JPH0221153A - Interface circuit for air conditioner - Google Patents
Interface circuit for air conditionerInfo
- Publication number
- JPH0221153A JPH0221153A JP63168718A JP16871888A JPH0221153A JP H0221153 A JPH0221153 A JP H0221153A JP 63168718 A JP63168718 A JP 63168718A JP 16871888 A JP16871888 A JP 16871888A JP H0221153 A JPH0221153 A JP H0221153A
- Authority
- JP
- Japan
- Prior art keywords
- outdoor
- circuit
- control
- indoor
- power supply
- 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
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000008054 signal transmission Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000010349 pulsation Effects 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、セパレート式空気調和機のインターフェイス
回路に係わり、特にインバータ式ルームエアコンのよう
に室外ユニットに適切な直流電源を有する空気調和機の
室内外ユモットの電気的接続の簡素化に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an interface circuit for a separate air conditioner, and is particularly applicable to an air conditioner such as an inverter type room air conditioner that has an appropriate DC power supply in its outdoor unit. It concerns the simplification of electrical connections between indoor and outdoor humottes.
従来の分離式空気調和機は、特開昭６２−１７５５４６
号公報に記載のように、室内外信号の伝送については、
専用の接続ケーブルが設けられていた。上記公知例は接
続ケーブルが３本の例であるが、電力線２本、信号線２
本、°計４本の方法もあり、以下この回路について説明
する。第４図は、従来のインバータ式ルームエアコンの
電気回路ブロック図を示したもので、室内ユニットと室
外ユニットは２本の電力供給用ケーブル、１５と２本の
信号伝送用ケーブル、１６で接続されており、それぞれ
のユニットには、それぞれの制御回路を駆動するための
制御回路用電源、１３あるいは１０やインターフェイス
回路、１４あるいは１７が設けられていた。The conventional separate air conditioner is disclosed in Japanese Patent Application Laid-Open No. 62-175546.
As stated in the publication, regarding the transmission of indoor and outdoor signals,
A dedicated connection cable was provided. The above known example has three connection cables, but there are two power lines and two signal lines.
There are four methods in total, and this circuit will be explained below. Figure 4 shows an electric circuit block diagram of a conventional inverter-type room air conditioner. The indoor unit and outdoor unit are connected by two power supply cables, 15, and two signal transmission cables, 16. Each unit was provided with a control circuit power supply 13 or 10 and an interface circuit 14 or 17 for driving the respective control circuits.
Ｃ発明が解決しようとする課題〕
この様にインバータ式ルームエアコンの例でもわかる様
に、従来技術は室内外ユニットの電気的接続線数が多く
据付性についての配慮がなされておらず、制御電源回路
と信号伝送のためのインターフェイス回路を各ユニット
ごとに別々に設けていたため１回路構成が複雑で、コス
トアップの原因にもなっていた。[Problem to be solved by invention C] As can be seen from the example of an inverter-type room air conditioner, the conventional technology has a large number of electrical connection wires for indoor and outdoor units, and no consideration has been given to ease of installation, and the control power supply Since circuits and interface circuits for signal transmission were provided separately for each unit, the configuration of each circuit was complicated, which also led to increased costs.
本発明の目的は、電力給電と室内外信号伝送を２本１組
の接続ケーブルで同時に行うことにより、据付性を改善
するとともに、制御電源回路とインターフェイス回路を
合成して簡素化を図り、廉価で信頼性が高いインターフ
ェイス回路を提供することにある。The purpose of the present invention is to simultaneously perform power supply and indoor/outdoor signal transmission using a set of two connecting cables, thereby improving installation ease, combining a control power supply circuit and an interface circuit, simplifying the process, and achieving a low cost. The objective is to provide a highly reliable interface circuit.
