JP2007165559A - Light source unit and lighting fixture - Google Patents

Light source unit and lighting fixture Download PDF

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Publication number
JP2007165559A
JP2007165559A JP2005359432A JP2005359432A JP2007165559A JP 2007165559 A JP2007165559 A JP 2007165559A JP 2005359432 A JP2005359432 A JP 2005359432A JP 2005359432 A JP2005359432 A JP 2005359432A JP 2007165559 A JP2007165559 A JP 2007165559A
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Prior art keywords
light source
socket
source unit
substrate
led
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JP2005359432A
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Japanese (ja)
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Kousuke Kashitani
行輔 樫谷
Namio Ito
南海夫 伊藤
Yasuo Shigei
康夫 滋井
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PEARL DENKYU SEISAKUSHO KK
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PEARL DENKYU SEISAKUSHO KK
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Priority to JP2005359432A priority Critical patent/JP2007165559A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively facilitate switching to an LED system with a simple constitution by replacing only a unit of a light source and a substrate without accompanying change or replacement work of a mounting substrate, even if incandescent lamps used for display of switch parts and decorative lamps of an automobile or the like are changed into an LED lighting system. <P>SOLUTION: A light source unit 1 is formed from a socket 3 which is made of a resin molding integrated with a lens having a cavity for storing a light source or a resin molding mounted with the light source, a guide recessed groove 10 formed in an externally protruding flange 9 at the lower part of the socket, a rectangular plate-like light source substrate 2 fixedly fitted into the socket from the guide recessed groove, LEDs 5 of the light source mounted on the surface of the light source substrate, and a protection resistor 6 mounted on the surface or the rear face of the light source substrate. When the light source unit is installed at a prescribed position on a wiring substrate 17, an element side electrode 16 protrudingly provided on the upper face of the light source substrate is brought into contact with a power supply side electrode 18 provided onto the rear face of the wiring substrate. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、発光ダイオード(LED)を実装した光源基板をソケットに固着した光源ユニット、及びこの光源ユニットで形成した照明装置に関する。   The present invention relates to a light source unit in which a light source substrate on which a light emitting diode (LED) is mounted is fixed to a socket, and an illumination device formed with the light source unit.

半導体特性を利用した光源である発光ダイオード(以下、「LED」という。)の技術改良は著しく、1993年に青色LEDが実用化され、1995年には緑色LEDが実用化されて光の3原色が出揃ったことで1996年には白色LEDが実用化され、高輝度化や発光色の多色化ととともに携帯機器等の照明用途への展開が多くなっている。これに伴い、家電製品や車のスイッチ部、あるいは信号等の表示用ランプや装飾用ランプについても、これまで主に使用されてきた白熱電球に対して、消費電力が少ないとともに寿命が長く、小型化、薄型化が可能なLEDへの変換が進んでいる。   The technological improvements of light emitting diodes (hereinafter referred to as “LEDs”), which are light sources using semiconductor characteristics, are remarkable. Blue LEDs were put into practical use in 1993, and green LEDs were put into practical use in 1995. As a result, white LEDs were put into practical use in 1996, and the use in lighting applications such as portable devices is increasing along with the increase in brightness and the increase in emission color. As a result, consumer electronics, car switches, and signal and display lamps and decorative lamps are smaller and consume less power than conventional incandescent lamps that have been used mainly so far. Conversion to LEDs that can be made thinner and thinner is in progress.

一方、LEDランプを基板に装着した発光体を本体側に装着するには、従来より種々の構成が実施されており、近年では、図14に示すように、発光体(51)を配線基板(67)の装着部(70)に対して着脱自在に設けるとともに、発光体(51)は、LED素子(55)が実装される基板(52)と、LED素子に接続される素子側電極(66)と、LED素子(55)を被覆する透光性部材(53)とを備え、装着部(70)に発光体(51)が装着されたときには素子側電極(66)が本体側電極(68)に電気的に接続するように構成し、故障の場合には、発光体(51)のみの交換を可能にして配線基板(67)全体の交換をなくすようにし、故障時の修理を低コストでおこなうとともに修理時間を短くした電子機器が提案されている(特許文献1参照)。   On the other hand, in order to mount the light emitter with the LED lamp mounted on the substrate on the main body side, various configurations have been conventionally performed. In recent years, as shown in FIG. 67) is detachably attached to the mounting portion (70), and the light emitter (51) includes a substrate (52) on which the LED element (55) is mounted, and an element side electrode (66) connected to the LED element. ) And a translucent member (53) that covers the LED element (55), and when the light emitter (51) is mounted on the mounting portion (70), the element side electrode (66) is the main body side electrode (68). In the case of a failure, only the light emitter (51) can be replaced, eliminating the need to replace the entire wiring board (67), and repairing at the time of failure is low cost. In addition, an electronic device has been proposed in which the repair time is shortened (see Patent Document 1).

