KR101020623B1 - Led lighting apparatus - Google Patents

Abstract

PURPOSE: An LED lamp is provided to prevent a glare phenomenon by smoothly scattering emitted light. CONSTITUTION: The lower side of a case(10) is opened. A power supply unit is mounted on the upper side of the inside of a case(10). A reflection plate(30) reflects light from the bottom. A heat sink(41) is inserted into a mounting groove. A printed circuit board is installed on the lower side of the heat sink. An LED module(40) transmits heat to the reflection plate. A light guide member(50) scatters light emitted from an LED(43). A fixing bracket(60) fixes the light guide member.

Description

LED luminaires {LED LIGHTING APPARATUS}

The present invention relates to an LED luminaire that illuminates through an LED, and more particularly, to scatter light irradiated from the LED through a light guiding member so that glare caused by a point light source is smoothly solved, and is generally uniform without partial concentration of light. The present invention relates to an LED luminaire that enables illumination, to smoothly block the heat generated from the power supply to the LED, and to allow the heat generated by the LED to be properly emitted through the reflector.

In general, luminaires, such as lamps, have been supplied with power to convert electrical energy into light energy, thereby enabling the user to identify objects even in the dark, and have become a catalyst for the revolutionary development of human civilization. Tools are used in various forms, for example, the first development of incandescent light bulbs, which generate more heat than light and can be manufactured inexpensively.

The fluorescent lamp was introduced to improve the above-mentioned disadvantages, which has the advantage of saving energy because the ratio of converting electrical energy to light energy is higher than the light bulb, but it has a long time required for lighting and its life is short. It requires a medium.

LED (Light emitting diode) was developed in response to this, the high light intensity with a small power, and its life is significantly longer than a few years without special repairs for one company, so it is recently attracting much attention as a lighting lamp.

One example of a luminaire for lighting by using an LED is an LED luminaire to be used by embedding in a ceiling, which will be described below with reference to FIGS. 8 to 10.

As shown, the conventional LED luminaire has a top surface 11 that is in close contact with the ceiling (8) or the wall surface, and a luminaire portion (12) orthogonal to the top surface 11 and the side surface 12 is formed with a binding groove 121 ( 1) and; A plurality of slit grooves 44 are formed on the outer circumference, and an upper accommodating portion 41 and a lower accommodating portion are formed therein, and the upper case 4 is inserted into and coupled to the side surface 12 of the luminaire 1. Wow; An LED module (3) arranged with a plurality of LEDs (31) disposed in the upper housing portion (41) of the upper case (4);

A protective plate (2) formed on the LED combination (3) and having a lens (21) formed on each of the LEDs (31); A lower case 6 formed with a plurality of slit grooves 61 and fastened to the lower part of the upper case 4; A terminal (7) inserted into the rear end of the lower case (6); It is accommodated in the lower housing portion of the upper case 4, is coupled to and electrically connected to a power supply 51 for receiving and adjusting the power supplied from the terminal 7 and then supplying to each of the LEDs 31 Cooling fan 5; will be configured.

Therefore, the conventional LED luminaire configured as described above is the upper surface 11 in close contact with the ceiling (8) or the wall surface, and the luminaire portion (1) made of a side surface 12 for supporting the buried light, etc. has a beautiful aesthetic, the interior Protecting the protection plate (2), the LED module (3) and the cooling fan (5) accommodated in the upper case (4) to improve the heat dissipation function by the high breathability of the slit groove (44), the protection of the internal parts and slit groove Due to the high breathability of (61), the lower case that functions as a cooling function, the LED module (3) focusing a plurality of LEDs 31, the light emitted from the LEDs 31 can be collected or distributed / focused at a predetermined angle In order to provide the desired shape of light, a protective plate (2) to protect the LED (31) from impact, a terminal (7) for receiving power properly, a cooling fan (5) and the appropriate power supply and control of each device It is composed of a power supply 51 and the like.

However, the above conventional technology has the following problems.

LEDs have the advantage of being able to illuminate bright light with low power, while the light emitted from the light emitting elements is straight, so that the light irradiated from each LED mounted inside the luminaire is spot light. The light appearing as a point light source had a problem of strong glare when a person looked at it.

In addition, by irradiating with a point light source from each of the plurality of LEDs as described above, only a portion having a point light source is very bright at the time of illumination, and the remaining portions are relatively dark, thereby preventing uniform illumination.

In addition, as the power supply is closely coupled to the LED module, heat generated from the power supply is conducted to the LED module, thereby degrading its lifespan.

