公开(公告)号：US08368274B2

公开(公告)日：2013-02-05

申请号：US13122611

申请日：2008-11-10

申请人： Toshiyuki Yoshizawa ,  Masaya Inoue ,  Ryuichi Shimomura ,  Takuma Wada ,  Kanji Shinkawa ,  Masao Morita ,  Yoshiharu Hayashi ,  Kazuya Nakamachi ,  Kazunori Tanaka

发明人： Toshiyuki Yoshizawa ,  Masaya Inoue ,  Ryuichi Shimomura ,  Takuma Wada ,  Kanji Shinkawa ,  Masao Morita ,  Yoshiharu Hayashi ,  Kazuya Nakamachi ,  Kazunori Tanaka

IPC分类号： H02K1/28 ,  H02K21/14

CPC分类号： H02K21/044

摘要： Dynamoelectric machine having holding grooves recessed into yoke portions with openings on respective facing portions of inner wall surfaces of trough portions, at axially inner ends of the yoke portions, having axial groove directions, and an end surface in a groove length direction constitutes a stopping surface. Magnet material holders are disposed spanning the trough portions radially inside inner circumferential surfaces near tip ends of claw-shaped magnetic pole portions, fitted from axially inside into each holding groove, are recessed to face each other on the trough portions restricting circumferential and radial motion by inner wall surfaces of the holding grooves and axially outward movement restricted by the stopping surface. Interfitting grooves having openings on surfaces facing the inner circumferential surfaces near the tip ends, having axial groove directions, and passing through in the axial direction, and permanent magnets fitted into the interfitting grooves are held by the magnet material holders.

摘要翻译： 具有凹槽的保持槽的凹槽中具有凹槽的保持槽，在槽部的内壁面的相对的相对部分上具有凹口的轭部，在轭部的轴向内端具有轴向槽方向，并且槽长度方向上的端面构成止动表面 。 磁性材料保持器跨越槽部，从爪状磁极部的端部附近的内周面径向地配置，从轴向内侧配合到各保持槽中，在槽部上凹陷，从而通过限制周向和径向运动的槽部 保持槽的内壁表面和由止动表面限制的轴向向外运动。 在具有轴向槽方向并且沿轴向通过的面上与内周面相对的表面上具有开口的相互配合槽，并且配合在配合槽中的永久磁铁被磁体保持件保持。

公开(公告)号：US20110181142A1

公开(公告)日：2011-07-28

申请号：US13122611

申请日：2008-11-10

申请人： Toshiyuki Yoshizawa ,  Masaya Inoue ,  Ryuichi Shimomura ,  Takuma Wada ,  Kanji Shinkawa ,  Masao Morita ,  Yoshiharu Hayashi ,  Kazuya Nakamachi ,  Kazunori Tanaka

发明人： Toshiyuki Yoshizawa ,  Masaya Inoue ,  Ryuichi Shimomura ,  Takuma Wada ,  Kanji Shinkawa ,  Masao Morita ,  Yoshiharu Hayashi ,  Kazuya Nakamachi ,  Kazunori Tanaka

IPC分类号： H02K1/28

CPC分类号： H02K21/044

摘要： The present invention provides a dynamoelectric machine and a method for manufacturing a rotor therefor that can hold permanent magnets stably for a long time by a simple magnet holding construction.In the dynamoelectric machine, holding grooves are recessed into yoke portions in a non-piercing state so as to have openings on respective facing portions of inner wall surfaces of trough portions, so as to have openings at axially inner ends of the yoke portions, and so as to have groove directions in an axial direction, and in which an end surface in a groove length direction constitutes a stopping surface, magnet holders that are made of a magnetic material are disposed so as to span the trough portions radially inside inner circumferential surfaces near tip ends of claw-shaped magnetic pole portions by being fitted from axially inside into each of the holding grooves that are recessed so as to face each other on the trough portions such that circumferential and radial motion is restricted by inner wall surfaces of the holding grooves and axially outward movement is restricted by the stopping surface, and in which interfitting grooves are formed so as to have openings on surfaces that face the inner circumferential surfaces near the tip ends of the claw-shaped magnetic pole portions, so as to have groove directions in an axial direction, and so as to pass through in the axial direction, and permanent magnets are fitted into the interfitting grooves and are held by the magnet holders so as to face the inner circumferential surfaces near the tip ends of the claw-shaped magnetic pole portions.

摘要翻译： 本发明提供一种电动机及其制造方法，其可以通过简单的磁体保持结构长时间地稳定地保持永磁体。 在电动机中，保持槽以非穿孔状态凹入到轭部中，以便在槽部的内壁面的相对的相对部分上具有开口，以在轭部的轴向内端具有开口，并且 在轴向方向上具有槽方向，并且其中槽长度方向上的端面构成止动面，由磁性材料制成的磁体保持器设置成在内周面径向地跨越槽部 爪状磁极部的前端部从轴向内侧嵌入到槽部的凹部相互相对的各保持槽中，使得周向和径向运动被保持件的内壁面限制 凹槽和轴向向外运动被止动表面限制，并且其中形成相互配合的槽以在表面t上具有开口 帽子面对爪状磁极部的前端附近的内周面，从而在轴向上具有槽方向，并且沿轴向通过，并且永久磁铁嵌入到配合槽 并且被磁体保持件保持以面对爪状磁极部的末端附近的内周面。