Luminaire

Abstract

To provide a luminaire in which a path for a radio signal is easy to secure.SOLUTION: A luminaire according to the present disclosure comprises: a supporting member; a light source provided on the side of a first surface of the supporting member; a power supply device provided on the side of a second surface that is a surface opposite to the first surface of the supporting member, and outputting lighting power for lighting the light source; and a communication device provided on the side of the second surface of the supporting member, and communicating with an external control device, and controlling the power supply device on the basis of an instruction from the control device. The communication device comprises an antenna for receiving a radio signal. The antenna is provided at a position on the side opposite to the second surface out of the communication device in a direction intersecting with the second surface.SELECTED DRAWING: Figure 12

Description

[Technical Field]

[0001] The present disclosure relates to lighting fixtures. [Background technology]

[0002] Patent Document 1 discloses a light source unit including a mounting member, a board, a wireless module, and a lighting device. The board is disposed on the underside of the mounting member. An LED is provided on the board. The wireless module has an antenna for receiving radio waves including a control signal from a remote control device. The lighting device is disposed on the upper surface of the mounting member and controls the lighting state of the LED in response to the control signal received by the antenna. The wireless module is disposed on the upper surface of the mounting member. The mounting member has slits penetrating its upper and lower surfaces. The slits are disposed so as to overlap with corresponding locations on the mounting member that correspond to the antenna. The wireless module is disposed next to the lighting device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-115923 Summary of the Invention [Problem to be solved by the invention]

[0004] Metal mounting members are sometimes used to dissipate heat from the LED module and lighting device, ensure the strength of the light source unit, etc. In Patent Document 1, a through-hole is provided in the mounting member so that radio waves used for wireless communication are not blocked when a wireless module is installed on the mounting member. In this case, if the antenna of the wireless module is misaligned with the through-hole, communication problems may occur.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a lighting fixture that makes it easy to ensure a path for wireless signals. [Means for solving the problem]

[0006] The lighting device according to the present disclosure comprises a support member, a light source provided on a first surface of the support member, a power supply device provided on a second surface of the support member opposite the first surface, the power supply device outputting lighting power to turn on the light source, and a communication device provided on the second surface of the support member, communicating with an external control device and controlling the power supply device based on commands from the control device, the communication device having an antenna for receiving wireless signals, the antenna being provided at a position on the communication device opposite the second surface in a direction intersecting with the second surface. [Effects of the Invention]

[0007] In the lighting fixture according to the present disclosure, the antenna is provided on the opposite side of the communication device from the second surface in the direction intersecting with the second surface of the support member, which makes it easier to ensure a path for wireless signals. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a lighting fixture according to a first embodiment. [Figure 2] 1 is a perspective view of a lighting fixture according to a first embodiment, showing a state in which a lighting fixture and a fixture body are separated. FIG. [Figure 3] 1 is a perspective view of a lighting fixture and a communication device according to a first embodiment. [Figure 4] 3 is a perspective view illustrating the arrangement of a communication device relative to a lighting fixture according to the first embodiment. FIG. [Figure 5] FIG. 2 is a perspective view of a substrate of the communication device according to the first embodiment. [Figure 6] FIG. 1 is a plan view of a communication device according to a first embodiment. [Figure 7] 1 is a perspective view of a communication device according to a first embodiment. [Figure 8] 1 is an exploded perspective view of a communication device according to a first embodiment. [Figure 9] FIG. 10 is a perspective view of a communication device according to a first modified example of the first embodiment. [Figure 10] FIG. 10 is a plan view of a communication device according to a first modified example of the first embodiment. [Figure 11] FIG. 10 is a perspective view of a communication device according to a second modification of the first embodiment. [Figure 12] 1 is a cross-sectional view of a lighting fixture according to a first embodiment. [Figure 13] FIG. 10 is a perspective view of a lighting fixture according to a third modification of the first embodiment, illustrating the arrangement of a communication device relative to the lighting fixture. [Figure 14] 1 is a plan view of a lighting fixture according to a first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] A lighting fixture according to the present embodiment will be described with reference to the drawings. The same or corresponding components are designated by the same reference numerals, and repeated description may be omitted.

