KR101430731B1 - Led lighting apparatus - Google Patents

Abstract

According to the present invention, a plastic heat dissipator; An annular support portion coupled to the plastic heat dissipation member along the lower periphery thereof to support the plastic heat dissipation member; An LED module coupled to the lower portion of the plastic heat dissipator to illuminate the LED light; And a cylindrical housing coupled to a lower portion of the LED module and through which light emitted from the LED module passes.

Description

LED LIGHTING APPARATUS [0001]

The present invention relates to an LED illumination device.

In order to efficiently heat sinks when heat is dissipated from the heat source in a lighting device, the heat source and the heat sink are communicated and assembled with each other in a generally thermally conductive manner. Such communication may be by direct contact or by means of an intervening separator, for example by a layer of material, the material itself being an electrical conductor and an electrical separator.

Heatsinks are used in many electrical or electronic fields (E & F) these days and can be made of a variety of materials. On the other hand, conventional heat sinks are made of metal, but nowadays the E & F industry has found a way to use heat-conductive plastic materials to form heat sinks. Many of these materials are electrically non-conductive and require no separate separator.

In the lighting industry, which tends to increase the use of more powerful heat societies with minimized heat sources, there is a continuing need for solutions that perform better in various aspects. Efficiency, weight, size, safety, environmental aspects, byproduct regeneration, automation and flexibility all play a role in heat dissipation.

With the introduction of high current, high power LED lighting, efficiency in heat dissipation has become even more important. Also, the power supply ballast may generate a high "strike" voltage when the LED fails to dissipate heat. In this field, a metal heat sink exhibiting high thermal conductivity is used.

Such metal heat sinks are generally attached to heat sources of LED lighting with intervening separators, as described above, which typically use ceramics, plastic and other materials with high dielectric strength.

A related art is Korean Patent Laid-Open Publication No. 10-2010-0126415 (published on Dec. 12, 2010, a heat sink of a thermally conductive plastic material).

According to an embodiment of the present invention, there is provided an LED lighting device capable of realizing electrical insulation and preventing leakage and short-circuiting accidents by replacing an existing aluminum heat sink by using an environmentally-friendly heat-dissipating plastic, .

According to an embodiment of the present invention, a plastic heat dissipator; An annular support portion coupled to the plastic heat dissipation member along the lower periphery thereof to support the plastic heat dissipation member; An LED module coupled to the lower portion of the plastic heat dissipator to illuminate the LED light; And a cylindrical housing coupled to a lower portion of the LED module and through which light emitted from the LED module passes.

The plastic heat exchanger includes an insertion groove formed along the lower circumference, and the insertion groove can be inserted into the annular support portion.

And a fixing unit coupled to the support unit and fixing the support unit to the fixture.

The fixing portion may be formed of a pair of facing torsion springs.

The torsion spring may include: an elastic part coupled to the support part to provide an elastic force by a torsion; An extension extending from the elastic portion; And a bent portion bent downward from the extended portion.

The housing includes an edge portion formed along a lower outer periphery, and a fitting is inserted between the edge portion and the fixing portion, thereby preventing the housing from rising due to the elasticity of the torsion spring.

The support portion may include a plurality of engagement holes formed along the circumference, and the plastic heat dissipator may include engagement portions corresponding to the plurality of engagement holes along the circumference.

The LED module and the plastic heat sink may be coupled by screwing.

The plastic heat sink may be made of biodegradable plastic.

The biodegradable plastic may be composed of 30-65% of poly-lactic acid, 30-50% of semi-graphene, and 5-20% of aluminum oxide.

The support portion may be formed of a metal.

The metal may be aluminum.

According to the embodiments of the present invention, it is possible to replace the conventional aluminum heat sink by using the environmentally-friendly heat-dissipating plastic using the LED illumination device, to realize the electrical insulation and to prevent the leakage and leakage accident, We can solve environmental problems.

1 is a perspective view illustrating a plastic heat sink of an LED illumination device according to an embodiment of the present invention;
2 is a perspective view illustrating a support portion of an LED illumination device according to an embodiment of the present invention.
3 is a perspective view illustrating a combination of a plastic heat sink, a supporting portion, a fixing portion, and an LED module of an LED illumination device according to an embodiment of the present invention.
4 is an exploded view of an LED illumination device according to an embodiment of the present invention;
FIG. 5 is a front view showing an LED lighting device according to an embodiment of the present invention installed on an installation. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an embodiment of an LED illumination device according to the present invention will be described in detail with reference to the accompanying drawings. Referring to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, A description thereof will be omitted.

