JP7131865B2 - Fixtures, fixture sets and lighting fixtures using them - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fixture, a fixture set, and a lighting fixture using the same.

Focusing on the power saving and long life of LEDs (Light Emitting Diodes), a plurality of lighting fixtures using LEDs have been proposed. For example, Patent Literature 1 discloses a thin lighting fixture that includes a light source, a power supply unit that supplies power to the light source, and a holder that holds the light source and the power supply unit.

JP 2017-117809 A

In the lighting fixture of Patent Document 1, an LED mounting substrate and a translucent cover covering the entire light emitting surface of the lighting fixture are attached to a main body (chassis). However, in the embodiment of the lighting fixture of Patent Document 1, processing for attaching the LED mounting substrate to the main body is required, and each LED element is covered with a diffuser lens. There was a drawback that fixtures were also required and the configuration of the lighting fixtures was complicated.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fixture that can simplify the configuration of a lighting fixture, a fixture set, and a lighting fixture using the same.

In order to achieve the above object, the fixture of the present invention is a fixture for a lighting fixture, comprising:
including a holding portion and an engaging portion;
The holding part can hold at least part of the light source of the lighting fixture,
The engaging portion is capable of engaging with an inner convex portion of a cover member that covers the light emission direction of the lighting fixture so that the cover member can be attached to the lighting fixture main body.

The fixture set of the present invention includes at least two of the fixtures of the present invention.

The lighting fixture of the present invention is
Including a main body, a power supply, a light source, a fixture, and a cover member,
The power supply device, the light source, the mounting fixture, and the cover member are arranged on the light emitting surface side of the main body,
The power supply device is connectable to an external power supply,
The power supply device and the light source are electrically connected, and an inner protrusion is provided inside the cover member,
wherein the fixture comprises at least one fixture of the present invention;
At least part of the light source is held by the holding portion of the fixture,
The inner convex portion of the cover member is engaged with the engaging portion of the mounting portion.

According to the present invention, the configuration of the lighting fixture can be simplified by adopting the fixture.

FIG. 1(A) is a perspective view of a fixture of Embodiment 1, and FIG. 1(B) is a partial cross-sectional view of a lighting fixture using the fixture. FIG. 2(A) is a top view of the fixture of Embodiment 2, FIG. 2(B1) is a perspective view of the fixture with the holder side of the fixture facing forward, and FIG. It is the perspective view which made the engaging part side of the fixture the near side, and the same figure (C) is a fragmentary sectional view of the lighting fixture which uses the said fixture. FIG. 3(A) is a top view of the fixture of Embodiment 3, FIG. 3(B) is a perspective view of the fixture, and FIG. 3(C) is a lighting fixture using the fixture. is a partial cross-sectional view of the. FIG. 4 is a perspective view of a fixture of Embodiment 4. FIG. 5 is a perspective view of a fixture according to Embodiment 5. FIG. FIG. 6(A) is an exploded perspective view of a lighting fixture using the fixture of Embodiment 6, and FIG. 6(B) is a diagram showing a state in which the lighting fixture is attached to the ceiling. FIG. 7(A) is a top view showing a state in which an LED mounting board is held by three fixtures according to Embodiments 1 to 5, and FIG. FIG. 10 is a top view showing a state in which FIG. 8(A) is a perspective view of a fixture of Embodiment 7, and FIG. 8(B) is a top view of the fixture. FIG. 9 is an exploded perspective view of the lighting fixture of Embodiment 8. FIG. FIG. 10(A) is a cross-sectional view of the luminaire of Embodiment 9, and FIG. 10(B) is an enlarged view of the X section of FIG. 10(A).

Next, an embodiment of the present invention will be described. In addition, this invention is not limited to the following embodiment. In addition, in the following figures, the same reference numerals are given to the same parts. Also, the descriptions of the respective embodiments can be referred to each other's description unless otherwise specified. Furthermore, the configuration of each embodiment can be combined unless otherwise specified. In addition, the lighting fixture and light diffusion cover of the present invention can be applied to, for example, a ceiling light that is attached to an adapter placed on the ceiling, a pendant that is suspended from the ceiling, and various lighting fixtures such as street lights. can be done.

