JP5557315B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture that is embedded in a ceiling construction surface 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 surface is known (see, for example, Patent Document 1).

As illustrated in FIG. 7, the lighting fixture 100 described in Patent Literature 1 is a downlight that is installed by being inserted into a mounting 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 device 100 is embedded in the ceiling surface, exposes the opening 106 of the instrument body 102 from the ceiling surface, and accommodates the power supply device 103 and the like on the back side of the ceiling surface.

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

By the way, in the lighting fixture (downlight) 100 as described above, a reflective plate that reflects the light of the LED 101 in a predetermined direction and a translucent front panel for protecting the front surface are provided in front of the mounting substrate 107. It is common to provide it. Further, in order to change the color of illumination light of the downlight or change the irradiation range, an optical filter is conventionally provided.
However, such a conventional lighting fixture has a problem that it is difficult to set the optical filter in a desired direction when the optical filter has directionality. In addition, the optical filter may rotate after attachment, and desired illumination may not be obtained.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting fixture capable of positioning a directional optical filter in a predetermined direction with respect to the fixture body.

Lighting device of the invention, light source, and a fixture main body having an open front side contains a light source, Rutotomoni attached to an opening of the instrument body, and a reflection mirror portion provided corresponding to the light source, along the outer edge a vertical wall provided, and a reflecting plate Ru provided with, attached to the front side of the reflector, and a light-transmitting optical filter having the direction of the mounting, with attached to the front side of the optical filter, translucent and the panel portion, possess a front panel comprising an outer peripheral wall, the erected at the outer peripheral edge of the panel portion, and a positioning means for positioning in a predetermined direction the light Science filter to the instrument body, the positioning The means includes a protrusion provided at a predetermined position of the front panel or a protrusion provided at a predetermined position of the reflector, and a locking portion provided on the optical filter and fitted to the protrusion. The protrusion is provided on the front panel. Outer wall From the inner surface, it protrudes inward, or on the outer side of the vertical wall of the reflector, the end of the protrusion is provided so as to protrude forward from the front end surface of the vertical wall. stop portion is shall provided outside the outer peripheral edge of the optical filter.

  In the lighting fixture of the present invention, the protrusions are provided unevenly with respect to the outer periphery of the optical filter.

  Furthermore, the lighting fixture of the present invention is provided with a plurality of protrusions, and each protrusion has a different shape.

  In the present invention, since the positioning means for positioning the optical filter in the predetermined direction with respect to the instrument main body is provided, the optical filter having directionality can be attached in the predetermined direction, and the optical filter is attached after the attachment. It is possible to provide a lighting fixture having an effect of preventing the directionality from being shifted due to rotation or the like.

(A) is the top view which looked at the lighting fixture of 1st Embodiment which concerns on this invention from the upper direction, (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 an exploded perspective view showing the optical filter and the front panel of the first embodiment according to the present invention, (B) is a perspective view of a state in which the optical filter is attached to the front panel. (A) is a disassembled perspective view which shows the optical filter and reflecting plate of 2nd Embodiment concerning this invention, (B) is a perspective view of the state which attached the optical filter to the reflecting plate. (A) is a top view which shows the optical filter and reflecting plate of 3rd Embodiment concerning this invention, (B) is a top view of the state which attached the optical filter to the reflecting plate (A) is a top view which shows the optical filter and reflecting plate of 4th Embodiment concerning this invention, (B) is a top view of the state which attached the optical filter to the reflecting plate A perspective view of a conventional downlight

(First embodiment)
Hereinafter, the lighting fixture of 1st Embodiment of this invention is demonstrated using drawing.
As shown in FIG. 1 and FIG. 2, the luminaire 10 according to the embodiment of the present invention can be used as a downlight that is embedded in a mounting hole provided in the ceiling surface 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 body 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 forward (here, downward). 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 source through a power terminal block 61 attached to the end.

