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:
May. 19, 2015
Filed:
May. 27, 2010
Roman Furrer, Eschenbach, CH;
Daho Taghezout, Morges, CH;
Roman Furrer, Eschenbach, CH;
Daho Taghezout, Morges, CH;
BELIMO HOLDING AG, Hinwil, CH;
Abstract
The invention relates to a brushless direct-current motor (), comprising a stator (), a rotor cup () that revolves around the stator () and has a plurality of permanent-magnet poles (N, S), and a detent torque plate () that is connected to the stator () and has several pole shoes () for generating a detent torque that brings the revolving rotor cup () into a detent position. The pole shoes () are each arranged in the detent position between two adjacent poles (N, S) of the revolving rotor cup () to form a magnetic short circuit. The detent torque plate () is arranged substantially outside of the magnetic rotating field produced by the stator () during operation, whereby the production of the detent torque is decoupled from the electrical behavior of the brushless direct-current motor () and the power of the brushless direct-current motor () is not substantially influenced by the presence of the detent torque plate ().