JP6016141B2 - LED lighting fixtures - Google Patents

Description

  The embodiment relates to an LED lighting apparatus using an LED (Light Emitting Diode) as a light source.

  LEDs have been widely used not only for industrial fields but also for general lighting because of their features such as long life, low power consumption, impact resistance, high-speed response, high-purity display color, and lightness and thinness. Moreover, the LED lighting fixture which suspended the fixture main body from the ceiling via the angle fixed to the fixture main body is known.

JP 2011-86560 A

  Provided is an LED lighting apparatus capable of adjusting the angle in a state where the apparatus main body is suspended from a ceiling or the like.

The LED lighting apparatus according to the embodiment includes a main body having a light source mounting surface on one side and a radiation fin on the other side, an LED (Light Emitting Diode) module mounted on the light source mounting surface, and a light source mounting surface. A hanging angle having a pair of vertical plate portions extending to the opposite side, and a horizontal plate portion connecting between the pair of vertical plate portions , extending to the opposite side of the light source mounting surface, the main body portion, and a pair of angle attachment portion which connects the pair of vertical plate portions, and is disposed between the horizontal plate portion of the body and the angle, and a power supply unit extending in the longitudinal direction of the transverse plate portion; equipped with, Each of the pair of angle mounting portions is provided at an angle mounting hole penetrating the angle mounting portion, a tip side of the angle mounting portion with respect to the angle mounting hole, and a light source mounting surface side with respect to the power supply portion. Angle support The angle mounting hole and the angle support portion have the same position in the width direction in the angle mounting portion and are aligned in the extending direction of the angle mounting portion, and each of the pair of vertical plate portions is the angle A through hole in which a support portion is loosely fitted, and a long hole formed on a circumference of a circle centering on the through hole, overlapping the angle mounting hole in a state in which the angle support portion is loosely fitted in the through hole. has, the hanging angle is a bolt that is screwed into the angle attachment holes through the slot that is fixed with respect to the angle attachment portion.

  According to the present invention, stable angle adjustment of the instrument body is possible.

The external appearance perspective view of the LED lighting fixture of embodiment. The top view by the side of the light source attachment surface in the main body of the LED lighting fixture of embodiment. The perspective view by the side of the radiation fin in the main body. The side view of the main body. The top view of the LED module in the LED lighting fixture of embodiment. (A) is a top view of the some reflecting plate superimposed on the some LED module, (b) is a top view of the one reflecting plate superimposed on one LED module. The schematic side view which shows the state by which the LED module of embodiment was pulled down from the ceiling via the angle. The schematic diagram which shows the example of attachment of the angle with respect to a ceiling. The perspective view of the reinforcement metal fitting for hanging one angle from the ceiling. The perspective view of the LED lighting fixture of embodiment and the guard attached to it. The perspective view of the LED lighting fixture of embodiment with which the guard of FIG. 10 was attached. The schematic perspective view for demonstrating the attachment method which attaches the guard of FIG. 10 to LED lighting fixture.

  Hereinafter, embodiments will be described with reference to the drawings. In the drawings, the same reference numerals are assigned to the same elements.

  Drawing 1 is an appearance perspective view of LED lighting fixture 1 of an embodiment.

  The LED lighting apparatus 1 according to the embodiment includes a main body 2, an LED module 3 (shown in FIG. 5), a reflector 4 (shown in FIGS. 6A and 6B), a power supply unit 5, and a hanging angle. 6 (hereinafter also simply referred to as an angle).

  The LED lighting apparatus 1 according to the embodiment is a large-sized lighting apparatus whose power consumption is 100 to 500 W, for example. The LED lighting apparatus 1 is attached via an angle 6 to, for example, a high ceiling such as a gymnasium or an elevating unit suspended from the ceiling.

  First, the main body 2 will be described.

  FIG. 2 is a plan view of the main body 2 on the light source mounting surface 11 side.

  FIG. 3 is a perspective view of the radiation fin 15 side opposite to the light source mounting surface 11 of the main body 2.

  4A is a side view seen from the X direction in FIG. 3, and FIG. 4B is a side view seen from the Y direction in FIG.

