Claw rotor provided with an excitation winding insulator, and rotary electrical machine equipped with the claw rotor
AssigneeValeo Equipements Electriques Moteur
InventorsHenri Delianne, David Margueritte
Life of this patent
Estimating the term…
Abstract
A claw rotor (2) provided with an insulator (11) for a field coil (10) and a rotary electric machine equipped with such a rotor, the insulator comprising a plurality of projecting petals (121, 131) intended to engage with the inner inclined periphery of a claw (9). Each of the petals (121, 131) includes: a base (122, 132) solidly connected to an associated cheek (120, 130), side edges (123, 133), and an end (124, 134). The claw-pole rotor (2) is wherein each petal (121, 131) has a thickness (e) at the side edges (123, 133) which increases from the base (122, 132) to the end (124, 134).
Claims17
A claw rotor (202) for an electrical rotary machine having an axis of axial symmetry (X-X), comprising:
- two magnet wheels (7, 8) each comprising claws (9) and a flange supporting projections (19) extended by the claws (9) with axial orientation facing towards the flange of the other magnet wheel (8, 7);
- a core interposed between the flanges of the magnet wheels (7, 8);
- and
- an insulator (211) of an excitation winding (10) fitted on the core;
- the insulator (211) comprising a hub (110) fitted on the core, and a cheek (130, 120) at each of the ends of the hub (110),
- each cheek (120, 130) supporting a plurality of projecting petals (221, 231) which cooperate with the inclined inner periphery of the claw (9),
- each of the petals (221, 231) having a base (122, 132) which is integral with the cheek (120, 130), lateral edges (223, 233) and a free end (224, 234),
- each petal (221, 231) of the claw rotor (202) having a thickness (e) at the lateral edges (223, 233) which increases continuously from the base (122, 132) to the free end (224, 234).
A claw rotor (202) for an electrical rotary machine, comprising:
- an axis of axial symmetry (X-X);
- two magnet wheels (7, 8) each comprising claws (9) and a flange supporting projections (19) extended by the claws (9) with axial orientation facing towards the flange of the other magnet wheel (8, 7);
- a core interposed between the flanges of the magnet wheels (7, 8);
- and
- an insulator (211) of an excitation winding (10) fitted on the core;
- the insulator (211) comprising a hub (110) fitted on the core, and a cheek (130, 120) at each of the ends of the hub (110),
- each cheek (120, 130) supporting a plurality of projecting petals (221, 231) which cooperate with the inclined inner periphery of the claw (9),
- each of the petals (221, 231) having a base (122, 132) which is integral with the cheek (120, 130), lateral edges (223, 233) and a free end (224, 234),
- each petal (221, 231) of the claw rotor (202) having a thickness (e) at the lateral edges (223, 233) which increases from the base (122, 132) to the free end (224, 234),
- the thickness (e) of each of the petals (221, 231) increases from the base (122, 132) to the free end (224, 234) at any radial cross-section of the petal (221, 231).
A claw rotor (202) for an electrical rotary machine, comprising:
- an axis of axial symmetry (X-X);
- two magnet wheels (7, 8) each comprising claws (9) and a flange supporting projections (19) extended by the claws (9) with axial orientation facing towards the flange of the other magnet wheel (8, 7);
- a core interposed between the flanges of the magnet wheels (7, 8);
- and
- an insulator (211) of an excitation winding (10) fitted on the core;
- the insulator (211) comprising a hub (110) fitted on the core, and a cheek (130, 120) at each of the ends of the hub (110),
- each cheek (120, 130) supporting a plurality of projecting petals (221, 231) which cooperate with the inclined inner periphery of the claw (9),
- each of the petals (221, 231) having a base (122, 132) which is integral with the cheek (120, 130), lateral edges (223, 233) and a free end (224, 234),
- each petal (221, 231) of the claw rotor (202) having a thickness (e) at the lateral edges (223, 233) which increases from the base (122, 132) to the free end (224, 234),
- the thickness (e) of each of the petals (221, 231) increases from the base (122, 132) to the free end (224, 234) at any radial cross-section of the petal (221, 231);
- the increase in the thickness (e) between the base (122, 132) and the free end (224, 234) of each of the petals (221, 231) is between 10% and 50% of the thickness (e′) of the cheek (120, 130).
Dependencies are inferred from the claim text.