KR101822177B1 - LED lighting device having a moisture proof function and easy replacement of ad image - Google Patents

LED lighting device having a moisture proof function and easy replacement of ad image Download PDF

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Publication number
KR101822177B1
KR101822177B1 KR1020150138358A KR20150138358A KR101822177B1 KR 101822177 B1 KR101822177 B1 KR 101822177B1 KR 1020150138358 A KR1020150138358 A KR 1020150138358A KR 20150138358 A KR20150138358 A KR 20150138358A KR 101822177 B1 KR101822177 B1 KR 101822177B1
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KR
South Korea
Prior art keywords
light
frame
guide plate
light guide
plate
Prior art date
Application number
KR1020150138358A
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Korean (ko)
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KR20170039782A (en
Inventor
박일연
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박일연
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Priority to KR1020150138358A priority Critical patent/KR101822177B1/en
Publication of KR20170039782A publication Critical patent/KR20170039782A/en
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Publication of KR101822177B1 publication Critical patent/KR101822177B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/04—Resilient mountings, e.g. shock absorbers 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The present invention relates to an LED lighting apparatus having a function of easily replacing an advertisement image and having a moisture-proof function, and more particularly, to a light guide plate for printing a dot pattern inside a frame, A light diffusing plate for diffusing light emitted from the light guide plate is formed on the lower side of the light guide plate and an LED module for emitting light is provided on a side surface of the light guide plate, The present invention relates to an LED lighting apparatus having a diffusion-plate illuminating effect by a light generated from an LED module, an advertisement image in which an advertisement image and a character are projected are easily replaced, and a moisture-proof function is provided.
The present invention relates to a frame (10) having a rim (12) and a heat dissipating plate (14) extended above the rim (12); A fastening ring 20 detachably coupled to the periphery of the rim 12 of the frame 10; A diffusion plate (30) placed on the inner side of the fastening ring (20) fastened to the rim (12) of the frame (10) and diffusing light; A light guide plate 40 mounted on the diffusion plate 30 and printed on one side so as to protrude a dot pattern so as to convert light of a circular light source into light of a planar light source; A reflective sheet (50) placed on the light guide plate (40) and reflecting light; An LED module 60 installed at the periphery of the heat sink 14 of the frame 10 to emit light and a lid 70 coupled to the upper portion of the frame 10 while covering the reflective sheet 50,
An advertising image or characters are printed on one side of the diffuser plate 30 or the light guide plate 40. The diffuser plate 30 and the light guide plate 40 are pressed on the back side of the reflection sheet 50 by a lid 70, And an adhesive member 52 made of an elastic material for adhering the reflective sheet 50 to the upper end of the clamping ring 20 is attached to the upper surface of the clamping ring 20.

Description

TECHNICAL FIELD [0001] The present invention relates to an LED lighting device having a moisture proof function and an easy image replacement function,

The present invention relates to an LED lighting apparatus having a function of easily replacing an advertisement image and having a moisture-proof function, and more particularly, to a light guide plate for printing a dot pattern inside a frame, A light diffusing plate for diffusing light emitted from the light guide plate is formed on the lower side of the light guide plate and an LED module for emitting light is provided on a side surface of the light guide plate, The present invention relates to an LED lighting apparatus having a diffusion-plate illuminating effect by a light generated from an LED module, an advertisement image in which an advertisement image and a character are projected are easily replaced, and a moisture-proof function is provided.

In general, a lighting apparatus is a type of lighting that is installed on a ceiling or a wall to illuminate indoor and outdoor light. In recent years, it has been regarded as a field of interior for enhancing decorative effects and aesthetics in addition to the original purpose of a lamp. Development and construction.

There are various kinds of light sources of such a lighting apparatus, and recently, the use of a lighting apparatus using a light emitting diode (LED) as a light source is increasing.

The LED is excellent in efficiency of converting electric power into light, and is more economical than the incandescent lamp or the fluorescent lamp because the light efficiency is much higher than the unit power. Also, It is used for a variety of purposes such as application to create an indoor lighting environment in a quiet atmosphere and indoor space utilization.

