設定する切換５Ｗ１８
で構成されており、それぞれの指令を制御装置１３に出
力する。１９は室内温度を検出する第１温度センサで、
２０は冷媒の蒸発温度を検出する第２温度センサである
。２１は室内外ファン等の負荷である。そして、前記制
御装置１３は、操作部１４の操作信号、第１．第２温度
センサー ９ 、２０の温度データ等をマイクロコンピ
ュータの入力として導き、予め設定された手順に従って
、運転か停止かを決定し、室内外ファン等の負荷１６を
作動させ、周波数変換装置１１に周波数指令を与える。9 is a power supply, and 10 is a rectifier circuit that converts alternating current voltage into direct current. 11 is a frequency converter that converts direct current to alternating current, and can continuously change the output frequency from 25 to 76. This allows the compressor motor 2 to
It can be varied within the range of 500 r and pom. on the other hand,
13 is a control device that outputs a frequency signal to the frequency conversion device 11. 14 is an operation unit, run/stop switch SW1
．． s, operation mode switching for ventilation, cooling, heating, dehumidification, etc. 5W
16. A room temperature setting device 17 for setting the room temperature target value, and a strong wind/
Switch 5W18 to set the indoor fan air volume for weak wind, breeze, etc.
It outputs each command to the control device 13. 19 is a first temperature sensor that detects the indoor temperature;
20 is a second temperature sensor that detects the evaporation temperature of the refrigerant. 21 is a load such as an indoor/outdoor fan. The control device 13 receives the operation signal from the operation section 14 and the first . The temperature data etc. from the second temperature sensors 9 and 20 are input to the microcomputer, which determines whether to operate or stop according to a preset procedure, operates the load 16 such as an indoor/outdoor fan, and transmits the data to the frequency converter 11. Give frequency command.
上記構成において、実際の除湿運転動作例にっいて第一
回を参考に説明する。In the above configuration, an example of an actual dehumidifying operation will be explained with reference to the first time.
操作部１４で除湿モードにセットし、運転を開始すれば
、室内ファンは自動的に低速の微風にセットされ、周波
数変換装置には最小周波数の２５１Ｌ指令が与えられ、
圧縮機は２５田で運転する。When the operation unit 14 is set to dehumidification mode and operation is started, the indoor fan is automatically set to a low speed breeze, and the minimum frequency 251L command is given to the frequency converter.
The compressor operates on 25 fields.
又、室内コイルの温度を検出する第２の温度センサは、
室内コイルが凍結する。℃を検知する様に設定されてお
り、０℃以上では、周波数を時間要素とともに１０Ｉｂ
ずつアップし、０℃以下では時間要素とともに１０１−
Ｉｚずつダウンさせる。一方、室温が設定温度より高い
時は、上記運転を継続的に行ない、反対に室温が設定温
度より低い時は、６ｏ分間は上記運転を行ない、２０分
間は運転を停止するインターバル運転を行なう。Moreover, the second temperature sensor that detects the temperature of the indoor coil is
Indoor coil freezes. It is set to detect °C, and above 0 °C, the frequency is set to 10Ib along with the time element.
101-
Lower it by Iz. On the other hand, when the room temperature is higher than the set temperature, the above operation is performed continuously, and on the other hand, when the room temperature is lower than the set temperature, the above operation is performed for 60 minutes and the operation is stopped for 20 minutes, which is an interval operation.
そして、運転開始時は、室内ファン微風で、２５田で運
転する。（点Ａ）この時室内コイル温度は０℃以上であ
り、０℃以上の状態が１０分間経過した時点（点Ｂ）で
室内コイル温度が下がる様に運転周波数を１０１ドアツ
ブの３５１−ｈにしている。Then, at the start of operation, the indoor fan is operated at 25°C with a slight breeze. (Point A) At this time, the indoor coil temperature is 0°C or higher, and when the state of 0°C or higher has passed for 10 minutes (point B), the operating frequency is changed to 351-h of the 101 door knob so that the indoor coil temperature decreases. There is.
