JP3231522U - Lamp - Google Patents

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JP3231522U
JP3231522U JP2021000280U JP2021000280U JP3231522U JP 3231522 U JP3231522 U JP 3231522U JP 2021000280 U JP2021000280 U JP 2021000280U JP 2021000280 U JP2021000280 U JP 2021000280U JP 3231522 U JP3231522 U JP 3231522U
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light emitting
led
lamp
emitting semiconductor
fan
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晋士 石田
晋士 石田
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Abstract

【課題】灯具の電気回路に抵抗器を挿入した場合でも発光半導体素子の抵抗値が減少するのを抑制して、車両の制御部が誤判定するのを防止するとともに、普及版などの一般的の発光半導体素子を用いた場合でも過度に明るくなることを抑制することができる灯具を提供する。【解決手段】LED灯具10のファン21はLED素子11に電気的に並列接続され、通電時にLED素子11に向けて送風する。ファン21は電気的に抵抗器として機能するとともに、LED素子11の温度が所定の温度以上とならないように冷却する。また、カバー部18は、LED素子11の発光部をその発光方向外側から覆うように配置されており、発光部から発光される光量を減少させた状態で発光部の光を透過させる透過フィルタ膜19を有して構成される。【選択図】図4PROBLEM TO BE SOLVED: To suppress a decrease in a resistance value of a light emitting semiconductor element even when a resistor is inserted into an electric circuit of a lamp to prevent a vehicle control unit from making an erroneous determination, and to prevent a general version such as a popular version. Provided is a lamp that can suppress excessive brightness even when the light emitting semiconductor element of the above is used. A fan 21 of an LED lamp 10 is electrically connected to an LED element 11 in parallel, and blows air toward the LED element 11 when energized. The fan 21 electrically functions as a resistor and cools the LED element 11 so that the temperature does not exceed a predetermined temperature. Further, the cover portion 18 is arranged so as to cover the light emitting portion of the LED element 11 from the outside in the light emitting direction, and is a transmission filter film that transmits the light of the light emitting portion in a state where the amount of light emitted from the light emitting portion is reduced. It is configured to have 19. [Selection diagram] Fig. 4

Description

本考案は、例えば自動車および二輪車などの車両に搭載される灯具に関する。 The present invention relates to a lamp mounted on a vehicle such as an automobile and a two-wheeled vehicle.

自動車および二輪車などの車両において、その左右両側には左右一対のウインカーが配設される。この左右一対のウインカーのそれぞれにはバルブ(灯具の一例)が内設されており、そのバルブが点滅することでその左右一対のウインカーは車両の、左折または右折などの進行方向を外部の車両や歩行者などに報知する。 In vehicles such as automobiles and motorcycles, a pair of left and right blinkers are arranged on both the left and right sides thereof. A bulb (an example of a lamp) is installed in each of the pair of left and right turn signals, and when the bulb blinks, the pair of left and right turn signals can be used to change the direction of travel of the vehicle, such as turning left or right. Notify pedestrians.

左右一対のウインカーのうち、その一方のバルブが切れた場合、車両に搭載される制御装置は、その一方のバルブに電流が流れていないことを検出し、その他方のバルブの点滅周期を早くさせる。この状態または現象はハイフラッシャー状態またはハイフラッシャー現象と呼ばれ、このハイフラッシャー状態により車両の運転者は、バルブが切れたことを認識することが可能となる。
なお、ウインカー灯具以外の、テールランプ、バックランプにおいても、バルブが切れた際に、ワーニング(異常を示す表示灯)などが計器パネルなどで表示される。
When one of the left and right blinkers is burnt, the control device mounted on the vehicle detects that no current is flowing through that one bulb and accelerates the blinking cycle of the other bulb. .. This state or phenomenon is called a high flasher state or a high flasher phenomenon, and this high flasher state enables the driver of the vehicle to recognize that the valve has been blown.
In addition to blinker lamps, tail lamps and back lamps also display warnings (indicators indicating abnormalities) on the instrument panel when the bulb is cut off.

ところで、発光半導体素子(LED:Light Emitting Diode、以下「LED素子」ともいう。)の普及などにより、車両においてもそのヘッドライトまたは、ウインカーなどの信号灯具などの照明装置にLED素子が広く採用されるようになった。また、LED素子を含む灯具(以下「LED灯具」ともいう。)では、そのLED素子が点灯した際の消費電力の定格は、純正・標準のウインカーのバルブと同等に設定されている場合が多い。 By the way, due to the widespread use of light emitting semiconductor elements (LEDs: Light Emitting Diodes, hereinafter also referred to as "LED elements"), LED elements are widely adopted in vehicles as well as in their headlights or lighting devices such as signal lamps such as blinkers. It became so. Further, in a lamp including an LED element (hereinafter, also referred to as "LED lamp"), the power consumption rating when the LED element is lit is often set to be the same as that of a genuine / standard winker valve. ..

