JPS58107092A - Driving device for air conditioner - Google Patents
Driving device for air conditionerInfo
- Publication number
- JPS58107092A JPS58107092A JP56203542A JP20354281A JPS58107092A JP S58107092 A JPS58107092 A JP S58107092A JP 56203542 A JP56203542 A JP 56203542A JP 20354281 A JP20354281 A JP 20354281A JP S58107092 A JPS58107092 A JP S58107092A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- inverter
- fan
- drive circuit
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Multiple Motors (AREA)
- Inverter Devices (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は空！ｌ！Ｉ！機用駆動装置に係り、特に、圧縮
機用電動機及び熱交換器冷却に供するファン用電動機を
それぞれインバータにより駆動する形式の空調機に好適
な空調機用駆動装置に関する。[Detailed Description of the Invention] The present invention is empty! l! I! The present invention relates to an air conditioner drive device, and particularly relates to an air conditioner drive device suitable for an air conditioner in which a compressor motor and a fan motor for cooling a heat exchanger are each driven by an inverter.
空調機として、ルームエアコンを例にとると、圧縮機用
電動機や熱交換缶を冷却するために備えたファン用電動
機は従来誘導電動機を用いて、温度制御は誘導電動機の
オン・オフ制御もしくは電圧制御であった。最近、省エ
ネルギーの観点からルームエアコンの成績係数を高める
のに、上記の誘導電動機をイランシスターなどの半導体
を用いたインバータにより駆動し、紬記の誘導電動機を
室内温度に応じて可変速運転するものがある。史には電
動機自体の高効率化を図るのに、誘導電動機に代り、損
失の少ない永久磁石を用いた同期電動機をインバータで
駆動するルームエアコンがある。Taking a room air conditioner as an example, conventional induction motors are used for the compressor motor and the fan motor for cooling the heat exchange can, and temperature control is controlled by on/off control of the induction motor or by voltage. It was control. Recently, in order to increase the coefficient of performance of room air conditioners from the perspective of energy conservation, the above induction motor is driven by an inverter using semiconductors such as Iran Sister, and the Tsumugi induction motor is operated at variable speed according to the indoor temperature. There is. Historically, in order to improve the efficiency of the motor itself, there have been room air conditioners that use an inverter to drive a synchronous motor that uses permanent magnets with less loss, instead of an induction motor.
第１図は圧縮機用電動機をインバータで駆動するための
駆′動回路の一例を示したものである。同図において、
１は交流電源、２は電動機４を駆動する駆動回路、３は
圧縮機（図示せず）及びその駆動用の電動機４から成る
圧縮機部である。前記駆動回路２はダイオード１１〜１
４で構成された整流回路、平滑コンデンサ６、トランジ
スター１５〜２０とダイオード２１〜２６から構成され
たインバータ７及びその制御回路９から成る。また、１
０け前記制御回路９に直流電圧を加えるための補助直流
電源であり、８はインバータ７へのｒｆｊＬａ電力を供
給する直流電源であり、前記整流回路８と平滑コンデン
サ６から成る。そして、電動機４は制御回路９からの制
御信号９１によって制御されるインバータフにより加変
速運転される。FIG. 1 shows an example of a drive circuit for driving a compressor motor with an inverter. In the same figure,
Reference numeral 1 denotes an AC power supply, 2 a drive circuit for driving an electric motor 4, and 3 a compressor section including a compressor (not shown) and an electric motor 4 for driving the compressor. The drive circuit 2 includes diodes 11 to 1.
4, a smoothing capacitor 6, an inverter 7 including transistors 15-20 and diodes 21-26, and its control circuit 9. Also, 1
0 is an auxiliary DC power supply for applying DC voltage to the control circuit 9, and 8 is a DC power supply for supplying rfjLa power to the inverter 7, which is composed of the rectifier circuit 8 and the smoothing capacitor 6. The electric motor 4 is operated at an accelerated speed by an inverter controlled by a control signal 91 from a control circuit 9.
第１図では圧縮機用電動機をインバータで駆動する場合
の回路構成図につき示したが、ファン用電動機をインバ
ータで駆動する際にも第１図と同様の回路構成を必要と
する。すなわら、例えはルームエアコンの省エネルギー
化のために圧縮機用電動機及びファン用電動機を可変速
運転するには、一つのルームエアコンに少なくとも２台
のインバータを含む駆動回路が必要となり、ルームエア
コンとして装置の大形化を招く。Although FIG. 1 shows a circuit configuration diagram for driving a compressor motor with an inverter, the same circuit configuration as in FIG. 1 is required when a fan motor is driven with an inverter. For example, in order to operate the compressor motor and fan motor at variable speeds in order to save energy in a room air conditioner, one room air conditioner requires a drive circuit that includes at least two inverters. This leads to an increase in the size of the device.
