JP2017191789A - LED lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting device capable of mounting an LED unit more easily.SOLUTION: An LED lighting device includes a first LED lighting device extending in a first direction and a second LED lighting device extending in a second direction orthogonal to the first direction, and the LED lighting device is an L-shaped in a plan view in which the first LED lighting device and the second lighting device are arranged in a line symmetrical manner with a center line being an axis inclining by 45° with respect to the first direction and the second direction. The LED lighting device includes: a first support body extending in the first direction; a first LED unit mounted on the first support body; a second support body extending in the second direction; and a second LED unit mounted on the second support body. Each of the first and second LED units includes: a plurality of LED modules; support members for supporting the plurality of LED modules; and a cover for covering the support member from the light emission side of the plurality of LED modules.SELECTED DRAWING: Figure 81

Description

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

  FIG. 114 shows a cross-sectional view of an example of a conventional LED illumination device (see, for example, Patent Document 1). The LED lighting device X shown in the figure includes a long rectangular substrate 91, a plurality of LED chips 92 mounted on the substrate 91, a tube 93 that accommodates the substrate 91, a terminal 94, and the LED chip 92. And a circuit 95 for lighting. On the substrate 91, wirings (not shown) connected to the plurality of LED chips 92 and the terminals 94 are formed. The LED lighting device X is configured to emit light from a plurality of LED chips 92 by fitting the terminals 94 into sockets of a general fluorescent lamp lighting fixture. Since the LED chip 92 has low power consumption and a long life, if the LED lighting device X is used as an alternative to a fluorescent lamp, improvements in cost and environment can be expected. The general-use fluorescent lamp luminaire is a luminaire widely used mainly for indoor general illumination. For example, in Japan, a commercial 100 V power source is used, and a straight-tube fluorescent lamp defined in JIS C7617 or A lighting fixture to which a ring-shaped fluorescent lamp defined in JIS C7618 is attached.

  However, the lighting fixture using the conventional fluorescent lamp is configured on the premise that the terminals 94 exist at both ends thereof and emit light in the entire circumferential direction. For this reason, for example, when a plurality of LED lighting devices X are attached to a lighting fixture in which a plurality of fluorescent lamps are arranged in series, a dark portion that does not emit light is generated between the adjacent LED lighting devices X. Those who see it may feel it is not good looking. Or even if it is a case where it is a case where it is intended to illuminate a part of wall surface, if LED lighting apparatus X is used, light will be irradiated besides the location which wants to illuminate. For this reason, for example, it is forced to provide a light-shielding cover that covers the half circumference of the LED lighting device X.

  Further, 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 illumination device X tends to have uneven brightness. If this uneven brightness is significant, the individual LED chips 92 may be visible depending on the viewing direction. In such cases, the viewer may feel that it does not look good.

  In addition, when the LED lighting device is installed on a ceiling or the like without using a general-purpose fluorescent lamp lighting fixture, parts may deteriorate due to use over a long period of time, and the appearance may deteriorate due to inclination or orientation. There are concerns.

  In addition, when a plurality of LED lighting devices are mounted in different directions, for example along the corners or pillars of the room, it is assumed that the ends of the plurality of LED lighting devices are arranged in different directions within a narrow range. The In such a case, there is a concern that the viewer will have a complicated impression and look worse.

  Further, when the LED lighting device X is attached to the ceiling, the LED lighting device X is attached to a general fluorescent lamp illumination fixture fixed to the ceiling. For this reason, the LED illumination device X emits light at a position slightly away from the ceiling. Then, the person who looks at the ceiling receives the impression that the LED lighting device X and the general fluorescent lamp luminaire considerably protrude from the ceiling. There was a problem that this jumping out of the ceiling hindered the unification of the indoor state into a smart impression.

  In addition, when the LED lighting device X is attached to a lighting fixture installed on the ceiling, the LED lighting device X looks considerably protruding from the ceiling. Such LED lighting device X that has popped out may give the impression that the room is complicated.

Japanese Utility Model Publication No. 6-54103

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

  The LED lighting device provided by the present invention is an LED lighting device to be mounted on a surface to be mounted, and includes a plurality of LED chips, an LED unit extending along a first direction, and at least a part of the above. And a support having a box portion that is located behind the mounting surface and that accommodates at least a part of the LED unit with respect to an opening provided on the mounting surface.

  In preferable embodiment of this invention, the said support body is further provided with the frame part connected with the outer periphery of the said box part, and engaging with the said to-be-attached surface.

  The LED illumination device provided by the present invention is an LED illumination device including a plurality of LED chips, the plurality of LED chips are mounted thereon, and an elongated support member extending along a first direction; A diffusion cover that is coupled to the support member, covers the plurality of LED chips, diffuses light from the plurality of LED chips and emits the light to the outside, and the diffusion cover includes the first direction. In view, it has a strong diffusing portion including a portion having the smallest distance from the LED chip, and the degree of diffusing light from the plurality of LED chips in the strong diffusing portion is an average of the entire diffusing cover It is characterized by being stronger.

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

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

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

  In a preferred embodiment of the present invention, the strong diffusion portion is constituted by a main body of the diffusion cover and a diffusion member that is laminated on the main body and diffuses light from the plurality of LED chips.

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

  In a preferred embodiment of the present invention, the 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 a main emission direction, and the diffusion cover is the first direction. In view, the outer peripheral shape is elliptical with the LED chip as the center and the second direction as the minor axis direction.

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

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

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

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

  In preferable embodiment of this invention, the said translucent resin contains the fluorescent material which emits the light of the wavelength different from the light from the said LED chip, when excited by the light from the said LED chip.

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

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

  In a preferred embodiment of the present invention, the bracket is formed with a recess recessed in a side opposite to a side from which light is emitted from the plurality of LED chips in the second direction. Are disposed in the recess.

  In a preferred embodiment of the present invention, a power conversion unit that converts externally input power into power suitable for the plurality of LED chips is provided, and the power conversion unit is provided for the plurality of LED chips. In the second direction, it is located on the opposite side to the side from which light is emitted from the plurality of LED chips, and is accommodated in the bracket.

  In a preferred embodiment of the present invention, the diffusion cover is engaged with 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 engaging 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.

