公开(公告)号：US20150303753A1

公开(公告)日：2015-10-22

申请号：US14693450

申请日：2015-04-22

Applicant: Johnson Electric S.A.

Inventor： Ning HUANG ,  James Ching Sik LAU ,  Bhoopal PONNUVELU

IPC: H02K1/30 ,  B29C45/14 ,  H02K15/03 ,  H02K1/27 ,  H02K9/06

CPC classification number: H02K1/30 ,  H02K1/185 ,  H02K1/2786 ,  H02K1/28 ,  H02K5/04 ,  H02K9/06 ,  H02K11/33 ,  H02K15/03

Abstract: An outer rotor for a brushless motor has an end plate; a shaft fixed to a rotary center of the end plate; and an annular rotor core having one end connected to the end plate. A plurality of connecting bars connect the rotor core to the end plate. Permanent magnets are fixed to an inner surface of the rotor core. The end plate has an outer diameter equal to or less than the outer diameter of the rotor core. The end plate has a base plate, an annular sidewall, and a plurality of fan blades interconnecting the base plate and the sidewall. There are openings between the fan blades. The end plate is insert molded to the shaft and the connecting bars.

Abstract translation: 无刷电动机的外转子具有端板; 固定到端板的旋转中心的轴; 以及环形转子铁芯，其一端连接到端板。 多个连接杆将转子芯连接到端板。 永磁体固定在转子铁芯的内表面上。 端板的外径等于或小于转子芯的外径。 端板具有基板，环形侧壁和互连基板和侧壁的多个风扇叶片。 风扇叶片之间有开口。 端板插入模制到轴和连接杆。

公开(公告)号：US20180132684A1

公开(公告)日：2018-05-17

申请号：US15806028

申请日：2017-11-07

Applicant: Johnson Electric S.A.

Inventor： Ronny KEIL ,  Bhoopal PONNUVELU ,  Kwong Yip POON

IPC: A47L9/04 ,  H02K1/18 ,  H02K1/27 ,  H02K5/16 ,  H02K7/08 ,  H02K7/14 ,  H02K15/14

CPC classification number: A47L9/0411 ,  A47L9/0455 ,  A47L9/0477 ,  H02K1/187 ,  H02K1/2786 ,  H02K5/16 ,  H02K5/1735 ,  H02K7/083 ,  H02K7/14 ,  H02K15/14 ,  H02K21/22

Abstract: An outer rotor motor includes an inner stator and an outer rotor. The inner stator includes a stator frame and a stator unit mounted to the stator frame. The outer rotor includes a shaft and a rotor unit fixed to the shaft. The stator frame is integrally formed from plastic as an integral structure and comprises a base and a hub extending from the base, the hub forms a chamber therein, supporting components are installed in the chamber, and the shaft extends into the chamber and supported by the supporting components such that the shaft is rotatable relative to the stator frame. In the present invention, the stator frame has an integral structure made of plastic which simplifies the structure of the motor and reduces the cost of the motor. The present invention further provides a vacuum cleaner that employs the motor.

公开(公告)号：US20170353093A1

公开(公告)日：2017-12-07

申请号：US15613870

申请日：2017-06-05

Applicant: Johnson Electric S.A.

Inventor： Ronny KEIL ,  Kwong Yip POON ,  Bhoopal PONNUVELU

IPC: H02K23/40 ,  H02K37/14 ,  H02K23/04

Abstract: A rotor includes a magnet yoke and a number of permanent magnets. The magnet yoke defines a number of accommodating slots therein, and each of the permanent magnets is received in one of the accommodating slots. An elastic member protrudes from the magnet yoke towards each of the accommodating slots, the permanent magnets are inserted in the corresponding accommodating slots, and the elastic members are bent and abut against the permanent magnets. A motor and a power tool include the rotor are also disclosed.