[0010] Embodiment 1 FIG. 1 is a perspective view of a lighting fixture 1 according to embodiment 1 as viewed from the side of the lighting space. FIG. 2 is a perspective view of the lighting fixture according to embodiment 1 as viewed from the side of the lighting space, illustrating a state in which a lighting fixture 2 and a fixture body 3 are separated. The lighting fixture 1 includes the lighting fixture 2 for irradiating light into the lighting space and the fixture body 3 for holding the lighting fixture 2 on an attachment portion such as a ceiling. The fixture body 3 and the lighting fixture 2 are detachably attached to the fixture body 3. Therefore, the lighting fixture 1 can be used by attaching lighting fixtures 2 with different specifications, such as color temperature or brightness, selected by a user or the like to the fixture body 3.

[0011] The fixture body 3 is, for example, elongated, and has fixture ends 32 on both ends. The fixture body 3 is provided with a storage section 30 that stores a portion of the lighting fixture 2 when the lighting fixture 2 is attached. The storage section 30 is provided with a power terminal block 33 and a fixture-side power line 34, which are paths for supplying power to the power supply device 5, and a connecting spring 31, which is a fixture-side connector for attaching the lighting fixture 2. The fixture body 3 is fixed to a hanging bolt 91 using a fastener 92 such as a nut or washer, and is thereby installed on an attachment portion such as a ceiling 9. The fixture body 3 is not limited to this, and may be installed by being embedded in the ceiling 9, or installed on a bar member that constitutes a system ceiling, for example.

[0012] FIG. 3 is a perspective view of the lighting fixture and communication device 4 according to the first embodiment, viewed from the support member 20 side. The lighting fixture 2 is also referred to as a light source unit, a light unit, etc. The lighting fixture 2 is, for example, long. The lighting fixture 2 includes a support member 20 having a first surface and a second surface opposite the first surface. The support member 20 is also called a base or a frame, and is formed, for example, from a metal material. FIG. 3 is a view of the lighting fixture 2 as viewed from the second surface side. A light source 11, which will be described later, is provided on the first surface side of the support member 20. A translucent cover 21 that covers the light source 11 is attached to the support member 20. A power supply unit 5 and a communication device 4 are provided on the second surface side of the support member 20. The support member 20 also has a side portion 23 extending from the second surface toward the side where the communication device 4 is provided.

[0013] The power supply device 5 outputs lighting power to light the light source. A lamp-side power line 22 is connected to the power supply device 5 for connecting the power terminal block 33 and the power supply device 5, forming a path for supplying power to the power supply device 5. In addition, a connecting fitting 25, which is a lamp-side connecting fitting that engages with the connecting spring 31, is provided on the second surface of the support member 20. In the longitudinal direction of the support member 20, the power supply device 5 is disposed between the two connecting fittings 25. In addition, the power supply device 5 is disposed in a position where it does not come into contact with the hanging bolt 91 when the lamp 2 is attached to the fixture body 3.

[0014] The communication device 4 communicates with a control device (not shown) provided outside the lighting fixture 1 using wireless signals. The communication device 4 receives commands from the control device via wireless communication and controls the power supply device 5 based on these commands. The communication device 4 is also referred to as a communication unit, a wireless device, etc.

[0015] The communication device 4 includes a board 6, which will be described later, and a case 7 that houses the board 6. The case 7 is configured by combining a first case 71 and a second case 72. The communication device 4 is installed in an upright position relative to the support member 20. The first case 71 and the second case 72 are also referred to as a lower case and an upper case, respectively, assuming other installation positions of the communication device 4.

[0016] The communication device 4 is connected to the power supply device 5 by a harness 83. The harness 83 has an electric wire 81, a power supply board connection plug 82 for connecting the electric wire 81 to the power supply device 5, and a communication board connection plug 80 for connecting the electric wire 81 to the board 6. The electric wire 81 includes, for example, a power line for supplying power for driving the communication device 4 from the power supply device 5, and a signal line for transmitting a control signal for controlling the power supply device 5 from the communication device 4.

