JP2007188832A - Lamp - Google Patents

Lamp

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JP2007188832A
JP2007188832A JP2006007670A JP2006007670A JP2007188832A JP 2007188832 A JP2007188832 A JP 2007188832A JP 2006007670 A JP2006007670 A JP 2006007670A JP 2006007670 A JP2006007670 A JP 2006007670A JP 2007188832 A JP2007188832 A JP 2007188832A
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light
part
source
member
heat
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JP2006007670A
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Japanese (ja)
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Shigeru Osawa
滋 大澤
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Toshiba Lighting & Technology Corp
東芝ライテック株式会社
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/233Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lamp capable of effectively restraining temperature rise of a light source and, of which, an outer shell member for heat dissipation can be equipped with a heat conduction channel led from the light source with little time and effort. <P>SOLUTION: A heat-receiving face 5 and a screw part 3 surrounding it are formed at one open end part of a first outer shell member 2 made of metal with its one end opened and the other end fitted with a base 61 and containing a lighting circuit 51 inside. A metallic light source mounting member 12 having a periphery part 12a in contact with the heat-receiving face 5 is installed to close the open end. A light source 21 having a light-emitting element 24 is mounted on the surface of the light source mounting member 12 so as to conduct heat to the same. Cylindrical cover parts 42, 43 surrounding the light source 21, a pressing part 44 in contact with the surface of a the periphery part 12a of the light source mounting member 12 positioned around the light source 21, and a second outer shell member 41 made of metal having a screw-in cylinder part 45 screwed into the screw part 3 are coupled with the first outer shell member 2 with the periphery part 12a pinched between them and the light-receiving face 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えばLED(発光ダイオード)等の発光素子を有した光源を備えるランプに関する。 The present invention relates to a lamp comprising a light source having a light emitting element such as, for example, LED (light emitting diode).

LEDは、その温度が上昇するに従い、光出力の低下とともに寿命も短くなることが知られている。 LED, in accordance with its temperature increases, it is known that the life is shortened with a decrease of the light output. このため、LEDを発光素子として用いたランプでは、LEDの温度上昇を抑制することが求められている。 Therefore, in the lamp using an LED as a light emitting element, it is required to suppress an increase in the temperature the LED.

従来、こうした要請に配慮して、LEDから伝わる熱を外部に放出するための金属製放熱部を備え、この放熱部を外部に露出させたLED電球が知られている(例えば、特許文献1参照。)。 Conventionally, in consideration to such demands, includes a metallic heat radiation portion for radiating heat transferred from the LED to the outside, LED bulbs is known to expose the heat radiating portion to the outside (for example, see Patent Document 1 .).

この特許文献1のLED電球は、略球体の内部に設けた金属基板の外面にLEDを実装している。 The LED bulb of Patent Document 1 is mounted an LED on the outer surface of the metal substrate which is provided in the interior of a substantially spherical body. 略球体は、一端に口金が設けられ、他端の開口部に向けてラッパ状をなす金属製放熱部と、前記開口部に取付けられた透光性カバーとにより形成されている。 Substantially spheres, mouthpiece provided at one end, a metal heat dissipation portion forming a flaring toward the opening of the other end, is formed by a translucent cover attached to the opening. 金属基板の周部は、絶縁性を有する高熱伝導部材を介して前記開口部に固着されている。 Peripheral portion of the metal substrate is fixed to the opening through the high thermal conductivity member having an insulating property.

これにより、LED電球の点灯中にLEDが発生した熱は、金属基板から高熱伝導部材を介してラッパ状の金属製放熱部に伝えられ、この放熱部の外周面から大気中に放出されるので、LEDの温度上昇を抑制できる。 Thus, the heat LED occurs during lighting of the LED light bulb, a metal substrate via the high thermal conductivity member is transmitted to the horn-shaped metal radiating portion, since it is released into the atmosphere from the outer circumferential surface of the heat radiating portion It can suppress an increase in the temperature the LED.
特開2001−243809号公報(段落0005、0011−0013、図1) JP 2001-243809 JP (paragraphs 0005,0011-0013, Figure 1)

特許文献1の技術では、LEDを覆うカバーは光の投射を妨げないように透光性とする必要があり、このカバーは放熱には寄与していない。 In Patent Document 1 technique, cover that covers the LED is required to be translucent so as not to interfere with the projection of light, the cover does not contribute to heat dissipation. このため、LEDの熱は、金属基板より金属製放熱部に熱伝導されて、この放熱部の表面から専ら大気中に放出されるに止まるから、LEDの温度上昇を抑制する上では改善の余地がある。 Therefore, LED of heat is conducted to the metallic heat radiating portion of a metal substrate, room for because it stops exclusively released into the atmosphere from the surface of the heat radiating portion, improvement in suppressing the temperature rise of the LED there is. このことは、ランプを小形化にするほど、放熱部が小さくなり放熱面積が減るので、顕在化する。 This is, the more the lamp miniaturization, since the heat radiating area radiating portion is reduced decreases, manifest.

又、放熱部の開口端部に高熱伝導部材を介して金属基板の周部を取付ける手法として、高熱伝導部材を溶融させた後に固化させることで接合部材として用いる第1手法、或いは、高熱伝導部材の内外に金属基板及び放熱部を圧入する第2手法、若しくは、圧入に代えて接着剤を用いて高熱伝導部材の内外に金属基板及び放熱部を接着する第3手法が考えられる。 The first approach used in the open end of the radiating portion as a method through the high thermal conductivity member attached to the peripheral portion of the metal substrate, as the bonding member by solidifying after melting the high thermal conductivity member, or high thermal conductivity member the second method for press-fitting the metal substrate and the heat radiating portion in and out, or third method for bonding a metallic substrate and the heat radiating portion in and out of the high thermal conductivity member using an adhesive instead of press-fitting is considered.

しかし、第1手法は、加熱炉が必要で実施に手間が掛かるとともに、LEDに熱ストレスを与えないためには、この第1手法を得た後に金属基板にLEDを取付けなければならないという組立て上の問題がある。 However, the first approach, with troublesome requires an implementation heating furnace, in order not to give a thermal stress in the LED, assembled on that must be attached to LED on metal substrate after obtaining the first approach there is a problem. 第2手法では、圧入をするための機器が必要であるとともに、その圧入作業を二度必要とするので、手間が掛かる。 In the second approach, with the equipment is necessary for the press-fitting, because it requires the press-fitting operation twice, time-consuming. 第3手法では、接着する手間が二度必要であり、かつ、接着剤が固化するまでの時間を要するから、手間が掛かる。 In the third approach, trouble of adhesion is required twice, and, since it takes time until the adhesive is solidified, time-consuming.

本発明の目的は、光源の温度上昇を効果的に抑制できるとともに、放熱のために光源から外郭部材に至る熱伝導経路を簡単な手間で作ることができるランプを提供することにある。 An object of the present invention, along with the temperature rise of the light source can be effectively suppressed to provide a lamp which can make the heat conduction path in the outer member from a light source for radiating a simple effort.

請求項1の発明は、一端が開口され、この開口の端部に受熱面及びこの受熱面を囲むねじ部が形成され、かつ、内部に点灯回路が収容された金属製の第1の外郭部材と;この外郭部材の他端部側に配設された口金と;前記受熱面に接する周部を有して前記一端開口を閉じて配設された金属製の光源取付け部材と;発光素子を有して前記光源取付け部材の表面にこの光源取付け部材に熱伝導するように装着された光源と;この光源を囲む筒状のカバー部、前記光源の周囲に位置された前記光源取付け部材の周部表面に接する押え部、及び前記ねじ部にねじ込まれる螺合筒部を有して、前記周部を前記受熱面との間に挟みつけて前記第1の外郭部材に連結された金属製の第2の外郭部材と;を具備したことを特徴としている。 The invention according to claim 1, one end is opened, the heat receiving surface at an end portion of the opening and the screw part surrounding the heat receiving surface is formed, and the first outer member made of metal internal to the lighting circuit is accommodated When; this and the other end disposed in the mouthpiece of the outer member; and a light source mounting member having the heat receiving surface in contact with the peripheral portion made of the one end opening to close disposed metal; a light emitting element on the surface of the light source mounting member comprises a mounting light sources so as to heat conduction to the light source mounting member; cylindrical cover portion surrounding the light source, the peripheral of the light source mounting member which is located around the light source pressing portion in contact with the part surface, and a threaded cylindrical portion which is screwed into the threaded portion, the peripheral portion of the scissors dipped in made of metal that is connected to said first outer member between said heat receiving surface It is characterized by comprising a; and the second outer member.

