Lighting fixtures

Abstract

To provide a lighting fixture that allows light-emitting elements constituting a night light to be mounted in the mounting area of ​​multiple power supply components, and that also makes it easier to reduce the number of components. [Solution] The lighting fixture 1 comprises a fixture body 10, a substrate 15 fixed to the fixture body 10, a plurality of first light-emitting elements 30 mounted so as to surround the central part of the lower surface 15c of the substrate 15, a plurality of power supply components mounted on the central part of the lower surface 15c, a second light-emitting element mounted on the central part of the lower surface 15c, and a power supply cover 45 fixed to the fixture body 10 and covering the light-emitting side of the central part of the lower surface 15c. The power supply cover 45 includes a cover body 60 and a cap 70 that, together with the cover body 60, covers the light-emitting side of the power supply components and the second light-emitting element and constitutes at least a part of a through hole that accommodates the first part of the power supply wire. The cap 70 is made of a light-transmitting material. The cap 70 includes a lens 71 having an overlapping portion that overlaps the second light-emitting element in the height direction.

Description

[[Technical Field]]

[0001] The present disclosure relates to a lighting fixture. [[Background Art]]

[0002] Conventionally, as a lighting fixture, there is a ceiling light described in Patent Document 1. This ceiling light includes a fixture main body having a through hole in a central portion, a substrate fixed to the fixture main body and having a through hole in a central portion, a plurality of LEDs mounted on the substrate, and a diffusion cover that covers light emission sides of the plurality of LEDs and has a substantially circular shape in a plan view when viewed from a height direction. [[Prior Art Documents]] [[Patent Documents]]

[0003] [[Patent Document 1]] Japanese Patent Application Laid-Open No. 2019-129103 [[Summary of Invention]] [[Problem to be Solved by Invention]]

[0004] When a plurality of power supply components are mounted on a substrate, the plurality of power supply components must be covered to prevent electric shock. Further, when a plurality of first light-emitting elements are mounted so as to surround a through hole provided in a central portion of the substrate, and a plurality of power supply components are mounted inside the plurality of first light-emitting elements, a power supply cover covering the plurality of power supply components needs to be installed around the through hole of the substrate. In such a case, it is a natural arrangement that the second light-emitting element constituting a night light is disposed in the mounting area of the plurality of power supply components that is separated from the mounting area of the plurality of first light-emitting elements that emit illumination light.

[0005] However, in order to achieve this arrangement, the covering portion of the power supply cover that encloses the second light-emitting element must be made transparent. This requires a separate component to make the covering portion of the second light-emitting element transparent, increasing the number of components and thus the cost. Therefore, the purpose of this disclosure is to provide a lighting fixture that can mount light-emitting elements constituting a night light in the mounting area of ​​multiple power supply components, and that can easily reduce the number of components. [Means for solving the problem]

[0006] To solve the above problems, the lighting fixture according to the present disclosure comprises a fixture body, a substrate fixed to the fixture body, a plurality of first light-emitting elements mounted on one side of the substrate so as to surround the central part, a plurality of power supply components mounted on the central part of the one side, a second light-emitting element mounted on the central part of the one side, and a power supply cover fixed to the fixture body and covering the light-emitting side of the central part of the one side, wherein the power supply cover includes a cover body and a cap that, together with the cover body, covers the light-emitting side of the power supply components and the second light-emitting element and constitutes at least a part of a through hole for accommodating a part of the power supply wire, the cap is made of a light-transmitting material and the cap includes a lens having an overlapping portion that overlaps the second light-emitting element in the height direction. [Effects of the Invention]

