Armature
First Claim
1. A method of connecting a winding to a segment of a commutator to form an armature for an electric rotary machine comprising the steps of:
- positioning end portions of first and second conductors of the winding against a contact surface of a connection portion of the segment to form a stack,engaging a connection member against the stack so that the end portions of the conductors are interposed between the connection member and the contact surface,engaging a support member with a support surface of the connection portion, so that energy can be applied via the connection member and the support member to secure the stack together, and whereby the stack is supported and the connection energies confined to the stack, anddisengaging the connection member and the support member from the stack after the stack is secured together.
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Accused Products
Abstract
A method for assembling a high current commutator and winding to form an armature includes positioning end portions of pairs of conductors against a connection portion of a segment on the commutator. A support member is engaged with the connection portion while a connection member, such as an electrode or sonotrode, applies energy to fuse together the stack formed by the connection portion and the conductor ends together. The connection member and the support member are then disengaged from the stack after the stack is fused together. The apparatus for assembling the armature includes connection member and the support member. The support member confines the securing energies to the stack thus allowing the commutator segments, connection portions and a core of the commutator to be made lighter.
8 Citations
15 Claims
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1. A method of connecting a winding to a segment of a commutator to form an armature for an electric rotary machine comprising the steps of:
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positioning end portions of first and second conductors of the winding against a contact surface of a connection portion of the segment to form a stack, engaging a connection member against the stack so that the end portions of the conductors are interposed between the connection member and the contact surface, engaging a support member with a support surface of the connection portion, so that energy can be applied via the connection member and the support member to secure the stack together, and whereby the stack is supported and the connection energies confined to the stack, and disengaging the connection member and the support member from the stack after the stack is secured together. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for connecting conductors of a winding to a segment of a commutator to form an armature wherein ends of a conductor are secured to a connection portion of the segment to form a stack, said apparatus comprising:
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a connection member engagable with one of the conductor ends to apply energy to the stack to fuse the stack together; and a support member adapted to temporarily engage a support surface of the connection portion to support the stack and to confine the energies applied to fuse the stack during a fusing operation and to be subsequently disengaged from the stack. - View Dependent Claims (9, 10, 11, 12)
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13. A commutator for use in making a high current armature comprising:
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a plurality of segments extending circumferentially around a core, each segment having a connection portion adapted to be fused with ends of two conductors of a winding to electrically and mechanically connect each segment with a corresponding pair of conductors, wherein each connection portion having a support surface engagable by a support member whereby the connection portion can be supported while it is fused with a conductor in a stack and allowing said support member to be subsequently separated from the fused stack. - View Dependent Claims (14, 15)
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Specification