JP2002109918A - Discharge lamp lighting device and lighting equipment - Google Patents

Discharge lamp lighting device and lighting equipment

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Publication number
JP2002109918A
JP2002109918A JP2000301060A JP2000301060A JP2002109918A JP 2002109918 A JP2002109918 A JP 2002109918A JP 2000301060 A JP2000301060 A JP 2000301060A JP 2000301060 A JP2000301060 A JP 2000301060A JP 2002109918 A JP2002109918 A JP 2002109918A
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Japan
Prior art keywords
lighting device
discharge lamp
side
lamp lighting
housing
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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.)
Pending
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JP2000301060A
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Japanese (ja)
Inventor
Takashi Kanbara
Tsutomu Shiomi
務 塩見
隆 神原
Original Assignee
Matsushita Electric Works Ltd
松下電工株式会社
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Application filed by Matsushita Electric Works Ltd, 松下電工株式会社 filed Critical Matsushita Electric Works Ltd
Priority to JP2000301060A priority Critical patent/JP2002109918A/en
Publication of JP2002109918A publication Critical patent/JP2002109918A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device which is easily miniaturized, exerting little thermal stress on electronic components by reducing a thermal effect from a discharge lamp to the lighting device, and to provide a lighting equipment.
SOLUTION: For the discharge lamp lighting device comprising a discharge lamp 2 as a light source, a reflection mirror 3 with an opening 3a at one end, controlling a light distribution by surrounding the circumference of the discharge lamp 2, a lighting device 6 connected electrically to a socket 4 for mounting the light source and controlling the lighting of the discharge lamp 2, and a case 5 with frontal opening, supporting the reflection mirror 3, a small opening 52 is formed at a back surface plate 51 of the case 5, and the lighting device 6 is formed so that the shape of a circuit board 61 of the lighting device become nearly same as the shape of the small opening 52, and the circuit board 61 is located to the almost same position with the small opening 52 so as to make the parts mounted on the circuit board protrude from the back side of the case 5.
COPYRIGHT: (C)2002,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、店舗用照明、自動車前照灯等に用いられるHIDランプ等の放電灯を光源とする放電灯点灯装置及び照明装置に関するものである。 The present invention relates to relates to a discharge lamp lighting device and an illumination apparatus for illuminating shop, a discharge lamp such as a HID lamp for use in vehicle headlight such as a light source.

【0002】 [0002]

【従来の技術】近年、店舗用照明装置、あるいは自動車前照灯などの車載用照明装置において、省エネ、長寿命等の観点より、白熱灯からHIDランプ等の高圧放電灯への代替が進んでいる。 Recently, in-vehicle illumination device such as a shop lighting device, or an automobile headlight, energy conservation, from the viewpoint of long service life, is willing alternative incandescent lamp to the high pressure discharge lamp such as an HID lamp there. この高圧放電灯は、点灯装置としてバラストとよばれる安定器が必要である。 The high pressure discharge lamp, it is necessary ballast called ballast as lighting device. このバラストとしては、従来、銅鉄式と電子式とがある。 As the ballast, conventionally, there is a copper iron type and electronic. そして、上記照明装置には、小型、あるいは軽量であること等から電子式バラストが多く用いられている。 Then, the illumination device has the electronic ballast often used since such that small or lightweight.

【0003】電子式バラストは、小型及び軽量である特徴を活かして、照明装置に一体に設けられることが多い。 [0003] Electronic ballasts, taking advantage of the features that are small and lightweight, it is often provided integrally with the lighting device. ところで、電子式バラストの点灯回路を構成する電子部品は、使用条件において熱的制約がある。 Incidentally, the electronic components of the lighting circuit of an electronic ballast, there is a thermal constraints in the use condition. 例えばF For example, F
ET等の半導体は、一般的に半導体接合部温度の上限が150℃程度に規定され、また、電解コンデンサは、一般に、使用環境の温度条件により、10℃2倍則と呼ばれる比率に沿って部品寿命が半減することが知られている。 Semiconductors such as ET, generally the upper limit of the semiconductor junction temperature is defined to be about 0.99 ° C., also electrolytic capacitors, generally, the temperature of the use environment, along with the ratio called 10 ° C. 2-fold rule component life is known to half. すなわち、使用環境温度が10℃上昇すると、電解コンデンサの電解質の劣化により、その容量が略2倍の速度にて低下する。 That is, when the environment temperature rises 10 ° C., the deterioration of the electrolyte of the electrolytic capacitor, the capacity is reduced by approximately twice the speed.

【0004】図8に示す、従来例の放電灯点灯装置10 [0004] FIG. 8, a conventional example of a discharge lamp lighting apparatus 10
0においては、照明装置が、光源となる放電灯101 In 0, the lighting device, the discharge lamp 101 as a light source
と、同放電灯101の周囲を囲って配光制御をおこなう一面に開口部をもった反射鏡102と、光源装着用のソケット103と電気的に接続されて放電灯の点灯制御をおこなう点灯装置105に相当する、電源の接続される電子式バラストと、前記反射鏡102を支持する前面開口の筐体104とを備える。 When, a reflecting mirror 102 having an opening on one side for performing the light distribution control by surrounding the periphery of the discharge lamp 101 is connected socket 103 and electrically the light source mounted controlling lighting of a discharge lamp lighting device equivalent to 105, provided with electronic ballasts power connections, and a housing 104 of the front opening for supporting the reflecting mirror 102. この放電灯点灯装置100 The discharge lamp lighting device 100
は、点灯装置105に電源電圧が印加されると、放電灯101が点灯されて発光状態となり、この放電灯101 , When the power supply voltage to the lighting device 105 is applied, the discharge lamp 101 is turned on to become a light-emitting state, the discharge lamp 101
から発生した光が反射鏡102により放電灯点灯装置1 Light generated from the discharge lamp lighting apparatus by the reflecting mirror 102 1
00の前面側に配光制御されて照明する。 00 is the light distribution control on the front side of the illuminated by.

【0005】点灯装置105は、この場合、図7に示す回路例に示す構成で、その点灯回路の回路ブロックとして、DC−DCコンバータ106、低周波インバータ1 [0005] lighting device 105, in this case, in the configuration shown in the circuit example shown in FIG. 7, as a circuit block in the lighting circuit, DC-DC converter 106, a low frequency inverter 1
07、イグナイタ108、及び制御回路109により形成されている。 07, is formed by an igniter 108, and a control circuit 109. DC−DCコンバータ106は、電源E DC-DC converter 106, the power supply E
1による電源電圧から負荷電圧への電圧変換行うとともに負荷電力を制御する。 It performs voltage conversion from a power supply voltage to the load voltage by 1 controls the load power. 低周波インバータ107は、放電灯101への電圧の極性を低周波で交番させることにより矩形波点灯を可能とする。 Low-frequency inverter 107, the polarity of the voltage to the discharge lamp 101 to enable a rectangular wave lighting by alternating at a low frequency. イグナイタ108は、電源投入時に放電灯101の電極間を絶縁破壊させて放電灯101を点灯に至らしめる。 Igniter 108 occupies reach the discharge lamp 101 to light up between the electrodes of the discharge lamp 101 is breakdown at power-on.

【0006】上記の回路ブロックは、電解コンデンサC [0006] The above-mentioned circuit block, electrolytic capacitor C
1、フィルムコンデンサC2、トランスT1等の受動部品と、スイッチ素子であるFETQ1〜Q5等の能動部品と、能動部品を制御し駆動する、IC等にて形成される制御回路109とにより形成される。 1, is formed by a film capacitor C2, and passive components such as transformers T1, the active components FETQ1~Q5 such a switching device, which controls the active component driving, a control circuit 109 formed by IC and the like . そして、図8 Then, as shown in FIG. 8
(a)に示す如く、放電灯101が発する熱を受けにくいように筐体104下部に取り付けられている。 As (a), the attached to the lower housing 104 so as not susceptible to heat the discharge lamp 101 is emitted. すなわち、点灯装置105から放電灯101に供給されるエネルギーのうち、光にならないエネルギーは放電灯において熱となって放電灯101の周囲がかなりの高温になるが、点灯回路を構成する電子部品をこの高温条件から遠ざけるためである。 That is, of the energy supplied from the lighting device 105 to the discharge lamp 101, the energy does not become the light is around the discharge lamp 101 as heat in the discharge lamp becomes considerably high temperature, the electronic components constituting the lighting circuit it is to distance from the high-temperature condition.

