JP2009289649A - Led illuminating lamp - Google Patents

Led illuminating lamp Download PDF

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Publication number
JP2009289649A
JP2009289649A JP2008142225A JP2008142225A JP2009289649A JP 2009289649 A JP2009289649 A JP 2009289649A JP 2008142225 A JP2008142225 A JP 2008142225A JP 2008142225 A JP2008142225 A JP 2008142225A JP 2009289649 A JP2009289649 A JP 2009289649A
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Prior art keywords
led
holding
flexible printed
leds
printed wiring
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Takahiro Yamamoto
隆裕 山本
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ARUMO TECHNOS KK
Riido KK
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ARUMO TECHNOS KK
Riido KK
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/20—Light sources with three-dimensionally disposed light-generating elements on convex supports or substrates, e.g. on the outer surface of spheres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED illuminating lamp reducible in illumination unevenness. <P>SOLUTION: The LED illuminating lamp 2 includes a flexible printed wiring board 4, a plurality of LEDs 6 mounted on the flexible printed wiring board 4, and a holding means 8 holding the flexible printed wiring board 4. The holding means 8 includes a holding part 22 holding the flexible printed wiring board 4, and a base part 24 mounted to the base end of the holding part 22. The outer peripheral surface of the holding part 22 is provided with a mounting surface 30 widened in skirt shape toward the base end from the tip part. The flexible printed wiring board 4 is mounted on the mounting surface 30, and the plurality of LEDs 6 are disposed at circumferential spaces on the mounting surface 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、ＬＥＤを光源として用いたＬＥＤ照明灯に関する。   The present invention relates to an LED illumination lamp using an LED as a light source.

近年、ＬＥＤを光源として用いたＬＥＤ照明灯が提案されており、このようなＬＥＤ照明灯は、従来の蛍光灯や白熱電球などを光源として用いた照明灯と比して、熱エネルギーによる損失が少なく、また寿命が長いという利点があり、蛍光灯や白熱電球などに替わる新しい照明として注目されている。   In recent years, LED illuminating lamps using LEDs as light sources have been proposed, and such LED illuminating lamps have a loss due to thermal energy as compared to illuminating lamps using conventional fluorescent lamps or incandescent bulbs as light sources. It has the advantage of being small and has a long life, and is attracting attention as a new lighting alternative to fluorescent and incandescent bulbs.

このようなＬＥＤ照明灯は、例えばタクシーの屋根上に設けられる表示灯として用いられている（例えば、特許文献１参照）。図８は従来のＬＥＤ照明灯を示す斜視図であり、図示のＬＥＤ照明灯１００は、第１照射手段１０２と、複数（例えば５個）の第２照射手段１０４と、これら第１及び第２照射手段１０２，１０４を保持するための保持部（図示せず）と、保持部の基端部に取り付けられた口金部１０６と、を備えている。第１照射手段１０２は、円形状のプリント配線基板１０８と、プリント配線基板１０８に実装された３個のＬＥＤ１１０と、を備え、第２照射手段１０４は、矩形状のプリント配線基板１１２と、このプリント配線基板１１２に実装された２個のＬＥＤ１１４と、を備えている。第１照射手段１０２は保持部の先端部に取り付けられ、また複数の第２照射手段１０４は、保持部の外周部に周方向に相互に隣接して取り付けられている。   Such an LED illumination lamp is used as an indicator lamp provided on the roof of a taxi, for example (for example, refer patent document 1). FIG. 8 is a perspective view showing a conventional LED illuminating lamp. The illustrated LED illuminating lamp 100 includes a first irradiating means 102, a plurality of (for example, five) second irradiating means 104, and a first and second of these. A holding part (not shown) for holding the irradiation means 102 and 104 and a base part 106 attached to the base end part of the holding part are provided. The first irradiation means 102 includes a circular printed wiring board 108 and three LEDs 110 mounted on the printed wiring board 108, and the second irradiation means 104 includes a rectangular printed wiring board 112 and this And two LEDs 114 mounted on the printed wiring board 112. The 1st irradiation means 102 is attached to the front-end | tip part of a holding | maintenance part, and the several 2nd irradiation means 104 is attached to the outer peripheral part of the holding | maintenance part adjacent to each other in the circumferential direction.

ＬＥＤ照明灯１００の外側には半透明のカバー体（図示せず）が配設されており、第１及び第２照射手段１０２，１０４の各ＬＥＤ１１０，１１４が点灯されると、第１照射手段１０２のＬＥＤ１１０からの光はカバー体の上端部を通して外部に照射され、また第２照射手段１０４のＬＥＤ１１４からの光はカバー体の側部を通して外部に照射され、これによりカバー体に付されたタクシー会社名の文字などを夜間に視認することができる。   A translucent cover body (not shown) is disposed outside the LED illumination lamp 100. When the LEDs 110 and 114 of the first and second irradiation means 102 and 104 are turned on, the first irradiation means is provided. The light from the LED 110 of 102 is irradiated to the outside through the upper end portion of the cover body, and the light from the LED 114 of the second irradiation means 104 is irradiated to the outside through the side portion of the cover body, whereby the taxi attached to the cover body The company name can be seen at night.

