JP2018092843A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illuminating device excellent in assemblability.SOLUTION: According to one embodiment of the invention, a luminaire comprises: a main body; an arm part fitted to the main body; a light source part being provided at a front surface side of the main body and arranged with a plurality of light-emitting devices on one substrate; a heat radiation part provided at a rear surface side of the main body; a power source part supplying an electric power source to the light source part; and a diffusion member integrally covering the plurality of light-emitting devices of the light source part and being provided with regulation members at asymmetrical positions with a center point of the substrate as a reference while regulating a fitting direction to the light source part.SELECTED DRAWING: Figure 3

Description

The technical field of the present invention relates to a lighting fixture.

  Conventionally, high ceiling fixtures are known as lighting installed on the ceiling of warehouses and gymnasiums. Since high ceiling appliances are used in high places, it is difficult to frequently maintain and inspect appliances once they are installed.

Therefore, diffusive members such as covers and lenses that cover the light source of the instrument should be installed in the correct orientation if the light source surface is symmetrical, such as circular or square, when the direction of attachment to the instrument is incorrect or misalignment occurs. It is difficult to notice the mistake, and there is a possibility that it may lead to an accident such as a fire or breakage due to a problem that the luminous efficiency is lowered or the heat radiation efficiency is lowered to generate heat.

JP 2006-162705 A

The problem to be solved by the present invention is to provide an illuminating device excellent in assemblability.

  An embodiment of the present invention includes a main body, an arm portion attached to the main body,

A light source unit provided on the front side of the main body and having a plurality of light emitting elements disposed on a single substrate, a heat radiating unit provided on the back side of the main unit, a power source unit for supplying power to the light source unit, and a light source And a diffusing member provided with a regulating member provided at an asymmetrical position with respect to the center point of the substrate.

The perspective view showing the example of 1st embodiment of this invention. The figure showing the cross section of the light source part and diffusion member of 1st embodiment of this invention. The front view showing the example of arrangement | positioning of the diffusion member shape and several lenses in 2nd embodiment of this invention. Sectional drawing in A-A 'of FIG. 3 which shows the positional relationship of the lens and light emitting element of 2nd embodiment of this invention. Sectional drawing of the light source part and diffusion member showing the example of 3rd embodiment of this invention.

  A lighting device according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

  The lighting device according to the first embodiment of the present invention includes a main body 1 made of metal, one end attached to the side of the main body, the upper part of the main body 1 extending in a U shape, and the other end being the main body. Arm portions 2 that are attached to a pair of opposing side surfaces are provided. The flat light source unit has a back surface provided on the lower surface side of the main body 1 and has a plurality of light emitting elements 53 in a circular shape or a square shape. In addition, flat radiating fins that are thermally connected to the back side of the main body 1 stand in parallel, and a radiating portion 4 is provided. A power supply unit 3 that supplies power to the light source unit 5 is disposed between the arm unit 2 and the heat dissipation unit 4. Further, the light transmissive diffusion member 7 that integrally covers the plurality of light emitting elements 53 of the light source unit 5 and the outer edge portion of the diffusion member 7 are screwed to the main body by screws 11 so that the light source unit 5 and the diffusion member 7 are attached. It comprises a diffusion member cover 8 to be fixed.

The light source unit 5 has a plurality of light emitting elements 53 such as LEDs arranged on a single substrate 51 at an asymmetrical position when viewed from the center of the substrate 51. A central hole 52 is provided for drawing out a cord for supplying power to 53. The cord drawn from the center hole 52 is connected to a connector 6 disposed at an asymmetrical position when viewed from the center of the substrate, and is electrically connected to the substrate 51 and a capacitor (not shown) by soldering or the like.

  In addition, the resin-made diffusion member 7 formed of a member that transmits light emitted from the light emitting element 53 has a shape that does not overlap with the light emitting element 53 when attached and can accommodate the connector 6 protruding to the lower surface side. The regulating member 71 is formed. The shape of the position of the restricting member 71 not corresponding to the connector 6 is formed shallower than the height of the connector 6. By providing this restricting member 71 in a position asymmetric with respect to the center of the light source 5 corresponding to the connector 6, the diffusion member 7 comes into contact with the connector 6 when trying to attach the right and left by mistake, The diffusion member 7 cannot be attached.

  The diffusion member 7 is provided with a plurality of screwing portions 73 that are screw holes for fixing the substrate 51 and the diffusion member 7 at left and right or up and down asymmetric positions as viewed from the center of the diffusion member 7. As for the screwing part 73, the outer peripheral part of the hole protrudes to the board | substrate 51 side at the height of the light emitting element 53 or more. Therefore, when the diffusing member 7 is attached, it contacts the substrate 51 to assist in positioning the diffusing member 7, and a resin outer peripheral convex portion 74 is arranged between the screw screwed into the screwing portion 73 and the substrate 51. Thus, the screw and the substrate 51 can be insulated. This screwing portion 73 enables safer and more effective regulation of the mounting direction in addition to the regulating member 71.

    The example of the illuminating device which is 2nd embodiment of this invention is demonstrated with reference to FIG. 3 and FIG. FIG. 4 shows a cross-sectional view taken along the line A-A ′ in FIG. 3.