  The main body 2 has a circular plate 13. One surface side of the plate 13 is formed in a shallow dish shape, and a light source mounting surface 11 is formed on the bottom surface. At the outer peripheral edge of the light source mounting surface 11, an annular rim 14 is provided that protrudes from the light source mounting surface 11 toward the front side in FIG.

  The other surface of the plate 13 functions as the heat radiating surface 12, and a plurality of heat radiating fins 15 are provided on the heat radiating surface 12. The plurality of heat radiating fins 15 project to the opposite side of the light source mounting surface 11 perpendicular to the heat radiating surface 12 (this direction is expressed as the Z direction).

  1 and 3, the XY plane orthogonal to the Z direction represents a plane parallel to the heat dissipation surface 12. The X direction and the Y direction are orthogonal to each other. All the radiation fins 15 extend in the Y direction, which is the same direction.

  For example, the main body 2 is formed by die-casting aluminum or a metal containing aluminum as a main component, and the plate 13 and the heat radiating fins 15 are integrally provided. The entire surface of the main body 2 including the plate 13 and the heat radiating fins 15 is formed with an aluminum oxide film by, for example, alumite treatment in order to improve heat dissipation.

  A through hole 13 a is formed at the center of the plate 13. So it's shown in Figure 2

Similarly, the light source mounting surface 11 is formed in an annular shape around the through hole 13a. A plurality of screw holes 24 are formed in the light source mounting surface 11.

  Next, the LED module 3 will be described with reference to FIG.

  The LED module 3 includes a substrate 31 and LED elements 32 mounted on the mounting surface of the substrate 31. A plurality (30 in the example shown in FIG. 5) of LED elements 32 are mounted on one substrate 31. For example, the plurality of LED elements 32 are mounted in groups of three.

  It is preferable that the element substrate (or package substrate) of the LED element 32 and the substrate 31 of the LED module 3 have the same or close thermal expansion coefficient. For example, when the element substrate of the LED element 32 is a ceramic substrate, a ceramic substrate can be used as the substrate 31.

  Alternatively, a metal plate that is cheaper than a ceramic substrate may be used as the substrate 31. In the embodiment, an iron substrate 31 having a smaller difference in thermal expansion coefficient with respect to the ceramic substrate than that of aluminum or copper is used. The substrate 31 has a substantially fan-shaped planar shape in which a corner on the central angle side is cut.

  The LED element 32 is mounted on the mounting surface with the light emission surface facing away from the mounting surface of the substrate 31. The back surface opposite to the mounting surface of the substrate 31 is in contact with the light source mounting surface 11 of the main body 2.

  A pair of through holes 34 is formed in the substrate 31. The through holes 34 are aligned with a pair of screw holes 24 arranged in the radial direction of the light source mounting surface 11 shown in FIG.

  FIG. 5 shows a layout in which, for example, six LED modules 3 are attached to the light source attachment surface 11.

  The outer shape of the light source mounting surface 11 is circular. The six LED modules 3 are arranged at equal intervals along the circumferential direction around the center of the light source mounting surface 11.

  The through hole 34 of each LED module 3 is aligned with the screw hole 24 shown in FIG. 2 formed in the light source mounting surface 11. Then, the LED module 3 is fastened to the light source mounting surface 11 together with the later-described reflector 4 by screws screwed into the screw holes 24 through the through holes 34.

  Next, the reflector 4 will be described with reference to FIGS. 6 (a) and 6 (b).

  In the reflecting plate 4, a plurality of light guide holes 80 penetrating the front and back of the reflecting plate 4 are formed. Then, as shown in FIG. 6B, the reflector 4 is superimposed on the LED module 3 with the LED element 32 of the LED module 3 facing the light guide hole 80.

  The reflection plate 4 is a molded product of white resin having reflectivity with respect to light emitted from the LED element 32. A reflective film is formed on the surface of the reflective plate 4 and the inner peripheral surface of the light guide hole 80. The reflective film is reflective to the light emitted from the LED element 32, and for example, an aluminum film formed by vapor deposition can be used.

