公开(公告)号：US20100264772A1

公开(公告)日：2010-10-21

申请号：US12761935

申请日：2010-04-16

申请人： Tomohiro AOYAMA ,  Kuniaki MATSUMOTO ,  Toshio YAMAMOTO

发明人： Tomohiro AOYAMA ,  Kuniaki MATSUMOTO ,  Toshio YAMAMOTO

IPC分类号： H02K3/28

CPC分类号： H02K23/32 ,  H02K23/34

摘要： A direct current motor is provided that includes an armature core, a commutator, coils, positive brushes, and negative brushes. The armature core includes a stator. The stator has magnets the number of which is represented by P (where P is an even number greater than or equal to six). The coils are wound about the teeth by duplex wave winding. Alternatively, the coils are wound about the teeth such that each pair of coils that are spaced apart by 180° are connected common ones of the segments. Each of the positive brushes and the negative brushes has an angular width WB, at which it slides on the segments. When the angular width of the arrangement pitch of the segments is represented by WP (WP=360°/the number of the segments), and the angular width of the clearance between each pair of circumferentially adjacent segments is represented by WU, the angular width WB is set to satisfy the expression: WB≦(4/P)×WP+WU.

摘要翻译： 提供直流电动机，其包括电枢铁芯，换向器，线圈，正刷和负电刷。 电枢铁心包括定子。 定子具有数量由P表示的磁体（其中P是大于或等于6的偶数）。 线圈通过双相绕线缠绕在齿上。 或者，线圈围绕齿缠绕，使得间隔开180°的每对线圈连接到共同的段。 正刷和负刷中的每一个具有角宽度WB，在该宽度WB上它在段上滑动。 当通过WP（WP = 360°/段的数量）表示段的排列间距的角宽度，并且每对周向相邻的段之间的间隙的角宽度由WU表示时，角宽度 WB设置为满足以下表达式：WB＆nlE;（4 / P）×WP + WU。

公开(公告)号：US20090121574A1

公开(公告)日：2009-05-14

申请号：US12267929

申请日：2008-11-10

申请人： Tomohiro AOYAMA ,  Toshio YAMAMOTO ,  Kazumitsu MORIYA

发明人： Tomohiro AOYAMA ,  Toshio YAMAMOTO ,  Kazumitsu MORIYA

IPC分类号： H02K3/28

CPC分类号： H02K23/26

摘要： A direct current motor is disclosed. The motor includes a stator, a commutator, an armature core, and brushes. The stator has a yoke and magnetic poles. The magnetic poles are arranged at a predetermined pitch along a circumferential direction of the yoke. The number of the magnetic poles is represented by the expression: 2×P (P is an integer not less than 2). The commutator has segments that are arranged in a circumferential direction of the commutator. The number of the segments is represented by the expression: P×N (N is an odd number not less than 3). The armature core is rotatable integrally with the commutator and includes teeth provided by the number represented by the expression: 2×P×N. A coil is wound around the teeth by distributed winding. Each one of the brushes is pressed against and contacts the segments. Two of the segments that are electrically short-circuited by one of the brushes are connected to each other by at least two coils that are arranged at an interval corresponding to an integral multiple of the pitch (360°/(2×P)) of the magnetic poles.

摘要翻译： 公开了一种直流电动机。 电动机包括定子，换向器，电枢芯和电刷。 定子有磁轭和磁极。 磁极沿轭的圆周方向以预定间距排列。 磁极的数量由以下表达式表示：2xP（P是不小于2的整数）。 换向器具有沿换向器的圆周方向排列的段。 段数由以下表达式表示：PxN（N是不小于3的奇数）。 电枢铁芯与整流子一体地旋转，并包括由下列数字表示的齿：2xPxN。 线圈通过分布绕组缠绕在牙齿周围。 电刷中的每一个都被按压并与片段接触。 由电刷之一电短路的两个片段通过至少两个线圈相互连接，所述至少两个线圈以对应于磁体的间距（360°/（2xP））的整数倍的间隔排列 两极