JP2015053212A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system, particularly, a long lighting system having a plurality of LED modules, which can be adequately and simply installed while preventing the deflection.SOLUTION: A lighting system 100 includes a body 1 to be attached to an attachment surface such as a ceiling surface, and an LED module 2 mounted on the body 1. The LED module 2 consists of a plurality of LED module units 20. Each LED module unit 20 has a power supply box 25 for supplying electricity to the lighting system 100, and an LED substrate on which a plurality of LED elements are packaged for emitting light with the electricity supplied by the power supply box 25. The power supply box 25 is installed at a position where a distance from the end in the longitudinal direction of the lighting system 100 is shorter than a distance from the center thereof. A power supply terminal board and a lighting control terminal board provided on the body 1 are arranged on the further center side in the longitudinal direction of the lighting system 100 than the power supply box 25.

Description

  The present invention mainly relates to an improvement of a straight tube type lighting device mainly installed on a ceiling surface of a relatively large facility such as a commercial facility such as a business office or a store, and in particular, a long length having a plurality of LED modules. Even if it is a shape-like illuminating device, it is related to preventing bending and installing simply and appropriately.

  In recent years, LED lamps with built-in power supplies that use LED elements with excellent power savings as light sources have become widespread due to increasing environmental awareness. In particular, recently, a straight tube type LED lighting device having a long LED module has been developed and introduced into the market as an alternative product of a relatively long straight tube fluorescent lamp.

  Such a straight tube type LED lighting device generally includes a main body (chassis) attached to a surface to be attached such as a ceiling surface and an LED module attached to the main body, and a power supply box incorporating electronic components is provided. It is installed. In this case, since the lighting device is usually mounted on a mounting surface such as a ceiling surface in the vicinity of both ends in the longitudinal direction of the power supply box, the mounting location is avoided and the lighting device is focused on the overall balance. (See, for example, Patent Document 1).

  However, the power supply box with built-in electronic components is relatively heavy among electronic devices mounted on the lighting device. Thus, when installed near the center in the longitudinal direction, As a result of the longer distance from the mounting location and the greater moment, the lighting device may be bent near the center. In particular, in a long illuminating device having a length of nearly 200 cm or more, the tendency is further strengthened, and in particular, when a plurality of power supply boxes 25 are installed as shown in FIG. If the box 25 is also arranged closer to the center, the load concentrates in the center portion, so that in some cases, the mounting state becomes unstable, which may cause deformation of the lighting device. In this case, particularly, as shown in FIG. 12, when the power supply box 25 is installed on the LED module 2 side, the LED module 2 itself installed in a form suspended from the main body 1 may be further deformed. There is also a need to consider this point.

  Moreover, in such a long illuminating device, the position and interval of the mounting bolts differ depending on the surface to be mounted, and in order to cope with this, manufacturing different types of lighting measures, There was a problem that labor and cost were required for manufacturing.

  In addition, in the long LED lighting device, the length of the cable to be wired is relatively long. In particular, in the lighting device having a dimming circuit, the length of the dimming cable is long. When the length is long, a high-frequency dimming signal may cause noise, and thus it is necessary to avoid interference with other electronic components as much as possible.

  Furthermore, in such a long LED lighting device, it can be said that it is desirable to configure a plurality of LED modules alone in consideration of maintenance work such as mounting and assembly workability, maintenance, and replacement. In this case, the interval between the LED elements in each single LED module is different from the interval between the LED elements between the adjacent LED modules when the plurality of LED modules are continuously arranged. Therefore, there is a problem that continuous and uniform light emission cannot be secured between the LED modules alone, and the LED illumination device cannot irradiate light uniformly. At the same time, when a plurality of LED modules are arranged, it is necessary to consider mutual interference due to thermal expansion, and when different types of LED modules are prepared, there is a problem that the labor and cost of manufacturing increase.

JP 2013-89579 A

  In view of the above problems, the problem to be solved by the present invention is to prevent the bending even in the case of a long lighting device having a plurality of LED modules, and to install it appropriately and simply. At the same time, in particular, it is possible to eliminate problems such as manufacturing effort and cost increase, generation of noise, influence of thermal expansion, etc. when a plurality of LED modules are combined to form a long LED module. It is in providing the illuminating device which can be performed.

  As a first means for solving the above-described problems, the present invention is an illumination device including a main body attached to a surface to be attached such as a ceiling surface, and an LED module attached to the main body. The module is composed of a plurality of LED modules, and each LED module is mounted on a power supply box that supplies electricity to the lighting device, and an LED substrate on which a plurality of LED elements that emit light by electricity supplied from the power supply box are mounted. The power supply box installed for each LED module is installed at a position where the distance from the end portion is shorter than the distance from the center portion in the longitudinal direction of the lighting device. An illumination device is provided.

  Further, the present invention provides a second means for solving the above-mentioned problems. In the first solving means, the main body has a power terminal block, and the power terminal block is installed for each LED module alone. An illumination device is provided that is arranged closer to the center side in the longitudinal direction of the illumination device than the power supply box.

  According to the present invention, as a third means for solving the above-described problems, in the first or second solving means, the main body also has a dimming terminal block. The present invention provides an illumination device characterized in that the illumination device is disposed closer to a central portion in the longitudinal direction of the illumination device than a power supply box installed for each LED module.

  According to the present invention, as a fourth means for solving the above-described problem, in the above-described second or fourth solving means, the dimming terminal block and the power terminal block installed in the main body are each LED modules. Provided is a lighting device characterized in that a plurality of units are installed at positions corresponding to each unit.

  According to the present invention, as a fifth means for solving the above-described problems, in any one of the second to fourth solving means, the dimming terminal block and the power terminal block installed in the main body are each LED modules. The present invention provides an illumination device that is arranged between a plurality of power supply boxes installed for each unit.

  According to the present invention, as a sixth means for solving the above-described problem, in any one of the first to fifth solving means, the power supply box is installed on the back side of the LED substrate. An illumination device is provided.

  According to the present invention, as a seventh means for solving the above-described problem, in any one of the first to sixth solving means, the main body engages with the mounted LED module to position the LED module. An illumination device having a stopper for fixing is provided.

  According to the present invention, as an eighth means for solving the above-described problem, in any one of the first to seventh solving means, the main body is attached by a fixing tool for attaching the main body to the attachment surface. The illumination device is characterized in that it has holes, and the attachment holes are composed of a plurality of sets of attachment holes having a plurality of different intervals.

  According to the present invention, as a ninth means for solving the above-described problem, in the eighth solving means, the plurality of different intervals between the plurality of sets of mounting holes are 1200 mm and 1400 mm. Is to provide.

  According to the present invention, as a tenth means for solving the above-described problem, in any of the eighth or ninth solving means, the plurality of sets of mounting holes are formed at positions that do not overlap with the power supply box. An illumination device characterized by the above is provided.

  According to the present invention, as an eleventh means for solving the above problem, in any one of the first to tenth solving means, the LED module has a heat sink to which the LED substrate is mounted, and the heat sink Has a substantially U-shaped cross section composed of a bottom surface portion and both wall surface portions, and has a folded portion formed by folding the upper ends of both wall surface portions toward the bottom surface portion side. A device is provided.

  The present invention provides, as a twelfth means for solving the above-mentioned problem, an illuminating device according to the eleventh solution means, wherein the LED substrate is mounted on a heat sink via an insulating sheet. It is to provide.

  According to the present invention, as a thirteenth means for solving the above problem, in any one of the eleventh and twelfth solving means, the power supply box is formed from the central portion of the heat sink so as to form a cable installation portion. Provided is a lighting device characterized in that the lighting device is biased toward one wall surface side.

  According to the present invention, as a fourteenth means for solving the above problems, in any one of the first to thirteenth solving means, the main body is formed by cutting out a part of the inner wall surface of the main body. It has a fixing piece which is bent at the time of wiring and fixes the cable, and the fixing piece is provided on the inner wall surface on both sides of the main body.

  According to the present invention, as a fifteenth means for solving the above-described problem, in any one of the third to fourteenth solving means, the main body is connected to the power terminal block among the cables introduced from the attached surface. In addition to the power supply cable hole through which the cable to be connected passes, there is also provided a lighting device characterized by having a dimming cable hole through which the cable to be connected to the dimming terminal block is passed.

  According to the present invention, as a sixteenth means for solving the above-described problem, in the fifteenth solving means, the dimming cable hole is provided on a side opposite to the power supply box on both sides of the dimming terminal block. An illumination device is provided, wherein the light control cable is formed and introduced into the main body so as to face the power supply box.

  According to the present invention, as a seventeenth means for solving the above problem, in any one of the fourth to sixteenth solving means, a cable passing through the power cable hole is connected among the plurality of power terminal blocks. One power supply terminal block is connected to the other power supply terminal block with a connection cable to provide a lighting device.

  According to the present invention, as an eighteenth means for solving the above-described problem, in any one of the first to seventeenth solving means, the installation density of the LED elements in each LED module alone is in the longitudinal direction of the LED substrate. It is an object of the present invention to provide an illumination device characterized in that the installation density at both ends is higher than the installation density of other portions.

  According to the present invention, as a nineteenth means for solving the above-described problems, in any one of the first to eighteenth solving means, the LED module has a gap between a plurality of LED modules alone. An illumination device is provided.

  According to the present invention, as a twentieth means for solving the above-described problem, in any one of the first to nineteenth solving means, each LED module has the same shape, and the plurality of LED modules Provided is an illuminating device characterized in that one of the single LED modules is disposed by turning 180 ° around the central portion in the longitudinal direction of the illuminating device with respect to the other LED module. Is.

  According to the present invention, as described above, each of the plurality of power supply boxes is installed at a position where the distance from the end is shorter than the distance from the center in the longitudinal direction of the lighting device. The moment from the mounting location on the mounting surface such as can be reduced, and the power supply box is arranged near both ends in the longitudinal direction of the lighting device, so that the loads of the plurality of power supply boxes are concentrated in the central portion Therefore, it is possible to prevent the lighting device from being bent.

  According to the present invention, as described above, the heat sink of the LED module has a substantially U-shaped cross section composed of a bottom surface portion and both wall surface portions, and the upper ends of both wall surface portions are directed toward the bottom surface portion side. Therefore, even if a relatively heavy power supply box is mounted, the LED module can be prevented from being deformed such as bending.

  According to the present invention, as described above, since the main body has the stopper that fixes the position of the LED module by engaging with the mounted LED module, it is easy to position the LED module when attaching to the main body. There is an actual advantage that the LED module can be prevented from being displaced and the displacement and deformation of the LED module due to the load of the power supply box can be prevented.

  According to the present invention, as described above, the LED module is composed of a plurality of single LED modules, and a power supply box, a power supply terminal block, and a dimming terminal block are installed for each single LED module. Also, as a long illuminating device having a length of nearly 200 cm or more, there is an advantage that it is possible to easily perform maintenance such as installation work, maintenance, and replacement.

  In this case, according to the present invention, as described above, separately from the power cable hole through which the cable to be connected to the power terminal block is passed, the light for dimming through the cable to be connected to the dimming terminal block is provided. Since the cable hole is also provided, it is possible to shorten the part where the dimming cable is exposed to the dimming terminal block by providing the dimming cable near the dimming terminal block. There is an actual advantage that the influence on other electronic devices due to the generated noise can be suppressed.

  Similarly, according to the present invention, as described above, the installation density of the LED elements in each LED module alone is higher in the installation density at both ends in the longitudinal direction of the LED substrate than in other parts. Of course, both the longitudinal ends of the entire lighting device, in particular, even when a plurality of LED modules are connected, light emission at the connecting portion (the central portion in the longitudinal direction of the entire lighting device) does not decrease. There is an advantage that light can be emitted uniformly and light can be emitted uniformly without making the separation between LED modules simple.

  In addition, according to the present invention, as described above, each LED module unit is set in the same shape. Therefore, only a single LED module unit is prepared, and only one of the LED module units is prepared. The other LED module can be handled simply by turning 180 ° around the center in the longitudinal direction of the illuminating device and combining them. There are real benefits that can be done.

  Furthermore, according to the present invention, as described above, since there is a gap between a plurality of LED modules, there is an actual benefit that can cope with thermal expansion due to the influence of heat associated with light emission.

  In addition, according to the present invention, as described above, the mounting hole through which the fixing tool for mounting the main body on the mounting surface passes is composed of a plurality of sets of mounting holes having a plurality of different intervals such as 1200 mm or 1400 mm. Therefore, there is an advantage that a single main body can cope with various installation locations, and the labor and cost of manufacturing can be reduced.

