JP2870916B2 - Control device for air conditioner - Google Patents
Control device for air conditionerInfo
- Publication number
- JP2870916B2 JP2870916B2 JP2011376A JP1137690A JP2870916B2 JP 2870916 B2 JP2870916 B2 JP 2870916B2 JP 2011376 A JP2011376 A JP 2011376A JP 1137690 A JP1137690 A JP 1137690A JP 2870916 B2 JP2870916 B2 JP 2870916B2
- Authority
- JP
- Japan
- Prior art keywords
- unit
- outdoor
- air conditioner
- control device
- circuit
- 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.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Air Conditioning Control Device (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、セパレート型空気調和機に於ける室内機と
室外機間で通信信号の送受信を行う通信手段の改善及び
設置工事の改善に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in communication means for transmitting and receiving communication signals between an indoor unit and an outdoor unit in a separate type air conditioner, and improvement in installation work. .
従来の技術 従来の通信手段は、室内機の電子制御装置と室外機の
電子制御装置を専用通信線により接続し、これを通じて
室内機と室外機の情報を交換していた。2. Description of the Related Art Conventional communication means connects an electronic control unit of an indoor unit and an electronic control unit of an outdoor unit by a dedicated communication line, and exchanges information between the indoor unit and the outdoor unit through this.
発明が解決しようとする課題 従来、セパレート型空気調和機の設置工事を行う場
合、室内機と室外機間の接続は電力線及び専用通信線各
２本合計４本のケーブルが必要であり接続工事に多くの
時間を要していた。また、通信は直流低電圧信号で行わ
れており、専用通信線の極性を間違えたり、電力線と専
用通信線の接続を間違えたり、空気調和機内部から発生
する電気的ノイズ、外部から及び外部への電気的ノイ
ズ、及び外部からの雷等の侵入により通信不能に陥った
り、電子制御装置が破壊するなどの不具合があった。以
下従来例について図面とともに説明する。第６図は従来
例におけるセパレート型空気調和機の制御装置のブロッ
ク結線図である。同図に於て、１は電源プラグ、２はセ
パレート型空気調和機の室内機、３はセパレート型空気
調和機の室外機である。4a,4bは前記室内機２と室外機
３間に接続される電力線、5a,5bは前記室内機２と室外
機３間に接続される通信線である。６は室内側電子制御
装置、11は室外側電子制御装置、７はサージ吸収回路、
８はノイズフィルタ回路、９は周波数変換装置、10は圧
縮機である。商用電源は、電力線4a,4bを介して室外機
３に供給される。室内側電子制御装置６と室外側電子制
御装置11間の通信は、通信線4a,4bを介して行なわれ
る。そのため設置工事を行なう場合、室内機２と室外機
３間の接続は電力線及び専用通信線各２本合計４本のケ
ーブルが必要であり接続工事に多くの時間を要し、また
通信は直流低電圧信号で行なわれているため、専用通信
線の極性を間違えたり或は電力線と専用通信線を間違え
て接続すると通信不能に陥ったり、電子制御装置が破壊
するなどの不具合がある。本発明は、上記従来の課題を
解決するもので、電力線と通信線の共用により設置工事
時間の短縮及び誤接続による不具合の発生を防止するこ
とを目的とする。Problems to be Solved by the Invention Conventionally, when installing a separate type air conditioner, connection between the indoor unit and the outdoor unit requires a total of four cables each of two power lines and a dedicated communication line. It took a lot of time. In addition, communication is performed using a DC low voltage signal, and the polarity of the dedicated communication line is incorrect, the connection between the power line and the dedicated communication line is incorrect, electrical noise generated inside the air conditioner, from the outside and to the outside. There were problems such as communication failure due to the electrical noise of the device and the intrusion of lightning from the outside, and the destruction of the electronic control unit. Hereinafter, a conventional example will be described with reference to the drawings. FIG. 6 is a block connection diagram of a control device for a separate type air conditioner in a conventional example. In the figure, 1 is a power plug, 2 is an indoor unit of a separate type air conditioner, and 3 is an outdoor unit of a separate type air conditioner. 4a and 4b are power lines connected between the indoor unit 2 and the outdoor unit 3, and 5a and 5b are communication lines connected between the indoor unit 2 and the outdoor unit 3. 6 is an indoor electronic control device, 11 is an outdoor electronic control device, 7 is a surge absorbing circuit,
8 is a noise filter circuit, 9 is a frequency converter, and 10 is a compressor. Commercial power is supplied to the outdoor unit 3 via the power lines 4a and 4b. Communication between the indoor electronic control device 6 and the outdoor electronic control device 11 is performed via communication lines 4a and 4b. Therefore, when performing the installation work, the connection between the indoor unit 2 and the outdoor unit 3 requires a total of four cables, two each for the power line and the dedicated communication line, and the connection work requires a lot of time, and the communication is low DC. Since the operation is performed using a voltage signal, if the polarity of the dedicated communication line is wrong, or if the power line and the dedicated communication line are connected incorrectly, communication becomes impossible or the electronic control unit is broken. An object of the present invention is to solve the above-mentioned conventional problems, and to reduce the installation work time by sharing a power line and a communication line, and to prevent a problem due to an incorrect connection.
