JP2017111972A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire which enables reduction of the number of components while improving waterproofness.SOLUTION: A luminaire including a light emitting element unit 21 has a globe case 10 in which a light source support part 12A supporting the light emitting element unit 21 and a globe part 12B which transmits light of the light emitting element unit 21 are integrally formed. The light emitting element unit 21 is housed in the glove case 10.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a lighting fixture having a waterproof structure.

  Lighting fixtures using light emitting elements such as LEDs as light sources are used in various markets, and the heat dissipation structure of the light emitting elements is designed to suit each market (for example, see Patent Document 1). In particular, in outdoor lighting fixtures, in consideration of heat dissipation of light emitting elements, an increasing number of fixtures are formed of a case supporting the light emitting elements made of a metal having high thermal conductivity and a glove made of light weight resin.

Japanese Patent No. 5602289

However, in lighting fixtures that are placed in environments that require waterproofing, such as outdoor lighting fixtures, the combination of dissimilar materials of metal and resin requires a seal member between the dissimilar materials, increasing the number of parts and reducing waterproof performance Risk.
This invention is made | formed in view of the situation mentioned above, and it aims at providing the lighting fixture which can reduce a number of parts, ensuring waterproofness.

  In order to achieve the above-described object, the present invention, in a lighting fixture including a light emitting element unit, integrally formed a light source support part that supports the light emitting element unit and a globe part that transmits light from the light emitting element unit. A glove case is provided, and the light emitting element unit is housed in the glove case.

In the above-described configuration, the glove case may be configured by integrally forming the light-transmissive light source support portion and the light-transmissive glove portion.
In the above-described configuration, the light emitting element unit is a linear light source, and the glove case includes a globe body that is formed in a cylindrical shape and has at least one end as an opening, and a closing cover that closes the opening. May be.
In the above-described configuration, a support body that slidably supports the light emitting element unit inserted from the opening may be formed on the inner surface of the glove case.
In the above-described configuration, the light emitting element unit may include a plurality of light emitting elements.

  According to the present invention, since the glove case in which the light source support part that supports the light emitting element unit and the glove part that transmits light of the light emitting element unit are integrally formed is provided, the sealing member is provided between the light source support part and the glove part. Is eliminated, and the number of parts can be reduced while ensuring waterproofness.

It is a perspective view which shows the lighting fixture which concerns on embodiment of this invention. It is a figure which shows a lighting fixture, (A) is a top view, (B) is a front view, (C) is a bottom view, (D) is a side view. It is a disassembled perspective view which shows a lighting fixture. It is IV-IV sectional drawing of FIG. It is a figure which shows an edge part cover, (A) is a side view, (B) is a front view, (C) is a bottom view. It is a figure which shows the edge part of a light source unit, (A) is a top view, (B) is a longitudinal cross-sectional view. It is a schematic diagram which shows a light source part. It is a figure which shows the lighting fixture which concerns on the modification of this invention, (A) is a front view, (B) is a bottom view, (C) is a top view, (D) is a side view. It is explanatory drawing which shows angle adjustment of a lighting fixture.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a lighting apparatus according to the present embodiment. 2A and 2B are diagrams illustrating a lighting fixture, in which FIG. 2A is a plan view, FIG. 2B is a front view, FIG. 2C is a bottom view, and FIG. 2D is a side view. FIG. 3 is an exploded perspective view showing the lighting apparatus. 4 is a cross-sectional view taken along the line IV-IV in FIG.
As shown in FIGS. 1 and 2, the lighting fixture 1 is a so-called trough-type lighting fixture in which a light source unit 5 is attached to a fixture main body 3 and has a waterproof structure and is installed in an environment that requires waterproofing such as outdoors. It is configured to be possible.

As shown in FIG. 3, the instrument body 3 is formed in a box shape having a substantially rectangular shape in plan view, and one surface extending in the longitudinal direction is an open surface. The instrument body 3 is installed by supporting a surface opposite to the open surface directly on an installation surface (not shown) or via a hanging tool (not shown). In addition, the direction of the up-and-down described below has shown the direction at the time of seeing the lighting fixture 1 from the front side in the state which installed the open surface facing down. The instrument main body 3 is formed of a metal such as a steel plate or stainless steel, for example, and a power line hole 3A is formed on a surface (upper surface) facing the open surface and a short side surface.
As shown in FIG. 4, the light source unit 5 is configured by accommodating at least one (two in this embodiment) light source unit 20 in a cylindrical glove case 10. In addition, in FIG. 4, the lighting fixture 1 is shown omitting half from the center.

