JP5892355B2 - lighting equipment - Google Patents

Description

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

  2. Description of the Related Art Conventionally, in a lighting fixture using a fluorescent lamp as a light source, a fixture body and a reflector are usually provided separately, and components such as a lighting device are arranged on the fixture body.

  In recent years, along with higher output, higher efficiency, and widespread use of LEDs, lighting fixtures that can be used indoors or outdoors using LEDs as light sources have been developed.

JP-A-8-161914 JP 2010-73670 A JP 2010-115949 A

However, in the lighting fixture as described above, the fixture main body and the reflector are provided separately, and it is difficult to save labor in the construction work when installing the lighting fixture. There is a problem that the arrangement of is not efficient.

An object of this invention is to provide the lighting fixture which can aim at labor saving of construction work, can ensure storage space, and can arrange | position components, such as a lighting device, efficiently .

Luminaire embodiment, elongated having a top plate portion having a mounting hole, a wall portion formed on both sides of the top plate portion, and the inside formed concave of the top plate portion and the wall portion, the A light source unit provided on the main body so as to cover the opening side of the housing recess; a lighting device that converts alternating current of the alternating current power source into direct current and supplies a direct current output to the light source unit; A terminal block for electrically connecting the apparatus; and first and second attachment means capable of attaching the light source part to the main body; and the light source part rises in the back direction on both the attachment surface and the attachment surface. A mounting member having a side wall provided in such a manner, a substrate attached to a surface of the mounting surface opposite to the surface provided with the side wall, a plurality of light emitting elements provided on the substrate, and a plurality of light emitting elements And a cover member provided on the mounting member so as to cover the light source unit and the mounting surface. Recesses formed in the wall is attached to the body so as to face the mounting holes of the top plate portion of the main body, in the mounted state of the body and the light source unit, the lighting device, the terminal block and the first and second mounting The means is disposed in a space formed by the housing recess and the light source part of the main body, and the lighting device , the terminal block, and the mounting hole are provided between the first mounting means and the second mounting means. It is characterized by that.

According to the present invention, the number of parts can be reduced, and labor saving of construction work can be achieved. Moreover, since an accommodation space is ensured in the accommodation recess, it is possible to provide a lighting fixture capable of efficiently arranging components such as a lighting device.

It is a perspective view which shows the lighting fixture which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the same lighting fixture seeing from the back side. It is a disassembled perspective view which shows the same lighting fixture. FIG. 3 is a cross-sectional view taken along line XX in FIG. 2. In the same lighting fixture, it is sectional drawing which shows the attachment state of the light source part to a fixture main body. It is a perspective view which shows the same instrument main body. It is a side view which shows the same instrument main body. It is a perspective view which shows the attachment member. It is a side view which shows the attachment member. It is a perspective view which shows the cover member. It is a side view which shows the cover member. It is a perspective view which shows the locking member. It is a side view which shows the locking member. In the same lighting fixture, it is a perspective view which removes a light source part and shows it seeing from the front side. In the same lighting fixture, it is a perspective view which removes a light source part and shows a front view side including a mounting bolt. It is explanatory drawing which shows typically the state which installed the several said lighting fixture in series. It is sectional drawing which shows the wiring state of the feed line at the time of installing the same lighting fixture in series several units | sets. It is sectional drawing which shows the operation | movement which cancels | releases a locking member in the same lighting fixture. It is sectional drawing which shows the lighting fixture which concerns on the 2nd Embodiment (Example 1) of this invention. It is sectional drawing which shows the lighting fixture which concerns on the 2nd Embodiment (Example 2) of this invention. It is sectional drawing which shows the lighting fixture which concerns on the 3rd Embodiment of this invention. It is sectional drawing which shows the lighting fixture which concerns on the 4th Embodiment of this invention. Similarly, it is sectional drawing which shows the lighting fixture which concerns on the 4th Embodiment of this invention. It is sectional drawing which shows the lighting fixture which concerns on the 5th Embodiment of this invention. Similarly, it is sectional drawing which shows the lighting fixture which concerns on the 5th Embodiment of this invention. It is sectional drawing which shows the lighting fixture which concerns on the 6th Embodiment of this invention.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIGS. 1 to 5 show a lighting fixture, FIGS. 6 and 7 show the fixture body 1, FIGS. 8 and 9 show the mounting member 21, and FIGS. 10 and 11 show the translucent cover member 24. 12 and 13 show the locking member 4. 14 to 15 show a state in which the light source unit 2 is removed from the instrument body 1, FIGS. 16 and 17 show a wiring state of the feed wire 6, and FIG. 18 releases the locking member 4. The operation is shown.

