JP2022100396A - Led lighting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting apparatus capable of being attached to a ceiling or the like with the direction aligned.

SOLUTION: In an LED lighting apparatus constituted of an LED unit and a mount, the LED unit includes a plurality of LED modules arrayed in a first direction, a support member, a cover, and a power conversion unit. The mount is constituted of a base plate and a wing unit. The base plate is formed like a longitudinal plate with a first direction as a longitudinal direction and a second direction orthogonal to the first direction as a width direction. A screw hole penetrated into a third direction orthogonal to the first direction and the second direction is formed in the base plate. The base plate is attached in a state that an adjustment member is arranged between a wall surface to which the base plate is to be attached and the base plate.

SELECTED DRAWING: Figure 20

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to an LED lighting device including a plurality of LED chips and used for, for example, indoor floor lighting and wall lighting.

FIG. 114 shows an example of a conventional LED lighting device in a cross-sectional view (see, for example, Patent Document 1). The LED lighting device X shown in the figure includes a long rectangular substrate 91, a plurality of LED chips 92 mounted on the substrate 91, a tube 93 for accommodating the substrate 91, a terminal 94, and an LED chip 92. It is provided with a circuit 95 for lighting. Wiring (not shown) connected to a plurality of LED chips 92 and terminals 94 is formed on the substrate 91. The LED lighting device X is configured so that a plurality of LED chips 92 can emit light by fitting the terminal 94 into the insertion port of the socket of a general-purpose fluorescent lamp lighting fixture. Since the LED chip 92 has low power consumption and a long life, if the LED lighting device X is used as a substitute for the fluorescent lamp, improvement in cost and environment can be expected. The general-purpose fluorescent lamp lighting fixture is a lighting fixture widely used mainly for indoor general lighting. For example, in Japan, a commercial 100V power supply is used, and a straight tube fluorescent lamp or a straight tube type fluorescent lamp specified in JIS C7617 is used. A lighting fixture to which a ring-shaped fluorescent lamp specified in JIS C7618 is attached.

However, a lighting fixture using a conventional fluorescent lamp is configured on the premise that terminals 94 are present at both ends thereof and emit light in the entire circumferential direction. For this reason, for example, when a plurality of LED lighting devices X are attached to a lighting fixture in which a plurality of fluorescent lamps are arranged in series, a dark portion that does not emit light is generated between the adjacent LED lighting devices X. Those who see this may find it unattractive. Alternatively, even when it is desired to illuminate a part of the wall surface, when the LED lighting device X is used, the light is irradiated to the portion other than the portion to be illuminated. For this reason, for example, it is forced to provide a light-shielding cover that covers half a circumference of the LED lighting device X.

Further, in the LED lighting device X, a plurality of LED chips 92 are used as a light source. Since the LD chip 92 is a point light source, the light from the LED lighting device X tends to cause uneven brightness. If this uneven brightness is remarkable, the individual LED chips 92 may be visible depending on the viewing direction. In such a case, the viewer sometimes felt that it did not look good.

In addition, when the LED lighting device is installed on the ceiling or the like without using a general-purpose fluorescent lighting fixture, the parts may deteriorate due to long-term use, and the parts may be tilted or misaligned, resulting in poor appearance. I am concerned.

Further, when a plurality of LED lighting devices are mounted in different directions along a corner or a pillar of a room, it is assumed that the ends of the plurality of LED lighting devices are arranged in different directions within a narrow range. To. In such a case, it gives a complicated impression to the viewer, and there is a concern that the appearance may be deteriorated.

Further, when the LED lighting device X is attached to the ceiling, it is attached to the general-purpose fluorescent lamp lighting fixture fixed to the ceiling. Therefore, the LED lighting device X emits light at a position slightly downward from the ceiling. Then, the person who sees the ceiling gets the impression that the LED lighting device X and the general fluorescent lighting fixture are considerably protruded from the ceiling. There was a problem that this jumping out from the ceiling hindered the unification of the indoor appearance into a smart impression.

Further, when the LED lighting device X is attached to the lighting fixture installed on the ceiling, the LED lighting device X looks like it protrudes considerably from the ceiling. Such a protruding LED lighting device X may give the impression that the room is complicated.

Square root extraction No. 6-54103

The present invention has been conceived under the above circumstances, and an object of the present invention is to provide an LED lighting device capable of suppressing uneven brightness.

The LED lighting device provided by the present invention is an LED lighting device to be mounted on a surface to be mounted, and includes a plurality of LED chips, an LED unit extending along a first direction, and at least a part thereof described above. It is characterized by including a support that is located behind the mounted surface and has a box portion that accommodates at least a part of the LED unit from the opening provided in the mounted surface.

In a preferred embodiment of the present invention, the support further includes a frame portion that is connected to the outer periphery of the box portion and that engages with the attached surface.

The LED lighting device provided by the present invention is an LED lighting device including a plurality of LED chips, wherein the plurality of LED chips are mounted, and an elongated support member extending along a first direction and an elongated support member. It is connected to the support member, covers the plurality of LED chips, and includes a diffusion cover that diffuses the light from the plurality of LED chips and emits the light to the outside, and the diffusion cover is provided in the first direction. In terms of vision, it has a strong diffusion section including a portion where the distance from the LED chip is the smallest, and the degree to which the light from the plurality of LED chips of the strong diffusion section is diffused is the average of the entire diffusion cover. It is characterized by being stronger than.

In a preferred embodiment of the present invention, the diffusion cover is formed thicker as the distance from the LED chip is closer in the first directional view.

In a preferred embodiment of the present invention, the strong diffusion portion is formed of a material that diffuses light from the LED chip more strongly than the material of the portion other than the strong diffusion portion of the diffusion cover.

In a preferred embodiment of the present invention, the diffusion cover has a constant thickness.

In a preferred embodiment of the present invention, the strong diffusion unit is composed of a main body of the diffusion cover and a diffusion member laminated on the main body to diffuse light from the plurality of LED chips.

In a preferred embodiment of the present invention, the main body of the diffusion cover has a constant thickness.

In a preferred embodiment of the present invention, the diffusing material is laminated inside the main body of the diffusing cover.

In a preferred embodiment of the present invention, the LED chip is installed so that the second direction orthogonal to the first direction is the main emission direction, and the diffusion cover is the first direction. Visually, the outer peripheral shape is an ellipse with the LED chip as the center and the second direction as the minor axis direction.

In a preferred embodiment of the present invention, the strong diffusion portion is in the shape of a flat plate.

In a preferred embodiment of the invention, the diffusion cover is made of resin.

In a preferred embodiment of the invention, the diffusion cover is milky white.

In a preferred embodiment of the present invention, each includes a plurality of LED modules including the LED chip, a lead on which the LED chip is mounted, and a translucent resin covering the LED chip.

In a preferred embodiment of the present invention, the translucent resin contains a fluorescent substance that emits light having a wavelength different from the light from the LED chip when excited by the light from the LED chip.

In a preferred embodiment of the present invention, the size of the strong diffusion portion in the third direction, which is perpendicular to both the first direction and the second direction, is larger than that of the LED module. Is.

In a preferred embodiment of the present invention, the plurality of LED chips are mounted, and the elongated LED unit extending in the first direction and the LED unit are held in the second direction. The LED unit comprises a support mounted on a facing surface, the LED unit comprises a bracket for holding the plurality of LED chips, and the translucent cover comprises a bracket in the second direction of the bracket. It is attached to a portion located on the side opposite to the side where light is emitted from the plurality of LED chips.

In a preferred embodiment of the present invention, the bracket is formed with a recess formed in the bracket on the side opposite to the side where light is emitted from the plurality of LED chips in the second direction, and the plurality of LED chips are formed. , Is arranged in the recess.

In a preferred embodiment of the present invention, the power conversion unit for converting the power input from the outside into the power suitable for the plurality of LED chips is provided, and the power conversion unit may be used with respect to the plurality of LED chips. It is located on the side opposite to the side where light is emitted from the plurality of LED chips in the second direction, and is housed in the bracket.

In a preferred embodiment of the invention, the diffusion cover engages the bracket.

In a preferred embodiment of the present invention, a pair of locking pieces are formed at both ends of the diffusion cover.

In a preferred embodiment of the invention, the bracket is formed with a pair of engaging grooves that engage the pair of locking pieces of the diffusion cover.

Other features and advantages of the invention will be more apparent by the detailed description given below with reference to the accompanying drawings.

It is a main part perspective view which shows the LED lighting apparatus based on 1st Embodiment of this invention. It is sectional drawing which follows the II-II line of FIG. It is a main part perspective view which shows the LED unit of the LED lighting apparatus shown in FIG. It is sectional drawing which follows the IV-IV line of FIG. It is sectional drawing which shows the LED module used for the LED unit shown in FIG. It is a main part perspective view which shows the case of the power conversion part of the LED unit shown in FIG. It is sectional drawing which shows the cover attachment in the assembly of the LED unit shown in FIG. It is sectional drawing of the main part which shows the state which the cover of the LED unit shown in FIG. 3 is pushed. FIG. 1A shows a front view, FIG. 1B is a side view, and FIG. 1C is a plan view showing a holder of the LED lighting device shown in FIG. 1. It is sectional drawing which shows the attachment of the LED unit to the mount in the assembly of the LED lighting apparatus shown in FIG. It is sectional drawing which shows the removal of the LED unit in the LED lighting apparatus shown in FIG. It is a main part perspective view which shows the LED lighting apparatus based on 2nd Embodiment of this invention. It is sectional drawing which follows the XIII-XIII line of FIG. It is sectional drawing which shows the LED unit of the LED lighting apparatus shown in FIG. It is a front view of the main part which shows the attachment of the LED unit to the mount in the assembly of the LED lighting apparatus shown in FIG. It is a side view which shows the attachment of the LED unit to the mount in the assembly of the LED lighting apparatus shown in FIG. FIG. 12A shows a front view and FIG. 12B shows a side view showing a holder of an LED unit in the LED lighting device shown in FIG. 12. It is a main part perspective view which shows the LED lighting apparatus based on 3rd Embodiment of this invention. It is sectional drawing which follows the XIX-XIX line of FIG. It is sectional drawing which shows the LED lighting apparatus based on 4th Embodiment of this invention. It is sectional drawing which shows the support of the LED lighting apparatus shown in FIG. It is sectional drawing which shows the state which attached the base plate of the support shown in FIG. 21 as it is to the wall surface. It is sectional drawing which shows the state which attached the base plate of the support shown in FIG. 21 to the wall surface. FIG. 3 is a cross-sectional view taken along the line XXIV-XXIV of FIG. 23. FIG. 22 is a cross-sectional view showing a state in which the base plate of the support shown in FIG. 22 is attached to the wall surface by using another adjusting member. It is sectional drawing which shows the base plate provided with still another adjustment member. FIG. 26 is an enlarged view of a main part of the base plate shown in FIG. 26. It is sectional drawing which shows the preferable mounting state of the base plate shown in FIG. It is sectional drawing which shows the state which the adjustment member was incorporated in the support shown in FIG. It is a main part perspective view which shows the LED lighting apparatus based on 5th Embodiment of this invention. It is a top view which shows the LED lighting apparatus shown in FIG. It is sectional drawing which follows the line XXXII-XXXII of FIG. FIG. 3 is a plan view showing a state in which the LED lighting device shown in FIG. 30 is mounted on the ceiling. FIG. 3 is a plan view showing a state in which the LED lighting device shown in FIG. 33 is displaced in the x direction. FIG. 3 is a plan view showing a state in which the LED lighting device shown in FIG. 33 is displaced in the y direction. It is a top view which shows the modification which applied the screw hole to the base plate. It is sectional drawing which shows the LED lighting apparatus based on 6th Embodiment of this invention. It is a perspective view which shows the holder in the LED lighting apparatus shown in FIG. 37. It is a side view of the main part of the LED lighting apparatus shown in FIG. 37. It is a side view of the main part which shows the modification of the LED lighting apparatus shown in FIG. 37. It is a side view of the main part which shows another modification of the LED lighting apparatus shown in FIG. 37. It is a main part perspective view which shows the LED lighting apparatus based on 7th Embodiment of this invention. It is sectional drawing which follows the XLIII-XLIII line of FIG. 42. It is sectional drawing which shows the attachment of the LED unit in the LED lighting apparatus shown in FIG. 42. It is sectional drawing which shows the attachment of the LED unit in the LED lighting apparatus shown in FIG. 42. It is sectional drawing which shows the removal of the LED unit in the LED lighting apparatus shown in FIG. 42. It is a main part perspective view which shows the main part of the LED lighting apparatus based on 8th Embodiment of this invention. It is a perspective view which shows the base plate of the LED lighting apparatus shown in FIG. 47. It is sectional drawing along the XLIX-XLIX line of FIG. 48. It is sectional drawing which shows the modification of the light-shielding part shown in FIG. 47. It is sectional drawing which shows the other modification of the light-shielding part shown in FIG. 47. It is a main part perspective view which shows the further modification of the light-shielding part shown in FIG. 47. It is a main part perspective view which shows the LED lighting apparatus based on 9th Embodiment of this invention. It is an enlarged sectional view of the cover shown in FIG. 53. It is sectional drawing which shows the modification of the cover shown in FIG. 54. FIG. 5 is a cross-sectional view showing another modification of the cover shown in FIG. 54. FIG. 5 is a cross-sectional view showing still another modification of the cover shown in FIG. 54. FIG. 5 is a cross-sectional view showing still another modification of the cover shown in FIG. 54. It is an exploded perspective view of the LED lighting apparatus based on the tenth embodiment of this invention. It is a top view which shows the base plate of the LED lighting apparatus shown in FIG. 59. It is sectional drawing of the main part which shows the process of attaching a base plate shown in FIG. 59 to a wall surface. It is a main part plan view which shows the process of attaching a base plate shown in FIG. 59 to a wall surface. It is a main part perspective view which shows the modification of the index part shown in FIG. 59. It is a main part plan view which shows the modification of the index part shown in FIG. 61. FIG. 6 is a plan view of a main part showing another modification of the index part shown in FIG. 61. It is a main part plan view which shows the further modification of the index part shown in FIG. 61. It is sectional drawing of the LED lighting apparatus based on 11th Embodiment of this invention. It is a perspective view of the main part of the LED unit shown in FIG. 67. It is sectional drawing of the LED unit shown in FIG. 68. It is a simple wiring block diagram of the LED unit shown in FIG. 68. It is a main part perspective view of the LED lighting apparatus based on the twelfth embodiment of this invention. It is a side view of the LED unit shown in FIG. 71. FIG. 7 is a cross-sectional view taken along the line LXXIII-LXXIII of FIG. 72. It is a main part perspective view of the LED lighting apparatus based on the thirteenth embodiment of this invention. It is sectional drawing of the LED unit shown in FIG. 74. It is a main part perspective view of the LED lighting apparatus based on the 14th embodiment of this invention. It is sectional drawing of the LED unit shown in FIG. 76. It is a main part perspective view of the LED lighting apparatus based on the fifteenth embodiment of this invention. It is a perspective view of the holder shown in FIG. 78. (A) of the holder shown in FIG. 79 is a front view, (b) is a side view, and (c) is a plan view. It is a top view which shows the LED lighting apparatus based on the 16th Embodiment of this invention. FIG. 8 is a plan view of the LED lighting device shown in FIG. 81 as viewed from the opposite direction. FIG. 8 is a cross-sectional view taken along the line LXXXIII-LXXXIII of FIG. It is an enlarged view of the main part of FIG. It is an enlarged view of the main part of FIG. (A) is a plan view, (b) is a side view, and (c) is a bottom view of the first support shown in FIG. 81. (A) of the bracket shown in FIG. 81 is a left side view, (b) is a plan view, and (c) is a right side view. FIG. 8 is an enlarged view of a main part of the cover shown in FIG. (A) of the cap shown in FIG. 85 is a front view, (b) is a side view, and (c) is a front view showing a state before mounting. (A) of the cap shown in FIG. 84 is a front view, (b) is a side view, (c) is a plan view, and (d) is a front view showing a state before mounting. (A) of the cap shown in FIG. 81 is a front view, (b) is a side view, and (c) is a plan view. In the case shown in FIG. 83, (a) is a side view of the main part, (b) is a front view, and (c) is a plan view of the main part. It is a development view of the case shown in FIG. 92. It is an enlarged plan view of the main part which shows the LED lighting apparatus based on the 17th Embodiment of this invention. FIG. 3 is an enlarged plan view of a main part showing an LED lighting device based on the 18th embodiment of the present invention. It is an enlarged plan view of the main part which shows the LED lighting apparatus based on the 19th Embodiment of this invention. It is a perspective view of the main part of the LED lighting apparatus based on the twentieth embodiment of the present invention. It is sectional drawing of the LED lighting apparatus shown in FIG. 97. It is a front view of the wing part of the LED lighting apparatus shown in FIG. 97. It is a top view of the wing part of the LED lighting apparatus shown in FIG. 97. It is a side view of the wing part of the LED lighting apparatus shown in FIG. 97. It is a bottom view of the wing part of the LED lighting apparatus shown in FIG. 97. It is a main part plan view of the LED lighting apparatus based on the 21st Embodiment of this invention. It is sectional drawing of the main part along the CIV-CIV line of FIG. 103. It is sectional drawing which follows the CV-CV line of FIG. 103. It is sectional drawing which follows the CVI-CVI line of FIG. 103. It is sectional drawing which shows the modification of the LED lighting apparatus based on the 21st Embodiment of this invention. It is a main part plan view of the LED lighting apparatus based on the 22nd Embodiment of this invention. It is a main part plan view of the LED lighting apparatus based on the 23rd Embodiment of this invention. It is sectional drawing of the main part along the CIX-CIX line of FIG. 109. It is sectional drawing which follows the CX-CX line of FIG. 109. It is sectional drawing along the CXI-CXI line of FIG. 109. It is a main part plan view of the LED lighting apparatus based on the 24th Embodiment of this invention. It is sectional drawing which shows an example of the conventional LED lighting apparatus.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

