Patent ID: 9018810
Filing Date: 2015-04-28
Classification: H02H,H02K,H02P

Abstract:
1. A stator for a brushless, electronically commutated electric motor comprising a stator core wound with stator windings and control electronics to control the stator windings, the stator core together with the stator windings being enclosed in a molded encapsulation made of a plastic material of a defined thermal conductivity (λ St ), a temperature sensor being arranged outside at the encapsulation, and the control electronics being configured to calculate the temperature in the region of the stator windings on the basis of the temperature detected by the temperature sensor taking into account a specific, empirically determined temperature profile of the stator stored in a memory, the temperature profile taking into account at least the thermal conductivity λ st and thermal resistance R Th1 of the molded encapsulation.