[0017] FIG. 4 is a perspective view illustrating the arrangement of the communication device 4 relative to the lighting fixture 2 according to the first embodiment, as viewed from the support member 20 side. The communication device 4 is provided adjacent to the power supply device 5 in the short direction of the support member 20. Specifically, the communication device 4 is detachably provided between the side portion 23 and the power supply device 5. More specifically, an installation space for installing the communication device 4 is formed along the longitudinal direction of the support member 20 between the side portion 23 and the power supply device 5, and the communication device 4 is installed by inserting it into the installation space between the side portion 23 and the power supply device 5. By arranging the communication device 4 adjacent to the power supply device 5, the harness 83 connecting the communication device 4 to the power supply device 5 can be shortened, thereby improving transmission performance and reducing material costs.

[0018] Fig. 5 is a perspective view of the board 6 of the communication device 4 according to the first embodiment. Fig. 6 is a plan view of the communication device 4 according to the first embodiment. In Fig. 6, the case 7 is visually transparent in order to explain the position of the antenna 61, but the case 7 does not have to be transparent. The communication device 4 has the antenna 61 that receives wireless signals, the board 6 on which the antenna 61 is provided, and the case 7 that houses the board 6. The case 7 is made of a resin material that allows electromagnetic waves to pass through.

[0019] In FIG. 5, the antenna 61 is formed as, for example, a pattern antenna on the surface of the sub-substrate 60 facing the viewer or on a surface layer on the surface facing the viewer. The form of the antenna 61 is not limited to this, and for example, the antenna 61 may be provided on the surface of the sub-substrate 60 facing the viewer or on a surface layer on the surface facing the viewer, or in an internal layer if the sub-substrate 60 is a multilayer substrate. Also, as shown in FIGS. 8 and 13, at least a portion of the antenna 61 may be provided directly on the surface of the substrate 6 facing the viewer or on a surface layer on the surface facing the viewer. Also, the antenna 61 may be provided directly on the surface of the substrate 6 facing the viewer or on a surface layer on the surface facing the viewer, or in an internal layer if the substrate 6 is a multilayer substrate.

[0020] The communication device 4 may be provided between the side portion 23 and the power supply device 5, movable along the side portion 23. The communication device 4 is movable within a range in which at least a portion of the communication device 4 is disposed between the side portion 23 and the power supply device 5. For example, the communication device 4 may be movable along the longitudinal direction of the support member 20 within the maximum longitudinal dimension of the power supply device 5. In other words, the communication device 4 can be installed anywhere within the movable range. As described above, the communication device 4 of this embodiment has excellent installation positioning flexibility. Therefore, the installation position of the communication device 4 can be adjusted while checking the transmission and reception performance, enabling good wireless communication. The communication device 4 is movable within a range between the two connecting fittings 25 in the longitudinal direction of the support member 20. Furthermore, the communication device 4 is movable within a range in which it does not come into contact with the suspension bolt 91 when the lighting fixture 2 is attached to the fixture body 3.

[0021] 5, electronic components 62 that constitute a control circuit are mounted on the substrate 6. The control circuit converts a wireless signal received by the antenna 61 into a control signal for controlling the power supply device 5 and transmits the control signal to the power supply device 5. The substrate 6 also has a communication board connector 63 for transmitting the control signal and receiving power from the power supply device 5. The communication board connector 63 is connected to an electric wire 81.

[0022] 4, the communication device 4 is provided with the substrate 6 standing upright relative to the second surface of the support member 20. That is, the communication device 4 is provided with the direction along the plate surface of the substrate 6 intersecting with the second surface of the support member 20. In this state, at least a portion of the antenna 61 is provided at a position on the communication device 4 opposite to the second surface in the vertical direction that intersects with the second surface of the support member 20. That is, at least a portion of the antenna 61 is provided at a position near the upper end of the communication device 4 in FIG.

