JP2023063532A - LED lighting device - Google Patents

Abstract

To provide an LED lighting device which can be mounted on a ceiling and the like by aligning the direction.SOLUTION: An LED lighting device A5 comprises an LED unit 2 and a mount 1. The LED unit 2 includes a plurality of LED modules 20 arrayed in the x direction, a support member 3, a cover 4, and a power conversion part 5. The mount 1 comprises two base metal fittings 150 and two holders 11. The base metal fitting 150 has a raised part 150a and two extension parts 150b. At the raised part 150a, the holder 11 is mounted. The two extension parts 150b extend in the y direction by sandwiching the raised part 150a, and at each of the two extension parts 150b, a screw hole 112 is provided. The screw hole 112 has a long hole-like part 112a and a recessed part 112b. In the long hole-like part 112a, the y direction becomes a long axis direction. The recessed part 112b is recessed in the x direction from the center of the long hole-like part 112a.SELECTED DRAWING: Figure 31

Description

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

FIG. 114 shows a cross-sectional view of an example of a conventional LED lighting device (see Patent Document 1, for example). The LED lighting device X shown in FIG. and 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 such that a plurality of LED chips 92 can emit light by fitting the terminals 94 into socket insertion openings of a general-purpose fluorescent 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 a fluorescent lamp, improvements in terms of cost and environment can be expected. General fluorescent lamp lighting fixtures are lighting fixtures that are widely used mainly for indoor general lighting. For example, in Japan, a straight tube fluorescent lamp or 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 has terminals 94 at both ends and is configured on the premise that light is emitted in all circumferential directions. For this reason, for example, if 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 will be generated between the adjacent LED lighting devices X. A person who sees this may feel that the appearance is not good. Alternatively, even when it is desired to illuminate a part of the wall surface, if the LED illumination device X is used, the light will be applied to areas other than the desired area. For this reason, it is forced to provide a light-shielding cover that covers the half circumference of the LED lighting device X, for example.

Furthermore, in the LED lighting device X, a plurality of LED chips 92 are used as light sources. 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 luminance unevenness is significant, individual LED chips 92 may be visible depending on the viewing direction. In such a case, the viewer may feel that the appearance is not good.

Also, when installing an LED lighting device on a ceiling or the like without using a general-purpose fluorescent lighting fixture, the parts may deteriorate due to long-term use, causing the device to tilt or shift its direction, resulting in an unattractive appearance. are concerned.

In addition, when a plurality of LED lighting devices are attached in different directions, for example along corners or pillars 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. be. In such a case, there is a concern that the viewer will have a troubled impression and the appearance will deteriorate.

Also, when the LED lighting device X is attached to the ceiling, it is attached to a general-purpose fluorescent lighting fixture fixed to the ceiling. Therefore, the LED lighting device X emits light at a position slightly below the ceiling. Then, a person looking at the ceiling has the impression that the LED lighting device X and the general-purpose fluorescent lighting fixture protrude considerably from the ceiling. There is a problem that this protrusion from the ceiling hinders the unification of the indoor appearance into a smart impression.

Also, when the LED lighting device X is attached to a lighting fixture installed on the ceiling, the LED lighting device X protrudes considerably from the ceiling. The protruding LED lighting device X may give the impression that the room is cluttered.

Japanese Utility Model Laid-Open No. 6-54103

An object of the present invention is to provide an LED lighting device capable of suppressing luminance unevenness.

An LED lighting device provided by the present invention is an LED lighting device to be attached to a mounting surface, and includes a plurality of LED chips mounted thereon, an LED unit extending along a first direction, and at least a portion of the LED unit described above. a support that is positioned deeper than the opening provided in the mounting surface and has a box portion that accommodates at least a part of the LED unit.

In a preferred embodiment of the present invention, the support further includes a frame portion connected to the outer periphery of the box portion and engaged with the mounting surface.

An LED lighting device provided by the present invention is an LED lighting device comprising a plurality of LED chips, the plurality of LED chips being mounted on an elongated support member extending along a first direction; a diffusion cover connected to the support member, covering the plurality of LED chips, and diffusing light from the plurality of LED chips to be emitted to the outside, wherein the diffusion cover is arranged in the first direction. In terms of vision, a strong diffusion portion including a portion at which the distance from the LED chip is the shortest is provided, and the degree of diffusion of the light from the plurality of LED chips of the strong diffusion portion 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 at a portion closer to the LED chip when viewed from the first direction.

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

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

In a preferred embodiment of the present invention, the strong diffusion portion is composed of the main body of the diffusion cover and a diffusion member stacked on the main body for diffusing the light from the plurality of LED chips.

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

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

In a preferred embodiment of the present invention, the LED chip is installed such that a second direction orthogonal to the first direction is the main emission direction, and the diffusion cover is arranged in the first direction. When viewed, the outer peripheral shape thereof is an elliptical shape 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 strongly diffusing portion is flat.

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

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

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

In a preferred embodiment of the present invention, the translucent resin contains a fluorescent material that emits light having a wavelength different from that of 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 a third direction 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, an elongated LED unit mounted with the plurality of LED chips and extending in the first direction; a support attached to the facing surface, wherein the LED unit includes a bracket that holds the plurality of LED chips, and the translucent cover is mounted on the bracket in the second direction. 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 recessed in the second direction opposite to the side where light is emitted from the plurality of LED chips, and the plurality of LED chips are , located in the recess.

In a preferred embodiment of the present invention, a power conversion section is provided that converts power input from the outside into power suitable for the plurality of LED chips, and the power conversion section provides power for 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 diffuser 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 present invention, the bracket is formed with a pair of engagement grooves that engage with the pair of locking pieces of the diffusion cover.

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

BRIEF DESCRIPTION OF THE DRAWINGS It is a principal part perspective view which shows the LED lighting apparatus based on 1st Embodiment of this invention. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1; FIG. 2 is a perspective view of essential parts showing an LED unit of the LED lighting device shown in FIG. 1 ; 4 is a cross-sectional view taken along line IV-IV of FIG. 3; FIG. FIG. 4 is a cross-sectional view showing an LED module used in the LED unit shown in FIG. 3; FIG. 4 is a perspective view of a main part showing a case of a power converter of the LED unit shown in FIG. 3; FIG. 4 is a cross-sectional view showing attachment of a cover in assembling the LED unit shown in FIG. 3 ; FIG. 4 is a cross-sectional view of main parts showing a state in which the cover of the LED unit shown in FIG. 3 is pushed; 1. (a) is a front view, (b) is a side view, (c) is a top view which shows the holder of the LED lighting apparatus shown in FIG. 2 is a cross-sectional view showing attachment of an LED unit to a mount in assembling the LED lighting device shown in FIG. 1; FIG. 2 is a cross-sectional view showing removal of an LED unit in the LED lighting device shown in FIG. 1; FIG. FIG. 10 is a perspective view of a main part showing an LED lighting device according to a second embodiment of the present invention; FIG. 13 is a cross-sectional view along line XIII-XIII of FIG. 12; FIG. 13 is a cross-sectional view showing an LED unit of the LED lighting device shown in FIG. 12; FIG. 13 is a front view of a main part showing attachment of the LED unit to the mount in the assembly of the LED lighting device shown in FIG. 12; FIG. 13 is a side view showing attachment of the LED unit to the mount in the assembly of the LED lighting device shown in FIG. 12; 13(a) is a front view and (b) is a side view showing a holder for an LED unit in the LED lighting device shown in FIG. 12. FIG. FIG. 11 is a perspective view of a main part showing an LED lighting device according to a third embodiment of the present invention; FIG. 19 is a cross-sectional view along line XIX-XIX in FIG. 18; FIG. 11 is a cross-sectional view showing an LED lighting device according to a fourth embodiment of the invention; FIG. 21 is a cross-sectional view showing a support of the LED lighting device shown in FIG. 20; FIG. 22 is a cross-sectional view showing a state in which the base plate of the support shown in FIG. 21 is attached as it is to a wall surface; FIG. 22 is a cross-sectional view showing a state in which the base plate of the support shown in FIG. 21 is attached to a wall surface; FIG. 24 is a cross-sectional view along line XXIV-XXIV of FIG. 23; FIG. 23 is a cross-sectional view showing a state in which the base plate of the support shown in FIG. 22 is attached to a wall surface using another adjustment member; FIG. 10 is a cross-sectional view showing a base plate with yet another adjustment member; 27 is an enlarged view of a main portion of the base plate shown in FIG. 26; FIG. FIG. 27 is a cross-sectional view showing a preferred mounting state of the base plate shown in FIG. 26; FIG. 22 is a cross-sectional view showing a state in which an adjustment member is incorporated in the support shown in FIG. 21; FIG. 11 is a perspective view of a main part showing an LED lighting device according to a fifth embodiment of the present invention; 31 is a plan view showing the LED lighting device shown in FIG. 30; FIG. FIG. 31 is a cross-sectional view taken along line XXXII-XXXII in FIG. 30; FIG. 31 is a plan view showing a state where the LED lighting device shown in FIG. 30 is attached to the ceiling; 34 is a plan view showing a state in which the LED lighting device shown in FIG. 33 is shifted in the x direction; FIG. 34 is a plan view showing a state in which the LED lighting device shown in FIG. 33 is shifted in the y direction; FIG. FIG. 11 is a plan view showing a modified example in which screw holes are applied to the base plate; FIG. 11 is a cross-sectional view showing an LED lighting device according to a sixth embodiment of the present invention; FIG. 38 is a perspective view showing a holder in the LED lighting device shown in FIG. 37; FIG. 38 is a side view of a main part of the LED lighting device shown in FIG. 37; FIG. 38 is a main part side view showing a modification of the LED lighting device shown in FIG. 37; FIG. 38 is a side view of a main part showing another modification of the LED lighting device shown in FIG. 37; FIG. 11 is a perspective view of a main part showing an LED lighting device according to a seventh embodiment of the present invention; FIG. 43 is a cross-sectional view along line XLIII-XLIII in FIG. 42; FIG. 43 is a cross-sectional view showing attachment of an LED unit in the LED lighting device shown in FIG. 42; FIG. 43 is a cross-sectional view showing attachment of an LED unit in the LED lighting device shown in FIG. 42; FIG. 43 is a cross-sectional view showing removal of the LED unit in the LED lighting device shown in FIG. 42; FIG. 21 is a perspective view of a main part showing a main part of an LED lighting device according to an eighth embodiment of the present invention; 48 is a perspective view showing a base plate of the LED lighting device shown in FIG. 47; FIG. FIG. 49 is a cross-sectional view along line XLIX-XLIX in FIG. 48; FIG. 48 is a cross-sectional view showing a modification of the light shielding portion shown in FIG. 47; FIG. 48 is a cross-sectional view showing another modification of the light shielding portion shown in FIG. 47; FIG. 48 is a perspective view of a main portion showing still another modification of the light shielding portion shown in FIG. 47; FIG. 21 is a perspective view of a main part showing an LED lighting device according to a ninth embodiment of the present invention; 54 is an enlarged cross-sectional view of the cover shown in FIG. 53; FIG. FIG. 55 is a cross-sectional view showing a modification of the cover shown in FIG. 54; FIG. 55 is a cross-sectional view showing another modification of the cover shown in FIG. 54; FIG. 55 is a cross-sectional view showing still another modification of the cover shown in FIG. 54; FIG. 55 is a cross-sectional view showing still another modification of the cover shown in FIG. 54; FIG. 20 is an exploded perspective view of an LED lighting device according to a tenth embodiment of the present invention; FIG. 60 is a plan view showing the base plate of the LED lighting device shown in FIG. 59; FIG. 60 is a cross-sectional view of essential parts showing a process of attaching the base plate shown in FIG. 59 to a wall surface; FIG. 60 is a plan view of essential parts showing a process of attaching the base plate shown in FIG. 59 to a wall surface; FIG. 60 is a perspective view of a main part showing a modification of the index portion shown in FIG. 59; FIG. 62 is a main part plan view showing a modification of the index portion shown in FIG. 61; FIG. 62 is a plan view of a main portion showing another modification of the indicator portion shown in FIG. 61; FIG. 62 is a plan view of a main part showing still another modified example of the index portion shown in FIG. 61; FIG. 20 is a cross-sectional view of an LED lighting device according to an eleventh embodiment of the present invention; FIG. 68 is a perspective view of a main part of the LED unit shown in FIG. 67; FIG. 69 is a cross-sectional view of the LED unit shown in FIG. 68; 69 is a simplified wiring block diagram of the LED unit shown in FIG. 68; FIG. FIG. 21 is a perspective view of a main part of an LED lighting device according to a twelfth embodiment of the present invention; FIG. 72 is a side view of the LED unit shown in FIG. 71; FIG. 73 is a cross-sectional view along line LXXIII-LXXIII in FIG. 72; FIG. 20 is a perspective view of a main part of an LED lighting device according to a thirteenth embodiment of the present invention; FIG. 75 is a cross-sectional view of the LED unit shown in FIG. 74; FIG. 20 is a perspective view of a main part of an LED lighting device according to a fourteenth embodiment of the present invention; FIG. 77 is a cross-sectional view of the LED unit shown in FIG. 76; FIG. 20 is a perspective view of a main part of an LED lighting device according to a fifteenth embodiment of the present invention; 79 is a perspective view of the holder shown in FIG. 78; FIG. (a) of the holder shown in FIG. 79 is a front view, (b) is a side view, and (c) is a plan view. FIG. 20 is a plan view showing an LED lighting device according to a sixteenth embodiment of the present invention; FIG. 82 is a plan view of the LED lighting device shown in FIG. 81 as seen from the opposite direction; FIG. 83 is a cross-sectional view taken along line LXXXIII-LXXXIII in FIG. 82; FIG. 82 is an enlarged view of a main portion of FIG. 81; FIG. 82 is an enlarged view of a main portion of FIG. 81; (a) is a plan view, (b) is a side view, and (c) is a bottom view of the first support shown in FIG. (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. 84 is an enlarged view of a main part of the cover shown in FIG. 83; 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 attachment. (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 attachment. (a) of the cap shown in FIG. 81 is a front view, (b) is a side view, and (c) is a plan view. (a) of the case shown in FIG. 83 is a side view of essential parts, (b) is a front view, and (c) is a plan view of essential parts. FIG. 93 is an exploded view of the case shown in FIG. 92; FIG. 20 is an enlarged plan view of a main part showing an LED lighting device according to a seventeenth embodiment of the present invention; FIG. 20 is an enlarged plan view of a main part showing an LED lighting device according to an eighteenth embodiment of the present invention; FIG. 20 is an enlarged plan view of a main part showing an LED lighting device according to a nineteenth embodiment of the present invention; FIG. 20 is a perspective view of a main part of an LED lighting device according to a twentieth embodiment of the present invention; FIG. 98 is a cross-sectional view of the LED lighting device shown in FIG. 97; FIG. 98 is a front view of the wing portion of the LED lighting device shown in FIG. 97; FIG. 98 is a plan view of the wing portion of the LED lighting device shown in FIG. 97; FIG. 98 is a side view of the wing portion of the LED lighting device shown in FIG. 97; FIG. 98 is a bottom view of the wing portion of the LED lighting device shown in FIG. 97; FIG. 21 is a plan view of a main part of an LED lighting device according to a twenty-first embodiment of the present invention; FIG. 104 is a cross-sectional view of a main part taken along line CIV-CIV in FIG. 103; FIG. 104 is a cross-sectional view along line CV-CV of FIG. 103; FIG. 104 is a cross-sectional view along the CVI-CVI line in FIG. 103; FIG. 22 is a cross-sectional view showing a modification of the LED lighting device according to the twenty-first embodiment of the present invention; FIG. 20 is a plan view of a main part of an LED lighting device according to a twenty-second embodiment of the present invention; FIG. 23 is a plan view of a main part of an LED lighting device according to a twenty-third embodiment of the present invention; FIG. 110 is a cross-sectional view of the main part along line CIX-CIX in FIG. 109; FIG. 109 is a cross-sectional view along line CX-CX of FIG. 109; FIG. 109 is a cross-sectional view taken along line CXI-CXI in FIG. 109; FIG. 24 is a plan view of a main part of an LED lighting device according to a twenty-fourth embodiment of the present invention; It is a cross-sectional view showing an example of a conventional LED lighting device.

Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

1 and 2 show an LED lighting device according to a first embodiment of the 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 while being attached to an indoor ceiling, for example, and has a length of 1227 mm. The width is about 120 mm and the height is about 38 mm.

The mount 1 comprises a body 10 and multiple holders 11 . The main body 10 has an elongated shape extending in the x direction and is made of aluminum, for example. The main body 10 is provided with a concave portion 10a. The recess 10a is for accommodating the LED unit 2. As shown in FIG. The main body 10 has a curved surface with a continuous curvature across the recess 10a.

The holder 11 is formed by bending a metal plate, for example, 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 configured to support the locking piece 11a. When an external force is applied to the pair of flexible portions 11b, the pair of locking pieces 11a can be elastically deformed in a direction to move the pair of locking pieces 11a toward and away from each other. A pair of locking pieces 11a is a portion that engages with the LED unit 2, and is inclined so that the distance between them decreases upward in FIG. 9(a). In this embodiment, a plurality of holders 11 are provided inside 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 converter 5. As shown in FIG. The LED unit 2 has a length (approximately 1220 mm) that reaches both ends of the mount 1 in the x direction.

The LED module 20 includes a pair of leads 21, an LED chip 22, a sealing resin 23, and a reflector 24, as shown in FIG. A pair of leads 21 are made of, for example, a Cu alloy, and an LED chip 22 is mounted on one of them. The surface of the lead 21 opposite to the surface on which the LED chip 22 is mounted serves as a mounting terminal 21a used for surface-mounting the LED module 20 . The LED chip 22 is the 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 using translucent resin containing a fluorescent substance that emits yellow light when excited by the light from the LED chip 22 . Thereby, the LED module 20 can emit white light. Instead of the fluorescent material emitting yellow light, a mixture of a fluorescent material emitting red light and a fluorescent material emitting green light may be used. The reflector 24 is made of, for example, a white resin, and serves to reflect upward the light emitted sideways from the LED chip 22 .

As shown in FIGS. 3 and 4, the support member 3 is for supporting and supplying power to the plurality of LED modules 20, and consists of a substrate 31 and a bracket 32. As shown in FIG.

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

As shown in FIG. 4, the bracket 32 consists of a base portion 321 and a pair of outer portions 322. As shown in FIG. Base portion 321 and 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 of the base portion 321 . The outer portion 322 is shaped to cover substantially one side portion of the base portion 321 and the edge of the substrate 31 in the y direction. As shown in FIGS. 3 and 4 , the base portion 321 and the outer portion 322 are fastened together by a plurality of screws 33 .

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

A locking groove 324 is formed in one outer portion 322 . The locking groove 324 extends in the x direction and is recessed on the side opposite to the emission direction of the LED module 20 in the z direction. The locking groove 324 has a locking surface 324a. The locking surface 324a extends in the x-direction and faces the opposite side of 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 of the emission direction in the z-direction. The projecting piece 325b is positioned 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 a strip shape with an arcuate cross-section extending in the x direction, and is made of, for example, a milky-white resin that diffuses and transmits the light from the LED module 20 . As shown in FIG. 4, locking pieces 41 and 42 are formed on both edges of the cover 4 .

The locking piece 41 has an end portion 41a and a stepped portion 41b. The end portion 41a is convex on the side opposite to the emission direction in the z direction. The stepped portion 41b has a shape in which the end portion 41a is shifted inward in the y direction at the front and rear thereof. The locking piece 41 engages with the locking groove 324 . More specifically, the end portion 41 a is adapted to enter the locking groove 324 . The stepped 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 emission direction in the z direction than the locking surface 42a, and faces the projecting piece 325b of the support member 3 in the z direction. The inclined surface 42b is inclined inwardly 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 adapted to abut against the locking surface 325a of the support member 3. As shown in FIG.

The power converter 5 functions to convert commercial AC 100V power to DC 36V, for example, and is accommodated in the support member 3 . The power converter 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, the end of the case 51 is formed with a plurality of notches 51a. The notch 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 projects inward from the base portion 321 . The power board 52 is fixed to the case 51 and has a plurality of electronic components 53 mounted thereon. The plurality of electronic components 53 are, for example, transformers, rectifiers, and transistors for constant current control. A connector 34 extends from the power converter 5 as shown in FIG. This connector 34 is connected to a connector (not shown) attached to the mount 1 .

In this embodiment, two power converters 5 are provided, and power is supplied to 144 LED modules 20 from one power converter 5 . These 144 LED modules 20 are divided into 12 groups of 12 connected in series. 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 this embodiment, the LED lighting device A1 has a relatively smooth shape that does not protrude from the ceiling surface. Therefore, it gives a smart impression to the viewer without unduly disturbing the beauty of the interior. Also, 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 close proximity to each other. Therefore, an excessively large non-light-emitting region is not formed between the LED lighting devices A1. Therefore, the viewer can be given the impression that the lighting device looks good as a lighting device that illuminates the floor surface of a wider room.

By housing the power converter 5 in the U-shaped support member 3, the height of the LED lighting device A1 can be relatively reduced.

The substrate 31 is held down by the outer portion 322 . As a result, even if the LED lighting device A1 is attached to the ceiling and used for a long period of time, it is possible to prevent the board 31 from unduly falling.

FIG. 7 shows how the cover 4 is attached to the support member 3 when the LED unit 2 is assembled. As shown in this figure, first, the locking piece 41 of the cover 4 is hooked to the locking groove 324 of the support member 3 . Next, by rotating the cover 4 around the locking piece 41 , the locking piece 42 is brought closer to the locking groove 325 . 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. Thus, the cover 4 can be easily attached.

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

When pushing in the LED unit 2, the cover 4 is likely to be pushed with a strong force. At this time, as shown in FIG. 8, the locking piece 42 moves inwardly 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, a force directed inward in the y direction is applied to the locking piece 42 . As a result, even if the cover 4 is strongly pushed, it is possible to prevent the cover 4 from unduly coming off the support member 3 .

11 shows how the LED unit 2 is removed from the mount 1. FIG. As 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 pieces 11 a 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 .

Figures 12-97 show another embodiment of the invention. In these figures, the same or similar elements as in the above embodiment are denoted by the same reference numerals as in the above embodiment.

