JPH0466086B2 - - Google Patents
Info
- Publication number
- JPH0466086B2 JPH0466086B2 JP24314283A JP24314283A JPH0466086B2 JP H0466086 B2 JPH0466086 B2 JP H0466086B2 JP 24314283 A JP24314283 A JP 24314283A JP 24314283 A JP24314283 A JP 24314283A JP H0466086 B2 JPH0466086 B2 JP H0466086B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- silicone
- outer skin
- molded coil
- epoxy resin
- 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.)
- Expired
Links
- 239000003822 epoxy resin Substances 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- 229920002050 silicone resin Polymers 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 239000009719 polyimide resin Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005339 levitation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/06—Insulation of windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
この発明はモールドコイルに関し、特に磁気浮
上列車用浮上用マグネツトコイル等、熱や水等の
影響を受け易い場所で使用されるに適したモール
ドコイルに関するものである。[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a molded coil, and is particularly suitable for use in places easily affected by heat, water, etc., such as levitation magnet coils for magnetic levitation trains. The present invention relates to a molded coil.
(ロ) 従来技術とその問題点
第１図はモールドコイル１の外観、第２図はそ
の断面図である。このモールドコイル１は、コイ
ル巻きした素線束２上にマトリツクス樹脂を含浸
した補強基材を巻付けたのち硬化成形することに
より外皮３を形成したものである。第３図は素線
束２を樹脂４でモールドし、上記と同様の外皮３
を形成したものである。(b) Prior art and its problems FIG. 1 is an external appearance of a molded coil 1, and FIG. 2 is a cross-sectional view thereof. This molded coil 1 has an outer skin 3 formed by winding a reinforcing base material impregnated with a matrix resin on a coiled wire bundle 2 and then hardening and molding the reinforcing base material. Figure 3 shows a wire bundle 2 molded with resin 4 and an outer skin 3 similar to the above.
was formed.
このようなモールドコイルを製作するに際し、
外皮３を形成する補強基材に含浸されるマトリツ
クス樹脂としては、エポキシ樹脂、不飽和ポリエ
ステル樹脂、シリコン樹脂、ポリイミド樹脂等が
ある。これらの樹脂のうち、耐熱性の見地からは
シリコン樹脂、ポリイミド樹脂が好適である。し
かし、ポリイミド樹脂は、溶融粘度が高く、かつ
可使時間も短いため、所謂ウエツト法には不適当
である。そのため、ポリイミド樹脂はプリプレグ
状態（溶剤等で希釈した状態で補強基材に含浸
し、溶剤を発揮させ高粘稠化した状態）で用いら
れるが、このプリプレグ法では、ボイドの混入が
避け難いため、電気絶縁性等の点で信頼性に欠け
る。 When manufacturing such a molded coil,
Examples of the matrix resin with which the reinforcing base material forming the outer skin 3 is impregnated include epoxy resin, unsaturated polyester resin, silicone resin, and polyimide resin. Among these resins, silicone resins and polyimide resins are preferred from the viewpoint of heat resistance. However, since polyimide resin has a high melt viscosity and a short pot life, it is unsuitable for the so-called wet method. Therefore, polyimide resin is used in a prepreg state (diluted with a solvent, etc. and impregnated into a reinforcing base material, and made highly viscous by exerting the solvent), but with this prepreg method, it is difficult to avoid the inclusion of voids. , lacks reliability in terms of electrical insulation, etc.
したがつて、モールドコイルの外皮を形成する
マトリツクス樹脂としては、シリコン樹脂、特に
低粘度、無溶剤型のシリコン樹脂が好ましいが、
シリコン樹脂は、耐候性、耐水性に劣る点がある
ため、外気にさらされ易い場所で使用する場合に
問題がある。 Therefore, as the matrix resin forming the outer skin of the molded coil, a silicone resin, particularly a low-viscosity, solvent-free silicone resin, is preferable.
Silicone resins have poor weather resistance and water resistance, which poses a problem when used in locations that are easily exposed to the outside air.
(ハ) 問題点を解決するための手段
上記の問題点を解決するために、この発明は、
シリコン樹脂をマトリツクス樹脂とした外皮の外
周に、シリコン・エポキシ樹脂共重合体とエポキ
シ樹脂の少なくとも一方を含む被覆層を形成する
こととしたものである。(c) Means for solving the problems In order to solve the above problems, this invention
A coating layer containing at least one of a silicone-epoxy resin copolymer and an epoxy resin is formed on the outer periphery of an outer skin made of silicone resin as a matrix resin.
(ニ) 実施例
第４図は、前述の第２図のものの外皮３の外周
に被覆層５を形成したもの、第５図は第３図のも
のの外皮３の外周に被覆層５を形成したものであ
る。(D) Example FIG. 4 shows a case in which a coating layer 5 is formed around the outer periphery of the outer skin 3 of the one shown in FIG. 2, and FIG. It is something.
