JPH04105520U - transformer - Google Patents

transformer

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Publication number
JPH04105520U
JPH04105520U JP750191U JP750191U JPH04105520U JP H04105520 U JPH04105520 U JP H04105520U JP 750191 U JP750191 U JP 750191U JP 750191 U JP750191 U JP 750191U JP H04105520 U JPH04105520 U JP H04105520U
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JP
Japan
Prior art keywords
ferrite core
winding frame
ferrite
butt
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.)
Pending
Application number
JP750191U
Other languages
Japanese (ja)
Inventor
東洋 田村
裕 広岡
Original Assignee
松下電器産業株式会社
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 松下電器産業株式会社 filed Critical 松下電器産業株式会社
Priority to JP750191U priority Critical patent/JPH04105520U/en
Publication of JPH04105520U publication Critical patent/JPH04105520U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 【目的】 各種電気機器に使用される変成器において、
巻線済巻枠に組込む、フェライトコアの突き合わせ突合
せ面の研磨加工を不要とし、部材コストの低減と、短納
期化の推進を目的とする。 【構成】 上下端に鍔11,12を持つ筒状の巻枠10
に巻線13を巻回し、その巻枠に、組合わせて閉磁器を
構成するフェライトコア14の突合せ面15に必要な特
性を得るために最低限必要であった研磨面粗度の凹凸寸
法より小さな粒径のフェライトコア粉16をはさみ込む
ことで突合せ面を研磨しない状態の大きな凹凸があって
も、エアギャップを発生しない構成とする。
(57) [Summary] [Purpose] In transformers used in various electrical equipment,
The purpose is to reduce component costs and shorten delivery times by eliminating the need for polishing the butt-butt surfaces of ferrite cores that are assembled into pre-wound reel frames. [Structure] Cylindrical winding frame 10 with flanges 11 and 12 at the upper and lower ends
The winding wire 13 is wound on the winding frame, and the concavity and convexity dimension of the polished surface roughness that is the minimum required to obtain the necessary characteristics for the butting surface 15 of the ferrite core 14, which together constitute the closed porcelain, is applied to the winding frame. By sandwiching the ferrite core powder 16 with a small particle size, the structure is such that no air gap is generated even if the abutting surfaces have large irregularities without being polished.

Description

【考案の詳細な説明】[Detailed explanation of the idea]

【0001】0001

【産業上の利用分野】[Industrial application field]

本考案は各種の音響機器,映像機器,産業機器などに使用する変成器に関する ものである。 This invention relates to transformers used in various audio equipment, video equipment, industrial equipment, etc. It is something.

【0002】0002

【従来の技術】[Conventional technology]

近年、変成器はセットの軽薄短小化に伴い小型化,高性能化の要求が厳しい反 面、業界内での競争の激化によりコストは毎年低下する傾向にあり、変成器とし ては、高性能でありながら低コストの対応が必要となってきている。 In recent years, as transformers have become lighter, thinner, and smaller, there have been strict demands for smaller size and higher performance. On the other hand, due to intensifying competition within the industry, costs tend to decline every year, and Therefore, there is a need for high-performance yet low-cost solutions.

