JP2022017949A - Lighting device including light source module unit - Google Patents

Abstract

To provide a lighting device including a light source module unit that is thin, can be increased in size, readily secures sufficient homogeneity in luminance to be applied to an actual building, and improves workability.SOLUTION: A lighting device 1 includes: a light source module unit 8 including multiple light source modules 7; and a light diffusion member 9 opposite the light source module unit 8, where the multiple light source modules 7 are fixed to a fixing frame 6.SELECTED DRAWING: Figure 1

Description

The present invention relates to a lighting device including a light source module unit.

As surface-emitting lighting devices used for signboards, signs, traffic information boards, etc., a direct-type lighting device with multiple light sources arranged on the back side of the display board and a light guide plate placed on the back side of the display board. , An edge light type lighting device or the like in which a light source is arranged on the side surface of the light guide plate is known.

In recent years, in order to further enhance the design effect of buildings, it has been required to increase the size of the light emitting surface in these surface emitting type lighting devices. As a device that satisfies the demand for such an increase in size, there is a surface-emitting type lighting device developed by the applicant of the present application described in JP-A-2020-53157.

Japanese Unexamined Patent Publication No. 2020-53157

In the surface-emitting type lighting device of Patent Document 1, by sufficiently ensuring the uniformity of brightness, even a thin lighting device can be increased in size, which has been required in recent years. In the design of a lighting device with a thin thickness as in Patent Document 1, in order to ensure sufficient uniformity of brightness, each member is considered in consideration of the dimensions and spacing of each member, the output of a light source, and the like. The position and dimensions of the are determined.

The applicant is also researching and developing examples of application to buildings such as walls, floors, and ceilings in order to further put this surface-emitting lighting device into practical use. In such a development process, the inventor of the present application has difficulty in providing a plurality of light source modules as designed in the application of a lighting device having a plurality of light source modules to a real building, and the plurality of light source modules are used. We have found that if the position is not as designed, it may not be possible to ensure sufficient uniformity of brightness.

The present invention has been made to solve the above-mentioned problems, is thin, can be increased in size, and can easily have sufficient uniformity of brightness even when applied to an actual building. It is an object of the present invention to provide a lighting device that can secure and improve workability.

The lighting device of the present invention for solving the above problems includes a light source module unit having a plurality of light source modules, a light diffusing member facing the light source module unit, and a fixed frame to which the light source module is fixed. ..

In the lighting device of the present invention, it is preferable that the light source module is formed with a through hole into which a fixture for attaching the light source module to the fixed frame is inserted.

In the lighting device of the present invention, it is preferable that the fixed frame has a receiving portion on which the lower end of the light source module is placed.

In the lighting device of the present invention, the fixed frame has a receiving portion on which the lower end of the light source module is placed, and the dimension of the through hole from the end of the light source module is the dimension of the fixed frame. It is preferable that the dimensions are the same from the fixed portion to which the light source module is fixed to the receiving portion.

In the lighting device of the present invention, it is preferable that a groove portion is formed in the fixed portion.

In the lighting device of the present invention, it is preferable that the fixed frame is formed with a holding groove portion for accommodating the upper end of the light source module.

In the lighting device of the present invention, it is preferable that the holding groove portion is partially formed by the receiving portion.

In the lighting device of the present invention, it is preferable that a plurality of LEDs are two-dimensionally arranged in the light source module.

According to the present invention, the thickness is thin, the size can be increased, and even when applied to an actual building, sufficient uniformity of brightness can be easily ensured and workability can be improved. It is possible to provide a lighting device that can be used.

Central vertical sectional view of the lighting device according to the first embodiment Same cross-sectional view Side view of the fixed frame showing the fixed state of the light source module Enlarged view of the part surrounded by a circle in FIG. Front view of LED module Front view of LED module for fraction adjustment (A) to (E) are diagrams showing the procedure for fixing the fixed frame and the LED module. Central vertical sectional view of the lighting device according to the second embodiment Same cross-sectional view Central vertical sectional view of the lighting device according to the third embodiment Same cross-sectional view Front view of a lighting device in which three lighting devices according to a third embodiment are arranged side by side.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in this specification, a common term is used for a common structure, and it is shown substantially the same in each figure and a detailed description is omitted, and it is shown by the same reference numeral as necessary.

The lighting device of the present invention includes a light source module unit having a plurality of light source modules, a light diffusing member facing the light source module unit, and a fixed frame to which the plurality of light source modules are fixed.

