Light source unit and luminaire

Abstract

To improve appearance.SOLUTION: The light source unit includes a long light source module, a long support member supporting the light source module, an end member 6 attached to an end part in the longitudinal direction of the support member, an attachment tool 62 for attaching the end member 6 to the end part in the longitudinal direction of the support member, and a long cover having translucency and covering the light source module. The end member 6 has a cover end part 60 attached to an end part in the longitudinal direction of the cover, and an end cap part 61 attached to an end part in the longitudinal direction of the support member. The cover end portion 60 and the end cap portion 61 are integrally connected to each other. The attachment tool 62 includes a fixing plate 620, a support plate 622, and a coupling plate 621 that couples the fixing plate 620 and the support plate 622. The fixing plate 620, the support plate 622, and the coupling plate 621 are integrally formed by processing a metal plate.SELECTED DRAWING: Figure 13

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 having a translucent cover that covers a light source module, and a lighting fixture having the light source unit and a fixture body. [Background technology]

[0002] As a conventional example, the lighting device (light source unit and lighting fixture) described in Patent Document 1 is exemplified. The lighting device described in Patent Document 1 comprises an elongated light source unit having a light-emitting element that serves as a light source, and an elongated lighting fixture having a fixture body to which the light source unit is attached. The lighting fixture has a fixture body and a pair of end plate portions. The fixture body is formed into a concave shape by a bottom portion and two side portions facing each other. The pair of end plate portions are attached to the fixture body so as to close opening portions at both ends in the longitudinal direction of the fixture body.

[0003] The light source unit has a light emitting module, a frame that supports the light emitting module, a cover that is attached to the frame and covers the light emitting module, and a pair of end caps that close openings at both ends in the longitudinal direction of the cover. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-24802 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, in the lighting device (light source unit and lighting fixture) described in Patent Document 1, the design surfaces at both ends in the longitudinal direction are formed by two members: an end plate attached to the fixture body, and an end cap attached to the cover. Therefore, due to the difference in thermal expansion coefficient between the synthetic resin material forming the cover and the metal forming the fixture body, the relative positions of the end cap and the end plate may become misaligned, which could detract from the appearance of the light source unit and lighting device (lighting fixture).

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

[0007] A light source unit according to one aspect of the present disclosure is detachably attached to a long fixture body. The light source unit includes a long light source module, a long support member supporting the light source module, an end member, a fixture for attaching the end member to a longitudinal end of the support member, and a long, translucent cover covering the light source module. The end member includes a cover end portion attached to a longitudinal end of the cover and an end cap portion attached to a longitudinal end of the support member. The fixture includes a fixing plate fixed to the end, a support plate supporting the end member, and a connecting plate connecting the fixing plate and the support plate. The fixing plate, the support plate, and the connecting plate are integrally formed by processing a metal plate.

[0008] A lighting fixture according to one aspect of the present disclosure includes the 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 effect of improving the appearance. [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 an exploded perspective view of the lighting fixture of the same embodiment, with a portion of the fixture body omitted. [Figure 9] FIG. 9 is a front view of the lighting fixture of the same embodiment, with a portion of the fixture body omitted. [Figure 10] FIG. 10 is a plan view of a light source unit in the lighting fixture. [Figure 11] FIG. 11 is a cross-sectional view of the lighting fixture. [Figure 12] FIG. 12 is a perspective view of an end member in the lighting fixture. [Figure 13] FIG. 13 is an exploded perspective view of the end member of the lighting fixture. [Figure 14] FIG. 14 is an exploded perspective view of the end member of the lighting fixture. [Figure 15] FIG. 15 is a side view of the lighting fixture of the same as above, with the end member omitted. [Figure 16] FIG. 16 is a cross-sectional view of the lighting fixture of the same embodiment, with a portion thereof omitted. [Figure 17] FIG. 17 is a front view of the lighting fixture of the same with a portion thereof omitted. [Figure 18] FIG. 18 is an exploded perspective view of a modification of the lighting fixture of the above, with a portion of the fixture body omitted. [Figure 19]FIG. 19 is a front view of a modification of the lighting fixture of the same embodiment, with a portion of the fixture body omitted. 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 is detachably attached to the long fixture body 1. Note that "long" in the present disclosure means that the length dimension in the longitudinal direction is several times to several tens of times the length dimension in the lateral direction.

[0013] The light source unit 2 according to an embodiment of the present disclosure includes a long light source module 20, a long support member 21 that supports the light source module 20, an end member 6 that is attached to the longitudinal end of the support member 21, and a long cover 22 that is translucent and covers the light source module 20.

