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JP3807131B2 - Light emitting diode fixing structure - Google Patents

Light emitting diode fixing structure Download PDF

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Publication number
JP3807131B2
JP3807131B2 JP32694198A JP32694198A JP3807131B2 JP 3807131 B2 JP3807131 B2 JP 3807131B2 JP 32694198 A JP32694198 A JP 32694198A JP 32694198 A JP32694198 A JP 32694198A JP 3807131 B2 JP3807131 B2 JP 3807131B2
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Japan
Prior art keywords
emitting diode
light emitting
metal plate
light
fixing structure
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP32694198A
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Japanese (ja)
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JP2000151150A (en
Inventor
昌也 大河戸
浩一 坂田
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Ichikoh Industries Ltd
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Ichikoh Industries Ltd
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Publication date
Application filed by Ichikoh Industries Ltd filed Critical Ichikoh Industries Ltd
Priority to JP32694198A priority Critical patent/JP3807131B2/en
Priority to KR1019990041194A priority patent/KR100365371B1/en
Priority to EP99122706A priority patent/EP1002696B1/en
Priority to US09/440,145 priority patent/US6386733B1/en
Priority to DE69936704T priority patent/DE69936704T2/en
Publication of JP2000151150A publication Critical patent/JP2000151150A/en
Priority to US09/766,837 priority patent/US6345902B2/en
Application granted granted Critical
Publication of JP3807131B2 publication Critical patent/JP3807131B2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/002—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips making direct electrical contact, e.g. by piercing
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/09—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for baseless lamp bulb
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
    • H01R4/2454—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions forming a U-shape with slotted branches
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Led Device Packages (AREA)

Description

【０００１】
【発明の属する技術分野】
この発明は、発光ダイオードの固定構造、特に車両用ランプ装置に好適な発光ダイオードの固定構造に関するものである。
【０００２】
【従来の技術】
車両用のランプ等で使用されている発光ダイオードとしては、特開平１０ー１８８６１４号公報に示すように、発光ダイオードの底面に形成されたリード脚を、ランプに設けられたプリント基板に対して、半田付けすることにより固定している。
【０００３】
【発明が解決しようとする課題】
しかしながら、従来のように、プリント基板に発光ダイオードを半田付けする構造では、発光ダイオードの光の利用効率が低く、必要な明るさを得るために数多くの発光ダイオードを必要とし、コストの面で不利である。
