Lighting device and luminaire

Abstract

To provide a lighting device capable of improving assemblability.SOLUTION: The lighting device A1 includes a light module 1 and a support member 3 for supporting the light module 1. The support member 3 includes a support part 30, and a plurality of receiving parts 36 for receiving a part 15 of the light source module 1 moving in a predetermined direction along the support part 30. The plurality of receiving portions 36 are located on both sides of the light module 1 in a second direction D1 which is a direction orthogonal to the first direction D2 including the predetermined direction and along the support portion 30, and are arranged along the first direction D1.SELECTED DRAWING: Figure 18

Description

[Technical Field]

[0001] The present disclosure generally relates to lighting devices and lighting fixtures, and more particularly to a lighting device including a light source module and a support member, and a lighting fixture including the lighting device and a fixture body. [Background technology]

[0002] Patent Document 1 discloses a light source unit. This light source unit includes a light-emitting element substrate, a holding portion, and a cover portion. A light-emitting element is mounted on the mounting surface of the light-emitting element substrate. The holding portion has a flat plate region and a crimping portion formed by cutting and raising a part of the flat plate region and fixing the light-emitting element substrate arranged on one surface of the flat plate region. The cover portion is a cover that covers the light-emitting element substrate, has a closing portion that closes an opening formed by cutting and raising the crimping portion, and is fixed to the holding portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-110977 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the light source unit of Patent Document 1, when fixing the light-emitting element substrate to the holder, a part of the flat area of ​​the holder must be cut and raised to form a crimping portion, which makes assembly difficult.

[0005] An object of the present disclosure is to provide a lighting device and a lighting fixture that can be easily assembled. [Means for solving the problem]

[0006] An illumination device according to one aspect of the present disclosure includes a light source module and a support member that supports the light source module. The support member includes a support portion and a plurality of receiving portions that receive a portion of the light source module that moves in a predetermined direction along the support portion. The plurality of receiving portions are positioned on both sides of the light source module in a second direction that is perpendicular to a first direction that includes the predetermined direction and is a direction along the support portion, and are aligned along the first direction.

[0007] A lighting fixture according to one aspect of the present disclosure includes the lighting device and a fixture body that holds the lighting device. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to improve assembly efficiency. [Brief explanation of the drawings]

[0009] [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 an exploded perspective view of the lighting fixture and the light source unit according to the embodiment of the present disclosure. [Figure 3] FIG. 3 is a perspective view of the light source unit and the lighting fixture body of the lighting fixture as viewed from above. [Figure 4] FIG. 4 is a side view of the light source unit. [Figure 5] FIG. 5 is a partially cutaway perspective view of the lighting fixture. [Figure 6] FIG. 6 is a vertical cross-sectional view of the lighting fixture of the same, with a portion thereof omitted. [Figure 7] FIG. 7 is a vertical cross-sectional view of the lighting fixture of the same, with a portion thereof omitted. [Figure 8] FIG. 8 is a side view of the lighting fixture with a portion thereof omitted. [Figure 9] FIG. 9 is a plan view of a part of the light source unit. [Figure 10] FIG. 10 is a side view of a part of the light source unit. [Figure 11] FIG. 11 is a side view of a part of the light source unit. [Figure 12] FIG. 12 is a circuit block diagram of the light source unit of the above embodiment. [Figure 13] FIG. 13 is a side view of the light source unit. [Figure 14] FIG. 14 is a side view of the above lighting fixture in a temporarily hung state, with some parts omitted. [Figure 15] FIG. 15 is a side view of the same lighting fixture with a portion thereof omitted, showing the light source unit being attached to the fixture body. [Figure 16] FIG. 16 is a plan view of the above lighting fixtures in a state where the fixture bodies are arranged in series and installed. [Figure 17] FIG. 17 is a side view of a main part of the light source unit in the state where the power supply unit and the power supply connector are not connected. [Figure 18] FIG. 18 is an exploded perspective view of the light source unit of the same, with a portion thereof omitted. [Figure 19] FIG. 19 is a perspective view of the light source unit of the same, with a portion thereof omitted. [Figure 20] FIG. 20 is a simplified plan view showing a state before the light source module in the light source unit is attached to the support member. [Figure 21] FIG. 21 is a simplified plan view showing a state in which the light source module in the light source unit is being attached to the support member. [Figure 22] FIG. 22 is a simplified plan view showing a state after the light source module in the light source unit has been attached to a support member. [Figure 23] FIG. 23 is a perspective view showing a receiving portion of a support member in the light source unit. [Figure 24] FIG. 24 is a plan view of the light source unit of the same, with a portion thereof omitted. [Figure 25] FIG. 25 is a cross-sectional view of a main part of the lighting fixture. [Figure 26] FIG. 26 is a perspective view showing a receiving portion of a support member in the light source unit of the first modified example. [Figure 27] FIG. 27 is a perspective view showing a receiving portion of a support member in a light source unit of the second modification. [Figure 28] FIG. 28 is a plan view showing a receiving portion of a support member in a light source unit of the third modification. [Figure 29] FIG. 29 is a plan view showing a receiving portion of a support member in a light source unit of the fourth modification. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, lighting devices and lighting fixtures according to embodiments of the present disclosure will be described in detail with reference to the drawings. However, the drawings described in the following embodiments are schematic diagrams, 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.

[0011] (1) Overview An illumination device A1 (light source unit A1) according to this embodiment includes a light source module 1 and a support member 3 (see FIGS. 1 to 3). The support member 3 supports the light source module 1.

[0012] The support member 3 includes a support portion 30 and a plurality of receiving portions 36 (see FIGS. 18 and 19). The plurality of receiving portions 36 receive a part 15 of the light source module 1 that moves in a predetermined direction along the support portion 30 (see FIG. 19).

[0013] The receiving portions 36 are located on both sides of the light source module 1 in the second direction D2 and are aligned along the first direction D1 (see FIGS. 18 and 19). The first direction D1 includes a predetermined orientation. The second direction D2 is perpendicular to the first direction D1 and extends along the support portion 30.

[0014] According to the lighting device A1 according to this embodiment, when the light source module 1 is attached to the support member 3, it is not necessary to form a caulking portion on the support member 3.

[0015] Therefore, the ease of assembly can be improved.

[0016] (2) Details (2-1) Lighting equipment First, a lighting fixture B1 according to an embodiment (hereinafter abbreviated as lighting fixture B1) will be described.

[0017] As shown in FIGS. 1 to 3, the lighting fixture B1 includes a lighting device according to an embodiment, namely, a light source unit A1 (hereinafter abbreviated as light source unit A1), and a fixture body 6 that holds the light source unit A1. The light source unit A1 is detachably attached to the fixture body 6, which is directly attached to the ceiling. However, the fixture body 6 may also be embedded in the ceiling. Alternatively, the fixture body 6 may be directly attached to a wall or embedded in the wall.

[0018] The fixture main body 6 includes a long, box-shaped storage section 60 with an open bottom, a pair of reflecting plates 61 protruding obliquely upward from both longitudinal opening edges of the storage section 60, and a pair of end plates 62 provided on both longitudinal ends of the storage section 60 and the pair of reflecting plates 61 (see FIGS. 2 and 3). The storage section 60 and the pair of reflecting plates 61 are integrally formed by punching and bending a metal plate. However, the fixture main body 6 may not include the pair of reflecting plates 61 and may be configured only with the storage section 60 whose longitudinal ends are closed by the pair of end plates 62.

