JP2017182934A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain a lighting fixture capable of easily attaching a light source module to a fixture body at high degree of adhesion.SOLUTION: A lighting fixture 100 includes a light source part 21 having a module substrate 22 with a light-emitting element, a fixture body 41 to which the light source part 21 is attached, and a first reflection part 23 configured to reflect light from the light source part 21. The first reflection part 23 has a substrate guide part 23c. The module substrate 22 has an engagement part 22a engaging with the substrate guide part 23c. By engaging the substrate guide part 23c and the engagement part 22a, the module substrate 22 is positioned to the reflection part 23. The module substrate 22 has a center part fixed to the fixture body 41 by a fixing member 29, and an outer peripheral edge part pressed to the fixture body 41 by one end of the first reflection part 23.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a lighting fixture.

  2. Description of the Related Art Conventionally, there has been known a lighting fixture in which a light source module in which a light source such as an LED chip is provided on a substrate is attached to the fixture body (for example, see Patent Document 1).

  The lighting fixture of Patent Document 1 applies a pressure to a fixture main body having a positioning portion for positioning a light source module, a cylindrical reflector that abuts the light source module so as to surround the daylighting opening, and a flange portion of the reflector. An elastic body is provided between the fixing member that comes into contact with the reflecting plate and the flange portion and the fixing member of the reflecting plate. The light source module is positioned by the positioning portion of the instrument body, and is held in close contact with the instrument body by the reflector.

JP 2014-194865 A

However, in the lighting fixture disclosed in Patent Document 1, when the light source module becomes large to some extent, only the vicinity of the end portion of the light source module is pressed, so that the vicinity of the central portion of the light source module and the fixture main body abut. It may be difficult. If the light source module cannot come into contact with the instrument main body, the heat generated from the light source module is not easily transmitted to the instrument main body, and it is difficult to dissipate heat from the instrument main body to the surroundings. If the degree of adhesion between the light source module and the fixture main body is insufficient, the heat generated from the light source module cannot be sufficiently dissipated and the heat dissipation performance required for the lighting fixture may not be ensured.
In addition, since the light source module is positioned using the positioning unit of the instrument body, the optical positional relationship between the reflector and the light source may not be appropriate when the light source module is unevenly distributed in the positioning unit.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to realize a lighting fixture in which a light source module can be easily attached to a fixture body with improved adhesion.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the lighting fixture disclosed in this application is
A light source unit having a module substrate with a light emitting element;
An instrument body to which the light source unit is attached;
A luminaire comprising a reflecting portion that reflects light from the light source portion,
The reflection part has a substrate guide part,
The module substrate has an engagement portion that engages with the substrate guide portion,
The module substrate is positioned with respect to the reflective portion by engaging the substrate guide portion and the engagement portion,
The module substrate has a central portion fixed to the instrument main body by a fixing member, and an outer peripheral edge pressed against the instrument main body by one end of the reflecting portion.

In the lighting fixture disclosed in the present application,
It is preferable that an elastic member in contact with the other end of the reflecting portion is disposed and the reflecting portion is pressed through the elastic member.

In the lighting fixture disclosed in the present application,
The board guide portion is fitted with the instrument body,
It is preferable that the board guide portion is fixed to the instrument body and the module substrate is positioned with respect to the instrument body by fitting the board guide portion to the instrument body.

In the lighting fixture disclosed in the present application,
It is preferable that at least one engaging portion is provided on an outer peripheral edge portion of the module substrate.

  According to the present invention, the degree of adhesion of the module substrate to the instrument body is fixed by fixing the central part of the module substrate to the instrument body by the fixing member and pressing the outer peripheral edge of the module board against the instrument body by one end of the reflecting part. Can be improved.

1 is a plan view showing an embedded lighting fixture according to an embodiment of the present invention. It is sectional drawing in the AA of FIG. 1, and sectional drawing which shows the state which attached the embedded lighting fixture to the attachment hole. Sectional drawing in the BB line of FIG. Sectional drawing in the CC line | wire of FIG. The perspective view which shows a 1st reflection part. The perspective view which shows a 2nd reflection part. The perspective view which shows an instrument main body. It is a figure which shows holding | suppressing packing, (a) is a top view, (b) is sectional drawing in the DD line | wire of (a). It is a figure which shows a panel packing, (a) is a top view, (b) is sectional drawing in the EE line of (a), (c) is a partially expanded sectional view of (b).

