Lighting fixture

Abstract

To provide a lighting fixture capable of improving workability of wiring work.SOLUTION: A lighting fixture includes: a light source; a frame having a tabular light source mounting surface part where the light source is mounted; an insulation plate; and an electric wire in which one end part is connected to the light source, and which supplies power to the light source. The insulation plate includes: an insulation fixing part fixed being sandwiched between the light source and the light source mounting surface part of the frame; and an electric wire holding part formed so as to rise on the light source side from a peripheral edge of the insulation fixing part, and formed with an internal wiring opening for allowing the other end part of the electric wire to pass penetrating in the plate thickness direction. The electric wire is passed through the internal wiring opening and held, and is drawn to the outside from an external wiring opening formed in the light source mounting surface part of the frame.SELECTED DRAWING: Figure 15

Description

[Technical field]

[0001] The present disclosure relates to lighting fixtures, and more particularly to a wire retention structure. [Background technology]

[0002] Conventionally, there is a lighting device that includes an elongated light source, an elongated main body that supports the light source, and an electric wire that supplies power to the light source (see, for example, Patent Document 1). In the lighting device of Patent Document 1, the main body has a base and an attachment member, and the whole is integrated by fixing the attachment member to which the light source is attached to the base. In addition, the lighting device of Patent Document 1 has walls that face each other in the base and the attachment member, and a space through which the electric wire passes is formed by a gap between the walls and extends in the longitudinal direction. In the lighting device of Patent Document 1, one end of the electric wire is connected to a connector provided on the light source. The other end of the electric wire is passed through and held in the space formed by the gap between the walls, and is drawn out to the outside through a through hole formed in the wall of the main body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-164317 A Summary of the Invention [Problem to be solved by the invention]

[0004] The lighting device of Patent Document 1 holds electric wires by passing them through a space formed between the wall parts. This space is formed to extend in the longitudinal direction. Therefore, in the lighting device of Patent Document 1, the electric wires must be arranged in the longitudinal wiring space while being pushed in along the extension direction of the wiring space, which leads to a decrease in the efficiency of wiring work.

[0005] The present disclosure is intended to solve the above-mentioned problems, and provides a lighting fixture that can improve the workability of wiring work. [Means for solving the problem]

[0006] The lighting fixture of the present disclosure comprises a light source, a frame having a plate-shaped light source mounting surface portion to which the light source is attached, an insulating plate, and an electric wire having one end connected to the light source and supplying power to the light source, wherein the insulating plate comprises an insulating fixing portion sandwiched and fixed between the light source and the light source mounting surface portion of the frame, and an electric wire holding portion formed to extend from the periphery of the insulating fixing portion so as to rise toward the light source side and having an internal wire passage port formed through the plate thickness direction for passing the other end of the electric wire, and the electric wire is passed through and held in the internal wire passage port, and is pulled out to the outside from an external wire passage port formed on the light source mounting surface portion of the frame. Effect of the Invention

[0007] In the lighting fixture according to the present disclosure, the insulating plate has an internal wiring port through which the electric wire passes, and the electric wire is held by passing through the internal wiring port. Since the lighting fixture is held by simply passing the electric wire through the internal wiring port, the workability of wiring work can be improved. [Brief description of the drawings]

[0008] [Figure 1] 1 is an exploded perspective view showing a lighting fixture according to a first embodiment and a system ceiling to which the lighting fixture is attached. [Diagram 2] 1 is a perspective view of a lighting fixture according to a first embodiment attached to a system ceiling, as viewed from above. FIG. [Diagram 3] FIG. 2 is an exploded perspective view of the lighting fixture according to the first embodiment. [Figure 4] FIG. 2 is an exploded perspective view of the light source unit according to the first embodiment. [Diagram 5] 2 is a view of the lighting fixture according to the first embodiment from below with the cover removed from the light source unit. FIG. [Figure 6] FIG. 6 is an enlarged view of the area surrounded by the dotted line in FIG. 5. [Figure 7] 2 is an enlarged partial cross-sectional view of the light source unit according to the first embodiment. FIG. [Figure 8] 4 is an enlarged perspective view of an insulating plate of the light source unit according to the first embodiment. FIG. [Figure 9] 6A and 6B are diagrams illustrating modified internal wire-passing openings of the insulating plate of the light source unit according to the first embodiment. [Figure 10] 4 is an enlarged perspective view of a wiring bush of the light source unit according to the first embodiment, as viewed from the Z1 side. FIG. [Figure 11] 4 is an enlarged perspective view of a wiring bush of the light source unit according to the first embodiment, as viewed from the Z2 side. FIG. [Figure 12] 4 is a diagram showing a state in which an insulating plate is placed on a frame of the light source unit according to the first embodiment. FIG. [Figure 13] 2 is a diagram showing a state in which a light source is placed on a frame of the light source unit according to the first embodiment. FIG. [Figure 14] 14 is a diagram showing a state in which a cover holder is fixed to the assembly in the state of FIG. 13. FIG. [Figure 15] FIG. 15 is a diagram showing a state in which electric wires are connected to the assembly in the state shown in FIG. 14. [Figure 16] 16 is a diagram showing a state in which a cover is attached to the assembly in the state shown in FIG. 15. FIG. [Figure 17] 17 is a diagram showing a state in which a cover is attached to the assembly in the state shown in FIG. 16, completing the assembly of the light source unit. [Figure 18] 18 is a diagram showing a state in which the light source unit in FIG. 17 is attached to a fixture body. [Figure 19] 18 is a diagram showing a state in which the light source unit in FIG. 17 has been completely attached to the fixture body. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of a lighting device 1 according to the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited to the embodiment described below. Also, in the following drawings, including FIG. 1, the size relationship of each component may differ from the actual one. Also, in the following description, terms indicating directions are used as appropriate to facilitate understanding, but these terms are for the purpose of explanation and do not limit the present disclosure. Examples of terms indicating directions include "up", "down", "right", "left", "front", and "rear".

[0010] Embodiment 1 Fig. 1 is an exploded perspective view showing a lighting fixture 1 according to embodiment 1 and a system ceiling 9 to which the lighting fixture 1 is attached. Fig. 2 is a perspective view showing the lighting fixture 1 according to embodiment 1 attached to the system ceiling 9, as viewed from above. Fig. 3 is an exploded perspective view of the lighting fixture 1 according to embodiment 1.

[0011] The lighting fixture 1 is fixed to a system ceiling 9. The system ceiling 9 is formed by combining a plurality of support members 7 such as so-called T-bars in a lattice pattern. The system ceiling 9 has a ceiling opening 8 surrounded by four support members 7. The lighting fixture 1 is once inserted from below the ceiling opening 8 of the system ceiling 9 into the ceiling space above, and then fixed to the system ceiling 9. In detail, the lighting fixture 1 is once inserted into the ceiling space, and then lowered downward toward the system ceiling 9, so that a mounting member 6 (described later) provided on the lighting fixture 1 is hung on the support member 7 of the system ceiling 9 as shown in FIG. 2 and fixed to the system ceiling 9. Here, the width direction of the lighting fixture 1 is the X direction, the depth direction of the lighting fixture 1 is the Y direction, and the height direction of the lighting fixture 1 is the Z direction. In addition, in the Z direction, the ceiling side is the Z1 direction, and the floor side is the Z2 direction.

