JP2003109815A - Insulating material for coil of electric apparatus - Google Patents
Insulating material for coil of electric apparatusInfo
- Publication number
- JP2003109815A JP2003109815A JP2001299926A JP2001299926A JP2003109815A JP 2003109815 A JP2003109815 A JP 2003109815A JP 2001299926 A JP2001299926 A JP 2001299926A JP 2001299926 A JP2001299926 A JP 2001299926A JP 2003109815 A JP2003109815 A JP 2003109815A
- Authority
- JP
- Japan
- Prior art keywords
- mica
- coil
- insulating sheet
- laminated
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電気機器のコイル
に用いられる絶縁材に関するものであり、特に電動機の
コアのスロット内に配置され、コアとコイル導線の間の
絶縁を行うスロットライナの構成に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating material used for a coil of an electric device, and more particularly, to a slot liner arranged in a slot of a core of an electric motor to insulate the core and a coil conductor. Regarding
【０００２】[0002]
【従来の技術】電気機器のコイルは、このコイルのコア
との間の絶縁を確保するために、これらの間に絶縁材を
設けている。電気機器に属する電動機や発電機などの回
転電機は、配列された複数の歯を有するコアを有し、こ
の歯と歯の間の空間、すなわちスロットにコイル導線を
納めて構成されている。コイル導線とコアとの間の絶縁
を確保するために、これらの間にスロットライナと呼ば
れるシート状の絶縁材が配置されている。2. Description of the Related Art A coil of an electric device is provided with an insulating material between them in order to ensure insulation between the coil and the core of the coil. A rotating electric machine such as an electric motor or a generator belonging to an electric device has a core having a plurality of arranged teeth, and a coil wire is housed in a space between the teeth, that is, a slot. In order to ensure insulation between the coil conductor and the core, a sheet-shaped insulating material called a slot liner is arranged between them.
【０００３】高温環境下で用いられる回転電機につい
て、前記絶縁材についても十分な耐熱性が必要となる。
このような絶縁材として、マイカを使用したものが知ら
れている。マイカを使用した絶縁材は、細かいフレーク
状のマイカを樹脂で固めた集成マイカと、雲母の石から
薄片を剥がして数枚を張り合わせた剥がしマイカがあ
る。In a rotary electric machine used in a high temperature environment, the insulating material also needs to have sufficient heat resistance.
As such an insulating material, one using mica is known. Insulating materials using mica include laminated mica obtained by hardening fine flake-shaped mica with resin, and peeled mica obtained by peeling flakes from mica stone and sticking several pieces together.
【０００４】[0004]
【発明が解決しようとする課題】前述の集成マイカを用
いた絶縁材は、マイカの細片をつないでいる樹脂の耐熱
性が十分でない場合がある。また、材料がもろいため、
製作時に孔が明いていたり、回転電機の使用による振動
などにより孔が明き絶縁破壊を起こす可能性がある。一
方、剥がしマイカを用いた絶縁材は、曲げに弱く、スロ
ット内に納めるときなどに折れて、絶縁破壊を起こす可
能性がある。また、高価である。In the case of the insulating material using the above-described mica laminated, the heat resistance of the resin connecting the mica strips may not be sufficient. Also, because the material is brittle,
There is a possibility that the holes may be open during the manufacturing, or the holes may be opened due to vibration caused by the use of the rotating electric machine, resulting in dielectric breakdown. On the other hand, the insulating material using peeled mica is weak against bending and may be broken when it is stored in the slot to cause dielectric breakdown. It is also expensive.
【０００５】本発明は、前述の問題点を考慮してなされ
たものであり、電気機器のコイルの絶縁材において、耐
熱性、強度などを向上させることを目的とする。The present invention has been made in consideration of the above problems, and an object thereof is to improve heat resistance, strength and the like of an insulating material for a coil of an electric device.
【０００６】[0006]
【課題を解決するための手段】前述の課題を解決するた
めに、本発明の、電気機器のコアとコイルの間に配置さ
れる絶縁材は、剥がしマイカを基材とする剥がしマイカ
絶縁シートと、集成マイカを基材とする集成マイカ絶縁
シートとが少なくとも１枚ずつ積層され、形成されてい
る。In order to solve the above-mentioned problems, the insulating material of the present invention, which is arranged between the core and the coil of an electric device, is a peeling mica insulating sheet having peeling mica as a base material. At least one laminated mica insulating sheet having mica as a base material is laminated and formed.
【０００７】剥がしマイカと集成マイカの絶縁シートの
それぞれの欠点を互いに補うようにして、絶縁性能が向
上される。Insulation performance is improved by compensating for the respective defects of the peeling mica and the laminated mica insulating sheet.
