JPS6252346A - Control device for air conditioner - Google Patents
Control device for air conditionerInfo
- Publication number
- JPS6252346A JPS6252346A JP60191110A JP19111085A JPS6252346A JP S6252346 A JPS6252346 A JP S6252346A JP 60191110 A JP60191110 A JP 60191110A JP 19111085 A JP19111085 A JP 19111085A JP S6252346 A JPS6252346 A JP S6252346A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- outdoor
- indoor
- line
- power line
- 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
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、分離形空気調和機の制御装置に係り、特に
室内側と室外側の各通信制御を1本の信号線によって行
う空気調和機の制御装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a control device for a separate air conditioner, and particularly to an air conditioner that performs communication control for indoor and outdoor sides using a single signal line. The present invention relates to a control device.
第7図はこの種の従来の分離形空気調和機の制御装置を
示す回路図である。図において、1は室内側ユニットA
に取り入れられた交流電源、2#:を室外側ユニツ)B
の圧縮機3を通電させる2本の電力線で、室内側の一方
の極から室外側の他方の極へ制御信号を伝送する1本の
信号a4が接続されている05は室内側の信号線4に介
装された受信用の信号伝達素子としての7オトカプラで
、光ダイオード5a及び元トランジスタ5bから構成さ
れている。6にマイクロコンピュータ等により構成され
た通信制御回路、1は温度調節用の可変抵抗器、8は室
内呂度の検出素子、9ri通信制御回路6により駆動さ
れるリレーで、開閉スイッチ9aと連動している。10
は室外の温度を感知して作動するサーマルリードスイッ
チである。FIG. 7 is a circuit diagram showing a control device for a conventional separate type air conditioner of this type. In the figure, 1 is indoor unit A
AC power supply installed in 2#: outdoor unit) B
The two power lines that energize the compressor 3 are connected to one signal a4 that transmits a control signal from one pole on the indoor side to the other pole on the outdoor side. 05 is the signal line 4 on the indoor side. 7 optical couplers are interposed as receiving signal transmission elements, and are composed of a photodiode 5a and an original transistor 5b. 6 is a communication control circuit composed of a microcomputer or the like, 1 is a variable resistor for temperature adjustment, 8 is an indoor temperature detection element, and 9ri is a relay driven by the communication control circuit 6, which is interlocked with the open/close switch 9a. ing. 10
is a thermal reed switch that operates by sensing the outdoor temperature.
上記のように構成された分離形の空気調和機は、室内(
tillユニットAと室外側ユニットBの内外渡り線と
して最少銀の2木の゛電力線2及び1本の信号線を有し
ている。そして、通常に可変抵抗器7、i度検出素子8
などからの信号に従って通信制御回路6がリレー9を駆
動させ、圧縮機3のd電、停止を制御している。ここで
、室外@度が所定温度以上になるとスイッチ10が閉接
し、フォトカプラ5の光ダイオード5aが点灯して光ト
ランジスタ5bがONとなる0これにより、通信制御回
路6は室外温度を検知することができる。このように、
室外の情報を検知することができるが、これはリレー9
が駆動してスイッチ9aが閉となっている間に上記情報
を検知できるものであり、又その際、信号線4と通信制
御回路6とはフォトカプラ5によって絶縁されており、
通信制御回路6は高圧交流と絶縁して室外の情報を受は
取ることができる。A separate air conditioner configured as described above can be used indoors (
As an internal/external connecting wire between the till unit A and the outdoor unit B, there are a minimum of two silver power lines 2 and one signal line. Then, normally a variable resistor 7, an i degree detection element 8
The communication control circuit 6 drives the relay 9 in accordance with signals from the compressor 3, etc., and controls the d-power and stop of the compressor 3. Here, when the outdoor temperature exceeds a predetermined temperature, the switch 10 is closed, the photodiode 5a of the photocoupler 5 lights up, and the phototransistor 5b is turned on.Thus, the communication control circuit 6 detects the outdoor temperature. be able to. in this way,
Information outside the room can be detected, but this is relay 9
The above-mentioned information can be detected while the switch 9a is closed by driving, and at this time, the signal line 4 and the communication control circuit 6 are insulated by the photocoupler 5,
The communication control circuit 6 is insulated from high-voltage alternating current and can receive and receive information from outside the room.
