JP2015222673A - Lamp for vehicle - Google Patents

Lamp for vehicle Download PDF

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JP2015222673A
JP2015222673A JP2014106942A JP2014106942A JP2015222673A JP 2015222673 A JP2015222673 A JP 2015222673A JP 2014106942 A JP2014106942 A JP 2014106942A JP 2014106942 A JP2014106942 A JP 2014106942A JP 2015222673 A JP2015222673 A JP 2015222673A
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light source
lens
mounting surface
base plate
semiconductor
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JP6442871B2 (en
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安部 俊也
Toshiya Abe
俊也 安部
卓司 原尾
Takuji HARAO
卓司 原尾
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Ichikoh Industries Ltd
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Ichikoh Industries Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a lamp for a vehicle which includes a semiconductor type light source, an optical member which projects the light from the semiconductor type light source to an area in front of a vehicle, and a heat radiation member at which the semiconductor type light source is installed, in which a problem that light emission efficiency of the semiconductor type light source is degraded by heat is solved, to suppress degradation of light emission efficiency of the semiconductor type light source.SOLUTION: By separating a lens 3 from a light source fitting surface 54 provided at a base plate part 51 of a heat radiation member 5, a passage of air is formed between the base plate part 51 and the lens 3, for efficient heat radiation of a semiconductor light emitting element 2, thus suppressing degradation of light emission efficiency.

Description

本発明は、車両用灯具に関するものである。   The present invention relates to a vehicular lamp.

従来、車両用灯具において、半導体型光源を用いた車両用灯具の場合、半導体型光源の性能を最大限利用するために、半導体型光源から発生される熱を放熱する必要があり、ヒートシンクの形状などを変更することが知られている。   Conventionally, in a vehicular lamp, in the case of a vehicular lamp using a semiconductor type light source, it is necessary to dissipate heat generated from the semiconductor type light source in order to make the best use of the performance of the semiconductor type light source. It is known to change.

特許文献1には、半導体型光源が取り付けられたヒートシンク部材のベース部の裏面に設けられた平板フィンの形状を鉛直方向に対して傾斜させることにより、筐体内での空気を循環させ光源からの熱を効率良く放熱する、車両用灯具が開示されている。   In Patent Document 1, the shape of the flat fin provided on the back surface of the base portion of the heat sink member to which the semiconductor-type light source is attached is inclined with respect to the vertical direction to circulate the air in the housing, and from the light source. A vehicular lamp that efficiently dissipates heat is disclosed.

しかし、特許文献1においては、筐体内全体の空気を循環させるために平板フィンを傾斜させた車両用灯具であった。近年見られるように、半導体型光源が投影レンズなどの光学部材と対向して配置され、半導体型光源からの直射光を投影レンズにより配光パターンを形成するいわゆる直射タイプのランプユニットにおいては、車両前後方向において省スペース化されることによって、投影レンズと半導体型光源およびヒートシンク部材の間のスペースが小さくなり、空気の滞留が起こりやすく、半導体型光源の十分な放熱が行われていないことが課題となっている。   However, in patent document 1, it was the vehicle lamp which inclined the flat plate fin in order to circulate the air in the whole inside of a housing | casing. As seen in recent years, in a so-called direct-type lamp unit in which a semiconductor-type light source is disposed facing an optical member such as a projection lens and direct light from the semiconductor-type light source is formed by a projection lens, By saving space in the front-rear direction, the space between the projection lens, the semiconductor light source and the heat sink member is reduced, air is likely to stay, and the semiconductor light source is not sufficiently dissipated. It has become.

特開2009−266435号公報JP 2009-266435 A

本発明は上記問題点に鑑みなされたものであり、その目的は、車両用灯具の放熱効率を向上させることにより、半導体型光源が熱により発光効率を低下させるといった課題を解決し、半導体型光源の発光効率の低下を抑制させた車両用灯具を提供することにある。   The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to solve the problem that a semiconductor-type light source decreases luminous efficiency by heat by improving the heat dissipation efficiency of a vehicular lamp, and a semiconductor-type light source An object of the present invention is to provide a vehicular lamp that suppresses a decrease in luminous efficiency.

本発明は、以下の構成によって把握される。
(1)本発明の車両用灯具は、光源と、前記光源が取り付けられている放熱部材と、前記光源からの直射光を所定方向へ照射する光学部材と、を備え、前記放熱部材は車両上下方向に立設されたベースプレート部を有し、前記ベースプレート部には前記光源を設置するための光源取付面が設けられており、前記光源取付面は前記ベースプレート部の前記光学部材側の他面よりも前記光学部材から離間した位置に形成されていることを特徴とする。
The present invention is grasped by the following composition.
(1) The vehicular lamp of the present invention includes a light source, a heat radiating member to which the light source is attached, and an optical member that irradiates direct light from the light source in a predetermined direction, and the heat radiating member A base plate portion erected in a direction, and a light source mounting surface for installing the light source is provided on the base plate portion, and the light source mounting surface is more than the other surface of the base plate portion on the optical member side. Is formed at a position spaced apart from the optical member.

