KR20100003103U - A led lamp and streetlight made of the same - Google Patents

Abstract

Disclosed are a bulb type LED lamp having an efficient heat dissipation structure and a street lamp using such a lamp. The bulb type LED lamp is a lamp having an LED as a light source, and each of the heat dissipating parts 12 having at least one heat dissipation fin 12A is radially radiated from the center C so that a heat dissipation space S is formed therebetween. Each of which is formed to extend, the outer end of each of the heat dissipating portion 12, the installation portion 14 is formed by maintaining a distance from each other, each of the cylindrical heat dissipation member 10 is coupled to the socket portion 20; And a PC 50 electrically connected to the socket 20 and having a plurality of LEDs 40 disposed at equal intervals and coupled to each of the installation units 14. And a street light using such a bulb type LED lamp as a light source is presented. According to such a lamp, the heat dissipation portion of the heat dissipation member is provided with a heat dissipation fin to extend radially to form an overall cylindrical shape, thereby providing the effect that the LED installed in each installation portion can radiate light in all directions. In addition, since the heat dissipation member is formed in the heat dissipation member, the heat transferred to the heat dissipation fin can be easily dissipated in the heat dissipation space. In particular, the heat dissipation member is installed in the heat dissipation space such that an auxiliary heat dissipation member made of a metal heat dissipation coil spring is in contact with the heat dissipation fin. It is done efficiently.

 Bulb-shaped LED lamps, street lights, heat dissipation

Description

Bulb type LED lamp and street light using the same {A LED LAMP AND STREETLIGHT MADE OF THE SAME}

The present invention relates to a bulb-type LED lamp and a street lamp using the same, and in particular, a bulb-type LED lamp to radiate light in all directions like a general incandescent lamp while having a heat dissipation structure that can effectively dissipate heat generated when the LED is turned on. And it relates to a street lamp using such a bulb type LED lamp.

The LED (Light Emitting Diode) is a device that emits light when a voltage is applied. The color of the emitted light creates a wavelength according to the composition of semiconductor chip components, and the wavelength of the light determines the color of the light.

LEDs are used for lighting or LCD backlights because of their long lifespan, eco-friendliness and fast response.

LEDs consume only 1/5 of the power of ordinary incandescent bulbs, have a reaction time of one million times faster, and are semi-permanent in their lifetime.They are electronic displays, display boards, industrial machine displays and other traffic safety devices for precision semiconductor equipment inspection instruments and automobile instrument panels. It is used in various fields, from signals to lighting fixtures.

Recently, many kinds of lamps using such LEDs have been introduced. The bulb type LED lamp has a structure in which the LED is installed in the heat radiation member formed with a heat radiation fin is coupled. However, the bulb-type LED lamp of such a structure has a problem that can not irradiate light from all directions because the heat dissipation member is composed of a flat plate, there is a problem that the heat dissipation member is not simple to effectively dissipate heat generated from the LED. .

On the other hand, the street lamp according to the prior art consumes a large amount of power by using a halogen lamp or the like. In order to reduce the power consumption of the street lamps, products using LED elements have been proposed, but since the LED elements are arranged on a flat heat sink, the size of the heat sink must be increased to maintain sufficient brightness. There was a problem that grows.

The present invention has been made to solve the problems of the prior art, the technical problem of the present invention is to provide a means that can effectively dissipate heat generated from the LED element.

Another technical problem of the present invention is to provide a bulb type LED lamp having a structure in which the LED light can be irradiated in all directions.

Another technical problem of the present invention is to provide a street lamp with a bulb-shaped LED lamp that is small in volume and the LED light can be irradiated in all directions.

In order to solve the technical problem of the present invention, the present invention,

As a lamp using the LED as a light source,

Each of the heat dissipation unit having at least one heat dissipation fin is formed to extend radially from the center so that a heat dissipation space is formed therebetween. Cylindrical heat dissipation member coupled to; And

It is electrically connected to the socket portion, a plurality of LEDs are arranged at equal intervals, the same as the length of the installation portion is provided with a PCB coupled to each of the installation portion; provides a bulb-type LED lamp comprising a.

The heat dissipation unit is characterized in that it is disposed in a straight radial line at the center.

The other side of the heat dissipation member is made of a metal material, characterized in that provided with a heat dissipation cap member formed with a plurality of heat dissipation holes.