【0007】 [0007]

【発明が解決しようとする課題】しかしながら、上記従来の技術の、図8(a)に示した、放電灯101からの熱を受けにくくする構成においては、点灯装置105が筐体104外部に設けられており、取り扱い性が悪くなるとともに照明装置自体の外形が比較的大きくなる等の欠点があった。 [SUMMARY OF THE INVENTION However, the above prior art, shown in FIG. 8 (a), in the structure less susceptible to heat from the discharge lamp 101, the lighting device 105 is provided on the housing 104 outside It is and has a drawback such as the outer shape of the lighting device itself is relatively large with handleability becomes poor.

【0008】また、同図(b)に示す放電灯点灯装置1 [0008] The discharge lamp lighting device 1 shown in FIG. (B)
10ように、点灯装置105を筐体104の内部に設置しようとした場合、照明装置の取り扱い性は改善される反面、点灯装置105に対して放電灯101が発する熱の影響を軽減させるためには、点灯装置105を放電灯101から離して配置する必要がある。 10 As the lighting device 105 when an attempt installed inside the housing 104, while the handling of the illumination device to be improved, in order to reduce the influence of heat lamp 101 is dispatched to the lighting device 105 has to be placed away the lighting device 105 from the discharge lamp 101. したがって、筐体104自体がより大型化する等の欠点があった。 Therefore, there is a problem such as the housing 104 itself becomes more large. すなわち、この構成によると、照明装置全体が大型化するという問題があった。 That is, according to this configuration, the entire lighting device is disadvantageously large.

【0009】ところで、照明装置の防水性を向上させるため、筐体104を外部と閉ざされた密閉構造とすることが要望されることがある。 By the way, in order to improve the water resistance of the illuminating device, it may be a closed structure with closed the housing 104 with the outside is desired. この場合、筐体104内部の放熱が図りにくく、また、筐体104を小型にするほど熱の影響がより顕著となるため、防水性を維持させた状態での小型化はより困難であるという問題があった。 That this case, the housing 104 difficult internal heat dissipation aims, also, since the thermal effect of the housing 104 as to the size becomes more pronounced, reduction in size in a state of being maintained waterproof is more difficult there was a problem.

【0010】本発明は、上記事由に鑑みてなしたもので、その目的とするところは、放電灯から点灯装置への熱の影響を軽減化して電子部品への熱的ストレスの少ない、以て、小型化の容易な放電灯点灯装置及び照明装置を提供することにある。 [0010] The present invention was made in view of the above circumstances, it is an object of less thermal stress on the electronic components to reduce the influence of heat upon the lighting apparatus from the discharge lamp, Te following is to provide an easy discharge lamp lighting device and an illumination apparatus compact.

【0011】 [0011]

【課題を解決するための手段】上記目的を達成するために、本発明の放電灯点灯装置にあっては、光源となる放電灯と、同放電灯の周囲を囲って配光制御をおこなう一面に開口部をもった反射鏡と、光源装着用のソケットと電気的に接続されて放電灯の点灯制御をおこなう点灯装置と、前記反射鏡を支持する前面開口の筐体とを備えた放電灯点灯装置において、前記筐体の後面板に小開口を設け、前記点灯装置を、その回路基板が該小開口と略一致する外形を有するよう形成し、その実装部品側が筐体背面に突出するように回路基板を小開口と略同一位置に配置したことを特徴としている。 To achieve the above object, according to the Invention The, in the discharge lamp lighting apparatus of the present invention, a discharge lamp as a light source, a surface that performs light distribution control surrounds the periphery of the discharge lamp discharge lamp with a reflecting mirror having an opening, and a lighting device controlling lighting of the discharge lamp is connected to a socket electrically the light source mounted to the housing of the front opening for supporting the reflecting mirror in the lighting device, the small opening provided in the rear plate of the housing, the lighting device, so that the circuit board is formed to have a small-aperture substantially matches the outer shape, the component-side protrudes to the rear housing It is characterized in that a circuit board to the small opening and substantially the same position on.

【0012】この構成にて、光源となる放電灯装着用のソケットと電気的に接続されて放電灯の点灯制御をおこなう点灯装置が、放電灯の周囲を囲って配光制御をおこなう一面に開口部をもった反射鏡を支持する、前面開口の筐体の後面板に、その回路基板を後面板に設けられた小開口と略一致するよう外形を形成され且つ、実装部品側が筐体背面に突出するようにして回路基板を小開口と略同一位置に配置される。 [0012] open at this construction, electricity and socket of the discharge lamp for mounting as a light source connected to by controlling lighting of a discharge lamp lighting device, on one side that performs light distribution control surrounds the periphery of the discharge lamp a reflecting mirror supporting with a part, the rear plate of the housing of the front opening, is formed a profile so as to substantially coincide with the small opening provided in the rear plate and the circuit board and, the component-side is the rear housing is arranged the circuit board to the small opening and substantially the same position so as to protrude.

【0013】そして、上記回路基板は、その実装部品を自己発熱の大きい部品が筐体の上部側、加熱にて劣化し易い部品が筐体の下部側となるよう配設されることが好ましい。 [0013] Then, the circuit board, the upper side of the large component is the housing of the self-heating the mounted components, can easily part deteriorated by heat is arranged to be the lower side of the housing preferred. この場合、筐体の後面板の小開口と略同一位置に配置される回路基板上に、筐体背面に突出するようにして配置される実装部品の自己発熱の大きい部品が筐体の上部側、加熱にて劣化し易い部品が筐体の下部側となるよう筐体後面板に沿って配設される。 In this case, on the circuit board is disposed in a small opening and substantially the same position of the rear plate of the housing, the upper side of the large component is the housing of the self-heating of the mounted components are arranged so as to protrude to the rear housing easily parts deteriorated by heating is disposed along the housing rear surface plate so that the lower side of the housing.

【0014】また、上記回路基板に、筐体の上部側、下部側に区分する遮熱部材を設けるのが好ましい。 Further, in the circuit board, the upper side of the housing, preferably provided with heat shield for partitioning the lower side. この場合、筐体背面に突出するよう、筐体後面板に沿って配置される、筐体の上部側の自己発熱の大きい部品、筐体の下部側の加熱にて劣化し易い部品相互が、遮熱部材にて熱的に区分される。 In this case, so as to protrude to the rear housing, is arranged along the housing after the face plate, the upper side of the large part of the self-heating of the housing, tends parts mutually degraded at the lower portion of the side heating of the housing, thermally partitioned by the heat insulating member.

【0015】また、上記遮熱部材を、前記回路基板上に設けられる部品実装された別回路基板とするのが好ましい。 Further, the heat insulating member, preferably with another circuit board which is component mounting is provided on the circuit board. この場合、筐体の上部側の自己発熱の大きい部品、 In this case, the upper side of the large part of the self-heating of the housing,
筐体の下部側の加熱にて劣化し易い部品相互が、遮熱を兼ねた回路基板上に設けられる部品実装された別回路基板にて熱的に区分される。 Prone parts mutually degraded at the lower portion of the side heating of the housing is thermally partitioned in a separate circuit board that is a component mounting is provided on a circuit board which also serves as a thermal barrier.

【0016】また、上記点灯装置は、その実装部品側がカバー部材にて覆われてなるのが好ましい。 Further, the lighting device is preferably that the component-side is covered with a cover member. この場合、 in this case,
放電灯から点灯装置への熱の影響を軽減化することができて電子部品への熱的ストレスを少なくできるとともに放電灯点灯装置を防水化できる。 And it is possible to reduce the influence of heat upon the lighting apparatus from the discharge lamp can waterproof the discharge lamp lighting device with can be reduced thermal stress on the electronic components.

【0017】また、上記小開口に、前記反射鏡側及び点灯装置側を区分する蓋部材を設けるのが好ましい。 Further, in the small opening, to dispose a cover member for dividing the reflecting mirror side and the lighting device side preferred. この場合、反射鏡側及び点灯装置側が蓋部材にて区分される。 In this case, the reflecting mirror side and the lighting device side is partitioned by the cover member.