上記特許文献1に記載されている発光体(51)の構成は、LED素子(55)が実装された矩形状の基板(52)の上面に、LED素子(55)を被覆するドーム型の樹脂からなる透光性部材(53)を載置したものであって、透光性部材(53)と基板(52)との固着構成については触れられていない。
特開2004−266168号公報
The structure of the light emitter (51) described in Patent Document 1 is a dome-shaped resin that covers the LED element (55) on the upper surface of a rectangular substrate (52) on which the LED element (55) is mounted. The translucent member (53) which consists of this is mounted | worn, Comprising: The adhering structure of a translucent member (53) and a board | substrate (52) is not touched.
JP 2004-266168 A

上記に照らして、例えば、現状の自動車等におけるスイッチ部の照明装置の構成を考えた場合、通常、従来の白熱電球からLEDによる照明方式に変更した際には、電球とLED発光体の取着構成が相違し互換性がないことから、光源の装着部である配線基板(67)側の形状をも変更する必要があり、多様な基板成形型を個々に対応して変更するためには製造設備を含めて多大なコストアップをともなう問題がある。   In light of the above, for example, when considering the configuration of a lighting device for a switch unit in a current automobile or the like, when changing from a conventional incandescent light bulb to an LED lighting method, attachment of the light bulb and the LED light emitter Since the configuration is different and there is no compatibility, it is necessary to change the shape of the wiring board (67) side, which is the mounting part of the light source, and it is manufactured to change various board molds individually. There is a problem with a great increase in costs including equipment.

また、光源回路におけるLEDの保護回路であり、電源部からの電圧を低減するためにLEDに直列接続される抵抗は、本体側の配線基板(67)等に配設されており、その抵抗値はLEDの規格に沿って設けられていることから、LEDを実装した光源基板(52)をより容量の大きなタイプ等に取り替えた場合は、前記抵抗をも取り替える必要を生じ、配線基板の変更とともに、修理交換作業が煩雑になっていた。   Moreover, it is a protection circuit for the LED in the light source circuit, and the resistor connected in series with the LED in order to reduce the voltage from the power supply unit is disposed on the wiring board (67) on the main body side, and its resistance value Is provided in accordance with the LED standard, so when the light source board (52) on which the LED is mounted is replaced with a type having a larger capacity, it is necessary to replace the resistor as well. Repair and replacement work was complicated.

本発明は上記点を考慮してなされたもので、家電製品や自動車のスイッチ部等の表示用ランプや装飾用ランプに使用されている白熱電球をLEDによる照明方式に変更しても、実装基板の変更や交換作業をともなうことなく光源と基板とのユニットのみの交換で済むとともに、簡単な構成で安価にLED方式への切り替えを可能とする光源ユニット、及び照明装置を提供することを目的とする。   The present invention has been made in consideration of the above points, and even if the incandescent light bulb used for display lamps and decoration lamps for home appliances and switch parts of automobiles is changed to an illumination system using LEDs, the mounting substrate It is an object to provide a light source unit and a lighting device that can be switched to the LED system at a low cost with a simple configuration while only the unit of the light source and the substrate can be replaced without changing or replacing the light source. To do.

上記課題を解決するために、本発明の請求項1記載の光源ユニットは、ソケットに嵌着して一体化させる光源基板に、発光ダイオードとそれ以外の部品を実装したことを特徴とするものであり、また、請求項6記載の照明装置は、光源部を収納する空洞を形成したレンズ一体型あるいは光源部を載置して一体化した樹脂成形体からなるソケットと、このソケットの下部に外方に突出して設けた鍔部の上面に形成したガイド凹溝と、このガイド凹溝からソケット内に嵌入して固定される矩形板状の光源基板と、この光源基板の表面に実装された光源部である発光ダイオード及び光源基板の表面あるいは裏面に実装した発光ダイオード以外の部品とから光源ユニットを形成し、光源ユニットを配線基板の所定位置に設置した際には光源基板の上面端部に突設した素子側電極が配線基板の裏面に設けた供電側電極に接触するようにしたことを特徴とするものである。   In order to solve the above-mentioned problems, a light source unit according to claim 1 of the present invention is characterized in that a light-emitting diode and other components are mounted on a light source substrate that is fitted into a socket and integrated. In addition, the illumination device according to claim 6 is a lens-integrated type in which a cavity for housing the light source unit is formed or a socket made of a resin molded body in which the light source unit is mounted and integrated, and an outer portion of the socket. Guide groove formed on the upper surface of the flange that protrudes in the direction, a rectangular plate-shaped light source board that is fitted into the socket from the guide groove and fixed, and a light source mounted on the surface of the light source board When the light source unit is formed from a light emitting diode that is a portion and parts other than the light emitting diode mounted on the front or back surface of the light source substrate, and the light source unit is installed at a predetermined position on the wiring substrate, the upper surface of the light source substrate Is characterized in that a projecting the element-side electrode was in contact with the test collector side electrode provided on the back surface of the wiring board section.

