JPS6159645B2 - - Google Patents
Info
- Publication number
- JPS6159645B2 JPS6159645B2 JP54123197A JP12319779A JPS6159645B2 JP S6159645 B2 JPS6159645 B2 JP S6159645B2 JP 54123197 A JP54123197 A JP 54123197A JP 12319779 A JP12319779 A JP 12319779A JP S6159645 B2 JPS6159645 B2 JP S6159645B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- winding
- strength fiber
- fiber material
- flame
- 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
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)
- Insulating Of Coils (AREA)
Description
【発明の詳細な説明】
本発明はＨ種絶縁を施した難燃性の樹脂モール
ドコイルに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flame-retardant resin molded coil provided with H-class insulation.
近年、不燃性油（PCB）の使用禁止に伴ない、
変圧器等の静止誘導機器用コイルとして、樹脂モ
ールドコイルが用いられるようになつている。従
来の樹脂モールドコイルとしては、巻線をエポキ
シ樹脂で所定の形状に注型した後樹脂を加熱硬化
させたものと、エポキシ樹脂を含浸させたガラス
ロービング、またはガラステープ等の高強度繊維
材料を巻線の外面にトロイダル状に、または巻回
方向に沿わせて巻きつけた後樹脂を加熱硬化させ
たものとが知られており、従来の前者のモールド
コイルにおいては、エポキシ樹脂にシリカ粉末等
を混入することにより耐熱性を向上させ、後者の
モールドコイルにおいては樹脂量を少なくするこ
とにより耐熱性を向上させている。しかしなが
ら、このようにして作られたモールドコイルは耐
熱区分がＢ種またはＦ種のものが一般的である。
またエポキシ樹脂にシリカを混入しても、高温度
に達した状態の樹脂に火炎を近づけた場合には着
火し、一度着火すると火炎を遠去けてもすぐには
消火しない。したがつて従来の樹脂モールドコイ
ルを用いた場合には、Ｈ種絶縁で難燃性の電気機
器を得ることがむずかしく、不燃性油（PCB）を
用いたものに比べて難燃性の点でかなり劣つてい
た。 In recent years, with the ban on the use of non-flammable oils (PCBs),
Resin molded coils have come to be used as coils for stationary induction devices such as transformers. Conventional resin-molded coils include those made by casting a winding wire into a predetermined shape with epoxy resin and then heating and hardening the resin, and those made from high-strength fiber materials such as glass roving or glass tape impregnated with epoxy resin. It is known that a resin is heated and hardened after being wrapped around the outer surface of the coil in a toroidal shape or along the winding direction.In the conventional molded coil of the former type, epoxy resin is coated with silica powder, etc. In the latter molded coil, the heat resistance is improved by reducing the amount of resin. However, the molded coils made in this manner are generally of class B or class F heat resistance.
Furthermore, even if silica is mixed into epoxy resin, if a flame is brought close to the resin that has reached a high temperature, it will ignite, and once ignited, it will not extinguish immediately even if the flame is removed. Therefore, when using conventional resin molded coils, it is difficult to obtain flame-retardant electrical equipment with class H insulation, and compared to those using non-flammable oil (PCB), it is difficult to obtain flame-retardant electrical equipment. It was quite inferior.
本発明の目的は、耐熱区分がＨ種で、しかも難
燃性の樹脂モールドコイルを提供することにあ
る。 An object of the present invention is to provide a resin molded coil that has a heat resistance classification of H class and is flame retardant.
以下図示の実施例により本発明を詳細に説明す
る。 The present invention will be explained in detail below with reference to the illustrated embodiments.
図において１は本発明に係る樹脂モールドコイ
ルで、導体を円筒状に複数層巻回してなる巻線２
の内、外周面及び両端面と、巻線２の巻回導体層
間とは、シリコンゴムを基材とし白金触媒を含有
するシリコン樹脂を含浸させたガラスロービング
またはガラステープ等の高強度繊維材料３により
絶縁されている。上記シリコン樹脂としては例え
ば、東芝シリコン株式会社製の品番TSE−
3431RTVまたはTSE−3431RTV−Ｈの２成分型
シリコンゴムを用いることができる。このシリコ
ンゴムは十分な絶縁耐力を有していてＨ種の耐熱
性がある上に難燃性を有しており、たとえ火炎が
生じても熱源を除去すれぱ自然消火する。また硬
化した状態では弾性を有しており、熱衝撃及び機
械的衝撃の双方に対して強固である。 In the figure, 1 is a resin molded coil according to the present invention, and 2 is a winding formed by winding a conductor in multiple layers in a cylindrical shape.