[0014] The light source module 20 has a long substrate 200 and a plurality of 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, and a pair of side wall portions 211 standing from a pair of side ends along the longitudinal direction of the main portion 210 toward the back surface of the substrate 200. The cover 22 is formed in a semi-cylindrical shape with both longitudinal ends open. The end member 6 has a cover end portion 60 that closes the longitudinal opening of the cover 22, and end cap portions 61 that close the longitudinal ends of the main portion 210 and the pair of side wall portions 211. The cover end portion 60 and the end cap portions 61 are integrally joined.

[0015] Therefore, in the light source unit 2 according to the embodiment of the present disclosure, the cover end portion 60 and the end cap portion 61 are integrally joined, and therefore defects such as misalignment and rattle between the cover end portion 60 and the end cap portion 61 are unlikely to occur. As a result, the light source unit 2 according to the embodiment of the present disclosure can achieve an improved appearance compared to conventional examples such as the lighting device described in Patent Document 1.

[0016] (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.

[0017] (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.

[0018] 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).

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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).

[0023] The two bolt insertion holes 14 are oval holes provided one each between the power terminal block 15 and the second electric wire hole 13 of the bottom plate 10 (see FIG. 7). A suspension bolt protruding from the ceiling is inserted into each of the two bolt insertion holes 14. Then, nuts are tightened onto the suspension bolts inserted into the bolt insertion holes 14, thereby fixing the fixture body 1 to the ceiling.

[0024] The two hanging 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 ends of two strings for temporarily hanging the light source unit 2 are inserted into and hooked onto these two hanging holes 18.

[0025] (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 301 that connects the pair of spring pieces 300 together (see FIG. 8). The pair of spring pieces 300 and the connecting piece 301 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).

[0026] These two mounting springs 30 are fixed to the bottom plate 10 of the fixture body 1 by screws. That is, the connecting piece 301 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.

[0027] (2-4) Functional Blocks The device main body 1 has two function blocks 4 (see FIG. 4). Each function block 4 has a guide member 40, a restricting member 41, a holding member 42, and a bushing portion 43 (see FIG. 8). 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.

[0028] The limiting member 41 is formed in the shape of a rectangular flat plate (see FIG. 8). One limiting member 41 is disposed on the inner side of each pair of spring pieces 300 of the mounting spring 30. When each spring piece 300 is deformed (bent) inward, the spring piece 300 comes into contact with the limiting member 41, 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 undergoing plastic deformation.

[0029] The guide member 40 has four guide pieces 400 (see FIG. 8). The four guide pieces 400 are arranged one on each end of a pair of restricting members 41. That is, the restricting member 41 is arranged between two guide pieces 400 aligned in the longitudinal direction (left-right direction) of the device body 1.

[0030] Each guide piece 400 is formed in a rectangular column shape with a triangular tip (lower end). Each guide piece 400 is formed to a length such that, when the function block 4 is attached to the device body 1, the tip of each guide piece 400 is located further ahead (below) than the tip of the spring piece 300 of the mounting spring 30. However, the four guide pieces 400 may be formed in a U-shape by connecting the tips (lower ends) of two guide pieces 400 that are aligned along the short side direction (front-rear direction) of the device body 1.

[0031] The holding member 42 has a pair of first holding pieces 421, second holding pieces 422, and third holding pieces 423 (see FIGS. 7 to 9). The pair of first holding pieces 421 are formed in the shape of long plates with one longitudinal end curved. Furthermore, the pair of first holding pieces 421 are configured to surround the periphery of the bolt insertion hole 14 when viewed from above and below when the function block 4 is attached to the fixture body 1. The pair of first holding pieces 421 are configured to form a space for wiring between themselves and the side plate 11 of the fixture body 1 and to hold the electric wire 17 arranged in this space. Thus, by the pair of first holding pieces 421 holding the electric wire 17, it is possible to prevent problems such as the sheath of the electric wire 17 being damaged by a hanging bolt inserted into the bolt insertion hole 14 (see FIGS. 7 and 9).

[0032] The second holding piece 422 is formed in a thin plate shape so as to straddle the tips (lower ends) of the pair of limiting members 41 (see FIGS. 7 to 9). The second holding piece 422 forms a space for wiring between itself and the bottom plate 10 of the fixture body 1, and is configured to hold the electric wires 17 arranged in the space (see FIGS. 7 and 9).

[0033] The third holding piece 423 is formed in a generally L-shape (see FIG. 8). The third holding piece 423 is disposed on the opposite side of the restricting member 41 from the first holding piece 421 (the side adjacent to the power terminal block 15) (see FIG. 7). The third holding piece 423 is positioned below the electric wire 17 connected to the power terminal block 15 and configured to hold the electric wire 17 (see FIGS. 7 and 9).

[0034] The bushing 43 has a main body 430 formed in an oval cylindrical shape, a flange 431 protruding from the lower end of the main body 430 to the outside of the main body 430, and a tongue 432 protruding from the tip of the flange 431 (see FIG. 8). A circular screw insertion hole 433 passes through the tongue 432. The main body 430 is inserted into the second electric wire hole 13 when the function block 4 is attached to the device body 1 (see FIG. 7). That is, the bushing 43 can protect the sheath of the signal cable from the edge of the second electric wire hole 13 of the bottom plate 10 by the main body 430 inserted into the second electric wire hole 13.

