KR20190054595A - LED lighting lamp of down-lighting type - Google Patents

Abstract

The present invention relates to an LED lighting lamp with downward lighting which emits an LED light source installed in a frame buried in a ceiling or wall. According to an embodiment of the present invention, the LED lighting lamp with downward lighting comprises: a hollow outer housing including a flange having a stopping protrusion formed on a bottom surface, and a cylindrical protrusion unit vertically extended from an inner side of the flange; a hollow inner housing which includes a flange seated on the stopping protrusion, an extension part extended upwards from the flange, and a stopping protrusion formed on an upper portion of the extension part in an annular shape, and is arranged in the outer housing; a reflector case including a bracket of a ring shape seated on the stopping protrusion, and a body formed in the bracket, wherein an upper and a lower end thereof are opened; a reflector accommodated in the reflector case and provided with a reflection plate formed on an inner side thereof and a cover formed on a lower end thereof, wherein an upper and a lower end thereof are opened; an LED module which is formed on an upper end of the reflector, and includes an LED to be lit by applying power, a PCB on which the LED is mounted, and a diffusion cover attached to the PCB to uniformly diffuse light emitted by the LED; and a heat sink which allows the LED module to be tightly mounted on a bottom surface thereof, and has a heat radiation fin to radiate heat generated from the LED.

Description

(LED lighting lamp of down-lighting type)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED lighting lamp, and more particularly, to a downlight type LED lighting lamp for emitting an LED light source embedded in a ceiling or a wall embedded in a wall.

Generally, since the photoelectric conversion efficiency of a LED is high, the power consumption is as low as about 5 W, so that the heat generation is small, and since the LED does not emit light by thermal discharge, the preheating time is unnecessary.

In addition, since LEDs are free of gas or filament, they are strong against impact, safe, have a semi-permanent life and have various color lighting effect, and miniaturization of illumination lamp is possible by using a small light source.

On the other hand, the downlight type lighting apparatus has a structure in which a cylinder-shaped frame is embedded in a ceiling or a wall of a board form to make the installation site clean, and the light source and the reflector are installed inside the frame so as not to be exposed to the outside. At this time, the light source is replaced with an LED in consideration of the electricity usage fee and the service life of the light source.

Although not shown in the drawing, a conventional LED-type lighting apparatus (Utility Model Registration No. 0302769) has a finger seat on the outer circumferential surface divided into a heat radiating fin and a circumference, an LED left inside, A conventional LED assembly 2 in which LEDs are attached to the surface of a substrate on which a wire hole is perforated, and a block lens-type cover 3 at the tip of the aluminum eyelet.

That is, the LED-type lighting device has the LED assembly 2 with the LED attached to the left side of the LED formed on the aluminum shoulder 1 with the heat dissipating fins formed thereon, and the aluminum lid 1 is covered with the block lens- , It has an advantage that it can reduce the energy cost and the miniaturization because the power consumption is less than that of the halogen lamp.

On the other hand, since the conventional LED type lighting apparatus is manufactured by die casting, which is a precision casting method, the manufacturing cost is increased, the price competitiveness is lowered, and the lighting apparatus has a disadvantage of having a considerable weight. In particular, the heat dissipating fin is integrally formed on the outer circumferential surface of the aluminum shoulder 1, and the mold cost for manufacturing the same is increased.

An LED-type lighting fixture is disclosed in Korean Utility Model Registration No. 20-0302769.

Therefore, the embodiment of the present invention is a lighting device that can simplify the structure of a frame or a heat sink to be embedded in a ceiling or a wall, and can reduce a time required for assembling a lighting part with a one- Type LED lighting.

The embodiments of the present invention relate to a downlight type LED lighting fixture that is manufactured separately from a reflector and then assembled to improve manufacturing and assembling workability.

Embodiments of the present invention are directed to an LED module that increases the contact area between the LED module and the heat sink and the cross sectional area of the heat dissipation fin to rapidly dissipate the heat emitted from the LED and selectively adjust the angle of illumination of the LED light, Down light type LED lighting lamp.

