KR20150025439A - Led light device - Google Patents

Abstract

An LED lighting device comprising: a socket portion coupled to a socket for an illuminator; an LED module formed in a strip shape and provided with a plurality of LEDs; a movement space in which air moves inside; and an LED module Shaped LED module is mounted on the outer circumferential surface of the mounting member so as to irradiate light in various directions and angles, and the light is irradiated through the moving space inside the mounting member It is possible to effectively cool the LED module by moving the air.

Description

LED LIGHT DEVICE {LED LIGHT DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED lighting apparatus, and more particularly, to an LED lighting apparatus that effectively dissipates heat generated during a light emitting operation of an LED module.

In recent years, an LED lighting apparatus using a light emitting diode (LED) has been applied to a lighting apparatus.

LED lighting fixtures have lower power consumption, relatively lower surface temperature, and longer life than conventional halogen bulbs.

Particularly, in recent years, a bulb-type LED lighting fixture having a front power connection is being developed so that the LED lighting fixture can be mounted on a general bulb socket.

The present applicant has already disclosed an LED bulb having a diffusing and reflecting function in Patent Document 1 and has been patented.

That is, the LED bulb according to Patent Document 1 has a plurality of LEDs as a light source body, and the diffusion plate with the light source body is coupled to the socket, and the diffusion plate and the light source body can be easily replaced.

Korean Patent Registration No. 10-1096126 (issued on December 19, 2011)

On the other hand, the conventional LED lighting apparatus has a disadvantage that the price of the LED lighting apparatus is higher than that of the conventional halogen lamp, and the brightness of the illuminating light is lower than that of the conventional halogen lamp.

In addition, since the conventional LED lighting apparatus generates a high temperature in a high-brightness LED, a heat dissipating means is attached to the LED lighting apparatus in order to solve the problem.

That is, since the LED bulb according to Patent Document 1 has a large number of components and is complicated in the assembling process, the heat generated during the light emitting operation of the LED module can not be diverted in an economical manner, thereby shortening the lifetime of the LED lighting fixture, There was a problem that it was difficult to produce and sell.

On the other hand, the US post-light regulations stipulate that luminaires or luminaires must have a certain luminous intensity distribution

SUMMARY OF THE INVENTION An object of the present invention is to provide an LED lighting apparatus capable of effectively dissipating heat generated during a light emitting operation of an LED module.

Another object of the present invention is to provide an LED lighting fixture that can satisfy US < RTI ID = 0.0 >

According to an aspect of the present invention, there is provided an LED lighting apparatus including a socket coupled to a socket for an illuminator, an LED module formed in a strip shape and provided with a plurality of LEDs, And a cap for shielding the exterior of the mounting member.

And heat dissipating means for dissipating heat generated during the light emitting operation of the LED module.

The heat dissipating means includes a heat dissipating fin installed on an inner circumferential surface of the mounting member and radiating heat generated from the LED module. The heat dissipating fin is provided with a plurality of heat dissipating members arranged in a horizontal direction or radially outward from the center .

The present invention is characterized in that a plurality of LEDs are installed at a predetermined interval on the upper surface of the LED module, and an adhesive layer is provided on the lower surface of the LED module so as to be attachable to the mounting member.

The mounting member is made of a material having thermal conductivity, and the outer circumferential surface of the mounting member is curved or convex.

The cap includes a spherical portion formed in a spherical shape having an upper surface and a lower surface opened to be coupled to upper and lower ends of the attachment member, and a connection portion connecting the spherical portion and the socket portion.

The inner circumferential surface of the spherical portion is provided with a plurality of protrusions for diffusely reflecting light emitted from the LED module, and at least one through hole is formed in the connection portion.

And the spherical portion is manufactured to have a light transmittance of 88 to 95%.

The heat dissipating means may include at least one thermoelectric element.

The present invention further includes blowing means for supplying outside air to the moving space, wherein the blowing means includes a blowing fan installed in a lower portion of the socket portion or inside the mounting member, and a driving motor for providing a driving force to the blowing fan can do.

As described above, according to the LED lighting apparatus of the present invention, by providing the strip-shaped LED module on the outer circumferential surface of the mounting member and irradiating light in various directions and angles, Loses.

According to the present invention, since a moving space is provided inside the mounting member and air is supplied smoothly, heat generated during the light emitting operation of the LED module can be effectively dissipated.