この発明で、第1、第2の外郭部材及び光源取付け部材をなす金属には、鉄及びその合金、これらよりも熱伝導性がよい金属例えば銅及びその合金、更に鉄及びその合金より軽い軽金属例えばアルミニウム及びその合金等を使用できる。 In the present invention, first, the metal forming the second outer member and the light source mounting member, iron and their alloys, thermal conductivity good metal such as copper and its alloys than these, lighter than steel and its alloys light metal for example, an aluminum and its alloys, etc. can be used. この発明で、第1、第2の外郭部材の放熱面積をより増やすための構成として、これら外郭部材の外周面に、この面を粗面とするためのローレット加工を施こすことは可能であり、これに代えて放熱フィンを形成することも可能である。 In the present invention, first, as a configuration for increasing further the heat radiation area of ​​the second outer member, the outer peripheral surface of the outer member, it is possible to straining facilities knurled to this surface and rough surface it is also possible to form the heat radiation fins instead. 更に、第1、第2の外郭部材の外周面を防錆のための保護膜でコーテングしてもよく、この場合、黒色の保護膜をコーテングすれば、第1、第2の外郭部材から外部への熱輻射を更に向上できる点で好ましい。 Further, the first may be the outer circumferential surface of the second outer member Kotengu a protective film for rust prevention, in this case, if Kotengu the protective film of black, external from the first, second outer member more preferred in that it can improve the heat radiation to.

この発明で、発光素子は、電気エネルギーを光に変換するものであって、例えば半導体発光素子とも称される発光ダイオード(LED)を好適に用いることができるが、エレクトリックルミネッセンス素子(EL素子)を用いることも可能である。 In the present invention, the light emitting element is for converting electric energy to light, such as at the semiconductor light-emitting device can be suitably used a light-emitting diode (LED) referred, an electric luminescent element (EL element) it is also possible to use. また、使用する発光素子の数は1以上であればよい。 Further, the number of light-emitting elements used may be one or more. この発明で、発光素子は、光源取付け部材の表面に直接熱伝導するように直に実装することもでき、或いは、発光素子を光源基板に実装して、この基板を光源取付け部材の表面に熱伝導するように装着することもできる。 In the present invention, the light emitting device, can also be directly implemented to heat conduction directly to the surface of the light source attachment member, or, by mounting the light emitting element to the light source substrate, heat the substrate to the surface of the light source attachment member It may be mounted to conduct.

この発明で、第1の外郭部材のねじ部は、雌ねじ又は雄ねじで形成でき、それに合わせて螺合筒部が有するねじ部も雌ねじ又は雄ねじとすることができる。 In the present invention, the screw portion of the first outer member may be formed with internal thread or external thread, a screw portion provided in the screwed cylinder portion can also be a female thread or male thread accordingly.

請求項1の発明では、光源の発光素子が発生して金属製の光源取付け部材に伝導された熱を、光源取付け部材の周部から第1の外郭部材の受熱面に伝導させて、この第1の外郭部材の表面から大気中に放出できる。 In the invention of claim 1, the heat emitting element of the light source is conducted to the metal source mounting member is generated, and the peripheral portion of the light source mounting member is conducted to the heat receiving surface of the first outer member, the first It can be released from the surface of one of the outer member to the atmosphere. これに加えて、第1の外郭部材の熱が、この外郭部材のねじ部と金属製の第2の外郭部材の螺合筒部との噛み合い部を通して第2の外郭部材に伝導される一方で、光源取付け部材の熱の一部もこれに接する押え部から第2の光源取付け部材に伝導される。 In addition, while the heat of the first outer member is conducted through the meshing portion between the threaded cylindrical portion of the threaded portion and the metal of the second outer member of the outer member to the second outer member , it is conducted to the second light source mounting member from the holding portion a part of the heat of the light source attachment member in contact thereto. このため、第2の外郭部材では主としてそのカバー部から大気中に熱を放出できる。 Therefore, heat can be released to the atmosphere from mainly the cover part in the second shell member. このように光源を囲むカバー部を有した第2の外郭部材を利用して放熱面積を増やしているので、光源の発光素子の温度上昇を効果的に抑制できる。 Since the using the second outer member having a cover portion surrounding the light source are increasing the heat radiation area can be effectively suppress an increase in the temperature of the light emitting elements of the light source.

以上の放熱経路を組立てる際には、まず、光源が装着された光源取付け部材を第1の外郭部材の一端開口部に嵌めて、光源取付け部材の周部を第1の外郭部材の受熱面に当接させる。 When assembling the above heat dissipation path, first, the light source mounting member in which the light source is mounted is fitted to the opening at one end of the first outer member, the peripheral portion of the light source mounting member to the heat receiving surface of the first outer member It is brought into contact. 次に、第2の外郭部材をそのカバー部の内側に光源を配置させながら光源取付け部材に被せながら、第2の外郭部材の螺合筒部を第1の外郭部材のねじ部に噛み合わせてねじ込めばよい。 Then, while covering the second outer member to the light source mounting member while placing the light source on the inner side of the cover portion, and engage the threaded cylindrical portion of the second outer member to the threaded portion of the first outer member it may be screwed.

このねじ込みの進行により、押え部が光源取付け部の周部を押圧するので、この周部が押え部と受熱面との間に強く挟まれて、光源取付け部材と受熱面とが熱伝導できるように密接されるとともに、光源取付け部材と押え部とが熱伝導できるように密接される。 The progress of this screwing, the pressing portion presses the peripheral portion of the light source mounting portion, the peripheral portion is sandwiched strongly between the pressing portion and the heat receiving surface, so that the light source mounting member and the heat receiving surface can be thermally conductive while it is closely, and the light source mounting member and the pressing portion is closely allow thermal conduction. 以上の組立てにおいては、加熱炉や圧入用の機器を用いることも、又、二度の接着を必要とすることもなく、第1の外郭部材の一端開口部側に同じ方向から光源取付け部材及び第2の外郭部材を順次組付けることで、簡単に実施できる。 In the above assembly, also be used equipment furnaces and the press-fitting, also, without the need for adhesive twice, the light source mounting member to the one opening side from the same direction of the first outer member and by sequentially assembling the second outer member, it can be easily implemented.

請求項2の発明は、前記周部の高さを前記螺合筒部の高さより大きくして、前記第1の外郭部材の一端開口端部と前記螺合筒部の先端との間に、前記ねじ部と螺合筒部との噛み合い部に連通するスペースを形成するとともに、前記ねじ部と螺合筒部とを接着剤により接着したことを特徴としている。 The invention of claim 2, the height of the peripheral portion is greater than the height of the screwed cylinder portion, between the tip of the one end opening end portion and the screwing tubular portion of the first outer member, to form a space that communicates with the engagement portion between the threaded portion and the threaded cylindrical portion, it is characterized in that by means of an adhesive and said threaded portion and screwed tube portion.

