JP2012133974A - lighting equipment - Google Patents

Abstract

The present invention provides a lighting device that can illuminate a room according to a life scene or preference.
A first LED unit (31) disposed on a mounting surface portion (23) substantially parallel to a construction surface (11) in an instrument body (20) illuminates a room by irradiating light directly below. In addition, by switching the second LED unit 32 and the third LED unit 33 that are arranged outside the first LED unit 31 and emit light to the side, simultaneously or selectively by the lighting switching means 40, The entire room can be illuminated and matched to the effects of the room and the user's preference.
[Selection] Figure 5

Description

  The present invention relates to a lighting fixture that uses an LED as a light source and is attached to a ceiling surface or the like to illuminate downward.

2. Description of the Related Art Conventionally, a ceiling light that is a lighting fixture that is attached to a ceiling surface using an LED as a light source is known (see, for example, Patent Document 1).
As shown in FIG. 7, a lighting fixture 100 described in Patent Literature 1 is attached to a ceiling surface 101 to illuminate a lower portion, and has a trapezoidal fixture main body 102 attached to the ceiling surface 101.
That is, the instrument main body 102 has an attachment surface portion 103 parallel to the ceiling surface 101 and an inclined surface portion 104 that inclines toward the ceiling surface 101 from the attachment surface portion 103 toward the outside. A plurality of LEDs 105 are attached to the attachment surface portion 103 and the inclined surface portion 104 as light sources, respectively.

Utility Model Registration No. 3156721 (Fig. 6)

  However, in the conventional lighting fixture, since the plurality of LEDs 105 are arranged on the mounting surface portion 103 and the inclined surface portion 104 of the fixture main body 102, the irradiation range can be expanded, but a part of the floor surface of the room is illuminated. There is a problem that it is difficult to illuminate the lighting according to the life scene and preference such as lighting the wall brightly.

  The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide a lighting apparatus that can illuminate a room according to a life scene or a preference.

  The illuminating device of the present invention has a mounting surface portion that is substantially parallel to the construction surface and a side of the mounting body that is provided outside the mounting surface portion, and is disposed on the mounting surface portion to irradiate illumination light directly below. A first LED unit, a second LED unit disposed outside the first LED unit and irradiating illumination light to a side, and a third LED unit irradiating to a side different from the second LED unit. And a lighting switching means for lighting at least the second LED unit and the third LED unit simultaneously or selectively.

  Moreover, the lighting fixture of this invention provided the inclined surface which inclined so that it might approach the said construction surface toward the outer side from the said mounting surface part in the said side part, and provided the said 2nd LED unit in the said inclined surface. It is.

  Moreover, the lighting fixture of this invention is an inclination angle of the said inclined surface which is 0 degree to 90 degree | times with respect to the said construction surface.

  Furthermore, in the lighting fixture of the present invention, the second LED unit is disposed on one of the opposed inclined surfaces, and the third LED unit is disposed on the other.

  The present invention provides a second LED unit and a second LED unit that are disposed outside the first LED unit that is disposed on the mounting surface portion substantially parallel to the construction surface in the instrument main body and that irradiates light laterally. By switching the LED units 3 at the same time or selectively by the lighting switching means, it is possible to illuminate the entire room, and it is possible to provide an illuminating device having the effect of producing the room and the user's preference. .

The perspective view which looked at the lighting fixture of embodiment which concerns on this invention from the downward direction Bottom view seen from direction II in Fig. 1 Side view seen from direction III in Fig. 1 Exploded perspective view of LED unit The block diagram which shows the control system in the lighting fixture of embodiment which concerns on this invention (A)-(E) is a chart which shows a light distribution pattern and the LED unit used at this time (A) is a perspective view of the conventional lighting fixture, (B) is sectional drawing of the BB position in (A).

Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIG. 1, the lighting fixture 10 of embodiment which concerns on this invention is attached to the ceiling surface 11 etc. which are construction surfaces, and mainly illuminates below, for example, square shape attached to the ceiling surface 11 The instrument body 20 is provided.
In addition, in FIG. 1, the state which removed the translucent cover 26 (refer FIG. 3) attached to the front (downward) of the instrument main body 20 is shown.
Further, a hooking ceiling 12 (see FIG. 3) for attaching the lighting fixture 10 is attached to the ceiling surface 11.

