Stator and method for producing a stator
AssigneeSchaeffler Technologies AG & Co. KG
InventorValentin Lehner
Life of this patent
Estimating the term…
Abstract
A stator and a method for producing a stator are provided. For this purpose, a connection element is used which includes multiple busbars and a star bar. The connection element has multiple contact points for the busbars and multiple contact points of the star bar. The connection element surrounds the winding ends of the winding head. The winding ends are bent relative to the contact points of the connection element and contact the contact points electrically, by a bending ridge which is positioned on the connection element.
Claims13
A stator for an electric motor, the stator comprising:
- a winding head of a stator winding having a plurality of winding ends;
- a connection element having multiple busbars and a star bar, from which multiple contact points of the busbars and multiple contact points of the star bar point in an axial direction of the stator, the connection element surrounds the winding ends of the winding head;
- the winding ends are bent relative to the contact points of the busbars or to the contact points of the star bar of the connection element and contact at least one of the contact points of the busbars or the contact points of the star bar electrically, by a bending ridge positioned on the connection element;
- and
- an attachment that sits on the bending ridge and comprises an insulation material to provide electrical insulation of the winding ends electrically connected to the contact points of the busbars.
A method for producing a stator for an electric motor, comprising the steps of:
- placing and positioning a connection element, which comprises multiple busbars and a star bar, from which multiple contact points of the busbars and multiple contact points of the star bar protrude in an axial direction of the stator, on the stator such that the connection element surrounds a plurality of winding ends at a winding head of a stator winding of the stator;
- positioning a bending ridge on the connection element;
- bending the winding ends relative to the bending ridge and contacting the contact points of the busbars and the contact points of the star bar of the connection element electrically;
- and
- placing an attachment on the bending ridge, into which an insulation material is introduced so that electrical insulation between the contact points and the contact points and the electrically connected winding ends is achieved.
A stator for an electric motor, the stator comprising:
- a winding head of a stator winding having a plurality of winding ends;
- a connection element having multiple busbars and a star bar, from which multiple contact points of the busbars and multiple contact points of the star bar point in an axial direction of the stator, the connection element surrounds the winding ends of the winding head;
- the winding ends are bent relative to the contact points of the busbars and the contact points of the star bar of the connection element and electrically contact the contact points of the busbars and the contact points of the star bar, by a bending ridge positioned on the connection element;
- and
- at least one pair of centering pins formed on the connection element, which engage in recesses correspondingly formed on the bending ridge, and fixes the bending ridge on the connection element.
Dependencies are inferred from the claim text.