  An embedded lighting apparatus 100 that is an example of a lighting apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9. The embedded lighting device 100 is a downlight that is formed in a ceiling C that is a mounting surface as shown in FIG. 2, for example, embedded in a circular mounting hole H. Note that the lighting fixture according to the present invention is not limited to the embedded lighting fixture, but is a direct-mounted lighting fixture that is directly attached to a ceiling surface or the like, or a hanging type that is installed by being suspended from the ceiling surface or the like. It may be a lighting fixture. In the following description, the vertical direction of the embedded lighting device 100 will be described as the vertical direction (the vertical direction shown in FIG. 2) when the embedded lighting device 100 is installed on the ceiling C. A direction perpendicular to the vertical direction will be described as a radial direction. In the description of the present embodiment, a state in which the embedded lighting device 100 and the like are viewed from above is a plan view. A state in which the embedded lighting device 100 and the like are viewed from a direction orthogonal to the vertical direction is referred to as a side view. A state in which the cross-sectional shape of the embedded lighting device 100 or the like is viewed is referred to as a cross-sectional view.

  As shown in FIGS. 1 and 2, the embedded lighting device 100 mainly includes a lamp 11 and a power supply unit 51.

  The lamp 11 mainly includes a light source unit 21, a first reflection unit 23, a panel 24, a pressing packing 26, a second reflection unit 31, a panel packing 38, an instrument body 41, and an attachment spring 71.

  The light source unit 21 is a part that emits light toward the irradiation surface side of the embedded lighting fixture 100. As shown in FIG. 2, the light source unit 21 is provided in the light source arrangement unit 44 of the instrument main body 41 and includes a module substrate 22 including an LED element 25 as a light emitting element.

The module substrate 22 is an LED module in which a plurality of LED elements 25 that are point light sources are arranged in a circumferential direction on a substrate surface processed into a flat plate shape. The plurality of LED elements 25 are arranged so as to correspond to the openings 23 e of the first reflecting portion 23. The module substrate 22 is disposed in contact with the bottom surface 44a of the light source arrangement portion 44 of the instrument main body 41, and the central portion of the module substrate 22 is fixed to the fixing portion 44b of the light source arrangement portion 44 of the instrument main body 41 by a fixing member 29 such as a screw. Fixed. The module substrate 22 is pressed against the light source arrangement portion 44 (bottom surface 44 a) of the instrument main body 41 by the substrate holding portion 23 a that is the outer peripheral edge portion of the module substrate 22 that is one end of the first reflecting portion 23. The module substrate 22 is electrically connected to the power supply unit 51 by the electric wire 20. The LED element 25 generates heat when turned on. Heat generated from the LED element 25 is transmitted to the module substrate 22. The heat transmitted to the module substrate 22 is transmitted to the light source arrangement unit 44 because the module substrate 22 is in contact with the light source arrangement unit 44.
In the present embodiment, the central portion of the module substrate 22 is fixed by the fixing member 29, but is not particularly limited. For example, an arbitrary part in the light emitting region where the LED element 25 is arranged on the module substrate 22 may be fixed by a fixing member.

The module substrate 22 has a pair of engaging portions 22a that are cut out in an arc shape at opposite positions in the radial direction. The engaging portion 22 a engages with the substrate guide portion 23 c and positions the module substrate 22 with respect to the first reflecting portion 23.
In the case of the lighting fixture disclosed in Patent Document 1, when a light source module having an isometric view shape with a circular outer shape is used, the light source module rotates within the fixture body if the pressure applied by the reflector is insufficient. there's a possibility that. If the light source module having an isometric view is rotated and misaligned in the circumferential direction, tension may be applied to the wiring connecting the light source module and the power supply unit. The engaging portion 22a of the present embodiment is fixed so that the module substrate 22 does not rotate around the fixing member 29 by engaging with the substrate guide portion 23c.
In the present embodiment, the engaging portion 22a is formed in a shape cut out in an arc shape. However, the shape is not limited to this, and a shape cut out other than an arc shape, a circular through hole, or the like may be used.
In this embodiment, an LED element (surface mount type LED element) is used as the light source. However, the type of the light source is not limited to the LED element, and examples thereof include a COB type light emitting module and an organic EL element (OLED). But it is feasible.
Further, the module substrate 22 may be attached to the light source arrangement portion 44 via a heat conductive sheet (not shown) or heat radiation grease, and thereby higher heat radiation can be obtained.
In the present embodiment, the pair of engaging portions 22a is configured to correspond to the pair of substrate guide portions 23c, but is not particularly limited. For example, at least one engaging portion 22a is provided on the outer peripheral edge portion of the module substrate 22, and is configured to engage with the corresponding substrate guide portion 23c. It can position with respect to the reflection part 23, and can fix so that it may not rotate centering on the fixing member 29. FIG.