従来の空気調和機の制御装置fは、以上のように室外側
の情報のみを室内側に送信する構成となっているため、
室内側の情報を室外側へ伝達することができず、しかも
室外温度が一定値以上であるかどうかといった単純な情
報しか通信できないという問題点があった。又、室内側
で電力線2の極性を入れ違えると(接続を反対にすると
)、通信動作が行われないという問題点があった。The conventional air conditioner control device f is configured to transmit only information from the outdoor side to the indoor side, as described above.
There was a problem in that information from the indoor side could not be transmitted to the outdoor side, and only simple information such as whether the outdoor temperature was above a certain value could be communicated. Furthermore, there is a problem in that if the polarity of the power line 2 is reversed (reversed) on the indoor side, communication cannot be performed.
この発明に、このような問題点を解消するためになされ
たもので、室内側と室外側とで双方向の通信ができると
共に、必要とする種々の情報を伝達することができ、又
電力線の極性を入れ違えても通信動作が可能な空気調和
機の制御装置を提供することを目的としている。This invention was made to solve these problems, and allows bidirectional communication between the indoor and outdoor sides, as well as transmitting various necessary information. It is an object of the present invention to provide a control device for an air conditioner that can perform communication operations even if the polarities are reversed.
圧縮機に交流電源を供給する2本の電力線と、制御信号
を伝送する1本の信号線とを室内側と室外側の内外渡り
線として用いる分離形の空気調和機において、室内側の
前記電力線の両極間に逆向きに整流素子を直列接続する
と共に、室外側の電力線の両極間にも逆向きに整流素子
を接続し、且つ室内側の整流素子の接続点と室外側の整
流素子の接続点との間に前記信号線を接続して室内側の
電力線の一方の極から室外側の電力線の他方の極へ信号
[流が流れるようにし、前記室内側の信号線に送信用及
び受信用の信号伝達素子を直列に介装すると共に、室外
側の信号線にも送信用及び受信用の信号伝達素子を直列
に介装し、且つこれらの信号伝達素子を室内側と室外側
とで各々制御する通信制御回路を備えている。In a separate air conditioner that uses two power lines that supply AC power to the compressor and one signal line that transmits control signals as an indoor/outdoor connecting wire between the indoor side and the outdoor side, the power line on the indoor side A rectifying element is connected in series in opposite directions between the two poles of the power line, and a rectifying element is also connected in the opposite direction between both poles of the power line on the outdoor side, and the connection point of the rectifying element on the indoor side and the rectifying element on the outdoor side are connected. Connect the signal line between the points so that a signal [flow] flows from one pole of the indoor power line to the other pole of the outdoor power line, and connect the indoor signal line for transmission and reception. signal transmission elements are installed in series, and signal transmission elements for transmission and reception are installed in series in the signal line on the outdoor side, and these signal transmission elements are installed on the indoor side and the outdoor side, respectively. Equipped with a communication control circuit for control.
通信制御回路に、各々の信号伝達素子を制御して信号線
を流れる交流電源からの分流電流をスイッチングされる
。これにより、室内側と室外側の双方向通信が行われ、
信号伝達素子のON 、 OFFによって複雑な情報の
伝達も可能となる。又、整流素子が対称に逆向きに接続
されているので、電力線の極性を入れ違えても通信可能
である0〔実施例〕
以下、この発明の実施例を図面について説明する。なお
、従来の第7図と同−又は相当部分についてに同一符号
を付して詳細に省略する。The communication control circuit controls each signal transmission element to switch the shunt current from the AC power supply flowing through the signal line. This allows for two-way communication between the indoor and outdoor sides.
It is also possible to transmit complex information by turning ON and OFF the signal transmission elements. Furthermore, since the rectifying elements are connected symmetrically and in opposite directions, communication is possible even if the polarities of the power lines are reversed.Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the same or equivalent parts as those in the conventional FIG. 7 are given the same reference numerals and the details are omitted.