[0007] According to the lighting fixture described herein, a component that restrains a portion of the power lines to suppress the reflection of the power lines in the illumination light also serves the function of emitting light from the second light-emitting element. Therefore, the second light-emitting element that constitutes the night light can be mounted in the mounting area of ​​multiple power supply components, and the number of components can be easily reduced. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a lighting fixture according to one embodiment of the present disclosure, as seen from a diagonally downward angle. [Figure 2] This is a perspective view of the lighting fixture with the diffuser cover removed, seen from a diagonal downward angle. [Figure 3]This is a perspective view of the lighting fixture from a diagonal downward angle, with the power supply cover, which further protects the electronic components, removed from the state shown in Figure 2. [Figure 4] This is a perspective view showing the state after the translucent resin sheet covering the substrate has been removed from the state shown in Figure 3. [Figure 5] This is a perspective view showing the state after the reflective sheet has been removed from the state shown in Figure 4. [Figure 6] This is a plan view of a circuit board on which multiple power supply components, multiple first light-emitting elements, and second light-emitting elements are mounted, as seen from below in the height direction. [Figure 7] This is a perspective view of the cover body, taken from a diagonal downward angle in the height direction. [Figure 8] This is a perspective view of the cover body, taken from a diagonal upward angle in the height direction. [Figure 9] This is a perspective view that is realized when we assume that the cap is no longer visible from the state shown in Figure 2. [Figure 10] This is a perspective view of the movement restricting member, seen from an oblique angle above. [Figure 11] This is a perspective view of the cap from a diagonal downward angle. [Figure 12] This is a perspective view of the cap from a diagonal upward angle. [Figure 13] This is a cross-sectional view of a lighting fixture including the optical axis of the second light-emitting element, illustrating the constraint structure of the portion of the first part of the power line that extends in a substantially orthogonal direction. [Figure 14] This is a cross-sectional view illustrating the constraint structure of the portion of the first part of the power line that extends in the height direction. [Figure 15] This is a perspective view illustrating the relative position of some of the power lines to the cap. [Modes for carrying out the invention]

[0009] The embodiments relating to this disclosure will be described in detail below with reference to the accompanying drawings. Note that if multiple embodiments or modifications are included below, it is intended from the outset that new embodiments may be constructed by appropriately combining their characteristic features. In the following embodiments, the same reference numerals are used for the same components in the drawings, and redundant explanations are omitted. Furthermore, multiple drawings include schematic diagrams, and the dimensional ratios such as length, width, and height of each component do not necessarily match between different drawings. The numerous components described below include several optional components that are not essential. Also, in this specification, the term "omitted" may be used to allow for manufacturing tolerances (manufacturing variations), and may be used to describe the general shape of components, etc.

[0010] In the following description, when terms related to the vertical direction such as down, up, lower side, and upper side are used, they indicate the direction when the lighting fixture 1 is installed on the ceiling. Also, when the height direction is mentioned in the following description, that height direction refers to the height direction of the lighting fixture 1, and when the orthogonal direction is mentioned, that orthogonal direction refers to the direction perpendicular to the height direction. In this embodiment, the lighting fixture 1 is installed on the ceiling with its height direction approximately coinciding with the vertical direction.

[0011] The lighting fixture 1 of the embodiment has a shape that allows the center and radial direction to be identified in a plan view when viewed from below in the height direction. More specifically, the diffusion cover 50 of the embodiment has a dome shape and a substantially circular shape in a plan view when viewed from below in the height direction. In the following description, when "radial direction" is mentioned, it refers to the radial direction of the diffusion cover 50; when "inside" is mentioned, it refers to the radially inward direction; and when "outside" is mentioned, it refers to the radially outward direction. The central axis of the lighting fixture 1 coincides with the central axis of the diffusion cover 50.

[0012] FIG. 1 is a perspective view of a lighting fixture 1 according to an embodiment of the present disclosure when viewed from an obliquely lower side. The lighting fixture 1 is a ceiling light and is attached to the ceiling of a building. Although not described in detail since it is a well-known structure, the lighting fixture 1 includes an adapter (not shown) that is attached to a fixture attachment portion (not shown) provided on the ceiling of a building. The lighting fixture 1 also includes: a fixture main body (base member) 10 that is stationary relative to the adapter and disposed along the ceiling substantially parallel to the ceiling; a light-emitting portion 20 that is stationary relative to the fixture main body 10 (see FIGS. 4 and 5); and a diffusion cover 50 that is disposed to cover the light-emitting portion 20 and constitutes a light-transmissive cover.

[0013] The fixture main body 10 is made of metal or resin. The diffusion cover 50 has a downwardly convex dome shape, and has a substantially circular shape in a plan view when viewed from the lower side in the height direction. The diffusion cover 50 is made of a light-transmissive resin material, such as polycarbonate, acrylic, silicone, or the like, and diffuses light from the light-emitting portion 20 and emits the light downward. In the present embodiment, the light-emitting portion 20 emits light based on electric power supplied from the outside via the adapter, but the light-emitting portion 20 may emit light based on electric power supplied from the outside without going through the adapter.

