KR100968215B1 - LED lighting appatatus - Google Patents

Abstract

The present invention relates to an LED lighting device that is capable of rapidly cooling the inside of a large area of the housing by natural convection by maximizing the contact area between the circulated air and the housing while maximizing air inflow and discharge. Protrudes downwardly to form a substrate attaching surface to which a substrate to which one or more LED lamps are coupled is formed, and a recessed groove having an upper surface recessed to correspond to the substrate attaching surface is formed, and penetrates upward and downward through the substrate attaching surface. A housing in which one or more air circulation holes are formed; A lower cover formed of a transparent material and coupled to a lower surface of the housing to prevent inflow of moisture and foreign substances into the substrate attaching surface and having a through hole corresponding to the air circulation hole; It is configured to include.

Accordingly, the circulation amount of air for cooling the heat generated by the light emission of the LED lamp is maximized, and the circulated air is in direct contact with the rear surface of the housing, thereby improving the cooling efficiency.

LED lamp, cooling, natural convection

Description

LED lighting device {LED lighting appatatus}

The present invention relates to a lighting apparatus using an LED lamp, and more particularly, a plurality of LED lamps and substrates and inverters required for lighting the LED lamps are firmly supported, and the heat generated during the operation of the LED lamps is applied to natural convection. It relates to an LED lighting device to be smoothly cooled by.

In general, the lighting device converts electrical energy into light energy to identify objects even in the dark, and is manufactured in various forms according to the purpose. Incandescent lamps, fluorescent lamps, halogen lamps, etc. Lighting fixtures using various lamps such as mercury lamps have been used.

However, the conventional lighting device employing such a lamp generates a lot of heat when converting electrical energy into light energy, thereby resulting in a large energy loss and short life.

In order to solve such a problem, the use of LEDs (light emitting diodes), that is, light emitting diodes, which emit light with high power at a low power and a semi-permanent life, is gradually increasing.

LED not only has the advantages of fast response speed and low power consumption, but also is environmentally friendly and has high energy saving effect, and it is attracting attention as next-generation strategic product, and the lighting using LED is about 70 ~ 80 compared to conventional incandescent or fluorescent lamps. It is attracting attention as a lighting fixture due to its low power consumption of about% and semi-permanent life of more than 100,000 hours.

However, the conventional LED lighting has a problem that it is difficult to smoothly discharge or remove the heat generated from the inside, there is a problem that the LED itself is damaged by this heat to shorten the life of the LED.

In order to solve this problem, the Korean Patent No. 822032, filed on June 28, 2007, filed by the applicant of the present application and registered on April 7, 2008, shows a plug body 100 and a light socket 200 as shown in FIG. ), Lampshade 300, natural convection pipe 400, LED light unit 500 and the lower lens 600, but the natural light convection combined the LED light unit 500 on the outer peripheral surface of the convection 400 As the air introduced into the pipe 500 is moved by natural convection, the heat generated from the LED lamp unit 500 is discharged to the outside of the lamp shade.

However, in the conventional LED lighting device as described above, the LED lamp unit is coupled to the outer circumferential surface of the natural convection pipe, and the air passing through the natural convection pipe is discharged through the upper end of the plug body, and the natural convection air and the LED lighting device are In addition to the narrow contact area, there was a problem that the cooling efficiency is low as the air quickly passes through the natural convection pipe, when there are a number of LED lamps there was a problem that the smooth cooling is not achieved.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the object is to maximize the contact area between the air and the housing circulated while maximizing the air inlet and discharge of the inside of the housing of a large area It is to provide an LED lighting device that can be quickly cooled by natural convection.

It is also an object of the present invention to prevent the moisture introduced with the air from being in direct contact with the inner surface of the lower cover and the LED lamp.

In addition, an object of the present invention is to allow the light of the LED lamp is more smoothly emitted.

It is also an object of the present invention for the convex lens to diffuse the light of the LED lamp into a brighter and larger area.

In addition, an object of the present invention is to prevent the introduction of various foreign matter, including rain water through the upper surface of the housing.

It is also an object of the present invention to further increase the heat exchange area of the housing and air.

In addition, an object of the present invention is to maximize the irradiation area of the light emitted from a plurality of LED lamps.

In addition, an object of the present invention is to make it easy to adjust the angle of the housing while being firmly fixed at a specific angle.

