JP2007207576A - Led lamp - Google Patents

Led lamp Download PDF

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Publication number
JP2007207576A
JP2007207576A JP2006024972A JP2006024972A JP2007207576A JP 2007207576 A JP2007207576 A JP 2007207576A JP 2006024972 A JP2006024972 A JP 2006024972A JP 2006024972 A JP2006024972 A JP 2006024972A JP 2007207576 A JP2007207576 A JP 2007207576A
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Prior art keywords
base
packing
protrusion
translucent cap
led lamp
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JP2006024972A
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Japanese (ja)
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Akiyuki Shima
顕侑 島
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Jefcom Co Ltd
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Jefcom Co Ltd
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Priority to JP2006024972A priority Critical patent/JP2007207576A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-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
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit 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
    • F21K9/232—Retrofit 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 an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED lamp very excellent in waterproofing property, by airtightly sealing a gap between a base and a translucent cap. <P>SOLUTION: A peripheral groove 9 is formed on an upper end periphery of the cylinder shaped base 1, a ring-shaped packing 10 is housed in the peripheral groove 9, a ring-shaped first protrusion wire 11a made so as to enter into the peripheral groove 9 of the base 1 is formed at lower end periphery of the translucent cap 3. The packing 10 and the first protrusion 11a are made to tightly contact with each other by pressing the first protrusion 11a of the translucent cap 3 against the packing 10 housed in the groove of the translucent cap 3 so as to crushed packing 10. Further, an end face 3a of the translucent cap 3 is made to adhere to an end face of the base 1. By the above, the translucent cap 3 is fixed to the base 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、道路工事現場、建築作業現場等の標識、店舗、駐車場等の看板、遊園地等の遊技施設の電飾などに使用されるＬＥＤランプに関するものである。   The present invention relates to an LED lamp used for signs on road construction sites, building work sites, etc., signs for stores, parking lots, etc., and for lighting of amusement facilities such as amusement parks.

従来、この種のＬＥＤランプとしては、例えば図１１に示したように、軟質合成樹脂材よりなるベース２１、プリント配線基板２２、硬質合成樹脂材よりなる光拡散性キャップ２３、電線コード２４ａ、２４ｂ、ＬＥＤ発光体２５などから成るものが存在する。   Conventionally, as this type of LED lamp, for example, as shown in FIG. 11, a base 21 made of a soft synthetic resin material, a printed wiring board 22, a light diffusing cap 23 made of a hard synthetic resin material, and electric wire cords 24a and 24b. And LED light emitters 25 and the like.

このＬＥＤランプは、ベース２１の内部にプリント配線基板２２を定着保持するには、プリント配線基板２２に電源コード２４ａ、２４ｂを半田付け接続し、これをベース２１の成形金型にセットし、樹脂を注入してベース２１を成形することで、プリント配線基板２２を一体に収容保持している。   In this LED lamp, in order to fix and hold the printed wiring board 22 inside the base 21, power cords 24a and 24b are soldered and connected to the printed wiring board 22, and this is set in a molding die of the base 21, and resin The base 21 is formed by injecting the resin, and the printed wiring board 22 is integrally held and held.

さらに、このＬＥＤランプは、ベース２１の上方に突出するキャップ挿入口２１ａを、上端側の内径を光拡散性キャップ２３の外径より僅かに小さく形成し、キャップを挿入装着する時、上端開口部を拡開しながら挿入し、挿入した後は光拡散性キャップ２３の外周面に密着させて防水性を発揮するように構成している（特許文献１）。
特開２００３−１０９４０３号公報（第３頁、図１） Further, in this LED lamp, the cap insertion opening 21a protruding above the base 21 is formed so that the inner diameter on the upper end side is slightly smaller than the outer diameter of the light diffusing cap 23, and when the cap is inserted and mounted, Is inserted while expanding, and after insertion, it is configured to be in close contact with the outer peripheral surface of the light diffusing cap 23 to exhibit waterproofness (Patent Document 1).
Japanese Patent Laying-Open No. 2003-109403 (page 3, FIG. 1)

上記従来のＬＥＤランプでは、軟質合成樹脂材よりなるベース２１の弾力性を利用して、そのベース２１の上方に突出するキャップ挿入口２１ａを、硬質合成樹脂材よりなる光拡散性キャップ２３の外周面に密着させて防水性を発揮するようにしているが、キャップ挿入口２１ａと光拡散性キャップ２３の外周面の接触による密着度のみに頼っているので、これによる密閉は完全とはいえず、防水性に劣るという問題点を有していた。   In the conventional LED lamp, by utilizing the elasticity of the base 21 made of a soft synthetic resin material, the cap insertion port 21a protruding above the base 21 is formed on the outer periphery of the light diffusing cap 23 made of a hard synthetic resin material. Although it is made to adhere to the surface to exhibit waterproofness, since it depends only on the degree of adhesion due to the contact between the cap insertion port 21a and the outer peripheral surface of the light diffusing cap 23, the sealing by this is not perfect. It had the problem of being inferior in waterproofness.