1 and 2 show an LED lighting device based on the first embodiment of the present invention. The LED lighting device A1 of the present embodiment is composed of a mount 1 and an LED unit 2, and is used for illuminating a floor surface, for example, while being mounted on an indoor ceiling surface, and has a length of 1227 mm. The width is about 120 mm and the height is about 38 mm.

The mount 1 includes a main body 10 and a plurality of holders 11. The main body 10 has an elongated shape extending in the x direction, and is made of, for example, aluminum. The main body 10 is provided with a recess 10a. The recess 10a is for accommodating the LED unit 2. The main body 10 has a curved surface having a curvature that is continuous with the recess 10a interposed therebetween.

The holder 11 is formed by, for example, bending a metal plate, and has a pair of locking pieces 11a and a pair of flexible portions 11b. As shown in FIG. 9, the flexible portion 11b is shaped to support the locking piece 11a. When an external force is applied, the pair of flexible portions 11b can be elastically deformed in a direction in which the pair of locking pieces 11a are brought close to each other and separated from each other. The pair of locking pieces 11a are portions that engage with the LED unit 2, and are inclined so that the distance between them becomes smaller toward the upper side in the figure in FIG. 9A. In this embodiment, a plurality of holders 11 are provided in the recess 10a.

As shown in FIGS. 3 and 4, the LED unit 2 includes a plurality of LED modules 20, a support member 3, a cover 4, and a power conversion unit 5. The LED unit 2 has a length (about 1220 mm) extending to both ends of the mount 1 in the x direction.

As shown in FIG. 5, the LED module 20 includes a pair of leads 21, an LED chip 22, a sealing resin 23, and a reflector 24. The pair of leads 21 is made of, for example, a Cu alloy, on which the LED chip 22 is mounted. The surface of the leads 21 opposite to the surface on which the LED chip 22 is mounted is a mounting terminal 21a used for surface mounting the LED module 20. The LED chip 22 is a light source of the LED module 20, and is capable of emitting blue light, for example. The sealing resin 23 is for protecting the LED chip 22. The sealing resin 23 is formed by using a translucent resin containing a fluorescent substance that emits yellow light when excited by light from the LED chip 22. As a result, the LED module 20 can irradiate white. As the fluorescent substance, a substance that emits red light and a substance that emits green light may be mixed and used instead of the substance that emits yellow light. The reflector 24 is made of, for example, a white resin, and is for reflecting the light emitted laterally from the LED chip 22 upward.

As shown in FIGS. 3 and 4, the support member 3 supports a plurality of LED modules 20 and supplies electric power to the support member 3, and includes a substrate 31 and a bracket 32.

The substrate 31 has a strip shape with the x direction as the longitudinal direction and the y direction as the width direction, and is made of, for example, a glass epoxy resin. In this embodiment, 288 LED modules 20 are mounted on the substrate 31.

As shown in FIG. 4, the bracket 32 includes a base portion 321 and a pair of outer portions 322. The base portion 321 and the outer portion 322 are made of, for example, aluminum. The base portion 321 has a U-shaped cross section, and the substrate 31 is attached to the outside of the bottom surface thereof. The outer portion 322 has a shape that covers substantially one side portion of the base portion 321 and the y-direction end edge of the substrate 31. As shown in FIGS. 3 and 4, the base portion 321 and the outer portion 322 are fastened by a plurality of screws 33.

As shown in FIG. 4, a locking groove 323 is formed in each outer portion 322. The locking groove 323 extends in the x direction and is recessed in the z direction on the side opposite to the emission direction of the LED module 20. The locking groove 323 is a portion that engages with the locking piece 11a of the holder 11.

Further, a locking groove 324 is formed in one outer portion 322. The locking groove 324 extends in the x direction and is recessed in the z direction on the side opposite to the emission direction of the LED module 20. The locking groove 324 has a locking surface 324a. The locking surface 324a extends in the x direction and faces the opposite side in the emission direction in the z direction. A locking groove 325 is formed in the other outer portion 322. The locking groove 325 has a locking surface 325a and a convex piece 325b. The locking surface 325a extends in the x direction and faces the opposite side in the emission direction in the z direction. The convex piece 325b is located closer to the side opposite to the emission direction in the z direction than the locking surface 325a, and is convex in the emission direction.

As shown in FIG. 3, the cover 4 has an arcuate cross-section extending in the x direction, and is made of, for example, a milky white resin that transmits light from the LED module 20 while diffusing it. As shown in FIG. 4, locking pieces 41 and 42 are formed on both end edges of the cover 4.

The locking piece 41 has an end portion 41a and a step portion 41b. The end portion 41a is convex on the opposite side of the emission direction in the z direction. The step portion 41b has a shape that shifts the end portion 41a inward in the y direction before and after the step portion 41b. The locking piece 41 engages with the locking groove 324. More specifically, the end portion 41a is designed to enter the locking groove 324. The step portion 41b is in contact with the locking surface 324a.

The locking piece 42 has a locking surface 42a and an inclined surface 42b. The locking surface 42a faces the emission direction in the z direction. The inclined surface 42b is located closer to the side opposite to the exit direction in the z direction than the locking surface 42a, and faces the convex piece 325b of the support member 3 in the z direction. The inclined surface 42b is inclined so as to be located inward in the y direction toward the opposite side of the emission direction in the z direction. The locking piece 42 engages with the locking groove 325 of the support member 3. More specifically, the locking surface 42a is in contact with the locking surface 325a of the support member 3.

The power conversion unit 5 has a function of converting, for example, commercial AC100V power into DC36V, and is housed in the support member 3. The power conversion unit 5 includes a case 51, a power supply board 52, and a plurality of electronic components 53. The case 51 has a U-shaped cross section and is made of metal, for example. As shown in FIG. 6, a plurality of notched portions 51a are formed at the end portions of the case 51. The cutout portion 51a is used to fix the power conversion portion 5 by engaging with a portion of the screw 33 shown in FIG. 4 that protrudes inward from the base portion 321. The power supply board 52 is fixed to the case 51, and a plurality of electronic components 53 are mounted on the power supply board 52. The plurality of electronic components 53 are, for example, a transformer, a rectifier, and a transistor for constant current control. As shown in FIG. 3, a connector 34 extends from the power conversion unit 5. The connector 34 is connected to a connector (not shown) attached to the mount 1.

In the present embodiment, two power conversion units 5 are provided, and power is supplied from one power conversion unit 5 to 144 LED modules 20. These 144 LED modules 20 are divided into 12 groups in which 12 LEDs connected in series with each other are paired. These groups are connected in parallel. As a result, each LED chip 22 is supplied with DC power having a voltage of about 3 V and a current of about 20 mA.

Next, the operation of the LED lighting device A1 will be described.

According to the present embodiment, the LED lighting device A1 has a relatively gentle shape that does not remarkably protrude from the ceiling surface. For this reason, it gives a smart impression to what you see without unduly disturbing the aesthetics of the room. Further, when a plurality of LED lighting devices A1 are arranged in series with each other, the LED units 2 of the adjacent LED lighting devices A1 are in a very close positional relationship. Therefore, an excessive non-light emitting region is not formed between the LED lighting devices A1. Therefore, it can give the viewer the impression that it looks good as a lighting device that illuminates a wider indoor floor surface.

By accommodating the power conversion unit 5 in the U-shaped support member 3, the height of the LED lighting device A1 can be made relatively low.

The outer portion 322 is designed to hold down the substrate 31. As a result, even when the LED lighting device A1 is used for a long period of time while being mounted on the ceiling, it is possible to prevent the substrate 31 from being unreasonably dropped.

FIG. 7 shows how the cover 4 is attached to the support member 3 when the LED unit 2 is assembled. As is well shown in this figure, first, the locking piece 41 of the cover 4 is hooked on the locking groove 324 of the support member 3. Next, the cover 4 is rotated around the locking piece 41 to bring the locking piece 42 closer to the locking groove 325. Then, when the locking piece 42 is pushed into the locking groove 325, the locking surface 325a and the locking surface 42a come into contact with each other. In this way, the cover 4 can be easily attached.

FIG. 10 shows how the LED unit 2 is attached to the mount 1 when the LED lighting device A1 is assembled. As is well shown in this figure, first, for example, the LED unit 2 is brought closer to the mount 1 fixed to the ceiling from below. Then, the LED unit 2 is pushed between the pair of locking pieces 11a of the holder 11. Then, the flexible portion 11b bends slightly, so that the pair of locking pieces 11a are once separated from each other. After that, as shown in FIG. 2, the locking piece 11a engages with the locking groove 323 of the support member 3. In this way, the LED unit 2 can be easily attached.

When pushing in the LED unit 2, the cover 4 is easily pushed by a strong force. At this time, as shown in FIG. 8, the locking piece 42 moves toward the back of the locking groove 325 in the z direction. Then, the inclined surface 42b and the convex piece 325b come into contact with each other. As a result, the locking piece 42 is given a force that directs it inward in the y direction. This makes it possible to prevent the cover 4 from being unreasonably detached from the support member 3 even if the cover 4 is strongly pressed.

FIG. 11 shows how the LED unit 2 is removed from the mount 1. As is often shown in this figure, first, a removal jig D having a U-shaped cross section is prepared. Then, both side edges of the removal jig D are pressed against the locking piece 11a of the holder 11. Then, the flexible portion 11b is elastically deformed, and the pair of locking pieces 11a are separated from each other. As a result, the engagement state between the locking piece 11a and the locking groove 323 is released. In this way, the LED lighting device A1 can easily remove the LED unit 2 from the mount 1.

12-97 show other embodiments of the present invention. In these figures, the same or similar elements as those in the above embodiment are designated by the same reference numerals as those in the above embodiment.

12 and 13 show an LED lighting device based on the second embodiment of the present invention. The LED lighting device A2 of the present embodiment is a type used for illuminating an upper portion of a wall surface exposed from a product shelf, for example, in a state of being attached to a relatively close corner of the ceiling of a store. The LED lighting device A2 has, for example, a length of about 1290 mm, a width of about 73 mm, and a height of about 50 mm.

The main body 10 of the mount 1 has a wedge-shaped cross section, and is shaped so that the wall surface side opens when the mount 1 is attached to the ceiling. The LED unit 2 is housed in the mount 1 and is rotatable in the direction x.

As shown in FIG. 14, in the present embodiment, the reflector 322a is provided on the outer portion 322 of the bracket 32 of the support member 3. The reflector 322a is for reflecting the light emitted from the LED module 20 in the y direction downward in the z direction. Locking grooves 324 and 325 are formed on the end edges of the reflector 322a, respectively, and a cover 4 is attached to the reflectors 322a.

As shown in FIG. 15, the LED unit 2 of the present embodiment has a pair of shafts 35. A pair of shafts 35 are attached to both ends of the support member 3 in the x direction. The shaft 35 includes a root portion 35a and a tip portion 35b. The root portion 35a is a portion attached to the support member 3. The tip portion 35b is rotatable with respect to the root portion 35a. More specifically, when rotating the tip portion 35b, a resistance force that requires the use of a tool such as pliers is generated.

Mount 1 has a pair of holders 12. A pair of holders 12 are attached to both ends of the main body 10 in the x direction. As shown in FIG. 17, the holder 12 is formed with a fitting portion 12a, a flexible portion 12b, and a hook-shaped portion 12c. The fitting portion 12a is an oval-shaped hole and fits with the tip portion 35b of the shaft 35. The flexible portion 12b is a portion that holds the fitting portion 12a, and when an external force is applied, the flexible portion 12b is elastically deformed so as to move the fitting portion 12a outward in the x direction. The hook-shaped portion 12c is located inward in the x direction with respect to the fitting portion 12a, and has a J-shape.

As shown in FIGS. 15 and 16, when the LED unit 2 is attached to the mount 1, the LED unit 2 is brought close to the mount 1 and the tip portion 35b of the shaft 35 is pressed against the flexible portion 12b of the holder 12. Then, the flexible portion 12b is deformed so that the fitting portions 12a of the pair of holders 12 are separated from each other. Further, when the LED unit 2 is pushed in, the tip portion 35b is fitted to the fitting portion 12a, and the flexible portion 12b has the shape before deformation. As a result, the LED unit 2 can be easily attached to the mount 1 only by pushing the LED unit 2. Further, even if the tip portion 35b is not properly fitted to the fitting portion 12a in the mounting work, the shaft 35 is likely to be caught by the hook-shaped portion 12c. Therefore, it is possible to prevent the LED unit 2 from being accidentally dropped during the installation work of the LED unit 2.

Since the LED lighting device A2 can rotate the LED unit 2 in the x direction, for example, a portion of the wall surface above the product shelf can be selectively illuminated. By providing the reflector 322a, it is suitable for illuminating a desired portion with high illuminance.

18 and 19 show an LED lighting device based on the third embodiment of the present invention. The LED lighting device A3 of the present embodiment mainly differs from the LED lighting device A1 described above in the configuration of the mount 1, but the other configurations are the same as those of the LED lighting device A1, and the description thereof will be omitted as appropriate.

