JP7137190B2 - Light source unit and lighting device - Google Patents

Description

The present invention relates to a light source unit and a lighting device having a plurality of spaced apart conductive pieces as wiring paths.

In recent years, as a light source unit provided with light emitting elements as a light source, there has been proposed a light source unit in which two adjacent conductive pieces are regarded as one set, and a plurality of light emitting elements are mounted so as to straddle a plurality of sets of conductive pieces (for example, patent Reference 1).

International Publication No. 2017/115862

However, although Patent Document 1 describes a light source unit corresponding to various lighting devices, the light source unit includes one or more light emitting modules and has an annular shape as a whole when viewed from the light emitting direction of the light emitting modules. has not been sufficiently considered.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an annular light source unit that uses a plurality of spaced apart conductive pieces as a wiring path, and an illumination device that includes the light source unit.

A light source unit according to the present invention includes one or more light emitting modules and is annular as a whole when viewed from the light emitting direction of the light emitting modules, wherein the light emitting modules are adjacent to each other at intervals in the annular direction. A wiring body including a plurality of sets of two conductive pieces as one set of wiring paths along the annular direction, and one or more light emitting elements mounted so as to straddle the two conductive pieces, The conductive piece includes a base portion extending along the annular direction, a first extending portion extending from one end portion of the base portion in the annular direction in a direction intersecting the base portion, and the other portion of the base portion extending in the annular direction. a second extending portion extending from an end portion in the intersecting direction, and the two conductive pieces include the first extending portion of one of the conductive pieces and the second extending portion of the other conductive piece. are arranged to face each other, and the light emitting element is mounted on the facing portion.

A lighting device according to the present invention is a lighting device comprising one or more light-emitting modules and a light source unit that has an annular shape as a whole when viewed from the light emitting direction of the light-emitting modules, wherein the light source unit is the light source unit described above. .

According to the above configuration, it is possible to obtain an annular light source unit and a lighting device including the light source unit.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the illuminating device which concerns on embodiment, (a) is the figure seen from front side, (b) is the figure seen from the back side. It is a sectional view of an illuminating device. It is the perspective view which looked at the disassembled state of the illuminating device from the front side. It is the perspective view which looked at the disassembled state of the illuminating device from the back side. (a) is the figure which looked at the instrument main body from the front side, (b) is the figure which looked at the instrument main body from the back side. It is a perspective view of a surface light source unit, (a) is the figure seen from the front side, (b) is the figure seen from the back side. It is the perspective view which looked at the decomposition|disassembly state of the surface light source unit from the front side. (a) is a perspective view of the surface emitting module before connection, (b) is a perspective view of the surface emitting module after connection, and (c) is a front first wiring body and a front second wiring body in a connected state. is a perspective view of the. It is a perspective view of a back light source unit, (a) is the figure seen from front side, (b) is the figure seen from the back side. It is the perspective view which looked at the decomposition|disassembly state of the back light source unit from the back side. (a) is a perspective view of the back light emitting module before connection, (b) is a perspective view of the back light emitting module after connection, and (c) is a back first wiring body and a back second wiring body in a connected state. is a perspective view of the. It is the perspective view which looked at the disassembled state of the power supply unit from the front side. It is the perspective view which looked at the disassembled state of the power supply unit from the back side. It is a perspective view which shows the disassembled state of a light source cover. Fig. 3 shows a lighting device with different types of shades; Fig. 3 shows a lighting device with different types of shades; Fig. 2 shows different types of light source units; Figures 4A and 4B show different types of suspension members;

<Overview>
A light source unit according to an aspect of an embodiment is a light source unit that includes one or more light emitting modules and has an annular shape as a whole when viewed from the light emitting direction of the light emitting modules, wherein the light emitting modules are spaced apart in the annular direction. a wiring body provided with a plurality of sets of two adjacent conductive pieces as one set of wiring paths along the annular direction, and one or a plurality of light emitting elements mounted so as to straddle the two conductive pieces. The conductive piece includes a base portion extending along the annular direction, a first extending portion extending from one end portion of the base portion in the annular direction in a direction intersecting the base portion, and the annular portion of the base portion. and a second extending portion extending in the intersecting direction from the other end of the direction, and the two conductive pieces are arranged such that the first extending portion of one of the conductive pieces and the second extending portion of the other conductive piece 2 extending portions are arranged to face each other, and the light emitting element is mounted on the facing portion.
In a light source unit according to another aspect of the embodiment, an inner light emitting module in which the base portion is located on the center side of the annular shape with respect to the first extending portion and the second extending portion; At least one of an outer light emitting module and an outer light emitting module in which the base portion is located on the side opposite to the center side of the annular shape with respect to the extending portion is provided. Thereby, an annular light source unit is obtained.

In the light source unit according to another aspect of the embodiment, the inner light emitting module has a ring shape, the outer light emitting module has a ring shape, and the outer light emitting module comprises one of the conductive pieces constituting the inner light emitting module. Between the first extending portion and the second extending portion of the outer light emitting module, the first extending portion of one of the two conductive pieces adjacent in the annular direction and the first extending portion of the other conductive piece 2 extending portions are positioned. Thereby, the light emitting elements can be mounted at high density.
In a light source unit according to another aspect of the embodiment, the color temperature of the light emitting elements of the inner light emitting module and the color temperature of the light emitting elements of the outer light emitting module are different. Thereby, a light source unit that can be adjusted in color is obtained.
In the light source unit according to another aspect of the embodiment, the inner light emitting module and the outer light emitting module are electrically connected, and the inner light emitting module and the outer light emitting module form one ring. The color temperature of the light emitting elements of the light emitting module and the color temperature of the light emitting elements of the outer light emitting module are the same. Thereby, the conductive piece can be effectively used.
In a light source unit according to another aspect of the embodiment, the two conductive pieces are reinforced by dummy elements mounted on the facing portions. This can be cheaply reinforced.
A lighting device according to an aspect of an embodiment is a lighting device that includes one or more light emitting modules and a light source unit that has an annular shape as a whole when viewed from the light emitting direction of the light emitting module, wherein the light source unit is the above light source. is a unit.

<Embodiment>
In the embodiment, as an example of a so-called hanging type lighting device A that is detachably attached to a mounting surface such as a ceiling via a hanging member, as shown in FIG. A pendant light provided with a cord (suspension member 1) 10 for a wiring device (not shown) will be described.
Here, in the lighting device A, the side on which the mounting surface exists is the back side, and the side opposite to the mounting surface is the front side.

1. Overall Outline Description will be made mainly with reference to FIGS. 2 to 4. FIG.
The lighting device A includes at least a fixture body 2 and a light source unit 3 . The light source unit 3 here includes at least the front light source unit 3 arranged on the front side of the fixture body 2, and also includes the back light source unit 4 arranged on the back side of the fixture body 2 here. The lighting device A may comprise a power supply unit 5 (see FIG. 2). The illumination device A may include a light source cover 6 that covers the two light source units 3,4. Here, the light source cover 6 includes a front light source cover 6A for the front light source unit 3 and a back light source cover 6B for the back light source unit 4. FIG. The lighting device A may include a shade 7 that covers the fixture body 2 from the mounting surface (ceiling) side.
A lighting device A as a pendant light includes a suspension member 1, a fixture body 2, light source units 3 and 4, a power supply unit 5, a light source cover 6, and a shade 7. The lighting device A further includes a pull switch 8 as an example of an operation unit for turning on/off the light.
The suspension member 1 has a cord housing 11 at one end (front side end) of the cord 10 and a hook sealing 12 at the other end (back side end).
The instrument main body 2 has its central part bulging to the back side, the bulging part 25 is attached to the hanging member 1, the power supply unit 5 is arranged in the bulging part 25, and the power supply unit 5 of the instrument main body 2 is arranged around the power supply unit 5. An annular front light source unit 3 is mounted on the front surface, and an annular back light source unit 4 is mounted on the back surface.
Each part will be described below.

2. Suspension Member A description will be given with reference to FIGS. 2 to 4. FIG.
The hanging member 1 has a function of connecting to a wiring device (not shown) provided on the installation surface to receive power from the wiring device and a function of supporting the lighting device A in a suspended state.
The suspension member 1 includes a hook ceiling 12 connected to the wiring device, a hook cover 13 made of resin covering the outside of the hook ceiling 12, and a cord 10 connected to a hook blade (not shown) of the hook ceiling 12. , and a cord housing 11 for accommodating the excess portion of one end of the cord 10 . A connector 14 is attached to one end of the cord 10, and the connector 14 is connected to the connector 58 on the power supply unit 5 side.

As shown in FIG. 2, the cord housing 11 has a bushing 112 in an upper through hole of a housing body 111 having a lidded cylindrical shape, and as shown in FIG. The projecting housing side engaging portion 113 engages with the instrument side engaging portion 254 (see FIG. 5B) of the instrument body 2 .
As shown in FIG. 2, the front side opening of the housing body 111 forms a stepped portion 114 that spreads outward, and the peripheral portion of the opening of the collar portion 77 of the shade 7 is supported by the stepped portion 114 .

3. Fixture Main Body The fixture main body 2 includes a suspension member mounting portion for detachably mounting the suspension member 1, a power unit mounting portion for mounting the power supply unit 5, and a light source unit mounting portion for mounting the light source unit 3. , a light source cover mounting portion for mounting the light source cover 6 and a switch mounting portion for mounting the pull switch 8 .

