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1. 发明申请

US20130270934A1 STATOR ASSEMBLY FOR A BRUSHLESS MOTOR IN A POWER TOOL 有权
标题翻译：电动工具中无刷电机的定子组件
公开(公告)号：US20130270934A1
公开(公告)日：2013-10-17
申请号：US13919352
申请日：2013-06-17
申请人： David J. Smith , Justin Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen Osborne , Brian Friedman , Jarrett A. Dunston
发明人： David J. Smith , Justin Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen Osborne , Brian Friedman , Jarrett A. Dunston
IPC分类号： H02K3/52 , H02K7/14
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.
摘要翻译：电动工具包括具有定子组件的电动机和可枢转地布置在定子内部的转子。定子组件包括限定多个极的叠片; 多个励磁绕组，其各自布置在所述多个极的至少两个相对的极处并且围绕定子组件连接在一起; 以及多个导电端子，其沿着层压叠层的外表面纵向排列并且电耦合到多个励磁绕组和电源。

2. 发明申请

US20130342041A1 STATOR ASSEMBLY FOR A BRUSHLESS MOTOR IN A POWER TOOL 审中-公开
标题翻译：电动工具中无刷电机的定子组件
公开(公告)号：US20130342041A1
公开(公告)日：2013-12-26
申请号：US13919413
申请日：2013-06-17
申请人： Justin Ayers , David E. Gillespie , David J. Smith , Jarrett A. Dunston
发明人： Justin Ayers , David E. Gillespie , David J. Smith , Jarrett A. Dunston
IPC分类号： H02K3/34 , H02K7/14
CPC分类号： H02K3/34 , B25F5/00 , H02K7/145 , H02K2203/09 , H02P6/12 , H02P6/14 , H02P27/08 , H02P29/68
摘要： A power tool is provided including a housing and a motor housed inside the housing. The motor includes a stator assembly and a rotor pivotably arranged inside the stator assembly. The stator assembly includes a lamination stack defining poles extending radially towards a center of the lamination stack, pole teeth extending laterally with respect to ends of the poles, and stator slots formed between adjacent poles. The stator assembly also includes field windings wound around the poles. Electrically non-conductive tooth damper inserts are longitudinally arranged inside the stator slots between adjacent field windings, each tooth damper insert including a radial outer end in contact with an outer wall of the slot and a radial inner end arranged at an open end of the slot and engaging lateral edges of two opposing teeth within the slot.
摘要翻译：提供一种电动工具，其包括容纳在壳体内的壳体和马达。电动机包括定子组件和可枢转地布置在定子组件内部的转子。定子组件包括层叠叠片，其限定了朝向叠片堆叠的中心径向延伸的磁极，相对于磁极的端部横向延伸的极齿以及相邻磁极之间形成的定子槽。定子组件还包括绕磁极缠绕的励磁绕组。电气非导电齿阻尼器插入件纵向布置在相邻的场绕组之间的定子槽内，每个齿阻尼器插入件包括与槽的外壁接触的径向外端和布置在槽的开口端的径向内端并且在狭槽内接合两个相对的齿的侧边缘。