FIG. 1 is a perspective view showing a plastic heat sink of an LED lighting device according to an embodiment of the present invention, FIG. 2 is a perspective view showing a supporting part of the LED lighting device, FIG. 3 is a view showing a combination of a plastic heat sink, Fig. 4 is an exploded view of the LED illumination device, and Fig. 5 is a front view showing that the LED illumination device is installed on the installation.

1 to 4, an LED illumination apparatus according to an embodiment of the present invention includes a plastic heat sink 100, a support 200, an LED module 300, and a housing 400.

The present invention is characterized by being a plastic heat sink (100), not a heat sink made of a metal including aluminum or the like.

By manufacturing the heat discharging body using plastic, it is possible to overcome the disadvantage of the heavy weight of the heat discharging body made of metal such as aluminum.

The plastic heat sink 100 is relatively light in weight and reduces the risk of falling from a fixture (for example, a ceiling) when a heat sink is installed in a fixture C such as a ceiling. Further, since the weight of the heat discharging body is reduced, the strength of the spring necessary for fixing the product to the ceiling can be reduced, and the problem of sagging of the product from the ceiling can be prevented.

It is also effective in preventing safety accidents caused by spring recoil.

The plastic heat sink 100 of the LED illumination device according to an embodiment of the present invention may be made of biodegradable plastic.

Biodegradable plastics can be composed of 30-65% of Poly-Lactic Acid, 30-50% of Semi Graphene, and 5-20% of Aluminum Oxide.

By making the plastic heat sink 100 made of biodegradable plastic, electrical insulation can be realized differently from a heat sink made of a metal such as aluminum, and accidents caused by leakage and electric leakage can be prevented.

In addition, polylactic acid is a fiber extracted from corn and can be an alternative to environmental problems or energy depletion because it uses vegetable materials.

The LED lighting apparatus according to the present invention is characterized in that a support portion 200 is provided under the plastic heat sink 100 in order to prevent the heat sink itself from being broken or bent due to the limit of the plastic material that may be generated by manufacturing the heat sink through plastic .

The supporting portion 200 is formed in an annular shape so as to be coupled along the lower circumference of the plastic heat sink 100. [

At this time, the support part 200 may be formed of metal such as aluminum.

It is possible to solve the problem that the support part 200 is engaged with the lower circumference of the plastic heat sink 100 so that the heat sink itself does not break or bend due to the limit of the plastic material itself.

When the support portion 200 is formed of a metal such as aluminum, it is more advantageous to overcome the above-described problems.

At this time, the coupling between the plastic heat sink 100 and the support part 200 is caused by the coupling between the insertion groove 120 formed in the lower part of the plastic heat sink 100 and the support part 200.

The insertion grooves 120 of the plastic heat sink 100 are inserted into the holes formed in the periphery of the plastic heat sink 100 formed in the annular support portion 200 and are coupled.

A plurality of coupling holes 210 may be formed in the supporting portion 200 along the periphery of the supporting portion 200 to further secure the coupling between the plastic heat sink 100 and the supporting portion 200, The plastic heat sink 100 may have a coupling portion 110 having a hole or a groove.

The engaging hole 210 of the support part 200 and the engaging part 110 of the plastic heat sink 100 are coupled to each other by screws N or the like and inserted into the insertion recess 120 of the plastic heat sink 100 inserted into the support part 200 The coupling between the support 200 and the plastic heat sink 100 can be further strengthened.

The coupling between the support 200 and the plastic heat sink 100 becomes rigid so that the plastic heat sink 100 can be prevented from being bent or broken by the support 200. [

4 to 5, an LED illumination device according to the present invention includes an LED module 300 for illuminating LED light and an LED power source L for supplying energy to the LED module 300, The illumination irradiated from the illumination unit 300 is irradiated to the bottom through the cylindrical housing 400.

In addition, the LED illumination device according to an embodiment of the present invention further includes a fixing portion 500 for fixing the LED illumination device to the fixture C.

