JP4797337B2 - Bobbins, inductances, transformers, and pulse generators - Google Patents

Bobbins, inductances, transformers, and pulse generators Download PDF

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JP4797337B2
JP4797337B2 JP2004156850A JP2004156850A JP4797337B2 JP 4797337 B2 JP4797337 B2 JP 4797337B2 JP 2004156850 A JP2004156850 A JP 2004156850A JP 2004156850 A JP2004156850 A JP 2004156850A JP 4797337 B2 JP4797337 B2 JP 4797337B2
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winding
notch
transformer
bobbin
rectangular
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JP2005340482A (en
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智之 中野
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

本発明は、ボビン、インダクタンス、トランス、およびパルス発生装置に関するものである。   The present invention relates to a bobbin, an inductance, a transformer, and a pulse generator.

図２４（ａ）（ｂ）では、従来の分割型のボビンＢ’を用いて高圧トランスを構成しており、ボビンＢ’は、円筒状の巻回部１０１と、巻回部１０１を巻回軸方向に３つの巻回領域１０１ａ，１０１ａ，．．．に分割する３つの鍔部１０２，１０２，．．．および１つの鍔部１０３とを備える。鍔部１０２，１０３は円板状に形成されて巻回部１０１の外周面に立設しており、鍔部１０２，１０３は高電圧領域を分割するために巻回部１０１を適宜分割する（図２４（ｂ）中では３分割）ために設けられる。３つの鍔部１０２は、巻回部１０１の一端から巻回領域１０１ａを挟んで巻回軸方向に並設され、巻回部１０１の他端には鍔部１０３が設けられる。巻回部１０１はその巻回軸方向には貫通孔１０１ｂが形成されている。鍔部１０２は、外周縁からボビンの巻回中心方向に切欠き部１０２ａを設けて、鍔部１０２を挟んで互いに隣り合う巻回領域１０１ａは切欠き部１０２ａを介して連続している。   24 (a) and 24 (b), a high-voltage transformer is configured by using a conventional divided bobbin B ', and the bobbin B' winds around the cylindrical winding part 101 and the winding part 101. Three winding regions 101a, 101a,. . . Are divided into three flanges 102, 102,. . . And one collar portion 103. The flange portions 102 and 103 are formed in a disc shape and are erected on the outer peripheral surface of the winding portion 101, and the flange portions 102 and 103 appropriately divide the winding portion 101 in order to divide the high voltage region ( This is provided for 3 divisions in FIG. The three flange portions 102 are arranged in parallel in the winding axis direction from one end of the winding portion 101 with the winding region 101 a interposed therebetween, and a flange portion 103 is provided at the other end of the winding portion 101. The winding portion 101 has a through hole 101b in the winding axis direction. The flange portion 102 is provided with a notch 102a from the outer peripheral edge toward the bobbin winding center, and winding regions 101a adjacent to each other across the flange portion 102 are continuous via the notch 102a.

そして、巻回領域１０１ａには２次巻線１２０が巻回されており、最も低圧側の巻回領域１０１ａの２次巻線１２０の外側には１次巻線１１０が巻回されている。ここで、１次巻線１１０および２次巻線１２０には丸線が用いられ、１次巻線１１０は３〜６ターン、２次巻線１２０は１００〜４００ターンに巻回されており、１次巻線１１０に電流が流れると２次巻線１２０に高電圧が発生し、１次巻線１１０および２次巻線１２０を巻回したボビンＢ’をエポキシ等の樹脂で封止して高電圧トランスを構成している。（例えば、特許文献１参照）。   The secondary winding 120 is wound around the winding region 101a, and the primary winding 110 is wound outside the secondary winding 120 of the winding region 101a on the lowest voltage side. Here, round wires are used for the primary winding 110 and the secondary winding 120, the primary winding 110 is wound in 3 to 6 turns, and the secondary winding 120 is wound in 100 to 400 turns, When a current flows through the primary winding 110, a high voltage is generated in the secondary winding 120, and the bobbin B ′ around which the primary winding 110 and the secondary winding 120 are wound is sealed with a resin such as epoxy. It constitutes a high voltage transformer. (For example, refer to Patent Document 1).

また、図２５に示すように、略円柱状に形成されたロッド型の磁気コア２３０に平角巻線を直接エッジワイズ巻することで１次巻線２１０および２次巻線２２０を形成した高圧トランスもある。この場合、平角巻線をエッジワイズ巻にしているので、丸線を図２４のように分割整列巻にする場合に比べて、線積率は向上し、高圧トランスの体積に対する巻線の占める割合は小さくなる。さらに、平角巻線は、低圧側から一定幅で（すなわち、平角巻線の厚み分だけずれて）高圧側へ１列に巻回されていくため、隣り合う巻線間には最大でも１ターン分の電位差しかなく、図２４のボビンＢ’に丸線の積層巻を施す場合のように、巻線内の電位が大きく異なる箇所が互いに近接することはない。したがって、ボビンＢ’のように分割用の鍔１０２，１０３は必要なく、線積率はさらに向上する。（例えば、特許文献２参照）。
特開２００１−２５７０８７号公報（段落番号［００１０］〜［００２１］、図１〜図４） 特開２００２−９３６３５号公報（段落番号［００３１］、［００３２］、図１２） Further, as shown in FIG. 25, a high-voltage transformer in which a primary winding 210 and a secondary winding 220 are formed by directly edgewise winding a rectangular winding on a rod-shaped magnetic core 230 formed in a substantially cylindrical shape. There is also. In this case, since the rectangular winding is edgewise wound, the line area ratio is improved as compared with the case where the round wire is divided and aligned as shown in FIG. Becomes smaller. Further, since the rectangular winding is wound in a single line from the low voltage side to the high voltage side with a constant width (ie, shifted by the thickness of the rectangular coil), at most one turn between adjacent windings. Unlike the case where the round winding of the bobbins is applied to the bobbin B ′ in FIG. 24, the portions in which the potentials in the windings are greatly different do not approach each other. Therefore, unlike the bobbin B ′, the split collars 102 and 103 are not necessary, and the line product ratio is further improved. (For example, refer to Patent Document 2).
JP 2001-257087 A (paragraph numbers [0010] to [0021], FIGS. 1 to 4) JP 2002-93635 A (paragraph numbers [0031], [0032], FIG. 12)

図２４に示す高圧トランスでは、平角巻線２０を隣り合う巻回領域１ａに移行させる際に、鍔部１０２の外周縁からボビンの巻回中心方向に設けた切欠き部１０２ａを介してスムーズに移行させることができないという問題があった。   In the high-voltage transformer shown in FIG. 24, when the rectangular winding 20 is transferred to the adjacent winding region 1a, the outer periphery of the flange portion 102 smoothly passes through the notch portion 102a provided in the bobbin winding center direction. There was a problem that it could not be migrated.

さらに、２次巻線１２０をランダムに巻回すると、電位差の大きいターンが近接した場合に絶縁不良が発生するが、図２４に示す高圧トランスでは、高絶縁性を保つために、２次巻線１２０を整列巻している。しかし、整列巻をしていても、巻線が段落ちした状態で巻回された場合には、ランダムに巻回した場合と同様に絶縁不良の原因となっていた。   Further, when the secondary winding 120 is wound at random, an insulation failure occurs when a turn having a large potential difference comes close. In the high-voltage transformer shown in FIG. 120 are aligned and wound. However, even when aligned winding is performed, if the winding is wound in a stepped state, it causes an insulation failure as in the case of random winding.