In order to achieve the above and other objects of the present disclosure, according to one embodiment of the present disclosure,

An outer housing having a flange formed with a locking protrusion on a bottom surface and a cylindrical protrusion extending perpendicularly to the flange inner end, the inner housing being hollow;

A flange which is seated on the latching jaw; an extension piece which extends upwardly in the flange; and a locking protrusion which is formed in an annular shape on an upper portion of the extension piece, and which is disposed inside the outer housing, housing;

A ring-shaped bracket that is seated on the latching jaw, and a reflector case which is formed by the inside of the bracket and whose upper and lower ends are opened;

A reflector accommodated in the reflector case, having a reflector formed on an inner surface thereof, an upper end and a lower end opened, and a cover at the lower end;

An LED mounted on the upper surface of the reflector, the LED mounted on the PCB, the LED mounted on the PCB, and the diffusion cover uniformly diffusing light emitted from the LED;

And a heat sink for mounting the LED module in close contact with a bottom surface of the LED module and having a heat dissipation fin for dissipating heat generated from the LED module.

The embodiment of the present invention configured as described above has the following advantages.

The structure of the heat sink mounted on the ceiling or the wall and the frame mounted on the frame is simplified to reduce the manufacturing cost thereof and the assembly time of the lighting parts and the lighting parts are shortened, The cost can be reduced.

In addition, since the heat sink is manufactured separately from the reflector and assembled, the manufacturing cost of the mold can be reduced and the price competitiveness can be enhanced.

In addition, by increasing the contact area between the LED module and the heat sink and the cross-sectional area of the heat sink, maximizing the heat dissipation effect through the heat sink and rotating the reflector, the angle of illumination of the LED light can be adjusted according to the location, Signboards, and crime prevention.

1 is an exploded perspective view of a downlight type LED lighting lamp according to a preferred embodiment of the present invention,
Fig. 2 is a perspective view of the illumination lamp shown in Fig. 1,
Fig. 3 is a schematic use state diagram of the illumination lamp shown in Fig. 1,
4 is a sectional view of the illumination lamp shown in Fig.

Hereinafter, a downlight type LED lighting lamp according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, a downlight type LED lighting lamp according to an embodiment of the present invention includes:

An outer housing 13 formed of a flange 11 on which a locking protrusion 10 is formed on the bottom surface and a cylindrical protrusion 12 extending perpendicularly to the inner end of the flange 11 and having an inner space;

A flange 14 that is seated on the latching jaw 10 and an elongated piece 15 that is formed to extend in a tapered manner upward in the flange 14 An inner housing 17 formed inside the outer housing 13, the inner housing 17 being hollow inside;

A reflector case 20 formed of a ring-shaped bracket 18 seated on the latching jaw 16 and a body 19 formed inside the bracket 18 and having an upper end and a lower end opened;

The LED module 27 is accommodated in the reflector case 20 and the reflector 21 is formed in a lattice structure or a honeycomb structure (not shown) on the inner side and the upper and lower ends thereof are opened. (Which may be formed of a light-transmissive synthetic resin material so as to transmit LED light, for example) is formed at the lower end of the reflector 23 so as to protect the LED light from the ceiling Reflective reflector etc);

An LED 24 disposed on the upper end of the reflector 23 and emitting light through a stabilizer (not shown) according to the power application, a PCB 25 on which the LED 24 is mounted, An LED module (27) having a diffusion cover (26) attached to the LED (24) and uniformly diffusing light emitted from the LED (24);

And a heat sink 29 on which the LED module 27 is mounted in close contact with the bottom surface and on which a heat dissipation fin 28 for dissipating heat generated from the LED 24 is formed.

According to a more preferred embodiment of the present invention, the fixing member 30 having an elastic force which is opposed to the inner surface of the protrusion 12 of the outer housing 13 and presses and supports the outer surface of the locking protrusion 16 of the inner housing 17 ). ≪ / RTI >

A resilient force for fixing the flange 11 of the outer housing 13 to the ceiling panel (not shown), which is mounted opposite to the protruding portion 12 of the outer housing 13 and in which the embedding groove 31 is formed, (Not shown).

