JP2022024053A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire that can increase an amount of light to be applied to a ceiling surface side and a lateral side, and can improve a feeling of brightness.

SOLUTION: A luminaire comprises: a body in which a concave part 11 is formed along a longitudinal direction; and a light source part 2 comprising a plurality of light emitting elements 22, and a translucent cover member 24 covering the plurality of light emitting elements 22 and having light diffusibility, and in which the plurality of light emitting elements 22 is arranged closer to a front side than a reference line A connecting both ends on an opening side of the concave part 11.

SELECTED DRAWING: Figure 19

COPYRIGHT: (C)2022,JPO&INPIT

Description

An embodiment of the present invention relates to a lighting fixture that uses a light emitting element such as an LED as a light source.

Conventionally, in a lighting fixture using a fluorescent lamp as a light source, a fixture main body and a reflector are usually provided separately, and parts such as a lighting device are arranged on the fixture main body.

Japanese Unexamined Patent Publication No. 8-161914 Japanese Unexamined Patent Publication No. 2010-73670 Japanese Unexamined Patent Publication No. 2010-115949

It is an object of the present invention to provide a lighting fixture capable of improving the appearance.

The luminaire of the embodiment has a storage recess along the longitudinal direction composed of a top plate portion along the longitudinal direction and side walls formed so as to hang down from both sides of the top plate portion toward the front side. A main body in which a pair of mounting holes through which a pair of mounting bolts penetrate is formed in the top plate portion; at least a part thereof is arranged in the recess so as to cover the opening side end portion of the housing recess. A light source unit; a mounting bolt penetrating from the mounting hole and a lighting device arranged in the housing recess so as not to overlap in the longitudinal direction of the housing recess and supplying electric power to the light emitting element; It is characterized by doing.

According to the embodiment of the present invention, it is possible to provide a lighting fixture capable of improving the appearance.

It is a perspective view which shows the lighting equipment which concerns on 1st Embodiment of this invention. It is a perspective view which shows the lighting fixture as seen from the back side. It is an exploded perspective view which shows the lighting fixture. 2 is a cross-sectional view taken along the line XX in FIG. 2. It is sectional drawing which shows the attached state of the light source part to the luminaire body in the luminaire. It is a perspective view which shows the main body of the instrument. It is a side view which shows the main body of the instrument. It is a perspective view which shows the mounting member. It is a side view which shows the mounting member. It is a perspective view which shows the cover member. It is a side view which shows the cover member. It is a perspective view which shows the locking member. It is a side view which shows the locking member. It is a perspective view which shows from the front side with the light source part removed in the lighting fixture. It is a perspective view which shows from the front side including the mounting bolt by removing the light source part in the lighting fixture. It is explanatory drawing which shows typically the state in which a plurality of the same lighting fixtures are installed in series. It is sectional drawing which shows the wiring state of the feed line when a plurality of the same lighting fixtures are installed in series. It is sectional drawing which shows the operation of releasing the locking member in the luminaire. It is sectional drawing which shows the lighting fixture which concerns on 2nd Embodiment (Example 1) of this invention. It is sectional drawing which shows the lighting fixture which concerns on 2nd Embodiment (Example 2) of this invention. It is sectional drawing which shows the lighting fixture which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows the lighting fixture which concerns on 4th Embodiment of this invention. Similarly, it is sectional drawing which shows the lighting fixture which concerns on 4th Embodiment of this invention. It is sectional drawing which shows the lighting fixture which concerns on 5th Embodiment of this invention. Similarly, it is sectional drawing which shows the lighting equipment which concerns on 5th Embodiment of this invention. It is sectional drawing which shows the lighting fixture which concerns on 6th Embodiment of this invention.

Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 18. 1 to 5 show a lighting fixture, FIGS. 6 and 7 show the fixture main body 1, FIGS. 8 and 9 show the mounting member 21, and FIGS. 10 and 11 show the translucent cover member 24. 12 and 13 show the locking member 4. 14 to 15 show a state in which the light source unit 2 is removed from the instrument main body 1, FIGS. 16 and 17 show a wiring state of the feed line 6, and FIG. 18 shows a state in which the locking member 4 is released. It shows the operation.
It should be noted that the illustration of wiring members such as lead wires is omitted, the same parts are designated by the same reference numerals in each drawing, and duplicated explanations are omitted.