【０００８】また、本発明の他の態様として、回転電機
のコアのスロット内に配置され、前記スロット内に納め
られるコイル導線と、前記コアとを絶縁するスロットラ
イナについて、剥がしマイカを基材とする剥がしマイカ
絶縁シートと、集成マイカを基材とする集成マイカ絶縁
シートとが少なくとも１枚ずつ積層され、形成されるも
のとすることができる。As another aspect of the present invention, with respect to a slot liner for insulating the core from the coil conductor which is arranged in the slot of the core of the rotating electric machine and is housed in the slot, the peeling mica is used as a base material. At least one peelable mica insulating sheet and a laminated mica insulating sheet having mica as a base material may be laminated and formed.
【０００９】さらに、１枚の剥がしマイカ絶縁シートを
２枚の集成マイカ絶縁シートで挟むようにして積層する
こともできる。Further, it is possible to stack one peeled mica insulating sheet by sandwiching it between two laminated mica insulating sheets.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態（以下
実施形態という）を、図面に従って説明する。図１は、
電気機器の一例としての回転電機のステータの断面図で
ある。ステータのコア１０は、概ね円筒形を有し、その
内周、すなわちロータに対向する面には、周方向に所定
の間隔で歯１２が配列されている。歯１２の間の空間で
ある各スロット１４内にはコイルを形成する導線１６が
納められるように配置されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention (hereinafter referred to as embodiments) will be described below with reference to the drawings. Figure 1
It is a sectional view of a stator of a rotary electric machine as an example of electric equipment. The core 10 of the stator has a substantially cylindrical shape, and teeth 12 are arranged at predetermined intervals in the circumferential direction on the inner circumference, that is, the surface facing the rotor. Inside each slot 14, which is the space between the teeth 12, a conductor 16 forming a coil is arranged to be housed.
【００１１】図２は、一つのスロット１４を拡大して示
した図である。コイルの導線１６と、コア１０の間に
は、スロット内周に沿うように、絶縁材としてのスロッ
トライナ１８が配置されている。スロットライナ１８
は、３層から構成され、以降、内側から内層２０、中層
２２、外層２４と呼ぶ。内層２０および外層２４は、集
成マイカを基材とした集成マイカ絶縁シートからなり、
中層２２は、剥がしマイカを基材とした剥がしマイカ絶
縁シートからなる。なお、図２おいて、スロットライナ
１８は、その構成を明確に示すために、実際の寸法より
厚みを強調してして示している。スロット１４の開口部
分にはウエッジ２５が配置されている。FIG. 2 is an enlarged view of one slot 14. Between the conductor 16 of the coil and the core 10, a slot liner 18 as an insulating material is arranged along the inner circumference of the slot. Slot liner 18
Is composed of three layers, and is hereinafter referred to as an inner layer 20, a middle layer 22, and an outer layer 24 from the inside. The inner layer 20 and the outer layer 24 are composed of a laminated mica insulating sheet using mica as a base material,
The middle layer 22 is composed of a peeling mica insulating sheet using peeling mica as a base material. Note that, in FIG. 2, the slot liner 18 is shown by emphasizing the thickness thereof from the actual size in order to clearly show the configuration thereof. A wedge 25 is arranged at the opening portion of the slot 14.
【００１２】集成マイカ絶縁シートは、図３（ａ）に示
すようにフレーク状のマイカを樹脂によりつなぎ固めた
基材シート２６と、ガラス繊維を織ったガラスクロスシ
ート２８を積層して形成されている。また、図３（ｂ）
に示すように、前記の集成マイカを含む基材シート２６
を２枚のガラスクロスシートで挟持し、積層して形成さ
れるものとすることもできる。内層２０と外層２４に挟
持される中層２２は、剥がしマイカを基材とする剥がし
マイカ基材絶縁シートからなる。剥がしマイカ絶縁シー
トも、図３（ａ）または図３（ｂ）のように、剥がしマ
イカを含む基材シートとガラスクロスシートからなる２
層または３層の層構造を有している。As shown in FIG. 3 (a), the laminated mica insulating sheet is formed by laminating a base sheet 26 made by flake-shaped mica spliced with resin and solidified, and a glass cloth sheet 28 woven with glass fibers. There is. In addition, FIG.
As shown in FIG.
Can be sandwiched between two glass cloth sheets and laminated together. The middle layer 22 sandwiched between the inner layer 20 and the outer layer 24 is composed of a peeled mica-based insulating sheet having peeled mica as a base material. The peeling mica insulating sheet is also composed of a base sheet containing peeling mica and a glass cloth sheet, as shown in FIG. 3 (a) or FIG. 3 (b).
It has a layer structure of three layers or three layers.
