JP2018129178A - Light source unit and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress deterioration of brightness in a peripheral portion of a cover.SOLUTION: A light source unit 2 includes a cover 5 which has light transmissivity, and which is mounted on a mounting member 4 so as to cover an LED module 3. The mounting member 4 includes: a flat plate-like mounting plate 40 in which the LED module 3 is mounted on a surface (undersurface); and a side plate 41 protruding to the undersurface side from an edge of the mounting plate 40. The cover 5 is formed in a box-like shape having a bottom 50 opposing to the LED module 3, and a peripheral wall part 51 protruding toward the mounting plate 40 from a circumference of the bottom 50. The side plate 41 protrudes to height at which the LED module 3 is concealed when viewed from a direction (left/right direction and frontward/backward direction) orthogonal to a thickness direction (vertical direction) of the mounting plate 40.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a light source unit and a lighting fixture, and more particularly to a light source unit having a solid light source and a lighting fixture including the light source unit.

  As a conventional example, a light source unit and a lighting fixture described in Patent Document 1 are illustrated. The light source unit includes a box-shaped reflector having an open bottom surface, an LED module configured by mounting a large number of LEDs (Light Emitting Diodes) on a mounting substrate, and a large number of light diffused from each LED. And an optical block having a lens. The lighting fixture includes a light source unit, a frame that supports the light source unit, a panel that has translucency and closes a window hole of the frame, and a fixture main body to which the frame is detachably attached. The light emitted from each LED is diffused by the lens, passes through the panel, and is irradiated below the instrument body.

JP 2014-164879 A

  By the way, in the light source unit and the lighting fixture described in Patent Document 1, since a part of the light emitted from the LED module is blocked by the frame of the frame, it is compared with the brightness (light quantity) of the central portion of the panel (cover). The brightness of the surrounding area of the panel (cover) was likely to decrease.

  The objective of this invention is providing the light source unit and lighting fixture which can aim at suppression of the fall of the brightness of the peripheral part of a cover.

  A light source unit according to an aspect of the present invention includes a solid light source module configured by mounting one or more solid light sources on a mounting surface of a mounting substrate, and an attachment member to which the solid light source module is attached. The light source unit is translucent and includes a cover attached to the attachment member so as to cover the solid light source module. The mounting member includes a flat mounting plate on which the solid light source module is mounted on the surface, and a side plate that protrudes from the edge of the mounting plate toward the surface. The cover is formed in a box shape having a bottom portion facing the solid light source module and a peripheral wall portion projecting from a peripheral edge of the bottom portion toward the mounting plate. The side plate protrudes to a height at which the solid light source module is hidden when viewed from a direction orthogonal to the thickness direction of the mounting plate.

  The lighting fixture which concerns on 1 aspect of this invention has the said light source unit and the fixture main body which supports the said light source unit.

  The light source unit and the lighting fixture of the present invention have an effect that it is possible to suppress a decrease in brightness of the peripheral portion of the cover.

FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present invention. FIG. 2 is a side view of the luminaire described above. FIG. 3 is another side view of the same lighting fixture. FIG. 4 is an exploded perspective view of the luminaire described above. FIG. 5 is an exploded perspective view of the light source unit according to the embodiment of the present invention as viewed from below. FIG. 6 is an exploded perspective view of the light source unit as seen from above. FIG. 7 is a perspective view in which the cover of the light source unit is omitted. FIG. 8 is a cross-sectional view of the main parts of the light source unit and the lighting fixture.

  A light source unit and a lighting fixture according to an embodiment of the present invention will be described in detail with reference to the drawings. The luminaire 1 of this embodiment is an embedded luminaire that is embedded in a ceiling. The configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to design and the like as long as the effects of the present invention can be achieved. That is, the luminaire 1 is not limited to an embedded luminaire, and may be, for example, a directly attached luminaire directly attached to a ceiling.

  The lighting fixture 1 of this embodiment is provided with the light source unit 2 of this embodiment and the fixture main body 10, as shown in FIG.1 and FIG.4. However, in the following description, unless otherwise specified, the vertical direction, the front-rear direction, and the horizontal direction of the lighting fixture 1 and the light source unit 2 are defined in FIG.

