18527495. ROTOR AND ROTATING ELECTRIC MACHINE simplified abstract (DENSO CORPORATION)

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ROTOR AND ROTATING ELECTRIC MACHINE

Organization Name

DENSO CORPORATION

Inventor(s)

Masahito Sakai of Kariya-city (JP)

ROTOR AND ROTATING ELECTRIC MACHINE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18527495 titled 'ROTOR AND ROTATING ELECTRIC MACHINE

Simplified Explanation

The rotor described in the patent application includes a rotor core with magnet-receiving holes formed in a folded shape, and permanent magnets embedded in these holes. The core sheets of the rotor core are laminated in an axial direction, with through-holes for magnets. The magnet-receiving holes are formed by overlapping through-holes of the core sheets, with irregular and non-irregular portions on the interior surfaces. The permanent magnets have engaging portions located in recesses of the irregular portions.

  • Rotor core with folded magnet-receiving holes
  • Permanent magnets embedded in the rotor core
  • Core sheets laminated in an axial direction with through-holes for magnets
  • Irregular and non-irregular portions in the magnet-receiving holes
  • Engaging portions of permanent magnets in recesses of irregular portions

Potential Applications

This technology could be applied in various electric machines and motors where efficient rotor designs are crucial.

Problems Solved

This innovation solves the problem of effectively embedding permanent magnets in a rotor core, ensuring stable and efficient operation of electric machines.

Benefits

The benefits of this technology include improved performance, increased efficiency, and enhanced durability of electric machines utilizing this rotor design.

Potential Commercial Applications

The potential commercial applications of this technology could be in electric vehicles, wind turbines, industrial machinery, and other applications requiring high-performance electric motors.

Possible Prior Art

One possible prior art could be rotor designs with permanent magnets embedded in a similar manner, but without the specific features of irregular and non-irregular portions in the magnet-receiving holes.

Unanswered Questions

How does this rotor design compare to traditional rotor designs in terms of efficiency and performance?

This article does not provide a direct comparison between this rotor design and traditional rotor designs in terms of efficiency and performance. Further research and testing would be needed to determine the specific advantages of this innovation over traditional designs.

What are the potential challenges in manufacturing rotors with this design on a large scale?

The article does not address the potential challenges in manufacturing rotors with this design on a large scale. Factors such as cost, scalability, and production efficiency could be important considerations in implementing this technology in mass production.


Original Abstract Submitted

A rotor includes: a rotor core having a plurality of magnet-receiving holes formed in a folded shape that is convex radially inward; and a plurality of permanent magnets embedded respectively in the magnet-receiving holes of the rotor core. The rotor core includes a plurality of core sheets that are laminated in an axial direction. Each of the core sheets has a plurality of through-holes for magnets. The magnet-receiving holes of the rotor core are constituted of those of the through-holes of the axially-laminated core sheets which overlap each other in the axial direction. Interior surfaces of the magnet-receiving holes have irregular portions each of which is formed by a difference in position between peripheral edges of the axially-overlapping through-holes, and non-irregular portions where none of the irregular portions are formed. The permanent magnets have engaging portions located respectively in recesses of the irregular portions.