JPH08107024A - Cover of surface mounting transformer - Google Patents
Cover of surface mounting transformerInfo
- Publication number
- JPH08107024A JPH08107024A JP26308694A JP26308694A JPH08107024A JP H08107024 A JPH08107024 A JP H08107024A JP 26308694 A JP26308694 A JP 26308694A JP 26308694 A JP26308694 A JP 26308694A JP H08107024 A JPH08107024 A JP H08107024A
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- piece
- cover
- core
- upper plate
- 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
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はプリント基板上にハンダ
接続される表面実装用トランスのカバーの改良に関し、
特にコイルを巻き回したボビンにコアを組み付ける際
に、接着剤等を用いずにボビンとコアとのガタ発生を防
止することを可能とした表面実装用トランスのカバーに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a cover for a surface mounting transformer which is soldered on a printed circuit board,
In particular, the present invention relates to a cover for a surface mounting transformer capable of preventing play between the bobbin and the core without using an adhesive or the like when the core is assembled to the bobbin around which the coil is wound.
【０００２】[0002]
【従来技術】プリント基板上に搭載する電子、電気部品
としては、表面実装方式のものが増えており、表面実装
部品はそのリード端子等を基板上の配線パターン上に載
置した状態でリフロー方式のハンダ付けによって固定さ
れる。図５は従来の表面実装用トランスの外観斜視図で
あり、図６(a) (b) 及び(c)は夫々ボビン、コア、カバ
ーの構成を示す図である。このトランス１は、ボビン２
と、コア３、３と、カバー４とから成り、ボビン２に２
つのコア３を組み付けた状態でこれらの部品をカバー４
にて固定することにより組付けが完了する。ボビン２
は、図６(a) に示す様にコイル５を巻き回すボビン部材
６と、ボビン部材６の軸方向両端部下部に夫々一体化し
た端子支持板７、７と、各端子支持板７から導出された
リード端子８と、ボビン部材６に巻き回したコイル５と
を備えている。2. Description of the Related Art As electronic and electrical parts mounted on a printed circuit board, surface mount type ones are increasing, and the surface mount type parts are reflow type with their lead terminals and the like placed on a wiring pattern on the board. It is fixed by soldering. FIG. 5 is an external perspective view of a conventional surface mount transformer, and FIGS. 6 (a), (b) and (c) are diagrams showing the configurations of a bobbin, a core and a cover, respectively. This transformer 1 is bobbin 2
And the cores 3 and 3 and the cover 4, and the bobbin 2 has 2
Cover these parts with the three cores 3 assembled.
Assembly is completed by fixing with. Bobbin 2
6A, the bobbin member 6 around which the coil 5 is wound, the terminal support plates 7 and 7 integrated under the axial end portions of the bobbin member 6, and the terminal support plates 7 are led out. The lead terminal 8 and the coil 5 wound around the bobbin member 6 are provided.
【０００３】各コア３は、図６(b) に示す様に背面板１
０と、背面板１０の両端部から夫々前方へ突出した側部
突片１０ａと、背面板１０の中央部から前方へ突出した
中央突片１０ｂとを備えた一体構造物であり、その平面
形状はＥ型をなしている。中央突片１０ｂは、上記ボビ
ン部材６の軸方向両端部の開口６ａに嵌合可能な形状を
有し開口６ａ内部に於て他方のコアの中央突片１０ｂの
端面と密着接触するように寸法設定されている。また、
各側部突片１０ａは、ボビン部材６の両側面をカバーす
るようにその形状が設定されると共に、他方のコアの側
部突片１０ａと端面同士で密着接触するように寸法設定
されている。カバー４は、図５、図６(c) に示す様に組
み付けられた状態にあるボビン２及びコア３の上面に密
着する上板１５と、上板１５の対向し合う２辺から夫々
下方へ略く字状に屈曲した屈曲片１６とから成り、両屈
曲片１６により各コア３の背面を挟圧することにより、
ボビン２とコア３を固定している。Each core 3 has a back plate 1 as shown in FIG. 6 (b).
