JPH04303905A - Transformer for high-brightness discharge-lamp triggering use - Google Patents
Transformer for high-brightness discharge-lamp triggering useInfo
- Publication number
- JPH04303905A JPH04303905A JP3092832A JP9283291A JPH04303905A JP H04303905 A JPH04303905 A JP H04303905A JP 3092832 A JP3092832 A JP 3092832A JP 9283291 A JP9283291 A JP 9283291A JP H04303905 A JPH04303905 A JP H04303905A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- voltage output
- coil bobbin
- discharge lamp
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004804 winding Methods 0.000 claims abstract description 118
- 239000010410 layer Substances 0.000 claims abstract description 23
- 239000011229 interlayer Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 17
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000010292 electrical insulation Methods 0.000 description 5
- 238000010125 resin casting Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000006355 external stress Effects 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、高輝度放電灯トリガ用
トランスに関し、高圧出力巻線は、コイルボビンの巻枠
部上で軸方向の一端側から他端側に向って連続するよう
に整列巻されたコイル層を、絶縁層を介して積層した層
間巻となっていて、複数の線材を一組として同時に巻装
すると共に、端末で互いに接続することにより、絶縁耐
圧が高く、直流抵抗分が低く低損失であり、しかも小型
で、高圧出力巻線と低圧入力巻線との間の巻方向長さ調
整の容易な高輝度放電灯トリガ用トランスを提供できる
ようにしたものである。[Industrial Application Field] The present invention relates to a transformer for triggering a high-intensity discharge lamp, in which high-voltage output windings are arranged so as to be continuous from one end to the other end in the axial direction on the winding frame of a coil bobbin. It is an interlayer winding in which the wound coil layers are laminated with an insulating layer in between. By simultaneously winding multiple wires as a set and connecting them to each other at the terminals, the insulation voltage is high and the DC resistance is high. To provide a transformer for triggering a high-intensity discharge lamp, which has a low loss and is small in size, and can easily adjust the length in the winding direction between a high-voltage output winding and a low-voltage input winding.
【０００２】0002
【従来の技術】高輝度放電灯は、ガス中で放電させるこ
とによって光を発生するものであり、ハロゲン・ランプ
の１／３程度の消費電力でありながら、その３〜４倍の
光束を得ることができ、自動車用前照灯としてきわめて
利用価値の高いものである。高輝度放電灯は上述のよう
に優れた特性を有しているけれども、点灯させるには、
電極間に例えば１０〜２５ｋＶ程度の高圧トリガ電圧を
印加してトリガしなければならない。その手段として、
２００〜５００Ｖ程度の直流電圧をスイッチングし、ス
イッチング出力をトリガ用トランスに供給して、１０〜
２５ｋＶ程度の高圧トリガ電圧を得る。[Prior Art] A high-intensity discharge lamp generates light by discharging it in a gas, and consumes about 1/3 of the power of a halogen lamp, yet produces 3 to 4 times the luminous flux. This makes it extremely useful as a headlamp for automobiles. Although high-intensity discharge lamps have excellent characteristics as mentioned above, in order to turn them on,
A high-voltage trigger voltage of, for example, about 10 to 25 kV must be applied between the electrodes for triggering. As a means of doing so,
Switching a DC voltage of about 200 to 500 V and supplying the switching output to a trigger transformer,
Obtain a high trigger voltage of about 25kV.
【０００３】図７は高輝度放電灯点灯回路の基本的な構
成を説明するための回路図である。図において、１は直
流電源、２は制御回路、３は高輝度放電灯、４は高圧発
生回路、５は高輝度放電灯トリガ用トランス、６は検出
回路である。FIG. 7 is a circuit diagram for explaining the basic configuration of a high-intensity discharge lamp lighting circuit. In the figure, 1 is a DC power supply, 2 is a control circuit, 3 is a high intensity discharge lamp, 4 is a high voltage generation circuit, 5 is a high intensity discharge lamp trigger transformer, and 6 is a detection circuit.
【０００４】直流電源１は、一般には、バッテリやＤＣ
／ＤＣコンバータ等を備えて構成され、放電を維持する
のに必要な２００〜５００Ｖの直流電圧を出力する。制
御回路２は直流電源１から供給される直流電力をスイッ
チングして交流に変換すると共に、検出回路６の検出信
号、例えば電流検出信号に基づいて、電流制御もしくは
電力制御を行なう。[0004] The DC power source 1 is generally a battery or a DC power source.
/DC converter, etc., and outputs a DC voltage of 200 to 500V necessary to maintain discharge. The control circuit 2 switches the DC power supplied from the DC power supply 1 and converts it into AC power, and also performs current control or power control based on a detection signal from the detection circuit 6, for example, a current detection signal.