【0003】 以下に従来の変成器について説明する。 図6は従来の変成器の構造を示す組立て斜視図であり、図7は従来の変成器の 断面図、図8,図9はフェライトコアの突合せ面の拡大図である。図6において 、1はプラスチック製の筒状の巻枠であり、この巻枠1の上下端部には、それぞ れ上端鍔2と下端鍔3が設けられている。このような構成の巻枠1に、巻線4を 巻回したのち、EEやEI型で組合わせることにより、閉磁路を構成するフェラ イトコア5を挿入している。通常組込まれるフェライトコア5は、必要な特性を 引出す目的で、突合わされる突合せ面6を研磨加工してある。これは突合せ面6 の粗度レベルにより、フェライトコア5の特性に影響があるためであり、図9に 示すように研磨せず表面の凹凸が大きく粗度が粗い場合は、接合面のエアギャッ プ7が大きくなり、十分なフェライトコア5の特性を引出せない。また逆に図8 に示すように粗度がこまかい場合は、突合せ面6を突合わせても、エアギャップ 7が小さいため、高い特性を引出すことができる。一般的なフェライトコア5の 研磨後の突合せ表面粗度は、5〜10μmである。また高特性を引出すために特 殊研磨として鏡面研磨をほどこすことがある。この場合の突合せ表面粗度は2μ m程度であり、特性的にも通常研磨の5倍程度の高い特性が引出せるのである。0003 A conventional transformer will be explained below. FIG. 6 is an assembled perspective view showing the structure of a conventional transformer, and FIG. 7 is an assembled perspective view showing the structure of a conventional transformer. The cross-sectional views, FIGS. 8 and 9, are enlarged views of the abutting surfaces of the ferrite cores. In Figure 6 , 1 is a plastic cylindrical winding frame, and the upper and lower ends of this winding frame 1 are respectively An upper end collar 2 and a lower end collar 3 are provided. The winding 4 is attached to the winding frame 1 having such a configuration. After winding, it is combined with EE or EI type to form a closed magnetic circuit. Itocore 5 is inserted. The normally incorporated ferrite core 5 has the necessary characteristics. For the purpose of pulling out, the abutting surfaces 6 to be butted are polished. This is the butt surface 6 This is because the characteristics of the ferrite core 5 are affected by the roughness level of the ferrite core. As shown in the figure, if the surface is uneven and rough without polishing, the air gap on the joint surface may be The size of the core 7 becomes large, and sufficient characteristics of the ferrite core 5 cannot be brought out. Conversely, Figure 8 If the roughness is fine as shown in the figure, even if the butt surfaces 6 are brought together, there will be no air gap. 7 is small, high characteristics can be brought out. General ferrite core 5 The butt surface roughness after polishing is 5 to 10 μm. In addition, special Mirror polishing may be applied as special polishing. In this case, the butt surface roughness is 2μ m, and can bring out characteristics that are about 5 times higher than normal polishing.

【0004】0004

【考案が解決しようとする課題】 しかし、上記の従来の構成では、必要な特性を引出すために、フェライトコア 5の組合わされる突合せ面6を研磨し凹凸を特性の引出されるレベルまで、研磨 加工を行う必要があり、その結果、研磨コストの発生や、納期リードタイムが長 期化するなどの問題を有していた。[Problem that the idea aims to solve] However, in the above conventional configuration, in order to bring out the necessary characteristics, a ferrite core is used. Polish the abutting surface 6 where 5 is combined and polish the unevenness to a level where the characteristics are brought out. Machining is required, resulting in polishing costs and long delivery lead times. There were problems such as slowdown.

【0005】 本考案は、上記従来の問題点を解決するもので、フェライトコアの特性を引出 すための突合せ面研磨加工を、不要とすることで、低コストを図り、しかも、高 性能も実現できる変成器を提供することを目的とする。[0005] This invention solves the above conventional problems and brings out the characteristics of the ferrite core. By eliminating the need for polishing the butt surfaces for The purpose is to provide a transformer that can also achieve high performance.

【0006】[0006]

【課題を解決するための手段】[Means to solve the problem]

この目的を達成するために本考案の変成器は、巻線を巻回した巻枠に挿入され るフェライトコアの突合せ面に、極小粒径、すなわち、今まで必要な特性を得る のに最低限必要であった研磨面粗度の凹凸寸法より小さな粒径のフェライト粉を 付着させた上で突合せ面を突合せて組立て、フェライト粉を接合面ではさみ込む 構造で、閉磁路を構成するものである。 To achieve this purpose, the transformer of the present invention is inserted into a spool around which a winding is wound. The butt surface of the ferrite core has an ultra-small grain size, in other words, it has achieved the properties required up until now. Ferrite powder with a particle size smaller than the minimum roughness dimension of the polished surface required for After adhering, assemble the mating surfaces together and sandwich the ferrite powder between the joint surfaces. This structure forms a closed magnetic circuit.

