KR20190088946A - LED lamp with enhanced heat dissipation - Google Patents

Abstract

The present invention relates to a light emitting diode (LED) lamp with an enhanced heat dissipation function. More specifically, a heat dissipation plate has an LED substrate coupled thereon and a through hole, which is mutually interconnected to a side surface where an upper surface of the heat dissipation plate is exposed to the outside, formed thereon so as to dissipate heat generated on the LED substrate by air circulation through the through hole, thereby preventing malfunction and damage to the lamp. Moreover, the present invention comprises a vacuum pipe to convect a fluid filled in the vacuum pipe so as to further facilitate the air circulation through the through hole.

Description

LED lamp with enhanced heat dissipation < RTI ID = 0.0 >

[0001] The present invention relates to an LED lamp with enhanced heat dissipation function, and more particularly, to an LED lamp having a heat dissipation function, and more particularly, to an LED lamp having a light emitting diode (LED) substrate mounted on a heat dissipation plate, The heat generated on the LED substrate can be dissipated by the air circulation through the through holes so that malfunction and breakage of the lamp can be prevented. The present invention also provides a liquid So that air circulation through the through-hole can be further promoted, thereby improving the heat radiation function.

As a result of the development of lighting infrastructure, 20% of the total electricity consumption is used for lighting purposes, and accordingly, it is possible to use a high-brightness light source Research is being done in many ways.

LED lighting is an eco-friendly material in which light emitting diodes convert electrical energy into light energy and emit light, saving energy resources due to low power consumption, and emitting less waste such as mercury and greenhouse gases (CO2) It is becoming popular as an eco-friendly next generation lighting due to its advantages such as directing, long operating life and long operating life.

However, since LED light is emitted from a small device, local heat is generated in the device. Especially, when the LED chip is densely installed due to miniaturization and integration of the product, the circuit is normally operated The lifetime of the LED is shortened, and the illuminance is reduced.

In other words, if the heat generated by the LED light is not adequately dissipated, the design of the LED light is an important issue for the LED research because the lifetime and the performance of the LED light are seriously affected.

Korean Patent Registration No. 10-0778235 (Nov. 15, 2007) discloses a lighting apparatus comprising a light source unit including a plurality of LEDs mounted on a PCB, a heat dissipation unit connected to the PCB to emit heat from the light source unit, Wherein the heat dissipating means includes a coupling portion coupled to the housing and a heat dissipating portion having a radius parallel to or inclined with respect to the PCB around the coupling portion, A plurality of LED lamps are arranged in parallel.

However, since the heat dissipating plate is extended on the side of the lighting device, it is not good in terms of appearance and can not be used for general use in any socket. [0005] In the conventional technology, And there is a problem that the effect of heat dissipation is deteriorated because it relies solely on heat dissipation by conduction of the heat dissipation plate. In addition, the conventional LED light has a disadvantage in that a separate illumination lamp must be installed to more effectively diffuse the light.

In addition, the conventional LED heat dissipating structure has a problem in that the manufacturing cost is high because the vacuum tube and the LED substrate bonding structure are separated and the heat dissipation efficiency is low, and the respective components are separately manufactured and the vacuum tube is inserted into the LED substrate bonding structure.

(KR) Korea Patent No. 10-0778235

A light emitting diode (LED) substrate is fastened on a heat sink, and a through hole communicating with a top surface of the heat sink and a side surface exposed to the outside is formed, The heat generated on the substrate can be dissipated by the air circulation through the through hole and the circulation of the fluid filling the inside of the vacuum tube is promoted to further promote air circulation through the through hole so as to improve the heat radiation function of the LED lamp .

 Another object of the present invention is to provide an LED lamp having a heat radiating plate which is provided with a curved portion protruding in the longitudinal direction inside the transparent cover so that light emitted from the LED substrate can be diffused do.

The technical objects of the present invention are not limited to the above-mentioned technical problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a light-emitting device including: a light-transmissive cover having an independent accommodation space protruded; a base member positioned below the light-transmissive cover and electrically connected to external power depending on whether the light / And a second through hole is formed at one end of the through hole so that the light transmitting cover and the base member are connected to each other, And a second through hole communicating with the first through hole is formed on the side surface exposed between the first and second through holes, and a heat dissipating bracket connected to the base member in a power supply- And an LED substrate on which a plurality of LEDs are mounted to be flickerable.