In addition, illustration of wiring member relations, such as a lead wire, is abbreviate | omitted, the same code | symbol is attached | subjected to the same part in each figure, and the overlapping description is abbreviate | omitted.

  FIGS. 1 to 4 show a ceiling-mounted lighting fixture installed on the ceiling surface. This lighting fixture has an inverted Fuji type, and is a horizontally long and elongated fixture body. 1, a light source unit 2 and a lighting device 3 disposed in the instrument main body 1, and a locking member 4 that attaches and holds the light source unit 2 to the instrument main body 1.

  As shown with reference to FIGS. 6 and 7, the instrument body 1 is formed by bending a galvanized steel sheet, and an accommodation recess 11 is formed at a substantially central portion along the longitudinal direction. The housing recess 11 includes a top plate portion 11a and side walls 11b formed by bending so as to hang perpendicularly from both sides of the top plate portion 11a to the front surface side. Further, both sides in the width direction on the opening side of the housing recess 11, that is, both sides on the front side of the side wall 11 b are bent in a substantially V shape in side view, and the side plate portion 11 c extends along the housing recess 11. Is formed. Therefore, the side plate part 11c includes an inclined surface whose side surface shape extends in the back direction.

  The housing recess 11 and the side plate portion 11c are integrally formed by bending a plate material, and at least the front surface of these is coated with white so as to increase the light reflectivity. Therefore, the surface of the inclined surface of the side plate portion 11c forms a reflection surface, and the side plate portion 11c functions as a reflection plate.

  A pair of locking claw passage holes 11d are formed at both ends in the longitudinal direction of the side plate portion 11c of the housing recess 11. A locking claw 4a of a locking member 4 to be described later is arranged in the locking claw passage hole 11d. Further, a release hole 11e is formed in the side plate portion 11c so as to face the pair of locking claw passage holes 11d. The release hole 11e is used to release the locking claw 4a of the locking member 4 as will be described later.

  Further, as mainly shown in FIGS. 2 and 6, a pair of mounting holes 11f are formed on the back side of the instrument body 1, that is, on both end sides of the top plate portion 11a. A pair of mounting bolts Bt provided in the ceiling structure penetrate through the mounting hole 11f from the outer surface side, and the instrument body 1 is installed on the ceiling surface. In addition, in order to reinforce the mounting hole 11f, a reinforcing portion 11g protruding in a dome shape to the back side is formed around the mounting hole 11f. Further, end plates 12 having a substantially inverted trapezoidal shape are attached to both ends of the instrument body 1 in the longitudinal direction.

  The light source unit 2 includes a mounting member 21, a substrate 23 on which a plurality of light emitting elements 22 are mounted, and a cover member 24.

  As shown with reference to FIGS. 8 and 9, the attachment member 21, like the instrument body 1, is horizontally long and long, and has a flat attachment surface 21 a along the longitudinal direction. The first side wall 21b rising at right angles from both sides of the mounting surface 21a to the back side, and the second side wall extending from the first side wall 21b in the horizontal direction and further rising inward toward the back side. Side wall 21c. A plurality of cut and raised pieces 21d are formed on the first side wall 21b on the mounting surface 21a side so as to protrude outward in the width direction at substantially equal intervals.

  The attachment member 21 is made of a material having good thermal conductivity such as a galvanized steel plate or an aluminum plate.

  The substrate 23 is formed in a substantially rectangular shape, and a plurality of, that is, four substrates 23 are arranged in a straight line, and the back surface thereof is in close contact with the mounting surface 21 a by screwing or the like to the mounting surface 21 a of the mounting member 21. Installed to do. A plurality of light emitting elements 22 are mounted on the surface side of the substrate 23.

  The board | substrate 23 consists of a flat plate of the glass epoxy resin which is an insulating material, and the wiring pattern formed with the copper foil is given to the surface side. Further, a resist layer is appropriately applied. The material of the substrate 23 can be a ceramic material or a synthetic resin material when an insulating material is used. Furthermore, when it is made of metal, it is preferable to apply a material having good thermal conductivity such as aluminum and excellent heat dissipation.

  The light emitting element 22 is an LED, which is a surface mount type LED package. Schematically, it is composed of an LED chip disposed in a main body made of ceramics, and a translucent resin for molding such as an epoxy resin or a silicone resin that seals the LED chip.

