WO2000018195A1 - Dispositif d'eclairage pour lampe a decharge - Google Patents

Dispositif d'eclairage pour lampe a decharge Download PDF

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Publication number
WO2000018195A1
WO2000018195A1 PCT/JP1998/004272 JP9804272W WO0018195A1 WO 2000018195 A1 WO2000018195 A1 WO 2000018195A1 JP 9804272 W JP9804272 W JP 9804272W WO 0018195 A1 WO0018195 A1 WO 0018195A1
Authority
WO
WIPO (PCT)
Prior art keywords
discharge lamp
socket
transformer
coil
lighting device
Prior art date
Application number
PCT/JP1998/004272
Other languages
English (en)
Japanese (ja)
Inventor
Fumihiro Minami
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP1998/004272 priority Critical patent/WO2000018195A1/fr
Priority to JP2000571722A priority patent/JP4230112B2/ja
Publication of WO2000018195A1 publication Critical patent/WO2000018195A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details

Definitions

  • the present invention relates to a discharge lamp lighting device applied to a vehicle headlight device and the like.
  • the circuit configuration of a discharge lamp lighting device applied to a vehicle headlight device or the like that uses a discharge lamp such as a metal eight-light lamp as a light source is as follows: Converts the DC output to AC and generates an inverter circuit 3 that controls and stabilizes the voltage and power required by the discharge lamp 2, and generates a high voltage, for example, 20 KV, required to start the discharge lamp 2.
  • An igniter circuit 4 and a starting device 6 having a transformer 5 for generating high voltage are provided.
  • the power switch (not shown) is closed and the DC output of the power supply 1 is supplied to the inverter circuit 3.
  • the inverter circuit 3 converts the direct current to AC and supplies it to the starting device 6.
  • the starting device 6 generates a high voltage, for example, 20 KV, by the inverter circuit 4 and the high-voltage generating transformer 5 based on the input alternating current, and applies the high voltage to the discharge lamp 2 to start it.
  • the specified power for example, 30 W
  • the starting device 6 that generates a high voltage, that is, It is necessary to keep the user from touching the evening circuit 4 and the high-voltage generating transformer 5 directly. Therefore, the starting device 6 is integrally assembled to a socket portion on which the discharge lamp 2 is mounted.
  • a high-voltage generating transformer 5 having a large-sized closed magnetic circuit core is provided on the outer periphery of the socket 7a in the socket 7, and the components of the inverter circuit 4 are connected to the socket.
  • the high voltage generating transformer 5 having a closed magnetic circuit core is provided on the outer periphery of the socket 7a in the socket 7 as shown in FIG.
  • Japanese Patent Application Laid-Open No. 8-315630 discloses a transformer provided with components of an ignition circuit 4 on the outer periphery of a transformer.
  • the conventional discharge lamp lighting device is configured as described above, safety against high voltage when attaching and detaching the socket is ensured.However, in the configuration shown in FIG. 2, the igniter circuit 4 is still not used. The rear part of the socket 7 protrudes only at the part where the components are assembled, and the configuration shown in FIG. 3 is thin, but the socket 7 has a large diameter, so that the socket cannot be made smaller and thinner. .
  • the conventional high-voltage generating transformer 5 because you are using a closed magnetic path core, the magnetic flux easy although inductance flow is high, the supply to the discharge lamp 2, for example 4 0 0 H Z square wave switching point I As shown in Fig. 4 (a), a period during which no current flows occurs, and the discharge lamp turns off momentarily.
  • the present invention has been made to solve the above-described problems, and has an object to provide a discharge lamp lighting device capable of providing a socket with a small and thin configuration and supplying sufficient power to a discharge lamp as a load. The purpose is to gain.
  • Another object is to reduce eddy currents generated in the core of the high-voltage generating transformer, improve high-frequency characteristics, and improve efficiency.
  • the primary coil and the secondary coil are continuously wound with the same wire, thereby simplifying the winding process and facilitating the acquisition and handling of the wire. Disclosure of the invention
  • the present invention provides a socket for mounting a discharge lamp, a high-voltage generating transformer having an arcuate core disposed on the outer periphery of the socket, and a high-voltage generating transformer on the outer periphery of the socket.
  • a high-voltage generating circuit means which is concentrically arranged so as to surround the socket together with the transformer is provided, so that the socket can be made small and thin.
  • the transformer for generating high voltage having an arc-shaped core has a smaller inductance component than when a closed magnetic circuit core is used, and can improve the efficiency, thus providing sufficient power for the discharge lamp as a load. Can be supplied.
