JP6839929B2 - Lighting device - Google Patents

Description

The present invention relates to a lighting device.

In the lighting device described in Patent Document 1, an air conditioning duct hole is provided on the top surface of the lamp on the ceiling side. In this lighting device, air is circulated between the air conditioner installed behind the ceiling and the living room through the space leading from the gap between the side wall of the lamp and the reflector provided in the lamp to the air conditioning duct hole. It is designed to let you.

Japanese Unexamined Patent Publication No. 2008-210562

In the lighting device described in Patent Document 1, both the side wall of the lamp and the reflector are substantially flat plates. Therefore, in order to hide the through hole on the top surface of the lamp from the living room, the side wall of the lamp is used. The gap with the reflector must be narrowed, and there is a risk that a sufficient amount of air flow cannot be secured.

An object of the present invention is to secure a sufficient amount of air flowing through the main body of the lighting device.

The lighting device according to one aspect of the present invention
A box-shaped instrument with one surface open and a through hole on the bottom surface facing the opened surface to serve as an airflow outlet.
A light source unit mounted at a position different from the position where the through hole is provided on the bottom surface of the fixture body, and
It extends from a position in contact with the light source unit through between the open surface of the instrument body and the through hole toward the inner surface of the instrument body, and extends from the end far from the light source unit and the inside of the instrument body. A decorative material provided with a gap serving as an inlet for the airflow between the side surface and the side surface is provided.
At least one of the inner surface of the fixture body and the end of the decorative material on the side far from the light source unit is a protrusion that blocks the through hole from being seen through the gap from the open surface of the fixture body. A part is provided.

In the present invention, a through hole on the bottom surface of the instrument body is seen through an open surface of the instrument body by a convex portion provided on at least one of the inner surface of the instrument body and the end on the side far from the light source unit of the decorative material. That is blocked. For this reason, while hiding the through hole on the bottom surface of the fixture body, the gap between the inner surface of the fixture body and the end on the side far from the light source unit of the decorative material is widened to reduce the amount of air flowing through the fixture body of the lighting device. It can be secured sufficiently.

The perspective view of the lighting apparatus which concerns on Embodiment 1. FIG. An exploded perspective view of the lighting device according to the first embodiment. (A) plan view and (b) cross-sectional view of the lighting apparatus according to the first embodiment. The perspective view of the light source unit which concerns on Embodiment 1. FIG. An exploded perspective view of the lighting fixture according to the first embodiment. A partially enlarged view of FIG. (A) plan view and (b) cross-sectional view of the lighting device according to the modified example of the first embodiment. (A) plan view and (b) cross-sectional view of the lighting apparatus according to the second embodiment. (A) plan view and (b) cross-sectional view of the lighting apparatus according to the third embodiment. (A) plan view and (b) cross-sectional view of the lighting device according to the modified example of the third 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. Further, in the description of the embodiment, the arrangement or orientation such as "top", "bottom", "left", "right", "front", "rear", "front", and "back" is for convenience of explanation. It is only stated as such, and does not limit the arrangement or orientation of devices, appliances, parts, etc. The material, shape, size, etc. of the configuration of the device, instrument, parts, etc. can be appropriately changed within the scope of the present invention.

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, 2 and 3.

FIG. 1 is a view of the lighting device 10 viewed from diagonally below. FIG. 2 is an exploded view of the lighting device 10 of FIG. FIG. 3A is a view of a part of the lighting device 10 as viewed from above. FIG. 3B 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 attached to the system ceiling, but may be attached to a ceiling other than the system ceiling, or may be attached to a mounted portion other than the ceiling such as a wall.

The lighting device 10 includes a lighting fixture 11 and a light source unit 14. The lighting fixture 11 includes a fixture main body 12, a fixture 13, a first decorative material 51, and a second decorative material 52. That is, the lighting device 10 includes an instrument main body 12, a light source unit 14, a fixture 13, a first decorative material 51, and a second decorative material 52.

The instrument main body 12 may have any shape, but in the present embodiment, it has a long shape having a length dimension larger than a width dimension. The height dimension of the instrument main body 12 may be any dimension, but in the present embodiment, it is smaller than the width dimension. 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 first decorative material 51 and the second decorative material 52 are attached to the inside of the instrument main body 12 so as to line up in the width direction X. The first decorative material 51 and the second decorative material 52 may have a shape that can be attached to the instrument main body 12, but in the present embodiment, the length dimension is larger than the width dimension according to the shape of the instrument main body 12. It has a large long shape. The first decorative material 51 and the second decorative material 52 have shapes that are line-symmetrical with each other in the width direction X.