この発明では、第1、第2の外郭部材、及び光源取付け部材の寸法公差内でのばらつきを、噛み合い部に連通するスペースで吸収して、光源取付け部材の周部を押え部と受熱面との間に確実に挟持できる。 In the present invention, first, second outer member, and a variation in the dimensional tolerances of the light source attachment member absorbs a space communicating with the engaging portion, and the peripheral portion of the pressing portion and the heat receiving surface of the light source mounting member It can be reliably held between the. しかも、噛み合い部を接着剤で接着したので、ランプをランプソケットに着脱操作する際に回転操作力で、噛み合いが緩んで既述の挟持状態が緩むおそれがない。 Moreover, because bonding the engaging portion with adhesive, to a rotational operation force to the mounting and demounting operation the lamp socket, there is no possibility of loosening clamping state described above loose engagement ramp. これとともに、噛み合い部を接着剤で接着する際に、余剰の接着剤を前記スペースに溜めることができる。 Simultaneously, it is possible to store the time of bonding the mating portion with an adhesive, the excess adhesive to said space.

請求項1の発明によれば、光源の温度上昇を効果的に抑制できるとともに、光源から放熱のために外郭部材に至る熱伝導経路を簡単な手間で作ることができるランプを提供できる。 According to the present invention, along with the temperature rise of the light source can be effectively suppressed, it is possible to provide a lamp which can make the heat conduction path to the outer member for heat radiation from the light source in a simple effort.

請求項2の発明によれば、光源取付け部材の周部を押え部と受熱面との間に確実に挟持させるとともに、この状態の維持を確実にさせる接着剤の余剰分を溜めるスペースを確保できるランプを提供できる。 According to the invention of claim 2, it causes securely held between the circumferential portion pressing portion and the heat receiving surface of the light source mounting member can secure a space for storing the excess adhesive which ensures maintenance of this state it is possible to provide a lamp.

図1〜図6を参照して本発明の一実施形態を説明する。 Referring to FIGS. 1 to 6 will be described an embodiment of the present invention.

図1及び図2中符号1は電球型のランプを示している。 1 and 2, reference numeral 1 denotes a bulb-type lamp. ランプ1は、金属製の第1の外郭部材2、光源アセンブリ11、金属製の第2の外郭部材41、点灯回路51、絶縁部材55、及び口金61を備えている。 Lamp 1, the first outer member 2 made of metal, the light source assembly 11, the second outer member 41 made of metal, the lighting circuit 51 includes an insulating member 55, and the mouthpiece 61.

第1の外郭部材2は例えばアルミニウム合金や黄銅のダイキャスト製品等の一体成形品からなる。 The first shell member 2 is made of a single piece, such as a die-cast products such as aluminum alloy or brass. 図2及び図3に示すように第1の外郭部材2は、一端及び他端が夫々開口された筒状をなし、その一端から他端に行くにつれて径が次第に狭まっている。 The first outer member 2 as shown in FIGS. 2 and 3, without the one end and the other end is respectively apertured cylindrical, diameter is narrowed gradually as going to the other end from one end. 他端開口に比較して大径な一端開口の端部には、ねじ部3と、環状段部4と、受熱面5と、位置決め部6とが形成されている。 Compared to the other end opening in an end portion of the large-diameter opening at one end, a threaded portion 3, an annular step 4, the heat receiving surface 5, and a positioning portion 6 is formed.

すなわち、図3及び図5等に示されるように前記一端の開口端部には、その端面から前記他端開口に向けて後退した環状段部4が形成されている。 That is, the open end of the end, as shown in FIGS. 3 and 5 or the like, the annular stepped portion 4 is formed receding toward the other end opening from the end face. この環状段部4から一端開口端にわたる環状壁は、ねじ部3を形成しており、そのために前記環状壁の例えば内周部は雌ねじが設けられている。 The annular wall from the annular stepped portion 4 over one open end, it forms a threaded portion 3, the inner peripheral portion for example of the annular wall internally threaded is provided for this purpose. したがって、第1の外郭部材2を正面から見た場合にねじ部3は環状段部4を囲んでいる。 Accordingly, the screw portion 3 when viewed first outer member 2 from the front surrounds an annular step 4. 環状段部4の内周部位には、第1の外郭部材2の正面方向及び内周面に開放する環状の補助溝4aが形成され、この補助溝4aの底をなした奥の面は受熱面5をなしている。 The inner peripheral portion of the annular stepped portion 4, an annular auxiliary grooves 4a opened to the front direction and the inner peripheral surface of the first outer member 2 is formed, the back surface which forms the bottom of the auxiliary grooves 4a are heat and it forms a surface 5. なお、本発明では補助溝4aを省略して環状段部4自体を受熱面とすることもできる。 In the present invention may be a heat receiving surface of the annular step portion 4 itself is omitted auxiliary grooves 4a. 図2に示すように第1の外郭部材2にはその内径に変化がない部位2aが環状段部4に連続して設けられている。 Site 2a no change in the inner diameter thereof is provided continuously on the annular stepped portion 4 to the first outer member 2 as shown in FIG.

図3に示すように位置決め部6は補助溝4aを避けて環状段部4に形成されている。 Positioning portion 6 as shown in FIG. 3 is formed on the annular step 4 to avoid the auxiliary groove 4a. 位置決め部6は、1以上あればよく、複数例えば180度隔たった位置に夫々設けられている。 Positioning portion 6 may be any one or more, are provided respectively in the plurality of, for example 180 degrees apart locations. なお、図示の位置決め部6は突起により形成したが、これに代えて凹部により形成することもできる。 The positioning unit 6 shown has been formed by the projection may also be formed by the recess instead.

図2に示すように光源アセンブリ11は、金属製の光源取付け部材12、光源21、伝熱シート30、及び光源カバー32を備え、これらを組立てて形成されている。 Light source assembly 11, as shown in FIG. 2, the metallic light source mounting member 12, light source 21 comprises a heat transfer sheet 30 and the light source cover 32, and is formed by assembling them.

光源取付け部材12は、例えばアルミニウム合金や黄銅のダイキャスト製品等の一体成形品又はプレス成形品からなる。 Light source mounting member 12 is made of, for example, integrally molded article such as an aluminum alloy or brass die cast product or a press-molded article. 図3及び図4に示すように光源取付け部材12は正面視円形であり、その周部12aは裏面に突出する周壁12bを有している。 Light source mounting member 12 as shown in FIG. 3 and FIG. 4 is a front view circular, the peripheral portion 12a has a peripheral wall 12b projecting on the rear surface. この周壁12bは切れ目なく環状に連続していることが好ましいが、一部が途切れていてもよい。 It is preferable that the continuous with the peripheral wall 12b is seamlessly cyclic, or a part thereof may be interrupted.

光源取付け部材12には、複数例えば二つの連結孔13と、二つの通線孔14と、複数例えば二つの位置決め凸部15が夫々設けられている。 The light source mounting member 12, a plurality of, for example, two connecting holes 13, the two wire-passing hole 14, a plurality of, for example two locating protrusions 15 are provided respectively. 対をなす孔同士又は位置決め凸部同士はいずれも180度隔たっている。 They are spaced 180 degrees Any holes or between the positioning convex portions paired. 位置決め凸部15は円柱状のピンで形成され、光源取付け部材12の表面から直角に突出されている。 Positioning convex portion 15 is formed by a cylindrical pin, which protrudes at right angles from the surface of the light source mounting member 12.

図3及び図4に示すように周壁12bには前記位置決め部6に嵌合される回り止め受け部16が、1以上、例えば複数、具体的には二つ設けられている。 3 and detent receiving portion 16 fitted to the positioning portion 6 on the peripheral wall 12b as shown in FIG. 4, one or more, for example, a plurality, specifically provided two. これら回り止め受け部16は例えば周壁12bの先端面に開放する凹部で形成されている。 These detent receiving portion 16 is formed in a recess which opens the distal end surface of the example peripheral wall 12b. しかし、前記位置決め部6が凹部で形成される場合には、凸部によって回り止め受け部16が形成される。 However, the positioning unit 6 when formed in the recess, the latch receiving portion 16 around the convex portion is formed.

