JP6815188B2 - Lighting device - Google Patents

Description

The present invention relates to a lighting device.

The lighting fixture described in Patent Document 1 includes a fixture main body, a main reflector attached to the fixture main body, a lamp socket provided on the fixture main body, and an auxiliary reflector arranged on the lower side of the main reflector. Be prepared. The main reflector has a main reflecting surface portion formed in a flat plate shape and a side reflecting surface portion formed in a downwardly expanding shape on a side edge of the main reflecting surface portion. A fluorescent lamp facing the main reflector is mounted on the lamp socket. The auxiliary reflector is arranged on the lower edge of the side reflective surface portion of the main reflector via a ventilation gap. The auxiliary reflection plate has an auxiliary reflection surface portion formed in an enlarged shape toward the lower side, and a folded side portion in which both upper and lower edges of the auxiliary reflection surface portion are folded outward.

Japanese Unexamined Patent Publication No. 6-333406

In the luminaire described in Patent Document 1, the main reflecting surface portion of the main reflector is formed in a flat plate shape, and the side reflecting surface portion of the main reflector is formed downward on the side edge of the main reflecting surface portion. Therefore, the lower edge of the side reflecting surface portion is at a position lower than that of the main reflecting surface portion. The auxiliary reflector is located at a lower position because it is arranged on the lower edge of the side reflecting surface portion via a ventilation gap. Therefore, in order to secure a sufficient ventilation gap, it is necessary to raise the position of the main reflector or lower the position of the auxiliary reflector. However, in that case, the height of the fixture becomes high, and if the space behind the ceiling is narrow, the fixture may not be installed.

An object of the present invention is to keep the height of the illuminating device low while ensuring a passage through which air passes in the illuminating device.

The lighting device according to one aspect of the present invention
A lighting device that has a passage through which air can pass.
A case having a pair of side surface portions, a bottom surface portion connecting the side surface portions, and an open surface portion facing the bottom surface portion and having an opening.
A light source unit having a pair of side surfaces and attached to the opening surface of the case,
The distance from the side surface portion of the light source unit to at least a part thereof is provided at a position away from the side surface portion of the case and the side surface portion of the light source unit, and at least a part thereof is inclined with respect to the side surface portion of the light source unit. The first reflector, which gradually increases in the direction from the bottom surface of the case to the opening surface,
Protruding from the side surface portion of the case, the first reflector is provided with a gap serving as the passage, and at least a part thereof is inclined with respect to the side surface portion of the case, and at least a part thereof is provided from the side surface portion of the case. The case is provided with a second reflector whose distance to the case gradually increases in the direction from the opening surface portion to the bottom surface portion of the case.

In the present invention, the second reflector is inclined in the opposite direction to the first reflector. Therefore, it is easy to secure a gap between the first reflector and the second reflector without raising the position of the second reflector or lowering the position of the first reflector. Therefore, the height of the illuminating device can be kept low while ensuring a passage through which the air passes in the illuminating device.

The perspective view of the lighting apparatus which concerns on Embodiment 1. FIG. A front view, a plan view, a side view, a bottom view, and a rear view of the lighting device according to the first embodiment. An exploded perspective view of the lighting device according to the first embodiment. An exploded perspective view of the lighting fixture according to the first embodiment. The cross-sectional view of the lighting apparatus which concerns on Embodiment 1. FIG. The perspective view of the light source unit which concerns on Embodiment 1. FIG. The perspective view of the lighting apparatus which concerns on Embodiment 2. FIG. An exploded perspective view of the lighting device according to the second embodiment. FIG. 5 is a cross-sectional view of the lighting device according to the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same or corresponding parts are designated by the same reference numerals. In the description of the embodiment, the description will be omitted or simplified as appropriate for the same or corresponding parts. The present invention is not limited to the embodiments described below, and various modifications can be made as needed. For example, among the embodiments described below, two or more embodiments may be combined and implemented. Alternatively, of the embodiments described below, one embodiment or a combination of two or more embodiments may be partially implemented.

Embodiment 1.
The present embodiment will be described with reference to FIGS. 1 to 6.

*** Explanation of configuration ***
The configuration of the lighting device 10 according to the present embodiment will be described with reference to FIGS. 1 to 5.

