Illuminating device

Abstract

To provide an illuminating device that can secure radio communication performance.SOLUTION: An appliance body 11 comprises a long base surface part 15, side surface parts 16 on both sides in a short direction of the base surface part 15, and end surface parts at both ends in a long direction of the base surface part 15. An opening part 19 is provided in a surface opposed to the base surface part 15 between the side surface parts 16 and the end surface parts. A light source unit 12 comprises: a long metallic chassis 41 detachably attached to the appliance body 11, and arranged in the opening part 19; a light source 42 arranged on the chassis 41; and a translucent cover 43 covering the light source 42, and attached to the chassis 41. Gaps 70 are provided between both side parts in a short direction of the chassis 41 and the side surface parts 16 on both sides of the appliance body 11, and the gaps 70 are covered by the translucent cover 43. A radio unit 27 is arranged in such a manner that its periphery is surrounded by six metal surfaces 71 between the inside of the appliance body 11 and the chassis 41 of the light source unit 12.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE The present invention relates to a lighting device. [Background technology]

[0002] Conventionally, lighting devices equipped with a wireless unit have been known. In such lighting devices, a notch or the like is provided on a side portion of a metal fixture body to place the wireless unit, thereby improving the quality of wireless communication by the wireless unit. However, it is desired to improve the quality of wireless communication without providing a notch or the like on the fixture body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-191217 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a lighting device capable of improving wireless communication quality. [Means for solving the problem]

[0005] The lighting device of the embodiment includes a metal fixture body, a light source unit, and a wireless unit. The fixture body has a long base surface portion, side portions on both sides in a short direction intersecting the long direction of the base surface portion, and end surface portions at both ends in the long direction of the base surface portion, and an opening is provided on a surface facing the base surface portion between the side portions and the end surface portions. The light source unit has a long metal chassis that is detachably attached to the fixture body and placed in the opening, a light source that is placed on the chassis, and a translucent cover that covers the light source and is attached to the chassis, the short-side width of the chassis is smaller than the short-side width of the opening of the fixture body, a gap is provided between both sides in the short-side direction of the chassis and both side portions of the fixture body, and the gap is covered by the translucent cover. The wireless unit is arranged between the inside of the fixture body and the chassis of the light source unit, and is surrounded by six metal surfaces. Effect of the Invention

[0006] According to the embodiment, it is expected that the quality of wireless communication can be improved. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view of an illumination device showing an embodiment. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a schematic cross-sectional view of the above lighting device. [Figure 4] FIG. 2 is an exploded perspective view of a portion of the lighting device. [Diagram 5] FIG. 2 is an exploded perspective view of a portion of the lighting device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment will be described with reference to the drawings.

[0009] 1 to 5 show a lighting device 10. The lighting device 10 is a long base light, and is a ceiling-mounted lighting device that is installed on an installation surface, such as a ceiling surface.

[0010] The lighting device 10 includes a long fixture body 11 that is installed on a ceiling surface, and a long light source unit 12 that is detachably attached to the underside of the fixture body 11.

[0011] The device body 11 is made of metal and is formed long. The device body 11 is formed in a long and narrow box shape having a long base surface portion 15 which is a top plate, side surface portions 16 provided on both sides in the short direction (width direction) intersecting the longitudinal direction of the base surface portion 15, and end surface portions 17 provided on both ends in the longitudinal direction of the base surface portion 15 and the side surface portion 16. A storage portion 18 which is a storage space is formed inside the device body 11, and a long opening portion 19 is formed on the lower surface side facing the base surface portion 15 (the surface opposite to the base surface portion 15) between the side surface portion 16 and the end surface portion 17.

[0012] A wiring hole 20 for inserting a power line is provided approximately in the center in the longitudinal direction of the base surface portion 15. A plurality of mounting holes 21 for mounting to a ceiling surface are provided near both ends in the longitudinal direction of the base surface portion 15, including elongated holes for mounting to hanging bolts protruding from a ceiling structure and potbelly holes for screwing to the ceiling surface.

[0013] The lower edges of the side surface portion 16 and the end surface portion 17 are provided with mounting edges 16a, 17a to which the upper surface of the light source unit 12 abuts and is attached.

[0014] Inside the device body 11, a terminal block 24, a power supply unit 25, a pair of spring receiving fittings 26 as metal mounting members, and a wireless unit (wireless communication unit) 27 are attached.

