Light source unit and lighting fixture

Abstract

To improve workability of assembly work.SOLUTION: A light source module 2 comprises a long board 200, and a plurality of LEDs 201 arranged on a surface of the board 200. A supporting member 21 comprises: a main part 210 formed in a long plate shape, and opposed to a back surface of the board 200; and one or more locking pieces 213 (protruding parts) protruding from an opposed surface of the main part 210 opposed to the back surface of the board 200, and for forming a space into which an end part of the board 200 is inserted, between itself and the opposed surface of the main part 210. A stepped screw 25 (fixing member) is constituted so as to fix a portion of the board 200 other than the end part of the board 200 to the main part 210. A fixing screw 26 (regulating part) is opposed to an end part in a short direction of the board 200 along the short direction of the board 200, and is formed in a rod shape so as to regulate movement of the end part of the board 200 in a direction for leaving the space.SELECTED DRAWING: Figure 14

Description

[Technical Field]

[0001] The present disclosure relates to a light source unit and a lighting fixture, and more particularly to a light source unit including a light source module and a support member that supports the light source module, and a lighting fixture that includes a fixture body that supports the light source unit. [Background technology]

[0002] As a conventional example, the lighting fixture described in Patent Document 1 is exemplified. The lighting fixture described in Patent Document 1 includes a base and a light-transmitting cover. The base has a long base main body, a light-emitting unit, and an attachment unit. The light-emitting unit has a plurality of light-emitting diode elements and a rectangular circuit board on which the plurality of light-emitting diode elements are mounted.

[0003] The mounting portion has a board holding portion that holds the circuit board of the light-emitting portion. The board holding portion is formed in a horizontally concave shape along the longitudinal direction so as to hold the end of the circuit board. The board holding portions are formed in two locations facing each other so as to sandwich both ends of the circuit board in the longitudinal direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-21441 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the structure of the lighting fixture described in Patent Document 1, in order to have both ends of the circuit board held by the pair of board holding parts, it was necessary to insert the circuit board into the board holding parts of the mounting part from the longitudinal end of the mounting part and slide it. Therefore, in the lighting fixture described in Patent Document 1, it is difficult to improve the workability of the work (assembly work) of attaching the light-emitting part (light source module) to the mounting part (support member).

[0006] An object of the present disclosure is to provide a light source unit and a lighting fixture that can improve the workability of assembly work. [Means for solving the problem]

[0007] A light source unit according to one aspect of the present disclosure includes a long light source module, a long support member that supports the light source module, and one or more fixing members. a mounting member to be mounted on the support member; and a restricting portion. The light source module has a long substrate and a plurality of light-emitting elements arranged on the surface of the substrate. The support member has a main portion formed in a long plate shape and facing the back surface of the substrate, and one or more protrusions protruding from the opposing surface of the main portion facing the back surface of the substrate and forming a space between the opposing surface of the main portion and the main portion into which the end of the substrate can be inserted. The fixing member is configured to fix a part of the substrate other than the end of the substrate to the main portion. The restricting portion is formed in a rod shape facing the end of the substrate in the short direction of the substrate and restricting movement of the end of the substrate in a direction retracting from the space. The restricting portion fixes the attached member to the main portion.

[0008] A lighting fixture according to one aspect of the present disclosure includes a light source unit and an elongated fixture body to which the light source unit is detachably attached. [Effects of the Invention]

[0009] The light source unit and lighting fixture of the present disclosure have the advantage of being able to improve the workability of assembly work. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a front view of the lighting fixture. [Figure 3] FIG. 3 is a side view of the lighting fixture. [Figure 4] FIG. 4 is a partially cutaway exploded perspective view of the lighting fixture. [Figure 5] FIG. 5 is an exploded perspective view of the lighting fixture. [Figure 6] FIG. 6 is a plan view of the lighting fixture. [Figure 7] FIG. 7 is a front view of the fixture body of the lighting fixture. [Figure 8] FIG. 8 is a plan view of a light source unit in the lighting fixture. [Figure 9] FIG. 9 is a cross-sectional view of the lighting fixture. [Figure 10] FIG. 10 is a side view of the lighting fixture of the same as above, with the end member omitted. [Figure 11] FIG. 11 is an explanatory diagram for explaining the assembly procedure of the light source unit. [Figure 12] FIG. 12 is a partially omitted bottom view of the light source unit with the cover removed. [Figure 13] FIG. 13 is a side view, with some parts omitted, showing the support member, the light source module, and the shoulder screw in the light source unit. [Figure 14] FIG. 14 is a cross-sectional view of the support member, the light source module, and the cover in the light source unit. [Figure 15] Fig. 15A is a side view of a main part of the light source unit according to Modification 1 of the same, Fig. 15B is a side view of a main part of the light source unit according to Modification 2 of the same, and Fig. 15C is a side view of a main part of the light source unit according to Modification 3 of the same. DETAILED DESCRIPTION OF THE INVENTION

[0011] Embodiments of the present disclosure will be described in detail with reference to the drawings. However, each diagram described in the following embodiments is a schematic diagram, and the ratios of the sizes and thicknesses of the components do not necessarily reflect the actual dimensional ratios. Note that the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0012] (1) Overview of the embodiments of the present disclosure The light source unit 2 according to the embodiment of the present disclosure includes a long light source module 20, a long support member 21 that supports the light source module 20, and one or more fixing members. The light source module 20 includes a long substrate 200 and a plurality of light-emitting elements (LEDs 201) arranged on the surface of the substrate 200. The support member 21 includes a main portion 210 and one or more protrusions (locking pieces 213). The main portion 210 is formed in the shape of a long plate and faces the back surface of the substrate 200. The protrusions (locking pieces 213) protrude from a surface of the main portion 210 that faces the back surface of the substrate 200, and form a space between the protrusions and the facing surface of the main portion 210 into which an end of the substrate 200 can be inserted. The fixing member is configured to fix a portion of the substrate 200 other than the end of the substrate 200 to the main portion 210.

