JP7450082B2 - lighting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to lighting equipment.

Conventionally, lighting fixtures equipped with LED elements as light sources are known (for example, see Patent Document 1).

Patent Document 1 discloses a lighting fixture (ceiling light) installed on a ceiling surface. The lighting fixture disclosed in Patent Document 1 includes a fixture body in which a recess (accommodating part) is formed on the mounting surface side and a convex part on the opposite side of the mounting surface, and a fixture body in which the convex part of the fixture body is formed. The apparatus includes a light source section, and a power supply section that is electrically connected to the light source section and installed in the recess of the instrument main body. The power supply unit is attached to the bottom plate of the storage unit using four spacers, which are power supply attachment members, at a predetermined distance. Further, a power supply cover is attached to the appliance body so as to cover the power supply section.

Further, such lighting equipment is attached to a ceiling surface using a hook ceiling adapter. At that time, a hook ceiling adapter is attached to the wiring component installed on the ceiling surface, and the hook ceiling is combined with a mounting portion provided at the center of the appliance body. At this time, it is necessary to connect the wiring extending from the hook ceiling adapter to the power supply circuit within the appliance body. Usually, wiring components such as a power supply side connector are exposed toward the through hole of the attachment part, and can be connected to wiring components on the hook ceiling adapter side. The power supply side connector is often fixed to the mounting section.

Japanese Patent Application Publication No. 2018-6148

In the lighting fixture disclosed in Patent Document 1, the power supply board of the power supply section is attached to the fixture main body using a plurality of spacers that are power supply mounting members, which makes the assembly work complicated. Furthermore, in the lighting fixture disclosed in Patent Document 1, a mounting portion is attached to the power supply cover. The assembly work is complicated because the power supply side connector extending from the power supply board attached to the device body is fixed at a predetermined position on the mounting part attached to the power supply cover.
For this reason, a highly productive lighting device is desired that can simplify the assembly work of the lighting device.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a highly productive lighting fixture that can simplify the assembly work of the lighting fixture by integrating the power supply section into one unit. With the goal.

The problem to be solved by the present invention is as described above, and next, means for solving this problem will be explained.

That is, the lighting equipment disclosed in this application,
A lighting fixture that is attached to a mounting surface,
A light source part,
an instrument main body to which the light source section is attached to the irradiation surface side;
a power supply unit electrically connected to the light source unit;
an instrument cover attached to the mounting surface side of the instrument body;
a mounting portion attached to the mounting surface, disposed on the irradiation surface side of the instrument cover;
a plurality of cushioning materials attached to the mounting surface side of the instrument main body,
The instrument cover is
It has a mounting hole, a peripheral portion, a top plate portion, a peripheral wall portion, and a plurality of instrument mounting portions formed around the peripheral wall portion,
formed by the top plate portion and the peripheral wall portion to be concave upward in cross-sectional view and protrude toward the mounting surface side;
The plurality of instrument attachment parts are
formed in a flange shape extending radially outward from the lower end of the peripheral wall, and arranged alternately with notches in the circumferential direction of the peripheral wall,
The cushioning material is attached to a position corresponding to the notch ,
The circumferential length of the notch corresponds to the longitudinal length of the cushioning material .

According to the present invention, by integrating the power supply section into one unit, the power supply section can be easily attached to the fixture main body, and the assembly work of the lighting fixture can be simplified.

FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present invention, viewed diagonally from below. FIG. 4 is a side view showing the lighting equipment. Similarly, an exploded perspective view of the lighting fixture seen diagonally from above. Similarly, an exploded perspective view of the lighting fixture seen diagonally from below. FIG. 3 is a perspective view showing the lighting fixture (with the translucent cover removed). FIG. 2 is a perspective view showing a lighting fixture (with a translucent cover and a protective cover removed). FIG. 3 is a perspective view showing a power supply cover. FIG. 3 is a perspective view showing a power supply section. The perspective view which shows the state where the power supply part is arrange|positioned in the instrument main body. FIG. 3 is a perspective view showing the instrument upper cover and the attachment part. FIG. 3 is a plan view showing a state in which the power supply side connector part is combined with the mounting part. FIG. 3 is a perspective view showing the irradiation surface side of the protective cover. FIG. 3 is a perspective view showing the mounting surface side of the protective cover. A plan view showing a substrate material (original substrate).

A lighting fixture 11 according to an embodiment of the present invention will be described using FIGS. 1 to 14. The lighting fixture 11 according to this embodiment is a lighting fixture that uses a plurality of LED elements 42 as a light source. As shown in FIGS. 1 and 2, the lighting fixture 11 is, for example, a ceiling light that is directly attached to a mounting surface (not shown) such as a ceiling. In the following description, the side of the lighting fixture 11 that irradiates light is referred to as the irradiation surface side of the lighting fixture 11, and the side of the lighting fixture 11 that faces the mounting surface such as the ceiling is the mounting surface side of the lighting fixture 11 (in the installed state, it is side). Further, in the lighting fixture 11, the vertical direction in FIGS. 2 to 4 and 10 will be described as the "vertical direction" of the lighting fixture 11. A direction perpendicular to the vertical direction will be described as a radial direction. In addition, in the description of this embodiment, the state in which the lighting fixture 11 and the like are viewed from below is assumed to be a plan view. A side view is a state in which the lighting fixture 11 and the like are viewed from a direction perpendicular to the vertical direction. The state in which the cross-sectional shape of the lighting fixture 11 etc. is viewed is referred to as a cross-sectional view.

The lighting fixture 11 mainly includes a fixture body 21 , a power supply section 31 , a light source section 41 , a translucent cover 51 , a fixture upper cover 61 , a mounting section 71 , a receiving section 81 , and a protective cover 91 . The lighting fixture 11 has a circular shape in plan view.
Note that the shape of the lighting fixture 11 is not limited to a circular shape as shown in this embodiment, but may be a square shape in a plan view.

The fixture main body 21 constitutes the main body of the lighting fixture 11. The instrument main body 21 is a member called a so-called base or chassis. The instrument main body 21 is flat, approximately hat-shaped, and has a circular outer contour when viewed from above. The device main body 21 holds the light source section 41, the protective cover 91, the translucent cover 51, etc. on the irradiation surface side. The instrument main body 21 holds the power supply section 31, the instrument upper cover 61, etc. on the mounting surface side.

The instrument main body 21 has a recess formed on the mounting surface side (a portion of the accommodating portion 26 to be described later on the mounting surface side). The instrument main body 21 has a convex portion (a portion of the accommodating portion 26 to be described later on the irradiation surface side) formed on the irradiation surface side opposite to the mounting surface side. As shown in FIG. 3, the instrument main body 21 has an opening 22, an inner peripheral edge 23, a bottom plate 24, a peripheral wall 25, a housing 26, and a collar 27, and is integrally formed as a single member. has been done. In the instrument body 21, the irradiation surface side of the bottom plate section 24 serves as a light source attachment section 24a for attaching the light source section 41, and the light source attachment section 24a is provided at the top of the convex portion of the instrument body 21 on the irradiation surface side. The appliance main body 21 has the durability and strength to hold the power source section 31, the mounting section 71, the appliance upper cover 61, the protective cover 91, the translucent cover 51, etc., and the ability to radiate heat generated by the power source section 31 and the light source section 41. It is formed using a metal plate such as iron, aluminum, or an alloy thereof in consideration of thermal conductivity. Note that the device main body 21 is not limited to the above-mentioned metal material, but can be made of other materials such as other alloy materials and resins, as long as the material has high durability, strength, and heat dissipation.
In addition, in this embodiment, the inner peripheral edge part 23, the bottom plate part 24, the peripheral wall part 25, the accommodation part 26, and the collar part 27 are integrally formed as the instrument main body 21, but this is not particularly limited. The above-mentioned constituent members may be individually assembled.