  The frame body 40 is formed in a cylindrical shape having the same outer diameter dimension as the outer diameter dimension of the instrument main body 20, and is integrally assembled to the lower side of the instrument main body 20. The inner surface 41 of the frame 40 is formed in, for example, an ellipse or a parabolic curved surface, and reflects light from the LED light emitting unit 30 in a predetermined direction and range. An annular flange 43 that is exposed to the lower surface of the ceiling surface 11 in an attached state is integrally provided on the lower end surface of the frame body 40. In addition, a plurality of (here, for example, three) attachment springs 44 are attached to the outer peripheral portion 42 of the frame body 40.

  Therefore, when attaching the lighting fixture 10 to the mounting hole of the ceiling surface 11, the mounting spring 44 is elastically deformed upward (in the direction of arrow A in FIG. 1B) of the fixture main body 20 and inserted into the mounting hole. After that, by releasing the mounting spring 44 in the horizontal direction (in the direction of arrow B in FIG. 1B), the ceiling surface 11 is sandwiched between the lower surface of the mounting spring 44 and the upper surface of the flange 43, The lighting fixture 10 is fixed to the ceiling surface 11.

As shown in FIG. 2, 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 342 positioned in front of the LEDs 31 corresponding to the number of LEDs 31 (see FIG. 4, for example, four here), and reflects the light of the LEDs 31 downward. An optical filter 50 and a translucent front panel 35 are provided below the reflecting plate 34. The lower surface of the outer peripheral edge of the front panel 35 is supported by the frame body 40 via the packing 36.
Therefore, the front panel 35, the optical filter 50, 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 through the elastic force of the packing 36.

As shown in FIG. 3, the optical filter 50 has a translucent disk shape, and is provided with a locking portion 51 that is a positioning means from the outer peripheral edge to the outside. Here, the locking portions 51 are provided at three locations, but the number is arbitrary.
The front panel 35 includes a disk-shaped panel portion 351 that transmits light, and an outer peripheral wall 352 that is erected along the outer peripheral edge of the panel portion 351. The inner surface 353 of the outer peripheral wall 352 is provided with a protrusion 354 that is a positioning means that protrudes inward. The projections 354 are fitted in the locking portion 51 of the optical filter 50 and positioned in a predetermined direction, and are provided at three locations here corresponding to the positions of the locking portion 51 of the optical filter 50. . Since the optical filter 50 is housed inside the outer peripheral wall 352 of the front panel 35, the inner diameter of the outer peripheral wall 352 is formed larger than the outer diameter of the optical filter 50 plus the protruding length of the locking portion 51. ing.

  As mentioned above, according to the lighting fixture 10 of 1st Embodiment which concerns on this invention demonstrated, the optical filter 50 attached between the reflecting plate 34 attached to the front opening of the instrument main body 20 which contains LED31, and the front panel 35, Since the positioning means for determining the mounting direction with respect to the instrument main body 20 is provided, the optical filter 50 having directionality can be mounted in a predetermined direction. Further, even after the mounting, it is possible to prevent the optical filter 50 from rotating and the like from being displaced.

  Further, the optical filter 50 having directionality can be obtained by attaching the optical filter 50 so that the protrusion 354 provided on the front panel 35 as the positioning means is fitted to the engaging portion 51 provided on the optical filter 50 as the positioning means. It can be attached in a predetermined direction. Further, even after the mounting, it is possible to prevent the optical filter 50 from rotating and the like from being displaced.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment of this invention is demonstrated using drawing. In addition, suppose that the same code | symbol is attached | subjected to the site | part common to the lighting fixture concerning 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

As shown in FIG. 4, in the lighting fixture of the second embodiment, the positioning means is a protrusion 341 provided on the reflecting plate 34 </ b> B and a locking portion 51 provided on the optical filter 50.
A ring-shaped vertical wall 343 is provided on the outer peripheral edge of the lower surface (the upper surface in FIG. 4A) of the reflecting plate 34B. The outer diameter of the vertical wall 343 is approximately equal to the outer diameter of the optical filter 50, and the lower end surface of the vertical wall 343 contacts the upper surface of the optical filter 50 to support the optical filter 50. At this time, the locking portion 51 of the optical filter 50 protrudes outward from the vertical wall 343 of the reflecting plate 34B.

