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公开(公告)号：US5371426A
公开(公告)日：1994-12-06
申请号：US64018
申请日：1993-05-19
CPC分类号： H02K1/2746
摘要： A rotor (31) of a brushless motor includes a rotary shaft (32), a main yoke (33) fitted over the rotary shaft, two magnetic pole heads (34a, 34b) radially projecting from the main yoke, two permanent magnets (36a, 36b) provided on the yoke between the magnetic pole heads such that the magnetic poles of identical polarity face each other across the rotary shaft, two auxiliary yokes (38a, 38b) mounted on the permanent magnets, and a cylindrical sleeve (40) made of a non-magnetic material provided on the outer circumferential surface of the magnetic pole heads and the auxiliary yokes.
摘要翻译： PCT No.PCT / JP91 / 00927 Sec。 371日期：1993年5月19日 102（e）日期1993年5月19日PCT提交1991年7月10日PCT公布。 公开号WO92 / 09131 日本1991年5月29日。无刷电动机的转子（31）包括旋转轴（32），安装在旋转轴上的主轭（33），两个磁极头（34a，34b）从主轭 设置在磁极头之间的磁轭上的两个永磁体（36a，36b），使得相同极性的磁极相对于旋转轴彼此面对，安装在永磁体上的两个辅助磁轭（38a，38b）和 设置在磁极头的外周面上的非磁性材料制成的圆柱形套筒（40）和辅助轭。
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公开(公告)号：US5359248A
公开(公告)日：1994-10-25
申请号：US39066
申请日：1993-04-08
CPC分类号： H02K15/03
摘要： A permanent magnet rotor (1) used in a corrosive atmosphere or liquid and provided with field permanent magnets (10) inserted into slots (9) of a lamination of silicon steel plates (2), wherein the outer surfaces of the field permanent magnets (10) are covered with anticorrosive plates made of an antiicorrosive material. The field permanent magnets (10) of the permanent rotor (1) can be used without being corroded, and the rotor (1) can be easily manufactured.
摘要翻译： PCT No.PCT / JP91 / 00926 Sec。 371日期：1993年4月8日 102（e）日期1993年4月8日PCT 1991年7月10日PCT公布。 公开号WO92 / 07407 日本1992年04月30日。一种用于腐蚀性气体或液体的永久磁铁转子（1），并且设置有插入硅钢板（2）的叠层的槽（9）中的现场永磁体（10），其中外 现场永磁体（10）的表面被由防腐蚀材料制成的防锈板覆盖。 永磁转子（1）的励磁永磁体（10）可以不被腐蚀地使用，并且可以容易地制造转子（1）。
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公开(公告)号：US5369325A
公开(公告)日：1994-11-29
申请号：US983585
申请日：1993-02-04
CPC分类号： H02K1/2746 , H02K1/2766 , H02K11/01 , H02K15/03 , H02K9/20 , H02K7/04
摘要： A rotor having permanent magnets for a brushless electromotor includes a yoke formed from a plurality of silicon steel sheets laminated together and provided along its outer periphery with even number of, at least four magnetic poles. The magnetic poles are alternately provided substantially at equal distances from a rotational axis with slots to receive the respective permanent magnets such that the sides of the permanent magnets facing a rotary shaft have the same polarity. As a result, a compact and efficient rotor is obtained, and damage to or flying off of the permanent magnets is prevented.
摘要翻译： PCT No.PCT / JP91 / 00925 Sec。 371日期：1993年2月4日 102（e）1993年2月4日PCT PCT 1991年7月10日PCT公布。 出版物WO92 / 01326 日本1992年1月23日。具有用于无刷电动机的永磁体的转子包括由多个硅钢板形成的磁轭，所述磁轭层叠在一起，并且沿其外周设置有至少四个磁极。 磁极交替地设置在与具有狭槽的旋转轴线基本相等的距离处，以容纳相应的永磁体，使得面对旋转轴的永磁体的侧面具有相同的极性。 结果，获得了紧凑且有效的转子，并且防止了永磁体的损坏或飞离。
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公开(公告)号：USRE36367E
公开(公告)日：1999-11-02
申请号：US758472
申请日：1996-11-29
CPC分类号： H02K1/2746 , H02K11/01 , H02K15/03 , H02K9/20 , H02K7/04
摘要： A rotor having permanent magnets for a brushless electromotor includes a yoke formed from a plurality of silicon steel sheets laminated together and provided along its outer periphery with even number of, at least four magnetic poles. The magnetic poles are alternately provided substantially at equal distances from a rotational axis with slots to receive the respective permanent magnets such that the sides of the permanent magnets facing a rotary shaft have the same polarity. As a result, a compact and efficient rotor is obtained, and damage to or flying off of the permanent magnets is prevented.