LED (24) to adjust the angle of light irradiation

A fastening plate 33 is extended opposite to the bracket 18 of the reflector case 20 and the body 19 of the reflector case 20 is rotatably fixed to the fastening plate 33 within an arbitrary angle.

A plurality of protrusions 35 are formed on the outer periphery of a cylindrical supporter 34 that supports the lower end of the reflector 23 and a cutout 36a is formed so as to face the protrusions 35, The protruding jaw 35 of the reflector 23 is coupled to the reflector case 20 so as to pass through the cutout 36a by forming the protruding portion 36 of the reflector 23 so as to face the inner side surface of the body 19 of the reflector case 20. [ So that the protruding jaw 35 can be prevented from being caught by the wing-type stopping jaw 36 when the jig 35 is rotated clockwise or counterclockwise at an arbitrary angle.

The heat sink 29 (for example, an aluminum (Al) material or an aluminum alloy material excellent in thermal conductivity may be used)

A tube 37 in which the PCB 25 is closely fitted and fixed, the bottom surface is closed, the top is opened, the inside is empty,

A radiating fin 28 formed at an outer periphery of the tube 37 so as to be radially equidistant,

And auxiliary heat-radiating fins (38) formed at equal angular intervals at right angles to the radiating fins (28)

A fixing member 39 for covering the LED module 27 or a fastening member for fastening the body 19 of the reflector case 20 to the heat sink 29 may be fixed A radiating fin 28a of the radiating fin 28 is formed in a C-shape.

In the drawing, reference numeral 27a denotes a spacer having an elastic force for closely fixing the PCB 25 to the bottom surface of the heat sink 29.

Hereinafter, use examples of a downlight type LED lighting lamp according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 4, when the above-described inner housing 17 is coupled from the bottom of the outer housing 13 to the upper side, the fixing piece 30 To press the outer side surface of the engaging jaw 16 of the inner housing 17.

At this time, the flange 14 formed on the bottom surface of the inner housing 17 is seated in the engaging jaw 10 formed on the bottom surface of the outer housing 13 correspondingly.

That is, the inner housing 17 is coupled to the inside of the outer housing 13.

The protruding jaw 35 of the reflector 23 is inserted into the reflector case 20 so as to pass through the cutout 36a of the wing-type stopping jaw 36. When the reflector 23 is rotated clockwise or counterclockwise at an arbitrary angle It is possible to prevent the pair of protruding jaws 35 from being caught by the wing-type stopping jaws 36 and being released.

At this time, the fastening plate 39 for wrapping the LED module 27 can be mounted at the center of the heat sink 29 by fastening members (pieces are used).

The heat sink 29 is fixed to the bottom surface of the reflector case 20 by a fastening member (a piece is used to fix the fastening protrusion 20a formed on the upper end of the reflector case 20) (29) can be fixed.

The heat dissipated from the LED module 27 is transmitted to the heat dissipating fin 28 of the heat sink 29 in close contact with the LED module 27 so that the heat is cooled by air circulation. And hence detailed description of the configuration thereof will be omitted.

The reflector 23 can be assembled in a one-touch manner to the reflector case 20 having the heat sink 29 mounted on the upper latching jaw 20a, thereby improving workability.

A ring-shaped bracket 18 constituting a reflector case 20 having a heat sink 29 mounted on its upper end is coupled to the engagement protrusion 16 formed in the inner housing 17 Rest.

At this time, the bracket 18 of the reflector case 20 is pressed by the stopper 16a having an elastic force formed to be bent inward at the upper end of the latching jaw 16 of the inner housing 17, The reflector case 20 can be assembled in a one-touch manner with respect to the reflector case 20, and workability can be improved.

The reflector case 20 in which the reflector 23 is housed and the heat sink 29 is mounted on the upper end is coupled to the inner housing 17 in a one-touch manner as described above, and the inner housing 17 is connected to the outer housing 13), the assembly work of the LED lighting lamp is completed.

