JP2019102369A - lighting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture having a small diameter while suppressing the height of the lighting fixture. SOLUTION: A lighting fixture includes a light source that emits light, at least one power supply device that supplies power to the light source, and a case in which a light source column for holding the light source is formed and a power supply device is held. The power supply device is arranged between the light source and the case, and is arranged at a position where the light source and the power supply device overlap with each other in a plan view. [Selection diagram] FIG. 7

Description

  The present invention relates to a luminaire.

  Conventionally, in a circular luminaire, in order to reduce the height of the luminaire and make it thin, the power supply unit is disposed on the surface opposite to the reflective surface of the main body, and does not overlap the light source in plan view A luminaire to be disposed at a position has been proposed (e.g., Patent Document 1).

JP, 2015-76333, A

  In the lighting device of Patent Document 1, when attempting to miniaturize the lighting device in the radial direction, there is a restriction on the installation space for mounting the built-in parts.

  The present invention has been made to solve the problems as described above, and provides a lighting fixture whose diameter is reduced while the height of the lighting fixture is suppressed.

  A lighting fixture according to the present invention comprises a light source for emitting light, at least one power supply for supplying power to the light source, a light source support for holding the light source, and a case for holding the power supply. The power supply device is disposed between the light source and the case, and is disposed at a position overlapping the light source in plan view.

  The luminaire according to the present invention is characterized in that the power supply device is disposed between the light source and the case, and is disposed at a position where it overlaps with the light source in plan view, thereby suppressing the height of the luminaire. The diameter can be reduced.

It is a perspective view which shows the lighting fixtures which concern on Embodiment 1 of this invention. It is a side view showing a lighting fixture concerning Embodiment 1 of the present invention. It is a disassembled perspective view which shows the lighting fixtures which concern on Embodiment 1 of this invention. It is a disassembled perspective view which shows the lighting fixtures which concern on Embodiment 1 of this invention. It is a disassembled perspective view which shows arrangement | positioning of the light source module of the lighting fixtures which concern on Embodiment 1 of this invention. It is a disassembled perspective view of the light source module of FIG. It is the sectional view on the AA line of FIG. 2 which shows the lighting fixture which concerns on Embodiment 1 of this invention. It is the BB sectional drawing of FIG. 7 which shows the lighting fixtures which concern on Embodiment 1 of this invention. It is the CC sectional view taken on the line of FIG. 7 which shows the lighting fixture which concerns on Embodiment 1 of this invention.

  Hereinafter, a luminaire 100 according to an embodiment of the present invention will be described with reference to the drawings. In the following drawings including FIG. 1, the relative dimensional relationships, shapes, and the like of the respective constituent members may differ from the actual ones. Moreover, in the following drawings, what attached | subjected the same code | symbol is the same or it corresponds to this, and this shall be common in the whole text of a specification. In addition, in order to facilitate understanding, terms (for example, “upper”, “lower”, “right”, “left”, “front”, “rear”, etc.) indicating directions or positions are appropriately used. However, for convenience of explanation, these notations are only described as such, and do not limit the arrangement and orientation of the device or parts.

Embodiment 1
FIG. 1 is a perspective view showing the lighting fixture 100 according to the first embodiment. FIG. 2 is a side view showing the lighting fixture 100 according to the first embodiment. FIG. 3 is an exploded perspective view showing the lighting fixture 100 according to Embodiment 1 of the present invention. First, with reference to FIGS. 1 to 3, an overall configuration of a lighting fixture 100 according to Embodiment 1 of the present invention will be described.

[Lighting apparatus 100]
The lighting fixture 100 is configured in a cylindrical shape, as shown in FIGS. 1 and 2. The lighting apparatus 100 includes a cover 10 and a case 20. In the following description of the lighting fixture 100, the radial direction of the cylindrical lighting fixture 100 is referred to as the radial direction R, and the direction orthogonal to the surface that constitutes the radial direction R is the vertical direction Z. Further, a mounting surface side such as a ceiling to which the lighting fixture 100 is attached is referred to as an upward direction Z1, opposite to the upward direction Z1, and a light irradiation side of the lighting fixture 100 is referred to as a downward direction Z2. In the following description, “planar view” refers to the state in which the luminaire 100 is viewed in the upward direction Z1 from the downward direction Z2 side of the luminaire 100, unless otherwise specified.

