A compressor is a driven fluid machinery that elevates low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and then exhausts high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle, thereby achieving a refrigeration cycle of compression, condensation (heat release), expansion, and evaporation (heat absorption). A linear compressor uses the principle of magnetic levitation and a spiral ring fluid dynamics structure to compress gas and provide power for refrigeration. Compressors are divided into piston compressors, screw compressors, centrifugal compressors, linear compressors, etc. A piston compressor is generally composed of a shell, an electric motor, a cylinder body, a piston, control equipment (starter and thermal protector), and a cooling system. There are three cooling methods: oil cooling, air cooling, and natural cooling. Linear compressors do not have shafts, cylinder bodies, seals, and heat dissipation structures. The compressors of general household refrigerators and air conditioners are powered by single-phase AC power, and their structural principles are basically the same, but they use different refrigerants