KR20160114760A - Lens structure for led lighting - Google Patents

Lens structure for led lighting Download PDF

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Publication number
KR20160114760A
KR20160114760A KR1020150040627A KR20150040627A KR20160114760A KR 20160114760 A KR20160114760 A KR 20160114760A KR 1020150040627 A KR1020150040627 A KR 1020150040627A KR 20150040627 A KR20150040627 A KR 20150040627A KR 20160114760 A KR20160114760 A KR 20160114760A
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KR
South Korea
Prior art keywords
circuit board
heat
frame
lens member
led
Prior art date
Application number
KR1020150040627A
Other languages
Korean (ko)
Inventor
최활
최정우
Original Assignee
(주)창조코프레이션
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)창조코프레이션 filed Critical (주)창조코프레이션
Priority to KR1020150040627A priority Critical patent/KR20160114760A/en
Publication of KR20160114760A publication Critical patent/KR20160114760A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • 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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/02—Frames
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F21Y2101/02—
    • Y02B20/34—

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The present invention relates to a lens structure for an LED light having improved structure, which allows a circuit board to be fixed and pressed against the bottom of a heat radiation frame without any fastening member such as a bolt or adhesive tape, thereby improving heat conduction performance, and which has light radiated from the LED light focused with a simple structure to prevent loss caused by scattering of the light, thereby improving intensity of illumination. The lens structure for an LED light includes: a heat radiation frame having at least one holding groove on a surface and multiple heat radiation plates formed to be separated from each other on the other surface; a circuit board made of a heat conductive material, disposed on a bottom surface of the holding groove of the heat radiation frame, and having multiple LED lamps arranged to be separated from each other on a surface; and a lens member detachably coupled to the holding groove of the heat radiation frame by the medium of a coupling unit, and having a protruding portion with downward opening, formed on a bottom surface, wherein the protruding portion is in contact with the LED lamps so that the circuit board is pressed against the heat radiation frame and light radiated from the LED lamps are collected into the opening.

Description

[0001] LENS STRUCTURE FOR LED LIGHTING [0002]

More particularly, the present invention relates to a lens structure for an LED lighting, and more particularly, to a heat-conductive circuit board which is in close contact with a heat radiation frame and a simple structure that concentrates light emitted from the LED lamp to prevent light scattering, To a lens structure for an LED illumination which is improved in structure to improve the illuminance of an LED illumination.

2. Description of the Related Art In recent years, LED devices have been spotlighted as light sources for various lighting devices. Such an LED device has advantages of less heat generation and power consumption, superior durability, and longer life than conventional light sources such as incandescent lamps and fluorescent lamps.

LED lighting does not use mercury or discharge gas like fluorescent lamps, so it does not cause environmental pollution problems.

The LED element can be used for about 100,000 hours or more when providing adequate power supply and heat dissipation means. However, all light sources decrease in light output over time. According to these standards, the lifespan of LED lights is expected to be about 40,000 to 50,000 hours, because people can not feel up to 80% of the initial brightness.

Therefore, compared to 1,500 hours for incandescent lamps and 10,000 hours for fluorescent lamps, the relative life span of LED lighting lamps is estimated to be very long.

However, the LED lighting lamps developed up to now, especially the flat lighting lamps, have been limited to the level of simply replacing conventional incandescent lamps or fluorescent lamps to function as a single light source.

In other words, the lens structure for the LED illumination has the limitation of the design to follow the existing shape of the illumination lamp despite the various layout design of the LED module and the advantage that the shape of the whole illumination lamp can be variously changed.

Therefore, the development of unit lighting with a unique shape, shape, and the like has been extensively attempted, and the development and dissemination of so-called 'system lighting lamps' capable of realizing another type of lighting lamps by connecting these unit lighting lamps is urgently required have.

Prior art relating to this is disclosed in Korean Registered Patent Publication No. 10-0961236, " LED System Lamp and Unit Lamp Used for It "(registered on May 26, 2010).

This can be realized by combining unit lightings of planar shapes that emit light by LEDs, thereby realizing various shapes of the overall shape.

On the other hand, since the conventional LDE illumination lens structure has characteristics that the LDE is sensitive to temperature and current, there is a disadvantage that the lifetime is reduced when the ambient temperature is raised and exposed to a high temperature.

Prior art for solving this problem is disclosed in Korean Registered Patent Publication No. 10-0820942 entitled " LIGHT LIGHTING LENS STRUCTURE "(registered on April 4, 2008).

A plurality of wings are formed on both sides of the heat dissipating frame in the longitudinal direction and the circuit board on which the LEDs are mounted is adhered closely to the bottom surface of the heat dissipating frame in the space of the heat dissipating frame to effectively heat the heat generated from the LEDs and the circuit board to the outside And the like.