(Cover 10)
The cover 10 covers the light source module 30 installed in the case 20, as shown in FIG. The cover 10 is made of, for example, glass. The cover 10 is not limited to glass, and may be made of other members such as resin. The cover 10 transmits, diffuses, or transmits and diffuses light emitted from the light source module 30. The cover 10 is formed in a bottomed cylindrical shape having an opening in the upper direction Z1 and, as shown in FIG. 3, includes an annular cover peripheral wall portion 11 and a circular cover front portion 12 in plan view. ing. One end of a fall prevention chain 51 is attached to the cover 10. The other end of the fall prevention chain 51 is fixed to the case 20.

  In the cover 10, the cover front surface portion 12 is located at one end 11a of the cover peripheral wall portion 11 in the vertical direction Z, and the other end 11b forms an opening of the cover 10. An external thread 13 is formed on the outer peripheral wall of the end 11 b of the cover peripheral wall 11. The cover 10 is fixed to the case 20 by screwing the male screw 13 formed on the cover 10 to the female screw 23 formed on the case 20. A ring-shaped cover packing 14 is attached to the male screw 13 of the cover 10. The cover packing 14 is an O-ring, and suppresses the entry of water and dust into the cover 10 and the case 20.

  The cover front portion 12 is formed in a circular shape in plan view, and as shown in FIG. 2, is formed in a gently convex shape from the peripheral edge portion of the circle to the central portion in a longitudinal cross sectional view. In addition, the cover front part 12 is not limited to what is formed in the gentle convex shape toward the center part from the peripheral part of a circle in a longitudinal cross sectional view, For example, from the peripheral part of a circle in a longitudinal cross sectional view It may be formed gently concave toward the central portion, or may be formed flat.

(Case 20)
FIG. 4 is an exploded perspective view showing the lighting fixture 100 according to Embodiment 1 of the present invention. FIG. 5 is an exploded perspective view showing the arrangement of the light source modules 30 of the lighting fixture 100 according to Embodiment 1 of the present invention. The lighting fixture 100 is equipped with the light source module 30, the power supply 40, and the emergency lighting device 42 in the interior space comprised by the cover 10 and the case 20, as shown in FIG.4 and FIG.5. In addition, as shown in FIGS. 4 and 5, the lighting fixture 100 includes a battery 41, a power terminal block 43, an inspection monitor 44, and an inspection switch 45 in an internal space formed by the cover 10 and the case 20. Equipped with The light source module 30, the power supply 40, the battery 41, the emergency lighting device 42, the power supply terminal block 43, the inspection monitor 44 and the inspection switch 45 are held by the case 20, respectively. Moreover, the lighting fixture 100 is equipped with the blind board 50, as shown to FIG. 3 and FIG. The blind plate 50 is attached to the case 20. The light source module 30 corresponds to the "light source" in the present invention. The power supply 40 and the emergency lighting device 42 correspond to the "power supply device" in the present invention.

  Case 20 is made of resin, for example. In addition, case 20 is not limited to resin-made, You may be comprised with other members, such as a metal. The case 20 is formed in a bottomed cylindrical shape having an opening in the lower direction Z2, and as shown in FIG. 4, is formed of an annular case peripheral wall portion 21 and a circular plate-like case bottom portion 22. .

  In the case 20, the case bottom 22 is positioned at one end 21a of the case peripheral wall 21 in the vertical direction Z, and the other end 21b forms an opening of the case 20. A female screw 23 is formed on the inner peripheral wall of the end 21 b of the case peripheral wall 21. The cover 10 is fixed to the case 20 by screwing the male screw 13 formed on the cover 10 with the female screw 23 formed on the case 20.

  The case bottom portion 22 is formed in a circular plate shape, and the power supply 40, the battery 41, the emergency lighting device 42, the power supply terminal block 43, the inspection monitor 44 and the inspection switch 45 are disposed on one surface. . Further, as shown in FIG. 5, a light source support 24 and a blind plate support 25 are formed on the case bottom portion 22 of the case 20. The other surface of the case bottom 22 faces the mounting surface such as a ceiling or a wall when the lighting apparatus 100 is mounted on the mounting surface such as a ceiling or a wall.