そして、図２６に示すように、丸線からなる２次巻線１２０を段毎に互い違いに巻回した場合には、デッドスペースが大きく、線積率はよくない（小さい）。したがって線積率が小さいために、所定の昇圧比を実現する巻回数では、直流抵抗値が大きくなるという問題があった。   And as shown in FIG. 26, when the secondary winding 120 which consists of a round wire is wound by turns for every stage, dead space is large and a line area ratio is not good (small). Therefore, since the line product ratio is small, there is a problem that the direct current resistance value becomes large at the number of turns that realizes a predetermined step-up ratio.

また、図２５に示す高圧トランスのように、平角巻線を１重にエッジワイズ巻した場合、所定の昇圧比を得るためには、トランスを長い形状にする必要がある。さらに、平角巻線を幅広面が対向するように巻回するエッジワイズ巻の場合、平角巻線の外側は引き伸ばされながら巻回されるので、平角巻線の外側の絶縁皮膜も引き伸ばされる。したがって、絶縁皮膜が薄くなったり、絶縁皮膜に亀裂が入って絶縁性能が低下したり、あるいは巻回半径を一定以上小さくできずに小型化できないという問題が生じた。   Further, when the rectangular winding is single edgewise wound as in the high voltage transformer shown in FIG. 25, the transformer needs to be long in order to obtain a predetermined step-up ratio. Furthermore, in the case of edgewise winding in which the flat winding is wound so that the wide surfaces face each other, the outer side of the flat winding is wound while being stretched, so that the insulating film on the outer side of the flat winding is also stretched. Therefore, there arises a problem that the insulating film becomes thin, the insulating film cracks and the insulating performance is lowered, or the winding radius cannot be reduced more than a certain value and the size cannot be reduced.

本発明は、上記事由に鑑みてなされたものであり、その目的は、巻線を隣り合う巻回領域に移行させる際にスムーズに移行させることができるとともに、巻線の線積率がよく、小型化、巻線の低抵抗化が可能なボビン、インダクタンス、トランス、およびパルス発生装置を提供することにある。   The present invention has been made in view of the above-mentioned reasons, and its purpose is to smoothly shift the winding when transferring to the adjacent winding region, and the line area ratio of the winding is good, An object of the present invention is to provide a bobbin, an inductance, a transformer, and a pulse generator capable of reducing the size and reducing the resistance of a winding.

請求項１の発明は、平角巻線を巻回する巻回部と、前記巻回部の外周面に巻回方向に沿って立設して前記巻回部を巻回軸方向に複数の巻回領域に分割する鍔部と、互いに隣り合う巻回領域を連続させるように前記鍔部に形成された切欠き部とを備えるボビンにおいて、前記切欠き部は前記巻回部の外周の接線方向に形成され、巻回時に隣の巻回領域に移行させるために前記切欠き部に挿入された平角巻線は前記巻回部の外周の接線方向に導出され、巻回領域の幅が、平角巻線の幅広面と略同様の幅に形成され、各巻回領域において、平角巻線はその幅広面が対向するように１列に重ねて巻回され、前記巻回部は、巻回軸方向からみた断面形状が、円形状の外周の一部に平面部を設けた形状となり、前記切欠き部は、前記鍔部の外周縁から前記平面部に接し、前記切欠き部を介して導出した平角巻線は前記平面部に接することを特徴とする。 The invention according to claim 1 is a winding part for winding a rectangular winding, and a plurality of windings in the winding axis direction, wherein the winding part is erected on the outer peripheral surface of the winding part along the winding direction. A bobbin comprising a collar part divided into winding areas and a notch part formed in the collar part so that adjacent winding areas are continuous, wherein the notch part is a tangential direction of the outer periphery of the winding part The rectangular winding inserted into the notch portion for transition to the adjacent winding region during winding is led out in the tangential direction of the outer periphery of the winding portion, and the width of the winding region is The winding is formed in a width substantially the same as the wide surface of the winding, and in each winding region, the rectangular winding is wound in a row so that the wide surfaces face each other, and the winding portion is in the winding axis direction. The cross-sectional shape seen from the shape is a shape in which a flat portion is provided on a part of a circular outer periphery, and the notch is formed from the outer periphery of the flange. Surface in contact, flat Kakumaki line derived via the notch is characterized by contacting the flat portion.

この発明によれば、巻回領域の移行時に平角巻線は巻回部の外周の接線方向に導出されるので、平角巻線を隣り合う巻回領域にスムーズに移行させることができる。また、平角巻線を各巻回領域に重ねて巻回することにより、従来の丸線の整列巻と比較して、巻線の線積率を向上させることができて直流抵抗値を低減させることが可能となり、小型化を図ることができる。さらに、丸線の整列巻で発生する段落ちや巻乱れがないので、巻回工程を容易に実施することができ、信頼性の高い絶縁性能を確保することができる。また、巻回部を巻線機に容易に固定でき、巻回作業を容易にしながら、巻回部内に配する磁性体の断面積を大きくすることができる。 According to the present invention, since the rectangular winding is led out in the tangential direction of the outer periphery of the winding part at the time of transition of the winding region, the rectangular winding can be smoothly transferred to the adjacent winding region. In addition, by winding a rectangular winding on each winding region, the line area ratio of the winding can be improved and the DC resistance value can be reduced as compared with the conventional round winding. Therefore, it is possible to reduce the size. Furthermore, since there are no step-downs or winding disturbances that occur in the aligned winding of round wires, the winding process can be easily performed, and highly reliable insulation performance can be ensured. Moreover, the winding part can be easily fixed to the winding machine, and the cross-sectional area of the magnetic material disposed in the winding part can be increased while facilitating the winding operation.

請求項２の発明は、請求項１において、前記切欠き部は前記鍔部の外周縁に開口部を形成し、前記切欠き部を巻回軸方向からみた前記開口部近傍の形状は曲線で構成されることを特徴とする。   According to a second aspect of the present invention, in the first aspect, the notch portion has an opening formed on an outer peripheral edge of the flange portion, and the shape in the vicinity of the opening portion when the notch portion is viewed from the winding axis direction is a curve. It is characterized by being configured.

この発明によれば、平角巻線を隣の巻回領域に移行させる際に、平角巻線に急峻な屈折部が発生しないので、平角巻線の絶縁被覆に大きなストレスを与えることがない。   According to the present invention, when the rectangular winding is moved to the adjacent winding region, a sharp refracting portion does not occur in the rectangular winding, so that a large stress is not applied to the insulating coating of the rectangular winding.

請求項３の発明は、請求項１において、前記切欠き部は前記鍔部の外周縁に開口部を形成し、前記切欠き部を巻回軸方向からみた前記開口部近傍の形状はテーパ状に構成されることを特徴とする。   According to a third aspect of the present invention, in the first aspect, the notch portion has an opening formed on an outer peripheral edge of the flange portion, and the shape in the vicinity of the opening portion when the notch portion is viewed from the winding axis direction is tapered. It is comprised by this.

