Gas stove with flame detection

Abstract

A gas stove with flame detection comprises a switch module, a flame detection module and a processing module. The switch module generates an ignition signal when a gas stove flame is lit. The flame detection module generates a first light wave signal when the flame detection module detects light wave having wavelengths of about 400 nm to 500 nm, and the flame detection module generates an second light wave signal when the flame detection module detects light wave having wavelengths of about 600 nm to 780 nm. The processing module turns on an air drafting device and an alarm device when the processing module receives the first light wave signal and the second light wave signal at the same time or only receives the second light wave signal.

What is claimed is: 
     
         1 . A gas stove with flame detection electrically connected to an air drafting device and an alarm device, comprising:
 a switch module generating an ignition signal to ignite a fuel from a gas stove, and a gas stove flame generating from the fuel;   a flame detecting module including a visible light detecting unit for detecting combustion state of the gas stove flame to generate a first light wave signal at wavelength ranging from 450 nm to 500 and a second light wave signal at wavelength ranging from 600 nm to 780 nm and,   a processing module electrically connected to the switch module and the flame detecting module, activating the air drafting device and the alarm device when receiving both the first light wave signal and the second light wave signal or only the second light wave signal from the flame detecting module, and receiving the ignition signal from the switch module.   
     
     
         2 . The gas stove with flame detection as recited in  claim 1 , wherein when the flame detecting module is detecting for the gas stove flame, and the processing module receives both the first light wave signal and the second light wave signal or only the second light wave signal, the processing module shuts off a gas supply value or adjusts a gas stove gate. 
     
     
         3 . The gas stove with flame detection as recited in  claim 1 , wherein when the flame detecting module is detecting for the gas stove flame, and the processing module receives the first light wave signal and the second light wave signal, the processing module activates the air drafting device and the alarm device. 
     
     
         4 . The gas stove with flame detection as recited in  claim 1 , wherein when the flame detecting module is detecting the gas stove flame, and the processing module receives the first light wave signal and the second light wave signal, the processing module shuts off a gas supply value or adjusts a gas stove gate. 
     
     
         5 . The gas stove with flame detection as recited in  claim 1 , wherein the flame detecting module includes at least one infrared detecting unit or at least one ultraviolent detecting unit. 
     
     
         6 . The gas stove with flame detection as recited in  claim 5 , wherein the infrared detecting unit generates a third light wave signal at wavelength ranging from 2500 nm to 3000 nm and, when the processing module receives the ignition signal, the flame detecting module detects for flames, whereas when the first light wave signal, the second light wave signal, or the third light wave signal is not received by the processing module, the processing module activates the air drafting device and the alarm device. 
     
     
         7 . The gas stove with flame detection as recited in  claim 6 , wherein when the first light wave signal, the second light wave signal, or the third light wave signal is not received by the processing module, the processing module shuts off a gas supply valve. 
     
     
         8 . The gas stove with flame detection as recited in  claim 5 , wherein the ultraviolet detecting unit generates a fourth light wave signal at wavelength ranging from 185 nm to 260 nm, when the processing module receives the ignition signal, the flame detecting module detects for flames, whereas when the first light wave signal, the second light wave signal, or the fourth light wave signal is not received by the processing module, the processing module activates the air drafting device and the alarm device. 
     
     
         9 . The gas stove with flame detection as recited in  claim 8 , wherein when the first light wave signal, the second light wave signal, or the fourth light wave signal is not received by the processing module, the processing module shuts off a gas supply valve. 
     
     
         10 . The gas stove with flame detection as recited in  claim 1 , wherein the alarm device includes at least one speaker and at least one light emitting unit.