Stator core including recessed portion, projecting portion, and welded portion, and motor including same
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 14, 2021
Grant Date -
Apr 23, 2020
app pub date -
Sep 18, 2019
filing date -
Sep 18, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A stator core includes plate-shaped core members laminated to define the stator core. Each core member includes an annular core back portion, and tooth portions that project radially inward from an inner circumferential surface of the core back portion. The core back portion includes at least one recessed portion recessed radially inward from an outer circumferential surface of the core back portion, and at least one welded portion arranged at a corresponding one of the at least one recessed portion to join axially adjacent ones of the core members. The at least one recessed portion is recessed in a radial direction is in a range of about 0.2 mm to about 1.5 mm, both inclusive.
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