光源取付け部材12は、周壁12bを補助溝4aに嵌合させることにより、周壁12aその先端部を受熱面5に当接させて第1の外郭部材2の一端開口を塞いで配置されている。 Light source mounting member 12, by fitting the peripheral wall 12b in the auxiliary grooves 4a, are arranged blocking the first end opening of the shell member 2 is brought into contact with the peripheral wall 12a the distal end to the heat receiving surface 5. この状態で、位置決め部6と回り止め受け部16とが凹凸嵌合されて、光源取付け部材12は第1の外郭部材2に対して回り止めされている。 In this state, is a receiving unit 16 stops rotation and the positioning portion 6 is uneven engaged, the light source mounting member 12 is prevented from rotating relative to the first outer member 2.

図2及び図4に示すように光源21は、ベース22の表面に光源基板23を配設して形成されている。 Light source 21 as shown in FIGS. 2 and 4 are formed by disposing the light source substrate 23 on the surface of the base 22. ベース22はアルミニウム製である。 The base 22 is made of aluminum. 光源基板23の中央部にチップ状の発光素子24が実装されている。 Emitting element 24 of the chip-to the central portion of the light source substrate 23 is mounted. 発光素子24にはLEDが使用されている。 LED is used for the light emitting element 24. この発光素子24は半球状をなした透明な保護ガラス25で封止されている。 The light emitting element 24 is sealed by a transparent protective glass 25 which forms a semi-spherical shape. 光源基板23の表面は、透明な保護ガラス25と、その周囲に周方向に等間隔で設けた複数のランドを露出させて絶縁層(図示しない)で絶縁されている。 The surface of the light source substrate 23 includes a transparent protective glass 25 are insulated by an insulating layer (not shown) to expose the plurality of lands provided at equal intervals in the circumferential direction on the periphery thereof.

光源21には、二つの電線通し部27が光源21の周方向に沿って180度隔てて設けられているとともに、二つの回り止め係合部28が光源21の周方向に沿って180度隔てて設けられ、更に、二つの通し部29が光源21の周方向に沿って180度隔てて設けられている。 The light source 21, along with two wire insertion portion 27 is provided apart 180 degrees in the circumferential direction of the light source 21, spaced 180 degrees along the circumferential direction of the two detent engaging portion 28 is a light source 21 provided Te, further, two insertion portions 29 are provided apart 180 degrees in the circumferential direction of the light source 21. 電線通し部27、回り止め係合部28、通し部29は、光源21の周縁に開放するU字状の切欠き溝で形成されているが、通孔で形成してもよい。 Wire insertion portion 27, detent engaging portions 28, through portion 29 is formed with U-shaped notched groove which opens to the periphery of the light source 21 may be formed with through holes.

図2に示すように光源21は、そのベース22を光源取付け部材12の表面に向けて、この表面との間に伝熱シート30を挟んで光源取付け部材12の中央部上に配置されている。 Light source 21 as shown in FIG. 2, the base 22 toward the surface of the light source mounting member 12 is disposed on the central portion of the light source attachment member 12 across the heat transfer sheet 30 between the surface . この配置状態において、一対の回り止め係合部28に位置決め凸部15が嵌合されている。 In this arrangement, the positioning projection 15 is fitted in a pair of detent engaging portion 28. 光源21の周方向の回転を防止するために、円柱状ピンからなる位置決め凸部15の径と、溝からなる回り止め係合部28の幅は略同じであるとともに、光源21が径方向に移動しないようにするために、位置決め凸部15は回り止め係合部28の奥面に接するように回り止め係合部28に嵌合されている。 To prevent rotation in the circumferential direction of the light source 21, and the diameter of the positioning projection 15 consisting of a cylindrical pin, along with the width of the detent engaging portion 28 of the groove is substantially the same, the light source 21 in the radial direction to avoid moving, positioning convex portion 15 is fitted to the detent engagement portions 28 so as to be in contact with the inner surface of the detent engaging portion 28. こうした回り止めにより、第1の外郭部材2の中心軸線上に発光素子24が配置され、かつ、電線通し部27と通線孔14とが連通するとともに、通し部29と連結孔13とが連通する状態に、光源21が位置決めされている。 With such detent, the light emitting element 24 to the first center axis of the outer member 2 is disposed, and, together with the wire insertion portion 27 and the Tsusen'ana 14 communicates, it communicates with the through portion 29 and the coupling hole 13 the state, the light source 21 is positioned.

伝熱シート30は、熱伝導性に優れた弾性材料からなるシートであり、シリコン樹脂製シートを好適に使用できる。 Heat transfer sheet 30 is a sheet made of high elastic material thermal conductivity, the silicone resin sheet can be suitably used. 伝熱シート30は光源21より大形である。 Heat transfer sheet 30 is large from the light source 21. 図4に示すように伝熱シート30の周部には、光源21の電線通し部27、回り止め係合部28、通し部29の夫々に個別に対向して連通する逃げ部30a〜30fが設けられている。 The peripheral portion of the heat transfer sheet 30 as shown in Figure 4, wire insertion portion 27 of the light source 21, detent engaging portion 28, the relief portion 30a~30f communicating opposite individually to each of the insertion portions 29 It is provided. これらの逃げ部30a〜30fは、例えばU字形状の溝からなる。 These relief portions 30a~30f is made of, for example, grooves of U-shape.

図2に示すように光源カバー32は、例えば、ホルダー33と、配光制御機能を有する配光制御部材例えばレンズ34とを組合せてなる。 Light source cover 32, as shown in FIG. 2, for example, a holder 33, composed of a combination of a light distribution control member such as a lens 34 having a light distribution control function. この構成は、レンズ34を成形した透明材料とは異なる材料でホルダー33を形成できる点で好ましい。 This configuration is preferable in that it can form a holder 33 of a different material than the transparent material was molded lens 34.

図6に示すようにホルダー33は、電気絶縁性の材料例えば非透光性合成樹脂を半円筒状に成形してなる一対のホルダー部材33aを、互いの合せ面に設けた突起35と穴36とを嵌合させることによって組立てられている。 Holder 33 as shown in FIG. 6, the pair of holder members 33a for the electrically insulating material, such as non-translucent synthetic resin formed by molding the semi-cylindrical, protrusion 35 and the hole 36 provided in the mating surface of each other It is assembled by fitting and. ホルダー33の軸方向一端部は受け部37をなしており、この受け部37には内周面に開放する係合溝38が設けられている。 One axial end portion of the holder 33 has no receiving portion 37, an engaging groove 38 opened to the inner peripheral surface is provided in the receiving portion 37.

ホルダー33の軸方向他端部は、光源21の周部表面に接する当接部39をなしている。 The other axial end portion of the holder 33 is formed in a contact portion 39 in contact with the periphery surface of the light source 21. 当接部39はホルダー33の軸方向他端部に設けた切欠き33bによりホルダー33の周方向に沿って複数に分かれている。 Are divided into a plurality in the circumferential direction of the holder 33 by the contact portion 39 is a notch formed in the axial end portion of the holder 33 33b. 更に、ホルダー33には前記通し部29と同数のねじ穴40が突設されている。 Moreover, screw holes 40 in the same number as that of said insertion portions 29 is projected from the holder 33.

レンズ34は、透明の合成樹脂やガラスにより一体成形されたもので、例えば円錐面状の反射面34aと、出射面34bと、この出射面34bの反対側おいて入射面34cにより区画された凹部34dとを有しているとともに、出射面34b側の端部に周方向に連続して突設されたフランジ34eとを有している。 Lens 34 has been integrally molded by a synthetic resin or glass transparent, for example, a conical shape of the reflecting surface 34a, an exit surface 34b, recesses defined by the incident surface 34c at the opposite side of the exit surface 34b together and a 34d, and a flange 34e which projects continuously to the end of the exit surface 34b side in the circumferential direction.

