KR101228612B1 - LED Street light unit with multiple spread lens - Google Patents

Abstract

An LED street light unit having a plurality of diffusion lenses is disclosed. LED street light unit having a plurality of diffusion lenses of the present invention, the LED module including a plurality of LEDs are arranged spaced apart from each other, and a plurality of LEDs are disposed; An LED protection unit coupled to one side of the LED module to protect the LED module; A heatsink module coupled to the other side of the LED module so as to discharge heat emitted from the LED module to the outside and prevent dirt from flowing into the LED module; And a head cover through which an outlet hole for outflowing light emitted from the LED module to the outside is formed and coupling the LED module and the heat sink module to each other, wherein the LED protector includes: a protective cover provided to cover one side of the PCB; And a plurality of diffusing lenses provided to protrude from one side of the protective cover at a position corresponding to a position where a plurality of LEDs are formed so that light emitted from the plurality of LEDs can be diffused to the outside. . According to the present invention, it is possible to provide an LED street light unit that can effectively improve the luminous efficiency of the LEDs while efficiently protecting each LED constituting the LED module.

Description

LED Street light unit with multiple spread lenses

The present invention relates to an LED street light unit having a plurality of diffusion lenses, and more particularly, a plurality of diffusion lenses that can improve the luminous efficiency of the LED while efficiently protecting each LED constituting the LED module One LED street light unit.

Street lamp is a lighting facility installed along the street for the safety and security of street traffic.

Most of the street lamps currently used are halogen lamps, fluorescent lamps, and mercury lamps. These halogen lamps, fluorescent lamps, and mercury lamps have a short lifespan, resulting in high maintenance costs. There is a problem that the maintenance cost is consumed a lot because of the power consumption.

In order to solve this problem, street lamps using LEDs with very low power consumption have been developed in recent years, but LEDs used as light sources generate high heat when they emit light, which shortens the lifetime of the LEDs. There is a problem that the roughness is greatly reduced.

In order to solve such a problem, an LED street light in which a heat radiation fin is formed on a street lamp body has been developed, but the street lamp body is not beautiful in appearance, and there is a problem in that manufacturing cost is high due to its structural complexity.

In addition, the conventional LED street light is composed only of a plastic cover that covers the surface of the PCB mounted LED, it is difficult to protect each LED from external impact, etc., and also efficiently diffuse the light emitted from each LED There is a problem that the lighting efficiency is lowered because it does not have a separate configuration that can be.

Disclosure of Invention An object of the present invention is to provide an LED street light unit having a plurality of diffusion lenses capable of improving the luminous efficiency of an LED while efficiently protecting each LED constituting the LED module.

The object, according to the present invention, the LED module including a plurality of LEDs are arranged spaced apart from each other, and the plurality of LEDs are disposed; An LED protection unit coupled to one side of the LED module to protect the LED module; A heat sink module coupled to the other side of the LED module so as to discharge heat emitted from the LED module to the outside and prevent the inflow of dirt into the LED module; And a head cover through which an outflow hole for outgoing light emitted from the LED module is discharged to the outside and coupling the LED module and the heat sink module to each other, wherein the LED protector covers one side of the PCB. A protective cover provided; And a plurality of diffusion lenses provided to protrude from one side of the protective cover at a position corresponding to a position at which the plurality of LEDs are formed so that light emitted from the plurality of LEDs may diffuse out. It is achieved by an LED street light unit having a plurality of diffusion lenses characterized.

The LED protection part may be provided with a plurality of LED insertion grooves recessed from the surface at a position opposite to the position where the diffusion lens is formed so that the plurality of LEDs can be inserted and fixed respectively.

The LED street light unit including the plurality of diffusion lenses may further include a sealing module interposed between the LED module and the LED protector to seal the LED module.

The LED protector is provided in a size larger than the LED module so as to completely cover the LED module, the sealing module comprises: a first sealing portion disposed along the outer periphery of the LED module; And a second sealing part spaced apart from the first sealing part by a predetermined distance in an outward direction.

The heat sink module may include a main frame to which the head cover is coupled; And a plurality of heat dissipation fins protruding from an upper surface of the main frame and provided in a streamline form from a front end to a rear end.

The plurality of heat dissipation fins may be a plurality of heat dissipation fins provided to protrude vertically from an upper surface of the main frame and gradually decrease in size toward both sides from a center of the main frame.

Each of the plurality of heat dissipation fins may have a through-hole penetrating the heat dissipation fins so that a space formed between the plurality of heat dissipation fins can communicate with each other.

The main frame may include a unit frame having both sides inclined downward; A first inclined surface extending obliquely upward from one end of the unit frame; A second inclined surface provided to be inclined upwardly from one end of the first inclined surface; And a third inclined surface provided to be inclined upwardly from one end of the second inclined surface, so that rainwater falling in rainy weather may be naturally discharged to both sides of the unit frame.

