lighting fixtures

Abstract

To protect a light distribution control member against shock while improving workability of assembly work.SOLUTION: A luminaire A1 comprises a light source unit 2, an appliance body supporting the light source unit 2, an LED module 3, and a light distribution control member 4 for controlling the distribution of light emitted from the LED module 3. The light source unit 2 comprises a fitting member 5 comprising a fitting surface 50 fitted with the LED module 3 and the light distribution control member 4, and a screw 52 screwed into a screw hole 51 provided in the fitting surface 50. The light source unit 2 comprises a supporting member 8 interposed between the screw 52 and the LED module 3 and supporting the LED module 3. The supporting member 8 comprises a contact part 83 capable of contacting the light distribution control member 4 when the light distribution control member 4 is deformed.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a lighting fixture, and more particularly to a lighting fixture having a light distribution control member for controlling light distribution. [Background technology]

[0002] As a conventional example, a floodlight (lighting fixture) described in Patent Document 1 is exemplified. The conventional floodlight comprises a box-shaped housing, a light source unit disposed in the housing, and optical components that control the distribution of light emitted from the light source unit. The housing has an opening at the front, and a housing space that houses the light source unit and the optical components is formed. The light source unit is configured by mounting a plurality of light-emitting elements (LEDs) on the surface of a substrate. The optical components include a lens unit. The substrate of the light source unit and the optical components are fastened together with mounting screws and attached to the housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-243033 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the lighting fixture described in Patent Document 1 requires the work of separately attaching two parts to the housing: an optical component (light distribution control member) that controls light distribution, and a front cover that closes the opening on the front side of the housing. On the other hand, if the optical component is configured integrally with the front cover, the optical component is exposed to the outside of the housing, and there is a possibility that the optical component will be subjected to an impact if an object hits it. If the optical component is subjected to an impact, there is a risk that the impact will cause problems such as deformation or breakage of the optical component (light distribution control member).

[0005] An object of the present disclosure is to provide a lighting fixture that can improve the workability of assembly work while protecting a light distribution control member from impact. [Means for solving the problem]

[0006] A lighting fixture according to one aspect of the present disclosure includes a light source unit and a fixture body that supports the light source unit. The light source unit includes an LED module, a light distribution control member that controls the distribution of light emitted from the LED module, and a mounting member having a mounting surface to which the LED module and the light distribution control member are attached. The light source unit includes a screw that is screwed into a threaded hole provided on the mounting surface, and a support member that is interposed between the screw and the LED module and supports the LED module. The support member has a contact portion that can come into contact with the light distribution control member when the light distribution control member is deformed. [Effects of the Invention]

[0007] The lighting fixture of the present disclosure has the advantage of being able to improve the workability of the assembly work while protecting the light distribution control member from impact. [Brief explanation of the drawings]

[0008] [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 a light source unit in the lighting fixture. [Figure 3] FIG. 3 is a front view of a light distribution control member in the light source unit. [Figure 4] FIG. 4 is a perspective view of the support member of the light source unit as viewed from the front. [Figure 5] FIG. 5 is a perspective view of the support member of the light source unit as viewed from behind. [Figure 6] 6A, 6B, and 6C are front, side, and rear views of the support member. [Figure 7] FIG. 7 is a cross-sectional view of a main part of the light source unit. DETAILED DESCRIPTION OF THE INVENTION

[0009] A lighting device according to an embodiment 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.

[0010] (1) Overview A lighting fixture A1 according to this embodiment includes a light source unit 2 and a fixture body 1 that supports the light source unit 2. The light source unit 2 includes an LED module 3 and a light distribution control member 4 that controls the distribution of light emitted from the LED module 3 (see FIG. 2). The light source unit 2 includes a mounting member 5 having a mounting surface 50 to which the LED module 3 and the light distribution control member 4 are attached, and a screw 52 that is screwed into a screw hole 51 provided in the mounting surface 50. The light source unit 2 includes a support member 8 that is interposed between the screw 52 and the LED module 3 and supports the LED module 3. The support member 8 has a contact portion 83 that can come into contact with the light distribution control member 4 when the light distribution control member 4 is deformed (see FIG. 7).