[0012] The lighting fixture 1 includes a fixture body 2, a power supply device 3, a light source unit 4, a facility plate 5, and a mounting member 6.

[0013] (Apparatus body 2) The fixture body 2 has a size similar to that of the ceiling opening 8 of the system ceiling 9, and is in the shape of a frame. The fixture body 2 has four side panels 21, two partition panels 26, and a bottom panel 27.

[0014] (Side Panel 21) The side plates 21 are plate-shaped members. Two of the side plates 21 are disposed opposite each other, and the remaining two side plates 21 are also disposed opposite each other, forming a rectangular frame body by the four side plates 21. The side plates 21 are provided at their lower ends with flanges 22 extending outward. Of the four side plates 21, two side plates 21 facing each other in the Y direction have mounting members 6 attached to their outer surfaces for mounting the lighting fixture 1 to the system ceiling 9. Two mounting members 6 are provided side by side in the X direction. The lighting fixture 1 is fixed to the system ceiling 9 by hanging the mounting members 6 on the support members 7 of the system ceiling 9 as shown in FIG. 2.

[0015] (Partition 26) 1 and 3, the two partition plates 26 have the same length as the side plates 21, and divide the inside of the rectangular frame formed by the four side plates 21 into three spaces. Within the fixture main body 2, the two spaces on both sides in the X direction are light source accommodating sections 2a, and the space surrounded by the two light source accommodating sections 2a is an equipment accommodating section 2b. As shown in FIG. 3, the light source accommodating section 2a accommodates the power supply device 3 and the light source unit 4, and the equipment accommodating section 2b accommodates equipment parts (not shown) such as a speaker or an emergency light.

[0016] (Bottom plate 27) 2, the bottom plate 27 connects the upper ends of the four side plates 21. In the bottom plate 27, a ventilation opening 27a, which is an air conditioning return for ventilating between the living room and the attic space, is formed in a portion corresponding to the light source housing section 2a.

[0017] (Power supply unit 3) The power supply device 3 is attached to the bottom plate 27 in the light source accommodating portion 2a of the fixture body 2. The power supply device 3 supplies power to the light source unit 4, and is connected to an external power supply (not shown).

[0018] (Light source unit 4) The light source unit 4 is turned on by power supplied from the power supply device 3, and is accommodated in the light source accommodating section 2a. The light source unit 4 has a frame 41, a cover 42, an end plate section 43, and an attachment section 44. The frame 41 is a long member that constitutes the outer casing of the light source unit 4, and a light source 40 (see FIG. 4) described below is attached to the frame 41. The end plate section 43 is a member that covers both ends of the frame 41 in the Y direction. The attachment section 44 is provided on the end plate section 43. The light source unit 4 is attached to the fixture body 2 by attaching the attachment section 44 to the side plate 21 of the fixture body 2 using a screw or the like.

[0019] (Facility Plate 5) The equipment plate 5 is a rectangular plate-like member. The equipment plate 5 is attached to the equipment housing portion 2b of the device body 2 and covers the equipment members housed in the equipment housing portion 2b.

[0020] (Detailed configuration of light source unit 4) FIG. 4 is an exploded perspective view of the light source unit 4 according to the first embodiment. FIG. 5 is a view of the light source unit 4 of the lighting fixture 1 according to the first embodiment with the cover 42 removed, viewed from below. FIG. 6 is an enlarged view of the portion surrounded by the dotted line in FIG. 5. FIG. 7 is an enlarged partial cross-sectional view of the light source unit 4 according to the first embodiment. FIG. 8 is an enlarged perspective view of the insulating plate 46 of the light source unit 4 according to the first embodiment. FIG. 9 is a view showing a modified example of the internal wire passage opening 46b1 of the insulating plate 46 of the light source unit 4 according to the first embodiment. FIG. 10 is an enlarged perspective view of the wiring bush 47 of the light source unit 4 according to the first embodiment, viewed from the Z1 side. FIG. 11 is an enlarged perspective view of the wiring bush 47 of the light source unit 4 according to the first embodiment, viewed from the Z2 side. In the following description, the expressions "inside" and "outside" (including inside, outside, inner surface, and outer surface) may be used to describe the positional relationship and direction, but unless otherwise specified, the central part side of the light source unit 4 is the inside, and the outer side of the light source unit 4 is the outside.

[0021] As described above, the light source unit 4 has the frame 41, the cover 42, the end plate portion 43, and the mounting portion 44. The light source unit 4 further has a light source 40, a cover holder 45, an insulating plate 46, and a wiring bush 47.

[0022] (Light source 40) The light source 40 has a light emitting element 40a, a substrate 40b on which the light emitting element 40a is mounted on a surface 401, and a connector 40c. In the illustrated example, two light sources 40 are provided spaced apart in the X direction, but one light source or three or more light sources may be provided. The light source 40 is configured in an elongated shape with the X direction as the short side direction and the Y direction as the long side direction. The light emitting element 40a emits light when power is supplied.

[0023] The light emitting elements 40a are, for example, light emitting diodes (hereinafter referred to as LEDs) and are mounted in a row or a staggered pattern along the Y direction, which is the longitudinal direction, on a surface 401, which is the mounting surface of the substrate 40b. The light emitting elements 40a may be a solid state laser, a semiconductor laser, an organic EL (Electro Luminescence), an inorganic EL, or the like. The substrate 40b may be a glass-epoxy substrate (FR-4), a glass-composite substrate (CEM-3), a paper-epoxy substrate (FR-3), a paper-phenol substrate (XPC), a metal-based substrate, or the like.

[0024] As described in detail below, the light source 40 is attached to the light source mounting surface portion 41a by sandwiching one long side portion 40b1 of the substrate 40b between a light source mounting surface portion 41a (described later) of the frame 41 and a fixing portion 45a (described later) of the cover holder 45 and pressing the light source mounting surface portion 41a by the fixing portion 45a.

[0025] The connectors 40c are portions to which electric wires 50 (see FIG. 15 described later) for supplying power to the light-emitting elements 40a are connected. Two connectors 40c are provided at each end of the longitudinal direction of the substrate 40b, on both sides of the mounting portion of the light-emitting elements 40a. There are four connectors 40c, namely, connector 40c1, connector 40c2, connector 40c3, and connector 40c4. The connectors 40c1 and 40c2 are connectors to which electric wires 50 that connect the inside and outside of the light source unit 4 are connected. The connectors 40c3 and 40c4 are connectors to which electric wires 50 that electrically connect the substrates 40b to each other inside the light source unit 4 are connected.

[0026] (Frame 41) The frame 41 is an elongated member that constitutes the outer casing of the light source unit 4. The frame 41 is elongated in the Y direction, and has a rectangular plate-shaped light source mounting surface portion 41a to which the light source 40 is attached, and a pair of rectangular plate-shaped side portions 41b extending in the Z2 direction from both ends in the X direction, which is the short side direction of the light source mounting surface portion 41a. The frame 41 is formed by integrating the light source mounting surface portion 41a and the pair of side portions 41b. The frame 41 is formed of, for example, a sheet metal member.