[0015] The terminal block 24 is disposed on one end side of the longitudinal center (wiring hole 20) of the base surface portion 15 of the fixture body 11. A power line drawn from the outside into the fixture body 11 through the wiring hole 20 is electrically connected to the terminal block 24. The power line supplies AC power, which is external power from a commercial AC power source, for example. The terminal block 24 is electrically connected to the power supply unit 25 by a power input line wired along the inside of the fixture body 11.

[0016] The power supply unit 25 is provided long and is disposed along the longitudinal direction of the fixture body 11 on the other end side of the longitudinal center (wiring hole 20) of the base surface portion 15 of the fixture body 11 and on the opposite side to the terminal block 24. The power supply unit 25 is, for example, an AC-DC converter, and converts AC power supplied from a commercial AC power source through the terminal block 24 into a predetermined lighting power such as DC power and supplies it to the light source provided in the light source unit 12. Furthermore, the power supply unit 25 converts the AC power into a predetermined operating power such as DC power and supplies it to the wireless unit 27.

[0017] The power supply unit 25 supplies lighting power to the light source unit 12 through a power supply side lighting power supply line connected to the power supply unit 25, and also supplies operating power to the wireless unit 27 through a wireless connection line connected to the power supply unit 25, enabling them to communicate with each other.

[0018] The power supply unit 25 has a control unit, which controls a power supply circuit that generates lighting power and operating power, and controls communication with the wireless unit 27.

[0019] In the power supply unit 25, a power supply board on which power supply components and a control unit are mounted is covered by a metal power supply case 29. The power supply case 29 covers the peripheral surface of the power supply unit 25 as well as both end surfaces in the longitudinal direction.

[0020] The spring receiving metal fittings 26 are made of metal. The spring receiving metal fittings 26 are disposed at two locations on both longitudinal ends of the base surface portion 15 of the fixture body 11, between the end surface portion 17 at one end and the terminal block 24, and between the end surface portion 17 at the other end and the power supply unit 25. The spring receiving metal fittings 26 are disposed at a position closer to the end of the fixture body 11 than at least some of the mounting holes 21 and at a predetermined distance from the end surface portion 17 of the fixture body 11. The terminal block 24, the power supply unit 25, and the wireless unit 27 are disposed between the two spring receiving metal fittings 26.

[0021] The spring receiving metal fitting 26 has an attachment plate portion 31 attached to the base surface portion 15 of the instrument body 11, and a receiving plate portion 32 bent from the attachment plate portion 31 and disposed approximately perpendicular to the base surface portion 15. The receiving plate portion 32 is provided with positioning portions 33 extending outward in the width direction from both lower sides in the width direction and having a tip side bent at approximately a right angle toward the longitudinal direction of the instrument body 11, and a hook hole 34 provided inside the receiving plate portion 32. A protrusion 35 protrudes upward from the center in the width direction at the lower edge of the hook hole 34.

[0022] The wireless unit 27 performs wireless communication using a communication method conforming to a standard such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). The wireless unit 27 transmits and receives wireless signals using radio waves as a medium between a terminal capable of wireless communication, such as a remote control, a smartphone, a tablet, or a personal computer, and an external device, such as another lighting device 10. The provision of the wireless unit 27 enables control such as group control or scene control, in which light is adjusted according to a scene for each group made up of a plurality of lighting devices 10.

[0023] The wireless unit 27 receives operating power from the power supply unit 25 through a wireless connection line connected between the wireless unit 27 and the power supply unit 25, and is capable of communicating with the power supply unit 25 to send and receive wireless signals between the wireless unit 27 and external devices.

[0024] The wireless unit 27 includes a wireless housing 37 made of resin in the shape of a rectangular parallelepiped or cube, and a wireless circuit board 38 which is the wireless unit main body housed in the wireless housing 37. The wireless circuit board 38 includes a wireless communication circuit which performs wireless communication, an antenna which is connected to the wireless communication circuit and transmits and receives wireless signals, and a control unit which controls the wireless communication circuit to communicate with the power supply unit 25.

[0025] The wireless unit 27 is accommodated in the accommodation section 18 of the fixture body 11 and attached to the underside of the base surface section 15. The wireless unit 27 is disposed at one end in the longitudinal direction of the fixture body 11, between the end surface section 17 and the spring receiving metal fitting 26 at one end of the fixture body 11, the terminal block 24, and the power supply unit 25. The wireless unit 27 is disposed approximately in the center of the base surface section 15 in the lateral direction.

[0026] The light source unit 12 also includes a long chassis 41, a light source 42 attached to the underside of the chassis 41, a translucent cover 43 attached to the chassis 41 to cover the light source 42, end covers 44 attached to both longitudinal ends of the translucent cover 43, and two mounting springs 45 arranged on the upper side of the chassis 41.