1 and 2 show a first embodiment of the lighting device of the present invention in the case of mounting on a wall surface of a building to form a light wall. In addition, in FIGS. 1 and 2, a part in the middle of the vertical direction and the horizontal direction is omitted, respectively. The lighting device 1 of the present embodiment shown in FIGS. 1 and 2 includes an upper frame 2, a lower frame 3, a right frame 4, a left frame 5, a fixed frame 6, a light source module unit 8 having a plurality of light source modules 7, and light diffusion. A member 9 is provided. In the present embodiment, the upper frame 2, the lower frame 3, the right frame 4 and the left frame 5 of the lighting device 1 are fixed to the wall surface of the building, respectively. The following description is based on a state in which the lighting device 1 is mounted on the wall surface of a building, unless otherwise specified.

The upper frame 2 can be, for example, a long aluminum molded product. The upper frame 2 of the present embodiment has a radiation side plane portion 21 located on the radiation direction side of the light of the lighting device 1, a skeleton side plane portion 22 located on the side opposite to the radiation direction of the light of the lighting device 1, and radiation. The intermediate plane portion 23 located between the side plane portion 21 and the skeleton side plane portion 22 and the connection plane portion 24 connected to the upper ends of the radiation side plane portion 21, the skeleton side plane portion 22 and the intermediate plane portion 23 are provided. ing. The upper frame 2 is fixed to the skeleton of the building by screwing the skeleton-side flat surface portion 22 and the skeleton of the building on which the lighting device 1 is mounted with the fixing screws 16.

At the lower end of the radiation side flat surface portion 21, a projecting portion 21a protruding toward the intermediate flat surface portion 23 is formed. At the lower end of the intermediate flat surface portion 23, a folded-back portion 23a is formed so as to project toward the radial side flat surface portion 21 and then toward the connecting flat surface portion 24. The intermediate flat surface portion 23 is also formed with a protruding portion 23b protruding toward the radial side flat surface portion 21 between the upper end and the lower end. In the connection plane portion 24, tapping holes 24a are formed between the radiation side plane portion 21 and the intermediate plane portion 23, and between the intermediate plane portion 23 and the skeleton side plane portion 22, respectively. The tapping hole 24a is used to fasten the assembly screw 18 for connecting to the right frame 4 and the left frame 5.

In the upper frame 2 of the present embodiment, the accommodating portion for accommodating the upper end of the light diffusing member 9 is configured by the space surrounded by the radiation side plane portion 21, the intermediate flat surface portion 23, and the connecting flat surface portion 24.

The lower frame 3 can be, for example, a long aluminum molded product. The lower frame 3 of the present embodiment has a radiation side plane portion 31 located on the radiation direction side of the light of the lighting device 1, a skeleton side plane portion 32 located on the side opposite to the radiation direction of the light of the lighting device 1, and radiation. An intermediate flat surface portion 33 located between the side flat surface portion 31 and the skeleton side flat surface portion 32, and a connecting flat surface portion 34 connected to the lower ends of the radial side flat surface portion 31, the skeleton side flat surface portion 32, and the intermediate flat surface portion 33 are provided. ing. The lower frame 3 is fixed to the skeleton of the building by screwing the flat surface portion 32 on the skeleton side and the skeleton of the building on which the lighting device 1 is mounted with the fixing screws 16.

At the upper end of the radiation side flat surface portion 31, a protruding portion 31a protruding toward the intermediate flat surface portion 33 is formed. At the upper end of the intermediate flat surface portion 33, a folded-back portion 33a is formed so as to project toward the radial side flat surface portion 31 and then toward the connecting flat surface portion 34. The intermediate flat surface portion 33 is also formed with a protruding portion 33b protruding toward the radial side flat surface portion 31 between the upper end and the lower end. In the connection plane portion 34, tapping holes 34a are formed between the radiation side plane portion 31 and the intermediate plane portion 33, and between the intermediate plane portion 33 and the skeleton side plane portion 32, respectively. The tapping hole 34a is used to fasten the assembly screw 18 for connecting to the right frame 4 and the left frame 5.

In particular, in the lower frame 3 of the present embodiment, extension portions 35 and 36 having an L-shaped cross section are formed on the lower surface of the connection flat surface portion 34. The extension portion 35 is formed between the radiation side plane portion 31 and the intermediate plane portion 33, and the extension portion 36 is an end of the connection plane portion 34 opposite to the light emission direction of the lighting device 1 (the extension portion 35). It is formed below the flat surface portion 32 on the skeleton side). Further, a step portion 37 set back from the radiation side plane portion 31 to the skeleton side is formed by the radiation side plane portion 31, the connection plane portion 34, and the extension portion 35. The tip of the floor finishing material can be inserted into the step portion 37, which improves the aesthetic appearance and workability of the finished product.