[0027] The light source mounting surface portion 41a has a light source movement restricting portion 10 around the mounting area where the light source 40 is mounted, which contacts the light source 40 and restricts the movement of the light source 40 in the planar direction on the light source mounting surface portion 41a. The light source movement restricting portion 10 has a first restricting portion 41a1 and a second restricting portion 41a2.

[0028] The first restricting portion 41a1 is a portion that restricts the movement of the light source 40 to one side in the short-side direction (X direction) by contacting an edge of one long side portion 40b1 of the substrate 40b of the light source 40 as shown in FIG. 6. Since a fixing portion 45a of a cover holder 45 described later is fixed to the side of the long side portion 40b1 of the substrate 40b in the light source mounting surface portion 41a, the first restricting portion 41a1 can be said to be a portion that restricts the movement of the light source 40 in the direction approaching the fixing portion 45a. The first restricting portion 41a1 is configured as a protrusion formed by, for example, embossing so as to protrude in the Z2 direction from the plate surface of the frame 41. In the illustrated example, three first restricting portions 41a1 are formed at intervals in the Y direction as shown in FIG. 4, but the number is not limited to three, and may be two, four or more. Further, the first restricting portion 41a1 is not limited to a protrusion that contacts the edge of the long side portion 40b1, but may be any configuration that contacts the long side portion 40b1 and has the above-mentioned function.

[0029] The second restricting portion 41a2 is a portion that contacts the other long side portion 40b2 in the short side direction (X direction) of the substrate 40b of the light source 40 to restrict movement of the light source 40 to the other side in the short side direction. The second restricting portion 41a2 can also be said to be a portion that restricts movement of the light source 40 in a direction away from the fixing portion 45a. The second restricting portion 41a2 is formed of a cut-and-raised piece cut and raised from the plate surface of the light source mounting surface portion 41a. As shown in FIG. 7, the second restricting portion 41a2 formed of the cut-and-raised piece extends in the Z2 direction from the plate surface of the light source mounting surface portion 41a, and then extends in a direction facing the Z direction on the surface 401 of the substrate 40b.

[0030] The second restricting portion 41a2 formed of a cut-and-raised piece is adjusted in its position on the light source mounting surface portion 41a so that a portion extending in the Z2 direction contacts the edge of the long side portion 40b2 of the substrate 40b attached to the mounting region of the light source mounting surface portion 41a. The second restricting portion 41a2 is not limited to a cut-and-raised piece that contacts the edge of the long side portion 40b2, and may be any configuration that contacts the long side portion 40b2 and has the above function.

[0031] The light source mounting surface portion 41a further has a first fixing hole 41a3, an external wire passage port 41a4, and a mounting hole 41a5. The first fixing hole 41a3 is a hole for fixing the cover holder 45. The first fixing holes 41a3 are formed at intervals in the Y direction. The external wire passage port 41a4 is a hole for passing the electric wire 50. One or more external wire passage ports 41a4 are provided for one light source 40. The light source unit 4 according to the first embodiment has two light sources 40, and two external wire passage ports 41a4 are provided. The external wire passage ports 41a4 are formed at one end of the light source mounting surface portion 41a in the Y direction, one at each end in the X direction. Note that one or three or more external wire passage ports 41a4 may be provided. The external wire passage ports 41a4 may be arranged side by side in the Y direction, or may be formed at the other end in the X direction. The mounting hole 41a5 is a hole through which a fastening member 12 such as a screw (see FIG. 7) is inserted for attaching the end plate portion 43 and the mounting portion 44 to the outer surface of the light source mounting surface portion 41a. The mounting hole 41a5 is formed at one end portion in the Y direction of the light source mounting surface portion 41a, between the mounting regions where the two light sources 40 are attached.

[0032] (Cover 42) The cover 42 is a rectangular plate-like member. The cover 42 covers the light source 40 attached to the light source attachment surface portion 41a of the frame 41. The cover 42 is elongated with the X direction as the short side direction and the Y direction as the long side direction. The cover 42 is a light-transmitting cover, and is formed of a resin material such as acrylic.

[0033] (Cover holder 45) The cover holder 45 is fixed to the frame 41 and holds the cover 42. A pair of the cover holders 45 are provided spaced apart in the X direction so as to hold both ends of the cover 42 in the X direction. The cover holder 45 has a fixing portion 45a, an abutting portion 45b, a gap forming portion 45c, and a wiring bush arrangement portion 45d. The cover holder 45 can be formed, for example, by bending a sheet metal member. The cover holder 45 also functions as an attachment member for attaching the light source 40 to the light source attachment surface portion 41a of the frame 41. Since there are two cover holders 45, in the illustrated example, the two light sources 40 are attached to the light source attachment surface portion 41a of the frame 41 by the two cover holders 45, but this is not limited thereto.

[0034] The fixing portion 45a is a portion fixed to the light source mounting surface portion 41a of the frame 41 and is configured in a long plate shape. The fixing portion 45a is a portion fixed to the light source mounting surface portion 41a on the side of one long side portion 40b1 of the light source 40. The fixing portion 45a has a long plate-shaped long plate portion 45a1 extending in the Y direction which is the longitudinal direction of the light source 40, and a claw portion 45a2 protruding from an edge portion 45a11 of the long plate portion 45a1 on the light source 40 side.

[0035] The long plate portion 45a1 is a portion fixed to the light source mounting surface portion 41a by the fastening member 11. The fastening member 11 has a screw 11a and a nut 11b as shown in FIG. 7. The fastening member 11 is not limited to a configuration having the screw 11a and the nut 11b, and may be composed of only the screw 11a or may be composed of a bolt. The long plate portion 45a1 has a second fixing hole 45a3 into which the fastening member 11 is inserted. A plurality of second fixing holes 45a3 are formed at intervals in the Y direction. The second fixing holes 45a3 are formed at positions corresponding to the first fixing holes 41a3 formed in the frame 41.

[0036] The claw portion 45a2 is a portion that elastically deforms when the cover holder 45 is fixed to the frame 41 with the fastening member 11, and presses the light source 40 against the light source mounting surface portion 41a. The claw portion 45a2 is configured such that at least the tip portion of the claw portion 45a2 overlaps with the surface 401 of the light source 40 when the cover holder 45 is fixed to the light source mounting surface portion 41a. The claw portion 45a2 is formed flush with the long plate portion 45a1 before the cover holder 45 is fixed to the light source mounting surface portion 41a.

[0037] The claw portions 45a2 are formed at intervals in the Y direction. The claw portions 45a2 are formed at positions that do not overlap with the first restricting portion 41a1 provided on the light source mounting surface portion 41a when the cover holder 45 is fixed to the light source mounting surface portion 41a. In other words, the first restricting portion 41a1 is formed at a position on the light source mounting surface portion 41a that does not overlap with the claw portion 45a2 of the cover holder 45 fixed to the light source mounting surface portion 41a, more specifically, at a position between the fixing portion 45a and one long side portion 40b1 of the light source 40 that does not overlap with the claw portion 45a2 as shown in FIG.

