JP2023009713A - Luminaire and illuminating system - Google Patents

Abstract

To provide a luminaire and an illuminating system that can reduce vibration while making an appliance body more lightweight than a conventional one.SOLUTION: A luminaire comprises: an appliance body comprising a top plate part having a rectangle shape; a light source part formed in a long shape, and attached to the appliance body; and a power supply part for supplying lighting power to the light source part. The top plate part is provided with a plurality of attachment holes along the long direction of the top plate part. The light source part is provided in such a manner that the long direction of the light source part is along the long direction of the top plate part. The power supply part is arranged between the light source part and the plurality of attachment holes in the short direction of the top plate part.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to lighting fixtures and lighting systems mounted on ceilings and the like.

A lighting fixture attached to a mounting portion such as a ceiling is fixed to the mounting portion via a mounting portion such as a hanging bolt, for example. In such a lighting fixture, a fixture body fixed to a mounting part, a light source part installed in the fixture body, and a frame part covering the opening peripheral part of the fixture body and reflecting the light from the light source part are included. There is one provided (see Patent Document 1, for example). The lighting fixture of Patent Document 1 has a rectangular shape when viewed from the bottom, and a mounting hole into which the mounting portion is inserted is formed in the center of the lighting fixture body in the lateral direction, which is the longitudinal direction of the lighting fixture. A plurality of them are formed in the vertical direction, which is the hand direction. The lighting fixture is installed on the mounting part such that the fixture main body is accommodated in the opening provided in the mounting part. In addition, the lighting fixture of Patent Literature 1 has a lighting device (hereinafter referred to as a power supply section) for lighting two light source sections which are arranged with an interval in the horizontal direction.

JP 2016-066425 A

However, in the lighting fixture of Patent Literature 1, a power supply section whose lower surface is covered with a frame section is installed laterally outside the positions where the two light source sections are installed in the fixture body. In general, the main body of the fixture is made of sheet metal or the like. As the width of the fixture body increases, the weight of the fixture body and the weight of the lighting fixture increase. When the weight of the lighting equipment increases, the workability of the lighting equipment deteriorates due to the heavy load on workers. Furthermore, the shaking force due to vibration increases, and the lighting equipment tends to shake in the event of an earthquake or the like. It should be noted that the shaking of the lighting fixture due to vibration can be suppressed by bringing the fixture body into contact with the edge of the opening of the mounting part, but in this case, the width of the fixture body cannot be reduced. Weight increase of lighting fixtures cannot be avoided.

The present disclosure has been made to solve the above problems, and an object thereof is to provide a lighting fixture and a lighting system capable of suppressing vibration while reducing the weight of the fixture body as compared with the conventional one.

A lighting fixture according to the present disclosure includes a fixture body having a rectangular top plate, a light source section formed in an elongated shape and attached to the fixture body, and a power supply section that supplies lighting power to the light source section. , wherein the top plate portion is provided with a plurality of mounting holes along the longitudinal direction of the top plate portion, and the light source portion is configured such that the longitudinal direction of the light source portion is aligned with the longitudinal direction of the top plate portion. The power source section is arranged along the top plate section, and is arranged between the light source section and the plurality of mounting holes in the lateral direction of the top plate section.
Further, a lighting system according to the present disclosure is a lighting system that includes an attached portion opening provided in an attached portion, and the above-described lighting fixture, and the fixture main body is arranged in the attached portion opening. The attachment portion opening and the fixture main body are arranged such that the fixture main body in the lateral direction of the top plate part is closer than the gap between the fixture main body and the attachment part opening in the longitudinal direction of the top plate part. and the opening of the attachment portion are formed so as to be larger.

According to the present disclosure, since the power supply section is arranged between the light source section and the plurality of mounting holes, the width of the fixture body in the short direction of the top plate section can be made shorter than before, and the fixture body can be made lighter. can be In addition, by reducing the weight of the instrument body, the force of shaking the instrument body due to vibration is reduced. Therefore, it is possible to provide a lighting fixture and a lighting system capable of suppressing vibration while reducing the weight of the fixture body as compared with conventional lighting fixtures.

FIG. 2 is an external perspective view of a state before the lighting fixture according to Embodiment 1 is attached to the attached portion, as seen from below; 2 is an exploded perspective view of the lighting fixture of FIG. 1; FIG. FIG. 2 is a cross-sectional view of a state in which the lighting fixture of FIG. 1 is attached to the attached portion; FIG. 3 is a bottom view of a state in which a light source unit and a power supply unit are attached to the instrument main body of FIG. 2 as viewed from below; It is the perspective view which looked at the light source part of FIG. 2 from upper direction. FIG. 10 is an external perspective view of the lighting fixture according to the first modification of the first embodiment, viewed from below; FIG. 10 is an external perspective view of a lighting fixture according to a second modification of Embodiment 1 as viewed from above; FIG. 11 is an external perspective view of a lighting fixture according to a third modified example of Embodiment 1 as viewed from above;

Embodiments of the present disclosure will be described below with reference to the drawings. In each figure, the same reference numerals are given to the same or corresponding parts. In addition, in the description of the embodiments, the arrangement and orientation such as "upper", "lower", "left", "right", "front" and "back" are merely described as such for convenience of explanation. However, it does not limit the arrangement, orientation, etc. of the instruments and parts. The material, shape, size, etc. of the configuration of the instrument, parts, etc. can be appropriately changed within the scope of the present disclosure. Although the following description assumes that the lighting device 1 is installed on the ceiling, the mounting portion A on which the lighting device 1 is installed may be a side wall of a room.

