JP7377444B2 - lighting equipment - Google Patents

Description

Embodiments of the present invention relate to lighting equipment that uses light emitting elements such as LEDs as light sources.

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

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

Embodiments of the present invention aim to provide a lighting fixture that can have a good appearance.

The lighting device of the embodiment has a housing recess along the longitudinal direction, which includes a top plate section along the longitudinal direction, and side walls formed to hang down from both sides of the top plate section toward the front side. , a main body having a locking member and a pair of mounting holes through which a pair of mounting bolts provided on the ceiling structure pass through the top plate portion; a flat mounting surface along the longitudinal direction of the main body; It has a board on which a plurality of light emitting elements are mounted and a mounting member to which the board is attached, and is engaged with the main body by the locking member so as to cover the opening side end of the accommodation recess, and at least a part of the board a light source section disposed in the accommodation recess; a light source section disposed within the accommodation recess so as not to overlap the mounting bolt passing through the mounting hole and the locking member in the longitudinal direction of the accommodation recess; and a lighting device that supplies power to the light emitting element; and the light source section can be removed from the main body by releasing the locking member.

According to the embodiments of the present invention, it is possible to provide a lighting fixture that can have a good appearance.

FIG. 1 is a perspective view showing a lighting fixture according to a first embodiment of the present invention. FIG. 2 is a perspective view of the lighting fixture seen from the back side. It is an exploded perspective view showing the same lighting fixture. 3 is a sectional view taken along line XX in FIG. 2. FIG. FIG. 3 is a sectional view showing how the light source section is attached to the fixture body in the same lighting fixture. It is a perspective view showing the instrument body. FIG. 3 is a side view showing the main body of the instrument. It is a perspective view showing the attachment member. It is a side view which shows the same attachment member. It is a perspective view showing the same cover member. It is a side view which shows the same cover member. It is a perspective view showing the same locking member. It is a side view which shows the same locking member. FIG. 2 is a perspective view of the lighting fixture, seen from the front side with the light source section removed. FIG. 2 is a perspective view showing the lighting fixture from the front side, including the mounting bolt, with the light source section removed. FIG. 2 is an explanatory diagram schematically showing a state in which a plurality of the same lighting fixtures are installed in series. It is a sectional view showing the wiring state of the feed line when a plurality of the same lighting fixtures are installed in series. FIG. 6 is a sectional view showing an operation of releasing a locking member in the same lighting fixture. FIG. 2 is a sectional view showing a lighting fixture according to a second embodiment (Example 1) of the present invention. FIG. 2 is a sectional view showing a lighting fixture according to a second embodiment (Example 2) of the present invention. It is a sectional view showing the lighting fixture concerning the 3rd embodiment of the present invention. It is a sectional view showing the lighting fixture concerning the 4th embodiment of the present invention. Similarly, it is a sectional view showing a lighting fixture according to a fourth embodiment of the present invention. It is a sectional view showing the lighting fixture concerning the 5th embodiment of the present invention. Similarly, it is a sectional view showing a lighting fixture according to a fifth embodiment of the present invention. It is a sectional view showing the lighting fixture concerning the 6th embodiment of the present invention.

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 18. 1 to 5 show lighting equipment, FIGS. 6 and 7 show the equipment main body 1, FIGS. 8 and 9 show the mounting member 21, and FIGS. 10 and 11 show the translucent cover member 24. , FIGS. 12 and 13 show the locking member 4. As shown in FIG. 14 and 15 show a state in which the light source section 2 is removed from the instrument main body 1, FIGS. 16 and 17 show a state in which the feed line 6 is wired, and FIG. 18 shows a state in which the locking member 4 is released. Showing operation.
Note that illustrations of wiring members such as lead wires are omitted, and the same parts in each figure are denoted by the same reference numerals, and redundant explanation will be omitted.

1 to 4 show a direct-ceiling type lighting fixture that is installed on the ceiling surface, and this lighting fixture has an inverted Fuji shape and a horizontally long fixture body. 1, a light source section 2 and a lighting device 3 disposed on the instrument body 1, and a locking member 4 for attaching and holding the light source section 2 to the instrument body 1.

As shown with reference to FIGS. 6 and 7, the device main body 1 is formed by bending a galvanized steel plate, and has a housing recess 11 formed approximately in the center along the longitudinal direction. The accommodation recess 11 is composed of a top plate part 11a and side walls 11b bent from both sides of the top plate part 11a so as to hang down at right angles to the front side. Further, both sides of the opening side of the housing recess 11 in the width direction, that is, both sides of the front side of the side wall 11b are bent into a substantially V-shape when viewed from the side, so that the side plate portion 11c extends along the housing recess 11. It is formed. Therefore, the side plate portion 11c has an inclined surface whose side shape expands toward the rear surface.

