JP5435800B2 - Road lighting - Google Patents

Description

  The present invention relates to a road lighting device.

  2. Description of the Related Art Conventionally, a road lighting device (road light) using a lamp generally has a portion where a power block (stabilizer) is arranged and a portion where a lamp is arranged with substantially the same thickness. It was.

JP 2007-242258 A (Claim 1, FIG. 1, FIG. 3, FIG. 4, paragraphs 0012 to 0013, 0015)

  However, there has been a problem that the conventional road lighting device is increased in size and weight. Therefore, it is desired to reduce the weight of road lighting equipment.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a road lighting device that can be reduced in weight.

A road lighting device according to the present invention includes a main body portion supported by a support member, an upper lid portion covering an upper portion of the main body portion, an LED (LIGHT EMITTING DIODE) light emitting portion and a power source portion fixed to the lower side of the upper lid portion And a panel that is provided on the lower side of the main body part and transmits light from the LED light emitting part, and a housing part that is provided so as to protrude below the main body part in order to accommodate the power source part. thickness of the portion emitting portion is provided is rather smaller than the thickness of the portion power supply unit is provided, connection space for connecting wires from outside the power supply unit is provided on the support member side of the main body In addition, the connection space can be opened and closed by the lid member .

Here, the outer surface of the housing portion can be configured to have a function of controlling light from the panel.
Moreover, it can be set as the structure by which the power supply part is arrange | positioned at the support member side.

  According to the road lighting apparatus of the present invention, since the thickness dimension of the part where the LED light emitting part is provided is smaller than the thickness dimension of the part where the power supply part is provided, the overall size and weight can be reduced.

The exploded view which shows the lighting fixture for roads of 1st Embodiment which concerns on this invention. FIG. 1 is an assembly diagram illustrating a road lighting apparatus according to a first embodiment of the present invention. Sectional drawing which shows the light control function part of 1st Embodiment which concerns on this invention The figure which shows the thickness of the site | part which provided the power supply block of 1st Embodiment which concerns on this invention, and the thickness of the site | part which provided the LED light emission part. The figure which shows the omission part in the LED light emission part of 1st Embodiment which concerns on this invention. The figure which shows the state which open | released the cover member of 1st Embodiment which concerns on this invention. The figure which shows the attachment attitude | position of the lighting fixture for roads of 1st Embodiment which concerns on this invention. 8A is a view showing the heat dissipating fin according to the first embodiment of the present invention, FIG. 8B is a view showing the draining direction and the heat dissipating direction, and FIG. 8C is a side view of FIG. 8B. The figure which shows the height of the radiation fin of 1st Embodiment which concerns on this invention The figure which shows the light control function part of 2nd Embodiment which concerns on this invention. The figure which shows the light control function part of 3rd Embodiment which concerns on this invention.

Hereinafter, a lighting device for a road according to an embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is an exploded view of a road lighting device 1 according to a first embodiment of the present invention, and FIG. 2 is an assembly view. This road lighting device 1 is provided on a main body 12 that is attached to and supported by an arm 11 that is a support member, an upper lid 13 that covers the upper portion of the main body 12, and a lower side of the upper lid 13. The LED light emitting unit 14, the power source block 15 that is a power source unit, the light emitting panel 16 that is provided on the lower side of the main body unit 12 and transmits the light from the LED light emitting unit 14, and the main body unit for housing the power source block 15 12, and a power supply block housing portion 17 provided so as to project downward from 12.

  As will be described in detail below, the thickness dimension T1 (see FIG. 4) of the part where the LED light emitting unit 14 is provided is configured to be smaller than the thickness dimension T2 of the part where the power supply block 15 is provided. . Further, a light control function unit 21 having a function of controlling light from the light emitting panel 16 is provided on the outer surface of the power supply block housing unit 17. The power supply block 15 is disposed on the arm 11 side. Further, a connection space 18 which is a connection space for connecting an electric wire from the outside to the power supply block 15 is provided on the arm 11 side in the main body 12, and this connection space 18 is opened and closed by a lid member 19. Is done.