Particularly, according to the present invention, heat dissipation means and blowing means are provided inside the mounting member to dissipate the heat inside the LED module to the outside, and circulate the external air below the LED module to the upper portion, The effect can be obtained.

In addition, according to the present invention, power is supplied to the LED lighting device in various ways by a socket portion coupled to a socket for an illuminator, a power line to be supplied with a commercial power or a socket for a halogen lamp, The effect of expanding the application field of the lighting apparatus is obtained.

As a result, according to the present invention, the heat generated during the light emitting operation of the LED module is effectively dissipated to prevent the thermal damage of the LED module, thereby extending the service life of the LED lighting fixture.

1 is a front view of an LED lighting apparatus according to a first embodiment of the present invention;
FIG. 2 is an exploded perspective view of the LED lighting apparatus shown in FIG. 1,
Fig. 3 is an enlarged cross-sectional view of a portion of the spherical portion shown in Fig. 2,
FIG. 4 is a diagram for explaining a light intensity distribution requirement of an omnidirectional lamp according to the US post-light regulations,
5 is an enlarged view showing a state of engagement between the fitting member and the spherical portion,
Fig. 6 is an exemplary view showing a modified example of the LED lighting apparatus shown in Fig. 1,
7 is an operational state diagram of the LED lighting apparatus according to the first embodiment of the present invention,
8 is an exemplary view of an LED lighting apparatus according to a second embodiment of the present invention,
9 and 10 are sectional views of an LED lighting apparatus according to a third embodiment of the present invention,
11 is an exemplary view of an LED lighting apparatus according to a fourth embodiment of the present invention.

Hereinafter, an LED lighting apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view of an LED lighting apparatus according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the LED lighting apparatus shown in FIG.

1 and 2, the LED lighting apparatus according to the first embodiment of the present invention includes a socket 10 coupled to a socket (not shown) for an illuminator, a plurality of LEDs 21 An LED module 20 includes a mounting member 30 having a moving space 31 in which air moves and an LED module 20 mounted on an outer circumferential surface thereof and a cap 40 for shielding the outside of the mounting member 30, .

In addition, the LED lighting apparatus according to the first embodiment of the present invention is installed on the inner circumferential surface of the installation member 30 and receives heat generated from the LED module 20 to receive the movement space 31 of the installation member 30, And heat dissipating means (50) for cooling the LED module by performing heat exchange with air moving through the LED module.

The socket portion 10 is threadedly engaged with the socket for an illuminator, and on the outer circumferential surface of the socket portion 10, a thread is formed so as to correspond to a screw groove formed in the socket for an illuminator.

2, the LED module 20 is formed in a strip shape, and a plurality of LEDs 21 are installed on the upper surface of the LED module 20, An adhesive layer 22 may be provided.

As described above, the LED module can be easily installed by winding and attaching the strip-shaped LED module on the outer peripheral surface of the mounting member.

Of course, the present invention may be modified so that the strip-shaped LED modules are attached to the outer circumferential surface of the mounting member in a horizontal direction or a vertical direction.

The LED lighting apparatus according to the first embodiment of the present invention further includes a switching mode power supply 23 for supplying power to the LED module 20, as shown in FIGS. 1 and 2 .

The power supply unit 23 may be provided as an integrated circuit chip in which a plurality of circuit elements are integrated so as to reduce the size of the LED lighting apparatus.

The power supply unit 23 may be installed on the upper end of the installation member 30 or may be embedded in the socket unit 10 or installed on the lower surface of the socket unit 10.

As described above, according to the present invention, since the power supply device provided with the integrated circuit chip is installed on the circuit board and used, the size of the LED lighting device is reduced, the temperature of the power supply device is prevented from rising, the output of the hinging lumen Can be obtained.

The mounting member 30 may be provided as a circular pipe having a substantially circular cross section.

Of course, the mounting member 30 may be provided as a rectangular pipe having a rectangular cross section, a hexagonal shape, an octagonal shape, or the like.

The mounting member 30 receives heat generated during the light emitting operation of the LED 21 and performs heat exchange with air moving through the internal moving space 31 to smoothly cool the LED module 20, And may be made of a material having thermal conductivity, such as aluminum, copper or an alloy thereof, or a thermally conductive plastic material.

In particular, the outer circumferential surface of the mounting member 30 may be curved to the inside so as to illuminate light emitted from the LED module 20 in various directions and angles.

