WO2019167341A1 - Light source unit and lighting device - Google Patents

Abstract

Provided are a light source unit in which the binding strength between electroconductive strips can be increased and a lighting device equipped with this light source unit. This light source unit (3) comprises: one or a plurality of wiring bodies (33) each equipped with a plurality of sets of wiring path where one set of wiring paths comprises two electroconductive strips (34), (35) spaced apart from one another; an insulating tray (37) on which the one or the plurality of wiring bodies (33) are mounted; and one or a plurality of light source elements (32) mounted on the side facing away from the tray in such a manner as to bridge the two electric conductive strips (34), (35) constituting the wiring path.

Description

Light source unit and lighting device

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

In recent years, a light source unit including a light source element as a light source has been proposed in which a plurality of light source elements are mounted so as to straddle a plurality of sets of conductive pieces as a pair of two adjacent conductive pieces (for example, patents). Reference 1).

International Publication No. 2017/115862

However, in the light source unit described in Patent Document 1, the coupling between the conductive pieces due to the mounting of the light source element is weak, and the form of the light source unit may not be maintained.
An object of this invention is to provide a light source unit which can raise the coupling | bonding force of electrically conductive pieces, and an illuminating device provided with the said light source unit.

The light source unit according to the present invention includes one or a plurality of wiring bodies including two or more sets of two conductive pieces spaced apart as a set of wiring paths, and an insulating property on which the one or more wiring bodies are mounted. And one or a plurality of light source elements mounted on the two conductive pieces constituting the wiring path so as to straddle the opposite side of the tray.
The illuminating device according to the present invention includes a light source unit including a light source element, and a fixture main body on which the light source unit is mounted, and the light source unit is the light source unit described above.

According to the above-described configuration, since the tray is provided, the coupling force between the conductive pieces can be increased.

It is a perspective view of the illuminating device which concerns on embodiment, (a) is the figure seen from the front side, (b) is the figure seen from the back side. It is sectional drawing of an illuminating device. It is the perspective view which looked at the decomposition | disassembly state of an illuminating device from the front side. It is the perspective view which looked at the decomposition | disassembly state of an illuminating device from the back side. It is the perspective view of a suspension member, (a) is the figure seen from the back side, (b) is the figure seen from the front side. (A) is the figure from the front side of the instrument main body, (b) is the figure which looked at the instrument main body from the back side. It is the perspective view which looked at the instrument main body from the front side, and has notched some. It is the perspective view which looked at the instrument main body from the back side, and has notched some. (A) is the perspective view which looked at the state before a suspension member engages with an instrument main body from the back side, (b) is the perspective view which looked at the state where the suspension member was fixed to the instrument main body from the back side. (A) is the figure which looked at the cross section of the periphery where the light source cover in the illuminating device is engaged with the instrument main body from the back side, and (b) is the periphery of the light source cover in the illuminating device engaged with the front cover. It is the figure which looked at the cross section from the front side, (c) is the figure which looked at the cross section of the periphery where the light source cover in the illuminating device is being fixed to the instrument main body from the front side. (A) is the perspective view which looked at the state which attached the light source unit etc. to the instrument main body from the front side, (b) is the perspective view which looked at the state which attached the power supply unit to the instrument main body from the front side. It is the perspective view which looked at the decomposition | disassembly state of a light source unit from the front side. It is a perspective view of a light source unit, (a) is the figure seen from the front side, (b) is the figure seen from the back side. (A) is a figure which shows the connection state of a light source unit and a cable, (b) is a figure which shows the attachment state of the instrument main body of a light source unit. It is the perspective view which looked at the power supply cover from the back side, (a) is the figure seen from the 1st direction, (b) is the figure seen from the opposite side to the 1st direction. It is the perspective view which looked at the front cover from the back side. It is the perspective view which looked at the state which attached the power cover to the front cover from the back side, (a) is the figure seen from the 1st direction, (b) is the figure seen from the opposite side to the 1st direction. is there. It is the perspective view which looked at the back cover from the front side. It is a figure which shows the state before a front cover and a back cover couple | bond together, (a) is a cross section in an engaging part, (b) is a cross section in front of an engaging part. It is a perspective view which shows the state before mounting | wearing with the instrument main body of a back cover. It is a figure for demonstrating the thickness of a front cover and a back cover, (a) is the figure seen from the 1st direction, (b) is the figure seen from the 2nd direction.

<Overview>
A light source unit according to an aspect of the embodiment includes one or a plurality of wiring bodies each including two or more sets of two conductive pieces that are spaced apart as one set of wiring paths, and the one or a plurality of wiring bodies. And two or more light source elements mounted so as to straddle the opposite side of the two conductive pieces constituting the wiring path.
In the light source unit according to another aspect of the embodiment, the wiring body includes a plurality of wiring bodies, and the plurality of wiring bodies include conductive pieces positioned at the end portions of the wiring paths at the end portions of the wiring paths of other wiring bodies. It is connected in a state where it is overlaid on another conductive piece located at the position. Thereby, a some wiring body can be electrically connected easily.
In the light source unit according to another aspect of the embodiment, the tray is made of a plastic resin material, the tray has an extending portion that extends to the conductive piece side, and the wiring body is formed by a molten portion of the extending portion. The conductive piece is locked and fixed to the tray. Thereby, a wiring body can be easily fixed to a tray.
In the light source unit according to another aspect of the embodiment, the extending portion is inserted between adjacent conductive pieces or through a through hole of the conductive piece. Thereby, the wiring body can be fixed to the tray with a simple structure.
The light source device which concerns on 1 aspect of embodiment is equipped with the light source unit provided with a light source element, and the instrument main body which mounts the said light source unit on the surface, and the said light source unit is said light source unit.
The light source unit which concerns on another aspect of embodiment WHEREIN: The said instrument main body has an engaging part engaged with the said tray by moving in the state in which the said light source unit was mounted in the said instrument main body. Thereby, a light source unit can be engaged with an instrument main body with an easy structure.
In the light source device according to another aspect of the embodiment, the instrument main body has a screw portion for a screw that passes through the through hole or the notch portion of the tray in the engaged state. Thereby, a light source unit can be fixed to an instrument main body with an easy structure.

<Embodiment>
In the embodiment, as an example of a lighting device A that is detachably attached to a mounting surface such as a ceiling via a suspension member, as shown in FIG. 1, a wiring device (not shown) such as a rosette or a hooking ceiling of the mounting surface The pendant light provided with the cord (suspending member 1) 10 is described.

1. Overall Description will be made mainly with reference to FIGS.
The lighting device A includes at least an instrument body 2 and a light source unit 3. The illumination device A may include the power supply unit 4 or may include a power supply cover 5 that covers the power supply unit 4. The illumination device A may include a light source cover 6 that covers the light source unit 3. The illuminating device A may include a shade 7 that covers the fixture body 2 from the attached surface (ceiling) side.
The lighting device A as a pendant light includes a suspension member 1, an instrument body 2, a light source unit 3, a power supply unit 4, a power supply cover 5, a light source cover 6, and a shade 7. The illumination device A further includes a pull switch 8 as an example of an operation unit that operates to turn on and off.
Here, the main light main emission direction of the illumination device A is the front side, and the side opposite to the main light emission direction, that is, the attached surface side is the back side.

The suspension member 1 includes a hooking ceiling (not shown) on one end (back side end) of the cord 10 and a cord housing 11 on the other end (front side end) of the cord 10, and the cord housing 11 can be attached to and detached from the instrument body 2. It is attached.
The instrument main body 2 has a back surface attached to the suspension member 1 and a light source unit 3 and a power supply unit 4 mounted on the front surface. Here, the light source unit 3 has an annular shape, and the power supply unit 4 is arranged at the center thereof.
The power supply cover 5 covers the power supply unit 4 arranged at the center of the instrument body 2. The light source cover 6 covers the light source unit 3 arranged on the peripheral part (outer peripheral part of the central part) of the instrument body 2 from the front and back sides.
Hereinafter, each part will be described.

2. Suspension member This will be described with reference to FIG.
The suspension member 1 is connected to a wiring device (not shown) provided on the installation surface, and has a function of receiving power from the wiring device and a function of supporting the lighting device A in a suspended state.
The hanging member 1 includes a hooking ceiling (not shown) connected to the wiring device, a resin hooking cover (not shown) covering the appearance of the hooking ceiling, and a cord 10 having one end connected to the hooking blade of the hooking ceiling. And a cord housing 11 that accommodates a surplus portion at the end of the cord 10.