The main frame may include a unit frame having both sides inclined downward; And a first inclined surface extending obliquely upward from one end of the unit frame.

The main frame may include a second inclined surface extending upwardly inclined from one end of the first inclined surface; And a third inclined surface extending obliquely upward from one end of the second inclined surface.

The through hole may include a first through hole formed at a position adjacent to the first inclined surface; And a second through hole formed at a position adjacent to the third inclined surface.

The main frame may further include a protrusion protruding outwardly from one end of the third inclined surface so that rain water does not fall toward the connection portion side of the lamppost.

Both side surfaces of the unit frame and both side surfaces of the protruding portion may be formed as curved surfaces provided to be inclined downward.

The head cover may include a socket for connecting the upper end of the lamppost.

According to the present invention, it is possible to improve the luminous efficiency of the LEDs while protecting the respective LEDs efficiently, including an LED protector which efficiently diffuses the light emitted from the LEDs while protecting each LED constituting the LED module.

1 is a combined perspective view of an LED street light unit according to an embodiment of the present invention.
2 is a combined perspective view of the LED street light unit of FIG.
3 is an exploded perspective view of the LED street light unit of FIG.
4 is a side view of the LED protector of the LED street light unit of FIG.
5 is a side view of the heat sink module of the LED street light unit of FIG.
FIG. 6 is a cross-sectional view illustrating a state in which an LED module and an LED protection unit of the LED street light unit of FIG. 1 are combined.
7 is a state diagram used in the LED street light unit of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

1 is a combined perspective view of the LED street light unit according to an embodiment of the present invention, Figure 2 is a combined perspective view of the LED street light unit of Figure 1 viewed from the bottom, Figure 3 is an exploded perspective view of the LED street light unit of Figure 1, Figure 4 is a side view of the LED protection unit of the LED street light unit of Figure 1, Figure 5 is a side view of the heat sink module of the LED street light unit of Figure 1, Figure 6 is a combination of the LED module and the LED protection unit of the LED street light unit of Figure 1 Figure 7 is a cross-sectional view showing the state, Figure 7 is a state diagram used in the LED street light unit of FIG.

Referring to these drawings, the LED street light unit (100, hereinafter referred to as 'LED street light unit 100') having a plurality of diffusion lenses according to an embodiment of the present invention LED module for emitting light for external lighting 110, the LED protector 130 coupled to one side of the LED module 110, the heat sink module 150 for dissipating heat emitted from the LED module 110 to the outside, and the LED module 110. ) And a head cover 170 that couples the heatsink module 150 to each other.

LED module 110 is a configuration for emitting light for external lighting, a plurality of LEDs (111, LED, Light Emitting Diode) are arranged spaced apart from each other at a predetermined interval, and the plate surface on which the plurality of LEDs 111 are disposed It includes a PC (113, PCB, Printed Circuit Board) to provide.

The LEDs 111 are mounted on the PCs 113 so that a plurality of dogs are spaced apart from each other at regular intervals in the vertical direction. The LEDs 111 emit light for external lighting, and the PCs 113 supply the power to the LEDs 111 and at the same time the LEDs ( 111) is provided to control the degree of illumination. Since the other LED 111 and the PC 113 is substantially the same as the general LED and the PC B, detailed description thereof will be omitted.

The LED protector 130 is configured to be coupled to one side of the LED module 110 to protect the LED module 110.

The LED protector 130 includes a protective cover 131 provided to cover one side of the PC 113 and a position where the LED 111 is formed so that light emitted from the LED 111 can be diffused to the outside. It includes a diffusion lens 133 protruding from one side of the protective cover 131 at a position corresponding to the.

That is, as shown in Figure 4, the LED protection unit 130 of the present embodiment is provided in a form in which a portion of the protective cover 131 having a plate shape is recessed, the other portion protrudes, the LED 111 side On one side of the protective cover 131 facing the LED is formed with an LED insertion groove 131a for inserting each of the LEDs 111, the other side of the protective cover 131 opposite to the plurality of diffusion protruding from the surface The lens 133 is provided.

As such, configuring the LED protector 130 effectively protects each of the LEDs 111 from an external impact and at the same time allows the light emitted from the LEDs 111 to be irradiated in a wide range rather than directly below. For sake.

The LED protection unit 130 according to the present embodiment does not protect the LEDs 111 through one plastic cover covering the entire plurality of LEDs as in the related art, but each of the plurality of LEDs 111 includes an LED insertion groove 131a. By inserting in) it is possible to lower the possibility that the LED 111 can be damaged by an external impact.

In addition, the LED protection unit 130 is configured to include a plurality of diffusion lenses 133 corresponding to each LED 111, so that the irradiation angle of the light emitted from the LED 111 can be widened.