Accordingly, the present invention has been made to solve the conventional problems as described above,

An object of the present invention is to scatter the light irradiated from the LED through the light guiding member so that the glare caused by the point light source can be smoothly solved, and can be generally uniformly illuminated without partial concentration of light, and heat generated from the power supply is The present invention provides an LED luminaire that smoothly blocks the conduction of the LED and enables the heat generated by the LED to be properly discharged through the reflector.

In addition, another object of the present invention is to provide an LED luminaire to install a reflective member at the lower end of the light guide member so that the light traveling straight through the light guide member is reflected so that light scattering by the light guide member can be more smoothly performed.

In addition, another object of the present invention is to provide an LED luminaire for attaching a color film with a simple structure so that yellow light can be emitted.

In addition, another object of the present invention is to provide an LED luminaire having a radiating fin and a radiating hole so that the heat is released by the reflecting plate stably and smoothly.

"LED luminaire" according to the present invention for achieving the above object, and the case is open lower; A power supply mounted on an inner upper surface of the case; A reflection plate mounted inside the case so as to cover the open lower portion of the case while being spaced apart from the power supply, and having an inclined surface formed at both sides and a mounting groove formed at the center between the inclined surface, and reflecting light from the lower surface; A heat dissipation part inserted into the mounting groove, a printed circuit board installed on a lower surface of the heat dissipation part, and an LED mounted on a lower surface of the printed circuit board, and the heat conducted from the LED to the heat dissipation part to the reflecting plate. An LED module capable of being turned over; An upper end is provided on a lower surface of the heat dissipation unit so as to surround the LED and the printed circuit board, and a lower end is located inside the reflecting plate, and is formed in a cross-sectional shape of a truncated inverted triangle that narrows from an upper side to a lower side. A light guide member for scattering light irradiated downward by the light guide member; An upper end is mounted to the heat dissipation part while being fitted around the outer circumference of the light guide member, and a through hole is formed corresponding to both side surfaces of the light guide member to fix the light guide member while guiding the light passing through the light guide member to the reflector. A fixing bracket for making; It is characterized by including.

In addition, the light guide member of the "LED luminaire" according to the present invention further comprises a triangular groove formed in a triangular shape protruding obliquely upward in both directions at the lower end, the fixing bracket is inserted into the triangular groove It is formed so that it further comprises a blocking member for blocking the light passing through the lower end of the light guide member.

In addition, the fixing bracket of the "LED lamp" according to the present invention, characterized in that it further comprises a reflecting member attached to the upper surface of the blocking member and inclined to reflect the light passing through the lower end of the light guide member to the upper side. .

In addition, the light guide member of the "LED luminaire" according to the present invention is attached to both sides of the light guide member corresponding to the through-hole, the color film of the opaque material to change the light passing through the light guide member to yellow to yellow It characterized in that it further comprises.

In addition, the "LED luminaire" according to the present invention is mounted on the bottom of the case so as to cover the open lower portion of the case, a transparent cover formed of a transparent material; It further comprises.

In addition, the reflector of the "LED luminaire" according to the invention is characterized in that it further comprises a plurality of heat radiation fins protruding on the upper surface and dissipating heat conducted to the reflector.

In addition, the "LED luminaire" according to the present invention is mounted to the inside of the case to be in close contact with the upper surface of the reflecting plate, a plurality of auxiliary heat radiation fins are formed on the upper and lower surfaces, while supporting the reflecting plate to transfer the heat of the reflecting plate to the outside Radiating a heat dissipation support plate; It further comprises.

In addition, the case of the "LED luminaire" according to the present invention, the heat radiation through the auxiliary heat radiation fins further comprises a plurality of heat dissipation holes formed in the side and the upper surface of the case to be discharged to the outside of the case; Characterized in that.

As described above, the present invention, the light emitted from the LED through the light guide member to scatter the glare caused by the point light source is smoothly solved, and can be generally uniformly illuminated without partial concentration of light, generated in the power supply Heat is effectively prevented from being conducted to the LED, and heat generated from the LED is properly released through the reflector to have an effect of extending the life.

In addition, the present invention has an effect that the reflection member is provided at the lower end of the light guide member so that the light traveling straight through the light guide member is reflected, so that light scattering by the light guide member is more smoothly performed.

In addition, the present invention, by attaching a color film with a simple structure, the yellow light can be emitted, accordingly has the effect that the illumination of daylight color is easily expressed.

In addition, the present invention is provided with a heat radiation fin and a heat dissipation hole is a stable and smooth release of heat by the reflecting plate, thereby having an effect that the heat radiation of the LED module is smooth.