FIG. 1 is a view of the lighting device 10 viewed from diagonally below. The figure on the left side of FIG. 2 is a front view of the lighting device 10. The figure in the center of FIG. 2 is a plan view, a side view, and a bottom view of the lighting device 10 in order from the top. The figure on the right side of FIG. 2 is a rear view of the lighting device 10. FIG. 3 is an exploded view of the lighting device 10 corresponding to FIG. FIG. 4 is an exploded view of the luminaire 12 which is a part of the luminaire 10. FIG. 5 is a view showing a vertical cross section of the lighting device 10. In the description of the present embodiment, the lighting device 10 is placed on the ceiling in the directions of "upper", "lower", "side", "front", "rear", "diagonally upward", and "diagonally downward". It shows the direction when it is installed. In the present embodiment, the lighting device 10 is used by being attached to the system ceiling, but may be used by being attached to a ceiling other than the system ceiling, or is used by being attached to a mounted portion other than the ceiling such as a wall. You may.

The lighting device 10 has a passage 11 through which air can pass. Air can be circulated between the room and the attic where the air conditioner is installed through the passage 11.

The lighting device 10 includes a lighting fixture 12, a fixture 13, a light source unit 14, a frame member 80, and a terminal block cover 81. The luminaire 12 has a case 20, a first reflector 21, a second reflector 22, and an end plate 23. That is, the lighting device 10 includes the case 20, the first reflector 21, the second reflector 22, the end plate 23, the fixture 13, the light source unit 14, the frame member 80, and the terminal block cover 81. To be equipped.

The case 20 has a long shape having a length dimension larger than a width dimension. The height dimension of the case 20 may be any dimension, but in the present embodiment, it is smaller than the width dimension of the case 20. The width dimension is a dimension in the width direction X. The length dimension is a dimension in the length direction Y. The height dimension is a dimension in the height direction Z. The length dimension of the case 20 may be the same as the width dimension of the case 20, or may be smaller than the width dimension of the case 20.

One second reflector 22 is formed on each side of the case 20. Each of the second reflectors 22 has a long shape having a length dimension larger than a width dimension according to the shape of the case 20. The two second reflectors 22 have shapes that are line-symmetrical with each other in the width direction X. The length dimension of the second reflector 22 may be the same as the width dimension of the second reflector 22 or smaller than the width dimension of the second reflector 22, but it is the same as the length dimension of the case 20. It is desirable that they are the same.

One first reflector 21 is provided on each side of the light source unit 14. Specifically, there is one first reflector 21 below the second reflector 22 and one below the other second reflector 22, some of which face the second reflector 22. It is installed so that it can be used. Each of the first reflectors 21 has a long shape having a length dimension larger than a width dimension according to the shapes of the case 20 and the second reflector plate 22. The two first reflectors 21 have shapes that are line-symmetrical with each other in the width direction X. The length dimension of the first reflector 21 may be the same as the width dimension of the first reflector 21, or may be smaller than the width dimension of the first reflector 21, but the case 20 and the second reflector may be smaller. It is desirable that it is the same as the length dimension of 22.

The end plate 23 is attached to both ends of the case 20 and the second reflector 22 in the longitudinal direction so as to extend in the lateral direction of the case 20 and the second reflector 22. The two end plates 23 close the openings formed at both ends of the case 20 and the second reflector 22 in the longitudinal direction. The two end plates 23 are connected not only to both ends of the case 20 and the second reflector 22 in the longitudinal direction, but also to both ends of the first reflector 21 in the longitudinal direction. The two end plates 23 may be integrally formed with the case 20, the second reflector 22, or the first reflector 21.

The light source unit 14 is attached to the case 20 so as to be located between the two first reflectors 21. The light source unit 14 may be fixed to the case 20 so as not to be detachable, but in the present embodiment, the light source unit 14 is detachably attached to the case 20. The light source unit 14 may have a shape that can be attached to the case 20, but in the present embodiment, the light source unit 14 has a long shape having a length dimension larger than a width dimension according to the shape of the case 20. The length dimension of the light source unit 14 may be the same as the width dimension of the light source unit 14, or may be smaller than the width dimension of the light source unit 14, but it is desirable that the length dimension is the same as the length dimension of the case 20. ..

