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US 2008/0258573 A1Published application
Rotor of Rotating Electric Machine, Rotating Electric Machine and Vehicle Drive Apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMunehiro Kamiya
Life of this patent
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Abstract
There are provided a rotor of a rotating electric machine that can implement high-speed rotations with improved energy efficiency, as well as the rotating electric machine and a vehicle drive apparatus. The rotor of the rotating electric machine includes two magnets arranged within an electrical angle in the range of 127° to 140°, the electrical angle having its center at the center of rotations of the rotor, and the magnets being arranged along a V-shape with its acute end facing toward the center of rotations. The rotor further includes a rotor body having two openings housing the two magnets respectively. The rotor body has a support portion placed at the acute end of the V-shape and serving as a partition between the two openings.
Claims14
A rotor of a rotating electric machine, comprising:
- a first magnet and a second magnet arranged within an electrical angle in the range of 127° to 140°, the electrical angle having its center at the center of rotations of the rotor, and said magnets being arranged along a V-shape with its acute end facing toward the center of rotations;
- and
- a rotor body having a first opening and a second opening housing said first magnet and said second magnet respectively, said rotor body having a support portion placed at the acute end of said V-shape and serving as a partition between said first opening and said second opening.
A rotating electric machine, comprising:
- a stator;
- and
- a rotor,
- said rotor including:
- a first magnet and a second magnet arranged within an electrical angle in the range of 127° to 140°, the electrical angle having its center at the center of rotations of the rotor, and said magnets being arranged along a V-shape with its acute end facing toward the center of rotations;
- and
- a rotor body having a first opening and a second opening housing said first magnet and said second magnet respectively, said rotor body having a support portion placed at the acute end of said V-shape and serving as a partition between said first opening and said second opening.
4 more elements
A vehicle drive apparatus, comprising:
- a first rotating electric machine;
- a reduction mechanism connected to a rotational shaft of said first rotating electric machine;
- and
- an axle rotating according to rotations of the rotational shaft reduced in speed by said reduction mechanism,
- said first rotating electric machine including:
- a stator;
- and
- a rotor, and
- said rotor including:
- a first magnet and a second magnet arranged within an electrical angle in the range of 127° to 140°, the electrical angle having its center at the center of rotations of the rotor, and said magnets being arranged along a V-shape with its acute end facing toward the center of rotations;
- and
- a rotor body having a first opening and a second opening housing said first magnet and said second magnet respectively, said rotor body having a support portion placed at the acute end of said V-shape and serving as a partition between said first opening and said second opening.
9 more elements
A vehicle drive apparatus, comprising:
- a first rotating electric machine;
- a reduction mechanism connected to a rotational shaft of said first rotating electric machine;
- an axle rotating according to rotations of the rotational shaft reduced in speed by said reduction mechanism;
- an engine;
- a second rotating electric machine;
- and
- a power split device splitting motive power between said reduction mechanism, said engine and said second rotating electric machine,
- said reduction mechanism having a reduction gear ratio of at least two to one between said first rotating electric machine and said power split device.
5 more elements
A rotor of a rotating electric machine, comprising:
- a first magnet and a second magnet arranged within an electrical angle in the range of 127° to 140°, the electrical angle having its center at the center of rotations of the rotor, and said magnets being arranged along a V-shape with its acute end facing toward the center of rotations;
- and
- a rotor body having a first opening and a second opening housing said first magnet and said second magnet respectively, said rotor body having support means placed at the acute end of said V-shape for serving as a partition between said first opening and said second opening.
A rotating electric machine, comprising:
- a stator;
- and
- a rotor,
- said rotor including:
- a first magnet and a second magnet arranged within an electrical angle in the range of 127° to 140°, the electrical angle having its center at the center of rotations of the rotor, and said magnets being arranged along a V-shape with its acute end facing toward the center of rotations;
- and
- a rotor body having a first opening and a second opening housing said first magnet and said second magnet respectively, said rotor body having support means placed at the acute end of said V-shape for serving as a partition between said first opening and said second opening.
4 more elements
A vehicle drive apparatus, comprising:
- a first rotating electric machine;
- a reduction mechanism connected to a rotational shaft of said first rotating electric machine;
- and
- an axle rotating according to rotations of the rotational shaft reduced in speed by said reduction mechanism,
- said first rotating electric machine including:
- a stator;
- and
- a rotor, and
- said rotor including:
- a first magnet and a second magnet arranged within an electrical angle in the range of 127° to 140°, the electrical angle having its center at the center of rotations of the rotor, and said magnets being arranged along a V-shape with its acute end facing toward the center of rotations;
- and
- a rotor body having a first opening and a second opening housing said first magnet and said second magnet respectively, said rotor body having support means placed at the acute end of said V-shape for serving as a partition between said first opening and said second opening.
9 more elements
Dependencies are inferred from the claim text.