  The glove case 10 is formed in a substantially semicircular cross section with the upper surface 10A being substantially flat, and a metal power supply device mounting plate 31 is attached to the upper surface 10A. The power supply device mounting plate 31 includes engaging portions 31A at both edges extending in the longitudinal direction, and the engaging portions 31A are engaged with the protruding portions 10B formed on the upper surface 10A of the glove case 10, The glove case 10 is slidably supported on the upper surface 10A. The power supply device mounting plate 31 is attached to the glove case 10 by screwing the end portion of the power supply device mounting plate 31 to the end cover 13. In the present embodiment, the engaging portion 31A is formed as a bent portion in which both edges of the power supply device mounting plate 31 are bent inward, and the protruding portion 10B is inclined outwardly along the bent engaging portion 31A. It is formed in the extending rib shape. However, the configuration of the engaging portion 31A and the protruding portion 10B is not limited to this.

The power supply device mounting plate 31 is provided with at least one temporary suspension 32 such as a V spring (two in this embodiment). As shown in FIG. 3, the light source unit 5 is temporarily suspended by hooking the temporary suspension 32 on a temporary suspension bracket 3 </ b> B provided on the instrument body 3, and fixing portions 3 </ b> C provided at both ends of the instrument body 3. It is fixed with screws.
In addition, a power supply device 33 having a lighting circuit for controlling lighting of the light source unit 20 and a power supply is fixed to the power supply device mounting plate 31. The power supply line 34A from the power supply device 33 and the ground line 34B of the light source unit 5 are drawn from the power supply wire hole 3A of the instrument body 3 through the power supply bushing 35 (see FIG. 2).

  The glove case 10 is formed into a long cylindrical glove body (glove) 11 having both ends as openings 11A, and a bottomed cylinder having one end as an open portion 13A and the other end as an end surface 13B. And an end cover (blocking cover) 13 for closing the opening 11A. The globe body 11 and the end cover 13 are formed of a resin material. In the glove case 10, the end cover 13 is attached to the glove body 11 via a semi-transparent annular seal member 36 (see FIG. 6) such as silicon rubber packing, and the glove body 11 and the end cover are covered by the seal member 36. 13 is sealed in the circumferential direction to form a waterproof structure. Thus, since the globe body 11 is formed in a cylindrical shape and the opening 11A is used as one end and the other end of the globe body 11, for example, an opening is provided between a support portion of the globe body 11 and a globe portion 12B described later. Since the opening 11A can be formed to be relatively small as compared with the case where it is formed, waterproofness can be reliably ensured.

  As shown in FIG. 4, the light source unit 20 includes at least one (two in this embodiment) light emitting element units (linear light sources) 21 in which a plurality of light emitting elements 21B as light sources are arranged on a substrate 21A. The plurality (two) of light emitting element units 21 are arranged in series along the longitudinal direction of the glove case 10. For example, an LED is used for the light emitting element 21B.

  By the way, conventionally, in outdoor lighting fixtures, in consideration of heat dissipation, a glove formed of light weight resin is attached to a case formed as a heat dissipation member with a metal having high thermal conductivity through a sealing material such as packing. Thus, the light source unit 5 was formed. However, since the seal member is interposed between the case and the glove, there are problems of an increase in the number of parts and a risk of deterioration in waterproof performance.

Therefore, in the present embodiment, the light emitting element unit 21 is supplied with a current sufficiently smaller than the maximum rated current value in order to suppress the heat generation of the light emitting element 21B. In the present embodiment, the maximum rated forward current of the light emitting element 21B arranged on the substrate 21A is 180 mA (using Nichia NFSW7575DT), and the rated current value is 45 mA (25% of the maximum rated current value) according to the specifications of the lighting fixture 1. It is set. For example, in order to use without a radiation fin, it is preferable to set it to 35% or less of the maximum rated current value as in this embodiment. Thus, by supplying a current sufficiently smaller than the maximum rated current value to the light emitting element unit 21, it is not necessary to support the light emitting element unit 21 on the heat dissipation member, and the light emitting element unit 21 can be supported on the resin material. As a result, there is no need to form a case for housing the light emitting element unit 21 with a heat radiating member and a globe, so that the case is a glove case in which the light source support portion 12A and the globe portion 12B for supporting the light emitting element unit 21 are integrated. 10 can be used.
Furthermore, since the light emitting element unit 21 includes the plurality of light emitting elements 21B, it is possible to compensate for the brightness that is obtained by reducing the output of the current to suppress heat dissipation.