The opening 22 is a circular opening portion through which the attachment portion 71 is exposed. The opening 22 is provided at the center of the instrument body 21 in the radial direction.

The inner peripheral edge portion 23 is a peripheral edge portion of the opening portion 22 and has an annular shape in plan view. The inner peripheral edge portion 23 is a portion that the other end (lower end) of the attachment portion 71 contacts or approaches.

The bottom plate portion 24 is a plate-shaped portion formed in an annular shape around the inner peripheral edge portion 23 . The bottom plate portion 24 has a light source attachment portion 24a that is a flat surface on which the light source portion 41 is attached on the irradiation surface side.

The light source attachment part 24a is a flat surface on which a plurality of (two in this embodiment) LED light source modules 44 are attached at predetermined positions, and the LED light source modules 44 are attached to the flat surface in contact with the same. Since the light source attachment part 24a also functions as a heat dissipation part that transmits the heat generated in the light source part 41 and releases it to the outside, the light source attachment part 24a to which the light source part 41 is attached has a large contact area with the light source part 41. It is formed flat.

A square-shaped insertion hole 24b having a connection terminal at one end and through which a wire extending from the power supply section 31 is inserted is provided in the middle of the bottom plate section 24 in the radial direction.

A light-receiving window 24c, which is an oval-shaped opening in plan view, is provided in the middle of the bottom plate portion 24 in the radial direction at a position corresponding to the light-receiving element 82 of the receiving portion 81. The light receiving window 24c is arranged close to the insertion hole 24b.

Near the inner and outer edges of the bottom plate section 24, there are a plurality of claws (in this embodiment, two on the inner circumference and two on the outer circumference) for fitting the claws 92a and 94a of the protective cover 91. 2) through holes 24d are provided. The plurality of through holes 24d are arranged approximately evenly in the circumferential direction of the bottom plate portion 24.

A plurality of (four in this embodiment) screw fixing parts 24f are provided in the middle of the bottom plate part 24 in the radial direction for fixing the LED light source module 44 to the light source mounting part 24a with screw members.

The peripheral wall portion 25 is a tapered portion whose diameter increases upward from the outer peripheral edge of the bottom plate portion 24 . The peripheral wall portion 25 is provided with a substantially square-shaped through hole 25a for assembling the channel changeover switch portion 38 of the power source portion 31 to expose it. The through hole 25a is formed to match the outer dimensions of the channel changeover switch section 38, and is slightly larger than the outer dimensions of the channel changeover switch section 38.

The housing portion 26 is a flat, bottomed, substantially cylindrical portion formed by the inner peripheral edge portion 23, the bottom plate portion 24, and the peripheral wall portion 25. The housing portion 26 has a circular outer shape when viewed from above. The accommodating portion 26 is formed in a downward concave shape when viewed from the mounting surface side, and is formed in a downward convex shape when viewed from the irradiation surface side. The housing portion 26 is a portion in which the power source portion 31 and a portion of the attachment portion 71 are housed. A wiring component 110 such as a hook ceiling adapter is attached to the mounting portion 71, and the lighting fixture 11 is electrically connected to a wiring device disposed on the mounting surface side such as the ceiling via the wiring component 110. A claw portion 20 of a power supply case 35, which will be described later, is engaged with the bottom plate portion 24 serving as the bottom surface of the housing portion 26, and a plurality of (in this embodiment, two) notches 24e are provided for positioning the power supply case 35. is provided.

The collar portion 27 is formed around the accommodating portion 26 . The collar portion 27 is an annular portion that projects radially outward from the outer peripheral edge of the upper end of the peripheral wall portion 25 . The flange portion 27 is an outer peripheral edge portion of the instrument main body 21. A plurality of (three in this embodiment) holding parts 29 for holding the translucent cover 51 are provided on the irradiation surface side of the collar part 27 . The plurality of holding parts 29 are arranged at substantially equal intervals along the circumferential direction of the collar part 27. Further, on the mounting surface side of the flange portion 27, a plurality of (four in this embodiment) cushioning materials 30 are arranged at approximately equal intervals. The cushioning material 30 is sandwiched between the mounting surface and the lighting fixture 11 when the lighting fixture 11 is mounted on the mounting surface such as a ceiling, and is used to prevent the lighting fixture 11 from wobbling due to its elastic force. be. Details of the mounting position of the cushioning material 30 will be described later.

The power source section 31 is electrically connected to the light source section 41 and is attached to the housing section 26, which is a recessed section of the instrument main body 21, as one unit. Specifically, the power supply section 31 includes a power supply circuit section 32, a power supply case 35 that accommodates the power supply circuit section 32, a power supply side connector section 37, and a channel changeover switch section 38. One end side (the irradiation surface side) of the power supply section 31 is housed and attached within the housing section 26 , and the other end side (the mounting surface side) abuts the instrument upper cover 61 .

The power supply circuit section 32 is a power supply circuit for supplying power to the LED element 42 (see FIG. 6) included in the light source section 41 and lighting the LED element 42. The power supply circuit unit 32 is a power supply circuit in which electronic components such as a plurality of power supply circuit components are mounted on a power supply board 33, which is a printed wiring board processed into a substantially D-shape in plan view and one end formed in an arc shape. It is. The power supply circuit section 32 is for converting alternating current supplied from an external commercial power source into a predetermined direct current, and supplying the converted current to the plurality of LED elements 42 mounted on the substrate 43. The power supply circuit section 32 (power supply board 33) is arranged with the mounting surface of electronic components such as power supply circuit components facing downward. On the mounting surface side (lower surface side) of the power supply board 33, electronic components such as power supply circuit components and a remote control signal receiving section 81 are arranged. The receiving section 81 includes a light receiving element 82 and a channel changeover switch 83. That is, the power supply section 31 is formed by mounting electronic components such as power supply circuit components and a light receiving element 82 that receives a remote control signal on the same substrate. Further, the power supply section 31 is formed by mounting electronic components such as power supply circuit components and the channel changeover switch 83 on the same substrate. Further, in the power supply unit 31, electronic components such as the power supply circuit components, a light receiving element 82, and a channel changeover switch 83 are mounted on one surface (lower surface) of the power supply board 33. The light receiving element 82 of the receiving section 81 is arranged on the power supply board 33 at a position facing the light receiving window 35a2 of the power supply case 35 and the light receiving window 24c of the appliance main body 21. Further, a channel changeover switch 83 is arranged at one end of the power supply board 33 (the top of the arc-shaped end). The power supply circuit section 32 is provided with a power supply side connector 34 via wiring. When the power supply side connector 34 is installed on a mounting surface such as a ceiling, the power supply circuit section 32 is connected to a connector (not shown) on the wiring equipment side when the lighting equipment 11 is attached to a mounting surface such as a ceiling. Electrically connected to external commercial power supply. The power supply circuit section 32 and the light source section 41 are electrically connected by wiring (not shown) through an insertion hole 35a1, which will be described later.