【0018】また、上記ソケット後面に伝熱性の高い板金材料製の支持片を接合し、同支持片を前記後面板に保持させるのが好ましい。 Further, in the socket rear joining support piece made of high sheet metal heat conductivity, it is preferable to hold the same support piece to the rear face plate. この場合、放電灯から発せられる熱が、反射鏡の一面側に設けられる放電灯装着用のソケット後面から伝熱性の高い板金材料製の支持片、後面板を介して筐体へ放熱される。 In this case, heat generated by the discharge lamp is radiated high sheet metal made of the support piece heat conductivity from the socket rear of the discharge lamp for mounting provided on one side of the reflector, through the rear plate to the housing.

【0019】また、上記カバー部材の上部に放熱フィンを設けるのが好ましい。 Further, preferably provided with heat radiating fins on the top of the cover member. この場合、点灯装置自体の自己発熱の大きい実装部品の熱が、カバー部材上部に放熱フィンを介してカバー部材外に放出される。 In this case, the heat of the large mounting parts of the self-heating of the lighting device itself, are discharged outside the cover member through the radiator fins to the cover member top.

【0020】また、上記支持片を、前記後面板又はカバー部材の上部側位置にて保持させるのが好ましい。 Further, the support piece, is preferable to retain at the upper side position of the rear face plate or cover member. この場合、放電灯から発せられる熱が、反射鏡の一面側に設けられる放電灯装着用のソケット後面から伝熱性の高い板金材料製の支持片を介して筐体又はカバー部材の上部に放熱される。 In this case, heat generated by the discharge lamp is radiated from the socket rear of the discharge lamp for mounting provided on one surface side of the reflecting mirror at the top of the casing or cover member via a support piece made of high sheet metal heat conductivity that.

【0021】また、上記前記蓋部材の上下に、前記点灯装置側と反射鏡側との通気開口を設けるのが好ましい。 Further, above and below the said lid member, to dispose the vent opening of the reflection mirror side to the lighting apparatus preferable.
この場合、反射鏡側及び点灯装置側を区分する蓋部材上下の通気開口を介して点灯装置側と反射鏡側とが通気される。 In this case, the lighting device side and the reflecting mirror side is vented through the cover member above and below the vent opening partitioning the reflector side and the lighting device side.

【0022】また、上記カバー部材は、少なくともその上部及び下部に通気孔を有するのも好ましい。 Further, the cover member may also preferably have at least its upper and lower ventilation holes. この場合、放電灯から点灯装置への熱の影響を軽減化するとともに点灯装置自体の自己発熱の大きい実装部品の熱がカバー部材の上部及び下部に通気孔を介して放熱される。 In this case, a large mounting parts of the thermal self-heating of the lighting device itself as well as reduce the influence of heat upon the lighting apparatus from the discharge lamp is radiated through the upper and lower ventilation holes of the cover member.

【0023】また、上記カバー部材内に伝熱性の高い樹脂材料が充填するのが好ましい。 Further, preferably resin material having high heat conductivity is filled in the cover member. この場合、点灯装置自体の自己発熱の大きい実装部品の熱が、カバー部材内に充填された伝熱性の高い樹脂材料を介してカバー部材外に放出される。 In this case, the heat of the large mounting parts of the self-heating of the lighting device itself, are discharged outside the cover member through a resin material having high heat conductivity which is filled in the cover member.

【0024】また、上記ソケットに、前記放電灯始動用のパルス発生部を設けるのが好ましい。 Further, in the socket, preferably provided with pulse generating portion of the discharge lamp starting. この場合、放電灯始動用のパルス発生部からの熱が点灯装置を介することなく外部へ放熱される。 In this case, heat from the pulse generating unit of the discharge lamp starting is dissipated to the outside without passing through the lighting device.

【0025】また、本発明の照明装置にあっては、上記に記載の放電灯点灯装置を自動車用前照灯としている。 Further, in the illumination device of the present invention, it is a motor vehicle headlamp the discharge lamp lighting apparatus described above.

【0026】 [0026]

【発明の実施の形態】図1、図2は、本発明の、請求項1乃至6、14の全てに対応する第1の実施の形態を示し、図3は、請求項7乃至9、13に対応する第2の実施の形態を示し、図4は、請求項10に対応する第3の実施の形態を示し、図5は、請求項11に対応する第4 DETAILED DESCRIPTION OF THE INVENTION Figure 1, Figure 2, of the present invention, showing a first embodiment corresponding to all of claims 1 to 6, 14, 3, claims 7 to 9 and 13 shows a second embodiment corresponding to FIG. 4 shows a third embodiment corresponding to claims 10, 5, 4 corresponding to claim 11
の実施の形態を示し、図6は、請求項12に対応する第5の実施の形態を示している。 Shows the embodiment, FIG. 6 shows a fifth embodiment corresponding to claim 12.

【0027】[第1の実施の形態]図1は、本発明の第1の実施の形態の放電灯点灯装置の概略構成を示し、 [0027] [First Embodiment] FIG. 1 shows a schematic configuration of a discharge lamp lighting apparatus of the first embodiment of the present invention,
(a)は側面断面図、(b)は点灯装置の平面図である。 (A) is a side sectional view, a plan view of (b) is a lighting device. 図2は、同放電灯点灯装置の他の実施例の説明図である。 Figure 2 is an illustration of another embodiment of the discharge lamp lighting device.

【0028】この実施の形態の放電灯点灯装置1は、光源となる放電灯2と、同放電灯2の周囲を囲って配光制御をおこなう一面に開口部3aをもった反射鏡3と、光源装着用のソケット4と電気的に接続されて放電灯2の点灯制御をおこなう点灯装置6と、前記反射鏡3を支持する前面開口の筐体5とを備えた放電灯点灯装置1において、前記筐体5の後面板51に小開口52を設け、前記点灯装置6を、その回路基板61が該小開口52と略一致する外形を有するよう形成し、その実装部品側が筐体5背面に突出するように回路基板61を小開口52と略同一位置に配置している。 The discharge lamp lighting device 1 of this embodiment comprises a discharge lamp 2 as a light source, a reflecting mirror 3 having an opening 3a at one surface to perform light distribution control surrounds the periphery of the discharge lamp 2, a lighting device 6 is a socket 4 and electrically connected to the light source mounted controlling lighting of the discharge lamp 2, the discharge lamp lighting device 1 includes a housing 5 of the front opening for supporting the reflecting mirror 3, the small openings 52 in the rear face plate 51 of the casing 5 is provided, the lighting device 6, the circuit board 61 is formed to have an outer shape which substantially coincides with said small opening 52, on the component-side is housing 5 back are arranged the circuit board 61 to the small opening 52 and substantially the same position so as to project.

【0029】又、該実施の形態の放電灯点灯装置1においては、前記回路基板61は、その実装部品を自己発熱の大きい部品が筐体5の上部側、加熱にて劣化し易い部品が筐体5の下部側となるよう配設してもいる。 [0029] Further, in the discharge lamp lighting device 1 in the form of the embodiment, the circuit board 61, the mounting part is large parts of self-heating upper side of the housing 5, prone parts to deteriorate in heating cabinet are also arranged so that the lower side of the body 5. 又、該実施の形態の放電灯点灯装置1においては、前記回路基板61に、筐体5の上部側、下部側に区分する遮熱部材62を設けてもいる。 Further, in the discharge lamp lighting device 1 in the form of the embodiment, the circuit board 61, are also top side of the casing 5, the heat insulating member 62 for partitioning the lower side thereof. 又、該実施の形態の放電灯点灯装置1においては、前記点灯装置6は、その実装部品側がカバー部材7にて覆われてもいる。 Further, in the discharge lamp lighting device 1 in the form of the embodiment, the lighting device 6, the component-side're also covered with the cover member 7 thereof. 又、該実施の形態の放電灯点灯装置1においては、前記小開口52に、前記反射鏡側及び点灯装置側を区分する蓋部材8を設けてもいる。 Further, in the discharge lamp lighting device 1 in the form of the embodiment, the a small opening 52, it is also provided a lid member 8 to partition the reflector side and the lighting device side. 又、該実施の形態の放電灯点灯装置1は、自動車用前照灯とした照明装置である。 Further, the discharge lamp lighting device 1 in the form of the embodiment is an illumination apparatus with automobile headlamp.

