KR20130140400A - Led illumination lamp - Google Patents

Led illumination lamp Download PDF

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Publication number
KR20130140400A
KR20130140400A KR1020120063759A KR20120063759A KR20130140400A KR 20130140400 A KR20130140400 A KR 20130140400A KR 1020120063759 A KR1020120063759 A KR 1020120063759A KR 20120063759 A KR20120063759 A KR 20120063759A KR 20130140400 A KR20130140400 A KR 20130140400A
Authority
KR
South Korea
Prior art keywords
body case
main body
led lighting
led
pcb substrate
Prior art date
Application number
KR1020120063759A
Other languages
Korean (ko)
Inventor
박기주
김정수
Original Assignee
주식회사엘이디파워
박기주
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 주식회사엘이디파워, 박기주 filed Critical 주식회사엘이디파워
Priority to KR1020120063759A priority Critical patent/KR20130140400A/en
Publication of KR20130140400A publication Critical patent/KR20130140400A/en

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Classifications

    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • 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)
  • Microelectronics & Electronic Packaging (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 an LED illumination device capable of improving a radiating capability by comprising a plurality of vent holes formed in the side surface and the rear surface of a body case to radiate the heat generated inside the body case to the outside. The LED illumination device comprises a PCB substrate in which a plurality of LEDs are mounted in a certain distance; a body case which has the PCB substrate mounted therein and the opened upper part; a diffusion cover which is formed in the upper part of the body case having the PCB substrate mounted therein and diffuses the light emitted from the LED; and a plurality of vent holes which are formed in the side surface and the rear surface of the body case to radiate the heat generated inside the body case to the outside.

Description

LED illumination device

The present invention relates to an LED lighting device, and more particularly to an LED lighting device to improve the heat dissipation characteristics.

In general, various lighting devices are used to be installed in indoor or outdoor advertisements or signs to identify images at day or night. These lighting devices use filament bulbs, fluorescent lights, neon signs or LEDs (Light Emitting Diodes).

In particular, the lighting using LED has the advantage that the life of the LED is semi-permanent, low price, low power consumption, the use is increasing.

Here, LED refers to a light emitting diode device, and has advantages such as fast processing speed and low power consumption of LED semiconductors, and has been spotlighted as a next-generation strategic product due to its environmentally friendly and high energy saving effect.

The LED device is composed of p-type and n-type semiconductors, and when voltage is applied, electrons and holes are combined to emit energy corresponding to the bandgap of the semiconductor in the form of light. It is a kind of optoelectronic device.

Recently, various colors of LED have been developed to enable natural color display, and are being applied to various places such as outdoor large billboards, traffic lights, automobile dashboards, home appliances, neon replacement signs, medical equipment, warnings and induction lamps.

In addition, the LED lighting device is in the spotlight as a lighting fixture due to the low power consumption of about 10% to 15%, semi-permanent life of more than 50,000 hours, and environmentally friendly characteristics compared to conventional incandescent or fluorescent lamps.

However, the LED has a high efficiency of converting power to light, but the light emitting part is made of a semiconductor device, so it is relatively weak to heat compared to light emitting devices such as incandescent lamps using filaments or fluorescent lamps using cathode rays.

In other words, the LED is easily degraded due to thermal stress caused by self-heat generated from the light emitting device when the LED is used for a long time, and its performance is degraded.

Therefore, in order to send a large amount of current to the LED, a heat dissipation structure for effectively dissipating heat generated therefrom becomes a very important factor.

The present invention is to solve the above problems by providing a plurality of ventilation holes on the side and the back of the main body case to provide an LED lighting device to improve the heat dissipation ability by releasing heat generated from the outside to the outside. There is a purpose.

LED lighting apparatus according to the present invention for achieving the above object is a PCB substrate mounted with a plurality of LEDs at regular intervals, the body case is mounted to the top and the PCB board mounted therein, and the PCB substrate A diffusion cover formed on an upper part of the main body case and configured to emit light emitted from the LED to the outside; and a plurality of diffusion covers disposed on the side and the rear of the main body case to dissipate heat generated inside the main body case to the outside. Characterized in that it comprises a vent hole.

