JP5419800B2 - lighting equipment - Google Patents

Description

  The present invention relates to a luminaire that is used by being embedded in a construction surface such as a ceiling using, for example, an LED as a light source.

  2. Description of the Related Art Conventionally, a lighting fixture that uses an LED as a light source and is embedded in a ceiling is known (see, for example, Patent Document 1).

As illustrated in FIG. 6, the lighting fixture 100 described in Patent Literature 1 is a downlight that is installed by being inserted into an attachment hole provided in a ceiling. This lighting fixture 100 has a fixture main body 102 having a substantially cylindrical shape and having an opening (opening portion 106) below, and houses a mounting substrate 107 on which a plurality of LEDs 101 are mounted as light sources. A power supply device 103 that supplies power to the LED 101 is provided on the upper part of the instrument main body 102. The power supply device 103 is provided so as to be located in the outer region of the outer periphery of the instrument body via the arm portion 104. A plurality of radiating fins 105 are provided on the upper surface of the instrument main body 102, and the arm unit 104 is coupled substantially horizontally from the radiating fins 105 so as to project the power supply device 103 to an outer region on the outer periphery of the instrument main body. .
The lighting fixture 100 is embedded in the ceiling, exposes the opening 106 of the fixture body 102 from the ceiling, and houses the power supply device 103 and the like on the back side of the ceiling.

Japanese Patent Laying-Open No. 2008-159455 (FIG. 1)

By the way, in the lighting fixture as described above, as shown in FIG. 7, a front panel 109 for protecting the LED 101 is provided in the opening portion 106, a frame 107 is attached in front of the fixture body 102, and an inner surface of the frame 107 is assisted. The reflector 108 may be attached. In such a case, the upper end portion 108A of the auxiliary reflector 108 and the upper end portion 107A of the frame 107 are generally attached by caulking.
However, when the upper end portion 107A of the frame 107 is flat, the front end (upper end portion 108A) of the crimped auxiliary reflector 108 is disposed along the upper end portion 107A of the frame 107. There is a problem in that the corner 108B of 108A abuts against the front panel 109 and the front panel 109 is scratched or cracked.

  The present invention has been made to solve the conventional problems, and the auxiliary reflector can be securely attached to the frame by crimping without the corner of the tip of the auxiliary reflector 108 coming into contact with the front panel. It aims at providing a lighting fixture.

  The lighting fixture of the present invention includes a light source, a fixture main body including the light source and having an opening in the front, a frame attached to the front of the fixture main body and continuing to the opening, and attached to the opening of the fixture main body to reflect light of the light source. A reflective plate, a translucent front panel attached to the front side of the reflective plate, and an auxiliary reflective plate disposed in front of the front panel and attached to the inner surface of the frame, and the front panel is placed on the frame A pedestal is provided, and a gap is provided inside the pedestal.

  Moreover, the lighting fixture of this invention provided the groove | channel in the clearance gap.

  In the present invention, the pedestal for mounting the front panel is provided on the frame attached to the front of the opening of the instrument body including the light source, and the auxiliary reflector is attached to the inner surface. In addition, since there is a gap inside the pedestal, it can be attached to the frame by crimping so that the corner of the tip of the auxiliary reflector does not contact the front panel, and the front panel is less likely to be scratched or cracked It is possible to provide a lighting fixture having

(A) is the top view seen from the upper direction which shows the lighting fixture of 1st Embodiment which concerns on this invention, (B) is the side view seen from B direction in (A) (A) is a cross-sectional view taken along the line II-II in FIG. 1 (A), and (B) is an enlarged view of portion B in (A). (A) is a top view of the state which attached the auxiliary reflector to the frame, (B) is sectional drawing of the BB position in (A). (A) is an exploded perspective view showing a frame and an auxiliary reflector, and (B) is a perspective view of a state before caulking after the auxiliary reflector is incorporated in the frame. (A) is sectional drawing which shows the state before caulking after incorporating an auxiliary reflector in a frame, and (B) is a sectional view showing the state after caulking an auxiliary reflecting plate to a frame. A perspective view of a conventional lighting fixture Sectional drawing which shows the problem in the conventional lighting fixture

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
As shown in FIGS. 1 and 2, the lighting fixture 10 according to the embodiment of the present invention can be used as a downlight that is embedded in a mounting hole 12 provided in a ceiling 11 and illuminates the lower part. The lighting fixture 10 includes a fixture main body 20, an LED light emitting unit 30 that is a light source accommodated in the fixture main body 20, a frame (frame) 40, and a lighting power supply device 60.