上記目的は、室外ユニットに直接、商用電圧を給電して
制御電圧を作成し、制御電圧を直流のまま室内ユニット
に送電すると共に、上記送電路を電力送電に支障が起き
ない程度の高い周波数で遮断、接続を繰り返すことによ
り信号伝送を行う様に、分離式空気調和機のインターフ
ェイス回路を構成することにより達成される。The above purpose is to directly supply commercial voltage to the outdoor unit to create a control voltage, transmit the control voltage as direct current to the indoor unit, and to run the power transmission line at a high frequency that does not interfere with power transmission. This is achieved by configuring the interface circuit of the separate air conditioner so that signal transmission is performed by repeatedly disconnecting and connecting.
〔作用〕
室内ユニットには、室外ユニットで作成した直流の制御
電圧を、２本の接続ケーブルの介して供給し、しかも各
ユニット内で、伝送信号に応じて、十分高い周波数で上
記直流制御電圧をオンオフする構成になっているため、
室外ユニットより室内ユニットへの電力供給を損うこと
なく、室内外の信号伝送が行えるものである。電力送電
には、上記２本の接続ケーブルを介して、−室以上のデ
ユーティでかつ、室内側で消費電力に応じて十分高い周
波数でのオンオフ動作であることが必要で、この信号を
十分大きな遮断周波数のローパスフィルターを挿入する
ことにより、電力送電と信号伝送を両立させることがで
きる。[Function] The indoor unit is supplied with the DC control voltage generated by the outdoor unit via two connecting cables, and within each unit, the DC control voltage is applied at a sufficiently high frequency according to the transmission signal. Because it is configured to turn on and off,
This allows indoor and outdoor signal transmission without impairing the power supply from the outdoor unit to the indoor unit. For power transmission, it is necessary to conduct on/off operation via the above two connection cables with a duty of -room or higher and at a sufficiently high frequency according to the power consumption indoors, and this signal must be transmitted with a sufficiently high frequency. By inserting a low-pass filter with a cut-off frequency, it is possible to achieve both power transmission and signal transmission.
以下、本発明の一実施例を第１図〜第３図により説明す
る。第１図は、本発明のインバータ式ルームエアコンの
電気回路ブロック図であり、室内側は、室温センサー４
．リモートコントローラ５および室内制御電源回路３か
らの信号を室内制御回路２に入力して、室内表示器６お
よび室内ファンモータ７を運転制御する構成であり、室
外側は。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is an electric circuit block diagram of an inverter type room air conditioner according to the present invention.
．． The configuration is such that signals from the remote controller 5 and the indoor control power supply circuit 3 are input to the indoor control circuit 2 to control the operation of the indoor display 6 and the indoor fan motor 7.
電源１を受けて整流化したあと、室内側よりの指令回転
数に応じて転流する交流電圧を作成する室外パワー回路
９．室外制御電源回路１０の信号を受けて、室外パワー
回路９の転流信号を作成する室外制御回路１１．圧縮機
モータ１２、およびファンモータ１３等から構成されて
いる。室内外制御電源回路３又は１０は、それぞれの制
御回路およびファンモータで消費される制御電圧を作成
すると共に、室内外を結ぶインターフェイス回路でもあ
り、信号の伝送の役割も担っている。9. An outdoor power circuit that receives the power source 1, rectifies it, and then creates an AC voltage that is commutated according to the command rotation speed from the indoor side. An outdoor control circuit 11 that receives a signal from the outdoor control power circuit 10 and creates a commutation signal for the outdoor power circuit 9. It is composed of a compressor motor 12, a fan motor 13, and the like. The indoor/outdoor control power supply circuit 3 or 10 creates control voltages consumed by the respective control circuits and fan motors, and is also an interface circuit connecting the indoor and outdoor areas, and also plays the role of transmitting signals.