３５トし運転を行なったところ、室内コイル温度が０℃
以上の状態、又は、０℃以下の状態が１０分間継続しな
いため、しばら（３５１−１ｚ運転が継続する。ところ
が、点Ｃで室内コイル温度が０℃以下の状態が１０分間
継続したため、今度は、室内コイル温度が下がる様に、
運転周波数は１０１トダウンの２５田になる。更に室内
コイル温度が０℃以下の状態が１０分間継続し、運転６
ＯＦＦ”となる。After 35 hours of operation, the indoor coil temperature was 0℃.
Since the above condition or the condition below 0℃ does not continue for 10 minutes, (351-1z operation continues for a while.However, since the indoor coil temperature at point C remained below 0℃ for 10 minutes, , so that the indoor coil temperature decreases.
The operating frequency will be 25 degrees, which is 101 degrees down. Furthermore, the indoor coil temperature remained below 0℃ for 10 minutes, and operation 6
OFF”.
（点Ｄ）運転”ＯＦＦ”で、室内コイル温度が０℃上記
制御は、室温が設定温度よりも高い場合の制御であるが
、点Ｇで室温が設定温度よりも低くなった時、６０分タ
イマーをスタートし、上記制御を継続する。(Point D) When the operation is "OFF" and the indoor coil temperature is 0℃, the above control is for when the room temperature is higher than the set temperature, but when the room temperature becomes lower than the set temperature at point G, 60 minutes Start the timer and continue the above control.
そして、６０分タイマーがカウントアツプされる上記６
０分タイマー、又は、２０分タイマーがカウント中に、
室温が設定温度より高くなると、タイマーはりセントさ
れ、室温が設定温度より低い場合の制御を行なう。Then, the 60-minute timer counts up in step 6 above.
While the 0 minute timer or 20 minute timer is counting,
When the room temperature becomes higher than the set temperature, the timer is activated, and control is performed when the room temperature is lower than the set temperature.
従って、本実施例では室温が設定温度より高い場合は、
室内ファンを低速の微風で運転し、室内コイル温度が０
℃になる様に、圧縮機の周波数制御を行ない、又、室温
が設定温度より低い場合は、上記制御動作を６ｏ分間行
ない、２Ｑ分間運転を停止するインターバル運転を行な
うものであるから、室温の低下を抑え、少ない電力で、
除湿運転を行なうことができる。Therefore, in this example, if the room temperature is higher than the set temperature,
Operate the indoor fan at low speed with a gentle breeze until the indoor coil temperature is 0.
℃, and if the room temperature is lower than the set temperature, the above control operation is performed for 60 minutes and the operation is stopped for 2Q minutes, so the compressor frequency is controlled so that the room temperature is Reduces power drop and uses less power.
Dehumidification operation can be performed.
又、室内コイル温度が０℃以上か以下かの状態が１０分
間継続した時のみ周波数の変更を行なっているので、室
内コイル温度が０℃近辺にある時、ひんばんに周波数が
変化するのを防ぐことができる。Also, since the frequency is changed only when the indoor coil temperature remains above or below 0°C for 10 minutes, the frequency changes frequently when the indoor coil temperature is around 0°C. It can be prevented.
発明の効果
以上の説明から明らかな様に、本発明の空気調和機の制
御装置は、室温目標値を設定する室温設定器と、室内温
雇を検出する第１温度センサと、冷媒の蒸発温度を検出
する第２温度センサと、周波数を変えることにより圧縮
機の回転数を変える周波数変換装置と、この周波数変換
装置に周波数信号を与える制御装置を有し、この制御装
置は、室温が設定温度より高い時は、室内ファンを低速
で運転し、４媒の蒸発温度が一定値に保持される様に、
圧縮機を周波数制御することによシ室内空気を除湿し、
室温が設定温度より低い時は上記運転と、運転停止のイ
ンターバル運転を行なうものであるから、室内温度の低
下を抑え、少ない電力で除湿を行なうことができるとい
う効果がある。Effects of the Invention As is clear from the above explanation, the air conditioner control device of the present invention includes a room temperature setting device that sets a target room temperature value, a first temperature sensor that detects the room temperature, and a temperature sensor that detects the evaporation temperature of the refrigerant. a second temperature sensor that detects a temperature of When the temperature is higher, the indoor fan is operated at low speed to maintain the evaporation temperature of the four medium at a constant value.
Dehumidifies indoor air by controlling the frequency of the compressor.
