JP2013055014A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of reducing unevenness of light and facilitating attachment/detachment of a cover.SOLUTION: The lighting fixture 10 is provided with a fixture body 11, a fitting part 12 for fitting the fixture body 11 to a ceiling face, a plurality of LED light-emitting parts 14 arranged on a peripheral part 13 of the fixture body 11, a power source part for supplying power to each of the LED light-emitting parts 14, a cover 16 arranged on the peripheral part 13 of the fixture body 11 to cover each of the LED light emitting parts 14, and a lid member 18 for covering detachably a cover 16 side in the fitting part 12 arranged at a central part of the fixture body 11. A surface of the lid member 18 reflects light from the LED light-emitting parts 14.

Description

  The present invention relates to a lighting fixture that irradiates light from an LED light emitting unit downward.

Conventionally, a lighting fixture using an LED unit having an LED light source is known (see, for example, Patent Document 1).
As shown in FIGS. 10 and 11, a lighting fixture 100 described in Patent Document 1 includes a fixture main body 102 installed on a fixture mounting surface 101, a light source body 103 made of a semiconductor light emitting element, a lens body 104, a reflection A body 105 and a globe 106 are included.
The luminaire 100 is provided with an adapter 108 that is detachably installed on a hook ceiling 107 that is installed on a fixture mounting surface 101 such as a ceiling, at a substantially central portion of the fixture main body 102.
The luminaire 100 is installed by being electrically and mechanically supported by the hook ceiling 107 by engaging the adapter 108 with the hook ceiling 107 provided on the fixture mounting surface 101.

In addition, the luminaire 100 includes a lighting device 109 for lighting the light source body 103 in a space around the adapter 108.
The light source body 103 is formed in a straight line shape, and is provided on the outer edge of the opposite side of the instrument body 102.
Further, the reflector 105 has a flat plate shape in which a metal such as an iron plate is coated with white paint, and both ends face the two light source bodies 103 and the light source body 103. The reflector 105 has an inclined portion 110 that is gradually and gradually inclined from the intermediate portion toward the substantially central portion of the instrument main body 102.

In the lighting fixture 100, the light source body 103 is turned on so that the lens body 104 emits light in a substantially parallel direction, that is, toward the inclined portion 110 of the reflector 105, and is further reflected by the reflector 105 to be reflected in the globe. 106 is irradiated from the inner surface side.
Thereby, the lighting fixture 100 illuminates with substantially uniform brightness over the entire room.

Japanese Patent Laying-Open No. 2008-300203 (FIG. 1, paragraphs 0029 and 0030)

However, when the conventional lighting fixture 100 described in Patent Document 1 is attached to the fixture mounting surface 101 by attaching the adapter 108 to the hooking ceiling 107, an opening is provided at a portion corresponding to the adapter 108 of the reflector 105. The lid is attached to.
For this reason, in the conventional lighting device 100 described in Patent Document 1, it is troublesome to attach and detach the lid, and light unevenness may occur due to the lid.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lighting apparatus that can reduce unevenness of light and can easily remove and attach a lid.

  The lighting fixture according to the present invention includes a fixture main body, a mounting portion for mounting the fixture main body on a ceiling surface, a plurality of LED light emitting portions provided in a peripheral portion of the fixture main body, and power to each of the LED light emitting portions. A power supply unit to be supplied, a cover provided in the peripheral part of the instrument body so as to cover each LED light emitting part, and a cover side in the attachment part provided in the central part of the instrument body are attached and detached. A lid member that freely covers, and a surface of the lid member reflects light from the LED light emitting unit.

  In the lighting fixture according to the present invention, each LED light emitting portion is formed in an annular shape, and light intersects with the center portion of the fixture body as a center.

  In the lighting fixture according to the present invention, the lid member protrudes from the fixture main body and has a plane substantially parallel to the cover.

  According to the lighting fixture according to the present invention, it is possible to reduce the unevenness of light and to easily remove and remove the lid.

The disassembled perspective view of the lighting fixture of 1st Embodiment which concerns on this invention The vertical sectional view of the lighting fixture of a 1st embodiment concerning the present invention. The bottom view of the cover member of the lighting fixture of 1st Embodiment which concerns on this invention AA line sectional view of the lid member shown in FIG. BB line sectional view of the lid member shown in FIG. The external appearance perspective view seen from diagonally downward before the attachment of the cover member of the lighting fixture of 1st Embodiment which concerns on this invention The external appearance perspective view seen from diagonally downward after the attachment of the cover member of the lighting fixture of 1st Embodiment which concerns on this invention The vertical sectional view of the lighting fixture of a 2nd embodiment concerning the present invention. The vertical sectional view of the lighting fixture of a 3rd embodiment concerning the present invention. Vertical sectional view of a conventional lighting fixture Bottom view of conventional lighting equipment

