公开(公告)号：US4707645A

公开(公告)日：1987-11-17

申请号：US924902

申请日：1986-10-30

申请人： Osami Miyao ,  Manabu Shiraki ,  Masayuki Ohsaka

发明人： Osami Miyao ,  Manabu Shiraki ,  Masayuki Ohsaka

IPC分类号： H02K29/00 ,  H02K29/08 ,  H02K23/00

CPC分类号： H02K29/08

摘要： A single-phase brushless motor which can rotate smoothly with minimized torque ripples without generating a cogging torque. A magnet rotor of the motor has north and south magnetic pole and non-magnetized zones successively formed in ranges thereof each having an angular width of 120 degrees in electrical angle, and a stator armature is mounted in an opposing relationship to the magnet rotor and includes an annular stator yoke on which a same number of stator coils for each of 3 phases are wound in a troidal configuration and successively located in an angularly spaced relationship by an electrical angle of 120 degrees. A position detecting element is located for detecting a magnetic pole or non-magnetized portion of the magnet rotor, and in response to signals successively developed from the position detecting element during rotation of the magnet rotor, an energization controlling circuit successively energizes the stator coils to rotate the magnet rotor in a predetermined direction.

摘要翻译： 单相无刷电动机可以最小化转矩波动平滑地旋转，而不会产生齿槽转矩。 电动机的磁铁转子具有北电磁极和非磁化区，其各自的角度宽度以电角度为120度依次形成，并且定子电枢以与磁体转子相对的关系安装，并且包括 一个环形定子磁轭，其中相位数量的定子线圈中的每一个以三相绕组形成并且以角度间隔的关系依次以120度的电角度定位。 位置检测元件用于检测磁体转子的磁极或非磁化部分，并且响应于在磁体转子旋转期间从位置检测元件连续产生的信号，通电控制电路将定子线圈依次通电 沿预定方向旋转磁体转子。

公开(公告)号：US5225725A

公开(公告)日：1993-07-06

申请号：US761888

申请日：1991-09-18

申请人： Manabu Shiraki ,  Osami Miyao ,  Masayuki Ohsaka ,  Masayuki Fujiwara ,  Daishi Yamaguchi

发明人： Manabu Shiraki ,  Osami Miyao ,  Masayuki Ohsaka ,  Masayuki Fujiwara ,  Daishi Yamaguchi

IPC分类号： H02K41/02

CPC分类号： H02K41/031

摘要： Disclosed herein is a linear d.c. motor comprising a field magnet composed of plural magnetic poles, and an armature formed by arranging armature coils along the moving direction of a moving element at a position facing the field magnet. One of the field magnet and armature is attached to the moving element, and the other is provided on a stator yoke serving as a stator. Projecting edges for linear guide, each of which projects outside and has a triangular form in cross section, are provided on both sides of the stator yoke, and guide rollers, each of which has an engaging groove in the form of a valley in its side part coming into slidable contact with the projecting edge for linear guide, are attached to the moving element. There is no possibility that the moving element is derailed because it is supported by the projecting edges of linear guide and the guide rollers. It is therefore possible to make the thrust of the moving element greater and cause it to travel at high speed.

摘要翻译： 本文公开的是线性直流 电动机，其包括由多个磁极构成的场磁体，以及电枢，其通过沿着与磁场磁体相对的位置沿着移动元件的移动方向布置电枢线圈而形成。 场磁体和电枢中的一个附接到移动元件，另一个设置在用作定子的定子轭上。 在定子磁轭的两侧设置有各自在外侧突出并具有三角形的直线导轨的突出边缘，每个导向辊在其侧面具有谷状形状的接合槽 与用于线性引导件的突出边缘滑动接触的部分附接到移动元件。 移动元件不会脱轨，因为它由直线导轨和导辊的突出边缘支撑。 因此，可以使移动元件的推力更大并使其高速行驶。