The power supply case 35 is a flat bottomed container-like member that is made of a resin material and has an open mounting surface. The power supply case 35 of the present embodiment has a flat side facing the mounting portion 71 and a curved side facing the peripheral wall portion 25 of the instrument body 21, and is formed into a substantially D-shape in plan view. The power supply case 35 can be attached to the instrument body 21. The power supply case 35 includes a bottom part 35a, a first peripheral wall part 35b, a second peripheral wall part 35c, a third peripheral wall part 35d, a power supply side connector holding part 35e, a channel changeover switch part 38, and a power supply board holding part. 39 (locking part 39a, regulating part 39b). The power supply case 35 is a member having electrical insulation properties.

The bottom surface portion 35a is a plate-like portion that is approximately D-shaped in plan view. The first peripheral wall portion 35b is a plate-shaped portion extending upward from the long side portion of the bottom surface portion 35a. The second peripheral wall portion 35c is a side wall that faces each other in the longitudinal direction, and is a plate-shaped portion extending upward from the pair of short sides of the bottom surface portion 35a. The third peripheral wall part 35d includes a curved part 35d1 extending from the arc-shaped part of the bottom part 35a and formed to be close to or in contact with the peripheral wall part 25 of the instrument main body 21, and an upper end of the curved part 35d1. It has an extending portion 35d2 which is arcuate in plan view and extends upward from the top.

The bottom part 35a has a circular insertion hole 35a1 for inserting the wiring that electrically connects the power supply circuit part 32 and the light source part 1, and an oval light-receiving window 35a2 at a position corresponding to a light-receiving element 82, which will be described later. It has

The inside of the power supply case 35 has a power circuit arrangement section 36 that accommodates and arranges the power supply circuit section 32 (power supply board 33) that is approximately D-shaped in plan view. The power supply case 35 has a power supply board holding part 39 for holding the power supply board 33 arranged in the power supply circuit arrangement part 36. The power supply board holder 39 has a plurality of locking parts 39a (eight in this embodiment) and is provided in a convex shape upwardly in the vicinity of the channel changeover switch part 38 on the mounting surface side of the bottom part 35a. and a regulating section 39b. A locking portion 39a is provided at the peripheral edge of the upper end of the power supply case 35 (see FIG. 7). The power supply board holding part 39 locks the peripheral edge of the power supply board 33 when the power supply circuit part 32 is accommodated in the power supply circuit placement part 36 . The locking portion 39a includes an arrowhead-shaped claw portion 39a1 and a convex portion 39a2 extending from each peripheral wall portion toward the power supply circuit placement portion 36 in the vicinity of the arrowhead-shaped claw portion 39a1. The arrowhead-shaped claw portion 39a1 and the convex portion 39a2 have a gap in side view. In the gap between the arrow-shaped claw portion 39a1 and the convex portion 39a2, the power supply board 33 is held between the arrow-shaped claw portion 39a1 and the convex portion 39a2. The power supply board 33 is disposed at a predetermined position in the power supply circuit arrangement part 36 by locking parts 39a at a plurality of locations on its outer peripheral edge side so as to have a predetermined distance from the bottom surface part 35a of the power supply case 35. The regulating portion 39b comes into contact with the irradiation surface side of the power supply board 33, and regulates the downward movement of the power supply board 33. Furthermore, the distal end of the regulating portion 39b can fit into a through hole 33a provided in the power supply board 33. As a result, the vicinity of the channel changeover switch 83 of the power supply board 33 is positioned at a predetermined position near the channel changeover switch section 38 of the power supply circuit placement section 36. Further, the positional shift of the power supply board 33 near the channel changeover switch 83 is prevented. By regulating the position of the power supply board 33 near the channel changeover switch section 38 by the restriction section 39b, when performing a channel changeover operation, the channel changeover switch 83 is less likely to be misaligned and can be easily operated.
That is, the locking portion 39a and the regulating portion 39b allow the power supply board 33 to be attached to a predetermined position of the power supply case 35 so as to have a predetermined distance from the bottom surface 35a of the power supply case 35.

As shown in FIG. 8, on the irradiation surface side of the power supply case 35 (the surface opposite to the side where the power supply circuit section 32 is arranged), a plurality of (in this embodiment, two) claw parts 20 projecting laterally. is provided. As shown in FIG. 9, the claw portion 20 is a portion that fits into a notch portion 24e provided in the bottom plate portion 24 of the accommodating portion 26 of the instrument main body 21. As shown in FIG. The power supply case 35 is positioned at a predetermined position on the bottom plate 24 by fitting the claw portion 20 of the power supply case 35 into a notch 24e provided in the bottom plate 24. The power supply case 35 is fixed by being sandwiched between the instrument main body 21 and the instrument upper cover 61.

As shown in FIG. 11, the power supply side connector holding portion 35e is a portion of the first peripheral wall portion 35b facing the attachment portion 71 that protrudes convexly toward the attachment portion 71. As shown in FIG. As shown in FIG. 7, the power supply side connector holding part 35e is a part communicating with the power supply circuit arrangement part 36, and has a bottomed shape and an open upper end. The power supply side connector holding portion 35e has an insertion hole 35f through which the power supply side connector 34 is inserted. The power supply side connector 34 extending from the power supply circuit section 32 via the wiring is held in a state protruding from the insertion hole 35f by the power supply side connector holding section 35e.
Note that the power feeding side connector holding portion 35e of this embodiment is an example of the power feeding side connector holding portion in the present invention. The shape of the power supply side connector holding part, the position provided in the power supply case, etc. may be changed as appropriate.

The channel changeover switch section 38 is a section that is provided at the center in the longitudinal direction of the third circumferential wall section 35d facing the circumferential wall section 25, and is exposed from the through hole 25a of the instrument main body 21 and has a substantially rectangular shape in side view. The channel changeover switch section 38 is a part where the channel changeover switch 83 is placed when the power supply board 33 is placed inside the power supply case 35 . The channel changeover switch section 38 has an overhang part 38a extending outward in the radial direction at the upper end, and a through hole 38b for exposing the tip of the channel changeover switch 83 at the lower part of the overhang part 38a. The channel changeover switch part 38 is combined with the through hole 25a of the instrument main body 21, and the channel changeover switch part 38 is exposed on the side surface of the peripheral wall part 25. The exposed portion of the channel changeover switch portion 38 is inclined substantially along the slope of the peripheral wall portion 25, and is formed to be easily visible to the user from below. In this way, since the channel changeover switch section 38 is exposed to the irradiation surface side through the through hole 25a of the instrument main body 21, channel setting work is easy.
Although a plurality of electrical components are mounted on the mounting surface of the power supply board 33, illustration of some of the electrical components is omitted in FIG. 3 and the like in order to clearly illustrate the configuration of the power supply board 33. Further, the channel changeover switch unit 38 of this embodiment is an example of a channel changeover switch unit in the present invention. The shape of the channel changeover switch section, the position provided in the power supply case, etc. may be changed as appropriate.

