Invention Grant
- Patent Title: Brush DC motor with permanent magnet rotor
- Patent Title (中): 带永磁转子的直流电机
-
Application No.: US13712955Application Date: 2012-12-12
-
Publication No.: US09257887B2Publication Date: 2016-02-09
- Inventor: Yue Li , Chui You Zhou , Jing Ping Tao , Hong Jian Zhang
- Applicant: Johnson Electric S.A.
- Applicant Address: CH Murten
- Assignee: Johnson Electric S.A.
- Current Assignee: Johnson Electric S.A.
- Current Assignee Address: CH Murten
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: CN201110412178 20111212
- Main IPC: H02K13/00
- IPC: H02K13/00 ; H02K13/04 ; H02K13/10 ; H02K5/14 ; H02K23/00 ; H01R39/00 ; H01R39/04 ; H01R39/38 ; H01R39/39 ; H02K23/62

Abstract:
A direct current motor has a wound stator, a permanent magnet rotor having a commutator assembly, and brush gear. The brush gear has a first pole brush, a second pole brush and a plurality of commutating brushes. The commutator assembly has a cylindrical insulating base, and first and second members fixed to the base. The first member includes a radially extending first slip ring and a number of axially extending first bars. The second member includes a radially extending second slip ring and a number of axially extending second bars. The first and second pole brushes make continuous sliding contact with the first and second slip rings respectively. The first and second bars are fixed to the outer cylindrical surface of the base and form a cylindrical surface against which the commutating brushes make sliding contact.
Public/Granted literature
- US20130147311A1 BRUSH DC MOTOR WITH PERMANENT MAGNET ROTOR Public/Granted day:2013-06-13
Information query