また、上記従来のＬＥＤランプでは、ベース２１と電源コード２４ａ、２４ｂとを、ベース２１の樹脂成形時に密着させたものとしているが、その樹脂成形時に特に工夫を凝らしていないので、これによる密閉は完全とはいえず、防水性に劣るという問題点を有していた。   In the conventional LED lamp, the base 21 and the power cords 24a and 24b are in close contact with the base 21 when the resin is molded. Although it was not perfect, it had the problem of being inferior in waterproofness.

そこで、この発明は、上記従来の問題点を解決することをその課題としており、ベースとキャップとの密閉を完全なものとして、防水性に非常に優れたＬＥＤランプを提供することを目的としてなされたものである。   Therefore, the present invention has been made to solve the above-mentioned conventional problems, and is intended to provide an LED lamp having excellent waterproofness with a complete sealing between the base and the cap. It is a thing.

さらに、この発明は、ベースと電源コード等の電源導入部との密閉をも完全なものとして、防水性に非常に優れたＬＥＤランプを提供することを目的としてなされたものである。   Furthermore, the present invention has been made for the purpose of providing an LED lamp that is extremely excellent in waterproofness by completely sealing the base and a power supply introduction portion such as a power cord.

そのため、この発明のＬＥＤランプは、筒状体としたベース１の上端周囲に周溝９を形成し、この周溝９にリング状のパッキン１０を収容し、透光性キャップ３の下端周囲に前記ベース１の周溝９に入り込むようにしたリング状の第一突条１１ａを形成し、前記ベース１の周溝９に収容されたパッキン１０に、透光性キャップ３の第一突条１１ａを押圧させて、このパッキン１０を押し潰すようにして、パッキン１０と第一突条１１ａを密着させ、さらに前記透光性キャップ３の端面３ａを、前記ベース１の端面１ｂに接着させることにより、ベース１に透光性キャップ３を固着したものとしている。   Therefore, in the LED lamp of the present invention, a circumferential groove 9 is formed around the upper end of the base 1 that is a cylindrical body, and a ring-shaped packing 10 is accommodated in the circumferential groove 9, and around the lower end of the translucent cap 3. A ring-shaped first ridge 11 a is formed so as to enter the circumferential groove 9 of the base 1, and the first ridge 11 a of the translucent cap 3 is formed on the packing 10 accommodated in the circumferential groove 9 of the base 1. The packing 10 is crushed so that the packing 10 and the first protrusion 11a are brought into close contact with each other, and the end surface 3a of the translucent cap 3 is adhered to the end surface 1b of the base 1. The translucent cap 3 is fixed to the base 1.

さらに、この発明のＬＥＤランプは、透光性キャップ３の下端周囲に周溝９を形成し、この周溝９にリング状のパッキン１０を収容し、筒状体としたベース１の上端周囲に前記透光性キャップ３の周溝９に入り込むようにしたリング状の第一突条１１ａを形成し、前記透光性キャップ３の周溝９に収容されたパッキン１０に、ベース１の第一突条１１ａを押圧させて、このパッキン１０を押し潰すようにして、パッキン１０と第一突条１１ａを密着させ、さらに前記透光性キャップ３の端面３ａを、前記ベース１の端面１ｂに接着させることにより、ベース１に透光性キャップ３を固着したものとしている。   Further, in the LED lamp of the present invention, a circumferential groove 9 is formed around the lower end of the translucent cap 3, and a ring-shaped packing 10 is accommodated in the circumferential groove 9, and around the upper end of the base 1 formed as a cylindrical body. A ring-shaped first protrusion 11 a is formed so as to enter the circumferential groove 9 of the translucent cap 3, and the first of the base 1 is attached to the packing 10 accommodated in the circumferential groove 9 of the translucent cap 3. The ridge 11a is pressed to crush the packing 10 so that the packing 10 and the first ridge 11a are in close contact with each other, and the end surface 3a of the translucent cap 3 is bonded to the end surface 1b of the base 1. By doing so, the translucent cap 3 is fixed to the base 1.

また、この発明のＬＥＤランプは、前記透光性キャップ３の端面３ａに、前記第一突条１１ａより小径としたリング状の第二突条１１ｂを形成し、この第二突条１１ｂを溶融させて、ベース１の端面１ｂに溶着することにより、前記透光性キャップ３の端面３ａをベース１の端面１ｂに接着させたものとしている。   In the LED lamp of the present invention, a ring-shaped second ridge 11b having a diameter smaller than that of the first ridge 11a is formed on the end surface 3a of the translucent cap 3, and the second ridge 11b is melted. The end surface 3a of the translucent cap 3 is bonded to the end surface 1b of the base 1 by welding to the end surface 1b of the base 1.

さらに、この発明のＬＥＤランプは、前記ベース１の端面１ｂに、前記第一突条１１ａより小径としたリング状の第二突条１１ｂを形成し、この第二突条１１ｂを溶融させて、透光性キャップ３の端面３ａに溶着することにより、前記透光性キャップ３の端面３ａをベース１の端面１ｂに接着させたものとしている。   Further, in the LED lamp of the present invention, a ring-shaped second protrusion 11b having a diameter smaller than that of the first protrusion 11a is formed on the end surface 1b of the base 1, and the second protrusion 11b is melted. The end surface 3 a of the translucent cap 3 is bonded to the end surface 1 b of the base 1 by welding to the end surface 3 a of the translucent cap 3.