The first reflecting portion 23 is a shade member that reflects light from the plurality of LED elements 25 while separating the panel 24 and the module substrate 22 at a predetermined interval. The first reflecting portion 23 is formed of a resin material or the like. The first reflecting portion 23 mainly includes a substrate holding portion 23a, a peripheral edge portion 27, a panel holding portion 23b, and a substrate guide portion 23c. The substrate holding portion 23 a is for holding the outer peripheral edge portion of the module substrate 22, and is a step portion provided in the upper end of the first reflecting portion 23 in an annular shape in plan view and having a substantially L shape in cross section. The substrate holding part 23 a abuts on the outer peripheral edge of the module substrate 22 and holds the outer peripheral edge of the module substrate 22. The peripheral portion 27 is a shade-shaped portion extending downward from the substrate holding portion 23a. The panel holding part 23 b is a bowl-shaped part that is provided at the lower end of the first reflecting part 23 and extends outward in the radial direction. The panel holding portion 23 b is a portion that holds the upper surface of the panel flange portion 28 of the panel 24 via the pressing packing 26. The substrate guide portion 23c is a pair of rod-like portions protruding upward in the vicinity of both ends in the radial direction on the outer peripheral surface of the peripheral edge portion 27 (see FIG. 5). A convex claw portion 23d is formed at the tip (upper end) of the substrate guide portion 23c toward the radially inner side of the first reflecting portion 23. The claw portion 23d is inserted and fitted into a fitting recess 44c provided in the light source arrangement portion 44, and the claw portion 23d is locked to a claw locking portion (not shown) in the fitting recess 44c. As a result, the first reflecting portion 23 is positioned with respect to the instrument main body 41 and is fixed by fitting the substrate guide portion 23 c into the light source arrangement portion 44 of the instrument main body 41. As a result, the module substrate 22 is positioned with respect to the instrument body 41. A circular opening 23e is formed at the center of the upper end of the first reflecting portion 23, and a peripheral wall 27 extending downward from the opening 23e is formed in a slope shape that expands downward. The inner peripheral surface of the peripheral wall portion 27 is a reflective surface that reflects the light emitted from the LED element 25. The 1st reflection part 23 reflects the light which goes to the side among the light emitted from the LED element 25 with a reflective surface, and performs light distribution control so that it goes to the front. That is, the light reflected from the LED element 25 is reflected by the first reflecting part 23 formed with the reflection surface, and the light emitted from the LED element 25 is efficiently collected.
In addition, although the 1st reflection part 23 of this embodiment demonstrated what was formed in the slope shape which the surrounding wall part 27 spreads as it goes below, it is not limited to this. For example, the shape of the reflecting portion may be a parabolic shape that expands as the peripheral wall portion goes downward.

The panel 24 closes the opening 32 on the upper side of the second reflecting portion 31 and transmits and diffuses the light from the LED elements 25 arranged in the light source arrangement portion 44 of the instrument body 41 to form an irradiation surface. It is a member to do. The panel 24 is formed of a light-transmitting resin material or glass material. In the present embodiment, the panel 24 is formed using an acrylic resin. As shown in FIG. 2, the panel 24 is formed in a dome shape that has a circular shape in plan view and protrudes downward. The panel 24 includes a panel flange portion 28 having an annular shape in a plan view projecting outward in the radial direction at the lower peripheral edge portion. The panel 24 is positioned on the panel holding portion 34 at the upper end of the second reflecting portion 31 and the pressing gasket 26 is disposed on the upper surface of the panel flange portion 28, and the panel holding portion 34 at the upper end of the second reflecting portion 31. And the panel holding portion 23 b at the lower end of the first reflecting portion 23, and held at a position facing the LED element 25.
The shape of the panel 24 is not limited to a circular shape, and may be a polygon such as a quadrangle. Further, the shape is not limited to the dome shape projecting downward, but may be a shape projecting upward, a planar shape, or the like.