第1図はこの発明の一実施例を示す回路図であり、従来
と同様室内11t11と室外1111の内外渡り線とし
て2本の電力線2及び1本の信号線4が設けられている
。図中、Ila、llbに室外I11の電力線20両憤
間に逆向きに接続された整流素子、12a 、 l 2
btf1室外側の′電力線2の両極間に逆向きに接続さ
れた整流素子で、交流を源1からの分流電流(信号電流
)が常に室内側の電力線2の一方の極から室外側の電力
線2の他方の極へ流れるように各々ノ整流累子11a、
If−b及び12a。FIG. 1 is a circuit diagram showing an embodiment of the present invention, in which two power lines 2 and one signal line 4 are provided as an internal/external connecting wire between the indoor 11t11 and the outdoor 1111, as in the conventional case. In the figure, rectifying elements 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12b, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, llb, 12a, lib, lib, and the power line 20 of the outdoor I11.
btf1 A rectifying element connected in opposite directions between the poles of the power line 2 on the outdoor side, so that the shunt current (signal current) from the source 1 always flows from one pole of the power line 2 on the indoor side to the power line 2 on the outdoor side. rectifier 11a, respectively, so that the flow flows to the other pole of the rectifier 11a,
If-b and 12a.
12bの各接続点に抵抗13.14を介して信号線4が
接続されている。16.16にそれぞれ室内側の信号線
4に直列に介装された送信用及び受信用の信号伝達素子
であるフォトカプラ、11゜18は室外側の信号線4に
直列に介装された送信用及び受信用の信号伝達素子であ
るフォトカプラ、19.20Uこれらのフォトカプラ1
5.16及び17.18を室:内1側と室外側とで各々
制御する通信制御回路で、マイクロコンピュータ等で構
成されている。A signal line 4 is connected to each connection point of 12b via a resistor 13.14. 16. 16 is a photocoupler which is a signal transmission element for transmitting and receiving which is connected in series with the signal line 4 on the indoor side, respectively, and 11° 18 is a photocoupler which is connected in series with the signal line 4 on the outdoor side. Photocoupler, 19.20U, which is a signal transmission element for trust and reception.These photocouplers 1
This is a communication control circuit that controls 5.16 and 17.18 on the indoor 1 side and the outdoor side, respectively, and is composed of a microcomputer, etc.
ここで、室内側ユニットAの構成を更に詳述すると、電
力線2の一方の極に整流素子(ダイオード))Iaのア
ノードを接続し、そのカソードに電流制限用抵抗13、
室内側の受信用フォトカプラ16のフォトダイオードの
アノードが順次接続され、そのカソードは同じく送信用
フォトカプラ15のフォトトランジスタのコレクターに
、エミッタは内外渡り信号線4に接続されている0そし
て、フォトカプラ16のフォトトランジスタは室内側の
例えば1チツプマイコン等の制御回路19の受信用入力
I10ポー)RXIに、フォトカプラ15のフォトダイ
オードは制御回路19の送信用出力I10ボート’L’
X Iにそれぞれ接続されている。又、通信制御回路
19は空調機のON、0FF1温度調節、冷・暖切替等
の操作入力切換スイッチ2Iとサーミスター等の室内側
空気温度検出素子8からの信号を人力している。Here, to explain the configuration of the indoor unit A in more detail, the anode of a rectifying element (diode) Ia is connected to one pole of the power line 2, and the current limiting resistor 13 is connected to the cathode of the rectifying element (diode) Ia.
The anodes of the photodiodes of the receiving photocoupler 16 on the indoor side are connected in sequence, the cathodes of which are connected to the collectors of the phototransistors of the transmitting photocoupler 15, and the emitters of the photodiodes connected to the internal and external switching signal lines 4. The phototransistor of the coupler 16 is connected to the receiving input I10 port (RXI) of the control circuit 19 such as a 1-chip microcomputer on the indoor side, and the photodiode of the photocoupler 15 is connected to the transmitting output I10 port 'L' of the control circuit 19.
are connected to XI respectively. Further, the communication control circuit 19 manually inputs signals from the operation input changeover switch 2I for turning on the air conditioner, adjusting the 0FF1 temperature, switching between cold and warm, and the indoor air temperature detecting element 8 such as a thermistor.
