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US 12,537,427 B2Granted
Method of varnish trickling to improve emachine durability
AssigneeFord Global Technologies, LLC
InventorXiaogang Zhang
Life of this patent
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Abstract
A method to apply varnish to a stator of an e-motor includes injecting varnish at an outer diameter of a plurality of wire slots of the stator with flexible nozzle that is disposed between adjacent wire slots. The method further includes injecting varnish at an inner diameter of the wire slots.
Claims11
A method to apply varnish to a stator of an electric motor, the method comprising:
- injecting varnish at an outer diameter of a plurality of wire slots of the stator with a flexible nozzle disposed between adjacent wire slots;
- and
- injecting varnish at an inner diameter of the wire slots,
- wherein a nozzle tip of the flexible nozzle is inserted into a gap between the adjacent wire slots under a static condition.
1 more element
A method to apply varnish to a stator of an electric motor, the method comprising:
- injecting varnish at an outer diameter of a plurality of wire slots of the stator with a flexible nozzle disposed between adjacent wire slots, the injection of the varnish at the outer diameter defining a vertical axis with a center of the stator;
- and
- injecting varnish at an inner diameter of the wire slots, the injection at the inner diameter of the wire slots occurring at an angle of about 30° relative to the vertical axis,
- wherein a nozzle tip of the flexible nozzle is inserted into a gap between the adjacent wire slots under a static condition.
1 more element
Dependencies are inferred from the claim text.