Description will be made with reference to FIG.
The device main body 2 has a circular outer peripheral shape and a central portion that bulges to the back side.
The appliance main body 2 has an annular plate portion 21 and a bulging portion 25 that bulges from the inner peripheral edge of the annular plate portion 21 to the back side. Here, the annular plate portion 21 has an annular shape.
As shown in FIG. 2, the front light source unit 3 is mounted on the front side of the annular plate portion 21, the back light source unit 4 is mounted on the back side of the annular plate portion 21, and the power supply unit 5 (of the back side) is accommodated.

(1) Annular Plate Portion As shown in FIG. 5 , the annular plate portion 21 has an annular flat plate portion 211 .
The annular plate portion 21 has a recessed portion 212 recessed in the back side of the flat plate portion 211 and extending in the radial direction.
(1-1) Front Side Description will be made mainly using FIG. 5(a).
The surface of the flat plate portion 211 contacts the back surface of the front tray 38 (see FIG. 4) that constitutes the front light source unit 3 . A front cable 591 (see FIG. 3) for supplying power to the front light source unit 3 is arranged on the front side of the recessed portion 212 . Thereby, the adhesion between the front tray 38 and the flat plate portion 211 can be improved.
The annular plate portion 21 has a front inner brim portion 213 extending from the inner peripheral edge of the flat plate portion 211 to the front side. The front inner flange portion 213 faces or approaches the front tray inner flange portion 382 (see FIG. 7) of the front tray 38 . As a result, rattling of the front tray 38 inward in the radial direction can be suppressed.
The annular plate portion 21 has a front outer brim portion 214 extending from the outer peripheral edge of the flat plate portion 211 to the front side. The front outer flange portion 214 faces or approaches the front tray outer flange portion 383 (see FIG. 7) of the front tray 38 . As a result, rattling of the front tray 38 toward the outside in the radial direction can be suppressed.
Note that the front inner brim portion 213 and the front outer brim portion 214 are continuously provided in the circumferential direction except for the portion where the recessed portion 212 is formed.

The annular plate portion 21 has a plurality of front inner projecting portions 215 projecting radially outward (flat plate portion 211) from the front edge of the front inner brim portion 213 at intervals in the circumferential direction. . The annular plate portion 21 has a plurality of outer projecting portions 216 projecting radially inward (flat plate portion 211) from the front edge of the outer collar portion 214 at intervals in the circumferential direction. . The front inner projection portion 215 and the front outer projection portion 216 are engaged with the surfaces of the front tray inner flange portion 382 and the front tray outer flange portion 383 of the front tray 38 . As a result, the front light source unit 3 is locked to the surface of the annular plate portion 21 .
The annular plate portion 21 has screw holes 217 for fixing the front tray 38 . As a result, the front light source unit 3 is fixed to the fixture body 2 with screws 91 (see FIGS. 3 and 4). An insert screw, for example, can be used as the screw hole 217 .

(1-2) Back side Description will be made mainly using FIG. 5(b).
The annular plate portion 21 has a circumferential rib 221 extending in the circumferential direction and a radial rib 222 extending in the radial direction on the back surface of the flat plate portion 211 . There are a plurality of (for example, three) circumferential ribs 221 concentrically. There are a plurality of radial ribs 222 (for example, 12) spaced apart in the circumferential direction. The circumferential rib 221 is not formed in the portion where the recessed portion 212 exists and in the portion between radial ribs 222a and 222b adjacent in the circumferential direction.
The rear surfaces of the circumferential rib 221 , the radial rib 222 and the recessed portion 212 are in contact with the surface of the rear tray 48 (see FIG. 3) that constitutes the rear light source unit 4 . At this time, the circumferential rib 221 and the radial rib 222 have the same height, and the rear surfaces of the circumferential rib 221, the radial rib 222 and the recessed portion 212 are flush with each other. As a result, the back light source unit 4 can be evenly abutted on the back tray 48 and the back light source unit 4 can be stably supported.
A back cable 593 (see FIGS. 3 and 4) for supplying power to the back light source unit 4 is arranged on the back side of the portion where the circumferential rib 221 is formed between the radial ribs 222a and 222b. Thereby, the adhesion between the peripheral rib 221, the radial rib 222, the recessed portion 212 and the back tray 48 can be improved.

The annular plate portion 21 has a back inner brim portion 223 extending from the inner peripheral edge of the flat plate portion 211 to the back side. The back inner brim portion 223 faces or is close to the back tray inner brim portion 482 (see FIG. 10) of the back tray 48 . As a result, the back tray 48 can be prevented from rattling inward in the radial direction.
The annular plate portion 21 has a back outer brim portion 224 extending from the outer peripheral edge of the flat plate portion 211 to the back side. The back outer flange portion 224 faces or is close to the back tray outer flange portion 483 (see FIG. 10) of the back tray 48 . As a result, rattling of the back tray 48 toward the outside in the radial direction can be suppressed.
In addition, the back inner brim portion 223 and the back outer brim portion 224 are continuously provided in the circumferential direction except between the radial ribs 222a and 222b. The back inner brim portion 223 and the back outer brim portion 224 are higher than the circumferential rib 221, the radial rib 222 and the recessed portion 212 (the amount of extension to the back side is large).

The annular plate portion 21 has a plurality of back inner projecting portions 225 projecting radially outward (flat plate portion 211) from the back edge of the back inner brim portion 223 at intervals in the circumferential direction. . The annular plate portion 21 has a plurality of rear outer protruding portions 226 protruding radially inward (flat plate portion 211) from the rear edge of the rear outer flange portion 224 at intervals in the circumferential direction. . The back inner protruding portion 225 and the back outer protruding portion 226 are engaged with the back surfaces of the back tray inner flange portion 482 and the back tray outer flange portion 483 of the back tray 48 . As a result, the back light source unit 4 is locked to the back surface of the annular plate portion 21 .
The annular plate portion 21 has screw holes 227 for fixing the back tray 48 . As a result, the back light source unit 4 is fixed to the fixture body 2 with screws 92 (see FIGS. 3 and 4). An insert screw, for example, can be used as the screw hole 227 .

(2) Protruding Portion The protruding portion 25 accommodates a portion of the power supply unit 5 (a portion located on the protruding side of the protruding portion 25) and the pull switch 8, as shown in FIG. A power supply circuit 51 and a power supply cover 55 (see FIGS. 12 and 13) of the power supply unit 5 are attached to the bulging portion 25 .
As shown in FIG. 5(b), the bulging portion 25 has a stepped tubular shape with a lid and a lid portion 251, a front tubular portion 252 and a rear tubular portion 253. As shown in FIG.
The protruding portion 25 includes an appliance side engaging portion 254 that engages with the housing side engaging portion 113 (see FIG. 3) of the cord housing 11 of the suspension member 1, and the cord housing 11 and the back light source cover 6B to the appliance main body 2. It has a threaded hole 256 for fixing to. An insert screw, for example, can be used as the screw hole 256 .

The through holes 251a and 251b of the lid portion 251 are for positioning and fixing the pull switch 8. As shown in FIG. A through hole 251c of the lid portion 251 is for a connector 58 that connects with the connector 14 of the cord 10 shown in FIG. The connector 58 is connected to the power supply unit 5 (power supply circuit 51).
The bulging portion 25 has a boss portion 257 extending from the surface of the lid portion 251 to the front side, a screw hole 258 formed in the boss portion 257 , and a vertical rib 259 on the inner peripheral surface of the front cylinder portion 252 . is doing. The power supply board 513 (see FIGS. 13 and 14) of the power supply unit 5 is supported from the rear side by the vertical ribs 259 and the boss portion 257, and screws (not shown) inserted through the through holes of the power supply board 513 are attached to the boss portion 257. It is attached to the instrument body 2 by screwing it into the screw hole 258 .

As shown in FIG. 5A, the bulging portion 25 has a plurality of bulging portions 25 spaced apart in the circumferential direction from the instrument side engaging portion 261 that engages with the bulging piece 551a of the cylindrical portion 551 of the power supply cover 55. is doing. As a result, the power supply cover 55 is locked to the instrument body 2 . The bulging portion 25 has a screw hole 262 for fixing the power supply cover 55 . Thereby, the power supply cover 55 is fixed to the instrument main body 2 . An insert screw, for example, can be used as the screw hole 262 .
As shown in FIG. 5B, the bulging portion 25 has a plurality of recesses 264 for reinforcement in the lid portion 251 along the circumferential direction. Therefore, as shown in FIG. 5(a), when the surface of the recess 264 is used as a reference, an outer recess 265 recessed to the back side exists on the outer peripheral side. In addition, in FIG. 5A, the lead line of the outer recess 265 is indicated by an arrow to distinguish it from the lead line of the back cylinder portion 253. As shown in FIG.
The instrument side engaging portion 254 provided on the lid portion 251 is located on the back side of the outer recess 265, as shown in FIG. 5B, and has a through hole 254a for forming the instrument side engaging portion 254. . In order to prevent insects from entering through the through hole 254a, the outer recess 265 is closed with a cover sheet 97 shown in FIGS.

