JP5472815B2 - lighting equipment - Google Patents

Description

  Embodiments described herein relate generally to a lighting fixture that uses a solid light emitting element such as a light emitting diode as a light source.

  In recent years, lighting fixtures that employ light-emitting diodes, which are solid-state light-emitting elements that have a long lifetime and low power consumption, as commercial light sources have been commercialized instead of filament bulbs and fluorescent lamps. The light-emitting diodes used in these lighting fixtures may feel unpleasant glare because of their high brightness compared to fluorescent lamps, etc., and control the light distribution by the louver so as not to give glare to the user Is suppressed.

JP 2008-117538 A

  However, as lighting fixtures used in stores, offices, etc., large luminaires having a length of more than 1000 mm are used, so that louvers are inevitably thin and long. For this reason, a problem in strength occurs, for example, bending occurs along the longitudinal direction. At the same time, these louvers are generally molded from a synthetic resin, necessitating a thin and long large mold, which is a cause of cost increase.

  The present invention has been made in view of the above problems, and intends to provide a lighting apparatus using a solid light-emitting element capable of suppressing glare as a light source by using a louver having high strength and cost. Is.

  The invention of the lighting fixture in the embodiment of the present invention includes: a fixture main body having a rectangular shape; a mounting portion formed with a concave groove along a longitudinal direction of the fixture main body; and a light emitting portion disposed along the concave groove of the mounting portion. And a frame, a fixed piece projecting from one end of the frame, a projecting form projecting from the other end of the frame, engaging the mounting portion, and a fixed piece having the same shape as the fixed piece A plurality of louvers each having an engagement piece configured to be locked together with the frame portion, the adjacent fixed piece and the engagement piece being locked to each other and attached to the concave groove of the attachment portion; It is characterized by having.

  According to the present embodiment, it is possible to provide a luminaire using a solid light-emitting element capable of suppressing glare as a light source by using a louver that has high strength and is advantageous in terms of cost.

The lighting fixture which concerns on 1st Embodiment is shown, (a) is a perspective view which shows the state which removed the end plate, (b) is a perspective view which shows the louver of a lighting fixture. The lighting fixture is similarly shown, (a) is a perspective view seen from below the state installed on the ceiling, (b) is a perspective view seen from the back side. The front view which similarly shows a lighting fixture by removing a cover member and notching a part of louver. The perspective view which similarly decomposes | disassembles a lighting fixture and cuts out a part of fixture main body, a light source body, and a side plate. Similarly, it shows a state where the lighting fixture is installed on the ceiling, (a) is a cross-sectional view of the installation state cut along the line aa in FIG. 3, (b) is a cross-sectional view showing a state where the light source body is incorporated in the fixture body . Similarly, a louver of a lighting fixture is shown, (a) is a side view, (b) is a front view, (c) is a cross-sectional view taken along line cc of FIG. (B), and (d) is a book (b). Sectional drawing cut | disconnected along the dd line | wire and notching a part. It is a figure which shows the state which similarly attached several louvers of the lighting fixture to the attaching part, (a) is a side view which shows a cross section of an attaching part, (b) is a bottom view which removes an attaching part. The lighting fixture is shown similarly, (a) is a partial side view seen from the direction of arrow a in FIG. 2 (b), and (b) is a cross-sectional view taken along the line bb in FIG. (C) is sectional drawing which follows the cc line | wire of this (a) figure. The front view which shows the state which discharges | emits a foreign material from a lighting fixture similarly. Similarly, the 1st modification of a lighting fixture is shown, (a) is the perspective view which looked at the state installed in the ceiling from the downward | lower direction, (b) is the perspective view seen from the back side. Sectional drawing equivalent to FIG. 5 (a) which shows the 1st modification of a lighting fixture similarly, and shows the state which installed the lighting fixture in the ceiling.

  Hereinafter, it demonstrates according to a figure about embodiment of a lighting fixture.

First embodiment

  The lighting fixture 10 of this embodiment constitutes a direct-attached thin base light with a louver. The fixture main body 11 has a rectangular shape, and the mounting portion 12 has a concave groove 12b along the longitudinal direction of the fixture main body. The light emitting portion 13 and the frame portion 14a disposed along the concave groove of the attachment portion, the fixed piece 14e formed to protrude on one end side of the frame portion, and the protrusion portion formed on the other end side of the frame portion, the attachment portion And an engaging piece 14f configured to be able to lock the fixed piece having the same shape as the fixed piece together with the frame portion, and the adjacent fixed piece and the engaging piece are locked to each other. It comprises a plurality of louvers 14 attached to the concave groove of the attachment portion.