On the other hand, the heat sink module 150 is configured to prevent heat from being discharged from the LED module 110 to the outside and at the same time the rain water or dust, such as dust to the LED module 110.

As illustrated in FIGS. 1 and 5, the heat sink module 150 includes a main frame 151 and a plurality of heat dissipation fins 157 protruding from an upper surface of the main frame 151.

The main frame 151 has a configuration in which the head cover 170, which will be described later, is coupled to each other, and a unit frame 152 having both sides formed to be inclined downward, and a first inclined surface 153 extending upwardly inclined from one end of the unit frame 152. ), A second inclined surface 154 provided to be inclined upwardly from one end of the first inclined surface 153, a third inclined surface 155 provided to be inclined upwardly from one end of the second inclined surface 154, and a third inclined surface. And a protrusion 156 that protrudes outward from one end of 155.

The unit frame 152 forms the overall frame of the heat sink module 150 and provides a plate surface for forming the first inclined surface 153, the second inclined surface 154, the third inclined surface 155, and the protrusion 156. It is a constitution.

The outer circumferential surface of the unit frame 152 is provided to form a streamline shape as viewed from the upper side, and to form a curved surface in which both sides are inclined downward.

As such, forming the outer circumferential surface of the unit frame 152 provides a structure that can withstand strong winds by allowing the LED street light unit 100 to be minimally affected by wind, and at the same time, so that rainwater can be easily discharged to the outside. To do this.

That is, according to the shape of the unit frame 152 formed in a streamlined shape (LED), the LED street light unit 100 of the present embodiment is minimally affected by wind, and rain water falling in rainy weather along both sides of the unit frame 152. Since it can be naturally discharged to the ground it is possible to prevent the phenomenon of rain water collects on the heatsink module 150.

On the other hand, the first inclined surface 153 is configured to extend upwardly inclined from one end of the unit frame 152, the second inclined surface 154 is configured to be inclined upward from one end of the first inclined surface 153, The third inclined surface 155 is configured to be inclined upward from one end of the second inclined surface 154.

The reason for having three inclined surfaces 153, 154, and 155 connected to the unit frame 152 is to allow rainwater falling in rainy weather to be naturally discharged to the outside without accumulating on the heatsink module 150.

That is, in case of rain, rain water falling at a position adjacent to the first inclined surface 153 flows through the unit frame 152 or the first inclined surface 153, and then passes through the first through hole 157a formed in the heat dissipation fin 157, and thus, the unit frame ( 152 is naturally discharged to both sides.

Similarly, the rain water falling at the position adjacent to the second inclined surface 154 or the third inclined surface 155 in rainy weather flows through the second inclined surface 154 or the third inclined surface 155, and then passes through the second inclined surface 155. Naturally discharged to both sides of the unit frame 152 via the ball (157b).

However, as shown in FIG. 6, when the LED street light unit 100 of the present embodiment is formed to be inclined upward with respect to the lamppost P, the second inclined surface 154 may be omitted, and the aforementioned first inclined surface ( 153, the second inclined surface 154, and the third inclined surface 155 may be easily used to remove various foreign substances introduced into the heat sink module 150 as well as to naturally discharge rainwater.

The protrusion 156 is configured to protrude outward from one end of the third inclined surface 155. The protrusion 156 is provided to protrude outward from one end of the third inclined surface 155 so that rain water does not fall toward the socket portion 171 connected to the lamppost P.

In addition, both sides of the protrusion 156, as shown in Figure 1, is formed to form a downwardly inclined curved surface so that rain water falling on the protrusion 156 can be naturally discharged to the ground.

The heat dissipation fin 157 is configured to be discharged to the outside from the LED module 110 to the outside and at the same time a number is provided to prevent the dirt from entering the LED module 110 side.

As shown in FIGS. 1, 3, and 5, the heat dissipation fins 157 protrude vertically from the upper surface of the main frame 151, and the size of the heat dissipation fins 157 toward both sides from the center of the main frame 151. Is provided to gradually decrease. Along with this, the heat dissipation fin 157 is provided so that both ends thereof are narrow and the central portion has a large streamlined shape.

The shape of the heat dissipation fin 157 as described above is to provide a structure that can withstand strong winds by allowing the heat sink module 150 to be minimally affected by wind.

A first through hole 157a is formed in one end of the heat radiation fin 157 adjacent to the first inclined surface 153, and a second through hole 157b is formed in the other end of the heat radiation fin 157 adjacent to the third inclined surface 155. This is formed through. Since the roles of the first through hole 157a and the second through hole 157b are as described above, overlapping descriptions thereof will be omitted.

The head cover 170 is configured to couple the LED module 110 and the heatsink module 150 to each other.

As shown in FIGS. 1 and 3, the PC cover 113 in which the LEDs 111 are disposed on the outlet hole 170a formed through the head cover 170 is positioned and fixed thereto, and then the head cover 170 is fixed. When screwed to the heatsink module 150, the entire LED street light unit 100 is completed.

