KR101476326B1 - Bar type outdoor light emitting diode lighting apparauts - Google Patents

Abstract

An outdoor bar type high output LED lighting device of the present invention comprises: a bar type heat sink resin injection case (10) which is made of a thermal conductive resin material having thermal conductivity of 4 to 12 W/m-K and has radiation pins (12) formed on the back side through an insert injection forming process. A heat diffusion metal plate member (16) is buried to be fixed on a ceiling surface of a mounting space unit (14) of the bar type heat sink resin injection case (10) while exposing one surface thereof. The heat diffusion metal plate member (16) includes a bar type LED light source unit to display a total output of 30 to 80 W of multiple LED dots (22) which are arranged to be spaced apart from each other in series so that an average temperature can be less than or equal to 85°C in thermal stabilization in the LED light source unit by a heat radiation reaction through the bar type heat sink resin injection case (10) having the heat diffusion metal plate member (16). A heat sink case (10) is fastened with a cover plate (24) having light distribution lenses (26) which respectively correspond to the LED dots (22) arranged to be spaced in series to be adjacently located and are formed to be integrated so that light distribution for a lighting device can be formed by diffused light formed while a dot beam of each of the LED dots (22) penetrates each of the light distribution lenses (26).

Description

BAR TYPE OUTDOOR LIGHT EMITTING DIODE LIGHTING APPARAUTS FOR OUTDOOR

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED (Light Emitting Diode) lighting device for outdoor use, and more particularly to a bar type LED which can be applied to an outdoor such as a street lamp, a security lamp, About a luminaire

A high power LED lighting fixture with a high brightness of 30 W or more can secure floor illumination even at a high installation height (for example, a height of 8 m for installation of a street lamp and a height of 4 ~ 6 m for a security installation) Road tunnels, underground roads, large-scale facilities such as power plants, and the like.

However, in order to achieve a high output of 30 W or more, a large current of more than a few hundred mA is injected into a small LED chip device, so that the problem of heat treatment for high temperature is emerging as the biggest issue in a high output LED module.

That is, a high-power LED of 30 W (W) or higher consumes a relatively large amount of electric power, has a high current, and has a high luminous efficiency. However, since the heat generated by the LED chip is very high, The chip itself or the chip package is deteriorated. This results in a decrease in the luminous efficiency, such as lowering the illuminance of the LED lamp, and shorten the lifetime of the LED chip. Therefore, it is essential to develop heat dissipation technology in order not to damage the semi-permanent lifetime, which is the greatest feature of LED.

And high-output LED lighting for outdoor use including LED street lamps should obtain high efficiency certification (KS certification is over 75lm / W). Specifically, it should be possible to secure the floor roughness even at a high installation height required for the corresponding luminaire, and to ensure the specified horizontal surface roughness. Also, test standards such as light efficiency (lm / W), lumen maintenance, and color rendering must meet the requirements.

However, in the realization of high power LED lighting, high efficiency certification according to various test standards, maintaining the size suitable for LED lamp, and ensuring suitable range of light required for street lamp in LED chip with straightness, excessive heat dissipation due to high output of LED module For example, it is not easy to solve problems such as shortening the lifetime of the LED chip, inducing the failure of the printed circuit board, and frequent replacement of the SMPS. Therefore, an improvement measure is desired.

In addition, if the lighting fixtures with low manufacturing cost and light weight can be implemented in the development of high power LED lighting fixtures, consumers will get a great response.

Open Utility Model Publication No. 20-2011-0005713 "Bar type LED light"

Accordingly, an object of the present invention is to provide a high output LED lamp for street lamps and outdoor applications such as underground roads requiring high power of 30 W or more, road tunnels, security, etc., A bar type LED lamp for a door.

Another object of the present invention is to provide a bar type LED lamp for outdoor use which realizes an LED lamp for a high output outdoor power of 30 W or more and solves the problem of heat dissipation,

A high power LED lamp for outdoor use according to the present invention includes a bar type heat sink resin injection case (10) having heat dissipation fins (12) formed of a thermally conductive resin material having thermal conductivity of 4 to 12 W / mK The heat spreading metal plate member 16 is embedded and fixed so as to expose one surface of the mounting space 14 of the bar type heat sink resin injection case 10, A bar type LED light source unit in which the total output of the LED dots 22 is 30 to 80 W is provided by interposing and fixing at least one high heat dissipation substrate 20 in which a plurality of LED dots 22 are arranged horizontally, And the average temperature during thermal stabilization in the LED light source unit is 85 ° C or less due to the heat dissipation action through the bar type heat sink resin injection case 10 having the light distribution pattern corresponding to each of the laterally arranged LED dots 22 For lens (2 The cover plate 24 integrally arranged with the heat sink case 10 is fastened to the heat sink case 10 so that the dot beam of each LED dot 22 is transmitted through the respective light distribution lenses 26, And a plurality of light emitting diodes (LEDs) for driving the LEDs.