実用新案登録第３１０８２６０号公報Utility Model Registration No. 3108260

しかしながら、上述のようなＬＥＤ１１０，１１４の配置では、第１照射手段１０２のＬＥＤ１１０からの光による照射範囲と第２照射手段１１４のＬＥＤ１１４からの光による照射範囲との間の範囲における照度が低下してしまい、照射ムラが生じてしまうという問題がある。   However, in the arrangement of the LEDs 110 and 114 as described above, the illuminance in the range between the irradiation range from the LED 110 of the first irradiation unit 102 and the irradiation range from the LED 114 of the second irradiation unit 114 decreases. As a result, there is a problem that uneven irradiation occurs.

本発明の目的は、照射ムラを低減することができるＬＥＤ照明灯を提供することである。   An object of the present invention is to provide an LED illumination lamp that can reduce irradiation unevenness.

本発明の請求項１に記載のＬＥＤ照明灯では、フレキシブルプリント配線基板と、前記フレキシブルプリント配線基板に実装される複数のＬＥＤと、前記フレキシブルプリント配線基板を保持するための保持手段と、を備えたＬＥＤ照明灯であって、
前記保持手段は、前記フレキシブルプリント配線基板を保持する保持部と、前記保持部の基端部に取り付けられた口金部と、を備え、前記保持部の外周面には、その先端部から基端部に向けてスカート状に拡がる装着面が設けられ、前記フレキシブルプリント配線基板は前記装着面に装着され、前記複数のＬＥＤが前記装着面に周方向に間隔を置いて配設されることを特徴とする。 The LED illumination lamp according to claim 1 of the present invention includes a flexible printed wiring board, a plurality of LEDs mounted on the flexible printed wiring board, and a holding unit for holding the flexible printed wiring board. LED lighting,
The holding means includes a holding portion that holds the flexible printed circuit board, and a base portion that is attached to a base end portion of the holding portion. A mounting surface that extends in a skirt shape is provided toward the portion, the flexible printed wiring board is mounted on the mounting surface, and the plurality of LEDs are disposed on the mounting surface at intervals in the circumferential direction. And

また、本発明の請求項２に記載のＬＥＤ照明灯では、前記保持部は多角錐台状に構成され、その外周面には前記装着面が複数設けられ、前記複数の装着面の各々には前記ＬＥＤが配設されることを特徴とする。   Moreover, in the LED illumination lamp according to claim 2 of the present invention, the holding portion is configured in a polygonal frustum shape, and a plurality of the mounting surfaces are provided on an outer peripheral surface thereof, and each of the plurality of mounting surfaces is provided. The LED is disposed.

さらに、本発明の請求項３に記載のＬＥＤ照明灯では、前記複数のＬＥＤに関連して、前記複数のＬＥＤを点灯制御するための点灯制御回路が更に設けられ、前記フレキシブルプリント配線基板は、前記複数のＬＥＤが実装される照射領域と、前記点灯制御回路が実装される回路領域と、を有し、前記照射領域は切欠きを有する円環状に構成され、前記回路領域は前記照射領域の一端部から延びて設けられ、前記保持部には、前記口金部の内部空間に連通されるスリットが設けられており、
前記照射領域は湾曲した状態で前記装着面に装着され、前記回路領域は前記スリットを通して前記口金部の前記内部空間に収容されることを特徴とする。 Furthermore, in the LED illumination lamp according to claim 3 of the present invention, a lighting control circuit for controlling lighting of the plurality of LEDs is further provided in association with the plurality of LEDs, and the flexible printed wiring board includes: An irradiation region on which the plurality of LEDs are mounted; and a circuit region on which the lighting control circuit is mounted. The irradiation region is configured in an annular shape having a notch, and the circuit region is formed on the irradiation region. Provided extending from one end, the holding portion is provided with a slit communicating with the internal space of the base portion,
The irradiation area is mounted on the mounting surface in a curved state, and the circuit area is accommodated in the internal space of the base through the slit.

また、本発明の請求項４に記載のＬＥＤ照明灯では、前記回路領域には、前記点灯制御回路に電気的に接続された第１及び第２端子部が設けられ、前記第１端子部は、前記回路領域から所定方向に延び、前記第２端子部は、前記回路領域から前記所定方向に対して実質上垂直方向に延びており、前記口金部の基端部には第１電極部が設けられ、またその外周部には第２電極部が設けられ、前記回路領域が前記口金部の前記内部空間に収容された状態において、前記回路領域の前記第１及び第２端子部はそれぞれ前記口金部の前記第１及び第２電極部に電気的に接続されることを特徴とする。   Moreover, in the LED illumination lamp according to claim 4 of the present invention, the circuit region is provided with first and second terminal portions electrically connected to the lighting control circuit, and the first terminal portion is The second terminal portion extends from the circuit region in a direction substantially perpendicular to the predetermined direction, and a first electrode portion is provided at a base end portion of the base portion. And the second electrode portion is provided on the outer peripheral portion thereof, and the first and second terminal portions of the circuit region are respectively in the state where the circuit region is accommodated in the internal space of the base portion. It is electrically connected to the first and second electrode portions of the base portion.

さらに、本発明の請求項５に記載のＬＥＤ照明灯では、前記点灯制御回路は、前記複数のＬＥＤの各々に流れる直流電流を定電流に調節するための定電流回路を有していることを特徴とする。   Furthermore, in the LED illumination lamp according to claim 5 of the present invention, the lighting control circuit has a constant current circuit for adjusting a direct current flowing through each of the plurality of LEDs to a constant current. Features.