It is the perspective view seen from the downward direction of the illuminating device of this invention. It is the perspective view seen from the upper direction of the illuminating device of this invention. It is the disassembled perspective view seen from the upper direction of the illuminating device of this invention. It is the disassembled perspective view seen from the downward direction of the illuminating device of this invention. It is the perspective view seen from the downward direction of the LED module single-piece | unit used for the illuminating device of this invention. It is the perspective view seen from the upper direction of the LED module single-piece | unit used for the illuminating device of this invention. It is a disassembled perspective view of the LED module single-piece | unit used for the illuminating device of this invention. It is a bottom view of the state which removed the translucent cover of the LED module used for the illuminating device of this invention. It is sectional drawing of the illuminating device of this invention. It is a partial perspective view of the main body provided with the fixing piece used for this invention. It is a perspective view of the LED module used for the illuminating device of this invention. It is a perspective view of the LED module used for the conventional illuminating device.

  The embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 4 show a lighting device 100 of the present invention. This lighting device 100 is, for example, a commercial facility such as a business office or a store. Many are installed on the ceiling surface and used to irradiate a relatively wide space. As shown in FIGS. 1 to 4, the lighting device 100 is a long straight tube type lighting device 100, and includes a main body 1 that is attached to a mounting surface such as a ceiling surface, and the main body 1. LED module 2 is provided.

  In particular, the lighting device 100 of the present invention is suitable for being implemented as a very long lighting device 100 of approximately 200 cm or more. In this case, in the illustrated embodiment, as shown in FIG. 1, FIG. 3, and FIG. 4, the LED module 2 is composed of a plurality of, specifically, two LED module units 20. For this reason, even if it is the very long illuminating device 100, since it can work by each LED module single-piece | unit 20 units | sets, maintenance work, such as attachment work to the main body 1 of the LED module 2, and maintenance and replacement Can be easily performed. However, unlike the illustrated embodiment, the LED module 2 can be composed of three or more LED module single units 20, but is not limited to a mode using a plurality of LED module single units 20. The entire module 2 can also be composed of a single module.

(1. Body)
As shown in FIG. 9 in particular, the main body 1 includes a recessed groove portion 10 provided in the center and tapered portions 11 formed so as to extend from both end faces in the longitudinal direction of the groove portion 10. It is directly attached to a surface to be attached such as a ceiling surface by an anchor bolt 13 through an attachment hole 12 formed on the top surface. The main body 1 can be formed by, for example, pressing a metal material such as a color steel plate that is relatively light and has high heat dissipation. In addition, as shown in FIG. 9, when the LED module 2 is mounted, a part of the groove 10, specifically, a power box 25 described later mounted on the LED module 2 is also accommodated. The

(1-1 Power supply terminal block and dimming terminal block)
As shown in FIGS. 4 and 10, the main body 1 is provided with a power terminal block 14 and a dimming terminal block 15 in the groove 10. In the illustrated embodiment, there are a plurality of power supply terminal blocks 14 and dimming terminal blocks 15 according to the number of LED modules 20 to be attached, specifically, in the illustrated embodiment, Power terminal blocks 14A and 14B and two dimming terminal blocks 15A and 15B are provided. The plurality of power supply terminal blocks 14 and the dimming terminal blocks 15 are respectively provided at positions corresponding to the individual LED modules 20.

  The power terminal block 14 is a terminal for connecting a power cable such as a flat vinyl sheathed cable (VVF cable) 5 introduced from a ceiling surface or the like as a mounting surface to a power box 25 described later. The dimming terminal block 15 is a terminal for connecting a dimming cable (not shown) to the power supply box 25. The cable is connected from one end to the other electronic device from the other end. Is derived by branching as necessary.

  Specifically, as shown in FIGS. 2 to 4, the power terminal block 14 is introduced into the main body 1 from the power cable hole 16 formed at one central portion of the groove portion 10 of the main body 1 (not shown). The power cable is connected to one end of one power terminal block 14A, and one of the plurality of connection cables (not shown) branched out from the other end of the one power terminal block 14A is one power box described later. At the same time, the other one is connected to one end of the other power supply terminal block 14B, and a cable derived from the other end of the other power supply terminal block 14B is connected to the other power supply box 25 to Configure the circuit.

  On the other hand, as for the dimming terminal block 15, as shown in FIGS. 4 and 10, in addition to the power cable hole 16, each dimming terminal block 15A, 15B has a dimming terminal block in the vicinity thereof. A dimming cable hole 17 for passing a cable to be connected is formed, and a dimming cable (not shown) introduced from a mounted surface such as a ceiling surface is the main body 1 for the first time near the dimming terminal blocks 15A and 15B. It is introduced into the groove portion 10. For this reason, since the part which the cable for light control to 15A of light control terminal blocks 15B has exposed in the groove part 10 can be shortened, it is by the noise of the high frequency light control signal generated from the cable for light control The influence on other electronic devices can be suppressed.

  In this case, as shown in FIGS. 4 and 10, the dimming cable hole 17 is provided on the opposite side of the power supply box 25 among the dimming terminal blocks 15 </ b> A and 15 </ b> B, that is, the length of the lighting device 100. The dimming cable is introduced into the main body 1 so as to be directed to the power supply box 25. Thereby, a smooth and lean connection can be ensured. The dimming terminal block 15 is not necessarily installed when the lighting device 100 is not equipped with a dimming function.

(1-2 Mounting holes)
As shown in FIGS. 3 and 4, the mounting hole 12 formed on the top surface of the groove portion 10 is penetrated by a fixture such as an anchor bolt 13 for mounting the main body 1 on the mounted surface. As shown in FIGS. 3 and 4, the mounting hole 12 includes a plurality of sets of mounting holes 12A and 12B having a plurality of different intervals.

  Specifically, as shown in FIGS. 3 and 4, a set of mounting holes 12A arranged at an interval of 1200 mm and another set of mounting holes 12B arranged at an interval of 1400 mm can be used. . For this reason, it is possible to deal with various installation locations with a single main body 1 without preparing different types of main bodies 1 for each position and interval of mounting bolts installed on the surface to be mounted. Therefore, the installation location is not limited and the manufacturing cost can be reduced. In addition, the space | interval between each attachment hole 12 is not limited to the said value, It can set suitably as needed.

  Further, as shown in FIGS. 3 and 4, the attachment hole 12 is formed at a position that does not overlap with the power supply box 25 accommodated in the groove portion 10 of the main body 1 when the LED module 2 is attached. Specifically, as will be described later, the power supply box 25 mounted on the LED module 2 is disposed on both ends of the lighting device 100 in the present invention. And as shown in FIG. 4, it is provided in the center side in the longitudinal direction rather than these power supply boxes 25. Thereby, compared with the case where the mounting hole 12 is provided at both ends of the lighting device 100 and the power supply box 25 is disposed at the center, the distance from the mounting hole 12 to the power supply box 25 is shortened, and the LED module 2 is mounted. Further, the moment applied to the lighting device 100 due to the weight of the power supply box 25 can be reduced, and the bending of the lighting device 100 can be prevented.

(1-3 Stopper)
The main body 1 has a stopper (not shown) that engages with the mounted LED module 2 to fix the position of the LED module 2. Accordingly, the LED module 2 can be easily positioned when attached to the main body 1, the positional displacement of the LED module 2 can be prevented, and further, the LED module 2 due to the load of the power supply box 25 can be prevented. Displacement and deformation can be prevented. Specifically, a frame that is in close contact with the outer periphery of the LED module can be used as the stopper.

(1-4 Fixed piece)
Further, as shown in FIGS. 2 and 3, the main body 1 has a fixing piece 18 that is formed by cutting out a part of the inner wall surface of the groove portion 10 of the main body 1 and is bent at the time of cable wiring to fix the cable. The fixing pieces 18 are provided on the inner wall surfaces on both sides of the groove portion 10 of the main body 1. By providing the fixing pieces 18 on both sides, it can be used in any direction without considering the direction of the main body 1 and is fixed only to one side particularly when the main body 1 is molded. This is because, compared with the case where the pieces 18 are provided, the mold can be easily removed and manufacturing defects can be reduced.

(2. LED module)
On the other hand, the LED module 2 is formed in a long shape corresponding to the groove portion 10 of the main body 1 as shown in FIGS. 1, 3, and 5. The lighting device 100 is configured by attaching each LED module single unit 20 to a predetermined portion of the elongated main body 1.

(2-1 LED module alone)
As shown in FIGS. 5 to 9, each LED module single unit 20 includes a heat sink 21, an LED board 22 mounted on the heat sink 21, and a plurality of LED elements 23 mounted on the LED board 22. The LED board 22 and the LED element 23 are provided with a translucent cover 24 and a power supply box 25 for supplying electricity to the lighting device 100.

  In this case, in the illustrated embodiment, the two LED module single units 20 have the same shape, and the two LED module single units 20 are attached to the main body 1 when mounted. Among them, one LED module single unit 20 is arranged to be rotated 180 ° with respect to the other LED module single unit 20 around the central portion in the longitudinal direction of the lighting device 100. More specifically, as will be described later, as shown in FIGS. 3 and 4, the end of the plurality of LED modules 20 that are opposite to the side on which the power supply box 25 is mounted is connected to the lighting device 100. The power supply box 25 mounted on each LED module single unit 20 is attached to the main body 1 so as to be positioned at both ends in the longitudinal direction of the lighting device 100. That is, as the LED module single unit 20, it is sufficient to manufacture only the single-shaped LED module single unit 20 and simply combine them, so that the manufacturing cost of the LED module single unit 20 can be reduced.

  In addition, as shown in FIG. 1, it is desirable that the plurality of LED module single units 20 be installed with a gap portion 6 provided between the plurality of LED module single units 20. Thereby, it can respond also to the thermal expansion by the influence of the heat accompanying light emission.

(2-2-2 Power supply box)
Further, as shown in FIGS. 2 to 7 and 9, the power supply box 25 is installed for each LED module unit 20, and the back side of the LED substrate 22, that is, the LED element 23 is mounted on each LED module unit 20. It is installed on the opposite side of the installed surface (floor side when installed on the ceiling). Specifically, as shown in FIGS. 2 to 7 and 9, the power supply box 25 is mounted on the surface of the heat sink 21 opposite to the surface on which the LED substrate 22 is mounted. This is because the power supply box 25 is accommodated in the groove 10 of the main body 1 when the LED module single unit 20 is mounted on the main body 1.

  In this case, in the present invention, as shown in FIGS. 3, 4, and 11, the power supply box 25 is located at a position where the distance from the end is shorter than the distance from the center in the longitudinal direction of the lighting device 100. Is installed. Specifically, as shown in FIGS. 3 to 7, the power supply box 25 is attached to a position about 1/3 from one end of the LED module unit 20, and as described above, the LED module unit 20. As shown in FIGS. 3, 4, and 11, the power supply box 25 is disposed on both ends in the longitudinal direction of the lighting device 100 and attached to the main body 1. That is, as shown in FIGS. 3, 4, and 11, each LED module unit 20 is disposed in the groove 10 at the positions on both ends of the power supply box 25 with respect to the mounting holes 12 of the main body 1. Attach to.

  As a result, the distance from the mounting hole 12 to the power supply box 25 is shortened, and the moment from the mounting position on the surface to be mounted such as the ceiling surface, that is, the weight of the power supply box 25 when the LED module 2 is mounted. The moment applied to 100 can be reduced, and the power supply box 25 is disposed near both ends in the longitudinal direction of the lighting device 100, so that the load of the power supply box 25 is distributed without being concentrated in the central portion. Therefore, the lighting device 100 can be prevented from bending. At the same time, the lighting device 100 can be prevented from bending.

  As a result, the power supply terminal block 14 and the dimming terminal block 15 installed in the main body 1 are disposed closer to the central portion in the longitudinal direction of the lighting device 100 than the power supply box 25 as shown in FIG. It is arranged between two power supply boxes 25 mounted on the LED module single unit 20. In this case, since the power terminal block 14 and the dimming terminal block 15 that are lighter than the power supply box 25 are located on the center side in the longitudinal direction of the lighting device 100, a large moment is generated even if the distance from the mounting hole 12 is long. It is difficult to work and the bending of the lighting device 100 can be prevented.

  Further, as shown in FIG. 9, the power supply box 25 is arranged so as to be biased from the central portion of the heat radiating plate 21 toward the one wall surface portion 21 </ b> B so as to form the cable installation portion 19 in the groove 10 of the main body 1. ing. Thereby, even if the power supply box 25 is disposed in the groove portion 10 of the main body 1, the wiring is not hindered.

