公开(公告)号：US20170276412A1

公开(公告)日：2017-09-28

申请号：US15453199

申请日：2017-03-08

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Chui You ZHOU ,  Yan Ling LIU ,  Gui Hua LI ,  Xiao Ning ZHU ,  Yong WANG

IPC: F25B39/04 ,  F04D15/00 ,  F04D29/00 ,  F04D13/06

CPC classification number: F25B39/04 ,  F04D13/0633 ,  F04D13/0693 ,  F04D15/0066 ,  F04D29/002 ,  H02K1/14 ,  H02K7/14 ,  H02K2213/03

Abstract: A cooling fan and an air-cooled refrigerator are provided. The cooling fan includes a synchronous motor and an impeller. The synchronous motor includes a stator and a permanent magnetic rotor. The permanent magnetic rotor includes a rotary shaft and a permanent magnetic rotor main body attached around the rotary shaft. The stator includes a stator core and a stator winding wound around the stator core and powered by an alternating-current power supply. The permanent magnetic rotor operates at a constant rotational speed of 60f/p during a steady state operation of the motor, where f is a frequency of the AC power source and p is the number of pole pairs of the permanent magnet poles. The impeller is connected to the rotary shaft for rotation under the driving of the rotary shaft.

公开(公告)号：US20170222526A1

公开(公告)日：2017-08-03

申请号：US15422739

申请日：2017-02-02

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Chui You ZHOU ,  Yan Ling LIU ,  Gui Hua LI ,  Xiao Ning ZHU ,  Yong WANG

IPC: H02K21/14 ,  A61M11/02 ,  H02K3/28 ,  H02K1/27 ,  H02K1/14

CPC classification number: H02K21/14 ,  A61M11/02 ,  A61M2205/0272 ,  H02K1/141 ,  H02K1/2706 ,  H02K3/28 ,  H02K21/18

Abstract: A medical pump includes a single phase synchronous motor, a rod piston, a cylinder for receiving the rod piston for reciprocating motion therein. The single phase synchronous motor includes a stator and a rotor rotatable relative to the stator. The rotor includes a plurality of permanent magnets. The stator comprises a stator core and a winding wound around the stator core. The stator core comprises two opposed pole portions that define there between a rotor receiving space for receiving the permanent magnets. The medical pump has a compact structure. In addition, the motor of the medical pump has a constant rotation speed and has a smaller size and less weight under the same output power conditions as traditional motors used in medical pumps. The medical pump is particularly suitable for use in atomizers.