[0013] Thus, in the light source unit 2 according to the embodiment of the present disclosure, the end of the substrate 200 is locked to the protruding portion (locking piece 213), and a portion of the substrate 200 other than the end is fixed to the main portion 210 with a fixing member, thereby attaching the substrate 200 to the support member 21. Therefore, the light source unit 2 according to the embodiment of the present disclosure can improve the workability of the assembly work compared to the conventional example.

[0014] (2) Detailed Description of the Embodiments (2-1) Lighting equipment As shown in FIGS. 1 to 6 , lighting fixture A1 according to an embodiment of the present disclosure includes a long fixture body 1, a light source unit 2 according to an embodiment of the present disclosure (hereinafter abbreviated as light source unit 2), and a mounting member 3 for detachably mounting the light source unit 2 to the fixture body 1. The lighting fixture A1 according to an embodiment of the present disclosure (hereinafter abbreviated as lighting fixture A1) is directly attached to, for example, the ceiling of an office room in an office building. In the following description, unless otherwise specified, the up-down, front-back, and left-right directions indicated by arrows in FIG. 1 are defined as the up-down, front-back, and left-right directions of the lighting fixture A1 and the light source unit 2, respectively.

[0015] (2-2) Device body The appliance body 1 has a bottom plate 10 formed in a long rectangular shape and a pair of side plates 11 rising upward from both ends (front and rear ends) of the bottom plate 10 in the longitudinal direction (left and right direction) (see FIG. 4). The bottom plate 10 and the pair of side plates 11 are integrally formed by bending a single metal plate. In other words, the pair of side plates 11 have the function of improving the strength of the bottom plate 10.

[0016] The bottom plate 10 has two first wire holes 12, two second wire holes 13, two bolt insertion holes 14, and two hook holes 18 (see FIGS. 4 and 6).

[0017] The two first wire holes 12 are circular holes provided at both ends (left and right ends) in the longitudinal direction of the bottom plate 10. A power cable 80 connected to an external power source (for example, a commercial power system) is inserted into one of the two first wire holes 12 (see FIG. 7 ). A bushing 120 made of an annular synthetic resin molded body is fitted into each first wire hole 12, and the bushing 120 protects the power cable 80 from the edge of the first wire hole 12 in the bottom plate 10.

[0018] The power cable 80 is connected to a power terminal block 15 attached to the underside of the bottom plate 10 (see FIG. 7). The power terminal block 15 is attached near the first electric wire hole 12 of the bottom plate 10. The power cable 80 is electrically connected to two electric wires 17 via the power terminal block 15.

[0019] The two electric wires 17 connected to one power terminal block 15, the two electric wires 17 connected to the other power terminal block 15, and the two electric wires 17 connected to the plug connector 16 are connected one by one by closed-end connectors 82 (see FIG. 7). Of the three electric wires included in the power cable 80, one electric wire 17 (the ground electrode electric wire) is electrically connected to the bottom plate 10 of the fixture body 1 by a crimp terminal.

[0020] The two second wire holes 13 are oval holes provided between the longitudinal center of the bottom plate 10 and each of the first wire holes 12 (see FIG. 7). A signal cable connected to an external signal transmission source is inserted into one of the two second wire holes 13. The signal cable inserted into the second wire hole 13 is connected to a signal terminal block 52 (described later) provided in the light source unit 2. However, a bushing portion 43 of a function block 4 (described later) is fitted into each second wire hole 13, and the bushing portion 43 protects the signal cable from the edge of the second wire hole 13 of the bottom plate 10 (see FIG. 7).

[0021] The two hook holes 18 are round holes provided closer to the center of the bottom plate 10 than the second wire hole 13 (see FIG. 7). The tips of two hanging members for suspending and temporarily fixing the light source unit 2 are inserted into and hooked onto the two hook holes 18.

[0022] (2-3) Mounting parts The fixture body 1 is provided with two mounting members 3. Each mounting member 3 has one mounting spring 30 (see FIGS. 4 and 5). The mounting spring 30 has a pair of spring pieces 300 and a connecting piece that connects the pair of spring pieces 300 together (see FIGS. 5 and 7). The pair of spring pieces 300 and the connecting piece are formed into a U-shape by bending a strip-shaped metal plate. The tip portion (lower end portion) of each spring piece 300 is bent into a V-shape, so that it is inclined inward toward the tip (lower end).

[0023] These two mounting springs 30 are fixed to the bottom plate 10 of the fixture body 1 by screws. That is, the connecting piece of each mounting spring 30 is screwed between the power terminal block 15 and the bolt insertion hole 14 on the bottom plate 10. Each of the pair of spring pieces 300 is deformable (flexible) along the short side direction (front-rear direction) of the fixture body 1.