  The LED chip is a blue LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light, a yellow phosphor that emits yellow light that is complementary to blue light is used. Yes.

  In addition, LED may be made to mount an LED chip directly on the board | substrate 23, and you may make it mount a bullet-type LED, and a mounting system and a format are not exceptionally limited.

  As shown with reference to FIGS. 10 and 11, the cover member 24 is made of a light-transmitting material such as acrylic or polycarbonate, and is formed in a long and semi-cylindrical shape. A pair of fitting grooves 24 a are formed on the open end side of the cover member 24 along the longitudinal direction. Further, the cover member 24 has a function of diffusing light emitted from the light emitting element 22 by being subjected to frost processing. Note that a diffusing material may be appropriately mixed in the cover member 24 so as to have light diffusibility.

  The cover member 24 configured as described above is attached to the attachment member 21 so as to cover the substrate 23 on which the plurality of light emitting elements 22 are mounted. Specifically, as shown in FIG. 4, the cut and raised pieces 21 d of the attachment member 21 are slid and fitted into the pair of fitting grooves 24 a of the cover member 24 to be attached.

  As described above, the light source unit 2 is configured by combining the mounting member 21, the substrate 23 on which the plurality of light emitting elements 22 are mounted, and the cover member 24.

  Further, the lighting device 3 is attached to the inside of the top plate portion 11 a in the housing recess 11 of the appliance body 1. The lighting device 3 is configured by housing a circuit board and circuit components mounted on the board in a box-like case, and is connected to a commercial AC power supply AC. Is generated. The lighting device 3 is configured, for example, by connecting a smoothing capacitor between output terminals of a full-wave rectifier circuit, and connecting a DC voltage conversion circuit and current detection means to the smoothing capacitor. Therefore, the lighting device 3 is connected to the light emitting element 22 via the substrate 23, supplies the direct current output to the light emitting element 22, and controls the lighting of the light emitting element 22.

  As shown in FIGS. 4 and 14, the lighting device 3 is arranged such that both side walls of the case are in contact with the side wall 11 b of the housing recess 11 without a gap. For this reason, the lighting device 3 serves to reinforce the appliance body 1. Here, the absence of a gap means that the side wall of the lighting device 3 and the side wall 11b of the housing recess 11 do not need to be in full contact with each other, and are grasped in relation to the reinforcing effect. The presence of gaps is acceptable. Furthermore, the lighting device 3 is disposed in the vicinity of the one attachment hole 11f.

  A terminal block 5 is attached to the inside of the top plate portion 11 a in the housing recess 11. The terminal block 5 is connected to a power line, a feed line, and a dimming signal line.

  As shown in FIG. 12 and FIG. 13 with reference to FIG. 12 and FIG. 13, the locking member 4 is formed by being bent into a substantially U shape by a spring material such as a stainless steel material. Further, locking claws 4 a are formed at both ends of the locking member 4 by bending inward. As shown in FIGS. 2 to 4, a pair of the locking members 4 are attached to both ends of the housing recess 11 of the instrument body 1 so as to overlap from the outside. More specifically, as shown in FIG. 4, the locking claw 4 a is disposed through the locking claw passage hole 11 d of the receiving recess 11 and is attached to the outside of the receiving recess 11 by a fixing means such as a screw (see FIG. 3). It is supposed to be.

  As shown in FIG. 5, the light source unit 2 is attached to the locking member 4 configured as described above. That is, the light source part 2 is arrange | positioned so that the opening part side of the accommodation recessed part 11 may be covered.

  When the light source unit 2 is moved in the direction of the illustrated arrow with respect to the instrument main body 1, the inclined second side wall 21 c of the mounting member 21 contacts the locking claw 4 a of the locking member 4. By further moving the light source unit 2 from this state and pushing it into the housing recess 11 against the elasticity of the locking claw 4a, the locking claw 4a is elastically deformed outward by the second side wall 21c, The light source unit 2 moves into the housing recess 11. When the predetermined amount of the second side wall 21c enters the accommodating recess 11, the locking claw 4a is released from elastic deformation, and the mounting member 21 is engaged and held at a predetermined position by the locking claw 4a (see FIG. 4). ).

  In this case, since the second side wall 21c is formed in an inclined shape, the light source unit 2 can be attached smoothly in relation to the locking claw 4a.

