WO2016006447A1

WO2016006447A1 - Road lighting fixture

Info

Publication number: WO2016006447A1
Application number: PCT/JP2015/068190
Authority: WO
Inventors: 近藤　俊幸; 岡村　武昭; 庸介水木
Original assignee: スタンレー電気株式会社
Priority date: 2014-07-11
Filing date: 2015-06-24
Publication date: 2016-01-14
Also published as: JP2016021279A

Abstract

This road lighting fixture (1) is provided with a lighting module (5) and a main frame (2) that supports the lighting module (5). The main frame (2) is formed by vertically combining an upper frame member (2U) having, over substantially the whole length, an upper backbone portion (21U) that opens to the bottom, and a lower frame member (2L) having, over substantially the whole length, a lower backbone portion (21L) that opens to the top, and has a cylindrical backbone portion (21) formed by vertically combining the upper backbone portion (21U) of the upper frame member (2U) and the lower backbone portion (21L) of the lower frame member (2L).

Description

Road lighting

The present invention relates to a road illumination lamp.

2. Description of the Related Art Conventionally, a road illumination lamp that is attached to, for example, an upper end of a pole and illuminates a road from above is known (see, for example, Patent Documents 1 and 2).
In such road illumination lamps, aluminum die casts are generally used as frame parts (frame parts) for supporting contents such as a light source from the viewpoint of strength and heat dissipation.

JP 2007-242258 A JP 2011-210469 A

However, since frame parts made of simple aluminum die-casting are generally thick, the entire lamp tends to be heavy. When the weight of the lamp is heavy, handling at the time of manufacture and installation becomes difficult, and there are also concerns about problems such as increased vibration in the pole mounted state.
Therefore, it has been desired to reduce the weight while maintaining the strength required for the frame parts.

This invention was made in order to solve the said subject, and it aims at provision of the road illumination lamp which can aim at weight reduction compared with the past, maintaining the intensity | strength required for frame components.

In order to achieve the above object, the invention described in claim 1
A road illumination lamp comprising a lighting module and a frame part that supports the lighting module,
The frame component is
An upper frame member that has an upper skeleton portion that opens to the lower side over substantially the entire length, and a lower frame member that has the lower skeleton portion that opens to the upper side over almost the entire length are combined vertically,
The upper skeleton part of the upper frame member and the lower skeleton part of the lower frame member have a cylindrical skeleton part that is vertically combined.

The invention according to claim 2 is the road illumination lamp according to claim 1,
The illumination module includes an LED substrate on which a plurality of LEDs are mounted, and a heat dissipation unit to which the LED substrate is fixed.
The heat dissipation unit is configured by fixing a plurality of fin plates to a flat bottom plate,
Each of the plurality of fin plates is formed by forming an aluminum plate into a U-shape in which two fins are connected by a connecting portion at one end, and the connecting portion is fixed by caulking to the bottom plate. It is characterized by.

The invention according to claim 3 is the road illumination lamp according to claim 2,
Each of the plurality of fin plates is characterized in that the connecting portion is caulked and fixed to the bottom plate in at least two places.

The invention according to claim 4 is the road illumination lamp according to any one of claims 1 to 3,
The frame component has a module support that supports the lighting module;
The module support part is provided so as to protrude laterally from the skeleton part.

According to the first aspect of the present invention, the frame component has an upper frame member having an upper skeleton portion that opens to the lower side over substantially the entire length, and a lower portion that has the lower skeleton portion that opens to the upper side over the substantially entire length. It is configured by combining a frame member with the upper and lower sides, and has a cylindrical skeleton portion in which the upper skeleton portion and the lower skeleton portion are vertically combined.
Thereby, since the frame part of the frame component for maintaining the required strength can be made hollow, the weight can be reduced as compared with the conventional frame component made of aluminum die cast. Therefore, it is possible to reduce the weight as compared with the prior art while maintaining the strength required for the frame parts.

According to invention of Claim 2, the heat radiating unit which fixes LED board among illumination modules is comprised by fixing a some fin board to a flat bottom plate, and each of a plurality of fin boards, The aluminum plate is formed into a sheet metal shape, and two fins are formed in a U shape connected by a connecting portion at one end, and the connecting portion is fixed to the bottom plate by caulking.
Thereby, each fin of a heat radiating unit can be formed much thinner compared with the conventional thing which was an extrusion molded product, and the weight reduction of the said heat radiating unit and by extension, an illumination module can be achieved. Therefore, the required strength of the frame component that supports the lighting module can be reduced, and the frame component can be further reduced in weight.

