公开(公告)号：US20170271832A1

公开(公告)日：2017-09-21

申请号：US15460881

申请日：2017-03-16

Applicant: Johnson Electric S.A.

Inventor： Jing Chao ZHENG ,  Chi Man LAW ,  Xiu Xian WANG

IPC: H01R39/02 ,  H02K13/04 ,  H01R43/06 ,  H01R39/04 ,  H01R39/32 ,  H02K13/00 ,  H02K15/00

CPC classification number: H01R39/025 ,  H01R39/045 ,  H01R43/06

Abstract: The invention relates to a commutator, comprising an insulating base and a plurality of commutator segments arranged on the insulating base, wherein each commutator segment comprises a metal layer, a transition layer and a graphite layer arranged on the base in sequence. The transition layer contains a material identical to that of the graphite layer and a material identical to that of the metal layer. The invention further relates to a motor comprising the commutator and a method for manufacturing the commutator. As the transition layer contains the material identical to that of the graphite layer and the metal layer, the problem that the graphite layer and the metal layer are cracked during high temperature sintering is resolved. The service life of the commutator is prolonged. The method for manufacturing the commutator reduces chemical contamination and production cost caused by electroplating and brazing used in a traditional technology.

公开(公告)号：US20150284251A1

公开(公告)日：2015-10-08

申请号：US14677306

申请日：2015-04-02

Applicant: Johnson Electric S.A.

Inventor： Jing Chao ZHENG ,  Yiu Chung WU ,  Chi Man LAW ,  Xiu Xian WANG

IPC: C01B31/00 ,  H01R43/06 ,  H02K13/00 ,  H01R39/04 ,  C01B31/02 ,  H02K13/04

CPC classification number: H01R39/045 ,  C01B32/00 ,  C01B32/05 ,  C01P2006/10 ,  C01P2006/40 ,  C04B35/528 ,  C04B35/6267 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/604 ,  C04B2235/77 ,  C04B2235/96 ,  C09C1/44 ,  C09C1/46 ,  H01R43/06

Abstract: A carbon product is made of mesocarbon microbeads and graphite. Preferably, the weight percent of mesocarbon microbeads is 50-99% and the weight percent of graphite is 1-50%. Preferably, when the graphite is carbon-graphite, the carbon product has a density in the range of 1.6-1.8 g/cm3 and a resistivity in the range of 2000-8000 μΩ·cm. Preferably, when the graphite is electro-graphite, the carbon product has a density in the range of 1.85-1.95 g/cm3 and a resistivity in the range of 500-2000 μΩ·cm. The carbon product may be a carbon brush, a carbon bearing, a carbon seal or a brush contact member for a commutator of an electric motor.

Abstract translation: 碳产品由中间相碳微球和石墨制成。 中间相碳微球的重量百分比优选为50-99％，石墨的重量百分比为1-50％。 优选地，当石墨为碳 - 石墨时，碳产物的密度范围为1.6-1.8g / cm3，电阻率为2000-8000μΩ·cm·cm。 优选地，当石墨为电石墨时，碳产物的密度范围为1.85-1.95g / cm 3，电阻率为500-2000μΩ·cm·cm。 碳产品可以是用于电动机的换向器的碳刷，碳轴承，碳密封或刷接触构件。

公开(公告)号：US20130264906A1

公开(公告)日：2013-10-10

申请号：US13857728

申请日：2013-04-05

Applicant: JOHNSON ELECTRIC S.A.

Inventor： James Ching Sik LAU ,  Jing Chao ZHENG

IPC: H01R39/24

CPC classification number: H01R39/24 ,  H01R39/50

Abstract: A multi-layer brush for making sliding contact with a commutator of an electric motor, includes a body and a shunt. The body includes a first electrically conductive layer, a second electrically conductive layer, and a partition layer disposed between the first and second conductive layers and electrically separating the first and second conductive layers. The shunt is coupled to the first conductive layer. The first conductive layer has a thickness greater than a thickness of the second conductive layer and the partition layer has a lateral leakage resistance greater than the longitudinal resistance of the first and second conductive layers.

Abstract translation: 用于与电动机的换向器滑动接触的多层刷子包括主体和分流器。 本体包括第一导电层，第二导电层和设置在第一和第二导电层之间并分隔第一和第二导电层的分隔层。 分流器耦合到第一导电层。 第一导电层的厚度大于第二导电层的厚度，并且隔离层具有大于第一和第二导电层的纵向电阻的横向泄漏电阻。