また、本発明の請求項６に記載のＬＥＤ照明灯では、前記ＬＥＤからの光の照射範囲は１１０〜１３０°であり、前記保持部の軸線に対する前記装着面の傾斜角度は３０〜６０°であることを特徴とする。   In the LED illumination lamp according to claim 6 of the present invention, the irradiation range of light from the LED is 110 to 130 °, and the inclination angle of the mounting surface with respect to the axis of the holding portion is 30 to 60 °. It is characterized by being.

本発明の請求項１に記載のＬＥＤ照明灯によれば、保持部の外周面には、その先端部から基端部に向けてスカート状に拡がる装着面が設けられ、複数のＬＥＤがこの装着面に周方向に間隔を置いて配設されるので、各ＬＥＤからの光の配光は次のようになる。即ち、垂直方向において、各ＬＥＤからの光はＬＥＤ照明灯の上方から下方近傍までをカバーし、また水平方向において、各ＬＥＤからの光はＬＥＤ照明灯の全周方向をカバーする。これにより、複数のＬＥＤからの光は外側に向けてほぼ均一に照射されるようになり、照射ムラを低減することができる。   According to the LED illumination lamp of the first aspect of the present invention, the outer peripheral surface of the holding portion is provided with a mounting surface that expands in a skirt shape from the distal end portion toward the proximal end portion, and a plurality of LEDs are mounted on the outer peripheral surface. Since the surface is arranged at intervals in the circumferential direction, the light distribution from each LED is as follows. That is, in the vertical direction, the light from each LED covers from the upper part to the lower vicinity of the LED illumination lamp, and in the horizontal direction, the light from each LED covers the entire circumferential direction of the LED illumination lamp. Thereby, the light from a plurality of LEDs is irradiated almost uniformly toward the outside, and uneven irradiation can be reduced.

また、本発明の請求項２に記載のＬＥＤ照明灯によれば、保持部は多角錐台状に構成され、その外周面に設けられた複数の装着面の各々にＬＥＤが配設されるので、ＬＥＤを装着面に対して安定的に配設することができる。   According to the LED illumination lamp of claim 2 of the present invention, the holding portion is configured in a polygonal frustum shape, and the LEDs are disposed on each of the plurality of mounting surfaces provided on the outer peripheral surface thereof. The LED can be stably disposed on the mounting surface.

さらに、本発明の請求項３に記載のＬＥＤ照明灯によれば、回路領域が口金部の内部空間に収容されるので、ＬＥＤを点灯制御するための点灯制御回路をＬＥＤ照明灯の内部に配設することができ、ＬＥＤ照明灯全体の大きさをコンパクトにすることができる。   Furthermore, according to the LED illumination lamp of claim 3 of the present invention, since the circuit area is accommodated in the internal space of the base part, a lighting control circuit for controlling the lighting of the LED is arranged inside the LED illumination lamp. The size of the entire LED lighting can be made compact.

また、本発明の請求項４に記載のＬＥＤ照明灯によれば、回路領域の第１及び第２端子部はそれぞれ口金部の第１及び第２電極部に電気的に接続されるので、口金部に対する回路領域の固定と、点灯制御回路と口金部との電気的接続とを容易に行うことができる。   According to the LED illumination lamp of claim 4 of the present invention, the first and second terminal portions of the circuit area are electrically connected to the first and second electrode portions of the base portion, respectively. It is possible to easily fix the circuit area to the part and electrically connect the lighting control circuit to the base part.

さらに、本発明の請求項５に記載のＬＥＤ照明灯によれば、点灯制御回路は定電流回路を有しているので、例えば車載用バッテリや携帯用バッテリなどの蓄電池からの直流電力により各ＬＥＤを点灯させる場合において、蓄電池からの直流電圧が変動した場合であっても、各ＬＥＤに安定した直流電流を供給することができる。   Furthermore, according to the LED illumination lamp of claim 5 of the present invention, since the lighting control circuit has a constant current circuit, each LED is driven by direct current power from a storage battery such as a vehicle-mounted battery or a portable battery. In the case where the LED is turned on, even if the DC voltage from the storage battery fluctuates, a stable DC current can be supplied to each LED.

また、本発明の請求項６に記載のＬＥＤ照明灯によれば、ＬＥＤからの光の照射範囲は１１０〜１３０°であり、装着面の保持部の軸線に対する傾斜角度は３０〜６０°であるので、複数のＬＥＤからの光を外側に向けてより均一に照射することができ、照射ムラをより効果的に低減することができる。   According to the LED illumination lamp of the sixth aspect of the present invention, the irradiation range of the light from the LED is 110 to 130 °, and the inclination angle of the mounting surface holding portion with respect to the axis is 30 to 60 °. Therefore, the light from the plurality of LEDs can be irradiated more uniformly toward the outside, and the irradiation unevenness can be more effectively reduced.

以下、添付図面を参照して、本発明に従うＬＥＤ照明灯の一実施形態について説明する。図１は、本発明の一実施形態によるＬＥＤ照明灯を示す斜視図であり、図２は、図１のＬＥＤ照明灯を示す断面斜視図であり、図３は、図１中のＡ−Ａ線によるＬＥＤ照明灯の概略断面図であり、図４は、図１の保持手段を示す分解斜視図であり、図５は、図１のフレキシブルプリント配線基板を示す展開図であり、図６は、図１の各ＬＥＤからの光の配光を示す概略図である。   Hereinafter, an embodiment of an LED illumination lamp according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing an LED illumination lamp according to an embodiment of the present invention, FIG. 2 is a cross-sectional perspective view showing the LED illumination lamp of FIG. 1, and FIG. FIG. 4 is an exploded perspective view showing the holding means of FIG. 1, FIG. 5 is a development view showing the flexible printed wiring board of FIG. 1, and FIG. FIG. 2 is a schematic diagram showing light distribution from each LED in FIG. 1.