3. 发明申请

US20100013336A1 Anchoring System For A Stator Housing Assembly Having An Overmolding; Power Tool With Same 审中-公开
标题翻译：具有二次成型的定子壳体组件的锚定系统; 电动工具一样
公开(公告)号：US20100013336A1
公开(公告)日：2010-01-21
申请号：US12443196
申请日：2007-10-12
申请人： Earl M. Ortt , David J. Smith , Eric E. Hatfield
发明人： Earl M. Ortt , David J. Smith , Eric E. Hatfield
IPC分类号： H02K1/18 , H02K7/14
CPC分类号： H02K1/17 , H02K5/08 , H02K15/12 , Y10T29/49012
摘要： A permanent magnet electric motor has a stator and a rotor The stator has a stator housing with opposed axial ends and features skived in the stator housing to extend radially inwardly from an inner surface of the stator housing proximate to at least one of the axial ends of the stator housing. An overmolding of material is molded around the features. In an aspect, the overmolding of material is a magnetic composite material and is molded to form magnets. In an aspect, magnets are placed on the inner surface of the stator housing and the overmolding of material is a plastic that is over molded around the magnets and the features. In an aspect, the features hold the magnets in place during the molding of the overmolding around the magnets. In an aspect, the magnets have essentially the same inner radius and outer radius and the overmolding of material is thicker at edges of each magnet than at the center of each magnet. In an aspect, the magnets are flat magnets and the overmolding of material is thicker at edges of each magnet than at the center of each magnet. In an aspect a power tool has such a permanent magnet DC motor. In an aspect, a power tool has a housing with a permanent magnet electric motor in the housing, with an member coupled to the electric motor. The electric motor has a rotor and a stator but not an end plate. The stator has a stator housing having opposed axial ends and a plurality of magnets affixed to an inner surface of the stator housing and an overmolding of material molded around the magnets. The overmolding of material includes a pilot feature that mates with a pilot feature of a bearing support of the power tool.
摘要翻译：永磁电动机具有定子和转子。定子具有定子壳体，该定子壳体具有相对的轴向端部，并且具有在定子壳体中滑动的特征，以从定子壳体的内表面径向向内延伸，接近至少一个轴向端部定子外壳。围绕特征模制材料的包覆成型。在一方面，材料的包覆成型是磁性复合材料，并且被模制以形成磁体。在一个方面，磁体被放置在定子壳体的内表面上，并且材料的包覆成型是围绕磁体和特征模制的塑料。在一个方面，在围绕磁体的包覆成型的模制期间，这些特征将磁体保持就位。在一方面，磁体具有基本上相同的内半径和外半径，并且材料的包覆成型在每个磁体的边缘处比在每个磁体的中心处更厚。在一个方面，磁体是平坦的磁体，并且材料的包覆成型在每个磁体的边缘比在每个磁体的中心处更厚。在一个方面，电动工具具有这样的永磁直流电动机。一方面，电动工具具有在壳体中具有永磁电动机的壳体，其中联接到电动机的构件。电动机具有转子和定子，但不具有端板。定子具有定子壳体，其具有相对的轴向端部和固定到定子壳体的内表面上的多个磁体以及围绕磁体模制的材料的二次模制。材料的包覆成型包括与电动工具的轴承支撑件的先导特征配合的先导特征。

4. 发明授权

US07687964B2 Electric motor having a field assembly with slot insulation 有权
标题翻译：电动机具有带槽绝缘的现场组件
公开(公告)号：US07687964B2
公开(公告)日：2010-03-30
申请号：US12425479
申请日：2009-04-17
申请人： Hung T. Du , Brandon L. Verbrugge , Earl M. Ortt , Michael J. Agnes , Michael A. Zemlock , Robert G. Kusmierski , David J. Smith
发明人： Hung T. Du , Brandon L. Verbrugge , Earl M. Ortt , Michael J. Agnes , Michael A. Zemlock , Robert G. Kusmierski , David J. Smith
IPC分类号： H02K3/34
CPC分类号： H02K15/0435 , H02K1/148 , H02K1/18 , H02K3/325 , H02K3/522 , H02K15/10 , H02K15/12 , Y10T29/49009 , Y10T29/49012 , Y10T29/49071 , Y10T29/49073 , Y10T29/53143
摘要： An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.
摘要翻译：电动机具有诸如定子的现场组件，用于电动机具有卷绕成网状的励磁线圈。引线从每个励磁线圈的端部引出。励磁线圈用绝缘套管或绝缘槽衬垫绝缘。励磁线圈与诸如极片和返回路径片的定子铁芯片组装到定子中。在与励磁线圈组装之前形成定子铁芯片。在本发明的一个方面中，磁极片和返回路径片被分开地形成，然后与已经分开形成的励磁线圈组装在一起。

5. 发明申请

US20090200891A1 Electric Motor Having A Field Assembly With Slot Insulation 有权
标题翻译：具有插槽绝缘的现场组装的电动机
公开(公告)号：US20090200891A1
公开(公告)日：2009-08-13
申请号：US12425479
申请日：2009-04-17
申请人： Hung T. Du , Brandon L. Verbrugge , Earl M. Ortt , Michael J. Agnes , Michael A. Zemlock , Robert G. Kusmierski , David J. Smith
发明人： Hung T. Du , Brandon L. Verbrugge , Earl M. Ortt , Michael J. Agnes , Michael A. Zemlock , Robert G. Kusmierski , David J. Smith
IPC分类号： H02K3/34
CPC分类号： H02K15/0435 , H02K1/148 , H02K1/18 , H02K3/325 , H02K3/522 , H02K15/10 , H02K15/12 , Y10T29/49009 , Y10T29/49012 , Y10T29/49071 , Y10T29/49073 , Y10T29/53143
摘要： An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.
摘要翻译：电动机具有诸如定子的现场组件，用于电动机具有卷绕成网状的励磁线圈。引线从每个励磁线圈的端部引出。励磁线圈用绝缘套管或绝缘槽衬垫绝缘。励磁线圈与诸如极片和返回路径片的定子铁芯片组装到定子中。在与励磁线圈组装之前形成定子铁芯片。在本发明的一个方面中，磁极片和返回路径片被分开地形成，然后与已经分开形成的励磁线圈组装在一起。