本発明の光源ユニットによれば、LEDの仕様変更や故障等でこれを交換するような場合には、LEDとともにLEDの規格に沿った保護抵抗等それ以外の部品が一体に実装された光源基板部のみを交換すればよく、修理交換等の作業時間を短縮できるとともに簡単な構成であることから光源ユニットも容易に製造することができる。また、光源ユニットとしてLEDと抵抗等が一体化されているため、配線基板等本体側の成型品の大幅な型変更をおこなう必要がなく、従来型を継続して使用できるため、光源の白熱電球からLEDによる照明方式への変更やLED容量を増大する際等にも大幅なコストアップを伴わないで安価に移行することができる。   According to the light source unit of the present invention, in the case where the LED is changed due to a specification change or failure, the light source board on which other components such as a protective resistor in accordance with the LED standard are mounted together with the LED. The light source unit can be easily manufactured because the construction time can be shortened and the construction is simple. In addition, since the LED and resistor are integrated as a light source unit, it is not necessary to make a major mold change of the molded product on the main body side such as a wiring board, and the conventional type can be used continuously. When changing from a lighting system to an LED lighting system or increasing the LED capacity, it is possible to shift to a low cost without a significant cost increase.

以下、図面に基づき本発明の1実施形態について説明する。図1に拡大斜視図を示す光源ユニット(1)は、光源基板(2)とこれを嵌着したソケット(3)とからなり、光源基板(2)は、図2に全体形状を示すように、矩形の樹脂製板状体で形成されて、その上面側に2個のLED(5)(5)と供電側からの電圧を低減してLED(5)を保護するように接続される抵抗(6)とを実装している。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The light source unit (1) shown in an enlarged perspective view in FIG. 1 includes a light source board (2) and a socket (3) into which the light source board (2) is fitted. The light source board (2) has an overall shape shown in FIG. The resistor is formed of a rectangular resin plate and connected to the upper surface of the LED (5) and (5) to reduce the voltage from the power supply side and protect the LED (5). (6) is implemented.

ソケット(3)は、図3に単体構成の斜視図、図4にその正面図を示すように、前記光源基板(2)を保持し、内部は前記LED(5)や保護抵抗(6)の光源部を収納する空洞を設けた円筒部(7)と、上方に半球状のレンズ部(8)を形成して閉塞した無色透明の透光性樹脂成形体からなるレンズ一体型に構成されている。そして、下方部には外方に突出する鍔部(9)を設け、この鍔部(9)の上面には前記光源基板(2)を装着するためのガイド凹溝(10)を形成している。   The socket (3) holds the light source substrate (2) as shown in a perspective view of a single structure in FIG. 3 and a front view thereof in FIG. 4, and the inside of the socket (3) includes the LED (5) and the protective resistor (6). A cylindrical unit (7) provided with a cavity for accommodating the light source unit and a colorless and transparent translucent resin molded body formed by closing a hemispherical lens unit (8) on the upper side are configured as a lens integrated type. Yes. The lower portion is provided with a flange portion (9) projecting outward, and a guide groove (10) for mounting the light source substrate (2) is formed on the upper surface of the flange portion (9). Yes.

このガイド凹溝(10)の幅と深さ寸法は、光源基板(2)の幅と厚み寸法に合わせており、光源基板(2)を図3の矢印の方向からガイド凹溝(10)に嵌入し、前記円筒部(7)の側面を貫通して対向側に延出させた場合には、光源ユニット(1)を上方からみた図5に示すように、その長手寸法が前記鍔部(9)の両端縁と合致して外部にはみだすことなくガイド凹溝(10)部に嵌着され、LED(5)部分を円筒部(7)内に位置するように保持することで光源ユニット(1)として一体化される。なお、前記LED(5)とは、LEDチップ及びLEDチップを封止樹脂やケースで被覆したLEDパッケージを含むものであり、本発明においては搭載されるLEDの形態は問わない。   The width and depth of the guide groove (10) are matched to the width and thickness of the light source substrate (2), and the light source substrate (2) is moved from the direction of the arrow in FIG. 3 to the guide groove (10). When inserted and extended through the side surface of the cylindrical portion (7) to the opposite side, as shown in FIG. 5 when the light source unit (1) is viewed from above, the longitudinal dimension thereof is the flange portion ( 9) The light source unit (9) is fitted to the guide groove (10) portion so as to match the both edges of 9) without protruding outside, and the LED (5) portion is held so as to be located in the cylindrical portion (7). It is integrated as 1). The LED (5) includes an LED chip and an LED package in which the LED chip is covered with a sealing resin or a case. In the present invention, the form of the mounted LED is not limited.

このとき、ソケットのガイド凹溝(10)の挿入側の後端に設けた凸部(11)と光源基板(2)の挿入先端部に設けた凹部(12)とを挿入の最終段階で係合させるようにすれば、より確実に光源基板(2)を所定の位置に位置決めすることができるものであり、逆に、前記係合を解除して弾性嵌合力に抗して引き抜けば、ソケット(3)から光源基板(2)を取り外すことは容易である。   At this time, the convex part (11) provided at the rear end of the insertion guide groove (10) of the socket and the concave part (12) provided at the insertion tip of the light source board (2) are engaged in the final stage of insertion. If they are combined, the light source substrate (2) can be more reliably positioned at a predetermined position. Conversely, if the engagement is released and the elastic light is pulled out against the elastic fitting force, It is easy to remove the light source board (2) from the socket (3).

