JP2012054199A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of acquiring light distribution in a wide range and achieving miniaturization.SOLUTION: The lighting fixture 10 includes a fixture body 11, and a plurality of LED units 14 stored in the fixture body 11. The LED units 14 are mounted on a lower surface of an elongated mount 16 formed in a reverse-V shape.

Description

  The present invention relates to a lighting apparatus that is installed on a ceiling surface of a clean room or the like using an LED as a light source.

  2. Description of the Related Art Conventionally, there has been known a lighting fixture including an LED unit in which LEDs are arranged in a row (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2010-98302 (FIG. 1, claim 1)

The lighting fixture described in Patent Document 1 described above can be used as a common component by connecting the LEDs of the LED unit in series.
By the way, as shown in FIG. 9, the lighting fixture 100 in which the LED units 102 are arranged in two rows in the longitudinal direction of the fixture main body 101 has been proposed.
In such a conventional lighting device 100, the LED units 102 are arranged in two rows on the lower surface of the base 103 formed in a flat plate, so that the light distribution from the base 103 toward the floor can be controlled.

However, since the conventional lighting fixture 100 has the LED unit 102 disposed on the lower surface of the base 103 formed in a flat plate, the light distribution of the LED unit 102 can be expanded in the width direction of the fixture main body 101. There is a limit.
Moreover, when the conventional lighting fixture 100 increases the row | line | column of the LED unit 102 and increases a light quantity, the width dimension of the base 103 must be enlarged, and the width dimension of the fixture main body 101 is accompanying it accordingly. Increases size and size.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lighting fixture that can acquire a wide light distribution and can be made compact.

  The lighting fixture according to the present invention includes a fixture main body and a plurality of LED units accommodated in the fixture main body, and the LED unit is attached to the lower surface of a long mounting base formed in an inverted V shape.

  In the luminaire according to the present invention, the mounting base is formed of a material having good thermal conductivity, and a heat dissipation path can be secured.

  In the lighting fixture according to the present invention, the mounting base is abutted against the side of the mounting base adjacent to the mounting base.

  According to the lighting fixture concerning this invention, there exists an effect that it is compact while being able to acquire a wide light distribution.

The partially broken front view of the lighting fixture of 1st Embodiment which concerns on this invention Single sectional view of a mounting base applied to the lighting apparatus of FIG. Vertical sectional view seen from the side of the luminaire of FIG. Bottom view of the lighting fixture of FIG. The vertical sectional view seen from the side of the lighting fixture of a 2nd embodiment concerning the present invention Bottom view of the lighting fixture of FIG. The vertical sectional view seen from the front of the lighting fixture of a 3rd embodiment concerning the present invention. The vertical sectional view seen from the front of the lighting fixture of a 4th embodiment concerning the present invention. Vertical sectional view of a conventional lighting fixture

Hereinafter, the lighting fixture of several embodiment which concerns on this invention is demonstrated with reference to drawings.
(First embodiment)
As shown in FIG. 1, the lighting fixture 10 of 1st Embodiment is the mounting base with which the fixture main body 11, the frame 12, the power supply device 13, the LED unit 14 which has several LED15, and the LED unit 14 were attached. 16, a lamp case 17 that supports the mount 16, a mounting spring 18, a diffusion panel 19, and a panel 20, and is installed in a mounting hole 2 formed in the ceiling plate 1 of the clean room.

  The instrument main body 11 is made of a steel plate, is formed in a box shape with the long lower part opened, and is provided with a highly reflective white powder coating. The instrument main body 11 has, for example, a top plate 21 having a width dimension of 135 mm and a length dimension of 1245 mm, a pair of end plates 22 having a height dimension of, for example, 150 mm and arranged at the end in the longitudinal direction, and a width A pair of side plates 23 arranged in the direction.