By configuring the power supply section 31 in this way, the power supply circuit section 32 (power supply board 33), the reception section 81 (light receiving element 82, channel changeover switch 83), and the power supply side connector 34 are integrated into one unit. It has become In the power source section 31, first, the claw section 20 is engaged with the notch section 24e provided in the bottom plate section 24 of the instrument main body 21. The channel changeover switch section 38 is disposed on the irradiation surface side of the instrument main body 21 with the projecting section 38a locked to the inner circumferential end of the collar section 27 of the instrument main body 21. With the power source section 31 disposed in the instrument body 21, the instrument upper cover 61 is attached to the instrument body 21. By attaching the instrument upper cover 61 to the instrument main body 21, the power supply section 31 is held and fixed between the instrument main body 21 and the instrument upper cover 61. At this time, the power feeding side connector portion 37 (power feeding side connector holding portion 35e) is combined with a power feeding side connector guide portion 76 of the mounting portion 71, which will be described later. Further, the channel changeover switch section 38 is combined with the through hole 25a of the instrument main body 21.
Thereby, the power supply side connector 34 is attached so as to be exposed inside the attachment portion 71. Further, the channel changeover switch section 38 is attached to be exposed on the side surface of the peripheral wall section 25. When attaching the lighting fixture 11 to a mounting surface such as a ceiling, the power supply side connector 34 is placed inside the mounting part 71 and connected to a connector (not shown) on the wiring equipment side, so that the power supply circuit part 32 is electrically connected to an external commercial power source via a ceiling wiring device for lighting equipment. In this way, the power supply circuit section 32 (power supply board 33), the reception section 81 (light receiving element 82, channel changeover switch 83), and the power supply side connector 34 are installed as one unit in the housing section 26 of the instrument main body 21 via the power supply case 35. It is attached.

Moreover, since the power supply circuit section 32 is housed in the power supply case 35 as described above, electrical insulation can be ensured between the power supply circuit section 32 and the appliance main body 21. In addition, by using the power supply case 35 to integrate the power supply circuit section 32 (power supply board 33), the reception section 81 (light receiving element 82, channel changeover switch 83), and the power supply side connector 34 as the power supply section 31, These can be easily attached to the fixture main body 21 and the mounting portion 71 at the same time, and the ease of assembling the lighting fixture 11 is improved. That is, it is possible to simplify the assembly work of the lighting fixture 11. Further, the work process of integrating the power supply circuit part 32 (power supply board 33), the reception part 81 (light receiving element 82, channel changeover switch 83), and the power supply side connector 34 into one unit using the power supply case 35, and It becomes possible to separate the work process of attaching one unit to the instrument main body 21, and productivity is improved.

Further, the power supply case 35 is open on the mounting surface side, and one surface side (mounting surface side) of the power supply board 33 is exposed. Thereby, the heat generated from the power supply circuit section 32 is not trapped inside the power supply case 35. Further, since the power supply case 35 is open on the side facing the appliance top cover 61, heat is radiated to the outside via the appliance top cover 61, thereby improving heat dissipation.

The light source section 41 is a section that emits light toward the irradiation surface side of the lighting fixture 11. The light source section 41 is arranged on the convex section of the instrument main body 21 (the part on the irradiation surface side of the housing section 26). The light source section 41 has a plurality of LED elements 42. The light source section 41 is a flat plate disposed on the light source mounting section 24a on the irradiation surface side of the bottom plate section 24. The light source attachment part 24a has a flat surface. Specifically, the light source section 41 includes a plurality of (in this embodiment, two) LED light source modules 44 . Each LED light source module 44 is configured by mounting a plurality of LED elements 42, which are point light sources, on a substrate 43 (43a, 43b) which is a flat module board. The plurality of LED elements 42 are arranged approximately concentrically around the opening 22 of the instrument body 21 at approximately equal intervals. The LED light source module 44 is arranged at a position closer to the irradiation surface than the holding part 29 of the instrument main body 21. Thereby, the shadow of the holding portion 29 is less likely to appear on the transparent cover 51.

As shown in FIG. 5, the substrate 43 of the LED light source module 44 is formed into a substantially semicircular shape having a predetermined width when viewed from above. In this embodiment, two LED light source modules 44 are used, and the substrates 43 of each LED light source module 44 are substantially semicircular and similar in shape, but have different outline shapes.

The substrate 43a of one of the LED light source modules 44 has a substantially L-shaped cutout at one corner on the inner peripheral side. That is, the substrate 43a has a notch portion 43a1 cut out in a substantially L-shape at one end in the circumferential direction on the inner circumferential side. The substrate 43a has, at both ends in the circumferential direction, one end 43a2 and the other end 43a3, which are formed along the radial direction and are connected to the notch 43a1. The one end portion 43a2 has a notch portion 43a4 cut out in a substantially semicircular shape so as to correspond to the insertion hole 24b of the bottom plate portion 24 in the radial center portion thereof. The outer circumferential side of the substrate 43a has a notch 43a5 and a notch 43a6 which are linearly cut out in order from the side closest to the end 43a2. When the substrate 43a of the LED light source module 44 is attached to the light source attachment part 24a of the instrument main body 21, the notch part 43a5 is arranged so as to be located near the through hole 24d on the outer peripheral side of the bottom plate part 24.

The substrate 43b of the other LED light source module 44 has a substantially L-shaped cutout at one corner on the inner circumferential side. That is, the substrate 43b has a notch portion 43b1 cut out in a substantially L-shape at one circumferential end on the inner circumferential side. The substrate 43b has, at both ends in the circumferential direction, one end 43b2 and the other end 43b3, which are formed along the radial direction and are connected to the notch 43b1. The other end portion 43b3 has a notch portion 43b4 cut out in a substantially semicircular shape so as to correspond to the insertion hole 24b of the bottom plate portion 24 in the radial center portion thereof. The outer peripheral side of the substrate 43b has a notch 43b5 and a notch 43b6 which are linearly cut out in order from the side closest to the end 43b3. The substrate 43b has a light receiving window 43b7 which is an oval opening corresponding to the light receiving window 24c. One substrate 43a has the notch 43a1 and the notch 43a4 formed at the same end (end 43a2), and the other substrate 43b has the notch 43b1 and the notch 43b4 formed at different ends ( 43b2 and 43b3), respectively.

The substrate 43a and the substrate 43b have a notch 43a1 and a notch 43b1 cut out at one end in the circumferential direction on the inner circumference side, a notch 43a5 and a notch 43a6 cut out linearly on the outer circumference side, and a notch 43a6 and a notch A notch 43b5 and a notch 43b6 are provided. As a result, as shown in FIG. 14, when cutting the substrate material (original substrate) to produce a plurality of substrates, the notch portion 43a1 and the notch portion 43b1 are formed in the circumferential direction on the outer periphery side of the substrate 43a and the substrate 43b. By arranging one end of the board, it is possible to cut it out efficiently, reducing the amount of substrate material to be discarded and reducing manufacturing costs.

The board 43 (43a, 43b) of each LED light source module 44 has a plurality of screw holes (in this embodiment, two each in the board 43a, 43b) along the circumferential direction in the radial center part. It has a fixing part 46. The screw fixing part 46 includes a screw fixing part 46a for directly fixing the LED light source module 44 to the instrument body 21 with a screw member, and a screw fixing part 46a for directly fixing the LED light source module 44 to the instrument body 21 with a screw member, and a screw fixing part 46a for fixing the protective cover 91 and the LED light source module 44 to the instrument body 21 together with a screw member. It has a screw fixing part 46b.

The substrate 43 (43a, 43b) has a circular shape for positioning by being engaged with a plurality of (in this embodiment, four) circular convex portions 24g provided on the light source attachment portion 24a of the bottom plate portion 24. A plurality of (in this embodiment, two each of the substrates 43a and 43b) through holes 47 are provided along the circumferential direction in the radial center portion.