0, a side projecting piece 10a projecting forward from both ends of the back plate 10, and a central projecting piece 10b projecting forward from the center part of the back plate 10 are an integral structure, and have a planar shape. Is E-shaped. The central projecting piece 10b has a shape that can be fitted into the openings 6a at both axial ends of the bobbin member 6, and is dimensioned so as to come into close contact with the end surface of the central projecting piece 10b of the other core inside the opening 6a. It is set. Also,
The shape of each side protrusion 10a is set so as to cover both side surfaces of the bobbin member 6, and the side protrusions 10a of the other core are dimensioned so as to be in close contact with each other. . The cover 4 includes an upper plate 15 that comes into close contact with the upper surfaces of the bobbin 2 and the core 3 in the assembled state as shown in FIGS. 5 and 6 (c), and downwards from two facing sides of the upper plate 15, respectively. It is composed of a bent piece 16 bent in a substantially V shape, and by sandwiching the back surface of each core 3 with both bent pieces 16,
The bobbin 2 and the core 3 are fixed.
【０００４】ところで、カバー４は直接にはコア３を挟
圧するものである為、カバー４とコア３との間にガタが
発生することは少ない。一方、ボビン２とコア３との間
は、部品公差の関係でどうしてもガタが発生しやすい。
また、図７は従来の表面実装用トランス１を吸着する操
作説明図であり、図示しないプリント基板上の配線パタ
ーン上にトランス１を搬送して位置決めする操作は、吸
着パッド２０によりカバーの上面中央部を吸着した後
で、プリント基板上に移載することにより行われる。従
来のトランスは上述の様にカバーとコアとの位置決め精
度が高いが、コアとボビンとの間にガタ付き（位置ず
れ）が生じ易い為、カバーだけを基準として配線パター
ン上にトランスを位置決めすると、ボビンのリード端子
８が本来の載置位置からずれた位置に載置される事態が
多発する。この結果、トランスの接続不良による作動不
良、脱落等の事態を発生する。このような不具合を解消
する為に従来はボビンとコアとの間を接着剤により固定
することが行われているが、人手による作業が増える
為、作業性が低下し、生産性の低下をもたらしている。By the way, since the cover 4 directly presses the core 3, there is little play between the cover 4 and the core 3. On the other hand, between the bobbin 2 and the core 3, rattling is apt to occur due to the component tolerance.
Further, FIG. 7 is an operation explanatory view of adsorbing the conventional surface mounting transformer 1, and the operation of transporting and positioning the transformer 1 on a wiring pattern on a printed circuit board (not shown) is performed by the adsorption pad 20 at the center of the upper surface of the cover. After the parts are sucked, they are transferred onto the printed board. As described above, the conventional transformer has high positioning accuracy between the cover and the core, but since the backlash (positional deviation) easily occurs between the core and the bobbin, positioning the transformer on the wiring pattern using only the cover as a reference. In many cases, the lead terminal 8 of the bobbin is placed at a position displaced from the original placement position. As a result, a situation such as a malfunction of the transformer due to a poor connection or a dropout occurs. In order to eliminate such a problem, the bobbin and the core are conventionally fixed with an adhesive, but since the manual work is increased, the workability is lowered and the productivity is lowered. ing.
【０００５】[0005]
【発明の目的】本発明は上記に鑑みてなされたものであ
り、ボビンにコアを組み付けた後に、コアとボビンをカ
バーによって挟圧保持して組付けを行う表面実装型のト
ランスにおいて、ボビンとコアとの間の組み付け精度に
起因して発生する両者のガタ付きと、それに起因する実
装位置のずれを防止することが出来る表面実装用トラン
スのカバーを提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in a surface mount type transformer in which a core is assembled to a bobbin, and then the core and the bobbin are clamped and held by a cover, the bobbin An object of the present invention is to provide a cover for a surface mounting transformer that can prevent looseness of both due to assembly accuracy with a core and displacement of a mounting position due to the looseness.