In addition, as shown in Figure 2, one end of the head cover 170 is provided with the above-described socket portion 171, the upper end of the lamppost (P) is inserted and then screwed to the LED street light unit 100 to the street light Make it easy to fix to the column (P).

Meanwhile, the LED street light unit 100 of the present embodiment further includes a sealing module 190 interposed between the LED module 110 and the LED protector 130.

The sealing module 190 is interposed between the LED module 110 and the LED protector 130 to seal the LED module 110. The sealing module 190 is disposed along the outer circumference of the LED module 110. 191 and a second sealing part 192 spaced apart from the first sealing part 191 by a predetermined distance in an outward direction.

That is, the first sealing part 191 and the second sealing part 192 are provided to have a size slightly smaller than the LED module 110 is interposed between the LED module 110 and the LED protector 130.

According to this configuration, when the LED module 110 and the LED protector 130 are coupled, the sealing module 190 seals the LED module 110 in a double manner so that moisture or dust flows into the LED module 110. It can be blocked efficiently.

The LED street light unit 100 of the present exemplary embodiment includes an LED protection unit 130 that efficiently diffuses the light emitted from the LEDs 111 while protecting the LEDs constituting the LED module 110. While effectively protecting the LED 111 of the LED 111 it is possible to improve the luminous efficiency.

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 embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

100: LED street light unit 110: LED module
130: LED protector 150: heatsink module
170: head cover 190: sealing module

Claims (13)

An LED module including a plurality of LEDs disposed to be spaced apart from each other by a predetermined interval, and a PC on which the plurality of LEDs are disposed;
An LED protection unit coupled to one side of the LED module to protect the LED module;
A heat sink module coupled to the other side of the LED module so as to discharge heat emitted from the LED module to the outside and prevent the inflow of dirt into the LED module; And
An outlet hole through which the light emitted from the LED module is discharged to the outside is formed through and includes a head cover for coupling the LED module and the heat sink module,
The LED protector,
A protective cover provided to cover one side of the PCB; And
It includes a plurality of diffusion lenses provided to protrude from one side of the protective cover at a position corresponding to a position where the plurality of LEDs are formed so that the light emitted from the plurality of LEDs can be diffused to the outside,
The heat sink module,
A main frame coupled to the head cover, the main frame including a unit frame having both sides inclined downward, and a first inclined surface extending obliquely upward from one end of the unit frame; And
An LED street light unit having a plurality of diffusion lenses, characterized in that it comprises a plurality of heat dissipation fins protruding from the upper surface of the main frame but provided in a streamlined form from the front end to the rear end. The method of claim 1,
In the LED protector,
And a plurality of LED insertion grooves recessed from a surface at a position opposite to the position where the diffusion lens is formed so that the plurality of LEDs can be inserted and fixed, respectively. The method of claim 1,
The LED street light unit having a plurality of diffusion lenses, characterized in that it further comprises a sealing module interposed between the LED module and the LED protector to seal the LED module. The method of claim 3,
The LED protector is provided in a size larger than the LED module to completely cover the LED module,
The sealing module,
A first sealing part disposed along an outer circumference of the LED module; And
An LED street light unit having a plurality of diffusion lenses, characterized in that it comprises a second sealing portion spaced apart from the first sealing portion in a direction outward. delete The method of claim 1,
The plurality of heat radiation fins,
An LED street light unit having a plurality of diffusion lenses, characterized in that the plurality of heat dissipation fins protruding from the upper surface of the main frame vertically and gradually reduced in size from the center of the main frame toward both sides. The method according to claim 6,
Each of the plurality of heat sink fins,
LED street light unit having a plurality of diffusion lenses, characterized in that the through-hole penetrating the heat radiation fin is formed so that the space formed between the plurality of heat radiation fin can communicate with each other. delete The method of claim 7, wherein
The main frame,
A second inclined surface extending obliquely upward from one end of the first inclined surface; And
And a third inclined surface extending upwardly inclined from one end of the second inclined surface. 10. The method of claim 9,
The through hole,
A first through hole formed at a position adjacent to the first inclined surface; And
And a second through hole formed at a position adjacent to the third inclined surface. 10. The method of claim 9,
The main frame,
LED street light unit having a plurality of diffusion lenses, characterized in that further comprising a protrusion projecting outwardly from one end of the third inclined surface so that rain water does not fall toward the connection portion side of the lamppost. The method of claim 11,
Both side surfaces of the unit frame and both side surfaces of the protruding portion, each of the LED street light unit having a plurality of diffusion lenses, characterized in that formed in a curved inclined downward. The method of claim 1,
The head cover,
LED street light unit having a plurality of diffusion lenses, characterized in that it comprises a socket for connecting the upper end of the lamppost.

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