(2-3 Heat sink)
The heat radiating plate 21 has a function of radiating heat generated from the LED substrate 22, and has a substantially U-shaped cross section including a bottom surface portion 21A and both wall surface portions 21B as shown in FIG. Further, in the present invention, as shown in FIG. 9, the heat radiating plate 21 has a folded portion 21C formed by folding the upper ends of both wall surface portions 21B toward the bottom surface portion 21A. The folded portion 21C improves the strength of the heat sink 21. In particular, even when the relatively heavy power supply box 25 is mounted, it is possible to prevent the LED module 2 from being deformed such as bending. In addition, this heat sink 21 can be shape | molded by extrusion molding or bending forming aluminum.

(2.-4 LED substrate and LED element)
The LED substrate 22 is made of a glass composite substrate (CEM-3), and the LED element 23 is mounted on one surface. As shown in FIG. 7, the LED substrate 22 is preferably attached to the heat radiating plate 21 through an insulating sheet 26 in order to increase the heat radiation efficiency for radiating the heat accompanying light emission. However, it is sufficient if the insulating sheet 26 is installed as necessary, and it is not always necessary to provide it. In addition, as LED element 23, well-known various LED can be used. In the illustrated embodiment, a high-luminance LED element that emits white light for illumination is used.

  In the illustrated embodiment, the LED substrate 22 is formed by combining two LED substrate units 22A and 22B for each LED module unit 20 as shown in FIG. This is because the manufacture of the substrate is easy. More specifically, as shown in FIG. 8, the LED board 22 is composed of a first LED board single body 22A having a rectangular shape and a second LED board single body 22B, and the first LED board single body. 22A and the 2nd LED board single-piece | unit 22B are arrange | positioned so that both end surfaces may be opposed so that it may arrange | position continuously in a longitudinal direction. However, it is not always necessary to use a plurality of single LED substrates 22A and 22B, and a single LED substrate 22 can be used for each LED module.

  In this case, the first LED substrate unit 22A and the second LED substrate unit 22B have the same shape, as shown in FIG. 8, in the same manner as the LED module unit 20, and are turned 180 °. Are arranged symmetrically to constitute the LED substrate 24. In this way, by using a single LED substrate having the same shape, it is sufficient to prepare only a single shape LED substrate and simply combine them, thereby reducing the manufacturing costs of the LED substrates 22A and 22B. Can be reduced.

  In this case, in the present invention, as shown particularly in FIG. 8, the installation density of the LED elements 23 in each LED module single unit 20 is the installation density at both ends in the longitudinal direction of the LED substrate 22 (starting end and terminating end in the longitudinal direction). Is formed higher than the installation density of other portions. Specifically, as shown in FIG. 8, when a plurality of (two) LED substrate single units 22A and 22B are used, the LED element 23 (specifically, the end) on one end side in the longitudinal direction is used. The distance between the LED elements 23) from the second portion to the second row is set to be smaller than the distance between the other LED elements 23, and the LED substrate single units 22A and 22B are connected to the end portion of the LED element 23 having the higher density. By arranging and installing the LED module unit 20 in the LED module unit 20, the installation density of the LED elements 23 in each LED module unit unit 20 can be increased at both ends.

  Thereby, not only the both ends of the longitudinal direction in the whole illuminating device 100 but the light intensity of the connection part (center part in the longitudinal direction in the illuminating device 100 whole) especially even if it connects several LED module single-piece | unit 20. Reduction can be suppressed, and light can be continuously emitted to such an extent that the separation between the LED modules alone is not conscious, thereby ensuring linear light emission.

  In the illustrated embodiment, the LED module 2, and thus the LED substrate 22 loaded in the LED module 2, is formed in a flat plate shape as shown in FIG. 9, but considering the light diffusion efficiency, The LED module 2 can be formed in an inverted V shape, and the LED substrate 22 can be arranged in an inverted V shape on each inclined surface, or the flexible LED substrate 22 can be bent and arranged in an inverted V shape. .

  The LED module 14 also includes a reflection sheet 27 that is provided along the LED substrate 22 and reflects light emitted from the LED elements 18 in a direction to be irradiated, as shown in FIGS. 7 to 9. For this reason, it can concentrate on the front side (floor surface side in the case of installing in a ceiling surface) which needs light irradiation, can irradiate light, and can improve the irradiation efficiency in the illuminating device 100 whole. As the reflection sheet 27, specifically, a resin sheet formed from foamed polyethylene terephthalate can be used. In addition to the reflection sheet 27, for example, the irradiation efficiency can be improved by applying a highly reflective resin to the mounting surface of the LED substrate 22.

(2.-5 Translucent cover)
Further, as shown in FIG. 9, the translucent cover 24 is formed on the tapered portion 12 of the main body 1 in a gentle tapered surface following the drawing, and exhibits excellent design as the lighting device 100. As shown in FIG. 9, the translucent cover 24 is assembled by being slid from the terminal portion in the longitudinal direction of the LED module single body 20, and thus fitted with the bent portion 21 </ b> B, so that there is no possibility of dropping. .

(3. Mounting the LED module to the main unit)
In addition, there is no limitation in particular about mounting | wearing of the LED module 2 to the main body 1, Although an appropriate means can be used, In embodiment shown, the spring provided in the main body 1 shown in FIG.4 and FIG.10 3 and a spring receiver 4 provided in the LED module 2 shown in FIG. 6 and engaged with the spring 3 can be used. In this case, in the illustrated embodiment, since the two LED module single units 20 are used, the spring 3 and the spring receiver 4 are provided for each LED module single unit 20 as shown in FIGS. 4 and 6. A total of four places are provided in two places at both ends, the entire lighting device 100.

  Specifically, as shown in FIG. 10, the spring 3 includes a plurality of coil spring portions 31 arranged to face each other, and a frame portion 32 that extends from the coil spring portion 31 and is formed into a frame shape. A spring 3 can be used. On the other hand, the spring receiver 4 provided in the LED module 2 is engaged with the spring 3 by the restoring force of the spring 3 as shown in FIG. Thereby, the LED module 2 is detachably attached to the main body 1.

  In this case, unlike the case where the spring 3 is provided on the LED module 2 side by providing the spring 3 on the main body 1 side, the spring 3 is deformed against the urging force, and the spring 3 is simultaneously gripped and the LED module. The LED module 2 can be easily mounted on the main body 12 without the need to pull up each of them 2 and without a troublesome force work.

  The present invention is widely applied to, for example, a straight tube-type long illuminating device 100 and other illuminating devices installed on a ceiling surface of a relatively large facility such as a commercial facility such as an office or a store. Can do.

DESCRIPTION OF SYMBOLS 100 Illuminating device 1 Main body 10 Groove part 11 Tapered part 12 Mounting hole 13 Anchor bolt 14 Power supply terminal block 15 Light control terminal block 16 Power cable hole 17 Light control cable hole 18 Fixed piece 19 Cable installation part 2 LED module 20 LED module single-piece 21 Radiation plate 21A Bottom surface portion of heat radiation plate 21B Wall surface portion of heat radiation plate 21C Folding portion of heat radiation plate 22 LED substrate 22A, 22B LED substrate alone 23 LED element 24 Translucent cover 25 Power supply box 26 Insulation sheet 27 Reflective sheet 3 Spring 31 Coil spring Part 32 Frame part 4 Spring support 5 Flat vinyl armored cable 6 Air gap

  The present invention mainly relates to an improvement of a straight tube type lighting device mainly installed on a ceiling surface of a relatively large facility such as a commercial facility such as a business office or a store, and in particular, a long length having a plurality of LED modules. Even if it is a shape-like illuminating device, it is related to preventing bending and installing simply and appropriately.

  In recent years, LED lamps with built-in power supplies that use LED elements with excellent power savings as light sources have become widespread due to increasing environmental awareness. In particular, recently, a straight tube type LED lighting device having a long LED module has been developed and introduced into the market as an alternative product of a relatively long straight tube fluorescent lamp.

  Such a straight tube type LED lighting device generally includes a main body (chassis) attached to a surface to be attached such as a ceiling surface and an LED module attached to the main body, and a power supply box incorporating electronic components is provided. It is installed. In this case, since the lighting device is usually mounted on a mounting surface such as a ceiling surface in the vicinity of both ends in the longitudinal direction of the power supply box, the mounting location is avoided and the lighting device is focused on the overall balance. (See, for example, Patent Document 1).

  However, the power supply box with built-in electronic components is relatively heavy among electronic devices mounted on the lighting device. Thus, when installed near the center in the longitudinal direction, As a result of the longer distance from the mounting location and the greater moment, the lighting device may be bent near the center. In particular, in a long illuminating device having a length of nearly 200 cm or more, the tendency is further strengthened, and in particular, when a plurality of power supply boxes 25 are installed as shown in FIG. If the box 25 is also arranged closer to the center, the load concentrates in the center portion, so that in some cases, the mounting state becomes unstable, which may cause deformation of the lighting device. In this case, particularly, as shown in FIG. 12, when the power supply box 25 is installed on the LED module 2 side, the LED module 2 itself installed in a form suspended from the main body 1 may be further deformed. There is also a need to consider this point.

  Moreover, in such a long illuminating device, the position and interval of the mounting bolts differ depending on the surface to be mounted, and in order to cope with this, manufacturing different types of lighting measures, There was a problem that labor and cost were required for manufacturing.

  In addition, in the long LED lighting device, the length of the cable to be wired is relatively long. In particular, in the lighting device having a dimming circuit, the length of the dimming cable is long. When the length is long, a high-frequency dimming signal may cause noise, and thus it is necessary to avoid interference with other electronic components as much as possible.

  Furthermore, in such a long LED lighting device, it can be said that it is desirable to configure a plurality of LED modules alone in consideration of maintenance work such as mounting and assembly workability, maintenance, and replacement. In this case, the interval between the LED elements in each single LED module is different from the interval between the LED elements between the adjacent LED modules when the plurality of LED modules are continuously arranged. Therefore, there is a problem that continuous and uniform light emission cannot be secured between the LED modules alone, and the LED illumination device cannot irradiate light uniformly. At the same time, when a plurality of LED modules are arranged, it is necessary to consider mutual interference due to thermal expansion, and when different types of LED modules are prepared, there is a problem that the labor and cost of manufacturing increase.

JP 2013-89579 A

  In view of the above problems, the problem to be solved by the present invention is to prevent the bending even in the case of a long lighting device having a plurality of LED modules, and to install it appropriately and simply. At the same time, in particular, it is possible to eliminate problems such as manufacturing effort and cost increase, generation of noise, influence of thermal expansion, etc. when a plurality of LED modules are combined to form a long LED module. It is in providing the illuminating device which can be performed.

As a first means for solving the above problems, the present invention is a lighting device including a main body attached to a surface to be attached and an LED module attached to the main body. The fixture for attaching to a to-be-attached surface has the attachment hole which penetrates, and an LED module consists of a plurality of LED module single-piece | units, and each of these LED module single-piece | units, a power supply box which supplies electricity to an illuminating device, and a power supply The power supply box installed for each LED module alone has an LED board on which a plurality of LED elements that emit light by electricity supplied from the box are mounted. It is installed at a position where the distance from the part is shorter and located at both ends in the longitudinal direction of the lighting device than the mounting hole of the main body. A lighting device is provided.

  Further, the present invention provides a second means for solving the above-mentioned problems. In the first solving means, the main body has a power terminal block, and the power terminal block is installed for each LED module alone. An illumination device is provided that is arranged closer to the center side in the longitudinal direction of the illumination device than the power supply box.

  According to the present invention, as a third means for solving the above-described problems, in the first or second solving means, the main body also has a dimming terminal block. The present invention provides an illumination device characterized in that the illumination device is disposed closer to a central portion in the longitudinal direction of the illumination device than a power supply box installed for each LED module.

  According to the present invention, as a fourth means for solving the above-described problem, in the above-described second or fourth solving means, the dimming terminal block and the power terminal block installed in the main body are each LED modules. Provided is a lighting device characterized in that a plurality of units are installed at positions corresponding to each unit.

  According to the present invention, as a fifth means for solving the above-described problems, in any one of the second to fourth solving means, the dimming terminal block and the power terminal block installed in the main body are each LED modules. The present invention provides an illumination device that is arranged between a plurality of power supply boxes installed for each unit.

  According to the present invention, as a sixth means for solving the above-described problem, in any one of the first to fifth solving means, the power supply box is installed on the back side of the LED substrate. An illumination device is provided.

  According to the present invention, as a seventh means for solving the above-described problem, in any one of the first to sixth solving means, the main body engages with the mounted LED module to position the LED module. An illumination device having a stopper for fixing is provided.

