JPH0289205U

JPH0289205U -

Info

Publication number: JPH0289205U
Application number: JP16804488U
Authority: JP
Priority date: 1988-12-26
Filing date: 1988-12-26
Publication date: 1990-07-16

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例の天ぷら火災防止
装置のブロツク図、第２図はこの実施例の表示素
子の部分の回路図、第３図はこの実施例の天ぷら
火災防止装置の使用状態を示す斜視図、第４図は
この実施例の天ぷら火災防止装置の使用状態を示
す部分破断側面図である。３……赤外線センサー、５，２１……比較器、
６……ガスホース、７……電磁バルブ、８……バ
ルブ制御回路、９……電磁バルブ駆動回路、１０
……ガスレンジ、１２……鍋検出装置、１６……
電源制御回路、１７……窓、１８……赤外線透過
フイルム、２０……フオトセンサー、２２……発
光素子。 Fig. 1 is a block diagram of a tempura fire prevention device according to an embodiment of this invention, Fig. 2 is a circuit diagram of the display element portion of this embodiment, and Fig. 3 is a usage state of the tempura fire prevention device of this embodiment. FIG. 4 is a partially cutaway side view showing how the tempura fire prevention device of this embodiment is used. 3...Infrared sensor, 5,21...Comparator,
6...Gas hose, 7...Solenoid valve, 8...Valve control circuit, 9...Solenoid valve drive circuit, 10
...Gas range, 12...Pot detection device, 16...
Power control circuit, 17... window, 18... infrared transmitting film, 20... photo sensor, 22... light emitting element.

Claims

[Scope of Claim for Utility Model Registration] 1. An infrared sensor that detects infrared rays emitted from frying oil in a deep fryer placed on a gas range, and a discrimination signal obtained by comparing the output of this infrared sensor with a predetermined reference value. A valve drive device is equipped with a comparator that outputs output, and opens and closes the valve of the gas hose connected to the gas range.When it detects that the temperature of the tempura oil has reached a predetermined high temperature based on the signal from the comparator, the valve drive device It is equipped with a valve control circuit that outputs a signal to close the valve, a pot detection device that detects when a pot is placed on the gas range, and a power control circuit that enables each circuit to operate based on the signal from the pot detection device. A tempura fire prevention device characterized by: 2 In the window installed in front of the above infrared sensor,
2. The tempura fire prevention device according to claim 1, further comprising an infrared transmitting film that can be peeled off and replaced. 3. An infrared sensor that detects infrared rays emitted from frying oil in a deep fryer placed on a gas range, and a first comparator that compares the output of this infrared sensor with a predetermined reference value and outputs a discrimination signal. The valve drive device opens and closes the valve of the gas hose connected to the gas range, and when it detects that the temperature of the tempura oil has reached a predetermined high temperature based on the signal from the first comparator, the valve drive device closes the valve. a valve control circuit that outputs a signal to
A pot detection device that detects when a pot is placed on the gas range, a power control circuit that enables each circuit to operate based on the signal from the pot detection device, and a peel-off replacement on the outside of the window installed in front of the infrared sensor. An infrared transmitting film that is freely attached, a photo sensor that is provided inside the infrared transmitting film and detects the transmittance of the infrared transmitting film, and a second photo sensor that compares the output of the photo sensor with a predetermined reference value.
1. A tempura fire prevention device comprising: a comparator; and a display element that is activated when it is detected by the output of the second comparator that the output of the photo sensor has fallen below a certain value.