なお、前記ガイド凹溝(10)の上部には、光源基板(2)を嵌挿した際に実装されて上面に突出するLED(5)や保護抵抗(6)等が接触しないように開口(13)を設けており、また、前記円筒部(7)周縁の円周上に対向する2箇所には、外方へ部分的に突出し、回動により詳細を後述する配線基板(2)側の係合部と係合して光源ユニット(1)を嵌着する係合凸部(15)を突設している。   In addition, the upper portion of the guide groove (10) is opened so that the LED (5), the protective resistor (6), etc., which are mounted when the light source board (2) is inserted and project from the upper surface, do not come into contact with each other. 13) is provided, and the cylindrical portion (7) is opposed to the circumference of the periphery of the cylindrical portion (7). An engaging convex part (15) is provided so as to engage with the engaging part and fit the light source unit (1).

しかして、前記光源基板(2)の長手方向の両端部における上面には、LED(5)や保護抵抗(6)に接続した素子側の電極(16)を突設させている。この電極(16)は、前述のようにソケットのガイド凹溝(10)内に光源基板(2)を嵌挿した際には、鍔部(9)の上面と同一面となる光源基板(2)の上面よりわずかに突出するように設けられているものであり、光源ユニット(1)を供電側基板である配線基板(17)に装着したときには、電源側の電極(18)と接触してLED(5)側に電力を供給するようにしている。   Thus, the element-side electrode (16) connected to the LED (5) and the protective resistor (6) is provided on the upper surface of both ends in the longitudinal direction of the light source substrate (2). When the light source substrate (2) is inserted into the guide groove (10) of the socket as described above, the electrode (16) is flush with the upper surface of the flange (9). ) So that it protrudes slightly from the top surface of the light source unit (1) when the light source unit (1) is mounted on the circuit board (17), which is the power supply side substrate, in contact with the power source side electrode (18). Electric power is supplied to the LED (5) side.

以下、光源ユニット(1)を供電側の配線基板(17)に装着する構成について説明する。光源ユニット(1)の上面図である図5からも明確なように、光源基板(2)はソケット(3)のガイド凹溝(9)に嵌着され、その素子側電極(16)は鍔部(9)の端部近傍に位置しており、配線基板(17)を裏面側からみた斜視図である図6から理解されるように、配線基板(17)における光源ユニット(1)の装着部には、嵌合孔(20)が穿設されている。   Hereinafter, a configuration in which the light source unit (1) is mounted on the power supply side wiring board (17) will be described. As is clear from FIG. 5 which is a top view of the light source unit (1), the light source substrate (2) is fitted in the guide groove (9) of the socket (3), and the element side electrode (16) is As shown in FIG. 6, which is a perspective view of the wiring board (17) viewed from the back side, is located near the end of the part (9), and the light source unit (1) is mounted on the wiring board (17). The part is provided with a fitting hole (20).

この嵌合孔(20)は光源ユニットのソケット(3)の円筒部(7)が嵌入する丸孔(21)と、この丸孔(21)の周縁の対向する2箇所に前記円筒部(7)周縁に突設した係合凸部(15)に対応して係合凸部(15)が対向面側へ通過できる係合凹部(22)を切欠き形成しており、前記嵌合孔(20)の裏面側の2つの係合凹部(22)間には、丸孔(21)の周縁に沿う所定幅に亙って供電側の電極(18)が設けられている。   The fitting hole (20) has a round hole (21) into which the cylindrical part (7) of the socket (3) of the light source unit is fitted, and the cylindrical part (7) at two opposing positions on the periphery of the round hole (21). ) An engagement concave portion (22) through which the engagement convex portion (15) can pass to the opposite surface side corresponding to the engagement convex portion (15) provided on the periphery is cut out, and the fitting hole ( Between the two engagement recesses (22) on the back surface side of 20), a power supply side electrode (18) is provided over a predetermined width along the peripheral edge of the round hole (21).

光源ユニット(1)を配線基板(17)に装着する場合には、図6の矢印で示すように、2点鎖線で示す光源ユニット(1)のソケット(7)の先端を、配線基板(17)の裏面側からその嵌合孔(20)内に係合凸部(15)と嵌合孔の係合凹部(22)とを合致させ、ソケットの鍔部(9)を配線基板(17)の裏面に当接するまで挿入させる。そして、前記係合凸部(15)が配線基板(17)の表面上に抜け出た状態で、鍔部(9)の裏面に形成した凹溝(9a)を利用し、マイナスドライバー等の工具によって光源ユニット(1)を配線基板(17)面に沿って回動させるものである。   When the light source unit (1) is mounted on the wiring board (17), as shown by an arrow in FIG. 6, the tip of the socket (7) of the light source unit (1) indicated by a two-dot chain line is connected to the wiring board (17). ) From the back side of the socket, the engagement protrusion (15) and the engagement recess (22) of the engagement hole are matched in the engagement hole (20), and the socket flange (9) is connected to the wiring board (17). Insert until it touches the back of the. Then, with the engagement convex portion (15) protruding on the surface of the wiring board (17), the concave groove (9a) formed on the back surface of the flange portion (9) is used to make a tool such as a flat-blade screwdriver. The light source unit (1) is rotated along the surface of the wiring board (17).

