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. 17, 2022
Filed:
Jan. 24, 2019
Applicant:
Siemens Aktiengesellschaft, Munich, DE;
Inventor:
Herbert Binder, Neuburg, DE;
Assignee:
Flender GmbH, Bocholt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/28 (2006.01); H02K 9/06 (2006.01); H02K 13/00 (2006.01);
U.S. Cl.
CPC ...
H02K 9/28 (2013.01); H02K 9/06 (2013.01); H02K 13/003 (2013.01);
Abstract
A slip ring unit for an electrical machine includes a brush holding apparatus including brush boxes configured to receive slip ring brushes. For realizing an effective cooling of the slip ring brushes, the brush holding apparatus has cooling air lines for the targeted supply of cooling air to the slip ring brushes, and cooling air ducts which each have an air inlet opening for collecting cooling air and an air outlet opening for supplying the cooling air which is collected in the cooling air ducts to the slip ring brushes via the cooling air lines which are connected to the air outlet openings.