JPH0779510B2 - Water heater - Google Patents

Water heater

Info

Publication number
JPH0779510B2
JPH0779510B2 JP2243288A JP2243288A JPH0779510B2 JP H0779510 B2 JPH0779510 B2 JP H0779510B2 JP 2243288 A JP2243288 A JP 2243288A JP 2243288 A JP2243288 A JP 2243288A JP H0779510 B2 JPH0779510 B2 JP H0779510B2
Authority
JP
Japan
Prior art keywords
water heater
remote controller
current
display
voltage
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 - Lifetime
Application number
JP2243288A
Other languages
Japanese (ja)
Other versions
JPH01196448A (en
Inventor
昇三 加藤
卓幸 矢島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP2243288A priority Critical patent/JPH0779510B2/en
Publication of JPH01196448A publication Critical patent/JPH01196448A/en
Publication of JPH0779510B2 publication Critical patent/JPH0779510B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は遠隔操作器を備えた家庭用給湯機等の給湯装置
に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a hot water supply device such as a domestic hot water supply device equipped with a remote controller.

(ロ)従来の技術 例えば実開昭57−195548号公報には、給湯機(燃焼機
部)と表示器を備えた遠隔操作器(リモコン部)とを一
対の伝送線で結線し、給湯機に電圧検出器を設け、給湯
機の制御回路を遠隔操作器の電圧変化により制御すると
共に、給湯機の運転時には表示器に通電して、運転を表
示する給湯装置が開示されている。
(B) Conventional technology For example, in Japanese Utility Model Laid-Open No. 57-195548, a water heater (combustor section) and a remote controller (remote control section) equipped with a display are connected by a pair of transmission lines. There is disclosed a hot water supply device in which a voltage detector is provided to control a control circuit of the hot water supply device by a voltage change of a remote controller, and a display is energized when the hot water supply device is in operation to display the operation.

(ハ)発明が解決しようとする課題 上記従来の技術において、表示器が1個のため、遠隔操
作器の表示器には給湯機の運転状態のみが表示され、
又、使用者は給湯機の温度調節以外の調節を遠隔操作器
にて行うことができなかった。さらに遠隔操作器を備え
た従来の給湯装置において、給湯機から遠隔操作器に常
に定電流を供給し、遠隔操作器での電圧変化を制御回路
で検出して温度制御等を行っていたため、給湯機側に定
電流発生回路が必要になり、制御回路が複雑になり部品
コストの上昇を招いていた。
(C) Problem to be Solved by the Invention In the above-mentioned conventional technique, since there is only one display, only the operating state of the water heater is displayed on the display of the remote controller.
In addition, the user was not able to perform any control other than the temperature control of the water heater with the remote controller. Furthermore, in a conventional hot water supply device equipped with a remote controller, a constant current is constantly supplied from the water heater to the remote controller, and the control circuit detects the voltage change in the remote controller to control the temperature. A constant current generating circuit is required on the machine side, which complicates the control circuit and causes an increase in component cost.

本発明は、遠隔操作器を備えた給湯装置の部品コストの
低減を図り、且つ、遠隔操作器にて給湯機の複数の状態
を表示させると共に、給湯等の設定を行うことができ、
さらに、制御精度の向上を図った給湯装置を提供するこ
とを目的とする。
INDUSTRIAL APPLICABILITY The present invention aims to reduce the cost of parts of a hot water supply device equipped with a remote controller, and allows the remote controller to display a plurality of states of the water heater, and to set hot water and the like.
Another object of the present invention is to provide a hot water supply device with improved control accuracy.

(ニ)課題を解決するための手段 本発明は上記課題を解決するために、給湯機制御手段
(7)を備えた給湯機(1)と、設定器(24),(28)
及び設定器(24),(28)に並列接続された複数の表示
器(33),(34)を備えた遠隔操作器(6)と、給湯機
(1)と遠隔操作器(6)とを結線する一対の伝送線
(8),(9)とを備えた給湯装置において、それぞれ
の表示器(33),(34)を直列接続すると共に、給湯機
(1)から伝送線(8),(9)を介して遠隔操作器
(6)に供給される電圧の変化に応じて開閉するスイッ
チング素子(35)を表示器(34)と並列に接続した給湯
装置を提供するものである。
(D) Means for Solving the Problems In order to solve the above problems, the present invention relates to a water heater (1) equipped with a water heater control means (7), and setting devices (24), (28).
And a remote controller (6) having a plurality of indicators (33) and (34) connected in parallel to the setters (24) and (28), a water heater (1) and a remote controller (6). In a hot water supply device provided with a pair of transmission lines (8) and (9) for connecting between, the respective indicators (33) and (34) are connected in series, and the water heater (1) to the transmission line (8) , (9) are connected to a display device (34) in parallel with a switching element (35) that opens and closes according to a change in voltage supplied to a remote controller (6).

