JP2011192579A - Led luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a LED luminaire in which a nonluminous coupling portion is hardly conspicuous and the continuity of line-shaped lighting is maintained when LED lighting units are lit while they are disposed side by side in a line. <P>SOLUTION: The LED luminaire 1 has an LED module 2, a pair of long side plates 12, a lower opening 18A that is formed to be squarely faced by the pair of side plates 12 and between lower ends of the pair of side plates 12 in the lateral direction, a pair of end plates 13A, 13B that are formed between both ends 12g, 12h of the pair of the side plates 12 in the longitudinal direction and having side openings 18B at the lower end side in the lateral direction, an appliance body 4 in which a substrate 9 for the LED module 2 is disposed so that radiation light from the luminous diodes 8 is emitted from the lower opening 18A and the side opening 18B, a chassis attached to a construction, and an attachment means for attaching the appliance body 4 to the chassis. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an LED lighting fixture that is attached to a construction such as a ceiling that uses a light emitting diode as a light source and uses the emitted light for illumination.

  This type of LED lighting fixture is being developed and is becoming popular as a replacement for conventional fluorescent lighting fixtures because of its low power consumption and the need for semi-permanent maintenance work such as lamp replacement. In an LED lighting fixture, an LED module formed by mounting a plurality of light emitting diodes on a substrate is usually directly attached to a housing (equipment main body). Therefore, some LED lighting fixtures have a structure in which an LED module is accommodated in a housing so that an operator does not touch a light emitting diode when the LED lighting fixture is attached to the ceiling.

  In addition, the LED lighting apparatus may be attached so as to be connected to or adjacent to the ceiling. For example, an LED lighting device capable of connecting LED lighting units in a line shape has been proposed (see Patent Document 1). This LED lighting device of the prior art includes a male connector at one end of the LED lighting device and a female connector at the other end, and the LED lighting units are arranged in a line by being inserted into the female connector of the LED lighting unit that connects the male connector. Established.

  Moreover, the lighting fixture which connects fixture main bodies with a common end plate is proposed (refer patent document 2). In this prior art lighting fixture, a linear Fresnel lens provided with a plurality of linear prisms on the surface is installed on the fixture body so as to cover the opening of the fixture main body, and a suitable light irradiation direction and irradiation range. Can be obtained.

JP 2009-99363 A (pages 6-7, FIGS. 5-6) Japanese Patent Laid-Open No. 2008-218186 (page 9, FIG. 14)

  In the LED illumination device of Patent Document 1, since the connection part of the LED illumination unit is formed on the male connector and the female connector, when the LED illumination unit is lit in parallel with a line shape, the connection part that does not shine is easily noticeable. It has the disadvantage that the continuity of illumination is impaired.

  Moreover, the lighting fixture of patent document 2 has the fault that the loss of irradiated light generate | occur | produces by the light absorption etc. by a linear Fresnel lens, and has the fault that it becomes expensive by arrangement | positioning of a linear Fresnel lens.

  An object of the present invention is to provide an LED lighting apparatus having a simple configuration and uniform line illumination.

  The invention of the LED lighting apparatus according to claim 1 includes an LED module having a long substrate on which a light emitting diode is mounted on one surface side; a pair of long side plates, and the pair of side plates facing each other. A lower opening formed between the lower ends in the short direction of the side plates and a pair of end plates provided between both ends in the longitudinal direction of the pair of side plates and having side openings formed on the lower ends in the short direction; An instrument body in which the substrate of the LED module is disposed between the pair of side plates along the longitudinal direction of the pair of side plates so that the emitted light of the light emitting diode is emitted from the lower opening and the side openings; And a mounting means for attaching the instrument body to the chassis.

  In the present invention and the following inventions, each configuration is as follows unless otherwise specified.

  “Long” means that, for example, the size in the horizontal direction is large among the sizes (dimensions) in the vertical and horizontal directions. That is, the substrate is generally formed in a rectangular shape, but is not limited to this, and a substrate deformed from the rectangular shape is also allowed.

  When the LED module is thermally coupled to the heat sink, the heat generated in the light emitting diode is quickly radiated. Here, the said heat sink is so good that a thermal conductivity rate is large, for example, can be formed with aluminum (Al) or nickel (Ni).