【0030】詳しくは、この放電灯点灯装置1は、自動車用前照灯の本体部となるもので、略円状の開口部3a [0030] Specifically, the discharge lamp lighting device 1 serves as a main body portion of the previous automotive head lamp, a substantially circular opening 3a
を前面に有して、放電灯2がその内側に装着される断面略紡錘状の反射鏡3と、この反射鏡3保護用の外郭ケースであって、前面側となる一端面の開口した円筒状の筐体5と、この筐体5の後面板51に装着され、放電灯2 The have the front, and a substantially spindle-shaped reflector 3 the discharge lamp 2 is mounted on the inside, a the reflection mirror 3 the outer casing for protecting cylinder is open at one end face serving as a front side and Jo housing 5, is mounted on the face plate 51 after the housing 5, the discharge lamp 2
を点灯させる点灯装置6とを備えている。 And a lighting device 6 for lighting the. なお、反射鏡3は、筐体5内側に設けられている固定部に、その被固定部がねじ等の固定具を介して固定されるようになっており(詳細は図示せず)、その背面にソケット4が実質的に一体に設けられている。 The reflecting mirror 3, a fixed portion provided in the housing 5 inside, (not more shown) that the fixed portion is adapted to be secured via a fastener such as a screw, its socket 4 is provided substantially integrally to the rear. このソケット4は、後述する点灯装置6と接続される内部電線41が設けられており、反射鏡3に設けられた結合機構を介してその周囲が分離自在に機械的に結合されるようになっている。 The socket 4 is adapted is provided with an internal wire 41 that is connected to the lighting device 6 to be described later, its surroundings via the coupling mechanism provided in the reflector 3 is freely mechanically decoupling ing.

【0031】筐体5は、例えば鋼板を絞り加工して円筒状に形成され、自動車への取付部が外面側、上記固定部が内面側に設けられている。 The housing 5 is formed in a cylindrical shape for example, a steel sheet drawing to, attachment to vehicle outer face side, the fixing portion is provided on the inner surface side. そして、円筒の一端面となる開口には、図示していない嵌合構造を介して、透明樹脂材料製の前面カバー11が嵌合固着されるようになっている。 Then, the opening serving as one end face of the cylinder, through a fitting structure which is not shown, a transparent resin material made front cover 11 is adapted to be fixedly fitted. この筐体5の後面板51には、略四角状の小開口52が設けられており、後述する点灯装置6がその周囲に設けられている固定孔を介してねじ固定される。 This face plate 51 after the housing 5 has a substantially rectangular shape of the small openings 52 provided, are screwed through the fixing hole lighting device 6 to be described later is provided on its periphery.

【0032】点灯装置6は、上記ソケット4と電気的に接続されて放電灯2の点灯制御をおこなうもので、この場合、後述するカバー部材7内部に、点灯回路を形成する、従来の技術の項にて説明した回路ブロックによる各電子部品が、ガラスエポキシ基板等の実装用の回路基板61上に配置されて、上記筐体5の後面板51に沿うように背面側に突設されている。 The lighting device 6, which performs the socket 4 is electrically connected to and lighting control of the discharge lamp 2, in this case, inside the cover member 7 to be described later, to form a lighting circuit, the prior art each electronic component according to the circuit blocks described in the section is disposed on the circuit board 61 for mounting a glass epoxy substrate or the like, is projected to the rear side along the face plate 51 after the housing 5 . なお、この回路基板61 In addition, the circuit board 61
には当該回路ブロックに直流電源供給をおこなう電源線63が接続される。 Power line 63 performing the DC power supply to the circuit block is connected to.

【0033】この点灯装置6は、カバー部材7内にてその実装部品の自己発熱の大きい部品(FET、トランス等)が筐体5の上部側、加熱にて劣化し易い部品(電解コンデンサ、フィルムコンデンサ等)が筐体5の下部側となるよう回路基板61上に配置されて形成されている。 [0033] The lighting device 6 is greater part of self-heating of the mounting component in the cover member 7 (FET, transformers) upper side of the housing 5, prone components (electrolytic capacitors deteriorate with heat, the film capacitors, etc.) are formed is disposed on the circuit board 61 so that the lower side of the housing 5. この様な配置をとることにより、自己発熱の多い部品から発生した熱の影響を、加熱にて劣化し易い部品に与えにくく出来ると共に、自己発熱の多い部品から発生した熱を有効に点灯装置6上方へ放熱することができて、実装部品を無作為に配置するのと比べて点灯装置6 By taking such a configuration, the influence of heat generated from a lot of self-heating parts, with it hardly gives the easy part deteriorated by heat, effectively lighting device the heat generated from the high self-heat generating component 6 and it can be radiated upwardly, lighting compared as to place the mounting components randomly device 6
自体での発熱による電子部品への熱的ストレスも少なくできる。 Thermal stress on the electronic components by heating in itself may be reduced.

【0034】また、この回路基板61上には、図1 Further, on the circuit board 61, FIG. 1
(b)に詳しく示すように、回路基板61上の実装部品を、筐体5の上部側の上記自己発熱の大きい部品と、下部側の加熱にて劣化し易い部品とに区分する板状の遮熱部材62を設けてあり、これらの部品相互が、この遮熱部材62にて熱的に区分されるようになっている。 As shown in detail (b), the mounting components on the circuit board 61, and the upper side of the large part of the self-heating of the housing 5, a plate-like partitioning in the prone parts to deteriorate at the lower side heating is provided with a heat insulating member 62, these components each other, and is thermally divided by the heat shield 62. したがって、点灯装置6自体の自己発熱の大きい電子部品による発熱から、加熱にて劣化し易い部品への熱的ストレスをより軽減化することができる。 Therefore, it is possible from the heat generated by the large electronic components of the self-heating of the lighting device 6 itself, to further reduce the thermal stress on the likely components to deteriorate with heat.

【0035】カバー部材7は、合成樹脂あるいはアルミダイキャスト製の一面開口の四角状箱体で、筐体5の後面板51に取付るための取付片71(図1(a)参照) The cover member 7, synthetic resin or aluminum die-cast one surface quadrangular box body openings, the mounting piece 71 for installation to an rear face plate 51 of the housing 5 (see FIG. 1 (a))
がその周囲に横向きに突設されている。 There has been projecting sideways around that. このカバー部材7は、筐体5の後面板51に設けられた小開口52よりわずかに大きい外形をもった略四角で、取付片71を介して後面板51にねじ取付される。 The cover member 7 is a generally square having a slightly larger outer than the small openings 52 provided in the face plate 51 after the housing 5, it is threaded mounted on the rear plate 51 via a mounting piece 71.

【0036】蓋部材8は、熱的に点灯装置6側及び反射鏡3側を区分するためのもので、断熱性及び耐熱性をもった、例えばエポキシ樹脂などの合成樹脂板にて形成されている。 The cover member 8 serves to separate the thermally lighting device 6 side and a reflecting mirror 3 side, with a heat insulating property and heat resistance, for example, it is formed of synthetic resin plate such as an epoxy resin there. この蓋部材8は、ソケット4から導出される上記内部電線41を貫通する貫通孔を有しており、上記カバー部材7の内側に嵌合固着されるようになっている。 The lid member 8 has a through hole penetrating the inner wires 41 derived from the socket 4, and is fixedly fitted to the inside of the cover member 7.