[0019] The fixture body 6 is installed on the ceiling S1 by inserting hanger bolts 90 into at least two of the multiple mounting holes 63 provided on the bottom surface (top surface) of the housing portion 60 and tightening nuts 91 onto the hanger bolts 90 (see FIG. 2). A power cable 92 is also inserted into one of the multiple power supply holes 64 provided on the bottom surface of the housing portion 60. However, when multiple lighting fixtures B1 are installed, another power cable for feeding wiring may be inserted into another power supply hole 64. Furthermore, another power cable for feeding wiring may be inserted into a hole formed by cutting out a knockout portion 620 (see FIG. 2) provided in the end plate 62.

[0020] A terminal block 65 is attached to the bottom surface of the housing portion 60. The terminal block 65 is electrically connected to a power line 93. A power connector 94 is provided at the tip of the power line 93.

[0021] Thus, the power cable 92 inserted into the power hole 64 of the fixture body 6 is electrically connected to the terminal block 65, and is electrically connected to the power supply unit 2 of the light source unit A1 via the terminal block 65, the power line 93 and the power connector 94.

[0022] The storage section 60 has a pair of hooking holes 600 (first hooked portions) and a pair of hooking fittings 601 (second hooked portions) at positions near both ends in the longitudinal direction (see FIGS. 2 and 5). The pair of hooking holes 600 are provided in a side wall at one end in the short direction of the storage section 60. The pair of hooking fittings 601 are located at the top of the other end in the short direction of the storage section 60 (see FIGS. 2 and 5). However, in the device body 6, instead of providing the pair of hooking holes 600 in a side wall at one end in the short direction of the storage section 60, fittings having hooking holes may be provided at one end in the short direction of the storage section 60.

[0023] (2-2) Light source unit 2 and 3, the light source unit A1 includes a light source module 1, a support member 3, a cover 5, a first hook member 37, and a second hook member 38. The light source unit A1 also includes a power supply unit 2 and a communication unit 4.

[0024] (2-2-1) Light source module The light source module 1 has two substrates 11 and a number of light sources 10 mounted on the surface (underside) of each substrate 11. The light sources 10 include, for example, LEDs (Light Emitting Diodes). The LEDs, which are light-emitting elements, are, for example, packaged white LEDs for lighting. However, the light-emitting elements are not limited to LEDs and may be organic electroluminescence elements, semiconductor laser elements, or the like.

[0025] Each substrate 11 is formed in a long rectangular shape. The multiple light sources 10 are mounted on the surface (lower surface) of each substrate 11 at the center of the short side direction, and are arranged in a row at equal intervals along the longitudinal direction of each substrate 11 (see FIG. 2). The multiple light sources 10 are electrically connected in series or series-parallel by printed wiring formed on the surface of each substrate 11. Furthermore, two sets of connectors 12 are mounted on one end of the surface of each substrate 11 in the longitudinal direction (see FIG. 2). The printed wiring formed on the surface of each substrate 11 is electrically connected via the two sets of connectors 12.

[0026] (2-2-2) Support member The support member 3 is made of a metal plate and is formed in the shape of a long rectangular trough (see Figs. 2 and 8). The support member 3 has a support portion 30, which is a long rectangular bottom plate, and a pair of side plates 31 that rise upward from both ends along the longitudinal direction of the support portion 30. The width of the support portion 30 in the short side direction is greater than the width of the substrate 11 in the short side direction (see Fig. 2).

[0027] The support part 30 also has protrusions 34 on both ends in the short side direction (see FIG. 8). Each protrusion 34 is U-shaped when viewed in the long side direction of the support part 30, and protrudes downward from the first surface 30A of the support part 30. The pair of side plates 31 protrude upward from the outer ends of the protrusions 34.

[0028] The support member 3 is provided with a pair of first hook members 37 protruding from one end in the short direction toward both ends in the longitudinal direction to the outside of the support member 3 (see FIGS. 2 and 3). Furthermore, the support member 3 is provided with a pair of second hook members 38 at the other end in the short direction toward both ends in the longitudinal direction (see FIG. 3). The pair of first hook members 37 and the pair of second hook members 38 play a role in holding the light source unit A1 to the fixture body 6.

[0029] The support member 3 supports the light source module 1, which will be described in detail in the section "(2-3) Mounting of the light source module to the support member."

[0030] (2-2-3) First hook member The first hooking member 37 has a main piece 370 formed in the shape of a rectangular flat plate, a rising piece 371 bent upward from one longitudinal edge of the main piece 370, and a hooking piece 372 protruding from the tip (upper end) of the rising piece 371 in the opposite direction to the main piece 370 (see FIGS. 8 and 9). The tip of the hooking piece 372 is bent in a V-shape. The main piece 370, the rising piece 371, and the hooking piece 372 are integrally formed by bending a single metal plate.

[0031] The first hooking member 37 is attached to the support member 3 via a mounting bracket 39. The mounting bracket 39 has a first mounting portion 391, a second mounting portion 392, and a temporary holding portion 393 (see FIGS. 8 and 9).

[0032] The first mounting portion 391 has a rectangular first mounting plate 3910, a protruding plate 3911 rising from one short edge of the first mounting plate 3910, and four support pieces 3912 protruding upward from the other short edge of the first mounting plate 3910 (see FIGS. 8 and 9). An L-shaped support protrusion 3913 protrudes from each end of the tip of the protruding plate 3911 in the width direction.

[0033] Each of the four support pieces 3912 is formed in an L-shape. The four support pieces 3912 are arranged in two rows at intervals along the short-side and long-side directions of the first mounting plate 3910. However, two support pieces 3912 arranged along the long-side direction of the first mounting plate 3910 are arranged in a direction such that their tips approach each other.

[0034] The first hooking member 37 has the main piece 370 inserted into the space formed between the four support pieces 3912 and the first mounting plate 3910, and the hooking piece 372 inserted into the space formed between the tip of the projecting plate 3911 and the pair of support protrusions 3913. In other words, the first hooking member 37 is attached to the first mounting part 391 by the four support pieces 3912 and the pair of hooking pieces 372 so as to be slidable along the short-side direction of the first mounting plate 3910 (the short-side direction of the support part 30).

[0035] The second mounting portion 392 has a flat second mounting plate 3920 connected to one edge of the first mounting plate 3910 in the short direction, and a holding piece 3921 protruding upward from the second mounting plate 3920 (see FIG. 9). The holding piece 3921 is formed in an inverted U shape.

[0036] The temporary holding portion 393 is formed in a plate shape and protrudes upward from one end in the longitudinal direction (longitudinal direction of the support portion 30) of the second attachment plate 3920. The temporary holding portion 393 is formed integrally with the second attachment portion 392.

[0037] A recess 3930 is formed in the upper end portion of temporary holding portion 393. Recess 3930 is formed so that one wall extends in the vertical direction and the opposite wall slopes upward and away from the one wall (see FIG. 8). In addition, an L-shaped cutout is formed next to recess 3930 in the upper end portion of temporary holding portion 393.

[0038] The mounting bracket 39 is screwed to the second surface 30B (the surface (upper surface) opposite to the first surface 30A) of the support part 30 of the support member 3. However, the mounting bracket 39 may be fixed to the support part 30 by a method other than screwing, such as caulking, welding, or adhesive.