  The pair of end plates may be provided with a side opening in at least one of them.

  The structure is, for example, a board suspended from the ceiling or supported by a wall or the like.

  The attachment means may be any means that fixes the instrument body to the chassis, such as screws, spring materials, and latch fittings.

  The light emitting diode is turned on by a lighting device. The lighting device may be disposed in the chassis, may be disposed in the instrument main body, or may be disposed separately from the chassis and the instrument main body, for example, in a construction.

  According to the present invention, since the side openings are formed in the pair of end plates, the side openings of the adjacent LED lighting fixtures are close to each other when the LED lighting fixtures are connected in a line to the construction. opposite. And since the board | substrate of an LED module is arrange | positioned along the longitudinal direction of a pair of side plate between a pair of side plates, a board | substrate is arrange | positioned to the both ends of an instrument main body. The radiated light emitted from the light emitting diodes located on both ends of the fixture body passes through the side openings and is emitted from the lower openings of the adjacent LED lighting fixtures to the external space.

  The invention of the LED lighting apparatus according to claim 2 is the invention of the LED lighting apparatus according to claim 1, wherein the pair of side plates of the apparatus main body has a pair of protrusions facing each other on the lower end side in the short direction. A translucent cover that is formed in the longitudinal direction and is locked to the projecting portion is attached to the lower opening, and the side openings of the pair of end plates are transparent to the side edge portions of the pair of side plates. An extending portion with which the end of the optical cover abuts is formed.

  According to the present invention, when the translucent cover tries to move in the longitudinal direction of the pair of side plates, the position of the translucent cover can be regulated by coming into contact with the extending portion of the end plate.

  According to the first aspect of the present invention, since the emitted light of the light emitting diode is emitted outward from the side opening of the fixture body, when the LED lighting fixtures are connected in a line shape, they are uniformed in a line shape. Illumination light can be emitted, and uneven illumination in a line can be prevented.

  According to the invention of claim 2, since the translucent cover locked to the pair of projecting portions of the instrument body is restricted from moving in the longitudinal direction of the pair of side plates by the extending portions of the end plates, There is no need to fix the light cover by the fixing member, and this can suppress an increase in the cost of the LED lighting apparatus.

The schematic longitudinal cross-sectional view of the LED lighting fixture which shows Example 1 of this invention. Similarly, the partially expanded schematic longitudinal cross-sectional view of the LED lighting fixture which shows the attachment state by an attachment means. Similarly, it shows an LED lighting apparatus, (a) is a schematic front view, (b) is a schematic bottom view. Similarly, one end plate is shown, (a) is a schematic rear view, (b) is a schematic side view. Similarly, the other end plate is shown, (a) is a schematic rear view, (b) is a schematic side view. Similarly, the schematic perspective view of a LED lighting fixture. Similarly, the partial schematic cross-sectional view of the LED lighting fixture arranged in a line. The schematic longitudinal cross-sectional view of the LED lighting fixture which shows Example 2 of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  In the present invention, the instrument body includes a pair of long side plates, a pair of end plates that face the pair of side plates to form a lower opening and a side opening, and the substrate of the LED module is a pair of side plates. It is arrange | positioned along the longitudinal direction of a pair of side plate between them. Thereby, the emitted light of the light emitting diode is emitted from the lower opening side to the external space, and is also emitted from the side opening side to the external space. Therefore, the LED lighting apparatus arranged in a line shape is emitted in a line shape without being interrupted, and is uniformed in a line shape.

  1 to 7 show Embodiment 1 of the present invention, FIG. 1 is a schematic longitudinal sectional view of an LED lighting apparatus, FIG. 2 is a partially enlarged schematic longitudinal sectional view of the LED lighting apparatus showing a mounting state by mounting means, 3 shows an LED lighting apparatus, (a) is a schematic front view, (b) is a schematic bottom view, FIG. 4 shows one end plate, (a) is a schematic rear view, and (b) is a schematic side view. FIG. 5 shows the other end plate, (a) is a schematic rear view, (b) is a schematic side view, FIG. 6 is a schematic perspective view of an LED lighting apparatus, and FIG. 7 is an LED illumination arranged in a line. It is a partial schematic cross-sectional view of the instrument.

