KR20110075153A - Led illumination lamp - Google Patents

Abstract

PURPOSE: An LED illumination lamp is provided to efficiently discharge heat in driving an LED by forming a plurality of radiation blade in the backside of an LED circuit board in a heat sink and the both ends of a tube. CONSTITUTION: An LED illumination lamp is comprised of a heat sink(110), a tube, a base(140), and a connection pin(141), and an air band. A radiation blade(111) is formed in the outer surface of the heat sink in longitudinal direction. A tube(120) is made of synthetic resin or glass.

Description

LED lighting lamp {LED illumination Lamp}

The present invention relates to a lamp, and more particularly, to an LED lamp to improve the heat dissipation ability.

In general, fluorescent lamps are the most commonly used light source around us, which is the most familiar light source. These fluorescent lamps are composed of separate parts such as fluorescent lamps and ballasts.

The fluorescent lamp is a tube shape in which fluorescent material is applied and argon gas and mercury vapor are sealed therein, and when electricity is supplied, a lighting tube (bimetal) is heated and attached to the tube, and the fluorescent lamp is a tube current when discharge starts. Is gradually increased to destroy the electrode, and a ballast such as a choke coil is used to limit the current to a certain value or less.

Most of the above-mentioned fluorescent lamps are used as illumination lamps, and the conventional fluorescent lamps are driven using a frequency of 60 Hz, so that the user may feel a lot of eye fatigue when using the lamps for a long time due to flickering 60 times per second. In use, it generates high power loss due to the increase of the ambient temperature due to its own heat generation, and there is a disadvantage that the fluorescent lamp is easily broken during overheating.

As a result, a conventional lamp such as a fluorescent lamp has a problem in that the service life is shortened due to a temperature rise and a high power loss, and a lot of parts are used, and thus, replacement cost is high.

LED fluorescent lamps have been developed to replace these fluorescent lamps, which are highly efficient in converting electric power into light, and are more economically effective than unit incandescent lamps and fluorescent lamps. In addition, since the amount of light can be obtained as desired, the stability is excellent, so the use of the lamp is gradually increasing.

In other words, LED fluorescent lamps developed to solve the problems of existing fluorescent lamps used in most homes or offices have a power consumption of only 20% than fluorescent lamps using fluorescent materials. It also has the advantage of not destroying the environment because of its life span of 10 years and no heavy metals such as lead or mercury.

The LED constituting the fluorescent lamp uses the shining property of the semiconductor, and is mainly used in liquid crystal display devices, electronic display panels, automobile instrument panels of mobile phones, but is widely used in interior lighting, signboards, backlight units of liquid crystal display devices, and general lighting. .

However, the LED has a high efficiency of converting power to light, but the light emitting part is made of a semiconductor device, and thus has a disadvantage in that the LED is relatively vulnerable 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, resulting in poor performance.

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.

In the conventional LED device, the surface area of the lead frame is relatively small, and since a separate heat dissipation structure such as a heat sink is not provided, it is very difficult to effectively dissipate heat generated from the LED device.

An object of the present invention is to provide an LED lamp to improve the heat dissipation ability by inducing natural cooling by configuring an air vent (air bent) in the socket to solve the conventional problems as described above.

LED lighting lamp according to the present invention for achieving the above object is a hemispherical heat sink having a plurality of heat dissipation wing portion, the tube is made of hemispherical shape while transmitting the heat sink and cover the heat dissipation, and a constant distance on the heat sink A PCB substrate having a plurality of LEDs mounted thereon, a base formed surrounding both ends of the tube including the heat sink, a connection pin formed at the base and connected to an external socket, and penetrating the surface of the base It characterized in that it comprises an air vent consisting of a plurality of holes corresponding to the heat sink.

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

That is, by forming a base having a plurality of heat dissipation blades on the rear surface of the LED circuit board having air vents formed of a plurality of holes at both ends of the heat dissipation plate and the tube, it is possible to more efficiently dissipate heat generated when driving the LED.

Hereinafter, with reference to the accompanying drawings will be described in more detail the LED lamp according to the present invention.

1 is a perspective view schematically showing an LED lamp according to the present invention, Figure 2 is an exploded perspective view showing an LED lamp according to the present invention, Figure 3 is an exploded cross-sectional view showing an LED lamp along the line II-II 'of FIG. 4 is a cross-sectional view illustrating a LED lamp along the line II-II ′ of FIG. 1.

1 to 4, the LED lighting lamp 100 according to the present invention covers a hemispherical heat sink 110 having a plurality of heat dissipation vanes 111 on the surface and the heat sink 110. While including a tube 120 made of a semi-spherical transparent material, a metal PCB board 130 mounted with a plurality of LEDs 131 arranged at regular intervals on the heat sink 110, and the heat sink 110 A base 140 formed around both ends of the tube 120, a connection pin 141 formed on the base 140 and connected to a socket (not shown), and a surface of the base 140. The air vent 142 includes a plurality of holes penetrating and corresponding to the heat sink 110.