[0039] (2-2-4) Second hook member The second hooking member 38 has a coil portion 380 that corresponds to the fixed portion, and an arm portion 381 that protrudes from the coil portion 380 and hooks onto the appliance main body 6 (hooking metal fitting 601) (see FIG. 9). The arm portion 381 is formed by extending one of the two winding ends of the coil portion 380. In the following description, the other winding end of the coil portion 380 will be referred to as the winding end portion 382. The winding end portion 382 is formed to be sufficiently shorter than the arm portion 381 (see FIG. 9).

[0040] The arm 381 has a bent portion 383 that bends in the height direction (downward) toward the support member 3 (see FIG. 10). The bending angle of the bent portion 383 is an obtuse angle. The tip of the arm 381 is bent in an L-shape (see FIG. 9).

[0041] The second hooking member 38 is attached to the support member 3 via a mounting bracket 39. That is, the second hooking member 38 is attached to the second mounting portion 392 by hooking the coil portion 380 onto a holding piece 3921 of the second mounting portion 392 (see FIG. 9). When attached to the second mounting portion 392, the arm portion 381 is positioned so as to climb over the temporary holding portion 393.

[0042] The tip of winding end portion 382 is bent at a substantially right angle. Then, the tip of winding end portion 382 passes through groove 3922 formed in second mounting plate 3920 and is inserted into a through-hole formed in support portion 30. This restricts axial rotation of coil portion 380.

[0043] (2-2-5) Power supply unit The power supply unit 2 has a power supply device 20 and a power supply case 21 that houses the power supply device 20 (see FIG. 6).

[0044] Power supply device 20 has a printed circuit board 22 in which wiring conductors are printed on a rectangular insulating substrate, and a plurality of circuit components (not shown) mounted on both the front and back surfaces of printed circuit board 22. In other words, power supply device 20 is composed of a printed circuit.

[0045] 12 shows the circuit configuration of the power supply device 20. The power supply device 20 includes a power conversion circuit 200, a constant current circuit 201, a control circuit 202, and the like.

[0046] The power conversion circuit 200 includes, for example, a rectifier circuit such as a diode bridge, a boost chopper circuit (power factor correction circuit), etc. The power conversion circuit 200 converts AC power supplied from an external power source P1 through a power connector 23 into DC power. The external power source P1 is, for example, a commercial power system, and supplies AC voltage and current with an effective value of 100 V or 200 V. However, the power conversion circuit 200 may include a switching power supply circuit with a power factor correction function, such as a step-down chopper circuit, a step-up / step-down chopper circuit, or a flyback converter, instead of the step-up chopper circuit.

[0047] The constant current circuit 201 has, for example, a step-down chopper circuit (buck converter). The constant current circuit 201 steps down the DC voltage output from the power conversion circuit 200 and applies it to the light source module 1, and also adjusts the DC current flowing through the light source module 1. However, the constant current circuit 201 may include various chopper circuits, series regulators, etc. instead of the step-down chopper circuit.

[0048] The control circuit 202 includes, for example, a microcontroller. The control circuit 202 controls the power conversion circuit 200 so as to maintain the output voltage of the power conversion circuit 200 at a constant DC voltage. Furthermore, the control circuit 202 controls the step-down chopper circuit of the constant current circuit 201 so as to make the DC current supplied from the constant current circuit 201 to the light source module 1 coincide with a target value. The control circuit 202 changes the target value of the DC current supplied to the light source module 1 in response to a dimming signal received from the communication unit 4.

[0049] Here, the power connector 23 is mounted on one longitudinal end of the printed circuit board 22 (see FIG. 6). Note that the power connector 23 in the embodiment is a connector to which the power connector 94 is removably connected, but a terminal block to which the conductor of an electric wire is electrically connected may be used instead of the power connector 23. Alternatively, instead of the power connector 23, an output wire may be drawn out from the power supply device 20 and soldered to the conductor of the power line 93. Note that the configuration of the power connector 23 includes configurations other than those described above. However, in FIG. 6, illustration of circuit components mounted on the front surface (lower surface) and back surface (upper surface) of the printed circuit board 22 is omitted.

[0050] The power supply case 21 has a rectangular bottom wall 210 and a pair of first side walls 211 that protrude downward from both ends of the bottom wall 210 in the longitudinal direction along the short side of the bottom wall 210. The power supply case 21 also has a pair of second side walls 212 that protrude downward from both ends of the bottom wall 210 in the short side direction along the long side of the bottom wall 210 (see FIGS. 6 and 8). That is, the power supply case 21 is formed in the shape of a long box with an opening in the front (below) of the bottom wall 210. The socket for the power connector 23 protrudes to the outside of the power supply case 21 through a window hole provided in one of the first side walls 211 (see FIG. 8).

[0051] The power supply unit 2 is attached to the support part 30 of the support member 3 so that the opening of the power supply case 21 faces the second surface 30B of the support part 30 (see FIGS. 6 and 8). The power supply case 21 is attached to the support part 30 by an appropriate method such as screwing, crimping, or adhesive.

[0052] (2-2-6) Communication unit The communication unit 4 has a communication circuit section 40 and a communication connector 47 (see FIG. 12 ). The communication circuit section 40 receives control signals transmitted via a signal line (not shown). The control signals are signals that transmit control information such as a turn-on instruction, a turn-off instruction, and a dimming level. The communication circuit section 40 is communicably connected to the control circuit 202 of the power supply device 20 via the communication connector 47. The communication circuit section 40 transmits the control information contained in the received control signal to the control circuit 202 via the communication connector 47. The control circuit 202 turns the light source module 1 on and off, changes the dimming level, etc., in accordance with the control information received from the communication circuit section 40. However, the communication circuit section 40 may be configured to perform wireless communication using infrared or radio waves as a communication medium instead of wired communication.

[0053] The communication unit 4 also has a case 43 that houses the communication circuit section 40 and the communication connector 47 (see FIG. 6). The case 43 is formed in a box shape from electrically insulating synthetic resin. The case 43 is attached to the first side wall 211 of the power supply case 21 (the first side wall 211 opposite the power connector 23) (see FIG. 6). However, the communication unit 4 may be attached to a location other than the power supply case 21, for example, to the support member 3.

[0054] (2-2-7) Cover The cover 5 has a cover body 50 formed in the shape of a long semi-cylindrical cylinder, a pair of cover ends 54 attached to both ends of the cover body 50 in the longitudinal direction, a pair of protruding walls 51, and a pair of extending portions 53 (see FIGS. 2, 3, and 8). However, the shape of the cover body 50 is not limited to a long semi-cylindrical shape, and may be any shape such as a rectangular tube shape.

[0055] The pair of extending portions 53 extend inward from both ends of the cover body 50 in the shorter direction along the longitudinal direction of the cover body 50. The pair of projecting walls 51 extend upward along the longitudinal direction of the cover body 50 from connecting pieces 531 of the pair of extending portions 53 (see FIG. 8). Hook-shaped hook portions 52 are integrally formed on the upper ends of the pair of projecting walls 51 along the longitudinal direction of each projecting wall 51. The cover body 50, the pair of projecting walls 51, and the pair of hook portions 52 are integrally formed from a translucent synthetic resin such as acrylic resin or polycarbonate resin. However, the cover body 50, the pair of projecting walls 51, and the pair of extending portions 53 may be formed from a translucent material other than synthetic resin, for example, inorganic glass such as quartz glass.