(2)本発明の車両用灯具は、前記光源取付面は、前記ベースプレート部の下端部から上端部まで延設されている、ことを特徴とする。   (2) The vehicular lamp according to the present invention is characterized in that the light source mounting surface extends from a lower end portion to an upper end portion of the base plate portion.

(3)本発明の車両用灯具は、前記放熱部材の前記ベースプレート部には、前記光源取付面の外側で、かつ、前記光源取付面よりも前記光学部材に近接した位置に光学部材取付面が形成されており、前記光学部材は前記光学部材取付面に取り付けられる、ことを特徴とする。   (3) In the vehicular lamp according to the present invention, the base plate portion of the heat radiating member has an optical member mounting surface outside the light source mounting surface and closer to the optical member than the light source mounting surface. It is formed, The said optical member is attached to the said optical member attachment surface, It is characterized by the above-mentioned.

(4)本発明の車両用灯具は、前記ベースプレート部の一部には、前記光源へ電力を供給する給電部材の一部を挿通する開口部が設けられている、ことを特徴とする。   (4) The vehicular lamp according to the present invention is characterized in that an opening through which a part of a power supply member for supplying electric power to the light source is inserted is provided in a part of the base plate part.

(5)本発明の車両用灯具は、光源は、光の出射光軸が車両前方方向となるように設置されており、光学部材は光源と対向するよう設置されており、光源からの直射光を入射する入射面を有する、ことを特徴とする。   (5) In the vehicular lamp of the present invention, the light source is installed such that the light emission optical axis is in the vehicle front direction, the optical member is installed so as to face the light source, and direct light from the light source is provided. It has the incident surface which injects.

本発明によれば、光学部材と、光源が取り付けられた放熱部材の光源取付面を他面よりも離間させ、空間を設けるようにしたことにより、光学部材と光源との距離が近いタイプの車両用灯具においても、光源近傍に下方から上方へ向かう空気の流れを形成することができ、光源からの熱の放熱効率を向上させるとともに、光源の発光効率の低下を抑制することができる。   According to the present invention, the optical member and the light source mounting surface of the heat radiating member to which the light source is mounted are separated from the other surface to provide a space, so that the distance between the optical member and the light source is short. Also in the lamp, it is possible to form a flow of air from the lower side to the upper side in the vicinity of the light source, thereby improving the heat radiation efficiency of the heat from the light source and suppressing the decrease in the light emission efficiency of the light source.

本発明に係る車両用灯具の実施形態を示すランプユニットの正面側から見た分解状態の斜視図である。It is the perspective view of the decomposition | disassembly state seen from the front side of the lamp unit which shows embodiment of the vehicle lamp which concerns on this invention. 図1におけるレンズとレンズホルダを外した状態であり、A−A線に沿って放熱部材を切断した斜視図である。FIG. 2 is a perspective view of a state in which a lens and a lens holder in FIG. 1 are removed and a heat dissipation member is cut along line AA. ランプユニットのレンズとレンズホルダを外した状態を示す正面図である。It is a front view which shows the state which removed the lens and lens holder of the lamp unit. 図1におけるレンズとレンズホルダを外した状態であり、A−A線に沿って放熱部材を切断した側面図である。It is the state which removed the lens and lens holder in FIG. 1, and was a side view which cut | disconnected the heat radiating member along the AA line.

以下、本発明を実施するための形態(以下、「実施形態」という)を、添付図面に基づいて詳細に説明する。なお、この実施形態によりこの発明が限定されるものではない。この明細書において、前、後、上、下、左、右は、この発明にかかる車両用灯具を車両に搭載した際の前、後、上、下、左、右である。
<以下に実施形態を記載していく>
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by this embodiment. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicular lamp according to the present invention is mounted on a vehicle.
<The embodiment will be described below>

(実施形態の構成の説明)
図1〜図4は、この発明にかかる車両用灯具の実施形態を示す。以下、この実施形態にかかる車両用灯具の構成について説明する。図1中、符号1は、この実施形態にかかる車両用灯具(たとえば、ヘッドランプやフォグランプなど)である。車両用灯具1は、車両の前部の左右両端部に搭載されている。
(Description of Configuration of Embodiment)
1 to 4 show an embodiment of a vehicular lamp according to the present invention. Hereinafter, the configuration of the vehicular lamp according to this embodiment will be described. In FIG. 1, reference numeral 1 denotes a vehicular lamp (for example, a headlamp or a fog lamp) according to this embodiment. The vehicular lamp 1 is mounted on both left and right ends of the front portion of the vehicle.

(車両用灯具1の説明)
前記車両用灯具1は、(図示しない)ランプハウジングと、(図示しない)アウターレンズと、によって画成された灯室内に、図1に示すように、光源としての半導体型光源2と、レンズ3と、レンズホルダ4と、放熱部材5、を備えるものである。半導体型光源2は、光源ホルダ21により放熱部材5のベースプレート部51に設けられた光源取付面54に取り付けられている。レンズ3およびレンズホルダ4は、放熱部材5のベースプレート部51に設けられた光学部材取付面52に取り付けられている。
(Description of vehicle lamp 1)
The vehicular lamp 1 includes a semiconductor light source 2 as a light source and a lens 3 in a lamp chamber defined by a lamp housing (not shown) and an outer lens (not shown), as shown in FIG. And a lens holder 4 and a heat dissipation member 5. The semiconductor light source 2 is attached to a light source attachment surface 54 provided on the base plate portion 51 of the heat dissipation member 5 by the light source holder 21. The lens 3 and the lens holder 4 are attached to an optical member attachment surface 52 provided on the base plate portion 51 of the heat dissipation member 5.

