US 7,608,966 B2
	Rotor and method of manufacturing
Tatsuhiko Mizutani, Toyota (Japan); Toshiya Sugiyama, Toyota (Japan); and Eiji Maeda, Nagoya (Japan)
Assigned to Toyota Jidosha Kabushiki Kaisha, Toyota-shi (Japan)
Appl. No. 11/667,878 PCT Filed Jan. 30, 2006, PCT No. PCT/JP2006/001917 § 371(c)(1), (2), (4) Date May 16, 2007, PCT Pub. No. WO2006/090567, PCT Pub. Date Aug. 31, 2006.
Claims priority of application No. 2005-046033 (JP), filed on Feb. 22, 2005.
Prior Publication US 2007/0290566 A1, Dec. 20, 2007
Int. Cl. H02K 21/12 (2006.01)

U.S. Cl. 310—156.53

9 Claims

1. A structure of a rotor in a rotating electrical machine having the rotor and a stator, wherein said rotor includes a rotor core, a permanent magnet inserted into an opening formed along a circumferential direction of said rotor core, and end plates provided to sandwich said rotor core in a direction of a rotation axis, said permanent magnet being fixed to said rotor core with an adhesive, an intermediate member is provided between said rotor core and each of said end plates, the intermediate member having a linear expansion coefficient falling between a linear expansion coefficient of said rotor core and a linear expansion coefficient of said end plates, and an outer periphery of each of said end plates in said circumferential direction has a portion placed to be radially inward with respect to an outer periphery of said intermediate member.