【０００５】高輝度放電灯３は、例えば、石英ガラス等
で構成された管３１の内部に稀ガス、水銀及び金属片の
ハロゲン化物等が入っており、管３１の内部で距離を隔
てて電極３２、３３を対向させた構造になっている。こ
のような高輝度放電灯３はメタルハライドランプと称さ
れる。The high-intensity discharge lamp 3 includes a tube 31 made of, for example, quartz glass, which contains rare gas, mercury, halide metal pieces, etc., and electrodes are placed at a distance inside the tube 31. It has a structure in which 32 and 33 are opposed to each other. Such a high intensity discharge lamp 3 is called a metal halide lamp.
【０００６】高圧発生回路４は、高輝度放電灯トリガ用
トランス５及びトランジスタ等のスイッチ素子を含んで
構成され、高圧トリガ電圧を発生する。高輝度放電灯ト
リガ用トランス５は、高輝度放電灯３と直列に入る高圧
出力巻線５２と低圧入力巻線５１とを有する。The high voltage generating circuit 4 includes a transformer 5 for triggering a high intensity discharge lamp and a switching element such as a transistor, and generates a high voltage trigger voltage. The high-intensity discharge lamp trigger transformer 5 has a high-voltage output winding 52 and a low-voltage input winding 51 that are connected in series with the high-intensity discharge lamp 3.
【０００７】回路動作において、高圧発生回路４で得ら
れた１０ｋＶ〜２５ｋＶ程度の高圧トリガ電圧電圧が高
輝度放電灯３の電極３２ー３３間に印加される。この高
圧パルスにより放電灯３がトリガされ、電極３２ー３３
間にアーク放電が生じ、管３１中のガスを通して放電が
発生し、放電によって発生した熱によって金属片のハロ
ゲン化物が気化され、光が放射される。放電開始時から
定常状態に至る範囲では、定常時の５倍〜１０倍の大電
流を流して光量を速やかに増大させる。In the circuit operation, a high-voltage trigger voltage of about 10 kV to 25 kV obtained by the high-voltage generating circuit 4 is applied between the electrodes 32 and 33 of the high-intensity discharge lamp 3. This high-voltage pulse triggers the discharge lamp 3, and the electrodes 32-33
An arc discharge occurs during this time, and a discharge is generated through the gas in the tube 31. The heat generated by the discharge vaporizes the halide of the metal piece, and light is emitted. In the range from the start of discharge to a steady state, a current 5 to 10 times as large as the steady state is passed to quickly increase the amount of light.
【０００８】[0008]
【発明が解決しようとする課題】上述したように、高輝
度放電灯トリガ用トランスでは、トリガ時に１０ｋＶ〜
２５ｋＶ程度の高電圧が加わるので、高度の絶縁耐圧を
確保する必要がある。しかも、放電開始時から定常状態
に至る範囲で、定常時の５倍〜１０倍の大電流を流す必
要があるので、高圧出力巻線の直流抵抗分をできるだけ
小さくしなければならない。[Problems to be Solved by the Invention] As mentioned above, in the high-intensity discharge lamp trigger transformer, at the time of triggering, the
Since a high voltage of about 25 kV is applied, it is necessary to ensure a high level of dielectric strength. Moreover, since it is necessary to flow a current five to ten times as large as in the steady state in the range from the start of discharge to the steady state, the DC resistance of the high voltage output winding must be made as small as possible.
【０００９】そこで、本発明の課題は、絶縁耐圧が高く
、直流抵抗分が低く低損失であり、しかも小型で、高圧
出力巻線と低圧入力巻線との間の巻方向長さ調整の容易
な高輝度放電灯トリガ用トランスを提供することである
。Therefore, the object of the present invention is to provide a device with high dielectric strength, low direct current resistance, low loss, small size, and easy adjustment of the length in the winding direction between the high voltage output winding and the low voltage input winding. An object of the present invention is to provide a transformer for triggering a high-intensity discharge lamp.
【００１０】0010
【課題を解決するための手段】上述した課題解決のため
、本発明は、コイルボビンと、前記コイルボビンに巻装
された巻線と、前記コイルボビンに結合されたコアとを
含む高輝度放電灯トリガ用トランスであって、前記コイ
ルボビンは、前記巻線を巻装する筒状の巻枠部を有して
おり、前記巻線は、低圧入力巻線と高圧出力巻線とを含
んでおり、前記高圧出力巻線は、前記コイルボビンの前
記巻枠部上で軸方向の一端側から他端側に向って連続す
るように整列巻されたコイル層を、絶縁層を介して積層
した層間巻であって、複数の線材を一組として同時に巻
装すると共に、端末で互いに接続してあり、前記低圧入
力巻線は、前記高圧出力巻線の上に巻装されていること
を特徴とする。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a high-intensity discharge lamp trigger comprising a coil bobbin, a winding wound around the coil bobbin, and a core coupled to the coil bobbin. In the transformer, the coil bobbin has a cylindrical winding frame portion around which the winding is wound, the winding includes a low voltage input winding and a high voltage output winding, and the high voltage The output winding is an interlayer winding in which coil layers are sequentially wound in an aligned manner from one end to the other end in the axial direction on the winding frame portion of the coil bobbin, and are laminated with an insulating layer interposed therebetween. , a plurality of wire rods are simultaneously wound as a set and connected to each other at the terminals, and the low voltage input winding is wound on the high voltage output winding.