[0035] The function block 4 has a plurality of claws 44 (see FIG. 8). One claw 44 is provided at the tip of the flange portion 431. The remaining two claws 44 are provided at the ends of the guide member 40. A screw hole 100 is provided in the bottom plate 10 of the fixture body 1 near the second electric wire hole 13. In addition, a C-shaped hook groove 101 is provided in the bottom plate 10 between the mounting spring 30 and the power terminal block 15.

[0036] The functional block 4 is attached to the fixture body 1 by hooking the claw 44 provided at the tip of the flange portion 431 onto the edge of the second wire hole 13, hooking the two claws 44 provided at the end of the guide member 40 onto the edges of both ends of the hooking groove 101, and screwing the screw inserted into the screw insertion hole 433 of the tongue piece 432 into the screw hole 100.

[0037] (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).

[0038] (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.

[0039] 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.

[0040] (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 11). 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. 10).

[0041] (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.

[0042] 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 FIG. 11).

[0043] The positioning piece 212 is formed in a rectangular column shape that protrudes downward from the rear end of the underside of the main portion 210 (see FIG. 11). The locking piece 213 is formed in an L shape that protrudes 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. The board 200 of the light source module 20 is inserted into the gap between the locking piece 213 and the main portion 210, and the board 200 is locked by the locking piece 213 (see FIG. 11). The positioning piece 212 positions the board 200 in the front-rear direction of the main portion 210. The board 200 is fastened to the main portion 210 with a plurality of screws.

[0044] 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. 11). A pair of attachment parts 222 of the cover 22 is hooked onto each cover attachment piece 214, as will be described later.

[0045] 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. 11). 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.

[0046] 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. 11). 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.

[0047] (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. 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 light emitted from the light source module 20.

[0048] 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. 11). The cover 22 attached to the support member 21 covers the light source module 20 attached to the lower surface of the main portion 210.

[0049] (2-5-5) End member The end member 6 has a cover end portion 60, an end cap portion 61, and a mounting fixture 62 (see FIGS. 12 to 14). The cover end portion 60 has a cylindrical portion 600, a wall portion 601, a protruding wall 602, a base 603, a pair of connecting portions 604, and a pair of pressing pieces 605.

[0050] The cylindrical portion 600 is formed in a rectangular cylindrical shape. The wall portion 601 is formed in a rectangular flat plate shape and is connected to one axial end of the cylindrical portion 600 to close the axial end of the cylindrical portion 600. A triangular prism-shaped mating protrusion 606 with its axial direction aligned in the front-to-rear direction is provided on the upper surface of the wall portion 601 (see FIG. 13).

[0051] The protruding wall 602 is formed in a rectangular flat plate shape and protrudes upward from a position on the upper surface of the tubular portion 600 near the wall portion 601. The base 603 is formed in a rectangular flat plate shape and is disposed from the upper end of the protruding wall 602 in parallel with the upper surface of the tubular portion 600.

[0052] The pair of connecting portions 604 are each formed in an inverted L-shape and protrude upward from both front and rear ends of the upper surface of the base 603 that are farther from the wall portion 601. The pair of pressing pieces 605 are each formed in a rectangular flat plate shape and protrude along the axial direction of the tube portion 600 from both front and rear ends of the upper portion of the open end of the tube portion 600 (the end opposite the wall portion 601). The tube portion 600, the wall portion 601, the protruding wall 602, the base 603, the pair of connecting portions 604, and the pair of pressing pieces 605 are integrally formed as a translucent synthetic resin molding such as acrylic resin or polycarbonate resin. However, in order to diffuse light emitted from the light source module 20, like the cover 22, the cover end portion 60 is preferably formed in a milky white color by mixing a filler into the synthetic resin material.

[0053] The end cap portion 61 has a main body 610 having a hole 611 for passing wires through, and a lid body 63 that is detachably attached to the main body 610 and closes the hole 611 when attached to the main body 610. The main body 610 and the lid body 63 are each made of a synthetic resin molded body that does not transmit light.

[0054] Main body 610 is formed in the shape of a U-shaped flat plate. A triangular prism-shaped recess (fitting recess 618) is formed on the underside of main body 610 (see FIG. 14). The front surface of main body 610 is flat, and the back surface of main body 610 is provided with a pair of vertical pieces 612, a horizontal piece 613, a pair of support pieces 614, and a pair of protrusions 615.

