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公开(公告)号：US10367401B2
公开(公告)日：2019-07-30
申请号：US15112537
申请日：2015-03-05
Applicant: MITSUBA CORPORATION
Inventor： Natsumi Tamura , Hiroto Tanaka , Teppei Tokizaki , Satoshi Tamura
IPC: H02K23/00 , H02K23/38 , H02K3/18 , H02K3/28 , H02K1/17 , H02K1/24 , H02K1/26 , H02K3/12 , H02K7/08 , H02K7/10 , H02K13/00 , H02K23/26 , H02K7/116
Abstract: In a 4-pole, 6-slot, 18-segment electric motor, one forward winding coil (91) and two reverse winding coils (92, 93) are wound on each tooth (12). When the forward winding coils are formed of coils corresponding to a U phase, a V phase, and a W phase and the reverse winding coils are formed of coils corresponding to a “−U” phase, a “−V” phase, and a “−W” phase, the coils, which correspond to a U phase, a “−W” phase, a “−W” phase, a V phase, a “−U” phase, a “−U” phase, a W phase, a “−V” phase, and a “−V” phase, are electrically connected in this order between the adjacent segments. When the number of turns of the coils (91) corresponding to a U phase, a V phase, and a W phase is denoted by T1, the number of turns of the coils (92), which correspond to a “−U” phase, a “−V” phase, and a “−W” phase and first come into sliding contact with a brush, is denoted by T2, and the number of turns of the coils (93), which correspond to a “−U” phase, a “−V” phase, and a “−W” phase and later come into sliding contact with the brush, is denoted by T3, “T2>T1>T3” is satisfied.
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公开(公告)号：US20160352176A1
公开(公告)日：2016-12-01
申请号：US15117171
申请日：2015-03-04
Applicant: Mitsuba Corporation
Inventor： Teppei Tokizaki , Akio Hoshino , Natsumi Tamura , Satoshi Tamura
Abstract: An armature core (8A) includes a plurality of teeth (12) that radially extend. A plurality of coils (91), (92), and (93) are wound in a concentrated winding manner on a winding drum portion (12a) of each tooth; a winding wire (14) of a lowermost side of at least a first-layer coil is wound so as to come into close contact with a winding surface of a base end side of the winding drum portion; a second-layer coil, which is to be wound later, is wound so that at least a part of the second-layer coil overlaps the first-layer coil; and a step (12a1) as a regulating portion, which regulates the positional deviation of the winding wire of the lowermost side of the first-layer coil in an extending direction of the winding drum portion, is provided on at least a part of the winding surface for the first-layer coil on an outer periphery of the winding drum portion.
Abstract translation: 电枢铁芯（8A）包括径向延伸的多个齿（12）。 多个线圈（91），（92）和（93）以浓缩的卷绕方式缠绕在每个齿的卷绕鼓部分（12a）上; 至少第一层线圈的最下侧的绕线（14）被卷绕以与卷绕鼓部的基端侧的卷绕表面紧密接触; 将要被卷绕的第二层线圈被卷绕成使得第二层线圈的至少一部分与第一层线圈重叠; 作为调节部的步骤（12a1）设置在绕组的至少一部分上，其调节在卷绕鼓部的延伸方向上的第一层线圈的最下侧的绕组的位置偏移 在卷绕鼓部分的外周上的第一层线圈的表面。
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公开(公告)号：US20160344273A1
公开(公告)日：2016-11-24
申请号：US15112537
申请日：2015-03-05
Applicant: MITSUBA CORPORATION
Inventor： Natsumi Tamura , Hiroto Tanaka , Teppei Tokizaki , Satoshi Tamura
IPC: H02K23/38 , H02K1/24 , H02K1/17 , H02K7/10 , H02K3/12 , H02K3/28 , H02K13/00 , H02K7/08 , H02K1/26 , H02K3/18
CPC classification number: H02K23/38 , H02K1/17 , H02K1/24 , H02K1/26 , H02K3/12 , H02K3/18 , H02K3/28 , H02K7/08 , H02K7/10 , H02K7/1166 , H02K13/006 , H02K23/26 , H02K2213/03
Abstract: In a 4-pole, 6-slot, 18-segment electric motor, one forward winding coil (91) and two reverse winding coils (92, 93) are wound on each tooth (12). When the forward winding coils are formed of coils corresponding to a U phase, a V phase, and a W phase and the reverse winding coils are formed of coils corresponding to a “−U” phase, a “−V” phase, and a “−W” phase, the coils, which correspond to a U phase, a “−W” phase, a “−W” phase, a V phase, a “−U” phase, a “−U” phase, a W phase, a “−V” phase, and a “−V” phase, are electrically connected in this order between the adjacent segments. When the number of turns of the coils (91) corresponding to a U phase, a V phase, and a W phase is denoted by T1, the number of turns of the coils (92), which correspond to a “−U” phase, a “−V” phase, and a “−W” phase and first come into sliding contact with a brush, is denoted by T2, and the number of turns of the coils (93), which correspond to a “−U” phase, a “−V” phase, and a “−W” phase and later come into sliding contact with the brush, is denoted by T3, “T2>T1>T3” is satisfied.