In the present embodiment, the main body 10 of the mount 1 is composed of a base plate 110 and a wing portion 120. The base plate 110 is formed in an elongated plate shape having the x direction as the longitudinal direction and the y direction as the width direction, and includes a mounting surface 110a and a plurality of bulging portions 111. Both end edges of the base plate 110 in the y direction are bent downward in the z direction to ensure rigidity. The mounting surface 110a is a flat surface perpendicular to the z direction, and is provided on the upper side in the z direction. The plurality of bulging portions 111 are portions formed so as to project downward in the z direction, and are arranged so as to be separated from each other along the x direction. Each bulging portion 111 is in contact with the wing portion 120.

The wing portion 120 has a bottom plate portion 121, two wall portions 122, and two bow-shaped portions 123, and is made of opaque, for example, resin or aluminum. The bottom plate portion 121 is parallel to the base plate 110. The two wall portions 122 stand upright in the z direction from both ends of the bottom plate portion 121 in the y direction. The bottom plate portion 121 and the two wall portions 122 form a recess 10a for accommodating the LED unit 2. The two bow-shaped portions 123 extend from the lower ends of the two wall portions 122 in the z direction and are arranged so as to sandwich the recess 10a. The bow-shaped portion 123 of No. 2 has a shape in which the envelope is shaped like a bow. The base plate 110 and the wing portion 120 are connected to each other by, for example, a screw (not shown).

The LED unit 2 has the same configuration as described above with reference to FIGS. 3 and 4. More specifically, as shown in FIG. 19, a recess 321a is formed in the base portion 321. The recess 321a is recessed upward in the z direction, and the substrate 31 is fitted therein.

The lower portion of the cover 4 in the figure has a shape corresponding to a part of an ellipse having the y direction as the major axis direction and the z direction as the minor axis direction. The position where the locking pieces 41, 42 of the cover 4 and the outer portion 322 of the bracket 32 are coupled to each other is the upper side in the figure with respect to the LED module 20, that is, the side opposite to the side where light is emitted from the LED module 20. Is located in.

In the present embodiment, the total height ht of the LED lighting device A3 is 40.3 mm. The total height ht is preferably less than 45 mm. The total width Wt of the LED lighting device A3 is 120 mm. The ratio of the total height ht to the total width Wt is ht / Wt = 1/3. This ratio ht / Wt is preferably less than 1/2.

Further, the height h1 from the upper end of the mount 1 of the LED lighting device A3 to the lower end of the LED module 20 is 30 mm. The LED module 20 of this embodiment is remarkably small. Therefore, in the LED lighting device A3, the lower surface of the LED module 20 can be regarded as being substantially at the same position as the light emitting surface of the LED chip 22. Further, the height h2 from the lower surface of the LED module 20 (light emitting surface of the LED chip 22) to the lower end of the LED unit 2 is 10.3 mm. The ratio of heights h1 and h2 is h1 / h2 = 2.9. It is desirable that this ratio h1 / h2 is greater than 2 and less than 4.

The height d1 of the power conversion unit 5 is 19.5 mm. The ratio of the height d1 to the height h1 is d1 / h1 = 0.65. It is desirable that this ratio d1 / h1 is larger than 1/2.

Further, the height h3 of the mount 1 of the LED lighting device A3 is set to 30 mm. As a result, the height h3 is about 0.75 times the total height ht. It is desirable that the height h3 is 0.7 times or more the total height ht.

Next, the operation of the LED lighting device A3 will be described.

The envelope 123 of the bow-shaped portion 123 of the mount 1 has a bow-shaped envelope. The cover 4 of the LED unit 2 does not completely match the envelope, but is close to the envelope and has a shape and position that gives a familiar impression. It is desirable that the crossing angle α1 between the extension line extending from the outer surface of the bow-shaped portion 123 toward the LED unit 2 and the cover 4 of the LED unit 2 is 40 degrees or less.

According to such an embodiment, the total height ht is as low as 40.3 mm, so that the amount of the LED lighting device A3 protruding from the ceiling is significantly smaller than that of the configuration using the conventional LED lamp. can do. As a result, it is possible to prevent the viewer from having a complicated impression and to make the light distribution characteristics more uniform. In particular, when it is intended to be mounted on the ceiling and used, if the total height ht is less than 45 mm, the effect of suppressing complicated impressions and making the light distribution characteristics uniform can be expected.

As a specific application of the LED lighting device A3, it is assumed that the LED lighting device A3 is used as a substitute for the lighting device in a place where the lighting device using a fluorescent lamp is attached. In this case, when the lighting device using the fluorescent lamp is removed, the mounting marks of the lighting device often remain on the ceiling as scratches or discolored parts. The LED lighting device A3 of the present embodiment has a relatively small ratio ht / Wt of 1/3. In other words, this means that the total width Wt is relatively wide while the total height ht is low. Such a configuration has an advantage that the mounting traces of the lighting device previously mounted can be hidden. In addition to being able to suppress complicated impressions and realize uniform light distribution characteristics, it is desirable that the ratio ht / Wt is less than 1/2 in order to exhibit such advantages.

Since the ratio h1 / h2 is 2.9, it is possible to improve the light distribution characteristics while securing an appropriate space for arranging the power conversion unit 5. If the ratio h1 / h2 is 2 or less, the space for arranging the power conversion unit 5 is insufficient. On the other hand, when the ratio h1 / h2 is 4 or more, the light distribution characteristics tend to be non-uniform. Further, if an attempt is made to secure an arrangement space for the power conversion unit 5 when the ratio h1 / h2 is 2 or less, or to improve the light distribution characteristics when the ratio is 4 or more, as a result, the LED lighting device is used. It will lead to the increase in size of A3.

The fact that the ratio d1 / h1 is 0.65 means that the height to the lower surface of the LED module 20 (light emitting surface of the LED chip 22) is kept low even though the power conversion unit 5 is relatively bulky. Means that. If this ratio d1 / h1 is 1/2 or less, the total height ht of the LED lighting device A3 becomes unreasonably high as a result.

Since the height h3 of the mount 1 is 0.75 times the total height ht, it gives the impression that a considerable part of the LED lighting device A3 is covered by the mount 1. Further, in the present embodiment, the crossing angle α1 is set to 40 degrees or less. As a result, the LED lighting device A3 has a very small step, and the step is inconspicuous, which gives the impression that the LED lighting device is smooth and clean.

Since the cover 4 has a portion having a shape corresponding to a part of the ellipse, the total height ht and the height h2 can be reduced. The fact that the cover 4 is attached to the bracket 32 at a position closer to the ceiling than the LED module 20 is suitable for suppressing the amount of protrusion of the cover 4, and is preferable for reducing the total height ht and the height h2. Further, since the substrate 31 is fitted in the recess 321a, the height h1 can be reduced.

By accommodating the power conversion unit 5 in the bracket 32 on the ceiling side of the LED module 20, the LED unit 2 can be made into an elongated and compact cross-sectional shape. This has the advantage that the shape of the mount 1 that supports the LED unit 2 can be determined relatively freely.

FIG. 20 shows an LED lighting device based on the fourth embodiment of the present invention. The LED lighting device A4 of the present embodiment is different from the above-described embodiment in that it includes the adjusting member according to the present invention, and the other configurations are the same as those of the above-mentioned LED lighting device A3, and the description thereof is omitted as appropriate. do.

The mount 1 is a support for holding the LED unit 2, and includes a main body 10 and a plurality of holders 11. The main body 10 includes a base plate (first member) 110, a wing portion (second member) 120, and as shown in FIG. 21, a screw 131, a screw 132, and a washer 141. The screw 131 connects the base plate 110 and the wing portion 120, and is an example of the connecting means according to the present invention. The screw 132 is used to attach the base plate 110 to the wall surface W, and is an example of the attachment means according to the present invention. The wall surface W is, for example, a ceiling surface, and is formed so as to be perpendicular to the z direction as a whole. The washer 141 is installed as needed when the base plate 110 is attached to the wall surface W, and is an example of the adjusting member according to the present invention.

The base plate 110 is formed in an elongated plate shape with the x direction as the longitudinal direction and the y direction as the width direction, and has a mounting surface 110a, a plurality of bulging portions 111, and a plurality of screw holes 112 (for ceiling mounting). I have. Both end edges of the base plate 110 in the y direction are bent downward in the z direction to ensure rigidity. The mounting surface 110a is a flat surface perpendicular to the z direction, and is provided on the upper side in the z direction. The plurality of bulging portions 111 are portions formed so as to project downward in the z direction, and are arranged so as to be separated from each other along the x direction. Each bulging portion 111 is formed with a screw hole 111a penetrating in the z direction (for wing connection). Inside the screw hole 111a, a female screw corresponding to the screw (connecting means) 131 is formed. Considering that the base plate 110 is elongated in the x direction, the bulging portions 111 are arranged near both ends and the center of the base plate 110 in the x direction, respectively.

The screw holes 112 are formed near both ends of the base plate 110 in the x direction. These screw holes 112 penetrate the base plate 110 in the z direction and are formed so as to allow a portion other than the head of the screw 132 to be inserted therethrough. In the present embodiment, each screw hole 112 is formed at a position closer to the center in the x direction than the two screw holes 111a near both ends in the x direction, but the positional relationship between the screw hole 112 and the screw hole 111a is different. The opposite is also possible.

23 and 24 show the base plate 110 attached to the wall surface W. The wall surface W has a shape in which the left side in the figure is largely recessed in the z direction. As shown in FIG. 23, a washer 141 is attached to a screw 132 attached near the left end of the base plate 110. As is well shown in FIG. 24, the washer 141 is sandwiched between the mounting surface 110a and the wall surface W.

FIG. 22 shows a state in which the base plate 110 is attached to the wall surface W without using the washer 141 for comparison. According to FIG. 22, the vicinity of the left end of the base plate 110 in the x direction fits into the left recess of the wall surface W, and the base plate 110 is in an inclined state.

In FIGS. 22 and 23, the right end portion of the base plate 110'of another LED lighting device A4 installed adjacently in the x direction is displayed at the left end in the figure. The base plate 110'is attached to the wall surface W without being tilted.

A plurality of screw through holes 121a penetrating in the z direction are formed in the bottom plate portion 121 of the wing portion 120. Each screw through hole 121a is formed at a position overlapping with each screw hole 111a of the base plate 110 in the z-direction view. The base plate 110 and the wing portion 120 are connected by bringing the bulging portion 111 and the bottom plate portion 121 into contact with each other and screwing each screw 131 into each screw through hole 121a and each screw hole 111a.

Next, a process of attaching the LED lighting device A4 to the wall surface W will be described.

When the LED lighting device A4 is attached to the wall surface W, the base plate 110, the wing portion 120, and the LED unit 2 are separated in advance. Then, first, a step of attaching the base plate 110 to the wall surface W is performed. Next, a step of connecting the wing portion 120 to the base plate 110 is performed. After that, a step of attaching the LED unit 2 to the recess 10a of the wing portion 120 is performed.

In the step of attaching the base plate 110 to the wall surface W, first, the base plate 110 is pressed against the wall surface W without sandwiching the washer 141 between the mounting surface 110a and the wall surface W, and it is inspected whether or not the washer is tilted. This inspection can be performed, for example, by visual comparison with the base plate 110'.

If it is determined in the above inspection that the base plate 110 is not tilted, the base plate 110 is fixed to the wall surface W using two screws 132 without sandwiching the washer 141. On the other hand, if it is determined in the above inspection that the base plate 110 is tilted, the washer 141 is sandwiched between the mounting surface 110a and the wall surface W, and the above inspection is performed again. The washer 141 is installed so as to overlap the screw hole 112 near the left end in the x direction. When the right side in the x direction is recessed contrary to the wall surface W in FIG. 23, the washer 141 is installed so as to overlap the screw hole 112 near the right end in the x direction. By repeating the work of sandwiching the washer 141 and the inspection, the inclination of the base plate 110 can be corrected. After that, the base plate 110 is fixed to the wall surface W using screws 132.

The step of connecting the wing portion 120 to the base plate 110 is performed by passing the screw 131 through the screw through hole 121a and then screwing it into the screw hole 111a.

The step of attaching the LED unit 2 to the recess 10a is performed by pushing the LED unit 2 between the pair of locking pieces 11a of the holder 11. In this way, the flexible portion 11b slightly bends, so that the pair of locking pieces 11a are once separated from each other. After that, as shown in FIG. 20, the LED unit 2 is immovably fixed in the recess 10a in the y and z directions by engaging the locking piece 11a with the locking groove 323 of the support member 3.

Next, the operation of the LED lighting device A4 will be described.

According to the present embodiment, when the base plate 110 is attached to the wall surface W as described above, the position of the base plate 110 in the z direction can be adjusted by using the washer 141. Therefore, as shown in FIG. 23, the base plate 110 can be attached to the wall surface W having a dent so as not to be tilted. Further, by adjusting the number of washers 141, it is possible to cope with the case where the dent is large or small.

According to the present embodiment, the base plate 110 and the wing portion 120 are connected by screws 131 at at least three locations near both ends and the center in the x direction, and do not move to each other after being connected. Further, the LED unit 2 is fixed to the recess 10a so as not to be movable in the y and z directions. Therefore, if the base plate 110 is attached to the wall surface W so as not to be inclined, the wing portion 120 and the LED unit 2 attached under the base plate 110 are also kept horizontal without being inclined. Therefore, the LED lighting device A4 of the present embodiment can be installed with good appearance even when the ceiling has a dent. Further, even when a plurality of LED lighting devices A4 are installed side by side, it is possible to prevent a situation in which some of the LED lighting devices A4 are tilted, and it is possible to maintain the aesthetic appearance.

In the LED lighting device A4, as shown in FIG. 25, a spring 142 can be used as an adjusting member instead of the washer 141. The spring 142 can be expanded and contracted in the z direction, and is an example of an elastic member according to the present invention. The spring 142 is arranged so that the upper end in the z direction is in contact with the recessed portion of the wall surface W and the lower end in the z direction is in contact with the mounting surface 110a. The spring 142 is sandwiched between the wall surface W and the mounting surface 110a in a state of being shrunk from the natural state, and functions to appropriately separate the two. Such a spring 142 is preferably used, for example, when the wall surface W is recessed to a certain extent where a large number of washers 141 need to be attached.

In FIG. 25, the spring 142 is arranged so as to surround the screw 132 because it is more preferable to prevent the spring 142 from falling off, but it may be installed at another position. Since the spring 142 is stretched between the wall surface W and the mounting surface 110a, it is difficult for the spring 142 to fall off from between the wall surface W and the mounting surface 110a even if it is not hooked on the screw 132. Therefore, the spring 142 can be installed relatively freely, and is effective in the adjustment work when the unevenness of the wall surface W is complicated.

26 to 28 show another adjusting member that can be used in the LED lighting device A4. 26 and 28 show how the base plate 110 is attached to the wall surface W'shaped so that the left side in the x direction bulges. The base plate 110 shown in FIGS. 26 to 28 includes a laminated body 143 as an adjusting member.

As shown in FIGS. 26 and 27, the laminated body 143 is composed of a plurality of seals 144 laminated on the mounting surface 110a so that they can be peeled off in order from the top. The seal 144 is an example of the film-like member according to the present invention. The laminated body 143 is installed near both ends and near the center in the x direction, for example.

FIG. 26 shows a state in which the base plate 110 is pressed against the wall surface W'with the seal 144 not peeled off at all.