In the lower frame 3 of the present embodiment, the accommodating portion accommodating the lower end of the light diffusing member 9 is configured by the space surrounded by the radiation side plane portion 31, the intermediate plane portion 33, and the connecting plane portion 34.

Since the right frame 4 and the left frame 5 are configured substantially the same, a configuration example of the right frame 4 will be described, and a description of the configuration example of the left frame 5 will be omitted. In the present embodiment, as shown in FIG. 2, the right frame 4 can be, for example, a long aluminum molded product, and its cross-sectional shape is formed in a substantially rectangular shape. In the right frame 4 of the present embodiment, five groove portions 4c, 4d, 4e, 4f and 4g are formed on the skeleton side surface 4b opposite to the light diffusing member side surface 4a facing the left frame 5. Of these grooves, assembly screws 18 for connecting to the upper frame 2 and the lower frame 3 are fastened to the grooves 4c and 4g. Further, a fixing screw 16 for fixing the right frame 4 to the frame of the building on which the lighting device 1 is mounted is screwed to the groove portion 4e. The five groove portions 4c, 4d, 4e, 4f and 4g have a depth at which the head of the assembly screw 18 does not protrude toward the skeleton side.

FIG. 3 is a side view of the fixed frame 6 showing a state in which the light source module 7 is fixed, and FIG. 4 is an enlarged view of a portion surrounded by a circle in FIG. The fixed frame 6 can be, for example, a long aluminum molded product. The fixed frame 6 of the present embodiment includes a mounting surface portion 61, a fixing portion 62 formed above the mounting surface portion 61, a receiving portion 64 formed below the mounting surface portion 61 via a connecting portion 63, and a receiving portion. It is provided with a holding groove portion 65 formed below the 64. The fixed frame 6 is attached to the skeleton of the building by screwing the mounting surface portion 61 and the skeleton of the building on which the lighting device 1 is mounted with the fixing screws 16.

The light source module 7 is fixed to the fixing portion 62 by a mounting screw 17 which is a mounting tool. The fixed portion 62 of the present embodiment is formed with a groove portion to which the light source module 7 can be screwed.

Specifically, one end of the connecting portion 63 is connected to the lower end of the mounting surface portion 61, and the other end is configured to be flush with the tip of the fixing portion 62. In the present embodiment, the receiving portion 64 is connected to the vicinity of the other end of the lower surface of the connecting portion 63.

The receiving portion 64 of the present embodiment has an L-shape including a first portion 64a extending in parallel with the mounting surface portion 61 and a second portion 64b extending in the radiation direction of the light of the lighting device 1. ing. The lower end of the light source module 7 fixed to the fixed portion 62 is placed on the upper surface of the second portion 64b.

The holding groove portion 65 is configured to accommodate the upper end of the light source module 7, and accommodates the upper end of another light source module 7 fixed to the lower side of the light source module 7 fixed to the fixed portion 62. When the light source module 7 fixed to the fixed portion 62 is the lowest layer, the upper end of the light source module 7 is not accommodated in the holding groove portion 65.

The holding groove portion 65 of the present embodiment has a first portion 65a that extends continuously in parallel to the mounting surface portion 61 to the first portion 64a of the receiving portion 64, and the light of the lighting device 1 from the lower end of the first portion 65a. A second portion 65b extending in the radial direction and a third portion 65c extending parallel to the mounting surface portion 61 from the radiation direction side end portion of the light of the illuminating device 1 of the second portion 64b of the receiving portion 64 are provided. ing. In particular, the holding groove portion 65 of the present embodiment is composed of a first portion 65a, a second portion 65b, a third portion 65c, and a second portion 64b of the receiving portion 64. As described above, in the present embodiment, the holding groove portion 65 is partially formed by the receiving portion 64. However, the holding groove portion 65 may be configured completely separately from the receiving portion 64.

The tip of the second portion 65b of the holding groove portion 65 is configured to be flush with the tip of the fixing portion 62 and the other end of the connecting portion 63.

FIG. 5 is a front view of the LED module 7A in which a plurality of LEDs used as the light source module 7 in the present embodiment are two-dimensionally arranged, and FIG. 6 is a front view of the fraction adjustment LED module 7B. The light source module unit 8 can be configured by combining a plurality of these LED modules 7A and the fraction adjusting LED module 7B. In the present embodiment, the light source module unit 8 is configured by arranging two LED modules 7A in the vertical direction and two in the horizontal direction. The distance (clearance) between the LED modules 7A in the left-right direction is the same as the vertical dimension t (plate thickness in this embodiment) of the second portion 64b of the receiving portion 64 of the fixed frame 6.