  In FIG. 1, an LED lighting apparatus 1 includes an LED module 2, a heat sink 3 to which the LED module 2 is mounted, an apparatus body 4, a chassis 5, and a mounting bracket 6 as mounting means. The LED lighting fixture 1 is a direct attachment type lighting fixture attached directly to the ceiling 7 as a construction.

  The LED module 2 includes a light emitting diode 8 and a substrate 9. The light-emitting diode 8 is a surface-mounting type element having an LED chip, and is formed to emit visible light, for example, white light. The substrate 9 is made of, for example, an aluminum (Al) plate having a thickness of 1 mm, is formed in a rectangular shape, and extends in the longitudinal direction at the center in the lateral direction on the one surface 9a side through an insulating layer (not shown). A plurality of light emitting diodes 8 are linearly mounted at a predetermined interval. The light emitting diodes 8 are connected in series by a wiring pattern (not shown) formed on the substrate 9.

  The heat radiating plate 3 is made of a metal having a relatively high thermal conductivity, such as aluminum (Al), and has a rectangular bottom plate portion 10 formed in a planar shape and is extended from both ends in the short width direction of the bottom plate portion 10. It has a pair of inclined plate parts 11 and 11 to be provided. The other surface 9 b side of the substrate 9 is attached to the bottom plate portion 10. That is, the bottom plate portion 10 is attached to the substrate 9 with screws (not shown) so that the other surface 9b side of the substrate 9 is in close contact. Moreover, as shown in FIG.3 (b) or FIG. 6, the baseplate part 10 has attached for example four LED modules 2 (board | substrate 9) linearly along the rectangular longitudinal direction. That is, a plurality of LED modules 2 are attached to the heat sink 3.

  As shown in FIG. 1, the pair of inclined plate portions 11 and 11 are formed to have inclined surfaces that gradually expand from each other across the substrate 9 of the LED module 2 from both ends of the bottom plate portion 10 in the short width direction. . And inner surface 11a, 11a of a pair of inclined board parts 11 and 11 is formed in the reflective surface, for example by white coating.

  The instrument body 4 includes a pair of long side plates 12 and 12 and a pair of end plates 13A and 13B provided on both ends 12g and 12h (shown in FIG. 3) in the longitudinal direction of the pair of side plates 12 and 12, respectively. It is comprised. The pair of side plates 12 and 12 and the pair of end plates 13A and 13B are made of, for example, steel plates.

  The pair of side plates 12 and 12 are formed on a pair of side plate upper portions 12a and 12a, a pair of side plate lower portions 12b and 12b, and a pair of side plate upper end portions 12c and 12c. The pair of side plate upper portions 12a and 12a are formed on inclined surfaces that gradually expand from the long short-side intermediate portions 12d and 12d of the pair of side plates 12 and 12 toward the upper ends 12e and 12e in the short-side direction. Has been. The pair of side plate upper portions 12a and 12a are formed with locking holes 15 and 15 on the long longitudinal ends 12g and 12h (shown in FIG. 3) of the pair of side plates 12 and 12, respectively. Yes. The locking holes 15 and 15 are each formed in a rectangular shape, and are provided so as to form a pair at positions where the pair of side plates 12 and 12 face each other.

  The pair of side plate lower portions 12b and 12b are formed on inclined surfaces that gradually expand from the long short-side intermediate portions 12d and 12d of the pair of side plates 12 and 12 toward the lower ends 12f and 12f in the short-side direction. Has been. The pair of side plate lower portions 12b and 12b are formed at substantially the same inclination angle such that the inclined surfaces form a gap between the inclined surfaces of the pair of inclined plate portions 11 and 11 of the heat radiating plate 3 and approach or approach each other. Has been.

  The pair of side plate upper end portions 12c, 12c are connected to the pair of side plate upper portions 12a, 12a, respectively, and the upper ends 12e, 12e in the long lateral direction of the pair of side plates 12, 12 are opposed to the intermediate portions 12d, 12d. It is formed on a vertical surface that stands up.