[0038] The contact portion 45b is formed in a long plate shape extending perpendicularly in the Z2 direction from the edge of the fixed portion 45a on the opposite side to the light source 40. The contact portion 45b is formed so that its length in the Y direction is longer than the length of the fixed portion 45a in the Y direction. The contact portion 45b has both ends 45b1 in the Y direction bent perpendicularly inward. The contact portion 45b contacts the side portion 41b and the end plate portion 43 of the frame 41 when the cover holder 45 is fixed to the light source mounting surface portion 41a.

[0039] The gap forming portion 45c is formed in a long plate shape extending vertically inward from the lower end of the abutting portion 45b. As shown in Fig. 7, the gap forming portion 45c is separated from the flange portion 41b1 extending inward from the lower end of the side portion 41b of the frame 41 when the cover holder 45 is fixed to the light source mounting surface portion 41a. The gap forming portion 45c forms a gap between the flange portion 41b1 of the frame 41 and the gap forming portion 45c, into which the cover 42 is inserted and held.

[0040] The wiring bushing arrangement portion 45d is formed at both ends of the long plate portion 45a1 in the Y direction. The wiring bushing arrangement portion 45d is configured in a plate shape. A wiring bushing insertion hole 45e is formed in the wiring bushing arrangement portion 45d. The wiring bushing insertion hole 45e, through which the wiring bushing 47 is inserted to protect the electric wire 50, is a portion in which the wiring bushing 47 attached to the external wire passage port 41a4 of the light source mounting surface portion 41a is disposed. The wiring bushing insertion hole 45e is formed at a position communicating with the external wire passage port 41a4 when the cover holder 45 is attached to the frame 41.

[0041] (Insulating plate 46) The insulating plate 46 is for ensuring an insulating distance between the charging portion of the light emitting element 40a and the light source mounting surface portion 41a to which the light source 40 including the light emitting element 40a is attached. The insulating plate 46 is a plate-shaped member and is made of a transparent material. The insulating plate 46 has a rectangular plate-shaped insulating fixing portion 46a. The insulating fixing portion 46a is formed to extend in the X direction and the Y direction. The insulating plate 46 is fixed by sandwiching the insulating fixing portion 46a between the light source 40 and the light source mounting surface portion 41a. A pair of insulating plates 46 are provided spaced apart in the Y direction, and one insulating plate 46 is sandwiched and fixed between one end of the substrate 40b in the Y direction and the light source mounting surface portion 41a, and the other insulating plate 46 is sandwiched and fixed between the other end of the substrate 40b in the Y direction and the light source mounting surface portion 41a.

[0042] As shown in Fig. 8, the insulating fixing portion 46a has a through hole 46a1 and a through hole 46a2. The through hole 46a1 and the through hole 46a2 are provided to avoid interference with a protruding portion protruding from a portion of the light source mounting surface portion 41a other than the mounting region where the light source 40 is mounted. The protruding portion is the second restricting portion 41a2 and the head of the fastening member 12 (see Fig. 7). The through hole 46a1 is a hole through which the second restricting portion 41a2 passes, and the through hole 46a2 is a hole through which the head of the fastening member 12 passes.

[0043] The insulating plate 46 also has a wire holding function for holding the wire 50, and has a wire holding portion 46b for holding the wire 50. The wire holding portion 46b is formed extending in a rising direction from the periphery of the insulating fixing portion 46a. In a state in which the insulating fixing portion 46a is sandwiched and fixed between the substrate 40b and the light source mounting surface portion 41a, the wire holding portion 46b is formed extending in a rising direction from the periphery of the insulating fixing portion 46a toward the Z2 side, in other words, toward the light source 40 side, as shown in FIG. 12 described later. The wire holding portion 46b is a rectangular plate, and is formed extending perpendicularly to the insulating fixing portion 46a from the end side in the Y direction of the insulating fixing portion 46a.

[0044] 13, the electric wire holding portion 46b is located outside an outer edge 40b3 on one end side in the longitudinal direction of the light source 40 in a state in which the insulating fixing portion 46a is sandwiched and fixed between the substrate 40b and the light source mounting surface portion 41a. In other words, the electric wire holding portion 46b is formed to extend perpendicularly to the insulating fixing portion 46a at a position outside the outer edge 40b3 on one end side in the longitudinal direction of the substrate 40b.

[0045] The electric wire holding portion 46b has an internal wire passage opening 46b1 through which the electric wire 50 passes. The internal wire passage opening 46b1 is formed penetrating the electric wire holding portion 46b in the thickness direction. Two internal wire passage openings 46b1 are formed corresponding to one light source 40. Since there are two light sources 40 in this embodiment, the electric wire holding portion 46b has four internal wire passage openings 46b1. The internal wire passage openings 46b1 are formed at intervals in the X direction. The number of internal wire passage openings 46b1 is not limited to two corresponding to one light source 40. It is sufficient that at least one internal wire passage opening 46b1 is formed corresponding to one light source 40.

[0046] In the illustrated example, the internal wire passage opening 46b1 is configured in a circular shape, but the shape of the internal wire passage opening 46b1 is not limited to a circular shape and may be a rectangular shape, etc. The internal wire passage opening 46b1 may be configured as shown in FIG. 9. FIG. 9 shows three modified examples of the internal wire passage opening 46b1. As shown in FIG. 9, the internal wire passage opening 46b1 may be configured to have a holding hole 51 that holds the electric wire 50 and a slit 52 that is formed extending from the holding hole 51 to the edge of the electric wire holding portion 46b and through which the electric wire 50 is passed. As shown in FIG. 9, the shape of the slit 52 is not limited and may be a straight line, a wave shape, or a step shape. The shape of the holding hole 51 is also not limited and may be a rectangular shape, etc., without being limited to a circular shape as illustrated.

[0047] Since the internal wire passage opening 46b1 has the slit 52, a worker performing assembly work can insert the electric wire 50 into the slit 52 from the edge of the electric wire holding portion 46b and push the electric wire 50 along the slit 52 to reach the holding hole 51. Therefore, since the internal wire passage opening 46b1 of the electric wire holding portion 46b has the slit 52, the workability when passing the electric wire 50 through the internal wire passage opening 46b1 can be improved compared to a configuration without the slit 52.

[0048] The insulating plate 46 having the above configuration has an optical function. The optical function is a reflection function that reflects light or a scattering function that scatters incident light. The insulating plate 46 is made of a highly reflective material and has a high reflection function. The insulating plate 46 has a high reflection function, so that the light source unit 4 can increase the light utilization efficiency and the brightness (sensation) of the end of the light source unit 4. The insulating plate 46 may have a scattering function by being made of a scattering material or by being subjected to a scattering process on the surface. The insulating plate 46 has a scattering function, so that the light source unit 4 can suppress the risk of reflected light being projected onto the cover 42 of the electric wire 50.

[0049] Here, a description will be given of the positional relationship between the internal wire passage opening 46b1 formed in the wire holding portion 46b of the insulating plate 46 and the connector 40c provided on the substrate 40b of the light source 40. As shown in Fig. 13 described later, the light source unit 4 has at least one pair of the connector 40c and the internal wire passage opening 46b1 facing each other in the Y direction.