Embodiment 1.
FIG. 1 is an external perspective view of a state before the lighting device 1 according to Embodiment 1 is attached to the attachment portion A, viewed from below. FIG. 2 is an exploded perspective view of the luminaire 1 of FIG. FIG. 3 is a cross-sectional view of the lighting fixture 1 of FIG. 1 attached to the attachment portion A. As shown in FIG. FIG. 4 is a bottom view of the state in which the light source section 20 and the power supply section 30 are assembled to the instrument main body 10 of FIG. 2, viewed from below. FIG. 5 is a perspective view of the light source section 20 of FIG. 2 as seen from above. A schematic configuration of a lighting fixture 1 according to Embodiment 1 will be described below with reference to FIGS. 1 to 5. FIG. The arrow X direction in FIG. 1 represents the width direction of the lighting device 1 , the arrow Y direction represents the depth direction of the lighting device 1 , and the arrow Z direction represents the height direction of the lighting device 1 . In addition, in the height direction, the direction of arrow Z1 is defined to represent the upward direction, and the direction of arrow Z2 is defined to represent the downward direction.

As shown in FIG. 1, the lighting fixture 1 includes a fixture body 10 fixed to a mounting portion A, an elongated light source section 20 for emitting light, and lighting power supplied to the light source section 20 to turn on the light source. A power supply unit 30 (see FIG. 2) that lights the unit 20 and a reflection frame 40 that reflects the light from the light source unit 20 are provided. The luminaire 1 is attached such that the fixture body 10 is embedded in an opening provided in the attachment portion A (hereinafter referred to as attachment portion opening A1).

In the example shown in FIG. 1, the attachment opening A1 has a square shape when viewed from the bottom. Hereinafter, it is defined that the length of the mounting portion opening A1 in the width direction (arrow X direction) is the horizontal width LAx, and the length of the mounting portion opening A1 in the depth direction (arrow Y direction) is the vertical width LAy. .

As shown in FIG. 3, the luminaire 1 is attached to the mounting portion A by fixing the fixture main body 10 with a fixture A2 such as a hanging bolt provided on the mounting portion A. As shown in FIG. The fixture A2 is composed of, for example, a suspension bolt and a nut. A lighting system 200 is composed of a mounting portion opening A1 provided in the mounting portion A and the luminaire 1 attached to the mounting portion opening A1.

As shown in FIG. 2, the instrument body 10 has a box shape with one side open. The appliance main body 10 has a rectangular top plate portion 11 and main body side portions 12 erected on the sides of the top plate portion 11 . In the example shown in FIG. 2, the lower surface of the instrument body 10 is open, the four sides of the top plate portion 11 are provided with body side portions 12 extending downward, and each body side portion 12 is covered. It is configured to face the inner wall A11 (see FIG. 1) of the attachment opening A1. Of the sides extending in the longitudinal direction and the sides extending in the transverse direction of the top plate portion 11, the side extending in the transverse direction is not provided with the main body side portion 12, and the side extending in the longitudinal direction is not provided. The body side portion 12 may be provided only on the sides.

The instrument main body 10 is formed by bending sheet metal or the like, for example. Note that the instrument body 10 may be formed by a molding method such as press or extrusion.

As shown in FIG. 4, the top plate portion 11 is arranged so that the width direction (arrow X direction) of the top plate portion 11 is shorter than the length of the top plate portion 11 in the depth direction (arrow Y direction). It has a rectangular shape. 1 and the appliance main body 10 shown in FIG. The gap G (see FIG. 3) between the apparatus main body 10 and the inner wall A11 of the opening A1 of the attachment part in the short direction (arrow X direction) of the top plate part 11 is larger than the gap of there is

A size relationship between the instrument main body 10 and the attachment opening A1 will be described more specifically with reference to FIGS. 1 and 4. FIG. The length of the top plate portion 11 in the short direction (arrow X direction), that is, the width Lx of the top plate portion 11 is the width direction (arrow X direction) of the attachment portion opening A1, that is, the attachment portion opening A1 is shorter than the lateral width LAx of the Further, the length of the top plate portion 11 in the longitudinal direction (arrow Y direction), that is, the vertical width Ly of the top plate portion 11 is the length of the attachment portion opening A1 in the depth direction (arrow Y direction), that is, the attachment portion It is equivalent to the vertical width LAy of the opening A1.