As shown in FIG. 2, the cord 10 includes a connector 12 </ b> A connected to the power supply unit 4 and connected to a connector 47 attached to the instrument body 2 at the other end. The cord 10 can be adjusted in length, and is fixed by a restraining tool 12B in a folded state. The folded portion is accommodated in the cord housing 11.
The cord housing 11 is made of weather-resistant highly reflective polycarbonate (PC). Thereby, material deterioration by fats and oils, such as cooking, can be prevented, and it can prevent that the illuminating device A falls.
The code housing 11 has a covered cylindrical housing main body 13 and a bush 15 provided in a through hole 14 a (see FIG. 2) of the lid portion 14 of the housing main body 13.
The cord housing 11 is in an engaged state with a housing side engaging portion 16 that engages with the instrument main body 2 by relatively rotating the housing main body 13 around the cylinder axis, a rotation stopping portion 17 at the time of engaging rotation. And a housing side fixing portion 18 for fixing to the instrument body 2.

There are a plurality of (for example, four) housing side engaging portions 16 projecting outward in the radial direction from the opening side end of the housing body 13 and spaced in the circumferential direction. The rotation stopper 17 protrudes from the end opposite to the rotation direction at the time of engagement in each housing side engagement portion 16 to the back side. The housing side fixing portion 18 is constituted by a through hole for a screw 91 (see FIG. 9B) provided in at least one of the housing side engaging portions 16.
The opening side portion of the housing body 13 is a stepped portion 19 that spreads outward, and a rib 16a is provided on the inner surface of the stepped portion where the housing side engaging portion 16 is provided. There are a plurality (for example, three) of ribs 16a for each rib 16a at intervals in the circumferential direction.
As shown in FIG. 2, the outer peripheral end portion of the step portion 19 is larger than the opening 79 (see FIG. 3) of the collar portion 77 of the shade 7, and the step portion 19 is a peripheral portion of the opening 79 of the collar portion 77 of the shade 7. Support. Thereby, the shade 7 is detachably attached to the instrument main body 2.

3. Instrument body The instrument body 2 includes a suspension member mounting part for detachably mounting the suspension member 1, a power supply unit mounting part for mounting the power supply unit 4, and a light source unit mounting part for mounting the light source unit 3. And a power source cover mounting portion for mounting the power source cover 5, a light source cover mounting portion for mounting the light source cover 6, and a switch mounting portion for mounting the pull switch 8.
The instrument body 2 here is made of a resin material. As the resin material, for example, there is a light-transmitting polypropylene (PP) or the like. Thereby, weight reduction, cost reduction, and the spreading | diffusion of a light source can be aimed at. Further, by using an insulating resin material, for example, it is easy to ensure insulation from the power supply unit 4 and the light source unit 3.

This will be described with reference to FIGS.
(1) Bottomed cylindrical part The instrument main body 2 has a bottomed cylindrical part 20 that is recessed in a bottomed cylindrical shape on the back side. The bottom wall 201 of the bottomed tubular portion 20 has a through hole 202. The through-hole 202 is for the connector 47 as shown in FIG. The connector 47 is connected to one end of a cable 48 connected to the power supply unit 4 and is connected to the connector 12A on the suspension member 1 side. It should be noted that the cross-sectional shape of the bottomed cylindrical portion 20 has an annular shape, and the cord housing 11 is attached to the instrument body 2 in a state where the center of the bottom wall 201 and the cylinder axis of the cord housing 11 coincide.

The bottomed cylindrical portion 20 constitutes a switch mounting portion. The bottomed tubular portion 20 has a stretched plate portion 203 extending on the front side in a plate shape on the surface of the bottom wall 201. The stretched plate portion 203 is provided so as to contact or be close to the outer surface of the pull switch 8 as shown in FIG. Thereby, the pull switch 8 is positioned. The pull switch 8 has a rectangular parallelepiped shape, and the extending plate portion 203 abuts or approaches a total of three surfaces including two opposing surfaces of the pull switch 8 and one surface orthogonal to the two surfaces. The bottomed tubular portion 20 has through holes 204 a and 204 b in the back side portion of the pull switch 8 in the bottom wall 201.
A screw 92 (see FIGS. 3 and 4) that is screwed into the screw hole 8a (see FIG. 4) on the back surface of the pull switch 8 is inserted into the through hole 204a from the back side. That is, the switch mounting portion is configured by the bottom wall 201 of the bottomed tubular portion 20 and the through hole 204a. A convex portion 8b (see FIG. 4) on the back surface of the pull switch 8 is fitted into the through hole 204b. As a result, the pull switch 8 is positioned and restricted with respect to the instrument body 2.

(2) Inner flat part The instrument main body 2 has the inner flat part 21 which spreads from the opening edge of the bottomed cylindrical part 20 to radial direction outward, as shown in FIG. Here, the inner flat portion 21 has an annular shape when viewed from the front side.
The instrument body 2 has uneven portions on the back surfaces of the bottomed cylindrical portion 20 and the inner flat portion 21. The concavo-convex portion is formed by, for example, embossing. Thereby, it is possible to prevent the power supply substrate 41 from being seen through from the outside of the apparatus.
(3) Back side recessed part The instrument main body 2 has the back side recessed part 22 recessed into the back side from the inner side flat part 21, as shown in FIG. A plurality of (for example, nine) back side recessed portions 22 are provided at intervals in the circumferential direction of the inner flat portion 21 with the tube axis of the bottomed tubular portion 20 as the center.
This will be described with reference to FIG.
The plurality of back-side recessed portions 22 are configured to have a single circular shape as a whole when viewed from the back side or the front side.

The back side recessed portion 22 mainly constitutes a part of the suspension member mounting portion. The back-side recessed portion 22 includes a protruding portion 222 that protrudes from the outer peripheral edge of the bottom wall 221 to the back side, and a stretched plate that extends in a plate shape from the protruding end of the protruding portion 222 toward the tube axis of the bottomed tubular portion 20. Part 223.
Here, the overhanging portion 222 has a circular shape that is continuous in the circumferential direction. However, it should be at least between the portion where the stretched plate portion 223 exists and the stretched plate portion 223 adjacent in the circumferential direction.
A plurality of (for example, four) extending plate portions 223 are provided at intervals in the circumferential direction (see FIG. 6B). The extending plate portion 223 extends in a direction parallel to the inner flat portion 21, in other words, in a direction orthogonal to the tube axis of the bottomed tubular portion 20.

The mounting of the suspension member 1 will be described with reference to FIG.
The suspension member 1 is placed on the instrument main body 2 so that the housing-side engaging portion 16 of the suspension member 1 faces the bottom wall 221 (see (b) of FIG. 2) of the back side recessed portion 22 of the instrument main body 2. This state is shown in FIG. At this time, the bottom wall 221 has a support function of supporting the housing side engaging portion 16 of the suspension member 1 from the front side.
In this state, when the cord housing 11 is relatively rotated in the direction of the arrow shown in FIG. 9A, the housing side engaging portion 16 of the suspension member 1 enters the front side of the extending plate portion 223 of the instrument body 2. As shown in FIG. 9B, the housing side engaging portion 16 and the extending plate portion 223 are engaged. Thus, the extending | stretching board part 223 comprises the instrument side engaging part.
The end (223b) on the rotation direction side of the extended plate portion 223 when the cord housing 11 is engaged is connected to the end wall 224 orthogonal to the circumferential direction of the back side recessed portion 22.
Note that the length in the circumferential direction of the stretched plate portion 223 is substantially equal to the length in the circumferential direction of the housing side engaging portion 16, and the interval between the stretched plate portions 223 adjacent in the circumferential direction is the housing side engagement. It is larger than the circumferential length of the joint portion 16.

As shown in FIG. 8, at least one stretched plate portion 223 is provided with a chipped portion 223a. As shown in FIG. 6B, the inner flat portion 21 corresponding to the chipped portion 223 a is provided with a boss 212 extending to the back side and a rib 213 connecting the boss 212 and the inner wall 225. Are provided with screw holes 212a (see FIG. 8). It should be noted that the leading edge of the chipped portion 223 a has an arrow at the tip in order to distinguish it from the leading line indicating the connecting wall 228.
As shown in FIG. 9, a screw 91 that passes through the housing side fixing portion 18 (through hole) provided in the housing side engaging portion 16 of the suspension member 1 is screwed into the screw hole 212a. As described above, the boss 212 and the screw hole 212a of the inner flat portion 21 constitute a part of the suspension member mounting (fixing) portion.