[Embodiment 1]
1(A) and (B) show an example of a fixture according to Embodiment 1 of the present invention. The fixture 1a shown in FIG. 1A includes a holding portion 11 and an engaging portion 12. The holding part 11 is formed of a plate-like member, and can hold at least part of a light source (for example, a light-emitting element mounting board) on the upper surface of the plate-like member in FIG. The plate-shaped holding portion 11 is connected to the plate-shaped support member 14 in an inverted L shape at the right end in the figure. The engaging portion 12 includes a plate-like ceiling portion 121 and a plate-like side wall portion 122, which are joined together in an inverted L shape. A housing space 123 is formed between the plate-shaped ceiling portion 121 and the plate-shaped side wall portion 122 . The supporting member 14 and the side wall portion 122 are connected to the plate-like connecting member 13 at their downward ends in the figure. The connecting member 13 may function as a fixing portion for fixing the fixture 1a to the main body of the lighting fixture, but it is not limited to this, and may be connected to the main body of the lighting fixture by means other than the connecting member 13 . (B) of the same figure shows a state in which the fixture of (A) of the same figure is used. In the example of FIG. 2B, the light source 2 has a light emitting element 22 (for example, an LED or the like) mounted on the light irradiation surface of the substrate 21 . In the example of FIG. 1B, the cover member 3 has an inner protrusion 31 formed at the end of the cover body 32 (the downward end in the drawing). As shown in FIG. 1B, the fixture 1a is fixed to a portion of the light-irradiating surface of the main body 4 of the lighting fixture by means of a connecting member 13, and a portion of the light source 2 is mounted on a plate-shaped holding portion 11. , and the cover member 3 is attached to the main body 4 of the lighting fixture by accommodating the inner convex portion 31 in the accommodation space 123 of the engaging portion 12 .

In the present invention, the material of the fixture may be, for example, metal or resin. Examples of such metal materials include colored steel plates, galvanized steel plates, and stainless steel plates for springs. Examples of resin materials include PP (polypropylene) and PBT (polybutylene terephthalate). .

In the present invention, the light source is not particularly limited, but includes, for example, a light emitting element mounted on the light irradiation surface of the substrate. Examples of the light emitting device include LEDs and organic EL (Organic Electro-Luminescence).

In the present invention, the cover member is also called a "globe" and covers the light irradiation surface of the lighting fixture. The cover member is made of a translucent material, and may be wholly or partially milky white to impart a light scattering function. The material of the cover member is not particularly limited, and examples thereof include acrylic such as PMMA (polymethyl methacrylate), PC (polycarbonate), PS (polystyrene) and other resins.

[Embodiment 2]
2(A), (B1), (B2) and (C) show an example of a fixture according to Embodiment 2 of the present invention. FIG. 1(C) is a cross-sectional view seen from the AA' direction of FIG. 1(B1). As shown in the top view of FIG. 2(A), the perspective view of FIG. 1b, a leaf spring-like first elastic protrusion 124 is formed on the housing space 123 side of the side wall 122 of the engaging portion 12 so as to include one end of the side where the side wall 122 and the ceiling 121 are in contact. , a stop wall 126 protrudes toward the accommodation space 123 from a side different from the side where both the side wall portion 122 and the ceiling portion 121 are in contact with each other; As shown in FIG. 4C, when a stopper protrusion 311 further protrudes from the inner protrusion 31 of the cover member, when the cover member is attached, the inner protrusion 31 of the cover member is attached to the engaging portion 12 . When the first elastic projection 124 comes into contact with the stopper projection 311, the first elastic projection 124 is deformed and turned into the stopper projection. Rotation of the cover member is enabled so that the portion 311 climbs over the first elastic projection 124, and the stopper projection 311 abuts against the stop wall 126 beyond it to stop the rotation of the cover member. In addition, when the cover member is removed, the rotation in the direction of the upward arrow in FIG. . In this embodiment, the inner protrusion 31 and the stopper protrusion 311 of the cover member are separately configured. It is also possible to configure it as a part. With such a form, the configuration of the cover member can be further simplified.

In the present invention, the shape and material of the first elastic protrusion are not particularly limited, and it may be formed of an elastic member such as rubber, for example, in addition to the plate spring shape.

[Embodiment 3]
3(A), (B) and (C) show an example of a fixture according to Embodiment 3 of the present invention. FIG. 1(C) is a cross-sectional view taken along line BB′ of FIG. 1(B). As shown in the top view of FIG. 3A and the perspective view of FIG. A projecting portion 120 is formed on the housing space 123 side of the portion 125, and the plate spring portion 125 and the projecting portion 120 form a second elastic projecting portion. . Then, as shown in the cross-sectional view of FIG. 4C, when the inner convex portion 31 of the cover member is arranged in the housing space 123 of the engaging portion 12, the second spring formed from the plate spring portion 125 and the projection portion 120 is arranged. , the inner convex portion 31 of the cover member is pressed against the main body 4 side and fixed as indicated by the arrow in FIG. 1(C). This pressing by pressure can prevent a gap from being generated between the cover member and the main body 4, and the intrusion of insects, dust, etc. from the outside into the cover member, etc. can be prevented with a simple structure without using an insect-proof member separately. can be prevented.