The heat dissipating bracket according to an embodiment of the present invention further includes a vacuum tube connected to a rear surface of the fitting hole and having a plurality of fitting holes therein, the vacuum tube being integrally connected to the fitting hole, Wherein a U-shaped groove communicating with the first through hole and the second through hole is formed in the inner circumferential surface of the fitting hole so that the heat generated when the LED substrate is lit is transmitted through the U-shaped groove, the first through hole and the second through hole As shown in FIG.

According to an embodiment of the present invention, a longitudinal bent portion may protrude from the inner circumferential side of the receiving space to diffuse the light emitted from the LED substrate.

According to an embodiment of the present invention, a sensor receiving protrusion may protrude from the center of the lower portion of the vacuum tube.

According to an embodiment of the present invention, the heat dissipating bracket and the light transmitting cover, and the side edge where the heat dissipation bracket and the base member are connected to each other, are provided with projecting projections vertically alternately on the lower edge, Two through-holes may be formed.

According to an embodiment of the present invention, a second through hole may be formed in the side surface of the heat dissipating bracket in a horizontal direction for each position corresponding to the first through hole.

The LED lamp having a heat radiation function enhanced according to an exemplary embodiment of the present invention includes a light emitting diode (LED) substrate mounted on a heat sink, a through hole communicating with an upper surface of the heat sink and a side exposed to the outside So that heat generated on the LED substrate can be easily dissipated by air circulation through the through hole, thereby preventing malfunction and breakage of the lamp.

In addition, according to an embodiment of the present invention, an LED lamp having a heat-dissipating function enhances air circulation through a U-shaped groove formed in a side surface of a vacuum tube as a fluid moves inside the vacuum tube, So that the thermal efficiency can be further increased.

The LED lamp having a heat-radiating function according to an exemplary embodiment of the present invention is advantageous in that light radiated from an LED substrate can be diffused because a curved portion in the longitudinal direction is protruded inside the transparent cover.

FIG. 1 is a perspective view of an LED lamp with enhanced heat radiation function according to an exemplary embodiment of the present invention. Referring to FIG.
2 is an exploded perspective view of an LED lamp having a heat-dissipating function enhanced according to an embodiment of the present invention.
3 is a front view enlarged view of a vacuum tube according to an embodiment of the present invention.
4 is an exploded perspective view of an LED lamp having a heat dissipating function according to another embodiment of the present invention.
5 is a cross-sectional view of an LED lamp with a heat-dissipating function according to another embodiment of the present invention.
6 is another exploded perspective view of an LED lamp with a heat-dissipating function according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Also, the singular forms herein may include plural forms unless specifically stated in the text. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions.

FIG. 1 is a perspective view of an LED lamp having a heat dissipating function according to an exemplary embodiment of the present invention, and FIG. 2 is an exploded perspective view of an LED lamp having a heat dissipating function according to an exemplary embodiment of the present invention.

The LED lamp 1 having a heat dissipating function according to a preferred embodiment of the present invention includes a transparent cover 10 having an independent accommodation space 11 protruded thereon, (20) electrically connected to an external power source according to whether or not the light emitting diode is mounted on the base member (20), and is disposed between the light transmitting cover (10) and the base member (20) A first through hole 33 is formed at one end of the fitting hole 31 and is exposed between the light transmitting cover 10 and the base member 20 A heat dissipating bracket 30 having a second through hole 35 communicating with the first through hole 33 and a second heat dissipating bracket 30 located in the accommodating space 11, Is connected to the member (20) so as to be able to supply power, And an LED substrate 40 on which a plurality of LEDs 41 are mounted so as to be flickerable.

The heat dissipating bracket 30 according to an embodiment of the present invention further includes a vacuum tube 60 connected to a rear surface of the fitting hole 31 and having a plurality of fitting holes 31 therein, Wherein the first through hole (33) and the second through hole (31) are integrally formed with the fitting hole (31) and fluid is moved inside the vacuum tube (60) A U-shaped groove 39 communicating with the U-shaped groove 39 is formed in the upper surface of the U-shaped groove 39 so that the heat generated when the LED substrate 40 is turned on is transmitted through the U-shaped groove 39, the first through- As shown in FIG.