The fixture 13 is attached to a portion corresponding to the long side of the frame member 80. The number of fixtures 13 may be any number, but in the present embodiment, it is four. Each fixture 13 extends in the height direction Z so that its lower end is hooked on the T-bar 90 on the system ceiling. In the present embodiment, the frame member 80 is attached to the system ceiling by hooking the fixture 13 on the T-bar 90 of the system ceiling, but is attached to the attached portion other than the system ceiling by a fixture such as a bolt. May be good.

The frame member 80 has a rectangular shape in a plan view, but may have a square shape.

The terminal block cover 81 has a box shape. The terminal block cover 81 is attached so as to straddle the frame member 80 along the width direction X. The terminal block 26 is housed in the terminal block cover 81. In the present embodiment, the terminal block 26 is fixed to the inner upper surface of the terminal block cover 81 with fasteners such as screws.

The configuration of the light source unit 14 will be described with reference to FIGS. 5 and 6.

FIG. 6 is a view of the light source unit 14 viewed from diagonally above.

The light source unit 14 includes a light source unit 30, a holding unit 31, a cover unit 32, a light source lid unit 33, a connecting unit 34, and a lighting device 35.

The light source unit 30 irradiates light. In the present embodiment, the light source unit 30 includes a plurality of LEDs 18 and a substrate 19 on which the plurality of LEDs 18 are mounted. The substrate 19 is formed in an elongated shape so that the elongated direction substantially coincides with the elongated direction of the case 20 in a state where the light source unit 14 is mounted on the case 20. The LEDs 18 are arranged on the substrate 19 so as to be linearly arranged along the longitudinal direction of the substrate 19. Instead of the LED 18, another type of solid-state light emitting element such as an organic EL or a laser diode may be used. The number of solid-state light emitting elements is not limited to a plurality, and may be one.

The holding unit 31 holds the light source unit 30 on the light source installation surface 15 which is one side, and holds the lighting device 35 on the back surface 16 of the holding part which is another side. In the present embodiment, the holding portion 31 has a longitudinal shape. The holding portion 31 includes a rectangular plate-shaped bottom wall portion 36 to which the light source portion 30 is attached, and side wall portions 37 that protrude vertically from both sides in the longitudinal direction of the bottom wall portion 36. That is, the holding portion 31 has a bottom wall portion 36 whose one side is the light source installation surface 15 and another side which is the back surface 16 of the holding portion 16, and side wall portions 37 which rise from both sides of the other one side. Not only the lighting device 35 but also the connecting portion 34 is arranged on the back surface 16 of the holding portion on the opposite side of the light source installation surface 15 which is the surface of the bottom wall portion 36 to which the light source portion 30 is attached.

The cover portion 32 is attached to the side of the holding portion 31 where the light source installation surface 15 is located, and covers the light source portion 30. The cover unit 32 emits the light emitted from the light source unit 30 from the light emitting surface 17 exposed to the outside. In the present embodiment, the cover portion 32 has a longitudinal shape. The cover portion 32 is arranged in the optical axis direction of the light source portion 30, and is formed on both sides of the first curved portion 38 that projects in the direction away from the light source portion 30 and the first curved portion 38 in the direction approaching the light source portion 30. It has a second curved portion 39 that is recessed. The first curved portion 38 has an arcuate cross section. The first curved portion 38 controls the light distribution by diffusing the light emitted from the light source portion 30. The second curved portion 39 is pinched and held by an operator when the light source unit 14 is attached or detached. The cover portion 32 further has a U-shaped cross section, is formed at the end of the second curved portion 39, and has a connecting portion 40 fixed to the holding portion 31 so as to sandwich the holding portion 31 from the side wall portion 37 side. Have. The cover portion 32 is made of a resin material that can be extruded. As the resin material, polycarbonate or the like is used. The cover portion 32 may be provided with a function of wavelength conversion of light.

The light source lid portion 33 closes the openings formed at both ends of the holding portion 31 and the cover portion 32 in the longitudinal direction.

The connecting portion 34 is a metal fitting for fixing the light source unit 14 to the case 20. A hole is formed in the connecting portion 34. The connecting portion 34 is fixed to two positions of the bottom wall portion 36 of the holding portion 31 with screws.

The lighting device 35 supplies electric power to the light source unit 30. As a result, the lighting device 35 lights the light source unit 30. Specifically, the lighting device 35 converts the AC power from the commercial power source into DC power and supplies the DC power to the light source unit 30 to light the light source unit 30. Although not shown, the lighting device 35 has a lighting circuit unit that converts AC power into DC power. The lighting circuit unit is housed in a box-shaped housing of the lighting device 35.

The light source unit 14 has a pair of side surface portions 41. One side surface portion 41 corresponds to one second curved portion 39 of the cover portion 32. The other side surface portion 41 corresponds to the other second curved portion 39 of the cover portion 32.

The configuration of the luminaire 12 will be described with reference to FIGS. 1 to 4.

As described above, the luminaire 12 has a case 20, a first reflector 21, a second reflector 22, and an end plate 23.

The case 20 has a pair of side surface portions 51, a bottom surface portion 52 that connects the side surface portions 51 to each other, and an opening surface portion 53 that faces the bottom surface portion 52 and is opened.

A pair of first reflectors 21 are provided so as to extend in the longitudinal direction of the case 20. A pair of second reflectors 22 are also provided so as to extend in the longitudinal direction of the case 20. A pair of end plates 23 are provided so as to extend in the lateral direction of the case 20.

A spring portion 25 is attached to one side of the bottom surface portion 52 of the case 20. The side surface portions 51 stand up from both ends of the bottom surface portion 52 in the lateral direction. The space surrounded by the pair of side surface portions 51 and the bottom surface portion 52 serves as a space for accommodating the lighting device 35. That is, the pair of side surface portions 51 and the bottom surface portion 52 form recesses in which a part of the light source unit 14 including the lighting device 35 is inserted. The bottom surface 52 is provided with a lead-in hole 27 for drawing in an electric wire connected to the terminal block 26 housed in the terminal block cover 81. The terminal block 26 supplies the electric power supplied from the commercial power source to the lighting device 35 via the electric wire.

One spring portion 25 is arranged on the bottom surface portion 52 of the case 20 near both ends in the longitudinal direction of the case 20. The tip portion of the spring portion 25 is bent, and the intermediate portion is curved. The installation location of the spring portion 25 on the bottom surface portion 52 corresponds to the installation location of the connecting portion 34 on the bottom wall portion 36 of the holding portion 31 of the light source unit 14.

The light source unit 14 is attached to the opening surface portion 53 of the case 20. In a state where the light source unit 14 is attached to the opening surface 53, electric power from a commercial power source is supplied to the lighting device 35 via the terminal block 26, and further, the light source is supplied from the lighting device 35 to the light source unit 14. The unit 14 lights up. That is, the light source unit 14 is supplied with power via the terminal block 26 housed in the terminal block cover 81 and lights up.

Here, a method of mounting the light source unit 14 on the case 20 will be described.

First, the tip of the spring portion 25 of the case 20 is hooked into the hole of the connecting portion 34 of the light source unit 14.

Next, when the light source unit 14 is pushed toward the case 20, a part of the light source unit 14 is inserted inside the opening surface portion 53 of the case 20. At this time, the light source unit 14 is pushed in until the intermediate portion of the spring portion 25 slides at the edge portion of the hole of the connecting portion 34 and the tip portion of the connecting portion 34 hits the bottom surface portion 52 of the case 20. As a result, the light source unit 14 is fixed to the case 20.

The configuration of the lighting device 10 will be further described with reference to FIGS. 1 to 5.

Each of the first reflectors 21 is provided at a position away from the side surface portion 51 of the case 20 and the side surface portion 41 of the light source unit 14. At least a part of each of the first reflectors 21 is inclined with respect to the side surface portion 41 of the light source unit 14, and the distance from the side surface portion 41 of the light source unit 14 to at least a part thereof is the bottom surface portion 52 of the case 20. It gradually increases in the direction from the opening surface portion 53 to the opening surface portion 53.

In the present embodiment, the first reflecting surface portion 61, which is a part of each first reflecting plate 21, is inclined with respect to the side surface portion 41 of the light source unit 14, and the first reflection from the side surface portion 41 of the light source unit 14 The distance to the surface portion 61 increases as it goes down. That is, in the present embodiment, the pair of first reflecting surface portions 61 are inclined so as to spread downward.