(ランプユニット2、3、4、5の説明)
半導体型光源2およびレンズ3およびレンズホルダ4および放熱部材5は、ランプユニットを構成し、ランプハウジングおよびアウターレンズにより画成された灯室内(図示せず)に、上下左右方向に光軸調整可能に配置される。
(Explanation of lamp units 2, 3, 4, 5)
The semiconductor-type light source 2, the lens 3, the lens holder 4, and the heat radiating member 5 constitute a lamp unit, and the optical axis can be adjusted in the vertical and horizontal directions in a lamp chamber (not shown) defined by the lamp housing and the outer lens. Placed in.

(半導体型光源2の説明)
半導体型光源2は、図1に示すように、この例では、たとえば、LED、OELまたはOLED(有機EL)などの自発光半導体型光源である。半導体型光源2は、発光面を有する発光チップ(LEDチップ)と基板20と、から構成されている。半導体型光源2は、光源ホルダ21を介して放熱部材5の光源取付面54に設けられた光源取付部57に位置決めされて取り付けられている。また、半導体型光源2は、光の出射光軸が車両前方方向となるように配置され、その発光チップの発光面は、レンズ3の後側焦点近傍に位置し、車両前方を向くように配置されている。
(Description of the semiconductor-type light source 2)
As shown in FIG. 1, the semiconductor light source 2 is a self-luminous semiconductor light source such as an LED, OEL, or OLED (organic EL) in this example. The semiconductor type light source 2 includes a light emitting chip (LED chip) having a light emitting surface and a substrate 20. The semiconductor light source 2 is positioned and attached to the light source attachment portion 57 provided on the light source attachment surface 54 of the heat dissipation member 5 via the light source holder 21. The semiconductor light source 2 is arranged so that the light emission optical axis is in the vehicle front direction, and the light emitting surface of the light emitting chip is located near the rear focal point of the lens 3 and is arranged to face the vehicle front. Has been.

光源ホルダ21は、スクリュー23により放熱部材5の光源取付面54に設けられた光源ホルダ取付部58に位置決めされて取り付けられている。光源ホルダ21には、半導体型光源2を放熱部材5に保持するホルダ部22と、半導体型光源2に給電するターミナルおよび電力を供給するコネクタとが形成される給電部材6とが、それぞれ設けられている。給電部材6は、光源ホルダ21に一体に形成されても良いし、別部材として形成されても良い。   The light source holder 21 is positioned and attached to the light source holder attaching portion 58 provided on the light source attaching surface 54 of the heat radiating member 5 by the screw 23. The light source holder 21 is provided with a holder portion 22 for holding the semiconductor-type light source 2 on the heat radiating member 5 and a power supply member 6 in which a terminal for supplying power to the semiconductor-type light source 2 and a connector for supplying power are formed. ing. The power feeding member 6 may be formed integrally with the light source holder 21 or may be formed as a separate member.

(給電部材の説明)
給電部材6は、給電ソケット60と、給電ソケット60に挿入されるコネクタ部61と、コネクタ部61と(図示しない)電源とを結ぶハーネス62とから構成されており、給電部材6および光源ホルダ21のターミナルを介して、半導体型光源2に電力を供給する。図1および図4に示すように、給電部材6は、光源ホルダ21の端部であって、ベースプレート部51の背面側にずれた位置に設けられる。この実施例では、半導体型光源2が光源ホルダ21のホルダ部22により光源取付面54に位置決めされて取り付けられており、光源取付面54の車両前後方向後方側にずれた位置に給電部材6が設けられる。
(Description of power supply member)
The power supply member 6 includes a power supply socket 60, a connector portion 61 inserted into the power supply socket 60, and a harness 62 that connects the connector portion 61 and a power source (not shown), and the power supply member 6 and the light source holder 21. Power is supplied to the semiconductor light source 2 via the terminal. As shown in FIGS. 1 and 4, the power supply member 6 is provided at a position that is an end portion of the light source holder 21 and is shifted to the back side of the base plate portion 51. In this embodiment, the semiconductor light source 2 is positioned and attached to the light source attachment surface 54 by the holder portion 22 of the light source holder 21, and the power supply member 6 is located at a position shifted to the rear side in the vehicle front-rear direction of the light source attachment surface 54. Provided.