As shown in FIGS. 2 and 3, the instrument main body 20 includes a base plate 21 having a square shape, for example, attached to the ceiling surface 11. At the center of the base plate 21, an attachment fitting 25 for attaching the lighting fixture 10 by being attached to the hook ceiling 12 of the ceiling surface 11 is provided through the base plate 21.
Further, on the lower surface 211 of the base plate 21, there is an LED unit mounting base 22 having a trapezoidal cross section parallel to the end sides 212 and 213 except for the sections 212A and 213A each having a constant width from the two opposite end sides 212 and 213. It is attached.

The mounting base 22 has a mounting surface portion 23 parallel to the base plate 21 and side portions 24 on the outside of the mounting surface portion 23, that is, in four directions. A part of the side portion 24 (here, for example, an end portion orthogonal to the end surface 231 of the mounting base 22) is provided between the end portion of the mounting surface portion 23 and the base plate 21, and approaches the base plate 21 toward the outside. An inclined surface 241 inclined in the direction is provided.
An inclination angle θ (see FIG. 3) of the inclined surface 241 with respect to the ceiling surface 11, that is, the attachment surface portion 23 is 0 degree <θ <90 degrees.

In addition, in order to avoid interference with the attachment metal fitting 25 provided in the center of the base plate 21, the attachment surface part 23 may be divided into two as shown in FIG.
In addition, a power supply device 27 that supplies lighting power to the LED unit 30 and a control unit 41 that controls the power supply device 27 are accommodated in the mounting surface portion 23.

The LED unit 30 is attached to the attachment surface portion 23 and the side portion 24. For example, two first LED units 31 are arranged in parallel on both sides of the mounting surface portion 23 with the central mounting bracket 25 interposed therebetween.
A second LED unit 32 is disposed outside the first LED unit 31 in the mounting surface portion 23. In addition, the second LED unit 32 or the third LED unit 33 is disposed on the inclined surface 241 in the side portion 24, and irradiates light downward or outward.

Further, the second LED units 32 are attached to the side portions 24 on both outer sides of the pair of end surfaces 231 of the attachment surface portion 23 between the end surface 231 and the lower surface of the base plate 21, respectively.
The mounting angle of the second LED unit 32 can be adjusted.

  In addition, although the case where only the cross section along the opposite end sides 212 and 213 of the base plate 21 is trapezoidal as the LED unit mounting base 22 is shown here, the direction orthogonal to the end sides 212 and 213 is also shown. An inclined surface may be provided to form a truncated pyramid shape that is pointed downward.

  As shown in FIG. 3, the above-described LED unit 30 (which is a general term for the first LED unit 31, the second LED unit 32, and the third LED unit 33) is accommodated in the lower surface 211 of the base plate 21. The translucent cover 26 is detachably attached. The translucent cover 26 has a quadrangular frustum shape that is pointed downward.

As shown in FIG. 4, the LED unit 30 has a rectangular shape as a whole, and has a rectangular main body 34 in the lowermost layer (the uppermost portion in FIG. 4). The main body 34 is made of acrylic in order to improve heat dissipation.
Thereby, since the heat | fever which LED chip 351 emitted can be thermally radiated efficiently, the lifetime of LED unit 30 can be extended significantly.

An LED substrate 35 on which a plurality of LED chips 351 are mounted is attached on the main body 34 (lower in FIG. 4). In at least the LED units 32 and 33 disposed on the side portion 24, the LED chips 351 are arranged on a straight line on the LED substrate 35.
A translucent cover 36 made of a flame-retardant resin that covers the LED chip 351 and the LED substrate 35 is disposed on the main body 34 (lower in FIG. 4).

Then, in order to attach the LED substrate 35 and the cover 36 to the main body 34, an overall frame-shaped under cover 37 is attached to the main body 34. The under cover 37 is formed of ABS, is attached to the main body 34 without using fastening means such as screws, and sandwiches the LED substrate 35 and the cover 36 between the under cover 37 and the main body 34. Therefore, when the LED unit 30 is viewed from below, the fastening means such as screws that assemble the LED unit 30 cannot be seen.
Note that the LED unit 30 as described above is the same LED unit as the first LED unit 31, the second LED unit 32 on the mounting surface portion 23, the second LED unit 32 on the side portion 24, and the third LED unit 33. 30 can be used.

As shown in FIG. 5, the power supply device 27 that supplies lighting power to the LED unit 30 is connected to a control unit 41 that constitutes the lighting switching means 40, and the LED unit 30 is lit by the control of the control unit 41. The lighting switching unit 40 lights at least the second LED unit 32 and the third LED unit 33 simultaneously or selectively. Here, the first LED unit 31 is also turned on.
The control unit 41 is connected to the switch mechanism 42. As the switch mechanism 42, for example, a switch attached to a wall of a room or a remote control switch can be used.
Therefore, the user issues a command to the control unit 41 by operating the switch mechanism 42, and the power supply device 27 is controlled by the control unit 41 so that the power supply device 27 is the first LED unit 31, the second LED unit 32, and the third LED unit 33. The desired LED unit 30 is turned on from among the above.

