When was the refrigerator invented?

The first refrigerator with motor-driven compressor was invented by Swedish engineers Brighton and Mendes in 1923. Later, an American company bought their patent and produced the first batch of household refrigerators at 1925.

In the first refrigerator, the electric compressor and the refrigerator were separated, and the latter was usually placed in the cellar or storage room of the family and connected with the electric compressor through pipes, and then they were combined into one.

Before 1930s, most refrigerants used in refrigerators were unsafe, such as diethyl ether, ammonia water and sulfuric acid. Flammable, corrosive or irritating.

Later, I started looking for a safer refrigerant and found Freon. Freon is a non-toxic, non-corrosive, non-flammable fluorine compound, which quickly became the refrigerant of various refrigeration equipment and has been used for more than 50 years.

Extended data

Color development method

/kloc-in the middle of the 0/7th century, the word "refrigerator" entered the American language. Before that, refrigerators only affected the diet of ordinary Americans. With the development of the city, the sales of methamphetamine have gradually developed. It is gradually used by hotels, hotels, hospitals and some discerning city businessmen to keep meat, fish and butter fresh.

After the civil war (186 1- 1865), ice was used to refrigerate freight cars and also entered civil use. Before 1880, half of refrigerators sold in new york, Philadelphia and Baltimore, and one third in Boston and Chicago began to be used at home, because a new household equipment-refrigerator, the predecessor of modern refrigerator, was invented. Similar products include freezers.

19 10 the world's first compressed refrigeration household refrigerator came out in the United States. 1925 Lido Company of Sweden has developed a household absorption refrigerator. 1927 the general electric company of the United States has developed a fully enclosed refrigerator.

1930, air-cooled continuous diffusion absorption refrigerators with different heating methods were put on the market. 193 1 year, a new refrigerant freon 12 was successfully developed. Domestic thermoelectric refrigerators began to be produced in the second half of 1950s, and refrigerators began to be produced in China in 1950s.

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