【０００６】[0006]
【発明の概要】上記目的を達成するため本発明は、多数
のリード端子を備え互いに平行配置された２つの端子支
持板と、該２つの端子支持板と直交するように配置され
て両端子支持板間を連結一体化するボビン部材とを備え
たボビンと、該ボビン部材外周に巻き回されるコイル
と、該ボビン部材の軸方向両端面の開口に夫々嵌合され
る平面形状がＥ型の２つのコアとを備えた表面実装用ト
ランスであって、該ボビン部材に組付けられた２つのコ
アの背面を挟圧することにより、ボビンと２つのコアと
を連結するカバーを備えたものに於て、上記カバーは、
上記ボビン部材及びコアの上面に密着する矩形の上板
と、該上板の対向し合う２辺から屈曲降下して上記２つ
のコアの背面を挟圧するコア挟圧片と、該上板の他の対
向し合う２辺から屈曲降下して上記２つの端子支持板間
に圧着するボビン圧着片とを備えていることを特徴とす
る。また、本発明の上記ボビン圧着片は、上記上板の上
記２辺から垂下する垂下片と、該垂下片の下辺中央部か
ら突出した圧着小片とから成り、該圧着小片は下方へ延
びる第１の片と、該第１の片の両側部から夫々上向きに
突出する弾性圧着片とから成ることを特徴とする。ま
た、本発明の上記ボビン圧着片は、上記上板の上記２辺
から垂下する垂下片と、該垂下片の下辺中央部から突出
した圧着小片とから成り、該圧着小片は下方へ向かうほ
ど幅が狭まるテーパー形状を有していることを特徴とす
る。SUMMARY OF THE INVENTION To achieve the above object, the present invention provides two terminal supporting plates provided with a large number of lead terminals and arranged in parallel with each other, and both terminal supporting plates arranged so as to be orthogonal to the two terminal supporting plates. A bobbin having a bobbin member for connecting and integrating the plates, a coil wound around the outer periphery of the bobbin member, and an E-shaped plane shape fitted in the openings at both axial end surfaces of the bobbin member. A surface mounting transformer having two cores, which includes a cover for connecting the bobbin and the two cores by sandwiching the back surfaces of the two cores assembled to the bobbin member. Then, the cover is
A rectangular upper plate that is in close contact with the upper surfaces of the bobbin member and the core, a core pressing piece that bends down from two opposing sides of the upper plate and presses the back surfaces of the two cores, and the other upper plate. And a bobbin crimping piece that is bent down from two opposite sides and crimped between the two terminal supporting plates. Also, the bobbin crimping piece of the present invention comprises a hanging piece that hangs from the two sides of the upper plate, and a crimping piece that projects from the center of the lower side of the hanging piece. The crimping piece extends downward. And an elastic crimping piece projecting upward from both side portions of the first piece, respectively. Further, the bobbin crimping piece of the present invention comprises a hanging piece that hangs down from the two sides of the upper plate, and a crimping piece that protrudes from the central portion of the lower side of the hanging piece. Is characterized by having a tapered shape.
【０００７】[0007]
【発明の実施例】以下、添付図面に示した実施例により
本発明を詳細に説明する。図１(a) (b) は、本発明の一
実施例の表面実装用トランスにおいてカバーを組み付け
る状態を示す図であり、(c) 及び(d) は要部拡大図であ
る。この表面実装用トランス３０は、コイル５を備えた
ボビン２に２つのコア３を組み付けたものに、カバー３
１を組み付けることにより完成する。ボビン２、コア３
の構成は、図６(a) 、(b) に示したものと同様であるた
め、同一部分には同一符号を付して重複した説明は省略
するが、カバー３１の構成が従来例と異なっている。カ
バー３１は、ボビン部材６及びコア３の上面のほぼ全体
を覆うに足る面積を有した略矩形の上板３５と、該上板
３５の対向し合う２辺から屈曲降下して上記各コア３の
背面を挟圧するコア挟圧片３６と、該上板の他の対向し
合う２辺から屈曲降下して上記２つの端子支持板７間に
圧着するボビン圧着片３７とを備えている構成が特徴的
である。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. FIGS. 1 (a) and 1 (b) are views showing a state in which a cover is assembled in a surface mounting transformer according to an embodiment of the present invention, and (c) and (d) are enlarged views of a main part. This surface-mounting transformer 30 includes a bobbin 2 having a coil 5 and two cores 3 attached thereto, and a cover 3
Complete by assembling 1. Bobbin 2, core 3
6A and 6B are the same as those shown in FIGS. 6A and 6B, the same parts are designated by the same reference numerals and the duplicated description will be omitted. However, the structure of the cover 31 is different from the conventional example. ing. The cover 31 has a substantially rectangular upper plate 35 having an area sufficient to cover substantially the entire upper surfaces of the bobbin member 6 and the core 3, and bends and descends from two opposing sides of the upper plate 35 so as to bend the cores 3. And a bobbin crimping piece 37 that bends down from the other two opposite sides of the upper plate and crimps between the two terminal support plates 7. It is characteristic.
