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1. 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。

2. 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

3. 发明专利

JP2003284276A Dynamo-electric machine 审中-公开
标题翻译： DYNAMO-ELECTRIC MACHINE
公开(公告)号：JP2003284276A
公开(公告)日：2003-10-03
申请号：JP2002083265
申请日：2002-03-25
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： H02K1/26 , H02K1/27 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To effectively reduce cogging torque.
SOLUTION: The dynamo-electric machine is provided with a rotor 30 placed in the center of a ring-shaped stator 40 so that it is rotatable around a prescribed rotational core, and a plurality of permanent magnets 32N, 32S placed along the direction of the rotational core of the rotor 30 in an area on the rotor 30 facing the stator and in such a way that the circumferential positions are mutually staggered. A magnetic insulation layer 43 comprising a non- magnetic material is provided on the stator 40 in a region facing the gap between the permanent magnets 32N, 32S adjacent to each other in the direction of the rotational core of the rotor 30.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：有效减少齿槽转矩。解决方案：发电机设置有转子30，该转子30放置在环形定子40的中心，使得其能够围绕规定的旋转芯部旋转，并且沿着该定子40放置的多个永磁体32N，32S 转子30的旋转芯的方向在转子30上面向定子的区域中，并且使得圆周位置相互错开。包括非磁性材料的磁性绝缘层43在面向与转子30的旋转芯的方向相邻的永磁体32N，32S之间的间隙的区域中设置在定子40上。（C）2004，JPO

4. 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

5. 发明专利

JP2005020930A Permanent magnet rotating electric machine 有权
标题翻译：永磁电动机
公开(公告)号：JP2005020930A
公开(公告)日：2005-01-20
申请号：JP2003184351
申请日：2003-06-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YONETANI HARUYUKI , YAMAGUCHI SHINICHI , KIKUCHI TOMOHIRO , TAMURA TAKASHI
IPC分类号： H02K1/22 , H02K1/27 , H02K21/14 , H02K29/03
CPC分类号： H02K1/278 , H02K29/03 , H02K2201/06
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet rotating electric machine which can realize high output density by making magnetic flux density larger while reducing the magnetic flux density compared with when cogging torque is made as a theoretical skew angle. SOLUTION: The permanent magnet rotating electric machine is provided with a rotor, in which the permanent magnet with a plurality of magnetic poles is circumferentially arranged and a skew is provided to the boundary line of the magnetic poles of the permanent magnet, and a nearly cylindrical stator in which the rotor is arranged inside and a plurality of projection poles projecting inwardly are formed. The upper limit value of the skew angle is set to a value smaller than the following theoretical angle θ S (an electric angle) and the lower limit value is set to a value larger than the half of the theoretical angle θ S . However, it is set so that θ S = 180 × (the number of the magnetic poles of the rotor)/(the least common multiple of the number of the magnetic poles of the rotor and the number of the magnetic poles of the stator)[deg.]. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种永久磁铁旋转电机，其与当齿槽转矩作为理论倾斜角度相比时，可以使磁通密度更大，同时降低磁通密度，从而实现高输出密度。解决方案：永磁旋转电机设置有转子，其中具有多个磁极的永久磁铁沿周向布置，并且在永磁体的磁极的边界线处设置有偏斜，以及形成有转子布置在内部并且向内突出的多个突起极的近似圆柱形的定子。偏斜角度的上限值被设定为比以下的理论角度θ S （电角度）的值，将下限值设定为比理论值的一半大的值角度θS 。然而，设定为θ = 180×（转子的磁极数）/（转子的磁极数的最小公倍数，定子的磁极）°。版权所有（C）2005，JPO＆NCIPI

