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US 9,312,734 B2Granted
Armature of linear motor, linear motor and method of manufacturing armature
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsYasuaki Kamiki, Seigou Nagamatsu
Life of this patent
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Abstract
An armature of a linear motor is provided. The armature includes an armature core having a plurality of teeth arranged linearly and spaced at predetermined intervals, and a plurality of bobbins fitted onto adjacent teeth, each of the bobbins having flange parts, a winding being wound around the bobbin to form a coil. At least one of the flange parts of the bobbin is formed with a first protrusion and a second protrusion. An overlapped section is formed by the first and second protrusions of two adjacent bobbins contacting or overlapping with each other.
Claims20
An armature of a linear motor, comprising:
- an armature core having a plurality of teeth arranged linearly and spaced at predetermined intervals;
- and
- a plurality of bobbins fitted onto adjacent teeth, each of the bobbins having flange parts, a winding being wound around the bobbin to form a coil,
- wherein at least one of the flange parts of the bobbin is formed with a first protrusion and a second protrusion,
- wherein an overlapped section is formed by the first and second protrusions of two adjacent bobbins contacting or overlapping with each other along adjacent sides of respective flange parts of the two adjacent bobbins, and
- wherein a gap is provided that extends over an entirety of side edge surfaces that extend over an entirety of the adjacent sides of the respective flange parts of the two adjacent bobbins.
3 more elements
A linear motor, comprising:
- an armature;
- and
- a magnetic field source comprised of an array of magnets and arranged opposed to the armature,
- wherein the armature includes:
- an armature core having a plurality of teeth arranged linearly and spaced at predetermined intervals;
- and
- a plurality of bobbins fitted onto adjacent teeth, each of the bobbins having flange parts, a winding being wound around the bobbin to form a coil,
- wherein at least one of the flange parts of the bobbin is formed with a first protrusion and a second protrusion,
- wherein an overlapped section is formed by the first and second protrusions of two adjacent bobbins contacting or overlapping with each other along adjacent sides of respective flange parts of the two adjacent bobbins, and
- wherein a gap is provided that extends over an entirety of side edge surfaces that extend over an entirety of the adjacent sides of the respective flange parts of the two adjacent bobbins.
7 more elements
A method of manufacturing an armature, comprising:
- creating a coil unit by serially coupling a plurality of bobbins via coupling portions, each of the bobbins having flange parts and a winding being wound around the bobbin to form a coil;
- and
- fitting the plurality of coupled bobbins of the coil unit onto teeth of an armature core,
- wherein at least one of the flange parts of the bobbin is formed with a first protrusion and a second protrusion,
- wherein an overlapped section is formed by the first and second protrusions of two adjacent bobbins contacting or overlapping with each other along adjacent sides of respective flange parts of the two adjacent bobbins, and each overlapped section being formed with the coupling portion, and
- wherein a gap is provided that extends over an entirety of side edge surfaces that extend over an entirety of the adjacent sides of the respective flange parts of the two adjacent bobbins.
3 more elements
An armature of a linear motor, comprising:
- an armature core having a plurality of teeth arranged linearly and spaced at predetermined intervals and
- a plurality of bobbins fitted onto adjacent teeth, each of the bobbins having flange parts, a winding being wound around the bobbin to form a coil,
- wherein at least one of the flange parts of the bobbin is formed with a first protrusion and a second protrusion,
- wherein an overlapped section is formed by the first and second protrusions of two adjacent bobbins contacting or overlapping with each other along adj acent sides of respective flange parts of the two adjacent bobbins,
- wherein a gap is provided that extends over an entirety of side edge surfaces on the adjacent sides of the respective flange parts of the two adjacent bobbins, and
- wherein the armature core has a yoke, each of the plurality of teeth extending from the yoke in a first direction, and the first and second protrusions overlap each other in a direction parallel to the first direction.
3 more elements
An armature of a linear motor, comprising:
- an armature core having a plurality of teeth arranged linearly and spaced at predetermined intervals;
- and
- a plurality of bobbins fitted onto adj acent teeth, each of the bobbins having flange parts, a winding being wound around the bobbin to form a coil,
- wherein at least one of the flange parts of the bobbin is formed with a first protrusion and a second protrusion,
- wherein an overlapped section is formed by the first and second protrusions of two adjacent bobbins contacting or overlapping with each other along adj acent sides of respective flange parts of the two adjacent bobbins,
- wherein a gap is provided that extends over an entirety of side edge surfaces on the adjacent sides of the respective flange parts of the two adj acent bobbins, and
- wherein a first flange part of the flange parts of each bobbin is formed with the first protrusion and the second protrusion, a second flange part of the flange parts of each bobbin is not formed with the first protrusion and the second protrusion, and wherein second flange parts of the adjacent bobbins have facing sides that are in direct contact with each other.
4 more elements
Dependencies are inferred from the claim text.