JP2012186085A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture that can improve portability.SOLUTION: The lighting fixture 1 includes a globe 16 on an irradiation opening 11 of a fixture body 10, and an integrated gripping part 51 integrally having a plurality of globe fixing parts 20 projected outward on an edge of the irradiation opening 11 and formed by connecting the globe fixing parts 20.

Description

  The present invention relates to a technique for improving the portability of a lighting fixture.

  Since there is a risk of ignition by leaking gas in underground grooves such as power cables, gas pipes, communication cables, etc. installed in the basement, or petrochemical plants, etc., explosion-proof or safety-explosion-proof type equipment is used as lighting equipment. (For example, refer to Patent Document 1 and Patent Document 2).

JP 2005-150003 A JP-A-9-63349

However, the explosion-proof or safety-explosion-proof lighting fixture is very heavy and not easy to carry. Even if the weight is light, depending on the structure of the lighting fixture, it may be difficult to carry and easy to carry.
This invention is made | formed in view of the situation mentioned above, and aims at providing the lighting fixture which can improve portability.

  In order to achieve the above object, the present invention comprises a glove in an irradiation opening of an instrument body, and a plurality of glove fixing portions projecting outward are integrally provided on an edge of the irradiation opening, and the glove fixing portion Provided is a luminaire characterized by integrally including a gripping part formed by connecting each other.

  Further, the present invention is characterized in that in the above-mentioned lighting apparatus, a flange portion into which the globe is fitted is provided on the entire periphery of the edge portion of the irradiation opening, and the globe fixing portion is provided in the flange portion.

  In order to achieve the above object, the present invention includes a glove in an irradiation opening of the instrument body, a flange portion into which the glove is fitted around the entire periphery of the irradiation opening, and the flange portion. Provided is a luminaire comprising a plurality of flange reinforcing portions integrally and a gripping portion formed by connecting the flange reinforcing portions together.

  Further, the present invention is characterized in that, in the above-mentioned lighting fixture, a radiator plate on which an LED substrate is placed is held in the fixture main body at a position matching the flange portion.

  According to the present invention, since the grip portion is provided, it is easy to carry the instrument and the workability at the time of installation work is improved. Furthermore, since the glove fixing part integrally projecting at the edge of the irradiation opening is connected and the grip part is provided integrally, the grip part is firmly provided on the instrument body.

It is a figure which shows the installation state of the lighting fixture which concerns on embodiment of this invention, (A) is the perspective view seen from the lower side, (B) is the perspective view seen from the upper side. It is a figure which shows the structure of a lighting fixture, (A) is a front view, (B) is a bottom view, (C) is a rear view. It is sectional drawing of a lighting fixture. It is a perspective view of an instrument main body. It is an enlarged view of the site | part A containing the glove | globe fixing | fixed part enclosed with the dotted line of FIG.1 (B). It is a figure which shows a lighting fixture when a light source is LED, (A) is sectional drawing, (B) is a bottom view. It is a figure which shows the lighting fixture which concerns on the modification of this invention. It is a figure which shows the lighting fixture which concerns on the other aspect of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, an explosion-proof lighting fixture is illustrated.
1A and 1B are diagrams illustrating an installation state of the lighting fixture 1 according to the present embodiment, in which FIG. 1A is a perspective view seen from the lower side, and FIG. 1B is a perspective view seen from the upper side. 2A and 2B are diagrams illustrating a configuration of the lighting fixture 1, in which FIG. 2A is a front view, FIG. 2B is a bottom view, and FIG. 2C is a rear view. FIG. 3 is a cross-sectional view of the lighting fixture 1.
As shown in FIG. 1, the lighting fixture 1 is installed by being attached to an existing terminal box 2 on the ceiling surface. The terminal box 2 serves as a mounting base for the lighting fixture 1 and supplies commercial power to the lighting fixture 1. The terminal box 2 includes a plurality of fixed legs 4 and illuminates the fixed legs 4 with bolts or the like on the ceiling surface. It is firmly fixed so that it can withstand the load of the instrument 1.
Further, the terminal box 2 is provided with an opening 5 for drawing a power line for commercial power and an opening (not shown) for drawing a power line for the luminaire 1. Wired and commercial power is supplied to the luminaire 1.
The terminal box 2 is provided with openings 5 in four directions. The terminal box 2 is configured such that a power line can be drawn from an appropriate opening 5 and a feed wiring to another lighting fixture 1 can be drawn. For example, 5 is closed with a plug or the like.