  A plurality of radiating fins 23 (see FIG. 6) are provided on the upper portion of the upper lid portion 13, and the grooves 23 a between the radiating fins 23 are inclined downward toward the edge of the upper lid portion 13. Further, the main body portion 12 can be arranged so as to be inclined downward toward the arm 11, and the continuous direction of the radiating fins 23 is along the direction toward the arm 11. Further, the LED light emitting unit 14 is disposed in a direction away from the arm 11.

  Next, each of the above components will be described in detail. A connection space 18 and a lid member 19 that opens and closes the connection space 18 are provided on the opposite side of the main body 12 from the light emitting panel 16. An arm insertion part 20 for inserting the arm 11 is provided on the lower side of the connection space 18.

  The power supply block accommodating portion 17 and the power supply block 15 accommodated therein are provided in the vicinity of the arm insertion portion 20. Thereby, the power supply block 15 is arrange | positioned at the arm 11 side. The power supply block 15 may be arranged on the opposite side of the arm 11. Further, as shown in FIG. 3, a light control function unit 21 having a light control function for controlling light from the light emitting panel 16 is provided on the outer surface of the power supply block housing unit 17. Examples of the light control function include light reflection, absorption, and oblique cut.

  In the present embodiment, the light control function unit 21 has an inclined surface 21 a that is provided on the outer surface of the end portion on the light emitting panel 16 side in the power supply block housing portion 17 and inclines in a direction away from the light emitting panel 16 toward the lower side. Yes. The light from the light emitting panel 16 can be controlled by changing the shape of the inclined surface 21a, painting, and the like.

  In the present embodiment, as shown in FIG. 3, the inclined surface 21a does not reflect the light from the light emitting panel 16, that is, the light is cut so that the light from the light emitting panel 16 and the reflected light from the inclined surface 21a. Are configured so as not to interfere with each other. Here, by changing the inclination angle of the inclined surface 21a or the coating specifications of the inclined surface 21a, it becomes possible to control the light as necessary, and a desired light distribution can be obtained.

  In addition, as shown in FIG. 4, the road lighting device 1 is configured such that the thickness T1 of the portion where the LED light emitting unit 14 is provided is smaller than the thickness T2 of the portion where the power supply block 15 is provided. Has been. Thereby, as shown in FIG. 5, the omission range 27 surrounded by the broken line on the lower side of the light-emitting panel 16 can be omitted, and a significant reduction in size and weight can be achieved.

  Further, as shown in FIG. 6, a latch portion 22 for opening and closing the lid member 19 is provided between the lid member 19 and the main body portion 12. The connection space 18 can be opened by opening the lid member 19 by the latch portion 22.

  A large number of heat dissipating fins 23 are provided on the upper surface of the upper lid portion 13 over the entire surface. These radiating fins 23 are formed so as to be inclined downward toward the edge of the upper lid portion 13. In the present embodiment, the radiating fins 23 are continuous (stretched) along the longitudinal direction of the upper lid portion 13 and are arranged in parallel to each other.

  As shown in FIG. 7, the road lighting device 1 includes the arm 11 inserted into the arm insertion portion 20 of the main body 12, the arm 11 side on the lower side and the LED light emitting portion 14 side on the horizontal mounting surface 24. In such a manner, it is attached with an inclination at a predetermined angle.

  Thereby, the groove 23 a between the heat radiating fins 23 has a downward slope from the LED light emitting part 14 side of the upper lid part 13 to the arm 11 side. As a result, as shown in FIGS. 8A to 8C, moisture such as rainwater that has fallen on the upper lid portion 13 has a drainage direction 25 indicated by a solid arrow in the groove 23 a between the radiation fins 23. To be drained. In addition, the heat generated in the road lighting device 1 is radiated by the radiating fins 23 in a heat radiating direction 26 indicated by a one-dot chain arrow in the drawing. Thereby, drainage and heat dissipation can be performed more efficiently.

