KR101564451B1 - LED lighting device with pollution prevention - Google Patents

Abstract

The present invention relates to an LED lighting lamp having an anti-fouling function wherein the invention has an anti-fouling function such as water-repellent, oil-repellent and anti-vibration functions. The invention comprises: a lighting lamp enclosure constituting an outer appearance of a lighting lamp and having a heat dissipation function; a light emitting unit installed inside the lighting lamp enclosure and mounted with a plurality of LED elements as a light-emitting means; and a transparent cover disposed at a front of the light emitting unit and coupled to the lighting lamp enclosure to be sealed wherein the light emitting unit includes: a front surface reflector installed on a surface mounted with the LED elements; a side surface reflector installed on a side surface mounted with the LED elements in a shape extended toward a front portion wherein the front surface reflector and the side surface reflector further includes an anti-fouling film dried and formed in a room temperature. The anti-fouling film includes: alkoxide or silicon alkoxide hydrolyzate, a silane compound including a fluoroalkyl silicone, an acid and water wherein the anti-fouling film comprises: 5 wt% of alkoxide or silicon alkoxide hydrolyzate; 0.03 wt% of a silane compound including a fluoroalkyl silicone; 89.97 wt% of an acid; and 5 wt% of water. Accordingly, there is an effect of an anti-fouling function such as water-repellent, oil-repellent, anti-vibration functions and relatively high scratch resistance and durability are shown and therefore, it is possible to maintain a long-term anti-fouling capability. Further, there is an effect of reducing resources and costs required for cleaning an LED lighting lamp in order to maintain an efficiency of an LED lighting lamp through the anti-fouling function.

Description

TECHNICAL FIELD [0001] The present invention relates to an LED lighting device having an anti-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an indoor / outdoor light fixture that is fixedly installed for a long time, and more particularly, to an LED light fixture having an anti-fouling function such as water repellency,

In general, a light emitting diode called a light emitting diode (LED) is a junction diode of an intermetallic compound semiconductor. The light emitting diode produces a small number of injected carriers (electrons or holes) by using a semiconductor pn junction structure, Light-emitting element that emits light by recombination.

Such LEDs are applied in various industrial fields, and they are widely used in the field of luminaire.

In the case of the luminaire, the LED has a semi-permanent life span and is very environmentally friendly due to its very low power consumption, replacing traditional light emitting means (lamps) such as fluorescent lamps, incandescent lamps, sodium lamps and mercury lamps.

 In the case of a lighting fixture installed for a long time indoors or outdoors, as shown in the figure showing the contamination example of the illuminating device in FIG. 1, since the fixture is installed for a long time indoors or outdoors, contamination due to inflow of insects, Pollution due to volatile organic compounds and the like is occurring.

Prior Art Application No. 10-2010-0128348 " LED light fixture capable of preventing entry of moisture, insects and dust " shows that the fixation force is excellent in order to solve the contamination problem caused by insects, And it is also possible to rotate 360 degrees so that it is free from installation restrictions and can prevent damages due to moisture, insects and dust.

In the above-mentioned prior art, an LED lighting device capable of preventing the inflow of moisture, insects, and dust has a plate shape, a heat sink provided with a groove having openings on both sides of the opposing long sides, A heat dissipation cover that is fitted to both opposite side surfaces of the heat dissipation plate and covers a side surface of the heat dissipation plate; An LED package that is seated in a groove on an upper surface of the heat sink; And a frame having a bottom portion disposed parallel to one side surface of the heat sink and first and second vertical portions bent in a vertical direction from the bottom portion and coupled to both sides of the heat radiation cover, .

Although the contamination due to the inflow of insects is largely blocked by the improvement of the design of the illumination device itself as in the above-mentioned conventional art, dust or volatile organic compounds adhere to the transparent cover of the illumination device due to rain or wind, Contamination of the same contaminants adhered to the clear cover is more contaminated than contamination due to inflow of insects, but there is no solution in conventional lighting fixtures.

In particular, the street lamps installed on the roadside are more severely contaminated with volatile organic compounds. As shown in FIG. 1, when the transparent cover is contaminated by dust or the like, the efficiency of the lighting apparatus is reduced by 50% Resulting in a problem that it does not play a sufficient role as an illumination lamp apparatus.

Due to these problems, the facility management or related departments that manage lighting fixtures such as street lights and indoor lighting of large facilities regularly clean the lighting fixtures with considerable manpower and cost.

Especially, compared to other facilities, the lighting fixtures are installed at a relatively high position, which makes it difficult to clean. Therefore, equipment such as a lift car and a lot of manpower and time must be supplied for the cleaning. Manpower is wasting.

Therefore, in order to reduce the maintenance cost of the lighting apparatus and the waste of manpower, the lighting apparatus itself is provided with an LED having an anti-fouling function such as water repellency, oil repellency, A lighting apparatus is urgently required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an LED light fixture having an anti-fouling function such as water-repellent, oil-repellent and dustproof to solve the problems of the prior art.