In addition, various types of images and characters may be printed on the light guide plate or the diffusing plate of the LED module to create a colorful interior or obtain an advertisement effect.

As shown in FIG. 1, the prior art includes a frame having a polygonal annular shape, an LED module installed along the periphery of the frame, And a cover for sealing the upper surface of the frame, wherein the light guide plate includes a light guide plate and a light guide plate, the light guide plate being disposed on the light guide plate, The image of various shapes and colors printed on the diffusing plate is made small, so that the interior of a colorful atmosphere can be created.

However, in order to change the image or characters displayed on the conventional LED lighting apparatus, it is necessary to replace the entire LED lighting apparatus or to replace the light guide plate printed with images or characters. In the case of replacing the entire LED lighting apparatus, In case of replacing only the light guide plate, there is a problem that the LED lighting device is detached from the ceiling or the wall, replaced with a new light guide plate, and then reassembled to be installed on a ceiling or a wall.

In addition, when the conventional LED lighting apparatus is installed at a high humidity, the inside of the LED lighting apparatus is humid, so that the components are easily corroded and the LED lighting apparatus is broken.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a light guiding plate, in which a dot pattern is printed inside a frame to convert light of a light source into light of a surface light source type, An LED module for forming a diffusion plate for diffusing light and emitting light to the side of the light guide plate is installed, and an advertisement image or character is printed on the light guide plate or the diffusion plate, An object of the present invention is to provide an LED lighting device having a moisture-proof function, which facilitates the replacement of an advertisement image in which an advertisement image or a character is projected while displaying a side-emission illumination effect.

Further, the fastening ring is fixed to the periphery of the rim of the frame, the rim is fixed to the ceiling or the wall, the fastening ring is detachably attached to the rim, and the light guide plate and the diffuser are positioned inside the fastening ring, It is possible to easily replace the advertising image that can replace the light guide plate and the diffusion plate printed with images or characters only by separating the tightening ring from the rim without detaching the entire LED lighting apparatus, The purpose is to provide.

In addition, a cover is formed on the upper part of the frame, and a reflective sheet for reflecting light is formed between the cover and the light guide plate. An elastic contact member for pressing the light guide plate, the diffusion plate, An LED lighting apparatus having an easy-to-replace ad image and a moisture-proof function for preventing the components from being easily corroded and broken due to humidity inside the LED lighting apparatus by incorporating a desiccant in the inside of the close- The purpose is to provide.

The present invention relates to a frame (10) having a rim (12) and a heat dissipating plate (14) extended above the rim (12);

A fastening ring 20 detachably coupled to the periphery of the rim 12 of the frame 10;

A diffusion plate (30) placed on the inner side of the fastening ring (20) fastened to the rim (12) of the frame (10) and diffusing light;

A light guide plate 40 mounted on the diffusion plate 30 and printed on one side so as to protrude a dot pattern so as to convert light of a circular light source into light of a planar light source;

A reflective sheet (50) placed on the light guide plate (40) and reflecting light;

An LED module 60 installed at the periphery of the heat sink 14 of the frame 10 to emit light,

And a lid 70 coupled to the upper portion of the frame 10 while covering the reflective sheet 50,

An advertising image or characters are printed on one side of the diffuser plate 30 or the light guide plate 40. The diffuser plate 30 and the light guide plate 40 are pressed on the back side of the reflection sheet 50 by a lid 70, And an adhesive member 52 made of an elastic material for adhering the reflective sheet 50 to the upper end of the clamping ring 20 is attached to the upper surface of the clamping ring 20.

A desiccant storage space 522 is formed in the sealing member 52 of the reflective sheet 50 and a desiccant storage space 522 is formed under the desiccant storage space 522 of the reflective sheet 50 to which the sealing member 52 is attached. And a desiccant 524 is installed in the desiccant storage space 522. The desiccant 524 may be a desiccant.

The lid 70 is further provided with a desiccant cover 72 to replace the desiccant 524.

A coupling groove 122 is formed in the peripheral edge of the rim 12 of the frame 10 and coupling protrusions 22 are formed on the outer rim of the coupling ring 20 to be coupled to each other.