6A to 6E show examples of light distribution patterns and the LED unit 30 used at that time.
In the light distribution pattern shown in FIG. 6A, all of the first LED unit 31, the second LED unit 32, and the third LED unit 33 are turned on. This is suitable for illuminating the entire floor surface of the room and a part of the wall surface.

In the light distribution pattern shown in FIG. 6B, the second LED unit 32 and the third LED unit 33 are turned on. In this case, the first LED unit 31 that illuminates the center of the room from directly above is not turned on, and the second LED unit 32 and the third LED unit 33 are turned on.
Accordingly, the center of the room can be darkened, and the surroundings and the wall surface can be brightened.

In the light distribution pattern shown in FIG. 6C, only the third LED unit 33 is lit.
Therefore, only the wall surface on the third LED unit 33 side is illuminated, and the floor surface is not illuminated. For example, when watching television, only the wall behind the television is illuminated to make the illumination gentle to the eyes. it can.

In the light distribution pattern shown in FIG. 6D, only the first LED unit 31 is turned on.
Therefore, since only the central part of the room is bright and the surroundings are dark, this is suitable, for example, when eating at a table in the center of the room.

In the light distribution pattern shown in FIG. 6E, the second LED unit 32 and the third LED unit 33 in the side portion 24 of the second LED unit 32 are turned on.
Therefore, since the wall surface is mainly illuminated, for example, it is suitable for illuminating a picture or the like displayed on the wall surface.

  As described above, according to the lighting fixture 10 of the embodiment according to the present invention described above, the first LED unit 31 disposed on the mounting surface portion 23 substantially parallel to the ceiling surface 11 in the fixture main body 20 emits light. Illuminate the room underneath. Further, the second LED unit 32 and the third LED unit 33 that are arranged outside the first LED unit 31 and emit light to the side are switched simultaneously or selectively by the lighting switching means 40. Thereby, the whole room can be illuminated, and the production effect of the room and the preference of the user can be matched.

  In addition, an inclined surface 241 is provided on a side portion 24 provided outside the mounting surface portion 23 of the instrument body 20, and a second LED unit 32 is provided on the inclined surface 241 to irradiate light laterally, thereby providing an LED. Since the wall surface of the room can be actively illuminated by making use of the directivity of the unit 30, the wall surface can be brightened as compared with the case of just irradiating light directly below.

  In addition, since the inclination angle θ of the inclined surface 241 is 0 to 90 degrees with respect to the ceiling surface 11 that is the construction surface, the irradiation range can be expanded by the light irradiated to the side, and the ceiling surface 11 Can avoid over-illuminating.

  Further, the second LED unit 32 is disposed on one of the opposed inclined surfaces 241, and the third LED unit 33 that irradiates light to a side different from the second LED unit 32 is disposed on the other side. As a result, the entire room can be illuminated and matched to the effect of the room and the taste of the user.

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

10 Lighting equipment 11 Ceiling surface (construction surface)
DESCRIPTION OF SYMBOLS 20 Apparatus main body 23 Attaching surface part 24 Side part 241 Inclined surface 31 1st LED unit 32 2nd LED unit 40 Lighting switching means (theta) Inclination angle

Claims (4)

An instrument body having a mounting surface portion substantially parallel to the construction surface and a side portion provided outside the mounting surface portion;
A first LED unit that is disposed on the mounting surface portion and emits illumination light directly below;
A second LED unit disposed outside the first LED unit and irradiating illumination light to the side;
A third LED unit that irradiates a side different from the second LED unit,
A luminaire provided with lighting switching means for lighting at least the second LED unit and the third LED unit simultaneously or selectively. The lighting fixture according to claim 1,
In the side portion, an inclined surface inclined so as to approach the construction surface toward the outside from the mounting surface portion is provided,
The lighting fixture which provided the said 2nd LED unit in the said inclined surface. The lighting fixture according to claim 1 or 2,
The lighting fixture whose inclination angle of the said inclined surface is 0 to 90 degree | times with respect to the said construction surface. In the lighting fixture of any one of Claims 1 thru | or 3,
A lighting fixture in which the second LED unit is disposed on one of the opposed inclined surfaces and the third LED unit is disposed on the other.

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