Hereinafter, a description will be given with reference to FIG.
The plurality of back-side recessed portions 22 are connected to other back-side recessed portions 22 whose inner wall 225 and outer wall 226 are adjacent to each other in the circumferential direction by connecting walls 227 and 228. Thereby, when the instrument main body 2 is viewed from the back side, the inner wall 225 and the outer wall 226 of the back side recessed portion 22 and the connecting walls 227 and 228 form circular shapes continuous in the circumferential direction. Thereby, the mechanical strength characteristic of the instrument main body 2 can be improved.
The instrument body 2 has a connecting portion 214 that stands from the inner flat portion 21 and connects the inner wall 225 of the back side recessed portion 22 and the cylindrical wall 205 of the bottomed cylindrical portion 20. Thereby, the mechanical strength characteristic of the instrument main body 2 can be improved. A plurality of connecting portions 214 are provided at intervals in the circumferential direction.
As shown in the enlarged view of FIG. 2, the instrument body 2 has a through hole 226 a in at least one outer wall 226 among the plurality of back side recessed portions 22. A convex portion 651c of a cylinder portion 651 of the back cover 65 described later fits into the through hole 226a (see FIG. 2). Thereby, the back cover 65 of the light source cover 6 is attached to the instrument main body 2. That is, the through hole 226a in the outer wall 226 of the back side recessed portion 22 constitutes a back cover mounting portion and a part of the light source cover mounting portion.

(4) Back side standing part It demonstrates using FIG.
The instrument body 2 has a back side standing portion 23 that stands on the back side from the inner flat portion 21. The back side standing part 23 is provided with a radial distance from the back side recessed part 22. There are a plurality of back-side standing portions 23 at intervals in the circumferential direction, and as a whole, the back-side standing portions 23 have a circular shape centered on the tube axis of the bottomed tubular portion 20. The back-side standing portion 23 includes a standing portion 231 that stands in an arc shape when viewed from the back side, and rib portions 232 that are provided at both ends in the circumferential direction of the standing portion 231.
As shown in FIG. 10A, the cylinder portion 651 of the back cover 65 is inserted between the back side standing portion 23 and the outer wall 226 of the back side recessed portion 22. Thereby, the back cover 65 is positioned with respect to the instrument main body 2.

(5) Front side recessed part It demonstrates using (a) of FIG.
The instrument body 2 has a front side recessed portion that is recessed from the inner flat portion 21 to the front side. The front-side recessed portion here includes a first front-side recessed portion 24A and a second front-side recessed portion 24B. The first front side recessed portion 24A and the second front side recessed portion 24B are the outer peripheral edges of the inner flat portion 21 and are provided at intervals in the circumferential direction. The first front-side recessed portion 24A and the second front-side recessed portion 24B are configured to be discontinuous at two locations when viewed from the front side. That is, the first front side recessed portion 24A and the second front side recessed portion 24B are recessed in an arc shape. The first front-side recessed portion 24A is longer in the circumferential direction than the second front-side recessed portion 24B. The inner peripheral walls of the first front side recessed portion 24A and the second front side recessed portion 24B are connected by a connecting wall 24C. The instrument body 2 is reinforced by this structure.

(5-1) First Front Side Recessed Portion This will be described with reference to FIG.
The first front-side recessed portion 24 </ b> A includes a first portion 241 having a first depth, a second portion 242 that is deeper than the first portion 241, and a third portion 243 that is shallower than the first portion 241. The shallow here is located on the back side, and the deep is located on the front side.
Here, the first front-side recessed portion 24A has a first portion 241, a third portion 243, a first portion 241, and a second portion 242 in a clockwise direction.

The first front-side recessed portion 24A includes an outer overhanging portion 244 that projects from the outer peripheral edge of the bottom wall 241a of the first portion 241 to the front side, and an intermediate overhang that projects from the radial middle of the bottom wall 241a of the first portion 241. It has the part 245 and the connection overhang | projection part 246 which connects the both ends of the circumferential direction in the intermediate | middle overhang | projection part 245, and the outer side overhang | projection part 244 in radial direction. The front ends of the outer overhanging portion 244, the intermediate overhanging portion 245, and the connecting overhanging portion 246 are substantially coincident with the surface of the bottom wall of the second portion 242 in the front and back direction.
24 A of 1st front side recessed parts have the inner side overhang | projection part 247 which protrudes from the inner peripheral edge in the bottom wall 241a of the 1st part 241 to the front side. As shown in FIG. 10B, the distal end portion of the cylindrical portion 51 of the power supply cover 5 is inserted between the inner overhang portion 247 and the intermediate overhang portion 245. Thereby, the power supply cover 5 is positioned with respect to the instrument main body 2.
The intermediate overhanging portion 245 faces the tip of the cylindrical portion 611 of the front cover 61 as shown in FIG.

This will be described with reference to FIG.
The second portion 242 has an end wall on the first portion 241 side, and a through groove 242b in the inner peripheral wall 242a of the second portion 242 that is located on the front side of the bottom wall 241a of the first portion 241. Yes. As shown in FIG. 10A, the protruding piece 511 of the cylindrical portion 51 of the power supply cover 5 enters the through groove 242b from the inner peripheral side. The approach is performed by the power supply cover 5 relatively rotating around the tube axis of the tube portion 51 in a state where the projecting piece 511 is in contact with the bottom wall 241a of the first portion 241. As shown in FIG. 10A, the protruding piece 511 enters (through) the through groove 242b, so that the protruding piece 511 is engaged (supported) with the bottom wall 242c of the second portion 242. That is, the bottom wall 242c and the through groove 242b of the second portion 242 constitute a power supply cover mounting portion.

The bottom wall 243a of the third portion 243 is thick in the front and back direction as shown in FIG. 10C, and has a screw hole 243b. A screw 94 inserted through the through hole 513a (see FIG. 15) of the L-shaped extending portion 513 is screwed into the screw hole 243b in a state where the L-shaped extending portion 513 of the power supply cover 5 is in contact with the bottom wall 243a. Thereby, the power supply cover 5 is fixed to the instrument main body 2. That is, the bottom wall 243a (see FIG. 6A) of the third portion 243 constitutes a power supply cover support portion that supports the power supply cover 5, and the bottom wall 243a and the screw hole 243b constitute a power supply cover fixing portion. .

As shown in FIG. 6A, the first front side recessed portion 24A has a plurality of protruding portions 248a projecting radially outward from the outer peripheral wall 248 at intervals in the circumferential direction. The overhang portion 248a is located on the front side of the surface of the outer flat portion 27 (see FIG. 7). As shown in FIG. 14B, the overhang portion 248 a abuts (engages) with the surface of the inner standing portion 373 of the light source tray 37. As a result, the light source tray 37 (light source unit 3) is attached to the instrument body 2. Thus, the overhang portion 248a constitutes a part of the light source tray mounting portion (light source unit mounting portion). The light source tray 37 corresponds to an example of the “tray” of the present invention. The overhanging portion corresponds to an example of the “engagement portion” of the present invention.

(5-2) Second surface recessed portion This will be described with reference to FIG.
The second front-side recessed portion 24B has a first portion 241 having the same depth as the first depth of the first front-side recessed portion 24A, and a second portion 242 deeper than the first portion 241.
Here, the 2nd front side recessed part 24B has the 1st part 241 and the 2nd part 242 continuously in the circumferential direction.

The second front side recessed portion 24B includes an outer projecting portion 244 projecting from the outer peripheral edge of the bottom wall 241a of the first portion 241 to the front side, and an intermediate projecting projecting from the radial middle of the bottom wall 241a of the first portion 241. It has the part 245 and the connection overhang | projection part 246 which connects the both ends of the circumferential direction in the intermediate | middle overhang | projection part 245, and the outer side overhang | projection part 244. FIG.
Also in the second front side recessed portion 24B, the front side front ends of the outer overhanging portion 244, the intermediate overhanging portion 245, and the connecting overhanging portion 246 substantially coincide with the surface of the bottom wall of the second portion 242 in the front and back direction. .
The second front side recessed portion 24 </ b> B has an inner projecting portion 247 that projects from the inner peripheral edge of the bottom wall 241 a of the first portion 241 to the front side. Although not shown, between the inner overhanging portion 247 and the intermediate overhanging portion 245, the distal end portion of the cylindrical portion 51 of the power supply cover 5 is inserted in the same manner as the first front side recessed portion 24A. Thereby, the power supply cover 5 is positioned with respect to the instrument main body 2 (refer FIG.10 (b)).
Although not shown in the drawing, the intermediate overhanging portion 245 faces the tip of the cylindrical portion 611 of the front cover 61 in the same manner as the first front-side recessed portion 24A.

This will be described with reference to FIG.
The second portion 242 has an end wall on the first portion 241 side, and a through groove 242b in the inner peripheral wall 242a of the second portion 242 that is located on the front side of the bottom wall 241a of the first portion 241. Yes. Although not shown, the protruding piece 511 of the cylindrical portion 51 of the power supply cover 5 enters the through groove 242b from the inner peripheral side (see FIG. 10A), as in the first front side recessed portion 24A.

