JP2006185946A - Discharge lamp starting device, discharge lamp lighting device, lighting device and vehicle - Google Patents

Discharge lamp starting device, discharge lamp lighting device, lighting device and vehicle Download PDF

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JP2006185946A
JP2006185946A JP2004374663A JP2004374663A JP2006185946A JP 2006185946 A JP2006185946 A JP 2006185946A JP 2004374663 A JP2004374663 A JP 2004374663A JP 2004374663 A JP2004374663 A JP 2004374663A JP 2006185946 A JP2006185946 A JP 2006185946A
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discharge lamp
magnetic core
side terminal
winding
voltage side
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JP4635601B2 (en
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健一 ▲高▼松
Kenichi Takamatsu
Masaaki Nakada
公明 中田
Kazuhiko Kinutani
和彦 絹谷
Mizuhito Ida
瑞人 井田
Hisanao Kajiura
久尚 梶浦
Tomoyuki Nakano
智之 中野
Hisao Seto
学雄 瀬戸
Masanori Sato
昌紀 佐藤
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To facilitate work for bonding a high voltage-side terminal and a low voltage-side terminal to a pulse transformer. <P>SOLUTION: The magnetic core 11 has a cylindrical shape, and secondary wiring 13 of the pulse transformer is wound to it. A core holder 20 is formed of synthetic resin in a shape where a pair of holding parts 21a and 21b holding each end part in a longitudinal direction of the magnetic core 11 are coupled in a backing plate part 22. A high voltage-side terminal 14 and a low voltage-side terminal 15, which have insertion parts 14d and 15d into which end parts 13a and 13b of secondary wiring 13 are inserted, are fixed to the core holder 20. The holding parts 21a and 21b have a pair of holding pieces 24 sandwiching and holding respective end parts in the longitudinal direction of the magnetic core 11. The insertion parts 14d and 15d have gaps into which the end parts 13a and 13b of secondary wiring 13, which are wound round the magnetic core 11 held by the core holder 20, by the holding parts 21a and 21b are inserted. In the gaps, sides introducing the end parts 13a and 13b of secondary wiring 13 are opened. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、放電灯の始動に用いる高圧パルスを発生させるパルストランスを備えた放電灯始動装置、その放電灯始動装置を用いた放電灯点灯装置、その放電灯点灯装置を用いた照明装置、その照明装置を搭載した車両に関するものである。   The present invention relates to a discharge lamp starting device including a pulse transformer that generates a high-pressure pulse used for starting a discharge lamp, a discharge lamp lighting device using the discharge lamp starting device, an illumination device using the discharge lamp lighting device, The present invention relates to a vehicle equipped with a lighting device.

一般に、高圧放電灯を始動するには高圧パルスを発生させる放電灯始動装置（イグナイタ）が用いられる。この種の放電灯始動装置は、たとえば図８に示す回路構成を有している。図示例は、パルストランスＰＴの一次巻線Ｎ１にスパークギャップのような電圧応答型のスイッチ素子ＳＧが直列接続され、パルストランスＰＴの一次巻線Ｎ１とスイッチ素子ＳＧとの直列回路にコンデンサＣが並列接続され、パルストランスＰＴの一次巻線の一端と一端が共通接続されたパルストランスＰＴの二次巻線Ｎ２に高圧放電灯Ｌａが直列接続される構成を有している。この放電灯始動装置は３個の端子ＩＮ１〜ＩＮ３を有し、パルストランスＰＴの二次巻線Ｎ２と高圧放電灯Ｌａとの直列回路の両端である端子ＩＮ１，ＩＮ２に放電灯点灯回路の出力が接続され、コンデンサＣの両端である端子ＩＮ１，ＩＮ３の間にコンデンサＣを充電する電圧が印加される構成になっている。   In general, a discharge lamp starting device (igniter) that generates a high pressure pulse is used to start a high pressure discharge lamp. This type of discharge lamp starting device has a circuit configuration shown in FIG. 8, for example. In the illustrated example, a voltage-responsive switching element SG such as a spark gap is connected in series to the primary winding N1 of the pulse transformer PT, and a capacitor C is connected to the series circuit of the primary winding N1 of the pulse transformer PT and the switching element SG. A high-pressure discharge lamp La is connected in series to a secondary winding N2 of the pulse transformer PT that is connected in parallel and one end of the primary winding of the pulse transformer PT is commonly connected. This discharge lamp starting device has three terminals IN1 to IN3, and outputs of the discharge lamp lighting circuit to terminals IN1 and IN2, which are both ends of a series circuit of the secondary winding N2 of the pulse transformer PT and the high pressure discharge lamp La. Are connected, and a voltage for charging the capacitor C is applied between terminals IN1 and IN3 which are both ends of the capacitor C.

したがって、コンデンサＣの充電に伴ってスイッチ素子ＳＧの両端電圧がブレークオーバ電圧に達すると、スイッチ素子ＳＧがオンになり、パルストランスＰＴの一次巻線Ｎ１に電流が流れることによってパルストランスＰＴの二次巻線Ｎ２に昇圧された高圧パルスが発生する。パルストランスＰＴの二次巻線Ｎ２に発生した高圧パルスは、端子ＩＮ１，ＩＮ２に印加されている電圧とともに高圧放電灯Ｌａに印加され、高圧放電灯Ｌａの始動が可能になる。   Accordingly, when the voltage across the switch element SG reaches the breakover voltage as the capacitor C is charged, the switch element SG is turned on, and a current flows through the primary winding N1 of the pulse transformer PT. A boosted high voltage pulse is generated in the next winding N2. The high-pressure pulse generated in the secondary winding N2 of the pulse transformer PT is applied to the high-pressure discharge lamp La together with the voltage applied to the terminals IN1 and IN2, and the high-pressure discharge lamp La can be started.

ところで、高圧放電灯を車両の前照灯や補助灯などに用いるために、高圧放電灯のソケットに放電灯始動装置を一体に設けたものが提供されている。この種の放電灯始動装置Ｘとしては、図９に示すように、高圧放電灯Ｌａの口金部４１を受けるソケット部３１と、放電灯点灯回路に接続するための端子ＩＮ１〜ＩＮ３に対応する端子片を配列したＩＧＮコネクタからなるコネクタ部３２とを一体に設けたものが知られている（たとえば、特許文献１参照）。この放電灯始動装置Ｘを放電灯点灯回路と組み合わせることにより放電灯点灯装置が構成され、さらに放電灯点灯装置とともに高圧放電灯Ｌａを器具本体に取り付けることによって照明装置を構成することができる。   By the way, in order to use a high pressure discharge lamp for a vehicle headlamp, an auxiliary lamp, or the like, a discharge lamp starting device is provided integrally with a socket of a high pressure discharge lamp. As shown in FIG. 9, this type of discharge lamp starting device X includes a socket portion 31 that receives a base portion 41 of a high-pressure discharge lamp La and terminals corresponding to terminals IN1 to IN3 for connection to a discharge lamp lighting circuit. A device in which a connector portion 32 made of an IGN connector in which pieces are arranged is provided integrally is known (see, for example, Patent Document 1). A discharge lamp lighting device is configured by combining the discharge lamp starting device X with a discharge lamp lighting circuit, and an illumination device can be configured by attaching a high pressure discharge lamp La together with the discharge lamp lighting device to the fixture body.