1 to 4 show a ceiling-mounted lighting fixture installed on the ceiling surface, and the lighting fixture has an inverted Fuji shape, and is a horizontally long and long fixture main body. 1 is provided with a light source unit 2 and a lighting device 3 arranged on the instrument main body 1, and a locking member 4 for attaching and holding the light source unit 2 to the instrument main body 1.

As shown with reference to FIGS. 6 and 7, the instrument main body 1 is formed by bending a galvanized steel plate, and a housing recess 11 is formed in a substantially central portion along the longitudinal direction. The accommodating recess 11 is composed of a top plate portion 11a and a side wall portion 11b formed by being bent so as to hang down from both sides of the top plate portion 11a at a right angle to the front surface side. Further, both sides of the opening side of the accommodating recess 11 in the width direction, that is, both sides of the side wall 11b on the front surface side are bent in a substantially V shape in a side view, and the side plate portions 11c are formed along the accommodating recess 11. It is formed. Therefore, the side plate portion 11c has an inclined surface whose side surface shape expands toward the back surface.

The accommodating recess 11 and the side plate portion 11c are integrally formed by bending a plate material, and at least the front surface thereof is painted white so as to have high light reflectance.
Therefore, the surface of the inclined surface of the side plate portion 11c forms a reflecting surface, and the side plate portion 11c functions as a reflecting plate.

A pair of locking claw passage holes 11d are formed at both ends of the side plate portion 11c of the accommodating recess 11 in the longitudinal direction. The locking claw 4a of the locking member 4, which will be described later, is arranged in the locking claw passage hole 11d. Further, a release hole 11e is formed in the side plate portion 11c so as to face the pair of locking claw passage holes 11d. The release hole 11e is used to release the locking claw 4a of the locking member 4 as described later.

Further, as mainly shown in FIGS. 2 and 6, a pair of mounting holes 11f are formed on the back surface side of the instrument main body 1, that is, on both end sides of the top plate portion 11a. A pair of mounting bolts Bt provided in the ceiling structure penetrate through the mounting holes 11f from the outer surface side, and the instrument main body 1 is mounted on the ceiling surface. A dome-shaped reinforcing portion 11g is formed around the mounting hole 11f in order to reinforce the mounting hole 11f. Further, end plates 12 having a substantially inverted trapezoidal shape are attached to both ends of the instrument main body 1 in the longitudinal direction.
The light source unit 2 includes a mounting member 21, a substrate 23 on which a plurality of light emitting elements 22 are mounted, and a cover member 24.

As shown with reference to FIGS. 8 and 9, the mounting member 21 is formed in a horizontally long and long shape like the instrument main body 1, and has a flat mounting surface 21a along the longitudinal direction. A first side wall 21b that rises at right angles from both sides of the mounting surface 21a toward the back surface, and a second side wall that extends horizontally from the first side wall 21b and further rises inwardly toward the back surface. It has a side wall 21c of. Further, on the mounting surface 21a side of the first side wall 21b, a plurality of raised pieces 21d are formed so as to project outward in the width direction at substantially equal intervals.
A material having good heat conduction, such as a galvanized steel plate or an aluminum plate, is used for the mounting member 21.

The substrate 23 is formed in a substantially rectangular shape, and a plurality of the substrates 23, that is, four substrates 23 are arranged in a straight line and screwed to the mounting surface 21a of the mounting member 21 so that the back surface side thereof is in close contact with the mounting surface 21a. It is installed so that it can be used. A plurality of light emitting elements 22 are mounted on the surface side of the substrate 23.

The substrate 23 is made of a flat plate of glass epoxy resin which is an insulating material, and has a wiring pattern formed of copper foil on the surface side. Further, a resist layer is appropriately applied. When the material of the substrate 23 is an insulating material, a ceramic material or a synthetic resin material can be applied. Further, when it is made of metal, it is preferable to apply a material having good thermal conductivity and excellent heat dissipation such as aluminum.

The light emitting element 22 is an LED, which is a surface mount type LED package. It is roughly composed of an LED chip arranged in a main body made of ceramics and a translucent resin for molding such as an epoxy resin or a silicone resin that seals the LED chip.