According to the present invention, as an eighth means for solving the above-described problem, in any one of the first to seventh solving means , the attachment hole is composed of a plurality of sets of attachment holes having a plurality of different intervals. An illumination device is provided.

  According to the present invention, as a ninth means for solving the above-described problem, in the eighth solving means, the plurality of different intervals between the plurality of sets of mounting holes are 1200 mm and 1400 mm. Is to provide.

  According to the present invention, as a tenth means for solving the above-described problem, in any of the eighth or ninth solving means, the plurality of sets of mounting holes are formed at positions that do not overlap with the power supply box. An illumination device characterized by the above is provided.

  According to the present invention, as an eleventh means for solving the above problem, in any one of the first to tenth solving means, the LED module has a heat sink to which the LED substrate is mounted, and the heat sink Has a substantially U-shaped cross section composed of a bottom surface portion and both wall surface portions, and has a folded portion formed by folding the upper ends of both wall surface portions toward the bottom surface portion side. A device is provided.

  The present invention provides, as a twelfth means for solving the above-mentioned problem, an illuminating device according to the eleventh solution means, wherein the LED substrate is mounted on a heat sink via an insulating sheet. It is to provide.

  According to the present invention, as a thirteenth means for solving the above problem, in any one of the eleventh and twelfth solving means, the power supply box is formed from the central portion of the heat sink so as to form a cable installation portion. Provided is a lighting device characterized in that the lighting device is biased toward one wall surface side.

  According to the present invention, as a fourteenth means for solving the above problems, in any one of the first to thirteenth solving means, the main body is formed by cutting out a part of the inner wall surface of the main body. It has a fixing piece which is bent at the time of wiring and fixes the cable, and the fixing piece is provided on the inner wall surface on both sides of the main body.

  According to the present invention, as a fifteenth means for solving the above-described problem, in any one of the third to fourteenth solving means, the main body is connected to the power terminal block among the cables introduced from the attached surface. In addition to the power supply cable hole through which the cable to be connected passes, there is also provided a lighting device characterized by having a dimming cable hole through which the cable to be connected to the dimming terminal block is passed.

  According to the present invention, as a sixteenth means for solving the above-described problem, in the fifteenth solving means, the dimming cable hole is provided on a side opposite to the power supply box on both sides of the dimming terminal block. An illumination device is provided, wherein the light control cable is formed and introduced into the main body so as to face the power supply box.

  According to the present invention, as a seventeenth means for solving the above problem, in any one of the fourth to sixteenth solving means, a cable passing through the power cable hole is connected among the plurality of power terminal blocks. One power supply terminal block is connected to the other power supply terminal block with a connection cable to provide a lighting device.

  According to the present invention, as an eighteenth means for solving the above-described problem, in any one of the first to seventeenth solving means, the installation density of the LED elements in each LED module alone is in the longitudinal direction of the LED substrate. It is an object of the present invention to provide an illumination device characterized in that the installation density at both ends is higher than the installation density of other portions.

  According to the present invention, as a nineteenth means for solving the above-described problems, in any one of the first to eighteenth solving means, the LED module has a gap between a plurality of LED modules alone. An illumination device is provided.

  According to the present invention, as a twentieth means for solving the above-described problem, in any one of the first to nineteenth solving means, each LED module has the same shape, and the plurality of LED modules Provided is an illuminating device characterized in that one of the single LED modules is disposed by turning 180 ° around the central portion in the longitudinal direction of the illuminating device with respect to the other LED module. Is.

According to the present invention, as described above, each of the plurality of power supply boxes is installed at a position where the distance from the end portion is shorter than the distance from the center portion in the longitudinal direction of the lighting device and the attachment of the main body Since it is arranged so as to be located at both ends in the longitudinal direction of the lighting device rather than the hole, the distance from the mounting hole to the power supply box is shortened, and the moment from the mounting position on the mounted surface such as the ceiling surface, that is, When the LED module is installed, the moment applied to the lighting device can be reduced due to the weight of the power supply box, the moment from the mounting location on the mounting surface such as the ceiling surface can be reduced , and the power supply Since the box is arranged near both ends in the longitudinal direction of the lighting device, the load of multiple power supply boxes can be distributed without being concentrated in the center. Therefore, there is a practical benefits which can prevent bending of the lighting device.

  According to the present invention, as described above, the heat sink of the LED module has a substantially U-shaped cross section composed of a bottom surface portion and both wall surface portions, and the upper ends of both wall surface portions are directed toward the bottom surface portion side. Therefore, even if a relatively heavy power supply box is mounted, the LED module can be prevented from being deformed such as bending.

  According to the present invention, as described above, since the main body has the stopper that fixes the position of the LED module by engaging with the mounted LED module, it is easy to position the LED module when attaching to the main body. There is an actual advantage that the LED module can be prevented from being displaced and the displacement and deformation of the LED module due to the load of the power supply box can be prevented.

  According to the present invention, as described above, the LED module is composed of a plurality of single LED modules, and a power supply box, a power supply terminal block, and a dimming terminal block are installed for each single LED module. Also, as a long illuminating device having a length of nearly 200 cm or more, there is an advantage that it is possible to easily perform maintenance such as installation work, maintenance, and replacement.

  In this case, according to the present invention, as described above, separately from the power cable hole through which the cable to be connected to the power terminal block is passed, the light for dimming through the cable to be connected to the dimming terminal block is provided. Since the cable hole is also provided, it is possible to shorten the part where the dimming cable is exposed to the dimming terminal block by providing the dimming cable near the dimming terminal block. There is an actual advantage that the influence on other electronic devices due to the generated noise can be suppressed.

  Similarly, according to the present invention, as described above, the installation density of the LED elements in each LED module alone is higher in the installation density at both ends in the longitudinal direction of the LED substrate than in other parts. Of course, both the longitudinal ends of the entire lighting device, in particular, even when a plurality of LED modules are connected, light emission at the connecting portion (the central portion in the longitudinal direction of the entire lighting device) does not decrease. There is an advantage that light can be emitted uniformly and light can be emitted uniformly without making the separation between LED modules simple.

  In addition, according to the present invention, as described above, each LED module unit is set in the same shape. Therefore, only a single LED module unit is prepared, and only one of the LED module units is prepared. The other LED module can be handled simply by turning 180 ° around the center in the longitudinal direction of the illuminating device and combining them. There are real benefits that can be done.

  Furthermore, according to the present invention, as described above, since there is a gap between a plurality of LED modules, there is an actual benefit that can cope with thermal expansion due to the influence of heat associated with light emission.

  In addition, according to the present invention, as described above, the mounting hole through which the fixing tool for mounting the main body on the mounting surface passes is composed of a plurality of sets of mounting holes having a plurality of different intervals such as 1200 mm or 1400 mm. Therefore, there is an advantage that a single main body can cope with various installation locations, and the labor and cost of manufacturing can be reduced.

It is the perspective view seen from the downward direction of the illuminating device of this invention. It is the perspective view seen from the upper direction of the illuminating device of this invention. It is the disassembled perspective view seen from the upper direction of the illuminating device of this invention. It is the disassembled perspective view seen from the downward direction of the illuminating device of this invention. It is the perspective view seen from the downward direction of the LED module single-piece | unit used for the illuminating device of this invention. It is the perspective view seen from the upper direction of the LED module single-piece | unit used for the illuminating device of this invention. It is a disassembled perspective view of the LED module single-piece | unit used for the illuminating device of this invention. It is a bottom view of the state which removed the translucent cover of the LED module used for the illuminating device of this invention. It is sectional drawing of the illuminating device of this invention. It is a partial perspective view of the main body provided with the fixing piece used for this invention. It is a perspective view of the LED module used for the illuminating device of this invention. It is a perspective view of the LED module used for the conventional illuminating device.

  The embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 4 show a lighting device 100 of the present invention. This lighting device 100 is, for example, a commercial facility such as a business office or a store. Many are installed on the ceiling surface and used to irradiate a relatively wide space. As shown in FIGS. 1 to 4, the lighting device 100 is a long straight tube type lighting device 100, and includes a main body 1 that is attached to a mounting surface such as a ceiling surface, and the main body 1. LED module 2 is provided.

  In particular, the lighting device 100 of the present invention is suitable for being implemented as a very long lighting device 100 of approximately 200 cm or more. In this case, in the illustrated embodiment, as shown in FIG. 1, FIG. 3, and FIG. 4, the LED module 2 is composed of a plurality of, specifically, two LED module units 20. For this reason, even if it is the very long illuminating device 100, since it can work by each LED module single-piece | unit 20 units | sets, maintenance work, such as attachment work to the main body 1 of the LED module 2, and maintenance and replacement Can be easily performed. However, unlike the illustrated embodiment, the LED module 2 can be composed of three or more LED module single units 20, but is not limited to a mode using a plurality of LED module single units 20. The entire module 2 can also be composed of a single module.

(1. Body)
As shown in FIG. 9 in particular, the main body 1 includes a recessed groove portion 10 provided in the center and tapered portions 11 formed so as to extend from both end faces in the longitudinal direction of the groove portion 10. It is directly attached to a surface to be attached such as a ceiling surface by an anchor bolt 13 through an attachment hole 12 formed on the top surface. The main body 1 can be formed by, for example, pressing a metal material such as a color steel plate that is relatively light and has high heat dissipation. In addition, as shown in FIG. 9, when the LED module 2 is mounted, a part of the groove 10, specifically, a power box 25 described later mounted on the LED module 2 is also accommodated. The

(1-1 Power supply terminal block and dimming terminal block)
As shown in FIGS. 4 and 10, the main body 1 is provided with a power terminal block 14 and a dimming terminal block 15 in the groove 10. In the illustrated embodiment, there are a plurality of power supply terminal blocks 14 and dimming terminal blocks 15 according to the number of LED modules 20 to be attached, specifically, in the illustrated embodiment, Power terminal blocks 14A and 14B and two dimming terminal blocks 15A and 15B are provided. The plurality of power supply terminal blocks 14 and the dimming terminal blocks 15 are respectively provided at positions corresponding to the individual LED modules 20.

  The power terminal block 14 is a terminal for connecting a power cable such as a flat vinyl sheathed cable (VVF cable) 5 introduced from a ceiling surface or the like as a mounting surface to a power box 25 described later. The dimming terminal block 15 is a terminal for connecting a dimming cable (not shown) to the power supply box 25. The cable is connected from one end to the other electronic device from the other end. Is derived by branching as necessary.

  Specifically, as shown in FIGS. 2 to 4, the power terminal block 14 is introduced into the main body 1 from the power cable hole 16 formed at one central portion of the groove portion 10 of the main body 1 (not shown). The power cable is connected to one end of one power terminal block 14A, and one of the plurality of connection cables (not shown) branched out from the other end of the one power terminal block 14A is one power box described later. At the same time, the other one is connected to one end of the other power supply terminal block 14B, and a cable derived from the other end of the other power supply terminal block 14B is connected to the other power supply box 25 to Configure the circuit.

  On the other hand, as for the dimming terminal block 15, as shown in FIGS. 4 and 10, in addition to the power cable hole 16, each dimming terminal block 15A, 15B has a dimming terminal block in the vicinity thereof. A dimming cable hole 17 for passing a cable to be connected is formed, and a dimming cable (not shown) introduced from a mounted surface such as a ceiling surface is the main body 1 for the first time near the dimming terminal blocks 15A and 15B. It is introduced into the groove portion 10. For this reason, since the part which the cable for light control to 15A of light control terminal blocks 15B has exposed in the groove part 10 can be shortened, it is by the noise of the high frequency light control signal generated from the cable for light control The influence on other electronic devices can be suppressed.

  In this case, as shown in FIGS. 4 and 10, the dimming cable hole 17 is provided on the opposite side of the power supply box 25 among the dimming terminal blocks 15 </ b> A and 15 </ b> B, that is, the length of the lighting device 100. The dimming cable is introduced into the main body 1 so as to be directed to the power supply box 25. Thereby, a smooth and lean connection can be ensured. The dimming terminal block 15 is not necessarily installed when the lighting device 100 is not equipped with a dimming function.

(1-2 Mounting holes)
As shown in FIGS. 3 and 4, the mounting hole 12 formed on the top surface of the groove portion 10 is penetrated by a fixture such as an anchor bolt 13 for mounting the main body 1 on the mounted surface. As shown in FIGS. 3 and 4, the mounting hole 12 includes a plurality of sets of mounting holes 12A and 12B having a plurality of different intervals.

