KR20100111381A - Street light - Google Patents

Abstract

PURPOSE: A street light is provided to evenly illuminate the road by including a light source mounting unit, controlling the angle of the light source, inside a chamber. CONSTITUTION: A housing(110) is formed on a chamber in which a light source is accommodated. The housing includes a heat dissipation channel for external air which divides the inside of the chamber. A mounting unit(160) has a light source(120) thereon. The mounting unit is installed inside the chamber to control the projection angle of the light source. The heat dissipation channel is formed on the top side and bottom of the housing and is formed on a rear side in longitudinal direction of the housing.

Description

Road lighting equipment {Street Light}

The present invention relates to a road lighting apparatus, and more particularly, to a road lighting apparatus capable of uniformly illuminating a road more efficiently and dissipating heat inside while preventing glare of a driver.

In general, roads are mainly used by cars and pedestrians. On these roads, road users and road users should be able to easily identify the road and use it safely.

In particular, when it is difficult to identify the road at night, various safety accidents occur.

Therefore, in general, a lighting device such as a street lamp is installed on the road.

The conventional street light 10 is made to install a light bulb 3 for the upper end of the pole 5 having a height of about 30m from the ground as shown in Figure 1 is made to illuminate the road all around the road below.

In addition, the street light as described above is installed at a predetermined interval as shown in Figure 2 is made to light the road.

However, the conventional street light has the following problems.

First, a conventional street light is installed at a high position in order to illuminate a wide range with a single street light, and thus the distance from the road surface becomes far, so that a high-light bulb is required to brighten the road surface. There are disadvantages in life and power usage.

Second, since the distance between the light source and the road surface is far, the amount of light scattered by the water droplets of the fog when the fog occurs is also large, there is a disadvantage that the illumination of the road during the fog.

Third, since the light source illuminates from the upper part of the road toward the lower part, as shown in FIG. 2, a hot spot having a brighter brightness than the prescribed light is formed in the lower part of the light source, and the brightness decreases as the distance goes away. There is a problem that is not uniformly illuminated.

Fourthly, since the range illuminated by the street light is roundly formed around the light source, it is illuminated by the rear light to the outside of the road where lighting is not required, so that the creature or insect gets light at night and disturbs the ecosystem. There is also a problem that occurs.

Fifth, since the position of the light source is located above the driver's field of vision, direct light is irradiated to the driver to cause glare during driving, which may be a risk for safe driving.

Sixth, in general, the street lamp is installed outdoors, so waterproof is essential. If you make a hole in the outer wall of the street lamp to fix the street lamp, the waterproof function is lost, so that the outer wall of the street lamp cannot be punched and a separate fixture must be formed. There are disadvantages.

Seventh, since the street lamp is installed outdoors, the lamp is heated by direct sunlight. If the street lamp does not have a proper heat dissipation structure, there is a risk of overheating of light sources and components inside.

The present invention is to solve the above problems, the present invention to brighten the road uniformly, does not cause the glare of the driver, heat dissipation generated from the internal light source more efficiently and can adjust the irradiation angle and internal or external An object of the present invention is to provide a road lighting device that is waterproof even if a hole is drilled in the hole.

In order to solve the above problems, according to an embodiment of the present invention, a chamber that is a space in which a light source is accommodated is formed, and a heat dissipation channel through which external air passes so that heat inside the chamber is radiated inside the chamber. Disclosed is a road lighting apparatus including a housing formed to be partitioned with the light source, and a light source mount provided inside the chamber to adjust an irradiation angle of the mounted light source.

The chamber is provided with a light source and a power supply for supplying a current to the light source, the light source is spaced apart from the inner peripheral surface of the housing to transfer heat to the heat dissipation channel through convection or radiation, the power supply device of the housing It may be provided to contact the inner surface.

The heat dissipation channel may be formed along the longitudinal direction of the housing on the upper side, the lower side, and the rear side of the housing.