【００１１】[0011]
【作用】高圧出力巻線は、コイルボビンの巻枠部上で軸
方向の一端側から他端側に向って連続するように整列巻
されたコイル層を、絶縁層を介して積層した層間巻であ
る。層間巻によると、各コイル層間に絶縁フィルム等を
用いて電気絶縁性の高い絶縁層が形成できること、絶縁
層間にあるコイル層の周りに絶縁樹脂を注型し絶縁耐圧
を向上させ得ること等の理由から、セクション巻と比較
して、高い絶縁耐圧を確保できるようになる。しかも、
高圧出力巻線の上に低圧入力巻線を巻装してあるので、
高電位の高圧出力巻線が低電位の低圧入力巻線によって
覆われた巻線構造になり、電気絶縁処理が容易になると
共に、絶縁耐圧特性が一層良好になる。[Operation] The high-voltage output winding is an interlayer winding in which coil layers are sequentially wound in an aligned manner from one end to the other end in the axial direction on the winding frame of the coil bobbin, and are laminated with an insulating layer in between. be. According to interlayer winding, an insulating layer with high electrical insulation can be formed between each coil layer by using an insulating film, etc., and an insulating resin can be cast around the coil layer between the insulating layers to improve the dielectric strength voltage. For this reason, it is possible to ensure a higher dielectric strength voltage compared to section winding. Moreover,
Since the low voltage input winding is wound on top of the high voltage output winding,
The winding structure is such that a high voltage output winding having a high potential is covered by a low voltage input winding having a low potential, which facilitates electrical insulation and further improves dielectric strength characteristics.
【００１２】高圧出力巻線は、複数の線材を一組として
同時に巻装すると共に、端末で互いに接続してあるので
、直流抵抗分が線材数に対応して低下する。このため、
放電開始時から定常状態に至る範囲で、定常時の５倍〜
１０倍の大電流を流す必要のあるこの種の高輝度放電灯
トリガ用トランスにおいて、損失を低減させ、発熱量を
小さくすることが可能になる。[0012] Since the high-voltage output winding is made of a plurality of wire rods that are simultaneously wound as a set and connected to each other at the terminals, the DC resistance decreases in proportion to the number of wire rods. For this reason,
From the start of discharge to steady state, 5 times more than steady state
In this type of transformer for triggering a high-intensity discharge lamp, which requires a current 10 times as large to flow, it is possible to reduce loss and reduce the amount of heat generated.
【００１３】直流抵抗分低下は断面積の大きな単線を用
いることによっても可能であるが、この場合には巻厚み
が増大する。これに対して、複数の線材を一組として同
時に巻装すると共に、端末で互いに接続した場合は、組
となる複数の線材が横並びとなり、巻厚みが単線を用い
た場合よりも小さくなるので、巻厚みの小さい高輝度放
電灯トリガ用トランスが得られる。It is also possible to reduce the direct current resistance by using a single wire with a large cross-sectional area, but in this case the winding thickness increases. On the other hand, if multiple wire rods are wound simultaneously as a set and connected to each other at the terminals, the multiple wire rods forming the set will be lined up side by side, and the winding thickness will be smaller than when using a single wire. A high-intensity discharge lamp trigger transformer with a small winding thickness can be obtained.
【００１４】また、各線材は、単線巻の場合よりも細い
線径となるので、巻線作業が容易になる。更に、高圧出
力巻線と低圧入力巻線との間の軸方向長さ調整が容易に
なる等の利点も得られる。Furthermore, since each wire has a smaller wire diameter than in the case of single wire winding, the winding work becomes easier. Furthermore, advantages such as easy adjustment of the axial length between the high-voltage output winding and the low-voltage input winding can be obtained.
【００１５】[0015]
【実施例】図１は本発明に係る高輝度放電灯トリガ用ト
ランスの部分破断面図、図２は図１の左側面図、図３は
図１の右側面図である。５０はコア、５１は低圧入力巻
線、５２は高圧出力巻線、５３はコイルボビン、５４は
層間絶縁層、５８は高電圧ケーブル、５９は導体片、６
０は絶縁樹脂である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway sectional view of a transformer for triggering a high-intensity discharge lamp according to the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is a right side view of FIG. 50 is a core, 51 is a low voltage input winding, 52 is a high voltage output winding, 53 is a coil bobbin, 54 is an interlayer insulation layer, 58 is a high voltage cable, 59 is a conductor piece, 6
0 is an insulating resin.
【００１６】コア５０はコイルボビン５３の内径孔５３
０の内部に挿入されている。図示のコア５０は両端が開
放端となっていて開磁路を構成していてる。ただし、Ｕ
ーＵ型、ＵーＩ型、ＥーＥ型またはＥーＩ型等のコアに
よる閉磁路としてもよい。The core 50 has an inner diameter hole 53 of the coil bobbin 53.