摘要翻译： PCT No.PCT / JP91 / 00925 Sec。 371日期：1993年2月4日 102（e）1993年2月4日PCT PCT 1991年7月10日PCT公布。 出版物WO92 / 01326 日本1992年1月23日具有用于无刷电动机的永磁体的转子包括由多个硅钢板形成的磁轭，所述磁轭层叠在一起，并且沿其外周设置有至少四个磁极。 磁极交替地设置在与具有狭槽的旋转轴线基本相等的距离处，以容纳相应的永磁体，使得面对旋转轴的永磁体的侧面具有相同的极性。 结果，获得了紧凑且有效的转子，并且防止了永磁体的损坏或飞离。
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公开(公告)号：US5508576A
公开(公告)日：1996-04-16
申请号：US343860
申请日：1994-11-17
IPC分类号： C08L23/02 , C08L23/16 , C08L67/02 , C08L77/00 , H02K1/27 , H02K7/04 , H02K9/20 , H02K11/00 , H02K15/03 , H02K21/12 , H02K1/32
CPC分类号： H02K1/2746 , C08L23/02 , C08L67/02 , C08L77/00 , H02K11/01 , H02K15/03 , H02K9/20 , C08L23/16 , H02K7/04
摘要： A rotor having permanent magnets for a brushless electromotor includes a yoke formed from a plurality of silicon steel sheets laminated together and provided along its outer periphery with even number of, at least four magnetic poles. The magnetic poles are alternately provided substantially at equal distances from a rotational axis with slots to receive the respective permanent magnets such that the sides of the permanent magnets facing a rotary shaft have the same polarity. As a result, a compact and efficient rotor is obtained, and damage to or flying off of the permanent magnets is prevented.
摘要翻译： 具有用于无刷电动机的永磁体的转子包括由多个硅钢板形成的磁轭，所述多个硅钢板层压在一起并沿其外周设置有至少四个磁极。 磁极交替地设置在与具有狭槽的旋转轴线基本相等的距离处，以容纳相应的永磁体，使得面对旋转轴的永磁体的侧面具有相同的极性。 结果，获得了紧凑且有效的转子，并且防止了永磁体的损坏或飞离。
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公开(公告)号：US5703449A
公开(公告)日：1997-12-30
申请号：US615073
申请日：1996-03-14
申请人： Takashi Nagate , Akihito Uetake , Yoshikazu Koike , Kunio Tabata
发明人： Takashi Nagate , Akihito Uetake , Yoshikazu Koike , Kunio Tabata
CPC分类号： H02K1/2746 , H02K29/12 , H02P6/14 , H02P6/18 , H02P6/21
摘要： A controller according to one embodiment restarts the motor when a commutation timing signal is mismatched with an output pattern mode. A controller according to another embodiment compares the motor speed with the reference signal to change the chopper frequency in accordance with the compared value. A controller according to still another embodiment continuously changes the chopper frequency in accordance with the motor speed. A controller according to yet another embodiment inhibits the position detection immediately after commutation in accordance with the current flowing through the motor. A controller according to another embodiment detects the position of the rotor in accordance with the waveform of the current flowing through the motor.
摘要翻译： 根据一个实施例的控制器在换向定时信号与输出模式模式不匹配时重启电动机。 根据另一实施例的控制器将电机速度与参考信号进行比较，以根据所比较的值改变斩波频率。 根据另一实施例的控制器根据电动机速度连续地改变斩波器频率。 根据另一个实施例的控制器根据流过电动机的电流在紧随换向之后禁止位置检测。 根据另一实施例的控制器根据流过马达的电流的波形来检测转子的位置。
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公开(公告)号：US6047460A
公开(公告)日：2000-04-11
申请号：US863417
申请日：1997-05-27
CPC分类号： H02K1/276 , H02K15/03 , Y10T29/49009 , Y10T29/49012
摘要： A method of manufacturing a permanent magnet rotor comprising a rotor yoke (2) of a rotor (1) which is formed by laminating a large number of steel sheets (4), (14), (24), (34) and (44), has 2n times (n is a positive integer) of magnetic poles (5) on the outer periphery, has slots (6) at the bases of all or every other magnetic poles at a substantially equal distance from a rotatable shaft hole (7), and has permanent magnets (3) for a field inserted into the slots, and a method for producing it. It has a structure that the permanent magnets for the field are prevented from coming out, or the permanent magnets for the field have their faces treated in order to improve the safety and reliability of the permanent magnet rotor.
