Research On The Development For Automotive HVAC Compressor Of Thermal/Electric Double Power

Generally,most of automotive HVAC use the engine as the power source,but it is more than fifteen percent of fuel consumption compared to no HVAC,and thus how to reduce energy consumption of automotive HVAC has become another key issue of energy saving.At the same time,the mode of power source is towing by engine,so when the vehicle is shut down the automotive HVAC will not work.It is serious issue when the occupants get on the vehicle which was under the sun for quite a long time.So,it is necessary to develop an automotive HVAC compressor that provides a comfortable driving environment and energy saving.The thermal/electric double power compressor of this thesis is a new product that has not appeared in the market.The main idea is to put motor-drive compressor and engine-drive compressor integrated as a whole and formation of a new compressor by switching between the engine drive mode and the electric drive mode,so as to achieve the purpose of saving energy.When in the engine drive mode the friction plate and the clutch of compressor is pull,the compressor worked by the engine through a belt,at this time the engine is load.When in the electric drive mode,energy from the battery to the motor,and then provide power for compressor,at this time the friction plate does not pull with the clutch,so the engine is no-load.The double power compressor of this thesis is based on OX-60A-1,one of scroll compressors,and some specific design thoughts and ideas have been proposed for it,include the main scroll part,the cover part,the motor part and the eccentric shaft.Then,parts modeling and virtual assembly have been carried out for the double power compressor with two-dimensional and three-dimensional software.Finally,compressor bench test and vehicle automotive HVAC simulation test have been conducted for the double power compressor.Test results show that the double power compressor work well,and all kinds of performance can reach the standard.And this research provides test basis for the thermal/electric double power compressor application on the vehicle.