Granted Patent B2

US 12,418,208 · App. 18/326,072 · Granted Sep 16, 2025

Inventor: Christian Koenen (Stuttgart, DE)

Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT

H02K1/26H02K1/02H02K1/32

Abstract

Claims (16)

1. A displacement body for a rotor, wherein the displacement body is configured to be inserted into a slot between two respective rotor teeth, comprising:

a main part;

a head part adjoining the main part,

wherein the head part comprises a region flaring towards an outside of the displacement body; and

at least one cooling channel, which extends through the displacement body in a depth direction,

wherein the displacement body is configured as a layer stack, which, in the depth direction, comprises at least two adjoining layers.

2. The displacement body according to claim 1 , wherein the layer stack comprises a series of metallic layers that are insulated from one another.

3. The displacement body according to claim 2 , wherein the metallic material comprises a paramagnetic metal.

4. The displacement body according to claim 1 , further comprising at least one rib extending laterally outward from the main part of the displacement body.

5. The displacement body according to claim 4 , wherein, on each of two opposed sides of the displacement body, an identical number of ribs is arranged.

6. The displacement body according to claim 5 , wherein a length of the ribs decreases from an inner end of the main part to an outer end of the main part.

7. A rotor for an electric motor, wherein the rotor comprises a sheet package in which rotor teeth are formed and a rotor winding is arranged in grooves formed between the rotor teeth, and

wherein, in at least a number of the grooves, a respective displacement body according to claim 1 is inserted in an axial direction of the rotor.

8. An electric motor comprising:

a stator; and

the rotor according to claim 7 mounted in the stator.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (9)