2, the translucent cover 10 accommodates a plurality of LED substrates 40 coupled to a vacuum tube and serves to transmit light emitted from the LEDs 41 of the LED substrate 40 to the outside So that the accommodation space 11 can be protruded outward.

A curved portion 13 is protruded in the longitudinal direction of the accommodation space 11 on the inner circumferential side of the transparent cover 10 where the accommodation space 11 is formed. Thereby diffusing light emitted from the light source.

At this time, the above-described bent portion 13 is formed in a repeated shape having the same curvature as shown in the enlarged view of FIG. 2. In addition to this, the shape of the bent portion 13 can be changed into various shapes in which light can be effectively diffused.

The base member 20 is electrically connected to the external power source according to whether the base member 20 is inserted into or removed from the socket, So that the power required for lighting is supplied. The base member 20 is the same as the base of the conventional lighting apparatus, and the detailed description thereof will be omitted for the sake of simplification of the description.

A heat dissipating bracket 30 is disposed between the light transmitting cover 10 and the base member 20 and is coupled to the light transmitting cover 10 and the base member 20. The heat dissipating bracket 30 is mounted on the LED substrate 40 and a vacuum tube (the LED substrate 40 which is lighted at the same time as the assembly is installed), and dissipates heat to the outside.

3 is a front view enlarged view of a vacuum tube according to an embodiment of the present invention.

The vacuum tube 60 is fastened to the heat dissipating bracket 30 in an upright manner. A plurality of fitting holes 31 are formed on the outer circumferential surface of the vacuum tube 60 so as to fasten the plurality of LED substrates 40, respectively. As shown in FIG. 3, the fitting hole 31 according to an embodiment of the present invention is formed in a shape of a tapered shape with a groove, so that the LED substrate 40 can be inserted into each of the fitting holes 31 and fastened have. On the other hand, an LED substrate cover 42 for fixing the LED substrate 40 can be disposed on the upper surface of the LED substrate 40 fastened to the fitting hole 31.

2 and 3, a U-shaped groove 39 communicating with the first through-hole 33 and the second through-hole 35 is formed at the center of each fitting hole 31 according to an embodiment of the present invention. . More specifically, the U-shaped groove 39 is formed at the center of the fitting hole 31 of the tube 60 in the vertical direction of the upright tube 60, The first through hole 33 formed on the upper surface of the heat dissipating bracket 30 and the second through hole 35 communicating with the first through hole 33 can be connected downward.

The vacuum tube 60 according to an embodiment of the present invention is made of a metal having excellent thermal conductivity such as aluminum and the inside is in a vacuum state and filled with a fluid to promote heat radiation.

The fluid according to an embodiment of the present invention may be composed of at least one of alcohol, acetone, methanol, water, and ammonia which can be used as a heat transfer medium, but is not limited thereto.

According to one embodiment of the present invention, the fluid contained in the vacuum tube 60 convects from a higher temperature side to a lower side. Heat generated from the LED substrate is also transferred to the vacuum tube 60, It is possible to perform a convection action.

The air circulation can be promoted through the U-shaped groove 39 formed in the center of the fitting hole 31 as the fluid inside the vacuum tube 60 performs a convection action according to an embodiment of the present invention.

Accordingly, when air circulation is promoted in the U-shaped groove 39, the air heated by the LED substrate 40 flows toward the heat dissipating bracket 30, passes through the first through-hole 33 formed in the heat dissipating bracket 30, Through the second through hole 35 formed on the side surface of the bracket 30 and exposed to the outside. That is, the LED lamp according to the embodiment of the present invention has an effect of enhancing the heat radiation function.

The vacuum tube 60 according to an embodiment of the present invention is integrally coupled to the fitting hole 31 for inserting the LED substrate 40. The LED tube 40 is connected to the vacuum tube 60 The state can be a structure that can increase the thermal conductivity by excluding the additional constitution. According to the structure in which the fitting hole 31 and the vacuum tube 60 are separated from each other, the thermal conductivity is lowered by the space between the fitting hole 31 and the vacuum tube 60 and the fitting hole 31 and the vacuum tube 60 must be separately manufactured However, according to the structure in which the fitting hole 31 and the vacuum tube 60 are integrally combined as in the present invention, since the thermal conductivity is high, the heat radiation function can be further strengthened, Cost is also cheaper than previous structure.

FIG. 4 is an exploded perspective view of an LED lamp with a heat-dissipating function according to another embodiment of the present invention, FIG. 5 is a sectional view thereof, FIG. 6 is a cross- Fig.