1 is a bottom perspective view of an LED luminaire according to the present invention;
2 is a partially exploded perspective view of the LED luminaire according to the present invention,
3 is a longitudinal sectional view of the LED luminaire according to the present invention;
4 is an enlarged view illustrating main parts of FIG. 3;
Figure 5 is an enlarged longitudinal sectional view of the main portion showing another embodiment of the LED luminaire according to the present invention,
Figure 6 is a longitudinal cross-sectional view showing another embodiment of the LED luminaire according to the present invention,
Figure 7 is a longitudinal cross-sectional view showing another embodiment of the LED luminaire according to the present invention,
8 is a bottom perspective view showing an installation state of a conventional recessed LED luminaire,
Figure 9 is a side view showing the installation state of the conventional LED luminaire according to Figure 8,
10 is an exploded perspective view of a conventional LED luminaire according to FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the present invention may be embodied in many different forms and should not be limited to the described embodiments.

Figure 1 is a bottom perspective view of the LED luminaire according to the invention, Figure 2 is a partially exploded perspective view of the LED luminaire according to the invention, Figure 3 is a longitudinal sectional view of the LED luminaire according to the invention, Figure 4 is a main part of Figure 3 It is an enlarged view.

As shown in the figure, the LED luminaire according to the present invention is mounted to the case 10, the power supply 20 installed in the case 10, and the lower portion of the power supply 20 to the case 10. A reflecting plate 30, an LED module 40 installed on the reflecting plate 30, a light guiding member 50 provided in the LED module 40, and a fixing bracket for fixing the light guiding member 50 ( 60 and a transparent cover 70 mounted on the lower end of the case 10.

The case 10 has a structure in which the lower part is opened, and serves to provide a space in which related components are mounted. It is well known that the case 10 uses a known fixing means for fixing the case 10 when it is installed.

The power supply 20 is mounted on the inner upper surface of the case 10, is connected to a conventional commercial power supply to supply power to the LED module 40, and generally SMPS (switching) -mode power supply is used.

The reflective plate 30 is mounted inside the case 10 so as to cover the open lower portion of the case 10 while being spaced apart from the power supply 20, and has an inclined surface 31 and the inclined surface formed on both sides thereof. 31) has a mounting groove 32 formed in the center between the reflecting light from the lower surface.

The reflector 30 having such a structure serves to reflect the light irradiated through the LED module 40 to the lower side through the inclined surface 31. The mounting groove 32 provides a position at which the LED module 40 is mounted, and at the same time, conducts heat generated from the LED module 40 to the inclined surface 31 formed integrally to the outside of the LED module 40. It serves to release.

In addition, the reflector 30 is disposed between the power supply 20 and the LED module 40 to block heat generated from the power supply 20 from being transmitted to the LED module 40. .

The LED module 40 includes a heat dissipation part 41 inserted into the mounting groove 32, a printed circuit board 42 installed on a lower surface of the heat dissipation part 41, and the printed circuit board 42. ) Has an LED 43 installed on the lower surface.

The LED module 40 generates light through the LED 43 mounted on the printed circuit board 42 to illuminate downward toward the light guide member 50, and prints with the LED 43. Heat generated in the circuit board 42 is conducted to the heat radiating portion 41 to radiate heat, and heat conducted to the heat radiating portion 41 is conducted to the reflecting plate 30 and discharged to the outside.

The light guide member 50 has an upper end disposed on a lower surface of the heat dissipation part 41 so as to surround the LED 43 and the printed circuit board 42, and a lower end is located inside the reflective plate 30. It is formed in the cross-sectional shape of the truncated inverted triangle becomes narrower toward the bottom, and serves to scatter the light irradiated downward by the LED (43).

Since the light guide member 50 has a truncated inverted triangular structure, a portion close to the LED 43, that is, a portion in which a large amount of light is generated is relatively thick and scattered relatively more than a thin portion. The light guide member 50 has a structure that scatters substantially uniformly from the top to the bottom, and also has a relatively long length than the width to properly scatter light having a relatively straightness rather than horizontal mobility. 50 to scatter the light irradiated by the LED 43 to emit light to the outside generally uniformly.

As the light guide member 50 is uniformly emitted as a whole, the glare caused by the point light source generated by the LED 43 is smoothly eliminated.

The fixing bracket 60 is mounted on the heat dissipation part 41 in an upper state of being fitted around the outer circumference of the light guide member 50, and the through hole 61 is formed to correspond to both side surfaces of the light guide member 50. The light guide member 50 serves to fix the light guide member 50 while guiding the light passing through the light guide member 50 to the reflecting plate 30.