Here, the expression that the vertical width Ly of the top plate portion 11 and the vertical width LAy of the opening A1 of the attachment portion have the same length means that both have the same length, and that the instrument body 10 is the attachment portion. This includes the case where the vertical width Ly of the top plate portion 11 is slightly (for example, several millimeters) shorter than the vertical width LAy of the mounting portion opening A1 to the extent that it can be inserted into the opening A1.

As shown in FIG. 2, the top plate portion 11 has a mounting hole 111 into which a mounting fixture A2 (see FIG. 3) such as a hanging bolt is inserted, and a power supply hole 112 into which a power supply wiring (not shown) is inserted. is provided. The power supply wiring is connected to the power supply unit 30, and power is supplied from an external commercial power supply via the power supply wiring.

As shown in FIG. 3, a plurality of mounting holes 111 are provided along the longitudinal direction (direction of arrow Y) of the top plate 11. Mounting tools A2 such as suspension bolts are inserted into the respective mounting holes 111, and nuts screwed onto the suspension bolts. As a result, the edge of the mounting hole 111 in the top plate portion 11 is vertically sandwiched and fixed.

In the example shown in FIGS. 3 and 4, two mounting holes 111 are provided in the depth direction (direction of arrow Y) at the center XO in the width direction of the top plate portion 11. The top plate portion 11 is fixed to the attached portion A by A2. Also, in the example shown in FIG. 4 , the power supply hole 112 is provided between the two mounting holes 111 . In addition, the position in which the power supply hole 112 is provided in the top plate part 11, and the number of the power supply holes 112 are not specifically limited to this.

Further, as shown in FIG. 2 , the fixture main body 10 is provided with a light source mounting portion 13 for fixing the light source portion 20 . The light source mounting portion 13 has a pair of claws extending downward and has an inverted U shape. A claw tip portion 13a of each of the pair of claws is bent inward and upward. A light source unit 20 is inserted upward between a pair of claws of the light source mounting unit 13 and fixed. A plurality of light source mounting portions 13 are provided at intervals in the depth direction (arrow Y direction), and each light source portion 20 extending in the depth direction (arrow Y direction) is fixed by the plurality of light source mounting portions 13 . be. In the example shown in FIG. 2, two light source mounting portions 13 are provided in the depth direction (arrow Y direction), and the two light source mounting portions 13 form one light source portion 20 extending in the depth direction (arrow Y direction). It is configured to be fixed.

Further, as shown in FIG. 2, the top plate portion 11 is formed with a screw hole 113 for mounting the reflection frame 40 thereon. In the example shown in FIG. 2, a plurality of screw holes 113 are provided between two light source mounting portions 13 provided in the depth direction (arrow Y direction) on the top plate portion 11 .

As shown in FIG. 5, the light source unit 20 includes an elongated light emitting board 21 (see FIG. 3), a light source frame 22 to which the light emitting board 21 is attached, and a light source frame 22 attached to cover the light emitting board 21. and a cover 23 which is mounted. The light source unit 20 also has a light source fixing portion 24 that fits with the light source mounting portion 13 (see FIG. 2), and is attached to the fixture main body 10 via the light source fixing portion 24 .

Although not shown, the light emitting substrate 21 has a light source that emits light composed of, for example, a plurality of LEDs (Light Emitting Diodes), and a substrate on which the light source is installed. In the example shown in FIG. 5, the cover 23 has a planar lower surface. The cover 23 is made of, for example, a resin material. The light source unit 20 diffuses the light from the light emitting substrate 21 with the cover 23 and emits the light.

As shown in FIG. 2 , the elongated light source section 20 is attached to the fixture body 10 so that the longitudinal direction of the light source section 20 is along the longitudinal direction of the top plate section 11 (direction of arrow Y). The length of the light source unit 20 in the longitudinal direction is shorter than the length of the instrument body 10 in the depth direction (direction of arrow Y). The length in the longitudinal direction of the light source unit 20 may be the same length as the length in the depth direction (direction of arrow Y) of the device main body 10 .

In addition, a plurality of light source units 20 are provided in the width direction (arrow X direction) of the instrument body 10 . For this reason, a plurality of light source mounting portions 13 are provided on the top plate portion 11 at intervals in the width direction (the arrow X direction). In the example shown in FIGS. 2 and 3 , the light source units 20 extending in the depth direction (the direction of the arrow Y) are arranged on the left and right sides of the center XO in the width direction of the fixture body 10 . The left light source unit 20 is fixed by two light source mounting portions 13 provided on the left side of the widthwise center XO, and the right light source is fixed by two light source mounting portions 13 provided on the right side of the widthwise center XO. Part 20 is fixed.