  The top plate 21 has a wiring insertion part 25 for drawing in-apparatus wiring (see FIG. 5) 24 from the outside of the apparatus main body 11 to the inside at the center part, and the power supply device 13 is attached to the side part. . The wiring insertion part 25 of the top plate 21 maintains airtightness between the outside and the inside of the instrument body 11.

Since the power supply device 13 is electrically connected to an external power supply circuit through the in-appliance wiring 24, the power supply device 13 converts the commercial power supplied from the external power supply circuit into a DC power supply and supplies it to the LED 15. The instrument main body 11 is attached with an L-shaped bracket 26 for hooking the attachment spring 18 on the inner surface of the side plate 23.
The frame 12 is made of stainless steel and has a clear acrylic coating. The frame 12 is attached to the opening at the lower end of the instrument body 11, and the inserted screw 27 is screwed into the ceiling board 1.

  An LED unit 14 having a plurality of LEDs 15 is attached to a mounting base 16. The LED unit 14 has a correlated color temperature of 4000 K (Kelvin). The mounting base 16 has an inverted V shape in a vertical sectional view and is formed long in the longitudinal direction of the instrument body 11. The mount 16 is made of, for example, an aluminum extrusion mold having good thermal conductivity, and has a highly reflective white powder coating on the outer surface. The pair of LED units 14 and the single mounting base 16 constitute one unit. The instrument main body 11 accommodates two units.

The diffusion panel 19 is made of acrylic, has a transparent single-sided mat finish, and is attached to the opening at the lower end of the instrument body 11.
The panel 20 is made of transparent strength glass, and is attached to the front surface of the diffusion panel 19 at the opening at the lower end of the instrument body 11.

As shown in FIG. 2, in the mounting base 16, the lower surface of the inverted V-shaped main body 28 in the vertical sectional view is the mounting surface 29 of the LED unit 14. The attachment surface 29 has an inclination angle θ1 of 30 degrees with respect to the perpendicular.
The attachment surface 29 preferably has an inclination angle θ1 in the range of 30 to 45 degrees.

  An LED substrate 30 on which the LEDs 15 are mounted is attached to the attachment surface 29 by screwing screws 31. The mounting base 16 has a first plate portion 32 on one side of the main body 28 and a second plate portion 33 on the other side of the main body 28. The mount 16 has a plurality of bosses 36 to be supported on the lamp case 17 by screwing screws (see FIG. 1) 35 from the top plate (see FIG. 1) 34 of the lamp case 17 on the upper surface of the main body 28. .

  Therefore, since the mounting unit 16 has the LED unit 14 mounted on the mounting surface 29 on the lower surface of the inverted V-shaped main body 28 in the vertical cross section, the amount of light is increased by increasing the number of LED unit rows as in the prior art. In addition, the plurality of LED units 14 can be arranged on the mounting base 16 having a small width without increasing the width of the base.

The mounting base 16 has an uneven surface-shaped fitting portion 37 connected to the mounting base 16 adjacent to both side portions of the main body 28. Therefore, referring to FIG. 1, the pair of mounting bases 16 constituting the two units are coupled inseparably by fitting the fitting portions 37 to each other.
The mount 16 is formed of an aluminum extrusion material having good thermal conductivity, and a plurality of bosses 36 are attached to the top plate 34 of the lamp case 17 by screws 35, so that the mount 16 is thermally applied to the top plate 34 of the lamp case 17. Connected to.
Therefore, the mount 16 can secure a heat dissipation path by dissipating the heat from the LED 15 from the main body 28 and dissipating the heat through the top plate 34 of the lamp case 17.

  As shown in FIG. 3, the attachment spring 18 has a pair of arm portions 39 on both sides of the coil portion 38, and the coil portion 38 is attached to a spring fixing portion 40 fixed to the top plate 34 of the lamp case 17. . The attachment spring 18 is elastically deformed by a finger or the like so as to bring the pair of arm portions 39 close to each other when the lamp case 17 is supported by the fixture body 11, and is inserted into the pair of latch portions 41 included in the bracket 26. Then, by releasing the finger from the arm portion 39 of the mounting spring 18, the pair of arm portions 39 are expanded in diameter by elastic restoration and hooked to the hooking portion 41, and the lamp case 17 is bracketed by the elastic restoring force at that time. 26.

