Rotor type compressor suitable for high-speed rotation

Abstract

The invention belongs to a technique of a refrigeration compressor, and particularly relates to a rotor-type compressor suitable for high-speed rotation. The rotor-type compressor suitable for the high-speed rotation comprises an upper housing component (1), an upper supporting seat component (2), a motor (3), a pump body (4) and a barrel body component (5). The upper housing component (1) and the barrel body component (5) are connected and fixed to be a whole; a crankshaft (42) is arranged in the barrel body component (5); the motor (3) is connected onto the crankshaft (42) in a sleeving manner. The pump body (4) is connected onto the crankshaft (42) in the sleeving manner; the pump body is connected with the upper supporting seat component (2) and an upper cover (41) of the pump body through the crankshaft; the connection of the pump body and the barrel body component (5) to be a whole is realized, wherein, in four kinematic pairs of the pump body, three adopt needle bearings, and one adopts a self-aligning rolling bearing. Rolling-friction kinematic pair structures are adopted for the rotor-type compressor; use requirement of a high rotational speed and high impact are effectively met; the rotor-type compressor is enabled to be capable of being applicable to a high-rotational-speed refrigeration application occasion.

Description

technical field [0001] The invention belongs to the technology of refrigeration compressors, in particular to a rotor compressor suitable for high-speed rotation. Background technique [0002] In on-board refrigeration applications, it is required to reduce the weight of the refrigeration system as much as possible to meet the requirements of on-board refrigeration applications under certain refrigeration capacity conditions. The cooling-to-weight ratio of conventional rotary compressors for air conditioners is about 0.22kW / kg; while the on-board refrigeration system requires the cooling-to-weight ratio of the compressor to be at least 0.55kW / kg. [0003] In the application field of air conditioning and heating, when the ambient temperature is lower than 0°C, the heating capacity of the household air conditioner begins to decline significantly. And when the ambient temperature is lower than -15°C, the heating capacity of the household air conditioner can hardly reflect the ...

AI Technical Summary

Problems solved by technology

However, due to the limitation of its maximum speed, when the ambient temperature is too low (below 15°C), the capacity improvement brought about by the increase of the speed is not enough to meet the capacity requirements of low-temperature heating

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