When the room temperature is lower than the set temperature, the above operation and the interval operation of stopping the operation are performed, which has the effect of suppressing a drop in the room temperature and dehumidifying with less electric power.
タイムチャート図である。It is a time chart figure.
３・・・・・圧縮機、４−・・・室外コイル、５・・・
・減圧器、６・・・・・室内コイル、７・ ・室内ファ
ン、８・・・・・・室外ファン、１７・・・・・室温設
定器、１９第１温度センサ、２０・・・・第２温度セン
サ、１１ ・・・周波数変換装置、１３ ・制御装置。3...Compressor, 4-...Outdoor coil, 5...
- Pressure reducer, 6... Indoor coil, 7 - Indoor fan, 8... Outdoor fan, 17... Room temperature setting device, 19 First temperature sensor, 20... Second temperature sensor, 11... Frequency converter, 13 - Control device.
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2
Claims (1)
を循環させる風速切換可能な室内ファンと、室外機に設
けられた室外ファンと、室温目標値を設定する室温設定
器と、室内温度を検出する第１温度センサと、冷媒の蒸
発温度を検出する第２温度センサと、周波数を変えるこ
とにより前記圧縮機の回転数を変える周波数変換装置と
、前記周波数変換装置に周波数信号を与える制御装置を
有し、前記制御装置は、室温が、設定温度より高い時は
、前記室内ファンを低速で運転し、冷媒の蒸発温度が一
定値に保持される様に、前記圧縮機を周波数制御して、
室内空気を除湿し、室温が設定温度より低い時は、前記
除湿運転と停止のインターバル運転を行なうよう構成し
た空気調和機の制御装置。[Claims] A compressor and an outdoor coil that constitute a refrigeration cycle. A pressure reducer, an indoor coil, an indoor fan that is installed in the indoor unit and whose speed can be changed to circulate indoor air, an outdoor fan that is installed in the outdoor unit, a room temperature setting device that sets the target room temperature, and a room temperature setting device that sets the indoor temperature. a first temperature sensor that detects the evaporation temperature of the refrigerant, a second temperature sensor that detects the evaporation temperature of the refrigerant, a frequency conversion device that changes the rotation speed of the compressor by changing the frequency, and a control device that provides a frequency signal to the frequency conversion device. The control device operates the indoor fan at a low speed when the room temperature is higher than the set temperature, and controls the frequency of the compressor so that the evaporation temperature of the refrigerant is maintained at a constant value. ,
A control device for an air conditioner configured to dehumidify indoor air and perform interval operation between dehumidification operation and stop when the room temperature is lower than a set temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59076773A JPS60221647A (en) | 1984-04-17 | 1984-04-17 | Controlling device of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59076773A JPS60221647A (en) | 1984-04-17 | 1984-04-17 | Controlling device of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60221647A true JPS60221647A (en) | 1985-11-06 |
Family
ID=13614905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59076773A Pending JPS60221647A (en) | 1984-04-17 | 1984-04-17 | Controlling device of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60221647A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744223A (en) * | 1985-11-29 | 1988-05-17 | Kabushiki Kaisha Toshiba | Air conditioning apparatus |
| CN105953488A (en) * | 2016-03-25 | 2016-09-21 | 合肥天鹅制冷科技有限公司 | Control device for high speed motor refrigerating machine of air compression refrigeration system |
| CN107062562A (en) * | 2017-05-27 | 2017-08-18 | 广东美的制冷设备有限公司 | Air-conditioning system, air purification method and computer-readable recording medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5977245A (en) * | 1982-10-25 | 1984-05-02 | General Eakon Kk | Air conditioner |
-
1984
- 1984-04-17 JP JP59076773A patent/JPS60221647A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5977245A (en) * | 1982-10-25 | 1984-05-02 | General Eakon Kk | Air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744223A (en) * | 1985-11-29 | 1988-05-17 | Kabushiki Kaisha Toshiba | Air conditioning apparatus |
| CN105953488A (en) * | 2016-03-25 | 2016-09-21 | 合肥天鹅制冷科技有限公司 | Control device for high speed motor refrigerating machine of air compression refrigeration system |
| CN107062562A (en) * | 2017-05-27 | 2017-08-18 | 广东美的制冷设备有限公司 | Air-conditioning system, air purification method and computer-readable recording medium |
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