The light source mount may include a coupling part to which a light source is coupled, a disk formed on one side of the coupling part and rotatably provided at a predetermined angle, and having a fixed groove formed at a predetermined interval on an edge thereof, and selectively coupled to the fixing groove of the disk. It may comprise a fixing part for selectively fixing the disk.

The fixing part may be a ball plunger.

On the other hand, the light source includes a light emitting unit in which a plurality of LED elements are arranged, a light collecting unit for condensing the light emitted from the light emitting unit to receive the light, and a light emitted upward and downward from the light emitting unit to the road It may comprise a lens formed with a reflecting portion to reflect toward.

The housing may be installed at a height of 1.5 meters or less from the road surface.

According to the road lighting apparatus of the present invention has the following effects.

First, using the LED element as a light source, the power consumption is reduced, and the operating cost of the light source can be improved because the life of the light source is improved.

Second, since the LED elements are arranged horizontally, the road can be more uniformly illuminated, and the irradiation angle can be adjusted to make the road more uniform and to concentrate the light quantity in the upper part of the range. It can be revealed to satisfy the suboptimal level system.

Third, since the lighting device for the road is not built on a high pole, but is provided on a road rail or a center separator of about 1m in height, since the installation height is low, the amount of light lost due to the decrease in the distance from the road is low. Even when using a light source, there is an advantage that sufficient illumination is possible.

Fourth, since the installation height of the road lighting device is less than about 1m, it is lower than the eye level of the driver has the effect of preventing the night glare of the driver.

Fifth, since the installation height of the road lighting device is low, the light scattered during the generation of fog is relatively small, which enables more efficient lighting.

Sixth, since only the road surface is reflected by reflecting or refracting light, the amount of light is concentrated on the road surface so that the road can be brighter.

Seventh, since there is no rear light, there is an advantage that plants and insects around the road are not illuminated at night, thereby causing disturbance of the ecosystem.

Eighth, the irradiation angle can be adjusted to illuminate the correct part of the road.After installation, the angle of irradiation can be adjusted, so the installation angle is less necessary to install, so the installation is simple and the adjustment of the irradiation angle is easy. have.

Ninth, since the heat dissipation channel is formed in the housing, the heat inside is radiated to the outside, and stable performance can be realized, and since the heat dissipation channel is formed by partitioning the chamber, it forms an outer wall of the double structure to be fixed or installed inside or outside. Even if the hole is formed, there is an advantage that the waterproof is made completely.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

As shown in FIG. 3, the road lighting apparatus of one embodiment of the present invention may include a housing 110, a light source mount 160, and a light source 120.

As shown in FIGS. 3 and 4, the housing 110 may have a shape of an approximately rectangular parallelepiped having a longitudinal direction from side to side. In addition, the chamber 112 is formed inside the light source 120 and the power supply device 150 for supplying current to the light source 120, the heat radiation channel ( 114) is formed.

In addition, the front of the housing 110 may be provided with a removable cover 116 and the transparent window 118. The cover 116 may be attached or detached for convenience of work when mounting the light source 120 or the like in the chamber 112 or adjusting the irradiation angle.

The heat dissipation channel 114 is formed inside the hollow so that the outside air can flow, as shown in Figure 4, extending to the left and right sides of the housing 110 is to be opened so that the extended end is in communication with the outside Can be. The heat dissipation channel 114 as described above is partitioned from the chamber 112 so that the housing 110 has an outer wall having a double structure, and a plurality of places may be formed on the upper side, the lower side, and the rear side of the housing 110. . In addition, although not shown, a slit may be formed on the outer surface of the heat dissipation channel 114 to allow the outside air to flow more smoothly, and heat dissipation fins may be formed inside the heat dissipation channel 114.