The heat dissipation part may include four first heat dissipation parts disposed in a linear radial direction at a central portion thereof, and a second heat dissipation part extending in both sides from the middle of each of the first heat dissipation parts, and then linearly extending in a radial direction again.

The installation portion is formed with a coupling groove for coupling the PC, and the inlet of the coupling groove is characterized in that the separation prevention jaw is formed.

The heat dissipation space is characterized in that the auxiliary heat dissipation member of the metal material for dissipating the heat transmitted in contact with the heat dissipation portion and the heat dissipation fin into the air is inserted long in the longitudinal direction.

The auxiliary heat dissipation member is characterized in that the coil spring.

On the other hand, as the above-described light bulb type LED lamp as a light source,

A housing having a socket coupling portion for coupling the socket portion, a transparent cover member at a bottom surface thereof, and a reflection portion at an inner surface thereof; And

One end is coupled to the housing, the other end provides a street lamp consisting of a holding post fixed to the ground.

According to the bulb-type LED lamp and a street lamp using the same according to the present invention, the heat radiating portion of the heat radiating member is provided with a radiating fin to extend radially so as to form an overall cylindrical shape, whereby the LEDs installed in each installation portion adjust light in all directions. Not only can it be used, but the LEDs are installed in all directions to provide the effect that the lamp itself can be significantly reduced in volume.

In addition, since the heat dissipation portion of the heat dissipation member is disposed radially to form a heat dissipation space therebetween, heat transferred to the heat dissipation fins can be easily dissipated in the heat dissipation space, and in particular, an auxiliary heat dissipation member made of a metal coil spring in the heat dissipation space is provided. By being installed in contact with the heat dissipation fins, heat transmitted to the heat dissipation unit and the heat dissipation fins is more quickly dissipated through the auxiliary heat dissipation member, and thus the heat dissipation member can be quickly cooled. That is, heat dissipation is performed efficiently.

On the other hand, when the bulb-type LED lamp according to the present invention is applied to a street lamp having a reflective member, the lighting unit volume and power consumption of the street lamp is significantly reduced.

In addition, since the lamp has a general light bulb shape, it can be used to replace a light bulb with a high power consumption like a conventional incandescent light bulb, and when applied to a street lamp, a light distribution curve can be induced by using a reflector efficiently.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As illustrated in FIGS. 1 and 2, the bulb type LED lamp according to the first embodiment is a lamp having an LED as a light source. The lamp includes a heat dissipation member 10 having a heat dissipation structure and an installation unit 14, and a PC 50 provided with the plurality of LEDs 40 installed in the installation unit 14.

Looking at this in more detail as follows.

As shown in FIGS. 1 and 2, the heat dissipation member 10 includes a heat dissipation part 12 having at least one heat dissipation fin 12A at a central portion C such that a heat dissipation space S is formed therebetween. Each extending radially; In addition, an installation portion 14 is formed outside the end of each of the heat dissipation portions 12, and the installation portions 14 are formed to be spaced apart from each other.

The heat dissipation part 12 extends from the central portion C to four first heat dissipation parts 12B disposed radially in a straight line, and extends from both sides of the first heat dissipation parts 12B to both sides, and then again linearly radially. It consists of a second heat radiation portion 12C. Therefore, a heat dissipation space S is formed between each heat dissipation part 12.

Due to the structure of the heat dissipation unit 12, the heat dissipation member 10 has a cylindrical shape as a whole.

Then, the installation portion 14 which is open to the outside is formed at the end of each heat dissipation portion 12, respectively. The installation portion 14 is the PC 50 is installed, the coupling groove (14A) is formed to be coupled to the PC 50 is coupled, the separation prevention jaw (14B) is provided at both inlet of the coupling groove (14A) Each is formed. Therefore, the PCB 50 fitted to the coupling groove 14A is prevented from being separated by the separation preventing jaw 14B.

Meanwhile, in the heat dissipation space S, an auxiliary heat dissipation member 60 made of a metal material for dissipating heat transferred into contact with the heat dissipation unit 12 and the heat dissipation fin 12A into the air is inserted in the longitudinal direction. This auxiliary radiating member 60 is made of a coil spring as shown in FIG.

As shown in FIG. 3, the heat dissipation member 10 may have a heat dissipation portion 12 disposed in a straight radial direction at the center portion C. As shown in FIG. That is, the heat dissipation part 12 may be formed of only the first heat dissipation parts 12A disposed in the radial direction at the central portion C. The heat dissipation space S is also formed between the heat dissipation portions 12 of the heat dissipation member 10 having the above structure, and the auxiliary heat dissipation member 60 is installed.