It is also an object of the present invention to provide an LED light fixture having an antifouling film having a relatively high abrasion resistance and durability.

Further, it is an object of the present invention to provide an LED light fixture which reduces manpower and cost for maintaining the efficiency of an LED light fixture through an antifouling function.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

In order to accomplish the object of the present invention, the present invention provides a lighting fixture having a heat dissipating function, a light emitting unit mounted in the lighting fixture and having a plurality of LED elements mounted as light emitting means, And a transparent cover which is disposed on a front surface of the light emitting portion and which is sealed by being coupled with the lamp housing,

Wherein the light emitting unit includes a front reflector provided on a surface on which the LED element is mounted and a side reflector provided on a side surface of the surface on which the LED element is mounted, the front reflector and the side reflector, And an antifouling film formed by drying,

Wherein the antifouling film comprises an alkoxide or a silicon alkoxide hydrolyzate, a silicon fluoroalkyl group-containing silane compound, an acid and water, wherein the alkoxide or the silicon alkoxide hydrolyzate is 5% by weight, the silicon fluoroalkyl group- 0.03 wt%, the acid is 89.97 wt%, and the water is 5 wt%.

The LED illumination device according to the present invention has an effect of providing an anti-fouling function such as water repellency, oil leakage and dust prevention through the technical features as described above.

In addition, since the abrasion resistance and durability are relatively high, the antifouling function can be maintained for a long time.

Furthermore, it has the effect of saving manpower and cost for cleaning the LED light fixture to maintain the efficiency of the LED lighting fixture through the antifouling function.

That is, as the luminance is maintained constant, the light efficiency is relatively high.

Other advantages of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a view showing an example of contamination of an illumination lamp apparatus,
2 is a view for explaining an LED illumination lamp having an anti-fouling function according to the present invention,
3 is a view showing an example of an LED illumination lamp having an anti-fouling function according to the present invention,
4 is a view showing an example of an LED illumination lamp having an anti-fouling function according to the present invention,
5 is a view showing an example of an LED illumination lamp having an anti-fouling function according to the present invention,
6 is a diagram showing an example of an LED illumination lamp having an anti-fouling function according to the present invention,
7 is a view showing an example of an LED illumination lamp having an anti-fouling function according to the present invention,
8 is a diagram showing an example of an LED illumination lamp having an anti-fouling function according to the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It should also be understood that the position or arrangement of individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

The present invention is characterized in that an antifouling film having water-repellent, oil-repellent and dust-proof functions is formed on various types of LED illumination lamp apparatuses installed outdoors or outdoors as shown in FIG. 2 for explaining an LED illumination apparatus having an antifouling function according to the present invention The technical feature is to prevent the illumination lamp apparatus from being contaminated by the volatile organic compound.

As shown in the drawings for explaining an LED light fixture having an antifouling function according to the present invention, a light emitting portion 20 in which a lamp housing 10, an LED element 210 are mounted, And a transparent cover (30), and has an antifouling film that has water repellent, oil-repellent, and dustproof functions by itself.

The luminaire enclosure 10 is preferably made of a metal material, and is preferably made of a material having high corrosion resistance such as aluminum or stainless and a high thermal conductivity, and has a space in which the light emitting portion 20 is installed.

The luminaire enclosure 10 is formed of various types and parts of a conventional LED light fixture such as a bracket for fixing a heat radiating fin and a heat sink for smooth heat radiation, and is not limited to the luminaire enclosure of any specific type.

A circuit for driving (emitting light) the LED element 210 and an electronic component which is mounted on the light emitting unit 20 as an LED element 210 as a light emitting means and includes an external AC power source as a DC power source And a DC power supply circuit such as an SMPS for converting and supplying the DC power.

The light emitting unit 20 corresponds to a light emitting unit added to a light emitting unit including an LED device 210 in a conventional LED light unit, and is not limited to a light emitting unit including a specific circuit or an electronic component.

The transparent cover 30 protects the light emitting part 20 provided in the housing 10 by means of sealing the housing 10 while transmitting the light emitted from the light emitting part 20.

Such a transparent cover 30 corresponds to a cover means added in a conventional LED light fixture, and is not limited to a transparent cover of any specified form or structure.

2, the antifouling film 30-cf, 30-cb, 220-c, and 230-c having the water repellent, oil-repellent, and dustproof functions .

The antifouling film is formed to a thickness of 20 nm to 150 nm in order to form a strong film, and is composed of 1 to 6 wt% of a silicon alkoxide or silicon alkoxide hydrolyzate, 0.001 to 0.03 wt% of a fluoroalkyl group-containing silane compound, 1 specified concentration and 0 to 5% by weight of water is applied to the transparent cover 30 or the like and then dried at room temperature.

