4. Conclusions

The two thermal studies reported in this document enable us to prioritize the different ways of evacuating the dissipation generated in an asynchronous electric motor. Comparing the thermal state of an open motor and that of a closed motor, we note the major impact of convective exchanges in the former, and the much lesser but not negligible role of internal convective exchanges in the latter. Conversely, while material properties (see tables 5 and 6 ) and contacts between the various components have a relatively modest influence on the thermal state of an open engine, local temperature variations are of major importance in the case of a closed engine. Although they cannot be generalized to any great extent, the remarks made in this report do point to potential ways of...