In the LED module 7A of the present embodiment, there are 8 rows in the vertical direction and 7 rows in the horizontal direction so that the pair of LEDs 72 are evenly spaced from each other on the surface 71a of the substantially rectangular substrate 71 having a size of about 290 mm × 290 mm. It is arranged in a grid pattern. Electricity is supplied to the LED module 7A by a known power feeding structure such as an electric cable.

As shown in FIG. 5, the substrate 71 of the LED module 7A of the present embodiment is provided with a plurality of through holes 73 penetrating the back surface 71b at positions along the diagonal line of the rectangle of the front surface 71a. The core of the through hole 73 of the present embodiment has a dimension A from the end of the substrate 71 of the LED module 7A, that is, the side of the rectangular substrate 71, and the core of the fixing portion 62 of the fixing frame 6 (the core of the mounting screw 17). ) To the second portion 64b (upper surface) of the receiving portion 64 so as to have the same dimension A. In particular, the core of the through hole 73 of the present embodiment has a distance from two adjacent sides of the substrate 71 of the LED module 7A from the core of the fixed portion 62 of the fixed frame 6 to the second portion 64b (upper surface) of the receiving portion 64. It is provided so as to have the same dimensions as A up to. The board 71 is further provided with a plurality of connectors 74, respectively.

The fraction adjustment LED module 7B has 8 rows in the vertical direction and 7 rows in the horizontal direction so that the pair of LEDs 72 are evenly spaced from each other on the surface 71a of the substantially rectangular substrate 71 having a size of about 290 mm × 290 mm. The one arranged in a grid pattern can be divided into four equal parts, and the LED 72s are arranged in two rows in the vertical direction and seven rows in the horizontal direction in the LED modules 7B1 to 7B4 for fraction adjustment, respectively. In addition, in FIG. 6, the module 7B before being divided into four equal parts is shown, and a cut line is provided in the divided portion. The fraction adjusting LED module 7B is also supplied with electricity by a known power feeding structure such as an electric cable.

As shown in FIG. 6, the substrate 71 of the fraction adjustment LED modules 7B1 to 7B4 of the present embodiment is provided with two through holes 73 penetrating through the back surface 71b. The core of the through hole 73 of the present embodiment has a dimension A from the end of each of the substrate 71s of the fraction adjustment LED modules 7B1 to 7B4, that is, the side of the rectangular substrate 71, of the fixed portion 62 of the fixed frame 6. It is provided so as to have the same dimension A from the core to the second portion 64b (upper surface) of the receiving portion 64. In particular, the core of the through hole 73 of the present embodiment has dimensions from two adjacent sides of the respective boards 71 of the LED modules 7B1 to 7B4 for fraction adjustment from the core of the fixed portion 62 of the fixed frame 6 to the receiving portion 64. It is provided so as to have the same dimension A up to the portion 64b of 2. The board 71 is further provided with two connectors 74, respectively.

In the present embodiment, the light diffusing member 9 is composed of a glass plate made of laminated glass having a milky white interlayer film. In the present invention, the surface of the light source module unit 8 where a light source such as an LED is arranged, the surface of the light diffusing member 9 facing the light source module unit 8 (inner side surface) and / or the light source module unit 8 of the light diffusing member 9 It is preferable that the surface facing the surface and the surface opposite to the surface (outer surface) are parallel to each other.

As shown in FIG. 1, in the present embodiment, the light diffusing member 9 is positioned in the vertical direction by placing it on the setting block 10 provided on the lower frame. The upper end and the lower end of the light diffusing member 9 are housed in the accommodating portions of the upper frame 2 and the lower frame 3 in a state of being sandwiched between the pre-attached bead 11 and the post-attached bead 12 as in the known FIX window.

The advance bead 11 is made of soft vinyl chloride, and is between the folded-back portion 23a and the protruding portion 23b of the intermediate flat surface portion 23 of the upper frame 2, and the folded-back portion 33a and the protruding portion of the intermediate flat surface portion 33 of the lower frame 3. It has a shape that is held by the intermediate plane portion 23 and the intermediate plane portion 33 by being partially inserted between the portions 33b.

The retrofit bead 12 is made of soft vinyl chloride, and is between the protruding portion 21a of the radial side flat portion 21 of the upper frame 2 and the outer surface of the light diffusing member 9, and the radial side flat portion 31 of the lower frame 3. By fitting (inserting) between the projecting portion 31a of the above and the outer surface of the light diffusing member 9, the shape is held by the radiating side flat surface portion 21 and the radiating side flat surface portion 31.

As shown in FIG. 2, in the present embodiment, a silicon joint material 13 is provided between the right frame 4 and the left frame 5 and the light diffusing member 9. When the lighting device 1 has two or more light diffusing members 9, the joint material 13 is also provided between the light diffusing members 9.

