Method for producing an electric motor, and apparatus
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorMartin Holzhey
Life of this patent
Estimating the term…
Abstract
A method for producing an electric motor having a coil includes providing a coil core where the coil core has a slot which extends in a longitudinal direction of the coil core. The method further includes introducing a slot insulation into the slot such that the slot insulation projects beyond the coil core in the longitudinal direction and forms a projection, introducing a conductor material layer by layer into the slot, and using a first layer of the conductor material to retain the slot insulation in a region of the projection during an introduction of a second layer of the conductor material into the slot.
Claims5
A method for producing an electric motor having a coil, comprising the steps of:
- providing a coil core, wherein the coil core has a slot which extends in a longitudinal direction of the coil core;
- introducing a slot insulation into the slot such that the slot insulation projects beyond the coil core in the longitudinal direction and forms a projection;
- retaining the slot insulation in the slot by circumferentially introducing a squeezing force to the projection during introducing of a first layer of a conductor material into the slot;
- pressing the first layer of the conductor material and the slot insulation together by a force in a region of the projection such that a force-fit between the first layer of the conductor material and the slot insulation in the region of the projection is produced which force-fit fixes the slot insulation in the longitudinal direction;
- and
- during the step of pressing the first layer of the conductor material and the slot insulation together by the force in the region of the projection such that the force-fit between the first layer of the conductor material and the slot insulation in the region of the projection is produced, introducing a second layer of the conductor material into the slot.
Dependencies are inferred from the claim text.