しかしながら、LED素子に流れる電流は小さく、LED素子の消費電力は純正のウインカーのバルブと比較してわずかであり、上述の消費電力の定格を満たさない場合がある。そのため、車両の制御装置は、LED灯具が故障したと誤判定し、ハイフラッシャー状態とする制御をする可能性がある。ウインカー灯具以外の、テールランプ、バックランプにおいても同様に、純正バルブと消費電力が異なった際、ワーニング(異常を示す表示灯)などが表示される可能性がある。 However, the current flowing through the LED element is small, the power consumption of the LED element is small as compared with the genuine blinker valve, and the above-mentioned power consumption rating may not be satisfied. Therefore, the vehicle control device may erroneously determine that the LED lamp has failed and control the LED lamp to be in a high flasher state. Similarly, when the power consumption of the tail lamp and the back lamp other than the blinker lamp is different from that of the genuine bulb, a warning (indicator lamp indicating an abnormality) may be displayed.

そこで、従来技術として、複数のLED素子と、複数のスイッチ素子と、複数の抵抗と、制御部と、を備えるLED灯具が知られる(例えば、特許文献1参照)。この特許文献1のLED灯具では、複数のスイッチ素子は、複数のLED素子に対応して設けられ、LED素子に並列に接続される。複数の抵抗は、複数のLED素子に対応して設けられ、LED素子とスイッチ素子とに直列に接続され、通電開始指令時に電源が印加される。そして、制御部は、複数のLED素子のそれぞれのLED素子を順次点灯させるとともに、LED素子の点灯に先立ってスイッチ素子をオンさせて抵抗およびスイッチ素子に電流を流した後、スイッチ素子をオフさせて抵抗およびLED素子に電流を流す。 Therefore, as a prior art, an LED lamp having a plurality of LED elements, a plurality of switch elements, a plurality of resistors, and a control unit is known (see, for example, Patent Document 1). In the LED lamp of Patent Document 1, a plurality of switch elements are provided corresponding to the plurality of LED elements and are connected in parallel to the LED elements. The plurality of resistors are provided corresponding to the plurality of LED elements, are connected in series to the LED element and the switch element, and a power source is applied at the time of energization start command. Then, the control unit turns on each of the LED elements of the plurality of LED elements in sequence, turns on the switch element prior to lighting the LED element, passes a current through the resistor and the switch element, and then turns off the switch element. A current is passed through the resistor and the LED element.

特許第5947964号公報Japanese Patent No. 5947964

特許文献1のLED灯具は、その電気回路に抵抗器(抵抗)を備えることで消費電力を増加させて、前述した車両の制御装置の誤判定を防止するものである。 The LED lamp of Patent Document 1 is provided with a resistor (resistor) in its electric circuit to increase power consumption and prevent the above-mentioned erroneous determination of the vehicle control device.

しかしながら、抵抗器は熱を発生させるため、LED素子の抵抗値が減少してしまい、結果的に、LED灯具全体の電気的な抵抗値が十分に上昇することができず、制御装置の誤判定に繋(つな)がる可能性がある。また、一般的に広く普及している(以下「普及版の」ともいう。)LED素子の発光部の光量は、その同様な定格において標準のウインカーのバルブと比べた場合、はるかに大きい。つまり、従来の灯具に代えてLED灯具を用いようとする際、LED灯具は過度に明るくなってしまう嫌いがある。前述の特許文献1のLED灯具は、これら点で改善の余地があった。 However, since the resistor generates heat, the resistance value of the LED element decreases, and as a result, the electrical resistance value of the entire LED lamp cannot be sufficiently increased, resulting in an erroneous determination of the control device. There is a possibility that it will be connected to. Further, the amount of light of the light emitting part of the LED element which is generally widely used (hereinafter, also referred to as "popular version") is much larger than that of a standard blinker bulb in the same rating. That is, when trying to use an LED lamp instead of the conventional lamp, the LED lamp dislikes becoming excessively bright. The LED lamp fixture of Patent Document 1 described above has room for improvement in these respects.

本考案は、前述した事情に鑑みてなされたものであり、灯具の電気回路に抵抗器を挿入した場合でも発光半導体素子の抵抗値が減少するのを抑制して、車両の制御部が誤判定するのを防止するとともに、普及版などの一般的の発光半導体素子を用いた場合でも過度に明るくなることを抑制することができる灯具を提供する。 The present invention has been made in view of the above-mentioned circumstances, and suppresses a decrease in the resistance value of the light emitting semiconductor element even when a resistor is inserted in the electric circuit of the lamp, so that the control unit of the vehicle makes an erroneous determination. Provided is a lamp that can be prevented from becoming excessively bright even when a general light emitting semiconductor element such as a popular version is used.