[0024] (2-4) Functional Blocks The device main body 1 has two function blocks 4 (see FIGS. 4 and 5). Each function block 4 has a guide member 40, a restricting member 41, a holding member 42, and a bushing portion 43 (see FIG. 5). The function block 4 is made of a synthetic resin molded body in which the guide member 40, the restricting member 41, the holding member 42, and the bushing portion 43 are integrally formed. However, the guide member 40, the restricting member 41, the holding member 42, and the bushing portion 43 may each be formed separately, or at least two of these members may be integrally formed.

[0025] When the pair of spring pieces 300 of the mounting spring 30 are deformed (bent) inward, the limiting member 41 comes into contact with each spring piece 300, thereby limiting the amount of deformation (bent amount) of each spring piece 300. In other words, the limiting member 41 can prevent the spring pieces 300 of the mounting spring 30 from plastically deforming.

[0026] As will be described later, the guide member 40 is configured to guide the tip of the side wall portion 211 of the support member 21 to the outside of each spring piece 300 of the mounting spring 30 when the functional block 4 is attached to the instrument main body 1.

[0027] The holding member 42 is configured to form a space for wiring between the bottom plate 10 and the side plate 11 of the fixture body 1 and to hold the electric wires 17 arranged in the space. Thus, by the holding member 42 holding the electric wires 17, it is possible to prevent the occurrence of problems such as the coating of the electric wires 17 being damaged by the suspension bolt inserted into the bolt insertion hole 14 (see FIG. 7).

[0028] The bushing portion 43 is inserted into the second wire hole 13 , thereby protecting the sheath of the signal cable from the edge of the second wire hole 13 of the bottom plate 10 .

[0029] (2-5) Light source unit The light source unit 2 includes a light source module 20, a support member 21, a cover 22, a power supply unit 5, and a pair of end members 6 (see FIGS. 4 and 5).

[0030] (2-5-1) Light source module The light source module 20 has two substrates 200 and a plurality of light-emitting elements (LEDs 201) mounted on the surface (lower surface) of each substrate 200 (see FIG. 5). Each substrate 200 is formed in a long rectangular shape. Conductors for connecting the plurality of LEDs 201 are formed on the surface of each substrate 200. The conductors of the two substrates 200 are connected via connectors mounted on the longitudinal ends of each substrate 200.

[0031] Each of the LEDs 201 is a packaged white LED for illumination, but the light emitting element of the light source module 20 may be a light emitting element other than an LED, such as an organic electroluminescence element or a semiconductor laser element.

[0032] (2-5-2) Power supply unit The power supply unit 5 includes a power supply circuit 50 configured as a printed circuit and a power supply case 51 that houses the power supply circuit 50 (see FIGS. 4 and 9). The power supply case 51 is formed in a long, box-like shape with one surface (bottom) open. The power supply circuit 50 includes a rectifier circuit that rectifies AC voltage supplied from an external power source via an electric wire 54, a boost circuit that boosts and smooths the pulsating voltage rectified by the rectifier circuit, a step-down circuit that steps down the DC voltage output from the step-up circuit, and a control circuit that controls the step-down circuit. The control circuit controls the step-down circuit to make the current (load current) supplied to the light source module 20 constant by matching it to a target value. The control circuit also adjusts the target value of the load current in response to a signal (dimming signal) input from a signal transmission source via a signal cable and a signal terminal block 52, thereby dimming the light source module 20. The signal transmission source is, for example, a lighting controller installed on the wall of an office. A receptacle connector 55 connectable to the plug connector 16 of the appliance body 1 is attached to the tip of the electric wire 54 drawn out from the power supply case 51 (see FIG. 8).

[0033] (2-5-3) Support member The support member 21 has a main portion 210 formed in the shape of a long plate, and a pair of side walls 211 standing upward from a pair of side ends (front and rear ends) along the longitudinal direction (left-right direction) of the main portion 210 (see FIG. 5). The pair of side walls 211 are formed in the shape of a long rectangle.

[0034] The support member 21 also has a positioning piece 212, a locking piece 213, a pair of cover attachment pieces 214, a pair of hooks 31, and a pair of protrusions 215 (see FIGS. 9 and 10).

[0035] The positioning piece 212 is formed in a rectangular column shape protruding downward from the rear end of the underside of the main portion 210 (see FIG. 9). The locking piece 213 is formed in an L shape protruding downward from the front end of the underside of the main portion 210. The positioning piece 212 and the locking piece 213 are each formed over the entire length of the main portion 210 in the longitudinal direction so as to be parallel to each other along the longitudinal direction of the main portion 210. However, at least one of the positioning piece 212 and the locking piece 213 may be provided in plurality at intervals along the longitudinal direction of the main portion 210.

[0036] An end H1 (one end along the longitudinal direction of the substrate 200) of the substrate 200 of the light source module 20 is inserted into the space between the locking piece 213 and the main part 210, and the end H1 of the substrate 200 is locked by the locking piece 213 (see FIG. 10). The positioning piece 212 restricts the end of the substrate 200 from moving in a direction retracting from the space between the locking piece 213 and the main part 210. Furthermore, the substrate 200 is fixed to the main part 210 by fixing members (plurality of shoulder screws 25) (see FIGS. 5, 9 and 10).

[0037] The pair of cover attachment pieces 214 are each formed in an L-shape and protrude downward from each side end along the longitudinal direction of the main part 210 (see FIG. 9). A pair of attachment parts 222 of the cover 22 is hooked onto each cover attachment piece 214, as will be described later.

