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US 2009/0015110 A1Published application
Armature, Motor and Compressor and Methods of Manufacturing the Same
AssigneeDaikin Industries, Ltd.
InventorYoshinari Asano
Life of this patent
Estimating the term…
Abstract
An armature including magnetic cores arranged on a surface of a plate, coils provided around the magnetic cores, and a magnetic material plate having a plurality of first magnetic members is characterized in that the magnetic material plate is attached to a surface on the opposite side to a surface where the magnetic cores and the plate come in contact, a gap is provided between each of the first magnetic members adjacent to each other, and the area of a surface where the first magnetic members come in contact with the magnetic cores is larger than the area of a surface where the magnetic cores come in contact with the first magnetic members.
Claims24
1-42. (canceled)
A method of manufacturing an armature, comprising the steps of:
- (a) arranging, with respect to a core including a magnetic material plate having a plurality of first magnetic members arranged circularly and a plurality of magnetic cores, one of said magnetic cores projecting on a surface of each one of said first magnetic members toward the opposite side to one direction, coils around said magnetic cores along said surface,
- said one of said first magnetic members having a surface on the opposite side to said one of said magnetic cores, whose area is larger than the area of a cross section of said one of said magnetic cores on the side of said one of said first magnetic members, and having a cavity with another one of said first magnetic members, wherein
- the outline of each of said cavities between said first magnetic members adjacent to each other in a circular direction extends from an inner circumference side to an outer circumference side of said magnetic material plate,
- said method further comprising the step of:
- (b) covering said magnetic cores with a plate from the opposite side to said one direction after said step (a), wherein
- said plate is a second magnetic material plate having a plurality of second magnetic members arranged circularly,
- each one of said second magnetic members has a cavity with another one of said second magnetic members, and
- the outline of said cavity between said second magnetic members adjacent to each other in a circular direction extends from an inner circumference side to an outer circumference side of said second magnetic material plate,
- said second magnetic members covering each of said magnetic cores in said step (b), said one of said second magnetic members having a surface on the opposite side to one of said magnetic cores on which said one of said second magnetic materials is arranged, whose area is larger than the area of a surface of said one of said magnetic cores on the side of said one of said second magnetic members.
6 more elements
A method of manufacturing an armature, comprising the step of:
- (a) arranging, with respect to a core including a magnetic material plate having a plurality of first magnetic members arranged circularly and a plurality of magnetic cores, one of said magnetic cores projecting on a surface of each one of said first magnetic members toward the opposite side to one direction, coils around said magnetic cores along said surface,
- said one of said first magnetic members having a surface on the opposite side to said one of said magnetic cores, whose area is larger than the area of a cross section of said one of said magnetic cores on the side of said one of said first magnetic members, and having a cavity with another one of said first magnetic members, wherein
- the outline of each of said cavities between said first magnetic members adjacent to each other in a circular direction extends from an inner circumference side to an outer circumference side of said magnetic material plate,
- said method further comprising the step of:
- (b) arranging a plate on the opposite side to said one direction of said magnetic cores to be rotatable about a rotation axis along said one direction.
2 more elements
An armature comprising:
- a magnetic material plate having a plurality of first magnetic members arranged circularly;
- a plurality of magnetic cores;
- and
- coils, wherein
- in each one of said first magnetic members, one of said magnetic cores projecting toward the opposite side to one direction on a surface of said one of said first magnetic members, which has a surface on the opposite side to one of said magnetic cores on which said one of said first magnetic materials is arranged, whose area is larger than the area of a cross section of said one of said magnetic cores on the side of said one of said first magnetic members, and has a cavity with another one of said first magnetic members,
- the outline of each of said cavities between said first magnetic members adjacent to each other in a circular direction extends from an inner circumference side to an outer circumference side of said magnetic material plate, and
- said coils are arranged around said magnetic cores along said surface,
- said armature further comprising
- a plate arranged to cover said magnetic cores from the opposite side to said one direction, wherein
- said plate is a second magnetic material plate having a plurality of second magnetic members arranged circularly,
- each one of said second magnetic members has a cavity with another one of said second magnetic members,
- the outline of said cavity between said second magnetic members adjacent to each other in a circular direction extends from an inner circumference side to an outer circumference side of said second magnetic material plate,
- said second magnetic material plate is arranged such that each of said magnetic cores is covered with said second magnetic members, and
- the area of a surface on the opposite side to one of said magnetic cores covered by said one of said second magnetic members is larger than the area of a surface of said one of said magnetic cores on the side of said one of said second magnetic members.
11 more elements
An armature comprising:
- a magnetic material plate having a plurality of first magnetic members arranged circularly;
- a plurality of magnetic cores;
- and
- coils, wherein
- each one of said first magnetic members has one of said magnetic cores projecting toward the opposite side to one direction on a surface of said one of said first magnetic members, has a surface on the opposite side to one of said magnetic cores on which said one of said first magnetic materials is arranged, whose area is larger than the area of a cross section of said one of said magnetic cores on the side of said one of said first magnetic members, and has a cavity with another one of said first magnetic members,
- the outline of each of said cavities between said first magnetic members adjacent to each other in a circular direction extends from an inner circumference side to an outer circumference side of said magnetic material plate, and
- said coils are arranged around said magnetic cores along said surface,
- said armature further comprising
- a plate arranged to be rotatable about a rotation axis along said one direction on the opposite side to said one direction of said magnetic cores.
6 more elements
Dependencies are inferred from the claim text.