  As shown in FIG. 4, the instrument body 10 has a rectangular parallelepiped (box-shaped) housing portion 11 having an open bottom surface and a truncated pyramid-shaped (rectangular tube-shaped) reflecting member 12 having an open top surface and a bottom surface. doing. The accommodating portion 11 includes a square bottom wall 110 and four rectangular side walls 111 protruding downward from four sides of the bottom wall 110. The bottom wall 110 has a plurality of insertion holes 1100 through which power supply lines for power feeding are inserted. The power supply line inserted through the insertion hole 1100 is electrically connected to the terminal block 13 attached to the lower surface of the bottom wall 110. Furthermore, the bottom wall 110 has a plurality of bolt insertion holes 1101 through which suspension bolts embedded in the building frame are inserted. The plurality of bolt insertion holes 1101 are provided in the bottom wall 110 so as to be aligned in a line in the left-right direction. It is preferable that the bottom wall 110 and the four side walls 111 of the accommodating part 11 are integrally formed by metal plates, such as a steel plate.

  The reflecting member 12 includes four reflecting plates 120, four fixing pieces 121 protruding upward from the upper ends of the reflecting plates 120, and a frame body 122 protruding in the front-rear direction and the left-right direction from the lower ends of the reflecting plates 120, respectively. (See FIG. 4). Each reflector 120 is formed in a trapezoidal shape. Each fixed piece 121 is formed in a trapezoidal shape. Each fixing piece 121 is coupled to one corresponding side wall 111 of the four side walls 111 of the accommodating portion 11. The frame body 122 is formed in a square frame shape and is connected to the lower ends of the four reflectors 120 (see FIGS. 2 and 3).

  As shown in FIGS. 5 and 6, the light source unit 2 includes two LED modules 3, an attachment member 4, a cover 5, a power supply unit 6, a wireless communication unit 7, and two attachments 8. ing.

  The attachment member 4 includes a square attachment plate 40 and four side plates 41 that protrude downward from the four sides of the attachment plate 40. However, it is preferable that the attachment plate 40 and the four side plates 41 are integrally formed by bending a metal plate such as a galvanized steel plate. Each of the four side plates 41 is formed in an elongated rectangular shape.

  Each of the two LED modules 3 is configured by mounting a large number of LEDs 30 on a mounting surface (lower surface) of a rectangular mounting substrate 31. Each LED 30 is, for example, a white LED for illumination that emits white light. The plurality of LEDs 30 are arranged in a grid pattern on the mounting surface of the mounting substrate 31 and are electrically connected to each other via wiring conductors (copper foil) formed on the mounting surface. Further, a receptacle connector 32 that is electrically connected to each LED 30 via a wiring conductor is mounted on the mounting surface of each mounting substrate 31. The receptacle connector 32 is detachably connected to a plug connector connected to an output line of the power supply unit 6 as will be described later. The two LED modules 3 are attached to the lower surface of the attachment plate 40 by screwing so that they are arranged at intervals in the left-right direction (see FIG. 7).

  The power supply unit 6 includes a power supply circuit configured by mounting electronic components on a printed wiring board 61, and a case 60 that accommodates the power supply circuit (see FIG. 6). The power supply circuit includes an input connector 62, a rectifier, a power factor correction circuit, a step-down DC / DC converter, an output connector 63, and the like. The input connector 62 is electrically connected to the terminal block 13 via an electric wire. The power supply circuit converts AC power input from the input connector 62 into DC power, and then outputs the converted DC power from the output connector 63 via an electric wire (output line). The DC power is supplied to each LED 30 of each LED module 3 through a plug connector and a receptacle connector 32 connected to the tip of the output line.

  The printed wiring board 61 is configured by forming a wiring conductor (copper foil) on the component surface of a long rectangular flat insulating substrate. So-called lead components such as an input connector 62, an output connector 63, a smoothing capacitor, and a choke coil are mounted on the surface of the printed wiring board. And the surface mounting component of the electronic components which comprise the power supply circuit is mounted in the solder surface of a printed wiring board. However, the input connector 62 is mounted on one end (left end) of the printed wiring board 61 in the longitudinal direction, and the output connector 63 is mounted on the other end (right end) of the printed wiring board 61 in the longitudinal direction. As shown in FIG. 6, the case 60 is formed in a long box shape from a metal plate. The case 60 accommodates the printed wiring board 61 so that the input connector 62 and the output connector 63 are exposed. The power supply unit 6 is screwed to the mounting plate 40 at the front end on the upper surface of the mounting plate 40 so that the longitudinal direction of the case 60 is aligned with the left-right direction (see FIG. 6).