  The instrument body 20 is formed in a cylindrical shape having a top plate 21 and a peripheral plate 22 using a hard resin material having insulating properties, and opens (opening 25) forward (downward here). Yes. A plurality of radiating fins 23 protruding upward and a lighting power supply device 60 that supplies power for lighting to the LED light emitting unit 30 are attached to the upper surface of the top plate 21. The lighting power supply device 60 is provided so as to protrude greatly from the top plate 21 of the instrument body 20 and is electrically connected to an external commercial power supply through a power supply terminal block 61 attached to the end.

  As shown in FIG. 2, the LED light emitting unit 30 is attached to the opening 25 of the instrument body 20. The LED light emitting unit 30 includes an LED 31 that is a light source and an LED mounting substrate 32 on which the LED 31 is mounted. The LED mounting substrate 32 is in contact with the lower surface 24 of the instrument body 20 via the heat conductive sheet 33. A reflector 34 is provided below the LED mounting substrate 32.

The reflecting plate 34 is provided with reflecting mirror portions 341 positioned in front of the LEDs 31 corresponding to the number of the LEDs 31, and reflects the light of the LEDs 31 downward. Further, a translucent front panel 35 is provided below the reflecting plate 34.
Therefore, the front panel 35, the reflecting plate 34, the LED mounting substrate 32, and the heat conductive sheet 33 are held between the instrument body 20 and the frame body 40.

  As shown in FIGS. 2 and 3, the frame body 40 is formed in a cylindrical shape having the same outer diameter as the outer diameter of the instrument body 20, and is integrally assembled to the lower side of the instrument body 20. ing. The frame 40 has an upper opening 46 and a lower opening 48, and the LED light emitting unit 30 and the front panel 35 are accommodated in the upper opening 46.

As shown in FIG. 3A, a plurality of (here, for example, three) spring mounting portions 45 are provided on the outer peripheral portion 42 of the frame body 40, and each mounting spring 44 (see FIG. 1) is provided. It is attached.
Therefore, when the lighting fixture 10 is attached to the attachment hole 12 of the ceiling 11, the attachment spring 44 is elastically deformed above the appliance body 20 (in the direction of arrow A in FIG. 1B) and inserted into the attachment hole 12. After that, by releasing the hand, the mounting spring 44 opens in the horizontal direction (in the direction of arrow B in FIG. 1B), so that the ceiling 11 is sandwiched between the lower surface of the mounting spring 44 and the upper surface of the flange 43 described later. The lighting fixture 10 is fixed to the ceiling 11.

  The spring mounting portion 45 has projecting portions 451 (452) projecting outward on both sides along the outer periphery, and the two projecting portions 452 at positions symmetrical with respect to the center of the frame body 40 are the instrument body 20. It is a screw fixing part to be attached to. In addition, an annular flange 43 that is exposed to the lower surface of the ceiling 11 in an attached state is provided around the lower opening 48 at the lower end portion of the frame body 40 so as to project outward.

  On the upper part of the frame body 40, an auxiliary reflector mounting portion 47 for attaching an auxiliary reflector 50 described later is provided so as to protrude inward over the entire circumference. The auxiliary reflector mounting portion 47 has a convex portion 471 at the inner peripheral end, and has a gap 472 that is recessed downward on the outer side of the convex portion 471. Further, at a position corresponding to the protruding portion 451 of the spring mounting portion 45 (see the right side portion in FIG. 3B), a pedestal 473 that contacts and supports the lower surface of the front panel 35 is provided outside the gap 472. The portion corresponding to the gap 472 forms a groove 474. Accordingly, here, the bases 473 are provided at the four protruding portions 451.