[0014] FIG. 2 is a perspective view of the lighting fixture 1 with the diffusion cover 50 removed, when viewed from an obliquely lower side. As shown in FIG. 2, the lighting fixture 1 has a plurality of receivers 40 attached to the lower surface 10a of the fixture main body 10 by locking (hooking), screwing, or the like in a state of being arranged at substantially equal intervals in the circumferential direction. The receiver 40 has a recess 41 that opens outward in the radial direction. The radial direction is included in the orthogonal direction. The diffusion cover 50 has a plurality of protruding portions (not shown) that protrude radially inward on the inner peripheral surface of the upper edge portion. The plurality of protruding portions are arranged on the diffusion cover 50 at substantially equal intervals in the circumferential direction. A part of the inner surface of the recess 41 is defined by a locking portion (not shown) that protrudes radially outward to lock the protruding portion.

[0015] In a state where the circumferential position of the protruding portion is different from the circumferential position of the receiving members 40, the diffusion cover 50 is brought into contact with the lower surface 10a of the fixture main body 10 so as to cover the plurality of receiving members 40. Thereafter, when the diffusion cover 50 is relatively rotated to one side in the circumferential direction with respect to the fixture main body 10, the diffusion cover 50 is elastically deformed radially outward, whereby the tapered distal end portion of the protruding portion rides over the locking portion, and the protruding portion fits into the recess 41. By this fitting, the protruding portion is locked to the locking portion, and the diffusion cover 50 is fixed to the plurality of receiving members 40.

[0016] Fig. 3 is a perspective view of the lighting fixture 1 in a state where a power supply cover 45 that further protects a power supply component 5 is removed from the state shown in Fig. 2, as viewed obliquely from below. As shown in Fig. 3, the outer edge of the fixture main body 10 has a substantially circular shape, and a through hole 11 is provided in the central portion of the fixture main body 10. In the present embodiment, the through hole 11 is a cylindrical hole. The lighting fixture 1 includes a substrate 15 sandwiched between a resin sheet 35 described later and the lower surface 10a of the fixture main body 10 at a radially inner central portion. The substrate 15 does not have to be fixed by being sandwiched, and may be attached to the lower surface 10a of the fixture main body 10 by a fixing means, for example, a screw, an adhesive, or the like.

[0017] In the present embodiment, when viewed from the height direction (the thickness direction of the substrate 15), the substrate 15 has a substantially rectangular outer edge 15a. Here, the term "substantially rectangular" refers to a shape whose general outline is a rectangle. Substantially rectangular includes shapes where corner portions are missing due to chamfering or the like compared to a perfect rectangle, and further includes shapes where at least one of a concave portion and a convex portion is provided at one or more positions on the outer edge of a side. When viewed from the height direction (the thickness direction of the substrate 15), the outer edge of the substrate may have a shape other than substantially rectangular, for example, may have a shape such as substantially square, substantially circular, or substantially elliptical. The substrate 15 has a through hole 15b in the central portion. In the present embodiment, the through hole 15b is a cylindrical hole. The through hole 15b is provided at a position overlapping the through hole 11 in the height direction. The central axis of the through hole 11, the central axis of the through hole 15b, and the central axis of the lighting fixture 1 are located on substantially the same straight line.

[0018] Multiple power supply components 5 are mounted in the area surrounding the through-hole 15b on the lower surface (mounting surface) 15c of the substrate 15. The lower surface 15c constitutes one side surface. The multiple power supply components 5 consist of electronic components included in at least one of a power supply device that supplies power to the light-emitting unit 20 and a control device that controls the light emission of the light-emitting unit 20. Here, light emission control refers to control related to the light emission of the light-emitting unit 20, and light emission control includes dimming control, color adjustment control, and control of turning on or off. The power supply device converts AC power from an external source into DC power and steps it down to an appropriate voltage. The control device controls the turning on and off of the lighting fixture 1.

[0019] For example, when the control device receives a wireless signal from a remote control (not shown) indicating that the first light-emitting element (see Figure 4) 30 is turned on, it turns on the switching unit for controlling the light source of the first light-emitting element 30 mounted on the power supply unit. Conversely, when the control device receives a wireless signal from the remote control indicating that the first light-emitting element 30 is turned off, it turns off the switching unit for controlling the light source of the first light-emitting element 30. When the device is turned on, power is supplied to the first light-emitting element 30 and light is emitted from the first light-emitting element 30. When the device is turned off, power to the first light-emitting element 30 is cut off and light is no longer emitted from the first light-emitting element 30. The switching unit is composed of, for example, a transistor.