この発明によれば、請求項２と同様の効果を奏する。 According to the present invention, the same effect as that of claim 2 is obtained .

請求項４の発明は、請求項１乃至３いずれかにおいて、前記切欠き部の互いに対向する内壁面のうち少なくとも一方は、鍔部の厚み方向に対して斜めに形成されることを特徴とする。 According to a fourth aspect of the present invention, in any one of the first to third aspects, at least one of the mutually facing inner wall surfaces of the notch is formed obliquely with respect to the thickness direction of the flange. .

この発明によれば、平角巻線を無理なく隣の巻回領域に移行させることができる。 According to the present invention, the rectangular winding can be shifted to the adjacent winding region without difficulty .

請求項５の発明は、請求項１乃至４いずれか記載のボビンの巻回部に巻回軸方向に凹部を設け、該凹部内に磁性体を配置したことを特徴とする。 A fifth aspect of the present invention is characterized in that a concave portion is provided in the winding axis direction in the winding portion of the bobbin according to any one of the first to fourth aspects, and a magnetic body is disposed in the concave portion.

この発明によれば、請求項１乃至４いずれかと同様の効果を奏するインダクタンスを提供できるとともに、凹部１に挿入される磁性体は凹部の底面に当接することで所定の位置に固定され、組立性が向上する。 According to the present invention, it is possible to provide an inductance having the same effect as any one of the first to fourth aspects, and the magnetic body inserted into the concave portion 1 is fixed at a predetermined position by contacting the bottom surface of the concave portion. Will improve.

請求項６の発明は、請求項５において、前記凹部の底面に挿通孔を設けたことを特徴とする。 The invention of claim 6 is characterized in that, in claim 5, an insertion hole is provided in the bottom surface of the recess.

この発明によれば、周囲を樹脂で充填する際に、凹部内の空気層（空隙）を全て、貫通孔を介して凹部外部へ排出することができる。   According to this invention, when the periphery is filled with the resin, the entire air layer (void) in the recess can be discharged to the outside of the recess through the through hole.

請求項７の発明は、請求項５または６記載のインダクタンスが備える磁性体を前記巻回部より巻回軸方向の少なくとも一方向に長くし、前記平角巻線の外側にリード線を巻回したことを特徴とする。 According to a seventh aspect of the present invention, the magnetic body provided in the inductance according to the fifth or sixth aspect is made longer than the winding portion in at least one direction of the winding axis direction, and a lead wire is wound outside the rectangular winding. It is characterized by that.

この発明によれば、請求項１乃至６いずれかと同様の効果を奏するトランスを提供できるとともに、１次巻線と２次巻線との結合度を向上させることができる。 According to the present invention, it is possible to provide a transformer having the same effect as any one of claims 1 to 6 and to improve the degree of coupling between the primary winding and the secondary winding.

請求項８の発明は、請求項７において、前記リード線は、前記巻回部の中心から前記磁性体を長くした方向に偏倚して巻回されることを特徴とする。 The invention of claim 8 is characterized in that, in claim 7, the lead wire is wound while being biased in a direction in which the magnetic body is lengthened from the center of the winding portion.

この発明によれば、１次巻線と２次巻線との結合度を下げることなく、低圧線である１次巻線を２次巻線の高圧側から遠ざけることができ、１次巻線に印加される高圧電界を軽減することができる。   According to the present invention, the primary winding that is a low-voltage wire can be moved away from the high-voltage side of the secondary winding without lowering the degree of coupling between the primary winding and the secondary winding. The high-voltage electric field applied to can be reduced.

請求項９の発明は、請求項１乃至４いずれか記載のボビンを用いたトランスまたは請求項５または６記載のインダクタンスを用いたトランスまたは請求項７または８記載のトランスと、前記トランスを用いてパルス電圧を発生させる回路部と、放電灯の円柱状の口金が装着される円筒状のソケット口を有するケースとを備え、前記トランスの磁性体は前記ソケット口の略中心線上に位置し、前記回路部は前記トランスの周辺に配置されることを特徴とする。 The invention according to claim 9 is a transformer using the bobbin according to any one of claims 1 to 4, or the transformer using the inductance according to claim 5 or 6, or the transformer according to claim 7 or 8 , and the transformer. A circuit unit for generating a pulse voltage, and a case having a cylindrical socket port to which a cylindrical cap of a discharge lamp is mounted, wherein the magnetic body of the transformer is located substantially on the center line of the socket port, The circuit unit is arranged around the transformer.

この発明によれば、請求項１乃至８いずれかと同様の効果を奏し得るパルス発生装置を提供できる。 According to the present invention, it is possible to provide a pulse generator capable of producing the same effect as any one of the first to eighth aspects.

以上説明したように、本発明では、巻線を隣り合う巻回領域に移行させる際にスムーズに移行させることができるとともに、巻線の線積率がよく、小型化、巻線の低抵抗化が可能なボビン、インダクタンス、トランス、およびパルス発生装置を提供することができるという効果がある。また、巻回部を巻線機に容易に固定でき、巻回作業を容易にしながら、巻回部内に配する磁性体の断面積を大きくすることができる。 As described above, according to the present invention, the winding can be smoothly transferred to the adjacent winding region, the winding line area ratio is good, the size is reduced, and the resistance of the winding is reduced. There is an effect that it is possible to provide a bobbin, an inductance, a transformer, and a pulse generator capable of performing the above. Moreover, the winding part can be easily fixed to the winding machine, and the cross-sectional area of the magnetic material disposed in the winding part can be increased while facilitating the winding operation.

以下、本発明の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施形態１）
図１（ａ）（ｂ），図２は、本実施形態の分割型のボビンＢを示し、ボビンＢは、円筒状の巻回部１と、巻回部１を巻回軸方向に４つの巻回領域１ａ，１ａ，．．．に分割する４つの鍔部２，２，．．．および１つの鍔部３とを備える。鍔部２，３は円板状に形成されて巻回部１の外周面に立設しており、４つの鍔部２は、巻回部１の一端から巻回領域１ａを挟んで巻回軸方向に並設され、巻回部１の他端には鍔部３が設けられる。巻回部１はその巻回軸方向に断面円形の貫通孔１ｂが形成されている。 (Embodiment 1)
FIGS. 1A, 1B, and 2 show a split bobbin B according to the present embodiment. The bobbin B includes a cylindrical winding part 1 and four winding parts 1 in the winding axis direction. Winding regions 1a, 1a,. . . Are divided into four ridges 2, 2,. . . And one collar 3. The flange portions 2 and 3 are formed in a disc shape and are erected on the outer peripheral surface of the winding portion 1, and the four flange portions 2 are wound from one end of the winding portion 1 with the winding region 1 a interposed therebetween. A collar portion 3 is provided at the other end of the winding portion 1. The winding portion 1 has a through hole 1b having a circular cross section in the winding axis direction.

