KR101033874B1 - Led road lighting with improved heat dissipation - Google Patents

Abstract

PURPOSE: An LED streetlight device is provided to efficiently discharge heat from an LED module by separating a front body with an LED module from a wiring box to be exposed to outer air. CONSTITUTION: A front body(20) includes an LED module installing surface(21) and a plurality of heat radiation fins(22). The front body is detachably fixed to a front sidewall(31) with a coupling screw(32). A wiring box is surrounded with sidewalls to have a sealed structure. A support arm(60) is detachably combined with a streetlight pole and supports the wiring box. A support(36) controls the installation angle of the front body connected to the wiring box in a horizontal direction to change the installation angle of the wiring box. A fixing clamp(37) fixes the support arm to the wiring box. The bottom of the wiring box is comprised of a lower cover(40). The front sidewall of the wiring box includes a combination groove and one or more wiring holes. The rear sidewall of the wiring box includes a support arm insertion hole(35) into which the leading tip of the support arm is inserted.

Description

LED Street Light Fixture Improved Heat Dissipation Performance {LED ROAD LIGHTING WITH IMPROVED HEAT DISSIPATION}

The present invention relates to an LED street light fixture, and more particularly, to a structure of the LED street light fixture to improve the heat dissipation performance used as street lights, gardens, etc. installed at the edge of the road.

Currently, the use of LED lighting equipment is gradually increasing. In particular, the use of LEDs is gradually expanding even in the case of street lamps requiring high power. In general, the lighting of the LED street light should be controlled to be irradiated to a certain range along the length of the road without irradiating houses or crops located at the edge of the road. To this end, a reflector for controlling the irradiation direction is installed around the LED module. Due to the installation structure of the reflecting plate, the conventional street light becomes large and heavy, and thus, a support mechanism having a structure capable of withstanding a large load is required to fix a heavy weight lamp to the column.

In addition, the conventional LED streetlight mechanism has a structure in which various kinds of components, such as an LED module and a heat dissipation mechanism for dissipating heat generated from these LED modules, and wiring of the LED module are installed at the same time in one casing. However, in such a structure, it is necessary to seal the casing firmly so that external moisture or moisture does not enter the casing. Thus, the excellent sealing property of the casing adversely affects the heat dissipation of the LED light source inside the casing. Therefore, there is a disadvantage that the casing must have a separate complicated heat dissipation mechanism.

In addition, since the LED module is fixedly installed at a predetermined position inside the casing, and a reflecting plate for defining the irradiation direction is fixedly installed around the LED module, when the casing is incorrectly fixed to the street lamp, the lighting cannot be performed in a desired direction. In this case, it is difficult to change the installation angle.

In addition, the LED lighting apparatus provides a variety of LED lighting mechanism made by increasing or decreasing the number of installation of the LED module of a plurality of LEDs in accordance with various irradiation range or road light distribution. However, in a structure in which a plurality of LED modules are installed in one casing, the casing must be separately provided for each lighting fixture having a different number of LED modules. Therefore, there is a limit to producing various kinds of lighting fixtures of various sizes and outputs. There is.

Accordingly, the present invention is designed to solve the drawbacks of the conventional LED street light, the object of the present invention is to provide a LED street light fixture that is relatively reduced in size compared to the LED street light fixture having a reflector structure by removing the reflector structure around the LED module. do.

In addition, the present invention is to separate the space where the LED module is installed and the space of the wiring portion for providing power to the LED module by a separate casing to strengthen the sealing of the wiring portion, while effectively dissipating heat generated from the LED module to heat dissipation effect Another object is to provide an LED street light fixture that can increase the.

Still another object of the present invention is to provide an LED street light mechanism that is easy to adjust the installation angle and the operation of replacing the module of the LED street light.

The present invention for achieving the above object, the front body having a plurality of heat dissipation fins are exposed to the outside extending integrally upward from the LED module installation surface and the LED module installation surface is installed; A wiring box partitioned into a separate body from the front body and accommodating an electrical component and an electrical wiring for supplying power to the LED module of the LED module installation surface in an inner space and having a structure sealed to the outside; A support arm having one end detachably coupled to the street lamp and the other end inserted into the junction box to support the junction box to the street lamp; And a support for adjusting the installation angle of the front body connected to the junction box in the horizontal direction by adjusting the installation angle of the junction box with respect to the end of the support arm. And a fixing clamp for fixing the support arm inserted into the junction box.

The junction box is surrounded by a side wall to prevent water from flowing into the inner space and the bottom cover is composed of a lower cover coupled to open and close to access the inner space, the front side wall of the junction box, the left side of the rear tip of the front body A coupling groove provided at the left / right edge to engage the right / right edge portion, and at least one wiring hole for passing the wiring of the inner space toward the front body, and the rear sidewall is formed so that the front end of the support arm can be fitted. An arm insertion hole is provided.

The junction box has a pair of pin-hanging grooves each protruding in the width direction of the junction box on the outer surface of the pair of brackets provided at regular intervals in the width direction on the rear outer surface, the lower cover is the rear outer On the outer side of the pair of brackets provided at regular intervals in the width direction on the side, each pair of hinge pins are extended to protrude in the width direction of the junction box and coupled to the corresponding pin hook groove.

The rear end of the front body is provided with a hook member for walking the front end of the lower cover coupled to the bottom of the junction box.

The support is made up of a plurality of support jaw provided on the upper inner wall of the junction box to lower the step height toward the rear side wall.

The support arm is secured to the wiring box by a fixing member comprising an upper support part mounted on an upper end of the outer peripheral surface of the support arm on the inner wall of the junction box and a fixing member fastened to the upper support part by a fastening bolt to fix the support arm.

A drain hole is provided between the rear end face of the front body and the front side wall of the junction box and in front of the front end face of the front body so that water flowing through the gap between the heat dissipation fins is drained.

The LED module has a circuit board whose rear surface is in close contact with the LED module installation surface of the front body, a plurality of LED packages are arranged and mounted at regular intervals on the front surface of the circuit board, and installed on the outside of each LED package A light distribution lens for controlling an irradiation direction of light emitted from an LED element of the LED package, and the circuit to expose the light distribution lens and the LED package to the outside through a hole and to fix the light distribution lens and the LED package at a predetermined position on a circuit board. It is configured to include a cover plate coupled to the substrate.

The LED streetlight mechanism of the present invention configured as described above is capable of effectively dissipating heat generated by the LED module by separating the front body in which the LED module is installed from the wiring box and contacting the outside air, and also providing a reliable sealing structure for the wiring box. Can be provided to protect the electrical components inside the junction box from external rainwater intrusion.

In addition, according to the LED streetlight mechanism of the present invention, since the front body with the LED module is attached to the junction box, by simply changing the position where the junction box is installed on the support arm can be easily changed and adjusted the irradiation direction and irradiation area of the LED There is this.

In particular, the LED streetlight mechanism of the present invention has the advantage of simplifying the structure for installing and fixing the LED module to the street lamp column, while simplifying the replacement / repair of electrical components inside the LED module or junction box in the state assembled to the street lamp column. .

1 is a perspective view of an installation state of the street lamp mechanism of the present invention,
2 is a longitudinal cross-sectional view of the street lamp mechanism of the present invention,
3 is a plan view of the lower cover of the streetlight mechanism of the present invention with the bottom cover taken along the line 'A-A' of FIG.
Figure 4 is a partial perspective view showing the inside by cutting a portion of the upper cover of the junction box of the street lamp mechanism of the present invention,
FIG. 5 is an enlarged view of the 'B' part of FIG. 2 and is a sectional view showing the LED package structure of the LED module of the street lamp device of the present invention;
Figure 6 is a cross-sectional view of the installation mechanism of the holder mechanism for fixing the lower cover in the assembled state in the junction box of the street lamp mechanism of the present invention.

Hereinafter, a preferred embodiment of the LED streetlight mechanism according to the present invention will be described.

1 is a view schematically showing a state in which the LED streetlight mechanism of the present invention is installed in the street lamp column installed at the edge of the road, reference numeral '100' refers to the street lamp mechanism of the present invention, reference numeral '1' denotes the street lamp Refer. And reference numeral '20' refers to the front body 20 coupled to the front of the junction box 30, '22' represents a heat radiation fin provided on the upper side of the front body (20). Reference numeral 40 denotes a lower cover coupled to the bottom of the junction box 30.

Hereinafter, the term "forward" refers to a direction in which the street lamp mechanism extends toward the lane from the street lamp column 1 in a state in which the street lamp mechanism 100 of the present invention is installed on the street lamp column 1 ('F' in FIG. 1). Direction, 'rear' refers to the 'R' direction of Fig. 1, 'left', 'right', 'upward', 'downward' respectively, when viewed from the road toward the side of the side, (LH direction), right side (RH direction), upward direction (U direction), and downward direction (D direction).

LED street light fixture 100 according to the present invention, as shown in Figure 2, the LED module installation surface 21 and a plurality of LED module 10 is installed in the upward direction from the LED module installation surface 21 A front body 20 having a plurality of heat dissipation fins 22 extending integrally and exposed to contact the outside air; It is made of a separate casing separate from the front body 20, the inner space accommodates various electrical components (not shown) and electrical wiring for supplying power to the LED module 10 of the LED module installation surface It includes; a junction box 30 having a sealed structure so that water does not intrude from the outside. And the assembly of the front body 20 and the junction box 30 is supported by a support arm 60 extending in the horizontal direction, one end is detachably coupled to the street lamp.

Sealed structure of junction box

LED street light fixture 100 of the present invention has a sealed structure for blocking rain water inflow into the junction box 30 during the rainfall as described below.

FIG. 2 is a cross-sectional view of the streetlight device 100 of the present invention supported by the support arm 60 in a longitudinal direction. Referring to FIG. 2, the LED streetlight device 100 according to the present invention is an LED module ( 10 is formed of the front body 20 and the junction box 30, the front body 20 and the junction box 30 composed of a body separated from each other, the front body 20 of the junction box 30 It is arrange | positioned outside and couple | bonded with the front F of the junction box 30. As shown in FIG.

As shown in FIGS. 2 to 4, the junction box 30 opens the bottom and detaches the opened bottom for work such as assembling or replacing the front side wall, wiring of the upper internal space, or electrical components. The lower cover 40 is to be covered.

The junction box 30 is a pair of pin-hanging grooves extending to protrude in the width direction of the junction box on the outer surface of the pair of hinge brackets 39a provided at regular intervals in the width direction on the rear side wall 32. A pair of brackets 41 corresponding to the hinge brackets 39a are provided on the rear outer surface of the lower cover 40 at regular intervals in the width direction, and the brackets 41 are provided. ) Is provided with a pair of hinge pins (42) mounted on and supported by the pin-hang groove (39b) The lower cover (40) is a hinge pin (42) is mounted on the pin-hook groove (39b) of the junction box (30) It is coupled to the opening and closing with respect to the wiring box 30 around the hinge pin 42. The fixed clip on the outer surface of the pin hook groove (39b) in the state in which the hinge pin 42 is coupled to the pin hook groove (39b) By inserting the hinge pin 42 is fixed so as not to be separated from the pin hook groove (39b).

The lower cover 40 coupled to the junction box 30 is fixed in the closed position by the hook member 44 provided on the front bottom surface of the junction box. When the hook member 44 shown in FIG. 4 is rotated in the direction of the arrow to switch to the unlocking position, the lower cover 40 is rotated about the hinge pin 42 to open.

LED Module structure and heat dissipation structure

2 and 3, the front body 20 forms an LED module mounting surface 21 on a bottom surface formed of a plane, and a plurality of LED modules 10 on the LED module mounting surface 21. This is arranged continuously.

As shown in detail in FIG. 5, the LED module 10 includes a substrate 11 fixed to contact the LED module installation surface 21 of the front body 20, and a plurality of substrates 11 are disposed on the substrate 11. LED packages 12 are mounted on the surface and connected to the printed wirings on the substrate 11. Each of the LED packages 12 is covered with a refractive lens 13 of a transparent material, and the intermediate plate 14 and the cover plate 15 are stacked and coupled thereon.

2 and 4, a plurality of heat dissipation fins 22 for dissipating heat transferred from the plurality of LED modules 10 in contact with the outside air extends upwardly of the LED module installation surface 21. In order to be integrally provided and arranged adjacent to the heat radiating fins adjacent to each other in the transverse direction. The front body 20 having the heat dissipation fins 22 is provided on the outside of the junction box 30 so that the heat dissipation fins 22 are directly in contact with rainwater during the rain and rain, and the heat discharged from the LED module 10 to the outside. As it emits, it exhibits excellent heat dissipation performance.

Rainwater passes through the gap between the heat dissipation fins 22 and cools the heat dissipation fins 22 at the same time, between the front end of the front body 20 and the tip cap 24, and the rear end of the front body 20. Since it is discharged to the outside through the drain holes 25a and 25b respectively provided between the front sidewalls 31 of the junction box 30, foreign matters such as dust deposited in the gap between the heat dissipation fins 22 may be removed.

The front body 20 is inserted into the coupling groove provided in the outer side of the front side wall 31 of the junction box 30 is supported by the junction box 30, penetrating the front side wall 31 of the junction box 30 The plurality of fastening screws 32 are coupled to fastening holes (not shown) provided in the heat dissipation fins 22 to be firmly fixed to the junction box 30. In addition, a wiring hole 33 is formed in the front sidewall 32 of the junction box 30 so as to pass the wiring W connected to the LED module 10 of the front body 20. The sealing member is fitted into the wiring hole 33 so that rain water does not flow through the wiring hole 33.

