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公开(公告)号：US10731281B2
公开(公告)日：2020-08-04
申请号：US16142539
申请日：2018-09-26
发明人： Tzu Sang Chan
摘要： A heat dissipation apparatus for a sewing machine including a forepart and a motor shaft horizontally projecting out of the forepart includes a sleeve releasably secured to the motor shaft and including a first fan mounted thereon; a stator seat including an axial channel with the sleeve rotatably disposed through, and a plurality of first air inlets; and a guide member fastened between the stator seat and the forepart and including a disc-shaped opening with the first fan rotatably disposed therein. In response to activating the first fan, air is drawn through the first air inlets and a gap between the stator seat and the guide member prior to exiting the forepart.
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公开(公告)号：US11050311B2
公开(公告)日：2021-06-29
申请号：US16142489
申请日：2018-09-26
发明人： Tzu Sang Chan
IPC分类号： H02K1/30 , H02K5/20 , H02K9/06 , D05B71/00 , D05B69/12 , D05B69/30 , H02K11/215 , H02K7/08 , H02K15/16 , H02K7/14
摘要： A drive apparatus for sewing machines including a forepart and a motor shaft horizontally projecting out of the forepart is provided with a sleeve releasably secured to the motor shaft; a rotor disposed on the sleeve; and a motor assembly including a housing having an axial passage with the sleeve rotatably disposed through, an inner space disposed on an end of the housing proximate the forepart, and a stator set disposed in the inner space. The rotor is disposed in the inner space. The rotor, the sleeve, and the motor shaft are co-rotated.
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公开(公告)号：US20190229570A1
公开(公告)日：2019-07-25
申请号：US16142489
申请日：2018-09-26
发明人： Tzu Sang CHAN
摘要： A drive apparatus for sewing machines including a forepart and a motor shaft horizontally projecting out of the forepart is provided with a sleeve releasably secured to the motor shaft; a rotor disposed on the sleeve; and a motor assembly including a housing having an axial passage with the sleeve rotatably disposed through, an inner space disposed on an end of the housing proximate the forepart, and a stator set disposed in the inner space. The rotor is disposed in the inner space. The rotor, the sleeve, and the motor shaft are co-rotated.
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公开(公告)号：US20190226135A1
公开(公告)日：2019-07-25
申请号：US16142539
申请日：2018-09-26
发明人： Tzu Sang CHAN
IPC分类号： D05B71/00
摘要： A heat dissipation apparatus for a sewing machine including a forepart and a motor shaft horizontally projecting out of the forepart includes a sleeve releasably secured to the motor shaft and including a first fan mounted thereon; a stator seat including an axial channel with the sleeve rotatably disposed through, and a plurality of first air inlets; and a guide member fastened between the stator seat and the forepart and including a disc-shaped opening with the first fan rotatably disposed therein. In response to activating the first fan, air is drawn through the first air inlets and a gap between the stator seat and the guide member prior to exiting the forepart.
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