On the outside of the vertical wall 343 of the reflecting plate 34B, a protrusion 341 that is locked to the locking portion 51 of the optical filter 50 is provided so as to protrude downward (upward in FIG. 4) from the lower end surface of the vertical wall 343. .
Accordingly, the locking portion 51 of the optical filter 50 that is in contact with the lower end surface of the vertical wall 343 is fitted to the protrusion 341 that protrudes downward outside the vertical wall 343, thereby positioning the optical filter 50 in a predetermined direction.

  As mentioned above, according to the lighting fixture of 2nd Embodiment which concerns on this invention demonstrated, attaching the optical filter 50 so that the processus | protrusion 341 provided in the reflecting plate 34B may be fitted to the latching | locking part 51 provided in the optical filter 50. FIG. Thus, the directional optical filter 50 can be attached in a predetermined direction. Further, even after the mounting, it is possible to prevent the optical filter 50 from rotating and the like from being displaced.

(Third embodiment)
Next, the lighting fixture of 3rd Embodiment of this invention is demonstrated using drawing. In addition, suppose that the same code | symbol is attached | subjected to the site | part common to the lighting fixture concerning 1st Embodiment and 2nd Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 5, in the lighting fixture of the third embodiment, the positioning means includes a protrusion 341 provided on the reflecting plate 34C or a protrusion 354 provided on the front panel 35 and a locking part 51 provided on the optical filter 50C. is there. The case where the protrusion 341 is provided on the reflecting plate 34C and the case where the protrusion 354 is provided on the front panel 35 can be considered in the same manner. Therefore, the case where the protrusion 341 is provided on the reflecting plate 34C will be described below.

The locking portion 51 provided in the optical filter 50C is arranged at a different central angle θ with respect to the center CP of the optical filter 50C. For example, three locking portions 51A, 51B, and 51C are arranged at center intervals of θ = 140 °, 120 °, and 100 °. In the reflecting plate 34C, three protrusions 341A, 341B, and 341C are arranged corresponding to the three locking portions 51A, 51B, and 51C of the optical filter 50C.
Thereby, the optical filter 50C can be attached only when the locking portions 51A, 51B, 51C of the optical filter 50C are fitted to the protrusions 341A, 341B, 341C of the reflecting plate 34C, respectively.

  As described above, according to the lighting fixture of the third embodiment of the present invention described above, the protrusions 341A, 341B, 341C of the reflecting plate 34C and the locking portions 51A, 51B, 51C of the optical filter 50C are arranged on the outer periphery of the optical filter 50C. In contrast, they were arranged at non-uniform intervals. Therefore, when the optical filter 50C is attached, the optical filter 50C can be attached only when the engaging portions 51A, 51B, and 51C of the optical filter 50C are fitted to the protrusions 341A, 341B, and 341C of the reflector 34C, respectively. 50C can be attached only in a predetermined direction. Further, even after the mounting, it is possible to prevent the optical filter 50C from rotating and the like from being displaced.

(Fourth embodiment)
Next, the lighting fixture of 4th Embodiment of this invention is demonstrated using drawing. In addition, suppose that the same code | symbol is attached | subjected to the site | part common to the lighting fixture concerning 1st Embodiment thru | or 3rd Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 6, in the lighting fixture of the fourth embodiment, the positioning means includes a projection 341 provided on the reflector 34D or a projection 354 provided on the front panel 35, and a locking portion 51 provided on the optical filter 50D. is there. In addition, since the case where the projection 341 is provided on the reflection plate 34D and the case where the projection 354 is provided on the front panel 35 can be considered similarly, the case where the projection 341 is provided on the reflection plate 34D will be described below.