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

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

As shown in FIG. 15 , the LED unit 2 of this 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 consists of a root portion 35a and a tip portion 35b. The root portion 35 a 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 12 a is an oval hole and is fitted with the tip portion 35 b 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 positioned inside the fitting portion 12a in the x direction and has a J shape.

As shown in FIGS. 15 and 16 , when mounting the LED unit 2 on the mount 1 , the LED unit 2 is brought closer to the mount 1 and the tip 35 b of the shaft 35 is pressed against the flexible portion 12 b of the holder 12 . Then, the flexible portions 12b are 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 into the fitting portion 12a, and the flexible portion 12b assumes the shape before deformation. As a result, the LED unit 2 can be easily attached to the mount 1 only by pushing it. Further, even if the tip portion 35b is not properly fitted to the fitting portion 12a during the mounting work, the shaft 35 will be caught by the hook-shaped portion 12c. Therefore, it is possible to prevent the LED unit 2 from being accidentally dropped during the mounting work of the LED unit 2 or the like.

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

18 and 19 show an LED lighting device according to a third embodiment of the invention. The LED lighting device A3 of this embodiment differs from the above-described LED lighting device A1 mainly in the configuration of the mount 1, but the rest of the configuration is the same as that of the LED lighting device A1, and a description thereof will be omitted as appropriate.

In this embodiment, the main body 10 of the mount 1 is composed of a base plate 110 and wings 120 . 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 includes a mounting surface 110 a and a plurality of bulging portions 111 . Both 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 provided on the upper side in the z-direction. The plurality of bulging portions 111 are portions formed to protrude downward in the z-direction, and are arranged so as to be spaced apart 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 arcuate portions 123, and is made of opaque resin or aluminum, for example. The bottom plate portion 121 is parallel to the base plate 110 . The two wall portions 122 stand up 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. As shown in FIG. The two arcuate portions 123 extend from the z-direction lower ends of the two wall portions 122 and are arranged with the recess 10a interposed therebetween. The arcuate portion 123 of No. 2 has a shape whose envelope curve is arcuate. Base plate 110 and wing portion 120 are coupled to each other, for example, by screws (not shown).

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

The lower part of the cover 4 in the drawing has a shape corresponding to a part of an ellipse with the major axis in the y direction and the minor axis in the z direction. The position where the locking pieces 41 and 42 of the cover 4 and the outer portion 322 of the bracket 32 are joined is above the LED module 20 in the figure, that is, on the side opposite to the side from which light is emitted from the LED module 20. located in

In this embodiment, the total height ht of the LED illumination device A3 is 40.3 mm. The total height ht is desirably less than 45 mm. The full width Wt of the LED lighting device A3 is set to 120 mm. The ratio of the overall height ht to the overall width Wt is ht/Wt=1/3. This ratio ht/Wt is desirably less than 1/2.

Moreover, 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 set to 30 mm. The LED module 20 of this embodiment is remarkably compact. Therefore, in the LED lighting device A3, the bottom surface of the LED module 20 can be considered to be at substantially the same position as the light emitting surface of the LED chip 22. FIG. Also, 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. This ratio h1/h2 is preferably greater than 2 and less than 4.

A height d1 of the power conversion unit 5 is set to 19.5 mm. The ratio between the height d1 and the height h1 is d1/h1=0.65. This ratio d1/h1 is preferably greater than 1/2.

Moreover, the height h3 of the mount 1 of the LED illumination device A3 is set to 30 mm. As a result, the height h3 is approximately 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 arcuate portion 123 of the mount 1 has an arcuate envelope. Although the cover 4 of the LED unit 2 does not completely match this envelope, it is close to this envelope and has a shape and position that give a familiar impression. The intersection angle α1 between the extension line extending from the outer surface of the arcuate portion 123 toward the LED unit 2 and the cover 4 of the LED unit 2 is preferably 40 degrees or less.

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

As a specific application of the LED lighting device A3, it is assumed that it will be used as a substitute for a lighting device using a fluorescent lamp in a place where this lighting device was 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 portions. The LED lighting device A3 of this embodiment has a relatively small ratio ht/Wt of 1/3. This, in other words, means that the overall width Wt is relatively wide while the overall height ht is low. With such a configuration, there is an advantage that it is possible to hide the mounting traces of the previously mounted lighting device. It is desirable that the ratio ht/Wt is less than 1/2 in order to suppress a complicated impression and realize uniform light distribution characteristics, as well as to exhibit such advantages.

When the ratio h1/h2 is 2.9, it is possible to secure an appropriate space for arranging the power converter 5 and to improve the light distribution characteristics. If the ratio h1/h2 is 2 or less, the space for arranging the power converter 5 will be insufficient. On the other hand, when the ratio h1/h2 is 4 or more, the light distribution characteristics tend to become uneven. In addition, when the ratio h1/h2 is 2 or less, an attempt is made to secure an arrangement space for the power conversion unit 5, or when an attempt is made to improve the light distribution characteristics when the ratio is 4 or more, the LED lighting device It invites the enlargement 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 (the light emitting surface of the LED chip 22) is kept low despite the relatively bulky power conversion unit 5 being provided. means that If the ratio d1/h1 is less than 1/2, the total height ht of the LED lighting device A3 will be unduly high.

Since the height h3 of the mount 1 is 0.75 times the total height ht, it gives the impression that the mount 1 covers a considerable part of the LED illumination device A3. Furthermore, in this embodiment, the crossing angle α1 is set to 40 degrees or less. As a result, the LED illumination device A3 has a very small step, and the step is inconspicuous, giving an impression of being smooth and beautiful.

The total height ht and the height h2 can be reduced by the cover 4 having a portion shaped like a part of an ellipse. Attaching the cover 4 to the bracket 32 at a position closer to the ceiling than the LED module 20 is suitable for suppressing the protrusion amount of the cover 4, and is preferable for reducing the total height ht and the height h2. Moreover, the height h1 can be reduced by fitting the substrate 31 into the recess 321a.

By adopting a configuration in which the power converter 5 is accommodated in the bracket 32 on the ceiling side of the LED module 20, the LED unit 2 can be formed into an elongated 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 according to a fourth embodiment of the invention. The LED lighting device A4 of this embodiment differs from the above-described embodiment in that it includes an adjustment member according to the present invention, and the rest of the configuration is the same as that of the LED lighting device A3 described above. do.

The mount 1 is a support that holds the LED unit 2 and includes a main body 10 and multiple holders 11 . The body 10 includes a base plate (first member) 110 and wing portions (second member) 120, as well as screws 131, screws 132, and washers 141 as shown in FIG. The screw 131 connects the base plate 110 and the wing portion 120, and is an example of the connecting means of the present invention. The screw 132 is used to attach the base plate 110 to the wall surface W, and is an example of attachment means in 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 necessary when attaching the base plate 110 to the wall surface W, and is an example of the adjusting member in 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. I have. Both 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 provided on the upper side in the z-direction. The plurality of bulging portions 111 are portions formed to protrude downward in the z-direction, and are arranged so as to be spaced apart from each other along the x-direction. Each bulging portion 111 is formed with a screw hole 111a (for wing connection) penetrating in the z-direction. A female screw corresponding to the screw (connecting means) 131 is formed inside the screw hole 111a. Considering that the base plate 110 is elongated in the x direction, the bulging portions 111 are arranged near both ends and near the center of the base plate 110 in the x direction.

The screw holes 112 are formed near both ends of the base plate 110 in the x direction. These screw holes 112 pass through the base plate 110 in the z-direction, and are formed so that portions other than the heads of the screws 132 are inserted. In this 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. It may be the other way around.

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

For comparison, FIG. 22 shows how the base plate 110 is attached to the wall surface W without using the washer 141 . According to FIG. 22, the vicinity of the left end of the base plate 110 in the x direction is fitted into the recess on the left side of the wall surface W, and the base plate 110 is in an inclined state.

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 shown at the left end of the drawing. The base plate 110' is attached to the wall surface W without being inclined.

A bottom plate portion 121 of the wing portion 120 is formed with a plurality of screw holes 121a penetrating in the z-direction. Each screw through hole 121a is formed at a position overlapping each screw hole 111a of the base plate 110 when viewed in the z direction. 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 hole 121a and each screw hole 111a.

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

When attaching the LED lighting device A4 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 concave portion 10a of the wing portion 120 is performed.

In the process 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 attachment surface 110a and the wall surface W, and it is inspected whether or not it is inclined. This inspection can be performed, for example, by visually comparing 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 the washer 141 interposed therebetween. On the other hand, when it is determined that the base plate 110 is inclined in the above inspection, 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 wall surface W in FIG. 23 is recessed on the right side in the x direction, the washer 141 is installed so as to overlap the screw hole 112 near the right end in the x direction. The inclination of the base plate 110 can be corrected by repeating the operation of clamping the washer 141 and the inspection. 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 hole 121a and then screwing it into the screw hole 111a.

The step of attaching the LED unit 2 to the recess 10 a is performed by pushing the LED unit 2 between the pair of locking pieces 11 a of the holder 11 . By doing so, the pair of locking pieces 11a are temporarily separated from each other by slightly bending the flexible portion 11b. Thereafter, as shown in FIG. 20, the locking piece 11a is engaged with the locking groove 323 of the support member 3, thereby fixing the LED unit 2 in the concave portion 10a so as not to move in the y and z directions.

Next, the action of the LED illumination device A4 will be described.

According to this embodiment, when attaching the base plate 110 to the wall surface W as described above, the washer 141 can be used to adjust the position of the base plate 110 in the z direction. Therefore, as shown in FIG. 23, it is possible to attach the base plate 110 to the wall surface W having a recess so as not to incline. Furthermore, by adjusting the number of washers 141, it is possible to cope with cases where the dent is large or small.

According to this embodiment, the base plate 110 and the wing portion 120 are connected by screws 131 at least at three locations near both ends in the x direction and near the center, and do not move relative to each other after connection. Furthermore, the LED unit 2 is fixed to the recess 10a so as not to move 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 portions 120 and the LED units 2 attached therebelow 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. In addition, even when a plurality of LED lighting devices A4 are arranged side by side, it is possible to prevent a situation in which some of the LED lighting devices A4 are tilted, and to maintain a beautiful appearance.

In the LED illumination device A4, as shown in FIG. 25, instead of the washer 141, a spring 142 can be used as an adjustment member. The spring 142 is expandable and contractable in the z-direction, and is an example of the elastic member according to the present invention. The spring 142 is arranged such that its upper end in the z direction contacts the recessed portion of the wall surface W and its lower end in the z direction contacts the mounting surface 110a. The spring 142 is sandwiched between the wall surface W and the mounting surface 110a in a state in which it has contracted more than its natural state, and functions to separate them appropriately. Such a spring 142 is preferably used, for example, when the wall surface W is recessed to such an extent that many washers 141 need to be attached.

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

Figures 26-28 describe another adjustment member that can be used with the LED lighting device A4. 26 and 28 show how the base plate 110 is attached to the wall surface W' having a shape that bulges on the left side in the x direction. The base plate 110 shown in FIGS. 26-28 includes a laminate 143 as an adjustment member.

As shown in FIGS. 26 and 27, the laminate 143 is composed of a plurality of seals 144 laminated on the mounting surface 110a so as to be peelable from the top. The seal 144 is an example of the film-like member referred to in the present invention. The laminate 143 is installed, for example, near both ends and near the center in the x direction.

