Nowadays more and more families are using induction cookers, and the induction cooker is to make the eddy currents of the pot body to be heated by the magnetic lines. However, in addition to heating the pot body, the magnetic lines generated by the common induction cooker will be partially from the induction cooker body and the pot body. The discharge is released, that is, the electromagnetic radiation is said to be produced; and the electromagnetic oven is irradiated back to endanger human health. After research by scientists, the radiation-free induction cooker is finally produced.
First, the working principle of the induction cooker
The low-frequency AC power supply of 50HZ is converted into a high-frequency AC power supply of 30KHZ-40KHZ, which is directly applied to the coil disk of the induction cooker to generate a high-power electromagnetic field, and then the electromagnetic field magnetic field line is used to generate eddy current for heating, that is, the induction cooker is Directly use magnetic lines to heat the pot.
In addition to heating the pot body, some of the magnetic lines generated by the coil plate in the induction cooker will be vented from the body of the induction cooker, and some will be vented from the pot body. These two parts of the leakage radiation are what people call Discharge electromagnetic radiation.
Induction cooker leakage radiation is divided into two types: magnetic field radiation and electric field radiation. One of them mainly comes from the magnetic field radiation generated by the working current, and the other is mainly from the radiation generated by the alternating electric field. The radiation values ​​of both of them exceed the relevant standards, and the electromagnetic leakage exceeds the standard. Radiation can cause harm to the human body.
Second, the origin of the non-radiative induction cooker
For the induction cooker radiation people have always mistakenly believe that all come from the induction cooker itself, so the research targets of the relevant units at home and abroad are now concentrated on the induction cooker body, for example, some manufacturers increase the radiation shield, some manufacturers increase the radiation protection wall, and some even All of them are made of metal casing for radiation protection, etc. These methods have been tested to have a small effect on the overall elimination of the induction cooker (a slight effect on reducing the magnetic field radiation).
After a long period of research and experimentation, there was a major discovery on the leakage of the induction cooker: that is, the electromagnetic furnace radiates a part of the leakage from the body of the induction cooker, and the other part comes from the reflection of the cooking pot. The measures taken by the company to completely eliminate the radiation of the induction cooker are:
1. Shielding and recovering the leakage electromagnetic radiation from the main body of the induction cooker;
2. Install a special radiation recovery sensor on the panel of the induction cooker to introduce the radiation reflected by the cooking pot into the interior of the induction cooker;
3. The radiation of the main body of the induction cooker and the radiation of the introduced body are reused by special means to increase the strength of the magnetic field line heated by the pot body;
4. Introduce the residual radiation that cannot be used into the power ground to eliminate it.
Compared with the existing induction cooker, the "no radiation induction cooker" has the biggest invention point: not only the furnace body radiation elimination device, but also the external leakage radiation introduction and recovery device of the boiler, which can completely eliminate the magnetic field radiation and electric field radiation of the induction cooker. Make Fu Shuai "radiation-free induction cooker" become the world's first non-radiation induction cooker.
Third, the induction cooker mainly has two major components:
(1) It is a high-frequency alternating magnetic field electronic circuit system (including induction cooker coil disk)
(2) It is a structural outer casing for fixing the electronic circuit system and carrying the pot (including a furnace panel capable of withstanding high temperature and rapid changes in heat and cold.
(1) Electronic circuit system includes: power board, main board, light board (manipulation display board), temperature control, coil and thermal bracket, fan, power cord, etc.
(2) The structural outer casing includes: a furnace panel (ceramic plate, black crystal plate), a plastic upper and lower cover, and the like;
(3) Instructions, power stickers, operating film, certificate, plastic bag, shockproof foam, packaging box, barcode, cartoon box.
1. Furnace panel: used to carry the pots, imported and domestically produced, domestic A and B grades can meet the requirements of use.
2. High-voltage main substrate: constitutes the main current loop.
3. Low-voltage main substrate: used for computer control functions.
4, LED circuit board: display working status and transfer operation instructions.
5. Wire reel: Convert high frequency alternating current into transaction variable magnetic field (PAN). 6. Fan assembly: The heat dissipation auxiliary component (FAN) reduces the temperature of the components in the furnace.
7, IGBT: commonly known as power tube, through the low current signal, control the high current on and off (IGBT).
8. Bridge rectifier block: convert AC power to DC power supply (BD101).
9, thermistor parts: the heat signal is transmitted to the control circuit.
10, the thermal switch component: sense the IGBT operating temperature, thus protecting the IGBT from overheating damage
Through Xiaobian's introduction to the induction cooker, Xiaobian believes that most people should have a preliminary understanding of the induction cooker. Compared with the induction cooker, the biggest difference between the non-radiation induction cooker and the induction cooker is that there is a furnace body radiation elimination device, and the external leakage radiation introduction and recovery device of the boiler is also added. If you want to know more, please continue to pay attention to our decoration home network.
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