【0037】上記の放電灯点灯装置1においては、まず、放電灯2の周囲を囲って配光制御をおこなう一面に開口部3aをもった反射鏡3が、前面開口の筐体5の内側に固定支持され、次いで、放電灯2の点灯制御をおこなう点灯装置6が、放電灯装着用のソケット4と電気的に接続されて筐体5の後面板51にカバー部材7が取り付けられ、組み立てがなされる。 [0037] In the discharge lamp lighting apparatus 1 described above, first, the reflecting mirror 3 having an opening 3a at one surface to perform light distribution control surrounds the periphery of the discharge lamp 2 is on the inside of the housing 5 of the front opening is fixed and supported, then the lighting device 6 controlling lighting of the discharge lamp 2, the cover member 7 after the face plate 51 of the socket 4 and electrically connected to to the casing 5 for discharge lamp mounting is attached, assembled It is made. そして、このものにおいては、カバー部材7内の回路基板61上には、その実装部品の自己発熱の大きい部品が筐体5の上部側、加熱にて劣化し易い部品が筐体5の下部側となるよう配置されて形成され後面板51に沿うように筐体5の背面側に突設されることとなる。 Then, in this compound, on the circuit board 61 in the cover member 7 includes an upper side, a lower side of the easy parts deteriorated by heating housing 5 of a large part housing 5 of the self-heating of the mounting component the be projected on the rear side of the housing 5 along the face plate 51 after being formed is arranged so as to be. そのため、放電灯2から点灯装置6への熱の影響が最も軽減され、また、点灯装置6において自己発熱の多い部品から発生した熱を有効に点灯装置6上方へ放熱されて、電子部品への熱的ストレスの少ないものとなってより小型軽量化が達成されるのである。 Therefore, the influence of heat from the discharge lamp 2 to lighting device 6 is most reduced, also, is effectively radiated to the lighting device 6 upward the heat generated from the high self heating component in the lighting device 6, to the electronic component it is more of a small size and lightweight are achieved become a less thermal stress.

【0038】また、このとき、点灯装置6のカバー部材7内の実装部品と反射鏡3側とが、後面板51に設けられた小開口52を挟んで断熱性を有する蓋部材8にて熱的に区分されて、放電灯2から点灯装置6への熱の影響がより軽減化される。 Further, the heat in the lid member 8 at this time, having a heat insulating property across the mounting part in the cover member 7 of the lighting device 6 and the reflecting mirror 3 side, the small openings 52 provided on the rear surface plate 51 to be classified, the influence of heat from the discharge lamp 2 to lighting device 6 is further reduced reduction.

【0039】したがって、以上説明した放電灯点灯装置1及び照明装置によると、光源となる放電灯装着用のソケット4と電気的に接続されて放電灯2の点灯制御をおこなう点灯装置6が、放電灯2の周囲を囲って配光制御をおこなう一面に開口部3aをもった反射鏡3を支持する、前面開口の筐体5の後面板51に、その回路基板6 [0039] Thus, according to the discharge lamp lighting device 1 and a lighting device described above, the lighting device 6 connected socket 4 and electrically the discharge lamp mounting comprising a light source controlling lighting of the discharge lamp 2 is, release the reflector 3 supports having an opening 3a surrounds the periphery of the lamp 2 on one side for performing the light distribution control, the face plate 51 after the housing 5 of the front opening, the circuit board 6
1を後面板51に設けられた小開口52と略一致するよう外形を形成され且つ、実装部品側が筐体5背面に突出するようにして回路基板61を小開口52と略同一位置に配置されるので、放電灯2から点灯装置6への熱の影響を軽減化することができて電子部品への熱的ストレスを少なくでき、以て、放電灯点灯装置1を容易に小型化できる。 And formed a profile so as to substantially coincide with the small apertures 52 provided in the rear plate 51 to 1, is arranged a circuit board 61 as the component-side projects into the housing 5 back to the small opening 52 and substantially the same position Runode, and it is possible to reduce the influence of the heat from the discharge lamp 2 to lighting device 6 can reduce the thermal stress on the electronic components, other than Te, the discharge lamp lighting device 1 can be easily miniaturized.

【0040】そして、筐体5の後面板51の小開口52 [0040] Then, the small opening 52 of the rear face plate 51 of the housing 5
と略同一位置に配置される回路基板61上に、筐体5背面に突出するようにして配置される実装部品の自己発熱の大きい部品が筐体5の上部側、加熱にて劣化し易い部品が筐体5の下部側となるよう筐体5後面板51に沿って配設されるので、放電灯2から点灯装置6への熱の影響及び、点灯装置6自体での発熱による電子部品への熱的ストレスを軽減化することができて放電灯点灯装置1 And on the circuit board 61 which is disposed at substantially the same position, the upper side of the self-heating of the larger component housing 5 mounting component arranged so as to protrude into the housing 5 back, easily deteriorated by heating elements since There are disposed along the housing 5 after the face plate 51 so that the lower side of the housing 5, the heat from the discharge lamp 2 to lighting device 6 influences and, the electronic component according to heat generation in the lighting device 6 itself and it can reduce the thermal stress discharge lamp lighting device 1
をより小型化できる。 It can be more compact. また、この場合、筐体5背面に突出するよう、筐体5の後面板51に沿って配置される、 In this case, so as to protrude into the housing 5 back, are arranged along the face plate 51 after the housing 5,
筐体5の上部側の自己発熱の大きい部品、筐体5の下部側の加熱にて劣化し易い部品相互が、遮熱部材62にて熱的に区分されるので、点灯装置6自体の自己発熱の大きい電子部品による発熱から、加熱にて劣化し易い部品への熱的ストレスを軽減化することもできて、より小型化できる。 Upper side of a large part of the self-heating of the housing 5, prone parts mutually degraded at the lower portion of the side heating of the housing 5, since the thermally partitioned by the heat insulating member 62, the lighting device 6 itself self from heat generated by large electronic components of the heating, it is also possible to reduce the thermal stress on the likely components to deteriorate with heat, it can be more compact.

【0041】また、点灯装置6の実装部品側がカバー部材7にて覆われるので、放電灯2から点灯装置6への熱の影響を軽減化できるとともに放電灯点灯装置を防水化でき、しかも、反射鏡3側及び点灯装置6側が蓋部材8 Further, since the component-side of the lighting device 6 is covered with the cover member 7, can waterproof the discharge lamp lighting apparatus is possible reduce the influence of heat upon the lighting device 6 from the discharge lamp 2, moreover, the reflection mirror 3 side and the lighting device 6 side lid member 8
にて区分されるので、放電灯2から点灯装置6への熱の影響をより軽減化することができて電子部品への熱的ストレスを少なくでき、以て、放電灯点灯装置をさらに小型化できる。 Since the segmented by, to be able to further reduce the influence of the heat from the discharge lamp 2 to lighting device 6 can reduce the thermal stress on the electronic components, Te following further miniaturization of the discharge lamp lighting device it can.

【0042】なお、本発明は、上記に示されたもの以外に、例えば、図2(a)に示すように、前記遮熱部材を、前記回路基板61上に設けられる部品実装された別回路基板64とすることも好ましい。 [0042] The present invention is, in addition to those indicated above, for example, as shown in FIG. 2 (a), the heat insulating member to another circuit that is component mounting is provided on the circuit board 61 it is also preferable that the substrate 64. この別回路基板6 This separate circuit board 6
4上には、同図に示す如く、高い実装高さ寸法の電解コンデンサを実装としたものを示している。 On 4, as shown in the figure, it shows that the implement electrolytic capacitor high mounting height. これにより、 As a result,
効率的に実装できるとともに点灯装置6をより薄型にすることが可能となって、照明器具全体の小型化がより容易ととなる。 It is possible to a lighting device 6 to thinner with efficiently implemented, the overall size of the lighting equipment is easier. さらに、本発明は、図2(b)に示すように、回路基板61を、筐体5の後面板51に設けられた小開口52と略一致する外形を有するよう形成して、実装部品側が筐体5背面に突出するようにその回路基板6 Furthermore, the present invention is, as shown in FIG. 2 (b), the circuit board 61, is formed to have a small opening 52 substantially matching the outer shape provided on a surface plate 51 after the housing 5, the component-side as the circuit board so as to protrude into the housing 5 back 6
1を小開口52側に配設したしたもの、あるいは、図2 1 what it was was placed in a small opening 52 side, or 2
(c)に示すように、上記の蓋部材8を設けないもの等、各種実施形態のものを含むことは、勿論言うまでもない。 (C), the like which do not provided with the lid member 8, to include the various embodiments, of course needless to say.

【0043】[第2の実施の形態]図3は、第2の実施の形態の放電灯点灯装置の概略構成を示す側面図である。 [0043] [Second Embodiment] FIG. 3 is a side view showing a schematic configuration of a discharge lamp lighting apparatus of the second embodiment.