From the lower end of each of the first reflective surface portions 61, the reinforcing portion 62 rises directly upward. The rigidity of the first reflector 21 is increased by the reinforcing portion 62.

Each of the second reflectors 22 protrudes from the side surface 51 of the case 20 and is provided with a gap from the first reflector 21 to be a passage 11. At least a part of each of the second reflectors 22 is inclined with respect to the side surface portion 51 of the case 20, and the distance from the side surface portion 51 of the case 20 to at least a part thereof is from the opening surface portion 53 of the case 20 to the bottom surface. It gradually increases in the direction toward the portion 52.

In the present embodiment, the second reflecting surface portion 64, which is a part of each of the second reflecting plates 22, is inclined with respect to the side surface portion 51 of the case 20, and the side surface portion 51 to the second reflecting surface portion 64 of the case 20. The distance to is increasing as it goes up. That is, in the present embodiment, the pair of second reflecting surface portions 64 are inclined so as to spread upward.

A flat portion 63 extends horizontally from the lower end of each of the second reflective surface portions 64 and is connected to the lower end of the side surface portion 51 of the case 20. The presence of the flat portion 63, that is, the flat portion adjacent to the light source unit 14, makes it easier to grip the light source unit 14 when the light source unit 14 is attached or detached. The flat portion 63 may be omitted. That is, the second reflective surface portion 64 may be directly connected to the side surface portion 51 of the case 20.

From the upper end of each of the second reflecting surface portions 64, the folded-back portion 65 extends so as to be inclined in a direction different from that of the second reflecting surface portion 64. That is, in the present embodiment, the folded-back portion 65 of each of the second reflectors 22, which is a portion different from the second reflective surface portion 64, is on the side of the second reflective surface portion 64 far from the side surface portion 51 of the case 20. It is connected to the edge of. The folded-back portion 65 of each of the second reflectors 22 is inclined with respect to the side surface portion 51 of the case 20 at an angle different from that of the second reflective surface portion 64, and the folded-back portion 65 from the side surface portion 51 of the case 20. The distance to is increasing as it goes down.

As described above, each of the second reflectors 22 is provided with a gap from the first reflector 21 to the passage 11. That is, there is a gap serving as a passage 11 between the first reflector 21 and the second reflector 22. At the end of the gap closer to the light source unit 14, there is an opening 71 that serves as an entrance to the passage 11, and at the end farther from the light source unit 14, there is an opening 72 that serves as an exit of the passage 11. The opening 71 that serves as the entrance is exposed, but the opening 72 that serves as the exit is shielded by the first reflector 21. Therefore, from under the lighting device 10, the opening 71 that serves as the entrance can be seen, but the opening 72 that serves as the exit cannot be seen. Therefore, the space behind the ceiling behind the opening 72 can be hidden.

At least the floor surface side of the first reflector 21 and the second reflector 22 is made of a material that reflects light, or is processed or painted to reflect light.

In the present embodiment, the first reflecting surface portion 61 reflects the main light from the light source unit 14 toward the floor surface side. Light cannot be reflected in the portion having the opening 71 because the first reflecting surface portion 61 does not exist, but the second reflecting surface portion 64 above the opening 71 reflects the wide-angle light of the light source unit 14, so that the opening 71 It is possible to suppress the occurrence of darkness in.

The opening 71 formed by the first reflecting surface portion 61 and the second reflecting surface portion 64 may be provided at an arbitrary position in the height direction Z, but in the present embodiment, the side of the light source unit 14 on the substrate 19 is located. Specifically, it is provided on the side of the substrate 19. Therefore, the influence of the aperture 71 on the optical characteristics of the light source unit 14 can be reduced.

The first reflecting surface portion 61 may be provided at an arbitrary position in the height direction Z, but in the present embodiment, it is provided at a position lower than that of the case 20. The second reflecting surface portion 64 may also be provided at an arbitrary position in the height direction Z as long as it is provided with a gap from the first reflecting surface portion 61, but in the present embodiment, it is higher than the light source unit 14. It is provided at the position.

