公开(公告)号：US10605341B2

公开(公告)日：2020-03-31

申请号：US15792760

申请日：2017-10-25

申请人： TIMOTION TECHNOLOGY CO., LTD.

发明人： Chou-Hsin Wu

IPC分类号： F16H27/02 ,  F16H29/02 ,  F16H25/20 ,  H02K23/20 ,  H02K7/14 ,  H02K7/116 ,  H02K5/14 ,  H02K7/06

摘要： An actuator with switchable releasing speed includes an actuation rod, a screw, and a motor. The motor drives the screw rotating so that the actuation rod axially moves relative to the screw. The motor includes a stator, a rotor, a plurality of commutators, and at least three brushes. The at least three brushes have a positive brush, a negative brush, and at least one auxiliary brush. The positive brush is connected to a positive DC voltage. One of the negative brush and the least one auxiliary brush is adjusted to connect to a negative DC voltage so as to change a rotational speed of the rotor, thereby controlling a movement speed of the actuation rod. Accordingly, the releasing speed of the actuator is switchable.

公开(公告)号：USRE45912E1

公开(公告)日：2016-03-01

申请号：US14152113

申请日：2014-01-10

申请人： MITSUBA Corporation

发明人： Kenji Sakata ,  Yoshichika Kawashima

IPC分类号： H02K3/28 ,  H02K23/20

CPC分类号： H02K23/20 ,  H02K23/30 ,  Y02T10/641

摘要： In an electric motor, magnets (4) have two pairs of poles, the number of teeth (9) is 18, and the number of segments (14) of a commutator is 18. Winding wires (12, 25) for forming an armature coil (7) are formed by a first conductive wire (110) or a second conductive wire (120). The winding wire (25) has a first coil winding wire (7A) and a second coil winding wire (7B). The coil winding wires are each wound around four teeth (9) adjacent to each other. An end (31) of the second coil winding wire is connected to a segment (14) adjacent to a segment arranged at a position which is point symmetric with respect to a segment to which an end (30) of the first coil winding wire is connected. According to the invention, in the electric motor capable of changing the rotational speed of the armature by switching application of an electric current among three brushes, vibration and operating noise can be reduced, and mounting of the connecting wires and the winding wires can be facilitated.

公开(公告)号：US20090066179A9

公开(公告)日：2009-03-12

申请号：US12061793

申请日：2008-04-03

申请人： Yoshiki NAKANO ,  Kuniaki MATSUMOTO

发明人： Yoshiki NAKANO ,  Kuniaki MATSUMOTO

IPC分类号： H02K23/20

CPC分类号： H02K23/20 ,  H02K3/527 ,  H02K13/04

摘要： A slide surface of each segment defines a plane orthogonal to an axial direction of a direct current motor. A power supply brush is pressed against and contacted with the slide surface. The power supply brush includes a main brush and a sub-brush. The sub- brush has electrical resistance that is higher than that of the main brush. At least the main brush supplies an armature with power. The sub-brush is arranged more inward in the radial direction of the commutator than the main brush.

摘要翻译： 每个段的滑动表面限定与直流电动机的轴向正交的平面。 电源刷被压紧并与滑动表面接触。 电源电刷包括主电刷和副电刷。 子刷具有高于主刷的电阻。 至少主电刷为电枢供电。 副刷子比主刷子在换向器的径向方向上更靠内侧布置。

公开(公告)号：US20090009023A1

公开(公告)日：2009-01-08

申请号：US12280909

申请日：2007-01-18

申请人： Thomas Weigold ,  Christian Schneider ,  Andreas Saum

发明人： Thomas Weigold ,  Christian Schneider ,  Andreas Saum

IPC分类号： H02K23/20

CPC分类号： H02K23/20

摘要： The invention describes an electrical machine having an armature with armature slots for accommodating armature coils. At least one armature coil is formed from two coil elements which are arranged symmetrically with respect to one another in relation to an axis of symmetry, which runs through the center-point of the armature shaft. The coil elements are connected to two adjacent commutator laminates of a commutator. A first brush, a second brush and a third brush bear against the commutator in a manner such that they can slide. The second brush interacts with the first brush or the third brush. The third brush is arranged in relation to the two coil elements in such a way that, when the two adjacent commutator laminates come into contact with one another, the third brush and the center-point of the armature shaft form an axis which has an angle of 90 DEG−(180 DEG/number of laminates)−(180 DEG/3×number of laminates) up to 90 DEG +(180 DEG/number of laminates)+(180 DEG/3×number of laminates) in relation to the axis of symmetry of the two coil elements.