第２図は、室内外制御電源回路３および１０の詳細回路
図であり、２本の接続ケーブル８１゜８２および、室内
外電源コンデンサ３１，１０１で形成される閉回路の途
中に、室内側、室外側それぞれに、電路遮断用トランジ
スタ３２，１０２および、電流検出用抵抗Ｒｓ、Ｒｃを
挿入している。接続ケーブル８１．８２間に加わる電力
送電のための電圧は直流１４Ｖであり、十分大きな容量
の電解コンデンサ３１，１０１により、各二ニット内の
電源回路部へのデカップリングを行っている。相対する
（室内ユニットより室外ユニットへ；又は室外ユニット
より室内ユニットへ）電路遮断信号は、それぞれ３ａ、
１０ａより入力され、電路遮断の確認は３ｂ、１０ｂよ
り出力される。FIG. 2 is a detailed circuit diagram of the indoor/outdoor control power supply circuits 3 and 10. In the middle of the closed circuit formed by the two connection cables 81 and 82 and the indoor/outdoor power supply capacitors 31, 101, there are Transistors 32 and 102 for circuit interruption and resistors Rs and Rc for current detection are inserted on each of the outdoor sides. The voltage applied between the connecting cables 81 and 82 for power transmission is 14 V DC, and decoupling to the power supply circuit within each unit is performed by electrolytic capacitors 31 and 101 of sufficiently large capacity. The opposing (from the indoor unit to the outdoor unit; or from the outdoor unit to the indoor unit) electrical circuit interruption signal is 3a, respectively.
The signal is input from 10a, and the confirmation of electric circuit interruption is output from 3b and 10b.
この回路の動作の詳細を第３図にて説明する。The details of the operation of this circuit will be explained with reference to FIG.
室外より室内への電力供給が開始されたとき、すなわち
電源投入時は、信号伝送を確実に行うため一定のデイレ
イ時間を設け、この期間は、トランジスタ３２、および
１０２がオンする様に、入力信号３ａ＊ｌｏａはＬｏｗ
信号を保持する。その後、７ビツトは、室内側より室外
側への信号伝送内容（圧縮機回転数、ファンモータ動作
、弁動作）をシリアル伝送し、続く４ビツトは、室外側
より室内側への信号伝送内容（デフロスト、異常処理、
停止処理）をシリアル伝送の形態で割り付けしである。When power is supplied indoors from outside, that is, when the power is turned on, a certain delay time is provided to ensure signal transmission. During this period, the input signal is 3a*loa is Low
Hold the signal. After that, the 7 bits serially transmit the signal transmission contents from the indoor side to the outdoor side (compressor rotation speed, fan motor operation, valve operation), and the following 4 bits serially transmit the signal transmission contents from the outdoor side to the indoor side ( defrost, abnormality handling,
(stop processing) is allocated in the form of serial transmission.
この１１ビツトおよび続く２ビツトのダミーを合わせ１
３ビツトを１フレーム（情報の最小単位）として信号伝
送を行っている。図では、最初の７ビツトでｒｌｏｌｌ
ｏｌｏＪの情報を室内側より室外側に伝送しており、室
外側では、電流検出抵抗Ｒｅにより通電々流を検出して
、受信４号としてｌｏｂより出力される。逆に続く４ビ
ツトは、室外側で電路遮断を行い、室内側で受信々号３
ｂとして受信される。この方式では、送信信号の内容に
よっては、全ビット“１″となるため。Add these 11 bits and the following 2 bits of dummy to 1
Signal transmission is performed using 3 bits as one frame (minimum unit of information). In the figure, the first 7 bits are rloll
The information of oloJ is transmitted from the indoor side to the outdoor side, and on the outdoor side, the current detection resistor Re detects the current flow and outputs it from the lob as reception number 4. The 4 bits that follow in the opposite direction cut off the electric circuit outside the room and cut off the receiving signal 3 inside the room.
b. In this method, all bits become "1" depending on the content of the transmitted signal.
電源回路が連続して遮断され、電源電圧が低下する心配
があるが、実施例では、２フレームごとに電Ｓ電圧を再
充電する期間を設け、リフレッシュ動作を行っている。Although there is a concern that the power supply circuit may be continuously cut off and the power supply voltage may drop, in the embodiment, a refresh operation is performed by providing a period for recharging the S voltage every two frames.