[0038] The pair of hooking portions 31 each protrude inward from approximately the center in the vertical direction on the inner surfaces of the pair of side wall portions 211 over the entire longitudinal length of each side wall portion 211 (see FIG. 9). However, the tip portion of each hooking portion 31 is bent downward. The pair of hooking portions 31 hook onto the tip portions of the respective spring pieces 300 of the two mounting springs 30 attached to the appliance main body 1. In other words, the pair of hooking portions 31, together with the mounting springs 30, constitute the mounting member 3.

[0039] The pair of protrusions 215 protrude inward from the lower end portions of the inner surfaces of the pair of side wall portions 211 over the entire longitudinal length of each side wall portion 211 (see FIG. 9). Note that the main portion 210, the pair of side wall portions 211, the positioning piece 212, the locking piece 213, the pair of cover mounting pieces 214, the pair of hook portions 31, and the pair of protrusions 215 are preferably formed integrally by extrusion molding a metal material such as an aluminum alloy.

[0040] (2-5-4) Cover The cover 22 has a front wall 220, a pair of side walls 221, and a pair of mounting portions 222 (see FIG. 5). The front wall 220 is formed in an elongated rectangular shape. Each of the pair of side walls 221 is formed in an elongated rectangular shape and protrudes upward from both longitudinal ends (front end and rear end) of the front wall 220. Each of the pair of mounting portions 222 is formed in an elongated U-shape and protrudes inward from the upper end of each side wall portion 211 over the entire longitudinal length of the side wall portion 211 (see FIG. 10). Here, the front wall 220, the pair of side wall portions 211, and the pair of mounting portions 222 are preferably formed integrally by extrusion molding of a translucent synthetic resin such as polycarbonate resin or acrylic resin. Note that the cover 22 is preferably formed in a milky white color by mixing a filler into the synthetic resin material in order to diffuse the light emitted from the light source module 20.

[0041] The cover 22 is attached to the support member 21 by hooking the pair of attachment portions 222 one by one onto the pair of cover attachment pieces 214 of the support member 21 (see FIG. 10). The cover 22 attached to the support member 21 covers the light source module 20 attached to the lower surface of the main part 210.

[0042] (2-5-5) End member The end member 6 has a cover end portion 60, an end cap portion 61, and a fastener 62 (see FIG. 5). The cover end portion 60 is configured to close each end (left end and right end) in the longitudinal direction (left-right direction) of the cover 22 (see FIG. 1). The end cap portion 61 is configured to close each end (left end and right end) in the longitudinal direction (left-right direction) of the support member 21 (see FIG. 1). The fastener 62 is configured to support the cover end portion 60 and the end cap portion 61 and be fixed to the main portion 210 of the support member 21 (see FIG. 8).

[0043] (2-5-6) Sealing material The light source unit 2 is provided with a sealing member 7 made of, for example, silicone resin (see FIGS. 5, 9, and 10). The sealing member 7 seals the gap that occurs between the cover end portion 60 of the end member 6 and the cover 22, preventing foreign matter (such as dust, dirt, and insects) from entering.

[0044] (2-6) Light source unit assembly process Next, the assembly process of the light source unit 2 will be described.

[0045] (2-6-1) Mounting process of the power supply unit and signal terminal block to the support member First, both longitudinal ends of the power supply case 51 are fastened to the main part 210 with fixing screws 56 at approximately the center of the upper surface of the main part 210 of the support member 21, thereby attaching the power supply unit 5 to the support member 21 (see FIGS. 8 and 9). At this time, the open side of the power supply case 51 is closed by the main part 210 (see FIG. 9). Also, the power supply case 51 has hook pieces 510 cut out and raised to protrude outward (see FIG. 9). The hook pieces 510 are hooked onto the hook parts 31 of the side wall parts 211, thereby preventing the power supply case 51 from lifting up from the main part 210 of the support member 21. Note that threaded portions 560 of the two fixing screws 56 that secure the power supply case 51 to the main part 210 protrude slightly from the surface (bottom) of the main part 210 (see FIG. 9).

[0046] The two signal terminal blocks 52 are attached to the upper surface of the main portion 210 of the support member 21 by two mounting fixtures 23 (see FIGS. 8 and 10). Each mounting fixture 23 has a fixing portion 230 to which the signal terminal block 52 is fixed and a screw-fastening piece 231 that is screwed to the main portion 210. A step is formed between the fixing portion 230 and the screw-fastening piece 231, and when the screw-fastening piece 231 is screwed to the main portion 210 by the fixing screw 26, a space is formed between the fixing portion 230 and the main portion 210 (see FIG. 10). A V-shaped protrusion 233 is provided at an end of the fixing portion 230, and the protrusion 233 is hooked onto a protrusion 215 provided on the side wall portion 211 of the support member 21, whereby the fixing portion 230 is supported by the side wall portion 211 (see FIG. 10). The two signal terminal blocks 52 and the power supply unit 5 are each connected by two signal lines 53 (see FIG. 8).

[0047] Fixing parts 230 are provided with attachment parts 232 to which hanging members are attached, respectively. The lower ends of the hanging members are attached to attachment parts 232. The hanging members are made of strings (cords) made of, for example, chemical fibers, and are used when attaching light source unit 2 to fixture body 1.