FIG. 28 shows the base plate 110 attached to the wall surface W'after performing the adjustment work. The adjustment work in the laminated body 143 is performed by peeling off the seal 144 instead of adding the washer 141. According to FIG. 28, all the seals 144 of the laminated body 143 near the left end in the x direction of the base plate 110 have been peeled off, and the seal 144 of the laminated body 143 near the center has been partially peeled off.

In the above embodiment, any one of the washer 141, the spring 142, and the laminated body 143 is installed between the base plate 110 and the wall surfaces W, W', but the washer is installed between the base plate 110 and the wing portion 120. The effect of the present invention can be obtained even when any of 141, the spring 142, and the laminated body 143 is installed. For example, FIG. 29 shows a base plate 110 attached to a wall surface W ″ with an uneven surface and an inclined wall surface, and a wing portion 120 connected to the base plate 110 with a washer 141 sandwiched between them. .. In FIG. 29, the base plate 110 is attached while being inclined so as to go upward toward the right in the figure along the inclination of the wall surface W ″. However, the washer 141 is sandwiched between the bulging portion 111 at the right end in the x direction and the bottom plate portion 121, and as a result, the wing portion 120 is connected to the base plate 110 without being inclined.

Although the washer 141 is used in FIG. 29, a spring 142 or a laminated body 143 may be used. When the laminated body 143 is used, the laminated body 143 is installed in the bulging portion 111.

30 to 32 show an LED lighting device based on the fifth embodiment of the present invention. In the LED lighting device A5 of the present embodiment, the configuration of the mount 1 is different from that of the above-described embodiment. In this embodiment, the mount 1 includes two base metal fittings 150 and two holders 11. In FIG. 31, the screw 132 is omitted for convenience of understanding. Further, the configuration of the mount 1 in the present embodiment is also applicable to the above-mentioned LED lighting devices A1 and A3.

The holder 11 is the same as that used for the LED lighting devices A1, A3, and A4. The locking piece 11a of the holder 11 is engaged with the locking groove 323 of the LED unit 2. The locking groove 323 extends in the x direction and is formed over almost the entire length of the LED unit 2. Therefore, the LED unit 2 can slide in the x direction with respect to the holder 11.

Each base metal fitting 150 is directly attached to a wall surface W such as a ceiling, and has a raised portion 150a and two extending portions 150b. The base metal fitting 150 is formed by, for example, drilling and bending a metal plate. The raised portion 150a is a portion separated from the wall surface W by a step, and the holder 11 is attached to the raised portion 150a.

The two extending portions 150b extend in the y direction with the raised portion 150a interposed therebetween. A screw hole 112 is formed in each extending portion 150b. The screw hole 112 is for inserting the screw 132, and has an elongated hole-shaped portion 112a and a recessed portion 112b. In the present embodiment, the elongated hole-shaped portion 112a has the y direction as the major axis direction. In order to achieve the effect intended by the present invention described later, the long axis direction of the elongated hole-shaped portion 112a may be perpendicular to the z direction and different from the x direction. The concave portion 112b is a portion recessed in the x direction from the center of the elongated hole-shaped portion 112a.

In the present embodiment, each base metal fitting 150 is provided with two screw holes 112 so as to sandwich the LED unit 2. Further, as shown in FIG. 31, the two base metal fittings 150 and the holder 11 are arranged apart from each other in the x direction.

Next, fine adjustment of the position of the LED lighting device A5 will be described below with reference to FIGS. 33 to 35.

First, FIG. 33 shows a state in which the two base metal fittings 150 are fixed by screws 132. At this time, each screw 132 is located in the recess 112b. In this state, the position in the y direction with the adjacent LED lighting device A5 (not shown) is checked.

When it is found that the position in the y direction is deviated from the adjacent LED lighting device A5, the screw 132 is loosened and the LED lighting device A5 is moved to the left in the x direction as shown in FIG. 34. As a result, each screw 132 moves from the recess 112b into the elongated hole 112a. In this state, the LED lighting device A5 can be moved in the y direction by the amount obtained by removing the diameter of the screw 132 from the length of the elongated hole-shaped portion 112a.

Next, as shown in FIG. 35, the LED lighting device A5 is shifted in the y direction. This figure shows an operation of moving the LED lighting device A5 to the lower side of the paper surface because the position of the LED lighting device A5 is shifted to the upper side of the paper surface. After confirming that the y-direction position of the LED lighting device A5 coincides with the adjacent LED lighting device A5, the screw 132 is fastened. From the above, the position adjustment of the LED lighting device A5 is completed.

Next, the operation of the LED lighting device A5 will be described.

According to the present embodiment, after the LED lighting device A5 is attached, for example, the deviation in the y direction from the adjacent LED lighting device A5 can be easily eliminated. It is not necessary to remove the LED unit 2 to perform this adjustment work. With respect to one base metal fitting 150, the two screw holes 112 are arranged apart from each other in the y direction with the LED unit 2 interposed therebetween, so that the base metal fitting 150 and the LED unit 2 can be stably fixed to the wall surface W. Can be done.

Further, the two separate base metal fittings 150 are arranged apart from each other in the x direction. As a result, the two base metal fittings 150 can be moved separately from each other within the range of, for example, the gap between the screw hole 112 and the screw 132, or the play of the holder 11 and the LED unit 2. As a result, for example, the work of loosening the screw 132 that fastens one base metal fitting 150 and finely adjusting the position of the base metal fitting 150 is less likely to be hindered by the other base metal fitting 150 that remains fixed. This is suitable for easily performing the position adjustment work of the LED lighting device A5.

Since the LED unit 2 can slide in the x direction with respect to the holder 11, the position of the LED unit 2 in the x direction can be adjusted very easily. That is, by performing the position adjustment in the x direction using the slide in addition to the position adjustment in the y direction using the screw hole 112, for example, the LED units 2 of the plurality of LED lighting devices A5 arranged in series with each other are connected to each other. The positions of the x and y directions can be adjusted appropriately.

Prior to the above-mentioned position adjustment, when the LED lighting device A5 is attached to the wall surface W, the screw 132 is positioned in the recess 112b. This makes it possible to prevent the base metal fitting 150 from being unreasonably displaced in the y direction with respect to the screw 132 in the mounting work. Since the concave portion 112b and the elongated hole-shaped portion 112a are connected, the position adjustment work in the y direction can be started quickly by locating the screw 132 in the elongated hole-shaped portion 112a according to the procedure shown in FIG. can.

FIG. 36 shows a modified example in which the screw hole 112 having the elongated hole-shaped portion 112a and the recessed portion 112b is applied. The base plate 110 shown in this figure has the same configuration as the base plate used in the LED lighting device A4 shown in FIG. 20. In the base plate 110 of this modification, three screw holes 112 are arranged apart from each other in the x direction. Even with such a modification, the position of the LED lighting device A5 can be appropriately adjusted.

37 to 39 show an LED lighting device based on the sixth embodiment of the present invention. The LED lighting device A6 of the present embodiment mainly differs from the LED lighting device A3 described above in the shape and installation position of the holder 11, but the other configurations are the same as those of the LED lighting device A3, and the description thereof is omitted as appropriate. do. In FIG. 39, the base plate 110 and the wing portion 120 are omitted for simplification. Further, the configuration of the holder 11 in the present embodiment is also applicable to the above-mentioned LED lighting devices A1 and A5.

As shown in FIG. 38, the holder 11 in the LED lighting device A6 has a notch portion 11c formed in each of the pair of locking pieces 11a, and the other configurations are the same as those of the holder 11 shown in FIG. ing. Each notch portion 11c is formed so as to fit with the head portion of the screw 33. However, the length of the notch portion 11c in the x direction is formed so as to be slightly larger than the diameter of the head portion of the screw 33.

As described with reference to FIGS. 4 and 6, the screw 33 connects the base portion 321 of the bracket 32 and the outer portion 322. Further, the screw 33 is fitted into the notch 51a of the case 1 of the power conversion unit 5 to fix the power conversion unit 5 to the bracket 32.

As shown in FIG. 39, the head portion of the screw 33 is fitted into the notched portion 11c of the holder 11. In this embodiment, two screws 33 are fitted to one holder 11. As a result, the position of the central portion of the holder 11 in the x direction coincides with the position of the screw 33 in the x direction when the LED unit 2 is properly installed.

Further, a plurality of screws 33 are attached to the bracket 32. Two of these screws 33 are arranged as a set on both sides in the y direction at the same position in the x direction, and a plurality of sets of screws 33 are arranged apart from each other in the x direction. The LED lighting device A6 is provided with a plurality of holders 11 so as to correspond to the arrangement of these screws 33.

Next, the operation of the LED lighting device A6 will be described.

According to the present embodiment, the head portion of the screw 33 is fitted to the pair of notch portions 11c, so that the LED unit 2 is fixed to the wing portion 120 so as not to be movable in the x direction. Therefore, even if the support 1 is tilted, for example, when the LED lighting device A6 is mounted on the ceiling, there is no possibility that the LED unit 2 will slip along the x direction. Therefore, it is possible to prevent the LED unit 2 from falling off when and after mounting the LED lighting device A6 on the ceiling.

In the above embodiment, the number and arrangement of the plurality of screws 33 and the plurality of holders 11 correspond to each other, but one notch portion 11c of one holder 11 is fitted with one screw 33. Then, the effect of the present invention can be obtained. In this case, the holder 11 shown in FIG. 9 may be used as the holder 11 installed at a position that does not overlap with the screw 33 in the x direction.

FIG. 40 shows a modified example of the LED lighting device A6. In FIG. 40, the base plate 110 and the wing portion 120 are omitted for simplification. In the LED lighting device A6 shown in FIG. 40, two screws 33 are arranged so as to sandwich one holder 11 from the left and right in the x direction. The holder 11 is the same as that shown in FIG.

Even in such an LED lighting device A6, since the holder 11 is sandwiched between the two screws 33, the LED unit 2 cannot be moved in the x direction. Therefore, such an LED lighting device A6 can also prevent the LED unit 2 from falling off when and after being mounted on the ceiling.

FIG. 41 shows another modification of the LED lighting device A6. In FIG. 41, the base plate 110 and the wing portion 120 are omitted for simplification. In the LED lighting device A6 shown in FIG. 41, a pair of holders 11 support the vicinity of both ends of the LED unit 2 in the x direction. The holder 11 in this embodiment is the same as that shown in FIG.

According to FIG. 41, a screw 33 is provided so as to be adjacent to the left end of the holder 11 on the left side in the x direction. Further, a screw 33 is provided so as to be adjacent to the right end of the holder 11 on the right side in the x direction.

Even in such an LED lighting device A6, a pair of holders 11 are sandwiched in the x direction by two screws 33 arranged on the left and right in the x direction, so that the LED unit 2 does not move in the x direction. There is. Therefore, the LED unit 2 is less likely to fall off when and after the LED lighting device A6 is attached to the ceiling.

42 and 43 show an LED lighting device based on the seventh embodiment of the present invention. The LED lighting device A7 of the present embodiment is different from the above-mentioned LED lighting device A3 mainly in the configuration of the mount 1, particularly the structure for fixing the LED unit 2, but the other configurations are the LED lighting device A3. The same applies, and the description thereof will be omitted as appropriate. The configuration for fixing the LED unit 2 in the present embodiment is also applicable to the above-mentioned LED lighting devices A1 and A5.

In the present embodiment, the holder 13 which is an elastic member is arranged on one side of the recess 10a in the y direction, and the regulating member 125 is formed on the other side. The regulating member 125 has a plate shape protruding from the wall portion 122 in the y direction, and is perpendicular to the wall portion 122. The regulating member 125 is installed, for example, over a substantially total length of the wing portion 120 in the x direction.

The holder 13 is formed by, for example, bending a metal plate, and has a locking piece 13a, a flexible portion 13b, and a fixing portion 13c. As shown in FIG. 43, the locking piece 13a is inclined so as to move away from the bottom plate portion 121 in the z direction and away from the LED unit 2 in the y direction. The flexible portion 13b is inclined so as to be closer to the LED unit 2 in the y direction as the distance from the bottom plate portion 121 in the z direction increases. The flexible portion 13b has a shape in which one end supports the locking piece 13a and the other end is connected to the fixed portion 13c, and is formed so as to be elastically bendable and deformable. The fixing portion 13c is a plate-shaped member provided so as to overlap the bottom plate portion 121, and is fixed to the wing portion 120 via a screw 131. A plurality of the holders 13 are installed so as to be lined up along the x direction.

The outer portion 322 of the LED unit 2 is formed with a convex portion 323A protruding in the y direction. A locking groove 323 (for fixing) is formed in the convex portion 323A. The outer portion 322 on the right side and the outer portion 322 on the left side in the y direction have the same parts arranged in opposite directions, and are line-symmetrical on the left and right sides. As shown in FIG. 43, the convex portion 323A on the right side in the drawing is engaged with the regulating member 125. Further, the locking piece 13a is engaged with the locking groove 323 provided in the convex portion 323A on the left side in the drawing.

When fixing the LED unit 2 to the wing portion 120, first, as shown in FIG. 44, the LED unit 2 is fitted into the recess 10a. At this time, the support member 3 tries to push the locking piece 13a of the holder 13 outward in the y direction. This force elastically deforms the flexible portion 13b. When the LED unit 2 is pushed into the recess 10a, the state shown in FIG. 45 is obtained. At this time, the locking piece 13a of the holder 13 fits into the locking groove 323. After that, when the holder 13 is deformed to return to its original shape, the LED unit 2 moves to the right in the y direction until it comes into contact with the regulating member 125. At this time, the convex portion 323A is locked to the regulating member 125.

FIG. 46 shows how the LED unit 2 is removed from the wing portion 120. As is often shown in this figure, first, a removal jig D having a U-shaped cross section is prepared. Then, the left edge of the removal jig D is pressed against the locking piece 13a of the holder 13. Then, the flexible portion 13b is elastically deformed, and the locking piece 13a retracts to the left in the figure. As a result, the engagement state between the locking piece 13a and the locking groove 323 is released. Further, by moving the LED unit 2 to the left in the y direction, the engagement state between the regulating member 125 and the convex portion 323A is also released. In this way, the LED lighting device A7 can easily remove the LED unit 2 from the wing portion 120.

Next, the operation of the LED lighting device A7 will be described.

According to the present embodiment, in the recess 10a, the LED unit 2 is always pressed against the regulating member 125 by the elastic force of the holder 13. Therefore, the position of the LED unit 2 in the y direction is determined by the regulating member 125. Therefore, the position of the LED unit 2 in the y direction can be set accurately. Further, according to the present embodiment, since the convex portion 323A is locked to the regulating member 125, the position of the LED unit 2 in the recess 10a in the z direction is also determined by the regulating member 125. As described above, for example, when a large number of LED lighting devices A7 are provided on the ceiling, it is possible to prevent the LED units 2 from being separated from each other in the y-direction position and the z-direction position, and the appearance thereof can be improved.

FIG. 47 shows an LED lighting device based on the eighth embodiment of the present invention. The LED lighting device A8 shown in FIG. 47 mainly differs from the LED lighting device A3 described above in the structure of the base plate 110, but the other configurations are the same as those of the LED lighting device A3, and the description thereof will be omitted as appropriate. The configuration of the base plate 110 in this embodiment is also applicable to the LED lighting devices A1 and A5 described above.