Each of the light distribution lenses 26 is formed by a parabolic concave inner surface 32 and an aspherical convex outer surface 34 so that the dot beam emitted from the LED dot 22 is incident on the parabolic concave surface of the light distribution lens 26 And the diffuse light distribution is displayed through the second refraction at the aspherical convex outer surface 34 following the first refraction at the inner surface 32.

The cover plate 24 and the light distribution lens 26 of the present invention are formed of one of polycarbonate (PC) and polymethyl methacrylate (PMMA).

The pivot mounting holes 40 are formed on both left and right ends of the bar-type heat sink resin injection case 10 so as to adjust the lighting direction of the luminaire.

In addition, as an additional feature, an installation surface 30 having a fastening portion 30a for mounting a surveillance camera module is provided on the outer surface of the cover plate 24,

Preferably, the mounting space portion 14 of the heat sink resin injection case 10 is formed with a receiving groove 42 for receiving an internal component for an AC-driven LED module.

At this time, the support surface 44a on which the SMPS pack is installed is formed in the protruding box portion 44 protruding upward from the bar-type heat sink resin injection case 10 by the formation of the receiving groove 42.

According to another aspect of the present invention, there is provided a high output LED lamp for outdoor use, which comprises a bar type heat sink resin injection case 10 having heat dissipation fins 12 formed of a thermally conductive resin material having a thermal conductivity of 4 to 12 W / mK, A thermal diffusion metal plate member 16 having one side surface exposed on both sides of the ceiling of the mounting space portion 14 of the bar type heat sink resin injection case 10 and having a heat dissipating blade 16a serving as both of the resin- And a high heat dissipation substrate 20 having a plurality of LED dots 22 arranged transversely is fixed to an exposed plane of each of the thermal diffusion metal plate members 16 of the left and right mounting space portions 14 so as to fix the LED dot Type LED light source unit in which the total output of the LED light source units 22 and 22 is 30 to 80 W is provided so that the bar-type heat sink resin injection case 10 having the heat- The cover plate 24 is integrally arranged with the light distribution lenses 26 corresponding to the LED dots 22 arranged in the horizontal direction and is fastened to the heat sink case 10, And the light distribution for the luminaire is formed by the diffusion light formed while transmitting the dot-beam AC-driven LED light source portion of the LED dot 22.

The present invention can be applied to high power LED lamps for outdoor use such as underground roads requiring high power of 30 W or more, road tunnels, security lamps, street lamps and the like, and the weight of the luminaire It is light and economical, it can solve the heat dissipation problem, can secure the wide range, and has excellent productivity.

FIG. 1 is a perspective view illustrating an assembled perspective view of a bar type LED lamp for an outdoor unit according to an embodiment of the present invention,
FIG. 2 is an exploded perspective view of a bar type LED lamp for an outdoor unit according to an embodiment of the present invention,
3 is an external view of a heat sink injection case and a cover plate according to the present invention.
Fig. 4 is a cross-sectional view of Fig. 1,
5 is a cut-away perspective view of the heat-diffusing metal plate integrated into the insert injection-molded heat-sink injection case,
FIG. 6 is a perspective view of a recessed cut surface of a light distribution lens formed integrally with a cover plate in accordance with the present invention,
Fig. 7 is a light distribution diagram of the light distribution lens of Fig. 6 taken along the YY-
Fig. 8 is a light distribution diagram of the light distribution lens of Fig. 6 taken along the XX-
Fig. 9 is a characteristic diagram of the orientation angle graph of the light distribution lens of the present invention. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The LED lamp (A) according to the embodiment of the present invention can be mass-produced by insert injection molding using a resin material, and is advantageous in that it is lightweight and economical. In addition, it is inevitable to realize a high output LED lamp of 30 to 80 W And the heat dissipation problem which is followed by the heat dissipation.

