34cc/350V Electric Compressor for EVs

With the growing attention to environmental protection and CO2 emissions reduction, new energy vehicles are developing rapidly in the world. Pure electric vehicles and hybrid electric vehicles have been assigned a top priority in the further development of the worldwide new energy vehicle industry. Consequently, the needs for highly reliable and efficient electrically-driven compressors are also increasing, to match with the air conditioning system of electric vehicles.
 

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DQ34A350 Electric AC Compressor Basics

DQ34A350 electric compressor is dedicated designed by Guchen EAC Team. It is a 350 volt high-voltage air conditioner compressor with super high efficiency, providing sufficient thermal comfort to the passenger compartment of electric vehicles.
The electric air conditioner compressor mainly comprises a scroll compressor, an electric motor, and a drive controller. Scroll Compressor: adopting latest variable speed technology. It is used to compress R134a refrigerant of the HVAC system in electric vehicles.
Three-phase Electric Motor: During operation, the ac compressor is driven by brush-less permanent magnet motor which is integrated into the EV's high voltage network.
Drive Controller: the variable frequency drive controller controls the inverter to provide a variable speed for precise temperature control and high efficiency.
 

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Top Picks of DQ34A350 Electric A/C Compressor

◆ Broad scope of applications
The high voltage AC electric compressor can be used in a wide range of electric vehicles, including pure electric bus, electric cars, trolley buses, hybrid-electric transit buses. It is also a perfect match for thermal management in electric and hybrid vehicle battery systems.

◆ Extraordinary Efficiency
Energy consumption is one of the most important factors when deciding a purchase. In air conditioning industry, the improvement of efficiency in A/C compressor will directly determine whether customers will take it as a preferred choice or not. Our highly reliable electric compressor is generally known as improved efficiency compressor. It is with high performance and extraordinary efficiency, which can perfectly satisfy the growing demands of electric vehicle HVAC market nowadays.
  ◆ Fully Variable Speed Control
Intelligent speed control is a “must” in any optimized HVAC system in electric vehicles. A proper speed control of AC compressor insures a full variable adjustment of the cooling capacity on demand. DQ34A350 electric compressor is a variable speed compressor (the most advanced scroll technology), which combines intelligent system control with inverter variable speed operation to insure a continuous matching between the cooling capacity and the varying thermal load;
▽ operating with a wide range of control;
▽ providing premium thermal comfort for application in an electric vehicle air-conditioning system;
▽ providing energy savings;
▽ providing enhanced load matching capability.
You may be interested in 320V Electric Compressor, 380V Compressor.
 

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Components: Main and Functional 34cc 350V Electric Compressor's parts

 

F (bearing seat unit)	f1	bearing seat
	f2	bearing
	f3	cylindrical pin
	f4	wear plate

 

J (fixed scroll unit)	j1	fixed scroll
	j2	dowel pin
	j3	sealing ring
	j4	screen
	j5	exhaust valve
	j6	stopper
	j7	fastening screw

 

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Drive Port Definition of DC350V High Voltage Compressor

Connector	Terminals	Definition
High Voltage 2-pin (powertrain interface)	A	Positive terminal + of DC high voltage source	The connection between controller with power battery
	B	Negative terminal - of DC high voltage source
Low Voltage 6-pin (control signal interface)	P1	12V+	The connection between controller with low voltage control system
	P2	Start-stop signal input
	P3	PWM Speed control signal input
	P4	12V-
	P5	CAN-H
	P6	CAN-L

 

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Positive Feedback: On-site Installation Pictures by the Overseas Customer

   

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Video:

Model	DQ34A350
Refrigerant	R134a
Displacement (cc/rev)	34cc
Rated voltage / Power type	DC350V / DC 230V~405V
Speed range (rpm)	1000~6500
Communication protocal	CAN 2.0b or PWM
Operation Environment Temperature (℃)	-40~90
Oil Type	RL68H/120ml
Rated cooling Capacity (W)	5900
Rated power (W)	2700
Test Condition	Ps/Pd=0.3/1.5Mpa(A), SH/SC=10/5℃
compressor length (mm)	209
Suction diameter D1 (mm)	18.3
Discharge diameter D2 (mm)	15.5
Weight of the compressor (kg)	6.1