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1.发明申请公开(公告)号：US20100244608A1
公开(公告)日：2010-09-30
申请号：US12746329
申请日：2008-12-02
CPC分类号： H01F41/0253 , H01F1/08 , H01F7/0221 , H01F2027/348 , H02K1/276 , Y10T29/49009 , Y10T29/49012 , Y10T29/49075 , Y10T29/49076
摘要： A manufacturing method for a permanent magnet includes the steps of a) producing a permanent magnet (1), b) fracturing the permanent magnet (1) to obtain two or more separate pieces (13), and c) restoring the permanent magnet (1) by fitting the fracture surfaces of adjacent separate pieces (13) together.
摘要翻译： 永磁体的制造方法包括以下步骤：a）制造永磁体（1），b）断裂永磁体（1）以获得两个或更多个分离片（13），以及c）将永磁体（1） ）通过将相邻的分离件（13）的断裂表面装配在一起。
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2.发明授权公开(公告)号：US08497613B2
公开(公告)日：2013-07-30
申请号：US12746329
申请日：2008-12-02
CPC分类号： H01F41/0253 , H01F1/08 , H01F7/0221 , H01F2027/348 , H02K1/276 , Y10T29/49009 , Y10T29/49012 , Y10T29/49075 , Y10T29/49076
摘要： A manufacturing method for a permanent magnet includes the steps of a) producing a permanent magnet (1), b) fracturing the permanent magnet (1) to obtain two or more separate pieces (13), and c) restoring the permanent magnet (1) by fitting the fracture surfaces of adjacent separate pieces (13) together.
摘要翻译： 永磁体的制造方法包括以下步骤：a）制造永磁体（1），b）断裂永磁体（1）以获得两个或更多个分离片（13），以及c）将永磁体（1） ）通过将相邻的分离件（13）的断裂表面装配在一起。
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公开(公告)号：US20100219712A1
公开(公告)日：2010-09-02
申请号：US12599538
申请日：2008-05-09
申请人： Tomonari Kogure , Keiu Kanada , Masaaki Hiraga
发明人： Tomonari Kogure , Keiu Kanada , Masaaki Hiraga
CPC分类号： H02K1/2766 , Y10T29/49012
摘要： A rotor (104) includes a rotor core (105) and permanent magnets (111, 112, 121, 122) embedded in the rotor core (105). The permanent magnet (111) includes a first surface that is a flat surface facing a stator side, and a second surface that is opposite from the first surface. A center position of a middle portion of the permanent magnet (111) which is a center in the magnetization direction of the permanent magnet (111) is positioned in a stator side of a center position of two opposite end portions of the permanent magnet (111) in a direction orthogonal to the magnetization direction which is a center in the magnetization direction.
摘要翻译： 转子（104）包括转子铁芯（105）和埋在转子铁芯（105）中的永磁体（111,112,121,122）。 永磁体（111）包括作为面向定子侧的平坦表面的第一表面和与第一表面相对的第二表面。 作为永磁体（111）的磁化方向中心的永磁体（111）的中间部的中心位置位于永磁体（111）的两个相对端部的中心位置的定子侧 ）在与作为磁化方向的中心的磁化方向正交的方向上。
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公开(公告)号：US08797023B2
公开(公告)日：2014-08-05
申请号：US14001697
申请日：2011-03-07
IPC分类号： G01R33/16
CPC分类号： G01R33/16 , G01R33/1215 , G01R33/123
摘要： Provided is a coercive-force specifying apparatus capable of creating a demagnetization curve for each divisional area of a coercive-force distributed magnet without breaking the coercive-force distributed magnet and of specifying an average coercive force for each divisional area precisely.A coercive force specifying apparatus of the present invention includes: a yoke including an insertion space into which a coercive-force distributed magnet is to be inserted; a magnetizing coil; a search coil that detects a magnetization change when the magnetic field is applied to the coercive-force distributed magnet; and a tracer that creates a demagnetization curve on a basis of a voltage value generated due to the magnetization change. The end face is provided with two or more loop-shaped thread grooves bored therein, the search coil being provided in each thread groove. The coercive-force distributed magnet includes a divisional area defined so as to correspond to each of the two or more search coils, and a voltage value due to a magnetization change detected by each search coil is transmitted to the tracer for creation of a magnetization curve at a corresponding divisional area as well as for specification of an average coercive force.