As shown in FIG. 4A, the auxiliary reflecting plate 50 attached to the inner surface 41 of the frame body 40 has an overall truncated cone shape made of a thin plate, and has an upper opening 51 and a lower opening 52. The upper opening 51 opens in front of the LED light emitting unit 30 via the front panel 35. The side plate 53 of the auxiliary reflecting plate 50 is formed in a curved surface such as an ellipse or a paraboloid, for example, and reflects light from the LED light emitting unit 30 from the lower opening 52 in a predetermined direction and range. Further, a hooking portion 54 is provided around the lower opening 52 so as to protrude outwardly, and comes into contact with the flange portion 43 from below when assembled from below the frame body 40 (see FIG. 2A). .
A caulking portion 55 for attaching the auxiliary reflecting plate 50 to the frame body 40 is provided at the upper end portion of the auxiliary reflecting plate 50 in a state before caulking. The caulking portion 55 has a cylindrical shape extending straight upward in a state before caulking.

Next, an operation for attaching the auxiliary reflecting plate 50 will be described.
First, as shown in FIG. 4A, the auxiliary reflector 50 is inserted upward from the lower opening 48 of the frame body, and the hook portion 54 provided at the lower end of the auxiliary reflector 50 is inserted into the frame body 40. It is brought into contact with the lower surface of the flange 43. In this state, as shown in FIGS. 4 (B) and 5 (A), the caulking portion 55 of the auxiliary reflecting plate 50 projects straight upward from the inside of the auxiliary reflecting plate mounting portion 47 of the frame body 40. .

Next, the caulking portion 55 projecting upward from the auxiliary reflector mounting portion 47 is folded outward so that the convex portion 471 of the frame body 40 is included and crimped. At this time, at the position corresponding to the protruding portion 451 in the spring mounting portion 45 of the frame body 40, the tip of the crimping portion 55 is pushed into the groove 474 between the convex portion 471 and the base 473.
Thereafter, a screw (not shown) from the instrument body 20 is screwed into the protruding portion 452 of the frame body 40 to couple the instrument body 20 and the frame body 40 together.

As described above, in the lighting fixture 10 according to the embodiment of the present invention described above, the front panel 35 is attached to the frame body 40 attached to the front side of the opening 25 of the fixture body 20 including the LED 31 and the auxiliary reflector 50 attached to the inner surface 41. Since the mounting base 473 is provided, the front panel 35 is supported by the base 473. Thereby, the effect that the front panel 109 is hardly damaged or cracked can be obtained.
Further, since the gap 472 is provided inside the pedestal 473, when the auxiliary reflecting plate 50 is attached to the frame body 40 by caulking, the corner portion 55A at the tip of the caulking portion 55 does not contact the front panel 35. Can be attached to. Thereby, the effect that the front panel 109 is hardly damaged or cracked can be obtained.

  Further, since the groove 474 is provided in the gap 472 provided inside the pedestal 473, the distal end portion 55A of the crimped portion 55 of the crimped auxiliary reflector 50 can be inserted into the groove 474. Thereby, the crimped tip 55A can be prevented from coming off from the gap 472, and the auxiliary reflector 50 can be securely crimped.

  In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 25 Opening part 31 LED (light source)
34 Reflector 35 Front panel 40 Frame (frame)
41 Inner surface 472 Clearance 473 Base 474 Groove 50 Auxiliary reflector

Claims (2)

A light source;
An instrument body including the light source and having an opening in the front;
A frame attached to the front of the instrument body and continuing to the opening;
A reflector that is attached to the opening of the instrument body and reflects the light of the light source;
A translucent front panel attached to the front side of the reflector;
An auxiliary reflector disposed in front of the front panel and attached to the inner surface of the frame;
The lighting fixture which provided the base which mounts the said front panel in the said frame, and provided the clearance gap inside the said base. The lighting fixture according to claim 1,
A lighting fixture provided with a groove in the gap.

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