In the present embodiment, the case 20 and the second reflector 22 are integrally formed. Specifically, the case 20 and a pair of second reflectors 22 are formed by bending one plate member. Each pair of first reflectors 21 is also formed by bending one plate member. The passage 11 is formed by a combination of a member constituting the case 20 and a pair of the second reflector 22, a member constituting one first reflector 21, and a member constituting the other first reflector 21. Since it is formed, it is not necessary to make a hole in the sheet metal. Therefore, the rigidity of each member can be ensured. Further, by crushing the end portion of each member, it is possible to prevent the occurrence of injury due to the sheet metal edge. Further, by adopting the three-piece configuration, it is possible to make the passage 11 large.

*** Explanation of the effect of the embodiment ***
In the present embodiment, the second reflector 22 is inclined in the direction opposite to that of the first reflector 21. Specifically, assuming that the first reflector 21 is tilted diagonally downward, the second reflector 22 is tilted diagonally upward. Therefore, a gap between the first reflector 21 and the second reflector 22 is secured without raising the position of the second reflector 22 or lowering the position of the first reflector 21. Cheap. Therefore, the height of the lighting device 10 can be kept low while ensuring the passage 11 through which the air passes in the lighting device 10.

In the present embodiment, the opening 72 formed by the first reflector 21 and the second reflector 22 is used as an air conditioning return hole, and the opening 72 is hidden by the second reflector 22 from the line of sight from below the instrument. Therefore, it is possible to prevent the attic from being visually observed from below the fixture through the air conditioning return hole.

In the present embodiment, the second reflector 22 has a folded-back portion 65, and an opening 72 is formed between the folded-back portion 65 and the first reflective surface portion 61 of the first reflective plate 21. The opening 72 leads to the space behind the ceiling, but is located on the side surface side, not on the top surface side. Therefore, as compared with the case where the air conditioning return hole is provided on the top surface side, dust from the ceiling is less likely to enter the room.

*** Other configurations ***
In the present embodiment, the terminal block 26 is housed in the terminal block cover 81. However, as a modification of the present embodiment, the terminal block 26 may be housed in the case 20 to which the light source unit 14 is attached. By storing the terminal block 26 in the case 20, it is not necessary to prepare the terminal block cover 81, and the height of the lighting device 10 can be made lower. That is, according to this modification, the lighting device 10 can be made thinner.

Embodiment 2.
The differences between the present embodiment and the first embodiment will be mainly described with reference to FIGS. 7 to 9.

*** Explanation of configuration ***
The configuration of the lighting device 10 according to the present embodiment will be described with reference to FIGS. 7 to 9.

FIG. 7 is a view of the lighting device 10 viewed from diagonally below. FIG. 8 is an exploded view of the lighting device 10 corresponding to FIG. 7. Note that FIG. 8 also shows the T-bar 90 omitted in FIG. 7. FIG. 9 is a view showing a vertical cross section of the lighting device 10. The lighting device 10 is also used by being attached to the system ceiling in the present embodiment, but it may be used by being attached to a ceiling other than the system ceiling, or it may be used by being attached to a mounted portion other than the ceiling such as a wall. You may.

In the present embodiment, the folded-back portion 66 extends from the upper end of the first reflecting surface portion 61, which is a part of each first reflecting plate 21, so as to be inclined in a direction different from that of the first reflecting surface portion 61. That is, in the present embodiment, the folded-back portion 66 of each first reflecting plate 21 which is a portion different from the first reflecting surface portion 61 is close to the side surface portion 41 of the light source unit 14 of the first reflecting surface portion 61. It is connected to the side edge. The folded portion 66 of each of the first reflectors 21 is inclined with respect to the side surface portion 41 of the light source unit 14 at an angle different from that of the first reflecting surface portion 61, and is folded back from the side surface portion 41 of the light source unit 14. The distance to the part 66 increases as it goes up.

In the present embodiment, the second reflector 22 does not have the flat portion 63. That is, in the present embodiment, the second reflecting surface portion 64 of each second reflecting plate 22 is directly connected to the side surface portion 51 of the case 20.

*** Explanation of the effect of the embodiment ***
In the present embodiment, the same effect as that in the first embodiment can be obtained. That is, according to the present embodiment, the height of the lighting device 10 can be kept low while ensuring the passage 11 through which the air passes in the lighting device 10.