これらの被覆層５は、シリコン・エポキシ樹脂
共重合体またはエポキシ樹脂のいずれか一方によ
り形成される。エポキシ樹脂によつて被覆層５を
形成する場合は、外皮３のシリコン樹脂との接着
性を良好にするために、外皮３と被覆層５の間に
シランカツプリング剤、有機モタネート等の表面
処理剤を介在させることが望ましい。 These covering layers 5 are formed of either a silicone epoxy resin copolymer or an epoxy resin. When the coating layer 5 is formed of epoxy resin, a surface treatment such as a silane coupling agent or an organic motanate is applied between the coating layer 5 and the coating layer 5 in order to improve the adhesion of the coating layer 3 to the silicone resin. It is desirable to intervene with an agent.
なお、被覆層５は、上記のシリコン・エポキシ
樹脂共重合体と、エポキシ樹脂を二層に積層して
形成してもよい。 Note that the covering layer 5 may be formed by laminating two layers of the silicone-epoxy resin copolymer and the epoxy resin.
その他、第４図の実施例において、コイル素線
間に、弾性率100kｇ／mm2以下のシリコン樹脂ま
たはゴムを充填する場合もある。これらの弾性体
は、熱応力によるクラツクを防止し、コイルの形
状保持、熱的性質の向上を図る。 In addition, in the embodiment shown in FIG. 4, silicone resin or rubber having an elastic modulus of 100 kg/mm 2 or less may be filled between the coil wires. These elastic bodies prevent cracks caused by thermal stress, maintain the shape of the coil, and improve thermal properties.
(ホ) 効果
以上のように、この発明は外皮を形成するマト
リツクス樹脂がシリコン樹脂であることを前提と
し、その外皮の外周に形成される被覆層をシリコ
ン・エポキシ樹脂共重合体と、エポキシ樹脂の少
なくとも一方を含むように形成したものであるか
ら、耐熱性は外皮により、また耐候性、耐水性は
被覆層によりそれぞれ発揮されるので、両方あい
まつて、外気にさらされ易く、熱や水の影響を受
け易い条件下で使用するに適したモールドコイル
を得ることができる。(e) Effect As described above, the present invention is based on the premise that the matrix resin forming the outer skin is silicone resin, and the coating layer formed around the outer skin is made of a silicone-epoxy resin copolymer and an epoxy resin. Heat resistance is provided by the outer skin, and weather resistance and water resistance are provided by the coating layer. A molded coil suitable for use under sensitive conditions can be obtained.
第１図はモールドコイルの斜視図、第２図およ
び第３図は従来例のモールドコイルの断面図、第
４図および第５図は実施例のレールドコイルの断
面図である。
１……モールドコイル、２……素線束、３……
外皮、４……樹脂、５……被覆層。
FIG. 1 is a perspective view of a molded coil, FIGS. 2 and 3 are sectional views of a conventional molded coil, and FIGS. 4 and 5 are sectional views of a railed coil of an embodiment. 1... Molded coil, 2... Element wire bundle, 3...
Outer skin, 4...resin, 5...covering layer.
Claims (1)
トリツクス樹脂とする補強基材により外皮を形成
したモールドコイルにおいて、上記外皮の外周に
シリコン・エポキシ樹脂共重合体とエポキシ樹脂
の少なくとも一方を含む被覆層を形成したことを
特徴とするモールドコイル。 ２ 請求の範囲１に記載のモールドコイルに於い
て、コイル素線間に弾性率が100Kｇ／mm2以下の
シリコン樹脂又はゴムを充填したことを特徴とす
るモールドコイル。[Scope of Claims] 1. A molded coil in which an outer skin is formed on the outer periphery of a coiled wire bundle by a reinforcing base material having silicone resin as a matrix resin, and a silicone-epoxy resin copolymer and an epoxy resin are formed on the outer periphery of the outer skin. A molded coil characterized by forming a coating layer containing at least one side. 2. The molded coil according to claim 1, characterized in that silicone resin or rubber having an elastic modulus of 100 Kg/mm 2 or less is filled between the coil wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24314283A JPS60134403A (en) | 1983-12-22 | 1983-12-22 | Molded coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24314283A JPS60134403A (en) | 1983-12-22 | 1983-12-22 | Molded coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60134403A JPS60134403A (en) | 1985-07-17 |
| JPH0466086B2 true JPH0466086B2 (en) | 1992-10-22 |
Family
ID=17099411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24314283A Granted JPS60134403A (en) | 1983-12-22 | 1983-12-22 | Molded coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60134403A (en) |
-
1983
- 1983-12-22 JP JP24314283A patent/JPS60134403A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60134403A (en) | 1985-07-17 |
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