  The lighting fixture 1 includes a box-shaped fixture main body 10 provided with an irradiation opening 11 by opening the bottom side facing the irradiation surface (floor surface in the present embodiment). The instrument body 10 is formed by die-casting a metal material such as aluminum alloy having high thermal conductivity, for example, and as shown in FIG. 1B, the upper surface of the body facing the installation surface (the ceiling surface in the present embodiment). 10A is provided with a plurality of ridges 12 for improving heat dissipation and a connecting portion 14 connected to the terminal box 2.

As shown in FIGS. 1 (A) and 2 (B), the luminaire 1 is made of tempered glass having a predetermined thickness (for example, 5 mm) that closes the irradiation opening 11 in the irradiation opening 11, and is seen in a plan view. A rectangular flat globe 16 and a lattice-like guard 18 that protects the globe 16 are provided. In addition, in each drawing, in order to show the inside of the lighting fixture 1, the guard 18 is shown with the dotted line.
A structure for attaching the globe 16 and the guard 18 to the instrument body 10 will be described later.

As shown in FIG. 3, the interior of the instrument body 10 is partitioned by a partition plate 24 into a light source storage chamber 26 on the irradiation opening 11 side and an electric box storage chamber 28 on the mounting surface side. As shown in FIGS. 3 and 4, the partition plate 24 is screwed to a plurality of supports 29 erected on the top surface 10 </ b> K of the instrument body 10.
In the light source storage chamber 26, as shown in FIG. 2B, a socket fixing plate 27 to which a socket 25 is fixed is provided on the partition plate 24, and a compact fluorescent lamp 30 (hereinafter simply referred to as “lamp 30”) is provided in the socket 25. Is attached). Reflecting plates 32 and 34 are fixed to the partition plate 24 between the left and right sides of the lamp 30 and the partition plate 24, respectively.

  As shown in FIG. 3, a casting container body 36 having an explosion-proof pressure-resistant structure is housed in the electric box storage chamber 28 and is firmly fixed with screws or the like. Contains a container.

  The light source storage chamber 26 is closed when the irradiation opening 11 is covered with the globe 16, but as shown in FIGS. 3 and 4, a flange bulging outward is formed around the irradiation opening 11 of the instrument body 10. The portion 40 is formed integrally, and a fitting groove 44 into which the waterproof packing 42 is fitted is formed in the flange portion 40, and the globe 16 is fitted into the flange portion 40 with the packing 42 interposed therebetween as shown in FIG. It is.

As shown in FIGS. 1 to 3, the glove 16 has one side hinged to the flange portion 40 of the instrument body 10 by a hinge 19 so as to be freely opened and closed, and one side of the opening and closing end side is the instrument body 10. And is fixed to the instrument body 10.
Specifically, the flange portion 40 that is the edge portion of the irradiation opening 11 is provided with the glove fixing portions 20 that are integrally projected so as to bulge outwardly, on each of the two spaced apart on the same side. Yes. The glove fixing portions 20 are formed with screw holes that are screwed with the feed screws, and the glove fixing pieces 48 are screwed with the feed screws 46 (FIG. 2B). The open / close end of is screwed.

  As shown in FIGS. 2B and 3, a guard support piece 49 is screwed and fixed to the hinge coupling portion, and the tip of the glove fixing piece 48 on the glove 16 side stands up in an L shape and is guarded. A support portion 48A is formed, and the guard 18 is screwed and fixed to the guard support piece 49 and the guard support portion 48A to be supported with a gap from the globe 16, and the guard support piece 49 and the guard support portion are supported. It is connected to the globe 16 through 48A.