The LED lighting apparatus according to the present invention has the following effects.

First, it is possible to improve the heat dissipation ability by constituting a plurality of vent holes on the side and back of the main body case to release the heat generated from the inside to the outside.

Second, by forming a plurality of protrusions on the inner surface of the main body case to have a predetermined gap between the PCB substrate and the main body case it is possible to discharge the heat of the interior more quickly through the vent hole.

1 is a perspective view schematically showing an LED lighting apparatus according to a first embodiment of the present invention
FIG. 2 is a cross-sectional view of an LED lighting apparatus according to line II-II of FIG. 1.
3 is a plan view showing a part of the rear surface of the LED lighting apparatus of FIG.
4 is a cross-sectional view showing an LED lighting apparatus according to a second embodiment of the present invention

Hereinafter, an LED lighting device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

1 is a perspective view schematically showing an LED lighting apparatus according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing the LED lighting apparatus according to the II-II line of Figure 1, Figure 3 is the LED lighting of Figure 2 It is a top view which shows a part of back surface of apparatus.

As shown in FIGS. 1 to 3, the LED lighting apparatus according to the first embodiment of the present invention includes a PCB substrate 120 having a plurality of LEDs 121 mounted at regular intervals, and the PCB substrate 120. Diffused to mount the inside of the body case 110 having an upper opening and the body case 110 on which the PCB substrate 120 is mounted to emit light emitted from the LED 121 to the outside. The cover 130, a fixing member 140 for fixing the edge of the diffusion cover 130 and the upper portion of the main body case 110, and a plurality of the main body case 110 on the side and the back of the main body case 110 It is configured to include a louver-type vent hole 150 for dissipating heat generated inside the case 110 to the outside.

Here, the plurality of vent holes 150 formed on the side and the rear surface of the main body case 110 is for natural heat dissipation and radiates heat generated from the LED 121 to the outside.

Although the diffusion cover 130 and the main body case 110 have been described to be fixed using the fixing member 140, the present invention is not limited thereto, and the slide cover 130 and the main body case 110 constitute a slide groove on the upper side of the main body case 110, and the slide Sliding the diffusion cover 130 in the groove may be fastened.

The main body case 110 is made of a metal material to maximize the heat radiating effect.

The main body case 110 has a stepped surface at an upper portion thereof, the diffusion cover 130 is placed on the stepped surface, and the fixing member has a circumference of the main body case 110 together with an edge of the diffusion cover 130. It is fixed using 140. In this case, the fixing member 140 may be fixed using a separate fixing member (not shown) without fixing the diffusion cover 130 and the main body case 110.

The inside surface of the main body case 110 is coated with a white coating material such as Ag, Al 2 O 3 , TiO 2 , Al, PET or the like with excellent reflection efficiency. The main body case 110 is 300 mm × 300 mm, 300 mm x 600 mm, 600 mm x 600 mm, and the like.

In addition, the body case 110 may be formed in various shapes such as a circular shape, an ellipse, or a polygonal shape in addition to a rectangular shape.

That is, in the embodiment of the present invention has been described as a surface lighting as an LED lighting device, but not limited to this case installed a plurality of ventilator 150 in the case installed with a lighting device or a downlight lighting combined with LED fluorescent lamps heat dissipation effect Can be maximized.

The central portion of the inner surface of the main body case 110 may have a planar structure and be formed to have a sloped surface having a predetermined inclination at both sides of the central portion.

Here, the PCB substrate 120 is a metal PCB substrate for facilitating the heat dissipation. The surface of the PCB substrate 120 may be made of Ag, Al 2 O 3 , TiO 2 , Al, PEN, or PET may be used for the white coating or a separate reflection plate may be attached to reflect the light source when each LED 121 emits light.