In order to achieve the above object, the present invention provides a substrate attaching surface to which the bottom portion of the center protrudes inclined downwardly to which a substrate to which one or more LED lamps are coupled is formed, and the recessed recess in which the upper surface is recessed to correspond to the substrate attaching surface. It is formed, the housing formed with one or more air circulation holes penetrated up and down on the substrate attachment surface; A lower cover formed of a transparent material and coupled to a lower surface of the housing to prevent inflow of moisture and foreign substances into the substrate attaching surface and having a through hole corresponding to the air circulation hole; It is configured to include.

In addition, a moisture barrier tube protruding downward along the outer circumference of the air circulation hole and the end is in contact with the through hole is formed.

In addition, the auxiliary cover is inserted and fixed in the space between the lower cover and the housing, a convex lens is formed at a position corresponding to the LED lamp, and the secondary cover is formed with a second through hole corresponding to the air circulation hole and the through hole It features.

In addition, the convex lens is characterized in that the radius of curvature of the inner surface corresponding to the LED lamp is formed larger than the radius of curvature of the outer surface toward the outer side of the housing.

In addition, it is coupled to the upper surface of the housing, characterized in that the upper cover is further provided with a plurality of air discharge holes formed in a position deviated from the air circulation hole.

In addition, a plurality of heat exchange fins is formed on the inner surface of the recessed groove.

In addition, the substrate mounting surface is characterized in that a plurality of the inclined angles are formed on the lower surface of the housing.

In addition, the support is fixed to one side of the housing is coupled to the outer wall of the building or the pillar of the street lamp, the support is a first support fixed to the outer wall of the building or the pillar of the street lamp, one end is hinged to the first support A second support coupled to the other end and fixed to the housing and a tooth portion protruding in a radial direction to correspond to each other on a surface where the first support and the second support are in contact with each other are formed.

Accordingly, the present invention provides an LED lighting device that can maximize the contact area between the circulated air and the housing while maximizing the inflow and discharge of air to quickly cool the inside of the large area of the housing by natural convection, In addition to maximizing the amount of circulation of air for cooling the heat generated by the light emission of the LED lamp, the circulated air is in direct contact with the rear surface of the housing has the effect of improving the cooling efficiency.

In addition, the present invention forms a moisture barrier tube to prevent the moisture introduced with the air to be in direct contact with the inner surface of the lower cover and the LED lamp, it is possible to prevent the corrosion of the LED lamp and the substrate by the moisture. Rather, it has an effect of preventing moisture from rising inside the lower cover.

In addition, the present invention has a secondary cover formed with a plurality of convex lenses so that the light of the LED lamp is more smoothly emitted, the light of the LED lamp is more strongly emitted has the effect of maximizing the illuminance of the LED lighting device.

In addition, the present invention is to make the radius of curvature of the inner surface of the convex lens larger than the radius of curvature of the outer surface to diffuse the light of the LED lamp to a brighter and wider area, thereby improving the lighting effect of the LED lamp To have.

In addition, the present invention is provided with an upper cover to prevent the introduction of various foreign matters including rain water through the upper surface of the housing, it has the effect of preventing short circuit and corrosion by the inflow of rain water.

In addition, the present invention by forming a heat exchange fin on the inner surface of the recessed groove to further increase the heat exchange area of the housing and air, it has the effect that the cooling of the LED lamp more quickly and smoothly.

In addition, the present invention forms a plurality of substrate attachment surfaces having different inclination angles to maximize the irradiation area of the light emitted from the plurality of LED lamps, thereby increasing the illumination range of the LED lighting apparatus.

In addition, the present invention is to make it easy to adjust the angle of the housing while being firmly fixed at a specific angle, the effect that the operation of adjusting the light emitting position so that the light is concentrated at the optimal lighting position when using the LED lighting device as a street light Will have

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

Figure 1 shows a first embodiment of the present invention, Figure 1a is an exploded perspective view according to a first embodiment of the present invention, Figure 1b is a perspective view showing a coupling state of Figure 1a, Figure 1c is a longitudinal cross-sectional view of Figure 1b As shown, the present invention relates to an LED lighting device used for various lightings including a street lamp using the LED lamp 2, the housing (1) to which the substrate (1) to which the LED lamp 2 is attached is fixed ( 10) and a lower cover 20 coupled to the lower surface of the housing 10 and formed of a transparent material to allow light emitted from the LED lamp 2 to be irradiated to the outside of the housing 10. Air flow holes 13 and through holes 21 formed through and corresponding to each other in the lower cover 20 are formed so that air introduced from the outside of the lower cover 20 is lower cover 20 and the housing 10. Is generated in the LED lamp (2) by natural convection while passing through the inside of the To one so as to quickly cool the heat.