又、給湯機制御手段(7)を備えた給湯機(1)と、設
定器(24),(28)及び設定器(24),(28)に並列接
続された複数の表示器(33),(34)を備えた遠隔操作
器(6)と、給湯機(1)と遠隔操作器(6)とを結線
する一対の伝送線(8),(9)とを備えた給湯装置に
おいて、給湯機(1)から伝送線(8),(9)を介し
て遠隔操作器(6)に供給される電圧の変化に応じて動
作するスイッチング素子(38)と表示器(34)との直列
回路と、定電流素子(39)と表示器(33)との直列回路
とを設定器(28)と並列に設けた給湯装置を提供するも
のである。
Further, the water heater (1) provided with the water heater control means (7), the setting devices (24) and (28), and the plurality of display devices (33) connected in parallel to the setting devices (24) and (28). , (34) and a pair of transmission lines (8), (9) for connecting the water heater (1) and the remote controller (6), A series of a switching element (38) and a display (34) that operate according to a change in the voltage supplied from the water heater (1) to the remote controller (6) via the transmission lines (8) and (9). The present invention provides a hot water supply device in which a circuit and a series circuit of a constant current element (39) and a display (33) are provided in parallel with a setting device (28).

(ホ)作用 遠隔操作器(6)に供給される電圧の変化に応じてスイ
ッチング素子(35)を動作させ、表示器(34)への通電
を制御しているため、給湯機(1)に定電流発生回路を
設ける必要がなく、給湯機(1)の回路構成の簡略化、
及び給湯装置の部品コストの低減が可能になる。又、表
示器(33),(34)の点灯により給湯機の異なった運転
状態の確認が可能になる。さらに、表示器(33),(3
4)が直列接続され、表示器(33),(34)が同時に点
灯したときに表示器(33),(34)に流れる表示電流は
表示器(33)のみが点灯したときと略同じなため、設定
器(28)に流れる信号電流に対する表示電流の比率を小
さくすることができ、信号対雑電流比を改善して制御精
度の向上が可能になる。
(E) Action Since the switching element (35) is operated according to the change in the voltage supplied to the remote controller (6) to control the power supply to the display (34), the hot water supply device (1) is operated. It is not necessary to provide a constant current generating circuit, and the circuit configuration of the water heater (1) is simplified.
Also, the cost of parts of the hot water supply device can be reduced. Further, by lighting the indicators (33) and (34), it is possible to confirm different operating states of the water heater. In addition, indicators (33), (3
When 4) are connected in series and the indicators (33) and (34) light up at the same time, the display current flowing through the indicators (33) and (34) is almost the same as when only the display (33) lights up. Therefore, it is possible to reduce the ratio of the display current to the signal current flowing through the setting device (28), improve the signal-to-noise current ratio, and improve control accuracy.

又、スイッチング素子(38)と表示器(34)との直列回
路と、定電流素子(39)と表示器(33)との直列回路と
を並列に接続し、給湯機(1)から遠隔操作器(6)に
供給される電圧の変化により表示器(33)を点灯させる
と共に、スイッチング素子(38)の動作に基づいて表示
器(34)の点灯を制御しているため、表示器(33),
(34)の点灯により給湯機の異なった運転状態の確認が
可能になり、又、給湯機(1)に定電流発生回路等を設
ける必要がなく、回路構成の簡略化、及び部品コストの
低減が可能になる。又、遠隔操作器(6)へ供給される
電圧が高くなったとき、定電流素子(39)により表示器
(33)に流れる表示電流が低く抑えられるため、設定器
(28)に流れる信号電流に対する表示電流の比率を小さ
くすことができ、信号対雑電流比を改善して制御精度の
向上が可能になる。
In addition, a series circuit of the switching element (38) and the display (34) and a series circuit of the constant current element (39) and the display (33) are connected in parallel to allow remote control from the water heater (1). The display (33) is turned on by the change in the voltage supplied to the display (6), and the lighting of the display (34) is controlled based on the operation of the switching element (38). ),
The lighting of (34) makes it possible to check the different operating states of the water heater, and there is no need to provide a constant current generating circuit or the like in the water heater (1), simplifying the circuit configuration and reducing component costs. Will be possible. Further, when the voltage supplied to the remote controller (6) becomes high, the constant current element (39) suppresses the display current flowing to the display (33) to a low level, so that the signal current flowing to the setting device (28). It is possible to reduce the ratio of the display current to the display current, improve the signal-to-noise current ratio, and improve the control accuracy.

