The freezer can be said to be a product that can be found in major supermarkets or markets. In the homes of many families, freezers are also chosen instead of refrigerators. Freezers are the same as refrigerators, and there are many special types. Today we will talk about the DC freezer .

The name DC freezer knows that it uses direct current instead of alternating current. Most household refrigerators use alternating current, but the direct current has advantages over alternating current. For the market or factory, the use of direct current is much more convenient and energy-saving than the use of alternating current. Most of the use of DC freezer has specific requirements for temperature, and this type is suitable for large-area storage, so it is not very suitable for home use, except for delicate homes.

Direct current is also called constant current. Constant current is a type of direct current. Constant current means that the size (voltage level) and direction (positive and negative) do not change with time (within a relative range), such as dry batteries. Therefore, the temperature can be kept constant.

Not only the DC freezer, but many big size freezer also choose to use direct current.