 At this time, the LED 121 may use at least one or a plurality of light emitting diodes of red (R), green (G), blue (B) and white (W)

The fixing member 140 may be formed in a clip structure to fix the diffusion cover 130 together with the main body case 110.

The diffusion cover 130 may be made of a transparent material, but is not limited thereto. The diffusion cover 130 may be a translucent member for correcting the amount of light transmitted through the LED elements 121.

When the vent 150 is made of a louver type, the heat generated inside the main body case 110 can be quickly discharged to the outside, and the foreign matter such as dust from the outside can be blocked.

On the other hand, in order to increase the heat dissipation effect is generally using a metal PCB substrate or a metal case, it is fixed through the fixing member 140 in the state in which the diffusion cover 130 is covered on the upper portion of the main body case 110 Since it is made of a sealed structure, the heat generated inside the main body case 110 is not effectively released, thereby reducing the life of the LED 121.

Therefore, the present invention forms a plurality of ventilation holes 150 penetrating through the side and the rear surface of the main body case 110 in the LED lighting device attached to the ceiling or wall of the building to heat the heat generated in the sealed interior ( 150) can be quickly discharged to the outside to maximize the heat dissipation effect.

4 is a cross-sectional view showing an LED lighting apparatus according to a second embodiment of the present invention.

As shown in FIG. 4, the LED lighting apparatus according to the second embodiment of the present invention has a plurality of protrusions 160 on the surface of the main body case 11 on which the PCB substrate 120 is mounted, as compared with the first embodiment. The same is true except for constructing).

That is, the LED lighting apparatus according to the second embodiment of the present invention forms a protrusion 160 protruding a predetermined height upward at regular intervals on the inner surface of the main body case 110, and the PCB on the protrusion 160. The substrate 120 is mounted.

Here, the protrusion 160 is integrally formed on the surface of the body case 110 to support the PCB substrate 120.

As a result, when the plurality of LEDs 121 mounted on the PCB substrate 120 emit light, the PCB substrate 120 does not contact the inner surface of the main body case 110 by the protrusions 160, thereby providing a constant gap. Since the internal heat is quickly discharged to the outside through the vent hole 150 by the gap can maximize the heat dissipation effect.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

110: main body case 120: PCB substrate
130: diffusion cover 140: fixed member
150: vent 160: protrusion

Claims (6)

A PCB substrate having a plurality of LEDs mounted at regular intervals,
A main body case in which the PCB substrate is mounted inside and an upper portion thereof is opened;
A diffusion cover formed on an upper surface of the body case on which the PCB substrate is mounted to emit light emitted from the LED to the outside,
LED lighting device, characterized in that it comprises a plurality of vent holes for releasing heat generated in the interior of the main body case to the outside and a plurality of the main body case. The LED lighting apparatus of claim 1, wherein the vent is formed in a louver type to prevent the inflow of foreign substances. The LED lighting apparatus of claim 1, further comprising a fixing member for fixing an edge of the diffusion cover and an upper portion of the main body case.  The LED lighting apparatus of claim 1, wherein a slide groove is formed on an upper side of the main body case, and the diffusion cover is slid and fastened to the slide groove. The LED lighting apparatus of claim 1, further comprising a plurality of protrusions formed at a predetermined height on an inner surface of the main body case. The LED lighting apparatus of claim 5, wherein the protrusion is integrally formed with the main body case to have a predetermined gap between the PCB substrate and the main body case.
KR1020120063759A 2012-06-14 2012-06-14 Led illumination lamp KR20130140400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120063759A KR20130140400A (en) 2012-06-14 2012-06-14 Led illumination lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120063759A KR20130140400A (en) 2012-06-14 2012-06-14 Led illumination lamp

Publications (1)

Publication Number Publication Date
KR20130140400A true KR20130140400A (en) 2013-12-24

Family

ID=49985028

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120063759A KR20130140400A (en) 2012-06-14 2012-06-14 Led illumination lamp

Country Status (1)

Country Link
KR (1) KR20130140400A (en)

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