Abstract translation: 在4极6槽18段电动机中，在每个齿（12）上缠绕有一个正向绕组线圈（91）和两个反向绕组线圈（92,93）。 当正向绕组线圈由对应于U相，V相和W相的线圈形成时，反向绕组线圈由对应于“-U”相位的线圈，“-V”相位和 “-W”相位，对应于U相，“-W”相，“-W”相，V相，“-U”相，“-U”相，W相的线圈 相位，“-V”相位和“-V”相位在相邻段之间以这种顺序电连接。 当对应于U相，V相和W相的线圈（91）的匝数由T1表示时，与“-U”相对应的线圈（92）的匝数 ，“-V”相位和“-W”相位，并且首先与电刷滑动接触，由T2表示，并且对应于“-U”的线圈（93）的匝数 相位，“-V”相位和“-W”相位，随后与电刷滑动接触，由T3表示“T2> T1> T3”。
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Patent Agency Ranking
公开(公告)号：US12176790B2
公开(公告)日：2024-12-24
申请号：US18334359
申请日：2023-06-13
Applicant: MITSUBA Corporation
Inventor： Teppei Tokizaki , Motoaki Kobayashi , Satoshi Tamura , Masaki Hayata , Masakazu Saito , Yoshichika Kawashima
Abstract: A brushless motor includes a motor part and a gear part. The motor part includes: a rotating shaft, having a first gear; a rotor, having a bottom wall and a side wall, the bottom wall being fixed to the rotating shaft; magnets, fixed to the side wall and arranged side by side in a circumferential direction of the rotor; a stator, provided between the rotating shaft and the magnets in a radial direction of the rotor and wound with a coil; and a motor housing, rotatably supporting the rotating shaft, and accommodating the rotor and the stator. The gear part includes: a second gear, meshed with the first gear; an output shaft, having an output part, having a base end side thereof fixed to the second gear, and parallel to the rotating shaft; and a gear housing, rotatably supporting the output shaft, and accommodating the second gear.
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公开(公告)号：US20210159758A1
公开(公告)日：2021-05-27
申请号：US17167360
申请日：2021-02-04
Applicant: Mitsuba Corporation
Inventor： Teppei Tokizaki , Satoshi Tamura , Natsumi Tamura , Hiroto Tanaka
Abstract: A motor with a speed reducer includes a motor (4) received in a motor housing (2), a speed reducer (5) received in the motor housing (2) and that is driven by receiving power from a motor shaft of the motor (4) and that reduces rotation of a rotor boss (43) and outputs the reduced rotation, and a drive shaft (7) received in the motor housing (2), connected to an output shaft (58) of the speed reducer (5) via a transmission belt (6) and that drives a driven body, wherein the rotor boss (43) and the output shaft (58) are disposed coaxially, and the output shaft (58) and the drive shaft (7) are disposed parallel in a radial direction.
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公开(公告)号：US20240072605A1
公开(公告)日：2024-02-29
申请号：US18334359
申请日：2023-06-13
Applicant: MITSUBA Corporation
Inventor： TEPPEI TOKIZAKI , Motoaki Kobayashi , Satoshi Tamura , Masaki Hayata , Masakazu Saito , Yoshichika Kawashima
Abstract: A brushless motor includes a motor part and a gear part. The motor part includes: a rotating shaft, having a first gear; a rotor, having a bottom wall and a side wall, the bottom wall being fixed to the rotating shaft; magnets, fixed to the side wall and arranged side by side in a circumferential direction of the rotor; a stator, provided between the rotating shaft and the magnets in a radial direction of the rotor and wound with a coil; and a motor housing, rotatably supporting the rotating shaft, and accommodating the rotor and the stator. The gear part includes: a second gear, meshed with the first gear; an output shaft, having an output part, having a base end side thereof fixed to the second gear, and parallel to the rotating shaft; and a gear housing, rotatably supporting the output shaft, and accommodating the second gear.
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公开(公告)号：US10270321B2
公开(公告)日：2019-04-23
申请号：US15128491
申请日：2015-05-13
Applicant: Mitsuba Corporation
Inventor： Natsumi Tamura , Tomoo Iijima , Teppei Tokizaki , Satoshi Tamura
IPC: H02K13/10 , H02K5/14 , H02K5/22 , H02K7/116 , H02K11/026 , H02K11/38 , H02K13/00 , B60S1/08 , B60S1/16
Abstract: An electric motor includes: brushes (31) that are brought into sliding contact with a commutator of an armature that is fixed to a rotation shaft and feeds electric power; a brush holder stay (33) that supports the brushes (31) via brush holders (41); noise prevention elements (110) that are electrically connected to the brushes (31); and terminals (130) and jump wires (141) that electrically connect between the brush holders (41) and the noise prevention elements (110), wherein first connection portions, which connect between the noise prevention elements (110) and the terminals (130), and second connection portions, which connect between the terminals (130) and the jump wires (141), are both disposed only on a first surface (S1) of the brush holder stay (33).
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公开(公告)号：US20180083507A1
公开(公告)日：2018-03-22
申请号：US15562245
申请日：2016-04-12
Applicant: Mitsuba Corporation
Inventor： Teppei Tokizaki , Satoshi Tamura , Natsumi Tamura , Hiroto Tanaka
CPC classification number: H02K5/24 , B60S1/26 , F16D65/0006 , F16D2121/24 , F16H1/32 , H02K3/522 , H02K5/225 , H02K7/1004 , H02K7/116 , H02K11/33
Abstract: A motor with a speed reducer includes a motor (4) received in a motor housing (2), a speed reducer (5) received in the motor housing (2) and that is driven by receiving power from a motor shaft of the motor (4) and that reduces rotation of a rotor boss (43) and outputs the reduced rotation, and a drive shaft (7) received in the motor housing (2), connected to an output shaft (58) of the speed reducer (5) via a transmission belt (6) and that drives a driven body, wherein the rotor boss (43) and the output shaft (58) are disposed coaxially, and the output shaft (58) and the drive shaft (7) are disposed parallel in a radial direction.
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