この回動により、係合凹部(22)を介して配線基板(17)の表面側に抜け出ている係合凸部(15)は、凸部に形成した傾斜面(19)をガイドにして係合凹部(22)を離間して丸孔(21)周縁に係合することとなり、回動部終端に設けたストッパ(23)が係合凹部(22)の端縁に当接することで配線基板(17)への光源ユニット(1)の装着作業は終了し、上記作用によって、図7に示すように、光源ユニット(1)は配線基板(17)部に強固に固着される。   Due to this rotation, the engaging convex portion (15) protruding to the surface side of the wiring board (17) through the engaging concave portion (22) is engaged with the inclined surface (19) formed on the convex portion as a guide. The joint recess (22) is separated and engaged with the peripheral edge of the round hole (21), and the stopper (23) provided at the end of the rotating portion comes into contact with the edge of the engagement recess (22), so that the wiring board The mounting operation of the light source unit (1) to (17) is completed, and the light source unit (1) is firmly fixed to the wiring board (17) portion as shown in FIG.

このとき、光源ユニットの光源基板(2)上の素子側電極(16)は、回動によって配線基板裏面の供電側電極(18)の設置ゾーン内に位置することになり、双方の電極(16)と(18)は、2点鎖線で示す配線基板(17)と光源基板(2)のそれぞれ基準面から突出していることから、前記装着が完了した段階では、確実に電気接続させることができるものであって、光源ユニット(1)を配線基板(17)に嵌着させる前述の動作によって、自動的に電極(16)(18)同士を電気接続させることができる。   At this time, the element side electrode (16) on the light source substrate (2) of the light source unit is positioned in the installation zone of the power supply side electrode (18) on the back surface of the wiring board by rotation, and both electrodes (16 ) And (18) protrude from the reference planes of the wiring board (17) and the light source board (2) indicated by a two-dot chain line, so that the electrical connection can be surely made when the mounting is completed. Therefore, the electrodes (16) and (18) can be automatically electrically connected to each other by the above-described operation of fitting the light source unit (1) to the wiring board (17).

上記電気接続によって、図8に示すように、LED(5)には保護抵抗(6)を介して供電側の電力が供給され点灯するものであるが、光源基板(2)には、前記LED(5)と抵抗(6)とが同一面上に実装されていることから、使用するLEDの規格に沿った値の抵抗(6)を同一基板に実装して単一部品化することができ、また、抵抗を供電側の配線基板部等に実装することで修理交換箇所が増加し、また修理作業が煩雑になったり、型変更のためのコストが大きくなることを極力防止することができる。   As shown in FIG. 8, the above-mentioned electrical connection causes the LED (5) to be supplied with power on the power supply side via the protective resistor (6), but the LED (5) Since (5) and the resistor (6) are mounted on the same surface, the resistor (6) having a value in accordance with the standard of the LED to be used can be mounted on the same substrate to form a single component. In addition, by mounting the resistor on the power supply-side wiring board, etc., it is possible to prevent as much as possible the number of repair / replacement points, complicated repair work, and increased cost for mold change. .

さらに、上記構成によれば、従来、光源として白熱電球を使用していた際における配線基板上の電球保持部を前記嵌合孔(20)としてそのまま流用することができたり、あるいはわずかの構造変更のみで光源ユニット(1)の装着部を形成することができるものであり、新たに光源を白熱電球からLEDによる照明方式に変更したり、使用しているLEDの容量を増大するに際しても、光源部のみの変更でよく、供電側の配線基板構成を大幅に変更せずともよいことから実質的に互換性を有することになり、多様な配線基板を製造するための各仕様毎の成形型を大幅に変更した場合のコストアップを招くことがなく、大きな経済的効果を得ることができる。   Furthermore, according to the above configuration, the bulb holding part on the wiring board when the incandescent bulb is conventionally used as the light source can be used as the fitting hole (20) as it is, or a slight structural change can be made. The light source unit (1) mounting part can be formed only by changing the light source from an incandescent light bulb to an LED lighting system, or when increasing the capacity of the LED used. Since it is not necessary to change the configuration of the wiring board on the power supply side, it is substantially compatible, and a molding die for each specification for manufacturing various wiring boards is required. A large economic effect can be obtained without causing a cost increase in the case of a significant change.

