JP4141887B2 - Power supply coil mounting structure - Google Patents

Power supply coil mounting structure Download PDF

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Publication number
JP4141887B2
JP4141887B2 JP2003114497A JP2003114497A JP4141887B2 JP 4141887 B2 JP4141887 B2 JP 4141887B2 JP 2003114497 A JP2003114497 A JP 2003114497A JP 2003114497 A JP2003114497 A JP 2003114497A JP 4141887 B2 JP4141887 B2 JP 4141887B2
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JP
Japan
Prior art keywords
coil
power supply
circuit board
printed circuit
mounting
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 - Lifetime
Application number
JP2003114497A
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Japanese (ja)
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JP2004319901A (en
Inventor
一成 浅野
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.)
Cosel Co Ltd
Original Assignee
Cosel 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 Cosel Co Ltd filed Critical Cosel Co Ltd
Priority to JP2003114497A priority Critical patent/JP4141887B2/en
Publication of JP2004319901A publication Critical patent/JP2004319901A/en
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Publication of JP4141887B2 publication Critical patent/JP4141887B2/en
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  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、電源装置に用いられるコイルとそのコイルが取り付けられた回路基板や接続用の導体板等との取付構造に関する。
【0002】
【従来の技術】
【特許文献1】
特開2002−345245号公報
電源装置等に用いられるコイルの取り付け構造は、例えば図6に示すように、所定の回路が形成されたプリント基板2にコイル4が固定され、特に大電力用の電源装置の場合、コイル4の2箇所の引き出し部5,6に、電源回路への接続部材として2本の導体板7,8がねじ9等で固定されていた。また、比較的小電力の場合、1本の引き出し部で良い場合もあり、より小電力の場合、接続用の端子は導体板を用いずに、リード線を用いたりプリント基板に形成された回路パターンの端子部に、直接はんだ付けして接続する場合もあった。
【0003】
【発明が解決しようとする課題】
上記従来の技術の場合、同じ電力の電源装置であっても、高圧小電流の電源装置の場合、導体板7,8を用いずに、回路基板2のパターンに直接接続するだけでよい場合がある。しかし、そのような場合でもコイル4の構成上比較的大電力の場合、導体板7,8を用いる設計となり、不必要に大きな構成となりコイル4自体やそれを用いた電源装置の小型化の妨げとなっていた。また、コイル4をプリント基板2に固定後に導体板7,8を引き出し部にねじ止めする場合、上側の引き出し部5と導体板7をねじ9でねじ止めした後、下側の引き出し部6と導体板9を固定するために、プリント基板2を反転させてねじ9を締め、再びプリント基板2を元に戻す作業が必要となる。また、プリント基板2には下側の引き出し部6と導体板8をねじ止めするための作業用の透孔が必要となり、プリント基板2の実装密度が低下し、この点からも電源装置の小型化の妨げとなっていた。さらに、コイル4の組み立て後にプリント基板2にコイル4のセットを取り付けることになる場合、導体板7,8等の取り付け精度が高くないと、予め組み立てた部材とプリント基板2等の部材との接続部が合わなくなるため、コイル4等の組み立て精度が要求され、組み立て時間及び工数が増加するものであった。
【0004】
この発明は、上記従来の問題点に鑑みてなされたものであり、簡単な構造で電源装置の電力や電流の大きさに関わりなく、最小限の構成で自由度の高い組み付けが可能となる電源装置用コイルの取付構造を提供することを目的とする。
【0005】
【課題を解決するための手段】
この発明は、金属薄板から成るコイルの巻回方向両端部であって、前記コイルの軸方向一端部に、プリント基板にはんだ付けされる基板取付引き出し部が一体に各々突設され、この基板取付引き出し部に対して、前記金属薄板両端部の前記コイル軸方向反対側の他端部に、接続用導体板に固定可能な上部引き出し部が一体に各々設けられ、前記基板取付引き出し部が前記プリント基板に形成された透孔に嵌合して前記プリント基板の回路にはんだ付けされて接続固定され、前記上部引き出し部が前記導体板にねじ止めにより接続固定可能に設けられ、前記上部引き出し部を選択的に使用可能とした電源装置用コイルの取付構造である。
【0006】
前記金属薄板の両端部の前記基板取付引出し部を回路基板にはんだ付けして基本構成とし、上部引き出し部を電源装置の電流値により選択的に用いるものである。
【0007】
【発明の実施の形態】
以下、この発明の実施形態について図面に基づいて説明する。図1,図2は、この発明の第一実施形態を示すものであり、この実施形態のコイルと他の実装部品との取付構造は、大電力・大電流出力を可能にした電源装置のトランス10とプリント基板12との取付構造である。このトランス10は、銅薄板によるコイル14を備え図示しないコアとともにプリント基板12に取付固定されている。
【0008】
トランス10のコイル巻回方向両端部であるコイル端15,16には、その幅方向の両端部のプリント基板12側に位置した端部に、プリント基板12の図示しない回路にはんだ付けされる基板取付引き出し部17,18が突設されている。プリント基板12には、はんだ付け部が周囲に設けられた透孔12aが設けられ、基板取付引き出し部17,18が嵌合可能に形成されている。また、基板取付引き出し部17,18と同じコイル端15,16であって、コイルの軸方向反対側の位置には、導体板21,22に、ねじ23,24でねじ止め固定可能な上部引き出し部25,26が、コイル端15,16から一体に突設されている。上部引き出し部25,26には透孔27,28が形成され、導体板21,22の図示しないねじ孔にねじ23,24が螺合して固定される。
【0009】
この実施形態の電源装置用コイルの取付構造の組み立て方法は、先ず、プリント基板12にトランス10を固定して、基板引き出し部17,18をプリント基板12の透孔12aに嵌合させて、はんだ付けする。次に、上部引き出し部25,26と導体板21,22をねじ23,24によりねじ止めする。
【0010】
この実施形態の電源装置用コイルの取付構造は、コイル14の基板取付引き出し部17,18が、プリント基板12にはんだ付けされて接続固定され、上部引き出し部25,26は、導体板21,22にねじ止めにより接続固定され、上部引き出し部25,26を選択的に使用可能としている。これにより、同じ電力の電源装置であっても、相対的に小電流の仕様の場合は基板取付引き出し部17,18を使用し、大電流の場合は、基板取付引き出し部17,18と上部引き出し部25,26の両方を使用し、その中間の場合は、上部引き出し部25,26のみを使用するという使い分けが、1種類のコイル取付構造で可能となる。また、組み立て上も、事前にコイルと導体板21,22とを固定する作業等が不要となり、プリント基板12上で取付固定作業が完了し、作業性がよい。
【0011】
次にこの発明の第二実施形態の電源装置用コイルの取付構造について、図3〜図5を基にして説明する。ここで前記実施形態と同様の部材は同一符号を付して説明を省略する。この実施形態は、一組のコイル30には2種類のコイル31,32が設けられ、一方のコイル31には上部引き出し部25,26がコイル端33,34に各々設けられている。また他方のコイル32のコイル端35,36には、基板取付引き出し部17,18が、コイル31の上部引き出し部25,26の反対側に突接されている。
【0012】
この実施形態の電源装置用コイルの取付構造によっても、前記実施形態と同様の効果を得ることができる。
【0013】
なお、この発明の電源装置用コイルの取付構造は、トランスのコイル以外にチョークコイルの取付構造でも良い。また、電源装置の実装部品やプリント基板は適宜変更可能なものであり、引き出し部の形状やその他の部材の形状も適宜設定し得るものである。一組のコイルとは、一つのコイルの場合の他、複数本のコイルを一つのトランス等に組み込んだ場合も含むものである。
【0014】
【発明の効果】
この発明の電源装置用コイルの取付構造によれば、仕様の異なる電源装置においても、同種の基本構造を有した電源装置用コイルの取付構造で対応することができ、部品の種類を減らすことができ、構造も簡単で製造も容易となり、コストダウンにもつながる。
【図面の簡単な説明】
【図1】 この発明の第一実施形態の電源装置用コイルの取付構造を示す部分破断斜視図である。
【図2】 この実施形態のコイルの斜視図である。
【図3】 この発明の第二実施形態の電源装置用コイルの取付構造に用いる各コイルの斜視図である。
【図4】 この実施形態の電源装置用コイルの取付構造に用いる各コイルを組み合わせた状態の斜視図である。
【図5】 図4のコイルのA−A’線断面の一方の端面図である。
【図6】 従来の電源装置用コイルの取付構造を示す概略側面図である。
【符号の説明】
10 トランス
12 プリント基板
14 コイル
15,16 コイル端
17,18 基板取付引き出し部
21,22 導体板