【００１３】集成マイカ絶縁シートは、柔軟性があり、
工作性良好である。一方、耐電圧値が比較的低い。剥が
しマイカ絶縁シートは、耐電圧値は高い反面、曲げる際
に折れやすい。また、価格的には、剥がしマイカ絶縁シ
ートの方が高価である。本実施形態においては、剥がし
マイカ絶縁シートを、集成マイカ絶縁シート２枚で挟持
して、３層構造とすることにより、スロット内に、これ
をスロットライナとして挿入する際の工作性を向上させ
ている。すなわち、折れやすい剥がしマイカ絶縁シート
を比較的機械的強度の高い集成マイカ絶縁シートで挟ん
だことにより、これらの絶縁シートを曲げる際に、集成
マイカ絶縁シートが剥がしマイカ絶縁シートを支えるよ
うにして応力の集中を防止し、折れを防止する。また、
剥がしマイカ絶縁シートを３枚用いるよりも、２枚を集
成マイカ絶縁シートとすることで、安価となる。The laminated mica insulation sheet is flexible,
Good workability. On the other hand, the withstand voltage value is relatively low. Although the peeling mica insulating sheet has a high withstand voltage value, it is easily broken when it is bent. Further, in terms of price, the peeled mica insulating sheet is more expensive. In the present embodiment, the peeling mica insulating sheet is sandwiched between two laminated mica insulating sheets to form a three-layer structure, thereby improving workability when inserting the peeling mica insulating sheet into the slot as a slot liner. There is. That is, since the peelable mica insulating sheet that is easy to break is sandwiched between the laminated mica insulating sheets with relatively high mechanical strength, when bending these insulating sheets, the laminated mica insulating sheet supports the peeled mica insulating sheet to support the stress, and Prevents concentration and prevents breakage. Also,
It is cheaper to use two laminated mica insulating sheets than to use three peeling mica insulating sheets.
【００１４】このように、剥がしマイカ絶縁シートと集
成マイカ絶縁シートの双方の良好な特性を合わせ持つ絶
縁材、スロットライナを構成することができる。また、
集成マイカ絶縁シートは、ワニスの含浸性がよく、この
面からも絶縁性の向上が図れる。In this way, it is possible to construct an insulating material and a slot liner having good characteristics of both the peeled mica insulating sheet and the laminated mica insulating sheet. Also,
The laminated mica insulating sheet has a good varnish impregnation property, and the insulating property can be improved also from this aspect.
【００１５】本実施形態のスロットライナは、特に高温
環境下、例えば高温の流体を取り扱うキャンドモータポ
ンプの電動機のステータなどに用いることが好適である
が、他のコイルに関連する電気機器に用いることも可能
である。The slot liner of this embodiment is suitable for use in, for example, a stator of an electric motor of a canned motor pump that handles a high-temperature fluid, especially in a high-temperature environment, but is also used for electrical equipment related to other coils. Is also possible.
【図１】 電気機器の一例としての電動機のステータの
構成を示す図である。FIG. 1 is a diagram showing a configuration of a stator of an electric motor as an example of an electric device.
【図２】 スロット内でのスロットライナの配置を示す
図である。FIG. 2 is a view showing the arrangement of slot liners in slots.
【図３】 スロットライナを構成する絶縁シートの断面
構成の例を示す図である。FIG. 3 is a diagram showing an example of a cross-sectional configuration of an insulating sheet that constitutes a slot liner.
１０ コア、１２ 歯、１４ スロット、１６ 導線、
１８ スロットライナ、２０ 内層（集成マイカ絶縁シ
ート）、２２ 中層（剥がしマイカ絶縁シート）、２４
外層（集成マイカ絶縁シート）。10 cores, 12 teeth, 14 slots, 16 conductors,
18 slot liner, 20 inner layer (assembled mica insulation sheet), 22 middle layer (peeled mica insulation sheet), 24
Outer layer (assembled mica insulation sheet).
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小椋 彰 東京都東村山市野口町２丁目16番２号 日 機装株式会社東村山製作所内 (72)発明者 江口 真右 東京都東村山市野口町２丁目16番２号 日 機装株式会社東村山製作所内 Ｆターム(参考） 5H604 AA02 BB01 BB03 BB14 CC01 CC05 CC15 DA06 DA08 DA09 DB26 PB03 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Akira Ogura 2-16-2 Noguchi-cho, Higashimurayama-shi, Tokyo Sun Kiso Co., Ltd. Higashimurayama Works (72) Inventor Maguchi Eguchi 2-16-2 Noguchi-cho, Higashimurayama-shi, Tokyo Sun Kiso Co., Ltd. Higashimurayama Works F-term (reference) 5H604 AA02 BB01 BB03 BB14 CC01 CC05 CC15 DA06 DA08 DA09 DB26 PB03
Claims (4)
れ、これらを絶縁する絶縁材であって、 剥がしマイカを基材とする剥がしマイカ絶縁シートと、
集成マイカを基材とする集成マイカ絶縁シートとが少な
くとも１枚ずつ積層され、形成されている絶縁材。1. A peeling mica insulating sheet which is arranged between a core and a coil of an electric device and which insulates the core and the coil, and which has peeling mica as a base material.
