公开(公告)号：US09837878B2

公开(公告)日：2017-12-05

申请号：US14254084

申请日：2014-04-16

申请人： Black & Decker Inc.

发明人： Stephen P. Osborne ,  Ahmed S. Shaik ,  Richard T. Walter ,  Colin Crosby ,  Kevin Cox

IPC分类号： H02K11/02 ,  H02K11/026

CPC分类号： H02K11/026

摘要： A power tool is provided including a housing and an electric motor disposed within the housing, where the electric motor includes a stator and an armature rotatably received within the stator, and the armature includes an armature shaft on which a commutator is mounted. The power tool includes a brush assembly disposed around the commutator. The brush assembly includes at least two brushes in contact with the commutator and a circuit board mounted on the brush assembly and in electrical contact with the brushes. The circuit board includes at least one electromagnetic interference (EMI) suppression component electrically mounted thereon, the EMI suppression component being electrically coupled to the brushes.

公开(公告)号：US20150303777A1

公开(公告)日：2015-10-22

申请号：US14254084

申请日：2014-04-16

申请人： Black & Decker Inc.

发明人： Stephen P. Osborne ,  Ahmed S. Shaik ,  Richard T. Walter ,  Colin Crosby ,  Kevin Cox

IPC分类号： H02K11/02

CPC分类号： H02K11/026

摘要： A power tool is provided including a housing and an electric motor disposed within the housing, where the electric motor includes a stator and an armature rotatably received within the stator, and the armature includes an armature shaft on which a commutator is mounted. The power tool includes a brush assembly disposed around the commutator. The brush assembly includes at least two brushes in contact with the commutator and a circuit board mounted on the brush assembly and in electrical contact with the brushes. The circuit board includes at least one electromagnetic interference (EMI) suppression component electrically mounted thereon, the EMI suppression component being electrically coupled to the brushes.

摘要翻译： 提供了一种电动工具，包括壳体和设置在壳体内的电动机，其中电动机包括定子和可转动地容纳在定子内的电枢，并且电枢包括电枢轴，换向器安装在电枢轴上。 电动工具包括设置在换向器周围的电刷组件。 刷组件包括与换向器相接触的至少两个电刷和安装在电刷组件上并与电刷电接触的电路板。 电路板包括电气安装在其上的至少一个电磁干扰（EMI）抑制元件，EMI抑制元件电耦合到电刷。

公开(公告)号：US20180069456A1

公开(公告)日：2018-03-08

申请号：US15806867

申请日：2017-11-08

申请人： Black & Decker Inc.

发明人： Stephen P. Osborne ,  Ahmed S. Shaik ,  Richard T. Walter ,  Colin Crosby

IPC分类号： H02K11/026

CPC分类号： H02K11/026

摘要： A power tool is provided including a housing and an electric motor including a stator and an armature rotatably received within the stator. The armature includes an armature shaft on which a commutator is mounted. The power tool includes a rear bearing mounted on the armature shaft adjacent the armature, and a brush assembly disposed around the commutator. The brush assembly includes a brush card, at least two brushes secured to the brush card around and in contact with the commutator, and a bridge cap extending from the brush card via legs and forming a bearing support for supporting the rearing bearing. At least one electromagnetic interference (EMI) suppression component is provided having a first terminal electrically coupled to the brush(es) and a second terminal electrically coupled to the rear bearing through the bridge cap so as to substantially ground the second terminal of the EMI suppression component.