JP2010251191A5

JP2010251191A5 -

Info

Publication number: JP2010251191A5
Application number: JP2009100971A
Authority: JP
Filing date: 2009-04-17
Publication date: 2012-06-07

Description

前記課題を解決するために、本発明に係る投光器は、（１）前面が開口された器体と、前記器体の開口部内に収納配置されるプリント配線基板と、前記プリント配線基板上に実装される複数個の発光素子と、前記発光素子からの光をそれぞれ前方に向けて照射する複数個のレンズと、前記発光素子に対応して前記レンズが各々取り付けられる複数個のレンズ保持部を有し、該各レンズ保持部に前記レンズを取り付け、前記各プリント配線基板の前側に配置させて前記器体の開口部内に収納配置されるレンズホルダーと、を備え、前記プリント配線基板は複数に分割され、前記レンズホルダーは前記プリント配線基板に対応して複数個に分割されていることを特徴とする。 In order to solve the above-mentioned problems, a projector according to the present invention includes: (1) a container whose front surface is opened, a printed wiring board housed in the opening of the container, and mounted on the printed wiring board. A plurality of light emitting elements, a plurality of lenses for irradiating light from the light emitting elements forward, respectively, and a plurality of lens holding portions to which the lenses are attached in correspondence with the light emitting elements. A lens holder that is attached to each lens holding portion and disposed on the front side of each printed wiring board and accommodated in the opening of the container, and the printed wiring board is divided into a plurality of parts. The lens holder is divided into a plurality of parts corresponding to the printed wiring board.

前記（１）の構成によれば、プリント配線基板は複数個の発光素子としてのＬＥＤを実装してユニットの体を成しているプリント配線部の単位で器体の所定の位置へ組み込むことができ、また、レンズホルダーも複数個のレンズを取り付けてユニットの体をなしているレンズホルダー部の単位で器体の所定の位置に組み込むことができる。すなわち、器体内に各部品を個々の状態では組み込まずに、取り扱い易い重量と大きさを有する部品ユニットにして器体の所定の位置へ一体に組み込むので、組立作業工数が減少し、また、部品間のずれ量も少なくなる。 According to the configuration of (1) above , the printed wiring board can be mounted at a predetermined position of the container in units of the printed wiring portion constituting the unit body by mounting LEDs as a plurality of light emitting elements. In addition, the lens holder can also be incorporated at a predetermined position of the body in units of a lens holder portion that forms a unit body by attaching a plurality of lenses. In other words, each part is not assembled into the body in an individual state, but is formed into a part unit having a weight and size that is easy to handle and integrated into a predetermined position of the body. The amount of misalignment is also reduced.

（２）前記（１）の構成において、前記プリント配線基板の前記発光素子が実装された側とは反対側の裏面に設けられた放熱板と前記放熱板のほぼ裏面全体に設けられた放熱フィンを有する放熱体を備える構成を採用できる。前記（２）の構成によれば、放熱体を介してＬＥＤの放熱を行い、該ＬＥＤが過熱するのを防止でき、該ＬＥＤの適正な明るさを長期間に亘って維持することができる。 (2) In the configuration of (1), a heat radiating plate provided on the back surface of the printed wiring board opposite to the side on which the light emitting element is mounted, and a heat radiating fin provided on substantially the entire back surface of the heat radiating plate. The structure provided with the heat radiator which has can be employ | adopted. According to the configuration of (2), the LED can be radiated through the heat radiating body to prevent the LED from being overheated, and the appropriate brightness of the LED can be maintained over a long period of time.

（３）前記（２）の構成において、前記器体の外側面に設けられ前記放熱体の熱を放熱する放熱ベルトを備える構成を採用できる。前記（３）の構成によれば、放熱体の熱を放熱するための放熱ベルトを器体の外に設けた事で、より効率的にＬＥＤの放熱をする事が出来る。 (3) In the configuration of (2), it is possible to employ a configuration including a heat dissipation belt that is provided on the outer surface of the container body and dissipates heat of the heat dissipation body. According to the configuration of (3) , the heat radiation belt for radiating the heat of the heat radiating body is provided outside the body, so that the LED can be radiated more efficiently.