The housing 10 is to form a body of the LED lighting device, it is preferable to be formed of a metal material having a high thermal conductivity and strong rigidity, the lower surface formed with a substrate attachment surface 11 protruding obliquely downward to attach the substrate The substrate 1 to which the plurality of LED lamps 2 are coupled to the surface 11 is fixed.

In this case, the substrate attaching surface 11 is formed such that the LED lamp 2 is inclined to face the outer side of the housing 10 so that the light spreads to a large area when the LED lamp 2 is turned on. It is preferable to increase the number, and it is also possible to form a plurality of substrate attachment surface 11 having different inclination angles so that the plurality of LED lamps 2 emit light at different angles.

In addition, a plurality of air circulation holes 13 are formed on the substrate attaching surface 11 to penetrate the housing 10 in the up and down directions, so that air introduced from the lower side of the housing 10 is air circulation holes. It is preferable to move to the upper surface of the housing 10 while passing through the 13 to allow the housing 10 heated by the LED lamp 2 to be smoothly cooled, and the substrate attaching surface to the upper surface of the housing 10. The recessed recesses 12 are formed to correspond with the recesses 11 so that the air passing through the air circulation holes 13 passes through the recessed recesses 12 so that the heat generated by the LED lamps 2 is cooled smoothly. It is preferable.

The lower cover 20 has moisture or foreign matter on the LED lamp 2 and the substrate 1 coupled to the substrate attaching surface 11 while the inner surface of the lower cover 20 is fixed to the substrate attaching surface 11 of the housing 10. The light emitted from the LED lamp 2 is smoothly emitted while preventing the lamp from coming into contact with the lamp, and formed of a synthetic resin material or glass of a transparent material, and having a through hole at a position corresponding to the air circulation hole 13 described above. 21 is formed, and by forming a flange 22 to tightly secure the lower cover 20 to the housing 10 along the outer circumference, a more firm coupling is achieved.

Accordingly, heat generated when the LED lamp 2 is turned on is conducted to the housing 10 while the housing 10 is heated, and at this time, air introduced into the through hole 21 of the lower cover 20 receives air circulation holes. By lowering the temperature of the housing 10 while moving to the upper recessed groove 12 of the housing 10 through 13, smooth cooling of the housing 10 is made.

In addition, the air circulation hole 13 and the through-hole 21 is formed by adding or subtracting according to the size of the housing 10 and the number of the LED lamps 2 mounted on the housing 10, thereby achieving a more rapid and smooth cooling It is desirable to lose.

In addition, the outer side of the air circulation hole 13 protrudes below the substrate attachment surface 11 and forms a moisture barrier tube 14 whose end abuts on the inner side of the through hole 21. Air is introduced into the upper surface recessed groove 12 of the housing 10 without flowing into the space between the substrate attachment surface 11 and the lower cover 20, so that moisture or foreign matter contained in the air It is preferable to prevent the fall of light quantity or short circuit resulting from contacting (1) and the LED lamp 2.

In addition, a plurality of heat exchange fins 121 protruding toward the upper side are formed inside the recessed groove 12 to pass through the air circulation hole 13 to the recessed groove 12 of the housing 10. It is desirable to allow for faster and smoother cooling by maximizing the contact area.

At this time, the heat exchange fin 121 is formed radially around the air circulation hole 13, so that the air introduced through the air circulation hole 13 more smoothly circulates inside the recessed groove 12. It is okay to do it.

In addition, in the space between the substrate attachment surface 11 and the lower cover 20, the convex lens is positioned at a position corresponding to the fixed position of the LED lamp 2 in order to more efficiently radiate the light of the LED lamp 2. By having the auxiliary cover 30 formed with (31), the convex lens 31 is concentrated by the light of the LED lamp 2 to be more smoothly emitted.

At this time, the auxiliary cover 30 is formed so that the second air hole 32 corresponding to the above-described air circulation hole 13 and the through hole 21 is formed, the air introduced from the outside of the lower cover 20 smoothly Preferably, the auxiliary cover 30 is formed on the outer circumference of the auxiliary cover 30 so that the auxiliary cover 30 is tightly fixed to the housing 10 so that the auxiliary cover 30 is connected to the housing 10. Make sure that it is firmly fixed.

Accordingly, the light emitted from the plurality of LED lamps 2 is concentrated through the convex lens 31, so that the light emitting effect of the LED lighting device is further increased and smooth cooling is performed, thereby stably lighting the LED lamp 2. You lose.

In addition, the recessed groove 12 formed on the upper surface of the housing 10 prevents rain water or foreign matter from flowing into the substrate attachment surface 11 through the air circulation hole 13, while allowing the heat exchanged air to be discharged smoothly. The upper cover 40 is to be provided.

The upper cover 40 is formed so as to correspond to the shape of the upper surface of the housing 10, a plurality of air discharge hole 41 is formed in a position that is offset from the above-described air circulation hole 13 recessed groove 12 The high temperature air passing through the) is discharged to the outside of the housing 10 through the air discharge hole 41, by forming a fastening jaw 42 to be fastened and fixed to the housing 10 along the outer periphery, LED When the lighting device is installed in an outdoor environment, rainwater or foreign matters are prevented from entering the substrate attaching surface 11 through the air circulation hole 13, whereby rainwater or foreign matters may be separated from the substrate 1 and the LED lamp 2. It is possible to prevent the amount of light from falling off or the occurrence of a short circuit.

In addition, the outside of the housing 10 is to be coupled to the support 50 to allow the LED lamp (2) is easily fixed to the wall of the building or a pillar of the street lamp, the support 50 is one end of the building outer wall or A first support 51 fixed to a pillar of a street lamp, and a second support 52 hinged to an end of the support 1 and the opposite end fixed to an outer surface of the housing 10 described above. On the surface where the first support 51 and the second support 52 are in contact with each other, a toothed portion 53 is formed to be radially recessed and protruded.

Accordingly, after the first support 51 and the second support 52 are rotated at the desired angle so that the teeth 53 are engaged, the hinge portions of the first and second supports 51 and 52 are normally By fastening and fastening using bolts and nuts, the LED lighting device having a heavy load is firmly fixed at a desired angle so that the user can have a stable lighting effect at an optimal angle.

2 is an enlarged cross-sectional view of the convex lens of the present invention. In the above-described convex lens 31, the inner surface corresponding to the LED lamp 2 forms a plane and the outer surface disposed on the opposite side forms a curved surface, or the inner surface. Although both the outer and outer surfaces may be formed as curved surfaces having the same radius of curvature, the light emitted from the LED lamp 2 passes through the convex lens 31 and maximizes the diffusion range. It is preferable to make the radius of curvature of the corresponding inner side surface 311 larger than the radius of curvature of the outer side surface 312 facing outward of the housing.

Accordingly, the light emitted from the LED lamp 2 is irradiated to a larger area while the inner surface 311 and the outer surface 312 pass through the convex lens 31 having different radii of curvature, so that the overall size of the LED lighting apparatus is increased. The light irradiation area is maximized so that the lighting effect is maximized when used as a street lamp or indoor lighting.

Figure 3 shows a second embodiment of the present invention, Figure 3a is an exploded perspective view according to a second embodiment of the present invention, Figure 3b is a perspective view showing a coupling state of Figure 3a, Figure 3c is a longitudinal section of Figure 3b As a figure, this embodiment includes all the components of the above-described embodiment, the LED lighting device in the present embodiment to the ceiling using screws along the outer periphery of the housing 10 to be fixed to the ceiling of the building The fixing hole 16 to be fixed is formed.

Accordingly, a plurality of air circulation holes 13 are formed so that the LED lighting device to be quickly cooled by natural convection can easily be used as a ceiling lamp.

Figure 4 shows a third embodiment of the present invention, Figure 4a is an exploded perspective view according to a third embodiment of the present invention, Figure 4b is a perspective view of the upper surface of the housing according to the third embodiment of the present invention, Figure 4c is a perspective view showing a coupling state, and FIG. 4d is a longitudinal cross-sectional view of FIG. 4c, which includes all the components of the second embodiment in the present embodiment, and is coupled to an upper surface of the housing 10 as described above. 40 is fastened and fixed integrally by the spiral (15).

