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    ELECTRIC MOTOR
    11.
    发明申请
    ELECTRIC MOTOR 审中-公开
    电动马达

    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”。

    MOTOR WITH SPEED REDUCTION MECHANISM
    12.
    发明申请
    MOTOR WITH SPEED REDUCTION MECHANISM 有权
    具有减速机构的电动机

    公开(公告)号：US20150180314A1

    公开(公告)日：2015-06-25

    申请号：US14638502

    申请日：2015-03-04

    Applicant: Mitsuba Corporation

    Inventor： Hiroto Tanaka ,  Takeshi Kanai ,  Masaaki Kimura ,  Koji Tsuchiya

    IPC: H02K9/28 ,  H02K13/00 ,  H02K11/00 ,  H02K7/116

    CPC classification number: H02K9/28 ,  H02K5/148 ,  H02K5/18 ,  H02K7/1166 ,  H02K11/33 ,  H02K13/006

    Abstract: In a brush holder accommodating part 26d of a gear housing 26, paired flat surface parts 26c and paired curved parts 26b are alternately disposed so as to be formed into an elliptical shape, one of the paired flat surface parts is formed with first heat sinks 26i, and two brushes 20 and 20 mounted on a brush holder unit 19 accommodated in the brush holder accommodating part 26d are disposed near the first heat sinks 26i.

    Abstract translation: 在齿轮壳体26的刷架容纳部26d中，成对的平面部26c和成对的弯曲部26b交替地配置成形成为椭圆形状，一对平面部中的一个形成有第一散热片26i 并且安装在容纳在电刷架容纳部26d中的电刷架单元19上的两个电刷20和20设置在第一散热器26i附近。

    MOTOR WITH SPEED REDUCER, AND REAR WIPER MOTOR
    13.
    发明申请
    MOTOR WITH SPEED REDUCER, AND REAR WIPER MOTOR 有权

    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

    IPC: H02K5/24 ,  B60S1/26 ,  H02K7/116 ,  H02K11/33 ,  F16D65/00 ,  H02K7/10

    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.

    BRUSHLESS MOTOR, WIPER APPARATUS, MOTOR APPARATUS, AND CONTROL METHOD FOR MOTOR APPARATUS
    17.
    发明申请
    BRUSHLESS MOTOR, WIPER APPARATUS, MOTOR APPARATUS, AND CONTROL METHOD FOR MOTOR APPARATUS 审中-公开
    无刷马达，雨刮器，马达装置及电机装置的控制方法

    公开(公告)号：US20160322921A1

    公开(公告)日：2016-11-03

    申请号：US15107658

    申请日：2014-12-22

    Applicant: MITSUBA CORPORATION

    Inventor： Tomohiko Annaka ,  Hiroto Tanaka ,  Naoki Kojima ,  Toru Furusawa ,  Tomofumi Kobayashi

    IPC: H02P6/10 ,  B60S1/08 ,  B60S1/16 ,  H02P27/08

    CPC classification number: H02P6/10 ,  B60S1/08 ,  B60S1/166 ,  H02P27/08

    Abstract: A brushless motor (18) which supplies currents to coils (U1, U2, V1, V2, W1, and W2) and rotates a rotor (27), the brushless motor comprising a control apparatus (37) which switches and selectively executes: first energization control to start energization to the coils (U1, U2, V1, V2, W1, and W2) at first timing, and to continue the energization for a first period to control the rotation number of the rotor (27); and second energization control to start energization to the coils (U1, U2, V1, V2, W1, and W2) at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor (27).