Here, the heat dissipation plate 110 includes an extension portion 112 that is bent inwardly at both ends, and the plurality of heat dissipation wings 111 is configured to increase heat dissipation area to increase heat dissipation efficiency.

It includes a plate 113 and a receiving protrusion 114 connected to both sides of the plate 113 is mounted on the extension 112 of the heat sink 110 and having a flat structure on the surface so that the metal PCB substrate 130 is mounted. The fixing portion 115 is configured to.

The metal PCB substrate 130 is mounted between the receiving protrusions 114 of the fixing part 115.

Inserts 116 are formed at both upper ends of the heat sink 110, and corresponding inserts 121 are coupled to the inserts 116 at lower ends of the tube 120.

In addition, when the heat sink 110 and the tube 120 is coupled and separated, the insertion portion 116 and the corresponding insertion portion 121 exert elasticity, so that the heat sink 110 and the tube 120 are coupled and It is configured to ensure the ease of separation.

The heat sink 110 has an accommodating part 117 formed therein, and consists of an extension part 112 formed inwardly at both ends and bent upward. The heat sink 110 is a slim or stick type having a semi-circular shape. It is formed to have a length of, and in the present invention will form the main body of the lamp using the LED (131).

The accommodating part 117 is formed along the longitudinal direction while penetrating the inside of the heat sink 110, and the extension part 112 is formed to have a predetermined width along the longitudinal direction in a pair facing each other. The government 115 is mounted on the extension 112.

In addition, a converter 150 is built in the accommodating part 117, and is arranged under the plate 114 of the fixing part 115 to be connected to each of the LEDs 131. Each LED 131 can be turned on even when the power is input from either socket of the mercury discharge tube fluorescent lamp frame installed, so it is not necessary to consider the coupling direction when installing the LED lamp to the frame to improve the convenience of consumers and input power. Bi-directional to cut off over voltage and over current, remove surge voltage and noise from outside, and supply stable constant current of constant size to LED 131 so that each LED 131 can be turned on without blinking with constant illuminance. Input power processing becomes possible.

On the other hand, in the embodiment of the present invention has been described that the built-in converter 150, but not limited to this may be mounted on the external socket to the converter 150.

The heat dissipation wing 111 is formed along the longitudinal direction on the outer surface of the heat dissipation plate 110, and is formed to increase the heat dissipation area to increase heat dissipation efficiency, wherein the heat dissipation wing 111 is formed of the heat dissipation plate 110. To increase the heat dissipation efficiency by forming a plurality of heat dissipation wings on the inner wall surface of the accommodating part 117 as much as the space of the accommodating part 117 of the heat dissipating plate 110 allows to ensure the maximum heat dissipation area. It is desirable to prevent damage to the lamps due to overheating and to prevent the risk of fire.

The fixing part 115 includes a plate 113 mounted on the extension part 112 of the heat dissipation plate 110, and a receiving protrusion 114 connected to both sides of the plate 113. That is, in the fixing part 115, the plate 113 and the receiving protrusions 114 connected to both sides of the plate 113 protrude upwards, and thus the upper surface of the plate 113 and the respective receiving protrusions 114. A constant space is formed between the metal PCB substrate 130 is accommodated.

In this case, a taper 114a is formed on the inner side and the outer side of the receiving protrusion 114 so that the metal PCB substrate 130 is coupled to each other, and the corresponding insertion protrusion 122 of the corresponding insertion portion 121 will be described below. Corresponding to the inclined portion 124 formed in the heat sink 110 and the tube 120 is preferably to ensure the ease of separation and coupling ease.

The metal PCB substrate 130 is seated between the receiving protrusions 114 of the fixing part 115, and a plurality of LEDs 131 are mounted at regular intervals, and the metal PCB substrate 130 has a predetermined length. Is formed to have a, a plurality of LED 131 is mounted on the metal PCB substrate 130, the LED 131 is formed spaced at predetermined intervals along the longitudinal direction.

In this case, the LEDs 131 may be formed in a row on the metal PCB substrate 130, and furthermore, the LEDs 131 may be arranged in a zigzag shape in both directions, or the metal PCB substrate 130 may be The LED 131 may be arranged to form a predetermined gradient and have a plurality of rows on the metal PCB substrate 130 to extend the irradiation range.

Except for each LED 131 mounted portion of the metal PCB substrate 130, a white coating or a separate reflector using any one of the surface Ag, Al ₂ O ₃ , TiO ₂ , Al, PEN, PET The light source may be reflected when the LEDs 131 emit light.