[0050] "Facing in the Y direction" refers to an arrangement state in which the connector 40c and the internal wire passage opening 46b1 at least partially overlap when viewed in the longitudinal direction (Y direction) of the light source 40. Specifically, "facing in the Y direction" refers to an arrangement in which the connector 40c and the internal wire passage opening 46b1 at least partially overlap in the short-side direction (X direction) of the light source 40 when viewed in the longitudinal direction (Y direction) of the light source 40. Alternatively, "facing in the Y direction" refers to an arrangement in which the connector 40c and the internal wire passage opening 46b1 at least partially overlap in the height direction (Z direction) perpendicular to the short-side direction (X direction) of the light source 40 when viewed in the longitudinal direction (Y direction) of the light source 40.

[0051] In the illustrated example, the connector 40c1 and the internal wire passage port 46b1a face each other in the Y direction. Also, the connector 40c3 (see FIG. 4) and the internal wire passage port 46b1c face each other in the Y direction.

[0052] (Wiring bush 47) The wiring bush 47 is for protecting the electric wire 50. The wiring bush 47 is attached to a portion of the light source mounting surface portion 41a where the external wire port 41a4 is formed, as shown in Fig. 12 described later. One wiring bush 47 is provided for one light source 40, and two are provided in this example. The wiring bush 47 is arranged next to the connector 40c in the X direction.

[0053] As shown in FIG. 10 and FIG. 11, the wiring bush 47 has a first portion 47a attached to the light source mounting surface portion 41a, and a second portion 47b fixed to the first portion 47a and disposed in the wiring bush insertion hole 4e. The wiring bush 47 is fixed with the first portion 47a sandwiched between the wiring bush disposing portion 45d of the cover holder 45 and the light source mounting surface portion 41a. The first portion 47a and the second portion 47b are configured in a rectangular plate shape. The wiring bush 47 has wiring holes 47c penetrating both the first portion 47a and the second portion 47b in the thickness direction. There are two wiring holes 47c, one for power input and one for feed wiring. The wiring hole 47c has a holding hole 47c1 through which the electric wire 50 is passed and held, and a slit 47c2 formed by extending from the holding hole 47c1 to the edges of the first portion 47a and the second portion 47b. The slit 47c2 opens toward the connector 40c1 in the X direction when the wiring bush 47 is attached to the light source attachment surface portion 41a.

[0054] The wiring bush 47 may be attached to the portion of the wiring bush arrangement portion 45d where the wiring bush insertion hole 45e is formed. The wiring bush 47 may be attached to the portion of the wiring bush arrangement portion 45d where the external wire port 41a4 and the wiring bush insertion hole 45e are formed so as to sandwich the light source mounting surface portion 41a and the wiring bush arrangement portion 45d.

[0055] Next, a procedure for assembling the light source unit 4 having the above configuration will be described.

[0056] 12 to 19 are explanatory diagrams of the assembly procedure of the light source unit 4 according to the first embodiment. FIG. 12 is a diagram showing a state in which an insulating plate 46 is placed on the frame 41 of the light source unit 4 according to the first embodiment. FIG. 13 is a diagram showing a state in which a light source 40 is placed on the frame 41 of the light source unit 4 according to the first embodiment. FIG. 14 is a diagram showing a state in which a cover holder 45 is fixed to the assembly in the state of FIG. 13. FIG. 15 is a diagram showing a state in which an electric wire 50 is connected to the assembly in the state of FIG. 14. FIG. 16 is a diagram showing a state in which a cover 42 is attached to the assembly in the state of FIG. 15. FIG. 17 is a diagram showing a state in which the cover 42 is attached to the assembly in the state of FIG. 16 and the assembly of the light source unit 4 is completed. FIG. 18 is a diagram showing a state in which the light source unit 4 in FIG. 17 is attached to the fixture body 2. FIG. 19 is a diagram showing a state in which the attachment of the light source unit 4 in FIG. 17 to the fixture body 2 is completed.

[0057] As shown in FIG. 12, a worker who performs the assembly work turns the frame 41 upside down from the posture at the time of installation, and places the insulating plate 46 on the light source mounting surface portion 41a. The insulating plate 46 is placed on the light source mounting surface portion 41a such that the insulating fixing portion 46a abuts against the light source mounting surface portion 41a, and the electric wire holding portion 46b extends in the Z2 direction and the X direction at one end of the light source mounting surface portion 41a in the Y direction. With the insulating plate 46 placed on the light source mounting surface portion 41a, the second restricting portion 41a2 protruding from the light source mounting surface portion 41a passes through the through hole 46a1. As a result, the insulating plate 46 is placed on the light source mounting surface portion 41a with the insulating fixing portion 46a abutting against the light source mounting surface portion 41a without interfering with the second restricting portion 41a2.

[0058] Further, a through hole 46a2 is formed in the insulating plate 46, and the through hole 46a2 overlaps with a mounting hole 41a5 formed in the light source mounting surface portion 41a when the insulating plate 46 is placed on the light source mounting surface portion 41a. This allows the mounting hole 41a5 to be exposed in the insulating plate 46, and makes it possible to attach the fastening member 12 to the mounting hole 41a5 in a subsequent process.

[0059] Next, the worker places the light source 40 on the insulating plate 46 as shown in Fig. 13. At this time, the worker slides the light source 40 toward the second restricting portion 41a2 as shown by the arrow in Fig. 13, until the light source 40 abuts against the second restricting portion 41a2. In this state, the edge of the long side portion 40b2 of the substrate 40b abuts against the second restricting portion 41a2, and the edge of the long side portion 40b1 of the substrate 40b abuts against the first restricting portion 41a1, so that the movement of the light source 40 in the X direction is restricted.

[0060] Next, the worker fixes the cover holder 45 to the frame 41 as shown in FIG. 14. More specifically, the cover holder 45 is placed on the light source mounting surface 41a of the frame 41 so that the second fixing hole 45a3 of the cover holder 45 faces the first fixing hole 41a3 of the frame 41. In a state in which the cover holder 45 is placed on the light source mounting surface 41a of the frame 41, the abutting portion 45b of the cover holder 45 abuts against the side portion 41b of the frame 41. Then, the cover holder 45 is fastened and fixed to the light source mounting surface 41a of the frame 41 using the fastening member 11. Specifically, as shown by the dotted arrow in FIG. 14, the screw 11a is passed through the first fixing hole 41a3 and the second fixing hole 45a3, and as shown in FIG. 7, the nut 11b is fastened from the tip side of the shaft portion to fasten and fix the cover holder 45 to the light source mounting surface 41a of the frame 41.

[0061] When the cover holder 45 is fastened and fixed to the light source mounting surface 41a of the frame 41 using the fastening members 11, the claws 45a2 in contact with the surface 401 of the light source 40 are elastically deformed with the connection portion with the long plate portion 45a1 as a fulcrum. When this elastic force is applied to the surface 401 of the light source 40, the light source 40 is pressed against the light source mounting surface 41a and attached to the light source mounting surface 41a. Note that, although the claws 45a2 are flush with the long plate portion 45a1 in the above description, they may be slightly inclined with respect to the long plate portion 45a1 in advance, and may be further inclined by fastening and fixing the cover holder 45 using the fastening members 11, so that the elastic force of the claws 45a2 is applied to the surface 401 of the light source 40.

