Toyota jidosha kabushiki kaisha (20240136871). ROTOR simplified abstract

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ROTOR

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Ken Jozaki of Toyota-shi (JP)

Toshinori Okochi of Toyota-shi (JP)

Yoshizumi Kitahara of Toyota-shi (JP)

Takahiro Odagi of Kariya-shi (JP)

Masayuki Ikemoto of Kariya-shi (JP)

ROTOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240136871 titled 'ROTOR

Simplified Explanation

The patent application describes a rotor for a motor that includes a rotor core with embedded permanent magnets and flux barriers, as well as grooves on the outer surface arranged symmetrically about the axis of the motor.

  • Rotor for a motor with embedded permanent magnets and flux barriers
  • Grooves on the outer surface of the rotor core arranged symmetrically about the axis

Potential Applications

The technology described in the patent application could be used in various types of electric motors, such as those used in electric vehicles, industrial machinery, and household appliances.

Problems Solved

This technology helps improve the efficiency and performance of electric motors by providing a more efficient magnetic flux path and reducing losses due to eddy currents.

Benefits

- Increased efficiency of electric motors - Improved performance and reliability - Reduced energy consumption

Potential Commercial Applications

- Electric vehicles - Industrial machinery - Household appliances

Possible Prior Art

One possible prior art for this technology could be the use of embedded permanent magnets in rotors for electric motors, which has been a common practice in the industry for improving motor efficiency and performance.

Unanswered Questions

How does the arrangement of grooves on the outer surface of the rotor core impact the overall performance of the motor?

The patent application mentions the symmetric arrangement of grooves, but it does not provide detailed information on how this design feature affects the motor's operation.

What specific materials are used for the rotor core and permanent magnets in this technology?

The patent application does not specify the materials used for the rotor core and permanent magnets, which could be crucial for understanding the overall performance and cost-effectiveness of the technology.


Original Abstract Submitted

a rotor used for a motor includes a rotor core, and a plurality of permanent magnets embedded in a corresponding plurality of embedding holes in the rotor core configured to include flux barriers at both ends of the plurality of embedding holes in the rotor core and to include a plurality of magnetic poles. the rotor core includes a plurality of grooves on an outer peripheral surface, the plurality of grooves, with the two paired grooves, are away from an axis that becomes the q-axis when the motor is operated, and are arranged symmetrically about the axis, and the rotor core has such a cross-section that a first angle between two lines passing through the two grooves and the center of the rotor core is smaller than a second angle between the axis-side end face of the two flux barriers adjacent to each other across the axis.