  As shown in FIG. 4, the luminaire 10 includes two units including a pair of LED units 14 attached in the longitudinal direction of the mounting base 16 coupled by fitting of the fitting portions 37. They are arranged in parallel along the longitudinal direction.

Next, the optical characteristics of the lighting fixture 10 will be described.
Returning to FIG. 1, in the lighting fixture 10, the LED 15 of the LED unit 14 emits light by the power supply from the power supply device 13. At this time, since the mounting base 16 is formed in an inverted V shape in vertical sectional view, the light component from the LED 15 included in the first plate portion 32 of the mounting base 16 is the second plate portion 33 in the first row unit. The light component from the LED 15 included in the second plate portion 33 of the mounting base 16 is emitted obliquely toward the front of the first plate portion 32. At the same time, in the second row unit, the light component from the LED 15 included in the first plate portion 32 of the mounting base 16 is emitted obliquely toward the front of the second plate portion 33, and the second plate portion 33 of the mounting base 16. The light component from the LED 15 included in the light is emitted obliquely toward the front of the first plate portion 32. The emitted light component is diffused by the diffusion panel 19, then passes through the panel 20 and is emitted toward the floor surface.

When the LED 15 emits light, the LED 15 generates heat. The heat generated by the LED 15 is transmitted from the LED board 30 to the mounting base 16, and is transmitted from the mounting base 16 to the lamp case 17 to be radiated.
Therefore, the luminaire 10 can obtain a wide light distribution as compared with the case where the LED unit is arranged on a base formed on a flat plate like the conventional one.

  As described above, according to the luminaire 10 of the first embodiment described above, the mounting base 16 has the LED unit 14 attached to the mounting surface 29 on the lower surface of the inverted V-shaped main body 28 as viewed in the vertical cross section. In addition, when the number of LED units is increased to increase the amount of light, the plurality of LED units 14 can be arranged on the mounting base 16 having a small width without increasing the width of the base, so that the size can be reduced. Moreover, according to the lighting fixture 10 of 1st Embodiment, since the LED unit 14 is attached to the lower surface of the elongate mounting base 16 formed in the reverse V shape, the base formed in the flat plate like the conventional one is carried out. Compared with the case where the LED unit is arranged on the table, a wide light distribution can be obtained.

  Moreover, according to the lighting fixture 10 of 1st Embodiment, since the mounting base 16 is shape | molded with the material with favorable heat conductivity, while releasing the heat | fever from LED15 from the main body 28 of the mounting base 16, it is a lamp. By dissipating heat through the top plate 34 of the case 17, a heat dissipation path can be secured.

(Second embodiment)
Next, the lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
In the following embodiments, components that are the same as those in the first embodiment described above or components that are functionally similar are denoted by the same or corresponding reference numerals in the drawings, and the description thereof is simplified or omitted. To do.

  As shown in FIG. 5 and FIG. 6, a lighting fixture 50 according to the second embodiment of the present invention includes a fixture main body 51 having a square top plate 52 having a width of 370 mm and a length of 370 mm, for example, It has a pair of end plates 53 that are 150 mm high and are arranged at the ends, and a pair of side plates 54 that are arranged on the sides. In the lighting fixture 50, six mounting bases 55 are connected in the width direction of the fixture main body 51, and six units are configured by the LED units 14 attached to each mounting base 55 as a pair.

  According to the lighting fixture 50 of the second embodiment, since the pair of LED units 14 are respectively attached to the six mounting bases 55 connected in the width direction of the fixture main body 51, further to the width direction of the fixture main body 51. A wide light distribution can be obtained.

