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    • 5. 发明授权
    • Dynamoelectric machine
    • 发电机
    • US08334633B2
    • 2012-12-18
    • US12920954
    • 2008-04-04
    • Moriyuki HazeyamaHiroyuki AkitaRyuichi ShimomuraMasaya InoueMasao MoritaToshiyuki YoshizawaShinji NishimuraKazunori Tanaka
    • Moriyuki HazeyamaHiroyuki AkitaRyuichi ShimomuraMasaya InoueMasao MoritaToshiyuki YoshizawaShinji NishimuraKazunori Tanaka
    • H02K1/22H02K9/22
    • H02K9/06H02K21/044
    • The present invention provides a dynamoelectric machine that enables heat that is generated in a permanent magnet to be transmitted to a fan and be radiated from the fan effectively, that suppresses occurrences of damage to the fan that result from centrifugal forces that act on the permanent magnet, and that also enables the fan to be prepared easily and inexpensively.In a dynamoelectric machine according to the present invention, a magnet holder (30, 35) that is made of a magnetic material is disposed so as to span over a trough portion (26, 27), an interfitting groove (31, 36) that has a groove direction in an axial direction is formed on the magnet holder (30, 35) so as to open radially outward, and so as to lead inward from an axially outer side, and a permanent magnet (32, 37) is held by the magnet holder (30, 35) by being fitted into the interfitting groove (31, 36) and is disposed so as to face an inner circumferential surface near a tip end of claw-shaped magnetic pole portions (24, 20) and have a predetermined clearance. In addition, a metal fan (40A, 40B) is fixed to an end surface of a pole core body (17, 21), a thermally conductive plate (43) is disposed so as to extend from a base portion (41) axially inward, and a leading end portion thereof is press-fitted between a lower surface of the permanent magnet (32, 37) and a bottom surface of the interfitting groove (31, 36).
    • 本发明提供一种电动机,其能够使永磁体中产生的热量有效地传递到风扇并从风扇辐射,从而抑制由作用于永久磁铁的离心力引起的风扇损坏的发生 ,而且还能够容易且廉价地制备风扇。 在根据本发明的电动机中,由磁性材料制成的磁体保持器(30,35)设置成跨过谷部(26,27),配合槽(31,36),该配合槽 在磁体保持器(30,35)上形成有沿轴向的槽方向,从而沿径向向外侧开口,并从轴向外侧向内方引导,永久磁铁(32,37)由 所述磁体保持器(30,35)通过嵌合在所述嵌合槽(31,36)中并且配置成面对爪状磁极部(24,20)的前端附近的内周面,并且具有 预定间隙。 此外,金属风扇(40A,40B)固定在极芯体(17,21)的端面,导热板(43)设置成从基部(41)轴向向内延伸 并且其前端部压配合在永磁体(32,37)的下表面和配合槽(31,36)的底面之间。
    • 6. 发明申请
    • DYNAMOELECTRIC MACHINE
    • 电动机
    • US20110012449A1
    • 2011-01-20
    • US12920954
    • 2008-04-04
    • Moriyuki HazeyamaHiroyuki AkitaRyuichi ShimomuraMasaya InoueMasao MoritaToshiyuki YoshizawaShinji NishimuraKazunori Tanaka
    • Moriyuki HazeyamaHiroyuki AkitaRyuichi ShimomuraMasaya InoueMasao MoritaToshiyuki YoshizawaShinji NishimuraKazunori Tanaka
    • H02K9/22
    • H02K9/06H02K21/044
    • The present invention provides a dynamoelectric machine that enables heat that is generated in a permanent magnet to be transmitted to a fan and be radiated from the fan effectively, that suppresses occurrences of damage to the fan that result from centrifugal forces that act on the permanent magnet, and that also enables the fan to be prepared easily and inexpensively.In a dynamoelectric machine according to the present invention, a magnet holder (30, 35) that is made of a magnetic material is disposed so as to span over a trough portion (26, 27), an interfitting groove (31, 36) that has a groove direction in an axial direction is formed on the magnet holder (30, 35) so as to open radially outward, and so as to lead inward from an axially outer side, and a permanent magnet (32, 37) is held by the magnet holder (30, 35) by being fitted into the interfitting groove (31, 36) and is disposed so as to face an inner circumferential surface near a tip end of claw-shaped magnetic pole portions (24, 20) and have a predetermined clearance. In addition, a metal fan (40A, 40B) is fixed to an end surface of a pole core body (17, 21), a thermally conductive plate (43) is disposed so as to extend from a base portion (41) axially inward, and a leading end portion thereof is press-fitted between a lower surface of the permanent magnet (32, 37) and a bottom surface of the interfitting groove (31, 36).