本発明の目的は、以上示したように、圧縮機用やファン
用電動機をインバニタを用いて加賛速運転するのにルー
ムエアコンとしての装置の大形化を防ぐ駆動回路を提供
することにある。As stated above, it is an object of the present invention to provide a drive circuit that prevents the size of a room air conditioner from increasing when compressor and fan motors are operated at accelerated speeds using an invanitor. .
本発明は、インバータが直流電源を必要とし、一方、圧
縮機用電動機が１０００Ｗ程度に灼してファン用電動機
が２０〜３０Ｗと小容量であることに着目して、圧縮機
用電動機に供するインバータを制御する制御回路に対し
て直流電圧を与える補助直流電源にて、ファン用電動機
のインバータに直流電力を供給するようにして、ファン
用電動機のインバータに特に直流電源を設けない構成と
したものである。The present invention has developed an inverter for use with a compressor motor, focusing on the fact that an inverter requires a DC power source, while a compressor motor has a power of about 1000 W, and a fan motor has a small capacity of 20 to 30 W. The auxiliary DC power supply that supplies DC voltage to the control circuit that controls the fan motor inverter supplies DC power to the fan motor inverter, and the fan motor inverter is not provided with a DC power supply. be.
以下本発明の一実捲例を第２図〜第３図により説明スル
。第２図はセパレート式ルームエアコンを灼象に本発明
を適用した場合の概略構成図である。また、第３図は本
発明に係る第２図の要部詳細図である。両図共、第１図
と同一符号は同−物又は均等物を示す。Hereinafter, a winding example of the present invention will be explained with reference to FIGS. 2 and 3. FIG. 2 is a schematic diagram of the configuration when the present invention is applied to a separate room air conditioner. Further, FIG. 3 is a detailed view of the main part of FIG. 2 according to the present invention. In both figures, the same reference numerals as in FIG. 1 indicate the same or equivalent parts.
第２図において、セパレート式ルームエアコンは室内ユ
ニット２７と室外ユニット２８から成り、室内ユニット
２７は空気調和される部屋２９に配置されている。３０
は部屋２９の壁である。室内ユニット２７は室内ファン
およびその駆動電動機からなるファン装置３１と室内熱
交換器３２から構成される。また、室外ユニット２８は
圧縮機部３、圧縮機用電動機を駆動する第１の駆動回路
２−１．室外ファン３３、室外ファン用電動機３４、該
ファン用電動機を駆動する第２の駆動回路２−２、室外
熱交換器３５、キャピラリーチューブ３６から構成され
る。また、３７は冷媒循環用パイプである。そして、前
記第１の駆動回路と前記第２の駆動回路は低電圧直流ラ
イン３８で接続される。In FIG. 2, the separate room air conditioner consists of an indoor unit 27 and an outdoor unit 28, and the indoor unit 27 is placed in a room 29 to be air-conditioned. 30
is the wall of room 29. The indoor unit 27 includes a fan device 31 consisting of an indoor fan and its driving motor, and an indoor heat exchanger 32. The outdoor unit 28 also includes a first drive circuit 2-1 that drives the compressor section 3 and the compressor motor. It is composed of an outdoor fan 33, an outdoor fan motor 34, a second drive circuit 2-2 for driving the fan motor, an outdoor heat exchanger 35, and a capillary tube 36. Moreover, 37 is a refrigerant circulation pipe. The first drive circuit and the second drive circuit are connected by a low voltage DC line 38.
第３図は前記第１の駆動回路と前記第２の駆動回路の内
部線図を示した図である。FIG. 3 is a diagram showing an internal diagram of the first drive circuit and the second drive circuit.