FIG. 26 shows a state in which the base plate 110 is pressed against the wall surface W' without removing the seal 144 at all.

FIG. 28 shows the base plate 110 attached to the wall surface W' after adjustment has been performed. Adjusting operations on laminate 143 are performed by removing seal 144 instead of adding washer 141 . According to FIG. 28, the seal 144 of the laminate 143 near the left end in the x direction of the base plate 110 has all been peeled off, and the seal 144 of the laminate 143 near the center has been partially peeled off.

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

Although the washer 141 is used in FIG. 29, the spring 142 or the laminate 143 may be used. When using the laminate 143 , the laminate 143 is installed on the bulging portion 111 .

30-32 show an LED lighting device according to a fifth embodiment of the invention. The LED illumination device A5 of this embodiment differs from the above-described embodiment in the configuration of the mount 1. FIG. In this embodiment, the mount 1 consists of two base fittings 150 and two holders 11 . Note that the screw 132 is omitted in FIG. 31 for convenience of understanding. Moreover, the configuration of the mount 1 in this embodiment can also be applied to the above-described 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 11 a 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 substantially 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. Base metal fitting 150 is formed, for example, by punching 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 thereto.

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 extension 150b. The screw hole 112 is for inserting the screw 132, and has an elongated hole portion 112a and a concave portion 112b. In this embodiment, the longitudinal direction of the elongated hole portion 112a is the y direction. In order to achieve the effects intended by the present invention, which will be described later, the long axis direction of the elongated hole-shaped portion 112a should be perpendicular to the z-direction and different from the x-direction. The recessed portion 112b is a portion recessed in the x direction from the center of the elongated hole-shaped portion 112a.

In this embodiment, each base metal fitting 150 is provided with two screw holes 112 so as to sandwich the LED unit 2 . In addition, as shown in FIG. 31, two base metal fittings 150 and holders 11 are spaced apart in the x direction.

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

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

If it is found that the y-direction position is shifted with respect to the adjacent LED lighting device A5, loosen the screw 132 and shift the LED lighting device A5 to the left in the x-direction as shown in FIG. As a result, each screw 132 moves from inside the concave portion 112b to inside the elongated hole portion 112a. In this state, the LED illumination device A5 can be moved in the y-direction by the length of the slotted portion 112a minus the diameter of the screw 132. In FIG.

Next, as shown in FIG. 35, the LED illumination device A5 is shifted in the y direction. This figure shows the operation of moving the LED lighting device A5 downward in the plane of the paper since the position of the LED lighting device A5 has shifted upward in the plane of the paper. After confirming that the y-direction position of the LED lighting device A5 matches that of the adjacent LED lighting device A5, the screw 132 is tightened. As described above, the position adjustment of the LED lighting device A5 is completed.

Next, the action of the LED illumination device A5 will be described.

According to this embodiment, after mounting the LED lighting device A5, it is possible to easily eliminate, for example, the deviation in the y direction from the adjacent LED lighting device A5. There is no need to remove the LED unit 2 to perform this adjustment work. For one base metal fitting 150, the two screw holes 112 are spaced apart in the y direction with the LED unit 2 interposed therebetween, so that the base metal fitting 150 and thus the LED unit 2 can be stably fixed to the wall surface W. can be done.

Furthermore, two separate base metal fittings 150 are spaced apart in the x-direction. As a result, the two base metal fittings 150 can be moved independently of each other, for example, within the range of the gap between the screw hole 112 and the screw 132 or the looseness between the holder 11 and the LED unit 2 . As a result, for example, the operation of loosening the screw 132 fastening one base metal fitting 150 to finely adjust the position of this base metal fitting 150 is less likely to be hindered by the other base metal fitting 150 remaining fixed. This is suitable for facilitating the position adjustment work of the LED illumination device A5.

Since the LED unit 2 is slidable in the x direction with respect to the holder 11, it is very easy to adjust the position of the LED unit 2 in the x direction. That is, in addition to the position adjustment in the y direction using the screw holes 112, the position adjustment in the x direction using the slide allows the LED units 2 of the plurality of LED lighting devices A5 arranged in series, for example, to be aligned with each other. can be adjusted appropriately in the x and y directions.

Prior to the position adjustment described above, when attaching the LED lighting device A5 to the wall surface W, the screw 132 is positioned in the recess 112b. As a result, it is possible to prevent the base fitting 150 from being unduly displaced in the y direction with respect to the screw 132 during the mounting operation. Since the recessed portion 112b and the slotted portion 112a are connected, the y-direction position adjustment work can be quickly started by positioning the screw 132 in the slotted portion 112a as shown in FIG. can.

FIG. 36 shows a modification using a screw hole 112 having an elongated hole portion 112a and a recessed portion 112b. The base plate 110 shown in this figure has the same configuration as the base plate used for the LED illumination device A4 shown in FIG. In the base plate 110 of this modified example, three screw holes 112 are spaced apart from each other in the x direction. Such a modified example can also appropriately adjust the position of the LED illumination device A5.

37-39 show an LED illumination device according to a sixth embodiment of the invention. The LED lighting device A6 of this embodiment differs from the above-described LED lighting device A3 mainly in the shape and installation position of the holder 11, but the rest of the configuration is the same as that of the LED lighting device A3, and the description is omitted as appropriate. do. Note that the base plate 110 and the wing portions 120 are omitted in FIG. 39 for simplification. Moreover, the configuration of the holder 11 in this embodiment can also be applied to the above-described LED lighting devices A1 and A5.

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

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

As shown in FIG. 39, the head portion of the screw 33 is fitted into the notch portion 11c of the holder 11. As shown in FIG. 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 matches the position of the screw 33 in the x direction when the LED unit 2 is properly installed.

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

Next, the action of the LED illumination device A6 will be described.

According to this embodiment, the LED unit 2 is fixed to the wing portion 120 so as not to move in the x direction by fitting the head portion of the screw 33 into the pair of notch portions 11c. Therefore, even if the support 1 is tilted when the LED lighting device A6 is attached to the ceiling, the LED unit 2 does not slip along the x direction. Therefore, it is possible to prevent the LED unit 2 from coming off when and after the LED lighting device A6 is attached to the ceiling.

In the above embodiment, the plurality of screws 33 and the plurality of holders 11 correspond to each other in number and arrangement, but one notch 11c of one holder 11 is fitted with one screw 33. It is possible to obtain the effects of the present invention. In this case, the holder 11 shown in FIG. 9 may be used as the holder 11 installed at a position not overlapping the screw 33 in the x direction.

FIG. 40 shows a modification of the LED illumination device A6. Note that the base plate 110 and the wing portions 120 are omitted in FIG. 40 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 similar to that shown in FIG.

In such an LED lighting device A6 as well, since the holder 11 is sandwiched between the two screws 33, the movement of the LED unit 2 in the x direction is impossible. Therefore, such an LED lighting device A6 can also prevent the LED unit 2 from falling off during and after attachment to the ceiling.

FIG. 41 shows another modification of the LED illumination device A6. Note that the base plate 110 and the wing portions 120 are omitted in FIG. 41 for simplification. In the LED lighting device A6 shown in FIG. 41, a pair of holders 11 support 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 adjacent to the left end of the left holder 11 in the x-direction. Further, a screw 33 is provided adjacent to the right end of the right holder 11 in the x direction.

In such an LED lighting device A6 as well, the 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 is prevented from moving in the x direction. there is Therefore, the LED unit 2 is less likely to come off when and after the LED lighting device A6 is attached to the ceiling.

42 and 43 show an LED lighting device according to a seventh embodiment of the invention. The LED lighting device A7 of this embodiment differs from the above-described LED lighting device A3 mainly in the configuration of the mount 1, particularly the structure for fixing the LED unit 2, but the rest of the configuration is different from that of the LED lighting device A3. It is the same, and the description is omitted as appropriate. The configuration for fixing the LED unit 2 in this embodiment can also be applied to the above-described LED lighting devices A1 and A5.

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

The holder 13 is formed by bending a metal plate, for example, and has a locking piece 13a, a flexible portion 13b, and a fixed portion 13c. As shown in FIG. 43, the locking piece 13a is inclined so as to move away from the LED unit 2 in the y direction as it moves away from the bottom plate portion 121 in the z direction. The flexible portion 13b is inclined so as to approach the LED unit 2 in the y direction as the distance from the bottom plate portion 121 in the z direction increases. One end of the flexible portion 13b supports the locking piece 13a, and the other end of the flexible portion 13b is connected to the fixed portion 13c. The fixing portion 13 c is a plate-like member provided so as to overlap the bottom plate portion 121 and is fixed to the wing portion 120 via screws 131 . A plurality of holders 13 are arranged along the x direction.

The outer portion 322 of the LED unit 2 is formed with a convex portion 323A projecting 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 in the y-direction and the outer portion 322 on the left side in the y-direction are formed by arranging the same components in opposite directions, and are symmetrical on the left and right. As shown in FIG. 43, the protrusion 323A on the right side of the drawing is engaged with the restricting member 125. As shown in FIG. Further, the locking piece 13a is engaged with the locking groove 323 provided in the projection 323A on the left side in the figure.

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 concave portion 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 deep into the recess 10a, the state shown in FIG. 45 is obtained. At this time, the locking piece 13 a of the holder 13 is fitted into the locking groove 323 . After that, when the holder 13 deforms to return to its original shape, the LED unit 2 moves rightward in the y direction until it contacts the restricting member 125 . At this time, the convex portion 323A is locked by the restricting member 125. As shown in FIG.

46 shows how the LED unit 2 is removed from the wing portion 120. FIG. As 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 13 a of the holder 13 . Then, the flexible portion 13b is elastically deformed, and the locking piece 13a retreats leftward in the figure. As a result, the engagement state between the locking piece 13a and the locking groove 323 is released. Furthermore, by moving the LED unit 2 to the left in the y direction, the engagement state between the restricting 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 action of the LED illumination device A7 will be described.

According to this embodiment, the LED unit 2 is always pressed against the regulation member 125 by the elastic force of the holder 13 in the recess 10a. Therefore, the y-direction position of the LED unit 2 is determined by the restricting member 125 . Therefore, the y-direction position of the LED unit 2 can be set accurately. Furthermore, according to the present embodiment, since the projection 323A is locked by the regulation member 125, the position of the LED unit 2 in the recess 10a in the z direction is also determined by the regulation member 125. FIG. As described above, for example, when a large number of LED lighting devices A7 are installed on the ceiling, it is possible to prevent the positions of the LED units 2 in the y-direction and the z-direction from varying, thereby improving the appearance.

FIG. 47 shows an LED lighting device according to an eighth embodiment of the invention. The LED lighting device A8 shown in FIG. 47 differs from the above-described LED lighting device A3 mainly in the structure of the base plate 110, but the rest of the configuration is the same as that of the LED lighting device A3, and a description thereof will be omitted as appropriate. The configuration of the base plate 110 in this embodiment can also be applied to the above-described LED lighting devices A1 and A5.

In this embodiment, the base plate 110 includes an elongated long plate portion 113 extending in the x-direction, plate-like members 114 and 115 extending downward in the z-direction from both ends of the long plate portion 113 in the y-direction, and two plate-like members. 114b. As best shown in FIG. 48, the base plate 110 is formed with two notches 114a spaced apart in the x direction. Each cutout portion 114a has a predetermined length in the x direction, extends over the entire length of the plate member 114 in the z direction, and is formed by cutting the long plate portion 113 by a predetermined length in the y direction. The pair of plate-like members 114b protrude downward in the z-direction from the y-direction end of each notch 114a, and are formed so as to overlap each other when viewed in the x-direction.