[0020] As shown in Figure 2, the light-emitting sides of multiple power supply components 5 are covered with a power supply cover 45 to prevent electric shock. The fixing structure of the power supply cover 45 to the fixture body 10 will be described in detail later. The light-emitting sides of multiple first light-emitting elements 30 on the substrate 15 are covered with a translucent resin sheet 35. The resin sheet 35 is substantially similar to the substrate 15 when viewed from the height direction and has a substantially rectangular outer edge that is larger than the substrate 15. The resin sheet 35 includes a cylindrical hole 35a in the center and notches 35b that communicate with the cylindrical hole 35a and are located at substantially equal intervals in the circumferential direction. The resin sheet 35 is formed, for example, by injection molding and is made of polycarbonate, acrylic, or silicone.

[0021] The resin sheet 35 has the same number of optical members 55 as the number of first light-emitting elements 30. In this embodiment, all optical members 55 are included in the resin sheet 35 and are integrally connected. Each optical member 55 is arranged so as to overlap one of the first light-emitting elements 30 when viewed from the height direction. The optical member 55 is a lens positioned on the light-emitting side of the first light-emitting element 30.

[0022] Figure 4 is a perspective view showing the state in which the translucent resin sheet 35 covering the substrate 15 has been removed from the state shown in Figure 3. As shown in Figure 4, the light-emitting unit 20 comprises a plurality of first light-emitting elements 30. The lighting fixture 1 also has a reflective sheet 25. The reflective sheet 25 is sandwiched between the substrate 15 and the resin sheet 35. The reflective sheet 25 is a sheet-like material with a higher reflectivity to light than the substrate 15, and reflects light that is directed directly from the first light-emitting elements 30 to the reflective sheet 25, as well as light that is directed indirectly from the first light-emitting elements 30 to the reflective sheet 25. The reflective sheet 25 has a cylindrical hole 25a in the center and a plurality of notches 25b that communicate with the cylindrical hole 25a and are located at approximately equal intervals in the circumferential direction. The plurality of notches 25b correspond to the notches 35b of the resin sheet 35, and the notches 25b include portions that overlap the notches 35b in the height direction.

[0023] Examples of the reflective sheet 25 include polyester film. The reflective sheet 25 plays a role in increasing the light extraction efficiency of each first light-emitting element 30. Through holes (not shown) are provided at the positions where each first light-emitting element 30 is positioned on the reflective sheet 25. Note that the lighting fixture of this disclosure does not necessarily have a reflective sheet. The resin sheet 35 is fixed to the fixture body 10 with screws in a state where the notch 35b overlaps the notch 25b when viewed from the height direction. In this embodiment, the resin sheet 35 is fixed to the fixture body 10 with screws, but the resin sheet 35 may also be fixed to the fixture body 10 with adhesive, or it may be fixed to the outer edge of the substrate 15 with screws or adhesive.

[0024] Figure 5 is a perspective view showing the state in which the reflective sheet 25 has been removed from the state shown in Figure 4, and Figure 6 is a plan view of the substrate 15 on which the multiple power supply components 5, multiple first light-emitting elements 30, and second light-emitting elements 16 are mounted, as seen from below in the height direction. As shown in Figures 5 and 6, the lighting fixture 1 includes a second light-emitting element 16 mounted on the lower surface 15c of the substrate 15. The second light-emitting element 16 constitutes the light source of the night light. The multiple first light-emitting elements 30 are arranged outside the multiple power supply components 5 and the second light-emitting elements 16 so as to surround the multiple power supply components 5 and the second light-emitting elements 16.

[0025] In this embodiment, the first light-emitting element 30 and the second light-emitting element 16 are composed of LED (light-emitting diode) chips. However, the light-emitting elements mounted on the substrate may be composed of semiconductor laser element chips or the like, or of semiconductor light-emitting element chips other than LED chips. Alternatively, the first light-emitting element 30 may be composed of an organic EL (Electro-Luminescence) element or an inorganic EL element chip.

[0026] Next, the structure of the power supply cover 45 will be described in detail. Referring to Figure 2, the power supply cover 45 defines a donut-shaped chamber 18 that is sealed on the lower side in the height direction. The power supply cover 45 has a cover body 60 and a cap 70. Figure 7 is a perspective view of the cover body 60 as seen from the lower side in the height direction, and Figure 8 is a perspective view of the cover body 60 as seen from the upper side in the height direction.

