JPS6019131B2 - Manufacturing method of molded coil - Google Patents
Manufacturing method of molded coilInfo
- Publication number
- JPS6019131B2 JPS6019131B2 JP3259579A JP3259579A JPS6019131B2 JP S6019131 B2 JPS6019131 B2 JP S6019131B2 JP 3259579 A JP3259579 A JP 3259579A JP 3259579 A JP3259579 A JP 3259579A JP S6019131 B2 JPS6019131 B2 JP S6019131B2
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- conductor
- woven fabric
- polyester film
- winding
- 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
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Description
【発明の詳細な説明】
この発明はプリプレッグテープを導体に被覆し、この導
体をコイル状に巻回して製造するモールドコィルの製造
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a molded coil by covering a conductor with a prepreg tape and winding the conductor into a coil.
第１図は従来のモールドコィルの製造方法によって製造
されたモールドコィルを示す断面である。第１図におい
て、素線絶縁テープ２を必要枚数巻回した平角導体１を
、コイル状にコイル巻して、これを注型用金型（図示せ
ず）に組込む。その後、シリカ粉末等の充填材を混合し
たェポキシ樹脂３を金型内へ流し込んで、加熱硬化させ
モールドコィルを製作していた。この従釆のモールドコ
イルにおいては注型用金型が必要であり、金型の大きさ
等の制約を受けるため、コイルの設計自由度が少さく、
しかも金型を製作する期間および費用がかかる等の欠点
があった。また素線絶縁テープ２間、または素線絶縁テ
ープ２と導体１の間等の狭いスキ間には、ェポキシ樹脂
３が含浸できないため、導体１同志を強固に固定できな
い欠点があった。さらに導体１同志を強固に固定できな
いため、コイル状に巻回された導体１が、電磁力等の外
力によって動くのを押えるために、外層のェポキシ樹脂
３の厚さを厚くしなければならなかった。従ってモール
ドコィルの寸法および重量が増大するなどの欠点があっ
た。この発明は上記従来の欠点を除去するためになされ
たものである。FIG. 1 is a cross section showing a molded coil manufactured by a conventional molded coil manufacturing method. In FIG. 1, a rectangular conductor 1 having a necessary number of wire insulating tapes 2 wound thereon is wound into a coil, and this is assembled into a casting mold (not shown). Thereafter, an epoxy resin 3 mixed with a filler such as silica powder was poured into a mold and hardened by heating to produce a molded coil. This secondary molded coil requires a casting mold, and is subject to restrictions such as the size of the mold, so there is little freedom in designing the coil.
Moreover, there were drawbacks such as the time and cost required to produce the mold. Furthermore, narrow gaps such as between the wire insulating tapes 2 or between the wire insulating tape 2 and the conductor 1 cannot be impregnated with the epoxy resin 3, so there is a drawback that the conductors 1 cannot be firmly fixed to each other. Furthermore, since the conductors 1 cannot be firmly fixed together, the thickness of the outer layer of epoxy resin 3 must be increased in order to prevent the coiled conductor 1 from moving due to external forces such as electromagnetic force. Ta. Therefore, there were drawbacks such as an increase in the size and weight of the molded coil. This invention has been made to eliminate the above-mentioned conventional drawbacks.
以下図面によりこの発明を説明する。第２図はこの発明
に係るモールドコィルの製造方法によって製造されたモ
ールドコィルの一実施例を示す断面図である。The present invention will be explained below with reference to the drawings. FIG. 2 is a sectional view showing an embodiment of a molded coil manufactured by the molded coil manufacturing method according to the present invention.
第２図において、導体Ｉにはポリエステルフィルムプリ
プレツグテープ４が巻回されている。ポリエステルフィ
ルムプリプレッグテープ４はポリエステルフィルムの表
面を１〜３０仏ｍの凹凸をつけて、これにェポキシ樹脂
を付着させ、このェポキシ樹脂を半硬化状態（通常Ｂス
テ−ジと呼ばれている）に熱処理したものを必要な幅寸
法に幅切りして構成されたものである。このポリエステ
ルフィルムブリプレツグテープ４を導体１に必要枚数巻
回した後、導体１をコイル巻用の巻芯型にコイル巻して
コイルを成型する。このコイルを加熱炉に入れて、Ｂス
テージのェポキシ樹脂を完全に硬化させ、モールドコィ
ルを製作する。コイル巻芯型はコイル巻完了後、または
ェポキシ樹脂を完全に硬化させた後に取はずすことがで
きる。ポリエステルフィルムの面に付着させるェポキシ
樹脂量を増やすためと、付着力を向上させるために、ポ
リエステルフィルムの表面にポリエステル繊維またはポ
リエステル織布を接着または熱融着させて、それにェポ
キシ樹脂を付着させ熱処理をして使用することもできる
。この熱処理したものをポリエステルフィルム不織布プ
リプレッグテープと云う。ポリエステル不織布プリプレ
ツグテープとポリエステルのみからなるテープとを導体
１に必要枚数交互に巻回して、これをコイル巻すること
もできる。また第３図に示すようにポリエステルのみか
らなるテープ５を必要枚数巻回した上に、さらにポリエ
ステル不織布プリプレツグテープ６またはポリエステル
フィルムプリプレッグテープ４を必要枚数巻回した導体
１を使用することもできる。以上のように、この発明に
よれば導体にポリエステルフィルム不織布プリプレッグ
テープとポリエステルテープとを交互、またはポリエス
テルテープを巻回した後ポリエステルフィルム不織布プ
リプレッグテ−プを巻回し、加熱処理を行うようにした
ので、洋型用金型が不要かつ機械的に強固でコンパクト
なモールドコィルを得ることができる。In FIG. 2, a polyester film prepreg tape 4 is wound around the conductor I. The polyester film prepreg tape 4 is made by making the surface of a polyester film uneven with a depth of 1 to 30 mm, adhering epoxy resin to this, and applying the epoxy resin to a semi-cured state (usually called the B stage). It is constructed by heat-treating the material and cutting it into the required width. After winding the required number of polyester film prepreg tapes 4 around the conductor 1, the conductor 1 is wound around a core for coil winding to form a coil. This coil is placed in a heating furnace to completely cure the B-stage epoxy resin, producing a molded coil. The coil core mold can be removed after the coil