(レンズの説明)
レンズ3は、図1に示すように、レンズ部30と、フランジ部31と、から構成されている。レンズ部30は半導体型光源2からの出射光(直射光)を入射する入射面32と、入射面32で入射した光を車両前方の所定の方向へ出射する出射面33とからなり、レンズ部30の正面視形状は、非円形形状をなす。レンズ3は、樹脂部材から構成されている。
(Lens description)
As shown in FIG. 1, the lens 3 includes a lens portion 30 and a flange portion 31. The lens unit 30 includes an incident surface 32 on which outgoing light (direct light) from the semiconductor-type light source 2 is incident, and an output surface 33 that emits light incident on the incident surface 32 in a predetermined direction in front of the vehicle. The shape of the front view 30 is a non-circular shape. The lens 3 is made of a resin member.

レンズ部30は、光源2に対向するように設けられた入射面32と、車両前方側に位置する出射面33と、から構成されている。入射面32は、半導体型光源2側に突出した凸曲面、もしくは、半導体型光源2と反対側に引っ込んだ凹曲面、もしくは、平面をなす。入射面32は、自由曲面、もしくは、2次曲面、もしくは、複合2次曲面、もしくは、それらの組み合わせの面、もしくは、平面から構成されている。出射面33は、半導体型光源2と反対側に突出した凸曲面をなす。出射面33は、自由曲面、もしくは、2次曲面、もしくは、複合2次曲面、もしくは、それらの組み合わせの面から構成されており、複数に分割された面から構成しても良い。   The lens unit 30 includes an incident surface 32 provided so as to face the light source 2 and an emission surface 33 located on the vehicle front side. The incident surface 32 forms a convex curved surface protruding toward the semiconductor-type light source 2, or a concave curved surface recessed toward the opposite side of the semiconductor-type light source 2, or a flat surface. The incident surface 32 includes a free-form surface, a quadratic surface, a composite quadratic surface, a combination surface, or a plane. The emission surface 33 forms a convex curved surface that protrudes on the opposite side to the semiconductor light source 2. The exit surface 33 is composed of a free-form surface, a quadric surface, a composite quadric surface, or a combination thereof, and may be composed of a plurality of surfaces.

フランジ部31は、レンズ部30の周縁部(全周もしくは一部)に一体に設けられている。フランジ部31の背面は、入射面32から連続した自由曲面もしくは平面からなる。フランジ部31の正面は、出射面33から連続した自由曲面もしくは平面からなる。フランジ部31の縁(端面、外面)の正面視形状は、レンズ部30の正面視形状と同様の形状からなる。   The flange portion 31 is integrally provided on the peripheral portion (entire periphery or part) of the lens portion 30. The back surface of the flange portion 31 is formed of a free curved surface or a flat surface continuous from the incident surface 32. The front surface of the flange portion 31 is a free curved surface or a flat surface that is continuous from the emission surface 33. The front view shape of the edge (end surface, outer surface) of the flange portion 31 is the same shape as the front view shape of the lens portion 30.

レンズ3は、フランジ部31によりレンズホルダ4に位置決めされて保持されている。レンズホルダ4は、フランジ部31を保持して放熱部材5の光学部材取付面52に位置決めされて取り付けられている。   The lens 3 is positioned and held on the lens holder 4 by the flange portion 31. The lens holder 4 is positioned and attached to the optical member attachment surface 52 of the heat dissipation member 5 while holding the flange portion 31.

(レンズホルダの説明)
レンズホルダ4は、放熱部材5よりも熱伝導率が低い(熱抵抗が大きい)樹脂部材から構成されている。レンズホルダ4は、図1に示すように、中央部にレンズ部30が配置される筒構造から構成されている。レンズホルダ4は、保持筒部41と、保持縁部42と、取付ベース部43と、から構成されている。
(Description of lens holder)
The lens holder 4 is made of a resin member having a lower thermal conductivity (a higher thermal resistance) than that of the heat dissipation member 5. As shown in FIG. 1, the lens holder 4 has a cylindrical structure in which a lens portion 30 is disposed at the center. The lens holder 4 includes a holding cylinder portion 41, a holding edge portion 42, and a mounting base portion 43.

レンズホルダ4の保持筒部41は、筒形状をなしており、車両前方側の端部に位置する保持縁部42と、放熱部材5側の端部に位置する取付ベース部43の間に形成されている。保持筒部41の正面視形状は、レンズ3の正面視形状と同様に非円形形状をなし、保持筒部41の内周面は、レンズ3のフランジ部31の縁の外周面より若干大きい形状をなしている。   The holding cylinder portion 41 of the lens holder 4 has a cylindrical shape and is formed between a holding edge portion 42 located at an end portion on the vehicle front side and a mounting base portion 43 located at an end portion on the heat dissipation member 5 side. Has been. The front view shape of the holding cylinder portion 41 is a non-circular shape like the front view shape of the lens 3, and the inner peripheral surface of the holding cylinder portion 41 is slightly larger than the outer peripheral surface of the edge of the flange portion 31 of the lens 3. I am doing.