  And the lower end 12f, 12f side of a pair of side board lower part 12b, 12b is formed in the protrusion parts 14 and 14 which face each other over the elongate longitudinal direction of a pair of side board 12,12. The protrusions 14 and 14 protrude 5 to 15 mm from the inner surfaces of the lower ends 12f and 12f of the pair of side plate lower portions 12b and 12b.

  Of the pair of end plates 13A and 13B, the end plate 13A is formed with a flat plate portion 16 having an outer shape along the inner surface of the pair of side plates 12 and 12, as shown in FIG. Is provided on the inner surface of one end 12g in the longitudinal direction.

  Further, the end plates 13A are provided with reinforcing pieces 19a to 19d protruding from the flat plate portion 16 at the side ends 13a and 13a, respectively, orthogonal to the plane of the flat plate portion 16 and in close contact with or close to the inner surfaces of the pair of side plates 12 and 12. Is provided. Further, a reinforcing piece 19e is formed at the upper end 13b, and a reinforcing piece 19f is formed at the lower end 13c in the same manner as described above. These reinforcing pieces 19a to 19f prevent deformation of the thin end plate 13A.

  The pair of reinforcing pieces 19a, 19a and the pair of reinforcing pieces 19d, 19d are attachment pieces for attaching the pair of side plates 12, 12. That is, as shown in FIG. 1, the pair of reinforcing pieces 19 a and 19 a are formed on the inner surfaces of the pair of side plate upper ends 12 c and 12 c of the pair of side plates 12 and 12, and the side plate upper end portion 12 c and the folded portion 12 ca ( 2). Further, the pair of reinforcing pieces 19 d and 19 d are attached to the inner surfaces of the pair of side plate lower portions 12 b and 12 b of the pair of side plates 12 and 12 by rivets 20. The pair of side plate lower portions 12b and 12b are formed with holes (not shown) through which the rivets 20 are inserted, and the pair of reinforcing pieces 19d and 19d are provided with holes 21 (shown in FIG. 4B) through which the rivets 20 are inserted. Is formed.

  As shown in FIG. 5, the end plate 13B is formed in the same manner as the end plate 13A, but a notch 13D that forms the side opening 18B of the instrument body 4 is formed on the lower end 13c side. A pair of extending portions 19g and 19g located at the side edge portions of the pair of side plates 12 and 12 are formed by the cutout portion 13D. Further, a reinforcing piece 19f2 corresponding to the reinforcing piece 19f of the end plate 13A is formed in the cutout portion 13D. The end plate 13B is provided on the inner surface of the other end 12g in the longitudinal direction of the pair of side plates 12 and 12.

  And as for a pair of end plate 13A, 13B, the outer surface of the flat plate part 16 and 16 protrudes somewhat 0.5-1.0 mm, for example from the end surface of both ends 12g and 12h of the longitudinal direction of a pair of side plates 12 and 12, respectively. Thus, a pair of side plates 12 and 12 are attached. Thus, the pair of end plates 13A, 13B closes or substantially closes the pair of side plates 12, 12 between the one ends 12g, 12g or the other ends 12h, 12h in the longitudinal direction. Then, due to the arrangement of the pair of end plates 13A and 13B, the pair of side plates 12 and 12 face each other at a predetermined interval, and the upper opening 17 is formed between the upper ends 12e and 12e of the pair of side plates 12 and 12 in the short direction. Similarly, the substantially cylindrical frame is configured so that a lower opening 18A is provided between the lower ends 12f and 12f (projections 14 and 14), and a side opening 18B is provided on the end plate 13B. Thus, an upper opening 17, a lower opening 18A, and a side opening 18B are formed in the instrument body 4.

  When the pair of end plates 13A and 13B are attached to the pair of side plates 12 and 12, and the instrument body 4 is assembled, the pair of inclined plate portions 11 and 11 of the heat radiating plate 3 and the pair of side plates of the pair of side plates 12 and 12 are assembled. The lower portions 12b and 12b approach each other, and the distance L1 between the inner surfaces of the intermediate portions 12d and 12d of the pair of side plates 12 and 12 is smaller than the short width of the bottom plate portion 10 of the heat radiating plate 3. The sizes of the flat plate portions 16 are set so as to satisfy these dimensional conditions.