Accordingly, when replacing or repairing the LED lamp 2, the lower cover 20, the auxiliary cover 30 and the housing 10 with the upper cover 40 fixed to the ceiling without using a separate tool. The bay can be easily removed, making maintenance and repair more convenient.

1 shows a first embodiment of the present invention,

   1A is an exploded perspective view according to a first embodiment of the present invention;

   Figure 1b is a perspective view showing a coupled state of Figure 1a.

   1C is a longitudinal cross-sectional view of FIG. 1B.

2 is an enlarged cross-sectional view of the convex lens of the present invention;

3 shows a second embodiment of the present invention,

   3A is an exploded perspective view according to a second embodiment of the present invention;

   Figure 3b is a perspective view showing a coupled state of Figure 3a.

   3C is a longitudinal cross-sectional view of FIG. 3B.

4 shows a third embodiment of the present invention,

   Figure 4a is an exploded perspective view according to a third embodiment of the present invention,

   4B is a perspective view of an upper surface of a housing according to a third embodiment of the present invention;

   Perspective view showing a combined state of Figure 4c,

   4D is a longitudinal cross-sectional view of FIG. 4C.

Figure 5 is a longitudinal sectional view showing an example of a conventional LED lighting device.

[Description of Drawings]

1: substrate 2: LED lamp

10: housing

   11 substrate mounting surface 12 recessed groove

   121: heat exchange fin 13: air circulation hole

   14: moisture barrier 15: spiral

20: lower cover

   21: through hole 22: flange

30: auxiliary cover

   31: convex lens 32: the second through

   33: flange

40: upper cover

   41: air discharge hole 42: fastening jaw

50: support

   51: first support 52: second support

   53: tooth part

Claims (8)

A lower surface of the lower surface protrudes inclined downwardly to form a substrate attaching surface 11 to which the substrate 1 to which the at least one LED lamp 2 is coupled is formed, and the recessed recess in which the upper surface is recessed to correspond to the substrate attaching surface 11. A housing (10) formed with at least one air circulation hole (13) penetrating up and down on the substrate attachment surface (11); Is formed of a transparent material is coupled to the lower surface of the housing 10, to prevent the inflow of moisture and foreign matter into the inside of the substrate attachment surface 11, the through-hole 21 corresponding to the air circulation hole 13 is A lower cover 20 formed; LED lighting device comprising a. The method of claim 1, LED lighting device, characterized in that the moisture barrier tube 14 protruding downward along the outer circumference of the air circulation hole 13 and the end is in contact with the through-hole 21. The method of claim 1, Inserted and fixed in the space between the lower cover 20 and the housing 10, the convex lens 31 is formed at a position corresponding to the LED lamp 2, the air circulation hole 13 and the through hole 21 LED lighting device, characterized in that further provided with a secondary cover (30) formed corresponding to the second hole (32). The method of claim 3, wherein The convex lens 31, LED curvature radius of curvature of the inner surface (311) corresponding to the LED lamp (2) is formed larger than the radius of curvature of the outer surface (312) toward the outer side of the housing. The method of claim 1, LED lighting device is coupled to the upper surface of the housing 10, characterized in that the upper cover 40 is further provided with a plurality of air discharge holes 41 formed in a position deviated from the air circulation hole (13). The method of claim 1, LED lighting apparatus, characterized in that a plurality of heat exchange fins 121 are formed on the inner surface of the recessed groove (12). The method of claim 1, The substrate mounting surface (11), LED lighting apparatus, characterized in that formed on the lower surface of the housing 10 by varying the inclination angle. The method according to any one of claims 1 to 5, A support 50 is fixed to one side of the housing 10 and coupled to an outer wall of a building or a pillar of a street lamp, and the support 50 is a first support 51 fixed to an outer wall of the building or a pillar of a street lamp. And a second support 52 having one end hinged to the first support 51 and the other end fixed to the housing 10, and a surface where the first support 51 and the second support 52 come into contact with each other. LED lighting apparatus, characterized in that the tooth portion 53 is formed to protrude radially corresponding to each other.

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