JP3219302B2 - Transformer manufacturing method - Google Patents
Transformer manufacturing methodInfo
- Publication number
- JP3219302B2 JP3219302B2 JP09893592A JP9893592A JP3219302B2 JP 3219302 B2 JP3219302 B2 JP 3219302B2 JP 09893592 A JP09893592 A JP 09893592A JP 9893592 A JP9893592 A JP 9893592A JP 3219302 B2 JP3219302 B2 JP 3219302B2
- Authority
- JP
- Japan
- Prior art keywords
- iron core
- resin
- core
- opening
- coil
- 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 - Fee Related
Links
Landscapes
- Insulating Of Coils (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、宇宙ロケットや航空
機等に使用されるような比較的厳しい耐環境性が要求さ
れ、また、コイルに組込む鉄心の材質が物理的に比較的
もろい性質の物を使用するトランスの製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention requires relatively strict environmental resistance, such as that used in space rockets and aircrafts, and the material of the iron core incorporated in the coil is physically relatively brittle. And a method for manufacturing a transformer using the same.
【０００２】[0002]
【従来の技術】従来、この種のトランスは、コイルが巻
回されたコイルボビンに鉄心を組込んだ後、モールドし
た樹脂硬化時に生じる鉄心へのストレスを防止するた
め、まず、鉄心にストレス緩和用の緩衝材を塗布してか
ら全体をモールドして構成していた。2. Description of the Related Art Conventionally, a transformer of this type has a structure in which an iron core is first incorporated into a coil bobbin around which a coil is wound, in order to prevent stress on the iron core caused when the molded resin is cured. Was applied and then the whole was molded.
【０００３】このように従来のトランスでは鉄心へのス
トレス緩和のため、シリコン等の緩衝材を鉄心周囲に塗
布する必要があるため、作業性の上で手間がかかり、ま
た、塗布した緩衝材の上に、更に樹脂をモールドするこ
とから、寸法が大きくなってしまったり、モールドの
際、金型内のトランス本体の位置決めにも手間が取られ
る、という課題があった。As described above, in the conventional transformer, it is necessary to apply a cushioning material such as silicon around the iron core in order to alleviate stress on the iron core. In addition, since the resin is further molded, there is a problem that the dimensions are increased, and that during the molding, the positioning of the transformer main body in the mold is troublesome.
【０００４】[0004]
【発明が解決しようとする課題】この発明は上記のこと
に鑑み提案されたもので、その目的とするところは、鉄
心がもろい材質のものであっても高衝撃、高振動に耐え
ることができ、優れた耐環境性を有し宇宙ロケットや航
空機用として使用すると好適なトランスの製造方法を提
供することにある。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above, and has as its object to be able to withstand high impact and high vibration even if the iron core is made of a brittle material. Another object of the present invention is to provide a method of manufacturing a transformer having excellent environmental resistance and suitable for use in space rockets and aircraft.
【０００５】[0005]
【課題を解決するための手段】この発明は、コイル（１
０）を樹脂にてモールドしてモールド成形品（１）を形
成し、このモールド成形品（１）には開口部（３ａ）を
介し内部に鉄心（２）全体を収納し得る鉄心形状に対応
した形状をなす中空状の鉄心収納部（３）が形成され、
この鉄心収納部（３）内に、前記鉄心（２）の全体を収
納し、ついで、前記開口部（３ａ）に樹脂注入穴（８
ａ）を有する蓋（８）を取付けて塞ぎ、前記樹脂注入穴
（８ａ）から樹脂を注入して前記鉄心（２）の周囲に緩
衝材（１１）を設けてトランスを製造することを特徴と
する。すなわち、本発明のトランスは、コイル（１０）
を樹脂にてモールドしてなり、開口部（３ａ）を介して
内部に鉄心（２）全体を収納し得る鉄心形状に対応した
形状をなす鉄心収納部（３）が形成されたモールド成形
品（１）と、このモールド成形品（１）の前記鉄心収納
部（３）に収納された鉄心（２）と、前記開口部（３
ａ）を塞ぐ、樹脂注入穴（８ａ）を有する蓋（８）と、
この樹脂注入穴（８）から注入された樹脂からなり前記
鉄心（２）の周囲に設けられた緩衝材（１ １）とを備え
てなることを特徴としている。 According to the present invention, a coil (1) is provided.