Hereinafter, the lighting fixture of several embodiment which concerns on this invention is demonstrated with reference to drawings.
(First embodiment)
As shown in FIG. 1, the lighting fixture 10 of 1st Embodiment which concerns on this invention is the fixture main body 11, the attaching part 12 for attaching the fixture main body 11 to a ceiling surface (refer FIG. 2) 90, and the fixture main body 11. And a plurality of LED light emitting portions 14 provided in the peripheral portion 13 of the.
In addition, the lighting fixture 10 includes a power supply unit (see FIG. 2) 15 that supplies power to each LED light emitting unit 14, and a cover 16 provided on the peripheral part 13 of the fixture body 11 so as to cover each LED light emitting unit 14. Is provided.
And the lighting fixture 10 is provided with the hole 17 for operating the attachment part 12 in the center part of the instrument main body 11, and closes the hole 17 and covers the cover 16 side in the attachment part 12. A lid member 18 is provided for removably covering.

The luminaire 10 includes a remote control light receiving unit 20 having a milky white light receiving element cover 19 provided with a light receiving element (not shown) that receives a remote control signal on the side of the hole 17, and a remote control transmitter (not shown). A channel setting unit 21 for performing model setting is attached.
In the lighting fixture 10, each LED light emitting unit 14 has a lens 22. The lens 22 is a wide-angle lens that distributes light components at the center of the cover 16.

The instrument body 11 is formed in a disc shape using a thin die-cast member or the like. A plurality of cover engaging portions 23 for rotating the cover 16 are attached to the outer edge portion on the floor surface side of the instrument main body 11.
As for the instrument main body 11, the floor surface side functions as a reflective surface.

The LED light emission part 14 has the circular arc-shaped LED board 24 isolate | separated so that a periphery may be divided into four.
The LED light emitting unit 14 includes a plurality of LEDs 25 sealed on the inner peripheral side on the floor surface side of the LED substrate 24 and a plurality of LEDs 26 sealed on the outer peripheral side on the floor surface side of the LED substrate 24.

The LED board 24 includes a printed circuit (not shown) that is electrically connected to the inner peripheral LED 25 and a printed circuit (not shown) that is electrically connected to the outer peripheral LED 26, and these printed circuits are connected to the power supply unit 15. Are electrically connected independently.
It should be noted that a plurality of LEDs 25 on the inner peripheral side and a plurality of LEDs 26 on the outer peripheral side can have different characteristics such as color temperature.

The attachment portion 12 is an attachment adapter that is mechanically and electrically connected to a hooking ceiling (see FIG. 2) 91 installed on the ceiling surface 90, and is electrically connected to the power supply portion 15.
The power supply unit 15 incorporates an electrical component such as an inverter for converting the commercial AC current fed from the hook ceiling 91 into a DC power supply to the printed circuit of the LED board 24 and supplying it.
The cover 16 is made of, for example, milky white resin and is fixed to the cover engaging portion 23 of the instrument main body 11.

The lens 22 is made of a resin having translucency, and has an annular shape having an inner peripheral lens portion 27 that covers the plurality of LEDs 25 on the inner peripheral side and an outer peripheral lens portion 28 that covers the plurality of LEDs 26 on the outer peripheral side. Is formed.
The lens 22 has a recess 29 between the inner peripheral lens portion 27 and the outer peripheral lens portion 28.
The lens 22 constitutes the LED light emitting unit 14 together with the inner peripheral LED 25 and the outer peripheral LED 26.

The hole 17 is formed in an oval shape having an inner diameter that is sufficiently larger than the outer diameter of the mounting portion 12.
The lid member 18 has an oval outer shape having an outer diameter dimension larger than the inner diameter dimension of the hole portion 17, and is secured to the hole portion 17 via an engagement portion (see FIG. 5). The hole 17 is detachably attached.
Therefore, the lid member 18 can be operated to operate the attachment portion 12 disposed inside the hole portion 17 by being removed.

As shown in FIG. 2, in the lighting fixture 10, the power supply portion 15 is disposed on the lower surface outside the hole portion 17 of the fixture body 11.
In the LED light emitting unit 14, the inner peripheral LED 25 and the outer peripheral LED 26 are arranged in a ring shape, so that the light component emitted by lighting intersects with the contrast centering on the hole 17 of the instrument body 11 through the lens 22. To do.
Accordingly, it is possible to irradiate the light component emitted from the LED light emitting unit 14 arranged in an annular shape through the lens 22 with a uniform light amount.