  In addition, a screw hole 85 is formed in the reflection plate 4, and the screw hole 85 is aligned with the through-hole 34 formed in the substrate 31 of the LED module 3 described above, and the substrate 31 and the reflection plate 4 have a common screw 70. In FIG. 6B, the light source mounting surface 11 is fastened together.

  That is, the screw 70 shown in FIG. 6B is screwed into the screw hole 24 of the light source mounting surface 11 shown in FIG. 2 through the screw hole 85 of the reflector 4 and the through-hole 34 of the LED module 3, so that the reflector 4 The LED module 3 is fixed to the light source mounting surface 11. At this time, a protrusion (not shown) provided on the back surface side of the reflecting plate 4 presses the substrate 31 against the light source mounting surface 11.

  Accordingly, the back surface of the substrate 31 is in contact with the light source mounting surface 11, and the heat accompanying the light emission of the LED is transmitted through the substrate 31 and the light source mounting surface 11 to the radiation fins 15 provided on the opposite side of the light source mounting surface 11. The heat is dissipated.

  The LED lighting apparatus 1 of the embodiment is suspended from the ceiling via the angle 6. Alternatively, the angle 6 can be attached to an elevating part suspended from the ceiling.

  As shown in FIGS. 3, 4 (a) and 4 (b), a pair of angle mounting portions 75 are provided on the heat radiating fin 15 side of the main body 2 and on the outer peripheral side of the main body 2. The pair of angle mounting portions 75 are provided at both ends of a straight line that extends in the diameter direction through the center of the main body 2. The angle attaching portion 75 is formed in a plate shape, protrudes in the same Z direction as the heat radiating fins 15, and is arranged in parallel to the heat radiating fins 15. That is, the angle attachment portion 75 extends in the same Y direction as the heat radiation fin 15.

  An angle mounting hole 72 is formed in the angle mounting portion 75. The angle mounting hole 72 is a screw hole penetrating the angle mounting portion 75, and the axial direction of the screw hole is parallel to the light source mounting surface 11 and extends in the extending direction (Y direction) of the radiation fin 15. It is perpendicular to it.

  In addition, the angle mounting portion 75 is provided with an angle support protrusion 71. The angle support protrusion 71 is provided on the distal end side of the angle mounting portion 75 (upward in FIGS. 3, 4 (a) and (b)) with respect to the angle mounting hole 75. The angle mounting hole 72 and the angle support protrusion 71 are aligned in the protruding direction (Z direction) of the angle mounting portion 75 with the positions in the width direction (Y direction) of the angle mounting portion 75 being matched.

  The angle support protrusion 71 is a direction parallel to the axial direction of the angle mounting hole 72 and protrudes outward in the diameter direction of the main body 2. The angle support protrusion 71 is formed in a cylindrical shape in which an internal thread is formed on the inner peripheral wall.

  As shown in FIG. 1, the angle 6 includes a pair of vertical plate portions 62 and a horizontal plate portion 61 that connects between the pair of vertical plate portions 62. The vertical plate portion 62 and the horizontal plate portion 61 are defined as follows. It is provided integrally.

  The horizontal plate 61 extends in the longitudinal direction (X direction) of the power supply unit 5 above the power supply unit 5. The vertical plate portion 62 is connected to the angle mounting portion 75 of the main body 2 from both ends in the longitudinal direction of the horizontal plate portion 61.

And is in contact with and overlapped with the outer surface of the angle mounting portion 75.

  The vertical plate portion 62 is formed with a through hole 62a and a long hole 62b. Both the through hole 62 a and the long hole 62 b penetrate the vertical plate portion 62. The angle support protrusion 71 is loosely fitted in the through hole 62a. That is, the diameter of the through hole 62 a is slightly larger than the outer diameter of the angle support protrusion 71.

  The long hole 62b is formed in an arc shape on the distal end side of the vertical plate portion 62 with respect to the through hole 62a. The locus of the long hole 62b is a part of the circumference of a circle centered on the center of the through hole 62a. In a state where the angle support protrusion 71 is loosely fitted in the through hole 62a, the long hole 62b overlaps the angle mounting hole 72 shown in FIG. 4A, and the angle mounting hole 72 is exposed from the long hole 62b.