It is a principal part perspective view which shows the LED lighting apparatus based on 1st Embodiment of this invention. It is sectional drawing which follows the II-II line | wire of FIG. It is a principal part perspective view which shows the LED unit of the LED lighting apparatus shown in FIG. It is sectional drawing which follows the IV-IV line of FIG. It is sectional drawing which shows the LED module used for the LED unit shown in FIG. It is a principal part perspective view which shows the case of the power conversion part of the LED unit shown in FIG. It is sectional drawing which shows the cover attachment in the assembly of the LED unit shown in FIG. FIG. 4 is a main part sectional view showing a state where a cover of the LED unit shown in FIG. 3 is pushed. (A) which shows the holder of the LED illuminating device shown in FIG. 1 is a front view, (b) is a side view, (c) is a top view. It is sectional drawing which shows attachment of the LED unit to the mount in the assembly of the LED lighting apparatus shown in FIG. It is sectional drawing which shows removal of the LED unit in the LED lighting apparatus shown in FIG. It is a principal part perspective view which shows the LED lighting apparatus based on 2nd Embodiment of this invention. It is sectional drawing which follows the XIII-XIII line | wire of FIG. It is sectional drawing which shows the LED unit of the LED lighting apparatus shown in FIG. It is a principal part front view which shows the attachment of the LED unit to the mount in the assembly of the LED lighting apparatus shown in FIG. It is a side view which shows attachment of the LED unit to the mount in the assembly of the LED lighting apparatus shown in FIG. The (a) which shows the holder of the LED unit in the LED illuminating device shown in FIG. 12 is a front view, (b) is a side view. It is a principal part perspective view which shows the LED lighting apparatus based on 3rd Embodiment of this invention. It is sectional drawing which follows the XIX-XIX line | wire of FIG. It is sectional drawing which shows the LED lighting apparatus based on 4th Embodiment of this invention. It is sectional drawing which shows the support body of the LED lighting apparatus shown in FIG. It is sectional drawing which shows the state which attached the base plate of the support body shown in FIG. 21 to the wall surface as it is. It is sectional drawing which shows the state which attached the base plate of the support body shown in FIG. 21 to the wall surface. It is sectional drawing which follows the XXIV-XXIV line | wire of FIG. It is sectional drawing which shows the state which attached the base plate of the support body shown in FIG. 22 to the wall surface using another adjustment member. It is sectional drawing which shows the baseplate provided with another adjustment member. It is a principal part enlarged view of the base plate shown in FIG. It is sectional drawing which shows the preferable attachment state of the base plate shown in FIG. It is sectional drawing which shows the state which incorporated the adjustment member in the support body shown in FIG. It is a principal part perspective view which shows the LED lighting apparatus based on 5th Embodiment of this invention. It is a top view which shows the LED lighting apparatus shown in FIG. It is sectional drawing which follows the XXXII-XXXII line | wire of FIG. It is a top view which shows the state which attached the LED lighting apparatus shown in FIG. 30 to the ceiling. It is a top view which shows the state which shifted the LED lighting apparatus shown in FIG. 33 to the x direction. It is a top view which shows the state which shifted the LED lighting apparatus shown in FIG. 33 to the y direction. It is a top view which shows the modification which applied the screw hole to the baseplate. It is sectional drawing which shows the LED lighting apparatus based on 6th Embodiment of this invention. It is a perspective view which shows the holder in the LED lighting apparatus shown in FIG. It is a principal part side view of the LED lighting apparatus shown in FIG. It is a principal part side view which shows the modification of the LED lighting apparatus shown in FIG. It is a principal part side view which shows another modification of the LED lighting apparatus shown in FIG. It is a principal part perspective view which shows the LED lighting apparatus based on 7th Embodiment of this invention. It is sectional drawing which follows the XLIII-XLIII line | wire of FIG. 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 an LED unit in the LED lighting device shown in FIG. 42. It is a principal part perspective view which shows the principal part of the LED lighting apparatus based on 8th Embodiment of this invention. It is a perspective view which shows the baseplate of the LED lighting apparatus shown in FIG. It is sectional drawing which follows the XLIX-XLIX line | wire of FIG. It is sectional drawing which shows the modification of the light-shielding part shown in FIG. It is sectional drawing which shows the other modification of the light-shielding part shown in FIG. It is a principal part perspective view which shows the other modification of the light-shielding part shown in FIG. It is a principal part perspective view which shows the LED lighting apparatus based on 9th Embodiment of this invention. It is an expanded sectional view of the cover shown in FIG. FIG. 55 is a cross-sectional view showing a modified example 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. It is a disassembled perspective view of the LED lighting apparatus based on 10th Embodiment of this invention. FIG. 60 is a plan view showing a base plate of the LED lighting device shown in FIG. 59. FIG. 60 is a main part sectional view showing a step of attaching the base plate shown in FIG. 59 to a wall surface. FIG. 60 is a plan view of relevant parts showing a step of attaching the base plate shown in FIG. 59 to a wall surface. FIG. 60 is a main part perspective view showing a modification of the indicator part shown in FIG. 59. FIG. 62 is a plan view of relevant parts showing a modification of the indicator part shown in FIG. 61. FIG. 62 is a plan view of relevant parts showing another modification of the indicator part shown in FIG. 61. FIG. 62 is a plan view of relevant parts showing still another modified example of the indicator part shown in FIG. 61. It is sectional drawing of the LED lighting apparatus based on 11th Embodiment of this invention. FIG. 68 is a perspective view of main parts of the LED unit shown in FIG. 67. FIG. 69 is a cross-sectional view of the LED unit shown in FIG. 68. FIG. 69 is a simplified wiring block diagram of the LED unit shown in FIG. 68. It is a principal part perspective view of the LED lighting apparatus based on 12th Embodiment of this invention. FIG. 72 is a side view of the LED unit shown in FIG. 71. FIG. 73 is a cross-sectional view taken along line LXXIII-LXXIII in FIG. 72. It is a principal part perspective view of the LED lighting apparatus based on 13th Embodiment of this invention. FIG. 75 is a cross-sectional view of the LED unit shown in FIG. 74. It is a principal part perspective view of the LED lighting apparatus based on 14th Embodiment of this invention. FIG. 77 is a cross-sectional view of the LED unit shown in FIG. 76. It is a principal part perspective view of the LED lighting apparatus based on 15th Embodiment of this invention. FIG. 79 is a perspective view of the holder shown in FIG. 78. 79A is a front view, FIG. 79B is a side view, and FIG. 79C is a plan view. It is a top view which shows the LED lighting apparatus based on 16th Embodiment of this invention. It is the top view seen from the reverse direction of the LED lighting apparatus shown in FIG. FIG. 83 is a cross-sectional view taken along line LXXXIII-LXXXIII in FIG. 82. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. 81A is a plan view, FIG. 81B is a side view, and FIG. 81C is a bottom view of the first support shown in FIG. 81A is a left side view, FIG. 81B is a plan view, and FIG. 81C is a right side view. It is a principal part enlarged view of the cover shown in FIG. 85A is a front view, FIG. 85B is a side view, and FIG. 85C is a front view showing a state before attachment. 84A is a front view, FIG. 84B is a side view, FIG. 84C is a plan view, and FIG. 84D is a front view showing a state before attachment. 81A is a front view, FIG. 81B is a side view, and FIG. 81C is a plan view. 83A is a side view of the main part, FIG. 83B is a front view, and FIG. 83C is a plan view of the main part. FIG. 93 is a development view of the case shown in FIG. 92. It is a principal part enlarged plan view which shows the LED lighting apparatus based on 17th Embodiment of this invention. It is a principal part enlarged plan view which shows the LED lighting apparatus based on 18th Embodiment of this invention. It is a principal part enlarged plan view which shows the LED lighting apparatus based on 19th Embodiment of this invention. It is a principal part perspective view of the LED lighting apparatus based on 20th Embodiment of this invention. It is sectional drawing of the LED lighting apparatus shown in FIG. It is a front view of the wing part of the LED lighting apparatus shown in FIG. It is a top view of the wing part of the LED lighting apparatus shown in FIG. It is a side view of the wing part of the LED lighting apparatus shown in FIG. It is a bottom view of the wing part of the LED lighting apparatus shown in FIG. It is a principal part top view of the LED lighting apparatus based on 21st Embodiment of this invention. It is principal part sectional drawing which follows the CIV-CIV line | wire of FIG. It is sectional drawing which follows the CV-CV line | wire of FIG. It is sectional drawing which follows the CVI-CVI line of FIG. It is sectional drawing which shows the modification of the LED lighting apparatus based on 21st Embodiment of this invention. It is a principal part top view of the LED lighting apparatus based on 22nd Embodiment of this invention. It is a principal part top view of the LED lighting apparatus based on 23rd Embodiment of this invention. It is principal part sectional drawing which follows the CIX-CIX line | wire of FIG. It is sectional drawing which follows the CX-CX line | wire of FIG. It is sectional drawing which follows the CXI-CXI line | wire of FIG. It is a principal part top view of the LED lighting apparatus based on 24th Embodiment of this invention. It is sectional drawing which shows an example of the conventional LED lighting apparatus.

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

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

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

  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 shaped to support the locking piece 11a. When an external force is applied to the pair of flexible portions 11b, the pair of flexible portions 11b can be elastically deformed in a direction in which the pair of locking pieces 11a approach and separate from each other. The pair of locking pieces 11a is a portion that engages with the LED unit 2 and is inclined so that the distance from each other becomes smaller toward the upper side in FIG. 9A. In the present embodiment, a plurality of holders 11 are provided in the recess 10a.

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

  As shown in FIG. 5, the LED module 20 includes a pair of leads 21, an LED chip 22, a sealing resin 23, and a reflector 24. The pair of leads 21 is made of, for example, a Cu alloy, and an LED chip 22 is mounted on one of the leads. The surface of the lead 21 opposite to the surface on which the LED chip 22 is mounted is a mounting terminal 21 a used for surface mounting the LED module 20. The LED chip 22 is a light source of the LED module 20 and can emit blue light, for example. The sealing resin 23 is for protecting the LED chip 22. The sealing resin 23 is formed using a translucent resin containing a fluorescent material that emits yellow light when excited by light from the LED chip 22. Thereby, the LED module 20 can irradiate white. As said fluorescent substance, it may replace with what emits yellow light, and may mix and use what emits red light, and what emits green light. The reflector 24 is made of, for example, white resin, and reflects light emitted from the LED chip 22 to the side.

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

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

  As shown in FIG. 4, the bracket 32 includes a base portion 321 and a pair of outer portions 322. 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. The outer portion 322 has a shape that covers 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 by a plurality of screws 33.

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

  Further, a locking groove 324 is formed in one outer portion 322. The locking groove 324 extends in the x direction and is recessed in the z direction on the opposite side to the emission direction of the LED module 20. The locking groove 324 has a locking surface 324a. The locking surface 324a extends in the x direction and faces the opposite side in the emission direction in the z direction. A locking groove 325 is formed in the other outer part 322. The locking groove 325 has a locking surface 325a and a convex piece 325b. The locking surface 325a extends in the x direction and faces the opposite side in the emission direction in the z direction. The convex piece 325b is located closer to the opposite side in 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 a circular arc cross section extending in the x direction, and is made of, for example, milky white resin that diffuses and transmits light from the LED module 20. As shown in FIG. 4, locking pieces 41 and 42 are formed at both ends of the cover 4.

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

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

  The power converter 5 functions to convert commercial AC 100V power into DC 36V, for example, and is accommodated in the support member 3. The power conversion unit 5 includes a case 51, a power supply substrate 52, and a plurality of electronic components 53. The case 51 has a U-shaped cross section, and is made of metal, for example. As shown in FIG. 6, a plurality of notches 51 a are formed at the end of the case 51. The notch 51a is used to fix the power converter 5 by engaging with a portion of the screw 33 shown in FIG. 4 that protrudes inward from the base 321. The power supply substrate 52 is fixed to the case 51, and a plurality of electronic components 53 are mounted thereon. The plurality of electronic components 53 are, for example, a transformer, a rectifier, and a transistor for constant current control. As shown in FIG. 3, a connector 34 extends from the power conversion unit 5. The connector 34 is connected to a connector (not shown) attached to the mount 1.

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

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

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

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

  The outer portion 322 holds the substrate 31. Thereby, even if it is a case where it uses for a long time in the state which attached LED lighting apparatus A1 to the ceiling, it can avoid that the board | substrate 31 falls unjustly.

  FIG. 7 shows how the cover 4 is attached to the support member 3 when the LED unit 2 is assembled. As clearly shown in the figure, first, the locking piece 41 of the cover 4 is hooked in the locking groove 324 of the support member 3. Next, by rotating the cover 4 around the locking piece 41, the locking piece 42 approaches 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 clearly shown in the figure, first, the LED unit 2 is approached from below, for example, with respect to the mount 1 fixed to the ceiling. Then, the LED unit 2 is pushed between the pair of locking pieces 11 a of the holder 11. Then, the flexible portion 11b is slightly bent, so that the pair of locking pieces 11a are once separated from each other. Thereafter, as shown in FIG. 2, the locking piece 11 a engages with the locking groove 323 of the support member 3. Thus, the LED unit 2 can be easily attached.

  When the LED unit 2 is pushed in, the cover 4 is easily pushed with a strong force. At this time, as shown in FIG. 8, the locking piece 42 moves to the back of the locking groove 325 in the z direction. Then, the inclined surface 42b and the convex piece 325b come into contact with each other. As a result, a force that is directed inward in the y direction is applied to the locking piece 42. Thereby, even if the cover 4 is strongly pressed, the cover 4 can be prevented from being unfairly detached from the support member 3.