なお、前記実施例における光源ユニット(1)のソケット(3)は、その上部のレンズ部を半球状に形成したが、これに限らず、特に図示しないが、ソケット頂部をV字状に凹陥させ、下方からのLEDの光線をV字状部の下端で屈折させることで光の方向性を変えたり、あるいは、ソケット(3)上面の半球状部を切欠して平坦形状にしたり、逆に尖らせるなどその他の形状に成形するようにしてもよいことは言うまでもなく、また、ソケット(3)の上方部を梨子地形状に成形して光を拡散するようにしてもよいものである。   The socket (3) of the light source unit (1) in the above embodiment has a hemispherical lens portion at the top, but this is not restrictive, and although not particularly shown, the socket top is recessed into a V shape. The direction of the light is changed by refracting the light beam of the LED from below at the lower end of the V-shaped part, or the hemispherical part on the upper surface of the socket (3) is cut out to be flat, or conversely sharpened. Needless to say, the upper portion of the socket (3) may be formed into a pear-skin shape to diffuse light.

そしてまた、前記LED(5)は極性を有することから、前記ソケット(3)のガイド凹溝(10)へ取り付ける際の挿入方向については注意する必要があるが、図5に示すように、一方のガイド凹溝(10)側は平滑に面取り(9b)して、光源基板(2)のプラス側を表すようにしたり、光源基板(2)とガイド凹溝(10)との係合形状をフールプルーフ構造にして逆向きには取り付かないようにすることは可能であり、電気回路としても、図9に示すように、保護抵抗(6)とLED(5)との間にダイオードブリッジ(25)を接続すれば、極性を考慮せずに取り付けることができる。   Moreover, since the LED (5) has a polarity, it is necessary to pay attention to the insertion direction when it is attached to the guide groove (10) of the socket (3), but as shown in FIG. The guide groove (10) side is smoothly chamfered (9b) to represent the plus side of the light source substrate (2), and the engagement shape between the light source substrate (2) and the guide groove (10) is changed. It is possible to prevent it from being attached in the reverse direction by using a foolproof structure. As shown in FIG. 9, the diode bridge (25) is provided between the protective resistor (6) and the LED (5) as shown in FIG. ) Can be attached without considering the polarity.

上記回路については、図10に示すように、保護抵抗(6)をLED(5)の後段に接続させるようにしてもよく、また、図11に示すように、極性を反対にしたLED(5)(5′)とを回路中に並列接続するようにしても極性を考慮せずに取り付けることができる。   As for the above circuit, as shown in FIG. 10, the protective resistor (6) may be connected to the rear stage of the LED (5), and as shown in FIG. ) (5 ') may be connected in parallel in the circuit without considering the polarity.

さらに、LED(5)は発熱することから、上記実施例のようにLEDやその他の部品を光源基板の表面上に実装する構成に限らず、LEDを光源基板(2)の表面に実装するとともにLED以外の保護抵抗(6)等の部品は光源基板の裏面に実装する、いわゆる両面実装で光源基板を形成するようにしてもよい。このように構成すれば、LEDの発生熱が他の部品に悪影響を与えることを防ぐことができる。   Further, since the LED (5) generates heat, the LED (5) is not limited to the configuration in which the LED and other components are mounted on the surface of the light source substrate as in the above embodiment, and the LED is mounted on the surface of the light source substrate (2). Components such as the protective resistor (6) other than the LED may be mounted on the back surface of the light source substrate, and the light source substrate may be formed by so-called double-side mounting. If comprised in this way, it can prevent that the generated heat of LED exerts a bad influence on other components.

次に本発明の光源ユニットの第2の実施形態について説明する。前記実施例については、ソケット(3)を光源部を収納する空洞を形成したレンズ部一体型とし、光源基板(2)の表面にLED(5)を実装する形態について説明したが、本実施形態においては、光源ユニット(31)の分解図であって前記実施例と同一部分に同一符号を附した図12、及びその組立図である図13に示すように、LED(35)を、発光素子部を透明なエポキシ樹脂等でモールドした砲弾型LEDで形成する。なお、LED(35)形状については、前記実施形態におけるソケット(3)の頭部形状と同様に、種々の形態を採用できることは言うまでもない。   Next, a second embodiment of the light source unit of the present invention will be described. In the above embodiment, the socket (3) is a lens unit integrated type in which a cavity for storing the light source unit is formed, and the LED (5) is mounted on the surface of the light source substrate (2). As shown in FIG. 12, which is an exploded view of the light source unit (31), in which the same reference numerals are assigned to the same parts as in the above embodiment, and FIG. The part is formed of a bullet-type LED molded with a transparent epoxy resin or the like. In addition, it cannot be overemphasized that various forms can be employ | adopted about the LED (35) shape similarly to the head shape of the socket (3) in the said embodiment.

そして、ソケット(33)は、例えば茶色に着色した合成樹脂成形体として、光源基板(31)を嵌入し固定する前記実施例同様の鍔部(39)上にガイド凹溝(40)を設け、上部はLED(35)を載置して固着するように平坦部(37)としてLED(35)の端子ピン(35a)(35a)を挿通する挿通孔(33a)(33a)を設けている。   Then, the socket (33) is provided with a guide groove (40) on the flange (39) similar to the above-described embodiment for fitting and fixing the light source substrate (31), for example, as a synthetic resin molded body colored brown, The upper portion is provided with insertion holes (33a) and (33a) through which the terminal pins (35a) and (35a) of the LED (35) are inserted as flat portions (37) so that the LED (35) is placed and fixed.