The heat generated from a high power LED lamp with a power of 30 to 80 W lowers the light flux (amount of emitted light) of the LED element and shortens the lifetime of the LED element and SMPS (or switching circuit). Therefore, heat dissipation technology that can effectively transfer heat generated from a high-power LED luminaire to the outside should be considered.

In the case of LED lighting with heat dissipation technology, the junction temperature of the LED light source should be kept below 65 ° C. To maintain the lifetime of the LED light source for more than 50,000 hours, the LED junction temperature should be 85 ° C or less.

In the present invention, a bar-type heat sink resin injection case 10 having a radiating fin as shown in FIG. 1 is manufactured at the time of manufacturing a 30 to 80 W high-output LED lamp A having an LED junction temperature of 85 ° C or less It is manufactured by insert injection molding using thermally conductive resin material with heat dissipation.

In the present invention, the thermally conductive resin used as the material of the resin injection case 10 for a heat sink has the general property and advantage that the general plastic has, and the free design and the economical efficiency. to provide. In addition, the thermally conductive resin also serves as an electrically insulating material because of inherent characteristics of plastic or polymer.

That is, the thermally conductive resin (i.e., thermally conductive plastic) employed in the present invention has advantages of weight saving, free design, low thermal expansion coefficient, chemical resistance, excellent thermal conductivity, and insulation.

When the output of the LED lighting is less than 20W, it is not necessary to worry about the electric shock. However, since the high output LED lamp of 30 ~ 80W will flow a very high current, it is necessary to take measures for insulation when manufacturing the heat sink case. However, since the thermally conductive resin employed in the present invention has good electrical insulation properties, it is not necessary to take any other measures.

In addition, the heat sink case for high power LED lamps is excellent in thermal conductivity by using a high thermal conductivity metal material such as cast aluminum or cast zinc alloy material. However, such a metal material heat sink case is die- It is very disadvantageous in terms of work yield, cost, and weight as compared with resin injection molding. In other words, metal case heat sink case must be cast with die casting, then milling and finishing for cutting and surface treatment, and drilling for drilling, and then powder coating should be performed. do.

On the contrary, the resin injection case 10 for a heat sink injected with the thermally conductive resin material employed in the present invention does not require additional machining work or painting work after injection molding and has an advantage that it is much lighter than a metal material in terms of weight have.

In the present invention, when employing the thermally conductive resin as the material of the heat sink resin injection case 10, the inventor of the present invention has obtained a number of experiments, and as a result, it has been found that a heat radiation function, The thermal conductivity of the thermally conductive resin material capable of injection molding was selected to be 4 to 12 W / mK (Watts / meter-Kelvin), and it was confirmed that the more suitable range was 5 to 10 W / mK.

An example of one heat-conductive resin material is applied in the present invention and the product name LUVOCOM ^® is thermally conductive plastic material, the thermal conductivity range is the range from 0.2W / mK to 22W / mK.

In the present invention, the thermal conductivity range of the thermally conductive resin material to be employed is 4 to 12 W / mK, and more preferably 5 to 10 W / mK. At the same time, the thermally conductive resin material of the present invention is electrically insulated.

The thermoconductive resin employed in the present invention contains a carbon component in the resin component. When the carbon content is increased, the thermal conductivity is increased, but the moldability is degraded.

The present inventors have found through numerous experiments that if the thermal conductivity exceeds 12 W / mK, the carbon content becomes too high and the injection moldability lowers. If the thermal conductivity is less than 4 W / mK, the moldability is greatly improved, There is a critical significance of the range of the thermal conductivity in the case where the heat radiation effect that makes the temperature below 85 ° C is difficult.

In addition, in the present invention, a thermally conductive metal plate member 16 having an excellent thermal conductivity is additionally provided in the inner heat generating base portion for faster heat transfer from the 30 to 80 W high power LED light source portion which generates high heat while using the thermally conductive resin material case. In other words, when the bar type heat sink resin injection case 10 having the cooling fins 12 formed in an inverted form is insert-molded by a thermally conductive resin material, as shown in FIG. 2, the mounting space 10 of the resin injection case 10, The heat-diffusing metal plate member 16 is inserted into the heat-dissipating metal plate member 16 so that the heat-diffusing metal plate member 16, .