この種の放電灯始動装置では、たとえば図１０に示す手順でパルストランスＰＴが組み付けられる。すなわち、図１０（ａ）に示す磁気コア１１に、図１０（ｂ）のように平角導線をエッジワイズ巻きで巻装して二次巻線１３（Ｎ２）を形成し、図１０（ｃ）のようにソケット部３１の電極となる高圧側端子１４を二次巻線１３の一端部（高圧側）に接合するとともに低圧側端子１５を二次巻線１３の他端部に接合した後、図１０（ｄ）のように絶縁封止樹脂を射出成形するなどして内ボディ３３を形成するとともにソケット部３１を形成する。内ボディ３３には一次巻線１２（Ｎ１）を巻装したコイルボビン１６が外側に装着される（たとえば、特許文献２）。   In this type of discharge lamp starting device, for example, the pulse transformer PT is assembled according to the procedure shown in FIG. That is, the secondary winding 13 (N2) is formed on the magnetic core 11 shown in FIG. 10A by winding a flat conducting wire in an edgewise manner as shown in FIG. 10B. After joining the high voltage side terminal 14 serving as the electrode of the socket part 31 to one end part (high voltage side) of the secondary winding 13 and joining the low voltage side terminal 15 to the other end part of the secondary winding 13, As shown in FIG. 10D, the inner body 33 is formed and the socket portion 31 is formed by injection molding an insulating sealing resin. A coil bobbin 16 around which the primary winding 12 (N1) is wound is mounted on the inner body 33 (for example, Patent Document 2).

磁気コア１１に巻装した二次巻線１３に高圧側端子１４あるいは低圧側端子１５を接合する技術としては、たとえば図１１に示すように、リードフレーム１０を用いることが考えられている。図示例では、リードフレーム１０に、二次巻線１３に接合する高圧側端子１４および低圧側端子１５が設けてあり、さらに、磁気コア１１の長手方向の両端面に設けた凹部（図示せず）に係合する凸部（図示せず）を設けた位置決め片１０ａ，１０ｂをリードフレーム１０に設けてある。両位置決め片１０ａ，１０ｂの間隔は磁気コア１１の長手方向の寸法よりもやや広く形成されており、一方の位置決め片１０ｂには凸部を他方の位置決め片１０ａに近付けるように伸長させることができる菱形状の塑性変形部１０ｃが設けられる。   As a technique for joining the high-voltage side terminal 14 or the low-voltage side terminal 15 to the secondary winding 13 wound around the magnetic core 11, it is considered to use a lead frame 10 as shown in FIG. 11, for example. In the illustrated example, the lead frame 10 is provided with a high-voltage side terminal 14 and a low-voltage side terminal 15 that are joined to the secondary winding 13, and furthermore, recesses (not shown) provided on both end surfaces in the longitudinal direction of the magnetic core 11. ) Are provided on the lead frame 10 with positioning pieces 10a, 10b provided with convex portions (not shown) that engage with the lead frame 10. The distance between the positioning pieces 10a and 10b is slightly larger than the length of the magnetic core 11 in the longitudinal direction, and one positioning piece 10b can be extended so that the convex portion is close to the other positioning piece 10a. A diamond-shaped plastic deformation portion 10c is provided.

したがって、まず磁気コア１１の長手方向の一端面に設けた凹部に位置決め片１０ａの先端の凸部を挿入するように磁気コア１１のリードフレーム１０に対する位置を合わせ、次に塑性変形部１０ｃを変形させることにより位置決め片１０ｂの先端の凸部を磁気コア１１の長手方向の他端面に設けた凹部に挿入して、磁気コア１１をリードフレーム１０に固定する。このようにしてリードフレーム１０に対して磁気コア１１を位置決めした状態で、二次巻線１３の末端部を高圧側端子１４と低圧側端子１５とに接合するのである。
特開２００２−２１７０５０号公報 特開２００４−３１９６１７号公報 Therefore, first, the position of the magnetic core 11 with respect to the lead frame 10 is aligned so that the convex portion at the tip of the positioning piece 10a is inserted into the concave portion provided on one end surface in the longitudinal direction of the magnetic core 11, and then the plastic deformation portion 10c is deformed. By doing so, the convex portion at the tip of the positioning piece 10 b is inserted into the concave portion provided on the other end surface in the longitudinal direction of the magnetic core 11, and the magnetic core 11 is fixed to the lead frame 10. In this way, with the magnetic core 11 positioned with respect to the lead frame 10, the end of the secondary winding 13 is joined to the high voltage side terminal 14 and the low voltage side terminal 15.
JP 2002-2107050 A JP 2004-319617 A

上述のように、磁気コア１１に巻装した二次巻線１３の末端部を高圧側端子１４および低圧側端子１５に接合するためにリードフレーム１０を用いると、リードフレーム１０に対する磁気コア１１の位置決め作業と、リードフレーム１０に対する磁気コア１１の固定作業と、二次巻線１３の末端部を高圧側端子１４および低圧側端子１５に接合する作業との３段階の作業が必要になり、作業に手間がかかるという問題がある。したがって、作業の自動化が困難になっている。   As described above, when the lead frame 10 is used to join the end portion of the secondary winding 13 wound around the magnetic core 11 to the high-voltage side terminal 14 and the low-voltage side terminal 15, Three steps of positioning work, work of fixing the magnetic core 11 to the lead frame 10, and work of joining the end portion of the secondary winding 13 to the high-voltage side terminal 14 and the low-voltage side terminal 15 are necessary. There is a problem that it takes time and effort. Therefore, automation of work has become difficult.

本発明は上記事由に鑑みて為されたものであり、その目的は、パルストランスに他の部材を接合する作業を簡単にし、作業の自動化を可能とした放電灯始動装置を提供することにあり、さらにこの放電灯始動装置を放電灯点灯装置、照明装置、車両に用いることにある。   The present invention has been made in view of the above reasons, and an object of the present invention is to provide a discharge lamp starting device that simplifies the work of joining other members to the pulse transformer and enables the work to be automated. Further, the discharge lamp starting device is used for a discharge lamp lighting device, a lighting device, and a vehicle.

請求項１の発明では、棒状の磁気コアに巻線が巻装されたパルストランスを備え、巻線の一方の末端部に高圧側端子を接続し他方の末端部に低圧側端子が接続される放電灯始動装置であって、巻線が巻装された磁気コアの長手方向の両端部がそれぞれ装着され巻線を間に挟む２個の把持部と両把持部を連結する背板部とを一体に備える合成樹脂成形品のコアホルダを備え、コアホルダには差込部を有した高圧側端子および低圧側端子が固定されており、各把持部は磁気コアの長手方向の各端部をそれぞれ挟んで保持する一対の保持片をそれぞれ備え、差込部は把持部によりコアホルダに保持された磁気コアに巻装されている巻線の末端部を差し込む間隙を有し、当該間隙は巻線の末端部が導入される側が開放されていることを特徴とする。   According to the first aspect of the present invention, a pulse transformer in which a winding is wound around a rod-shaped magnetic core is provided, a high voltage side terminal is connected to one end of the winding, and a low voltage side terminal is connected to the other end. A discharge lamp starting device, comprising: two gripping portions that are respectively attached to both ends in the longitudinal direction of a magnetic core on which windings are wound, and a back plate portion that connects the gripping portions. It is equipped with a synthetic resin molded core holder, and the core holder has a high-voltage side terminal and a low-voltage side terminal with an insertion part fixed, and each gripping part sandwiches each end in the longitudinal direction of the magnetic core. Each having a pair of holding pieces held by the holding portion, and the insertion portion has a gap for inserting the end portion of the winding wound around the magnetic core held by the core holder by the holding portion, and the gap is the end of the winding. The side into which the part is introduced is open.