  In this state, the second side wall 21c of the mounting member 21 comes into surface contact with the side wall 11b of the housing recess 11, and the mounting member 21 and the instrument body 1 are thermally coupled. . Moreover, since the locking member 4 is attached so that it may overlap from the outer side of the accommodation recessed part 11 of the instrument main body 1, even if fixing means, such as a screw, remove | eliminate, the light source part 2 is prevented from falling. Can be ensured. If the locking member 4 is attached to the inside of the housing recess 11 by the fixing means, there is a risk that the light source unit 2 will drop together with the locking member 4 if the fixing means is removed.

  The installation state of the lighting fixture configured as described above on the ceiling surface C will be described mainly with reference to FIGS. 4 and 5.

  First, when installing, as shown in FIG. 5, a pair of mounting bolts Bt provided on the ceiling structure are passed from the outer surface side to the mounting holes 11f of the top plate portion 11a of the instrument body 1, and the mounting bolts Bt are passed through the mounting bolts Bt. The nut Nt is tightened from the inner surface side of the top plate portion 11a through a washer. Thus, the reinforcing portion 11g on the outer surface side of the top plate portion 11a and the rear side one end portion of the side plate portion 11c are in close contact with the ceiling surface C, so that the instrument body 1 is installed on the ceiling surface C. In this case, as shown in FIG. 15, the mounting hole 11f (left side in the drawing) through which the mounting bolt Bt passes and is tightened by the nut Nt is formed in the vicinity of the portion where the lighting device 3 is disposed. It is possible to suppress the instrument body 1 from being deformed by the tightening force due to the reinforcing effect.

  Subsequently, the light source unit 2 is attached to the instrument body 1. In this case, as shown in FIG. 4, a predetermined accommodation space is secured in the accommodation recess 11. For this reason, it becomes possible to arrange | position the lighting device 3, the terminal block 5, etc. in the accommodation recessed part 11, and by attaching the light source part 2 to the instrument main body 1, the lighting device 3, the terminal block 5, and a wiring related member are light sources. Since it is covered with the portion 2 and is difficult to see in appearance, it is possible to improve the appearance without providing a special member.

  Moreover, since the side plate part 11c provided as a reflecting plate is integrally formed in the instrument main body 1 having the storage recess 11, the number of parts can be reduced, and labor saving of construction work can be achieved.

  Next, as shown in FIG. 16, a plurality of the lighting fixtures may be arranged in series on the ceiling surface C. In this case, it is necessary to connect each lighting fixture continuously by the feed line 6 (power supply line). In the lighting fixture of the present embodiment, as shown in FIG. 15, a feed wire passage hole 6 a is formed in the side wall 11 b of the housing recess 11 in the vicinity of the terminal block 5. Therefore, the feed wire 6 is led out from the terminal block 5 through the feed wire passage hole 6a and passed through the space formed by the outside of the housing recess 11 of the instrument body 1 and the side plate portion 11c as shown in FIG. It can be connected to the next stage lighting fixture. Thereby, the feed line 6 can be wired well using the space effectively.

  Next, as shown in FIG. 18, an operation of releasing the locking member 4 in order to remove the light source unit 2 from the instrument body 1 due to maintenance or the like will be described. For example, using a tool such as a screwdriver, the tip of the screwdriver is inserted into the release hole 11e formed in the side plate portion 11c. Next, the latching claw 4a of the latching member 4 is deformed by the driver in the direction of the arrow shown in the figure and removed from the latching claw passage hole 11d. Then, since the engagement of the locking claw 4a is released (the engagement of the locking claw 4a of the other locking member 4 is also released), the light source unit 2 can be removed by pulling the light source unit 2 downward. . Since the release hole 11e is thus formed, the light source unit 2 can be easily removed.

  As representatively shown in FIG. 4, when power is supplied to the lighting device 3 in the installed state of the lighting fixture, the light emitting elements 22 are energized through the substrate 23, and each light emitting element 22 is lit. The light emitted from the light emitting element 22 is diffused through the translucent cover member 24 having diffusibility and is mainly emitted downward, and a part of the light is reflected by the surface of the side plate portion 11c. In addition, the ceiling surface C is irradiated. Thereby, the brightness feeling of illumination can be increased. Further, the heat generated from each light emitting element 22 is conducted from the back side of the substrate 23 to the mounting member 21, and further conducted from the second side wall 21 c of the mounting member 21 to the instrument body 1 to be radiated. Thereby, the temperature rise of the light emitting element 22 can be suppressed.