【０００４】
また、発光ダイオードのリード脚を１本づつプリント基板に半田付けするため、発光ダイオードを固定する作業が面倒で、製造効率が悪い。また、いったん固定した後に付け直す作業も困難である。
【０００５】
この発明は、このような従来の技術に着目してなされたものであり、光利用効率や製造効率の面で優れた発光ダイオードの固定構造を提供するものである。
【０００６】
【課題を解決するための手段】
請求項１記載の発明は、発光ダイオードのリード脚を金属プレートに係合し、該金属プレートをハウジングに配策されたコードに固定する発光ダイオードの固定構造であって、前記金属プレートに、発光ダイオードの光を反射可能な面積を有する表面部が形成されている。
【０００７】
請求項１記載の発明によれば、金属プレートに、発光ダイオードの光を反射可能な面積を有する表面部が形成されているため、発光ダイオード個々の光の利用効率が高くなり、同じ明るさを得るにしても、従来よりも発光ダイオードの数を少なくすることができる。従って、この発光ダイオードを利用したランプ構造の簡略化及びコストの低減を図ることができる。
【０００８】
請求項２記載の発明は、発光ダイオードに４本のリード脚が形成され、該発光ダイオードを、近接配置した２つの金属プレートによりコードに固定した。
【０００９】
請求項２記載の発明によれば、発光ダイオードのリード脚が４本のため、固定後に倒れにくく、且つ発光ダイオードの向きも変化しづらい。また、２つの金属プレートで、１つの発光ダイオードを固定するため、１つの金属プレートのサイズを小さくでき、金属プレートの製造が容易になる。更に、２つの金属プレートが互いに近接状態のため、光の利用効率に与える影響が小さい。
【００１０】
請求項３記載の発明は、発光ダイオードのリード脚が、銅と同等以上の伝熱性を有する金属で形成されている。
【００１１】
請求項３記載の発明によれば、発光ダイオードのリード脚が、銅と同等以上の伝熱性を有する金属で形成されているため、発光ダイオードの発熱はリード脚を介して金属プレートに確実に伝達される。そして、その熱が金属プレートの表面部で放熱されるため、発光ダイオードの放熱性が向上する。
【００１２】
請求項４記載の発明は、金属プレートに、ハウジングに向けて曲折した脚部を形成し、該脚部の先端にコードの外皮を切り込んで芯線と導通する圧入用の切溝が形成されている。
【００１３】
請求項４記載の発明によれば、金属プレートの脚部に形成した圧入用の切溝が、コードの外皮を切り込んで芯線と導通するため、この切溝とコードとの食い込み力により、発光ダイオードをワンタッチで固定することができる。従来のような半田付け作業が不要なため、固定作業が容易で、製造効率が良く、自動化も可能である。更に、付け直しも容易である。そして、金属プレートの表面部を、作業者が指で押すための面としても利用できるため、コードに対する切溝の圧入作業が容易である。
【００１４】
請求項５記載の発明は、金属プレートの表面部に金属色が施されている。
【００１５】
請求項５記載の発明によれば、金属プレートの表面部に金属色が施されているため、光が反射し易く、光の利用効率が更に向上する。
【００１６】
請求項６記載の発明は、発光ダイオードのリード脚を金属プレートに係合し、該金属プレートをハウジングに配策されたコードに固定する発光ダイオードの固定構造であって、前記金属プレートに、隣接する金属プレートとジャンパ線で接続するための孔部が形成されている。
【００１７】
請求項６記載の発明によれば、隣接する金属プレート間のコードに断線が生じても、その金属プレート同士をジャンパ線により接続して対応することができる。
【００１８】
【発明の実施の形態】
以下、この発明の好適な実施形態を図１〜図４に基づいて説明する。この実施形態では、自動車のストップランプの場合を例に説明する。図中の符号１は、このストップランプのレンズ内部に設けられたハウジングを示している。ストップランプ自体が、車体の表面形状に対応した立体的形状になっているため、このハウジング１も立体的になるように複数に分割された取付面１ａが段違いに形成されている。そして、各取付面１ａを順番に通るように２本のコード２が平行に配策されており、このコード２に対して発光ダイオード３が固定されている。コード２は、芯線２ａを外皮２ｂで覆った構造をしている。各取付面１ａでの発光ダイオード３の固定構造は、どれも同じなので、その内の１つの取付面１ａを図３で取り上げて説明する。
【００１９】
取付面１ａには、向かい合う２枚の壁４が形成されており、この壁４の上端に形成した切欠部５に各々コード２が嵌入されている。切欠部５の下側には、コード２を下から支える台座６が形成されている。また、壁４には、中央に剛性を高めるためのリブ７も形成されている。
【００２０】
符号８は、金属プレートで、表面部９の両端に取付面１ａ側へ向けて曲折した脚部１０が形成されている。該表面部９は、発光ダイオード３に覆われる部位で該発光ダイオード３を支持すると共に、該発光ダイオード３を支持した状態で発光ダイオード３の側面より表面部９が大きく露出する面が形成されている。また、この表面部９の両端には、それぞれ孔部１１が１つづつ形成されている。そして、この表面部９は、光を反射し易い金属色（銀白色）になってる。更に、表面部９には、互いに接近した状態で一対のスリット１２が打ち抜き形成されている。脚部１０の先端には、下方が斜めに開いた形状の切溝１３と、外側への切起し１４が形成されている。発光ダイオード３は、四隅に４本のリード脚１５を備えている。このリード脚１５は、伝熱製の良い銅で出来ている。
【００２１】