レンズ34は、そのフランジ34eを係合溝38に嵌めこむことによって、一対のホルダー部材33a間に挟持され、それにより、出射面34bを受け部37と略面一にしてホルダー33の内側に支持されている。 Lens 34 is supported by a way to push fitted the flange 34e with the engaging groove 38, is sandwiched between a pair of the holder members 33a, whereby, in the receiving portion 37 substantially flush with the exit surface 34b to the inside of the holder 33 It is.

光源カバー32は光源21を覆って配置されている。 Light source cover 32 is disposed over the light source 21. すなわち、光源21が有した光源基板23の周部表面に各ランドを避けて当接部39を接触させるとともに、一対のねじ穴40を光源21の通し部29に夫々対向させて、光源カバー32が光源21に対して配置されている。 That is, to avoid the lands on the periphery surface of the light source substrate 23 in which the light source 21 had with contacting the abutment 39, by respectively opposed to the through portions 29 of the pair of screw holes 40 light source 21, a light source cover 32 There are disposed relative to the light source 21. このように光源21を覆って配置された光源カバー32は、そのレンズ34の光軸A(図2参照)が、光源21が有した発光素子24の光軸と一致するように光源21に対して位置決めされている。 Thus the light source cover 32 disposed over the light source 21, the optical axis A of the lens 34 (see FIG. 2), with respect to the light source 21 so as to coincide with the optical axis of the light emitting element 24 in which the light source 21 had It is positioned Te. 又、この位置決め状態において、凹部34dには保護ガラス25が収容され、切欠き33bは電線通し部27又は回り止め係合部28に夫々対向するようになっている。 Further, in this positioned state, the recess 34d is protective glass 25 is housed, the notch 33b is arranged to respectively face the wire insertion portion 27 or the detent engaging portion 28.

そして、既述のように組み合わされた光源取付け部材12、光源21、伝熱シート30、及び光源カバー32は、連結手段例えば二本のねじ26により連結されて光源アセンブリ11をなしている。 The light source mounting member 12 are combined as described above, the light source 21, the heat transfer sheet 30 and the light source cover 32, is formed in a light source assembly 11 is connected by a connecting means such as two screws 26. ねじ26には皿ねじを好適に用いることができる。 It can be used countersunk screws suitably the screw 26. これらのねじ26は、連結孔13に挿入され逃げ部30c又は30d及び通し部29を通ってねじ穴40にねじ込まれている。 These screws 26 are screwed into the screw holes 40 through the relief portion 30c or 30d and the insertion portions 29 are inserted into the coupling hole 13. それにより、伝熱シート30を通して光源取付け部材12に光源21のベース22が効率よく伝熱されるように、光源取付け部材12と光源カバー32との間に光源21及び伝熱シート30が挟着されて組立てられている。 Thereby, so that the base 22 of the light source 21 to the light source mounting member 12 through the heat transfer sheet 30 is efficiently heat transfer, the light source 21 and the heat transfer sheet 30 between the light source mounting member 12 and the light source cover 32 is clamped It is assembled Te.

第2の外郭部材41は、これが連結される第1の外郭部材2とともにランプ1の外郭を形成している。 The second outer member 41, which forms the first outer shell of the lamp 1 together with the outer member 2 to be connected. 第2の外郭部材41は例えばアルミニウム合金や黄銅のダイキャスト製品等の一体成形品からなる。 The second outer member 41 is made of a single piece such as, for example, aluminum alloy or brass die cast products. 図1〜図3に示すように第2の外郭部材41は、カバー部42,43と、押え部44と、螺合筒部45とを備えている。 The second outer member 41 as shown in FIGS. 1 to 3 includes a cover portion 42 and 43, the holding portion 44, and a threaded tubular portion 45. カバー部42,43の内の一方は省略することが可能である。 One of the cover portion 42 and 43 can be omitted.

カバー部42は、第2の外郭部材41の中央部に設けられていて、光源21、伝熱シート30、及び光源カバー32を収容できる長さを有した筒状に形成されている。 Cover portion 42 is provided on the central portion of the second outer member 41, the light source 21, it is formed in the heat transfer sheet 30, and the cylindrical shape having a length that the light source cover 32 can be accommodated. カバー部42はその先端に内方に突出する環状の引っ掛けフランジ42aを有している。 Cover portion 42 has an annular hook flange 42a projecting inwardly at the tip. カバー部43は第2の外郭部材41の外周部に設けられている。 Cover portion 43 is provided on the outer peripheral portion of the second outer member 41. したがって、カバー部42,43はいずれも光源21を囲んでいる。 Thus, any cover 43 surrounds the light source 21. 外側のカバー部43の高さは、内側のカバー部42より低いが、これは同じでもよく、又、高くてもよい。 The height of the outer cover portion 43 is less than the inner cover portion 42, which may be the same or may be higher. 又、これらのカバー部42,43はそれらの間の環状空隙Gを埋めて一体に形成してもよい。 Moreover, these covers 42, 43 may be formed integrally fills the annular gap G therebetween. しかし、環状空隙Gの存在は、第2の外郭部材41から大気中への放熱に供する面積をより多く確保できるとともに、ランプ1を軽量にできる点で好ましい。 However, the presence of the annular gap G, together with more can be secured area to provide a second outer member 41 to the heat dissipation to the atmosphere, preferably in that possible lamp 1 to light.

押え部44は光源取付け部材12の少なくとも周部12aの表面に接する部位であり、この押え部44によってカバー部42,43が一体に連続されている。 Pressing portion 44 is a portion in contact with the surface of at least the peripheral portion 12a of the light source mounting member 12, the cover portion 43 is integrally continuous with the pressing portion 44. 螺合筒部45は、押え部44の裏面に一体に突設されていて、その軸方向に延びる突出高さ(長さ)は、光源取付け部材12の周壁12bの軸方向に延びる突出高さ(長さ)より短いとともに、ねじ部3の突出高さよりも短い。 Threaded tubular portion 45 on the rear surface of the pressing portion 44 are integrally projects, projection height extending in the axial direction (length), the protruding height extending in the axial direction of the peripheral wall 12b of the light source mounting member 12 with less than (length) shorter than the protrusion height of the thread portion 3. 螺合筒部45は、その外周面に雄ねじを設けて形成されていて、前記ねじ部3に螺合されている。 Threaded tubular section 45 is formed by providing a male screw on its outer peripheral surface is screwed into the threaded portion 3. なお、ねじ部3が雄ねじを有している場合には、螺合筒部45のねじ部は雌ねじで形成される。 In the case where the screw portion 3 has an external thread, the threads of the threaded tubular portion 45 is formed with internal thread.

第2の外郭部材41は、その螺合筒部45を第1の外郭部材2のねじ部3にねじ込むことにより第1の外郭部材2に連結されている。 The second outer member 41 is connected to the first outer member 2 by screwing the threaded tubular portion 45 on the first threaded portion 3 of the outer member 2. この連結状態で、ねじ部3とカバー部43とは隙間なく当接し、かつ、これらの外表面は面一に連続している。 In this connected state, contact without any gap and the threaded portion 3 and the cover portion 43, and these outer surfaces are contiguous and flush. 同連結状態では、押え部44が光源取付け部材12の周部12aに押付けられているとともに周壁12bの先端面が受熱面5に押付けられて、この受熱面5と押え部44との間に周壁12aの周壁12bが挟着されている。 In the connected state, the peripheral wall between the front end surface of the peripheral wall 12b with the pressing portion 44 is pressed against the peripheral portion 12a of the light source attachment member 12 is pressed against the heat receiving face 5, and the pressing portion 44 the heat receiving face 5 peripheral wall 12b of 12a is sandwiched. このため、第2の外郭部材41は光源アセンブリ11の取付け部材として機能している。 Therefore, the second outer member 41 functions as a mounting member of the light source assembly 11.

