KR101024526B1 - Led streetlamp having led fog lamp - Google Patents

Abstract

PURPOSE: An LED streetlight with an LED fog light is provided to focus light on a specific region by distributing the light with high brightness through a pair of reflection plates. CONSTITUTION: A first window(10) is made of semitransparent materials. A first frame(12) fixes the first window. A second window(14) is made of semitransparent materials and is arranged in a row to make a step with the first window. A second frame(16) fixes the second window. A housing(18) is combined with the rear of the first window. A reflection plate is formed between the first window and the housing. An LED lamp module is mounted between the reflection plate and the first window. A high brightness collecting shade is formed between the LED lamp module and the reflection plate. An LED fog light module is formed between the second window and the housing. A wiring pipe formed between a pair of heat sinks.

Description

LED street lamp having LED fog lamp {LED streetlamp having LED fog lamp}

The present invention relates to an LED street light having an LED fog light. More specifically, by forming a street light with LEDs having high brightness, low heat generation, and low power, and integrally mounting LED fog lights adjacent thereto, it is optimally utilized on coast roads and mountain roads vulnerable to fog, and is a pair that is symmetric with each other. It is equipped with a reflector of each and composed of two bent sides of each reflecting plate to disperse the high brightness light generated from the LED lamp at an appropriate angle to concentrate the light in the required area, the end of the heat radiation fin is opposite the wiring It has a curved plate that bends in the direction to dissipate the heat generated from the inside quickly and to the LED streetlight with LED fog light that maximizes the heating effect because the heat radiation fins are bent in the opposite direction to the open wiring. It is about.

In general, streetlights are provided at predetermined intervals to illuminate the road at night. The street light is provided with an illuminance sensor, and when the ambient light is below the threshold, the illumination sensor detects this and turns on the street light. When the ambient light exceeds the threshold, the street light is turned off.

Conventionally, a high-pressure mercury lamp or sodium lamp was used as a light source of a street lamp, and the surroundings were illuminated by irradiating white, yellow, or blue light. However, such high pressure mercury lamps and sodium lamps have a problem in that light conversion efficiency is low, various colors cannot be produced, and environmental pollution is a major culprit.

Recently, with the advent of the low-carbon green growth era, the green environment movement is developing internationally. In line with this international trend, the Korean government has also established and actively supports the five-year green growth plan. In addition, there is a need for energy saving in preparation for the era of high oil prices.

Among the low-carbon green growth sectors, light emitting diodes (LEDs) are in the spotlight. LED is a new technology that uses semiconductor devices for lighting. Its low power consumption, semi-permanent life, and the ability to produce various colors are also possible. In addition, LED is a product that meets the trend of low carbon green growth due to its high light conversion efficiency, no mercury, and low carbon dioxide emission.

Accordingly, attempts have been made to utilize LED as a light source of a street light. However, general LEDs may cause light diffusion and brightness deterioration due to the deposition of phosphors, thereby exposing a limitation in generating high luminance light. This is due to a certain degree in the uniform uniform reflector structure, and also due to the absence of a structure that produces a high brightness light by condensing the light around the LED lamp optimally.

Meanwhile, many coastal roads are built in coastal cities so that you can feel the night view of the city and the mood of the coast. The coastal road is far from the city, and higher brightness street lights are needed for safe operation. Moreover, because of the frequent occurrence of dense fog on the coast, it is very vulnerable to sea fog and fog.

Because of this problem, most of the cars on the coastal road are turned on with fog lights. Vehicle fog lamps are typically composed of halogen lamps, high power consumption and relatively high current flows when operating for a long time, such as fire or short circuit due to heat generation, there is a problem of short life.

The present invention has been made to solve the above problems, and in particular, can be optimally utilized in coastal roads vulnerable to fog, and the light is concentrated at the required area by dispersing the high brightness light generated from the LED lamp at an appropriate angle. The purpose of the present invention is to provide an LED street light having an LED fog light that can dissipate heat generated from the reflector, the high brightness condenser and the LED lamp module to the outside and maximize the heating effect.

LED street light having an LED fog light according to the present invention devised to achieve the above object comprises a first window of translucent material; A first edge surrounding the edge of the first window to fix the first window; A second window of translucent material arranged in a line adjacent to the first window in a stepped manner; A second border surrounding the edge of the second window to fix the second window; A housing coupled to the rear of the first window; A reflection plate provided between the first window and the housing; An LED lamp module mounted between the reflector and the first window; And an LED fog light module provided between the second window and the housing.

In addition, the housing may include a pair of heat sinks in which a plurality of heat dissipation fins having different heights are arranged in a curved plate shape and spaced apart from each other.