  Specifically, as shown in FIGS. 3 and 4, a set of mounting holes 12A arranged at an interval of 1200 mm and another set of mounting holes 12B arranged at an interval of 1400 mm can be used. . For this reason, it is possible to deal with various installation locations with a single main body 1 without preparing different types of main bodies 1 for each position and interval of mounting bolts installed on the surface to be mounted. Therefore, the installation location is not limited and the manufacturing cost can be reduced. In addition, the space | interval between each attachment hole 12 is not limited to the said value, It can set suitably as needed.

  Further, as shown in FIGS. 3 and 4, the attachment hole 12 is formed at a position that does not overlap with the power supply box 25 accommodated in the groove portion 10 of the main body 1 when the LED module 2 is attached. Specifically, as will be described later, the power supply box 25 mounted on the LED module 2 is disposed on both ends of the lighting device 100 in the present invention. And as shown in FIG. 4, it is provided in the center side in the longitudinal direction rather than these power supply boxes 25. Thereby, compared with the case where the mounting hole 12 is provided at both ends of the lighting device 100 and the power supply box 25 is disposed at the center, the distance from the mounting hole 12 to the power supply box 25 is shortened, and the LED module 2 is mounted. Further, the moment applied to the lighting device 100 due to the weight of the power supply box 25 can be reduced, and the bending of the lighting device 100 can be prevented.

(1-3 Stopper)
The main body 1 has a stopper (not shown) that engages with the mounted LED module 2 to fix the position of the LED module 2. Accordingly, the LED module 2 can be easily positioned when attached to the main body 1, the positional displacement of the LED module 2 can be prevented, and further, the LED module 2 due to the load of the power supply box 25 can be prevented. Displacement and deformation can be prevented. Specifically, a frame that is in close contact with the outer periphery of the LED module can be used as the stopper.

(1-4 Fixed piece)
Further, as shown in FIGS. 2 and 3, the main body 1 has a fixing piece 18 that is formed by cutting out a part of the inner wall surface of the groove portion 10 of the main body 1 and is bent at the time of cable wiring to fix the cable. The fixing pieces 18 are provided on the inner wall surfaces on both sides of the groove portion 10 of the main body 1. By providing the fixing pieces 18 on both sides, it can be used in any direction without considering the direction of the main body 1 and is fixed only to one side particularly when the main body 1 is molded. This is because, compared with the case where the pieces 18 are provided, the mold can be easily removed and manufacturing defects can be reduced.

(2. LED module)
On the other hand, the LED module 2 is formed in a long shape corresponding to the groove portion 10 of the main body 1 as shown in FIGS. 1, 3, and 5. The lighting device 100 is configured by attaching each LED module single unit 20 to a predetermined portion of the elongated main body 1.

(2-1 LED module alone)
As shown in FIGS. 5 to 9, each LED module single unit 20 includes a heat sink 21, an LED board 22 mounted on the heat sink 21, and a plurality of LED elements 23 mounted on the LED board 22. The LED board 22 and the LED element 23 are provided with a translucent cover 24 and a power supply box 25 for supplying electricity to the lighting device 100.

  In this case, in the illustrated embodiment, the two LED module single units 20 have the same shape, and the two LED module single units 20 are attached to the main body 1 when mounted. Among them, one LED module single unit 20 is arranged to be rotated 180 ° with respect to the other LED module single unit 20 around the central portion in the longitudinal direction of the lighting device 100. More specifically, as will be described later, as shown in FIGS. 3 and 4, the end of the plurality of LED modules 20 that are opposite to the side on which the power supply box 25 is mounted is connected to the lighting device 100. The power supply box 25 mounted on each LED module single unit 20 is attached to the main body 1 so as to be positioned at both ends in the longitudinal direction of the lighting device 100. That is, as the LED module single unit 20, it is sufficient to manufacture only the single-shaped LED module single unit 20 and simply combine them, so that the manufacturing cost of the LED module single unit 20 can be reduced.

  In addition, as shown in FIG. 1, it is desirable that the plurality of LED module single units 20 be installed with a gap portion 6 provided between the plurality of LED module single units 20. Thereby, it can respond also to the thermal expansion by the influence of the heat accompanying light emission.

(2-2-2 Power supply box)
Further, as shown in FIGS. 2 to 7 and 9, the power supply box 25 is installed for each LED module unit 20, and the back side of the LED substrate 22, that is, the LED element 23 is mounted on each LED module unit 20. It is installed on the opposite side of the installed surface (floor side when installed on the ceiling). Specifically, as shown in FIGS. 2 to 7 and 9, the power supply box 25 is mounted on the surface of the heat sink 21 opposite to the surface on which the LED substrate 22 is mounted. This is because the power supply box 25 is accommodated in the groove 10 of the main body 1 when the LED module single unit 20 is mounted on the main body 1.

  In this case, in the present invention, as shown in FIGS. 3, 4, and 11, the power supply box 25 is located at a position where the distance from the end is shorter than the distance from the center in the longitudinal direction of the lighting device 100. Is installed. Specifically, as shown in FIGS. 3 to 7, the power supply box 25 is attached to a position about 1/3 from one end of the LED module unit 20, and as described above, the LED module unit 20. As shown in FIGS. 3, 4, and 11, the power supply box 25 is disposed on both ends in the longitudinal direction of the lighting device 100 and attached to the main body 1. That is, as shown in FIGS. 3, 4, and 11, each LED module unit 20 is disposed in the groove 10 at the positions on both ends of the power supply box 25 with respect to the mounting holes 12 of the main body 1. Attach to.

  As a result, the distance from the mounting hole 12 to the power supply box 25 is shortened, and the moment from the mounting position on the surface to be mounted such as the ceiling surface, that is, the weight of the power supply box 25 when the LED module 2 is mounted. The moment applied to 100 can be reduced, and the power supply box 25 is disposed near both ends in the longitudinal direction of the lighting device 100, so that the load of the power supply box 25 is distributed without being concentrated in the central portion. Therefore, the lighting device 100 can be prevented from bending. At the same time, the lighting device 100 can be prevented from bending.

  As a result, the power supply terminal block 14 and the dimming terminal block 15 installed in the main body 1 are disposed closer to the central portion in the longitudinal direction of the lighting device 100 than the power supply box 25 as shown in FIG. It is arranged between two power supply boxes 25 mounted on the LED module single unit 20. In this case, since the power terminal block 14 and the dimming terminal block 15 that are lighter than the power supply box 25 are located on the center side in the longitudinal direction of the lighting device 100, a large moment is generated even if the distance from the mounting hole 12 is long. It is difficult to work and the bending of the lighting device 100 can be prevented.

  Further, as shown in FIG. 9, the power supply box 25 is arranged so as to be biased from the central portion of the heat radiating plate 21 toward the one wall surface portion 21 </ b> B so as to form the cable installation portion 19 in the groove 10 of the main body 1. ing. Thereby, even if the power supply box 25 is disposed in the groove portion 10 of the main body 1, the wiring is not hindered.

(2-3 Heat sink)
The heat radiating plate 21 has a function of radiating heat generated from the LED substrate 22, and has a substantially U-shaped cross section including a bottom surface portion 21A and both wall surface portions 21B as shown in FIG. Further, in the present invention, as shown in FIG. 9, the heat radiating plate 21 has a folded portion 21C formed by folding the upper ends of both wall surface portions 21B toward the bottom surface portion 21A. The folded portion 21C improves the strength of the heat sink 21. In particular, even when the relatively heavy power supply box 25 is mounted, it is possible to prevent the LED module 2 from being deformed such as bending. In addition, this heat sink 21 can be shape | molded by extrusion molding or bending forming aluminum.

(2.-4 LED substrate and LED element)
The LED substrate 22 is made of a glass composite substrate (CEM-3), and the LED element 23 is mounted on one surface. As shown in FIG. 7, the LED substrate 22 is preferably attached to the heat radiating plate 21 through an insulating sheet 26 in order to increase the heat radiation efficiency for radiating the heat accompanying light emission. However, it is sufficient if the insulating sheet 26 is installed as necessary, and it is not always necessary to provide it. In addition, as LED element 23, well-known various LED can be used. In the illustrated embodiment, a high-luminance LED element that emits white light for illumination is used.

  In the illustrated embodiment, the LED substrate 22 is formed by combining two LED substrate units 22A and 22B for each LED module unit 20 as shown in FIG. This is because the manufacture of the substrate is easy. More specifically, as shown in FIG. 8, the LED board 22 is composed of a first LED board single body 22A having a rectangular shape and a second LED board single body 22B, and the first LED board single body. 22A and the 2nd LED board single-piece | unit 22B are arrange | positioned so that both end surfaces may be opposed so that it may arrange | position continuously in a longitudinal direction. However, it is not always necessary to use a plurality of single LED substrates 22A and 22B, and a single LED substrate 22 can be used for each LED module.

  In this case, the first LED substrate unit 22A and the second LED substrate unit 22B have the same shape, as shown in FIG. 8, in the same manner as the LED module unit 20, and are turned 180 °. Are arranged symmetrically to constitute the LED substrate 24. In this way, by using a single LED substrate having the same shape, it is sufficient to prepare only a single shape LED substrate and simply combine them, thereby reducing the manufacturing costs of the LED substrates 22A and 22B. Can be reduced.

  In this case, in the present invention, as shown particularly in FIG. 8, the installation density of the LED elements 23 in each LED module single unit 20 is the installation density at both ends in the longitudinal direction of the LED substrate 22 (starting end and terminating end in the longitudinal direction). Is formed higher than the installation density of other portions. Specifically, as shown in FIG. 8, when a plurality of (two) LED substrate single units 22A and 22B are used, the LED element 23 (specifically, the end) on one end side in the longitudinal direction is used. The distance between the LED elements 23) from the second portion to the second row is set to be smaller than the distance between the other LED elements 23, and the LED substrate single units 22A and 22B are connected to the end portion of the LED element 23 having the higher density. By arranging and installing the LED module unit 20 in the LED module unit 20, the installation density of the LED elements 23 in each LED module unit unit 20 can be increased at both ends.

  Thereby, not only the both ends of the longitudinal direction in the whole illuminating device 100 but the light intensity of the connection part (center part in the longitudinal direction in the illuminating device 100 whole) especially even if it connects several LED module single-piece | unit 20. Reduction can be suppressed, and light can be continuously emitted to such an extent that the separation between the LED modules alone is not conscious, thereby ensuring linear light emission.

  In the illustrated embodiment, the LED module 2, and thus the LED substrate 22 loaded in the LED module 2, is formed in a flat plate shape as shown in FIG. 9, but considering the light diffusion efficiency, The LED module 2 can be formed in an inverted V shape, and the LED substrate 22 can be arranged in an inverted V shape on each inclined surface, or the flexible LED substrate 22 can be bent and arranged in an inverted V shape. .

  The LED module 14 also includes a reflection sheet 27 that is provided along the LED substrate 22 and reflects light emitted from the LED elements 18 in a direction to be irradiated, as shown in FIGS. 7 to 9. For this reason, it can concentrate on the front side (floor surface side in the case of installing in a ceiling surface) which needs light irradiation, can irradiate light, and can improve the irradiation efficiency in the illuminating device 100 whole. As the reflection sheet 27, specifically, a resin sheet formed from foamed polyethylene terephthalate can be used. In addition to the reflection sheet 27, for example, the irradiation efficiency can be improved by applying a highly reflective resin to the mounting surface of the LED substrate 22.

(2.-5 Translucent cover)
Further, as shown in FIG. 9, the translucent cover 24 is formed on the tapered portion 12 of the main body 1 in a gentle tapered surface following the drawing, and exhibits excellent design as the lighting device 100. As shown in FIG. 9, the translucent cover 24 is assembled by being slid from the terminal portion in the longitudinal direction of the LED module single body 20, and thus fitted with the bent portion 21 </ b> B, so that there is no possibility of dropping. .

(3. Mounting the LED module to the main unit)
In addition, there is no limitation in particular about mounting | wearing of the LED module 2 to the main body 1, Although an appropriate means can be used, In embodiment shown, the spring provided in the main body 1 shown in FIG.4 and FIG.10 3 and a spring receiver 4 provided in the LED module 2 shown in FIG. 6 and engaged with the spring 3 can be used. In this case, in the illustrated embodiment, since the two LED module single units 20 are used, the spring 3 and the spring receiver 4 are provided for each LED module single unit 20 as shown in FIGS. 4 and 6. A total of four places are provided in two places at both ends, the entire lighting device 100.

  Specifically, as shown in FIG. 10, the spring 3 includes a plurality of coil spring portions 31 arranged to face each other, and a frame portion 32 that extends from the coil spring portion 31 and is formed into a frame shape. A spring 3 can be used. On the other hand, the spring receiver 4 provided in the LED module 2 is engaged with the spring 3 by the restoring force of the spring 3 as shown in FIG. Thereby, the LED module 2 is detachably attached to the main body 1.

