JP7018751B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting fixture.

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

JP-A-2015-76333

In the lighting fixture of Patent Document 1, when trying to miniaturize the lighting fixture in the radial direction, there is a limitation of the installation space for mounting the built-in parts.

The present invention has been made to solve the above-mentioned problems, and provides a lighting fixture having a small diameter while suppressing the height of the lighting fixture.

The luminaire according to the present invention 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 light source overlap each other in a plan view. The side wall portion of the above has a curved surface portion formed in an arc shape and a flat plate portion formed in a linear shape in a plan view .

In the luminaire of the present invention, 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 light source overlap in a plan view, so that the height of the luminaire is suppressed and the luminaire is arranged. The diameter can be reduced.

It is a perspective view which shows the lighting equipment which concerns on Embodiment 1 of this invention. It is a side view which shows the lighting fixture which concerns on Embodiment 1 of this invention. It is an exploded perspective view which shows the lighting equipment which concerns on Embodiment 1 of this invention. It is an exploded perspective view which shows the lighting equipment which concerns on Embodiment 1 of this invention. It is an exploded perspective view which shows the arrangement of the light source module of the luminaire which concerns on Embodiment 1 of this invention. It is an exploded perspective view of the light source module of FIG. FIG. 2 is a sectional view taken along line AA of FIG. 2 showing a lighting fixture according to a first embodiment of the present invention. FIG. 7 is a sectional view taken along line BB of FIG. 7 showing a lighting fixture according to the first embodiment of the present invention. FIG. 7 is a sectional view taken along line CC of FIG. 7 showing a lighting fixture according to the first embodiment of the present invention.

Hereinafter, the lighting fixture 100 according to the embodiment of the present invention will be described with reference to the drawings. In the following drawings including FIG. 1, the relative dimensional relationships and shapes of the constituent members may differ from the actual ones. Further, in the following drawings, those having the same reference numerals are the same or equivalent thereof, and this shall be common to the entire text of the specification. In addition, terms indicating directions or positions (for example, "upper", "lower", "right", "left", "front", "rear", etc.) are appropriately used for ease of understanding. However, these notations are merely described as such for convenience of explanation, and do not limit the arrangement and orientation of the device or component.

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

[Lighting fixture 100]
As shown in FIGS. 1 and 2, the luminaire 100 is configured in a cylindrical shape. The luminaire 100 includes a cover 10 and a case 20. In the following description of the luminaire 100, the radial direction of the luminaire 100 configured in a cylindrical shape is referred to as a radial direction R, and the direction orthogonal to the plane constituting the radial direction R is referred to as a vertical direction Z. Further, the side to which the lighting fixture 100 is mounted, such as the ceiling, is the upward direction Z1, the direction opposite to the upward direction Z1, and the light irradiation side by the lighting fixture 100 is the downward direction Z2. In the following description, unless otherwise specified, "planar view" means a state in which the luminaire 100 is viewed from the downward Z2 side of the luminaire 100 in the upward Z1 direction.

(Cover 10)
As shown in FIG. 3, the cover 10 covers the light source module 30 installed in the case 20. The cover 10 is made of glass, for example. 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 the light emitted from the light source module 30. The cover 10 is formed in a bottomed cylindrical shape with an opening Z1 in the upward direction, and is composed of an annular cover peripheral wall portion 11 and a circular cover front portion 12 in a plan view, as shown in FIG. ing. One end of the fall prevention chain 51 is attached to the cover 10. The other end of the fall protection chain 51 is fixed to the case 20.

In the vertical direction Z, the cover 10 has a cover front surface portion 12 located at one end 11a of the cover peripheral wall portion 11, and the other end 11b forms an opening of the cover 10. A male screw 13 is formed on the outer peripheral wall of the end portion 11b of the cover peripheral wall portion 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 ingress of water and dust into the cover 10 and the case 20.