Each LED light source module 44 is arranged in the light source attachment part 24a with the end 43a2 and the end 43b3 and the end 43a3 and the end 43b2 facing each other in the circumferential direction. Furthermore, each LED light source module 44 has a connector 45 that is a connection part for electrically connecting the wiring extending from the power supply part 31 when the end part 43a3 and the end part 43b2 are arranged to face each other. ing. The connector 45 is a connector for feeding power to the plurality of LED elements 42 arranged in each LED light source module 44. As shown in FIG. 4, the connector 45 is arranged at a position overlapping the power supply section 31 in a plan view. Further, a plurality of LED light source modules 44 can be made into one unit by connecting each LED light source module 44 with a connecting part that electrically or mechanically connects each other. By arranging two approximately semicircular LED light source modules 44 in the light source mounting portion 24a with their ends facing each other, a substantially circular light source section 41 can be formed. Each LED light source module 44 is electrically connected to the power supply unit 31 by connecting corresponding wiring (not shown) to each connector 45 . Each LED light source module 44 is fixed with the back surface of the mounting surface of the board 43 in contact with the flat surface of each light source attachment part 24a, so when each LED light source module 44 generates heat, the LED light source module 44 The heat is transmitted to the instrument body 21 and the instrument upper cover 61. The heat transmitted to the instrument body 21 is transmitted to the air around the instrument body 21 when the ambient temperature is lower than the temperature of the instrument body 21. Thereby, the heat transmitted to the instrument main body 21 is radiated to the surroundings of the instrument main body 21.
Note that each LED light source module 44 may be attached to the light source attachment part 24a via a thermally conductive sheet (not shown) or heat dissipation grease, thereby achieving higher heat dissipation.

Furthermore, in this embodiment, a surface-mounted LED element, which is an example of a light-emitting element, is used as a light source, but the type of light source is not limited to an LED element, and may, for example, be a COB-type light-emitting module, an organic EL element (OLED), etc. It is possible to achieve even if
Further, each of the substrate 43a and the substrate 43b is provided with a plurality of (two in this embodiment) circular through holes 47 in the radial center. For example, when the instrument main body 21 is provided so that the light source mounting portion 24a has a plurality of circular convex portions 24g (four in this embodiment) as shown in FIG. It is also possible to lock and position. By locking the through hole 47 of the substrate 43 with the convex portion 24g of the light source mounting portion 24a, the LED light source module 44 can be easily placed at a predetermined position in the light source mounting portion 24a.

In the LED light source module 44 of this embodiment, a plurality of LED elements 42 are arranged in substantially concentric circles (in two rows, radially inside and radially outside of the substrate 43).

The translucent cover 51 is a member that is attached to the instrument body 21 so as to cover the irradiation surface side of the instrument body 21, and distributes the light to the outside while reflecting and diffusing the light from the light source section 41. The translucent cover 51 includes a shade and the like. The translucent cover 51 is made of a translucent resin material. The overall shape of the translucent cover 51 is circular in plan view, and gently bulges into a dome shape toward the bottom surface. The translucent cover 51 has a structure that can be attached to and removed from the instrument body 21 for purposes such as cleaning the inside of the translucent cover 51 or replacing parts of the instrument body 21. A held portion 52 for attaching the translucent cover 51 to the flange 27 of the instrument main body 21 is formed at the opening edge on the upper surface side of the translucent cover 51 . Note that the shape of the translucent cover 51 in this embodiment is just one example, and in addition to the dome shape, it can also be shaped like a cylinder, a rectangular tube, or the like.

The device main body 21 is provided with a holding portion 29 that is a mounting fitting for holding the held portion of the translucent cover 51. Although details are omitted, when the translucent cover 51 is placed at the mounting position of the instrument main body 21 and rotated in one direction in the circumferential direction of the translucent cover 51, the held portion 52 of the translucent cover 51 is attached to the instrument body 21. The translucent cover 51 is attached to the instrument main body 21 while being held by the holding portion 29 of the main body 21 . Furthermore, when the translucent cover 51 is rotated in the other circumferential direction with the translucent cover 51 attached to the instrument main body 21, the held portion 52 of the translucent cover 51 moves to the holding portion of the instrument main body 21. 29, and the translucent cover 51 can be removed from the instrument body 21.

The instrument upper cover 61 is a member that covers at least a portion of the mounting surface side of the instrument body 21 (for example, the accommodating portion 26). The device upper cover 61 has a circular outer shape in plan view, is concave upward in cross-sectional view, and is formed to protrude toward the mounting surface side. In this embodiment, the appliance upper cover 61 covers the entire mounting surface side of the power supply section 31 and a part of the mounting surface side of the mounting section 71. The instrument upper cover 61 has a substantially circular outer contour when viewed from above. The instrument upper cover 61 holds the instrument body 21, the attachment part 71, etc. on the irradiation surface side. The instrument upper cover 61 is attached to the mounting surface side of the accommodating portion 26 of the instrument main body 21. Furthermore, a mounting portion 71 for mounting a wiring component 110 such as an adapter is attached to the center portion of the instrument upper cover 61 on the irradiation surface side. The instrument upper cover 61 has a mounting hole 64, a peripheral portion 65, a top plate portion 66, a peripheral wall portion 67, and an instrument mounting portion 68 formed around the peripheral wall portion 67, and is integrally formed as a single member. It is formed. The appliance upper cover 61 is made of iron or aluminum in consideration of durability and strength to hold the appliance main body 21, mounting part 71, etc., and thermal conductivity to dissipate heat generated by the power source part 31 and light source part 41. , or an alloy thereof. Note that the appliance upper cover 61 is not limited to the above-mentioned metal material, but can be made of other materials such as other alloy materials and resins, as long as the material has high durability, strength, and heat dissipation.
Note that in this embodiment, the peripheral portion 65, the top plate portion 66, the peripheral wall portion 67, and the appliance mounting portion 68 are integrally formed as the appliance upper cover 61, but this is not particularly limited, and each of the above The structure may be constructed by individually assembling the constituent members.

The attachment hole 64 is a circular opening into which a wiring component 110 such as an adapter is inserted when the lighting fixture 11 is attached to the ceiling. The attachment hole 64 is provided at the center of the instrument upper cover 61 in the radial direction.

The peripheral edge part 65 is a peripheral edge part of the attachment hole 64, and is a part to which one end (upper end) of the attachment part 71 is attached. The peripheral edge portion 65 is an annular portion that protrudes downward and has a predetermined width. The peripheral portion 65 is provided with a through hole 65a into which the claw portion 74 of the attachment portion 71 is fitted. In this embodiment, a plurality of (in this embodiment, two) through holes 65a are provided at equal intervals along the circumferential direction of the peripheral edge portion 65. The peripheral portion 65 is provided with a plurality of (in this embodiment, two) first screw fixing portions 65b for fixing the attachment portion 71 with fixing members such as screw members. By fitting the claw portion 74 of the attachment portion 71 into the through hole 65a provided in the peripheral portion 65, the attachment portion 71 is positioned at a predetermined position on the peripheral portion 65, and the attachment portion 71 is secured to the first screw. It is fixed to the fixing part 65b by a fixing member. That is, the attachment part 71 is temporarily fixed by fitting the claw part 74 into the through hole 65a, and is fixed to the first screw fixing part 65b of the peripheral part 65 by the fixing member.

The peripheral portion 65 is provided with a pair of removable knockout portions 65c for the QL stat. The knockout portion 65c includes a large diameter portion 65c1 and a slit portion 65c2 connected to the large diameter portion 65c1. When attaching the lighting fixture 11 to a mounting surface using a QL stud, which is a mounting bracket for mounting a lighting fixture, a mounting hole is formed by punching out the knockout part 65c with the tip of a screwdriver or the like to penetrate the knockout part 65c. be able to.