[0055] The pair of vertical pieces 612 are formed in a roughly trapezoidal shape, and protrude from both the front and rear of the hole 611 on the back surface of the main body 610 in the thickness direction of the main body 610. The horizontal piece 613 is formed in a rectangular flat plate, and protrudes from the bottom of the hole 611 on the back surface of the main body 610 in the thickness direction of the main body 610 so as to connect the lower ends of the pair of vertical pieces 612.

[0056] A coupling groove 616 is provided at each end of the horizontal piece 613 in the front-rear direction. These coupling grooves 616 are open at the tip end of the horizontal piece 613 and are formed in a rectangular shape with the thickness direction of the main body 610 as the longitudinal direction. Furthermore, a protrusion 617 is provided on each of the upper surfaces of the horizontal pieces 613 near the coupling groove 616. These protrusions 617 are formed in the shape of a rectangular pillar with the thickness direction of the main body 610 as the axial direction.

[0057] The pair of support pieces 614 are formed in a square pyramid shape and protrude from the side surfaces of the pair of vertical pieces 612 along the main body 610 in a direction approaching the hole 611. Here, a space is formed between the pair of support pieces 614 and the main body 610, into which the flange portion 631 of the lid body 63 is slidably inserted.

[0058] The pair of protrusions 615 are formed in a rectangular column shape and protrude outward from the outer surfaces of the pair of vertical pieces 612, approximately at the center of the vertical pieces 612 in the vertical direction, along the thickness direction (front-to-back direction) of the vertical pieces 612.

[0059] The lid body 63 has a main body 630 formed in the shape of a rectangular box, flange portions 631 protruding from the underside and both front and rear side surfaces of the main body 630, a pair of support portions 632, and claw portions 633 (see Figures 13 and 14).

[0060] The surface of the main body 630 is flat. The portions of the flange 631 that protrude from the front and rear side surfaces of the main body 630 are formed so as to taper in thickness downward.

[0061] The pair of support portions 632 are each formed in a trapezoidal shape, and protrude in the left-right direction from both front and rear ends below the back surface of the main body portion 630. The claw portion 633 is provided in the center of the underside of the main body portion 630 in the front-rear direction, and protrudes toward the front surface of the main body portion 630 beyond the flange portion 631.

[0062] The mounting fixture 62 has a fixing plate 620, a connecting plate 621, and a support plate 622. The fixing plate 620 is formed in the shape of a rectangular flat plate. The support plate 622 is formed in the shape of a rectangular flat plate that is smaller than the fixing plate 620. The connecting plate 621 is formed in a Z shape, and connects an end of the fixing plate 620 to an end of the support plate 622. The fixing plate 620, connecting plate 621, and support plate 622 are integrally formed by bending a single metal plate.

[0063] The fixing plate 620 has two circular screw insertion holes 623. The mounting fixture 62 is fixed to the support member 21 by fastening screws inserted into the two screw insertion holes 623 of the fixing plate 620 to the main portion 210 of the support member 21.

[0064] Two parallel mating grooves 624 are formed in the fixed plate 620, the connecting plate 621 and the support plate 622 (see FIGS. 12 to 14).

[0065] (2-5-6) Sealing material The light source unit 2 includes a sealing member 7. The sealing member 7 has the function of preventing foreign matter (dust, insects, etc.) from entering through a gap formed between the cover end portion 60 of the end member 6 and the cover 22.

[0066] The seal member 7 has a main body 70, a seal piece 71, and a pair of ribs 72 (see Figures 13 and 14). The seal member 7 is made of, for example, silicone resin. The main body 70 is formed in a roughly rectangular cylindrical shape. However, the upper wall of the main body 70 is formed thinner than the lower wall and the front and rear walls. The seal piece 71 is formed in a U-shape and protrudes outward from near the tip of the lower wall and the front and rear walls of the main body 70. The pair of ribs 72 are each formed in a rectangular flat plate shape and protrude upward from both the front and rear ends of the upper wall of the main body 70 (see Figure 13).

[0067] (2-6) Light source unit assembly process Next, the assembly process of the light source unit 2 will be described.

[0068] (2-6-1) Mounting process of the power supply unit and signal terminal block to the support member First, the power supply case 51 is screwed to the main part 210 of the support member 21 at approximately the center of the upper surface of the main part 210, thereby attaching the power supply unit 5 to the support member 21 (see FIG. 10). At this time, the open surface of the power supply case 51 is closed by the main part 210 (see FIG. 11). Also, the power supply case 51 has hook pieces 510 cut out and raised to protrude outward (see FIG. 11). 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.

[0069] 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 bases 23 (see FIGS. 10 and 15). Each mounting base 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, a space is formed between the fixing portion 230 and the main portion 210 (see FIG. 15). 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. 15). The two signal terminal blocks 52 and the power supply unit 5 are each connected by two signal lines 53 (see FIG. 10).

[0070] The fixing parts 230 are provided with string attachment parts 232 to which a string for temporary hanging is attached. The lower end of the string for temporary hanging is attached to the string attachment part 232. The string for temporary hanging is used when attaching the light source unit 2 to the fixture body 1.