図１〜図６を参照して、図示のＬＥＤ照明灯２は、フレキシブルプリント配線基板４と、フレキシブルプリント配線基板４に実装される複数（本実施形態では６個）のＬＥＤ６と、フレキシブルプリント配線基板４を保持するための保持手段８と、を備えている。以下、これら各構成要素について詳細に説明する。   1 to 6, the illustrated LED lighting lamp 2 includes a flexible printed wiring board 4, a plurality of (six in this embodiment) LEDs 6 mounted on the flexible printed wiring board 4, and a flexible printed wiring. Holding means 8 for holding the substrate 4. Hereinafter, each of these components will be described in detail.

ＬＥＤ６は、例えばチップ型の高輝度ＬＥＤから構成されている。ＬＥＤ６からの光はその光軸を中心に立体角状に拡がった配光をなし、ＬＥＤ６からの光の大部分は、光軸を中心とした所定範囲の立体角θ（即ち、照射角度範囲θ）（図３及び図６参照）内に照射される。本実施形態では、ＬＥＤ６からの光の照射角度範囲θは約１２０°に構成されている。   The LED 6 is composed of, for example, a chip-type high brightness LED. The light from the LED 6 has a light distribution that spreads in a solid square shape around the optical axis, and most of the light from the LED 6 has a predetermined solid angle θ (that is, an irradiation angle range θ around the optical axis). ) (See FIGS. 3 and 6). In the present embodiment, the irradiation angle range θ of the light from the LED 6 is configured to be about 120 °.

フレキシブルプリント配線基板４は、可撓性を有するシート状に構成され、切欠きを有する円環状の照射領域１０と、照射領域１０の一端部から延びる回路領域１２と、を有している（図５参照）。照射領域１０の片面には配線パターン（図示せず）が設けられ、この配線パターンには複数のＬＥＤ６が間隔を置いて実装されている。照射領域１０の片面（即ち、ＬＥＤ６の実装面）は、透明のシリコン樹脂により形成された防水用コーティング層によって覆われている。また、照射領域１０の外周部には折曲げ用凹部１３が複数設けられており、この折曲げ用凹部１３に沿って照射領域１０を折り曲げることができる。回路領域１２の片面には配線パターン（図示せず）が設けられ、この配線パターンには、ＬＥＤ６を点灯制御するための点灯制御回路１４（後述する）を構成する複数の電子回路部品１６が実装されている。また、回路領域１２には、点灯制御回路１４に電気的に接続された第１及び第２端子部１８，２０が設けられている。第１端子部１８は、回路領域１２から所定方向（図５において下方向）に延び、第２端子部２０は、回路領域１２から上記所定方向に対して実質上垂直方向（図５において横方向）に延びている。   The flexible printed wiring board 4 is configured in a flexible sheet shape, and has an annular irradiation region 10 having a notch, and a circuit region 12 extending from one end of the irradiation region 10 (FIG. 5). A wiring pattern (not shown) is provided on one side of the irradiation region 10, and a plurality of LEDs 6 are mounted on the wiring pattern at intervals. One surface of the irradiation region 10 (that is, the mounting surface of the LED 6) is covered with a waterproof coating layer formed of a transparent silicon resin. In addition, a plurality of bending recesses 13 are provided on the outer peripheral portion of the irradiation region 10, and the irradiation region 10 can be bent along the bending recesses 13. A wiring pattern (not shown) is provided on one side of the circuit region 12, and a plurality of electronic circuit components 16 constituting a lighting control circuit 14 (described later) for controlling the lighting of the LED 6 are mounted on this wiring pattern. Has been. The circuit region 12 is provided with first and second terminal portions 18 and 20 that are electrically connected to the lighting control circuit 14. The first terminal portion 18 extends from the circuit region 12 in a predetermined direction (downward in FIG. 5), and the second terminal portion 20 extends from the circuit region 12 in a direction substantially perpendicular to the predetermined direction (lateral direction in FIG. 5). ).

点灯制御回路１４は、本実施形態では、各ＬＥＤ６に供給される直流電流を定電流に調節するための定電流回路から構成されている。この定電流回路は、例えば三端子レギュレータなどから構成されている。   In the present embodiment, the lighting control circuit 14 includes a constant current circuit for adjusting the direct current supplied to each LED 6 to a constant current. This constant current circuit is composed of, for example, a three-terminal regulator.