(ヘ)実施例 以下本発明の一実施例を図面に基づいて詳細に説明す
る。
(F) Embodiment One embodiment of the present invention will be described in detail below with reference to the drawings.

第2図において、(1)は屋外に設置され暖房に使用さ
れる給湯機、(2)は室内に設置された温風暖房機であ
り、給湯機(1)と暖房機(2)との間にはポンプ
(P)を有した注き管(3)と復管(4)とが接続され
ている。又、(5)は給湯機(1)に収容された電装ボ
ックス、(6)は例えば浴室内に設けられた遠隔操作器
(以下リモコンという)であり、電装ボックス(5)内
には給湯機制御回路(給湯機制御手段)(7)が設けら
れている。さらに、(8),(9)は電装ボックス
(5)とリモコン(6)との間に接続された一対の伝送
線である。
In FIG. 2, (1) is a water heater installed outdoors and used for heating, and (2) is a warm air heater installed indoors, and is composed of a water heater (1) and a heater (2). A pouring pipe (3) having a pump (P) and a return pipe (4) are connected between them. Further, (5) is an electric equipment box housed in the water heater (1), (6) is a remote controller (hereinafter referred to as a remote controller) provided in a bathroom, for example. A control circuit (water heater control means) (7) is provided. Further, (8) and (9) are a pair of transmission lines connected between the electrical equipment box (5) and the remote controller (6).

第1図は上記給湯装置の概略回路図であり、第1図と同
じものは同符号が付してある。(11),(12)は制御回
路(7)の第1,第2出力端子(A),(B)にそれぞれ
接続された第1,第2抵抗、(13),(14)はそれぞれ直
流電源(15)に接続された第1,第2電源ライン、(16)
は第3抵抗、(17)は給電用トラジスタ、(18)は電流
検出用抵抗である。ここで、制御回路(7)の入力端子
(T)が給湯用トランジスタ(17)と電流検出用抵抗
(18)との間に接続されている。(21),(22)は伝送
線(8),(9)にそれぞれ接続された第3,第4電源ラ
インであり、第3電源ライン(21)には運転スイッチ
(S)が設けられている。又、第3,第4電源ライン(2
1),(22)間にはポンプ流量設定用可変抵抗器(以下
第1設定器という)(24)とスイッチングトラジスタ等
の常閉の第1スイッチング素子(25)との直列回路、定
電圧ダイオード(26)と抵抗(27)との直列回路、温度
設定用可変抵抗器(以下第2設定器という)(28)とト
ランジスタ等の第2スイッチング素子(31)との直列回
路、及び電流制限素子としての電流制限抵抗(2)と運
転ランプ(表示器)(33)と燃焼表示ランプ(表示器)
(34)との直列回路が接続され、燃料表示ランプ(34)
に並列にスイッチングトランジスタ等の常閉の第3スイ
ッチング素子(35)が接続されている。
FIG. 1 is a schematic circuit diagram of the hot water supply device, and the same components as those in FIG. 1 are designated by the same reference numerals. (11) and (12) are first and second resistors respectively connected to the first and second output terminals (A) and (B) of the control circuit (7), and (13) and (14) are direct currents, respectively. First and second power supply lines connected to the power supply (15), (16)
Is a third resistor, (17) is a power feeding transistor, and (18) is a current detecting resistor. Here, the input terminal (T) of the control circuit (7) is connected between the hot water supply transistor (17) and the current detection resistor (18). (21) and (22) are the third and fourth power supply lines connected to the transmission lines (8) and (9), respectively, and the operation switch (S) is provided in the third power supply line (21). There is. Also, the third and fourth power lines (2
Between 1) and (22), a series circuit of a variable resistor for pump flow rate setting (hereinafter referred to as the first setting device) (24) and a normally closed first switching element (25) such as a switching transistor, a constant voltage. A series circuit of a diode (26) and a resistor (27), a series circuit of a temperature setting variable resistor (hereinafter referred to as a second setting device) (28) and a second switching element (31) such as a transistor, and a current limit Current limiting resistance (2) as element, operation lamp (indicator) (33) and combustion indicator lamp (indicator)
Fuel indicator lamp (34) connected in series with (34)
A third normally-closed switching element (35) such as a switching transistor is connected in parallel with the.