Similarly to the first front side recessed portion 24A, the second front side recessed portion 24B has one or more protruding portions 248a extending radially outward from the outer peripheral wall 248 along the circumferential direction. The overhanging portion 248 a is located on the front side of the surface of the outer flat portion 27. Similar to the first front side recessed portion 24A, the overhang portion 248a abuts (engages) with the surface of the inner standing portion 373 of the light source tray 37, as shown in FIG. As a result, the light source tray 37 (light source unit 3) is attached to the instrument body 2. Thus, the overhang portion 248a constitutes a part of the light source tray mounting portion, and the overhang portion 248a of the first front side recessed portion 24A constitutes the light source tray attachment portion.
As shown in FIG. 14B, the light source tray 37 is mounted in a state in which the curved portion 373a of the inner standing portion 373 of the light source tray 37 is aligned with the protruding portion 248a. After the two outer flat portions 27 are brought into contact with each other, the light source tray 37 is relatively rotated around the center of the instrument body 2, so that the overhanging portion 284 a is engaged with the inner standing portion 373.

(6) Front-side standing portion This will be described with reference to FIG.
The instrument body 2 has a front side standing portion 25 that stands on the front side from the inner flat portion 21. The front side standing portion 25 is provided on the inner side in the radial direction with respect to the first front side recessed portion 24A, the second front side recessed portion 24B, and the connecting wall 24C.
There are a plurality of front side standing portions 25 at intervals in the circumferential direction. Here, there are a total of four front-side standing portions 25 at an equal angle (90 degrees) in the circumferential direction. Specifically, a first part (the right side in FIG. 6A) where the cable 39 (see FIG. 12) connected to the power supply board 41 is located inside the part connected to the light source unit 3 and the instrument body 2 Perpendicular to the second part (left side in FIG. 6A) located on the opposite side of the first part across the center of the imaginary line, and the imaginary line segment connecting the center of the instrument body 2, the first part, and the second part In addition, it is provided at four locations, a third part and a fourth part (upper side and lower side in FIG. 6A) located on an imaginary line segment passing through the center of the instrument body 2.

This will be described with reference to FIG.
The front-side standing portion 25 has a pair of rib portions 251 standing from the inner peripheral wall of the first front-side recessed portion 24A or the second front-side recessed portion 24B or the other front-side standing portion 25 facing the connecting wall 24C, A pair of rib portions 251 and a standing plate portion 253 standing in a plate shape in a state orthogonal to the pair of rib portions 251 are provided. Note that the upright plate portion 25 provided in the first part is not provided with the upright plate portion 253 due to the influence of the cable 39 described above.
The pair of rib portions 251 are spaced in the circumferential direction from the inner flat portion 21 to the bottom wall 241a of the first portion 241 of the first front side recessed portion 24A or the second front side recessed portion 24B or up to the vicinity of the bottom wall 241a. Set up. The standing plate portion 253 connects the pair of rib portions 251. Thereby, front side recessed part 24A, 24B can be reinforced. The standing plate portion 253 is a recessed region 253a in which a central portion between the pair of rib portions 251 is recessed toward the first front side recessed portion 24A or the second front side recessed portion 24B. Thereby, the standing board part 253 can be structurally reinforced.

This will be described with reference to FIG.
As shown to (a) of FIG. 11, it has the chip | tip part 251a in the bottomed cylindrical part 20 side rather than the standing board part 253 which is the front side edge of a pair of rib part 251. FIG. The front end of the rib portion 251 excluding the chipped portion 251a and the standing plate portion 253 are aligned in the front and back direction.
The front side end of the chipped portion 251a supports the power supply substrate 41 from the back side as shown in FIG. The surface on the center side of the instrument body 2 in the standing plate portion 253 is in contact with or close to the end surface of the power supply substrate 41. As described above, the front-side standing portion 25 constitutes a positioning portion for the power supply substrate 41 and a support portion for supporting the power supply substrate 41.

This will be described with reference to FIG.
The instrument main body 2 has a connection standing portion 255 that stands on the front side in a state where the rib portions 251 of the front side standing portion 25 adjacent in the circumferential direction are connected. The connection standing portion 255 has an arc shape centered on the center of the instrument body 2 when viewed from the front side. Thereby, the instrument main body 2 and the front side standing part 25 can be structurally reinforced.
As shown in FIG. 11A, the inner peripheral surface of the connecting standing portion 255 comes close to or abuts on the outer peripheral end surface of the sheet member 29 that covers the back side recessed portion 22 of the instrument body 2. That is, the connecting standing portion 255 has a positioning function for positioning the sheet member 29. The sheet member 29 has a function of preventing insects or the like from entering the back side recessed portion 22 or preventing insects or the like from entering the inside of the apparatus from the back side recessed portion 22. The sheet member 29 is attached to the instrument body 2 with an adhesive or the like.

(7) Front side protrusion A description will be given with reference to FIG.
The instrument main body 2 has a front side protruding portion 26 that protrudes to the front side. Here, the front side protruding portion 26 is provided by using the back side recessed portion 22. The back side recessed part 22 is provided in the bottom wall of the back side recessed part 22 which exists inside the front side standing part 25 which has the standing board part 253 (center side of the instrument main body 2).
As shown in FIG. 7, the front side protruding portion 26 is configured by a boss portion 261, and the boss portion 261 is provided with a screw hole 263. The protruding front end surface of the boss portion 261 is at the same position as the front end surface of the chipped portion 251 a of the rib portion 251 of the front side standing portion 25 in the front and back direction of the instrument body 2.
The front side protruding portion 26 has a plurality of rib portions 265 on the outer peripheral surface of the boss portion 261. As a result, the boss portion 261 is structurally reinforced.
As shown in FIG. 11B, a screw 95 that passes through the through hole of the power supply substrate 41 is screwed into the screw hole 263. As a result, the power supply substrate 41 supported by the chipped portion 251 a of the front side standing portion 25 is fixed to the instrument body 2. That is, the front side protruding part 26 constitutes a board fixing part for fixing the power supply board 41. The front side protruding portion 26 and the front side standing portion 25 constitute a power supply unit mounting portion for mounting the power supply unit 4.

(8) Outside flat part It demonstrates using FIG.
The instrument body 2 has an outer flat portion 27 on the outer peripheral side of the first front side recessed portion 24A, the second front side recessed portion 24B, and the connecting wall 24C. The outer flat portion 27 has an annular shape. The outer flat portion 27 here has an annular shape when viewed from the front side.
As shown in FIG. 2, the outer flat portion 27 is on the back side of the inner flat portion 21 in the front and back direction, and is positioned on the front side of the bottom wall of the back-side recessed portion 22. Thereby, emission of light to a wide range as pendant illumination becomes possible.
The outer flat part 27 has an annular flat part 271 and a front collar part 273 extending from the outer peripheral edge of the flat part 271 to the front side.

The flat portion 271 mounts the light source unit 3 (see FIG. 11). That is, the outer flat portion 27 has a light source unit mounting function for mounting the light source unit 3. The flat portion 271 has a guide 271 a for the cable 39 that electrically connects the power supply unit 4 and the light source unit 3, and a through hole 271 b for connecting the cable 39 and the light source unit 3. The guide 271a protrudes from the flat portion 271 to the front side, and has a groove for the cable 39 in the central portion thereof. The place where the cable 39 and the light source unit 3 are connected is the outer peripheral side of the connecting wall 24C formed between the first front side recessed portion 24A and the second front side recessed portion 24B.
Note that the cable 39 is led out from the front side of the instrument body 2 to the back side through the through hole 21c (see FIG. 8) of the inner flat portion 21, passes through the guide 271a, and passes through the through hole 271b of the outer flat portion 27. Derived to the unit 3 side.

The outer flat portion 27 has an overhang portion 275 that projects from the front side end of the front collar portion 273 toward the center side of the instrument body 2. As shown in FIG. 6A, a plurality of overhang portions 275 are provided at intervals in the circumferential direction. The overhanging portion 275 engages with the front side end of the outer standing portion 375 in the light source tray 37 of the light source unit 3 described later, as shown in FIG. Thus, the overhang portion 275 constitutes a part of the light source tray mounting portion (light source unit mounting portion). The overhang portion 275 corresponds to an example of the “engagement portion” of the present invention.
For mounting the light source tray 37, the curved portion 375a of the outer standing portion 375 of the light source tray 37 is aligned with the protruding portion 275, and the light source tray 37 is brought into contact with the outer flat portion 27 of the instrument body 2. In this state, by rotating the light source tray 37 around the center of the instrument main body 2, the overhanging portion 275 engages with the outer standing portion 375.

4). The light source unit will be described with reference to FIG.
The light source unit 3 includes a light source module 31 having a light source element as a light source on the front side, and a light source tray 37 on which the light source module 31 is mounted. Here, the light source tray 37 is made of an insulating resin material. Examples of the resin material include polycarbonate (PC). Thereby, for example, even if the instrument body 2 is made of a metal material, no insulation measure is required.