【０００８】即ち、上板３５は、ボビン２とコア３との
結合体の上面をほぼ覆うに足る面積を有した略矩形の平
板であり、その下面でボビン及びコアの上面と密着可能
である。なお上板の角部は図示の様にいずれも凹状に切
り欠いてもよい。コア挟圧片３６は上記従来例のコア挟
圧片とほぼ同等の形状を有し、略く字状に屈曲した構成
を有することによりその角部で各コア３の背面を挟圧す
る。That is, the upper plate 35 is a substantially rectangular flat plate having an area sufficient to substantially cover the upper surface of the combined body of the bobbin 2 and the core 3, and the lower surface thereof can be in close contact with the upper surfaces of the bobbin and the core. . The corners of the upper plate may be notched in a concave shape as illustrated. The core pressing piece 36 has substantially the same shape as the core pressing piece of the above-mentioned conventional example, and has a configuration bent in a substantially V-shape to press the back surface of each core 3 at its corner.
【０００９】ボビン圧着片３７は、上板３５の上記他の
対向し合う２辺から垂下する幅広の垂下片３７ａと、該
垂下片３７ａの下辺中央部から突出した圧着小片３７ｂ
とから成り、該圧着小片３７ｂは下方へ延びる第１の片
３７ｂ’と、該第１の片３７’の両側部から夫々上向き
に突出する爪状の弾性圧着片３７ｂ”とから成る。カバ
ーは、ステンレス、アルミニウム等の金属材料により構
成する。The bobbin crimping piece 37 includes a wide hanging piece 37a hanging from the other two opposite sides of the upper plate 35, and a crimping small piece 37b protruding from the center of the lower side of the hanging piece 37a.
The crimping small piece 37b is composed of a first piece 37b 'extending downward, and a claw-shaped elastic crimping piece 37b "protruding upward from both sides of the first piece 37'. , Stainless steel, aluminum, or other metal material.
【００１０】カバー３１を図１(a) のようにボビンとコ
アとの結合体に対して組み付ける場合には、カバーを上
からかぶせることによりワンタッチで装着が完了する。
即ち、カバーをかぶせると、コア挟圧片３６がコア３の
背面に圧着すると同時に、ボビン圧着片３７の先端の圧
着小片３７ａがボビンを構成する２つの端子支持板７の
間の空隙に入り込み、爪状の弾性圧着片３７ｂ”が各端
子支持板７の対向し合う内壁に夫々圧着することによ
り、カバー３１がボビン２と固定される。When the cover 31 is assembled to the combination of the bobbin and the core as shown in FIG. 1 (a), the cover is covered from above to complete the mounting with one touch.
That is, when the cover is put on, the core pressing piece 36 is pressed against the back surface of the core 3, and at the same time, the crimping small piece 37a at the tip of the bobbin crimping piece 37 enters into the space between the two terminal supporting plates 7 forming the bobbin, The cover 31 is fixed to the bobbin 2 by crimping the claw-shaped elastic crimping pieces 37b ″ to the inner walls of the terminal supporting plates 7 which face each other.
