Method of manufacturing armature of motor using hoop member
First Claim
1. A method for manufacturing a motor armature, comprising the steps of:
- a first step of creating a plurality of pole pieces each comprising a coil wound around a wire piece formed of a magnetic material;
a second step of fixing a first end of each of the plurality of pole pieces created in the first step to a first surface of a hoop member formed of a magnetic material such that the pole pieces are spaced by equal intervals by welding;
a third step of creating a cylinder attached to the pole pieces by curling up the hoop member to which the plurality of pole pieces are fixed in the second step into the cylinder so that the plurality of pole pieces are fixed to the cylinder such that the cylinder is an inner cylinder of the motor armature; and
a fourth step of forming an outer cylinder simultaneously with formation of the inner cylinder by attaching a second end of each of the pole pieces to a second hoop member by welding and curling up the second hoop member into the outer cylinder simultaneously with the step of curling up the hoop member forming the inner cylinder.
3 Assignments
0 Petitions
Accused Products
Abstract
A motor armature having a simplified assembly comprises an inner cylinder and an outer cylinder arranged coaxially, and a plurality of pole pieces provided radially at equal intervals between the inner and outer cylinders. The inner cylinder is formed into a cylindrical shape by curling up in the longitudinal direction a first hoop member (band steel) formed of a magnetic material and having a predetermined thickness and length. The outer cylinder is formed of a second hoop member similar to the first hoop member. The pole pieces each comprise a wire piece cut from a wire formed of a magnetic material and having a coil would thereon. One end of each pole piece is welded to one of the hoop members and the other end of the pole pieces is welded to the other hoop member.
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Citations
34 Claims
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1. A method for manufacturing a motor armature, comprising the steps of:
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a first step of creating a plurality of pole pieces each comprising a coil wound around a wire piece formed of a magnetic material; a second step of fixing a first end of each of the plurality of pole pieces created in the first step to a first surface of a hoop member formed of a magnetic material such that the pole pieces are spaced by equal intervals by welding; a third step of creating a cylinder attached to the pole pieces by curling up the hoop member to which the plurality of pole pieces are fixed in the second step into the cylinder so that the plurality of pole pieces are fixed to the cylinder such that the cylinder is an inner cylinder of the motor armature; and a fourth step of forming an outer cylinder simultaneously with formation of the inner cylinder by attaching a second end of each of the pole pieces to a second hoop member by welding and curling up the second hoop member into the outer cylinder simultaneously with the step of curling up the hoop member forming the inner cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for manufacturing a motor armature, comprising the steps of:
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a first step of creating a plurality of pole pieces each comprising a coil wound around a wire piece formed of a magnetic material; a second step of fixing a first end of each of the plurality of pole pieces created in the first step to an outer peripheral surface of a cylinder formed by curling up a hoop member formed of a magnetic material radially at equal intervals such that the cylinder is an inner cylinder of the motor armature; and forming an outer cylinder coaxial with the inner cylinder attached to the pole pieces by fixing a second end of each of the plurality of pole pieces to the outer cylinder after creating the inner cylinder attached to the first end of each of the pole pieces by curling up the hoop member so that the plurality of pole pieces are fixed to the outer peripheral surface of the hoop member in the second step. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for manufacturing a motor armature comprising the steps of:
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forming a plurality of pole pieces by winding a coil around a magnetic wire piece; attaching a first end of each of the pole pieces to a first surface of a hoop member formed of a magnetic material; curling the hoop member having the pole pieces attached thereto into a cylinder so that the pole pieces are fixed to the outside of the cylinder so that the cylinder is an inner cylinder; and attaching an outer cylinder to a second end of the pole pieces. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification