KR20180091544A - LED Street Light - Google Patents

Abstract

The present invention relates to an LED street light, including an upper cover for opening and closing the upper surface of a lower case in which an LED module is mounted in parallel with an electric component. The LED street light allows a vertical through hole and a side surface through hole to be formed on the edge of a first lower case and the side surface cover of the upper cover in a portion where the LED module is mounted to smoothly circulate cooling of heat generated from the LED module and to prevent deposition of dust due to the street light installed on the street.

Description

LED Street Light Device {LED Street Light}

The present invention relates to an LED streetlight device including an LED module and an upper cover for opening / closing an upper surface of a lower case to which electrical components are mounted side by side, and more particularly to a LED streetlight device that smoothly circulates heat from an LED module, Through holes and side through holes are formed in the rim of the first lower case in the area where the LED module is mounted and the side cover of the upper cover so that the sediment of the LED module is not accumulated on the inner LED module.

As a conventional LED streetlight device, for example, a device disclosed in a patent document (Korean Patent Registration No. 10-0941034) has been proposed.

As shown in FIGS. 11 to 14, the conventional LED street light fixture has a structure in which a light irradiation hole 1a is formed at the center of a bottom surface, and a plurality of long air flow holes 1a are formed on four sides, (1d) having a pair of hinge pieces (1c) integrally formed on a rear portion of the lower case 1); A fixing piece 2b having a translucent plate and a vibration-damping and waterproofing gasket insertion groove 2a and a plurality of fixing hole holes 2c is continuously formed on the periphery of the bottom face of the molded base, An LED mount 2 having a side surface and being detachably installed in the vicinity of the light irradiation hole 1a inside the lower case 1 through a number of fixing holes 3; A plurality of LED substrates 4 fixedly installed on the inner surface and the ceiling surface of the LED mounting hole 2 to generate light necessary for illumination when the power supply voltage is supplied from the power supply unit 10; The light emitting diode 4a is installed in a manner to block the bottom opening of the LED mounting hole 2 and the light irradiation hole 1a of the lower case 1 to transmit light emitted from the light emitting diodes 4a, And a transparent plate (5) for blocking inflow of flowing water; The LED mounting hole 2 is provided in the light-transmitting plate of the LED mounting hole 2 and the gasket insertion groove 2a of the vibration-damping and water-proofing gasket 2 so as to surround the periphery of the translucent plate 5, A waterproof and dustproof gasket 6 for maintaining airtightness between the LED mounting hole 2 and the translucent plate 5 and relieving impact force externally when the LED light source 1 is fixedly installed inside the case 1; A heat sink 7 fixed to the upper surface of the LED mounting hole 2 to heat the heat generated when the light emitting diodes 4a are driven and transferred through the LED mounting hole 2 through contact with air, ; A column coupling hole 8 which is detachably installed on the column coupling hole fixing piece 1d of the lower case 1 and fixes the upper end of the lamp collar 12 to be fixed; And a hinge engaging piece 9a formed on the rear side is formed so as to be openable and closable around a hinge piece (not shown) formed by bending the column engaging piece fixing piece 1d of the lower case An upper cover (9) fixed in a state of completely wrapping the upper opening of the lower case (1) through several fasteners (3) in a state of being closed; A power supply unit 10 for converting a DC voltage required for driving the light emitting diode 4a to supply the AC voltage to the LED substrates 4 when the AC voltage is supplied, ).

A cover support hole 11 is provided on the front surface of the upper surface of the column coupling member 8 so as to be rotatable in order to keep the cover 9 open at a predetermined angle when the cover 9 is opened. The upper end of the cover support 11 is hooked on the ceiling surface to further protrude a locking protrusion 9b for keeping the upper cover 9 itself in a heated state at an angle with respect to the lower case 1. [

On the other hand, several air flow holes 91 are radially formed in the front and rear portions of the upper cover 9, respectively, within a fan-shaped range.

At this time, the air guider 94 is further installed on the upper surface of the upper cover 9 so as to surround the upper portion of the air flow holes 91 formed in the front and rear portions in the state where the front and rear portions are knotted.

On the upper surface of the upper cover 9, air having a guide surface 95a having a plate-like ring shape and a funnel-shaped inclined surface 95b having a flow velocity enhancing-piece insertion / And the fluid flow direction guide piece 95 are formed integrally with the top surface of the air and fluid flow direction guide piece 95. The top surface of the air and fluid flow direction guide piece 95 is formed with several air flow holes 96a radially in the periphery, A hemispherical cap 96 having a structure in which several flow velocity enhancing pieces 96b having a semi-circular disk shape are formed so as to protrude in a vertical direction at predetermined intervals is detachably provided.

The conventional LED streetlight apparatus having such a structure has the following problems.

11 and 12, since the air flow holes 1b are formed on the four side surfaces of the lower case 1, the LED mounting holes 2 must be provided so that water or dust, etc., Parts are very heavy.

13 and 14, an air flow hole 91 and a flow velocity enhancing piece insertion / internal air discharge hole 93c are formed on the upper surface of the upper cover 9, However, since the flow holes are disposed directly above the heat dissipating plate 7, foreign substances or the like from the outside are directly accumulated on the heat dissipating plate 7, thereby significantly reducing the heat dissipating effect.

Further, when the lower case 1 is shaped like a box and water or the like enters the inside, there is a great possibility that the lower case 1 is not drained from the inside and remains small.

On the other hand, since the power supply unit 10 is provided on the upper cover 9, it is exposed to the moisture penetrated from the outside, and there is a great possibility that electrical short circuit or the like may occur.

Since the power supply unit 10 is installed on the upper cover 9, it is not easy to open and close the upper cover 9 because the power supply unit 10 is as heavy as the power supply unit 10. When the upper cover 9 is opened, And the power supply unit 10 can not be repaired at the same position at the same time.

The upper end of the cover receiving hole 11 is caught by the upper cover 9 because the upper cover 9 first touches the column connecting portion 8 and opens only at an acute angle of less than 90 degrees when the upper cover 9 is opened, Is required to be held at an acute angle, so that it is inconvenient to use a tool or the like for a small space for working.

In particular, since the hinge axis is disposed near the front of the column connecting portion 8, the LED street light mechanism can not be installed directly on the lamp post 9, and the upper cover 9 is provided for supporting the LED street light mechanism on the lamp post 9 There are many assembling processes in which the upper cover 9 is pivotably assembled after the column coupling portion 8 is fastened and supported to the lower case 1 in the separated state.

Korean Patent No. 10-0941034

It is an object of the present invention to provide an LED streetlight device in which a cooling circuit is arranged not only to cool the LED but also to prevent foreign matter (dust, etc.) from accumulating on the cooling pin of the LED.

In order to achieve the above object, an LED streetlight device according to claim 1 of the present invention comprises a first lower case having an LED module mounting hole, a second lower case having an electric component mounting case, a third lower case An upper cover for opening and closing an upper surface of the lower case and sealing the upper surface of the electrical component mounting case and a hinge for supporting the upper cover so as to open and close with respect to the lower case, In the front and left and right edges of the first lower case, upper and lower through holes are formed. The upper and lower through holes are formed in the right and left side surfaces of the upper case.

In the LED streetlight device according to claim 2 of the present invention, the first lower case is plate-shaped, the second lower case and the third lower case have mounting grooves convex downward than the first lower case, 2 The rim of the lower case and the third lower case are further formed with drain holes for draining the water flowing along the rim of the first lower case.

In the LED streetlight device according to Claim 3 of the present invention, the hinge portion is disposed outside the rear of the third lower case.

In the LED streetlight device according to the fourth aspect of the present invention, the hinge portion includes a fixed hinge shaft disposed laterally outwardly of a rear outer side of the third lower case, And a variable hinge slot coupled in a direction perpendicular to the fixed hinge axis.

In the LED streetlight device according to claim 5 of the present invention, the variable hinge slot has an elongated groove having a forward and backward hooking jaw which is engaged with the fixed hinge axis, .

The present invention has the following effects.

Since the through holes are formed in the left and right side surfaces of the upper cover in the area corresponding to the LED module mounting holes, foreign matter such as dust or the like from the outside is infiltrated from the outside while forming the cooling circulation path. So that the cooling efficiency is not deteriorated.

In addition, when the water flows through the upper and lower through-holes of the first lower case rim without draining, the water is drained to the drain holes of the second lower case and the third lower case, and water is not accumulated therein.

Further, since the hinge part is disposed outside the rear part of the third lower case, the upper cover can simultaneously open or close the LED module, the electric appliance, and the bar stand,

In particular, since the hinge portion is constituted by the variable (or floating) hinge long hole slidable with respect to the fixed hinge axis, the upper cover is hooked on the bar with an obtuse angle (about 105 degrees) It is not necessary to have a separate open-state maintaining component as in the prior art, which is opened at an acute angle, and a wide open space can be ensured by a complete opening.

1 and 2 are perspective views of an LED streetlight device according to a preferred embodiment of the present invention, as viewed from an upper surface and a lower surface.
3 is a side view of Fig.
4 is a perspective view of the upper cover in Fig.
4A is a cross-sectional view taken along the line II in Fig.
5 is a plan view of the lower case of Fig.
FIG. 6 is an exploded perspective view showing a main part of the lower case and the upper cover of FIG. 1; FIG.
Figs. 7 to 10 are perspective views showing the open / closed state of the LED streetlight device of Fig. 1; Fig.
11 is a sectional view of a conventional LED streetlight device.
FIG. 12 is a sectional view of the upper cover of FIG. 11 in an open state;
13 and 14 are a perspective view and an exploded perspective view in which an air flow hole and a flow velocity enhancing piece insertion and internal air discharge hole are formed in the upper cover of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 and 2 are perspective views of an LED streetlight device according to a preferred embodiment of the present invention, as viewed from an upper surface and a lower surface, FIG. 3 is a side view of FIG. 1, FIG. 4 is a perspective view of the upper cover, 4 is a cross-sectional view taken along line II of Fig. 4, Fig. 5 is a plan view of the lower case of Fig. 1, Fig. 6 is an exploded perspective view showing a main portion of the lower case and the upper cover of Fig. 10 is a perspective view showing the open and closed state of the LED streetlight device of FIG.

As shown in FIGS. 1 to 6, the LED streetlight device 100 according to the present embodiment includes an LED module 200, an electrical component 400, and a lower case 300 on which a bar 900 is mounted. An upper cover 500 for opening and closing the upper surface of the lower case 300 and a hinge unit 700 for pivotably supporting the upper cover 500 with respect to the lower case 300.

The lower case 300 and the upper cover 500 are preferably made of an aluminum material having excellent heat dissipation.

The lower case 300 is a horizontal member supported by the bar 900 and includes a first lower case 300a, a second lower case 300b and a third lower case 300c along the front to back, And is integrally formed on the rear side.

The first lower case 300a is in the form of a flat plate, and at the center thereof, an LED module mounting hole 301 in which a plurality of LED modules 200 are mounted is formed in a rectangular shape having a large opening.

Here, it is preferable that the waterproof LED module of the 10-1486292 filed by the present applicant and patented is applied to the LED module 200 of the present embodiment.

The upper and lower through holes 305 are formed in the front edge 302 and the left and right side edges 303 of the LED module mounting hole 301.

The upper and lower through holes 305 serve not only as an air circulation hole through which the outside or inside air circulates, but also serve as a drain hole.

The upper and lower through holes 305 are preferably horizontal long holes in the longitudinal direction.

The bottom surfaces of the front frame 302 and the left and right side frames 303 are lower than the edges of the first lower case 300a and the upper ends of the LED module mounting holes 301 so that the upper and lower through holes 305 The water that has not been drained by the first lower case 300b also serves as a passage for flowing into the second lower case 300b and the third lower case 300c.

The second lower case 300b and the third lower case 300c are box-shaped with mounting grooves convex downward below the lower surface of the first lower case 300a.

The second lower case 300b is formed with an electrical component mounting box 310 in which electrical components 400 are received.

The electrical component 400 may be composed of an earth leakage breaker, a ballast, a connector, or the like.

The electrical component 400 and the LED module 200 are connected by a cable and are connected to each other through a through hole formed in a side wall of the electrical component mounting box 310. A sealing bush is provided between the drawing hole and the cable, And so on.

The electrical component mounting case 310 has a shape in which four side walls protrude from the bottom of the second lower case 300b.

The upper end of the side wall of the electrical component mounting case 310 is located at a position higher than the upper surface of the first lower case 300a as well as the height of the cooling fin of the LED module 200 as shown in FIG.

A drain hole 312 is formed in the bottom of the second lower case 300b around the outside of the electrical component mounting case 310. [

The drain hole 312 is disposed at a position in parallel with the left and right edges 303.

The third lower case 300c is formed with a bar rest 330 as shown in FIGS.

The bar rest 330 is formed in a semicircle shape that supports the bottom surface of the bar 900 and includes a plurality of protruding strips 331.

As shown in FIG. 4, the bar 900 placed on the bar rest 330 is placed on the upper surface of the bar rest 900, and then the right and left sides are fastened and fixed.

Further, protrusions 333 are protruded from the protruding strips 331 at predetermined intervals along the peripheries thereof.

The protrusion 333 has a push-in effect to penetrate the bottom surface of the bar 900 to some extent when the barrel is fastened by the bracket 340 and functions as a rotation prevention stopper to prevent the bar 900 from being rotated.

A plurality of drain holes 314 are also formed on the bottom of the third lower case 300c.

The drain hole 314 is a hole for draining water that has not been drained in the drain hole 312 of the second lower case 300b.

Of course, the drain hole 312 and the drain hole 314 also serve as an air flow hole.

At the end of the bar rest 330, a bar rest supporter 335 further supporting the underside of the bar rest 900 is further extended.

Thus, in the lower case 300 of this embodiment, the LED module mounting area, the electrical component mounting area, and the bar mount area are integrally formed in parallel. When the upper cover 500 is opened, all three areas can be identified, Maintenance can be performed simultaneously or individually, and the work time of a worker who climbed to a high place can be minimized.

The upper cover 500 includes a top cover 510 and a side cover 530 that extends downward from the edge of the top cover 510.

A side through hole 540 is formed on the left and right sides of the side cover 530.

Particularly, the side through holes 540 are formed in a portion corresponding to the area of the first lower case 300a.

Therefore, the side through holes 540 serve as upper and lower through holes 305 and an air circulation flow hole.

The side through holes 540 are formed in the longitudinal direction of the side cover 530 along the longitudinal direction.

In addition, since the side through-hole 540 is disposed on the side surface of the upper cover 500, it is difficult for foreign substances or the like to penetrate into the interior due to external environmental factors such as a streetlight. Even if foreign substances are infiltrated, It is possible to prevent the cooling efficiency from being deteriorated due to the position that can not be stacked on the pin.

The upper and lower through holes 305 and the side through holes 540 are air circulation holes for receiving the heat radiated from the LED module 200 to the outside, When external air flows into the left or right side through hole 540, when the air is blown to the opposite side, the cooling fins of the LED module 200 are forcibly blown and cooled The efficiency can be further increased and the upper and lower through holes 305 can be also exhausted.

On the inner surface of the top cover 510, a packing part 320 is further provided to closely adhere to the edge of the electrical component mounting case 310.

6 to 10, the hinge unit 700 is disposed outside the rear portion of the third lower case 300c.

Due to the position of the hinge part 700, when the upper cover 500 is opened, both the LED module 200, the electrical component 400, and the bar bracket 340 can be checked for maintenance.

7 to 10, the hinge portion 700 is formed of a variable hinge portion.

That is, the hinge unit 700 includes a left and right fixed hinge shaft 710 disposed laterally outward of the third lower case 300c, and a second hinge shaft 710 extending and fixed in the front and rear direction from the rear outside of the upper cover 500 And a left and right variable hinge slot 730 coupled to the hinge shaft 710 at a right angle.

The fixed hinge shaft 710 is fixed between the left and right outer sides of the bar support post 335 and the support pieces 337 supported on the rear outer side of the third lower case 300c.

The variable hinge slot 730 has an elongate groove 731 having front and rear engaging jaws 732 and 733 which are engaged with the fixed hinge shaft 710 and a fixed hinge shaft 710 fastened to the front and rear jaws 732 and 733, And an escape prevention piece 735 for preventing the escape of the liquid.

The release preventing pieces 735 are in the form of a flat plate and fastened by bolts or the like.

A receiving groove 550 is formed in the upper cover 500 between the left and right variable hinge slots 730 to receive the upper surface of the bar 900.

Such a structure of the hinge portion 700 and the receiving groove 550 enables the maintenance of the upper cover 500 while maintaining the obtuse-angled open state.

The operation of the variable hinge unit 700 will be described with reference to FIGS. 7 to 10. FIG.

7, in a state in which the upper cover 500 is closed, the front stopping jaw 732 is positioned on the fixed hinge shaft 710.

In this state, when the upper cover 500 is opened, the front hanger 710 is opened with the front hanger 732 being engaged, as shown in FIG. 8, and then the upper cover 500 is lifted up So that the locking jaw 733 is caught by the fixed hinge shaft 710.

When the upper cover 500 is further opened to the rear side in the state as shown in FIG. 9, the rear edge of the receiving groove 550 is caught on the upper surface of the bar 900 as shown in FIG.

At this time, the left and right edges of the receiving groove 550 are further caught on the bar supporting post 335, so that the weight of the upper cover 500 opened at an obtuse angle is distributed to the bar supporting post 335 and the bar 900, Thereby enabling support.

In FIG. 7, the operation as shown in FIG. 10 is performed naturally from the moment when the upper cover 500 is opened until the operation is stopped.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be apparent to those skilled in the art.

100: LED street light fixture 200: LED module
300: Lower cases 300a to 300c: First to third lower cases
305: Upper and lower through hole 310: Electric equipment is mounted
312,314: Drain hole 330: Bar stand
500: upper cover 510: upper cover
530: side cover 540: side through hole
700: (variable) hinge part 710: fixed hinge shaft
730: variable (flow) hinge long hole 900: bar

Claims (5)

A lower case having a first lower case having an LED module mounting hole, a second lower case having an electric component mounting case, and a third lower case having a bar base,
An upper cover for opening and closing an upper surface of the lower case and sealing an upper surface of the electrical component mounting case,
And a hinge unit for supporting the upper cover to be openable and closable with respect to the lower case,
Upper and lower through holes are formed in the front and left and right sides of the first lower case,
And a side through hole is formed in left and right side surfaces of the upper cover corresponding to the first lower case.
The method according to claim 1,
The first lower case is plate-
The second lower case and the third lower case have receiving grooves convex downward from the first lower case,
And a drain hole for draining water flowing along the rim of the first lower case is further formed in the rim of the second lower case and the third lower case.
The method according to claim 1 or 2,
And the hinge portion is disposed outside the rear portion of the third lower case.
The method of claim 3,
The hinge unit includes a fixed hinge shaft disposed laterally outwardly of the third lower case and a variable hinge slot extending in the front and rear direction from the rear outer side of the upper cover to be coupled to the fixed hinge shaft in a direction perpendicular to the fixed hinge shaft. Included LED street light fixture.
The method of claim 4,
Wherein the variable hinge slot comprises an elongated groove having a front and rear engaging jaw which is engaged with the fixed hinge axis and an escape preventing piece which is engaged with the front and rear engaging jaws to prevent deviation from the fixed hinge axis.

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