- 专利标题: Cooling arrangement for an electric motor
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申请号: US13835071申请日: 2013-03-15
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公开(公告)号: US09653967B2公开(公告)日: 2017-05-16
- 发明人: Rafael Maynez
- 申请人: Techtronic Power Tools Technology Limited
- 申请人地址: VG Tortola
- 专利权人: TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED
- 当前专利权人: TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED
- 当前专利权人地址: VG Tortola
- 代理机构: Michael Best & Friedrich LLP
- 主分类号: H02K1/32
- IPC分类号: H02K1/32 ; H02K9/06 ; H02K1/26 ; H02K1/28 ; H02K13/04
摘要:
An electric motor includes a stator operable to produce a magnetic field and defining an opening, and a rotor at least partially disposed within the opening. The rotor includes a shaft extending along a rotational axis, a first rotor magnetic core portion including a plurality of laminations stacked contiguously on the shaft, and a second rotor magnetic core portion coupled to the plurality of laminations. The first rotor magnetic core portion and the second rotor magnetic core portion cooperate to define the rotor magnetic core. A plurality of windings is coupled to the rotor magnetic core and an air flow path is formed as part of the second rotor magnetic core portion. The air flow path includes an axial portion that passes through the shaft axially along the rotational axis and a radial portion that extends radially outward through the second rotor magnetic core portion.
公开/授权文献
- US20140265665A1 COOLING ARRANGEMENT FOR AN ELECTRIC MOTOR 公开/授权日:2014-09-18
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