  In this case, unlike the case where the spring 3 is provided on the LED module 2 side by providing the spring 3 on the main body 1 side, the spring 3 is deformed against the urging force, and the spring 3 is simultaneously gripped and the LED module. The LED module 2 can be easily mounted on the main body 12 without the need to pull up each of them 2 and without a troublesome force work.

  The present invention is widely applied to, for example, a straight tube-type long illuminating device 100 and other illuminating devices installed on a ceiling surface of a relatively large facility such as a commercial facility such as an office or a store. Can do.

DESCRIPTION OF SYMBOLS 100 Illuminating device 1 Main body 10 Groove part 11 Tapered part 12 Mounting hole 13 Anchor bolt 14 Power supply terminal block 15 Light control terminal block 16 Power cable hole 17 Light control cable hole 18 Fixed piece 19 Cable installation part 2 LED module 20 LED module single-piece 21 Radiation plate 21A Bottom surface portion of heat radiation plate 21B Wall surface portion of heat radiation plate 21C Folding portion of heat radiation plate 22 LED substrate 22A, 22B LED substrate alone 23 LED element 24 Translucent cover 25 Power supply box 26 Insulation sheet 27 Reflective sheet 3 Spring 31 Coil spring Part 32 Frame part 4 Spring support 5 Flat vinyl armored cable 6 Air gap

  The present invention mainly relates to an improvement of a straight tube type lighting device mainly installed on a ceiling surface of a relatively large facility such as a commercial facility such as a business office or a store, and in particular, a long length having a plurality of LED modules. Even if it is a shape-like illuminating device, it is related to preventing bending and installing simply and appropriately.

  In recent years, LED lamps with built-in power supplies that use LED elements with excellent power savings as light sources have become widespread due to increasing environmental awareness. In particular, recently, a straight tube type LED lighting device having a long LED module has been developed and introduced into the market as an alternative product of a relatively long straight tube fluorescent lamp.

  Such a straight tube type LED lighting device generally includes a main body (chassis) attached to a surface to be attached such as a ceiling surface and an LED module attached to the main body, and a power supply box incorporating electronic components is provided. It is installed. In this case, since the lighting device is usually mounted on a mounting surface such as a ceiling surface in the vicinity of both ends in the longitudinal direction of the power supply box, the mounting location is avoided and the lighting device is focused on the overall balance. (See, for example, Patent Document 1).

  However, the power supply box with built-in electronic components is relatively heavy among electronic devices mounted on the lighting device. Thus, when installed near the center in the longitudinal direction, As a result of the longer distance from the mounting location and the greater moment, the lighting device may be bent near the center. In particular, in a long illuminating device having a length of nearly 200 cm or more, the tendency is further strengthened, and in particular, when a plurality of power supply boxes 25 are installed as shown in FIG. If the box 25 is also arranged closer to the center, the load concentrates in the center portion, so that in some cases, the mounting state becomes unstable, which may cause deformation of the lighting device. In this case, particularly, as shown in FIG. 12, when the power supply box 25 is installed on the LED module 2 side, the LED module 2 itself installed in a form suspended from the main body 1 may be further deformed. There is also a need to consider this point.

  Moreover, in such a long illuminating device, the position and interval of the mounting bolts differ depending on the surface to be mounted, and in order to cope with this, manufacturing different types of lighting measures, There was a problem that labor and cost were required for manufacturing.

  In addition, in the long LED lighting device, the length of the cable to be wired is relatively long. In particular, in the lighting device having a dimming circuit, the length of the dimming cable is long. When the length is long, a high-frequency dimming signal may cause noise, and thus it is necessary to avoid interference with other electronic components as much as possible.

  Furthermore, in such a long LED lighting device, it can be said that it is desirable to configure a plurality of LED modules alone in consideration of maintenance work such as mounting and assembly workability, maintenance, and replacement. In this case, the interval between the LED elements in each single LED module is different from the interval between the LED elements between the adjacent LED modules when the plurality of LED modules are continuously arranged. Therefore, there is a problem that continuous and uniform light emission cannot be secured between the LED modules alone, and the LED illumination device cannot irradiate light uniformly. At the same time, when a plurality of LED modules are arranged, it is necessary to consider mutual interference due to thermal expansion, and when different types of LED modules are prepared, there is a problem that the labor and cost of manufacturing increase.

JP 2013-89579 A

  In view of the above problems, the problem to be solved by the present invention is to prevent the bending even in the case of a long lighting device having a plurality of LED modules, and to install it appropriately and simply. At the same time, in particular, it is possible to eliminate problems such as manufacturing effort and cost increase, generation of noise, influence of thermal expansion, etc. when a plurality of LED modules are combined to form a long LED module. It is in providing the illuminating device which can be performed.

As a first means for solving the above problems, the present invention is a long illuminating device including a main body attached to a surface to be attached and an LED module attached to the main body. Has at least one set of mounting holes through which a fixing tool for mounting the main body on the mounting surface passes, and the LED module is composed of a plurality of single LED modules, and each of these single LED modules is electrically connected to the lighting device. And a power supply box installed for each LED module alone in the longitudinal direction of the lighting device. towards the distance from the end than the distance from the central portion is placed in a short position, longitudinal of the illumination device than a pair of mounting holes arranged at a predetermined interval of body There is provided a lighting apparatus characterized by being arranged so as to be positioned on both ends in the direction.

  Further, the present invention provides a second means for solving the above-mentioned problems. In the first solving means, the main body has a power terminal block, and the power terminal block is installed for each LED module alone. An illumination device is provided that is arranged closer to the center side in the longitudinal direction of the illumination device than the power supply box.

  According to the present invention, as a third means for solving the above-described problems, in the first or second solving means, the main body also has a dimming terminal block. The present invention provides an illumination device characterized in that the illumination device is disposed closer to a central portion in the longitudinal direction of the illumination device than a power supply box installed for each LED module.

  According to the present invention, as a fourth means for solving the above-described problem, in the above-described second or fourth solving means, the dimming terminal block and the power terminal block installed in the main body are each LED modules. Provided is a lighting device characterized in that a plurality of units are installed at positions corresponding to each unit.

  According to the present invention, as a fifth means for solving the above-described problems, in any one of the second to fourth solving means, the dimming terminal block and the power terminal block installed in the main body are each LED modules. The present invention provides an illumination device that is arranged between a plurality of power supply boxes installed for each unit.

  According to the present invention, as a sixth means for solving the above-described problem, in any one of the first to fifth solving means, the power supply box is installed on the back side of the LED substrate. An illumination device is provided.

  According to the present invention, as a seventh means for solving the above-described problem, in any one of the first to sixth solving means, the main body engages with the mounted LED module to position the LED module. An illumination device having a stopper for fixing is provided.

  According to the present invention, as an eighth means for solving the above-described problem, in any one of the first to seventh solving means, the attachment hole is composed of a plurality of sets of attachment holes having a plurality of different intervals. An illumination device is provided.

  According to the present invention, as a ninth means for solving the above-described problem, in the eighth solving means, the plurality of different intervals between the plurality of sets of mounting holes are 1200 mm and 1400 mm. Is to provide.

  According to the present invention, as a tenth means for solving the above-described problem, in any of the eighth or ninth solving means, the plurality of sets of mounting holes are formed at positions that do not overlap with the power supply box. An illumination device characterized by the above is provided.

  According to the present invention, as an eleventh means for solving the above problem, in any one of the first to tenth solving means, the LED module has a heat sink to which the LED substrate is mounted, and the heat sink Has a substantially U-shaped cross section composed of a bottom surface portion and both wall surface portions, and has a folded portion formed by folding the upper ends of both wall surface portions toward the bottom surface portion side. A device is provided.

  The present invention provides, as a twelfth means for solving the above-mentioned problem, an illuminating device according to the eleventh solution means, wherein the LED substrate is mounted on a heat sink via an insulating sheet. It is to provide.

  According to the present invention, as a thirteenth means for solving the above problem, in any one of the eleventh and twelfth solving means, the power supply box is formed from the central portion of the heat sink so as to form a cable installation portion. Provided is a lighting device characterized in that the lighting device is biased toward one wall surface side.

  According to the present invention, as a fourteenth means for solving the above problems, in any one of the first to thirteenth solving means, the main body is formed by cutting out a part of the inner wall surface of the main body. It has a fixing piece which is bent at the time of wiring and fixes the cable, and the fixing piece is provided on the inner wall surface on both sides of the main body.

  According to the present invention, as a fifteenth means for solving the above-described problem, in any one of the third to fourteenth solving means, the main body is connected to the power terminal block among the cables introduced from the attached surface. In addition to the power supply cable hole through which the cable to be connected passes, there is also provided a lighting device characterized by having a dimming cable hole through which the cable to be connected to the dimming terminal block is passed.

  According to the present invention, as a sixteenth means for solving the above-described problem, in the fifteenth solving means, the dimming cable hole is provided on a side opposite to the power supply box on both sides of the dimming terminal block. An illumination device is provided, wherein the light control cable is formed and introduced into the main body so as to face the power supply box.

  According to the present invention, as a seventeenth means for solving the above problem, in any one of the fourth to sixteenth solving means, a cable passing through the power cable hole is connected among the plurality of power terminal blocks. One power supply terminal block is connected to the other power supply terminal block with a connection cable to provide a lighting device.

  According to the present invention, as an eighteenth means for solving the above-described problem, in any one of the first to seventeenth solving means, the installation density of the LED elements in each LED module alone is in the longitudinal direction of the LED substrate. It is an object of the present invention to provide an illumination device characterized in that the installation density at both ends is higher than the installation density of other portions.

  According to the present invention, as a nineteenth means for solving the above-described problems, in any one of the first to eighteenth solving means, the LED module has a gap between a plurality of LED modules alone. An illumination device is provided.

  According to the present invention, as a twentieth means for solving the above-described problem, in any one of the first to nineteenth solving means, each LED module has the same shape, and the plurality of LED modules Provided is an illuminating device characterized in that one of the single LED modules is disposed by turning 180 ° around the central portion in the longitudinal direction of the illuminating device with respect to the other LED module. Is.

  According to the present invention, as described above, each of the plurality of power supply boxes is installed at a position where the distance from the end portion is shorter than the distance from the center portion in the longitudinal direction of the lighting device and the attachment of the main body Since it is arranged so as to be located at both ends in the longitudinal direction of the lighting device rather than the hole, the distance from the mounting hole to the power supply box is shortened, and the moment from the mounting position on the mounted surface such as the ceiling surface, that is, When the LED module is installed, the moment applied to the lighting device can be reduced due to the weight of the power supply box, the moment from the mounting location on the mounting surface such as the ceiling surface can be reduced, and the power supply Since the box is arranged near both ends in the longitudinal direction of the lighting device, the load of multiple power supply boxes can be distributed without being concentrated in the center. Therefore, there is a practical benefits which can prevent bending of the lighting device.

  According to the present invention, as described above, the heat sink of the LED module has a substantially U-shaped cross section composed of a bottom surface portion and both wall surface portions, and the upper ends of both wall surface portions are directed toward the bottom surface portion side. Therefore, even if a relatively heavy power supply box is mounted, the LED module can be prevented from being deformed such as bending.

  According to the present invention, as described above, since the main body has the stopper that fixes the position of the LED module by engaging with the mounted LED module, it is easy to position the LED module when attaching to the main body. There is an actual advantage that the LED module can be prevented from being displaced and the displacement and deformation of the LED module due to the load of the power supply box can be prevented.

  According to the present invention, as described above, the LED module is composed of a plurality of single LED modules, and a power supply box, a power supply terminal block, and a dimming terminal block are installed for each single LED module. Also, as a long illuminating device having a length of nearly 200 cm or more, there is an advantage that it is possible to easily perform maintenance such as installation work, maintenance, and replacement.

  In this case, according to the present invention, as described above, separately from the power cable hole through which the cable to be connected to the power terminal block is passed, the light for dimming through the cable to be connected to the dimming terminal block is provided. Since the cable hole is also provided, it is possible to shorten the part where the dimming cable is exposed to the dimming terminal block by providing the dimming cable near the dimming terminal block. There is an actual advantage that the influence on other electronic devices due to the generated noise can be suppressed.

  Similarly, according to the present invention, as described above, the installation density of the LED elements in each LED module alone is higher in the installation density at both ends in the longitudinal direction of the LED substrate than in other parts. Of course, both the longitudinal ends of the entire lighting device, in particular, even when a plurality of LED modules are connected, light emission at the connecting portion (the central portion in the longitudinal direction of the entire lighting device) does not decrease. There is an advantage that light can be emitted uniformly and light can be emitted uniformly without making the separation between LED modules simple.

