JPH05272795A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH05272795A JPH05272795A JP4068081A JP6808192A JPH05272795A JP H05272795 A JPH05272795 A JP H05272795A JP 4068081 A JP4068081 A JP 4068081A JP 6808192 A JP6808192 A JP 6808192A JP H05272795 A JPH05272795 A JP H05272795A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- indoor
- outdoor
- control circuit
- transmission
- 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
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、分離型空気調和機の室
内機と室内機の間における信号伝送に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to signal transmission between an indoor unit and an indoor unit of a separation type air conditioner.
【０００２】[0002]
【従来の技術】従来の空気調和機の信号伝送回路は特開
平２−１４６４５６号公報に記載のように、室内機と室
外機の間で電力の伝送を行なう電源接続線とは別に信号
伝送用として１本もしくは２本の信号接続線が必要であ
った。2. Description of the Related Art A conventional signal transmission circuit for an air conditioner is used for signal transmission separately from a power supply connection line for transmitting electric power between an indoor unit and an outdoor unit, as described in Japanese Patent Application Laid-Open No. 2-146456. As a result, one or two signal connection lines were required.
【０００３】[0003]
【発明が解決しようとする課題】このため、従来の空気
調和機では据付工事において電源接続線と信号接続線の
接続を誤った場合、機器の破壊や動作不良を起こす問題
があった。また、室内機と室外機の接続線の本数が多い
ほど配線工事の費用が増大する問題もあった。Therefore, in the conventional air conditioner, if the power supply connection line and the signal connection line are erroneously connected during the installation work, there is a problem that the device is broken or malfunctions. There is also a problem that the cost of wiring work increases as the number of connecting wires between the indoor unit and the outdoor unit increases.
【０００４】本発明は、電源接続線と信号接続線を共用
化し、接続線の本数を削減すると共に、接続線の接続を
誤った場合の機器の破壊や動作不良を防止することを目
的とする。It is an object of the present invention to share a power supply connection line and a signal connection line, reduce the number of connection lines, and prevent destruction or malfunction of equipment when the connection of connection lines is incorrect. ..
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、室内機と室外機のそれぞれに電力線搬送通信を行な
うための送信回路、及び受信回路を設け、これらにより
室内機と室外機の間で電力の伝送を行なう接続線の線間
に伝送信号で変調された高周波信号を重畳し、電力線搬
送通信により信号の伝送を行なうことで接続線の共用化
を実現するものである。In order to achieve the above object, a transmission circuit and a reception circuit for performing power line carrier communication are provided in each of an indoor unit and an outdoor unit, and these are provided between the indoor unit and the outdoor unit. In this method, a high-frequency signal modulated by a transmission signal is superposed between the connecting lines for transmitting the electric power, and the signal is transmitted by the power line carrier communication to realize the sharing of the connecting lines.
【０００６】[0006]
【作用】電力線搬送通信により、従来は電力の伝送のみ
に使用していた接続線を用いて、電力の伝送と信号の伝
送の双方が可能になるため、信号伝送専用の接続線が不
要となり、据付工事における結線作業は単純になる。ま
た、高周波信号を変調して線間に重畳するため接続線の
極性が通信に影響することはないので、単相電源の空気
調和機においては接続線の極性を定める必要がなく、接
続誤りによる機器の破壊や動作不良は発生しなくなる。With the power line carrier communication, both the power transmission and the signal transmission can be performed by using the connection line which has been conventionally used only for the power transmission, so that the connection line dedicated to the signal transmission becomes unnecessary, Wiring work in installation work becomes simple. In addition, since the polarity of the connection line does not affect communication because it modulates the high-frequency signal and superimposes it between the lines, it is not necessary to determine the polarity of the connection line in an air conditioner with a single-phase power supply, and it is possible that there is No equipment damage or malfunction will occur.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図１、図２により
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
【０００８】図１の回路全体構成図において、室内機１
と室外機２は２本の接続線Ａ，Ｂにより接続され、交流
電源１３の電力供給を受けて動作する。室内制御回路３
は室内送風機１０を制御すると共に、電力線搬送通信に
より接続線Ａ，Ｂを介して室外制御回路４と信号伝送を
行い室外制御回路４に運転指令を送出する。室外制御回
路４は、室外送風機１１、圧縮機１２を制御すると共
に、電力線搬送通信により接続線Ａ，Ｂを介して室内制
御回路３と信号伝送を行い、室外機の運転状態を室内制
御回路３に送出する。室内送信回路５、室内受信回路
６、室外送信回路７、室外受信回路８は電力線搬送通信
を行うための回路である。なお、９はブロッキングフィ
ルタであり電力線搬送通信の搬送波が交流電源１３側に
漏洩することを防止するためのものである。In the overall circuit diagram of FIG. 1, an indoor unit 1
The outdoor unit 2 and the outdoor unit 2 are connected by two connecting lines A and B, and are operated by receiving power from the AC power supply 13. Indoor control circuit 3
Controls the indoor blower 10 and transmits a signal to the outdoor control circuit 4 by transmitting signals to and from the outdoor control circuit 4 via the connection lines A and B by power line carrier communication. The outdoor control circuit 4 controls the outdoor blower 11 and the compressor 12, and also performs signal transmission with the indoor control circuit 3 via the connection lines A and B by power line carrier communication to determine the operating state of the outdoor unit. To send to. The indoor transmitting circuit 5, the indoor receiving circuit 6, the outdoor transmitting circuit 7, and the outdoor receiving circuit 8 are circuits for performing power line carrier communication. A blocking filter 9 is provided to prevent the carrier wave of the power line carrier communication from leaking to the AC power supply 13 side.