[0027] The chassis 41 is made of metal and is long. The chassis 41 includes a long light source attachment section 47, rising sections 48 that rise upward from both short side sections of the light source attachment section 47, and bent sections 49 that are bent outward in an arc shape from the upper end of the rising sections 48.

[0028] The light source 42 is configured by a light source module having a long substrate 51 and a plurality of light emitting elements 52 mounted on the front side of the substrate 51 along the longitudinal direction. The substrate 51 is attached to the chassis 41 so that the rear side faces the lower side of the chassis 41. For the light emitting elements 52, for example, semiconductor light emitting elements such as LEDs and organic ELs are used. One end of a lighting power supply line on the unit side is electrically connected to the light source 42, and the other end of the lighting power supply line on the unit side is pulled out to the outside of the light source unit 12 and can be connected to a lighting power supply line on the power source side pulled out from the fixture body 11 via a connector.

[0029] The light-transmitting cover 43 is made of a resin through which radio waves can pass, has light-transmitting properties and light-diffusing properties, and transmits light from the light-emitting element 52. The light-transmitting cover 43 is formed so that its cross-sectional shape in the width direction has a convex curved shape facing forward.

[0030] On the upper surface side of the light-transmitting cover 43, a cover opening 54 in which the light source 42 is arranged in the central region in the width direction is formed along the longitudinal direction. Also, on the upper surface side of the light-transmitting cover 43, abutting parts 55 that can abut against the mounting edge parts 16a that are the lower parts of the side parts 16 on both sides of the side of the device body 11, and a positioning part 56 that protrudes upward from the abutting parts 55 and is inserted into the inside of the opening 19 of the device body 11 in the short direction to position the device, are formed along the longitudinal direction at both side regions of the cover opening 54 that are both side regions in the width direction. Also, on the upper surface side of the light-transmitting cover 43, a lower engaging part 57 that engages with the lower surface side of the chassis 41, and an upper engaging part 58 that has a cross section of a substantially L-shape that engages with the bent part 49 of the rising part 48 of the chassis 41 are provided along the longitudinal direction at positions closer to the center in the width direction than the abutting parts 55 and the positioning parts 56.

[0031] The end cover 44 is made of a resin through which radio waves can pass, but may be either non-translucent or translucent. The end cover 44 is attached to an end of the translucent cover 43 held by the chassis 41, and holds the translucent cover 43 to the chassis 41.

[0032] The mounting spring 45 is attached by mounting members 60 at two locations near both ends in the longitudinal direction on the upper surface side of the chassis 41. The mounting spring 45 is formed, for example, by a torsion spring, and has a pair of coil portions 61 held by the mounting member 60, and a substantially U-shaped hook portion 62 extending therefrom that connects one ends of the pair of coil portions 61, and this hook portion 62 is engageable with the hook hole 34 of the spring receiving metal fitting 26. The other ends of the pair of coil portions 61 are attached to the mounting member 60. The mounting spring 45 is disposed such that a spring force acts on the hook portion 62 in a direction from the upper side of the chassis 41 toward the lower side through the end side. The mounting spring 45 is configured such that, with the hook portion 62 pulled up from the chassis 41 against the spring force, it is inserted into the hook hole 34 of the spring receiving metal fitting 26 of the fixture body 11 and hooked onto the protrusion 35, thereby temporarily suspending the light source unit 12 on the fixture body 11, and further, by pushing up the light source unit 12, the spring force causes the light source unit 12 to be pulled up and attached to the fixture body 11, and the attached state is maintained. Note that the mounting spring 45 is not limited to a torsion spring, and a leaf spring or the like may be used.

[0033] As shown in FIG. 3, when the light source unit 12 is attached to the fixture body 11, the chassis 41 of the light source unit 12 is disposed in the opening 19 of the fixture body 11.

[0034] The width in the short side direction of the chassis 41 is smaller than the width in the short side direction of the opening 19 of the device body 11 (the width between the side portions 16 on both sides), and gaps 70 are formed between both sides of the chassis 41 in the short side direction and both side portions 16 on both sides of the device body 11, and these gaps 70 are covered with a resin translucent cover 43. Therefore, radio waves can pass through the gaps 70, and the wireless unit 27 communicates wirelessly with an external device through the gaps 70.

[0035] The wireless unit 27 is disposed in an opposing region where the base surface portion 15 of the device body 11 and the chassis 41 face each other. A wireless circuit board 38 having an antenna of the wireless unit 27 mounted thereon is disposed midway between the base surface portion 15 of the device body 11 and the chassis 41, closer to the base surface portion 15 of the device body 11 than the chassis 41.