レンズホルダ4の保持縁部42は、フランジ形状をなしており、保持筒部41の一端(車両前方側の端部)から保持筒部41の内側に一体に設けられている。保持縁部42の内周面の形状は、レンズ3のレンズ部30の正面視形状と同様に非円形形状をなす。保持縁部42の内周面は、レンズ3のフランジ部31の縁の外周面より若干小さく、かつ、レンズ部30とフランジ部31との境界より若干大きい形状をなす。保持縁部42は、レンズ3のフランジ部31を位置決め保持している。   The holding edge portion 42 of the lens holder 4 has a flange shape, and is integrally provided from one end of the holding cylinder portion 41 (the end portion on the vehicle front side) to the inside of the holding cylinder portion 41. The shape of the inner peripheral surface of the holding edge portion 42 is a non-circular shape as in the front view shape of the lens portion 30 of the lens 3. The inner peripheral surface of the holding edge portion 42 is slightly smaller than the outer peripheral surface of the edge of the flange portion 31 of the lens 3 and is slightly larger than the boundary between the lens portion 30 and the flange portion 31. The holding edge portion 42 positions and holds the flange portion 31 of the lens 3.

レンズホルダ4の取付ベース部43は、板形状をなしていて、保持筒部41の他端(放熱部材5側の端部)の上部および下部から保持筒部41の上方外側および下方外側に一体に設けられている。取付ベース部43の外形の正面視形状は、ほぼ長方形状をなしている。取付ベース部43は、放熱部材5の光学部材取付面52と対向して設けられており、光学部材取付面52に位置決めされて取り付けられている。光学部材取付面52については後述する。   The mounting base portion 43 of the lens holder 4 has a plate shape, and is integrated with the upper outer side and the lower outer side of the holding cylinder portion 41 from the upper and lower ends of the other end of the holding cylinder portion 41 (the end portion on the heat radiation member 5 side). Is provided. The front view shape of the outer shape of the mounting base portion 43 is substantially rectangular. The mounting base portion 43 is provided to face the optical member mounting surface 52 of the heat radiating member 5, and is positioned and mounted on the optical member mounting surface 52. The optical member mounting surface 52 will be described later.

(放熱部材の説明)
放熱部材5は、半導体型光源2とレンズホルダ4とが取り付けられていて、かつ、レンズ3がレンズホルダ4を介して取り付けられている。放熱部材5は、半導体型光源2で発生する熱を外部に放射させるものである。放熱部材5は、たとえば、熱伝導性を有するアルミダイカストや樹脂からなるヒートシンク部材である。放熱部材5は、図1に示すように、垂直方向(車両上下方向)に立設されたベースプレート部51と、ベースプレート部51の一面(背面)に一体に設けた複数枚の垂直板形状のフィン部56と、から構成されている。
(Description of heat dissipation member)
The heat radiating member 5 has a semiconductor light source 2 and a lens holder 4 attached thereto, and a lens 3 is attached via the lens holder 4. The heat radiating member 5 radiates heat generated by the semiconductor light source 2 to the outside. The heat radiating member 5 is, for example, a heat sink member made of aluminum die casting or resin having thermal conductivity. As shown in FIG. 1, the heat dissipating member 5 includes a base plate portion 51 erected in the vertical direction (vehicle up-down direction) and a plurality of vertical plate-shaped fins integrally provided on one surface (back surface) of the base plate portion 51. Part 56.

放熱部材5のベースプレート部51の他面(正面)には、光源取付面54と光学部材取付面52とが段差部55を介して設けられている。光源取付面54は、車両前方側からの正面視において、ベースプレート部51の中央側に位置しており、さらにその中央部に光源取付部57が形成されている。光学部材取付面52は、光源取付面54の外側に設けられている。   On the other surface (front surface) of the base plate portion 51 of the heat radiating member 5, a light source mounting surface 54 and an optical member mounting surface 52 are provided via a stepped portion 55. The light source mounting surface 54 is located on the center side of the base plate portion 51 in a front view from the front side of the vehicle, and a light source mounting portion 57 is formed at the center portion. The optical member mounting surface 52 is provided outside the light source mounting surface 54.

光源取付面54は、段差部55を介して光学部材取付面52よりもレンズ3から離間した位置に設けられている。光源取付面54は、半導体型光源2の上下方向であってベースプレート部51の下端部51bから上端部51aまで延設され、かつ、半導体型光源2の左右方向にも延設された十字形状の面を有し、中央部には光源取付部57が設けられている。光源取付面54は、光源取付部57に半導体型光源2が光源ホルダ21を介して取り付けられる面である。光源取付面54は、必ずしも十字形状でなくとも良い。例えば、ベースプレート部51の中央側に上下方向の段差部55を介して設けられる形状としても良い。   The light source mounting surface 54 is provided at a position farther from the lens 3 than the optical member mounting surface 52 through the step portion 55. The light source mounting surface 54 extends in the vertical direction of the semiconductor-type light source 2 from the lower end portion 51 b to the upper end portion 51 a of the base plate portion 51 and extends in the left-right direction of the semiconductor-type light source 2. The light source attachment part 57 is provided in the center part. The light source attachment surface 54 is a surface on which the semiconductor light source 2 is attached to the light source attachment portion 57 via the light source holder 21. The light source mounting surface 54 does not necessarily have a cross shape. For example, it is good also as a shape provided in the center side of the baseplate part 51 via the level | step-difference part 55 of an up-down direction.