[0056] The pair of cover ends 54 are formed in a semicircular shape in a plan view from the same translucent material as the cover body 50. The pair of cover ends 54 are attached, one to each end in the longitudinal direction of the cover body 50. In other words, both ends in the longitudinal direction of the cover body 50 are closed by the cover ends 54.

[0057] The cover 5 accommodates the support member 3 between a pair of protruding walls 51, and is attached to the support member 3 by hooking the hook portions 52 provided at the upper ends of the pair of protruding walls 51 onto the tips (upper ends) of the pair of side plates 31 of the support member 3 (see Figure 8).

[0058] The pair of extensions 53 are configured to cover at least a part of the portion of the first surface 30A of the support portion 30 of the support member 3 that is exposed to the outside of the light source module 1 (see FIG. 8).

[0059] Each extension portion 53 has a main piece 530, a connecting piece 531, and a side piece 532 (see FIG. 8). The connecting piece 531 is formed in a rectangular flat plate shape and protrudes inward from both ends of the cover body 50 in the short direction along the longitudinal direction of the cover body 50. The main piece 530 is formed in a V-shape when viewed in the longitudinal direction and protrudes inward from the tip of the connecting piece 531 along the longitudinal direction of the cover body 50. The side piece 532 is formed in a rectangular flat plate shape and protrudes upward from the tip of the main piece 530 along the longitudinal direction of the cover body 50. Note that the upper end of the side piece 532 comes into contact with the first surface 30A of the support portion 30 of the support member 3 when the cover 5 is attached to the support member 3 (see FIG. 8).

[0060] Here, the cover main body 50 and the cover end 54 are configured to diffuse light (illumination light) emitted from the light source module 1. Specifically, the cover main body 50 and the cover end 54 (or the entire cover 5) are formed of a synthetic resin with a light-diffusing filler, thereby imparting light diffusion properties to the cover main body 50 and the cover end 54. Most of the light emitted from the light source module 1 (light source 10) enters the cover main body 50 and the cover end 54 from their inner surfaces, is diffused by the filler, and then exits the cover 5 from at least a portion of the outer surfaces of the cover main body 50 and the cover end 54. However, some of the light emitted from the light source module 1 is reflected by the inner surfaces of the cover main body 50 and the cover end 54 and returns toward the support member 3. Some of the light reflected by the inner surfaces of the cover main body 50 and the cover end 54 is reflected by the surfaces (lower surfaces) of the extension portions 53 of the cover 5 and then passes through the cover main body 50 and the cover end 54. However, a part of the light emitted from the light source module 1 may be directly reflected by the surface (lower surface) of each extension portion 53.

[0061] Here, the extension portion 53 is preferably formed so that the reflectivity of its surface (lower surface) to visible light is higher than the reflectivity of the inner surface of the cover body 50 to visible light. For example, when the extension portion 53 and the cover body 50 are integrally formed by two-color molding, it is preferable that the type or amount of filler filled in the synthetic resin forming the extension portion 53 is different from the type or amount of filler filled in the synthetic resin forming the cover body 50. Alternatively, the surface (lower surface) of the extension portion 53 may be formed by two-layer two-color molding so that it has a higher reflectivity to visible light than the back surface (upper surface) of the extension portion 53. In other words, a first layer including the back surface (upper surface) of the extension portion 53 may be formed of a synthetic resin filled with the same type and amount of filler as the cover body 50, and a second layer including the surface (lower surface) of the extension portion 53 may be formed of a synthetic resin filled with a different type of filler than the cover body 50, or the same type but in a different amount. Alternatively, the reflectance for visible light may be increased by applying paint to the surface of the extension 53, which is made of the same synthetic resin as the cover body 50. Thus, by covering the protrusion 34 of the support member 3 with the extension 53 of the cover 5, the light source unit A1 can improve the efficiency (extraction efficiency) of extracting light emitted from the light source module 1 to the outside of the cover 5.

[0062] (2-3) Mounting the light source module to the support member The following describes the attachment of the light source module 1 to the support member 3. Hereinafter, the direction in which each of the light source module 1 and the support member 3 extends will be referred to as the "first direction D1 (front-rear direction)," the direction perpendicular to the first direction D1 and along the support member 30 will be referred to as the "second direction D2 (left-right direction)," and the direction perpendicular to both the first direction D1 and the second direction D2 will be referred to as the "third direction D3 (up-down direction)." The first direction D1, the second direction D2, and the third direction D3 do not need to be strictly perpendicular to each other, as long as this does not impair the effects of the present disclosure. The arrows indicating "D1," "D2," and "D3" in the drawings are not intended to define the directions of the light source unit A1 and the lighting fixture B1 during use, but are merely used to facilitate understanding of the description and are not substantial. In particular, the arrow indicating "D1" in the drawings has a "+" at one end and a "-" at the other end. "+" means "front" and "-" means "rear."

[0063] 18 to 25, the configurations of the light source module 1, the support member 3, and the power supply unit 2 for mounting the light source module 1 to the support member 3 will be described first, and then a specific mounting method will be described.

[0064] (2-3-1) Light source module As described above, the light source module 1 is elongated along the first direction D1 and includes the light source 10 and the substrate 11. In this manner, the first direction D1 is the longitudinal direction of the light source module 1. Note that the light source module 1 does not have to be elongated.

[0065] The substrate 11 has a mounting surface 11A and a non-mounting surface 11B (see FIG. 25). The mounting surface 11A is the surface (bottom surface) on which the light source 10 is mounted. The non-mounting surface 11B is the surface (top surface) opposite the mounting surface 11A, and is a substantially flat surface. Note that FIG. 25 is shown upside down.

[0066] Furthermore, the light source module 1 has recesses 14 (see FIG. 18). Specifically, the substrate 11 has the recesses 14. In the substrate 11, the recesses 14 are open on both sides in the second direction D2. A plurality of recesses 14 are provided on each side of the substrate 11 in the second direction D2, but this is not limiting.

[0067] (2-3-2) Support member As described above, the support member 3 supports the light source module 1 and is elongated along the first direction D1. In this manner, the first direction D1 is also the longitudinal direction of the support member 3. Note that the support member 3 does not have to be elongated.

[0068] The support member 3 includes a support portion 30 and a plurality of receiving portions 36 (see FIG. 18).

[0069] The support portion 30 has a first surface 30A and a second surface 30B (see FIG. 25). The first surface 30A is a substantially flat surface that faces the non-mounting surface 11B of the substrate 11. The second surface 30B is the surface opposite to the first surface 30A.

[0070] The plurality of receiving portions 36 receive the part 15 of the light source module 1 that moves in a predetermined direction along the support portion 30 (see FIGS. 18 and 19). In the following description, the forward direction in the first direction D1 is referred to as the "predetermined direction," and the rearward direction in the first direction D1 is referred to as the "opposite direction to the predetermined direction." In this way, the predetermined direction and the opposite direction to the predetermined direction are both directions that are included in the first direction D1.

[0071] The plurality of receiving portions 36 are located on both sides of the light source module 1 in the second direction D2 (see FIG. 19). That is, the pair of left and right receiving portions 36 face each other with the light source module 1 in between.

[0072] The plurality of receiving portions 36 are aligned along the first direction D1. The receiving portions 36 correspond to the recesses 14 of the substrate 11.

[0073] As shown in Fig. 23, each of the multiple receiving portions 36 is bag-shaped or pocket-shaped. Specifically, the receiving portion 36 has a first opening 36a and a second opening 36b. Note that Fig. 23 shows one of a pair of left and right receiving portions 36.