On the other hand, when the auxiliary heat dissipation member 60 is installed in the heat dissipation space S, the heat dissipation fins 12A formed at each heat dissipation part 12 may contact the outer circumferential surface of the auxiliary heat dissipation member 60 to be in contact with the auxiliary heat dissipation member 60. Formed to have different lengths to wrap, the end connection line of each heat sink fin 12A forms a circle.

And, one side of the heat dissipation member 10 is coupled to the socket portion 20. The socket portion 20 has a structure for coupling to a power supply.

On the other hand, the PC 50 has a constant width and length so as to be inserted into the installation portion 14, the one side has a structure in which a plurality of LEDs 40 are arranged at equal intervals. Each of these PCs 50 is electrically connected to the socket 20. In addition, the PC 50 may be installed in close contact with the installation unit 14 by an adhesive capable of heat transfer.

The LED 40 may install transparent silicon or the like on the front surface in order to maximize light diffusion.

On the other hand, the other side of the heat dissipation member 10 is provided with a heat dissipation cap member 30 made of a metal material and formed with a plurality of heat dissipation holes 32. The heat dissipation cap member 30 serves to discharge the heat dissipated from the heat dissipation space S or the heat dissipation unit 12 while covering the end of the heat dissipation member 10 to the outside. The heat dissipation cap member 30 is preferably made of a metal material may be coupled by a screw or a thermally conductive adhesive.

Referring to the operation of the bulb-type LED lamp according to this embodiment configured as described above are as follows.

As shown in FIGS. 1 and 2, heat generated from the LED 40 is transferred to each installation unit 14 through the PC 50. Heat transmitted to each of the installation parts 14 is transferred to the heat radiation fins 12A formed in each of the heat radiation portions 12 of the first heat radiation portion 12B and the second heat radiation portion 12C, as shown in FIG. 2. Emanates. At this time, as shown by the arrow shown in Figure 2 heat is transferred to the central portion (C) through each of the first heat dissipating portion (12B) and the second heat dissipating portion (C) by the heat dissipation fin (12A) Is emitted. That is, since the heat to be transmitted is not immediately dissipated to the air of the space portion but is dissipated into the air through each cooling fin 12A in the process leading to the central portion C through the heat dissipation portion 12 made of metal having better thermal conductivity than air. Therefore, the heat dissipation can be more effective than the heat dissipation structure.

In addition, since the auxiliary heat dissipation member 60 installed in each heat dissipation space S is in contact with each heat dissipation fin 12A, it receives heat from each heat dissipation fin 12A and conducts heat into the air. At this time, since the auxiliary heat dissipation member 60 is formed of a spiral coil spring structure of a metal material, the area in contact with air is increased, so that the heat transferred from each heat dissipation fin 12A can be uniformly and effectively dissipated into the air.

In this way, the heat generated from each of the PCs 50 coupled to each of the installation parts 14 is more effectively caused by the air in the heat dissipation space S by the heat dissipation part 12, the heat dissipation fins 12A, and the auxiliary heat dissipation member 60. It can be radiated to the middle.

In addition, since the heat dissipation cap member 30 coupled to the other end of the heat dissipation member 12 is formed of a metal material, the heat transmitted from the heat dissipation member 10 and the heat dissipation space S is more effectively dissipated to the outside.

On the other hand, the bulb type LED lamp configured as described above, since the installation portion 14 is disposed radially around the center portion (C), the heat dissipation member 10 is formed in a cylindrical shape, each of the LEDs 40 to the light center (C) Since the irradiation is performed in all directions, the efficiency can be increased while the volume is smaller than that of a flat lamp. That is, since the PCB 50 having a large number of LEDs 40 is installed on the outer circumferential surface of the cylindrical heat dissipation member 10, its brightness may be improved compared to the size of the heat dissipation member 10, and the light may be lighted like a general incandescent lamp. Can be investigated everywhere.

On the other hand, Figure 4 shows another embodiment.

4 shows a street lamp to which the bulb type LED lamp according to the above-described embodiment is applied.

Let's look at this more specifically.

