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公开(公告)号：US12126234B2
公开(公告)日：2024-10-22
申请号：US17484595
申请日：2021-09-24
申请人： Black & Decker Inc.
发明人： David J. Smith , Justin H. Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen Osborne , Brian Friedman , Jarrett A. Dunston
摘要： A stator assembly for a BLDC motor includes a stator core, at least one magnet wire wound on poles of the stator core, an end insulator mounted on an end surface of the stator core, a non-conductive mount member mounted on the outer circumferential surface of the stator core, and conductive terminals mounted on the non-conductive mount member. Each conductive terminal includes: a main portion mounted on the non-conductive mount, a tang portion extending from a first longitudinal end adjacent the end insulator and folded over the main portion, and a connection tab extending angularly from a second longitudinal end. A contact portion of the magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal.
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公开(公告)号：US11133720B2
公开(公告)日：2021-09-28
申请号：US16689269
申请日：2019-11-20
申请人： Black & Decker Inc.
发明人： David J. Smith , Justin H. Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen P. Osborne , Brian E. Friedman , Jarrett A. Dunston
摘要： A stator assembly for a brushless DC motor includes a stator core defining poles and having an outer surface, at least one magnet wire wound on the poles forming phases, and a bus bar including a non-conductive mount arranged on the outer surface and conductive terminals. Each conductive terminal includes: a main portion mounted on the non-conductive mount substantially parallel to the longitudinal axis of the motor, a tang portion folded over the main portion from a first longitudinal end of the main portion, and a connection tab at a second longitudinal end of the main portion. At least a contact portion of the at least one magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal, and the connection tab is arranged to makes electric contact with a wire supplying electric power to the motor.
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公开(公告)号：US20220158518A1
公开(公告)日：2022-05-19
申请号：US17666379
申请日：2022-02-07
申请人： Black & Decker Inc.
发明人： David J. Smith , Justin H. Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen Osborne , Brian Friedman , Jarrett A. Dunston
摘要： A stator assembly for a brushless DC motor includes a stator core including stator poles and an outer surface, at least one magnet wire wound on the poles forming stator windings, and a bus bar including a non-conductive mount and conductive terminals. Each conductive terminal includes: a main portion and a tang portion extending from a first longitudinal end of the main portion. At least a contact portion of the at least one magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal. The tang portion has a smaller lateral width than the main portion and is folded over the main portion to capture the contact portion of the at least one magnet wire. A power wire supply electric power to the motor is coupled to the conductive terminal proximate the second longitudinal end of the main portion.
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公开(公告)号：US10523081B2
公开(公告)日：2019-12-31
申请号：US14951667
申请日：2015-11-25
申请人： Black & Decker Inc.
摘要： A power tool is provided including a housing and an electric brushless DC (BLDG) motor housed inside the housing. The motor includes a stator, a rotor pivotably arranged inside the stator, and a motor end cap arranged at an end of the stator. At least one of the motor end cap or the stator includes flexible posts that engage a surface of the other one of the motor end cap or the stator to absorb tolerances associated with the stator and the end cap.
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公开(公告)号：US20160149474A1
公开(公告)日：2016-05-26
申请号：US14951694
申请日：2015-11-25
申请人： Black & Decker Inc.
CPC分类号： H02K5/15 , H02K1/276 , H02K1/2766 , H02K1/28 , H02K5/16 , H02K5/24 , H02K7/145 , H02K11/215 , H02K2213/12
摘要： A power tool is provided including a housing; and an electric brushless DC (BLDG) motor housed inside the housing. The motor includes a motor housing having a substantially cylindrical body and a back plate, the cylindrical body of the motor housing defining a slot at or proximate the back plate; a stator housed within the motor housing; a rotor pivotably arranged inside the stator, the rotor including a rotor shaft, a rotor core rotatably mounted on the rotor shaft and housing rotor magnets therein, and a sense magnet ring affixed to the rotor shaft and having magnets aligned with the rotor magnets; and a positional sensor board having positional sensors mounted thereon, the positional sensor board being received through the slot of the motor housing to dispose the positional sensors in close proximity to the sense magnet ring.
摘要翻译： 提供一种电动工具，包括壳体; 以及容纳在壳体内的电动无刷DC（BLDG）电动机。 电动机包括具有基本上圆柱形主体和后板的电动机壳体，电动机壳体的圆柱形主体在背板或其附近限定狭槽; 定子容纳在电动机壳体内; 转子，其可转动地布置在所述定子内部，所述转子包括转子轴，可转动地安装在所述转子轴上的壳体转子磁体的转子铁芯和固定在所述转子轴上并具有与所述转子磁体对准的磁体的感测磁环; 以及安装有位置传感器的位置传感器板，所述位置传感器板通过所述电动机壳体的狭槽接收，以将所述位置传感器配置在所述感测磁体环附近。
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公开(公告)号：US11837934B2
公开(公告)日：2023-12-05
申请号：US17666379
申请日：2022-02-07
申请人： Black & Decker Inc.