  FIG. 11 shows how the LED unit 2 is removed from the mount 1. First, as shown in the figure, 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. Thus, LED lighting apparatus A1 can remove LED unit 2 from mount 1 easily.

  12 to 97 show another embodiment of the present invention. In these drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment.

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

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

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

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

  The mount 1 has a pair of holders 12. The 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-like portion 12c. The fitting portion 12 a is an oval hole and fits with the tip portion 35 b of the shaft 35. The flexible portion 12b is a portion that holds the fitting portion 12a. 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 part 12c is located inward in the x direction with respect to the fitting part 12a and has a J-shape.

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

  Since the LED illumination device A2 can rotate the LED unit 2 around 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 portion with high illuminance.

  18 and 19 show an LED illumination device according to a third embodiment of the present invention. The LED illumination device A3 of the present embodiment is mainly different in the configuration of the mount 1 from the LED illumination device A1 described above, but other configurations are the same as those of the LED illumination device A1, and the description thereof is omitted as appropriate.

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

  The wing part 120 has a bottom plate part 121, two wall parts 122, and two arcuate parts 123, and is made of an opaque material such as resin or aluminum. The bottom plate part 121 is parallel to the base plate 110. The two wall portions 122 stand 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 constitute a recess 10 a for accommodating the LED unit 2. The two arcuate portions 123 extend from the lower ends of the two wall portions 122 in the z direction, and are disposed with the concave portion 10a interposed therebetween. The second arcuate portion 123 has an arcuate envelope shape. The base plate 110 and the wing part 120 are connected to each other by, for example, screws (not shown).

  The LED unit 2 is configured as described above with reference to FIGS. 3 and 4. More specifically, as shown in FIG. 19, the base portion 321 has a recess 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 figure has a shape corresponding to a part of an ellipse having a major axis direction in the y direction and a minor axis direction in the z direction. The position where the locking pieces 41, 42 of the cover 4 and the outer portion 322 of the bracket 32 are coupled to each other is the upper side in the figure than the LED module 20, that is, the side opposite to the side from which light is emitted from the LED module 20. Is located.

  In the present embodiment, the total height ht of the LED lighting device A3 is 40.3 mm. The total height ht is desirably less than 45 mm. The total width Wt of the LED lighting device A3 is 120 mm. The ratio of the total height ht to the total width Wt is ht / Wt = 1/3. This ratio ht / Wt is desirably less than ½.

  The height h1 from the upper end of the mount 1 of the LED lighting device A3 to the lower end of the LED module 20 is 30 mm. The LED module 20 of this embodiment is remarkably small. For this reason, in LED lighting apparatus A3, it can be considered that the lower surface of LED module 20 exists in the substantially the same position as the light emission surface of LED chip 22. FIG. 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 the heights h1 and h2 is h1 / h2 = 2.9. The ratio h1 / h2 is desirably greater than 2 and less than 4.

  The height d1 of the power conversion unit 5 is 19.5 mm. The ratio between the height d1 and the height h1 is d1 / h1 = 0.65. This ratio d1 / h1 is desirably larger than ½.

  The height h3 of the mount 1 of the LED lighting device A3 is 30 mm. As a result, the height h3 is about 0.75 times the total height ht. The height h3 is desirably 0.7 times or more of 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 coincide with the envelope, it is close to the envelope and has a shape and position that gives a familiar impression. The intersection angle α1 between the extended 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 very low, 40.3 mm, the amount by which the LED lighting device A3 protrudes from the ceiling is significantly smaller than the configuration using the conventional LED lamp. can do. Thereby, it is possible to suppress a person who looks at the ceiling from having a complicated impression and to make the light distribution characteristics more uniform. In particular, when the total height ht is less than 45 mm when intended to be mounted on a ceiling, an effect of suppressing a complicated impression and uniform light distribution characteristics can be expected.

  As a specific application of the LED lighting device A3, it is assumed that the lighting device using a fluorescent lamp is used as an alternative to the lighting device in a place where the lighting device is attached. In this case, when the illumination device using the fluorescent lamp is removed, the attachment mark of the illumination device often remains on the ceiling as a scratch or a discolored portion. In the LED lighting device A3 of the present embodiment, the ratio ht / Wt is relatively small as 1/3. In other words, this 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 trace of the lighting device that has been mounted so far. In order to suppress such a complicated impression and realize a uniform light distribution characteristic, in order to exhibit such advantages, it is desirable that the ratio ht / Wt is less than ½.

  When the ratio h1 / h2 is 2.9, it is possible to improve the light distribution characteristics while securing an appropriate space for arranging the power conversion unit 5. When the ratio h1 / h2 is 2 or less, a space for arranging the power conversion unit 5 is insufficient. On the other hand, if the ratio h1 / h2 is 4 or more, the light distribution characteristics tend to be non-uniform. In addition, when the ratio h1 / h2 is 2 or less, an attempt is made to secure the arrangement space of the power conversion unit 5, or when the ratio h1 / h2 is 4 or more, the light distribution characteristics are improved. A3 will be enlarged.

  The ratio d1 / h1 being 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 having the relatively bulky power conversion unit 5. Means that. If this ratio d1 / h1 is ½ or less, as a result, the total height ht of the LED lighting device A3 will be unreasonably high.

  When the height h3 of the mount 1 is 0.75 times the total height ht, an impression that a substantial part of the LED lighting device A3 is covered with the mount 1 is given. Further, in the present embodiment, the crossing angle α1 is set to 40 degrees or less. Accordingly, the LED lighting device A3 has a very small step and the step is not conspicuous, and can give an impression that it is smooth and beautiful.

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

By adopting a configuration in which the power conversion unit 5 is accommodated in the bracket 32 on the ceiling side of the LED module 20, the LED unit 2 can be formed in an elongated and compact cross-sectional shape. This has the advantage that the shape of the mount 1 that supports the LED unit 2 can be determined relatively freely.

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

  The mount 1 is a support body that holds the LED unit 2, and includes a main body 10 and a plurality of holders 11. In addition to the base plate (first member) 110 and the wing part (second member) 120, the main body 10 includes screws 131, screws 132, and washers 141 as shown in FIG. The screw 131 connects the base plate 110 and the wing part 120, and is an example of the connecting means in the present invention. The screw 132 is used to attach the base plate 110 to the wall surface W, and is an example of the attachment means referred to in the present invention. The wall surface W is a ceiling surface, for example, and is formed so as to be perpendicular to the z direction as a whole. The washer 141 is installed as necessary when the base plate 110 is attached to the wall surface W, and is an example of an 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. The base plate 110 includes an attachment surface 110a, a plurality of bulging portions 111, and a plurality of (ceiling attachment) screw holes 112. I have. Both end edges in the y direction of the base plate 110 are bent downward in the z direction in order to ensure rigidity. The attachment surface 110a is a flat surface perpendicular to the z direction, and is provided on the upper side in the z direction. The plurality of bulging portions 111 are portions formed so as to protrude downward in the z direction, and are arranged so as to be separated from each other along the x direction. Each bulging portion 111 is formed with a screw hole 111a penetrating in the z direction (for wing connection). A female screw corresponding to the screw (connecting means) 131 is formed inside the screw hole 111a. Considering that the base plate 110 is long 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 respectively formed near both ends of the base plate 110 in the x direction. These screw holes 112 penetrate the base plate 110 in the z direction, and are formed so that portions other than the head of the screw 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, but the positional relationship between the screw hole 112 and the screw hole 111a is as follows. The reverse is also acceptable.

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

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

22 and 23, the right end portion of the base plate 110 'of another LED illumination device A4 installed adjacent to the x direction is displayed at the left end in the drawing. The base plate 110 ′ is attached to the wall surface W without being inclined.

  The 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 with each screw hole 111a of the base plate 110 when viewed in the z direction. The base plate 110 and the wing part 120 are connected by bringing the bulging part 111 into contact with the bottom plate part 121 and screwing the screws 131 into the screw holes 121a and the screw holes 111a.

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

  When the LED lighting device A4 is attached to the wall surface W, the base plate 110, the wing part 120, and the LED unit 2 are separated in advance. First, a process of attaching the base plate 110 to the wall surface W is performed. Next, a process of connecting the wing part 120 to the base plate 110 is performed. Then, the process of attaching the LED unit 2 to the recessed part 10a of the wing part 120 is performed.

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

  In the above inspection, when it is determined that the base plate 110 is not inclined, the base plate 110 is fixed to the wall surface W using the two screws 132 without sandwiching the washer 141. On the other hand, if it is determined in the above inspection that the base plate 110 is inclined, 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. If the right side in the x direction is recessed as opposed to the wall surface W in FIG. 23, the washer 141 is installed so as to overlap the screw hole 112 near the right end in the x direction. The inclination of the base plate 110 can be corrected by repeating the operation and the inspection with the washer 141 interposed therebetween. Thereafter, the base plate 110 is fixed to the wall surface W using screws 132.

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

  The step of attaching the LED unit 2 to the recess 10 a is performed by pushing the LED unit 2 between the pair of locking pieces 11 a of the holder 11. If it does in this way, a pair of latching pieces 11a will once be spaced apart mutually because the flexible part 11b bends a little. After that, as shown in FIG. 20, when the locking piece 11a is engaged with the locking groove 323 of the support member 3, the LED unit 2 is fixed in the recess 10a so as not to move in the y and z directions.

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

  According to the present embodiment, when the base plate 110 is attached to the wall surface W as described above, the position of the base plate 110 in the z direction can be adjusted using the washer 141. For this reason, as shown in FIG. 23, it is possible to attach the base plate 110 to the wall surface W having the depression so as not to be inclined. Furthermore, by adjusting the number of washers 141, it is possible to deal with cases where the dent is large or small.