4. Light Source Unit As shown in FIGS. 3 and 4, the light source unit has a front light source unit 3 that illuminates the front side and a back light source unit 4 that illuminates the back side, as described above.
The front light source unit 3 and the back light source unit 4 are ring-shaped when viewed from the direction of light emission, and are attached to the fixture main body 2 in a state where the center coincides with or is close to the central axis of the fixture main body 2 (the bulging portion 25 thereof). is installed. This makes the orientation of the front and back sides of the instrument body 2 uniform with respect to the central axis of the instrument body 2 .

(1) Surface light source unit The surface light source unit 3 has an annular shape as shown in FIG. 6(a), and as shown in FIG. . That is, the surface light-emitting modules 31A, 31B, and 31C have an arc shape of 1/3 circle. When it is not necessary to distinguish between the surface emitting modules 31A, 31B, and 31C, they will be described as the surface emitting modules 31, and indicated by "31A", "31B", and "31C" in FIG.
do.

As shown in FIG. 7, the front light emitting module 31 has a front first LED element 32 that emits a first emission color (e.g. light bulb color) and a front second LED element 33 that emits a second emission color (e.g. daylight color). Have on the road. Thereby, the toning control of the front light source unit 3 becomes possible.
The front light emitting modules 31 (31A, 31B, 31C) are the front inner light emitting modules 34 (34A, 34B, 34C) located on the center side of the ring, and the front outer light emitting modules 35 located on the opposite side of the center of the ring. (35A, 35B, 35C).
Here, the front inner light emitting module 34 corresponds to an example of the "inner light emitting module" of the present invention, and the front outer light emitting module 35 corresponds to an example of the "outer light emitting module" of the present invention.
The front light-emitting module 31 is mounted on the front tray 38 and attached to the annular plate portion 21 of the fixture body 2 . When there is no need to distinguish between the front-side light-emitting modules 34A, 34B, and 34C, they will be described as the front-side light-emitting modules 34, and indicated by "34A", "34B", and "34C" in FIGS. . Similarly, when there is no need to distinguish between the front-side light-emitting modules 35A, 35B, and 35C, the front-side light-emitting modules 35 will be described, and in FIGS. show.

(1-1) In-Front Light-Emitting Module Description will be made mainly with reference to FIG.
The front inner light emitting module 34 (34A, 34B) includes a front first LED element 32 and a front first wiring body 36 (36A, 36B), as shown in FIG. 8(a). The first LED element 32 in the table corresponds to an example of the "light emitting element of the inner light emitting module" of the present invention.
There are a plurality of first LED elements 32 (for example, 60 in the entire module), and they are connected in one or a plurality of parallel and plural series (for example, 2 parallel and 30 series). The color temperature of the light emitted by the front first LED element 32 is 6,500 [K].
As shown in FIG. 8(c), the front first wiring body 36 (36A, 36B) is a set of two conductive pieces 361, 361 adjacent to each other with an interval in the annular direction (circumferential direction). A plurality of sets are provided along the annular direction as a wiring path. Here, since the light source units 3 and 4 are annular, the annular direction is the annular direction.

The conductive piece 361 is made of, for example, a metal plate (for example, tinned steel plate). When using a metal plate, for example, it is punched into a desired shape by a press. A reflective film is formed on the surface of the conductive piece 361 (mounting surface of the front first LED element 32). White paint, for example, can be used as the reflective film.
As shown in FIG. 8C, the conductive piece 361 has a base portion 362 extending along an annular shape and a first extending portion extending from one end of the base portion 362 in the annular direction in a direction orthogonal to the base portion 362. 363 and a second extending portion 364 extending in the orthogonal direction from the other end portion of the base portion 362 in the annular direction. Note that the base portion 362 is located on the center side of the ring.
As shown in FIG. 8(b), two conductive pieces 361a and 361b adjacent in the annular direction have a first extending portion 363a of one conductive piece 361a and a second extending portion 364b of the other conductive piece 361b. are arranged to face each other, and one or a plurality of (here, two) front first LED elements 32 are mounted on the facing portion. Here, the opposing portions of the first extending portion 363a and the second extending portion 364b extend in the radial direction, and two front first LED elements 32 are mounted with a gap in the radial direction.

The front inner side light emitting module 34 has a fixing portion for mounting on the front tray 38 . For fixing, a plurality of pin portions 384 of the front tray 38 shown in FIG. 7 are used. For this reason, the front inner side light emitting module 34 has holes and recesses through which the pin portions 384 are inserted. Here, as shown in (a) of FIG. 8, it is configured by a recess 362a of the base portion 362 of the conductive piece 361 and recesses 366 of the first extending portion 363 and the second extending portion 364 (see (b) of FIG. 8). be.

As shown in FIG. 8A, the front first wiring bodies 36 (36A, 36B) are electrically connected to the front first wiring bodies 36 (36A, 36B) of the other front inner light emitting modules 34 adjacent in the annular direction. It has terminal portions 367 and 368 that are directly connected. The terminal portions 367 and 368 are composed of one member obtained by cutting the conductive piece 361 at the base portion 362 . The terminal portion 367 is, for example, a high potential side terminal, and the terminal portion 368 is a low potential side terminal.
At the time of connection, as shown in FIG. 8(b), the terminal portion 367 of the other front-side light emitting module 34B adjacent in the annular direction is overlapped with the terminal portion 368 of the front-side light emitting module 34A, and soldered, pinned, or the like. combined.

(1-2) Outer Surface Light-Emitting Module Description will be made mainly with reference to FIG.
As shown in FIG. 8A, the front-outside light-emitting modules 35 (35A, 35B) include front second LED elements 33 and front second wiring bodies 37 (37A, 37B). The second LED element 33 in the table corresponds to an example of the "light emitting element of the outer light emitting module" of the present invention.
There are a plurality of second LED elements 33 (for example, 60 in the entire module), and they are connected in one or a plurality of parallel and plural series (for example, 2 parallel and 30 series). The color temperature of the light emitted by the front second LED element 33 is 2,700 [K].
As shown in (c) of FIG. 8, the front second wiring body 37 (37A, 37B) connects two conductive pieces 371, 371 adjacent to each other with an interval in the annular direction (circumferential direction) as one set of wiring. A plurality of sets are provided along the annular direction as a path.

The conductive piece 371 is made of, for example, a metal plate (for example, tinned steel plate). When using a metal plate, for example, it is punched into a desired shape by a press. A reflective film is formed on the surface of the conductive piece 371 (mounting surface of the front second LED element 33). White paint, for example, can be used as the reflective film.
As shown in FIG. 8C, the conductive piece 371 has a base portion 372 extending along an annular shape and a first extending portion extending from one end of the base portion 372 in the annular direction in a direction perpendicular to the base portion 372. 373 and a second extending portion 374 extending from the other annular end of the base portion 372 in the orthogonal direction. Note that the base portion 372 is located on the side opposite to the center side of the ring.
As shown in (b) of FIG. 8, two conductive pieces 371a and 371b adjacent in the annular direction are formed into a first extending portion 373a of one conductive piece 371a and a second extending portion 374b of the other conductive piece 371b. are arranged to face each other, and one or a plurality of (here, two) front second LED elements 33 are mounted on the facing portion. Here, the opposing portions of the first extending portion 373a and the second extending portion 374b extend in the radial direction, and two front second LED elements 33 are mounted with a gap in the radial direction.

The front-outside light-emitting module 35 has a fixing portion for mounting on the front tray 38 . The front tray 38 here is made of a thermoplastic resin material, and is fixed using a plurality of pin portions 384 integrally formed on the front tray 38 shown in FIG. For this reason, the front-side light emitting module 35 has holes and recesses through which the pin portions 384 are inserted.
Here, as shown in (a) of FIG. 8, it is constituted by a recess 372a of the base portion 372 of the conductive piece 371 and recesses 376 of the first extending portion 373 and the second extending portion 374 (see (b) of FIG. 8). be.

As shown in FIG. 8A, the front second wiring bodies 37 (37A, 37B) are electrically connected to the front second wiring bodies 37 (37A, 37B) of the other front outer light emitting modules 35 adjacent in the annular direction. It has terminal portions 377 and 378 that are directly connected. The terminal portions 377 and 378 are formed of one member obtained by cutting the conductive piece 371 at the base portion 372 . The terminal portion 377 is, for example, a high potential side terminal, and the terminal portion 378 is a low potential side terminal.
At the time of connection, as shown in (b) of FIG. 8, the terminal portion 377 of the other front-side light emitting module 35B adjacent in the annular direction is superimposed on the terminal portion 378 of the front-side light emitting module 35A, and soldered, pinned, or the like. combined.

(1-3) Arrangement The front light emitting module 31, as shown in FIG. A first extending portion 373a of one conductive piece 371a and a second extending portion 374b of the other conductive piece 371b, which constitute the front-side light emitting module 35 (35A) and are adjacent in the annular direction, are located between the portion 364c and the portion 364c. It is arranged so that
As shown in FIG. 8(b), the front light emitting module 31 is located between the first extending portion 373c and the second extending portion 374c of one conductive piece 371c constituting the front outer light emitting module 35 (35B). , and arranged so that the first extending portion 363a of one conductive piece 361a and the second extending portion 364b of the other conductive piece 361b, which constitute the front inner side light emitting module 34 (34B) and are adjacent in the annular direction, are positioned. ing.
In other words, the facing portion between the first extending portion 363 and the second extending portion 364 of the two adjacent conductive pieces 361 of the front inner light emitting module 34 and the first extension portion of the two adjacent conductive pieces 371 of the front outer light emitting module 35 The conductive pieces 361 of the front-inner light emitting module 34 and the conductive pieces 371 of the front-outer light emitting module 35 are combined so that the extending portions 373 and the facing portions of the second extending portions 374 are alternately positioned in the annular direction. .
Thereby, a plurality of LED elements 32 and 33 can be mounted at high density. In addition, each of the plurality of front first LED elements 32 and front second LED elements 33 can be arranged on double concentric circles (or portions close to concentric circles), thereby reducing luminance unevenness.