  In addition, according to the present invention, as described above, each LED module unit is set in the same shape. Therefore, only a single LED module unit is prepared, and only one of the LED module units is prepared. The other LED module can be handled simply by turning 180 ° around the center in the longitudinal direction of the illuminating device and combining them. There are real benefits that can be done.

  Furthermore, according to the present invention, as described above, since there is a gap between a plurality of LED modules, there is an actual benefit that can cope with thermal expansion due to the influence of heat associated with light emission.

  In addition, according to the present invention, as described above, the mounting hole through which the fixing tool for mounting the main body on the mounting surface passes is composed of a plurality of sets of mounting holes having a plurality of different intervals such as 1200 mm or 1400 mm. Therefore, there is an advantage that a single main body can cope with various installation locations, and the labor and cost of manufacturing can be reduced.

It is the perspective view seen from the downward direction of the illuminating device of this invention. It is the perspective view seen from the upper direction of the illuminating device of this invention. It is the disassembled perspective view seen from the upper direction of the illuminating device of this invention. It is the disassembled perspective view seen from the downward direction of the illuminating device of this invention. It is the perspective view seen from the downward direction of the LED module single-piece | unit used for the illuminating device of this invention. It is the perspective view seen from the upper direction of the LED module single-piece | unit used for the illuminating device of this invention. It is a disassembled perspective view of the LED module single-piece | unit used for the illuminating device of this invention. It is a bottom view of the state which removed the translucent cover of the LED module used for the illuminating device of this invention. It is sectional drawing of the illuminating device of this invention. It is a partial perspective view of the main body provided with the fixing piece used for this invention. It is a perspective view of the LED module used for the illuminating device of this invention. It is a perspective view of the LED module used for the conventional illuminating device.

  The embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 4 show a lighting device 100 of the present invention. This lighting device 100 is, for example, a commercial facility such as a business office or a store. Many are installed on the ceiling surface and used to irradiate a relatively wide space. As shown in FIGS. 1 to 4, the lighting device 100 is a long straight tube type lighting device 100, and includes a main body 1 that is attached to a mounting surface such as a ceiling surface, and the main body 1. LED module 2 is provided.

  In particular, the lighting device 100 of the present invention is suitable for being implemented as a very long lighting device 100 of approximately 200 cm or more. In this case, in the illustrated embodiment, as shown in FIG. 1, FIG. 3, and FIG. 4, the LED module 2 is composed of a plurality of, specifically, two LED module units 20. For this reason, even if it is the very long illuminating device 100, since it can work by each LED module single-piece | unit 20 units | sets, maintenance work, such as attachment work to the main body 1 of the LED module 2, and maintenance and replacement Can be easily performed. However, unlike the illustrated embodiment, the LED module 2 can be composed of three or more LED module single units 20, but is not limited to a mode using a plurality of LED module single units 20. The entire module 2 can also be composed of a single module.

(1. Body)
As shown in FIG. 9 in particular, the main body 1 includes a recessed groove portion 10 provided in the center and tapered portions 11 formed so as to extend from both end faces in the longitudinal direction of the groove portion 10. It is directly attached to a surface to be attached such as a ceiling surface by an anchor bolt 13 through an attachment hole 12 formed on the top surface. The main body 1 can be formed by, for example, pressing a metal material such as a color steel plate that is relatively light and has high heat dissipation. In addition, as shown in FIG. 9, when the LED module 2 is mounted, a part of the groove 10, specifically, a power box 25 described later mounted on the LED module 2 is also accommodated. The

(1-1 Power supply terminal block and dimming terminal block)
As shown in FIGS. 4 and 10, the main body 1 is provided with a power terminal block 14 and a dimming terminal block 15 in the groove 10. In the illustrated embodiment, there are a plurality of power supply terminal blocks 14 and dimming terminal blocks 15 according to the number of LED modules 20 to be attached, specifically, in the illustrated embodiment, Power terminal blocks 14A and 14B and two dimming terminal blocks 15A and 15B are provided. The plurality of power supply terminal blocks 14 and the dimming terminal blocks 15 are respectively provided at positions corresponding to the individual LED modules 20.

  The power terminal block 14 is a terminal for connecting a power cable such as a flat vinyl sheathed cable (VVF cable) 5 introduced from a ceiling surface or the like as a mounting surface to a power box 25 described later. The dimming terminal block 15 is a terminal for connecting a dimming cable (not shown) to the power supply box 25. The cable is connected from one end to the other electronic device from the other end. Is derived by branching as necessary.

  Specifically, as shown in FIGS. 2 to 4, the power terminal block 14 is introduced into the main body 1 from the power cable hole 16 formed at one central portion of the groove portion 10 of the main body 1 (not shown). The power cable is connected to one end of one power terminal block 14A, and one of the plurality of connection cables (not shown) branched out from the other end of the one power terminal block 14A is one power box described later. At the same time, the other one is connected to one end of the other power supply terminal block 14B, and a cable derived from the other end of the other power supply terminal block 14B is connected to the other power supply box 25 to Configure the circuit.

  On the other hand, as for the dimming terminal block 15, as shown in FIGS. 4 and 10, in addition to the power cable hole 16, each dimming terminal block 15A, 15B has a dimming terminal block in the vicinity thereof. A dimming cable hole 17 for passing a cable to be connected is formed, and a dimming cable (not shown) introduced from a mounted surface such as a ceiling surface is the main body 1 for the first time near the dimming terminal blocks 15A and 15B. It is introduced into the groove portion 10. For this reason, since the part which the cable for light control to 15A of light control terminal blocks 15B has exposed in the groove part 10 can be shortened, it is by the noise of the high frequency light control signal generated from the cable for light control The influence on other electronic devices can be suppressed.

  In this case, as shown in FIGS. 4 and 10, the dimming cable hole 17 is provided on the opposite side of the power supply box 25 among the dimming terminal blocks 15 </ b> A and 15 </ b> B, that is, the length of the lighting device 100. The dimming cable is introduced into the main body 1 so as to be directed to the power supply box 25. Thereby, a smooth and lean connection can be ensured. The dimming terminal block 15 is not necessarily installed when the lighting device 100 is not equipped with a dimming function.

(1-2 Mounting holes)
As shown in FIGS. 3 and 4, the mounting hole 12 formed on the top surface of the groove portion 10 is penetrated by a fixture such as an anchor bolt 13 for mounting the main body 1 on the mounted surface. As shown in FIGS. 3 and 4, the mounting hole 12 includes a plurality of sets of mounting holes 12A and 12B having a plurality of different intervals.

  Specifically, as shown in FIGS. 3 and 4, a set of mounting holes 12A arranged at an interval of 1200 mm and another set of mounting holes 12B arranged at an interval of 1400 mm can be used. . For this reason, it is possible to deal with various installation locations with a single main body 1 without preparing different types of main bodies 1 for each position and interval of mounting bolts installed on the surface to be mounted. Therefore, the installation location is not limited and the manufacturing cost can be reduced. In addition, the space | interval between each attachment hole 12 is not limited to the said value, It can set suitably as needed.

  Further, as shown in FIGS. 3 and 4, the attachment hole 12 is formed at a position that does not overlap with the power supply box 25 accommodated in the groove portion 10 of the main body 1 when the LED module 2 is attached. Specifically, as will be described later, the power supply box 25 mounted on the LED module 2 is disposed on both ends of the lighting device 100 in the present invention. And as shown in FIG. 4, it is provided in the center side in the longitudinal direction rather than these power supply boxes 25. Thereby, compared with the case where the mounting hole 12 is provided at both ends of the lighting device 100 and the power supply box 25 is disposed at the center, the distance from the mounting hole 12 to the power supply box 25 is shortened, and the LED module 2 is mounted. Further, the moment applied to the lighting device 100 due to the weight of the power supply box 25 can be reduced, and the bending of the lighting device 100 can be prevented.

(1-3 Stopper)
The main body 1 has a stopper (not shown) that engages with the mounted LED module 2 to fix the position of the LED module 2. Accordingly, the LED module 2 can be easily positioned when attached to the main body 1, the positional displacement of the LED module 2 can be prevented, and further, the LED module 2 due to the load of the power supply box 25 can be prevented. Displacement and deformation can be prevented. Specifically, a frame that is in close contact with the outer periphery of the LED module can be used as the stopper.

(1-4 Fixed piece)
Further, as shown in FIGS. 2 and 3, the main body 1 has a fixing piece 18 that is formed by cutting out a part of the inner wall surface of the groove portion 10 of the main body 1 and is bent at the time of cable wiring to fix the cable. The fixing pieces 18 are provided on the inner wall surfaces on both sides of the groove portion 10 of the main body 1. By providing the fixing pieces 18 on both sides, it can be used in any direction without considering the direction of the main body 1 and is fixed only to one side particularly when the main body 1 is molded. This is because, compared with the case where the pieces 18 are provided, the mold can be easily removed and manufacturing defects can be reduced.

(2. LED module)
On the other hand, the LED module 2 is formed in a long shape corresponding to the groove portion 10 of the main body 1 as shown in FIGS. 1, 3, and 5. The lighting device 100 is configured by attaching each LED module single unit 20 to a predetermined portion of the elongated main body 1.

(2-1 LED module alone)
As shown in FIGS. 5 to 9, each LED module single unit 20 includes a heat sink 21, an LED board 22 mounted on the heat sink 21, and a plurality of LED elements 23 mounted on the LED board 22. The LED board 22 and the LED element 23 are provided with a translucent cover 24 and a power supply box 25 for supplying electricity to the lighting device 100.

  In this case, in the illustrated embodiment, the two LED module single units 20 have the same shape, and the two LED module single units 20 are attached to the main body 1 when mounted. Among them, one LED module single unit 20 is arranged to be rotated 180 ° with respect to the other LED module single unit 20 around the central portion in the longitudinal direction of the lighting device 100. More specifically, as will be described later, as shown in FIGS. 3 and 4, the end of the plurality of LED modules 20 that are opposite to the side on which the power supply box 25 is mounted is connected to the lighting device 100. The power supply box 25 mounted on each LED module single unit 20 is attached to the main body 1 so as to be positioned at both ends in the longitudinal direction of the lighting device 100. That is, as the LED module single unit 20, it is sufficient to manufacture only the single-shaped LED module single unit 20 and simply combine them, so that the manufacturing cost of the LED module single unit 20 can be reduced.

  In addition, as shown in FIG. 1, it is desirable that the plurality of LED module single units 20 be installed with a gap portion 6 provided between the plurality of LED module single units 20. Thereby, it can respond also to the thermal expansion by the influence of the heat accompanying light emission.

(2-2-2 Power supply box)
Further, as shown in FIGS. 2 to 7 and 9, the power supply box 25 is installed for each LED module unit 20, and the back side of the LED substrate 22, that is, the LED element 23 is mounted on each LED module unit 20. It is installed on the opposite side of the installed surface (floor side when installed on the ceiling). Specifically, as shown in FIGS. 2 to 7 and 9, the power supply box 25 is mounted on the surface of the heat sink 21 opposite to the surface on which the LED substrate 22 is mounted. This is because the power supply box 25 is accommodated in the groove 10 of the main body 1 when the LED module single unit 20 is mounted on the main body 1.

  In this case, in the present invention, as shown in FIGS. 3, 4, and 11, the power supply box 25 is located at a position where the distance from the end is shorter than the distance from the center in the longitudinal direction of the lighting device 100. Is installed. Specifically, as shown in FIGS. 3 to 7, the power supply box 25 is attached to a position about 1/3 from one end of the LED module unit 20, and as described above, the LED module unit 20. As shown in FIGS. 3, 4, and 11, the power supply box 25 is disposed on both ends in the longitudinal direction of the lighting device 100 and attached to the main body 1. That is, as shown in FIGS. 3, 4, and 11, each LED module unit 20 is disposed in the groove 10 at the positions on both ends of the power supply box 25 with respect to the mounting holes 12 of the main body 1. Attach to.

  As a result, the distance from the mounting hole 12 to the power supply box 25 is shortened, and the moment from the mounting position on the surface to be mounted such as the ceiling surface, that is, the weight of the power supply box 25 when the LED module 2 is mounted. The moment applied to 100 can be reduced, and the power supply box 25 is disposed near both ends in the longitudinal direction of the lighting device 100, so that the load of the power supply box 25 is distributed without being concentrated in the central portion. Therefore, the lighting device 100 can be prevented from bending. At the same time, the lighting device 100 can be prevented from bending.