公开(公告)号：US5036319A

公开(公告)日：1991-07-30

申请号：US632627

申请日：1990-12-26

申请人： Manabu Shiraki ,  Osami Miyao ,  Shoji Fujisawa ,  Shunji Kawashima

发明人： Manabu Shiraki ,  Osami Miyao ,  Shoji Fujisawa ,  Shunji Kawashima

IPC分类号： G01D5/14 ,  G01D5/16 ,  G01D5/245 ,  H03M1/30

CPC分类号： G01D5/145 ,  G01D5/2451 ,  H03M1/30

摘要： An magnetic encoder includes a multipolar magnetic body having a row of alternate North and South poles of equal widths, and a magnetoresistive element diposed in confrontation to the multipolar magnetic body. The magnetoresistive element includes at least one A phase magnetoresistive element member and at least one B phase magnetoresisitve element disposed in juxtaposition over ##EQU1## where n is an integer greater than or equal to 1, and .lambda. is a width of each individual pole of the multiplar magnetic body. Each of the A phase magnetoresistive element members and the B phase magnetoresistive element member has a group of series connected linear conductors arranged side-by-side into a comb-like shape. The A phase magnetoresistive element member extends over ##EQU2## and the B phase magnetoresistive element member is out of phase with the A phase magnetoresistive element member by ##EQU3##

摘要翻译： 磁编码器包括具有相等宽度的交替的北极和南极的一行的多极磁体，以及与多极磁体对抗的磁阻元件。 磁阻元件包括至少一个A相磁阻元件和至少一个B相磁致伸缩元件，其以n为大于或等于1的整数设置，并且λ是每个单独的极的宽度 多磁体。 A相磁阻元件和B相磁阻元件各自具有并排配置成梳状形状的一组串联连接的线状导体。 A相磁阻元件构件通过延伸并且B相磁阻元件与A相磁阻元件构件异相，通过

公开(公告)号：US4724350A

公开(公告)日：1988-02-09

申请号：US909720

申请日：1986-09-22

申请人： Manabu Shiraki ,  Osami Miyao

发明人： Manabu Shiraki ,  Osami Miyao

IPC分类号： H02K29/08 ,  H02K21/14

CPC分类号： H02K29/08

摘要： A 1-phase disk-type brushless motor comprises a cogging-generating magnetic member or plate having a width substantially equal to the width of each pole of a magnet rotor and located at a specific position on a stationary printed circuit board so that the magnet rotor may stop with one pole thereof just opposed to the magnetic member, thereby assuring self-starting of the motor. The cogging generating magnetic member is shaped such that the volume or area may gradually decrease forwardly relative to the direction of rotation of the motor so that the cogging torque generated by the magnetic member may gradually increase upon starting of the motor, thereby assuring smooth rotation of the motor.

摘要翻译： 1相盘型无刷电动机包括具有与磁转子的每个磁极的宽度大致相等的位于固定印刷电路板上的特定位置处的齿槽产生磁性构件或板，使得磁体转子 可以以与磁性构件相对的一个极止停，从而确保电动机的自启动。 齿槽发生磁性部件成形为使得体积或面积可以相对于电动机的旋转方向向下逐渐减小，使得由电动机起动时由磁性部件产生的齿槽转矩可以逐渐增加，从而确保平滑的旋转 电机。

公开(公告)号：US4739203A

公开(公告)日：1988-04-19

申请号：US923088

申请日：1986-10-24

申请人： Osami Miyao ,  Manabu Shiraki

发明人： Osami Miyao ,  Manabu Shiraki

IPC分类号： H02K29/08 ,  H02K37/00

CPC分类号： H02K29/08

摘要： A single-phase brushless motor which can rotate smoothly by a uniform torque over an entire range of rotation with reduced torque ripples, without generating a high cogging torque for allowing self-starting of the motor. The motor comprises a field magnet as a rotor having 2P north and south magnetic poles, either the north or the south poles having a width equal to an electrical angle of about 120 degrees while the other poles have a width equal to an electrical of about 240 degrees. The field magnet is mounted for rotation in an opposing relationship to a stator armature core which has a plurality of radially extending stator poles formed in a circumferentially equidistantly spaced relationship thereon. A plurality of stator coils for two phases are wound selectively on the stator poles. An electric circuit detects the position of the field magnet to energize the armature coils for the two phases alternately for an electric angle of about 180 degrees.

