Microwave ovens are generally set up the primary and secondary interlock switch and monitor ( interlock ) switch , its role and principles have been introduced in the previous article. The reason for setting the microwave oven interlock switch device such a set , is to ensure that the door can not be opened when the power is turned on , to prevent microwave leakage , to ensure the safety of the operator, we must not ignore this device in maintenance .Nvyservice manual download site

    When microwave ovens work , although the door is closed, but there will be a very small microwave leakage , but under normal circumstances would not cause harm to humans , because in the microwave research and development, production and chassis have been anti-microwave , oven cavity , door , etc. leaks were reasonably designed to ensure that the microwave leakage may well below the level of damage to human health . Nevertheless, we still need to pay attention microwave leakage problems in maintenance . Because the work microwave oven , microwave leakage pathways its main door and the gap between the door and the cavity , if the oven door , the door hooks, door seal or a damaged shell , injury , it could lead to excessive microwave leakage , cause injury to the operator .Nvyservice manual download site
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  The door has two main leakage preventive measures , first door on the window to observe the leakage preventing means , the observation window is provided with a cell density , a large impedance of the microwave metallic shield , which is by microwave weak. Another is a four- door in the surrounding are set choke grooves ( choke groove ) structure. Choke groove using a 1/4 wavelength short-circuited transmission line design principles , with the choke groove in the closed state of the door , around the gap at the door of the microwave exhibit large impedance , it effectively prevents the microwaves from the door joints leak out.Nvyservice manual download site