さらに、前記突出高さの差によって、図5に示されるように第1の外郭部材2の開口端部に形成された環状段部4と螺合筒部45の先端との間に、スペースSが形成されている。 Furthermore, the difference of the projection height, between the tip of the first annular step 4 is formed on the open end of the outer shell member 2 and the threaded tubular portion 45 as shown in FIG. 5, the space S There has been formed. このスペースSはねじ部3と螺合筒部45との噛み合い部に形成される僅かな遊び連通されている。 The space S is communicated slight play communicating formed engagement portion of the threaded portion 3 and screwed tube portion 45. そして、噛み合い部の遊びには接着剤B(図5中太線で示す。)が供給され、この接着剤Bによりねじ部3と螺合筒部45とが接着されている。 Then, the play of the meshing portion is supplied adhesive B (. Indicated by the thick line in FIG. 5), and a threaded portion 3 and screwed tube portion 45 is adhered by the adhesive B.

点灯回路51は、光源21の発光素子24を発光させるためのもので、図2に示すように回路基板52に各種の回路部品53を実装してユニット化されている。 Lighting circuit 51 is for causing the light emitting elements 24 of the light source 21, it is unitized by mounting various circuit components 53 on the circuit board 52 as shown in FIG. この点灯回路51は、光源21に電気的に接続するための2本の絶縁被覆電線(図示しない)を有している。 The lighting circuit 51 includes a two insulated wire for electrically connecting the light source 21 (not shown). 又、回路基板52には、光源21のランドに一端が接続されて、電線通し部27、逃げ部30a又は30b、通線孔14、及び後述する電線通孔56を通って第1の外郭部材2内に引き出された他の2本の絶縁被覆電線(図示しない)の他端が接続されている。 Further, the circuit board 52, one end to the land of the light source 21 is connected, the first outer member through wire insertion portion 27, the relief portion 30a or 30b, Tsusen'ana 14, and the wire hole 56 to be described later the other end of the drawn in 2 other two insulation coated wire (not shown) is connected.

第1の外郭部材2内には絶縁部材55が収容されている。 The first outer member 2 is housed an insulating member 55. 絶縁部材55は合成樹脂例えばポリブチレンテレフタレート等で成形されている。 Insulating member 55 is molded of a synthetic resin such as polybutylene terephthalate. この絶縁部材55の内側に点灯回路51がその回路基板52を水平状に配置した姿勢で収容されている。 The inside lighting circuit 51 of the insulating member 55 is accommodated in a posture in which place the circuit board 52 in a horizontal state. このような点灯回路51の収容により、点灯回路51を配置するスペースを第1の外郭部材2の軸方向に並べて確保する必要がなくなるので、ランプ1の軸方向長さをコンパクトにできる。 The accommodation of such lighting circuit 51, since the space for arranging the lighting circuit 51 is not necessary to secure side by side in a first axial direction of the outer member 2 can be the axial length of the lamp 1 compact.

絶縁部材55は点灯回路51と金属製の第1の外郭部材2との間の電気的及び熱的な絶縁を図っている。 Insulating member 55 is working to electrical and thermal insulation between the lighting circuit 51 and the metal of the first outer member 2. 光源取付け部材12の裏側に嵌合される絶縁部材55の壁部55aの二箇所に図3に示す電線通孔56が開けられている。 Electric wire hole 56 shown in FIG. 3 are opened at two positions of the wall portion 55a of the insulating member 55 fitted on the back side of the light source mounting member 12. 図2中符号57は複数又は環状の回路基板受け用突出部を示し、符合58は斜状面を有した複数の動き止め突起を示していて、これらは絶縁部材55に一体形成されている。 2, reference numeral 57 denotes a protrusion for receiving the circuit board of the plurality or cyclic, reference numeral 58 is it shows multiple detent projection having a slant surface, which are formed integrally with the insulating member 55. 回路基板52は、動き止め突起58を乗り越えて絶縁部材55に収容されることにより、これら動き止め突起58と突出部57との間に配置されている。 Circuit board 52, by overcoming the detent protrusions 58 are housed in the insulating member 55 is disposed between these detent projection 58 and the projection 57. これにより、絶縁部材55内の所定位置に配置された点灯回路51は、その動揺を抑制された状態に保持されている。 Accordingly, the lighting circuit 51 disposed at a predetermined position in the insulating member 55 is held in a state of being suppressed its upset.

点灯回路51に電源を供給する口金61は、図1に示すように第1の外郭部材2の他端の開口端部2b側に配設されている。 Mouthpiece 61 for supplying power to the lighting circuit 51 is disposed in the first open end 2b of the other end of the outer member 2 as shown in FIG. 口金61には例えばE17型のものが使用されている。 Being used those for example E17 type to the base 61. この口金61は、口金要素62と、この口金要素62に固定された連結部材63とを有している。 The mouthpiece 61 has a mouthpiece element 62, and a connecting member 63 fixed to the cap element 62. 口金要素62は、その周部に螺旋溝を有していて、図示しないランプソケットに着脱自在にねじ込まれるようになっている。 Mouthpiece element 62, it has a helical groove in its peripheral portion is adapted to be screwed detachably to the lamp socket (not shown). ランプ1は図示しないランプソケットに対して通常図1に示すように口金61を上向きにした姿勢で取付けられる。 Lamp 1 is mounted in a posture in which the mouthpiece 61 as shown in the normal view 1 upward against the lamp socket (not shown). 連結部材63は、合成樹脂例えばポリブチレンテレフタレートなどの絶縁材からなり、開口端部2bに接続されている。 Connecting member 63 is made of an insulating material such as a synthetic resin such as polybutylene terephthalate, and is connected to the open end 2b. この連結部材63は、口金要素62と第1の外郭部材2との間に介在してこれらの連結を担っているとともに、口金要素62と第1の外郭部材2との間を電気的かつ熱的に絶縁している。 The connecting member 63, together are responsible for connecting these interposed between the mouthpiece element 62 and the first outer member 2, electrically and thermally between the die element 62 and the first outer member 2 It is insulated manner.

ランプ1は例えば以下の手順で組立てられる。 Lamp 1 is assembled by the following procedure for example.

予め組立てられた光源アセンブリ11を用意し、それから引き出された絶縁被覆電線を絶縁部材55の壁部55aに通した後、これらの電線を点灯回路51の回路基板52に接続する。 Providing a light source assembly 11 assembled in advance, after the insulated wire drawn out therefrom through the wall portion 55a of the insulating member 55, connecting these wires to the circuit board 52 of the lighting circuit 51. 次に、点灯回路51を絶縁部材55の内側に挿入して、その回路基板52を動き止め突起58と突出部57との間に保持する。 Then, by inserting the lighting circuit 51 to the inside of the insulating member 55 is held between the stopper projection 58 moves the circuit board 52 and the protrusion 57.

この後、第1の外郭部材2内に、その大径な一端開口を通して絶縁部材55を収容する。 Thereafter, the first outer member 2, for accommodating the insulating member 55 through the large-diameter opening at one end. この時、回路基板52から引き出された絶縁被覆電線は第1の外郭部材2の小径な他端開口より引き出して置く。 At this time, insulated wire drawn out from the circuit board 52 is put drawers than the small-diameter opening at the other end of the first outer member 2. 又、以上の絶縁部材55の収容に伴って、光源取付け部材12の周部12a、具体的にはその周壁12bの先端部を、第1の外郭部材2の補助溝4aに挿入させる。 Also, with the housing above the insulating member 55, the peripheral portion 12a of the light source attachment member 12, specifically the front end portion of the peripheral wall 12b, is inserted into the first auxiliary grooves 4a of the outer member 2. この時、環状段部4から突出された位置決め部6に周壁12bに形成された回り止め受け部16を夫々嵌合させて、光源アセンブリ11を第1の外郭部材2に対して不用意に回らないように位置決めする。 At this time, the detent receiving portion 16 formed in the peripheral wall 12b in the positioning unit 6 that protrudes from the annular stepped portion 4 by respective fitted, from turning inadvertently the light source assembly 11 relative to the first outer member 2 there is no way to position.