Next, the structure of the lid member 18 will be described in detail.
As shown in FIG. 3, the lid member 18 is formed by injection molding of a resin material, and includes a flat surface 31 disposed at the bottom and an inclined surface 32 connected to the periphery of the flat surface 31.
The lid member 18 includes a pair of long sides 33 connected to the long side portion of the plane 31 via the inclined surface 32, and a pair of arc sides 34 connected to the short side portion of the plane 31 via the inclined surface 32. , And a flange 35 connected to the pair of long sides 33 and the pair of arc sides 34.
The lid member 18 has a reflecting surface 36 on the surfaces of the flat surface 31, the slope 32, the pair of long sides 33, the pair of arc sides 34, and the flange 35.

Therefore, the cover member 18 can reflect the light component emitted by the lighting of the LED light emitting unit 14 by the reflection surface 36 so that the cover 16 cannot be shaded.
The lid member 18 is tapered toward the cover 16 as a whole because the flat surface 31 is connected to the long side 33 and the arc side 34 via the inclined surface 32 in a state where the lid member 18 is attached to the hole 17 of the instrument body 11. Formed.
Therefore, the lid member 18 can prevent the progress of the light component emitted by the lighting of the LED light emitting unit 14.
The lid member 18 has a pair of marks 37 on the flange 35 corresponding to the position of the engaging portion 30.

As shown in FIG. 4, the lid member 18 has an inclined surface 32 between the flat surface 31 and the pair of long sides 33 inclined at an angle θ <b> 1 with respect to the flat surface 31.
As shown in FIG. 5, in the lid member 18, the inclined surface 32 between the plane 31 and the pair of arc sides 34 is inclined with respect to the plane 31 at an angle θ <b> 1.
The lid member 18 has a pair of engaging portions 30 formed at positions corresponding to the center portions of the pair of arc sides 34 in the flange 35.

When the lid member 18 is attached to the hole 17 of the instrument main body 11, the lid member 18 protrudes toward the floor surface, and the flat surface 31 is disposed substantially parallel to the cover 16.
Accordingly, it is possible to prevent the light component from proceeding toward the cover 16 from traveling from the LED light emitting unit 14.

Next, the detailed structure of the hole 17 of the instrument body 11 and the attachment procedure of the lid member 18 will be described.
As shown in FIG. 6, a pair of engaging portion receivers 38 for engaging the pair of engaging portions 30 of the lid member 18 are formed on the inner peripheral portion of the hole portion 17 of the instrument main body 11.

In attaching the lid member 18, first, the lid member 18 with the engaging portion 30 facing upward is disposed below the hole portion 17 of the instrument main body 11.
Then, the pair of engaging portions 30 of the lid member 18 are inserted into the pair of engaging portion receivers 38 while matching the pair of marks 37 of the lid member 18 with the center of the oval arc portion of the hole 17. .
At this time, the pair of engaging portions 30 are merely inserted into the pair of engaging portion receivers 38, and are not engaged.

Next, as shown in FIG. 7, in a state where the pair of engaging portions 30 of the lid member 18 are inserted into the pair of engaging portion receivers 38, the lid member 18 is rotated in the clockwise direction in FIG. Let
When the lid member 18 is rotated in the clockwise direction in FIG. 3, the pair of engaging portions 30 of the lid member 18 are engaged with the pair of engaging portion receivers 38.
As a result, the lid member 18 is attached to the instrument body 11 with the hole 17 closed.

Here, the channel setting unit 21 and the remote control light receiving unit 20 are disposed in the vicinity of the side surface of the one long side 33 in the plan view of the lid member 18.
And the protrusion dimension from the instrument main body 11 of the light receiving element cover 19 of the remote control light-receiving part 20 is set lower than the height dimension of the long side 33 in the lid member 18.
Therefore, the light component emitted by the lighting of the LED light emitting unit 14 cannot be shaded, and the influence of the light component emitted by the lighting of the LED light emitting unit 14 on the remote control light receiving unit 20 can be prevented.

Next, when removing the lid member 18, the lid member 18 is rotated, for example, in the counterclockwise direction in FIG.
When the lid member 18 is rotated in the counterclockwise direction in FIG. 3, the pair of engaging portions 30 of the lid member 18 is disengaged from the pair of engaging portion receivers 38, and the lid member 18 is removed from the hole portion 17. Removed.
Accordingly, since the lid member 18 can be attached to and detached from the hole 17 with one touch, it can be easily attached and detached.

