Invention Application
- Patent Title: METHOD FOR PRODUCING A SQUIRREL-CAGE ROTOR OF AN ASYNCHRONOUS MACHINE
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Application No.: US17630058Application Date: 2020-07-17
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Publication No.: US20220320975A1Publication Date: 2022-10-06
- Inventor: Klaus BÜTTNER , KLAUS KIRCHNER , MATTHIAS WARMUTH
- Applicant: Siemens Aktiengesellschaft
- Applicant Address: DE 80333 München
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE 80333 München
- Priority: EP19192098.2 20190816
- International Application: PCT/EP2020/070267 WO 20200717
- Main IPC: H02K15/00
- IPC: H02K15/00 ; H02K17/16

Abstract:
In a method for producing a squirrel-cage rotor of an asynchronous machine, conductor bars of a first conductive material are inserted into slots of a magnetically conductive body such as to project out of at least one end side to form a projection. A short-circuiting disc of a second conductive material is positioned under pressure on the projection with a clearance fit of approximately 0.1 mm relative to a radially outwardly open recess of the short-circuiting disc. The short-circuiting disc is heated while the conductor bars virtually contact the short-circuiting disc. At least the projection of the conductor bars is coated with a third material at a layer thickness to form an alloy with the first and second materials after heating so that the third material is fully dispersed in the first and second materials as a result of the third material being diffused into the first and second materials.
Information query