第３図において、第１の駆動回路２−１はダイオード１
１〜１４と平滑コンデンサ６から成る主直流電源８、ト
ランジスタ１５−１〜２０−１とダイオード２１−１〜
２６−１から成る第１のインバータ、該インバータに制
御信号９−１ｓを供給する第１の制御回路９−１及び補
助直流電源１０から構成され、圧縮機部３内の圧縮機用
電動機４を駆動する。ここで、補助面ａｔ源１０は、第
３図に示す如く、交流電源１より降圧トランス３９、ダ
イオード４０〜４３、低電圧用コンデンサ４４と４８、
トランジスタ４７、抵抗４５及びツェナーダイオード４
６によって、例えば５ｖ程度の低電圧直流電圧を形成す
る回路であり、！ｌｆＪ記第１の制御回路９−１に低電
圧を与える。更に、該補助直流電源１０の低電圧出力は
、低電圧直流ライン３８を介して、前記第２の駆動回路
２−２に接続される。In FIG. 3, the first drive circuit 2-1 includes a diode 1
1 to 14 and a main DC power supply 8 consisting of a smoothing capacitor 6, transistors 15-1 to 20-1, and diodes 21-1 to
26-1, a first control circuit 9-1 that supplies a control signal 9-1s to the inverter, and an auxiliary DC power supply 10, drive Here, as shown in FIG. 3, the auxiliary surface AT source 10 is connected to the AC power source 1 through a step-down transformer 39, diodes 40 to 43, low voltage capacitors 44 and 48,
Transistor 47, resistor 45 and Zener diode 4
6, it is a circuit that forms a low voltage DC voltage of, for example, about 5V, and! lfJ A low voltage is applied to the first control circuit 9-1. Further, the low voltage output of the auxiliary DC power supply 10 is connected to the second drive circuit 2-2 via a low voltage DC line 38.
第２の駆動回路２２はトランジスタ１５−２〜２０−２
とダイオ〜−ド２１−２〜２６−２から成る第２のイン
バータ７−２及び該インバータ７−２に制御信号９−２
＠を与える第２の制御回路９−２から構成される。そし
て、第２のインバータ７−２及び第２の制御回路共、前
記第１の駆動回路２−１を構成する補助直流電＠９ｉり
直流電力の供給を受け、室外ファン３３用の電動機３４
を駆動する。The second drive circuit 22 includes transistors 15-2 to 20-2.
and a second inverter 7-2 consisting of diodes 21-2 to 26-2, and a control signal 9-2 to the inverter 7-2.
It is composed of a second control circuit 9-2 that provides @. Both the second inverter 7-2 and the second control circuit are supplied with DC power from the auxiliary DC power @9i constituting the first drive circuit 2-1, and the electric motor 34 for the outdoor fan 33 is supplied with DC power.
to drive.
以上説明した実施例では第２の駆動回路に、補助直流電
ｍｉｏの低電圧出力として、前記のトランジスタ４７や
ツェナーダイオード４６等で安定化された直流電圧が印
加されることから、電圧変動が少なく、電動機３３の運
転性能は向上する。In the embodiment described above, since the DC voltage stabilized by the transistor 47, Zener diode 46, etc. is applied to the second drive circuit as the low voltage output of the auxiliary DC current mio, there is little voltage fluctuation. The operating performance of the electric motor 33 is improved.
また、上記実権例では室外ファン用の電動機につき説明
したが、室内ファン朗の電動機をインバータで加賢速運
転する際にも本発明は適用で断る。In addition, although the above practical examples have been described with respect to a motor for an outdoor fan, the present invention is not applicable to the case where the motor of an indoor fan is operated at a high speed using an inverter.
本発明によれば、圧縮機用ｔ＃Ｉｈ機を駆動するに要す
る第１のインバータを含む第１の駆動回路中の補助直流
電源より、小容量のファン用電動機を駆動するに要する
第２のインバータへの直流電力を供給することから、特
に第２のインバータのための直流電源を設ける必要がな
く、装置の小形化を図れる。更に、補助直流電源の出力
直流電圧は低電圧であり、剪記第２のインバータを耐圧
の低いトランジスタ等の半導体素子で構成で籾ることか
ら、価格の低下を図れる効果がある。According to the present invention, the auxiliary DC power supply in the first drive circuit including the first inverter, which is required to drive the compressor t#Ih machine, supplies the second power supply required to drive the small capacity fan motor. Since DC power is supplied to the inverter, there is no need to provide a DC power supply for the second inverter, and the device can be made smaller. Furthermore, since the output DC voltage of the auxiliary DC power supply is a low voltage, and the second inverter is constructed of semiconductor elements such as transistors with low withstand voltage, it is possible to reduce the cost.