Hereinafter, the constituent members of the LED lamp 1 with enhanced heat radiation function according to another embodiment of the present invention and the connection relation thereof will be described in detail with reference to FIGS. 4 to 6. FIG.

The LED lamp 1 according to another embodiment of the present invention includes a transparent cover 10 having a plurality of independent storage spaces 11 protruded in one direction, (10) and the base member (20) and is coupled to both sides, and on the upper surface thereof, a number corresponding to the number corresponding to the accommodation space (11) A first through hole 33 is formed in the front of the fitting hole 31 and a side surface of the side surface exposed between the light transmitting cover 10 and the base member 20 is formed with a through- A heat dissipating bracket 30 having a second through hole 35 communicating with the first through hole 33 and a lower heat dissipating bracket 30 having a lower end fastened to the side of the fitting hole 31 and positioned in the receiving space 11, (20) is connected to be able to supply power, and when the power is supplied, A plurality of LEDs 41 are mounted so that the LEDs 41 are mounted on the LED substrate 40 so that heat generated when the LEDs are lighted is radiated to the outside through the first through holes 33 and the second through holes 35.

Here, the light-transmitting cover 10 can accommodate a plurality of LED substrates 40 by respectively forming a plurality of accommodating spaces protruding in one direction. Curved portions 13 are formed in the respective accommodating spaces 11 on the inner circumferential side where the accommodating space 11 of the translucent cover 10 is formed and the accommodating spaces 11 of the translucent cover 10 are integrally formed. On the other hand, the functions of the light-transmitting cover 10 and the components thereof are the same as those described above.

In the case of the conventional LED lamp cover, each protrusion formed with a receiving space is independently formed and separated, so that it is difficult for a user to replace the protrusion. In the case of the light-emitting cover 10 of the present invention, (10) can be easily replaced.

A sensor receiving protrusion 15 protrudes from the center of the translucent cover 10 formed with the accommodating space 11 and the sensor 50 is operatively provided in the sensor receiving protrusion 15, The sensor 50 serves to control the blinking of the LED 41 by recognizing the movement. Such a sensor 50 is the same as a conventional operation sensor or an ultraviolet sensor, and the detailed description will be omitted for simplification of the description.

In addition, the light-transmitting cover 10 may be variously modified according to the size of the LED lamp, and may be modified correspondingly to the size and the number of the LED substrate 40.

A heat dissipating bracket 30 is disposed between the light transmitting cover 10 and the base member 20 and is coupled to the light transmitting cover 10 and the base member 20. The heat dissipating bracket 30 is mounted on the LED substrate 40 and the LED substrate 40, which is lighted at the same time, receives heat and radiates heat to the outside. The heat dissipating bracket 30 has a plurality of fitting holes 31 protruding from the upper surface of the heat dissipating bracket 30 corresponding to the receiving space 11. A first through hole 33 is formed in the front of the fitting hole 31, And a second through hole 35 communicating with the first through hole 33 is formed on the side surface exposed between the light transmitting cover 10 and the base member 20 described above. The U-shaped groove 39 is formed in the inner peripheral surface of the fitting hole 31 so as to communicate with the first through hole 33 and the second through hole 35 when the LED substrate 40 is fastened.

Accordingly, the heat generated from the LED substrate 40 is conducted to the side of the heat dissipation bracket 30 formed of the same material as the conventional heat sink material, and then the first through hole 33, the second through hole 35, Is radiated to the outside by the convection action of the air circulated through the U-shaped groove 39 or directly radiated to the outside through the side surface of the heat dissipating bracket 30 exposed between the transparent cover 10 and the base member 20.

6, the above-described heat dissipating bracket 30 and the light transmitting cover 10, and the heat dissipating bracket 30 and the base member 20 are connected to each other As shown in FIG. 6, the heat dissipating bracket 30 may be formed on the lower side edge of the heat dissipating bracket 30 so as to protrude vertically alternately from the step protrusion 37, And may be formed in the lateral side of the first through hole in the horizontal direction at a position corresponding to the first through hole.

The LED substrate 40 is mounted on the fitting hole 31 of the heat dissipating bracket 30. The LED substrate 40 has a plurality of LEDs 41 mounted thereon so as to blink, Which is a blinking light.