25,26 上部引き出し部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure of a coil used in a power supply device and a circuit board to which the coil is mounted, a conductor plate for connection, and the like.
[0002]
[Prior art]
[Patent Document 1]
JP, 2002-345245, A As for the attachment structure of the coil used for a power unit etc., as shown in Drawing 6, for example, coil 4 is fixed to printed circuit board 2 in which a predetermined circuit was formed, and especially a power supply for high power In the case of the apparatus, the two conductor plates 7 and 8 are fixed to the two lead portions 5 and 6 of the coil 4 as connecting members to the power supply circuit with screws 9 or the like. In addition, in the case of relatively low power, one lead portion may be sufficient. In the case of lower power, the connection terminal does not use a conductor plate but uses a lead wire or a circuit formed on a printed circuit board. In some cases, soldering was directly connected to the pattern terminals.
[0003]
[Problems to be solved by the invention]
In the case of the above conventional technique, even in the case of a power supply device having the same power, in the case of a power supply device having a high voltage and a small current, there is a case where it is only necessary to connect directly to the pattern of the circuit board 2 without using the conductor plates 7 and 8 is there. However, even in such a case, when the power of the coil 4 is relatively large, the conductor plates 7 and 8 are designed to be unnecessarily large and hinder the miniaturization of the coil 4 itself and the power supply device using the same. It was. Further, when the conductor plates 7 and 8 are screwed to the lead portion after the coil 4 is fixed to the printed circuit board 2, the upper lead portion 5 and the conductor plate 7 are screwed with screws 9, and then the lower lead portion 6 and In order to fix the conductor plate 9, it is necessary to reverse the printed circuit board 2, tighten the screws 9, and return the printed circuit board 2 again. Further, the printed circuit board 2 requires work through holes for screwing the lower drawing portion 6 and the conductor plate 8, and the mounting density of the printed circuit board 2 is lowered. It was a hindrance. Further, when the set of the coil 4 is to be attached to the printed circuit board 2 after the assembly of the coil 4, the connection between the preassembled member and the member such as the printed circuit board 2 is required unless the mounting accuracy of the conductor plates 7 and 8 is high. Since the parts do not fit, the assembly accuracy of the coil 4 and the like is required, and the assembly time and man-hour increase.
[0004]
The present invention has been made in view of the above-described conventional problems, and has a simple structure and can be assembled with a high degree of freedom with a minimum configuration regardless of the power and current magnitude of the power supply device. It aims at providing the attachment structure of the coil for apparatuses.
[0005]
[Means for Solving the Problems]
In the present invention, both ends of a coil made of a thin metal plate are wound in the winding direction, and at one end in the axial direction of the coil, a board mounting / drawing portion to be soldered to a printed circuit board is integrally projected. against the drawer part, the other end portion of the coil axis direction opposite the sheet metal at both ends, the upper lead portion securable to the conductive plate for connection are respectively formed integrally, the substrate mounting lead portions the The upper lead portion is fitted and fixed to the circuit of the printed board by being fitted into a through hole formed in the printed board, and the upper lead portion is provided so as to be connected and fixed to the conductor plate by screwing. It is the attachment structure of the coil for power supply devices which can be used selectively.
[0006]
The board mounting / drawing portions at both ends of the thin metal plate are soldered to a circuit board to form a basic structure, and the upper drawing portion is selectively used according to the current value of the power supply device .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment of the present invention. The mounting structure of the coil and other mounting parts of this embodiment is a transformer of a power supply device that enables high power and large current output. 10 and a printed circuit board 12. The transformer 10 includes a coil 14 made of a copper thin plate and is fixedly attached to the printed circuit board 12 together with a core (not shown).
[0008]