[0011] Here, in lighting fixture A1 according to this embodiment, light source unit 2 exposes light distribution control member 4 on the front (outer surface). In other words, light distribution control member 4 functions as both an optical component and a front cover as in conventional examples. Therefore, lighting fixture A1 according to this embodiment can improve the workability of assembly work by reducing the number of components compared to conventional examples.

[0012] Furthermore, lighting device A1 according to the embodiment has light distribution control member 4 exposed to the outside, and therefore, when installed in a sports stadium or the like, light distribution control member 4 may be subjected to an impact when hit by a ball used in the sport. However, lighting device A1 according to the embodiment can suppress deformation of light distribution control member 4 by contacting contact portion 83 of support member 8, even if an impact is applied to light distribution control member 4 and light distribution control member 4 is deformed. As a result, lighting device A1 according to the embodiment can protect light distribution control member 4 from impact while improving the ease of assembly.

[0013] (2) Details A lighting fixture A1 according to this embodiment (hereinafter simply referred to as lighting fixture A1) is a floodlight primarily used for illuminating (floodlighting) soccer stadiums, various sports fields, school playgrounds, etc. In the following description, unless otherwise specified, the up-down, front-back, left-right directions indicated by arrows in Fig. 1 are defined as the up-down, front-back, left-right directions of lighting fixture A1.

[0014] The lighting fixture A1 has two light source units 2 and a fixture body 1 that supports the two light source units 2 (see FIG. 1). However, the number of light source units 2 that the lighting fixture A1 has is not limited to two, and may be one, or three or more.

[0015] (2-1) Device body The device main body 1 has a pair of fixed bases 10 and an arm 11 (see FIG. 1). The pair of fixed bases 10 have the same shape and structure. The fixed bases 10 are made of die-cast aluminum and are formed in the shape of an isosceles triangle when viewed from the left and right in a plan view. Four screw insertion holes are formed in the fixed base 10 at the base of the isosceles triangle. Furthermore, a cylindrical receiving portion is formed in the fixed base 10 at the apex of the isosceles triangle, and a screw hole is formed in this receiving portion. Furthermore, one disc-shaped scale plate 12 is attached to each of the receiving portions of the pair of fixed bases 10.

[0016] The arm 11 is made of die-cast aluminum and is U-shaped in a plan view in the front-to-rear direction. The arm 11 has a fixing plate 110 and a pair of arm pieces 111. A circular fixing hole 1100 penetrates the fixing plate 110 approximately at the center, and a semicircular arc-shaped elongated hole 1101, centered on the fixing hole 1100, penetrates rearward of the fixing hole 1100. The fixing plate 110 is fixed to a lighting stand or the like with a bolt inserted into the fixing hole 1100 and a bolt inserted into the elongated hole 1101. Furthermore, by loosening the bolt inserted into the elongated hole 1101, the orientation of the arm 11 (the orientation of the optical axis of the light source unit 2) can be changed within a range of approximately 180 degrees.

[0017] A circular insertion hole penetrates the tip of the pair of arm pieces 111. A bolt 112 inserted into the insertion hole of the left arm piece 111 is screwed into a threaded hole in the receiving portion of the left fixed base 10. A bolt inserted into the insertion hole of the right arm piece 111 is screwed into a threaded hole in the receiving portion of the right fixed base 10. In other words, the arm 11 is connected to each of the pair of fixed bases 10 by two bolts 112, and supports the fixed bases 10 rotatably around each bolt 112 as an axis. Here, a scale of angles centered on the bolt 112 is displayed on a scale plate 12 attached to each fixed base 10, and the angle of the fixed base 10 relative to the arm 11 can be read from the scale (see Figure 1).

[0018] In addition, a wiring box 13 is integrally provided on the left arm piece 111 (see FIG. 1). The wiring box 13 includes a box body 130 formed in a hexagonal box shape, a lid 131 that covers the opening of the box body 130, and a terminal block. The terminal block is housed in the box body 130. The terminal block electrically connects a power cable that is drawn into the box body 130 to two output cables 20 (see FIG. 1). The power cable is a power supply path for DC power supplied from a power supply device installed in a location separate from the lighting fixture A1. In addition, the two output cables 20 are power supply paths for supplying DC power supplied via the power cable to the two LED modules 3.