Although the case where the number of light source mounting portions 13 twice the number of light source portions 20 is provided has been described, it is sufficient that each light source portion 20 extending in the depth direction (direction of arrow Y) can be fixed, and the number of light source mounting portions 13 is particularly It is not limited to this. Moreover, although the case where the light source mounting portion 13 has an inverted U shape has been described, the shape of the light source mounting portion 13 is not particularly limited to this.

As shown in FIG. 3 , the light source unit 20 is located between the attachment hole 111 and the main body side portion 12 in the lateral direction (the arrow X direction) of the top plate portion 11 . placed in a close position.

The power supply unit 30 converts electric power supplied from a commercial power source supplied through a power supply wire (not shown) and supplies the converted electric power to the light source unit 20 to light the light source unit 20 . For example, the power supply unit 30 converts AC power supplied from a commercial power source into DC power.

As shown in FIG. 2, the power supply unit 30 includes an elongated power supply case 31 extending in the depth direction (arrow Y direction) and a power supply circuit housed inside the power supply case 31 . and a substrate 32 (see FIG. 3). The power supply case 31 is fixed to the top plate portion 11 with screws or the like. In addition, the power supply unit 30 may be attached to the second reflecting unit 43 side, which will be described later, in the space between the fixture body 10 and the reflecting frame 40 .

As shown in FIG. 3, the power supply unit 30 is arranged between the light source unit 20 and the plurality of mounting holes 111 in the lateral direction of the top plate unit 11, that is, the width direction of the lighting fixture 1 (the arrow X direction). ing. Further, as shown in FIG. 2, the power supply unit 30 is attached to the fixture main body 10 so that the longitudinal direction of the power supply unit 30 is aligned with the longitudinal direction of the top plate 11, that is, the depth direction (arrow Y direction) of the lighting fixture 1. It is

In the example shown in FIG. 3, the power supply unit 30 is provided corresponding to each of the light source units 20 provided on both sides of the plurality of mounting holes 111, and each power supply unit 30 includes the corresponding light source unit 20 and the plurality of mounting holes. 111. The power supply unit 30 for lighting the light source unit 20 provided on the left side of the widthwise center XO is arranged on the left side of the widthwise center XO, and the light source unit 20 provided on the right side of the widthwise center XO is turned on. The power supply unit 30 to be lit is arranged on the right side of the center XO in the width direction. The corresponding power source section 30 and light source section 20 are connected by a connection line (not shown).

As shown in FIG. 2, the reflective frame 40 is provided on the fixture body 10 so as to surround the light source section 20, reflects the light from the light source section 20, and improves the luminous efficiency of the lighting fixture 1. . In the example shown in FIG. 1, the reflective frame 40 has a rectangular shape when viewed from below. As shown in FIG. 1, the length of the reflective frame 40 in the width direction (arrow X direction) of the lighting fixture 1 is defined as the width L40x of the reflective frame 40, and the depth direction (arrow Y direction) of the lighting fixture 1 is defined as The length of the reflective frame 40 is defined as the vertical width L40y of the reflective frame 40 .

As shown in FIG. 2, the reflective frame 40 includes two first reflective sections 42 arranged outside the light source section 20 in the width direction (direction of the arrow X) and a second reflective section arranged between the light source section 20 . It has a portion 43 and a support portion 41 that supports the first reflecting portion 42 and the second reflecting portion 43 . The support portion 41 has a square shape with an opening at the center when viewed from below, and the first reflection portion 42 and the second reflection portion 43 are provided inside the opening 41a.

As shown in FIG. 3 , the first reflecting portion 42 has an inclined surface 421 that is inclined upward toward the light source portion 20 side from the inner end 41 i in the width direction (arrow X direction) of the support portion 41 . . The inclined surface 421 extends in the depth direction (arrow Y direction) along the inner end 41i of the support portion 41, as shown in FIG.

As shown in FIGS. 2 and 3, a reflecting leg portion 422 extending upward toward the top plate portion 11 is provided at the end portion of the inclined surface 421 on the light source portion 20 side. A reflecting frame 40 is attached to the instrument body 10 via 422 . In the example shown in FIGS. 2 and 3, the distal end portion 422a of the reflecting leg portion 422 is bent so as to face the lower surface 11a of the top plate portion 11 on which the light source portion 20 and the like are installed. has multiple holes. The first reflecting portion 42 is fixed to the top plate portion 11 by screws 51 inserted into the holes of the tip portions 422 a of the reflecting leg portions 422 and the screw holes 113 of the top plate portion 11 .

As shown in FIG. 3, the second reflecting portion 43 has a first inclined surface 431 and a second inclined surface 432 adjacent to each other in the width direction (the direction of the arrow X) and having different inclinations. It is configured to protrude downward to form a top. The first inclined surface 431 provided on the left side of the second inclined surface 432 is inclined downward from the left light source unit 20 toward the second inclined surface 432 side, and the second inclined surface 432 is the first inclined surface. It is inclined upward from the surface 431 toward the light source unit 20 on the right side. The second reflecting portion 43 may be detachably attached to the supporting portion 41 .