In the conventional lens structure for LED lighting, a bolt hole is formed in the bottom surface of the heat dissipating frame and the circuit board so that the circuit board is brought into close contact with the heat dissipating frame, the bolt is fastened to the bolt hole to fix the circuit board, Is fixed to the bottom of the heat radiation frame.

However, when fixing the circuit board with the bolt fastening method, the conventional lens structure for LED lighting has a problem that it is troublesome to fasten the bolt hole of the heat radiation frame and the bolt hole of the circuit board so as to be located on the same vertical line, , There is a processing problem of machining a bolt hole.

On the other hand, in the fixing method using the double-sided tape, since the double-sided tape is placed between the heat radiation frame and the circuit board, the heat conduction performance is lowered and the heat release is not smooth.

In addition, in the case of an existing LED lamp, light is scattered without being concentrated, and loss of illumination is generated. Therefore, in an industrial field where a lamp is placed on a high ceiling, a lot of light is required due to loss of light.

Korean Registered Patent Publication No. 10-0961236 "LED illumination lamp and unit illumination lamp" (registered on May 26, 2010) Korean Registered Patent Publication No. 10-0820942 entitled "LED light" (registered on Apr. 4, 2008)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and it is an object of the present invention to improve the heat conduction performance by fixing a circuit board closely to the bottom of a heat radiating frame without a coupling member such as a bolt or an adhesive tape And an object of the present invention is to provide a lens structure for an LED illumination which is improved in structure so as to concentrate light irradiated from an LED illumination with a simple structure to prevent scattering loss of light and improve illumination.

According to an aspect of the present invention, there is provided a plasma display panel comprising: a heat dissipating frame having at least one receiving groove formed on one surface thereof and a plurality of heat dissipating plates spaced apart from each other; A circuit board mounted on a bottom surface of the receiving groove of the heat dissipating frame and having a plurality of LED lamps spaced from each other on one surface thereof and capable of conducting heat; And a heat radiating frame disposed on a lower surface of the heat radiating frame, the heat radiating frame being detachably connected to a receiving groove of the heat radiating frame, And a lens member having the protruded portion formed thereon.

The coupling means includes a locking piece formed on both sides of the lens member so as to extend outwardly from both sides of the lens member, and a fitting groove in which the end of the locking piece is fitted to both inner walls of the receiving groove.

The locking piece is formed with a cutting groove on one of the left and right sides.

The lens member is disposed inside the protrusion and has a hemispherical shape, and has a convex lens portion for preventing scattering of light emitted from the LED lamp.

The lens member has a planar structure in which the top surface is flat, and the protruding portion is formed in such a shape that the outer diameter becomes narrower toward the lower side.

The heat radiating frame further includes a support groove formed in the receiving groove to protrude from both sides of the circuit board.

First, according to the present invention, when the lens member and the heat dissipating frame are coupled to each other, the protruding portion formed on the lower side of the lens member contacts the LED lamp to press-fix the circuit board to the heat radiating frame side on the lower side. So that the heat conduction performance in which heat generated from the LED lamp is conducted to the heat radiating frame side through the conductive circuit board is advantageously improved.

Second, in the present invention, a fitting groove is formed on one surface of the heat dissipating frame, and a locking piece is formed on both sides of the lens member so as to be locked and engaged with the fitting groove, so that the lens member is easily locked to the fitting groove. And can be assembled and disassembled easily because the assembling property can be improved by being coupled to the heat dissipating frame by a simple structure joining means without a separate joining member (bolt, adhesive tape, etc.).

Third, the lens member of the present invention has a convex lens portion for preventing scattering of light irradiated from the LED lamp, thereby preventing scattering of light irradiated through the LED lamp and improving the illuminance through the concentration of light .

1 is an exploded perspective view of a lens structure for an LED illumination according to the present invention.
2 is a front view showing a structure of a heat radiating frame according to the present invention.
3 is a perspective view of the lens member of the present invention.
4 is a sectional view of the lens member of the present invention.
FIGS. 5 and 6 are views showing a process before and after a lens member, a circuit board, and a heat radiation frame of the present invention are combined. FIG.
7 is a joint state view of the present invention.
Figs. 8 and 9 show another embodiment of the lens member of the present invention. Fig.

1 to 7, the lens structure for LED illumination according to the present invention includes a heat dissipating frame 100 having a plurality of receiving grooves 110 formed on one surface thereof and spaced apart from the heat dissipating plates 120 on the other surface thereof, ; A circuit board (200) mounted in the receiving groove (110) of the heat dissipating frame (100) and having a plurality of LED lamps (210) arranged on one surface thereof; The circuit board 200 is detachably coupled to the receiving groove 110 of the heat dissipating frame 100 via a coupling means and is brought into contact with the LED lamp 210 on the lower side to closely contact the circuit board 200 with the heat dissipating frame 100 And a lens member 300 having a protruding portion 330 opened at the bottom thereof for collecting light emitted from the LED lamp 210.