In the present embodiment, the base plate 110 includes an elongated elongated plate portion 113 extending in the x direction, plate-shaped members 114 and 115 extending downward in the z direction from both ends of the elongated plate portion 113 in the y direction, and two plate-shaped members. It is equipped with 114b. As is well shown in FIG. 48, the base plate 110 is formed with two notches 114a that are spaced apart in the x direction. Each notch portion 114a has a predetermined length in the x direction, extends over the entire length of the plate-shaped member 114 in the z direction, and is formed so as to cut the long plate portion 113 in the y direction. The pair of plate-shaped members 114b protrudes downward in the z direction from the y-direction end of each notch 114a, and are formed so as to overlap each other in the x-direction view.

As shown in FIG. 49, the end portion of the long plate portion 113, the plate-shaped member 114, and the pair of plate-shaped members 114b form a pair of light-shielding portions 116 that surround the hollow portion 116a in the x-direction view (yz plane). Is forming. The base plate 110 is separated from each other in the x direction, and is provided with two hollow portions 116a and two light-shielding portions 116 arranged from both ends of the base plate 110 in particular.

FIG. 48 shows a state in which the base plate 110 on the left side in the figure is installed in accordance with the base plate 110'on the right side in the figure which has already been installed on the ceiling. The base plate 110'is properly arranged so that its longitudinal direction is along the x direction. When the base plate 110 is installed on the ceiling, the position of the base plate 110 in the y direction is inspected by using the laser beam Lx traveling along the x direction. The laser beam Lx is set so as to pass between each plate-shaped member 114b of the base plate 110'and the plate-shaped member 114 in the y direction.

When the position of the base plate 110 in the y direction coincides with the position of the base plate 110'in the y direction, the laser beam Lx is emitted between each plate-shaped member 114b of the base plate 110 and the plate-shaped member 114, that is, It passes through the cavity portion 116a. On the contrary, when the laser light Lx does not pass between the plate-shaped member 114b of one or both of the base plates 110 and the plate-shaped member 114, the laser light Lx is blocked by the light-shielding portion 116. As a result, it can be determined that the position of the base plate 110 in the y direction deviates from the proper position.

Next, the operation of the LED lighting device A8 will be described below.

According to such an embodiment, the position of the base plate 110 in the y direction can be made appropriate by adjusting the position of the base plate 110 in the y direction so that the laser beam Lx passes through both cavity portions 116a. can. Such adjustment is performed, for example, by moving the base plate 110 in the y direction and visually confirming whether the laser beam Lx passes between both plate-shaped members 114b and the plate-shaped members 114. According to such adjustment, the laser beam Lx is blocked by the light-shielding portion 116 before and after the proper position, so that the proper position of the base plate 110 can be found relatively easily. Therefore, when a plurality of LED lighting devices A8 are installed on the ceiling, the positions of the base plates 110 in the y direction can be aligned relatively easily. Therefore, the positions of the wing portion 120 and the LED unit 2 mounted under the base plate 110 are also aligned, and the appearance of the plurality of LED lighting devices A8 mounted on the ceiling is improved.

50 to 52 show modified examples of the light-shielding portion 116, respectively.

The base plate 110 shown in FIG. 50 is provided with a plate-shaped member 114c protruding to the left in the y direction at the lower end of the plate-shaped member 114b. The left end portion of the long plate portion 113, the plate-shaped member 114, the plate-shaped member 114b, and the plate-shaped member 114c form a light-shielding portion 116 that surrounds the hollow portion 116a in the x-direction view (yz plane).

According to such a modification, in addition to the above-mentioned position adjustment in the y direction, the position adjustment in the z direction can be performed by the same method.

The base plate 110 shown in FIG. 51 is provided with a light-shielding portion 116 that protrudes downward from the long plate portion 113 and is formed so as to form a substantially annular shape surrounding the cavity portion 116a in the x-direction view. Such a light-shielding portion 116 also has the same effect as the light-shielding portion 116 shown in FIG.

The base plate 110 shown in FIG. 52 is provided with a light-shielding portion 116 having a hole portion 116b corresponding to the hollow portion 116a. The light-shielding portion 116 is provided at one end of the base plate 110 in the x direction. Separately from this, another light-shielding portion 116 is provided at the other end in the x direction (not shown). The positions of these light-shielding portions 116 in the y-direction coincide with each other. The light-shielding portion 116 is formed relatively easily, for example, by bending a plate piece protruding in the x direction from the long plate portion 113.

Since the light-shielding portions 116 shown in FIG. 52 are provided at both ends of the base plate 110 in the x-direction, the positions of the base plate 110 in the y-z directions can be adjusted more accurately than the light-shielding portions 116 shown in FIGS. 50 and 51. It can be performed. Moreover, it can be formed relatively easily.

FIG. 53 shows an LED lighting device based on the ninth embodiment of the present invention. The LED lighting device A9 of the present embodiment mainly differs from the LED lighting device A7 described above in the structure of the cover 4, but the other configurations are the same as those of the LED lighting device A7, and the description thereof will be omitted as appropriate. The configuration of the cover 4 in the present embodiment and the modified example is also applicable to the above-mentioned LED lighting devices A1, A3, and A5.

FIG. 54 shows an enlarged cross-sectional view of the cover 4 of the LED lighting device A9. The cover 4 shown in this figure is formed so that the central portion 43 is thicker than the periphery thereof, but other configurations are the same as those of the covers 4 in the LED lighting devices A1 to A8. As described in the description of the cover 4 in the LED lighting device A1, the cover 4 is a diffusion cover made of, for example, a milky white resin that transmits light from the LED module 20 while diffusing it. The central portion 43 is a region centered directly below the LED chip 22 in the z direction and having a constant width in the y direction. The width of the central portion 43 in the y direction is formed to be longer than the width of the LED module 20 in the y direction. The central portion 43 corresponds to an example of the strong diffusion portion referred to in the present invention.

In such a cover 4, the thicker the portion is formed, the more the light is diffused, and the light transmittance is lowered. Therefore, the light transmittance in the central portion 43 is smaller than that in the other regions. For example, the light transmittance in the central portion 43 is about 75%, and the light transmittance in the other regions is about 85%.

The cover 4 is formed so that the distance from the LED module 20 is the smallest in the central portion 43, and the distance from the central portion 43 in the y direction increases. Therefore, the intensity of the light from the LED module 20 reaching the central portion 43 is higher than the intensity of the light from the LED module 20 reaching the other region.

According to the LED lighting device A9, the light emitted from the central portion 43 and the light emitted from other regions are comparable to each other by reducing the light transmittance in the central portion 43 to which relatively strong light reaches. It becomes the strength of. Therefore, it is possible to suppress unevenness of the light emitted from the cover 4 when the LED lighting device A9 is lit, and it is possible to prevent the appearance of the individual LED modules 20 being arranged in dots. can do. Therefore, the appearance of the LED lighting device A9 at the time of lighting can be improved.

FIG. 55 shows a modified example of the cover 4. In the cover 4 shown in FIG. 55, the central portion 43 is formed in a flat plate shape. Even if such a cover 4 is used, it is possible to suppress unevenness of the light emitted from the cover 4.

FIG. 56 shows another modification of the cover 4. The cover 4 shown in FIG. 56 is formed so as to gradually increase in thickness from the end to the center in the y direction. Such a cover 4 becomes thicker as the distance from the LED module 20 is closer. This makes it possible to further suppress unevenness of the light emitted from the cover 4 when the LED lighting device A9 is lit. Therefore, the appearance of the LED lighting device A9 at the time of lighting can be improved.

FIG. 57 shows still another modification of the cover 4. The cover 4 shown in FIG. 57 has a constant thickness, and the central portion 43 is made of a milky white resin having a lower light transmittance than the other regions. The light transmittance in the region other than the central portion 43 of the cover 4 is about 85%, and the light transmittance in the central portion 43 is about 75%. Even if such a cover 4 is used, it is possible to suppress unevenness of the light emitted from the cover 4, similarly to the cover 4 shown in FIGS. 54 to 56.

FIG. 58 shows still another modification of the cover 4. The cover 4 shown in FIG. 58 has a constant thickness, and a diffusion member 44 is provided so as to overlap the central portion 43. The light transmittance in the portion of the cover 4 where the diffusion member 44 is not provided is about 85%. The diffusion member 44 is made of, for example, the same milky white resin as the cover 4, and is formed so that the light transmittance at the central portion 43 on which the diffusion members 44 are stacked is about 75%. Even if the cover 4 provided with such a diffusion member 44 is used, it is possible to suppress unevenness of the light emitted from the cover 4. Further, when the diffusion member 44 is prepared separately from the cover 4, there is an advantage that the cover 4 itself can be easily manufactured.

59 and 60 show an LED lighting device based on the tenth embodiment of the present invention. As shown in FIG. 59, the LED lighting device A10 of the present embodiment is composed of a base plate 110 attached to a horizontal wall surface W, a wing portion 120 attached to the base plate 110, and an LED unit 2 attached to the wing portion 120. ing. The structure of the base plate 110 of the LED lighting device A10 is different from that of the LED lighting device A7 described above, but the other configurations are the same as those of the LED lighting device A7, and the description thereof will be omitted as appropriate. The configuration of the base plate 110 in the present embodiment is also applicable to the LED lighting devices A1, A3, and A5 described above. 61 and 62 show a state in which the base plates 110 of the two LED lighting devices A10 arranged along the x direction are attached to the wall surface W. The wall surface W is, for example, a ceiling surface.

The base plate 110 of the present embodiment includes index portions 110b and 110c formed at both ends in the x direction, and a plurality of screw holes 112c arranged along the x direction. The index portions 110b, 110c and the plurality of screw holes 112c are all formed along the center line Cy passing through the center in the y direction of the base plate 110. The index portions 110b and 110c are notches formed in a wedge shape whose length in the y direction becomes shorter as the distance from the end portion of the base plate 110 along the x direction increases. The index portions 110b and 110c have a shape symmetrical with respect to the center line Cy, and the tip of the wedge shape is located at the center of the base plate 110 in the y direction.

The screw hole 112c is provided for passing the screw 132, and has a line-symmetrical shape with the center line Cy in the z-direction view. Further, as is well shown in FIG. 62, the screw hole 112c is integrally formed with the index portion 112d. The index unit 112d has a shape that is line-symmetrical with respect to the center line Cy, and has a wedge shape like the index units 110b and 110c.

Hereinafter, a process of attaching the base plate 110 of the two LED lighting devices A10 to the wall surface W will be described. The two base plates 110 may be sequentially attached to the wall surface W or may be attached at the same time.

First, a step of forming a linear index Lw extending along the x direction is performed on the wall surface W. The straight line index Lw can be formed by drawing a straight line on the wall surface W with, for example, an oil-based or water-based pen.

Next, as shown in FIG. 61, a step of attaching the base plate 110 to the wall surface W using the screws 132 is performed. In this step, first, as shown in FIG. 62, the base plate 110 is pressed against the wall surface W so that the linear index Lw can be seen from the index portions 110b, 110c and 112d. Next, the position of the base plate 110 in the y direction is adjusted so that the corner portions of the index portions 110b, 110c and 112d overlap with the linear index Lw. After that, as shown in FIG. 61, the base plate 110 is attached to the wall surface W by passing the screw 132 through the screw hole 112c and screwing it into the wall surface W.

In such an LED lighting device A10, the arrangement of the base plate 110 is adjusted so that the center line Cy coincides with the linear index Lw by aligning the index portions 110b, 110c and 112d with the linear index Lw as described above. It is possible. Therefore, when a plurality of base plates 110 are attached as shown in FIGS. 61 and 62, the orientations of the base plates 110 can be aligned. Therefore, when the plurality of LED lighting devices A10 are installed on the wall surface W, the directions of the plurality of LED lighting devices A10 are aligned, and the appearance is further improved.

FIG. 63 shows another embodiment of the index unit 110c. Not only the index unit 110c but also the index units 110b and 112d can have the same shape.

The index portion 110c shown in FIG. 63 is formed so that the shape in the z-direction becomes a larger wedge shape as the distance from the mounting surface 110a increases in the z-direction. Such a shape of the index unit 110c is designed so that when the LED lighting device A10 is mounted on the ceiling, the operator can easily confirm the overlap between the index unit 110c and the linear index Lw even from diagonally below.

64 to 66 show still another embodiment of the index units 110b and 110c. The index portions 110b and 110c shown in FIG. 64 are formed as convex portions protruding in the x direction from both ends of the base plate 110. The index portions 110b and 110c shown in FIG. 65 are drawn on both ends of the base plate 110 and have a linear shape. The index portions 110b and 110c shown in FIG. 66 are drawn at both ends of the base plate 110 and have a triangular shape.

FIG. 67 shows an LED lighting device based on the eleventh embodiment of the present invention. The LED lighting device A11 of the present embodiment mainly differs from the LED lighting device A7 described above in the configuration of the LED unit 2, but the other configurations are the same as those of the LED lighting device A7, and the description thereof will be omitted as appropriate. The configuration of the LED unit 2 in the present embodiment is also applicable to the above-mentioned LED lighting devices A1, A3, and A5. FIG. 68 shows a perspective view of a main part of the LED unit 2 of the LED lighting device A11, and FIG. 69 is a cross-sectional view showing a cross section of the main part shown in FIG. 68 in more detail. In addition to the configuration of the LED unit 2 shown in FIG. 4, the LED unit 2 shown in FIGS. 68 and 69 includes an illuminance confirmation LED chip 20a, a notification LED chip 20b, and a detection means 54. In FIG. 68, the electronic component 53 is omitted. Further, FIG. 70 shows a simplified block diagram of an example of wiring installed on the power supply board 52 and the board 31. According to FIG. 70, in the power supply board 52, in addition to the LED chip 20a for checking the illuminance and the detection means 54 already mentioned, the transformer T, the switches S1 and S2, and the voltage detection means for converting the AC voltage from the AC power supply E into a DC voltage. It includes 55, resistors 56a and 56b, and an adjusting resistor 57. The transformer T, the switches S1 and S2, the voltage detecting means 55, the resistors 56a and 56b, and the adjusting resistor 57 are included in the electronic component 53 of FIG. 69. Other configurations of the LED unit 2 shown in FIGS. 68 and 69 are the same as those of the LED unit 2 shown in FIG. 4, and the description thereof will be omitted as appropriate.

As shown in FIG. 69, the illuminance confirmation LED chip 20a is mounted on the power supply board 52 on the side opposite to the main emission direction of the LED module 20 in the z direction. Preferably, the LED chip 20a for checking the illuminance is installed in the center of the power supply board 52 in the x direction. The LED chip 20a for checking the illuminance has the same type as the LED chip 22, and is installed in parallel with each row of the plurality of LED chips 22 as shown in FIG. 70.

The detection means 54 includes, for example, a photoelectric conversion element such as a photodiode or a phototransistor that generates a voltage according to the received light. The detection means 54 is mounted on the side of the power supply board 52 opposite to the main emission direction of the LED module 20 in the z direction, and is separated from the illuminance confirmation LED chip 20a at the same position in the x direction and in the y direction. It is arranged like this. The detection means 54 receives light from the illuminance confirmation LED chip 20a and outputs a voltage corresponding to the illuminance to the voltage detection means 55.

As shown in FIG. 69, the U-shaped cross-section case 51 having a bottom in the z-direction is fitted into the accommodation space 32a formed by the U-shaped cross-section bracket 32 having a bottom in the lower z-direction. There is. Therefore, the inside of the case 51 is shielded from the outside in the yz plane.