鍔部２は、鍔部２を挟んで互いに隣り合う巻回領域１ａを連続させる切欠き部２ａを板面に設けている。切欠き部２ａは、鍔部２の外周縁に設けた開口部２ｂから巻回部１の外周面の接線方向に、巻回部１の外周面に接するまで直線状に形成されている。   The collar part 2 is provided with a notch part 2a on the plate surface for continuing the winding regions 1a adjacent to each other with the collar part 2 interposed therebetween. The notch portion 2 a is formed in a straight line from the opening 2 b provided on the outer peripheral edge of the flange portion 2 in the tangential direction of the outer peripheral surface of the winding portion 1 until it contacts the outer peripheral surface of the winding portion 1.

そして、ボビンＢを用いたインダクタンスでは、図３に示すように、巻回部１に巻回される巻線は平角巻線２０であり、各巻回領域１ａは平角巻線２０と略同様の幅に形成されており、各巻回領域１ａでは平角巻線２０が１列に重ねて巻回される。そして、一端側の巻回領域１ａで所定巻数まで重ねて巻回した後、平角巻線２０を切欠き部２ａに挿入して他端側に隣接した巻回領域１ａに移行させてから、隣接した巻回領域１ａで平角巻線２０を同様に巻回する。この巻回領域の移行時に平角巻線２０は、巻回部１の外周面の接線方向に導出されるので、平角巻線２０を隣り合う巻回領域１ａにスムーズに移行させることができる。   In the inductance using the bobbin B, as shown in FIG. 3, the winding wound around the winding portion 1 is a rectangular winding 20, and each winding region 1 a has a width substantially the same as that of the rectangular winding 20. In each winding region 1a, the rectangular windings 20 are wound in one row. Then, after winding up to a predetermined number of turns in the winding region 1a on one end side, the rectangular winding 20 is inserted into the notch portion 2a and moved to the winding region 1a adjacent to the other end side. The rectangular winding 20 is similarly wound in the wound region 1a. Since the rectangular winding 20 is led out in the tangential direction of the outer peripheral surface of the winding portion 1 during the transition of the winding region, the rectangular winding 20 can be smoothly transitioned to the adjacent winding region 1a.

また、平角巻線２０を各巻回領域１ａに１列に重ねて巻回することにより、従来の丸線の整列巻と比較して、巻線の線積率を向上させることができて直流抵抗値を低減させることが可能となり、小型化を図ることができる。さらに、丸線の整列巻で発生する段落ちや巻乱れがないので、巻回工程を容易に実施することができ、信頼性の高い絶縁性能を確保することができる。   In addition, by winding the rectangular winding 20 in a row in each winding region 1a, the line area ratio of the winding can be improved and the DC resistance can be improved as compared with the conventional round winding. The value can be reduced, and the size can be reduced. Furthermore, since there are no step-downs or winding disturbances that occur in the aligned winding of round wires, the winding process can be easily performed, and highly reliable insulation performance can be ensured.

また、平角巻線２０は幅広面が対向するように１列に重ねて巻回するので、その曲率半径は小さくなりすぎず、したがって平角巻線２０の絶縁皮膜を伸ばすことがなく、本来の絶縁性能を損なうことなく巻回することができる。   Further, since the rectangular winding 20 is wound in a row so that the wide surfaces face each other, the radius of curvature does not become too small, and therefore the insulating film of the rectangular winding 20 does not extend, and the original insulation It can be wound without impairing performance.

（実施形態２）
図４（ａ）（ｂ），図５は、本実施形態のボビンＢを示し、基本構成は実施形態１と同様であるが、切欠き部２ａの形状が実施形態１と異なる。実施形態１では巻回部１の巻回軸方向からみた切欠き部２ａは直線形状であるが、本実施形態の切欠き部２ａは、巻回部１の巻回軸方向からみた形状を曲線形状としており、鍔部２の外周縁に設けた開口部２ｂから巻回部１の外周面の接線方向に曲線状に形成されており、巻回方向に湾曲している。したがって、平角巻線２０を隣の巻回領域１ａに移行させる際に、平角巻線２０に急峻な屈折部が発生しないので、平角巻線２０の絶縁被覆に大きなストレスを与えることがない。 (Embodiment 2)
FIGS. 4A, 4B, and 5 show the bobbin B of the present embodiment. The basic configuration is the same as that of the first embodiment, but the shape of the notch 2a is different from that of the first embodiment. In the first embodiment, the cutout portion 2a viewed from the winding axis direction of the winding portion 1 has a linear shape, but the cutout portion 2a of the present embodiment has a curved shape as viewed from the winding axis direction of the winding portion 1. It has a shape, is formed in a curved line in the tangential direction of the outer peripheral surface of the winding part 1 from the opening 2b provided in the outer peripheral edge of the collar part 2, and is curved in the winding direction. Therefore, when the rectangular winding 20 is moved to the adjacent winding region 1a, no sharp refracting portion is generated in the rectangular winding 20, so that no great stress is applied to the insulation coating of the rectangular winding 20.

なお、図４（ａ）（ｂ）、図５では切欠き部２ａ全体を曲線形状に形成しているが、巻回軸方向からみた切欠き部２ａの形状を、図６に示すように鍔部２の開口部２ｂ付近のみを巻回方向に湾曲した曲線部２ｃに形成してもよく、さらには図７に示すように鍔部２の開口部２ｂ付近のみを巻回方向に傾斜した傾斜面を設けたテーパ部２ｄに形成してもよい。   4 (a), (b), and FIG. 5, the entire cutout portion 2a is formed in a curved shape. However, the shape of the cutout portion 2a viewed from the winding axis direction is shown in FIG. Only the vicinity of the opening 2b of the portion 2 may be formed in the curved portion 2c curved in the winding direction, and further, only the vicinity of the opening 2b of the collar portion 2 is inclined in the winding direction as shown in FIG. You may form in the taper part 2d which provided the surface.

（実施形態３）
図８（ａ）（ｂ），図９は、本実施形態のボビンＢを示し、基本構成は実施形態２の図７と同様であるが、切欠き部２ａの形状が実施形態２の図７と異なる。本実施形態の切欠き部２ａは、鍔部２の厚み方向（巻回軸方向）に傾斜面を設けたテーパ部２ｅを開口部２ｂ付近の内周側に設けたもので、テーパ部２ｅの傾斜面は、鍔部２の一端面から他端側に向かって切欠き部２ａの幅が狭くなるように、厚み方向の一端側に設けられる。したがって、平角巻線２０を隣の巻回領域１ａに移行させる際に、実施形態２に比べて、平角巻線２０に急峻な屈折部が発生しないので、平角巻線２０の変形をより抑制でき、絶縁性の劣化が少ない。 (Embodiment 3)
FIGS. 8A, 8B, and 9 show the bobbin B of the present embodiment, and the basic configuration is the same as that of FIG. 7 of the second embodiment, but the shape of the notch 2a is that of FIG. And different. The notch 2a of the present embodiment is provided with a tapered portion 2e having an inclined surface in the thickness direction (winding axis direction) of the flange portion 2 on the inner peripheral side in the vicinity of the opening 2b. The inclined surface is provided on one end side in the thickness direction so that the width of the cutout portion 2a becomes narrower from the one end surface of the flange portion 2 toward the other end side. Therefore, when the flat winding 20 is moved to the adjacent winding region 1a, a sharp refracting portion does not occur in the flat winding 20 as compared with the second embodiment, so that deformation of the flat winding 20 can be further suppressed. There is little deterioration of insulation.