摘要翻译： 本发明描述了一种电机，其具有用于容纳电枢线圈的电枢槽的电枢。 至少一个电枢线圈由两个线圈元件形成，两个线圈元件相对于贯穿电枢轴的中心点的对称轴线彼此对称地布置。 线圈元件连接到换向器的两个相邻的换向片层压板。 第一刷子，第二刷子和第三刷子以能够滑动的方式抵靠换向器。 第二个刷子与第一个刷子或第三个刷子相互作用。 第三刷子相对于两个线圈元件布置成使得当两个相邻的换向器层压体彼此接触时，第三电刷和电枢轴的中心点形成一个具有角度的轴线 相对于对称轴，90°（180°/层压板数） - （180°/ 3x层压板）至90°+（180°/层压板）+（180°/ 3x层数） 的两个线圈元件。

公开(公告)号：US5744890A

公开(公告)日：1998-04-28

申请号：US634230

申请日：1996-04-18

申请人： Mineo Yamaguchi ,  Takayuki Kitagawa

发明人： Mineo Yamaguchi ,  Takayuki Kitagawa

IPC分类号： H02K23/36 ,  H01R39/58 ,  H02K23/20 ,  H02P7/06 ,  H02K13/00

CPC分类号： H02P7/06 ,  H02K23/20 ,  H01R39/58

摘要： A brush structure for a motor is provided for realizing an equalization of wear of brushes without causing an early wear of a specific brush while not necessitating a complicated conduction controlling device. A first brush, which is one of four brushes, conducted at both Lo mode and Me mode is formed to have a larger sliding contact area for contacting a commutator slidably compared with a sliding contact area of a second brush which is conducted at Hi mode only. Current density in the first brush at Lo mode and Me mode becomes smaller than current density at Hi mode.

摘要翻译： 提供一种用于电动机的电刷结构，用于实现电刷磨损的均衡，而不会引起特定电刷的早期磨损，而不需要复杂的导电控制装置。 在Lo模式和Me模式下进行的四个电刷之一的第一电刷被形成为具有较大的滑动接触面积，用于与仅在Hi模式下传导的第二电刷的滑动接触区域可滑动地接触换向器 。 Lo模式和Me模式下第一个刷子中的电流密度变得比Hi模式下的电流密度小。

公开(公告)号：US5594290A

公开(公告)日：1997-01-14

申请号：US473175

申请日：1995-06-07

申请人： Larry S. Shannon ,  David W. Welch ,  Daniel P. Bexten

发明人： Larry S. Shannon ,  David W. Welch ,  Daniel P. Bexten

IPC分类号： H01R39/26 ,  H02K23/20 ,  H02K13/10

CPC分类号： H01R39/26 ,  H02K23/20 ,  H02K5/145 ,  H02K2213/03

摘要： A multi-speed, direct current motor (120) incorporates a high speed (24) brush disposed between the low speed (22) and the common ground (26) brushes and having a non-arcuate end face (25) which, unlike the conventional arcuate brush end face (23,27), is not subject to speed-drift erosion. The non-arcuate end face (25) is configured of two offset surfaces (55,65 & 57,67) which intersect to provide a line of contact (43) between the end face (25) of the high speed brush (24) and the commutator (40) which is displaced from the center line of the high speed brush (24) in a direction counter to the direction of rotation of the motor, that is toward the leading edge (21) of the brush (24). The intersecting surfaces (55,65 & 57,67) may comprise either flat planar surfaces or contoured surfaces.