[0027] As shown in Figure 7, the cover body 60 is an annular, one-piece resin member and has a first through-hole 61 in its center, which is a substantially cylindrical hole. The cover body 60 also has a second through-hole 62 located between the first through-hole 61 and the outer edge 67 in a part of its circumferential direction. The cover body 60 has a fixing piece 64 that protrudes radially outward from the annular wall portion 63 defining the first through-hole 61 toward the second through-hole 62. The fixing piece 64 is provided with a screw hole 64a and a mounting base 64c including a through-hole 64b. A movement restricting member 85 (see Figures 9 and 10) is placed on the mounting base 64c.

[0028] As shown in Figure 7, the outer surface of the cover body 60 has one or more second protrusions 68 that project outward along the power supply component 5, and in this embodiment, there are multiple second protrusions 68. Also, as shown in Figure 8, the inner surface of the cover body 60 has recesses 69 at locations corresponding to each second protrusion 68. A part of the corresponding power supply component 5 is housed in the recesses 69. By adopting this configuration, the power supply cover 45 can be made compact, so that the light emitted from the second light-emitting element 30 toward the center is less likely to be reflected or absorbed by the power supply cover 45 and more likely to pass outside the cover 45. Therefore, a bright and clean illumination light can be emitted with a bright central part.

[0029] Figure 9 is a perspective view assuming that the cap 70 is no longer visible from the state shown in Figure 2, and Figure 10 is a perspective view of the movement restricting member 85 viewed from diagonally above. Figure 11 is a perspective view of the cap 70 viewed from diagonally below, and Figure 12 is a perspective view of the cap 70 viewed from diagonally above. As shown in Figure 9, when the cap 70 is removed from the power cover 45, the second light-emitting element 16 mounted on the substrate 15 becomes visible when viewed from the height direction. Also, as shown in Figures 9 and 10, the movement restricting member 85 has a substantially L-shaped housing recess 85a for housing the power line 81, and the power line 81 is housed in the housing recess 85a.

[0030] As shown in Figure 10, the movement restricting member 85 has a pair of locking portions 85b at its upper end. On the other hand, as shown in Figure 11, the cap 70 has a groove 70a that extends in the height direction and has a closed lower end, and as shown in Figure 12, it has a pair of projections 70b at its upper end. The movement restricting member 85 and the cap 70 are integrated by engaging a pair of locking claws 85c, which are provided on the tip side of the pair of locking portions 85b, with the outer side surfaces 70c of the pair of projections 70b.

[0031] During this integration, the approximately L-shaped opening of the approximately L-shaped receiving recess 85a is closed by the groove 70a. The movement restricting member 85 and the cap 70 work together to define an approximately L-shaped passage. The approximately L-shaped passage is an example of a through-hole that accommodates a portion of the power supply line 81 (first portion 81a, see Figures 13 and 14). The first portion 81a of the power supply line 81 is constrained by being housed in the approximately L-shaped passage, thereby restricting the movement of a portion of the power supply line 81. Figure 13 is a cross-sectional view of the lighting fixture 1 including the optical axis of the second light-emitting element 16, and is a cross-sectional view illustrating the restraint structure of the portion of the first portion 81a that extends in an approximately orthogonal direction. As shown in Figure 13, the portion of the first portion 81a that extends in an approximately orthogonal direction is restrained by being sandwiched between the projection 70b of the cap 70 and the movement restricting member 85.

[0032] As shown in Figure 11, a pair of first protrusions 70d are provided in the cap 70 within the groove 70a that extends in the height direction, protruding from the bottom surface of the groove 70a and extending in the height direction. Figure 14 is a cross-sectional view illustrating the restraint structure of the portion of the first part 81a that extends in the height direction. As shown in Figure 14, the portion of the first part 81a that extends in the height direction is restrained by being sandwiched between the first protrusions 70d and the movement restricting member 85.

