公开(公告)号：US10432073B2

公开(公告)日：2019-10-01

申请号：US15422739

申请日：2017-02-02

申请人： JOHNSON ELECTRIC INTERNATIONAL AG

发明人： Yue Li ,  Chui You Zhou ,  Yan Ling Liu ,  Gui Hua Li ,  Xiao Ning Zhu ,  Yong Wang

IPC分类号： H02K21/00 ,  H02K21/14 ,  A61M11/02 ,  H02K1/14 ,  H02K1/27 ,  H02K3/28 ,  H02K21/18

摘要： 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.