Referring to FIG. 1, the heat radiating frame 100 has a plurality of receiving grooves 110 formed in a lengthwise direction and a heat sink 120 formed vertically.

More specifically, the circuit board 200 includes a plurality of LED lamps 210 spaced apart from each other at equal intervals so that the heat generated from the LED lamp 210 is conducted to the heat radiating frame 100 It is preferable to adopt a metal PCB.

Referring to FIG. 2, the receiving groove 110 is formed as a groove having an open top so that the circuit board 200 is seated. The heat radiating plate 120 is formed to have a large surface area Concave portions 120a are formed on both left and right sides.

In addition, the heat sink 120 is preferably formed so that the length gradually increases from the left and right edge portions of the heat dissipating frame 100 toward the center in the drawing.

This is because the heat generated in the LED lamp 210 is concentrated at the central portion of the central portion of the heat dissipating plate 120, and the cooling efficiency of the central portion is different from that of the peripheral portion, So that the heat radiation efficiency can be improved.

Referring to FIG. 3, the lens member 300 has a flat top surface 310, and has a structure in which a plurality of locking pieces 320 extending downward on both left and right sides of the upper surface 310 are formed.

As shown in FIG. 4, the protruding portion 330 has a structure in which the outer diameter is reduced toward the lower side, and a hollow hole 332 opened at the lower portion is formed.

The hollow hole 332 is vertically formed and formed into a circular cross-sectional structure.

The protruding portion 330 has a convex lens portion 340 formed in a hemispherical shape to prevent scattering of light emitted from the LED lamp 210.

The convex lens part 340 is formed in a hemispherical shape on the lower side to collect the light emitted from the LED lamp 210 so as to prevent scattering of the light and concentrate the upwardly focused light.

2 and 3, the fitting groove 115 is formed in the inner wall of both sides of the receiving groove 110 to receive the locking piece 320 of the lens member 300, 300 are locked in the fitting groove 115. As shown in FIG.

Here, the wiring and the power supply unit for supplying power to the circuit board 200 are well-known structures and will not be described in the drawings and the description.

5 and 6, a circuit board 200, which is a metal PCB, is mounted on a receiving groove 110 formed on one surface of a heat radiating frame 100, The lens member 300 is locked and engaged with the fitting groove 115 of the lens barrel 100.

The lens member 300 is coupled so that the both side locking pieces 320 are locked in the fitting groove 115 and the lower side covers the upper side of the LED lamp 210 disposed on one side of the circuit board 200.

The locking member 320 is inserted into the fitting groove 115 when the lens member 300 is coupled with the heat dissipating frame 100 and the protrusion 330 protruded downward as viewed in FIG. So that the adhesion between the circuit board 200 and the heat radiation frame 100 can be improved by providing a downward pressing force on the LED lamp 210 and the circuit board 200. [

That is, the lens member 300 has a function of pressing the circuit board 200 so that the circuit board 200 is brought into close contact with the bottom of the receiving groove 110 of the heat radiating frame 100 due to the coupling with the heat radiating frame 100 .

The heat generated from the LED lamp 210 has a transmission path that is conducted to the heat radiation frame 100 through the circuit board 200 and is diverted to the outside through the heat radiation plate 120, The cooling efficiency can be improved.

The heat dissipating frame 110 may further include a support groove 116 protruding into the receiving recess 110 and formed between the side fitting recesses 115 to support both side edges of the circuit board 200 do.

The fitting groove 110 has a function of preventing the left and right flow of the circuit board 200 after the circuit board 200 is seated, The locking plate 320 is coupled to the circuit board 200 and the end of the supporting plate 330 is brought into contact with the circuit board 200 to perform a function as a coupling means for applying a pressing force to the circuit board 200.

Since the lens member 300 is formed with the convex lens portion 340, it is possible to improve the illuminance by focusing the scattered light while being irradiated from the LED lamp 210, so that the height from the existing floor surface to the ceiling Which is advantageous for application to high industrial sites.

7, the lens member 300 is slidable in the longitudinal direction of the heat radiation frame 100 while being sandwiched by the fitting recesses 115, so that the length of the lens member 300 corresponding to the length of the heat radiation frame 100 It is possible to arrange a plurality of lens members 300 having a short length instead of a length in one row.

As described above, according to the present invention, as the lens member 300 is locked to the fitting groove 115 of the heat dissipating frame 100, the protrusion 330 contacts the LED lamp 210, The circuit board 200 is brought into close contact with the bottom surface of the receiving groove 110 so that the heat generated from the LED lamp 210 is applied to the conductive circuit board 200 The heat conduction performance to the heat radiating frame 100 side is improved.