The LED chip is a blue LED chip that emits blue light. A fluorescent substance is mixed in the translucent resin, and in order to be able to emit white light, a yellow fluorescent substance that emits yellowish light having a complementary color relationship with blue light is used. There is.

As the LED, the LED chip may be mounted directly on the substrate 23, or a bullet-shaped LED may be mounted, and the mounting method and format are not particularly limited.

As shown with reference to FIGS. 10 and 11, the cover member 24 is made of a translucent material such as acrylic or polycarbonate, and is formed in a long and semi-cylindrical shape. Then, on the open end side of the cover member 24, a fitting groove 24a as a pair of fitting portions is formed along the longitudinal direction. Further, the cover member 24 has a function of diffusing the light emitted from the light emitting element 22 by being subjected to a frost treatment. The cover member 24 may be appropriately mixed with a diffusing material to provide light diffusivity.

The cover member 24 configured in this way is attached to the mounting member 21 so as to cover the substrate 23 on which the plurality of light emitting elements 22 are mounted. Specifically, as shown in FIG. 4, the cut-up piece 21d of the mounting member 21 slides into the pair of fitting grooves 24a of the cover member 24 to be fitted and mounted.
As described above, the light source unit 2 is configured by combining and integrating the mounting member 21, the substrate 23 on which the plurality of light emitting elements 22 are mounted, and the cover member 24.

Further, the lighting device 3 is attached to the inside of the top plate portion 11a in the accommodating recess 11 of the fixture main body 1. The lighting device 3 is configured by accommodating a circuit board and circuit components mounted on the circuit board in a box-shaped case, is connected to a commercial AC power supply AC, receives the AC power supply AC, and outputs a DC. Is to generate. The lighting device 3 is configured, for example, by connecting a smoothing capacitor between the output terminals of the full-wave rectifier circuit and connecting a DC voltage conversion circuit and a current detection means to the smoothing capacitor. Therefore, the lighting device 3 is connected to the light emitting element 22 via the substrate 23, and the DC output thereof is supplied to the light emitting element 22 to control the lighting of the light emitting element 22.

As shown in FIGS. 4 and 14, the lighting device 3 is arranged so that both side walls of the case are in close contact with the side wall 11b of the accommodating recess 11. Therefore, the lighting device 3 plays a role of reinforcing the fixture main body 1. Here, "without gap" means that the side wall of the lighting device 3 and the side wall 11b of the accommodating recess 11 do not need to be in full contact with each other, and are grasped in relation to the reinforcing effect, which is slight. The presence of gaps is acceptable. Further, the lighting device 3 is arranged in the vicinity of the one mounting hole 11f.

Further, a terminal block 5 is attached to the inside of the top plate portion 11a in the accommodating recess 11.
A power line, a feed line, and a dimming signal line are connected to the terminal block 5.

As shown with reference to FIGS. 12 and 13, the locking member 4 is formed by being bent in a substantially U shape by a spring material such as a stainless steel material. Further, at both ends of the locking member 4, locking claws 4a as locking portions are formed by bending inward. As shown in FIGS. 2 to 4, the locking members 4 are attached in pairs to both ends of the accommodating recess 11 of the instrument body 1 so as to overlap from the outside. More specifically, as shown in FIG. 4, the locking claw 4a is arranged through the locking claw passage hole 11d of the accommodating recess 11, and is attached to the outside of the accommodating recess 11 by a fixing means (see FIG. 3) such as a screw. It is designed to be used.
As shown in FIG. 5, a light source unit 2 is attached to the locking member 4 configured in this way.
That is, the light source portion 2 is arranged so as to cover the opening side of the accommodating recess 11.

When the light source unit 2 is moved with respect to the instrument main body 1 in the direction of the arrow shown in the drawing, the inclined second side wall 21c of the mounting member 21 comes into contact with the locking claw 4a of the locking member 4. By further moving the light source unit 2 from this state and pushing it into the accommodating recess 11 against the elasticity of the locking claw 4a, the locking claw 4a is elastically deformed outward by the second side wall 21c. The light source unit 2 moves into the accommodating recess 11. Then, when the second side wall 21c enters the predetermined amount accommodating recess 11, the elastic deformation of the locking claw 4a is released, and the mounting member 21 is engaged and held in a predetermined position by the locking claw 4a (see FIG. 4). ).
In this case, since the second side wall 21c is formed in an inclined shape, the light source unit 2 can be smoothly attached in relation to the locking claw 4a.