6. 发明授权

US06664701B1 Brush assembly 失效
标题翻译：刷子总成
公开(公告)号：US06664701B1
公开(公告)日：2003-12-16
申请号：US10171180
申请日：2002-06-13
申请人： Earl M. Ortt , David J. Smith
发明人： Earl M. Ortt , David J. Smith
IPC分类号： H02K1310
CPC分类号： H01R39/385 , H01R39/415 , H02K5/148 , Y10T29/49002 , Y10T29/49009 , Y10T29/49117 , Y10T29/49119
摘要： A brush assembly has a base with a member to secure the base to a motor end cap assembly. A brush housing is associated with the base. The brush housing includes first and second open ends. A brush, defining an axis, is slidably supported within the housing. The brush extends from one of the first and second open ends. The brush includes a surface with a spring retention plunge. The spring retention plunge defines an arcuate face angled relative to the axis. A biasing member exerts a force directly on the arcuate face to bias the brush into contract with a commutator. An electrical connection is made between the commutator and a power supply.
摘要翻译：电刷组件具有带有用于将基座固定到电动机端盖组件的构件的基座。刷子壳体与底座相关联。电刷外壳包括第一和第二开口端。限定轴线的刷子可滑动地支撑在壳体内。刷从第一和第二开口端中的一个延伸。刷子包括具有弹簧保持插入的表面。弹簧保持插入限定了相对于轴线成角度的弧形面。偏置构件直接在弓形面上施加力，以将刷子偏置成与换向器收缩。在换向器和电源之间进行电气连接。

7. 发明授权

US08171616B2 Method of making an armature 有权
标题翻译：制作电枢的方法
公开(公告)号：US08171616B2
公开(公告)日：2012-05-08
申请号：US13023854
申请日：2011-02-09
申请人： David J. Smith , John C. Stone , Robert Tumberlinson , Earl M. Ortt
发明人： David J. Smith , John C. Stone , Robert Tumberlinson , Earl M. Ortt
IPC分类号： H01R43/10
CPC分类号： H02K3/44 , Y10T29/49 , Y10T29/49009 , Y10T29/49011 , Y10T29/49012 , Y10T29/49071 , Y10T29/53148
摘要： An armature for an electric motor has a lamination stack on a shaft with a commutator mounted on one end of the shaft. Magnet wires wound in slots in the lamination stack, the commutator and armature shaft are at least partially encapsulated in thermoset. The commutator has a commutator ring divided into a plurality of segments with slots between the segments that are filled with a second plastic when the commutator is made by molding a core of the second plastic, such as phenolic, in the commutator ring before the commutator ring is mounted on the armature shaft. Prior to molding the thermoset, the commutator ring is sealed. The seal prevents the thermoset from flowing into the slots between the commutator ring segments or over the commutator ring.
摘要翻译：用于电动机的电枢在轴上具有叠片，其上安装有在轴的一端上的换向器。缠绕在叠片堆叠中的槽中的磁铁线，换向器和电枢轴至少部分地封装在热固性材料中。换向器具有一个换向器环，当换向器通过在换向器环之前在换向器环中模制第二塑料（例如酚醛树脂）的芯而制成换向器安装在电枢轴上。在模制热固性材料之前，将换向器环密封。密封件防止热固性材料流入换向器环段之间或换向器环上的槽中。

8. 发明申请

US20110126399A1 METHOD OF MAKING AN ARMATURE 有权
标题翻译：制造手段的方法
公开(公告)号：US20110126399A1
公开(公告)日：2011-06-02
申请号：US13023854
申请日：2011-02-09
申请人： David J. Smith , John C. Stone , Robert Tumberlinson , Earl M. Ortt
发明人： David J. Smith , John C. Stone , Robert Tumberlinson , Earl M. Ortt
IPC分类号： H02K15/00
CPC分类号： H02K3/44 , Y10T29/49 , Y10T29/49009 , Y10T29/49011 , Y10T29/49012 , Y10T29/49071 , Y10T29/53148
摘要： An armature for an electric motor has a lamination stack on a shaft with a commutator mounted on one end of the shaft. Magnet wires wound in slots in the lamination stack, the commutator and armature shaft are at least partially encapsulated in thermoset. The commutator has a commutator ring divided into a plurality of segments with slots between the segments that are filled with a second plastic when the commutator is made by molding a core of the second plastic, such as phenolic, in the commutator ring before the commutator ring is mounted on the armature shaft. Prior to molding the thermoset, the commutator ring is sealed. The seal prevents the thermoset from flowing into the slots between the commutator ring segments or over the commutator ring.
摘要翻译：用于电动机的电枢在轴上具有叠片，其上安装有在轴的一端上的换向器。缠绕在叠片堆叠中的槽中的磁铁线，换向器和电枢轴至少部分地封装在热固性材料中。换向器具有分成多个段的换向器环，当换向器通过在换向器环之前在换向器环中成型第二塑料（例如酚醛树脂）的芯而制成时，在段之间具有狭槽的槽，其间填充有第二塑料安装在电枢轴上。在模制热固性材料之前，将换向器环密封。密封件防止热固性材料流入换向器环段之间或换向器环上的槽中。

