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Varnish impregnation apparatus and varnish impregnation method

  • US 10,148,158 B2
  • Filed: 06/11/2014
  • Issued: 12/04/2018
  • Est. Priority Date: 07/12/2013
  • Status: Active Grant
First Claim
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1. A varnish impregnation apparatus that impregnates a stator coil mounted to a stator core, in which a slot opens toward a radially inner side, with varnish, comprising:

  • a support that supports a stator, in which the stator coil is mounted to the stator core, with an axial direction of the stator directed in a horizontal direction while grasping a radially outer side of the stator, and that is rotationally driven by a rotary device to rotate the stator, whereinthe support has a grip that grasps the radially outer side of the stator and is disposed only inside of both end surfaces of the stator core in the axial direction, and on an outer peripheral side of the stator core, anda varnish dropping device that drops the varnish toward a coil end portion of the stator which is rotated while being supported by the support; and

    a heater disposed in a cavity portion provided at an axial center of the stator core of the stator supported by the support to heat the stator from a radially inner side of the stator.

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