Based on FIG.1 and FIG.4, the magnitude|size relationship of the fixture main body 10 and the reflective frame 40 is demonstrated. The instrument main body 10 and the reflective frame 40 have approximately the same length in the longitudinal direction (arrow Y direction) of the top plate 11, and have the same length in the short direction (arrow X direction) of the top plate 11. 40 is formed to be longer than the top plate portion 11 . In the example shown in FIGS. 1 and 4, the vertical width Ly of the top plate portion 11 is slightly shorter than the vertical width L40y of the reflective frame 40, and the horizontal width Lx of the top plate portion 11 is larger than the horizontal width L40x of the reflective frame 40. short. The fixture main body 10 and the reflecting frame 40 are such that the distance between the ends of the fixture main body 10 and the reflecting frame 40 in the longitudinal direction (arrow Y direction) of the top plate section 11 is ) is shorter than the distance between the ends of the fixture body 10 and the reflecting frame 40 in FIG. In the example shown in FIGS. 1 and 4, the top plate portion 11 has a vertically long rectangular shape with a vertical width Ly longer than the horizontal width Lx, and the reflective frame 40 has a horizontal width L40x longer than the vertical width L40y. It has a horizontally long rectangular shape.

As shown in FIG. 3, when the reflective frame 40 is attached to the fixture body 10, the two first reflective sections 42 are arranged outside the two light source sections 20 in the width direction (the direction of the arrow X). A second reflector 43 is arranged between the light sources 20 . As a result, the light from the two light source units 20 is reflected by the two first reflectors 42 and the second reflectors 43 , and the second reflectors 43 reflect the mounting hole 111 and the power supply hole of the top plate 11 . 112 and the power supply unit 30 installed on the top plate unit 11 are covered. Further, when the lighting device 1 is attached to the attachment portion A as shown in FIG.

Note that the number of light source units 20 in the lighting fixture 1 is not limited to the above case. For example, three or more light source units 20 may be provided, and one of them may be arranged so as to overlap with the center XO in the width direction. Also, the configuration of the light source unit 20 is not limited to the above. For example, the cover 23 of the light source unit 20 may have a curved lower surface. Also, although the configuration in which the light source section 20 is attached to the fixture body 10 by fitting the light source fixing section 24 and the light source attachment section 13 together has been described, the configuration in which the light source section 20 is attached to the fixture body 10 is not particularly limited to this. For example, the light source section 20 may be fixed to the fixture body 10 by a plate-like elastic member. Also, the number of the second reflecting portions 43 can be appropriately changed according to the number of the light source portions 20 .

FIG. 6 is an external perspective view of the lighting fixture 1A according to the first modification of the first embodiment, viewed from below. As shown in FIG. 6, the lighting fixture 1A according to the first modification includes three light source units 20A arranged in the width direction (the direction of the arrow X), the central light source unit 20A and the right light source unit 20A. , and between the central light source unit 20A and the left light source unit 20A, respectively. That is, in the lighting fixture 1A according to the first modified example, the reflective frame 40A has two second reflective portions 43 . In addition, in the first modified example, the cover 23A of the light source section 20A has a downwardly convex curved shape.

In the first modified example, the mounting holes 111 are formed in the top plate portion 11, for example, between the central light source portion 20A and the right light source portion 20A and between the central light source portion 20A and the left light source portion 20A. can be provided in plurality. The lighting fixture 1A also includes a power source section 30 (see FIG. 4) corresponding to each light source section 20A. That is, the power supply unit 30 for lighting the left light source unit 20 is arranged on the right side of the light source unit 20 , and the power supply unit 30 for lighting the right light source unit 20 is arranged on the left side of the light source unit 20 . The power supply unit 30 for lighting the central light source unit 20 may be arranged near the light source unit 20 and may be arranged either on the right side or the left side of the light source unit 20 . When two power supply units 30 are arranged between the light source units 20, the two power supply units 30 are preferably arranged in the depth direction (arrow Y direction).

Next, based on FIG. 2 and referring to FIGS. 1, 3 and 4, the effect of vibration suppression in the lighting fixture 1 will be described. As shown in FIG. 2, in the depth direction (arrow Y direction), which is the direction in which the two mounting holes 111 are arranged side by side, the mounting tool A2 (see FIG. 1) is inserted into each mounting hole 111 and the device body 10 is mounted. is held at two locations, the shaking of the lighting fixture 1 in the depth direction (arrow Y direction) due to vibration is suppressed.

In addition, since the vertical width Ly (see FIG. 4) of the top plate portion 11 is equal to the vertical width LAy (see FIG. 1) of the opening A1 of the mounting portion, vibration in the depth direction (arrow Y direction) The shaking of the lighting fixture 1 due to is further suppressed.