この構成によれば、巻線が巻装された棒状の磁気コアの長手方向の各一端部が装着される把持部を背板部で連結した形状の合成樹脂成形品のコアホルダを備え、把持部が磁気コアの長手方向の各端部をそれぞれ挟んで保持する一対の保持片を備えるから、一対の保持片間に磁気コアが導入されるようにコアホルダを磁気コアに押し付けるだけで、コアホルダの弾性を利用してコアホルダに磁気コアを保持することができる。しかも、巻線の末端部を差し込む間隙を有した差込部を備える高圧側端子および低圧側端子をコアホルダに固定しており、かつ間隙は巻線の末端部を導入する側が開放されているので、巻線を巻装した磁気コアをコアホルダの把持部に装着することによって、巻線の末端部を差込部に導入することができ、結果的にコアホルダへの磁気コアの装着によって、巻線の末端部を高圧側端子および低圧側端子に仮保持させることができる。つまり、磁気コアをコアホルダに装着したときに、磁気コアに巻装された巻線の末端部の位置が、高圧側端子および低圧側端子の差込部の位置に一致するようにしておくことにより、位置合わせを行うことなく巻線の末端部を高圧側端子および低圧側端子に位置合わせすることができるのである。その結果、パルストランスと高圧側端子および低圧側端子との接続作業が簡単になり、工数が削減可能になるとともに、作業の自動化が可能になり、製造コストの低減につながる。   According to this configuration, the gripping unit includes the core holder of the synthetic resin molded product having a shape in which the gripping part to which each one end part of the rod-shaped magnetic core around which the winding is wound is attached is connected by the back plate part. Includes a pair of holding pieces that hold the respective ends in the longitudinal direction of the magnetic core, so that the elasticity of the core holder can be obtained simply by pressing the core holder against the magnetic core so that the magnetic core is introduced between the pair of holding pieces. Can be used to hold the magnetic core in the core holder. Moreover, since the high-voltage side terminal and the low-voltage side terminal provided with the insertion portion having a gap for inserting the end portion of the winding are fixed to the core holder, and the side where the end portion of the winding is introduced is opened. By attaching the magnetic core wound with the winding to the gripping part of the core holder, the terminal end of the winding can be introduced into the plug-in part. Can be temporarily held by the high voltage side terminal and the low voltage side terminal. In other words, when the magnetic core is mounted on the core holder, the position of the end of the winding wound around the magnetic core is made to coincide with the position of the insertion portion of the high-voltage side terminal and the low-voltage side terminal. The end portions of the windings can be aligned with the high voltage side terminal and the low voltage side terminal without alignment. As a result, the connection work between the pulse transformer and the high-voltage side terminal and the low-voltage side terminal is simplified, man-hours can be reduced, the work can be automated, and the manufacturing cost is reduced.

請求項２の発明では、請求項１の発明において、前記差込部のうち前記巻線の末端部が導入される部位には間隙の開口幅を広げるように傾斜した導入片が設けられていることを特徴とする。   According to a second aspect of the present invention, in the first aspect of the present invention, an introduction piece that is inclined so as to widen an opening width of the gap is provided at a portion of the insertion portion into which the end portion of the winding is introduced. It is characterized by that.

この構成によれば、巻線の末端部と差込部との位置が多少ずれていても巻線の末端部が導入片に当接する範囲内であれば、末端部を差込部に誘い込むことができ、コアホルダへの取付作業が一層容易になる。   According to this configuration, even if the position of the end portion of the winding and the insertion portion is slightly shifted, if the end portion of the winding is within the range where it abuts the introduction piece, the end portion is guided into the insertion portion. This makes it easier to attach to the core holder.

請求項３の発明では、請求項１または請求項２の発明において、前記把持部の対向面であって前記保持片の先端部には、保持片の先端ほど互いの間隔を広げるように傾斜した導入面が形成されていることを特徴とする。   According to a third aspect of the present invention, in the first or second aspect of the present invention, the tip of the holding piece, which is the opposing surface of the gripping part, is inclined so as to widen the distance from each other toward the tip of the holding piece. An introduction surface is formed.

この構成によれば、磁気コアをコアホルダに取り付ける際に、磁気コアの長手方向における巻線の両端位置と両把持部との位置が多少ずれていても、巻線の端部が導入面に当接する範囲内であれば、巻線を両把持部の間に誘い込むことができ、コアホルダへの取付作業が一層容易になる。   According to this configuration, when the magnetic core is attached to the core holder, even if the positions of both ends of the winding and the gripping portions in the longitudinal direction of the magnetic core are slightly shifted, the end of the winding contacts the introduction surface. If it is in the range which touches, a coil | winding can be drawn in between both holding parts, and the attachment operation | work to a core holder becomes still easier.

請求項４の発明は、放電灯点灯装置であって、請求項１ないし請求項３のいずれか１項に記載の放電灯始動装置を用いて放電灯を点灯させることを特徴とする。   According to a fourth aspect of the present invention, there is provided a discharge lamp lighting device, wherein the discharge lamp is lit using the discharge lamp starting device according to any one of the first to third aspects.

請求項５の発明は、照明装置であって、請求項４記載の放電灯点灯装置を用いることを特徴とする。   The invention of claim 5 is an illumination device, wherein the discharge lamp lighting device of claim 4 is used.

請求項６の発明は、車両であって、請求項５記載の照明装置を搭載したことを特徴とする。   The invention according to claim 6 is a vehicle, and is characterized in that the lighting device according to claim 5 is mounted.

本発明の構成によれば、一対の保持片間に磁気コアが導入されるようにコアホルダを磁気コアに押し付けるだけで、コアホルダの弾性を利用してコアホルダに磁気コアを保持することができるという利点がある。また、コアホルダへの磁気コアの装着によって、巻線の末端部を高圧側端子および低圧側端子に仮保持させることができる。したがって、磁気コアをコアホルダに装着したときに、磁気コアに巻装された巻線の末端部の位置が、高圧側端子および低圧側端子の差込部の位置に一致するようにしておくことにより、位置合わせを行うことなく巻線の末端部を高圧側端子および低圧側端子に位置合わせすることができるという利点がある。このことから、パルストランスと高圧側端子および低圧側端子との接続作業が簡単になり、工数が削減可能になるとともに、作業の自動化が可能になり、製造コストの低減につながるという効果が得られる。   According to the configuration of the present invention, the magnetic core can be held on the core holder using the elasticity of the core holder simply by pressing the core holder against the magnetic core so that the magnetic core is introduced between the pair of holding pieces. There is. Further, by attaching the magnetic core to the core holder, the end of the winding can be temporarily held on the high-voltage side terminal and the low-voltage side terminal. Therefore, when the magnetic core is mounted on the core holder, the position of the end portion of the winding wound around the magnetic core is made to coincide with the position of the insertion portion of the high voltage side terminal and the low voltage side terminal. There is an advantage that the end portion of the winding can be aligned with the high-voltage side terminal and the low-voltage side terminal without performing alignment. This makes it easy to connect the pulse transformer to the high-voltage side terminal and the low-voltage side terminal, thereby reducing the number of steps and automating the work, thereby reducing the manufacturing cost. .