  The instrument body 11 is formed by pressing a steel plate made of a thin plate, has a substantially U-shape with a shallow cross-sectional shape, has a bottom surface portion 11a (an upper surface portion when the device is installed on the ceiling), and both end portions. A case body having a substantially rectangular shape having an opening 11b is formed. As shown in FIG. 2, a dharma hole 11 a 1 for installing an instrument is formed in the bottom surface portion 11 a, and when the instrument is installed on the ceiling or the like, the back surface 11 a 2 serves as an installation surface.

  The instrument main body 11 bends the edge part of one side plate 11c along the longitudinal direction of a case body in the shape of a bowl, and integrally forms the pivot part 11c1. Further, two fixing holes 11d1 for inserting the mounting screws S1 are formed in both end portions of the other side plate 11d along the longitudinal direction, one in total, and facing the back side of the fixing holes, respectively, A fixing bracket 11d2 for screwing S1 is fixed (FIG. 5A). Moreover, the both ends of the instrument main body 11 which has the opening part 11b are integrally formed with the closing part 11b1 by extending the bottom face part 11a (FIG. 8A). A closing part is comprised so that the opening part 11b may be block | closed with the end plates 17a and 17b mentioned later.

  The attachment portion 12 is configured by pressing a white coated steel plate made of a thin plate as in the case of the instrument main body 11 in the present embodiment, in order to enhance heat dissipation. The mounting portion 12 is positioned on a substantially central line aa (FIG. 3) in the longitudinal direction and integrally formed with a concave groove 12a. The pair of concave portions are formed in parallel with both sides of the concave groove and recessed in opposite directions. The grooves 12b and 12b are integrally formed, have a rectangular long shape with both ends in the short direction open, and are configured to be an attachment portion of a size that can be accommodated in the instrument body 11.

  When the luminaire is assembled, at least a part in the height direction of the case 19a of the lighting device 19, which will be described later, that is, the chevron at the tip overlaps the concave groove 12a formed in the longitudinal direction of the mounting portion 12. (FIG. 5A). Further, an inclined surface 12b1 made of a surface inclined so as to open outward is formed on the inner surfaces of the concave grooves 12b, 12b on both sides. Further, both side edges in the longitudinal direction of the attachment portion 12 are bent in the vertical direction to integrally form the support piece portion 12c.

  As shown in FIG. 5A, the light emitting unit 13 includes a solid light emitting element 13a and a circuit board 13b on which the solid light emitting element is mounted. In the present embodiment, the solid-state light emitting element is composed of a light emitting diode (hereinafter referred to as “LED”), and includes a plurality of SMD type LEDs 13a. The LED may be a so-called COB type that emits white light (including daylight white, daylight color, and light bulb color) with a plurality of LED chips and a phosphor excited by the LED chips. The circuit board 13b is made of a metal having good thermal conductivity, which is a flat, thin and long rectangular aluminum in this embodiment, and its surface (the lower surface in FIG. 5 (a)) via an electrical insulating layer. A wiring pattern made of copper foil is formed, and a light emitting section 13 is formed which is made up of a light emitting module in which a plurality of LEDs 13a are arranged in a substantially straight line at substantially equal intervals on the wiring pattern (see FIG. 3). The light emitting module is divided into four strip-shaped modules so that the light emitting modules can be equally divided with respect to the mounting portion 12, and each of the concave grooves 12b and 12b on both sides forms a total of eight modules. Divided and provided.

  As described above, the light-emitting portion 13 having the LED 13a mounted on the circuit board 13b is formed on the bottom of each concave groove 12b, 12b formed on the mounting portion 12 on the substantially center line bb in the longitudinal direction (FIG. 3). In order to provide electrical insulation and to be in close contact with each other, it is arranged in one row and connected in two rows on both sides. Further, it is fixed in close contact with the bottoms of the grooves 12b and 12b using screws or the like via an electrical insulating sheet (not shown) made of silicone resin or the like as necessary.

