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Shanghai Hitachi launches high-efficiency compressors for energy saving trends
"Efficient Rare Earth NdFeB DC Inverter Compressor" is a technology development project implemented by Shanghai Hitachi Electric Co., Ltd. for the energy-saving development trend of the international refrigeration industry. The product of this project applies new rare earth materials, studies the magnetism, demagnetization, high temperature irreversible demagnetization of rare earth neodymium iron boron magnets, and corrosion resistance in high temperature, freon and refrigerating machine oil environment, and optimizes the design of motor stator and rotor magnetic circuit. To achieve the best magnetic flux distribution, develop a high-efficiency rare earth neodymium iron boron magnet motor; study the mechanical, leakage, inhalation, exhaust loss and clearance volume loss in the compression process of the compressor, and carry out the structure and size of the compressor components. Design and optimization. Studying the characteristics of rare earth motors, combined with the structural characteristics of the compressor, the motor and compressor are optimally matched, and the high-efficiency rare earth NdFeB DC inverter compressor is developed to meet the market demand for high-efficiency models. After the new product level inspection and expert review by the Shanghai Institute of Science and Technology Information, the product technology has reached the international advanced level. The products of this project are mainly used in household air conditioners and are the core components of energy-efficient air conditioners. It is especially suitable for the most advanced digital DC inverter high-efficiency household air conditioners to meet the demand of DC inverter high-efficiency compressors in the domestic air conditioner factory, thus meeting the demand for high-efficiency models in the international room air conditioner market.