（実施形態１）
以下に説明する実施形態では、図４に示すように、図８に示した回路を構成する部品のうち、パルストランスＰＴの一次側の部品を備える低圧回路ブロック２と、パルストランスＰＴを含む二次側の部品を備える高圧回路ブロック１とを、絶縁のための合成樹脂製の下面カバー３ａおよび上面カバー３ｂとからなるケース３に収納している。 (Embodiment 1)
In the embodiment described below, as shown in FIG. 4, among the parts constituting the circuit shown in FIG. 8, the low-voltage circuit block 2 including the primary part of the pulse transformer PT and the pulse transformer PT are included. The high-voltage circuit block 1 including the components on the next side is housed in a case 3 including a lower surface cover 3a and an upper surface cover 3b made of synthetic resin for insulation.

低圧回路ブロック２にはコンデンサＣとスイッチ素子ＳＧのほか、端子ＩＮ１，ＩＮ２の間に接続され高圧パルスが発生されたときのバイパスループを形成するバイパスコンデンサも実装される。図示例では低圧回路ブロック２を構成する部品をプリント基板５に実装しているが、リードフレームに実装することも可能である。   In addition to the capacitor C and the switch element SG, the low-voltage circuit block 2 is also mounted with a bypass capacitor that is connected between the terminals IN1 and IN2 and forms a bypass loop when a high-voltage pulse is generated. In the illustrated example, the components constituting the low-voltage circuit block 2 are mounted on the printed circuit board 5, but can also be mounted on a lead frame.

高圧回路ブロック１は、パルストランスＰＴの二次巻線Ｎ２が埋設された合成樹脂成形品の外殻体３０を有し、外殻体３０には高圧放電灯Ｌａの口金部４１が着脱可能に結合される口筒部３４が形成され、また、端子ＩＮ１〜ＩＮ３を構成するハーネス端子３５が設けられる。本実施形態の接続対象となる高圧放電灯Ｌａは口金部４１が円筒状に形成されているものであって、口金部４１の外周面に設けた外周電極（図示せず）と、口金部４１の中央部に設けたピン状の内周電極（図示せず）とを備える。したがって、口筒部３４は、内筒部３４ａと外筒部３４ｂとを同軸上に配置した二重筒を形成し、内筒部３４ａの内側には高圧放電灯Ｌａの内周電極を受けるための内側電極３６が配設され、外筒部３４ｂには高圧放電灯Ｌａの外周電極に接触する外側電極３７が配設される。内側電極３６は、パルストランスＰＴの二次巻線Ｎ２の一端に接続され、外側電極３７は端子ＩＮ２に接続される。   The high voltage circuit block 1 has a synthetic resin molded outer shell 30 in which the secondary winding N2 of the pulse transformer PT is embedded, and a cap 41 of the high pressure discharge lamp La can be attached to and detached from the outer shell 30. A mouth tube portion 34 to be coupled is formed, and a harness terminal 35 constituting the terminals IN1 to IN3 is provided. The high pressure discharge lamp La to be connected in the present embodiment has a base portion 41 formed in a cylindrical shape. An outer peripheral electrode (not shown) provided on the outer peripheral surface of the base portion 41 and a base portion 41. And a pin-shaped inner peripheral electrode (not shown) provided at the center of the. Accordingly, the mouth tube portion 34 forms a double tube in which the inner tube portion 34a and the outer tube portion 34b are coaxially arranged, and receives the inner peripheral electrode of the high-pressure discharge lamp La inside the inner tube portion 34a. The inner electrode 36 is disposed, and the outer tube portion 34b is disposed with an outer electrode 37 that contacts the outer peripheral electrode of the high-pressure discharge lamp La. The inner electrode 36 is connected to one end of the secondary winding N2 of the pulse transformer PT, and the outer electrode 37 is connected to the terminal IN2.

ケース３には、低圧回路ブロック２と高圧回路ブロック１とを電気的に接続した後に収納し、さらにケース３の内部空間の一部または全部にはシリコンのような絶縁樹脂が充填される。ケース３は、外部へのノイズの漏洩を抑制するために、下面シールドカバー４ａおよび上面シールドカバー４ｂからなるシールドケース４に収納され、図４（ｂ）のように高圧放電灯Ｌａが着脱可能に接続されるソケット部３１を備えた放電灯始動装置Ｘが形成される。ソケット部３１は、ケース３に設けた円筒状のソケット口３ｃと高圧回路ブロック１とにより構成され、コネクタ部３２はケース３に設けたコネクタ口３ｄと低圧回路ブロック２に設けたハーネス端子とにより構成される。   The case 3 is stored after the low-voltage circuit block 2 and the high-voltage circuit block 1 are electrically connected, and a part or all of the internal space of the case 3 is filled with an insulating resin such as silicon. The case 3 is housed in a shield case 4 composed of a lower shield cover 4a and an upper shield cover 4b in order to suppress noise leakage to the outside, and the high pressure discharge lamp La can be attached and detached as shown in FIG. A discharge lamp starting device X having a socket part 31 to be connected is formed. The socket part 31 is constituted by a cylindrical socket port 3 c provided in the case 3 and the high-voltage circuit block 1, and the connector part 32 is constituted by a connector port 3 d provided in the case 3 and a harness terminal provided in the low-voltage circuit block 2. Composed.

以下では、図１を参照して高圧回路ブロック１の組立手順について説明する。高圧回路ブロック１は、基本的には、パルストランスＰＴの一方の巻線である二次巻線１３を巻装した磁気コア１１と、磁気コア１１を保持するコアホルダ２０と、磁気コア１１を保持したコアホルダ２０を埋設した外殻体３０とにより構成される。磁気コア１１は、図１（ａ）のように円柱棒状であって、図１（ｂ）のように平角導線からなる二次巻線１３がエッジワイズ巻きで巻装される。磁気コア１１は１０００Ωｍ以上の固有抵抗を有するロッド型のフェライトコアであり、二次巻線１３は磁気コア１１の長手方向の両端部を残して巻装される。二次巻線１３の末端部１３ａ，１３ｂに接続する高圧側端子１４と低圧側端子１５とはコアホルダ２０に固定されており、磁気コア１１をコアホルダ２０に取り付けることにより、二次巻線１３の末端部１３ａ，１３ｂがそれぞれ高圧側端子１４と低圧側端子１５とに接続される。   Hereinafter, the assembly procedure of the high-voltage circuit block 1 will be described with reference to FIG. The high-voltage circuit block 1 basically holds the magnetic core 11 around which the secondary winding 13 that is one winding of the pulse transformer PT is wound, the core holder 20 that holds the magnetic core 11, and the magnetic core 11. And the outer shell 30 in which the core holder 20 is embedded. The magnetic core 11 has a cylindrical bar shape as shown in FIG. 1 (a), and a secondary winding 13 made of a flat conductor is wound by edgewise winding as shown in FIG. 1 (b). The magnetic core 11 is a rod-type ferrite core having a specific resistance of 1000 Ωm or more, and the secondary winding 13 is wound leaving both ends in the longitudinal direction of the magnetic core 11. The high voltage side terminal 14 and the low voltage side terminal 15 connected to the end portions 13 a and 13 b of the secondary winding 13 are fixed to the core holder 20, and by attaching the magnetic core 11 to the core holder 20, The end portions 13a and 13b are connected to the high voltage side terminal 14 and the low voltage side terminal 15, respectively.

