What should we pay attention to when buying an induction cooker?
The reliability index of induction cooker is generally expressed by MTBF (average trouble free working time), the unit is "hour", and the quality product should be more than 10 thousand hours. The life of induction cooker mainly depends on the use of the environment, maintenance and the life of the main components. It has been speculated that induction furnaces will enter a period of failure after three or four years.Note the electromagnetic oven protection function it should have to buy many kinds of protective devices, including small object detection, automatic shutdown overheating protection, overvoltage or undervoltage protection, automatic shutdown protection, automatic stop burning air heating for 2 hours, 1 to 2 minutes off protection automatic shutdown protection and alarm display etc.. When buying and selling, should press the "instruction manual" on the detection method, the electric test machine to see whether the protection function is normal.Random detection performance, with a pot attached to add cold water, turn on the power, press the "heating" button, heating at room temperature for 4~5 minutes to boil it, indicating that the furnace heating basically normal.
The first is power selection. At present, the power of the electromagnetic oven put on the market is between 800~1800W and divided into several files. The greater the power, the faster the heating rate, but more power consumption, the price is also expensive, therefore, the purchase should be based on the number of meals and the use of the situation. Generally speaking, 3 or so families choose about 1000W; 4~5 candidates 1300W; 6~7 candidates 1600W is appropriate; more than 8 people choose 1800W induction cooker.High quality induction cooker should have automatic adjustment of output power, which can improve power supply adaptability and load adaptability. Some electromagnetic ovens do not have this function, when the power supply voltage rises, the output power rises sharply. When the power supply voltage drops, the power decreases significantly, which brings inconvenience to the users and affects the quality of cooking.The quality of the electromagnetic oven for selecting the transistor depends on the quality of the high frequency large power transistor and the ceramic glass-ceramic panel. When buying and selling, be sure to buy high speed, high voltage, high current single high-power transistor electromagnetic oven, because of its good quality, excellent performance, high reliability, not easy to damage.
Specific considerations may be tested by the following methods:First, the detection of thermal energy conversion. When the iron vessel is placed on the induction cooker and the switch is turned on, the bottom of the vessel should soon be hot. When the induction cooker is working, there is no sound of current, AC sound and shock in the coil of the induction cooker, except for the normal sound of the cooling fan.Two, check whether the automatic detection function is working properly. This function is the automatic protection function of the induction cooker. The function of this function is very important for the induction cooker. When buying, should pay attention to actual measurement. The method is: in the state of the electromagnetic oven is working to go down the pot, or placed in the furnace on the surface of iron spoon should not be heated by the electromagnetic oven detection time required to observe whether the function alarm or automatic shut off power.Three, fan should work smoothly. Should pay attention to when buying in the electromagnetic oven does not work, the induction cooker upside down and shake it, fan blades and the shaft, the shaft and the bearing should be no gap between, not Songkuang; power, the motor should be no noise or friction sound.Four, the furnace surface should be smooth and without damage. Today, most of the stoves on the market are made of heat-resistant crystalline ceramics. In the purchase, we should pay attention to the furnace surface roughness. If the furnace surface is convex, concave or inclined on one side, it will affect the normal production of thermal efficiency.