また、この発明のＬＥＤランプは、前記パッキン１０の縦断面形状を、上部を下部より窄めた形状にし、このパッキン１０が、透光性キャップ３の第一突条１１ａに押圧され、押し潰されてベース１の周溝９に密着し易くなると共に、この第一突条１１ａに密着し易くなるものとしている。   Further, in the LED lamp of the present invention, the packing 10 has a vertical cross-sectional shape in which the upper part is constricted from the lower part, and the packing 10 is pressed against the first protrusion 11a of the translucent cap 3 to be crushed. Thus, it is easy to be in close contact with the circumferential groove 9 of the base 1 and is easy to be in close contact with the first protrusion 11a.

さらに、この発明のＬＥＤランプは、前記パッキン１０の縦断面形状を、下部を上部より窄めた形状にし、このパッキン１０が、ベース１の第一突条１１ａに押圧され、押し潰されて透光性キャップ３の周溝９に密着し易くなると共に、この第一突条１１ａに密着し易くなるものとしている。   Further, in the LED lamp of the present invention, the vertical cross-sectional shape of the packing 10 is formed so that the lower part is narrowed from the upper part, and the packing 10 is pressed by the first protrusion 11a of the base 1 and is crushed and transparent. In addition to being easily in close contact with the circumferential groove 9 of the optical cap 3, the close contact with the first protrusion 11a is facilitated.

また、この発明のＬＥＤランプは、前記ベース１を樹脂成形して、収容空間６を形成すると共に、底部１ａに凹部１２を形成し、電源導入部とする二本の金属棒５ａ、５ｂの上端が前記収容空間６に突き出るようにし、前記金属棒５ａ、５ｂの下端が前記凹部１２に突き出るようにし、さらに前記凹部１２に弾性樹脂１３を流し込み、金属棒５ａ、５ｂの突き出ている根元部を前記弾性樹脂１３で固めたものとしている。   The LED lamp of the present invention is formed by resin-molding the base 1 to form the accommodation space 6, and the recess 12 is formed in the bottom 1a, so that the upper ends of the two metal rods 5a and 5b serving as power supply introduction portions. Projecting into the accommodating space 6, the lower ends of the metal rods 5a and 5b projecting into the recess 12, and the elastic resin 13 is poured into the recess 12 so that the protruding bases of the metal rods 5a and 5b are formed. It is assumed that it is hardened with the elastic resin 13.

この発明のＬＥＤランプは、以上に述べたように構成されているので、ベースと透光性キャップとの密閉が完全なものとなり、防水性に非常に優れたものとなった。   Since the LED lamp of the present invention is configured as described above, the sealing between the base and the translucent cap is complete, and the waterproof property is extremely excellent.

さらに、この発明のＬＥＤランプは、ベースと電源コード等の電源導入部との密閉も完全なものとなり、防水性に非常に優れたものとなった。   Furthermore, the LED lamp of the present invention is completely sealed between the base and the power supply introduction portion such as the power cord, and is extremely excellent in waterproofness.

以下、この発明のＬＥＤランプを実施するための最良の形態を、図面に基づいて詳細に説明する。   Hereinafter, the best mode for carrying out the LED lamp of the present invention will be described in detail with reference to the drawings.

この発明のＬＥＤランプは、図１、２に示したように、ベース１、プリント配線基板２、透光性キャップ３、ＬＥＤ発光体４、金属棒５ａ、５ｂなどから成る。   As shown in FIGS. 1 and 2, the LED lamp of the present invention comprises a base 1, a printed wiring board 2, a translucent cap 3, an LED light emitter 4, metal bars 5a and 5b, and the like.

ベース１は、硬質合成樹脂材よりなる有底の筒状体としており、内部には収容空間６を有しており、底部１ａの外周にはネジ山を形成した口金７を固着したものとしている。プリント配線基板２は、図示していないがサイリスタやコンデンサなどが搭載されている。透光性キャップ３は、例えば硬質合成樹脂材よりなる略半球体としており、透光性であれば特に限定されることはなく、透明、半透明、乳白色等としたり、しかも光拡散性を有するもの等とすることができる。ＬＥＤ発光体４は、単数または多数個からなるものとし、多数個からなる場合には集合型ＬＥＤ発光体としている。金属棒５ａ、５ｂは、電源導入部としており、それぞれの外周面にきざみ目８を付けたものとしている。なお、前記ベース１の底部１ａに固着した口金７は、図示したものでは外周にネジ山を形成したものとしているが、さまざまなタイプの口金とすることができるのは言うまでもない。   The base 1 is a bottomed cylindrical body made of a hard synthetic resin material, has a housing space 6 inside, and a base 7 having a thread formed on the outer periphery of the bottom 1a. . Although not shown, the printed wiring board 2 is mounted with a thyristor, a capacitor, and the like. The translucent cap 3 is, for example, a substantially hemispherical body made of a hard synthetic resin material, and is not particularly limited as long as it is translucent. The translucent cap 3 is transparent, translucent, milky white, etc. And so on. The LED light emitter 4 is composed of a single LED or a large number of LED light emitters. The metal rods 5a and 5b serve as power supply introduction portions, and are provided with notches 8 on the outer peripheral surfaces thereof. The base 7 fixed to the bottom 1a of the base 1 has a thread formed on the outer periphery in the illustrated case, but it goes without saying that various types of base can be used.