In this state, the second side wall 21c of the mounting member 21 comes into surface contact with the side wall 11b of the accommodating recess 11, and the mounting member 21 and the instrument main body 1 are thermally coupled. .. Further, since the locking member 4 is attached so as to overlap from the outside of the accommodating recess 11 of the instrument main body 1, even if the fixing means such as a screw is removed, the light source portion 2 is prevented from falling. It can be done and safety can be ensured. If the locking member 4 is attached to the inside of the accommodating recess 11 by the fixing means, there is a risk that the light source unit 2 will fall together with the locking member 4 if the fixing means is disengaged.
The installation state of the lighting fixture configured as described above on the ceiling surface C will be described mainly with reference to FIGS. 4 and 5.

First, in the installation, as shown in FIG. 5, a pair of mounting bolts Bt provided on the ceiling structure are passed through the mounting holes 11f of the top plate portion 11a of the instrument main body 1 from the outer surface side, and the mounting bolts Bt are passed through. Tighten the nut Nt from the inner surface side of the top plate portion 11a via a washer. As a result, the reinforcing portion 11g on the outer surface side of the top plate portion 11a and one end on the back surface side of the side plate portion 11c are in close contact with the ceiling surface C, and the instrument main body 1 is installed on the ceiling surface C. In this case, as shown in FIG. 15, the mounting hole 11f (on the left side in the drawing) through which the mounting bolt Bt passes and is tightened by the nut Nt is formed in the vicinity of the portion where the lighting device 3 is arranged. It is possible to suppress the deformation of the instrument main body 1 due to the tightening force due to the reinforcing effect of.

Subsequently, the light source unit 2 is attached to the instrument main body 1. In this case, as shown in FIG. 4, a predetermined storage space is secured in the storage recess 11. Therefore, it is possible to arrange the lighting device 3, the terminal block 5, and the like in the accommodating recess 11, and by attaching the light source unit 2 to the instrument main body 1, the lighting device 3, the terminal block 5, and the wiring-related members are light sources. Since it is covered by the portion 2 and becomes difficult to see in appearance, it is possible to improve the appearance without providing a special member.

Further, since the side plate portion 11c provided as the reflector is integrally formed in the instrument main body 1 having the storage recess 11, the number of parts can be reduced and the construction work can be saved.

Next, as shown in FIG. 16, a plurality of the lighting fixtures may be arranged in series on the ceiling surface C. In this case, it is necessary to continuously connect each luminaire with a feed line 6 (power line). In the lighting fixture of the present embodiment, as shown in FIG. 15, a feed line passage hole 6a is formed in the side wall 11b of the accommodating recess 11 in the vicinity of the terminal block 5. Therefore, the feed wire 6 is led out from the terminal block 5 through the feed wire passage hole 6a, and as shown in FIG. 17, passes through the space formed by the outside of the accommodating recess 11 of the instrument main body 1 and the side plate portion 11c. It can be connected to the next stage lighting equipment. As a result, the feed line 6 can be wired in a cohesive manner by effectively utilizing the space.

Next, as shown in FIG. 18, an operation of releasing the locking member 4 in order to remove the light source unit 2 from the instrument main body 1 by maintenance or the like will be described. For example, using a tool such as a screwdriver, the tip of the screwdriver is inserted into the release hole 11e formed in the side plate portion 11c. Next, the locking claw 4a of the locking member 4 is deformed by a driver in the direction of the arrow shown in the drawing and removed from the locking claw passage hole 11d. Then, since the engagement of the locking claw 4a is disengaged (the engagement of the locking claw 4a of the other locking member 4 is also disengaged), the light source portion 2 can be removed by pulling the light source portion 2 downward. .. Since the release hole 11e is formed in this way, the light source unit 2 can be easily removed.

