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US 2006/0186752 A1Published application
Rotor and method of manufacturing the same
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKatsunari Matsumoto, Tatsuhiko Mizutani, Toshiya Sugiyama
Life of this patent
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Abstract
A rotor includes a rotor core fixedly provided on a shaft and having a hole, a magnet inserted into the hole, and a resin portion injected between the side surface of the hole and the side surface of the magnet and, the side surface of the magnet has a groove formed therein as a spread-promoting portion that promotes spread of the injected resin portion.
Claims6
A rotor comprising:
- a rotor core fixedly provided on a rotational shaft and having a hole;
- a magnet inserted into said hole;
- and
- a filling portion injected into a gap between a side surface of said hole and a side surface of said magnet, wherein
- at least one of said magnet and said rotor core has a spread-promoting portion formed therein for promoting spread of said filling portion injected into said gap.
2 more elements
A method of manufacturing a rotor comprising the steps of:
- inserting a magnet into a hole formed in a rotor core;
- and
- pressing said magnet inserted into said hole radially inwardly or radially outwardly of said rotor core and thereafter injecting a filler into a gap between said magnet and a wall surface of said hole.
Dependencies are inferred from the claim text.