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

(Case 20)
FIG. 4 is an exploded perspective view showing the lighting fixture 100 according to the first embodiment of the present invention. FIG. 5 is an exploded perspective view showing the arrangement of the light source module 30 of the lighting fixture 100 according to the first embodiment of the present invention. As shown in FIGS. 4 and 5, the luminaire 100 includes a light source module 30, a power supply 40, and an emergency lighting device 42 in an internal space composed of a cover 10 and a case 20. Further, 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 composed of a cover 10 and a case 20. To prepare for. The light source module 30, the power supply 40, the battery 41, the emergency lighting device 42, the power terminal block 43, the inspection monitor 44, and the inspection switch 45 are each held in the case 20. Further, the lighting fixture 100 includes a blindfold plate 50 as shown in FIGS. 3 and 4. The blindfold plate 50 is attached to the case 20. The light source module 30 corresponds to the "light source" of the present invention. Further, the power supply 40 and the emergency lighting device 42 correspond to the "power supply device" of the present invention.

The case 20 is made of resin, for example. The case 20 is not limited to being made of resin, and may be made of other members such as metal. The case 20 is formed in a bottomed cylindrical shape with an opening in the downward direction Z2, and is composed of an annular case peripheral wall portion 21 and a circular plate-shaped case bottom surface portion 22 as shown in FIG. ..

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

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

As shown in FIGS. 4 and 5, the light source module 30 is fixed to the tip of the light source support column 24. The light source support column 24 holds the light source module 30 at a position higher than the case bottom surface portion 22 of the case 20. The light source support column 24 protrudes from the central portion of the case bottom surface portion 22 formed in the shape of a circular plate, 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. It is desirable that the light source support column 24 protrudes in the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). A holding plate support 26 is provided on the side wall portion 24a of the light source support column 24 along the projecting direction of the light source support column 24. A screw for fixing the holding plate 33 of the light source module 30, which will be described later, is fixed to the tip of the holding plate support 26. The light source module 30 is fixed to the tip of the light source column 24 by screwing the press plate 33 of the light source module 30 to the tip of the press plate column 26. The holding plate support column 26 is integrally formed with the side wall portion 24a of the light source support column 24. Two pressing plate columns 26 are provided in the circumferential direction of the light source column 24, but one or three or more may be provided. The holding plate support 26 also serves as a rib that reinforces the light source support 24.

The blind plate 50 is fixed to the tip of the blind plate support 25. The blindfold plate support 25 is formed between the light source support column 24 and the case peripheral wall portion 21 in the radial direction R from the central portion to the peripheral portion of the case 20. The blindfold plate support 25 projects from the bottom surface portion 22 of the case in the irradiation direction of the light source module 30. It is desirable that the blindfold plate support 25 protrudes in the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). The blindfold plate support 25 has a base portion 25a formed in a cylindrical shape and a screw fastening portion 25b formed in a hexagonal columnar shape protruding from the tip of the base portion 25a. The blindfold plate support 25 may have a configuration that protrudes from the case bottom surface portion 22 in order to fix the blindfold plate 50. Therefore, the blind plate support 25 may have other shapes such as a polygonal pillar shape at the base 25a and a cylindrical shape at the screwing portion 25b. Alternatively, the blindfold plate support 25 does not have the base portion 25a and the screwing portion 25b, and may have other shapes such as a single-structured cylindrical shape and a polygonal pillar shape.

(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. As shown in FIG. 6, the light source module 30 includes an LED 31, a socket 32, a holding plate 33, and a light source cover 34. The LED 31 is a light source and is composed of a COB (Chip on Board) -LED (light-emitting diode). The LED 31 may be composed of a substrate on which a plurality of LEDs are arranged. The socket 32 is made of ceramic, and the holding plate 33 is made of aluminum. The socket 32 and the holding plate 33 dissipate heat from the LED 31. The LED 31 is sandwiched between the socket 32 and the holding plate 33. The socket 32 is screwed to the holding plate 33 with a plurality of screws. The holding plate 33 is formed in the shape of a circular plate, and the screwing portion 33a screwed to the holding plate support 26 protrudes from the peripheral portion of the circular plate shape. The LED 31 is covered with 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 holding plate 33 is fixed with screws to the screw holes formed in the holding plate columns 26 of the case 20. The light source cover 34 is also fixed to the screw holes formed in the holding plate columns 26 by co-tightening. The socket 32 holding the LED 31 and the holding plate 33 may be fastened together to the light source column 24 with screws for fixing the socket 32 to the holding plate 33.