It is a figure which shows the road illumination lamp with the state attached to the pole. It is a perspective view of a road illumination lamp. It is a perspective view of the road illumination lamp with the cover removed. It is a top view of a main frame. It is a disassembled perspective view of a main frame. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4. FIG. 5 is a sectional view taken along line BB in FIG. 4. It is a top view of an illumination module. It is a side view of a lighting module. It is a disassembled perspective view of the thermal radiation unit in an illumination module. It is a fragmentary sectional view of the thermal radiation unit which shows the state of the baseplate and fin board before crimping. It is a fragmentary sectional view of the thermal radiation unit which shows the state of the baseplate and fin board after crimping.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a state in which the road illumination lamp 1 according to the present embodiment is attached to a pole 100 described later, FIG. 2 is a perspective view of the road illumination lamp 1, and FIG. It is a perspective view of the road illumination lamp 1 of the state which was in a state. 4 and 5 are a plan view and an exploded perspective view of the main frame 2 of the road illumination lamp 1, and FIGS. 6A and 6B are cross-sectional views taken along lines AA and BB in FIG. It is.

As shown in FIG. 1, the road illumination lamp 1 is provided at the upper end of a two-lamp pole 100, for example, and illuminates a road on which a vehicle (automobile) (not shown) travels from above.
The pole 100 that supports the road illumination lamp 1 is formed in a Y shape with its upper portion branched, and the two booms 110 that are the branched portions are inclined obliquely upward, respectively. The road illumination lamp 1 is attached to each front end portion downward.
In addition, although the road illumination lamp 1 is arrange | positioned in the state inclined along the boom 110, below, suppose that it is arrange | positioned substantially horizontal for easy description.

Specifically, as shown in FIGS. 2 and 3, the road illumination lamp 1 is formed in a slightly long flat shape, and its longitudinal direction X is substantially along the width direction of the road, and the longitudinal direction X Is arranged so that the width direction Y orthogonal to the vehicle travel direction.
The road illumination lamp 1 includes a main frame 2 and a cover 3, two

power supply units

4 and 4, and two illumination modules 5 in a lamp chamber formed by the main frame 2 and the cover 3. , 5 are accommodated.

The main frame 2 is a component that mainly supports the two

power supply units

4 and 4 and the two

illumination modules

5 and 5, and as shown in FIGS. 4 and 5, the upper frame member 2U and the lower frame member 2L are vertically moved. It is configured to overlap. The upper frame member 2U and the lower frame member 2L are formed by sheet metal molding mainly of a thin (about 1.5 mm in the present embodiment) aluminum plate, and are formed in substantially the same shape.
It should be noted that almost all the constituent parts of the main frame 2 described below are configured by combining corresponding portions respectively provided on the upper frame member 2U and the lower frame member 2L. Therefore, of the components, the portion provided on the upper frame member 2U is given a prefix “upper” and the suffix “U”, and the portion provided on the lower frame member 2L is “lower”. Prefix and “L” suffix.

The main frame 2 has a skeleton 21 that retains the strength required for the main frame 2. The skeleton part 21 is formed over substantially the entire length of the main frame 2 along the longitudinal direction X, and standing walls 25 for attaching the cover 3 are respectively provided on both ends thereof.
One end side (hereinafter referred to as “base end side”) in the longitudinal direction X of the skeleton portion 21 is a pole fixing portion 22 to which the boom 110 of the pole 100 is fixed. The pole fixing portion 22 has a V-shaped pole receiving groove 221 along the longitudinal direction X, and has a pole abutting portion 222 at the end on the tip side. The boom 110 of the pole 100 is inserted into an insertion hole 25a formed in the upright wall 25 on the proximal end side, and is fitted in the pole receiving groove 221 with the front end face being abutted against the pole abutting portion 222. The

U-shaped bolts

61 and 61 and nuts (not shown) are fastened and fixed to the pole fixing portion 22 (see FIG. 3).
On the other hand, in the skeleton part 21, the part on the other end side in the longitudinal direction X (hereinafter referred to as “tip side”) with respect to the pole fixing part 22 is a main skeleton formed to be slightly narrower than the pole fixing part 22. It becomes part 23. The main skeleton portion 23 is a portion that supports the two

power supply units

4 and 4 and the two

illumination modules

5 and 5.