The globe body 11 is integrally provided with a light source support portion 12A that supports the light source portion 20 and a globe portion 12B that transmits light from the light source portion 20. The light source support portion 12 </ b> A is located in a portion corresponding to approximately the upper half of the globe body 11, and the globe portion 12 </ b> B is located in a portion corresponding to the approximately half periphery of the lower portion of the globe body 11. The globe body 11 is two-color molded using a light-shielding resin material for the light source support portion 12A and a light-transmitting resin material for the globe portion 12B. The glove body 11 is airtight except for the openings 11A at both ends.
Thus, since the globe body 11 is formed by integrally forming the light source support portion 12A and the globe portion 12B, a sealing member is not required between the light source support portion 12A and the globe portion 12B, and waterproofing is achieved. The number of parts can be reduced while ensuring. In addition, the light source support portion 12A and the globe portion 12B can be easily formed in a watertight manner by two-color molding. Since the light source support 12A is made opaque, light outside the design irradiation range from the light emitting element unit 21 can be shielded by the non-transparent light source support 12A.

5A and 5B are diagrams showing the end cover 13, in which FIG. 5A is a side view, FIG. 5B is a front view, and FIG. 5C is a bottom view. 6A and 6B are diagrams illustrating an end portion of the light source unit 5, in which FIG. 6A is a plan view and FIG. 6B is a longitudinal sectional view.
The end cover 13 is a cover that covers the light source unit 20 (FIG. 4) at both ends of the globe body 11, and as shown in FIG. 5, similarly to the globe body 11, the light source storage unit 14 </ b> A that stores the light source unit 20. The light-transmitting part (globe part) 14B that transmits the light from the light source part 20 is integrally provided. The light source accommodating portion 14 </ b> A is located in the upper half periphery of the end cover 13, and the light transmitting portion 14 </ b> B is located in the lower half periphery of the end cover 13. Thus, by providing the translucent portion 14B on the end cover 13, light can be emitted from both ends of the glove case 10, so that seamless illumination can be realized even when the end portions are connected to each other.

  Here, when the entire end cover 13 is a light-transmitting part, the seal member 36 disposed around the glove body 11 is visually recognized from the outside, and the design of the lighting fixture 1 is deteriorated. Even if a transparent material is used for the sealing member 36, a difference in light transmittance occurs between the light transmitting portion 14B. In addition, when the end cover 13 is attached, the position of the seal member 36 may be shifted or wrinkles may be shifted. In this case, the light emission range is also changed. May be damaged.

  Therefore, in the present embodiment, as shown in FIGS. 5 and 6, the end cover 13 is integrally provided with a light shielding portion 14 </ b> C at a place where the seal member 36 is disposed. The light shielding part 14C is formed in a band shape along the circumferential direction of the light transmitting part 14B, and the end part of the end cover 13 including the end face 13B is a light transmitting part 14B. The sealing member 36 can be concealed by the light shielding part 14C, and the light shielding part can be limited to the light transmitting part 14B to restrict the light shielding range to a certain light shielding part 14C. Therefore, the design of the lighting fixture 1 can be improved. Further, by emitting light from the end of the glove case 10, it can be seen that the lighting fixture 1 is lit from a distance in the longitudinal direction of the glove case 10.

  The end cover 13 is two-color molded using a light-transmitting resin material for the light source housing portion 14A and the light-shielding portion 14C and using a light-shielding resin material for the light-transmitting portion 14B, and is airtight except for the open portion 13A. ing. As described above, the light source housing portion 14A, the light transmitting portion 14B, and the light shielding portion 14C can be easily formed integrally by two-color molding, and a seal member is provided between the light source housing portion 14A, the light transmitting portion 14B, and the light shielding portion 14C. It becomes unnecessary and can reduce the number of parts while ensuring waterproofness.

Next, the fixing structure of the light source unit 20 and the light source unit 5 will be described in detail.
FIG. 7 is a schematic diagram showing the light source unit 20.
As shown in FIG. 7, the light source unit 20 includes a light source fixture 23 made of metal, for example, for attaching the light emitting element unit 21 to the glove case 10. A support 15 that supports the light source fixture 23 is formed on the inner surface of the globe body 11, and the support 15 is a pair of stepped rails that extend in the longitudinal direction of the globe body 11. It is provided facing the hand direction. A light source fixture 23 is placed on and supported by the support 15. The light emitting element unit 21 is inserted from the opening 11 </ b> A of the globe body 11 so that the light source fixture 23 slides on the support 15. Thus, since the support body 15 is configured to support the light emitting element unit 21 so as to be slidable, the support and alignment of the light emitting element unit 21 can be facilitated.