保持手段８は、保持部２２と、保持部２２の基端部に取り付けられる口金部２４と、を備えている（図１〜図４参照）。保持部２２は、保持本体部２６と、保持本体部２６の基端部より延びる半円筒状の一対の固定部２８と、を有している。保持本体部２６は多角錐台状（本実施形態では六角錐台状）に構成され、保持本体部２６の外周面は、その先端部から基端部に向けてスカート状に拡がっている。これにより、保持本体部２６の外周面には、複数（本実施形態では６個）の装着面３０が周方向に隣接して設けられている。本実施形態では、保持部２２の軸線Ｃに対する装着面３０の傾斜角度φ（図３参照）は約３０°に構成されている。保持本体部２６には、その先端部から基端部に向けて延びるスリット３２が設けられ、また一対の固定部２８の間には、このスリット３２に連通される収容空間３４が形成されている。   The holding means 8 includes a holding portion 22 and a base portion 24 attached to the base end portion of the holding portion 22 (see FIGS. 1 to 4). The holding part 22 has a holding main body part 26 and a pair of semi-cylindrical fixing parts 28 extending from the base end part of the holding main body part 26. The holding main body portion 26 is configured in a polygonal frustum shape (in this embodiment, a hexagonal frustum shape), and the outer peripheral surface of the holding main body portion 26 extends in a skirt shape from the distal end portion toward the base end portion. Thus, a plurality (six in this embodiment) of mounting surfaces 30 are provided on the outer peripheral surface of the holding main body portion 26 so as to be adjacent in the circumferential direction. In the present embodiment, the inclination angle φ (see FIG. 3) of the mounting surface 30 with respect to the axis C of the holding portion 22 is configured to be about 30 °. The holding main body portion 26 is provided with a slit 32 extending from the distal end portion toward the proximal end portion, and an accommodation space 34 communicating with the slit 32 is formed between the pair of fixing portions 28. .

口金部２４は容器状に構成され、その先端部には開口部３６が設けられている。口金部２４の開口部３６には一対の固定部２８が挿入され、例えば接着剤により両者が固定される。口金部２４の基端部には第１電極部３８が設けられ、またその外周面には第２電極部４０が設けられている。第１電極部３８と第２電極部４０との間には絶縁部４２が設けられ、この絶縁部４２によって第１及び第２電極部３８，４０は電気的に絶縁されている。また、口金部２４の外周面の基端部側には、口金部２４をソケット４４（後述する）に装着するための一対の突部４６が設けられている。   The base part 24 is formed in a container shape, and an opening 36 is provided at the tip part thereof. A pair of fixing portions 28 are inserted into the opening 36 of the base portion 24, and both are fixed by, for example, an adhesive. A first electrode portion 38 is provided at the base end portion of the base portion 24, and a second electrode portion 40 is provided on the outer peripheral surface thereof. An insulating part 42 is provided between the first electrode part 38 and the second electrode part 40, and the first and second electrode parts 38, 40 are electrically insulated by the insulating part 42. A pair of protrusions 46 for mounting the base part 24 to a socket 44 (described later) is provided on the base end side of the outer peripheral surface of the base part 24.

フレキシブルプリント配線基板４は、次のようにして保持手段８に保持される。複数のＬＥＤ６が凸面側に配設されるようにして、照射領域１０の両端部を相互に近接保持するとともに複数の折曲げ用凹部１３に沿って折り曲げることにより、照射領域１０が湾曲されて多角錐台状に保持され、この湾曲状態で照射領域１０が保持本体部２６の外周面に例えば接着剤により装着される。このように装着されると、保持本体部２６の各装着面３０にＬＥＤ６が装着される。また、照射領域１０と回路領域１２との接続部４８が保持本体部２６のスリット３２に沿って折り曲げられ、回路領域１２がスリット３２及び収容空間３４を通して口金部２４の内部空間５０に収容される。更に、第１端子部１８が第１電極部３８にハンダ付けにより電気的に接続されるとともに、第２端子部２０が口金部２４の開口縁部５２（即ち、第２電極部４０）にハンダ付けにより電気的に接続される（図３参照）。   The flexible printed wiring board 4 is held by the holding means 8 as follows. The plurality of LEDs 6 are arranged on the convex surface side, and both ends of the irradiation region 10 are held close to each other and bent along the plurality of bending recesses 13, so that the irradiation region 10 is curved and has a large number. It is held in a truncated pyramid shape, and the irradiation region 10 is attached to the outer peripheral surface of the holding main body 26 with an adhesive, for example, in this curved state. When mounted in this manner, the LED 6 is mounted on each mounting surface 30 of the holding body 26. Further, the connection portion 48 between the irradiation region 10 and the circuit region 12 is bent along the slit 32 of the holding main body portion 26, and the circuit region 12 is accommodated in the internal space 50 of the base portion 24 through the slit 32 and the accommodation space 34. . Further, the first terminal portion 18 is electrically connected to the first electrode portion 38 by soldering, and the second terminal portion 20 is soldered to the opening edge portion 52 (that is, the second electrode portion 40) of the base portion 24. It is electrically connected by attaching (see FIG. 3).