On the other hand, in the width direction (arrow X direction), which is a direction perpendicular to the direction in which the two mounting holes 111 are arranged side by side, the fixture body 10 is only supported at one point at the center XO in the width direction. 1 may sway left and right. However, in the present disclosure, as will be described below, the arrangement of each part and the weight reduction of the fixture body 10 also suppress the swing of the lighting fixture 1 in the width direction.

In the fixture body 10, the light source unit 20 is installed so that the longitudinal direction of the light source unit 20 is along the depth direction (arrow Y direction) in which the two mounting holes 111 are arranged side by side, and the power supply unit 30 is , are arranged between the light source unit 20 and the two mounting holes 111 . With this arrangement of components, it is not necessary to increase the length of the fixture body 10 in the width direction (the direction of the arrow X), that is, the width Lx, in accordance with the length of the light source section 20. There is no need to secure a place for installing the power supply section 30 outside the section 20.例文帳に追加Therefore, the width Lx of the instrument body 10 can be made shorter than before, and the weight of the instrument body 10 can be reduced. By reducing the weight of the fixture body 10, the force of shaking the fixture body 10 due to vibration is reduced, so that the lighting fixture 1 is less likely to swing.

In addition, among the constituent parts of the lighting device 1, heavy objects such as the power supply unit 30 are arranged on the two mounting holes 111 side of the light source unit 20 rather than outside the light source unit 20 in the main body 10 of the lighting device. The distance between the heavy object and the fixed part is shortened, and the lighting fixture 1 is less likely to shake.

Further, the weight reduction of the lighting fixture 1 reduces the load on the worker and improves workability. In addition, since the corresponding light source unit 20 and power supply unit 30 are arranged closer than before, the connection line between the light source unit 20 and the power supply unit 30 can be shortened, and the wiring is easy, so that the workability is further improved. . In addition, since the width Lx of the fixture body 10 is shortened, a gap G is formed between the lighting fixture 1 and the mounting portion A, thereby improving air permeability. The improved air permeability facilitates air cooling of the heat-generating components such as the power supply unit 30 and the light source unit 20, thereby suppressing deterioration of the components due to heat. Moreover, since the fixture main body 10 made of sheet metal or the like can be made smaller, the cost of the lighting fixture 1 can be reduced.

Next, a second modified example and a third modified example will be described. FIG. 7 is an external perspective view of a lighting fixture 1B according to a second modification of the first embodiment, viewed from above. In order to prevent the reflective frame 40 having a width L40x larger than the width Lx of the fixture body 10 accommodated in the attachment opening A1 (see FIG. 1) of the lighting fixture 1B of the second modification, the reflective frame 40 is , and reinforcing members 6B.

The reinforcing member 6B extends in the horizontal direction (the direction of the arrow X), is formed in a U-shape with a bent end portion 6Ba, and is made of sheet metal or the like, for example. In the lighting fixture 1B, the reinforcing member 6B is provided at the center in the depth direction (arrow Y direction). A width L6y of the reinforcing member 6B in the depth direction (arrow Y direction) is smaller than the vertical width Ly of the instrument body 10. As shown in FIG. The reinforcing member 6B connects the lateral (arrow X direction) end 40e of the reflecting frame 40 and the main body side 12, which is the lateral (arrow X direction) end of the device body 10 .

An end portion 6Ba of the reinforcing member 6B on the device body 10 side faces the outer surface side of the main body side portion 12 of the device body 10 . The reinforcing members 6B are provided on both sides of the device body 10 in the lateral direction (direction of arrow X). The instrument main body 10 is held by the ends 6Ba of the two reinforcing members 6B so as to be sandwiched in the width direction (direction of arrow X).

FIG. 8 is an external perspective view of the lighting fixture 1C according to the third modification of the first embodiment, viewed from above. Like the lighting fixture 1B of the second modification, the lighting fixture 1C of the third modification also includes a reinforcing member 6C that prevents the reflective frame 40 from rattling. The reinforcement member 6C is formed in a belt shape extending in the horizontal direction (the arrow X direction), and is made of sheet metal or the like, for example. In 1 C of lighting fixtures, 6 C of reinforcement members are provided in the center of the depth direction (arrow Y direction). A width L6y of the reinforcing member 6C in the depth direction (arrow Y direction) is smaller than the vertical width Ly of the instrument body 10. As shown in FIG.