[0019] (2-2) Light source unit The two light source units 2 have the same configuration. Each light source unit 2 includes two LED modules 3, one light distribution control member 4, an attachment member 5, a sealing member 6, a frame 7, and multiple support members 8 (see FIG. 2).

[0020] (2-2-1) LED module The two LED modules 3 have the same structure. The LED module 3 has a plurality of LEDs 30 and a substrate 31 on whose surface (front surface) the plurality of LEDs 30 are mounted (see FIG. 2). Each LED 30 is, for example, a packaged white LED for lighting. The substrate 31 is, for example, a metal-based substrate based on an aluminum plate. Since the substrate 31 is a metal-based substrate, heat generated by the plurality of LEDs 30 can be efficiently dissipated. The plurality of LEDs 30 are mounted on the surface of the substrate 31, aligned at equal intervals.

[0021] Furthermore, a plurality of (13 in the illustrated example) through holes 310 are provided in the substrate 31 (see FIG. 2). These through holes 310 are circular, and are arranged at the four corners, the center of each side, the center, and on the diagonal of the substantially square substrate 31.

[0022] A pair of connectors 32 are mounted in the center of one side on the front surface of the substrate 31. These connectors 32 are electrically connected in series or in series-parallel to the plurality of LEDs 30 via printed wiring formed on the surface of the substrate 31. In other words, the pair of connectors 32 are the positive and negative terminals of the LED module 3, and one end of the output cable 20 is electrically connected to each of them (see FIG. 2).

[0023] (2-2-2) Light distribution control member The light distribution control member 4 has lens portions 40 whose number is equal to the total number of LEDs 30 in the two LED modules 3, and connecting portions 41 that connect these lens portions 40 (see FIGS. 2 and 3). The lens portions 40 and connecting portions 41 are integrally formed from a translucent synthetic resin material (for example, polycarbonate resin).

[0024] The joint portion 41 is formed in the shape of a rectangular box with the longitudinal direction extending in the left-right direction as a whole, and has a flange-like peripheral portion 42 that protrudes outward from the open end of the rear surface.

[0025] Each lens portion 40 is formed in a truncated cone shape and protrudes rearward from the rear surface of the connecting portion 41 (see FIG. 7). Each lens portion 40 is disposed at a position corresponding one-to-one to the plurality of LEDs 30 of the LED module 3 (see FIGS. 3 and 7).

[0026] A pair of bulges 410 and a recess 411 are provided at the center of the longitudinal direction (left-right direction) on the front surface of the connecting part 41. Each bulge 410 is formed in the shape of a long pyramid and is lined up in a row with its longitudinal direction aligned in the vertical direction. The internal space of each bulge 410 accommodates the output cables 20 connected to each LED module 3. The recess 411 is provided at the center of the front surface of the connecting part 41. A circular screw insertion hole 412 penetrates the bottom surface of the recess 411 (see FIG. 3).

[0027] A plurality of position restriction portions 44 are provided on the front surface of the peripheral portion 42 (see FIG. 3). Each position restriction portion 44 is formed in a rectangular column shape that is trapezoidal when viewed from the front-rear direction. These plurality of position restriction portions 44 are provided two on each end of the longitudinal direction (left-right direction) of the front surface of the peripheral portion 42, and six on each end of the lateral direction (up-down direction) of the front surface of the peripheral portion 42.

[0028] A semicircular screw insertion groove 420 is provided at each of the longitudinal center and the lateral center of the peripheral edge portion 42 (see FIG. 3). Four V-shaped recessed relief portions 43 are provided at each of the upper and lower ends of the peripheral edge portion 42. Four V-shaped recessed relief portions 43 are also provided at each of the left and right ends of the peripheral edge portion 42. These relief portions 43 are disposed one between each of adjacent position restriction portions 44 when viewed from the front-to-rear direction (see FIGS. 2 and 3).

[0029] Furthermore, one columnar protrusion 45 is provided at each of the four corners on the front surface of the connecting portion 41. These four protrusions 45 protrude forward from the front surface of the connecting portion 41. The height of each protrusion 45 (the distance from the front surface of the connecting portion 41 to the tip of the protrusion 45) is approximately equal to the height of the bulging portion 410 (the distance from the front surface of the connecting portion 41 to the tip of the bulging portion 410).

