Product Overview
The permanent magnet synchronous motor for electric vehicles is a high-performance drive device based on liquid cooling technology and rare earth permanent magnet materials. It is designed for applications requiring high torque, efficient heat dissipation, and wide load adaptability. Its core advantages lie in high power density, low energy consumption, and precise control. It is suitable for applications in new energy vehicles, industrial automation, wind power generation, and other fields. This motor meets the requirements of China's national standard GB 30253-2020 for high-efficiency motors and has passed the CQC China Energy Conservation Certification.
Core Advantages
High Torque and Wide Speed Range
The power range covers 5.5kW-2000kW, with a rated speed of 400-10,000rpm. Peak torque can reach over three times that of traditional motors (for example, the QLS132P model has a rated torque of 131Nm with zero peak torque loss).
The multi-pole design (e.g., 8-pole and 48-pole) and disc structure shorten the magnetic field path, improve torque output, and adapt to dynamic load requirements.
High Efficiency and Energy Saving, Liquid Cooling
Efficiency reaches IE5 (Level 1 Energy Efficiency), with a high-efficiency range covering 25%-120% load, saving 12%-20% energy compared to traditional asynchronous motors.
Liquid cooling technologies such as cold plates and immersion cooling achieve efficient heat transfer, reducing winding temperatures by over 30%. It supports high-frequency operation (5-50Hz) while maintaining over 95% efficiency.
Reliability and Adaptability
Insulation classes F/H (155°C/180°C) and protection levels IP55-IP68 are suitable for high-temperature, high-humidity, and dusty environments.
The modular design supports power expansion (e.g., cascading to MW-level output), and the mounting dimensions are compliant with international standards (IEC and NEMA).
Precise Control and Dynamic Response
Supports vector control and direct torque control, with torque ripple ≤1% and position control accuracy ±0.01°.
The low moment of inertia design reduces acceleration time to one-third that of traditional motors, and enables peak torque to reach over five times the rated value.
Certification and Standards
Passed Level 1 certification for GB 30253-2020 "Limited Values and Energy Efficiency Grades for Permanent Magnet Synchronous Motors," and complies with the IEC 60034-30-1 international standard.
Application Scenarios
New Energy Vehicles
The main drive motor has a power density of ≥3kW/kg and an integrated liquid cooling system, delivering continuous high torque and increasing range by 15%-20% (e.g., a Green Source liquid-cooled electric vehicle has achieved zero wear and tear over 50,000 kilometers).
Industrial Automation
For high-load scenarios such as mining machinery and steel mills, the unit boasts 800kW power and direct-drive reels, eliminating the need for a reducer and improving transmission efficiency by 18%.
Data Centers and Energy Storage
Liquid-cooled temperature control units (such as TCL and EK products) have a PUE <1.06, support immersion cooling, and achieve annual energy savings of over 40%. They have received the first batch of CQC energy-saving certifications.
Honor And Qualification
The company holds over 80 patents and 18 provincial-level industrial new products. It is certified to ISO9001 for quality, ISO14001:2015 for environmental, and ISO45001 for occupational health. Its products are certified to China 3C, US UL, Canadian CUL, Australian SAA, and EU CE and ROHS.
Application Areas
Textile Industry
① Motors for circulation fans in textile printing and dyeing machines.
② Motors for textile texturing machines.
Industry and Energy
① Mining/Steel Mill Equipment: Single units with power up to 260kW, cascading to MW-class, suitable for direct-drive systems.
② Breeze Power Generation: Low wind speed start-up (force 3) with a wide high-efficiency range, suitable for small and medium-sized wind turbines.
High-End Equipment
① Robotic Joints: High torque density and precise control, supporting integrated harmonic reduction design.
② Aerospace: Lightweight and high power density meet the requirements of drones and electric aircraft.
Case
Case 1
- Location: Daqing Oilfield
- Motor Model: JNPM520-30-255
- Key Parameters:
- Power: 30 kW
- Torque: 1,123 N·m
- Speed: 255 RPM
Case 2
- Location: Daqing Oilfield
- Motor Model: JNPM290-30
- Power: 30kW
- Torque: 286N ·m
- Speed: 1000 RPM
Case 3
- Location: Production equipment for textile printing and dyeing factories
- Motor Model: JNPM173-7.5
- Key Parameters:
- Power: 7.5kW
- Torque: 49 N·m
- Speed: 1450 RPM
The company is committed to building its brand. Through years of hard work, its "Weidi" trademark has been recognized as a "Famous Trademark of Zhejiang Province" and its "Weidi" brand motors have been designated as "Famous Brand Products of Hangzhou." The company has also been recognized as a "Science and Technology Enterprise of Zhejiang Province," a "Patent Demonstration Enterprise of Zhejiang Province," a "Made-in-Zhejiang Product," a "Specialized, Specialized, and Innovative Enterprise of Zhejiang Province," a "National High-Tech Enterprise," and a "National Intellectual Property Advantage Enterprise." It also has established a provincial-level enterprise research institute.
The company actively leverages customer support and its own efforts to continuously improve product quality, enhance product visibility and reputation, and further develop its expertise, strength, and scale in the high-end equipment and smart home motor industries.
FAQ
Hot Tags: permanent magnet synchronous motor for electric vehicle, China permanent magnet synchronous motor for electric vehicle manufacturers, suppliers, factory, 380v permanent magnet motor, pmsm motor for electric vehicles, 7 5kw 380v Pmsm Motors, 380v 30kw 3 Phase Pmsm Motors, permanent magnet synchronous electric motors, ac synchronous permanent magnet electric motor
