JP2010192307A - Illumination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination device capable of widening light distribution characteristics. <P>SOLUTION: Two translucent panels 60 are disposed while a center cover 80 is interposed between them. Each translucent panel 60 is inclined so that the distance dimension between the body frame 10 and the translucent panel 60 (height dimension of the translucent panel 60) is reduced along the direction toward an edge on the side of a long side from a central part of the body frame 10. As a result, light from the LED modules 20 can be irradiated more widely (for example, the direction orthogonal to the longitudinal direction of the body frame 10), and light distribution to a ceiling surface can be increased (light distribution characteristics are widened). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lighting device capable of widening the light distribution characteristics of a light source.

  In recent years, an illuminating device using a light emitting diode as a light source instead of a fluorescent lamp or an incandescent lamp has been developed as being excellent in power saving and long life. Such an illuminating device has a structure in which a substrate (LED module) on which a plurality of light emitting diodes (LEDs) are mounted, a drive circuit (power supply circuit) for driving the LEDs, and the like are mounted in the lamp.

  In such an illumination device using LEDs, the substrate is arranged with the LEDs on the lower side so that the light emitting surface is on the lower side when installed on the ceiling, and the driving circuit and the light emitting surface are not obstructed. A two-stage structure is adopted in which components including a power supply circuit and a circuit board are arranged on the back side (upper side) of the LED module. For example, in Patent Document 1, a light emitting diode is mounted on the front side of the substrate, a light emitting diode driving circuit is provided on the back side, and a light control body that controls light emitted from the light emitting diode is provided. An illumination device is disclosed.

JP 2005-71711 A

  However, in the case of a conventional lighting device as disclosed in Patent Document 1, an LED module (a substrate on which an LED is mounted) and a power supply device such as a drive circuit for driving the LED have a two-stage structure. The light distribution characteristic of such an illuminating device is so-called front surface light distribution. Therefore, when the illuminating device is installed on the ceiling, the light emitted from the light emitting diodes is mainly concentrated in a direction substantially perpendicular to the ceiling surface. . For this reason, there is a problem that the ceiling surface around the lighting device becomes dark and the indoor space looks dark, and it has been desired to improve the light distribution characteristics.

  This invention is made | formed in view of such a situation, and it aims at providing the illuminating device which can make a light distribution characteristic wide.

  An illuminating device according to the present invention includes an illuminating device main body, a light source unit mounted on the illuminating device main body, and a light-transmitting plate that is spaced apart from the illuminating device main body and transmits light from the light source unit. In the illuminating device provided, the translucent plate is inclined so that a separation dimension becomes smaller toward an edge of the illuminating device main body.

  The illuminating device according to the present invention includes a driving unit that is juxtaposed with the light source unit in the illuminating device body and drives the light source unit.

  In the illuminating device according to the present invention, the driving unit is disposed in a central portion of the illuminating device main body, and the light source unit and the light transmitting plate are disposed in part or all of the periphery of the driving unit. It is characterized by being.

  The illuminating device according to the present invention is characterized in that the translucent plate is provided with two of the drive units in between.

  The illuminating device according to the present invention is characterized in that the light source unit is formed of a light emitting diode.

  In the present invention, the translucent plate is inclined so that the separation dimension becomes smaller toward the edge of the lighting device body. Thereby, for example, when the lighting device is installed on the ceiling surface, the light from the light source unit is irradiated not only substantially perpendicularly to the ceiling surface but also on the peripheral side of the lighting device. For this reason, the ceiling surface around the illuminating device can also irradiate light, and the light distribution characteristics can be made wider than before.

  In the present invention, the lighting device main body includes a drive unit that is juxtaposed with the light source unit and drives the light source unit. By arranging the light source unit and the drive unit side by side in the illuminating device main body, there is no need for a conventional two-stage structure, and the height dimension of the translucent plate can be reduced from the ceiling surface to the ceiling surface. The light distribution can be increased, and the light distribution characteristics can be further broadened.

  In this invention, the drive part is arrange | positioned in the center part of the illuminating device main body, and the light source part and the translucent board are arrange | positioned in part or all around the drive part. By disposing the drive unit in the center of the lighting device body, the translucent plate can be brought closer to the ceiling surface (the height dimension is reduced) near the edge of the lighting device body, and the light distribution characteristics are further expanded. Can do.

  In the present invention, two translucent plates are provided with a drive unit in between. Thereby, when an illuminating device is installed in a ceiling surface, light distribution to the ceiling surface of both sides can be increased on both sides of an illuminating device, and a light distribution characteristic can be expanded further.

  In the present invention, the light source unit is formed of a light emitting diode. Thereby, when a light emitting diode is used, the light distribution characteristic can be widened.

  According to the present invention, the light distribution characteristic can be widened.