 At this time, the LED 131 may be used by mixing at least one or a plurality of light emitting diodes of red (R), green (G), blue (B) and white (W).

The tube 120 is formed in a hemispherical shape covering the heat sink 110, the thickness of both sides is relatively thinner than the upper center, to increase the amount of light emitted to both sides to be irradiated from each LED 131 It is formed to extend the direction of light.

That is, the tube 120 is formed in a hemispherical shape so as to cover the upper portion of the heat sink 110, and the thickness of both sides is formed relatively thinner than the thickness of the upper center of the tube 120, the tube 120 It is preferable to increase the transmission amount of light emitted to both sides to extend the directing angle of the light irradiated from the respective LEDs 131 to increase the lighting efficiency of the lamp.

And the configuration for the coupling and separation of the heat sink 110 and the tube 120 is implemented by the detachment means described below will be described together.

Furthermore, although the tube 120 has been described as being made of a transparent material, the present invention is not limited thereto, and the tube 120 may be made of a semi-transparent member for correcting a transmission amount of a light source irradiated from each LED 131, which is the LED 131. By transmitting the direct light of the through a tube 120 formed of a translucent member, more natural and soft lighting is possible to reduce the fatigue of the user's eyes.

The detachable means has an insertion portion 116 formed at the upper end of the heat sink 110, a corresponding insertion portion 121 coupled to the insertion portion 116 is formed at the lower end at the tube 120, the heat sink When inserting and detaching the 110 and the tube 120, the inserting portion 116 and the corresponding inserting portion 121 exert elasticity to be detached, thereby ensuring ease of coupling and detachment of the heat sink 110 and the tube 120. You can do it.

And in the detachable means for implementing the insertion portion 116 is formed extending from both upper ends of the heat dissipation plate 110, bent inward to the insertion protrusion 116a, the insertion protrusion 116a and the extension portion An insertion groove 116b is formed by the 112 and the receiving projection 114, the corresponding insertion portion 121 is continuously bent in the inner and downward direction at both lower ends of the tube 120 is formed, the outside The corresponding insertion protrusion 122 is protruded and coupled to the insertion groove 116b, and the corresponding insertion groove 123 is formed on the corresponding insertion protrusion 121 to be coupled to the insertion protrusion 116a.

That is, when the heat sink 110 and the tube 120 are coupled and separated, the insertion protrusion 116a of the insertion portion 116 exerts elasticity on the corresponding insertion groove 123 of the corresponding insertion portion 121. Detachable, and the corresponding insertion protrusion 122 of the corresponding insertion portion 121 is formed to be detachable by exerting elasticity in the insertion groove 116b of the insertion portion 116, the heat sink 110 and the The coupling and separation of the tube 120 can be more easily and simply implemented.

Therefore, the lighting lamp using the LED 131, for example, when the LED 131 is broken or damaged, or when the abnormality of the metal PCB substrate 130, heat sink 110 to replace or repair them Desorption of the tube 120 can be quickly and easily ensure its convenience.

Particularly, when the heat sink 110 and the tube 120 are coupled, the corresponding insertion protrusion 122 of the corresponding insertion part 121 is in contact with the outer surface of the receiving protrusion 114 of the fixing part 115 and is coupled thereto. In this case, an inclined portion 124 inclined outward is formed at the inner lower portion of the corresponding insertion protrusion 122, thereby ensuring a coupling property when the heat sink 110 and the tube 120 are coupled to provide a more reliable product. It can be provided.

The base 140 is coupled to both ends of the heat sink 110 and the tube 120 and is coupled to both ends thereof to fix them.

Here, the base 140 is formed of a metal material or an insulating material, and in the embodiment of the present invention constitutes a base made of a metal material and is connected with the heat sink 110 so as to generate heat generated when each LED 131 emits light. It can be quickly discharged to the outside, the base 140 and the connecting pin 141 is made in one piece.

And the center of the base 140 is coupled to the connection pins 141 for supplying power supplied from the outside to the lighting, in this case a pinhole (not shown) for the connection pin 141 is formed in the LED lighting Enable electrical connection.

On the other hand, the connection pin 141 is simply installed in order to apply power to the lamp, the local area, the power supplied to the LED lamp may be supplied through a separate connector (not shown).

In addition, the base 140 corresponds to the heat dissipation plate 110, and a plurality of heat dissipation heats when the LEDs 131 emit light to the outside through the heat dissipation plate 110. An air vent 142 having a hole is configured. Here, since the air vent 142 is configured in the base 140 formed at both ends of the heat sink 110 and the tube 120, the outside air flows in or the inside air is easily discharged to the outside. The heat dissipation ability can be further improved than using only).

The metal PCB board 130 mounted on the heat sink 110 is fixed through a screw fastening method through the rear surface of the heat sink 110 or through the metal PCB board 130.