（４）前記（３）の構成において、前記器体の外側面をその一部を残して焼き付け塗装しているとともに、前記器体の内面に前記放熱体の一部を当接して該放熱体を取り付け、該器体の前記焼き付け塗装をしていない一部外面に前記放熱ベルトを当接して取り付ける、構成を採用できる。 (4) In the configuration of (3), the outer surface of the container body is baked and painted while leaving a part thereof, and the heat radiator is brought into contact with the inner surface of the container body. It is possible to adopt a configuration in which the heat radiating belt is attached in contact with a part of the outer surface of the container that is not baked.

前記（４）の構成によれば、器体の外面の中、放熱ベルトを取り付けていない外面部分には焼き付け塗装が施してあるので、該器体表面が塩害等で錆びるのを防止できる。一方、放熱カバーが当接して取り付けられている外面部分は放熱カバーの当接で錆びるのが防止できる。また、焼き付け塗装がされていない放熱カバーと器体との当接部分では、焼き付け塗装に放熱が邪魔されることなく器体側の熱が放熱カバー側に良く伝わり、放熱性を高める。 According to the structure of said (4) , since the outer surface part which has not attached the thermal radiation belt is baked and painted in the outer surface of a container, it can prevent that this container surface rusts by salt damage etc. On the other hand, it is possible to prevent the outer surface portion to which the heat radiating cover is attached in contact with the heat radiating cover from being rusted. In addition, at the abutting portion between the radiating cover and the container that is not baked, the heat on the container side is well transmitted to the radiating cover side without the heat radiation being disturbed by the baked coating, thereby improving the heat dissipation.

（５）前記（１）ないし（４）のいずれか１つの構成において、前記プリント配線基板の中心部分に設けられた孔部と、前記複数の発光素子に電気的に接続され、前記孔部から前記プリント配線基板の前記発光素子が実装された側とは反対側の裏面に導かれる信号線とを備える、構成を採用できる。 (5) In any one of the constitutions (1) to (4), a hole provided in a central portion of the printed wiring board and electrically connected to the plurality of light emitting elements, A configuration including a signal line led to a back surface opposite to the side on which the light emitting element is mounted of the printed wiring board can be adopted.

前記（５）の構成によれば、プリント配線基板の中心部分に設けられた孔部から信号線を引き出すため、分割されたプリント配線基板とレンズホルダーを組み合わせて投光器を組み立てる場合に、作業を簡単にする事ができる。 According to the configuration of (5) , since the signal line is drawn out from the hole provided in the central portion of the printed wiring board, the work can be easily performed when assembling the projector by combining the divided printed wiring board and the lens holder. Can be made.

（６）前記（２）ないし（５）のいずれか１つの構成において、前記プリント配線基板と前記レンズホルダーは、前記放熱体に固定されて一体化されている、構成を採用できる。 (6) In any one of the configurations (2) to (5) , the printed wiring board and the lens holder may be fixed and integrated with the heat radiator.

前記（６）の構成によれば、放熱体と前記プリント配線基板と前記レンズホルダーを予め一体化し、この一体化した状態で器体に組み込むことができる。これにより、組立作業工数が減少し、また、部品間のずれ量もさらに少なくすることができる。 According to the configuration of (6) , the heat radiating body, the printed wiring board, and the lens holder can be integrated in advance and incorporated into the container in this integrated state. As a result, the number of assembly work steps can be reduced, and the amount of shift between components can be further reduced.

（７）前記（１）ないし（６）のいずれか１つの構成において、前記プリント配線基板には、前記複数の発光素子を各々制御するレギュレータ用ＩＣを有する定電流回路を設けている、構成を採用できる。 (7) The configuration according to any one of (1) to (6) , wherein the printed wiring board is provided with a constant current circuit having a regulator IC for controlling each of the plurality of light emitting elements. Can be adopted.