[0033] As shown in Figure 15, the cap 70 has a movement restricting portion 70e positioned circumferentially with respect to the groove portion 70a, the movement restricting portion 70e including a first plate portion 73a extending substantially in the height direction and a second plate portion 73b projecting radially inward from the lower end of the first plate portion 73a. The second portion 81b of the power supply wire 81 is hooked onto the upper side of the second plate portion 73b. As shown in Figure 15, the power supply wire 81 extends from the power supply unit, passes through a substantially L-shaped passage, and then extends from the lower opening of the substantially L-shaped passage, via the upper side of the second plate portion 73b, to an adapter attached to the fixture mounting portion on the ceiling. By restricting the position of the power supply wire 81 with the substantially L-shaped passage and the movement restricting portion 70e, the excess portion of the power supply wire 81 is effectively constrained, and the power supply wire 81 is prevented from being reflected in the illumination light.

[0034] As shown in Figure 2, the cover body 60 has a plurality of first protrusions 65 that are spaced apart in the circumferential direction on the peripheral edge of the upper end and protrude radially outward. The first protrusions 65 have through holes 65a that extend in the height direction. When viewed from the height direction, the first protrusions 65 have a planar shape corresponding to the notches 35b and 25b, and overlap the notches 35b and 25b in the height direction. The first protrusions 65 include portions that are located inside the notches 35b and 25b. The cover body 60 is screw-fixed to the device body 10 with the substrate 15 sandwiched between the through holes 65a.

[0035] The cap 70 is fitted into the second through-hole 62 of the cover body 60 so as to cover the light-emitting side of the second through-hole 62. As shown in Figure 11, the cap 70 has a plate portion 70f that extends substantially perpendicularly and includes a portion located between the groove portion 70a and the movement restricting portion 70e in the circumferential direction. The plate portion 70f has a screw hole 70g. With the cap 70 fitted into the second through-hole 62, the screw hole 70g of the cap 70 aligns in the height direction with the screw hole 64a (see Figure 7) of the fixing piece 64 of the cover body 60. The cap 70 is fixed to the cover body 60 and the device body 10 by inserting the shaft of a screw (not shown) through the screw hole 70g and the screw hole 64a and then tightening it into the device body 10.

[0036] As shown in Figures 11 to 13, the cap 70 has a lens 71. As shown in Figure 13, when the cap 70 is fixed to the cover body 60 and the device body 10, the optical axis of the second light-emitting element 16 is positioned substantially on the same line as the central axis of the lens 71. The cap 70 is made of a transparent resin material, such as transparent acrylic, transparent polycarbonate, or transparent silicone-based resin material, or transparent glass material. On the other hand, the cover body 60 is made of a white resin material. Polycarbonate or polybutylene terephthalate can be suitably used as the resin material constituting the cover body 60.

[0037] By constructing the cap 70 from a transparent material, light emitted downwards in the height direction from the second light-emitting element 16 passes through the lens 71 and the diffuser cover 50 and is emitted downwards. Furthermore, by constructing the cover body 60, which occupies most of the power supply cover 45, from a white resin material, the reflectivity of the light emitted from the first light-emitting element 30 and reaching the cover body 60 can be increased. Therefore, the light extraction efficiency can be increased, and bright illumination light can be easily emitted.

[0038] Next, the effects of lighting fixture 1 will be explained. When multiple power supply components are mounted on a circuit board, these components must be covered to prevent electric shock. Furthermore, when multiple first light-emitting elements are mounted around a through-hole provided in the center of the circuit board, and multiple power supply components are mounted inside the multiple first light-emitting elements, a power supply cover will be installed around the through-hole on the circuit board to cover the multiple power supply components.

[0039] In that case, it is natural to place the second light-emitting element that constitutes the night light in the mounting area of ​​the multiple power supply components, which is separate from the mounting area of ​​the multiple first light-emitting elements that emit illumination light. However, in that case, in order to make the illumination light bright and beautiful, it is preferable to make the outer surface of the power supply cover out of a material with high light reflectivity to increase the light extraction efficiency, but there is a problem that it is difficult to make the power supply cover out of a light-transmitting material.

[0040] Therefore, when the second light-emitting element constituting the night light is placed in the mounting area of ​​multiple power supply components, which is separate from the mounting area of ​​multiple first light-emitting elements that emit illumination light, the covering portion of the power supply cover that covers the second light-emitting element needs to be transparent. This requires a separate component solely for making the covering portion of the second light-emitting element transparent, increasing the number of components and thus the cost.