winding is completed or after the epoxy resin is completely cured. In order to increase the amount of epoxy resin attached to the surface of the polyester film and to improve the adhesion force, polyester fibers or polyester woven fabric are adhered or heat-sealed to the surface of the polyester film, and the epoxy resin is attached to it and then heat treated. You can also use This heat-treated product is called polyester film nonwoven fabric prepreg tape. It is also possible to alternately wind the required number of polyester nonwoven fabric prepreg tapes and tapes made only of polyester around the conductor 1, thereby forming a coil. Further, as shown in FIG. 3, a conductor 1 may be used in which a necessary number of tapes 5 made only of polyester are wound, and a necessary number of polyester nonwoven fabric prepreg tapes 6 or polyester film prepreg tapes 4 are further wound. You can also do it. As described above, according to the present invention, a polyester film non-woven fabric prepreg tape and a polyester tape are alternately wound around a conductor, or a polyester film non-woven fabric prepreg tape is wound around a conductor, and then a polyester film non-woven fabric prepreg tape is wound around the conductor, and heat treatment is performed. Therefore, a molded coil that is mechanically strong and compact can be obtained without the need for a Western-style mold.
第１図は従来の製法によるモールドコィルを示す断面図
である。
第２図はこの発明に係るモールドコィルの一実施例を示
す断面図である。第３図はこの発明に使用される導体の
一実施例を示す断面図である。図において、１は導体、
４はポリエステルフィルムプリプレッグテープ、６はポ
リエステル不織布プリプレッグテープである。
第１図
第２図
第３図FIG. 1 is a sectional view showing a molded coil produced by a conventional manufacturing method. FIG. 2 is a sectional view showing an embodiment of the molded coil according to the present invention. FIG. 3 is a sectional view showing one embodiment of a conductor used in the present invention. In the figure, 1 is a conductor,
4 is a polyester film prepreg tape, and 6 is a polyester nonwoven fabric prepreg tape. Figure 1 Figure 2 Figure 3
Claims (1)
ステル繊維もしくはポリエステル織布を接着もしくは熱
融着させた後、前記ポリエステル繊維もしくはポリエス
テル織布にエポキシ樹脂を付着させて熱処理しポリエス
テルフイルム不織布プリプレツグテープを構成する工程
と、導体にポリエステルテープと前記ポリエステルフイ
ルム不織布プリプレツグテープとを交互に巻回する工程
と、前記導体をコイル状に巻回し加熱処理を行う工程と
からなることを特徴とするモールドコイルの製造方法。 ２ ポリエステルフイルムの片面もしくは両面にポリエ
ステル繊維もしくはポリエステル織布を接着もしくは熱
融着させた後、前記ポリエステル繊維もしくはポリエス
テル織布にエポキシ樹脂を付着させて熱処理しポリエス
テルフイルム不織布プリプレツグテープを構成する工程
と、導体に前記ポリエステルテープを巻回した後前記ポ
リエステルフイルム不織布プリプレツグテープを巻回す
る工程と、前記導体をコイル状に巻回し加熱処理を行う
工程とからなることを特徴とするモールドコイルの製造
方法。[Scope of Claims] 1. After adhering or heat-sealing polyester fibers or polyester woven fabric to one or both sides of a polyester film, an epoxy resin is attached to the polyester fiber or polyester woven fabric and heat-treated to produce a polyester film non-woven fabric preform. The process consists of a step of forming a pre-preg tape, a step of alternately winding a polyester tape and the polyester film non-woven fabric pre-preg tape around a conductor, and a step of winding the conductor into a coil shape and subjecting it to heat treatment. Characteristic molded coil manufacturing method. 2. After adhering or heat-sealing polyester fibers or polyester woven fabric to one or both sides of a polyester film, attaching an epoxy resin to the polyester fiber or polyester woven fabric and heat-treating it to form a polyester film non-woven prepreg tape. a step of winding the polyester tape around the conductor and then winding the polyester film nonwoven fabric prepreg tape; and a step of winding the conductor into a coil shape and subjecting it to heat treatment. How to manufacture coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3259579A JPS6019131B2 (en) | 1979-03-19 | 1979-03-19 | Manufacturing method of molded coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3259579A JPS6019131B2 (en) | 1979-03-19 | 1979-03-19 | Manufacturing method of molded coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55124220A JPS55124220A (en) | 1980-09-25 |
| JPS6019131B2 true JPS6019131B2 (en) | 1985-05-14 |
Family
ID=12363205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3259579A Expired JPS6019131B2 (en) | 1979-03-19 | 1979-03-19 | Manufacturing method of molded coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019131B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120630U (en) * | 1982-02-12 | 1983-08-17 | 株式会社東芝 | Resin mold winding |
-
1979
- 1979-03-19 JP JP3259579A patent/JPS6019131B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55124220A (en) | 1980-09-25 |
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