JP2012226913A - Illumination apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illumination apparatus, for which components of a conventional illumination apparatus for illuminating immediately below are diverted as much as possible, and which is able to illuminate a wall surface orthogonal to a ceiling surface as an attached part.SOLUTION: A frame body 20 is attached to an attached body 11, and the frame body 20 supports a lighting fixture 30. The lighting fixture 30 has an LED mounting substrate 34 mounted with an LED 341 at the front in the illuminating direction and has a heat radiating fin 311 at the back in the illuminating direction. Further, at the front side of the frame body 20, an extended part 24 is provided which has an opening 25 in an illuminating direction inclined to the attached part 11, and to which a tip part of the lighting fixture 30 mounted with the LED mounting substrate 34 and the like can be attached, so that the lighting fixture 30 used in a conventional illumination apparatus can be attached to the extended part 24, thereby enabling cost reduction.

Description

  The present invention relates to a lighting apparatus suitable for being attached to a ceiling surface in an embedded manner to illuminate a lower part.

Conventionally, a luminaire such as a downlight has been used to embed and attach to the ceiling surface to illuminate the lower part (see, for example, Patent Document 1).
As shown in FIG. 6, the lighting fixture 100 includes a thermally conductive cylindrical main body 101. A decorative frame 102 is provided around the opening at the tip of the cylindrical main body 101, and a substrate 103 on which an LED as a light emitting element is mounted is attached inside the cylindrical main body 101.
Further, inside the cylindrical main body 101, a power supply unit 104 including a lighting circuit device, a reflector 105 that reflects light emitted from the LED of the substrate 103 in a predetermined direction, and a front of the reflector 105 are disposed. The transparent cover 106 is provided. A terminal block 107 is disposed on the outer surface of the cylindrical main body 101, and a pair of attachment leaf springs 108 are mounted on the decorative frame 102.

  Therefore, the luminaire 100 embeds the cylindrical main body 101 in the embedding hole provided in the ceiling surface which is the mounted portion, and sandwiches the ceiling surface between the decorative frame 102 and the mounting leaf spring 108, A lighting fixture 100 is attached.

JP 2010-003677 A (FIG. 1)

In the conventional lighting apparatus as described above, the substrate 103 on which the LED is mounted and the reflector 105 are provided in parallel with the ceiling surface, and the LED is directed directly below the ceiling surface and illuminates the lower part. It is.
Therefore, when illuminating a wall surface orthogonal to the ceiling surface, it is common to individually design the reflector so that the reflected light is directed to the wall surface, and it is possible to divert components such as a conventional reflector. There was a problem that it could not be done and increased the cost.

  The present invention has been made in order to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus that can reduce costs by diverting parts of a conventional lighting apparatus that illuminates directly below as much as possible.

  The lighting fixture of the present invention includes a lamp having an LED mounting substrate on which LEDs are mounted in a front portion and a heat radiation fin in a rear portion, and a frame body that is attached to a mounted portion and supports the lamp. On the front side of the frame, there is an opening that is inclined with respect to the attached portion, and an extension that can be attached by inclining the tip of the lamp on which the LED mounting substrate is provided with respect to the attached portion A part is provided.

  The present invention has an opening in the illumination direction inclined with respect to the attachment portion on the front side of the frame body, and the tip end portion of the lamp provided with the LED mounting board can be attached to the attachment portion with an inclination. Since the extended portion is provided, the lamp used in the conventional lighting fixture can be attached to the extended portion, and a lighting fixture having an effect that the cost can be reduced can be provided.

Sectional drawing which shows the state which attaches the lighting fixture of embodiment which concerns on this invention to a ceiling surface, and illuminates a wall surface The disassembled perspective view of the lighting fixture of embodiment which concerns on this invention (A) is the side view and fragmentary sectional view of the lighting fixture of embodiment which concerns on this invention, (B) is an enlarged view of B part in (A). (A) is a side view of the frame viewed from the A direction in (B), and (B) is a cross-sectional view of the position BB in (A). Sectional drawing which shows the optical path of the light irradiated to the opposite side to a wall surface among the light emitted from LED A perspective view of a conventional lighting fixture

Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIG. 1, the luminaire 10 according to the embodiment of the present invention is embedded in a mounting opening 12 provided in a ceiling surface 11 that is a mounted portion, and has a wall surface 13 orthogonal to the ceiling surface 11. Illuminate.

As shown in FIGS. 1 and 2, the lighting fixture 10 includes a frame body 20 attached to the ceiling surface 11 and a lamp 30 supported by the frame body 20.
The frame body 20 includes a cylindrical frame body 21 that is fitted into the mounting opening 12 of the ceiling surface 11, and has a flange 22 that abuts the ceiling surface 11 at the lower end of the frame body 21. A plurality (for example, three) of attachment springs 23 for attaching the frame 20 to the ceiling surface 11 are provided on the outer surface of the frame body 21 at a predetermined interval. The attachment spring 23 is always urged downward (in the direction of arrow A in FIG. 2).
Therefore, the frame body 20 is fixed to the ceiling surface 11 by sandwiching the ceiling surface 11 between the flange portion 22 and the attachment spring 23.