0) is molded with resin to form a molded article (1), and the molded article (1) has an opening (3a).
Corresponds to iron core shape that can store the whole iron core (2) inside
A hollow iron core storage part (3) having a shaped shape is formed,
This core housing portion (3) within housing a total of the core (2), then the resin in the opening (3a) injection hole (8
closing attach the lid (8) having a), and characterized by producing transformer cushioning material (11) provided around the core by injecting resin from the resin injection hole (8a) (2) I do. That is, the transformer according to the present invention includes the coil (10)
Is molded with resin, and through the opening (3a)
Corresponding to iron core shape that can store the whole iron core (2) inside
Molding with iron core storage part (3) forming shape
Product (1) and the iron core storage of the molded product (1)
The core (2) housed in the section (3) and the opening (3)
a) a lid (8) having a resin injection hole (8a) for closing a);
It is made of resin injected from the resin injection hole (8).
And a cushioning material ( 11) provided around the iron core (2).
It is characterized by becoming.
【０００６】[0006]
【作用】この発明では、コイルのみ先モールドし、この
コイルモールド成形品１の形状を鉄心２の対面寸法の長
さまで形造ったため、ストレス緩和用の樹脂を塗布する
工程を省いている。また、鉄心２の周囲には緩衝用の樹
脂を注入し、優れた高衝撃、高振動性をもたせ、比較的
厳しい耐環境基準を満足させている。In the present invention, since only the coil is pre-molded and the shape of the coil molded article 1 is formed to the length of the facing surface of the iron core 2, the step of applying a resin for stress relaxation is omitted. In addition, a resin for buffering is injected around the iron core 2 so as to have excellent high impact and high vibration properties, thereby satisfying relatively strict environmental resistance standards.
【０００７】[0007]
【実施例】図１ないし図５は本発明の一実施例で、この
うち図１は本発明のトランスの分解斜視図であり、図中
１はコイルをエポキシ樹脂等でモールドしてなるモール
ド成形品を示す。このモールド成形品１の内部に、例え
ばＵ型鉄心２ａやＩ型鉄心２ｂからなる鉄心２を挿入す
るための鉄心収納部３が形成され、また、両端には鉄心
挿入用の開口部３ａが形成されている。なお、４，５は
モールド成形品１の上部，下部にそれぞれ一部が埋設さ
れた端子であり、コイルモールド成形品１の成形時に設
けられる。また、６は開口部３ａの側部に形成されたネ
ジ穴である。1 to 5 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of a transformer according to the present invention. In FIG. 1, reference numeral 1 denotes a mold formed by molding a coil with epoxy resin or the like. Indicates the product. Inside the molded product 1, an iron core storage part 3 for inserting an iron core 2 composed of, for example, a U-shaped iron core 2a or an I-shaped iron core 2b is formed, and openings 3a for inserting the iron core are formed at both ends. Have been. Reference numerals 4 and 5 denote terminals partially buried in the upper part and the lower part of the molded article 1, respectively. Reference numeral 6 denotes a screw hole formed on the side of the opening 3a.
【０００８】しかして、組立てにあたり、開口部３ａか
らフェライトのように、もろい材質からなる鉄心２を挿
入すると、鉄心２はモールド成形品１の鉄心収納部３中
に収まるようになっている。すなわち、モールド成形品
１の形状は、鉄心２の対面寸法の長さまで形造られてい
る。When the iron core 2 made of a brittle material such as ferrite is inserted from the opening 3a during assembly, the iron core 2 fits into the iron core storage part 3 of the molded article 1. That is, the shape of the molded product 1 is formed up to the length of the facing dimension of the iron core 2.
【０００９】鉄心組込後は開口部３ａにネジ７を用いて
蓋８を取付けている。この蓋８は開口部３ａを塞ぐ形状
に形成されている。図示例では横長の矩形をなし、かつ
材質は金属からなっているが、他の形状、他の材質であ
っても良い。After assembling the core, a cover 8 is attached to the opening 3a by using a screw 7. This lid 8 is formed in a shape to close the opening 3a. In the illustrated example, the shape is a horizontally long rectangle and the material is made of metal. However, other shapes and materials may be used.