（実施形態４）
図１０（ａ）（ｂ），図１１は、本実施形態のボビンＢを示し、基本構成は実施形態１と同様であるが、巻回部１の形状が異なる。巻回部１は四角筒状に形成され、その巻回軸方向には断面四角の貫通孔１ｂが形成されている。切欠き部２ａは、鍔部２の外周縁から巻回部１の外周面の四角のうち一角に接するように直線状に設けられ、鍔部２の外周縁に設けた開口部２ｂから巻回部１の一角の接線方向に形成されている。巻回部１を四角筒状に形成したことで、貫通孔１ｂを巻線機（図示なし）の回転軸に挿入するだけで、回転軸に貫通孔１ｂが固定され、回転軸を回転させての巻回作業が容易になる。 (Embodiment 4)
10A, 10B, and 11 show the bobbin B of the present embodiment, and the basic configuration is the same as that of the first embodiment, but the shape of the winding portion 1 is different. The winding part 1 is formed in a square tube shape, and a through hole 1b having a square cross section is formed in the winding axis direction. The notch 2 a is provided in a straight line so as to contact one corner of the outer peripheral surface of the winding part 1 from the outer peripheral edge of the flange part 2, and is wound from the opening 2 b provided on the outer peripheral edge of the flange part 2. It is formed in one corner tangential direction of the portion 1. By forming the winding part 1 in the shape of a square cylinder, the through-hole 1b is fixed to the rotating shaft only by inserting the through-hole 1b into the rotating shaft of the winding machine (not shown), and the rotating shaft is rotated. The winding work becomes easier.

（実施形態５）
図１２（ａ）（ｂ），図１３は、本実施形態のボビンＢを示し、基本構成は実施形態１と同様であるが、切欠き部２ａの形状が実施形態１と異なる。本実施形態の切欠き部２ａは、鍔部２の厚み方向（巻回軸方向）に傾斜面を設けたテーパ部２ｆを内周側に設けたもので、テーパ部２ｆの傾斜面は、鍔部２の一端面から他端面に向かって切欠き部２ａの幅が広くなるように設けられる。このテーパ部２ｆによって、平角巻線２０を無理なく隣の巻回領域１ａに誘導することができる。また図１４に示すように、このテーパ部２ｆの傾斜部長さｔ２は、平角巻線２０の幅ｄに対して、ｔ２≧ｄの関係が成立しているので、鍔２の厚みｔ１は、ｔ１＜ｄとすることができ、鍔２の薄型化を可能としている。 (Embodiment 5)
12A, 12B, and 13 show the bobbin B of the present embodiment. The basic configuration is the same as that of the first embodiment, but the shape of the notch 2a is different from that of the first embodiment. The notch portion 2a of the present embodiment is provided with a tapered portion 2f provided with an inclined surface in the thickness direction (winding axis direction) of the flange portion 2 on the inner peripheral side, and the inclined surface of the tapered portion 2f is The cutout portion 2a is provided so that the width of the cutout portion 2a increases from one end surface of the portion 2 toward the other end surface. By this taper portion 2f, the rectangular winding 20 can be easily guided to the adjacent winding region 1a. Further, as shown in FIG. 14, the inclined portion length t2 of the tapered portion 2f has a relationship of t2 ≧ d with respect to the width d of the flat winding 20, so that the thickness t1 of the flange 2 is t1 <D, which enables the heel 2 to be thinned.

さらに巻回部１は巻回軸方向に凹部１ｃを形成されており、凹部１ｃ内に挿入される磁性体（図示なし）は凹部１ｃの底面１ｄに当接することで所定の位置に固定され、組立性が向上している。   Furthermore, the winding part 1 has a recess 1c formed in the winding axis direction, and a magnetic body (not shown) inserted into the recess 1c is fixed at a predetermined position by contacting the bottom surface 1d of the recess 1c. Assemblability is improved.

（実施形態６）
図１５（ａ）（ｂ），図１６は、本実施形態のボビンＢを示し、基本構成は実施形態１と同様であるが、巻回部１の形状が異なる。巻回部１の巻回軸からみた断面形状を、円形状の外周の一部に平面部１ｅを設けた形状とし、切欠き部２ａは、鍔部２の外周縁から平面部１ｅに接するまで直線状に設けられている。 (Embodiment 6)
FIGS. 15A, 15B, and 16 show the bobbin B of the present embodiment. The basic configuration is the same as that of the first embodiment, but the shape of the winding portion 1 is different. The cross-sectional shape viewed from the winding axis of the winding part 1 is a shape in which a flat part 1e is provided on a part of a circular outer periphery, and the notch part 2a is in contact with the flat part 1e from the outer peripheral edge of the flange part 2. It is provided in a straight line.

そして巻回部１と軸方向に同形状の凹部１ｃが巻回部１の巻回軸方向に形成されており、凹部１ｃを巻線機（図示なし）の回転軸に挿入するだけで、回転軸に凹部１ｃが固定され、回転軸を回転させての巻回作業を容易にしながら、凹部１ｃ内に挿入される磁性体を構成するフェライトコア３０の断面積を大きくすることができる。また、フェライトコア３０は凹部１ｃの底面１ｄに当接することで所定の位置に固定され、組立性が向上している。   A recess 1c having the same shape as the winding part 1 in the axial direction is formed in the winding axis direction of the winding part 1, and the recess 1c can be rotated by simply inserting it into the rotating shaft of a winding machine (not shown). The recess 1c is fixed to the shaft, and the winding area of the ferrite core 30 constituting the magnetic body inserted into the recess 1c can be increased while facilitating the winding operation by rotating the rotating shaft. Further, the ferrite core 30 is fixed at a predetermined position by contacting the bottom surface 1d of the recess 1c, and the assemblability is improved.

さらに、底面１ｄの厚みｔ３を鍔２の厚みｔ１に対して、ｔ３＜ｔ１とすることで、フェライトコア３０を巻回領域１ａよりもさらに一端側（図１６の下側）に延設することができる。したがって、図１６に示すように、平角巻線２０の外側に１次巻線（リード線）２０として絶縁被覆巻線を４ターン巻回したトランス構造とした場合に、平角巻線（２次巻線）２０と１次巻線１０との結合度を向上させることができる。   Furthermore, by setting the thickness t3 of the bottom surface 1d to t3 <t1 with respect to the thickness t1 of the flange 2, the ferrite core 30 is extended further to one end side (lower side in FIG. 16) than the winding region 1a. Can do. Therefore, as shown in FIG. 16, when a transformer structure is formed by winding an insulation-coated winding as a primary winding (lead wire) 20 on the outside of a rectangular winding 20, a rectangular winding (secondary winding) is formed. The degree of coupling between the line 20 and the primary winding 10 can be improved.

また、切欠き部２ａは、鍔部２の厚み方向（巻回軸方向）に傾斜面を設けたテーパ部２ｆ，２ｇを内周側および外周側に各々設けたもので、テーパ部２ｆ，２ｇの傾斜面はともに内周側に向かって傾斜しているが、切欠き部２ａは、平角巻線２０を隣の巻回領域１ａに移行可能な幅であればどのような形状でもよい。   The notch portion 2a is formed by providing tapered portions 2f and 2g having inclined surfaces in the thickness direction (winding axis direction) of the flange portion 2 on the inner peripheral side and the outer peripheral side, respectively, and the tapered portions 2f and 2g. Both of the inclined surfaces are inclined toward the inner peripheral side, but the cutout portion 2a may have any shape as long as the rectangular winding 20 can be transferred to the adjacent winding region 1a.