  As shown in FIGS. 4 and 5, the light source module 30 is fixed to the tip of the light source column 24. The light source support 24 holds the light source module 30 at a position higher than the case bottom 22 of the case 20. The light source support 24 projects from the central portion of the case bottom 22 formed in a circular plate shape, and is formed in a substantially cylindrical shape. The projecting direction of the light source column 24 projects in the irradiation direction of the light source module 30. The light source support 24 preferably protrudes in a direction (Z-axis direction) perpendicular to the case bottom 22. A pressure plate support 26 is provided on the side wall portion 24 a of the light source support 24 along the projecting direction of the light source support 24. A screw for fixing a pressing plate 33 of the light source module 30 described later is fixed to the tip of the pressing plate support 26. The light source module 30 is fixed to the tip of the light source column 24 by screwing the pressure plate 33 of the light source module 30 to the tip of the column 26. The pressing plate support 26 is integrally formed with the side wall portion 24 a of the light source support 24. Although two pressing plate supports 26 are provided in the circumferential direction of the light source support 24, one or three or more pressing plate supports may be provided. The pressing plate support 26 also plays the role of a rib for reinforcing the light source support 24.

  A blind plate 50 is fixed to the tip of the blind plate support 25. The blind plate support 25 is formed between the light source support 24 and the case peripheral wall 21 in the radial direction R from the center to the periphery of the case 20. The blind plate support 25 projects from the case bottom 22 in the irradiation direction of the light source module 30. The blind plate support 25 preferably protrudes in a direction (Z-axis direction) perpendicular to the case bottom 22. The blind plate support 25 has a base 25a formed in a cylindrical shape, and a screwing portion 25b formed in a hexagonal column shape projecting from the tip of the base 25a. The blind plate support column 25 may have a configuration projecting from the case bottom 22 in order to fix the blind plate 50. Therefore, the blind plate support 25 may have another shape such as a polygonal base in the base portion 25a and a cylindrical shape in the screwing portion 25b. Alternatively, the blind plate support 25 may not have the base portion 25a and the screwing portion 25b, and may have another shape such as a cylindrical structure or a polygonal shape having a single structure, for example.

(Light source module 30)
FIG. 6 is an exploded perspective view of the light source module 30 of FIG. The light source module 30 is formed in a hemispherical shape. The light source module 30 emits light. The light source module 30 is comprised from LED31, the socket 32, the holding plate 33, and the light source cover 34, as shown in FIG. The LED 31 is a light source, and is configured by a COB (Chip on Board) -LED (light-emitting diode). In addition, LED31 may be comprised by the board | substrate with which several LED was arrange | positioned. The socket 32 is made of ceramic, and the pressing plate 33 is made of aluminum. The socket 32 and the pressing plate 33 dissipate the heat of the LED 31. The LED 31 is sandwiched between the socket 32 and the pressing plate 33. The socket 32 is screwed to the pressing plate 33 with a plurality of screws. The pressing plate 33 is formed in a circular plate shape, and a screwing portion 33 a screwed to the pressing plate support 26 protrudes from the peripheral edge portion of the circular plate shape. The LED 31 is covered by a light source cover 34. The light emitted by the LED 31 is diffused by the light source cover 34.

  The light source module 30 is held by the light source column 24 of the case 20. The pressing plate 33 is fixed to a screw hole formed in the pressing plate support 26 of the case 20 with a screw. The light source cover 34 is also fixed in a screw hole formed in the pressing plate support 26 by co-clamping. The socket 32 holding the LED 31 and the pressing plate 33 may be fastened together to the light source column 24 by a screw that fixes the socket 32 to the pressing plate 33.

(Blind board 50)
Returning to FIG. 3 and FIG. 4, the blind plate 50 is a circular plate made of resin. The blind plate 50 is disposed between the power supply 40, the battery 41, the emergency lighting device 42, the power supply terminal block 43, the inspection monitor 44 and the inspection switch 45, and the cover front portion 12. The light source module 30 protrudes from the central portion of the blind plate 50 and is exposed. Among the components arranged in the case 20, components other than the light source module 30 and the fall prevention chain 51 are covered with a blind plate 50. The blind plate 50 has a light source hole 50 a at the center for exposing the light source module 30. The blind plate 50 has a screw hole 50b for fixing the blind plate support 25 of the case 20 with a screw or the like at the periphery and a monitor hole 50c for exposing the LED display of the inspection monitor 44. Further, the blind plate 50 is formed with a switch hole 50d for operating the inspection switch 45 in the peripheral portion, and a notch 50e through which the fall prevention chain 51 is inserted in the peripheral portion.

