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公开(公告)号：US20240164062A1
公开(公告)日：2024-05-16
申请号：US17984279
申请日：2022-11-10
发明人： Fu Hsiang Chung , Hong Fang Chen , Chun Tse Chan
IPC分类号： H05K7/20
CPC分类号： H05K7/20409 , H05K7/20172 , H05K7/20454 , H05K7/205
摘要： A heat dissipation device of electronic equipment has a base, a heat dissipation group, and a cover. The base has an opening, a chamber, and a boss formed in the chamber. The heat dissipation group is connected to the base and has a circuit board and a cooling blade. The circuit board is mounted in the chamber, abuts against the boss, and has a heat source area and at least one non-heat-source area. The heat source area has a first surface facing the boss and a second surface facing the opening. The cooling blade is connected to the base and is located at the second surface. The first surface and the second surface of the heat source area respectively correspond to the boss and the cooling blade in location to provide a guiding direction for heat conduction. The cover is connected to the base.
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公开(公告)号：US11621613B2
公开(公告)日：2023-04-04
申请号：US16880815
申请日：2020-05-21
发明人： Fu-Hsiang Chung , Hong Fang Chen , Wei-Ting Chen , Wei-Lin Hsu
摘要： The present invention relates to an electric motor and an electric tool equipped with the electric motor. The electric motor includes a rotor, a stator, a coil module wound around the stator, a Hall unit and a wiring circuit unit. The Hall unit includes a Hall circuit board disposed around a rotating shaft of the rotor, and a Hall module for sensing rotation of the rotor. The wiring circuit unit is independent of the Hall circuit board and includes a three-phase power source interface. The wiring circuit unit electrically connects coils of the coil module to the power source interfaces respectively by groups. By separately disposing the Hall unit and the wiring circuit unit independently, a volume of the Hall circuit board can be reduced, and an area blocking an airflow path of a heat dissipation unit can be reduced, so heat dissipation effect of the electric motor and the electric tool can be improved.
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公开(公告)号：US11801587B2
公开(公告)日：2023-10-31
申请号：US17177919
申请日：2021-02-17
发明人： Fu-Hsiang Chung , Hong Fang Chen , Shih-Wei Hung
CPC分类号： B25B21/004 , H02K7/145 , H02K33/16 , B25B21/002
摘要： The invention is an electric commutating ratchet tool comprising: a head; a ratchet mechanism with a rotating member and a latch member; the rotating member is capable of rotating, the latch member is capable of displacing and controlling rotation direction of the rotating member; and a commutating device with a commutating member, a magnetic driving member and a magnetic actuating unit; the commutating member is capable of displacing to abut against the latch member; the magnetic actuating unit is opposite to the magnetic driving member, either the magnetic actuating unit or the magnetic driving member is disposed on the commutating member; the magnetic actuating unit is at least one electromagnet; magnetic direction is changed through each of the electromagnets, so that the magnetic driving member is magnetically driven to change a position of the latch member.
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公开(公告)号：US11139713B2
公开(公告)日：2021-10-05
申请号：US16429148
申请日：2019-06-03
发明人： Hong Fang Chen , Wei-Ting Chen , Wei Lin Hsu , Ju-Sheng Cheng
摘要： A brushless motor stator includes a stator core and a stator winding. The stator core has a stator frame, a coil carrier and multiple pole shoes. The coil carrier is mounted on one of the two openings of the stator frame and has a tooth base and multiple teeth. The teeth are formed on a top surface of the tooth base. The pole shoes are formed on the inner annular surface of the stator frame. The stator winding is formed by using a single wire to wind around the tooth base, the multiple teeth and the multiple pole shoes, and passing through three of the multiple slots of the coil carrier to extend beyond the outer annular surface of the stator frame to form three extended segments to correspond to U-phase, V-phase and W-phase output terminals of a motor, thereby reducing the number of spot-welding on a wiring board.
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公开(公告)号：US11722020B2
公开(公告)日：2023-08-08
申请号：US17240174
申请日：2021-04-26
发明人： Fu Hsiang Chung , Hong Fang Chen , Shih Wei Hung , Wei Ting Chen , Yu Chin Lin
CPC分类号： H02K1/146 , H02K3/28 , H02K3/38 , H02K3/522 , H02K5/225 , H02K15/0062 , H02K15/0068 , H02K2203/06 , H02K2203/09 , H02K2203/12
摘要： A stator of a brushless motor has an iron core, a bobbin, and a winding assembly. The iron core has multiple stator poles mounted on an interior annular surface of a core body and spaced apart from each other. The bobbin is mounted on one of two open ends of the core body and has a substrate, at least one neutral connector mounted on an upper surface of the substrate, and at least one neutral solder pad mounted in the at least one neutral connector. The winding assembly is formed by one wire wound on multiple stator poles and the connectors. The winding assembly is electrically connected to the at least one neutral solder pad.
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公开(公告)号：US20200381973A1
公开(公告)日：2020-12-03
申请号：US16429148
申请日：2019-06-03
发明人： Hong Fang Chen , Wei-Ting Chen , Wei Lin Hsu , Ju-Sheng Cheng
摘要： A brushless motor stator includes a stator core and a stator winding. The stator core has a stator frame, a coil carrier and multiple pole shoes. The coil carrier is mounted on one of the two openings of the stator frame and has a tooth base and multiple teeth. The teeth are formed on a top surface of the tooth base. The pole shoes are formed on the inner annular surface of the stator frame. The stator winding is formed by using a single wire to wind around the tooth base, the multiple teeth and the multiple pole shoes, and passing through three of the multiple slots of the coil carrier to extend beyond the outer annular surface of the stator frame to form three extended segments to correspond to U-phase, V-phase and W-phase output terminals of a motor, thereby reducing the number of spot-welding on a wiring board.
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公开(公告)号：US11833642B2
公开(公告)日：2023-12-05
申请号：US17035247
申请日：2020-09-28
发明人： Fu-Hsiang Chung , Hong Fang Chen , Wei-Ting Chen , Shih-Wei Hung , Kuo Chou Li
CPC分类号： B25B21/004 , H01F7/02 , H01F7/06 , H02K7/116 , H02K7/145
摘要： The invention relates to a power tool with an electrically controlled commutating assembly comprising: an electrically controlled commutating assembly and a control unit; the electrically controlled commutating assembly has an electromagnetic unit; the electromagnetic unit is capable of performing a change in displacement due to electromagnetic action; the control unit has a control member, the control member is capable of changing a working direction of a power tool, and displacement of the electromagnetic unit is capable of actuating the control member of the control unit to make the power tool switch the working direction.
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公开(公告)号：US20210351637A1
公开(公告)日：2021-11-11
申请号：US17240174
申请日：2021-04-26
发明人： Fu Hsiang Chung , Hong Fang Chen , Shih Wei Hung , Wei Ting Chen , Yu Chin Lin
摘要： A stator of a brushless motor has an iron core, a bobbin, and a winding assembly. The iron core has multiple stator poles mounted on an interior annular surface of a core body and spaced apart from each other. The bobbin is mounted on one of two open ends of the core body and has a substrate, at least one neutral connector mounted on an upper surface of the substrate, and at least one neutral solder pad mounted in the at least one neutral connector. The winding assembly is formed by one wire wound on multiple stator poles and the connectors. The winding assembly is electrically connected to the at least one neutral solder pad.
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