[0030] Furthermore, the coupling part 41 has a plurality of protruding parts 413. These protruding parts 413 are each formed in a cylindrical shape and protrude rearward from the rear surface of the coupling part 41 (see FIG. 7). Note that these protruding parts 413 are arranged in positions on the coupling part 41 that correspond one-to-one to the plurality of through holes 310 of the substrate 31.

[0031] (2-2-3) Sealing material The sealing member 6 is made of silicone rubber and has a rectangular frame shape when viewed from the front-to-rear direction (see FIG. 2). However, the sealing member 6 may be made of an elastic material other than silicone rubber.

[0032] The seal member 6 has a first seal portion 61 and a second seal portion 62 (see FIG. 2). The first seal portion 61 and the second seal portion 62 are both formed in a rectangular frame shape. The outer peripheral end of the first seal portion 61 and the outer peripheral end of the second seal portion 62 are connected by a connecting portion 63 formed in a rectangular frame shape. In other words, inside the seal member 6, a groove that is surrounded by the first seal portion 61, the second seal portion 62, and the connecting portion 63 and opens to the inner circumferential surface is formed around the entire periphery of the seal member 6.

[0033] Two ribs 610 are formed around the entire periphery on the front and rear surfaces of the first seal portion 61 (see FIGS. 5 and 6). Similarly, two ribs are formed around the entire periphery on the front and rear surfaces of the second seal portion 62.

[0034] Furthermore, one screw insertion groove 66 is provided at each of the longitudinal center, lateral center, and four corners of the sealing member 6 (see FIG. 2). Five relief portions 65 each consisting of a V-shaped recess are provided at the top and bottom ends of the sealing member 6. Furthermore, one relief portion 65 each consisting of a V-shaped recess is provided at each of the left and right ends of the sealing member 6. These relief portions 65 are arranged at positions that overlap with relief portions 43 provided in peripheral portion 42 of light distribution control member 4 when viewed from the front-to-back direction (see FIG. 2).

[0035] (2-2-4) Mounting parts The mounting member 5 is formed, for example, from an aluminum alloy in the shape of a rectangular flat plate. The front surface (mounting surface 50) of the mounting member 5 is flat. On the other hand, a plurality of protrusions 54 are integrally formed on the rear surface of the mounting member 5 so as to be spaced apart in the vertical direction (see FIG. 3). Each of the protrusions 54 is formed in the shape of a rectangular pillar. Some of the plurality of protrusions 54 have one screw hole 540 on each of their bottom surfaces.

[0036] Furthermore, mounting member 5 has a plurality of screw holes 51. These multiple screw holes 51 are provided on the periphery of mounting member 5. A screw 72 for fixing frame body 7, which will be described later, is screwed into each screw hole 51. A screw hole is provided in the center of mounting member 5, into which screw 52 is screwed to be inserted into screw insertion hole 412 of light distribution control member 4.

[0037] Furthermore, circular cable insertion holes are provided at both the top and bottom ends in the center of the mounting member 5. The output cable 20 connected to the connector 32 of the LED module 3 is inserted into the cable insertion holes and routed to the rear side of the mounting member 5 (see FIG. 2).

[0038] A plurality of heat sinks 53 are attached to the rear surface of the mounting member 5. These heat sinks 53 are formed into flat plates, for example, from an aluminum alloy. The plurality of heat sinks 53 are attached to the rear surface of the mounting member 5 by, for example, crimping.

[0039] (2-2-5) Frame The frame 7 has a front wall 70 formed in a rectangular frame shape, and side walls 71 that protrude rearward along the entire periphery from the outer periphery of the front wall 70 (see FIG. 2). The front wall 70 and the side walls 71 are preferably formed integrally from a metal plate such as a stainless steel plate by punching and bending.

[0040] The front wall 70 has a plurality of screw insertion holes 700. These screw insertion holes 700 are provided at positions that correspond one-to-one to the plurality of screw holes 51 provided on the periphery of the mounting member 5.

[0041] (2-2-6) Support member The support member 8 is made of an electrically insulating and elastically deformable material, such as PBT (polybutylene terephthalate). However, the support member 8 may be made of a synthetic resin material other than PBT.