[0048] (2-6-2) Mounting process of the light source module to the support member Next, the light source module 20 is attached to the underside of the main part 210. First, the worker performing the attachment sets the support member 21 upside down (with the underside of the main part 210 facing upward). Then, the worker inserts the end H1 (one end along the longitudinal direction) of the substrate 200 of the light source module 20 into the space between the locking piece 213 and the surface (underside) of the main part 210 (see FIG. 11). At this time, to make it easier for the worker to insert the end H1 of the substrate 200, the portion of the locking piece 213 that faces the opposing surface (underside) of the main part 210 is formed to be inclined with respect to the opposing surface of the main part 210.

[0049] The worker inserts the end H1 of the substrate 200 all the way into the space between the main portion 210 and the locking piece 213, and then drops the opposite end H2 of the substrate 200 inside the positioning piece 212 (see FIG. 11). As a result, one end H1 of the substrate 200 is locked by the locking piece 213, and the other end H2 faces the positioning piece 212, so that movement of the substrate 200 in the front-to-rear direction (the short side direction of the substrate 200) and the up-to-down direction (the thickness direction of the substrate 200) relative to the main portion 210 is restricted.

[0050] Then, the worker inserts the shoulder screw 25 into a notch provided in the end H2 of the substrate 200 opposite to the end H1 engaged by the engagement piece 213. Furthermore, the worker tightens the shoulder screw 25 into a threaded hole provided in the main portion 210, thereby sandwiching the end H2 of the substrate 200 between the shoulder screw 25 and the main portion 210 (see FIGS. 12 and 13). However, the head 250 of the shoulder screw 25 is in contact with the tip of the positioning piece 212 of the main portion 210, and a small gap is left between the shoulder screw 25 and the end H2 of the substrate 200 of the light source module 20 (see FIG. 13). In other words, the shoulder screw 25 does not directly contact the substrate 200 of the light source module 20 to fix the substrate 200, but rather fixes the light source module 20 to the main portion 210 by restricting movement of the end H2 of the substrate 200 in the thickness direction (downward) with the head 250. The light source module 20 is electrically connected to the power supply unit 5 through a through hole provided in the main portion 210.

[0051] In the light source unit 2, the light source module 20 is attached to the support member 21 by inserting the end H1 of the substrate 200 between the locking piece 213 and the main part 210 from the short side direction of the substrate 200 and fixing the opposite end H2 of the substrate 200 to the main part 210 with a shoulder screw 25. Therefore, compared to the conventional example described in Patent Document 1, the work of moving the light source module 20 along the longitudinal direction of the light source module 20 is not required, and therefore the workability of the assembly work can be improved.

[0052] (2-6-3) Attaching the cover to the support member Next, the attachment portion 222 of the cover 22 is inserted from one longitudinal end of the cover 22 into the gap between the underside of the main portion 210 and the cover attachment piece 214, thereby attaching the cover 22 to the main portion 210 (see FIG. 10). Note that the cover 22 is movable relative to the main portion 210 along the longitudinal direction of the main portion 210, since the attachment portion 222 is simply hooked onto the cover attachment piece 214 of the main portion 210.

[0053] (2-6-4) End member installation process First, the seal member 7 is attached to the cover end portion 60. Then, the cover end portion 60 and the end cap portion 61 are joined together. Next, the fixing device 62 is attached to the end cap portion 61.

[0054] The end members 6 assembled as described above are attached one by one to both longitudinal ends of the support member 21 and the cover 22. Specifically, a part of the fastener 62 is inserted between the upper surface of the main portion 210 and the pair of protrusions 215. Then, a fixing plate is screwed to the main portion 210 of the support member 21.

[0055] Furthermore, the cover end portion 60 and the seal member 7 are inserted into the cover 22, and both longitudinal ends of the support member 21 are closed by the end cap portions 61. The seal member 7 inserted into the cover 22 closes the gap between the cover end portion 60 and the cover 22 by coming into close contact with the inner surfaces of the front wall 220 and the side wall portions 211 of the cover 22.

[0056] As described above, the end members 6 are attached to both ends of the support member 21 and the cover 22 in the longitudinal direction, respectively, and thus the assembly of the light source unit 2 is completed.

[0057] (2-7) Installation procedure for lighting fixtures Next, the procedure for installing lighting fixture A1 on the ceiling will be described. The worker performing the installation work inserts power cable 80, which has been pulled into the room from a hole in the ceiling, into first wire hole 12 in fixture body 1. The worker also inserts the signal cable, which has been pulled into the room from a hole in the ceiling, into second wire hole 13. The worker then inserts each of the two suspension bolts protruding downward from the ceiling into two bolt insertion holes 14 in fixture body 1, and tightens nuts on each suspension bolt to install fixture body 1 on the ceiling. The worker also connects power cable 80 to power terminal block 15.

[0058] Next, the worker hangs the light source unit 2 on the fixture body 1 by the two hanging members and temporarily fixes it by hooking one tip of the two hanging members attached to each mounting portion 232 of the two mounting fixtures 23 into the two hooking holes 18 of the fixture body 1. In this temporarily fixed state, the worker connects the receptacle connector 55 of the power supply unit 5 to the plug connector 16 of the fixture body 1. Furthermore, the worker connects the signal line of the signal cable inserted into the second wire hole 13 of the fixture body 1 to the signal terminal block 52.