(1-4) Front Tray As shown in FIGS. 6A and 7, the front tray 38 has the same shape as the front light emitting module 31 when viewed from the light emitting direction. That is, the shape of the front tray 38 when viewed from the front side is annular.
The front tray 38, as shown in FIG. It has a front tray outer brim portion 383 extending from the outer peripheral edge to both the front and back sides.
The front light emitting module 31 (31A, 31B, 31C) is mounted on the surface of the front annular plate portion 381. As shown in FIG.
The front tray 38 has a front fixing portion for fixing the front light emitting module 31 on the front annular plate portion 381 . As described above, the front side fixing portion includes the depressions 362a and 366 of the front first wiring bodies 36 (36A and 36B) and the depressions 372a and 372a of the front second wiring bodies 37 (37A and 37B) shown in FIG. A pin portion 384 (see FIG. 7) through which the 376 is inserted is used, and the tip of the pin portion 384 is melted after the insertion. By melting, the melted portion is larger than the depressions 362a, 372a, 366, 376 and engages the peripheral portions of the depressions 362a, 372a, 366, 376 in the front first wiring body 36 and the front second wiring body 37. .

The front tray 38, as shown in FIG. 7, has a ridge 385 formed corresponding to the connecting portion of the three front light emitting modules 31A, 31B, 31C. The ridges 385 protrude into gaps existing between the adjacent surface emitting modules 31 and position the surface emitting modules 31 .
As shown in FIG. 6, the front tray 38 has locking portions 386 for fixing (locking) the connection-side ends of the front cables 591 for supplying power to the front light emitting module 31 . The locking portion 386 has a "C" shape, and the front cable 591 is inserted into the opening portion.

The front tray inner collar portion 382 has a front inner recessed portion 382a that is recessed from the inner peripheral side toward the outer peripheral side. The front tray outer flange portion 383 has a front outer recessed portion 383a that is recessed from the outer peripheral side toward the inner peripheral side.
When the front light source unit 3 is attached to the fixture body 2, the front inner protruding part 215 of the front inner brim part 213 of the annular plate part 21 of the fixture body 2 is attached to the front inner concave part 382a and the front outer concave part 383a. and the outward projecting portion 216 of the outward flange portion 214 are fitted. In this fitted state, by rotating the front light source unit 3 around the center of the front light source unit 3 as a rotation axis, the front inner protruding portion 215 is attached to the front tray inner flange portion 382 of the front tray 38. The projecting portions 216 are engaged with the front tray outer collar portions 383 of the front tray 38 respectively.
The front tray 38 has a through-hole 382c in an overhanging piece 382b projecting from the inner peripheral edge toward the center. It is fixed to the instrument body 2 by screwing it into the screw hole 262 (see FIG. 5(a)).

The front tray 38 has a circumferential rib 387 extending in the circumferential direction and a radial rib 388 extending in the radial direction on the back surface of the front annular plate portion 381 . The front tray 38 has a front groove portion 389 which is recessed from the rear surface to the front surface and extends in the radial direction. The front groove portion 389 accommodates a front cable 591 that connects to the front outer light emitting module 35 . As a result, when the front light source unit 3 is attached to the fixture main body 2, rattling caused by the front cable 591 can be eliminated.

(2) Back Light Source Unit The back light source unit 4 has an annular shape as shown in FIG. 9(a), and as shown in FIG. 10, three back light emitting modules 41A, 41B, and 41C form a circle. . In other words, the rear light-emitting modules 41A, 41B, and 41C have an arc shape of 1/3 circle. When there is no need to distinguish between the rear light emitting modules 41A, 41B, and 41C, they will be described as the rear light emitting modules 41, and indicated by "41A", "41B", and "41C" in FIG.

As shown in FIG. 10, the rear light emitting module 41 has a rear first LED element 42 that emits a first emission color (for example, daylight white) and a rear second LED element 43 that emits a second emission color (for example, daylight color). Have on the road. Thereby, the toning control of the back light source unit 4 becomes possible. The rear light emitting modules 41 (41A, 41B, 41C) are composed of rear inner light emitting modules 44 (44A, 44B, 44C) positioned on the center side of the ring and rear outer light emitting modules 45 positioned on the opposite side of the ring center. (45A, 45B, 45C).
Here, the back inner light emitting module 44 corresponds to an example of the "inner light emitting module" of the present invention, and the back outer light emitting module 45 corresponds to an example of the "outer light emitting module" of the present invention.
The back light-emitting module 41 is mounted on the back tray 48 and attached to the annular plate portion 21 of the fixture body 2 . When it is not necessary to distinguish between the back and inside light-emitting modules 44A, 44B, and 44C, they will be described as the back and inside light-emitting modules 44, and indicated by "44A,""44B," and "44C" in FIGS. . Similarly, when there is no need to distinguish between the back-outside light-emitting modules 45A, 45B, and 45C, they will be described as the back-outside light-emitting modules 45, and in FIGS. show.

(2-1) Inner Light Emitting Module Description will be made mainly with reference to FIG.
The rear inner light emitting module 44 (44A, 44B) includes a rear first LED element 42 and a rear first wiring body 46 (46A, 46B), as shown in FIG. 11(a). The rear first LED element 42 corresponds to an example of the "light emitting element of the inner light emitting module" of the present invention.
There are a plurality of rear first LED elements 42 (eg, 36 in the entire module), and they are connected in one or multiple parallel multiple series (eg, 1 parallel 36 series). The color temperature of the light emitted by the rear first LED element 42 is 6,500 [K].
As shown in (c) of FIG. 11, the back first wiring body 46 (46A, 46B) includes two conductive pieces 461, 461 adjacent to each other with an interval in the annular direction (circumferential direction) as one set of wiring. A plurality of sets are provided along the annular direction as a path.

The conductive piece 461 is made of, for example, a metal plate (for example, tinned steel plate). When using a metal plate, for example, it is punched into a desired shape by a press. A reflective film is formed on the surface of the conductive piece 461 (mounting surface of the rear first LED element 42). White paint, for example, can be used as the reflective film.
As shown in FIG. 11C, the conductive piece 461 has a base portion 462 extending along an annular shape and a first extending portion extending from one end of the base portion 462 in the annular direction in a direction orthogonal to the base portion 462. 463 and a second extending portion 464 extending in the orthogonal direction from the other annular end of the base portion 462 . Note that the base portion 462 is located on the center side of the ring.
As shown in FIG. 11(b), two conductive pieces 461a and 461b adjacent in the annular direction are formed into a first extending portion 463a of one conductive piece 461a and a second extending portion 464b of the other conductive piece 461b. are arranged to face each other, and one or a plurality of (here, one) rear first LED elements 42 are mounted on the facing portion. Here, the facing portion between the first extending portion 463a and the second extending portion 464b extends in the radial direction, and one rear first LED element 42 is mounted on the base portion 462 side.

Two conductive pieces 461, 461 adjacent in the annular direction are reinforced by a dummy element 49 mounted on the mounting surface of the rear first LED element 42, as shown in FIG. 11(a). Here, the dummy element 49 is mounted straddling between the facing bases 472 and 472 of the adjacent conductive pieces 461 and 461 and between the facing first and second extending portions 463 and 464 . The dummy elements 49 are provided on both sides of the rear first LED element 42 in the radial direction. The dummy element 49 is normally composed of a chip resistor having an infinite resistance, and has a configuration in which even if the conductive pieces 461a and 461b are short-circuited, there is no problem in terms of the circuit.

The back inner light emitting module 44 has a fixing portion for mounting on the back tray 48 . For fixing, a plurality of pin portions 484 of the back tray 48 shown in FIG. 10 are used. For this reason, the back inner light emitting module 44 has holes and recesses through which the pin portions 484 are inserted.
Here, as shown in FIG. 11(a), it is composed of a recess 462a of the base portion 462 of the conductive piece 461 and recesses 466 of the first extending portion 463 and the second extending portion 464 (see FIG. 11(b)). be.

The rear first wiring bodies 46 (46A, 46B) are electrically connected to the rear first wiring bodies 46 (46A, 46B) of the other rear inner light-emitting modules 44 adjacent in the annular direction, as shown in FIG. 11(a). It has terminal portions 467 and 468 for direct connection. The terminal portions 467 and 468 are formed as one member by cutting the conductive piece 461 at the base portion 462 . The terminal portion 467 is, for example, a high potential side terminal, and the terminal portion 468 is a low potential side terminal.
At the time of connection, as shown in FIG. 11B, the terminal portion 468 of the back inner light emitting module 44A is superimposed on the terminal portion 467 of the other back inner light emitting module 44B adjacent in the annular direction, and the terminals are connected by soldering, pins, or the like. combined.