摘要翻译： 提供一种矫顽力指定装置，其能够在不破坏矫顽力分布磁体的同时产生矫顽力分布磁体的每个分区的去磁曲线，并且精确地指定每个分区的平均矫顽力。 本发明的矫顽力指定装置包括：轭，其包括插入空间，矫顽力分布磁体将被插入到该插入空间中; 磁化线圈; 搜索线圈，当磁场施加到矫顽力分布磁体时检测磁化变化; 以及基于由于磁化变化而产生的电压值产生退磁曲线的示踪器。 端面设置有两个或多个在其中钻孔的环形螺纹槽，搜索线圈设置在每个螺纹槽中。 矫顽力分布磁体包括限定为与两个或更多个搜索线圈中的每一个对应的分区，并且由每个搜索线圈检测到的由磁化变化引起的电压值被传送到示踪器，以产生磁化曲线 在相应的分区，以及用于规定平均矫顽力。
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公开(公告)号：US20130335064A1
公开(公告)日：2013-12-19
申请号：US14001697
申请日：2011-03-07
IPC分类号： G01R33/16
CPC分类号： G01R33/16 , G01R33/1215 , G01R33/123
摘要： Provided is a coercive-force specifying apparatus capable of creating a demagnetization curve for each divisional area of a coercive-force distributed magnet without breaking the coercive-force distributed magnet and of specifying an average coercive force for each divisional area precisely. A coercive force specifying apparatus of the present invention includes: a yoke including an insertion space into which a coercive-force distributed magnet is to be inserted; a magnetizing coil; a search coil that detects a magnetization change when the magnetic field is applied to the coercive-force distributed magnet; and a tracer that creates a demagnetization curve on a basis of a voltage value generated due to the magnetization change. The end face is provided with two or more loop-shaped thread grooves bored therein, the search coil being provided in each thread groove. The coercive-force distributed magnet includes a divisional area defined so as to correspond to each of the two or more search coils, and a voltage value due to a magnetization change detected by each search coil is transmitted to the tracer for creation of a magnetization curve at a corresponding divisional area as well as for specification of an average coercive force.
摘要翻译： 提供一种矫顽力指定装置，其能够在不破坏矫顽力分布磁体的同时产生矫顽力分布磁体的每个分区的去磁曲线，并且精确地指定每个分区的平均矫顽力。 本发明的矫顽力指定装置包括：轭，其包括插入空间，矫顽力分布磁体将被插入到该插入空间中; 磁化线圈; 搜索线圈，当磁场施加到矫顽力分布磁体时检测磁化变化; 以及基于由于磁化变化而产生的电压值产生退磁曲线的示踪器。 端面设置有两个或多个在其中钻孔的环形螺纹槽，搜索线圈设置在每个螺纹槽中。 矫顽力分布磁体包括限定为与两个或更多个搜索线圈中的每一个对应的分区，并且由每个搜索线圈检测到的由磁化变化引起的电压值被传送到示踪器，以产生磁化曲线 在相应的分区，以及用于规定平均矫顽力。
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公开(公告)号：US20100321139A1
公开(公告)日：2010-12-23
申请号：US12816549
申请日：2010-06-16
CPC分类号： H01F41/0266 , B22F1/0044 , B22F2998/10 , H01F1/0577 , B22F9/08 , B22F3/14
摘要： A method of producing a permanent magnet includes: forming a multiplicity of solidified ribbons that are composed of nanosized crystal grains by melting a magnet material and rapidly cooling the molten product; binding the multiplicity of solidified ribbons together by compression molding and sintering to form a sintered body; and performing plastic forming on the sintered body to provide the sintered body with a distribution of strain which increases from a peripheral portion to a central portion.
