Electric motor
    2.
    发明公开
    Electric motor 审中-公开
    Elektromotor

    公开(公告)号:EP2835891A3

    公开(公告)日:2016-01-27

    申请号:EP14180417.9

    申请日:2014-08-08

    IPC分类号: H02K5/14

    摘要: An electric motor is provided including a stator and an armature rotatably received within the stator, the armature having an armature shaft on which a commutator is mounted. The motor also includes a brush assembly having a brush card mount disposed around the commutator, a brush holder mounted on a surface of the brush card mount, and a brush disposed within the brush holder in sliding contact with the commutator to supply electric current to the commutator. A back surface of the brush includes at least one curved surface and a groove. A torsion spring is secured to the brush card mount adjacent the brush holder, the spring having a leg arranged to engage the groove of the back surface of the brush.

    摘要翻译: 提供一种电动机,包括:定子,可转动地容纳在定子内的电枢,具有安装换向器的电枢轴和电刷组件。 刷组件限定面向定子的第一表面和与第一表面相对的第二表面。 刷组件包括具有开口的刷卡安装座,与换向器滑动接触以向换向器提供电流的刷子,以及容纳刷子的导热刷架。 每个电刷架包括基本上沿着与刷卡座的表面相同的平面布置以形成刷组件的第一表面的基部,以及从基部穿过刷卡的相应开口突出的主要部分 安装以至少部分地在电刷组件的第二表面上容纳相应的刷子。

    Power tool having improved motor fan assembly
    3.
    发明授权
    Power tool having improved motor fan assembly 有权
    电动工具具有改进的电机风扇组件

    公开(公告)号:EP2835894B1

    公开(公告)日:2017-06-21

    申请号:EP14180380.9

    申请日:2014-08-08

    摘要: An electric motor is provided including: a stator, an armature rotatably received within the stator and having an armature shaft on which a commutator is mounted, and a brush assembly. The brush assembly defines a first surface facing the stator and a second surface opposite the first surface. The brush assembly includes a brush card mount having openings, brushes in sliding contact with the commutator to supply electric current to the commutator, and thermally-conductive brush holders that house the brushes. Each of the brush holders includes a base portion disposed substantially along a same plane as a surface of the brush card mount to form the first surface of the brush assembly, and a main portion protruding from the base portion through a respective opening of the brush card mount to house a respective brush at least partially over the second surface of the brush assembly.

    摘要翻译: 提供了一种电动机,包括:定子,可转动地容纳在定子内并具有电枢轴的电枢以及电刷组件,电枢轴上安装有换向器。 刷组件限定面向定子的第一表面和与第一表面相对的第二表面。 电刷组件包括具有开口的电刷卡座,与换向器滑动接触以向换向器提供电流的电刷以及容纳电刷的导热刷架。 每个电刷支架包括:基部,该基部基本上沿着与电刷卡支架的表面相同的平面设置以形成电刷组件的第一表面;以及主部分,该主部分从基部突出穿过电刷卡的相应开口 安装以至少部分地在刷组件的第二表面上方容纳相应的刷子。

    Power tool having improved motor fan assembly
    4.
    发明公开
    Power tool having improved motor fan assembly 有权
    电子邮件

    公开(公告)号:EP2835894A2

    公开(公告)日:2015-02-11

    申请号:EP14180380.9

    申请日:2014-08-08

    IPC分类号: H02K9/06

    摘要: An electric motor includes a stator, an armature shaft rotatable with respect to the stator, and a lamination stack mounted on the armature shaft and having radially extending teeth forming slots therebetween circumferentially around a periphery of the lamination stack. An armature end insulator is provided at an end of the lamination stack having a base portion fitted around the armature shaft and insulating teeth corresponding to the radially extending teeth of the lamination stack and forming slots therebetween. Motor coils are wound in the lamination stack slots and the end insulator slots. The motor further includes a fan having blades attached to a fan ring and mounted to an end of the lamination stack. The fan ring includes longitudinally-extending tongues arranged to be mounted at the end of the lamination stack and the end insulator includes a plurality of longitudinally-extending notches corresponding to the tongues of the fan ring to allow the tongues to be in direct contact with the end of the lamination stack.

    摘要翻译: 电动机包括定子,可相对于定子旋转的电枢轴和安装在电枢轴上的并具有径向延伸的齿的叠片,其周向地围绕叠片的周边形成槽。 电枢端绝缘体设置在叠片堆叠的端部,其底部部分装配在电枢轴上,绝缘齿对应于层压叠层的径向延伸的齿,并在其间形成槽。 电机线圈缠绕在叠片堆叠槽和端绝缘体槽中。 电动机还包括具有附接到风扇环并且安装到层压叠层的端部的叶片的风扇。 风扇环包括纵向延伸的舌片,其布置成安装在叠片堆叠的端部处,并且端部绝缘体包括与风扇环的舌片相对应的多个纵向延伸的凹口,以允许舌片与舌片直接接触 层叠叠层的端部。

    Brush assembly for an electric motor
    6.
    发明公开
    Brush assembly for an electric motor 审中-公开
    Bürstenanordnungfüreinen elektrischen电机

    公开(公告)号:EP2835898A3

    公开(公告)日:2016-01-27

    申请号:EP14180413.8

    申请日:2014-08-08

    IPC分类号: H02K9/28

    摘要: An electric motor is provided including: a stator, an armature rotatably received within the stator and having an armature shaft on which a commutator is mounted, and a brush assembly. The brush assembly defines a first surface facing the stator and a second surface opposite the first surface. The brush assembly includes a brush card mount having openings, brushes in sliding contact with the commutator to supply electric current to the commutator, and thermally-conductive brush holders that house the brushes. Each of the brush holders includes a base portion disposed substantially along a same plane as a surface of the brush card mount to form the first surface of the brush assembly, and a main portion protruding from the base portion through a respective opening of the brush card mount to house a respective brush at least partially over the second surface of the brush assembly.