[0062] In the above-described assembly procedure, the wiring bush 47 may be attached to the light source mounting surface portion 41a before the cover holder 45 is fixed to the frame 41 (see Figs. 12 and 13), or may be attached to the light source mounting surface portion 41a or the wiring bush arrangement portion 45d after the cover holder 45 is fixed to the frame 41 (see Fig. 14). The wiring bush 47 may also be attached to the wiring bush arrangement portion 45d before the cover holder 45 is fixed to the frame 41. The shapes of the wiring bush 47, the external wire passage port 41a4, and the wiring bush insertion hole 45e can be appropriately changed depending on the installation procedure of the wiring bush 47.

[0063] Next, the worker wires the electric wires 50 as shown in Fig. 15. The electric wires 50 include electric wires 50a, 50b, 50c, and 50d. Below, an example in which the electric wires 50a, 50b, 50c, and 50d are wired in this order will be described, but the wiring order is arbitrary.

[0064] The worker connects one end of the electric wire 50a to the connector 40c1, and passes the other end of the electric wire 50a through the internal wire passage opening 46b1a of the insulating plate 46 from the inside to the outside, and then passes the other end of the electric wire 50a through the internal wire passage opening 46b1b in the opposite direction to the internal wire passage opening 46b1a, i.e., from the outside to the inside.

[0065] Here, as described above, the connector 40c1 and the internal wire passage port 46b1a face each other in the Y direction. Therefore, the lighting fixture 1 can arrange the electric wire 50a in a straight line. Since the lighting fixture 1 can arrange the electric wire 50a in a straight line, the length dimension of the electric wire 50a can be minimized, and the component cost can be reduced. Since the lighting fixture 1 can minimize the length dimension of the electric wire 50a, the risk of propagation of crosstalk (radiation noise) can be reduced. Furthermore, since the lighting fixture 1 can minimize the length dimension of the electric wire 50a, the risk of the electric wire 50a being projected onto the cover 42 due to reflected light can be reduced.

[0066] Furthermore, since the insulating fixing portion 46a of the insulating plate 46 is sandwiched and fixed between the substrate 40b and the light source mounting surface portion 41a, the insulating plate 46 is less likely to move, and wiring work is easier.

[0067] Then, the worker passes the other end of the electric wire 50a through the wiring hole 47c of the wiring bush 47, passes the electric wire 50a through the external wiring port 41a4 formed in the light source mounting surface portion 41a, and draws it out to the outside of the frame 41. The other end of the electric wire 50a drawn out to the outside of the frame 41 is connected to the power supply device 3. Here, the external wiring port 41a4 is provided near the connector 40c1 in the light source mounting surface portion 41a. Specifically, the light source mounting surface portion 41a is elongated in the longitudinal direction of the light source 40, and the external wiring port 41a4 is formed at one end of the light source 40 on the same side as one end of the light source 40 having the connector 40c1 in the longitudinal direction of the light source mounting surface portion 41a. Therefore, the lighting fixture 1 holds the electric wire 50a at the internal wiring port 46b1a, and can immediately draw the electric wire 50 out to the outside from the nearby external wiring port 41a4, thereby improving the workability of the wiring work.

[0068] The worker also connects one end of the electric wire 50b to the connector 40c2. The worker then passes the other end of the electric wire 50b through the other wiring hole 47c formed in the wiring bush 47, and further through the other external wiring port 41a4 formed in the light source mounting surface portion 41a, and draws it out to the outside of the frame 41. The other end of the electric wire 50a drawn out to the outside of the frame 41 is connected to the power supply device 3.

[0069] Here, when passing the electric wires 50a and 50b through the wiring hole 47c of the wiring bush 47, the electric wires 50a and 50b can be easily passed through the wiring hole 47c by passing them through the retaining hole 47c1 via the slit 47c2 shown in Figures 10 and 11.

[0070] In the illustrated example, since there are two light sources 40, the above-mentioned operations are performed for each of the two light sources 40.

[0071] Then, the worker connects the substrates 40b of the two light sources 40 to each other using the electric wires 50c and 50d as described below.

[0072] The worker connects one end of the electric wire 50c to one of the two connectors 40c3, and passes the other end of the electric wire 50c from inside to outside through the internal wiring port 46b1c that faces the connector 40c3 to which the one end of the electric wire 50c is connected in the Y direction. Then, the worker passes the other end of the electric wire 50c through the other internal wiring port 46b1c in the opposite direction, that is, from outside to inside, and then connects it to the other connector 40c3.

[0073] Here, the connector 40c3 and the internal wire passage port 46b1c face each other in the Y direction. Therefore, the same effect as that obtained by the connector 40c1 and the internal wire passage port 46b1a facing each other in the Y direction can be obtained.

[0074] Similarly, the worker connects one end of the electric wire 50d to one of the two connectors 40c4, and passes the other end of the electric wire 50d from inside to outside through the internal wiring port 46b1d that faces the connector 40c4 to which the one end of the electric wire 50d is connected in the Y direction. Then, the worker passes the other end of the electric wire 50d through the other internal wiring port 46b1d in the opposite direction, that is, from outside to inside, and then connects it to the other connector 40c4.

[0075] Even when the electric wires 50c and 50d are passed through the insulating fixing portion 46a, the insulating fixing portion 46a is sandwiched and fixed between the substrate 40b and the light source mounting surface portion 41a, so that the insulating plate 46 is less likely to move during wiring work, making the work easier.

[0076] By the above wiring, the two light sources 40 are connected to the power supply device 3 in an electrically serial state.

[0077] After completing the wiring work of the electric wires 50, the worker positions the end plate portion 43 and the mounting portion 44 at one end of the frame 41 in the Y direction (the end toward the front in FIG. 16) outside the abutment portion 45b of the cover holder 45 and the electric wire holding portion 46b of the insulating plate 46 as shown in FIG. 16, and fixes them by screwing the fastening member 12 inserted into the mounting hole 41a5 provided in the light source mounting surface portion 41a into the mounting portion 44.

[0078] Next, the cover 42 is slid in the direction of the arrow in FIG. 16 from the other end in the Y direction (the end on the far side in FIG. 16) into the gap formed between the gap forming portion 45c of the cover holder 45 and the flange portion 41b1 of the frame 41 to attach the cover 42. After the cover 42 is attached, the end plate portion 43 and the mounting portion 44 are screwed to the other end in the Y direction of the frame 41 using the fastening member 12. When fixing the end plate portion 43 and the mounting portion 44 to the frame 41, the light source mounting surface portion 41a, the end plate portion 43 and the mounting portion 44 may be fixed so as to be sandwiched between them by tightening a fixing member 14 such as a nut that screws into the fastening member 12 into the fastening member 12 (see FIG. 7).

[0079] 18, the worker places the light source unit 4 in the light source housing portion 2a of the fixture body 2, wires and connects the electric wires in the light source housing portion 2a, and then uses the screw 13 to screw the mounting portion 44 to the fixture body 2. This fixes the light source unit 4 to the fixture body 2.

[0080] In the above-mentioned assembly procedure, a method of assembling the device main body 2 upside down from the installed state shown in FIG. 1 has been exemplified, but the present invention is not limited to this.