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

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

  In FIG. 25, the spring 142 is disposed so as to surround the screw 132 because it is more preferable for preventing the spring 142 from dropping off, but may be installed at other positions. Since the spring 142 is stretched between the wall surface W and the mounting surface 110a, it is difficult for the spring 142 to fall off between the wall surface W and the mounting surface 110a even if it is not hooked on the screw 132. For this reason, the spring 142 can be installed relatively freely, and is effective in adjustment work when the unevenness of the wall surface W is complicated.

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

  As shown in FIGS. 26 and 27, the laminated body 143 includes a plurality of seals 144 laminated on the attachment surface 110a so as to be peeled in order from the top. The seal 144 is an example of a membrane member in the present invention. The stacked body 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 the seal 144 being peeled off at all.

  FIG. 28 shows the base plate 110 attached to the wall surface W ′ after the adjustment work. Adjustment work in the stacked body 143 is performed by removing the seal 144 instead of adding the washer 141. According to FIG. 28, all the seals 144 of the laminate 143 near the left end in the x direction of the base plate 110 are peeled off, and some of the seals 144 of the laminate 143 near the center are peeled off.

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

  In addition, although the washer 141 is used in FIG. 29, the spring 142 or the laminated body 143 may be used. When the stacked body 143 is used, the stacked body 143 is installed on the bulging portion 111.

  30 to 32 show an LED lighting device according to a fifth embodiment of the present invention. The LED lighting device A5 of the present embodiment is different from the above-described embodiment in the configuration of the mount 1. In the present embodiment, the mount 1 includes two base fittings 150 and two holders 11. In FIG. 31, the screw 132 is omitted for convenience of understanding. Moreover, the structure about the mount 1 in this embodiment is applicable also to LED lighting apparatus A1, A3 mentioned above.

  The holder 11 is the same as that used for the LED lighting devices A1, A3, 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 almost the entire length of the LED unit 2. For this reason, the LED unit 2 can slide in the x direction with respect to the holder 11.

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

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

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

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

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

  When it is found that the position in the y direction is shifted with respect to the adjacent LED lighting device A5, the screw 132 is loosened, and the LED lighting device A5 is shifted leftward in the x direction as shown in FIG. Thereby, each screw 132 will move from the inside of the recessed part 112b to the inside of the long hole-shaped part 112a. In this state, the LED illumination device A5 can be moved in the y direction by an amount corresponding to the length of the long hole portion 112a minus the diameter of the screw 132.

  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 illumination device A5 downward in the drawing because the position of the LED illumination device A5 has shifted upward in the drawing. When it is confirmed that the y-direction position of the LED lighting device A5 matches the adjacent LED lighting device A5, the screw 132 is fastened. From the above, the position adjustment of the LED lighting device A5 is completed.

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

  According to this embodiment, after attaching LED lighting apparatus A5, the shift | offset | difference of the y direction with adjacent LED lighting apparatus A5 can be eliminated easily, for example. In order to perform this adjustment work, it is not necessary to remove the LED unit 2. With respect to one base metal fitting 150, two screw holes 112 are spaced apart in the y direction across the LED unit 2, so that the base metal fitting 150 and thus the LED unit 2 can be stably fixed to the wall surface W. Can do.

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

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

  Prior to the position adjustment described above, when the LED lighting device A5 is attached to the wall surface W, the screw 132 is positioned in the recess 112b. Thereby, it is possible to prevent the base metal fitting 150 from being unduly displaced in the y direction with respect to the screw 132 in the attaching operation. Since the concave portion 112b and the long hole-shaped portion 112a are connected to each other, the screw 132 is positioned in the long hole-shaped portion 112a according to the procedure shown in FIG. it can.

  FIG. 36 shows a modification in which a screw hole 112 having a long hole portion 112a and a concave portion 112b is applied. The base plate 110 shown in this figure has the same configuration as the base plate used in the LED lighting device A4 shown in FIG. In the base plate 110 of this modification, three screw holes 112 are spaced apart from each other in the x direction. Also by such a modification, position adjustment of LED lighting apparatus A5 can be performed appropriately.

  37 to 39 show an LED lighting device according to a sixth embodiment of the present invention. The LED illumination device A6 of this embodiment is mainly different from the LED illumination device A3 described above in the shape and installation position of the holder 11, but the other configuration is the same as that of the LED illumination device A3, and the description thereof is omitted as appropriate. To do. In FIG. 39, the base plate 110 and the wing portion 120 are omitted for simplification. Moreover, the structure about the holder 11 in this embodiment is applicable also to LED lighting apparatus A1, A5 mentioned above.

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

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

  As shown in FIG. 39, the head portion of the screw 33 is fitted into the notch portion 11 c of the holder 11. In the present embodiment, two screws 33 are fitted to one holder 11. Thereby, the position of the center part in the x direction of the holder 11 corresponds with the x direction position of the screw 33 when the LED unit 2 is properly installed.

  A plurality of screws 33 are attached to the bracket 32. Two screws 33 are arranged as a set on the both sides in the y direction at the same position in the x 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 illumination device A6 so as to correspond to the arrangement of the screws 33.

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

  According to the present 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 cutout portions 11c. For this reason, there is no possibility that the LED unit 2 slides along the x direction even when the support body 1 is inclined, for example, when the LED lighting device A6 is attached to the ceiling. Therefore, the LED unit 2 can be prevented from falling off when and after the LED lighting device A6 is attached to the ceiling.

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

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

  Also in such an LED lighting device A6, since the holder 11 is sandwiched between the two screws 33, the LED unit 2 cannot be moved in the x direction. For this reason, such an LED lighting device A6 can also prevent the LED unit 2 from falling off when being attached to the ceiling and after being attached.

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

  According to FIG. 41, the screw 33 is provided so as to be 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.

  Also in such an LED illumination device A6, 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 does not move in the x direction. Yes. For this reason, when attaching LED lighting apparatus A6 to a ceiling and after attaching, LED unit 2 becomes difficult to drop off.

  42 and 43 show an LED lighting device according to a seventh embodiment of the present invention. The LED illumination device A7 of this embodiment is different from the LED illumination device A3 described above mainly in the structure of the mount 1, particularly the structure for fixing the LED unit 2, but the other configuration is the same as that of the LED illumination device A3. This is the same, and the description is omitted as appropriate. In addition, the structure for fixing the LED unit 2 in this embodiment is applicable also to LED lighting apparatus A1, A5 mentioned above.

  In the present embodiment, the holder 13 that is an elastic member is arranged on one side in the y direction of the recess 10a, and the regulating member 125 is formed on the other side. The restricting member 125 has a plate shape protruding in the y direction from the wall portion 122 and is perpendicular to the wall portion 122. For example, the regulating member 125 is installed 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 fixing 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 part 13b is inclined so as to be closer to the LED unit 2 in the y direction as it is farther from the bottom plate part 121 in the z direction. The flexible portion 13b is configured to support the locking piece 13a at one end and to be connected to the fixing portion 13c at the other end, and is formed to be elastically curved and deformable. 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. Note that a plurality of the holders 13 are arranged along the x direction.

  The outer portion 322 of the LED unit 2 is formed with a convex portion 323A that protrudes in the y direction. A locking groove 323 (for fixing) is formed in the convex portion 323A. The outer part 322 on the right side in the y direction and the outer part 322 on the left side are the same parts arranged in opposite directions, and are symmetrical with respect to the left and right. As shown in FIG. 43, the convex portion 323 </ b> A on the right side in the drawing is engaged with the regulating member 125. Further, the locking piece 13a is engaged with the locking groove 323 provided in the left convex portion 323A in the drawing.

  When the LED unit 2 is fixed to the wing part 120, first, as shown in FIG. 44, the LED unit 2 is fitted into the recess 10a. At this time, the support member 3 tries to push the locking piece 13a of the holder 13 outward in the y direction. The flexible portion 13b is elastically deformed by this force. When the LED unit 2 is pushed into the recess 10a, the state shown in FIG. 45 is obtained. At this time, the locking piece 13 a of the holder 13 is fitted into the locking groove 323. Thereafter, when the holder 13 is deformed to return to the original shape, the LED unit 2 moves to the right in the y direction until it contacts the regulating member 125. At this time, the convex portion 323 </ b> A is locked to the restriction member 125.

  FIG. 46 shows a state where the LED unit 2 is removed from the wing part 120. First, as shown in the figure, 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 is retracted to the left in the drawing. 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. Thus, LED lighting apparatus A7 can remove LED unit 2 from wing part 120 easily.

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

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

  FIG. 47 shows an LED lighting device according to an eighth embodiment of the present invention. The LED illumination device A8 shown in FIG. 47 is mainly different in the structure of the base plate 110 from the LED illumination device A3 described above, but the other configuration is the same as that of the LED illumination device A3, and the description thereof will be omitted as appropriate. In addition, the structure about the base plate 110 in this embodiment is applicable also to LED lighting apparatus A1, A5 mentioned above.

  In the present embodiment, the base plate 110 includes an elongated plate 113 extending in the x direction, plate members 114 and 115 extending downward in the z direction from both ends of the long plate 113 in the y direction, and two plate members. 114b. As well shown in FIG. 48, the base plate 110 is formed with two notches 114a spaced in the x direction. Each notch 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 so as to cut the predetermined length in the y direction of the long plate 113. The pair of plate-like members 114b protrude from the end in the y direction of each notch 114a downward in the z direction, 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 are a pair of light shielding portions 116 that surround the cavity portion 116a when viewed in the x direction (yz plane). Is forming. The base plate 110 is provided with two hollow portions 116 a and two light-shielding portions 116 that are spaced apart from each other in the x direction, and are particularly disposed from both ends of the base plate 110.