Since the heat dissipation channel 114 is partitioned from the inside of the chamber 112, the housing 110 is divided into a wall partitioning the chamber 112 and the heat dissipation channel 114 and a double wall to an outer wall of the heat dissipation channel 114. As a result, the rainwater or moisture may be formed in the outer surface or the inner surface of the housing 110 by using a screw (not shown) or a fixing nail (not shown). 112) It is prevented from entering inside.

The light source mount 160 to which the light source is mounted may be provided in the chamber 112.

As shown in FIG. 3, a light source 120 may be mounted on the light source mount 160, and a power supply device 150 may be provided at a rear side thereof to supply current to the light source 120.

At this time, the light source 120 is provided to be spaced apart from the inner circumferential surface of the chamber 112 to transmit heat to the heat dissipation channel 114 through convection and radiation, the power supply device 150 is the chamber ( By being provided in contact with the inner circumferential surface of 112 can be made to heat transfer to the heat dissipation channel 114 through conduction.

As shown in FIG. 3, the light source mount 160 may include a disk 162 and a fixing part 166.

The disk 162 is coupled to one side of the light source 120 to be described later, and is a component that rotatably supports the light source 120. The disk 162 as described above is formed to be rotatable about a predetermined angle and may be formed such that the edge forms a circle or an arc. In addition, grooves 164 may be formed at edges of the disc 162 at predetermined intervals.

The fixing part 166 is selectively coupled to the groove 164 to fix the angle of the disk 162 by limiting the rotation of the disk 162, thereby fixing the irradiation angle of the light source 120 It is a component.

In this embodiment, the fixing portion 166 has a thread 167 is formed on the outer circumferential surface, the ball 168 that is elastically supported in the portion coupled to the groove 164 of the disk 162 is inserted Take the example which consists of a ball pliers bottom.

The fixing part 166 as described above may be coupled to other components inside the chamber 112 and rotated forward and backward on the thread 167 to be selectively coupled to the groove 164 of the disk 162. .

That is, when the fixing part 166 is not coupled to the groove 164 of the disk 162, the rotation angle of the disk 162 is free to allow the irradiation angle of the light source 120 coupled to the disk 162. Can be adjusted. In addition, after the irradiation angle of the light source 120 is adjusted, the fixing unit 166 is coupled to the groove 164 of the disk 162 to constrain the rotation of the disk 162 and irradiate the light source 120. The angle can be fixed.

The light source 120 may include the light emitter 122 and the lens 130 as shown in FIGS. 3 and 5.

The light emitting unit 122 may include a circuit board 126 on which a control circuit is printed and provided, and an LED 124 provided on the circuit board 126 to emit light. At this time, the LED 124 may be arranged in plurality in a horizontal direction.

The lens 130 is a kind of optical system that receives light emitted from the light emitting unit 122 and collects the light toward the road side.

The lens 130 is formed to have a longitudinal direction along the arrangement direction of the LED 124, and may include a light collecting part 132 and a reflecting part 134.

The condenser 132 is formed to extend in the horizontal direction along the arrangement direction of the LED 124 opposite the LED 124. In addition, the light collecting part 132 may have a shape such as a convex lens to collect the received light and collect the light toward the road surface.

The reflector 134 is a component for reflecting the light emitted from the upper and lower angles of the LED 124 to the road, and along the condenser 132 above and below the condenser 132. Can be formed.

The reflector 134 may be formed such that the rear surface is inclined or curved so that the light emitted from the LED 124 and received by the light is reflected inside the surface and refracted to the road. In addition, the outer surface of the rear surface where the light is reflected may be mirrored so that the reflection efficiency of the light is high.

The light collecting part 132 and the reflecting part 134 as described above are preferably formed integrally.

In addition, the heat sink 140 may be provided on the rear side of the circuit board.

On the other hand, the light emitted through the lens 130 is emitted obliquely toward the road surface while having a predetermined range of irradiation angle range, the amount of light irradiated through the upper portion of the irradiation angle range is irradiated through the lens It is preferable that about half of the total amount of light is concentrated.

In this embodiment, it is suggested that the range of the angle at which about half of the total amount of light is irradiated is a 2 degree range (a: see FIG. 6) from the upper side.

Assuming that the light source 120 is installed on the side of the road as shown in FIG. 6, the distance from the light source 120 is further increased toward the center of the roadway 20, and the angle formed with the light source 120 is also increased. The more inclined the light is, the more light is concentrated at a part far from the light source in order to make the road more uniform.

On the other hand, the color of the light emitted from the LED 124 arranged in the light source 120 is preferably a white or pale orange-based color of the general street light. In addition, some of the LEDs 124 may be made to emit a different color from the surrounding LEDs.

In addition, the LED of a different color from the surroundings is preferably an index of a long wavelength of red or yellow series that is resistant to scattering by fog.

Therefore, in general, the lighting is performed in a white or pale orange system, and in the case of rain or fog conditions, the long wavelength series may be added to improve driver safety.

On the other hand, as shown in Figure 6 when installed on the railing 30 or the guide rail, the installation height of the housing 110 is less than about 1m from the road surface, more preferably less than the eye height of the driver below 1.5m It is preferred to be installed at the location. Since the installation height of the housing 110 is installed at a position lower than the eye height of the driver, light emitted from the lighting device is directly prevented from illuminating the driver's eyes, thereby preventing the driver's glare.

Therefore, by illuminating the road lighting device of the present invention so as to only illuminate the road at a low position on the road railing or the like to shorten the distance between the light source 120 and the surface of the road 20 to obstruct the view of road users such as drivers and pedestrians. In addition to preventing light reflections, it also improves the brightness of the road and makes the road more even.

In addition, by adjusting the irradiation angle of the light source, the light can be adjusted to face the road surface without facing upwards to prevent the glare of the driver.

As described above, the preferred embodiments of the present invention have been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof has ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

1 is a view showing the brightness of a conventional street light and a road illuminated by a street lamp;

2 is a view from above of FIG. 1;

3 is a cross-sectional view showing a road lighting apparatus according to an embodiment of the present invention;

4 is a perspective view of the road lighting apparatus of FIG.

5 is a sectional view showing a light source of the road lighting apparatus of FIG. And

6 is a view showing the brightness of the road and the road illuminated by the road lighting apparatus of the present invention.

<Description of the symbols for the main parts of the drawings>

110: housing 112: chamber

114: heat dissipation channel 116: cover

118: transparent window 120: light source

122: light emitting unit 124: LED

126: circuit board 130: lens

132: light collecting unit 134: reflecting unit

140: heat sink 150: power supply

160: light source mount 162: disk

164: groove 166: fixing part

167: thread 168: ball

Claims (6)

A housing in which a chamber is formed, a space in which a light source is accommodated, and a heat dissipation channel through which external air flows so as to dissipate heat in the chamber so as to be partitioned from the inside of the chamber; A light source mount mounted on the light source and provided inside the chamber to adjust an irradiation angle of the mounted light source; Road lighting device comprising a. The method of claim 1, The heat dissipation channel is a road lighting apparatus, characterized in that formed along the longitudinal direction of the housing on the upper, lower and rear sides of the housing. The method of claim 1, The light source mount, A disk coupled to one side of the light source to support the light source and to be rotatable at a predetermined angle, and having fixed grooves formed at predetermined intervals on an edge thereof; A fixing part selectively coupled to a fixing groove of the disk to selectively fix the disk; Road lighting apparatus comprising a. The method of claim 3, The fixing unit is a road lighting apparatus, characterized in that the ball plunger. The method of claim 1, The light source is, A light emitting unit in which a plurality of LED elements are arranged; A lens including a condenser configured to condense the light received from the light emitter toward the road and a reflector configured to reflect the light emitted upward and downward from the light emitter toward the road; Road lighting apparatus comprising a. The method of claim 1, The housing is a road lighting apparatus, characterized in that installed at a height of less than 1.5 meters from the road surface.

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