As shown in FIG. 5, a plurality of heat dissipating blades 16a are integrally formed in the back portion (buried portion) of the thermal diffusion metal plate member 16. The heat dissipating plate 16 is made of a heat- Thereby enhancing the bonding force with the resin (thermally conductive plastic) and allowing the heat to diffuse and be discharged to and from the case made of the thermally conductive resin material more quickly.

The thermally conductive resin material bar type heat sink In the mounting space portion 14 of the resin injection case 10, two thermally-dissipative metal plate members 16 formed in a line and spaced apart as a preferred example according to the present invention are buried .

A space is provided between the two thermally-diffusing metal plate members 16 that are fixedly exposed on one plane in the mounting space portion 14, and the space for the LEDs in the space- A receiving groove 42 for receiving a line filter for removing various noise included in the electric wire is formed.

The high power LED light source unit having a total output of 30 to 60 W is mounted on the surfaces of the two thermally conductive metal plate members 16 on the right and left sides of the mounting space unit 14.

As shown in FIG. 1, on the respective surfaces of the left and right thermal diffusion metal plate members 16, the high heat dissipation substrate 24 in which the LED dots 22 are arranged at regular intervals can be fastened and fixed. Board type LED dots 22 may be mounted on the thermal diffusion plate 16 in a line at regular intervals.

The LED dot 22 according to the present invention may be formed of one to a plurality of LED chips as a spot shape capable of increasing the light efficiency. The size of the LED dot 22 can be realized by only an adult thumbnail size.

When the LED dot 22 is configured as a COB type, the output per dot can be selected within the range of 1W to 30W.

The bar-type LED light source unit of the present invention is preferably a metal base substrate in order to improve the thermal conductivity of the high heat dissipation substrate 24 in which the LED dots 22 are arranged at regular intervals, Is 30 ~ 80W.

In configuring the bar type LED light source unit according to the present invention, the left and right independent LED light source units (first and second LED light source units) can be set to have the same value within a range of 15W to 40W, respectively, And the independent LED light sources (first and second LED light sources) on the right side may be different from each other so that they are 20W and 60W, respectively.

The high output type bar type LED lamp unit A of the present invention, which is implemented to have first and second LED light sources of different outputs, is provided as a set in, for example, a tunnel or the like (for 60W) You may. Therefore, when the tunnel is provided along the road, only one bar type LED lamp (A) of the present invention having a function such as a tunnel and the like can be installed, which is an advantage according to the present invention.

As described above, in the exposed planes of the thermal diffusion metal plate members 16 of the left and right mounting space portions 14, the highly heat dissipative substrate 20 having a plurality of LED dots 22 arranged horizontally is fixed to the surface of the COB type LED dots 22 Type LED light source unit in which the total output of the LED dot lights 22 is 30 to 80 W by arranging the LED light sources 22 at predetermined intervals so as to form a bar type LED light source unit in which the total output of the LED dot 22 is 30 to 80 W, The present inventor has confirmed that the bar type heat sink resin injection case 10 of the present invention can sufficiently radiate heat.

That is, the heat generated from the LED light source portion is rapidly transmitted to the thermal diffusion plate member 16 through the substrate, and then the heat sink resin injection case 10 made of a thermally conductive resin material having 4 to 12 W / mK thermal conductivity, The heat is released through the LEDs 12 so that the average temperature during the thermal stabilization in the LED light source is maintained at 85 캜 or lower.

As described above, the thermally conductive resin bar type heat sink resin injection case 10 of the present invention is sufficiently lighter than the metal heat sink case such as aluminum, while having a sufficient heat radiator function for the high output LED lamp, .

In the present invention, in the construction of the bar type heat sink resin injection case 10, the left and right ends of the bar-type heat sink resin injection case 10 are provided with, A pivot mounting hole 40 is formed.

In order to improve the installation convenience of the LED lighting device according to the present invention, a rectangular box portion 44 protruding upward is formed at the back portion of the bar-type heat sink resin injection case 10 corresponding to the formation position of the receiving groove 42, The upper surface portion of the rectangular box portion 44 serves as a support surface 44a on which a hexahedral SMPS pack for converting AC power to DC power is installed.

The SMPS pack to be provided for converting the AC power to the DC power is wrapped around the box-shaped cover while being placed on the receiving surface 44a of the rectangular box portion 44 and is tightly fixed to the rectangular box portion 44, It is also good to look at cosmetics.