Above the support 15, a guide portion 17 that guides the light source fixture 23 is provided substantially parallel to the support 15. The support body 15 and the guide part 17 are formed integrally with the globe body 11 at the edge of the light source support part 12A. Thereby, the support body 15 and the guide part 17 can be formed easily compared with the case where the support body 15 and the guide part 17 are formed separately from the glove body 11.
Further, the light source fixture 23 includes a concave portion 23A whose center is recessed from the edge to the back side (opposite side to the emission side), and the light emitting element unit 21 is attached to the concave portion 23A. Thereby, compared with the case where the light source fixture 23 is formed in a flat plate shape, light outside the design irradiation range from the light emitting element unit 21 can be shielded by the light-transmissive light source support portion 12A.

  As shown in FIG. 6, the light source fixture 23 is formed longer than the globe main body 11, and when the light source fixture 23 is inserted into the globe main body 11, both end portions 23 </ b> B in the longitudinal direction of the light source fixture 23 are in the globe main body 11. It is located outside the opening 11A. Cylindrical spacers 24 are screwed to both ends 23B of the light source fixture 23, and when the end cover 13 is fitted to both ends of the globe body 11 via the seal member 36, the screw holes 24A and end portions of the spacer 24 are fitted. The position of the cover 13 with the mounting hole 13C coincides. The light source fixture 23 is screwed and fixed to the end cover 13 by inserting the screw 25 into the mounting hole 13C and screwing it into the screw hole 24A.

A fixing hole 13D for fixing the power supply device mounting plate 31 is formed on the open portion 13A side of the end cover 13, and the power supply device mounting plate 31 positions the screw hole 31B and the fixing hole 13D of the end cover 13. Are fixed with screws.
A fixing hole 19 for fixing the light source unit 5 to the instrument body 3 is formed on the end surface 13B side of the end cover 13, and the light source unit 5 is fixed to the fixing part 3 </ b> C of the instrument body 3 through the fixing hole 19. (FIG. 3) is fixed with screws.

  As described above, according to the present embodiment, the configuration includes the glove case 10 in which the light source support portion 12A that supports the light emitting element unit 21 and the globe portion 12B that transmits the light of the light emitting element unit 21 are integrally formed. did. With this configuration, a seal member is not required between the light source support portion 12A and the globe portion 12B, and the number of components can be reduced while ensuring waterproofness.

  Further, according to the present embodiment, the glove case 10 is configured by integrally forming the light-transmissive light source support portion 12A and the light-transmissive glove portion 12B. The light outside the design irradiation range from the light emitting element unit 21 can be shielded by the support portion 12A.

  In addition, according to the present embodiment, the light emitting element unit 21 is a linear light source, and the glove case 10 is formed in a cylindrical shape with at least one end having an opening 11A, and an end that closes the opening. And a part cover 13. With this configuration, for example, the opening 11A can be formed to be relatively small as compared with the case where the opening is formed between the support portion of the globe body 11 and the globe portion 12B, so that waterproofness can be reliably ensured.

  Moreover, according to this embodiment, it was set as the structure by which the support body 15 which supports the light emitting element unit 21 inserted from 11 A of opening parts in the inner surface of the glove case 10 so that sliding was possible was formed. With this configuration, the light emitting element unit 21 can be easily supported and aligned.

  In addition, according to the present embodiment, since the light emitting element unit 21 includes the plurality of light emitting elements 21B, even if the light emitting element 21B is lit with a current sufficiently smaller than the maximum rated current value in order to suppress heat dissipation, the output of current is performed. The lowered brightness can be compensated.

However, the above-described embodiment is an aspect of the present invention, and it is needless to say that the embodiment can be appropriately changed without departing from the gist of the present invention.
For example, in the above-described embodiment, the lighting fixture 1 has been described as a so-called trough-type lighting fixture in which the light source unit 5 is attached to the fixture main body 3, but a so-called bracket-type lighting fixture having a variable angle function may be used. .