以下上記給湯装置の回路動作について説明する。給湯機
の制御回路(7)に通電され、第1,第2出力端子
(A),(B)がそれぞれ低レベル信号(以下L信号と
いう)、及び高レベル信号(以下H信号という)を出力
している場合にも、リモコン(6)の運転スイッチ
(S)がオフのときには、リモコン(6)に電流が流れ
ない。このため、給湯機側の抵抗(18)にも電流が流れ
ず、入力端子(T)の入力電圧が0であり、制御回路
(7)が動作せず給湯機(1)は運転を開始しない。こ
こで、使用者が運転スイッチ(S)をオにすると、第1
トランジスタ(17)がオンすると共に、第3抵抗(16)
の両端子間電圧が第3,第4電源ライン(21),(22)間
に印加される。このとき、上記のように第1,第2出力端
子(A),(B)の出力がそれぞれL信号、及びH信号
で、第3抵抗(16)の端子間電圧が低い場合には、第3,
第4電源ライン(21),(22)間に印加される電圧が低
いため、低電圧ダイオード(26)はオンしない。このた
め、第2のスイッチング素子(31)がオフであり、第1,
第3スイッチング素子(25),(35)がオンで、第1設
定器(24)、及び運転ランプ(33)に通電される。そし
て、運転ランプ(33)が点灯する。尚、第3スイッチン
グ素子(35)のオンにより燃焼表示ランプ(34)には通
電されず、燃焼表示ランプ(34)は点灯しない。又、リ
モコン(6)から伝送線(9)、及び第1トラジスタ
(17)を介して第4抵抗(18)に第1設定器(24)の抵
抗値に応じた流量制御信号としての電流が流れ、第4抵
抗(18)の端子間電圧に応じた電圧が入力端子(T)に
印加される。すると、制御回路(7)が動作し、給湯機
(1)が運転開始動作に入ると共に、ポンプ(P)が運
転を開始し、設定流量の水が循環を開始する。給湯機
(1)が燃焼を開始するとこの燃焼を検出して制御回路
(7)が動作し、第2出力端子(A)がH信号に替わり
L信号を出力する。このため、第3抵抗(16)の端子間
電圧が上昇し、第3,第4電源ライン(21),(22)間に
印加される電圧が上昇する。そして、定電圧ダイオード
(26)がオし、第2スイッチング素子(31)のベース電
位が高くなり、第2スイッチング素子がオンする。する
と、第2設定器(28)に電流が流れ、又、第1,第3スイ
ッチング素子(25),(35)がオフする。このため、第
1設定器(24)が非通電になる一方、燃焼表示ランプ
(34)が通電され点灯する。そして、第2設定器(31)
の設定値に応じた温度設定信号としての電流が伝送線
(9)を介して第4抵抗(18)に流れ、第4抵抗(18)
の端子間電圧が入力端子(T)に印加される。すると、
制御回路(7)が入力した電圧に応じて動作し、給湯機
(1)の燃焼機(図示せず)の燃焼量が制御され、暖房
機(2)に供給される湯温が略設定温度になるように制
御される。以後、制御回路(7)の第2出力端子(B)
がH信号とL信号とを極く短いサイクル(例えば数100H
z)にて交互に出力し、第1出力端子(A)がL信号を
継続して出力する。そして、第2出力端子(B)の出力
が切換わる毎に、制御回路(7)の入力端子(T)に入
力される電圧がポンプ流量又は温水温度の設定値に応じ
て変化し、その電圧に応じて制御回路(7)が動作し、
ポンプ(P)の運転、及び燃焼機の運転が制御され、給
湯量、及び温水温度が略設定温度に保たれる。又、第2
出力端子(B)の出力の切換サイクルが極く短いため、
使用者からは燃焼表示ランプ(34)が継続して点灯して
いるように見える。
The circuit operation of the water heater will be described below. The control circuit (7) of the water heater is energized, and the first and second output terminals (A) and (B) output a low level signal (hereinafter referred to as L signal) and a high level signal (hereinafter referred to as H signal), respectively. Even when the remote control (6) is operating, no current flows through the remote control (6) when the operation switch (S) of the remote control (6) is off. Therefore, no current flows through the resistor (18) on the water heater side, the input voltage of the input terminal (T) is 0, the control circuit (7) does not operate, and the water heater (1) does not start operation. . Here, when the user turns on the driving switch (S), the first
When the transistor (17) turns on, the third resistor (16)
The voltage between the two terminals is applied between the third and fourth power supply lines (21) and (22). At this time, as described above, when the outputs of the first and second output terminals (A) and (B) are the L signal and the H signal, respectively, and the terminal voltage of the third resistor (16) is low, 3,
Since the voltage applied between the fourth power supply lines (21) and (22) is low, the low voltage diode (26) does not turn on. Therefore, the second switching element (31) is off,
The third switching elements (25) and (35) are turned on, and the first setting device (24) and the operation lamp (33) are energized. Then, the operation lamp (33) is turned on. Note that the combustion display lamp (34) is not energized by turning on the third switching element (35), and the combustion display lamp (34) does not light. Further, a current as a flow rate control signal corresponding to the resistance value of the first setting device (24) is supplied from the remote controller (6) to the fourth resistance (18) via the transmission line (9) and the first transistor (17). Then, a voltage corresponding to the inter-terminal voltage of the fourth resistor (18) is applied to the input terminal (T). Then, the control circuit (7) operates, the water heater (1) enters the operation start operation, the pump (P) starts the operation, and the set amount of water starts circulating. When the water heater (1) starts combustion, the control circuit (7) operates by detecting this combustion, and the second output terminal (A) outputs the L signal instead of the H signal. Therefore, the voltage across the terminals of the third resistor (16) rises, and the voltage applied between the third and fourth power supply lines (21) and (22) rises. Then, the constant voltage diode (26) is turned on, the base potential of the second switching element (31) is increased, and the second switching element is turned on. Then, a current flows through the second setting device (28), and the first and third switching elements (25), (35) are turned off. Therefore, the combustion indicator lamp (34) is energized and lights while the first setting device (24) is de-energized. And the second setting device (31)
A current as a temperature setting signal according to the set value of flows into the fourth resistor (18) through the transmission line (9), and the fourth resistor (18)
Is applied to the input terminal (T). Then,
The control circuit (7) operates according to the voltage input, the combustion amount of the combustor (not shown) of the water heater (1) is controlled, and the temperature of the hot water supplied to the heater (2) is substantially the set temperature. Controlled to be. After that, the second output terminal (B) of the control circuit (7)
Is an extremely short cycle of H signal and L signal (for example, several 100H
z), and the first output terminal (A) continuously outputs the L signal. Then, every time the output of the second output terminal (B) is switched, the voltage input to the input terminal (T) of the control circuit (7) changes according to the set value of the pump flow rate or the hot water temperature, and the voltage is changed. The control circuit (7) operates according to
The operation of the pump (P) and the operation of the combustor are controlled, and the hot water supply amount and the hot water temperature are maintained at approximately the set temperature. Also, the second
Since the output switching cycle of the output terminal (B) is extremely short,
From the user's perspective, the combustion indicator lamp (34) appears to be lit continuously.