As shown in FIG. 49, the end portion of the long plate portion 113, the plate-like member 114, and the pair of plate-like members 114b form a pair of light shielding portions 116 surrounding the hollow portion 116a in the x-direction view (yz plane). forming The base plate 110 is provided with two cavity portions 116 a and two light shielding portions 116 spaced apart from each other in the x-direction, particularly arranged at the opposite ends of the base plate 110 .

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

When the position of the base plate 110 in the y-direction is at an appropriate position that matches the position of the base plate 110′ in the y-direction, the laser light Lx is emitted between each plate-like member 114b of the base plate 110 and the plate-like member 114, that is, It passes through cavity portion 116a. Conversely, if the laser light Lx does not pass between one or both of the plate-like members 114 b and the plate-like member 114 of the base plate 110 , the laser light Lx is blocked by the light shielding portion 116 . Accordingly, it can be determined that the position of the base plate 110 in the y direction is deviated from the proper position.

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

According to this embodiment, by adjusting the y-direction position of the base plate 110 so that the laser light Lx passes through both cavity portions 116a, the position of the base plate 110 in the y-direction can be made appropriate. can. Such adjustment is performed, for example, by moving the base plate 110 in the y-direction and visually confirming whether the laser light Lx passes between the plate-like member 114b and the plate-like member 114. FIG. According to such an adjustment, the laser light Lx is blocked by the light shielding portion 116 before and after reaching 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 portions 120 and the LED units 2 mounted under the base plate 110 are aligned, and the appearance of the plurality of LED lighting devices A8 mounted on the ceiling is improved.

FIGS. 50 to 52 show modified examples of the light blocking portion 116, respectively.

The base plate 110 shown in FIG. 50 is provided with a plate-like member 114c projecting leftward in the y direction from the lower end of the plate-like member 114b. The left end portion of the long plate portion 113 in the drawing, the plate member 114, the plate members 114b, and the plate member 114c form a light shielding portion 116 surrounding the hollow portion 116a when viewed in the x direction (yz plane).

According to such a modification, in addition to the position adjustment in the y direction, position adjustment in the z direction can be performed by a similar technique.

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 in a substantially annular shape surrounding the hollow portion 116a when viewed in the x direction. Such a light shielding portion 116 also has an effect similar to that of the light shielding portion 116 shown in FIG.

A 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. Apart from this, another light shielding portion 116 is provided at the other end in the x direction (not shown). The y-direction positions of these light shielding portions 116 match each other. The light shielding portion 116 can be formed relatively easily, for example, by bending a plate piece protruding from the long plate portion 113 in the x direction.

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

FIG. 53 shows an LED lighting device according to the ninth embodiment of the invention. The LED lighting device A9 of this embodiment differs from the above-described LED lighting device A7 mainly in the structure of the cover 4, but the rest of the configuration is the same as that of the LED lighting device A7, and a description thereof will be omitted as appropriate. In addition, the configuration of the cover 4 in the present embodiment and modifications can also be applied to the above-described LED lighting devices A1, A3, and A5.

FIG. 54 shows an enlarged 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 surroundings, but the rest of the configuration is the same as 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 that diffuses and transmits the light from the LED module 20 and is made of, for example, a milky-white resin. The central portion 43 is an area centered just 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, the more light is diffused, and the light transmittance is lowered. Therefore, the light transmittance in the central portion 43 is smaller than that in other regions. For example, the light transmittance in the central portion 43 is approximately 75%, and the light transmittance in other regions is approximately 85%.

The cover 4 is formed such that the distance from the LED module 20 is the smallest at the center portion 43 and the distance from the LED module 20 increases as the distance from the center portion 43 increases in the y direction. Therefore, the intensity of the light from the LED modules 20 reaching the central portion 43 is greater than the intensity of the light from the LED modules 20 reaching the other regions.

According to the LED illumination device A9, by reducing the light transmittance in the central portion 43 where relatively strong light reaches, the light emitted from the central portion 43 and the light emitted from other regions are approximately the same. becomes the strength of Therefore, when the LED lighting device A9 is turned on, it is possible to suppress the unevenness of the light emitted from the cover 4, thereby preventing the individual LED modules 20 from being arranged in spots. can do. Therefore, it is possible to improve the appearance of the LED lighting device A9 when it is lit.

FIG. 55 shows a modification of the cover 4. As shown in FIG. 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 in the light emitted from the cover 4 .

FIG. 56 shows another modification of the cover 4. As shown in FIG. The cover 4 shown in FIG. 56 is formed so that its thickness gradually increases from the ends toward the center in the y direction. Such a cover 4 is thicker at a portion closer to the LED module 20 . This makes it possible to further suppress unevenness in the light emitted from the cover 4 when the LED illumination device A9 is lit. Therefore, it is possible to improve the appearance of the LED lighting device A9 when it is lit.

FIG. 57 shows still another modification of the cover 4. As shown in FIG. The cover 4 shown in FIG. 57 has a uniform 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 of the area other than the central portion 43 of the cover 4 is about 85%, and the light transmittance of 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.

FIG. 58 shows still another modification of the cover 4. As shown in FIG. The cover 4 shown in FIG. 58 has a uniform thickness, and the diffusion member 44 is provided so as to overlap the central portion 43 . The light transmittance of 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 where the diffusion member 44 is superimposed is about 75%. Even if the cover 4 having such a diffusion member 44 is used, it is possible to suppress the unevenness of the light emitted from the cover 4 . Furthermore, when the diffusion member 44 is prepared separately from the cover 4, there is an advantage that the manufacture of the cover 4 itself becomes easy.

59 and 60 show an LED lighting device according to the tenth embodiment of the invention. As shown in FIG. 59, the LED lighting device A10 of this embodiment is composed of a base plate 110 attached to a horizontal wall surface W, wings 120 attached to the base plate 110, and LED units 2 attached to the wings 120. ing. The LED lighting device A10 differs from the above-described LED lighting device A7 mainly in the structure of the base plate 110, but the rest of the configuration is the same as that of the LED lighting device A7, and a description thereof will be omitted as appropriate. The configuration of the base plate 110 in this embodiment can also be applied to the above-described LED lighting devices A1, A3, and A5. 61 and 62 show how the base plates 110 of the two LED lighting devices A10 arranged in the x direction are attached to the wall surface W. FIG. In addition, the wall surface W is a ceiling surface, for example.

The base plate 110 of this 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 indicator portions 110b and 110c and the plurality of screw holes 112c are all formed along a center line Cy passing through the center of the base plate 110 in the y direction. The indicator portions 110b and 110c are wedge-shaped notches whose length in the y direction decreases as the distance from the end of the base plate 110 increases in the x direction. The index portions 110b and 110c have a shape symmetrical with respect to the center line Cy, and the wedge-shaped tip is positioned 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 respect to the center line Cy when viewed in the z direction. Furthermore, as well shown in FIG. 62, the screw hole 112c is integrally formed with the index portion 112d. The index portion 112d has a shape symmetrical with respect to the center line Cy, and is wedge-shaped like the index portions 110b and 110c.

The process of attaching the two LED lighting devices A10 to the wall surface W of the base plate 110 will be described below. Note that the two base plates 110 may be attached to the wall surface W sequentially or simultaneously.

First, a step of forming a linear index Lw extending along the x direction on the wall surface W is performed. The linear 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 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 the linear index Lw. Thereafter, as shown in FIG. 61, the base plate 110 is attached to the wall surface W by screwing the screws 132 into the wall surface W through the screw holes 112c.

In such an LED lighting device A10, by aligning the index portions 110b, 110c and 112d with the linear index Lw as described above, the arrangement of the base plate 110 is adjusted so that the center line Cy coincides with the linear index Lw. It is possible. Therefore, when attaching a plurality of base plates 110 as shown in FIGS. 61 and 62, the orientation of each base plate 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 improved.

FIG. 63 shows another embodiment of the indicator portion 110c. Note that not only the indicator portion 110c but also the indicator portions 110b and 112d can have the same shape.

The index portion 110c shown in FIG. 63 is formed to have a larger wedge shape when viewed in the z direction as the distance from the mounting surface 110a increases in the z direction. Such a shape of the indicator portion 110c is designed so that the worker can easily check the overlap of the indicator portion 110c and the linear indicator Lw from diagonally below when attaching the LED lighting device A10 to the ceiling.

64 to 66 show yet another embodiment of the indicator portions 110b, 110c. The indicator portions 110b and 110c shown in FIG. 64 are formed as projections protruding from both ends of the base plate 110 in the x direction. 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 on both ends of the base plate 110 and have a triangular shape.

FIG. 67 shows an LED lighting device according to the eleventh embodiment of the invention. The LED lighting device A11 of this embodiment differs from the above-described LED lighting device A7 mainly in the configuration of the LED unit 2, but the rest of the configuration is the same as that of the LED lighting device A7, and a description thereof will be omitted as appropriate. The configuration of the LED unit 2 in this embodiment can also be applied to the above-described LED lighting devices A1, A3, and A5. FIG. 68 shows a perspective view of the main part of the LED unit 2 of the LED lighting device A11, and FIG. 69 is a cross-sectional view showing the cross section of the main part shown in FIG. 68 in more detail. The LED unit 2 shown in FIGS. 68 and 69 includes an illuminance confirmation LED chip 20a, a notification LED chip 20b, and detection means 54 in addition to the configuration of the LED unit 2 shown in FIG. 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. As shown in FIG. According to FIG. 70, the power supply board 52 includes, in addition to the illuminance confirmation LED chip 20a and the detection means 54 already mentioned, a transformer T for converting AC voltage from the AC power supply E into a DC voltage, switches S1 and S2, and voltage detection means. 55, resistors 56a and 56b, and a resistor 57 for adjustment. Transformer T, switches S1 and S2, voltage detection means 55, resistors 56a and 56b, and adjustment resistor 57 are included in electronic component 53 of FIG. 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 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 illuminance confirmation LED chip 20a is installed in the center of the power supply board 52 in the x direction. The illuminance confirmation LED chip 20a is of 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.

The detection means 54 is composed of 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 opposite side of the main emission direction of the LED module 20 in the z-direction of the power supply board 52, and is located at the same position in the x-direction as the illuminance confirmation LED chip 20a but separated in the y-direction. are arranged as The detector 54 receives light from the illuminance confirmation LED chip 20 a and outputs a voltage corresponding to the illuminance to the voltage detector 55 .

As shown in FIG. 69, a case 51 having a U-shaped cross-section having a bottom portion upward in the z-direction is fitted in a housing space 32a formed by a bracket 32 having a U-shaped cross-section having a bottom portion downward in the z-direction. there is Therefore, the inside of the case 51 is cut off from the outside on the yz plane.

The notification LED chip 20b is mounted on the substrate 31 and emits red light, for example. The position of the notification LED chip 20b may be anywhere on the substrate 31. FIG. When the switches S1 and S2 are ON, the notification LED chip 20b receives power from the power supply board 52 and lights up. 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. This resistor 56b is formed to have the same resistance as 11 LED chips 22 connected in series, for example.

