The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 25, 2020

Filed:

Aug. 07, 2017
Applicant:

Dyson Technology Limited, Wiltshire, GB;

Inventors:

David Ions, Swindon, GB;

David Michael Jones, Gloucester, GB;

Assignee:

Dyson Technology Limited, Malmesbury, Wiltshire, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 21/12 (2006.01); H02K 1/28 (2006.01); H02K 1/27 (2006.01); H02K 15/03 (2006.01);
U.S. Cl.
CPC ...
H02K 1/28 (2013.01); H02K 1/2733 (2013.01); H02K 15/03 (2013.01); Y10T 29/49012 (2015.01);
Abstract

A rotor that includes a rotor core assembly secured to a shaft. The rotor core assembly includes a magnet and an end cap secured to an end of the magnet. Each of the magnet and the end cap has a bore into which the shaft extends. The end cap forms an interference fit with the shaft. The magnet forms a clearance fit with the shaft and an adhesive is located in the clearance between the magnet and the shaft. Additionally, a method of manufacturing the rotor. The method includes inserting the shaft into the bore of the end cap. An adhesive is then introduced into the bore of the magnet and the shaft is inserted into the bore of the magnet so as to cause adhesive to be drawn into the clearance defined between the magnet and the shaft.


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