JP2011249219A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture aimed at thinning and capable of effectively radiating heat of solid light-emitting elements.SOLUTION: The lighting fixture 10 is provided with a fixture body 11 of a rectangular shape, a lighting device 12 arranged along a length direction of the fixture body, a mounting part 13 forming a concave groove 13a for housing at least a part of the lighting device in a height direction and with a pair of concave grooves 13b, 13b nearly in parallel with either side of the groove and recessed in a reverse direction, light-emitting parts 14 made of solid light-emitting elements 14a arranged along a length direction of the pair of concave grooves of the mounting part, and a translucent cover member 15 fitted so as to cover the light-emitting parts.

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. These lighting fixtures, especially direct-mounted base lights installed on the ceiling of stores, offices, etc., require further downsizing of the fixtures, especially thinner, in order to reduce the protruding dimensions from the ceiling surface. Has been. At the same time, there is a demand for a device with a larger amount of light than ever before.

JP 2000-156116 A JP 2004-179048 A

  For this reason, in lighting fixtures using this type of solid-state light emitting element, it is an issue to determine how to reduce the thickness by configuring the reflector and lighting device of the fixture according to the light source to be reduced in size and thickness. It has become. In particular, the lighting device has been increased in size because the circuit configuration has become complicated and the number of electronic components has increased due to the increase in the amount of light, and when this enlarged lighting device is accommodated in the fixture body, it is used for a fluorescent lamp. It is common to accommodate in the space part formed in the back side of a reflecting plate like the ballast used. For this reason, the lighting device protrudes on the back side of the reflecting plate, the entire apparatus becomes large, and it is difficult to achieve thinning.

  On the other hand, in recent years, there has been an increasing demand for fixtures with a large amount of light, so it is necessary to mount a large number of high-power light-emitting diodes. It is an important issue how to effectively dissipate heat.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture capable of reducing the thickness of the fixture and effectively radiating the heat of the solid state light emitting device.

  The invention of the lighting fixture in the embodiment of the present invention includes: a fixture main body having a rectangular shape; a lighting device disposed along a longitudinal direction of the fixture main body; and a concave groove that accommodates at least a part of the lighting device in the height direction. And a mounting portion formed with a pair of concave grooves that are substantially parallel to both sides of the concave groove and recessed in the opposite direction; and disposed along the longitudinal direction of the pair of concave grooves of the mounting portion. And a light-transmitting cover member provided so as to cover the light-emitting part.

  According to this embodiment, it is possible to reduce the thickness of the instrument and to effectively dissipate the heat of the solid state light emitting device.

The perspective view which shows the lighting fixture which concerns on 1st Embodiment in the state which removed the end plate. 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 . FIG. 2B also shows a lighting apparatus, in which FIG. 2A is a partial side view seen from the direction of arrow a in FIG. 2B, FIG. 2B is a cross-sectional view taken along line bb in FIG. These are sectional drawings which follow the cc line of this (a) figure. The perspective view which similarly shows the louver of a lighting fixture. 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 the present embodiment constitutes a direct-attached thin base light, a fixture main body 11 having a rectangular shape, a lighting device 12 arranged along the longitudinal direction of the fixture main body, A mounting portion 13 having a concave groove 13a that accommodates at least a part in the height direction in the longitudinal direction and a pair of concave grooves 13b, 13b that are substantially parallel to both sides of the concave groove and that are recessed in the opposite direction. The light-emitting part 14 which consists of the solid light emitting element 14a arrange | positioned along the longitudinal direction of a pair of ditch | groove of this, and the translucent cover member 15 provided so that a light-emitting part may be covered are comprised.