[0074] The first opening 36a is open along the first direction D1 and is located at the boundary between the inside and outside of the receiving portion 36 in the second direction D2.

[0075] The first opening 36a is located on the light source module 1 side. That is, of the pair of left and right receiving portions 36, the first opening 36a of the left receiving portion 36 opens to the right, and the first opening 36a of the right receiving portion 36 opens to the left. In this way, the first openings 36a of the pair of left and right receiving portions 36 face each other.

[0076] The second opening 36b is continuous with the first opening 36a, that is, the second opening 36b is spatially connected to the first opening 36a.

[0077] The second opening 36b is open along the second direction D2 and is located at the boundary between the inside and outside of the receiving portion 36 in the first direction D1.

[0078] The second openings 36b of the multiple receiving portions 36 are open in the same direction. That is, the second openings 36b are open in the direction opposite to the predetermined direction (rearward in the first direction D1). In other words, the second openings 36b are located on the side that the part 15 of the light source module 1 approaches when the light source module 1 moves in the predetermined direction (forward in the first direction D1).

[0079] Here, the part 15 of the light source module 1 is a corner 15a (see FIG. 18). The corner 15a is continuous with the recess .

[0080] As shown in FIG. 23, each of the plurality of receiving portions 36 has a first wall portion 361, a second wall portion 362, and a third wall portion 363.

[0081] The first wall portion 361 faces the first opening 36a.

[0082] The second wall portion 362 is continuous with the first wall portion 361. The second wall portion 362 faces the second opening portion 36b.

[0083] The third wall portion 363 is continuous with the first wall portion 361 and the second wall portion 362. The third wall portion 363 is spaced apart from the first surface 30A of the support portion 30 along the third direction D3. The third wall portion 363 is approximately parallel to the first surface 30A.

[0084] The first wall portion 361, the second wall portion 362, and the third wall portion 363 are integrally formed. A part 15 of the light source module 1 is inserted into a space surrounded by the first wall portion 361, the second wall portion 362, and the third wall portion 363 (inside the receiving portion 36). The receiving portion 36 can be formed by cutting and raising from the support portion 30. In this case, as shown in FIG. 23 , a through hole 364 is formed in the support portion 30. The through hole 364 penetrates the support portion 30 in the third direction D3. The through hole 364 faces the third wall portion 363 in the third direction D3. The through hole 364 does not have to exist. An example of a case where the through hole 364 does not exist is a case where the receiving portion 36 and the support portion 30 are formed of separate members, and the receiving portion 36 is attached to the support portion 30.

[0085] The support member 3 further includes a restricting portion 33 (see FIG. 24). The restricting portion 33 restricts movement of the light source module 1. More specifically, the restricting portion 33 restricts movement of the light source module 1 after the light source module 1 is attached to the support member 3. Specifically, after the light source module 1 is attached to the support member 3, the restricting portion 33 is cut and raised from the support portion 30 and hooked onto the inner surface of the recess 14 of the substrate 11.

[0086] (2-3-3) Installation method The light source module 1 is attached to the support member 3 as follows.

[0087] 20 and 21 , the light source module 1 is placed on the support member 3. Specifically, the non-mounting surface 11B of the substrate 11 is placed on the first surface 30A of the support portion 30. At this time, the receiving portion 36 passes through the recess 14 along the third direction D3 and does not interfere with the substrate 11.

[0088] Next, the light source module 1 is slid relative to the support member 3 in a predetermined direction (forward in the first direction D1). This causes a portion 15 (corner 15a) of the light source module 1 to be inserted into the receiving portion 36 through the first opening 36a and the second opening 36b of the receiving portion 36. When the light source module 1 is further slid in the predetermined direction (forward in the first direction D1), the portion 15a of the light source module 1 abuts against the second wall portion 362, restricting the position of the light source module 1. This means that the light source module 1 cannot be slid any further in the predetermined direction (forward in the first direction D1), and this indicates the completion of the installation work. Then, as shown in FIG. 22, the portion 15 (corner 15a) of the light source module 1 is inserted into the receiving portion 36. As a result, the light source module 1 is attached to the first surface 30A of the support member 30.

[0089] In this way, the through-hole 364 of the support part 30 overlaps with the substrate 11 of the light source module 1, thereby blocking the through-hole 364. This makes it possible to prevent foreign matter such as insects and dust from entering the interior of the lighting device A1 through the through-hole 364. Because the receiving part 36 is not simply a claw cut and raised from the support part 30, there is almost no room for foreign matter such as insects and dust to enter through the through-hole 364.

[0090] Thereafter, the restricting portion 33 is cut and raised from the support portion 30, thereby preventing the substrate 11 from shifting in the direction opposite to the predetermined direction (rearward in the first direction D1).

[0091] The dimensions of the receiving portion 36 will be described below.

[0092] 25, the internal height H10 of the receiving portion 36 in the third direction D3 is equal to or greater than the thickness T of the portion 15 of the light source module 1. Here, the internal height H10 of the receiving portion 36 refers to the distance in the third direction D3 between the first surface 30A of the support portion 30 and the inner surface of the third wall portion 363. The thickness T of the portion 15 of the light source module 1 refers to the thickness of the substrate 11 (the distance between the mounting surface 11A and the non-mounting surface 11B).

[0093] 21, the outer length L1 of the receiving portion 36 in the first direction D1 is equal to or shorter than the length L141 of the recess 14. Here, the outer length L1 of the receiving portion 36 means the distance between the second opening 36b and the outer surface of the second wall portion 362 in the first direction D1. If the second wall portion 362 is inclined, it means the maximum distance between the second opening 36b and the outer surface of the second wall portion 362 as viewed from the third direction D3. The length L141 of the recess 14 means the distance between the inner surfaces of opposing recesses 14 in the first direction D1.

[0094] 24, the internal length L2 of the receiving portion 36 in the second direction D2 is the same as the length L142 of the recess 14. Here, the internal length L2 of the receiving portion 36 means the distance in the second direction D2 between the first opening 36a and the inner surface of the first wall portion 361. The length L142 of the recess 14 (the depth of the recess 14) means the distance in the second direction D2 between the outermost end face of the substrate 11 and the inner surface of the recess 14.

[0095] Additionally, in the third direction D3, the height H20 of the outside of the receiving portion 36 is equal to or less than the height H30 of the light source module 1. Here, the height H20 of the outside of the receiving portion 36 refers to the distance, in the third direction D3, between the first surface 30A of the support portion 30 and the outer surface of the third wall portion 363. The height H30 of the light source module 1 refers to the maximum distance, in the third direction D3, between the first surface 30A of the support portion 30 and the light source 10.

[0096] (2-4) Installation of lighting fixtures The lighting fixture B1 is installed on the ceiling of the room in the following procedure.

[0097] First, the installation worker pulls the power cable 92, which has been pulled out from the ceiling S1, into the housing 60 through the power supply hole 64 at the center of the fixture body 6 (see FIG. 2). The worker also pulls the signal line 96, which has been pulled out from the ceiling S1, into the housing 60 through the power supply hole 64 at the longitudinal end of the fixture body 6 (see FIG. 2). After that, the worker inserts two suspension bolts 90 provided in the ceiling S1 into a pair of mounting holes 63 in the fixture body 6, and attaches the fixture body 6 to the ceiling S1 by tightening nuts 91 via washers (not shown) onto the suspension bolts 90 inserted into each mounting hole 63. Then, the worker electrically connects the power cable 92, which has been pulled out from the central power supply hole 64, to the terminal block 65.

