Car refrigerators are the continuation of household refrigerators and can use semiconductor electronic refrigeration technology, or they can be cooled by compressors. Generally speaking, there is little noise and pollution. When driving, just insert the power plug into the cigarette lighter hole to cool the refrigerator.
There are two main types of car refrigerators on the market. One is a semiconductor car refrigerator. Its principle is to rely on electronic chips for cooling, and use a PN junction composed of special semiconductor materials to form a thermocouple pair, which produces the Peltier effect, that is, it is cooled by direct current. A new type of refrigeration method. The refrigeration temperature range is 5 to 65 degrees.
The refrigerator has the advantages of cooling and heating, environmental protection, no pollution, small size, low cost, no vibration, noise, and long life.
The disadvantage is that the refrigeration efficiency is not high, the refrigeration temperature is affected by the ambient temperature, the refrigeration cannot reach below zero, and the capacity is small.
The other is a compressor car refrigerator. The compressor is the traditional technology of traditional refrigerators. The refrigeration temperature is low at -18 degrees and 10 degrees. High refrigeration efficiency, ability to make ice, keep fresh, and large size are the mainstream direction of the future development of car refrigerators.
However, such refrigerators are heavy, inconvenient to carry, and expensive. Compressors The main producing areas of compressors for automobile refrigerators in the world are Germany and Japan.