Without being limited to this, a sliding groove (not shown) is formed along the length direction so that the metal PCB substrate 130 is inserted from one side on the heat sink 110, and the metal PCB substrate 130 is inserted into the sliding groove. Can be fixed without using a separate fixing means.

In addition, a heat absorbing plate (not shown) made of a metal material may be separately configured between the metal PCB board 130 and the heat sink 110, wherein the heat absorbing plate has a thickness of 0.2 mm and the LEDs. It serves to absorb the heat generated from 131, each LED 131 has a 0.19W brightness.

The heat absorbing plate may be connected to the rear surface of the LED 131 through the metal PCB substrate 130 to transfer heat to the heat sink 110 when the LED 131 emits light.

On the other hand, the thickness of the heat absorbing plate is not limited to 0.2mm and can be made thick or thin as needed, the brightness of the LED 131 is not limited to 0.19W, but those skilled in the art It can be selected appropriately.

In addition, the material of the tube 120 is synthetic resin or glass, the synthetic resin is any one of acrylic, PE or PVC, polycarbonate, the light diffusion agent is mixed with the synthetic resin.

The metal PCB substrate 130 uses an aluminum substrate having excellent thermal conductivity.

The tube 120 is fixed to the front surface of the heat sink 110 to protect the LED 131 mounted on the metal PCB substrate 130, and configured to irradiate the light emitted from the LED 131 to the outside It is.

On the other hand, the heat sink 110 and the tube 120 in the LED lamp according to the present invention has been described as a hemispherical shape as an example, but not limited to this, the shape can be arbitrarily changed according to the use of a square or polygonal shape.

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. Will be clear to those who have knowledge of.

1 is a perspective view schematically showing an LED lamp according to the present invention

Figure 2 is an exploded perspective view showing the LED lamp according to the present invention

3 is an exploded cross-sectional view showing an LED lamp along the line II-II 'of FIG.

4 is a cross-sectional view illustrating an LED lamp along line II-II ′ of FIG. 1.

Explanation of symbols for the main parts of the drawings

110: heat sink 120: tube

130: metal PCB substrate 140: base

150: converter

Claims (13)

A hemispherical heat sink having a plurality of heat dissipation wings, Covering the heat sink and made of a hemispherical tube through which light is transmitted; A PCB board mounted with a plurality of LEDs arranged at regular intervals on the heat sink; A base formed while wrapping both ends of the tube including the heat sink; A connection pin formed in the base and connected to an external socket; LED light, characterized in that it comprises an air vent consisting of a plurality of holes corresponding to the heat sink through the surface of the base. The LED lamp of claim 1, further comprising a heat absorbing plate disposed between the PCB substrate and the heat sink. The heat dissipation plate of claim 1, wherein the heat dissipation plate includes a fixing part including an extension part bent inwardly at both ends, a plate mounted on the extension part, and a receiving protrusion connected to both sides of the plate. LED light. The LED lamp of claim 1, wherein the base is made of a metal material or an insulating material. The LED lamp of claim 1, wherein the base and the connection pin are integrally formed. According to claim 1, Inserts formed on the upper end of both sides of the heat sink and the corresponding insertion portion coupled to the inserting portion is formed on both lower ends of the tube, the insertion portion and the corresponding when the heat dissipation plate and the tube is detached LED light fixture, characterized in that made by including an insertion portion detachable means for ensuring the coupling and separation ease of the heat sink and the tube by detachable. The method of claim 6, wherein the insertion portion is formed from the upper end of both sides of the heat dissipation means, the insertion portion is bent toward the inside is an insertion groove formed by the insertion projection, the insertion projection and the extension and the receiving projection, Corresponding inserting portion is formed in the lower end of the cap in a continuous bending in the inner and lower direction, the corresponding insertion projection is projected outward and coupled to the insertion groove, the corresponding insertion groove is formed on the corresponding insertion projection upper portion is the corresponding insertion groove LED lighting lamp characterized in that. The method of claim 6, wherein the inner side of the corresponding insertion projection protrusion is formed in the inclined portion to ensure the coupling ratio when coupling the main body and the cap when the corresponding insertion projection is coupled to the outer surface of the receiving projection is formed. LED illuminator characterized by. The LED lamp of claim 1, wherein the tube is made of a transparent material or a translucent material. The LED lamp of claim 1, wherein a reflective material is coated or a reflecting plate is formed on a surface of the PCB substrate except for the LED device. The LED lamp of claim 1, further comprising a converter configured inside the heat sink and connected to each of the LEDs. The LED lamp of claim 1, wherein the PCB substrate is a metal PCB substrate. The LED lamp of claim 2, wherein the heat absorbing plate is connected to the rear surface of the LED through the metal PCB substrate.

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