さらに、給湯機(1)に異常が発生したときには、制御
回路(7)の第1出力端子(A)がH信号とL信号とを
所定時間毎(例えば1秒)に出力すると共に、第2出力
端子(B)がH信号を継続して出力する。このため、リ
モコン(6)に所定時間毎に給電され、運転ランプ(3
3)が点滅して異常が報知される。
Furthermore, when an abnormality occurs in the water heater (1), the first output terminal (A) of the control circuit (7) outputs the H signal and the L signal at predetermined time intervals (for example, 1 second), and The output terminal (B) continuously outputs the H signal. Therefore, the remote control (6) is supplied with power every predetermined time, and the operation lamp (3
3) flashes to indicate an abnormality.

上記実施例に示した給湯装置によれば、給湯機(1)と
リモコン(6)とを一対の伝送線(8),(9)にて接
続し、給湯機(1)からリモコン(6)へ印加される電
圧を変化させ、各ランプ(33),(34)の点灯、及び第
1,第2設定器(24),(28)への通電を制御しているた
め、給湯機(1)に定電流発生回路を設ける必要がな
く、給湯機(1)の回路構成の簡略化、及び給湯装置の
部品コストの低減を図ることができる。又、運転ランプ
(33)と燃焼表示ランプ(34)とを直列に接続し、さら
に、燃焼表示ランプ(34)と並列にリモコン(6)に印
加される電圧の変化に応じて動作する第2スイッチング
素子(35)を接続したので各ランプ(33),(34)の点
灯を定電圧ダイオード(26)、及び第2スイッチング素
子(35)の動作により制御し、給湯機(1)の異なった
運転状態を確認することができ、又、燃焼表示ランプ
(34)と運転ランプ(33)とが同時に点灯したとき、流
れる電流(表示電流)は運転ランプ(33)のみの点灯の
ときと略同じなため、第2設定器(28)に流れる信号電
流に対する表示電流の比率を小さくすることができ、信
号対雑電流比を改善して制御の精度向上を図ることがで
きる。
According to the water heater of the above embodiment, the water heater (1) and the remote controller (6) are connected by the pair of transmission lines (8) and (9) so that the water heater (1) can operate the remote controller (6). The voltage applied to the lamp is changed to turn on the lamps (33) and (34), and
Since the power supply to the first and second setting devices (24) and (28) is controlled, there is no need to provide a constant current generating circuit in the water heater (1), and the circuit configuration of the water heater (1) is simplified. It is possible to reduce the cost of parts of the water heater. In addition, the operation lamp (33) and the combustion indicating lamp (34) are connected in series, and further operated in parallel with the combustion indicating lamp (34) according to the change in the voltage applied to the remote controller (6). Since the switching element (35) is connected, the lighting of each lamp (33), (34) is controlled by the operation of the constant voltage diode (26) and the second switching element (35), and the water heater (1) is different. The operating status can be confirmed, and when the combustion indicator lamp (34) and the operating lamp (33) light up at the same time, the flowing current (display current) is almost the same as when only the operating lamp (33) lights up. Therefore, the ratio of the display current to the signal current flowing through the second setting device (28) can be reduced, and the signal-to-miscellaneous current ratio can be improved to improve control accuracy.