A heat radiating protrusion 142 protrudes outward from the outer periphery of the heat sink 14 of the frame 10.

Further, the fixing member 80 is coupled to both sides of the frame 10.

Further, a ballast (90) connected to one side of the LED module (60) and adjusting a voltage supplied to the LED module (60) is further formed.

A LED lighting device having an easy-to-replace advertisement image and a moisture-proof function according to the present invention is characterized in that a dot pattern is printed inside a frame to form a light guide plate for changing the light of the light source into the light of the surface light source type, An LED module for emitting light is formed on the side of the light guide plate and an advertisement image or character is printed on the light guide plate or the diffusion plate, A light emission effect is provided on the diffuser plate, and advertisement images and characters are projected.

In addition, the LED lighting device having a moisture-proof function that facilitates replacement of an advertisement image according to the present invention is characterized in that a fastening ring is coupled to a periphery of a rim of a frame, the rim is fixed to a ceiling or a wall, And the light guide plate and the diffusion plate are positioned inside the fastening ring so that the light guide plate and the diffusion plate printed with images or characters can be separated only by separating the fastening ring from the rim without detaching the entire LED lighting apparatus Can be replaced.

According to another aspect of the present invention, there is provided an LED lighting device having a function of easily replacing an advertisement image and having a moisture-proof function, wherein a cover is formed on a top of the frame, and a reflective sheet for reflecting light is formed between the cover and the light guide plate, Which is pressed by a lid to press the light guide plate and the diffuser plate and the reflection sheet closely, and the humidity-proofing agent is embedded in the inside of the tightening member, moisture is generated inside the LED lighting apparatus, I have the effect of preventing things.

1 is a perspective view of a lighting apparatus using a conventional light guide plate.
FIG. 2 is a perspective view of an LED lighting device having an easy-to-replace advertisement image and a moisture-proof function according to the present invention. FIG.
FIG. 3 is an exploded perspective view of an LED lighting device having an easy-to-replace advertisement image and a moisture-proof function according to the present invention. FIG.
FIG. 4 is a cross-sectional view of an LED lighting device having an easy to replace advertisement image and a moisture-proof function according to the present invention. FIG.
5 is a view showing a state in which a fastening ring of an LED lighting device having a moisture-proof function is easily replaced with an advertisement image according to the present invention.
6 is a view showing a state in which a fastening ring is separated from a frame of an LED lighting device having an easy-to-replace advertisement image and a moisture-proof function according to the present invention.
FIG. 7 is a view showing a state in which a light guide plate and a diffusion plate are separated from a frame of an LED lighting apparatus having an easy-to-replace advertising image and a moisture-proof function according to the present invention.

An embodiment of an LED lighting apparatus having an easy-to-replace advertisement image and a moisture-proof function according to the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a perspective view of an LED lighting apparatus having an easy-to-replace advertisement function and a moisture-proof function according to an embodiment of the present invention. FIG. 3 is a perspective view of a LED lighting apparatus 4 is a cross-sectional view of an LED lighting device having an easy-to-replace and moisture-proof function for replacing an advertisement image according to an embodiment of the present invention. FIG. 5 is a sectional view of an LED lighting device having a moisture- 6 is a view showing a state in which a fastening ring is separated from a frame of an LED lighting apparatus having a moisture-proof function, which facilitates replacement of an advertisement image according to the present invention, and Fig. 6 7 shows a state in which the light guide plate and the diffusion plate are separated from the frame of the LED lighting apparatus having the moisture proof function, which facilitates the replacement of the advertisement image according to the present invention It is a view.