The housing recess 11 and the side plate 11c are integrally formed by bending a plate material, and at least their front surfaces are painted white to increase the reflectance of light.
Therefore, the surface of the inclined surface of the side plate portion 11c forms a reflective surface, and the side plate portion 11c functions as a reflective plate.

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

Further, as mainly shown in FIGS. 2 and 6, a pair of attachment holes 11f are formed on the back 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 on the ceiling structure pass through this mounting hole 11f from the outside surface side, so that the appliance main body 1 is installed on the ceiling surface. In addition, around the attachment hole 11f, a reinforcing portion 11g projecting in a dome shape toward the back side is formed in order to reinforce the attachment hole 11f. Furthermore, substantially inverted trapezoidal end plates 12 are attached to both longitudinal ends of the instrument body 1.
The light source section 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, like the instrument body 1, is formed in a horizontally elongated shape, and has a flat mounting surface 21a along the longitudinal direction. , a first side wall 21b rising from both sides of the mounting surface 21a at right angles toward the rear surface, and a second side wall 21b extending horizontally from the first side wall 21b and rising inwardly toward the rear surface at an angle. It has a side wall 21c. Further, on the mounting surface 21a side of the first side wall 21b, a plurality of cut and raised pieces 21d are formed at approximately equal intervals and protrude outward in the width direction.
The mounting member 21 is made of a material with good thermal conductivity, such as a galvanized steel plate or an aluminum plate.

The board 23 is formed in a substantially rectangular shape, and a plurality of boards 23, that is, four boards 23 are lined up in a straight line and are fixed to the mounting surface 21a of the mounting member 21 with screws or the like, so that the back side thereof is tightly attached to the mounting surface 21a. installed to do so. A plurality of light emitting elements 22 are mounted on the front side of this substrate 23.

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

The light emitting element 22 is an LED, and is a surface-mounted LED package. Generally speaking, it is composed of an LED chip disposed in a main body made of ceramics, and a light-transmitting resin for molding such as epoxy resin or silicone resin for sealing the LED chip.

The LED chip is a blue LED chip that emits blue light. A phosphor is mixed into the translucent resin, and in order to emit white light, a yellow phosphor that emits yellow light, which is a complementary color to blue light, is used. There is.

Note that the LED chip may be directly mounted 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 has an elongated semi-cylindrical shape. A pair of fitting grooves 24a serving as a pair of fitting portions are formed along the longitudinal direction on the open end side of the cover member 24. Further, the cover member 24 is frosted and has a function of diffusing the light emitted from the light emitting element 22. Note that a diffusing material may be appropriately mixed into the cover member 24 to provide light diffusivity.

The cover member 24 configured in this manner is attached to the attachment 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 and raised pieces 21d of the mounting member 21 slide and fit into the pair of fitting grooves 24a of the cover member 24, so that the cover member 24 is attached.
As described above, the light source section 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 housing recess 11 of the appliance body 1. The lighting device 3 is configured by accommodating a circuit board and circuit components mounted on this board in a box-shaped case, and is connected to a commercial AC power supply AC, and receives this AC power supply AC to output a DC output. is generated. The lighting device 3 is configured, for example, by connecting a smoothing capacitor between the output terminals of a full-wave rectifier circuit, and connecting a DC voltage conversion circuit and 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 supplies its DC output to the light emitting element 22 to control lighting of the light emitting element 22.

As shown in FIGS. 4 and 14, the lighting device 3 is arranged such that both side walls of its case are in contact with the side walls 11b of the housing recess 11 without any gaps. Therefore, the lighting device 3 plays a role of reinforcing the appliance main body 1. In addition, here, the term "without a gap" does not mean that the side wall of the lighting device 3 and the side wall 11b of the housing recess 11 are in full contact with each other, but is understood in relation to the reinforcing effect, The presence of gaps is acceptable. Furthermore, the lighting device 3 is arranged near the one mounting hole 11f.

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

As shown in FIGS. 12 and 13, the locking member 4 is formed of a spring material such as stainless steel and bent into a substantially U-shape. Furthermore, locking claws 4a serving as locking portions are formed at both ends of the locking member 4 by being bent inward. As shown in FIGS. 2 to 4, a pair of locking members 4 are attached to both ends of the accommodation 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 disposed through the locking claw passage hole 11d of the accommodation recess 11, and is attached to the outside of the accommodation recess 11 by a fixing means such as a screw (see FIG. 3). It is now possible to
As shown in FIG. 5, the light source section 2 is attached to the locking member 4 configured in this way.
That is, the light source section 2 is disposed so as to cover the opening side of the housing recess 11.

