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US 11,320,150 B2Granted
Gas cooking appliance
AssigneeCopreci, S.Coop.
InventorsFélix Querejeta Andueza, Aitor Zabalo Bayon
Life of this patent
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Abstract
A cooking appliance is disclosed that according to one embodiment includes a plurality of gas burners, an electrode associated with each burner for igniting the flame, a flame sensor associated with each burner for monitoring the flame and at least one electric switch associated with an actuator that is transitional between open and closed positions. The cooking appliance also includes a control unit electrically connected to the electrodes, the flame sensors, and the switch. When the switch assumes the closed position, the control unit is activated and then in turn powers the electrodes and the flame sensors. Thereafter, the control unit sequentially monitors the presence or absence of flame in the burners during repeated time cycles.
Claims19
A gas cooking appliance comprising:
- a plurality of gas burners that are each configured to produce a flame;
- an electrode associated with each burner that when activated is configured to ignite the flame;
- a flame sensor associated with each burner that is configured to produce a flame detection signal, the flame detection signal being a flame presence detection signal or a flame absence detection signal that are respectively indicative of a presence and absence of the flame;
- a gas flow regulating valve associated with each burner that is configured to regulate a gas flow to the burner, the gas flow regulating valve being located in a gas flow path between a gas supply conduit and the burner, the gas valve transitional between first and second positions, in the first position gas flow to the burner is prevented and in the second position gas flow is provided to the burner;
- an actuator including a switch that transitions between open and closed positions;
- and
- a control unit electrically powered at a first voltage, and electrically connected to the electrodes, the flame sensors, and the switch, the control unit configured to be activated upon the switch assuming the closed position and to then activate the electrodes and the flame sensors, the control unit configured to receive the flame detection signal to determine the presence or absence of the flame, the control unit being configured to monitor the flame detection signals of each of the flame sensors one at a time during each of a repeating first time cycle, the control unit being configured to generate detection voltage signals at a second voltage greater than the first voltage, the control unit includes a multiplexer that is configured to sequentially send the detection voltage signals to the flame sensors and to sequentially receive in response the flame detection signals from the flame sensors to monitor the presence or absence of the flame, the control unit being configured to generate ignition voltage signals at a third voltage greater than the first voltage and to send the ignition voltage signals to the electrodes for the purpose of igniting the flame in the burners, the sending of the ignition voltage signal, the sending of the detection voltage signal, and the reception of the flame detection signal are carried out in a serial manner in second time cycles, the sum of the second time cycles being less than a single first time cycle.
4 more elements
A gas cooking appliance comprising:
- a plurality of gas burners that are each configured to produce a flame;
- an electrode associated with each burner that when activated is configured to ignite the flame;
- a flame sensor associated with each burner that is configured to produce a flame detection signal, the flame detection signal being a flame presence detection signal or a flame absence detection signal that are respectively indicative of a presence and absence of the flame;
- a gas flow regulating valve associated with each burner that is configured to regulate a gas flow to the burner, the gas flow regulating valve being located in a gas flow path between a gas supply conduit and the burner, the gas flow regulating valve having a first position in which gas flow to the burner is prevented and a second position in which gas flow is provided to the burner;
- an actuator associated with each gas flow regulating valve, each actuator including a switch that transitions between open and closed positions, the switch being in the open position when the gas flow regulating valve is in the first position, the switch being in the closed position when the gas flow regulating valve is in the second position;
- and
- a control unit electrically powered at a first voltage, and electrically connected to the electrodes, the flame sensors, and the switches, the control unit configured to be activated upon one of the switches assuming the closed position and to then activate the electrodes and the flame sensors, the control unit configured to receive the flame detection signals to determine the presence or absence of the flame, the control unit being configured to monitor the flame detection signals of the flame sensors one at a time during each of a repeating first time cycle, the control unit being configured to generate detection voltage signals at a second voltage greater than the first voltage, the control unit includes a multiplexer that is configured to sequentially send the detection voltage signals to the flame sensors and to sequentially receive in response the flame detection signals from the flame sensors to monitor the presence or absence of the flame, the control unit being configured to generate ignition voltage signals at a third voltage greater than the first voltage and to send the ignition voltage signals to the electrodes for the purpose of igniting the flame in the burners, the sending of the ignition voltage signal, the sending of the detection voltage signal, and the reception of the flame detection signal are carried out in a serial manner in second time cycles, the sum of the second time cycles being less than a single first time cycle.
4 more elements
Dependencies are inferred from the claim text.