The LED lighting device according to the present invention has a frame 10 having a frame 12 and a heat radiating plate 14 extended on the frame 12, A fastening ring 20 detachably coupled to the periphery of the rim 12 of the frame 10; A diffusion plate (30) placed on the inner side of the fastening ring (20) fastened to the rim (12) of the frame (10) and diffusing light; A light guide plate 40 mounted on the diffusion plate 30 and printed on one side so as to protrude a dot pattern so as to convert light of a circular light source into light of a planar light source; A reflective sheet (50) placed on the light guide plate (40) and reflecting light; An LED module 60 installed at the periphery of the heat sink 14 of the frame 10 to emit light and a lid 70 coupled to the upper portion of the frame 10 while covering the reflective sheet 50,

An advertising image or characters are printed on one side of the diffuser plate 30 or the light guide plate 40. The diffuser plate 30 and the light guide plate 40 are pressed on the back side of the reflection sheet 50 by a lid 70, And an adhesive member 52 made of an elastic material for adhering the reflective sheet 50 to the upper end of the clamping ring 20 is attached.

The frame 10 is in the form of a circular ring with upper and lower openings, and is formed of a metal or hard plastic material.

A frame 12 is formed in the frame 10 and a coupling groove 122 is formed in the periphery of the frame 12 so that the coupling ring 20 can be attached and detached.

The coupling groove 122 includes a vertical coupling groove 124 and a horizontal coupling groove 126 extending horizontally from one side of the vertical coupling groove 124.

A heat dissipating plate 14 for emitting heat generated in the LED module 60 to the outside is formed at an upper portion of the rim 12 of the frame 10 and a heat dissipating function A plurality of heat dissipating protrusions 142 are protruded outward.

A pair of fixing member engaging portions 16 are formed on one side of the heat sink 14 of the frame 10 with a fixing member engaging groove 162 formed in the fixing member engaging portion 16, On the upper side of the groove 162, a pair of fixing member engaging projections 164 extend inward.

The fixing member 80 is coupled to the fixing member engaging portion 16 of the frame 10 so that the LED lighting device is fixed to the ceiling or the wall by the fixing member 80.

The fixing member 80 includes a spring portion 82 and a fixing portion 84 extending from the spring portion 82.

The spring portion 82 is inserted into the fixing member engaging groove 162 of the frame 10 so that both end portions of the spring portion 82 are fitted and fixed to the fixing member engaging protrusion 164, respectively.

The fastening ring 20 is formed in the shape of a circular ring and is detachably coupled to the inner periphery of the rim 12 of the frame 10.

A coupling protrusion 22 is formed on the outer periphery of the fastening ring 20 and is coupled to the coupling groove 122 of the frame 10.

The engaging protrusion 22 of the engaging ring 20 is inserted into the vertical engaging groove 124 of the engaging groove 122 when the engaging ring 20 is engaged with the inner peripheral edge of the frame 10, When the fastening ring 20 is separated from the inner peripheral edge of the frame 10, the engaging projection 22 is engaged with the horizontal engaging recess 126 of the engaging recess 122, The ring 20 is rotated in the opposite direction so that the engaging projection 22 is moved from the horizontal engaging groove 126 of the engaging recess 122 to the vertical engaging recess 124 to pull the engaging ring 20 downward.

That is, the fastening ring 20 is detachably coupled to the periphery of the rim 12 of the frame 10, and the rim 12 is fixed to a ceiling or a wall, The light guide plate 40 on which images or characters are printed can be formed only by separating the clamping ring 20 from the rim portion 12 without separating the entire LED lighting apparatus by positioning the light guide plate 40 and the diffuser plate 30 on the light guide plate 40 and the diffuser plate 30, And the diffusion plate 30 can be replaced.

The diffusion plate 30 plays a role of diffusing light scattered by the light guide plate 40 and diffusing scattering and scattering waves or particles into an object to be scattered in various directions And is mounted on the inner side of the fastening ring 20 fastened to the rim 12 of the frame 10.

The light guide plate 40 serves to change light of a linear light source into light of a surface light source type and is mounted on the upper surface of the expansion plate 30.

A dot pattern is printed on one side of the light guide plate 40 so as to protrude and reflect the light emitted through the LED module 60.

An advertising image or character is printed on one side of the diffuser plate 30 or the light guide plate 40. Thus, the advertisement image and characters are projected onto the diffusion plate 30 by the light emitted from the LED module 60.