さらに、平角巻線２０は隣接する巻回領域１ａの外周面に斜めになりながら導出されるので、巻回後の平角巻線２０の最外周は、切欠き部２ａによる移行箇所が他の箇所より外側に膨らむ傾向にあるが、切欠き部２ａの内周側の面は、その端部が巻回部１の外周面に一致しているので、平角巻線２０が切欠き部２ａを介して隣接する巻回領域１ａに導出される箇所が巻回部１の外周面に略一致し、平角巻線２０巻回完了時の最外周の膨らみを小さくできる。   Further, since the rectangular winding 20 is led out obliquely to the outer peripheral surface of the adjacent winding region 1a, the outermost outer periphery of the flat winding 20 after winding has a transition portion by the notch portion 2a at other locations. Although it tends to bulge more outwardly, the end of the inner peripheral surface of the notch 2a coincides with the outer periphery of the winding part 1, so that the rectangular winding 20 passes through the notch 2a. Thus, the portion led out to the adjacent winding region 1a substantially coincides with the outer peripheral surface of the winding portion 1, and the bulge of the outermost periphery when 20 turns of the rectangular winding is completed can be reduced.

（実施形態７）
図１７（ａ）（ｂ），図１８は、本実施形態のボビンＢを示し、基本構成は実施形態１と同様であるが、巻回部１の形状が異なる。巻回部１は四角筒状に形成され、切欠き部２ａは、鍔部２の外周縁から巻回部１の外周面の四辺のうち一辺に接するように直線状に設けられ、鍔部２の外周縁に設けた開口部２ｂから巻回部１の一辺の接線方向に形成されているので、平角巻線２０を隣り合う巻回領域１ａにスムーズに移行させることができる。また、巻回部１を四角筒状に形成したことで、その巻回軸方向に形成された凹部１ｃ内に挿入される磁性体を構成する珪素鋼板３１は凹部１ｃの底面１ｄに当接することで所定の位置に固定され、組立性が向上している。さらに、切欠き部２ａの形状は実施形態６と同様であり、実施形態６と同様の効果を奏する。 (Embodiment 7)
FIGS. 17A, 17B, and 18 show the bobbin B of the present embodiment. The basic configuration is the same as that of the first embodiment, but the shape of the winding portion 1 is different. The winding part 1 is formed in a rectangular tube shape, and the notch part 2 a is provided in a straight line so as to contact one side of the four sides of the outer peripheral surface of the winding part 1 from the outer peripheral edge of the flange part 2. Since it is formed in the tangential direction of one side of the winding part 1 from the opening 2b provided on the outer peripheral edge, the rectangular winding 20 can be smoothly transferred to the adjacent winding region 1a. Moreover, since the winding part 1 is formed in a square cylinder shape, the silicon steel plate 31 constituting the magnetic body inserted into the recess 1c formed in the winding axis direction comes into contact with the bottom surface 1d of the recess 1c. As a result, the assembly is improved in place. Furthermore, the shape of the notch 2a is the same as that of the sixth embodiment, and the same effect as that of the sixth embodiment is obtained.

また、凹部１ｃの底面１ｄ略中央に貫通孔１ｆ（凹部１ｃの断面より小さい）を設けており、ボビンＢを用いて高圧トランスを構成して周囲を樹脂で充填する際に、部分放電等を引き起こす原因となる凹部１ｃ内の空気層（空隙）を全て、貫通孔１ｆを介して凹部１ｃ外部へ排出している。   In addition, a through hole 1f (smaller than the cross section of the recess 1c) is provided at the substantially center of the bottom surface 1d of the recess 1c, and when the bobbin B is used to form a high-voltage transformer and the periphery is filled with resin, partial discharge or the like is performed. All the air layers (voids) in the recess 1c that cause the discharge are discharged to the outside of the recess 1c through the through holes 1f.

（実施形態８）
本実施形態のボビンＢは、実施形態６と同様に図１５（ａ）（ｂ）に示され、本実施形態ではこのボビンＢを用いて図１９に示す高圧トランスを構成している。ここで、平角巻線２０は、巻回部１の一端側（図１９の下側）が高圧側、巻回部１の他端側（図１９の上側）が低圧側であり、フェライトコア３０は、巻回部１の凹部１ｃの開口面にその端面が略一致しており、巻回領域１ａより鍔部３の厚み分だけ低圧側方向に長く形成されている。したがって、１次巻線１０を低圧側方向へ偏倚して巻回することで、１次巻線１０と平角巻線（２次巻線）２０との結合度を下げることなく、低圧線である１次巻線１０を平角巻線２０の高圧側から遠ざけることができ、１次巻線１０の絶縁被覆に印加される高圧電界を軽減することができる。 (Embodiment 8)
The bobbin B of this embodiment is shown in FIGS. 15A and 15B similarly to the sixth embodiment, and in this embodiment, the high-voltage transformer shown in FIG. 19 is configured using this bobbin B. Here, in the rectangular winding 20, one end side (the lower side in FIG. 19) of the winding part 1 is the high voltage side, and the other end side (the upper side in FIG. 19) of the winding part 1 is the low voltage side. The end surface of the winding portion 1 substantially coincides with the opening surface of the concave portion 1c, and is longer in the low-pressure direction than the winding region 1a by the thickness of the flange portion 3. Accordingly, the primary winding 10 is biased in the low-voltage side direction and wound so that it is a low-voltage line without lowering the degree of coupling between the primary winding 10 and the rectangular winding (secondary winding) 20. The primary winding 10 can be moved away from the high-voltage side of the rectangular winding 20, and the high-voltage electric field applied to the insulating coating of the primary winding 10 can be reduced.

また、図２０に示すように、フェライトコア３０の他端面に円板状のヨークコア３０ａを設けて、鍔部３上に配置すれば、１次巻線１０と平角巻線（２次巻線）２０との結合度をさらに向上させることができる。さらには、１次巻線として周囲を樹脂１２で封止したリードフレーム１１の一体成形品で構成してもよい。   As shown in FIG. 20, if a disc-shaped yoke core 30a is provided on the other end surface of the ferrite core 30 and disposed on the flange 3, the primary winding 10 and the rectangular winding (secondary winding) The degree of bonding with 20 can be further improved. Further, the lead frame 11 may be integrally formed as a primary winding with the periphery sealed with a resin 12.

なお、本実施形態の高圧トランスの周囲は樹脂充填されているものとする。   It is assumed that the periphery of the high voltage transformer of this embodiment is filled with resin.