  • the present invention provides a basic structure of a transformer for generating a high voltage, comprising: a laminated core bent in an arc shape; a pobin provided on an outer surface of the laminated core; and a primary and a secondary coil wound on the pobin. It depends on the laminated core As a result, the eddy current generated in the laminated core is reduced, the high-frequency characteristics are improved, the efficiency is improved, and the withstand voltage between the core and the coil can be reliably ensured by the pobin.
  • the die can be easily removed at the time of forming the pobin.
  • the present invention provides a coil winding groove formed on a pobin, in which a primary coil is partially wound and a secondary coil is wound in a single layer in parallel with the remaining coil winding groove, so that the resistance between the coils is improved. The voltage can be ensured, and the winding process is simplified.
  • the present invention provides a primary coil in which a plurality of wires are bundled, and one of the wires is used as a secondary coil.
  • the next coil can be continuously wound with the same wire, and the coil winding process can be simplified.
  • Fig. 1 is a power supply circuit diagram for a discharge lamp.
  • Fig. 2 is a longitudinal sectional view of a conventional socket incorporating a high-voltage generating transformer and an inductive circuit component.
  • Fig. 3 is a high-voltage generating transformer and an inductor.
  • Fig. 4 is a longitudinal sectional view of another conventional socket incorporating circuit components, Fig. 4 is a waveform diagram of the discharge lamp voltage and current depending on the magnitude of the inductance of the high-voltage generating transformer, and
  • Fig. 5 is FIG. 6 is an exploded perspective view showing the discharge lamp lighting device of the invention, FIG.
  • FIG. 6 is a longitudinal sectional view of a socket part in which a discharge lamp is mounted, and a high-voltage generating transformer and a circuit component of the inverter circuit are incorporated.
  • FIG. 8 is an explanatory view of a transformer for generating high voltage
  • (a) is a perspective view of a laminated core
  • (b) is a perspective view of a bobbin molded on an outer surface of the laminated core
  • (c) is a perspective view.
  • Primary coil on pobin 2
  • FIG. 9 is a perspective view of a high-voltage generating transformer provided with a secondary coil
  • FIG. 9 is an explanatory diagram showing a winding state of a primary coil and a secondary coil.
  • FIG. 5 is an exploded perspective view showing the discharge lamp lighting device of the present invention, wherein 11 is a discharge lamp, 12 is a socket for mounting the base 11a of the discharge lamp 11, and a socket to be described later. It incorporates a high-voltage generation transformer and igniter circuit components as high-voltage generation circuit means.
  • 13 is a power supply circuit including an inverter circuit for converting DC to AC
  • 14 is a plug inserted into the mounting port 13 a of the power supply circuit
  • 15 is a plug 14 attached to one end and 14 attached to the other end Is a lead wire connected to a circuit terminal in the socket 12
  • 16 is a lead wire having one end connected to the power supply circuit section 13 and the other end having a plug 17 for power supply connection.
  • Fig. 6 is a vertical sectional view of a socket 12 with a discharge lamp 11 attached and a transformer 18 for high-voltage generation and a igniter circuit component 19, and Fig. 7 shows a socket 12 with a lid 1 It is the side view which removed 2b.
  • the socket 12 basically has a socket portion 12a and a lid 12b, and an electrode mounting portion 12a for mounting a socket electrode (not shown) is provided in the center of the socket portion 12a. 1, and a mounting port 12a-2 for mounting the base 11a of the discharge lamp 11 is formed facing the electrode mounting section 12a-1.
  • the outer peripheral portion of the electrode mounting portion 12a-1 has a storage space 20 for a high-voltage generating transformer 18 having an arc-shaped laminated core in a range of approximately 120 °.
  • the installation space 21 of the igniter circuit component 19 is formed concentrically with the storage space 20. After the high voltage generating transformer 18 and the igniter circuit component 19 are assembled, the socket section is formed. Since the lid 12 b is attached to 12 a, the circuit element 19 is pressed and held by the mounting board 22.
  • FIG. 8 is an explanatory view of a transformer for generating a high voltage.
  • a transformer for example, a plurality of 0.1 mm silicon steel sheets are laminated and bent in an arc, or a plurality of arcs are formed. Laminated silicon steel sheets are laminated to form a laminated core 23.
  • the bobbin 24 is molded outside the laminated core 23 by insert molding.
  • a plurality of coil winding grooves 24a are formed on the three sides except for the arc-shaped inner surface of the pobin 24, that is, on both side surfaces and the outer surface at substantially constant intervals so as to extend outward.
