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1. 发明公开

EP3407469A1 DYNAMO-ELECTRIC MACHINE 有权
公开(公告)号：EP3407469A1
公开(公告)日：2018-11-28
申请号：EP17741571.8
申请日：2017-01-20
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki
IPC分类号： H02K1/16 , H02K1/02 , H02K11/21 , H02K1/27 , H02K11/215
CPC分类号： H02K11/215 , H02K1/02 , H02K1/278
摘要： A motor 1 includes a stator 2, a rotor 3, and a detection unit 4. The stator 2 includes a stator core 11 including a yoke 21 and teeth 22. The stator core 11 is a dust core including particles of a magnetic material. The rotor 3 includes a rotor core 31 and a field magnet 32. The detection unit 4 includes a detection target portion 41 and a detection portion 42. Suppose an axial direction of the stator core 11 is a top-bottom direction, front ends of the teeth 22 are provided with flange portions 22b extending upward. The rotor core 31 includes a body portion 31b and a cylinder portion 31c extending upward from an outer peripheral portion of the body portion 31b. The detection target portion 41 is located inward of the cylinder portion 31c in a radial direction of the yoke 21 and is located at an upper side of the body portion 31b in the top-bottom direction. A lower end of the detection target portion 41 is located below an upper end of the cylinder portion 31c and upper ends of the flange portions 22b.

2. 发明授权

EP3145054B1 ELECTRICAL ROTATING MACHINE 有权
公开(公告)号：EP3145054B1
公开(公告)日：2019-08-21
申请号：EP16189074.4
申请日：2016-09-15
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki
IPC分类号： H02K1/14

3. 发明公开

EP3145054A1 ELECTRICAL ROTATING MACHINE 有权
标题翻译：电动旋转机
公开(公告)号：EP3145054A1
公开(公告)日：2017-03-22
申请号：EP16189074.4
申请日：2016-09-15
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki
IPC分类号： H02K1/14
CPC分类号： H02K1/146 , H02K1/148 , H02K1/2706 , H02K1/2786 , H02K3/18 , H02K21/12
摘要： Provided is an electrical rotating machine capable of achieving both an increase in the number of turns of a stator coil and a suppression of an increase in the magnetic resistance of a stator core (11). A motor (1) includes a stator (2). The stator (2) includes: a stator core (11) including a cylindrical yoke (21) extending in an axial direction and a plurality of teeth (22) extending inwardly of the yoke (21) from an inner circumferential surface of the yoke (21); and a stator coil (12) wound around the teeth (22). The stator core (11) is a dust core that uses particulates including particles of a magnetic material, and includes a plurality of yoke pieces (21a) having fracture surfaces (21 b) disposed relative to each other along a circumferential direction of the yoke (21). Each of the teeth (22) is provided on each of at least some of the plurality of yoke pieces (21a) having the fracture surfaces (21b). The fracture surfaces (21b) of mutually adjacent yoke pieces (21a) of the plurality of yoke pieces (21a) having the fracture surfaces (21 b) are in contact with each other.
摘要翻译：本发明提供一种能够同时实现定子线圈的匝数增加和定子铁芯（11）的磁阻增大的抑制的旋转电机。电动机（1）包括定子（2）。定子（2）包括：定子铁芯（11），其包括沿轴向延伸的圆柱形磁轭（21）和从磁轭（21）的内圆周表面向内延伸的多个齿（22） 21）; 和缠绕在齿（22）上的定子线圈（12）。定子铁芯（11）是使用包含磁性材料的粒子的微粒的压粉磁芯，具有沿着磁轭的周向相对配置的断裂面（21b）的多个磁轭片（21a） 21）。每个齿（22）设置在具有断裂面（21b）的多个轭片（21a）中的至少一些轭片上。具有断裂表面（21b）的多个轭片（21a）的彼此相邻的轭片（21a）的断裂表面（21b）彼此接触。

4. 发明公开

EP4071978A1 AXIAL-GAP TYPE ROTATING ELECTRIC MACHINE 有权
公开(公告)号：EP4071978A1
公开(公告)日：2022-10-12
申请号：EP20913217.4
申请日：2020-12-18
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki , KURITA, Hirotaka , HAGIWARA, Tatsuya , SUGIMURA, Takumi
IPC分类号： H02K3/34 , H02K21/24 , H02K1/02
摘要： An axial-gap-dynamoelectric machine that allows magnetic fluxes to flow efficiently while enhancing assemblability of pressed powder teeth to a base yoke is provided. An axial-gap-dynamoelectric machine X includes resin bobbins 9 having positioning protrusions 9c, and a base yoke 5 having a plurality of tooth holes 6 and positioning holes 5a. In each tooth hole 6, a circumferential length of a tooth-hole-radial-direction-outer-end surface 6c is larger than a circumferential length of a tooth-hole-radial-direction-inner-end surface 6a. Each of the plurality of pressed powder teeth 8 has a columnar shape in which a circumferential length of a pressed-powder-tooth-upper surface 8b is larger than a circumferential length of a pressed-powder-tooth-bottom surface 8a. The positioning protrusions 9c are inserted in the positioning holes 5a, and press the pressed powder teeth 8 against the base yoke 5 inward in the radial direction of a stator core 7 such that the pressed-powder-tooth-bottom surface 8a is brought into contact with the tooth-hole-radial-direction-inner-end surface 6a and the pressed-powder-tooth-oblique surface 8c is brought into contact with the tooth-hole-circumferential-direction-end surface 6c.

