Invention Grant
- Patent Title: Method for producing a transformer core and a transformer core
- Patent Title (中): 变压器铁芯和变压器铁心的制造方法
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Application No.: US12937477Application Date: 2008-04-10
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Publication No.: US08212645B2Publication Date: 2012-07-03
- Inventor: Martin Alsina Navarro , Fritz Sorg
- Applicant: Martin Alsina Navarro , Fritz Sorg
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- International Application: PCT/EP2008/003074 WO 20080410
- International Announcement: WO2009/124574 WO 20091015
- Main IPC: H01F7/06
- IPC: H01F7/06 ; H01F27/24

Abstract:
A method for producing a transformer core with layers of core laminations includes forming at least one core lamination of at least two segmental laminations. An end region of a first segmental lamination has a straight crosscut edge. The straight crosscut edge of the first segmental lamination together with a corresponding straight crosscut edge of an end region of a second segmental lamination forms a form-locking straight abutting edge. The straight abutting edge is at an angle relative to the longitudinal direction of the end region of one of the segmental laminations of the first core lamination. Using core laminations having different angular orientations of the abutting edges, avoids magnetic losses such as those occurring when using conventional layering techniques. Simultaneously, an intermediate space created by conventional layering techniques between individual core lamination packs can be minimized, and thereby susceptibility to corrosion can likewise be reduced or completely avoided.
Public/Granted literature
- US20110032069A1 METHOD FOR PRODUCING A TRANSFORMER CORE AND A TRANSFORMER CORE Public/Granted day:2011-02-10
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