公开(公告)号：US3853429A

公开(公告)日：1974-12-10

申请号：US37475073

申请日：1973-06-28

Applicant: EHEIM G

Inventor： WIEDENMANN W

IPC: A01K63/04 ,  F04D13/06 ,  F04D29/04 ,  F04D29/047 ,  F04D29/24 ,  H02K5/128 ,  H02K21/14 ,  F04B17/00

CPC classification number: F04D29/047 ,  A01K63/047 ,  F04D13/06 ,  F04D13/0633 ,  F04D13/064 ,  F04D29/247 ,  H02K5/1285 ,  H02K21/145 ,  H02K2201/12

Abstract: To permit submerged operation, the motor is formed as a synchronous motor, in which a coil is totally encapsulated in plastic material, the coil being toroidal and having end ferromagnetic disks above and below the coil, the disks being alternately supplied with inner pole faces, in the form of sections or strips of a cylinder, defining a cylindrical space within which a permanent magnet rotor can rotate. The cylindrical strips are formed with cut-outs, so that the magnetic field will be unsymmetrical, thus establishing a rotating field. The pole faces are separated from the rotor by plastic material, the rotor being integrally connected to the hub of an impeller for the pump.

Abstract translation: 为了允许水下操作，马达形成为同步电动机，其中线圈被完全封装在塑料材料中，线圈是环形的并且具有在线圈上方和下方的端铁磁盘，盘交替地被供给内极面， 以圆柱体的截面或条形的形式，限定永磁转子可旋转的圆柱形空间。 圆柱形条形成有切口，使得磁场将不对称，从而建立旋转场。 极面通过塑料材料与转子分开，转子与泵叶轮的毂一体连接。