Patent ID: 7088023
Filing Date: 2006-08-08
Classification: F16C,G11B,H02K

Abstract:
1. A motor unit comprising: a housing member that is a part of a housing which forms a closed space therein, the housing member including a hollow cylindrical section; an electric motor which is accommodated into the closed space, the electric motor including a stator which is fixed by the housing member, a bearing assembly secured in the hollow cylindrical section, and a rotor assembly which is supported by the bearing assembly, the rotor assembly holding a rotor magnet facing the stator on an outer circumferential portion thereof, and rotating around a central axis which is approximately coaxial with a central axis of the hollow cylindrical section; adhesives; a joint section comprising an inner circumferential portion of the hollow cylindrical section, an outer circumferential portion of the bearing assembly and the adhesives intervening therebetween; a first adhesive subsection, being a part of and formed to a predetermined extent in the joint section, and including an anaerobic adhesive as a principal component of the adhesives; and a second adhesive subsection, also being a part of the joint section, and formed to an extent that is larger than the extent of the first adhesive subsection, and including an externally stimulated curing type adhesive as a principal component of the adhesives, the externally stimulated curing type adhesive cured by at least one of heating treatment and ultraviolet irradiation treatment.