  As described above, according to the present embodiment, since the side plate portion 11c is integrally formed on the instrument body 1 having the housing recess 11, the number of parts can be reduced and labor saving in construction work can be achieved. it can. Moreover, since the predetermined | prescribed storage space is ensured in the accommodation recessed part 11, it becomes possible to arrange | position the lighting device 3 efficiently, Furthermore, by attaching the light source part 2 to the instrument main body 1, Parts such as the lighting device 3 are covered with the light source unit 2, and the appearance can be improved.

  In addition, since the lighting device 3 is disposed in the housing recess 11 without a gap, the appliance body 1 can be reinforced.

  Next, the lighting fixture which concerns on the 2nd Embodiment of this invention is demonstrated with reference to FIG.19 and FIG.20. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted.

  (Embodiment 1) As shown in FIG. 19, in this embodiment, the mounting position of the light emitting element 22 is protruded from the opening side end of the housing recess 11. That is, when the reference line A is a horizontal line connecting the opening side end portions of the housing recess 11, the light emitting element 22 is disposed so as to protrude from the reference line A to the front side. As a result, the light emitted from the light emitting element 22 is diffused through the translucent cover member 24 having diffusibility, is emitted downward, and is irradiated to the side plate portion 11c and the ceiling surface C. It is possible to increase the amount of light and increase the feeling of brightness.

  Further, in the present embodiment, the cover member 24 protrudes outward from the extended line B of the outline of the inclined surface that extends in the back surface direction of the side plate portion 11c. Therefore, the light emitted from the light emitting element 22 is diffused through the transmissive cover member 24 having diffusibility, and the amount of light irradiated to the side plate portion 11c and the ceiling surface C can be further increased. It becomes possible, and a feeling of brightness can be increased.

  In the present embodiment, either one of the configuration in which the light emitting element 22 protrudes to the front side from the reference line A or the configuration in which the cover member 24 protrudes outside the extension line B is selected. Also good.

  (Embodiment 2) As shown in FIG. 20, in this embodiment, a mountain-shaped convex portion 24b is formed on the inner surface side of the cover member 24. The diffusibility of the light emitted from the light emitting element 22 can be promoted by the convex portion 24b, and the amount of light applied to the side plate portion 11c and the ceiling surface C can be increased.

  Next, the lighting fixture which concerns on the 3rd Embodiment of this invention is demonstrated with reference to FIG. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted.

  In the present embodiment, the cover member 24 is formed so as to bulge to the front surface side, and the amount protruding outward from the inclined surface that expands in the back surface direction of the side plate portion 11c is increased. Therefore, with this configuration, the light emitted from the light emitting element 22 is diffused by being transmitted through the transmissive cover member 24 having diffusibility, and in particular, the light diffused in the bulging portion of the cover member 24 is Since it faces and irradiates the side plate part 11c and the ceiling surface C, it becomes possible to increase the brightness of the illumination.

  Next, the lighting fixture which concerns on the 4th Embodiment of this invention is demonstrated with reference to FIG.22 and FIG.23. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted.

  In this embodiment, the form from which 1st Embodiment differs in the attachment structure of the light source part 2 is shown. As shown in FIG. 22, in the mounting member 21, the other side facing the second side wall 21 c extends in the horizontal direction through the hole 11 h formed in the side wall 11 b of the housing recess 11, and the tip side A locking wall 21e having a hook portion 21f is formed on the top.

  According to such a structure, as shown in FIG. 23, when attaching the light source part 2 to the instrument main body 1, the hook part 21f of the locking wall 21e is hooked in the hole 11h, and the light source part 2 is suspended. Thus, the light source unit 2 can be attached by operating the light source unit 2 to rotate in the direction of the arrow shown in the drawing with the hook portion 21f as a fulcrum.

  Therefore, when attaching the light source part 2 to the instrument body 1, it is possible to prevent the light source part 2 from falling and to expect an effect of facilitating the mounting operation.

  Next, the lighting fixture which concerns on the 5th Embodiment of this invention is demonstrated with reference to FIG.24 and FIG.25. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted.

  In the present embodiment, the amount of protrusion of the light source unit 2 in the front side and back side directions can be changed with respect to the instrument main body 1. Thereby, the light shielding angle can be adjusted.

  The locking member 4 is provided with two-stage locking claws 4a1 and 4a2 having different positions in the front and back directions. The light source unit 2 is movable in the front-rear direction, and the attachment member 21 is engaged and held at a predetermined position by the locking claws 4a1 and 4a2.

