公开(公告)号：US08664822B2

公开(公告)日：2014-03-04

申请号：US13483261

申请日：2012-05-30

申请人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala ,  Chandra S. Namuduri

发明人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala ,  Chandra S. Namuduri

IPC分类号： H02K21/12

CPC分类号： H02K1/2766

摘要： A rotor for an interior permanent synchronous machine. A rotor core structure includes an outer cylindrical wall juxtaposed to an air gap. A plurality of arcuately-shaped cavities is formed within the rotor core structure. The plurality of arcuately-shaped cavities is substantially concentrically layered with respect to an outer cylindrical wall of the rotor core structure. Each arcuately-shaped cavity extending between first and second end sections is juxtaposed to the outer cylindrical surface wall of the rotor structure and includes an intervening center section. A plurality of permanent magnets is inserted within the plurality of arcuately-shaped cavities. Each first end section retains a respective first permanent magnet having a first magnet field strength. Each second end section retains a respective second permanent magnet having the first magnetic field strength. Each center section retains a respective third permanent magnet having a second magnet field strength less than the first magnetic field strength.

摘要翻译： 用于内部永久同步电机的转子。 转子芯结构包括与气隙并置的外圆筒壁。 在转子芯结构内形成多个弧形空腔。 多个弧形空腔相对于转子芯结构的外圆筒壁基本上同心地分层。 在第一和第二端部之间延伸的每个弧形腔并置到转子结构的外圆柱形表面壁上并且包括中间部分。 多个永久磁铁插入多个弧形腔内。 每个第一端部分保持具有第一磁场强度的相应的第一永磁体。 每个第二端部保持具有第一磁场强度的相应的第二永磁体。 每个中心部分保持具有小于第一磁场强度的第二磁场强度的相应的第三永磁体。

公开(公告)号：US08664823B2

公开(公告)日：2014-03-04

申请号：US13483277

申请日：2012-05-30

申请人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala

发明人： Rajeev Vyas ,  Thomas Wolfgang Nehl ,  Alexandru Rajala

IPC分类号： H02K21/12

CPC分类号： H02K1/2766

摘要： A rotor for a permanent synchronous machine includes a rotor having a plurality of arcuately-shaped cavities formed within a rotor core structure. The plurality of arcuately-shaped cavities substantially concentrically layered with respect to an outer cylindrical wall of the rotor core structure. A plurality of permanent magnets is inserted within the plurality of arcuately-shaped cavities. Each cavity layer retains a permanent magnet of a first magnetic field strength disposed in end sections and a permanent magnet of a second magnetic field strength in a center section of each cavity layer. Each respective cavity includes an air barrier formed between the magnets having different magnetic field strengths. The air barrier generates a reluctance within an air barrier gap for directing a flow of flux generated by each third permanent magnet in a preceding layer in a direction toward each third permanent magnet in a succeeding layer.

摘要翻译： 用于永久同步电机的转子包括具有形成在转子芯结构内的多个弧形空腔的转子。 多个弧形空腔相对于转子芯结构的外圆筒壁基本同心地分层。 多个永久磁铁插入多个弧形腔内。 每个空腔层保持设置在端部中的第一磁场强度的永磁体和在每个空腔层的中心部分中具有第二磁场强度的永磁体。 每个相应的腔包括形成在具有不同磁场强度的磁体之间的空气阻挡层。 空气障碍物在空气阻挡间隙内产生磁阻，用于将先前层中的每个第三永久磁铁产生的磁通流沿着后续层中的每个第三永久磁铁的方向引导。

公开(公告)号：US06198194B1

公开(公告)日：2001-03-06

申请号：US09399267

申请日：1999-09-17

申请人： Rajeev Vyas

发明人： Rajeev Vyas

IPC分类号： H02K122

CPC分类号： H02K19/103 ,  Y10T29/49012

摘要： A rotor (10) for an electric machine (40) includes a first elongated rotor segment (12) having a plurality of axially extending rotor poles (20) arranged in a circular array about a central axis (18) that extends longitudinally through the first rotor segment(12). A second axially extending rotor segment (14) engages and is fixed relative to the first rotor segment (12). The second rotor segment (14) has a plurality of axially extending rotor poles (38) arranged in a circular array about the central axis (18). The poles (38) of the second rotor segment (14) are rotated in a first direction about the central axis relative to the poles (20) of the first rotor segment (12). Preferably the rotor (10) also includes a third axially extending rotor segment (16) that engages and is fixed relative to at least one of the first and second rotor segments (12, 14). The third rotor segment (16) also has a plurality of axially extending rotor poles (44) arranged in a circular array about the central axis (18). The poles (44) of the third rotor segment (16) are rotated about the central axis (18) relative to the poles (20, 38) of each of the first and second rotor segments (12, 14).