FIG. 5 is an enlarged view of the part A including the globe fixing portion 20 shown by being surrounded by a dotted line in FIG.
As shown in the figure, the connection end 20A connected to the globe fixing portion 20 and the flange portion 40 is bulged to the installation surface side (electric box storage chamber 28 side) more than other locations, and is thickened. It is firmly coupled to the instrument body 10. And the holding | grip part 51 which can be hold | gripped and grasped by hand by integrally forming the connecting rod 50 which connects these two globe fixing | fixed parts 20 is provided.
Thereby, at the time of conveyance of the lighting fixture 1, it can carry easily by holding | griping the holding part 51, and the improvement of portability is achieved. Furthermore, at the time of installation, the grip 51 can be gripped and attached to the terminal box 2, so that the installation work becomes easy.
Moreover, since the glove fixing part 20 is connected and the grip part 51 is provided integrally, the grip part 51 is firmly provided on the instrument body 10.

  Further, for example, when a finger is hooked on the flange portion 40 or the lighting device 1 is lifted by holding the guard 18, an unexpected force is applied to the irradiation opening 11 or the globe 16, and distortion due to deformation or the like occurs, resulting in loss of airtightness. There's a problem. In particular, in the explosion-proof lighting fixture 1, the container body 36 that accommodates the inverter stabilizer is made of a casting and has a heavy weight of about 10 kg. Such a problem becomes prominent. Further, when the flange portion 40 and the globe 16 are provided, the luminaire 1 cannot be firmly grasped, so there is a risk that the luminaire 1 may be dropped by sliding the hand. In this case, due to an external force applied to the end and the guard 18 due to the fall Due to the deformation, a problem occurs in the adhesion between the globe 16 and the packing 42.

  On the other hand, in this embodiment, since the flange part 40 is provided in the perimeter of the edge part of the irradiation opening 11, the glove | globe fixing | fixed part 20 is provided in the said flange part 40, and the holding part 51 is provided, the irradiation opening 11 is provided. Is reinforced by the flange portion 40, and the load when the grip portion 51 is gripped is not dispersed directly by the flange portion 40 and is not directly applied to the irradiation opening 11, so that deformation of the irradiation opening 11 can be prevented.

  Here, the instrument body 10 is configured such that the light source can be replaced from the lamp 30 to the LED 70 (FIG. 6). That is, as shown in FIG. 4, a plurality of ribs 60 extending from the top surface 10 </ b> K toward the irradiation opening 11 are formed on the inner wall 10 </ b> L of the instrument body 10. When the light source is the LED 70, instead of the built-in components such as the partition plate 24, as shown in FIG. 6A, a heat radiating plate 62 made of a high thermal conductivity material is attached to each rib 60. A container body 68 having an explosion-proof pressure-resistant structure in which a power supply circuit of the LED 70 is housed is housed between 62 and the top surface 10K.

As shown in FIG. 6B, the heat radiating plate 62 extends to the extent that the edge 62A is in contact with the inner wall 10L of the instrument main body 10, and the heat radiating plate 62 and the instrument main body 10 are thermally coupled. A plurality of LED substrates 71 on which the LEDs 70 are mounted are directly fixed on the surface of the heat radiating plate 62. As a result, the heat generated by each LED 70 is transmitted to the instrument body 10 through the heat radiating plate 62 and radiated.
Further, as shown in FIG. 6A, the heat radiating plate 62 is held by ribs 60 at a height located near the flange portion 40 of the instrument body 10, and the flange portion 40 serves as a heat mass and the heat radiating plate. The heat of 62 is easily absorbed, and the cooling performance of the LED 70 disposed nearby is enhanced.

  As described above, according to the present embodiment, since the instrument body 10 includes the grip portion 51, the instrument can be easily carried and the workability during installation work is improved. Furthermore, since the glove fixing portion 20 that protrudes integrally with the edge of the irradiation opening 11 is connected and the grip portion 51 is integrally provided, the grip portion 51 is firmly provided on the instrument body 10.

  Moreover, according to this embodiment, the flange part 40 in which the glove | globe 16 fits is provided in the perimeter of the edge part of the irradiation opening 11, and the said glove | fixing part 20 is provided in the said flange part 40, and the structure which provides the holding part 51 is provided. Therefore, the irradiation opening 11 is reinforced by the flange portion 40, and the load when the holding portion 51 is held is not distributed directly to the irradiation opening 11 and prevented from being deformed. it can.

  Moreover, according to this embodiment, since it was set as the structure which hold | maintains the heat sink 62 which mounted LED board 71 in the instrument main body 10 in the position match | combined with the flange part 40, the flange part 40 becomes a heat mass and the heat sink 62 Heat is easily absorbed, and the cooling performance of the LED 70 disposed nearby is improved.

