Apparatus for generating a layout for an additive manufacturing of an electric drive
An apparatus for generating a layout for an additive manufacturing of an electric drive for a disc rotor. The disc rotor is adapted for being driven by a magnetic field. The apparatus comprises an input module configured to receive one or more input parameters. The apparatus further comprises a generating module configured to generate, from the one or more input parameters, a layout of a plurality of coil structures, wherein the plurality of coil structures is adapted to generate the magnetic field by an electric current, and a layout of a control structure, wherein the control structure is adapted to connect the plurality of coil structures with a connector for a supply of the electric current, and to distribute the electric current to the plurality of coil structures in order to drive the disc rotor.
1 . An apparatus for generating a layout for an additive manufacturing of an electric drive for a disc rotor adapted for being driven by a magnetic field, the apparatus comprising an input module, configured to receive, from a user, one or more input parameters,
a generating module, configured to generate, from the one or more input parameters,
a layout of a plurality of coil structures, wherein the plurality of coil structures is adapted to generate the magnetic field by an electric current,
a layout of a control structure, wherein the control structure is adapted to connect the plurality of coil structures with a connector for a supply of the electric current, and to distribute the electric current to the plurality of coil structures in order to drive the disc rotor, and wherein each coil structure comprises as coil layers one or more concentric wire helices, and wherein the generating module is configured to generate each wire helix based on a projection of a circular helix onto a coil layer surface by means of a rotating projection line which is located parallel to the cross sections of the wire helices.
2 . The apparatus according to claim 1 , wherein the generating module is further configured to generate, based on the layout of the plurality of coil structures and on the layout of the control structure, instruction data for an additive manufacturing device.
3 . The apparatus according to claim 2 , wherein the additive manufacturing device is a multi-material jetting printer.
4 . The apparatus according to claim 1 , wherein the input parameters comprise one or more of the following:
a wire gauge or wire diameter,
a pitch or wire inclination,
a number of windings,
a radius or diameter of a cross section of a coil structure, or of a coil layer of a coil structure,
a distance between coil structures, or between two coil layers of different coil structures,
a number of coil layers of a coil structure,
a distance between coil layers of a coil structure.
5 . The apparatus according to claim 1 , wherein each wire helix has a cross section of a triangle with rounded corners.
6 . The apparatus of claim 5 , wherein for each coil structure the generating module is configured to generate a connection between respective ends of two consecutive concentric wire helices by means of a spline function.
7 . The apparatus according to claim 1 , wherein the plurality of coil structures is divided into pairs, and wherein the control structure comprises a wiring which links, for each pair, a first member of the pair to a second member of the pair and to the connector for the power supply.
8 . A method for generating a layout for an additive manufacturing of an electric drive for a disc rotor adapted for being driven by a magnetic field, the method comprising the steps:
providing one or more input parameters,
generating, from the one or more input parameters,
a layout of a plurality of coil structures, wherein the plurality of coil structures is adapted to generate the magnetic field by an electric current,
a layout of a control structure, wherein the control structure is adapted to connect the plurality of coil structures with a connector for a supply of the electric current, and to distribute the electric current to the plurality of coil structures in order to drive the disc rotor,
wherein the step of generating the layout of the plurality of coil structures comprises, for at least one coil structure:
generating a circular helix, wherein a pitch and/or a wire gauge and/or a number of revolutions is determined from the input parameters, generating a rotating projection line which is located parallel to a cross section of a coil layer,
projecting the circular helix onto a coil layer surface by means of the rotating projection line, and
generating a connection between respective ends of two consecutive coil layers by means of a spline function.
9 . The method according to claim 8 , wherein the coil layer has a triangular cross section with rounded corners.
10 . A machine-readable storage device, with software code stored, the software code being executable on a data processing system to cause the data processing system to perform operations that comprise:
providing one or more input parameters,
generating, from the one or more input parameters,
a layout of a plurality of coil structures, wherein the plurality of coil structures is adapted to generate the magnetic field by an electric current,
a layout of a control structure, wherein the control structure is adapted to connect the plurality of coil structures with a connector for a supply of the electric current, and to distribute the electric current to the plurality of coil structures in order to drive the disc rotor, and
wherein each coil structure comprises as coil layers one or more concentric wire helices, and each wire helix is generated based on a projection of a circular helix onto a coil layer surface by means of a rotating projection line which is located parallel to the cross sections of the wire helices.