上述したＬＥＤ照明灯２の使用方法について説明すると、次の通りである。ＬＥＤ照明灯２は、例えばタクシーの屋根５４上に設けられた表示灯の光源として用いられ、かかる場合において、ＬＥＤ照明灯２の外側には例えば半透明且つ球面状のカバー体５６が配設される（図３参照）。ＬＥＤ照明灯２の口金部２４は、タクシーの屋根５４上に設けられたソケット４４に着脱自在に装着され、これにより第１電極部３８にはソケット４４の陽極端子部（図示せず）が電気的に接続され、また第２電極部４０にはソケット４４の陰極端子部（図示せず）が電気的に接続される。車載用バッテリ（図示せず）からの直流電力がソケット４４の陽極端子部及び陰極端子部を介して口金部２４の第１及び第２電極部３８，４０に供給されると、この直流電力は、点灯制御回路１４により定電流に調節された後に各ＬＥＤ６に供給される。   It will be as follows if the usage method of the LED lighting 2 mentioned above is demonstrated. The LED illumination lamp 2 is used as a light source of an indicator lamp provided on a taxi roof 54, for example. In such a case, a translucent and spherical cover body 56 is disposed outside the LED illumination lamp 2, for example. (See FIG. 3). The base portion 24 of the LED lighting lamp 2 is detachably attached to a socket 44 provided on a taxi roof 54, whereby an anode terminal portion (not shown) of the socket 44 is electrically connected to the first electrode portion 38. The cathode terminal part (not shown) of the socket 44 is electrically connected to the second electrode part 40. When DC power from an in-vehicle battery (not shown) is supplied to the first and second electrode portions 38 and 40 of the base portion 24 via the anode terminal portion and the cathode terminal portion of the socket 44, the DC power is After being adjusted to a constant current by the lighting control circuit 14, it is supplied to each LED 6.

本実施形態のＬＥＤ照明灯２では、複数のＬＥＤ６は上述のように配置されているので、垂直方向において、各ＬＥＤ６からの光はカバー体５６の上端部から下端部近傍までをカバーし（図３参照）、また水平方向において、各ＬＥＤ６からの光はカバー体５６の全周方向をカバーする（図６参照）。これにより、各ＬＥＤ６からの光はカバー体５６のほぼ全域に向けて照射されるようになり、照射ムラを低減することができる。また、点灯制御回路１４により定電流に調整された直流電流が各ＬＥＤ６に供給されるので、車載用バッテリからの直流電圧が変動した場合であっても、各ＬＥＤ６に安定した直流電流を供給することができ、各ＬＥＤ６からの光の照度を安定的に保持することができる。また、保持本体部２６は多角錐台状に構成されているので、多角錐状に構成した場合のように保持本体部２６は頂部を有しておらず、それ故に、各ＬＥＤ６からカバー体５６の上端部に向けて照射される光が保持本体部２６により遮られることがない。   In the LED illuminating lamp 2 of the present embodiment, since the plurality of LEDs 6 are arranged as described above, the light from each LED 6 covers from the upper end portion of the cover body 56 to the vicinity of the lower end portion in the vertical direction (see FIG. 3), and in the horizontal direction, the light from each LED 6 covers the entire circumferential direction of the cover body 56 (see FIG. 6). Thereby, the light from each LED 6 comes to be irradiated toward almost the entire area of the cover body 56, and the irradiation unevenness can be reduced. Further, since a direct current adjusted to a constant current by the lighting control circuit 14 is supplied to each LED 6, a stable direct current is supplied to each LED 6 even when the direct current voltage from the vehicle-mounted battery fluctuates. The illuminance of light from each LED 6 can be stably maintained. Further, since the holding main body portion 26 is configured in a polygonal frustum shape, the holding main body portion 26 does not have a top portion as in the case of the polygonal pyramid shape, and therefore, each LED 6 to the cover body 56. The light irradiated toward the upper end of the holding body 26 is not blocked by the holding body 26.

なお、本実施形態では、ＬＥＤ６からの光の照射角度範囲θを約１２０°、装着面３０の傾斜角度φを約３０°に構成したが、照射角度範囲θは１１０〜１３０°の範囲であるのが好ましく、このような範囲の場合には、装着面３０の傾斜角度φは３０〜６０°に構成するのが好ましい。装着面３０の傾斜角度φが３０°よりも小さいと、各ＬＥＤ６からカバー体５６の上端部に向けて照射される光の照度が低下し、また、傾斜角度φが６０°よりも大きいと、各ＬＥＤ６からカバー体５６の下端部に向けて照射される光の照度が低下する。   In this embodiment, the irradiation angle range θ of the light from the LED 6 is configured to be about 120 ° and the inclination angle φ of the mounting surface 30 is set to about 30 °. However, the irradiation angle range θ is in the range of 110 to 130 °. In such a range, the inclination angle φ of the mounting surface 30 is preferably 30 to 60 °. When the inclination angle φ of the mounting surface 30 is smaller than 30 °, the illuminance of light emitted from each LED 6 toward the upper end portion of the cover body 56 decreases, and when the inclination angle φ is larger than 60 °, The illuminance of light emitted from each LED 6 toward the lower end portion of the cover body 56 decreases.

また、本実施形態では、ＬＥＤ照明灯２をタクシーの屋根５４上に設けられる表示灯の光源として用いたが、例えば赤色灯や車両のウインカーなどの種々の照明灯具の光源として用いることができる。   In the present embodiment, the LED illumination lamp 2 is used as a light source of an indicator lamp provided on the roof 54 of the taxi. However, the LED illumination lamp 2 can be used as a light source of various illumination lamps such as a red lamp and a blinker of a vehicle.