摘要翻译： 多速直流电动机（120）包括设置在低速（22）和公共地面（26）电刷之间的高速（24）电刷，并且具有非弧形端面（25），其不同于 常规弧形刷端面（23,27），不受速度漂移侵蚀。 非弧形端面（25）由两个偏移表面（55,65和57,67）构成，它们相交以在高速电刷（24）的端面（25）之间提供接触线（43） 以及与电动机的旋转方向相反的方向（即朝向电刷24的前缘21）从高速电刷24的中心线偏移的换向器40。 相交表面（55,65和57,67）可以包括平坦平面或轮廓表面。

公开(公告)号：US5485049A

公开(公告)日：1996-01-16

申请号：US248777

申请日：1994-05-25

申请人： Larry S. Shannon ,  David W. Welch ,  Daniel P. Bexten

发明人： Larry S. Shannon ,  David W. Welch ,  Daniel P. Bexten

IPC分类号： H01R39/26 ,  H02K23/20 ,  H02K13/00

CPC分类号： H01R39/26 ,  H02K23/20 ,  H02K5/145 ,  H02K2213/03

摘要： A multi-speed, direct current motor (120) incorporates a high speed (24) brush disposed between the low speed (22) and the common ground (26) brushes and having a non-arcuate end face (25) which, unlike the conventional arcuate brush end face (23,27), is not subject to speed-drift erosion. The non-arcuate end face (25) is configured of two offset surfaces (55,65 & 57,67) which intersect to provide a line of contact (43) between the end face (25) of the high speed brush (24) and the commutator (40) which is displaced from the center line of the high speed brush (24) in a direction counter to the direction of rotation of the motor, that is toward the leading edge (21) of the brush (24). The intersecting surfaces (55,65 & 57,67) may comprise either flat planar surfaces or contoured surfaces.

摘要翻译： 多速直流电动机（120）包括设置在低速（22）和公共地面（26）电刷之间的高速（24）电刷，并且具有非弧形端面（25），其不同于 传统弧形刷端面（23,27），不受速度漂移侵蚀。 非弧形端面（25）由两个偏移表面（55,65和57,67）构成，它们相交以在高速电刷（24）的端面（25）之间提供接触线（43） 以及与电动机的旋转方向相反的方向（即朝向电刷24的前缘21）从高速电刷24的中心线偏移的换向器40。 相交表面（55,65和57,67）可以包括平坦平面或轮廓表面。

公开(公告)号：US5311615A

公开(公告)日：1994-05-10

申请号：US766811

申请日：1991-09-26

申请人： Herve Couetoux

发明人： Herve Couetoux

IPC分类号： H02K23/20 ,  H02P7/285

CPC分类号： H02P7/285 ,  H02K23/20 ,  Y10S388/934

摘要： The invention provides a method of commutation control, for changing the speed of a direct current electric motor of the constant flux type, having an encapsulated inductive winding with n poles, each of which is supplied by a separate brush. In this method, a speed at a level i, where i is in the range 1 to n-1 inclusive, is obtained by connecting a group of i+1 brushes to the terminal of the direct current supply source. The state of connection of the brushes is modified in accordance with a control characteristic which comprises modifying the composition of the group of i+1 brushes to be connected in order to obtain a motor speed at a predetermined level i, and/or by interrupting the connection of one of two consecutive brushes to the brush previously connected during a speed changing operation.

摘要翻译： 本发明提供了一种用于改变恒流通型的直流电动机的速度的换向控制方法，该方法具有一个具有n个磁极的封装的感应绕组，每个磁极由独立的电刷提供。 在该方法中，通过将一组i + 1个电刷连接到直流电源的端子来获得I级（其中i在1到n-1的范围内）的速度。 电刷的连接状态根据控制特性进行修改，该控制特性包括修改要连接的i + 1个电刷组的组成，以获得在预定电平i的电动机速度，和/或通过中断 将两个连续的刷子中的一个连接到在变速操作期间预先连接的刷子。

公开(公告)号：US3536974A

公开(公告)日：1970-10-27

申请号：US3536974D

申请日：1968-02-29

申请人： BOSCH GMBH ROBERT

发明人： BEIGL EDMUND ,  GUTSCHKE SIEGFRIED

IPC分类号： B60J7/057 ,  H02H7/085 ,  H02K23/20 ,  H02P7/14 ,  H02P7/08

CPC分类号： B60J7/0573 ,  H02H7/0851 ,  H02H7/0853 ,  H02K23/20 ,  H02P7/14

公开(公告)号：US2993133A

公开(公告)日：1961-07-18

申请号：US78740459

申请日：1959-01-19

申请人： ALLIS LOUIS CO

发明人： NORMAN HORACE M

IPC分类号： H02K23/20

CPC分类号： H02K23/20