Patent ID: 7670653
Filing Date: 2010-03-02
Classification: B05D,H02K

Abstract:
1. A coating method for an end winding of an electric machine, comprising the steps of: providing a laminated core of an electric machine with slots containing a conductor arrangement which is fed out of the laminated core at an end surface thereof to form an end winding; providing an electrostatic spray device; applying an electrostatic potential to the laminated core of the electric machine to thereby establish an electrostatic potential difference between the spray device and the conductor arrangement; applying a first layer material directly onto the conductor arrangement to form a first coating with the spray device such that atomized particles of the first layer material are transported along electric field lines which are generated as a result of the electrostatic potential difference; and applying a second layer material that differs from the first layer material all-round onto the first coating with the spray device such that atomized particles of the second layer material are transported along electric field lines which are generated as a result of the electrostatic potential difference.