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1. 发明专利

JP2009273194A Rotating electric machine 有权
标题翻译：旋转电机
公开(公告)号：JP2009273194A
公开(公告)日：2009-11-19
申请号：JP2008118647
申请日：2008-04-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKIGUCHI RYUICHI , NAKA KOKI , MIYAZAKI TAKASHI , NAKAYAMA MISA
IPC分类号： H02K15/16
摘要： PROBLEM TO BE SOLVED: To obtain a rotating electric machine in which a rotor and a stator can be inserted while preventing interference between them, and inertia is reduced for a guide member after insertion of the rotor and the stator.
SOLUTION: The rotating electric machine is provided with: a cylindrical frame 41; a stator 30 held in the frame; a bracket 42 having an outer circumferential portion attached on the end of the frame 41 and holding a bearing 43 on the inner circumferential portion; a rotor 20 consisting of a shaft 22 supported by the bearing 43 and a rotor core 21 supported by the shaft 22 and the rotor core 21 being disposed in the stator 30; and a guiding member 44 attached on the rotor core 21 so that its outer circumferential portion protrudes in a diameter direction from the outer circumferential portion of the rotor core 21 when the rotor 20 is inserted into the stator 30, and detached from the rotor core 21 after insertion.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够插入转子和定子的旋转电机，同时防止它们之间的干涉，并且在插入转子和定子之后引导构件的惯性减小。解决方案：旋转电机设置有：圆柱形框架41; 保持在框架中的定子30; 支架42，其具有安装在框架41的端部上的外周部分，并且在内周部分上保持轴承43; 由轴承43支撑的轴22和由轴22支撑的转子芯21和设置在定子30中的转子芯21组成的转子20; 以及引导构件44，其安装在转子芯21上，使得当转子20插入定子30中时，外圆周部分从转子芯21的外圆周部分的直径方向突出，并且从转子芯21 插入后。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2004180491A Permanent magnet type dynamo-electric machine and apparatus 审中-公开
公开(公告)号：JP2004180491A
公开(公告)日：2004-06-24
申请号：JP2003349579
申请日：2003-10-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAGUCHI SHINICHI , YONETANI HARUYUKI , KIKUCHI TOMOHIRO , MIYAZAKI TAKASHI
IPC分类号： H02K15/02 , H02K1/27 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet type dynamo-electric machine and apparatus, capable of reducing the cogging torque more efficiently than the case, in which the theoretical angle is adopted for a stepped skew angle, and is also capable of reducing torque ripples.
SOLUTION: The permanent magnet type dynamo-electric machine and apparatus includes a rotor 30 provided with four tiers of permanent magnets 32a, 32b, 32c, 32d in the axial direction on the circumferential surfaces of a rotor core 31, and a stator having a stator winding that generates a magnetic field which causes the rotor 30 to rotate in the inner perimeter of the stator core. Between the permanent magnets 32a and 32b, and between 32c and 32d, there are provided stepped skew angles θ
e1 (electrical angles), with the lower limit values being set to not smaller than 30° and with upper limit values being set equal to 52°.
COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004159492A Permanent magnet rotary electric machine 有权
公开(公告)号：JP2004159492A
公开(公告)日：2004-06-03
申请号：JP2003349042
申请日：2003-10-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAGUCHI SHINICHI , YONETANI HARUYUKI , KIKUCHI TOMOHIRO , MIYAZAKI TAKASHI
IPC分类号： H02K1/18 , H02K1/27 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet rotary electric machine in which cogging torque can be reduced efficiently as compared with a case employing a theoretical angle in step skew angle and torque ripple can also be reduced.
SOLUTION: The permanent magnet rotary electric machine comprises a rotor 30 provided, on the circumferential surface of a rotor core 31, with two stages of permanent magnets 32a and 32b in the axial direction, and a cylindrical stator 20 provided, on the inner circumference of the stator core 21, with a stator winding 22 generating a rotating field for rotating the rotor 30. Lower limit value of stage skew angle θ
e (electric angle) between two stages of permanent magnets 32a and 32b is set larger than 30° (electric angle) and, from the relation between the stage skew angle θ
e and the cogging torque ratio represented by the ratio of cogging torque when stage skew is applied and cogging torque when the stage skew angle θ
e is 0, cogging torque ratio at 30° is determined depending on the flux density-magnetizing force characteristics and the maximum value of stage skew angle θ
e in such a range as the cogging torque ratio is not larger than the determined cogging torque is employed as the upper limit.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2011250690A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2011250690A
公开(公告)日：2011-12-08
申请号：JP2011169925
申请日：2011-08-03
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： HASEGAWA HARUYUKI , OTSUKA HISASHI , MIYAZAKI TAKASHI
IPC分类号： H02K5/24 , H02K5/04
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine that can reduce cogging torque caused by distortion of a magnetic circuit in a stator core that occurs due to unevenness in stress applied to the stator core, while maintaining mechanical strength and machinability in its stator structure.SOLUTION: In a rotary electric machine having a rotor with magnetic poles and a stator whose stator core is fixed by a stator-core fixing member 10, the stator is provided with a groove 14 or a hole so that the stator's cross-sectional shape is changed in the axial direction. The groove 14 extends in an oblique direction to a rotational axis on an outer peripheral surface or an inner peripheral surface of the stator-core fixing member 10, while the hole extends in the oblique direction to the rotational axis in the stator-core fixing member 10.