次に、この状態で、第2の外郭部材41を第1の外郭部材2の大径な一端開口側に被せるように配置し、その内側のカバー部42内に光源21、伝熱シート30、及び光源カバー32を納める。 Next, in this state, the second and outer member 41 disposed so as to cover the first large-diameter end opening side of the outer member 2, the light source 21 on the inner side of the cover portion 42, the heat transfer sheet 30, and pay light source cover 32. この後、第2の外郭部材41を手で回転させて、その螺合筒部45を第1の外郭部材2のねじ部3にねじ込んで、第2の外郭部材41と第1の外郭部材2とを連結する。 Thereafter, by rotating the second outer member 41 by hand, by screwing the threaded tubular portion 45 on the first threaded portion 3 of the outer member 2, and the second outer member 41 first outer member 2 to connect the door.

それに伴い、ねじ込みの終期において押え部44が、光源取付け部材12の周部12aの表面を押して、この表面に密接されるとともに、周壁12bを受熱面5に押付けてこれらを密接させた状態に、光源取付け部材12の周部12aが第2の外郭部材41の押え部44と第1の外郭部材2の受熱面5との間に挟着される。 Along with this, the pressing portion 44 in the end of screwing, press the surface of the peripheral portion 12a of the light source mounting member 12, while being closely on the surface, the state of being in close contact with them by pressing the peripheral wall 12b to the heat receiving surface 5, peripheral portion 12a of the light source mounting member 12 is sandwiched between the pressing portion 44 and the first heat receiving face 5 of the outer member 2 of the second outer member 41. この場合、環状段部4と螺合筒部45との間にスペースSが形成されるので、受熱面5への螺合筒部45が押し当たる以前に、螺合筒部45がストッパとなってしまうことがない。 In this case, since the space S is formed between the annular step portion 4 and threaded cylindrical portion 45, before the threaded tubular portion 45 of the heat receiving surface 5 is pressed against, threaded tubular portion 45 is a stopper never would. このため、第2の外郭部材41のねじ込みが必要十分に行われて、前記密接状態を確実に得ることができる。 Accordingly, screwing is performed necessary and sufficient of the second outer member 41, it is possible to reliably obtain the close contact state.

更に、第2の外郭部材41のねじ込みが完了した状態では、図2に示すように内側のカバー部42の引掛けフランジ42aがホルダー33の先端面に引っ掛かり、光源カバー32を光源取付け部材12に向けて押付ける。 Further, in the state in which screwing of the second shell member 41 has been completed, hook flange 42a of the inner cover portion 42 as shown in FIG. 2 is caught by the distal end surface of the holder 33, the light source cover 32 to the light source mounting member 12 directed pressing. これにより、光源21のベース22をより確実に伝熱シート30を介して光源取付け部材12の表面に密接させることができる。 Thus, it is possible to close the surface of the light source mounting member 12 via a more reliable heat transfer sheet 30 of the base 22 of the light source 21.

前記ねじ込み終期には、押え部44により光源取付け部材12に回転力が作用する。 The threaded end has a rotational force is applied to the light source mounting member 12 by the pressing portion 44. しかし、それによる光源アセンブリ11の回転は、互いに嵌合された位置決め部6と回り止め受け部16とをストッパとして阻止される。 But due to the rotation of the light source assembly 11 is prevented as a stopper and a receiving unit 16 stops rotation and the positioning part 6 is fitted to each other. このため、光源アセンブリ11が回転して、光源21と点灯回路51とに渡る絶縁被覆電線が捻られて、この電線の切断や、絶縁被覆電線の接続部から電線が引き剥がされる恐れがない。 Therefore, the light source assembly 11 is rotated, is twisted is insulated wire over a light source 21 and the lighting circuit 51, the cutting and the electric wire, there is no possibility that the electric wire is peeled off from the connection portion of the insulated wire.

又、以上のねじ込みは、予め未硬化の接着剤Bを螺合筒部45又はねじ部3の少なくとも一方に塗布してから実施される。 Also, more screwing is carried out adhesive B pre uncured after coating on at least one engagement cylinder part 45 or the screw portion 3. それにより、接着剤Bは螺合筒部45とねじ部3との噛み合い部に充填されて、これらを接着する。 Thereby, the adhesive B is filled in the meshing portion between the threaded cylindrical portion 45 and the threaded portion 3, to adhere them. この時、接着剤Bの余剰となった分は、環状段部4と螺合筒部45との間に形成されたスペースSに収められる。 In this case, the amount that was the excess adhesive B, is accommodated in the space S formed between the annular stepped portion 4 and the threaded cylinder portion 45. このため、余剰の接着剤Bが第1の外郭部材2と第2の外郭部材41の合わせ目から外面に漏れてしまうことを抑制できる。 Therefore, it is possible to suppress the excess adhesive B leaks to the outer surface of the joint of the first outer member 2 and the second outer member 41. そして、この接着により、組立て後にランプ1を回転操作して図示しないランプソケットに着脱操作する際に、第1の外郭部材2に対する第2の外郭部材41のねじ込みが緩んでしまう恐れがなくなるので、後述の熱伝導による放熱性能を維持させることができる。 By this bonding, the mounting and demounting operation the lamp socket (not shown) of the lamp 1 by rotating operation after assembly, the possibility of screwing loosen the second outer member 41 with respect to the first outer member 2 is eliminated, it is possible to maintain the heat dissipation performance due to heat conduction will be described later.

最後に、第1の外郭部材2から引き出されている絶縁被覆電線を、口金61の口金要素の所定位置に夫々半田付けした後に、口金61を第1の外郭部材2の小径な開口端部に取付ける。 Finally, the insulated wire being drawn from the first outer member 2, after each soldered to a predetermined position of the base element of the mouthpiece 61, the mouthpiece 61 to a smaller diameter open end of the first outer member 2 attached. それにより、ランプ1の組立てが完了する。 Thereby, the assembly of the lamp 1 is completed.

こうした組立てによれば、加熱炉や圧入用の機器を用いることもなく、又、二度の接着を必要とすることもなく、既述のように第1の外郭部材2の一端開口部側に同じ方向から光源取付け部材12を備えた光源アセンブリ11及び第2の外郭部材41を順次組付けることで、ランプ1を簡単に組立てて、このランプ1に光源21から第1の外郭部材2及び第2の外郭部材41に至る放熱のための熱伝導経路を作ることができる。 According to this assembly, without the use of equipment of a heating furnace or the press-fitting, also, without the need for adhesive twice, the first end opening side of the outer member 2 as described above by assembling the light source assembly 11 and the second outer member 41 having a light source mounting member 12 from the same direction sequentially, the lamp 1 easily assembled, outer member 2 and the light source 21 first to the lamp 1 heat conduction path for heat dissipation leading to the second outer member 41 can be made. そして、既述のように口金61とは反対側の開口部側から光源アセンブリ11を組込んだので、ランプ1の外郭は図1及び図2に示すように口金61側口ほど小径とできる。 Then, the mouthpiece 61 as described above since incorporating the light source assembly 11 from the opening side of the opposite, outer shell of the lamp 1 can be smaller in diameter as cap 61 side mouth as shown in FIGS. このため、照明器具へのランプ1の取付けにおいて、ランプ1の口金まわりの外郭部分が邪魔になることが抑制され、ランプ1の器具適合率を良くすることができる。 Therefore, in mounting the lamp 1 to the lighting fixture, it is suppressed that the outer portion around the mouthpiece of the lamp 1 in the way, it is possible to improve the device fit factor of the lamp 1.

