US 11,705,794 B2
Stacked stator core
Iwao Myojin, Kitakyushu (JP); Yusuke Hasuo, Kitakyushu (JP); Yusuke Eto, Kitakyushu (JP); and Hayato Nakayama, Kitakyushu (JP)
Filed by Mitsui High-tec, Inc., Kitakyushu (JP)
Filed on Dec. 22, 2021, as Appl. No. 17/558,644.
Application 17/558,644 is a continuation of application No. 16/535,088, filed on Aug. 8, 2019, granted, now 11,245,315.
Application 16/535,088 is a continuation of application No. PCT/JP2018/001965, filed on Jan. 23, 2018.
Claims priority of application No. 2017-024383 (JP), filed on Feb. 13, 2017; and application No. 2017-138428 (JP), filed on Jul. 14, 2017.
Prior Publication US 2022/0115935 A1, Apr. 14, 2022
Int. Cl. H02K 1/04 (2006.01); H02K 15/10 (2006.01); H02K 3/52 (2006.01); H02K 15/00 (2006.01); H02K 15/02 (2006.01)
CPC H02K 15/10 (2013.01) [H02K 1/04 (2013.01); H02K 3/521 (2013.01); H02K 15/0043 (2013.01); H02K 15/024 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A stacked stator core comprising:
a stack configured such that a plurality of core members are stacked, the stack comprising:
an annular yoke portion;
a plurality of tooth portions extending substantially radially from the yoke portion; and
a plurality of slots, each being a space formed between two of the plurality of tooth portions adjacent to each other in a circumferential direction of the yoke portion; and
a resin portion,
wherein the resin portion includes:
a resin main portion covering an inner wall surface of a slot of the plurality of slots; and
a resin end portion disposed on an end surface of the stack,
wherein the resin end portion protrudes outward relative to the end surface of the stack in a height direction of the stack,
wherein the resin end portion is formed on at least a part of an end surface of one tooth portion forming the slot so as to extend from the inner wall surface of the slot and around the end surface of the tooth portion,
wherein the resin end portion includes a corner that extends from the resin main portion,
wherein the corner of the resin end portion forms an inclined surface including a planar surface or a curved surface, and
wherein the resin portion extends longitudinally along the tooth portion so that the inclined surface extends substantially in a radial direction of the annular yoke portion.