摘要翻译： 用于电机（40）的转子（10）包括第一细长转子段（12），其具有围绕中心轴线（18）以圆形阵列布置的多个轴向延伸的转子极（20），该中心轴线纵向延伸穿过第一 转子段（12）。 第二轴向延伸的转子段（14）接合并相对于第一转子段（12）固定。 第二转子段（14）具有围绕中心轴线（18）以圆形阵列布置的多个轴向延伸的转子极（38）。 第二转子段（14）的极（38）相对于第一转子段（12）的极（20）围绕中心轴在第一方向上旋转。 优选地，转子（10）还包括第三轴向延伸的转子段（16），其接合并相对于第一和第二转子段（12,14）中的至少一个固定。 第三转子段（16）还具有围绕中心轴线（18）以圆形阵列布置的多个轴向延伸的转子极（44）。 第三转子段（16）的极（44）相对于第一和第二转子段（12,14）中的每一个的极（20,38）围绕中心轴线（18）旋转。

公开(公告)号：US08294323B2

公开(公告)日：2012-10-23

申请号：US12701875

申请日：2010-02-08

申请人： Peter J. Savagian ,  Rajeev Vyas

发明人： Peter J. Savagian ,  Rajeev Vyas

IPC分类号： H02K3/04

CPC分类号： H02K3/12

摘要： A conducting wire for a stator of an electric machine includes a cross section having a first side, a second side, a third side and a fourth side. The third side and the fourth side are parallel with each other, with the first side and the second side extending between the third side and the fourth side. The first side and the second side each define a concave depression.

摘要翻译： 用于电机的定子的导线包括具有第一侧，第二侧，第三侧和第四侧的横截面。 第三侧和第四侧彼此平行，第一侧和第二侧在第三侧和第四侧之间延伸。 第一侧和第二侧各限定凹陷。

公开(公告)号：US08866361B2

公开(公告)日：2014-10-21

申请号：US13274543

申请日：2011-10-17

申请人： Peter J. Savagian ,  Rajeev Vyas

发明人： Peter J. Savagian ,  Rajeev Vyas

IPC分类号： H02K3/04 ,  H02K3/12

CPC分类号： H02K3/12

摘要： A conductor is provided for an electric machine having an axis, a radial direction extending outward from the axis, and a tangential direction perpendicular to the radial direction. The conductor includes a solid core, having radial faces substantially perpendicular to the radial direction of the electric machine and tangential faces substantially perpendicular to the tangential direction of the electric machine. At least one tangential depression is formed on at least one of the tangential faces. The tangential depression creates a tangential void within a rectangular envelope defined by the solid core. Therefore, the surface area of the solid core is greater than the surface area of the rectangular envelope.

摘要翻译： 为具有轴的电机提供导体，具有从轴向外延伸的径向方向和垂直于径向方向的切线方向。 导体包括实芯，其径向面基本上垂直于电机的径向方向，切向面基本上垂直于电机的切线方向。 在至少一个切向面上形成至少一个切向凹陷。 切向凹陷在由实芯确定的矩形包络内产生切向空隙。 因此，实芯的表面积大于矩形外壳的表面积。

公开(公告)号：US20130093280A1

公开(公告)日：2013-04-18

申请号：US13274537

申请日：2011-10-17

申请人： Peter J. Savagian ,  Rajeev Vyas

发明人： Peter J. Savagian ,  Rajeev Vyas

IPC分类号： H02K23/26

CPC分类号： H02K3/12 ,  H02K3/34

摘要： A multi-filar conductor for an electric machine includes a first solid core and a second solid core. The first and second solid cores directly contact each other along a bare interface. An insulation layer surrounds the first and second solid cores. However, the insulation layer does not pass through the bare interface, such that there is no insulation between the first solid core and the second solid core.

摘要翻译： 用于电机的多丝状导体包括第一固体芯和第二固体芯。 第一和第二固体芯沿着裸露的界面直接相互接触。 绝缘层围绕第一和第二固体芯。 然而，绝缘层不通过裸接口，使得第一固体芯和第二固体芯之间不存在绝缘。

公开(公告)号：US08294320B2

公开(公告)日：2012-10-23

申请号：US12707133

申请日：2010-02-17

申请人： Rajeev Vyas

发明人： Rajeev Vyas

IPC分类号： H02K21/12

CPC分类号： B60L11/1803 ,  H02K1/246 ,  H02K1/2766 ,  Y02T10/641 ,  Y02T10/7005

摘要： An interior permanent magnet (IPM) machine having a rotor and a stator is provided. The rotor includes a radially inner barrier devoid of magnets, and a radially outer barrier having at least one permanent magnet, each barrier having two pockets with one pocket disposed at an angle relative to the other. At least one of the pockets of the inner barrier has a shape of an irregular quadrilateral. At least one of the pockets of the outer barrier has a substantially trapezoidal shape with a first side generally parallel to a second side, wherein the first side has a portion slanted relative to the third side. In such an IPM machine, demagnetization of the outer barrier magnet is limited when operating temperatures and electrical current exceed operating conditions prescribed by design specifications.