  As a result, the power supply terminal block 14 and the dimming terminal block 15 installed in the main body 1 are disposed closer to the central portion in the longitudinal direction of the lighting device 100 than the power supply box 25 as shown in FIG. It is arranged between two power supply boxes 25 mounted on the LED module single unit 20. In this case, since the power terminal block 14 and the dimming terminal block 15 that are lighter than the power supply box 25 are located on the center side in the longitudinal direction of the lighting device 100, a large moment is generated even if the distance from the mounting hole 12 is long. It is difficult to work and the bending of the lighting device 100 can be prevented.

  Further, as shown in FIG. 9, the power supply box 25 is arranged so as to be biased from the central portion of the heat radiating plate 21 toward the one wall surface portion 21 </ b> B so as to form the cable installation portion 19 in the groove 10 of the main body 1. ing. Thereby, even if the power supply box 25 is disposed in the groove portion 10 of the main body 1, the wiring is not hindered.

(2-3 Heat sink)
The heat radiating plate 21 has a function of radiating heat generated from the LED substrate 22, and has a substantially U-shaped cross section including a bottom surface portion 21A and both wall surface portions 21B as shown in FIG. Further, in the present invention, as shown in FIG. 9, the heat radiating plate 21 has a folded portion 21C formed by folding the upper ends of both wall surface portions 21B toward the bottom surface portion 21A. The folded portion 21C improves the strength of the heat sink 21. In particular, even when the relatively heavy power supply box 25 is mounted, it is possible to prevent the LED module 2 from being deformed such as bending. In addition, this heat sink 21 can be shape | molded by extrusion molding or bending forming aluminum.

(2.-4 LED substrate and LED element)
The LED substrate 22 is made of a glass composite substrate (CEM-3), and the LED element 23 is mounted on one surface. As shown in FIG. 7, the LED substrate 22 is preferably attached to the heat radiating plate 21 through an insulating sheet 26 in order to increase the heat radiation efficiency for radiating the heat accompanying light emission. However, it is sufficient if the insulating sheet 26 is installed as necessary, and it is not always necessary to provide it. In addition, as LED element 23, well-known various LED can be used. In the illustrated embodiment, a high-luminance LED element that emits white light for illumination is used.

  In the illustrated embodiment, the LED substrate 22 is formed by combining two LED substrate units 22A and 22B for each LED module unit 20 as shown in FIG. This is because the manufacture of the substrate is easy. More specifically, as shown in FIG. 8, the LED board 22 is composed of a first LED board single body 22A having a rectangular shape and a second LED board single body 22B, and the first LED board single body. 22A and the 2nd LED board single-piece | unit 22B are arrange | positioned so that both end surfaces may be opposed so that it may arrange | position continuously in a longitudinal direction. However, it is not always necessary to use a plurality of single LED substrates 22A and 22B, and a single LED substrate 22 can be used for each LED module.

  In this case, the first LED substrate unit 22A and the second LED substrate unit 22B have the same shape, as shown in FIG. 8, in the same manner as the LED module unit 20, and are turned 180 °. Are arranged symmetrically to constitute the LED substrate 24. In this way, by using a single LED substrate having the same shape, it is sufficient to prepare only a single shape LED substrate and simply combine them, thereby reducing the manufacturing costs of the LED substrates 22A and 22B. Can be reduced.

  In this case, in the present invention, as shown particularly in FIG. 8, the installation density of the LED elements 23 in each LED module single unit 20 is the installation density at both ends in the longitudinal direction of the LED substrate 22 (starting end and terminating end in the longitudinal direction). Is formed higher than the installation density of other portions. Specifically, as shown in FIG. 8, when a plurality of (two) LED substrate single units 22A and 22B are used, the LED element 23 (specifically, the end) on one end side in the longitudinal direction is used. The distance between the LED elements 23) from the second portion to the second row is set to be smaller than the distance between the other LED elements 23, and the LED substrate single units 22A and 22B are connected to the end portion of the LED element 23 having the higher density. By arranging and installing the LED module unit 20 in the LED module unit 20, the installation density of the LED elements 23 in each LED module unit unit 20 can be increased at both ends.

  Thereby, not only the both ends of the longitudinal direction in the whole illuminating device 100 but the light intensity of the connection part (center part in the longitudinal direction in the illuminating device 100 whole) especially even if it connects several LED module single-piece | unit 20. Reduction can be suppressed, and light can be continuously emitted to such an extent that the separation between the LED modules alone is not conscious, thereby ensuring linear light emission.

  In the illustrated embodiment, the LED module 2, and thus the LED substrate 22 loaded in the LED module 2, is formed in a flat plate shape as shown in FIG. 9, but considering the light diffusion efficiency, The LED module 2 can be formed in an inverted V shape, and the LED substrate 22 can be arranged in an inverted V shape on each inclined surface, or the flexible LED substrate 22 can be bent and arranged in an inverted V shape. .

  The LED module 14 also includes a reflection sheet 27 that is provided along the LED substrate 22 and reflects light emitted from the LED elements 18 in a direction to be irradiated, as shown in FIGS. 7 to 9. For this reason, it can concentrate on the front side (floor surface side in the case of installing in a ceiling surface) which needs light irradiation, can irradiate light, and can improve the irradiation efficiency in the illuminating device 100 whole. As the reflection sheet 27, specifically, a resin sheet formed from foamed polyethylene terephthalate can be used. In addition to the reflection sheet 27, for example, the irradiation efficiency can be improved by applying a highly reflective resin to the mounting surface of the LED substrate 22.

(2.-5 Translucent cover)
Further, as shown in FIG. 9, the translucent cover 24 is formed on the tapered portion 12 of the main body 1 in a gentle tapered surface following the drawing, and exhibits excellent design as the lighting device 100. As shown in FIG. 9, the translucent cover 24 is assembled by being slid from the terminal portion in the longitudinal direction of the LED module single body 20, and thus fitted with the bent portion 21 </ b> B, so that there is no possibility of dropping. .

(3. Mounting the LED module to the main unit)
In addition, there is no limitation in particular about mounting | wearing of the LED module 2 to the main body 1, Although an appropriate means can be used, In embodiment shown, the spring provided in the main body 1 shown in FIG.4 and FIG.10 3 and a spring receiver 4 provided in the LED module 2 shown in FIG. 6 and engaged with the spring 3 can be used. In this case, in the illustrated embodiment, since the two LED module single units 20 are used, the spring 3 and the spring receiver 4 are provided for each LED module single unit 20 as shown in FIGS. 4 and 6. A total of four places are provided in two places at both ends, the entire lighting device 100.

  Specifically, as shown in FIG. 10, the spring 3 includes a plurality of coil spring portions 31 arranged to face each other, and a frame portion 32 that extends from the coil spring portion 31 and is formed into a frame shape. A spring 3 can be used. On the other hand, the spring receiver 4 provided in the LED module 2 is engaged with the spring 3 by the restoring force of the spring 3 as shown in FIG. Thereby, the LED module 2 is detachably attached to the main body 1.

  In this case, unlike the case where the spring 3 is provided on the LED module 2 side by providing the spring 3 on the main body 1 side, the spring 3 is deformed against the urging force, and the spring 3 is simultaneously gripped and the LED module. The LED module 2 can be easily mounted on the main body 12 without the need to pull up each of them 2 and without a troublesome force work.

  The present invention is widely applied to, for example, a straight tube-type long illuminating device 100 and other illuminating devices installed on a ceiling surface of a relatively large facility such as a commercial facility such as an office or a store. Can do.

DESCRIPTION OF SYMBOLS 100 Illuminating device 1 Main body 10 Groove part 11 Tapered part 12 Mounting hole 13 Anchor bolt 14 Power supply terminal block 15 Light control terminal block 16 Power cable hole 17 Light control cable hole 18 Fixed piece 19 Cable installation part 2 LED module 20 LED module single-piece 21 Radiation plate 21A Bottom surface portion of heat radiation plate 21B Wall surface portion of heat radiation plate 21C Folding portion of heat radiation plate 22 LED substrate 22A, 22B LED substrate alone 23 LED element 24 Translucent cover 25 Power supply box 26 Insulation sheet 27 Reflective sheet 3 Spring 31 Coil spring Part 32 Frame part 4 Spring support 5 Flat vinyl armored cable 6 Air gap

Claims (20)

A lighting device comprising a main body attached to a surface to be attached such as a ceiling surface, and an LED module attached to the main body, the LED module comprising a plurality of LED modules alone,
Each of the LED modules alone has a power supply box that supplies electricity to the lighting device, and an LED substrate on which a plurality of LED elements that emit light by electricity supplied from the power supply box are mounted,
The said power supply box installed for each said LED module single-piece | unit is installed in the position where the distance from an edge part is shorter than the distance from the center part in the longitudinal direction of the said illuminating device. apparatus. It is the illuminating device described in Claim 1, Comprising: The said main body has a power supply terminal block, and the said power supply terminal block is a longitudinal direction of the said illuminating device rather than the power supply box installed for each said LED module single-piece | unit. It is arrange | positioned in the center part side in the illuminating device characterized by the above-mentioned. 3. The lighting device according to claim 1, wherein the main body also has a dimming terminal block, and the dimming terminal block is a power source installed for each LED module alone. It is arrange | positioned rather than the box at the center part side in the longitudinal direction of the said illuminating device, The illuminating device characterized by the above-mentioned. 4. The lighting device according to claim 2, wherein a plurality of the dimming terminal blocks and power supply terminal blocks installed in the main body are installed at positions corresponding to the individual LED modules. The lighting device characterized by being made. 5. The lighting device according to claim 2, wherein the dimming terminal block and the power supply terminal block installed in the main body are a plurality of power supplies installed for each LED module alone. An illuminating device arranged between boxes. 6. The lighting device according to claim 1, wherein the power supply box is installed on a back side of the LED substrate. 7. The lighting device according to claim 1, wherein the main body has a stopper that engages with the mounted LED module and fixes the position of the LED module. 8. Lighting device. The lighting device according to any one of claims 1 to 7, wherein the main body has a mounting hole through which a fixing tool for mounting the main body to the mounted surface passes, and the mounting hole is A lighting device comprising a plurality of sets of mounting holes having a plurality of different intervals. It is the illuminating device described in Claim 8, Comprising: The some space | interval where the said several sets of attachment hole differ is 1200 mm and 1400 mm, The illuminating device characterized by the above-mentioned. 10. The lighting device according to claim 8, wherein the plurality of sets of mounting holes are formed at positions that do not overlap the power supply box. 11. 11. The lighting device according to claim 1, wherein the LED module includes a heat radiating plate on which the LED substrate is mounted, and the heat radiating plate includes a bottom surface portion and both wall surface portions. An illuminating device comprising: a folded portion formed by folding the upper end of both wall surface portions toward the bottom surface portion side. It is an illuminating device described in Claim 11, Comprising: The said LED board is mounted | worn with the said heat sink via the insulating sheet, The illuminating device characterized by the above-mentioned. 13. The lighting device according to claim 11, wherein the power supply box is arranged so as to be biased from a center portion of the heat radiating plate to one wall surface side so as to form a cable installation portion. A lighting device characterized by that. 14. The lighting device according to claim 1, wherein the main body is formed by cutting out a part of an inner wall surface of the main body, and is bent at the time of cable wiring to fix the cable. An illuminating device comprising a fixed piece, wherein the fixed piece is provided on inner wall surfaces on both sides of the main body. The lighting device according to any one of claims 3 to 14, wherein the main body is a power cable for passing the cable to be connected to the power terminal block among cables introduced from a mounting surface. In addition to the hole, the lighting device further includes a light control cable hole for passing a cable to be connected to the light control terminal block. The lighting device according to claim 15, wherein the light control cable hole is formed on a side opposite to the power supply box on both sides of the light control terminal block. The lighting device is introduced into the main body so as to face the power supply box. The lighting device according to any one of claims 4 to 16, wherein, of the plurality of power supply terminal blocks, one of the power supply terminal blocks to which the cable that has passed through the power cable hole is connected, The lighting device is connected to the other power supply terminal block by a connection cable. The lighting device according to any one of claims 1 to 17, wherein the installation density of the LED elements in each LED module alone is other than the installation density at both ends in the longitudinal direction of the LED substrate. The lighting device is characterized by being higher than the installation density of the part. 19. The lighting device according to claim 1, wherein the LED module has a gap portion between the plurality of LED modules alone. 20. The lighting device according to claim 1, wherein each of the LED modules has the same shape, and one of the plurality of LED modules is a single LED module. Is arranged by turning 180 ° around the central portion in the longitudinal direction of the lighting device with respect to the other LED module alone.