高圧側端子１４は、図１（ｃ）のように、高圧放電灯Ｌａの内周電極を受けるために互いに対向する２枚の受けばね１４ａの側縁間を橋絡片１４ｂで一体に連結してあり、橋絡片１４ｂから延設された連結片１４ｃの一端部には二次巻線１３の一方の末端部１３ａを差し込む間隙を有した差込部１４ｄが連続一体に形成される。また、低圧側端子１５は、図１（ｅ）のように、平板状の主片１５ａの周縁の一箇所にハーネス端子３５の端子ＩＮ２に接続するための接続突片１５ｂを突設してあり、主片１５ａの周縁の他箇所に連結片１５ｃ（図２参照）を介して二次巻線１３の他方の末端部１３ｂを差し込む間隙を有した差込部１５ｄが連続一体に形成される。高圧側端子１４および低圧側端子１５は、それぞれ１枚の金属板により形成される。   As shown in FIG. 1C, the high voltage side terminal 14 is formed by integrally connecting the side edges of the two receiving springs 14a facing each other with a bridging piece 14b in order to receive the inner peripheral electrode of the high pressure discharge lamp La. An insertion portion 14d having a gap for inserting one end portion 13a of the secondary winding 13 is formed continuously and integrally at one end portion of the connection piece 14c extending from the bridging piece 14b. Further, as shown in FIG. 1E, the low-voltage side terminal 15 is provided with a projecting protrusion 15b for connecting to the terminal IN2 of the harness terminal 35 at one place on the periphery of the flat plate-like main piece 15a. An insertion portion 15d having a gap into which the other end portion 13b of the secondary winding 13 is inserted via a connecting piece 15c (see FIG. 2) is formed continuously and integrally at other locations on the periphery of the main piece 15a. The high-voltage side terminal 14 and the low-voltage side terminal 15 are each formed of a single metal plate.

各差込部１４ｄ，１５ｄは、図２に示すように、断面Ｕ字状に曲成されて二次巻線１３の末端部１３ａ，１３ｂを差し込む間隙を有している。差込部１４ｄ，１５ｄにおいて間隙を挟んで対向している部位の一方の側縁には連結片１４ｃ，１５ｃが連続する。また、他方の側縁には互いに対向する導入片１４ｅ，１５ｅが突設される。ここに、コアホルダ２０に高圧側端子１４と低圧側端子１５とを取り付けた状態で、差込部１４ｄ，１５ｄから導入片１４ｅ，１５ｅが突出する向きは互いに逆向きになる。   As shown in FIG. 2, each of the insertion portions 14 d and 15 d is bent in a U-shaped cross section and has a gap for inserting the end portions 13 a and 13 b of the secondary winding 13. The connecting pieces 14c and 15c are continuous with one side edge of a portion of the insertion portions 14d and 15d facing each other with a gap therebetween. Moreover, the introduction pieces 14e and 15e which oppose each other protrude from the other side edge. Here, in a state where the high voltage side terminal 14 and the low voltage side terminal 15 are attached to the core holder 20, the directions in which the introduction pieces 14e and 15e protrude from the insertion portions 14d and 15d are opposite to each other.

コアホルダ２０は、図１（ｄ）のように、磁気コア１１の長手方向の両端部にそれぞれ結合されるＵ字状に形成された２個の把持部２１ａ，２１ｂと、両把持部２１ａ，２１ｂを連結する背板部２２とを合成樹脂成形品により連続一体に形成したものであって、背板部２２の長手方向の一端部には受けばね１４ａを支持する支持台２３が形成される。コアホルダ２０は高圧側端子１４と同時一体に成形され、受けばね１４ａおよび連結片１４ｃの一部と橋絡片１４ｂとが支持台２３に埋設される。また、低圧側端子１５は図１（ｆ）のように、把持部２１ｂに形成された圧入スリット２１ｃに主片１５ａを圧入することによりコアホルダ２０に取り付けられる。ここに、低圧側端子１５は高圧側端子１４と同様にコアホルダ２０と同時一体に成形してもよい。   As shown in FIG. 1D, the core holder 20 includes two gripping portions 21a and 21b formed in a U-shape and coupled to both ends in the longitudinal direction of the magnetic core 11, and both gripping portions 21a and 21b. The back plate portion 22 for connecting the two is formed integrally with a synthetic resin molded product, and a support base 23 for supporting the receiving spring 14a is formed at one end portion of the back plate portion 22 in the longitudinal direction. The core holder 20 is molded integrally with the high-voltage side terminal 14, and a part of the receiving spring 14 a and the connecting piece 14 c and the bridging piece 14 b are embedded in the support base 23. Moreover, the low voltage | pressure side terminal 15 is attached to the core holder 20 by press-fitting the main piece 15a to the press-fit slit 21c formed in the holding part 21b, as shown in FIG.1 (f). Here, the low-voltage side terminal 15 may be formed integrally with the core holder 20 in the same manner as the high-voltage side terminal 14.

把持部２１ａ，２１ｂは、互いに対向する一対の保持片２４を備え、各保持片２４の先端部には互いに近付く向きに保持爪２４ａが突設される。各把持部２１ａ，２１ｂにおける両保持片２４の対向面間の最大間隔は、磁気コア１１の直径よりもやや大きく二次巻線１３の外径よりは小さくなるように設定され、両保持爪２４ａの最小間隔は磁気コア１１の直径よりも小さくなるように設定されている。また、両把持部２１ａ，２１ｂの間隔は磁気コア１１に巻装した二次巻線１３の巻き幅に一致するように設定されている。   The gripping portions 21a and 21b include a pair of holding pieces 24 facing each other, and holding claws 24a project from the distal end portions of the holding pieces 24 so as to approach each other. The maximum distance between the opposing surfaces of both holding pieces 24 in each gripping portion 21a, 21b is set to be slightly larger than the diameter of the magnetic core 11 and smaller than the outer diameter of the secondary winding 13, and both holding claws 24a. Is set to be smaller than the diameter of the magnetic core 11. Further, the interval between the gripping portions 21 a and 21 b is set so as to coincide with the winding width of the secondary winding 13 wound around the magnetic core 11.