  The heat radiating plate 3 is, for example, inserted between the pair of side plate lower portions 11 and 11 from the other end side 12h and 12h after attaching one end plate 13A to one end side 12g and 12g in the longitudinal direction of the pair of side plates 12 and 12. To be accommodated. At this time, the translucent cover 22 is inserted between the pair of inclined plate portions 11, 11 of the heat radiating plate 3 and the pair of projecting portions 14, 14 of the instrument body 4. The other side plate 13B is attached to the other end side 12h, 12h in the longitudinal direction of the pair of side plates 12, 12.

  The translucent cover 22 is made of acrylic resin, for example, and is formed in a rectangular shape. The translucent cover 22 is locked to the protrusions 14 and 14, thereby substantially closing the lower opening 18 </ b> A of the instrument body 4.

  The heat radiating plate 3 and the translucent cover 22 are restricted from moving in the longitudinal direction of the pair of side plates 12 and 12 by the pair of end plates 13A and 13B. That is, when the heat radiating plate 3 and the translucent cover 22 are about to move in the longitudinal direction of the pair of side plates 12 and 12, their end portions become flat plate portions 16 or extending portions 19g and 19g of the end plates 13A and 13B. The position is regulated by contact.

  Further, the movement of the radiator plate 3 and the translucent cover 22 to the upper opening 17 side and the lower opening 18A side of the instrument main body 4 is restricted. That is, if the distance L1 between the inner surfaces of the intermediate portions 12d and 12d of the pair of side plates 12 and 12 is smaller than the short width of the bottom plate portion 10 of the heat radiating plate 3 when moving toward the upper opening 17 side, Before the portion 10 reaches the inner surfaces of the intermediate portions 12d and 12d, they abut against the inner surfaces of the pair of side plate lower portions 12b and 12b. Further, the movement toward the lower opening 18 </ b> A is prevented by the translucent cover 22 coming into contact with the pair of protrusions 14, 14.

  Thus, the heat radiating plate 3 and the translucent cover 22 are accommodated between the pair of side plate lower portions 12b and 12b of the pair of side plates 12 and 12 without being fixed by fixing means such as screws. Thereby, the bottom plate part 10 of the heat radiating plate 3 is exposed to the upper opening 17 of the instrument body 4. Further, the substrate 9 of the LED module 2 is disposed along the longitudinal direction of the pair of side plates 12, 12 between the pair of side plate lower portions 12 b, 12 b of the pair of side plates 12, 12. Therefore, the emitted light of the light emitting diode 8 is emitted from the lower opening 18A to the external space over the longitudinal direction of the pair of side plates 12 and 12.

  The chassis 5 is made of, for example, a single steel plate, and the rectangular flat portion 23 and both ends in the short direction of the flat portion 23 are bent at right angles to the flat portion 23 over the longitudinal direction of the flat portion 23. A pair of upright pieces 24 and 24 are formed. The pair of upright pieces 24 and 24 are formed to reinforce the chassis 5. A plurality of protrusions 25 are formed on the back surface 23 b of the flat surface portion 23. The protrusion 25 forms a gap between the ceiling surface 7a and the chassis 5, so that screws or the like attached to the chassis 5 do not interfere with the ceiling surface 7a.

  Further, the chassis 5 has a short dimension smaller than a short width dimension of the upper opening 17 of the instrument body 4 and a longitudinal dimension smaller than a longitudinal dimension of the upper opening 17 of the instrument body 4. Is formed. That is, the size of the chassis 5 is smaller than the upper opening 17 of the instrument body 4.

  As for the chassis 5, the plane part 23 is attached to the ceiling surface 7a of the ceiling 7 as a construction thing via the protrusion 25 with the screw | thread which is not shown in figure. A lighting device 26 for lighting the light emitting diode 8 is disposed on the flat portion 23. The lighting device 26 is attached to the front surface 23a of the flat portion 23 with a screw (not shown). Further, as shown in FIG. 3A, a power supply terminal 27 is attached to the front surface 23a of the flat portion 23 by screws (not shown).

  The lighting device 26 draws out an input line (not shown), and this input line is connected to the power supply terminal 27. The power supply terminal 27 is connected to a power supply line introduced from the back side of the ceiling 7 through a hole (not shown) formed in the flat portion 23 and the ceiling 7. The input line and the power line are electrically connected at the power terminal 27.

