US 12,261,499 B2
Mechanical device for converting direct current into alternating current
Rolf Vollmer, Gersfeld (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Appl. No. 17/800,710
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Jan. 11, 2021, PCT No. PCT/EP2021/050352
§ 371(c)(1), (2) Date Aug. 18, 2022,
PCT Pub. No. WO2021/164952, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 20158538 (EP), filed on Feb. 20, 2020.
Prior Publication US 2023/0353065 A1, Nov. 2, 2023
Int. Cl. H02K 47/02 (2006.01)
CPC H02K 47/02 (2013.01) 20 Claims
OG exemplary drawing
 
1. A mechanical device for converting direct current into three-phase alternating current for driving a dynamoelectric rotating machine, said mechanical device comprising:
a contact unit attachable to a shaft of the dynamoelectric rotating machine said contact unit including at least two receiving regions for receiving electrical energy in a form of direct current and at least three outout regions for outputting electrical energy in a form of alternating current, with a first one of the at least two receiving regions configured to contact a positive pole of a direct current feed, with a second one of the at least two receiving regions configured to contact a negative pole of the direct current feed, with a first one of the at least three output regions configured to provide a first alternating current with a second one of the at least three output regions configured to provide a second alternating current and with a third one of the at least three output regions configured to provide a third alternating current;
a contacting unit for receiving the direct current and/or for outputting the alternating current;
an assembly comprising a spring and a contact to provide contact of the at least three output regions with three phases of the dynamoelectric rotating machine; and
an isolator embodied between two of the at least three output regions and the contact to prevent the contact from making contact with the two of the at least three output regions at a same time,
wherein the first one of the at least three output regions is disposed on a first slideway, the second one of the at least three output regions is disposed on a second slideway, and the third one of the at least three output regions is disposed on a third slideway.