Among these, the outer circumferential surface and both end surfaces and the space between the winding conductor layers of the winding 2 are made of a high-strength fiber material 3 such as glass roving or glass tape, which is made of silicone rubber and impregnated with a silicone resin containing a platinum catalyst. is insulated by For example, the silicone resin mentioned above is manufactured by Toshiba Silicon Co., Ltd. with product number TSE-
3431RTV or TSE-3431RTV-H two-component silicone rubber can be used. This silicone rubber has sufficient dielectric strength, class H heat resistance, and flame retardancy, so that even if a flame occurs, it will naturally extinguish if the heat source is removed. Moreover, it has elasticity in a hardened state and is strong against both thermal shock and mechanical shock.
上記モールドコイルを製造するには、ガラスロ
ービング、ガラステープ等の高強度繊維材料に上
記シリコン樹脂を含浸させ、外周面に離型剤を塗
布した図示しない巻枠を回転させながらその巻枠
の外周面に樹脂を含浸させた高強度繊維材料を所
定のターン数で所定の幅l1と厚さd1になるように
巻きつける。その後各巻回導体層の外周面が高強
度繊維材料により覆われるようにして（即ち巻回
導体層間に高強度繊維材料が介在するようにし
て）巻線導体と高強度繊維材料とを一緒に巻回し
て所定ターン数の巻線を得る。次いで高強度繊維
材料のみを巻線の外周に所定の厚さd2の被覆が得
られるまで巻きつけ、更に巻線の巻回軸方向の両
端面を覆うように、巻枠の両端部付近の外周に高
強度繊維材料を所定幅l2，l2′と厚さd3とが得られ
るまで巻きつける。全ての巻回作業が終了した
後、樹脂が未硬化の状態で全体を巻枠ごと加熱炉
に入れて樹脂を硬化させ、巻線導体を一体化して
モールドコイルを完成させる。この場合シリコン
樹脂は弾性を有する状態で硬化する。 To manufacture the molded coil, a high-strength fiber material such as glass roving or glass tape is impregnated with the silicone resin, and while rotating a winding frame (not shown) coated with a release agent on the outer peripheral surface, the outer circumference of the winding frame is A high-strength fiber material whose surface is impregnated with resin is wound with a predetermined number of turns so that it has a predetermined width l 1 and thickness d 1 . Thereafter, the wound conductor and the high-strength fiber material are wound together such that the outer peripheral surface of each wound conductor layer is covered with the high-strength fiber material (that is, the high-strength fiber material is interposed between the wound conductor layers). Turn the wire to obtain a predetermined number of turns. Next, only the high-strength fiber material is wrapped around the outer periphery of the winding wire until a predetermined coating thickness d2 is obtained, and then the high-strength fiber material is wrapped around both ends of the winding frame so as to cover both end surfaces of the winding wire in the direction of the winding axis. A high-strength fiber material is wound around the outer periphery until predetermined widths l 2 , l 2 ′ and thickness d 3 are obtained. After all the winding work is completed, the entire coil frame is placed in a heating furnace with the resin uncured to harden the resin, and the winding conductor is integrated to complete the molded coil. In this case, the silicone resin is cured in an elastic state.
上記のように、白金触媒を含有するシリコン樹
脂をモールド樹脂として用いると、シリコン樹脂
がＨ種の耐熱性と難燃性とを有していて、しかも
この樹脂が不燃性の高強度繊維材料に含浸されて
いるため、Ｈ種絶縁の極難燃性のモールドコイル
を得ることができる。また前記シリコン樹脂は未
硬化の状態ではきわめて低粘度で高強度繊維材料
への含浸性が良いため巻線時の作業性を向上させ
ることができる。硬化後のシリコン樹脂は耐熱性
を有していて熱衝撃にも強いため高温度での運転
が反復されても樹脂部にクラツク等が発生するこ
とがなく、また硬化後の樹脂が弾性を有するため
機械的衝撃に対しても強固である。 As mentioned above, when a silicone resin containing a platinum catalyst is used as a molding resin, the silicone resin has H-class heat resistance and flame retardancy, and this resin can also be used as a nonflammable high-strength fiber material. Because it is impregnated, it is possible to obtain an extremely flame-retardant molded coil with H class insulation. In addition, the silicone resin has extremely low viscosity in an uncured state and has good impregnation properties into high-strength fiber materials, so that workability during winding can be improved. The silicone resin after curing has heat resistance and is resistant to thermal shock, so even if it is repeatedly operated at high temperatures, cracks will not occur in the resin part, and the resin after curing has elasticity. Therefore, it is strong against mechanical shock.