Next, the optical characteristics of the lighting fixture 10 will be described.
Returning to FIG. 2, when power is supplied from the hook ceiling 91 to the power supply unit 15, the light components emitted from the inner LED 25 and the outer LED 26 of the LED light emitting unit 14 pass through the lens 22 in the hole of the instrument body 11. It intersects the control centering on part 17.
At this time, the light component toward the lid member 18 is reflected by the reflecting surface 36 of the lid member 18 on the flat surface 31, the slope 32, the pair of long sides 33, the pair of arc sides 34, and the flange 35. Is done.
Therefore, the cover 16 does not shadow the cover 16.

As mentioned above, according to the lighting fixture 10 of 1st Embodiment which concerns on this invention demonstrated by the reflective surface 36 of the cover member 18, the light component light-emitted by lighting of the LED light emission part 14 is reflected, and the cover 16 is shaded. Since it is not made, light unevenness can be reduced.
Further, according to the lighting device 10, since the lid member 18 only stops the engagement portion 30 from rotating to the engagement portion receiver 38, the attachment and detachment to the hole portion 17 can be performed with a single touch, so that attachment / detachment can be facilitated. .

  According to the luminaire 10, it is possible to irradiate the light component emitted from the LED light emitting unit 14 arranged in an annular shape through the lens 22 with a uniform light amount.

  According to the luminaire 10, it is possible to prevent the light component from proceeding toward the cover 16 from proceeding with the light component.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
In the following embodiments, components that are the same as those in the first embodiment described above or components that are functionally similar are denoted by the same or corresponding reference numerals in the drawings, and the description thereof is simplified or omitted. To do.

As shown in FIG. 8, the lighting fixture 40 of 2nd Embodiment which concerns on this invention has the convex surface 42 convex toward the floor surface connected to a pair of long side 33 and a pair of circular arc side 34, and the reflective surface 43 is shown. A lid member 41 to be formed is provided on the cover 16 side of the attachment portion 12.
In the luminaire 40, light components emitted from the inner peripheral LED 25 and the outer peripheral LED 26 of the LED light emitting portion 14 intersect with the reference centering on the hole 17 of the fixture main body 11 through the lens 22.
At this time, the light component directed toward the convex surface 42 among the light components directed toward the lid member 41 is positively reflected by the reflection surface 43 of the convex surface 42.

  According to the luminaire 40 of the second embodiment, the light component directed toward the convex surface 42 out of the light components directed toward the lid member 41 is positively reflected by the reflective surface 43 of the convex surface 42. It is possible to irradiate efficiently by reducing the drop in the amount of light.

(Third embodiment)
Next, the lighting fixture of 3rd Embodiment which concerns on this invention is demonstrated.
As shown in FIG. 9, the lighting fixture 50 according to the third embodiment of the present invention has a concave concave surface 52 connected to a pair of long sides 33 and a pair of arc sides 34 toward the floor surface, and the center of the concave surface 52. The cover member 51 is provided with a convex surface 53 connected to the floor surface to form a reflective surface 54.
In the luminaire 50, the light components emitted from the inner peripheral LED 25 and the outer peripheral LED 26 of the LED light emitting section 14 intersect with the contrast centering on the hole 17 of the instrument main body 11 through the lens 22.
At this time, the light component toward the concave surface 52 among the light components toward the lid member 51 is collected by the reflecting surface 54 of the concave surface 52 and proceeds toward the convex surface 53 among the light components toward the lid member 51. The light component is positively reflected by the reflecting surface 54 of the convex surface 53.

  According to the lighting apparatus 50 of the third embodiment, the light component toward the concave surface 52 of the lid member 51 is collected and the light component toward the convex surface 53 of the lid member 51 is positively reflected. It is possible to efficiently irradiate by reducing the fall of the light amount in the member 51.

  In addition, in the lighting fixture of this invention, LED light emission part, an attaching part, a power supply part, a cover, etc. are not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 10,40,50 Lighting fixture 11 Appliance main body 12 Attachment part 13 Peripheral part 14 LED light emission part 15 Power supply part 16 Cover 18,41,51 Cover member 31 Plane

Claims (3)

An instrument body;
An attachment portion for attaching the appliance body to the ceiling surface;
A plurality of LED light emitting portions provided in the peripheral portion of the instrument body;
A power supply unit for supplying power to each of the LED light emitting units;
A cover provided on the peripheral part of the instrument body so as to cover each LED light emitting part;
A lid member that detachably covers the cover side of the mounting portion provided in the central portion of the instrument body,
The lighting fixture in which the surface of the said lid member reflects the light from the said LED light emission part. The lighting fixture according to claim 1,
Each LED light emission part is formed in cyclic | annular form, Light is crossed on the contrast centering | focusing on the said center part of the said instrument main body. The lighting fixture according to claim 1 or 2,
A lighting fixture in which the lid member protrudes from the fixture body and has a plane substantially parallel to the cover.

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