[0042] 4 and 5, the support member 8 has a main body 80 formed in the shape of a truncated cone as a whole. In the following description, unless otherwise specified, the up-down, front-back, and left-right directions indicated by arrows in FIG. 4 are defined as the up-down, front-back, and left-right directions of the support member 8.

[0043] A circular recess 81 is formed in the center of the front surface of the main body 80. An insertion hole 84 penetrates the center of the bottom surface of the recess 81 in the front-rear direction. A plurality of grooves 82 (eight in the illustrated example) are formed in the front surface of the main body 80 along the radial direction (see FIGS. 4, 6A, and 6B). These grooves 82 are connected to the recess 81. In other words, seven contact portions 83 separated by the eight grooves 82 are formed in the front surface of the main body 80 (see FIGS. 4 and 6A). Each of these seven contact portions 83 is formed in a substantially square pyramid shape.

[0044] A protrusion 85 and a positioning rib 86 are provided on the rear surface of the main body 80 (see FIGS. 5, 6B, and 6C). The protrusion 85 is formed in a donut shape (annular), and protrudes rearward from the edge of the insertion hole 84 on the rear surface of the main body 80 (see FIGS. 5 and 7). The inner peripheral surface of the protrusion 85 forms the inner wall surface of the insertion hole 84.

[0045] The positioning rib 86 is formed in a cylindrical shape and protrudes rearward from the outside of the protrusion 85 on the rear surface of the main body 80. A recess 87 is formed between the positioning rib 86 and the protrusion 85 (see FIG. 5). The recess 87 is formed in a shape such that the cross section parallel to the front-rear direction is a semicircular arc (semicircular torus shape) (see FIG. 7).

[0046] (2-2-7) Light source unit assembly procedure Next, we will explain the procedure for assembling the light source unit 2. However, the assembly procedure explained below is just an example, and the order of some steps may be changed.

[0047] First, the worker performing the assembly work places the insulating sheet 21 on the mounting surface 50 of the mounting member 5. The insulating sheet 21 is formed in a sheet shape from a synthetic resin such as PET (polyethylene terephthalate). The insulating sheet 21 has a plurality of holes that correspond one-to-one to the plurality of screw holes 51 provided in the mounting surface 50.

[0048] The worker places the LED module 3 on the insulating sheet 21, and then places the support members 8 one by one so that they overlap the multiple through holes 310 in the substrate 31. The diameter of the main body 80 of the support member 8 is larger than the inner diameter of the through holes 310 in the substrate 31, and the outer diameter of the positioning rib 86 is smaller than the inner diameter of the through holes 310. Therefore, the positioning rib 86 inserted into the through holes 310 comes into contact with the inner circumferential surface of the through holes 310, thereby restricting the movement range of the support member 8 (the range in which it can move parallel to the front surface of the substrate 31) (see FIG. 7 ).

[0049] An operator threads the screw 52 into the screw hole 51 of the mounting member 5 through the insertion hole 84 of the support member 8. The screw 52 has a washer attached, and when the washer of the screw 52 comes into contact with the bottom surface of the recess 81 of the support member 8, the tightening force of the screw 52 acts on the board 31 via the support member 8 (see FIG. 7 ). Therefore, the LED module 3 is attached to the mounting surface 50 of the mounting member 5 via the support member 8 and the screw 52.

[0050] The worker passes the output cable 20 through the cable insertion hole in the center of the mounting member 5 and leads it out to the mounting surface 50 side, and connects the output cable 20 to the connector 32 of the LED module 3 .

[0051] The worker attaches sealing member 6 to peripheral portion 42 of light distribution control member 4 by inserting peripheral portion 42 into the groove of sealing member 6. Then, the worker places light distribution control member 4 with sealing member 6 attached on mounting surface 50 (see FIG. 5 ), and then covers sealing member 6 with frame body 7 from the front.