It is inserted inside 0. The illustrated core 50 has both ends open, forming an open magnetic path. However, U
- A closed magnetic circuit may be formed by a U-type, UI-type, EE-type, or EI-type core.
【００１７】コイルボビン５３は耐電圧特性に優れた絶
縁樹脂で構成されており、内径孔５３０を有して筒状に
形成された巻枠部５３１を備えている。巻枠部５３１の
上には、高圧出力巻線５２及び低圧入力巻線５１が順次
に巻装されている。The coil bobbin 53 is made of an insulating resin with excellent withstand voltage characteristics, and includes a winding frame portion 531 formed into a cylindrical shape with an inner diameter hole 530. On the winding frame portion 531, a high voltage output winding 52 and a low voltage input winding 51 are sequentially wound.
【００１８】高圧出力巻線５２はコイルボビン５３に巻
装されており、低圧入力巻線５１は高圧出力巻線５２の
上に巻装されている。５１１、５１２は低圧入力巻線５
１の端末、５２１、５２２は高圧出力巻線５２の端末で
ある。The high voltage output winding 52 is wound around a coil bobbin 53, and the low voltage input winding 51 is wound over the high voltage output winding 52. 511 and 512 are low voltage input windings 5
1 terminals 521 and 522 are the terminals of the high voltage output winding 52.
【００１９】高圧出力巻線５２はコイルボビン５３の巻
枠部５３１上で軸方向の一端側から他端側に向って連続
するように整列巻されたコイル層を、絶縁フィルム等の
絶縁層５４を介して積層した層間巻となっている。層間
巻によると、各コイル層間に絶縁フィルム等を用いて電
気絶縁性の高い絶縁層５４が形成できること、絶縁層５
４ー５４間にあるコイル層の周りに絶縁樹脂を注型し絶
縁耐圧を向上させ得ること等の理由から、セクション巻
と比較して、高い絶縁耐圧を確保できる。The high-voltage output winding 52 has a coil layer wound in a continuous manner from one end in the axial direction to the other end on the winding frame 531 of the coil bobbin 53, and an insulating layer 54 such as an insulating film. It is an interlayer winding layered with layers in between. According to interlayer winding, an insulating layer 54 with high electrical insulation can be formed between each coil layer by using an insulating film, etc.
Because insulation resin can be cast around the coil layer between 4 and 54 to improve the dielectric strength, a higher dielectric strength can be ensured compared to section winding.
【００２０】また、コイルボビン５３に高圧出力巻線５
２を巻装し、その上に低圧入力巻線５１を巻装した構造
により、高電位の高圧出力巻線５２が低電位の低圧入力
巻線５１によって覆われた巻線構造になり、電気絶縁処
理が容易になると共に、絶縁耐圧特性が一層良好になる
。Further, the high voltage output winding 5 is attached to the coil bobbin 53.
2 is wound, and the low voltage input winding 51 is wound thereon, resulting in a winding structure in which the high voltage output winding 52 with a high potential is covered by the low voltage input winding 51 with a low potential, resulting in electrical insulation. Processing becomes easier and dielectric strength characteristics are improved.
【００２１】高圧出力巻線５２は、図４にも示すように
、２本の線材Ｃ１、Ｃ２を一組として同時に巻装すると
共に、線材Ｃ１、Ｃ２を端末５２１または５２２で接続
してある。このため、直流抵抗分が線材数に対応して低
下し、放電開始時から定常状態に至る範囲で、定常時の
５倍〜１０倍の大電流を流す必要のあるこの種の高輝度
放電灯トリガ用トランスにおいて、損失を低減させ、損
失に伴う発熱量を小さくすることが可能になる。しかも
、組となる線材Ｃ１、Ｃ２が横並びとなり、巻厚みが単
線を用いた場合よりも小さくなるので、全体の巻厚みの
小さい高輝度放電灯トリガ用トランスが得られる。As shown in FIG. 4, the high-voltage output winding 52 has two wires C1 and C2 wound together as a set, and the wires C1 and C2 are connected at a terminal 521 or 522. For this reason, the DC resistance decreases in proportion to the number of wires, and this type of high-intensity discharge lamp requires a current that is 5 to 10 times as large as the steady state to flow from the start of discharge to the steady state. In the trigger transformer, it is possible to reduce loss and reduce the amount of heat generated due to loss. Moreover, since the wire rods C1 and C2 forming a pair are arranged side by side, and the winding thickness is smaller than when a single wire is used, a high-intensity discharge lamp triggering transformer with a small overall winding thickness can be obtained.