Therefore, when the outer housing 13 is buried in a ceiling or a buried groove (not shown) formed on a wall, the protrusion 12 of the outer housing 13 (formed to have an outer diameter smaller than the inner diameter of the buried groove) Shaped pressing member 32 is inserted into the embedding groove in a state in which the pressing member 32 is forcibly folded upward by an operator so that the LED lighting lamp is embedded. The flange 11 of the outer housing 13 is brought into close contact with the panel of the ceiling at this time by the thickness of the flange 11.

Thus, the LED lighting lamp can be embedded in the ceiling or the buried groove formed in the wall.

Therefore, when power is supplied to the PCB 25 to turn on the LED 24, the light of the LED 24 can be diffused and irradiated by the reflector 21 having the lattice structure formed on the inner surface of the reflector 23.

At this time, when the reflector case 20 is mounted on the inner housing 17, the supporter 34 is fixed to the ring-shaped bracket 18 constituting the reflector case 20 with the fastening member S as the center axis Lt; / RTI >

The angle of illumination of the LED 24 mounted on the bottom surface of the heat sink 29 and diffused by the reflector 23 accommodated in the reflector case 20 can be adjusted according to the surrounding environment in which the LED lighting lamp is installed .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the disclosure as defined in the following claims. As will be understood by those skilled in the art.

10; Jaw
11; flange
12; projection part
13; Outer housing
14; flange
15; Extension
16; Jaw
17; Inner housing
18; Bracket
19; body
20; Reflector case
21; Reflector
22; cover
23; Reflector
24; LED
25; PCB
26; Diffusion cover
27; LED module
28; Heat sink fin
29; Heatsink
30; Fixing piece
31; Landfill
32; Squeeze
33; Fastening plate
34; supporter
35; Protruding chin
36; Wing clasp jaw
37; tube
38; Auxiliary radiating fin
39; Fixed plate

Claims (6)

An outer housing having a flange formed with a locking protrusion on a bottom surface and a cylindrical protrusion extending perpendicularly to the flange inner end, the inner housing being hollow;
A flange which is seated on the latching jaw; an extension piece which extends upwardly in the flange; and a locking protrusion which is formed in an annular shape on an upper portion of the extension piece, and which is disposed inside the outer housing, housing;
A ring-shaped bracket that is seated on the latching jaw, and a reflector case which is formed by the inside of the bracket and whose upper and lower ends are opened;
A reflector accommodated in the reflector case, having a reflector formed on an inner surface thereof, an upper end and a lower end opened, and a cover at the lower end;
A diffusion cover mounted on the PCB and uniformly diffusing light emitted from the LED, and a light emitting diode (LED) mounted on the bottom surface of the reflector, And an LED module including a heat sink mounted closely to the heat sink and having a heat radiating fin for radiating heat generated from the LED. The method according to claim 1,
And a fixing piece which is formed to face the inner side surface of the protrusion of the outer housing and has an elastic force for pressing and supporting the outer surface of the latching jaw of the inner housing. The method according to claim 1,
And a pressing part mounted on a protrusion of the outer housing and having an elastic force for fixing the outer housing to a ceiling panel in which the embedding groove is formed. The method according to claim 1,
In order to adjust the irradiation angle of the LED light
And the body of the reflector case is fixed to the fastening plate so as to be rotatable within an arbitrary angle, wherein the fastening plate is extended to face the bracket of the reflector case. The method according to claim 1,
A plurality of protrusions are formed on the outer periphery of a cylindrical supporter supporting the lower end of the reflector and a wing-type engaging jaw is formed opposite to the inner side surface of the body of the reflector case so that the incision portion is opposed to the protrusion jaw Accordingly, when the protruding jaw of the reflector is coupled to the reflector case so as to pass through the cutout and rotated at an arbitrary angle in the clockwise or counterclockwise direction, the protruding jaw can be prevented from being caught by the wing- Features down light type LED lighting. The method according to claim 1,
The heat sink
A tube having a bottom surface closed and an inside being hollow,
A radiating fin formed at an outer periphery of the tube at an equal interval in a radial direction,
And an auxiliary radiating fin formed at equal intervals while maintaining a right angle to the radiating fin,
Wherein the heat radiating fin is formed in a C-shape so that a fixing plate for covering the LED module or a fixing member for fixing the body of the reflector case to the heat sink can be fixed. LED lights.

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