In addition, a wiring tube may be provided between the pair of heat sinks as a passage for wiring to provide power to the LED lamp module and the LED fog light module.

In addition, the heat dissipation fins may be longer in length toward the wiring conduit, and an end portion of the heat dissipation fin may be bent in a direction opposite to the wiring conduit.

The reflecting plate may include a pair of first reflecting plates and a second reflecting plate that are symmetrical to each other with respect to the wiring tube, and the first reflecting plate and the second reflecting plate may each include a first surface and the first reflecting plate adjacent to the wiring tube. The second surface may be adjacent to one surface and bent relative to the first surface.

According to the present invention, a street lamp is formed of an LED having high brightness, low heat generation, and low power, and an LED fog light is integrally mounted adjacent to the LED lamp, so that the road can be optimally used for coastal roads and mountain roads vulnerable to fog.

According to the present invention, a pair of reflecting plates are symmetrical to each other, and each reflecting plate is formed of two curved surfaces to disperse high-brightness light generated from the LED lamp at an appropriate angle, thereby concentrating light in a required area. It can be effective.

In addition, according to the present invention, the end of the heat radiation fin is curved in the opposite direction of the wiring tube, so that the heat generated from the reflector, the high brightness condensing shade and the LED lamp module can be quickly dissipated to the outside, and is open. The heat radiation fins are bent in the opposite direction to the conduit to maximize the heating effect.

1 is a perspective view of an LED street light having an LED fog light according to a preferred embodiment of the present invention;
2 is a front view of an LED street light having an LED fog light according to a preferred embodiment of the present invention;
3 is a rear view of an LED street light having an LED fog light according to a preferred embodiment of the present invention;
4 is a right side view of FIG. 1;
5 is a perspective view illustrating an internal shape in which the first housing is separated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible, even if shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the following will describe a preferred embodiment of the present invention, but the technical idea of the present invention is not limited thereto and may be variously modified and modified by those skilled in the art.

1 is a perspective view of an LED street light having an LED fog light according to a preferred embodiment of the present invention. 2 is a front view of an LED street light having an LED fog light according to a preferred embodiment of the present invention. 3 is a rear view of an LED street light having an LED fog light according to a preferred embodiment of the present invention. 4 is a right side view of FIG. 1, and FIG. 5 is a perspective view illustrating an internal shape in which the first housing is separated.

LED street light having an LED fog light according to an embodiment of the present invention, referring to Figures 1 to 5, the first window 10, the first frame 12, the second window 14, the second frame ( 16, housing 18, reflector 32, LED lamp module 34, high brightness condenser 36, LED fog light module (not shown), wiring conduit 38, and heat sink 40. Is done.

The first window 10 is formed of a transparent or translucent material covering the reflective plate 32, the high brightness condensing shade 36, and the LED lamp module 34. The first window 10 preferably has a curved shape in order to further extend the region to which light is irradiated. In addition, the inside of the first window 10 prevents the LED lamp module 34 and the reflector 32 from getting wet, and the light emitted from the LED is emitted through the first window 10 without passing through the air medium. It is desirable to be kept in a vacuum so that it can be.

Although not shown, a convex lens may be provided at a portion of the first window in which the LED lamp module 34 is located. The convex lens serves to protect the surface of the PCB (not shown) on which the LED lamp module 34 is mounted and to improve optical characteristics. In this case, the convex lens has an outer curved surface and an inner curved surface, and the curvature radius of the outer curved surface is preferably formed to be smaller than the radius of curvature of the inner curved surface. By using such an optical convex lens method, it is possible to secure a high directivity, high photosensitivity, and a wide range of illumination to enable long-distance illumination.

The first edge 12 surrounds the edge of the first window 10 to couple and fix the first window 10 to the housing 18. A portion of the first edge 12 adjacent to the second window 14 preferably has a streamlined surface shape along the curved surface of the first window 10.

The second window 14 is formed of a transparent or translucent material covering the LED fog light module. The second window 14 has a planar shape unlike the first window 10. The reason for this is that when the cars are facing each other at night or directly following the vehicle in front of them, the angle of irradiation may cause the driver's vision to be impaired and cause an accident.

The second window 14 forms a step with respect to the first window 10 and is disposed adjacent to the first window 10 in a line. As a result, the first window 10 is more protruding than the surface of the second window 14. The reason why the first window 10 and the second window 14 are not on the same plane but forms a step is because the beaming direction should be the same as the driving direction of the vehicle.