(Detailed Configuration of Components in Lighting Fixture 100)
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 2 showing the lighting fixture 100 according to Embodiment 1 of the present invention. FIG. 8 is a cross-sectional view taken along the line B-B of FIG. 7 showing the lighting fixture 100 according to Embodiment 1 of the present invention. FIG. 9 is a cross-sectional view taken along line C-C of FIG. 7 showing the lighting fixture 100 according to Embodiment 1 of the present invention. In addition, in FIG. 9, in order to clarify the arrangement | positioning relationship of the components in case 20, the blind board 50 and the light source cover 34 are abbreviate | omitted. In the lighting apparatus 100 according to Embodiment 1 of the present invention, the power supply 40 and the emergency lighting device 42 are long and occupy a large space in the case 20. Therefore, when the power supply 40 or the emergency lighting device 42 is disposed between the case peripheral wall portion 21 of the case 20 and the light source column 24 in the radial direction R, it is difficult to reduce the outer size of the case 20. Therefore, in the case 20, it is considered to arrange the power source 40 at a position overlapping the light source module 30 in a plan view.

  The power supply 40 is a power supply device that supplies power to the light source module 30 at normal times. The power supply 40 is formed in a substantially rectangular parallelepiped shape. The power source 40 has a first top surface portion 40 a that constitutes a surface most distant from the case bottom surface portion 22 in the direction (Z-axis direction) perpendicular to the case bottom surface portion 22 where the power source 40 is disposed. Further, the power supply 40 is formed around the first top surface portion 40a, and is located between the case bottom surface portion 22 and the first top surface portion 40a in a direction (Z-axis direction) perpendicular to the case bottom surface portion 22. It has a top surface 40b.

  As shown in FIG. 7 or FIG. 9, the shape of the power supply 40 is not a complete rectangular parallelepiped, but has a second top surface 40b. The second top surface portion 40 b is formed at least in the longitudinal direction of the power supply 40. The second top surface portion 40b is located between the case bottom surface portion 22 and the first top surface portion 40a, and the distance from the case bottom surface portion 22 is shorter than that of the first top surface portion 40a. The second top surface portion 40 b is a chamfered corner surface formed between the power supply side wall portion 40 c facing the light source module 30 and the first top surface portion 40 a. As shown in FIG. 7, the second top surface portion 40 b forms a slope with respect to the case bottom portion 22. In addition, although the 2nd top surface part 40b is formed as a square surface, it may be formed as a round surface and may be formed by the chamfer of another kind. In the power supply 40, the second top surface 40b may be formed between the power supply sidewall 40c opposite to the light source module 30 and the first top surface 40a.

  The power supply 40 extends in a direction (Z-axis direction) perpendicular to the case bottom 22, is located between the case bottom 22 and the second top 40 b, and constitutes a side wall of the power supply 40. Have. As shown in FIGS. 7 and 9, the end edge portion 40b1 of the second top surface portion 40b located on the outer peripheral edge of the case 20 in plan view is continuous with the power supply sidewall portion 40c. The end edge 40b1 of the second top surface 40b is located between the position of the case bottom 22 and the position of the pressing plate 33 in the direction (Z-axis direction) perpendicular to the case bottom 22.

  As shown in FIG. 7, the height of the power supply 40 (the position of the first top surface portion 40 a) from the case bottom portion 22 in the direction perpendicular to the case bottom portion 22 (Z-axis direction) It is higher than the height at which the pressing plate 33 which is the bottom of the module 30 is located. As shown in FIG. 8, the luminaire 100 does not have a substantially cylindrical shape in which the cross-sectional area of the light source support 24 occupies the same area as the area occupied by the light source module 30, and the side wall 24 a of the light source support 24 contacts the power supply 40. Is recessed by a distance t1. As shown in FIG. 8, the light source support 24 has a straight portion DE in the side wall 24 a in a cross section perpendicular to the projecting direction (Z-axis direction). That is, the side wall portion 24a of the light source column 24 has a curved surface portion 24c formed in a circular arc shape and a flat plate portion 24d formed in a linear shape in a plan view. Since the light source support 24 has the flat plate portion 24d as shown in FIG. 7, the peripheral portion of the circular plate-like pressing plate 33 of the light source module 30 is the flat portion 24d at the tip of the light source support 24. , And project from the light source support 24 in the radial direction of the case 20. The power source 40 is attached to the case 20 so as to be in contact with the flat plate portion 24 d of the light source column 24. The side wall portion 24a of the light source support 24 at a portion in contact with the power supply 40 is recessed by at least the distance t1, and the diameter of the light source support 24 is reduced by the distance t1. Further, the end edge 40b1 of the second top surface 40b is located between the position of the case bottom 22 and the position of the pressing plate 33 in the direction (Z-axis direction) perpendicular to the case bottom 22. Therefore, the lighting fixture 100 can arrange the power supply 40 in which the position of the first top surface portion 40a is higher than the height at which the pressing plate 33 is positioned at a position overlapping the light source module 30 in plan view.

  As described above, the side wall portion 24 a of the light source column 24 has the curved surface portion 24 c formed in an arc shape and the flat plate portion 24 d formed in a linear shape in a plan view. The power source 40 is attached to the case 20 so as to be in contact with the flat plate portion 24 d of the light source column 24. The power supply 40 is formed around the first top surface 40a, and is located between the case bottom 22 and the first top surface 40a in a direction (Z-axis direction) perpendicular to the case bottom 22. It has a top surface 40b. And a part of 2nd top | upper surface part 40b is arrange | positioned in the position which overlaps with the light source module 30 in planar view. That is, as shown in FIGS. 7 to 8, in the lighting fixture 100 having the configuration, the power supply 40 is disposed between the light source module 30 and the case 20 and overlaps the light source module 30 in plan view. Is located in

  Next, similarly to the power supply 40, the emergency lighting device 42 is also considered to be disposed in the case 20 at a position overlapping the light source module 30 in plan view. The emergency lighting device 42 is a power supply device that supplies power to the light source module 30 in an emergency or at the time of inspection. The emergency lighting device 42 is formed in a rectangular shape. The emergency lighting device 42 has a first top surface portion 42 a that constitutes the surface most distant from the case bottom portion 22 in the direction (Z-axis direction) perpendicular to the case bottom portion 22 where the emergency lighting device 42 is disposed. . The emergency lighting device 42 is formed around the first top surface portion 42a, and is located between the case bottom portion 22 and the first top surface portion 42a in the direction perpendicular to the case bottom surface 22 (Z-axis direction). And a second top surface 42b. Furthermore, the emergency lighting device 42 is extended in a direction (Z-axis direction) perpendicular to the case bottom 22 and is located between the case bottom 22 and the second top surface 42 b. It has a power supply side wall 42c that constitutes a side wall. As shown in FIG. 7, the height of the emergency lighting device 42 from the case bottom 22 (the position of the first top surface 42 a) of the lighting fixture 100 in the direction (Z-axis direction) perpendicular to the case bottom 22. Is lower than the height at which the pressing plate 33 which is the bottom of the light source module 30 is located. As shown in FIG. 8, the luminaire 100 does not have a substantially cylindrical shape in which the cross-sectional area of the light source column 24 occupies the same area as the area occupied by the light source module 30, and the side wall 24 a of the light source column 24 is an emergency lighting device 42. The point where the is inserted is recessed by at least the distance t2. The side wall portion 24a of the light source column 24 is recessed by at least the distance t2 where the emergency lighting device 42 is inserted, and the diameter of the light source column 24 is reduced by the distance t2. Are disposed at positions overlapping the light source module 30 in plan view.

  As shown in FIGS. 7 and 8, the light source column 24 has a side wall 24a in which a notch 24b into which a part of the emergency lighting device 42 is inserted is formed. The concave portion for the distance t2 formed in the side wall portion 24a of the light source column 24 is formed by the notch portion 24b. The emergency lighting device 42 is arranged such that a part of the second top surface portion 42 b is inserted into the notch portion 24 b of the light source column 24. That is, as shown in FIGS. 7 to 8, in the lighting fixture 100 having the configuration, the emergency lighting device 42 is disposed between the light source module 30 and the case 20, and in plan view with the light source module 30. And are arranged at overlapping positions.