As typified by FIG. 4, when electric power is supplied to the lighting device 3 in the installed state of the lighting equipment, the light emitting element 22 is energized via the substrate 23, and each light emitting element 22 is lit. The light emitted from the light emitting element 22 is transmitted through the diffusible translucent cover member 24 and diffused, and is mainly radiated downward, and a part of the light is reflected on the surface of the side plate portion 11c. Also, the ceiling surface C is irradiated. This makes it possible to increase the brightness of the lighting. Further, the heat generated from each light emitting element 22 is conducted to the mounting member 21 from the back surface side of the substrate 23, and further conducted to the appliance main body 1 from the second side wall 21c of the mounting member 21 to be dissipated. As a result, the temperature rise of the light emitting element 22 can be suppressed.

As described above, according to the present embodiment, since the side plate portion 11c is integrally formed in the instrument main body 1 having the accommodating recess 11, the number of parts can be reduced and the construction work can be saved. can. Further, since a predetermined accommodation space is secured in the accommodation recess 11, the lighting device 3 can be efficiently arranged, and further, by attaching the light source unit 2 to the instrument main body 1, the lighting device 3 can be efficiently arranged. Parts such as the lighting device 3 are covered by the light source unit 2, and the appearance can be improved.
Further, since the lighting device 3 is arranged in the accommodating recess 11 without a gap, the fixture main body 1 can be reinforced.

Next, the lighting fixture according to the second embodiment of the present invention will be described with reference to FIGS. 19 and 20. The same or corresponding parts as those in the first embodiment are designated by the same reference numerals, and duplicated description will be omitted.

(Example 1) As shown in FIG. 19, in this embodiment, the mounting position of the light emitting element 22 is made to protrude from the opening side end of the accommodating recess 11. That is, when the horizontal line connecting between the openings side ends of the accommodating recess 11 is set as the reference line A, the light emitting element 22 is arranged so as to protrude from the reference line A to the front surface side. As a result, the light emitted from the light emitting element 22 passes through the translucent cover member 24 having diffusivity, is diffused, is radiated downward, and is radiated to the side plate portion 11c and the ceiling surface C. It is possible to increase the amount of light, and it is possible to increase the feeling of brightness.

Further, in the present embodiment, the cover member 24 projects outward from the extension line B of the outer line of the inclined surface extending toward the back surface of the side plate portion 11c. Therefore, the light emitted from the light emitting element 22 is transmitted and diffused through the diffusible translucent cover member 24, and the amount of light irradiated to the side plate portion 11c and the ceiling surface C can be further increased. It becomes possible and the feeling of brightness can be increased.

In this embodiment, either a configuration in which the light emitting element 22 is arranged so as to project from the reference line A to the front side or a configuration in which the cover member 24 protrudes from the extension line B is selected. May be good.

(Example 2) As shown in FIG. 20, in this embodiment, a chevron-shaped convex portion 24b is formed on the inner surface side of the cover member 24. The convex portion 24b can promote the diffusivity of the light emitted from the light emitting element 22, and can increase the amount of light emitted to the side plate portion 11c and the ceiling surface C.

Next, the lighting fixture according to the third embodiment of the present invention will be described with reference to FIG. 21. The same or corresponding parts as those in the first embodiment are designated by the same reference numerals, and duplicated description will be omitted.

In the present embodiment, the cover member 24 is formed so as to bulge toward the front surface side, and the amount of protrusion outward from the inclined surface extending toward the back surface of the side plate portion 11c is increased. Therefore, according to this configuration, the light emitted from the light emitting element 22 is transmitted through the translucent cover member 24 having diffusivity and diffused, and in particular, the light diffused in the bulging portion of the cover member 24 is emitted. Since the light is applied to the side plate portion 11c and the ceiling surface C, it is possible to increase the brightness of the illumination.

Next, the lighting fixture according to the fourth embodiment of the present invention will be described with reference to FIGS. 22 and 23. The same or corresponding parts as those in the first embodiment are designated by the same reference numerals, and duplicated description will be omitted.

In the present embodiment, the mounting structure of the light source unit 2 is different from that of the first embodiment. As shown in FIG. 22, in the mounting member 21, the other side facing the second side wall 21c extends horizontally through the hole 11h formed in the side wall 11b of the accommodating recess 11, and is on the tip side. A locking wall 21e having a hooking portion 21f is formed therein.

