Device and method for suppressing electromagnetic leakage of microwave oven

Abstract

The invention relates to a device for suppressing the electromagnetic leakage of a microwave oven, which is characterized by comprising a box-gap shielding component, a box-hole shielding metal wire mesh, a metal isolating cover (15) and a metal isolating wall (19). The box-gap shielding component is a one-sided sawtooth-shaped beryllium copper reed (1); the box-hole shielding metal wire mesh is arranged on the round-hole areas on two sides of the wall of the microwave oven; the metal isolating cover (15) is assembled together with assembling box of a low-voltage circuit unit through two screw holes at the upper end and the bottom and hereby covers the low-voltage circuit unit; and the metal isolating wall (19) is arranged at the bottom of a microwave stirrer (7) at the tail end of a microwave launching and transmitting channel (18). Due to the adoption of the device, the difficulty of shielding the gap of the shell of the microwave oven is reduced, 90% of high-frequency electromagnetic waves are suppressed from leaking outside, and the purpose of preventing the electromagnetic leakage is achieved.

Description

technical field [0001] The invention relates to a device for preventing electromagnetic radiation, in particular to a device for suppressing electromagnetic leakage of a microwave oven and a method for using the device. Background technique [0002] The household microwave oven converts the AC220V AC voltage through the high-voltage transformer and high-voltage rectifier into a DC voltage of about 4000V through the electronic control system, and sends it to the microwave magnetron to generate 2.45GHz electromagnetic waves to heat food. After passing through the waveguide, the microwave energy is evenly diverged into the oven cavity by the stirrer, and forms multiple reflections in the metal oven cavity. Most of the reflected waves penetrate the food to achieve the purpose of heating the food. However, usually in the microwave emission process of the microwave oven electronic control system, it involves interference and coupling between high-voltage circuits, low-voltage circ...

AI Technical Summary

Problems solved by technology

The above radiation protection methods for electromagnetic leakage of microwave ovens are only one-sided. On the one hand, they cause inconvenience to users during use;

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