Next, the procedure for fixing the fixed frame and the LED module in the present embodiment will be described with reference to FIG. 7. First, as shown in FIG. 7A, the fixing frame 6 to which the light source module 7 of the lowermost layer is fixed is screwed to a desired position of the building frame (specifically, the base material) with the fixing screws 16. By doing so, it will be installed. In the present embodiment, as shown in FIG. 1, the lower end of the mounting surface portion 61 (lower surface of the connecting portion 63) of the fixed frame 6 to which the light source module 7 of the lowermost layer is fixed is set to the skeleton side flat surface portion 32 of the lower frame 3. By abutting on the upper end, the fixing frame 6 to which the light source module 7 of the lowermost layer is fixed is positioned in the vertical direction and the lateral direction (longitudinal direction).

Next, as shown in FIGS. 7B and 7C, the lower end of the light source module 7 hits the second portion 64b of the receiving portion 64 of the fixed frame 6 from above the receiving portion 64 of the fixed frame 6. Get in touch. At this time, the tip of the fixed portion 62 of the fixed frame 6 and the tip of the connecting portion 63 come into contact with the back surface 71b of the light source module 7 so that the substrate 71 of the light source module 7 and the mounting surface portion 61 of the fixed frame 6 are parallel to each other. Can be done. In particular, in the present embodiment, the through hole 73 of the light source module 7 has a dimension A from the end portion of the light source module 7 from the core of the fixed portion 62 of the fixed frame 6 to the second portion 64b of the receiving portion 64. Since the light source module 7 is formed at the same position as the above, the position of the through hole 73 and the fixed portion 62 can be determined simply by placing the light source module 7 in contact with the second portion 64b of the receiving portion 64 of the fixed frame 6. Can be matched.

Next, as shown in FIG. 7C, the fixing portion 62 in which the groove portion is formed and the light source module 7 are fixed by the mounting screws 17.

Next, as shown in FIG. 7D, the upper end of the light source module 7 fixed to the fixed portion 62 is fitted into the holding groove portion 65 of another fixed frame 6. At this time, the tip of the second portion 65b of the holding groove portion 65 comes into contact with the back surface 71b of the light source module 7, so that the parallel relationship between the substrate 71 of the light source module 7 and the mounting surface portion 61 of another fixed frame 6 is maintained. .. In particular, in the present embodiment, the mounting position of another fixed frame 6 in which the upper end of the light source module 7 is fitted in the holding groove portion 65 is guided by the upper end of the light source module 7 in the vertical direction, so that positioning in the vertical direction is easy. It can be carried out.

Next, as shown in FIG. 7 (E), with the upper end of the light source module 7 fitted in the holding groove portion 65, another fixed frame 6 is attached to the building frame in the same manner as in FIG. 7 (A). It is attached by screwing with the fixing screw 16. By repeating the operations of FIGS. 7A to 7E according to the number of light source modules 7 to be stacked in the vertical direction, a desired number of light source modules 7 can be stacked in the vertical direction.

In the lighting device of the above embodiment, the light source module 7 constituting the light source module unit 8 is fixed to the fixed frame 6. In such a lighting device 1, a plurality of light source modules 7 can be provided as designed only by fixing the light source module 7 to the fixed frame 6. Therefore, even when a lighting device having a thin thickness and being able to be increased in size is applied to an actual building, it is possible to easily secure sufficient uniformity of brightness and improve workability. ..

In the lighting device 1 of the above embodiment, the light source module 7 is formed with a through hole 73 into which a mounting screw 17 which is a mounting tool for mounting the light source module 7 to the fixed frame 6 is inserted. Therefore, the light source module 7 can be easily attached to the fixed frame 6.

In the lighting device 1 of the above embodiment, the fixed frame 6 has a receiving portion 64 on which the lower end of the light source module 7 is placed. Therefore, the light source module 7 can be easily positioned and attached to the fixed frame 6.

In the lighting device 1 of the above embodiment, the dimension A from the end of the light source module 7 of the core of the through hole 73 is the second from the core of the fixed portion 62 to which the light source module 7 of the fixed frame 6 is fixed to the receiving portion 64. It is the same as the dimension A up to the portion 64b of. Therefore, the positions of the through hole 73 and the fixed portion 62 can be aligned only by placing the light source module 7 in contact with the receiving portion 64 of the fixed frame 6.

In the lighting device 1 of the above embodiment, a groove portion is formed in the fixed portion 62. Therefore, screwing when attaching the light source module 7 to the fixed frame 6 can be easily performed. Further, it is not necessary to machine a pilot hole for screwing in the fixing portion 62.