[0059] Then, while supporting the light source unit 2 in the temporarily fixed state with both hands, the worker brings it close to the fixture body 1 and inserts the mounting spring 30 of the fixture body 1 between the pair of side wall portions 211 of the support member 21. At this time, the tip of the side wall portion 211 comes into contact with the guide piece 400 of the guide member 40, so that the mounting spring 30 is securely inserted between the pair of side wall portions 211. Therefore, it is possible to prevent the spring piece 300 of the mounting spring 30 from projecting outside the side wall portion 211, preventing problems such as the spring piece 300 being subjected to excessive force and plastic deformation.

[0060] Furthermore, since the amount of deformation (amount of deflection) of the spring piece 300 is limited by the limiting member 41, it is possible to prevent problems such as the application of excessive force to the spring piece 300 and plastic deformation.

[0061] The mounting spring 30 inserted between the pair of side wall portions 211 has the tip portions of the pair of spring pieces 300 hooked onto the hook portions 31 on the inner surfaces of the side wall portions 211 (see FIG. 9). In other words, the light source unit 2 is mounted to the fixture body 1 by the mounting member 3 consisting of the two mounting springs 30 and the hook portions 31 (see FIGS. 1 and 2). If the worker pulls the light source unit 2 downward, the tip portions of the mounting springs 30 will be released from the hook portions 31, and the light source unit 2 can be removed from the fixture body 1.

[0062] (3) Features of the embodiment One feature of the light source unit 2 is that the support member 21 has a protrusion (locking piece 213) that forms a space between the opposing surface (lower surface) of the main part 210 and the protrusion (locking piece 213) into which the end H1 of the substrate 200 can be inserted, and another end H2 of the substrate 200 is fixed to the main part 210 by a fixing member.

[0063] According to the above features, the work of attaching the substrate 200 (light source module 20) to the support member 21 can be simplified compared to when the substrate is attached to the support member by hooking both end portions of the substrate. As a result, the light source unit 2 can improve the workability of the assembly work compared to the conventional example. Note that, although the shoulder screw 25 is used as the fixing member in the embodiment, a screw other than a shoulder screw may be used, or a member (component) other than a screw, such as a caulking rivet or double-sided tape, may be used as the fixing member.

[0064] Here, the protrusion (the locking piece 213) protrudes from one end of the main portion 210 in the short-side direction along the longitudinal direction of the main portion 210 (see FIG. 12). One end H1 of the board 200 in the short-side direction is inserted into the space between the locking piece 213 and the main portion 210 (see FIGS. 11 to 13). Therefore, when the end H1 of the board 200 is locked to the locking piece 213 of the support member 21, the light source unit 2 moves the board 200 along the short-side direction of the board 200 relative to the support member 21. Therefore, the light source unit 2 can shorten the moving distance of the board 200 relative to the support member 21 compared to when the board 200 is moved along the longitudinal direction of the board 200 relative to the support member 21, thereby further improving the workability of the assembly work. Note that the locking piece 213 does not have to be provided continuously over the entire length of the main portion 210 in the long-side direction. For example, a plurality of locking pieces may be provided at intervals along the longitudinal direction of the main portion 210.

[0065] The light source unit 2 also includes a restricting portion that faces the other end H2 of the substrate 200 in the short-side direction along the short-side direction of the substrate 200 and restricts the end H1 of the substrate 200 from moving in a direction retracting from the space. Specifically, the restricting portion includes a wall-shaped positioning piece 212 that protrudes from the lower surface (opposing surface) of the main portion 210 of the support member 21. The restricting portion also includes threaded portions 560 of two fixing screws 56 that fix the power supply case 51 to the main portion 210, and threaded portions 260 of two fixing screws 26 that fix the two mounting fixtures 23 to the main portion 210. In other words, the threaded portions 560 of the fixing screws 56 and the threaded portions 260 of the fixing screws 26 both protrude from the lower surface (opposing surface) of the main portion 210 of the support member 21 (see FIGS. 9, 12, and 14).

[0066] Furthermore, the substrate 200 has a plurality of recesses 202 recessed along the short-side direction of the substrate 200 (see FIG. 12). These recesses 202 are provided at one end H2 of the substrate 200. The restricting portions (the threaded portions 560 of the fixing screws 56 and the threaded portions 260 of the fixing screws 26) are each disposed in one of the recesses 202 when viewed in the thickness direction (vertical direction) of the substrate 200 (see FIG. 12).

[0067] Thus, these restricting portions (including the positioning pieces 212) can restrict movement of the substrate 200 relative to the main portion 210 in a plane parallel to the opposing surface of the main portion 210. In particular, the threaded portion 560 of the fixing screw 56 and the threaded portion 260 of the fixing screw 26 are disposed in the recessed portion 202 of the substrate 200, so that movement of the substrate 200 can be restricted not only in the short direction of the main portion 210 but also in the long direction of the main portion 210.

[0068] As described above, the light source unit 2 can position the board 200 relative to the main part 210 and restrict movement of the board 200 by using the restricting portions (the positioning piece 212, the threaded portion 560 of the fixing screw 56, and the threaded portion 260 of the fixing screw 26) of the main part 210. As a result, the light source unit 2 can improve the workability when fixing the board 200 to the main part 210 with the fixing member (the shoulder screw 25).