又、室外側ユニットBの構成は、前記内外渡り信号線4
が室外側の受信用フォトカプラ18のフォトダイオード
のアノードに接続され、そのカソードは同じく送信用フ
ォトカプラ11のフォトトランジスタのコレクタに、エ
ミッターは室外側の電流制限抵抗14を通り整流素子1
21)のアノードに、そのカソードHill記室内側で
接続ちれたのとは反対の他の一方の電力線2の極に接続
きれている。そして、7オトカプ218のフォトトラン
ジスタに室外側の通信制御回路20の受信用■10ボー
ト人力RXOに、フォトカプラ17のフォトダイオード
は同じく制御回路20の送信用I10出力ポートTXO
にそれぞれ接続でれている。Further, the configuration of the outdoor unit B is such that the above-mentioned outdoor crossover signal line 4
is connected to the anode of the photodiode of the receiving photocoupler 18 on the outdoor side, its cathode is connected to the collector of the phototransistor of the transmitting photocoupler 11, and its emitter is connected to the rectifier element 1 through the current limiting resistor 14 on the outdoor side.
The anode of 21) is connected to the other pole of the power line 2 opposite to the cathode connected to the inside of the Hill chamber. Then, the phototransistor of the 7 optical coupler 218 is used for reception of the communication control circuit 20 on the outdoor side;
are connected to each other.
又、制御回路20にインバータPWM波杉発生部22へ
接続され、さらに波形発生部22は電力整流部23を入
力とするパワートランジスタモジュール部24へ接続さ
れ、このモジュール部24によって圧縮機3が通電され
るようになっている。Further, the control circuit 20 is connected to an inverter PWM Hasugi generation section 22, and the waveform generation section 22 is further connected to a power transistor module section 24 which receives a power rectification section 23 as an input, and the compressor 3 is energized by this module section 24. It is now possible to do so.
25r1室外温度の演出素子である。又、室内1li1
1では整流素子11aと対称に、アノードを゛電力線2
に接続した整流素子11bが設けられ、室外側でげ整流
素子121)と対称に、カソードを電力m2に接続した
整流素子12aが設けられている。This is a 25r1 outdoor temperature display element. Also, indoor 1li1
1, the anode is connected to the power line 2 symmetrically with the rectifying element 11a.
A rectifying element 11b connected to the electric power m2 is provided, and a rectifying element 12a having a cathode connected to the electric power m2 is provided symmetrically to the outdoor rectifying element 121).
なお、26.27は交流電源lに同期した信号を発生す
る同期信号発生回路である。又、第2図に内外渡り線の
実際の配煉状況を示してあり、端子板28の闇に電力線
2が固定され、信号線4σその上にビス止めすn、てい
る。Note that 26 and 27 are synchronization signal generation circuits that generate signals synchronized with the AC power supply l. FIG. 2 shows the actual wiring of the internal and external connecting wires, with the power line 2 fixed to the terminal board 28 and the signal line 4a screwed onto it.
次に、動作を説明する。Next, the operation will be explained.