【０００９】次に、上記構成における信号伝送について
説明する。Next, signal transmission in the above configuration will be described.
【００１０】室外制御回路４から室内制御回路３に信号
の伝送を行う場合、室外制御回路４から室外送信回路７
に伝送信号が入力され、図２のＰ部に示すように室外送
信回路７は伝送信号により変調された１２５ＫＨｚ，約
１Ｖの高周波信号を接続線Ａ，Ｂの電力線上に送信す
る。室内受信回路６は電力線上に重畳されたこの信号を
受信、復調することで室内制御回路３に信号の伝送を行
う。When signals are transmitted from the outdoor control circuit 4 to the indoor control circuit 3, the outdoor control circuit 4 to the outdoor transmission circuit 7 are used.
2, the outdoor transmission circuit 7 transmits the high frequency signal of 125 KHz, about 1 V, which is modulated by the transmission signal, on the power lines of the connection lines A and B as shown in P part of FIG. The indoor reception circuit 6 transmits the signal to the indoor control circuit 3 by receiving and demodulating this signal superimposed on the power line.
【００１１】室内制御回路３から室外制御回路４に信号
の伝送を行う場合は、室内制御回路３から室内送信回路
５に伝送信号が入力され、図２のＱ部に示すように室内
送信回路５は伝送信号により変調された１２５ＫＨｚ，
約１Ｖの高周波信号を接続線Ａ，Ｂ、の電力線上に送信
する。室外受信回路８は電力線上に重畳されたこの信号
を受信、復調することで室外制御回路４に信号の伝送を
行う。When the signal is transmitted from the indoor control circuit 3 to the outdoor control circuit 4, the transmission signal is input from the indoor control circuit 3 to the indoor transmission circuit 5, and the indoor transmission circuit 5 is sent as indicated by Q in FIG. Is 125 KHz modulated by the transmitted signal,
A high frequency signal of about 1 V is transmitted on the power lines of the connection lines A and B. The outdoor receiving circuit 8 transmits the signal to the outdoor control circuit 4 by receiving and demodulating this signal superimposed on the power line.
【００１２】室内制御回路３と室外制御回路４は送信、
受信の動作を交互に繰り返すことにより、継続して信号
の伝送を行う。The indoor control circuit 3 and the outdoor control circuit 4 transmit,
The signal is continuously transmitted by alternately repeating the receiving operation.
【００１３】ここで、接続線Ａ，Ｂを室内機１と室外機
２の間で交叉させ、極性を反転させた場合、電力の伝
送、信号の伝送、共に波形の極性とは無関係であるため
動作には全く影響しない。Here, when the connection lines A and B are crossed between the indoor unit 1 and the outdoor unit 2 and the polarities are inverted, both power transmission and signal transmission are independent of the waveform polarities. It does not affect the operation at all.
【００１４】本実施例によれば、接続線２本のみで電力
の伝送と信号の伝送ができ、また、接続線の結線作業時
は接続の極性を考慮せず作業できるため、据付時の配線
コストの低減、作業時間の短縮、作業信頼性の向上に効
果がある。According to the present embodiment, power and signals can be transmitted with only two connecting lines, and since the polarity of the connection can be considered when connecting the connecting lines, the wiring at the time of installation It is effective in reducing cost, working time, and improving work reliability.