[0071] (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. The light source module 20 is attached to the main part 210 by inserting the board 200 into the gap between the locking piece 213 and the main part 210 and screwing the board 200 into the main part 210 while the board 200 is positioned by the positioning piece 212 (see FIGS. 11 and 16). At this time, the light source module 20 and the power supply unit 5 are electrically connected through a through hole provided in the main part 210.

[0072] (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. 11). 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.

[0073] (2-6-4) End member installation process First, the main body 70 of the seal member 7 is attached to the tubular portion 600 of the cover end portion 60 so as to cover the tubular portion 600. Then, the pair of coupling portions 604 of the cover end portion 60 are inserted one by one into the pair of coupling grooves 616 of the main body 610 of the end cap portion 61, thereby coupling the cover end portion 60 and the main body 610 of the end cap portion 61 (see FIG. 12). At this time, the mating protrusions 606 of the cover end portion 60 and the mating recesses 618 of the end cap portion 61 are mated, thereby positioning the cover end portion 60 and the end cap portion 61.

[0074] Next, the pair of protrusions 617 on the main body 610 of the end cap portion 61 are fitted into the two fitting grooves 624 of the fitting 62 one by one, thereby attaching the fitting 62 to the end cap portion 61.

[0075] Then, the flange portion 631 is inserted into the space between the pair of support pieces 614 of the end cap portion 61 and the main body 610, thereby attaching the lid body 63 to the end cap portion 61. Note that the lid body 63 is prevented from coming off the main body 610 by the claw portions 633 provided on the main body portion 630 being caught in the recesses 619 provided on the back surface of the main body 610 of the end cap portion 61 (see FIG. 16).

[0076] Here, with the lid body 63 attached to the end cap portion 61, the support plate 622 of the mounting fixture 62 is sandwiched between the pair of support portions 632 of the lid body 63 and the horizontal pieces 613 of the main body 610 (see FIG. 16). As a result, the pair of support portions 632 restrict the movement of the mounting fixture 62 in the up and down direction, so that the projection 617 and the engaging groove 624 will not come out of engagement.

[0077] The end members 6 assembled as described above are attached to both longitudinal ends of the support member 21 and the cover 22, one by one. Specifically, the front and rear end portions of the fixing plate 620 of the mounting fixture 62 are inserted between the upper surface of the main portion 210 and the pair of protrusions 215. Furthermore, the pair of protrusions 615 of the end cap portion 61 are inserted below the hook portions 31 of the pair of side wall portions 211. In other words, the pair of protrusions 615 of the end cap portion 61 are hooked onto the hook portions 31 in the up-down direction. As a result, rattle of the end cap portion 61 relative to the support member 21 is suppressed. Then, the fixing plate 620 is screwed to the main portion 210 of the support member 21 with two screws inserted into the two screw insertion holes 623 of the fixing plate 620.

[0078] Furthermore, the tubular portion 600 of 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 main body 610 of the end cap portion 61. The seal pieces 71 of the seal member 7 inserted into the cover 22 are in close contact with the inner surfaces of the front wall 220 and the side wall portion 211 of the cover 22, thereby closing the gap between the cover end portion 60 and the cover 22 (see FIG. 16).

[0079] Here, if the main body 70 of the sealing member 7 is in close contact with the inner surfaces of the front wall 220 and the side wall portion 211 of the cover 22, the frictional force between the sealing member 7 and the cover 22 may become too large when the cover 22 expands or contracts due to the influence of heat, which may cause excessive stress on the cover 22.

[0080] However, by adhering the seal piece 71 of the seal member 7 to the inner surfaces of the front wall 220 and side wall portion 211 of the cover 22 as described above, the frictional force between the seal member 7 and the cover 22 does not become greater than necessary, and the stress generated in the cover 22 can be suppressed.

[0081] Furthermore, when the end member 6 is attached to the longitudinal ends of the support member 21 and the cover 22, the pair of pressing pieces 605 of the cover end portion 60 are positioned so as to overlap the ends of the substrate 200 of the light source module 20 in the vertical direction (see FIG. 16 ). Therefore, when an external force is applied to the cover end portion 60, the pressing pieces 605 press the substrate 200, thereby preventing the cover end portion 60 from falling into the cover 22.

[0082] 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.

[0083] (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.

[0084] Next, the worker temporarily hangs the light source unit 2 from the fixture body 1 by hooking one end of each of the two strings attached to the string attachment portions 232 of the two mounting bases 23 into the two hooking holes 18 of the fixture body 1. In this 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.

[0085] Then, while supporting the light source unit 2 in the temporarily hung 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. This prevents 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.