  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 formed in the closing part 11b1 integrally by extending the bottom face part 11a (FIG. 6 (a)). 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 lighting device 12 includes a case 12a that is a long and narrow rectangular parallelepiped housing a large number of electronic components that form a lighting circuit. The longitudinal direction of the lighting device 12 is substantially the center line aa in the longitudinal direction of the instrument body 11 (FIG. 3). The bottom surface of the case 12a 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 12a of the lighting device 12 is configured to have a mountain shape, and this mountain-shaped portion is inserted into the recessed groove 13a of the mounting portion 13 when the lighting fixture is assembled as will be described later. It is accommodated by overlapping (FIG. 5A).

  The attachment portion 13 is configured by pressing a metal having good thermal conductivity in order to enhance heat dissipation, in this embodiment, a white coated steel plate made of a thin plate, like the instrument main body 11. The mounting portion 13 is located on a substantially central line aa (FIG. 3) in the longitudinal direction, integrally formed with a concave groove 13a, and substantially parallel to both sides of the concave groove and recessed in opposite directions. The grooves 13b and 13b are integrally formed, have a rectangular long shape with both ends in the short direction open, and are configured to be an attachment portion sized to be accommodated in the instrument body 11.

  When the luminaire is assembled, at least a part in the height direction of the case 12a of the lighting device 12, which will be described later, that is, the chevron at the tip overlaps the concave groove 13a formed in the longitudinal direction of the mounting portion 13. (FIG. 5A). In addition, an inclined surface 13b1 is formed on the inner surface of each of the concave grooves 13b, 13b on both sides. The inclined surface 13b1 is a surface that is inclined so as to open outward. Further, both side edges in the longitudinal direction of the mounting portion 13 are bent in the vertical direction to integrally form the support piece 13c.

  As shown in FIG. 5A, the light emitting unit 14 includes a solid light emitting element 14a and a circuit board 14b 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 14a. 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 14b 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. 5A) is sandwiched with an electric insulating layer. A wiring pattern made of copper foil is formed, and a light emitting section 14 made up of a light emitting module is constructed in which a plurality of LEDs 14a 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 13, and each of the concave grooves 13b and 13b on both sides forms a total of eight modules. Divided and provided.

  As described above, the light emitting portion 14 having the LED 14a mounted on the circuit board 14b is formed on the bottom of each concave groove 13b, 13b formed on the mounting portion 13 on the substantially center line bb (FIG. 3) in the longitudinal direction. It is located so as to be electrically insulated and in close contact. Further, it is fixed in close contact with the bottoms of the grooves 13b and 13b using screws or the like via an electrical insulating sheet (not shown) made of silicone resin or the like as necessary.

  And the cover member 15 is provided facing the ditch | grooves 13b and 13b of the attaching part 13 so that the light emission part 14 may be covered. The cover member is made of a translucent milky white acrylic resin that is frosted to prevent glare, has a long rectangular thin plate shape, and has the same outer shape and dimensions as the mounting portion 13. Configure.

  The cover member 15 and the mounting portion 13 provided with the light emitting portion 14 are integrated as follows to constitute the light source body A. That is, as shown in FIGS. 4 and 6, 16 a and 16 b are long sash-like side plates along both side edges in the longitudinal direction of the mounting part 13, and one pair of two sheets corresponding to 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. In this embodiment, the white coated steel plate made of a thin plate is pressed as in the case of the instrument body 11 and the mounting portion 13. 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 13c and 13c formed on both side edges in the longitudinal direction of the attachment portion 13 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 13 and the side plates 16a and 16b are fixed by the means. The vertical length h1 (FIG. 6C) of the support piece portion is configured such that a gap S2 is formed between the support piece portion and the outer surface of the attachment portion 13. A thin plate-shaped cover member 15 is inserted into the gap S2. The dimension of the gap S2 is formed to a dimension (S2 ≧ t1) substantially equal to the plate thickness t1 of the cover member. Thus, both side edges in the short direction of the cover member 15 are held in the gap S2, 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 13 and the cover member 15. In this way, the light source body A composed of the light emitting part 14, the attachment part 13, 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. 6B, the end plates 17a and 17b cover the opening portions at both ends of the space a so as to cover both ends of the mounting portion 13 and the cover member 15 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 S3 with the ceiling is only a slight clearance between the step portions 17a1 and 17b1 of the end plates 17a and 17b, and a tool such as a screwdriver cannot be inserted. It is the composition which cannot be removed.

