公开(公告)号：US4433263A

公开(公告)日：1984-02-21

申请号：US391127

申请日：1982-06-23

申请人： Richard E. Longhouse ,  William D. Cornwell, Jr. ,  Harry C. Buchanan, Jr.

发明人： Richard E. Longhouse ,  William D. Cornwell, Jr. ,  Harry C. Buchanan, Jr.

IPC分类号： H01R39/06 ,  H02K13/10 ,  H02K13/04

CPC分类号： H01R39/06 ,  H02K13/10

摘要： A commutator has a plurality of spaced, electrically conducting segments, each of which has a physical dimension determining the relative time duration of brush contact with said segment during commutator rotation with audible brush noise being generated between the brush and said consecutive segments, the noise including a fundamental frequency component at a frequency related to the frequency at which the consecutive segments pass the brush. The physical dimension of the consecutive segments varies from each segment to the next according to a predetermined pattern effective to vary the relative time of brush contact from each segment to the next during rotation and thus reduce the amplitude of the fundamental frequency components to make the brush noise less tonal in character and thus less annoying.

摘要翻译： 换向器具有多个间隔的导电段，每个具有确定在换向器旋转期间刷子与所述段接触的相对持续时间的物理尺寸，其中在电刷和所述连续段之间产生可听见的电刷噪声，噪声包括 在与连续片段通过刷子的频率相关的频率处的基本频率分量。 连续片段的物理尺寸根据预定图案从每个片段到下一个部分变化，以有效地改变在旋转期间每个片段到下一个片段的刷接触的相对时间，从而减小基本频率分量的幅度，以使刷 噪音较少，色调不那么恼人。

公开(公告)号：US4329605A

公开(公告)日：1982-05-11

申请号：US196355

申请日：1980-10-14

申请人： Donald F. Angi ,  William D. Cornwell, Jr.

发明人： Donald F. Angi ,  William D. Cornwell, Jr.

IPC分类号： H01R39/46 ,  H02K11/02 ,  H02K13/14 ,  H02K11/00

CPC分类号： H02K11/024

摘要： Two spaced capacitors are connected in parallel across each supply lead of a brush-commutator type electric motor and the motor frame to provide a PI filter for each brush in which the length of brush lead between the capacitors comprises the inductor element of the filter. To facilitate this arrangement, one of the capacitors for each brush is mounted upon one side of an annular support member of an insulating material and an electrically conductive plate arranged to electrically engage the motor frame upon assembly is mounted upon the other side with electrical connections extending through the support member to interconnect one terminal end of each of the capacitors to the conductive plate and to secure the conductive plate to the support member.

摘要翻译： 两个间隔开的电容器并联连接在电刷换向器型电动机的电源引线和电动机框架之间，为每个电刷提供PI滤波器，其中电容器之间的电刷引线的长度包括滤波器的电感器元件。 为了促进这种布置，每个电刷的电容器中的一个安装在绝缘材料的环形支撑构件的一侧，并且布置成在组装时电动接合电动机框架的导电板被安装在另一侧上，电连接延伸 通过支撑构件将每个电容器的一个端子与导电板互连并将导电板固定到支撑构件上。