In the lighting device 1 of the above embodiment, the fixed frame 6 is formed with a holding groove portion 65 for accommodating the upper end of the light source module 7. Therefore, the fixed frame 6 accommodating the upper end of the light source module 7 is guided by the upper end of the light source module 7 in the mounting position in the vertical direction, and can be easily positioned in the vertical direction.

Further, in the lighting device 1 of the above embodiment, the holding groove portion 65 is partially formed by the receiving portion 64. Therefore, the distance (clearance) between the light source modules 7 adjacent to each other in the vertical direction is the same as the vertical dimension t of the second portion 64b of the receiving portion 64 of the fixed frame 6, so that the distance between the upper and lower light source modules 7 is the same. (Clearance) can be easily controlled.

Further, in the lighting device 1 of the above embodiment, the lower end of the mounting surface portion 61 (lower surface of the connecting portion 63) of the fixed frame 6 to which the light source module 7 of the lowermost layer is fixed is placed on the upper end of the skeleton side flat surface portion 32 of the lower frame 3. It is in contact. Therefore, positioning in the vertical direction and the lateral direction (longitudinal direction) of the fixed frame 6 to which the light source module 7 of the lowermost layer is fixed can be particularly easily performed.

In the first embodiment shown in FIG. 1, in the vertical direction of the lighting device 1, the light source module unit 8 extends from the lower end of the skeleton-side flat surface portion 22 of the upper frame 2 to the upper end of the skeleton-side flat surface portion 32 of the lower frame 3. Is postponed. However, depending on the dimensions of the wall surface of the building (installation dimensions of the lighting device 1), the distance between the lower end of the skeleton-side flat surface portion 22 of the upper frame 2 and the upper end of the skeleton-side flat surface portion 32 of the lower frame 3 is the light source module unit. It may be larger than the dimension from the upper end of 8 to the upper end of the skeleton-side flat surface portion 32 of the lower frame 3.

In this case, the number of light source modules 7 in the vertical direction of the light source module unit 8 may be increased. However, in the vertical direction of the lighting device 1, the dimension from the lower surface of the connection flat surface portion 24 of the upper frame 2 to the upper end of the light source module unit 8 is shorter than the vertical dimension of the light source module 7, and the vertical direction of the light source module unit 8 is up and down. It may not be possible to increase the number of light source modules 7 in the direction.

In such a case, the lighting device of the present invention can be configured as in the second embodiment shown in FIG. In the embodiment of FIG. 8, the light source module unit 8 is configured by arranging one LED module 7A in the vertical direction and four in the horizontal direction. The distance (clearance) between the LED modules 7A in the left-right direction is the same as the vertical dimension t of the second portion 64b of the receiving portion 64 of the fixed frame 6. Further, in the second embodiment shown in FIG. 8, the two upper frames 2 are connected to the joint metal fitting 14 by screwing them in the left-right direction of the lighting device 1. Similarly, in the left-right direction of the lighting device 1, the two lower frames 3 are connected by screwing to the joint fitting 14. Further, in the second embodiment shown in FIG. 8, the lower frame 3 has the same shape as the upper frame 2.

In the second embodiment, the fixed frame 6 to which the LED module 7A is fixed is attached to the skeleton of the building without abutting the lower end of the mounting surface portion 61 with the upper end of the skeleton side flat portion 32 of the lower frame 3. ing. When such a configuration is adopted, the distance B between the light source module unit 8 and the light diffusing member 9 (the distance between the surface 71a of the LED module 7A and the inner surface of the light diffusing member 9) is the upper and lower sides of the lighting device 1. It is preferable that the distance C is larger than the distance C between the lower end of the light source module unit 8 (the upper surface of the second portion 64b of the receiving portion 64) and the upper end of the skeleton-side flat portion 32 of the lower frame 3 in the direction. With such a relationship, it is possible to prevent the lower portion of the lighting device 1 from becoming dark, and it is possible to easily ensure sufficient uniformity of brightness.

In the second embodiment, in the vertical direction of the lighting device 1, the upper end of the light source module unit 8 does not extend to the lower end of the skeleton-side flat portion 22 of the upper frame 2. When such a configuration is adopted, the distance B between the light source module unit 8 and the light diffusing member 9 is the upper end of the light source module unit 8 in the vertical direction of the lighting device 1 and the skeleton side flat surface portion 22 of the upper frame 2. It is preferably larger than the distance D from the lower end. With such a relationship, it is possible to prevent the upper portion of the lighting device 1 from becoming dark, and it is possible to easily ensure sufficient uniformity of brightness.

