Electric kettle control circuit and system
A technology for controlling circuits and electric kettles, which can be used in control/regulation systems, non-electric variable control, and simultaneous control of multiple variables, etc., and can solve problems such as damage to the heating body of the kettle, fire, etc.
Inactive Publication Date: 2017-10-27
张永超
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Problems solved by technology
[0002] Electric kettles are widely used in tea art. The existing electric kettles will be equipped with some protection measures, such as temperature detection, water shortage protection, etc., but the temperature detection is only used to control the water temperature in the kettle, because the kettle is a heating element with a heating tube. To boil water, users may sometimes forget to turn off the power, or there is no water in the kettle, and then start heating, which may damage the heating element of the kettle, and even cause a fire
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[0016] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, the embodiment of the present invention proposes a control circuit and system for an electric kettle. Conductive line 28 and temperature control terminal 14, the anti-dry heating system includes water level touch pin 27, pull-up resistor 17, anti-dry heating conductive line 29 and anti-dry heating terminal 15, the thermistor 26 and water level touch pin 27 Both are placed in the two-in-one probe 2. One end of the temperature control conductive line 28 is connected to the thermistor 26, and the other end is connected to the temperature control terminal 14. One end of the anti-dry heating conductive line 29 is connected to the water level touch pin 27 and the pull-up resistor. 17 and thermistor 26, and the other end connects anti-dry burning terminal 15. The two-in-one probe 2 includes a temperature control probe 23, an anti-dry heating probe 21 and a sealing cover 24. The lower part of the temperature c...
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The invention discloses a control circuit and system of an electric kettle, including a power supply system, a display system, a temperature measurement system and an anti-dry heating system. The dry heating system includes a water level contact pin, a pull-up resistor, an anti-dry heating conductive line and an anti-dry heating terminal. Probe, anti-dry probe and sealing cover, one end of the temperature control conduction line is connected to the thermistor, the other end is connected to the temperature control terminal, one end of the anti-dry conduction line is connected to the water level touch pin, pull-up resistor and thermistor, and the other end is connected to the temperature control terminal. One end is connected to the anti-dry heating terminal, and the power supply system, display system, temperature measurement system and anti-dry heating system are all connected to the control chip. By adopting the above structure, a safe, reliable, simple and practical device can be obtained, which can simultaneously monitor the water temperature and water volume, and automatically stop heating to prevent dry boiling when the water level is lower than the warning water level.
Description
technical field [0001] The invention relates to an electric kettle control system, in particular to an anti-dry heating control circuit and system. Background technique [0002] Electric kettles are widely used in tea art. The existing electric kettles will be equipped with some protection measures, such as temperature detection, water shortage protection, etc., but the temperature detection is only used to control the water temperature in the kettle, because the kettle is a heating element with a heating tube. To boil water, users may sometimes forget to turn off the power, or there is no water in the kettle, and then start heating, which may damage the heating element of the kettle, or even cause a fire. Contents of the invention [0003] In view of this, the technical problem to be solved by the present invention is to provide an anti-dry heating control circuit and system that can simultaneously monitor the water temperature and water volume of the kettle, and automati...
Claims
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IPC IPC(8): G05D27/02A47J27/21
Inventor 黄静领张永超
Owner 张永超