Refrigerator is a kind of refrigeration machine. It is because of it that it has increased the shelf life of our food. Many people just know that a plug-in refrigerator has started to operate, so how many people know how the refrigerator works . The omnipotent Xiaobian came to bring you all the working principles of all kinds of refrigerators. The working principle of all kinds of refrigerators : 1. Compressed refrigerator: This type of refrigerator provides mechanical energy from an electric motor and works on the refrigeration system through a compressor. The refrigeration system is made using a low boiling point refrigerant that absorbs heat during vaporization. The advantage is that the life is long and the use is convenient. At present, 91 to 95% of the refrigerators in the world belong to this category. At present, the commonly used refrigerator uses a refrigerant called R600a as a hot "porter" to "handle" the "hot" in the refrigerator to the outside of the refrigerator. 2. Absorption refrigerator: This kind of refrigerator can use heat source (such as gas, kerosene, electricity, etc.) as power. The ammonia-water-hydrogen mixed solution is used for the purpose of cooling in the continuous absorption-diffusion process. Its shortcomings are low efficiency, slow cooling, and it has gradually been eliminated. 3, semiconductor refrigerator: It is the use of the PN-type semiconductor, through the direct current, the principle of the Peltier effect on the junction to achieve refrigeration. 4. Chemical refrigerator: It is a refrigerator that uses some chemicals to absorb heat when it absorbs heat. 5. Electromagnetic vibrating refrigerator: It is a refrigerator that uses electromagnetic vibration machine as the power to drive the compressor. The principle and structure are basically the same as those of a compression refrigerator. 6. Solar refrigerator: It is a refrigerator that uses solar energy as a cooling energy source. It is because of the refrigerator that can eat iced ice cream on a hot summer day, which shows how the refrigerator works and the freezing technology is so powerful. Ningbo XISXI E-commerce Co., Ltd , https://www.petspetstoys.com