ベース１には、収容空間６にプリント配線基板２が収容されており、このプリント配線基板２がベース１に固着され、収容空間６から突き出すようにしてＬＥＤ発光体４がこのベース１に固着されている。そして、このＬＥＤ発光体４を覆うようにして、ベース１に透光性キャップ３が、以下のようにして固着されている。   The printed wiring board 2 is accommodated in the accommodation space 6 in the base 1, and the printed wiring board 2 is fixed to the base 1, and the LED light emitter 4 is fixed to the base 1 so as to protrude from the accommodation space 6. ing. And the translucent cap 3 is being fixed to the base 1 as follows so that this LED light-emitting body 4 may be covered.

先ず、図３、４に示したように、ベース１の筒状体の上端周囲には周溝９を形成したものとし、この周溝９にリング状のパッキン１０を収容し、透光性キャップ３の略半球の下端周囲には前記ベース１の周溝９に入り込むようにしたリング状の第一突条１１ａを形成したものとする。そして、図５、６に示したように、ベース１の周溝９に収容されたパッキン１０に、透光性キャップ３の第一突条１１ａを押圧させて、このパッキン１０を押し潰すようにして、パッキン１０と第一突条１１ａを密着させ、さらに前記透光性キャップ３の端面３ａを、前記ベース１の端面１ｂに接着させることにより、ベース１に透光性キャップ３を固着したものとしている。   First, as shown in FIGS. 3 and 4, it is assumed that a circumferential groove 9 is formed around the upper end of the cylindrical body of the base 1, and a ring-shaped packing 10 is accommodated in the circumferential groove 9, so that a translucent cap is formed. It is assumed that a ring-shaped first ridge 11a is formed around the lower end of the substantially hemisphere 3 so as to enter the circumferential groove 9 of the base 1. Then, as shown in FIGS. 5 and 6, the packing 10 accommodated in the circumferential groove 9 of the base 1 is pressed against the first protrusion 11 a of the translucent cap 3 so that the packing 10 is crushed. Then, the packing 10 and the first protrusion 11a are brought into close contact, and the end surface 3a of the translucent cap 3 is adhered to the end surface 1b of the base 1 so that the translucent cap 3 is fixed to the base 1. It is said.

また、図には示していないが、透光性キャップ３の略半球体の下端周囲には周溝９を形成したものとし、この周溝９にリング状のパッキン１０を収容し、ベース１の筒状体の上端周囲には前記透光性キャップ３の周溝９に入り込むようにしたリング状の第一突条１１ａを形成したものとする。そして、透光性キャップ３の周溝９に収容されたパッキン１０に、ベース１の第一突条１１ａを押圧させて、このパッキン１０を押し潰すようにして、パッキン１０と第一突条１１ａを密着させ、さらに前記透光性キャップ３の端面３ａを、前記ベース１の端面１ｂに接着させることにより、ベース１に透光性キャップ３を固着したものとしている。   Although not shown in the figure, it is assumed that a circumferential groove 9 is formed around the lower end of the substantially hemispherical body of the translucent cap 3, and a ring-shaped packing 10 is accommodated in the circumferential groove 9. A ring-shaped first protrusion 11a is formed around the upper end of the cylindrical body so as to enter the circumferential groove 9 of the translucent cap 3. And the packing 10 accommodated in the circumferential groove 9 of the translucent cap 3 is made to press the 1st protrusion 11a of the base 1, and this packing 10 is crushed. And the end face 3a of the translucent cap 3 is adhered to the end face 1b of the base 1 so that the translucent cap 3 is fixed to the base 1.