Meanwhile, the bar type high power LED lamp unit A according to the embodiment of the present invention includes light distribution lenses 26 corresponding to the plurality of LED dots 22 arranged transversely on the left and right high heat dissipation substrates 20 The cover plate 24 integrally molded is fastened to the heat sink case 10 so that the dot light beams from the respective LED dots 22 are transmitted through the respective light distribution lenses 26, Thereby forming a distribution.

When the cover plate 24 is fastened to the heat sink resin injection case 10, the internal mounting space portion 14 is made watertight from the outside by using the gasket 18, and the wiring lead- (Also referred to as a cable locker) or the like to prevent the internal mounting space portion 14 from being affected by the external environment.

The following description will be made more specifically about the formation of a light distribution distribution suitable for a luminaire by the shape of the dot beam and the corresponding light distribution lens 26 of the bar type high power LED lamp unit A of the present invention.

A typical lens for LED illumination is a convexly contoured outer surface. Such a lens is disadvantageous in that the light of the LED light source is refracted at a certain angle as it passes through the lens and is distributed within a range desired by the user, but light is concentrated at the center of the lens, that is, around the optical axis.

In high power LED lighting fixtures such as street lamps and security lamps, the ratio of the brightness representing the uniformity of the road surface luminance distribution, ie, the overrall unifromity (the minimum allowable value in the LED streetlight system in KS regulations) In Korea, M1 ~ M5) have road surface roughness. If they do not satisfy the standard, they can not be used as LED lighting fixtures. Therefore, it is difficult to fabricate a high power LED lamp as a general lens that concentrates light only around the optical axis.

In the present invention, in the present invention, the dot beam of the LED dot 22 arranged without using the reflector principle and the dot beam of the high- The total light intensity uniformity and the light flux maintenance required by the high output LED lamp are secured by using the light distribution lens 26 corresponding to each LED dot 22.

2 and 4, the LED dot 22 may be arranged on the rectangular high heat dissipation substrate 20 or the COB type LED dot 22 may be mounted on the nail- And the light distribution lens 26 formed integrally with the LED dot 22 and the cover plate 24 are brought close to each other and at the same time the LEDs 22 and the cover plate 24 are disposed on the outer circumference of the light distribution lens 26 The guide protrusion 28 is surrounded by the gaps, thereby limiting the radiation incident angles of the dot beams in the respective LED dots 22, thereby increasing the light efficiency.

The light efficiency is increased by decreasing the radiation incident angle of the beam and minimizing the area of the LED emission light source. In the present invention, the minimum light source area of a spot shape is constituted by LED dots 22 formed of one to four LED chips So that the light efficiency can be increased.

The dot beam emitted from the LED dot 22 arranged transversely to the high heat dissipating substrate 20 is incident on the corresponding light distribution lens 26 corresponding to each LED dot 22 with a limited incident angle, The light distribution lens 26 is used to realize a lens shape so as to secure a wide range suitable for a luminaire such as a street lamp or a security lamp.

4, the high heat dissipation substrate 20 having the LED light source unit of 30 to 80 W high power is fixed to the surface of the heat spreading metal plate 16 of the mounting space portion 14 of the heat sink case 10 for the luminaire And a plurality of light distribution lenses 26 integrally formed with the cover plate 24 are positioned close to the corresponding LED dots 22 immediately below.

A plurality of light distribution lenses 26 integrally formed on the cover plate 24 face the LED dots 22 as shown in an engagement sectional view of Fig. So that almost all of the dot beams emitted from the LED dots 22 are directly incident on the respective light distribution lenses 26. [ The arrangement of the dot-beam guides and the mutual proximity between the guide protrusions 28 serves to reduce the solid angle of the LED dot 22.

A plurality of light distribution lenses 26 integrally formed with the cover plate 24 are formed of one material such as polymethyl methacrylate (PMMA), glass, or polycarbonate. In order to provide an appropriate light distribution distribution for the luminaire, And has a parabolic concave inner surface 32 and an aspherical convex outer surface 34 together as shown.

Each of the dot beams emitted from the plurality of LED dots 22 arranged in a horizontal direction is incident on the guiding light distribution lens 26 on the guiding stone 28 and is first incident upon the first refraction at the parabolic concave inner surface 32 And is emitted through the secondary refraction at the aspherical convex outer surface 34. The light distribution distribution for the corresponding lamp is formed by the configuration of the plurality of LED dots 22 and the light distribution lens 26 in this form.