本考案の上述した目的は、下記の構成により達成される。
(1)発光部を有する発光半導体素子と、前記発光半導体素子に対し電気的に並列接続され、通電時に前記発光半導体素子に向けて送風するファンと、前記発光部をその発光方向外側から覆うように配置されるカバー部と、を含み、前記カバー部材は、前記発光部から発光される光量を減少する透過フィルタ膜部を有する、灯具。
(2)前記発光半導体素子を複数含み、前記ファンは、前記発光半導体素子のいずれにも電気的に並列接続される、(1)に記載の灯具。
(3)前記カバー部は、前記発光半導体素子の前記発光部のそれぞれを一体的に覆うように設けられる、(2)に記載の灯具。
(4)前記カバー部は円筒状に形成され、前記発光半導体素子のそれぞれは、前記カバー部の内部に配置される、(3)に記載の灯具。
The above-mentioned object of the present invention is achieved by the following configuration.
(1) A light emitting semiconductor element having a light emitting portion, a fan that is electrically connected in parallel to the light emitting semiconductor element and blows air toward the light emitting semiconductor element when energized, and the light emitting portion are covered from the outside in the light emitting direction. A lamp device including a cover portion arranged in a lamp, wherein the cover member has a transmission filter film portion that reduces the amount of light emitted from the light emitting portion.
(2) The lamp according to (1), which includes a plurality of the light emitting semiconductor elements, and the fan is electrically connected in parallel to any of the light emitting semiconductor elements.
(3) The lamp according to (2), wherein the cover portion is provided so as to integrally cover each of the light emitting portions of the light emitting semiconductor element.
(4) The lamp according to (3), wherein the cover portion is formed in a cylindrical shape, and each of the light emitting semiconductor elements is arranged inside the cover portion.

前記(1)の構成によれば、ファンは発光半導体素子に電気的に並列接続され、通電時に発光半導体素子に向けて送風する。ファンは電気的に抵抗器として機能するとともに、発光半導体素子の温度が所定の温度以上とならないように冷却する。このため、灯具の電気回路に抵抗器を挿入した場合でも発光半導体素子の抵抗値が減少するのを抑制して、車両の制御部が誤判定するのを防止することができる。これにより、灯具の制御異常に起因するハイフラッシャー現象およびワーニング表示などの誤作動の発生を抑制することができる。また、カバー部は、発光半導体素子の発光部をその発光方向外側から覆うように配置されており、また、発光部から発光される光量を減少する透過フィルタ膜を有して構成される。このため、普及版などの一般的な発光半導体素子を用いた場合でも過度に明るくなることを抑制して、コスト削減および車両安全の確保を図ることができる。
前記(2)の構成によれば、発光半導体素子を複数含み、ファンは、発光半導体素子のいずれにも電気的に並列接続されるため、車両の制御部が誤判定するのをより効率良くまたはより確実に防止することができる。
前記(3)の構成によれば、カバー部は、発光半導体素子の発光部のそれぞれを一体的に覆うように設けられるため、部品点数を少なくしてコスト削減および灯具全体の小型化を図ることができる。
前記(4)の構成によれば、カバー部は円筒状に形成され、発光半導体素子のそれぞれは、カバー部の内部に配置されるため、灯具全体をより一層小型化するとともに、灯具の強度も高めることができる。
According to the configuration of (1) above, the fan is electrically connected in parallel to the light emitting semiconductor element and blows air toward the light emitting semiconductor element when energized. The fan electrically functions as a resistor and cools the light emitting semiconductor element so that the temperature does not exceed a predetermined temperature. Therefore, even when the resistor is inserted into the electric circuit of the lamp, it is possible to suppress the decrease in the resistance value of the light emitting semiconductor element and prevent the control unit of the vehicle from making an erroneous determination. As a result, it is possible to suppress the occurrence of a high flasher phenomenon due to a control abnormality of the lamp and a malfunction such as a warning display. Further, the cover portion is arranged so as to cover the light emitting portion of the light emitting semiconductor element from the outside in the light emitting direction, and is configured to have a transmission filter film for reducing the amount of light emitted from the light emitting portion. Therefore, even when a general light emitting semiconductor element such as a popular version is used, it is possible to suppress excessive brightness, reduce costs, and ensure vehicle safety.
According to the configuration (2), since a plurality of light emitting semiconductor elements are included and the fan is electrically connected in parallel to any of the light emitting semiconductor elements, it is more efficient for the vehicle control unit to make an erroneous determination. It can be prevented more reliably.
According to the configuration of (3) above, since the cover portion is provided so as to integrally cover each of the light emitting portions of the light emitting semiconductor element, the number of parts is reduced to reduce the cost and the overall size of the lamp. Can be done.
According to the configuration of (4) above, the cover portion is formed in a cylindrical shape, and each of the light emitting semiconductor elements is arranged inside the cover portion. Therefore, the entire lamp is further miniaturized and the strength of the lamp is also increased. Can be enhanced.

本考案によれば、灯具の電気回路に抵抗器を挿入した場合でも発光半導体素子の抵抗値が減少するのを抑制して、車両の制御部が誤判定するのを防止するとともに、普及版などの一般的の発光半導体素子を用いた場合でも過度に明るくなることを抑制することができる。 According to the present invention, even when a resistor is inserted into the electric circuit of the lamp, the resistance value of the light emitting semiconductor element is suppressed from decreasing to prevent the control unit of the vehicle from making an erroneous judgment, and a popular version or the like is used. Even when the general light emitting semiconductor element of the above is used, it is possible to suppress excessive brightening.

以上、本考案について簡潔に説明した。さらに、以下に説明される考案を実施するための形態(以下「実施形態」という。)を添付の図面を参照して通読することにより、本考案の詳細はさらに明確化されるだろう。 The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments described below (hereinafter referred to as "embodiments") with reference to the accompanying drawings.