In the present invention, each convex lens part 340 formed on one surface of the lens member 300 is arranged to correspond to each LED lamp 210, thereby preventing scattering of light irradiated through the LED lamp 210 So that the illuminance can be improved through the concentration of light.

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 and scope of the invention. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

8 and 9 show another embodiment of the lens member according to the present invention. The lens member 300 having the protrusion 330 and the locking piece 320 is the same in structure. However, Unlike the example, it is formed in one column or two columns.

Accordingly, it is understood that the present invention can be applied to various embodiments regardless of the shape of the lens member 300.

100: heat radiating frame 110: receiving groove
115: fitting groove 120: heat sink
120a: concave / convex portion 200: circuit board
210: LED lamp 300: lens member
310: top surface 320:
330: protrusion 332: hollow hole
340: convex lens part

Claims (5)

A heat radiating frame (100) having at least one receiving groove (110) formed on one surface thereof and a plurality of heat sinks (120) formed on the other surface so as to be spaced apart from each other;
A circuit board 200 mounted on a bottom surface of the receiving groove 110 of the heat dissipating frame 100 and having a plurality of LED lamps 210 spaced from each other on a surface thereof and capable of conducting heat;
And the LED lamp 210 is attached to the lower side of the receiving groove 110 of the heat dissipating frame 100 via a coupling means so that the circuit board 200 is closely contacted with the heat radiating frame 100 And a lens member (300) having a protruding portion (330) opened at a lower portion thereof for collecting light emitted from the LED lamp (210) at a lower portion thereof. The method according to claim 1,
The coupling means includes a locking piece 320 formed on both sides of the lens member 300 so as to extend outwardly,
Wherein a fitting groove (115) is formed in an inner wall of both sides of the receiving groove (110), and an end of the locking piece (320) is fitted into the fitting groove (115). The method according to claim 1,
Wherein the lens member (300) has a planar structure in which the upper surface (310) is flat, and the protrusion (330) is formed to have a smaller outer diameter toward the lower side. The method according to claim 1,
The lens member 300 includes a convex lens part 340 formed in a hemispherical shape within the protrusion 330 to prevent scattering of light emitted from the LED lamp 210. Lens structure. The method according to claim 1,
Wherein the heat dissipating frame (110) further comprises a support groove (116) formed in the receiving groove (110) so as to protrude from both sides of the circuit board (200).
KR1020150040627A 2015-03-24 2015-03-24 Lens structure for led lighting KR20160114760A (en)

Priority Applications (1)

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KR1020150040627A KR20160114760A (en) 2015-03-24 2015-03-24 Lens structure for led lighting

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Application Number Priority Date Filing Date Title
KR1020150040627A KR20160114760A (en) 2015-03-24 2015-03-24 Lens structure for led lighting

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402772A (en) * 2016-11-16 2017-02-15 广州市东道照明有限公司 Automotive LED strip reflector lamp
CN110388577A (en) * 2019-08-27 2019-10-29 广东恒辰光电科技有限公司 A kind of LED lamp
KR20200061006A (en) * 2018-11-23 2020-06-02 최활 LED lighting fixture
KR20210131146A (en) * 2020-04-23 2021-11-02 최활 Heat and protection structure of golf course lighting
KR20210132396A (en) * 2020-04-27 2021-11-04 최활 Lens assembling structure for led lighting apparatus
TWI805385B (en) * 2022-05-31 2023-06-11 世頂企業有限公司 LED light bar fixing structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100820942B1 (en) 2007-08-29 2008-04-11 건우조명공업 주식회사 Led lamp
KR100961236B1 (en) 2009-03-06 2010-06-03 (주)렌즈 Led system lighting and unit lighting thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100820942B1 (en) 2007-08-29 2008-04-11 건우조명공업 주식회사 Led lamp
KR100961236B1 (en) 2009-03-06 2010-06-03 (주)렌즈 Led system lighting and unit lighting thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402772A (en) * 2016-11-16 2017-02-15 广州市东道照明有限公司 Automotive LED strip reflector lamp
CN106402772B (en) * 2016-11-16 2018-11-30 广州市东道照明有限公司 Automobile-used LED strip shot-light
KR20200061006A (en) * 2018-11-23 2020-06-02 최활 LED lighting fixture
CN110388577A (en) * 2019-08-27 2019-10-29 广东恒辰光电科技有限公司 A kind of LED lamp
KR20210131146A (en) * 2020-04-23 2021-11-02 최활 Heat and protection structure of golf course lighting
KR20210132396A (en) * 2020-04-27 2021-11-04 최활 Lens assembling structure for led lighting apparatus
TWI805385B (en) * 2022-05-31 2023-06-11 世頂企業有限公司 LED light bar fixing structure

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