JP2003100526A - Transformer - Google Patents

Transformer

Info

Publication number
JP2003100526A
JP2003100526A JP2001289717A JP2001289717A JP2003100526A JP 2003100526 A JP2003100526 A JP 2003100526A JP 2001289717 A JP2001289717 A JP 2001289717A JP 2001289717 A JP2001289717 A JP 2001289717A JP 2003100526 A JP2003100526 A JP 2003100526A
Authority
JP
Japan
Prior art keywords
magnetic core
bobbin
transformer
coil
coil bobbin
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.)
Pending
Application number
JP2001289717A
Other languages
Japanese (ja)
Inventor
Takumi Watanabe
巧 渡辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Media Electronics Co Ltd
Original Assignee
Hitachi Media Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Media Electronics Co Ltd filed Critical Hitachi Media Electronics Co Ltd
Priority to JP2001289717A priority Critical patent/JP2003100526A/en
Publication of JP2003100526A publication Critical patent/JP2003100526A/en
Pending legal-status Critical Current

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  • Insulating Of Coils (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide such a transformer that can ensure a distance to a bobbin by preventing horizontal displacement when overlaying magnetic cores and of which magnetic core can be made small in shape by making the bobbin small in thickness. SOLUTION: This transformer is provided with a coil bobbin 2a wound by a coil and a magnetic core 3a to be inserted facing the coil bobbin 2a. The coil bobbin 2a is provided with a regulating rib la extending in the direction of laminating the magnetic core so that the laminated magnetic cores 3a is arranged in line for fixation.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、高電圧を発生させ
るトランスに係り、特にコイルを巻回したコイルボビン
と、そのコイルボビンに対向して挿入される磁芯とを備
えたトランスに関する。 【0002】 【従来の技術】図4は従来例に係るトランスの側面図、
図5はそのトランスの横断面図である。ボビン2bに
は、珪素鋼板製の磁芯3bが対向して挿入される。ま
た、ボビン2bには、珪素鋼板厚の累積公差が原因で生
じる積層のばらつきによる磁芯の落下を防ぐため、ボビ
ン2bの磁芯挿入部に一体成形するリブ1bを、磁芯積
み上げ厚の寸法を吸収する高さで設ける。磁芯3bはリ
ブ1bを削り取りながら挿入される。符号4は巻線であ
る。 【0003】 【発明が解決しようとする課題】このリブ1bにより磁
芯3bの積み上げ方向とボビン2bの間に絶縁距離を設
けることができ、ボビン2bの肉厚を小さくしていた。
しかし、磁芯3bの横方向をリブ1bと同様の形状の部
材で押さえることができないため、磁芯3bを整列して
重ねることができない。そして磁芯3bがずれた場合、
磁芯3bとボビン2bが接触してしまうことになる。 【0004】この不具合を回避するためには、ボビン2
bの肉厚を厚くし、かつ巻溝の高さに対しても磁芯3b
との距離を取らなければならず、そのためトランスの形
状が大きくなってしまうという問題があった。 【0005】本発明の目的は、このような従来技術の欠
点を解消し、磁芯を積み重ねる際、横方向のずれを抑え
ることにより、ボビンとの距離を確保し、ボビンの肉厚
を薄くし、磁芯の形状も小さくすることが可能なトラン
スを提供することにある。 【0006】 【課題を解決するための手段】上記目的を達成するため
に、本発明は、コイルを巻回したコイルボビンと、該コ
イルボビンに対向して挿入される磁芯とを備えたトラン
スにおいて、積層された磁芯を整列させ固定するため
に、磁芯積層方向に伸びる規制リブをコイルボビンに設
けたことを特徴とするものである。 【0007】 【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図1は本発明の実施形態に係るト
ランスの側面図、図2はそのトランスの横断面図、図3
はそのトランスの縦断面図である。 【0008】図1は磁芯3aを片側のみ挿入した状態を
示す。本発明のトランスは、ボビン2a、コイル4、規
制(磁芯固定用)リブ1a、磁芯3aを有している。ま
た、従来よりのリブ1bも有している。ボビン2aに一
体成形する規制リブ1aは、例えば磁芯挿入口左右に設
けられ、磁芯3aの足付け根部で固定される。図2に示
すようにこの規制リブ1aは、磁芯3aの左右の足付け
根部で磁芯3aを積み重ね方向に整列させ固定する。 【0009】これらのリブ1a、1bにより、磁芯3a
とボビン2aの距離が確実に確保され、磁芯3aがボビ
ン2aに触れることが無いため、ボビン2aの肉厚を薄
くでき、巻鍔と磁芯3aとの距離も小さくできる。 【0010】 【発明の効果】以上説明したように、本発明によれば、
コイルを巻回したコイルボビンと、該コイルボビンに対
向して挿入される磁芯とを備えたトランスであって、積
層された磁芯を整列させ固定するために、磁芯積層方向
に伸びる規制リブをコイルボビンに設けたので、磁芯な
らびにトランスの小型化を図ることができ、また同一の
大きさの他のトランスと比べて高出力が可能となる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transformer for generating a high voltage, and more particularly to a coil bobbin wound with a coil and a magnetic core inserted facing the coil bobbin. And a transformer comprising: 2. Description of the Related Art FIG. 4 is a side view of a conventional transformer.
FIG. 5 is a cross-sectional view of the transformer. A magnetic core 3b made of a silicon steel plate is inserted into the bobbin 2b so as to face the bobbin 2b. The bobbin 2b is provided with a rib 1b integrally formed on the magnetic core insertion portion of the bobbin 2b in order to prevent the magnetic core from falling due to a variation in lamination caused by the accumulated tolerance of the thickness of the silicon steel plate. At a height that absorbs The magnetic core 3b is inserted while shaving off the rib 1b. Reference numeral 4 denotes a winding. [0003] The rib 1b can provide an insulating distance between the direction in which the magnetic cores 3b are stacked and the bobbin 2b, thereby reducing the thickness of the bobbin 2b.
However, since the lateral direction of the magnetic core 3b cannot be pressed by a member having the same shape as the rib 1b, the magnetic cores 3b cannot be aligned and overlapped. And when the magnetic core 3b is displaced,
The magnetic core 3b comes into contact with the bobbin 2b. In order to avoid this problem, the bobbin 2
b and the magnetic core 3b with respect to the height of the winding groove.
And the distance from the transformer must be kept large, which causes a problem that the shape of the transformer becomes large. SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the disadvantages of the prior art and suppress the lateral displacement when stacking magnetic cores, thereby securing a distance from the bobbin and reducing the thickness of the bobbin. Another object of the present invention is to provide a transformer capable of reducing the shape of a magnetic core. To achieve the above object, the present invention provides a transformer having a coil bobbin on which a coil is wound, and a magnetic core inserted facing the coil bobbin. In order to align and fix the laminated magnetic cores, a regulating rib extending in the magnetic core laminating direction is provided on the coil bobbin. Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of a transformer according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the transformer, and FIG.
Is a longitudinal sectional view of the transformer. FIG. 1 shows a state where the magnetic core 3a is inserted on only one side. The transformer of the present invention has a bobbin 2a, a coil 4, a regulating (magnetic core fixing) rib 1a, and a magnetic core 3a. It also has a conventional rib 1b. The regulating ribs 1a integrally formed with the bobbin 2a are provided, for example, on the left and right of the magnetic core insertion opening, and are fixed at the bases of the magnetic core 3a. As shown in FIG. 2, the restricting ribs 1a align and fix the magnetic cores 3a in the stacking direction at the left and right foot portions of the magnetic core 3a. The ribs 1a and 1b form a magnetic core 3a.
Since the distance between the bobbin 2a and the bobbin 2a is ensured and the magnetic core 3a does not touch the bobbin 2a, the thickness of the bobbin 2a can be reduced, and the distance between the winding flange and the magnetic core 3a can be reduced. As described above, according to the present invention,
A transformer having a coil bobbin around which a coil is wound and a magnetic core inserted opposite to the coil bobbin, and a regulating rib extending in a magnetic core laminating direction in order to align and fix the laminated magnetic cores. Since it is provided on the coil bobbin, the size of the magnetic core and the transformer can be reduced, and a higher output can be achieved as compared with other transformers having the same size.