FIG. 6 is a perspective view of the recessed section of the light distribution lens 26 according to the present invention, FIG. 7 is a light distribution diagram of the YY line section of FIG. 6, and FIG. 8 is a light distribution diagram of the section of the XX line of FIG. 6 .

In the present invention, the parabolic concave inner surface (32) and the aspheric surface (32) are formed using the aspherical surface equation as shown in the following Equation (1) so that the first refraction and the second refraction can be ensured in the light distribution lens Shaped convex outer surface 34 is formed.

here,

H is the distance in the direction perpendicular to the optical axis,

Z is the distance from the tangential plane of the vertex of the lens aspheric surface to the height H of the aspherical surface,

R is curvature change at the lens aspherical surface apex,

k is a conic constant.

As shown in Fig. 7, the condition of the A plane which is the concave inner surface 32 in the longitudinal direction on the YY-ray cross section of the light distribution lens 26 is 17 <R <19, -0.90 <k <-1, 34) is 32 <R <36 and -0.1 <k <-0.3.

8, the condition of the C-plane which is the unidirectionally concave inner surface 32 at the XX line cross-section of the light distribution lens 26 can not be expressed by the equation, and the condition of the D-plane as the mono-convex outer surface 34 33 <R <35, -0.25 <k <-0.35.

9 is a characteristic chart of the orientation angle graph of each light distribution lens 26 according to the shape of the embodiment of the present invention.

Referring to FIG. 9, it is seen that the distribution of light distribution is uniform between the light emission angles of 70 degrees and -70 degrees by referring to the distribution charts of the light distribution using the light distribution lenses 26 of the present invention. As described above, the high-power LED lamp unit A according to the present invention diffuses evenly the light amount distribution of each light distribution lens 26 arranged at a specific position in a specific region, thereby reducing the total illuminance uniformity required for underground roads, tunnels, Can be met.

The cover plate 24 and the light distribution lens 26 according to the present invention can be made of PC (Poly Carbonate) or PMMA (Poly Methyl Methacrylate) material, and the glass material is good unless the manufacturing cost or weight is taken into account at all .

Among the materials of the cover plate 24 and the light distribution lens 26, the PMAA material has a refractive index of 1.48 to 1.50, and the glass has a refractive index of 1.46 to 1.6. The refractive index in the light distribution lens 26 is reflected when the degrees of the first refraction and the second refraction are determined.

Among the materials of the light distribution lens 26, PMMA (poly methyl methacrylate) material has higher light transmittance than harmful glass and is harmless to the human body. In terms of impact resistance and strength, it is several times stronger than glass, The degree of coating is significantly lower than that of glass. In addition, the PMMA material is very light in weight due to its resin characteristics and is convenient in processing, and is suitable for mass production of the light distribution lens 26.

And the PC material is a non-toxic transparent resin with good mechanical strength such as tensile strength, bending strength, impact strength, moldability, weatherability, and dimensional stability.

As described above, according to the present invention, uniform distribution of the light quantity suitable for underground traffic lights, security, streetlight, etc. is made using the dot beam radiated from the LED dot 22 and the corresponding light distribution lens 26, It is possible to secure the luminous flux required for the luminaires and to maintain the luminous flux continuously.

In the present invention, the outer surface of the cover plate 24 constructed as described above is provided with a fastening surface portion 30 for mounting a surveillance camera module in a central portion without the left and right LED light sources. This allows the surveillance camera module to be easily mounted on the bar type LED luminaire (A).

Also, the bar type LED lamp (A) for an outdoor unit of the present invention may be implemented as an incandescent lamp that is electrically connected to a dimmer that adjusts brightness and is adjustable in brightness.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of claims and equivalents thereof.

The present invention relates to a large light source such as a street light, a security light, a park, etc., a tunnel, etc., a factory, etc., a square halo light, It can be used in places that need it.