[0036] The wireless unit 27 is disposed between the inside of the fixture body 11 and the chassis 41 of the light source unit 12, surrounded by six metal surfaces 71. The six metal surfaces 71 include the base surface portion 15 of the fixture body 11, the side surface portions 16 on both sides of the fixture body 11, the receiving plate portion 32 of the spring receiving metal fitting 26 disposed on one end side of the fixture body 11 or the end surface portion 17 on one end side of the fixture body 11, the end surface on one end side of the power supply case 29 of the power supply unit 25 disposed on the other end side of the fixture body 11 facing the wireless unit 27 or the end surface 17 on the other end side of the fixture body 11, and the chassis 41 of the light source unit 12 disposed in the opening 19 of the fixture body 11.

[0037] In this way, the wireless unit 27 is arranged between the inside of the fixture body 11 and the chassis 41 of the light source unit 12, surrounded on all sides by six metal surfaces 71. Therefore, the radio waves of the wireless signal emitted from the wireless unit 27 are reflected by the six metal surfaces 71 around the wireless unit 27 and easily pass through the gap 70 to the outside via the plastic translucent cover 43. Also, the radio waves that pass through the plastic translucent cover 43 and the gap 70 from the outside to enter between the inside of the fixture body 11 and the chassis 41 of the light source unit 12 are reflected by the six metal surfaces 71 around the wireless unit 27 and easily received by the wireless unit 27.

[0038] Therefore, the lighting device 10 communicates wirelessly through the gap 70 between the fixture body 11 and the chassis 41, and since the wireless unit 27 is surrounded by six metal surfaces 71, radio waves can be reflected, which leads to improved radio wave strength and improves wireless communication quality without the need to provide a cutout or the like for wireless communication in the fixture body 11.

[0039] In addition, since the wireless unit 27 is arranged at one end of the fixture body 11 in the longitudinal direction and is close to the receiving plate portion 32 of the spring receiving bracket 26 arranged at one end of the fixture body 11 and the end face portion 17 at one end of the fixture body 11, it is expected that the reflection strength of radio waves by the spring receiving bracket 26 and end face portion 17 at the one end will be improved.

[0040] The power supply unit 25 and the wireless unit 27 may be disposed in the light source unit 12. When the wireless unit 27 is disposed on the upper surface side of the chassis 41 of the light source unit 12, it is preferable that at least a part of the wireless unit 27, that is, a wireless circuit board 38 on which an antenna is mounted, is disposed in a position protruding toward the base surface portion 15 of the fixture body 11 beyond the chassis 41. With this arrangement, radio waves from the wireless unit 27 toward the gap 70 or radio waves from the gap 70 toward the wireless unit 27 are less likely to be blocked by the chassis 41, improving the quality of wireless communication.

[0041] Furthermore, the fixture body 11 may be in a so-called inverted Fuji shape, in which reflective surfaces are provided on both side surfaces 16. Furthermore, the lighting device 10 may be a recessed lighting device that is recessed into the ceiling surface.

[0042] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0043] 10. Lighting Equipment 11. Equipment body 12 Light source unit 15 Base surface 16 Side part 17 End section 19 Opening 27 Wireless Unit 41 Chassis 42 Light source 43 Translucent cover 70 Gap 71 Metal surface

Claims

1. a metal device body having a long base surface portion, side surfaces on both sides in a short direction intersecting the long direction of the base surface portion, and end surface portions on both ends in the long direction of the base surface portion, and an opening is provided on a surface facing the base surface portion between the side surface portions and the end surface portions; a light source unit including a long metallic chassis detachably attached to the device body and placed in the opening, a light source arranged on the chassis, and a translucent cover attached to the chassis to cover the light source, the width of the chassis in the short side direction being smaller than the width of the opening of the device body in the short side direction, gaps being provided between both side portions of the chassis in the short side direction and the side portions on both sides of the device body, and the gaps being covered with the translucent cover; a wireless unit disposed between the inside of the fixture body and the chassis of the light source unit and surrounded by six metal surfaces; A lighting device comprising:

2. The wireless unit is disposed on one end side in the longitudinal direction of the fixture body and the light source unit.

2. The lighting device according to claim 1 .

3. The wireless unit is disposed on the chassis of the light source unit, and at least a portion of the wireless unit protrudes toward the fixture body from the chassis.

3. The lighting device according to claim 1, wherein the light source is a light source.

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