EV Air Conditioning System |
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An electric air conditioning system is meant to replace
stock system running off of internal combustion engine. Featured A/C consists of the
R134a refrigirant compressor coupled with variable speed brushless direct current (BLDC)
motor integrated in one physical unit. The motor is run by an inverter fed directly from
high voltage traction battery. Supporting stock components (A/C radiator, consenser and
plumbing) are retained or replaced with similar type fitting the vehicle. This system is an alternative to run stock compressor with external AC electric motor fed from small inverter (or sometimes DC motor run straight from the traction pack if system voltage is in its working range). Inverter will take up to 450 VDC input and BLDC motor is meant for up to 300VDC operation. The compressor speed is controlled by 0...5V analog voltage on the inverter's speed control input. Manufactured by Masterflux. 1 year warranty. |
Main electrical
characteristics:
| Inverter | ||
| Nominal voltage | 135-300V |
120-420 VDC nom. |
| Absolute maximum voltage (range) | 300V |
0...450 VDC |
| Evaporator temperature range | -12 'C...12.8 'C |
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| Condenser temperature range | -26.7'C...65.6 'C |
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| Max discharge temperature | 130 'C |
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| Max compression ratio | 8:1 |
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| Max RPM | 6500 |
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| Dimensions and weight | 150 mm x 195 mm x 210 mm, 4.5 kg |
254 mm x 150 mm x 93 mm, 1.1 kg |