【0007】[0007]

【作用】[Effect]

この技術的手段による作用は、突合わせ閉磁路を構成するフェライトコアの突 合せ面に、今まで行っていた研磨加工の研磨面粗度の凹凸寸法より小さな粒径の フェライト粉をはさみ込むことで、その極小粒径のフェライト粉が、接合面を突 合わせた際発生させていた、エアギャップの部分に入りエアギャップをなくし、 しかも、そのエアギャップを埋めた材料が、フェライトコアと同じ特性を持ち粒 径も今までの研磨加工の研磨面粗度の凹凸寸法より小さいフェライト粉であるた め、組合わされたフェライトコアの突合せ面に発生するエアギャップは、今まで よりも小さくなるのである。その結果として、突合わされるフェライトコアの突 合せ面は、研磨加工をしなくても、エアギャップの発生による、特性低下がない ばかりでなく、今までの研磨されたフェライトコア以上の高性能を得ることがで きるのである。 The effect of this technical means is that the ferrite core that constitutes the butted closed magnetic circuit The mating surface has a grain size that is smaller than the unevenness dimension of the polished surface roughness of the polishing process that has been performed so far. By sandwiching the ferrite powder, the ultra-small ferrite powder will protrude from the joint surface. It enters the air gap that was created when fitting, eliminating the air gap, Moreover, the material that filled the air gap has the same characteristics as the ferrite core and is grainy. The diameter of the ferrite powder is smaller than the unevenness of the polished surface roughness of conventional polishing processes. Therefore, the air gap that occurs at the butting surfaces of the combined ferrite cores has been It becomes smaller than . As a result, the butt of the ferrite cores that are butted Even without polishing the mating surfaces, there is no deterioration in characteristics due to air gaps. Not only that, but it is also possible to obtain higher performance than conventional polished ferrite cores. It is possible.

【0008】[0008]

【実施例】【Example】

以下、本考案の一実施例について図面を参照しながら説明する。図1は本考案 の実施例における組立て斜視図、図2は本考案の実施例における断面図、図3は 同フェライトコアの突合せ面の拡大図である。 An embodiment of the present invention will be described below with reference to the drawings. Figure 1 shows the present invention 2 is a sectional view of the embodiment of the present invention, and FIG. 3 is an assembled perspective view of the embodiment of the present invention. It is an enlarged view of the abutting surface of the same ferrite core.

【0009】 図1において、10は筒状の巻枠であり、この巻枠10の上下端には、それぞ れ上端鍔11と下端鍔12が設けられている。このような構成の巻枠10に巻線 13を巻回したのち組合わせることで閉磁路を構成するEE型のフェライトコア 14を挿入するのであるが、挿入するフェライトコア14の一方もしくは両方の 突合わされる突合せ面15には、極小粒径のフェライトコア粉16が付着させて ある。付着させてあるフェライトコア粉16の粒径は、今まで研磨してきたフェ ライトコア14の突合せ面15の凹凸の段差寸法より小さい粒径である必要があ る。通常の一般研磨加工では研磨表面の粗度で5〜10μm、高性能用,高特性 用研磨加工である鏡面研磨では2μm程度の凹凸があるため、要求される特性レ ベルにより許容できる粒径は異なるといえる。しかし粒径は小さければ小さいほ ど、コアの特性は向上することになる。[0009] In FIG. 1, 10 is a cylindrical winding frame, and the upper and lower ends of this winding frame 10 are An upper end collar 11 and a lower end collar 12 are provided. Winding wire on the winding frame 10 having such a configuration EE type ferrite core that forms a closed magnetic circuit by winding 13 and combining them. 14, but one or both of the ferrite cores 14 to be inserted Ferrite core powder 16 of extremely small particle size is attached to the abutting surfaces 15 to be butted. be. The particle size of the attached ferrite core powder 16 is different from that of the ferrite core powder that has been polished so far. The grain size must be smaller than the step dimension of the unevenness of the abutting surface 15 of the light core 14. Ru. In normal general polishing, the roughness of the polished surface is 5 to 10 μm, for high performance and high characteristics. Mirror polishing, which is a polishing process for industrial use, has irregularities of about 2 μm, so the required characteristic level cannot be met. It can be said that the allowable particle size differs depending on the level. However, the smaller the particle size, the smaller the particle size. However, the characteristics of the core will improve.

