Speaking of the 90s, at that time, China's economy was developing rapidly, and the life of ordinary people was getting better and better. The winter in the north is so cold that people rely on "burning kang" to keep warm. But in the south, electric blankets have become the new favorite.
After 1983, our country shifted from a planned economy to a market economy, and many foreign companies came to China to set up factories, and electric blankets also became popular. In fact, as early as 1953, the electric blanket came to China, and at that time it was called "electric heating insulation material cloth", which was very expensive and ordinary people could not afford to use it.
In the late 80s and early 90s, the technology of electric blankets improved, the cost also decreased, and the price became much more affordable. Merchants also advertise that electric blankets can prevent rheumatism and colds, so that electric blankets have become the treasure of every household.
In northern cities, you can't burn kang, so electric blankets have become a necessity; Although the elderly in the countryside are reluctant to spend money, when the children who work in the city come home for the Chinese New Year, they will buy electric blankets as gifts for the elders, so that the rural market is also on fire.
Safety issues and improvements in electric blankets
However, the good times did not last long, and the electric blanket was used too much, and the problem also came. In the winter of 1992, there were many fires in Jiangsu, and it was found that they were all caused by electric blankets. The electric blanket works by heating the resistance wire, and if the quality is not up to par, it is easy to have an accident. As soon as these things came out, manufacturers began to pay attention to product quality and improve safety standards.
The working principle of electric blankets is actually quite simple, according to Joule's law, the heat generated is related to the current, resistance and power-on time. In order to make the electric blanket safe and efficient, the resistance wire inside should be wrapped with special insulating and high-temperature resistant materials, and should be evenly distributed in the blanket, so that the heating is fast and uniform. Some brands have also added thermostats and protective devices to make electric blankets safer.
The future of electric blankets
In the 21st century, the market situation of electric blankets has changed a bit. On the one hand, people's living standards have improved, safety awareness has also increased, and the demand for electric blankets is not so high; On the other hand, new heating equipment, such as air conditioning and floor heating, has also become popular and has become a competitor to electric blankets.
However, electric blankets have not been completely eliminated. Today's electric blankets have become smarter and safer, and some can also automatically adjust the temperature, making them more comfortable to use. In addition to household use, electric blankets have also found new uses in medical rehabilitation, pet warmth and other fields.
In general, the electric blanket was once a smash hit, witnessing the improvement of people's lives in the early days of reform and opening up. Although the market share is now small, it is still a practical heating tool, especially in some remote areas or when there are special needs. In the future, with the advancement of science and technology and the change of people's needs, electric blankets will definitely continue to appear in people's lives in a safer and smarter way.