That is, the fixing bracket 60 surrounds the light guiding member 50 and fixes the light to the lower surface of the LED module 40 while receiving the light emitted from the light guiding member 50 through the through hole 61. It serves to guide to the inclined surface 31 of the reflecting plate 30.

The transparent cover 70 is mounted on the lower end of the case 10 and is formed of a transparent material, and covers parts that are installed inside the case 10 from the outside by covering the open lower part of the case 10. It protects you. The transparent cover 70 is preferably formed of a transparent material such as an acrylic plate, a glass plate so that the light emitted through the light guide member 50 or reflected through the reflecting plate 30 can be properly transmitted.

Referring to the operating state of the LED luminaire according to the present invention configured as described above are as follows.

First, when power is supplied to the LED module 40 by the power supply 20 connected to the commercial power source, the LED 43 emits light and irradiates light downward toward the light guide member 50.

The light irradiated by the LED 43 is generally uniformly scattered while passing through the light guiding member 50 to uniformly emit the light guiding member 50, thereby eliminating the glare caused by the point light source.

In this state, the light emitted through the light guide member 50 is irradiated to the reflecting plate 30 through the through hole 61 or directly to the lower side to shine the light toward the open lower side of the case 10.

As such, the heat generated as the LED 43 is operated is conducted to the inclined surface 31 through the mounting groove 32 of the reflecting plate 30 via the heat dissipation unit 41, and thus It is emitted to the outside through the rear surface of the inclined surface (31).

Figure 5 is an enlarged longitudinal sectional view showing the main portion showing another embodiment of the LED luminaire according to the present invention.

As shown in the drawing, the light guide member 50 further includes a triangular groove 51 formed at a lower end thereof in a triangular shape protruding obliquely upwards, and the fixing bracket 60 includes the triangular groove ( It further comprises a blocking member 62 is formed to be inserted into 51.

The triangular groove 51 is to allow the lower end of the light guide member 50 to be smoothly fixed to the fixing bracket 60, the blocking member 62 is light passing through the lower end of the light guide member 50. It serves to block.

As such, by blocking the light passing through the lower end of the light guide member 50 by the blocking member 62, the point light source is smoothly prevented by the light traveling straight through the lower end of the light guide member 50.

The fixing bracket 60 further includes a reflecting member 63 attached between the top surfaces of the blocking members 62. The reflective member 63 serves to reflect the light passing through the lower end of the light guide member 50 inclined upward. By the reflection of the light by the reflective member 63 as described above, the light guide member 50 can scatter more light.

The light guide member 50 further includes a color film 52 of opaque material attached to both sides of the light guide member 50 to correspond to the through hole 61 and having a yellow color. The color film 52 changes the light passing through the light guide member 50 to yellow so that the color film 52 can be illuminated in daylight color. As described above, it is easily recognized that the color film 52 can be illuminated in various colors by changing the color.

Figure 6 is a longitudinal sectional view showing another embodiment of the LED luminaire according to the present invention.

As shown therein, the reflector plate 30 further includes a plurality of heat dissipation fins 33 protruding from the upper surface thereof. The heat dissipation fin 33 serves to more smoothly discharge the heat conducted to the reflector 30 to the outside of the reflector 30.

The case 10 further includes a plurality of heat dissipation holes 11 formed on side surfaces and upper surfaces thereof. The heat dissipation hole 11 is to allow heat discharged through the heat dissipation fin 33 to be discharged to the outside of the case 10.

That is, the heat dissipation hole 11 is generated in the LED module 40 and passed through the mounting groove 32 to the inclined surface 31 of the reflecting plate 30, and then the case 10 by the heat dissipation fin 33. The heat emitted into the inside of the c) may be discharged to the outside of the case 10 by a natural phenomenon such as circulation of outside air or a natural phenomenon such as convection.

Figure 7 is a longitudinal sectional view showing another embodiment of the LED luminaire according to the present invention.

As shown in this, the luminaire is mounted to the inside of the case 10 in close contact with the upper surface of the reflecting plate 30, and further comprises a heat dissipation support plate 80 having a plurality of auxiliary heat dissipation fins 81 formed on the upper and lower surfaces thereof. Include. The heat dissipation support plate 80 receives heat from the reflector 30 while supporting the reflector 30, and serves to release heat generated from the LED module 40 together with the reflector 30 to the outside.