*** Other configurations ***
In the present embodiment, the terminal block 26 is housed in the terminal block cover 81 as in the first embodiment, but the case 20 to which the light source unit 14 is attached is attached as in the modified example of the first embodiment. The terminal block 26 may be housed in the terminal block 26.

10 Lighting device, 11 passages, 12 lighting fixtures, 13 fixtures, 14 light source unit, 15 light source installation surface, 16 back of holding part, 17 light emitting surface, 18 LEDs, 19 boards, 20
Case, 21 1st reflector, 22 2nd reflector, 23 end plate, 25 spring part, 26 terminal block, 27 lead-in hole, 30 light source part, 31 holding part, 32 cover part, 33 light source lid part, 34 connecting part , 35 lighting device, 36 bottom wall part, 37 side wall part, 38 first curved part, 39
Second curved part, 40 connection part, 41 side surface part, 51 side surface part, 52 bottom surface part, 53 opening surface part, 61 first reflection surface part, 62 reinforcement part, 63 flat part, 64 second reflection surface part, 65 folded part, 66 Folded part, 71 openings, 72 openings, 80 frame members, 81 terminal block cover, 90 T-bar.

Claims (6)

In a luminaire that has a passage through which air can pass
A case having a pair of side surface portions, a bottom surface portion connecting the side surface portions, and an open surface portion facing the bottom surface portion and having an opening.
A light source unit having a pair of side surfaces and attached to the opening surface of the case,
The distance from the side surface portion of the light source unit to at least a part thereof is provided at a position away from the side surface portion of the case and the side surface portion of the light source unit, and at least a part thereof is inclined with respect to the side surface portion of the light source unit. The first reflector, which gradually increases in the direction from the bottom surface of the case to the opening surface,
Protruding from the side surface portion of the case, the first reflector is provided with a gap serving as the passage, and at least a part thereof is inclined with respect to the side surface portion of the case, and at least a part thereof is provided from the side surface portion of the case. The distance to the second reflector gradually increases in the direction from the opening surface to the bottom surface of the case .
A folded portion that is connected to the end of the second reflector on the side far from the side surface of the case and extends so as to be inclined in a direction different from that of the second reflector.
Equipped with a,
The folded portion and the between the first reflector, the top surface openings are located on the side surface side rather than the side that has been formed illumination device. The lighting device according to claim 1, wherein the first reflector is located at an end of the gap far from the light source unit, and shields an opening serving as an exit of the passage. The lighting device according to claim 1 or 2, wherein the case and the second reflector are integrally formed. In a luminaire that has a passage through which air can pass
A case having a pair of side surface portions, a bottom surface portion connecting the side surface portions, and an open surface portion facing the bottom surface portion and having an opening.
A light source unit having a pair of side surfaces and attached to the opening surface of the case,
The distance from the side surface portion of the light source unit to at least a part thereof is provided at a position away from the side surface portion of the case and the side surface portion of the light source unit, and at least a part thereof is inclined with respect to the side surface portion of the light source unit. The first reflector, which gradually increases in the direction from the bottom surface of the case to the opening surface,
Protruding from the side surface portion of the case, the first reflector is provided with a gap serving as the passage, and at least a part thereof is inclined with respect to the side surface portion of the case, and at least a part thereof is provided from the side surface portion of the case. With the second reflector whose distance to the case gradually increases along the direction from the opening surface to the bottom surface of the case.
With
A part of the second reflector is inclined with respect to the side surface portion of the case, and the distance from the side surface portion of the case to the portion gradually increases along the direction from the opening surface portion to the bottom surface portion of the case. At the same time, another part is connected to the end of the part on the side far from the side surface of the case, and is inclined with respect to the side surface of the case at an angle different from that of the part, from the side surface of the case. the different parts up lighting device that has become gradually larger distance along the direction toward the opening face from the bottom part of the case. The first reflector is provided on both sides of the light source unit.
The lighting device according to any one of claims 1 to 4, wherein the second reflector is provided on both sides of the case. The lighting device according to any one of claims 1 to 5, which is used by being mounted on a ceiling.

Images