It is an external appearance perspective view of the illuminating device which shows embodiment of this invention. It is a disassembled perspective view of the illuminating device which shows embodiment of this invention. It is the top view seen from the lower side of the illuminating device which shows embodiment of this invention. It is the top view seen from the lower side in the state which removed the center cover of the illuminating device which shows embodiment of this invention. It is the VV sectional view taken on the line of FIG.

  Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is an external perspective view of an illumination device 100 showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the illumination device 100 showing an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. It is the top view seen from the lower side of the illuminating device 100 which shows a form, and FIG. 4 is the top view seen from the lower side in the state which removed the center cover 80 of the illuminating device 100 which shows embodiment of this invention. The lighting device 100 includes a main body frame 10 as a lighting device main body, an LED module 20 as a light source unit in which a plurality of LEDs 21 are mounted on a substrate, and a drive unit that supplies required power (voltage or current) to the LED module 20. Power supply unit 30, connection terminal 40 for connecting a power line from a commercial power supply, translucent panel 60 as a translucent plate that transmits light from LED module 20, and main body frame provided along the longitudinal direction of main body frame 10 10 and the side cover 70 which sandwiches the translucent panel 60, the power supply unit 30, the center cover 80 which covers the connection terminal 40, etc., the side cover 90, etc. are provided.

  As shown in FIG. 2, two partition plates 14, 14 are provided on the main body frame 10 along the longitudinal direction of the rectangular main body frame 10. The section sandwiched between the partition plates 14 is a place where the power supply unit 30, the connection terminal 40, and the like are juxtaposed with the LED module 20. The partitions between the partition plate 14 and the edge on the long side of the main body frame 10 are places where the LED modules 20 are mounted. That is, the LED module 20 is divided into two portions and juxtaposed on the main body frame 10 with the power supply unit 30 and the connection terminals 40 therebetween.

  As shown in FIG. 2, the center cover 80 is fixed to the side cover 90 by screws 91. A metal fitting having a screw hole may be provided upright at the short side edge of the main body frame 10, and the center cover 80 may be fixed to the metal fitting. In any case, when attaching the lighting device 100 (the main body frame 10) to the ceiling or the like, the center cover 80 can be removed and the center cover 80 can be attached after the lighting device 100 is attached to the ceiling or the like. .

  As shown in FIG. 2, the center cover 80 is provided with a bent portion 81 whose long side is bent into an L shape. It is also possible to provide a recessed portion with an appropriate distance from the edge of the curved portion 81 and to provide a member for locking the recessed portion such as a protruding portion at a corresponding position of the partition plate 14. Thereby, the center cover 80 can be prevented from being recessed toward the main body frame 10. In addition, it may replace with a recessed part in the edge of the curved part 81, and may provide a recessed part in the position corresponding to the partition plate 14, and you may make it latch. Any structure may be used as long as the center cover 80 can be prevented from being bent.

  In addition, as shown in FIG. 3, two translucent panels 60 are arranged with a center cover 80 therebetween. As shown in FIGS. 1 and 2, the translucent panel 60 has a separation dimension (height dimension of the translucent panel 60) between the main body frame 10 and the translucent panel 60 along the direction toward the edge of the main body frame 10. ) To decrease. Note that the distance between the main body frame 10 and the translucent panel 60 (the height dimension of the translucent panel 60) is greater than the dimension at the edge at locations other than the edge, such as the center of the main body frame 10 and the vicinity of the center. Just make it bigger. Thereby, the light from the LED module 20 can be illuminated in a wider range (for example, the direction orthogonal to the longitudinal direction of the main body frame 10), and the light distribution to the ceiling surface can be increased (light distribution characteristics are widened). it can.

  That is, the translucent panel 60 is inclined so that the separation dimension becomes smaller toward the edge of the main body frame 10. Thereby, for example, when the lighting device 100 is installed on the ceiling surface, the light from the translucent panel 60 (LED module 20) is not only irradiated substantially perpendicularly to the ceiling surface but also on the peripheral side of the lighting device 100. Is also irradiated. For this reason, the ceiling surface around the illuminating device 100 can also irradiate light, and the light distribution characteristics can be made wider than before.

  Further, by adopting a structure in which the LED module 20 and the power supply unit 30 are juxtaposed on the main body frame 10 (not a two-stage structure), there is no need for a conventional two-stage structure, and the translucent panel 60 is formed from the ceiling surface. The height dimension can be reduced, the light distribution to the ceiling surface can be increased, and the light distribution characteristics can be further broadened.

  Further, the power supply unit 30 is disposed at a substantially central portion of the main body frame 10, and two LED modules 20 and the translucent panel 60 are provided with the power supply unit 30 in between. Thereby, when the illuminating device 100 is installed on a ceiling surface, the light distribution to the ceiling surfaces on both sides with the illuminating device 100 interposed therebetween can be increased, and the light distribution characteristics can be further expanded.