As shown in FIG. 6A, the skeleton portion 21 is configured by vertically combining an upper skeleton portion 21U of the upper frame member 2U and a lower skeleton portion 21L of the lower frame member 2L. Specifically, the upper frame portion 21U of the upper frame member 2U is formed in a U-shaped cross section that opens downward, and the lower frame portion 21L of the lower frame member 2L is formed in a U-shaped cross section that opens upward. Has been. Then, by combining the upper frame member 2U and the lower frame member 2L with the upper skeleton portion 21U and the lower skeleton portion 21L facing each other, the skeleton portion 21 formed in a cylindrical shape with a rectangular cross section is configured. .
However, as shown in FIG. 6B, in the pole fixing portion 22 of the skeleton portion 21, a concave portion 223 (223U, 223L) is partially provided in the center in the width direction Y in the upper frame member 2U and the lower frame member 2L, respectively. As a result, the cylindrical portion is partially divided at both ends in the width direction Y. The recess 223 is for reinforcing the support strength of the pole 100 in the pole fixing portion 22 by the side wall of the recess 223 erected in the vertical direction.
Further, the upper frame member 2U and the lower frame member 2L have fixing flange portions 26 (26U, 26L) projecting in a hook shape from the periphery of the skeleton portion 21, and the flange portions 26 are overlapped with each other. In this state, the flange portions 26 are fixed to each other by spot joining (for example, riveting). Note that the flange portion 26 does not have to be a simple flat plate shape. For example, the lower frame member 2L may be hemmed to sandwich the upper frame member 2U.

As shown in FIGS. 3 to 5, two

module support portions

24, 24 that support the two

illumination modules

5, 5 are laterally provided on both sides of the main frame 2 in the width direction Y of the main frame 2. It is provided to overhang. However, one of the two

module support portions

24, 24 is provided in a state inclined slightly upward toward the front end in the width direction Y. Each module support portion 24 is formed in a frame shape that supports only the peripheral portion of the light emitting portion so that the light emitting portion (lens plate 53 described later) of the lighting module 5 to be supported is exposed downward.

The cover 3 is a lid part of the road illumination lamp 1 and is formed of a thin aluminum plate. The cover 3 is attached to the two standing

walls

25 and 25 of the main frame 2 at both ends in the longitudinal direction X. In addition, an opening is formed between the cover 3 and the main frame 2 at both sides in the width direction Y from each standing wall 25, and the opening serves as a ventilation hole for radiating heat from the two

illumination modules

5 and 5. Yes.

The two

power supply units

4 and 4 are arranged side by side in the vertical direction with a plurality of spacers 41 interposed therebetween, and are fixed to the main skeleton portion 23 of the main frame 2. These two

power supply units

4 and 4 correspond to the two

illumination modules

5 and 5, and are electrically connected so as to individually supply power to the two

illumination modules

5 and 5.

The two

illumination modules

5 and 5 are light source portions of the road illumination lamp 1 and are supported by the two

module support portions

24 and 24 of the main frame 2.
7A and 7B are a plan view and a side view of the illumination module 5, and FIG. 8 is an exploded perspective view of a heat dissipation unit 54 described later in the illumination module 5.
As shown in FIGS. 7A and 7B, each illumination module 5 includes two LED (light emitting diode)

units

51 and 51 and a heat dissipation unit 54.

Among these, the two

LED units

51 and 51 are each comprised from the LED board 52 in which several LED520, ... was mounted, and the lens board 53 for controlling light distribution from several LED520, .... Yes. These two

LED units

51, 51 are fixed to the bottom plate 541 by a plurality of clips 55,... In a state of being juxtaposed along the longitudinal direction on the surface of the bottom plate 541 of the heat dissipation unit 54.

On the other hand, as shown in FIG. 8, the heat radiating unit 54 is configured by fixing a plurality of fin plates 542,... To the back surface of a long bottom plate 541.
The bottom plate 541 is formed of a thin aluminum flat plate. In the bottom plate 541, a plurality of locking holes 541a,... For locking the plurality of clips 55,.
Each fin plate 542 is a thin (about 0.5 mm in this embodiment) aluminum plate formed into a U-shaped sheet metal, and is fixed to the bottom plate 541 with the opening side facing away from the bottom plate 541. Yes. That is, each fin plate 542 has a shape in which two

fins

542a and 542a having a predetermined interval are connected by the connecting portion 542b therebetween. The plurality of fin plates 542,... Are arranged along the longitudinal direction of the bottom plate 541 so that two

adjacent fins

542a, 542a are at the predetermined interval. However, in the longitudinal center of the bottom plate 541 located between the two

LED units

51, 51, a slightly wider gap is provided between the two

adjacent fin plates

542, 542.

The bottom plate 541 and the fin plates 542 are fixed by so-called dowel caulking.
9A and 9B are partial cross-sectional views of the heat dissipation unit 54 showing the state of the bottom plate 541 and the fin plate 542 before and after crimping.
Specifically, as shown in FIG. 9A, first, the bottom plate 541 and the fin plates 542 are fixedly protruded to the back surface side of the bottom plate 541 in the pilot holes 542c formed in the connecting portion 542b of the fin plate 542. A dowel (half blank) 541b is inserted. Then, as shown in FIG. 9B, the head of the dowel 541b is crushed with a jig (not shown), so that the fin plate 542 and the bottom plate 541 are caulked and fixed.
Here, the number of crimps between each fin plate 542 and the bottom plate 541 is preferably at least two in terms of the reliability of fixing between the fin plate 542 and the bottom plate 541 and the heat radiation performance. Only two places on both sides of the plate 542).
The thickness of the bottom plate 541 is preferably the maximum thickness that can be formed by the dowel 541b, and is about 1.2 mm in this embodiment.
Moreover, it is preferable that the width | variety between the two

fins

542a and 542a in the fin board 542 is the minimum width | variety which can be crimped from the point of heat dissipation performance, and is about 5 mm in this embodiment. As described above, the interval between the two

adjacent fin plates

542 and 542 is matched with the value of the width.