The reflective sheet 50 is mounted on the upper portion of the light guide plate 40 to reflect the light emitted from the LED module 60 in the direction of the light exit surface of the light guide plate 40 to efficiently utilize the light.

The rear surface of the reflective sheet 50 is provided with an elastic contact member 52 for pressing the diffusion plate 30, the light guide plate 40 and the reflective sheet 50 against the upper end of the clamping ring 20 by a cover 70 Is attached.

The contact member 52 of the reflection sheet 50 is in the form of a circular ring, and is preferably formed of 1 to 9 pieces.

A desiccant storage space 522 is formed in the sealing member 52 of the reflective sheet 50 and a desiccant 524 is embedded in the desiccant storage space 522 to cool moisture inside the LED illuminating device, To prevent them from easily corroding and failing.

A plurality of desiccant holes 54 are formed in the reflective sheet 50 so that the desiccant 524 can easily absorb moisture generated inside the LED illuminating device. Is formed below the desiccant storage space 522 of the reflective sheet 50 to which the moisture-

The LED module 60 is installed at the periphery of the heat sink 14 of the frame 10 and emits light to the side surfaces of the light guide plate 40 and the diffusion plate 30.

The LED module 60 includes a plurality of light emitting diode (LED) lamps 62 as a light source for emitting light and a printed circuit board 64 on which the LED lamps 62 are mounted at regular intervals .

The printed circuit board 64 supplies power to the LED lamp 32 and a circuit for driving the LED lamp 62 is printed.

A ballast (90) for adjusting the voltage supplied to the printed circuit board (64) is further formed on one side of the LED module (60).

The lid 70 is screwed onto the frame 10 while covering the reflective sheet 50.

The moisture barrier cover 72 is formed on the cover 70 so as to replace the moisture barrier 524 contained in the contact member 52 of the reflection sheet 50. The moisture barrier cover 72 is provided on the cover member 70, The desiccant storage space 522 in FIG.

Therefore, when the desiccant 524 is replaced, the desiccant 524 can be easily replaced only by removing the desiccant cover 72 of the lid 70 without removing the entire LED illuminating device.

A method of assembling the LED lighting apparatus having the moisture-proof function and the replacement of the advertisement image as described above will be described as follows.

3 and 4, in order to assemble the LED lighting device having the function of easily replacing the advertisement image according to the present invention and having the moisture-proof function, first, the fastening ring 20 After the engaging projection 22 of the engaging ring 20 is inserted into the vertical engaging groove 124 of the frame 10 and then the engaging ring 20 is rotated, (22) is moved and fixed to the horizontal coupling groove (126) of the frame (10).

Next, the LED module 60 is attached to the periphery of the heat sink 14 of the frame 10 to diffuse light to the side surfaces of the diffuser plate 30 and the light guide plate 40.

Thereafter, the diffusion plate 30, the light guide plate 40 and the reflection sheet 50 are sequentially placed on the fastening ring 20 fastened to the rim portion 12 of the frame 10, The desiccant 524 is inserted into the desiccant storage space 522 of the contact member 52 attached to the back surface of the desiccant 52.

Next, the lid 70 is screwed onto the frame 10 while covering the reflective sheet 50, and the desiccant cover 72 of the lid 70 is attached to the reflective sheet 50, (52).

The spring member 82 of the fixing member 80 is inserted into the fixing member engagement groove 162 of the frame 10 And at the same time both end portions of the spring portion 82 are fitted and fixed to the fixing member coupling protrusions 164 so that the LED lighting device having the moistureproof function can be easily replaced with the advertisement image according to the present invention. .

5, when the diffusion plate 30 and the light guide plate 40 of the LED lighting device having the moistureproof function are replaced easily, it is necessary to rotate the fastening ring 20 The engaging projections 22 of the engaging rings 20 are moved from the horizontal engaging grooves 126 of the frame 10 to the vertical engaging grooves 124 so that the fastening rings 20 And the diffusion plate 30 and the light guide plate 40, which are placed on the fastening ring 20, fall downward.