  As shown in FIG. 8, the presser packing 26 is an annular flat elastic member in plan view. The presser packing 26 has substantially the same size and the same shape as the upper end surface of the panel flange portion 28 in plan view. The holding packing 26 is sandwiched between the panel holding portion 23 b at the lower end of the first reflecting portion 23 and the panel holding portion 34 at the upper end of the second reflecting portion 31. That is, the holding packing 26 is inserted between the panel holding portion 23 b of the first reflecting portion 23 and the panel flange portion 28 of the panel 24.

The second reflecting portion 31 is a light source reflector having a shape opened downward in a bowl shape around the panel 24. As shown in FIGS. 2 and 6, the second reflecting portion 31 has an opening 32, a peripheral wall portion 33 having a substantially C-shape in cross section, a panel holding portion 34, and a flange portion 35. The second reflecting portion 31 is formed in a parabolic shape in which a circular opening 32 is formed at the center, and a peripheral wall 33 extending from the opening 32 extends downward. The inner peripheral surface of the peripheral wall portion 33 is a reflective surface that reflects light emitted from the LED element 25. The second reflecting portion 31 is formed using a resin material, a metal material, or the like. In the present embodiment, the second reflecting portion 31 is formed using a metal material such as aluminum. As for the 2nd reflection part 31, the upper surface side and the lower surface side are opening-formed in the cross-sectional shape. The panel holding part 34 is an L-shaped part provided in the upper end of the peripheral wall part 33 and holding the panel flange part 28 of the panel 24 in a sectional view. The panel holding portion 34 is formed with a packing arrangement portion 36 having a ring shape in plan view and a concave shape in cross section for positioning and arranging the panel packing 38. The panel 24 is positioned at the upper end of the second reflecting portion 31 by the panel flange portion 28 being locked to the panel holding portion 34.
Further, the second reflecting portion 31 has a pair of screw attachment portions 39 formed to protrude radially outward from the outer periphery of the panel holding portion 34. The screw attachment portion 39 is disposed at a position corresponding to the spring attachment portion 48 of the instrument main body 41, and the attachment spring 71 is attached by the screw 57 by overlapping the spring attachment portion 48 and the screw attachment portion 39. The second reflecting portion 31 can be assembled to the main body 41.
In addition, the planar view shape of the 2nd reflection part 31 may be polygons, such as a quadrangle | tetragon, not only circular shape, but the shape which can be attached to the opening shape of various attachment holes.

  The flange portion 35 is a flange portion that protrudes radially outward from the outer peripheral edge of the lower portion of the peripheral wall portion 33 and is formed in an annular shape. The flange portion 35 is a portion that covers the peripheral portion of the mounting hole H in a state where the embedded lighting device 100 is installed in the mounting hole H of the ceiling C. On the upper surface of the flange portion 35, when the second reflecting portion 31 is attached to the attachment hole H, an annular frame packing 37 in a plan view for closing the gap between the second reflecting portion 31 and the peripheral portion of the attachment hole H is provided. Is provided. The flange portion 35 covers the peripheral edge portion of the mounting hole H via the frame packing 37 on the lower surface side of the ceiling C.

As shown in FIG. 9, the panel packing 38 is an O-ring made of an elastic member such as a rubber material. On the upper part of the panel packing 38, there is a fin-shaped fin portion 38 a that extends obliquely outward from the radially inner portion of the panel packing 38. The panel packing 38 is arranged in the concave packing arrangement portion 36 of the second reflecting portion 31 with the fin portion 38a facing upward. When the panel 24 is disposed in the panel holding portion 34, the fin portion 38a of the panel packing 38 is in a lying state. As a result, the panel packing 38 is sealed between the panel flange portion 28 of the panel 24 and the panel holding portion 34 of the second reflecting portion 31 to ensure airtightness. Thereby, it is possible to prevent dust, insects, and the like from entering the interior of the lamp 11.
In the present embodiment, the pressing packing 26 and the panel packing 38 are provided separately, but they may be formed integrally.

  The instrument body 41 is formed of a metal material such as aluminum having a high thermal conductivity in order to improve the heat dissipation efficiency. That is, the instrument main body 41 has a function as a heat sink. The instrument main body 41 has a base portion 42, a radiation fin 43, a light source arrangement portion 44, a power supply attachment portion 45 to which the power supply portion 51 is attached, and a spring attachment portion 48 to which the attachment spring 71 is attached.