課題を解決するための手段 この目的を達成するために本発明は、室内機に商用電
源が供給されるセパレート型空調システムにおいて、通
信信号を高周波信号に変調する変調部と、前記変調後の
高周波信号を前記室内機と室外機間に接続した電力線上
の商用電源に重畳しかつ前記商用電源に重畳された高周
波信号を選択受信する結合部と、前記高周波信号を復調
する復調部とを有する電子制御装置を、前記室内機のブ
ロッキングフィルタ部と室内外接続部との中間及び、室
外側サージ吸収回路とノイズフィルタ回路の中間に、そ
れぞれ接続し、前記結合部の同調周波数を複数段階に可
変できるような構成とした室内機および室外機相互間の
通信を行うようしたものである。さらに本発明は、受信
部入力信号の大きさを複数段階に可変できるように構成
したものである。Means for Solving the Problems In order to achieve this object, the present invention relates to a separate type air conditioning system in which commercial power is supplied to an indoor unit, wherein a modulator for modulating a communication signal into a high-frequency signal; An electronic device comprising: a coupling unit that superimposes a signal on a commercial power supply on a power line connected between the indoor unit and the outdoor unit and selectively receives a high-frequency signal superimposed on the commercial power supply; and a demodulation unit that demodulates the high-frequency signal. A control device is connected between the blocking filter unit and the indoor / outdoor connection unit of the indoor unit and between the outdoor surge absorption circuit and the noise filter circuit, respectively, so that the tuning frequency of the coupling unit can be changed in a plurality of steps. The communication between the indoor unit and the outdoor unit having such a configuration is performed. Further, the present invention is configured such that the magnitude of the input signal of the receiving section can be changed in a plurality of stages.
作用 本発明は、本構成によってセパレート型空気調和機の
設置工事を行う場合、電力線と通信線の共用が可能にな
り設置工事時間の短縮及び誤接続による不具合の発生を
防止することができる。Effect In the present invention, when the installation work of the separate type air conditioner is performed by this configuration, the power line and the communication line can be shared, so that the installation work time can be shortened and the problem due to the incorrect connection can be prevented.
実施例 以下本発明の一実施例について、図面を参照しながら
説明する。第１図は本発明の一実施例におけるセパレー
ト型空気調和機の制御装置のブロック結線図である。同
図に於て、１は電源プラグ、２はセパレート型空気調和
機の室内機、３はセパレート型空気調和機の室外機であ
る。4a,4bは前記室内機２と室外機３間に接続される電
力線、６は室内側電子制御装置、11は室外側電子制御装
置、７はサージ吸収回路、８はノイズフィルタ回路、９
は周波数変換装置、10は圧縮機、11はブロッキングフィ
ルタ回路である。商用電源は、電力線4a,4bを介して室
外機３に供給される。室内側電子制御装置６と室外側電
子制御装置11間の通信も同様に電力線4a,4bを介して行
なわれる。これらの詳細について第２図及び第３図を用
いて説明する。第２図は室内側電子制御装置６のブロッ
ク結線図、第３図は第２図の各部信号波形図である。同
図に於て、21は制御部、22は変調回路、23は復調回路、
24は結合回路である。送信の場合、制御部21より出力さ
れた信号S1は、変調回路22により高周波信号S2に変換さ
れ、さらに結合回路24により電力線4a,4b上の商用電源
（図示せず）に重畳させる（S3）。一方受信の場合は、
電力線4a,4b上の商用電源に重畳された信号S3を結合回
路24により検出し（S4）、さらに復調回路23により信号
出力S5が復調され、制御部21に入力される。室外側電子
制御装置11も室内側と同様な構成となっており、相互に
データの交換ができる。これらの高周波信号は、ブロッ
キングフィルタ回路12により空気調和機側より電源側に
漏洩し他の機器に悪影響を与えないようにすると共に電
源側よりのノイズ浸入が抑制され、誤動作等が発生しな
いようになされている。第４図は、室外側結合回路及び
その周辺回路の一構成例である。同図に於て、31はサー
ジ吸収回路、32は結合回路、51はノイズフィルタ回路で
ある。室外側電子制御装置11は、サージ吸収回路31によ
り、雷等により電源ライン間及び電源アース間に印可さ
れるサージ電圧による破壊から防止することができる。
ノイズフィルタ回路51は周波数変換装置（図示せず）か
ら発生するノイズを抑制し、結合回路32が誤った信号を
受信しないようにするものである。結合回路32の同調周
波数は、スイッチ33〜35、42〜44とコンデンサ36〜38、
48〜50により複数段階に切り換えられるようになってい
る。これは、空気調和機が設置される場所により伝送路
のインピーダンスが変化し、通信不能になるのを防止す
るものである。復調回路52の入力信号のレベルは、スイ
ッチ45〜47、と抵抗48〜50によれ複数段階に切り換えら
れるようになっている。これは、空気調和機が設置され
る場所により伝送路に侵入してくるノイズのレベルが変
化し、通信が不能になるのを防止するものである。この
様子を第５図により説明する。第５図は復調回路の入力
信号の状態を示すもので、同図において、信号０の状態
におけるノイズレベルを復調回路の入力感度レベル以下
に押え、さらに信号１の入力信号を復調回路の入力感度
レベル以上に調整することにより支障なく通信を行なう
ことができる。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a control device for a separate type air conditioner according to an embodiment of the present invention. In the figure, 1 is a power plug, 2 is an indoor unit of a separate type air conditioner, and 3 is an outdoor unit of a separate type air conditioner. 4a and 4b are power lines connected between the indoor unit 2 and the outdoor unit 3, 6 is an indoor electronic control unit, 11 is an outdoor electronic control unit, 7 is a surge absorption circuit, 8 is a noise filter circuit, 9