Thereafter, the diffuser plate 30 or the light guide plate 40 is replaced with a new diffuser plate 30 or the light guide plate 40, and then the diffuser plate 30 and the fastening ring 20, on which the light guide plate 40 is placed, The engaging projection 22 of the engaging ring 20 is inserted into the vertical engaging groove 124 of the frame 10 and then the engaging projection 22 is rotated by reversely rotating the engaging ring 20, The locking ring 20 is fixed to the frame 10 by moving the locking ring 20 to the horizontal coupling groove 126 of the frame 10.

As described above, the present invention is only one embodiment for implementing an LED illumination device having a function of easily replacing an advertisement image and having a moisture-proof function, and the present invention is not limited to the above embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. .

10: Frame 12:
14: heat sink 16: fixing member coupling portion
20: fastening ring 22: engaging projection
30: diffusion plate 40: light guide plate
50: reflective sheet 52:
54: Desiccant hole 60: LED module
70: cover 72: desiccant cover
80: fixing member 90: ballast
122: coupling groove 522: desiccant storage space
524: Desiccant

Claims (5)

A frame 10 on which a rim 12 is formed and on which a heat sink 14 is extended above the rim 12;
A fastening ring 20 detachably coupled to the periphery of the rim 12 of the frame 10;
A diffusion plate (30) placed on the inner side of the fastening ring (20) fastened to the rim (12) of the frame (10) and diffusing light;
A light guide plate 40 mounted on the diffusion plate 30 and printed on one side so as to protrude a dot pattern so as to convert light of a circular light source into light of a planar light source;
A reflective sheet (50) placed on the light guide plate (40) and reflecting light;
An LED module 60 installed at the periphery of the heat sink 14 of the frame 10 to emit light,
And a lid 70 coupled to the upper portion of the frame 10 while covering the reflective sheet 50,
An advertising image or characters are printed on one side of the diffuser plate 30 or the light guide plate 40. The diffuser plate 30 and the light guide plate 40 are pressed on the back side of the reflection sheet 50 by a lid 70, And an elastic contact member 52 for adhering the reflecting sheet 50 to the upper end of the clamping ring 20 is attached,
A coupling groove 122 is formed in a peripheral edge of a rim 12 of the frame 10 and a coupling protrusion 22 is formed on an outer periphery of the coupling ring 20,
The engaging projection 22 of the engaging ring 20 is inserted into the vertical engaging groove 124 of the engaging groove 122 when the engaging ring 20 is engaged with the inner peripheral edge of the frame 10, When the fastening ring 20 is separated from the inner peripheral edge of the frame 10, the fastening ring 20 is rotated so that the fastening projections 22 are moved to the horizontal engagement grooves 126 of the fastening grooves 122, The ring 20 is reversely rotated so that the engaging projection 22 is moved from the horizontal engaging groove 126 of the engaging groove 122 to the vertical engaging groove 124 so that the diffuser plate 30 and the light- And the diffusion plate (30) and the light guide plate (40) are replaced with each other. The method according to claim 1,
A desiccant storage space 522 is formed in the sealing member 52 of the reflective sheet 50 and a desiccant agent hole 522 is formed under the desiccant storage space 522 of the reflective sheet 50 to which the sealing member 52 is attached 54) is formed in the moisture absorbing material storage space (522), and a desiccant (524) is embedded in the moisture absorbing material storage space (522). The method according to claim 1,
Wherein the lid (70) is formed with a desiccant cover (72) so as to replace the desiccant (524). delete The method according to claim 1,
And a fixing member (80) is coupled to both sides of the frame (10).
KR1020150138358A 2015-10-01 2015-10-01 LED lighting device having a moisture proof function and easy replacement of ad image KR101822177B1 (en)

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KR1020150138358A KR101822177B1 (en) 2015-10-01 2015-10-01 LED lighting device having a moisture proof function and easy replacement of ad image

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KR1020150138358A KR101822177B1 (en) 2015-10-01 2015-10-01 LED lighting device having a moisture proof function and easy replacement of ad image

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KR20170039782A KR20170039782A (en) 2017-04-12
KR101822177B1 true KR101822177B1 (en) 2018-01-26

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