The lower end of the LED substrate 40 is slid upright on the side of the fitting hole 31 and is respectively positioned in the accommodation space 11 described above and is electrically connected to the base member 20 by a wire So that power can be supplied.

The LED substrate 40 is the same as the LED substrate 40 used in a conventional LED (Light Emitting Diode) illumination, and the detailed description thereof will be omitted for the sake of simplicity.

According to an embodiment of the present invention, a longitudinal bent portion may protrude from the inner circumferential side of the receiving space to diffuse the light emitted from the LED substrate.

According to an embodiment of the present invention, a sensor receiving protrusion may protrude from the center of the lower portion of the vacuum tube.

According to an embodiment of the present invention, the heat dissipating bracket and the light transmitting cover, and the side edge where the heat dissipation bracket and the base member are connected to each other, are provided with projecting projections vertically alternately on the lower edge, Two through-holes may be formed.

According to an embodiment of the present invention, a second through hole may be formed in the side surface of the heat dissipating bracket in a horizontal direction for each position corresponding to the first through hole.

Hereinafter, the overall operation of the LED lamp 1 with the heat sink according to the preferred embodiment of the present invention will be described in detail with reference to FIG.

When power is supplied to the LED substrate 40 and the LED 41 is turned on, heat is gradually generated on the LED substrate 40 side. The generated heat is conducted to the side of the heat dissipating bracket 30 formed of a metal material, and then, by the convection action of the air circulated through the first through hole 33, the second through hole 35 and the U- Or is radiated directly to the outside through the side surface of the heat dissipating bracket 30 exposed between the transparent cover 10 and the base member 20. [

In addition, since the bent portion 13 is formed in the transparent cover 10 in which the LED substrate 40 is accommodated, the light emitted from the LED 41 is effectively diffused, Lighting is possible.

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 invention as defined by the appended claims. Therefore, the disclosed methods should be considered from an illustrative point of view, not from a restrictive point of view. The scope of the present invention is indicated by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

1: LED lamp with heat sink
10: Floodlight cover
11: accommodation space
13: Bend
15: sensor receiving groove
20: base member
30: heat dissipation bracket
31:
33: First through hole
35: second through hole
37:
39: U-shaped groove
40: LED substrate
41: LED
42: LED substrate cover
50: Sensor
60: vacuum tube

Claims (5)

A transparent cover 10 in which an independent accommodation space 11 is protruded;
A base member 20 positioned below the light-transmissive cover 10 and electrically connected to an external power source depending on whether the socket is inserted into or removed from the socket;
A plurality of projections 31 are vertically protruded from the upper surface of the projection cover 10 so as to correspond to the plurality of LEDs 41, A first through hole 33 is formed at one end of the first through hole 31 and a second through hole 33 communicating with the first through hole 33 is formed in a side surface exposed between the light- A heat dissipation bracket 30 formed with a heat dissipation member 35; And
A plurality of LEDs 41 are mounted so as to be able to be blinked depending on whether power is supplied or not, which is connected to the base member 20 in a power supply state, And an LED substrate (40)
The heat dissipation bracket (30)
And a vacuum tube 60 connected to a rear surface of the fitting hole 31 and having a plurality of fitting holes 31. The vacuum tube 60 is integrally connected to the fitting hole 31, And is moved inside the vacuum tube (60)
A U-shaped groove 39 communicating with the first through hole 33 and the second through hole 35 is formed on the inner circumferential surface of the fitting hole 31 so that heat generated when the LED substrate 40 is lighted And the heat is radiated to the outside through the U-shaped groove (39), the first through hole (33), and the second through hole (35). The method according to claim 1,
Wherein a longitudinal bending portion (13) is protruded from the inner circumferential side of the receiving space (11) to diffuse light emitted from the LED substrate (40). The method according to claim 1,
And a sensor receiving protrusion protrudes from the center of the lower portion of the vacuum tube (60). 4. The method according to any one of claims 1 to 3,
A step protrusion 37 is vertically alternately protruded on the lower side edge of the radiating bracket 30 and the translucent cover 10 and the radiating bracket 30 and the base member 20, And the second through hole (35) is formed between the step protrusions (37). ≪ IMAGE > 4. The method according to any one of claims 1 to 3,
And a second through hole is formed in the side surface of the heat dissipating bracket (30) in a horizontal direction at each position corresponding to the first through hole.

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