ランプ1の点灯時に、LEDからなる発光素子24から発した光は、レンズ34により例えばスポット光として制御されて、下方に投光される。 At the time of lighting the lamp 1, light emitted from the light-emitting element 24 composed of LED is controlled by a lens 34, for example, as a spot light, is projected downward. この点灯時、LEDからなる発光素子24は熱を発生する。 During the lighting, the light emitting element 24 composed of LED generates heat. この熱は、光源21のベース22から伝熱シート30を介して光源取付け部材12に効率よく伝導された後、光源取付け部材12からランプ1の外郭をなす第1の外郭部材2と第2の外郭部材41とに伝導されて、これらの表面から大気中に放出される。 The heat from the base 22 of the light source 21 after being efficiently conducted to the light source mounting member 12 via the heat transfer sheet 30, the light source mounting the member 12 first forming the outer shell of the lamp 1 outer member 2 and the second is conducted to the outer member 41, it is released into the atmosphere from these surfaces.

すなわち、発光素子24が発生して金属製の光源取付け部材12に伝導された熱は、光源取付け部材12の周部12aから第1の外郭部材2の受熱面5に伝導されて、この第1の外郭部材2の表面から大気中に放出される。 That is, the heat-emitting element 24 is conducted to the light source mounting member 12 made of metal is generated from the peripheral portion 12a of the light source mounting member 12 is conducted to the heat receiving surface 5 of the first shell member 2, the first It is released into the atmosphere from the surface of the outer member 2. この場合、周部12aが有した周壁12bの先端面が受熱面5に密接されているので、光源取付け部材12から第1の外郭部材2への熱伝導は良好である。 In this case, since the distal end surface of the peripheral wall 12b having the peripheral portion 12a is in close contact with the heat receiving surface 5, the heat conduction from the light source mounting member 12 to the first outer member 2 is good. しかも、周壁12bの先端部はそれが嵌り込んでいる補助溝4aの内周面に接触するよう設けられているので、周壁12bから第1の外郭部材2への伝熱面積が大きく、この点でも第1の外郭部材2への熱伝導が良好である。 Moreover, the tip portion of the peripheral wall 12b is provided so as to contact with the inner peripheral surface of the auxiliary groove 4a to which it is fits, large heat transfer area from the peripheral wall 12b to the first outer member 2, this point But heat transfer to the first outer member 2 is good.

これに加えて、第1の外郭部材2の熱が、この第1の外郭部材2のねじ部3と金属製の第2の外郭部材41の螺合筒部45との噛み合い部を通して第2の外郭部材41に伝導される。 In addition, the first outer member 2 heat, the first threaded portion 3 of the outer member 2 of the metal of the second outer member 41 with the threaded tubular portion 45 engaging portion through the second It is conducted to the outer member 41. 更に、この一方で、光源取付け部材12の熱の一部は、光源取付け部材12の少なくとも周部12aの表面に密接された押え部44を通って第2の外郭部材41に伝導される。 Further, in the other hand, some of the heat of the light source mounting member 12, is conducted to the second outer member 41 through the pressing portion 44 in close contact with the surface of at least the peripheral portion 12a of the light source mounting member 12. この第2の外郭部材41は主としてそのカバー部42,43の各表面から大気中に熱を放出する。 Releasing heat into the atmosphere from the second outer member 41 is primarily the surface of the cover portion 42, 43.

このように光源21を囲むカバー部42,43を有した第2の外郭部材41を利用して放熱面積を増やしているので、放熱性能が向上されて、発光素子24の温度上昇を効果的に抑制できる。 Since the by using the second outer member 41 having a cover portion 43 which surrounds the light source 21 to increase the heat dissipation area, heat radiation performance is improved, effectively the temperature rise of the light emitting element 24 It can be suppressed. したがって、光源21の発光素子24の温度が異常に上昇することが抑制されて、発光素子24の発光効率の低下と寿命の低下とを抑制できる。 Accordingly, it is suppressed that the temperature of the light emitting element 24 of the light source 21 is abnormally increased can be suppressed and reduction of drop and lifetime of the light-emitting efficiency of the light-emitting element 24.

本発明の一実施形態に係るランプを示す斜視図。 Perspective view of a lamp according to an embodiment of the present invention. 図1のランプを示す断面図。 Sectional view showing a lamp of FIG. 図1のランプが備える第1、第2の外郭部材と、絶縁部材と、光源取付け部材とを分解して示す斜視図。 First and second outer members, and the insulating member, exploded perspective view showing a light source mounting member provided in the lamp 1. 図1のランプが備える光源取付け部材と、伝熱シートと、光源とを分解して示す斜視図。 Exploded perspective view showing a light source mounting member lamp comprises of Figure 1, the heat transfer sheet, and a light source. 図2中F5部を拡大して示す断面図。 Enlarged cross-sectional view showing the F5 parts in FIG. 図1のランプが備える光源カバーを分解して示す斜視図。 It exploded perspective view showing the light source cover the lamp comprises of FIG.

符号の説明 DESCRIPTION OF SYMBOLS

1…ランプ、2…第1の外郭部材、3…ねじ部、4…環状段部、5…受熱面、11…光源アセンブリ、12…光源取付け部材、12a…周部、12b…周壁、21…光源、24…発光素子、32…光源カバー、41…第2の外郭部材、42,43…カバー部、44…押え部、45…螺合筒部、51…点灯回路、61…口金、B…接着剤、S…スペース 1 ... lamp, 2 ... first outer member, 3 ... screw part, 4 ... annular step, 5 ... heat receiving surface, 11 ... light source assembly, 12 ... light source mounting member, 12a ... peripheral portion, 12b ... peripheral wall, 21 ... light source, 24 ... light emitting element, 32 ... light source cover, 41 ... second outer member, 42, 43 ... cover, 44 ... pressing portion, 45 ... screwed tube portion, 51 ... lighting circuit 61 ... ferrule, B ... adhesive, S ... space

Claims (2)

  1. 一端が開口され、この開口の端部に受熱面及びこの受熱面を囲むねじ部が形成され、かつ、内部に点灯回路が収容された金属製の第1の外郭部材と; One end is opened, the heat receiving surface at an end portion of the opening and the screw part surrounding the heat receiving surface is formed, and a first outer member made of metal internal to the lighting circuit is accommodated;
    この外郭部材の他端部側に配設された口金と; And it disposed a mouthpiece at the other end side of the outer member;
    前記受熱面に接する周部を有して前記一端開口を閉じて配設された金属製の光源取付け部材と; Wherein a has a circumferential portion in contact with the heat receiving surface said one open end arranged to close a metallic light source mounting member;
    発光素子を有して前記光源取付け部材の表面にこの光源取付け部材に熱伝導するように装着された光源と; A light emitting element and the mounted light source to heat conduction to the light source mounting member to the surface of the light source mounting member;
    この光源を囲む筒状のカバー部、前記光源の周囲に位置された前記光源取付け部材の周部表面に接する押え部、及び前記ねじ部にねじ込まれる螺合筒部を有して、前記周部を前記受熱面との間に挟みつけて前記第1の外郭部材に連結された金属製の第2の外郭部材と; Cylindrical cover portion surrounding the light source, the pressing portion in contact with the periphery surface of the light source mounting member which is located around the light source, and a threaded cylindrical portion which is screwed into the threaded portion, the peripheral portion and a second outer member to pinch put in a metal coupled to the first outer member between the heat receiving face;
    を具備したことを特徴とするランプ。 Lamp, characterized by comprising a.
  2. 前記周部の高さを前記螺合筒部の高さより大きくして、前記第1の外郭部材の一端開口端部と前記螺合筒部の先端との間に、前記ねじ部と螺合筒部との噛み合い部に連通するスペースを形成するとともに、前記ねじ部と螺合筒部とを接着剤により接着したことを特徴とする請求項1に記載のランプ。 The height of the peripheral portion is greater than the height of the screwed cylinder portion, between the tip of said one end open end screwed tubular portion of the first outer member, the threaded portion screwed tube to form a space that communicates with the engagement portion of the parts, the lamp according to claim 1, characterized in that by means of an adhesive and said threaded portion and screwed tube portion.
JP2006007670A 2006-01-16 2006-01-16 Lamp Pending JP2007188832A (en)

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