The notification LED chip 20b is mounted on the substrate 31 and emits, for example, red light. The position of the notification LED chip 20b may be anywhere on the substrate 31. The notification LED chip 20b is turned on by receiving power supplied from the power supply board 52 when the switches S1 and S2 are ON. Further, a resistor 56b is installed in series with the notification LED chip 20b so that a large voltage is not applied to the notification LED chip 20b. The resistor 56b is formed so as to have the same resistance as that of, for example, 11 LED chips 22 connected in series.

The switch S1 is a switch for switching ON / OFF of a plurality of LED modules 20, and can be switched ON / OFF from the outside. According to FIG. 70, when the switch S1 is turned on, the LED chip 20a for checking the illuminance also lights up at the same time.

The resistor 56a is installed in series with the LED chip 20a for checking the illuminance. As described in the LED lighting device A1, the LED chips 22 are a set of 12 LED chips 22 connected in series with each other. The resistor 56a is provided so that the voltage applied to the illuminance confirmation LED chip 20a is about the same as the voltage applied to one LED chip 22, and is the same resistance as, for example, 11 LED chips 22 connected in series. Is formed to have. When a heat generating resistor is used as the resistor 56a, it should be installed at a position physically separated from the illuminance checking LED chip 20a so that the heat generated during driving does not easily affect the illuminance checking LED chip 20a. desirable.

The adjusting resistor 57 is installed in series with the illuminance confirmation LED chip 20a and the resistor 56a. The adjusting resistor 57 is provided to further adjust the voltage applied to the illuminance confirmation LED chip 20a. The power supply board 52 and the board 31 holding the LED chip 20a for checking the illuminance are both made of glass epoxy resin, but the board 31 is held by the aluminum base portion 321 and dissipates more heat than the power supply board 52. Excellent in function. Therefore, even when the same voltage as each LED chip 22 is applied to the illuminance confirmation LED chip 20a, the illuminance confirmation LED chip 20a has a higher temperature than each LED chip 22 due to the difference in heat dissipation. turn into. This causes a difference in the degree to which the characteristics of the two change. Therefore, in order to make the change speed of the illuminance confirmation LED chip 20a about the same as the change speed of the LED chip 22, it is necessary to adjust the voltage applied to the illuminance confirmation LED chip 20a. In consideration of the above points, the resistance value of the adjusting resistor 57 is adjusted so that the changing speed of the illuminance confirmation LED chip 20a is about the same as the changing speed of the LED chip 22.

The voltage detecting means 55 functions to turn on the switch S2 when the voltage output from the detecting means 54 falls below a predetermined voltage value. When the switch S1 is ON and the switch S2 is ON, power is supplied to the notification LED chip 20b. The above-mentioned predetermined voltage value is set to, for example, α% of the voltage value output by the detection means 54 according to the illuminance of the illuminance confirmation LED chip 20a immediately after the start of use (α <100).

In such an LED lighting device A11, as described above, the inside of the case 51 is in a state of being shielded from the outside. Therefore, the detection means 54 is not affected by the light from the outside and the light from the LED module 20. Therefore, the detection means 54 can detect only the light from the illuminance confirmation LED chip 20a and more accurately output the voltage corresponding to the illuminance of the illuminance confirmation LED chip 20a to the voltage detection means 55.

The LED chip 20a for checking the illuminance also changes at the same speed as the change of the LED chip 22. As the change of the illuminance confirmation LED chip 20a progresses, the amount of light received by the detecting means 54 gradually decreases, and the voltage detected by the voltage detecting means 55 decreases. Then, when the voltage detected by the voltage detecting means 55 becomes α% or less of the initial voltage, the switch S2 is turned on, and when the LED lighting device A11 is turned on, the notification LED chip 20b is turned on at the same time.

In this way, when the characteristics of the LED chip 22 change to the extent that the LED unit 2 needs to be replaced, the notification LED chip 20b lights up. As a result, the user can easily know that the LED unit 2 needs to be replaced. Therefore, in the LED lighting device A11, the LED unit 2 can be replaced at an appropriate time, and it is possible to always provide good-looking lighting.

Further, in the present embodiment, the LED module 20 emits white light, while the notification LED chip 20b emits red light. Therefore, when the notification LED chip 20b is turned on, the red light is visible and conspicuous, so that the user can easily notice that it is time to replace the LED chip 20b. The color of the notification LED chip 20b is not limited to red, and may be another color.

In the above LED lighting device A11, the change speed of the LED chip 20a for checking the illuminance is adjusted to the change speed of the LED chip 22 by providing the adjustment resistor 57, but it can be implemented even if the adjustment resistor 57 is not installed. Is. Even in this case, since the LED chip 20a for checking the illuminance lights up at the same time as the LED chip 22, the changing speed of the LED chip 20a for checking the illuminance is proportional to the changing speed of the LED chip 22. Therefore, by knowing the degree of change of the illuminance confirmation LED chip 20a by the detecting means 54, it is possible to estimate the degree of change of the LED chip 22. Therefore, for example, by adjusting the value of α to be lower than the above-mentioned value, it is possible to light the notification LED chip 20b when the LED chip 22 changes to the extent that it needs to be replaced.

Further, in the LED lighting device A11, the voltage applied to the illuminance confirmation LED chip 20a is matched with the voltage applied to each LED chip 22 by providing the resistor 56a, but for example, the illuminance confirmation LED without providing the resistor 56a. Twelve chips 20a may be connected in series.

FIG. 71 shows an LED lighting device based on the twelfth embodiment of the present invention. The LED lighting device A12 of the present embodiment mainly differs from the LED unit A3 described above in the configuration of the LED unit 2, but the other configurations are the same as those of the LED lighting device A3, and the description thereof will be omitted as appropriate. The configuration of the LED unit 2 in this embodiment is also applicable to the above-mentioned LED lighting devices A1 and A5. FIG. 72 shows a side view of a plurality of LED units 2 arranged along the x direction. The LED unit 2 shown in FIGS. 72 and 73 has a pair of connectors 34a and 34b and a pair of connectors 34a and 34b and a power supply board instead of the connector 34 and the wiring connected to the connector 34 in the LED unit 2 shown in FIG. The electric wire group 36 connecting to 52 is provided. Other configurations of the LED unit 2 shown in FIGS. 72 and 73 are the same as those of the LED unit 2 shown in FIG. 3, and the description thereof will be omitted as appropriate.

The electric wire group 36 includes a main electric wire 361 extending in the x direction and a connecting wire 362. The main electric wire 361 is a resin cable including a power line 361a for supplying electric power to the power supply board 52, and a signal line 361b for transmitting a signal instructing the power supply board 52 to turn on / off or adjust the brightness, for example. The main electric wire 361 may be used only for supplying electric power. As shown in FIG. 73, the main electric wire 361 is arranged in the lower right corner of the case 51. Both ends of the main wire 361 in the x direction project outward from both ends of the case 51 in the x direction. In FIG. 73, the connecting line 362 is a resin cable having a lower end connected to the main electric wire 361 and containing an electric wire extending from each of the power line 361a and the signal line 361b, for example. The upper end of the connecting line 362 in the figure is connected to the power supply board 52 via the connector 34c.

The connector 34a is formed of, for example, a resin in a rectangular parallelepiped shape having a recess in the center. Inside the recess provided in the connector 34a, electrodes connected to the power line 361a and the signal line 361b are provided, respectively. According to FIG. 72, the connector 34a is connected to the left end of the main electric wire 361 in the x direction. On the other hand, the connector 34b is made of resin, for example, and is formed so as to have a convex portion that fits into the concave portion of the connector 34a, and is connected to the right end in the x direction of the main electric wire 361. An electrode connected to the power line 361a and the signal line 361b is provided on the convex portion provided on the connector 34b. Further, according to FIG. 72, the connector 34a is fitted with the connector 34b connected to the right end of the main electric wire 361 of the adjacent LED unit 2.

When the LED units 2 are used alone without being arranged in the x direction, the connectors 34a and 34b are connected to, for example, a power supply source built in the ceiling. When a plurality of LED units 2 are used side by side in the x direction, one of the connectors 34a and 34b of the LED units 2 located at both ends in the x direction that is not used for connection with the other LED units 2 has electric power. Connected to the source.

In a fluorescent lamp or a conventional LED lighting device X, since it is used by being attached to a general-purpose fluorescent lamp lighting fixture installed in advance on the ceiling or the like, the electric wire is not exposed to the outside. On the other hand, in the LED lighting device A12, power is supplied to the LED unit 2 by the electric wire group 36. Unlike the present embodiment, if the electric wire group 36 is exposed to the outside, the appearance of the entire LED lighting device A12 is impaired. In the present embodiment, the electric wire group 36 is housed in the space surrounded by the case 51 and the base portion 321. Therefore, of the electric wire group 36, what can be seen from the outside is limited to the connection portion with the connectors 34a and 34b. Therefore, in the LED lighting device A12, the exposure of the electric wire group 36 to the outside is minimized, and it is possible to obtain a better-looking appearance.

Further, according to the present embodiment, since most of the electric wire group 36 is housed in the LED unit 2, when the LED unit 2 is attached to the mount 1 or the LED unit 2 is removed from the mount 1. It is less likely to interfere with work. Therefore, in the LED lighting device A12, the LED unit 2 can be easily and quickly replaced.

Further, when a plurality of LED lighting devices A12 are installed side by side in the x direction, by joining the connector 34a and the connector 34b as shown in FIG. 72, the adjacent LED units 2 can be connected to each other without providing a new electric wire. It can be easily electrically connected.

Further, according to the present embodiment, the main electric wire 361 is installed at a position relatively distant from the power supply board 52 and the electronic component 53 in the case 51. Therefore, it is possible to suppress the interference between the current flowing through the main electric wire 361 and the power supply board 52 and the electronic component 53.

FIG. 74 shows an LED lighting device based on the thirteenth embodiment of the present invention. The LED lighting device A13 of the present embodiment is different from the LED lighting device A12 described above mainly in the arrangement and holding means of the electric wire group 36, but the other configurations are the same as those of the LED lighting device A12, and the description thereof will be described as appropriate. Omit. The configuration of the LED unit 2 in this embodiment is also applicable to the above-mentioned LED lighting devices A1, A3, and A5. FIG. 75 shows a cross-sectional view of the LED unit 2 of the LED lighting device A13. The LED unit 2 shown in FIGS. 74 and 75 holds the electric wire group 36 by the holder 51b provided on the case 51, and a part of the base portion 321 is deformed. It is the same as the LED unit 2 shown in FIG. 73, and the description thereof will be omitted as appropriate.

The holder 51b is formed on the outer side of the upper part of FIG. 75 of the case 51, and is a metal fitting that sandwiches and fixes the main electric wire 361 with the upper part of the case 51. In this embodiment, a plurality of holders 51b are arranged along the x direction. The base portion 321 in the present embodiment is formed so that the upper end portion in the z direction is above the upper end portion of the holder 51b in the z direction. The connecting line 362 penetrates the upper part of the case 51 and is connected to the upper side of the power supply board 52 in the drawing via the connector 34c.

In such an LED lighting device A13 as well, like the LED lighting device A12, the electric wire group 36 is difficult to see from the outside, and it is possible to realize a more attractive appearance. Further, in the present embodiment, since the main electric wire 361 is arranged outside the case 51, it is possible to prevent the current flowing through the main electric wire 361 from interfering with the power supply board 52 and the electronic component 53.

FIG. 76 shows an LED lighting device based on the 14th embodiment of the present invention. The LED lighting device A14 of the present embodiment is different from the LED lighting device A12 described above in the configuration of the bracket 32 and the arrangement of the electric wire group 36, but the other configurations are the same as those of the LED lighting device A12. Omit. The configuration of the bracket 32 in this embodiment is also applicable to the above-mentioned LED lighting devices A1, A3, and A5. FIG. 77 shows a cross-sectional view of the LED unit 2 of the LED lighting device A14. In the LED unit 2 shown in FIGS. 76 and 77, the base portion 321 and the outer portion 322 are integrated, and the main electric wire 361 is housed in the recess 32b provided in the bracket 32. Other configurations are the same as those of the LED unit 2 shown in FIGS. 71 to 73, and the description thereof will be omitted as appropriate.

The bracket 32 in FIG. 77 has a shape in which the base portion 321 and the outer portion 322 in FIG. 73 are integrated. However, the edge of the outer portion 322 shown in FIG. 73 is formed so as to overlap the side edge of the substrate 31 in the z-direction view, but the bracket 32 in FIG. 77 has a shape in which the portion is cut off. The recess 32b is formed so as to be recessed in the y direction on the right side portion of the bracket 32 in FIG. 77. The connecting line 362 in FIG. 77 penetrates the right side portion in FIG. 77 of the case 51 and is connected to the lower side of the power supply board 52 via the connector 34c.

In such an LED lighting device A14 as well, like the LED lighting device A12, the electric wire group 36 is difficult to see from the outside, and it is possible to realize a more attractive appearance. Further, in the present embodiment, since the main electric wire 361 is arranged outside the case 51, it is possible to prevent the current flowing through the main electric wire 361 from interfering with the power supply board 52 and the electronic component 53.

FIG. 78 shows an LED lighting device based on the fifteenth embodiment of the present invention. The LED lighting device A15 of the present embodiment includes a holder 14 instead of the holder 11, but the other configurations are the same as those of the LED lighting device A3, and the description thereof will be omitted as appropriate. 79 shows a perspective view of the holder 14, and FIG. 80 shows a front view, a side view, and a plan view of the holder 14. The configuration of the holder 14 of the present embodiment is also applicable to the above-mentioned LED lighting devices A1 and A5.

Like the holder 11, the holder 14 is formed by, for example, bending a metal plate, and has a pair of locking pieces 14a, a pair of flexible portions 14b, a base portion 14c, and bending. It has a portion 14e and a bent portion 14f. The bent portions 14e and 14f are portions formed by bending the above-mentioned metal plate. In the holder 14, unlike the holder 11, a part of the metal plate is cut out before the bending process is performed. By this processing, a notch 14d is formed in the holder 14. Due to this notch 14d, the bent portion 14e is in a state of being divided in the x direction in FIG. 79. The length of the notch 14d in the x direction is set so that the length of the bent portion 14e in the x direction is the same as the length of the bent portion 14f in the x direction.

As shown in FIGS. 79 and 80, the base portion 14c supports a pair of flexible portions 14b via the bent portions 14e. The flexible portion 14b is shaped to support the locking piece 14a via the bent portion 14f. When an external force is applied, the pair of flexible portions 14b can be elastically deformed in a direction in which the pair of locking pieces 14a are brought close to each other and separated from each other. The pair of locking pieces 14a are portions that engage with the LED unit 2, and are inclined so that the distance between them becomes smaller toward the upper side in the figure in FIG. 80 (a). In this embodiment, a plurality of holders 14 are provided in the recess 10a. Each locking piece 14a is provided with a protruding portion 14g. The protruding portion 14g protrudes toward the base portion 14c in the inclined direction of the locking piece 14a. The protruding portion 14g is a portion where the locking piece 14a is directly locked to the locking groove 323 of the support member 3.

In the holder 11 shown in FIG. 9, the portion corresponding to the bent portion 14e in the holder 14 is longer than the portion corresponding to the bent portion 14f in the holder 14, and the rigidity is higher. Therefore, in the holder 11, the portion corresponding to the bent portion 14e in the holder 14 is less likely to bend than the portion corresponding to the bent portion 14f in the holder 14. As a result, when an external force is applied to the pair of flexible portions 11b, the portion of the holder 14 corresponding to the bent portion 14f is deformed relatively greatly, and this portion may be plastically deformed. Due to this, the direction of the LED unit 2 held by the holder 11 may be deviated, and there is a concern that the appearance may be deteriorated.