  As shown in FIG. 6, the wireless communication unit 7 includes a synthetic resin housing 70, a signal cable 71, a plug connector 72, and the like. The wireless communication unit 7 is configured to obtain a control command from a wireless signal received by an antenna housed in the housing 70 (for example, a wireless signal using a 920 MHz band radio wave as a medium). The radio signal is transmitted from the transmitter and transmits a control command for turning on / off the lighting fixture 1 and / or dimming. The wireless communication unit 7 is configured to transmit a control command acquired from the wireless signal to the power supply circuit of the power supply unit 6 via the signal cable 71 and the plug connector 72. The plug connector 72 is electrically connected to a receptacle connector provided in the power supply unit 6. The power supply circuit of the power supply unit 6 is configured to turn on / off and dimm the LED module 3 by adjusting the DC power output from the output connector 63 in accordance with a control command transmitted from the wireless communication unit 7. ing.

  The wireless communication unit 7 is attached to the upper surface of the attachment plate 40 (see FIG. 6). The mounting plate 40 is provided with a hole 400 through which a part of the housing 70 of the wireless communication unit 7 (antenna accommodating portion 700 accommodating the antenna) is inserted (see FIG. 5). The housing 70 of the wireless communication unit 7 is fixed to the upper surface of the mounting plate 40 in a state where the antenna housing portion 700 is inserted through the hole 400. However, the hole 400 is located between the two LED modules 3 on the lower surface of the mounting plate 40. Therefore, the antenna accommodating portion 700 protrudes downward from between the two LED modules 3 on the lower surface of the mounting plate 40 (see FIG. 7).

  The two fixtures 8 have the same configuration. Each attachment 8 has an attachment spring 80 and an attachment fitting 85 for attaching the attachment spring 80 to the attachment plate 40 (see FIG. 6). The attachment spring 80 is constituted by a torsion coil spring having a coil portion 81, two arm portions (first arm portion 82 and second arm portion 83), and a hook piece 84. The mounting bracket 85 includes a flat base 850, a bridge-shaped support portion 851 provided on the base 850, and a cylindrical hooking portion 852 provided on the base 850. The support portion 851 supports the coil portion 81 so as to be rotatable around its axis. The hooking portion 852 is hooked by the hooking piece 84 of the attachment spring 80 (see FIG. 6). The mounting bracket 85 is screwed to both ends in the front-rear direction and the center in the left-right direction on the upper surface of the mounting plate 40 (see FIG. 6). The first arm portion 82 of each attachment spring 80 protrudes outside the attachment plate 40 (see FIG. 7). The second arm portion 83 of each attachment spring 80 is hooked on the attachment fitting 85 (see FIG. 6).

  As shown in FIG. 6, the cover 5 includes a square-shaped bottom portion 50, a peripheral wall portion 51 that rises upward from the periphery of the bottom portion 50, and four attachment portions 52 provided at the upper end of the peripheral wall portion 51. Yes. It is preferable that the bottom part 50, the surrounding wall part 51, and the four attachment parts 52 are integrally formed of a synthetic resin material having translucency such as an acrylic resin or a polycarbonate resin. Moreover, it is preferable that at least the bottom part 50 and the peripheral wall part 51 are configured so as to diffuse light by applying a graining process to the surfaces thereof. Alternatively, at least the bottom portion 50 and the peripheral wall portion 51 are preferably configured to diffuse light when a diffusing agent is mixed into the synthetic resin material. Each mounting portion 52 includes a rectangular protrusion 520 that protrudes in parallel with the bottom 50 from the upper end of the peripheral wall 51, an engagement piece 521 that is formed in a bowl shape and protrudes upward from the upper end of the peripheral wall 51, and the peripheral wall And a protrusion 522 protruding upward from the upper end of the portion 51.

