JP5497488B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture using a light emitting diode (LED).

Conventionally, lighting fixtures using a plurality of LEDs have been proposed (see, for example, Patent Document 1).
As illustrated in FIG. 6, the lighting fixture 100 described in Patent Document 1 includes a plurality of LED modules 101 as light sources, and the plurality of LED modules 101 are mounted on a disk-shaped wiring board 102. The wiring board 102 on which the LED module 101 is mounted is attached to the inside of the cylindrical housing 103. A lens 104 and a cover 105 having translucency made of resin, for example, are attached to the front of the housing 103 in the irradiation direction of the wiring board 102 (upward in FIG. 6).

Japanese Patent Laying-Open No. 2010-36112 (FIG. 2)

As in the luminaire described in Patent Document 1 described above, in a luminaire using an LED as a light source, generally, irradiation light from a plurality of light sources is formed into a wide light source by a cover 105, and soft light is emitted. It is a lighting fixture.
However, since the irradiation light emitted through the cover 105 spreads and is irradiated, when illuminating a desired direction and range, the light emitted from the LED chip is efficiently irradiated in a predetermined direction and range. Improvement is desired.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus that can efficiently irradiate irradiation light emitted from an LED chip in a predetermined direction and range.

The lighting fixture of the present invention includes an LED substrate on which a plurality of LED chips are mounted, a light collecting panel that is provided in front of the LED substrate in the irradiation direction , and condenses light from the plurality of LED chips, and the light collecting device. A reflecting plate that expands outward from the front surface of the outer peripheral edge of the panel toward the front in the irradiation direction; and a cover member that condenses light from the light collecting panel provided in front of the reflecting plate in the irradiation direction; wherein the reflector, that provided at an angle that can reflect the light having passed through the condensing panel.

  In the present invention, a panel is provided in front of the irradiation direction of the LED substrate on which a plurality of LED chips are mounted, and a reflecting plate is provided that expands outward from the front surface of the outer peripheral edge of the panel toward the front in the irradiation direction. Thus, it is possible to provide a lighting apparatus having an effect that the irradiation light emitted from the light and transmitted through the panel can be efficiently irradiated in a predetermined direction and range.

The disassembled perspective view which shows the lighting fixture of embodiment which concerns on this invention Partial sectional drawing of the lighting fixture of embodiment which concerns on this invention FIG. 3 is an enlarged cross-sectional view of a portion III in FIG. 2, (A) is a normal use state, (B) is a state where the reflector is pushed up. (A) is a perspective view of a spring receiver provided in the instrument body, (B) is a front view of a mounting spring. Perspective view of cover member Exploded perspective view of a conventional lighting fixture

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
As shown in FIG. 1, a lighting fixture 10 according to an embodiment of the present invention is an anchor that is fitted into an opening 12 provided in a ceiling 11 that is a mounted portion and is connected to a structural member of a building. An instrument body 20 is secured to the bolt 13.

  As shown in FIGS. 1 and 2, the instrument body 20 has a rectangular box shape with an opening in the irradiation direction (hereinafter also simply referred to as “front” or “downward”), and the lighting device 21 is provided on the top plate 20A. Electrical parts such as are attached. Around the opening at the front end of the instrument body 20, a turn-up portion 20 </ b> B is provided over the entire circumference, and comes into contact with the lower surface of the ceiling 11 when the instrument body 20 is fitted into the opening 12 of the ceiling 11. .

  As shown in FIG. 4A, a spring receiver 22 is provided on the side wall 20C of the instrument body 20 to lock an attachment spring 31 attached to a frame 30 described later. The spring receiver 22 has a pair of receiving pieces 22A and 22A that expand downward in a “C” shape by cutting and raising the side wall 20C of the instrument body 20, for example. The receiving piece 22 </ b> A is provided so as to protrude to the inside of the instrument body 20.