  As shown in FIGS. 1B, 6 and 7, the louver 14 is a synthetic resin having good weather resistance, heat resistance, and electrical insulation. In this embodiment, the louver 14 is an elongated rectangular white PBT. 14a and the light shielding plate 14b are integrally formed. A plurality of light shielding plates are provided at predetermined intervals in the longitudinal direction corresponding to the plurality of LEDs 13a of the light emitting unit 13, and the LEDs 13a of the light emitting unit 13 face outward between the adjacent light shielding plates 14b. Thus, the light exit port 14c is formed. Both side portions of the light emitting port in the short direction are integrally formed with reflecting surfaces 14d that expand outward. A plurality of louvers 14 configured as described above are prepared, and in the present embodiment, a plurality of LEDs 13a of the light emitting section 13 arranged in a straight line along the concave grooves 12b and 12b of the mounting section 12 are emitted. It arrange | positions facing so that it may face outside from the opening | mouth 14c. In addition, the louver 14 was used in a total of eight louvers with four grooves and the concave grooves 12b and 12b on both sides so that a large number of LEDs 13a could be arranged in an equally divided state.

  Each louver 14 integrally protrudes from the bottom surface at one end side (left end in the figure) of the frame portion 14a to form a fixed piece 14e. A fixing hole 14e1 through which the fixing screw S2 is inserted is formed in the protruding portion of the fixing piece. Further, an engaging piece 14f is formed on the other end side (right end in the figure) by projecting integrally from the bottom surface. The engaging piece is composed of two engaging pieces projecting in a hook shape, and the dimension between the two locking pieces is the width dimension in which the projecting fixed piece 14e is fitted inside. To form.

  On the other hand, an engagement hole 12f into which the engagement piece 14f of the louver 14 is inserted and engaged is formed on the inner bottom surface of the concave groove 12b of the mounting portion 12 on which the louver 14 is supported (FIG. 7A). The engagement holes are formed at equal intervals along the longitudinal direction of the concave groove with intervals at which the engagement pieces 14f of the four louvers 14 can be engaged. In the present embodiment, four engagement holes 12f are formed by four along the longitudinal direction of the concave groove on one side and a total of eight concave holes 12b and 12b on both sides. The engagement holes are constituted by two rectangular holes arranged in parallel so that the two engagement pieces 14f are individually engaged with each other.

  The plurality of divided louvers 14 configured as described above are connected to and supported by the inner bottom surfaces of the concave grooves 12b and 12b of the mounting portion 12 as follows. That is, as shown in FIG. 7, which is a state where the four louvers 14 are attached to the attachment portion 12, first, the engaging piece 14f-1 of the leading louver 14-1 (the rightmost louver in the drawing) is recessed. The first engagement hole 12f-1 of 12b is inserted and engaged.

  Next, the fixing piece 14e-1 of the leading louver 14-1 is inserted between the two engaging pieces 14f-2 of the second louver 14-2. In the inserted state, the two engagement pieces 14f-2 are inserted into the second engagement holes 12f-2 and engaged.

  Similarly, the third and fourth louvers are sequentially engaged with the respective engagement holes while being connected. The last louver 14-4 is fixed by inserting the tapping screw S2 into the fixing hole 14e1 provided in the fixing piece 14e-4 and screwing it into the screw hole on the bottom surface of the concave groove 12b.

  As a result, each louver is engaged with the engagement piece 14f having a key shape by a single screw and the rectangular engagement hole 12f and fixed without dropping, and the four divided louvers are connected. Are attached to the attachment portion 12. Similarly, four louvers 14 are arranged in the other concave groove 12 b, and a total of eight louvers are attached to the attachment portion 12. At this time, the louver 14 is divided into a plurality of short parts and is not thin and long, so that the four louvers are difficult to bend along the longitudinal direction. In contrast to the above, each louver 14 can be easily removed by removing one tapping screw S2 and pulling out the engagement piece 14f from the engagement hole 12f.

  The light shielding angle of each louver 14 installed as described above is set as follows, that is, as shown in FIG. 6D, the light shielding angle θ1 in the longitudinal direction is about 60 ° by the light shielding plate 14b. As shown in FIG. 6C, the light shielding angle θ2 in the short direction perpendicular to the longitudinal direction is wider than that of the light shielding plate 14b by the inclined reflecting surface 14d, which is about 30 ° in this embodiment. The light distribution is controlled at the light shielding angle, and the light emitted from the light emitting unit 13 has a light distribution characteristic such that the light is emitted mainly in the short direction perpendicular to the longitudinal direction. Suppressing feeling. Note that the light blocking angle θ1 in the longitudinal direction is 45 to 75 °, preferably 50 to 70 °, from the relationship between glare suppression and light distribution characteristics, particularly room brightness. The light blocking angle θ2 in the short direction is 15 to 45 °, preferably 20 to 40 °.