  The cover 5 is attached to the attachment member 4 so as to accommodate the peripheral wall portion 51 inside the side plate 41 of the attachment member 4. Here, in the mounting plate 40 of the mounting member 4, one mounted portion 42 is provided at a position corresponding to the four mounting portions 52 of the cover 5, that is, in the longitudinal center of the four sides of the mounting plate 40. (See FIG. 5 and FIG. 6). Each attached portion 42 has an attachment hole 420 that penetrates the attachment plate 40 in the thickness direction, and a caulking piece 421 that protrudes upward from the edge of the attachment hole 420 along the side plate 41. The engagement pieces 521 and the protrusions 522 of each attachment portion 52 are inserted through the corresponding attachment holes 420 from the bottom to the top of the attachment plate 40 (see FIG. 8). Then, each of the caulking pieces 421 is caulked inward, whereby the engaging piece 521 is engaged with the caulking piece 421. That is, the cover 5 is attached to the attachment plate 40 of the attachment member 4 so as to house the peripheral wall portion 51 inside the side plate 41 (see FIG. 8).

  Next, the operation | work which constructs the lighting fixture 1 on a ceiling is demonstrated. The worker who performs the construction work first attaches the instrument body 10 to the suspension bolt by inserting the power line through the insertion hole 1100 of the bottom wall 110 and then tightening the nut to the suspension bolt inserted through the bolt insertion hole 1101. In addition, the operator arranges the instrument body 10 on the ceiling by connecting the power supply line drawn from the insertion hole 1100 to the terminal block 13.

  Subsequently, the operator inserts the first arm portion 82 of the rear attachment spring 80 into the insertion hole 123 provided in the rear fixing piece 121 and the hook hole 1111 provided in the rear side wall 111 ( (See FIG. 3). At this time, the worker hooks the first arm portion 82 of the rear mounting spring 80 on the temporary holding piece 124 protruding into the insertion hole 123 in the rear fixing piece 121 so that the light source unit 2 is mounted on the instrument body. 10 can be temporarily held. An operator performs the connection work of the terminal block 13 and the power supply unit 6 in a state where the light source unit 2 is temporarily held on the instrument body 10.

  Then, the operator inserts the first arm portion 82 of the front mounting spring 80 into the insertion hole 123 provided in the front fixing piece 121 and the hooking hole 1111 provided in the front side wall 111, and then the light source unit. 2 is lifted and accommodated in the accommodating portion 11. When the light source unit 2 is accommodated in the accommodating portion 11, the first arm portion 82 of each attachment spring 80 is hooked on the edge of the hooking hole 1111 of the side wall 111. As a result, the light source unit 2 is supported by the instrument body 10 by the spring force of the two attachment springs 80. Thereby, the construction work of the lighting fixture 1 is completed.

  When the two LED modules 3 are turned on by the DC power supplied from the power supply unit 6, the light emitted from each LED module 3 passes through the bottom 50 and the peripheral wall 51 of the cover 5, and the bottom 50 and the peripheral wall 51. The light is diffused and irradiated into the illumination space. Here, the peripheral wall portion 51 includes a portion projecting outward below the housing portion 11 (hereinafter may be referred to as a first circumferential wall portion 511) and a portion housed in the housing portion 11 (hereinafter referred to as a first wall). 2 (referred to as FIG. 5, FIG. 6 and FIG. 8). Of the light that passes through the second peripheral wall portion 512, the light that passes through the portion close to the upper end of the second peripheral wall portion 512 is blocked by the side plate 41 of the mounting member 4, and is therefore difficult to leak into the housing portion 11. In addition, light that passes through a portion near the upper end of the second peripheral wall portion 512 is reflected by the side surface (reflecting surface) of the side plate 41 and is irradiated to the illumination space. Therefore, it can suppress that the clearance 20 (refer FIG. 8) between the side plate 41 and the surrounding wall part 51 in the light source unit 2 becomes dark (a brightness | luminance falls). As a result, the light source unit 2 can suppress the decrease in brightness of the peripheral portion of the cover 5 and improve the light uniformity. Furthermore, since the lighting fixture 1 has accommodated the upper end part of the 2nd surrounding wall part 512 of the surrounding wall parts 51 in the light source unit 2 in the accommodating part 11, it is 2nd by hiding the side plate 41 in the accommodating part 11. Compared to the case where the entire peripheral wall portion 512 is exposed, it is possible to suppress a decrease in beauty. However, the light source unit 2 may be configured such that the peripheral wall portion 51 is disposed outside the side plate 41.