  The base 42 is a part that is substantially cylindrical with a bottom. The base part 42 has a disk-shaped upper plate part 42a at the upper part. In the upper part of the upper plate part 42a, a plurality of radiating fins 43, 43,... As shown in FIG. 2, the base portion 42 is formed with a light source placement portion 44 for placing the light source portion 21 in a concave shape.

  The heat radiating fins 43 are plate-shaped heat radiating members formed by projecting a plurality from the base 42. The heat generated from the light source unit 21 is transmitted to the entire instrument main body 41 via the base unit 42 (light source arrangement unit 44). The heat transmitted to the instrument body 41 is dissipated into the air.

  The power supply attachment portion 45 is formed on a side portion of the heat radiation fin 43. The power supply mounting part 45 has a screw hole into which a screw member can be screwed. The power supply attachment portion 45 is a portion to which the power supply portion 51 is attached by a screw 58 and supports the power supply portion 51. A space 46 having an open outer surface through which the electric wire 20 is passed is provided below the power supply attachment portion 45. A cover member 47 is fitted on the outer surface of the space 46. The space 46 has an opening 46a through which the electric wire 20 electrically connected to the module substrate 22 is inserted (see FIG. 4).

  The spring attachment portion 48 is a portion for attaching the attachment spring 71 to the instrument main body 41. The spring mounting portion 48 is formed so as to protrude radially outward from the lower end portion of the instrument main body 41, and a plurality of (two in this embodiment) are arranged so as to be substantially evenly arranged on the periphery of the base portion 42 of the instrument main body 41. ) Is provided. The spring mounting portion 48 is for attaching one end of the mounting spring 71 with the screw 57.

The attachment spring 71 is a fixing means for embedding and attaching the embedded lighting device 100 in the attachment hole H of the ceiling C. The attachment spring 71 is disposed on a spring attachment portion 48 that is substantially equally disposed on the periphery of the base portion 42. The attachment spring 71 is a plate spring formed by bending and bending a middle portion of a plate-like metal member such as a stainless steel material at a plurality of locations. The attachment spring 71 is a plate spring formed in a substantially V shape, and its base end abuts against the spring attachment portion 48 of the fixture body 41 and is fixed by a screw 57, and the free end is on the side of the lamp 11 side. It is to be extended. When the embedded lighting device 100 is installed in the mounting hole H of the ceiling C with the mounting spring 71 bent, the mounting spring 71 presses the periphery of the mounting hole H by the elastic force that the mounting spring 71 tries to spread. Thus, the ceiling C is sandwiched between the flange portion 35 and the embedded lighting device 100 is fixed to the ceiling C.
In addition, about the shape of an attachment spring, an attachment position, a number, etc., it is not limited to the thing of this embodiment.

  The power supply unit 51 is a power supply device for supplying power to the LED element 25 included in the light source unit 21 to light the LED element 25. The power supply unit 51 is attached to the power supply attachment unit 45 of the instrument main body 41 with screws 58. The power supply unit 51 accommodates a power supply circuit in which a plurality of electronic components are mounted on a printed wiring board processed into a rectangular shape in a box-shaped power supply case 52. The plurality of electronic components include components that generate heat during operation. Heat generated from the electronic component is transmitted to the power supply case 52. The power supply unit 51 converts an alternating current supplied from an external commercial power source into a predetermined direct current, and supplies the converted current to the plurality of LED elements 25 mounted on the module substrate 22. The power supply unit 51 is electrically connected to the terminal block 53 through wiring (not shown). The terminal block 53 is disposed on one side surface of the power supply unit 51 (power supply case 52). When the embedded lighting device 100 is attached to the ceiling C, the power supply unit 51 is connected to an external commercial power source by connecting the terminal block 53 and an external commercial power source (not shown) on the back side of the ceiling by wiring (not shown). Electrically connected. The power supply unit 51 and the module substrate 22 are electrically connected by the electric wire 20.