【００１１】このように本実施例では、カバー３１をボ
ビンとコアの結合体に組み付ける際に、カバー３１とコ
ア３、カバーとボビンが夫々連結一体化されるため、カ
バーとコアとの間のガタ付きはもとより、ボビンとコア
との間のガタ付きもカバーによって解消される。従っ
て、図７に示したように、吸着パッドによりカバーの上
面中央部を吸着してプリント基板上の所定位置に移載す
れば、ボビンのリード端子８は正確に夫々の着座位置に
位置決めされることになる。また、各弾性圧着片３７”
は側方へ弾性変形するため、端子支持板７間の間隙の寸
法にバラツキがあったとしても、それに追随して変形
し、端子支持板に確実に挟着することができる。As described above, in this embodiment, when the cover 31 is assembled to the combined body of the bobbin and the core, the cover 31 and the core 3 and the cover and the bobbin are connected and integrated, respectively. Not only the play, but also the play between the bobbin and the core is eliminated by the cover. Therefore, as shown in FIG. 7, when the central portion of the upper surface of the cover is sucked by the suction pad and transferred to a predetermined position on the printed board, the lead terminals 8 of the bobbin are accurately positioned at their respective seating positions. It will be. Also, each elastic crimping piece 37 "
Since the elastically deforms laterally, even if there is a variation in the size of the gap between the terminal support plates 7, it can be deformed following it and can be reliably sandwiched between the terminal support plates.
【００１２】次に、図３(a) (b) 及び(c) は本発明の第
２実施例のトランスの組み立て手順説明図、要部拡大
図、装着部の拡大図であり、図２の実施例と同一部分に
ついては同一符号で示し、重複した説明は省略するが、
ボビン挟圧片４０（図２の３７に相当する）の形状が図
２の実施例と相違している。即ち、本実施例のボビン挟
圧片４０は、上板３５の２辺から夫々垂下する垂下片４
０ａと、該垂下片４０の下辺中央部から突出した圧着小
片４０ｂとから成り、該圧着小片４０ｂは下方へ向かう
ほど幅が狭まるテーパー形状を有している構成が特徴的
である。圧着小片４０ｂは、図３(c) に示す様にボビン
の端子支持板７の間の間隙に入り込み、端子支持板７の
対向し合う内壁にテーパー状の側辺で圧着する。圧着小
片４０ｂは、テーパー状の側辺にて端子支持板７の内壁
に圧着する為、端子支持板７間の間隙の寸法にバラツキ
があったとしても、それに追随して端子支持板に確実に
挟着することができる。この実施例のカバーの奏する効
果は、図２の実施例と同様である。なお、図３の実施例
の圧着小片４０ｂの先端部を図４に示す様にく字状に屈
曲させてもよい。Next, FIGS. 3 (a), (b) and (c) are explanatory views of the procedure for assembling the transformer according to the second embodiment of the present invention, an enlarged view of the main parts and an enlarged view of the mounting portion. The same parts as those in the embodiment are designated by the same reference numerals, and the duplicated description will be omitted.
The shape of the bobbin pinching piece 40 (corresponding to 37 in FIG. 2) is different from that of the embodiment shown in FIG. That is, the bobbin pinching piece 40 of the present embodiment has the hanging pieces 4 that respectively hang down from two sides of the upper plate 35.
0a and a crimping small piece 40b protruding from the central portion of the lower side of the hanging piece 40, and the crimping small piece 40b is characterized by a tapered shape in which the width narrows downward. As shown in FIG. 3 (c), the crimping small piece 40b enters the gap between the terminal supporting plates 7 of the bobbin and crimps the inner walls of the terminal supporting plate 7 facing each other with tapered side edges. Since the crimping small piece 40b is crimped to the inner wall of the terminal supporting plate 7 at the tapered side, even if there is variation in the size of the gap between the terminal supporting plates 7, the crimping small piece 40b can follow the contact and ensure the terminal supporting plate. It can be sandwiched. The effect of the cover of this embodiment is similar to that of the embodiment of FIG. The tip of the crimping piece 40b of the embodiment shown in FIG. 3 may be bent in a V shape as shown in FIG.
【００１３】[0013]
【発明の効果】以上のように本発明では、ボビンにコア
を組み付けた後に、コアとボビンをカバーによって挟圧
保持して組付けを行う表面実装型のトランスにおいて、
ボビンとコアとの間の組み付け精度に起因して発生する
両者のガタ付きと、それに起因する実装位置のずれを防
止することが出来る。即ち、本発明では、ボビンとコア
との結合体を連結するカバーに、ボビンの端子支持板間
に圧入する圧着小片を設けたので、ボビンとコアとの間
の位置決めを確実化して両者のガタ付きを防止できる。As described above, according to the present invention, in the surface mount type transformer in which the core and the bobbin are clamped and held by the cover after the core is assembled to the bobbin,
It is possible to prevent rattling of the bobbin and the core caused by the assembling accuracy of the bobbin and the displacement of the mounting position due to the looseness. That is, in the present invention, since the cover for connecting the bobbin-core combination is provided with the crimping small piece which is press-fitted between the terminal support plates of the bobbin, the bobbin and the core are reliably positioned to prevent the play of both. It can prevent sticking.