Is a frequency converter, 10 is a compressor, and 11 is a blocking filter circuit. Commercial power is supplied to the outdoor unit 3 via the power lines 4a and 4b. Communication between the indoor electronic control unit 6 and the outdoor electronic control unit 11 is also performed via the power lines 4a and 4b. These details will be described with reference to FIG. 2 and FIG. FIG. 2 is a block connection diagram of the indoor-side electronic control device 6, and FIG. 3 is a signal waveform diagram of each part in FIG. In the figure, 21 is a control unit, 22 is a modulation circuit, 23 is a demodulation circuit,
24 is a coupling circuit. In the case of transmission, the signal S1 output from the control unit 21 is converted into a high-frequency signal S2 by the modulation circuit 22, and further superimposed on a commercial power supply (not shown) on the power lines 4a and 4b by the coupling circuit 24 (S3). . On the other hand, in the case of reception,
The signal S3 superimposed on the commercial power supply on the power lines 4a and 4b is detected by the coupling circuit 24 (S4), and the signal output S5 is demodulated by the demodulation circuit 23 and input to the control unit 21. The outdoor electronic control device 11 has the same configuration as the indoor electronic device, and can exchange data with each other. These high-frequency signals are prevented from leaking from the air conditioner side to the power supply side by the blocking filter circuit 12 so as not to adversely affect other devices and noise ingress from the power supply side is suppressed, so that malfunction does not occur. It has been done. FIG. 4 is an example of a configuration of an outdoor coupling circuit and peripheral circuits thereof. In the figure, 31 is a surge absorbing circuit, 32 is a coupling circuit, and 51 is a noise filter circuit. The outdoor electronic control device 11 can be prevented from being destroyed by the surge voltage applied between the power supply lines and between the power supply grounds due to lightning or the like by the surge absorbing circuit 31.
The noise filter circuit 51 suppresses noise generated from a frequency conversion device (not shown) and prevents the coupling circuit 32 from receiving an erroneous signal. The tuning frequency of the coupling circuit 32 is determined by switches 33 to 35, 42 to 44 and capacitors 36 to 38,
It can be switched to multiple stages by 48-50. This is to prevent the impedance of the transmission path from being changed depending on the place where the air conditioner is installed, thereby preventing communication from being disabled. The level of the input signal of the demodulation circuit 52 can be switched in a plurality of stages by switches 45 to 47 and resistors 48 to 50. This is to prevent the level of noise entering the transmission path from changing depending on the place where the air conditioner is installed, thereby preventing communication from being disabled. This will be described with reference to FIG. FIG. 5 shows the state of the input signal of the demodulation circuit. In FIG. 5, the noise level in the state of signal 0 is suppressed below the input sensitivity level of the demodulation circuit. Communication can be performed without any trouble by adjusting the level to the level or higher.
発明の効果 上記実施例より明らかなように本発明は、セパレート
型空気調和機の室内側と室外側のデータ交換を電力線上
の商用電源に重畳させて行うもので、設置工事に際し、
設置工事時間の短縮及び誤接続による不具合の発生を防
止できる効果を有するものである。Effect of the Invention As is clear from the above embodiment, the present invention is to perform data exchange between the indoor side and the outdoor side of the separate type air conditioner by superimposing it on the commercial power supply on the power line.
This has the effect of shortening the installation work time and preventing the occurrence of problems due to incorrect connection.