As shown in FIGS. 1 and 2, a rectangular frame 30 is detachably attached to the front of the instrument body 20. Therefore, when the frame 30 is mounted, the folded portion 20B of the instrument body 20 is hidden and exposed on the lower surface of the ceiling 11, so that the appearance is improved.
As shown in FIGS. 1 to 3, the frame 30 has a horizontal main body receiving portion 33 with which the lower surface of the folded portion 20 </ b> B of the instrument main body 20 abuts over the entire circumference. Above the main body receiving portion 33, a horizontal support portion 34 that supports a cover member 32 and a reflecting plate 40 described later is provided, and the outer edge of the support portion 34 is bent upward to form a vertical wall portion 35. Has been.

A stopper member 36 is provided along the outer surface of the vertical wall portion 35 as a support fitting that restricts a later-described reflector 40 so as to be movable in a vertical direction by a predetermined distance. The stopper member 36 includes a lower plate 36A that contacts the main body receiving portion 33 of the frame 30, and a vertical plate 36B that is orthogonal to the lower plate 36A and contacts the vertical wall portion 35 of the frame 30. The upper end is bent toward the reflecting plate 40 to form a stopper portion 36C. The stopper portion 36C is bent at an acute angle θ, and the tip is directed downward.
The stopper member 36 does not have to be provided over the entire circumference of the frame body 30, and can be provided at least one place on each side of the frame body 30.

As shown in FIGS. 1 and 2, the frame body 30 is provided with an attachment spring 31 for attaching the frame body 30 to the instrument body 20, and is locked to the spring receiver 22 of the instrument body 20. The frame 30 is attached to the instrument body 20.
As shown in FIG. 4 (B), the mounting spring 31 has a pair of locking arms 31A, 31A, and both locking arms 31A are separated from each other (in the direction of the arrow in FIG. 4 (B)). That is, it is biased outward by an elastic force. Each of the locking arms 31A is bent at the central portion, and is formed in an overall “<” shape by the distal end portion 31C and the proximal end portion 31D. Furthermore, the tip of the tip portion 31C is bent outward at a substantially right angle to form a hook portion 31B.

As shown in FIG. 1 to FIG. 3, a cover member 32 as a transmissive second panel is provided on the frame body 30 so as to be movable by a certain amount in the vertical direction. On the cover member 32, the reflecting plate 40 is provided so as to be movable by a certain amount in the vertical direction.
As shown in FIGS. 2 and 5, the cover member 32 is a condensing panel having a flat upper surface 32A and a plurality of quadrangular pyramid-shaped convex portions 32C arranged on the lower surface 32B. The irradiation light passing through the cover member 32 is condensed and irradiated on each convex portion 32C of the lower surface 32B.

  The reflecting plate 40 has an overall quadrangular pyramid shape, and expands outward toward the front in the irradiation direction. The upper end of the reflecting plate 40 is opened (opening 41), and the inner surface of the inclined surface is a reflecting surface. Further, the lower end portion of the reflection plate 40 is bent in the horizontal direction to form a horizontal portion 43, and the horizontal portion 43 is placed on the upper surface of the cover member 32. The front end of the horizontal portion 43 is bent upward to form a vertical wall 44, and the square in plan view constituted by the outer surface of the vertical wall 44 is a plane constituted by the inner surface of the vertical wall portion 35 of the frame body 30. It is slightly smaller than the viewing rectangle. Therefore, the vertical wall 44 is within a range until it comes into contact with the support portion 34 of the frame body 30 that comes into contact with the cover member 32 and the stopper portion 36 </ b> C of the stopper member 36 attached to the frame body 30. It is possible to move up and down along the inner surface of the vertical wall 35.

As shown in FIGS. 1 and 2, a light emitting unit 50 is attached to the opening 41 of the reflecting plate 40. The light emitting unit 50 includes an LED substrate 52 on which a plurality of LED chips 51 that are light sources are mounted, and a panel 53 that is a first panel provided in front of the LED substrate 52 in the irradiation direction. The angle φ of the reflecting surface 42 with respect to the panel 53 is set to an angle at which the illumination light transmitted through the panel 53 can be reflected.
The panel 53 can be made of the same material as the cover member 32 described above (see FIG. 5).

  Further, as shown in FIG. 2, the horizontal distance between the LED chip 51A provided at the end of the LED substrate 52 and the inner end surface of the opening 41 of the reflector 40 is LA, and the reflection surface 42 up to the LED substrate 52 is The extension line length is LB, and the vertical distance between the LED chip 51 and the front surface of the panel 53 is LC. In this case, for example, it is desirable that LB> LA, LC is set to around 20 to 30 mm, and the angle φ is 30 ° or more.