(1) Light source module The light source module 31 includes a plurality of LED elements 32 and a wiring body 33 on which these are mounted. Here, there are a plurality of light source modules 31 (for example, three), and the three light source modules 31 have an annular plate shape as a whole. Here, it has an annular shape. The LED element corresponds to an example of a “light source element” according to the present invention.
The wiring body 33 is composed of a plurality of conductive pieces (34, 35). There are two types of the plurality of conductive pieces: an inner conductive piece 34 located on the inner side in the annular plate shape and an outer conductive piece 35 located on the outer side in the annular plate shape. Here, the inner conductive piece 34 and the outer conductive piece 35 have an arc shape. The inner conductive piece 34 and the outer conductive piece 35 are made of thin metal plates.

The outer conductive piece 35 has such a length that a plurality of (for example, six) LED elements 32 can be mounted in the circumferential direction (also the longitudinal direction of the conductive piece). The inner conductive piece 34 includes a plurality of (for example, six, the same number of LED elements mounted on the outer conductive piece 35) in the circumferential direction, and a conductive piece having a length capable of mounting the LED elements 32 in the circumferential direction. There are two types of conductive pieces having such a length that a plurality of half (for example, three) LED elements 32 can be mounted. The longer conductive piece is referred to as an inner conductive piece 34A, and the shorter conductive piece is referred to as an inner conductive piece 34B. When it is not necessary to distinguish between the two types of inner conductive pieces having different lengths, the reference numeral “34” is used.
The inner conductive pieces 34, the outer conductive pieces 35, and the inner conductive pieces 34 and the outer conductive pieces 35 are spaced apart. Thereby, insulation is ensured.

The inner conductive piece 34A and the outer conductive piece 35 are arranged in a state shifted by a half length in the circumferential direction. In other words, one inner conductive piece 34A is arranged so as to overlap with two adjacent outer conductive pieces 35 in the circumferential direction only by a half length.
The inner conductive piece 34B has the same shape as each piece when one inner conductive piece 34A is cut in half in the circumferential direction. The inner conductive pieces 34B are arranged as one set adjacent to each other in the circumferential direction. Here, there are three sets, and these three sets are arranged at intervals of 120 degrees in the circumferential direction.
A cable 39 is connected to one of the three sets of inner conductive pieces 34B. Of the three sets, two sets of inner conductive pieces 34B (corresponding to an example of the “conductive piece located at the end of the wiring path” of the present invention) function as a connecting portion with another adjacent light source module 31. . That is, the extending portion (one light source module 31) of one inner conductive piece 34B is coupled in a state of being overlapped with the other inner conductive piece 34B (the other light source module 31). For example, solder is used for the coupling. In addition, the code | symbol of this connection part is shown in FIG. 12 as "341."

The LED element 32 is connected to the inner conductive piece 34 and the outer conductive piece 35 so as to straddle the radial direction. That is, one electrode of the LED element 32 is connected to the inner conductive piece 34, and the other electrode of the LED element 32 is connected to the outer conductive piece 35. Thereby, a wiring path is comprised.
The gap between the inner conductive pieces 34 adjacent in the circumferential direction is configured such that the center side of the annular light source module 31 is widened. The gap between the outer conductive pieces 35 adjacent to each other in the circumferential direction is configured such that the side opposite to the center (outer side) of the annular light source module 31 is widened.

(2) Light source tray The light source tray 37 has an annular shape corresponding to the shape of the light source module 31. Since the light source module 31 here has an annular shape, the light source tray 37 also has an annular shape.
The light source tray 37 includes an annular flat portion 371, an inner standing portion 373 standing from the inner periphery of the flat portion 371 to the front side, and an outer standing portion 375 standing from the outer periphery to the front side. . The light source tray 37 is made of a light-transmitting thermoplastic resin material (for example, polycarbonate PC), so that light emitted from the light source module 31 can be transmitted and uniform light is emitted from the lighting device A. be able to.

(2-1) Flat Part The flat part 371 constitutes a support part that supports the light source module 31. Accordingly, the light source unit 3 can be configured without reinforcing the conductive pieces 34 and 35 in the light source module 31 including the plurality of conductive pieces 34 and 35 and the plurality of LED elements 32.
The flat portion 371 has a rod-shaped portion 371a extending in a rod shape on the front side. The rod-shaped portions 371 a are provided correspondingly between the inner conductive pieces 34 and between the outer conductive pieces 35 of the light source module 31. When the light source module 31 is mounted on the light source tray 37, the rod-shaped portion 371a extends from between the inner conductive pieces 34 and between the outer conductive pieces 35 as shown in FIG. The rod-shaped portion 371a corresponds to an example of the “extension portion” in the present invention.
The rod-shaped portion 371a is made of a thermoplastic resin, and after the light source module 31 is disposed, the tip portion is melted to form a locking portion that locks the surfaces of the inner conductive piece 34 and the outer conductive piece 35. That is, the rod-shaped portion 371 a has a light source module fixing function for fixing the light source module 31 to the light source tray 37. Accordingly, even if the LED element 32 is simply mounted on the conductive pieces 34 and 35, the conductive pieces 34 and 35 of the wiring body 33 are restricted from being deformed or displaced. The portion where the tip portion is melted corresponds to an example of “the melted portion of the stretched portion” of the present invention.

As shown in FIG. 12, the flat portion 371 has a plate-like portion 371b extending in a plate shape on the front side. The plate-like portion 371b extends in the radial direction at the flat portion 371. A plurality of (for example, three) plate-like portions 371b are provided at intervals in the circumferential direction, and are provided correspondingly between the outer conductive pieces 35 located on the outer peripheral side of the connection portion 341 of the inner conductive piece 34B in the light source module 31. It has been. When the light source module 31 is mounted on the light source tray 37, the plate-like portion 371b is positioned between the outer conductive pieces 35 outside the connection portion 341, as shown in FIG. Thereby, movement of the inner side conductive piece 34 and the outer side conductive piece 35 in the peripheral part of the connection part 341 can be controlled, and generation | occurrence | production of a disconnection can be prevented. The plate-like portion 371 b has a light source module positioning function for positioning the light source module 31 with respect to the light source tray 37.

The flat portion 371 has a U-shaped portion 371c (see FIG. 12) extending in a “U” shape on the front side. The U-shaped portion 371 c is provided on the outer peripheral edge side of the connection portion with the cable 39 in the flat portion 371. The U-shaped portion 371 c is continuously provided on the outer peripheral side of the plate-shaped portion 371 b formed at the connection portion with the cable 39. When the light source module 31 is mounted on the light source tray 37, as shown in FIG. 11A, the U-shaped portion 371 c is located outside the inner conductive piece 34 </ b> B connected to the cable 39. Is located in the chipped portion 351 (see FIG. 12). Thereby, movement of the inner side conductive piece 34 and the outer side conductive piece 35 in the peripheral part of the part electrically connected can be controlled, and generation | occurrence | production of a disconnection can be prevented. The U-shaped portion 371 c has a light source module positioning function for positioning the light source module 31 with respect to the light source tray 37.
The flat portion 371 has a through hole 371d for the cable 39 connected to the power supply unit 4.

(2-2) Inside Standing Portion This will be described with reference to FIG.
The inner standing portion 373 extends to the front side from the wiring body 33 of the light source module 31. Thereby, the wiring body 33 of the light source module 31 can be protected.
The inner standing portion 373 has a curved portion 373 a that curves toward the outer standing portion 375. A plurality of curved portions 373a are formed at intervals in the circumferential direction. When the state in which the light source module 31 is arranged on the light source tray 37 is viewed from the front side, the curved portion 373a projects so as to reach the inner peripheral edge of the light source module 31 as shown in FIG. Thus, the radial positioning of the light source module 31 in the light source tray 37 is performed.

The inner standing portion 373 has a chipped portion 373b as shown in FIG. 13 at the connection portion with the power supply unit 4 (cable 39). The light source tray 37 has a restricting portion 374 that restricts the passage of the cable 39 in the front and back directions by using the chipped portion 373 b of the inner standing portion 373. The restricting portion 374 has a pair of protruding portions 374a and 374b protruding from the flat portion 371 to the front side, and there are two sets. One set of protruding portions 374 a and 374 b is for one lead wire of the cable 39. The protruding tips of the pair of protruding portions 374a and 374b are close to each other, and the protruding portions 374a and 374b can be elastically deformed in the circumferential direction (perspective direction). Thereby, passage of the lead wire between the pair of projecting portions 374a and 374b is allowed, and the disconnection of the lead wire can be restricted.

The light source tray 37 includes an overhanging portion 376 that projects from the inner surface (center side surface) of the inner standing portion 373 toward the center, and a through hole 376 a formed in the overhanging portion 376. As shown in FIG. 11, a screw 96 is inserted into the through hole 376a from the front side. The screw 96 is screwed into the screw hole 21a (see FIG. 6A) of the inner flat portion 21 located between the first front side recessed portion 24A and the second front side recessed portion 24B of the instrument body 2. Thereby, the light source unit 3 is fixed to the instrument body 2.
As shown in FIG. 13, a standing portion 377 standing on the front side is formed on the periphery of the overhang portion 376, and a screw 96 is arranged in a space formed by the overhang portion 376 and the standing portion 377. (See FIG. 11).