9. 发明授权

US07096566B2 Method for making an encapsulated coil structure 有权
标题翻译：制造封装线圈结构的方法
公开(公告)号：US07096566B2
公开(公告)日：2006-08-29
申请号：US10616871
申请日：2003-07-10
申请人： Hung T. Du , Brandon L. Verbrugge , Joshua F. West , Michael R. Sell , Richard T. Walter , David J. Smith , Earl M. Ortt , John C. Stone , Howard T. White
发明人： Hung T. Du , Brandon L. Verbrugge , Joshua F. West , Michael R. Sell , Richard T. Walter , David J. Smith , Earl M. Ortt , John C. Stone , Howard T. White
IPC分类号： H02K15/00 , H02K15/14 , H02K15/16
CPC分类号： H02K1/30 , H01R43/10 , H02K1/32 , H02K3/12 , H02K3/30 , H02K3/345 , H02K3/46 , H02K3/48 , H02K3/487 , H02K3/50 , H02K3/51 , H02K7/04 , H02K9/06 , H02K9/20 , H02K9/22 , H02K13/006 , H02K13/04 , H02K15/0056 , H02K15/02 , H02K15/12 , H02K15/165 , Y10T29/49 , Y10T29/49009 , Y10T29/49011 , Y10T29/49012 , Y10T29/49071 , Y10T29/49073 , Y10T29/53148
摘要： Magnet wires wound in slots in a lamination stack of a dynamoelectric machine are encapsulated, in whole or in part, with plastic. The plastic may be thermally conductive and have features molded therein that enhance heat transfer. The plastic may stiffen the armature and increase its critical speed. Characteristics of the plastic, its geometry and its distribution may be varied to adjust spinning inertia and resonant frequency of the armature. The magnet wires may be compressed into the slots, by application of iso-static pressure or by the pressure of the plastic being molded around them. Larger magnet wire can then be used which increases the power of the electric motor using the armature having the larger magnet wire. A two or three plate mold may be used to mold the plastic around the armature. Balancing features can be molded in place. The plastic can have a base polymer that is a blend of two or more polymers and various thermally conductive fillings.
摘要翻译：缠绕在电动机的叠片中的槽中的磁铁丝全部或部分地用塑料封装。塑料可以是导热的并且具有模制在其中的特征，其增强热传递。塑料可能使电枢变硬，并增加其临界转速。可以改变塑料的特性，其几何形状及其分布，以调整电枢的旋转惯性和谐振频率。电磁线可以通过施加等静压力或塑料周围的塑料的压力被压缩到槽中。然后可以使用较大的电磁线，其使用具有较大磁体线的电枢增加电动机的功率。可以使用两个或三个平板模具来模制电枢周围的塑料。平衡功能可以模制到位。塑料可以具有基础聚合物，其是两种或更多种聚合物和各种导热填料的共混物。

10. 发明授权

US07528520B2 Electric motor having a field assembly with slot insulation 有权
标题翻译：电动机具有带槽绝缘的现场组件
公开(公告)号：US07528520B2
公开(公告)日：2009-05-05
申请号：US11542826
申请日：2006-10-04
申请人： Hung T. Du , Brandon L. Verbrugge , Earl M. Ortt , Michael J. Agnes , Michael A. Zemlok , Robert G. Kusmierski , David J. Smith
发明人： Hung T. Du , Brandon L. Verbrugge , Earl M. Ortt , Michael J. Agnes , Michael A. Zemlok , Robert G. Kusmierski , David J. Smith
IPC分类号： H02K1/18
CPC分类号： H02K15/0435 , H02K1/148 , H02K1/18 , H02K3/325 , H02K3/522 , H02K15/10 , H02K15/12 , Y10T29/49009 , Y10T29/49012 , Y10T29/49071 , Y10T29/49073 , Y10T29/53143
摘要： An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.
摘要翻译：电动机具有诸如定子的现场组件，用于电动机具有卷绕成网状的励磁线圈。引线从每个励磁线圈的端部引出。励磁线圈用绝缘套管或绝缘槽衬垫绝缘。励磁线圈与诸如极片和返回路径片的定子铁芯片组装到定子中。在与励磁线圈组装之前形成定子铁芯片。在本发明的一个方面中，磁极片和返回路径片被分开地形成，然后与已经分开形成的励磁线圈组装在一起。

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