前記（７）の構成によれば、定電流回路の制御によりＬＥＤに流れる過電流を防止し、適正な明るさを長期間に亘って維持することができる。 According to the configuration of (7) , overcurrent flowing to the LED can be prevented by controlling the constant current circuit, and appropriate brightness can be maintained over a long period of time.

（８）前記（７）の構成において、前記レギュレータ用ＩＣは、前記プリント配線基板の外周端部に位置して実装されているとともに、該レギュレータ用ＩＣのパッケージ外面に放熱板を取り付けている、構成を採用できる。 (8) In the configuration of (7) , the regulator IC is mounted at an outer peripheral end of the printed wiring board, and a heat sink is attached to the outer surface of the regulator IC package. Configuration can be adopted.

前記（８）の構成によれば、レギュレータ用ＩＣの発熱及びプリント配線基板に発生する熱を、該ＩＣパッケージ外面に取り付けている放熱板を通してそれぞれ放熱することができる。 According to the configuration of (8) , the heat generated by the regulator IC and the heat generated in the printed wiring board can be radiated through the heat sink attached to the outer surface of the IC package.

（９）前記（１）ないし（８）のいずれか１つの構成において、前記複数個の発光素子は、発光色が異なる発光素子を含んでいる、構成を採用できる。 (9) In any one of the configurations (1) to (8) , the plurality of light emitting elements may include light emitting elements having different emission colors.

前記（９）の構成によれば、例えば白、赤、緑、青色等のＬＥＤを用いて所望の色への調整を行い、色彩豊かなライトアップ等を可能にすることができる。
According to the configuration of (9) , for example, white, red, green, and blue LEDs can be used to make adjustments to a desired color, thereby enabling colorful light-up and the like.

Claims

A body with an open front;
A printed wiring board housed in the opening of the vessel, and
A plurality of light emitting elements mounted on the printed wiring board;
A plurality of lenses for irradiating the light from the light emitting element forward, respectively;
A plurality of lens holding portions to which the lenses are attached in correspondence with the light emitting elements; the lenses are attached to the lens holding portions; A lens holder that is housed in the unit,
The printed wiring board is divided into a plurality of parts,
The light projector according to claim 1, wherein the lens holder is divided into a plurality of parts corresponding to the printed wiring board.

The heat sink which has a heat sink provided in the back surface on the opposite side to the side in which the said light emitting element of the said printed wiring board was mounted, and a heat sink provided in the substantially whole back surface of the said heat sink. Floodlight.

The light projector of Claim 2 provided with the heat-radiation belt which is provided in the outer surface of the said container, and radiates the heat | fever of the said heat-radiating body.

The outer surface of the container body is baked and painted while leaving a part thereof, and the heat radiating body is attached to the inner surface of the container body by contacting a part of the heat radiating body. The projector according to claim 3 , wherein the heat dissipating belt is attached to a part of the outer surface that is not in contact.

A hole provided in a central portion of the printed wiring board;
Is electrically connected to the plurality of light emitting elements, one from the hole of claims 1 to 4 and the side where the light emitting element is mounted of the printed circuit board and a signal line guided to the back surface opposite The projector according to claim 1 .

The projector according to any one of claims 2 to 5, wherein the printed wiring board and the lens holder are fixed to and integrated with the heat radiator.

Wherein the printed wiring board, projector according to any one of claims 1 to 6, characterized in that there is provided a constant current circuit having a regulator IC for each controlling the plurality of light emitting elements.

8. The projector according to claim 7 , wherein the regulator IC is mounted at an outer peripheral end portion of the printed circuit board, and a heat radiating plate is attached to an outer surface of the regulator IC package. .

The projector according to any one of claims 1 to 8, wherein the plurality of light emitting elements include light emitting elements having different emission colors.