In the second embodiment, the distance C between the lower end of the light source module unit 8 and the upper end of the skeleton-side flat surface portion 32 of the lower frame 3 in the vertical direction of the lighting device 1 and the upper end of the light source module unit 8 and the upper frame 2 The distance D from the lower end of the skeleton-side flat surface portion 22 is the same. However, the distance C between the lower end of the light source module unit 8 and the upper end of the skeleton-side flat surface portion 32 of the lower frame 3 in the vertical direction of the lighting device 1 and the upper end of the light source module unit 8 and the skeleton-side flat surface portion 22 of the upper frame 2 It may be different from the distance D from the lower end. Further, in the vertical direction of the lighting device 1, between the lower end of the light source module unit 8 and the upper end of the skeleton side flat portion 32 of the lower frame 3, and between the upper end of the light source module unit 8 and the skeleton side flat portion 22 of the upper frame 2. A gap C or a gap D may be formed on only one of the two ends of the space.

Further, in the first embodiment shown in FIG. 2, the light source module unit 8 extends over the entire light diffusing member 9 in the left-right direction of the lighting device 1. However, depending on the size of the wall surface of the building (installation size of the lighting device 1), the size of the light source module unit 8 in the left-right direction of the lighting device 1 may be smaller than the size of the light diffusing member 9 in the left-right direction. sell.

In this case, it may be possible to increase the number of LED modules 7A in the left-right direction of the light source module unit 8. However, in the left-right direction of the lighting device 1, the difference between the inner dimension between the right frame 4 and the left frame 5 and the outer dimension of the light source module unit 8 is shorter than the left-right dimension of the LED module 7A. , It may not be possible to increase the number of LED modules 7A in the left-right direction of the light source module unit 8.

In such a case, the lighting device of the present invention can be configured as shown in the cross-sectional view of the second embodiment shown in FIG. In the embodiment of FIG. 9, both ends of the light source module unit 8 do not have to extend to both ends of the light diffusing member 9 in the left-right direction of the lighting device 1. When such a configuration is adopted, the distance B between the light source module unit 8 and the light diffusing member 9 is set on the left and right sides of both ends of the light source module unit 8 and both ends of the light diffusing member 9 in the left-right direction of the lighting device 1. It is preferable that the intervals E and F are larger than the above intervals E and F. With such a relationship, it is possible to prevent the end portion of the lighting device 1 in the left-right direction from becoming dark, and it is possible to easily ensure sufficient uniformity of brightness. In this embodiment, the left-right dimension of the light diffusing member 9 and the left-right dimension of the fixed frame 6 are the same.

In the second embodiment, the distance E between the left frame side end of the light source module unit 8 and the left frame side end of the light diffusing member 9 in the left-right direction of the lighting device 1 and the right side of the light source module unit 8. The distance F between the end portion on the frame side and the end portion on the right frame side of the light diffusing member 9 is the same. However, the distance E between the end of the light source module unit 8 on the left frame side and the end of the light diffusing member 9 on the left frame side in the left-right direction of the lighting device 1 and the end of the light source module unit 8 on the right frame side. The distance F from the end of the light diffusing member 9 on the right frame side may be different. Further, in the left-right direction of the lighting device 1, between the end of the light source module unit 8 on the left frame side and the end of the light diffusing member 9 on the left frame side, and the end of the source module unit 8 on the right frame side. A gap E or a gap F may be formed on only one of the light diffusing member 9 and the end portion on the right frame side of the light diffusing member 9.

10 is a central vertical sectional view of the lighting device according to the third embodiment, FIG. 11 is a horizontal sectional view thereof, and FIG. 12 is an illumination configured by arranging three lighting devices according to the third embodiment. It is a front view of the apparatus.

In the third embodiment, six LED modules 7A are arranged in the vertical direction and nine in the horizontal direction in one lighting device 1. The distance (clearance) between the LED modules 7A in the left-right direction is the same as the vertical dimension t of the second portion 64b of the receiving portion 64 of the fixed frame 6. In this third embodiment, the upper frame and the lower frame of the first embodiment having long left-right dimensions are used as the upper frame 2 and the lower frame 3.

In the third embodiment, as in the first embodiment, the lower end of the mounting surface portion 61 of the fixed frame 6 to which the LED module 7A of the lowermost layer is fixed is attached to the upper end of the skeleton side flat portion 32 of the lower frame 3. By abutting them, the fixing frame 6 to which the LED module 7A of the lowermost layer is fixed is positioned in the vertical direction and the lateral direction (longitudinal direction).

