Midea induction cooker working principle circuit diagram
The induction cooker uses the principle of physical electromagnetic induction, generates a magnetic field by transmitting current through a coil, and converts electric energy into heat energy to work. When the induction cooker officially starts working, the original AC voltage is converted into DC voltage, and then the DC voltage is converted into high-frequency AC power supply to power the induction cooker. Under the action of high-frequency alternating current, the current at the bottom of the pot will be repeatedly cut and changed, and eddy current will be generated at the bottom of the pot, and heat will be generated by the physical short-circuit effect of small resistance and large current, so that the pot will be heated rapidly, thus heating the food in the pot.
The heating method of generating heat energy by vibration is very in line with the concept of energy saving and environmental protection advocated by today's society and is very popular in daily life.
Introduction of related accessories of Midea induction cooker
Generally speaking, induction cooker can be divided into two parts: electronic circuit and structural package, and there are small structures under both parts.
The electronic circuit of the induction cooker consists of a main board, a control display board, a transformer, a coil plate and a fan motor.
High voltage motherboard: responsible for the reflow of the circuit.
Low-voltage motherboard: It has related functions of computer control.
Control display board: display the working state of induction cooker and convey working instructions.
Transformer: converts the 220V AC voltage in the circuit into DC voltage.
Coil disk: converts high-frequency alternating current that supports the operation of induction cooker into high-frequency alternating magnetic field.
Fan motor: auxiliary heat dissipation function of induction cooker when working.
The structural package of induction cooker consists of power cord, ceramic board, electric control board, thermistor, etc.
Power cord: introduce external current into the induction cooker to work.
Ceramic plate: imported advanced heat-resistant materials are used.
Electric control board: an important part of induction cooker, including various modular devices to help the induction cooker work.
Thermistor: transmits the heat signal of the induction cooker to the control circuit.
How to solve the common faults of Midea induction cooker? Summary of maintenance points of Midea induction cooker
Solutions to Common Faults of Midea Induction Cooker
Common faults 1: When the plug is plugged in, B 1 cannot be heard, and the power indicator light does not light up.
Solution:
1. See if there are any environmental factors around, such as plug falling off, fuse blowing or automatic switch opening.
2. See whether the pot is suitable, whether it is placed in a suitable position, and whether its diameter is less than 12cm.
3. Besides the problems of internal parts, it may be necessary to refer to the maintenance specifications or find professionals.
Common fault 2: intermediate heating, suddenly the induction cooker stops working.
Solution:
1. It may reach the highest temperature point, and power will be restored after about 10 seconds.
2. It may be that the internal temperature is too high, and it can be restarted in about 4 minutes.
3. See if you pressed the wrong function key.
When porridge and soup are cooked automatically, the water in the pot is dry.
Of course, there is the problem of external power supply, which needs to be checked.
6. Of course, if these problems are not true, they may be internal problems of the induction cooker, or you need to participate in the maintenance code or find maintenance personnel.
Common fault 3: function keys and indicator lights are normal, but the sound alarm prompts that there is no pot.
Solution: Check the power board. There may be something wrong with the resistor and it needs to be replaced.
Common fault 4: All wires are plugged in, and the indicator light is on, but the induction cooker does not generate heat.
Solution: lock the coil; Replace the zener diode; Change the basic components.
Common fault 5: normal heating, but the indicator light is not on.
Solution: Replace LED diode and LED substrate assembly.
Common fault six: the buzzer keeps ringing.
Solution: Check whether the switch, thermistor and main control IC are normal; Check whether the transformer is normal; Check or replace the backplane assembly.
Summary of maintenance points of Midea induction cooker
Midea is a national chain home appliance brand, so Midea will have corresponding maintenance service points all over the country. There are thousands of maintenance service shops authorized by the general manager in China, which are distributed in major cities across the country. If you want to maintain a beautiful induction cooker, you can go to the local maintenance point. Can you call Midea's service hotline at 400-889-93 15? 400-889-93 16? Consult address information. You can also call the local telephone for consultation:
Beijing: Beijing People's Household Appliances Maintenance Service Center? 0 10-86 187075
Chengdu: chenghua district Zhongzhi Household Electrical Maintenance Department? 028-83288480
Shenzhen: Mei Jia Electrical Service Department, Xin 'an, Baoan District, Shenzhen? 0755-296 10005
Shanghai: Shanghai lianzhiyou home appliance repair and operation department? 02 1-5 1767 186
Nanjing: Nanjing Navigation Electrical Maintenance Co., Ltd.? 025-8470 1947
Chongqing: Xiang Bo Home Appliance Maintenance Center, Fuling District? 023-72227025
Tianjin: Liu Xinlong Home Appliances Maintenance Department, Jinnan District, Tianjin? 022-58052930
The induction cooker with the reputation of "cooking artifact" has really helped people solve many problems on weekdays, and Midea induction cooker also has a good reputation in the industry. Although the working principles of induction cookers are similar, the materials used may be different. Bian Xiao wants to remind friends who use induction cookers that the temperature of the heated induction cooker is very high, so don't touch the heating area with your hands to avoid burns. Identifying products under big brands can not only protect property rights; More importantly, ensure the safety and health of use. The above is the introduction of the circuit diagram and maintenance of Midea's induction cooker, hoping to help you.