[0081] As described above, in the lighting fixture 1, by passing the electric wire 50 through the internal wire passage opening 46b1, the movement of the electric wire 50 is restricted, and the wiring posture of the electric wire 50 can be maintained. Since the lighting fixture 1 can hold the electric wire 50 simply by passing the electric wire 50 through the internal wire passage opening 46b1, there is no need to arrange the electric wire by pushing it in along the extension direction of the wiring space as in the conventional case. Therefore, the lighting fixture 1 can improve the workability of the wiring work.

[0082] The internal wire passage opening 46b1 is formed in the insulating plate 46. In other words, the insulating plate 46 has not only an insulating function but also a wire holding function. Therefore, the lighting device 1 does not require a single-function holding part, such as a clip or adhesive tape, intended only to hold the wire 50. Therefore, the lighting device 1 can reduce parts costs compared to a configuration that requires a holding part.

[0083] As described above, the lighting fixture 1 of the first embodiment includes the light source 40, the frame 41 having the plate-shaped light source mounting surface 41a to which the light source 40 is attached, the insulating plate 46, and the electric wire 50 having one end connected to the light source 40 and supplying power to the light source 40. The insulating plate 46 includes an insulating fixing portion 46a sandwiched and fixed between the light source 40 and the light source mounting surface 41a of the frame 41, and an electric wire holding portion 46b formed to extend from the periphery of the insulating fixing portion 46a so as to rise toward the light source side and having an internal wire passage port 46b1 through which the other end of the electric wire 50 passes, penetrating the plate thickness direction. The electric wire 50 is passed through and held in the internal wire passage port 46b1, and is drawn out to the outside from an external wire passage port 41a4 formed in the light source mounting surface 41a of the frame 41.

[0084] With the above configuration, the lighting fixture 1 can restrict the movement of the electric wire 50 by passing the electric wire 50 through the internal wire passage opening 46b1, and can maintain the wiring posture of the electric wire 50. Since the lighting fixture 1 can hold the electric wire 50 by simply passing the electric wire 50 through the internal wire passage opening 46b1, there is no need to arrange the electric wire while pushing it along the direction in which the wiring space extends, as in the past. Therefore, the lighting fixture 1 can improve the workability of the wiring work. And, the internal wire passage opening 46b1 is formed in the insulating plate 46. By having the internal wire passage opening 46b1, the insulating plate 46 also has an electric wire holding function for holding the electric wire 50 in addition to the insulating function. Therefore, the lighting fixture 1 can have a simpler structure than a configuration in which a holding member for holding the electric wire 50 is provided separately from the insulating plate 46.

[0085] The electric wire holding portion 46b of the insulating plate 46 is formed to extend perpendicularly from the insulating fixing portion 46a at a position outside an outer edge 40b3 on one end side of the light source 40 in the longitudinal direction.

[0086] With the above-described configuration, the internal wire port 46b1 is located outside the light distribution area of ​​the primary light from the light-emitting element 40a. Therefore, the lighting device 1 can prevent the electric wire 50 from overlapping the light-emitting element 40a, and can reduce the risk of the primary light from the light-emitting element 40a projecting the electric wire 50 onto the cover 42. Therefore, the lighting device 1 can eliminate the influence of the electric wire 50 on the optical characteristics and design.

[0087] The light source 40 is elongated and has a connector 40c at one end in the longitudinal direction of the light source 40 to which an end of the electric wire 50 is connected. The connector 40c and the internal wire passage port 46b1 are arranged in a positional relationship in which they at least partially overlap in at least one of the short side direction of the light source 40 and the height direction perpendicular to the short side direction when viewed in the longitudinal direction.

[0088] With the above configuration, the lighting fixture 1 can arrange the electric wire 50a in a straight line. Since the lighting fixture 1 can arrange the electric wire 50 in a straight line, the length dimension of the electric wire 50 can be minimized, and the parts cost can be reduced. Since the lighting fixture 1 can minimize the length dimension of the electric wire 50, the risk of propagation of crosstalk (radiation noise) can be reduced. Furthermore, since the lighting fixture 1 can minimize the length dimension of the electric wire 50, the risk of the electric wire 50 being projected onto the cover 42 due to reflected light can be reduced.

[0089] The internal wire passage opening 46b1 has a holding hole 51 that holds the electric wire 50, and a slit 52 that is formed extending from the holding hole 51 to the edge of the electric wire holding portion 46b and through which the electric wire 50 is passed.

[0090] With the above-described configuration, lighting fixture 1 can be wired to holding hole 51 simply by passing electric wire 50 along slit 52, thereby shortening the assembly time and reducing the assembly cost.

[0091] Two internal wire passage openings 46b1 are formed in the electric wire holding portion 46b, and the electric wire 50 is passed through one of the two electric wire holding portions 46b and through the other of the two electric wire holding portions 46b in the opposite direction to the one of the two electric wire holding portions 46b, thereby holding the electric wire 50.

[0092] With the above-described configuration, the lighting fixture 1 can hold the electric wire 50 more stably than a configuration in which the electric wire 50 is held by one internal wire passage port 46b1.

[0093] The light source mounting surface portion 41a has a protruding portion that protrudes from a portion of the light source mounting surface portion 41a other than the area where the light source 40 is mounted. A through hole 46a1 that avoids interference with the protruding portion is formed in the insulating fixing portion 46a of the insulating plate 46. The protruding portion is a light source movement restricting portion 10 that contacts the long side portion 40b2 of the light source 40 to restrict movement of the light source 40 in the planar direction on the light source mounting surface portion 41a.

[0094] With the above-described configuration, the insulating plate 46 can be disposed on the light source mounting surface portion 41a of the lighting fixture 1 without interfering with the protruding portion. Moreover, the lighting fixture 1 can avoid the arrangement of the insulating plate 46 from deteriorating the ease of assembly of the lighting fixture 1.

[0095] The insulating plate 46 is made of a transparent material.

[0096] With the above configuration, when wiring the electric wire 50, the insulating plate 46 of the lighting fixture 1 does not form a blind spot in the wiring path. Therefore, the lighting fixture 1 can easily perform wiring work on the insulating plate 46. Furthermore, if the insulating plate 46 is made of a colored material, the material color of the insulating plate 46 is visible through the cover 42, which affects the design. However, since the insulating plate 46 of the lighting fixture 1 is made of a transparent material, it is possible to eliminate the effect on the design.

[0097] The insulating plate 46 has a reflecting function for reflecting light.

[0098] With the above-described configuration, the lighting device 1 can increase the light utilization efficiency and the brightness (perception) of the ends of the light source unit 4.

[0099] The insulating plate 46 has a scattering function for scattering incident light.

[0100] With the above-described configuration, the lighting device 1 can reduce the risk of reflected light projecting the electric wires 50 onto the cover 42.