次に、図７を参照して、ＬＥＤ照明灯の他の実施形態について説明する。図７は、本発明の他の実施形態によるＬＥＤ照明灯の第１及び第２保持部を示す分解斜視図である。本実施形態において、上述した実施形態の構成要素と同一の構成要素には同一の符号を付して、その説明を省略する。   Next, with reference to FIG. 7, another embodiment of the LED illumination lamp will be described. FIG. 7 is an exploded perspective view showing first and second holding portions of an LED lighting lamp according to another embodiment of the present invention. In the present embodiment, the same components as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

この他の実施形態のＬＥＤ照明灯２Ａでは、保持手段８Ａは、相互に組み合わされる第１及び第２保持部５８，６０と、これら第１及び第２保持部５８，６０の基端部に取り付けられる口金部（図示せず）と、を備えている。第１保持部５８は、半多角錐台状（本実施形態では半六角錐台状）の第１保持本体部６２と、第１保持本体部６２の基端部より延びる半円筒状の第１固定部６４と、を有している。第１保持本体部６２の外周面の一端部にはスリット凹部６６が設けられ、また、第１保持本体部６２の外周面の内側には複数の係合突部６８が設けられている。第２保持部６０は、半多角錐台状（本実施形態では半六角錐台状）の第２保持本体部７０と、第２保持本体部７０の基端部より延びる半円筒状の第２固定部７２と、を有している。第２保持本体部７０の外周面の内側には、第１保持本体部６２の複数の係合突部６８に対応して複数の係合凹部７４が設けられている。   In the LED illuminating lamp 2A of this other embodiment, the holding means 8A is attached to the first and second holding portions 58, 60 combined with each other and the base end portions of the first and second holding portions 58, 60. A base part (not shown). The first holding part 58 has a semi-polygonal frustum-shaped (half-hexagonal frustum-shaped in this embodiment) first holding main body part 62 and a semi-cylindrical first extending from the base end part of the first holding main body part 62. And a fixing portion 64. A slit recess 66 is provided at one end of the outer peripheral surface of the first holding main body 62, and a plurality of engaging protrusions 68 are provided inside the outer peripheral surface of the first holding main body 62. The second holding unit 60 is a semi-polygonal frustum-shaped (half-hexagonal frustum-shaped in this embodiment) second holding main body 70 and a semi-cylindrical second extending from the base end of the second holding main body 70. And a fixing portion 72. On the inner side of the outer peripheral surface of the second holding main body portion 70, a plurality of engaging concave portions 74 are provided corresponding to the plurality of engaging protrusions 68 of the first holding main body portion 62.

係合突部６８が係合凹部７４に係合されるようにして第１及び第２保持部５８，６０が相互に組み合わされると、第１保持本体部６２と第２保持本体部７０との接合部には、スリット凹部６６によってスリットが形成される。このようにして組み合わされた第１及び第２保持部５８，６０は、上記実施形態の保持部２２とほぼ同様の形状に構成される。   When the first and second holding portions 58 and 60 are combined with each other such that the engaging protrusion 68 is engaged with the engaging recess 74, the first holding body portion 62 and the second holding body portion 70 A slit is formed by a slit recess 66 in the joint. The first and second holding portions 58 and 60 combined in this way are configured in a shape substantially similar to the holding portion 22 of the above embodiment.

以上、本発明に従う種々のＬＥＤ照明灯の実施形態について説明したが、本発明はかかる実施形態に限定されるものではなく、本発明の範囲を逸脱することなく種々の変形乃至修正が可能である。   As mentioned above, although embodiment of the various LED illumination light according to this invention was described, this invention is not limited to this embodiment, A various deformation | transformation thru | or correction | amendment are possible without deviating from the scope of the present invention. .

例えば、上記各実施形態では、保持部２２（第１及び第２保持部５８，６０）を六角錐台状に構成したが、五角錐台状や七角錐台状、八角錐台状など適宜の多角錐台状に構成することができる。あるいは、円錐台状、多角錐状又は円錐状に構成するようにしてもよい。   For example, in each of the above-described embodiments, the holding unit 22 (first and second holding units 58 and 60) is configured in a hexagonal truncated pyramid shape. It can be configured in a polygonal frustum shape. Or you may make it comprise a truncated cone shape, a polygonal pyramid shape, or a cone shape.

本発明の一実施形態によるＬＥＤ照明灯を示す斜視図である。It is a perspective view which shows the LED illumination light by one Embodiment of this invention. 図１のＬＥＤ照明灯を示す断面斜視図である。It is a cross-sectional perspective view which shows the LED illuminating lamp of FIG. 図１中のＡ−Ａ線によるＬＥＤ照明灯の概略断面図である。It is a schematic sectional drawing of the LED illumination light by the AA line in FIG. 図１の保持手段を示す分解斜視図である。It is a disassembled perspective view which shows the holding means of FIG. 図１のフレキシブルプリント配線基板を示す展開図である。It is an expanded view which shows the flexible printed wiring board of FIG. 図１の各ＬＥＤからの光の配光を示す概略図である。It is the schematic which shows the light distribution of light from each LED of FIG. 本発明の他の実施形態によるＬＥＤ照明灯の第１及び第２保持部を示す分解斜視図である。It is a disassembled perspective view which shows the 1st and 2nd holding | maintenance part of the LED lighting lamp by other embodiment of this invention. 従来のＬＥＤ照明灯を示す斜視図である。It is a perspective view which shows the conventional LED illumination light.