(10) -Bar type heat sink Injection case (12) - Heat sink fin
(14) - mounting space part (16) - thermal diffusion metal plate member
(18) - Gasket (20) - High heat dissipation substrate
(22) - LED dot (24) - Cover plate
(26) a light distribution lens (28)
(30) - Clamping surface
(32) - parabolic concave inner surface (34) - aspherical convex outer surface
(40) - Pivot mounting hole (44) - Square box part

Claims (10)

In a bar type LED lamp for outdoor use,
Heat-radiating resin material having a thermal conductivity of 4 to 12 W / mK and having a carbon content in consideration of electrical insulation, resin injection molding, and heat-radiating action according to the LED junction temperature, And a bar type heat sink resin injection case (10) formed on a bottom surface of the bar type heat sink resin injection case (10), wherein a thermal diffusion metal plate member (16) And the heat dissipating blade 16a for enhancing resin bonding and thermal diffusion transfer is integrally formed in the buried back portion of the thermal diffusion metal plate member 16,
A plurality of LED dots 22 are fixed on the surface of the thermal diffusion metal plate 16 of the bar type heat sink resin injection case 10 so as to be spaced laterally so that the total output of the LED dots 22 is 30 to 80W. The light source unit is provided so that the average temperature at the time of thermal stabilization in the LED light source unit is 85 캜 or less due to the heat radiation function through the thermally conductive resin bar type heat sink resin injection case 10 having the thermal diffusion metal plate member 16,
The cover plate 24 integrally formed with the light distribution lenses 26 positioned in close proximity to the respective LED dots 22 arranged in the horizontal direction is fastened to the bar type heat sink resin injection case 10, And a light distribution distribution for a luminaire is formed by the diffused light while the dot beam of the dot (22) is transmitted through each light distribution lens (26).
The light distribution system according to claim 1, wherein each light distribution lens (26) is formed of a parabolic concave inner surface (32) and an aspherical convex outer surface (34) so that a dot beam emitted from the LED dot (22) Shaped convex outer surface (34) after the first refraction at the parabolic concave inner surface (32) of the first convex surface (32) and the second refraction at the aspherical convex outer surface (34).
The bar type LED lamp according to claim 1 or 2, wherein the LED dots (22) are formed of one or more LED chips arranged at regular intervals on a rectangular high heat dissipation substrate (20).
The bar type LED lamp according to claim 1 or 2, wherein the LED dot (22) is composed of LED chips of a COB (Chips On Board) type.
The bar type LED lamp according to claim 1, wherein the material of the cover plate (24) and the light distribution lens (26) is one of polycarbonate (PC) and polymethyl methacrylate (PMMA).
2. The bar type LED lamp unit for outdoor use according to claim 1, wherein pivot mounting holes (40) for adjusting the lighting direction of the luminaire are formed on both left and right ends of the bar type heat sink resin injection case (10) .
The bar type LED lamp according to claim 1, wherein a coupling surface (30) for mounting a surveillance camera module is provided on an outer surface of the cover plate (24).
The method of claim 1, wherein the mounting space (14) of the bar-type heat sink resin injection case (10) is formed with a receiving groove (42) for accommodating an AC- Bar type LED lights for outdoor use.
The box type heat sink according to claim 8, wherein a rectangular box portion (44) is formed so as to protrude above the bar type heat sink resin injection case (10) by forming the receiving groove (42) 44a) is provided with an SMPS pack for DC-converting the AC power, so that the SMPS pack is enclosed by a box-shaped cover and can be fastened to the rectangular box part (44).
In a bar type LED lamp for outdoor use,
Heat-radiating resin material having a thermal conductivity of 4 to 12 W / mK and having a carbon content in consideration of electrical insulation, resin injection molding, and heat-radiating action according to the LED junction temperature, And a bar type heat sink resin injection case (10) formed on the mounting space part (14) of the bar type heat sink resin injection case (10), two heat spreading metal plate members (16) And the heat dissipating blade 16a for enhancing the resin bonding and the thermal diffusion transfer is integrally formed in the embossed back portion of each of the two thermal diffusion metal plate members 16,
A plurality of LED dots 22 are horizontally and spacedly arranged and fixed on the surfaces of the thermal diffusion metal plate 16 on the left and right sides of the bar type heat sink resin injection case 10 to form the first and second LED light sources, Type LED light source unit having a total output of 30 to 80 W. The first and second LED light source units are configured to have different outputs so that two different functions can be provided in one set,
The average temperature at the time of thermal stabilization in the LED light source part is set to be 85 DEG C or less due to heat radiating action through the thermally conductive resin bar type heat sink resin injection case 10 having the thermal diffusion metal plate member 16,
The cover plate 24 integrally formed with the light distribution lenses 26 positioned in close proximity to the respective LED dots 22 arranged in the horizontal direction is fastened to the bar type heat sink resin injection case 10, And a light distribution distribution for a luminaire is formed by the diffused light while the dot beam of the dot (22) is transmitted through each light distribution lens (26).

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