【0044】この実施の形態の放電灯点灯装置は、ソケット及びカバー部材一部の構成のみが第1の実施の形態と異なるもので、他の構成部材は第1の実施の形態のものと同一で、該実施の形態の放電灯点灯装置1は、前記ソケット4後面に伝熱性の高い板金材料製の支持片9を接合し、同支持片9を前記後面板51に保持させている。 The discharge lamp lighting device of this embodiment, only the configuration of the socket and the cover member partially those different from the first embodiment, other components are identical to those of the first embodiment in the discharge lamp lighting device 1 in the form of the embodiment, the support piece 9 made of a high heat conductivity sheet metal joined to the socket 4 rear, thereby maintaining said support piece 9 to the rear face plate 51. また、該実施の形態の放電灯点灯装置1は、前記カバー部材7の上部に放熱フィン72を設けてもいる。 The discharge lamp lighting device 1 in the form of the implementation, some provided with a heat radiation fin 72 on top of the cover member 7. また、該実施の形態の放電灯点灯装置1は、前記支持片9 The discharge lamp lighting device 1 in the form of the embodiment, the support piece 9
を、前記後面板51またはカバー部材7の上部側位置にて保持させてもいる。 And there be held at the upper side position of the rear face plate 51 or the cover member 7. また、該実施の形態の放電灯点灯装置1は、前記ソケット4に、前記放電灯始動用のパルス発生部を設けてもいる。 The discharge lamp lighting device 1 in the form of the embodiment, the socket 4, there be provided a pulse generating portion of the discharge lamp starting.

【0045】このものの支持片9は、反射鏡3とともにソケット4を支持するもので、例えばアルミニウムや銅などの伝熱性の高い板金材料にて、図3に示すように略段状に折曲形成されており、ソケット4後面にねじ固定にて接合され、また、上部が筐体5の後面板51上部側位置にてねじ固定にて保持されている。 The support piece 9 of this product, together with the reflecting mirror 3 intended to support the socket 4, for example of aluminum or high sheet metal material having heat conductivity such as copper, folded form in Ryakudan shape as shown in FIG. 3 It is, joined by a screw fixed to the socket 4 rear, also the top are held by screws fixed by the face plate 51 the upper side position after the housing 5. なお、この支持片9と点灯装置6との間には、この場合、放電灯2の発熱によってこの支持片9が加熱され、点灯装置6側へ向けての熱を放射する際の加熱を和らげるための遮熱板1 In addition, between the support piece 9 and the lighting device 6, in this case, the support piece 9 by heat generation of the discharge lamp 2 is heated, soften heating during which radiates heat toward the lighting device 6 side hot plate 1 shielding for
0が設けられている。 0 is provided.

【0046】また、このもののソケット4には、従来の技術の項にて述べた、イグナイタと呼ばれる放電灯始動用のパルス発生部が設けられている。 [0046] Further, in the socket 4 of this product, said in the section of the prior art, the pulse generator for discharge lamp starting is provided called igniter. このイグナイタは、放電灯2を点灯させるために数kV乃至数10kV The igniter is several kV to several 10kV for lighting the discharge lamp 2
のパルス電圧を発生させるもので、パルストランス、スイッチング素子、コンデンサなどを含んで構成されている。 Pulse voltage intended for generating a pulse transformer, a switching element, is configured to include a capacitor, etc.. したがって、このイグナイタと放電灯2との間が例えば内部電線にて接続されていた場合、この内部電線に対しても高い電気的安全面の配慮が必要となるが、これにより内部電線を通常の耐圧仕様のものを使用することが可能となる。 Thus, if between the igniter and the discharge lamp 2 has been connected, for example by inner wire, although considerations high electrical safety against this inner wire is required, thereby the inner wire normal it is possible to use one of the breakdown voltage specification. なお、放電灯2の発熱によるイグナイタへの影響は、上記支持片9にて、反射鏡3の一面側に設けられる放電灯装着用のソケット4後面から後面板51 Incidentally, the influence of the igniter due to heating of the discharge lamp 2, the at supporting pieces 9, the rear plate of the socket 4 rear of the discharge lamp for mounting provided on one surface side of the reflecting mirror 3 51
を介して筐体5へ放熱され軽減される。 It is radiated to the housing 5 through is reduced.

【0047】さらにこのもののカバー部材7は、アルミダイキャスト製で、放熱フィン72が筐体5の上部側となる位置に一体形成されている。 [0047] Further cover member 7 of this product is made of aluminum die-casting, and is integrally formed at a position radiating fins 72 becomes the upper side of the housing 5. したがって、このカバー部材7内部の点灯装置自体の自己発熱の大きい実装部品の熱が、この放熱フィン72を介してカバー部材7外に効果的に放出される。 Therefore, heat of the large mounting parts of the self-heating of the cover member 7 inside the lighting device itself is effectively released to the outer cover member 7 through the radiation fin 72.

【0048】したがって、以上説明した放電灯点灯装置1及び照明装置によると、放電灯2から発せられる熱が、反射鏡3の一面側に設けられる放電灯装着用のソケット4後面から伝熱性の高い板金材料製の支持片9、後面板51を介して筐体5へ放熱されるので、放電灯2から点灯装置6への熱の影響をより軽減化することができ、さらに、この場合、支持片9を介して筐体5またはカバー部材7の上部に放熱されるので、放電灯2から点灯装置6への熱の影響をさらに軽減化することができる。 [0048] Thus, according to the discharge lamp lighting device 1 and a lighting device described above, heat generated from the discharge lamp 2 is high heat conductivity from the socket 4 the rear of the discharge lamp mounting provided on one surface side of the reflecting mirror 3 sheet metal made of the support piece 9, since the heat is radiated to the housing 5 through the rear plate 51, it is possible to further reduce the influence of the heat from the discharge lamp 2 to lighting device 6, further, in this case, the support since heat is radiated to the top of the housing 5 or the cover member 7 through the strip 9, it is possible to further reduce the influence of the heat from the discharge lamp 2 to lighting device 6.

【0049】また、点灯装置6自体の自己発熱の大きい実装部品の熱が、カバー部材7上部に放熱フィン72を介してカバー部材7外に放出されるので、加熱にて劣化し易い電子部品への熱的ストレスを軽減化することができて放電灯点灯装置1をより小型化できる。 [0049] The heat of the large mounting parts of the self-heating of the lighting device 6 itself, since it is released into the outer cover member 7 through the heat radiating fins 72 to the cover member 7 top, to easily electronic components deteriorated by heating thermal stress to be able to reduce of it more compact discharge lamp lighting device 1. また、放電灯始動用のパルス発生部からの熱が点灯装置6を介することなく外部へ放熱されるので、放電灯2から点灯装置への熱の影響をさらに軽減化することができる。 Further, since the heat from the pulse generator for the discharge lamp start is radiated to the outside without passing through the lighting device 6, it is possible to further reduce the influence of heat upon the lighting apparatus from the discharge lamp 2.

【0050】[第3の実施の形態]図4は、第3の実施の形態の放電灯点灯装置の概略構成を示す側面断面図である。 [0050] [Third Embodiment] FIG. 4 is a side sectional view showing a schematic configuration of a discharge lamp lighting apparatus of the third embodiment.

【0051】この実施の形態の放電灯点灯装置は、蓋部材の構成のみが第1の実施の形態と異なるもので、他の構成部材は第1の実施の形態のものと同一で、該実施の形態の放電灯点灯装置1は、前記蓋部材8の上下に、前記点灯装置6側と反射鏡3側との通気開口81,81を設けている。 The discharge lamp lighting device of this embodiment, only the configuration of the cover member in which differs from the first embodiment, other components are the same as those of the first embodiment, the embodiment the discharge lamp lighting device 1 in the form of, above and below of the cover member 8 is provided with a vent opening 81, 81 of the lighting device 6 side and the reflecting mirror 3 side.

