A rotor blade set for an electric motor, having a plurality of axially assembled multi-part and/or single-part blades having circle segment shaped blade sections, between which radial and circumferentially open recesses are formed for receiving a respective magnet, wherein a predeterminable number o
A rotor blade set for an electric motor, having a plurality of axially assembled multi-part and/or single-part blades having circle segment shaped blade sections, between which radial and circumferentially open recesses are formed for receiving a respective magnet, wherein a predeterminable number of blade sections of the single-part or multi-part blades have at least one azimuthal clip on the circle radius, which clip bends axially during the insertion of the corresponding magnet into the respective recess, and wherein the circle segment-shaped blade sections of the single-part or multipart blades have at least one notch on the circle radius, in which notch a corresponding clip of a blade section of an axially spaced blade engages following the axial bending.
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1. A rotor blade set for an electric motor, the rotor blade set comprising: a plurality of axially assembled, multi-part and single-part blades having blade sections, including radial and circumferentially open recesses between each blade section, the recesses receiving a plurality of magnets-magnet
1. A rotor blade set for an electric motor, the rotor blade set comprising: a plurality of axially assembled, multi-part and single-part blades having blade sections, including radial and circumferentially open recesses between each blade section, the recesses receiving a plurality of magnets-magnet, wherein each blade section defines a circle sector of the rotor, and wherein at least one blade section of the multi-part blades is only connected to the plurality of magnets;at least one azimuthal clip provided on a circle radius side of a predefinable number of the blade sections of the single-part or multi-part blades, the azimuthal clip being axially bendable during a course of inserting a corresponding magnet into a particular recess; andat least one notch formed on the circle radius side of each blade section of the single-part or multi-part blades, with which a corresponding clip of a blade section of an axially spaced blade engages following the axial bending. 2. The rotor blade set according to claim 1, wherein the axially bendable clip of each blade section is formed by two notches introduced therein on the circle radius side and on both sides of the clip. 3. The rotor blade set according to claim 1, wherein the single-part blades have a central blade section forming a material recess for the passage of a shaft, on which the blade sections are molded via blade webs. 4. The rotor blade set according to claim 1, wherein the multi-part blades have a central blade section forming a material recess for the passage of a shaft, on which at least one or every second blade section is molded via a blade web. 5. The rotor blade set according to claim 1, wherein adjacent blade sections of at least one blade section pair or two blade section pairs, preferably an even-numbered multiple of two blade section pairs, of the multi-part blades each have one clip, which are positioned opposite, in particular diametrically opposed to, each other within the corresponding recesses. 6. The rotor blade set according to claim 5, wherein the clips of the blade sections are positioned, radially offset, adjacent to each other. 7. The rotor blade set according to claim 1, wherein a predefinable number of blade sections of the multi-part blades have at least one radial clamping clip or exactly two radial clamping clips disposed diametrically opposed to each other on a central blade section for fixing the magnets by clamping. 8. The rotor blade set according to claim 1, wherein the rotor blades, in particular the rotor blades provided with clips, are stacked, rotated with respect to each other around a circle segment angle. 9. The rotor blade set according to claim 1, wherein a shape of the notch, or the design of the clip, with machining allowance with respect to a particular notch, such that, during the course of the axial bending of the clip, the clip engages with the notch, and is deformed at least partially or in sections, including the mutual deformation of the clip and the notch. 10. The rotor blade set according to claim 1, wherein a number of blades, including at least one clip and at least one notch along a circle radii of their blade sections, such that, as a result of blades stacked, offset from each other, around at least one circle segment angle, blade sections are alternately disposed axially above each other within receiving pockets for the magnets, which are formed by the aligned recesses of the blades. 11. The rotor blade set according to claim 1, wherein two clips disposed opposite each other, are assigned to each recess. 12. The rotor blade set according to claim 1, wherein the single-part blades are alternated with the multi-part blades. 13. The rotor blade set according to claim 12, wherein at least two blade sections are connected to a rotor core and at least one blade section is only operatively connected to the magnets, the magnets being operatively connected to the rotor core. 14. The rotor blade set according to claim 1, wherein each blade section fills a solid angle of a cylindrical motor core such that the sum of solid angles of all blade sections in a single blade is less than 360 degrees. 15. The rotor blade set for an electric motor, including a number of axially assembled single-part and/or multi-part blades having blade sections, the blade sections including at least one axially bendable clip and/or at least one corresponding notch on a circle radius side, wherein between the blade sections are formed radial recesses for receiving at least one magnet, the blades being stacked in at least three blade subsets, and wherein at least one blade section is connected to the rotor only via contact with a corresponding pair of magnets. 16. The rotor blade set according to claim 15, wherein a first and a third blade subset are assembled only from multi-part blades without clips, and wherein a second blade subset is provided axially between the first and third blade subsets assembled from multi-part blades having clips. 17. The rotor blade set according to claim 15, wherein at least one single-part blade is provided on a front side or on both sides of the blade subsets. 18. A rotor blade set for an electric motor, the rotor blade set comprising: a plurality of axially-assembled rotor blades, each rotor blade including at least one circumferential central blade section and a plurality of circumferentially-assembled blade segments, the blade segments forming radial and circumferentially open recesses between each blade segment, the recesses receiving a plurality of magnets,wherein at least one of the blade segments is monolithically connected to the at least one central blade section, wherein each blade section defines a circle sector of the rotor blade, and wherein at least one of the blade segments is only connected to the central blade section via two of the plurality of magnets;at least one azimuthal clip provided on a circle radius side of a predefinable number of the blade segments, the azimuthal clip being axially bendable during a course of inserting a corresponding magnet into a particular recess; andat least one notch formed on the circle radius side of each blade segment and engaging one of the plurality of magnets. 19. A rotor blade set for an electric motor, the rotor blade set comprising: a plurality of axially assembled, multi-part and/or single-part blades having circle-segment-shaped blade sections, between which radial and circumferentially open recesses are provided for receiving a magnet,at least one azimuthal clip provided on a circle radius side of a predefinable number of the circle segment-shaped blade sections of the single-part or multi-part blades, the azimuthal clip being axially bendable during a course of inserting a corresponding magnet into a particular recess; andat least one notch formed on the circle radius side of the circle segment-shaped blade sections of the single-part or multi-part blades, with which a corresponding clip of a blade section of an axially spaced blade engages following the axial bending, wherein a number of blades, including at least one clip and at least one notch along a circle radii of their circle segment-shaped blade sections, such that, as a result of blades stacked, offset from each other, around at least one circle segment angle, circle segment-shaped blade sections are alternately disposed axially above each other within receiving pockets for the magnets, which are formed by the aligned recesses of the blades.
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이 특허에 인용된 특허 (9)
Abel, Falko; Kalavsky, Michal; de Filippis, Pietro, Electric machine.
Saban Daniel M. ; Holich James J. ; Kingrey Harold C. ; Cook Michael A. ; Klug Peter J. ; Sirois Robert ; Chahar Vijay P., Motor with rotor and stator core paired interlocks.
Ionel, Dan M.; Dellinger, Stephen J.; Heideman, Robert J.; Lesak, Alan E., Rotor assembly for an electric machine including a vibration damping member and method of manufacturing same.
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