摘要翻译： 永磁体的制造方法包括：通过熔融磁体材料形成多个由纳米尺寸的晶粒构成的凝固带，并快速冷却熔融产物; 通过压缩成型和烧结将多个固化带结合在一起以形成烧结体; 并且在烧结体上进行塑性成形，以使烧结体具有从周边部分向中心部分增加的应变分布。
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公开(公告)号：US20100171386A1
公开(公告)日：2010-07-08
申请号：US12602056
申请日：2008-05-27
申请人： Tomonari Kogure , Masaaki Hiraga
发明人： Tomonari Kogure , Masaaki Hiraga
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K1/276
摘要： The present invention provides a rotor a for magnet-embedded motor and a magnet-embedded motor whereby the manufacturing cost thereof can be significantly reduced while securing desired coercive force and magnetic flux density. A rotor for a magnet-embedded motor which comprises a plurality of permanent magnets 21 embedded therein, wherein each permanent magnet 21 is formed with a plurality of magnetic regions A to D having different coercive forces that are determined based on the intensity of the inverse magnetic field that acts on each permanent magnet 21, provided that a magnetic region having a relatively large coercive force is designated to be a region that is influenced by a relatively large inverse magnetic field.
摘要翻译： 本发明提供一种用于磁体嵌入式电动机和磁体嵌入式电动机的转子a，由此可以在确保所需矫顽力和磁通密度的同时大大降低其制造成本。 一种用于嵌入磁体的电机的转子，其包括嵌入其中的多个永磁体21，其中每个永磁体21形成有多个磁场A至D，其具有不同的矫顽力，该矫顽力是根据逆磁场强度确定的 只要具有相对较大的矫顽力的磁性区域被指定为受相对较大的反向磁场影响的区域，其作用在每个永磁体21上。
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公开(公告)号：US08729763B2
公开(公告)日：2014-05-20
申请号：US13809910
申请日：2010-07-23
申请人： Tomonari Kogure , Hiroko Kurihara
发明人： Tomonari Kogure , Hiroko Kurihara
IPC分类号： H02K21/12
CPC分类号： H02K1/274 , H02K1/2766 , H02K2213/03
摘要： Disclosed are a rotor and an IPM motor capable of avoiding concentration of flux on a corner area of a magnet on the stator side, leading to reduction in demagnetizing field and accordingly reduction in a required coercive force, and reduction in the usage amount of dysprosium or the like and accordingly reduction in manufacturing cost. In a slot bored in a rotor core of a rotor making up a motor, at least one of a slot face on a center side of the rotor core and a slot face facing this slot face is formed a protrusion or a concave groove and the magnet to be inserted in the slot includes at least one of a concave groove and a protrusion to be engaged with the protrusion or the concave groove of the slot face at a position corresponding to the protrusion or the concave groove formed in the slot. Then, these concave groove and protrusion are engaged to form an engagement part. This engagement part aligns and fixes the magnet in the rotor, and a flux barrier is formed between a lateral side face of the magnet and a slot face, the flux barrier having a same thickness as a thickness of the magnet.