  • the primary coil 25 is partially connected to the coil winding groove 24a of the pobin 24, and the secondary coil 26 is parallelly mounted to the remaining coil winding groove 24a.
  • the wound coil is reliably prevented from moving to the left and right by the groove wall.
  • the coil to be wound is such that a plurality of wires 27 are bundled and wound for the primary coil 25, and the wire 27 is wound as it is for the secondary coil 26.
  • the primary coil 25 and the secondary coil 26 can be continuously wound by the same wire 27.
  • a power switch (not shown) is closed, and a DC output is supplied from a power source (not shown) to the inverter circuit of the power supply circuit section 13.
  • This inverter circuit converts DC to AC.
  • Idanai circuit components 19 A high voltage, for example, 20 KV, is generated in the secondary coil 26 by flowing through the primary coil 25 of the pressure generating transformer 18, and this high voltage is applied to the discharge lamp 2 through the socket electrode.
  • the discharge lamp is started, and after the start, the power supply circuit section 13 operates so as to supply the specified power, for example, 30 W, to the discharge lamp 2 to maintain the discharge.
  • the transformer 18 for generating high voltage uses an arc-shaped open magnetic circuit core, the magnetic flux is difficult to pass through and the inductance is small, so that the discharge lamp 2 is used as shown in Fig. 4 (b).
  • a 400 Hz rectangular wave current flowing through the device flows without interruption, and therefore, the generation of electromagnetic waves based on the current ripple is small.
  • the high voltage generating transformer 18 is provided on the outer periphery of the socket portion 12 a in the socket 12, and the high voltage generating transformer 18 is connected to the high voltage generating transformer 18. Since the circuit elements 19 are arranged in a concentric arc, no protruding portion is formed at the rear of the socket 12 and the diameter of the socket is not increased. 8 and the igniter circuit component 19 can be assembled together to ensure safety against high voltage, and the socket 12 can be made small and thin.
  • the transformer 18 for high voltage generation incorporated in the socket 12 uses an arcuate core forming an open magnetic circuit, the inductance component is smaller than when a normal closed magnetic circuit core is used. It is possible to reduce the generation of electromagnetic waves and to easily supply sufficient electric power to the discharge tube as a load. In addition, since a laminated silicon core is used, eddy current flowing through the core can be reduced, and high-frequency characteristics can be improved.
  • a plurality of coil winding grooves are formed on both sides and the outer surface of at least the pobin 24 except for the inner surface of the circular arc, so that the mold after molding is formed. Easy removal.
  • the primary coil 25 was partially wound around a part of the coil winding groove 24a of the pobin 24, and the secondary coil 26 was wound around the remaining coil winding groove 24a in a single layer.
  • the insulation between the eyebrows of the second order is not required, and the winding process can be simplified as compared with the case where the first and second orders are repeatedly wound.
  • the wire itself is a secondary coil
  • a large current can easily flow through the primary coil
  • the primary coil and the secondary coil are made of the same wire.
  • the coil can be wound continuously, and the coil winding process can be simplified. Since the same wire is used for the primary coil and the secondary coil, it is easy to obtain and handle the wire.
  • the high-voltage generating transformer and the high-voltage generating circuit component mounted on the board are concentrically arranged on the outer periphery of the socket so as to surround the socket.
  • the sockets are arranged in a shape, ensuring safety against high voltages and enabling the socket to be made small and thin.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention porte sur un dispositif d'éclairage d'une lampe à décharge, qui comporte une douille mince et de faible encombrement destiné à accueillir la lampe à décharge. La douille présente un transformateur arciforme circulaire qui génère une tension élevée sur la périphérie extérieure de la douille, et des pièces d'un circuit arciforme circulaire qui génèrent une tension élevée sur la périphérie extérieure de la douille, de manière concentrique par rapport au transformateur, et entourent la douille pour la préserver des tensions élevées.
PCT/JP1998/004272 1998-09-22 1998-09-22 Dispositif d'eclairage pour lampe a decharge WO2000018195A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP1998/004272 WO2000018195A1 (fr) 1998-09-22 1998-09-22 Dispositif d'eclairage pour lampe a decharge
JP2000571722A JP4230112B2 (ja) 1998-09-22 1998-09-22 放電灯点灯装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/004272 WO2000018195A1 (fr) 1998-09-22 1998-09-22 Dispositif d'eclairage pour lampe a decharge