  Reference numeral 19 in FIG. 5 denotes a louver, as shown in FIG. 7, a synthetic resin having good weather resistance, heat resistance, and electrical insulation. In the present embodiment, it is an elongated rectangular white PBT, and includes a frame portion 19a and a light shielding plate. 19b is integrally formed. A plurality of light shielding plates are provided at predetermined intervals in the longitudinal direction corresponding to the plurality of LEDs 14a of the light emitting unit, and the LEDs 14a of the light emitting unit 14 face outward between the adjacent light shielding plates 19b. The light exit port 19c is formed in the front. Reflecting surfaces 19d that expand outward are integrally formed on both side portions of the light exit opening in the short direction. A plurality of louvers 19 configured as described above are prepared. In the present embodiment, a plurality of LEDs 14a of the light emitting section 14 arranged in a straight line along the concave grooves 13b and 13b of the mounting section 13 are emitted. It arrange | positions facing so that it may face outside from the opening | mouth 14c. In addition, the louver 19 is a total of eight louvers including four and left and right concave grooves 13b and 13b so that a large number of LEDs 14a can be arranged in an equally divided state.

  Each louver 19 is supported by screws on the inner bottom surfaces of the recessed grooves 13 b and 13 b of the attachment portion 13 and is supported by being pressed by the inner surface side of the cover member 15. The light shielding angle of the louver 19 installed above is restricted to a light shielding angle of about 60 ° in the longitudinal direction by the light shielding plate 19b, and from the light shielding plate 19b by the reflecting surface 19d inclined in the short direction perpendicular to the longitudinal direction. In this embodiment, the light distribution is controlled to a light shielding angle of about 30 °, and the light distribution characteristic is such that the light emitted from the light emitting unit 14 is emitted mainly in the short direction perpendicular to the longitudinal direction. ing. In addition, in this embodiment, since the concave groove 13b of the attachment part 13 was comprised so that the inclined surface 13b1 might be made, even if it comprises without providing the louver 19 with respect to the attachment part 13, in other words, an attachment part For example, a lighting device without a louver, for example, as shown in FIG. In addition, C in the figure is a connector that connects the output terminal of the lighting device 12 and the input terminal of the light emitting unit 14.

  As described above, the light source body A composed of the light emitting section 14, the louver 19, the mounting section 13, and the cover member 15 is mounted on the apparatus main body 11 to constitute the lighting apparatus 10 including a direct-attached thin base light. That is, as shown in FIG. 5 (b), the light emitting portion 14 of the light source unit 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 12a of the lighting device 12 fixed to the inner surface side of the bottom surface portion 11a of the appliance body 11, that is, the chevron at the tip overlaps, and the concave groove 13a of the mounting portion 13 overlaps. Housed inside. At this time, the tip portion of the lighting device 12 does not hit or come into contact with the mounting portion 13. Further, by incorporating the light source body A into the instrument main body 11, as shown in FIG. 6A, the closed portions 11b1 formed to extend at both ends of the instrument main 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 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 and supported by the ceiling X (FIG. 5B). 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 12 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 12 and the input terminal of the light emitting unit 14 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 metal fitting 11d2 (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 S3 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 device is improved. it can.

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

  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 which connected the lighting device 12 and the light emitting part 14 is removed, and electrical connection is interrupted | blocked (FIG.5 (b)). In this state, the light source body A can be easily detached from the instrument body 11 by removing the shaft portion 16a1 of the light source body A from the pivotal support portion 11c1 of the instrument body 11.