【００１０】また、蓋８にはモールド成形品１の内部に
シリコンの如き樹脂を注入するための樹脂注入穴８ａが
形成され、そこから樹脂を注入・硬化させれば、図２に
示すように、トランスを完成させることができる。な
お、蓋８は樹脂硬化後、取外しても良い。この場合、若
干ではあるがその分重量が軽減し、かつ寸法もコンパク
トになる。A resin injection hole 8a for injecting a resin such as silicon into the inside of the molded article 1 is formed in the lid 8, and if the resin is injected and cured therefrom, as shown in FIG. , The transformer can be completed. Note that the lid 8 may be removed after the resin is cured. In this case, the weight is reduced, albeit slightly, and the size is reduced.
【００１１】図３ないし図５は上記のようにして構成さ
れたトランスの内部構造を示す半断面平面図，側断面
図，半断面正面図である。モールド成形品１の中にはコ
イルボビン９に巻回されたコイル１０が完全に埋設され
ている。そして、この例では鉄心収納部３に設けられた
鉄心２の各脚部２ａ’の周囲にそれぞれコイル１０が配
設されている。また、鉄心２の周囲には樹脂からなる緩
衝材１１が設けられている。なお、この緩衝材１１は耐
衝撃、耐振動性をもたせるためのものであり、かつ熱サ
イクルに依り鉄心２に加わるストレスを防止するもので
ある。また、作業性の面においては、従来では鉄心の表
面に樹脂をヘラにて塗布するなどし、この塗布作業は手
間を要していたが、本発明は樹脂を単に注入だけで、塗
布作業が無いため、作業性が良く、塗布量のバラツキも
無くなる。なお、コイル１０の引出線１０ａは、図４に
示すように、所定の端子４に接続されている。FIGS. 3 to 5 are a half sectional plan view, a side sectional view and a half sectional front view showing the internal structure of the transformer constructed as described above. A coil 10 wound around a coil bobbin 9 is completely embedded in the molded product 1. In this example, the coils 10 are arranged around the legs 2a 'of the iron core 2 provided in the iron core storage part 3, respectively. A cushioning material 11 made of resin is provided around the iron core 2. The cushioning material 11 is for imparting shock resistance and vibration resistance, and is for preventing stress applied to the iron core 2 due to a heat cycle. In addition, in terms of workability, conventionally, a resin was applied to the surface of the iron core with a spatula, and this application work was time-consuming. However, in the present invention, the application work is merely performed by simply injecting the resin. Since there is no such material, workability is good and there is no variation in the amount of application. Note that the lead wire 10a of the coil 10 is connected to a predetermined terminal 4, as shown in FIG.
【００１２】[0012]
【発明の効果】以上のように本発明では、まず、コイル
１０を樹脂にてモールドしてモールド成形品１を形成
し、このモールド成形品１中に形成された鉄心収納部３
内に、もろい材質からなる鉄心２の全体を収納してしま
うようにし、従来のように手間のかかるストレス緩衝用
の樹脂の塗布作業を行わなくても良いようにしたので、
組立作業性が良く、塗布量のバラツキも無くなるため、
品質的にも安定する。また、鉄心２の周囲には緩衝用の
樹脂が注入されてなる緩衝材１１があるため、高衝撃、
高振動に耐えることができ、優れた耐環境性を得ること
ができる。As described above, according to the present invention, first, the coil 10 is molded with resin to form a molded product 1, and the iron core receiving portion 3 formed in the molded product 1 is formed.
Inside, the entire iron core 2 made of a brittle material is stored, so that it is not necessary to perform a time-consuming and troublesome application work of the resin for stress buffering.
Because the workability of assembly is good and there is no variation in coating amount,
It is stable in quality. In addition, since there is a cushioning material 11 in which a buffering resin is injected around the iron core 2, high impact,
It can withstand high vibrations and can obtain excellent environmental resistance.
【図１】本発明によって製造されるトランスの分解斜視
図。FIG. 1 is an exploded perspective view of a transformer manufactured according to the present invention.