[0098] Next, as a preparatory step for attaching the light source unit A1 to the fixture body 6, the worker fits the arm portions 381 of each of the two second hooking members 38 into the recesses 3930 of the temporary holding portion 393 of the mounting bracket 39 (see FIG. 13 ). At this time, the inner wall of the recess 3930 in the temporary holding portion 393 is inclined toward the recess 3930, so the arm portions 381 can be guided toward the recess 3930. Therefore, the light source unit A1 can improve the workability of the work of holding the arm portions 381 in the temporary holding portion 393. However, the arm portions 381 of each of the two second hooking members 38 may be fitted into the recesses 3930 of the temporary holding portion 393 of the mounting bracket 39 at the time of shipment. In this case, the above preparatory step by the worker can be omitted, thereby reducing the worker's workload and improving workability.

[0099] By holding the arm portion 381 in the temporary holding portion 393, the space in the height direction between the upper end of the wall portion (the side plate 31 of the support member 3 and the protruding wall 51 of the cover 5) of the light source unit A1 and the arm portion 381 increases (see height H1 in FIG. 10 and height H2 in FIG. 11). Furthermore, the worker slides the hook piece 372 of the first hook member 37 to a position where the rising piece 371 abuts against the protruding plate 3911 of the mounting bracket 39 (see FIG. 13).

[0100] Then, the worker inserts the hooking pieces 372 of the pair of first hooking members 37 of the light source unit A1 into the pair of hooking holes 600 of the fixture body 6 and hooks the tip portion of each hooking piece 372 onto the edge of each hooking hole 600 in the side wall of the accommodating section 60, thereby temporarily hanging the light source unit A1 on the fixture body 6 (see FIG. 14 ). In this temporarily hanging state, the worker electrically connects the power connector 94 at the tip of the power line 93 connected to the terminal block 65 to the power connector 23 of the power supply unit 2, and electrically connects the signal line 96 to the communication unit 4.

[0101] Next, the worker inserts his or her fingers into the space between the arm portion 381 of the second hooking member 38 and the protruding wall 51, pushes up the arm portion 381 with the fingers, and hooks the tips of the arm portion 381 onto the two hooking fittings 601 of the fixture main body 6, one by one (see FIG. 15 ). Then, the worker lifts the light source unit A1 while rotating it in the short direction, using the hook piece 372 that is abutting on the edge of the hooking hole 600 as a fulcrum. Then, the deformed second hooking member 38 returns to its original state, and the light source unit A1 is held in the fixture main body 6 with the power supply unit 2 and the communication unit 4 accommodated in the accommodation section 60 by the first hooking member 37 hooked onto the edge of the hooking hole 600 and the second hooking member 38 hooked onto the hooking fitting 601 (see FIGS. 1 and 8 ).

[0102] The lighting fixture B1 is installed on the ceiling using the above procedure.

[0103] Here, when lighting fixture B1 is installed on the ceiling, the two hanging bolts 90, nuts 91, and washers (not shown) are all located between the power supply unit 2 and the communication unit 4 of light source unit A1 in the longitudinal direction of fixture body 6 (see FIGS. 6 and 7). In other words, lighting fixture B1 has the advantage that the height dimension can be shortened (thinner thickness) because the two hanging bolts 90, nuts 91, and washers (not shown) do not overlap with the power supply unit 2 and the communication unit 4 in the vertical direction.

[0104] Furthermore, in the fixture body 6, the two hooking fittings 601 are disposed near the mounting hole 63. This shortens the distance between the position where the tightening force of the nut 91 is applied to the fixture body 6 (around the mounting hole 63 of the accommodation section 60) and the position where the spring force of the second hooking member 38 is applied to the fixture body 6 (the position of the hooking fittings 601). As a result, the lighting fixture B1 can suppress bending of the fixture body 6 along the longitudinal direction, and can reduce the gap between the fixture body 6 and (the cover 5 of) the light source unit A1.

[0105] Furthermore, multiple lighting fixtures B1 may be installed on the ceiling S1 in a row with the end plates 62 of their respective fixture bodies 6 butted against each other. In this case, power cables 95 are routed between adjacent lighting fixtures B1 through holes formed by cutting out the knockout portions 620 of the end plates 62. That is, two power cables 95 are electrically connected to the terminal block 65 of one lighting fixture B1 (see FIG. 16). In this case, each power cable 95 is held by a cable holding portion 602 cut and raised from the bottom surface (lower surface) of the housing portion 60 (see FIG. 16). However, the housing portion 60 does not necessarily have to have the cable holding portion 602. Here, the light source unit A1 has the power supply unit 2 disposed near one end of the support member 3 in the short direction (see FIG. 8). As a result, the light source unit A1 and the lighting fixture B1 have sufficient space to accommodate the power line 93 connecting the terminal block 65 and the power supply unit 2, and the power cable 95 for the feed wiring, thereby improving the workability of the wiring work.

[0106] (2-5) Advantages of the embodiment According to the lighting device A1 of this embodiment, as shown in FIGS. 18 to 22, the light source module 1 can be attached to the support member 3 simply by overlapping the light source module 1 on the support member 3 and sliding it. In this way, there is no need to form a crimping portion on the support member 3 after overlapping the light source module 1 on the support member 3, which improves assembly. Furthermore, if a crimping portion is formed on the support member 3, the width of the substrate 11 needs to be increased to ensure an insulation distance between the crimping portion and the printed wiring formed on the surface of the substrate 11. In contrast, in the embodiment, no crimping portion is formed, so the width of the substrate 11 can be narrowed.

[0107] In addition, in the lighting device A1 of the embodiment, the receiving portion 36 has a first opening 36a and a second opening 36b, making it easier to insert a part 15 (corner portion 15a) of the light source module 1 into the receiving portion 36 through the first opening 36a and the second opening 36b.

[0108] In the lighting device A1 according to the embodiment, the receiving portion 36 has the first wall portion 361, which can restrict movement of the light source module 1 along the second direction D2. Furthermore, the receiving portion 36 has the second wall portion 362, which can restrict movement of the light source module 1 along the first direction D1.

[0109] Furthermore, in the lighting device A1 according to the embodiment, the position of the light source module 1 is restricted by the part 15 (corner 15a) of the light source module 1 abutting against the second wall 362. This prevents the part 15 of the light source module 1 from slipping out of the receiving portion 36.

[0110] Furthermore, in the lighting device A1 according to this embodiment, the part 15 of the light source module 1 is a corner 15a that continues to the recess 14. Therefore, the receiving part 36 can easily hold the light source module 1.

[0111] Furthermore, in the lighting device A1 according to this embodiment, the corner portion 15a is inserted into the receiving portion 36 through the first opening 36a and the second opening 36b. Therefore, even if a through-hole 364 is present in the receiving portion 36, as shown in FIG. 23 , for example, the through-hole 364 can be blocked by the part 15 of the light source module 1. This prevents foreign objects such as insects and dust from entering the lighting device A1 through the through-hole 364. To further enhance the insect-proofing effect, for example, a separate member may be disposed on the second surface 30B of the support portion 30 of the support member 3 to block the through-hole 364. Specifically, the through-hole 364 may be blocked by attaching insect-proof tape or the like to the second surface 30B.