According to such a configuration, as shown in FIG. 23, when the light source portion 2 is attached to the instrument main body 1, the hook portion 21f of the locking wall 21e is hooked on the hole 11h to suspend the light source portion 2. Then, the light source unit 2 can be attached by operating the light source unit 2 so as to rotate in the direction of the arrow shown in the drawing with the hooking unit 21f as a fulcrum.
Therefore, when the light source unit 2 is attached to the instrument main body 1, it is possible to prevent the light source unit 2 from falling and to expect the effect of facilitating the attachment work.

Next, the lighting fixture according to the fifth embodiment of the present invention will be described with reference to FIGS. 24 and 25. The same or corresponding parts as those in the first embodiment are designated by the same reference numerals, and duplicated description will be omitted.

In this embodiment, the amount of protrusion of the light source unit 2 in the front side and the back side can be changed with respect to the instrument main body 1. Thereby, the shading angle can be adjusted.

The locking member 4 is provided with two-stage locking claws 4a1 and 4a2 having different positions in the front side and the back side directions. The light source unit 2 is movable in the front-rear direction, and the mounting member 21 is engaged and held in a predetermined position by the locking claws 4a1 and 4a2.

The state shown in FIG. 24 is a state in which the mounting member 21 is engaged with the locking claw 4a1 on the front surface side, and the light shielding angle is set small. By moving the light source unit 2 to the back surface side from this state and engaging the mounting member 21 with the locking claw 4a2 on the back surface side, the light shielding angle can be set large.

Therefore, according to the present embodiment, the shading angle can be adjusted according to the installation environment of the lighting fixture. The amount of protrusion of the light source unit 2 may be changed not only in two stages but also in multiple stages, and further, it may be arbitrarily changed. This makes it possible to widen the adjustment range of the shading angle.

Next, the lighting fixture according to the sixth embodiment of the present invention will be described with reference to FIG. 26. The same or corresponding parts as those in the first embodiment are designated by the same reference numerals, and duplicated description will be omitted.

In the present embodiment, the light source unit 2 is arranged so as to cover the opening side of the accommodating recess 11, but the cover member 24 of the light source unit 2 is arranged so as to cover the opening side of the accommodating recess 11 so as not to have a gap. It has a structure of

Therefore, it is possible to suppress the formation of an optical dark portion due to the gap between the cover member 24 and the accommodating recess 11 on the opening side of the accommodating recess 11. Further, in this case, since the light source portion 2 is removed from the instrument main body 1 due to maintenance or the like, when the locking member 4 is released, there is no gap on the opening side of the accommodating recess 11, so that the light source portion 2 is formed on the side plate portion 11c. It is an indispensable operation to insert a tool such as a screwdriver into the release hole 11e to release it.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made without departing from the gist of the invention. For example, as the light emitting element, a solid light emitting element such as an LED or an organic EL can be applied.

Further, when the light emitting element is mounted on the substrate, the light emitting element may be mounted by the surface mounting method or the light emitting element may be mounted directly on the substrate. The number of light emitting elements mounted is not particularly limited.
Further, the side plate portion of the instrument body preferably has a function as a reflector, but it does not necessarily have to have this function.

1 ... Instrument body, 2 ... Light source, 3 ... Lighting device, 4 ... Locking member, 4a ...
Locking claws as locking parts, 11 ... accommodating recesses, 11b ... side walls, 11c ... side plate parts,
21 ... mounting member, 21a ... mounting surface, side wall of 21b ..., 22 ... light emitting element (
LED), 23 ... Substrate, 24 ... Cover member, 24a ... Fitting groove as a fitting part

Claims (2)

The top plate portion has a storage recess along the longitudinal direction composed of a top plate portion along the longitudinal direction and side walls formed so as to hang down from both sides of the top plate portion to the front side, and the top plate portion has a storage recess along the longitudinal direction. With the main body in which a pair of mounting holes through which a pair of mounting bolts pass is formed;
With a light source portion whose at least a part is arranged in the recess so as to cover the opening side end of the housing recess;
A lighting device that is arranged in the housing recess so as not to overlap with the mounting bolt penetrating from the mounting hole in the longitudinal direction of the housing recess and supplies electric power to the light emitting element;
A lighting fixture characterized by being equipped with. The lighting fixture according to claim 1, further comprising a terminal block mounted on the main body top plate portion between the pair of mounting holes.

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