  The above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified and applied without departing from the spirit of the present invention.

For example, in the above-described embodiment, the configuration in which the grip portion 51 is provided only on one side of the irradiation opening 11 is illustrated, but the present invention is not limited thereto. That is, as shown in FIG. 7, a hinge fixing portion 120 is integrally provided on the flange portion 40 of the instrument body 110 for each hinge 19 of the globe 16 in the same manner as the globe fixing portion 20, and the hinge fixing portion 120 is connected. You may comprise the lighting fixture 1 provided with the holding parts 51 and 151 on both sides of the instrument main body 110 by providing the holding part 151 integrally. In this case, in the grip portion 151, the hinge fixing portion 120 corresponds to the globe fixing portion 20.
In addition, as shown in FIG. 7, fins 180 may be formed on the outer periphery of the flange portion 40 in order to increase the strength of the flange portion 40 and further improve the heat dissipation of the LED substrate 71. The location where the fin 180 is formed is arbitrary as long as the flange portion 40 functions as a heat mass of the LED substrate 71, but it is preferable to provide the location corresponding to the location where the LED substrate 71 and the instrument body 110 are close to or in contact with each other. .

  In addition, for example, two grip fixing parts 20 are connected to form one gripping part 51. However, the present invention is not limited thereto, and three or more globe fixing parts 20 may be connected to form one gripping part 51. . Moreover, the planar view shape of the instrument main body 10 and the irradiation opening 11 may be a circle other than a rectangle.

Moreover, in embodiment mentioned above, although the glove | globe fixing | fixed part 20 (hinge fixing | fixed part 120) was connected and the holding part 51 (gripping part 151) was comprised, it does not restrict to this.
That is, as shown in FIG. 8, in the lighting fixture 200 of the fixture body 210 in which the globe fixing portion 220 is projected toward the inside of the irradiation opening 11, it is provided over the entire periphery of the edge portion of the irradiation opening 11. The flange portion 40 is provided with a plurality of flange reinforcing portions 221 having substantially the same shape as the connecting end portion 20A. The flange reinforcing portions 221 are connected to each other by a connecting rod 50, and the grip portion 51 is provided integrally with the instrument main body 210. It is good also as a structure.
Further, as shown in FIG. 8, when the globe 16 is hinge-coupled to the edge of the irradiation opening 11 by an inner hinge 219, a flange reinforcing part 221 is provided on the hinge coupling side to integrate the grip part 51. You may comprise.

  In addition, for example, the present invention is not limited to an explosion-proof type or safety-enhanced type lighting fixture, and can be applied to any lighting fixture as long as it is a lighting fixture including a glove in an irradiation opening.

DESCRIPTION OF SYMBOLS 1,100,200 Lighting fixture 10,110,210 Apparatus main body 11 Irradiation opening 16 Globe 18 Guard 19 Hinge 20, 220 Globe fixing part 20A Connection end part 40 Flange part 42 Packing 44 Insertion groove 48 Globe fixing piece 50 Connecting rod 51 , 151 Grip part 60 Rib 62 Heat sink 70 LED
71 LED board 110 Instrument body 120 Hinge fixing part 219 Inner hinge 221 Flange reinforcement part

Claims (4)

  Illumination characterized in that a glove is provided in the irradiation opening of the instrument body, a plurality of glove fixing parts are integrally provided at an edge of the irradiation opening, and a gripping part formed by connecting the glove fixing parts is integrally provided. Instruments.   The lighting apparatus according to claim 1, further comprising: a flange portion into which the globe is fitted, and the globe fixing portion provided in the entire periphery of the edge portion of the irradiation opening.   The irradiation opening of the instrument body is provided with a glove, the entire circumference of the edge of the irradiation opening is provided with a flange part into which the glove is fitted, and the flange part is provided with a plurality of flange reinforcing parts integrally, and the flange reinforcement A lighting apparatus comprising a gripping part formed by connecting parts together.   The lighting fixture according to claim 2 or 3, wherein a heat sink on which an LED substrate is placed is held in the fixture main body at a position matched with the flange portion.

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