The fixture 13 is attached to the outside of the instrument body 12. The number of the fixtures 13 may be any number, but in the present embodiment, the number of the fixtures 13 is two. In the present embodiment, the lighting device 10 is attached to the system ceiling by hooking the fixture 13 on the ceiling frame of the system ceiling. However, as will be described later, the illuminating device 10 is attached to a portion other than the system ceiling by a fixture such as a bolt. It may be attached to.

The light source unit 14 is attached to the inside of the instrument main body 12 so as to be located between the first decorative material 51 and the second decorative material 52. The light source unit 14 may be fixed to the instrument main body 12 so as not to be attached and detached, but in the present embodiment, the light source unit 14 is detachably attached to the instrument main body 12. The light source unit 14 may have a shape that can be attached to the fixture main body 12, 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 fixture main body 12. ..

The configuration of the light source unit 14 will be described with reference to FIGS. 3 and 4.

FIG. 4 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 instrument main body 12 in a state where the light source unit 14 is mounted on the instrument main body 12. The LEDs 18 are arranged on the substrate 19 so as to be arranged in a straight line 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 on which the light source portion 30 of the bottom wall portion 36 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 (PC) 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 instrument main body 12. 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 input via the appliance main body 12 into DC power and supplies the DC power to the light source unit 30 to light the light source unit 30. Let me. 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 case of the lighting device 35.

The configuration of the luminaire 11 will be described with reference to FIG.

FIG. 5 is an exploded view of the lighting fixture 11 of FIG.

As described above, the lighting fixture 11 has a fixture main body 12, a fixture 13, a first decorative material 51, and a second decorative material 52.

The instrument body 12 has an inner side wall 21, an outer wall 22, a bottom wall 23, and a lid 24.

The inner side wall 21 and the outer wall 22 are provided in pairs so as to extend in the longitudinal direction of the instrument main body 12. The space surrounded by the paired inner side wall 21 and the bottom wall 23 is a space for accommodating the light source unit 14, the first decorative material 51, and the second decorative material 52.

The bottom wall 23 is provided so as to extend in the longitudinal direction of the instrument main body 12. A spring portion 25 and a terminal block 26 are attached to one side of the bottom wall 23. A first decorative material 51 and a second decorative material 52 are also attached to one side of the bottom wall 23. The space surrounded by the first decorative material 51, the second decorative material 52, and the bottom wall 23 becomes a space for accommodating the lighting device 35. The fixture 13 is attached to the other side of the bottom wall 23. On the bottom wall 23, a fixing hole 20 for fixing the appliance main body 12 to the attached portion by a fixture such as a bolt, a lead-in hole 27 for drawing in an electric wire connected to a commercial power source, and an air conditioner are installed. A first through hole 28 and a second through hole 29 for allowing air to flow between the ceiling and the room are provided. In the present embodiment, since the lighting device 10 is fixed to the system ceiling by the fixture 13, the fixing hole 20 may not be provided.

The lids 24 are provided at both ends of the instrument body 12 in the longitudinal direction so as to extend in the lateral direction of the instrument body 12. The lid portion 24 closes the openings formed at both ends of the inner side wall 21, the outer wall 22 and the bottom wall 23 in the longitudinal direction.

The terminal block 26 is connected to an electric wire drawn from the lead-in hole 27, and supplies electric power supplied from a commercial power source to the lighting device 35. Therefore, the terminal block 26 is connected to the lighting device 35 via an electric wire for power supply.

One spring portion 25 is arranged on the bottom wall 23 near both ends of the instrument main body 12 in the longitudinal direction. 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 wall 23 corresponds to the installation location of the connecting portion 34 on the bottom wall portion 36 of the holding portion 31.

Here, a method of mounting the light source unit 14 on the fixture main body 12 will be described.

First, the tip of the spring portion 25 of the instrument body 12 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 fixture main body 12, a part of the light source unit 14 is inserted into the space formed between the first decorative material 51 and the second decorative material 52. 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 wall 23 of the instrument main body 12. As a result, the light source unit 14 is fixed to the fixture body 12.

The configuration of the lighting device 10 will be further described with reference to FIGS. 3, 5 and 6.

FIG. 6 is an enlarged view of the portion surrounded by the dotted line in FIG.