The top plate portion 66 is a flat portion formed in an annular shape around the peripheral edge portion 65 .

The peripheral wall portion 67 is a tapered portion whose diameter increases downward from the outer peripheral edge of the top plate portion 66.

The instrument attachment portion 68 is a flange-shaped portion extending radially outward from all sides of the lower end of the peripheral wall portion 67 . A plurality of device attachment portions 68 (four in this embodiment) are provided around the lower end of the peripheral wall portion 67 at approximately equal intervals. Further, the plurality of instrument attachment portions 68 are arranged alternately with a plurality of (in this embodiment, four) notches 69 in the circumferential direction of the peripheral wall portion 67 . The instrument attachment part 68 has a screw fixing part 68a, and is attached to the collar part 27 of the instrument main body 21 by a fixing member.

The notch part 69 of the instrument attachment part 68 has a circumferential length corresponding to the length of the cushioning material 30 in the longitudinal direction, and when the instrument upper cover 61 is attached to the instrument main body 21, The cushioning material 30 can be attached to a predetermined position of the flange 27 of the instrument body 21 based on the position of the notch 69 in the flange 27 of the main body 21 . Thereby, the visibility of the attachment position (applied position) of the cushioning material 30 can be improved. That is, the positioning of the cushioning material 30 in the collar portion 27 of the instrument body 21 can be easily performed.

Specifically, the cushioning material 30 is attached to the vicinity of the inner periphery of the collar portion 27 of the instrument body 21 in a state in close proximity to the top of the notch portion 69 that is substantially arcuate in plan view. The buffer material 30 is an elongated rectangular parallelepiped, and is attached to the flange portion 27 of the instrument body 21 such that the longitudinal direction of the buffer material 30 is perpendicular to the radial direction of the instrument body 21. It is preferable to attach the cushioning material 30 to the instrument body 21 holding the light source section 41 in order to prevent the instrument body 21 from wobbling and to stabilize the position of the light source section 41.

The instrument upper cover 61 is attached with the attachment section 71 attached, with the instrument attachment section 68 abutting near the inner periphery of the collar section 27 of the instrument body 21. By attaching the instrument upper cover 61 to the instrument main body 21 so as to overlap the accommodating section 26 in a plan view, a part of the attachment section 71 is arranged to be exposed from the opening 22 of the instrument main body 21. Further, a predetermined space is formed by the instrument upper cover 61 and the accommodating portion 26 (bottom plate portion 24), and the height and width for accommodating the power source portion 31 and the attachment portion 71 are ensured in the space. Inside the instrument upper cover 61, the power supply section 31 (power supply case 35) is arranged adjacent to the attachment section 71 (see FIG. 11).

The attachment portion 71 is a portion to which a wiring component 110 such as a hook ceiling adapter is attached. As shown in FIG. 10, the attachment part 71 includes a cylindrical part 72 having a larger diameter than the opening 22 of the instrument main body 21, and an annular part 73 extending radially inward from one end (upper end) of the cylindrical part 72. have. The annular portion 73 is provided with a screw fixing portion 75 for fixing one end (upper end) of the attachment portion 71 to the first screw fixing portion 65b of the instrument upper cover 61 with a fixing member such as a screw. On the mounting surface side of the annular portion 73, a plurality of (in this embodiment, two) claw portions 74 protrude upward and fit into through holes 65a provided in the instrument upper cover 61 (peripheral portion 65). It is provided. The plurality of claw portions 74 are arranged on the same circumference. The claw portion 74 can be fitted into the through hole 65a that the instrument main body 21 has. By rotating the attachment portion 71 with the claw portion 74 inserted into the through hole 65a, the claw portion 74 can be fitted into the through hole 65a. In this way, the attachment portion 71 can be easily attached to the instrument upper cover 61. After the fitting, the attachment part 71 is fixed to the peripheral edge part 65 of the instrument upper cover 61 with a fixing member such as a screw. The attachment part 71 is fixed so as to be sandwiched between the accommodating part 26 of the instrument main body 21 and the instrument upper cover 61.

An elongated hole 77 is provided in the annular portion 73 at a position corresponding to the pair of knockout portions 65c. Thereby, by cutting out the pair of knockout portions 65c, a mounting hole for the QL stud can be formed.

The cylindrical portion 72 is provided with a power feeding side connector guide portion 76 to which the power feeding side connector portion 37 of the power supply portion 31 can be combined (see FIG. 10). By combining the power feeding side connector section 37 with the power feeding side connector guide section 76, the power feeding side connector 34 is arranged inside the mounting section 71 (see FIG. 11).

As an example of attaching the lighting fixture 11 to the ceiling, the wiring component 110 such as an adapter is attached to a ceiling wiring fixture (hanging ceiling body) for the lighting fixture, and the wiring component 110 is inserted into the mounting hole 64 of the fixture upper cover 61. The wiring component 110 is fitted into the mounting portion 71.

The receiving section 81 is arranged on the power supply board 33 of the power supply section 31 described above. The receiving unit 81 is a part that receives a wireless signal (in this embodiment, an infrared signal) from a remote controller (not shown). The receiving section 81 has a light receiving element 82 which is a light receiving section and a channel changeover switch 83. The light receiving element 82 is mounted near the longitudinal center of the power supply board 33 of the power supply section 31 . The light receiving element 82 is mounted in the same direction as the LED element 42 of the light source section 41 (the light receiving surface of the light receiving element 82 and the light emitting surface of the LED element 42 are in the same direction). The channel changeover switch 83 is mounted on the irradiation surface side of the power supply board 33 of the power supply unit 31, at the center in the longitudinal direction, and at the arc-shaped end of the power supply board 33. The light-receiving element 82 is arranged so as to overlap the light-receiving window 24c that the instrument main body 21 has in a plan view. The receiving section 81 is electrically connected to the power supply board 33. The light receiving element 82 can receive a remote control signal using a wireless signal as a transmission medium transmitted from a remote control operated by a user. By transmitting a predetermined signal to the light receiving element 82 using a remote control, the user can remotely control the lighting, turning off, dimming, etc. of the LED light source module 44 (LED element 42).
Further, in this embodiment, the receiving section 81 that receives a remote control signal is provided, but the present invention is not limited to this, and other sensor control methods may be adopted. Moreover, control by wire may be used instead of control by wireless signals, and in that case, there is no need to provide a receiving section.

The protective cover 91 is a member that covers the light source section 41 between the instrument main body 21 and the translucent cover 51. The protective cover 91 is arranged between the light source section 41 and the translucent cover 51. The protective cover 91 has translucency, and is made of, for example, a translucent resin material. The protective cover 91 is a substantially annular member in a plan view, and mainly includes an inner peripheral edge 92, a light source cover part 93, and an outer peripheral edge 94, as shown in FIGS. 12 and 13. The protective cover 91 can substantially cover the irradiation surface side of the bottom plate portion 24 of the instrument main body 21.

The inner circumferential edge portion 92 is a substantially annular portion located at the center of the protective cover 91 . The inner peripheral edge portion 92 is provided with a plurality of (in this embodiment, two) hook-shaped claw portions 92a for fitting into the through holes 24d provided on the inner peripheral side of the bottom plate portion 24 of the instrument main body 21. It is being The claw portion 92a can grip the end of the through hole 24d on the inner peripheral side of the bottom plate portion 24. When the claw part 92a is fitted into the through hole 24d, the inner peripheral edge part 92 of the protective cover 91 is in contact with the irradiation surface side of the inner peripheral edge part of the bottom plate part 24 of the instrument main body 21, or in a state with almost no gap. be in close proximity.