The switch S1 is a switch for switching ON/OFF of the 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 illuminance confirmation LED chip 20a is also turned on at the same time.

The resistor 56a is installed in series with the illuminance confirmation LED chip 20a. As described in the LED lighting device A1, a set of 12 LED chips 22 connected in series is provided. The resistor 56a is provided to make the voltage applied to the illuminance confirmation LED chip 20a approximately the same as the voltage applied to one LED chip 22. 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 confirmation LED chip 20a so that heat generated during driving does not easily affect the illuminance confirmation LED chip 20a. desirable.

The adjustment resistor 57 is installed in series with the illuminance confirmation LED chip 20a and the resistor 56a. This adjustment 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 illuminance confirmation LED chip 20a are both made of glass epoxy resin. Superior in functionality. Therefore, even if the same voltage is applied to the illuminance confirmation LED chip 20a as each LED chip 22, the illuminance confirmation LED chip 20a will be hotter 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 both change. Therefore, in order to make the change speed of the illuminance confirmation LED chip 20a approximately equal to the change speed of the LED chip 22, it is necessary to reduce the voltage applied to the illuminance confirmation LED chip 20a. In consideration of the above points, the resistance value of the adjustment resistor 57 is adjusted so that the change speed of the illuminance confirmation LED chip 20 a is approximately the same as the change speed of the LED chip 22 .

The voltage detection means 55 functions to turn on the switch S2 when the voltage output from the detection 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 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 cut off from the outside. Therefore, the detection means 54 is not affected by external light and light from the LED module 20 . Therefore, the detector 54 can detect only the light from the illuminance confirmation LED chip 20a, and more accurately output a voltage corresponding to the illuminance of the illuminance confirmation LED chip 20a to the voltage detector 55. FIG.

The illuminance confirmation LED chip 20a also changes at the same speed as the LED chip 22 changes. As the illuminance confirmation LED chip 20a changes, the amount of light received by the detection means 54 gradually decreases, and the voltage detected by the voltage detection means 55 decreases. Then, when the voltage detected by the voltage detection 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 such an extent that the LED unit 2 needs to be replaced, the notification LED chip 20b lights up. Thereby, the user can easily know that the replacement of the LED unit 2 is required. Therefore, in the LED lighting device A11, the LED unit 2 can be replaced at an appropriate time, and good-looking lighting can always be provided.

Furthermore, in this 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 conspicuous, and the user easily notices that it is time for replacement. Note that 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, by providing the adjustment resistor 57, the change speed of the illuminance confirmation LED chip 20a is matched to the change speed of the LED chip 22. is. Even in this case, the illuminance confirmation LED chip 20 a is lit at the same time as the LED chip 22 , so the change speed of the illuminance confirmation LED chip 20 a is proportional to the change speed of the LED chip 22 . Therefore, it is possible to estimate the degree of change of the LED chip 22 by knowing the degree of change of the LED chip 20a for illuminance confirmation by the detecting means 54. FIG. Therefore, for example, by adjusting the value of α to be lower than the above value, it is possible to light the notification LED chip 20b when the LED chip 22 has changed to such an extent that it needs to be replaced.

In addition, in the LED lighting device A11, the voltage applied to the illuminance confirmation LED chip 20a is matched to the voltage applied to each LED chip 22 by providing the resistor 56a. Twelve chips 20a may be connected in series.

FIG. 71 shows an LED lighting device according to the twelfth embodiment of the invention. The LED lighting device A12 of this embodiment differs from the above-described LED unit A3 mainly in the configuration of the LED unit 2, but the rest of the configuration is the same as that of the LED lighting device A3, and a description thereof will be omitted as appropriate. The configuration of the LED unit 2 in this embodiment can also be applied to the above-described 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 thereto in the LED unit 2 shown in FIG. 52 are 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 description thereof will be omitted as appropriate.

The wire group 36 includes a main wire 361 extending along the x-direction and a connecting wire 362 . The main wire 361 is a resin cable including a power line 361a that supplies power to the power supply board 52 and a signal line 361b that transmits a signal instructing the power supply board 52 to turn on/off or adjust the brightness, for example. Note that 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 at the bottom right corner of the case 51 . Both ends of the main wire 361 in the x direction protrude outward from both ends of the case 51 in the x direction. 73, the connecting line 362 is connected at its lower end to the main electric wire 361, and is a resin cable containing electric wires extending from, for example, the power line 361a and the signal line 361b. The upper end of the connecting line 362 in the drawing is connected to the power supply substrate 52 via the connector 34c.

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

When the LED units 2 are not arranged in the x direction and are used alone, the connectors 34a and 34b are connected to a power supply source built in the ceiling, for example. When a plurality of LED units 2 are arranged side by side in the x direction, the connectors 34a and 34b of the LED units 2 located at both ends in the x direction, which are not used for connection with other LED units 2, are used for power supply. connected to the supply.

In the fluorescent lamp and the conventional LED lighting device X, since the fluorescent lamp and the conventional LED lighting device X are used by being attached to a general-purpose fluorescent lighting fixture installed in advance on the ceiling or the like, the wires are not exposed to the outside. On the other hand, in the LED lighting device A12, power supply to the LED unit 2 is performed by the wire group 36. As shown in FIG. Unlike the present embodiment, if the wire group 36 is exposed to the outside, the appearance of the LED lighting device A12 as a whole is spoiled. In this embodiment, the 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, only the portions connected to the connectors 34a and 34b are visible from the outside. Therefore, in the LED lighting device A12, the exposure of the wire group 36 to the outside is minimized, and it is possible to obtain a more attractive appearance.

Furthermore, according to the present embodiment, most of the wire group 36 is accommodated in the LED unit 2, so when attaching the LED unit 2 to the mount 1 or removing the LED unit 2 from the mount 1, It is less likely to interfere with work. Therefore, in the LED lighting device A12, it is possible to replace the LED unit 2 easily and quickly.

Furthermore, when a plurality of LED lighting devices A12 are arranged side by side in the x direction, by joining the connectors 34a and 34b as shown in FIG. It can be electrically connected easily.

Furthermore, according to this embodiment, the main wire 361 is installed at a position relatively distant from the power supply board 52 and the electronic components 53 inside the case 51 . Therefore, interference between the current flowing through the main wire 361 and the power supply board 52 and the electronic components 53 can be suppressed.

FIG. 74 shows an LED lighting device according to the thirteenth embodiment of the invention. The LED lighting device A13 of this embodiment differs from the above-described LED lighting device A12 mainly in the arrangement and holding means of the wire group 36, but the rest of the configuration is the same as that of the LED lighting device A12. omitted. The configuration of the LED unit 2 in this embodiment can also be applied to the above-described 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. In the LED unit 2 shown in FIGS. 74 and 75, the wire group 36 is held by the holder 51b provided in the case 51, and the base portion 321 is partially deformed. Since it is the same as the LED unit 2 shown in FIG. 73, the description will be omitted as appropriate.

The holder 51b is formed on the outside of the upper part of the case 51 in FIG. In this embodiment, a plurality of holders 51b are arranged along the x direction. The base portion 321 in this embodiment is formed so that the upper end portion thereof in the z-direction is higher than the upper end portion of the holder 51b in the z-direction. The connecting line 362 passes through the upper portion of the case 51 and is connected to the upper side of the power supply board 52 in the figure via the connector 34c.

In such an LED lighting device A13, as in the LED lighting device A12, the wire group 36 is difficult to be seen from the outside, and a more attractive appearance can be realized. Furthermore, in this embodiment, since the main wire 361 is arranged outside the case 51 , interference between the current flowing through the main wire 361 and the power supply board 52 and the electronic components 53 can be prevented.

FIG. 76 shows an LED illumination device according to the fourteenth embodiment of the invention. The LED lighting device A14 of this embodiment differs from the above-described LED lighting device A12 in the configuration of the bracket 32 and the arrangement of the wire group 36, but the rest of the configuration is the same as the LED lighting device A12. omitted. The configuration of the bracket 32 in this embodiment can also be applied to the above-described 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 accommodated in the concave portion 32b provided in the bracket 32. As shown in FIG. Other configurations are the same as those of the LED unit 2 shown in FIGS. 71 to 73, and description thereof will be omitted as appropriate.

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

In the LED lighting device A14 as well, like the LED lighting device A12, the wire group 36 is difficult to be seen from the outside, and a more attractive appearance can be realized. Furthermore, in this embodiment, since the main wire 361 is arranged outside the case 51 , interference between the current flowing through the main wire 361 and the power supply board 52 and the electronic components 53 can be prevented.

FIG. 78 shows an LED lighting device according to the fifteenth embodiment of the invention. The LED lighting device A15 of the present embodiment includes a holder 14 instead of the holder 11, but other configurations are the same as those of the LED lighting device A3, and 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. FIG. The configuration of the holder 14 of this embodiment can also be applied to the above-described LED lighting devices A1 and A5.

Like the holder 11, the holder 14 is formed by, for example, bending a metal plate, and includes a pair of locking pieces 14a, a pair of flexible portions 14b, a base portion 14c, and a bent portion. It has a portion 14e and a bent portion 14f. The bent portions 14e and 14f are portions formed by bending the metal plate. Unlike the holder 11, the holder 14 cuts out a portion of the metal plate before bending. A notch 14d is formed in the holder 14 by this processing. The bent portion 14e is divided in the x direction in FIG. 79 by the notch 14d. The length in the x direction of the notch 14d is set so that the length in the x direction of the bent portion 14e is the same as the length in the x direction of the bent portion 14f.

As shown in FIGS. 79 and 80, the base portion 14c supports a pair of flexible portions 14b via bent portions 14e. The flexible portion 14b supports the locking piece 14a via the bent portion 14f. When an external force is applied to the pair of flexible portions 14b, the pair of locking pieces 14a can be elastically deformed in a direction to move the pair of locking pieces 14a toward and away from each other. A pair of locking pieces 14a is a portion that engages with the LED unit 2, and is inclined so that the distance between them decreases upward in FIG. 80(a). In this embodiment, a plurality of holders 14 are provided within the recess 10a. Each locking piece 14a is provided with a projecting portion 14g. The protruding portion 14g protrudes toward the base portion 14c in the inclination direction of the locking piece 14a. The projecting portion 14g is a portion where the locking piece 14a directly locks into the locking groove 323 of the support member 3. As shown in FIG.

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

On the other hand, in the holder 14, the notch 14d is provided so that the length in the x direction of the bent portion 14e is the same as the length in the x direction of the bent portion 14f. 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 evenly deformed. . Therefore, in the holder 14, only one of the bent portion 14e and the bent portion 14f is less likely to be 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 desirable 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 is also possible to implement the case where it is formed only in either the flexible portion 14b or the base portion 14c. is. Moreover, the present invention is effective even in the case where only one locking piece 14a and one flexible portion 14b are provided, such as the holder 13, for example.