  Further, as shown in FIG. 1, the lighting device 26 pulls out an output line 28, and a male connector 29 is attached to the tip of the output line 28. A relay terminal 30 is disposed on the other surface 9b of the substrate 9 of each LED module 2. A hole (not shown) through which the relay terminal 30 is inserted is formed in the bottom plate portion 10 of the heat radiating plate 3. The relay terminal 30 is electrically connected to a wiring pattern formed on the substrate 9. The relay terminal 30 is connected to a lead wire 32 having a female connector 31 attached to the tip.

  By connecting the male connector 29 of the output line 28 to the female connector 31 of the lead wire 32, the lighting device 26 is connected between both ends of the light emitting diodes 8 connected in series on the substrate 9 of each LED module 2. That is, the light emitting diode 8 is connected in series and parallel to the lighting device 26.

  The lighting device 26 includes a known circuit that converts an input AC voltage into a DC voltage and supplies a constant current to the light emitting diode 8. The light emitting diode 8 is turned on when a constant current supplied from the lighting device 26 flows, and emits visible light such as white light.

  Mounting brackets 6 as mounting means are used to mount the instrument body 4 to the chassis 5, and are respectively disposed on both ends 5 a and 5 b in the longitudinal direction of the chassis 5 as shown in FIG. 3. And the arrangement | positioning position in the chassis 5 is provided corresponding to the locking holes 15 and 15 formed in a pair of side plate upper part 12a, 12a of a pair of side plate 12 and 12 of the instrument main body 4. FIG.

  The mounting bracket 6 is formed by bending, for example, a single metal plate having a relatively small width of 5 to 20 mm, for example, a steel plate. Moreover, it forms using the metal plate with a thickness of 1-2 mm so that it may have springiness, for example.

  As shown in FIG. 1, the mounting bracket 6 includes a fixed plate 32, a pair of swing plates 33, 33 connected to both ends of the fixed plate 32, and a pair connected to the pair of swing plates 33, 33. Are formed on the engagement plates 34, 34. The fixing plate 32 has a planar shape and is attached to the front surface 23 a of the planar portion 23 of the chassis 5 by a plurality of screws 35 and nuts 36. The pair of oscillating plates 33 and 33 are formed so as to gradually expand from each other as they move away from the fixed plate 32.

  As shown in FIG. 2, the pair of engagement plates 34, 34 are substantially parallel to the fixed plate 32, respectively, and protrude upwardly from the engagement portion 34 a that protrudes to the opposite side away from each other. It is formed in a folded portion 34b that is curled and folded in a direction approaching each other. The folded portion 34b has a free end at the distal end and has a spring property that allows the gap with the engaging portion 34a to expand and contract. In addition, the pair of swing plates 33 and 33 has a spring property that swings in a direction of connecting the pair of swing plates 33 and 33 with both ends of the fixed plate 32 serving as fulcrums, approaching each other, and elastically recovers. Yes.

  As shown in FIG. 1, the pair of engaging plates 34, 34 are paired with the pair of swing plates 33 in the locking holes 15, 15 formed in the pair of side plate upper portions 12 a, 12 a of the pair of side plates 12, 12. , 33 are respectively inserted by elastic return force. When the pair of engaging plates 34, 34 are inserted into the locking holes 15, 15, the engaging portions 34a, 34a and the folded portions 34b, 34b are outward from the outer surfaces of the pair of side plate upper portions 12a, 12a. It protrudes and is clamped by the edge part or inner wall surface of the locking holes 15 and 15. Then, due to the reaction, the engaging portion 34 a and the turned-back portion 34 b abut against the edge or inner wall surface of the locking hole 15, so that the mounting bracket 6 supports the instrument body 4 and attaches to the chassis 5.

  Then, in a state where the mounting bracket 6 is mounting the instrument body 4 to the chassis 5, the upper end edges of the pair of side plate upper ends 12c, 12c of the pair of side plates 12, 12 and the upper end 13b of the pair of end plates 13A, 13B. , 13b, and the entire length of the pair of oscillating plates 33, 33 is set such that a gap 37 is formed between the upper end edge of each and the ceiling surface 7a. The gap 37 allows the upper opening 17 and the inside of the instrument body 4 to communicate with the external space of the instrument body 4.