次に、ハウジング１を固定する手順を説明する。まず、発光ダイオード３のリード脚１５を、各々金属プレート８のスリット１２に差し込んで係合させる。次に、金属プレート８の切溝１３を、各コード２の上にセットし、金属プレート８の表面部９を押して、切溝１３をコード２に対して圧入する。発光ダイオード３の周囲に表面部９が存在するため、この表面部９を指で押す面として利用でき、圧入作業が容易である。
【００２２】
コード２に対して切溝１３が圧入されると、この切溝１３がコード２の外皮２ｂを切り込んで芯線２ａと導通するため（図４参照）、この切溝１３とコード２との食い込み力により、発光ダイオード３がコード２に対して固定される。また、金属プレート８を介して、発光ダイオード３とコード２との導通状態も得られる。コード２の下に台座６があるため、切溝１３の圧入を確実に行える。また、金属プレート８の脚部１０は、互いに向かい合う壁４の間に入り込むと共に、脚部１０に形成した切起し１４が壁４に弾接し、金属プレート８の安定した状態が得られる。
【００２３】
このように、切溝１３をワンタッチでコード２に圧入するだけで、発光ダイオード３の固定が行えるため、従来のような半田付け作業が不要になり、固定作業が容易で、製造効率が良く、自動化も可能である。更に、付け直しも容易である。また、固定された発光ダイオード３は、リード脚１５が４本のため、固定後に倒れにくく、発光ダイオード３の向きも変化しづらい。更に、１つの発光ダイオード３を、２つの金属プレート８で固定するため、１つの金属プレート８のサイズを小さくでき、金属プレート８の製造が容易である。
【００２４】
そして、固定された発光ダイオード３の光は、金属色が施された金属プレート８の表面部９により確実に反射されるため、発光ダイオード３個々の光の利用効率が高い。従って、同じ明るさを得るにしても、従来よりも発光ダイオード３の数を少なくすることができ、ランプ構造の簡略化及びコストの低減を図ることができる。また、２つの金属プレート８で発光ダイオード３を固定しているが、２つの金属プレート８が互いに近接して一様状のため、光の利用効率が向上する。更に、発光ダイオード３のリード脚１５が、伝熱性の高い銅製のため、発光ダイオード３の発熱は、リード脚１５を介して金属プレート８に確実に伝えられる。そして、その熱は、金属プレート８の広い表面部９で放熱されるため、発光ダイオード３の放熱性が向上する。
【００２５】
更に、金属プレート８の表面部９にそれぞれ孔部１１が１つづつ形成されているため、万一、隣接する金属プレート８との間のコード２に断線が生じても、図１に示すように、ジャンパ線１６の両端部を各金属プレート８の孔部に対してビス１７で止めることにより、その金属プレート８同士を電気的に接続状態にすることができる。このように不測の事態に対する対応策も考慮されているため信頼性が高い。
【００２６】
【発明の効果】
請求項１記載の発明によれば、金属プレートに、発光ダイオードの光を反射可能な面積を有する表面部が形成されているため、発光ダイオード個々の光の利用効率が高くなり、同じ明るさを得るにしても、従来よりも発光ダイオードの数を少なくすることができる。従って、この発光ダイオードを利用したランプ構造の簡略化及びコストの低減を図ることができる。
【００２７】
請求項２記載の発明によれば、発光ダイオードのリード脚が４本のため、固定後に倒れにくく、且つ発光ダイオードの向きも変化しづらい。また、２つの金属プレートで、１つの発光ダイオードを固定するため、１つの金属プレートのサイズを小さくでき、金属プレートの製造が容易になる。更に、２つの金属プレートが互いに近接状態のため、光の利用効率に与える影響が小さい。
【００２８】
請求項３記載の発明によれば、発光ダイオードのリード脚が、銅と同等以上の伝熱性を有する金属で形成されているため、発光ダイオードの発熱はリード脚を介して金属プレートに確実に伝達される。そして、その熱が金属プレートの表面部で放熱されるため、発光ダイオードの放熱性が向上する。
【００２９】
請求項４記載の発明によれば、金属プレートの脚部に形成した圧入用の切溝が、コードの外皮を切り込んで芯線と導通するため、この切溝とコードとの食い込み力により、発光ダイオードをワンタッチで固定することができる。従来のような半田付け作業が不要なため、固定作業が容易で、製造効率が良く、自動化も可能である。更に、付け直しも容易である。そして、金属プレートの表面部を、作業者が指で押すための面としても利用できるため、コードに対する切溝の圧入作業が容易である。
【００３０】
請求項５記載の発明によれば、金属プレートの表面部に金属色が施されているため、光が反射し易く、光の利用効率が更に向上する。
【００３１】
請求項６記載の発明によれば、隣接する金属プレート間のコードに断線が生じても、その金属プレート同士をジャンパ線により接続して対応することができる。
【図面の簡単な説明】
【図１】この発明の一実施形態に係る発光ダイオードの固定構造を示す平面図。
【図２】発光ダイオードの固定構造を示す斜視図。
【図３】発光ダイオードの固定構造を示す部分斜視図。
【図４】コードに対する切溝の圧入後の状態を示す断面図。
【符号の説明】
１ ハウジング
２ コード
２ａ 芯線
２ｂ 外皮
３ 発光ダイオード
８ 金属プレート
９ 表面部
１０ 脚部
１１ 孔部
１３ 切溝
１５ リード脚
１６ ジャンパ線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a light-emitting diode fixing structure, and more particularly to a light-emitting diode fixing structure suitable for a vehicle lamp device.