  FIG. 48 shows a state in which the left-side base plate 110 is installed in accordance with the right-side base plate 110 ′ already installed on the ceiling. The base plate 110 ′ is appropriately arranged so that its longitudinal direction is along the x direction. When the base plate 110 is installed on the ceiling, the position of the base plate 110 in the y direction is inspected using the laser light Lx traveling along the x direction. The laser beam Lx is set so as to pass between each plate member 114b and the plate 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 coincides with the position of the base plate 110 ′ in the y direction, the laser light Lx is transmitted between each plate member 114b and the plate member 114 of the base plate 110, that is, It passes through the cavity portion 116a. Conversely, when the laser beam 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 beam Lx is blocked by the light shielding unit 116. Thereby, it can be determined that the position of the base plate 110 in the y direction is deviated from an appropriate position.

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

  According to such an embodiment, the position of the base plate 110 in the y direction can be made appropriate by adjusting the position of the base plate 110 in the y direction so that the laser light Lx passes through both the cavity portions 116a. it 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 both the plate members 114b and the plate members 114. According to such adjustment, the laser beam Lx is blocked by the light shielding unit 116 before and after the proper position is reached, so that the proper position of the base plate 110 can be found relatively easily. For this reason, when installing two or more LED lighting apparatus A8 on a ceiling, the position in the y direction of the baseplate 110 can be arrange | positioned comparatively easily. Therefore, the positions of the wing part 120 and the LED unit 2 attached under the base plate 110 are also aligned, and the appearance of the plurality of LED lighting devices A8 attached to the ceiling is improved.

  50 to 52 show modifications of the light shielding unit 116, respectively.

  The base plate 110 shown in FIG. 50 is provided with a plate-like member 114c protruding leftward in the y direction at the lower end of the plate-like member 114b. The left end portion of the long plate portion 113 in the drawing, the plate-like member 114, the plate-like member 114b, and the plate-like member 114c form a light shielding portion 116 that surrounds the cavity 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 described above, the position adjustment in the z direction can be performed by the same method.

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

  The base plate 110 shown in FIG. 52 is provided with a light shielding portion 116 having a hole 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 part 116 is provided at the other end in the x direction (not shown). These light shielding portions 116 have the same y-direction position. The light shielding portion 116 is formed relatively easily by, for example, bending a plate piece protruding in the x direction from the long plate portion 113.

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

  FIG. 53 shows an LED lighting apparatus according to the ninth embodiment of the present invention. The LED illumination device A9 of this embodiment is mainly different in the structure of the cover 4 from the LED illumination device A7 described above, but the other configuration is the same as that of the LED illumination device A7, and the description thereof will be omitted as appropriate. In addition, the structure about the cover 4 in this embodiment and a modification is applicable also to LED illuminating device A1, A3, A5 mentioned above.

  In FIG. 54, the expanded sectional view of the cover 4 of LED lighting apparatus A9 is shown. The cover 4 shown in this figure is formed so that the central portion 43 is thicker than the periphery thereof, but other configurations are the same as those of the cover 4 in the LED lighting devices A1 to A8. As described in the description of the cover 4 in the LED lighting device A1, the cover 4 is a diffusion cover made of, for example, milky white resin that diffuses and transmits light from the LED module 20. The central portion 43 is a region having a certain width in the y direction centered directly below the z direction of the LED chip 22. 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 the light is diffused and the light transmittance is reduced. For this reason, 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 about 75%, and the light transmittance in other regions is about 85%.

  The cover 4 is formed such that the distance from the LED module 20 is the smallest at the central portion 43 and the distance from the LED module 20 increases as the distance from the central portion 43 in the y direction increases. For this reason, the intensity of light from the LED module 20 that reaches the central portion 43 is greater than the intensity of light from the LED module 20 that reaches other areas.

  According to the LED lighting 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 of the same level. Of strength. For this reason, it is possible to suppress unevenness of the light emitted from the cover 4 when the LED lighting device A9 is turned on, and it is prevented that the individual LED modules 20 are arranged in dots. can do. Therefore, the appearance at the time of lighting of LED lighting apparatus A9 can be improved.

  FIG. 55 shows a modification of the cover 4. In the cover 4 shown in FIG. 55, the central portion 43 is formed in a flat plate shape. Even when such a cover 4 is used, unevenness of light emitted from the cover 4 can be suppressed.

  FIG. 56 shows another modification of the cover 4. The cover 4 shown in FIG. 56 is formed such that the thickness gradually increases from the end toward the center in the y direction. Such a cover 4 is thicker as it is closer to the LED module 20. Thereby, when the LED lighting device A9 is turned on, unevenness of light emitted from the cover 4 can be further suppressed. Therefore, the appearance when the LED lighting device A9 is turned on can be improved.

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

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

  59 and 60 show an LED lighting device according to the tenth embodiment of the present invention. As shown in FIG. 59, the LED lighting device A10 of the present embodiment includes a base plate 110 attached to a horizontal wall surface W, a wing part 120 attached to the base plate 110, and an LED unit 2 attached to the wing part 120. ing. The LED illumination device A10 is mainly different in the structure of the base plate 110 from the LED illumination device A7 described above, but the other configuration is the same as that of the LED illumination device A7, and description thereof will be omitted as appropriate. In addition, the structure about the baseplate 110 in this embodiment is applicable also to LED lighting apparatus A1, A3, A5 mentioned above. 61 and 62 show a state in which the base plates 110 of the two LED lighting devices A10 arranged in the x direction are attached to the wall surface W. FIG. The wall surface W is, for example, a ceiling surface.

  The base plate 110 according to the present embodiment includes index portions 110b and 110c formed at both ends in the x direction and a plurality of screw holes 112c arranged along the x direction. The 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 notches formed in a wedge shape whose length in the y direction decreases as the distance from the end of the base plate 110 increases along the x direction. The indicator portions 110b and 110c have a line-symmetric shape with respect to the center line Cy, and the wedge-shaped tip is located at the center of the base plate 110 in the y direction.

  The screw hole 112c is provided to allow the screw 132 to pass through, and has a shape symmetrical with respect to the center line Cy when viewed in the z direction. Further, as well shown in FIG. 62, the screw hole 112c is formed integrally with the indicator portion 112d. The indicator part 112d has a line-symmetric shape with respect to the center line Cy, and has a wedge shape like the indicator parts 110b and 110c.

  Hereinafter, the process of attaching the two LED lighting devices A10 to the wall surface W of the base plate 110 will be described. 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 straight line index Lw can be formed by drawing a straight line on the wall surface W with an oil-based or water-based pen, for example.

  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 straight line 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 straight line index Lw. Then, as shown in FIG. 61, the base plate 110 is attached to the wall surface W by passing the screw 132 through the screw hole 112c and screwing it into the wall surface W.

  Such an LED illumination device A10 adjusts the arrangement of the base plate 110 so that the center line Cy coincides with the straight line index Lw by aligning the positions of the index parts 110b, 110c and 112d and the straight line index Lw as described above. Is possible. For this reason, as shown in FIGS. 61 and 62, when the plurality of base plates 110 are attached, the directions of the base plates 110 can be aligned. Therefore, when the plurality of LED lighting devices A10 are installed on the wall surface W, the directions of the plurality of LED lighting devices A10 are aligned, and the appearance is improved.

  FIG. 63 shows another embodiment of the index unit 110c. It should be noted that not only the indicator portion 110c but also the indicator portions 110b and 112d can take the same shape.

  The indicator portion 110c shown in FIG. 63 is formed such that the shape in the z-direction view becomes a larger wedge shape as the distance from the attachment surface 110a in the z-direction increases. Such a shape of the indicator portion 110c is designed so that the operator can easily confirm the overlap between the indicator portion 110c and the linear indicator Lw even when obliquely below when the LED lighting device A10 is attached to the ceiling.

  64 to 66 show still another embodiment of the indicator portions 110b and 110c. 64 are formed as convex portions that protrude in the x direction from both ends of the base plate 110. The indicator portions 110b and 110c shown in FIG. The index parts 110b and 110c shown in FIG. 65 are drawn on both ends of the base plate 110 and have a linear shape. 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 an eleventh embodiment of the present invention. The LED illumination device A11 of the present embodiment is mainly different from the LED illumination device A7 described above in the configuration of the LED unit 2, but the other configurations are the same as those of the LED illumination device A7, and the description thereof will be omitted as appropriate. In addition, the structure about the LED unit 2 in this embodiment is applicable also to LED lighting apparatus A1, A3, A5 mentioned above. FIG. 68 is a perspective view showing a 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 is a simplified block diagram showing an example of wirings installed on the power supply substrate 52 and the substrate 31. 70, in addition to the illuminance confirmation LED chip 20a and the detection means 54 already mentioned, the power supply substrate 52 includes a transformer T, switches S1, S2, and voltage detection means for converting an AC voltage from the AC power source E into a DC voltage. 55, resistors 56a and 56b, and an adjustment resistor 57 are provided. Note that the transformer T, the switches S1 and S2, the voltage detecting means 55, the resistors 56a and 56b, and the adjusting resistor 57 are included in the electronic component 53 of FIG. The other configuration of the LED unit 2 shown in FIGS. 68 and 69 is the same as that of the LED unit 2 shown in FIG.

  As shown in FIG. 69, the illuminance confirmation LED chip 20a is mounted on the opposite side of the main emission direction of the LED module 20 in the z direction of the power supply substrate 52. Preferably, the illuminance confirmation LED chip 20a is installed at the center of the power supply substrate 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 detecting means 54 is composed of a photoelectric conversion element such as a photodiode or a phototransistor that generates a voltage according to received light, for example. This 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 substrate 52, and is located at the same position in the x direction with respect to the illuminance confirmation LED chip 20a and separated in the y direction. Are arranged as follows. The detection unit 54 receives light from the illuminance confirmation LED chip 20 a and outputs a voltage corresponding to the illuminance to the voltage detection unit 55.