又、リモコン(6)に設けられた第1,第2設定器(2
4),(28)の通電をそれぞれの設定器(24),(26)
に直列に設けられた第1スイッチング素子(25)、及び
第2スイッチング素子(31)のオン、オフにより制御
し、スイッチング素子(25)、及び第2スイッチング素
子(31)のオン、オフをリモコン(6)に供給される電
圧の変化に応じて行っているため、リモコン(6)内の
回路構成の簡略化を図ることができると共に、給湯機
(1)とリモコン(6)との間の信号線は伝送線
(8),(9)で済み、敗戦の簡略化も図ることができ
る。
In addition, the first and second setting devices (2
4), (28) energization of each setter (24), (26)
The first switching element (25) and the second switching element (31), which are provided in series with each other, are controlled by being turned on and off, and the switching element (25) and the second switching element (31) are turned on and off by a remote controller. Since the operation is performed according to the change in the voltage supplied to (6), the circuit configuration in the remote controller (6) can be simplified and the water heater (1) and the remote controller (6) are connected. The signal line only needs to be the transmission lines (8) and (9), and the defeat can be simplified.

尚、本発明は上記実施例に限定されるものではなく、複
数の表示器、又は複数の設定器を備えたリモコンにおい
て、表示器を直列接続すると共に、スイッチング素子に
より各表示器の点灯を制御し、又、スイッチング素子の
動作により各設定器への通電を制御することにより同様
な作用効果を得ることができる。
The present invention is not limited to the above-mentioned embodiment, and in a remote controller equipped with a plurality of display devices or a plurality of setting devices, the display devices are connected in series and the lighting of each display device is controlled by a switching element. However, the same effect can be obtained by controlling the energization of each setting device by the operation of the switching element.

又、第3図は本発明に関する他のリモコンを示したもの
であり、第2図と同符号が付してあるものは同じもので
あり、詳細な説明は省略する。第3図において、(37)
は電流制限抵抗、(38)はスイッチング素子としての定
電流ダイオード、(39)は定電流ダイオード(定電流素
子)である。
Further, FIG. 3 shows another remote controller according to the present invention, and those denoted by the same reference numerals as those in FIG. 2 are the same and their detailed description is omitted. In Figure 3, (37)
Is a current limiting resistor, (38) is a constant current diode as a switching element, and (39) is a constant current diode (constant current element).

以下第3図に示したリモコンの動作について説明する。
使用者が運転スイッチ(S)をオンにすると、給湯機か
ら第3,第4電源ライン(21),(22)間に低電圧が印加
され、第2設定器(28)に通電されると共に、定電流ダ
イオード(39)を介して運転ランプ(33)の点灯に必要
な電流が運転ランプ(33)に流れ、運転ランプ(33)が
点灯する。ここで、第2設定器(28)と運転ランプ(3
3)とを介してリモコン(6)から給湯機へ電流が流れ
るが、温水の温度制御は始まらない。
The operation of the remote controller shown in FIG. 3 will be described below.
When the user turns on the operation switch (S), a low voltage is applied between the third and fourth power supply lines (21) and (22) from the water heater, and the second setting device (28) is energized. , The current required for lighting the operation lamp (33) flows through the constant current diode (39) to the operation lamp (33), and the operation lamp (33) is turned on. Here, the second setter (28) and the operation lamp (3
Current flows from the remote controller (6) to the water heater via (3) and, but the temperature control of hot water does not start.

