Johnson Electric S.a.

Johnson Electric International Ag

Guo Dong Ren

Rui Feng Qin

Fa Yun Qi

Yong Bin Li

Di Wang

Ji Yu Liang

Yao Zhao

Sheng Han

Xiang Guo Shi

Xiao Wu Xie

Gang Hua Yu

Xian Ming Wu

An electric motor includes a stator having multiple magnetic poles and a rotor rotatably mounted to the stator. The rotor includes a shaft, a commutator and a rotor core fixed to the shaft; and windings wound on the rotor core and electrically connected to the commutator. The rotor core is formed by stacking a plurality of laminations. Each lamination includes an inner ring having a hole for fixing the shaft; an outer ring radially spaced from the inner ring; multiple teeth extending outwardly from the outer ring, and multiple ribs connecting the inner ring to the outer ring. Each rib has a width w measured in a circumferential direction of the lamination. The number of ribs is n. The width w and the number n satisfy the formula: 0.75&#x2264;n&#xd7;w&#x2264;64, where the width w is measured in millimeters.

Electric motor

An actuator includes a motor driving a worm, a gearbox, and a motor control module. The gearbox includes a gearbox housing, a worm wheel for meshing with the worm, an output mechanism fixed to the worm wheel. The gearbox housing defines worm chamber and worm wheel chamber. The motor control module includes a control module housing, a printed circuit board and a connector of the printed circuit board. The control module housing defines a control module chamber and the connector is mounted at an open end of the control module chamber. The control module housing is connected with the gearbox housing. The control module chamber and the worm wheel chamber are located on opposite sides of the worm chamber. An isolation slot is defined between the control module chamber and the worm chamber.

Actuator with reduced vibration and noise

Growing community of inventors

Shenzhen, China

Guo Dong Ren