JPS598056U - Ignition devices for gas appliances, etc. - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一例を示す回路図。 １・・・・・・点火スイッチ、２・・・・・・点火回路
、３・・・・・・熱電対、７・・・・・・電源、８・・
・・・・オペアンプ、９・・・・・・フオットカプラ、
１０・・・・・・コンデンサー、４・・・・・・比較増
幅回路、５・・・・・・安全電磁弁、６・・・・・・コ
イル。FIG. 1 is a circuit diagram showing an example of the present invention. 1...Ignition switch, 2...Ignition circuit, 3...Thermocouple, 7...Power supply, 8...
... operational amplifier, 9 ... foot coupler,
10... Capacitor, 4... Comparison amplifier circuit, 5... Safety solenoid valve, 6... Coil.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 点火スイッチ１の投入とともに口火バーナ等の点火回路
２への導通と、口火バーナ等の炎の加熱により熱起電力
を発生する熱電対３とこの出力によりガス供給路に介在
させた安全電磁弁５を開弁保持するものにおいて、安全
電磁弁５を熱電対３の出力でコイルの保持電流を予かし
め設定して熱電対３の出力信号を比較増幅回路４によっ
て設定値を越えた時、点火回路２の作動を停止させるよ
うにしたことを特徴とするガス器具等の点火装置。When the ignition switch 1 is turned on, conduction is established to the ignition circuit 2 of the pilot burner, etc., and a thermocouple 3 generates a thermoelectromotive force by heating the flame of the pilot burner, etc., and a safety solenoid valve 5 interposed in the gas supply path uses the output of the thermocouple 3. In a device that holds the valve open, the safety solenoid valve 5 is set in advance to hold the coil holding current using the output of the thermocouple 3, and when the output signal of the thermocouple 3 exceeds the set value by the comparison amplifier circuit 4, the ignition circuit is activated. An ignition device for gas appliances, etc., characterized in that the operation of step 2 is stopped.