リフレッシュの仕方については、本実施例に限らず、各
ビットごとに行う方法や、伝送信号の内容に応じてリフ
レッシュインタバルを変える方法環１種々考えられるが
、いずれにしても（１）電路遮断割合が一定以上になら
ない様にする。（２）電路遮断インターバルが大きいた
め、電源電圧の脈動が発生しないよう、電源コンデンサ
３１および１０１に電気二重層コンデンサ等大きな容量
のものを使用する必要がある。Regarding the method of refreshing, there are various methods that can be considered, including not only this example but also a method of performing it for each bit or a method of changing the refresh interval according to the content of the transmission signal, but in any case, (1) the power circuit interruption rate Make sure that it does not exceed a certain level. (2) Since the circuit interruption interval is long, it is necessary to use large capacitance capacitors such as electric double layer capacitors for the power supply capacitors 31 and 101 to prevent pulsations in the power supply voltage.
本実施例によれば、室内外の制御電源が、室内外共通の
単一電源で実現できるため、室内外制御回路の基準電位
分離のため、インターフェイス回路に使用しているホト
カプラを除去できる他、室外側にパワーリレーを設ける
構造となるため、室外パワー回路の平滑コンデンサへの
突入電流を防止する、突入電流制限回路が簡略化できる
ことおよび不測の異常状態を検出して、入力電源回路を
遮断する保護回路が簡略化できること等、実施例特有の
効果がある。According to this embodiment, the indoor and outdoor control power sources can be realized using a single power source that is common both indoors and outdoors.In addition to eliminating the photocoupler used in the interface circuit to separate the reference potentials of the indoor and outdoor control circuits, Since the power relay is installed on the outdoor side, the inrush current limiting circuit that prevents inrush current from flowing into the smoothing capacitor of the outdoor power circuit can be simplified, and it can detect unexpected abnormal conditions and shut off the input power circuit. There are effects unique to this embodiment, such as the ability to simplify the protection circuit.
本発明によれば、室外ユニットに直接、商用電圧を給電
して制御電圧を作成し、制御電圧を直流のまま室内ユニ
ットに送電すると共に、上記送電経路を電力送電に支障
が起きない程度の高い周波数でオン、オフを繰返すこと
により信号伝送も併せてとり行う構成とすることにより
、室内外の接続ケーブル線数を２本に減らすことができ
るため、製品の据付性を大巾に向上できる他５室内側の
電源回路を小形、簡略化できる等、優れた効果がある。According to the present invention, a control voltage is created by directly supplying commercial voltage to an outdoor unit, and the control voltage is transmitted to the indoor unit as direct current, and the power transmission path is set to a high level that does not cause any trouble in power transmission. By using a configuration that also transmits signals by repeatedly turning on and off based on the frequency, the number of indoor and outdoor connection cables can be reduced to two, which greatly improves the ease of installation of the product. 5. It has excellent effects such as being able to downsize and simplify the power supply circuit inside the room.
第１図は本発明の一実施例のインバータ式ルームエアコ
ンの電気回路ブロック図、第２図は室内外制御電源回路
の詳細図、第３図は第２図記載回路の動作説明図、第４
図は従来のインバータ式ルームエアコンの電気回路ブロ
ック図である。
１・・・電源、 ２・・・室内制御回路、３
・・・室内制御電源回路、４・・・室温センサー５・・
・リモートコントローラ、
６・・室内表示器、 ７・・・室内ファンモータ
、８・・接続ケーブル、 ９・・・室外パワー回路、
１ｏ・・・室外制御電源回路、
１１・・・室外制御回路、 １２・・・圧縮機モータ
、１３・・・室外ファンモータ、
１４・・・室内インターフェイス回路、１５．１６・・
・接続ケーブル、
１７・・・室外インターフェイス回路。
ｊ・−室ηΦ１」伴Ｐ黴漏国冷 ７・−艷外パワーロ発
晃２凶
ノ２−−・ンジミ＾執」−−７
（室府櫂ｌＪ＞
く室７トイｑかFig. 1 is an electrical circuit block diagram of an inverter-type room air conditioner according to an embodiment of the present invention, Fig. 2 is a detailed diagram of the indoor/outdoor control power supply circuit, Fig. 3 is an explanatory diagram of the operation of the circuit described in Fig. 2, and Fig. 4 is a detailed diagram of the indoor/outdoor control power supply circuit.