[0052] Finally, the worker screws 72 one by one into the plurality of screw holes 51 in mounting surface 50 through the plurality of screw insertion holes 700 in front wall 70. As a result, frame body 7 is fixed to mounting member 5, and peripheral portion 42 of light distribution control member 4 is sandwiched between frame body 7 and mounting surface 50 with sealing member 6 interposed therebetween, thereby mounting light distribution control member 4 to mounting member 5. The gap between mounting surface 50 and peripheral portion 42 is sealed by sealing member 6. Furthermore, relief portions 43, 65 are provided in peripheral portion 42 of light distribution control member 4 and sealing member 6, respectively, so that peripheral portion 42 and sealing member 6 are prevented from hitting screws 72, and mounting member 5 can be made smaller in the vertical and horizontal directions.

[0053] With the above steps, the assembly of the light source unit 2 is completed.

[0054] (2-3) Assembly procedure for lighting fixtures Next, the assembly procedure for the lighting device A1 will be described. However, the assembly procedure described below is only an example, and the order of some steps may be changed.

[0055] For example, the worker places two light source units 2 side by side on a workbench and attaches one fixing base 10 to each of the left and right ends of the two light source units 2. That is, the worker attaches each fixing base 10 to each of the left and right ends of the two light source units 2 using two screws 100 inserted into two screw insertion holes of each fixing base 10. Thus, by being fixed to the pair of fixing bases 10, the two light source units 2 are supported by the fixture main body 1 (the pair of fixing bases 10) so as to be aligned vertically (see FIG. 1).

[0056] Then, the worker connects the output cables 20 of the two light source units 2 to the terminal blocks inside the box body 130, and then closes the opening of the box body 130 with the lid 131. The lid 131 is fixed to the box body 130 with screws.

[0057] The above steps complete the assembly of the lighting fixture A1.

[0058] (3) Advantages of the embodiment As described above, lighting fixture A1 combines the functions of the optical components (function to control light distribution) and the front cover (function to protect the optical components) of conventional examples into a single component (light distribution control member 4), thereby reducing the number of components and improving the workability of assembly work.

[0059] Furthermore, in lighting fixture A1, when LED module 3 is screwed to mounting surface 50 of mounting member 5, support member 8 is interposed between screw 52 and LED module 3. Even if an impact is applied to (joint portion 41 of) light distribution control member 4 exposed on the front surface of lighting fixture A1, deformation of light distribution control member 4 can be suppressed by contacting contact portion 83 of support member 8 with (protrusion portion 413 of) light distribution control member 4 (see FIG. 7 ). As a result, lighting fixture A1 can protect light distribution control member 4 from impact while improving the ease of assembly.

[0060] Here, support member 8 has a plurality of contact portions 83 and a plurality of grooves 82 provided between each of the plurality of contact portions 83. Thus, because support member 8 has a plurality of grooves 82, the fastening force received from screws 52 is dispersed by the plurality of grooves 82, reducing the occurrence of localized stress in support member 8. As a result, lighting device A1 can suppress deterioration of support member 8 caused by the occurrence of localized stress.

[0061] Furthermore, in lighting fixture A1, since support member 8 is formed from an electrically insulating material (synthetic resin material), no parts are required to electrically insulate mounting member 5, which is a conductor (metal: aluminum alloy), from metal screws 52. As a result, lighting fixture A1 can reduce the number of parts.

[0062] Here, each of the multiple lens portions 40 that light distribution control member 4 has is formed in a shape that tapers toward LED 30 (see FIG. 7). Meanwhile, support member 8 is formed in a shape that tapers from substrate 31 toward coupling portion 41 (see FIG. 7). Thus, because lens portion 40 and support member 8 are formed in shapes that taper in opposite directions, a relatively large distance can be secured between lens portion 40 and support member 8. As a result, lighting device A1 can reduce the possibility of lens portion 40 and support member 8 coming into contact when light distribution control member 4 is deformed.

[0063] Furthermore, protrusion 85 of support member 8 comes into contact with attachment surface 50 of attachment member 5 through through hole 310 provided in substrate 31 (see FIG. 7 ). In other words, when contact portion 83 receives a force from (abutment portion 413 of) light distribution control member 4 in a direction toward substrate 31, protrusion 85 comes into contact with attachment surface 50, thereby mitigating the impact applied to substrate 31.