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

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

First, for installation, as shown in FIG. Tighten the nut Nt through the washer from the inner side of the top plate portion 11a. Thereby, the reinforcement part 11g on the outer surface side of the top plate part 11a and one end part on the back side of the side plate part 11c are in close contact with the ceiling surface C, and the appliance 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 figure) through which the mounting bolt Bt passes and is tightened by the nut Nt is formed in the vicinity of the part where the lighting device 3 is arranged. This reinforcing effect can suppress deformation of the instrument main body 1 due to the tightening force.

Subsequently, the light source section 2 is attached to the instrument main body 1. In this case, as shown in FIG. 4, a predetermined accommodation space is secured in the accommodation recess 11. Therefore, it is possible to arrange the lighting device 3, the terminal block 5, etc. in the housing recess 11, and by attaching the light source section 2 to the appliance body 1, the lighting device 3, terminal block 5, and wiring related members can be placed as a light source. Since it is covered by the portion 2 and is difficult to see from the outside, it is possible to improve the appearance without providing any special members.

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

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 connect each lighting device continuously with the feed line 6 (power line). In the lighting fixture of this embodiment, as shown in FIG. 15, a feed line passage hole 6a is formed in the side wall 11b of the housing 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 is passed through the space formed by the outside of the housing recess 11 of the instrument body 1 and the side plate portion 11c, as shown in FIG. Can be connected to the next stage lighting equipment. Thereby, the space can be used effectively and the feed lines 6 can be wired in a well-organized manner.

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

As representatively shown in FIG. 4, when power is supplied to the lighting device 3 in the installed state of the lighting equipment, the light emitting elements 22 are energized via the board 23, and each light emitting element 22 lights up. The light emitted from the light emitting element 22 is transmitted through the light-transmitting cover member 24 having diffusive properties, is diffused, and is mainly radiated downward, and some of the light is reflected by the surface of the side plate portion 11c. , the ceiling surface C is also irradiated. This makes it possible to increase the brightness of the illumination. Further, the heat generated from each light emitting element 22 is conducted from the back side of the substrate 23 to the mounting member 21, and is further conducted from the second side wall 21c of the mounting member 21 to the device main body 1, where the heat is radiated. Thereby, the temperature rise of the light emitting element 22 can be suppressed.

As described above, according to the present embodiment, the side plate portion 11c is integrally formed in the device main body 1 having the housing recess 11, so that the number of parts can be reduced and labor savings in construction work can be achieved. can. Further, since a predetermined accommodation space is secured in the accommodation recess 11, it becomes possible to efficiently arrange the lighting device 3.Furthermore, by attaching the light source section 2 to the appliance main body 1, Components such as the lighting device 3 are covered by the light source section 2, and the appearance can be improved.
Moreover, since the lighting device 3 is arranged in the housing recess 11 without any gaps, the appliance main body 1 can be reinforced.

Next, a lighting fixture according to a second embodiment of the present invention will be described with reference to FIGS. 19 and 20. Note that the same or equivalent parts as in the first embodiment are given the same reference numerals, and redundant explanation will be omitted.

(Embodiment 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 housing recess 11. That is, assuming that the horizontal line connecting the opening side ends of the housing recess 11 is the reference line A, the light emitting element 22 is arranged so as to protrude from the reference line A to the front side. As a result, the light emitted from the light emitting element 22 is transmitted through the light-transmitting cover member 24 having diffusive properties, diffused, and radiated downward, and the light is irradiated onto the side plate portion 11c and the ceiling surface C. It becomes possible to increase the amount of brightness, and the feeling of brightness can be increased.

Further, in this embodiment, the cover member 24 is configured to protrude outward from an extension line B of the outline of the inclined surface extending toward the rear surface of the side plate portion 11c. Therefore, the light emitted from the light emitting element 22 is transmitted through the light-transmitting cover member 24 having a diffusive property and is diffused, thereby making it possible to further increase the amount of light irradiated onto the side plate portion 11c and the ceiling surface C. This makes it possible to increase the sense of brightness.

In this embodiment, either a configuration in which the light emitting element 22 is arranged to protrude toward the front side from the reference line A or a configuration in which the cover member 24 protrudes outward from the extension line B is selected. Good too.

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

Next, a lighting fixture according to a third embodiment of the present invention will be described with reference to FIG. 21. Note that the same or equivalent parts as in the first embodiment are given the same reference numerals, and redundant explanation will be omitted.

In this embodiment, the cover member 24 is formed so as to bulge toward the front side, so that the amount of the cover member 24 protruding outward from the inclined surface extending toward the rear side of the side plate portion 11c is increased. Therefore, with this configuration, the light emitted from the light emitting element 22 is transmitted through the light-transmitting cover member 24 and is diffused, and in particular, the light diffused at the bulging portion of the cover member 24 is Since the light is irradiated toward the side panel portion 11c and the ceiling surface C, it is possible to increase the brightness of the illumination.

