Gas stove

Abstract

A gas stove includes a stove body, a burner, a valve seat, a flow controller, a lighting device, and a temperature sensor. The character of the present invention is further provided with a control unit, which includes an operation device and a control device. The operation device includes a power switch and setting keys for set and adjustment of temperature and time, and the control device is electrically connected to the operation device, the flow controller, the lighting device and the temperature sensor to close the flow controller to stop the burner when the temperature sensor senses a temperature identical to a setting temperature and to open the flow controller and start the lighting device to make the burner burning when the temperature senses a temperature lower than the setting temperature.

1 . A gas stove, comprising:
 a stove body to support a pot thereon;   a burner, which is provided in the stove body under the pot, having an inlet;   a valve seat, which is provided in the stove body, having an outlet associated with the inlet of the burner;   a flow controller, which is provided on the valve seat, connecting the outlet of the valve seat and a gas supply;   a lighting device beside the burner;   a temperature sensor having an end intruding into the pot; and   a control unit including an operation device in the stove body and a control device, wherein the operation device includes a power switch and setting keys for set and adjustment of temperature and time, and the control device is electrically connected to the operation device, the flow controller, the lighting device and the temperature sensor to close the flow controller to stop the burner when the temperature sensor senses a temperature identical to a setting temperature and to open the flow controller and start the lighting device to make the burner burning when the temperature senses a temperature lower than the setting temperature.   
   
   
       2 . The gas stove as defined in  claim 1 , wherein the gas stove is a normally closed electromagnetic valve. 
   
   
       3 . The gas stove as defined in  claim 1 , wherein the control device includes a circuit board and a microprocessor, in which the circuit board is electrically connected to the operation device, the flow controller, the lighting device and the temperature sensor, and the microprocessor is provided on the circuit board with functions of memorizing, comparing and setting control values and outputting control signals and receiving signals of the temperature sensor and outputting control signals to lighting device and flow controller. 
   
   
       4 . The gas stove as defined in  claim 1 , wherein the operation device includes a panel with the power switch, the setting keys, a plurality of indicators thereon. 
   
   
       5 . The gas stove as defined in  claim 1 , further comprising a flame detection device beside the burner and electrically connected to the controller to make the control device stopping the flow controller and the lighting device when the burner is not lit by the lighting device. 
   
   
       6 . The gas stove as defined in  claim 5 , wherein the flame detection device is a ceramic probe device. 
   
   
       7 . The gas stove as defined in  claim 3 , wherein the circuit board includes a power sensing circuit, a switch control circuit, a temperature sensing circuit, a flow controller control circuit, a lighting device control circuit, temperature setting keys and control circuits of temperature, time, system start and low battery indicators.