The light source cover part 93 has an annular shape in a plan view, is formed continuously on the radially outer side of the inner peripheral edge part 92, and has a predetermined gap with respect to the light source part 41. The light source cover part 93 includes, in order from the inner circumferential side, a first lens part 95 that is annular and convex in plan view, and a substantially convex first lens part 95 that has a predetermined width and is formed continuously on the outside of the first lens part 95 in the radial direction. It has an annular flat portion 96 and a second lens portion 97 that is annular and convex in plan view and is continuously formed on the radially outer side of the flat portion 96 . The first lens section 95 and the second lens section 97 of this embodiment are formed into an inverted U-shape when viewed in cross section. The first lens section 95 is arranged at a position that overlaps, in plan view, an LED element 42 arranged on the inside in the radial direction among the plurality of LED elements 42 arranged substantially concentrically on the substrate 43 of the LED light source module 44 . The second lens portion 97 is arranged at a position overlapping in plan view with the LED elements 42 arranged on the outside in the radial direction among the plurality of LED elements 42 arranged substantially concentrically on the substrate 43 of the LED light source module 44. .

When the light emitted from the plurality of LED elements 42 passes through, the first lens section 95 and the second lens section 97 reflect and diffuse the light while distributing the light to the outside. In this way, the first lens section 95 and the second lens section 97 can improve the degree of uniformity of light in the translucent cover 51.

Since the protective cover 91 continuously covers the plurality of LED elements 42 arranged by the first lens part 95 and the second lens part 97, it can be protected even if the number of arranged LED elements 42 is changed. It is highly versatile and can be used in any situation.

The flat portion 96 has a first protruding portion 96a that is convex upward on the surface side (mounting surface side) facing the substrate 43 of the LED light source module 44. The first protrusion 96a is arranged at a position corresponding to the adjacent ends (for example, the end 43a3 and the end 43b2) of the substrates 43a and 43b of the LED light source module 44. That is, the first protrusion 96a is provided so as to overlap both ends of the substrates 43a and 43b of the adjacent LED light source modules 44 in a plan view. The first protruding portion 96a is arranged approximately at the center of the flat portion 96 in the radial direction. The first protrusion 96a is formed in a frame shape surrounding a long hole 96b, which is a substantially linear through hole. When the protective cover 91 is attached to the light source attachment part 24a, the first protrusion part 96a comes into contact with both ends of the substrates 43a and 43b. By providing the first protrusion 96a on the protective cover 91 in this way, it is possible to ensure close contact between the vicinity of the ends of the substrates 43a and 43b of the LED light source module 44 and the instrument main body 21 (light source attachment part 24a), It is possible to prevent assembly defects such as adjacent LED light source modules being fixed in an overlapping state. Further, the first protruding portion 96a may be provided to press the substrates 43a, 43b toward the instrument main body 21 to further improve the adhesion between the end portions of the substrates 43a, 43b and the instrument main body 21. Furthermore, since the first protrusion 96a is provided so as to press a part of the LED light source module 44 (boards 43a, 43b), even if the protective cover 91 is mounted with some rotation on the light source mounting part 24a, Even if there is, the portion that slides on the surfaces of the substrates 43a, 43b of the LED light source module 44 can be reduced.
In this embodiment, one first protrusion 96a is provided, but a plurality of protrusions may be provided depending on the number of LED light source modules 44, etc. Further, in the present embodiment, the first protruding portion 96a is provided in a frame shape so as to abut both ends of the substrates 43a and 43b of the adjacent LED light source modules 44, but the present invention is not limited to this. For example, a plurality of first protrusions 96a may be provided, and the first protrusions 96a may have a column shape or the like that abut the ends of the substrates 43a and 43b, respectively.

Further, as described above, the elongated hole 96b, which is a through hole, is provided within the frame of the frame-shaped first protrusion 96a. The elongated hole 96b is provided at a position that overlaps the ends (specifically, the ends 43a3 and 43b2) of the substrates 43a and 43b of the adjacent LED light source modules 44 in a plan view. The operator can visually confirm part of the end portions of the substrates 43a and 43b of the adjacent LED light source modules 44 through the elongated hole 96b. Thereby, it is possible to visually check whether the mounting state of the boards 43a and 43b of adjacent LED light source modules 44 is appropriate, with no overlap or positional deviation between the boards 43a and 43b.

The flat portion 96 has a second protruding portion 96c that is convex upward on the mounting surface side. The second protruding portion 96c is formed in a substantially rectangular frame shape, and is a wire insertion portion (insertion hole 24b, cutout portion 43a4, The cutout portion 43b4, the insertion hole 35a1) and the light receiving hole portions (the light receiving window 43b7, the light receiving window 24c, and the light receiving window 35a2) are surrounded. The first protrusion 96a and the second protrusion 96c are arranged to face each other with respect to the center of the protective cover 91, which has a substantially circular shape in plan view. When the protective cover 91 is attached to the light source attachment part 24a, the second protrusion part 96c comes into contact with the irradiation side surface of the substrate 43 of the LED light source module 44. This prevents insects and dust that have entered through the wire insertion portion, light receiving hole, etc. from moving within the protective cover 91 over a wide range.

Inside the second protrusion 96c, there is a protrusion 98 that is substantially rectangular in plan view and bulges toward the irradiation surface in approximately half the area within the second protrusion 96c. The convex portion 98 is provided at a position corresponding to the above-described power insertion portion and the connector 45 (see FIG. 6) provided on the board 43, and connects the wiring extending from the power insertion portion to the mounting surface side and the connector provided on the board 43. It has a predetermined space for accommodating 45. Thereby, interference between the flat portion 96 and the wiring extending from the power supply insertion portion and the connector 45 can be prevented.

The flat portion 96 has a long convex portion 99 extending in the circumferential direction at a position corresponding to the screw fixing portion 46a of the substrate 43 described above for directly fixing with a screw member. The long convex portion 99 has a shape that bulges toward the irradiation surface side. The long convex portion 99 has a predetermined space for accommodating the head of a screw member or the like fixed to the screw fixing portion 46a. This can prevent interference between the flat portion 96 and the head of the screw member or the like.

The flat part 96 is provided with a screw fixing part 96d, which is a through hole for fastening the protective cover 91, the substrates 43a and 43b of the LED light source module 44, and the instrument body 21 together with a fixing member. The instrument body 21, the LED light source module 44, and the protective cover 91 are fastened together by screw members through the screw fixing portion 24f of the instrument body 21, the screw fixing portion 46a of the LED light source module 44, and the screw fixing portion 96d of the protective cover 91. be done. Thereby, the adhesion between the instrument main body 21 and the LED light source module 44 can be improved, and the positions of the LED light source module 44 and the protective cover 91 can be appropriately arranged. Moreover, since they are not fixed individually, the amount of fixing members such as screws and screws used is reduced, and the number of parts can be reduced, thereby reducing manufacturing costs.