  The vertical plate portion 62 of the angle 6 is fixed to the angle mounting portion 75 of the main body 2 by the bolt 51 that passes through the long hole 62 b and is screwed into the angle mounting hole 72. The outer diameter of the head of the bolt 51 is larger than the width of the long hole 62 b, and the vertical plate portion 62 can be firmly pressed against the angle mounting portion 75.

  On the outer peripheral side of the angle support protrusion 71, a ring-shaped retaining member 53 having a diameter larger than that of the through hole 62a is provided. The retaining member 53 is provided on a retaining bolt 52 that can be attached to and detached from the screw hole 71 a of the cylindrical angle support protrusion 71.

  Therefore, when the angle 6 is attached to or removed from the main body 2, the angle support protrusion 71 is loosely fitted into the through hole 62 a of the vertical plate portion 62 by removing the retaining bolt 52 from the angle support protrusion 71. Can do.

  When the angle 6 is attached to the main body 2, the retaining bolt 52 is screwed into the screw hole 71 a of the angle support protrusion 71. Accordingly, the retaining member 53 prevents the angle support protrusion 71 from coming off from the through hole 62a.

  The angle mounting portion 75 provided with the angle support protrusion 71 and the angle mounting hole 72 is provided on the opposite side of the light source mounting surface 11 and on the outer peripheral side of the main body 2. The vertical plate portion 62 of the angle 6 extends to the opposite side of the light source mounting surface 11, and the horizontal plate portion 61 crosses the upper side of the main body 2 on the opposite side of the light source mounting surface 11. Therefore, the angle 6 does not shield the light emitted from the LED module 3. Further, the vertical plate portion 62 is provided outside the heat radiating fins 15 and does not hinder the air flow between the heat radiating fins 15.

  For example, a lighting fixture attached to a high ceiling such as a gymnasium is large and heavy. Therefore, in order to directly attach such a lighting fixture to the ceiling, it is necessary to increase the thickness of the mounting portion in order to ensure the strength of the mounting portion on the lighting fixture side. This increases the weight of the entire lighting fixture. If it becomes heavy and heavy, construction becomes difficult.

  On the other hand, in the present embodiment, the main body 2 is secured to the ceiling or the elevating part and the like by attaching the angle 6 and suspending the main body 2 from the angle 6 to ensure the strength of the attaching part to the ceiling or the like. Can be made lighter.

  Further, the vertical plate portion 62 of the angle 6 is superposed in surface contact with the outer surface of the arm mounting portion 75 provided in the main body 2. Thereby, the heat conductivity from the main body 2 side to the angle 6 can be improved, and the heat dissipation through the angle 6 can be enhanced. That is, the angle 6 can function not only as an attachment member for attaching the LED lighting apparatus 1 to the ceiling or the like, but also as a heat radiating member.

  The horizontal plate portion 61 and the vertical plate portion 62 of the angle 6 are made of a metal plate such as iron from the viewpoint of securing strength. By forming a film having a higher emissivity (heat dissipation) than the metal plate material on the surface of the metal plate, the heat dissipation of the angle 6 can be further increased.

  As shown in FIG. 1, a plurality of attachment holes 61 a, 61 b and 61 c are formed in the horizontal plate portion 61 so as to penetrate the horizontal plate portion 61. Further, the horizontal plate 61 is formed with a through hole 61d through which an electric cable for connecting the power supply unit 5 and a power supply box or control box provided on the ceiling is passed.

  For example, as shown in FIG. 8A, two anchor bolts 101 are installed on the ceiling 100. For example, the anchor bolt 101 is passed through a pair of mounting holes 61 a in the horizontal plate portion 61 of the angle 6, and the upper surface of the horizontal plate portion 61 is brought into contact with the ceiling 100. For example, two nuts 102 are fastened to the anchor bolt 101 penetrating the horizontal plate portion 61. That is, the LED lighting apparatus 1 is suspended from the ceiling via the angle 6.