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

(Detailed configuration of components in the lighting fixture 100)
FIG. 7 is a sectional view taken along line AA of FIG. 2 showing the lighting fixture 100 according to the first embodiment of the present invention. FIG. 8 is a sectional view taken along line BB of FIG. 7 showing the lighting fixture 100 according to the first embodiment of the present invention. FIG. 9 is a sectional view taken along line CC of FIG. 7 showing the lighting fixture 100 according to the first embodiment of the present invention. In FIG. 9, the blindfold plate 50 and the light source cover 34 are omitted in order to clarify the arrangement relationship of the components in the case 20. In the lighting fixture 100 according to the first embodiment 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 arranged between the case peripheral wall portion 21 of the case 20 and the light source support column 24 in the radial direction R, it becomes difficult to reduce the outer shape of the case 20. Therefore, it is considered to arrange the power supply 40 in the case 20 at a position where it overlaps with the light source module 30 in a plan view.

The power supply 40 is a power supply device that supplies electric power to the light source module 30 in a normal state. The power supply 40 is formed in a substantially rectangular parallelepiped shape. The power supply 40 has a first top surface portion 40a forming a surface farthest from the case bottom surface portion 22 in a direction perpendicular to the case bottom surface portion 22 (Z-axis direction) in which the power supply 40 is arranged. 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 the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). It has a top surface portion 40b.

As shown in FIG. 7 or 9, the shape of the power supply 40 is not a perfect rectangular parallelepiped, but has a second top surface portion 40b. The second top surface portion 40b 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 40b is a chamfered square surface formed between the power supply side wall portion 40c facing the light source module 30 and the first top surface portion 40a. As shown in FIG. 7, the second top surface portion 40b forms a slope with respect to the case bottom surface portion 22. Although the second top surface portion 40b is formed as a square surface, it may be formed as a round surface or may be formed by another type of chamfer. The power supply 40 may also have a second top surface portion 40b formed between the power supply side wall portion 40c on the opposite side of the light source module 30 and the first top surface portion 40a.

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

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

As described above, the side wall portion 24a of the light source support column 24 has a curved surface portion 24c formed in an arc shape and a flat plate portion 24d formed in a straight line in a plan view. Further, the power supply 40 is attached to the case 20 so as to be in contact with the flat plate portion 24d of the light source support column 24. 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 the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). It has a top surface portion 40b. Then, a part of the second top surface portion 40b is arranged at a position where it overlaps with the light source module 30 in a plan view. That is, in the lighting fixture 100 having this configuration, as shown in FIGS. 7 to 8, the position where the power supply 40 is arranged between the light source module 30 and the case 20 and overlaps with the light source module 30 in a plan view. Is located in.

Next, it is considered that the emergency lighting device 42 as well as the power supply 40 is arranged in the case 20 at a position where it overlaps with the light source module 30 in a plan view. The emergency lighting device 42 is a power supply device that supplies electric power to the light source module 30 in an emergency or an inspection. The emergency lighting device 42 is formed in a rectangular parallelepiped shape. The emergency lighting device 42 has a first top surface portion 42a forming a surface farthest from the case bottom surface portion 22 in a direction perpendicular to the case bottom surface portion 22 (Z-axis direction) in which the emergency lighting device 42 is arranged. .. Further, the emergency lighting device 42 is formed around the first top surface portion 42a and is located between the case bottom surface portion 22 and the first top surface portion 42a in the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). It has a second top surface portion 42b. Further, the emergency lighting device 42 extends in a direction perpendicular to the case bottom surface portion 22 (Z-axis direction) and is located between the case bottom surface portion 22 and the second top surface portion 42b. It has a power supply side wall portion 42c constituting the side wall. As shown in FIG. 7, in the lighting fixture 100, the height of the emergency lighting device 42 from the case bottom surface portion 22 (position of the first top surface portion 42a) in the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). However, it is lower than the height at which the holding plate 33, which is the bottom surface of the light source module 30, is located. As shown in FIG. 8, the lighting fixture 100 does not have a substantially cylindrical shape in which the cross-sectional area of the light source support column 24 occupies the same area as the occupied area of the light source module 30, and the side wall portion 24a of the light source column 24 is an emergency lighting device 42. The place where is inserted is recessed by at least a distance of t2. Since the side wall portion 24a of the light source column 24 at the place where the emergency lighting device 42 is inserted is recessed by at least a distance t2, and the diameter of the light source column 24 is reduced by a distance t2, the emergency lighting device 42 Is arranged at a position where it overlaps with the light source module 30 in a plan view.