The instrument body 12 has a box shape with one surface 41 opened. A first through hole 28, which is a through hole serving as an outlet for airflow, is provided on the bottom surface 42 of the instrument body 12 facing the opened surface 41. The bottom surface 42 of the instrument body 12 corresponds to one side of the bottom wall 23. In the present embodiment, a second through hole 29, which is a through hole different from the first through hole 28, is further provided on the bottom surface 42 of the instrument main body 12. The second through hole 29 is a through hole that serves as an outlet for the air flow, like the first through hole 28.

The light source unit 14 is attached at a position different from the position where the first through hole 28 is provided on the bottom surface 42 of the instrument main body 12. In the present embodiment, the light source unit 14 is attached between the position where the first through hole 28 is provided and the position where the second through hole 29 is provided on the bottom surface 42 of the instrument main body 12.

On the side of the light source unit 14, a first decorative material 51, which is a decorative material for hiding the first through hole 28, is arranged so as to be in contact with the light source unit 14. The first decorative material 51 extends from a position in contact with the light source unit 14 toward the inner side surface 43 of the instrument body 12 through between the opened surface 41 of the instrument body 12 and the first through hole 28. A first gap 55, which is a gap serving as an air flow inlet, is provided between the end 53 of the first decorative material 51 on the side far from the light source unit 14 and the inner side surface 43 of the instrument main body 12. In the present embodiment, the light source unit further has a second decorative material 52, which is a decorative material different from the first decorative material 51, on the side of the light source unit 14 opposite to the side where the first decorative material 51 is located. It is arranged so as to be in contact with 14. The second decorative material 52 is a decorative material for hiding the second through hole 29. The second decorative material 52 extends from a position in contact with the light source unit 14 toward the other inner surface 43 of the instrument body 12 through between the open surface 41 of the instrument body 12 and the second through hole 29. .. A second gap 56, which is a gap different from the first gap 55, is provided between the end 54 of the second decorative material 52 on the side far from the light source unit 14 and the other inner side surface 43 of the fixture body 12. There is. The second gap 56 is a gap that serves as an inlet for the air flow, like the first gap 55.

A convex portion is interposed between the opened surface 41 of the instrument body 12 and the first through hole 28 of the bottom surface 42 of the instrument body 12. Specifically, the inner side surface 43 of the instrument body 12 and the end 53 of the first decorative material 51 on the side far from the light source unit 14 are first penetrated from the opened surface 41 of the instrument body 12 through the first gap 55. A convex portion is provided to block the hole 28 from being seen through. More specifically, as such a convex portion, a corner portion 44 is provided on the inner side surface 43 of the instrument main body 12, and an upright portion 57 is provided on the end 53 on the side far from the light source unit 14 of the first decorative material 51. In the present embodiment, a convex portion is also interposed between the open surface 41 of the instrument body 12 and the second through hole 29 of the bottom surface 42 of the instrument body 12. Specifically, the other inner surface 43 of the fixture body 12 and the end 54 of the second decorative material 52 on the side far from the light source unit 14 are located at the end 54 of the fixture body 12 from the open surface 41 via the second gap 56. 2 A convex portion is provided to block the through hole 29 from being seen through. More specifically, as such a convex portion, a corner portion 44 is provided on the other inner side surface 43 of the instrument body 12, and an upright portion 58 is provided on the end 54 on the side far from the light source unit 14 of the first decorative material 51. There is. The corner portion 44 is a portion on the inner side surface 43 of the instrument body 12 where the angle of the instrument body 12 with respect to the bottom surface 42 changes. The upright portion 57 is a portion that rises toward the bottom surface 42 of the instrument main body 12 at the end 53 on the side far from the light source unit 14 of the first decorative material 51. The upright portion 58 is a portion that rises toward the bottom surface 42 of the instrument main body 12 at the end 54 on the side far from the light source unit 14 of the second decorative material 52.

The first through hole 28 is provided on the bottom surface 42 of the instrument body 12 closer to the position where the light source unit 14 is attached than the position on the extension line of the straight line connecting the tip of the corner portion 44 and the tip of the standing portion 57. There is. That is, the width of the first through hole 28 is wider than the position where the extension line of the straight line drawn from the point P at the tip of the corner 44 to the point Q at the tip of the upright portion 57 and the bottom surface 42 of the instrument body 12 intersect. It is located near the center position in direction X. Therefore, since the first through hole 28 cannot be seen from any position when looking up at the lighting device 10, the design of the lighting device 10 can be maintained. The second through hole 29 is also provided closer to the position where the light source unit 14 is attached than the position on the extension line of the straight line connecting the tip of the corner portion 44 and the tip of the standing portion 58 on the bottom surface 42 of the instrument body 12. There is. Therefore, since the second through hole 29 cannot be seen from any position when looking up at the lighting device 10, the design of the lighting device 10 can be maintained.