図1は、本考案の実施形態に係る灯具を説明する斜視図である。FIG. 1 is a perspective view illustrating a lamp according to an embodiment of the present invention. 図2は、図1に示す灯具の上面図である。FIG. 2 is a top view of the lamp shown in FIG. 図3は、図2に示すA−A断面図である。FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. 図4は、図2に示すB−B断面図である。FIG. 4 is a cross-sectional view taken along the line BB shown in FIG. 図5は、図1に示す灯具の電気回路の構成を示す回路図である。FIG. 5 is a circuit diagram showing a configuration of an electric circuit of the lamp shown in FIG.

本考案に係る灯具(以下「LED灯具」ともいう。)に関する実施形態について、各図を参照しながら以下に説明する。 An embodiment of a lamp according to the present invention (hereinafter, also referred to as “LED lamp”) will be described below with reference to each figure.

ただし、必要以上に詳細な説明は省略する場合がある。例えば、すでによく知られた事項の詳細説明や実質的に同一の構成に対する重複説明を省略する場合がある。これは、以下の説明が不必要に冗長になるのを避け、当業者の理解を容易にするためである。
なお、添付図面および以下の説明は、当業者が本開示を十分に理解するために提供されるのであって、これらにより実用新案登録請求の範囲に記載の主題を限定することは意図されていない。また、添付図面のそれぞれは符号の向きに従って参照するものとする。
However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters and duplicate explanations for substantially the same configuration may be omitted. This is to avoid unnecessary redundancy of the following description and to facilitate the understanding of those skilled in the art.
It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims of utility model registration. .. In addition, each of the attached drawings shall be referred to according to the orientation of the reference numerals.

[LED灯具の物理的構成について]
まず図1〜図4を参照して、本考案に係る実施形態の灯具10(以下「LED灯具」ともいう。)の物理的構成について説明する。図1は、本考案の実施形態に係るLED灯具10を説明する斜視図である。図2は、図1に示すLED灯具10の上面図である。図3は、図2に示すA−A断面図である。図4は、図2に示すB−B断面図である。
なお、図3は後述する発光半導体素子11を含まない断面であり、図4は発光半導体素子11を含む断面である。
[Physical configuration of LED lamps]
First, with reference to FIGS. 1 to 4, the physical configuration of the lamp 10 (hereinafter, also referred to as “LED lamp”) of the embodiment according to the present invention will be described. FIG. 1 is a perspective view illustrating an LED lamp 10 according to an embodiment of the present invention. FIG. 2 is a top view of the LED lamp 10 shown in FIG. FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. FIG. 4 is a cross-sectional view taken along the line BB shown in FIG.
Note that FIG. 3 is a cross section not including the light emitting semiconductor element 11 described later, and FIG. 4 is a cross section including the light emitting semiconductor element 11.

図1〜図4に示すように、本実施形態に係るLED灯具10は、複数(本実施形態では18個)の発光半導体素子11(以下「LED素子11」ともいう。)と、筐体部12と、ファン21と、ファン保持部22と、を含んで構成される。 As shown in FIGS. 1 to 4, the LED lamp 10 according to the present embodiment includes a plurality of (18 in this embodiment) light emitting semiconductor elements 11 (hereinafter, also referred to as “LED element 11”) and a housing portion. 12, a fan 21, and a fan holding portion 22 are included.

複数のLED素子11は、外方に光を放射する発光部(不図示)を有する。また、複数のLED素子11は、3つで1組(以下この組を「ユニット」ともいう。)を構成しており、本実施形態ではLED素子11は18個用いられるので、合計、6組のユニット11Aが組成される。1つのユニット11Aにつき3個のLED素子11は、互いに隣接して直線状に(図中で上下方向に沿って)並設される。LED素子11のユニット11Aのそれぞれでは通電されるとその3つのLED素子11が同時に点灯する。 The plurality of LED elements 11 have a light emitting unit (not shown) that emits light to the outside. Further, the plurality of LED elements 11 form one set of three (hereinafter, this set is also referred to as a "unit"), and since 18 LED elements 11 are used in this embodiment, a total of six sets. Unit 11A is composed. Three LED elements 11 for one unit 11A are arranged side by side in a straight line (along the vertical direction in the drawing) adjacent to each other. When each of the units 11A of the LED element 11 is energized, the three LED elements 11 are turned on at the same time.

筐体部12は、金属製部材(例えばアルミホイール製部材)からなり全体的に略円筒状に形成される。また、筐体部12は、LED固定部13と、カバー部18と、ベース部20と、を有して構成される。 The housing portion 12 is made of a metal member (for example, a member made of an aluminum wheel) and is formed in a substantially cylindrical shape as a whole. Further, the housing portion 12 includes an LED fixing portion 13, a cover portion 18, and a base portion 20.