（実施形態９）
図２１，図２２は、実施形態６のボビンＢを用いた高圧トランスを、車載用ＨＩＤランプの始動回路内蔵型ソケットに応用した例を示す。図２３はＨＩＤランプの一般的な点灯回路の構成を示す。ソケット４０は、ＨＩＤランプＬａの口金の外周面と嵌合する円筒状の外筒部４１の内側に、口金の底面に設けた環状の溝と嵌合する円筒状の内筒部４２が形成されたソケット口を具備し、これら２つの筒部４１，４２が函状のケース部４３に同心状に突設している。そして、外筒部４１には、ＨＩＤランプＬａの口金の周面に設けた外周電極に電気的に接続される一対の外側電極４４が配置されている。また、内筒部４２の底部には、先端が互いに近付く向きに突出する弾接ばね片を具備した中心電極４５が平角巻線２０の高圧側の端部に電気的に接続されている。 (Embodiment 9)
21 and 22 show an example in which the high voltage transformer using the bobbin B of the sixth embodiment is applied to a socket with a built-in start circuit of an in-vehicle HID lamp. FIG. 23 shows a configuration of a general lighting circuit of the HID lamp. The socket 40 is formed with a cylindrical inner tube portion 42 that fits into an annular groove provided on the bottom surface of the base inside the cylindrical outer tube portion 41 that fits with the outer peripheral surface of the base of the HID lamp La. The two cylindrical portions 41 and 42 are concentrically protruding from the box-shaped case portion 43. In the outer cylinder portion 41, a pair of outer electrodes 44 that are electrically connected to outer peripheral electrodes provided on the peripheral surface of the base of the HID lamp La are disposed. In addition, a center electrode 45 having a resilient spring piece projecting in a direction in which the tips approach each other is electrically connected to the high voltage side end of the rectangular winding 20 at the bottom of the inner cylindrical portion 42.

ケース部４３内には、ボビンＢを用いた高圧トランスおよび低圧回路部５０が収納されており、ボビンＢの巻回部１の各巻回領域１ａには平角巻線（２次巻線）２０が巻回され、巻回部１の外側には１次巻線１０が巻回されることで、パルス発生装置を構成している。   In the case part 43, a high-voltage transformer using the bobbin B and a low-voltage circuit part 50 are accommodated, and a rectangular winding (secondary winding) 20 is provided in each winding region 1a of the winding part 1 of the bobbin B. The primary winding 10 is wound on the outside of the winding part 1 to form a pulse generator.

ソケット４０は、バッテリＥが出力する直流電圧を所定電圧に変換するＤＣ／ＤＣコンバータ７０の出力がハーネス６０を介して入力され、低圧回路部５０はケース部４３内でハーネス６０の引き出し方向に配置される。また、ボビンＢの凹部１ｃ内に挿入されたフェライトコア３０は、外筒部４１、内筒部４２の略中心線上に位置する。   The socket 40 receives the output of the DC / DC converter 70 that converts the DC voltage output from the battery E into a predetermined voltage via the harness 60, and the low-voltage circuit unit 50 is arranged in the case part 43 in the direction in which the harness 60 is pulled out. Is done. Further, the ferrite core 30 inserted into the concave portion 1 c of the bobbin B is located on a substantially center line of the outer cylinder portion 41 and the inner cylinder portion 42.

低圧回路部５０は、ＤＣ／ＤＣコンバータ７０の−４００Ｖ−６００Ｖ出力端間に接続したコンデンサＣ１と、ＤＣ／ＤＣコンバータ７０の−４００Ｖ−０Ｖ出力端間に接続したコンデンサＣ２と、１次巻線１０を介してコンデンサＣ１に並列接続した放電ギャップＧ１とで構成される。そして、コンデンサＣ１の両端電圧が所定電圧以上となると放電ギャップＧ１が導通し、１次巻線１０にコンデンサＣ１からの放電電流が流れて、平角巻線２０両端間にパルス電圧が発生し、ＨＩＤランプＬａは、外側電極４４、中心電極４５を介してパルス電圧が印加されて始動する。   The low-voltage circuit unit 50 includes a capacitor C1 connected between the -400V-600V output terminals of the DC / DC converter 70, a capacitor C2 connected between the -400V-0V output terminals of the DC / DC converter 70, and a primary winding. 10 and a discharge gap G1 connected in parallel to the capacitor C1. When the voltage across the capacitor C1 exceeds the predetermined voltage, the discharge gap G1 is conducted, the discharge current from the capacitor C1 flows through the primary winding 10, and a pulse voltage is generated across the rectangular winding 20, thereby generating a HID. The lamp La is started by applying a pulse voltage through the outer electrode 44 and the center electrode 45.

本実施形態において、１次巻線１０は、高絶縁被覆で覆われた平角線で構成され、高絶縁被覆の外周には自己融着テープ２５が巻かれており、１次巻線１０に電流を流すことによって生じる発熱で隣り合う自己融着テープ２５同士が融着し、１次巻線１０は位置固定される。   In the present embodiment, the primary winding 10 is composed of a flat wire covered with a high insulation coating, and a self-bonding tape 25 is wound around the outer periphery of the high insulation coating, and a current is supplied to the primary winding 10. The adjacent self-bonding tapes 25 are fused with each other by heat generated by flowing, and the primary winding 10 is fixed in position.

本発明の実施形態１のボビンの外観を示し、（ａ）は端面図、（ｂ）は側面図である。The external appearance of the bobbin of Embodiment 1 of this invention is shown, (a) is an end view, (b) is a side view. 同上のＡ１−Ａ１’断面図である。It is A1-A1 'sectional drawing same as the above. 同上の平角巻線を巻回したＡ１−Ａ１’断面図である。It is A1-A1 'sectional drawing which wound the rectangular winding same as the above. 本発明の実施形態２のボビンの外観を示し、（ａ）は端面図、（ｂ）は側面図である。The external appearance of the bobbin of Embodiment 2 of this invention is shown, (a) is an end view, (b) is a side view. 同上のＡ２−Ａ２’断面図である。It is A2-A2 'sectional drawing same as the above. 同上の別の構成を示す端面図である。It is an end elevation which shows another structure same as the above. 同上の別の構成を示す端面図である。It is an end elevation which shows another structure same as the above. 本発明の実施形態３のボビンの外観を示し、（ａ）は端面図、（ｂ）は側面図である。The external appearance of the bobbin of Embodiment 3 of this invention is shown, (a) is an end view, (b) is a side view. 同上のＡ３−Ａ３’断面図である。It is A3-A3 'sectional drawing same as the above. 本発明の実施形態４のボビンの外観を示し、（ａ）は端面図、（ｂ）は側面図である。The external appearance of the bobbin of Embodiment 4 of this invention is shown, (a) is an end elevation, (b) is a side view. 同上のＡ４−Ａ４’断面図である。It is A4-A4 'sectional drawing same as the above. 本発明の実施形態５のボビンの外観を示し、（ａ）は端面図、（ｂ）は側面図である。The external appearance of the bobbin of Embodiment 5 of this invention is shown, (a) is an end elevation, (b) is a side view. 同上の平角巻線を巻回したＡ５−Ａ５’断面図である。It is A5-A5 'sectional drawing which wound the rectangular winding same as the above. 図１３の一部拡大図である。FIG. 14 is a partially enlarged view of FIG. 13. 本発明の実施形態６のボビンの外観を示し、（ａ）は端面図、（ｂ）は側面図である。The external appearance of the bobbin of Embodiment 6 of this invention is shown, (a) is an end view, (b) is a side view. 同上のボビンを用いたトランスのＡ６−Ａ６’断面図である。It is A6-A6 'sectional drawing of the trans | transformer using a bobbin same as the above. 本発明の実施形態７のボビンの外観を示し、（ａ）は端面図、（ｂ）は側面図である。The external appearance of the bobbin of Embodiment 7 of this invention is shown, (a) is an end view, (b) is a side view. 同上のＡ７−Ａ７’断面図である。It is A7-A7 'sectional drawing same as the above. 本発明の実施形態８のトランスの側面断面図である。It is side surface sectional drawing of the trans | transformer of Embodiment 8 of this invention. 同上の別の構成を示す側面断面図である。It is side surface sectional drawing which shows another structure same as the above. 本発明の実施形態９のパルス発生装置を内蔵した始動回路内蔵型ソケットの正面図である。It is a front view of the socket with a built-in start circuit which incorporated the pulse generator of Embodiment 9 of this invention. 同上の側面断面図である。It is side surface sectional drawing same as the above. ＨＩＤランプの一般的な点灯回路の構成図である。It is a block diagram of the general lighting circuit of a HID lamp. 第１の従来例のトランスの外観を示し、（ａ）は端面図、（ｂ）はＡ１０−Ａ１０’断面図である。The external appearance of the transformer of the first conventional example is shown, (a) is an end view, and (b) is an A10-A10 'sectional view. 第２の従来例のトランスの外観を示す斜視図である。It is a perspective view which shows the external appearance of the transformer of the 2nd prior art example. 図２４（ｂ）の一部拡大図である。FIG. 25 is a partially enlarged view of FIG.

