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公开(公告)号：US10566866B2
公开(公告)日：2020-02-18
申请号：US14632502
申请日：2015-02-26
Applicant: Yasa Motors Limited
Inventor： Tim Woolmer
Abstract: A rotor for an axial flux permanent magnet machine is described. The machine has a stator comprising a stator housing enclosing a set of coils wound on stator bars or teeth and disposed circumferentially at intervals about an axis on the machine, and a rotor bearing a set of permanent magnets and mounted for rotation about the said axis. The rotor and stator are spaced apart along said axis to define a gap therebetween in which magnet flux in the machine is generally in an axial direction. The magnets are disposed circumferentially around said rotor and define a plurality, n, of matching sets of magnets. Each set of magnets includes a plurality of magnets, wherein said n sets of magnets on said rotor have n-fold rotational symmetry. Within a said set, the magnets have different shapes and/or relative circumferential spacings of adjacent magnets within the set of magnets are irregular.
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Patent Agency Ranking
公开(公告)号：US20170117763A1
公开(公告)日：2017-04-27
申请号：US15295239
申请日：2016-10-17
Applicant: YASA MOTORS LIMITED
Inventor： Tim Woolmer , Christopher Thomas McCaw , Andrew Court
CPC classification number: H02K1/2793 , H02K1/146 , H02K5/161 , H02K7/006 , H02K7/083 , H02K15/03 , H02K15/16 , H02K21/24 , H02K2201/03
Abstract: A double-rotor single stator axial flux machine, which is supplied having no bearings between the rotors and stator internal of the machine, is mounted to an external structure such as an interface of an engine of a vehicle or a portion of the transmission of a vehicle. The machine is mounted to the structure via the shaft of the machine (on which are seated bearings located in the structure) and the stator housing. The bearings of the structure, which are external to the machine, permit the rotors to rotate relative to the stator when the machine is installed on the structure.
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公开(公告)号：US20170012480A1
公开(公告)日：2017-01-12
申请号：US15119478
申请日：2015-02-18
Applicant: YASA MOTORS LIMITED
Inventor： Tim Woolmer
CPC classification number: H02K1/20 , H02K1/12 , H02K1/2793 , H02K3/18 , H02K3/24 , H02K9/005 , H02K9/19 , H02K15/02 , H02K21/24
Abstract: We describe a method of cooling an axial flux permanent magnet machine, the machine having a stator comprising a stator housing enclosing a set of coils wound on respective stator bars and disposed circumferentially at intervals about an axis of the machine, and a rotor bearing a set of permanent magnets and mounted for rotation about said axis, and wherein said rotor and stator are spaced apart along said axis to define a gap therebetween in which magnetic flux in the machine is generally in an axial direction, the method comprising: flowing a coolant through said stator housing around said coils such that said coolant flows between said coils; and controlling said coolant flow between said coils by controlling a gap between adjacent said coils; wherein said controlling of said gap comprises: providing each of said coils with a single layer of windings over said stator bar, said layer of windings comprising a ribbon-shaped wire having a greater width across a surface of the ribbon than thickness through the ribbon; wherein said windings are stacked horizontally along said stator bar such that adjacent ribbon surfaces of said ribbon abut one another, wherein said width of said ribbon defines a distance across a said coil perpendicular to a direction in which said windings are stacked; and controlling said gap by controlling said distance across said coil.
Abstract translation: 我们描述一种冷却轴向磁通永磁体机器的方法，该机器具有定子，该定子包括一个定子壳体，该定子壳体包围缠绕在相应的定子线条上的一组线圈，并围绕机器的轴线间隔开设置， 并且其中所述转子和定子沿着所述轴线间隔开以限定其间的间隙，其中机器中的磁通通常在轴向方向上，所述方法包括：使冷却剂流过 所述定子壳体围绕所述线圈，使得所述冷却剂在所述线圈之间流动; 以及通过控制相邻所述线圈之间的间隙来控制所述线圈之间的所述冷却剂流动; 其中对所述间隙的所述控制包括：在所述定子杆上提供每个所述线圈的单层绕组，所述绕组层包括带状线，所述带状线在所述带的表面上具有比穿过所述带的厚度更大的宽度; 其中所述绕组沿着所述定子杆水平堆叠，使得所述带的相邻带状表面彼此邻接，其中所述带的所述宽度限定垂直于所述绕组堆叠的方向的所述线圈的距离; 以及通过控制跨越所述线圈的所述距离来控制所述间隙。
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公开(公告)号：US20150244219A1
公开(公告)日：2015-08-27
申请号：US14632502
申请日：2015-02-26
Applicant: Yasa Motors Limited
Inventor： Tim Woolmer
Abstract: A rotor for an axial flux permanent magnet machine is described. The machine has a stator comprising a stator housing enclosing a set of coils wound on stator bars or teeth and disposed circumferentially at intervals about an axis on the machine, and a rotor bearing a set of permanent magnets and mounted for rotation about the said axis. The rotor and stator are spaced apart along said axis to define a gap therebetween in which magnet flux in the machine is generally in an axial direction. The magnets are disposed circumferentially around said rotor and define a plurality, n, of matching sets of magnets. Each set of magnets includes a plurality of magnets, wherein said n sets of magnets on said rotor have n-fold rotational symmetry. Within a said set, the magnets have different shapes and/or relative circumferential spacings of adjacent magnets within the set of magnets are irregular.