[0023] As a result, a wireless signal transmitted from the antenna 61 passes through the resin case 7 of the communication device 4 and between the side portion 23 of the support member 20 and the fixture body 3, before reaching the outside of the lighting fixture 1. A wireless signal received by the antenna 61 passes from the outside of the lighting fixture 1 between the side portion 23 of the support member 20 and the fixture body 3, and then passes through the resin case 7 of the communication device 4, before reaching the antenna 61. Therefore, according to this embodiment, it is easy to ensure a wireless signal path. At least a portion of the antenna 61 may be provided on the opposite side of the substrate 6 from the second surface in the perpendicular direction intersecting with the second surface of the support member 20. Alternatively, the entire antenna 61 may be disposed above the support member 20, away from the second surface.

[0024] Furthermore, at least a part of the antenna 61 may be provided on the communication device 4 or the substrate 6 at a position opposite the second surface of the support member 20, with the tip of the side portion 23 as the reference point. In FIG. 6, the range indicated by A1 is the portion that is hidden by the side portion 23 of the support member 20 when the communication device 4 is installed. In other words, at least a part of the antenna 61 may be provided above the side portion 23 in the state shown in FIG. 4. This makes it easier to ensure a path for wireless signals.

[0025] Fig. 7 is a perspective view of the communication device 4 according to the first embodiment. Fig. 8 is a perspective view showing the communication device 4 according to the first embodiment in an exploded state. Fixing holes 73 formed in the first case 71 are used when attaching the communication device 4 to another lighting fixture. The first case 71 also has wiring holes 76 formed therein through which a harness 83 that connects the board 6 and the power supply device 5 is drawn out. The first case 71 is disposed between the power supply device 5 and the board 6 when the communication device 4 is installed.

[0026] With the communication device 4 installed, the second case 72 is disposed on the opposite side of the power supply device 5 with the board 6 in between. The second case 72 has an engagement portion 75 that engages with the side portion 23. The engagement portion 75 is, for example, a dot-like or linear protrusion, and engages with a side engagement portion (described later) formed on the side portion 23. The engagement portion 75 may also engage with the side portion of the cover 21. This allows the communication device 4 to be fixed to the cover 21 or the support member 20.

[0027] Furthermore, the communication device 4 has a reset operation unit 74 that can perform a reset operation on the communication device 4. The reset operation unit 74 is an operation hole formed in the second case 72 of the communication device 4. A reset is performed when the user operates, for example, a switch 69 mounted on the board 6 via the reset operation unit 74. The reset operation unit 74 is provided on the communication device 4 at a position opposite the second surface of the support member 20, with the tip of the side portion 23 used as a reference when the communication device 4 is installed. This allows the communication device 4 to be reset without disassembling it or removing it from the support member 20.

[0028] Fig. 9 is a perspective view of a communication device 204 according to a first modified example of embodiment 1. Fig. 10 is a plan view of communication device 204 according to the first modified example of embodiment 1. Communication device 204 differs from communication device 4 in the position of fixing hole 73.

[0029] FIG. 11 is a perspective view of a communication device 304 according to a second modification of the first embodiment. The communication device 304 differs from the communication device 4 in the position of the fixing hole 73. The fixing hole 73 may be provided in a flange portion of the first case 71. Furthermore, a protrusion 77 may be provided on the inner surface of the case 7 that forms the wiring hole 76. The protrusion 77 has a tension stop function. The protrusion 77 presses the electric wire 81 arranged in the wiring hole 76. Therefore, when tension is applied to the harness 83 toward the outside of the wiring hole 76, it is possible to prevent the communication board connection plug 80 from coming off the communication board connector 63.