  If a pair of mounting holes 61b having a narrower pitch than the pair of mounting holes 61a shown in FIG. 1 is used, two-point suspension at a narrower pitch can be handled.

  According to the embodiment, the angle 6 can be tilted with the angle support protrusion 71 of the main body 2 as a fulcrum. Therefore, as shown in FIG. 7, even if the LED lighting apparatus 1 is attached to the ceiling 100 inclined with respect to the vertical direction (vertical direction in FIG. 7), the light emission surface can be kept horizontal. Alternatively, even when attached to a horizontal ceiling, the direction in which the light emitting surface faces can be adjusted by tilting the angle 6.

  If the bolt 51 screwed into the angle mounting hole 72 of the main body 2 is loosened, the angle 6 can be tilted with the angle support protrusion 71 as a fulcrum. As the angle 6 is tilted, the angle mounting hole 72 relatively moves along the longitudinal direction of the long hole 62 b of the vertical plate portion 62. Then, the angle 6 can be fixed at that angle by inclining the angle 6 with respect to the main body 2 and screwing the bolt 51 into the angle mounting hole 72 through the long hole 62b.

  Further, according to the embodiment, when the angle of the angle 6 is adjusted in a state where the LED lighting apparatus 1 is suspended from the ceiling, even if the bolt 51 is excessively loosened or the bolt 51 is removed, Since the angle support protrusion 71 is loosely fitted in the through hole 62a of the plate portion 62, the state where the main body 2 is suspended from the angle 6 can be maintained. That is, it is possible to prevent the main body 2 from being accidentally dropped.

  In addition, according to the embodiment, the LED lighting device 1 can be hung at a single point.

  In a lighting device with a large luminous flux, a large heat sink is required, and the entire lighting device becomes large and heavy. When such a large and heavy lighting fixture is suspended at one point with a single bolt, it cannot withstand horizontal vibration due to, for example, an earthquake, and there is a concern that the angle may be damaged.

  Therefore, the vibration resistance performance in the horizontal direction can be enhanced by suspending the reinforcing metal fitting 90 shown in FIG.

  The reinforcing metal fitting 90 has a flat plate portion 91 and a pair of side plate portions 92. The outer diameter shape of the flat plate portion 91 is formed in a rectangular shape. A plurality of through holes 93 a to 93 f are formed in the flat plate portion 91. The length in the longitudinal direction of the flat plate portion 91 is shorter than the length in the longitudinal direction of the horizontal plate portion 61 of the angle 6. The width of the flat plate portion 91 is slightly larger than the width of the horizontal plate portion 61.

  Side plate portions 92 are integrally provided on both edges in the width direction of the flat plate portion 91. The side plate portion 92 protrudes to one surface side of the flat plate portion 91. For example, the reinforcing metal fitting 90 is obtained by bending both ends of the rectangular metal plate in the width direction.

  FIG.8 (b) shows the form which attached the LED lighting fixture 1 to the power supply box 120 exposed from the ceiling surface 100a.

  In this case, the flat plate portion 91 is superimposed on the upper surface of the horizontal plate portion 61 of the angle 6 with the protruding direction of the side plate portion 92 facing downward. The upper surface of the flat plate portion 91 of the reinforcing metal fitting 90 is brought into contact with the power supply box 120. The upper surface of the flat plate portion 91 and the power supply box 120 are in surface contact with each other, and the stability of the LED lighting apparatus 1 is increased.

  A pair of through-holes 93a of the reinforcing metal fitting 90 are fitted to a pair of mounting holes 61a of the horizontal plate portion 61 shown in FIG. Then, the bolt 104 shown in FIG. 8B penetrates the through hole 93 a and the attachment hole 61 a from the upper surface side of the flat plate portion 91, and the nut 105 is fastened to the bolt 104. Thereby, the reinforcing metal fitting 90 is fixed to the horizontal plate portion 61 of the angle 6.