In the present invention, the shape and material of the second elastic protrusion are not particularly limited, and it may be formed of an elastic member such as rubber, for example, in addition to the plate spring shape.

[Embodiment 4]
The perspective view of FIG. 4 shows an example of a fixture according to Embodiment 4 of the present invention. As shown in the figure, in the fixture 1d, as in the second embodiment, a first elastic protrusion 124 is formed on the side wall 122 of the engaging portion 12, and the side where the side wall 122 and the ceiling 121 are in contact with each other. A stop wall (not shown in FIG. 4) protrudes toward the housing space 123 from a side different from the side where both the side wall portion 122 and the ceiling portion 121 are in contact so as to include one end of the stop wall (not shown in FIG. 4), similar to the third embodiment. Secondly, a second elastic protrusion (a plate spring portion 125 and a protrusion 120) is formed on the ceiling portion 121 of the engaging portion 12, and other configurations are the same as those of the first embodiment.

[Embodiment 5]
The perspective view of FIG. 5 shows an example of a fixture according to Embodiment 5 of the present invention. As shown in the figure, in the fixture 1e, a convex guide portion 111 is formed on the light irradiation surface side of the plate-shaped holding portion 11 so as to protrude in the light irradiation direction and extend in a gentle arc shape. The configuration other than this is the same as that of the first embodiment. When the light source is mounted on the light irradiation surface side of the plate-shaped holding portion 11 , the convex guide portion 111 can guide the mounting position of part of the light source by the side wall of the convex guide portion 111 . The convex guide portion 111 is suitable for guiding an arc-shaped light source (substrate).

[Embodiment 6]
FIG. 6(A) is an exploded perspective view of a lighting fixture according to Embodiment 6 of the present invention. As shown in the figure, the lighting fixture of Embodiment 6 comprises a main body 4 , a power supply device 5 , a light source 2 , a fixture 1 , a light diffusion cover 6 and a cover member 3 . The light source 2 has a plurality of light emitting elements (for example, LEDs) arranged on a circular substrate with a circular opening formed in the center. The substrate may be circular as a whole by connecting a plurality of substrates. As the substrate, for example, a substrate made of a flat plate made of glass epoxy resin (FR-4) which is an insulating material, and having a wiring pattern formed on the surface side by silver foil can be used. A white resist layer acting as a reflective layer may be applied on the wiring pattern, that is, on the surface of the substrate. As the material of the substrate, when an insulating material is used, a ceramic material, a synthetic resin material, or the like can be applied in addition to the glass epoxy resin (FR-4). Further, when the substrate is made of metal, a base substrate or the like having an insulating layer laminated on one surface of a base plate such as aluminum having good thermal conductivity and excellent heat dissipation can be applied. The light emitting device may be, for example, a surface-mounted LED package. For example, the LED packages are mounted in a plurality of rows (three rows in this embodiment) in a substantially circular shape in the circumferential direction of the substrate. Further, the LED packages may be of neutral white color and incandescent color, and may be arranged alternately, and adjacent light emitting elements in each row may be arranged at approximately equal intervals. By adjusting the current flowing through the daylight white and light bulb color LED packages, it is possible to adjust the colors. Note that the light emitting elements do not necessarily have to be mounted in a plurality of rows, and may be mounted in one row along the circumferential direction of the substrate, for example. The number of columns and number of the light emitting elements can be appropriately set according to, for example, the desired output. The LED package is composed of, for example, an LED chip arranged on a base made of ceramics or synthetic resin, and translucent resin for molding such as epoxy resin or silicone resin that seals the LED chip. may be The LED chip is, for example, a blue LED chip that emits blue light. A phosphor is mixed in the translucent resin so as to enable emission of daylight white or incandescent light. As for the LED, an LED chip may be directly mounted on the substrate, or a cannonball-shaped LED may be mounted, and the mounting method and form are not particularly limited. The fixture 1 is the fixture 1e of the fifth embodiment. In the lighting fixture of Embodiment 6, a power supply device 5 , a light source 2 , a fixture 1 , a light diffusion cover 6 , and a cover member 3 are arranged on the light exit surface side of the main body 4 . The power supply device 5 can be connected to an external power source, and the power source device 5 and the light source 2 are electrically connected to supply electricity from the external power source to the light source (for example, the LED on the substrate). The power supply device 5 includes, for example, a rectifier circuit that rectifies current supplied from an external power supply such as AC 100 V, a transformer that converts the rectified voltage into a predetermined voltage, a constant current supply circuit that supplies a constant current to the light source 2, and the like. Prepare. The light diffusion cover 6 is arranged so as to cover the light irradiation surface of the substrate of the light source 2 . The substantially circular cover member 3 has a cover body, and a plurality of substantially L-shaped inner projections extending inward are provided in the inner end of the cover member 3 in the circumferential direction. A part of the substrate of the light source 2 is held (mounted) by the holding portion of the fixture 1 , and the inner protrusion of the cover member 3 is engaged with the engaging portion of the fixture 1 .