摘要翻译： 一种单相无刷电动机，可以在整个旋转范围内通过均匀的转矩平稳地旋转，同时减小转矩波动，而不会产生高的齿槽转矩，以允许电机的自启动。 电动机包括作为具有2P南北磁极的转子的磁场磁体，北极或南极的宽度等于约120度的电角度，而另一个极的宽度等于约240的电 度。 磁场磁体被安装成与定子电枢磁芯相对旋转的旋转，该定子电枢磁芯具有多个径向延伸的定子极，其形成在其上沿周向等距间隔的关系。 用于两相的多个定子线圈选择性地缠绕在定子极上。 电路检测场磁体的位置，以使两相的电枢线圈以约180度的电角度交替地通电。

公开(公告)号：US4733119A

公开(公告)日：1988-03-22

申请号：US909719

申请日：1986-09-22

申请人： Manabu Shiraki ,  Osami Miyao

发明人： Manabu Shiraki ,  Osami Miyao

IPC分类号： H02K29/08 ,  H02K21/14

CPC分类号： H02K29/08

摘要： A 1-phase coreless disk-type brushless motor or axial-flow brushless fan motor comprises a single position-detecting element located at a position on a printed circuit board corresponding to one of the magnetically active conductor portions of a stator coil or coils of the stator armature. A cogging-generating stator yoke having a cutaway portion of a specifically determined angular width is positioned relative to the stator coils, such that an end of the cutaway portion thereof is spaced by a distance equal to about one fourth of the pole width from another magnetically active conductor portion of the stator coils, so that the magnet rotor may stop at a position from which the motor can start itself. Various forms of such cogging generating stator yoke are disclosed, including a stator yoke which also serves as a circuit board.

摘要翻译： 1相无芯无磁盘式无刷电动机或轴流式无刷风扇电动机包括位于印刷电路板上的与定子线圈的一个磁性有效导体部分相对应的位置的单个位置检测元件或 定子电枢。 具有特定确定的角宽度的切口部分的齿槽产生定子线圈相对于定子线圈定位，使得其切除部分的端部间隔相当于磁极宽度的约四分之一的距离 定子线圈的有源导体部分，使得磁体转子可以停在电动机可以从其自身开始的位置。 公开了这种齿槽产生定子磁轭的各种形式，包括也用作电路板的定子磁轭。

公开(公告)号：US4728833A

公开(公告)日：1988-03-01

申请号：US919662

申请日：1986-10-16

申请人： Manabu Shiraki ,  Osami Miyao

发明人： Manabu Shiraki ,  Osami Miyao

IPC分类号： H02K29/00 ,  H02K29/08

CPC分类号： H02K29/08

摘要： A 1-phase brushless motor comprises a single position-detecting element located at a stationary position corresponding to a magnetically active conductor portion of an armature coil of an armature member. The position-detecting element is either a magnetoelectric transducer or a position-detecting coil. A plastics magnet is molded integrally with the armature coil and is magnetized such that it cooperates with a field magnet as a rotor to generate a field magnet attracting and repulsing torque within a particular range from a dead point, so as to stop the field magnet at a position from which the motor can start itself.

摘要翻译： 单相无刷电动机包括位于与电枢构件的电枢线圈的磁性有效导体部分对应的静止位置的单个位置检测元件。 位置检测元件是磁电换能器或位置检测线圈。 塑料磁体与电枢线圈一体地模制并被磁化，使得它与作为转子的磁场磁体配合，以在死区的特定范围内产生磁场吸引和排斥转矩，以便将磁场磁铁停止在 电机可以自动启动的位置。

