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Control circuit and cooker

A control circuit and controller technology, applied in the field of cooker, can solve problems such as circuit failure and failure to close the electromagnetic valve in time

Pending Publication Date: 2019-11-22
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, in order to enable the cooker to close the solenoid valve immediately after the flame is turned off, software is used to actively control the solenoid valve. When using the software control method, if the software fails, the circuit may fail, and the solenoid valve cannot be closed in time, causing danger.

Method used

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Embodiment Construction

[0038] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0039] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances suc...

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Abstract

The invention provides a control circuit and a cooker. The control circuit includes a solenoid valve, a thermocouple, a negative pressure generating module, a first resistor, a normally closed switchand a detection control module; the solenoid valve comprises a first coil and a second coil, and the first end of the first coil and the first end of the second coil are grounded; a first pin of the thermocouple is connected to the second end of the first coil; one end of the first resistor is connected to the negative pressure generating module, and the other end of the first resistor is connected to the second end of the second coil; one end of the normally closed switch is connected to one end of the first resistor, the other end of the normally closed switch is connected to the other end of the first resistor, and the normally closed switch is provided with a controller; the detection control module is connected to the first pin and the controller and is used for controlling the controller to open the normally closed switch when the heating temperature of the thermocouple is not higher than the first temperature; and when the heating temperature of the thermocouple is higher than the first temperature, the normally closed switch is automatically closed. By means of the control circuit and the cooker, it can be ensured that the solenoid valve is automatically closed when software fails, and the safety is improved.

Description

technical field [0001] The present application relates to the field of cookers, in particular to control circuits and cookers. Background technique [0002] Gas stoves are commonly used by household kitchen users. The gas switch of the stove is usually a solenoid valve. After the solenoid valve is energized, it attracts the valve core to control the opening of the gas inlet valve. After the solenoid valve is powered off, it resets under the action of the spring force to close the inlet valve. . [0003] In the prior art, in order to enable the cooker to close the solenoid valve immediately after the flame is turned off, software is used to actively control the solenoid valve. When using the software control method, if the software fails, the circuit may fail, and the solenoid valve cannot be closed in time, causing danger. [0004] Therefore, it is an urgent problem to be solved in this field to provide a control circuit independent of software, which can automatically clos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C3/12
CPCF24C3/126
Inventor 金胜昔曾森李绍健王光汉张秋俊吴威龙
Owner GREE ELECTRIC APPLIANCES INC
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