Oven

Patent metadata

Field	Value
Publication number	US-10598387-B2
Application number	US-201515548415-A
Country	US
Kind code	B2
Filing date	Apr 14, 2015
Priority date	Feb 12, 2015
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

The present invention provides an oven, including: an oven body; and a gas circuit system and an electric circuit system, both of which are installed on the oven body; the gas circuit system includes: a gas pipeline; a combustor installed in the oven body and being in communication with an outlet of the gas pipeline; a control switch installed on the gas pipeline; and an electric control valve controlling connection and disconnection of the gas pipeline together with the control switch; the electric circuit system includes: a controller connected to the electric control valve and matched with the control switch for use, wherein when the control switch is turned on, the controller switches on the electric control valve, and when the control switch is turned off, the controller switches off the electric control valve; and a timer.

First claim

The invention claimed is:

1. An oven, comprising:
an oven body; and
a gas circuit system and an electric circuit system, both of which are installed on the oven body; wherein the gas circuit system comprises:
a gas pipeline installed on the oven body;
a combustor installed in the oven body and being in communication with an outlet of the gas pipeline;
a control switch installed on the gas pipeline; and
an electric control valve installed on the gas pipeline and controlling connection and disconnection of the gas pipeline together with the control switch; the electric circuit system comprises:
a controller installed on the oven body, connected to the electric control valve and matched with the control switch for use, wherein when the control switch is turned on, the controller switches on the electric control valve, and when the control switch is turned off, the controller switches off the electric control valve; and
a timer installed on the oven body and connected to the controller, and when the timer times out, the timer can control the controller to switch off the electric control valve, so that the electric control valve disconnects the gas pipeline;
wherein the timer comprises a first IC chip, the first IC chip is a timing chip;
wherein the controller is a second IC chip comprising a single chip processor;
wherein the single chip processor is configured to receive and process signal from the first IC chip, and output instruction to the electric control valve to control its on-off.

2. The oven of claim 1 , wherein,
the electric control valve is located between the control switch and an inlet end of the gas pipeline.

3. The oven of claim 2 , wherein
the electric control valve is a two-position two-way electric control valve.

4. The oven of claim 3 , wherein the electric circuit system further comprises:
a linked switch installed between the timer and the controller and matched with the control switch for use; wherein
when the control switch is turned on, the linked switch is turned on, and when the control switch is turned off, the linked switch is turned off.

5. The oven of claim 4 , wherein,
the timer is connected to a main path of the electric circuit system in parallel, and the linked switch and the controller are connected to the main path of the electric circuit system in series.

6. The oven of claim 5 , wherein,
the controller comprises a first resistor, a triode and a diode, which are connected with one another, wherein the diode and the electric control valve are connected in parallel.

7. The oven of claim 2 , wherein the electric circuit system further comprises:
a linked switch installed between the timer and the controller and matched with the control switch for use; wherein
when the control switch is turned on, the linked switch is turned on, and when the control switch is turned off, the linked switch is turned off.

8. The oven of claim 7 , wherein,
the timer is connected to a main path of the electric circuit system in parallel, and the linked switch and the controller are connected to the main path of the electric circuit system in series.

9. The oven of claim 8 , wherein,
the controller comprises a first resistor, a triode and a diode, which are connected with one another, wherein the diode and the electric control valve are connected in parallel.

10. The oven of claim 9 , wherein,
the controller further comprises a second resistor; wherein
a first end of the first resistor is connected with an output end of the first IC chip, and a second end of the first resistor is connected with a base of the triode;
a collector of the triode is connected with an anode of the diode and the first end of the electric control valve, an emitter of the triode is grounded, and the second resistor is connected between the base and the emitter of the triode; and
a cathode of the diode is connected with a DC power supply after being connected with a second end of the electric control valve.

11. The oven of claim 9 , wherein,
the controller further comprises a second resistor; wherein
the first end of the first resistor is connected with the output end of the first IC chip, and the second end of the first resistor is connected with the base of the triode;
the emitter of the triode is connected with the cathode of the diode and the first end of the electric control valve, the collector of the triode is grounded, and the second resistor is connected between the base and the emitter of the triode; and
the anode of the diode is connected with the DC power supply after being connected with the second end of the electric control valve.

12. The oven of claim 1 , wherein the electric circuit system further comprises:
a linked switch installed between the timer and the controller and matched with the control switch for use; wherein
when the control switch is turned on, the linked switch is turned on, and when the control switch is turned off, the linked switch is turned off.

13. The oven of claim 12 , wherein,
the timer is connected to a main path of the electric circuit system in parallel, and the linked switch and the controller are connected to the main path of the electric circuit system in series.

14. The oven of claim 1 , wherein,
the controller comprises a first resistor, a triode and a diode, which are connected with one another, wherein the diode and the electric control valve are connected in parallel.

15. The oven of claim 14 , wherein,
the controller further comprises a second resistor; wherein
a first end of the first resistor is connected with an output end of the first IC chip, and a second end of the first resistor is connected with a base of the triode;
a collector of the triode is connected with an anode of the diode and the first end of the electric control valve, an emitter of the triode is grounded, and the second resistor is connected between the base and the emitter of the triode; and
a cathode of the diode is connected with a DC power supply after being connected with a second end of the electric control valve.

16. The oven of claim 14 , wherein,
the controller further comprises a second resistor; wherein
the first end of the first resistor is connected with the output end of the first IC chip, and the second end of the first resistor is connected with the base of the triode;
the emitter of the triode is connected with the cathode of the diode and the first end of the electric control valve, the collector of the triode is grounded, and the second resistor is connected between the base and the emitter of the triode; and
the anode of the diode is connected with the DC power supply after being connected with the second end of the electric control valve.

Assignees

• Guangdong Midea Kitchen Appliances Mfg Co Ltd
• Midea Group Co Ltd

Inventors

• Wang Cheng
• Zhang Kai
• Wang Xunzhang

Classifications

• F24C3/128 Primary

  in baking ovens · CPC title

• F23N1/005

  using electrical or electromechanical means (F23N1/04 - F23N1/10 take precedence) · CPC title

• F23N1/002

  using electronic means (F23N1/04 - F23N1/10 take precedence) · CPC title

• A47J37/06 Primary

  Roasters; Grills; Sandwich grills · CPC title