Nowadays, the induction cooker is an indispensable household appliance in our furniture life, but in the process of using the induction cooker, some small problems will inevitably occur, but some problems can be restored to normal after booting, but some faults are Need to carefully check, the most common is the problem that the induction cooker does not heat, then, what are the reasons for the induction cooker not heating ? What is the working principle of the induction cooker?
First, the reason why the induction cooker does not heat
1. First of all, it may be caused by internal reasons of the induction cooker, including temperature sensor open circuit, short circuit protection IGBT tube overvoltage protection IGBT overcurrent protection. You don't have to worry about these problems, and it will be enough to restart them later.
2. It may also be because the external cause of the induction cooker does not heat, including the external grid voltage is higher or lower than the operating voltage range of the induction cooker, then the protection mechanism inside the induction cooker will force the power off. If the internal temperature of the induction cooker is too high, the temperature alarm mechanism will also force the heating function to be turned off. There is also a pot to prevent dry burning, and the induction cooker will also force a power outage.
3, the induction cooker is intermittent heating, IGBT over-current protection, over-current protection forced to reduce the output power or directly suspend work, delay after a period of time to start again into the working state. This type of protection action will result in "regular intermittent heating".
4. If the induction cooker suddenly stops heating, it is a surge protection; the surge is a kind of spike that is relatively harmful when the voltage in the power grid rises or falls instantaneously. Excessive surge is generally discharged by the varistor. Off, only some small surges will trigger the surge protection circuit action. The nature of protection is a short pause. If the grid is outdated and there is a bad contact, an untimely pause may occur.
5, the induction cooker no-stop heating is because the bathroom pot over-temperature protection; this kind of over-temperature protection is also known as "anti-dry protection", the trigger temperature is 280 to 300 degrees, that is, a 280 degrees, it will automatically Forced shutdown, the temperature is 70 to 80 degrees, this situation can be restarted after waiting for 70 degrees.
Second, the working principle of the induction cooker
1. The induction cooker adopts the principle of electromagnetic induction to heat the food. The furnace surface of the induction cooker is a heat-resistant ceramic plate. The alternating current generates a magnetic field through the coil below the ceramic plate, and the magnetic lines in the magnetic field pass through the iron pan, stainless steel pot, etc. At the bottom, eddy currents are generated, so that the bottom of the pot is heated rapidly to achieve the purpose of heating the food.
2. The working process of the induction cooker: the current and voltage are converted into direct current through the rectifier, and the high-frequency alternating current is converted into the high-frequency alternating current exceeding the audio by the high-frequency power conversion device, and the high-frequency alternating current is applied to the flat hollow spiral induction heating coil. This produces a high frequency alternating magnetic field. The magnetic lines of force penetrate the ceramic platen of the cooktop and act on the metal pan. In the cooking pot, there is a strong eddy current due to electromagnetic induction. The eddy current overcomes the internal resistance flow of the pot body to complete the conversion of electric energy to thermal energy, and the generated Joule heat is the heat source of cooking.
3. Induction cooker is an advanced electronic cooker for modern household cooking. It is very convenient to use and can be used for cooking, frying, frying, steaming, frying and other cooking operations. Features: high efficiency, small size, light weight, low noise, energy saving, no pollution, safe and hygienic, uniform heating during cooking, can better maintain the color, aroma, taste and nutrients of food, is not to modernize the kitchen The new type of electronic cookware that is missing. The power of the induction cooker is generally around 700-1800W.
The above is the reason why the induction cooker does not heat and the working principle of the induction cooker. If you want to know if the induction cooker is not heated, you can refer to Xiaobian for everyone's introduction. I hope I can help everyone, if I still want to know For more renovation information, please continue to pay attention to the decoration home network.
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