【００２２】また、各線材Ｃ１、Ｃ２は、単線巻の場合
よりも細い線径となるので、巻線作業が容易になる。更
に、高圧出力巻線５２と低圧入力巻線５１との間の軸方
向長さ調整が容易になる等の利点も得られる。線材数は
、図示では２本であって、いわゆるバイファイラ巻とな
っているが、それ以上の本数であってもよい。Furthermore, since each of the wires C1 and C2 has a smaller wire diameter than in the case of single wire winding, the winding work becomes easier. Further, advantages such as easy adjustment of the axial length between the high voltage output winding 52 and the low voltage input winding 51 can be obtained. Although the number of wire rods is two in the illustration, which is a so-called bifilar winding, it may be a larger number.
【００２３】高圧出力巻線５２は、インダクタンス値が
１００μＨ〜４ｍＨの範囲となるように設定するのが望
ましい。両端が開放端となっている開磁路型のコア５０
を用いた実施例の場合、巻数を４８ターン〜２８０ター
ンとすることにより、上述のインダクタンス値を確保で
きる。上述のように、高圧出力巻線５２のインダクタン
ス値を１００μＨ〜４ｍＨの範囲に設定すると、インダ
クタンス成分による高圧トリガ電圧の波形の鈍化を抑え
、高輝度放電灯３を効率よく点灯できる。The high voltage output winding 52 is preferably set so that its inductance value is in the range of 100 μH to 4 mH. An open magnetic path type core 50 with both ends open.
In the case of the embodiment using , the above-mentioned inductance value can be ensured by setting the number of turns to 48 to 280 turns. As described above, when the inductance value of the high-voltage output winding 52 is set in the range of 100 μH to 4 mH, the waveform of the high-voltage trigger voltage is suppressed from becoming blunt due to the inductance component, and the high-intensity discharge lamp 3 can be efficiently lit.
【００２４】コイルボビン５３の内径孔５３０の内部に
は、導体片５９が配置されている。導体片５９は、コア
５０の端面５０１と受板５３４との間に配置されてコア
５０の端面５０１に押し付けられていて、更に、高電圧
ケーブル５８の高電圧線５８２に半田付け等の手段によ
って接続されている。高電圧ケーブル５８は高電圧線５
８２を絶縁被覆５８１で被覆した構造となっている。高
電圧線５８２及び導体片５９の接続部分には高圧出力巻
線５２の端末５２１が接続されている。この構造により
、コア５０に対して導体片５９を電気的、機械的に接触
させ、コア５０の電位を出力電圧に安定に保つことがで
きる。A conductor piece 59 is arranged inside the inner diameter hole 530 of the coil bobbin 53. The conductor piece 59 is arranged between the end surface 501 of the core 50 and the receiving plate 534 and pressed against the end surface 501 of the core 50, and is further attached to the high voltage line 582 of the high voltage cable 58 by means such as soldering. It is connected. The high voltage cable 58 is the high voltage line 5
82 is covered with an insulating coating 581. The terminal 521 of the high voltage output winding 52 is connected to the connection portion between the high voltage line 582 and the conductor piece 59. With this structure, the conductor piece 59 can be brought into electrical and mechanical contact with the core 50, and the potential of the core 50 can be stably maintained at the output voltage.
【００２５】導体片５９は、バネ性及び導電性の良好な
金属板材で構成されていて、バネ部５９１を有するよう
に湾曲させてある。５９２は掛止片である。導体片５９
のバネ部５９１は、内径孔５３０内において、コア５０
の端面５０１と受板５３４の端面との間に配置され、両
者間で圧縮されてコア５０の端面５０１に押し付けられ
ている。導体片５９は、受板５３４に設けられた開口部
５３６を通って、内径孔５３０の外部に導出され、孔５
９３を挿通させた高電圧ケーブル５８の高電圧線５８２
に半田付け等の手段によって接続されている。上記構造
により、導体片５９のバネ部５９１がコア５０に確実に
接触し、コア５０が安定電位に確実に保持される。The conductor piece 59 is made of a metal plate material with good springiness and conductivity, and is curved so as to have a spring portion 591. 592 is a hook piece. Conductor piece 59
The spring portion 591 is inserted into the core 50 in the inner diameter hole 530.
is arranged between the end surface 501 of the core 50 and the end surface of the receiving plate 534, and is compressed between the two and pressed against the end surface 501 of the core 50. The conductor piece 59 passes through an opening 536 provided in the receiving plate 534, is led out to the outside of the inner diameter hole 530, and is inserted into the hole 5.
High voltage wire 582 of high voltage cable 58 through which 93 is inserted
It is connected by means such as soldering. With the above structure, the spring portion 591 of the conductor piece 59 reliably contacts the core 50, and the core 50 is reliably held at a stable potential.