The coil ends 15 and 16, which are both ends in the coil winding direction of the transformer 10, are boards that are soldered to a circuit (not shown) of the printed board 12 at the ends located on the printed board 12 side at both ends in the width direction. Mounting drawer portions 17 and 18 are provided in a protruding manner. The printed circuit board 12 is provided with a through-hole 12a having a soldering portion provided in the periphery, and the board mounting lead portions 17 and 18 are formed so as to be fitted. Also, the upper ends of the coil ends 15 and 16 that are the same as the board mounting / drawing portions 17 and 18 can be fixed to the conductor plates 21 and 22 with screws 23 and 24 at positions opposite to the axial direction of the coils. The portions 25 and 26 are integrally projected from the coil ends 15 and 16. Through holes 27 and 28 are formed in the upper lead portions 25 and 26, and screws 23 and 24 are screwed and fixed to screw holes (not shown) of the conductor plates 21 and 22.
[0009]
In the method of assembling the power supply device coil mounting structure according to this embodiment, first, the transformer 10 is fixed to the printed circuit board 12, and the board drawing portions 17 and 18 are fitted into the through holes 12 a of the printed circuit board 12. Attach. Next, the upper lead portions 25 and 26 and the conductor plates 21 and 22 are screwed with screws 23 and 24.
[0010]
The power supply device coil mounting structure of this embodiment is such that the board mounting lead portions 17 and 18 of the coil 14 are soldered and fixed to the printed circuit board 12, and the upper lead portions 25 and 26 are the conductor plates 21 and 22. to be connected and fixed by screws, and the upper lead portions 25, 26 can be selectively used. As a result, even if the power supply device has the same power, the board mounting lead portions 17 and 18 are used in the case of relatively small current specifications, and the board mounting lead portions 17 and 18 and the upper drawer are used in the case of a large current. In the case of using both of the portions 25 and 26 and in the middle, it is possible to use only the upper lead portions 25 and 26 with one type of coil mounting structure. In addition, work for fixing the coil and the conductive plates 21 and 22 in advance is not necessary for assembly, and the mounting and fixing work on the printed circuit board 12 is completed, so that workability is good.
[0011]
Next, a power supply device coil mounting structure according to a second embodiment of the present invention will be described with reference to FIGS. Here, the same members as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. In this embodiment, a set of coils 30 is provided with two types of coils 31 and 32, and one coil 31 is provided with upper lead portions 25 and 26 at coil ends 33 and 34, respectively. Further, the board mounting lead portions 17 and 18 are in contact with the coil ends 35 and 36 of the other coil 32 on the opposite side of the upper lead portions 25 and 26 of the coil 31.
[0012]
The effect similar to the said embodiment can be acquired also by the attachment structure of the coil for power supply devices of this embodiment.
[0013]
The power supply device coil mounting structure of the present invention may be a choke coil mounting structure in addition to the transformer coil. Further, the mounting component and the printed board of the power supply device can be changed as appropriate, and the shape of the drawer portion and the shape of other members can also be set as appropriate. A set of coils includes not only one coil but also a case where a plurality of coils are incorporated in one transformer or the like.
[0014]
【The invention's effect】
According to the power supply device coil mounting structure of the present invention, power supply devices having different specifications can be handled by the power supply device coil mounting structure having the same basic structure, and the types of components can be reduced. The structure is simple and easy to manufacture, leading to cost reduction.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view showing an attachment structure of a coil for a power supply device according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a coil according to this embodiment.
FIG. 3 is a perspective view of each coil used in the power supply device coil mounting structure of the second embodiment of the present invention.
FIG. 4 is a perspective view of a state in which coils used in the power supply device coil mounting structure of this embodiment are combined.
FIG. 5 is one end view of the cross section taken along the line AA ′ of the coil of FIG. 4;
FIG. 6 is a schematic side view showing a conventional mounting structure of a coil for a power supply device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Transformer 12 Printed circuit board 14 Coil 15,16 Coil end 17,18 Substrate attachment drawer part 21,22 Conductor board 25,26 Upper drawer part