【0052】このものの蓋部材8は、断熱性及び耐熱性をもった、例えばエポキシ樹脂などの合成樹脂成形体で、前述の貫通孔以外に、その上端、下端にそれぞれ整流片をもった通気開口81,81を上下に有して、カバー部材7の内側に嵌合固着されている。 [0052] The lid member 8 of this compound, with a heat insulating property and heat resistance, for example, a synthetic resin molded body such as epoxy resin, in addition to the aforementioned through hole, the upper end, the vent opening with each commutation piece at the lower end 81, 81 to have up and down, and is fixedly fitted to the inside of the cover member 7. そして、点灯装置6側及び反射鏡3側を直接的な輻射熱において区分し、且つ、図4において、Aの矢印にて示す通気経路に沿って、点灯装置6内部の上下における温度差を利用し、反射鏡3側の筐体5内部空間を介して、点灯装置6 Then, the lighting device 6 side and a reflecting mirror 3 side divided in direct radiant heat, and, in FIG. 4, along the vent path indicated by A arrows, by utilizing the temperature difference in the lighting device 6 inside the vertical , via the housing 5 the inner space of the reflecting mirror 3 side, the lighting device 6
内部の空気を対流させることができる。 It can be convection inside the air.

【0053】したがって、以上説明した放電灯点灯装置1及び照明装置によると、反射鏡3側及び点灯装置6側を区分する蓋部材8上下の通気開口81,81を介して点灯装置6側と反射鏡3側とが通気されるので、放電灯点灯装置1を防水化できて小型化も容易にできる。 [0053] Accordingly, the foregoing according to the discharge lamp lighting device 1 and a lighting device described, the lighting device 6 side through the lid member 8 and below the vent opening 81, 81 for dividing the reflecting mirror 3 side and the lighting device 6 side reflection since the mirror 3 side is vented, can discharge lamp lighting device 1 also easily miniaturized can waterproof of.

【0054】[第4の実施の形態]図5は、第4の実施の形態の放電灯点灯装置の概略構成を示す側面断面図である。 [0054] [Fourth Embodiment] FIG. 5 is a side sectional view showing a schematic configuration of a discharge lamp lighting device of the fourth embodiment.

【0055】この実施の形態の放電灯点灯装置は、カバー部材の構成のみが第1の実施の形態と異なるもので、 [0055] The discharge lamp lighting device of this embodiment, in which only the configuration of the cover member is different from the first embodiment,
他の構成部材は第1の実施の形態のものと同一で、該実施の形態の放電灯点灯装置1は、前記カバー部材7は、 Other components are the same as those of the first embodiment, the discharge lamp lighting device 1 in the form of the embodiment, the cover member 7,
少なくともその上部及び下部に通気孔73,73を有している。 And a vent hole 73, 73 at least on the top and bottom.

【0056】このもののカバー部材7は、合成樹脂あるいはアルミダイキャスト製の一面開口の四角状箱体で、 [0056] The cover member 7 of this product, a square-shaped box body of synthetic resin or aluminum die-cast one side opening,
その上下に、図5において、Bの矢印にて示す通気経路に沿って点灯装置6内部の空気を通気させる、それぞれ略角状の通気孔73,73が設けられて筐体5の後面板51に取り付けられている。 Above and below in FIG. 5, to vent the lighting device 6 inside the air along the ventilation path indicated by B arrows, face plate 51 after the housing 5 is substantially rectangular-shaped vent holes 73, 73 respectively provided It is attached to. この場合、上側の通気孔7 In this case, the upper vent hole 7
3には、点灯装置6内部への塵埃、雨水などの侵入を防止するため、例えばゴアテックスと呼ばれている通気性の防水布は配設され、また、下側の通気孔73は開放させてあり、内部にて結露が生じても点灯装置6内部に水が溜まることが無いようにしてある。 3, in order to prevent the lighting device 6 dust to the inside, the intrusion of rain water, for example, breathable waterproof fabric are called Gore-Tex is arranged, also, the vent holes 73 of the lower is opened Te there, even if dew condensation at the inside are so never accumulated water inside the lighting device 6. なお、このカバー部材7は、上記の構成以外に、勿論、全面に多数の微小開口をもったパンチングメタル製の一面開口の四角状箱体としても良い。 Incidentally, the cover member 7, in addition to the above configuration, of course, may be the entire surface to a number of rectangular-shaped box body of punching metal made of a surface opening having a small aperture.

【0057】したがって、以上説明した放電灯点灯装置1及び照明装置によると、放電灯2から点灯装置6への熱の影響を軽減化するとともに点灯装置6自体の自己発熱の大きい実装部品の熱がカバー部材7の上部及び下部に通気孔73,73を介して放熱されるので、電子部品への熱的ストレスを少なくできるとともに放電灯点灯装置1全体が機械的外力から保護され、以て、取り扱い性が向上する。 [0057] Accordingly, the foregoing according to the discharge lamp lighting device 1 and a lighting device described, the heat of the large mounting parts of the lighting device 6 itself self-heating as well as reduce the influence of heat upon the lighting device 6 from the discharge lamp 2 is since heat is radiated through the vent holes 73, 73 in the top and bottom of the cover member 7, the whole discharge lamp lighting device 1 it is possible reduce the thermal stress on the electronic components are protected from mechanical external force, than Te, the handling sex can be improved.

【0058】[第5の実施の形態]図6は、第5の実施の形態の放電灯点灯装置の概略構成を示す側面断面図である。 [0058] [Fifth Embodiment] FIG. 6 is a side sectional view showing a schematic configuration of a discharge lamp lighting device of the fifth embodiment.

【0059】この実施の形態の放電灯点灯装置は、樹脂材料を充填する構成のみが第1の実施の形態と異なるもので、他の構成部材は第1の実施の形態のものと同一で、該実施の形態の放電灯点灯装置1は、カバー部材7 [0059] The discharge lamp lighting device of this embodiment, only a configuration for filling the resin material in which differs from the first embodiment, other components are the same as those of the first embodiment, the discharge lamp lighting device 1 in the form of the embodiment, the cover member 7
内に伝熱性の高い樹脂材料65が充填されている。 High heat conductivity resin material 65 is filled within.

【0060】詳しくは、このものの点灯装置6は、図6 [0060] Specifically, the lighting device 6 of this thing, as shown in FIG. 6
に示すように、アルミダイキャスト製のカバー部材7内部に、回路基板61に実装されている電子部品自体からカバー部材7へ直接伝熱し易いように、例えばシリコン樹脂などの伝熱性の高い樹脂材料65が充填されている。 As shown in, the interior die-cast aluminum cover member 7, in order to facilitate heating directly Den from the electronic component itself mounted on the circuit board 61 to the cover member 7, for example, a high heat conductivity such as a silicon resin a resin material 65 are filled.

【0061】したがって、以上説明した放電灯点灯装置1及び照明装置によると、点灯装置6自体の自己発熱の大きい実装部品の熱が、カバー部材7内に充填された伝熱性の高い樹脂材料65を介してカバー部材7外に放出されるので、加熱にて劣化し易い電子部品への熱的ストレスを軽減化することができて放電灯点灯装置1をより小型化できる。 [0061] Thus, according to the discharge lamp lighting device 1 and a lighting device described above, the heat of the large mounting parts of the self-heating of the lighting device 6 itself, a high resin material 65 having heat conductivity which is filled in the cover member 7 since the released outer cover member 7 through, it more compact discharge lamp lighting device 1 can be reduced the thermal stress on the easy electronic components deteriorated by heating.

【0062】 [0062]

【発明の効果】本発明は、上述の実施態様の如く実施されて、放電灯から点灯装置への熱の影響の軽減化とともに点灯装置自体での発熱による電子部品への熱的ストレスも少なくでき、以て、放電灯点灯装置を容易に小型化できる。 The present invention exhibits, is carried out as the above embodiments, the thermal stress on the electronic components with mitigation of heat influence from the discharge lamp to the lighting device due to heat generation in the lighting device itself can be reduced , following Te, it can be easily miniaturized discharge lamp lighting device.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1の実施の形態の放電灯点灯装置の概略構成を示し、(a)は側面断面図、(b)は点灯装置の平面図である。 [1] shows a schematic configuration of a discharge lamp lighting apparatus of the first embodiment of the present invention, (a) is a side sectional view, a plan view of (b) is a lighting device.

【図2】同放電灯点灯装置の他の実施例の説明図である。 Figure 2 is an illustration of another embodiment of the discharge lamp lighting device.

