公开(公告)号：US09923420B2

公开(公告)日：2018-03-20

申请号：US15044882

申请日：2016-02-16

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki Takemoto ,  Shigemasa Kato ,  Masashi Matsuda

IPC: H02K1/14 ,  H02K1/22 ,  H02K3/28 ,  F04D17/16 ,  F04D29/28 ,  F04D29/42 ,  F04D25/06 ,  H02K37/12 ,  H02K1/27 ,  H02K16/00

CPC classification number: H02K1/145 ,  F04D17/16 ,  F04D25/0606 ,  F04D29/281 ,  F04D29/4226 ,  H02K1/2713 ,  H02K16/00 ,  H02K37/12

Abstract: A motor includes a stator and a rotor. The stator includes an inner circumference stator section and an outer circumference stator section. The inner circumference stator section and the outer circumference stator section each include two stator cores and a coil. The two stator cores each include claw poles and are coupled to each other. The coil is arranged between the two stator cores. The rotor includes an inner circumference magnet and an outer circumference magnet. The inner circumference magnet, which is arranged at an inner circumferential side of the inner circumference stator section, opposes the claw poles in the radial direction. The outer circumference magnet, which is arranged at an outer circumferential side of the outer circumference stator section, opposes the claw poles in the radial direction. The inner circumference stator section and the inner circumference magnet form an inner circumference motor unit. The outer circumference stator section and the outer circumference magnet form an outer circumference motor unit.

公开(公告)号：US08981611B2

公开(公告)日：2015-03-17

申请号：US13658965

申请日：2012-10-24

Applicant: ASMO Co., Ltd.

Inventor： Kenta Goto ,  Hideaki Nishiura ,  Shigemasa Kato ,  Yoshiyuki Takabe ,  Masashi Matsuda ,  Toshihiro Uchida

IPC: H02K1/27 ,  H02K21/12 ,  H02K29/03

CPC classification number: H02K1/2746 ,  H02K29/03 ,  H02K2201/06

Abstract: A rotor includes magnetic pole portions and first and second ferric core portions. The first and second ferric core portions are each located between magnetic pole portions in the circumferential direction of a rotor. A first gap is formed between the first or second ferric core portion and a magnetic pole portion at a first circumferential side. A second gap is formed between the first or second ferric core portion and the magnetic pole portion at a second circumferential side. The first gap has a smaller width than the second gap at the first ferric core portion. The first ferric core portion is inclined toward the first circumferential side. The first gap is larger than the second gap at the second ferric core portion. The second ferric core portion is inclined toward the second circumferential side.

Abstract translation: 转子包括磁极部分和第一和第二铁芯部分。 第一和第二铁芯部分分别位于转子周向的磁极部分之间。 在第一或第二铁芯部分和第一圆周侧的磁极部分之间形成第一间隙。 在第二圆周侧的第一或第二铁芯部和磁极部之间形成第二间隙。 第一间隙具有比第一铁芯部分的第二间隙小的宽度。 第一铁芯部朝向第一周向侧倾斜。 第一间隙大于第二铁心部分处的第二间隙。 第二铁芯部朝向第二周向侧倾斜。