The ends 6Ca on both sides in the lateral direction (arrow X direction) of the reinforcement member 6C of the third modification are bent and protrude downward, and the first reflecting portions on both sides in the lateral direction (arrow X direction) in the reflecting frame 40 Face to face with 42. Further, in the reinforcing member 6C, a hole 61 facing the power source hole 112 (see FIG. 4) of the instrument body 10 is provided at the center XO in the width direction. A fixing hole 62 into which a screw (not shown) for fixing the part 11 is inserted is provided. The first reflecting portions 42 on both sides of the reflecting frame 40 are held by the ends 6Ca on both sides of the reinforcing member 6C fixed to the device main body 10 via screws so as to be sandwiched in the width direction (direction of arrow X). there is

The reinforcing member 6B of the second modified example or the reinforcing member 6C of the third modified example connects the device main body 10 and the parts on both sides of the reflection frame 40 in the horizontal direction (the direction of the arrow X). Shaking in the direction (arrow X direction) can be further suppressed. In addition, since the reinforcement members 6B and 6C having a short width L6y may be added without enlarging the instrument main body 10 as a whole, weight increase can be suppressed.

Note that each modified example can be modified or omitted as appropriate. For example, in the second modified example and the third modified example, the reflecting frame 40 is fixed to the instrument main body 10 by the reinforcing member 6B, so the reflecting leg portion 422 of the second reflecting portion 43 shown in FIG. 2 is omitted. can be done.

As described above, the fixture body 10 of Embodiment 1 includes the fixture body 10 having the rectangular top plate portion 11, the elongated light source section 20 attached to the fixture body 10, and the light source section and a power supply unit 30 that supplies lighting power to 20 . A plurality of mounting holes 111 are provided in the top plate portion 11 along the longitudinal direction (the arrow Y direction) of the top plate portion 11 . The light source unit 20 is provided such that the longitudinal direction of the light source unit 20 is aligned with the longitudinal direction (arrow Y direction) of the top plate unit 11, and the power supply unit 30 is provided in the short side direction (arrow X direction) of the top plate unit 11. , are arranged between the light source unit 20 and the plurality of mounting holes 111 .

As a result, since the power supply unit 30 is arranged between the light source unit 20 and the plurality of mounting holes 111, the lateral width Lx of the fixture body 10 in the lateral direction (the direction of the arrow X) of the top plate unit 11 is larger than that of the conventional one. can be shortened, and the instrument body 10 can be lightened. In addition, by reducing the weight of the instrument body 10, the force with which the instrument body 10 shakes due to vibration is reduced. Therefore, it is possible to provide the lighting fixture 1 capable of suppressing vibration while reducing the weight of the fixture body 10 more than conventionally.

In addition, the power supply unit 30 is formed in an elongated shape, and the longitudinal direction of the power supply unit 30 is aligned with the longitudinal direction of the top plate unit 11 (the arrow Y direction) between the light source unit 20 and the plurality of mounting holes 111 . are arranged along. Accordingly, the elongated power supply unit 30 can be mounted without increasing the width Lx of the instrument body 10 due to the length of the power supply unit 30 .

The lighting fixture 1 also includes a reflective frame 40 provided on the fixture body 10 so as to surround the light source section 20 . Between the instrument body 10 and the reflecting frame 40, the distance α (see FIG. 8) between the ends of the instrument body 10 and the reflecting frame 40 in the longitudinal direction (arrow Y direction) of the top plate part 11 is shorter than the distance β (see FIG. 8) between the ends of the instrument body 10 and the reflecting frame 40 in the lateral direction (arrow X direction) of the top plate portion 11, and the lateral direction (arrow X direction) of the top plate portion 11 , the reflecting frame 40 is formed to be longer than the instrument body 10. - 特許庁

As a result, even when the reflecting frame 40 is provided, the width L40x of only the reflecting frame 40 is made larger than the width Lx of the fixture body 10, so that the weight of the lighting fixture 1 as a whole is suppressed and the luminous efficiency of the reflecting frame 40 is increased. can be improved.

In addition, the lighting device 1 includes a U-shaped reinforcing member 6B or 6C that connects the device main body 10 and the portions on both sides of the reflective frame 40 in the short side direction (arrow X direction) of the top plate portion 11. there is This makes it possible to further suppress shaking of the top plate portion 11 in the lateral direction (direction of arrow X) against vibration. In addition, since the reinforcement member 6B or 6C can be added without enlarging the entire fixture body 10, weight increase of the fixture body 10 and the lighting fixture 1 can be suppressed.

The fixture body 10 has a body side portion 12 that is erected on a side edge extending in the longitudinal direction (arrow Y direction) of the top plate portion 11. It is arranged at a position closer to the body side portion 12 than the attachment hole 111 between the body side portion 12 and the body side portion 12 . As a result, a place for installing other components such as the power supply unit 30 can be provided closer to the plurality of mounting holes 111 than the light source unit 20 .

Also, the light source units 20 are provided on both sides of the plurality of mounting holes 111 in the lateral direction (the arrow X direction) of the top plate portion 11 . The power supply unit 30 is provided corresponding to each of the light source units 20 provided on both sides of the plurality of mounting holes 111 , and each power supply unit 30 is provided between the corresponding light source unit 20 and the plurality of mounting holes 111 . are placed.