  Further, the through hole 93c of the reinforcing metal fitting 90 is aligned with the mounting hole 61c (FIG. 1) of the horizontal plate portion 61. And the anchor bolt 103 provided in the ceiling 100 penetrates the through-hole 93c and the attachment hole 61c. A nut 102 is fastened to the anchor bolt 103 that passes through the through hole 93c and the attachment hole 61c. Thereby, the reinforcing metal fitting 90 and the angle 6 are fixed to the ceiling 100.

  Next, FIG.8 (c) shows the form which attached the LED lighting fixture 1 to the power supply box 121 provided in the inside of the ceiling 100. FIG.

  When the power supply box 121 is not exposed below the ceiling 100, the upper surface of the reinforcing metal fitting 90 cannot be brought into surface contact with the power supply box 121. In this case, when the reinforcing bracket 90 is attached to the horizontal plate portion 61 as shown in FIG. 8B, the head of the bolt 104 protruding above the reinforcing bracket 90 makes point contact with the ceiling surface 100a, and LED lighting The stability of the instrument is impaired.

  Therefore, when the power supply box 121 is not exposed below the ceiling 100, the reinforcing bracket 90 is reversed and attached to the horizontal plate portion 61 of the angle 6 as in FIG. 8B. That is, the flat plate portion 91 is overlaid on the upper surface of the horizontal plate portion 61 with the protruding direction of the side plate portion 92 facing upward. The surface that was the upper surface of the flat plate portion 91 in FIG. 8B is overlaid on the upper surface of the horizontal plate portion 61 as the lower surface of the flat plate portion 91 in FIG.

  The side plate portion 92 of the reinforcing metal fitting 90 projects upward from the head of the bolt 104, and the upper end of the side plate portion 92 is brought into contact with the ceiling surface 100a. The contact between the upper end of the side plate portion 92 and the ceiling surface 100a has a larger contact area than the point contact between the bolt 104 and the ceiling surface 100a, and the stability of the LED lighting apparatus can be increased.

  Also in the case of FIG. 8C, the through hole 93 c of the reinforcing metal fitting 90 is aligned with the mounting hole 61 c of the horizontal plate portion 61. And the anchor bolt 103 provided in the ceiling 100 penetrates the through-hole 93c and the attachment hole 61c. A nut 102 is fastened to the anchor bolt 103 that passes through the through hole 93c and the attachment hole 61c. Thereby, the reinforcing metal fitting 90 and the angle 6 are fixed to the ceiling 100.

  One of the two through holes 93d and 93e formed in the reinforcing metal fitting 90 is fitted in the through hole 61d of the horizontal plate portion 61 in the state of FIG. 8B, and the electric cable is passed therethrough. The other of the through holes 93d and 93e is aligned with the through hole 61d of the horizontal plate portion 61 in the state of FIG. 8C in which the reinforcing metal fitting 90 is inverted from the state of FIG. Passed.

  8A and 8B, the horizontal plate portion 61 of the angle 6 is reinforced by the reinforcing metal fitting 90, so that the horizontal vibration in the one-point suspension can be prevented. Resistance can be increased.

  Further, a long hole 93f formed on the side of the through hole 93b shown in FIG. 9 and connected to the through hole 93b is formed on the side of the mounting hole 61b in the horizontal plate portion 61 shown in FIG. 1 and connected to the mounting hole 61b. Aligned with the long hole 61e.

  A shaft member (not shown) provided on the ceiling is passed through the long holes 93f and 61e. Thereby, rotation of the LED lighting fixture centering on the anchor bolt in the case of 1-point suspension can be prevented.

  Further, in the four attachment holes 61f formed in the horizontal plate portion 61 shown in FIG. 1, a lifting portion (not shown) suspended from the ceiling can be screwed.

  Further, when the guard 64 shown in FIG. 10 is attached to the light source side of the main body 2 as shown in FIG. 11, when the LED lighting apparatus 1 is attached to the ceiling of a gymnasium, for example, the light source can be prevented from colliding with the ball. it can.

  The guard 64 has an outer frame 65 and an inner frame 66 provided inside the outer frame 65.

  The outer frame 65 includes a ring portion 67 and a side surface portion 68 provided on the outer peripheral edge portion of the ring portion 67. The side surface portion 68 protrudes to one surface side of the ring portion 67.