The outer peripheral edge portion 94 is a substantially annular portion continuously formed around the light source cover portion 93 (second lens portion 97). The outer peripheral edge portion 94 has a plurality of (in this embodiment, two) hook-shaped claw portions 94a for fitting into the plurality of through holes 24d provided on the outer peripheral side of the bottom plate portion 24 of the instrument main body 21. It is provided. The claw portion 94a can clamp the end of the through hole 24d on the outer peripheral side of the bottom plate portion 24. When the claw portion 94a is fitted into the through hole 24d, the outer peripheral edge 94 of the protective cover 91 is in contact with the irradiation surface side of the outer peripheral edge of the bottom plate portion 24 of the instrument main body 21, or with almost no gap. be in close proximity.

[LED light source module installation procedure]
First, the LED light source module 44 is placed on the light source mounting portion 24a of the instrument body 21. At this time, the through holes 47 of the substrates 43 of the plurality of LED light source modules 44 are engaged with the convex portions 24g provided on the light source mounting portion 24a, and the substrates 43 are positioned at predetermined positions on the light source mounting portion 24a. .

Next, for each LED light source module 44, the screw fixing part 46a is directly attached to the screw fixing part 24f of the light source attachment part 24a using a screw member. Thereby, each LED light source module 44 is fixed while the periphery of the screw fixing part 46a of each LED light source module 44 is pressed toward the instrument main body 21 side.

Next, the protective cover 91 is rotated so that the claws 92a on the inner circumferential side and the claws 94a on the outer circumferential side of the protective cover 91 are aligned with the through holes 24d of the instrument main body 21 (bottom plate part 24). is temporarily fixed to the instrument body 21.

Next, using a screw member, connect the protective cover 91 and each LED light source module via the screw fixing part 96d of the protective cover 91, the screw fixing part 46b of each LED light source module 44, and the screw fixing part 24f of the light source mounting part 24a. 44. Tighten the instrument body 21 together. Thereby, each LED light source module 44 is fixed while the periphery of the screw fixing part 46b of each LED light source module 44 is pressed toward the instrument main body 21 side.

Further, when the protective cover 91 is attached, the first protruding part 96a and the second protruding part 96c provided on the protective cover 91 come into contact with both the ends of the substrates 43a and 43b of the adjacent LED light source modules 44. In addition, the planar portions of the inner peripheral end and the outer peripheral end of the protective cover 91 are in contact with the substrate 43 of each LED light source module 44 toward the device main body 21 side, or are close to each other with almost no gap. The substrate 43 is fixed to each LED light source module 44 by a protective cover 91 with the vicinity of the end of the substrate 43 in contact with the protective cover 91 . In this way, the substrate 43 of each LED light source module 44 has a screw fixing portion (radial center), a portion of the ends of adjacent substrates 43, an inner peripheral end, and an outer peripheral end. The board 43 is attached in contact with the instrument main body 21 and in close contact with the instrument main body 21 as a whole.

When the protective cover 91 is attached to the instrument body 21, the inner circumference of the light source cover part 93 (first lens part 95) and the outer circumference of the light source cover part 93 (second lens part 97) are connected to the LEDs, respectively. It comes into contact with the inner and outer peripheral ends of the substrate 43 of the light source module 44 . That is, the inner peripheral end and the outer peripheral end of the substrate 43 of the LED light source module 44 are held between the light source attachment part 24a of the instrument main body 21 and the light source cover part 93.

As described above, the protective cover 91 can be easily attached to the instrument main body 21 by fitting the claws 92a, 94a of the protective cover 91 into the through holes 24d of the instrument main body 21. In addition, by sandwiching the inner circumferential surface side and outer circumferential surface side end portions of the substrate 43 of the LED light source module 44 with the instrument main body 21, it is possible to improve the adhesion between the substrate 43 and the instrument main body 21.

In the lighting fixture 11 of this embodiment, the power supply section 31 has a power supply side connector section 37 on the side surface of the power supply case 35 facing the mounting section 71 . The power supply side connector section 37 includes a power supply side connector 34 electrically connected to the power supply circuit section 32 via wiring, and a power supply side connector holding section formed to protrude from the side surface of the power supply case 35 toward the mounting section 71 side. 35e. The power supply side connector holding section 35e holds the power supply side connector 34 in the power supply case 35 by inserting the distal end portion of the power supply side connector section 37 into the insertion hole 35f. By combining the power feeding side connector portion 37 with the power feeding side connector guide portion 76 of the mounting portion 71, the power feeding side connector 34 can be arranged inside the mounting portion 71.

If the power supply side connector section (power supply side connector) is provided in the mounting section in advance, the power supply section 31 and the mounting section 71 will be connected by wiring, which will make handling during assembly complicated. Further, for wiring work, a certain length of wiring must be used. On the other hand, as in the present embodiment, the power feeding side connector part 37 can be placed in a desired position simply by combining the power feeding side connector part 37 with the mounting part 71, which simplifies the assembly work. can. Further, since the wiring is not extended from the power supply section and fixed to a separate member such as a mounting section, the wiring distance between the power supply board and the power supply side connector can be set short.

In the lighting fixture 11 of this embodiment, the power supply section 31 has a channel changeover switch section 38 on the side surface of the power supply case 35 on the opposite side from the power supply side connector section 37. The channel changeover switch part 38 is combined with the through hole 25a of the instrument main body 21, and the channel changeover switch part 38 is exposed on the side surface of the peripheral wall part 25. The channel changeover switch section 38 is exposed on the irradiation surface side of the instrument main body 21 through the through hole 25a, and is easily visible to the user from the irradiation surface side. Further, since the channel changeover switch portion 38 is exposed on the irradiation surface side of the lighting fixture 11, channel setting work is easy.

In the lighting fixture 11 of this embodiment, as shown in FIG. 6, the substrates 43a and 43b of the LED light source module 44 have cutout portions 43a1 and 43b1 on the inner circumference side, respectively, and cutout portions 43a5 and 43b6 on the outer circumference side of the respective substrates 43a and 43b. has. A through hole 24d into which the inner claw part 92a and the outer claw part 94a of the protective cover 91 fit, respectively, is arranged at a position corresponding to the above-mentioned notch in the instrument main body 21 (bottom plate part 24). There is. This makes it possible to fix the ends of the substrates 43a, 43b near the inner and outer peripheries of the substrates 43a, 43b of the LED light source module 44, increasing the degree of adhesion near the ends of the substrates 43a, 43b. be able to.

11 Lighting fixture 21 Fixture main body 31 Power supply part 32 Power supply circuit part 33 Power supply board 34 Power supply side connector 35 Power supply case 35e Power supply side connector holding part 41 Light source part 61 Fixture upper cover (fixture cover)
71 Mounting part

Claims (1)

A lighting fixture that is attached to a mounting surface,
A light source part,
an instrument main body to which the light source section is attached to the irradiation surface side;
a power supply unit electrically connected to the light source unit;
an instrument cover attached to the mounting surface side of the instrument body;
a mounting portion attached to the mounting surface, disposed on the irradiation surface side of the instrument cover;
a plurality of cushioning materials attached to the mounting surface side of the instrument main body,
The instrument cover is
It has a mounting hole, a peripheral portion, a top plate portion, a peripheral wall portion, and a plurality of instrument mounting portions formed around the peripheral wall portion,
formed by the top plate portion and the peripheral wall portion to be concave upward in cross-sectional view and protrude toward the mounting surface side;
The plurality of instrument attachment parts are
formed in a flange shape extending radially outward from the lower end of the peripheral wall, and arranged alternately with notches in the circumferential direction of the peripheral wall,
The cushioning material is attached to a position corresponding to the notch ,
In the lighting fixture, the length of the notch in the circumferential direction corresponds to the length of the cushioning material in the longitudinal direction .

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