光源取付面54は、光源ホルダ21の給電部材6の形状に合わせて、給電部材6の一部を配置する収容部7を備えている。収容部7は、ベースプレート部51の一面(背面)側に凹となる形状からなり、給電部材6の一部が配置される空間が形成される。その際、収容部7の一部および光源取付面54の一部に亘って開口部59が設けられている。   The light source mounting surface 54 includes a housing portion 7 in which a part of the power supply member 6 is arranged in accordance with the shape of the power supply member 6 of the light source holder 21. The accommodating portion 7 has a concave shape on one surface (back surface) side of the base plate portion 51, and a space in which a part of the power feeding member 6 is disposed is formed. In that case, the opening part 59 is provided over a part of the accommodating part 7 and a part of the light source attachment surface 54.

収容部7は、光源取付面54の左右いずれか一方に設けられている。本実施例においては、十字形状に形成されている光源取付面54の右側であって、光源ホルダ21の給電部材6のコネクタ部61よりも大きく形成されている。収容部7には、光源ホルダ21がベースプレート部51に設置された際に、給電部材6が収納される。また、光源ホルダ21が取り付けられた状態において、給電部材6および光源ホルダ21を介して半導体型光源2に電力を供給するハーネス62が開口部59を挿通してコネクタ部61に取り付けられる。   The accommodating portion 7 is provided on either the left or right side of the light source mounting surface 54. In the present embodiment, it is formed on the right side of the light source mounting surface 54 formed in a cross shape and larger than the connector portion 61 of the power supply member 6 of the light source holder 21. When the light source holder 21 is installed on the base plate portion 51, the power supply member 6 is stored in the storage portion 7. Further, in a state where the light source holder 21 is attached, a harness 62 that supplies power to the semiconductor light source 2 via the power supply member 6 and the light source holder 21 is inserted through the opening 59 and attached to the connector portion 61.

収容部7は、光源取付面54に設けられた凹形状に限らず、光源取付面54の給電部材6に対応する位置が切り欠かれた開口部59からなる形状としても良い。この場合、開口部59は、給電部材6の収容部7と、給電部材6および光源ホルダ21を介して半導体型光源2に電力を供給するハーネス62が挿通される開口を兼ねる。   The housing portion 7 is not limited to the concave shape provided on the light source mounting surface 54, and may have a shape including an opening 59 in which a position corresponding to the power supply member 6 of the light source mounting surface 54 is cut out. In this case, the opening 59 also serves as an opening through which the housing portion 7 of the power supply member 6 and a harness 62 that supplies power to the semiconductor light source 2 through the power supply member 6 and the light source holder 21 are inserted.

放熱部材5のベースプレート部51の他面(正面)には、正面視において光源取付面54の外側に光学部材取付面52が設けられている。光学部材取付面52は光源取付面54の外側(左右両側)に位置しており、段差部55を介して光源取付面54よりもレンズ3に近接した位置に面が設定されている。光学部材取付面52には、レンズホルダ4の取付ベース部43がレンズ3を保持して位置決めされ取り付けられる。   On the other surface (front surface) of the base plate portion 51 of the heat radiating member 5, an optical member mounting surface 52 is provided outside the light source mounting surface 54 in a front view. The optical member mounting surface 52 is located outside (on the left and right sides) of the light source mounting surface 54, and the surface is set at a position closer to the lens 3 than the light source mounting surface 54 via the stepped portion 55. An attachment base portion 43 of the lens holder 4 is positioned and attached to the optical member attachment surface 52 while holding the lens 3.

段差部55は、光源取付面54と光学部材取付面52の間に設けられており、光源取付面54と光学部材取付面52を繋ぐ面が形成されている。段差部55の一部に光源ホルダ21の給電部材6の一部が挿通可能な開口部59を設けても良い。   The step portion 55 is provided between the light source mounting surface 54 and the optical member mounting surface 52, and a surface connecting the light source mounting surface 54 and the optical member mounting surface 52 is formed. An opening 59 through which a part of the power supply member 6 of the light source holder 21 can be inserted may be provided in a part of the step part 55.

ベースプレート部51の光学部材取付面52には、レンズホルダ4がレンズホルダ4の取付ベース部43に設けられた取付構造(図示しない)により固定される。レンズホルダ4はレンズ3を保持しているため、レンズホルダ4とレンズ3は、光学部材取付面52に一体的に取り付け固定される。光学部材取付面52は、ベースプレート部51の他面(正面)側であって少なくとも角部に設けられており、レンズホルダ4の取付構造については、フック構造やスクリューによる取付構造によるものである。   The lens holder 4 is fixed to the optical member attachment surface 52 of the base plate portion 51 by an attachment structure (not shown) provided on the attachment base portion 43 of the lens holder 4. Since the lens holder 4 holds the lens 3, the lens holder 4 and the lens 3 are integrally attached and fixed to the optical member attachment surface 52. The optical member mounting surface 52 is provided on the other surface (front) side of the base plate portion 51 and at least at the corners. The mounting structure of the lens holder 4 is based on a hook structure or a mounting structure using screws.

(実施形態の作用の説明)
この実施形態にかかる車両用灯具1は、以上のごとき構成からなり、以下、その作用について説明する。
(Description of the operation of the embodiment)
The vehicular lamp 1 according to this embodiment is configured as described above, and the operation thereof will be described below.