【0010】 また、フェライトコア粉16を付着する方法であるが、接合面15にエアギャ ップが発生することを防止するために必要な量のフェライトコア粉16を付着す る必要があるため、フェライトコア14の突合せ面15の形状を図4(a),( b)に示すようにわん曲した形状やV形状にする方法や図5に示すように桝状部 を設ける方法もある。また、フェライトコア粉16自体を、液状樹脂や液体とま ぜて突合せ面15に付着させる方法もある。0010 In addition, in the method of attaching the ferrite core powder 16, an air gap is applied to the joint surface 15. Attach the necessary amount of ferrite core powder 16 to prevent pops from occurring. 4(a), ( b) A curved or V-shaped method as shown in Fig. 5 or a box-shaped part as shown in Fig. There is also a way to set up In addition, the ferrite core powder 16 itself may be mixed with liquid resin or liquid. There is also a method of attaching it to the abutting surface 15.

【0011】 以上のようなフェライトコア14を巻線13を巻回した、巻枠10に挿入し、 フェライトコア14の突合せ面15でフェライトコア粉16をはさみ込み圧接さ せたのち、フェライトコア14を接着剤,スプリング,テープなどで固定するの である。[0011] Insert the ferrite core 14 as described above into the winding frame 10 around which the winding wire 13 is wound, Ferrite core powder 16 is sandwiched between the abutting surfaces 15 of the ferrite cores 14 and pressure welded. After that, fix the ferrite core 14 with adhesive, spring, tape, etc. It is.

【0012】 次に、この実施例における作用を説明する。フェライトコア粉16をフェライ トコア14の突合せ面15に付着させた上で突合せ面15を突合わせることで、 図3に示した拡大図のように、極小粒径のフェライトコア粉16は突合せ面15 の凹凸の中に入り込み、エアギャップを小さくすることができるようになる。突 合せ面15の凹凸部に入り込んだフェライトコア粉16は、フェライトコア14 と同材料であり空気に比べ、比較にならないほどの特性すなわち透磁率を持った 物質であるため、変成器の性能は格段に向上することとなる。また、突合せ面1 5の粗度についても、極小粒径のフェライトコア粉16が、突合せ面15の凹凸 を埋めるため、今までのように、突合せ面15の粗度により特性が変わることが なくなる。すなわち、突合せ面15を特性を引出す目的で研磨する必要がなくな るのである。0012 Next, the operation of this embodiment will be explained. Ferrite core powder 16 By attaching it to the abutting surface 15 of the tocoa 14 and then butting the abutting surface 15, As shown in the enlarged view in FIG. 3, the ferrite core powder 16 of extremely small particle size is It becomes possible to penetrate into the unevenness of the air gap and reduce the air gap. Tsuki The ferrite core powder 16 that has entered the uneven portion of the mating surface 15 is removed from the ferrite core 14. It is the same material as air, and has incomparable characteristics, namely magnetic permeability, compared to air. Since it is a material, the performance of the transformer will be significantly improved. Also, butt surface 1 Regarding the roughness of 5, the ferrite core powder 16 of extremely small particle size is In order to fill the gap, the characteristics may change depending on the roughness of the butt surface 15, as before. It disappears. In other words, there is no need to polish the abutting surface 15 for the purpose of bringing out its characteristics. It is.

【0013】[0013]

【考案の効果】[Effect of the idea]

以上のように本考案は、組合わされるフェライトコアの突合せ面に、極小粒径 のフェライトコア粉を付着して突合せ面を突合わせて圧接することにより、突合 せ面の研磨加工を不要とすることで、低コストの変成器とするばかりでなく、性 能的にも優れた変成器とすることができるのである。 As described above, the present invention has ultra-small grain size on the abutting surfaces of the ferrite cores to be combined. By attaching ferrite core powder and pressing the butt surfaces together, the butt By eliminating the need for polishing the face, it not only becomes a low-cost transformer, but also has improved performance. This makes it possible to create a transformer with excellent functionality.