  When a carcass such as an insect is in the space between the cover member 15 and the attachment portion 13 in the removed state, for example, by removing the tapping screw 18 of the end plate 17a and removing the end plate 17a. The space a (FIG. 1) in the attachment portion 13 is opened. As a result, as shown in FIG. 8, the illuminating device 10 can be shaken vertically to discharge foreign matter z such as insect dead bodies that have entered the space of the attachment portion 13. At this time, both side edges of the cover member 15 in the short direction are held in the gap S2, and are held so that the cover member 15 does not fall under its own weight, and is integrally formed with the mounting portion 13 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 of the step portions 17a1, 17b1 of the end plate, and the vertical line v from the back surface 11a2 side of the instrument body 11 is provided. It is performed by screwing with a screwdriver in the -v direction (FIG. 6B). For this reason, in the state in which the instrument main body 11 is installed on the ceiling X, only a narrow gap S3 due to the stepped portion is formed between the ceiling and the tool, so that a tool such as a screwdriver cannot be inserted, and the tapping screw 18 cannot be removed. .

  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, it can be removed while covering the light emitting unit 14, and the charging unit of the LED 14a 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 unit 14, the louver 19, the mounting unit 13, and the cover member 15 is incorporated into an instrument body embedded in a ceiling or the like as shown in FIGS. The thin 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. 10, the light source A is assembled and integrated so that it can be attached to and detached from the fixture body 11, and the lighting fixture 30 formed of a ceiling-embedded thin base light is obtained. Composed.

  Further, when the light source body A is removed, from the state of FIG. 10, the engagement piece 16a4 of one side plate 16a is rotated in the direction opposite to the above 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, in this modification, the attaching part 13 was comprised as a reflecting plate. That is, the inclined surface 13b1 formed in the concave groove 13b of the mounting portion 13 is configured as a reflecting plate having a reflecting function by applying, for example, white coating or mirror finishing, and configured as a lighting device without a louver. did. Moreover, the instrument main body 11 of this modification is previously installed on the ceiling by 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, a suspension bolt, or the like. 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, the end plates 17a and 17b can be removed only in a state in which the light source body A is removed from the instrument body 11 as in the above-described embodiment. 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. . In addition, 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 14 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 concave groove 13a that accommodates at least a part of the lighting device 12 in the height direction is formed in the longitudinal direction, the pair of concaves that are substantially parallel to both sides of the concave groove and recessed in the opposite direction. The lighting device 12 can be accommodated in the appliance main body by minimizing the dimension protruding from the appliance main body 11 by the mounting portion 13 in which the grooves 13b and 13b are formed, and the appliance can be thinned. It becomes possible. At the same time, the concave grooves 13a, 13b, and 13b increase the surface area of the mounting portion 13, and the heat of the LED 14a can be effectively radiated. Further, the strength of the attachment portion 13 is increased by these concave grooves, the deformation of the attachment portion is prevented, and the reflection performance is not affected when the attachment portion has a reflection function. In particular, it is suitable for this kind of thin base light using a long mounting part that is easily deformed. 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 Lighting device 13 Mounting part 13a Groove 13b Groove 14 Light emission part 15 Cover member 16a, 16b Side plate S1 Fixing tool

Claims (2)

A rectangular instrument body;
A lighting device disposed along the longitudinal direction of the appliance body;
A mounting portion in which a concave groove that accommodates at least a part in the height direction of the lighting device is formed in the longitudinal direction, and a pair of concave grooves that are substantially parallel to both sides of the concave groove and are recessed in the opposite direction;
A light emitting part comprising a solid light emitting element disposed along the longitudinal direction of the pair of concave grooves of the mounting part;
A translucent cover member provided to cover the light emitting part;
The lighting fixture characterized by comprising. Both sides of the mounting portion and the cover member are integrated by a side plate, and this side plate is supported such that one side is pivotally supported by the instrument body and the other side can be attached and detached with a fixture. The lighting fixture according to claim 1, wherein the mounting portion and the cover member provided with the light emitting portion are opened in a state where one side portion is pivotally supported with respect to the fixture main body.

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