第１図は従来例説明図、第、２図は本発明−実権例の概
略構成図、第３図は第２図の要部詳細図である。
４・・・圧縮機用電動機、７−１・・・第１のインバー
タ、９−１・・・第１の制御回路、１０゛・・・補助直
流電源、３２．３５・・・熱交換器、３３・・・室外フ
ァン、３４・・・ファン用電動機、７−２・・・第２の
インバータ。
２１ＰＩｌｆ）FIG. 1 is an explanatory diagram of a conventional example, FIGS. 2 and 2 are schematic configuration diagrams of an actual example of the present invention, and FIG. 3 is a detailed diagram of the main part of FIG. 2. 4... Compressor electric motor, 7-1... First inverter, 9-1... First control circuit, 10゛... Auxiliary DC power supply, 32.35... Heat exchanger , 33... Outdoor fan, 34... Fan electric motor, 7-2... Second inverter. 21PIlf)
Claims (1)
駆動する第１のインバータと、該第１のインバータを制
御する第１の制御回路上、該第１の制御回路に直流電圧
を印加する補助直流電源と、熱交換器と、該熱交換器の
冷却に供するファンと診ファン用の電動機と該ファン用
電動機を駆動する第２のイ゛ンバータを備え九空０４＠
において、前記第２のインバータに供給される直流電力
は前記補助直流電源より供給されることを特徴とする空
ｌ！ＩＩ機用駆動装置。1. A compressor, a motor for the compressor, a first inverter that drives the motor for the compressor, a first control circuit that controls the first inverter, and a DC voltage applied to the first control circuit. The Kuku 04 is equipped with an auxiliary DC power source that applies the power, a heat exchanger, a fan for cooling the heat exchanger, an electric motor for the diagnostic fan, and a second inverter that drives the electric motor for the fan.
The DC power supplied to the second inverter is supplied from the auxiliary DC power supply. Drive unit for II machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203542A JPS58107092A (en) | 1981-12-18 | 1981-12-18 | Driving device for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203542A JPS58107092A (en) | 1981-12-18 | 1981-12-18 | Driving device for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58107092A true JPS58107092A (en) | 1983-06-25 |
| JPH0347080B2 JPH0347080B2 (en) | 1991-07-18 |
Family
ID=16475862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56203542A Granted JPS58107092A (en) | 1981-12-18 | 1981-12-18 | Driving device for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58107092A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6952929B2 (en) * | 2002-06-27 | 2005-10-11 | Sanden Corporation | Air conditioning systems for vehicles, comprising such air conditioning systems, and methods for driving hybrid compressors of such air conditioning systems |
| EP1641113A1 (en) * | 2004-09-23 | 2006-03-29 | Lg Electronics Inc. | Speed control system of fan motor of air conditioner |
| CN102252374A (en) * | 2011-06-30 | 2011-11-23 | 吴尚 | Air conditioner and air-conditioning system |
| WO2017130618A1 (en) * | 2016-01-27 | 2017-08-03 | 日立ジョンソンコントロールズ空調株式会社 | Outdoor unit for air conditioner |
-
1981
- 1981-12-18 JP JP56203542A patent/JPS58107092A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6952929B2 (en) * | 2002-06-27 | 2005-10-11 | Sanden Corporation | Air conditioning systems for vehicles, comprising such air conditioning systems, and methods for driving hybrid compressors of such air conditioning systems |
| EP1641113A1 (en) * | 2004-09-23 | 2006-03-29 | Lg Electronics Inc. | Speed control system of fan motor of air conditioner |
| CN102252374A (en) * | 2011-06-30 | 2011-11-23 | 吴尚 | Air conditioner and air-conditioning system |
| WO2017130618A1 (en) * | 2016-01-27 | 2017-08-03 | 日立ジョンソンコントロールズ空調株式会社 | Outdoor unit for air conditioner |
| JP2017133737A (en) * | 2016-01-27 | 2017-08-03 | 日立ジョンソンコントロールズ空調株式会社 | Outdoor unit of air conditioner |
| CN108474569A (en) * | 2016-01-27 | 2018-08-31 | 日立江森自控空调有限公司 | The outdoor unit of air conditioner |
| US10612797B2 (en) | 2016-01-27 | 2020-04-07 | Hitachi-Johnson Controls Air Conditioning, Inc. | Outdoor unit for air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0347080B2 (en) | 1991-07-18 |
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