  As shown in FIG. 69, a U-shaped case 51 having a bottom in the z-direction upper portion is fitted into an accommodation space 32a formed by a U-shaped bracket 32 having a bottom in the lower z-direction. Yes. For this reason, the inside of the case 51 is blocked from the outside in 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. The notification LED chip 20b is lit by receiving power from the power supply substrate 52 when the switches S1 and S2 are ON. Further, a resistor 56b is installed in series with the notification LED chip 20b so that a large voltage is not applied to the notification LED chip 20b. The resistor 56b is formed to have the same resistance as that of, for example, 11 LED chips 22 connected in series.

  The switch S1 is a switch for switching ON / OFF of 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 simultaneously.

  The resistor 56a is installed in series with the illuminance confirmation LED chip 20a. As described in the LED lighting device A1, twelve LED chips 22 connected in series with each other are made into one set. The resistor 56a is provided in order to make the voltage applied to the LED chip 20a for illuminance confirmation to the same level as the voltage applied to one LED chip 22, for example, the same resistance as that of 11 LED chips 22 connected in series. It is formed to have. When a heating resistor is used as the resistor 56a, the resistor 56a should be installed at a position physically separated from the illuminance confirmation LED chip 20a so that the heat generated during driving does not 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. The adjustment resistor 57 is provided to further adjust the voltage applied to the illuminance confirmation LED chip 20a. The power supply substrate 52 and the substrate 31 that hold the illuminance confirmation LED chip 20 a are both formed of glass epoxy resin, but the substrate 31 is held by an aluminum base 321 and radiates heat more than the power supply substrate 52. Excellent in function. For this reason, even when the same voltage as the LED chips 22 is applied to the illuminance confirmation LED chips 20a, the illuminance confirmation LED chips 20a are higher in temperature than the LED chips 22 due to the difference in heat dissipation. turn into. Thereby, a difference arises in the degree to which both characteristics change. Therefore, in order to make the change rate of the illuminance checking LED chip 20a the same as the change rate of the LED chip 22, it is necessary to adjust the voltage applied to the illuminance checking LED chip 20a. Considering the above points, the resistance value of the adjustment resistor 57 is adjusted so that the change rate of the LED chip 20a for illuminance confirmation is approximately the same as the change rate of the LED chip 22.

The voltage detection unit 55 functions to turn on the switch S2 when the voltage output from the detection unit 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 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), for example.

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

  The illuminance confirmation LED chip 20a also changes at the same speed as the LED chip 22 changes. As the change in the illuminance confirmation LED chip 20a proceeds, the amount of light received by the detection means 54 gradually decreases, and the voltage detected by the voltage detection means 55 decreases. 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 the notification LED chip 20b is turned on simultaneously when the LED lighting device A11 is turned on.

  Thus, 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 is turned on. Thereby, the user can easily know that the LED unit 2 needs to be replaced. Therefore, in the LED lighting device A11, the LED unit 2 can be replaced at an appropriate time, and illumination that always looks good can be provided.

  Furthermore, in the present embodiment, the LED module 20 emits white light, whereas the notification LED chip 20b emits red light. For this reason, when the LED chip 20b for notification is turned on, the red light is visible and stands out, so that the user can easily notice that the time for replacement has come. The color of the notification LED chip 20b is not limited to red, and other colors may be used.

  In the LED lighting device A11 described above, 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. However, it is possible to implement even when the adjustment resistor 57 is not installed. It is. Even in this case, since the illuminance confirmation LED chip 20a is lit simultaneously with the LED chip 22, the change rate of the illuminance confirmation LED chip 20a is proportional to the change rate of the LED chip 22. For this reason, it is possible to estimate the degree of change of the LED chip 22 by knowing the degree of change of the illuminance confirmation LED chip 20a by the detection means 54. Therefore, for example, by adjusting the value of α to be lower than the above-described value, it is possible to turn on the notification LED chip 20b when the LED chip 22 changes to the extent that replacement is necessary.

  In the LED lighting device A11, the voltage applied to each LED chip 22 is adjusted to the voltage applied to each LED chip 22 by providing the resistor 56a. For example, the LED for illuminance checking without providing the resistor 56a. Twelve chips 20a may be connected in series.

  FIG. 71 shows an LED lighting device according to a twelfth embodiment of the present invention. The LED illumination device A12 of the present embodiment is mainly different from the LED unit A3 described above in the configuration of the LED unit 2, but the other configuration is the same as that of the LED illumination device A3, and the description thereof is omitted as appropriate. In addition, the structure of the LED unit 2 in this embodiment is applicable also to LED lighting apparatus A1, A5 mentioned above. FIG. 72 shows a side view of the plurality of LED units 2 arranged along the x direction. The LED unit 2 shown in FIGS. 72 and 73 includes a pair of connectors 34a and 34b, 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. The electric wire group 36 which connects 52 is provided. Other configurations of the LED unit 2 shown in FIG. 72 and FIG. 73 are the same as those of the LED unit 2 shown in FIG.

  The electric wire group 36 includes a main electric wire 361 extending along the x direction and a connecting wire 362. The main electric wire 361 is a resin cable including a power line 361a for supplying power to the power supply board 52 and a signal line 361b for transmitting a signal for instructing the power supply board 52 to turn on / off and adjust brightness. The main electric wire 361 may be used only for supplying electric power. As shown in FIG. 73, the main electric wire 361 is disposed at the lower right corner of the case 51. Both ends of the main electric wire 361 in the x direction protrude outward from both ends of the case 51 in the x direction. In FIG. 73, the connecting wire 362 has a lower end connected to the main electric wire 361, and is, for example, a resin cable that incorporates electric wires extending from the power line 361a and the signal line 361b. The upper end portion of the connecting line 362 in the drawing is connected to the power supply substrate 52 via the connector 34c.

  The connector 34a is formed in a rectangular parallelepiped shape having a concave portion in the center, for example, by resin. Electrodes connected to the power line 361a and the signal line 361b are provided inside the recesses provided in the connector 34a. According to FIG. 72, the connector 34a is connected to the left end of the main electric wire 361 in the x direction. On the other hand, the connector 34b is made of, for example, resin, 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 electric wire 361 in the x direction. The projections provided on the connector 34b are provided with electrodes connected to the power line 361a and the signal line 361b. Further, according to FIG. 72, a connector 34b connected to the right end of the main electric wire 361 of the adjacent LED unit 2 is fitted to the connector 34a.

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

  In the fluorescent lamp and the conventional LED lighting device X, the electric wire is not exposed to the outside because it is used by being attached to a general fluorescent lamp luminaire previously installed on the ceiling or the like. On the other hand, in the LED lighting device A <b> 12, the power supply to the LED unit 2 is performed by the wire group 36. Unlike the present embodiment, when the wire group 36 is exposed to the outside, the appearance of the entire LED lighting device A12 is impaired. In the present embodiment, the electric wire group 36 is accommodated in a space surrounded by the case 51 and the base portion 321. For this reason, in the electric wire group 36, what is visible from the outside is limited to the connection portions with the connectors 34a and 34b. Therefore, in the LED lighting device A12, the exposure of the electric wire group 36 to the outside is suppressed to a minimum, and a more attractive appearance can be obtained.

  Furthermore, according to this embodiment, since most of the electric wire group 36 is accommodated in the LED unit 2, when the LED unit 2 is attached to the mount 1 or the LED unit 2 is removed from the mount 1. It becomes difficult to interfere with work. For this reason, in LED lighting apparatus A12, it is possible to replace the LED unit 2 easily and quickly.

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

  Further, according to the present embodiment, the main electric wire 361 is installed at a position relatively distant from the power supply substrate 52 and the electronic component 53 in the case 51. For this reason, interference between the current flowing through the main electric wire 361 and the power supply substrate 52 and the electronic component 53 can be suppressed.

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

  The holder 51b is a metal fitting that is formed outside the upper portion of the case 51 in FIG. 75 and that fixes the main electric wire 361 between the upper portion of the case 51 and the holder 51b. In the present embodiment, the plurality of holders 51b are arranged along the x direction. The base portion 321 in the present embodiment is formed such that the upper end portion in the z direction is higher in the z direction than the upper end portion of the holder 51b. The connecting line 362 passes through the upper portion of the case 51 and is connected to the upper side of the power supply substrate 52 in the drawing via a connector 34c.

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

  FIG. 76 shows an LED lighting device according to a fourteenth embodiment of the present invention. The LED illumination device A14 of the present embodiment is different from the LED illumination device A12 described above in the configuration of the bracket 32 and the arrangement of the wire group 36, but the other configuration is the same as that of the LED illumination device A12, and will be described as appropriate. Omitted. In addition, the structure of the bracket 32 in this embodiment is applicable also to LED lighting apparatus A1, A3, A5 mentioned above. 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 recess 32 b provided in the bracket 32. The other configuration is the same as that of the LED unit 2 shown in FIGS.

  77 has a shape in which the base portion 321 and the outer portion 322 in FIG. 73 are integrated. However, although the end edge of the outer part 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 side of the bracket 32 on the right side in FIG. 77 so as to be recessed in the y direction. 77 penetrates the right side of the case 51 in FIG. 77 and is connected to the lower side of the power supply substrate 52 via the connector 34c.

  Also in such LED lighting apparatus A14, like the LED lighting apparatus A12, the electric wire group 36 is difficult to see from the outside, and a more attractive appearance can be realized. Furthermore, in this embodiment, since the main electric wire 361 is disposed outside the case 51, interference between the current flowing through the main electric wire 361 and the power supply substrate 52 and the electronic component 53 can be prevented.

  FIG. 78 shows an LED lighting device according to the fifteenth embodiment of the present invention. The LED illumination device A15 of this embodiment includes a holder 14 instead of the holder 11, but the other configuration is the same as that of the LED illumination device A3, and the description thereof is 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. In addition, the structure of the holder 14 of this embodiment is applicable also to LED lighting apparatus A1, A5 mentioned above.