つまり、図１（ｇ）のように、各把持部２１ａ，２１ｂに磁気コア１１の長手方向の各一端部を挿入したときに、保持片２４間に磁気コア１１が導入されるとともに、磁気コア１１の周面の一部に保持爪２４ａが当接してコアホルダ２０からの磁気コア１１の脱落が防止される。各把持部２１ａ，２１ｂでは一対の保持片２４の間に磁気コア１１の長手方向の各一端部をそれぞれ挟んで保持する。また、二次巻線１３が両把持部２１ａ，２１ｂの間に挟まれ各把持部２１ａ，２１ｂが二次巻線１３の各一端面に当接することにより、コアホルダ２０により保持された磁気コア１１に対する二次巻線１３の位置ずれが防止される。ここに、図３に示すように、保持爪２４ａは保持片２４の先端側ほど保持片２４からの突出寸法が小さくなるように傾斜する傾斜面２４ｂを備える。したがって、図３（ａ）に示すように、両保持片２４の間に磁気コア１１を導入するようにコアホルダ２０を磁気コア１１に押し付けるだけで、コアホルダ２０の弾性で両保持片２４の間隔が押し広げられることにより、図３（ｂ）のように両保持片２４の間に磁気コア１１が導入され、保持爪２４ａが磁気コア１１の周面に当接して磁気コア１１が保持される。なお、傾斜面２４ｂは保持片２４の延長方向に対してなす角度が１０〜４０度に設定される。   That is, as shown in FIG. 1 (g), when one end in the longitudinal direction of the magnetic core 11 is inserted into each gripping portion 21a, 21b, the magnetic core 11 is introduced between the holding pieces 24, and the magnetic core The holding claws 24 a come into contact with a part of the peripheral surface of the magnetic core 11 to prevent the magnetic core 11 from falling off the core holder 20. In each gripping part 21a, 21b, one end part in the longitudinal direction of the magnetic core 11 is sandwiched and held between a pair of holding pieces 24. Further, the secondary winding 13 is sandwiched between the gripping portions 21 a and 21 b, and the gripping portions 21 a and 21 b come into contact with the respective end surfaces of the secondary winding 13, whereby the magnetic core 11 held by the core holder 20. The displacement of the secondary winding 13 with respect to is prevented. Here, as shown in FIG. 3, the holding claw 24 a includes an inclined surface 24 b that is inclined so that the protruding dimension from the holding piece 24 becomes smaller toward the distal end side of the holding piece 24. Therefore, as shown in FIG. 3A, the core holder 20 is simply pressed against the magnetic core 11 so as to introduce the magnetic core 11 between the both holding pieces 24, and the spacing between the holding pieces 24 can be reduced by the elasticity of the core holder 20. By being spread out, the magnetic core 11 is introduced between the both holding pieces 24 as shown in FIG. 3B, and the holding claws 24 a come into contact with the peripheral surface of the magnetic core 11 to hold the magnetic core 11. In addition, the angle which the inclined surface 24b makes with respect to the extension direction of the holding piece 24 is set to 10 to 40 degrees.

ところで、上述したように、高圧側端子１４と低圧側端子１５とをコアホルダ２０に取り付けた状態では、差込部１４ｄ，１５ｄから導入片１４ｅ，１５ｅが突出する向きは互いに逆向きになる。また、導入片１４ｅ，１５ｅの突出方向は把持部２１ａ，２１ｂを含む面に平行であって、各把持部２１ａ，２１ｂの両保持片２４を結ぶ方向に略一致する。図１に示す例では、導入片１４ｅが下向きに突出し、導入片１５ｅが上向きに突出している。さらに、差込部１４ｄ，１５ｄは、コアホルダ２０の背板部２２に対して把持部２１ａ，２１ｂの背面側に配置され、かつ各把持部２１ａ，２１ｂにおける両保持片２４の両端間の寸法内に収まるように配置される。加えて、各差込部１４ｄ，１５ｄの間隙は背板部２２との対向面（つまり、二次巻線１３の末端部１３ａ，１３ｂが導入される側）が開放され、背板部２２から遠い端部は連続している。   Incidentally, as described above, in the state where the high voltage side terminal 14 and the low voltage side terminal 15 are attached to the core holder 20, the directions in which the introduction pieces 14e and 15e protrude from the insertion portions 14d and 15d are opposite to each other. The protruding direction of the introduction pieces 14e and 15e is parallel to the surface including the gripping portions 21a and 21b, and substantially coincides with the direction connecting the holding pieces 24 of the gripping portions 21a and 21b. In the example shown in FIG. 1, the introduction piece 14e protrudes downward, and the introduction piece 15e protrudes upward. Furthermore, the insertion portions 14d and 15d are arranged on the back side of the gripping portions 21a and 21b with respect to the back plate portion 22 of the core holder 20, and are within the dimension between both ends of the holding pieces 24 in the gripping portions 21a and 21b. It is arranged to fit in. In addition, the gap between each of the insertion portions 14d and 15d is opened on the surface facing the back plate portion 22 (that is, the side where the end portions 13a and 13b of the secondary winding 13 are introduced). The far end is continuous.

背板部２２には、差込部１４ｄ，１５ｄに対応する部位に切欠溝２５ａ，２５ｂが形成されており、背板部２２を挟んで差込部１４ｄ，１５ｄとは反対側に配置される磁気コア１１に巻装された二次巻線１３の末端部１３ａ，１３ｂを、切欠溝２５ａ，２５ｂに通して差込部１４ｄ，１５ｄに接続できるようにしてある。ここに、二次巻線１３の巻き方向は、二次巻線１３の巻き戻りの力によって末端部１３ａ，１３ｂが導入片１４ｅ，１５ｅを通して差込部１４ｄ，１５ｄに導入されるように設定されている。したがって、コアホルダ２０に磁気コア１１を取り付ける際には、二次巻線１３を治具によって保持した状態として上述のようにコアホルダ２０を磁気コア１１に押し付ければよく、磁気コア１１がコアホルダ２０の所定位置に装着されると、二次巻線１３の末端部１３ａ，１３ｂが差込部１４ｄ，１５ｄに自動的に導入される。二次巻線１３の末端部１３ａ，１３ｂが差込部１４ｄ，１５ｄに導入されると、差込部１４ｄ，１５ｄに当接することにより二次巻線１３の巻き戻りが防止される。   Notch grooves 25a and 25b are formed in the back plate portion 22 at portions corresponding to the insertion portions 14d and 15d, and are arranged on the opposite side of the insertion portions 14d and 15d with the back plate portion 22 interposed therebetween. The end portions 13a and 13b of the secondary winding 13 wound around the magnetic core 11 can be connected to the insertion portions 14d and 15d through the notch grooves 25a and 25b. Here, the winding direction of the secondary winding 13 is set so that the end portions 13a and 13b are introduced into the insertion portions 14d and 15d through the introduction pieces 14e and 15e by the rewinding force of the secondary winding 13. ing. Therefore, when attaching the magnetic core 11 to the core holder 20, the core holder 20 may be pressed against the magnetic core 11 as described above with the secondary winding 13 held by a jig. When mounted at a predetermined position, the end portions 13a and 13b of the secondary winding 13 are automatically introduced into the insertion portions 14d and 15d. When the end portions 13a and 13b of the secondary winding 13 are introduced into the insertion portions 14d and 15d, the secondary winding 13 is prevented from being unwound by coming into contact with the insertion portions 14d and 15d.

差込部１４ｄ，１５ｄに二次巻線１３の末端部１３ａ．１３ｂを差し込んだ状態（図１（ｇ）の状態）で末端部１３ａ，１３ｂを差込部１４ｄ，１５ｄにそれぞれ溶接ないし半田により接合し、その後、図１（ｈ）のように合成樹脂の外殻体３０を射出成形により形成して磁気コア１１およびコアホルダ２０を封止する。外殻体３０には口筒部３４およびハーネス端子３５が形成される。口筒部３４には内筒部３４ａが形成されており、外殻体３０は内筒部３４ａの内側に受けばね１４ａが位置するように形成される。外側電極３７および一次巻線１２は外殻体３０を射出成形により形成した後に取り付けられる。つまり、外側電極３７は外殻体３０に圧入固定され、一次巻線１２は外殻体３０において磁気コア１１が埋設されている部位の外周に巻装される。   The end portions 13a. The end portions 13a and 13b are joined to the insertion portions 14d and 15d by welding or soldering in a state in which 13b is inserted (the state shown in FIG. 1 (g)), and then the synthetic resin is removed as shown in FIG. 1 (h). The shell 30 is formed by injection molding to seal the magnetic core 11 and the core holder 20. A mouth tube portion 34 and a harness terminal 35 are formed in the outer shell 30. An inner tube portion 34a is formed in the mouth tube portion 34, and the outer shell 30 is formed so that the receiving spring 14a is located inside the inner tube portion 34a. The outer electrode 37 and the primary winding 12 are attached after the outer shell 30 is formed by injection molding. That is, the outer electrode 37 is press-fitted and fixed to the outer shell 30, and the primary winding 12 is wound around the outer periphery of the outer shell 30 where the magnetic core 11 is embedded.