摘要翻译： 公开了一种转子和IPM电动机，其能够避免在定子侧的磁体的角落区域上的磁通集中，导致退磁场的减少，从而减少所需的矫顽力，并减少镝的使用量或 相应地降低制造成本。 在构成电动机的转子的转子芯中钻孔的槽中，转子铁心的中心侧的槽面和面向该槽面的槽面中的至少一个形成有突起或凹槽，并且磁铁 插入槽中包括凹槽和突起中的至少一个，以与形成在槽中的突起或凹槽对应的位置与槽面的突起或凹槽接合。 然后，这些凹槽和突起接合以形成接合部。 该接合部将磁体对准和固定在转子中，并且在磁体的侧面和槽面之间形成磁通屏障，磁通屏障具有与磁体厚度相同的厚度。
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公开(公告)号：US20130113328A1
公开(公告)日：2013-05-09
申请号：US13809910
申请日：2010-07-23
申请人： Tomonari Kogure , Hiroko Kurihara
发明人： Tomonari Kogure , Hiroko Kurihara
IPC分类号： H02K1/27
CPC分类号： H02K1/274 , H02K1/2766 , H02K2213/03
摘要： Disclosed are a rotor and an IPM motor capable of avoiding concentration of flux on a corner area of a magnet on the stator side, leading to reduction in demagnetizing field and accordingly reduction in a required coercive force, and reduction in the usage amount of dysprosium or the like and accordingly reduction in manufacturing cost. In a slot bored in a rotor core of a rotor making up a motor, at at least one of a slot face on a center side of the rotor core and a slot face facing this slot face is formed a protrusion or a concave groove, and the magnet to be inserted in the slot includes at least one of a concave groove and a protrusion to be engaged with the protrusion or the concave groove of the slot face at a position corresponding to the protrusion or the concave groove formed in the slot. Then, these concave groove and protrusion are engaged to form an engagement part. This engagement part aligns and fixes the magnet in the rotor, and a flux barrier is formed between a lateral side face of the magnet and a slot face, the flux harrier having a same thickness as a thickness of the magnet.
摘要翻译： 公开了一种转子和IPM电动机，其能够避免在定子侧的磁体的角落区域上的磁通集中，导致退磁场的减少，从而减少所需的矫顽力，并减少镝的使用量或 相应地降低制造成本。 在构成电动机的转子的转子芯中钻孔的槽中，在转子铁心的中心侧的槽面和面向该槽面的槽面中的至少一个上形成有突起或凹槽， 要插入槽中的磁体包括与形成在槽中的突起或凹槽相对应的位置处与槽面的突起或凹槽接合的凹槽和突起中的至少一个。 然后，这些凹槽和突起接合以形成接合部。 该接合部将磁体对准和固定在转子中，并且在磁体的侧面和槽面之间形成磁通屏障，磁通束具有与磁体厚度相同的厚度。
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公开(公告)号：US08493062B2
公开(公告)日：2013-07-23
申请号：US13583681
申请日：2010-03-15
申请人： Tomonari Kogure , Mayumi Nakanishi
发明人： Tomonari Kogure , Mayumi Nakanishi
IPC分类号： G01N27/76
CPC分类号： G01R33/10 , G01R31/34 , G01R33/1215 , G01R33/1223
摘要： According to the present invention, a method for determining coercivity of a coercivity distribution magnet, whereby coercivity of each portion in the coercivity distribution magnet can be determined with good accuracy without, for example, cutting the coercivity distribution magnet into pieces and thus quality assurance can be achieved with good accuracy, is provided.The coercivity determination method of the present invention comprises the following steps: a step of dividing a plane of a coercivity distribution magnet into a plurality of virtual plane segmented regions, placing the coercivity distribution magnet in a demagnetization-field-applying device, providing detectors for the plane segmented regions, and creating a demagnetization loss curve for each plane segmented region; a step of determining the minimum coercivity and the mean coercivity; a step of creating a coercivity distribution graph based on three hypotheses; and a step of determining the coercivity at an arbitrary position on the plane of the coercivity distribution magnet with the use of the coercivity distribution graph based on which the coercivity for each plane segmented region is determined.
摘要翻译： 根据本发明，一种用于确定矫顽磁力分布磁体的矫顽力的方法，由此能够以高精度确定矫顽磁力分布磁铁中各部分的矫顽力，而不需要例如将矫顽力分布磁铁切割成片，从而可以确保质量保证 提供良好的准确性。 本发明的矫顽力测定方法包括以下步骤：将矫顽力分布磁体的平面分割为多个虚拟平面分割区域，将矫顽力分布磁铁置于退磁场施加装置中，提供检测器 平面分割区域，并为每个平面分割区域产生去磁损耗曲线; 确定最小矫顽力和平均矫顽力的步骤; 基于三个假设创建矫顽力分布图的步骤; 以及使用确定每个平面分割区域的矫顽力的矫顽力分布图来确定矫顽力分布磁体的平面上的任意位置的矫顽力的步骤。
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