81 to 85 show an LED lighting device according to the sixteenth embodiment of the invention. As shown in FIGS. 81 and 82, the LED illumination device A16 of the present embodiment has an L-shape in plan view, and is symmetrical about a central line Cxy inclined at 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, a plurality of holders 11 attached to appropriate positions of the first and second supports 10A and 10B, and 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 wings 120. As shown in FIG. 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 plurality of screw holes 112 . The wing portion 120 has a bottom plate portion 121, two wall portions 122, and two arcuate portions 123, and is made of opaque resin or aluminum, for example. The bottom plate portion 121 is formed in an elongated plate shape that is wider than the base plate 110 when viewed in the z direction. In this embodiment, the bottom plate portion 121 is integrated with the base plate 110 . The two wall portions 122 stand up 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. As shown in FIG. The two arcuate portions 123 extend from the z-direction lower ends of the two wall portions 122 and are arranged with the recess 10a interposed therebetween. The arcuate portion 123 in this embodiment has a flatter shape as compared with, for example, the arcuate portion 123 in the LED illumination device A3. Further, the upper arcuate portion 123 in FIG. 86 is formed to be longer than the lower arcuate portion 123 . According to FIG. 86, the positions of the left ends of the upper and lower arcuate portions 123 are aligned, but the positions of the right ends are different. The right end of the upper arcuate portion 123 in FIG. 86 is positioned to the right of the right end of the lower arcuate portion 123 . A line connecting the right ends of the upper and lower arcuate portions 123 is inclined at 45° with respect to the longitudinal direction of the first support 10A.

The second support 10B is obtained by transposing the first support 10A upside down in FIG. As shown in FIG. 81, the shorter arcuate portion 123 of the second support 10B contacts the shorter arcuate portion 123 of the first support 10A. Also, the longer arcuate portion 123 of the second support 10B is in contact with the longer arcuate portion 123 of the first support 10A.

Each cap 126, as shown in FIGS. 81 and 82, is a member that covers the ends of the first and second supports 10A and 10B that are not in contact with each other in the longitudinal direction. FIG. 91 shows front, side and top views of cap 126 . The cap 126 has a plate portion 126 a for fixing to the bottom plate portion 121 .

According to FIG. 81, an 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 a light emitting portion 2A extending along the y direction. A second light emitting portion 2B is formed extending along the length of the light emitting portion. Each LED unit 2 includes a plurality of LED modules 20, a support member 3, a cover 4, and a power converter 5, as shown in FIG. FIG. 84 shows an enlarged intersection of the first and second light emitting parts 2A and 2B, and FIG. is shown enlarged. 84 and 85, 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 in two rows. Each LED module 20 is the same as that shown in FIG.

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

In this embodiment, as shown in FIG. 84, wiring groups 311 are provided to electrically connect the substrates 31 of the first and second light emitting portions 2A and 2B.

FIG. 87 shows a plan view and left and right side views of the bracket 32 of the second light emitting portion 2B. The left side view of the bracket 32 in FIG. 87 shows the left side in FIG. 84, and the right side view shows the right side in FIG. As shown in FIG. 87, one end face in the longitudinal direction of the bracket 32 is a face orthogonal to the longitudinal direction, and the other end face is a face inclined so as to protrude to the right in the figure as it goes upward in the figure. It has become. This inclined surface is inclined at 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 of the bracket 32 . Further, this bracket 32 has locking grooves 323, 324, 325 similar to the bracket 32 of the LED illumination device A3.

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

The cap 331 is attached to the non-inclined end of each bracket 32 in the longitudinal direction, as shown in FIG. FIG. 89 shows a front view, a side view, and a front view of the cap 331 before attachment. According to FIG. 89, the cap 331 has a pair of foldable plate portions 331a. The pair of plate portions 331a are formed so as to sandwich both side surfaces of the bracket 32 in the folded state. Further, the pair of plate portions 331a are formed with screw holes so that they can be fixed to both side surfaces of the bracket 32 with screws. The lower part of the cap 331 in FIG. 89 has a shape corresponding to the end of the cover 4 . The caps 331 cover the ends of the brackets 32 and the cover 4 to prevent the inside of the LED lighting device A16 from being seen from the outside.

The cap 332 is attached to the slanted end of each bracket 32 in the longitudinal direction, as shown in FIG. FIG. 90 shows a front view, a side view, a plan view, and a front view of the cap 332 before attachment. The front view in FIG. 90 is the front view seen from the direction perpendicular to the center line Cxy in FIG. 84, and the plan view is the view in the z direction. This cap 332 has a shape obtained by stretching the cap 331 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 therethrough. The pair of plate portions 332a are formed so as to sandwich both side surfaces of the bracket 32 in the folded state. Further, the pair of plate portions 332a are formed with screw holes so that they can be fixed to both side surfaces of the bracket 32 with 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 in the figure is inclined at 45° with respect to the x direction. FIG. 88 shows an enlarged side view of this beveled end. Other configurations of the cover 4 of the present embodiment are similar to those of the cover 4 in the LED illumination device A3. Such a cover 4 can be formed, for example, by cutting the cover 4 of the LED lighting device A3 so as to obtain a cut plane inclined at 45° with respect to the longitudinal direction. On the other hand, the cover 4 of the LED unit 2 forming the second light emitting portion 2B has an upper end in FIG. It is formed so as to face the inclined end surface.

A power conversion section 5 is provided in each LED unit 2 of the first and second light emitting sections 2A and 2B. 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 parts of the case 51 in this embodiment, and FIG. 93 shows a developed view. Note that 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 has a plurality of cutouts 51 a and folding portions 51 c and 51 d for holding the power supply board 52 .

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

It is assumed that the LED lighting device A16 is used by being attached to the ceiling, for example, like the LED lighting device A3. Since the LED illumination device A16 is L-shaped as described above, it is suitable for installation along the corner of the ceiling or along a pillar.

When L-shaped lighting is required, for example, two conventional fluorescent lamps or LED lighting devices A3 may be prepared and arranged in an L-shaped manner. However, in such a case, the intersection of the two fluorescent lamps or the LED lighting device A3 does not emit light, and furthermore, it gives a complicated impression to those who see it, resulting in a poor appearance. On the other hand, in the LED lighting device A16, as shown in FIG. 81, the intersection of the first and second light-emitting portions 2A and 2B is covered with the cover 4, which makes it difficult to give a complicated impression to the viewer. ing. For this reason, the LED illumination device A16 has a better appearance than a case in which linear light sources are simply intersected in an L-shape.

In this embodiment, the substrates 31 of the first and second light emitting units 2A and 2B are conductively connected by a wiring group 311. As shown in FIG. Therefore, if there is one external power source, both the first and second light emitting portions 2A and 2B can be lit.

In this embodiment, the cap 332 is sandwiched between the covers 4 of the first and second light emitting portions 2A and 2B. I do not care. Alternatively, the covers 4 of the first and second light emitting portions 2A and 2B may be integrated.

FIG. 94 shows an LED lighting device according to the seventeenth embodiment of the invention. The LED lighting device A17 of the present embodiment differs from the LED lighting device A16 in the shape of the end portion of the substrate 31, and the configuration other than that is the same as that of the LED lighting device A16.

According to FIG. 94, the edge of the substrate 31 of this embodiment has a shape that is inclined along the inclination of the edge of the bracket 32 . That is, each substrate 31 of the present embodiment is obtained by adding an additional portion 31a having a triangular shape in plan view to the end portion of each substrate 31 shown in FIG. As shown in FIG. 94, in each additional portion 31a, a plurality of LED modules 20 are arranged along an arc and symmetrical with respect to the central line Cxy.

In the LED lighting device A17, since a plurality of LED modules 20 are arranged in the additional portions 31a provided at the L-shaped intersections, the L-shaped intersections also emit light. Therefore, the LED lighting device A17 does not reduce the amount of light at the intersection of the L-shape, and can further improve the appearance when lit.

Furthermore, in the present embodiment, since the LED module 20 of each additional portion 31a is symmetrical about the center line Cxy, it is possible to prevent one of the first and second light emitting portions 2A and 2B from becoming unevenly bright. It can be done and looks better.

FIG. 95 shows an LED lighting device according to the eighteenth embodiment of the invention. The LED lighting device A18 of this embodiment differs from the LED lighting device A16 in the structure of the L-shaped intersection, and the other configurations are the same as those of the LED lighting device A16.

In the LED lighting device A18, an additional board 31b having a rectangular shape in plan view is provided at the L-shaped intersection. The additional board 31b is supported by both brackets 32 extending in the x and y directions. In order to install this additional substrate 31b on the bracket 32, in this embodiment, the cap 332 has a shape in which the lower half of FIG. 90(a) is removed. Although omitted in FIG. 95 for simplification, the additional board 31b is conductively connected to both boards 31 by wiring groups.

A plurality of LED modules 20 are mounted on the additional board 31b. For example, as shown in FIG. 95, these LED modules 20 are arranged so as to be symmetrical about the center line Cxy.

In such an LED lighting device A18, the additional substrate 31b is installed at the L-shaped intersection, and the LED module 20 is mounted on the additional substrate 31b, so the L-shaped intersection also emits light. For this reason, the L-shaped crossing portion does not become dark, and the appearance can be further improved.

In this embodiment, the additional substrate 31b is independent from both substrates 31, but the additional substrate 31b may be integrated with any one of the substrates 31. FIG. Furthermore, a board having an L shape in plan view, in which both the boards 31 and the additional board 31b are integrated, may be used.

FIG. 96 shows an LED lighting device according to the nineteenth embodiment of the invention. The LED lighting device A19 of the present embodiment has a substrate 31′ longer than the substrate 31 in the second light emitting section 2B instead of providing the additional substrate 31b, and other configurations are the same as those of the LED lighting device A18. .

In this embodiment, for example, a plurality of LED modules 20 are arranged along the y direction over the entire longitudinal length of the substrate 31'. Even with such an LED lighting device A18, the L-shaped crossing portion emits light, so that the appearance can be further improved.

Figures 97-102 show an LED illumination device according to a twentieth embodiment of the present invention. The LED lighting device A20 of the present embodiment has the above-described points that the wing portions 120 are provided with a pair of outer covers 127 and that the wing portions 120 are directly attached to the mounting surface Ro without the base plate 110 interposed therebetween. Although it is mainly different from the LED lighting device, the rest of the configuration is the same, and the description will be omitted as appropriate. FIG. 97 shows a perspective view of the essential parts of the LED illumination device A20. FIG. 98 shows a cross-sectional view of the LED lighting device A20 shown in FIG. 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. Note that the configuration including the outer cover 127 in this embodiment can also be applied to all of the above-described LED lighting devices including the wing portions 120 .

Each of the outer covers 127 connects to the y-direction end of the wall 122 . The two outer covers 127 are arranged to sandwich the recess 10a. Since the two outer covers 127 are symmetrical with respect to the recess 10a, only one of the outer covers 127 will be described below, and 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. A boundary 127f between the first surface 127b and the second surface 127c is a straight line extending along the x direction. A boundary 127g between the second surface 127c and the third surface 127d is a straight line extending along the x direction. The outer surface 127a is bent at boundaries 127f and 127g.

The first surface 127b has an edge 127e facing the mounting surface Ro and is a mirror surface. The first surface 127b has a strip shape extending along the x direction in plan view. Furthermore, the first surface 127b is planar. In this embodiment, the first surface 127b extends in the direction perpendicular to the mounting surface Ro from the edge 127e (that is, in the z direction). The dimension of the first surface 127b in the z direction is, for example, 5 mm.

