20kW Water Cooled BLDC Motor for Electric Vehicle

This 20kW BLDC motor provides high power and consistent performance, perfect for a wide variety of electric vehicle applications, including go-karts, e-bikes, scooters, and mini scooters. The water-cooled system effectively manages heat, maintaining optimal operating temperature and extending brushless motor lifespan.

Specification

Features

 

• This 20kW brushless DC motor is engineered with a compact form, water-resistant protection, a durable stainless steel shaft, and an integrated self-cooling fan for reliable performance.
• The water-cooled design makes this BLDC motor straightforward to implement, eliminating the need for additional cooling equipment.
• When building an electric motorcycle with abundant natural airflow, a water-cooling system offers the most practical and efficient cooling solution.

Dimension (Unit: mm)

Applications

Electric Car

Golf Cart

Motorcycle

ATV

Q: What type of coolant works best for water-cooled BLDC motors in electric vehicles?

A: For electric vehicle water-cooled BLDC motors, a 50/50 mixture of high-purity deionized water and ethylene glycol (EG) is generally considered the best coolant. This blend provides an optimal balance of thermal performance, corrosion inhibition, and freeze protection.

Deionized water offers superior heat transfer properties, essential for managing motor heat under high loads. Ethylene glycol lowers the freezing point and raises the boiling point, ensuring operational stability in varying climates. Crucially, it also contains anti-corrosion additives that protect the aluminum housing, copper windings, and steel components within the BLDC motor and cooling loop from galvanic corrosion.

It is critical to use coolants specifically formulated for electrical applications and aluminum compatibility. Avoid conductive coolants or those lacking adequate corrosion inhibitors, as they can cause short circuits and irreversible damage to the brushless DC motor's internal components.