[0086] Furthermore, the tip portions of the pair of spring pieces 300 of the mounting spring 30 are inclined inward (away from the hooking portion 31). Therefore, the worker can smoothly bend the tip portions of the spring pieces 300 without them getting caught in the hooking portion 31, and finally, the spring pieces 300 can be securely hooked onto the hooking portion 31.

[0087] Furthermore, since the amount of deformation (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.

[0088] 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 FIGS. 11 and 15). In other words, the light source unit 2 is mounted to the fixture body 1 by the mounting member 3 made up of the two mounting springs 30 and the hook portions 31. 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.

[0089] As shown in FIG. 17 , the light source unit 2 has a small gap between the longitudinal end of the cover 22 and the wall 601 of the cover end portion 60 of the end member 6. That is, while the power supply unit 5 is operating and lighting the light source module 20, the temperature of the cover 22 rises, and the cover 22, which is made of a synthetic resin molded body, expands due to thermal expansion. If there were no gap between the end of the cover 22 and the wall 601 of the cover end portion 60, the end of the cover 22 expanded due to thermal expansion would come into contact with the wall 601, preventing the expansion of the cover 22 and potentially causing defects such as warping or deformation of the cover 22. However, by providing a gap between the end of the cover 22 and the wall 601 of the cover end portion 60 as described above, the light source unit 2 makes it less likely for the end of the cover 22 expanded due to thermal expansion to come into contact with the wall 601. As a result, the light source unit 2 and the lighting fixture A1 can prevent defects such as breakage of the cover 22 caused by expansion of the cover 22 due to thermal expansion.

[0090] Even if a small gap is created between the longitudinal end of the cover 22 and the wall 601 of the cover end portion 60 of the end member 6, the boundary between the cover 22 and the support member 21 is blocked by the pair of ribs 72 of the seal member 7 (see FIG. 17). Therefore, it is possible to prevent foreign matter from entering the cover 22 through the gap at the boundary between the cover 22 and the support member 21.

[0091] Incidentally, there are cases where multiple lighting fixtures A1 are attached to the ceiling in a row with no gaps between them. In this case, the lid 63 is removed from the main body 610 of the end cap portion 61, and the power cable 80 and the signal cable are routed and wired through the hole 611 in the end cap portion 61. This allows the worker to simply pull and remove the lid 63 from the end cap portion 61 of the light source unit 2 before attaching it to the fixture main body 1, thereby improving the workability of the wiring work.

[0092] (3) Features of the embodiment One feature of the light source unit 2 according to this embodiment is that the cover end portion 60 and the end cap portion 61 of the end member 6 are integrally joined. Specifically, the cover end portion 60 and the end cap portion 61 are joined by inserting a pair of joining portions 604 provided on the cover end portion 60 into a pair of joining grooves 616 provided on the end cap portion 61, respectively. However, the cover end portion 60 and the end cap portion 61 may also be integrally formed as a synthetic resin molded body by two-color molding of a translucent synthetic resin material and a non-translucent synthetic resin material.

[0093] According to the above-described features, the longitudinal end (end member 6) of the light source unit 2, which defines the exterior of the lighting fixture A1, is less likely to become misaligned, regardless of the state when attached to the fixture body 1 or the expansion and contraction caused by temperature conditions. As a result, the light source unit 2 has an improved appearance compared to the conventional example described in Patent Document 1. In particular, the design surface of the end member 6 is a flat surface including the surface of the cover end portion 60 (the outer surface of the wall portion 601) and the surface of the end cap portion 61 (the outer surface of the main body 610) (see FIG. 17 ), thereby further improving the appearance. Furthermore, the design surface (the outer surface of the main body 630) of the lid body 63, which is detachably attached to the main body 610 of the end cap portion 61, is also a flat surface including the surfaces of the cover end portion 60 and the end cap portion 61 (see FIGS. 3 and 17 ). Therefore, the light source unit 2 has an improved appearance.

[0094] Here, the main body 610 of the end cap portion 61 is formed in a U-shape with an open end (top end) opposite the cover end portion 60. The lid body 63 is movable parallel to the main body 610 through the opening at the top end of the main body 610 (see FIG. 13). Therefore, the power cable 80 for feeding wiring passes through a space on the end cap portion 61 side of the boundary between the cover end portion 60 and the end cap portion 61, and is introduced into and led out of the light source unit 2 from the hole 611 in the main body 610. As a result, the shadow of the power cable 80 is not visible through the translucent cover end portion 60, further improving the appearance of the light source unit 2.

[0095] (4) Variations A modified example of lighting device A1 according to the embodiment will be described with reference to Figures 18 and 19. However, lighting device A2 of the modified example has a common configuration with lighting device A1, except for the structure of functional block 4. Therefore, in lighting device A2 of the modified example, components common to lighting device A1 are denoted by the same reference numerals, and illustrations and descriptions thereof will be omitted as appropriate.