以上のように、本発明によれば、シリコンゴム
を基材とし白金触媒を含有するシリコン樹脂を用
いたことによりＨ種の耐熱性を得ることができる
ため、電気機器の容量を増大させることができ、
換言すれば同容量のモールド電気機器であれば機
器を小形軽量化することができる利点がある。ま
たモールド部が極難燃性を有していてたとえ近傍
の熱源により火炎が生じてもその熱源を除けば直
ちに自然消火するので、地震等の災害に対する電
気機器の安全性を従来より一段と向上させること
ができる特長がある。 As described above, according to the present invention, heat resistance of class H can be obtained by using a silicone resin based on silicone rubber and containing a platinum catalyst, so that it is possible to increase the capacity of electrical equipment. I can do it,
In other words, molded electrical equipment of the same capacity has the advantage of being able to be made smaller and lighter. In addition, the molded part has extremely flame-retardant properties, so even if a flame is generated by a nearby heat source, the fire will immediately extinguish by itself once the heat source is removed, making electrical equipment even safer from earthquakes and other disasters than before. It has the feature of being able to
図面は本発明の一実施例を概略的に示した縦断
面図である。
１……樹脂モールドコイル、２……巻線、３…
…シリコン樹脂を含浸させた高強度繊維材料。
The drawing is a vertical sectional view schematically showing an embodiment of the present invention. 1... Resin molded coil, 2... Winding wire, 3...
...High strength fiber material impregnated with silicone resin.
Claims (1)
巻線を絶縁してなる樹脂モールドコイルにおい
て、前記合成樹脂はシリコンゴムを基材とし白金
触媒を含有するシリコン樹脂であることを特徴と
する樹脂モールドコイル。1. A resin-molded coil whose windings are insulated by a high-strength fiber material impregnated with a synthetic resin, wherein the synthetic resin is a silicone resin based on silicone rubber and containing a platinum catalyst. coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319779A JPS5648103A (en) | 1979-09-27 | 1979-09-27 | Resin molded coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319779A JPS5648103A (en) | 1979-09-27 | 1979-09-27 | Resin molded coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5648103A JPS5648103A (en) | 1981-05-01 |
| JPS6159645B2 true JPS6159645B2 (en) | 1986-12-17 |
Family
ID=14854589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12319779A Granted JPS5648103A (en) | 1979-09-27 | 1979-09-27 | Resin molded coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5648103A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU567487B2 (en) * | 1982-01-25 | 1987-11-26 | Sony Corporation | Thermal printer |
| JPS6110478A (en) * | 1984-06-25 | 1986-01-17 | Nec Corp | Printer |
| JPS62162319A (en) * | 1986-01-13 | 1987-07-18 | Matsushita Electric Ind Co Ltd | Electronic apparatus |
| DE10023207A1 (en) * | 2000-05-12 | 2001-11-15 | Alstom Power Nv | Coil insulation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496160A (en) * | 1972-05-06 | 1974-01-19 | ||
| JPS5124301A (en) * | 1974-08-19 | 1976-02-27 | Nippon Sukyanaa Kk | Seihanyokirokutaino sakuseihoho |
| JPS5123979A (en) * | 1974-08-23 | 1976-02-26 | Mitsubishi Heavy Ind Ltd | Kisosochi niokeru joryugawakisokanroto karyugawakisokanrono chukeisochi |
| JPS5126399A (en) * | 1974-08-28 | 1976-03-04 | Toray Silicone Co | GARASUSENISHORYOEKIJOSHIRIKOONSOSEIBUTSU |
| JPS5933573B2 (en) * | 1976-09-29 | 1984-08-16 | 川崎化成工業株式会社 | New manufacturing method for carboxylic acid chloride |
-
1979
- 1979-09-27 JP JP12319779A patent/JPS5648103A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5648103A (en) | 1981-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1236272A (en) | Coil insulating method for rotary electric machine | |
| US2385460A (en) | Method of insulating electrical apparatus | |
| US5140292A (en) | Electrical coil with overlying vitrified glass winding and method | |
| US2949555A (en) | Banding or binding electrical rotors or armatures | |
| US1326366A (en) | Method of making electric coils. | |
| JPS6159645B2 (en) | ||
| US3659336A (en) | Method of manufacturing an inductive device | |
| AU637583B2 (en) | Article of manufacture | |
| US3657808A (en) | Methods of constructing electrical coils | |
| US2095705A (en) | Method of enclosing coil structures | |
| JPS605206B2 (en) | Electrical equipment coil and its manufacturing method | |
| JPS55120121A (en) | Manufacture of resin-molded coil | |
| JP3156370B2 (en) | Insulation method for field winding of rotating electric machine | |
| JPS5815444A (en) | Insulating coil for high-voltage | |
| US2792871A (en) | Electrical insulating structure and method of making the same | |
| JPS58202506A (en) | Resin-molded coil | |
| JPS57173921A (en) | Resin impregnated molded coil | |
| JPS6262444B2 (en) | ||
| JPS605205B2 (en) | resin molded coil | |
| JPS60207326A (en) | Manufacture of resin molded coil | |
| JPS57132312A (en) | Manufacture of resin impregnated coil | |
| JPS59113747A (en) | Insulating method for coil of rotary electric machine | |
| JPH01149410A (en) | Voltage current transformer | |
| JPH08279410A (en) | Insulation coil | |
| JPS59219915A (en) | Manufacture of resin molded coil |