Since the LED fog light module (not shown) has a longer life compared to the halogen lamp having a short life, it is possible to reduce the cumbersome and resource waste of replacing the lamp. In addition, the LED fog light module is less radiant heat than halogen lamps do not fade the plating layer of the reflector plated with chromium or the like can prevent the situation in which the indirect reflection effect of light is reduced. In addition, since the LED fog light module generates less heat than halogen lamps, the size of the through hole for heat emission can be reduced, thereby preventing dust from entering into the fog light.

The second edge 16 surrounds the edge of the second window 14 to couple and fix the second window 14 to the housing 18. It is preferable that the inside of the second window 14 is likewise maintained in a vacuum state.

The housing 18 is coupled to the rear of the first window 10. The housing 18 has an interior space for accommodating the reflector 32, the LED lamp module 34, and the high intensity light collecting shade 36 therein. Referring to FIG. 4, the housing 18 may be formed in an M or W shape. This is because the overall shape of the surface of the reflecting plate 32 mounted inside the housing 18 takes the form of an M or W shape. The wiring tube 38 is provided at the center of the housing 18, and the housings on both sides of the wiring tube 38 are symmetrical with each other.

The reflecting plate 32 is provided between the first window 10 and the housing 18. The reflecting plate 32 includes a pair of first reflecting plates 24 and a second reflecting plate 30 which are symmetrical to each other with respect to the wiring conduit 38.

The first reflector 24 is bent at a predetermined angle with respect to the first surface 20 and the first surface 20 adjacent to the wiring tube 38 to form a substantially V-shape. The second surface 22 is provided.

Similarly, the second reflecting plate 30 is bent at a predetermined angle with respect to the first surface 26 and the first surface 26 adjacent to the wiring tube 38 and the first surface 26 to form an approximately V shape. It has a second surface 28 to be made.

The LED lamp module 34 is mounted on the first surface 20 of the first reflecting plate 24 and the first surface 26 of the second reflecting plate 30. Since the first surface 20 of the first reflecting plate 24 and the first surface 26 of the second reflecting plate 30 are bent at a predetermined angle to each other, the first surface 20 of the first reflecting plate 24 is formed on the first surface 20 of the first reflecting plate 24. The mounted LED lamp module and the LED lamp module mounted on the first surface 26 of the second reflecting plate 30 are directed to the left and right, and the optical paths form a predetermined angle to each other. This is to achieve efficiency by selecting and concentrating by concentrating light in a required area by dispersing high brightness light at right angles.

5 illustrates an example in which a pair of LED lamp modules 34 are mounted on the reflecting plate 32 for convenience, and on the other hand, a pair of spaced predetermined distances from each other on the first surface 20 of the first reflecting plate 24 is illustrated. The LED module is mounted, and a pair of LED modules spaced apart from each other by a predetermined distance on the first surface 26 of the second reflecting plate 30 may be configured to mount two pairs of LED lamp modules as a whole. Of course, more than that is possible depending on the amount of light required.

The LED lamp module 34 is formed by integrating electronic devices including LEDs on a PCB (not shown). In this case, the PCB is usually formed of a synthetic resin material, but may be formed of a metal material. Metal PCB has better heat dissipation effect than general PCB. However, due to the trend of high density integration of the LED chip and small weight of the LED module, there may be a limit in dissipating a large amount of heat generated in the LED device, thereby minimizing the risk of damage to the LED device due to heat accompanying light emission. For this purpose, the metal PCB is preferably provided with a heat dissipation member.

Although not shown, a mixture layer having excellent thermal conductivity may be provided between each LED lamp module 34 and the PCB so that heat generated from the LED lamp module 34 may be quickly transferred to the PCB. As the mixture layer, a mixture of epoxy resin, silver (Ag), and ceramic particles may be used. Ag / ceramic / epoxy acts as a conductive adhesive, and silver particles can greatly improve electrical conductivity and heat distortion temperature and prevent denaturation of epoxy resins.

In order to further improve the heat dissipation function of the LED lamp module 34, it is also possible to form a heat dissipation coating layer on the upper or lower surface of the PCB. The heat dissipation coating layer may be made of, for example, a mixture (Ag / ceramic / epoxy) of 60 to 70% by weight of epoxy resin, 20 to 25% by weight of silver (Ag) particles, and 10 to 15% by weight of ceramic particles. When the heat dissipation coating layer has such a structure, it can play a role as a conductive adhesive, and the improvement of electrical conductivity and heat distortion temperature (thermal conductivity coefficient of 3 to 5 W / (m · K)) by the silver particles and modification of epoxy resin Prevention can also be expected.

The high brightness condensing shade 36 fixes the LED lamp module 34 to the reflecting plate, and simultaneously condenses the light generated by the LED lamp module 34 so that it can be irradiated by concentrating on a specific region in a specific direction. In addition, the high brightness concentrating shade 36 is located at the rear and side of the LED lamp module 34, and also serves to reflect the light generated from the LED to the front.