发明人： David J. Smith , Justin H. Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen Osborne , Brian Friedman , Jarrett A. Dunston
CPC分类号： H02K3/521 , H02K3/522 , H02K7/145 , H02K2203/06
摘要： A stator assembly for a brushless DC motor includes a stator core including stator poles and an outer surface, at least one magnet wire wound on the poles forming stator windings, and a bus bar including a non-conductive mount and conductive terminals. Each conductive terminal includes: a main portion and a tang portion extending from a first longitudinal end of the main portion. At least a contact portion of the at least one magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal. The tang portion has a smaller lateral width than the main portion and is folded over the main portion to capture the contact portion of the at least one magnet wire. A power wire supply electric power to the motor is coupled to the conductive terminal proximate the second longitudinal end of the main portion.
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公开(公告)号：US11283325B2
公开(公告)日：2022-03-22
申请号：US16267874
申请日：2019-02-05
申请人： BLACK & DECKER INC.
摘要： An electric brushless DC (BLDC) motor includes a stator and a rotor. The rotor includes a rotor shaft, a rotor core, a bearing, and a sense magnet ring. And end cap is radially oriented with respect to the rotor shaft and securely disposed adjacent the stator, the end cap having a first surface facing the stator, a second surface facing away from the stator, a bearing pocket centrally disposed to receive the at least one bearing of the rotor therein to support the rotor, and at least two retention features projecting from the first surface at a distance with respect to one another to form a lateral gap therebetween. A positional sensor board is radially received from a peripheral side of the end cap in contact with the first surface of the end cap and within the lateral gap between the retention features of the end cap.
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公开(公告)号：US10328566B2
公开(公告)日：2019-06-25
申请号：US15292600
申请日：2016-10-13
申请人： Black & Decker Inc.
发明人： Colin M. Crosby , Justin H. Ayers , David J. Smith , David E. Gillespie , Sumiteru Mori , Jarrett A. Dunston , Ryan F. Schroeder
IPC分类号： B25F5/00 , H02K11/33 , B24B23/02 , H02K7/116 , H02K7/14 , H02K9/06 , H02K9/22 , H02K11/215 , H02K7/08 , H02K9/04 , H02K1/14 , H02K1/27 , H02K3/18 , H02K5/20 , H02K21/16 , H02K3/34 , H02K5/10 , B25F5/02 , H02K3/487 , H02K3/52 , H02K3/38
摘要： A brushless DC (BLDC) motor is provided including a stator assembly and a rotor rotatably arranged inside the stator. The stator assembly includes a generally-cylindrical lamination stack including a stator ring and stator teeth extending radially inwardly from the stator ring towards a center bore, where the center bore is arranged to receive the rotor therein. The stator assembly further includes an end insulator disposed at an and of the lamination stack, where the end insulator includes a generally-cylindrical outer ring and teeth portions extending radially inwardly from the outer ring towards a center of the end insulator, and the outer ring and the teeth portion correspond to the stator ring and the stator teeth. Stator windings are wound around the stator teeth and the corresponding teeth portion of the end insulator. Each tooth portion includes an outer face having a sloped portion sloped at an angle in the direction of the outer ring of the end insulator to bias the stator windings towards the outer ring.
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公开(公告)号：US09819241B2
公开(公告)日：2017-11-14
申请号：US13919352
申请日：2013-06-17
申请人： Black & Decker Inc.
发明人： David J. Smith , Justin Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen Osborne , Brian Friedman , Jarrett A. Dunston
CPC分类号： H02K3/521 , H02K3/522 , H02K7/145 , H02K2203/06
摘要： A power tool includes a motor having a stator assembly and a rotor pivotably arranged inside the stator. The stator assembly includes a lamination stack defining a plurality of poles; a plurality of field windings each arranged at at least two opposite poles of said plurality of poles and connected together around the stator assembly; and a plurality of conductive terminals longitudinally arranged along an outer surface of the lamination stack and electrically coupled to the plurality of field windings and a power source.
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公开(公告)号：US20220166283A1
公开(公告)日：2022-05-26
申请号：US17666651
申请日：2022-02-08
申请人： Black & Decker Inc.
摘要： An electric brushless DC (BLDC) motor includes a motor housing having a substantially cylindrical body including an open end and a peripheral slot formed through a circumferential surface of the cylindrical body extending from the open end; a stator having stator windings; and a rotor including a rotor shaft and rotor magnets. A series of motor terminals are provided substantially adjacent one another and extending substantially parallel to an axial direction of the rotor shaft along on an outer circumferential surface of the stator. The motor terminals are at least partially received within the peripheral slot of the motor housing so as to be accessible outside the motor housing.
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