(2-2) Rear-Outside Light-Emitting Module Mainly referring to FIG. 11, description will be made.
The rear outer light emitting module 45 (45A, 45B) includes a rear second LED element 43 and a rear second wiring body 47 (47A, 47B), as shown in FIG. 11(a). The second rear LED element 43 corresponds to an example of the "light emitting element of the outer light emitting module" of the present invention.
There are a plurality of rear second LED elements 43 (eg, 36 in the entire module), and they are connected in one or multiple parallel multiple series (eg, 1 parallel 36 series). The color temperature of the light emitted by the rear second LED element 43 is 2,700 [K].
As shown in FIG. 11(c), the back second wiring body 47 (47A, 47B) connects two conductive pieces 471, 471 adjacent to each other with an interval in the annular direction (circumferential direction) as one set of wiring. A plurality of sets are provided along the annular direction as a path.

The conductive piece 471 is made of, for example, a metal plate (for example, tinned steel plate). When using a metal plate, for example, it is punched into a desired shape by a press. A reflective film is formed on the surface of the conductive piece 471 (mounting surface of the rear second LED element 43). White paint, for example, can be used as the reflective film.
As shown in FIG. 11C, the conductive piece 471 has a base portion 472 extending along an annular shape and a first extending portion extending from one end of the base portion 472 in the annular direction in a direction orthogonal to the base portion 472. 473 and a second extending portion 474 extending from the other end portion of the base portion 472 in the annular direction in the orthogonal direction. Note that the base portion 472 is located on the side opposite to the center side of the ring.
As shown in FIG. 11(b), two conductive pieces 471a and 471b adjacent in the annular direction are formed into a first extending portion 473a of one conductive piece 471a and a second extending portion 474b of the other conductive piece 471b. are arranged to face each other, and one or a plurality of (here, one) rear second LED elements 43 are mounted on the facing portion. Here, the facing portion between the first extending portion 473a and the second extending portion 474b extends in the radial direction, and one rear second LED element 43 is mounted on the base portion 472 side thereof.

The two conductive pieces 471, 471 adjacent in the annular direction are reinforced by a dummy element 49 mounted on the mounting surface of the rear second LED element 43, as shown in FIG. 11(a). Here, the dummy element 49 is mounted across the opposing bases 472, 472 of the adjacent conductive pieces 471, 471. As shown in FIG. The dummy element 49 is provided radially outside the second rear LED element 43 .

The rear outer light emitting module 45 has a fixing portion for mounting on the rear tray 48 . The back tray 48 here is made of a thermoplastic resin material, and is fixed using a plurality of pin portions 484 integrally formed on the back tray 48 shown in FIG. For this reason, the rear outer light emitting module 45 has holes and recesses through which the pin portions 484 are inserted.
Here, as shown in FIG. 11(a), it is constituted by a recess 472a of the base portion 472 of the conductive piece 471 and recesses 476 of the first extending portion 473 and the second extending portion 474. As shown in FIG.

As shown in FIG. 11A, the back second wiring bodies 47 (47A, 47B) are electrically connected to the back second wiring bodies 47 (47A, 47B) of the other back outer light emitting modules 45 adjacent in the annular direction. It has terminal portions 477 and 478 that are directly connected. The terminal portions 477 and 478 are composed of remaining portions of the conductive piece 471 cut at the base portion 472 . The terminal portion 477 is, for example, a high potential side terminal, and the terminal portion 478 is a low potential side terminal.
At the time of connection, as shown in FIG. 11(b), the terminal portion 477 of the other rear outer light emitting module 45B adjacent in the annular direction is overlapped with the terminal portion 478 of the rear outer light emitting module 45A, and the terminals are connected by soldering, pins, or the like. combined.

(2-3) Arrangement As shown in FIG. 11(b), the rear light emitting module 41 includes a first extending portion 463c and a second extending portion 463c of one conductive piece 461c constituting the rear inner light emitting module 44 (44B). A first extending portion 473a of one conductive piece 471a and a second extending portion 474b of the other conductive piece 471b, which constitute the rear outer light emitting module 45 (45B) and are adjacent in the annular direction, are located between the portion 464c and the portion 464c. It is arranged so that
As shown in FIG. 11(b), the rear light emitting module 41 is provided between the first extending portion 473c and the second extending portion 474c of one conductive piece 471c constituting the rear outer light emitting module 45 (45A). , and arranged so that the first extending portion 463a of one conductive piece 461a and the second extending portion 464b of the other conductive piece 461b, which constitute the back inner light emitting module 44 (44A) and are adjacent in the annular direction, are positioned. ing.
In other words, the facing portion between the first extension portion 463 and the second extension portion 464 of the two adjacent conductive pieces 461 of the back inner light emitting module 44 and the first extension portion of the two adjacent conductive pieces 471 of the back outer light emitting module 45 The conductive pieces 461 of the back inner light emitting module 44 and the conductive pieces 471 of the back outer light emitting module 45 are combined so that the extending portions 473 and the opposing portions of the second extending portions 474 are alternately positioned in the annular direction. .
Thereby, a plurality of LED elements 42 and 43 can be mounted at high density. In addition, the plurality of rear first LED elements 42 and the plurality of rear second LED elements 43 can be arranged on double concentric circles (or portions close to the concentric circles), thereby reducing uneven brightness.

(2-4) Back Tray As shown in FIGS. 9A and 10, the back tray 48 has the same shape as the back light emitting module 41 when viewed from the light emitting direction. In other words, the back tray 48 has an annular shape when viewed from the back side.
As shown in FIG. 10 , the back tray 48 includes an annular back annular plate portion 481 , a back tray inner collar portion 482 extending from the inner peripheral edge of the back annular plate portion 481 to both the front and back sides, and the back annular plate portion 481 . It has a back tray outer brim portion 483 extending from the outer peripheral edge to both the front and back sides.
The rear light-emitting modules 41 (41A, 41B, 41C) are mounted on the surface of the rear annular plate portion 481. As shown in FIG.
The back tray 48 has a back fixing portion for fixing the back light emitting module 41 on the back annular plate portion 481 . As described above, the back side fixing portion includes the recesses 462a and 466 of the first back wiring body 46 (46A and 46B) and the recesses 472a and 472a of the second back wiring body 47 (47A and 47B) shown in FIG. A pin portion 484 (see FIG. 10) through which the 476 is inserted is used, and the tip of the pin portion 484 is melted after the insertion. By melting, the melted portions are larger than the recesses 462 a , 472 a , 466 , 476 and engage peripheral portions of the recesses 462 a , 472 a , 466 , 476 in the rear first wiring body 46 and the rear second wiring body 47 .

As shown in FIG. 10, the back tray 48 has a ridge 485 formed corresponding to the connecting portion of the three back light emitting modules 41A, 41B and 41C. The ridges 485 protrude into gaps existing between the adjacent back light-emitting modules 41 to position the back light-emitting modules 41 .
As shown in FIG. 9 , the rear tray 48 has locking portions 486 for fixing (locking) the connection-side ends of the rear cables 593 for supplying power to the rear light-emitting modules 41 . The locking portion 486 has a "C" shape, and the back cable 593 is inserted into the opening portion.

The back tray inner flange portion 482 has a back inner recessed portion 482a that is recessed from the inner peripheral side toward the outer peripheral side. The back tray outer flange portion 483 has a back outer recessed portion 483a that is recessed from the outer peripheral side toward the inner peripheral side.
When the back light source unit 4 is attached to the instrument main body 2, the back inner protruding part 225 of the back inner brim part 223 of the annular plate part 21 of the instrument main body 2 is attached to the back inner recessed part 482a and the back outer recessed part 483a. and the rear outer projecting portion 226 of the rear outer flange portion 224 are fitted (see FIG. 5(b)). In this fitted state, by rotating the back light source unit 4 about the center of the back light source unit 4 as the rotation axis, the back inner protruding portion 225 is attached to the back tray inner flange portion 482 of the back tray 48, and the back outer extending portion 225 is rotated. The projecting portions 226 are engaged with the back tray outer collar portions 483 of the back tray 48 respectively.
The back tray 48 has a through hole 482c in a protruding piece 482b protruding from the inner peripheral edge toward the center. It is fixed to the instrument body 2 by screwing it into the screw hole 227 (see FIG. 5(b)).

As shown in FIG. 9B, the back tray 48 has a circumferential rib 487 extending in the circumferential direction and a radial rib 488 extending in the radial direction on the back surface of the back annular plate portion 481 (located on the front side of the device). surface). In addition, the back tray 48 has a back groove portion 489 that is recessed from the back surface to the front surface and extends in the radial direction. The back groove portion 489 accommodates a back cable 593 that connects to the back outer light emitting module 45 . As a result, when the back light source unit 4 is attached to the instrument main body 2, rattling due to the back cable 593 can be eliminated.

5. Power Supply Unit A description will be given with reference to FIGS. 12 and 13. FIG.
The power supply unit 5 has a power supply function of supplying power to the light source units 3 and 4 . Here, the power supply unit 5 also has a dimming function for dimming at least the surface emitting module 31 . These functions are accomplished by the power supply circuit (51).
The power supply unit 5 also has a toning function for toning at least the surface light emitting module 31 . These functions are accomplished by the toning circuit (52).
The power supply unit 5 includes at least a power supply circuit 51 . The power supply unit 5 here includes a toning circuit 52 . The power supply unit 5 includes a power supply circuit 51 and a toning circuit 52 on different substrates. That is, the power supply unit 5 includes the toning circuit 52 independently of the power supply circuit 51 . The power supply unit 5 includes an insulating sheet 53 for ensuring insulation between the power supply circuit 51 and the toning circuit 52 . In order to ensure flame resistance of the power supply unit 5 here, the power supply circuit 51 is attached to the instrument main body 2 through a flame-retardant cover 54 .
The power supply unit 5 includes a power supply cover 55 that covers the power supply circuit 51 and the toning circuit 52 attached to the instrument main body 2 and a bush 56 that closes the opening of the power supply cover 55 .
Each part will be described below.