In the third embodiment, the wet sealing material 15 is used instead of the retrofit bead 12. Further, in the third embodiment, the light diffusing member 9 is configured by arranging three glass plates in the left-right direction in one lighting device 1. Further, a sealing material 15 is also provided between the glass plates in the left-right direction, between the glass plate and the right frame 4, and between the glass plate and the left frame 5.

In the third embodiment, in the vertical direction of the lighting device 1, the upper end of the LED module 7A on the uppermost layer does not extend to the lower end of the skeleton-side flat surface portion 22 of the upper frame 2. Further, the distance B between the LED module 7A and the light diffusing member 9 is smaller than the distance D between the upper end of the uppermost layer LED module 7A and the lower end of the skeleton side flat portion 22 of the upper frame 2 in the vertical direction of the lighting device 1. .. Therefore, in the third embodiment, the LED module 7B for fraction adjustment is added to the uppermost layer of the LED module 7A to form the light source module unit 8. In the present embodiment, the fraction adjustment LED modules 7B1 to 7B3 (the module 7B4 is separated) are attached to the upper part of the uppermost layer LED module 7A via the fixed frame 6. Even with such a configuration, it is possible to correspond to the dimensions of the wall surface of the building.

In the above embodiment, the embodiment of mounting on the wall surface of a building to form a light wall has been described, but the lighting device of the present invention can also be mounted on the ceiling or floor of a building, or a lighting device for a signboard. It can also be.

In the above embodiment, the case where the light diffusing member 9 is a glass plate has been described, but the light diffusing member 9 can be made of any material having translucency or semipermeable properties such as paper, cloth, and resin. Is.

In the above embodiment, the case where the fraction adjustment LED module 7B is attached to the uppermost layer of the LED module 7A has been described, but the fraction adjustment LED module 7B can also be attached to the left-right end portion of the lighting device 1.

The present invention can be grasped as a wall surface and a building provided with the lighting device of the present invention. Further, the present invention can be grasped as a light source device including a light source module unit and a fixed frame in the lighting device of the present invention.

The present invention is not limited to the embodiments described above, and many modifications are possible by those having ordinary knowledge in the art within the technical idea of the present invention.

According to the present invention, a lighting device that is thin and can be increased in size, easily secures sufficient uniformity of brightness even when applied to an actual building, and improves workability. Can be provided.

1: Lighting device 2: Upper frame 21: Radiant side flat part 21a: Projection side 22: Frame side flat part 23: Intermediate flat part 23a: Folded part 23b: Protruding part 24: Connection flat part 24a: Tapping hole 3: Lower frame 31: Radiation side plane part 31a: Projection part 32: Frame side plane part 33: Intermediate plane part 33a: Folded part 33b: Projection part 34: Connection plane part 34a: Tapping hole 37: Step part 4: Right frame 4a: Light diffusion Member side surface 4b: Frame side surface 4c: Groove part 4d: Groove part 4e: Groove part 4f: Groove part 4g: Groove part 5: Left frame 6: Fixed frame 61: Mounting surface part 62: Fixed part 63: Connection part 64: Receiving part 64a: First Part 64b: Second part 65: Retaining groove 65a: First part 65b: Second part 65c: Third part 7: Light source module 7A: LED module 7B: Fraction adjustment LED module 71: Board 72: LED 73: Through hole 74: Connector 8: Light source module unit 9: Light diffusing member 10: Setting block 11: Pre-attached bead 12: Retro-attached bead 13: Joint material 14: Joint metal fitting 15: Seal material 16: Fixing screw 17: Mounting screw 18 : Assembly screw

Claims (8)

A light source module unit having multiple light source modules and
A light diffusing member facing the light source module unit and
A lighting device including a fixed frame to which the light source module is fixed. The lighting device according to claim 1, wherein the light source module is formed with a through hole into which a fixture for attaching the light source module to the fixed frame is inserted. The lighting device according to claim 1 or 2, wherein the fixed frame has a receiving portion on which the lower end of the light source module is placed. The fixed frame has a receiving portion on which the lower end of the light source module is placed.
The lighting device according to claim 2, wherein the dimension of the through hole from the end of the light source module is the same as the dimension from the fixed portion to which the light source module of the fixed frame is fixed to the receiving portion. The lighting device according to claim 4, wherein a groove is formed in the fixed portion. The lighting device according to any one of claims 1 to 5, wherein the fixed frame is formed with a holding groove portion for accommodating the upper end of the light source module. The fixed frame is formed with a holding groove portion for accommodating the upper end of the light source module.
The lighting device according to claim 3, wherein the holding groove portion is partially formed by the receiving portion. The lighting device according to any one of claims 1 to 7, wherein the light source module has a plurality of LEDs arranged two-dimensionally.

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