公开(公告)号：US20200244133A1

公开(公告)日：2020-07-30

申请号：US16756126

申请日：2018-10-02

Applicant: MITSUBA Corporation

Inventor： Tetsuya WATANABE ,  Tatsuyuki SAITO ,  Yohei MASUDA ,  Satomi WATANABE

IPC: H02K5/10 ,  B60K7/00 ,  H02K7/00

Abstract: This drive device is provided with a motor section (2) and a wheel (102) which is connected to the output section (44) of the motor section (2) and which rotates. The wheel (102) has a circular plate-shaped disk section (104) which is affixed to the output section (44), and a rim section (105) which extends in the axial direction of the output section (44) from the outer periphery of the disk section (104) and on which a tire (103) is mounted. The disk section (104) is provided with a rib (116) surrounding the periphery of the motor section (2).

公开(公告)号：US20200220418A1

公开(公告)日：2020-07-09

申请号：US16648238

申请日：2018-08-09

Applicant: MITSUBA Corporation

Inventor： Masashi SUTO ,  Naoki OGATA

IPC: H02K5/08 ,  H02K15/14 ,  H02K5/22

Abstract: A wide section 71d which contacts a connector member and positions the connector member relative to a connector housing part is provided in a section where a first securing part 71b of a cover member 70 is provided and is configured so as to be wider than the other parts of the section where the first securing part 71b of the cover member 70 is provided; hence, it is possible to use the wide section 71d in the pressing section (pressing point OP) of an extrusion pin. As a result, it is possible to suppress distortion of the cover member 70 and to sufficiently smooth the welded section (first securing part 71b) of the cover member 70 even when the shape of the cover member 70 is complicated.

公开(公告)号：US20200083789A1

公开(公告)日：2020-03-12

申请号：US16610949

申请日：2018-05-01

Applicant: MITSUBA Corporation

Inventor： Ryo OHORI ,  Naoki SHIODA ,  Tomoyasu SUGIYAMA ,  Masaki HAYATA

IPC: H02K29/08 ,  H02K11/215

Abstract: A brushless motor includes: a stator having a stator core and a winding; a rotor having a magnet; and a magnetic sensor for detecting the rotational position of the rotor. The rotor has a skew structure, and the magnet is skew-magnetized. The magnet has an overhang part. The magnetic sensor is disposed opposite to an axial end surface of the overhang part. The skew angle of the magnet is set in accordance with the angular deviation of sensor arrangement corresponding to motor specifications such as Δ-connection or sine wave drive in a state where the magnetic sensor is disposed at an optimum position less affected by a winding field.

公开(公告)号：US10583808B2

公开(公告)日：2020-03-10

申请号：US15580688

申请日：2016-05-31

Applicant: MITSUBA Corporation

Inventor： Masaaki Kimura ,  Hayato Saito

IPC: B60S1/08 ,  B60S1/18 ,  B60S1/04 ,  B60S1/26 ,  B60S1/28

Abstract: A wiper device is provided. An operating range of each of two sets of wiper arm units can be properly restricted. A first wiper arm unit is prevented from colliding with a first front pillar or a dash panel when a first output shaft of a first speed reduction mechanism has rotated beyond a first control angle, and a second wiper arm unit is prevented from colliding with a second front pillar or the dash panel when a second output shaft of a second speed reduction mechanism has rotated beyond a second control angle.

公开(公告)号：US10562213B2

公开(公告)日：2020-02-18

申请号：US15535706

申请日：2015-12-03

Applicant: Mitsuba Corporation

Inventor： Takao Umezawa

IPC: B29C45/06 ,  B29C45/00 ,  B29C45/16

Abstract: The present invention addresses the problem of manufacturing first and second members with different materials when molding injection molding body one after another using first to third molds disposed at 120 degrees from each other on a turntable that performs reciprocating motion at 120 degrees and using fourth to sixth molds provided opposite to the first to third molds, respectively. According to the solution, first to third injection devices are disposed on the sides of fourth to sixth molds, respectively, the first injection device is caused to perform primary injection to mold a first member, and the second and third injection devices are caused to perform primary injection to mold a second member and secondary injection to integrate the first and second members with each other, whereby the first and second members can be manufactured with different materials one after another.

公开(公告)号：US10533653B2

公开(公告)日：2020-01-14

申请号：US15525118

申请日：2015-11-09

Applicant: Mitsuba Corporation

Inventor： Osamu Nakamura ,  Atsushi Kawasaki

IPC: F16H57/039 ,  F16H1/16 ,  F16H57/04

Abstract: A motor with speed reduction mechanism is provided with an anti-scattering cover 80 for grease, which holds grease applied to a mating part MT where a worm 36b and a worm wheel 40 are in engagement with each other, the anti-scattering cover 80 for grease is provided and closer to an opening 32c than the worm wheel 40 along an axial direction of the worm wheel 40. The anti-scattering cover 80 for grease has: a first wall 81 extending from the opening 32c toward a bottom 32a and formed between the worm 36b and a side wall 32b of a speed reduction mechanism housing unit 32; and a second wall 82 extending in a direction intersecting with the first wall 81 and covering the mating part MT from the same side as the opening 32c along the axial direction of the worm wheel 40. The first wall 81 and the second wall 82 of the anti-scattering cover 80 for grease hold grease attached to the worm 36b, thereby preventing exhaustion of grease applied to the mating part MT where worm 36b and the worm wheel 40 are in engagement with each other.