(2-3) Outer Standing Part The outer standing part 375 extends to the front side of the wiring body 33 of the light source module 31. Thereby, the wiring body 33 of the light source module 31 can be protected.
The outer standing portion 375 has a curved portion 375 a that curves toward the inner standing portion 373. A plurality of curved portions 375a are formed at intervals in the circumferential direction. When the state in which the light source module 31 is arranged on the light source tray 37 is viewed from the front side, the curved portion 375a projects so as to reach the outer peripheral edge of the light source module 31 as shown in FIG. Accordingly, the light source module 31 in the light source tray 37 is positioned outward in the radial direction.

5. The power supply unit will be described with reference to FIG.
The power supply unit 4 has a power supply function for supplying power to the light source unit 3. Here, the power supply unit 4 also has a dimming function for dimming the LED element 32. These functions are achieved by the power supply circuit.
The power supply unit 4 includes a power supply board 41 and a plurality of electronic components 43 mounted on the power supply board 41. The power supply circuit is configured by connecting a plurality of electronic components 43. In the figure, a plurality of electronic components are described as two blocks. Here, the power supply unit 4 is provided in a wide area at the center of the instrument body 2. For this reason, the power supply board 41 can be made large (the area can be widened), a single-sided mounting (with a wiring pattern only on the surface) type can be used, and the cost can be reduced.
Here, the power supply unit 4 includes a night lamp on the power supply board 41. The nightlight is included in a block showing a plurality of electronic components 43. As a result, the light of the nightlight passes through the power supply cover 5 and soft light is emitted.

Here, the power supply substrate 41 has a square shape with chamfered corners. The power supply board 41 is attached to the instrument body 2. A screw 95 is used for attachment, and the power supply board 41 has a through hole for the screw 95. The power supply board 41 provided in the vicinity of the two opposite sides of the through hole has a groove 41a into which the standing plate portion 253 of the front side standing portion 25 of the instrument body 2 is fitted. There are two grooves 41a apart from each other, and the portion where the two grooves 41a are formed is one of the four sides. As a result, it is possible to prevent the power supply unit 4 from being attached to the instrument body 2 in the wrong direction.

6). The power supply cover will be described with reference to FIG.
The power supply cover 5 has a bottomed cylindrical shape and includes a cylindrical portion 51 and a bottom portion 53. The power supply cover 5 has a function of covering the power supply unit 4. The power supply cover 5 is attached to the instrument main body 2 and functions as a housing for housing the power supply unit 4 with the instrument main body 2. Here, the power supply cover 5 is made of a translucent resin material (for example, a flame retardant polycarbonate in consideration of safety) containing a diffusing agent that can emit light from a nightlight.

(6-1) Cylindrical portion The cross-sectional shape of the cylindrical portion 51 is annular.
The cylindrical part 51 has one or more projecting pieces 511 that project outward in the radial direction at the opening side end. There are two overhanging pieces 511 spaced in the circumferential direction. As shown in FIG. 10A, the projecting piece 511 is inserted into the front side recessed portion 24 from the through groove 242b of the second portion 242 of the front side recessed portion 24 of the instrument body 2, and is engaged with the bottom wall 242c. To do. Thereby, the power supply cover 5 is attached to the instrument main body 2. The overhanging piece 511 constitutes a mounting part to the instrument body 2.

The cylinder part 51 has an L-shaped extending part 513 that extends outward in the radial direction after extending to the back side at the opening side end. The L-shaped extending portion 513 has a through hole 513a in a portion extending outward in the radial direction. When the projecting piece 511 is engaged with the bottom wall 242c of the instrument body 2, the L-shaped extending portion 513 has a back surface third of the first front side recessed portion 24A of the instrument body 2 as shown in FIG. It abuts against the surface of the portion 243. In this state, the screw 94 is inserted from the front side through the through hole 513a of the L-shaped extending portion 513 and screwed into the screw hole 243b of the third portion 243. Thereby, the power supply cover 5 is fixed to the instrument main body 2. The L-shaped extending portion 513 constitutes a fixing portion that fixes the power supply cover 5 to the instrument body 2. Note that the L-shaped extending portion 513 has rib portions 513b on both sides of the portion extending in the radial direction, as shown in FIG. Thereby, the L-shaped extending portion 513 is reinforced.

The cylindrical portion 51 has a curved portion 515 that is curved toward the cylindrical axis of the cylindrical portion 51 in the peripheral portion of the connection portion between the cable 48 and the light source unit 3.
The cylinder part 51 has a pair of grooves 516 extending from the opening side end to the front side as one set, and has a plurality of sets (for example, three sets) at intervals in the circumferential direction. The cylindrical portion 51 has a convex portion 518 that protrudes outward in the radial direction at an inter-groove portion 517 located between the pair of grooves 516. The convex portion 518 is at the approximate center in the front and back direction of the inter-groove portion 517. The cylindrical portion 51 has a thin portion 519 having a small thickness on the back side of the convex portion 518 in the inter-groove portion 517. By the thin portion 519, the protruding amount of the convex portion 518 (the flat area on the back surface) can be increased from the outer surface of the thin portion 519. The convex portion 518 is fitted (engaged) with the through hole 611b of the front cover 61 as shown in FIG. Further, the inter-groove portion 517 can be elastically deformed inward and outward in the radial direction by the pair of grooves 516. In addition, when the thickness of the cylinder part 51 is thin and the convex part 518 can be elastically deformed to radial direction, a pair of groove | channel 516 may not be provided.

The cylindrical part 51 has a pair of protrusions 521 extending in the front and back direction as one set, and has a plurality of sets (for example, three sets) at intervals in the circumferential direction. The cylinder part 51 has a thin part 523 having a small thickness on the back side in the cylinder axis direction with respect to the pair of protrusions 521.

(6-2) Bottom As shown in FIG. 2, the bottom 53 bulges to the front side in a circular arc shape in cross section. As shown in FIG. 15, the bottom portion 53 has a recessed portion 531 that is recessed in the back side at the center portion, and a through hole 533 formed in the bottom portion of the recessed portion 531. The recessed portion 531 is recessed in a bowl shape.
As shown in FIGS. 2 to 4, a bush 57 made of silicon or the like having a through hole in the center is attached to the through hole 533. Note that the string 83 of the pull switch 8 passes through the through hole of the bush 57. Note that the through hole of the bush 57 is small and restricts the invasion of insects through the through hole.

7). Light Source Cover The light source cover 6 is formed by combining a front cover 61 located on the front side of the instrument body 2 and a back cover 65 located on the back side of the instrument body 2 as shown in FIGS. 3 and 4. The light source cover 6 is integrated by attaching the front cover 61, the back cover, and 65 separately to the instrument body 2 side. The front cover 61 and the back cover 65 are made of a translucent material, for example, a resin material. Here, both covers utilize the same translucent resin material (for example, polypropylene (PP)).
The light source cover 6 has an annular shape having a radial width when viewed from the front side or the back side. Here, it has an annular shape. In other words, the light source cover 6 has a rotating body shape in which a predetermined shape separated in the radial direction from the central axis of the bottomed cylindrical portion 20 of the instrument body 2 is rotated around the central axis. Yes. The predetermined shape here is a shape close to a semi-elliptical shape which is a half of an ellipse whose major axis is the radial direction.

(7-1) Front Cover This will be described with reference to FIG.
The front cover 61 has a shape in which the lower half of the semi-elliptical cross section is rotated around an imaginary line axis passing through the center of the instrument body 2 (the same as the cylinder axis of the bottomed cylindrical portion 20). doing.
The front cover 61 includes a cylindrical portion 611 having a virtual line as a cylindrical axis, and a front plate portion 613 disposed on the radially outer side of the cylindrical portion 611.

(7-1-1) Cylinder Part The cylinder part 611 has a plurality (for example, three) of grooves 611a extending from the back side end to the front side at intervals in the circumferential direction. When the front cover 61 is viewed from the side, the groove 611a has a long rectangular shape on the front and back sides, and has an opening side end portion that extends to the back side.
As shown in FIG. 17, the pair of protrusions 521 of the cylindrical portion 51 of the power supply cover 5 are fitted into the groove 611 a from the back side. Thereby, the front cover 61 can be prevented from rotating around the cylinder axis of the cylinder portion 611 with respect to the power supply cover 5. The groove 611a constitutes a rotation restricting portion for the power cover 5 of the front cover 61.