ソケット(33)のガイド凹溝(40)には、前記実施例同様に矩形板状の光源基板(32)を嵌入して固定するものであり、光源基板(32)の表面には保護抵抗(36)を設置するとともに、両端部に設けた素子側電極(46)(46)から延設した前記LED(35)の端子ピン(35a)(35a)と係合する係合孔(46a)(46a)を設けている。   A rectangular plate-like light source substrate (32) is fitted into and fixed to the guide concave groove (40) of the socket (33) in the same manner as in the above embodiment, and a protective resistance ( 36) and engaging holes (46a) (35a) that engage with terminal pins (35a) (35a) of the LED (35) extended from the element side electrodes (46) (46) provided at both ends. 46a).

しかして、光源ユニット(31)を形成する場合は、まずソケット(33)のガイド凹溝(40)に光源基板(32)を矢印の方向から嵌入して固着し、次いでLED(35)の端子ピン(35a)をソケット(33)の挿通孔(33a)に挿通させるとともに、その下方平坦面をソケット(33)上部の平坦面(37)に合致させ、前記ソケット(33)を貫通した端子ピン()を光源基板(32)の係合孔(46a)に接触させた状態でハンダ付けし電気接続することで完了する。   Therefore, when forming the light source unit (31), first, the light source substrate (32) is fitted and fixed in the guide groove (40) of the socket (33) from the direction of the arrow, and then the terminal of the LED (35). The pin (35a) is inserted into the insertion hole (33a) of the socket (33), and the lower flat surface thereof is matched with the flat surface (37) of the upper portion of the socket (33) so as to penetrate the socket (33). This is completed by soldering and electrically connecting () in contact with the engagement hole (46a) of the light source substrate (32).

このように形成された光源ユニット(31)は、図示しない配線基板に前記実施例と同様の手順で取り付けられるものであり、光源配線基板の所定位置に設置した際には、光源基板(32)の上面端部に突設している素子側電極(46)が配線基板の裏面に設けた供電側電極(18)の接点に接触し、通電された場合にはLED(35)は点灯するとともに、使用変更や故障等でこれを交換するような場合には、LED(35)とともにLEDの規格に沿った保護抵抗(36)等の部品が一体に実装された光源基板(32)部のみを交換すればよく、修理交換等の作業時間を短縮できるとともに簡単な構成であることから光源ユニット(31)も容易に製造することができる。また、上記第2の実施形態の光源ユニット(31)によれば、ソケット(33)を着色することが可能となるため、透明体からなるレンズ部一体型のソケット(3)に比して、裏面からの光洩れを防ぐことができる。   The light source unit (31) formed in this manner is attached to a wiring board (not shown) in the same procedure as in the above embodiment, and when installed at a predetermined position of the light source wiring board, the light source board (32) When the element side electrode (46) projecting from the upper surface end of the electrode contacts the contact of the power supply side electrode (18) provided on the back surface of the wiring board and is energized, the LED (35) is turned on. In the case of replacement due to change of use or failure, only the light source board (32) part on which the LED (35) and parts such as the protective resistor (36) conforming to the LED standard are integrally mounted. The light source unit (31) can be easily manufactured because the construction time can be shortened and the construction is simple. Further, according to the light source unit (31) of the second embodiment, since the socket (33) can be colored, as compared with the lens part integrated socket (3) made of a transparent body, Light leakage from the back surface can be prevented.

本発明は、LEDを実装した光源基板をソケットに固着した光源ユニット、及び照明装置に利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be used for a light source unit in which a light source substrate on which an LED is mounted is fixed to a socket, and an illumination device.

本発明の1実施形態を示す光源ユニットの斜視図である。It is a perspective view of the light source unit which shows one Embodiment of this invention. 図1における光源基板を示す斜視図である。It is a perspective view which shows the light source board | substrate in FIG. 図1におけるソケットを示す斜視図である。It is a perspective view which shows the socket in FIG. 図3の正面図である。FIG. 4 is a front view of FIG. 3. 図1に示す光源ユニットの上面図である。It is a top view of the light source unit shown in FIG. 図1の光源ユニットの配線基板への取り付け状態を示す斜視図である。It is a perspective view which shows the attachment state to the wiring board of the light source unit of FIG. 図6による光源ユニットと配線基板との結合状態を示す正面図である。It is a front view which shows the coupling | bonding state of the light source unit and wiring board by FIG. 図1における光源ユニットの電気回路図である。It is an electric circuit diagram of the light source unit in FIG. 図8の他の例を示す電気回路図である。It is an electric circuit diagram which shows the other example of FIG. 図9の変形例を示す電気回路図である。FIG. 10 is an electric circuit diagram showing a modification of FIG. 9. 図8のさらに他の例を示す電気回路図である。FIG. 10 is an electric circuit diagram showing still another example of FIG. 8. 本発明の光源ユニットの他の実施形態を示す分解斜視図である。It is a disassembled perspective view which shows other embodiment of the light source unit of this invention. 図12の光源ユニットの組立状態を示す斜視図である。FIG. 13 is a perspective view showing an assembled state of the light source unit of FIG. 本発明の従来例を示す発光体を備えた電子機器の斜視図である。It is a perspective view of the electronic device provided with the light-emitting body which shows the prior art example of this invention.