摘要翻译：要解决的问题：提供一种旋转电机，其能够减少由于施加到定子铁心的应力的不均匀而导致的定子铁芯中的磁路的变形引起的齿槽转矩，同时保持机械强度和机械加工性其定子结构。解决方案：在具有带磁极的转子和定子芯由定子芯固定构件10固定的旋转电机中，定子设置有槽14或孔，使得定子的横截面截面形状在轴向上变化。槽14沿着与定子铁心固定部件10的外周面或内周面的旋转轴线倾斜的方向延伸，同时孔在与定子铁芯固定部件10的旋转轴线倾斜的方向上延伸（C）2012，JPO＆INPIT

5. 发明专利

JP2011067090A Permanent magnet motor and permanent magnet linear motor 有权
标题翻译：永磁电机和永磁电机线性电机
公开(公告)号：JP2011067090A
公开(公告)日：2011-03-31
申请号：JP2010259698
申请日：2010-11-22
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KASEYAMA MORIYUKI , INOUE MASAYA , MIYAZAKI TAKASHI , MATSUBARA HIROKI
IPC分类号： H02K1/16 , H02K1/18 , H02K1/27 , H02K21/14 , H02K41/03
摘要： PROBLEM TO BE SOLVED: To provide a motor having auxiliary grooves on teeth of a stator core, which reduces cogging torque without changing a shape of a press die or the like even when the width of the auxiliary groove is slightly out of an ideal shape because of variation among lots of core materials or machining errors.
SOLUTION: The motor includes a rotor 8 having magnetic poles of a plurality of permanent magnets 6, and a stator 5 formed by laminating stator cores 1 having a plurality of teeth 2 facing the permanent magnets 6. Auxiliary grooves 4 are provided on a part of the plane facing the permanent magnets 6 of the teeth 2. When a ratio of the number of magnet poles of the rotor 8 to the number of slots of the stator 5 is m:n, and a groove width angle of the auxiliary groove 4 where (l×k)f component (k: the least common multiple of m and n, l: an integer of 1 or more, and f: a fundamental wave component) of cogging torque becomes minimum is α, the stator 5 is formed by laminating a first stator core having a groove width angle of the auxiliary groove 4 which is larger than α and a second stator core without auxiliary grooves.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种在定子芯的齿上具有辅助槽的电动机，即使当辅助槽的宽度略微偏离了一个时，也可以减小齿槽转矩而不改变压模的形状等理想的形状，因为大量的芯材料或加工误差的变化。解决方案：电动机包括具有多个永磁体6的磁极的转子8和通过层叠具有面对永磁体6的多个齿2的定子铁心1形成的定子5.辅助槽4设置在平面面对齿2的永磁体6的一部分。当转子8的磁极数与定子5的槽数之比为m：n时，辅助的槽宽度凹槽4其中（1×k）f分量（k：m和n的最小公倍数，1：整数1或更大，f：基波分量）为最小的定子5 是通过层叠具有大于α的辅助槽4的槽宽度角的第一定子铁芯和没有辅助槽的第二定子铁心形成的。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011055706A Permanent-magnet rotating machine 有权
标题翻译：永磁转动机
公开(公告)号：JP2011055706A
公开(公告)日：2011-03-17
申请号：JP2010277084
申请日：2010-12-13
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAGUCHI SHINICHI , YONETANI HARUYUKI , KIKUCHI TOMOHIRO , MIYAZAKI TAKASHI
IPC分类号： H02K1/27 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide a permanent-magnet rotating machine which reduces cogging torque fundamental wave components as well as harmonic components.
