Curved poles rotor with agglomerated permanent magnets for synchronic three-phase motors, increasing torque and performance more than a 20% against known electric motors with rectangular poles.
New and innovative aspects
The circular arch shape of the permanent magnets layout of the new rotor, improves the reluctant component of the torque, forming a double layer magnetic field.
Moreover, the use of rare earth elements powder agglomerated magnets (elements like cerium, yttrium or neodymium) results energy values similar to those obtained with known sintered magnets.
Main advantages of its use
Specifications
Permanent magnets rotor for use in synchronic three-phase motors for hybrid vehicles. There are two magnetic layers in the rotors that generates the motor action, disposed as an arch of a circular segment geometrically optimized, improving the reluctant and magnetic components of the torque.
To set both magnetic layers, rare earth elements powder agglomerated magnets are used, instead of sintered ones, allowing different geometry that improves the reluctant torque. The magnets used are made with agglomerate materials, conforming magnets with less materials and similar energy values than does used currently.
The combination of the double magnetic layer and the characteristics of the new magnets, the new rotor obtains a 20% more torque than known rotors. The weight of the motor, its cost, and the economical loses are also reduced.
Applications
Electric motors for hybrid and plug-in vehicles.
Intellectual property status
Protected by patent P20173042.
Current development status
In use, test results available.
Desired business relationship
Commercial agreement; License agreement; Technical cooperation: further development; Technical cooperation: testing new applications; Technical cooperation: adaptation to specific needs.
The aim of the The Technology Transfer Office (TTO) of the Univesidad de Burgos is to promote Innovation technology through the reseach results transfer and the conexions between the University and the new needs and requirements of the society - we are the link between the University and the Industry. Contact person: José Manuel López (jmllopez@ubu.es)
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