公开(公告)号：US20160329789A1

公开(公告)日：2016-11-10

申请号：US15148802

申请日：2016-05-06

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Gang LI ,  Yong LI ,  Wei ZHANG ,  Jie CHAI

IPC: H02K21/22 ,  H02K1/27 ,  H02K3/18 ,  H02K1/14

CPC classification number: H02K21/22 ,  H02K1/146 ,  H02K1/2786 ,  H02K3/18 ,  H02K29/03

Abstract: A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The rotor includes a housing and a plurality of permanent magnets affixed to an inside of the housing. The permanent magnets are arranged spacedly along a circumferential direction. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and a plurality of teeth extending radially outwardly from an outer edge of the yoke. Each of the teeth forms a tooth tip at a distal end thereof. The tooth tip has an outer surface facing the rotor. The permanent magnet is magnetized along the circumferential direction. Two adjacent permanent magnets have opposite magnetization directions. Adjacent surfaces of two adjacent permanent magnets have the same polarity. A magnetic member is disposed between each two adjacent permanent magnets.

Abstract translation: 单相外转子电动机包括定子和围绕定子的转子。 转子包括固定在壳体内部的壳体和多个永磁体。 永磁体沿圆周方向间隔布置。 定子包括定子芯和围绕定子芯缠绕的绕组。 定子铁芯包括轭和从轭的外边缘径向向外延伸的多个齿。 每个齿在其远端处形成齿尖。 齿尖具有面向转子的外表面。 永磁体沿圆周方向被磁化。 两个相邻的永磁体具有相反的磁化方向。 两个相邻永磁体的相邻表面具有相同的极性。 磁性构件设置在每个相邻的两个永磁体之间。

公开(公告)号：US20160218586A1

公开(公告)日：2016-07-28

申请号：US15007720

申请日：2016-01-27

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Chui You ZHOU ,  Gang LI ,  Yong WANG ,  Yong LI ,  Hong Wei ZHANG

IPC: H02K5/24 ,  H02K7/08 ,  H02K1/02 ,  H02K5/14 ,  H02K23/40 ,  H02K1/17 ,  H02K5/04

CPC classification number: H02K23/40 ,  H02K5/145 ,  H02K5/15 ,  H02K11/215 ,  H02K11/40 ,  H02K2213/03

Abstract: A PMDC motor has a housing, a stator magnet disposed in an interior of the housing, and a rotor core disposed within the stator magnet. A ratio of an outer diameter of the rotor core to the outer diameter of the housing is from 0.60 to 0.67. The noise of the motor during operation is reduced by increasing the thickness of the stator magnet, reducing the outer diameter of the rotor core, reducing the air gap between the magnet and the rotor core and reducing the rotational inertia of the rotor core. The motor is particularly suited for use in vehicle HVAC systems where low noise is an important requirement.

Abstract translation: PMDC电动机具有壳体，设置在壳体内部的定子磁体和设置在定子磁体内的转子芯体。 转子芯的外径与外壳的外径的比为0.60〜0.67。 通过增加定子磁体的厚度，减小转子芯的外径，减小磁体与转子芯之间的气隙，降低转子磁芯的转动惯量，可以减少运转时电机的噪音。 该电机特别适用于低噪声是重要要求的车辆HVAC系统。