まず、半導体型光源2の発光チップを点灯発光させる。すると、発光チップから放射された光の大部分は、直接、レンズ3のレンズ部30の入射面32からレンズ部30内に入射する。このとき、入射光は、入射面32において配光制御される。レンズ部30中に入射した入射光は、レンズ部30の出射面33から出射する。このとき、出射光は、出射面33において制御され、半導体型光源2から放射された光は、入射面32および出射面33において配光制御される。出射光は、所定の配光パターン(例えば、ロービーム用配光パターン、ハイビーム用配光パターン)として、車両の前方に照射される。   First, the light emitting chip of the semiconductor light source 2 is turned on. Then, most of the light emitted from the light emitting chip directly enters the lens unit 30 from the incident surface 32 of the lens unit 30 of the lens 3. At this time, the light distribution of the incident light is controlled on the incident surface 32. Incident light that enters the lens unit 30 exits from the exit surface 33 of the lens unit 30. At this time, the emitted light is controlled on the emission surface 33, and the light emitted from the semiconductor light source 2 is light distribution controlled on the incident surface 32 and the emission surface 33. The emitted light is irradiated in front of the vehicle as a predetermined light distribution pattern (for example, a low beam distribution pattern, a high beam distribution pattern).

また、半導体型光源2の発光チップにおいて発生する熱は、放熱部材5を介して外部に放射される。その際、ベースプレート部51の光源取付面54が、少なくとも光源を通る垂直断面においては、レンズ3から離間して設けられているため、灯具内の空気がレンズ3と半導体型光源2の間に形成された隙間を下方から上方へと対流する。   The heat generated in the light emitting chip of the semiconductor light source 2 is radiated to the outside through the heat radiating member 5. At this time, since the light source mounting surface 54 of the base plate portion 51 is provided at least in the vertical cross section passing through the light source, the air in the lamp is formed between the lens 3 and the semiconductor-type light source 2. The created gap is convected from below to above.

(実施形態の効果の説明)
この実施形態にかかる車両用灯具1は、以上のごとき構成および作用からなり、以下、その効果について説明する。
(Explanation of effect of embodiment)
The vehicular lamp 1 according to this embodiment is configured and operated as described above, and the effects thereof will be described below.

この実施形態にかかる車両用灯具1は、いわゆる直射タイプのランプユニットにおいても、レンズ3と、ベースプレート部51の光源取付面54を他面よりも離間させてを形成することにより、熱源である半導体型光源2と光学部材3の間の距離を大きくすることができるため、半導体型光源2とベースプレート部51が近接されて設けられるランプユニットにおいても、半導体型光源2から発生し光学部材3とベースプレート部51の半導体型光源2近傍で滞留していた空気を対流させる流路として機能させることができる。そのため、半導体型光源2を効率よく放熱させることができる。これにより、熱による半導体型光源2の発光効率の低下を抑制することができる。   The vehicular lamp 1 according to this embodiment is a semiconductor that is a heat source by forming the lens 3 and the light source mounting surface 54 of the base plate portion 51 so as to be separated from the other surface even in a so-called direct-light type lamp unit. Since the distance between the mold light source 2 and the optical member 3 can be increased, even in the lamp unit in which the semiconductor light source 2 and the base plate portion 51 are provided close to each other, the optical member 3 and the base plate generated from the semiconductor light source 2 It can be made to function as a flow path for convection of air staying in the vicinity of the semiconductor-type light source 2 of the part 51. Therefore, the semiconductor light source 2 can be radiated efficiently. Thereby, the fall of the luminous efficiency of the semiconductor type light source 2 by a heat | fever can be suppressed.

また、ベースプレート部の一部に、半導体型光源2へ電力を供給する給電部材の一部を挿通する開口部を設けることにより、給電部材6やハーネス62等をベースプレート部51の一面(背面)側に位置させることができるため、レンズ3と半導体型光源2との間にハーネス62等の余計な部品を配置することが避けられ、レンズ3と半導体型光源2の隙間を確保することができる。このため、レンズ3と半導体型光源2の間で留まっている空気を対流させる流路を確保することができる。その結果、光源取付面54の下方側から上方側へと対流が発生した際においても、ハーネス等により空気の流れを阻害することがなく、半導体型光源2を効率よく放熱することが可能となる。   In addition, by providing an opening through which a part of the power supply member that supplies power to the semiconductor-type light source 2 is provided in a part of the base plate part, the power supply member 6, the harness 62, etc. Therefore, it is possible to avoid placing extra parts such as the harness 62 between the lens 3 and the semiconductor-type light source 2, and to secure a gap between the lens 3 and the semiconductor-type light source 2. For this reason, it is possible to secure a flow path for convection of the air remaining between the lens 3 and the semiconductor-type light source 2. As a result, even when convection occurs from the lower side to the upper side of the light source mounting surface 54, the semiconductor light source 2 can be efficiently radiated without hindering the air flow by the harness or the like. .