  And the cover member 15 is provided facing the concave grooves 12b and 12b of the attachment part 12 so that the louver 14 and the light emission part 13 may be covered. The cover member is made of a translucent milky white acrylic resin that is frosted to further prevent glare. The cover member has a rectangular, long, thin plate shape and has substantially the same outer shape and dimensions as the mounting portion 12. Configure as follows. The cover member 15 and the mounting portion 12 provided with the louver 14 and the light emitting portion 13 are integrated as follows to constitute the light source body A. That is, as shown in FIGS. 4 and 8, 16 a and 16 b are long sash-like side plates along the both side edges in the longitudinal direction of the mounting part 12, and one pair of two sheets corresponding to the both side edges of the mounting part. Is provided. The two side plates 16a and 16b are metal having good thermal conductivity in order to enhance heat dissipation, and in this embodiment, a white coated steel plate made of a thin plate is pressed as in the case of the instrument body 11 and the mounting portion 12. It is constituted by doing. One side plate 16a is formed with a U-shaped cross-sectional shape on the inner surface, and an end portion of the U-shape is bent inwardly to form a pivot shaft 16a1. Then, by forming this shaft portion, a fixing hole 16a3 consisting of a screw hole for attaching an end plate, which will be described later, is formed in the step portion 16a2 formed on the outer surface. One fixing hole is formed at each end of the side plate 16a.

  Similarly, the other side plate 16b has a cross-sectional shape of its inner surface formed in a “U” shape, and a step portion 16b2 is formed on the outer surface. And the fixing hole 16b3 which consists of the screw hole for the end plate attachment mentioned later is formed in the bottom face part of a step part. One fixing hole is formed at each end of the side plate. Further, a support piece portion 16b1 is formed integrally with the side surface portion of the step portion 16b2 raised in the vertical direction. Insertion holes 16d1 corresponding to the two fixing holes 11d1 formed in the other side plate 11d of the instrument main body 11 are formed at both ends of the support piece.

  Support piece portions 12c and 12c formed on both side edges in the longitudinal direction of the mounting portion 12 are inserted into the U-shaped inner surfaces of the two side plates 16a and 16b configured as described above, and fixed by welding or the like. The attachment portion 12 and the side plates 16a and 16b are fixed by the means. The vertical length h1 (FIG. 8C) of the support piece portion is configured such that a gap S3 is formed between the support piece portion and the outer surface of the attachment portion 12. A thin plate-shaped cover member 15 is inserted into the gap S3. The dimension of the gap S3 is formed to a dimension (S3 ≧ t1) substantially equal to the plate thickness t1 of the cover member. As a result, both side edges of the cover member 15 in the short direction are held in the gap S3, and the cover member 15 is held to the extent that it does not fall under its own weight. At the same time, a space a (FIG. 1A) is formed in the longitudinal direction between the attachment portion 12 and the cover member 15. In this way, the light source body A including the light emitting unit 13, the mounting unit 12, and the cover member 15 is configured.

  Both ends of the space a in the longitudinal direction of the light source body A integrated as described above are open, and the openings are closed by two end plates 17a and 17b having the same shape. This end plate also serves as a decorative frame, and is integrally formed of a synthetic resin having good weather resistance, heat resistance, and electrical insulation, in this embodiment, white PBT (polybutylene terephthalate). Each of the end plates 17a and 17b has a small width dimension so as to cover only both ends in the longitudinal direction of the light source body A, the upper surface is opened, and the cross-sectional shape of the inner surface is the same as that of the side plates 16a and 16b. "" Is formed in a U shape so as to cover the outer surface of the "", and is molded integrally with resin so that the stepped portions 17a1, 17b1 are formed on the outer surface. Through holes 17a3 and 17b3 for fixing the end plates are formed on the bottom surfaces of the stepped portions 17a1 and 17b1, respectively, corresponding to the fixing holes 16a3 and 16b3 formed at both ends of the side plates 16a and 16b on both sides. To do.