第１図は本発明の一実施例によるブロック結線図、第２
図は同実施例における室内側電子制御装置のブロック結
線図、第３図は第２図の各部信号波形図、第４図は同実
施例における室外側結合部回路及び周辺部の回路図、第
５図は同実施例における復調部回路の入力信号の状態
図、第６図は従来例によるブロック結線図である。 ２……室内側空気調和機、３……室外側空気調和機、4
a,4b……電力線、６……室内側電子制御装置、７……サ
ージ吸収回路、８……ノイズフィルタ回路、11……室外
側電子制御装置、12……ブロッキング回路、22……変調
回路、23……復調回路、24……結合回路。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG.
FIG. 3 is a block diagram of the indoor-side electronic control device in the embodiment, FIG. 3 is a signal waveform diagram of each part in FIG. 2, FIG. 4 is a circuit diagram of an outdoor-side coupling circuit and peripheral portions in the embodiment, FIG. 5 is a state diagram of an input signal of a demodulation unit circuit in the embodiment, and FIG. 6 is a block connection diagram according to a conventional example. 2 ... indoor air conditioner, 3 ... outdoor air conditioner, 4
a, 4b power line, 6 indoor electronic control unit, 7 surge absorbing circuit, 8 noise filter circuit, 11 outdoor electronic control unit, 12 blocking circuit, 22 modulation circuit , 23 ... demodulation circuit, 24 ... coupling circuit.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−95346（ＪＰ，Ａ) 特開 昭62−108948（ＪＰ，Ａ) 特開 昭52−138652（ＪＰ，Ａ) 実開 昭57−121842（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F24F 11/02 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-95346 (JP, A) JP-A-62-108948 (JP, A) JP-A-52-138652 (JP, A) 121842 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) F24F 11/02
Claims (2)
型空調システムにおいて、通信信号を高周波信号に変調
する変調部と、前記変調後の高周波信号を前記室内機と
室外機間に接続した電力線上の商用電源に重畳しかつ前
記商用電源に重畳された高周波信号を選択受信する結合
部と、前記高周波信号を復調する復調部とを有する電子
制御装置を、前記室内機のブロッキングフィルタ部と室
内外接続部との中間及び、室外側サージ吸収回路とノイ
ズフィルタ回路の中間に、それぞれ接続し、前記結合部
の同調周波数を複数段階に可変できるような構成とした
室内機および室外機相互間の通信を行う空気調和機の制
御装置。In a separate air-conditioning system in which commercial power is supplied to an indoor unit, a modulating unit for modulating a communication signal into a high-frequency signal, and a power connected to the modulated high-frequency signal between the indoor unit and the outdoor unit An electronic control unit having a coupling unit superimposed on a commercial power supply on a line and selectively receiving a high-frequency signal superimposed on the commercial power supply, and a demodulation unit demodulating the high-frequency signal; Between the indoor unit and the outdoor unit, which are connected to the middle of the outside connection unit and the middle of the outdoor surge absorption circuit and the noise filter circuit, respectively, and configured so that the tuning frequency of the coupling unit can be changed in a plurality of steps. An air conditioner control device that communicates.
できるよう構成した請求項１記載の空気調和機の制御装
置。2. The control device for an air conditioner according to claim 1, wherein the magnitude of the input signal of the receiving section can be varied in a plurality of stages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011376A JP2870916B2 (en) | 1990-01-19 | 1990-01-19 | Control device for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011376A JP2870916B2 (en) | 1990-01-19 | 1990-01-19 | Control device for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03213945A JPH03213945A (en) | 1991-09-19 |
| JP2870916B2 true JP2870916B2 (en) | 1999-03-17 |
Family
ID=11776297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011376A Expired - Fee Related JP2870916B2 (en) | 1990-01-19 | 1990-01-19 | Control device for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2870916B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100339547B1 (en) * | 1999-07-20 | 2002-06-03 | 구자홍 | Communication circuit for airconditioner |
| JP6442770B2 (en) * | 2015-07-01 | 2018-12-26 | 株式会社カワデン | Electric valve opening and closing control device |
| JP6607562B2 (en) * | 2015-11-20 | 2019-11-20 | 三菱重工サーマルシステムズ株式会社 | POWER PROTECTION DEVICE, AIR CONDITIONING SYSTEM INCLUDING THE SAME, AND METHOD FOR PRODUCING POWER SUPPLY PROTECTION DEVICE |
| JP6649455B2 (en) * | 2018-11-01 | 2020-02-19 | 株式会社カワデン | Motorized valve opening detection output device |
| JP7705056B2 (en) * | 2023-05-18 | 2025-07-09 | ダイキン工業株式会社 | Air conditioners |
-
1990
- 1990-01-19 JP JP2011376A patent/JP2870916B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03213945A (en) | 1991-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |