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JP7454870B2 - Light equipment - Google Patents

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JP7454870B2
JP7454870B2 JP2022068604A JP2022068604A JP7454870B2 JP 7454870 B2 JP7454870 B2 JP 7454870B2 JP 2022068604 A JP2022068604 A JP 2022068604A JP 2022068604 A JP2022068604 A JP 2022068604A JP 7454870 B2 JP7454870 B2 JP 7454870B2
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晋士 石田
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Description

本発明は、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 or 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。 2. Description of the Related Art In vehicles such as automobiles and motorcycles, a pair of left and right turn signals are disposed on both left and right sides of the vehicle. Each of the pair of left and right turn signals is equipped with a bulb (an example of a lighting device), and when the bulb flashes, the pair of left and right turn signals indicates the direction of travel of the vehicle, such as when turning left or right. Notify pedestrians, etc.

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。
If one of the left and right turn signal bulbs goes out, the control device installed in the vehicle detects that no current is flowing through that one bulb, and speeds up the flashing cycle of the other bulb. . This state or phenomenon is called a high flasher state or high flasher phenomenon, and this high flasher state allows the driver of the vehicle to recognize that the valve has turned off.
In addition to turn signal lights, tail lights and back lights also display a warning (indicator light indicating an abnormality) on the instrument panel when the bulb burns out.

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, with the spread of light-emitting semiconductor devices (LEDs: Light Emitting Diodes, hereinafter also referred to as "LED devices"), LED devices are being widely adopted in vehicle headlights and lighting devices such as turn signals and other signal lights. It became so. Additionally, in lighting equipment that includes LED elements (hereinafter also referred to as "LED lighting equipment"), the power consumption rating when the LED element is lit is often set to be the same as that of a genuine/standard turn signal bulb. .

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, and the power consumption of the LED element is small compared to a genuine turn signal bulb, so the power consumption rating described above may not be met. Therefore, the vehicle control device may erroneously determine that the LED lamp has failed and control the LED lamp to enter the high flasher state. Similarly, tail lamps and back lamps other than turn signal lights may display a warning (indicator light indicating an abnormality) if their power consumption differs from the genuine bulb.

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 including a plurality of LED elements, a plurality of switch elements, a plurality of resistors, and a control section is known (see, for example, Patent Document 1). In the LED lighting device of Patent Document 1, a plurality of switch elements are provided corresponding to a 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 elements and the switch element, and are supplied with power when receiving a command to start energization. The control unit sequentially lights up each of the plurality of LED elements, turns on the switch element to flow current through the resistor and the switch element, and turns off the switch element prior to lighting the LED elements. current to flow through the resistor and LED element.

特許第5947964号公報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 lighting device of Patent Document 1 includes a resistor in its electric circuit to increase power consumption and prevent the above-mentioned erroneous determination by 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 light fixture cannot be increased sufficiently, causing a misjudgment by the control device. There is a possibility that it will lead to. Furthermore, the amount of light emitted by the light emitting part of the generally widespread (hereinafter also referred to as "popular version") LED element is much larger than that of a standard turn signal bulb with the same rating. In other words, when attempting to use an LED lamp in place of a conventional lamp, the LED lamp tends to become excessively bright. The LED lighting device of Patent Document 1 mentioned above had room for improvement in these points.

本発明は、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 the decrease in the resistance value of the light emitting semiconductor element even when a resistor is inserted into the electric circuit of the lamp, thereby preventing the vehicle control unit from making an erroneous judgment. To provide a lamp that can prevent excessive brightness even when a general light emitting semiconductor element such as a popular version is used.

本発明の上述した目的は、下記の構成により達成される。
(1)車両に搭載される灯具であって、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し、前記透過フィルタ膜部は、前記カバー部の外周面に光量を減少させる塗料素材でコーティング、又は、前記カバー部の材料に前記塗料素材を混合したうえで射出成型して前記カバー部と一体化、することにより設けられる灯具。
(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 objects of the present invention are achieved by the following configuration.
(1) A lamp mounted on a vehicle, including a light-emitting semiconductor element having a light-emitting section, a fan electrically connected in parallel to the light-emitting semiconductor element and blowing air toward the light-emitting semiconductor element when energized; a cover section disposed to cover the light emitting section from the outside in the light emitting direction, the cover section including a transmission filter that transmits light from the light emitting section while reducing the amount of light emitted from the light emitting section. The transmission filter film part has a membrane part, and the transmission filter film part is formed by coating the outer peripheral surface of the cover part with a paint material that reduces the amount of light, or by injection molding the mixture of the paint material and the material of the cover part. A light fixture that is installed by being integrated with the cover part .
(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 section is provided so as to integrally cover each of the light emitting sections 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 configuration (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 thereof does not exceed a predetermined temperature. Therefore, even when a resistor is inserted into the electric circuit of the lamp, it is possible to suppress a 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 malfunctions such as a high flasher phenomenon and a warning display due to an abnormality in the control of the lamp. Further, the cover section is arranged to cover the light emitting section of the light emitting semiconductor element from the outside in the light emitting direction, and is configured to include a transmission filter film that reduces the amount of light emitted from the light emitting section. Therefore, even when a general light-emitting semiconductor element such as a popular version is used, excessive brightness can be suppressed, and costs can be reduced and vehicle safety can be ensured.
According to the configuration (2) above, a plurality of light emitting semiconductor elements are included, and the fan is electrically connected in parallel to each of the light emitting semiconductor elements, so that the control unit of the vehicle can more efficiently or efficiently prevent erroneous determinations. This can be prevented more reliably.
According to the configuration (3) above, the cover part is provided so as to integrally cover each of the light emitting parts of the light emitting semiconductor element, so that the number of parts can be reduced to reduce costs and downsize the entire lamp. I can do it.
According to the configuration (4) above, the cover part is formed in a cylindrical shape, and each of the light emitting semiconductor elements is arranged inside the cover part, so that the overall size of the lamp can be further reduced, and the strength of the lamp can also be increased. can be increased.

本発明によれば、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 a lamp, the resistance value of the light emitting semiconductor element is suppressed from decreasing, thereby preventing a vehicle control unit from making an erroneous determination. Even when a general light-emitting semiconductor element is used, excessive brightness can be suppressed.

以上、本発明について簡潔に説明した。さらに、以下に説明される発明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、本発明の詳細はさらに明確化されるだろう。 The present invention has been briefly described above. Furthermore, the details of the present invention will become clearer by reading the detailed description of the invention (hereinafter referred to as "embodiments") described below with reference to the accompanying drawings.

図1は、本発明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. 1. 図3は、図2に示すA-A断面図である。FIG. 3 is a sectional view taken along 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 sectional view taken along 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 the configuration of an electric circuit of the lamp shown in FIG. 1.

本発明に係る灯具(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。 Embodiments of a lamp (hereinafter also referred to as "LED lamp") according to the present invention 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、これらにより特許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 well-known matters or redundant explanations of substantially the same configurations may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art.
The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter recited in the claims . Further, each of the accompanying drawings shall be referred to according to the direction of the reference numeral.

[LED灯具の物理的構成について]
まず図1~図4を参照して、本発明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、本発明の実施形態に係る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。
[About the physical configuration of LED lighting]
First, with reference to FIGS. 1 to 4, the physical configuration of a lamp 10 (hereinafter also referred to as "LED lamp") according to an embodiment of 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. 1. FIG. 3 is a sectional view taken along line AA shown in FIG. FIG. 4 is a sectional view taken along line BB shown in FIG.
Note that FIG. 3 is a cross section that does not include the light emitting semiconductor element 11, which will be described later, and FIG. 4 is a cross section that includes 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 lighting device 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 elements 11"), and a housing part. 12, a fan 21, and a fan holding section 22.

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 part (not shown) that emits light outward. Further, three of the plurality of LED elements 11 constitute one set (hereinafter, this set is also referred to as a "unit"), and in this embodiment, 18 LED elements 11 are used, so there are 6 sets in total. A unit 11A of is composed. Three LED elements 11 per unit 11A are arranged adjacent to each other in a straight line (along the vertical direction in the figure). When each of the units 11A of the LED elements 11 is energized, the three LED elements 11 light up 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, an aluminum wheel member) and is generally formed into a substantially cylindrical shape. Furthermore, the housing section 12 includes an LED fixing section 13, a cover section 18, and a base section 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 part 13 is formed in a substantially cylindrical shape with a bottom, and has an opening 14 at the tip. A stepped portion 15 is provided on the outer peripheral surface of the LED fixing portion 13 in the circumferential direction. This 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 . On the outer circumferential surface of the small diameter portion 17 of the LED fixing portion 13, the units 11A of the plurality of LED elements 11 are attached or embedded in parallel in the circumferential direction at approximately equal intervals. That is, each of the plurality of LED elements 11 is fixedly installed on the surface of the LED fixing part 13, and emits light by emitting light toward the outside in the radial direction of the LED fixing part 13 (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 has a substantially cylindrical shape. Further, the inner diameter of the cover portion 18 is slightly larger than the outer diameter of the small diameter portion 17 of the LED fixing portion 13. The small diameter part 17 of the LED fixing part 13 is inserted inside the cover part 18 with the plurality of LED elements 11 fixed on its surface. By this insertion, one end surface of the cover section 18 comes into contact with the end surface of the stepped section 15 of the LED fixing section 13, and the cover section 18 is attached and fixed to the LED fixing section 13 in this abutted state. That is, the cover part 18 is provided so as to integrally cover each of the light emitting parts 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 part 18 and the outer peripheral surface of the small diameter part 17 of the LED fixing part 13, in other words, inside the cover part 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, a transmission filter film part 19 is formed on at least the surface of the cover part 18, and transmits light from the light emitting part while reducing the amount of light emitted from the light emitting part of the LED element 11. The portion 18 is provided with a cloudy appearance. Thereby, even when a popular version is used as the LED element 11 of the LED lamp 10, excessive brightness can be suppressed, and it is possible to 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 this embodiment, the transmission filter membrane part 19 is formed by, for example, coating the outer peripheral surface of the cover part 18 with a predetermined paint material, or mixing a similar material with the synthetic resin material of the cover part 18 and then injecting the mixture. Although it is provided integrally with the cover portion 18 by molding or the like, the present invention is not limited thereto. As the transmission filter film section 19, various members or materials can be suitably employed as long as they have a filter function that can reduce the amount of light and transmit 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 provided integrally with the LED fixing portion 13 and is formed into a plate shape. The base portion 20 is connected to the base end portion of the LED fixing portion 13 at its distal end portion. The width dimension of the tip end of the base portion 20 is provided to substantially match the outer circumferential shape of the LED fixing portion 13 .
Note that the outer diameter of the LED fixing portion 13 is determined by the size of a genuine (conventional) LED lamp in the vehicle to which it is attached.

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 (not shown) serving as a resistor and a propeller (not shown) fixed to a rotating shaft of the motor, and is configured to be able to blow air. This fan 21 is placed inside a through hole 23 (described later) of the fan holding portion 22 using a metal fitting (not shown).
Note that in this embodiment, a commercially available fan 21 is used, but the fan 21 is not limited thereto, and may be designed specifically for the LED lamp 10 of this 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 part 22 is made of a metal member (for example, an aluminum wheel member), and has a through hole 23 formed in a substantially cylindrical shape and extending in the axial direction (along the vertical direction in the figure). Further, like the LED fixing part 13 , a stepped part 24 is provided on the outer peripheral surface of the fan holding part 22 in the circumferential direction, and the fan holding part 22 has a large diameter part 25 and a small diameter part 26 . The outer diameter of the small diameter portion 26 of the fan holding portion 22 is set smaller than the inner diameter of the LED fixing portion 13 . The fan holding part 22 is attached by fitting the small diameter part 26 into the inside of the LED fixing part 13 from the opening part 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 fitting (not shown) is provided on the inner circumferential wall of the through hole 23 of the fan holding part 22 . This holding metal fitting holds the fan 21 above and inside the through hole 23 of the fan holding part 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 insulator. Further, the fan holding part 22 is fixed to the LED fixing part 13 by a connecting fitting with the small diameter part 26 thereof being inserted into the inside of the LED fixing part 13.
Note that by fixing with this connecting fitting 27, the cover part 18 is fixed to the LED fixing part 13 in a manner that cannot be removed.

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。 When the fan 21 held in this manner operates, air is sent toward the inside of the LED fixing part 13 through the through hole 23 of the fan holding part 22, and as a result, each of the plurality of LED elements 11 is cooled. Ru. At this time, the fan 21 functions as a resistor in the electric circuit of the LED lighting device 10, which will be described later. However, rather than simply generating heat, the fan 21 acts as a resistor to prevent the temperature of the LED element 11 from rising above a predetermined temperature due to the supplied power. 11. Therefore, even when the LED lamp 10 is used for a long time, it is possible to suppress a 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 lighting equipment]
Next, with reference to FIG. 5, the configuration of the electric circuit of the LED lamp 10 will be described. FIG. 5 is a circuit diagram showing the configuration of an electric circuit of the LED lamp 10 shown in FIG. 1.