本実施例では、光源ホルダ21と給電部材6が一体となった実施例にて説明を行ったが、これに限定されるものではなく、半導体型光源2の給電方法に応じて変更されればよく、光源ホルダ21と給電部材6が別体のものでも良い。   In the present embodiment, the light source holder 21 and the power supply member 6 have been described as an integrated example. However, the present invention is not limited to this, and the light source holder 21 and the power supply member 6 may be changed according to the power supply method of the semiconductor light source 2. The light source holder 21 and the power feeding member 6 may be separate.

1 車両用灯具
2 半導体型光源
20 基板
21 光源ホルダ
22 ホルダ部
23 スクリュー
3 レンズ
30 レンズ部
31 フランジ部
32 入射面
33 出射面
4 レンズホルダ
41 保持筒部
42 保持縁部
43 取付ベース部
5 放熱部材
51 ベースプレート部
51a 上端部
51b 下端部
52 光学部材取付面
54 光源取付面
55 段差部
56 フィン
57 光源取付部
58 光源ホルダ取付部
59 開口部
6 給電部材
60 給電ソケット
61 コネクタ部
62 ハーネス
7 収容部

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Semiconductor type light source 20 Board | substrate 21 Light source holder 22 Holder part 23 Screw 3 Lens 30 Lens part 31 Flange part 32 Incidence surface 33 Outgoing surface 4 Lens holder 41 Holding cylinder part 42 Holding edge part 43 Mounting base part 5 Heat radiating member 51 Base plate portion 51a Upper end portion 51b Lower end portion 52 Optical member mounting surface 54 Light source mounting surface 55 Stepped portion 56 Fin 57 Light source mounting portion 58 Light source holder mounting portion 59 Opening portion 6 Power feeding member 60 Power feeding socket 61 Connector portion 62 Harness 7 Housing portion

Claims (5)

光源と、前記光源が取り付けられている放熱部材と、前記光源からの直射光を所定方向へ照射する光学部材と、を備え、前記放熱部材は車両上下方向に立設されたベースプレート部を有し、前記ベースプレート部には前記光源を設置するための光源取付面が設けられており、前記光源取付面は前記ベースプレート部の前記光学部材側の他面よりも前記光学部材から離間した位置に形成されている、ことを特徴とする車両用灯具。   A light source, a heat radiating member to which the light source is attached, and an optical member that irradiates direct light from the light source in a predetermined direction, and the heat radiating member has a base plate portion erected in the vehicle vertical direction. The base plate portion is provided with a light source mounting surface for installing the light source, and the light source mounting surface is formed at a position farther from the optical member than the other surface of the base plate portion on the optical member side. A vehicular lamp characterized by that. 前記光源取付面は、前記ベースプレート部の下端部から上端部まで延設されている、ことを特徴とする請求項1に記載の車両用灯具。 The vehicular lamp according to claim 1, wherein the light source mounting surface extends from a lower end portion to an upper end portion of the base plate portion. 前記放熱部材の前記ベースプレート部には、前記光源取付面の外側で、かつ、前記光源取付面よりも前記光学部材に近接した位置に光学部材取付面が形成されており、前記光学部材は前記光学部材取付面に取り付けられる、ことを特徴とする請求項2に記載の車両用灯具。   An optical member mounting surface is formed on the base plate portion of the heat radiating member at a position outside the light source mounting surface and closer to the optical member than the light source mounting surface. The vehicular lamp according to claim 2, wherein the vehicular lamp is mounted on a member mounting surface. 前記ベースプレート部の一部には、前記光源へ電力を供給する給電部材の一部を挿通する開口部が設けられている、ことを特徴とする請求項1から3いずれか1項に記載の車両用灯具。   4. The vehicle according to claim 1, wherein an opening through which a part of a power supply member that supplies electric power to the light source is inserted is provided in a part of the base plate part. 5. Lamps. 前記光源は、光の出射光軸が車両前方方向となるように設置されており、前記光学部材は前記光源と対向するよう設置されており、前記光源からの直射光を入射する入射面を有する、ことを特徴とする請求項1から4いずれか1項に記載の車両用灯具。   The light source is installed so that an outgoing optical axis of light is in a vehicle front direction, the optical member is installed to face the light source, and has an incident surface on which direct light from the light source is incident. The vehicular lamp according to any one of claims 1 to 4, wherein the vehicular lamp is provided.
JP2014106942A 2014-05-23 2014-05-23 Vehicle lighting Active JP6442871B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018038048A1 (en) * 2016-08-22 2018-03-01 市光工業株式会社 Vehicle lamp

Citations (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018038048A1 (en) * 2016-08-22 2018-03-01 市光工業株式会社 Vehicle lamp
JP2018032469A (en) * 2016-08-22 2018-03-01 市光工業株式会社 Vehicular lighting fixture
CN109642711A (en) * 2016-08-22 2019-04-16 市光工业株式会社 Lamps apparatus for vehicle
EP3502545A4 (en) * 2016-08-22 2020-03-25 Ichikoh Industries, Ltd. Vehicle lamp
US10648641B2 (en) 2016-08-22 2020-05-12 Ichikoh Industries, Ltd. Vehicle lamp

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