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.
Patent No.:
Date of Patent:
Oct. 07, 2014
Filed:
May. 11, 2012
Applicants:
Michael Fick, Sondernau, DE;
Armin Stäblein, Fladungen, DE;
Rolf Vollmer, Gersfeld, DE;
Inventors:
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 41/03 (2006.01); H02K 3/28 (2006.01); H02K 16/00 (2006.01);
U.S. Cl.
CPC ...
H02K 16/00 (2013.01); H02K 41/03 (2013.01); H02K 3/28 (2013.01); H02K 41/031 (2013.01);
Abstract
Cogging forces of a cylindrical linear motor are reduced with a linear motor having a rotor with eight poles and a stator with 36 toroidal coils (optionally multiples of eighteen toroidal coils) inserted into slots (Nto N) (or a multiple of 36 slots). The toroidal coils extend in the circumferential direction of the stator, are of equal size, and are arranged axially one behind the other. All the terminals of the toroidal coils are located in an axially extending connector channel. The two terminals of each coil are connected according to a specific connection scheme.