What is the principle of crystal coffin refrigeration?

The crystal coffin, the ice coffin, which is viewed from the outside includes a coffin cover and a box, and the coffin cover is composed of a double-layer PC endurance board. There are flowers on the inside and colorful lights surround it. The box is composed of an outer box and an inner box. The outer box is mainly made of metal materials. Crystal coffin, ice coffin is not a "machine to make cold air", but a device used to absorb the heat inside the coffin. It uses a liquid called a "refrigerant" to "extract" the heat inside the coffin and transfer it to the outside of the crystal coffin, the ice coffin. The inner refrigeration system mainly includes compressor, condenser, evaporator and other parts. The three main parts work together to achieve the cooling results, thus ensuring that the temperature on the inside of the machine is low and the body does not rot.