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Stator of motor having insulation structure for separation of stator winding groups

  • US 9,973,052 B2
  • Filed: 05/26/2016
  • Issued: 05/15/2018
  • Est. Priority Date: 08/16/2011
  • Status: Active Grant
First Claim
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1. A stator of a motor, the stator comprising:

  • a stator core including a plurality of teeth;

    a plurality of coils wound on the plurality of teeth, respectively;

    a bus bar coupled to an upper side of the stator core;

    a terminal radially protruded from an outer circumferential surface of the bus bar; and

    an insulation plate extended from a bottom surface of the bus bar;

    wherein the plurality of coils comprises a plurality of coil terminals disposed on distal ends of the plurality of coils, respectively, and upwardly protruded from the stator core;

    wherein the terminal is coupled with the plurality of coil terminals,wherein the plurality of coils comprises a first coil, a second coil adjacent to the first coil, and a third coil opposite to the first coil;

    wherein at least a portion of the insulation plate is disposed between the first coil and the second coil to insulate the first coil from the second coil,wherein a distance between the first coil and the third coil is longer than an outer diameter of the bus bar,wherein the plurality of coils do not pass through the bus bar,wherein the insulation plate is integrally formed with the bus bar, andwherein a length of the insulation plate in a radial direction of the stator core is shorter than a length of each wound coil in the radial direction of the stator core.

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