先ず、第1の動作として、室内側から例えばインバータ
圧縮機30回転数指令情怜を伝送する様な場合における
室内から室外への送信動作について枦、明する。通信制
両回路19に送信出力ボートTXIよりフォトカプラー
15へ送信要求信号を送る。この時室外(IJllの禮
信制御回1pr20は、受信可の場合、フォトカプラ1
8と接続されたフォトカプラ17をONさせる。これに
より電力線2の一方の極からの電frt、ri、整流素
子118.抵抗13、フォトカプラ16のダイオード、
フォトカプラ15のトランジスタ、渡り信号側12を通
り、更に室外側のフォトカプラ18のダイオード、フォ
トカプラ17のトランジスタ、整流素子12k)を通り
、電力線2の他方の極にリターンして流れる。これによ
り、室内1lllのフォトカプラ16のフォトダイオー
ドにも電流が流れて光るので、室内側の通信制御回路1
9自身が、前記送信要求信号が受は入れられたと判断し
、送信データを送信し始める。つまり、フォトカプラ1
5のトランジスタをスイッチング制御し、時分割デジタ
ル信号として情報を送信する。又、室外側においてに、
上記信号をフォトカプラ18から通信制御回路20が受
信する。この時、送信データの中に、圧縮機3の回転数
指命データのある場合にそのデータをシリアルに、又送
信を終了したい時は送信信号の終りを示すコードを入れ
送信すれば、通信制御回路20Ifi送信信号の終りを
検知可能である〇次に、第2の動作として、例えば室外
側から室外温度検知情報を送信し、室内側で受信する様
な場合の動作について説明する。First, as a first operation, a transmission operation from indoors to outdoors in a case where, for example, inverter compressor 30 rotation speed command information is transmitted from the indoor side will be explained. A transmission request signal is sent to the photocoupler 15 from the transmission output port TXI to the communication control circuit 19. At this time, outside the room (IJll's blessing control circuit 1pr20, if reception is possible, photocoupler 1
The photocoupler 17 connected to 8 is turned on. This causes electric current frt, ri from one pole of the power line 2 to be removed from the rectifying element 118 . Resistor 13, photocoupler 16 diode,
It passes through the transistor of the photocoupler 15, the transfer signal side 12, the diode of the photocoupler 18 on the outdoor side, the transistor of the photocoupler 17, and the rectifying element 12k), and returns to the other pole of the power line 2. As a result, a current flows to the photodiode of the indoor photocoupler 16 and lights up, so that the indoor communication control circuit 1
9 itself determines that the transmission request signal has been accepted and starts transmitting the transmission data. In other words, photocoupler 1
The switching control of transistor No. 5 is performed and information is transmitted as a time-division digital signal. Also, outside the room,
The communication control circuit 20 receives the signal from the photocoupler 18 . At this time, if the transmission data includes rotation speed command data for the compressor 3, the data can be sent serially, and if you want to end the transmission, include a code indicating the end of the transmission signal and send it. Circuit 20Ifi is capable of detecting the end of the transmission signal.Next, as a second operation, a description will be given of an operation in which, for example, outdoor temperature detection information is transmitted from the outside of the room and received on the inside of the room.
前記第1の動作とまったく逆に室外側からみた動作を行
なえば目的の通信は可能であるが、別な方法として、第
1の動作における室内側の通信制御回路19の送信終了
後、フォトカプラ15を連続的にONとする。つまり、
室外側の通信制御回路20の送信出力ボートTXOより
の信号でフォトカプラ11をスイッチングさせることに
より前記のループ電流が時分割送信信号として出力され
、フォトカプラI6のフォトダイオードが点滅し、通信
制御回路19がそのデータを受取ることが出来る。そし
て、これらをくり返すことにより、室内外の双方向通信
が可能となる。ここで、さらに重要な作用として、整流
素子12aが仮に誤まって、室外側の電力線2が逆に接
続されたとしても、整流素子121)のかわりに整流素
子12aを通って前記のループ電流が流れるので、内外
双方向の通信が正常に行なわれる。又、その後段のイン
バータ駆動用整流部23に何ら影響を与えることもなく
、内外通信、空調制御、圧m磯3の駆動など、正常に!
動作することに自明である。The desired communication is possible by performing an operation viewed from the outdoor side in the exact opposite direction to the first operation, but as an alternative method, after the transmission of the communication control circuit 19 on the indoor side in the first operation is completed, the photocoupler 15 is turned on continuously. In other words,
By switching the photocoupler 11 with a signal from the transmission output boat TXO of the communication control circuit 20 on the outdoor side, the loop current is output as a time-division transmission signal, the photodiode of the photocoupler I6 blinks, and the communication control circuit 19 can receive the data. By repeating these steps, two-way communication between indoors and outdoors becomes possible. Here, an even more important effect is that even if the rectifying element 12a were to be connected incorrectly and the outdoor power line 2 was connected in reverse, the loop current would flow through the rectifying element 12a instead of the rectifying element 121). Therefore, communication between the inside and outside can be carried out normally. In addition, there is no effect on the inverter drive rectifier 23 at the subsequent stage, and internal and external communication, air conditioning control, pressure miso 3 drive, etc. are normal!