  According to the embedded lighting fixture 100 of the present embodiment described above, the central portion of the module substrate 22 is fixed to the fixing portion 44b of the light source arrangement portion 44 (bottom surface 44a) of the fixture main body 41 by the fixing member 29 and the module. The outer peripheral edge portion of the substrate 22 is pressed against the light source arrangement portion 44 (bottom surface 44 a) of the instrument main body 41 by the substrate holding portion 23 a which is one end of the first reflecting portion 23. Thereby, in the module substrate 22, the vicinity of the central portion thereof is pressed by the fixing member 29, and the outer peripheral edge portion of the module substrate 22 is pressed by the substrate holding portion 23 a of the first reflecting portion 23. Therefore, the adhesion degree of the module substrate 22 to the instrument main body 41 (bottom surface 44a) can be improved. Further, since only one fixing member 29 is used to attach the module substrate 22 to the instrument body 41, the module substrate 22 can be easily attached to the instrument body 41. In addition, the number of fixing members can be reduced rather than pressing the module substrate 22 by the substrate holding portion 23a and fixing the plurality of locations of the module substrate 22 to the instrument body 41 by the plurality of fixing members. Therefore, the number of parts can be reduced and the number of assembly steps can be reduced.

  According to the embedded lighting device 100 of the present embodiment, the pressing packing 26 that is an elastic member that contacts the panel holding portion 23b that is the other end of the first reflecting portion 23 is disposed, and the first packing is provided via the pressing packing 26. 1 The reflection part 23 is pressed. That is, the holding packing 26 is inserted between the first reflecting portion 23 and the panel 24. As a result, when the second reflecting portion 31 is assembled to the instrument body 41, the panel holding portion 34 presses the module substrate 22 via the panel 24, the pressing packing 26 and the first reflecting portion 23 as shown in FIG. Will do. In this case, the pressing force around the outer peripheral edge of the first reflecting portion 23 is evenly dispersed by the elastic force of the pressing packing 26, and the outer peripheral edge of the module substrate 22 can be pressed uniformly.

According to the embedded lighting device 100 of the present embodiment, the module substrate 22 is positioned with respect to the first reflecting portion 23 by the engagement portion 22a being engaged with the substrate guide portion 23c. As a result, the positional deviation between the module substrate 22 and the first reflecting portion 23 can be prevented, and the optical positional relationship between the module substrate 22 and the first reflecting portion 23 can be easily maintained appropriately.
Moreover, according to the embedded lighting fixture 100 of this embodiment, the board | substrate guide part 23c fits with the fixture main body 41, and is fixed. When the board guide portion 23 c is fitted into the fitting recess 44 c of the instrument body 41, the reflector 23 is positioned and fixed with respect to the instrument body 41. Since the module substrate 22 is positioned by the substrate guide portion 23 c, the module substrate 22 is positioned with respect to the instrument body 41 by fixing the first reflecting portion 23 to the instrument body 41. Accordingly, the module substrate 22 can be fixed to the instrument body 41 while being pressed at a desired position by the substrate holding portion 23a without being displaced.
Further, even when the central portion of the circular module substrate 22 is fixed by one fixing member 29 as in the present embodiment, the substrate guide portion 23c is engaged with the engaging portion 22a of the module substrate 22, The module substrate 22 can be prevented from rotating around the fixing member 29.

DESCRIPTION OF SYMBOLS 11 Lamp 21 Light source part 22 Module board | substrate 22a Engagement part 23 1st reflection part 23c Board | substrate guide part 26 Pressing packing (elastic member)
29 Fixing member 41 Instrument body 100 Recessed lighting fixture C Ceiling H Mounting hole

Claims (4)

A light source unit having a module substrate with a light emitting element;
An instrument body to which the light source unit is attached;
A luminaire comprising a reflecting portion that reflects light from the light source portion,
The reflection part has a substrate guide part,
The module substrate has an engagement portion that engages with the substrate guide portion,
The module substrate is positioned with respect to the reflecting portion by engaging the substrate guide portion and the engaging portion,
The module substrate is a lighting fixture in which a central portion is fixed to the fixture main body by a fixing member, and an outer peripheral edge is pressed against the fixture main body by one end of the reflection portion.   The lighting fixture of Claim 1 which arrange | positions the elastic member which contact | abuts the other end of the said reflection part, and presses the said reflection part via this elastic member. The board guide portion is fitted with the instrument body,
The said board | substrate guide part is fixed with respect to the said instrument main body, and the said module substrate is positioned with respect to the said instrument main body by fitting the said board | substrate guide part with the said instrument main body. Item 3. A lighting apparatus according to item 2.   The lighting device according to any one of claims 1 to 3, wherein at least one engaging portion is provided on an outer peripheral edge portion of the module substrate.