  Two attachment brackets 78 are provided on the side surface portion 68. The two mounting brackets 78 are arranged around the center of the outer frame 65 at intervals of 180 °, for example. The mounting bracket 78 is provided so as to protrude from the side surface portion 68 to the inner peripheral side, and the end portion on the clockwise side in FIG. 10 is bent downward (to the ring portion 67 side).

  In addition, the side surface portion 68 is provided with two attachment portions 69 in which screw holes 69a are formed. The mounting portion 69 is provided so as to protrude from the side surface portion 68 toward the inner peripheral side at a position between the two mounting brackets 78 in the circumferential direction.

  The rim 14 of the main body 2 is provided with four guard mounting portions 17 projecting to the outer peripheral side. The four guard mounting portions 17 are arranged at 90 ° intervals in the circumferential direction. A mounting hole 17 a that penetrates the guard mounting portion 17 is formed in the guard mounting portion 17.

  Next, a method for attaching the guard 64 to the main body 2 will be described with reference to FIGS.

  As shown in FIG. 12B, the attachment portion 69 of the guard 64 is overlaid under the guard attachment portion 17 of the main body 2. At this time, the lower surface of the mounting bracket 78 of the guard 64 is placed on the guard mounting portion 17 of the main body 2 so that the guard 64 can be positioned with respect to the main body 2 without dropping.

  The guard 64 is rotated counterclockwise in FIG. 12A with respect to the main body 2, and the portion bent downward of the mounting bracket 78 is abutted against the end 17 b of the guard mounting portion 17 of the main body 2.

As a result, the mounting bracket 78 is supported on the guard mounting portion 17 and the mounting portion 69 of the guard 64 is aligned under the guard mounting portion 17 as shown in FIG.

  12B is screwed into the mounting hole 69a of the mounting portion 69 through the mounting hole 17a of the guard mounting portion 17, so that the guard 64 is fixed to the main body 2.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... LED lighting fixture, 2 ... Main body, 3 ... LED module, 4 ... Reflector plate, 5 ... Power supply unit, 6 ... Angle, 11 ... Light source mounting surface, 15 ... Radiation fin, 31 ... Substrate, 53 ... Retaining member, 61 ... Horizontal plate portion, 62 ... Vertical plate portion, 62b ... Long hole, 71 ... Angle support protrusion, 72 ... Angle mounting hole, 75 ... Angle mounting portion, 80 ... Light guide hole

Claims (3)

A main body having a light source mounting surface on one side and a radiation fin on the other side;
An LED (Light Emitting Diode) module mounted on the light source mounting surface;
A hanging angle having a pair of vertical plate portions extending on the opposite side of the light source mounting surface, and a horizontal plate portion connecting between the pair of vertical plate portions,
A pair of angle mounting portions that extend to the opposite side of the light source mounting surface and connect the main body portion and the pair of vertical plate portions;
It is disposed between the transverse plate portion of the body and the angle, and a power supply unit that extends in the longitudinal direction of the transverse plate portion;
Equipped with a,
Each of the pair of angle mounting portions is provided at an angle mounting hole penetrating the angle mounting portion, a tip side of the angle mounting portion with respect to the angle mounting hole, and a light source mounting surface side with respect to the power supply portion. An angle support, and
The angle mounting hole and the angle support portion are aligned in the extending direction of the angle mounting portion, with the same position in the width direction of the angle mounting portion.
Each of the pair of vertical plate portions overlaps the through hole into which the angle support portion is loosely fitted, and the angle mounting hole in a state in which the angle support portion is loosely fitted into the through hole, and is centered on the through hole. A long hole formed on the circumference of the circle,
The LED lighting apparatus according to claim 1, wherein the hanging angle is fixed to the angle mounting portion by a bolt screwed into the angle mounting hole through the long hole . Wherein a pair of angle attachment portion, LED lighting fixture of claim 1 provided on the outer peripheral side of the front Stories body.   The LED lighting apparatus according to claim 1, wherein the power supply unit is provided between the pair of vertical plate units.

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