[0002]
[Prior art]
As a light emitting diode used in a lamp for a vehicle, as shown in Japanese Patent Laid-Open No. 10-188614, a lead leg formed on the bottom surface of the light emitting diode is used with respect to a printed circuit board provided on the lamp. It is fixed by soldering.
[0003]
[Problems to be solved by the invention]
However, the conventional structure in which the light emitting diode is soldered to the printed circuit board has a low light use efficiency of the light emitting diode, and requires a large number of light emitting diodes to obtain the required brightness, which is disadvantageous in terms of cost. It is.
[0004]
Further, since the lead legs of the light emitting diodes are soldered to the printed circuit board one by one, the work of fixing the light emitting diodes is troublesome and the manufacturing efficiency is poor. Also, it is difficult to reattach after fixing.
[0005]
The present invention has been made by paying attention to such a conventional technique, and provides a light-emitting diode fixing structure that is excellent in terms of light utilization efficiency and manufacturing efficiency.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a light-emitting diode fixing structure in which a lead leg of a light-emitting diode is engaged with a metal plate, and the metal plate is fixed to a cord arranged in a housing. A surface portion having an area capable of reflecting the light of the diode is formed.
[0007]
According to the first aspect of the present invention, since the surface portion having an area capable of reflecting the light of the light emitting diode is formed on the metal plate, the light use efficiency of each light emitting diode is increased, and the same brightness is obtained. Even if it obtains, the number of light emitting diodes can be reduced compared with the past. Therefore, the lamp structure using the light emitting diode can be simplified and the cost can be reduced.
[0008]
According to the second aspect of the present invention, four lead legs are formed on the light emitting diode, and the light emitting diode is fixed to the cord by two metal plates arranged close to each other.
[0009]
According to the second aspect of the present invention, since the light emitting diode has four lead legs, it is difficult to fall down after being fixed, and the direction of the light emitting diode is difficult to change. Further, since one light emitting diode is fixed by two metal plates, the size of one metal plate can be reduced, and the metal plate can be easily manufactured. Furthermore, since the two metal plates are close to each other, the influence on the light use efficiency is small.
[0010]
According to a third aspect of the present invention, the lead leg of the light emitting diode is formed of a metal having a heat transfer property equal to or higher than that of copper.
[0011]
According to the third aspect of the present invention, since the lead leg of the light emitting diode is formed of a metal having a heat transfer property equal to or higher than that of copper, the heat generated by the light emitting diode is reliably transmitted to the metal plate via the lead leg. Is done. And since the heat is radiated at the surface portion of the metal plate, the heat dissipation of the light emitting diode is improved.
[0012]
According to a fourth aspect of the present invention, the metal plate is formed with a leg portion bent toward the housing, and a press-fit kerf is formed at the tip of the leg portion to cut the outer shell of the cord and to conduct with the core wire. .
[0013]
According to the invention described in claim 4, since the press-fitting grooving formed in the leg portion of the metal plate cuts the outer skin of the cord and conducts with the core wire, the light-emitting diode is generated by the biting force between the kerf and the cord. Can be fixed with a single touch. Since the conventional soldering operation is unnecessary, the fixing operation is easy, the manufacturing efficiency is high, and the automation is possible. Furthermore, reattachment is easy. And since the surface part of a metal plate can be utilized also as a surface for an operator to press with a finger, the press-fitting work of the kerf with respect to a cord is easy.
[0014]
In the invention according to claim 5, a metal color is applied to the surface portion of the metal plate.
[0015]
According to invention of Claim 5, since the metal color is given to the surface part of the metal plate, light is easy to reflect and the utilization efficiency of light improves further.