The airflow passage formed from the first gap 55 to the first through hole 28 is equal to or wider than the width of the first gap 55 from the inlet to the outlet of the airflow and is wider than the width of the first gap 55. The width is the same as the width or wider than the width of the first through hole 28. Specifically, this passage has a first gap 55 at the entrance and a first through hole 28 at the exit, and has the same width as the first gap 55 and the width of the first through hole 28 from immediately after the entrance to the middle. The same width is maintained, and from the middle to just before the exit, the width is wider than the width of the first gap 55 and wider than the width of the first through hole 28. In the present embodiment, the upright portion 57 and the inner surface 43 of the instrument body 12 are inclined at the same angle, but the upright portion 57 may be inclined at an angle smaller than the inner surface 43 of the instrument body 12. .. That is, in the present embodiment, the distance between the standing portion 57 and the inner surface 43 of the instrument body 12 is constant, but the distance between the standing portion 57 and the inner surface 43 of the instrument body 12 is the instrument body. The position closer to the bottom surface 42 of the twelve may be longer. In that case, since the width of the airflow passage gradually widens from immediately after the inlet to the middle, it is wider than the width of the first gap 55 and wider than the width of the first through hole 28 from the inlet to the outlet. It will keep the width. Further, in the present embodiment, the width of the first gap 55 and the width of the first through hole 28 are the same, but the width of the first gap 55 may be wider than the width of the first through hole 28. That is, in the present embodiment, the distance between both ends of the first gap 55 in the width direction X and the distance between both ends of the first through hole 28 in the width direction X are the same, but the distance X in the width direction X of the first gap 55. The distance between both ends of the first through hole 28 may be longer than the distance between both ends of the first through hole 28 in the width direction X. In that case, the airflow passage keeps the same width as the first gap 55 and wider than the width of the first through hole 28 from immediately after the inlet to the middle, and the width of the first gap 55 from the middle to just before the exit. The width is wider than the width and wider than the width of the first through hole 28.

As described above, in the present embodiment, since there is no narrowed portion between the inlet and the outlet of the airflow passage formed from the first gap 55 to the first through hole 28, the amount of air flow is maximized. Can be converted.

The airflow passage formed from the second gap 56 to the second through hole 29 is the same as the airflow passage formed from the first gap 55 to the first through hole 28, and thus the description thereof will be omitted.

In the present embodiment, the width of the bottom surface 42 of the first through hole 28 is wider than the position on the extension line of the straight line connecting the lower end of the inner side surface 43 of the instrument body 12 and the tip of the standing portion 57 on the bottom surface 42 of the instrument body 12. It is provided far from the center position of the direction X. That is, the first through hole 28 is from the position where the extension line of the straight line drawn from the point P'at the lower end of the inner surface 43 of the instrument body 12 to the point Q at the tip of the upright portion 57 intersects with the bottom surface 42 of the instrument body 12. Is also arranged far from the center position of the bottom surface 42 in the width direction X. Therefore, assuming that the inner side surface 43 of the fixture body 12 does not have a corner portion 44 and the inner side surface 43 of the fixture body 12 is flat, depending on the position, when looking up at the lighting device 10, the first gap 55 is passed through. The first through hole 28 may be visible. Instead of providing the corner portion 44, the first through hole 28 may be hidden by bringing the standing portion 57 closer to the inner side surface 43 of the instrument main body 12, but in the present embodiment, by providing the corner portion 44, the first through hole 28 may be hidden. The first gap 55 can be further widened to increase the amount of air flow.

Further, in the present embodiment, the first through hole 28 is on an extension of a straight line connecting the tip of the corner portion 44 and the end 53 on the side far from the light source unit 14 of the first decorative material 51 on the bottom surface 42 of the instrument body 12. It is provided farther from the center position of the bottom surface 42 in the width direction X than the position of. That is, the first through hole 28 is an extension of a straight line drawn from a point P at the tip of the corner 44 to a point Q'at the end 53 on the far side from the light source unit 14 of the first decorative material 51, and the bottom surface of the instrument body 12. It is arranged farther from the center position of the bottom surface 42 in the width direction X than the position where the 42 intersects. Therefore, if the first decorative material 51 does not have the upright portion 57, the first through hole 28 may be visible through the first gap 55 when looking up at the lighting device 10 depending on the position. Instead of providing the upright portion 57, the first through hole 28 may be hidden by bringing the end 53 of the first decorative material 51 on the side far from the light source unit 14 closer to the inner side surface 43 of the instrument main body 12. In the above form, by providing the upright portion 57, the first gap 55 can be further widened and the amount of air flow can be increased.