As shown in FIG. 16, the cylindrical portion 611 has a plurality of (for example, three) through-holes 611 b formed at the center in the front and back direction at intervals in the circumferential direction. The through hole 611b is provided between two grooves 611a adjacent in the circumferential direction.
As shown in FIG. 17, the projection 518 of the cylindrical portion 51 of the power supply cover 5 is fitted into the through hole 611 b. As a result, the front cover 61 is attached to the power supply cover 5. The through hole 611 b constitutes a mounting portion for mounting the front cover 61 to the power supply cover 5.

The cylindrical portion 611 has an inner flange portion 611c that protrudes toward the cylindrical axis at the front side end (that is, the coupling portion with the front plate portion 613) (see FIG. 19). As shown in FIG. 10C, the inner flange portion 611 c is fitted to the stepped portion 55 of the connecting portion between the cylindrical portion 51 and the bottom portion 53 of the power supply cover 5.

(7-1-2) Front Plate Portion The front plate portion 613 has a groove 613a that is recessed on the front side at substantially the entire circumference of the opening side end surface as shown in FIG. A protruding portion 653a of the back cover 65 shown in FIG. 19B is fitted in the groove 613a. Thereby, it is possible to prevent the front cover 61 and the back cover 65 from being displaced in the radial direction. As described above, the groove 613a constitutes a shift prevention portion.

As shown in FIG. 19B, the front plate portion 613 has a plate-like portion 613b extending from the inner surface of the opening-side end portion to the back side, and a convex portion 613c provided on the outer surface of the plate-like portion 613b. doing. When viewed from the protruding direction, the convex portion 613c has a “U” shape that opens on the front side, and has a concave portion 613d in the U shape.
As shown in FIG. 19, the convex portion 613 c fits into a concave portion 655 d on the back side of the convex portion 655 c of the back plate portion 653 of the back cover 65. Further, the convex portion 655c of the back plate portion 653 of the back cover 65 is fitted into the concave portion 613d. Thereby, the front cover 61 and the back cover 65 are engaged with each other in a double structure, and both can be firmly coupled. As described above, the convex portion 613 c and the concave portion 613 d of the front plate portion 613 constitute a coupling portion with the back cover 65.

(7-2) Back Cover This will be described with reference to FIG.
The back cover 65 was rotated around the upper half of the semi-elliptical cross section around an imaginary line axis passing through the center of the instrument body 2 (same as the cylinder axis of the bottomed tubular portion 20 of the instrument body 2). It has a shape like this.
The back cover 65 includes a tube portion 651 having a virtual line as a tube axis, and a back plate portion 653 disposed on the radially outer side of the tube portion 651.

(7-2-1) Cylindrical portion As shown in FIG. 18, the cylindrical portion 651 includes a pair of grooves 651a extending from the opening side end to the back side, and a plurality of sets (for example, four sets) spaced in the circumferential direction. ) The cylindrical portion 651 has a convex portion 651c protruding inward in the radial direction at an inter-groove portion 651b positioned between the pair of grooves 651a. The convex portion 651c is on the front side portion of the inter-groove portion 651b. The cylindrical portion 651 has a thin portion 651d having a small thickness on both sides of the convex portion 651c in the inter-groove portion 651b. In addition, the convex part 651c is fitted (engaged) with the through-hole 226a of the outer wall 226 of the back side recessed part 22 of the instrument main body 2, as shown in (c) of FIG. Thus, the convex portion 651c constitutes a mounting portion for mounting the back cover 65 to the instrument body 2. The inter-groove portion 651b can be elastically deformed inward and outward in the radial direction by the pair of grooves 651a. In addition, when the cylindrical portion 651 is thin and the convex portion 651c can be elastically deformed in the radial direction, the pair of grooves 651a may not be provided.

As shown in FIGS. 18 and 20, the cylindrical portion 651 includes a chipped portion 651e that opens on the opening side, and a box-shaped extending portion 651f that extends from the periphery of the chipped portion 651e into a box shape that opens on the front side from the periphery of the cylindrical portion 651e. have. The cylindrical portion 651 has a through hole 651h in the back wall 651g of the box-like extending portion 651f. As shown in FIG. 20, the cylindrical portion 651 has a groove 651j in the end wall 651i of the box-shaped extending portion 651f.
The box-shaped extending portion 651f is inserted into the back side recessed portion 22 through the chipped portion 223a of the instrument main body 2 shown in FIG. In this state, the screw 91 shown in FIG. 20 is inserted through the through hole 651h of the box-like extending portion 651f and screwed into the screw hole 212a of the boss 212 of the instrument body 2. Thereby, the back cover 65 is fixed to the instrument main body 2. Thus, the back wall 651g and the through hole 561h constitute a fixed portion.
When the back cover 65 is attached to the instrument body 2, the cylindrical part 651 of the back cover 65 is formed between the outer wall 226 of the back side recessed part 22 of the instrument body 2 and the standing part 231 of the back side standing part 23. Inserted between. In this inserted state, the box-shaped extended portion 651f is hidden in the back side recessed portion 22, and the housing side engaging portion 16 of the suspension member 1 is engaged with the extended plate portion 223 of the instrument body 2 as shown in FIG. Will not interfere.
When the back cover 65 is attached to the instrument main body 2, the rib 213 shown in FIG. 6B fits into the groove 651j of the end wall 651i of the box-like extended portion 651f.

(7-2-2) Back Plate Portion As shown in FIG. 18, the back plate portion 653 has a ridge portion 653a that protrudes to the front side on substantially the entire circumference of the opening side end surface. The protruding portion 653a is fitted into the groove 613a of the front cover 61 shown in FIG. Thereby, it is possible to prevent the front cover 61 and the back cover 65 from being displaced in the radial direction. In this way, the protruding portion 653a constitutes a deviation preventing portion.

As shown in the enlarged view of FIG. 18, the back plate portion 653 has a recessed portion 655 that is recessed in the thickness direction from the inner surface of the opening side end portion. The recessed portion 655 includes an inner recessed portion 655a that is recessed from the inner surface to the protruding portion 653a, and an outer recessed portion 655b that is recessed from the inner recessed portion 655a beyond the protruding portion 653a.
The bottom portion of the outer recessed portion 655b has a convex portion 655c protruding inward in the radial direction and a concave portion 655d on the back side of the cylindrical portion 651 in the convex portion 655c in the cylindrical axis direction (see FIG. 19).
As shown in FIG. 19, the convex portion 655 c is fitted into the concave portion 613 d of the front plate portion 613 of the front cover 61. Further, the convex portion 613c of the front plate portion 613 of the front cover 61 is fitted into the concave portion 655d. Thereby, the front cover 61 and the back cover 65 are engaged with each other in a double structure, and both can be firmly coupled. As described above, the convex portion 655 c and the concave portion 655 d of the back plate portion 653 constitute a coupling portion with the front cover 61.

As shown in FIG. 18, the back plate portion 653 has an extending portion 656 that extends from the back side portion in the tube axis direction of the tube portion 651 with respect to the recessed portion 655 so as to cover the recessed portion 655. Here, the extending portion 656 extends in a rib shape and has two as one set. The extending portion 656 is provided in a state of being separated from the recessed portion 655 of the back plate portion 653 (there is a gap).
In a state where the concave portion 613d of the plate-like portion 613b of the front cover 61 is engaged with the convex portion 655c in the concave portion 655 of the back cover 65, the gap between the extended portion 656 and the concave portion 655 is formed. A plate-like portion 613b is inserted. Thereby, it can prevent that the extending | stretching part 656 contact | abuts to the plate-shaped part 613b, and an engagement state is cancelled | released easily. Thus, the extending portion 656 constitutes a support portion that supports the plate-like portion 613b from the back side.

(7-3) Coupling Portion As shown in FIG. 21, the light source cover 6 is substantially symmetrical on the front and back surfaces with respect to the bonding surface when the opening ends of the front cover 61 and the back cover 65 are coupled to each other. It is configured to be. The term “substantially” means that the difference in thickness between the front cover 61 and the back cover 65 at the same distance from the joint surface is within a range of 15% or less with the front cover 61 as a reference. As a result, the light source cover 6 around the coupling surface can be made uniform. Since the front cover 61 and the back cover 65 are made of the same material, the front cover 61 and the back cover 65 shine uniformly on the front and back of the joint surface.
The joining surface here is a surface where the groove 613a and the plate-like portion 613b of the front plate portion 613 of the front cover 61 are not formed, and a surface where the protruding portion 653a of the back plate portion 653 of the back cover 65 is not formed. Is a surface in contact with or close to. Further, the coupling portion 613e of the front cover 61 refers to a position away from the coupling surface by a distance twice as long as the extending length of the plate-like portion 613b to the front side. Similarly, the coupling portion 653b of the back cover 65 refers to a position away from the coupling surface by a distance twice as long as the extending length of the plate-like portion 613b.