【図3】第2の実施の形態の放電灯点灯装置の概略構成を示す側面図である。 3 is a side view showing a schematic configuration of a discharge lamp lighting apparatus of the second embodiment.

【図4】第3の実施の形態の放電灯点灯装置の概略構成を示す側面断面図である。 4 is a side sectional view showing a schematic configuration of a discharge lamp lighting apparatus of the third embodiment.

【図5】第4の実施の形態の放電灯点灯装置の概略構成を示す側面断面図である。 5 is a side sectional view showing a schematic configuration of a discharge lamp lighting device of the fourth embodiment.

【図6】第5の実施の形態の放電灯点灯装置の概略構成を示す側面断面図である。 6 is a side sectional view showing a schematic configuration of a discharge lamp lighting device of the fifth embodiment.

【図7】放電灯点灯装置の一回路例を示す概略回路図である。 7 is a schematic circuit diagram showing an example of a discharge lamp lighting device.

【図8】本発明の従来例である放電灯点灯装置を示す説明図である。 8 is an explanatory diagram showing a discharge lamp lighting apparatus which is a conventional example of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 放電灯点灯装置 2 放電灯 3 反射鏡 3a 開口部 4 ソケット 5 筐体 51 後面板 52 小開口 6 点灯装置 61 回路基板 62 遮熱部材 65 樹脂材料 7 カバー部材 72 放熱フィン 73 通気孔 8 蓋部材 81 通気開口 9 支持片 1 a discharge lamp lighting device 2 discharge lamp 3 reflector 3a openings 4 socket 5 after the housing 51 faceplate 52 small openings 6 lighting apparatus 61 the circuit board 62 heat insulating member 65 resin material 7 covering member 72 radiating fins 73 vents 8 lid member 81 vent opening 9 support piece

Claims (14)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 光源となる放電灯と、同放電灯の周囲を囲って配光制御をおこなう一面に開口部をもった反射鏡と、光源装着用のソケットと電気的に接続されて放電灯の点灯制御をおこなう点灯装置と、前記反射鏡を支持する前面開口の筐体とを備えた放電灯点灯装置において、 前記筐体の後面板に小開口を設け、前記点灯装置を、その回路基板が該小開口と略一致する外形を有するよう形成し、その実装部品側が筐体背面に突出するように回路基板を小開口と略同一位置に配置したことを特徴とする放電灯点灯装置。 1. A a discharge lamp as a light source, the discharge lamp and a reflecting mirror having an opening on one side for performing the light distribution control by surrounding the periphery of the socket is electrically connected to the discharge lamp for a light source fitting and a lighting device controlling lighting of the discharge lamp lighting apparatus having a housing of front opening for supporting the reflecting mirror, the small opening provided in the rear plate of the casing, the lighting device, the circuit board There discharge lamp lighting device, characterized in that formed to have an outer shape which substantially coincides with said small opening, the component-side is arranged in the small opening and substantially the same position of the circuit board so as to protrude to the rear housing.
  2. 【請求項2】 前記回路基板は、その実装部品を自己発熱の大きい部品が筐体の上部側、加熱にて劣化し易い部品が筐体の下部側となるよう配設された請求項1記載の放電灯点灯装置。 Wherein said circuit board includes an upper side of the large component is the housing of the self-heating the mounted components, according to claim 1, wherein arranged so that the lower side of the easy parts deteriorated by heating housing of the discharge lamp lighting device.
  3. 【請求項3】 前記回路基板に、筐体の上部側、下部側に区分する遮熱部材を設けた請求項2記載の放電灯点灯装置。 Wherein said circuit board, an upper side of the housing, a discharge lamp lighting device according to claim 2, wherein providing the heat insulating member for partitioning the lower side.
  4. 【請求項4】 前記遮熱部材を、前記回路基板上に設けられる部品実装された別回路基板とした請求項3記載の放電灯点灯装置。 Wherein said heat shield, said circuit discharge lamp lighting device according to claim 3, wherein the another circuit board which is component mounting provided on the substrate.
  5. 【請求項5】 前記点灯装置は、その実装部品側がカバー部材にて覆われてなる請求項1乃至4のいずれか一つの請求項に記載の放電灯点灯装置。 Wherein said lighting device, a discharge lamp lighting device according to any one of claims 1 to 4 that the component-side is covered with a cover member.
  6. 【請求項6】 前記小開口に、前記反射鏡側及び点灯装置側を区分する蓋部材を設けた請求項5記載の放電灯点灯装置。 Wherein said the small opening, the discharge lamp lighting device according to claim 5, wherein providing the cover member for dividing the reflecting mirror side and the lighting device side.
  7. 【請求項7】 前記ソケット後面に伝熱性の高い板金材料製の支持片を接合し、同支持片を前記後面板に保持させた請求項1乃至6のいずれか一つの請求項に記載の放電灯点灯装置。 7. A joint support piece made of high sheet metal heat conductivity in the socket rear, release according to the support piece in any one of claims 1 to 6 was held to the rear face plate lamp lighting device.
  8. 【請求項8】 前記カバー部材の上部に放熱フィンを設けた請求項5乃至7のいずれか一つの請求項記載の放電灯点灯装置。 8. The discharge lamp lighting device of any one of claims of claims 5 to 7 providing the radiation fins on the top of the cover member.
  9. 【請求項9】 前記支持片を、前記後面板又はカバー部材の上部側位置にて保持させた請求項7又は8記載の放電灯点灯装置。 Wherein said supporting piece, the discharge lamp lighting device of the rear face plate or claim 7 or 8, wherein was held at the upper side position of the cover member.
  10. 【請求項10】 前記蓋部材の上下に、前記点灯装置側と反射鏡側との通気開口を設けた請求項6乃至9のいずれか一つの請求項に記載の放電灯点灯装置。 And below the wherein said lid member, the discharge lamp lighting device according to any one of claims 6-9 provided with a vent opening of the reflection mirror side to the lighting apparatus.
  11. 【請求項11】 前記カバー部材は、少なくともその上部及び下部に通気孔を有する請求項5乃至10のいずれか一つの請求項に記載の放電灯点灯装置。 Wherein said cover member has a discharge lamp lighting device according to any one of claims 5 to 10 having at least its upper and lower ventilation holes.
  12. 【請求項12】 前記カバー部材内に伝熱性の高い樹脂材料が充填されてなる請求項5乃至10のいずれか一つの請求項に記載の放電灯点灯装置。 12. The discharge lamp lighting device according to any one of claims 5 to 10 high heat conductivity resin material into said cover member is filled.
  13. 【請求項13】 前記ソケットに、前記放電灯始動用のパルス発生部を設けた請求項1乃至12のいずれか一つの請求項に記載の放電灯点灯装置。 To 13. said socket, a discharge lamp lighting device according to any one of claims 1 to 12 provided with the pulse generator of the discharge lamp starting.
  14. 【請求項14】 請求項1乃至13のいずれか一つの請求項に記載の放電灯点灯装置を自動車用前照灯とした照明装置。 14. The discharge lamp lighting device automotive headlamp and the lighting device according to any one of claims 1 to 13.
JP2000301060A 2000-09-29 2000-09-29 Discharge lamp lighting device and lighting equipment Pending JP2002109918A (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008146933A (en) * 2006-12-07 2008-06-26 Koito Mfg Co Ltd Vehicular lamp
WO2012038997A1 (en) * 2010-09-21 2012-03-29 三菱電機株式会社 Light source lighting device and manufacturing method therefor
CN102809107A (en) * 2011-06-03 2012-12-05 株式会社小糸制作所 Vehicle lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008146933A (en) * 2006-12-07 2008-06-26 Koito Mfg Co Ltd Vehicular lamp
WO2012038997A1 (en) * 2010-09-21 2012-03-29 三菱電機株式会社 Light source lighting device and manufacturing method therefor
JP5538550B2 (en) * 2010-09-21 2014-07-02 三菱電機株式会社 Light source lighting device, manufacturing method thereof, and in-vehicle headlamp device
CN102809107A (en) * 2011-06-03 2012-12-05 株式会社小糸制作所 Vehicle lamp
US8985823B2 (en) 2011-06-03 2015-03-24 Koito Manufacturing Co., Ltd. Vehicle lamp having an LED and a drip-preventive cover

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