(1) Power Supply Circuit The power supply circuit 51 includes a front power supply circuit that supplies power to the front light source unit 3 and a back power supply circuit that supplies power to the back light source unit 4 . Here, the dedicated front power supply circuit and the back dedicated power supply circuit are independent. "Independent" means that the front-only power circuit can supply power to the front light source unit 3 without depending on the back-only power circuit, and the back-only power circuit can supply power to the back light source unit 4 without depending on the front-only power circuit. It means that power can be supplied to
The front power supply circuit here is configured to supply power to the front inner light emitting module 34 and the front outer light emitting module 35 in an adjustable manner. The back power supply circuit here is configured to supply power to the back inner light emitting module 44 and the back outer light emitting module 45 in an adjustable manner. That is, the power supply circuit 51 has a dimming function (including a dimming circuit).
The power supply circuit 51 includes a front power supply circuit and a back power supply circuit electrically independent of each other. That is, the power supply circuit 51 can separately adjust the power supplied to the front light source unit 3 and the power supplied to the back light source unit 4 .

The power supply circuit 51 includes a plurality of electronic components 511 for forming a circuit, and a power supply board 513 on which these electronic components 511 are mounted on the front and back surfaces.
The power supply board 513 has an opening 513a for the pull switch 8 in the center, a through hole 513b for attachment to the instrument main body 2 near the outer periphery, and a board positioning groove 513c in the outer periphery. .
The power supply board 513 has a receiving element 515 (see FIG. 12) for a remote control mounted on the surface thereof at the periphery of the opening 513a. Surface-mount type electronic components are mounted on the surface of the power supply board 513 facing the toning circuit 52, and large discrete electronic components are mounted on the surface opposite to the toning circuit 52 (Fig. 13).
The power supply board 513 has a through hole for a support 95 for supporting the toning board 523 of the toning circuit 52 at a distance from the back side. Since the support 95 is attached to the through hole of the power supply substrate 513, the through hole cannot be seen.

(2) Toning circuit The toning circuit 52 includes a front toning circuit for toning the front light source unit 3 and a back toning circuit for toning the back light source unit 4 . The front toning circuit here is configured to supply power to the front inner light emitting module 34 and power to the front outer light emitting module 35 in a separately adjustable manner. The back color toning circuit here is configured to supply power to the back inner light emitting module 44 and power to the back outer light emitting module 45 in a separately adjustable manner.
The toning circuit 52 includes a toning circuit for front side and a toning circuit for back side electrically independently. That is, the toning circuit 52 is configured to be able to adjust the electric power supplied to each of the front inner light emitting module 34 , the front outer light emitting module 35 , the back inner light emitting module 44 and the back outer light emitting module 45 .

The toning circuit 52 includes a plurality of electronic components 521 for forming a circuit, and a toning substrate 523 on which these electronic components 521 are mounted on the front and back surfaces. The toning board 523 here is a double-sided mounting type board, and the surface facing the power supply circuit 51 (power supply board 513) has a surface mounting type electronic component, and the surface opposite to the power supply circuit 51 (power supply board 513). are mounted with large discrete components (see FIG. 12).
The toning board 523 has an opening 523a for the pull switch 8 in the center and a through hole 523b (for the support 95) for mounting the power supply board 513 near the outer periphery.
As shown in FIG. 12, the toning board 523 includes a bullet-shaped LED 525 for night light, an illuminance sensor 526, and a cylinder 527 for preventing diffusion of light from the night light. The insulating plate (without wiring pattern) of the toning board 523 has the same (structure) as the insulating plate of the power supply board 513 .

(3) Insulating Sheet and Reflective Sheet The insulating sheet 53 has a shape that substantially matches the shape of the power supply board 513 when viewed from the front side, and has an opening 53a for the pull switch 8 in the center, and the power supply board 513 is attached to the instrument main body 2. A notch portion 53b for a fixing screw is provided on the surface, and a notch portion 53c for the support member 95 of the power supply substrate 513 is provided near the outer peripheral edge.
A reflective sheet 57 is arranged between the toning circuit 52 and the power supply cover 55 . The reflective sheet 57 has a shape similar to the shape of the inner peripheral surface of the cylindrical portion 551 of the power supply cover 55 . The reflection sheet 57 has through holes 57a. The through hole 57 a has a shape corresponding to the end opening of the cylinder 527 provided on the toning substrate 523 .

(4) Flame-Retardant Cover The flame-retardant cover 54 is made of a flame-retardant resin material such as a flame-retardant polycarbonate.
The flame-retardant cover 54 includes a flame-retardant tubular portion 541 having an inner peripheral surface close to the outer peripheral shape of the power supply substrate 513 viewed from the front side, and a flame-retardant tubular portion 541 projecting radially outward from the front-side end portion of the flame-retardant tubular portion 541 . It integrally has an outer flange portion 542 and a flame-retardant lid portion 543 that closes the rear end portion of the flame-retardant tubular portion 541 .
The flame-retardant cover 54 includes a recess 545 for the support 95 for supporting the toning board 523 on the power supply board 513, and a boss portion 257 of the fixture body 2 (screw hole for attaching the power supply board 513 to the fixture body 2). 528 is formed) and a recess 547 for the vertical rib 259 of the instrument body 2 are provided over the flame-retardant cylindrical portion 541, the flame-retardant outer collar portion 542, and the flame-retardant lid portion 543. is doing.
The flame-retardant outer flange portion 542 supports the power supply board 513 from the back side when the power supply board 513 is attached to the instrument main body 2 .
The flame-retardant lid portion 543 has a through hole 543a for the pull switch 8 . The rear surface of the pull switch 8 inserted through the through-hole 543a abuts against the lid portion 251 of the bulging portion 25 of the device body 2 (see FIG. 2) and is fixed by screws 93 (FIGS. 3 and 4).
As shown in FIG. 13, the flame-retardant lid portion 543 has a protruding portion 543b protruding in the shape of a cylinder with a lid on the back side, and a through hole 543c for the connector 58 (see FIGS. 3 and 4) is formed in the protruding portion 543b. have. The projecting portion 543b abuts on the lid portion 251 of the bulging portion 25 of the instrument body 2. As shown in FIG. The connector 58 is connected to the power board 513 of the power circuit 51 via a cable (not shown).

(5) Power Supply Cover The power supply cover 55 has a tubular shape with a bottom, and has a tubular portion 551 and a bottom portion 553 . The power supply cover 55 has a function of covering the power supply circuit 51 and the toning circuit 52 . The power supply cover 55 is attached to the fixture main body 2 and functions together with the fixture main body 2 as a power supply housing that accommodates the power supply circuit 51 and the toning circuit 52 . The power supply cover 55 here is made of a translucent resin material (for example, a flame-retardant polycarbonate in consideration of safety) containing a diffusing agent that allows the light of a night light to be emitted. The power supply cover 55 is made of a material that allows infrared rays for remote control to pass through.

(5-1) Cylindrical Portion The cross-sectional shape of the cylindrical portion 551 is annular.
The cylindrical portion 551 has a plurality of (for example, two) protruding pieces 551a that protrude outward in the radial direction at the opening side end. The protruding piece 551a engages with the instrument side engaging portion 261 of the instrument body 2, as shown in FIG. 5(a). As a result, the power supply cover 55 is locked to the instrument main body 2 .
The cylindrical portion 551 includes an inverted L-shaped piece 551b that extends radially outward between the two projecting pieces 551a after extending to the back side, and an inverted L-shaped piece 551b that projects radially outward. A through-hole 551c is formed in a portion that protrudes outward, and a screw 96 (see FIGS. 3 and 4) that is inserted through the through-hole 551c is screwed into the threaded hole 262 of the instrument body 2. As shown in FIG. Thereby, the power supply cover 55 is fixed to the instrument main body 2 .

The cylindrical portion 551 has a plurality of sets (for example, three sets) of which a pair of ridges 551d extending in the front-back direction are set as one set and spaced apart in the circumferential direction. The pair of ridges 551d are fitted into the grooves 611 (see FIGS. 3 and 4) of the front light source cover 6A.
The cylindrical portion 551 has a plurality of convex portions 551f protruding radially outward at intervals in the circumferential direction. The convex portion 551f fits (engages) with the through hole 613 (see FIGS. 3 and 4) of the front light source cover 6A.

(5-2) Bottom As shown in FIG. 2, the bottom 553 bulges outward in an arcuate cross section. The bottom portion 553 has a recessed portion 553a that is recessed to the back side in the central portion, and a through hole 553b that is formed in the bottom portion of the recessed portion 553a.
As shown in FIGS. 2, 12 and 13, the through hole 553b is fitted with a bush 56 made of silicon or the like having a through hole 561 in the center. Note that the string 83 of the pull switch 8 is inserted through the through hole 561 of the bush 56 .