Of course, the present invention can be modified so that the outer circumferential surface of the fitting member is curved convexly outwardly.

As described above, according to the present invention, since the outer circumferential surface of the mounting member is formed as a concave or convex curved surface, the light emitted from the plurality of LEDs provided on the LED module can be irradiated at various angles toward the vertical direction of the LED lighting fixture.

The cap 40 shields the outside of the mounting member 30 and functions to diffuse and scatter reflection of light emitted from the LED module 20.

The cap 40 includes a spherical portion 41 and a spherical portion 41 and a socket portion 10 which are formed in a substantially spherical shape so as to be able to be coupled to upper and lower ends of the mounting member 30, And may include a connection portion 42 for connection.

The cap 40 can be made transparent or translucent using a material such as glass or synthetic resin.

For example, the cap 40 may be fabricated to have a light transmittance of about 88 to 95% to prevent glare caused by light emitted from the LED module 20.

3 is an enlarged cross-sectional view of a portion of the spherical portion shown in Fig.

A plurality of irregular protrusions 43 may be formed on the inner circumferential surface of the spherical portion 41 of the cap 40 to diffuse and diffuse the light of the LED module 20.

2, at least one through hole 44 may be formed in the connection part 42 to discharge the air inside the cap 40 to the outside or to introduce outside air into the inside.

As described above, according to the present invention, the central portion of the mounting member is formed as a concave curved surface toward the inside and the cap is provided outside the mounting member, thereby preventing glare caused by light emitted from the LED module, It can be irradiated downward at various angles.

Accordingly, the present invention can satisfy the US after-beam regulation that at least 5% of the total flux (flux (lmens)) must emit in the range of 135 to 180 의 of the illuminator, as shown in Fig.

FIG. 4 is a diagram for explaining a light intensity distribution requirement of an omnidirectional lamp according to the United States regulations on daylight.

On the other hand, the mounting member 30 can be coupled to the inside of the upper and lower ends of the spherical portion 41.

For example, FIG. 5 is an enlarged view showing a state of engagement between the fitting member and the spherical portion.

5, an engaging protrusion 32 is formed on the upper and lower ends of the mounting member 30 and an engaging groove 46 is formed on the upper and lower ends of the spherical portion 41 so that the engaging protrusion 32 is engaged. The engaging portion 45 may be provided.

The inner surface of the one side wall of the engaging portion 45 may be formed with a locking protrusion 47 to prevent the engaging protrusion 32 from being detached from the engaging groove 46 due to external shock or vibration.

However, the present invention is not limited thereto.

For example, the present invention may be modified so that threads are formed on the upper and lower inner peripheral surfaces of the spherical portion, respectively, and threads are formed on the upper and lower ends of the mounting member so that the mounting member is screwed to the spherical portion.

The heat dissipating means 50 may include a heat dissipating fin 51 installed on the inner circumferential surface of the mounting member 30 and radiating heat generated by the LED module 20 as shown in FIGS.

The heat radiating fins 51 may be provided with a plurality of heat radiating plate members 52 arranged in the horizontal direction.

FIG. 6 is an exemplary view showing a modified example of the LED lighting apparatus shown in FIG. 1. FIG.

That is, as shown in FIG. 6, the present invention may be modified so that a plurality of heat sink members 52 are installed radially along the vertical direction from the center of the heat radiating fin 51 to the outside.

The heat dissipation fins 51 may be made of aluminum (Al), copper (Cu), magnesium (Mg), iron (Fe) or the like, which are excellent in thermal conductivity and easy to process.

Accordingly, in the present invention, a plurality of heat sink members are radially arranged in the horizontal direction or along the vertical direction to increase the contact area with air, thereby effectively dissipating the heat transmitted through the heat transfer member.

Particularly, according to the present invention, the heat dissipation performance of the heat radiating fins can be improved by forming the moving space inside the mounting member so that the heat radiating fins and the socket portions are spaced apart from each other and smoothly supplied to the external air radiator fins.

Next, a method of operating the LED lighting apparatus according to the first embodiment of the present invention will be described in detail with reference to FIG.

7 is an operational state diagram of the LED lighting apparatus according to the first embodiment of the present invention.

The LED lighting apparatus according to the first embodiment of the present invention is coupled to a socket for an illuminator using the socket unit 10. [

Then, the plurality of LEDs provided in the LED module 20 receive power from the power supply unit 23 through the electric wires provided in the socket for an illuminator, the LED module 20, and irradiate light.