Abstract translation: 描述了用于轴向通量永磁机的转子。 该机器具有一个定子，该定子包括一个定子壳体，该定子壳体包围缠绕在定子棒或齿上的一组线圈，并围绕机器上的轴线间隔周期设置，以及一个转子，该转子承载一组永久磁铁，并安装成围绕所述轴线旋转。 转子和定子沿着所述轴线间隔开，以在其间形成间隙，其中机器中的磁通通常在轴向方向上。 磁体围绕所述转子周向设置并且限定多个n个匹配的磁体组。 每组磁体包括多个磁体，其中所述转子上的所述n组磁体具有n倍的旋转对称性。 在所述组中，所述磁体具有不同的形状，并且所述磁体组内的相邻磁体的相对周向间隔是不规则的。
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公开(公告)号：US10224786B2
公开(公告)日：2019-03-05
申请号：US14910849
申请日：2014-08-08
Applicant: Yasa Motors Limited
Inventor： Tim Woolmer , Chris McCaw
Abstract: The present invention provides an axial flux motor (10) having: a rotor (20) having a radially extending portion (20r) and an axially extending portion (20c) having a first side (20a) and a second side (20b); a stator (22) having an inner aperture (30), a front wall (34) having a first side (34s) and a second side (34i) and being axially spaced from the first side (20a) of the rotor (20) by a gap (38), a bearing member (32) within the inner aperture (30) of the stator (22) and supporting the axially extending portion (20c) of the rotor (20); a casing (40) having an axially and circumferentially extending outer portion (48) surrounding said rotor (20) and having an inner surface (43); a cover plate (42) having an inner face (42i) confronting and being spaced from said second side (20b) of said rotor (20); a containment chamber (26) including said second side (34i), and said inner face (42i) of said cover plate (42) and having a top portion (45); a sump (50) within the containment chamber (26); and one or more first flow diverters (60) on the inner surface (43) of casing (40) to direct liquid towards said first and/or second inner side faces (34i, 42i).
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公开(公告)号：US20160204678A1
公开(公告)日：2016-07-14
申请号：US14910849
申请日：2014-08-08
Applicant: YASA MOTORS LIMITED
Inventor： Tim Woolmer , Chris McCaw
Abstract: The present invention provides an axial flux motor (10) having: a rotor (20) having a radially extending portion (20r) and an axially extending portion (20c) having a first side (20a) and a second side (20b); a stator (22) having an inner aperture (30), a front wall (34) having a first side (34s) and a second side (34i) and being axially spaced from the first side (20a) of the rotor (20) by a gap (38), a bearing member (32) within the inner aperture (30) of the stator (22) and supporting the axially extending portion (20c) of the rotor (20); a casing (40) having an axially and circumferentially extending outer portion (48) surrounding said rotor (20) and having an inner surface (43); a cover plate (42) having an inner face (42i) confronting and being spaced from said second side (20b) of said rotor (20); a containment chamber (26) including said second side (34i), and said inner face (42i) of said cover plate (42) and having a top portion (45); a sump (50) within the containment chamber (26); and one or more first flow diverters (60) on the inner surface (43) of casing (40) to direct liquid towards said first and/or second inner side faces (34i, 42i).
Abstract translation: 本发明提供一种轴向磁通电动机（10），其具有：具有径向延伸部分（20r）的转子（20）和具有第一侧面（20a）和第二侧面（20b）的轴向延伸部分（20c） 具有内孔（30）的定子（22），具有第一侧（34s）和第二侧（34i）并与转子（20）的第一侧（20a）轴向间隔开的前壁（34） 通过间隙（38），在定子（22）的内孔（30）内的支撑构件（32）并支撑转子（20）的轴向延伸部分（20c）; 壳体（40）具有围绕所述转子（20）并且具有内表面（43）的轴向和周向延伸的外部部分（48）。 具有面对面并与所述转子（20）的所述第二侧（20b）间隔开的内表面（42i）的盖板（42）。 包括所述第二侧面（34i）和所述盖板（42）的所述内表面（42i）的容纳室（26），并具有顶部部分（45）; 位于容纳室（26）内的贮槽（50）; 以及在壳体（40）的内表面（43）上的一个或多个第一分流器（60），以将液体引向所述第一和/或第二内侧面（34i，42i）。
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