6. Light source cover Mainly using FIG.3 and FIG.4, it demonstrates.
The light source cover 6 is formed by combining a front light source cover 6A positioned on the front side of the fixture body 2 and a back light source cover 6B positioned on the back side of the fixture body 2. - 特許庁The front light source cover 6A covers the front side of the front light source unit 3 while being separated therefrom. The back light source cover 6B covers the back light source unit 4 from the back side while being separated from the back light source unit 4. - 特許庁As a result, it is possible to suppress the generation of shadows on the light source cover due to contact with the light source units 3 and 4, and a lighting device that shines beautifully can be obtained.

The light source cover 6 is integrated by separately attaching the front light source cover 6A and the rear light source cover 6B to the fixture main body 2 side. The abutting portion of the integrated light source cover 6 is, as shown in FIG. located approximately in the center of As a result, the front and back surfaces can be illuminated with the same brightness.
The front light source cover 6A and the rear light source cover 6B are made of a translucent material such as a resin material, and both covers use the same translucent resin material (eg polypropylene (PP)). The light source cover 6 has a radially wide annular shape when viewed from the front side or the back side. Here it is circular.

(6-1) Front Cover Hereinafter, description will be made with reference to FIG.
The front light source cover 6A has a shape obtained by rotating a lower half of a semi-elliptical cross section around an imaginary line axis passing through the center of the instrument main body 2. As shown in FIG. The front light source cover 6A has a tubular portion 61 whose tubular axis is the phantom line, and a front plate portion 63 arranged radially outward of the tubular portion 61 .

(6-1-1) Cylindrical Portion The cylindrical portion 61 has a plurality of (for example, three) grooves 611 extending from the back side end to the front side at intervals in the circumferential direction. A pair of protrusions 551d (see FIGS. 12 and 13) of the cylindrical portion 551 of the power supply cover 55 are fitted into the grooves 611 from the back side.
The cylindrical portion 61 has a plurality of (for example, three) through holes 613 formed in the center in the front-back direction at intervals in the circumferential direction. A convex portion 551f (see FIGS. 12 and 13) of the cylindrical portion 551 of the power supply cover 55 is fitted into the through hole 613 .

(6-1-2) Front plate portion The front plate portion 63, as shown in the enlarged view, is composed of a plate-like portion 631 extending from the inner surface of the opening side end portion (peripheral edge portion) to the back side, and the plate-like portion 631. It has a "U"-shaped convex portion 633 provided on the outer surface and a plurality of concave portions 635 in the U-shaped convex portion at intervals in the circumferential direction.
The convex portion 633 engages with the rear side of the convex portion 672 of the back plate portion 67 of the back light source cover 6B. Also, the concave portion 635 is engaged with the convex portion 672 of the back plate portion 67 of the back light source cover 6B. As a result, the front light source cover 6A and the rear light source cover 6B are engaged in a double structure.

(6-2) Back Cover The back light source cover 6B has a semi-elliptical cross-sectional shape, which is rotated around an imaginary line axis passing through the center of the fixture main body 2 . The back light source cover 6B has a cylindrical portion 65 whose cylindrical axis is the phantom line, and a back plate portion 67 arranged radially outward of the cylindrical portion 65 .
(6-2-1) Cylindrical Portion The cylindrical portion 65 has a plurality of sets (for example, 4 sets) of a pair of grooves 651 extending from the opening side end to the back side as one set and spaced apart in the circumferential direction. The cylindrical portion 65 has a convex portion 652 that protrudes radially inward at the front end between the pair of grooves 651 . The protruding portion 652 fits (engages) with the through hole 253a of the back cylinder portion 253 of the instrument body 2, as shown in FIG.

The tubular portion 65 has an extension plate portion 653 extending from the inner peripheral surface toward the cylinder axis, and a through hole 654 formed in the extension plate portion 653 . The through hole 654 of the stretching plate portion 653 is aligned with the screw hole 256 of the bulging portion 25 of the instrument body 2 shown in FIG. It is fixed to the bulging portion 25 .
When attaching the back light source cover 6B to the fixture main body 2, the cylindrical portion 65 of the back light source cover 6B is attached to the back cylindrical portion 253 of the fixture main body 2 and the rear side upright as shown in FIG. 5(b). It is inserted between the setting portion 255 .

(6-2-2) Back plate portion As shown in the enlarged view, the back plate portion 67 includes a recessed portion 671 that is recessed in the thickness direction from the inner surface of the opening side end (peripheral edge), and a recessed portion. and a convex portion 672 projecting radially inward from the inner surface of 671 .
The convex portion 672 fits into the concave portion 635 of the front plate portion 63 of the front light source cover 6A, and the concave portion 671 fits into the plate-like portion 631 of the front plate portion 63 of the front light source cover 6A. As a result, the front light source cover 6A and the rear light source cover 6B are engaged in a double structure.
The back plate portion 67 has a pair of rib portions 673 extending from the rear portion of the cylindrical portion 65 in the cylinder axis direction to the recessed portion 671 so as to cover the recessed portion 671 . In a state where the concave portion 635 of the plate-like portion 631 of the front light source cover 6A and the like are engaged with the convex portion 672 and the like in the concave portion 671 of the back light source cover 6B, a gap between the rib portion 673 and the concave portion 671 is formed. A plate-like portion 631 is inserted into the gap.
After the concave portion 671 and the convex portion 672 are fitted together, the front plate portion 63 and the back plate portion 67 can be made to have a structure that is difficult to separate by ultrasonically welding the fitting portions.

7. Shade Description will be made with reference to FIG.
The shade 7 includes a cap-shaped shade body portion 73 having an opening 71 at the top, a recessed cylindrical portion 75 cylindrically recessed from the opening 71 of the shade body portion 73 to the front side, and a front side end of the recessed cylindrical portion 75 . and a flange portion 77 projecting toward the cylinder shaft. The collar portion 77 abuts on the rear surface of the stepped portion 114 of the cord housing 11 of the suspension member 1 , and the shade 7 is supported by the suspension member 1 .
As described above, the shade 7 has the collar portion 77 supported by the stepped portion 114 of the cord housing 11, so that the shade 7 can be freely replaced with respect to the device main body 99, and matches the place and purpose of use of the lighting device A. Can be combined with shades.
The device main body 99 is obtained by removing the shade 7 from the lighting device A, and includes the suspension member 1, the fixture main body 2, the light source units 3 and 4, the power supply unit 5, and the light source cover 6 here.

Although the shade 7 shown in FIG. 2 is a deep Western-style shade 7, for example, as shown in FIG. ), the illumination device C may be provided with a Japanese-style shallow shade 7C having a rectangular box-shaped shade body 73C with an open front side.
These shades 7, 7B, and 7C have a flange (77), and the hooking ceiling 12 and hooking cover 13 of the hanging member 1 can be passed through the opening of the recessed cylindrical portion 75 on the instrument body 2 side. It is attached to the device main body 99 .
The Japanese-style shade 7C may include, for example, a shade body portion 73C detachable from the frame portion 75C. In this case, for example, the design can be changed by attaching a pattern sheet to the shade body portion 73C.

In addition to the shades 7B and 7C shown in FIG. 15, the shades are, for example, as shown in FIG. The shades 7D and 7E may have outer shade portions 74D and 74E extending sideways. The shade 7D has a so-called deep design, and the shade 7E has a so-called shallow design.
The shades 7D, 7E may comprise, for example, transparent outer shade portions 74D, 74E. In this case, for example, the design can be changed by making it transparent and fixing the pattern sheet to the outer periphery of the outer shade portions 74D and 74E.
By appropriately selecting a plurality of shades 7A, 7B, 7C, 7D, 7E, etc., using one device main body 99, various lighting devices A, B, C, D, and E can be realized. Obtainable.
The shade 7 is made of translucent material. As a translucent material, for example, there is a general-purpose polystyrene (GPPS) having excellent translucency.

Although the embodiment has been described above, the present invention is not limited to this embodiment. For example, the following modifications may be made. Also, the embodiment may be combined with a modified example, or a combination of modified examples.
Further, examples not described in the embodiments and modifications, and design changes within the scope of the invention are also included in the present invention.

<Others>
In the light source units 3, 4, the facing portions of the first extending portions 363, 463 and the second extending portions 364, 464 of the adjacent conductive pieces 361, 461 in the inner light emitting modules 34, 44 and the outer light emitting modules 35, 464 The inner light emitting modules 34, 45 are arranged so that the first extending portions 373, 473 and the facing portions of the second extending portions 374, 474 of the conductive pieces 371, 471 adjacent in the annular direction in the inner light emitting modules 34, 45 are alternately positioned in the annular direction. 44 and outer light emitting modules 35, 45 are combined.

However, the light source unit includes an inner light emitting module whose base is located on the center side of the annular shape with respect to the first extending portion and the second extending portion, and an inner light emitting module whose base portion is located on the center side of the annular shape with respect to the first extending portion and the second extending portion. At least one of the outer light emitting module located on the opposite side to the outer light emitting module may be provided.
A specific example will be described below.

As an example of including only the inner light emitting module, as shown in FIG. may be In this case, the same wiring body 36 as that of the light source unit 3 is used, but by changing the number of mounted LED elements 32, a light source unit with different specifications can be obtained.