[0096] In the functional block 4 of the lighting fixture A2 of the modified example, the third holding piece 423 of the holding member 42 is formed in an L-shape. A pair of claws 44 is provided on the tip of the flange portion 431 of the bushing portion 43 and on the upper end of the guide piece 400 of the guide member 40 (see FIG. 18 ). The functional block 4 is attached to the fixture body 1 by hooking these claws 44 onto the edges of the second electric wire hole 13 and the hook hole 102 of the bottom plate 10.

[0097] In the lighting fixture A2 of the modified example, similarly to the lighting fixture A1, the electric wire 17 is held by the holding member 42, and the coating of the electric wire 17 can be prevented from being damaged.

[0098] (5) Summary A light source unit (2) according to a first aspect of the present disclosure is detachably attached to an elongated fixture body (1). The light source unit (2) according to the first aspect includes an elongated light source module (20) and an elongated support member (21) that supports the light source module (20). The light source unit (2) according to the first aspect includes end members (6) attached to longitudinal ends of the support member (21), and an elongated, light-transmitting cover (22) that covers the light source module (20). The light source module (20) includes an elongated 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) formed in the shape of an elongated plate and facing the back surface of the substrate (200), and a pair of side walls (211) that rise from a pair of longitudinal side ends of the main portion (210) toward the back surface of the substrate (200). The cover 22 is formed in a semi-cylindrical shape with both longitudinal ends open. The end member 6 has a cover end portion 60 that closes the longitudinal opening of the cover 22, and end cap portions 61 that close the longitudinal ends of the main portion 210 and the pair of side wall portions 211. The cover end portion 60 and the end cap portions 61 are joined together.

[0099] In the light source unit (2) according to the first aspect, the cover end portion (60) and the end cap portion (61) are integrally joined, which makes it difficult for defects such as misalignment and rattle between the cover end portion (60) and the end cap portion (61) to occur. As a result, the light source unit (2) according to the first aspect can achieve an improved appearance compared to conventional examples such as the lighting device described in Patent Document 1.

[0100] 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 design surface of the end member (6) is preferably a flat surface including the surface of the cover end portion (60) and the surface of the end cap portion (61).

[0101] In the light source unit (2) according to the second aspect, the design surface of the end member (6) is a flat surface including the surface of the cover end portion (60) and the surface of the end cap portion (61), thereby further improving the appearance.

[0102] A light source unit (2) according to a third aspect of the present disclosure can be realized by combining it with the first or second aspect. In the light source unit (2) according to the third aspect, the end member (6) preferably has a connecting portion (connecting portion 604, connecting groove 616) that connects the cover end portion (60) and the end cap portion (61).

[0103] In the light source unit (2) according to the third aspect, the cover end portion (60) and the end cap portion (61) can be formed from different synthetic resin materials, and yet can be integrally joined together at the joining portion.

[0104] A light source unit (2) according to a fourth aspect of the present disclosure can be realized by combining it with any one of the first to third aspects. In the light source unit (2) according to the fourth aspect, it is preferable that the light source unit (2) includes a mounting fixture (62) for mounting the end member (6) to the support member (21).

[0105] In the light source unit (2) according to the fourth aspect, the end member (6) can be firmly attached to the support member (21) by the attachment (62).

[0106] A light source unit (2) according to a fifth aspect of the present disclosure can be realized by combining it with any of the first to fourth aspects. In the light source unit (2) according to the fifth aspect, the end cap portion (61) preferably has a main body (610) having a hole (611) for passing wires through, and a cover (63) detachably attached to the main body (610) to close the hole (611).

[0107] In the light source unit (2) according to the fifth aspect, an electric wire for the feed wiring can be passed through the hole (611) in the main body (610) after the lid (63) is removed, and when the feed wiring is not required, the hole (611) in the main body (610) can be closed with the lid (63). As a result, the light source unit (2) according to the fifth aspect can further improve its appearance by closing the hole (611) in the main body (610) of the end cap portion (61) with the lid (63).

[0108] A light source unit (2) according to a sixth aspect of the present disclosure can be realized by combining it with the fifth aspect. In the light source unit (2) according to the sixth aspect, the main body (610) preferably has an open end opposite the cover end portion (60) and is formed in a U-shape surrounding the hole (611). The lid body (63) preferably can move parallel to the main body (610) through the open end.

[0109] In the light source unit (2) according to the sixth aspect, the electric wire for the feed wiring can be introduced and led out from the hole (611) of the main body (610) through a space closer to the end cap portion (61) than the boundary between the cover end portion (60) and the end cap portion (61). As a result, the light source unit (2) according to the sixth aspect can further improve its appearance.

[0110] A light source unit (2) according to a seventh aspect of the present disclosure can be realized by combining it with any of the first to sixth aspects. The light source unit (2) according to the seventh aspect preferably includes a sealing member (7) that seals a gap between a longitudinal end of the cover (22) and the cover end portion (60).