The fixing unit 500 includes a plastic heat sink 100 coupled to the support 200 and an LED module 300 coupled to the plastic heat sink 100, And the housing 400 coupled to the lower portion of the LED module 300 is fixed to the fixture C.

At this time, the fixing part 500 may be formed of a pair of opposing torsion springs.

The torsion spring according to the present invention may be formed of an elastic portion 510, an extension portion 520, and a bent portion 530.

That is, the torsion springs are formed to be symmetrical with respect to the support portion 200 and include an elastic portion 510 coupled to the support portion 200, an extension portion 520 extending from the elastic portion 510, And a bent portion 530 bent in a downward direction.

The elastic part 510 is fixed to the support part 200 and has elasticity to rotate in the opposite direction when twist is applied to the whole of the fixing part 500.

The extension portion 520 extends from the elastic portion 510 and the bent portion 530 is bent once again in the extension portion 520 extending from the elastic portion 510 to extend downward, The LED illumination device can be supported and fixed to the fixture C more stably.

A torsion spring is a spring with elasticity that tends to return in the opposite direction when twist in one direction is applied.

5, a pair of torsion springs are pressed against the fixture C, and the torsion spring is tilted in a direction in which a pair of torsion springs are spaced apart from each other, And an elastic force is generated in the opposite direction, that is, in a direction in which the pair of torsion springs are narrowed.

At this time, the above-described elastic force and the force exerted by the LED illumination device installed on the fixture C in the downward direction are canceled by gravity, so that the LED illumination device is fixed to the fixture C.

The housing 400 may have an edge portion 410 formed along a lower outer periphery of the housing 400 and a portion of the fixture C may be inserted between the edge portion 410 and the fixing portion 500, The interval between the pair of torsion springs is narrowed and the interval between the pair of torsion springs is narrowed so that the edge portion 410 can prevent the LED lighting device from rising.

That is, the LED illumination device is stably fixed to the fixture C by the elastic force of the pair of torsion springs and the resistance of the edge portion 410 of the housing 400.

3, the plastic heat sink 100 of the LED illumination device according to the present invention and the LED module 300 coupled to the lower portion of the plastic heat sink 100 are firmly coupled to each other by a screw (N) .

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 of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

L: Power of LED
N: Screw
C: Fixture
100: Plastic heat sink
110:
120: insertion groove
200:
210: coupling ball
300: LED module
400: housing
410:
500:
510:
520: Extension
530: Bend

Claims (12)

Plastic heat sink;
An annular support portion penetrating through the center of the plastic heat dissipation body and coupled to the plastic heat dissipation body along the lower periphery thereof to prevent warping of the plastic heat dissipation body;
An LED module connected to the lower part of the plastic heat radiator and irradiating the LED light;
And a cylindrical housing coupled to a lower portion of the LED module and through which light emitted from the LED module passes,
Wherein the plastic heat discharger includes an insertion groove formed along the lower circumference,
Wherein the insertion groove is inserted and coupled to the annular support portion.
delete The method according to claim 1,
And a fixing unit coupled to the support unit and fixing the support unit to the fixture. The method of claim 3,
Wherein the fixing portion is formed by a pair of opposing torsion springs.
5. The method of claim 4,
The torsion spring,
An elastic part coupled to the support part to provide an elastic force by a torsion;
An extension extending from the elastic portion;
And a bent portion bent downward from the extended portion.
6. The method of claim 5,
The housing includes an edge portion formed along a lower outer edge,
And an attachment is inserted between the edge portion and the fixing portion to prevent the housing from rising due to elasticity of the torsion spring.
The method according to claim 6,
The support portion includes a plurality of engagement holes formed along the circumference,
Wherein the plastic heat discharger includes a coupling portion corresponding to the plurality of coupling holes along the circumference.
8. The method of claim 7,
Wherein the LED module and the plastic heat sink are coupled by screwing.
The method according to claim 1,
Wherein the plastic heat sink is made of biodegradable plastic.
10. The method of claim 9,
Wherein the biodegradable plastic is composed of 30-65% of poly-lactic acid, 30-50% of semi-graphene, and 5-20% of aluminum oxide. Device.
The method according to claim 1,
Wherein the support portion is formed of a metal.
12. The method of claim 11,
Wherein the metal is aluminum.

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