That is, the heat dissipation supporting plate 80 serves to release heat conducted to the reflecting plate 30 and at the same time serves to stably support the lower surface of the reflecting plate 30 when assembling the luminaire. It also serves to block the heat generated from the power supply 20 installed in the inside of the LED module 40 with the reflector 30 to some extent.

The case 10 further includes a plurality of heat dissipation holes 11 formed on side surfaces and upper surfaces thereof. The heat dissipation hole 11 is to allow heat discharged through the auxiliary heat dissipation fin 81 to be discharged to the outside of the case 10.

That is, the heat radiating hole 11 is generated in the LED module 40 is passed through the mounting groove 32 to the inclined surface 31 of the reflecting plate 30, the heat released into the case 10 Or after being conducted from the mounting groove 32 to the heat dissipation support plate 80 through the auxiliary heat dissipation fin 81, the heat released into the interior of the case 10, such as natural phenomena such as circulation of the outside air or natural such as convection It is to be discharged to the outside of the case 10 by the development.

Although preferred embodiments of the present invention have been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

10: case
11: heat sink
20: power supply
30: reflector
31: slope 32: mounting groove
33: heat radiation fin
40: LED module
41: heat dissipation unit 42: printed circuit board
43: LED
50: light guide member
51: triangle groove 52: color film
60: fixed bracket
61 through hole 62 blocking member
63: reflective member
70: transparent cover
80: heat dissipation support plate
81: auxiliary heat radiation fin

Claims (8)

A case 10 whose lower part is opened;
A power supply 20 mounted on an inner upper surface of the case 10;
Spaced apart from the power supply 20 and mounted in the case 10 so as to cover the open lower portion of the case 10, and formed in the center between the inclined surface 31 and the inclined surface 31 formed on both sides. Reflecting plate 30 having a mounting groove 32, which reflects the light from the lower surface;
A heat dissipation part 41 inserted into the mounting groove 32, a printed circuit board 42 installed on the bottom surface of the heat dissipation part 41, and an LED installed on the bottom surface of the printed circuit board 42. An LED module having a 43 and capable of conducting heat conducted from the LED 43 to the heat dissipation part 41 to the reflector 30;
The upper end is provided on the lower surface of the heat dissipation portion 41 so as to surround the LED 43 and the printed circuit board 42, the lower end is located in the inner side of the reflecting plate 30, the narrower from the top to the bottom A light guide member 50 formed in a cross-sectional shape of a double inverted triangle and scattering light irradiated downward by the LED 43;
An upper end is mounted to the heat dissipation part 41 in a state of being fitted around the outer circumference of the light guide member 50, and a through hole 61 is formed to correspond to both side surfaces of the light guide member 50, so that the light guide member 50 is formed. A fixing bracket (60) for fixing the light guide member (50) while guiding the light passing through the reflective plate (30);
LED luminaires comprising a.
The method of claim 1,
The light guide member 50 further includes a triangular groove 51 formed at a lower end thereof in a triangular shape protruding obliquely upward in both directions.
The fixing bracket 60 is formed to be inserted into the triangular groove 51, LED lighting fixture further comprises a blocking member 62 for blocking the light passing through the lower end of the light guide member 50. .
The method of claim 2,
The fixing bracket 60,
Reflecting member 63 is attached to the upper surface of the blocking member 62 and reflecting the light passing through the lower end of the light guide member 50 inclined upwardly,
LED luminaires further comprising.
The method of claim 1,
The light guide member 50,
Corresponding to the through-hole 61 is a color film 52 of opaque material attached to both sides of the light guide member 50 and having a yellow color to change the light passing through the light guide member 50 to yellow,
LED luminaires further comprising.
The method of claim 1,
A transparent cover 70 mounted on a lower end of the case 10 to cover an open lower portion of the case 10 and formed of a transparent material;
LED luminaires further comprising.
The method of claim 1,
The reflector plate 30,
A plurality of heat dissipation fins 33 protruding on the upper surface and dissipating heat conducted to the reflecting plate 30,
LED luminaires further comprising.
The method of claim 1,
It is mounted to the inside of the case 10 in close contact with the upper surface of the reflecting plate 30, a plurality of auxiliary heat radiation fins 81 are formed on the upper and lower surfaces, while supporting the reflecting plate 30, the row of the reflecting plate 30 The heat dissipation support plate 80 for discharging the outside;
LED luminaires further comprising.
The method of claim 7, wherein
The case 10,
A plurality of heat dissipation holes 11 formed on the side and the upper surface of the case 10 so that the heat discharged through the auxiliary heat radiation fin 81 can be discharged to the outside of the case 10,
LED luminaires further comprising.

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