【００２６】導体片５９は、一端側が受板５３４に設け
られた孔５３６を緩く貫通して外部に導かれている。従
って、導体片５９は孔５３６内で動くことができる。こ
の可動性のために、コイルボビン５３の外部において、
導体片５９の一端側に高電圧ケーブル５８の高電圧線５
８２を接続する場合、導体片５９を少し動かして、半田
付け等の接続作業を行なうことができるようになり、導
体片５９に対する高電圧線５８２の接続作業が容易にな
る。また、接続後の製造組立作業、例えば絶縁樹脂の注
型工程において不可避の外部ストレスを、導体片５９の
可動性により吸収し、接続部分における接続不良や破断
を防止できる。One end of the conductor piece 59 loosely passes through a hole 536 provided in the receiving plate 534 and is guided to the outside. Therefore, the conductor piece 59 can move within the hole 536. Due to this mobility, outside the coil bobbin 53,
The high voltage wire 5 of the high voltage cable 58 is connected to one end of the conductor piece 59.
82, the conductor piece 59 can be moved a little to perform connection work such as soldering, which facilitates the connection work of the high voltage line 582 to the conductor piece 59. In addition, the movability of the conductor piece 59 absorbs unavoidable external stress during manufacturing and assembly work after connection, such as the casting process of insulating resin, thereby preventing poor connection or breakage at the connection portion.
【００２７】巻枠部５３１の軸方向の両端のそれぞれに
は、径方向に突出する突片５３２、５３３が設けられて
いる。これらの突片５３２、５３３は、高圧出力巻線５
２及び低圧入力巻線５１の巻崩れを防止する鍔部として
の働きの他に、絶縁樹脂注型時の位置決め片となる腕片
を支持する支持体としての作用もなす。突片５３２、５
３３うち、少なくとも一方、例えば突片５３２は、巻線
５１、５２の巻端面と対向する位置に設けられた開口部
５５１を有する。突片５３２には、更に、スリット５５
２が設けられている。スリット５５２は高圧出力巻線５
２の最外周よりも内側まで達するように設けてある。突
片５３３の略中央部には、スリット５６１を有するケー
ブル取付開口部５６２が設けられており、ケーブル取付
開口部５６２に高電圧ケーブル５８が取付けられている
。Projections 532 and 533 projecting in the radial direction are provided at both axial ends of the winding frame portion 531, respectively. These projecting pieces 532 and 533 are connected to the high voltage output winding 5.
In addition to functioning as a flange to prevent the windings 2 and low-voltage input winding 51 from collapsing, it also functions as a support for supporting arm pieces that serve as positioning pieces when insulating resin is cast. Projection piece 532, 5
At least one of the protruding pieces 532, for example, the protruding piece 532 has an opening 551 provided at a position facing the winding end surfaces of the windings 51 and 52. The protruding piece 532 further includes a slit 55.
2 is provided. The slit 552 is the high voltage output winding 5
It is provided so as to reach inside the outermost periphery of 2. A cable attachment opening 562 having a slit 561 is provided approximately at the center of the projecting piece 533, and the high voltage cable 58 is attached to the cable attachment opening 562.
【００２８】突片５３２、５３３の下部には、最外側の
巻線を構成する低圧入力巻線５１の外周面の付近におい
て、互いに対向し径方向の両側に突出する腕片（５７１
、５７２）、（５７３、５７４）が併設されている。
腕片（５７１、５７２）、（５７３、５７４）は上面（
図において）がほぼ同一平面上に位置し、ほぼ同一長さ
で突出するように形成されている。At the lower part of the projecting pieces 532 and 533, arm pieces (571
, 572), (573, 574) are also installed. The arm pieces (571, 572) and (573, 574) are on the upper surface (
(in the figure) are located on substantially the same plane and are formed to protrude with substantially the same length.
【００２９】絶縁樹脂６０は全体を被覆するように設け
られている。図５及び図６に絶縁樹脂注型工程を示す。
図示するように、離型ケース８の内部に本発明に係るト
リガ用トランスを配置し、矢印ａで示す如く絶縁樹脂を
注型する。ここで、高圧出力巻線５２の端面と対向する
位置に開口部５５１を有するので、絶縁樹脂が、矢印ａ
１ に示す如く流入し、開口部５５１を通して高圧出力
巻線５２の周りにも確実に充填される。このため、絶縁
耐圧が向上する。矢印ｂは樹脂注型時の空気の抜け方向
を示している。The insulating resin 60 is provided to cover the entire structure. 5 and 6 show the insulating resin casting process. As shown in the figure, a trigger transformer according to the present invention is placed inside a mold release case 8, and an insulating resin is cast as shown by arrow a. Here, since the opening 551 is provided at a position facing the end surface of the high-voltage output winding 52, the insulating resin is
1, the liquid flows through the opening 551 to ensure that the area around the high-voltage output winding 52 is also filled. Therefore, the dielectric strength is improved. Arrow b indicates the direction in which air escapes during resin casting.