The main body 4 is a member also called a "chassis", and is formed in a circular shape from a flat plate of a metal material such as a cold-rolled steel plate, and has a circular opening in the center. The body 4 can, for example, be fitted with an adapter for mounting the luminaire on the ceiling. For example, a conventionally known adapter can be used. An example of such an adapter has a flat cylindrical shape, and has a hooking blade on one end side that engages with a hooking blade engagement hole of an existing rectangular hooking ceiling body placed on the ceiling of a building. I can give you something. The adapter may also have a connector that connects to the power supply 5 . The hooking sealing body and the adapter are electrically and mechanically joined by engaging the hooking blade engaging hole and the hooking blade. If you use an adapter, you can install lighting equipment with a small gap between the ceiling and the ceiling. FIG. 6(B) shows a state in which the lighting fixture of Embodiment 6 is attached to the ceiling 7 .

The light diffusion cover 6 covers the light source 2, for example, it diffuses linear light from an LED or the like so that light can be emitted in all directions. The light diffusion cover 6 is made of, for example, milky-white resin. Examples of the resin include acrylic such as PMMA (polymethyl methacrylate), PC (polycarbonate), and PS (polystyrene).

In FIG. 6A, the power supply device 5 is arranged in a recess formed in the main body 4 under the light source 2 and covered with the light diffusion cover 6 . According to this aspect, even when the cover member 3 is removed, the light diffusion cover 6 prevents the power supply device 5 from being exposed to the outside. We can provide lighting fixtures with excellent performance.

7(A) and (B) show how the fixture 1 is used to hold the light source 2 (the LED or the like is mounted on the substrate).

FIG. 7A shows a state in which three fixtures 1 are used. In the case of FIG. 4A, if at least one fixture 1, for example, the fixture 1b of the second embodiment is used, it is possible to stop the rotation of the cover member. In addition, in the case of FIG. 4A, if the mounting fixture 1c of the third embodiment is used as the three mounting fixtures 1, the cover member can be evenly pressurized and pressed against the main body, preventing insects, dust, etc. from inside. intrusion can be effectively prevented.

FIG. 7B shows a state in which six fixtures 1 are used. In the case of FIG. 4B, if at least one fixture 1, for example, the fixture 1b of the second embodiment is used, it is possible to stop the rotation of the cover member. In the case of FIG. 1B, if the mounting fixture 1c of the third embodiment is used as three or six mounting fixtures 1, the cover member can be evenly pressurized and pressed against the main body, preventing insects and dust. Intrusion can be effectively prevented. The number of fixtures is not limited to three or six, and by increasing or decreasing the number as necessary, it is possible to correspond to various types of lighting fixtures.

[Embodiment 7]
The perspective view of FIG. 8(A) and the top view of FIG. 8(B) show an example of a fixture according to Embodiment 7 of the present invention. As shown in the figure, the fixture 1f of the seventh embodiment has a convex shape that protrudes in the light irradiation direction and is bent in the middle and extends in a straight line on the light irradiation surface side of the plate-shaped holding portion 11. A guide portion 111 is formed, and other configurations are the same as those of the fourth embodiment. When the light source is mounted on the light irradiation surface side of the plate-shaped holding portion 11 , the convex guide portion 111 can guide the mounting position of part of the light source by the side wall of the convex guide portion 111 . The convex guide portion 111 is suitable for guiding a polygonal light source (substrate) having circumferential corners.