[0030] The protrusions 77, which protrude in a direction intersecting the through-hole direction of the wiring hole 76, press and hold the electric wires 81 arranged in the wiring hole 76. This prevents the communication board connection plug 80 from coming off the communication board connector 63 when tension toward the outside of the wiring hole 76 is applied to the harness 83, without using an additional member such as a bushing made of rubber, elastomer, or the like. Note that while FIG. 11 illustrates multiple protrusions 77 that protrude in a dome shape from the inner surface of the case 7 that forms the wiring hole 76, the shape of the protrusions 77 is not limited thereto. For example, the protrusions 77 may be conical or pyramidal, frustum-shaped, continuously raised along the direction intersecting the through-hole direction of the wiring hole 76 from the inner surface of the case 7 that forms the wiring hole 76, or may be circular or spiral-shaped.

[0031] FIG. 12 is a cross-sectional view of lighting fixture 1 according to embodiment 1. Light source substrate 10 and light sources 11 mounted on light source substrate 10 are provided on the first surface side of support member 20. The configuration of lighting fixture 1 will be described in detail using FIG. 12. As described above, in this embodiment, antenna 61 is disposed above communication device 4, so that communication device 4 can transmit and receive wireless signals even when metal support member 20 is provided. In particular, by disposing antenna 61 above position P1 of the upper end of side portion 23, it is possible to prevent radio waves from being blocked by side portion 23. In FIG. 12, arrows indicate examples of wireless signal paths.

[0032] If through holes were provided in the support member to prevent radio waves used for wireless communication from being blocked, there is a risk that foreign objects such as insects and dust may enter the interior of the lighting fixture and cause contamination. Furthermore, the cost of providing through holes in the support member increases. In contrast, in this embodiment, there is no need to form through holes in the support member to ensure a path for wireless signals. Therefore, lighting fixture 1 can prevent its interior from becoming contaminated and reduce processing costs.

[0033] For example, a through hole may not be formed in a portion of the support member 20 that overlaps with the antenna 61 when viewed from a direction perpendicular to the second surface of the support member 20. Furthermore, a through hole may not be formed in a portion of the support member 20 that overlaps with the communication device 4 when viewed from a direction perpendicular to the second surface.

[0034] However, this is not limiting, and through holes may be formed in the support member 20 to ensure more wireless signal paths. For example, as shown in FIG. 12 , a through hole 24 may be formed in a portion of the side portion 23 that overlaps with the communication device 4 when viewed perpendicularly to the side portion 23. Alternatively, a through hole may be formed in a portion of the side portion 23 that overlaps with the antenna 61 when viewed perpendicularly to the side portion 23. This ensures more communication paths and shortens the communication distance, thereby improving communication quality. Even when through holes 24 are provided in the side portion 23, the case 7 of the communication device 4 can prevent foreign matter from entering. Even if a small amount of foreign matter does enter, the cover 21 can capture the foreign matter, thereby preventing the foreign matter from entering the interior space of the lighting fixture 1.

[0035] The case 7 made of a resin material can be formed to a thickness of 0.30 mm or more. Furthermore, considering that the communication device 4 is covered and protected by the metal device body 3 and support member 20 during use, it is preferable that the median thickness be 1.00 mm or less. This value takes into consideration molding errors of 0.05 mm during mass production. Therefore, the thickness of the portion of the case 7 facing the power supply device 5 should be, for example, 0.30 mm or more and 1.00 mm or less. The thickness of the portion of the case 7 between the power supply device 5 and the substrate 6 or antenna 61 may also be 0.30 mm or more and 1.00 mm or less.

[0036] Furthermore, when the communication device 4 is used without being fully protected, such as when at least a portion of the device body 3 or the support member 20 is formed using a resin material, it is preferable that the median thickness dimension of the case 7 is 2.00 mm or more.

[0037] Furthermore, the maximum longitudinal dimension of the communication device 4 may be 10% or more of the maximum longitudinal dimension of the power supply device 5. In this way, by making the case 7 thinner and reducing the size of the communication device 4, the communication device 4 can be installed in the small space between the power supply device 5 and the side portion 23.