Publications (1)

Publication Number Publication Date
WO2000018195A1 true WO2000018195A1 (fr) 2000-03-30

Family

ID=14209038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/004272 WO2000018195A1 (fr) 1998-09-22 1998-09-22 Dispositif d'eclairage pour lampe a decharge

Country Status (2)

Country Link
JP (1) JP4230112B2 (fr)
WO (1) WO2000018195A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002343589A (ja) * 2001-05-18 2002-11-29 Matsushita Electric Works Ltd 高電圧パルス発生器
EP1244185A3 (fr) * 2001-03-21 2003-11-12 Hirose Electric Co., Ltd. Douille de lampe
WO2006119799A1 (fr) * 2005-05-11 2006-11-16 Vogt Electronic Components Gmbh Transformateur d'allumage et culot pour une lampe a decharge
DE102006034373A1 (de) * 2006-04-21 2007-10-25 Tridonicatco Gmbh & Co. Kg Überlagerungszündgerät für ein Vorschaltgerät
WO2011039801A1 (fr) * 2009-09-29 2011-04-07 三菱電機株式会社 Transformateur d'allumage et dispositif d'allumage de lampe à décharge n'utilisant pas de mercure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07114806A (ja) * 1993-10-15 1995-05-02 Matsushita Electric Works Ltd 車両用前照灯装置
JPH0864013A (ja) * 1994-08-19 1996-03-08 Ichikoh Ind Ltd 車両用灯具
JPH08298190A (ja) * 1995-02-28 1996-11-12 Matsushita Electric Works Ltd 放電灯点灯装置
JPH08315631A (ja) * 1995-05-12 1996-11-29 Matsushita Electric Works Ltd 車両用前照灯装置
JPH08315624A (ja) * 1995-05-12 1996-11-29 Matsushita Electric Works Ltd 車両用前照灯装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07114806A (ja) * 1993-10-15 1995-05-02 Matsushita Electric Works Ltd 車両用前照灯装置
JPH0864013A (ja) * 1994-08-19 1996-03-08 Ichikoh Ind Ltd 車両用灯具
JPH08298190A (ja) * 1995-02-28 1996-11-12 Matsushita Electric Works Ltd 放電灯点灯装置
JPH08315631A (ja) * 1995-05-12 1996-11-29 Matsushita Electric Works Ltd 車両用前照灯装置
JPH08315624A (ja) * 1995-05-12 1996-11-29 Matsushita Electric Works Ltd 車両用前照灯装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1244185A3 (fr) * 2001-03-21 2003-11-12 Hirose Electric Co., Ltd. Douille de lampe
JP2002343589A (ja) * 2001-05-18 2002-11-29 Matsushita Electric Works Ltd 高電圧パルス発生器
JP4547834B2 (ja) * 2001-05-18 2010-09-22 パナソニック電工株式会社 高電圧パルス発生器
WO2006119799A1 (fr) * 2005-05-11 2006-11-16 Vogt Electronic Components Gmbh Transformateur d'allumage et culot pour une lampe a decharge
DE102006034373A1 (de) * 2006-04-21 2007-10-25 Tridonicatco Gmbh & Co. Kg Überlagerungszündgerät für ein Vorschaltgerät
WO2011039801A1 (fr) * 2009-09-29 2011-04-07 三菱電機株式会社 Transformateur d'allumage et dispositif d'allumage de lampe à décharge n'utilisant pas de mercure
CN102428529A (zh) * 2009-09-29 2012-04-25 三菱电机株式会社 点火器用变压器及不使用水银的放电灯用点亮装置
JPWO2011039801A1 (ja) * 2009-09-29 2013-02-21 三菱電機株式会社 イグナイタ用トランスおよび水銀を使用しない放電灯用点灯装置

Also Published As

Publication number Publication date
JP4230112B2 (ja) 2009-02-25

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