以上説明したように、二次巻線１３に高圧側端子１４および低圧側端子１５を接続するにあたって、従来構成のような位置合わせ作業が不要であり、コアホルダ２０を磁気コア１１に押し付けて装着するだけで、二次巻線１３の末端部１３ａ，１３ｂと高圧側端子１４および低圧側端子１５との位置合わせ作業が完了するから、二次巻線１３を巻装した磁気コア１１と高圧側端子１４および低圧側端子１５との位置合わせを一方向から行うことができる。すなわち、組立作業の自動化が容易にでき、また組立工数の削減になる。その結果、放電灯始動装置Ｘを低コストで提供することが可能になる。   As described above, when connecting the high-voltage side terminal 14 and the low-voltage side terminal 15 to the secondary winding 13, alignment work as in the conventional configuration is unnecessary, and the core holder 20 is pressed against the magnetic core 11 and attached. The magnetic core 11 and the high-voltage side terminal around which the secondary winding 13 is wound can be obtained because the alignment work between the end portions 13a and 13b of the secondary winding 13 and the high-voltage side terminal 14 and the low-voltage side terminal 15 is completed. 14 and the low voltage side terminal 15 can be aligned from one direction. That is, the assembly operation can be easily automated and the number of assembly steps can be reduced. As a result, the discharge lamp starting device X can be provided at a low cost.

（実施形態２）
本実施形態は、図５（ａ）に示すように、各把持部２１ａ，２１ｂにおける保持片２４の対向面の先端部に、保持片２４の先端側ほど互いの間隔を広げるように傾斜した導入面２４ｃを設けたものである。また、高圧側端子１４と低圧側端子１５とにそれぞれ設けた差込部１４ｄ，１５ｄにおいて二次巻線１３の末端部１３ａ，１３ｂが導入される部位（背板部２２との対向面）には間隙の開口幅を広げるように傾斜した導入片１４ｆ，１５ｆが設けられている（図５（ｂ）参照）。導入面２４ｃおよび導入片１４ｆ，１５ｆの開き角度は１０〜４０度に設定される。導入面２４ｃは磁気コア１１を把持部２１ａ，２１ｂに導入する際の誘い込み部として機能し、磁気コア１１の長手方向において二次巻線１３と把持部２１ａ，２１ｂとの位置が多少ずれていても、二次巻線１３が導入面２４ｃに当接することによって両把持部２１ａ，２１ｂの間に二次巻線１３を誘い込むことができる。また、導入片１４ｆ，１５ｆは二次巻線１３の末端部１３ａ，１３ｂを差込部１４ｄ，１５ｄに導入する際の誘い込み部として機能し、二次巻線１３の末端部１３ａ，１３ｂと差込部１４ｄ，１５ｄとの位置が磁気コア１１の長手方向において多少ずれていても、末端部１３ａ，１３ｂが導入片１４ｆ，１５ｆに当接することによって差込部１４ｄ，１５ｄに末端部１３ａ，１３ｂを誘い込むことができる。このように、誘い込み部を設けていることにより、コアホルダ２０と磁気コア１１との結合作業が一層容易になる。他の構成および機能は実施形態１と同様である。なお、図５（ｂ）のように、差込部１４ｄ，１５ｄの対向面間に凸部１５ｇを打ち出しておくことにより、二次巻線１３の末端部１３ａ，１３ｂを仮保持することができる。この構成は実施形態１でも同様である。 (Embodiment 2)
In this embodiment, as shown in FIG. 5 (a), the leading ends of the opposing surfaces of the holding pieces 24 in the gripping portions 21a and 21b are inclined so as to increase the distance from each other toward the leading end side of the holding pieces 24. A surface 24c is provided. Further, in the insertion portions 14d and 15d provided in the high-voltage side terminal 14 and the low-voltage side terminal 15 respectively, the portions where the end portions 13a and 13b of the secondary winding 13 are introduced (opposite surfaces to the back plate portion 22). Are provided with introduction pieces 14f and 15f inclined so as to widen the opening width of the gap (see FIG. 5B). The opening angle of the introduction surface 24c and the introduction pieces 14f and 15f is set to 10 to 40 degrees. The introduction surface 24c functions as a guide portion when the magnetic core 11 is introduced into the gripping portions 21a and 21b, and the positions of the secondary winding 13 and the gripping portions 21a and 21b are slightly shifted in the longitudinal direction of the magnetic core 11. In addition, the secondary winding 13 can be guided between the gripping portions 21a and 21b by the secondary winding 13 coming into contact with the introduction surface 24c. The introduction pieces 14f and 15f function as lead-in portions when the end portions 13a and 13b of the secondary winding 13 are introduced into the insertion portions 14d and 15d, and are different from the end portions 13a and 13b of the secondary winding 13. Even if the positions of the insertion portions 14d and 15d are slightly shifted in the longitudinal direction of the magnetic core 11, the end portions 13a and 13b come into contact with the introduction pieces 14f and 15f, so that the insertion portions 14d and 15d are connected to the end portions 13a and 13b. Can be tempted. Thus, by providing the guiding portion, the coupling work between the core holder 20 and the magnetic core 11 becomes easier. Other configurations and functions are the same as those of the first embodiment. As shown in FIG. 5B, the end portions 13a and 13b of the secondary winding 13 can be temporarily held by projecting the convex portion 15g between the facing surfaces of the insertion portions 14d and 15d. . This configuration is the same as in the first embodiment.

図６は上述した放電灯始動装置Ｘを内蔵した照明装置としての自動車用の前照灯Ｚであって、前面（図６の左面）および後面（図６の右面）に開口を有する灯体ハウジング５０に放電灯始動装置Ｘを高圧放電灯Ｌａとともに収納し、灯体ハウジング５０の前面の開口を透光材料（たとえば、ガラス）からなる灯体レンズ５１で覆っている。また、灯体ハウジング５０の後面の開口は着脱可能なキャップ５２で閉塞され、キャップ５２を外すことにより高圧放電灯Ｌａの交換を可能にしてある。灯体ハウジング５０の中には支持台５３で支持された反射鏡５４が配置され、さらに反射鏡５４の向きを微調整するために光軸調整ねじ５５が配置されている。   FIG. 6 shows an automotive headlamp Z as a lighting device incorporating the above-described discharge lamp starting device X, and a lamp housing having openings on the front surface (left surface in FIG. 6) and the rear surface (right surface in FIG. 6). 50, the discharge lamp starting device X is housed together with the high-pressure discharge lamp La, and the opening on the front surface of the lamp housing 50 is covered with a lamp lens 51 made of a translucent material (for example, glass). The opening on the rear surface of the lamp housing 50 is closed with a removable cap 52, and the high pressure discharge lamp La can be replaced by removing the cap 52. In the lamp housing 50, a reflecting mirror 54 supported by a support base 53 is disposed, and an optical axis adjusting screw 55 is disposed for finely adjusting the direction of the reflecting mirror 54.