給湯機が燃焼を開始すると、給湯機から第3,第4電源ラ
イン(21),(22)間に印加される電圧が上昇する。そ
して、定電圧ダイオード(38)がオンし、燃焼表示ラン
プ(34)あ通電して点灯する。又、運転ランプ(33)に
は定電流ダイオード(39)を介して上記と同様な電流が
流れ、運転ランプ(33)は点灯を継続する。さらに、第
2設定器(28)に印加される電圧も高くなり、流れる電
流も大きくなる。そして、燃焼開始前より大きくなった
温度設定信号としての電流が伝送線(9)を介して給湯
機へ流れる。そして、給湯機が温度設定信号として入力
した電流に基づいて動作し、暖房機に供給される温水温
度が略設定温度に保たれる。
When the water heater starts combustion, the voltage applied from the water heater to the third and fourth power supply lines (21) and (22) increases. Then, the constant voltage diode (38) is turned on, and the combustion display lamp (34) is energized and lit. Further, the same current as described above flows through the operation lamp (33) through the constant current diode (39), and the operation lamp (33) continues to light. Furthermore, the voltage applied to the second setting device (28) also increases, and the flowing current also increases. Then, a current as a temperature setting signal, which has become larger than that before the start of combustion, flows to the water heater via the transmission line (9). Then, the water heater operates based on the current input as the temperature setting signal, and the temperature of the hot water supplied to the heater is maintained at the substantially set temperature.

上記、第3図に示したリモコンを備えた給湯装置によれ
ば、燃焼開始後のリモコン(6)に印加される電圧が高
くなったときにも、定電流ダイオード(39)により運転
ランプ(33)に流れる電流(表示電流)が低く抑えられ
るため、第2設定器(28)に流れる信号電流に対する表
示電流の比率を小さくすることができ、信号対雑電流比
をさらに改善して制御の精度向上を図ることができる。
又、第1図に示した給湯装置の概略制御回路と同様に回
路構成の簡略化、及び部品コストの低減を図ることがで
きる。
According to the hot water supply apparatus having the remote controller shown in FIG. 3, the constant current diode (39) causes the operation lamp (33) to operate even when the voltage applied to the remote controller (6) after combustion has increased. ), The current (display current) flowing in () is suppressed to a low level, so that the ratio of the display current to the signal current flowing in the second setting device (28) can be reduced, and the signal-to-interference current ratio is further improved to improve control accuracy. It is possible to improve.
Further, like the schematic control circuit of the hot water supply device shown in FIG. 1, the circuit configuration can be simplified and the cost of parts can be reduced.

(ト)発明の効果 本発明は以上のように構成された給湯装置であり、給湯
機と遠隔操作器とを一対の伝送線にて接続し、さらに、
複数の表示器を直列に接続して給湯機から遠隔操作器に
印加される電圧又は電流を変化させ、スイッチング素子
を動作させて各表示器の点灯を制御しているため、給湯
機側に定電流発生回路を従来のように設ける必要がな
く、給湯機側回路の簡略化を図ると共に部品コストの低
減を図ることができ、又、各表示器の点灯により給湯機
の複数の運転状態を確認することができ、総ての表示器
が点灯したときの各表示器に流れる電流を各表示器1個
のみの点灯のときと略等しくすることができ、設定器に
流れる信号電流に対する表示電流の比率を少なくして信
号対雑電流比を改善して温度制御等の精度向上を図るこ
とができる。
(G) Effect of the Invention The present invention is a water heater configured as described above, in which the water heater and the remote controller are connected by a pair of transmission lines.
Since a plurality of indicators are connected in series to change the voltage or current applied from the water heater to the remote controller and the switching elements are operated to control the lighting of each indicator, it is not possible to set it on the water heater side. There is no need to provide a current generation circuit as in the conventional system, the circuit on the water heater side can be simplified and the cost of parts can be reduced, and multiple operating states of the water heater can be confirmed by lighting each indicator. The current flowing through each indicator when all the indicators are lit can be made substantially equal to that when only one indicator is lit, and the display current of the display current with respect to the signal current flowing through the setter can be It is possible to reduce the ratio and improve the signal-to-noise current ratio to improve the accuracy of temperature control and the like.

又、遠隔操作器に設定器を設けると共に、設定器と並列
にスイッチング素子と表示器との直列回路と、定電流素
子と表示器との直列回路とを設け、各表示器への通電
時、定電流素子に直列接続された表示器に流れる電流が
定電流素子により低く抑えられるため、設定器に流れる
信号電流に対する表示器に流れる電流の比率を小さくす
ることができ、この結果、信号対雑電流比を改善して制
御の精度向上を図ることができる。さらに、給湯機から
遠隔操作器に供給される電圧又は電流の変化に応じてス
イッチング素子を動作させ表示器の通電を制御している
ため、給湯機制御手段に定電流回路を設ける必要がな
く、回路構成の簡略化、及び部品コストの低減を図るこ
とができる。
Further, a setting device is provided in the remote controller, and a series circuit of a switching element and a display device and a series circuit of a constant current device and a display device are provided in parallel with the setting device, and when each display device is energized, Since the current flowing through the display connected in series with the constant current element is suppressed to a low level by the constant current element, the ratio of the current flowing through the display to the signal current flowing through the setting device can be reduced. It is possible to improve the control accuracy by improving the current ratio. Furthermore, since the switching element is operated to control the energization of the display according to the change in the voltage or current supplied from the water heater to the remote controller, there is no need to provide a constant current circuit in the water heater controller. It is possible to simplify the circuit configuration and reduce the component cost.