SOLUTION: The permanent-magnet rotating machine includes: a rotor having a rotor core in which permanent magnets are arranged in two rows on an outer circumference along an axial direction, and the permanent magnets in one row are skewed from those in the other row in a circumferential direction of the rotor core by a row-to-row skew angle θe (electrical angle); and a stator having a tubular stator core in which the rotor is disposed and a stator coil is provided for producing a rotating magnetic field for rotating the rotor. Based on the magnetic characteristics of the rotor core, a relation between a row-to-row skew angle and a cogging torque of the fundamental wave component of cogging torque is calculated, and a row-to-row skew angle whose cogging torque becomes smaller than a cogging torque when a row-to-row skew angle is a theoretical angle θs (electric angle) is set as the row-to-row skew angle θe.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种减少齿槽转矩基波分量以及谐波分量的永磁旋转机。永磁旋转机械包括：具有转子芯的转子，转子芯沿永久磁铁沿着轴向在外圆周上排列成两排，一列中的永磁体与转子铁芯的圆周方向的另一排通过行到行的倾斜角θe（电角度）; 以及具有管状定子铁心的定子，转子配置在该定子铁芯中，并且设有定子线圈，用于产生用于旋转转子的旋转磁场。基于转子铁芯的磁特性，计算齿槽转矩的基波分量的行排斜角与齿槽转矩之间的关系，齿槽转矩变小的行排斜角当行 - 行倾斜角为理论角θs（电角度）时的齿槽转矩设定为行间行偏斜角θe。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2011010548A Method of manufacturing permanent magnet synchronous motor 有权
标题翻译：制造永磁同步电机的方法
公开(公告)号：JP2011010548A
公开(公告)日：2011-01-13
申请号：JP2010232462
申请日：2010-10-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TODE YUKARI , DAIKOKU AKIHIRO , NAKANO MASATSUGU , ARITA HIDEAKI , YAMAGUCHI SHINICHI , KASEYAMA MORIYUKI , YOSHIOKA TAKASHI , KIKUCHI TOMOHIRO , HAYAMIZU KATSUMI , MIYAZAKI TAKASHI
IPC分类号： H02K1/18 , H02K29/03
CPC分类号： H02K29/03 , H02K1/187 , Y10T29/49004 , Y10T29/49009 , Y10T29/49012
摘要： PROBLEM TO BE SOLVED: To achieve a method of manufacturing a permanent magnet synchronous motor in which a cogging torque having a pulsation component that is the same degree as the number of poles 2p of a magnet is reduced to be as close to zero as possible by separating combined individual causes of cogging torque and ensuring reduction measures for causes having large amplitude at a prototype stage, and adjusting procedures such that, regarding characteristics of which the amplitude cannot be reduced due to manufacturing circumstances, characteristics having controllable phases are overlapped and canceled.SOLUTION: In the method of manufacturing the permanent magnet synchronous motor by fixing a stator core within a frame, with a specific portion of the frame and a specific portion of the stator core serving as reference positions, respectively, both areas are positioned with a specific positional relationship and subsequently fixed.
摘要翻译：要解决的问题：为了实现一种永磁同步电动机的制造方法，其中具有与磁体的极数2p相同程度的脉动分量的齿槽转矩尽可能地减小到接近于零的方式分离齿轮转矩的组合个体原因，并确保在原型阶段具有大幅度原因的减少措施，以及调整程序，使得关于由于制造环境而不能降低幅度的特性，具有可控相位的特性被重叠和抵消。解决方案：在永磁同步电动机的制造方法中，通过将定子铁芯固定在框架内，分别具有框架的特定部分和定子铁芯的特定部分作为基准位置，两个区域分别具有位置关系，随后修正。

8. 发明专利

JP2009118739A Manufacturing method of permanent magnet type rotating electric machine, and the permanent magnet type rotating electric machine 有权
标题翻译：永磁式旋转电机的制造方法和永磁式旋转电机
公开(公告)号：JP2009118739A
公开(公告)日：2009-05-28
申请号：JP2009052163
申请日：2009-03-05
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAGUCHI SHINICHI , YONETANI HARUYUKI , KIKUCHI TOMOHIRO , MIYAZAKI TAKASHI
IPC分类号： H02K1/27 , H02K1/18 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a permanent-magnet type rotating electric machine, whereby not only the fundamental components of its cogging torque is reduced, but also the higher harmonic components of its cogging torque are reduced.