なお、前記ベース１または透光性キャップ３の周溝９の縦断面形状は、四角形状、角を丸めた四角形状など特に限定しないが、ベース１の周溝９に収容するパッキン１０の縦断面形状は、上部を下部より窄めた形状、すなわち正三角形や二等辺三角形、角を丸めた正三角形や二等辺三角形、等脚台形、角を丸めた等脚台形などとするのが好ましく、透光性キャップ３の周溝９に収容するパッキン１０の縦断面形状は、下部を上部より窄めた形状、すなわち逆正三角形や逆二等辺三角形、角を丸めた逆正三角形や逆二等辺三角形、転倒等脚台形、角を丸めた転倒等脚台形などとするのが好ましい。また、前記ベース１または透光性キャップ３の第一突条１１ａの縦断面形状は、四角形状、角を丸めた四角形状など特に限定しないが、ベース１の第一突条１１ａの縦断面形状は、上部を下部より窄めた形状、すなわち三角形や二等辺三角形、角を丸めた三角形や二等辺三角形、等脚台形、角を丸めた等脚台形などとするのが好ましく、透光性キャップ３の第一突条１１ａの縦断面形状は、下部を上部より窄めた形状、すなわち逆三角形や逆二等辺三角形、角を丸めた逆三角形や逆二等辺三角形、転倒等脚台形、角を丸めた転倒等脚台形などとするのが好ましい。このようにすると、前記ベース１または透光性キャップの周溝９に収容されたパッキン１０が、ベース１または透光性キャップ３の第一突条１１ａを押圧されると、押し潰されてベース１または透光性キャップの周溝９に密着し易くなると共に、この第一突条１１ａに密着し易くなる。   The vertical cross-sectional shape of the peripheral groove 9 of the base 1 or the translucent cap 3 is not particularly limited, such as a square shape or a quadrangular shape with rounded corners, but the vertical cross-section of the packing 10 accommodated in the peripheral groove 9 of the base 1. The shape is preferably a shape in which the upper part is constricted from the lower part, that is, an equilateral triangle or an isosceles triangle, an equilateral triangle or an isosceles triangle with rounded corners, an isosceles trapezoid, an isosceles trapezoid with rounded corners, etc. The longitudinal cross-sectional shape of the packing 10 accommodated in the circumferential groove 9 of the optical cap 3 is a shape in which the lower part is constricted from the upper part, that is, an inverted equilateral triangle, an inverted isosceles triangle, an inverted equilateral triangle or an isosceles triangle with rounded corners. It is preferable to use a trapezoidal shape such as a fall trapezoid or a trapezoidal trapezoid with a rounded corner. Further, the vertical cross-sectional shape of the first protrusion 11a of the base 1 or the translucent cap 3 is not particularly limited, such as a square shape or a quadrangular shape with rounded corners, but the vertical cross-sectional shape of the first protrusion 11a of the base 1 is not limited. It is preferable to have a shape in which the upper part is constricted from the lower part, that is, a triangle, an isosceles triangle, a rounded triangle or an isosceles triangle, an isosceles trapezoid, an isosceles trapezoid with rounded corners, etc. The first cross-sectional shape of the first protrusion 11a is a shape in which the lower part is constricted from the upper part, that is, an inverted triangle, an inverted isosceles triangle, an inverted triangle or an isosceles triangle with rounded corners, an overturned isosceles trapezoid, It is preferable to use a trapezoidal shape such as a rolled fall. In this case, when the packing 10 accommodated in the circumferential groove 9 of the base 1 or the translucent cap is pressed against the first protrusion 11a of the base 1 or the translucent cap 3, the packing 10 is crushed and becomes the base. 1 or the peripheral groove 9 of the translucent cap can be easily adhered, and the first protrusion 11a can be easily adhered.

さらに、前記透光性キャップ３の端面３ａを、前記ベース１の端面１ｂに接着させるには、第一突条１１ａまたは周溝９の内側に位置する透光性キャップ３の端面３ａを、第一突条１１ａまたは周溝９の内側に位置するベース１の端面１ｂに接着剤を用いたり、熱溶着によったり、第一突条１１ａまたは周溝９の外側に位置する透光性キャップ３の端面３ａを、第一突条１１ａまたは周溝９の外側に位置するベース１の端面１ｂに接着剤を用いたり、熱溶着によったりして、接着させるものとしている。熱溶着による場合には、透光性キャップ３の端面３ａに、図５に示したように前記第一突条１１ａより小径としたリング状の第二突条１１ｂを形成したり、図６に示したように前記第一突条１１ａより大径としたリング状の第二突条１１ｂを形成して、この第二突条１１ｂを超音波等で溶融させて、図７、８に示したように、ベース１の端面１ｂに溶着させるものとしている。また、ベース１の端面１ｂに、図には示していないが前記第一突条１１ａより小径としたリング状の第二突条１１ｂを形成したり、前記第一突条１１ａより大径としたリング状の第二突条１１ｂを形成して、この第二突条１１ｂを超音波等で溶融させて、透光性キャップ３の端面３ａに溶着させるものとしている。   Furthermore, in order to adhere the end surface 3a of the translucent cap 3 to the end surface 1b of the base 1, the end surface 3a of the translucent cap 3 located inside the first protrusion 11a or the circumferential groove 9 is The translucent cap 3 located on the outer side of the first protrusion 11a or the circumferential groove 9 by using an adhesive on the end face 1b of the base 1 located on the inner side of the one protrusion 11a or the circumferential groove 9 or by heat welding. The end surface 3a is bonded to the end surface 1b of the base 1 located outside the first protrusion 11a or the circumferential groove 9 by using an adhesive or by heat welding. In the case of thermal welding, a ring-shaped second ridge 11b having a diameter smaller than that of the first ridge 11a as shown in FIG. 5 is formed on the end surface 3a of the translucent cap 3, or FIG. As shown, a ring-shaped second ridge 11b having a diameter larger than that of the first ridge 11a is formed, and the second ridge 11b is melted by ultrasonic waves or the like, as shown in FIGS. Thus, it shall be welded to the end surface 1b of the base 1. Although not shown in the drawing, the ring-shaped second ridge 11b having a diameter smaller than that of the first ridge 11a is formed on the end surface 1b of the base 1, or the diameter is larger than that of the first ridge 11a. A ring-shaped second ridge 11b is formed, and the second ridge 11b is melted by ultrasonic waves or the like and welded to the end surface 3a of the translucent cap 3.