The second surface 127c connects with the first surface 127b at a boundary 127f. The second surface 127c has a strip shape extending along the x direction in plan view. Furthermore, 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 matte, for example, it is subjected to hairline processing. The dimension in the z direction of the second surface 127c is, for example, 24 mm. The dimension in the y direction of the second surface 127c is, for example, 15 mm.

127 d of 3rd surfaces are connected with the 2nd surface 127c in 127 g of boundaries. 127 d of 3rd surfaces are strip|belt shape extended along the x direction in planar view. Furthermore, the third surface 127d is a planar mirror surface. The third surface 127 d has an edge 127 h 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 this embodiment, the third surface 127d has a shape extending in the xy plane. The dimension in the y direction of the third surface 127d is, for example, 2 mm.

The wing portion 120 is formed with a plurality of screw holes 120h. Screws (not shown) are screwed into these screw holes 120h to attach the wing portion 120 to the mounting surface Ro and fix the wing portion 120 to the mounting surface Ro.

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

In the LED lighting device A20, the outer surface 127a of the outer cover 127 includes a first surface 127b that is a mirror surface. Therefore, when viewing the LED lighting device A20 attached to the mounting surface Ro, the mounting surface Ro is reflected in the first surface 127b. In addition, the first surface 127b has an edge 127e facing the mounting surface Ro. Therefore, when the mounting surface Ro is reflected on the first surface 127b, the first surface 127b appears to be a continuous portion of the mounting surface Ro. Become. Therefore, such an LED illumination device A20 is suitable for making the thickness (dimension in the z-direction) look smaller.

In the LED lighting device A20, the first surface 127b extends vertically from the edge 127e to the mounting surface Ro. According to such a configuration, the mounting surface Ro reflected in the first surface 127b can be easily seen as if it is a surface that follows the actual mounting surface Ro without bending. This makes it even 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 look smaller.

In the LED lighting device A20, the first surface 127b is planar. The planar first surface 127b accurately reflects the actual mounting surface Ro without distortion. According to such a configuration, the mounting surface Ro reflected in the first surface 127b can be easily seen as if it is a continuous surface to the actual mounting surface Ro. This makes it even 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 look smaller.

In the LED lighting device A20, the outer surface 127a of the outer cover 127 includes a second surface 127c. Since the second surface 127c is not a mirror surface but a matte surface, the mounting surface Ro is not reflected on the second surface 127c. Also, the second surface 127c is connected to the first surface 127b at a linear boundary 127f. If the mounting 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 of the second surface 127c from the boundary 127f can be easily recognized as the portion of the LED lighting device A20. This makes it even 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 look smaller.

In the LED lighting device A20, the outer surface 127a is bent at the boundary 127f. Therefore, it can be recognized as if the boundary 127f is the edge of the LED lighting device A20. Therefore, the part of the outer surface 127a on the side of the second surface 127c from the boundary 127f is more likely to be recognized as the part of the LED lighting device A20. This makes it even 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 look smaller.

103-106 show an LED lighting device according to the twenty-first embodiment of the present invention. The LED lighting device A21 of this embodiment differs from the above-described embodiments in that the majority of the LED lighting device A21 is embedded behind an opening W provided in a wall surface W, such as a ceiling, to which it is attached. . The LED illumination device A21 has a mount 1 and an LED unit 2. As shown in FIG.

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

The mount 1 includes a box portion 15a and a frame portion 15b, and is formed by bending a steel plate having a thickness of about 0.8 mm, for example. The box portion 15a has an elongated rectangular parallelepiped shape, and has a width of about 50 mm, a depth of about 29 mm, and a length of about 1230 mm. . More specifically, as shown in FIGS. 105 and 106, in this embodiment, the height of the LED unit 2 is approximately 32 mm, so the cover 4 of the LED unit 2 is approximately 3 mm in height. 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. As shown in FIG.

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 with a width of a little over 8 mm perpendicular to the end portion of the box portion 15a, that is, parallel to the wall surface W, and a portion extending from this portion toward the wall surface W. and a portion extending 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 engages with the wall surface W. As shown in FIG.

A holder 11 is used to fix the LED unit 2 to the mount 1 . The holder 11 has a configuration similar to that shown in FIGS. 38-41. In this 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 11 d is a portion of a metal plate that is bent so as to protrude toward the LED unit 2 , and is engaged 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 closer to the base than the locking portion 11d, and elastically deforms to allow the locking portion 11d to engage with and separate from the outer portion 322. . As shown in FIG. 107, the holder 11 may have the same configuration as shown in FIGS.

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

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

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

Most of the LED lighting devices A21 are located behind the wall surface W. As shown in FIG. Therefore, it is possible to make the portion protruding from the wall surface W smaller. As a result, the entire wall surface W can be brought into a nearly flat state, and it is possible to give an impression that the room is smart.

By housing the LED unit 2 in the box portion 15a, the LED unit 2 can be arranged at the back of 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. Moreover, 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 wire member, it is less likely to unduly block the light from the LED unit 2 .

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. - 特許庁This is suitable for illuminating a wider range with the LED illumination device A21.

FIG. 108 shows an LED lighting device according to the twenty-second embodiment of the present invention. The LED lighting device A22 of this embodiment differs from the above-described LED lighting device A21 in that it includes a plurality of LED units 2 .

In the LED illumination device A22, the length of the box portion 15a of the mount 1 is approximately the length of the plurality of LED units 2 multiplied by an integer. A plurality of LED units 2 are arranged in series in the box portion 15a.

According to such an embodiment, it is possible to achieve a configuration in which the seams are hardly conspicuous while the length extends from end to end of the ceiling of a relatively large room.

109-112 show an LED lighting device according to the twenty-third embodiment of the present invention. The LED lighting device A23 of this embodiment includes two LED units 2 . As shown in FIGS. 109, 111, and 112, in this embodiment, the width of the box portion 15a is about 100 mm, which is larger than twice the 33 mm width of the LED unit. Thus, two LED units 2 are housed in parallel in the box portion 15a.

Further, in this embodiment, the LED unit 2 is provided with two release levers 162 . Each release lever 162 is, for example, a belt-shaped member made of steel having a thickness of about 1.6 mm and a width of about 10 mm. The two release levers 161 are rotatably supported by bolts on the support member 3 of the LED unit 2 . In FIG. 110 , the release lever 162 indicated by a solid line shows the state in which the LED unit 2 is fixed to the mount 1 . On the other hand, the release lever 162 indicated by a chain double-dashed line shows 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 behind the wall surface W protrudes further than the support member 3 and pushes the bottom of the box portion 15a. . This reaction force allows the LED unit 2 to be removed from the mount 1 .

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

FIG. 113 shows an LED lighting device according to the twenty-fourth embodiment of the present invention. The LED lighting device A24 of this embodiment includes a plurality of LED units 2 . The box portion 15 a has a width of about 100 mm and a length approximately an integral multiple of the length of the LED unit 2 . As a result, a plurality of LED units 2 are housed in series in two rows in the box portion 15a. Such an embodiment can illuminate a larger room with sufficient illuminance.

The LED lighting device according to the present invention is not limited to the embodiments described above. The specific configuration of each part of the LED lighting device according to the present invention can be changed in various ways.

The configuration is not limited to the configuration in which the LED modules 20 are mounted on the substrate 31, and a configuration in which an insulating layer and wiring patterns are formed on the support member 3 and the LED modules 20 are mounted thereon may be employed. A configuration having the LED module 20 is suitable for efficiently emitting light from the LED chip 22, but the present invention is not limited to this. good too.

For example, although the LED lighting devices A16 to A19 use the bracket 32 with one end slanted in the longitudinal direction, the bracket 32 shown in the LED lighting devices A3 and A14 can also be substituted.

In addition, in the LED lighting devices A16 to A19, the first and second light emitting parts 1A and 2A are formed to extend elongated in directions perpendicular to each other. is not limited to the embodiments described above. For example, for the purpose of decoration or the like, the angle formed by the extending directions of the first and second light emitting portions may be an acute angle or an obtuse angle.

The configuration is not limited to the configuration in which the LED modules 20 are mounted on the substrate 31 or the additional substrate 31b, and an insulating layer and wiring pattern may be formed on the support member 3 and the LED modules 20 may be mounted thereon. The configuration having 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 for example, the LED chip 22 is directly mounted on 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 Mounting surface S1, S2 Switch T Transformer W, W', W'' Wall surface (mounting surface)
x (first) direction y (third) direction z (second) direction 1 mount (support)
2 LED unit 3 Supporting member 4 Cover 5 Power converter 10 Main body 10A First support 10B Second support 10a Recess 11 Holder 11a Locking piece 11b Flexible part 11c Notch 11d Locking part 12 Holder 12a Fitting Mating portion 12b Flexible portion 12c Hook-shaped portion 13 Holder 13a Locking piece 13b Flexible portion 13c Fixed portion 14 Holder 14a Locking piece 14b Flexible portion 14c Base portion 14d Notch 14e, 14f Bent portion 14g Protruding portion 15a Box portion 15b Frame portion 15c Engagement portion 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 Sealing resin 24 Reflector 31 Substrate 31a Additional portion 31b Additional substrate 32 Bracket 32a housing space 32b concave portion 33 screw (convex portion)
34 Connectors 34a, 34b, 34c Connector 35 Shaft 35a Root 35b Tip 36 Wire groups 41, 42 Locking piece 41a End 41b Step 42a Locking surface 42b Inclined surface 43 Center (strongly diffusing portion)
44 Diffusion member 51 Case 51a Notch 51b Holders 51c and 51d Folding portion 52 Power supply board 53 Electronic component 54 Detection means 55 Voltage detection means 56a and 56b Resistor 57 Adjustment resistor 110 Base plate 110a Mounting surfaces 110b and 110c Indicator 111 Bulging portion 111a (for wing connection) screw hole 112 (for ceiling attachment) screw hole 112a slotted portion 112b concave portion 112c screw hole 112d indicator portion 113 long plate portions 114, 114b, 114c, 115 plate member 114a notch portion 116 light shielding portion 116a hollow portion 116b hole portion 120 wing portion 120h screw hole 121 bottom plate portion 121a screw through hole 122 wall portion 123 arcuate portion 124 connecting portion 125 regulating member 126 cap 127 outer cover 127a outer surface 127b first surface 127c second surface 127d Third surfaces 127e, 127h Edges 127f, 127g Boundary 131 Screw (connecting means)
132 screws (mounting means)
141 washer (adjustment member)
142 spring (elastic member, adjustment member)
143 laminate (adjustment member)
144 seal (membrane member)
150 Base metal fitting 311 Wiring group 321 Base part 321a Concave part 322 Outer part 322a Reflector 323 (for fixing) locking grooves 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 wire 361b signal wire 362 connecting wire

Claims (2)

An LED lighting device comprising an LED unit and a mount,
The LED unit includes a plurality of LED modules arranged in a first direction, a support member, a cover and a power converter,
The mount consists of two base metal fittings and two holders,
the base fitting has a ridge and two extensions;
The holder is attached to the raised portion,
the two extending portions extend in a second direction orthogonal to the first direction with the raised portion interposed therebetween;
The two extensions are provided with screw holes,
The screw hole has an elongated hole-shaped portion and a concave portion,
The long hole-shaped portion has the second direction as a long axis direction,
The recess is recessed in the first direction from the center of the long hole-shaped portion,
LED lighting device. The base metal fittings are spaced apart in the first direction,
The LED lighting device according to claim 1.

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