  As shown in FIG. 8B, the end plates 17a and 17b cover the both ends of the mounting portion 12 and the cover member 15 so as to cover the openings at both ends of the space a so as to cover from both sides. The fixing holes 16a3, 16b3 formed by screw holes formed at both ends of the side plates 16a, 16b on both sides from the through holes 17a3, 17b3 for fixing the end plates formed on the bottoms of the stepped portions 17a1, 17b1. On the other hand, the fixing tool, in this embodiment, is fixed by screwing the tapping screw 18.

  This fixing is performed by screwing with a screwdriver from the back surface 11a2 side of the instrument body 11 toward the vertical line vv direction. Further, when the appliance is installed on the ceiling or the like, the clearance S4 with the ceiling is only a slight clearance S4 between the step portions 17a1 and 17b1 of the end plates 17a and 17b, and a tool such as a screwdriver cannot be inserted. The configuration is such that 18 cannot be removed.

  The lighting device 19 is composed of a case 19a having an elongated rectangular parallelepiped shape in which a large number of electronic components constituting a lighting circuit are housed. The longitudinal direction of the lighting device 19 is substantially the center line aa in the longitudinal direction of the instrument body 11 (FIG. 3). The bottom surface of the case 19a is fixed to the inner surface side of the bottom surface portion 11a of the instrument body 11 by means of a plurality of screws or spot welding. The vertical cross-sectional shape of the case 19a of the lighting device 19 is configured to have a mountain shape, and this mountain-shaped portion is inserted into the recessed groove 12a of the mounting portion 12 when the lighting fixture is assembled as will be described later. Overlapped and accommodated. In addition, the lighting device may be configured separately from the lighting device main body without being built in the lighting device main body 11 to form a lighting device separately mounted lighting device. In addition, C in the figure is a connector for connecting the output terminal of the lighting device 19 and the input terminal of the light emitting unit 13.

  As described above, the light source A composed of the louver 14, the mounting portion 12 provided with the light emitting portion 13, and the cover member 15 is mounted on the fixture main body 11, and the lighting fixture 10 including the direct-attached thin base light constitutes Is done. That is, as shown in FIG. 5 (b), the light emitting part 13 of the light source part A is positioned outside the open part below the case body of the instrument body 11, and the longitudinal direction of the light source body is set to the instrument body 11. It is positioned according to the longitudinal direction. Further, the light source body A is positioned in the vertical direction, and the shaft portion 16a1 formed of the flange portion of the one side plate 16a is fitted into the pivot portion 11c1 of the one side plate 11c of the instrument body 11. Thereby, the light source body A can be rotated in the direction of the arrow over an angle range of about 90 ° around the shaft portion 16 a 1, and the other side plate 16 b of the light source body A can be turned to the other side plate 11 d of the instrument body 11. Abut. In the abutted state, the fixing hole 11d1 and the insertion hole 16d1 are matched, and the mounting screw S1 is pushed in and screwed into the fixing metal fitting 11d2 (FIG. 5A). In this state, at least a part in the height direction of the case 19a of the lighting device 19 fixed to the inner surface side of the bottom surface part 11a of the appliance body 11, that is, the chevron at the tip overlaps, and the concave groove 12a of the mounting part 12 Housed inside. At this time, the front end portion of the lighting device 19 does not hit or contact the attachment portion 12. Further, by incorporating the light source body A into the instrument body 11, as shown in FIG. 8 (a), the closed portions 11b1 formed to extend at both ends of the instrument body 11 have end plates 17a at both ends, The openings 11b at both ends of the instrument main body 11 are closed by abutting against the open upper surface of 17b.

  Thereby, the light source body A and the instrument main body 11 are integrated, and the lighting fixture 10 which consists of a direct-attached thin base light with a louver is comprised. In this embodiment, the length L of the lighting fixture 10 is about 900 mm, the width W is about 150 mm, and the height H is about 40 mm.

  Next, a procedure for installing the lighting fixture 10 configured as described above on the ceiling X will be described. First, the back surface 11a2 of the bottom surface portion 11a of the instrument body 11 is pressed against the ceiling X and supported. In this state, a wood screw is inserted into an installation hole 11a1 made of a dharma hole or the like provided in the bottom surface portion 11a of the case body, and screwed into the ceiling X to be fixed. In this state, wiring for connecting the F cable connected to the commercial power source and the input terminal of the lighting device 19 is performed.