LED固定部13は、有底の略円筒状に形成されており、先端部に開口部14を有する。LED固定部13の外周面には周方向に亘(わた)って段部15が設けられる。この段部15により、LED固定部13の外周面には、大径部16および小径部17が設けられる。LED固定部13の小径部17の外周面に、複数のLED素子11のユニット11Aのそれぞれが周方向で略等間隔で並列して貼設または埋設される。つまり、複数のLED素子11のそれぞれは、LED固定部13の表面に固設されており、通電時にLED固定部13(LED灯具10の本体)の径方向外側に向けて放射して発光する。 The LED fixing portion 13 is formed in a substantially cylindrical shape with a bottom, and has an opening 14 at the tip portion. A step portion 15 is provided on the outer peripheral surface of the LED fixing portion 13 so as to extend in the circumferential direction. The stepped portion 15 provides a large diameter portion 16 and a small diameter portion 17 on the outer peripheral surface of the LED fixing portion 13. Each of the units 11A of the plurality of LED elements 11 is attached or embedded in parallel at substantially equal intervals in the circumferential direction on the outer peripheral surface of the small diameter portion 17 of the LED fixing portion 13. That is, each of the plurality of LED elements 11 is fixed to the surface of the LED fixing portion 13, and emits light by radiating toward the outside in the radial direction of the LED fixing portion 13 (the main body of the LED lamp 10) when energized.

カバー部18は、合成樹脂部材からなり略円筒状に形成される。また、カバー部18の内径がLED固定部13の小径部17の外径よりも若干大きく設けられる。カバー部18の内側にLED固定部13の小径部17が、複数のLED素子11がその表面で固設された状態で挿入される。この挿入により、カバー部18の一端面がLED固定部13の段部15の端面に当接し、その当接された状態でカバー部18がLED固定部13に取付固定される。つまり、カバー部18はLED素子11の発光部のそれぞれをその発光方向外側から一体部に覆うように設けられる。また、LED素子11のそれぞれは、カバー部18の内周面と、LED固定部13の小径部17の外周面と、の間、換言すればカバー部18の内部に配置されることになる。 The cover portion 18 is made of a synthetic resin member and is formed in a substantially cylindrical shape. Further, the inner diameter of the cover portion 18 is provided to be slightly larger than the outer diameter of the small diameter portion 17 of the LED fixing portion 13. A small diameter portion 17 of the LED fixing portion 13 is inserted inside the cover portion 18 in a state where a plurality of LED elements 11 are fixed on the surface thereof. By this insertion, one end surface of the cover portion 18 comes into contact with the end surface of the step portion 15 of the LED fixing portion 13, and the cover portion 18 is attached and fixed to the LED fixing portion 13 in the abutted state. That is, the cover portion 18 is provided so as to integrally cover each of the light emitting portions of the LED element 11 from the outside in the light emitting direction. Further, each of the LED elements 11 is arranged between the inner peripheral surface of the cover portion 18 and the outer peripheral surface of the small diameter portion 17 of the LED fixing portion 13, in other words, inside the cover portion 18.

また、カバー部18の少なくとも表面には、LED素子11の発光部から発光される光量を減少させた状態で発光部の光を透過させる透過フィルタ膜部19が形成されており、そのため、例えばカバー部18は、その外観は白濁して設けられる。それにより、LED灯具10のLED素子11として、普及版のものを用いた場合でも過度に明るくなることを抑制して、コスト削減および車両安全の確保を図ることが可能となる。 Further, on at least the surface of the cover portion 18, a transmission filter film portion 19 that transmits the light of the light emitting portion in a state where the amount of light emitted from the light emitting portion of the LED element 11 is reduced is formed. The appearance of the portion 18 is clouded. As a result, even when a popular version of the LED element 11 of the LED lamp 10 is used, it is possible to suppress excessive brightness, reduce costs, and ensure vehicle safety.

なお、本実施形態では、透過フィルタ膜部19は、例えばカバー部18の外周面を所定の塗料素材でコーティングするか、またはカバー部18の合成樹脂の材料に同様な素材を混合した上で射出成形などしてカバー部18と一体に設けられるが、これに限定されない。透過フィルタ膜部19としては、光量を減少させてその光を透過可能なフィルタ機能を有するものであれば適宜種々の部材または材料を採用することが可能である。 In the present embodiment, the transmission filter film portion 19 is injected after, for example, the outer peripheral surface of the cover portion 18 is coated with a predetermined paint material, or a similar material is mixed with the synthetic resin material of the cover portion 18. It is provided integrally with the cover portion 18 by molding or the like, but the present invention is not limited to this. As the transmission filter film unit 19, various members or materials can be appropriately adopted as long as it has a filter function capable of reducing the amount of light and transmitting the light.

ベース部20は、LED固定部13に一体に設けられ、板状に形成される。ベース部20は、その先端部でLED固定部13の基端部に連結する。ベース部20の先端部の幅寸法は、LED固定部13の外周形状と略一致して設けられる。
なお、LED固定部13の外径は、取り付ける車両における正規品(従来品)のLED灯具の大きさにより規定される。
The base portion 20 is integrally provided with the LED fixing portion 13 and is formed in a plate shape. The base portion 20 is connected to the base end portion of the LED fixing portion 13 at the tip end portion thereof. The width dimension of the tip portion of the base portion 20 is provided so as to substantially match the outer peripheral shape of the LED fixing portion 13.
The outer diameter of the LED fixing portion 13 is defined by the size of a genuine (conventional) LED lamp in the vehicle to be mounted.