The figure is an electrical circuit block diagram of a conventional inverter type room air conditioner. 1...Power supply, 2...Indoor control circuit, 3
...Indoor control power supply circuit, 4...Room temperature sensor 5...
-Remote controller, 6...Indoor display, 7...Indoor fan motor, 8...Connection cable, 9...Outdoor power circuit,
1o...Outdoor control power supply circuit, 11...Outdoor control circuit, 12...Compressor motor, 13...Outdoor fan motor, 14...Indoor interface circuit, 15.16...
-Connection cable, 17...Outdoor interface circuit. j・-Muro ηΦ1” Ban P Kokuro Kokurei 7・-Kugai Power Ro Hakko 2 Kyouno 2--Njimi ＾ ”--7 (Murofu Kai lJ> Kumuro 7 Toyq?
Claims (1)
タを駆動制御する室内制御回路とで構成される室内ユニ
ットと、熱交換器とファン及びファンモータと圧縮機及
び圧縮機モータと該ファンモータ及び該圧縮機モータを
駆動制御する室外制御回路とで構成される室外ユニット
から成る分離式空気調和機において、室外ユニットに直
接給電された商用電圧より直流電圧を作成し、該直流電
圧を室内ユニットに送電することを特徴とする空気調和
機のインターフエイス回路。1. An indoor unit consisting of a heat exchanger, a fan, a fan motor, and an indoor control circuit for driving and controlling the fan motor, a heat exchanger, a fan, a fan motor, a compressor, a compressor motor, the fan motor, and In a separate air conditioner consisting of an outdoor unit configured with an outdoor control circuit that drives and controls the compressor motor, a DC voltage is created from the commercial voltage that is directly supplied to the outdoor unit, and the DC voltage is sent to the indoor unit. An air conditioner interface circuit that transmits power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63168718A JP3009148B2 (en) | 1988-07-08 | 1988-07-08 | Air conditioner interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63168718A JP3009148B2 (en) | 1988-07-08 | 1988-07-08 | Air conditioner interface circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0221153A true JPH0221153A (en) | 1990-01-24 |
| JP3009148B2 JP3009148B2 (en) | 2000-02-14 |
Family
ID=15873157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63168718A Expired - Lifetime JP3009148B2 (en) | 1988-07-08 | 1988-07-08 | Air conditioner interface circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3009148B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100836821B1 (en) * | 2007-02-16 | 2008-06-12 | 삼성전자주식회사 | Air conditioner system for reducing electric power on waiting mode and operating method thereof |
| DE102016124219A1 (en) | 2015-12-14 | 2017-06-14 | Nishikawa Rubber Co., Ltd. | Sealing strip and sealing strip attachment structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62108948A (en) * | 1985-11-05 | 1987-05-20 | Mitsubishi Electric Corp | Communication equipment for separate type air-conditioning machine |
-
1988
- 1988-07-08 JP JP63168718A patent/JP3009148B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62108948A (en) * | 1985-11-05 | 1987-05-20 | Mitsubishi Electric Corp | Communication equipment for separate type air-conditioning machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100836821B1 (en) * | 2007-02-16 | 2008-06-12 | 삼성전자주식회사 | Air conditioner system for reducing electric power on waiting mode and operating method thereof |
| DE102016124219A1 (en) | 2015-12-14 | 2017-06-14 | Nishikawa Rubber Co., Ltd. | Sealing strip and sealing strip attachment structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3009148B2 (en) | 2000-02-14 |
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