  When wiring is completed, the light source A is positioned in the vertical direction as described above with respect to the instrument main body 11 installed on the ceiling X, and the shaft portion 16a1 of one side plate 16a is placed on the instrument main body 11. Fit into the pivot 11c1. In this state, that is, in a state where the light source body A is opened downward and the lower surface of the fixture body 11 is opened, wiring for connecting the output terminal of the lighting device 19 and the input terminal of the light emitting unit 13 by the connector C is performed.

  Next, the light source body A is rotated around the shaft portion 16a1 in the direction of the arrow in the drawing so as to close the lower surface of the instrument body 11, and the other side plate 16b of the light source body A is moved to the side plate 11d of the instrument body 11. Make contact. In the abutted state, the mounting screw S1 is pushed into the fixing hole 11d1 and the insertion hole 16d1, and is fixed to the fixing bracket 11d2 by screwing (FIG. 5A). Thereby, the light source body A is integrated and integrated in the fixture main body 11, and the lighting fixture 10 which consists of a direct-attached thin base light is installed in the ceiling surface X. As shown in FIG. At this time, the mounting screw S1 and the tapping screw 18 are accommodated and hidden in a narrow gap S4 formed between the ceiling and the side plates 16a and 16b of the light source body A, so that the appearance after installation of the instrument can be improved. it can.

  When the lighting fixture 10 installed above is turned on, light is emitted from each LED 13a of the light emitting unit 13, and the emitted light is emitted by the louver 14 mainly in a short direction perpendicular to the longitudinal direction. Do the lighting. At the same time, in particular, part of the light is blocked by the light shielding plate 14b in the longitudinal direction, and the user is prevented from feeling glare in the longitudinal direction. Also, the heat generated from each LED 13a is dissipated into the instrument main body 11, is made of a steel plate, and the instrument main body is also made of a steel plate from the back side of the mounting portion 12 whose surface area is widened by the concave grooves 12a, 12b, 12b. 11 is emitted to the outside and radiated to the outside. At the same time, it is transmitted from the mounting portion 12 to the side plates 16a and 16b made of two steel plates on both the left and right sides, and is radiated to the outside. Further, heat generated from the electronic components of the lighting device 19 is radiated from the case body 19a into the appliance main body 11, and is radiated from the appliance main body to the outside. At this time, since the path of heat generated from the light emitting unit 13 and the path of heat generated from the electronic components of the lighting device 19 are separated separately, it is difficult for the heat of each other to interfere. That is, the light emitting unit 13 and the lighting device 19 are arranged so as to be shifted in the short direction of the fixture body 11, and the light emitting unit 13 is located above the lower end position of the lighting device 19. The generated heat hardly affects the lighting device 19.

  When removing the light source body A, from the state of FIG. 5 (a), the mounting screw S1 is removed contrary to the above, and the lower surface of the instrument body 11 is opened by rotating in the direction opposite to the arrow. The connector C that connects the lighting device 19 and the light emitting unit 13 is removed to cut off the electrical connection (FIG. 5B). In this state, the light source body A can be easily detached from the instrument body 11 by removing the shaft part 15a1 of the light source body A from the pivotal support part 11c1 of the instrument body 11.

  When a carcass such as an insect is in the space between the cover member 14 and the mounting portion 12 in the removed state, for example, by removing the tapping screw 18 of the end plate 17a and removing the end plate 17a. A space a (FIG. 1A) in the attachment portion 12 is opened. As a result, as shown in FIG. 9, the light source body A is vertically shaken to discharge the foreign matter z such as an insect dead body that has entered the space of the attachment portion 12 to the outside. At this time, the louver 14 is securely fixed to the mounting portion 12 and therefore does not fall. At this time, both side edges in the short direction of the cover member 15 are sandwiched in the gap S3, are held to such an extent that the cover member 15 does not fall under its own weight, and are integrally formed with the mounting portion 12 with the end plate 17a removed. Since it is comprised, the cover member 15 does not fall.