As described above, in the present embodiment, the combination of the corner portion 44 and the upright portion 57 can increase the air flow amount while hiding the first through hole 28.

Since the combination of the corner portion 44 and the upright portion 58 is the same as the combination of the corner portion 44 and the upright portion 57, the description thereof will be omitted.

The first decorative material 51 further has a vertical portion 59 and a horizontal portion 61. The vertical portion 59 extends in the height direction Z. The vertical portion 59 is fixed between the position where the first through hole 28 is provided on the bottom surface 42 of the instrument main body 12 and the position where the light source unit 14 is attached. The horizontal portion 61 is connected to the vertical portion 59 and extends in the width direction X. That is, the horizontal portion 61 extends from a position connected to the vertical portion 59 toward the inner side surface 43 of the instrument main body 12. The horizontal portion 61 is formed so as to have a length that covers the first through hole 28 when viewed from below. A first gap 55 is provided between the end 53 of the horizontal portion 61 opposite to the vertical portion 59 and the inner side surface 43 of the instrument main body 12. In the present embodiment, the horizontal portion 61 is in contact with a portion between the light source portion 30 of the light source unit 14 and the lighting device 35. Specifically, the horizontal portion 61 is in contact with the connecting portion 40 of the cover portion 32 of the light source unit 14. As a result, the horizontal portion 61 hides the first through hole 28 without blocking the light emitted from the first curved portion 38 and the second curved portion 39 of the cover portion 32 forming the light emitting surface 17. Can be done. Further, since the portion of the first decorative material 51 adjacent to the light source unit 14 is a horizontal portion 61, that is, is flat, the light source unit 14 can be easily grasped when the light source unit 14 is attached or detached.

In the present embodiment, in the first decorative material 51, one end of the vertical portion 59 in the height direction Z is fixed to a plurality of locations on the bottom wall 23 of the instrument main body 12 with screws or the like, and the horizontal portion 61 is in the length direction. Both ends of Y are hooked on at least one of the lids 24 of the instrument body 12 to be fixed to the instrument body 12. The end 53 of the first decorative material 51 on the side far from the light source unit 14 is not directly fixed to the instrument body 12, but in the present embodiment, the vertical portion 59 and the horizontal portion 61 form a single plate-shaped member. By bending and forming integrally, the bending of the horizontal portion 61 due to the air flow is suppressed or prevented.

In the present embodiment, the second decorative material 52 includes a vertical portion 60 configured in the same manner as the vertical portion 59 of the first decorative material 51 and a horizontal portion formed in the same manner as the horizontal portion 61 of the first decorative material 51. It has 62 and.

*** Explanation of the effect of the embodiment ***
In the present embodiment, the convex portion provided on the inner side surface 43 of the instrument body 12 and the end on the side far from the light source unit 14 of the decorative material allows the open surface 41 of the instrument body 12 to the bottom surface 42 of the instrument body 12. It is blocked from seeing through the through hole. Therefore, while hiding the through hole of the bottom surface 42 of the fixture body 12, the gap between the inner surface 43 of the fixture body 12 and the end far from the light source unit 14 of the decorative material is widened, and the fixture body 12 of the lighting device 10 is widened. It is possible to secure a sufficient amount of air flowing through the air.

*** Other configurations ***
In the present embodiment, the inner side surface 43 of the instrument main body 12 is inclined from the upper end to the lower end at a certain angle to the outside in the width direction X, and is inclined at a gentler angle with the corner portion 44 as a boundary. , The shape of the inner surface 43 of the instrument body 12 can be changed as appropriate. Differences from the present embodiment will be mainly described with respect to the modified example.

The configuration of the lighting device 10 according to the modified example of the present embodiment will be described with reference to FIG. 7.

FIG. 7A is a view of a part of the lighting device 10 as viewed from above. FIG. 7B is a view showing a vertical cross section of the lighting device 10.

In this modification, the inner side surface 43 of the instrument body 12 is inclined inward in the width direction X from the upper end to the lower end, and is inclined outward in the width direction X with the corner portion 44 as a boundary.

The airflow passage formed from the first gap 55 to the first through hole 28 maintains a width wider than the width of the first gap 55 and wider than the width of the first through hole 28 from the inlet to the outlet of the airflow. .. In this modification, since the upright portion 57 stands up vertically, the distance between the upright portion 57 and the inner side surface 43 of the instrument main body 12 becomes longer as it is closer to the bottom surface 42 of the instrument main body 12. Therefore, the width of the airflow passage gradually widens from immediately after the inlet to the middle, and the air flowing in from the inlet easily flows inside the passage.