【図面の簡単な説明】[Brief explanation of drawings]

【図1】本考案の一実施例における組立て斜視図[Fig. 1] An assembled perspective view of an embodiment of the present invention

【図2】本考案の一実施例における断面図[Fig. 2] Cross-sectional view of one embodiment of the present invention

【図3】同要部の拡大図[Figure 3] Enlarged view of the main parts

【図4】(a),(b)本考案の一実施例におけるフェ
ライトコアの形状を示す正面図
[Fig. 4] (a), (b) Front view showing the shape of a ferrite core in an embodiment of the present invention

【図5】他の実施例のフェライトコアの斜視図[Fig. 5] A perspective view of a ferrite core of another embodiment.

【図6】従来の変成器における組立て斜視図[Figure 6] Assembly perspective view of a conventional transformer

【図7】従来の変成器の断面図[Figure 7] Cross-sectional view of a conventional transformer

【図8】同要部の拡大図[Figure 8] Enlarged view of the main parts

【図9】同要部の拡大図[Figure 9] Enlarged view of the main parts

【符号の説明】[Explanation of symbols]

10 巻枠 11 上端鍔 12 下端鍔 13 巻線 14 フェライトコア 15 突合せ面 16 フェライトコア粉 10 Reel frame 11 Upper end tsuba 12 Lower end tsuba 13 Winding wire 14 Ferrite core 15 Butt surface 16 Ferrite core powder

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】中央に磁性材を挿入するためのプラスチッ
ク製の筒状部の巻枠と、その巻枠の両端に、それぞれ上
端鍔と下端鍔を備え、この巻枠に巻線を巻回し閉磁路を
構成するフェライトコアを、その組合わせる突合せ面
に、数μmの極小粒径のフェライト粉をはさみ込んだ状
態で組立てて構成した変成器。
Claim 1: A winding frame made of a cylindrical part made of plastic for inserting a magnetic material in the center, an upper end flange and a lower end flange at both ends of the winding frame, and a winding wire is wound around this winding frame. A transformer is constructed by assembling ferrite cores that form a closed magnetic circuit with ferrite powder of extremely small particle size of several micrometers sandwiched between their mating surfaces.
JP750191U 1991-02-20 1991-02-20 transformer Pending JPH04105520U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP750191U JPH04105520U (en) 1991-02-20 1991-02-20 transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP750191U JPH04105520U (en) 1991-02-20 1991-02-20 transformer

Publications (1)

Publication Number Publication Date
JPH04105520U true JPH04105520U (en) 1992-09-10

Family

ID=31899141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP750191U Pending JPH04105520U (en) 1991-02-20 1991-02-20 transformer

Country Status (1)

Country Link
JP (1) JPH04105520U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110970204A (en) * 2018-09-28 2020-04-07 太阳诱电株式会社 Coil component and electronic apparatus
US10867736B2 (en) 2017-03-31 2020-12-15 Taiyo Yuden Co., Ltd. Common mode choke coil, method for manufacturing the same, and circuit board

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10867736B2 (en) 2017-03-31 2020-12-15 Taiyo Yuden Co., Ltd. Common mode choke coil, method for manufacturing the same, and circuit board
US11640869B2 (en) 2017-03-31 2023-05-02 Taiyo Yuden Co., Ltd. Bonding structure of a sheet core and a pair of flange parts of a coil component
CN110970204A (en) * 2018-09-28 2020-04-07 太阳诱电株式会社 Coil component and electronic apparatus
JP2020057656A (en) * 2018-09-28 2020-04-09 太陽誘電株式会社 Coil component and electronic apparatus
US11670442B2 (en) 2018-09-28 2023-06-06 Taiyo Yuden Co., Ltd. Coil component and electronic device

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