[0069] In the light source unit 2, a part of the head 250 of the shoulder screw 25, which is a fixing member, overlaps with the tip of the positioning piece 212 when viewed in the thickness direction (vertical direction) of the substrate 200 (see FIGS. 12 and 13). In other words, the shoulder screw 25 can only be tightened up to a position where the head 250 of the shoulder screw 25 comes into contact with the tip of the positioning piece 212 of the main part 210.

[0070] Thus, the light source unit 2 can prevent the shoulder screws 25 from being overtightened by bringing the heads 250 of the shoulder screws 25 into contact with the tips of the positioning pieces 212. If the heads 250 of the shoulder screws 25 do not come into contact with the tips of the positioning pieces 212, excessive tightening of the shoulder screws 25 may cause warping and distortion in the substrate 200. Note that it is preferable that the heads 250 do not protrude outside the positioning pieces 212 so as not to come into contact with the mounting portions 222 of the cover 22 (see FIG. 14).

[0071] Here, because the cylindrical portion 252 of the stepped screw 25 is thicker than the screw hole of the main portion 210 into which the threaded portion 251 of the stepped screw 25 is fastened, the fastening of the stepped screw 25 is limited at the position where the cylindrical portion 252 abuts on the opposing surface of the main portion 210 (see FIG. 13). Therefore, if the height of the cylindrical portion 252 of the stepped screw 25 is higher than the height from the lower surface of the main portion 210 to the tip of the positioning piece 212, the head 250 of the stepped screw 25 will not come into contact with the tip of the positioning piece 212, and the stepped screw 25 can be prevented from being fastened excessively.

[0072] (4) Modifications of the embodiment Several modified examples of the light source unit 2 according to the embodiment will be described. The three modified examples 1 to 3 described below are characterized by the configuration of the protrusion (locking piece 213) provided on the main part 210 of the support member 21, and the other configurations are common to the light source unit 2 according to the embodiment.

[0073] The light source unit 2 of the first modification is characterized in that the portion of the locking piece 213 facing the opposing surface of the main part 210 is formed in an L shape so as to be parallel to the opposing surface of the main part 210 (see FIG. 15A).

[0074] The light source unit 2 of the second modification is characterized in that the locking piece 213 is formed in a V shape (see FIG. 15B).

[0075] The light source unit 2 of the third modification is characterized in that the locking piece 213 is formed in an inverted J shape (see FIG. 15C).

[0076] In both the light source unit 2 according to the embodiment and the light source unit 2 according to the modified examples 1-3, the locking piece 213 may be formed separately from the main part 210, or may be formed by processing a part of the main part 210 (such as by cutting and raising).

[0077] In any of the light source units 2 of Modifications 1 to 3, the workability of the assembly work can be improved, similarly to the light source unit 2 according to the embodiment.

[0078] (5) Summary A light source unit (2) according to a first aspect of the present disclosure includes a long light source module (20), a long support member (21) that supports the light source module (20), and one or more fixing members (shoulder screws 25). The light source module (20) includes a long substrate (200) and a plurality of light-emitting elements (LEDs 201) arranged on the surface of the substrate (200). The support member (21) has a main portion (210) formed in the shape of a long plate and facing the back surface of the substrate (200). The support member (21) has one or more protrusions (locking pieces 213) that protrude from the surface of the main portion (210) that faces the back surface of the substrate (200) and form a space between the surface of the main portion (210) and the protrusions to form a space into which an end portion (H1) of the substrate (200) can be inserted. The fixing member is configured to fix a part (edge ​​H2) of the substrate (200) other than the edge (H1) of the substrate (200) to the main part (210).

[0079] In the light source unit (2) according to the first aspect, the substrate (200) can be attached to the support member (21) by fixing a part of the substrate (200) other than the end portion to the main portion (210) with a fixing member while the end portion (H1) of the substrate (200) is engaged with the protrusion portion. As a result, the light source unit (2) according to the first aspect can improve the workability of the assembly work.

[0080] A light source unit (2) according to a second aspect of the present disclosure can be realized by combining it with the first aspect. In the light source unit (2) according to the second aspect, the protrusion preferably protrudes from one end in the lateral direction of the main part (210) along the longitudinal direction of the main part (210). One end (H1) in the lateral direction of the substrate (200) is preferably inserted into the space.

[0081] The light source unit (2) according to the second aspect is attached to the support member (21) by inserting the end (H1) of the substrate (200) between the protruding portion and the main portion (210) from the short side direction of the substrate (200) and fixing the opposite end (H2) of the substrate (200) to the main portion (210) with a fixing member. Therefore, the light source unit (2) according to the second aspect does not require the work of moving the light source module (20) along the longitudinal direction of the light source module (20), and therefore the workability of the assembly work can be further improved.

[0082] A light source unit (2) according to a third aspect of the present disclosure can be realized by combining it with the second aspect. The light source unit (2) according to the third aspect preferably includes a restricting portion (positioning piece 212, fixing screw 26, fixing screw 56). The restricting portion preferably faces the other end portion (H2) of the substrate (200) in the short-side direction along the short-side direction of the substrate (200). The restricting portion preferably restricts the end portion (H2) of the substrate (200) from moving in a direction retracting from the space.

[0083] The light source unit (2) according to the third aspect can position the board (200) relative to the main part (210) and restrict movement of the board (200) by the restricting part. As a result, the light source unit (2) according to the third aspect can improve the workability when fixing the board (200) to the main part (210) with the fixing member.