An extending portion 24 having an opening 25 inclined with respect to the ceiling surface 11 is integrally provided on the front side (lower side in FIG. 1) of the frame body 21. The extending portion 24 can have a shape imitating a part of a sphere. Alternatively, a cylindrical shape can be used.
In addition, a space in which the distal end portion (lower portion) of the lamp 30 can be accommodated is provided in the extended portion 24.

The lamp 30 has a lamp main body 31 having a large number of heat radiation fins 311 in the vertical direction, and a lighting power supply device 32 is attached to the rear part (upper part) of the lamp main body 31. The front surface (lower surface) of the lamp 30 has a substantially circular shape, and the LED mounting substrate 34 on which the LEDs 341 are mounted is attached inside through the heat conductive sheet 33.
Therefore, the heat generated by the LED 341 is transmitted from the LED mounting substrate 34 to the heat conductive sheet 33 and is transmitted to the heat radiating fins 31 to be radiated.

An opening 351 corresponding to the LED 341 is provided on the front surface (lower surface) of the LED mounting substrate 34, and a reflection plate 35 that reflects the light of the LED 341 forward (downward) is attached. Further, a front panel 36 is provided on the front side of the reflecting plate 35 and is attached to the frame body 20 via a packing 37.
The lamp 30 can be the same as a downlight or the like that has been used to illuminate directly below, and is attached to the frame body 21 at an angle, as will be described later.

As shown in FIGS. 3 and 4, an extending portion 24 having an opening 25 inclined with respect to the ceiling surface 11 is provided on the front side of the frame body 20. Inside the extended portion 24, the tip of the lamp 30 to which components such as the LED mounting substrate 34, the reflector 35, and the front panel 36 are attached can be attached while being inclined with respect to the ceiling surface 11. ing.
For this reason, as the lamp 30, what is conventionally used for the lighting fixture which illuminates right below can be used, it can be made to incline with respect to the frame main body 21, and can be attached in the extension direction of the extension part 24. FIG.

In addition, as for the protrusion length of the extension part 24, it is desirable for the protrusion length H1 on the opposite side to the ceiling surface 11 to be larger than the protrusion length H2 on the ceiling surface 11 side. That is, it is desirable to set so that H1> H2.
Thereby, the wall surface 13 can be illuminated efficiently.

Therefore, as shown in FIG. 5, out of the light emitted from the LED 341 (see FIG. 2) mounted on the LED mounting substrate 34, the light LB1 heading in the direction far from the wall surface 13 as the irradiated surface is projected length. The length H1 is applied to the inner surface 241 of the extended portion 24. The light LB1 is reflected by the inner surface of the extending portion 24 and travels toward the wall surface 13 (light LB2).
Of the light emitted from the LED 341, the light irradiated straight and the light irradiated on the wall surface 13 side are directly irradiated on the wall surface 13.

As mentioned above, according to the lighting fixture 10 of embodiment which concerns on this invention demonstrated, the frame 20 is attached to the attachment opening 12 of the ceiling surface 11, and the frame 20 supports the lamp 30. FIG. The lamp 30 includes the LED mounting substrate 34 on which the LEDs 341 are mounted in the front part in the illumination direction, and the heat radiation fins 311 in the rear part in the illumination direction.
The front end portion of the lamp 30 having the opening 25 in the illumination direction inclined with respect to the ceiling surface 11 on the front side of the frame body 20 and provided with components such as the LED mounting substrate 34 is disposed with respect to the ceiling surface 11. An extending portion 24 that can be attached in an inclined state is provided. For this reason, it is possible to attach components such as the lamp 30, that is, the LED mounting board 34, the reflecting plate 35, the front panel 36, and the like used in the conventional lighting fixture that illuminates directly below, to reduce the cost. be able to.

In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, the center axis of the lamp 30 attached to the extending portion 24 is illustrated and described in the case where it is not orthogonal to the opening 25 of the extending portion 24. However, the direction in which the lamp 30 is orthogonal to the opening 25 is illustrated. It can also be attached to.

10 Lighting equipment 11 Ceiling surface (attached part)
20 Frame body 24 Extension part 25 Opening 30 Lamp 311 Radiation fin 34 LED mounting board 341 LED
H1 Projection length on the opposite side to the ceiling surface (projection length on the opposite side to the mounted part)
H2 Projection length on the ceiling side (projection length on the mounted part side)

Claims (1)

A lamp having an LED mounting substrate with LEDs mounted on the front and a heat dissipating fin on the rear;
A frame that is attached to the attachment portion and supports the lamp, and
The front of the frame has an opening that is inclined with respect to the attached portion, and an extension that can be attached by inclining the tip of the lamp on which the LED mounting substrate is provided with respect to the attached portion. A luminaire with a section.

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