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. 11, 2022
Filed:
May. 24, 2019
Siemens Ltd., China, Beijing, CN;
Chang Peng Li, Beijing, CN;
Xu Hua, Shanghai, CN;
Kateryna Svynarenko, Shanghai, CN;
Guo Feng Chen, Beijing, CN;
SIEMENS LTD., CHINA, Beijing, CN;
Abstract
Provided are an electric motor, a laminated iron core, and a manufacturing method. In. an embodiment, the method includes S1: introducing inert gas into an additive manufacturing printing apparatus, pouring silicon steel metal particles into a fanning cylinder of the apparatus, and performing laser scanning on the silicon steel metal particles to gradually melt the silicon steel metal particles into at least one silicon steel metal layer; and S2: continuing to pour silicon steel metal particles into the forming cylinder, and stopping performing laser scanning on the silicon steel metal particles or reducing the laser power executing the laser scanning, such that the silicon steel metal particles do not entirely melt and form an insulating layer. Execution of steps S1 and S2 is alternated until a laminated iron core having a plurality of alternating silicon steel metal layers and insulating layers is formed.