On the other hand, in the holder 14, the length of the bent portion 14e in the x direction is the same as the length of the bent portion 14f in the x direction due to the provision of the notch 14d. Therefore, there is no difference in deformability between the bent portion 14e and the bent portion 14f, and when an external force is applied to the pair of flexible portions 14b, the bent portion 14e and the bent portion 14f are uniformly deformed. .. Therefore, in the holder 14, there is little possibility that only one of the bent portion 14e and the bent portion 14f is excessively plastically deformed. Therefore, the holder 14 can stably hold the LED unit 2 for a longer period of time, and the LED lighting device A15 can maintain a more preferable appearance for a longer period of time.

In the holder 14 described above, the notch 14d is formed over both the flexible portion 14b and the base portion 14c, but it can also be implemented when it is formed only on either the flexible portion 14b or the base portion 14c. Is. Further, the present invention is also effective when only one locking piece 14a and one flexible portion 14b are provided as in the holder 13, for example.

81 to 85 show an LED lighting device based on the 16th embodiment of the present invention. As shown in FIGS. 81 and 82, the LED lighting device A16 of the present embodiment is L-shaped in a plan view and is line-symmetrical with respect to the center line Cxy inclined by 45 ° with respect to the x and y directions. Is formed in.

The mount 1 includes a first support 10A extending in the x direction, a second support 10B extending in the y direction, and a plurality of holders 11 attached to the first and second supports 10A and 10B in appropriate positions. It is composed of two caps 126. FIG. 86 shows a plan view, a side view, and a bottom view of the first support 10A.

The first support 10A is composed of a base plate 110 and a wing portion 120. The base plate 110 is formed in an elongated plate shape having the x direction as the longitudinal direction and the y direction as the width direction, and includes a plurality of screw holes 112. The wing portion 120 has a bottom plate portion 121, two wall portions 122, and two bow-shaped portions 123, and is made of opaque, for example, resin or aluminum. The bottom plate portion 121 is formed in an elongated plate shape wider than the base plate 110 in the z-direction view. In the present embodiment, the bottom plate portion 121 is integrated with the base plate 110. The two wall portions 122 stand upright in the z direction from both ends of the bottom plate portion 121 in the y direction. The bottom plate portion 121 and the two wall portions 122 form a recess 10a for accommodating the LED unit 2. The two bow-shaped portions 123 extend from the lower ends of the two wall portions 122 in the z direction and are arranged so as to sandwich the recess 10a. The bow-shaped portion 123 in the present embodiment has a flatter shape as compared with, for example, the bow-shaped portion 123 in the LED lighting device A3. Further, the upper bow-shaped portion 123 in FIG. 86 is formed so as to be longer than the lower bow-shaped portion 123. According to FIG. 86, the positions of the left ends of the upper and lower bow-shaped portions 123 are aligned, but the positions of the right ends are different. The right end of the upper bow-shaped portion 123 in FIG. 86 is located on the right side of the right end of the lower bow-shaped portion 123. The line connecting the right ends of the upper and lower bow-shaped portions 123 is inclined by 45 ° with respect to the longitudinal direction of the first support 10A.

The second support 10B has the upper and lower sides of the first support 10A interchanged in FIG. 86. As shown in FIG. 81, the shorter bow-shaped portion 123 in the second support 10B is in contact with the shorter bow-shaped portion 123 in the first support 10A. Further, the longer bow-shaped portion 123 of the second support 10B is in contact with the longer bow-shaped portion 123 of the first support 10A.

As shown in FIGS. 81 and 82, each cap 126 is a member that covers the ends of the first and second supports 10A and 10B that do not touch each other in the longitudinal direction. FIG. 91 shows a front view, a side view, and a plan view of the cap 126. The cap 126 has a plate portion 126a for fixing to the bottom plate portion 121.

According to FIG. 81, the LED unit 2 is attached to each of the first support 10A and the second support 10B. The LED unit 2 supported by the first support 10A forms a first light emitting portion 2A extending along the x direction, and the LED unit 2 supported by the second support 10B forms the first light emitting portion 2A along the y direction. A second light emitting unit 2B extending from the surface is formed. As shown in FIG. 83, each LED unit 2 includes a plurality of LED modules 20, a support member 3, a cover 4, and a power conversion unit 5. FIG. 84 shows an enlarged view of the intersection of the first and second light emitting portions 2A and 2B, and FIG. 85 shows the end portion of the second support 10B farther from the first support 10A. Is enlarged and shown. In FIGS. 84 and 85, a part or all of the cover 4 is omitted.

In this embodiment, as shown in FIGS. 83 to 85, the plurality of LED modules 20 are arranged so as to be arranged in two rows. Each LED module 20 is the same as that shown in FIG.

The support member 3 is for supporting a plurality of LED modules 20 and supplying electric power to the support member 3, and includes a substrate 31, a bracket 32, and caps 331 and 332.

In the present embodiment, as shown in FIG. 84, a wiring group 311 for electrically connecting the substrates 31 of the first and second light emitting units 2A and 2B is provided.

FIG. 87 shows a plan view and left and right side views of the bracket 32 of the second light emitting unit 2B. The left side view of the bracket 32 in FIG. 87 shows the left side surface in FIG. 84, and the right side view shows the right side side surface in FIG. 84. As shown in FIG. 87, one end face of the bracket 32 in the longitudinal direction is a plane orthogonal to the longitudinal direction, and the other end face is a plane inclined so as to project to the right in the figure toward the upper part of the figure. It has become. This inclined surface is inclined by 45 ° with respect to the longitudinal direction. The bracket 32 has a U-shaped cross section, and the substrate 31 is attached to the outside of the bottom surface thereof. Further, the bracket 32 has the same locking grooves 323, 324, and 325 as the bracket 32 of the LED lighting device A3.

Each substrate 31 is formed in an elongated rectangular shape extending long along the longitudinal direction of each bracket 32.

As shown in FIG. 85, the cap 331 is attached to the non-tilted end of each bracket 32 in the longitudinal direction. FIG. 89 shows a front view, a side view, and a front view showing a state before mounting of the cap 331. According to FIG. 89, the cap 331 has a pair of bendable plate portions 331a. The pair of plate portions 331a are formed so as to sandwich both side surfaces of the bracket 32 in a bent state. Further, a pair of plate portions 331a are formed with screw through holes, and can be fixed to both side surfaces of the bracket 32 by screws. The lower portion of the cap 331 in FIG. 89 has a shape corresponding to the end portion of the cover 4. The cap 331 covers the ends of each bracket 32 and the cover 4 to prevent the inside of the LED lighting device A16 from being seen from the outside.

As shown in FIG. 84, the cap 332 is attached to the end of each bracket 32 that is inclined in the longitudinal direction. FIG. 90 shows a front view, a side view, a plan view, and a front view showing a state before mounting of the cap 332. The front view in FIG. 90 is a front view seen from a direction orthogonal to the center line Cxy in FIG. 84, and the plan view is a view in the z direction. The cap 332 has a shape in which the cap 331 is stretched in a direction inclined by 45 °. The cap 332 has a pair of plate portions 332a and a hole portion 332b for passing the wiring group 311. The pair of plate portions 332a are formed so as to sandwich both side surfaces of the bracket 32 in a bent state. Further, a pair of plate portions 332a are formed with screw through holes, and can be fixed to both side surfaces of the bracket 32 by screws.

As shown in FIG. 81, the cover 4 of the LED unit 2 forming the first light emitting portion 2A is formed so that the left end portion in the drawing is inclined by 45 ° with respect to the x direction. FIG. 88 shows an enlarged side view of the inclined end portion. Other configurations of the cover 4 of the present embodiment are the same as those of the cover 4 in the LED lighting device A3. Such a cover 4 can be formed, for example, by cutting the cover 4 in the LED lighting device A3 so as to obtain a cut surface inclined by 45 ° with respect to the longitudinal direction. On the other hand, in the cover 4 of the LED unit 2 forming the second light emitting unit 2B, the upper end portion in FIG. 81 is inclined by 45 ° with respect to the y direction, and the cover 4 of the first light emitting unit 2A is covered. It is formed so as to face the inclined end face.

Each LED unit 2 of the first and second light emitting units 2A and 2B is provided with a power conversion unit 5. Each power conversion unit 5 is the same as that in the LED lighting device A3 except that the details of the case 51 are different. FIG. 92 shows a side view, a front view, and a plan view of the main part of the case 51 in the present embodiment, and FIG. 93 shows a developed view. The front view of the case 51 is a longitudinal view of each LED unit 2, and the plan view is a z-direction view. The case 51 is made of metal, for example, and has a U-shaped cross section. Further, the case 51 includes a plurality of notched portions 51a and folding portions 51c and 51d for holding the power supply board 52.

Next, the operation of the LED lighting device A16 will be described.

It is assumed that the LED lighting device A16 is mounted on the ceiling and used in the same manner as the LED lighting device A3, for example. As described above, since the LED lighting device A16 is L-shaped, it is suitable for installation along the corners of the ceiling, pillars, and the like.

When L-shaped lighting is required, for example, it is conceivable to prepare two conventional fluorescent lamps, LED lighting devices A3, and the like and arrange them in an L-shape. However, in such a case, the intersecting portion of the two fluorescent lamps or the LED lighting device A3 does not emit light, and further, it may give a complicated impression to what is seen and the appearance may be deteriorated. On the other hand, in the LED lighting device A16, as shown in FIG. 81, the intersecting portions of the first and second light emitting portions 2A and 2B are covered with the cover 4, which makes it difficult to give a complicated impression to the viewer. ing. Therefore, the LED lighting device A16 looks better than the case where the linear light sources are simply crossed in an L shape.

In the present embodiment, the substrates 31 in the first and second light emitting units 2A and 2B are electrically connected by the wiring group 311. Therefore, if there is only one external power source, both the first and second light emitting units 2A and 2B can be turned on.

In the present embodiment, the cap 332 is sandwiched between the covers 4 in the first and second light emitting portions 2A and 2B, but the covers 4 may come into contact with each other without the cap 332. I do not care. Alternatively, each cover 4 in the first and second light emitting units 2A and 2B may be integrated.

FIG. 94 shows an LED lighting device based on the 17th embodiment of the present invention. The LED lighting device A17 of the present embodiment has a shape of the end portion of the substrate 31 different from that of the LED lighting device A16, and other configurations are the same as those of the LED lighting device A16.

According to FIG. 94, the end portion of the substrate 31 of the present embodiment has a shape inclined along the inclination of the end portion of the bracket 32. That is, each substrate 31 of the present embodiment has an additional portion 31a having a triangular shape in a plan view added to the end portion of each substrate 31 shown in FIG. 84. As shown in FIG. 94, in each additional portion 31a, a plurality of LED modules 20 are arranged so as to be arranged along an arc and line-symmetrical with respect to the center line Cxy as an axis.

In the LED lighting device A17, since the plurality of LED modules 20 are arranged in the additional portion 31a provided at the L-shaped intersection portion, the L-shaped intersection portion also emits light. Therefore, the LED lighting device A17 does not reduce the amount of light at the intersection of the L-shapes, and can further improve the appearance at the time of lighting.

Further, in the present embodiment, since the LED module 20 of each additional portion 31a is line-symmetrical with the center line Cxy as the axis, it is possible to prevent one of the first and second light emitting portions 2A and 2B from being biased and brightened. It can be done and looks better.

FIG. 95 shows an LED lighting device based on the 18th embodiment of the present invention. The LED lighting device A18 of the present embodiment has a structure of an L-shaped intersection different from that of the LED lighting device A16, and other configurations are the same as those of the LED lighting device A16.

In the LED lighting device A18, an additional substrate 31b having a rectangular shape in a plan view is provided at the intersection of the L-shapes. The additional substrate 31b is supported by both brackets 32 extending in the x and y directions. In order to install the additional substrate 31b on the bracket 32, in the present embodiment, the cap 332 has a shape in which the lower half in FIG. 90A is removed. Further, although omitted in FIG. 95 for simplification, the additional substrate 31b is electrically connected to both substrates 31 by a wiring group.

A plurality of LED modules 20 are mounted on the additional board 31b. As shown in FIG. 95, for example, these LED modules 20 are arranged so as to be line-symmetrical with respect to the center line Cxy as an axis.

In such an LED lighting device A18, since the additional board 31b is installed at the L-shaped intersection and the LED module 20 is mounted on the additional board 31b, the L-shaped intersection also emits light. Therefore, the intersection of the L-shapes does not become dark, and the appearance can be further improved.

In the present embodiment, the additional substrate 31b is independent of both of the substrates 31, but the additional substrate 31b may be integrated with any of the substrates 31. Further, an L-shaped substrate in a plan view in which both substrates 31 and the additional substrate 31b are integrated may be used.

FIG. 96 shows an LED lighting device based on the 19th embodiment of the present invention. In the LED lighting device A19 of the present embodiment, instead of providing the additional board 31b, a board 31'longer than the board 31 is provided in the second light emitting unit 2B, and other configurations are the same as those of the LED lighting device A18. ..

In the present embodiment, for example, the plurality of LED modules 20 are arranged along the y direction over the entire length of the substrate 31'in the longitudinal direction. Even in such an LED lighting device A18, since the L-shaped intersecting portion emits light, it is possible to further improve the appearance.

97 to 102 show an LED lighting device based on the 20th embodiment of the present invention. The LED lighting device A20 of the present embodiment is described above in that the wing portion 120 includes a pair of outer covers 127, and the wing portion 120 is directly attached to the mounted surface Ro without the intervention of the base plate 110. Although it is mainly different from the LED lighting device, the other configurations are the same, and the description thereof will be omitted as appropriate. FIG. 97 shows a perspective view of a main part of the LED lighting device A20. FIG. 98 shows a cross-sectional view of the LED lighting device A20 shown in FIG. 97. 99 is a front view of the wing portion 120, FIG. 100 is a plan view of the wing portion 120, FIG. 101 is a side view of the wing portion, and FIG. 102 is a bottom view of the wing portion 120. The configuration including the outer cover 127 in the present embodiment is also applicable to all the above-mentioned LED lighting devices including the wing portion 120.

Each of the outer covers 127 is connected to the y-direction end of the wall portion 122. The two outer covers 127 are arranged so as to sandwich the recess 10a. Since the two outer covers 127 are symmetrical with respect to the recess 10a, only one outer cover 127 will be described below, and the description of the other outer cover 127 will be omitted.

The outer cover 127 has an outer surface 127a. The outer surface 127a includes a first surface 127b, a second surface 127c, and a third surface 127d. The boundary 127f between the first surface 127b and the second surface 127c is a linear shape extending along the x direction. The boundary 127g between the second surface 127c and the third surface 127d is a linear shape extending along the x direction. The outer surface 127a is bent at the boundary 127f and the boundary 127g.

The first surface 127b has an edge 127e facing the mounted surface Ro, and is a mirror surface. The first surface 127b is a band extending along the x direction in a plan view. Further, the first surface 127b is planar. In the present embodiment, the first surface 127b extends in the direction perpendicular to the end edge 127e (that is, in the z direction) with respect to the mounted surface Ro. The dimension of the first surface 127b in the z direction is, for example, 5 mm.