Next, an operation of attaching the frame body 30 to the instrument body 20 that is fitted and attached to the opening 12 of the ceiling 11 will be described.
First, both locking arms 31A of the mounting spring 31 provided on the frame 30 are brought close to each other with fingers and inserted between the pair of receiving pieces 22A and 22A of the spring receiver 22 provided on the instrument main body 20. Then let go. Both the locking arms 31A expand outward due to the elastic force, and the distal end portion 31C of the locking arm 31A is locked to the receiving piece 22A. Even if the frame 30 is pulled downward in this state, the hooking portion 31B of each locking arm 31A is caught by the receiving piece 22A, so that it does not fall off (temporarily fixed state).
Next, by pushing up the entire frame 30, the base end portion 31 </ b> C of the locking arm 31 </ b> A of the mounting spring 31 is locked and fixed to the receiving piece 22 </ b> A (completely mounted state).

  On the other hand, when removing the frame 30 from the instrument body 20 when the LED substrate 52 or the like fails, as shown in FIG. 3B, the cover member 32 is pushed up with a finger (arrow F in FIG. 3B). The cover member 32 and the reflection plate 40 are lifted. Along with this, a gap S is formed between the cover member 32 and the frame body 30, so a finger is put into the gap S and the frame body 30 is pulled down. As a result, the frame body 30 is lowered to the above-described temporarily fixed state, so that a finger is put between the frame body 30 and the instrument main body 20, the attachment spring 31 is pinched, and both the locking arms 31A are brought close to each other. Are extracted from between the receiving pieces 22A and 22A. Thereby, the frame body 30, the cover member 32, the reflecting plate 40, and the light emission part 50 can be removed from the instrument main body 20. FIG.

  As described above, according to the luminaire 10 according to the embodiment of the present invention described above, the panel 53 is provided in front of the irradiation direction of the LED substrate 52 on which the plurality of LED chips 51 are mounted. Since the reflection plate 40 that spreads outward toward the front is provided, the irradiation light emitted from the LED chip 51 and transmitted through the panel 53 can be efficiently irradiated in a predetermined direction and range.

  In addition, since the reflecting surface 42 of the reflecting plate 40 is provided at an angle at which the illumination light transmitted through the panel 53 can be reflected, the irradiation light can be efficiently irradiated in a predetermined direction and range.

  Further, since the frame member 30 is provided with the stopper member 36 that supports the reflection plate 40 so as to be movable a predetermined distance backward in the irradiation direction, the reflection plate 40 is raised by a predetermined distance by pushing up the reflection plate 40 with a finger. Thereby, when removing the frame body 30 from the instrument main body 20, the space S which applies a finger is formed, and the frame body 30 can be lowered and removed easily.

  In addition, the rear end of the stopper member 36 in the irradiation direction is folded inward at an acute angle, and the stopper portion 36C that comes into contact when the reflection plate 40 moves a predetermined distance rearward in the irradiation direction is provided. Can be prevented.

  Moreover, since the cover member 32 is further provided in front of the irradiation direction of the panel 53 provided in front of the irradiation direction of the LED chip 51, the illuminance immediately below the LED chip 51 can be further improved than usual.

  Moreover, since the panel 53 and the cover member 32 condense the irradiation light from the LED chip 51, the illuminance immediately below the LED chip 51 can be further improved than usual. Furthermore, since the cover member 32 is larger than the panel 53, light leakage can be prevented.

  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 40 Reflector 51 LED chip 52 LED board 53 Panel

Claims (1)

An LED substrate on which a plurality of LED chips are mounted;
A condensing panel for condensing light from the plurality of LED chips, provided in front of the LED substrate in the irradiation direction;
A reflector that expands outward from the front surface of the outer peripheral edge of the light collecting panel toward the front in the irradiation direction;
A cover member for condensing light from the condensing panel, provided in front of the reflector in the irradiation direction;
Equipped with a,
The lighting fixture provided with the angle which can reflect the light which the said reflecting plate permeate | transmitted the said condensing panel .

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