[0112] 25 , in the lighting device A1 according to the embodiment, the height H10 of the inside of the receiving portion 36 is equal to or greater than the thickness T of the part 15 of the light source module 1. This makes it easier to insert the part of the light source module 1 into the receiving portion 36.

[0113] 21 , the outer length L1 of the receiving portion 36 is equal to or less than the length L141 of the recess 14. Therefore, when the light source module 1 is placed on the support member 3, the receiving portion 36 passes through the recess 14 along the third direction D3 and does not interfere with the substrate 11.

[0114] 24, the inner length L2 of the receiving portion 36 is the same as the length L142 of the recess 14. Therefore, rattling of the light source module 1 relative to the support member 3 along the second direction D2 can be suppressed.

[0115] Furthermore, in the lighting device A1 according to the embodiment, the support member 3 includes the restricting portion 33, which prevents the light source module 1 from coming off. That is, even if a force acts on the light source module 1 in the opposite direction to that applied when the light source module 1 is attached to the support member 3 after the light source module 1 is attached to the support member 3, the restricting portion 33 can prevent the light source module 1 from sliding due to the force.

[0116] 25, the height H20 of the outside of the receiving portion 36 is equal to or less than the height H30 of the light source module 1. If the height H20 of the outside of the receiving portion 36 exceeds the height H30 of the light source module 1, the light from the light source module 1 (light source 10) may be blocked by the receiving portion 36, and the shadow of the receiving portion 36 may be reflected on the cover 5. Therefore, the height H20 of the outside of the receiving portion 36 is set equal to or less than the height H30 of the light source module 1. Therefore, the shadow of the receiving portion 36 may be prevented from being reflected on the cover 5.

[0117] Furthermore, according to the lighting fixture B1 of this embodiment, the first hooking member 37 is hooked onto the first hooked portion, thereby improving the workability of attaching the lighting device A1 to the fixture body 6.

[0118] (3) Modifications of the embodiment Next, several modified examples of the light source unit A1 and lighting fixture B1 according to the embodiment will be described. However, the basic configuration of the light source unit A1 and lighting fixture B1 of each modified example described below is the same as the basic configuration of the light source unit A1 and lighting fixture B1 according to the embodiment. Therefore, the same reference numerals will be used to designate components that are common or substantially common to the basic configuration of the light source unit A1 and lighting fixture B1 according to the embodiment, and illustrations and descriptions thereof will be omitted as appropriate. Note that "substantially common configuration" means a configuration that is slightly different in shape, size, etc., but has the same function. Furthermore, each modified example described below can be appropriately combined with the embodiment and other modified examples.

[0119] (3-1) Variation 1 26, in the receiving portion 36 of Modification 1, the third wall portion 363 is inclined so as to move away from the first surface 30A from the positive side to the negative side in the first direction D1. That is, the height H101 of the second opening 36b is greater than the height H102 of the second wall portion 362 inside the receiving portion 36.

[0120] In this way, because the second opening 36b is wider, it becomes easier to insert the part 15 of the light source module 1 (see FIG. 24) into the receiving portion 36. Furthermore, when the part 15 of the light source module 1 is inserted deep into the receiving portion 36, the position of the board 11 is determined in the third direction D3, reducing misalignment and wobble. Therefore, even if the light source unit A1 vibrates, the board 11 is less likely to resonate and less likely to generate noise. Furthermore, because the board 11 is in close contact with the support member 3, heat dissipation is improved.

[0121] (3-2) Variation 2 As shown in Figure 27, the receiving portion 36 of variant 2 is similar to the receiving portion 36 of variant 1 in that the height H101 of the second opening 36b is higher than the height H102 of the second wall portion 362 inside the receiving portion 36.

[0122] The receiving portion 36 of Modification 2 differs from the receiving portion 36 of Modification 1 in that the third wall portion 363 includes a non-inclined portion (a portion parallel to the first surface 30A). In Modification 2, the surface where the part 15 (see FIG. 24) of the light source module 1 and the receiving portion 36 come into close contact is wider than in Modification 1, so that the support member 3 can stably support the light source module 1 even if there is dimensional variation in the parts, etc.

[0123] (3-3) Variation 3 28 shows a pair of left and right receiving portions 36 of Modification 3. In Modification 3, the first wall portion 361 of the left receiving portion 36 is inclined leftward from the positive side to the negative side in the first direction D1. On the other hand, the first wall portion 361 of the right receiving portion 36 is inclined rightward from the positive side to the negative side in the first direction D1. As a result, the width W10 between the first wall portion 361 on the negative side in the first direction D1 of the pair of left and right receiving portions 36 is wider than the width W20 between the first wall portion 361 on the positive side in the first direction D1.

[0124] As described above, because the width W10 is wider than the width W20, it is easier to insert the portion 15 of the light source module 1 into the receiving portion 36. Furthermore, when the portion 15 of the light source module 1 is inserted deep into the receiving portion 36, the position of the board 11 is determined in the third direction D3, reducing misalignment and wobble. Therefore, even if the light source unit A1 vibrates, the board 11 is less likely to resonate and less likely to generate noise. Furthermore, because the board 11 is in close contact with the support member 3, heat dissipation is improved.

[0125] (3-4) Variation 4 29 shows a pair of left and right receiving portions 36 of Modification 4. The pair of left and right receiving portions 36 of Modification 4 is common to the pair of left and right receiving portions 36 of Modification 3 in that the width W10 is wider than the width W20.

[0126] The pair of left and right receiving portions 36 of Modification 4 differs from the pair of left and right receiving portions 36 of Modification 3 in that the first wall portion 361 includes a non-inclined portion (a portion parallel to the first direction D1). In Modification 4, the surface where the part 15 of the light source module 1 and the receiving portions 36 come into close contact is wider than in Modification 3, so that the support member 3 can stably support the light source module 1 even if there is dimensional variation in the parts, etc.

[0127] (3-5) Other Modifications In the embodiment of the present disclosure, the restricting portion 33 is provided near the center of the support member 3 in the longitudinal direction, but may be provided near an end portion of the support member 3 in the longitudinal direction.

[0128] When the light source module 1 has a plurality of substrates 11 as in the embodiment of the present disclosure, it is desirable that at least one restricting portion 33 be provided on each substrate 11. This makes it possible to reduce stress on each substrate 11 when the plurality of substrates 11 are misaligned in the longitudinal direction.

[0129] In the embodiment of the present disclosure, the restricting portions 33 are arranged at two locations along the second direction D2 (left-right direction) of the support member 3 (see FIG. 21), but may be arranged at only one location. However, arranging the restricting portions 33 at two locations along the second direction D2 (left-right direction) of the support member 3 makes it more difficult for the substrate 11 to come off when a force is applied to the substrate 11 in the left-right direction.

[0130] In the embodiment of the present disclosure, the regulating portion 33 is formed by cutting and raising from the support portion 30, but it may also be an elastic piece from the support portion 30, or a separate member from the support portion 30 (for example, attached by a screw).

[0131] In the embodiment of the present disclosure, the shape of the support member 3 is as shown in Figures 2 and 8, but is not limited to such shapes. The shape of the support member 3 may be, for example, a U-shape, a V-shape with both ends closed from the U-shape, an inverted V-shape, an L-shape, an M-shape, an I-shape, or the like when viewed in the longitudinal direction. Note that the first surface 30A of the support portion 30 of the support member 3, to which the substrate 11 is attached, may be a substantially flat surface.