The three locking portions 51A, 51B, and 51C provided in the optical filter 50D have different shapes. That is, the locking portion 51A is configured with two protrusions 511, and the locking portion 51B and the locking portion 51C are configured with three protrusions 512.
On the other hand, the protrusions 341A, 341B, 341C provided on the reflecting plate 34D have different shapes corresponding to the locking portions 51A, 51B, 51C of the optical filter 50D. That is, the protrusion 341A is configured by a single protrusion so as to be locked to a single recess formed by the two protrusions 511 of the locking portion 51A. Further, the protrusion 341B and the protrusion 341C are configured by two protrusions so as to be locked by two concave portions formed by the three protrusions 512 of the locking portions 51B and 51C, respectively.

In addition, it can comprise so that the shape of the latching | locking part 51B and the latching | locking part 51C may also differ, and it can change it so that all the structures of three latching | locking part 51A, 51B, 51C may differ.
FIG. 6 shows the case where the locking portions 51 provided on the optical filter 50D and the protrusions 341 provided on the reflecting plate 34D are provided at a uniform interval with respect to the outer periphery of the optical filter 50D. As described in the third embodiment, they can be provided at different intervals.

  As described above, according to the lighting fixture of the fourth embodiment of the present invention described above, the three protrusions 341A, 341B, and 341C provided on the reflecting plate 34D have different shapes and the three provided on the optical filter 50D. The shapes of the locking portions 51A, 51B, and 51C are also different shapes corresponding to the protrusions 341. For this reason, it can be attached only when the locking portions 51A, 51B, 51C of the optical filter 50D are fitted to the protrusions 341A, 341B, 341C of the reflecting plate 34D, respectively. Can be made. Further, even after the mounting, it is possible to prevent the optical filter 50D from rotating and the like from being displaced.

In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in each of the above-described embodiments, the locking portion 51 provided in the optical filter 50 (including 50C and 50D, hereinafter omitted) is provided to protrude outward from the outer peripheral surface of the optical filter 50. It is possible to make the outer diameter of the projection plate 341 reach the projection 341 of the reflector 34 and the projection 354 of the front panel 35, and the locking portion 51 may be simply a recess into which the projections 341, 354 are fitted.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 31 LED (light source)
34, 34C, 34D Reflector 341, 341A, 341B, 341C Protrusion (positioning means)
35 Front panel 354 Protrusion (positioning means)
50, 50C, 50D Optical filter 51, 51A, 51B, 51C Locking part (positioning means)

Claims (3)

A light source;
An instrument body including the light source and having an opening in the front;
Rutotomoni attached to the opening of the instrument body, and the light source to the reflecting mirror unit provided in correspondence, and a vertical wall provided along the outer peripheral edge, and a reflector Ru provided with,
A translucent optical filter attached to the front side of the reflector and having a direction of attachment ;
A front panel that is attached to the front side of the optical filter and includes a translucent panel portion, and an outer peripheral wall that stands on the outer periphery of the panel portion ;
Have a, a positioning means for positioning in a predetermined direction relative to the instrument body said optical filter,
The positioning means includes
A protrusion provided at a predetermined position of the front panel, or a protrusion provided at a predetermined position of the reflector;
A locking portion that is provided on the optical filter and fits into the protrusion,
With
The protrusion is provided so as to protrude inward from the inner surface of the outer peripheral wall of the front panel. Alternatively, on the outer side of the vertical wall of the reflector, the end of the protrusion is formed on the vertical wall. Provided to protrude forward from the front end face,
The locking portion, said that provided outside the outer peripheral edge of the optical filter luminaire. The lighting fixture according to claim 1 ,
The lighting fixture in which the protrusion is provided unevenly with respect to the outer periphery of the optical filter. The lighting fixture according to claim 1 ,
A lighting fixture in which a plurality of the protrusions are provided and each protrusion has a different shape.

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