JPH0254044U

JPH0254044U -

Info

Publication number: JPH0254044U
Application number: JP13284588U
Authority: JP
Priority date: 1988-10-13
Filing date: 1988-10-13
Publication date: 1990-04-19
Also published as: JPH0412352Y2

Description

[Brief explanation of drawings]

第１図は本考案に従つて構成された特徴的な安
全回路部分を含むベースユニツトの要部回路の概
略構成図、第２図は本考案の改良対象となる遠隔
操作型燃焼装置の一例の概略構成図、第３図はリ
モートユニツト側からベースユニツトに与える通
常のデータ群やオフモード指令データ、オンモー
ド指令データの構成例の説明図、第４図は第２図
示システムにおける信号の伝送例の説明図、であ
る。図中、１０はベースユニツト、１１，２１はマ
イクロコンピユータ、１２，２２は送信回路、１
３，２３は受信回路、１４，２４は電源回路、１
６は商用交流電源、１７は燃焼給湯部、２０，２
０−ｉはリモートユニツト、２７はモーメンタリ
型の運転スイツチ、３０は電力供給線路とデータ
伝送線路を兼ねる二芯配線路、４０はデータの転
送停止検出回路、４１はフアンモータ、４２は電
磁弁、４３，４４はリレー、４５，４６はスイツ
チングトランジスタ、４７，４８はリレー接点、
Ｓｄは転送停止検出信号、である。 Fig. 1 is a schematic configuration diagram of the main circuit of the base unit including the characteristic safety circuit part configured according to the present invention, and Fig. 2 is an example of a remote-controlled combustion device that is the subject of improvement of the present invention. A schematic configuration diagram, Figure 3 is an explanatory diagram of a configuration example of a normal data group, off mode command data, and on mode command data given from the remote unit side to the base unit, and Figure 4 is an example of signal transmission in the system shown in Figure 2. This is an explanatory diagram. In the figure, 10 is a base unit, 11 and 21 are microcomputers, 12 and 22 are transmitting circuits, and 1
3 and 23 are receiving circuits, 14 and 24 are power supply circuits, 1
6 is a commercial AC power supply, 17 is a combustion hot water supply unit, 20, 2
0-i is a remote unit, 27 is a momentary type operation switch, 30 is a two-core wiring line that serves as both a power supply line and a data transmission line, 40 is a data transfer stop detection circuit, 41 is a fan motor, 42 is a solenoid valve, 43 and 44 are relays, 45 and 46 are switching transistors, 47 and 48 are relay contacts,
Sd is a transfer stop detection signal.

Claims

[Claims for Utility Model Registration] The above-mentioned utility model has a base unit that directly controls a combustion section having a burner, and a remote unit connected to the base unit via a two-wire data transmission line that also serves as a power supply line. A microcomputer that creates and transmits/receives a plurality of data groups related to various controls to be carried on the data transmission line is built into each of the base unit and the remote unit, and the microcomputer built into the base unit is connected to the remote unit. When it receives on-mode command data, it goes into on-mode and performs control operations according to the above data, while when it receives off-mode command data from the remote unit, it goes into off-mode and executes the on-mode command again. Until the data is received, the combustion control operation based on the data is stopped, and data is periodically transferred between the remote unit and the base unit when the base unit is in the on mode, and the base unit is in the off mode. a remotely controlled combustion device configured to stop the transfer of data at certain times; a solenoid valve for closing a fuel supply path to the combustion section when no power is being supplied to the power source; Connected via the drive relay contact of the fan motor involved in the combustion; Transfer stop detection that monitors the data transmission line and detects when the periodic data transfer via the line stops; Further, a switching circuit is provided which, independently of the microcomputer, forcibly turns off the fan motor drive relay contact when the transfer stop detection signal issued by the transfer stop detection circuit is received. A remote-controlled combustion device characterized by;