It is self-evident that it works.
なお、上記の例では、通信スピードとして特別な1lt
ll限を有していないので、伝送レートは室内外の11
11信制御回路19.20がそれぞれ決めている。In the above example, the communication speed is 1lt.
Since it has no limit, the transmission rate is 11% indoors and outdoors.
The 11 signal control circuits 19 and 20 each decide.
第3図はこの発明の他の実施例を示す回路図である。こ
れは、商用を源周波数に同期させて通信を行うようにし
たものであり、商用交流電源1に同期した信号波形を室
内側の通信制御回路19に取り入れている。即ち、電力
@2より絶縁トランス29、全疲幣流子30を通して全
波整流波形を得、更にトランジスタ31でその1&流波
形を侍、商用交流同期信号源とする。第4図は第3図イ
9ロ点における波形を示したものである。このように、
室内側、室外側それぞれに商用交流電源1に同期した信
号が各通信制御回路19 、20に入力されるが、これ
らの入力はそれぞれ割込み信号入力とするのが構成上有
利と言える。動作を説明すると、第5図に示すように例
えば室内側から送信する場合、上記同期信号(口;の立
上りでフォトカプラ15のトランジスタをスイッチング
してパルスデジタル信’Wt”lを生成する。そして整
流素子118を通して商用波が上記パルス信号(−′1
に同期して室外側フォトカブラ15に同期信号波形に)
として伝わる。FIG. 3 is a circuit diagram showing another embodiment of the invention. In this system, communication is performed by synchronizing the commercial power source frequency with the source frequency, and a signal waveform synchronized with the commercial AC power source 1 is introduced into the communication control circuit 19 on the indoor side. That is, a full-wave rectified waveform is obtained from the electric power @2 through an isolation transformer 29 and a fully fatigued current flow element 30, and further, the transistor 31 uses the 1& current waveform as a commercial AC synchronizing signal source. FIG. 4 shows the waveform at points A9 and B in FIG. 3. in this way,
Signals synchronized with the commercial AC power source 1 are input to the communication control circuits 19 and 20 on the indoor side and the outdoor side, respectively, and it is advantageous in terms of the configuration that these inputs are respectively input as interrupt signals. To explain the operation, for example, when transmitting from the indoor side as shown in FIG. 5, the transistor of the photocoupler 15 is switched at the rising edge of the synchronizing signal to generate a pulsed digital signal 'Wt''l. The commercial wave passes through the rectifying element 118 and becomes the pulse signal (-'1
synchronous signal waveform to the outdoor photocoupler 15)
It is conveyed as.
この時、フォトカプラ17の信号波形に波形(ホ)とな
るような動作となる。At this time, the operation is such that the signal waveform of the photocoupler 17 has a waveform (E).
このようにして通信が行われるが、ここで整流素子11
t)ri全波双極方向で内外通信電流ループを形成させ
るのに役立つものである。Communication is performed in this way, and here the rectifying element 11
t)ri It serves to form an internal and external communication current loop in full-wave bipolar directions.
以上各実施例を説明したが、ここで第2図に示すように
、信号#Ifj4i細く、−見して他とに区別がつくが
、電力線2は一般に極性を意識することが雌しい。本実
施例では電力線2の極性を入れ違えても動作には関係な
く、従って、常識通りに配線して工事できる様にされて
いる。又、第6図に示すような最近のインバータ空調機
の場合、室外にインバータ用′亀力整流部23が用いら
れることを利用し、前記整流素子12a、12bを代用
させることが可能である。即ち、上記整流部23の内部
の整流器32のダイオードを整流素子12a。Each of the embodiments has been described above, and as shown in FIG. 2, the signal #Ifj4i is thin and can be distinguished from the others by looking at it, but it is generally recommended to be aware of the polarity of the power line 2. In this embodiment, even if the polarity of the power line 2 is reversed, it has no effect on the operation, and therefore wiring can be carried out as per common sense. Further, in the case of a recent inverter air conditioner as shown in FIG. 6, it is possible to utilize the fact that an inverter's force rectifier 23 is used outdoors and substitute the rectifier elements 12a and 12b. That is, the diode of the rectifier 32 inside the rectifying section 23 is replaced by the rectifying element 12a.