放電灯始動装置Ｘは、灯体ハウジング５０の外側下部に配置された放電灯点灯回路Ｙとハーネス５６を介して接続され放電灯点灯装置を構成する。すなわち、放電灯始動装置Ｘは、ハーネス端子３５を備えたコネクタ部３２を有し、放電灯点灯回路Ｙにも同様のコネクタ部が形成されており、コネクタ部３２に着脱可能に接続されるハーネス５６を介して放電灯点灯回路Ｙと放電灯始動回路Ｘとが電気的に接続される。放電灯点灯回路Ｙはインバータ回路を内蔵し、カーバッテリから電源線５７を介して供給される直流１２Ｖを電源として動作する。図６に示した前照灯Ｚは、図７に示すように、車両Ｖに搭載して用いられる。なお、図７では上述した放電灯始動装置Ｘを前照灯に用いた例を示しているが、補助灯のような車両Ｖの他の照明装置に上述した放電灯始動装置Ｘを用いることも可能である。   The discharge lamp starting device X is connected to a discharge lamp lighting circuit Y disposed at the lower outer portion of the lamp housing 50 via a harness 56 to constitute a discharge lamp lighting device. That is, the discharge lamp starting device X includes a connector portion 32 having a harness terminal 35, and a similar connector portion is formed in the discharge lamp lighting circuit Y. The harness is detachably connected to the connector portion 32. The discharge lamp lighting circuit Y and the discharge lamp starting circuit X are electrically connected via 56. The discharge lamp lighting circuit Y incorporates an inverter circuit, and operates using DC 12V supplied from the car battery via the power line 57 as a power source. The headlamp Z shown in FIG. 6 is mounted on a vehicle V and used as shown in FIG. In addition, although the example which used the discharge lamp starting device X mentioned above for the headlamp is shown in FIG. 7, the discharge lamp starting device X mentioned above can also be used for the other illuminating devices of the vehicle V like an auxiliary lamp. Is possible.

本発明の実施形態１における組立手順を示す工程図である。It is process drawing which shows the assembly procedure in Embodiment 1 of this invention. 同上に用いるコアホルダの斜視図である。It is a perspective view of the core holder used for the same as the above. 同上の組立手順の一部を示す側面図である。It is a side view which shows a part of assembly procedure same as the above. 同上の分解斜視図である。It is an exploded perspective view same as the above. （ａ）は本発明の実施形態２を示す分解平面図、（ｂ）は同上の要部斜視図である。(A) is an exploded top view which shows Embodiment 2 of this invention, (b) is a principal part perspective view same as the above. 本発明の照明装置を示す断面図である。It is sectional drawing which shows the illuminating device of this invention. 本発明の車両を示す一部切欠した斜視図である。1 is a partially cutaway perspective view showing a vehicle of the present invention. 一般的な放電灯始動装置の回路図である。It is a circuit diagram of a general discharge lamp starting device. 一般的な放電灯始動装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of a general discharge lamp starting device. 従来の組立手順を示す工程図である。It is process drawing which shows the conventional assembly procedure. 同上の組立手順の一部を示す斜視図である。It is a perspective view which shows a part of assembly procedure same as the above.

符号の説明Explanation of symbols

１１ 磁気コア
１３ 二次巻線
１３ａ，１３ｂ 末端部
１４ 高圧側端子
１４ｄ 差込部
１４ｆ 導入片
１５ 低圧側端子
１５ｄ 差込部
１５ｆ 導入片
２０ コアホルダ
２１ａ，２１ｂ 把持部
２２ 背板部
２４ 保持片
２４ｃ 導入面
ＰＴ パルストランス
Ｖ 車両
Ｘ 放電灯始動装置
Ｙ 放電灯点灯回路
Ｚ 前照灯（照明装置） DESCRIPTION OF SYMBOLS 11 Magnetic core 13 Secondary winding 13a, 13b Terminal part 14 High voltage side terminal 14d Insertion part 14f Introduction piece 15 Low voltage side terminal 15d Insertion part 15f Introduction piece 20 Core holder 21a, 21b Holding part 22 Back board part 24 Holding piece 24c Introduction surface PT Pulse transformer V Vehicle X Discharge lamp starting device Y Discharge lamp lighting circuit Z Headlamp (lighting device)

Claims (6)

棒状の磁気コアに巻線が巻装されたパルストランスを備え、巻線の一方の末端部に高圧側端子を接続し他方の末端部に低圧側端子が接続される放電灯始動装置であって、巻線が巻装された磁気コアの長手方向の両端部がそれぞれ装着され巻線を間に挟む２個の把持部と両把持部を連結する背板部とを一体に備える合成樹脂成形品のコアホルダを備え、コアホルダには差込部を有した高圧側端子および低圧側端子が固定されており、各把持部は磁気コアの長手方向の各端部をそれぞれ挟んで保持する一対の保持片をそれぞれ備え、差込部は把持部によりコアホルダに保持された磁気コアに巻装されている巻線の末端部を差し込む間隙を有し、当該間隙は巻線の末端部が導入される側が開放されていることを特徴とする放電灯始動装置。   A discharge lamp starting device comprising a pulse transformer in which a winding is wound around a rod-shaped magnetic core, a high-pressure side terminal connected to one end of the winding, and a low-pressure side terminal connected to the other end A synthetic resin molded product integrally comprising two gripping portions each having both ends in the longitudinal direction of the magnetic core on which the windings are wound and sandwiching the windings, and a back plate portion connecting the gripping portions. The core holder has a high-voltage side terminal and a low-voltage side terminal having an insertion portion fixed to the core holder, and each gripping portion holds a pair of holding pieces sandwiching each longitudinal end portion of the magnetic core. The insertion part has a gap for inserting the end part of the winding wound around the magnetic core held by the core holder by the grip part, and the gap is open on the side where the end part of the winding is introduced A discharge lamp starting device characterized in that 前記差込部のうち前記巻線の末端部が導入される部位には間隙の開口幅を広げるように傾斜した導入片が設けられていることを特徴とする請求項１記載の放電灯始動装置。   2. The discharge lamp starting device according to claim 1, wherein an introduction piece inclined so as to widen an opening width of the gap is provided in a portion of the insertion portion where the end portion of the winding is introduced. . 前記把持部の対向面であって前記保持片の先端部には、保持片の先端ほど互いの間隔を広げるように傾斜した導入面が形成されていることを特徴とする請求項１または請求項２記載の放電灯始動装置。   The introduction surface that is inclined so as to increase the interval between the leading ends of the holding pieces is formed at the front end portion of the holding piece, which is a surface facing the grip portion. The discharge lamp starting device according to 2. 請求項１ないし請求項３のいずれか１項に記載の放電灯始動装置を用いて放電灯を点灯させることを特徴とする放電灯点灯装置。   A discharge lamp lighting device that lights a discharge lamp using the discharge lamp starting device according to any one of claims 1 to 3. 請求項４記載の放電灯点灯装置を用いることを特徴とする照明装置。   An illumination device using the discharge lamp lighting device according to claim 4. 請求項５記載の照明装置を搭載したことを特徴とする車両。   A vehicle comprising the lighting device according to claim 5.
JP2004374663A 2004-12-24 2004-12-24 Discharge lamp starting device, discharge lamp lighting device, lighting device, vehicle Expired - Fee Related JP4635601B2 (en)

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