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EMC design household appliances

At present, the electronic information technology advances, the Washing machine capacitor digital wave of choppy, and the advent of the Internet age and will appliance industries as a result of a new, broader market. 21 household electrical appliances will expand the concept and extended, on the future development of China's household electrical appliance manufacturing confidence. However, it is important to establish a foundation, that is, household appliances electromagnetic compatibility design.

     1, household appliances electromagnetic harassment on the impact of electromagnetic environment

     In recent years, with the development of science Washing machine capacitor and technology, energy-saving appliances and rapidly, automation, intelligent, and convenient, comfortable and the trend development. So, as more and more varieties of household appliances, production continues to expand the scale; At the same time, imports of products flooding the market. On the other hand, micro-electronics control technology with the development of a large number of electronic home appliances. This has generated electromagnetic harassment in the other household appliances or electronic equipment reliability of the normal use and have an impact and harm, but it also on people's health caused directly affected. At present, the protection of the electromagnetic environment, and prevent electromagnetic pollution has attracted the world and relevant international organizations, the general concern. or a necessary condition for the market circulation. As China's electromagnetic compatibility certification system establishment and improvement of China's electronic products, including household electrical appliances will continue to improve electromagnetic compatibility, then gradually reduced electromagnetic pollution, the protection of the vital interests of the broad masses of users.

     In accordance with the home electronics have an impact on the electromagnetic environment of reasons, household appliances can be divided into the following types:

     (1) from the motor commutator with the Washing machine capacitor functioning of the process of formation of brush contact with the commutator sparks and produce electromagnetic harassment household appliances, such as vacuum cleaners, hair-dryer, electric sewing machines, food mixers, electric shavers; Electromagnetic harassment means any other potential home electricity electronic equipment performance or reduce or harm to human health effects of electromagnetic phenomena;

     (2) As the frequent switching action arising from electromagnetic harassment household appliances, such as electric rice Fort, electric iron,, refrigerators, washing machines, etc.;

     (3) the time of commencement of low pressure distribution network may cause the indicators fell, led other household appliances or electronic equipment can not operate normally in household electrical appliances, such as air conditioners for commencement of the large current-voltage power grids will Washing machine capacitor temporarily decline, electric motor or emotional repression converter isoelectric inductive load will lead commencement Power Power Factor decline in the Frequency Control of the air conditioner will have power electronic devices such as power harmonics
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