On April 8, 2024, GMCC and Welling, system level solution suppliers of core components for consumer electrical appliances, presented their core component products and system level solutions such as compressors, motors, chips, valves and other core components used in multiple scenarios such as household refrigeration and heating, commercial refrigeration and mobile refrigeration at 2024 China Refrigeration Exhibition. And released three new products of integrated variable frequency rotor compressor, commercial miniaturized high-efficiency variable frequency scroll compressor, and ultra-quiet heat pump heating compressor, with nuclear “core” technology to help heating and cooling terminal products to improve miniaturization, high energy efficiency, ultra-quiet and green environmental protection.

XVR19 6U-VME-SBC Meizi Integrated variable frequency rotor compressors use the industry’s disruptive integrated reservoir lower structure to ensure energy efficiency while achieving extreme miniaturization. The product width is reduced by 20% compared with the mainstream products in the industry, and the air conditioning loading capacity is effectively increased by 25%. The use of refrigerant heat insulation technology to increase COP by 3%, and the heating/cooling capacity of air conditioning is further increased by 2% to 3%; At the same time, the gas-liquid two-phase control technology can reduce the suction pressure loss by 50%, which is more efficient and energy saving. The anti-gravity oil return technology improves reliability, and can run continuously for 3,500 hours under extreme conditions. This product has achieved up to 97 patent results, with a very original small integration advantages for home air conditioning products compact, efficient enabling.

Meizi ultra-quiet heat pump heating compressor fully meets the global sustainable background of green and low-carbon heat pump heating needs, with the first ultra-high solid frequency welding bracket, shafting balance coefficient improvement, cavity resonance frequency shift technology, motor fundamental wave electromagnetic force optimization technology four quiet and low noise key technologies, to achieve the core frequency segment noise amplitude reduction; For the operation problems in low temperature environment, Meizi ultra-quiet heat pump heating compressor with ultra-wide operating range design and high reliability bearing technology to achieve excellent heating performance at -35℃ ultra-low ring temperature, can meet the low ring temperature 75℃ outlet temperature requirements, while the maximum condensation temperature of 83℃, the maximum compression ratio of 17.

XVR19 6U-VME-SBC

With the advantages of “small shell diameter, large heart, super core”, Meizhi Commercial miniaturized high-efficiency variable frequency scroll compressor breaks through the status quo of the industry, achieving first-level energy efficiency of multi-line air conditioning systems, full frequency band quiet and flexible layout. Compared with the previous generation of variable frequency scroll products, this new product is 28% smaller and 27.6% heavier per unit capacity; The highly efficient adaptive asymmetric structure improves COP by 4.2% (60rps), OCR by 25% (120rps), and motor and mechanical efficiency by 2%. The all-band active noise reduction design can control the operating noise within 59 dB; At the same time, the enthalpy pressure pulsation and counter-flow are eliminated from the source to improve the reliability of the whole chain of products, and the allowable stress of pipeline operation is increased by 240%.

High efficiency, low noise, Meizhi, Welling system level heating and cooling solutions enable comfortable life

XVR19 6U-VME-SBC In line with the high-end, intelligent and green upgrading direction of the HVAC industry, Meizhi and Weiling exhibited a variety of core products and solutions around the application scenarios of household refrigeration heating, commercial refrigeration heating, mobile refrigeration, etc. Four of the products won the “Innovative Product” award of this year’s China Refrigeration Exhibition.

For example, in the field of commercial air conditioning, Meizhi 12-16HP multi-air conditioning variable frequency rotor compressor and the newly released Meizhi ultra-quiet heat pump heating compressor have won this honor, and achieve strong output at a speed of up to 140Hz, with advantages such as high energy efficiency and low noise, enabling strong and fast cooling of commercial air conditioners. In the field of mobile refrigeration, Meizhi vehicle miniature DC inverter compressor has the advantages of extreme low noise, miniaturization and high reliability, and can be widely used in mobile vehicle scenes such as vehicle refrigerator, RV refrigerator, medical box, portable box, etc. In the motor and water pump and other products, Weiling with comprehensive performance upgrade motor, water pump technology for air conditioning, heat pump inject strong power, Weiling green high-quality thin permanent magnet motor using thin lightweight technology to improve material utilization, while quiet technology to reduce the motor operating noise, and a number of reliability technology optimization to ensure stable and reliable operation of the motor. Outstanding performance is recognized by the “Innovative Product” award.

Adhering to the “technology drives everything”, Meizhi and Welling deeply understand the needs and changes of the HVAC and refrigeration market, and provide comfortable and convenient life and work experience for end customers with continuous breakthroughs in core technology, innovative products, and lean manufacturing level. Facing the future, Meizhi and Welling will shoulder the responsibility of industry leaders and continue to contribute to the green, efficient and intelligent development of the global HVAC and refrigeration industry.