ファン21は、抵抗器としてのモータ(不図示)と、モータの回転軸に固着されるプロペラ(不図示)と、を含んで、送風可能に構成される。このファン21は、金具(不図示)を用いてファン保持部22の貫通孔23(後述)の内部に配置される。
なお、本実施形態では、ファン21は市販品ものが用いられるが、それに限定されず、本実施形態のLED灯具10専用に設計されてもよい。
The fan 21 includes a motor as a resistor (not shown) and a propeller (not shown) fixed to the rotating shaft of the motor, and is configured to be able to blow air. The fan 21 is arranged inside a through hole 23 (described later) of the fan holding portion 22 by using a metal fitting (not shown).
In the present embodiment, a commercially available fan 21 is used, but the fan 21 is not limited to this, and may be designed exclusively for the LED lamp 10 of the present embodiment.

ファン保持部22は、金属製部材(例えばアルミホイール製部材)からなり、略円筒状に形成されてその軸方向に(図中で上下方向に沿って)延在する貫通孔23を有する。また、LED固定部13と同様にファン保持部22の外周面には周方向に亘って段部24が設けられ、ファン保持部22は大径部25および小径部26を有する。ファン保持部22の小径部26の外径は、LED固定部13の内径より小さく設けられる。ファン保持部22は、その小径部26でLED固定部13の内側にその開口部14から挿嵌されて取り付けられる。 The fan holding portion 22 is made of a metal member (for example, a member made of an aluminum wheel), has a substantially cylindrical shape, and has a through hole 23 extending in the axial direction (along the vertical direction in the drawing). Further, similarly to the LED fixing portion 13, a step portion 24 is provided on the outer peripheral surface of the fan holding portion 22 in the circumferential direction, and the fan holding portion 22 has a large diameter portion 25 and a small diameter portion 26. The outer diameter of the small diameter portion 26 of the fan holding portion 22 is provided to be smaller than the inner diameter of the LED fixing portion 13. The fan holding portion 22 is fitted and attached to the inside of the LED fixing portion 13 by the small diameter portion 26 from the opening portion 14.

ファン保持部22の貫通孔23の内周壁には保持金具(不図示)が配設される。この保持金具が、ファン保持部22の貫通孔23の上側においてその内側にファン21を、その貫通孔23とファン21とに間隙を在して保持する。この間隙により、貫通孔23に送られる空気が断熱材として機能することが可能となる。また、ファン保持部22は、その小径部26がLED固定部13の内部に挿嵌された状態で、連結金具によってLED固定部13に固着される。
なお、この連結金具27での固着により、カバー部18はLED固定部13から離脱不能に固定されることになる。
A holding metal fitting (not shown) is provided on the inner peripheral wall of the through hole 23 of the fan holding portion 22. The holding metal fitting holds the fan 21 inside the through hole 23 of the fan holding portion 22 with a gap between the through hole 23 and the fan 21. This gap allows the air sent to the through hole 23 to function as a heat insulating material. Further, the fan holding portion 22 is fixed to the LED fixing portion 13 by the connecting metal fitting in a state where the small diameter portion 26 is inserted inside the LED fixing portion 13.
The cover portion 18 is fixed to the LED fixing portion 13 inseparably due to the fixing by the connecting metal fitting 27.

このように保持されたファン21が稼働することで、ファン保持部22の貫通孔23を通じてLED固定部13の内部に向けて空気が送られ、その結果、複数のLED素子11のそれぞれが冷却される。このとき、ファン21は後述するLED灯具10の電気回路において抵抗器として機能するが、単に発熱するのではなく、供給された電力によってLED素子11の温度が所定の温度以上とならないようにLED素子11のそれぞれを冷却する。そのため、長時間に亘ってLED灯具10を使用した場合でも、LED素子11の抵抗値が減少するのを抑制して、車両の制御部が誤判定するのを防止することが可能となる。 By operating the fan 21 held in this way, air is sent toward the inside of the LED fixing portion 13 through the through hole 23 of the fan holding portion 22, and as a result, each of the plurality of LED elements 11 is cooled. LED. At this time, the fan 21 functions as a resistor in the electric circuit of the LED lamp 10 described later, but the LED element does not simply generate heat so that the temperature of the LED element 11 does not exceed a predetermined temperature due to the supplied electric power. Cool each of the eleven. Therefore, even when the LED lamp 10 is used for a long time, it is possible to suppress the decrease in the resistance value of the LED element 11 and prevent the control unit of the vehicle from making an erroneous determination.

[LED灯具の電気回路の構成について]
次に図5を参照して、LED灯具10の電気回路の構成について説明する。図5は、図1に示すLED灯具10の電気回路の構成を示す回路図である。
[About the configuration of the electric circuit of LED lamps]
Next, the configuration of the electric circuit of the LED lamp 10 will be described with reference to FIG. FIG. 5 is a circuit diagram showing a configuration of an electric circuit of the LED lamp 10 shown in FIG.