Ｂ ボビン
１ 巻回部
１ａ 巻回領域
２，３ 鍔部
２ａ 切欠き部
２ｂ 開口部 B Bobbin 1 Winding part 1a Winding area 2,3 Hook part 2a Notch part 2b Opening part

Claims (9)

平角巻線を巻回する巻回部と、前記巻回部の外周面に巻回方向に沿って立設して前記巻回部を巻回軸方向に複数の巻回領域に分割する鍔部と、互いに隣り合う巻回領域を連続させるように前記鍔部に形成された切欠き部とを備えるボビンにおいて、
前記切欠き部は前記巻回部の外周の接線方向に形成され、巻回時に隣の巻回領域に移行させるために前記切欠き部に挿入された平角巻線は前記巻回部の外周の接線方向に導出され、巻回領域の幅が、平角巻線の幅広面と略同様の幅に形成され、各巻回領域において、平角巻線はその幅広面が対向するように１列に重ねて巻回され、
前記巻回部は、巻回軸方向からみた断面形状が、円形状の外周の一部に平面部を設けた形状となり、前記切欠き部は、前記鍔部の外周縁から前記平面部に接し、前記切欠き部を介して導出した平角巻線は前記平面部に接する
ことを特徴とするボビン。 A winding part for winding a rectangular winding, and a flange part that stands on the outer peripheral surface of the winding part along the winding direction and divides the winding part into a plurality of winding regions in the winding axis direction. And a bobbin provided with a notch portion formed in the collar portion so as to continue the winding regions adjacent to each other,
The notch portion is formed in a tangential direction of the outer periphery of the winding portion, and a rectangular winding inserted in the notch portion for shifting to an adjacent winding region at the time of winding is an outer periphery of the winding portion. Derived in the tangential direction, the width of the winding region is formed to be substantially the same width as the wide surface of the flat winding, and in each winding region, the flat windings are stacked in a row so that the wide surfaces face each other. Wound ,
The winding portion has a cross-sectional shape as viewed from the winding axis direction, in which a flat portion is provided on a part of a circular outer periphery, and the notch is in contact with the flat portion from an outer peripheral edge of the flange portion. The bobbin is characterized in that the rectangular winding led out through the notch is in contact with the flat part . 前記切欠き部は前記鍔部の外周縁に開口部を形成し、前記切欠き部を巻回軸方向からみた前記開口部近傍の形状は曲線で構成されることを特徴とする請求項１記載のボビン。   The said notch part forms an opening part in the outer periphery of the said collar part, The shape of the said opening part vicinity seeing the said notch part from the winding-axis direction is comprised by the curve. Bobbins. 前記切欠き部は前記鍔部の外周縁に開口部を形成し、前記切欠き部を巻回軸方向からみた前記開口部近傍の形状はテーパ状に構成されることを特徴とする請求項１記載のボビン。   2. The cutout portion is formed with an opening in an outer peripheral edge of the flange portion, and the shape in the vicinity of the opening when the cutout portion is viewed from the winding axis direction is formed in a tapered shape. The bobbin described. 前記切欠き部の互いに対向する内壁面のうち少なくとも一方は、鍔部の厚み方向に対して斜めに形成されることを特徴とする請求項１乃至３いずれか記載のボビン。The bobbin according to any one of claims 1 to 3, wherein at least one of the mutually facing inner wall surfaces of the notch is formed obliquely with respect to the thickness direction of the flange. 請求項１乃至４いずれか記載のボビンの巻回部に巻回軸方向に凹部を設け、該凹部内に磁性体を配置したことを特徴とするインダクタンス。An inductance, wherein a recess is provided in a winding axis direction in the winding portion of the bobbin according to any one of claims 1 to 4, and a magnetic body is disposed in the recess. 前記凹部の底面に挿通孔を設けたことを特徴とする請求項５記載のインダクタンス。The inductance according to claim 5, wherein an insertion hole is provided in a bottom surface of the recess. 請求項５または６記載のインダクタンスが備える磁性体を前記巻回部より巻回軸方向の少なくとも一方向に長くし、前記平角巻線の外側にリード線を巻回したことを特徴とするトランス。7. A transformer comprising a magnetic body provided in the inductance according to claim 5 or 6 that is longer than the winding portion in at least one direction of a winding axis direction, and a lead wire is wound outside the rectangular winding. 前記リード線は、前記巻回部の中心から前記磁性体を長くした方向に偏倚して巻回されることを特徴とする請求項７記載のトランス。The transformer according to claim 7, wherein the lead wire is wound while being biased in a direction in which the magnetic body is elongated from a center of the winding portion. 請求項１乃至４いずれか記載のボビンを用いたトランスまたは請求項５または６記載のインダクタンスを用いたトランスまたは請求項７または８記載のトランスと、前記トランスを用いてパルス電圧を発生させる回路部と、放電灯の円柱状の口金が装着される円筒状のソケット口を有するケースとを備え、前記トランスの磁性体は前記ソケット口の略中心線上に位置し、前記回路部は前記トランスの周辺に配置されることを特徴とするパルス発生装置。A transformer using the bobbin according to any one of claims 1 to 4, a transformer using the inductance according to claim 5 or 6, or a transformer according to claim 7 or 8, and a circuit unit for generating a pulse voltage using the transformer And a case having a cylindrical socket port to which a cylindrical cap of a discharge lamp is mounted, the magnetic body of the transformer is located on a substantially center line of the socket port, and the circuit unit is a periphery of the transformer It is arrange | positioned in the pulse generator characterized by the above-mentioned.
JP2004156850A 2004-05-26 2004-05-26 Bobbins, inductances, transformers, and pulse generators Expired - Fee Related JP4797337B2 (en)

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