In order to maximize the reflection efficiency and the light collection efficiency of the light generated from the LED, the high brightness concentrating shade 36 is bounded by the first protrusion 42 and the second protrusion 44, and the V-shaped upper shade 46 and the U-shaped lower portion It consists of a lampshade 48. The first protrusion 42 and the second protrusion 44 allow the V-shaped upper shade 46 to protrude outward more than the U-shaped lower shade 48. The protruding V-shaped upper shade 46 collects the light generated from the LED lamp module 34 into a wider area, and then concentrates the light forwardly and downwardly through the reflective surfaces of both side plates forming the V-shaped. Play a role.

On the other hand, the U-shaped lower shade 48 forms a wide curved surface, and collects the light reflected from the V-shaped upper shade 46 and the light transmitted from the LED lamp module 34 to the front and lower direction (fog lamp LED module direction) It distributes widely to) and performs research into a certain area. In addition, the U-shaped lower shade 48 is provided with an extension 50, thereby improving the directivity by adjusting the direction of the light irradiated through the U-shaped lower shade 48.

On the surface of the high brightness light collecting shade 36, a metal layer is formed by plating or depositing a metal element such as nickel (Ni) or chromium (Cr ³⁺ ). Such a metal layer has an advantage that it is very beneficial to effectively reflect light to eliminate the concentration of light or loss of light (Loss). In addition, the surface of the high brightness light collecting shade 36 is not limited to forming a metal layer through plating or metal element deposition. For example, the high brightness light collecting shade 36 may be formed by press bonding metal materials such as stainless steel and aluminum.

The wiring tube 38 is located at the center of the housing 18, that is, at the center of the reflecting plate 32, and draws out wiring for supplying power to a driving unit such as an LED converter (not shown) built in the housing 18. Do this. In addition, the wiring inserted into the wiring conduit 38 supplies power to the LED lamp module and the LED fog light module.

The heat sink 40 is provided at the rear of the housing 18, and a plurality of heat sink fins having different heights are arranged. The heat sinks 40 are provided to be spaced apart from each other by a predetermined left and right pairs with respect to the wiring pipe 38.

The heat dissipation fins have a structure in which the length of the heat dissipation fins gradually increases toward the wiring conduit 38, and the ends of the heat dissipation fins are bent in the opposite direction to the wiring conduit 38 to have a curved plate shape. This is for quickly dissipating heat generated from the reflector 32, the high brightness condensing shade 36, and the LED lamp module 34 to the outside, and the wiring conduit 38 is open because the direction of the conduit 38 is blocked by the wiring conduit. This is because the opposite direction can maximize the heating effect relatively.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

The present invention can be widely applied to the field of design and manufacture of LED street lights, especially LED street lights installed in fog-prone coastal roads.

10-First Window 12-First Border
14-Second Window 16-Second Border
18-housing 32-reflector
34-LED lamp module 36-high brightness condenser
38-conduit 40-heat sink

Claims (5)

A first window of translucent material;
A first edge surrounding the edge of the first window to fix the first window;
A second window of translucent material arranged in a line adjacent to the first window in a stepped manner;
A second border surrounding the edge of the second window to fix the second window;
A housing coupled to the rear of the first window;
A pair of heat sinks spaced apart from each other in which a plurality of heat dissipation fins having different heights are formed in the housing in a curved plate shape;
A reflection plate provided between the first window and the housing;
An LED lamp module mounted between the reflector and the first window;
It is provided between the LED lamp module and the reflector plate and surrounds the rear and side of the LED lamp module, a first protrusion, a second protrusion spaced apart from the first protrusion and facing the first protrusion, the first protrusion and A high brightness concentrating shade including a V-shaped upper shade provided on one side among the second protrusions, and a U-shaped lower shade provided on the other side between the first protrusion and the second protrusion and having an extension at an end thereof;
An LED fog light module provided between the second window and the housing; And
A wiring conduit provided between the pair of heat sinks and serving as a passage for wiring to provide power to the LED lamp module and the LED fog light module.
Including;
The heat dissipation fins are longer in length toward the wiring tube direction, the end of the heat dissipation fin LED lamp, characterized in that bent in the opposite direction of the wiring tube. delete delete delete The method of claim 1,
The reflecting plate includes a pair of first reflecting plates and a second reflecting plate that are symmetrical with respect to the wiring conduit, wherein the first reflecting plate and the second reflecting plate each have a first surface and the first surface adjacent to the wiring conduit. LED street light having an LED fog light, characterized in that it has a second surface adjacent to and bent relative to the first surface.

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