図5に示すように、電気回路は、電源として定電流装置30を有し、負荷として、1つのファン21と、複数(本実施形態では6つ)の抵抗素子31と、複数(本実施形態では6組)のLED素子11のユニット11Aと、を有する。 As shown in FIG. 5, the electric circuit has a constant current device 30 as a power source, and as a load, one fan 21, a plurality of (six in the present embodiment) resistance elements 31, and a plurality (the present embodiment). The unit 11A of the LED element 11 (6 sets) and the unit 11A.

定電流装置30は、定電流ダイオード(不図示)を並列接続し、LED素子11およびファン21に一定電流を安定的に供給する。
なお、定電流装置30は、LED固定部13の内部に収納される(図4参照)。
The constant current device 30 connects a constant current diode (not shown) in parallel and stably supplies a constant current to the LED element 11 and the fan 21.
The constant current device 30 is housed inside the LED fixing portion 13 (see FIG. 4).

複数のLED素子11のユニット11Aのそれぞれに、複数の抵抗素子31のそれぞれが電気的に直列接続される。この1つのLED素子11のユニット11Aおよび1つの抵抗素子31で1つのLED素子11−抵抗のユニット31Aを組成し、これら6組のLED素子11−抵抗のユニット31Aのそれぞれが、互いに並列に電気的に接続する。さらに、これら6組のLED素子11−抵抗のユニット31Aに対してファン21も同様に電気的に並列接続される。これら負荷としての、LED素子11、抵抗素子31およびファン21は、定電流装置30に接続されており、それにより、LED灯具10として1つの電気回路が構成される。 Each of the plurality of resistance elements 31 is electrically connected in series to each of the units 11A of the plurality of LED elements 11. The unit 11A of the one LED element 11 and the unit 31A of the one resistance element 31 form one unit 31A of the LED element 11-resistance, and each of these six sets of the unit 31A of the LED element 11-resistance is electrically operated in parallel with each other. Connect to. Further, the fan 21 is also electrically connected in parallel to the unit 31A of these 6 sets of LED elements 11-resistors. The LED element 11, the resistance element 31, and the fan 21 as these loads are connected to the constant current device 30, thereby forming one electric circuit as the LED lamp 10.

車載バッテリー(不図示)から供給される電流は、定電流装置30に流れ、その後、ファン21、LED素子11、抵抗素子31のそれぞれに電流が流れる。その後、電流は、定電流装置30を経由してバッテリーに戻る。 The current supplied from the vehicle-mounted battery (not shown) flows through the constant current device 30, and then the current flows through each of the fan 21, the LED element 11, and the resistance element 31. After that, the current returns to the battery via the constant current device 30.

[LED灯具の利点について]
以上説明したように本実施形態によれば、ファン21はLED素子11(発光半導体素子の一例)に電気的に並列接続され、通電時にLED素子11に向けて送風する。ファン21は電気的に抵抗器として機能するとともに、LED素子11の温度が所定の温度以上とならないように冷却する。このため、LED灯具10の電気回路に抵抗器を挿入した場合でもLED素子11の抵抗値が減少するのを抑制して、車両の制御部が誤判定するのを防止することができる。これにより、LED灯具10の制御異常に起因するハイフラッシャー現象およびワーニング表示などの誤作動の発生を抑制することができる。また、カバー部18は、LED素子11の発光部をその発光方向外側から覆うように配置されており、発光部から発光される光量を減少させた状態で発光部の光を透過させる透過フィルタ膜を有して構成される。このため、普及版などの一般的なLED素子11を用いた場合でも過度に明るくなることを抑制して、コスト削減および車両安全の確保を図ることができる。
[Advantages of LED lamps]
As described above, according to the present embodiment, the fan 21 is electrically connected in parallel to the LED element 11 (an example of a light emitting semiconductor element) and blows air toward the LED element 11 when energized. The fan 21 electrically functions as a resistor and cools the LED element 11 so that the temperature does not exceed a predetermined temperature. Therefore, even when a resistor is inserted into the electric circuit of the LED lamp 10, it is possible to suppress a decrease in the resistance value of the LED element 11 and prevent the vehicle control unit from making an erroneous determination. As a result, it is possible to suppress the occurrence of a high flasher phenomenon due to a control abnormality of the LED lamp 10 and a malfunction such as a warning display. Further, the cover portion 18 is arranged so as to cover the light emitting portion of the LED element 11 from the outside in the light emitting direction, and is a transmission filter film that transmits the light of the light emitting portion in a state where the amount of light emitted from the light emitting portion is reduced. Is composed of. Therefore, even when a general LED element 11 such as a popular version is used, it is possible to suppress excessive brightness, reduce costs, and ensure vehicle safety.

また本実施形態によれば、LED素子11(発光半導体素子の一例)を複数含み、ファン21は、LED素子11のいずれにも電気的に並列接続されるため、車両の制御部が誤判定するのをより効率良くまたはより確実に防止することができる。 Further, according to the present embodiment, a plurality of LED elements 11 (an example of a light emitting semiconductor element) are included, and the fan 21 is electrically connected in parallel to any of the LED elements 11, so that the vehicle control unit makes an erroneous determination. Can be prevented more efficiently or more reliably.