The street lamp as shown in FIG. 4 uses the bulb-type LED lamp according to the present invention as a light source. Such a street light includes a socket coupling portion 72 for coupling the socket portion 20 of the bulb type LED lamp, and a transparent cover member 74 is provided on a bottom surface thereof, and a reflection portion 76 is provided on an inner surface thereof. One end is coupled to the 70 and the housing 70, and the other end is composed of a support 80 is fixed to the ground.

Since the street light is a part of the light bulb type LED lamp is directly irradiated to the outside through the transparent cover member 74, the light of the LED 40 for the reflector 76 side is reflected outside through the reflector 76 The light of the entire lamp has a structure that can be irradiated in the direction to irradiate all without loss. Therefore, the lamp portion of the street lamp can be manufactured in a small size, so that the street lamp can be compact, and power consumption can be significantly reduced.

In the above, preferred embodiments of the present invention have been described, but modifications and variations within the scope without departing from the technical spirit of the present invention by those of ordinary skill in the art belong to the scope of the present invention Of course.

1 is an exploded perspective view showing a bulb-type LED lamp according to a first embodiment of the present invention.

Figure 2 is a cross-sectional view showing a heat dissipation member of the bulb-type LED lamp shown in FIG.

3 is a cross-sectional view showing a street lamp to which the bulb type LED lamp shown in FIG. 1 is applied.

4 is a cross-sectional view showing a bulb-type LED lamp according to a second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: heat radiating member 12: heat radiating portion

12A: heat dissipation fin 12B: first heat dissipation part

12C: second heat radiating portion 14: mounting portion

14A: engaging groove 14B: hanging jaw

20: socket portion 30: heat dissipation cap member

32: heat sink 40: LED

50: PC 60: auxiliary heat dissipation member

70 housing 72 socket coupling portion

74: transparent cover member 76: reflecting portion

80: props

Claims (10)

As a lamp using the LED as a light source, Each of the heat dissipating parts 12 having at least one heat dissipation fin 12A is formed to extend radially from the center C so as to form a heat dissipation space S therebetween, and ends of each heat dissipating part 12. Installation portions 14 are formed on the outside to maintain a distance from each other, one side of the cylindrical heat dissipation member 10 is coupled to the socket portion 20; And It is electrically connected to the socket portion 20, a plurality of LEDs 40 are arranged at equal intervals, the same as the length of the installation portion 14, the PC 50 is coupled to each of the installation portion 14 Bulb type LED lamp, characterized in that consisting of. The bulb type LED lamp according to claim 1, wherein the heat dissipating part (12) is disposed in a radially straight line at the central portion (C). The method of claim 1, wherein the other side of the heat dissipation member 10 of the bulb type LED lamp, characterized in that the heat dissipation cap member 30 made of a metal material and formed with a plurality of heat dissipation holes (32) are provided. The method of claim 1, wherein the heat dissipation portion 12 is extended to both sides in the middle of the four first heat dissipation portion 12B and the first heat dissipation portion 12B arranged in a straight line radially from the central portion (C) The bulb-shaped LED lamp, characterized in that consisting of a second heat radiation portion (12C) extending in a straight radial again. The method according to any one of claims 1 to 4, wherein the installation portion 14 is formed with a coupling groove (14A) for coupling the PC 50, the separation stop 14B at the inlet of the coupling groove (14A). Bulb type LED lamp, characterized in that is formed. The auxiliary heat dissipation member 60 of a metal material is inserted into the heat dissipation space S in a lengthwise direction to dissipate heat transferred by contacting the heat dissipation portion 12 and the heat dissipation fin 12A into the air. Bulb-shaped LED lamp, characterized in that. The bulb type LED lamp according to claim 6, wherein the auxiliary heat dissipation member (60) is made of a coil spring. The auxiliary heat dissipation member (60) of a metal material for dissipating heat transferred to and in contact with the heat dissipation unit (12) and the heat dissipation fin (12A) into the air is inserted into the heat dissipation space (S). Bulb-shaped LED lamp, characterized in that. The bulb type LED lamp according to claim 8, wherein the auxiliary heat dissipation member (60) is made of a coil spring. As the light source LED lamp according to claim 9 as a light source, A housing 70 having a socket coupling portion 72 for coupling the socket portion 20, a transparent cover member 74 on a bottom surface thereof, and a reflection portion 76 on an inner surface thereof; And One end is coupled to the housing (70), the other end is a holding pole (80) fixed to the ground; street light characterized in that consisting of.

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