  The LEDs 31 of the light source module 30 generate heat when light is emitted. Further, as shown in FIG. 9, the power supply 40 and the emergency lighting device 42 internally include a heat generating component 40 d such as a switching element and a heat generating component 42 d. The dotted lines shown in FIG. 9 indicate the positions of the heat generating component 40 d and the heat generating component 42 d inside the power supply 40 and the emergency lighting device 42. The positions of the heat-generating component 40d and the heat-generating component 42d shown in FIG. 9 are merely illustrative, and the present invention is not limited to these positions. The heat generating component 40 d and the heat generating component 42 d are disposed at positions where they do not overlap with the light source module 30 and the light source column 24 in plan view. Further, as shown in FIG. 9, in the lighting fixture 100, the light source module 30 is formed in a circular shape in plan view, and the heat generating component 40d and the heat generating component 42d are connected to the light source module 30 from the side wall 24a of the light source column 24. Are spaced apart at least the length of the radius R1.

(Operation of lighting fixture 100)
The lighting fixture 100 is normally supplied with commercial power from the outside, and is supplied to the power supply 40 as the lighting device and the emergency lighting device 42 through the power supply terminal block 43. In addition, in the lighting fixture 100, the power supply 40 supplies power to the light source module 30, and the emergency lighting device 42 trickle charges the battery 41 under normal conditions. The luminaire 100 can use the luminaire 100 as a light for always lighting the light source module 30 at normal times by the wiring that directly supplies the commercial power from the external power supply. Moreover, the lighting fixture 100 can also use the lighting fixture 100 as a lighting which is not always turned on but is turned on when necessary by the wiring which supplies commercial power via an external switch.

  In an emergency, when the supply of commercial power from the outside is stopped, the lighting apparatus 100 supplies DC power in the battery 41 to the light source module 30 via the emergency lighting device 42. Further, at the time of inspection, when the inspector operates the inspection switch 45, the lighting apparatus 100 supplies DC power from the battery 41 to the light source module 30 via the emergency lighting device 42.

  The lighting apparatus 100 can confirm the charge state of the battery 41 by the LED display of the inspection monitor 44 when the inspector operates the inspection switch 45. When the battery 41 is fully charged, the LED of the inspection monitor 44 lights up in green. In the lighting apparatus 100 according to Embodiment 1 of the present invention, when the commercial power is supplied to the lighting apparatus 100 from the outside for 48 hours or more, the battery 41 is sufficiently charged, and the LED of the inspection monitor 44 is turned on. If the battery 41 is not fully charged, the LED of the inspection monitor 44 is not lit. Even when the battery 41 is not electrically connected to the emergency lighting device 42, it indicates that charging of the battery 41 can not be performed, and displays that power can not be supplied from the battery 41 to the light source module 30. Therefore, the LED of the inspection monitor 44 is not lit.

  As described above, in the lighting fixture 100, the power supply 40 and the emergency lighting device 42 are disposed between the light source module 30 and the case 20, and are disposed at a position overlapping the light source module 30 in plan view. . As a result, even if the lighting apparatus 100 arranges the power supply 40 and the emergency lighting device 42 at the center of the case 20, the power supply 40 and the emergency lighting device 42 do not interfere with the light source module 30, and the height is suppressed. The diameter of the lighting fixture 100 can be reduced. Furthermore, even if the outer diameter of the case 20 is reduced, the lighting apparatus 100 may provide a space for disposing the battery 41 on the peripheral side of the case 20 relative to the power supply 40 and the emergency lighting device 42 in the case 20. it can.

  Moreover, the lighting fixture 100 has the side wall part 24a in which the light source support | pillar 24 was formed in the notch part 24b in which a part of emergency lighting apparatus 42 is inserted. And a part of 2nd top | upper surface part 40b is inserted in the notch part 24b of the light source support | pillar 24, and is arrange | positioned. That is, in the lighting fixture 100 having the configuration, the emergency lighting device 42 is disposed between the light source module 30 and the case 20 and is disposed at a position overlapping the light source module 30 in plan view. By providing the notch 24b in the side wall 24a of the light source support column 24 as described above, the distance t2 at which the emergency lighting device 42 overlaps the light source module 30 in plan view can be increased, and the case 20 can be easily formed. doing. Similarly, the notch 24b may be formed at a position where the power supply 40 of the side wall 24a of the light source column 24 is inserted. The notch 24b is formed at the position where the power supply 40 of the side wall 24a of the light source column 24 is inserted, whereby the distance t1 at which the power supply 40 overlaps the light source module 30 in plan view can be increased. . As a result, even if the lighting apparatus 100 arranges the power supply 40 and the emergency lighting device 42 at the center of the case 20, the power supply 40 and the emergency lighting device 42 do not interfere with the light source module 30, and the height is suppressed. The diameter of the lighting fixture 100 can be reduced.

