JP2010166705A5

JP2010166705A5 -

Info

Publication number: JP2010166705A5
Application number: JP2009006842A
Authority: JP
Filing date: 2009-01-15
Publication date: 2012-02-16
Anticipated expiration: 2029-01-15

Description

上記問題を解決するため、請求項１に記載の発明は、複数のコイル列からなる電機子巻線と、前記電機子巻線を覆うように設けられたキャンと、前記電機子巻線と前記キャンの間に形成され、前記コイル列の表面を強制冷却するように冷媒を流す冷媒通路と、を備えたコアレスリニアモータ電機子において、前記電機子巻線を構成するコイル列とコイル列の間の表面および隙間部には、モールド樹脂を充填してあり、前記モールド樹脂は、前記キャンとの間に位置する隙間部に該モールド樹脂の表面から該キャンの内壁に向けて突出し且つ冷媒の流れ方向に向かって流路断面積を部分的に絞る流路絞り部となる突起を形成したことを特徴としている。
請求項２に記載の発明は、請求項１記載のコアレスリニアモータ電機子において、前記突起が平面視で前記電機子巻線の隣り合うコイル列とコイル列の間または該コイル列の隣接部に沿って形成され、前記冷媒通路が平面視でコイル列に沿って長い偏平な流路断面形状を有することを特徴としている。
請求項３に記載の発明は、請求項１または２に記載のコアレスリニアモータ電機子において、前記突起は、前記モールド樹脂と同一材料としたことを特徴としている。
請求項４に記載の発明は、請求項１または２に記載のコアレスリニアモータ電機子において、前記突起をモールド樹脂と一体成型したことを特徴としている。
請求項５に記載の発明は、請求項１〜４の何れか1項に記載のコアレスリニアモータ電機子において、前記突起は、前記キャンとの間に挟み込まれて保持されるゴム系弾性体を備え、前記ゴム系弾性体は、前記キャンに荷重が加わると圧縮変形して前記突起と前記キャンとの間の隙間を気密するシール部材であることを特徴としている。
請求項６に記載の発明は、請求項１〜５の何れか1項に記載の電機子と、前期電機子と磁気的空隙を介して配置されると共に交互に極性が異なる複数の永久磁石を配列した界磁磁極と、を備え、前記電機子と前記界磁磁極の何れか一方を固定子とし、他方を可動子として相対的に走行するようにしたコアレスリニアモータを特徴としている。 In order to solve the above-mentioned problem, the invention according to claim 1 includes an armature winding formed of a plurality of coil arrays, a can provided so as to cover the armature winding, the armature winding, and the In a coreless linear motor armature, which is formed between the cans and includes a refrigerant passage through which a refrigerant flows so as to forcibly cool the surface of the coil array, between the coil array and the coil array constituting the armature winding The mold resin is filled in the surface and the gap portion, and the mold resin protrudes from the mold resin surface toward the inner wall of the can in the gap portion located between the can and the flow of the refrigerant. It is characterized in that a projection serving as a flow path restricting portion that partially narrows the cross-sectional area of the flow path in the direction is formed.
According to a second aspect of the present invention, in the coreless linear motor armature according to the first aspect, the projections are located between adjacent coil groups of the armature winding in the plan view or in adjacent portions of the coil group. The refrigerant passage is characterized by having a flat channel cross-sectional shape that is long along the coil row in plan view.
According to a third aspect of the present invention, in the coreless linear motor armature according to the first or second aspect, the protrusion is made of the same material as the mold resin.
According to a fourth aspect of the present invention, in the coreless linear motor armature according to the first or second aspect, the protrusion is integrally formed with a mold resin.
According to a fifth aspect of the present invention, in the coreless linear motor armature according to any one of the first to fourth aspects, the protrusion is a rubber-based elastic body that is sandwiched and held between the can. The rubber-based elastic body is a sealing member that compressively deforms when a load is applied to the can and hermetically seals a gap between the protrusion and the can.
According to a sixth aspect of the present invention, there is provided the armature according to any one of the first to fifth aspects, a plurality of permanent magnets that are arranged via the magnetic gap and the previous armature and are alternately different in polarity. It is characterized by a coreless linear motor that includes an arrayed field magnetic pole, and that is relatively driven by using one of the armature and the field magnetic pole as a stator and the other as a mover.

Claims

An armature winding comprising a plurality of coil arrays;
A can provided to cover the armature winding;
A refrigerant passage formed between the armature winding and the can and flowing a refrigerant so as to forcibly cool the surface of the coil array;
In coreless linear motor armature with
The surface and the gap between the coil array and the coil array constituting the armature winding are filled with mold resin,
The mold resin protrudes from the surface of the mold resin toward the inner wall of the can in a gap located between the cans and partially restricts the flow path cross-sectional area in the refrigerant flow direction. A coreless linear motor armature, characterized in that a projection as a part is formed.

The projection is formed between adjacent coil rows of the armature winding in the plan view or along the adjacent portion of the coil row, and the coolant passage is a flat flow that is long along the coil row in the plan view. The coreless linear motor armature according to claim 1, wherein the coreless linear motor armature has a road cross-sectional shape.

The coreless linear motor armature according to claim 1, wherein the protrusion is made of the same material as the mold resin.

The coreless linear motor armature according to claim 1, wherein the protrusion is integrally formed with the mold resin.

The protrusion includes a rubber-based elastic body that is sandwiched and held between the can and the rubber-based elastic body is compressed and deformed when a load is applied to the can. The coreless linear motor armature according to any one of claims 1 to 4 , wherein the coreless linear motor armature is a seal member that hermetically seals the gap.

The armature according to any one of claims 1 to 5,
A magnetic field pole arranged with a plurality of permanent magnets alternately arranged in polarity with the previous armature and magnetic gaps,
A coreless linear motor that travels relatively with either one of the armature or the field magnetic pole as a stator and the other as a mover.