As described above, even in this modified example, since there is no narrowed portion between the inlet and the outlet of the airflow passage formed from the first gap 55 to the first through hole 28, the air flow amount is maximized. it can. Further, according to this modification, the inner surface 43 of the instrument body 12 is inclined inward in the width direction X from the upper end to the middle, and the boundary between the bottom surface 42 and the inner surface 43 of the instrument body 12 cannot be seen from directly below. Therefore, the design of the lighting device 10 is improved.

The airflow passage formed from the second gap 56 to the second through hole 29 is the same as the airflow passage formed from the first gap 55 to the first through hole 28, and thus the description thereof will be omitted.

Embodiment 2.
The difference between the present embodiment and the first embodiment will be mainly described.

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

FIG. 8A is a view of a part of the lighting device 10 as viewed from above. FIG. 8B is a view showing a vertical cross section of the lighting device 10.

In the first embodiment, the fixture is formed by combining the corner portion 44 provided on the inner side surface 43 of the fixture main body 12 and the upright portion 57 provided on the end 53 on the side far from the light source unit 14 of the first decorative material 51. It is blocked from seeing through the first through hole 28 from the opened surface 41 of the main body 12 through the first gap 55. On the other hand, in the present embodiment, the inner side surface 43 of the instrument body 12 has no corners 44, and the inner surface 43 of the instrument body 12 is flat. Therefore, only the upright portion 57 is blocked from seeing through the first through hole 28 from the opened surface 41 of the instrument main body 12 through the first gap 55.

The first through hole 28 is closer to the position where the light source unit 14 is attached than the position on the bottom surface 42 of the instrument body 12 on the extension line of the straight line connecting the lower end of the inner surface 43 of the instrument body 12 and the tip of the upright portion 57. It is provided in. That is, the first through hole 28 is from the position where the extension line of the straight line drawn from the point P'at the lower end of the inner surface 43 of the instrument body 12 to the point Q at the tip of the upright portion 57 intersects with the bottom surface 42 of the instrument body 12. Is also arranged near the center position of the bottom surface 42 in the width direction X. Therefore, since the first through hole 28 cannot be seen from any position when looking up at the lighting device 10, the design of the lighting device 10 can be maintained. Since the arrangement of the second through hole 29 is the same as the arrangement of the first through hole 28, the description thereof will be omitted.

The airflow passage formed from the first gap 55 to the first through hole 28 maintains a width wider than the width of the first gap 55 and wider than the width of the first through hole 28 from the inlet to the outlet of the airflow. .. In the present embodiment, the upright portion 57 is inclined at an angle smaller than the inner surface 43 of the instrument main body 12. That is, in the present embodiment, the distance between the upright portion 57 and the inner side surface 43 of the instrument body 12 becomes longer as the distance is closer to the bottom surface 42 of the instrument body 12. Therefore, the width of the airflow passage gradually widens from immediately after the inlet to the middle, and the air flowing in from the inlet easily flows inside the passage.

As described above, in the present embodiment, as in the first embodiment, the portion narrowed between the inlet and the outlet of the airflow passage formed from the first gap 55 to the first through hole 28 is formed. Therefore, the amount of air flow can be maximized.

The airflow passage formed from the second gap 56 to the second through hole 29 is the same as the airflow passage formed from the first gap 55 to the first through hole 28, and thus the description thereof will be omitted.

*** Explanation of the effect of the embodiment ***
In the present embodiment, the convex portion provided at the end far from the light source unit 14 of the decorative material prevents the through hole of the bottom surface 42 of the instrument body 12 from being seen through the open surface 41 of the instrument body 12. ing. Therefore, while hiding the through hole of the bottom surface 42 of the fixture body 12, the gap between the inner surface 43 of the fixture body 12 and the end far from the light source unit 14 of the decorative material is widened, and the fixture body 12 of the lighting device 10 is widened. It is possible to secure a sufficient amount of air flowing through the air.

Embodiment 3.
The difference between the present embodiment and the first embodiment will be mainly described.

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

FIG. 9A is a view of a part of the lighting device 10 as viewed from above. FIG. 9B is a view showing a vertical cross section of the lighting device 10.