  Further, a tapping screw 18 for fixing the end plates 17a, 17b to the side plates 16a, 16b is provided on the bottom surface portion of the step portions 17a1, 17b1 of the end plate, and the vertical line v from the back surface 11b side of the instrument body 11 is provided. It is performed by screwing with a screwdriver in the -v direction (FIG. 8B). For this reason, in a state where the instrument body 11 is installed on the ceiling X, only a narrow gap S4 is formed between the steps 17a1 and 17b1 between the ceiling and the tool, such as a screwdriver, so that a tapping screw 18 is removed. I can't.

  Thus, when the carcasses such as insects are discharged, it can be performed only in a state where the light source body A is always removed from the instrument body 11, that is, in a state where the electrical connection is cut off by removing the connector C, which is safe. . Further, the cover member 15 is not removed with the light source body A removed, and it can be removed while covering the light emitting portion 13, and the charging portion of the LED 13a cannot be touched by hand, which is safe. Further, the operation when discharging dead bodies such as insects can be easily performed even by a general user by removing either one of the end plates 17a and 17b with one driver.

  As described above, in the present embodiment, the light source body A including the light emitting section 13, the louver 14, the mounting section 12, and the cover member 15 is incorporated into an instrument body embedded in a ceiling or the like as shown in FIGS. The thin louvered base light 30 may be configured.

  In other words, 11 is an instrument body having a hollow bowl shape with a vertical cross-sectional shape installed in the embedding hole 31 formed in the ceiling X, and is attached to both end portions of the side surfaces along the longitudinal direction of the side plates 11c and 11d on both sides. A total of four holes 20 and 20 are formed. Further, two engaging pieces 16a4 are attached to one side plate 16a of the light source body A so as to be rotatable corresponding to the engaging holes 20, and the engaging pieces 16a4 protrude from the side plate 16a by the turning operation. To be configured. Further, two hook-shaped locking pieces 16b4 are attached to the other side surface plate 16b corresponding to the engaging holes 20.

  The instrument body 11 and the light source body A configured as described above are engaged by inserting a hook-shaped engagement piece 16a4 of the light source body into an engagement hole 20 formed in one side plate 11d of the instrument body, and thereby engaging the light source body. The pivotable engagement piece 16a4 is inserted into and engaged with the engagement hole 20 formed in the other side plate 11c of the instrument body by rotating and projecting. As a result, as shown in FIG. 11, the light source body A is incorporated and integrated so that it can be attached to and detached from the instrument body 11, and is composed of a ceiling-embedded thin base light with a louver. 30 is configured.

  When removing the light source body A, from the state of FIG. 11, the engagement piece 16a4 of one side plate 16a is turned in the opposite direction to engage with the engagement hole 20 of the side plate 11c. The light source body A is released from the fixture body 11 by releasing the light source body A downward to remove the connector C, and further removing the hook-shaped locking piece 16b4 of the other side plate 16b from the engagement hole 20. Can be removed. In addition, the instrument main body 11 of this modification is previously installed on the ceiling with a fixture made of a stainless steel plate spring or the like provided on the outer surface of the side plates 11c and 11d of the instrument main body, or a suspension bolt. In addition, the other structure in this modification, an effect | action, the installation procedure to a ceiling etc. are the same as that of embodiment mentioned above, and detailed description is abbreviate | omitted.

  Also in this modified example, similarly to the above-described embodiment, the light emitted from each LED 13a of the light emitting unit 13 is radiated by the louver 14 mainly in the short direction perpendicular to the longitudinal direction, and the intended predetermined illumination is performed. At the same time, in particular, the light is partially blocked by the light shielding plate 14b in the longitudinal direction, and the user is prevented from feeling glare in the longitudinal direction.

  Further, the end plates 17a and 17b can be removed only in a state where the light source body A is removed from the instrument main body 11. Thus, when the carcasses such as insects are discharged, it can be performed only in a state where the light source body A is always removed from the instrument body 11, that is, in a state where the electrical connection is cut off by removing the connector C, which is safe. . Further, the cover member 15 is not removed with the light source body A removed, and the work can be performed while the light emitting unit 13 is covered. In particular, according to the present modification, the directly mounted light source body A and the directly mounted light source body A can be easily configured by using the directly mounted light source body A in common.

  In the present embodiment, the lighting apparatus is preferably applied to a base light or the like that is installed on an installation object such as a ceiling. Various lighting fixtures may be configured. Although the solid light emitting element is constituted by a light emitting diode, it is allowed to be constituted by a solid light emitting element such as a semiconductor laser or an organic EL. The solid-state light-emitting elements are mounted in a straight line on an elongated rectangular circuit board. However, some solid-state light-emitting elements are arranged in a regular order, such as a matrix of many solid-state light-emitting elements, staggered shapes, or radial shapes. Or the whole may be arrange | positioned and mounted in planar shape. The cover member may be made of transparent resin or transparent or translucent glass.