  In the above example, the two LED modules 20 and the light transmitting panel 60 are provided with the power supply unit 30 in between, but the present invention is not limited to this. For example, the LED module 20 and the light transmitting panel are provided. 60 may be arranged all around the power supply unit 30. In any case, by placing the power supply unit 30 at the center of the main body frame 10, the inclined translucent panel 60 is brought close to the ceiling surface near the edge of the main body frame 10 (the height dimension is reduced). And light distribution characteristics can be further expanded.

  As shown in FIG. 4, the main body frame 10 is provided with mounting holes 11 for attaching the main body frame 10 to an installation place such as a ceiling. Note that the attachment hole 11 is an example, and is not limited thereto. A member such as a hook or a notch may be used as long as the main body frame 10 can be attached to the installation location. Thereby, the main body frame 10 can be installed in an installation place such as a ceiling. As shown in FIG. 4, the main body frame 10 can be provided with a plurality of screw holes 13. Thereby, it can also be directly attached to the ceiling or the like. Further, the main body frame 10 is formed with wiring holes 12 and 12 for wiring power supply lines and the like at appropriate locations.

  5 is a cross-sectional view taken along line VV in FIG. As shown in FIG. 5, the LED module 20 is provided on the main body frame 10 with the power supply unit 30 interposed therebetween. For this reason, the height dimension (thickness) of the illuminating device 100 can be made small compared with the case where the light source part and power supply part of the past are made into a two-stage structure, and a thin illuminating device is implement | achieved. it can.

  In addition, a connector 23 for connecting wiring from the power supply unit 30 is mounted on the substrate of the LED module 20. Moreover, in order to irradiate the light from LED module 20 efficiently, the reflective sheet 22 bent in the cross-sectional view in substantially U shape is provided. Both edges of the reflection sheet 22 are arranged so as to be positioned on both edges of the translucent panel 60. Thereby, it can prevent that the light from LED module 20 leaks inside the illuminating device 100, and can improve the extraction efficiency of light.

  Moreover, since the detachable center cover 80 is disposed adjacent to the translucent panel 60 that transmits the light from the LED module 20, the light from the LED module 20 is not blocked. Further, when attaching the lighting device 100 to the ceiling or the like, the center cover 80 can be removed and the center cover 80 can be attached after the main body frame 10 is attached to the installation place such as the ceiling, thereby improving workability. To do.

  As described above, according to the present invention, the light distribution characteristic can be widened. For example, when the lighting device is installed on the ceiling surface, the ceiling surface around the lighting device can be brightened, and the entire room Can be brightened. Especially in lighting devices used in stores, convenience stores, etc., it is desired to brighten the indoor space, so the light distribution characteristics of the light source are widened so that light from the light source is also emitted to the ceiling surface. The lighting device according to the invention can be used in various applications.

  In the above-described embodiment, the lighting device is a so-called straight type lighting device having a rectangular shape, but the shape of the lighting device is not limited to the straight type, and is a so-called square type or circular type. There may be. For example, in the case of a circular illumination device, the main body frame has a circular shape, a power supply unit is disposed at the center, and LED modules are disposed concentrically around the power supply unit. Further, the shape of the translucent panel 60 is not limited to the rectangular shape, and other shapes such as a square shape, a circular shape, and a concentric shape can be adopted according to the shape of the main body frame.

  In the above-described embodiment, the center cover 80 is screwed. However, the present invention is not limited to this, and a structure in which both the side covers 90 are sandwiched may be used. The center cover 80 is not limited to a plate-like shape, and may be various types as long as it covers the power supply unit 30 and the like, such as a curved shape having a curved cross-sectional shape, or a shape having a slit. The following structure can be used.

  In the above-described embodiment, the plate-like partition plate 14 has been described as an example. However, the plate-like partition plate 14 is not limited to the plate-like one, and the LED module 20 and the power supply unit 30 can be partitioned. Any thing can be used.

10 Body frame (lighting device body)
11 Mounting hole 14 Partition plate 20 LED module (light source part)
21 LED
30 Power supply unit (drive unit)
60 Translucent panel (translucent plate)
80 Center cover

Claims (5)

In an illuminating device comprising: an illuminating device main body; a light source unit attached to the illuminating device main body; and a translucent plate that is spaced apart from the illuminating device main body and transmits light from the light source unit.
The translucent plate is
A lighting device, wherein the lighting device is inclined so as to have a small separation dimension toward an edge of the lighting device main body.   The illuminating device according to claim 1, further comprising a drive unit that is juxtaposed with the light source unit in the illuminating device main body and drives the light source unit. The drive unit is
It is arranged at the center of the lighting device body,
The light source unit and the translucent plate are
The lighting device according to claim 2, wherein the lighting device is arranged on a part or all of the periphery of the driving unit.   The illuminating device according to claim 3, wherein two of the translucent plates are provided with the driving unit interposed therebetween. The light source unit is
The lighting device according to claim 1, comprising a light emitting diode.

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