[0038] Additionally, the engaging portion 75 of the case 7 engages with a side engaging portion bent inward at the tip of the side portion 23. The side engaging portion may be part of the cover 21, as shown in Fig. 12. This makes it possible to prevent the communication device 4 from coming off when vibrations or impacts are applied to the lighting fixture 2 or when the communication device 4 is moved.

[0039] FIG. 13 is a diagram illustrating the arrangement of the communication device 4 relative to the lighting fixture 2 according to a third modification of the first embodiment. The communication device 4 is provided adjacent to the power supply device 5 in the short-side direction of the support member 20. The communication device 4 is provided with a portion adjacent to the power supply device 5, with one end of the communication device 4 offset along the long-side direction of the support member 20 toward the end of the lighting fixture 2 relative to the end of the power supply device 5. Specifically, the communication device 4 may be arranged, for example, such that the antenna 61 of the communication device 4 is located in a portion that does not overlap with the power supply device 5 when viewed from a direction perpendicular to the side portion 23 of the support member 20. This ensures more communication paths, thereby improving communication quality, even when the outer casing of the power supply device 5 is formed using a material that blocks electromagnetic waves, such as a metal material.

[0040] In the first embodiment, lighting power output from the power supply device 5 is supplied to the light source 11 via the power supply line 26. The support member 20 has a through-hole (not shown) for inserting the power supply line 26. A power supply line holder 27 is attached to the through-hole to hold the power supply line 26 to the support member 20. The power supply line holder 27 is made of an electrically insulating resin material or the like and closes the through-hole while maintaining electrical insulation between the power supply line 26 and the support member 20. As a result, even if the support member 20 is made of a material that blocks electromagnetic waves, for example, a metal material, the through-hole through which electromagnetic waves pass ensures more communication paths, thereby improving communication quality. Furthermore, because the through-hole is closed by the power supply line holder 27, there is no risk of foreign objects such as insects and dust entering the interior of the lighting fixture and causing contamination. In FIG. 13, an example of a wireless signal path is indicated by a dashed arrow.

[0041] FIG. 14 is a plan view of the lighting fixture 1 according to the first embodiment, as viewed from the lighting space side. Note that in FIG. 14 , the cover 21, light source board 10, light source 11, lamp-side power line 22, and support member 20 are omitted in order to illustrate the arrangement of the power supply device 5 and the communication device 4. The communication device 4 is provided on the opposite side of the power supply device 5 from the power line 35 that supplies power to the power supply device 5 from the outside. Here, it is assumed that the power line 35 is held and routed inside the lighting fixture 1 using a wiring fixture 36. The power line 35 is also referred to as an F cable. The outer casing of the power supply device 5 is formed using a material that blocks electromagnetic waves, such as a metal material. This allows the outer casing of the power supply device 5 to block noise from the power line 35, thereby improving the communication performance of the communication device 4. Furthermore, the interior space of the lighting fixture 1 can be effectively utilized.

[0042] In this embodiment, the case where the communication device 4 is placed vertically has been described, but the communication device 4 may also be placed horizontally. That is, the communication device 4 may be placed so that the second surface of the support member 20 and the substrate 6 face each other. In this case, too, the antenna 61 is provided at a position on the communication device 4 opposite the second surface in the vertical direction that intersects with the second surface, thereby making it easier to ensure a path for wireless signals.

[0043] As the communication device 4, any device that communicates between a control device (not shown) provided outside the lighting fixture 1 and the antenna 61 by wireless signals can be used.

[0044] The technical features described in this embodiment may be used in appropriate combination.