8A and 8B are diagrams showing a lighting apparatus according to a modification, in which FIG. 8A is a front view, FIG. 8B is a bottom view, FIG. 8C is a plan view, and FIG. FIG. FIG. 9 is an explanatory view showing the angle adjustment of the lighting fixture.
This type of luminaire is mainly used as a luminaire that illuminates a signboard, a wall surface of a building, and the like. The lighting fixture 100 according to the modification is configured by attaching the light source unit 5 to the fixture main body 103. As shown in FIG. 8, the instrument main body 103 is formed in a long bowl shape with one lower surface open, and is attached to an installation surface (not shown) via a mounting plate 106 extending in the longitudinal direction of the instrument main body 103. The instrument body 103 is rotatably supported at both ends of the mounting plate 106, and a movable adjustment nut 107 is provided at one end of the mounting plate 106. By loosening the movable adjustment nut 107, the orientation of the instrument body 103 can be adjusted as shown in FIG. In the present embodiment, the movable plate is configured to be movable by 30 ° in front of the mounting plate 106 and 105 ° in the back side opposite to the mounting plate 106, but the movable range is not limited to this. In addition, in the lighting fixture 100 shown in FIG.8 and FIG.9, the same code | symbol is attached | subjected to the same part as the lighting fixture 1, and description is abbreviate | omitted.

In the above-described embodiment, the light shielding portion 14C of the end cover 13 is formed using a light shielding resin material. However, the end cover 13 colors the surface of the portion corresponding to the light-shielding portion 14C with the light-shielding paint on the surface of the light-transmitting resin material, and transmits light from the non-colored portion corresponding to the light-transmitting portion 14B. It is good also as a structure which irradiates.
Similarly, in the above-described embodiment, the globe body 11 is two-color molded using a light-shielding resin material for the light source support portion 12A and a light-transmitting resin material for the globe portion 12B. The configuration of 11 is not limited to this. For example, the globe body 11 colors the surface of the portion corresponding to the light source support portion 12A with the light-shielding paint on the surface of the translucent resin material, and irradiates light from the non-colored portion corresponding to the globe portion 12B. It is good also as a structure.

In the above-described embodiment, packing is used for the seal member 36. However, the seal member 36 is not limited to this, and may be, for example, caulking.
In the above-described embodiment, the end cover 13 includes the light shielding portion 14 </ b> C that covers the seal member 36, but the end cover 13 may be entirely formed of a light transmissive member. In this case, it is desirable to use a highly translucent member for the seal member.

Moreover, in the above-mentioned embodiment, although both ends of the glove body 11 are the opening portions 11A, only one end may be the opening portion 11A.
Moreover, in the above-mentioned embodiment, although the glove body 11 and the end cover 13 were formed by two-color molding, the manufacturing method of the glove body 11 and the end cover 13 is two-color as long as it can be manufactured in a watertight manner. It is not limited to molding.

  In the above-described embodiment, the light emitting element unit 21 is configured as a linear light source in which a plurality of light emitting elements 21B are arranged on the substrate 21A. However, the shape of the light emitting element unit 21 is not limited to this, and There may be one light emitting element 21B. In this case, the glove case 10 is not limited to a long cylindrical shape, and can be appropriately changed according to the shape of the light emitting element unit 21 and the like.

In the above-described embodiment, a current smaller than the rated current is supplied to the light emitting element 21B. However, when the heat generation of the light emitting element 21B is small, the rated current may be supplied to the light emitting element 21B.
Moreover, although LED was used for the light source in the above-mentioned embodiment, a light source is not limited to this, For example, other light emitting elements, such as organic EL, may be sufficient.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 10 Globe case 11A Opening part 12A Light source support part 12B Globe part 13 End part cover (blocking cover)
DESCRIPTION OF SYMBOLS 15 Support body 21 Light emitting element unit 21B Light emitting element 36 Seal member

Claims (5)

In a lighting fixture including a light emitting element unit,
A glove case integrally forming a light source support part for supporting the light emitting element unit and a glove part for transmitting the light of the light emitting element unit;
A lighting fixture comprising the light emitting element unit housed in the glove case.   The lighting fixture according to claim 1, wherein the glove case is configured by integrally forming the light-transmissive light source support portion and the translucent glove portion. The light emitting element unit is a linear light source,
The glove case is
A glove body formed into a cylindrical shape and having at least one end as an opening;
A closing cover for closing the opening;
The lighting fixture according to claim 1, further comprising:   The lighting fixture according to claim 3, wherein a support body that slidably supports the light emitting element unit inserted from the opening is formed on an inner surface of the glove case.   The lighting device according to claim 1, wherein the light emitting element unit includes a plurality of light emitting elements.

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