Method for producing a stator

Patent metadata

Field	Value
Publication number	US-12155279-B2
Application number	US-201917259233-A
Country	US
Kind code	B2
Filing date	Jun 24, 2019
Priority date	Jul 12, 2018
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A method for producing a stator includes the steps of: providing a stator, which has one or more windings and a winding head, the winding head having one or more cable ends; positioning a phase connection assembly by way of a retaining element on the winding head, the phase connection assembly having at least one cable element; connecting the at least one cable element to a corresponding cable end of the winding head; and removing the retaining element.

First claim

What is claimed is:

1. A method for producing a stator, comprising:
providing a stator which comprises one or more windings and a winding head, wherein the winding head comprises one or more conductor ends;
positioning, via a retention element, a phase connection sub-assembly comprising at least one of a phase connection or a switching bridge on the winding head, wherein the phase connection sub-assembly comprises at least one conductor element;
connecting the at least one conductor element to a corresponding conductor end of the winding head;
removing the retention element;
wherein the at least one conductor element comprises:
a carrier structure having at least one recess which is configured for introducing at least one conductor end of the winding head of the stator; and
a securing structure arranged offset from the carrier structure,
wherein the securing structure comprises at least one positive-locking element which is configured for positive-locking and/or non-positive-locking securing of the retention element on the winding head and/or at least one conductor element on the retention element;
wherein the at least one positive-locking element is provided in the region of the at least one recess; and
wherein the retention element is constructed so as to be releasably secured to the winding head of the stator.

2. The method according to claim 1 , further comprising:
removing the retention element from the winding head in a destruction-free manner.

3. The method according to claim 1 , further comprising:
at least partially deforming or shaping the retention element for removal from the winding head.

4. The method according to claim 1 , further comprising:
securing the at least one conductor element in or on the retention element in a positive-locking and/or non-positive-locking manner.

5. The method according to claim 1 , wherein, when the at least one conductor element is connected to the corresponding conductor end, a connection location is formed, and
further comprising:
arranging and positioning or shaping the at least one conductor element and/or the conductor end such that the connection location faces away from the stator.

6. The method according to claim 1 , further comprising:
at least partially casting or coating the winding head after removal of the retention element.

7. A retention element for positioning a phase connection sub-assembly comprising at least one of a phase connection or a switching bridge on a winding head of a stator comprising one or more windings and the winding head, wherein the winding head comprises one or more conductor ends, and wherein the phase connection sub-assembly comprises at least one conductor element, comprising:
a carrier structure having at least one recess which is configured for introducing at least one conductor end of the winding head of the stator; and
a securing structure arranged offset from the carrier structure;
wherein the securing structure comprises at least one positive-locking element which is configured for positive-locking and/or non-positive-locking securing of the retention element on the winding head and/or at least one conductor element on the retention element;
wherein the at least one positive-locking element is provided in the region of the at least one recess; and
wherein the retention element is constructed so as to be releasably secured to the winding head of the stator.

8. The retention element according to claim 7 , further comprising:
at least one displaceable securing element.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Richter Jens

Classifications

• H02K15/26 Primary

  Applying fastening means on winding heads · CPC title

• H02K15/35 Primary

  Form-wound windings · CPC title

• H02K3/50

  Fastening of winding heads, equalising connectors, or connections thereto · CPC title

• H02K3/52

  Fastening salient pole windings or connections thereto · CPC title

• H02K15/0043 Primary

  Electricity · mapped topic