An insulating material formed by laminating at least one laminated mica insulating sheet having a laminated mica as a base material.
れ、前記スロット内に納められるコイル導線と、前記コ
アとを絶縁するスロットライナであって、 剥がしマイカを基材とする剥がしマイカ絶縁シートと、
集成マイカを基材とする集成マイカ絶縁シートとが少な
くとも１枚ずつ積層され、形成されているスロットライ
ナ。2. A peeling mica insulating sheet having peeling mica as a base material, which is a slot liner arranged in a slot of a core of a rotating electric machine and insulating the core from a coil conductor wire housed in the slot. ,
A slot liner formed by laminating at least one laminated mica insulating sheet having laminated mica as a base material.
て、１枚の剥がしマイカ絶縁シートを２枚の集成マイカ
絶縁シートで挟んで積層されたスロットライナ。3. The slot liner according to claim 2, wherein one peeled mica insulating sheet is sandwiched between two laminated mica insulating sheets and laminated.
トライナを用いた回転電機。4. A rotating electric machine using the slot liner according to claim 1. Description:
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001299926A JP4173300B2 (en) | 2001-09-28 | 2001-09-28 | Electrical equipment coil insulation |
| US10/363,725 US7015396B2 (en) | 2001-09-28 | 2002-09-25 | Insulation material for electrical machines |
| EP08168747A EP2031734B1 (en) | 2001-09-28 | 2002-09-25 | Rotary electrical machine with a coil insulation member |
| EP02768065A EP1432100B1 (en) | 2001-09-28 | 2002-09-25 | Insulating member for electric machine coil and use thereof as a slot liner of rotating electric machine |
| KR1020047003097A KR100799234B1 (en) | 2001-09-28 | 2002-09-25 | Insulating material for coil of electric device and slot liner of rotating electric machine |
| CNB028161882A CN1302600C (en) | 2001-09-28 | 2002-09-25 | Insulation-material in the coils of an electrical machine and the slot-shaped pad of an electrical rotation machine |
| PCT/JP2002/009877 WO2003030334A1 (en) | 2001-09-28 | 2002-09-25 | Insulating material for electric device coil and slot liner of rotating electric machine |
| TW091122305A TW569251B (en) | 2001-09-28 | 2002-09-27 | Insulation-material in the coils of an electrical machine and the slot-shaped pad of an electrical rotation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001299926A JP4173300B2 (en) | 2001-09-28 | 2001-09-28 | Electrical equipment coil insulation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003109815A true JP2003109815A (en) | 2003-04-11 |
| JP2003109815A5 JP2003109815A5 (en) | 2006-08-03 |
| JP4173300B2 JP4173300B2 (en) | 2008-10-29 |
Family
ID=19120589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001299926A Expired - Lifetime JP4173300B2 (en) | 2001-09-28 | 2001-09-28 | Electrical equipment coil insulation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4173300B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7022254B1 (en) | 2021-11-25 | 2022-02-17 | 日機装株式会社 | Slot liner and rotary electric machine |
-
2001
- 2001-09-28 JP JP2001299926A patent/JP4173300B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7022254B1 (en) | 2021-11-25 | 2022-02-17 | 日機装株式会社 | Slot liner and rotary electric machine |
| TWI790182B (en) * | 2021-11-25 | 2023-01-11 | 日商日機裝股份有限公司 | Slot liner and rotating electrical machine |
| WO2023095367A1 (en) * | 2021-11-25 | 2023-06-01 | 日機装株式会社 | Slot liner and rotating electric machine |
| JP2023077809A (en) * | 2021-11-25 | 2023-06-06 | 日機装株式会社 | Slot liner and rotary electric machine |
| KR20240032180A (en) * | 2021-11-25 | 2024-03-08 | 니기소 가부시키가이샤 | Slot liners and rotating electric machines |
| CN117897887A (en) * | 2021-11-25 | 2024-04-16 | 日机装株式会社 | Slot liner and rotary electric machine |
| KR102678250B1 (en) | 2021-11-25 | 2024-06-26 | 니기소 가부시키가이샤 | Slot liners and rotating electric machines |
| CN117897887B (en) * | 2021-11-25 | 2024-07-05 | 日机装株式会社 | Slot liner and rotary electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4173300B2 (en) | 2008-10-29 |
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