なお、雨水からの防水性を保つ場合には、前記第一突条１１ａの内側に位置するベース１の端面１ｂまたは透光性キャップ３の端面３ａを、周溝９の内側に位置するベース１の端面１ｂまたは透光性キャップ３に接着剤で接着させたり、熱溶着させるほうが良い。なぜなら、大気中の化学物質を含んだ雨が降った場合には、その雨が染み込んで接着剤が溶かされたり、熱溶着が弱められたりするので、前記接着部分が第一突条１１ａの内側、すなわちパッキン１０の内側にある方が、これらの密着部分によって接着部分への前記雨の染み込みが先に防がれるからである。   In order to maintain waterproofness from rainwater, the end surface 1b of the base 1 positioned inside the first protrusion 11a or the end surface 3a of the translucent cap 3 is positioned on the base 1 positioned inside the circumferential groove 9. It is better to adhere to the end face 1b or the translucent cap 3 with an adhesive, or to heat-weld. This is because, when rain containing chemical substances in the atmosphere falls, the rain soaks and the adhesive is melted or the thermal welding is weakened. That is, in the direction inside the packing 10, the rain soaking into the bonded portion is first prevented by these contact portions.

さらに、ベース１には、電源導入部とした前記二本の金属棒５ａ、５ｂが底部１ａに、以下のようにして固着されている。   Further, the two metal rods 5a and 5b serving as power supply introduction portions are fixed to the base 1 on the base 1 as follows.

先ず、ベース１を樹脂成形するときに、インサート成形、すなわち金型内に二本の金属棒５ａ、５ｂを装填した後、樹脂を注入して固化させるようにし、図９、１０に示したように、これら金属棒５ａ、５ｂをベース１の底部１ａに一体化させる。このとき、ベース１には、前記収容空間６を形成すると共に、底部１ａに凹部１２を形成し、前記二本の金属棒５ａ、５ｂの上端が収容空間６に突き出るようにし、金属棒５ａ、５ｂの下端が凹部１２に突き出るようにする。そして、前記凹部１２にシリコンなどの弾性樹脂１３を流し込み、金属棒５ａ、５ｂの突き出ている根元部をこの弾性樹脂１３で固めるようにしている。   First, when the base 1 is molded with resin, insert molding, that is, after two metal rods 5a and 5b are loaded in the mold, the resin is injected and solidified, as shown in FIGS. In addition, the metal bars 5 a and 5 b are integrated with the bottom 1 a of the base 1. At this time, the base 1 is formed with the housing space 6 and the recess 12 is formed at the bottom 1a so that the upper ends of the two metal rods 5a and 5b protrude into the housing space 6, and the metal rod 5a, The lower end of 5 b protrudes into the recess 12. Then, an elastic resin 13 such as silicon is poured into the recess 12, and the protruding base portion of the metal rods 5 a and 5 b is hardened with the elastic resin 13.

なお、前記プリント配線基板２の端子とＬＥＤ発光体４の端子、プリント配線基板２の端子と金属棒５ａ、５ｂの上端、金属棒５ａの下端と口金７、および金属棒５ｂの下端とアウトレット１４は、図示していないが、それぞれリード線等（図示せず）により電気接続されている。   The terminals of the printed wiring board 2 and the terminals of the LED light emitter 4, the terminals of the printed wiring board 2 and the upper ends of the metal bars 5a and 5b, the lower ends of the metal bars 5a and the base 7, and the lower ends of the metal bars 5b and the outlet 14 are provided. Although not shown, each is electrically connected by a lead wire or the like (not shown).

以上のように構成されたこの発明のＬＥＤランプは、前記したようにベース１の周溝９に収容されたパッキン１０が、透光性キャップ３の第一突条１１ａを押圧され、押し潰されてベース１の周溝９に密着すると共に、この第一突条１１ａに密着するので、ベース１と透光性キャップ３との密閉が完全なものとなり、防水性に優れたものとなる。   In the LED lamp of the present invention configured as described above, the packing 10 accommodated in the circumferential groove 9 of the base 1 is pressed and crushed by the first protrusion 11a of the translucent cap 3 as described above. In addition to being in close contact with the peripheral groove 9 of the base 1 and in close contact with the first protrusion 11a, the base 1 and the translucent cap 3 are completely sealed, and the waterproof property is excellent.

また、この発明のＬＥＤランプは、前記したように透光性キャップ３の周溝９に収容されたパッキン１０が、ベース１の第一突条１１ａを押圧され、押し潰されて透光性キャップ３の周溝９に密着すると共に、この第一突条１１ａに密着するので、ベース１と透光性キャップ３との密閉が完全なものとなり、防水性に優れたものとなる。   Further, in the LED lamp of the present invention, as described above, the packing 10 accommodated in the circumferential groove 9 of the translucent cap 3 is pressed against the first protrusion 11a of the base 1 and is crushed, thereby translucent cap. 3 and the first protrusion 11a, the base 1 and the translucent cap 3 are completely sealed, and the waterproof property is excellent.

さらに、この発明のＬＥＤランプは、前記したようにベース１を樹脂成形するときに、金属棒５ａ、５ｂをベース１の底部１ａに一体化させ、さらに底部１ａに凹部１２に突き出した金属棒５ａ、５ｂの根元部を弾性樹脂１３で固めているので、ベース１と電源導入部であるこれら金属棒５ａ、５ｂとの密閉が完全なものとなり、防水性に優れたものとなる。なお、前記金属棒５ａ、５ｂの外周面には、きざみ目８を付けたものとしているので、樹脂成形するときに、このきざみ目８に樹脂が入り込み、ベース１の底部１ａに金属棒５ａ、５ｂを堅固に固着しておくことができる。   Further, in the LED lamp of the present invention, when the base 1 is resin-molded as described above, the metal rods 5a and 5b are integrated with the bottom portion 1a of the base 1, and the metal rod 5a protruding into the recess 12 at the bottom portion 1a. Since the base portion of 5b is hardened with the elastic resin 13, the base 1 and the metal rods 5a and 5b as the power supply introduction portions are completely sealed, and the waterproof property is excellent. Since the outer peripheral surfaces of the metal bars 5a and 5b are provided with a notch 8, when resin molding is performed, the resin enters the notch 8 and the bottom 1a of the base 1 has a metal bar 5a, 5b can be firmly fixed.