[0016]
The invention according to claim 6 is a light-emitting diode fixing structure in which the lead leg of the light-emitting diode is engaged with the metal plate, and the metal plate is fixed to the cord arranged in the housing, and is adjacent to the metal plate. A hole for connecting to the metal plate to be connected by a jumper wire is formed.
[0017]
According to the sixth aspect of the present invention, even if a disconnection occurs in the cord between adjacent metal plates, the metal plates can be connected by a jumper wire.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described below with reference to FIGS. In this embodiment, the case of a stop lamp for an automobile will be described as an example. Reference numeral 1 in the drawing denotes a housing provided inside the lens of the stop lamp. Since the stop lamp itself has a three-dimensional shape corresponding to the surface shape of the vehicle body, the mounting surface 1a divided into a plurality of parts so that the housing 1 is also three-dimensional is formed in steps. Then, two cords 2 are arranged in parallel so as to pass through each mounting surface 1 a in order, and the light emitting diode 3 is fixed to the cord 2. The cord 2 has a structure in which the core wire 2a is covered with an outer skin 2b. Since the fixing structure of the light emitting diode 3 on each mounting surface 1a is the same, one mounting surface 1a among them will be described with reference to FIG.
[0019]
Two walls 4 facing each other are formed on the mounting surface 1 a, and the cords 2 are respectively fitted into the notches 5 formed at the upper ends of the walls 4. A pedestal 6 that supports the cord 2 from below is formed below the notch 5. The wall 4 is also formed with a rib 7 for increasing rigidity at the center.
[0020]
Reference numeral 8 denotes a metal plate, and leg portions 10 are formed at both ends of the surface portion 9 and bent toward the mounting surface 1a. The surface portion 9 supports the light emitting diode 3 at a portion covered with the light emitting diode 3, and a surface is formed so that the surface portion 9 is exposed larger than the side surface of the light emitting diode 3 with the light emitting diode 3 supported. Yes. Further, one hole portion 11 is formed at each end of the surface portion 9. The surface portion 9 has a metallic color (silver white) that easily reflects light. Further, a pair of slits 12 are punched and formed on the surface portion 9 in a state of being close to each other. At the tip of the leg portion 10, a kerf 13 having a shape that opens obliquely downward and a cut-and-raised portion 14 outward are formed. The light emitting diode 3 includes four lead legs 15 at four corners. The lead leg 15 is made of heat-transferred copper.
[0021]
Next, a procedure for fixing the housing 1 will be described. First, the lead legs 15 of the light emitting diodes 3 are respectively inserted into the slits 12 of the metal plate 8 and engaged. Next, the groove 13 of the metal plate 8 is set on each cord 2, and the surface portion 9 of the metal plate 8 is pressed to press-fit the groove 13 into the cord 2. Since the surface portion 9 exists around the light emitting diode 3, the surface portion 9 can be used as a surface to be pressed with a finger, and press-fitting work is easy.
[0022]
When the kerf 13 is press-fitted into the cord 2, the kerf 13 cuts the outer skin 2b of the cord 2 and is electrically connected to the core wire 2a (see FIG. 4). Therefore, the biting force between the kerf 13 and the cord 2 Thus, the light emitting diode 3 is fixed to the cord 2. In addition, a conductive state between the light emitting diode 3 and the cord 2 can be obtained via the metal plate 8. Since the pedestal 6 is present under the cord 2, the cut groove 13 can be reliably pressed. Further, the leg portion 10 of the metal plate 8 enters between the walls 4 facing each other, and the cut and raised 14 formed in the leg portion 10 elastically contacts the wall 4 so that the stable state of the metal plate 8 is obtained.
[0023]
Thus, since the light emitting diode 3 can be fixed simply by press-fitting the kerf 13 into the cord 2 with one touch, the conventional soldering operation becomes unnecessary, the fixing operation is easy, and the manufacturing efficiency is good. Automation is also possible. Furthermore, reattachment is easy. Further, since the fixed light emitting diode 3 has four lead legs 15, it is difficult to fall down after fixing, and the direction of the light emitting diode 3 is also difficult to change. Further, since one light emitting diode 3 is fixed by two metal plates 8, the size of one metal plate 8 can be reduced, and the metal plate 8 can be easily manufactured.