[0045] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) A support member; a light source provided on the first surface side of the support member; a power supply device provided on a second surface of the support member opposite to the first surface, the power supply device outputting lighting power for lighting the light source; a communication device provided on the second surface side of the support member, the communication device communicating with an external control device and controlling the power supply device based on commands from the control device; Equipped with the communication device has an antenna for receiving radio signals; The lighting fixture is characterized in that the antenna is provided at a position of the communication device opposite to the second surface in a direction intersecting with the second surface. (Appendix 2) the support member has a side portion extending from the second surface toward a side where the communication device is provided, The lighting fixture described in Appendix 1, characterized in that the antenna is located on a side of the communication device opposite the second surface, with the tip of the side portion as a reference. (Appendix 3) the communication device includes a substrate on which the antenna is provided, the communication device is provided in a state where a direction along a plate surface of the board intersects with the second surface of the support member, The lighting device according to claim 1 or 2, wherein the antenna is provided on the substrate at a position opposite the second surface in a direction intersecting with the second surface. (Appendix 4) 4. The lighting fixture according to claim 1, wherein the communication device is provided adjacent to the power supply device in a short-side direction of the support member. (Appendix 5) The lighting device described in any one of Appendix 1 to Appendix 4, characterized in that, when viewed from a direction perpendicular to the second surface, no through hole is formed in the portion of the support member that overlaps with the antenna. (Appendix 6) The lighting fixture described in Appendix 5, characterized in that no through hole is formed in the portion of the support member that overlaps with the communication device when viewed from a direction perpendicular to the second surface. (Appendix 7) the support member has a side portion extending from the second surface toward a side where the communication device is provided, The lighting fixture described in Appendix 1, characterized in that a through hole is formed in the portion of the side portion that overlaps with the communication device when viewed from a direction perpendicular to the side portion. (Appendix 8) 8. The lighting device according to claim 7, wherein a through hole is formed in the portion of the side portion that overlaps with the antenna when viewed from a direction perpendicular to the side portion. (Appendix 9) the communication device has a case that houses a substrate on which the antenna is provided, 9. The lighting device according to any one of claims 1 to 8, wherein the thickness of the portion of the case between the power supply device and the substrate is 0.30 mm or more and 1.00 mm or less. (Appendix 10) 10. The lighting fixture according to claim 1, wherein the maximum longitudinal dimension of the communication device is 10% or more of the maximum longitudinal dimension of the power supply device. (Appendix 11) the support member has a side portion extending from the second surface toward a side where the communication device is provided, The lighting fixture described in Appendix 1, characterized in that the communication device is arranged between the side portion and the power supply device and is movable along the side portion. (Appendix 12) the support member has a side portion extending from the second surface toward a side where the communication device is provided, the communication device has a case that houses a board on which the antenna is provided, the case being disposed between the side portion and the power supply device; The lighting device described in Appendix 1, characterized in that the case has an engagement portion that engages with the side portion. (Appendix 13) the support member has a side portion extending from the second surface toward a side where the communication device is provided, the communication device has a reset operation unit capable of performing a reset operation on the communication device, The lighting device described in Appendix 1, characterized in that the reset operation unit is provided on the communication device at a position opposite the second surface, with the tip of the side portion as a reference. (Appendix 14) the communication device has a case that houses a substrate on which the antenna is provided, The lighting device described in Appendix 13, wherein the reset operation portion is an operation hole formed in the case. (Appendix 15) the communication device has a case that houses a substrate on which the antenna is provided, The case is formed with a wiring hole through which a harness that connects the board and the power supply device is drawn out, 8. The lighting fixture according to claim 1, wherein a protrusion is provided on an inner surface of the case that forms the wiring hole. (Appendix 16) The lighting fixture described in any one of Supplementary Note 1 to Supplementary Note 15, characterized in that the communication device is provided on the opposite side of the power supply device from a power line that supplies power to the power supply device from the outside, with the power supply device in between. [Explanation of symbols]

[0046] REFERENCE SIGNS LIST 1 lighting fixture, 2 lighting fixture, 3 fixture body, 4 communication device, 5 power supply device, 6 board, 7 case, 9 ceiling, 10 light source board, 11 light source, 20 support member, 21 cover, 22 lighting fixture side power line, 23 side, 24 through hole, 25 connecting fitting, 26 power supply line, 27 power supply line holder, 31 connecting spring, 32 fixture end, 33 power terminal block, 34 fixture side power line, 35 power line, 36 wiring tool, 50 power supply board, 60 auxiliary board, 61 antenna, 62 electronic component, 63 communication board connector, 69 switch, 71 first case, 72 second case, 73 fixing hole, 74 reset operation part, 75 engagement part, 76 wiring hole, 77 protrusion part, 80 communication board connection plug, 81 electric wire, 82 power supply board connection plug, 83 Harnesses, 91 Hanging bolts, 92 Fixtures, 204 Communication equipment, 304 Communication equipment