[0084] A light source unit (2) according to a fourth aspect of the present disclosure can be realized by combining it with the third aspect. In the light source unit (2) according to the fourth aspect, it is preferable that the restricting portion is configured to protrude from the opposing surface of the main portion (210).

[0085] In the light source unit (2) according to the fourth aspect, the restricting portion can be supported by the main portion (210), thereby reducing the number of parts.

[0086] A light source unit (2) according to a fifth aspect of the present disclosure can be realized by combining it with the fourth aspect. In the light source unit (2) according to the fifth aspect, it is preferable that the restricting portion (positioning piece 212) is formed in a wall shape that protrudes along the longitudinal direction of the main portion (210).

[0087] In the light source unit (2) according to the fifth aspect, the restricting portion is formed in a wall shape, which makes it easier to restrict the movement of the substrate (200) over a wide range.

[0088] A light source unit (2) according to a sixth aspect of the present disclosure can be realized by combining it with the fourth aspect. In the light source unit (2) according to the sixth aspect, it is preferable that the restricting portions (fixing screws 26, 56) are formed in a rod shape.

[0089] In the light source unit (2) according to the sixth aspect, the restricting portion is formed in a rod shape, so that the space occupied by the restricting portion in the main portion (210) can be reduced.

[0090] A light source unit (2) according to a seventh aspect of the present disclosure can be realized by combining it with the sixth aspect. In the light source unit (2) according to the seventh aspect, the substrate (200) preferably has a recess (202) recessed along the short direction of the substrate (200). The restricting portion is preferably disposed within the recess (202) when viewed in the thickness direction of the substrate (200).

[0091] In the light source unit (2) according to the seventh aspect, the rod-shaped restricting portion is surrounded by the recess (202) of the substrate (200), so that movement of the substrate (200) in both the short and long directions can be restricted.

[0092] A light source unit (2) according to an eighth aspect of the present disclosure can be realized by combining it with any one of the third to seventh aspects. In the light source unit (2) according to the eighth aspect, the fixing member is preferably a shoulder screw (25). It is preferable that a portion of the head (250) of the fixing member overlaps with the tip of the restricting portion when viewed in the thickness direction of the substrate (200).

[0093] The light source unit (2) according to the eighth aspect can prevent the shoulder screw (25) from being overtightened.

[0094] A light source unit (2) according to a ninth aspect of the present disclosure can be realized by combining it with any one of the third to eighth aspects. In the light source unit (2) according to the ninth aspect, the fixing member is preferably a shoulder screw (25). The height of the cylindrical portion (252) of the fixing member is preferably greater than the height from the opposing surface of the main portion (210) to the tip of the restricting portion.

[0095] The light source unit (2) according to the ninth aspect can prevent the shoulder screw (25) from being overtightened due to the cylindrical portion (252) coming into contact with the main portion (210).

[0096] A lighting fixture (A1) according to a tenth aspect of the present disclosure includes a light source unit (2) according to any one of the first to ninth aspects and an elongated fixture body (1) to which the light source unit (2) is detachably attached.

[0097] The lighting fixture (A1) according to the tenth aspect can improve the workability of the assembly work. [Explanation of symbols]

[0098] A1 Lighting fixture 1. Device body 2 Light source unit 20 Light Source Module 21 Support member 25 shoulder screw 26 Fixing screw (regulating part) 56 Fixing screw (regulating part) 200 boards 201 LED (light-emitting element) 202 recess 210 Main Section 212 Positioning piece (regulating part) 213 Locking piece (protrusion) 250 shoulder screw head 252 Cylindrical part of shoulder screw H1 Board edge H2 Board edge

Claims

1. A long light source module; a long support member that supports the light source module; one or more fixation members; a mounting member to be mounted on the support member; The regulatory department, Equipped with The light source module includes: A long board, a plurality of light-emitting elements disposed on a surface of the substrate; and The support member is a main portion formed in a long plate shape and facing the rear surface of the substrate; one or more protrusions protruding from an opposing surface of the main portion opposing the rear surface of the substrate and forming a space between the opposing surface of the main portion and the opposing surface of the main portion into which an end of the substrate can be inserted; and the fixing member is configured to fix a part of the substrate other than an end portion of the substrate to the main portion, the restricting portion is formed in a rod shape so as to face an end portion of the substrate in the short-side direction along the short-side direction of the substrate and restrict the end portion of the substrate from moving in a direction retracting from the space, The restricting portion fixes the attached member to the main portion. Light source unit.

2. the protruding portion protrudes from one end of the main portion in a short side direction along a longitudinal direction of the main portion, One end of the substrate in the short side direction is inserted into the space. The light source unit according to claim 1 .

3. The restricting portion is configured to protrude from the opposing surface of the main portion.

3. The light source unit according to claim 1.

4. the substrate has a recess that is recessed along a short-side direction of the substrate, the restricting portion is disposed within the recess when viewed in the thickness direction of the substrate. The light source unit according to any one of claims 1 to 3.

5. Further comprising a power supply unit, The power supply unit includes: a power supply circuit that supplies current to the light source module; a power supply case that houses the power supply circuit; and The mounting member includes the power supply case. The light source unit according to any one of claims 1 to 4.

6. A light source unit according to any one of claims 1 to 5, a long fixture body to which the light source unit is detachably attached; Equipped with Lighting fixtures.

Images