[0024]
And since the light of the fixed light emitting diode 3 is reliably reflected by the surface part 9 of the metal plate 8 provided with the metal color, the light use efficiency of each light emitting diode 3 is high. Therefore, even if the same brightness is obtained, the number of the light emitting diodes 3 can be reduced as compared with the prior art, and the lamp structure can be simplified and the cost can be reduced. Further, although the light emitting diode 3 is fixed by the two metal plates 8, since the two metal plates 8 are close to each other and uniform, the light use efficiency is improved. Furthermore, since the lead leg 15 of the light emitting diode 3 is made of copper having high heat conductivity, the heat generated by the light emitting diode 3 is reliably transmitted to the metal plate 8 through the lead leg 15. And since the heat is radiated by the wide surface portion 9 of the metal plate 8, the heat dissipation of the light emitting diode 3 is improved.
[0025]
Further, since one hole portion 11 is formed on each surface portion 9 of the metal plate 8, even if a break occurs in the cord 2 between the adjacent metal plates 8, as shown in FIG. In addition, the metal plates 8 can be electrically connected to each other by fastening both ends of the jumper wire 16 to the holes of the metal plates 8 with screws 17. In this way, countermeasures against unforeseen circumstances are also taken into consideration, so the reliability is high.
[0026]
【The invention's effect】
According to the first aspect of the present invention, since the surface portion having an area capable of reflecting the light of the light emitting diode is formed on the metal plate, the light use efficiency of each light emitting diode is increased, and the same brightness is obtained. Even if it obtains, the number of light emitting diodes can be reduced compared with the past. Therefore, the lamp structure using the light emitting diode can be simplified and the cost can be reduced.
[0027]
According to the second aspect of the present invention, since the light emitting diode has four lead legs, it is difficult to fall down after being fixed, and the direction of the light emitting diode is difficult to change. Further, since one light emitting diode is fixed by two metal plates, the size of one metal plate can be reduced, and the metal plate can be easily manufactured. Furthermore, since the two metal plates are close to each other, the influence on the light use efficiency is small.
[0028]
According to the third aspect of the present invention, since the lead leg of the light emitting diode is formed of a metal having a heat transfer property equal to or higher than that of copper, the heat generated by the light emitting diode is reliably transmitted to the metal plate via the lead leg. Is done. And since the heat is radiated at the surface portion of the metal plate, the heat dissipation of the light emitting diode is improved.
[0029]
According to the invention described in claim 4, since the press-fitting grooving formed in the leg portion of the metal plate cuts the outer skin of the cord and conducts with the core wire, the light-emitting diode is generated by the biting force between the kerf and the cord Can be fixed with a single touch. Since the conventional soldering operation is unnecessary, the fixing operation is easy, the manufacturing efficiency is high, and the automation is possible. Furthermore, reattachment is easy. And since the surface part of a metal plate can be utilized also as a surface for an operator to press with a finger, the press-fitting work of the kerf with respect to a cord is easy.
[0030]
According to invention of Claim 5, since the metal color is given to the surface part of the metal plate, light is easy to reflect and the utilization efficiency of light improves further.
[0031]
According to the sixth aspect of the present invention, even when the cord between adjacent metal plates is disconnected, the metal plates can be connected by jumper wires.
[Brief description of the drawings]
FIG. 1 is a plan view showing a light emitting diode fixing structure according to an embodiment of the present invention;
FIG. 2 is a perspective view showing a fixing structure of a light emitting diode.
FIG. 3 is a partial perspective view showing a fixing structure of a light emitting diode.