摘要翻译： 提供具有转子和定子的内部永磁体（IPM）机器。 转子包括没有磁体的径向内部阻挡件，以及具有至少一个永磁体的径向外部阻挡件，每个挡板具有两个凹穴，该凹部具有相对于另一个一角度设置的一个口袋。 内屏障的至少一个凹穴具有不规则四边形的形状。 外阻挡件的至少一个凹穴具有大致梯形形状，其第一侧大致平行于第二侧，其中第一侧具有相对于第三侧倾斜的部分。 在这种IPM机器中，当操作温度和电流超过设计规范规定的操作条件时，外阻挡磁体的退磁受到限制。

公开(公告)号：US20110198959A1

公开(公告)日：2011-08-18

申请号：US12707133

申请日：2010-02-17

申请人： Rajeev Vyas

发明人： Rajeev Vyas

IPC分类号： H02K1/27 ,  H02K1/28

CPC分类号： B60L11/1803 ,  H02K1/246 ,  H02K1/2766 ,  Y02T10/641 ,  Y02T10/7005

摘要： An interior permanent magnet (IPM) machine having a rotor and a stator is provided. The rotor includes a radially inner barrier devoid of magnets, and a radially outer barrier having at least one permanent magnet, each barrier having two pockets with one pocket disposed at an angle relative to the other. At least one of the pockets of the inner barrier has a shape of an irregular quadrilateral. At least one of the pockets of the outer barrier has a substantially trapezoidal shape with a first side generally parallel to a second side, wherein the first side has a portion slanted relative to the third side. In such an IPM machine, demagnetization of the outer barrier magnet is limited when operating temperatures and electrical current exceed operating conditions prescribed by design specifications.

摘要翻译： 提供具有转子和定子的内部永磁体（IPM）机器。 转子包括没有磁体的径向内部阻挡件，以及具有至少一个永磁体的径向外部阻挡件，每个挡板具有两个凹穴，该凹部具有相对于另一个一角度设置的一个口袋。 内屏障的至少一个凹穴具有不规则四边形的形状。 外阻挡件的至少一个凹穴具有大致梯形形状，其第一侧大致平行于第二侧，其中第一侧具有相对于第三侧倾斜的部分。 在这种IPM机器中，当操作温度和电流超过设计规范规定的操作条件时，外阻挡磁体的退磁受到限制。

公开(公告)号：US20130093281A1

公开(公告)日：2013-04-18

申请号：US13274543

申请日：2011-10-17

申请人： Peter J. Savagian ,  Rajeev Vyas

发明人： Peter J. Savagian ,  Rajeev Vyas

IPC分类号： H02K3/12 ,  H02K3/04

CPC分类号： H02K3/12

摘要： A conductor is provided for an electric machine having an axis, a radial direction extending outward from the axis, and a tangential direction perpendicular to the radial direction. The conductor includes a solid core, having radial faces substantially perpendicular to the radial direction of the electric machine and tangential faces substantially perpendicular to the tangential direction of the electric machine. At least one tangential depression is formed on at least one of the tangential faces. The tangential depression creates a tangential void within a rectangular envelope defined by the solid core. Therefore, the surface area of the solid core is greater than the surface area of the rectangular envelope.

摘要翻译： 为具有轴的电机提供导体，具有从轴向外延伸的径向方向和垂直于径向方向的切线方向。 导体包括实芯，其径向面基本上垂直于电机的径向方向，切向面基本上垂直于电机的切线方向。 在至少一个切向面上形成至少一个切向凹陷。 切向凹陷在由实芯确定的矩形包络内产生切向空隙。 因此，实芯的表面积大于矩形外壳的表面积。

公开(公告)号：US20110193443A1

公开(公告)日：2011-08-11

申请号：US12701875

申请日：2010-02-08

申请人： Peter J. Savagian ,  Rajeev Vyas

发明人： Peter J. Savagian ,  Rajeev Vyas

IPC分类号： H02K3/12

CPC分类号： H02K3/12

摘要： A conducting wire for a stator of an electric machine includes a cross section having a first side, a second side, a third side and a fourth side. The third side and the fourth side are parallel with each other, with the first side and the second side extending between the third side and the fourth side. The first side and the second side each define a concave depression.

摘要翻译： 用于电机的定子的导线包括具有第一侧，第二侧，第三侧和第四侧的横截面。 第三侧和第四侧彼此平行，第一侧和第二侧在第三侧和第四侧之间延伸。 第一侧和第二侧各限定凹陷。