Granted Patent B2

US 12,633,808 · App. 18/028,611 · Granted May 19, 2026

Inventors: Michael Bernhardt (Bad Neustadt, DE); Vladislav josiek (Havirov, CZ); Klaus Kirchner (Ostheim, DE)

Assignee: Innomotics GmbH

H02K15/13H02K3/487

Abstract

Claims (20)

1 . A slot wedge for a slot in a stator of a dynamo-electric machine; wherein the slot wedge is formed as a longitudinally extending strip made from insulating material; and wherein a punched portion, extending in a same longitudinal direction as sides of the slot wedge and protruding into an interior space formed between the sides of the slot wedge, is arranged in the longitudinally extending strip at a bottom of the slot wedge.

2 . The slot wedge as claimed in claim 1 , wherein the punched portion is arranged in a region of the longitudinally extending strip which lies essentially within a slot slit region when the longitudinally extending strip is positioned in the slot.

3 . The slot wedge as claimed in claim 1 , wherein the punched portion is configured such that a hook is engageable in the punched portion to convey the longitudinally extending strip along the slot.

4 . The slot wedge as claimed in claim 2 , wherein the punched portion is configured such that a hook is engageable in the punched portion to convey the longitudinally extending strip along the slot.

5 . The slot wedge as claimed in claim 1 , wherein the punched portion is arranged and formed as two parallel lines at right angles to the longitudinal axis of the longitudinally extending strip.

6 . The slot wedge as claimed in claim 2 , wherein the punched portion is arranged and formed as two parallel lines at right angles to the longitudinal axis of the longitudinally extending strip.

7 . The slot wedge as claimed in claim 4 , wherein the punched portion is arranged and formed as two parallel lines at right angles to the longitudinal axis of the longitudinally extending strip.

8 . The slot wedge as claimed in claim 1 , wherein the punched portion has a U-shaped configuration.

9 . A tool for installing a winding in a slot and a slot wedge closing off the slot, the tool comprising:

a slot template which is configured on a top side to receive the winding to be installed and is configured on a bottom side via a receiving surface to receive the slot wedge;

wherein the slot wedge is formed as a longitudinally extending strip made from insulating material in which a punched portion is arranged;

wherein the receiving surface includes a cut-out and the punched portion is arranged above the cut-out such that a hook arranged on the bottom side immerses into the punched portion and provides an engagement for transporting the slot wedge along the slot; and

wherein the slot is simultaneously closed off by the slot wedge when introducing the winding.

10 . The tool as claimed in claim 9 , wherein the receiving surface of the slot template includes a bevel in a region of the cut-out; and wherein the hook is arranged on a carriage which includes a counter bevel.

11 . A method for simultaneously installing a winding in a slot and a slot wedge closing off the slot, the method comprising:

arranging a winding to be installed on a top side of a slot template via the slot template and arranging the slot wedge on a bottom side of the slot template on a receiving surface via the slot template, the slot wedge being formed as a longitudinally extending strip made from insulating material;

arranging a punched portion in the longitudinally extending strip made from the insulating material;

wherein the receiving surface includes a cut-out, and the punched portion is arranged above the cut-out such that a hook arranged on the bottom side immerses into the punched portion with a forward movement to provide an engagement for transporting the slot wedge along the slot; and

wherein the slot is closed off by simultaneously transporting the slot wedge when introducing the winding in the slot.

12 . The method as claimed in claim 11 , wherein after introducing the slot wedge, the punched portion is then closed off again by impregnation with an impregnator of the winding in the slot.

Assignments (4)

Priority Claims (1)

Continuity (1)

References Cited (13)