【図面の簡単な説明】 【図1】本発明の実施形態に係るトランスの側面図であ
る。 【図2】そのトランスの横断面図である。 【図3】そのトランスの縦断面図である。 【図4】従来例に係るトランスの側面図である。 【図5】そのトランスの横断面図である。 【符号の説明】 1a 規制リブ 1b 従来よりのリブ 2a ボビン 3a 磁芯
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a transformer according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the transformer. FIG. 3 is a longitudinal sectional view of the transformer. FIG. 4 is a side view of a transformer according to a conventional example. FIG. 5 is a cross-sectional view of the transformer. [Description of Signs] 1a Regulation rib 1b Conventional rib 2a Bobbin 3a Magnetic core

Claims (1)

【特許請求の範囲】 【請求項1】 コイルを巻回したコイルボビンと、その
コイルボビンに対向して挿入される磁芯とを備えたトラ
ンスにおいて、積層された磁芯を整列させ固定するため
に、磁芯積層方向に伸びる規制リブをコイルボビンに設
けたことを特徴とするトランス。
Claims 1. In a transformer having a coil bobbin around which a coil is wound and a magnetic core inserted facing the coil bobbin, in order to align and fix the laminated magnetic cores, A transformer characterized in that a regulating rib extending in the magnetic core laminating direction is provided on a coil bobbin.
JP2001289717A 2001-09-21 2001-09-21 Transformer Pending JP2003100526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001289717A JP2003100526A (en) 2001-09-21 2001-09-21 Transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001289717A JP2003100526A (en) 2001-09-21 2001-09-21 Transformer

Publications (1)

Publication Number Publication Date
JP2003100526A true JP2003100526A (en) 2003-04-04

Family

ID=19112170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001289717A Pending JP2003100526A (en) 2001-09-21 2001-09-21 Transformer

Country Status (1)

Country Link
JP (1) JP2003100526A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100852925B1 (en) 2005-01-17 2008-08-19 혼다 기켄 고교 가부시키가이샤 Bobbin-less coil and method of manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100852925B1 (en) 2005-01-17 2008-08-19 혼다 기켄 고교 가부시키가이샤 Bobbin-less coil and method of manufacturing the same
US7696848B2 (en) 2005-01-17 2010-04-13 Honda Motor Co., Ltd. Bobbinless coil and method of manufacturing the same
US7834734B2 (en) 2005-01-17 2010-11-16 Honda Motor Co., Ltd. Bobbinless coil and method of manufacturing the same

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