  The illumination device of the second embodiment of the present invention is different from the first embodiment in the shapes of the diffusing member 7 and the regulating member 71. The restricting member 71 in the second embodiment is formed to a depth that can accommodate the connector 6 and is formed to cover the connector and the center hole as viewed from the front. Further, the diffusing member 7 in the second embodiment has a structure in which a lens 72 is provided for each of a plurality of light emitting elements 53 arranged irregularly as shown in FIG. 3 and FIG. It has become. The structure in which the lens 72 is provided for each light emitting element 53 enables efficient light emission.

  Further, the light emitting element 53 and the lens 72 are irregularly arranged in a planar shape, and the light emitting element 53 and the lens 72 are not disposed at the four corners of the outer edge portion, and the light emitting element 53 and the lens are disposed in the vicinity of the outer edge portion and the central portion. 72 is arranged so that the density is low. As a result, light that is blocked by the diffusing member cover 8 is reduced in the vicinity of the outer edge portion, and an area that is overlapped with the surrounding light emitting element 53 is reduced in the central portion, thereby enabling efficient and uniform light irradiation. It becomes. Further, by providing a portion where the light emitting element 53 is not provided adjacently, there is an effect that heat is easily radiated and excellent in heat dissipation.

Further, by supporting and fixing the outer edge portion of the diffusing member 7 with the diffusing member cover 8, it is not necessary to provide the screwing portion 73 on the outer edge portion of the diffusing member 7, leading to reduction of members and required man-hours. Furthermore, by providing the screwing portions 73 irregularly in the region excluding the outer edge portion of the diffusing member 7, it becomes possible to make the substrate 51 less likely to be distorted than when only the outer edge portion is screwed. . Furthermore, by providing a screwing portion 73 for fixing the substrate 51 to the main body 1 in a portion where the light emitting element 53 is not provided, it is possible to perform screwing in a space-saving manner and arrangement of a capacitor, leading to downsizing of the instrument. .

In these first and second embodiments, the connector 6 and the corresponding regulating member 71 and diffusion member 7 are provided not only in a laterally asymmetrical but also a vertically asymmetrical position, so that the effect of regulating the arrangement can be further enhanced. Good.

Next, a lighting device according to a third embodiment will be described with reference to FIG. FIG. 5 is a diagram illustrating an example of a cross section of the light source unit 5 and the diffusing member 7 of the lighting apparatus according to the third embodiment.

The diffusion member 7 in the third embodiment is formed to a depth that can cover the connector 6 as a whole covering the substrate 51. The restricting member 71 according to the third embodiment is provided. When the diffusion member 7 is to be attached to the left or right or upside down by the restriction member 71 in the third embodiment formed inside the upper surface of the diffusion member 7, the restriction member 71 in the third embodiment contacts the connector 6. Therefore, it is possible to prevent the diffusion member 7 from being fitted to the light source unit 5 in the wrong mounting direction.

  Also in the third embodiment, the light emitting element 53 of the light source unit 5 is disposed asymmetrically when viewed from the center of the light source surface 5, and a lens 72 is provided at a position corresponding to the light emitting element 53 as shown in FIGS. Thus, the effect of restricting the mounting direction of the diffusing member 7 may be enhanced. At that time, in the diffusing member 7 having the regulating member 71 in the first and second embodiments, the lens 72 is projected in the same front direction as the regulating member 71 in the first and second embodiments. By providing the lens 72 in the third embodiment, the lens 72 squeezes in the same back direction as the regulating member 71 in the third embodiment, or a spherical surface from the back side to the front side of the diffusing member 7. Luminous efficiency can be increased without increasing the thickness of the diffusing member 7 by using a lens 72 or the like provided by forming a concave portion.

In the most preferable form, the regulating member 71, the lens 72, and the screwing portion 73 are disposed at positions corresponding to the connector 6, the light emitting element 53, and the substrate 51, respectively. For example, the front surface of the light source unit 5 is square. In such a case, at least one of the regulating member 71, the lens 72, and the screwing portion 73 is the connector 6 or both when the diffusion member 7 is rotated 90 degrees horizontally from the correct mounting direction or 180 degrees. A configuration in which the light-emitting element 53 is not in contact with the light-emitting element 53 and is not easily fitted and is easily recognized as being in the wrong mounting direction is conceivable.

Although several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims and equivalents thereof.

1 ... Appliance body
11 ... screw
2 ... Arm
3… Power supply
4… Heat dissipation part
5 ... Light source
51 ... Board
52 ... Center hole
53 ... Light emitting device
6 ... Connector
7… Diffusion member
71 ... Regulator
72 ... Lens
73 ... Screw fixing part
74… Outer peripheral part convex part
8… Diffusion member cover

Claims (1)

With the body;
An arm portion attached to the main body;
A light source unit provided on the front side of the main body and having a plurality of light emitting elements disposed on a single substrate;
A heat dissipating part provided on the back side of the main body;
A power supply for supplying power to the light source;
A diffusing member that integrally covers a plurality of light emitting elements of the light source unit, regulates the mounting direction to the light source unit, and is provided with a regulating member at an asymmetrical position with respect to the center point of the substrate;
A lighting fixture comprising: