KR101496225B1 - Led luminaires for road area lighting - Google Patents

Abstract

The present invention relates to a light emitting diode (LED) street lamp. More specifically, the present invention relates to an LED street lamp configured by sequentially coupling a heat radiation unit with improved radiation function; an air vent unit inserted into an air passage formed between a plurality of heat radiating fins in the heat radiation unit; an LED assembly closely attached and fixated to a lower portion of the heat radiation unit having an LED accommodation unit configured to surround each LED element; and a light diffusion lens unit closely attached and fixated to a lower portion of the LED assembly to diffuse light distributed from each of the LED elements inside a housing formed of a body and a cover.

Description

{LED LUMINAIRES FOR ROAD AREA LIGHTING}

The present invention relates to an LED streetlight apparatus, and more particularly, to an apparatus for providing a heat dissipation unit, a light distribution diffusion glass lens unit, an air vent unit, and a bubble level unit in a single housing.

BACKGROUND ART [0002] Generally, lighting equipment used for indoor or outdoor lighting is mainly composed of filament lighting devices using light generated by heating currents to a high temperature. However, since the conventional filament lighting apparatus is heated to a high temperature at which light is generated, there is a problem that power consumption is high and the life span is short.

There have been attempts to use light emitting diodes (LEDs) as lighting fixtures by producing light. An LED is an abbreviation of a light emitting diode and refers to a semiconductor device emitting light. Conventional incandescent lamps emit light by receiving heat, while LEDs emit light by energy difference (electron transfer), so they are semi-permanent, consuming less than 1/2 of conventional incandescent lamps, response time is 1,000,000 times faster, The age is known to reach 50,000 hours.

That is, as a material that can realize excellent lighting effect without breakdown for a long time even with a low voltage low power, it is eco-friendly and economical, and it is widely regarded as a material of a lighting apparatus.

However, since a large number of LED lamps are mounted on the printed circuit board, a large amount of current is required to generate excessive heat, The life of the lighting apparatus is shortened or the performance thereof is deteriorated.

And the structure of the heat dissipating portion capable of appropriately cooling the generated heat is essential.

The heat dissipating unit used in general LED lighting equipment is manufactured and used in various shapes using various heat dissipating members. Among them, a method of manufacturing a desired size and shape by aluminum die casting or an aluminum extrusion method is widely used, and the heat dissipating unit thus manufactured is assembled and used mainly on the back surface of the LED module.

On the other hand, the die-casting method can produce a beautiful appearance, but since it is made of an aluminum alloy in the molding method, the purity and density of the aluminum are low and the heat radiation effect is lower than that of the extrusion molding method.

In addition, moisture and dust existing in the interior of a normal lighting device cause a deterioration of the light distribution diffusing effect of the lens, and a separate device for preventing inflow of moisture, dust, And a separate device for maintaining the left and right balance of the illumination lamp was required.

SUMMARY OF THE INVENTION It is an object of the present invention, which has been devised to solve the above problems, to provide a heat dissipating apparatus in which a plurality of saw-like heat dissipating fins are formed in order to maximize a heat dissipating surface area and a plurality of heat dissipating fins are protruded from a heat dissipating fin supporting plate, So that it is possible to provide an LED streetlight device having improved heat dissipation function by a convection phenomenon.

Another object of the present invention is to provide an air vent which is capable of preventing dust and moisture which impede the light distribution and diffusion function from being introduced into the interior, To improve the lifetime of the LED and to save energy by maintaining a high efficiency performance.

It is a further object of the present invention to provide a light distribution diffusing glass lens unit which enlarges the refraction angle and curvature of the light distribution generated from the LED element to set variously the directional and directional visible regions of the light distribution, Diffusion and increased luminance are reduced by the lens cover and reflector of the glass material having protruded protrusions to prevent the glare and the afterglow completely and to prevent the light pollution Which can fundamentally prevent damages to crops and households caused by rainfall.

Still another object of the present invention is to provide a light distribution diffusion glass lens unit which can be used with semi-permanent performance as a glass material so that discoloration due to yellowing and salting caused by existing polycarbonate (PC) In order to provide an LED streetlight device that can be removed with a high efficiency.

It is a further object of the present invention to provide a bubble level portion for adjusting the left and right horizontal balance angles at the time of installation of the LED streetlight and the security light mechanism so as to prevent a traffic accident caused by the glare with respect to the traveling direction of the driver and the pedestrian LED street light and security light.

According to an aspect of the present invention, there is provided an LED streetlight device comprising:

A housing having a body and a cover, a heat dissipating unit having a plurality of heat dissipating fins formed in an annular shape on an upper surface of a body fixed to a power supply unit, and a plurality of heat dissipating units And a light distribution diffusing glass lens unit for diffusing light emitted from the LED device at a predetermined angle, the light diffusing glass lens unit having the LED device accommodated therein.

Preferably, the radiator includes a plurality of radiating fins formed in a cylindrical shape having a serrated outer peripheral surface,

And a support plate protruding from the plurality of radiating fins at predetermined intervals is fixedly coupled to the body.

Further, the heat-

It is preferable to further include an air passage passing through the radiating fin support plate to induce convection of air.

Preferably, the air passage is provided with an air vent portion for discharging at least one of heat and moisture by convection of air and for preventing at least one of intake air and dust from entering into the air passage.

Here, the light distribution diffusion glass lens unit includes:

A concave light diffusion glass lens which is eccentrically eccentrically recessed on one side of which the LED element is housed and diffuses the refractive index of the light distribution of the LED element at a predetermined angle,

And a glass lens cover which receives and inserts the concave light diffusion glass lens into the lower portion of the body through a wrench.

Wherein the light distribution diffusion glass lens unit comprises:

It is preferable that a silicone seal is provided on the upper surface of the concave light diffusion glass lens when the glass lens cover is assembled to the body for preventing breakage of the light distribution diffusion glass lens portion and for preventing vibration and waterproofing.

Here, when the light distribution angle of the LED device is 115 degrees or less, it is preferable that the light distribution angle passing through the concave light diffusion glass lens is divergent to 140 degrees or more.

Preferably, the concave light diffusion glass lens has an embossed shape in which convex shapes of a predetermined size are continuously repeated for preventing glare of at least one of a pedestrian and a driver.

The concave light diffusion glass lens

It is preferable to protrude in a predetermined shape on an outer surface opposite to the one surface of the LED element, which is received in order to prevent the afterglow and keep the visible region of the light distribution in the predetermined region.

Wherein the light distribution diffusion glass lens unit comprises:

And a reflector provided at a predetermined position of the glass lens cover to prevent subsequent light diffusion of the concave light diffusion glass lens.

The LED streetlight and security luminaire

It is preferable to further include a bubble level portion for maintaining the left and right balance angles when the luminaire is installed to prevent glare with respect to the traveling direction of the driver and the pedestrian.

As described above, according to the present invention, an air vent portion is inserted into an air passage formed between a heat dissipating portion having improved heat radiation function and a lens space in a housing made of a body and a cover, And a light distribution diffusion glass lens unit which is tightly fixed to the lower portion of the LED assembly to ensure the light distribution of the LED device, thereby maximizing the heat dissipation surface area and further improving the heat dissipation function , And air vent part, it is possible to reduce the energy consumption by improving the lifetime of the LED and maintaining the high efficiency performance by discharging moisture and dustproof function and the lens inner heat to the outside by further improving the heat radiation function.

According to the present invention, there is further provided a light distribution diffusing glass lens unit for enlarging the refraction angle and the curved line of the light distribution generated from the LED element to set the directional angle and the directional visible range of the light distribution to various values, Is diffused beyond the small angle defined by national standards for street light and security light fixtures, LED street light fixtures, and LED security light fixtures, so that the brightness increased by the projection of the concave light diffusion glass lens It is possible to prevent glare and to prevent the afterglow.

Further, according to the present invention, since the light distribution diffusing glass lens unit is made of a glass material having a semi-permanent performance, discoloration and lowering in luminance caused by yellowing and salting occurring in an existing lens made of polycarbonate (PC) .

According to the present invention, since the bubble level portion for maintaining the left and right balance angles when the LED streetlight is installed is additionally provided, the lighting standard of the road to the driver and the lighting standard of the road to the driver are met, It is possible to prevent the traffic accident caused by the glare of the driver and the pedestrian, and to prevent the damages of the crops and the damage of the house caused by the light pollution caused by the light of the LED street light device.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further understand the technical idea of the invention. And should not be construed as limiting.
1 is an exploded perspective view illustrating an LED streetlight apparatus according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a structure of an LED streetlight device according to an embodiment of the present invention.
3 is a cross-sectional view showing a heat dissipation part of an LED streetlight device according to an embodiment of the present invention.
4 is a cross-sectional view showing a configuration of a light distribution diffusion glass lens unit of an LED streetlight device according to an embodiment of the present invention.
5 is a perspective view showing a light distribution diffusion glass lens unit of an LED streetlight device according to an embodiment of the present invention.
6 is a view showing the light distribution angle of the light distribution diffusion glass lens portion of the LED streetlight device according to the embodiment of the present invention.
FIG. 7 is a diagram illustrating a structure of a bubble level portion of an LED-LED streetlight device according to an embodiment of the present invention.
FIG. 8 is an illustration of an example of an LED streetlight device to which the embodiment of the present invention is applied.
FIG. 9 is an exemplary diagram showing LED street lamp apparatus to which an embodiment of the present invention is applied.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It can be easily carried out. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, the same reference numerals are given to the same elements even when they are shown in different drawings. In the drawings, the same reference numerals as used in the accompanying drawings are used to designate the same or similar elements. And detailed description of the configuration will be omitted. Also, directional terms such as "top", "bottom", "front", "back", "front", "forward", "rear", etc. are used in connection with the orientation of the disclosed drawing (s). Since the elements of the embodiments of the present invention can be positioned in various orientations, the directional terminology is used for illustrative purposes, not limitation.

FIG. 1 is an exploded perspective view showing an LED streetlight device according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the LED streetlight device shown in FIG.

1 and 2, an LED streetlight device according to an embodiment of the present invention includes a housing 10 having a body 11 and a cover 13, and a housing 10 housed in the housing 10, An LED assembly 30 which is tightly fixed to the lower portion of the heat dissipating unit 30 and a light distribution diffusing glass lens unit 40 tightly coupled to the LED assembly 30, .

Here, the heat dissipation unit 20 has a plurality of heat dissipation fins formed in an annularly assembled structure on the upper surface of the body 11 fixed to the power supply unit SPMS.

3 is a cross-sectional view showing the structure of the heat dissipating unit 20 shown in Fig. 3, the heat dissipating unit 20 includes a plurality of heat dissipating fins 21 formed in a cylindrical shape having a serrated outer circumferential surface and a plurality of heat dissipating fins 21 fixedly coupled to the body 11, And a thermal pad 24 provided between the cover 13 and the plurality of radiating fins 21 to fix the heat radiating fins 21 at predetermined intervals

Accordingly, when an LED element connected to the printed circuit board of the LED assembly 30 is turned on by the power supplied from the power supply unit 10, light is gathered through the light-distribution diffusion lens unit 40 and illuminated. The heat is released through the heat dissipating unit 20. [

Here, it is preferable that the radiating fins 21 and the radiating fin supporting plates 23 are integrally formed as a single mold.

The heat dissipation fins 21 are generally formed using a general heat dissipation material such as copper, aluminum, graphite, or ceramics.

That is, the heat dissipating unit 20 is provided with a plurality of heat dissipating fins 21 at predetermined positions for rapid heat dissipation, and the heat dissipating fins 21 are fixed to the upper surface of the heat dissipating fin supporting plate 23 in a protruding manner. At this time, the heat-radiating fin support plate 23 may have various shapes, but it is not limited thereto.

That is, the radiating fin 21 has a cylindrical shape having a serrated outer circumferential surface, and the radiating fin support plate 23 is protrudingly fixed to the bottom surface of the radiating fin 21. Here, the heat radiating fins 21 are formed in a plate shape, and a plurality of the heat radiating fins 21 are formed adjacent to each other with a certain distance therebetween, so that the lens space and air can freely move and emit heat therebetween.

The shape of the heat radiating fins 21 may be variously formed according to the purpose of use. For example, as described in the present invention, a cylindrical heat radiating fin 21 having a serrated outer circumferential surface is disposed at a predetermined interval The heat radiating fin supporting plate 23 is formed in a disc shape.

The thermal pad 24 discharges the heat transmitted to the cover 13 of the housing 10 by conduction.

The heat dissipating unit 20 penetrates through one of the plurality of heat dissipating fins 21 and the heat dissipating fin supporting plate 23 and the light distribution diffusing glass lens unit 40 to induce air convection, An air passage 25 is provided.

The air passage 25 is formed by the heat radiating fin supporting plate 23 and the plurality of radiating fins 21 and the through holes formed in the light distribution diffusing glass lens unit 40 or the radiating fin supporting plate 23 having the through holes, And a through hole formed in the inside of the radiating fin 21 fixed to the radiating fin 21. It can be seen that convection phenomenon occurs in the hot air generated in the LED element through the air passage 25 and the heat generating function is improved.

In the LED streetlight device to which the embodiment of the present invention is applied, the air passage 23 inserts the air vent portion 50. The air vent part 50 prevents dust or moisture from entering into the room, discharges the moisture outside and discharges the internal heat to the outside, thereby further improving the heat radiation function, thereby saving energy by maintaining the lifetime of the LED and high efficiency performance. do.

The air vent portion 50 has a function of preventing leakage of light of the LED streetlight mechanism, blocking inflow of impurities, and ensuring a sufficient ventilation channel.

In other words, the air vent portion 50 is provided with a water backflow preventing jaw, so that when the outside air flows into the housing, the air inflow amount is sufficiently secured and the inflow of water is controlled.

In addition, since a normal filter is separately provided on the flow path of the air vent section 50 to have an effect of catching impurities in the air in the inflow of the outside air, the lamination of the impurities in the housing 10 is avoided, Dust and foreign matter are prevented from being conceived on the inner wall surface of the lens portion 40. [

Therefore, in order to maximize the heat dissipation surface area in the embodiment of the present invention, a plurality of saw-like heat dissipating fins are formed so as to protrude and fix a plurality of heat dissipating fins, and the plurality of heat dissipating fins and the cover are contacted and connected by a summer pad, A circulation path of air is formed, and the heat radiation function is improved by the convection phenomenon.

In addition, by inserting an air vent portion in the air passage, it is possible to prevent the dust and moisture which hinders the light distribution diffusing function from being introduced into the interior, thereby improving the dustproof and moisture-proof function and discharging the internal heat of the glass lens to the outside, And energy is saved by maintaining high efficiency performance.

In addition, an LED assembly 30 provided on an LED printed circuit board and having an LED receiving portion for surrounding each LED element is tightly coupled to the heat radiating fin support plate 23 of the heat dissipating portion 20.

The LED element is illuminated by a power source supplied from a power supply unit (SMPS) supplied from the outside, and the emitted light is diffused by a light distribution diffusing glass lens unit 40 at a predetermined angle or more defined by the national standard KS C 7658 do.

One side of the light distribution diffusing glass lens unit 40 in which the LED element of the LED assembly 30 is accommodated is eccentrically eccentrically formed and is made of a concave light diffusion glass which diffuses the refractive index of the light distribution of the LED element at a predetermined angle A lens 41 and a lens cover 43 which receives the concave light diffusion glass lens 41 therein and fixes the concave light diffusion glass lens 41 in close contact with a lower portion of the body through a wrench.

The inner surface of the concave light diffusion glass lens 41 in which the LED element of the LED assembly 30 is accommodated is formed in an embossed shape in which convex shapes of a predetermined size are continuously repeatedly formed, It is preferable that the outer surface of the concave light diffusing glass lens part 41 on the opposite side of the other surface is protruded in a predetermined shape in order to keep the visible area of the light distribution at a predetermined area, .

That is, since the LED element of the LED assembly 30 is accommodated in the concave light diffusion glass lens 31 of the light distribution diffusion glass lens unit 40, the light of the LED element is incident on the concave light diffusion glass lens unit 41, And is emitted to the outside through the glass-lens-portion cover 43.

4 and 5 show a detailed structure of the concave light diffusion glass lens 43. The concave light diffusion lens 41 is provided with a groove 41b along the circumferential surface 41a, The LED element of the assembly 30 is accommodated.

That is, the concave light diffusion glass lens 41, which is a resin-based glass capable of diffusing light, is provided to receive the LED element and diffuse the light of the LED element to emit light, The diffusion of the light of the LED device through the rear surface is maximally prevented.

As shown in FIG. 5B, the concave light diffusion glass lens 41 is provided in a predetermined shape protruding in an annular shape of a predetermined size, and the light diffusing glass lens 41, which is diffused through the concave light diffusion glass lens 41, And functions as a light emitting surface that emits most of the light of the assembly 30. The concave light diffusing glass lens 41 may be provided with a hemispherical surface. At this time, light of a strong contrast to the surroundings is emitted, and the emission pattern of the concave light diffusing glass lens 41 is changed according to the shape of the concave light diffusion glass lens 41 And is released in a circular form.

On the other hand, the concave light diffusion glass lens 41 may be a surface that is eccentrically positioned with respect to the ground so that the emitted light has a predetermined irradiation angle to the side. In the present invention, As shown in FIG.

In addition, since the inner surface of the concave light diffusion glass lens 41 having an eccentric depression shape is formed in an embossed shape in which convex shapes of a predetermined size are continuously repeated, the diffusion range of light of the LED elements can be expanded.

The outer surface of the concave light diffusion glass lens 41 is provided so as to condense the light having passed through the concave light diffusion glass lens 41 in a predetermined shape as shown in FIG. The concave light diffusing glass lens 41 has an outer cross-sectional shape in the form of a heart or a peanut. In this case, the concave light diffusion glass The pattern of the light distribution emitted according to the shape of the lens 41 is emitted differently.

Although the concave light diffusion glass lens 41 that emits light in a heart-shaped or peanut-shaped pattern has been shown and described in the above example, it is obvious that various shapes of glass lenses can be realized. The concave light diffusing glass lens 41, which can be manufactured in various shapes as described above, can be easily replaced by a user as needed, and can be easily produced by a single LED streetlight device, thereby improving the efficiency of use.

5 is a cross-sectional view showing an assembly state of the concave light diffusion glass lens 41 and the glass lens cover 43. FIG. Referring to Fig. 5, the concave light diffusion glass lens 41 is inserted and fixed in the center of the glass lens cover 43. Fig.

The concave light diffusing glass lens 41 is provided with a groove 43a having the same shape as the predetermined shape at the center and the concave light diffusion glass lens 41 is provided in the groove 43a And the glass lens cover 43 is tightly coupled to the body 11 by the engagement of the wrench inserted into the fixing groove 43b provided along the circumferential surface. At this time, when the glass lens cover 43 is tightly coupled to the body 11, the concave light diffusion glass lens 41 is provided on the upper surface of the concave light diffusion glass lens 41 in order to prevent breakage of the concave light diffusion glass lens 41, ).

The light distribution diffusing glass lens unit 40 may further include a reflector 47 at a predetermined position of the glass lens cover 43, as shown in Fig. 5C. That is, the reflector 47 includes a fixing member 47a which is bolted to the fixing groove 43b of the glass lens cover 43, and a fixing member 47a integrally formed with the fixing member 47a, And a reflection plate 47b for shielding the downstream light of the light source 41. The reflection plate 47b may be made of various materials, but it is preferable that the reflection plate 47b is made of a material that can completely block the diffuse afterglow diffused in the concave light diffusion glass lens 41. [ Although the fixing member 47a is fixed to the fixing groove 43b of the glass lens cover 43 by bolts, the fixing member 47a may be fixed to the through hole provided in the glass lens cover 43 Bolt connection.

That is, the diffuse light diffused by the concave light diffusion glass lens 41 is completely blocked by the reflection plate 47b, thereby preventing glare due to light pollution.

6 (a) is a graph and an angle illuminance showing the light distribution angle of the LED element of the LED assembly, and FIG. 6 (b) is a graph and an angle illuminance showing the light distribution angle of the light distribution diffusion glass lens unit 40. FIG. 6, the light distribution angle of the LED device is 115 degrees or less, whereas the light distribution angle passing through the concave light diffusion glass lens 41 is spread to 140 degrees or more. Light fixtures, 7.8.1 LED street light fixtures, and 7.8.2 LED security light fixtures are at least a predetermined angle defined in the national standard KS C 7658.

That is, 7.8.1 and 7.8.2 of the national standards for the street lighting and security lighting fixtures, LED street lighting fixtures, and LED lighting security fixtures are as follows.

7.8 Mechanism characteristics

7.8.1 LED Street Light Fixture

The average road surface roughness and roughness uniformity simulated on the basis of the measured data after lightening test after aging for 100 hours by applying the rated voltage of the rated frequency of the LED luminaire should conform to Table 5 and the average road surface luminance, Shall conform to Table 6.

7.8.2 LED security light

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The lighting criterion for the simulated pedestrian based on the light distribution test measurement data shall conform to Table 7.

Further, the left-right diffusion function of the light scanned by the LED element is improved by the light-distribution diffusion glass lens unit 40, and the luminance increased by the protrusion of the protruded light diffusion lens is increased by the peanut-shaped glass lens cover 43 It is possible to prevent the glare and the afterglow and to prevent damage to crops and damage due to light pollution of the light distribution diffusion glass lens unit 40 in which crops and houses are present on both sides of the road.

7, the bubble level portion 60 is fixed to a predetermined position of the body 13 using a wrench in the right and left grooves, as shown in FIG. 7, do.

Therefore, the center of the bubble in the bubble tube is centered on the scale of the surface, so that the left and right balance angle of the lighting apparatus 1 is kept constant, thereby preventing the driver and the pedestrian from glare in the traveling direction.

That is, in order to prevent the afterglow of the light-distribution diffusion glass lens unit 40 and to prevent damages to crops and damage to the house due to light pollution of the light diffusion diffusion glass lens unit, a bubble level unit 60 Since the left and right equilibrium angles are maintained, the lighting standard of the road to the driver in paragraph 6.1 of the road lighting standard and the lighting standard of the road to the pedestrian in paragraph 6.2 are defined, and the direction of the driver and the pedestrian The traffic accident caused by glare can be prevented.

Here, the national standard that sets the road lighting standard, the road lighting standard for the driver, and the road lighting standard for the pedestrian is as follows.

6.1 Lighting standards for roads for drivers

The lighting standards for the road to the driver are as follows for the straight section, curved section and special section of the general part of the road.

6.1.1 Straight section of general part

Lighting standards for straight sections of general parts are as follows.

a) Classification of road lighting grade Classification according to the type of roadway grade, traffic type, and traffic volume.

b) Average road surface luminance (Lavg) The value to be maintained by the average road surface (Lavg) of the dry road surface viewed from the driver's position is not less than the value shown in Table 2 depending on the type of road. Measurements of average surface brightness are in accordance with Annex A.

c) Uo and lane axis uniformity (Ul) The driver of a dry road should have the above uniformity (Uo) and lane axis uniformity (Ul) not less than the values shown in Table 2 depending on the type of road. Uo is the ratio of the minimum luminance Lmin to the average road surface luminance Lavg on the road surface and Lmin is the maximum luminance Lmax on the center line of the same lane as the minimum luminance on the center line of each lane, (Lmin / Lmax). The measurement of these maximum luminance and minimum luminance (these are referred to as partial luminance) is in accordance with Annex A.

d) Threshold increment (TI) A measure of the reduction in visual acuity due to an incapacitated glare from the roadway luminaire. This value is a measure of the threshold luminance of the object when the luminaire is shrouded from the field of view, Is expressed as a percentage of the increment of the critical luminance of the object. Depending on the type of road, the TI of the lighting facility calculated by the following formula is preferably less than or equal to the value shown in Table 2. The calculation method of TI is in accordance with Annex B.

e) Lighting system The lighting system is the pole lighting system in principle. However, a high mast lighting system, a structure installation lighting system, a curtain lighting system, or the like may be used or used depending on the structure of the road, the traffic situation, and the like.

f) The light source to be used shall be selected according to the type of road, purpose, location conditions, etc., considering all the following matters.

1) Overall efficiency including lamp and ballast

2) Life span and lumen maintenance rate

3) Light source color and color rendering

g) Luminaires The luminaires shall, in principle, be the luminaires specified in KS C 7611, and those which satisfy the glare restrictions specified in Table 2 are to be selected and used depending on the type of road.

h) Arrangement and arrangement of luminaires Arrangement and arrangement of luminaires shall be as follows according to road width and sectional structure (see sub-section 1.2).

1) Installation height of lighting fixtures (H) Installation height of lighting fixtures shall be 10 m or more in principle. However, this restriction does not apply to cases where there is a need to restrict the lighting effects such as the position of the road structure and other structures, the prevention of glare on other roads, In principle, the installation height of the lighting fixtures on the roads with the same width and the same width shall be kept constant.

2) Arrangement of lighting fixtures Arrangement of lighting fixtures shall be selected from among one-side arrangement, zigzag arrangement, and facing arrangement depending on the cross-sectional structure of the road, the width of the road area (W)

Depending on the sectional structure of the road and the roadway portion width, these may be combined.

3) Overhang of the lighting apparatus (Oh) It is desirable to make the overhang of the lighting apparatus as short as possible.

KS A 3701: This restriction does not apply to trees that block light from road lights.

It is a principle that the overhangs are made constant in the lighting facilities of the continuous roads.

4) Angle of inclination of the lighting fixture (θ) The angle of inclination of the lighting fixture is, in principle, not less than 0 ° and not more than 5 °.

5) Spacing of lighting fixtures (S) The spacing of lighting fixtures shall satisfy the criteria of the overall uniformity (Uo) and lane axis uniformity (Ul) shown in 6.1.1 c) do.

6.1.2 Curved section of general part

The road lighting standards for curved section 1) are as follows.

a) General reference of lighting The standard of lighting, excluding the arrangement of luminaires and spacing (S) of luminaires, shall be in accordance with 6.1.1.

b) Arrangement and spacing of the luminaire The arrangement of the luminaire in the curved section depends on the arrangements of the luminaire of the straight section (hereafter referred to as the straight section) continuous here and the spacing of the luminaire depends on the radius of curvature thereof It shall be reduced in proportion to the distance between straight lines.

Care should be taken not to cause misjudgment of the existence of sharp curves or bends or the change in the shape of the road line due to the arrangement of the lighting fixtures, as well as to reduce the spacing of the lighting fixtures in curved or very curved areas with very small radius of curvature do.

6.1.3 Special places

Lighting standards for special locations are to be in accordance with 6.1.1. However, the following requirements shall be met for special areas such as the following a) to i).

a) Arrangement and arrangement of lighting fixtures in the vicinity of crossing points, junction points and junction points, confluence points and junction points, in addition to the general effect of road lighting, illuminates the forward direction of the vehicle traveling direction and approaches the intersection The driver of the vehicle should be aware that there is an intersection, that the vehicle is temporarily stopped in the intersection, or that the other vehicle in progress is in the forward position. Examples of standard arrangements of lighting fixtures at simple intersections are shown in Subsections 2.1 and 2.2.

In arranging and arranging lighting devices at crossing points or confluence and breaking points where the line structure is complicated, the driver of an automobile approaching each of the intersection points is required to adjust the position of each of the roads approaching the lines, It is preferable to examine the arrangement of the lighting apparatus by the perspective view.

b) Pedestrian crossing The arrangement and arrangement of lighting equipment in the vicinity of the pedestrian crossing shall be careful to ensure that the driver of the vehicle can observe and confirm the life of the pedestrian during crossing and crossing. A typical layout view of the luminaire at the crosswalk is shown in Figure 3.

c) The lighting of the bridge legs applies the lighting to be installed on the continuous roads here. However, it is possible to use a lighting device which can be matched with the leg structure and the leg shape as necessary.

d) The standard arrangement of lights in and around railway crossings with lights on roads before and after railroad crossings shall be in accordance with 6.1.3 b). However, care should be taken to reduce glare on the crew of the railway vehicle.

e) Stereo intersection The intersection of intersection and the lighting standard for the road near it shall be in accordance with 6.1.1 and 6.1.2. However, care should be taken to ensure that the lighting of the intersecting multiple roads does not give the driver of the car passing through the three-dimensional intersection an unpleasant glare or misleading line shape. If there is a tunnel or similar structure at the intersection, KS A 3703 shall be applied.

f) In the place where the nobok changes rapidly, the arrangement and arrangement of the lighting fixtures in the vicinity of the place where the nobok changes rapidly, especially the place where the road nob is reduced, the situation where the nobb is suddenly changed in addition to the general effect of the road lighting, Refers to a portion of a road whose radius of curvature is less than 1 000 m.

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g) Place where the shape of the line rapidly changes The arrangement and arrangement of the lighting equipment in the vicinity of the place where the shape of the plane line rapidly changes is to be in accordance with 6.1.2. The arrangements of the lighting fixtures in the vicinity of the point where the shape of the terminal line suddenly changes should be such that the driver of the vehicle can see and recognize the rapid change of the line shape in addition to the general effect of the road lighting.

h) Bus station The arrangement and arrangement of the lighting near the bus station should make it possible for the driver to see and be aware of the presence of the bus station and its surroundings in addition to the general effect of road lighting.

i) Parking and resting facilities In the parking lot and resting facilities, it is necessary to ensure the safety of the car and pedestrians, and the parking lot of KS A 3011 should be used as the lighting to be maintained.

6.2 Lighting standards for pedestrians It is desirable that the lighting of the roads for pedestrians is suitable for all of the following criteria.

a) Illumination The illuminance to be maintained on the roads used by pedestrians shall be not less than the values shown in Table 3 depending on the (nighttime) pedestrian traffic volume, area and location. However, the illuminance of the bicycle depository shall comply with the illuminance of the road with high traffic volume.

b) Lighting method Lighting method is the pole lighting method in principle. However, depending on the structure of the road and the traffic situation, the structure lighting method may be used or combined.

c) Light source Select an appropriate light source according to 6.1.1 f).

d) Lighting equipment shall comply with KS C 7611.

FIG. 8 is a view showing an LED streetlight apparatus to which an embodiment of the present invention is applied, and FIG. 9 is an example showing an application to the LED streetlight apparatus shown in FIG.

That is, the LED streetlight device as described above can be applied to various applications such as security, streetlight, and the like, which is applied by using LEDs, as shown in FIGS.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

An air vent portion inserted into an air passage formed between a plurality of radiating fins of the heat dissipating portion and an air vent portion closely fitted and fixed to a lower portion of the heat dissipating portion to enclose each of the LED elements, And a light distribution diffusion glass lens portion which is firmly fixed to the lower portion of the LED assembly and which assures the light distribution of the LED device. Accordingly, it is possible to prevent the yellowing and the salting away from the conventional lens composed of polycarbonate (PC) It is possible to fundamentally eliminate the discoloration and the lowering of the illuminance due to the air vent portion, and the energy is saved due to the maintenance of the lifetime and the high efficiency performance of the LED by improving the heat radiation by discharging the moisture- The light distribution of the LED element by the diffusion glass lens unit Diffusing the figure by more than a predetermined angle defined by the national standard KS C 7658 for street light and security light appliances, LED street light appliances, and LED security light appliances, as well as left and right diffusion functions, Shaped lens cover and reflector to prevent glare and to prevent the afterglow, and to provide a bubble level portion that maintains the left and right balance angle when the LED streetlight is installed, , And the optical mechanism characteristics of the road lighting fixtures for pedestrians satisfies the standard of KS A3701, which is the definition standard of the national standard KS A3701, it is possible to prevent the traffic accident caused by the glare of driver and pedestrians and to prevent damage to crops caused by light pollution LED streetlight device that can fundamentally prevent It is possible to make a very great progress in terms of accuracy and reliability of operation and further in performance efficiency and it is possible that the applicable LED street lamp apparatus is not only commercially available, Invention.

Claims (12)

A housing provided with a body and a cover
A heat dissipation unit in which a plurality of heat dissipation fins are annularly assembled on an upper surface of a body fixed to the power supply unit,
An LED assembly provided on an LED printed circuit board tightly coupled to a lower side of the heat dissipation unit, the LED accommodating unit being configured to surround each of the LED elements;
And a light distribution diffusing glass lens unit for diffusing the light emitted from the LED element at a predetermined angle,
The light distribution diffusion glass lens unit
A concave light diffusion glass lens which is eccentrically eccentrically recessed on one side of which the LED element is received and diffuses the refractive index of the light distribution of the LED element at a predetermined angle,
And a glass lens cover which receives and inserts the concave light diffusion glass lens into the lower portion of the body through a wrench,
The concave light diffusion glass lens
And an outer surface opposed to a surface of the LED element, which receives the LED element, is protruded in a one-sided recessed eccentric shape in order to maintain a light-distribution-oriented visible region of a diffusion region of 140 degrees or more when the light distribution angle of the LED element is 115 degrees or less LED street light fixture.
The heat sink according to claim 1,
And a plurality of heat radiating fins formed in a cylindrical shape having a serrated outer peripheral surface,
And a radiating fin supporting plate for fixing the plurality of radiating fins at predetermined intervals to fix the radiating fin supporting plate to the body.
The heat sink according to claim 2,
Further comprising an air passage through which one of the plurality of radiating fins and the radiating fin supporting plate penetrates to induce a convection phenomenon of the air.
The air conditioner according to claim 3,
Wherein at least one of heat and humidity is discharged to the outside by the convection of air, and at least one of the intake air and the dust is prevented from entering into the interior, and the air vent is inserted.
delete The light source device according to claim 1,
And a silicone chamber for preventing breakage of the light-distribution diffusion glass lens portion and for dustproofing and waterproofing when the glass lens cover is assembled to the body is provided on the upper surface of the concave light diffusion glass lens.
delete 2. The diffractive optical element according to claim 1,
And an embossed shape in which convex shapes of a predetermined size are repeatedly repeated in order to prevent glare.
delete delete The light source device according to claim 1,
Further comprising: a reflector provided at a predetermined position of the glass lens cover to prevent post-diffusing light of the concave light diffusion glass lens.
The LED lighting device according to claim 1,
Further comprising a bubble level portion for maintaining a left / right balance angle when the light distribution diffusion glass lens portion is installed.

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