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1, Introduction:
Household appliances (HEA) mainly refer to all kinds of electrical and electronic equipment used at home and similar places. Also known as civil appliances and household appliances. Household appliances liberate people from heavy, trivial and time-consuming housework, create a more comfortable and beautiful living and working environment for human beings, and provide rich and colorful cultural and entertainment conditions, which has become a necessity of modern family life. Household appliances have a history of nearly a hundred years, and the United States is considered to be the birthplace of household appliances. The scope of household appliances varies from country to country, and there is no unified classification of household appliances in the world. In some countries, lighting appliances are listed as a category of household appliances, audio-visual appliances are listed as entertainment appliances, and entertainment appliances also include electric electronic toys.
2. The classification method of household appliances has not been unified internationally. But it is common to classify products according to their functions and uses, which can be roughly divided into eight categories. (1) refrigeration appliances. Including household refrigerators, cold drinks machines, etc. ② air conditioning. Including room air conditioners, electric fans, ventilation fans, cold and hot fans, air dehumidifiers, etc. ③ Clean electrical appliances. Include washing machines, clothes dryers, electric irons, vacuum cleaners, floor polishers and the like. (4) kitchen appliances. Include electric cookers, microwave ovens, induction cookers, electric ovens, electric cookers, dishwashers, electric water heaters, food processors and the like. ⑤ Electric heater. Comprises an electric blanket, an electric quilt, a hydrothermal blanket, an electric suit and a space heater. ⑥ Beauty and health care appliances. Comprises an electric shaver, a hair dryer, a hair clipper, an ultrasonic face washer and an electric massager. ⑦ Audio-visual appliances. Including mini-projector, TV, radio, tape recorder, video recorder, video camera, music center, etc. ⑧ Other electrical appliances, such as fireworks alarms and electric bells.
With the improvement of living standards, water purifiers have become a member of household appliances, and more and more families use this new type of electrical products: with the serious pollution of most water bodies in the world, the contradiction of water shortage has intensified. Traditional tap water treatment methods can no longer guarantee the provision of high-quality drinking water, and there are still secondary pollution problems in municipal water supply, such as high-rise water tank supply and long tap water pipeline, which will cause potential pollution problems such as rust, sediment and microorganisms. So various brands of water purifiers came into being, and the filtration methods and materials used by various water purifiers were also different. Among them, the domestic natural beauty brand water purifier products meet the drinking water standards of Chinese people.