Invention Grant
- Patent Title: Electric power tool
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Application No.: US15582902Application Date: 2017-05-01
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Publication No.: US10778057B2Publication Date: 2020-09-15
- Inventor: Kiyoshi Aoyama
- Applicant: MAKITA CORPORATION
- Applicant Address: JP Anjo-Shi
- Assignee: MAKITA CORPORATION
- Current Assignee: MAKITA CORPORATION
- Current Assignee Address: JP Anjo-Shi
- Agency: Oliff PLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@b78d029
- Main IPC: H02K3/28
- IPC: H02K3/28 ; H02K21/22 ; H02K3/12 ; H02K7/14

Abstract:
An electric power tool includes a brushless motor as a driving source. The brushless motor includes a stator and a rotor. The stator includes coils wound around in three phases. In a wire winding method of the coil of the stator, when the number of slots per phase is N, the number of series of the coils per phase is A, and the number of parallel of the coils per phase is B, a relation of N=A×B (note that, N is a natural number of 3 or more and 10 or less, A is a natural number of 1 or more, and B is a natural number of 2 or more) is satisfied.
Public/Granted literature
- US20180013329A1 ELECTRIC POWER TOOL Public/Granted day:2018-01-11
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