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Water boiling detection device for electromagnetic oven

A technology for detection devices and induction cookers, which is applied in measuring devices, measuring heat, and household stoves/stoves, etc. It can solve the problems of easy failure of sensors, non-shutdown, poor automatic effect of boiling water, etc., and achieves the effect of simple circuit structure

Active Publication Date: 2011-07-20
GUANGDONG YINGKE ELECTRONICS
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0004] In addition, some induction cookers are equipped with temperature sensors on the surface of the cooker to detect the water temperature in the pot, but there are large errors, and the temperature is too long to cause the sensor to fail easily, so that the automatic effect of boiling water is very poor, or water appears. Turn off the machine when it is not boiled, or it will not turn off all the time

Method used

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  • Water boiling detection device for electromagnetic oven
  • Water boiling detection device for electromagnetic oven
  • Water boiling detection device for electromagnetic oven

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Embodiment Construction

[0023] see figure 1 As shown, the detection device includes a power supply 3 that is electrically connected with a current detection module 31 and a voltage detection module 32, wherein the voltage detection module 32 is for the total power supply and supplies power to other components, the sound sensor 1 and the sound amplification circuit module 13, is electrically connected to the electromagnetic heating control circuit provided in the single-chip microcomputer 2, and detects the boiling degree of water by the sound received by the sound sensor 1, wherein the sound sensor 1 is electrically connected to the sound amplification circuit module 13, The sound on the electromagnetic oven is received by the sound sensor 1, and the corresponding signal is transmitted to the single-chip microcomputer 2 by using the amplification principle of the sound amplification circuit module 13. The sound amplification circuit module 13 includes a preamplifier circuit 131, Frequency selection c...

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Abstract

The invention discloses a water boiling detection device for an electromagnetic oven. The device comprises an acoustic sensor and an acoustic amplification circuit, wherein the acoustic sensor is electrically connected with the acoustic amplification circuit, and is electrically connected with a singlechip through the acoustic amplification circuit; an electromagnetic heat control circuit is arranged in the singlechip, and receives sound of water boiling through the acoustic sensor. The device not only can detect water boiling, but also can be automatically shut down, and can accurately determine whether the water is boiled or not and is not affected by background noise. The device has a simple circuit structure, and the sound error is in 15 seconds.

Description

technical field [0001] The invention relates to a method for boiling water in an electromagnetic cooker, in particular to a water boiling detection device for an electromagnetic cooker. By setting a rated sound intensity value in a single chip microcomputer, the switch state of the electromagnetic cooker is controlled by using the continuous intensity of the sound when the water boils. Background technique [0002] Induction cooker is widely used by the public because of its instant heating feature. It has good heating effect when applied to high-temperature hot-melt plastics in industry and non-fire cooking in household. [0003] Patent No.: 94244165.6 discloses a vibration-measuring water boiling detection device, which transmits the vibration principle caused by the boiling of water to the vibration sensitive element when the water container of the water boiler is boiled, and the vibration sensitive element converts it into an electrical signal , the signal is amplified...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G01K11/22F24C7/00
Inventor 刘军
Owner GUANGDONG YINGKE ELECTRONICS
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