Advantage

• Replaces insulation paper by molding layer of 150-300 micron thickness.
• Excellent narrow space filling(filling coil gap).
• Good Environmental resistance by encapsulation.
• High thermal conductivity grade available.

* Suitable not only for drive motors, but also for auxiliary motors and axial gap motors!

Conventional process

Insulating paper + liquid resin immersion, etc.

Proposed process

Encapsule with epoxy molding compound

Image of cross section of stator coil

Conventional process

No filling of coil gap

Proposed process

Filling of coil gap

Cooling effect (150kW simulation)

Efficiently dissipation of the heat generated in the coil → Coil temperature reduction

Simulation conditions

Inside heat：110 [W/slot]
Coolant：Ethylene glycol water 50%
Input flow rate：0.6 (kg/min)/slot]
Liquid temperature：65 [℃]

Conventional process

Around coil : No filling >200°C
　

Proposed process

Filling with 1W/mK Compound 164°C