  Further, the cover 5 is configured such that the inclination angle θ2 with respect to the vertical direction of the second peripheral wall portion 512 is smaller than the inclination angle θ1 of the first peripheral wall portion 511 with respect to the thickness direction (vertical direction) of the mounting substrate 31 ( (See FIG. 8). When the surface of the peripheral wall portion 51 is subjected to a texture, it is necessary to give a draft to the peripheral wall portion 51. However, the distance between the peripheral wall portion 51 and the side wall 111 of the housing portion 11 increases as the inclination angle of the surface of the peripheral wall portion 51 increases in order to provide a draft angle. And since the clearance gap between the instrument main body 10 and the light source unit 2 becomes conspicuous, the beauty | look of the lighting fixture 1 may be impaired, so that the distance of the surrounding wall part 51 and the side wall 111 of the accommodating part 11 becomes large.

  Therefore, the peripheral wall 51 includes a first peripheral wall 511 on the side close to the bottom 50 (the side far from the mounting member 4) and a side far from the bottom 50 (the side close to the mounting member 4) with respect to the first peripheral wall 511. It is preferable to be divided into the second peripheral wall portion 512. If the inclination angle θ1 of the first peripheral wall portion 511 is an angle necessary for the draft, and the inclination angle θ2 of the second peripheral wall portion 512 is an angle smaller than the inclination angle θ1 of the first peripheral wall portion 511, the instrument body 10 The surface of the peripheral wall portion 51 can be easily subjected to embossing while making the gap between the light source unit 2 and the light source unit 2 inconspicuous.

  Here, since the linear expansion coefficient of the synthetic resin material forming the cover 5 is considerably higher than the linear expansion coefficient of the metal material forming the mounting member 4 (for example, about 6 to 7 times), the expanded cover 5 May hit the side plate 41. When the peripheral wall portion 51 of the expanded cover 5 hits the side plate 41, there is a possibility that abnormal noise is generated from the cover 5 or the cover 5 is plastically deformed. Therefore, in the light source unit 2, the gap 20 is provided between the peripheral wall portion 51 (second peripheral wall portion 512) and the side plate 41 along a direction (left-right direction and front-rear direction) orthogonal to the thickness direction of the mounting plate 40. It is preferable. It is preferable that the gap 20 is set to a size that does not allow at least the peripheral wall portion 51 of the expanded cover 5 to contact the side plate 41 or not receive excessive force from the side plate 41 even if the peripheral wall portion 51 contacts.

  As described above, the light source unit 2 includes a solid light source module (LED module 3) configured by mounting one or more solid light sources (LEDs 30) on the mounting surface of the mounting substrate 31, and an attachment member to which the LED module 3 is attached. 4. Further, the light source unit 2 includes a cover 5 that is translucent and is attached to the attachment member 4 so as to cover the LED module 3. The mounting member 4 includes a flat mounting plate 40 on which the LED module 3 is mounted on the front surface (lower surface), and a side plate 41 that protrudes from the edge of the mounting plate 40 toward the lower surface. The cover 5 is formed in a box shape having a bottom portion 50 that faces the LED module 3 and a peripheral wall portion 51 that protrudes from the periphery of the bottom portion 50 toward the mounting plate 40. The side plate 41 protrudes to a height at which the LED module 3 is hidden when viewed from the direction (left-right direction and front-rear direction) orthogonal to the thickness direction (up-down direction) of the mounting plate 40.

  Since the light source unit 2 is configured as described above, a part of light emitted from the LED module 3 and transmitted through the peripheral wall portion 51 is reflected on the side plate 41, thereby reducing the brightness of the peripheral portion of the cover 5. Can be suppressed.

  In the light source unit 2, it is preferable that the peripheral wall portion 51 is disposed between the LED module 3 and the side plate 41 when viewed from the direction orthogonal to the thickness direction of the mounting plate 40.

  If the light source unit 2 is configured as described above, the peripheral wall 51 can be protected by the side plate 41 by disposing the peripheral wall 51 inside the side plate 41.

  In the light source unit 2, it is preferable that the peripheral wall portion 51 includes a first peripheral wall portion 511 and a second peripheral wall portion 512 that are arranged along the thickness direction of the mounting plate 40. It is preferable that the second peripheral wall portion 512 is located near the mounting plate 40 with respect to the first peripheral wall portion 511. It is preferable that the 1st surrounding wall part 511 and the 2nd surrounding wall part 512 incline so that it may approach the LED module 3 as it leaves | separates from the attachment board 40 along the thickness direction of the attachment board 40. As shown in FIG. The angle θ2 at which the second peripheral wall portion 512 is inclined is preferably smaller than the angle θ1 at which the first peripheral wall portion 511 is inclined (θ2 <θ1).