[0101] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) A light source; a frame having a plate-shaped light source mounting surface portion to which the light source is attached; An insulating plate; an electric wire having one end connected to the light source and supplying power to the light source; The insulating plate is an insulating fixing part that is fixed by being sandwiched between the light source and the light source mounting surface part of the frame; and an electric wire holding portion formed to extend from a periphery of the insulating fixing portion toward the light source side and having an internal wire passage port through which the other end of the electric wire passes formed by penetrating in a plate thickness direction, The electric wire is passed through and held in the internal wire passage opening and is pulled out to the outside through an external wire passage opening formed in the light source mounting surface portion of the frame. (Appendix 2) the light source is elongated and has a connector to which the one end of the electric wire is connected at one end in the longitudinal direction of the light source; 2. The lighting fixture according to claim 1, wherein the wire holding portion of the insulating plate is formed to extend vertically from the insulating fixing portion at a position outside an outer edge on one end side of the light source in the longitudinal direction. (Appendix 3) A lighting fixture as described in Appendix 2, wherein the connector and the internal wire port are arranged in a positional relationship in which they at least partially overlap when viewed in the longitudinal direction, in at least one of the short side direction of the light source and the height direction perpendicular to the short side direction. (Appendix 4) The light source mounting surface portion is elongated in the longitudinal direction of the light source, 4. A lighting fixture as described in Appendix 2 or Appendix 3, having, in the longitudinal direction of the light source mounting surface portion, the external wire port at one end on the same side as the one end of the light source having the connector. (Appendix 5) The lighting fixture of any one of Appendices 1 to 4, wherein the internal wire passage port has a retaining hole that holds the electric wire, and a slit that extends from the retaining hole to an edge of the electric wire holding portion and through which the electric wire is passed. (Appendix 6) The internal wire passage openings are formed in two in the electric wire holding portion, The lighting fixture according to any one of Supplementary Note 1 to Supplementary Note 5, wherein the electric wire is passed through one of the two electric wire holding parts and through the other of the two electric wire holding parts in the opposite direction to the one of the two electric wire holding parts to hold the electric wire. (Appendix 7) the light source mounting surface portion has a protrusion protruding from a portion of the light source mounting surface portion other than an area where the light source is mounted, The lighting fixture according to any one of Appendices 1 to 6, wherein the insulating fixing portion of the insulating plate has a through hole formed therein to avoid interference with the protrusion when the insulating fixing portion is sandwiched between the light source and the light source mounting surface portion. (Appendix 8) 8. The lighting device according to claim 7, wherein the protrusion is a light source movement regulating portion that contacts a long side portion of the light source to regulate the movement of the light source in a planar direction on the light source mounting surface. (Appendix 9) 9. The lighting fixture according to claim 1, wherein the insulating plate is made of a transparent material. (Appendix 10) 10. The lighting fixture according to claim 1, wherein the insulating plate has a reflecting function for reflecting light. (Appendix 11) 11. The lighting device according to claim 1, wherein the insulating plate has a scattering function for scattering incident light. [Explanation of symbols]

[0102] 1 Lighting fixture, 2 Fixture body, 2a Light source housing section, 2b Equipment housing section, 3 Power supply unit, 4 Light source unit, 5 Equipment plate, 6 Mounting member, 7 Support member, 8 Ceiling opening, 9 System ceiling, 10 Light source movement regulating section, 11 Fastening member, 11a Screw, 11b Nut, 12 Fastening member, 13 Screw, 14 Fixing member, 21 Side plate, 22 Flange, 26 Partition plate, 27 Bottom plate, 27a Ventilation opening, 40 Light source, 40a Light emitting element, 40b Board, 40b1 Long side portion, 40b2 Long side portion, 40b3 Outer edge, 40c Connector, 40c1 Connector, 40c2 Connector, 40c3 Connector, 40c4 Connector, 41 Frame, 41a Light source mounting surface portion, 41a1 First regulating portion, 41a2 Second regulating portion, 41a3 First fixing hole, 41a4 external wire passage port, 41a5 mounting hole, 41b side portion, 41b1 flange portion, 42 cover, 43 end plate portion, 44 mounting portion, 45 cover holder, 45a fixing portion, 45a1 long plate portion, 45a11 edge portion, 45a2 claw portion, 45a3 second fixing hole, 45b abutment portion, 45b1 both ends, 45c gap forming portion, 45d wiring bush arrangement portion, 45e wiring bush insertion hole, 46 insulating plate, 46a insulating fixing portion, 46a1 through hole, 46a2 through hole, 46b electric wire holding portion, 46b1 internal wire passage port, 46b1a internal wire passage port, 46b1b internal wire passage port, 46b1c internal wire passage port, 46b1d internal wire passage port, 47 Wiring bush, 47a first part, 47b second part, 47c wiring hole, 47c1 retaining hole, 47c2 slit, 50 electric wire, 50a electric wire, 50b electric wire, 50c electric wire, 50d electric wire, 51 retaining hole, 52 slit, 401 surface.

Claims

1. A light source; a frame having a plate-shaped light source mounting surface portion to which the light source is attached; An insulating plate; an electric wire having one end connected to the light source and supplying power to the light source; The insulating plate is an insulating fixing part that is fixed by being sandwiched between the light source and the light source mounting surface part of the frame; and an electric wire holding portion formed to extend from a periphery of the insulating fixing portion toward the light source side and having an internal wire passage port formed to pass the other end of the electric wire through in a plate thickness direction, The electric wire is passed through and held in the internal wire passage opening and is pulled out to the outside through an external wire passage opening formed in the light source mounting surface portion of the frame.

2. the light source is elongated and has a connector to which the one end of the electric wire is connected at one end in a longitudinal direction of the light source; The lighting fixture according to claim 1 , wherein the electric wire holding portion of the insulating plate is formed to extend perpendicularly from the insulating fixing portion at a position outside an outer edge on one end side of the light source in the longitudinal direction.

3. The lighting fixture of claim 2, wherein the connector and the internal wire port are arranged in a positional relationship in which they at least partially overlap in at least one of the short side direction of the light source and the height direction perpendicular to the short side direction when viewed in the longitudinal direction.

4. The light source mounting surface portion is elongated in the longitudinal direction of the light source, 4. The lighting fixture according to claim 2, wherein the external wire port is provided at an end portion of the light source mounting surface portion on the same side as the end portion of the light source having the connector in the longitudinal direction.

5. A lighting fixture as described in any one of claims 1 to 3, wherein the internal wire passage port has a retaining hole that holds the electric wire, and a slit that extends from the retaining hole to the edge of the electric wire holding portion and through which the electric wire is passed.

6. The internal wire passage openings are formed in two in the electric wire holding portion, The lighting fixture according to any one of claims 1 to 3, wherein the electric wire holding portion holds the electric wire by passing the electric wire through one of the two electric wire holding portions in the opposite direction to the one of the two electric wire holding portions.

7. the light source mounting surface portion has a protrusion protruding from a portion of the light source mounting surface portion other than an area where the light source is mounted, A lighting fixture as described in any one of claims 1 to 3, wherein the insulating fixing portion of the insulating plate has a through hole formed therein to avoid interference with the protrusion when the insulating fixing portion is sandwiched between the light source and the light source mounting surface portion.

8. The lighting fixture according to claim 7 , wherein the protrusion is a light source movement restricting portion that contacts a long side portion of the light source to restrict movement of the light source in a planar direction on the light source mounting surface.

9. The lighting device according to any one of claims 1 to 3, wherein the insulating plate is made of a transparent material.

10. The lighting device according to any one of claims 1 to 3, wherein the insulating plate has a reflecting function for reflecting light.

11. The lighting device according to any one of claims 1 to 3, wherein the insulating plate has a scattering function for scattering incident light.

Images