    • 本发明提供一种电动机,其能够使永磁体中产生的热量有效地传递到风扇并从风扇辐射,从而抑制由作用于永久磁铁的离心力引起的风扇损坏的发生 ,而且还能够容易且廉价地制备风扇。 在根据本发明的电动机中,由磁性材料制成的磁体保持器(30,35)设置成跨越槽部(26,27),配合槽(31,36),该配合槽 在磁体保持器(30,35)上形成有沿轴向的槽方向,从而沿径向向外侧开口,并从轴向外侧向内方引导,永久磁铁(32,37)由 所述磁体保持器(30,35)通过嵌合在所述嵌合槽(31,36)中并且配置成面对爪状磁极部(24,20)的前端附近的内周面,并且具有 预定间隙。 此外,金属风扇(40A,40B)固定在极芯体(17,21)的端面,导热板(43)设置成从基部(41)轴向向内延伸 并且其前端部压配合在永磁体(32,37)的下表面和配合槽(31,36)的底面之间。
    • 8. 发明申请
    • DYNAMOELECTRIC MACHINE AND METHOD FOR MANUFACTURING A ROTOR THEREFOR
    • 动力电机及其制造方法
    • US20110181142A1
    • 2011-07-28
    • US13122611
    • 2008-11-10
    • Toshiyuki YoshizawaMasaya InoueRyuichi ShimomuraTakuma WadaKanji ShinkawaMasao MoritaYoshiharu HayashiKazuya NakamachiKazunori Tanaka
    • Toshiyuki YoshizawaMasaya InoueRyuichi ShimomuraTakuma WadaKanji ShinkawaMasao MoritaYoshiharu HayashiKazuya NakamachiKazunori Tanaka
    • H02K1/28
    • H02K21/044
    • 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.
    • 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。
    • 9. 发明授权
    • Dynamoelectric machine
    • 发电机
    • US08304951B2
    • 2012-11-06
    • US12866099
    • 2008-02-13
    • Ryuichi ShimomuraHiroyuki AkitaMasaya InoueToshiyuki Yoshizawa
    • Ryuichi ShimomuraHiroyuki AkitaMasaya InoueToshiyuki Yoshizawa
    • H02K1/28H02K21/12H02K1/27H02K19/22
    • H02K21/044
    • The present invention provides a dynamoelectric machine that enables permanent magnets to be held stably in trough portions that are formed on portions of a yoke portion that are positioned between adjacent claw-shaped magnetic pole portions.In a dynamoelectric machine according to the present invention, first and second magnet holders are disposed so as to span first and second trough portions that are formed on portions of first and second yoke portions that are positioned between circumferentially adjacent first and second claw-shaped magnetic pole portions, and first and second permanent magnets are held by the first and second magnet holders so as to face inner circumferential surfaces near tip ends of the claw-shaped magnetic pole portions so as to have a predetermined clearance.
    • 本发明提供一种电动机,其能够使永磁体稳定地保持在形成在位于相邻的爪状磁极部之间的磁轭部的部分的槽部中。 在根据本发明的电动机中,第一和第二磁体保持器设置成跨越形成在第一和第二磁轭部分的位于周向相邻的第一和第二爪形磁体之间的第一和第二槽部分 第一和第二永磁体由第一和第二磁体保持器保持,以便面对爪形磁极部分的末端附近的内周面,以具有预定的间隙。
    • 10. 发明申请
    • DYNAMOELECTRIC MACHINE
    • 电动机
    • US20110001383A1
    • 2011-01-06
    • US12866099
    • 2008-02-13
    • Ryuichi ShimomuraHiroyuki AkitaMasaya InoueToshiyuki Yoshizawa
    • Ryuichi ShimomuraHiroyuki AkitaMasaya InoueToshiyuki Yoshizawa
    • H02K21/04
    • H02K21/044
    • The present invention provides a dynamoelectric machine that enables permanent magnets to be held stably in trough portions that are formed on portions of a yoke portion that are positioned between adjacent claw-shaped magnetic pole portions.In a dynamoelectric machine according to the present invention, first and second magnet holders are disposed so as to span first and second trough portions that are formed on portions of first and second yoke portions that are positioned between circumferentially adjacent first and second claw-shaped magnetic pole portions, and first and second permanent magnets are held by the first and second magnet holders so as to face inner circumferential surfaces near tip ends of the claw-shaped magnetic pole portions so as to have a predetermined clearance.
    • 本发明提供一种电动机,其能够使永磁体稳定地保持在形成在位于相邻的爪状磁极部之间的磁轭部的部分的槽部中。 在根据本发明的电动机中,第一和第二磁体保持器设置成跨越形成在第一和第二磁轭部分的位于周向相邻的第一和第二爪形磁体之间的第一和第二槽部分 第一和第二永磁体由第一和第二磁体保持器保持,以便面对爪形磁极部分的末端附近的内周面,以具有预定的间隙。