LED Installation structure of street lamp fixture and control of installation angle

A support arm insertion hole 35 is provided in the rear sidewall 34 of the junction box 30. The support arm 60 is inserted through the support arm insertion hole 35. The support arm 60 is inserted into the junction box 30 through the insertion hole 35 of the junction box 30, and the junction box 60 is supported by placing the support arm 36 protruding from the upper inner surface of the junction box 30 at the distal end thereof. Support 30.

As shown in FIG. 2, the support base 36 provided on the upper inner wall of the junction box 30 includes a plurality of support jaw portions in which the protruding height is gradually lowered from the front side to the rear side.

2 and 3, the support arm 60 is inserted into the inner space through the insertion hole 35 of the junction box 30 so that the front end supports one side of the support jaw of the support 36 The rear end fixes the junction box 30 by being fixed to the inner wall of the junction box 30 with the fixing clamp 37 inside the rear sidewall 34 of the junction box 30. If you want to change the irradiation direction of the LED module by changing the installation angle of the wiring box 30 installed on the support arm 60, loosen the fixing clamp 37 slightly and move the wiring box 30 back and forth. The front tip of 60 is adjusted to rest on the support jaw of different height.

A horizontal level gauge 50 is installed on the inner wall of the junction box 30 to indicate an installation state of the junction box 30. The horizontal level gauge 50 is mounted on the installation block 43 protruding from the bottom surface of the junction box 30 is coupled.

10: LED Module 11: Board
12: LED Package 13: Refractive Lens
14: middle plate 15: cover plate
20: front body 21: LED module mounting surface
22: heat sink fin 24: tip cap
25a, 25b: drain
30: junction box 31: front side wall
32: tightening screw 33: wiring hole
34: rear side wall 35: insertion hole
36: support 37: fixing clamp
38: high informational 39a: hinged bracket
39b: pin hanger groove W: wiring
40: lower cover 41: bracket
42: hinge pin 43: horizontal level gauge mounting block
44: hook member
50: level gauge 60: support arm

Claims (5)

delete The LED module mounting surface 21 is attached to the plurality of LED modules 10 facing the ground, and a plurality of heat dissipation fins 22 extending upwardly integrally from the LED module mounting surface 21 to contact the outside air. One front body 20; It is formed as a separate body separate from the front body 20 is fixed to the front body 20 to the front side wall 31 with a fastening screw 32, the inner space is surrounded by the side wall to enclose a closed structure A junction box 30; A support arm (60) having one end detachably coupled to the street lamp and the other end inserted therein through the rear sidewall (34) of the junction box (30) to support the junction box (30); And a support 36 for adjusting the installation angle of the front body connected to the junction box in the horizontal direction so as to vary the installation angle of the junction box 30 with respect to the support arm 60. And a fixing clamp 37 for fixing the support arm 60 inserted into the junction box to the junction box 30.
The bottom part of the junction box 30 is composed of a lower cover 40 coupled to the junction box 30 so as to be openable and close, and the front sidewall 31 of the junction box 30 has an outer surface of the front body 20. A coupling groove for fitting the rear tip and one or more wiring holes 33 for passing the wiring W of the inner space toward the front body 20, and the rear sidewall 34 of the junction box 30 is An LED street light fixture with improved heat dissipation performance, comprising: a support arm insertion hole (35) formed so that the tip of the support arm (60) can be fitted. The method of claim 2 ,
The junction box 30 is a pair of pin-hanging grooves extending to protrude in the width direction of each junction box to the pair of hinge brackets 39b provided at regular intervals in the width direction on the outer side of the rear side wall 34 ( 39b), the lower cover 40 is provided with a pair of hinge pins 42 mounted on the pin hook groove (39b) to the rear end to engage,
LED lamps with improved heat dissipation performance, characterized in that the bottom of the junction box 30 is provided with a hook member (44) for fixing the end of the lower cover 40 coupled to the bottom of the junction box (30). The method of claim 2,
Between the rear end face of the front body 20 and the front side wall 31 of the junction box 30 and the front end face of the front body 20 so that water introduced through the gap between the heat dissipation fins 22 is drained. An LED street light fixture with improved heat dissipation performance, characterized in that the front is provided with drainage holes (25a, 25b) is widened toward the bottom. The method of claim 2 ,
The installation block 43 is projected on the bottom surface of the junction box 30, the horizontal level gauge 50 is installed on the installation block 43, LED street light fixtures improved heat dissipation performance.

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