(Third embodiment)
Next, the lighting fixture of 3rd Embodiment which concerns on this invention is demonstrated.
As shown in FIG. 7, the lighting fixture 60 of 3rd Embodiment which concerns on this invention has the main body 62 whose mounting base 61 is a reverse cross-section view V-shape. The mounting base 61 has an abutting surface 63 that is abutted against the side part of the mounting base 61 adjacent to both sides of the main body 62, and a screw hole for inserting a screw 64 that is screwed into the lamp case 17 into the central portion of the main body 62. 65. The mounting base 61 has a reflecting surface 66 in the plane portion at the center of the main body 62.
Therefore, the mounting base 61 of the lighting fixture 60 has a simple shape as compared with the mounting base 16 of the first embodiment, so that the mold cost can be greatly reduced.

  The lighting fixture 60 is positioned while the mounting base 61 is abutted on the abutting surface 63 of the adjacent mounting base 61 with the abutment surface 63, and then a screw 64 is inserted through the screw hole 65, and the screw 64 is inserted into the lamp case 17. It is attached to the lamp case 17 by being screwed.

  According to the lighting fixture 60 of the third embodiment, the mounting base 61 is mounted on the lamp case 17 after being positioned with its abutting surface 63 being abutted against the abutting surface 63 of the adjacent mounting base 61. The positioning of 61 can be simplified and the degree of freedom of the shape of the instrument can be increased.

  And according to the lighting fixture 60 of 3rd Embodiment, since it has the reflective surface 66 in the mounting base 61, it is not necessary to attach a reflecting plate of another structure, etc., and the reflected light of LED15 can be utilized.

(Fourth embodiment)
Next, the lighting fixture of 4th Embodiment which concerns on this invention is demonstrated.
As shown in FIG. 8, the lighting fixture 70 of 4th Embodiment which concerns on this invention has the main body 72 whose mounting base 71 is reverse V-shaped by the vertical cross section view. The mounting base 71 has an abutting surface 73 that abuts on the side of the mounting base 71 adjacent to both sides of the main body 72, and has a first plate portion 74 to which the LED unit 14 is attached on one side of the main body 72. The second plate part 75 to which the LED unit 14 is attached is provided on the other side of the main body 72, and the third plate part 76 to which the LED unit 14 is attached is provided at the center of the main body 72. The mounting base 71 has a reflecting surface 77 on the plane portion of the third plate portion 76.

  In the lighting fixture 70, when the LED 15 of the LED unit 14 emits light by power feeding from the power supply device 13, the light component from the LED 15 included in the first plate portion 74 of the mounting base 71 is directed toward the front of the second plate portion 75. The light component emitted from the LED 15 in the second plate portion 75 of the mounting base 71 is emitted obliquely toward the front of the first plate portion 74 and is simultaneously provided in the third plate portion 76 of the mounting base 71. The light component from the LED 15 and the light component of the reflected light from the reflecting surface 77 of the third plate portion 76 are emitted downward.

  According to the luminaire 70 of the fourth embodiment, in addition to the light component emitted obliquely from the LED 15 of the first plate portion 74 and the second plate portion 75 of the mounting base 71, the third plate portion 76 of the mounting base 71. The amount of light can be further increased by the light component emitted from the LED 15 toward the floor and the light component reflected by the reflection surface 77.

  In addition, in the lighting fixture of this invention, an instrument main body, a frame, a power supply device, an LED unit, etc. are not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

10, 50, 60, 70 Lighting fixture 11, 51 Appliance main body 14 LED unit 16, 55, 61, 71 Mounting base

Claims (3)

An instrument body;
A plurality of LED units housed in the instrument body,
The said LED unit is a lighting fixture attached to the lower surface of the elongate mounting base formed in the inverted V shape. The lighting fixture according to claim 1,
The said mounting base is a lighting fixture which is shape | molded with the material with favorable heat conductivity, and can ensure a thermal radiation path | route. The lighting fixture according to claim 1 or 2,
The said mounting base is a lighting fixture with which the side part is faced | matched by the side part of the adjacent mounting base.

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