【００１５】[0015]
【発明の効果】本発明によれば、従来は電力の伝送のみ
に使用していた接続線を用いて、電力線搬送通信によ
り、電力の伝送と信号伝送の双方が可能になる。これに
より、接続線の本数を削減できるため、配線コストの低
減効果、および据付工事における結線作業の簡略化の効
果がある。また、単相電源の空気調和機においては、接
続線の本数は２本しか必要無く、しかも、接続の極性を
考慮する必要が無いため、接続線の接続誤りによる機器
の破壊や動作不良の心配は無くなり、据付時の作業効
率、作業信頼性の向上に効果がある。According to the present invention, both power transmission and signal transmission can be performed by power line carrier communication using a connection line which has been conventionally used only for power transmission. As a result, the number of connecting wires can be reduced, which has an effect of reducing the wiring cost and an effect of simplifying the wiring work in the installation work. Further, in an air conditioner with a single-phase power supply, the number of connecting wires is only two, and it is not necessary to consider the polarity of the connecting wires. Therefore, there is a risk of equipment damage or malfunction due to incorrect connecting wires. Is eliminated, which is effective in improving work efficiency and work reliability during installation.
【図１】実施例における回路全体構成図である。FIG. 1 is an overall configuration diagram of a circuit according to an embodiment.
【図２】実施例における信号伝送に関するタイミングチ
ャートである。FIG. 2 is a timing chart regarding signal transmission in an example.
１……室内機、 ２……室外機、 ３……室内制御回路、 ４……室外制御回路、 ５……室内送信回路、 ６……室内受信回路、 ７……室外送信回路、 ８……室外受信回路、 ９……ブロッキングフィルタ、 １０…室内送風機、 １１…室外送風機、 １２…圧縮機、 １３…交流電源、 Ａ，Ｂ……接続線。 1 ... Indoor unit, 2 ... Outdoor unit, 3 ... Indoor control circuit, 4 ... Outdoor control circuit, 5 ... Indoor transmission circuit, 6 ... Indoor reception circuit, 7 ... Outdoor transmission circuit, 8 ... Outdoor receiving circuit, 9 ... Blocking filter, 10 ... Indoor blower, 11 ... Outdoor blower, 12 ... Compressor, 13 ... AC power supply, A, B ... Connection line.
Claims (1)
交換器と圧縮機と送風機を具備した室外機を、冷媒配管
で接続した空気調和機において、前記室内機と前記室外
機の間で電力の伝送を行なう接続線に高周波信号を重畳
し、電力線搬送通信により前記室内機と前記室外機の間
で信号伝送を行なうことを特徴とする空気調和機。1. An air conditioner in which an indoor unit equipped with a heat exchanger and a blower, and an outdoor unit equipped with a heat exchanger, a compressor, and a blower are connected by refrigerant pipes. An air conditioner, characterized in that a high-frequency signal is superimposed on a connection line for transmitting electric power between the indoor units and the indoor unit and the outdoor unit by power line carrier communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4068081A JPH05272795A (en) | 1992-03-26 | 1992-03-26 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4068081A JPH05272795A (en) | 1992-03-26 | 1992-03-26 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05272795A true JPH05272795A (en) | 1993-10-19 |
Family
ID=13363448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4068081A Pending JPH05272795A (en) | 1992-03-26 | 1992-03-26 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05272795A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6865898B2 (en) | 2002-06-24 | 2005-03-15 | Hitachi, Ltd. | Air conditioning system |
| JP2006029642A (en) * | 2004-07-14 | 2006-02-02 | Hitachi Ltd | Air conditioner |
| EP2416080A3 (en) * | 2010-08-05 | 2017-02-01 | Samsung Electronics Co., Ltd. | Power device and safety control method thereof |
| JP2019211121A (en) * | 2018-05-31 | 2019-12-12 | 三機工業株式会社 | Air conditioning system |
-
1992
- 1992-03-26 JP JP4068081A patent/JPH05272795A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6865898B2 (en) | 2002-06-24 | 2005-03-15 | Hitachi, Ltd. | Air conditioning system |
| JP2006029642A (en) * | 2004-07-14 | 2006-02-02 | Hitachi Ltd | Air conditioner |
| EP2416080A3 (en) * | 2010-08-05 | 2017-02-01 | Samsung Electronics Co., Ltd. | Power device and safety control method thereof |
| JP2019211121A (en) * | 2018-05-31 | 2019-12-12 | 三機工業株式会社 | Air conditioning system |
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