  The state shown in FIG. 24 is a state in which the attachment member 21 is engaged with the front-side locking claw 4a1, and the light shielding angle is set small. By moving the light source unit 2 to the back side from this state and engaging the mounting member 21 with the back side locking claw 4a2, the light shielding angle can be set large.

  Therefore, according to the present embodiment, the light blocking angle can be adjusted according to the installation environment of the lighting fixture. In addition, the change of the protrusion amount of the light source unit 2 may be changed not only in two stages but also in multiple stages, and may be arbitrarily changed. Thereby, the adjustment range of the light shielding angle can be expanded.

  Next, the lighting fixture which concerns on the 6th Embodiment of this invention is demonstrated with reference to FIG. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted.

  In the present embodiment, the light source unit 2 is disposed so as to cover the opening side of the housing recess 11, but the cover member 24 of the light source unit 2 covers the opening side of the housing recess 11 so that there is no gap. It is the composition which becomes.

  Therefore, it is possible to suppress the occurrence of an optical dark portion due to the gap between the cover member 24 and the housing recess 11 on the opening side of the housing recess 11. Further, in this case, since the light source part 2 is removed from the instrument main body 1 for maintenance or the like, when the locking member 4 is released, there is no gap on the opening part side of the housing recess 11, so that it is formed on the side plate part 11 c. It is indispensable to insert a tool such as a screwdriver into the release hole 11e and release it.

  In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary of invention. For example, the light emitting element can be a solid light emitting element such as an LED or an organic EL.

  When the light emitting element is mounted on the substrate, the light emitting element may be mounted by a surface mounting method or the light emitting element may be directly mounted on the substrate. The number of light emitting elements mounted is not particularly limited.

  Moreover, although it is preferable that the side-plate part of an instrument main body has a function as a reflecting plate, it does not necessarily need to have this function.

DESCRIPTION OF SYMBOLS 1 ... Instrument main body, 2 ... Light source part, 3 ... Lighting apparatus, 4 ... Locking member, 11 ... Housing recessed part, 11b ... Side wall, 11c ... Side plate part, 21 ... Attachment member, 22 ... Light emitting element (LED), 23 ... Substrate, 24 ... Cover member

Claims (5)

A top plate portion having a mounting hole, a wall portion formed on both sides of the top plate portion, the elongated body having a a housing recess formed in the inner side of the top plate portion and the wall portion;
A light source part provided on the main body so as to cover the opening side of the housing recess;
A lighting device that converts alternating current from the alternating current power source into direct current and supplies direct current output to the light source;
A terminal block for electrically connecting the AC power source and the lighting device;
First attachable light source unit to the main body, and second attachment means; comprise a,
The light source part is an attachment surface, an attachment member having a side wall provided so as to rise in the back direction on both sides of the attachment surface, a substrate attached to a surface opposite to the surface on which the side wall of the attachment surface is provided, The light source unit includes a plurality of light emitting elements provided on the substrate and a cover member provided on the mounting member so as to cover the plurality of light emitting elements, and the light source portion includes a recess formed by the mounting surface and the side wall of the main body. It is attached to the main body so as to face the mounting hole on the top plate,
In the mounting state of the main body and the light source unit, the lighting device, the terminal block, and the first and second mounting means are disposed in a space formed by the housing recess and the light source unit, and the lighting device , the terminal block, and The mounting fixture is provided between the first mounting means and the second mounting means. The lighting device according to claim 1, wherein the cover member is arranged so that no gap is formed on the opening side of the housing recess , and at least a part thereof is positioned in the housing recess . The cover member has an internal space, and a part of the cover member is open along the longitudinal direction. The attachment member is such that the surface of the attachment surface on which the substrate is attached faces the internal space, and the outer surface of the side wall is the cover member. The lighting fixture according to claim 1, wherein the lighting fixture is provided in an opening of the cover member so as to contact the inner surface of the lighting device. The lighting device according to claim 3 , wherein the cover member has a pair of fitting portions along a longitudinal direction, and at least a part of the side wall of the mounting member is fitted into the fitting portion . The first and second attachment means are constituted by first and second engaging members and first and second attaching members, respectively, and the first and second engaging members are arranged in the accommodating recesses of the main body. The first and second mounting members are disposed in the light source unit, and the first mounting member is mounted on the first locking member, and the second mounting member is mounted on the second locking member. The lighting fixture as described in any one of Claims 1-4 characterized by the above-mentioned.

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