Interlocking segmented coil array
First Claim
1. A segmented coil array for use in rotary electromotive devices with one or two magnet rotors, such as motors and generators, of the type which employ an axial gap magnetic structure, composed of an even multiple of individual wire-wound coils, each coil having substantially the same structure and size and comprising circumferentially extending base portions and radially extending side portions, the radially extending side portions and circumferentially extending base portions joined at their respective ends to define a generally trapezoidal shape:
- the coil array formed into a ring of partially overlapped alternating coils such that the radially extending side portions of each coil are coplanar.
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0 Petitions
Accused Products
Abstract
Disclosed is a Segmented Coil Array ("SCA") for use in rotary electromotive devices, such as motors and generators, which employ multiple coils operating within an axial gap magnetic structure. Individual conductor coils have offset circumferentially extending portions so as to allow interlocking of adjacent coils radially extending portions to form a circular array in which all of the coils'"'"' working conductors, which are those in the axial magnetic field, can be oriented in the same plane. This construction allows minimum magnet gap spacing, thus, maximizing the available magnetic flux. The resulting SCA may easily be commuted as a three-phase motor, actuator, or generator. The invention also provides a structure whereby multiple coil arrays and associated magnetic rotors may be alternately stacked in layers so as to further increase the total coil working area within a motor or generator of a given diameter.
200 Citations
20 Claims
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1. A segmented coil array for use in rotary electromotive devices with one or two magnet rotors, such as motors and generators, of the type which employ an axial gap magnetic structure, composed of an even multiple of individual wire-wound coils, each coil having substantially the same structure and size and comprising circumferentially extending base portions and radially extending side portions, the radially extending side portions and circumferentially extending base portions joined at their respective ends to define a generally trapezoidal shape:
- the coil array formed into a ring of partially overlapped alternating coils such that the radially extending side portions of each coil are coplanar.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A segmented coil array for use in rotary electromotive devices, such as motors and generators, of the type which employ an axial gap magnetic structure, comprising an even multiple of identically shaped individual wire-wound coils, each coil comprising circumferentially extending base portions, and radially extending side portions joined at their respective ends to form a trapezoid shape, each side portion having offsetting bends at each end of said side portion adjacent to each base portion so that said base portions lie in a plane parallel to said side portions;
- the coil array formed by arranging a first set of coils into a ring with side portions being adjacent, and overlapping a second set of coils such that the radially extending side portions of each set of coils are all coplanar and the offsetting bends of alternate coils are oriented in different directions so that the base portion of the first set of coils are parallel to the base portions of the second set of coils.
- View Dependent Claims (16, 17, 18, 19, 20)
Specification