[Embodiment 8]
FIG. 9 is an exploded perspective view showing an example of a lighting fixture according to Embodiment 8 of the present invention. As shown in the figure, the light source 2 has a circular opening in the center and has a plurality of light emitting elements (for example, LEDs) mounted on a substantially rectangular substrate. The holding portion 1f has the same configuration as the lighting fixture of Embodiment 6 except that a convex guide portion is formed by bending in the middle and extending linearly.

[Embodiment 9]
10(A) and (B) show an example of a lighting fixture according to Embodiment 9 of the present invention. FIG. 10(A) is a cross-sectional view of the lighting fixture of Embodiment 9, and FIG. 10(B) is an enlarged view of the X section of FIG. 10(A). As shown in Figs. A diffusion cover receiving portion is provided, and an end portion of the light diffusion cover 6 is received therein. According to such a form, the diffusion cover 6 can be attached to the main body with the fixture 1, which further simplifies the configuration of the lighting fixture. In addition, as shown in FIGS. 11A and 11B, in the lighting fixture of the ninth embodiment, at least one portion of the light source 2 (substrate 21) mounted on the plate-shaped holding portion 11 is mounted on the light emitting side. portion is in contact with a portion of the light diffusion cover 6 and fixed to the holding portion 11 . According to such a form, the light source 2 can be fixed with a simple structure, and the configuration of the lighting fixture can be further simplified.

Although the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

Some or all of the above embodiments may also be described in the following additional remarks, but are not limited to the following.
(Appendix 1)
including a holding portion and an engaging portion;
The holding part can hold at least part of the light source of the lighting fixture,
A fitting for a lighting fixture, wherein the engaging portion engages with an inner convex portion of a cover member that covers the entire surface of the lighting fixture in an emission direction so that the cover member can be attached to the lighting fixture main body. .
(Appendix 2)
The engaging portion includes a side wall portion and a ceiling portion,
A housing space is formed between the side wall portion and the ceiling portion,
An inner projection of the cover member can be accommodated in the accommodation space, and the cover member can be attached to the lighting fixture main body by engaging the ceiling and the inner projection of the cover member. A fixture for a luminaire according to claim 1, characterized in that:
(Appendix 3)
the engaging portion includes a first elastic projection and a stop wall;
The first elastic protrusion is arranged on the side wall on the accommodation space side,
The stop wall protrudes toward the accommodation space from a side different from the side where both the side wall and the ceiling are in contact, so as to include one end of the side where the side wall and the ceiling are in contact. A fixture for a luminaire according to appendix 2, characterized in that:
(Appendix 4)
3. The fixture for lighting equipment according to appendix 3, wherein the first elastic protrusion is a leaf spring.
(Appendix 5)
the engaging portion includes a second elastic protrusion,
5. The fixture for a lighting fixture according to any one of appendices 2 to 4, wherein the second elastic protrusion is arranged on the ceiling on the accommodation space side.
(Appendix 6)
6. The fixture for a lighting fixture according to appendix 5, wherein the second elastic protrusion is a leaf spring.
(Appendix 7)
7. The fixture for a lighting fixture according to any one of appendices 1 to 6, wherein the holding part includes a mounting base part for mounting the light source.
(Appendix 8)
the holding portion includes a convex guide portion protruding in the light irradiation direction of the mounting base portion;
8. The fixture for a lighting fixture according to appendix 7, wherein the convex guide portion can guide a mounting position of a part of the light source by a side wall of the convex guide portion.
(Appendix 9)
Furthermore, including the main body fixing part,
9. The fixture for a lighting fixture according to any one of appendices 1 to 8, wherein the fixture can be fixed to the main body of the lighting fixture by the body fixing portion.
(Appendix 10)
The holding part and the engaging part are arranged with a constant distance therebetween, and the light can accommodate a part of the side wall part of the light diffusion cover of the lighting fixture between the holding part and the engaging part. 10. A fixture for a luminaire according to any one of claims 1 to 9, characterized in that it is provided with a diffusing cover housing.
(Appendix 11)
The main body fixing portion is arranged between the holding portion and the engaging portion, and the light diffusion cover accommodating portion is provided in a space surrounded by the main body fixing portion, the holding portion and the engaging portion. 11. A fixture for a luminaire according to claim 10, characterized in that
(Appendix 12)
12. A fixture set for a luminaire comprising at least two fixtures according to any of clauses 1-11.
(Appendix 13)
Including a main body, a power supply, a light source, a fixture, and a cover member,
The power supply device, the light source, the mounting fixture, and the cover member are arranged on the light emitting surface side of the main body,
The power supply device is connectable to an external power supply,
The power supply device and the light source are electrically connected, and an inner protrusion is provided inside the cover member,
wherein the fixture comprises at least one fixture according to any one of appendices 1 to 11;
At least part of the light source is held by the holding portion of the fixture,
A lighting fixture, wherein an inner protrusion of the cover member is engaged with the engaging portion of the mounting portion.
(Appendix 14)
at least one of said fixtures is the fixture according to appendix 3 or 4;
A stopper protrusion is provided that protrudes further inward from the inner protrusion of the cover member,
14. The lighting fixture according to claim 13, wherein the movement of the cover member is restricted by the engagement between the first elastic protrusion, the stop wall, and the stopper protrusion.
(Appendix 15)
at least one of said fixtures is the fixture according to Appendix 5 or 6;
15. The lighting fixture according to appendix 13 or 14, wherein the inner convex portion of the cover member is fixed to the main body in a pressurized state by the elastic force of the second elastic projection portion.
(Appendix 16)
In addition, including a light diffusion cover,
16. The luminaire according to any one of appendices 13 to 15, wherein the light diffusion cover is arranged on the light emitting side of the light source.
(Appendix 17)
at least one of said fixtures is a fixture according to Clause 10 or 11;
17. The lighting fixture according to claim 16, wherein part of the side wall of the light diffusion cover is accommodated in the light diffusion cover accommodation portion.
(Appendix 18)
18. According to supplementary note 16 or 17, wherein at least a portion of a light emitting side of a portion of the light source mounted on the holding portion is in contact with a portion of the light diffusion cover and fixed to the holding portion. Luminaire as described.
(Appendix 19)
19. A luminaire according to any one of appendices 16 to 18, wherein the light source and power supply are covered by the light diffusion cover.
(Appendix 20)
the light source is arranged on the light emitting surface side of the main body while maintaining a certain distance from the main body;
20. The luminaire according to any one of appendices 13 to 19, wherein the power supply device is arranged between the main body and the light source.
(Appendix 21)
the light source comprises a substrate and a light emitting element;
21. The lighting fixture according to any one of appendices 13 to 20, wherein the light emitting element is arranged on the light emitting surface of the substrate.

