Apparatus for injecting stator winding coil groups into a stator core
First Claim
1. Apparatus for injecting a plurality of coil groups into the magnetic core of a dynamoelectric machine, each coil group having one or more coils, the stator having a central bore and a plurality of teeth spaced around the bore with a slot between adjacent teeth extending radially outwardly from the bore, said injecting apparatus comprising a plurality of gap defining elongate blades arranged in a circular array, said blades configured to have the coil groups placed thereon such that portions of each of the coils are located in gaps between adjacent ones of the blades and segments of each of the coils extend across the interior of said circular array of blades, said apparatus further comprising a stripper assembly movable axially within said circular array of blades, said stripper assembly comprising a first stripper, said first stripper comprising a disk having an outer diameter less than an inner diameter of said circular array, a first surface of said first stripper configured to contact at least one segment of at least one coil which extends across an interior of said circular array of blades and to move at least the one coil axially along said blades without contacting the portions of the one coil in the gaps between said blades.
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Accused Products
Abstract
An apparatus for injecting a plurality of coil groups into a stator core of a dynamoelectric machine is described. The injection apparatus includes, in one embodiment, a stripper assembly including a first stripper. The first stripper includes an injection disk which, in one embodiment, is formed from nylon. A first surface of the injection disk is configured to contact a segment of at least one of the coils to move the coil axially along the blades of the injection apparatus without contacting portions of the coil in gaps between the blades.
44 Citations
50 Claims
- 1. Apparatus for injecting a plurality of coil groups into the magnetic core of a dynamoelectric machine, each coil group having one or more coils, the stator having a central bore and a plurality of teeth spaced around the bore with a slot between adjacent teeth extending radially outwardly from the bore, said injecting apparatus comprising a plurality of gap defining elongate blades arranged in a circular array, said blades configured to have the coil groups placed thereon such that portions of each of the coils are located in gaps between adjacent ones of the blades and segments of each of the coils extend across the interior of said circular array of blades, said apparatus further comprising a stripper assembly movable axially within said circular array of blades, said stripper assembly comprising a first stripper, said first stripper comprising a disk having an outer diameter less than an inner diameter of said circular array, a first surface of said first stripper configured to contact at least one segment of at least one coil which extends across an interior of said circular array of blades and to move at least the one coil axially along said blades without contacting the portions of the one coil in the gaps between said blades.
- 19. A stripper for injecting, from an injection device, a plurality of coil groups into a stator core of a dynamoelectric machine, each coil group having one or more coils, the injection device having a plurality of gap defining elongate blades arranged in a circular array having an inner diameter, the blades configured to have the coil groups placed thereon such that first portions of each of the coils are received in respective gaps between the blades and segments of each of the coils extend across an interior of the circular array of blades, said stripper comprising a disk having an outer diameter less than the inner diameter of said circular array, a first surface of said stripper configured to contact at least part of one segment of at least one coil which extends across the interior of the circular array of blades and to move at least the one coil axially along the blades without contacting the first portions of the one coil located in the gaps between the blades.
- 26. A stripper assembly for injecting, from an injection device, a plurality of coil groups into a stator core of a dynamoelectric machine, each coil group having one or more coils, the injection device having a plurality of gap defining elongate blades arranged in a circular array having an inner diameter, the blades configured to have the coil groups placed thereon such that portions of each of the coils are received in respective gaps between the blades and segments of each of the coils extend across an interior of the circular array of blades, said stripper assembly comprising a first stripper, said first stripper comprising a disk having an outer diameter less than the inner diameter of said circular array of blades, a first surface of said first stripper configured to contact a segment of at least one coil which extends across the interior of said circular array of said blades and to move the one coil axially along said blades without contacting the portions of the one coil in the gaps between said blades.
- 44. A stripper for injecting, from an injection device, a plurality of coil groups into a stator core of a dynamoelectric machine, each coil group having one or more coils, the injection device having a plurality of gap establishing elongate blades arranged in a circular array, the blades configured to have the coil groups placed thereon such that portions of each of the coils are received in gaps between the blades and segments of each of the coils extend across the interior of the circular array of blades, said stripper comprising an injection disk and a generally cylindrical portion, said disk having an outer diameter less than an inner diameter of the circular array, said stripper further comprising a wire pushing shoulder sized to be located entirely within the array of blades and a plurality of radially spaced fins, an axial length of said cylindrical portion being greater than the axial length of said fins.
Specification