[0111] The light source unit (2) according to the seventh aspect can prevent foreign matter (dust, insects, etc.) from entering the cover (22) by sealing the gap between the longitudinal end of the cover (22) and the cover end portion (60) with the sealing member (7).

[0112] A light source unit (2) according to an eighth aspect of the present disclosure can be realized by combining it with the seventh aspect. In the light source unit (2) according to the eighth aspect, the cover end portion (61) preferably has a tubular portion (600) that is inserted into the cover (22) from its end. The sealing member (7) preferably has a tubular main body (70) that fits onto the outside of the tubular portion (600), and a sealing piece (71) that protrudes from the outer peripheral surface of the main body (70) and abuts against the inner wall surface of the cover (22).

[0113] In the light source unit (2) according to the eighth aspect, the sealing piece (71) of the sealing member (7) is brought into close contact with the inner wall surface of the cover (22), so that the frictional force between the sealing member (7) and the cover (22) does not become greater than necessary, and stress generated in the cover (22) can be suppressed.

[0114] A light source unit (2) according to a ninth aspect of the present disclosure can be realized by combining it with the eighth aspect. In the light source unit (2) according to the ninth aspect, the sealing member (7) preferably has a rib (72) that protrudes from the outer peripheral surface of the main body (70) and closes the boundary portion between the cover (22) and the support member (21).

[0115] In the light source unit (2) according to the ninth aspect, even if a small gap is created between the longitudinal end of the cover (22) and the end member (6) in consideration of the extension of the cover (22), the boundary between the cover (22) and the support member (21) can be blocked by the rib (72). As a result, the light source unit (2) according to the ninth aspect can prevent foreign matter from entering the cover (22) through the gap at the boundary between the cover (22) and the support member (21).

[0116] A lighting fixture (A1; A2) according to a tenth aspect of the present disclosure comprises a light source unit (2) according to any one of the first to ninth aspects and a long fixture body (1) to which the light source unit (2) is detachably attached.

[0117] The lighting fixtures (A1, A2) according to the tenth aspect can improve the appearance compared to conventional examples such as the lighting device described in Patent Document 1. [Explanation of symbols]

[0118] A1, A2 lighting equipment 1. Device body 2 Light source unit 6 End member 7 Sealing material 20 Light Source Module 21 Support member 22 Cover 60 Cover end 61 End cap part 62 Mounting fixture 63 Lid 70 Main Unit 71 Sticker piece 72 Ribs 200 boards 201 LED (light-emitting element) 210 Main Section 211 Side wall 604 Joint part (joint part) 610 Main Unit 611 hole 616 Joint groove (joint part) 620 Fixed plate 621 Connecting plate 622 Support plate

Claims

1. A light source unit that can be detachably attached to a long fixture body, a long light source module; a long support member that supports the light source module; an end member; a mounting fixture that mounts the end member to an end of the support member in a longitudinal direction; and a long, translucent cover that covers the light source module; the end member has a cover end portion attached to an end of the cover in the longitudinal direction and an end cap portion attached to an end of the support member in the longitudinal direction, the mounting fixture has a fixing plate fixed to the end portion, a support plate supporting the end member, and a connecting plate connecting the fixing plate and the support plate, The fixing plate, the support plate, and the connecting plate are integrally formed by processing a metal plate. Light source unit.

2. The mounting fixture is attached to the end cap portion by fitting a protrusion provided on the end cap portion into a fitting groove formed in the fixing plate, the support plate, and the connecting plate. The light source unit according to claim 1 .

3. The design surface of the end member is a flat surface including the surface of the cover end portion and the surface of the end cap portion.

3. The light source unit according to claim 1.

4. The end member has a connecting portion that connects the cover end portion and the end cap portion. The light source unit according to any one of claims 1 to 3.

5. The end cap portion has a main body having a hole for passing a wire through, and a lid body that is detachably attached to the main body and closes the hole. The light source unit according to any one of claims 1 to 4.

6. The main body is formed in a U-shape, with an end opposite to the cover end portion being open and surrounding the hole, The cover is movable parallel to the main body through the opening at the end. The light source unit according to claim 5 .

7. The light source unit according to any one of claims 1 to 6, further comprising a sealing member that seals a gap between an end of the cover in the longitudinal direction and the cover end portion.

8. the cover end portion has a tubular portion inserted into the cover from the end portion, The sealing member has a cylindrical main body that fits onto the outside of the cylindrical portion, and a sealing piece that protrudes from the outer circumferential surface of the main body and abuts against the inner wall surface of the cover. The light source unit according to claim 7.

9. The sealing member has a rib that protrudes from the outer circumferential surface of the main body and closes the boundary portion between the cover and the support member. The light source unit according to claim 8.

10. A light source unit according to any one of claims 1 to 9, and a long fixture body to which the light source unit is detachably attached. Lighting fixtures.

Images