【図面の簡単な説明】[Brief description of drawings]

第1図乃至第3図は本発明の実施例を示したものであ
り、第1図は給湯装置の概略制御回路図、第2図は給湯
装置の概略構成図、第3図は遠隔操作器の他の一例を示
す概略回路図である。 (1)……給湯機、(6)……リモコン(遠隔操作
器)、(7)……制御回路(給湯機制御手段)、
(8),(9)……伝送線、(24),(28)……第1,第
2設定器、(25),(31),(35)……第1,第2,第3ス
イッチング素子、(33)……運転ランプ(表示器)、
(34)……燃焼表示ランプ(表示器)、(38)……定電
圧ダイオード(スイッチング素子)、(39)……定電流
ダイオード(定電流素子)。
1 to 3 show an embodiment of the present invention. FIG. 1 is a schematic control circuit diagram of a water heater, FIG. 2 is a schematic configuration diagram of the water heater, and FIG. 3 is a remote controller. It is a schematic circuit diagram which shows another example. (1) ... water heater, (6) ... remote controller (remote controller), (7) ... control circuit (water heater control means),
(8), (9) ... Transmission line, (24), (28) ... First and second setting device, (25), (31), (35) ... First, second, third Switching element, (33) …… Operation lamp (display),
(34) …… Combustion indicator lamp (indicator), (38) …… Constant voltage diode (switching element), (39) …… Constant current diode (constant current element).

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】給湯機制御手段を備えた給湯機と、設定器
及びこの設定器に並列接続された複数の表示器を備えた
遠隔操作器と、給湯機と遠隔操作器とを結線する一対の
伝送線とを備えた給湯装置において、それぞれの表示器
を直列接続すると共に、給湯機から伝送線を介して遠隔
操作器に供給される電圧又は電流の変化に応じて開閉す
るスイッチング素子を表示器と並列に接続したことを特
徴とする給湯装置。
1. A water heater having a water heater control means, a remote controller having a setting device and a plurality of indicators connected in parallel to the setting device, and a pair for connecting the water heater and the remote controller. In a hot water supply device with a transmission line, each display device is connected in series, and a switching element that opens and closes according to the change in the voltage or current supplied from the water heater to the remote controller via the transmission line is displayed. A hot water supply device characterized by being connected in parallel with a water heater.
【請求項2】給湯機制御手段を備えた給湯機と、設定器
及びこの設定器に並列接続された複数の表示器を備えた
遠隔操作器と、給湯機と遠隔操作器とを結線する一対の
伝送線とを備えた給湯装置において、給湯機から伝送線
を介して遠隔操作器に供給される電流又は電圧の変化に
応じて動作するスイッチング素子と表示器との直列回路
と、定電流素子と表示器との直列回路とを設定器と並列
に設けたことを特徴とする給湯装置。
2. A water heater having a water heater control means, a remote controller having a setting device and a plurality of indicators connected in parallel to the setting device, and a pair for connecting the water heater and the remote controller. In a hot water supply device including a transmission line and a series circuit of a switching element and a display, which operates according to a change in current or voltage supplied from the water heater to the remote controller through the transmission line, and a constant current element. A hot water supply device comprising a series circuit of a display and an indicator in parallel with the setter.
JP2243288A 1988-02-01 1988-02-01 Water heater Expired - Lifetime JPH0779510B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2243288A JPH0779510B2 (en) 1988-02-01 1988-02-01 Water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2243288A JPH0779510B2 (en) 1988-02-01 1988-02-01 Water heater

Publications (2)

Publication Number Publication Date
JPH01196448A JPH01196448A (en) 1989-08-08
JPH0779510B2 true JPH0779510B2 (en) 1995-08-23

Family

ID=12082533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2243288A Expired - Lifetime JPH0779510B2 (en) 1988-02-01 1988-02-01 Water heater

Country Status (1)

Country Link
JP (1) JPH0779510B2 (en)

Also Published As

Publication number Publication date
JPH01196448A (en) 1989-08-08

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