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72v electric automotive air conditioning compressor
Guchen 72V electric ac compressor
72v electric air conditioning compressor

Heat Pump 20cc/72V Compressor for No-Idle AC System

Low Voltage Electric Compressor
Displacement (cc/rev):
Max cooling Capacity (KW):
Max cooling input power:
Max electric current(A):
Technical Data
The heat pump is a refrigeration system that uses the heat released by the condenser to heat the regulated environment. The heat pump type electric vehicle air-conditioning compressor GCH20A72 developed by Guchen has the advantages of compact structure, intelligent speed regulation, low noise and high efficiency, safety and reliability. This product is suitable for all cars with DC72V DC power supply.
Outstanding feature of Low Voltage Electric Compressor
Integrated structure: Scroll compressor, permanent magnet brushless DC motor, drive controller is composed of 3 parts, the motor and drive controller get a cryogenic gas refrigerant for good cooling.
Oil separator mechanism: The refrigerated oil is separated from the gas refrigerant in the oil separator, circulates in the compressor, improves lubrication, reduces the heat exchanger resistance of the air conditioning system, and increases the refrigerating capacity of the air conditioning system by 5-10%.
Ring pin anti-rotation mechanism: simple structure, high reliability, low noise, low cost.
Vortex profile with variable cross section: thick inner wall, high compressive strength, thin outer wall, the displacement can be made larger under the same vortex height.
Aluminium light-weight construction, compact scroll compressor, this can save the vehicle space, easy installation, also save material and reduce power consumption.
Robust designed, long-lasting electromotor, reliability performance, and the vehicle air-conditioning compressor can operate in the harsh conditions.
Have a good shock resistance performance, the vehicle can bump on the rough roads and it would not damage the vehicle air conditioning.
A large speed range, the compressor have a greater cooling capacity and higher efficiency whatever the compressor in any conditions.
The refrigeration compressor with very economical, and have a long service life.
Low Voltage Electric Compressor Application
Guchen low voltage electric compressor is mainly used in
Car air conditioner
Van air conditioner
Construction machine air conditioner
Tractor air conditioner
Truck air conditioner
Commercial vehicles air conditioner etc.
It is universal operation with all coolants generally used in mobile applications
Main and functional compressor’s parts

GCH20A72AB Electric Compressor for Van Air Conditioner
GCH20A72AB Vehicle Compressor is mainly suitable for van, ambulance , commercial vehicles and the swept volume of GCH20A72AB compressor is 27 cm3.
Model GCH20A72AB
Basic Data
Displacement (cc/rev) 20
max cooling Capacity (KW) 4.5
Max cooling input power 1.6
Max  electric current(A) 5
Speed range (rpm) 1000~6000rpm
Max heating capacity(kw) 5.8
Max heating input power 1.5
Refrigerant R134a
Oil Type RL68H(POE OIL)
Rated voltage / Power range DC320V/DC200~400V
Safety voltage ≤DC95V
Speed control model PWM speed
Safety function Undervoltage, overvoltage, overcurrent and overtemperature
Weight(kg) 6.3
Suction pressure 0.20~0.45MPa
Exhaust pressure ≤2.5 MPa
System oil volume 8%~12% of the Refrigerant
Water content ≤100ppm
Protection grade IP67
Soft start time 15s
Drive method Sine wave
Driver Main Data Driver Main Data
type of cooling Suction cooling
electromotor control mode No position sensor, sinusoidal drive
Rated bus current 25A
Phase line overcurrent protection current 8A±2A
Withstand voltage 200VAC,1min,No breakdown、flashing
Insulation Resistance 200VAC,1min,No breakdown、flashing
Operation Environment Temperature (℃) -10~+65℃
Store Environment Temperature (℃) -40~+85℃
Electromotor main data Electromotor main data
motor type Permanent magnet brushless DC motor
Poles/slots 6 poles / 10 slots
Stator winding connection Three-phase Y
withstand voltage 2000VAC,1min,No breakdown、flashing
 insulation resistance  >50MΩ(No refrigerant in the compressor)
>20MΩ(refrigerant in the compressor)
Extreme conditions
voltage(DCV) rotate speed(RPM) Exhaust limit allowable pressure
320(rated) 1000-6000 2.5MPa
400(Voltage HI Limit) 1000-6000 2.5MPa
200(Voltage Low Limit) 1000-1500 2.0Mpa
High Voltage Electric Compressor Overview

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