[0132] (4) Aspects As is clear from the above embodiments, the present disclosure includes the following aspects. In the following, reference numerals are given in parentheses only to clarify the correspondence with the embodiments.

[0133] The first aspect is an illumination device (A1) comprising a light source module (1) and a support member (3) that supports the light source module (1). The support member (3) includes a support portion (30) and a plurality of receiving portions (36) that receive a portion (15) of the light source module (1) that moves in a predetermined direction along the support portion (30). The plurality of receiving portions (36) are positioned on both sides of the light source module (1) in a second direction (D2) that is perpendicular to a first direction (D1) that includes the predetermined direction and that is a direction along the support portion (30), and are lined up along the first direction (D1).

[0134] According to this embodiment, there is no need to form a caulking portion on the support member 3, which improves the ease of assembly.

[0135] The second aspect is the lighting device (A1) based on the first aspect. In the second aspect, each of the plurality of receiving portions (36) has a first opening (36a) that opens along a first direction (D1) and exists on the light source module (1) side, and a second opening (36b) that is continuous with the first opening (36a), opens along a second direction (D2), and exists on the side that a part (15) of the light source module (1) approaches when the light source module (1) moves in a predetermined direction.

[0136] According to this embodiment, the part 15 of the light source module 1 can be easily inserted into the receiving portion 36 through the first opening 36a and the second opening 36b.

[0137] The third aspect is the lighting device (A1) based on the second aspect. In the third aspect, each of the plurality of receiving portions (36) has a first wall portion (361) facing the first opening (36a) and a second wall portion (362) continuous with the first wall portion (361) and facing the second opening (36b).

[0138] According to this aspect, the first wall portion (361) can restrict movement of the light source module (1) along the second direction (D2), and the second wall portion (362) can restrict movement of the light source module (1) along the first direction (D1).

[0139] The fourth aspect is the lighting device (A1) based on the third aspect. In the fourth aspect, a part (15) of the light source module (1) abuts against the second wall portion (362), thereby restricting the position of the light source module (1).

[0140] According to this embodiment, it is possible to prevent the part (15) of the light source module (1) from slipping out of the receiving portion (36).

[0141] A fifth aspect is an illumination device (A1) based on any one of the first to fourth aspects. In the fifth aspect, the light source module (1) has a recess (14) that opens on both sides in the second direction (D2). A part (15) of the light source module (1) is a corner (15a) that continues to the recess (14).

[0142] According to this embodiment, the receiving portion (36) can easily hold the light source module (1).

[0143] A sixth aspect is the lighting device (A1) based on the fifth aspect. In the sixth aspect, the corner portion (15a) is inserted into each of the plurality of receiving portions (36) through the first opening (36a) and the second opening (36b).

[0144] According to this embodiment, even if a through-hole (364) exists inside the receiving portion (36), the through-hole (364) can be blocked by a part (15) of the light source module (1).

[0145] A seventh aspect is a lighting device (A1) based on the fifth or sixth aspect. In the seventh aspect, in a third direction (D3) perpendicular to both the first direction (D1) and the second direction (D2), the internal height (H10) of each of the plurality of receiving portions (36) is equal to or greater than the thickness (T) of the portion (15) of the light source module (1). In the first direction (D1), the external length (L1) of each of the plurality of receiving portions (36) is equal to or less than the length (L141) of the recess (14). In the second direction (D2), the internal length (L2) of each of the plurality of receiving portions (36) is the same as the length (L142) of the recess (14).

[0146] According to this embodiment, it is possible to prevent the light source module (1) from rattling relative to the support member (3) along the second direction (D2).

[0147] An eighth aspect is the lighting device (A1) based on any one of the first to seventh aspects. In the eighth aspect, the support member (3) further includes a restricting portion (33) that restricts movement of the light source module (1).

[0148] According to this embodiment, it is possible to prevent the light source module (1) from coming off. That is, even if a force acts on the light source module (1) in the direction opposite to that when the light source module (1) is attached to the support member (3) after the light source module (1) is attached to the support member (3), the restricting portion (33) can prevent the light source module (1) from sliding due to the force.

[0149] A ninth aspect is an illumination device (A1) based on any one of aspects 1 to 8. In the ninth aspect, in a third direction (D3) perpendicular to both the first direction (D1) and the second direction (D2), an outer height (H20) of each of the plurality of receiving portions (36) is equal to or less than a height (H30) of the light source module (1).

[0150] According to this embodiment, it is possible to prevent the shadow of the receiving portion (36) from being reflected on the cover (5).

[0151] A tenth aspect is a lighting fixture (B1) that includes a lighting device (A1) based on any one of the first to ninth aspects and a fixture body (6) that holds the lighting device (A1).

[0152] According to this aspect, by hooking the first hooking member (37) onto the first hooked portion, the workability of attaching the lighting device (A1) to the fixture body (6) can be improved. [Explanation of symbols]

[0153] A1 Lighting Equipment B1 Lighting fixture 1 Light Source Module 3 Support member 6. Instrument body 14 Recess 15 part 15a Corner 30 Support part 33 Regulatory Department 36 Receptacle 36a 1st opening 36b 2nd opening 361 1st wall section 362 2nd wall section D1 1st direction D2 2nd direction D3 Third direction H10 Internal height of receiving part H20 External height of receiving part H30 Light source module height T Thickness of part of the light source module L1 Outer length of receiving part L2: Internal length of receiving part L141 Recess length (first direction) L142 Recess length (second direction)

Claims

1. a light source module; a support member for supporting the light source module, The support member is A support part; a plurality of receiving portions that receive a part of the light source module that moves in a predetermined direction along the support portion; the plurality of receiving portions are positioned on both sides of the light source module in a second direction that is perpendicular to a first direction including the predetermined orientation and along the support portion, and are aligned along the first direction; Lighting equipment.

2. Each of the plurality of receiving portions is a first opening that opens along the first direction and is located on the light source module side; a second opening that is continuous with the first opening, opens along the second direction, and exists on a side to which a part of the light source module approaches when the light source module moves in the predetermined direction; The lighting device according to claim 1 .

3. Each of the plurality of receiving portions is a first wall portion facing the first opening; a second wall portion that is continuous with the first wall portion and faces the second opening portion, 3. The lighting device according to claim 2.

4. a position of the light source module is restricted by a part of the light source module contacting the second wall portion; 4. The lighting device according to claim 3.

5. the light source module has a recess that opens on both sides in the second direction, a part of the light source module being a corner portion connected to the recess; The lighting device according to any one of claims 2 to 4.

6. The corner portion is inserted into each of the plurality of receiving portions through the first opening and the second opening.

6. The lighting device according to claim 5.

7. In a third direction orthogonal to both the first direction and the second direction, an internal height of each of the plurality of receiving portions is equal to or greater than a thickness of a portion of the light source module; In the first direction, an outer length of each of the plurality of receiving portions is equal to or less than a length of the recessed portion, In the second direction, the length of the interior of each of the plurality of receiving portions is the same as the length of the recessed portion.

6. The lighting device according to claim 5.

8. The support member further includes a restricting portion that restricts movement of the light source module. The lighting device according to any one of claims 1 to 4.

9. In a third direction perpendicular to both the first direction and the second direction, an outer height of each of the plurality of receiving portions is equal to or less than a height of the light source module. The lighting device according to any one of claims 1 to 4.

10. The lighting device according to any one of claims 1 to 4, and a fixture body that holds the lighting device. Lighting fixtures.

Images