[0041] In contrast, the lighting fixture 1 of the present disclosure comprises a fixture body 10, a substrate 15 fixed to the fixture body 10, a plurality of first light-emitting elements 30 mounted on the lower surface 15c of the substrate 15 so as to surround the central part, a plurality of power supply components 5 mounted on the central part of the lower surface 15c, a second light-emitting element 16 mounted on the central part of the lower surface 15c, and a power supply cover 45 fixed to the fixture body 10 and covering the light-emitting side of the central part of the lower surface 15c. The power supply cover 45 includes a cover body 60 and a cap 70 that, together with the cover body 60, covers the light-emitting sides of the power supply components 5 and the second light-emitting element 16 and constitutes at least a part of a through hole (in this embodiment, a substantially L-shaped passage) that accommodates the first portion 81a of the power supply line 81. The cap 70 is made of a light-transmitting material and includes a lens 71 having an overlapping portion that overlaps the second light-emitting element 16 in the height direction.

[0042] In other words, according to the lighting fixture 1 of this disclosure, a power line positioning component is used to suppress reflection of the power line 81 onto the illumination light, and this component is made of a transparent material, with a lens 71 placed on the component to emit light cleanly from the second light-emitting element 16. Therefore, since the power line positioning component also has the function of emitting light from the second light-emitting element 16, not only can the second light-emitting element 16 that constitutes a night light be mounted in the mounting area of ​​multiple power supply components 5, but a dedicated component for emitting light from the second light-emitting element 16 can be omitted, and the number of components can be reduced.

[0043] A movement restricting member 85 may be provided in conjunction with the cap 70 to restrict the movement of the first portion 81a of the power line 81. With this configuration, the movement of the power line 81 can be restricted, which not only more effectively suppresses the reflection of the power line 81 onto the lighting light, but also prevents the power line 81 from becoming an obstacle to the installation work when installing the lighting fixture 1 on the ceiling.

[0044] The cap 70 may include a movement restricting section 70e that restricts the movement of the second portion 81b (see Figure 15) of the power line 81. With this configuration, not only can reflection of the power line 81 into the illumination light be prevented with near certainty, but the power line 81 can also be effectively prevented from becoming an obstacle to the installation work when the lighting fixture 1 is installed on the ceiling.

[0045] As shown in Figure 2, in a plan view from the light-emitting side in the height direction, the cover body 60 may have an annular shape, and in this plan view, the cap 70 may be located inside the outer edge 67 (see Figure 7) of the cover body 60. This configuration makes it easier to arrange multiple first light-emitting elements 30 that emit illumination light other than night light more symmetrically and orderly on the outside of the power supply cover 45. Therefore, it is possible to emit beautiful and stylish illumination light. In addition, the outer surface of the light-emitting side of the cover body 60 may be white. This configuration makes it possible to make the illumination light bright and beautiful.

[0046] This disclosure is not limited to the embodiments and their modifications, and various improvements and modifications are possible within the scope of the claims of this application and their equivalents. For example, the above embodiment describes a case in which the movement of the first portion 81a of the power line 81 is restricted by a passage defined by the cap 70 and the movement restricting member 85 working together. However, the movement of a portion of the power line may also be restricted by housing a portion of the power line in a passage (through hole) defined by the cap alone.

[0047] The case in which the resin sheet 35 includes a lens corresponding to each first light-emitting element 30 has been described, and the case in which the resin sheet 35 includes multiple lenses has also been described. Here, the multiple lenses may consist of two or more different lenses. Furthermore, the resin sheet may have fewer lenses than the number of first light-emitting elements, and there may be first light-emitting elements for which no corresponding lens exists. Alternatively, the resin sheet may not have any lenses at all.

[0048] The case described above is where the outer surface of the light-emitting side of the cover body 60 is made of white resin. However, to increase the light reflectivity, the outer surface of the light-emitting side of the cover body may have a metal layer, such as an aluminum layer, formed on a base material made of metal or resin by vapor deposition, plating, sputtering, etc., and may be mirror-finished by polishing, etc. Alternatively, a white coating containing a white pigment may be formed on the outer surface of the light-emitting side of the cover body. Alternatively, the cover body may be made of a metal such as silver, aluminum, or stainless steel, and a part of that metal may be mirror-finished. Alternatively, the cover body may be formed by fixing a mirror-finished aluminum material to a base material made of metal or resin. Alternatively, the outer surface of the power supply cover does not have to have a white portion; for example, the entire power supply cover may be made of transparent resin.