  The holder 14 is formed, for example, by bending a metal plate, like the holder 11, and includes a pair of locking pieces 14a, a pair of flexible portions 14b, a base portion 14c, 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 performs a process of cutting out a part of a metal plate before the bending process. By this processing, the holder 14 is formed with a notch 14d. Due to this notch 14d, the bent portion 14e is divided in the x direction in FIG. The length of the notch 14d in the x direction is set so that the length of the bent portion 14e in the x direction is the same as the length of the bent portion 14f in the x direction.

  As shown in FIGS. 79 and 80, the base portion 14c supports a pair of flexible portions 14b via a bent portion 14e. The flexible portion 14b is configured to support 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 flexible portions 14b can be elastically deformed in a direction in which the pair of locking pieces 14a approach and separate from each other. The pair of locking pieces 14a is a portion that engages with the LED unit 2, and is inclined so that the distance from each other decreases toward the upper side in FIG. 80A. In the present embodiment, a plurality of holders 14 are provided in the recess 10a. Each locking piece 14a is provided with a protruding portion 14g. The protruding portion 14g protrudes toward the base portion 14c in the inclination direction of the locking piece 14a. The protruding portion 14 g is a portion where the locking piece 14 a is directly locked with the locking groove 323 of the support member 3.

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

  On the other hand, in the holder 14, the notch 14d is provided, so that the length of the bent portion 14e in the x direction is the same as the length of the bent portion 14f in the x direction. Therefore, there is no difference in deformation between the bent portion 14e and the bent portion 14f, and when an external force is applied to the pair of flexible portions 14b, the bent portion 14e and the bent portion 14f are uniformly deformed. . Therefore, in the holder 14, 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 time, and the LED illumination device A15 can maintain a more preferable appearance for a longer time.

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

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

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

  The first support 10 </ b> A is composed of a base plate 110 and a wing part 120. The base plate 110 is formed in an elongated plate shape having the x direction as a longitudinal direction and the y direction as a width direction, and includes a plurality of screw holes 112. The wing part 120 has a bottom plate part 121, two wall parts 122, and two arcuate parts 123, and is made of opaque material such as resin or aluminum. The bottom plate portion 121 is formed in an elongated plate shape wider than the base plate 110 when viewed in the z direction. In the present embodiment, the bottom plate part 121 is integrated with the base plate 110. The two wall portions 122 stand 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 constitute a recess 10 a for accommodating the LED unit 2. The two arcuate portions 123 extend from the lower ends of the two wall portions 122 in the z direction, and are disposed with the concave portion 10a interposed therebetween. For example, the arcuate portion 123 in the present embodiment has a flatter shape than the arcuate portion 123 in the LED lighting 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 left end positions of the upper and lower arcuate portions 123 are aligned, but the right end positions are different. 86. The right end of the upper arcuate portion 123 in FIG. 86 is located on the right side of the right end of the lower arcuate portion 123. The line connecting the right ends of the upper and lower arcuate portions 123 is inclined by 45 ° with respect to the longitudinal direction of the first support 10A.

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

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

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

  In the present 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 supplying electric power to the plurality of LED modules 20 while supporting the plurality of LED modules 20, and includes a substrate 31, a bracket 32, and caps 331 and 332.

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

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

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

  As shown in FIG. 85, the cap 331 is attached to the end of each bracket 32 that is not inclined in the longitudinal direction. FIG. 89 shows a front view, a side view, and a front view showing a state before the cap 331 is attached. According to FIG. 89, the cap 331 has a pair of bendable plate portions 331a. The pair of plate portions 331a are formed so as to sandwich both side surfaces of the bracket 32 in a bent state. Further, screw holes are formed in the pair of plate portions 331a and 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 cap 331 prevents the inside of the LED lighting device A16 from being seen from the outside by covering the end portions of the brackets 32 and the cover 4.

  As shown in FIG. 84, the cap 332 is attached to the end of each bracket 32 that is inclined in the longitudinal direction. FIG. 90 shows a front view, a side view, a plan view, and a front view showing a state before attachment of the cap 332. Note that the front view in FIG. 90 is a front view seen from the direction orthogonal to the center line Cxy in FIG. 84, and the plan view is a view in the z direction. The cap 332 has a shape in which the cap 331 is stretched in a direction inclined by 45 °. The cap 332 has a pair of plate portions 332 a and a hole portion 332 b through which the wiring group 311 is passed. The pair of plate portions 332a are formed so as to sandwich both side surfaces of the bracket 32 in a bent state. Further, screw holes are formed in the pair of plate portions 332a, and 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 unit 2A is formed such that the left end in the drawing is inclined by 45 ° with respect to the x direction. FIG. 88 shows an enlarged side view of the inclined end portion. The other structure of the cover 4 of this embodiment is the same structure as the cover 4 in LED lighting apparatus A3. Such a cover 4 can be formed, for example, by cutting the cover 4 in the LED lighting device A3 so as to obtain a cut surface inclined by 45 ° with respect to the longitudinal direction. On the other hand, the cover 4 of the LED unit 2 forming the second light emitting unit 2B has an upper end inclined in FIG. 81 at an angle of 45 ° with respect to the y direction, and the cover 4 of the first light emitting unit 2A. It is formed to face the inclined end surface.

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

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

  The LED lighting device A16 is assumed to be used by being attached to the ceiling, for example, similarly to the LED lighting device A3. As described above, since the LED lighting device A16 is L-shaped, it is suitable for installation along a corner of a ceiling or a pillar.

  When L-shaped illumination is necessary, for example, two conventional fluorescent lamps or LED lighting devices A3 may be prepared and arranged in an L-shape. However, in such a case, the intersecting portion of the two fluorescent lamps or the LED lighting device A3 does not emit light, and further, a complicated impression is given to what is seen, which may deteriorate the appearance. On the other hand, in the LED lighting device A16, as shown in FIG. 81, the intersecting portion of the first and second light emitting portions 2A and 2B is covered with the cover 4, and it is difficult to give a complicated impression to what is seen. ing. For this reason, the LED illumination device A16 is more attractive than the case where a linear light source is simply crossed in an L shape.

  In the present embodiment, the substrates 31 in the first and second light emitting units 2 </ b> A and 2 </ b> B are conductively connected by the wiring group 311. For this reason, if there is one external power supply, both the first and second light emitting units 2A and 2B can be turned on.

  In the present embodiment, the cap 332 is sandwiched between the covers 4 in the first and second light emitting sections 2A and 2B. However, the covers 4 may be in contact with each other without the cap 332 being interposed. I do not care. Alternatively, the respective covers 4 in the first and second light emitting units 2A and 2B may be integrated.

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

  According to FIG. 94, the end portion of the substrate 31 of the present embodiment has a shape inclined so as to follow the inclination of the end portion 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 so as to be line-symmetric with respect to the center line Cxy along the arc.

  In LED lighting apparatus A17, since the several LED module 20 is arrange | positioned at the additional part 31a provided in the crossing part of L shape, a crossing part of L shape also light-emits. For this reason, the LED illumination device A17 does not decrease the light quantity at the L-shaped intersection, and can improve the appearance at the time of lighting.

  Furthermore, in this embodiment, since the LED module 20 of each additional portion 31a is axisymmetric about the center line Cxy, one of the first and second light emitting units 2A and 2B is prevented from becoming unevenly bright. Can look better.

  FIG. 95 shows an LED lighting device according to an eighteenth embodiment of the present invention. The LED illumination device A18 of this embodiment is different from the LED illumination device A16 in the structure of the L-shaped intersection, and the other configuration is the same as that of the LED illumination device A16.

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

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

  In such an LED lighting device A18, the additional board 31b is installed at the L-shaped intersection, and the LED module 20 is mounted on the additional board 31b. Therefore, the L-shaped intersection also emits light. For this reason, the crossing part of L character does not become dark, and it can improve appearance further.

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

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

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

  97 to 102 show an LED lighting device according to a twentieth embodiment of the present invention. The LED lighting device A20 of the present embodiment is described above in that the wing part 120 includes a pair of outer covers 127 and that the wing part 120 is directly attached to the attachment surface Ro without the base plate 110 being interposed. Although it is mainly different from the LED lighting device, the other configuration is the same, and the description is omitted as appropriate. FIG. 97 shows a perspective view of main parts of the LED lighting 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 part 120, FIG. 100 is a plan view of the wing part 120, FIG. 101 is a side view of the wing part, and FIG. 102 is a bottom view of the wing part 120. In addition, the structure provided with the outer side cover 127 in this embodiment is applicable also to all the above-mentioned LED lighting apparatuses provided with the wing part 120.

  Each of the outer covers 127 is connected to an end portion of the wall portion 122 in the y direction. The two outer covers 127 are arranged with the recess 10a interposed therebetween. Since the two outer covers 127 are symmetrical with respect to the concave portion 10a, only one outer cover 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 the boundary 127f and the boundary 127g.

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

  The second surface 127c is connected to the first surface 127b at the boundary 127f. The second surface 127c has a strip shape extending in 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 a matte surface, for example, hairline processing is performed. 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.

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

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

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

  In the LED lighting device A20, the outer surface 127a of the outer cover 127 includes a first surface 127b that is a mirror surface. Therefore, when the LED lighting device A20 attached to the attachment surface Ro is viewed, the attachment surface Ro is reflected on the first surface 127b. Further, the first surface 127b has an edge 127e facing the mounted surface Ro. Therefore, when the mounted surface Ro is reflected on the first surface 127b, the first surface 127b appears to be a part where the mounted surface Ro continues. Become. Therefore, such LED lighting device A20 is suitable for making the thickness (dimension in the z direction) smaller.