SOLUTION: With respect to the manufacturing method of the permanent-magnet type rotating electrical machine having a rotor and a stator, in the rotor, two-stage permanent magnets provided in its axial direction are so disposed on the outer peripheral surface of its core that the permanent magnets are made skew, in its core periphery direction by a stage-skewing angle of θe (electrical angle) and is interposed between the two stages. Furthermore, in the stator, the rotor is disposed in its inside, and its cylindrical core has a stator winding for so generating a rotating magnetic field as to rotate the rotor. Moreover, the relation existing between the stage-skewing angle and the fundamental component of a cogging torque of the rotating electrical machine is searched from the magnetic characteristics of the rotor core. Furthermore, a stage-skewing angle such that the cogging torque becomes smaller than the one obtained when the stage-skewing angle is equal to a theoretical angle of θs (electric angle), is set as the stage-skewing angle of θe.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：为了提供一种永磁式旋转电机的制造方法，不仅减小了其齿槽转矩的基本成分，还降低了其齿槽转矩的高次谐波成分。解决方案：关于具有转子和定子的永久磁铁式旋转电机的制造方法，在转子中，沿其轴向设置的两级永久磁铁设置在转子和定子的外周面上它的核心是使永久磁铁在其核心周边方向上以阶梯倾斜角度θe（电角度）偏斜并置于两个阶段之间。此外，在定子中，转子设置在其内部，并且其圆筒形芯具有定子绕组，以便产生使转子旋转的旋转磁场。此外，从转子铁芯的磁特性中搜索旋转电机的齿槽转矩的平台倾斜角度与基波分量之间的关系。此外，将倾斜转矩变得小于当倾斜角度等于理论角度θs（电角度）时获得的齿槽转矩的台阶倾斜角被设定为阶梯倾斜角θe。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008271652A Permanent magnet type rotary electric machine 有权
标题翻译：永磁式旋转电机
公开(公告)号：JP2008271652A
公开(公告)日：2008-11-06
申请号：JP2007108433
申请日：2007-04-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAGUCHI SHINICHI , MIYAZAKI TAKASHI , OTSUKA HISASHI , HASEGAWA HARUYUKI
IPC分类号： H02K1/27 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide an embedded permanent magnet type rotary electric machine capable of reducing a cogging torque, a torque ripple and a reluctance torque and improving a torque output and having the cogging torque and current-torque characteristics same as those of a surface magnet type permanent magnet type rotary electric machine.
SOLUTION: The permanent magnet type rotary electric machine is provided with a rotary iron core whose external circumferential surface has a plurality of arc-like curved surfaces, a permanent magnet whose cross sectional shape vertical in a rotary axis direction has an arc-like curved surface, and a rotor in which the permanent magnet is embedded at a position near the external circumferential surface spaced by predetermined distance from the external circumferential surface of the rotary iron core.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种嵌入式永磁式旋转电机，其能够减少齿槽转矩，转矩波动和磁阻转矩，并提高扭矩输出，并具有与齿轮转矩和电流 - 转矩特性相同的齿槽转矩和电流 - 转矩特性的表面磁体型永磁式旋转电机。解决方案：永磁式旋转电机设有旋转铁芯，其外周表面具有多个弧形曲面，截面形状在旋转轴线方向上具有弧形的永磁体，以及转子，其中永磁体嵌入在与旋转铁芯的外周表面间隔开预定距离的外周表面附近的位置。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2008228515A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2008228515A
公开(公告)日：2008-09-25
申请号：JP2007066678
申请日：2007-03-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： HASEGAWA HARUYUKI , OTSUKA HISASHI , MIYAZAKI TAKASHI
IPC分类号： H02K5/04 , H02K1/18 , H02K1/28
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine that reduces cogging torque caused by distortion of a magnetic circuit in a stator core that occurs due to unevenness in stress applied to the stator core, while maintaining mechanical strength and machinablitiy in the rotary electric machine, particularly, in its stator structure.
SOLUTION: The rotary electric machine has a rotor with magnetic poles and a stator whose stator core is fixed by a stator-core fixing member. A vertical cross-sectional shape of the stator-core fixing member with respect to a rotary shaft is changed into a rotation symmetry centering around the rotary shaft in front of and at the back of a position dividing the magnetic pole of the rotor perpendicularly to the rotary shaft.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种旋转电机，其减小由于施加到定子铁芯的应力不均匀而导致的定子铁芯中的磁路的变形引起的齿槽转矩，同时保持机械强度和机械加工性旋转电机，特别是定子结构。解决方案：旋转电机具有带磁极的转子和定子，定子芯通过定子芯固定构件固定。定子芯固定部件相对于旋转轴的垂直截面形状在与转子的垂直方向分割转子的磁极的前方和后方的位置处以旋转轴为中心转动为旋转对称旋转轴。版权所有（C）2008，JPO＆INPIT

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