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公开(公告)号：US11190073B2
公开(公告)日：2021-11-30
申请号：US16483057
申请日：2017-12-20
Inventor： Mitsuoki Hishida , Yuichi Yoshikawa , Hirokazu Yamauchi , Keiichiro Nukada
Abstract: A motor includes a stator including a stator core and teeth respectively protruding from the stator core, and coils respectively wound onto the teeth n (n is an integer of 1 or greater) turns including first to n-th turns. The coils are each made from a conductive member having a polygonal cross section. On a cross section obtained when one of the coils is cut in a corresponding one of directions of protrusion of the teeth from the stator core, the one of the coils includes a recess on at least either a first opposing surface representing an opposing surface to a corresponding one of the teeth or a second opposing surface representing an opposing surface to another one of the coils, which is wound onto adjacent one of the teeth. A space allowing refrigerant used for cooling the coils to pass through is provided between the recess and at least either the first opposing surface or the second opposing surface.
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公开(公告)号：US11070103B2
公开(公告)日：2021-07-20
申请号：US16483050
申请日：2017-12-20
Inventor： Yasushi Kato , Yuichi Yoshikawa , Hirokazu Yamauchi , Keiichiro Nukada , Mitsuoki Hishida
Abstract: A motor includes a stator core, teeth respectively protruding from the stator core, and coils respectively wound onto the teeth n (n is an integer of 2 or greater) turns including first to n-th turns. Within each of ranges respectively wound with the coils onto the teeth in directions of protrusion of the teeth from the stator core, the first turn of each of the coil lies adjacent to a center of the motor. A k-th (k is an integer, 1
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公开(公告)号：US10965198B2
公开(公告)日：2021-03-30
申请号：US16603317
申请日：2018-01-29
Inventor： Mitsuoki Hishida , Yuichi Yoshikawa , Hirokazu Yamauchi , Keiichiro Nukada
Abstract: A coil includes a series of turns constituted by a first turn to an n-th turn of a conductive wire having a quadrangular cross-section, where the conductive wire is wound in a spiral shape and is stacked in a vertical direction, and n is an integer equal to or greater than 3. In addition, at least a part of the conductive wire of the first turn to the n-th turn is provided with a deformed part whose shape is different from shapes of the other parts. Further, the first turn and the n-th turn are on the both end parts of the series of turns. In addition, at each of the first turn and the n-th turn, the deformed part makes an outer surface positioned on an opposite side with respect to a center of the series of turns extend in a flush manner along a plane intersecting the series of turns.
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公开(公告)号：US10938263B2
公开(公告)日：2021-03-02
申请号：US16475723
申请日：2017-11-02
Inventor： Mitsuoki Hishida , Hirokazu Yamauchi , Yuichi Yoshikawa , Keiichiro Nukada
Abstract: The invention provides a connection structure between a coil and a bus bar attached to a stator of a motor, and the coil and the bus bar each include a lead part. At least one of the lead parts has a distal end provided with a corner cut away to be stepped to configure a stepped portion having a side surface extending substantially in parallel with a longitudinal direction of the lead part. The coil and the bus bar are connected to each other in a state where the side surface of the stepped portion of a first one of the lead parts is in contact with a second one of the lead parts.
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