[0049] Furthermore, the lighting fixtures of this disclosure may have the following configurations. Configuration 1: A lighting fixture comprising: a fixture body; a substrate fixed to the fixture body; a plurality of first light-emitting elements mounted on one side of the substrate so as to surround the central part; a plurality of power supply components mounted on the central part of the one side; a second light-emitting element mounted on the central part of the one side; and a power supply cover fixed to the fixture body and covering the light-emitting side of the central part of the one side, wherein the power supply cover includes a cover body and a cap that, together with the cover body, covers the light-emitting side of the power supply components and the second light-emitting element and constitutes at least a part of a through hole for accommodating a part of the power line, wherein the cap is made of a light-transmitting material and the cap includes a lens having an overlapping portion that overlaps the second light-emitting element in the height direction. Configuration 2: The lighting fixture according to Configuration 1, further comprising a movement restricting member that, in conjunction with the cap, restricts the movement of the first portion of the power line. Configuration 3: The lighting fixture according to Configuration 1 or 2, wherein the cap includes a movement restricting portion for restricting the movement of the second portion of the power line. Configuration 4: A lighting fixture according to any one of Configurations 1 to 3, wherein, in a plan view when viewed from the light-emitting side in the height direction, the cover body has an annular shape, and in the plan view, the cap is located inside the outer edge of the cover body. Configuration 5: A lighting fixture according to any one of Configurations 1 to 4, wherein the outer surface of the light-emitting side of the cover body is white. [Explanation of symbols]

[0050] 1 Lighting fixture, 5 Power supply components, 10 Fixture body, 10a Bottom surface of fixture body, 11 Through hole of fixture body, 15 Substrate, 15a Outer edge of substrate, 15b Through hole of substrate, 15c Bottom surface of substrate, 16 Second light-emitting element, Chamber 18, 20 Light-emitting part, 25 Reflective sheet, 25a Cylindrical hole of reflective sheet, 25b Notch of reflective sheet, 30 First light-emitting element, 30a Inner light-emitting element, 35 Resin sheet, 35a Cylindrical hole of resin sheet, 35b Notch of resin sheet, 40 Receiving bracket, 41 Recess of receiving bracket, 45 Power supply cover, 50 Diffuser cover, 55 Optical component (lens), 60 Cover body, 61 First through hole of cover body, 62 Second through hole of cover body, 63 Annular wall portion, 64 Fixing piece, 64a Screw hole of fixing piece, 64b Through hole of fixing piece, 64c Mounting base, 65 First projection of cover body, 65a Through hole of first projection, 67 Outer edge of cover body, 68 Second projection of cover body, 69 Recess, 70 Cap, 70a Groove of cap, 70b Projection of cap, 70c Side of cap, 70d First protrusion of cap, 70e Movement restricting part of cap, 70f Plate part of cap, 70g Screw hole of cap, 71 Lens of cap, 81 Power line, 81a First part of power line, 81b Second part of power line, 85 Movement restricting member, 85a Receiving recess of movement restricting member, 85b Locking part of movement restricting member, 85c Locking claw of movement restricting member.

Claims

1. The main body of the device, A circuit board fixed to the main body of the device, Multiple first light-emitting elements are mounted on one side of the substrate so as to surround the central part, Multiple power supply components mounted on the central part of the aforementioned one side, A second light-emitting element mounted on the central part of the one side surface, The device comprises a power supply cover fixed to the main body of the device and covering the light-emitting side of the central part of one side, The power supply cover includes a cover body and a cap that, together with the cover body, covers the light-emitting side of the power supply component and the second light-emitting element, and also constitutes at least a portion of a through-hole for housing a portion of the power supply wires. The aforementioned cap is made of a light-transmitting material, The cap includes a lens having an overlapping portion that overlaps the second light-emitting element in the height direction, and is used as a lighting fixture.

2. The lighting fixture according to claim 1, further comprising a movement restricting member that, in conjunction with the cap, restricts the movement of the first portion of the power line.

3. The lighting fixture according to claim 1 or 2, wherein the cap includes a movement restricting portion for restricting the movement of the second portion of the power line.

4. In a plan view from the light-emitting side in the height direction, the cover body has an annular shape. The lighting fixture according to claim 1 or 2, wherein in the plan view, the cap is located inside the outer edge of the cover body.

5. The lighting fixture according to claim 1 or 2, wherein the outer surface of the cover body on the light-emitting side is white.

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