  If the light source unit 2 is configured as described above, the surface of the peripheral wall portion 51 can be easily textured while making the gap with the instrument body 10 inconspicuous.

  The light source unit 2 preferably includes a metal mounting member 4 and a synthetic resin cover 5. It is preferable that a gap 20 is provided between the peripheral wall portion 51 and the side plate 41 along the direction orthogonal to the thickness direction of the mounting plate 40.

  If the light source unit 2 is configured as described above, the peripheral wall portion 51 of the expanded cover 5 can be made difficult to hit the side plate 41.

  As described above, the lighting fixture 1 includes the light source unit 2 and the fixture body 10 that supports the light source unit 2.

  Since the luminaire 1 is configured as described above, a part of the light emitted from the LED module 3 and transmitted through the peripheral wall portion 51 is reflected on the side plate 41, thereby reducing the brightness of the peripheral portion of the cover 5. Can be suppressed.

  In the lighting fixture 1, the fixture main body 10 preferably includes a box-shaped accommodation portion 11 having one surface (lower surface) opened, and a reflecting member 12 protruding from the edge of the lower surface of the accommodation portion 11. The light source unit 2 is supported by the instrument main body 10 so that the side plate 41 is housed in the housing portion 11 and at least a part of the peripheral wall portion 51 protrudes from the lower surface (of the housing portion 11) to the outside of the housing portion 11. It is preferable.

  If the lighting fixture 1 is comprised as mentioned above, by suppressing the side plate 41 of the attachment member 4 in the accommodating part 11 of the fixture main body 10, compared with the case where the whole surrounding wall part 51 is exposed, the fall of the beauty | look is suppressed. be able to.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Light source unit 3 LED module (solid light source module)
4 Mounting member 5 Cover 10 Instrument body 11 Housing portion 12 Reflecting member 20 Gap 30 LED (Solid light source)
31 mounting substrate 40 mounting plate 41 side plate 50 bottom 51 peripheral wall 511 first peripheral wall 512 second peripheral wall

Claims (6)

A solid light source module configured by mounting one or more solid light sources on the mounting surface of the mounting substrate;
An attachment member to which the solid state light source module is attached;
A cover that has translucency and is attached to the attachment member so as to cover the solid-state light source module;
The mounting member is
A flat mounting plate on which the solid light source module is mounted on the surface;
A side plate protruding from the edge of the mounting plate to the surface side;
The cover is
A bottom portion facing the solid state light source module;
It is formed in a box shape having a peripheral wall portion protruding toward the mounting plate from the periphery of the bottom portion,
The side plate is
A light source unit that protrudes to a height at which the solid light source module is hidden when viewed from a direction orthogonal to the thickness direction of the mounting plate. The peripheral wall portion is
2. The light source unit according to claim 1, wherein the light source unit is disposed between the solid light source module and the side plate as viewed from a direction orthogonal to a thickness direction of the mounting plate. The peripheral wall portion is
A first peripheral wall portion and a second peripheral wall portion arranged along the thickness direction of the mounting plate;
The second peripheral wall portion is in a position close to the mounting plate with respect to the first peripheral wall portion;
The first peripheral wall portion and the second peripheral wall portion are inclined so as to approach the solid-state light source module as they move away from the mounting plate along the thickness direction of the mounting plate.
The light source unit according to claim 1, wherein an angle at which the second peripheral wall portion is inclined is smaller than an angle at which the first peripheral wall portion is inclined. The mounting member made of metal;
A cover made of synthetic resin,
The light source unit according to claim 1, wherein a gap is provided between the peripheral wall portion and the side plate along a direction orthogonal to the thickness direction of the mounting plate. . The light source unit according to any one of claims 1 to 4,
A lighting fixture comprising: a fixture body that supports the light source unit. The instrument body is
A box-shaped housing with an opening on one side;
A reflective member protruding from an edge of the one surface of the accommodating portion,
The light source unit is
The said side plate is accommodated in the said accommodating part, and at least one part of the said surrounding wall part is supported by the said instrument main body so that it may protrude outside the said accommodating part from the said surface. lighting equipment.

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