As a result, the corresponding light source part 20 and power supply part 30 are arranged closer than before, so that the connection line between the light source part 20 and the power supply part 30 can be shortened, wiring is easy, and workability is improved. In addition, since the power supply unit 30 and the light source unit 20 are provided on both sides of the plurality of mounting holes 111 in the lateral direction (the arrow X direction) of the top plate 11, there is no difference in weight between the two sides of the lighting device 1 in the horizontal direction. It can be made smaller and shakes can be further suppressed.

Further, the lighting system 200 according to Embodiment 1 includes a mounting portion opening A1 provided in the mounting portion A, and the lighting apparatus 1 described above, and the fixture main body 10 is arranged in the mounting portion opening A1. It is a thing. Attached portion opening A1 and fixture main body 10 are separated from the gap between fixture main body 10 and attached portion opening A1 in the longitudinal direction (arrow Y direction) of top plate portion 11 in the lateral direction (arrow X direction) of top plate portion 11. direction) between the instrument main body 10 and the attachment opening A1 is formed to be larger.

As a result, air permeability between the lighting device 1 and the mounting portion A is improved by the gap G between the fixture body 10 and the mounting portion opening A1 in the lateral direction (arrow X direction) of the top plate portion 11 . The improved air permeability facilitates air cooling of the heat-generating components such as the power supply unit 30 and the light source unit 20, thereby suppressing deterioration of the components due to heat.

Reference Signs List 1, 1A, 1B, 1C Lighting fixture 6B, 6C Reinforcing member 6Ba, 6Ca End 10 Instrument main body 11 Top plate 11a Lower surface 12 Main body side 13 Light source attachment 13a Nail tip 20 Light source part 20A Light source part 21 Light emitting substrate 22 Light source frame 23, 23A Cover 24 Light source fixing part 30 Power supply part 31 Power supply case 32 Power supply circuit board 40, 40A Reflection frame 40e End 41 Support Part, 41a opening, 41i inner end, 42 first reflecting part, 43 second reflecting part, 51 screw, 61 hole, 62 fixing hole, 111 mounting hole, 112 power supply hole, 113 screw hole, 200 lighting system, 421 inclined surface , 422 reflecting leg portion, 422a tip portion, 431 first inclined surface, 432 second inclined surface, A attached portion, A1 attached portion opening, A11 inner wall, A2 fixture, G gap, L40x, LAx, Lx width, L40y, LAy, Ly vertical width, XO width direction center.

Claims (7)

a device body having a rectangular top plate;
a light source unit formed in an elongated shape and attached to the instrument body;
a power supply unit that supplies lighting power to the light source unit,
The top plate portion is provided with a plurality of mounting holes along the longitudinal direction of the top plate portion,
The light source unit is provided such that the longitudinal direction of the light source unit is along the longitudinal direction of the top plate unit,
The lighting fixture, wherein the power supply section is arranged between the light source section and the plurality of mounting holes in the short-side direction of the top plate section. The power supply section is formed in an elongated shape, and is arranged between the light source section and the plurality of mounting holes such that the longitudinal direction of the power supply section is along the longitudinal direction of the top plate section. The luminaire according to claim 1. A reflective frame provided on the fixture body so as to surround the light source,
The fixture main body and the reflective frame are such that the distance between the ends of the fixture main body and the reflective frame in the longitudinal direction of the top plate section is equal to that of the fixture main body and the reflection frame in the lateral direction of the top plate section. 3. According to claim 1 or 2, the reflecting frame is formed so as to be shorter than the distance between the end portions of the top plate portion and longer than the instrument main body in the lateral direction of the top plate portion. Luminaire as described. The lighting fixture according to claim 3, further comprising a U-shaped reinforcing member that connects the fixture main body and portions of the top plate portion on both sides of the reflecting frame in the short-side direction. The appliance main body has a main body side part erected on a side edge extending in the longitudinal direction of the top plate part,
The light source unit is arranged at a position closer to the main body side than the mounting hole between the mounting hole and the main body side in the lateral direction of the top plate. The luminaire according to any one of . The light source unit is provided on both sides of the plurality of mounting holes in the lateral direction of the top plate,
The power supply unit is provided corresponding to each of the light source units provided on both sides of the plurality of mounting holes, and each power supply unit is disposed between the corresponding light source unit and the plurality of mounting holes. The luminaire according to any one of claims 1 to 5. A lighting system comprising: an attached portion opening provided in an attached portion; and the lighting fixture according to any one of claims 1 to 6, wherein the fixture body is arranged in the attached portion opening. There is
The attachment portion opening and the fixture main body are separated from the fixture main body in the lateral direction of the top plate section by a gap between the fixture main body and the attachment section opening in the longitudinal direction of the top plate section. A lighting system formed so that a gap with an opening of a mounting part is larger.

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