【図１】(a) (b) は、本発明の一実施例の表面実装用ト
ランスにおいてカバーを組み付ける状態を示す図であ
り、(c) 及び(d) は要部拡大図である。1A and 1B are views showing a state in which a cover is assembled in a surface mounting transformer according to an embodiment of the present invention, and FIGS. 1C and 1D are enlarged views of main parts.
【図２】図２(a) 乃至(d) は図１のカバーの構成を示す
平面図、斜視図、正面図、側面図である。2 (a) to 2 (d) are a plan view, a perspective view, a front view and a side view showing the configuration of the cover of FIG.
【図３】(a) (b) 及び(c) は本発明の他の実施例のカバ
ーの取り付け操作説明図、要部拡大図、及び圧着部の拡
大図。3 (a), (b), and (c) are explanatory views of a cover mounting operation of another embodiment of the present invention, an enlarged view of a main part, and an enlarged view of a crimping part.
【図４】図３の実施例の変形例の説明図。FIG. 4 is an explanatory view of a modification of the embodiment of FIG.
【図５】従来のトランスの外観斜視図。FIG. 5 is an external perspective view of a conventional transformer.
【図６】(a) は図５のトランスを構成するボビンの構成
説明図、(b) はコアの構成説明図、(c) はカバーの構成
説明図。6A is a configuration explanatory view of a bobbin constituting the transformer of FIG. 5, FIG. 6B is a configuration explanatory view of a core, and FIG. 6C is a configuration explanatory view of a cover.
【図７】従来のトランスの吸着による移載方法を示す
図。FIG. 7 is a diagram showing a conventional transfer method by adsorption of a transformer.
１ トランス、２ ボビン、３ コア、４ カバー、５
コイル、６ ボビン部材、７ 端子支持板、８ リー
ド端子、１０ 背面板、１０ａ 側部突片，１０ｂ 中
央突片，３０ トランス、３１ カバー、３５ 上板、
３６ コア挟圧片、３７ ボビン圧着片、３７ａ 垂下
片，３７ｂ 圧着小片，３７ｂ’ 第１の片，３７ｂ”
弾性圧着片，４０ａ 垂下片，４０ｂ 圧着小片，1 transformer, 2 bobbins, 3 cores, 4 covers, 5
Coil, 6 bobbin member, 7 terminal support plate, 8 lead terminal, 10 back plate, 10a side protrusion, 10b center protrusion, 30 transformer, 31 cover, 35 upper plate,
36 core pressing piece, 37 bobbin crimping piece, 37a hanging piece, 37b crimping small piece, 37b 'first piece, 37b "
Elastic crimping piece, 40a hanging piece, 40b crimping small piece,
Claims (3)
された２つの端子支持板と、該２つの端子支持板と直交
するように配置されて両端子支持板間を連結一体化する
ボビン部材とを備えたボビンと、該ボビン部材外周に巻
き回されるコイルと、該ボビン部材の軸方向両端面の開
口に夫々嵌合される平面形状がＥ型の２つのコアとを備
えた表面実装用トランスであって、該ボビン部材に組付
けられた２つのコアの背面を挟圧することにより、ボビ
ンと２つのコアとを連結するカバーを備えたものに於
て、 上記カバーは、上記ボビン部材及びコアの上面に密着す
る略矩形の上板と、該上板の対向し合う２辺から屈曲降
下して上記２つのコアの背面を挟圧するコア挟圧片と、
該上板の他の対向し合う２辺から屈曲降下して上記２つ
の端子支持板間に圧着するボビン圧着片とを備えている
ことを特徴とする表面実装用トランスのカバー。1. A two terminal supporting plate having a large number of lead terminals and arranged in parallel with each other, and a bobbin member arranged so as to be orthogonal to the two terminal supporting plates and connecting and integrating the two terminal supporting plates. For surface mounting, including a bobbin having a coil, a coil wound around the outer circumference of the bobbin member, and two cores having an E-shaped planar shape that are fitted into openings on both axial end surfaces of the bobbin member, respectively. A transformer, comprising a cover for connecting the bobbin and the two cores by sandwiching the back surfaces of the two cores assembled to the bobbin member, wherein the cover includes the bobbin member and A substantially rectangular upper plate that is in close contact with the upper surface of the core, and a core pinching piece that bends and descends from two opposing sides of the upper plate to pinch the back faces of the two cores.