6. 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

7. 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

8. 发明专利

JP2005080416A Rotating electric machine 有权
标题翻译：旋转电机
公开(公告)号：JP2005080416A
公开(公告)日：2005-03-24
申请号：JP2003308373
申请日：2003-09-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAGUCHI SHINICHI , YONETANI HARUYUKI , FUJINO CHIYO , KIKUCHI TOMOHIRO , MIYAZAKI TAKASHI
IPC分类号： H02K1/06 , H02K1/18 , H02K5/04 , H02K29/03
CPC分类号： H02K5/06 , H02K1/185 , H02K29/03
摘要： PROBLEM TO BE SOLVED: To maintain the mechanical strength and machinability of a frame and reduce cogging torque arising from strain in the magnetic circuit of a core due to the shape of the frame.
SOLUTION: A rotating electric machine comprises a stator that has the frame 20 and whose number Ns of stator slots is 12; and a rotor that is disposed in the internal space of the stator, and whose number Np of rotor poles is 8. Gaps 201 and 202 for stress relaxation are formed in part of the frame in such positions at a mechanical angle of 90° that rotational symmetry is not provided. These gaps are so formed that, when the frame thickness T(θ) at a mechanical angle of θ around the center of the inner circumference of the frame, relative to a line connecting the center and an arbitrary point other than the center, is Fourier series-expanded in the circumferential direction, and the difference between the number Ns of stator slots and the number Np of rotor magnetic poles is let to be k (=|Ns-Np|), the sum P of the contents of the kth-order component T
k and the Npth order component T
Np of the Fourier series expansion coefficient with a frame thickness of T(θ), expressed as Equation (2), will be 12% or less.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了保持框架的机械强度和机械加工性，并且由于框架的形状，减小了由于芯的磁路中的应变引起的齿槽转矩。解决方案：旋转电机包括具有框架20的定子，其定子槽数Ns为12; 以及转子，其设置在定子的内部空间中，转子极数Np为8.在框架的一部分中，在机械角度为90°的位置处形成用于应力松弛的间隙201和202，旋转没有提供对称性。这些间隙形成为：当围绕框架内周的中心的机械角度θ（θ）相对于连接中心和除了中心之外的任意点的线的框架厚度T（θ）是傅里叶沿圆周方向串联扩展，定子槽数Ns与转子磁极数Np之间的差设为k（=¾Ns-Np¾），第k次分量的内容的和P 具有T（θ）的帧厚度的傅立叶级数展开系数的Npth阶分量T SB = N P 表示为等式（2），将为12％或更少。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2003339129A Permanent magnet dynamo-electric machine 审中-公开
标题翻译：永磁电动机
公开(公告)号：JP2003339129A
公开(公告)日：2003-11-28
申请号：JP2002143239
申请日：2002-05-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YONETANI HARUYUKI , YAMAGUCHI SHINICHI , KIKUCHI TOMOHIRO , MIYAZAKI TAKASHI
IPC分类号： H02K1/22 , H02K1/27 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet type dynamo-electric machine, capable of reducing cogging torque by reducing leakage flux in the axial direction, without causing the magnetomotive force to be reduced.
SOLUTION: In the permanent magnet dynamo-electric machine, permanent magnets are arranged at the multi-stage in the axial direction. The respective permanent magnets arranged in the axial direction are displaced one by one in the circumferential direction. The corners of the permanent magnet are cut so that magnetic poles with different polarities of magnets forming respective stages, which are adjacent to each other, do not face each other in the axial direction. The corner cutting part is arranged at linearly symmetric position, with respect to a line parallel with the axial direction of the magnet or at 180° rotationally symmetric position, with respect to the center of the magnet.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种永磁式发电机，其能够通过减小轴向的漏磁通而减少齿槽转矩，而不会降低磁动势。
解决方案：在永磁发电机中，永磁体沿轴向多级排列。沿轴向配置的各永久磁铁在圆周方向上一个接一个地移位。切断永磁体的角部，使得形成相互相邻的各个阶段的具有不同极性的磁体的磁极在轴向方向上彼此不相对。角部切削部相对于与磁体的轴向平行的线或相对于磁体的中心的180°旋转对称位置配置在线性对称位置。版权所有（C）2004，JPO

10. 发明专利

JP2003088058A MAGNETIZING EQUIPMENT OF PERMANENT MAGNET ROTOR 审中-公开
公开(公告)号：JP2003088058A
公开(公告)日：2003-03-20
申请号：JP2001275850
申请日：2001-09-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： IWAMI TAIZO , KIKUCHI TOMOHIRO , MIYAZAKI TAKASHI , TATSUMI SHIRO , NAKAHARA YUJI
IPC分类号： H02K15/03
摘要： PROBLEM TO BE SOLVED: To obtain magnetizing equipment wherein magnetizing efficiency can be improved. SOLUTION: This magnetizing equipment of a permanent magnet rotor is provided with a cylindrical magnetic member which is arranged so as to surround a rotor 1 having a plurality of permanent magnets which are not yet magnetized and arranged in the circumference direction interposing specified gaps on an outer peripheral surface, and coils which are wound at positions corresponding to the permanent magnets of the cylindrical magnetic member, and the permanent magnets which are not yet magnetized are magnetized by making a current flow in the coils. In the equipment, the cylindrical magnetic member is divided into the circumference direction, and a plurality of divided cylindrical magnetic members 4, 5, 6 and 7 are formed, which are arranged movably in the radius direction of the rotor 1.

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