ADVANTAGE OF THE INVENTION According to this invention, the fixture which can simplify the structure of a lighting fixture, a fixture set, and a lighting fixture using the same can be provided.

1a, 1b, 1c, 1d, 1e, 1f Mounting tool 2 Light source 3 Cover member 4 Main body 5 Power supply device 6 Light diffusion cover 7 Ceiling 11 Holding part 12 Engaging part 13 Coupling member 14 Supporting member 21 Substrate 22 Light emitting element 31 Inward protrusion Part 32 Cover body 111 Convex guide part 120 Projection part 121 Ceiling part 122 Side wall part 123 Storage space 124 Elastic projection part 125 Leaf spring part 126 Stop wall 311 Stopper projection part

Claims (3)

a body having a circular opening in the center;
a concave portion formed to protrude toward the ceiling side of the main body;
a power supply device disposed in the recess;
an adapter disposed near the opening for electrically and mechanically joining the main body to a hooked ceiling body disposed on the ceiling;
a light source comprising a substrate on which a light-emitting element such as an LED is mounted;
a light diffusion cover arranged to cover a light irradiation surface including the substrate;
a cover member that covers the light irradiation surface side of the light diffusion cover;
a fixture that is arranged at a plurality of locations around the recess on the light irradiation surface side of the main body and holds the light source, the light diffusion cover, and the cover member;
A lighting fixture, wherein the power supply device, the light source, the light diffusion cover, the mounting fixture, and the cover member are arranged on a light irradiation surface side of the main body. The fixture has a holding portion and an engaging portion,
The holding part holds at least part of the light source,
the engaging portion engages with the inner convex portion of the cover member to hold the cover member;
the fixture accommodates the light diffusion cover between the holding portion and the engaging portion;
2. The lighting system according to claim 1, wherein the light source is fixed to the holding part by at least part of the light source mounted on the holding part being in contact with part of the light diffusion cover. instrument. The holding portion of the fixture has a mounting base,
The mounting base portion includes a convex guide portion that protrudes in the light irradiation direction for mounting the light source, and the convex guide portion defines a mounting position of a part of the light source by a side wall of the convex guide portion. 3. A luminaire according to claim 1 or 2, characterized in that it guides.

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