【００３０】コイルボビン５３は、軸方向の両端のそれ
ぞれに腕片（５７１、５７２）、（５７３、５７４）を
有しており、これらは巻線５１、５２の外周面の付近に
おいて、互いに対向し径方向の両側に突出するように併
設されているので、絶縁樹脂注型時に、腕片（５７１、
５７２）、（５７３、５７４）を位置決め片として離型
ケース８の側面板８１の端縁上に掛け止めて、離型ケー
ス８内に位置決めし、この状態で絶縁樹脂を注型できる
。これにより、全体に所定の厚みを有する絶縁樹脂を確
実に形成し、所定の絶縁耐圧を有する高輝度放電灯トリ
ガ用トランスを得ることができる。The coil bobbin 53 has arm pieces (571, 572) and (573, 574) at each end in the axial direction, and these arms face each other near the outer peripheral surfaces of the windings 51 and 52. Since they are installed so as to protrude on both sides in the radial direction, the arm pieces (571,
572) and (573, 574) are hooked onto the edge of the side plate 81 of the mold release case 8 as positioning pieces to position them within the mold release case 8, and in this state, the insulating resin can be cast. As a result, it is possible to reliably form an insulating resin having a predetermined thickness over the entire structure and obtain a high-intensity discharge lamp trigger transformer having a predetermined dielectric strength.
【００３１】しかも、高圧用導体５９は、一端側が受板
５３４に設けられた孔５３６を緩く貫通して外部に導か
れていて、可動性を有するために、絶縁樹脂の注型工程
において不可避の外部ストレスを、高圧用導体５９の可
動性により吸収し、接続部分における接続不良や破断を
防止できる。Furthermore, one end of the high-voltage conductor 59 loosely passes through a hole 536 provided in the receiving plate 534 and is guided to the outside, so that it has movability, which is unavoidable in the insulating resin casting process. External stress can be absorbed by the movability of the high-voltage conductor 59, thereby preventing connection failure or breakage at the connection portion.
【００３２】また、コイルボビン５３の内径孔５３０は
、一端側がストレート状に抜けていて、他端側の受板５
３４の中央部に開口部５３５が設けられているので、コ
イルボビン５３の内径孔５３０の内部にあるコア５０の
周りにも絶縁樹脂が確実に充填され、コア５０がコイル
ボビン５３に確実に一体化される。Further, the inner diameter hole 530 of the coil bobbin 53 has a straight hole at one end, and a receiving plate 5 at the other end.
Since the opening 535 is provided in the center of the coil bobbin 53, the insulating resin is reliably filled around the core 50 inside the inner diameter hole 530 of the coil bobbin 53, and the core 50 is reliably integrated into the coil bobbin 53. Ru.
【００３３】[0033]
【発明の効果】以上述べたように、本発明に係る高輝度
放電灯トリガ用トランスによれば、次のような効果が得
られる。
（ａ）高圧出力巻線は、コイルボビンの巻枠部上で軸方
向の一端側から他端側に向って連続するように整列巻さ
れたコイル層を、絶縁層を介して積層した層間巻となっ
ているから、絶縁耐圧の高い高輝度放電灯トリガ用トラ
ンスを提供できる。
（ｂ）低圧入力巻線は、高圧出力巻線の上に低圧入力巻
線を巻装してあるので、電気絶縁処理が容易で、絶縁耐
圧特性の優れた高輝度放電灯トリガ用トランスを提供で
きる。
（ｃ）高圧出力巻線は、複数の線材を一組として同時に
巻装し端末を同電位となるように接続してあるので、放
電開始時から定常状態に至る範囲で、定常時の５倍〜１
０倍の大電流を流す必要のあるこの種の高輝度放電灯ト
リガ用トランスにおいて、損失を低減させ、損失に伴う
発熱量を小さくすることが可能になる。
（ｄ）高圧出力巻線は、複数の線材を一組として同時に
巻装し端末を同電位となるように接続してあるので、巻
厚みの小さい高輝度放電灯トリガ用トランスを提供でき
る。
（ｅ）高圧出力巻線は、複数の線材を一組として同時に
巻装し端末で互いに接続してあるので、巻線作業が容易
で、しかも、高圧出力巻線と低圧入力巻線との間の軸方
向長さ調整の容易な高輝度放電灯トリガ用トランスを提
供できる。As described above, the transformer for triggering a high-intensity discharge lamp according to the present invention provides the following effects. (a) The high-voltage output winding is an interlayer winding in which coil layers are continuously wound in an aligned manner from one end to the other end in the axial direction on the winding frame of a coil bobbin, and are laminated with an insulating layer interposed therebetween. Therefore, it is possible to provide a high-intensity discharge lamp trigger transformer with high dielectric strength. (b) Since the low-voltage input winding is wound on top of the high-voltage output winding, electrical insulation treatment is easy and a high-intensity discharge lamp trigger transformer with excellent dielectric strength characteristics is provided. can. (c) The high-voltage output winding is made of multiple wires that are wound together as a set and connected so that the terminals are at the same potential. ~1
In this type of high-intensity discharge lamp trigger transformer that requires a zero times large current to flow, it is possible to reduce the loss and reduce the amount of heat generated due to the loss. (d) Since the high-voltage output winding is made of a plurality of wires that are wound together as a set and connected so that the ends are at the same potential, it is possible to provide a transformer for triggering a high-intensity discharge lamp with a small winding thickness. (e) The high-voltage output winding is made of multiple wires that are wound together as a set and connected to each other at the terminals, so the winding work is easy and there is a gap between the high-voltage output winding and the low-voltage input winding. It is possible to provide a high-intensity discharge lamp trigger transformer whose axial length can be easily adjusted.