公开(公告)号：US20190331208A1

公开(公告)日：2019-10-31

申请号：US16388895

申请日：2019-04-19

Applicant: MITSUBA Corporation

Inventor： KENJI SAKATA ,  HIROYUKI YOSHIDA ,  SATORU YOSHIDA

IPC: F16H57/021 ,  F16H1/16 ,  F16C21/00 ,  H02K7/08 ,  H02K7/116

Abstract: The motor with deceleration mechanism includes: a motor shaft (11), which is accommodated in a motor case (21) and in which an axial end portion (11a) is formed into a spherical shape; a worm, arranged on the motor shaft (11); a worm wheel, accommodated in a gear frame and engaging with the worm; a radial bearing (41), rotatably supporting the motor shaft (11); and a first thrust bearing (42), which is disposed inside the motor case (21), and in which a shaft facing surface (42s) facing the axial end portion (11a) of the motor shaft (11) and a counter shaft facing surface (42c) on the opposite side are respectively formed spherically; an average sliding radius between the first thrust bearing (42) and the motor case (21) is larger than an average sliding radius between the first thrust bearing (42) and the motor shaft (11).

公开(公告)号：US10411622B2

公开(公告)日：2019-09-10

申请号：US15776891

申请日：2016-12-22

Applicant: Mitsuba Corporation

Inventor： Takeshi Ikeda

IPC: H02P6/15 ,  H02P6/16

Abstract: The control part includes: a gate control voltage output unit that is configured to output a drive signal which switches a switching element according to a Hall edge that forms each of six Hall stages which are represented by a combination of electric potentials of position detection signals that are outputs of a plurality of sensors; a counter value acquisition unit that is configured to acquire a counter value which is a time period of the Hall stage and which is represented by a time period between two Hall edges that form each of the Hall stages from the position detection signal; and a switching control unit that is configured to determine a value obtained by multiplying a previous counter value of each of the Hall stages by a preset correction coefficient as a delay time of each of current Hall edges and that allows the gate control voltage output unit to output a drive signal according to each of the Hall edges which are corrected by the delay time.

公开(公告)号：US10411559B2

公开(公告)日：2019-09-10

申请号：US15522093

申请日：2015-10-26

Applicant: Mitsuba Corporation

Inventor： Yukiyoshi Iso

IPC: H02K9/02 ,  H02K3/28 ,  H02K7/116 ,  H02K5/04 ,  H02K11/33

Abstract: In a driving apparatus having a casing 10A in which an electric motor 16 is housed, the driving apparatus further has: a rotating shaft 27 through which a torque of the electric motor 16 is transmitted, the rotating shaft 27 being formed with a worm 40; a worm wheel 41 which is disposed in the casing 10A, the worm wheel 41 having a worm gear 42 which is engaged with the worm 40; a terminal holder 31 which is disposed in the casing 10A, and which supports a terminal carrying a current to be supplied to the electric motor 16; and an air hole 78 which extends so as to penetrate the casing 10A, an inside of the casing 10A and an outside of the casing 10A communicating with each other through the air hole 78, wherein in a plan view perpendicular to an axis C1 serving as a rotation center of the worm wheel 41, the air hole 78 is disposed in an area defined by projection of an area occupied by the terminal holder 31 in a direction along an axis B1, and between the electric motor and an engaging part E1 of the worm 40 with the worm gear 42.

公开(公告)号：US10374492B2

公开(公告)日：2019-08-06

申请号：US15454329

申请日：2017-03-09

Applicant: Mitsuba Corporation

Inventor： Kenji Yasumoto ,  Teppei Tokizaki ,  Shigeki Ota

IPC: H02K11/00 ,  H02K1/17 ,  H02K5/04 ,  H02K23/04 ,  H02K5/22 ,  B60S1/08 ,  H02K7/116 ,  H02K11/21 ,  H02K11/38 ,  H02K5/08 ,  H01R13/11 ,  H01R39/38 ,  H02K5/14

Abstract: A motor apparatus provided with a connector unit (40) to which an external connector is connected, wherein the connector unit (40) has a plurality of conductive members (64, 65, 66) arranged over a base portion (50) and a connector connecting portion (70) provided with a plug-in hole in which the external connector is plugged, wherein the conductive members (64, 65, 66) respectively include connector-side connecting portions (64a, 65a, 66a) connected to the external connector so as to face the connector connecting portion (70) from a first direction reversed to a plug-in direction of the external connector to the plug-in hole and base-side connecting portions (64b, 65b, 66b) connected to terminals or wirings provided in the base portion (50), wherein the connector-side connecting portions (64a, 65a, 66a) are respectively inserted into a plurality of insertion holes (74, 75, 76) provided at positions different from each other in a second direction intersecting the first direction, and wherein the base-side connecting portions (64b, 65b, 66b) are respectively arranged at the same position in the second direction.