As described above, according to the road illumination lamp 1 of the present embodiment, the main frame 2 has the upper frame member 2U having the upper frame portion 21U that opens downward and the lower frame that opens upward. The lower frame member 2L having the portion 21L over almost the entire length is configured in combination with the upper and lower parts, and the cylindrical skeleton part 21 is formed by combining the upper skeleton part 21U and the lower skeleton part 21L in the vertical direction. is doing.
Thereby, since the skeleton part 21 of the main frame 2 for maintaining a required strength can be made hollow, it is possible to reduce the weight as compared with the conventional frame parts made of aluminum die cast. Therefore, the main frame 2 can be reduced in weight as compared with the conventional one while maintaining the necessary strength.

Moreover, the heat radiating unit 54 which fixes the LED board 52 among the illumination modules 5 is comprised by fixing several fin board 542 ... to the flat bottom board 541, and each of several fin board 542 ... is each. The aluminum plate is formed into a sheet metal, and the two

fins

542a and 542a are formed in a U shape connected by a connecting portion 542b at one end, and the connecting portion 542b is fixed to the bottom plate 541 by caulking.
Thereby, each fin 542a of the heat radiating unit 54 can be formed much thinner than the conventional one that was an extrusion-molded product, and the heat radiating unit 54 and thus the lighting module 5 can be reduced in weight. . Therefore, the required strength of the main frame 2 that supports the illumination module 5 can be reduced, and the main frame 2 can be further reduced in weight.

Note that embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention.

For example, in the above embodiment, the road illumination lamp 1 is provided with the two power supply units 4 and the illumination module 5, but these quantities are not particularly limited.

Further, if the upper skeleton part 21U of the upper frame member 2U and the lower skeleton part 21L of the lower frame member 2L are combined vertically to form a cylindrical (hollow) skeleton part, the cross-sectional shape thereof is It does not have to be U-shaped, and may be L-shaped, for example.

Moreover, although the road illumination lamp 1 is supposed to be attached to the pole 100, the road illumination lamp according to the present invention is not limited to the one attached to the pole (post) as long as it can illuminate the road from above. For example, it may be fixed to a wall or ceiling in the tunnel.

Industrial applicability

As described above, the road illumination lamp according to the present invention is useful for reducing the weight while maintaining the strength required for the frame parts.

1 Road lighting fixture 2 Main frame (frame parts)
2L Lower frame member 2U Upper frame member 21 Frame portion 21U Upper frame portion 21L Lower frame portion 22 Pole fixing portion 23 Main frame portion 24 Module support portion 25 Standing wall 26 Flange portion 3 Cover 4 Power supply unit 41 Spacer 5 Lighting module 51 LED unit 52 LED board 520 LED
53 Lens plate 54 Heat radiation unit 541 Bottom plate 541b Dowel 542 Fin plate 542a Fin

542b Connecting portion

542c Pilot hole 55 Clip 100 Pole 110 Boom X Longitudinal direction Y Width direction

Claims

A road illumination lamp comprising a lighting module and a frame part that supports the lighting module,
The frame component is
An upper frame member that has an upper skeleton portion that opens to the lower side over substantially the entire length, and a lower frame member that has the lower skeleton portion that opens to the upper side over almost the entire length are combined vertically,
The road illumination lamp characterized by having the cylindrical frame | skeleton part which the said upper frame part of the said upper frame member and the said lower frame part of the said lower frame member combined vertically.
The illumination module includes an LED substrate on which a plurality of LEDs are mounted, and a heat dissipation unit to which the LED substrate is fixed.
The heat dissipation unit is configured by fixing a plurality of fin plates to a flat bottom plate,
Each of the plurality of fin plates is formed by forming an aluminum plate into a U-shape in which two fins are connected by a connecting portion at one end, and the connecting portion is fixed by caulking to the bottom plate. The road illumination lamp according to claim 1, wherein the road illumination lamp is provided.
The road illumination lamp according to claim 2, wherein each of the plurality of fin plates is caulked and fixed to the bottom plate at at least two of the connecting portions.
The frame component has a module support that supports the lighting module;
The road illumination lamp according to any one of claims 1 to 3, wherein the module support portion is provided so as to protrude laterally from the skeleton portion.