【図１】本発明に係る高輝度放電灯トリガ用トランスの
部分破断面図である。FIG. 1 is a partially cutaway sectional view of a high-intensity discharge lamp trigger transformer according to the present invention.
【図２】図１に示した高輝度放電灯トリガ用トランスの
左側面図である。FIG. 2 is a left side view of the high-intensity discharge lamp trigger transformer shown in FIG. 1;
【図３】図１に示した高輝度放電灯トリガ用トランスの
右側面図である。3 is a right side view of the high-intensity discharge lamp trigger transformer shown in FIG. 1. FIG.
【図４】本発明に係る高輝度放電灯トリガ用トランスの
巻線構造を示す図である。FIG. 4 is a diagram showing a winding structure of a transformer for triggering a high-intensity discharge lamp according to the present invention.
【図５】本発明に係る高輝度放電灯トリガ用トランスの
絶縁樹脂注型工程を示す図である。FIG. 5 is a diagram showing an insulating resin casting process for a high-intensity discharge lamp trigger transformer according to the present invention.
【図６】本発明に係る高輝度放電灯トリガ用トランスの
絶縁樹脂注型工程を示す図である。FIG. 6 is a diagram showing an insulating resin casting process for a high-intensity discharge lamp trigger transformer according to the present invention.
【図７】高輝度放電灯点灯回路の基本的な構成を説明す
るための回路図である。FIG. 7 is a circuit diagram for explaining the basic configuration of a high-intensity discharge lamp lighting circuit.
５０ コア５１
低圧入力巻線５２
高圧出力巻線５３
コイルボビン５２１、５２２ 端末
Ｃ１、Ｃ２ 線材50 core 51
Low voltage input winding 52
High voltage output winding 53
Coil bobbin 521, 522 Terminal C1, C2 Wire rod
Claims (2)
巻装された巻線と、前記コイルボビンに結合されたコア
とを含む高輝度放電灯トリガ用トランスであって、前記
コイルボビンは、前記巻線を巻装する筒状の巻枠部を有
しており、前記巻線は、低圧入力巻線と高圧出力巻線と
を含んでおり、前記高圧出力巻線は、前記コイルボビン
の前記巻枠部上で軸方向の一端側から他端側に向って連
続するように整列巻されたコイル層を、絶縁層を介して
積層した層間巻であって、複数の線材を一組として同時
に巻装すると共に、端末で互いに接続してあり、前記低
圧入力巻線は、前記高圧出力巻線の上に巻装されている
ことを特徴とする高輝度放電灯トリガ用トランス。1. A high-intensity discharge lamp trigger transformer including a coil bobbin, a winding wound around the coil bobbin, and a core coupled to the coil bobbin, wherein the coil bobbin has a winding wound around the coil bobbin. The coil bobbin has a cylindrical winding frame portion, the winding includes a low voltage input winding and a high voltage output winding, and the high voltage output winding is axially mounted on the winding frame portion of the coil bobbin. This is an interlayer winding in which coil layers that are continuously wound in a line from one end to the other are laminated with an insulating layer interposed between them. A transformer for triggering a high-intensity discharge lamp, characterized in that the low-voltage input winding is wound on the high-voltage output winding.
値が１００μＨ〜４ｍＨの範囲にあることを特徴とする
請求項１に記載の高輝度放電灯トリガ用トランス。2. The transformer for triggering a high-intensity discharge lamp according to claim 1, wherein the high-voltage output winding has an inductance value in a range of 100 μH to 4 mH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3092832A JPH04303905A (en) | 1991-03-30 | 1991-03-30 | Transformer for high-brightness discharge-lamp triggering use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3092832A JPH04303905A (en) | 1991-03-30 | 1991-03-30 | Transformer for high-brightness discharge-lamp triggering use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04303905A true JPH04303905A (en) | 1992-10-27 |
Family
ID=14065409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3092832A Withdrawn JPH04303905A (en) | 1991-03-30 | 1991-03-30 | Transformer for high-brightness discharge-lamp triggering use |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04303905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7528693B2 (en) * | 2004-09-10 | 2009-05-05 | Osram Gesellschaft Mit Beschraenkter Haftung | Transformer and starting device having a transformer, and high pressure discharge lamp having a transformer |
-
1991
- 1991-03-30 JP JP3092832A patent/JPH04303905A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7528693B2 (en) * | 2004-09-10 | 2009-05-05 | Osram Gesellschaft Mit Beschraenkter Haftung | Transformer and starting device having a transformer, and high pressure discharge lamp having a transformer |
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| Date | Code | Title | Description |
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| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980514 |