摘要翻译： 一种制造永磁转子的方法，该永磁转子包括通过层叠大量钢板（4），（14），（24），（34）和（44）形成的转子（1）的转子轭（2） ）在外周具有2n倍（n为正整数）的磁极（5），在与可旋转轴孔（7）大致相等的距离处的全部或者每隔一个磁极的基部具有槽（6） ），并且具有用于插入槽中的场的永磁体（3）及其制造方法。 其具有防止永磁铁出来的结构，或者为了提高永磁转子的安全性和可靠性，现场的永久磁铁的表面被处理。
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公开(公告)号：US20080291405A1
公开(公告)日：2008-11-27
申请号：US12112662
申请日：2008-04-30
申请人： Takashi Nagate , Taisuke Yamauchi
发明人： Takashi Nagate , Taisuke Yamauchi
IPC分类号： G03B21/20
CPC分类号： G03B21/2053 , G03B21/2086 , H04N9/3155
摘要： A projector includes: an operation unit which receives operation by a user; a projection unit which projects light corresponding to an image signal; and a light intensity control unit which controls light intensity of the light projected by the projection unit. The light intensity control unit controls the light intensity in the order of reception of plural operations received by the operation unit from the user.
摘要翻译： 投影机包括：操作单元，其接收用户的操作; 投影单元，其投射与图像信号对应的光; 以及光强度控制单元，其控制由所述投影单元投影的光的光强度。 光强度控制单元按照接收来自用户的操作单元接收的多个操作的顺序控制光强度。
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公开(公告)号：US5864191A
公开(公告)日：1999-01-26
申请号：US915637
申请日：1997-08-21
摘要： An efficient permanent magnet rotor for a brushless motor has a yoke (2) formed by laminating many steel sheets (4) so as to provide an even number of magnetic poles projected externally, filed permanent magnets (3) inserted in the magnetic poles, bridges (10) provided at either end of the permanent magnets and having a width, among a first minimum width below which said bridges cannot be punched out without breaking, a maximum width at which an allowable maximum number of magnetic fluxes passes through said bridges, and a second minimum width below which said bridges cannot withstand a centrifugal force caused by rotation of said permanent magnet rotor, (1) equal to or larger than the greater one of the first and second minimum widths and smaller than the maximum width when the first and second minimum widths are equal to or smaller than the maximum width, or (2) equal to or larger than the greater one of the first and second minimum widths when said greater one of the first and second minimum widths is equal to or larger than the maximum width, and (3) equal to or larger than the thickness of each of said steel sheets.
摘要翻译： 一种用于无刷电动机的有效的永磁转子具有通过层叠多个钢板（4）而形成的轭（2），以便提供偶数个外部突出的磁极，插入磁极的永磁体（3），桥 （10），设置在所述永磁体的任一端并且具有宽度，所述第一最小宽度在所述桥不能被打破而不断裂的第一最小宽度内，允许的最大数量的磁通量通过所述桥的最大宽度;以及 第二最小宽度，在该第二最小宽度下，所述桥不能承受由所述永磁转子的旋转引起的离心力，（1）等于或大于第一和第二最小宽度中的较大者，并且小于最大宽度时，当第一和 第二最小宽度等于或小于最大宽度，或（2）等于或大于第一和第二最小宽度中的较大者之一， d最小宽度等于或大于最大宽度，和（3）等于或大于每个所述钢板的厚度。
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10.发明授权Projector having a light intensity control unit for controlling light intensity of projected light and control method of projector 有权投影仪具有用于控制投射光的光强度的光强度控制单元和投影仪的控制方法公开(公告)号：US07919742B2
公开(公告)日：2011-04-05
申请号：US12112662
申请日：2008-04-30
申请人： Takashi Nagate , Taisuke Yamauchi
发明人： Takashi Nagate , Taisuke Yamauchi
IPC分类号： G01J1/32
CPC分类号： G03B21/2053 , G03B21/2086 , H04N9/3155
摘要： A projector includes: an operation unit which receives operation by a user; a projection unit which projects light corresponding to an image signal; and a light intensity control unit which controls light intensity of the light projected by the projection unit. The light intensity control unit controls the light intensity in the order of reception of plural operations received by the operation unit from the user.
摘要翻译： 投影机包括：操作单元，其接收用户的操作; 投影单元，其投射与图像信号对应的光; 以及光强度控制单元，其控制由所述投影单元投影的光的光强度。 光强度控制单元按照接收来自用户的操作单元接收的多个操作的顺序控制光强度。
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