In the first embodiment, the fixture is formed by combining the corner portion 44 provided on the inner side surface 43 of the fixture main body 12 and the upright portion 57 provided on the end 53 on the side far from the light source unit 14 of the first decorative material 51. It is blocked from seeing through the first through hole 28 from the opened surface 41 of the main body 12 through the first gap 55. On the other hand, in the present embodiment, the first decorative material 51 does not have the standing portion 57. Therefore, only the corner portion 44 prevents the first through hole 28 from being seen through the first gap 55 from the opened surface 41 of the instrument main body 12.

The first through hole 28 is located on the bottom surface 42 of the instrument body 12, where the light source unit 14 is located on an extension of a straight line connecting the tip of the corner 44 and the end 53 on the side far from the light source unit 14 of the first decorative material 51. It is provided near the mounting position. That is, the first through hole 28 is an extension of a straight line drawn from a point P at the tip of the corner 44 to a point Q'at the end 53 on the far side from the light source unit 14 of the first decorative material 51, and the bottom surface of the instrument body 12. It is arranged closer to the center position of the bottom surface 42 in the width direction X than the position where the 42 intersects. Therefore, since the first through hole 28 cannot be seen from any position when looking up at the lighting device 10, the design of the lighting device 10 can be maintained. Since the arrangement of the second through hole 29 is the same as the arrangement of the first through hole 28, the description thereof will be omitted.

The airflow passage formed from the first gap 55 to the first through hole 28 maintains a width wider than the width of the first gap 55 and wider than the width of the first through hole 28 from the inlet to the outlet of the airflow. .. In the present embodiment, as in the first embodiment, since there is no narrowed portion between the inlet and the outlet of the airflow passage formed from the first gap 55 to the first through hole 28, the air The distribution volume can be maximized.

The airflow passage formed from the second gap 56 to the second through hole 29 is the same as the airflow passage formed from the first gap 55 to the first through hole 28, and thus the description thereof will be omitted.

*** Explanation of the effect of the embodiment ***
In the present embodiment, the convex portion provided on the inner side surface 43 of the instrument body 12 prevents the through hole of the bottom surface 42 of the instrument body 12 from being seen through the opened surface 41 of the instrument body 12. Therefore, while hiding the through hole of the bottom surface 42 of the fixture body 12, the gap between the inner surface 43 of the fixture body 12 and the end far from the light source unit 14 of the decorative material is widened, and the fixture body 12 of the lighting device 10 is widened. It is possible to secure a sufficient amount of air flowing through the air.

Further, according to the present embodiment, the inner side surface 43 of the instrument body 12 is inclined inward in the width direction X from the upper end to the middle, and the boundary between the bottom surface 42 and the inner surface 43 of the instrument body 12 can be seen from directly below. Since there is no such thing, the design of the lighting device 10 is improved.

*** Other configurations ***
In the present embodiment, the inner side surface 43 of the instrument body 12 is inclined inward in the width direction X from the upper end to the lower end, and is inclined outward in the width direction X with the corner portion 44 as a boundary. The shape of the inner surface 43 of 12 can be changed as appropriate. Differences from the present embodiment will be mainly described with respect to the modified example.

The configuration of the lighting device 10 according to the modified example of the present embodiment will be described with reference to FIG.

FIG. 10A is a view of a part of the lighting device 10 as viewed from above. FIG. 10B is a view showing a vertical cross section of the lighting device 10.

In this modification, the inner side surface 43 of the instrument body 12 is inclined outward in the width direction X from the upper end to the lower end, once extends horizontally inside the width direction X, and then the width is again set with the corner portion 44 as a boundary. It is inclined to the outside of the direction X.

The airflow passage formed from the first gap 55 to the first through hole 28 maintains a width wider than the width of the first gap 55 and wider than the width of the first through hole 28 from the inlet to the outlet of the airflow. .. Even in this modified example, since there is no narrowed portion between the inlet and the outlet of the airflow passage formed from the first gap 55 to the first through hole 28, the air flow amount can be maximized.

The airflow passage formed from the second gap 56 to the second through hole 29 is the same as the airflow passage formed from the first gap 55 to the first through hole 28, and thus the description thereof will be omitted.

Although the embodiments of the present invention have been described above, two or more embodiments may be combined and implemented among these embodiments. Alternatively, of these embodiments, one embodiment or a combination of two or more embodiments may be partially implemented. The present invention is not limited to these embodiments, and various modifications can be made as needed.