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 includes a constant current device 30 as a power source, one fan 21, a plurality of (six in this embodiment) resistance elements 31, and a plurality of (six in this embodiment) resistance elements 31 as loads. In this case, the unit 11A includes six sets of LED elements 11.

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 has constant current diodes (not shown) connected in parallel, and stably supplies a constant current to the LED element 11 and the fan 21.
Note that the constant current device 30 is housed inside the LED fixing section 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. This one LED element 11 unit 11A and one resistance element 31 constitute one LED element 11-resistance unit 31A, and each of these six sets of LED element 11-resistance unit 31A is electrically connected in parallel to each other. Connect to Furthermore, the fan 21 is similarly electrically connected in parallel to these six sets of LED element 11-resistance unit 31A. The LED element 11, resistance element 31, and fan 21 as these loads are connected to a 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。 A current supplied from an on-vehicle battery (not shown) flows through the constant current device 30, and then flows through each of the fan 21, the LED element 11, and the resistance element 31. The current then returns to the battery via 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。
[About the advantages of LED lighting]
As explained above, according to this 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 its temperature does not exceed a predetermined temperature. Therefore, even if a resistor is inserted into the electric circuit of the LED lamp 10, the resistance value of the LED element 11 can be suppressed from decreasing, thereby preventing the control unit of the vehicle from making an erroneous determination. Thereby, it is possible to suppress the occurrence of malfunctions such as a high flasher phenomenon and a warning display due to abnormal control of the LED lighting device 10. Further, the cover part 18 is arranged to cover the light emitting part of the LED element 11 from the outside in the light emitting direction, and is a transmission filter film that transmits light from the light emitting part while reducing the amount of light emitted from the light emitting part. It 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, thereby reducing costs and ensuring 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, since 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, the control unit of the vehicle may make 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, the cover part 18 is provided so as to integrally cover each of the light emitting parts of the LED element 11 (an example of a light emitting semiconductor element), thereby reducing the number of parts and reducing costs. The entire 10 can be made smaller.

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 part 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 part 18, so that the entire LED lamp 10 can be In addition to downsizing, the strength of the LED lamp 10 can also 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、発明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 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 those skilled in the art can come up with various changes, modifications, substitutions, additions, deletions, and equivalents within the scope of the claims, and It is understood that it naturally falls within the technical scope of the present disclosure. Further, each component in the embodiments described above may be combined arbitrarily within a range that does not depart from the spirit of the invention.

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 if a resistor is inserted into the electric circuit of the lamp, the resistance value of the light emitting semiconductor element is suppressed from decreasing, preventing the vehicle control unit from making a false judgment, and it also prevents the vehicle control unit from making false judgments. It is useful as a lamp that can suppress excessive brightness even when using an element.

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 lighting equipment (lighting equipment)
11: LED element (light emitting semiconductor element)
11A : Unit 12 : Housing part 13 : LED fixing part 14 : Opening part 15 : Step part 16 : Large diameter part 17 : Small diameter part 18 : Cover part 19 : Transmission filter membrane part 20 : Base part 21 : Fan 22 : Fan Holding part 23 : Through hole 24 : Step part 25 : Large diameter part 26 : Small diameter part 27 : Connecting fitting 30 : Constant current device 31 : Resistance element 31A : Unit

Claims (4)

車両に搭載される灯具であって、
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し、
前記透過フィルタ膜部は、前記カバー部の外周面に光量を減少させる塗料素材でコーティング、又は、前記カバー部の材料に前記塗料素材を混合したうえで射出成型して前記カバー部と一体化、することにより設けられる灯具。
A light fixture mounted on a vehicle,
a light emitting semiconductor element having a light emitting part;
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 part arranged to cover the light emitting part from the outside in the light emission direction,
The cover part has a transmission filter film part that transmits the light from the light emitting part while reducing the amount of light emitted from the light emitting part,
The transmission filter film part is integrated with the cover part by coating the outer peripheral surface of the cover part with a paint material that reduces the amount of light, or by injection molding the mixture of the paint material and the material of the cover part, Lighting equipment provided by
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 section is provided so as to integrally cover each of the light emitting sections 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 part 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 part.
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JP3223886U (en) 2019-08-30 2019-11-07 株式会社Reiz LED lights

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JP3223886U (en) 2019-08-30 2019-11-07 株式会社Reiz LED lights

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