Next, a lighting fixture according to a fourth embodiment of the present invention will be described with reference to FIGS. 22 and 23. Note that the same or equivalent parts as in the first embodiment are given the same reference numerals, and redundant explanation will be omitted.

The present embodiment shows a form in which the mounting structure of the light source section 2 is different from the first embodiment. As shown in FIG. 22, in the mounting member 21, a hole 11h formed in the side wall 11b of the accommodation recess 11 extends horizontally on the other side opposite to one second side wall 21c, and a hole 11h is formed on the side wall 11b of the accommodation recess 11, and A locking wall 21e having a hook portion 21f is formed on.

According to such a configuration, as shown in FIG. 23, when attaching the light source section 2 to the instrument main body 1, the hook section 21f of the locking wall 21e is hooked into the hole 11h, and the light source section 2 is placed in a suspended state. The light source section 2 can be attached by rotating the light source section 2 in the direction of the arrow shown in the figure using the hook section 21f as a fulcrum.
Therefore, when attaching the light source section 2 to the instrument main body 1, it is possible to prevent the light source section 2 from falling and to make the attachment work easier.

Next, a lighting fixture according to a fifth embodiment of the present invention will be described with reference to FIGS. 24 and 25. Note that the same or equivalent parts as in the first embodiment are given the same reference numerals, and redundant explanation will be omitted.

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

The locking member 4 is provided with two levels of locking claws 4a1 and 4a2 at different positions on the front side and the back side. The light source section 2 is movable in front and back directions, and the mounting member 21 is engaged and held in a predetermined position by locking claws 4a1 and 4a2.

In the state shown in FIG. 24, the mounting member 21 is engaged with the locking claw 4a1 on the front side, and the light shielding angle is set small. From this state, the light source section 2 is moved to the rear side and the attachment member 21 is engaged with the locking claw 4a2 on the rear side, thereby making it possible to set a large light shielding angle.

Therefore, according to this embodiment, it is possible to adjust the shading angle according to the installation environment of the lighting fixture. Note that the amount of protrusion of the light source section 2 may be changed not only in two steps but also in multiple steps, or may be changed arbitrarily. This makes it possible to widen the adjustment range of the light shielding angle.

Next, a lighting fixture according to a sixth embodiment of the present invention will be described with reference to FIG. 26. Note that the same or equivalent parts as in the first embodiment are given the same reference numerals, and redundant explanation will be omitted.

In this embodiment, the light source section 2 is arranged so as to cover the opening side of the accommodation recess 11, but the cover member 24 of the light source section 2 is arranged to cover the opening side of the accommodation recess 11 so that there is no gap. The configuration is as follows.

Therefore, on the opening side of the housing recess 11, it is possible to suppress the occurrence of an optical dark area due to the gap between the cover member 24 and the housing recess 11. Further, in this case, since the light source section 2 is removed from the instrument body 1 for maintenance etc., when releasing the locking member 4, there is no gap on the opening side of the accommodation recess 11, so there is no gap formed in the side plate section 11c. An essential operation is to insert a tool such as a screwdriver into the release hole 11e and release it.

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

Furthermore, when mounting a light emitting element on a substrate, there are cases in which the light emitting element is mounted by a surface mounting method, and there are cases in which the light emitting element is mounted directly on the substrate. The number of light emitting elements mounted is not particularly limited.
Moreover, although it is preferable that the side plate portion of the instrument main body has a function as a reflector, it does not necessarily have to have this function.

DESCRIPTION OF SYMBOLS 1... Appliance main body, 2... Light source part, 3... Lighting device, 4... Locking member, 4a...
A locking claw as a locking portion, 11...accommodating recess, 11b...side wall, 11c...side plate part,
21...Mounting member, 21a...Mounting surface, 21b...side wall, 22...Light emitting element (
LED), 23... Board, 24... Cover member, 24a... Fitting groove as a fitting part

Claims (2)

It has a housing recess along the longitudinal direction that is composed of a top plate section extending in the longitudinal direction and side walls formed to hang down from both sides of the top plate section toward the front side, and the top plate section includes a main body comprising a pair of mounting holes through which a pair of mounting bolts provided on the ceiling structure pass and a locking member ;
The main body has a substrate on which a plurality of light emitting elements are mounted on a flat mounting surface along the longitudinal direction of the main body, and a mounting member to which this board is attached, and the locking member is arranged so as to cover the opening side end of the accommodation recess. a light source part that is engaged with the main body by a member and at least a part of which is disposed in the accommodation recess;
a lighting device that is disposed within the housing recess so as not to overlap in the longitudinal direction of the housing recess with a mounting bolt that penetrates through the mounting hole and the locking member, and that supplies power to the light emitting element;
A lighting fixture, characterized in that the light source section can be removed from the main body by releasing the locking member. The lighting fixture according to claim 1, further comprising a terminal block that is attached to the top plate portion between the pair of attachment holes.

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