FIG. 4 is a cross-sectional view showing a state after press-fitting a kerf into a cord.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing 2 Cord 2a Core wire 2b Outer skin 3 Light emitting diode 8 Metal plate 9 Surface part 10 Leg part 11 Hole part 13 Groove 15 Lead leg 16 Jumper wire

Claims (6)

発光ダイオードのリード脚を金属プレートに係合し、該金属プレートをハウジングに配策されたコードに固定する発光ダイオードの固定構造であって、
前記金属プレートに、発光ダイオードの光を反射可能な面積を有する表面部が形成されていることを特徴とする発光ダイオードの固定構造。A light emitting diode fixing structure for engaging a lead leg of a light emitting diode with a metal plate and fixing the metal plate to a cord arranged in a housing,
A light emitting diode fixing structure, wherein a surface portion having an area capable of reflecting light of the light emitting diode is formed on the metal plate. 請求項１記載の発光ダイオードの固定構造であって、
発光ダイオードに４本のリード脚が形成され、該発光ダイオードを、近接配置した２つの金属プレートによりコードに固定したことを特徴とする発光ダイオードの固定構造。The light-emitting diode fixing structure according to claim 1,
4. A light-emitting diode fixing structure, wherein four lead legs are formed on the light-emitting diode, and the light-emitting diode is fixed to a cord by two metal plates arranged close to each other. 請求項１又は請求項２記載の発光ダイオードの固定構造であって、
発光ダイオードのリード脚が、銅と同等以上の伝熱性を有する金属で形成されていることを特徴とする発光ダイオードの固定構造。A fixing structure of a light emitting diode according to claim 1 or 2,
A structure for fixing a light emitting diode, wherein a lead leg of the light emitting diode is formed of a metal having a heat transfer property equal to or higher than that of copper. 請求項１〜３のいずれか１項に記載の発光ダイオードの固定構造であって、
金属プレートに、ハウジングに向けて曲折した脚部を形成し、該脚部の先端にコードの外皮を切り込んで芯線と導通する圧入用の切溝が形成されていることを特徴とする発光ダイオードの固定構造。The light-emitting diode fixing structure according to any one of claims 1 to 3,
A light emitting diode comprising a metal plate, a leg bent toward the housing, and a cut groove for press-fitting to the core wire by cutting the outer skin of the cord at the tip of the leg. Fixed structure. 請求項１〜４のいずれか１項に記載の発光ダイオードの固定構造であって、
金属プレートの表面部に金属色が施されていることを特徴とする発光ダイオードの固定構造。The light-emitting diode fixing structure according to any one of claims 1 to 4,
A structure for fixing a light emitting diode, wherein a metal color is applied to a surface portion of a metal plate. 発光ダイオードのリード脚を金属プレートに係合し、該金属プレートをハウジングに配策されたコードに固定する発光ダイオードの固定構造であって、
前記金属プレートに、隣接する金属プレートとジャンパ線で接続するための孔部が形成されていることを特徴とする発光ダイオードの固定構造。A light emitting diode fixing structure for engaging a lead leg of a light emitting diode with a metal plate and fixing the metal plate to a cord arranged in a housing,
A fixing structure for a light emitting diode, wherein a hole for connecting to an adjacent metal plate with a jumper wire is formed in the metal plate.
JP32694198A 1998-11-17 1998-11-17 Light emitting diode fixing structure Expired - Fee Related JP3807131B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP32694198A JP3807131B2 (en) 1998-11-17 1998-11-17 Light emitting diode fixing structure
KR1019990041194A KR100365371B1 (en) 1998-11-17 1999-09-22 Fixed structure of light emitting diode
EP99122706A EP1002696B1 (en) 1998-11-17 1999-11-15 Light emitting diode mounting structure
US09/440,145 US6386733B1 (en) 1998-11-17 1999-11-15 Light emitting diode mounting structure
DE69936704T DE69936704T2 (en) 1998-11-17 1999-11-15 Mounting structure for LEDs
US09/766,837 US6345902B2 (en) 1998-11-17 2001-01-23 Light emitting diode mounting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32694198A JP3807131B2 (en) 1998-11-17 1998-11-17 Light emitting diode fixing structure

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JP3807131B2 true JP3807131B2 (en) 2006-08-09

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TW200700795A (en) 2005-06-30 2007-01-01 Benq Corp Fixing structure
JP4916982B2 (en) * 2007-09-19 2012-04-18 スタンレー電気株式会社 Connector for multi-core flat cable
JP2011243512A (en) * 2010-05-20 2011-12-01 Birumen Kagoshima:Kk Led lighting tool

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JPH0571887U (en) * 1992-02-26 1993-09-28 株式会社ナカネ Signboard with a combination of funnel type reflector and light emitting diode
JPH065924A (en) * 1992-06-17 1994-01-14 Seiko Epson Corp Mounting method of light emitting diode
KR940014116A (en) * 1992-12-26 1994-07-16 윤종용 Pellet exchanger
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