この発明のＬＥＤランプの一実施形態を示す正面図である。It is a front view which shows one Embodiment of the LED lamp of this invention. この発明のＬＥＤランプの断面図である。It is sectional drawing of the LED lamp of this invention. この発明のＬＥＤランプの透光性キャップの斜め下方から見た斜視図である。It is the perspective view seen from the slanting lower part of the translucent cap of the LED lamp of this invention. この発明のＬＥＤランプのベースを斜め上方から見た斜視図である。It is the perspective view which looked at the base of the LED lamp of this invention from diagonally upward. この発明のＬＥＤランプのベースと透光性キャップとを固着する前の状態の一例を示す説明図である。It is explanatory drawing which shows an example of the state before adhering the base and translucent cap of the LED lamp of this invention. この発明のＬＥＤランプのベースと透光性キャップとを固着する前の状態の他の例を示す説明図である。It is explanatory drawing which shows the other example of the state before adhering the base and translucent cap of the LED lamp of this invention. 図５に示すこの発明のＬＥＤランプのベースと透光性キャップとを固着した後の状態を示す説明図である。It is explanatory drawing which shows the state after adhering the base and translucent cap of the LED lamp of this invention shown in FIG. 図６に示すこの発明のＬＥＤランプのベースと透光性キャップとを固着した後の状態を示す説明図である。It is explanatory drawing which shows the state after adhering the base and translucent cap of the LED lamp of this invention shown in FIG. この発明のＬＥＤランプのベースを斜め下方から見た斜視図である。It is the perspective view which looked at the base of the LED lamp of this invention from diagonally downward. この発明のＬＥＤランプのベースの断面図である。It is sectional drawing of the base of the LED lamp of this invention. 従来のＬＥＤランプの一例を示しており、（ａ）は分解断面図、（ｂ）は組み立て完了した状態の断面図である。An example of the conventional LED lamp is shown, (a) is an exploded sectional view, (b) is a sectional view in a state where the assembly is completed.

符号の説明Explanation of symbols

１ ベース
１ａ 底部
１ｂ 端面
３ 透光性キャップ
３ａ 端面
５ａ 金属棒
５ｂ 金属棒
６ 収容空間
８ きざみ目
９ 周溝
１０ パッキン
１１ａ 第一突条
１１ｂ 第二突条
１２ 凹部
１３ 弾性樹脂 DESCRIPTION OF SYMBOLS 1 Base 1a Bottom part 1b End surface 3 Translucent cap 3a End surface 5a Metal rod 5b Metal rod 6 Storage space 8 Notch 9 Circumferential groove 10 Packing 11a 1st protrusion 11b 2nd protrusion 12 Recess 13 Elastic resin

Claims (7)

