Among our natural resources, water and the sun are our common natural resources. We need water every day, and then the sun. When it’s sunny, we can use solar energy to dry clothes and so on, and solar energy is our There are really many uses in daily life. For example, the most familiar solar water heater uses solar energy to convert heat and electricity to produce hot water. Now, with the Solar DC Freezer , it can make us more energy-saving when using the refrigerator. So how does solar energy realize electricity conversion?

Solar semiconductor refrigeration. Solar semi-conductor refrigeration is a special refrigeration method that uses electric energy generated by solar cells to supply semi-conductor refrigeration devices to realize heat transfer. The theoretical basis of semi-conductor refrigeration is the thermoelectric effect of solids, that is, when direct current passes through a circuit composed of two different conductive materials, heat absorption or exotherm will occur at the junction. How to improve the performance of materials and find more ideal materials has become an important issue for solar semiconductor refrigeration. Solar semiconductor refrigeration is widely used as a cooler for electronic devices and instruments in the fields of national defense, scientific research, medical and health, or used in low-temperature measuring instruments and equipment, or making small thermostats. At present, the efficiency of solar semiconductor refrigeration devices is still relatively low. The COP is generally about 0.2 to 0.3, which is much lower than compression refrigeration.

The level of science and technology in China has been continuously improving, which has brought great convenience to people’s study and life. In recent years, the development of China freezer is very fast, which is inseparable from the progress of science and technology in my country.