Invention Grant
- Patent Title: Adhesively-laminated core for stator, method of manufacturing the same, and electric motor
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Application No.: US17299226Application Date: 2019-12-17
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Publication No.: US12266971B2Publication Date: 2025-04-01
- Inventor: Kazutoshi Takeda , Hiroyasu Fujii , Shinsuke Takatani
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2018-235870 20181217
- International Application: PCT/JP2019/049269 WO 20191217
- International Announcement: WO2020/129927 WO 20200625
- Main IPC: H02K1/16
- IPC: H02K1/16 ; H02K15/02

Abstract:
Provided is an electric motor which includes an adhesively-laminated core for a stator having excellent productivity and high mechanical strength and that is thus capable of reducing vibration and noise of an electric motor and suppressing iron loss. The adhesively-laminated core for a stator includes electrical steel sheets laminated on each other and each coated on both sides with an insulation coating, and an adhesion part disposed between the electrical steel sheets adjacent to each other in a stacking direction and configured to cause the electrical steel sheets to be adhered to each other. All sets of the electrical steel sheets adjacent to each other in the stacking direction are adhered by the adhesion part, an adhesive forming the adhesion part includes a fast-curing type adhesive and a thermosetting adhesive, and the adhesion part is partially provided between the electrical steel sheets adjacent to each other in the stacking direction.
Public/Granted literature
- US20220037939A1 ADHESIVELY-LAMINATED CORE FOR STATOR, METHOD OF MANUFACTURING THE SAME, AND ELECTRIC MOTOR Public/Granted day:2022-02-03
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