    Abstract translation: 1.一种无刷电动机，其向线圈（U1，U2，V1，V2，W1，W2）提供电流并使转子​​（27）旋转，所述无刷电动机包括切换并选择性地执行的控制装置（37）：第一 通电控制在第一定时开始向线圈（U1，U2，V1，V2，W1和W2）通电，并且继续通电第一时段以控制转子（27）的转数; 以及第二通电控制，在相对于第一定时以电角度推进的第二定时向线圈（U1，U2，V1，V2，W1和W2）通电，并且继续通电第二时段 控制转子（27）的旋转数的第一时段。

    BRUSHLESS MOTOR AND WIPER APPARATUS
    18.
    发明申请
    BRUSHLESS MOTOR AND WIPER APPARATUS 有权
    无刷电机和刮水器

    公开(公告)号：US20150082575A1

    公开(公告)日：2015-03-26

    申请号：US14394628

    申请日：2013-04-16

    Applicant: Mitsuba Corporation

    Inventor： Masaaki Kimura ,  Hiroto Tanaka ,  Tamotsu Iwazaki ,  Tomohiko Annaka ,  Naoki Kojima ,  Junya Kitazawa

    IPC: H02P6/14 ,  B60S1/16 ,  B60S1/08 ,  H02P6/08 ,  H02P6/22

    CPC classification number: H02P6/153 ,  B60S1/08 ,  B60S1/0818 ,  B60S1/0896 ,  B60S1/166 ,  B60S1/26 ,  H02K7/1166 ,  H02K11/215 ,  H02P6/08 ,  H02P6/16 ,  H02P6/182 ,  H02P6/22 ,  H02P23/009 ,  H02P2207/05

    Abstract: A brushless motor comprises: a stator 21 having armature coils 21a, 21b, and 21c; a rotor 22 which is rotated by a revolving magnetic field; and a switching element 30a, wherein the brushless motor has a rotation number control unit 33 which switches between low-speed and high-speed mode, wherein in the low-speed mode, the rotation number control unit 33 supplies current to the armature coils 21a, 21b, and 21c at predetermined energization timing and controls a duty ratio to control the rotation number of the rotor 22, and in the high-speed mode, the rotation number control unit 33 supplies current to the armature coils 21a, 21b, and 21c at energization timing advanced from the energization timing for the low-speed mode, thereby performing field weakening control of weakening the revolving magnetic field from that of the low-speed mode to control the rotation number of the rotor 22.

    Abstract translation: 无刷电动机包括：具有电枢线圈21a，21b和21c的定子21; 由旋转磁场旋转的转子22; 以及开关元件30a，其中无刷电动机具有在低速和高速模式之间切换的转数控制单元33，其中在低速模式中，转数控制单元33向电枢线圈21a提供电流 ，21b，21c，控制占空比来控制转子22的转数，在高速模式中，转数控制部33向电枢线圈21a，21b，21c供给电流 在从低速模式的通电定时提前的通电定时中，进行弱化与低速模式的旋转磁场的弱磁控制，以控制转子22的旋转数。

    Brushless wiper motor
    19.
    发明授权
    Brushless wiper motor 有权

    公开(公告)号：US10116186B2

    公开(公告)日：2018-10-30

    申请号：US14780184

    申请日：2014-03-26

    Applicant: Mitsuba Corporation

    Inventor： Takeshi Kanai ,  Hiroto Tanaka ,  Tomohiko Annaka ,  Naoki Kojima ,  Hirokazu Shoda

    IPC: H02K7/116 ,  H02K9/22 ,  B60S1/16 ,  H02K5/02 ,  H02K11/33 ,  H02K5/16 ,  H02K5/18 ,  H02K5/22 ,  H02K11/00

    Abstract: A motor case (31) in which a stationary portion (35) is fixed, and a gear case (41) in which a gear mechanism (SD) is accommodated are made of aluminium, most heat generated from the stationary portion (35) at the time of actuation of a brushless wiper motor (20) can be directly dissipated outside from the motor case (31). That is, compared with conventional technique, heat transmitted to the motor case (31) can be efficiently dissipated outside, and the motor case (31) does not reach high temperature. Therefore, as a matter of course, reduction in size and weight can be achieved, suppression of electromagnetic noise can be achieved, and heat-resistance strength can be enhanced. Expensive components capable of resisting high temperatures are not required, and reduction in manufacturing cost can be achieved.

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