【図２】同上の組立状態の外観斜視図。FIG. 2 is an external perspective view of the same assembling state.
【図３】同上の半断面平面図。FIG. 3 is a half sectional plan view of the above.
【図４】同上の側断面図。FIG. 4 is a side sectional view of the same.
【図５】同上の半断面正面図。FIG. 5 is a half sectional front view of the above.
１ モールド成形品 ２ 鉄心 ２ａ Ｕ型鉄心 ２ｂ Ｉ型鉄心 ３ 鉄心収納部 ３ａ 開口部 ４，５ 端子 ６ ネジ穴 ７ ネジ ８ 蓋 ８ａ 樹脂注入穴 ９ コイルボビン １０ コイル １１ 緩衝材 DESCRIPTION OF SYMBOLS 1 Molded product 2 Iron core 2a U-shaped iron core 2b I-shaped iron core 3 Iron core storage part 3a Opening 4,5 Terminal 6 Screw hole 7 Screw 8 Lid 8a Resin injection hole 9 Coil bobbin 10 Coil 11 Buffer material
Claims (2)
モールド成形品（１）を形成し、このモールド成形品
（１）には開口部（３ａ）を介し内部に鉄心（２）全体
を収納し得る鉄心形状に対応した形状をなす中空状の鉄
心収納部（３）が形成され、この鉄心収納部（３）内
に、前記鉄心（２）の全体を収納し、ついで、前記開口
部（３ａ）に樹脂注入穴（８ａ）を有する蓋（８）を取
付けて塞ぎ、前記樹脂注入穴（８ａ）から樹脂を注入し
て前記鉄心（２）の周囲に緩衝材（１１）を設けること
を特徴としたトランスの製造方法。1. A molded product (1) is formed by molding a coil (10) with a resin, and the molded product is
(1) has an iron core (2) inside through an opening (3a).
Hollow iron with a shape corresponding to the core shape that can store
Formed cardiac housing portion (3) is, in the iron core housing portion (3) within housing a total of the core (2), then a lid having a resin injection hole (8a) to said opening (3a) ( 8) A method of manufacturing a transformer, wherein a buffer material (11) is provided around the core (2) by injecting a resin through the resin injection hole (8a) and closing the resin.
なり、開口部（３ａ）を介して内部に鉄心（２）全体を
収納し得る鉄心形状に対応した形状をなす鉄心収納部
（３）が形成されたモールド成形品（１）と、 このモールド成形品（１）の前記鉄心収納部（３）に収
納された鉄心（２）と、 前記開口部（３ａ）を塞ぐ、樹脂注入穴（８ａ）を有す
る蓋（８）と、 この樹脂注入穴（８）から注入された樹脂からなり前記
鉄心（２）の周囲に設けられた緩衝材（１１）と、 を備えてなることを特徴とするトランス。 (2)Mold the coil (10) with resin
And the entire iron core (2) inside through the opening (3a).
Core storage section that has a shape corresponding to the core shape that can be stored
A molded article (1) on which (3) is formed; The molded product (1) is stored in the iron core storage section (3).
Iron core (2) delivered, It has a resin injection hole (8a) for closing the opening (3a).
Lid (8), It is made of resin injected from the resin injection hole (8).
A cushioning material (11) provided around the iron core (2); A transformer characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09893592A JP3219302B2 (en) | 1992-03-25 | 1992-03-25 | Transformer manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09893592A JP3219302B2 (en) | 1992-03-25 | 1992-03-25 | Transformer manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05275249A JPH05275249A (en) | 1993-10-22 |
| JP3219302B2 true JP3219302B2 (en) | 2001-10-15 |
Family
ID=14232987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09893592A Expired - Fee Related JP3219302B2 (en) | 1992-03-25 | 1992-03-25 | Transformer manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3219302B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7368989B2 (en) * | 2019-09-19 | 2023-10-25 | 東芝産業機器システム株式会社 | High voltage coil for molded transformer and molded transformer |
-
1992
- 1992-03-25 JP JP09893592A patent/JP3219302B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05275249A (en) | 1993-10-22 |
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