As shown in FIGS. 7 and 8, the light source support column 24 has a side wall portion 24a in which a notch portion 24b into which a part of the emergency lighting device 42 is inserted is formed. The recessed portion of the side wall portion 24a of the light source column 24 having a distance t2 is formed by the notch portion 24b. The emergency lighting device 42 is arranged so that a part of the second top surface portion 42b is inserted into the cutout portion 24b of the light source support column 24. That is, in the lighting fixture 100 having the above configuration, as shown in FIGS. 7 to 8, the emergency lighting device 42 is arranged between the light source module 30 and the case 20, and the light source module 30 and the lighting fixture 100 are viewed in a plan view. It is placed in a position where it overlaps.

The LED 31 of the light source module 30 generates heat when emitting light. Further, as shown in FIG. 9, the power supply 40 and the emergency lighting device 42 have a heat generating component 40d such as a switching element and a heat generating component 42d inside. The dotted line shown in FIG. 9 shows the positions of the heat generating component 40d and the heat generating component 42d 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 examples and are not limited to the positions. The heat generating component 40d and the heat generating component 42d are arranged at positions that do not overlap with the light source module 30 and the light source support column 24 in a 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 a plan view, and the heat generating component 40d and the heat generating component 42d are formed from the side wall portion 24a of the light source column 24 to the light source module 30. It is arranged apart from the length of the radius R1 of.

(Operation of lighting equipment 100)
Normally, the lighting fixture 100 is supplied with commercial power from the outside, and is supplied to the power supply 40, which is a lighting device, and the emergency lighting device 42, via the power terminal block 43. In the lighting fixture 100, the power supply 40 normally supplies electric power to the light source module 30, and the emergency lighting device 42 trickles the battery 41. The luminaire 100 can use the luminaire 100 as lighting that constantly lights the light source module 30 at normal times by wiring that directly supplies commercial power from an external power source. Further, as for the lighting fixture 100, the lighting fixture 100 can be used as lighting that is not always lit but is lit when necessary by wiring for supplying commercial power via an external switch.

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

The lighting fixture 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 sufficiently charged, the LED of the inspection monitor 44 lights up in green. In the lighting fixture 100 according to the first embodiment of the present invention, when the lighting fixture 100 is supplied with commercial power 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. When the battery 41 is not sufficiently 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 is displayed that the battery 41 cannot be charged and that the power cannot 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 arranged between the light source module 30 and the case 20 and at a position where they overlap with the light source module 30 in a plan view. .. As a result, even if the power supply 40 and the emergency lighting device 42 are arranged in the center of the case 20, the lighting equipment 100 does not interfere with the light source module 30 and the height of the lighting equipment 100 is suppressed. The diameter of the luminaire 100 can be reduced. Further, even if the outer diameter of the case 20 is reduced, the lighting fixture 100 may provide a space in the case 20 for arranging the battery 41 on the peripheral side of the case 20 with respect to the power supply 40 and the emergency lighting device 42. can.

Further, the lighting fixture 100 has a side wall portion 24a in which the light source support column 24 is formed with a notch portion 24b into which a part of the emergency lighting device 42 is inserted. A part of the second top surface portion 40b is inserted into the cutout portion 24b of the light source support column 24 and arranged. That is, in the lighting fixture 100 having the above configuration, the emergency lighting device 42 is arranged between the light source module 30 and the case 20 and at a position where the light source module 30 and the light source module 30 overlap each other in a plan view. By providing the cutout portion 24b on the side wall portion 24a of the light source support column 24 in this way, the emergency lighting device 42 can lengthen the distance t2 that overlaps with the light source module 30 in a plan view, and the case 20 can be easily molded. is doing. Similarly, a notch portion 24b may be formed at a position where the power supply 40 or the insertion portion of the side wall portion 24a of the light source support column 24 is inserted. Since the cutout portion 24b is formed at the position where the power supply 40 is inserted in the side wall portion 24a of the light source support column 24, the distance t1 at which the power supply 40 overlaps with the light source module 30 in a plan view can be lengthened. .. As a result, even if the power supply 40 and the emergency lighting device 42 are arranged in the center of the case 20, the lighting equipment 100 does not interfere with the light source module 30 and the height of the lighting equipment 100 is suppressed. The diameter of the luminaire 100 can be reduced.

Further, the lighting fixture 100 has a first top surface portion 40a in which the power supply 40 forms a surface farthest from the case bottom surface portion 22 in a direction perpendicular to the case bottom surface portion 22. Further, in the lighting fixture 100, 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 the direction perpendicular to the case bottom surface portion 22. It has a top surface portion 40b. Further, the lighting fixture 100 has a first top surface portion 42a in which the emergency lighting device 42 constitutes a surface farthest from the case bottom surface portion 22 in a direction perpendicular to the case bottom surface portion 22. Further, in the lighting fixture 100, the emergency lighting device 42 is formed around the first top surface portion 42a and is located between the case bottom surface portion 22 and the first top surface portion 42a in the direction perpendicular to the case bottom surface portion 22. It has a second top surface portion 42b. Then, a part of the second top surface portion 40b or the second top surface portion 42b is arranged at a position where it overlaps with the light source module 30 in a plan view. As a result, even if the power supply 40 and the emergency lighting device 42 are arranged close to the center of the case 20, the power source 40 and the emergency lighting device 42 do not interfere with the light source module 30 and the height of the lighting fixture 100 is suppressed. At the same time, the diameter of the lighting fixture 100 can be reduced.

Further, the luminaire 100 has a side wall portion 24a of the light source support column 24 having a curved surface portion 24c formed in an arc shape and a flat plate portion 24d formed in a straight line in a plan view. Further, the power supply 40 is attached to the case 20 so as to be in contact with the flat plate portion 24d of the light source support column 24. 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 the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). It has a top surface portion 40b. The edge portion 40b1 of the second top surface portion 40b is located between the position of the case bottom surface portion 22 and the position of the holding plate 33 in the direction perpendicular to the case bottom surface portion 22 (Z-axis direction). Therefore, the power supply 40 can be arranged between the light source module 30 and the case 20 and can be arranged at a position where the light source module 30 and the light source module 30 overlap each other in a plan view. As a result, in the lighting fixture 100, even if the power supply 40 having a height equal to or higher than the holding plate 33 of the light source module 30 is arranged in the center of the case 20, the power supply 40 does not interfere with the light source module 30, and the height of the lighting fixture 100 is high. The diameter of the luminaire 100 can be reduced while suppressing the problem.

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

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

Further, in the lighting fixture 100, the heat generating component 40d and the heat generating component 42d are arranged at positions where they do not overlap with the light source module 30 and the light source support column 24 in a plan view. Since the power supply 40 and the emergency lighting device 42 are configured in this way, the heat of the power supply 40 and the emergency lighting device 42 is less likely to be transferred to the light source module 30. Alternatively, the heat of the light source module 30 is less likely to be transferred to the heat generating component 40d and the heat generating component 42d of the power supply 40 and 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 is less likely to interfere with each other.

Further, in the lighting fixture 100, the light source module 30 is formed in a circular shape in a plan view, and the heat generating component 40d and the heat generating component 42d are longer than the length of the radius R1 of the light source module 30 from the side wall portion 24a of the light source column 24. It is placed apart from each other. Since the power supply 40 and the emergency lighting device 42 are configured in this way, the heat of the power supply 40 and the emergency lighting device 42 is less likely to be transferred to the light source module 30. Alternatively, the heat of the light source module 30 is less likely to be transferred to the heat generating component 40d and the heat generating component 42d of the power supply 40 and 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 is less likely to interfere with each other.

The embodiment of the present invention is not limited to the first embodiment, and various modifications can be made. For example, although the lighting fixture 100 describes a configuration in which the power supply 40 is in contact with the flat plate portion 24d, the emergency lighting device 42 may be in contact with the flat plate portion 24d. Further, the luminaire 100 describes a mode in which 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. However, in the luminaire 100, a female screw is formed on the cover 10, a male screw is formed on the case 20, and the female screw formed on the cover 10 is screwed to the male screw formed on the case 20, so that the cover 10 is formed. It may be fixed to the case 20.

10 cover, 11 cover peripheral wall, 11a end, 11b end, 12 cover front, 13 male screw, 14 cover packing, 20 cases, 21 case peripheral wall, 21a end, 21b end, 22 case bottom, 23 Female screw, 24 light source support, 24a side wall, 24b notch, 24c curved surface, 24d flat plate, 25 plate support, 25a base, 25b screwing part, 26 holding plate support, 30 light source module, 31 LED, 32 socket, 33 Holding plate, 33a screwed part, 34 light source cover, 40 power supply, 40a first top surface part, 40b second top surface part, 40b1 edge part, 40c power supply side wall part, 40d heat generating parts, 41 battery, 42 emergency lighting device , 42a 1st top surface, 42b 2nd top surface, 42c power supply side wall, 42d heat generating parts, 43 power terminal block, 44 inspection monitor, 45 inspection switch, 50 blind plate, 50a light source hole, 50b screw hole, 50c monitor Holes, 50d switch holes, 50e notches, 51 fall prevention chains, 100 lighting fixtures.

Claims (9)

A light source that emits light and
At least one power supply that supplies power to the light source,
A light source column for holding the light source is formed, and a case for holding the power supply device and a case for holding the power supply device.
Equipped with
The power supply unit
It is arranged between the light source and the case, and is arranged at a position where it overlaps with the light source in a plan view .
The light source column is formed in the central portion of the case in a plan view.
The side wall portion of the light source column is a lighting fixture having a curved surface portion formed in an arc shape and a flat plate portion formed in a straight line in a plan view . The side wall is
The luminaire according to claim 1, wherein a notch into which a part of the power supply device is inserted is formed. The power supply unit
A first top surface portion that constitutes a surface farthest from the bottom surface portion of the case in a direction perpendicular to the bottom surface portion of the case in which the power supply device is arranged.
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 luminaire according to claim 1 or 2, wherein a part of the second top surface portion is arranged at a position where it overlaps with the light source in a plan view. The power supply unit
The luminaire according to claim 3, wherein a part of the second top surface portion is inserted and arranged in the notch portion of the light source column, which is dependent on claim 2. The lighting equipment according to any one of claims 1 to 3, wherein the power supply device is attached to the case so as to be in contact with the flat plate portion of the light source column. The at least one power supply unit includes a plurality of power supply units.
At least one of the plurality of power supply devices is
A part of the second top surface portion is inserted and arranged in the notch portion of the light source column.
The other at least one power supply device among the plurality of power supply devices is
The luminaire according to claim 3, which is subordinate to claim 2 and 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 a slope with respect to the bottom surface portion of the case. The power supply unit has a heat generating component and has a heat generating component.
The lighting fixture according to any one of claims 1 to 7, wherein the heat generating component is arranged at a position where the light source and the light source column do not overlap in a plan view. The light source is formed in a circular shape in a plan view.
The luminaire according to claim 8, wherein the heat generating component is arranged at a distance of the length of the radius of the light source or more from the side wall portion of the light source column.

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