Working principle of magnetron in microwave oven
When a constant DC voltage is applied between the anode and cathode, the electrons emitted by the cathode will fly to the anode under the influence of the positive potential of the anode, so there is a magnet. ,? There is a magnetic field perpendicular to the electric field in space, so the electrons do wheel swinging motion under the action of magnetic field force and electric field force. Because there is a high-frequency electric field in the anode resonant cavity, an "electron cloud" rotating around the anode will be formed; When the rotating speed is synchronized with the high-frequency magnetic field, electrons give all energy to the high-frequency magnetic field, thus maintaining high-frequency oscillation. This high-frequency energy is output by the microwave energy output device and transmitted to the microwave oven cavity through the waveguide to heat food.
Detection method of magnetron quality in microwave oven
A. After shutdown, discharge the high-voltage capacitor and unplug the two plugs of the magnetron filament.
B. Measure the resistance of two filaments with a multimeter × 1ω, which should be less than 1ω.
C. use × 10k? Is there a filament to ground (metal shell)? ? "Infinite?" ? . Otherwise, it will be broken.
Microwave oven magnetron price
The second-hand one is about 50 yuan, and the new one is much more expensive, but the second-hand one I used is also very easy to use. The installation size and model must be similar, otherwise it will not be installed or it will be difficult to install.
Maintenance of microwave oven magnetron
Open the shield behind the magnetron with wire cutters.
Remove the original magnetron connector insulator with wire cutters.
Make a temporary mold with plastic paper and the original connector insulator, put it on the pin of magnetron, and inject AB glue mixed according to 1: 1.
After curing at room temperature for more than 12 hours, repair and shake the table to measure insulation.
Restore the shielding behind the magnetron according to the original structure.
Replace the magnetron and shell for debugging.
Magnetron manufacturer
Jinan Innovation Industrial Microwave Equipment Co., Ltd. is a high-tech modern technology enterprise integrating R&D, manufacturing, sales and service.
Zhengding He Run Microwave Accessories Sales Co., Ltd. focuses on the design and production of microwave drying equipment, and is also engaged in the design, development and manufacture of other microwave components. The company is a high-tech enterprise with independent intellectual property rights.
Shandong Jinan Mingxin Microwave Equipment Co., Ltd. is a high-tech enterprise integrating science, industry and trade, specializing in the research and development and production of microwave energy application equipment. The company was established on 20 14, located in the north of Songzhuang Industrial Park, Dianzhen, Huaiyin District, Jinan City.
The above is the working principle and quality inspection method of microwave oven magnetron introduced by Bian Xiao, hoping to help you. For more magnetron information, please continue to pay attention to Tuba Rabbit Decoration Network.
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