Claims (1)

金属薄板から成るコイルの巻回方向両端部であって、前記コイルの軸方向一端部に、プリント基板にはんだ付けされる基板取付引き出し部が一体に各々突設され、この基板取付引き出し部に対して、前記金属薄板両端部の前記コイル軸方向反対側の他端部に、接続用導体板に固定可能な上部引き出し部が一体に各々設けられ、前記基板取付引き出し部が前記プリント基板に形成された透孔に嵌合して前記プリント基板の回路にはんだ付けされて接続固定され、前記上部引き出し部が前記導体板にねじ止めにより接続固定可能に設けられ、前記上部引き出し部を選択的に使用可能としたことを特徴とする電源装置用コイルの取付構造。 A winding direction both end portions of the coil consisting of sheet metal, one axial end portion of the coil, a substrate attaching lead portions to be soldered are respectively integrally projecting to the printed circuit board, to the board mounting lead portions Te, the second end of the coil axis direction opposite to the metal thin plate end portions, the upper lead portion securable to the conductive plate for connection are provided each integrally formed the substrate mounting lead portions on the printed circuit board The upper lead-out part is provided so as to be connected and fixed to the conductor plate by screwing , and the upper lead-out part is selectively fitted. A structure for mounting a coil for a power supply device, characterized by being usable.
JP2003114497A 2003-04-18 2003-04-18 Power supply coil mounting structure Expired - Lifetime JP4141887B2 (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003114497A JP4141887B2 (en) 2003-04-18 2003-04-18 Power supply coil mounting structure

Publications (2)

Publication Number Publication Date
JP2004319901A JP2004319901A (en) 2004-11-11
JP4141887B2 true JP4141887B2 (en) 2008-08-27

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