筒状体としたベース（１）の上端周囲に周溝（９）を形成し、この周溝（９）にリング状のパッキン（１０）を収容し、透光性キャップ（３）の下端周囲に前記ベース（１）の周溝（９）に入り込むようにしたリング状の第一突条（１１ａ）を形成し、前記ベース（１）の周溝（９）に収容されたパッキン（１０）に、透光性キャップ（３）の第一突条（１１ａ）を押圧させて、このパッキン（１０）を押し潰すようにして、パッキン（１０）と第一突条（１１ａ）を密着させ、さらに前記透光性キャップ（３）の端面（３ａ）を、前記ベース（１）の端面（１ｂ）に接着させることにより、ベース（１）に透光性キャップ（３）を固着したことを特徴とするＬＥＤランプ。   A circumferential groove (9) is formed around the upper end of the cylindrical base (1), a ring-shaped packing (10) is accommodated in the circumferential groove (9), and the periphery of the lower end of the translucent cap (3) A ring-shaped first protrusion (11a) is formed in the peripheral groove (9) of the base (1), and the packing (10) is accommodated in the peripheral groove (9) of the base (1). Then, the first protrusion (11a) of the translucent cap (3) is pressed to crush the packing (10), so that the packing (10) and the first protrusion (11a) are in close contact with each other, Further, the translucent cap (3) is fixed to the base (1) by adhering the end surface (3a) of the translucent cap (3) to the end surface (1b) of the base (1). LED lamp. 透光性キャップ（３）の下端周囲に周溝（９）を形成し、この周溝（９）にリング状のパッキン（１０）を収容し、筒状体としたベース（１）の上端周囲に前記透光性キャップ（３）の周溝（９）に入り込むようにしたリング状の第一突条（１１ａ）を形成し、前記透光性キャップ（３）の周溝（９）に収容されたパッキン（１０）に、ベース（１）の第一突条（１１ａ）を押圧させて、このパッキン（１０）を押し潰すようにして、パッキン（１０）と第一突条（１１ａ）を密着させ、さらに前記透光性キャップ（３）の端面（３ａ）を、前記ベース（１）の端面（１ｂ）に接着させることにより、ベース（１）に透光性キャップ（３）を固着したことを特徴とするＬＥＤランプ。   A circumferential groove (9) is formed around the lower end of the translucent cap (3), a ring-shaped packing (10) is accommodated in the circumferential groove (9), and the circumference of the upper end of the base (1) that is a cylindrical body A ring-shaped first protrusion (11a) is formed so as to enter the circumferential groove (9) of the translucent cap (3), and is accommodated in the circumferential groove (9) of the translucent cap (3). The packing (10) is pressed against the first protrusion (11a) of the base (1), and the packing (10) is crushed so that the packing (10) and the first protrusion (11a) The light-transmitting cap (3) is fixed to the base (1) by adhering the end surface (3a) of the light-transmitting cap (3) to the end surface (1b) of the base (1). An LED lamp characterized by that. 前記透光性キャップ（３）の端面（３ａ）に、前記第一突条（１１ａ）より小径としたリング状の第二突条（１１ｂ）を形成し、この第二突条（１１ｂ）を溶融させて、ベース（１）の端面（１ｂ）に溶着することにより、前記透光性キャップ（３）の端面（３ａ）をベース（１）の端面（１ｂ）に接着させたことを特徴とする請求項１記載のＬＥＤランプ。   A ring-shaped second ridge (11b) having a diameter smaller than that of the first ridge (11a) is formed on the end surface (3a) of the translucent cap (3), and the second ridge (11b) is formed. The end surface (3a) of the translucent cap (3) is adhered to the end surface (1b) of the base (1) by melting and welding to the end surface (1b) of the base (1). The LED lamp according to claim 1. 前記ベース（１）の端面（１ｂ）に、前記第一突条（１１ａ）より小径としたリング状の第二突条（１１ｂ）を形成し、この第二突条（１１ｂ）を溶融させて、透光性キャップ（３）の端面（３ａ）に溶着することにより、前記透光性キャップ（３）の端面（３ａ）をベース（１）の端面（１ｂ）に接着させたことを特徴とする請求項２記載のＬＥＤランプ。   A ring-shaped second ridge (11b) having a diameter smaller than that of the first ridge (11a) is formed on the end surface (1b) of the base (1), and the second ridge (11b) is melted. The end face (3a) of the translucent cap (3) is adhered to the end face (1b) of the base (1) by welding to the end face (3a) of the translucent cap (3). The LED lamp according to claim 2. 前記パッキン（１０）の縦断面形状を、上部を下部より窄めた形状にし、このパッキン（１０）が、透光性キャップ（３）の第一突条（１１ａ）に押圧され、押し潰されてベース（１）の周溝（９）に密着し易くなると共に、この第一突条（１１ａ）に密着し易くなるものとしたことを特徴とする請求項１または３記載のＬＥＤランプ。   The vertical cross-sectional shape of the packing (10) is made such that the upper part is constricted from the lower part, and the packing (10) is pressed and crushed by the first protrusion (11a) of the translucent cap (3). 4. The LED lamp according to claim 1, wherein the LED lamp is easily adhered to the circumferential groove (9) of the base (1) and is also easily adhered to the first protrusion (11 a). 前記パッキン（１０）の縦断面形状を、下部を上部より窄めた形状にし、このパッキン（１０）が、ベース（１）の第一突条（１１ａ）に押圧され、押し潰されて透光性キャップ（３）の周溝（９）に密着し易くなると共に、この第一突条（１１ａ）に密着し易くなるものとしたことを特徴とする請求項２または４記載のＬＥＤランプ。   The vertical cross-sectional shape of the packing (10) is made such that the lower part is constricted from the upper part, and the packing (10) is pressed by the first protrusion (11a) of the base (1), and is crushed and light-transmitted. 5. The LED lamp according to claim 2, wherein the LED lamp is easily adhered to the circumferential groove (9) of the cap (3) and is also easily adhered to the first protrusion (11 a). 前記ベース（１）を樹脂成形して、収容空間（６）を形成すると共に、底部（１ａ）に凹部（１２）を形成し、電源導入部とする二本の金属棒（５ａ、５ｂ）の上端が前記収容空間（６）に突き出るようにし、前記金属棒（５ａ、５ｂ）の下端が前記凹部（１２）に突き出るようにし、さらに前記凹部（１２）に弾性樹脂（１３）を流し込み、金属棒（５ａ、５ｂ）の突き出ている根元部を前記弾性樹脂（１３）で固めたことを特徴とする請求項１〜６のいずれかに記載のＬＥＤランプ。   The base (1) is resin-molded to form an accommodation space (6), and a recess (12) is formed in the bottom (1a) to form two metal rods (5a, 5b) serving as power supply introduction parts. The upper end protrudes into the accommodation space (6), the lower end of the metal rod (5a, 5b) protrudes into the recess (12), and the elastic resin (13) is poured into the recess (12) The LED lamp according to any one of claims 1 to 6, characterized in that a protruding base portion of the rod (5a, 5b) is hardened with the elastic resin (13).
JP2006024972A 2006-02-01 2006-02-01 Led lamp Pending JP2007207576A (en)

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