  In addition, in the lighting fixture 100, the power supply 40 has a first top surface portion 40a which constitutes a surface most distant from the case bottom portion 22 in the direction perpendicular to the case bottom portion 22. In the lighting fixture 100, the power supply 40 is formed around the first top surface 40a, and is positioned between the case bottom 22 and the first top surface 40a in a direction perpendicular to the case bottom 22. It has a top surface 40b. Further, in the lighting fixture 100, the emergency lighting device 42 has a first top surface portion 42a which constitutes a surface farthest from the case bottom portion 22 in the direction perpendicular to the case bottom portion 22. In the lighting fixture 100, the emergency lighting device 42 is formed around the first top surface 42a, and is positioned between the case bottom 22 and the first top surface 42a in the direction perpendicular to the case bottom 22. And a second top surface 42b. Then, a portion of the second top surface portion 40 b or the second top surface portion 42 b is disposed at a position overlapping the light source module 30 in plan view. As a result, even if the lighting apparatus 100 places the power supply 40 and the emergency lighting device 42 close to the center of the case 20, the power supply 40 and the emergency lighting device 42 do not interfere with the light source module 30, and the height is suppressed. Meanwhile, the diameter of the lighting apparatus 100 can be reduced.

  In the lighting fixture 100, the side wall portion 24a of the light source column 24 has a curved surface portion 24c formed in an arc shape and a flat plate portion 24d formed in a linear shape in a plan view. The power source 40 is attached to the case 20 so as to be in contact with the flat plate portion 24 d of the light source column 24. The power supply 40 is formed around the first top surface 40a, and is located between the case bottom 22 and the first top surface 40a in a direction (Z-axis direction) perpendicular to the case bottom 22. It has a top surface 40b. The end edge portion 40b1 of the second top surface portion 40b is located between the position of the case bottom portion 22 and the position of the pressing plate 33 in the direction (Z-axis direction) perpendicular to the case bottom portion 22. Therefore, the power source 40 can be disposed between the light source module 30 and the case 20 and at a position overlapping the light source module 30 in plan view. As a result, the lighting apparatus 100 does not interfere with the light source module 30 even if the power supply 40 having the height of the pressing plate 33 or more of the light source module 30 is disposed at the center of the case 20. The diameter of the lighting apparatus 100 can be reduced while suppressing the size.

  In addition, the lighting apparatus 100 is attached to the case 20 such that the power supply 40 is in contact with the flat plate portion 24 d of the light source column 24. By holding the side surface of the light source support 24 with the power supply 40, the lighting fixture 100 can make the light source support 24 thinner than the light source module 30 and increase the rigidity of the case 20.

  Further, in the lighting device 100, the second top surface portion 40b of the power source 40 and the second top surface portion 42b of the emergency lighting device 42 each form a slope with respect to the case bottom portion 22. Therefore, in the lighting fixture 100, the power supply 40 and the emergency lighting device 42 can be easily disposed between the light source module 30 and the case 20, and can be easily disposed at a position overlapping the light source module 30 in plan view. As a result, even if the lighting apparatus 100 places the power supply 40 and the emergency lighting device 42 close to the center of the case 20, the power supply 40 and the emergency lighting device 42 do not interfere with the light source module 30, and the height is suppressed. Meanwhile, the diameter of the lighting apparatus 100 can be reduced.

  Moreover, the lighting fixture 100 is arrange | positioned in the position from which the heat-emitting component 40d and the heat-emitting component 42d do not overlap with the light source module 30 and the light source support | pillar 24 in planar view. With the power supply 40 and the emergency lighting device 42 thus configured, the heat of the power supply 40 and the emergency lighting device 42 is less likely to be transmitted to the light source module 30. Alternatively, the heat of the light source module 30 is less likely to be transmitted to the power supply 40 and the heat generating component 40 d and the heat generating component 42 d of the emergency lighting device 42. That is, the heat generated by the light source module 30, the power supply 40 and the emergency lighting device 42 does not easily interfere with each other.