  In the LED lighting device A20, the first surface 127b extends in the vertical direction from the end edge 127e with respect to the mounted surface Ro. According to such a configuration, the attached surface Ro reflected on the first surface 127b can be easily seen as a surface that continues without bending to the actual attached surface Ro. Thereby, it becomes difficult to grasp | ascertain the 1st surface 127b as a site | part of LED lighting apparatus A20 further. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

  In the LED lighting device A20, the first surface 127b is planar. The planar first surface 127b accurately reflects the actual mounted surface Ro without distortion. According to such a configuration, the mounted surface Ro reflected on the first surface 127b can be easily seen as a series of surfaces following the actual mounted surface Ro. Thereby, it becomes difficult to grasp | ascertain the 1st surface 127b as a site | part of LED lighting apparatus A20 further. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

  In the LED lighting device A20, the outer surface 127a of the outer cover 127 includes a second surface 127c. Since the second surface 127c is not a mirror surface but a matte surface, the mounted surface Ro is not reflected on the second surface 127c. The second surface 127c is connected to the first surface 127b at a linear boundary 127f. If the mounted surface Ro does not appear on the second surface 127c and the boundary 127f is linear, the boundary 127f can be recognized as if it is an end of the LED lighting device A20. Therefore, it becomes easy to grasp | ascertain the site | part on the 2nd surface 127c side from the boundary 127f among the outer surfaces 127a as a site | part of LED lighting apparatus A20. Thereby, it becomes difficult to grasp | ascertain the 1st surface 127b as a site | part of LED lighting apparatus A20 further. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

  In the LED lighting device A20, the outer surface 127a is bent at the boundary 127f. Therefore, it can be recognized as if the boundary 127f is an end of the LED lighting device A20. Therefore, it becomes easier to grasp that the portion of the outer surface 127a on the second surface 127c side from the boundary 127f is a part of the LED lighting device A20. Thereby, it becomes difficult to grasp | ascertain the 1st surface 127b as a site | part of LED lighting apparatus A20 further. Therefore, such an LED lighting device A20 is suitable for making the thickness appear smaller.

  103 to 106 show an LED lighting device according to a twenty-first embodiment of the present invention. The LED lighting device A21 of the present embodiment is different from the above-described embodiment in that the most part of the LED lighting device A21 is embedded deeper than the opening W provided in a wall surface W such as a ceiling that is a mounting surface. . The LED lighting device A21 includes a mount 1 and an LED unit 2.

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

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

  The frame portion 15b is connected to the peripheral edge of the box portion 15a, and has an elongated rectangular frame shape as a whole. As shown in FIGS. 105 and 106, the frame portion 15 b is formed at a right angle to the end of the box portion 15 a, that is, a portion having a width of about 8 mm and parallel to the wall surface W, and from this portion toward the wall surface W. And a portion extending about 7 mm. Accordingly, the frame portion 15 b is slightly larger than the opening Wa of the wall surface W and is engaged with the wall surface W.

  The LED unit 2 is fixed to the mount 1 by a holder 11. The holder 11 has a configuration similar to the configuration shown in FIGS. In the present embodiment, the holder 11 is formed by bending a metal plate, and includes a locking portion 11d and a flexible portion 11b. The locking portion 11 d is a portion that is bent so that the metal plate protrudes toward the LED unit 2, and engages with the convex portion 326 of the outer portion 322 of the bracket 32 of the LED unit 2. The flexible portion 11b is located closer to the root side than the locking portion 11d, and allows the locking portion 11d to be engaged with and separated from the outer portion 322 by being elastically deformed. . As shown in FIG. 107, the holder 11 may be the same as that shown in FIGS.

  In the present 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 supported by the two engaging portions 15 c formed on the mount 1 so as to be rotatable with respect to the mount 1. As shown in FIG. 106, the wire holder 161 has a portion that curves along the cover 4 of the LED unit 4 and a bent portion that engages with the outer portion 322 of the bracket 32 of the LED unit 2.

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

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

  Most of the LED lighting device A21 is located in the back of the wall surface W. For this reason, it is possible to further reduce the portion protruding from the wall surface W. Thereby, it is possible to make the whole wall surface W into the state near a flat surface, and the impression that the room is smart can be given.

  By housing the LED unit 2 in the box portion 15a, the LED unit 2 can be disposed at the back of the wall surface W, and the LED unit 2 can be fixed at a desired position. The holder 11 enables the LED unit 2 to be attached to the mount 1 by a simple operation. Further, the holder wire 161 is convenient for easily attaching and detaching the LED unit 2. On the other hand, since the holder wire 161 is a thin member made of a wire, there is little possibility that the light from the LED unit 2 is unduly blocked.

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

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

  In the LED lighting device A22, the length of the box portion 15a of the mount 1 is set to a length obtained by multiplying the length of the plurality of LED units 2 by substantially an integer. In the box portion 15a, a plurality of LED units 2 are arranged in series.

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

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

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

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

  FIG. 113 shows an LED lighting device according to a twenty-fourth embodiment of the present invention. The LED lighting device A24 of the present embodiment includes a plurality of LED units 2. The box portion 15 a has a width of about 100 mm and a length that is substantially an integral multiple of the length of the LED unit 2. Thereby, the plurality of LED units 2 are accommodated in the box portion 15a in series and in two rows. According to such an embodiment, a larger room can be illuminated with sufficient illuminance.

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

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

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

  Further, in the LED lighting devices A16 to A19, the first and second light emitting portions 1A and 2A are formed so as to be elongated in the directions orthogonal to each other, but the direction in which the first and second light emitting portions in the present invention extend. Is not limited to the embodiment described above. For example, for the purpose of decoration or the like, the present invention can also be implemented when the angle formed by the extending directions of the first and second light emitting portions is an acute angle or an obtuse angle.

  The present invention is not limited to the configuration in which the LED module 20 is mounted on the substrate 31 or the additional substrate 31b, and an insulating layer and a wiring pattern may be formed on the support member 3, and the LED module 20 may be mounted on the insulating layer and the wiring pattern. The configuration having the LED module 20 is suitable for efficiently emitting the light from the LED chip 22, but the present invention is not limited to this. 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 straight line index Ro mounted surface S1, S2 switch T transformer W, W ′, W ″ wall surface (mounted surface)
x (first) direction y (third) direction z (second) direction 1 mount (support)
2 LED unit 3 Support 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 Joint portion 12b Flexible portion 12c Wedge-shaped portion 13 Holder 13a Locking piece 13b Flexible portion 13c Fixing portion 14 Holder 14a Locking piece 14b Flexible portion 14c Base portion 14d Notch 14e, 14f Bending portion 14g Protruding portion 15a Box portion 15b Frame portion 15c Engaging portion 161 Wire holder 162 Release lever 20 LED module 20a Illuminance confirmation LED chip 20b LED chip 21 for notification 21 Lead 21a Mounting terminal 22 LED chip 23 Sealing resin 24 Reflector 31 Substrate 31a Additional portion 31b Additional substrate 32 Bracket 32a accommodation space 32b recess 33 screw Convex)
34 Connector 34a, 34b, 34c Connector 35 Shaft 35a Root part 35b Tip part 36 Electric wire group 41, 42 Locking piece 41a End part 41b Stepped part 42a Locking surface 42b Inclined surface 43 Center part (strong diffusion part)
44 Diffusion member 51 Case 51a Notch 51b Holder 51c, 51d Folding part 52 Power supply board 53 Electronic component 54 Detection means 55 Voltage detection means 56a, 56b Resistor 57 Adjustment resistor 110 Base plate 110a Mounting surface 110b, 110c Index part 111 Swelling portion 111a (for wing connection) screw hole 112 (for ceiling mounting) screw hole 112a long hole portion 112b concave portion 112c screw hole 112d indicator portion 113 long plate portion 114, 114b, 114c, 115 plate member 114a notch 116 light shielding part 116a hollow part 116b hole part 120 wing part 120h screw hole 121 bottom plate part 121a screw through hole 122 wall part 123 arcuate part 124 connecting part 125 regulating member 126 cap 127 outer cover 127a outer surface 127b first surface 127c second 127d third surface 127e, 127h edges 127f, 127 g boundary 131 screws (connecting means)
132 screws (attachment 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 Recess 322 Outer part 322a Reflector 323 (for fixing) Locking groove 324, 325 (for cover) Locking groove 324a Locking surface 325a Locking surface 325b Projecting piece 326 Projecting part 331 332 Cap 361 Main wire 361a Power line 361b Signal line 362 Connection line

Claims (8)

A first LED lighting device extending in a first direction; and a second LED lighting device extending in a second direction orthogonal to the first direction, wherein the first LED lighting device and the second LED lighting device. The LED illumination device is a L-shaped LED illumination device arranged so as to be symmetrical with respect to a center line inclined at 45 ° with respect to the first direction and the second direction. There,
A first support extending in the first direction; a first LED unit attached to the first support; a second support extending in the second direction; and the second support. A second LED unit attached to the body,
Each of the first and second LED units is
An LED lighting device, comprising: a plurality of LED modules; a support member that supports the plurality of LED modules; and a cover that covers the support member from a light emission side of the plurality of LED modules.   The support member includes an elongated rectangular first substrate or second substrate that extends in the first direction or the second direction, respectively, and the first member or the second substrate includes the first substrate or the second substrate. The LED lighting device according to claim 1, wherein a plurality of LED modules are provided.   The LED lighting device according to claim 2, wherein the plurality of LED modules are arranged to be line-symmetric with respect to the center line.   4. The LED lighting device according to claim 2, wherein end portions of the first substrate and the second substrate have a shape inclined along the center line. 5.   The LED lighting device according to claim 2, further comprising a wiring that electrically connects the first substrate and the second substrate.   The LED wiring device according to claim 5, wherein the wiring is arranged in an L shape at a connection portion between the first LED lighting device and the second LED lighting device.   The LED illumination device according to claim 2, wherein an intersection of the first substrate and the second substrate is covered with the cover. The first or second LED unit further includes a power conversion unit that converts external commercial AC power into DC power and supplies DC power to the plurality of LED modules,
The LED lighting device according to claim 1, wherein the power conversion unit is provided on the support member from a side opposite to a light emitting side of the plurality of LED modules.

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