A cover for a surface mounting transformer, comprising: a bobbin crimping piece which is bent down from the other two opposite sides of the upper plate and crimped between the two terminal supporting plates.
辺から垂下する垂下片と、該垂下片の下辺中央部から突
出した圧着小片とから成り、該圧着小片は下方へ延びる
第１の片と、該第１の片の両側部から夫々上向きに突出
する弾性圧着片とから成ることを特徴とする請求項１記
載の表面実装用トランスのカバー。2. The bobbin crimping piece comprises the upper plate having the above-mentioned 2 pieces.
It consists of a hanging piece that hangs from a side and a crimping piece that projects from the center of the lower side of the hanging piece. The crimping piece projects downward from the first piece and from both sides of the first piece. 2. The cover for a surface mounting transformer according to claim 1, wherein the cover is an elastic crimping piece.
辺から垂下する垂下片と、該垂下片の下辺中央部から突
出した圧着小片とから成り、該圧着小片は下方へ向かう
ほど幅が狭まるテーパー形状を有していることを特徴と
する請求項１記載の表面実装用トランスのカバー。3. The bobbin crimping piece is the upper plate 2
2. A hanging piece that hangs down from a side and a crimping piece that protrudes from the central portion of the lower side of the hanging piece, and the crimping piece has a taper shape that narrows in width downward. Cover for the listed surface mounting transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26308694A JPH08107024A (en) | 1994-10-03 | 1994-10-03 | Cover of surface mounting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26308694A JPH08107024A (en) | 1994-10-03 | 1994-10-03 | Cover of surface mounting transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08107024A true JPH08107024A (en) | 1996-04-23 |
Family
ID=17384641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26308694A Pending JPH08107024A (en) | 1994-10-03 | 1994-10-03 | Cover of surface mounting transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08107024A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6696909B2 (en) | 1999-12-13 | 2004-02-24 | Murata Manufacturing Co., Ltd. | Circuit module and method for mounting the same |
| JP2005294641A (en) * | 2004-04-01 | 2005-10-20 | Tdk Corp | Electronic component |
| JP2006196492A (en) * | 2005-01-11 | 2006-07-27 | Tdk Corp | Coil device |
| JP2011509400A (en) * | 2007-12-18 | 2011-03-24 | リエゾン、エレクトロニク−メカニク、エルウエム、ソシエテ、アノニム | Current sensor with laminated magnetic core |
| JP2013030581A (en) * | 2011-07-28 | 2013-02-07 | Denso Corp | Magnetic component unit |
| CN105469947A (en) * | 2016-01-08 | 2016-04-06 | 苏州大学 | High-temperature stability inductor |
-
1994
- 1994-10-03 JP JP26308694A patent/JPH08107024A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6696909B2 (en) | 1999-12-13 | 2004-02-24 | Murata Manufacturing Co., Ltd. | Circuit module and method for mounting the same |
| JP2005294641A (en) * | 2004-04-01 | 2005-10-20 | Tdk Corp | Electronic component |
| JP2006196492A (en) * | 2005-01-11 | 2006-07-27 | Tdk Corp | Coil device |
| JP4697655B2 (en) * | 2005-01-11 | 2011-06-08 | Ｔｄｋ株式会社 | Coil device |
| JP2011509400A (en) * | 2007-12-18 | 2011-03-24 | リエゾン、エレクトロニク−メカニク、エルウエム、ソシエテ、アノニム | Current sensor with laminated magnetic core |
| JP2013030581A (en) * | 2011-07-28 | 2013-02-07 | Denso Corp | Magnetic component unit |
| CN105469947A (en) * | 2016-01-08 | 2016-04-06 | 苏州大学 | High-temperature stability inductor |
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