符号の説明Explanation of symbols

1、31 光源ユニット 2、32 光源基板 3、33 ソケット
5、35 発光ダイオード(LED) 6、36 保護抵抗
7 円筒部 8 レンズ部 9、39 鍔部
9a 凹溝 9b 面取り 10、40 ガイド凹溝
11 凸部 12 凹部 13 開口
15 係合凸部 16、46 素子側電極 17 配線基板
18 供電側電極 19 傾斜面 20 嵌合孔
21 丸孔 22 係合凹部 23 ストッパ
25 ダイオードブリッジ 33a 挿通孔 35a 端子ピン
46a 係合孔
DESCRIPTION OF SYMBOLS 1,31 Light source unit 2,32 Light source board 3,33 Socket 5,35 Light emitting diode (LED) 6,36 Protection resistance 7 Cylindrical part 8 Lens part 9,39 Gutter part 9a Groove 9b Chamfer 10,40 Guide groove
11 Convex part 12 Concave part 13 Opening
15 Engaging protrusion 16, 46 Element side electrode 17 Wiring board
18 Power supply side electrode 19 Inclined surface 20 Mating hole
21 Round hole 22 Engaging recess 23 Stopper
25 Diode bridge 33a Insertion hole 35a Terminal pin
46a engagement hole

Claims (6)

ソケットに嵌着して一体化させる光源基板に、発光ダイオードとそれ以外の部品を実装したことを特徴とする光源ユニット。   A light source unit in which a light emitting diode and other components are mounted on a light source substrate to be fitted and integrated into a socket. 光源基板には、発光ダイオードと少なくとも保護抵抗とを一体に実装したことを特徴とする請求項1記載の光源ユニット。   The light source unit according to claim 1, wherein the light emitting diode and at least the protective resistor are integrally mounted on the light source substrate. 光源基板は、矩形板状にしてソケットの側面に設けた開口からソケット内に嵌入して固定するものであり、光源基板上には発光ダイオードを実装するとともに発光ダイオード以外の部品を光源基板の表面あるいは裏面に実装したことを特徴とする請求項1または2記載の光源ユニット。   The light source board has a rectangular plate shape and is fitted into the socket through an opening provided on the side surface of the socket, and a light emitting diode is mounted on the light source board and components other than the light emitting diode are mounted on the surface of the light source board. Or the light source unit of Claim 1 or 2 mounted in the back surface. ソケットの下部に形成した外方への突出鍔部に凹溝を設け、この凹溝及び凹溝に連通してソケット内外を貫通する開口に光源基板を嵌挿して固定したことを特徴とする請求項1または2記載の光源ユニット。   A concave groove is formed in an outward projecting flange formed in a lower part of the socket, and the light source substrate is fitted and fixed in an opening that communicates with the concave groove and the socket and penetrates the inside and outside of the socket. Item 3. The light source unit according to Item 1 or 2. ソケットの裏面に光源ユニットを配線基板に固着するための工具係合用の凹部を形成したことを特徴とする請求項1または2記載の光源ユニット。   The light source unit according to claim 1, wherein a recess for engaging a tool for fixing the light source unit to the wiring board is formed on the back surface of the socket. 光源部を収納する空洞を形成したレンズ一体型あるいは光源部を載置して一体化した樹脂成形体からなるソケットと、このソケットの下部に外方に突出して設けた鍔部の上面に形成したガイド凹溝と、このガイド凹溝からソケット内に嵌入して固定される矩形板状の光源基板と、この光源基板の表面に実装された光源部である発光ダイオード及び光源基板の表面あるいは裏面に実装した発光ダイオード以外の部品とから光源ユニットを形成し、光源ユニットを配線基板の所定位置に設置した際には光源基板の上面端部に突設した素子側電極が配線基板の裏面に設けた供電側電極に接触するようにしたことを特徴とする照明装置。
A lens-integrated type with a cavity for housing the light source part or a socket made of a resin molded body on which the light source part is placed and integrated, and an upper surface of a flange part projecting outward from the lower part of the socket A guide groove, a rectangular plate-shaped light source board that is fitted and fixed in the socket from the guide groove, a light-emitting diode that is a light source portion mounted on the surface of the light source board, and the front or back surface of the light source board A light source unit is formed from components other than the mounted light emitting diode, and when the light source unit is installed at a predetermined position on the wiring board, the element side electrode protruding from the upper surface end of the light source board is provided on the back surface of the wiring board. An illumination device characterized by being in contact with a power supply side electrode.
JP2005359432A 2005-12-13 2005-12-13 Light source unit and lighting fixture Pending JP2007165559A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009099627A (en) * 2007-10-12 2009-05-07 Panasonic Electric Works Co Ltd Led luminaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009099627A (en) * 2007-10-12 2009-05-07 Panasonic Electric Works Co Ltd Led luminaire

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