+21)の代用として使用することができ、この場合、
新たに整流素子を用いる必要もなく、低コスト化に役立
つものである。これは室内側の整流素子11a、llb
にも言えることである。+21), and in this case,
There is no need to use a new rectifying element, which helps reduce costs. This is the rectifying element 11a, llb on the indoor side.
The same can be said for
以上駁明したように、この発明によれば、室内側と室外
1111とで電力線の両極間に1!i流素子を逆向きに
対称に接続し、各々の整流素子の接続点を単一の信号線
で接続し、この信号線の途中に介装烙ぜた信号伝達素子
を室内I11と室外側とで各々制御するようにしたため
、室内側と室外側の双方向通信ができ、しかも複雑な情
報を伝送することができ、電力線の極性を考慮する必要
がないという効果があり、従って信頼性が向上し、工事
の際の作業性も向上するという効果が得られる。As clarified above, according to the present invention, 1! The i-stream elements are connected symmetrically in opposite directions, the connection points of each rectifying element are connected with a single signal line, and a signal transmission element inserted in the middle of this signal line is connected between the indoor I11 and the outdoor side. Since the power lines are controlled individually, two-way communication is possible between the indoor and outdoor sides, complex information can be transmitted, and there is no need to consider the polarity of the power line, which improves reliability. This also has the effect of improving workability during construction.
第1図はこの発明の一実施例を示す回路図、第2図は第
1図の渡り線の配線状況を示す斜視図、第3図にこの発
明の他の実施例を示す回路図、第4図は第3図の各点の
波形を示す図、第5図は商用交流電源に同期した信号を
生成する過程を説明するための波形図、第6図はインバ
ータを用いた空気調和機に適用した例を示す回路図、第
7図に従来例を示す回路図である。
1・・・・・・・・・交流電源
2・・・・・・・・・′電力線
3・・・・・・・・・圧縮機
4・・・・・・・・・信号線
I Ia、I lb、12a、12’o・・−・・整流
素子+5.16.17.18 ・・・・・・フォトカプ
ラ(信号伝達素子)
19 、20・・・・・・通信制御回路A・・・・・・
・・・室内側ユニット
B・・・・・・・・・室外1則ユニットなお、図中同一
符号は同−又は相当部分を示す。FIG. 1 is a circuit diagram showing one embodiment of the present invention, FIG. 2 is a perspective view showing the wiring situation of the crossover wire in FIG. 1, FIG. 3 is a circuit diagram showing another embodiment of the invention, and FIG. Figure 4 is a diagram showing the waveforms at each point in Figure 3, Figure 5 is a waveform diagram to explain the process of generating a signal synchronized with a commercial AC power source, and Figure 6 is a diagram showing the waveforms at each point in Figure 3. FIG. 7 is a circuit diagram showing an applied example, and FIG. 7 is a circuit diagram showing a conventional example. 1......AC power supply 2...'Power line 3...Compressor 4...Signal line I Ia , Ilb, 12a, 12'o... Rectifying element +5.16.17.18... Photocoupler (signal transmission element) 19, 20... Communication control circuit A.・・・・・・
. . . Indoor unit B . . . Outdoor one-rule unit Note that the same reference numerals in the drawings indicate the same or equivalent parts.