  When the instrument body 4 is attached to the chassis 5, the pair of engagement plates 34 and 34 are brought into contact with the inner surfaces of the pair of side plate upper ends 12 c and 12 c of the pair of side plates 12 and 12, respectively. At this time, the male connector 29 and the female connector 31 are connected in advance. Then, the pair of engagement plates 34, 34 are pressed so that the pair of swing plates 33, 33 and the pair of engagement plates 34, 34 approach each other. For example, the pair of engagement plates 34 and 34 are grasped by hand, and a force is applied to the pair of engagement plates 34 and 34. When the pair of engaging plates 34 and 34 come into contact with the inner surfaces of the pair of side plate upper ends 12c and 12c, the pair of swing plates 33 and 33 connect the pair of swing plates 33 and 33 with the fixed plate 32 as a fulcrum. Swing to approach each other in the direction.

  Then, as the instrument body 4 is moved so as to approach the chassis 5, the pair of engagement plates 34, 34 move while sliding the instrument body 4 toward the lower opening 18 </ b> A of the instrument body 4, and the pair of side plates The inner surfaces of the upper end portions 12c and 12c are in contact with the inner surfaces of the pair of inclined upper portions 12a and 12a. Then, when reaching the locking holes 15, 15 formed in the pair of inclined upper portions 12 a, 12 a, the pair of engaging plates 34, 34 are engaged with the locking holes 15, 34 by the elastic return force of the pair of swing plates 33, 33. 15 is inserted. In this way, the instrument body 4 is attached to the chassis 5 by the attachment fitting 6.

  Conversely, when removing the instrument body 4 from the chassis 5, while supporting the instrument body 4, the pair of engaging plates 34, 34 are pushed into the pair of inclined upper portions 12 a, 12 a and brought into contact with the inner surface. When the instrument body 4 is moved away from the chassis 5, the pair of engagement plates 34 and 34 are eventually released from the upper opening 17 of the instrument body 4. Thereby, the instrument main body 4 is removed from the chassis 5.

  The LED lighting device 1 is formed as described above. And the LED lighting fixture 1 is connected in a line by the ceiling surface 7a so that the end plate 13A may be located in the both ends of a line shape. Here, the LED lighting apparatus 1 may be configured such that the end plates 13B are provided at both ends 12g and 12h in the longitudinal direction of the pair of side plates 12 and 12, and the side openings 18B and 18B are formed at both ends 12g and 12h. It ’s good. The LED lighting fixture 1 in which the side openings 18B and 18B are provided at both ends 12g and 12h is provided so as to be positioned in the middle of the plurality of LED lighting fixtures 1 connected in a line to the ceiling surface 7a.

  Then, as shown in FIG. 7, each LED is arranged such that the interval b1 between the light emitting diodes 8 and 8 of the adjacent LED lighting fixtures 1 and 1 is substantially equal to the mounting interval a1 between the light emitting diodes 8 and 8 of the LED module 2. The luminaire 1 is connected to the ceiling surface 7a in a line. Thus, the intervals a1 of the light emitting diodes 8 are substantially uniform in a line shape.

  Next, the operation of the first embodiment of the present invention will be described.

  When AC power is supplied to the lighting device 26, the lighting device 26 operates, a constant current is supplied to each LED module 2, and the light emitting diode 8 is lit. Visible light such as white light is emitted from the light emitting diode 8. This emitted light is emitted from the lower opening 18A of the instrument body 4 to the external space.

  As shown in FIG. 7, when the plurality of LED lighting apparatuses 1 are connected in a line to the ceiling surface 7 a so that the side openings 18 </ b> B communicate with each other, a pair of substrates 9 of the LED module 2 is paired. Since the pair of side plates 12 and 12 are disposed along the longitudinal direction of the pair of side plates 12 and 12, the emitted light emitted from the light emitting diodes 8 located on both ends 12g and 12h of the pair of side plates 12 and 12 is provided. Passes through the side openings 18B, 18B communicating with each other and is emitted from the lower opening 18A of the adjacent LED lighting apparatus 1 to the external space.