    摘要翻译: 提供一种电动机,包括:定子,可转动地容纳在定子内的电枢,具有安装换向器的电枢轴和电刷组件。 刷组件限定面向定子的第一表面和与第一表面相对的第二表面。 刷组件包括具有开口的刷卡安装座,与换向器滑动接触以向换向器提供电流的刷子,以及容纳刷子的导热刷架。 每个电刷架包括基本上沿着与刷卡座的表面相同的平面布置以形成刷组件的第一表面的基部,以及从基部穿过刷卡的相应开口突出的主要部分 安装以至少部分地在电刷组件的第二表面上容纳相应的刷子。

    Brush assembly for an electric motor
    8.
    发明公开
    Brush assembly for an electric motor 审中-公开
    电动机的电刷组件

    公开(公告)号:EP2835898A2

    公开(公告)日:2015-02-11

    申请号:EP14180413.8

    申请日:2014-08-08

    IPC分类号: H02K9/28

    摘要: An electric motor is provided including: a stator, an armature rotatably received within the stator and having an armature shaft on which a commutator is mounted, and a brush assembly. The brush assembly defines a first surface facing the stator and a second surface opposite the first surface. The brush assembly includes a brush card mount having openings, brushes in sliding contact with the commutator to supply electric current to the commutator, and thermally-conductive brush holders that house the brushes. Each of the brush holders includes a base portion disposed substantially along a same plane as a surface of the brush card mount to form the first surface of the brush assembly, and a main portion protruding from the base portion through a respective opening of the brush card mount to house a respective brush at least partially over the second surface of the brush assembly.

    摘要翻译: 提供了一种电动机,包括:定子,可转动地容纳在定子内并具有电枢轴的电枢以及电刷组件,电枢轴上安装有换向器。 刷组件限定面向定子的第一表面和与第一表面相对的第二表面。 电刷组件包括具有开口的电刷卡座,与换向器滑动接触以向换向器提供电流的电刷以及容纳电刷的导热刷架。 每个电刷支架包括:基部,该基部基本上沿着与电刷卡支架的表面相同的平面设置以形成电刷组件的第一表面;以及主部分,该主部分从基部突出穿过电刷卡的相应开口 安装以至少部分地在刷组件的第二表面上方容纳相应的刷子。

    Brush assembly for an electric motor
    9.
    发明公开
    Brush assembly for an electric motor 审中-公开
    Bürstenanordnungfüreinen elektrischen电机

    公开(公告)号:EP2835896A2

    公开(公告)日:2015-02-11

    申请号:EP14180371.8

    申请日:2014-08-08

    IPC分类号: H02K9/28

    摘要: An electric motor is provided including a stator, an armature rotatably received within the stator and having an armature shaft on which a commutator is mounted, and a brush assembly defining a first surface facing the stator and a second surface opposite the first surface. The brush assembly includes a brush card mount disposed around the commutator, brushes in sliding contact with the commutator to supply electric current to the commutator, and thermally-conductive brush holders. Each brush holder a base portion disposed substantially along a same plane as a surface of the brush card mount to form the first surface of the brush assembly, and a main portion protruding from the second surface of the brush assembly to house a respective brush. The base portions of the brush holders are exposed on the first surface of the brush assembly to transfer heat generated by the brushes through the first surface of the brush assembly.

    摘要翻译: 提供一种电动机,其包括定子,电枢可旋转地容纳在定子内并具有衔铁,安装换向器的电枢轴和限定与定子相对的第一表面的刷组件和与第一表面相对的第二表面。 电刷组件包括布置在换向器周围的电刷卡座,电刷与换向器滑动接触以向换向器供电,以及导热电刷架。 每个刷子保持件基本上沿着与刷卡安装件的表面相同的平面布置以形成刷组件的第一表面,以及从刷组件的第二表面突出以容纳相应的刷子的主要部分。 刷保持器的基部暴露在刷组件的第一表面上,以将由电刷产生的热量传递通过刷组件的第一表面。

    Power tool having improved motor fan assembly
    10.
    发明公开
    Power tool having improved motor fan assembly 审中-公开
    Elektrowerkzeug mit verbesserterMotorgebläseanordnung

    公开(公告)号:EP2835893A2

    公开(公告)日:2015-02-11

    申请号:EP14180385.8

    申请日:2014-08-08

    IPC分类号: H02K5/20

    摘要: A power tool is provided including an electric motor and a tool housing arranged to house the motor. The electric motor includes a stator, an armature rotatably with respect to the stator and having an armature shaft, and a fan rotatably attached to the armature adjacent the stator. The fan includes blades each having an angled side edge such that a longitudinal length of each blade is smaller at an outer periphery of the fan than at an inner edge of the fan blade near the armature shaft. The tool housing includes an annular rib disposed around a periphery of the housing in close proximity to the fan. The annular rib has an angled surface substantially parallel to the angled side edges of the fan blades to redirect airflow generated by the fan in a centrifugal direction of the power tool.

    摘要翻译: 提供了一种电动工具,其包括电动机和布置成容纳电动机的工具壳体。 电动机包括定子,电枢相对于定子可旋转并具有电枢轴,以及可旋转地附接到靠近定子的电枢的风扇。 风扇包括叶片,每个叶片具有成角度的侧边缘,使得每个叶片的纵向长度在风扇的外周处比在电枢轴附近的风扇叶片的内边缘处更小。 工具壳体包括围绕壳体的周边设置的环形肋,其紧邻风扇。 环形肋具有基本上平行于风扇叶片的成角度的侧边缘的成角度的表面,以便在电动工具的离心方向上改变由风扇产生的气流。