Claims (2)
御信号を伝送する1本の信号線とを室内側と室外側の内
外渡り線として用いる分離形の空気調和機において、室
内側の前記電力線の両極間に逆向きに整流素子を直列接
続すると共に、室外側の電力線の両極間にも逆向きに整
流素子を接続し、且つ室内側の整流素子の接続点と室外
側の整流素子の接続点との間に前記信号線を接続して室
内側の電力線の一方の極から室外側の電力線の他方の極
へ信号電流が流れるようにし、前記室内側の信号線に送
信用及び受信用の信号伝達素子を直列に介装すると共に
、室外側の信号線にも送信用及び受信用の信号伝達素子
を直列に介装し、且つこれらの信号伝達素子を室内側と
室外側とで各々制御する通信制御回路を備えたことを特
徴とする空気調和機の制御装置。(1) In a separate air conditioner that uses two power lines that supply AC power to the compressor and one signal line that transmits control signals as an indoor/outdoor connecting line between the indoor side and the outdoor side, A rectifying element is connected in series between both poles of the power line in the opposite direction, and a rectifying element is connected in the opposite direction between both poles of the power line on the outdoor side, and the connection point of the rectifying element on the indoor side and the rectifying element on the outdoor side are connected in series. The signal line is connected between the connection point of the element so that a signal current flows from one pole of the power line on the indoor side to the other pole of the power line on the outdoor side, and the signal line on the indoor side is connected for transmission and In addition to installing signal transmission elements for reception in series, signal transmission elements for transmission and reception are also installed in series in the signal line on the outdoor side, and these signal transmission elements are connected to the indoor side and outdoor side. 1. A control device for an air conditioner, comprising a communication control circuit that controls each of the air conditioners.
流電源に同期して各々の信号伝達素子を制御することを
特徴とする特許請求の範囲第1項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 communication control circuits for the indoor side and the outdoor side each control each signal transmission element in synchronization with an AC power supply.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60191110A JPS6252346A (en) | 1985-08-30 | 1985-08-30 | Control device for air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60191110A JPS6252346A (en) | 1985-08-30 | 1985-08-30 | Control device for air conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6252346A true JPS6252346A (en) | 1987-03-07 |
Family
ID=16269019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60191110A Pending JPS6252346A (en) | 1985-08-30 | 1985-08-30 | Control device for air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6252346A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0225655A (en) * | 1988-07-12 | 1990-01-29 | Mitsubishi Heavy Ind Ltd | Control signal transfer circuit for air conditioner |
JP2016161487A (en) * | 2015-03-04 | 2016-09-05 | 三菱電機株式会社 | Ac input signal detector, single-phase ac input signal detector, three-phase ac input signal detector, and ventilation blast system |
-
1985
- 1985-08-30 JP JP60191110A patent/JPS6252346A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0225655A (en) * | 1988-07-12 | 1990-01-29 | Mitsubishi Heavy Ind Ltd | Control signal transfer circuit for air conditioner |
JP2016161487A (en) * | 2015-03-04 | 2016-09-05 | 三菱電機株式会社 | Ac input signal detector, single-phase ac input signal detector, three-phase ac input signal detector, and ventilation blast system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2012039611A (en) | Power device and safe control method of the same | |
JP2002213803A (en) | Indoor-outdoor communication control device for air conditioner | |
JPS6252346A (en) | Control device for air conditioner | |
CN101267128A (en) | Switch system | |
JPH0157264B2 (en) | ||
US20120248208A1 (en) | Auxillary switch for multiplexed control and ground signal from a thermostat | |
JPH05276572A (en) | Remote controller | |
JP3195664B2 (en) | Remote control system | |
KR100329424B1 (en) | Communication device and communication method of air conditioner | |
JP2010078197A (en) | Communication device and air conditioner including the same | |
JPH0612190B2 (en) | Air conditioner signal transmission device | |
CN112460748B (en) | Communication device and method for internal and external machines and direct-current power supply variable frequency air conditioner | |
JPS5873250A (en) | Signal transmission system for air conditioner | |
US20220221187A1 (en) | Two-wire connection with component control | |
JPH11127178A (en) | Feeder for signal transmission system | |
JPS6291744A (en) | Signal transmitting device for air-conditioning machine | |
JP2519653B2 (en) | Power supply and communication method and device using one loop-connected electric wire | |
JPH0471131B2 (en) | ||
KR100192044B1 (en) | Indoor outdoor direct communicate device of airconditioner by ac electricity source wire | |
JPS6146696A (en) | Transmitting/receiving circuit | |
JP3513179B2 (en) | Controller for remote control system | |
JP3070832B2 (en) | Air conditioner data communication device | |
JPS6014301A (en) | Integrated controller | |
JPH08130777A (en) | Remote control circuit | |
JPH0221153A (en) | Interface circuit for air conditioner |