  As described above, according to the present embodiment, the frame portion 14a, the fixing piece 14e formed to protrude from one end side of the frame portion, and the protrusion portion formed to protrude from the other end side of the frame portion are engaged with the attachment portion 12 and fixed. An engaging piece 14f configured to be able to lock a fixing piece having the same shape as the piece together with the frame portion, and the adjacent fixing piece 14e and the engaging piece 14f are locked to each other so that the concave groove 12b of the mounting portion 12 is provided. By using a louver having high strength and cost advantage, the luminaire using an LED capable of suppressing glare as a light source can be provided.

  Further, the louver 14 has a light shielding angle θ1 in the longitudinal direction by the light shielding plate 14b larger than a light shielding angle θ2 in the short direction by the reflecting surface 14d, so that the light emitted from each LED 13a of the light emitting unit 13 is transmitted by the louver 14. The light can be emitted mainly in a short direction perpendicular to the longitudinal direction and intended illumination can be performed, and at the same time, part of the light can be blocked by the light shielding plate 14b in the longitudinal direction. It becomes possible to suppress the feeling of glare.

  Also, in light fixtures using light emitting diodes as light sources, the light source is placed shallow and close to the surface in order to achieve thinning, making it more difficult to shield from the side plates of the device body. Yes. However, according to the louver 14 of the present embodiment, a desired light shielding angle can be reliably formed by the light shielding plate 14b, and a louver suitable for this type of thinning can be provided.

  Further, since the louver 14 is divided into a plurality of parts and is not thin and long, the louver is difficult to bend along the longitudinal direction, and each divided louver 14 has the same shape. In addition, it is possible to configure a small common mold for configuring the divided louvers, and thus it is possible to reduce the cost. In addition, since a louver with the same configuration can be configured with a common mold, it is possible to support various sizes of equipment simply by selecting the number of louvers used, and to provide a louver with excellent versatility. Can do.

  Further, each louver 14 can be attached by a single tapping screw S2, so that the number of parts is small and the cost is further advantageous, and the luminaire with louvers suitable for mass production is simplified and the assembly work is simplified. Is possible. Further, each louver 14 can be easily removed by removing one screw and pulling out the engagement piece 14f from the engagement hole 12f, and the dirty louver can be easily cleaned. Further, when the foreign matter z such as insect dead body that has entered the space of the attachment portion 12 is discharged to the outside, each louver 14 is fixed to the attachment portion 12 so that it does not fall and is safe.

  Further, according to the present embodiment, since the concave groove 12b of the mounting portion 12 is configured to form the inclined surface 12b1, even if it is configured without providing the louver 14 with respect to the mounting portion 12, in other words, mounting By providing the portion 12 with a reflection function, it is possible to configure a luminaire without a louver, and it is possible to provide a luminaire excellent in versatility. The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Appliance main body 12 Mounting part 12b Groove | groove 13 Light-emitting part 14 Louver 14a Frame part 14b Light-shielding plate 14c Light exit 14d Reflecting surface 14e Fixed piece 14f Engagement piece (theta) 1, (theta) 2 Light-shielding angle

Claims (2)

A rectangular instrument body;
An attachment part formed with a concave groove along the longitudinal direction of the instrument body;
A light emitting portion disposed along the recessed groove of the mounting portion;
A frame, a fixed piece projecting and forming at one end of the frame, and projecting from the other end of the frame, engaging the mounting portion, and fixing the fixed piece having the same shape as the fixed piece to the frame A plurality of louvers each having an engaging piece configured to be locked together with the portion, the adjacent fixing piece and the engaging piece being locked to each other and attached to the concave groove of the attachment portion;
The lighting fixture characterized by comprising. The louver includes a plurality of light shielding plates provided at predetermined intervals in the longitudinal direction, a light emitting port formed so that a light emitting portion faces outward between adjacent light shielding plates, and a short side of the light emitting port. 2. A light shielding angle in a longitudinal direction by a light shielding plate is larger than a light shielding angle in a short direction by a reflection surface. The luminaire described.

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