The second surface 127c is connected to the first surface 127b at the boundary 127f. The second surface 127c is a band extending along the x direction in a plan view. Further, the second surface 127c is planar. As described above, the outer surface 127a is bent at the boundary 127f. Therefore, the second surface 127c is inclined with respect to the first surface 127b. The second surface 127c is, for example, a matte surface. In order to make the second surface 127c a matte surface, for example, hairline processing is performed. The dimension of the second surface 127c in the z direction is, for example, 24 mm. The dimension of the second surface 127c in the y direction is, for example, 15 mm.

The third surface 127d is connected to the second surface 127c at the boundary 127g. The third surface 127d is a band extending along the x direction in a plan view. Further, the third surface 127d is a flat mirror surface. The third surface 127d has an edge 127h facing the LED unit 2. As described above, the outer surface 127a is bent at the boundary 127g. Therefore, the third surface 127d is inclined with respect to the second surface 127c. In the present embodiment, the third surface 127d has a shape extending in the xy plane. The dimension of the third surface 127d in the y direction is, for example, 2 mm.

A plurality of screw holes 120h are formed in the wing portion 120. Screws (not shown) are screwed into these screw holes 120h, the wing portion 120 is attached to the attached surface Ro, and the wing portion 120 is fixed to the attached surface Ro.

Next, the operation of the LED lighting device A20 will be described.

In the LED lighting device A20, the outer surface 127a of the outer cover 127 includes the first surface 127b which is a mirror surface. Therefore, when looking at the LED lighting device A20 mounted on the mounted surface Ro, the mounted surface Ro is reflected on the first surface 127b. Further, the first surface 127b has an edge 127e facing the mounted surface Ro. Therefore, when the attached surface Ro is reflected on the first surface 127b, the first surface 127b seems to be a portion where the attached surface Ro continues, so that it is difficult to grasp the first surface 127b as a part of the LED lighting device A20. Become. Therefore, such an LED lighting device A20 is suitable for making the thickness (dimension in the z direction) appear smaller.

In the LED lighting device A20, the first surface 127b extends in the direction perpendicular to the end edge 127e with respect to the attached surface Ro. According to such a configuration, it becomes easy to see that the attached surface Ro reflected on the first surface 127b is a surface that continues without bending to the actual attached surface Ro. This makes it more difficult to grasp the first surface 127b as a part of the LED lighting device A20. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

In the LED lighting device A20, the first surface 127b is planar. The planar first surface 127b accurately reflects the actual mounted surface Ro without distortion. According to such a configuration, it becomes easy to see that the attached surface Ro reflected on the first surface 127b is a surface that continues in a series to the actual attached surface Ro. This makes it more difficult to grasp the first surface 127b as a part of the LED lighting device A20. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

In the LED lighting device A20, the outer surface 127a of the outer cover 127 includes the second surface 127c. Since the second surface 127c is not a mirror surface but a matte surface, the mounted surface Ro is not reflected on the second surface 127c. Further, the second surface 127c is connected to the first surface 127b at the linear boundary 127f. If the attached surface Ro is not reflected on the second surface 127c and the boundary 127f is linear, the boundary 127f can be recognized as if it were the end of the LED lighting device A20. Therefore, the portion of the outer surface 127a on the side from the boundary 127f to the second surface 127c can be easily grasped as the portion of the LED lighting device A20. This makes it more difficult to grasp the first surface 127b as a part of the LED lighting device A20. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

In the LED lighting device A20, the outer surface 127a is bent at the boundary 127f. Therefore, the boundary 127f can be recognized as if it is an end portion of the LED lighting device A20. Therefore, it becomes easier to grasp the portion of the outer surface 127a on the second surface 127c side from the boundary 127f as the portion of the LED lighting device A20. This makes it more difficult to grasp the first surface 127b as a part of the LED lighting device A20. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

103 to 106 show an LED lighting device based on the 21st embodiment of the present invention. The LED lighting device A21 of the present embodiment is different from the above-described embodiment in that most of the LED lighting device A21 is embedded in the depth of the opening W provided in the wall surface W such as the ceiling which is the mounted surface. .. The LED lighting device A21 includes a mount 1 and an LED unit 2.

The LED unit 2 has substantially the same configuration as the LED unit 2 shown in FIGS. 3 and 4, and has an elongated shape as a whole.

The mount 1 is composed of a box portion 15a and a frame portion 15b, and is formed by, for example, bending a steel plate having a thickness of about 0.8 mm. The box portion 15a has an elongated rectangular shape, for example, has a width of about 50 mm, a depth of about 29 mm, and a length of about 1230 mm, and accommodates most of the LED units 2 having a length of about 1227 mm. .. More specifically, as shown in FIGS. 105 and 106, in the present embodiment, the height of the LED unit 2 is about 32 mm, so that the cover 4 of the LED unit 2 has a box portion of about 3 mm in the height direction. It protrudes from 15a (mount 1). The width and length of the box portion 15a are set to fit into the opening Wa of the wall surface W.

The frame portion 15b is connected to the peripheral edge of the box portion 15a, and has an elongated rectangular frame shape as a whole. As shown in FIGS. 105 and 106, the frame portion 15b has a portion having a width of about 8 mm or more, which is perpendicular to the end portion of the box portion 15a, that is, parallel to the wall surface W, and from this portion toward the wall surface W. It is composed of a portion extending by about 7 mm. As a result, the frame portion 15b has a size slightly larger than the opening Wa of the wall surface W and is engaged with the wall surface W.

The LED unit 2 is fixed to the mount 1 by the holder 11. The holder 11 has a configuration similar to that shown in FIGS. 38 to 41. In the present embodiment, the holder 11 is formed by bending a metal plate, and has a locking portion 11d and a flexible portion 11b. The locking portion 11d is a portion where the metal plate is bent so as to project toward the LED unit 2, and engages with the convex portion 326 of the outer portion 322 of the bracket 32 of the LED unit 2. The flexible portion 11b is located on the root side of the locking portion 11d, and is allowed to take a state in which the locking portion 11d is engaged with the outer portion 322 and a state in which the locking portion 11d is separated from the outer portion 322 by elastic deformation. .. As shown in FIG. 107, the holder 11 may have the same configuration as that shown in FIGS. 38 to 41.

Further, in the present embodiment, a wire holder 161 is provided for fixing the LED unit 2. The wire holder 161 is formed by bending a wire, and is rotatably supported with respect to the mount 1 by two engaging portions 15c formed on the mount 1. As shown in FIG. 106, the wire holder 161 has a portion curved along the cover 4 of the LED unit 4 and a bent portion engaged with the outer portion 322 of the bracket 32 of the LED unit 2.

As shown in FIGS. 103 and 104, when the LED unit 2 is fixed to the mount 1, the wire holder 161 is closed. On the other hand, when the LED unit 2 is attached to and detached from the mount 1, the wire holder 161 is rotated to open the LED unit 2. As shown in FIG. 104, the wire holder 161 is still located below the LED unit 2 even in the open state.

Next, the operation of the LED lighting device A21 will be described.

Most of the LED lighting device A21 is located behind the wall surface W. Therefore, it is possible to make the portion protruding from the wall surface W smaller. As a result, it is possible to make the entire wall surface W close to a flat surface, and it is possible to give the impression that the room is smart.

By accommodating the LED unit 2 in the box portion 15a, the LED unit 2 can be arranged behind the wall surface W and the LED unit 2 can be fixed at a desired position. The holder 11 makes it possible to attach the LED unit 2 to the mount 1 with a simple operation. Further, the holder wire 161 is convenient for easily attaching and detaching the LED unit 2. On the other hand, since the holder wire 161 is a thin member made of a wire, there is little possibility that the light from the LED unit 2 is unreasonably blocked.

Since the cover 4, which is a part of the LED unit 2, protrudes from the mount 1, it is possible to prevent the light transmitted through the cover 4 from being blocked by the mount 1. This is suitable for illuminating a wider area with the LED lighting device A21.

FIG. 108 shows an LED lighting device based on the 22nd embodiment of the present invention. The LED lighting device A22 of the present embodiment is different from the above-mentioned LED lighting device A21 in that it includes a plurality of LED units 2.

In the LED lighting device A22, the length of the box portion 15a of the mount 1 is set to be a length obtained by multiplying the lengths of the plurality of LED units 2 by approximately integers. A plurality of LED units 2 are arranged in series in the box portion 15a.

According to such an embodiment, it is possible to make a structure in which the seams are hardly conspicuous even though the length is from one end to the other of the ceiling of a relatively large room.

FIGS. 109 to 112 show LED lighting devices based on the 23rd embodiment of the present invention. The LED lighting device A23 of the present embodiment includes two LED units 2. As shown in FIGS. 109, 111, and 112, in the present embodiment, the width of the box portion 15a is about 100 mm, which is larger than twice the width of the LED unit 33 mm. As a result, the box portion 15a accommodates the two LED units 2 in parallel.

Further, in the present embodiment, the LED unit 2 is provided with two release levers 162. Each release lever 162 is made of a steel plate having a thickness of, for example, about 1.6 mm, and is a strip-shaped member having a width of about 10 mm. The two release levers 161 are rotatably supported by bolts with respect to the support member 3 of the LED unit 2. In FIG. 110, the release lever 162 shown by the solid line shows a state in which the LED unit 2 is fixed to the mount 1. On the other hand, the release lever 162 indicated by the alternate long and short dash line indicates the state when the LED unit 2 is removed from the mount 1. When the release lever 162 is erected in a direction perpendicular to the longitudinal direction of the LED unit 2, the end portion deeper than the wall surface W protrudes deeper than the support member 3 and pushes the bottom of the box portion 15a. .. Due to this reaction force, the LED unit 2 can be removed from the mount 1.

According to such an embodiment, it is possible to illuminate the room with brighter illuminance even with the same length as compared with the configuration having only one row of LED units 2. Further, if the release lever 161 is used, the two LED units 21 arranged in parallel relatively close to each other can be easily removed individually.

FIG. 113 shows an LED lighting device based on the 24th embodiment of the present invention. The LED lighting device A24 of the present embodiment includes a plurality of LED units 2. The width of the box portion 15a is about 100 mm, and the length thereof is approximately an integral multiple of the length of the LED unit 2. As a result, a plurality of LED units 2 are housed in the box portion 15a in series and in two rows. According to such an embodiment, a larger room can be illuminated with sufficient illumination.

The LED lighting device according to the present invention is not limited to the above-described embodiment. The specific configuration of each part of the LED lighting device according to the present invention can be freely redesigned.

The configuration is not limited to mounting the LED module 20 on the substrate 31, and an insulating layer and a wiring pattern may be formed on the support member 3 and the LED module 20 may be mounted therein. The configuration having the LED module 20 is suitable for efficiently emitting the light from the LED chip 22, but the present invention is not limited to this, and for example, the configuration in which the LED chip 22 is directly mounted on the substrate 31. May be good.

For example, in the LED lighting devices A16 to A19, the bracket 32 having one end inclined in the longitudinal direction is used, but the bracket 32 shown in the LED lighting devices A3 and A14 can be used instead.

Further, in the LED lighting devices A16 to A19, the first and second light emitting portions 1A and 2A are formed so as to extend in a direction orthogonal to each other, but the direction in which the first and second light emitting portions in the present invention extend. Is not limited to the above-described embodiment. For example, for the purpose of decoration or the like, it is possible to carry out the case where the angle formed by the extending direction of the first and second light emitting portions is an acute angle or an obtuse angle.

The configuration is not limited to mounting the LED module 20 on the substrate 31 or the additional substrate 31b, and an insulating layer and a wiring pattern may be formed on the support member 3 and the LED module 20 may be mounted therein. The configuration including the LED module 20 is suitable for efficiently emitting light from the LED chip 22, but the present invention is not limited to this, and the LED chip 22 is directly mounted on, for example, the substrate 31 or the additional substrate 31b. It may be a configuration.

A1 to A24 LED lighting device Cy center line Cxy center line D removal jig E AC power supply Lw linear index Ro mounted surface S1, S2 switch T transformer W, W', W'' wall surface (mounted surface)
x (1st) direction y (3rd) direction z (2nd) direction 1 mount (support)
2 LED unit 3 Support member 4 Cover 5 Power conversion unit 10 Main body 10A First support 10B Second support 10a Recess 11 Holder 11a Locking piece 11b Flexible part 11c Notch part 11d Locking part 12 Holder 12a Fitting Joint part 12b Flexible part 12c Hook-shaped part 13 holder 13a Locking piece 13b Flexible part 13c Fixed part 14 Holder 14a Locking piece 14b Flexible part 14c Base part 14d Notch 14e, 14f Bending part 14g Protruding part 15a Box part 15b Frame part 15c Engagement part 161 Wire holder 162 Release lever 20 LED module 20a Illuminance confirmation LED chip 20b Notification LED chip 21 Lead 21a Mounting terminal 22 LED chip 23 Encapsulating resin 24 Reflector 31 Board 31a Additional part 31b Additional board 32 Bracket 32a Storage space 32b Concave 33 Screw (convex)
34 Connector 34a, 34b, 34c Connector 35 Shaft 35a Root 35b Tip 36 Wire group 41, 42 Locking piece 41a End 41b Step 42a Locking surface 42b Inclined surface 43 Central part (strong diffusion part)
44 Diffuse member 51 Case 51a Notch 51b Holder 51c, 51d Folding part 52 Power supply board 53 Electronic component 54 Detection means 55 Voltage detection means 56a, 56b Resistor 57 Adjustment resistor 110 Base plate 110a Mounting surface 110b, 110c Index part 111 Protruding part 111a (for wing connection) Screw hole 112 (for ceiling mounting) Screw hole 112a Long hole-shaped part 112b Recessed part 112c Screw hole 112d Index part 113 Long plate part 114, 114b, 114c, 115 Plate-shaped member 114a Notch part 116 Shading part 116a Cavity part 116b Hole part 120 Wing part 120h Screw hole 121 Bottom plate part 121a Screw through hole 122 Wall part 123 Arched part 124 Connecting part 125 Regulatoring member 126 Cap 127 Outer cover 127a Outer surface 127b First surface 127c Second surface 127d Third surface 127e, 127h Edge edge 127f, 127g Boundary 131 screw (connecting means)
132 screws (mounting means)
141 Washers (adjustment members)
142 Spring (elastic member, adjusting member)
143 Laminated body (adjusting member)
144 Seal (Membrane-like member)
150 Base metal fittings 311 Wiring group 321 Base part 321a Recessed part 322 Outer part 322a Reflector 323 (for fixing) Locking groove 324, 325 (for cover) Locking groove 324a Locking surface 325a Locking surface 325b Convex piece 326 Convex part 331 332 Cap 361 Main wire 361a Power line 361b Signal line 362 Connection line

Claims (3)

An LED lighting device consisting of an LED unit and a mount.
The LED unit has a plurality of LED modules, support members, covers, and power conversion units arranged in the first direction.
The mount is composed of a base plate and a wing portion.
The base plate is formed in an elongated plate shape having the first direction as the longitudinal direction and the second direction orthogonal to the first direction as the width direction.
The base plate is formed with screw holes penetrating in the first direction and the third direction orthogonal to the second direction.
An LED lighting device to which the base plate is attached with an adjusting member arranged between the wall surface to which the base plate is attached and the base plate. The adjusting member is a washer or a spring.
The LED lighting device according to claim 1, wherein the base plate is attached to the wall surface in a state where the screw is inserted into the washer or spring and the screw hole. The adjusting member is a laminated body and is
The laminate is composed of a plurality of seals laminated on the mounting surface so that they can be peeled off in order from the top.
The LED lighting device according to claim 1, wherein the laminated body is arranged at a position that does not overlap with the screw hole when viewed from the third direction.

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