また本実施形態によれば、カバー部18は、LED素子11(発光半導体素子の一例)の発光部のそれぞれを一体的に覆うように設けられるため、部品点数を少なくしてコスト削減およびLED灯具10全体の小型化を図ることができる。 Further, according to the present embodiment, since the cover portion 18 is provided so as to integrally cover each of the light emitting portions of the LED element 11 (an example of the light emitting semiconductor element), the number of parts is reduced to reduce the cost and the LED lamp. 10 The overall size can be reduced.

また本実施形態によれば、カバー部18は円筒状に形成され、LED素子11(発光半導体素子の一例)のそれぞれは、カバー部18の内部に配置されるため、LED灯具10全体をより一層小型化するとともに、LED灯具10の強度も高めることができる。 Further, according to the present embodiment, the cover portion 18 is formed in a cylindrical shape, and each of the LED elements 11 (an example of a light emitting semiconductor element) is arranged inside the cover portion 18, so that the entire LED lamp 10 can be further covered. Along with the miniaturization, the strength of the LED lamp 10 can be increased.

以上、図面を参照しながら具体的実施形態について説明したが、本開示はかかる例に限定されないことはいうまでもない。当業者であれば、特許請求の範囲に記載された範疇内において、各種の変更例、修正例、置換例、付加例、削除例、均等例に想到し得ることは明らかであり、それらについても当然に本開示の技術的範囲に属するものと了解される。また、考案の趣旨を逸脱しない範囲において、上述した実施形態における各構成要素を任意に組み合わせてもよい。 Although the specific embodiments have been described above with reference to the drawings, it goes without saying that the present disclosure is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications, modifications, substitutions, additions, deletions, and equality within the scope of the claims. It is understood that it naturally belongs to the technical scope of the present disclosure. Further, each component in the above-described embodiment may be arbitrarily combined as long as the purpose of the invention is not deviated.

灯具の電気回路に抵抗器を挿入した場合でも発光半導体素子の抵抗値が減少するのを抑制して、車両の制御部が誤判定するのを防止するとともに、普及版などの一般的の発光半導体素子を用いた場合でも過度に明るくなることを抑制することができる灯具として有用である。 Even when a resistor is inserted in the electric circuit of the lamp, the resistance value of the light emitting semiconductor element is suppressed from decreasing to prevent the vehicle control unit from making an erroneous judgment, and a general light emitting semiconductor such as a popular version is used. It is useful as a lamp that can suppress excessive brightness even when an element is used.

10 :LED灯具(灯具)
11 :LED素子(発光半導体素子)
11A :ユニット
12 :筐体部
13 :LED固定部
14 :開口部
15 :段部
16 :大径部
17 :小径部
18 :カバー部
19 :透過フィルタ膜部
20 :ベース部
21 :ファン
22 :ファン保持部
23 :貫通孔
24 :段部
25 :大径部
26 :小径部
27 :連結金具
30 :定電流装置
31 :抵抗素子
31A :ユニット
10: LED lamp (lamp)
11: LED element (light emitting semiconductor element)
11A: Unit 12: Housing 13: LED fixing 14: Opening 15: Step 16: Large diameter 17: Small diameter 18: Cover 19: Transmission filter film 20: Base 21: Fan 22: Fan Holding part 23: Through hole 24: Step part 25: Large diameter part 26: Small diameter part 27: Connecting metal fitting 30: Constant current device 31: Resistance element 31A: Unit

Claims (4)

発光部を有する発光半導体素子と、
前記発光半導体素子に対し電気的に並列接続され、通電時に前記発光半導体素子に向けて送風するファンと、
前記発光部をその発光方向外側から覆うように配置されるカバー部と、を含み、
前記カバー部は、前記発光部から発光される光量を減少させた状態で前記発光部の光を透過させる透過フィルタ膜部を有する灯具。
A light emitting semiconductor element having a light emitting part and
A fan that is electrically connected in parallel to the light emitting semiconductor element and blows air toward the light emitting semiconductor element when energized.
A cover portion arranged so as to cover the light emitting portion from the outside in the light emitting direction is included.
The cover portion is a lamp having a transmission filter film portion that transmits the light of the light emitting portion in a state where the amount of light emitted from the light emitting portion is reduced.
前記発光半導体素子を複数含み、
前記ファンは、前記発光半導体素子のいずれにも電気的に並列接続される請求項1に記載の灯具。
Including a plurality of the light emitting semiconductor elements
The lamp according to claim 1, wherein the fan is electrically connected in parallel to any of the light emitting semiconductor elements.
前記カバー部は、前記発光半導体素子の前記発光部のそれぞれを一体的に覆うように設けられる請求項2に記載の灯具。 The lamp according to claim 2, wherein the cover portion is provided so as to integrally cover each of the light emitting portions of the light emitting semiconductor element. 前記カバー部は円筒状に形成され、
前記発光半導体素子のそれぞれは、前記カバー部の内部に配置される請求項3に記載の灯具。
The cover portion is formed in a cylindrical shape.
The lamp according to claim 3, wherein each of the light emitting semiconductor elements is arranged inside the cover portion.
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