MobilityElectrification
High heat resistance and high insulation thermosetting resin
improves functionality and reliability of electric power train.
- TOP
- Electrification
- Molding Compound for Stator Coil Encapsulation
Molding Compound for Stator Coil Encapsulation
and improving the functionality
for EV/HEV drive motors.
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
