Rotating shaft and motor rotor having the same
AssigneeSystem General Corp.
InventorsShih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Cha Yang
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Abstract
A rotating shaft disclosed by the present invention includes a plurality of bumps spacedly formed along an outer circumferential surface thereof. The bumps are each formed with two engagement portions extending outwardly and bilaterally and a deformation space therebetween. The engagement portions undergo resilient deformation toward the deformation space when subjected to a force, thus providing stable engagement with a magnetic body, protecting the magnetic body from cracks and damages during assembling, and enhancing yield. The present invention further discloses a motor rotor having the above-described rotating shaft.
Claims20
A rotating shaft having a plurality of bumps spacedly formed along an outer circumferential surface thereof such that magnetic bodies can be embedded between adjacent bumps, the rotating shaft being characterized in that:
- the bumps are each formed with two engagement portions extending outwardly and bilaterally and a deformation space between the engagement portions, the engagement portions undergo resilient deformation toward the deformation space when subjected to a force
- wherein recesses are formed on two sides of each of the magnetic bodies for engaging with the engagement portions to provide a clamping force.
A motor rotor, comprising:
- a rotating shaft having a plurality of bumps spacedly formed along an outer circumferential surface thereof, wherein the bumps are each formed with two engagement portions extending outwardly and bilaterally and a deformation space between the engagement portions, the engagement portions undergo resilient deformation toward the deformation space when subjected to a force;
- and
- a plurality of magnetic bodies respectively embedded between the bumps on the outer circumferential surface of the rotating shaft, two sides of each magnetic body being fixed by the engagement portions of two adjacent bumps, and recesses are formed on the two side of each of the magnetic bodies for engaging with the engagement portions to provide a clamping force.
Dependencies are inferred from the claim text.