At this time, the antifouling composition forming the antifouling film preferably contains the acid and the water so that the weight ratio (acid / water) is 0.02 or more.

2, the antifouling films 30-cf and 30-cb can be formed on the outer side surface, the inner side surface, or both side surfaces of the transparent cover 30.

The antifouling film prevents the transparent cover 30 from being easily contaminated due to dust, volatile organic compounds or the like.

2, when the light emitting unit 20 includes a front reflector 220 mounted on the surface of the LED, the antifouling film 220- c).

In this case, the front reflector 220 is prevented from being contaminated and the reflection efficiency can be maintained continuously.

Hereinafter, the antifouling film according to the LED illumination lamp apparatus having the antifouling function of the present invention as described above will be described in detail.

The antifouling film according to the present invention is obtained by dissolving a silicon alkoxide, a fluoroalkyl group-containing silane compound, and an acid in a solvent, which comprises 1 to 6% by weight of a silicon alkoxide or silicon alkoxide hydrolyzate and 0.001 to 10% by weight of a fluoroalkyl group- Is formed on the transparent cover (30) or the front reflector (220) or the side reflector (230) through application / spontaneous drying, containing 0.03% by weight of water, 0.01 to 1% of the specified concentration of acid and 0 to 5%

In the present invention, the silicon alkoxide used in the antifouling layer may be tetramethoxysilane, tetraethoxysilane, tetrapropoxysilane, tetrabutoxysilane, or the like.

These may be used singly or in combination of a plurality of materials.

As the kind of the acid catalyst in the present invention, volatile acids such as hydrochloric acid, fluoric acid, nitric acid and acetic acid are preferable so that volatilization does not remain at the time of drying at room temperature. Among them, hydrochloric acid has high volatility and the appearance of the obtained water- And exhibit high durability, and are relatively safe in handling.

Examples of the solvent include hydrocarbons such as hexane, toluene and cyclohexane; halogenated hydrocarbons such as methyl chloride, carbon tetrachloride and trichlorethylene; ketones such as acetone and methyl ethyl ketone; Nitrogen-containing compounds such as diethylamine, and organic solvents such as alcohols and esters such as ethyl acetate.

In addition to the silicon alkoxide, the fluoroalkyl group-containing silane compound and the acid, a small amount of methyltrialkoxysilane such as methyltrimethoxysilane, methyltriethoxysilane, methyltripropoxysilane, methyltributoxy The silane may be contained in an amount of 50% by weight or less of the silicon alkoxide content in terms of silica.

Therefore, the antifouling film according to the present invention is formed by applying a hydrolysis reaction between a silicon alkoxide and water using an acid as a catalyst after application, and forming silanol groups (-Si-OH) Followed by dehydration condensation reaction to form a siloxane bond (-Si-O-Si-).

At this time, since the silicon alkoxide of the antifouling composition suppresses the dehydration condensation reaction and remains completely in the form of a monomer, and during the coating / drying at room temperature, hydrolysis reaction and dehydration condensation reaction are rapidly caused to form a siloxane bond, Can be formed.

The antifouling film of the present invention can maintain the concentration of the acid catalyst in the antifouling composition at a specified concentration of 0.003 to 3, preferably 0.01 to 1 standard concentration, so that the hydrolysis reaction of the remaining alkoxyl group and the dehydration condensation reaction are difficult to occur before application, Immediately after application, these reactions proceed rapidly.

As described above, the LED illumination device having an anti-fouling function according to the present invention can be realized by an illumination device of various shapes and structures as shown in the drawings of an example of an LED illumination device having an anti- And the LED illumination lamp apparatus as shown in the above figures has a technical feature that has an anti-fouling performance in itself, and particularly exhibits a strong performance against contamination of volatile organic compounds.

Accordingly, the LED illumination device according to the present invention has the advantage that the luminance can be maintained at a constant level and the light efficiency is relatively high.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And such variations and modifications are intended to fall within the scope of the appended claims.

10: Luminaire enclosure
20:
30: Clear cover
210: LED element
220: Front reflector
230: side reflector

Claims (1)

And a transparent cover which is disposed in the front surface of the light emitting portion and which is sealed by being coupled with the lamp housing, the light emitting portion being mounted in the lamp housing and having a plurality of LED elements as light emitting means, In the LED light fixture,
Wherein the light emitting unit includes a front reflector provided on a surface on which the LED element is mounted and a side reflector provided on a side surface of the surface on which the LED element is mounted, the front reflector and the side reflector being arranged at a room temperature And an antifouling film formed by drying,
Wherein the antifouling film comprises an alkoxide or a silicon alkoxide hydrolyzate, a silicon fluoroalkyl group-containing silane compound, an acid and water, wherein the alkoxide or the silicon alkoxide hydrolyzate is 5% by weight, the silicon fluoroalkyl group- 0.03% by weight, the acid is 89.97% by weight, and the water is 5% by weight.

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