Field apparatus for a rotary electric machine and field coil used for the field apparatus
AssigneeDenso Corporation
InventorYamato Utsunomiya
Life of this patent
Estimating the term…
Abstract
A field apparatus has a tubular yoke and a field coil formed in a tubular shape and disposed on and fixed to an inner surface of the yoke. The field coil has a plurality of coil units disposed in parallel to each other along a circumferential direction of the yoke. The field coil further has a connecting conductor connecting free terminals of coil conductors of each pair of coil units to form a current path in the field coil. Each connecting conductor is curved along the circumferential direction of the yoke by bending the connecting conductor, and stiffness of the connecting conductor is lower than that of the coil conductor.
Claims12
A field apparatus for a rotary electric machine, comprising:
- a tubular yoke;
- and
- a field coil formed in a tubular shape and disposed on and fixed to an inner surface of the yoke,
- the field coil having
- a plurality of coil units disposed in parallel to each other along a circumferential direction of the yoke, each of the coil units being made of a coil conductor;
- and
- a connecting conductor connecting free terminals of the coil conductors of each pair of coil units to form a current path in the field coil,
- wherein each connecting conductor is curved along the circumferential direction of the yoke by bending the connecting conductor, and stiffness of the connecting conductor is lower than that of the coil conductor.
A field coil for a field apparatus used for a rotary electric machine, comprising:
- a plurality of coil units, each of the coil units being made of a coil conductor wound up in a coil, the coil units being disposed in parallel to each other along a first direction, each coil unit being formed in a circular arc on a predetermined plane defined by the first direction and a second direction perpendicular to the first direction;
- and
- a connecting conductor through which two coil units in each pair are connected with each other,
- wherein each connecting conductor extends along the first direction and is bendable so as to form a combination of the coil units in a cylindrical shape, and stiffness of each connecting conductor is lower than that of the coil conductor.
Dependencies are inferred from the claim text.