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公开(公告)号：US20190190342A1
公开(公告)日：2019-06-20
申请号：US15876506
申请日：2018-01-22
发明人： Chi-Hsin WANG , Cheng-Han TSAI , Zih-Yang FANG
摘要： A motor frame with bumps includes a frame body, plural bumps and plural heat-dissipation fins. The frame body has an internal surface and an external surface. Each of the bumps protrudes radially inward from the inner surface, and plural internal flow passages are formed by every two neighboring bumps. Each of the heat-dissipation fins protrudes radially outward from the external surface, and plural external flow passages are formed by every two neighboring heat-dissipation fins. Each of the bumps is radially outwards respective to at least two of the heat-dissipation fins.
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公开(公告)号：US20180041102A1
公开(公告)日：2018-02-08
申请号：US15278468
申请日：2016-09-28
CPC分类号： H02K15/12 , B23P11/005 , B23P15/00 , H02K15/0012 , H02K15/02 , H02K15/024
摘要： A method includes steps of: preparing first and second plates, each first plate having surrounding apertures, each aperture including a first accommodation portion and an outer necking portion, each second plate having surrounding accommodation portions; stacking the first plates by aligning necking portions to form band gaps extending linearly and parallel to each other; stacking two second plates to two opposing terminal portions of the stacked first plates; penetrating metal bars into the aligned first and second accommodation portions by exposing both ends of each metal bar; beetling the necking portions at each band gap so as to locate firmly the corresponding metal bar; positioning a first mold and a second mold to clamp the stacked plate structure; injecting metal slurries into the first and second molds and then solidifying the metal slurries to form two end rings; and, removing the first and second molds to complete a rotor structure.
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