符号の説明Explanation of symbols

２，２Ａ，１００ ＬＥＤ照明灯
４ フレキシブルプリント配線基板
６，１１０，１１４ ＬＥＤ
８，８Ａ 保持手段
１０ 照射領域
１２ 回路領域
１４ 点灯制御手段
１８ 第１端子部
２０ 第２端子部
２２ 保持部
２４ 口金部
３０ 装着面
３２ スリット
３８ 第１電極部
４０ 第２電極部
５０ 内部空間
５８ 第１保持部
６０ 第２保持部 2,2A, 100 LED lighting 4 Flexible printed circuit board 6,110,114 LED
8, 8A Holding means 10 Irradiation area 12 Circuit area 14 Lighting control means 18 First terminal part 20 Second terminal part 22 Holding part 24 Base part 30 Mounting surface 32 Slit 38 First electrode part 40 Second electrode part 50 Internal space 58 First holding part 60 Second holding part

Claims (6)

フレキシブルプリント配線基板と、前記フレキシブルプリント配線基板に実装される複数のＬＥＤと、前記フレキシブルプリント配線基板を保持するための保持手段と、を備えたＬＥＤ照明灯であって、
前記保持手段は、前記フレキシブルプリント配線基板を保持する保持部と、前記保持部の基端部に取り付けられた口金部と、を備え、前記保持部の外周面には、その先端部から基端部に向けてスカート状に拡がる装着面が設けられ、前記フレキシブルプリント配線基板は前記装着面に装着され、前記複数のＬＥＤが前記装着面に周方向に間隔を置いて配設されることを特徴とするＬＥＤ照明灯。 An LED illumination lamp comprising: a flexible printed wiring board; a plurality of LEDs mounted on the flexible printed wiring board; and a holding means for holding the flexible printed wiring board,
The holding means includes a holding portion that holds the flexible printed circuit board, and a base portion that is attached to a base end portion of the holding portion. A mounting surface that extends in a skirt shape is provided toward the portion, the flexible printed wiring board is mounted on the mounting surface, and the plurality of LEDs are disposed on the mounting surface at intervals in the circumferential direction. LED lighting. 前記保持部は多角錐台状に構成され、その外周面には前記装着面が複数設けられ、前記複数の装着面の各々には前記ＬＥＤが配設されることを特徴とする請求項１に記載のＬＥＤ照明灯。   The said holding | maintenance part is comprised in the shape of a polygonal frustum, The said mounting surface is provided with two or more on the outer peripheral surface, The said LED is arrange | positioned at each of these mounting surfaces. LED lighting as described. 前記複数のＬＥＤに関連して、前記複数のＬＥＤを点灯制御するための点灯制御回路が更に設けられ、前記フレキシブルプリント配線基板は、前記複数のＬＥＤが実装される照射領域と、前記点灯制御回路が実装される回路領域と、を有し、前記照射領域は切欠きを有する円環状に構成され、前記回路領域は前記照射領域の一端部から延びて設けられ、前記保持部には、前記口金部の内部空間に連通されるスリットが設けられており、
前記照射領域は湾曲した状態で前記装着面に装着され、前記回路領域は前記スリットを通して前記口金部の前記内部空間に収容されることを特徴とする請求項１又は２に記載のＬＥＤ照明灯。 A lighting control circuit for controlling lighting of the plurality of LEDs is further provided in relation to the plurality of LEDs, and the flexible printed wiring board includes an irradiation area on which the plurality of LEDs are mounted, and the lighting control circuit. And the irradiation area is formed in an annular shape having a notch, the circuit area is provided to extend from one end of the irradiation area, and the holding portion includes the base There is a slit communicating with the internal space of the part,
The LED illumination lamp according to claim 1 or 2, wherein the irradiation region is mounted on the mounting surface in a curved state, and the circuit region is accommodated in the internal space of the base through the slit. 前記回路領域には、前記点灯制御回路に電気的に接続された第１及び第２端子部が設けられ、前記第１端子部は、前記回路領域から所定方向に延び、前記第２端子部は、前記回路領域から前記所定方向に対して実質上垂直方向に延びており、前記口金部の基端部には第１電極部が設けられ、またその外周部には第２電極部が設けられ、前記回路領域が前記口金部の前記内部空間に収容された状態において、前記回路領域の前記第１及び第２端子部はそれぞれ前記口金部の前記第１及び第２電極部に電気的に接続されることを特徴とする請求項３に記載のＬＥＤ照明灯。   The circuit region is provided with first and second terminal portions electrically connected to the lighting control circuit, the first terminal portion extends in a predetermined direction from the circuit region, and the second terminal portion is The base region of the base part is provided with a first electrode part, and the outer peripheral part thereof is provided with a second electrode part. In the state where the circuit area is accommodated in the internal space of the base part, the first and second terminal parts of the circuit area are electrically connected to the first and second electrode parts of the base part, respectively. The LED illumination lamp according to claim 3, wherein 前記点灯制御回路は、前記複数のＬＥＤの各々に流れる直流電流を定電流に調節するための定電流回路を有していることを特徴とする請求項３又は４に記載のＬＥＤ照明灯。   The LED lighting lamp according to claim 3, wherein the lighting control circuit includes a constant current circuit for adjusting a direct current flowing through each of the plurality of LEDs to a constant current. 前記ＬＥＤからの光の照射角度範囲は１１０〜１３０°であり、前記保持部の軸線に対する前記装着面の傾斜角度は３０〜６０°であることを特徴とする請求項１〜５のいずれかに記載のＬＥＤ照明灯。   The irradiation angle range of light from the LED is 110 to 130 °, and the inclination angle of the mounting surface with respect to the axis of the holding portion is 30 to 60 °. LED lighting as described.
JP2008142225A 2008-05-30 2008-05-30 Led illuminating lamp Withdrawn JP2009289649A (en)

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