[0064] Here, contact portion 83 of support member 8 has a flat surface that can come into contact with (protrusion portion 413 of) light distribution control member 4 (see FIGS. 4 and 7). Therefore, in lighting device A1, stress generated in contact portion 83 when contact portion 83 comes into contact with (protrusion portion 413 of) light distribution control member 4 can be reduced.

[0065] Incidentally, in lighting device A1, support members 8 are arranged within the projection range of LED modules 3 when viewed from the direction in which LED modules 3 and light distribution control member 4 are aligned (front-to-back direction) (see FIG. 2). In other words, each of the multiple support members 8 does not protrude beyond substrates 31 of LED modules 3. Therefore, in lighting device A1, support members 8 can evenly support substrates 31 of LED modules 3, and distortion, deformation, and the like of substrate 31 can be suppressed.

[0066] (4) Summary A lighting fixture (A1) according to a first aspect of the present disclosure includes a light source unit (2) and a fixture body (1) that supports the light source unit (2). The light source unit (2) includes an LED module (3) and a light distribution control member (4) that controls the distribution of light emitted from the LED module (3). The light source unit (2) includes a mounting member (5) having a mounting surface (50) to which the LED module (3) and the light distribution control member (4) are attached, and a screw (52) that is screwed into a screw hole (51) provided in the mounting surface (50). The light source unit (2) includes a support member (8) that is interposed between the screw (52) and the LED module (3) and supports the LED module (3). The support member (8) has a contact portion (83) that can come into contact with the light distribution control member (4) when the light distribution control member (4) is deformed.

[0067] The lighting fixture (A1) according to the first aspect can improve the workability of the assembly work and can protect the light distribution control member (4) from impacts.

[0068] A lighting fixture (A1) according to a second aspect of the present disclosure can be realized by combining it with the lighting fixture (A1) according to the first aspect. In the lighting fixture (A1) according to the second aspect, it is preferable that the support member (8) has a plurality of contact portions (83) and a plurality of grooves (82) provided between each of the plurality of contact portions (83).

[0069] In the lighting fixture (A1) according to the second aspect, the support member (8) has a plurality of grooves (82), and therefore the fastening force received from the screw (52) is dispersed by the plurality of grooves (82), thereby suppressing deterioration of the support member (8) due to the generation of localized stress.

[0070] A lighting fixture (A1) according to a third aspect of the present disclosure can be realized by combining it with the first or second aspect. In the lighting fixture (A1) according to the third aspect, the mounting member (5) is preferably a conductor. The support member (8) is preferably made of an electrically insulating material.

[0071] The lighting fixture (A1) according to the third aspect does not require a component for electrically insulating the mounting member (5), which is a conductor, from the screw (52), thereby reducing the number of components.

[0072] A lighting fixture (A1) according to a fourth aspect of the present disclosure can be realized by combining it with any of the first to third aspects. In the lighting fixture (A1) according to the fourth aspect, the support member (8) is preferably made of an elastically deformable material.

[0073] The lighting fixture (A1) according to the fourth aspect can further protect the light distribution control member (4) against impact by elastically deforming the support member (8).

[0074] A lighting device (A1) according to a fifth aspect of the present disclosure can be realized by combining it with any one of the first to fourth aspects. In the lighting device (A1) according to the fifth aspect, the LED module (3) preferably has a plurality of LEDs (30) and a substrate (31) on whose surface the plurality of LEDs (30) are mounted. The light distribution control member (4) preferably has a plurality of lens portions (40) corresponding one-to-one to the plurality of LEDs (30), and a connecting portion (41) connecting the plurality of lens portions (40). Each of the plurality of lens portions (40) is preferably formed in a shape tapering toward the LED (30). The support member (8) is preferably formed in a shape tapering from the substrate (31) toward the connecting portion (41).

[0075] In the lighting fixture (A1) according to the fifth aspect, the lens portion (40) and the support member (8) are formed so as to taper in opposite directions, which allows a relatively large distance to be secured between the lens portion (40) and the support member (8). As a result, the lighting fixture (A1) according to the fifth aspect can reduce the possibility of contact between the lens portion (40) and the support member (8) when the light distribution control member (4) is deformed.

