发明名称 |
POLE-PIECE BONDING |
摘要 |
We describe a method of manufacturing a housing for the stator of an axial flux permanent magnet machine, in particular a Yokeless and Segmented Armature motor, the machine having a stator comprising 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 comprises: fabricating a radial wall for said stator housing to be located in said gap between said rotor and said stator by: providing a membrane of fibre-reinforced polymer material; pressing a set of said stator bars into said membrane of fibre-reinforced polymer whilst said polymer is mouldable, wherein said reinforcement inhibits said stator bars from pushing through said membrane; solidifying said polymer to hold said set of stator bars in their respective positions; and manufacturing said housing using said radial wall. |
申请公布号 |
US2016226352(A1) |
申请公布日期 |
2016.08.04 |
申请号 |
US201415021208 |
申请日期 |
2014.09.12 |
申请人 |
YASA MOTORS LIMITED |
发明人 |
King Charles Edmund;Biddulph Jonathan James |
分类号 |
H02K15/02;H02K1/06;H02K15/12;H02K15/14;H02K5/128;H02K3/04;H02K5/02 |
主分类号 |
H02K15/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method of manufacturing a housing for the stator of an axial flux permanent magnet machine, the machine having a stator comprising 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:
fabricating a radial wall for said stator housing to be located in said gap between said rotor and said stator by: providing a membrane of polymer material; pressing at least ends or shoes of said set of said stator bars into said membrane of polymer whilst said polymer is mouldable, wherein at least a said end or shoe of a said stator bar is formed from a porous magnetic material; solidifying said polymer to hold said ends or shoes of said set of stator bars in their respective positions; and manufacturing said housing using said radial wall; wherein said polymer of said membrane bonds with said porous magnetic material during said pressing to bond said set of stator bars to said polymer. |
地址 |
Abingdon, Oxfordshire GB |