  As shown in FIG. 9, the height of the radiation fin 23 is set to H1 <H2 when the height on the arm 11 side is H1 and the height on the LED light emitting unit 14 side is H2. Thereby, the heat dissipation effect can be further enhanced. Moreover, since the LED light emission part 14 is arrange | positioned in the side away from the arm 11, heat dissipation becomes still more favorable.

  According to the road lighting device 1 of the first embodiment, since the thickness T1 of the portion where the LED light emitting unit 14 is provided is smaller than the thickness T2 of the portion where the power supply block 15 is provided, the overall size and weight are reduced. Can be

  Moreover, since the optical function control part 21 which has the inclined surface 21a is provided in the outer surface of the power supply block accommodating part 17, the light from the light emission panel 16 can be controlled and desired light distribution can be obtained. Moreover, since the power supply block 15 which is a heavy article compared with the LED light emission part 14 is arrange | positioned at the arm 11 side which is a supporting member, the burden with respect to the arm 11 can be reduced.

  Moreover, since the power block 15 which is a heavy object compared with the LED light emission part 14 is arrange | positioned at the arm 11 side, while being able to reduce the burden with respect to the arm 11, the stress added to the arm insertion part 20 is reduced, and an instrument is provided. The life of the outer shell can be extended.

  Further, a connection space 18 for connecting an external electric wire to the power supply block 15 is provided on the arm 11 side in the main body 12 and the connection space 18 can be opened and closed by the lid member 19. Etc. becomes easy. Further, since the lid member 19 can be easily opened and closed by the latch portion 22, workability can be improved.

(Second Embodiment)
FIG. 10 shows the optical function control unit 30 of the second embodiment. In the following description, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The optical function control unit 30 has a reflective surface 30 a that is substantially perpendicular to the light emitting panel 16. The reflective surface 30a is painted with high reflectivity. The reflecting surface 30a reflects light from the light emitting panel 16 forward (in the direction opposite to the arm 11). Thereby, forward light distribution can be obtained.

(Third embodiment)
FIG. 11 shows an optical function control unit 40 of the third embodiment. The optical function control unit 40 has a non-reflective surface 40 a substantially perpendicular to the light emitting panel 16. The non-reflecting surface 40a is painted with low reflectivity. Thereby, it can suppress that the non-reflective surface 40a reflects the light from the light emission panel 16 ahead, and a back cut light distribution can be obtained.

1 Road lighting equipment 11 Arm (supporting member)
12 body part 13 upper lid part 14 LED light emitting part 15 power supply block (power supply part)
16 Light-emitting panel 17 Power block housing part 18 Connection space (connection space)
DESCRIPTION OF SYMBOLS 19 Lid member 20 Arm insertion part 21 Light control function part 21a Inclined surface 22 Latch part 23 Radiation fin 23a Groove 24 Horizontal mounting surface 25 Drainage direction 26 Heat radiation direction 27 Omission range 30 Optical function control part 30a Reflective surface 40 Optical function control part 40a Non-reflective surface

Claims (3)

A main body supported by the support member;
An upper lid covering the upper part of the main body,
An LED light emitting part and a power supply part fixed to the lower side of the upper lid part;
A panel that is provided on the lower side of the main body and transmits light from the LED light-emitting section; and a housing that is provided to project downward from the main body to house the power supply. ,
The thickness of the portion LED light emitting portion is provided is rather smaller than the thickness of the portion the power supply unit is provided,
A connection space for connecting an external electric wire to the power supply unit is provided on the support member side in the main body unit, and
A road lighting device in which the connection space can be opened and closed by a lid member . The road lighting device according to claim 1,
A road lighting device in which an outer surface of the housing portion has a function of controlling light from the panel. The road lighting device according to claim 1 or 2,
A road lighting apparatus in which the power supply unit is disposed on the support member side.

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