公开(公告)号：US4836631A

公开(公告)日：1989-06-06

申请号：US888425

申请日：1986-07-23

申请人： Kikuo Shimazu ,  Kazuo Suzuki ,  Manabu Shiraki ,  Osami Miyao

发明人： Kikuo Shimazu ,  Kazuo Suzuki ,  Manabu Shiraki ,  Osami Miyao

IPC分类号： G02B26/12 ,  H02K29/08 ,  H02K29/14

CPC分类号： H02K29/08 ,  G02B26/121 ,  H02K29/14

摘要： A laser scanning motor includes a coreless flat brushless motor disposed in a rotatable polygonal mirror having polygonal outer mirror surfaces. A light beam applied to the polygonal mirror is deflected by controlling the rotation of the coreless flat brushless motor. Poles and a bearing holder of the coreless flat brushless motor in a rotor assembly are formed of a plastic magnetic material. When manufacturing the laser scanning motor, the poles and the bearing holder are formed simultaneously by filling the plastic magnetic material in one operation, and then firmly securing the poles and bearing holder to the rotor assembly.

摘要翻译： 激光扫描电动机包括设置在具有多边形外镜表面的可旋转多面镜中的无芯平面无刷电动机。 通过控制无芯平坦无刷电动机的旋转，施加到多面镜的光束被偏转。 转子组件中的无芯平面无刷电动机的极子和轴承座由塑料磁性材料形成。 当制造激光扫描电机时，通过在一次操作中填充塑料磁性材料，同时将磁极和轴承座同时形成，然后将电极和轴承座牢固地固定到转子组件上。

公开(公告)号：US4757222A

公开(公告)日：1988-07-12

申请号：US905309

申请日：1986-09-09

申请人： Manabu Shiraki ,  Osami Miyao

发明人： Manabu Shiraki ,  Osami Miyao

IPC分类号： H02K29/08 ,  H02K11/00

CPC分类号： H02K29/08 ,  Y10S310/06

摘要： A 1-phase energized disk-type brushless motor or fan motor comprises a single position detecting element located at a position on a printed circuit board corresponding to one of magnetically active conductor portions of one of stator coils of the stator armature. The magnetically active conductor portions include a width substantially equal to the width of each pole of the magnet rotor. A cogging generating magnetic member or plate having a width substantially equal to the pole width is located on the printed circuit board such that it is spaced by about three fourths of the pole width from one of the conductor portions of one of the stator coils so that the magnet rotor may stop with one pole thereof just opposed to the magnetic member, thereby assuring self-starting of the motor and uniform turning torque over the entire rotation of the motor.

摘要翻译： 1相通电盘式无刷电动机或风扇电动机包括位于印刷电路板上与定子电枢的一个定子线圈的一个磁性有效导体部分相对应的位置的单个位置检测元件。 磁性有源导体部分包括基本上等于磁体转子的每个极的宽度的宽度。 具有基本上等于极宽度的宽度的齿槽发生磁性构件或板位于印刷电路板上，使得它们之一与定子线圈中的一个的导体部分中的一个间隔约3/4的极宽度，使得 磁体转子可以与刚好与磁性构件相对的一个磁极停止，从而确保电动机的自启动和电动机整个旋转时的均匀的转矩。

公开(公告)号：US4725752A

公开(公告)日：1988-02-16

申请号：US909709

申请日：1986-09-22

申请人： Manabu Shiraki ,  Osami Miyao

发明人： Manabu Shiraki ,  Osami Miyao

IPC分类号： H02K29/08

CPC分类号： H02K29/08

摘要： A 1-phase coreless disk-type brushless motor comprises a single position-detecting element located at a stationary position corresponding to a magnetically active conductor portion of an armature coil or coils on a stator yoke. A cogging-generating magnetic element having a width substantially equal to the width of each pole of a field magnet is located such that the center radial line between the width thereof is spaced by a distance equal to about three fourths of the pole width from another magnetically active conductor portion of the armature coil or coils so that the magnet rotor may stop at a position from which the motor can start itself.

摘要翻译： 1相无芯盘型无刷电动机包括位于与电枢线圈的磁性有效导体部分或定子磁轭上的线圈对应的静止位置的单个位置检测元件。 具有基本上等于场磁体的每个磁极的宽度的宽度的齿槽产生磁性元件被定位成使得其宽度之间的中心径向线间隔相当于磁极宽度的大约三分之三的极距 电枢线圈或线圈的有源导体部分，使得磁体转子可以停在电动机可以从其自身开始的位置。