  The plurality of LED lighting fixtures 1 are arranged in a line so that the interval b1 between the light emitting diodes 8 and 8 of the adjacent LED lighting fixtures 1 and 1 is substantially equal to the mounting interval a1 of the light emitting diodes 8 and 8 of the LED module 2. Therefore, the emitted light of the light emitting diode 8 is not interrupted and is made uniform in a line shape.

  Thus, since the emitted light of the light-emitting diode 8 passes through the side opening 18B of the fixture body 4 and is emitted to the external space, the LED illumination fixture 1 connected in a line form on the top surface 7a has a linear shape. Uniform illumination light can be emitted, and uneven illumination in a line shape can be prevented.

  And since the side opening 18B of the instrument main body 4 can be formed with a simple structure by the end plate 18B, the LED lighting apparatus 1 can be formed at low cost.

  Further, the extension portions 19g, 19g of the end plate 13B are between the other end plate 13A or the extension portions 19g, 19g of the other end plate 13B, and the pair of side plates 12, 12 of the translucent cover 22 are connected. Since the movement in the longitudinal direction is restricted, there is no need to fix the translucent cover 22 with a fixing member or the like, thereby suppressing an increase in cost of the LED lighting device 1.

  FIG. 8 is a schematic vertical cross-sectional view of an LED lighting apparatus showing Example 2 of the present invention. The same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.

  The LED lighting fixture 38 shown in FIG. 8 is the LED lighting fixture 1 shown in FIG. 1 in which the pair of side plate lower portions 12b and 12b having inclined surfaces are formed on the pair of side plate lower portions 12bA and 12bA having vertical surfaces. . And 3 A of heat sinks are formed in the plane.

  Attachment members 39 and 39 having a U-shaped cross section mounted on the pair of protrusions 14 and 14 are attached to the pair of side plate lower portions 12bA and 12bA by rivets 20 and 20, respectively. The heat radiating plate 3 </ b> A is attached to the attachment members 39, 39 by screws 40 and nuts 41. In the attachment members 39, 39, small holes 42 are formed at predetermined intervals in the longitudinal direction for ventilating the external space and the internal space of the instrument body 4A.

  A space between the pair of protrusions 14 is open. The light emitting diode 8 side of the LED module 2 is covered with an insulating and translucent resin (not shown).

  Similarly to the LED lighting apparatus 1 shown in FIG. 1, the LED lighting apparatus 38 can emit linear and uniform illumination light from the LED lighting apparatus 1 connected in a line on the top surface 7 a. Uneven lighting in a line shape can be prevented.

  INDUSTRIAL APPLICABILITY The present invention can be used for a lighting fixture that is directly attached to a construction such as a ceiling.

  DESCRIPTION OF SYMBOLS 1,38 ... LED lighting fixture, 2 ... LED module, 3, 3A ... Heat sink, 4, 4A ... Appliance main body, 5 ... Chassis, 6 ... Mounting bracket as attachment means, 8 ... Light emitting diode, 9 ... Substrate, 12 , 12 ... a pair of side plates, 13A, 13B ... a pair of end plates, 17 ... an upper opening, 18A ... a lower opening, 18B ... a side opening

Claims (2)

An LED module having an elongated substrate on which a light emitting diode is mounted on one side;
A pair of long side plates, a pair of side plates facing each other, a lower opening formed between the lower ends in the short direction of the pair of side plates, and a lower end side in the short direction provided between both ends of the pair of side plates in the longitudinal direction A pair of end plates formed with side openings, and the LED module substrate is disposed between the pair of side plates so that the emitted light of the light emitting diode is emitted from the lower opening and the side openings. An instrument body disposed along a direction;
A chassis attached to the construction;
Mounting means for attaching the instrument body to the chassis;
LED lighting fixture characterized by comprising.   A pair of side plates of the instrument body are formed with a pair of projecting portions facing each other on the lower end side in the lateral direction over the longitudinal direction, and a translucent cover that is locked to the projecting portions in the lower opening The side opening of the pair of end plates is formed with an extension portion where the end portions of the translucent cover abut on the side edge portions of the pair of side plates. LED lighting fixture of description.

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