Method and device for attaching an electrical wire winding to a commutator
First Claim
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1. A method of producing an electric motor with a commutator, wherein the commutator comprises at least one commutator hook for mounting at least one electric wire winding, the method comprising:
- arranging a solder between the at least one commutator hook and the at least one wire winding;
pressing a pair of electrodes that are arranged adjacent to each other and angled to each other against the at least one commutator hook;
passing an electric current through the at least one commutator hook via the pair of the electrodes to melt the solder and form a connection to the wire winding;
pressing a free shank of the at least one commutator hook about a bending area formed at a mating surface against the mating surface with the pair of the electrodes, wherein the at least one wire winding is positioned between the free shank and the mating surface; and
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mechanically pressing the free shank with the pair of the electrodes in a direction of the mating surface prior to passing the electric current through the at least one commutator hook.
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Abstract
The invention relates to a method and device for producing an electric machine, an electric machine with a commutator, having commutator hooks for fixing electric wire windings with solder arranged between the commutator hooks and the wire winding and two electrodes arranged adjacent to each other which are pressed against the commutator hooks. An electric current is passed through the commutator hooks by means of electrodes such that the solder melts and forms a connection to the wire winding.
27 Citations
15 Claims
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1. A method of producing an electric motor with a commutator, wherein the commutator comprises at least one commutator hook for mounting at least one electric wire winding, the method comprising:
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arranging a solder between the at least one commutator hook and the at least one wire winding; pressing a pair of electrodes that are arranged adjacent to each other and angled to each other against the at least one commutator hook; passing an electric current through the at least one commutator hook via the pair of the electrodes to melt the solder and form a connection to the wire winding; pressing a free shank of the at least one commutator hook about a bending area formed at a mating surface against the mating surface with the pair of the electrodes, wherein the at least one wire winding is positioned between the free shank and the mating surface; and
;mechanically pressing the free shank with the pair of the electrodes in a direction of the mating surface prior to passing the electric current through the at least one commutator hook. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15)
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9. A device for connecting a wire winding with a commutator hook of a commutator, the device comprising:
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a solder that is arranged between the commutator hook and the wire winding; and a pair of electrodes that are arranged adjacent to each other and angled to each other and are pressed against the commutator hook, wherein the pair of the electrodes are pressed independently with a small distance between each other against a shank of the commutator hook, and wherein an electric current is passed through the commutator hook via the pair of the electrodes to melt the solder and form a connection to the wire winding.
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10. An electric motor comprising:
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a commutator connected with at least one wire winding by at least one commutator hook ; wherein a solder that connects the wire winding with the commutator hook is arranged between the wire winding and the at least one commutator hook and a mating surface; and wherein the at least one commutator hook is formed compactly around the wire winding by a pair of electrodes that are arranged adjacent to each other and angled to each other and are pressed against the commutator hook. - View Dependent Claims (11, 12, 13, 14)
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Specification