In the cross section, the joint portion 613e of the front cover 61 has a radius of 15 [mm] or more in the cross section, and the inner peripheral surface is a flat surface extending substantially linearly in the front and back direction. In the cross section, the joint portion 653b of the back cover 65 has an outer peripheral surface having a radius of 15 [mm] or more, and the inner peripheral surface is a flat surface extending substantially linearly in the front and back direction. Thereby, it is possible to prevent shadows (luminance spots) due to the shape at the joint portion from appearing on the shade 7. In addition, a cross section is a cross section orthogonal to the center axis | shaft extended in cyclic | annular form in the light source cover 6 which carries out an annular shape. Further, when the radius is defined by a curvature, the light source cover 6 is configured such that the curvature of the joint portion between the back cover and the front cover is 0.07 or less in a cross section perpendicular to the central axis extending in a ring shape. .
In the light source cover 6, the shape of the outer peripheral surface of the light source cover 6 is substantially the front and back with respect to the coupling surface. The term “substantially” means that the difference in radius is within a range of 15% or less with reference to the front cover 61.

As shown in FIG. 21, the back cover 65 is attached to the instrument body 2 in a state of being separated from the outer flat portion 27 on which the light source unit 3 in the instrument body 2 is mounted on the front side. As a result, the shade 7 is evenly irradiated without any shadow or the like generated on the back cover 65 due to contact with the instrument body 2 during lighting. Note that the term “separate” means that the minimum distance between the back cover 65 and the instrument body 2 is 0.5 [mm] or more, thereby preventing the two from coming into contact with each other over time.

8). Shade A description will be given with reference to FIG.
The shade 7 includes a cap-shaped portion 73 having an opening 71 at the top, a recessed cylindrical portion 75 that is recessed in a cylindrical shape from the opening 71 of the cap-shaped portion 73, and a cylindrical shaft from the front side end of the recessed cylindrical portion 75. And a flange 77 projecting toward the end. The collar portion 77 has an opening 79 in the center as shown in FIG. The flange portion 77 comes into contact with the back surface of the step portion 19 (see FIG. 5) of the housing body 13 of the suspension member 1. As a result, the shade 7 is supported by the suspension member 1.
The shade 7 is made of a translucent material. Examples of the light-transmitting material include general-purpose polystyrene (GPPS) having excellent light-transmitting property. The shade 7 has an uneven portion on the inner surface of the cap portion 73 and excluding the front opening. The concavo-convex portion is formed by, for example, embossing. Thereby, the light emitted from the light source cover 6 is diffused.
The illuminating device A is configured using a translucent member so that the light from the light source unit 3 is diffused throughout the illuminating device A. As a result, the light is emitted not only from the emission direction but also from the entire illumination device A.

Although the embodiment has been described above, the present invention is not limited to this embodiment, and for example, the following modification may be used. Moreover, what combined embodiment, a modification, and modifications may be sufficient.
In addition, examples that are not described in the embodiments and modifications and design changes that do not depart from the gist are also included in the present invention.

<Modification>
1. Illumination device The illumination device A according to the embodiment has a built-in power supply unit 4. For example, the power supply unit is arranged on the back side of the surface to be mounted, and the lighting power is directly supplied to the light source unit using a cord. Also good.
Although the pull switch 8 is provided in the embodiment, a remote controller or the like may be used instead, or a remote controller may be provided.

2. Instrument body The instrument body 2 of the embodiment is made of an insulating material. However, in the case of not requiring insulation of the equipment body in relation to the light source unit (light source module 31), it may be made of a metal material. Good. Moreover, when the light source unit 3 has the light source tray 37 of an insulating material, you may comprise an instrument main body with a metal material.
Although the instrument main body 2 of the embodiment includes the light source unit 3 in which the light source module 31 is mounted on the light source tray 37 of an insulating material in the outer flat portion 27, the instrument main body 2 is made of an insulating material. Alternatively, the light source module 31 may be directly mounted. In this case, the rod-shaped portion 371a, the plate-shaped portion 371b, etc., which the light source tray 37 has, may be formed on the instrument body.
In the embodiment, the rod-shaped portion 371a, which is an example of the extending portion, extends from between adjacent conductive pieces. For example, a through hole may be provided in the conductive piece, and the through hole may be inserted. You may make it insert a piece and a through-hole.
In the embodiment, the tip portion of the rod-like portion 371a is melted. However, for example, the tip portion of a plate-like portion disposed between adjacent conductive pieces may be melted.
The instrument body 2 of the embodiment has a circular outer shape when viewed from the back side or the front side, but may have other shapes such as a rectangular shape, a rectangular shape, a polygonal shape, an elliptical shape, an oval shape, and the like. .
The instrument body 2 has a bottomed cylindrical part 20, a back-side recessed part 22, a front-side recessed part 24, and the like. If the mechanical characteristics of the instrument body 2 can be satisfied, for example, the instrument body 2 is configured by one flat part. Alternatively, a single flat portion and a reinforcing rib may be provided as appropriate.
The instrument body 2 has a mounting portion for mounting the hanging member 1, the light source cover 6, the power supply unit 4 and the like, and a fixing portion for fixing, but structures, adhesives, screws, rivets, etc. other than the embodiment May be used, or the engagement relationship may be reversed.

3. Power supply unit The power supply unit 4 generates lighting power for lighting or adjusts the lighting power for dimming. For example, the light receiving element mounted on the power supply board is based on the lighting signal received from the remote controller. In addition, a control circuit for controlling lighting conditions, a toning circuit for toning when a light source element having a different light emission color is provided, and the like may be provided. When such a circuit is provided, these functions may be provided as additional functions on a substrate different from the power supply substrate described in the embodiment, or may be provided on the power supply substrate described in the embodiment. Note that the power supply substrate 41 of the embodiment may have another shape such as a circular shape, a rectangular shape, or a polygonal shape.

4). The power supply cover In the embodiment, the power supply cover 5 that covers the power supply unit 4 is provided. However, for example, the power supply unit 5 may be eliminated by covering the power supply unit 4 with a front cover. However, in consideration of light transmittance, there is a possibility of appearance of a shadow of the light source unit.

5. The light source unit The light source unit 3 has an annular shape when viewed from the front side, but may be a polygonal ring such as a triangle, and the light source elements (LED elements 32) are arranged in a plurality of rows such as two rows. Also good.
The light source unit 3 may include a plurality of types of light source elements having different emission colors for color matching.
The light source tray 37 has a through hole 376a in a portion through which a screw 96 for fixing to the instrument body 2 is inserted. If the head of the screw can be engaged, a chipped portion is used instead of the through hole. Also good.
Although the LED element is used as the light source element, other elements such as an organic EL element and an LD element may be used.

6). Light source cover The light source cover 6 separates the back cover 65 from the instrument body 2 so as not to contact the peripheral portion of the outer flat portion 27 of the instrument body 2.
However, when the light source tray 37 and the instrument main body 2 are made of a non-light transmissive material, the light source cover and the instrument main body may contact each other.
The light source cover 6 includes a front cover 61 and a back cover 65, and both are mounted in an engaging structure. For example, the front cover 61 and the back cover 65 may be fixed with an adhesive, The engaging portion and the fitting portion may be fused with an ultrasonic welding machine.

7). The shade 7 exemplifies a Western-style design with an arc-like appearance, but may be a Japanese-style design with a square appearance, as long as it is a shape supported by the suspension member 1.

A lighting device 1 hanging member 2 instrument body 3 light source unit 4 power supply unit 5 power supply cover 6 light source cover 32 LED element (light source element)
33 Wiring body 34 Conductive piece 35 Conductive piece 37 Tray

Claims (7)

One or a plurality of wiring bodies provided with a plurality of sets of two conductive pieces spaced apart as a set of wiring paths;
An insulating tray on which the one or a plurality of wiring bodies are mounted;
A light source unit comprising: one or a plurality of light source elements mounted so as to straddle the opposite side of the two conductive pieces constituting the wiring path from the tray. There are a plurality of the wiring bodies,
The plurality of wiring bodies are coupled in a state in which the conductive piece located at the end of the wiring path is overlapped with the other conductive piece located at the end of the wiring path of another wiring body. The light source unit described. The tray is made of a plastic resin material,
The tray has an extending portion extending to the conductive piece side,
The light source unit according to claim 2, wherein the wiring body is fixed to the tray by the conductive piece being locked by a melted portion of the extending portion. The light source unit according to claim 3, wherein the extending portion is inserted between adjacent conductive pieces or through a through hole of the conductive piece. A light source unit comprising a light source element;
An instrument body on which the light source unit is mounted on the surface,
The lighting device is the light source unit according to any one of claims 1 to 4. The lighting device according to claim 5, wherein the fixture main body includes an engaging portion that engages with the tray when the light source unit moves in a state of being placed on the fixture main body. The lighting device according to claim 6, wherein the instrument body has a screw portion for a screw that passes through a through hole or a chipped portion of the tray in the engaged state.

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