  In the lighting device 100, the light source module 30 is formed in a circular shape in plan view, and the heat generating component 40d and the heat generating component 42d are longer than the radius R1 of the light source module 30 from the side wall 24a of the light source column 24 It is placed away from. With the power supply 40 and the emergency lighting device 42 thus configured, the heat of the power supply 40 and the emergency lighting device 42 is less likely to be transmitted to the light source module 30. Alternatively, the heat of the light source module 30 is less likely to be transmitted to the power supply 40 and the heat generating component 40 d and the heat generating component 42 d of the emergency lighting device 42. That is, the heat generated by the light source module 30, the power supply 40 and the emergency lighting device 42 does not easily interfere with each other.

  The embodiment of the present invention is not limited to the above-described Embodiment 1, and various modifications can be made. For example, although the lighting fixture 100 describes the configuration in which the power supply 40 is in contact with the flat plate portion 24 d, the emergency lighting device 42 may be in contact with the flat plate portion 24 d. Moreover, the lighting fixture 100 describes the aspect by which the cover 10 is fixed to the case 20 by screwing the external thread 13 formed in the cover 10 to the internal thread 23 formed in the case 20. As shown in FIG. However, in the lighting device 100, the cover 10 is formed by forming the female screw on the cover 10, forming the male screw on the case 20, and screwing the female screw formed on the cover 10 to the male screw formed on the case 20. It may be fixed to the case 20.

  DESCRIPTION OF REFERENCE NUMERALS 10 cover 11 cover peripheral wall 11a end 11b end 12 cover front surface 13 male screw 14 cover packing 20 case 21 case peripheral wall 21a end 21b end 22 case bottom surface 23 Female screw, 24 light source support, 24a side wall, 24b notch, 24c curved surface, 24d flat surface, 25 plate support, 25a base, 25b screwing part, 26 pressing plate support, 30 light source modules, 31 LED, 32 sockets, 33 holding plate 33a screwed portion 34 light source cover 40 power source 40a first top surface portion 40b second top surface portion 40b1 edge portion 40c power side wall portion 40d heat generating component 41 battery 42 emergency lighting device , 42a first top surface portion, 42b second top surface portion, 42c power supply side wall portion, 42d heat generating portion , 43 power supply terminal block 44 checking the monitor, 45 test switch, 50 blind plate, 50a light source hole, 50b screwed hole, 50c monitors hole 50d switches hole lacks 50e cut, 51 drop prevention chain, 100 luminaires.

Claims (9)

A light source that emits light,
At least one power supply for powering the light source;
A light source post for holding the light source is formed, and a case for holding the power supply device,
Equipped with
The power supply device
The lighting fixture arrange | positioned between the said light source and the said case in the position which overlaps with the said light source in planar view. The light source support is
The lighting fixture according to claim 1, further comprising a side wall portion in which a notch portion is formed in which a part of the power supply device is inserted. The power supply device
A first top surface portion that constitutes a surface farthest from the case bottom portion in a direction perpendicular to the case bottom portion in which the power supply device is disposed;
A second top surface portion formed around the first top surface portion and located between the case bottom surface portion and the first top surface portion in a direction perpendicular to the case bottom surface portion;
Have
The lighting fixture according to claim 1 or 2, wherein a part of the second top surface portion is disposed at a position overlapping with the light source in plan view. The power supply device
The lighting fixture according to claim 3, which is dependent on claim 2, wherein a part of the second top surface portion is inserted into and disposed in the cutout portion of the light source column. The side wall portion of the light source column has a curved surface portion formed in an arc shape and a flat surface portion formed in a linear shape in plan view,
The said power supply device is a lighting fixture of any one of Claims 1-3 attached to the said case so that the said flat part of the said light source support | pillar may be contacted. The side wall portion of the light source column has a curved surface portion formed in an arc shape and a flat surface portion formed in a linear shape in plan view,
The at least one power supply comprises a plurality of power supplies,
At least one of the plurality of power supplies is:
A portion of the second top surface portion is inserted into the cutout portion of the light source column;
At least one other power supply of the plurality of power supplies is
The luminaire according to claim 3, which is attached to the case so as to be in contact with the flat plate portion of the light source column.   The lighting fixture according to any one of claims 3, 4, and 6, wherein the second top surface portion forms an inclined surface with respect to the case bottom surface portion. The power supply has a heat generating component,
The lighting device according to any one of claims 1 to 7, wherein the heat-generating component is disposed at a position not overlapping with the light source and the light source column in a plan view. The light source is formed in a circular shape in plan view,
The luminaire according to claim 8, wherein the heat-generating component is disposed apart from a side wall portion of the light source column by a length of a radius of the light source or more.

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