Patent ID: 8253297

Claim:
A winding body for an electronically commutating electric motor ( 200 ) comprising an air-gap winding wherein at least two coils ( 12 , 14 ; 22 , 24 ; 32 , 34 ) per winding phase ( 10 , 20 , 30 ) are provided, wherein the at least two coils ( 12 , 14 ; 22 , 24 ; 32 , 34 ) of a winding phase ( 10 ; 20 ; 30 ) of the winding body ( 100 ) are wound directly one coil after the other coil, wherein the winding of the winding body is a continuous series connection, wherein the at least two coils ( 12 , 14 ; 22 , 24 ; 32 , 34 ) per winding phase ( 10 , 20 , 30 ) are wound on a coil former which is removed after winding of the winding body ( 100 ) has been completed, wherein the entire winding of the winding body ( 100 ) is manufactured using a single litz wire which remains continuous when it transitions from the at least two coils ( 12 , 14 ; 22 , 24 ; 32 , 34 ) of one winding phase ( 10 ; 20 ; 30 ) to the next at least two coils ( 12 , 14 ; 22 , 24 ; 32 , 34 ) of the next winding phase ( 10 ; 20 ; 30 ), the litz wire being covered with a thermosetting varnish, wherein a winding overhang ( 106 , 108 ) of the winding body ( 100 ) is folded on one axial end radially inwardly and on one axial end radially outwardly to form a pot-shaped winding body ( 100 ), wherein the winding body ( 100 ) is baked into a solid mass forming a self-supporting winding body ( 100 ); and wherein cutting the litz wire for creating the phase connections for the motor is not done until after winding of the winding body ( 100 ) is completed.