5. 发明公开

EP4071973A1 AXIAL GAP MOTOR 审中-实审
公开(公告)号：EP4071973A1
公开(公告)日：2022-10-12
申请号：EP20914238.9
申请日：2020-12-18
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki , KURITA, Hirotaka , HAGIWARA, Tatsuya , SUGIMURA, Takumi
IPC分类号： H02K1/27
摘要： An axial gap motor capable of reducing a cogging torque and a torque ripple included in an output torque while suppressing a decrease in the output torque is provided. A plurality of pressed powder teeth 32 extends in the radial directions of a stator core and each has a trapezoidal shape in which a circumferential length of a pressed-powder-tooth-radial-direction-outer-end portion is larger than a circumferential length of a pressed-powder-tooth-radial-direction-inner-end portion. A plurality of field magnets 22 is configured such that a circumferential length of a magnet-radial-direction-inner-end portion 22b is greater than or equal to a circumferential length of a magnet-radial-direction-outer-end portion 22a, and when a rotor 2 and a stator core 30 rotate relative to each other about a rotation axis P, a part of the field magnets 22 first overlaps with pressed-powder-tooth-radial-direction-inner portions U of pressed powder teeth 32, and while the field magnets 22 are located at a q-axis position with respect to the pressed powder teeth 32, adjacent ones of the field magnets 22 individually overlap with one pressed powder tooth 32.

6. 发明授权

EP3407469B1 DYNAMO-ELECTRIC MACHINE 有权
公开(公告)号：EP3407469B1
公开(公告)日：2020-03-04
申请号：EP17741571.8
申请日：2017-01-20
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki
IPC分类号： H02K1/16 , H02K1/02 , H02K11/21 , H02K1/27 , H02K11/215

7. 发明授权

EP3017532B1 SYNCHRONOUS DRIVE MOTOR 有权
公开(公告)号：EP3017532B1
公开(公告)日：2019-02-27
申请号：EP14734927.8
申请日：2014-05-27
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki , HINO, Haruyoshi , NISHIKAWA, Takahiro
IPC分类号： H02K21/22 , H02K7/00 , H02K29/03 , H02K1/27 , F02N11/04

8. 发明公开

EP3017532A2 SYNCHRONOUS DRIVE MOTOR 有权
标题翻译：电机麻省理工学院
公开(公告)号：EP3017532A2
公开(公告)日：2016-05-11
申请号：EP14734927.8
申请日：2014-05-27
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： KOBAYASHI, Takayuki , HINO, Haruyoshi , NISHIKAWA, Takahiro
IPC分类号： H02K21/22 , H02K7/00 , H02K29/03 , H02K1/27 , F02N11/04
CPC分类号： H02K1/278 , H02K21/22 , H02K29/03
摘要： Provided is a synchronous drive motor that satisfies a high torque, a high output, and downsizing at a higher level. A synchronous drive motor includes: a stator including a stator core and windings, the stator core including a plurality of teeth that are spaced from each other by a slot formed therebetween with respect to a circumferential direction, the winding extending through the slot, each of the plurality of teeth including a portion wound with the winding; and a rotor including a plurality of permanent magnet parts, a back yoke part, and a plurality of auxiliary yoke parts, the plurality of permanent magnet parts being arranged at intervals in the circumferential direction, each of the plurality of permanent magnet parts having a magnet face facing the stator core, the back yoke part supporting the plurality of permanent magnet parts, the back yoke part being provided opposite to the magnet faces of the plurality of permanent magnet parts with respect to a direction of opposing between the stator core and the magnet faces, the plurality of auxiliary yoke parts being provided to the back yoke part and arranged in the intervals, the plurality of auxiliary yoke parts being opposed to the stator core. Each of the plurality of teeth includes a distal end portion that is opposed to the magnet face. The distal end portion has a smaller circumferential width than the sum of a circumferential width of the magnet face and a circumferential width of a distal end surface of the auxiliary yoke part. The number of the magnet faces is more than the number of the teeth.
摘要翻译：提供了一种同步驱动电动机，其在较高水平处满足高扭矩，高输出和小型化。同步驱动马达包括：定子，其包括定子芯和绕组，所述定子芯包括多个齿，所述多个齿通过相对于圆周方向在其间形成的槽彼此间隔开，所述绕组延伸穿过所述槽，所述多个齿包括缠绕在所述绕组上的部分; 以及包括多个永磁体部分的转子，后轭部分和多个辅助轭部，所述多个永磁体部分沿周向间隔设置，所述多个永磁体部分中的每一个具有磁体面对定子铁心的后磁轭部分，支撑多个永久磁铁部件的后磁轭部分，后磁轭部分相对于定子铁芯和磁铁之间相对的方向设置在多个永久磁铁部件的磁体面的相对侧所述多个辅助磁轭部分设置在所述后磁轭部分上并以间隔布置，所述多个辅助磁轭部分与所述定子磁芯相对。多个齿中的每一个包括与磁体面相对的前端部。前端部具有比磁体面的周向宽度与辅助轭部的前端面的周向宽度之和小的周向宽度。磁体面的数量大于齿数。

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