[0076] A lighting fixture (A1) according to a sixth aspect of the present disclosure can be realized by combining it with the fifth aspect. In the lighting fixture (A1) according to the sixth aspect, the substrate (31) preferably has a through-hole (310) large enough to allow a portion of the support member (8) to pass through. The support member (8) preferably has a protrusion (85) that abuts against the mounting surface (50) through the through-hole (310).

[0077] In the lighting fixture (A1) according to the sixth aspect, the projections (85) come into contact with the mounting surface (50), thereby mitigating the impact applied to the substrate (31).

[0078] A lighting fixture (A1) according to a seventh aspect of the present disclosure can be realized in combination with the sixth aspect. In the lighting fixture (A1) according to the seventh aspect, the support member (8) preferably has a positioning rib (86) that is inserted into the through hole (310).

[0079] In the lighting fixture (A1) of the seventh aspect, the positioning rib (86) inserted into the through hole (310) contacts the inner surface of the through hole (310), thereby restricting the range of movement of the support member (8) and enabling the base plate (31) to be positioned relative to the mounting member (5).

[0080] A lighting device (A1) according to an eighth aspect of the present disclosure can be realized by combining it with any of aspects 1 to 7. In the lighting device (A1) according to the eighth aspect, it is preferable that the contact portion (83) has a flat surface that can come into contact with the light distribution control member (4).

[0081] The lighting fixture (A1) according to the eighth aspect can reduce stress that occurs in the contact portion (83) when the contact portion (83) comes into contact with the light distribution control member (4).

[0082] A lighting device (A1) according to a ninth aspect of the present disclosure can be realized by combining it with any of the first to eighth aspects. In the lighting device (A1) according to the ninth aspect, it is preferable that the support member (8) is disposed within the projection range of the LED module (3) when viewed from the direction in which the LED module (3) and the light distribution control member (4) are aligned.

[0083] In the lighting fixture (A1) according to the ninth aspect, the substrate (31) of the LED module (3) can be evenly supported by the support member (8), and distortion, deformation, etc. of the substrate (31) can be suppressed. [Explanation of symbols]

[0084] A1 Lighting fixture 1. Instrument body 2 Light source unit 3 LED modules 4 Light distribution control components 5 Mounting material 8 Support member 30 LED 31 PCB 40 Lens section 41 Joint 50 Mounting surface 52 screws 82 Groove 83 Contact area 85 protrusion 86 Positioning rib 310 through hole

Claims

1. A light source unit; a fixture body that supports the light source unit; and The light source unit is An LED module; a light distribution control member for controlling the distribution of light emitted from the LED module; a mounting member having a mounting surface to which the LED module and the light distribution control member are attached; a screw that is screwed into a screw hole provided on the mounting surface; a support member interposed between the screw and the LED module to support the LED module; Equipped with the support member has a contact portion that can come into contact with the light distribution control member when the light distribution control member is deformed, Lighting fixtures.

2. The support member has a plurality of the contact portions and a plurality of grooves provided between the plurality of contact portions.

2. The lighting fixture of claim 1.

3. the mounting member is a conductor; The support member is formed of an electrically insulating material.

3. The lighting fixture according to claim 1 or 2.

4. The support member is formed of an elastically deformable material. A lighting fixture according to any one of claims 1 to 3.

5. The LED module includes: A plurality of LEDs; a substrate having the plurality of LEDs mounted on its surface; and The light distribution control member is a plurality of lens portions corresponding one-to-one to the plurality of LEDs; a coupling portion that couples the plurality of lens portions; and Each of the plurality of lens portions is formed in a shape tapering toward the LED, The support member is formed in a shape tapering from the base plate toward the coupling portion. A lighting fixture according to any one of claims 1 to 4.

6. the substrate has a through hole large enough to allow a portion of the support member to pass therethrough; The support member has a protrusion that passes through the through hole and abuts against the mounting surface.

6. The lighting fixture according to claim 5.

7. The support member has a positioning rib that is inserted into the through hole.

7. The lighting fixture of claim 6.

8. the contact portion has a flat surface that can come into contact with the light distribution control member; A lighting fixture according to any one of claims 1 to 7.

9. the support member is disposed within a projection range of the LED module when viewed from a direction in which the LED module and the light distribution control member are arranged. A lighting fixture according to any one of claims 1 to 8.

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