Electric Automotive AC Compressor For BTMS
Product Description
The electric compressor (commonly referred to as an E-compressor) is a core component of the thermal management systems in new energy vehicles (including battery electric, hybrid, and fuel cell vehicles).
Unlike the belt-driven compressors found in traditional internal combustion engine vehicles, electric compressors are powered directly by a high-voltage battery pack. They integrate a permanent magnet brushless motor with a built-in inverter; the inverter converts high-voltage direct current (DC) into alternating current (AC) to drive the motor and adjusts the operating speed based on commands from the vehicle control unit or the air conditioning controller.
Most electric compressors utilize a scroll-type compression mechanism to compress refrigerants—such as R1234yf or R134a—within the housing. The motor is cooled by the circulating refrigerant. Additionally, the unit features an oil separation mechanism to minimize the amount of lubricating oil entering the heat exchange circuit, thereby preventing a decline in heat exchange performance.
Product Advantage
1. Cabin air conditioning (cooling)
2. Heat pump heating: Extracts heat from ambient air, the battery, or waste heat from the electric drive system during low-temperature conditions; reduces energy consumption and extends vehicle range compared to PTC heaters
3. Battery thermal management: Cools and preheats the traction battery during normal operation and fast charging
4. Temperature control for the electric drive and electronic control systems
Product Parameter
| Compessor style | Electric scroll compressor |
| Refrigerant | R134a/HF01234-yf |
| Displacement | 34cm3/rev |
| Normal speed | 1000-8500rpm |
| Max. speed at rated voltage | 8500rpm |
| Evaporat ing normal temperature | -15-21℃ |
| Condens ing temperature | +18-75℃ |
| Compressor cool ing method | Suction cooling |
| Refrigerant leakage rate | ≤14g/y |
| Refrigeration oil | POE68 120CC(System adapt ion is cal ibrated by the customer) |
| Appearance | Cast aluminum surface sandblasted |
| Total weight | 6.0kg~6.4kg |
| Suction port inner size | 18.3mm |
| Exhaust port inner size | 15.5mm |
Performance Curve
System Recommendations
| High pressure protection(absolute pressure) | Index |
| High pressure protection (absolute pressure) |
Higher than 2.8MPa disconnect,2.6MPa recovery (depend ing on customer requirements) |
| Low pressure protection (absolute pressure) |
Will disconnect below 0.07MPa, and the recovery depends on the rise rate of suction pressure. It is recommended to take a certain t imedelay to avoid noise prob lems as much as possible. (subject to customer requirements) |
| Maximum suction temperature | < 30 ℃ (ambient temperature 120℃) |
| Refrigerant Oil | 120mL (depending on OCR calibration result of air conditioning system) |
| Water res idue content | 75PPM Max. |
| Dust content | 25mg Max |
| Suction and exhaust connection torque | The torque of the compression bolt of the suction and exhaust port of the compressor is 11 ±1 N ·M |
| Start ingtemperature | -15℃ < ambient temperature < overtemperature protection point, Pd <20bar |
| OCR Requirement | 1500-3000rpm >1% ,3000-6000rpm >2% , 6000- 8000rpm >3% |
| upper l imit of discharge port | 125℃ |
| Suct ion dryness of the compressor in continuous operation | > 90% |
Company Profile