As an example of including only the outer light emitting module, as shown in FIG. may be
As an example of forming a single ring using the inner light emitting module and the outer light emitting module, as shown in FIG. An inner light-emitting module in which three LED elements 33C are mounted on a wiring body 36C configured in a semicircular shape, and a wiring body 37C configured in a semicircular shape using the conductive piece 371 of the outer light-emitting module 35. It may be electrically connected to an outer light emitting module mounted with three LED elements 33C. The light source unit 3C has 3 parallel lines and 30 series lines as a whole, and has the same form as the light source units 3A and 3B.
The LED element 33C corresponds to an example of "the light emitting element of the inner light emitting module" and "the light emitting element of the outer light emitting module" of the present invention, and has the same color temperature of 6,500 [K]. .
In this case, for example, even if the number of conductive pieces does not reach the number constituting one annular wiring body, these conductive pieces can be effectively used, and the yield of the conductive pieces can be improved.

<Modification>
1. Light Source Unit In the embodiments, LED elements are used as the light emitting elements of the light source units 3 and 4, but for example, laser elements having both terminals on the back surface, or EL elements may be used. Moreover, as a light source, an SMD type in which a plurality of LED elements are mounted may be used, or a plurality of LED elements mounted on a substrate may be used. Note that the color temperature of the LED elements (light emitting elements) described in the embodiments and the like is an example, and other color temperatures may be used.
The light-emitting modules 31, 41 use a plurality of conductive pieces 361, 371, 461, 471 as the wiring bodies 36, 37, 46, 47 for the LED elements 32, 33, 42, 43, but they are generally used. It is also possible to use a printed circuit board in which wiring is printed on a conductive plate provided with a printed circuit board.

The light source units 3 and 4 are equipped with inner light emitting modules 34 and 44 and outer light emitting modules 35 and 45 in a double annular shape (they are combined to form one annular ring). Alternatively, the light emitting modules may be provided in a multi-annular form of three or more, or may be provided in an annular form while being spaced apart in the radial direction.
In the embodiment, the trays 38 and 48 having a function to reinforce the light emitting modules 31 and 41 are provided. You can install it.
In the light emitting modules 31 and 41, the first extending portions 363, 373, 463 and 473 and the second extending portions 364, 374, 464 and 474 extend in a direction (radial direction) perpendicular to the base portions 362, 372, 462 and 472. However, the first extending portion and the second extending portion may extend in directions crossing the radial direction.

2. Apparatus main body In the embodiment, for example, a translucent resin material such as polypropylene is used, but for example, a non-translucent resin material may be used, or a flame-retardant resin material may be used. It may be used, or a metal material may be used. When using a flame-retardant resin material, the flame-retardant cover 54 of the power supply unit 5 may not be provided.
Although the bulging portion 25 in the embodiment bulges to the back side, it may bulge to the front side to accommodate part or all of the power supply unit, for example. In addition, in the case of a lighting device that does not have a power supply unit and that has light source units on both main surfaces of the fixture body, it may or may not have the bulging portion.
Although the fixture main body 2 of the embodiment has the bulging portion 25, any other structure may be used as long as the first light source unit can be mounted on the first side of the fixture main body and the second light source unit can be mounted on the second side thereof. The configuration is not particularly limited.

3. Power supply unit In the embodiment, the power supply circuit 51 and the toning circuit 52 are configured by separate substrates 513 and 523, but may be configured by the same substrate. In this case, the electronic components 511 and 521 forming the circuit may be mounted on one side of the substrate or may be mounted on both sides of the substrate.

4. Suspension Member In the embodiment, the cord 10 is fixed by a bush 112 (see FIG. 2) provided in the opening of the housing body 111 so as not to slip, but it may be fixed by other methods. A case of fixing by another method will be described with reference to FIG. In FIG. 18, the shade is removed and half of the housing body 111D is cut so that the inside of the housing body 111 can be seen.
The suspension member 1D includes a housing body 111 having a through hole 111a at the top, a fixture 115D provided in the through hole 111a and fixing the cord 10D, and a support 116D attached to the instrument body 2 and supporting the fixture 115D. and Note that the support 116D may be configured on the device main body 2 side.

The fixture 115D includes a cylinder 120D having a threaded portion 123D, and a nut 130D screwed onto the threaded portion 123D of the cylinder 120D.
The tubular body 120D includes a protruding tubular portion 121D protruding from the through hole 111a of the housing main body 111, a large diameter portion 122D positioned inside the housing main body 111 on the front side of the protruding tubular portion 121D and having a larger diameter than the through hole 111a, It has a threaded portion 123D formed on the front side of the large diameter portion 122D, and a notch portion 124D formed in the threaded portion 123D and communicating with the inside of the protruding cylindrical portion 121D.
The cord 10D is introduced into the housing main body 111 through the inside of the projecting tubular portion 121D, passed through the notch portion 124, and led out from between the large diameter portion 122D and the nut 130D. At this time, by rotating the nut 130D so as to approach the large diameter portion 122D, the cord 10D is clamped between the large diameter portion 122D and the nut 130D. This fixes the cord 10D to the fixture 115D.

In addition, the fixture 115D configured as described above can fix the thin cord (10) that could not be fixed by the bush (112), and by adopting the thin cord for the hanging line, the design can be improved. can be done. Note that the configuration of the fixture 115D focuses on fixing a thin cord, and is irrelevant to other configurations such as the light source unit, the power supply unit, and the fixture body.
The support 116D includes a mounting plate portion 141D placed on the lid portion 251 (see FIG. 5) of the instrument main body 22, and a cylindrical portion formed on the rear surface of the mounting plate portion 131D and into which the screw portion 123D is inserted. 142D.

5. Lighting Device The lighting device A of the embodiment includes the power supply unit 5. For example, the power supply circuit may be provided outside the device, or may be provided in another part within the device. and a toning circuit may be provided outside the device.
As an example where the power supply circuit or the power supply circuit and the toning circuit are provided outside the device, for example, they may be provided behind the installation surface (ceiling), and power may be supplied to each light source unit via the cord 10 .
As an example in which the power supply circuit or the power supply circuit and the toning circuit are provided in other parts of the device, for example, they may be provided in the hook ceiling 12 housed in the hook cover 13 of the hanging member 1, or in the housing main body 111. may be set to By providing the power supply circuit or the power supply circuit and the toning circuit, for example, on the back side of the installation surface (ceiling) or on the hanging ceiling, it is possible to make the cord thinner.
In the lighting device A of the embodiment, the cord 10 has both the suspension function and the power supply function. good.

In the embodiment, the shade 7 is provided in the fixture body (apparatus body 99) 2 so as to be changeable. You may prepare.
In the embodiment, the lighting device A can be turned on, turned off, toned, dimmed, etc., by using the pull switch 8 and a remote controller (not shown). Alternatively, a dedicated wall switch may be provided and operated in combination with at least one of the pull switch and the remote controller, or independently.

A lighting device 3 front light source unit 4 back light source unit 31 front light emitting module (light emitting module)
32 Table 1 LED element (light emitting element)
33 Table 2nd LED element (light emitting element)
34 front inner light emitting module (inner light emitting module)
35 Outer light emitting module (outer light emitting module)
36 Front first wiring body (wiring body)
37 front second wiring body (wiring body)
361 Conductive piece 362 Base 363 First extension 364 Second extension 371 Conductive piece 372 Base 373 First extension 374 Second extension

Claims (6)

A light source unit comprising one or more light emitting modules and having an annular shape as a whole when viewed from the light emitting direction of the light emitting modules,
The light emitting module is
a wiring body including a plurality of sets of two conductive pieces adjacent to each other with a space in the annular direction as one set of wiring paths along the annular direction;
and one or more light emitting elements mounted so as to straddle the two conductive pieces,
The conductive piece includes a base portion extending along the annular direction, a first extending portion extending from one end portion of the base portion in the annular direction in a direction intersecting the base portion, and the other portion of the base portion extending in the annular direction. a second extending portion extending from the end portion in the intersecting direction;
The two conductive pieces are arranged such that the first extension portion of one of the conductive pieces faces the second extension portion of the other conductive piece, and the light emitting element is mounted on the facing portion. ,
an inner light emitting module in which the base is located on the center side of the annular shape with respect to the first extending portion and the second extending portion; At least one of a center side light emitting module and an outer side light emitting module located on the opposite side is provided.
light source unit. the inner light emitting module has a toric shape;
the outer light-emitting module has an annular shape;
The outer light emitting module has two conductive pieces adjacent to each other in the annular direction in the outer light emitting module between the first extending portion and the second extending portion of the one conductive piece constituting the inner light emitting module. The light source unit according to claim 1 , wherein the first extending portion of one of the conductive pieces and the second extending portion of the other conductive piece are positioned. The light source unit according to claim 2 , wherein the color temperature of the light emitting elements of the inner light emitting module and the color temperature of the light emitting elements of the outer light emitting module are different. wherein the inner light emitting module and the outer light emitting module are electrically connected, and the inner light emitting module and the outer light emitting module form one ring;
The light source unit according to claim 1 , wherein the color temperature of the light emitting elements of the inner light emitting module and the color temperature of the light emitting elements of the outer light emitting module are the same. The light source unit according to any one of claims 1 to 4 , wherein the two conductive pieces are reinforced by dummy elements mounted on the facing portions. A lighting device comprising one or more light emitting modules and comprising a light source unit which is annular as a whole when viewed from the light emitting direction of the light emitting modules,
A lighting device, wherein the light source unit is the light source unit according to any one of claims 1 to 5 .

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