Claims

1. A support member; a light source provided on the first surface side of the support member; a power supply device provided on a second surface of the support member opposite to the first surface, the power supply device outputting lighting power for lighting the light source; a communication device provided on the second surface side of the support member, the communication device communicating with an external control device and controlling the power supply device based on a command from the control device; Equipped with the communication device has an antenna for receiving radio signals; The lighting fixture is characterized in that the antenna is provided at a position of the communication device opposite to the second surface in a direction intersecting with the second surface.

2. the support member has a side portion extending from the second surface toward a side where the communication device is provided, The lighting fixture according to claim 1 , wherein the antenna is provided at a position on the communication device opposite the second surface with respect to the tip of the side portion.

3. the communication device includes a substrate on which the antenna is provided, the communication device is provided in a state where a direction along a plate surface of the board intersects with the second surface of the support member, 3. The lighting device according to claim 1, wherein the antenna is provided on a side of the substrate opposite to the second surface in a direction intersecting with the second surface.

4. 3. The lighting fixture according to claim 1, wherein the communication device is provided adjacent to the power supply device in a short-side direction of the support member.

5. 3. The lighting fixture according to claim 1, wherein no through-hole is formed in a portion of the support member that overlaps with the antenna when viewed from a direction perpendicular to the second surface.

6. The lighting fixture according to claim 5, wherein no through-hole is formed in a portion of the support member that overlaps with the communication device when viewed from a direction perpendicular to the second surface.

7. the support member has a side portion extending from the second surface toward a side where the communication device is provided, The lighting fixture according to claim 1 , wherein a through hole is formed in a portion of the side portion that overlaps with the communication device when viewed from a direction perpendicular to the side portion.

8. The lighting fixture according to claim 7, wherein a through hole is formed in a portion of the side portion that overlaps with the antenna when viewed from a direction perpendicular to the side portion.

9. the communication device has a case that houses a substrate on which the antenna is provided, 3. The lighting fixture according to claim 1, wherein a thickness of the portion of the case between the power supply device and the circuit board is 0.30 mm or more and 1.00 mm or less.

10. 3. The lighting fixture according to claim 1, wherein the maximum longitudinal dimension of the communication device is 10% or more of the maximum longitudinal dimension of the power supply device.

11. the support member has a side portion extending from the second surface toward a side where the communication device is provided, The lighting fixture according to claim 1 , wherein the communication device is provided between the side portion and the power supply device so as to be movable along the side portion.

12. the support member has a side portion extending from the second surface toward a side where the communication device is provided, the communication device has a case that houses a board on which the antenna is provided, the case being disposed between the side portion and the power supply device; The lighting fixture according to claim 1 , wherein the case has an engaging portion that engages with the side portion.

13. the support member has a side portion extending from the second surface toward a side where the communication device is provided, the communication device has a reset operation unit capable of performing a reset operation on the communication device, The lighting fixture according to claim 1 , wherein the reset operation portion is provided on a side of the communication device opposite to the second surface with respect to the tip of the side portion.

14. the communication device has a case that houses a substrate on which the antenna is provided, The lighting device according to claim 13, wherein the reset operation portion is an operation hole formed in the case.

15. the communication device has a case that houses a substrate on which the antenna is provided, The case is formed with a wiring hole through which a harness that connects the board and the power supply device is drawn out, 3. The lighting fixture according to claim 1, wherein a protrusion is provided on an inner surface of the case that defines the wiring hole.

16. 3. The lighting fixture according to claim 1, wherein the communication device is provided on the opposite side of the power supply device from a power line that supplies power to the power supply device from the outside.

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