10 Lighting device, 11 Lighting equipment, 12 Equipment body, 13 Fixture, 14 Light source unit, 15 Light source installation surface, 16 Back of holding part, 17 Light emitting surface, 18 LED, 19 Board, 20 Fixing hole, 21 Inner side wall, 22 Outside Wall, 23 bottom wall, 24 lid, 25 spring, 26 terminal block, 27 lead-in hole, 28 first through hole, 29 second through hole, 30 light source, 31 holding, 32 cover, 33 light source lid , 34 connecting part, 35 lighting device, 36 bottom wall part, 37 side wall part, 38 first curved part, 39 second curved part, 40 connecting part, 41 surface, 42 bottom surface, 43 inner surface, 44 corner part, 51st 1 decorative material, 52 second decorative material, 53 end, 54 end, 55 first gap, 56 second gap, 57 standing part, 58 standing part, 59 vertical part, 60 vertical part, 61 horizontal part, 62 horizontal part.

Claims (11)

It has a box shape with one surface open, a through hole serving as an airflow outlet is provided on the bottom surface facing the opened surface, and has an inner side wall and an outer wall formed continuously from the bottom surface. The instrument body and
A light source unit mounted at a position different from the position where the through hole is provided on the bottom surface of the fixture body, and
It extends from a position in contact with the light source unit through between the open surface of the instrument body and the through hole toward the inner surface of the inner side wall of the instrument body, and the end far from the light source unit and the said. It is provided with a decorative material provided with a gap serving as an inlet for the airflow between the inner surface of the instrument body and the inner surface.
At least one of the inner surface of the inner wall surface of the instrument body and the end of the decorative material on the side far from the light source unit sees the through hole from the open surface of the instrument body through the gap. A lighting device provided with a convex part that blocks it. The lighting device according to claim 1, wherein an upright portion that rises toward the bottom surface of the instrument body is provided as the convex portion at the end of the decorative material on the side far from the light source unit. The lighting device according to claim 2, wherein the distance between the upright portion and the inner surface of the fixture body is longer as the distance is closer to the bottom surface of the fixture body. The second or third aspect of the present invention, wherein the airflow passage is wider than the width of the gap and equal to the width of the through hole or wider than the width of the through hole from the inlet to the outlet of the airflow. Lighting device. The through hole is formed by the light source unit from a position on the bottom surface of the instrument body on an extension of a straight line connecting the boundary between the open surface of the instrument body and the inner surface of the instrument body and the tip of the upright portion. The lighting device according to any one of claims 2 to 4, which is provided near the mounted position. On the inner surface of the instrument body, a corner portion whose angle with respect to the bottom surface of the instrument body changes is provided as the convex portion.
The claim that the through hole is provided closer to the position where the light source unit is attached than the position on the extension line of the straight line connecting the tip of the corner portion and the tip of the standing portion on the bottom surface of the instrument body. The lighting device according to any one of 2 to 4. The lighting device according to claim 1, wherein an inner surface surface of the fixture body is provided with a corner portion whose angle with respect to the bottom surface of the fixture body changes as the convex portion. The through hole is closer to the position where the light source unit is attached than the position on the extension line of the straight line connecting the tip of the corner portion and the end of the decorative material on the side far from the light source unit on the bottom surface of the instrument body. The lighting device according to claim 7. The decorative material is formed from a vertical portion fixed between a position where the through hole is provided on the bottom surface of the fixture body and a position where the light source unit is attached, and a position connected to the vertical portion of the fixture body. The invention according to any one of claims 1 to 8, which has a horizontal portion extending toward an inner surface and having a horizontal portion provided with a gap between an end opposite to the vertical portion and the inner surface of the instrument body. Lighting equipment. The light source unit has a light source unit and a lighting device for lighting the light source unit.
The lighting device according to claim 9, wherein the horizontal portion is in contact with a portion of the light source unit between the light source portion and the lighting device. A second decorative material, which is a decorative material different from the first decorative material, which is the decorative material, is further provided.
A second through hole, which is a through hole different from the first through hole, is provided on the bottom surface of the instrument body.
The light source unit is attached between the position where the first through hole is provided and the position where the second through hole is provided on the bottom surface of the instrument body.
The second decorative material extends from a position in contact with the light source unit through between the open surface of the instrument body and the second through hole toward the other inner surface of the instrument body, and extends toward the other inner surface of the instrument body. A second gap, which is a gap different from the first gap, is provided between the end far from the device and the other inner surface of the instrument body.
At least one of the other inner surface of the fixture body and the end of the second decorative material on the side far from the light source unit is the second from the open surface of the fixture body through the second gap. The lighting device according to any one of claims 1 to 10, wherein a convex portion is provided to block the through hole from being seen through.

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