The heat generated by the LED module 20 is transmitted to the radiating fin 51 through the mounting member 30 to which the LED module 20 is attached.

At this time, the heat radiating fins 51 may be installed in parallel or in a radial manner so as to increase the contact area with air.

In addition, since the heat radiating fins 51 and the socket portions 10 are provided so as to be spaced apart from each other and a space is provided, and the installation member 30 is provided in the shape of a circular or square pipe having a moving space 31 therein, (51) can smoothly receive outside air and perform heat exchange.

Accordingly, the present invention can effectively dissipate the heat generated during the light emitting operation of the LED module to prevent thermal damage to the LED module, thereby extending the service life of the LED lighting fixture.

In the first embodiment, the heat dissipating means 50 includes the radiating fin 51, but the present invention is not limited thereto.

8 is an exemplary view of an LED lighting apparatus according to a second embodiment of the present invention.

8, the LED lighting apparatus according to the second embodiment of the present invention is similar to that of the first embodiment except that at least one thermoelectric cooler 53 is attached to the heat dissipating means 50, .

The thermoelectric element 53 uses endothermic or exothermic heat generated by the Peltier effect. The thermoelectric element 53 is manufactured by pn-bonding a semiconductor made of bismuth and a compound (Bi ₂ Te ₃ ) such as a terelium compound.

The thermoelectric element 53 absorbs the heat of the LED module 20 transmitted through the mounting member 30 on one side coupled to the mounting member 30, The mounting member 30 and the LED module 20 can be cooled effectively by exothermically reacting with the air moving along the moving space 31. [

As described above, according to the present invention, since the thermoelectric elements are provided in the heat dissipating means, the operation of the thermoelectric elements is controlled using an electrical signal to accurately cool the temperature of the LED module, thereby preventing thermal damage to the LED module and extending the service life have.

Figs. 9 and 10 are illustrations of an LED lighting apparatus according to a third embodiment of the present invention.

The LED lighting apparatus according to the third embodiment of the present invention is similar to that of the first and second embodiments described above except that the ventilation means 60 is provided together with the heat dissipating means 50 as shown in Figures 9 and 10, .

The blowing means 60 may include a blowing fan 61 installed in a lower portion of the socket portion 10 or the mounting member 30 and a driving motor 62 for providing a driving force to the blowing fan 61.

That is, according to the present invention, since the blowing means is provided inside the installation member to forcibly blow the outside air into the LED module to effectively dissipate the heat generated during the light emitting operation of the LED module, Thereby extending the service life of the battery.

Meanwhile, the present invention may be modified such that only the blowing means is provided inside the installation member by removing the heat dissipating means described in the first and second embodiments.

9, external air is sucked from the lower portion of the LED lighting apparatus and is moved through the moving space inside the installation member. However, the present invention is not limited to the LED lighting apparatus, And may be changed so as to suck the outside air and move it through the moving space inside the installation member.

11 is an exemplary view of an LED lighting apparatus according to a fourth embodiment of the present invention.

10, the LED lighting apparatus according to the fourth embodiment of the present invention is similar to that of the LED lighting apparatus according to the first embodiment except that the socket unit 10 is removed, It may be modified to connect the electric wire 11 connected to the power source to the upper end of the connection portion 42.

Accordingly, the present invention can drive the LED module by using the commercial power supplied through the electric wire, illuminate the light, and drive the blowing unit to effectively dissipate heat generated from the LED module.

In addition, the present invention may be modified to remove the socket portion 10 and install a power supply terminal (not shown) coupled to the socket for a halogen lamp at the top of the connection portion 42.

Accordingly, in the present invention, a power terminal is connected to a socket for a halogen lamp, and the LED module is driven by using a power supplied through the power terminal to irradiate light, and the heat generated in the LED module is effectively radiated It is possible.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to an LED lighting fixture technology in which a strip-shaped LED module is mounted on the outer circumferential surface of a mounting member to irradiate light in various directions and angles and to move air through a moving space inside the mounting member to effectively cool the LED module do.

10: Socket section 11: Wires
20: LED module 21: LED
30: mounting member 31: moving space
32: engaging projection 40: cap
41: spherical portion 42:
43: protrusion 44: through hole
45: engaging portion 46: engaging groove
47: latching jaw 50: heat dissipating means
51: heat sink fin 52: heat sink material
53: thermoelectric element 60: blowing means
61: motor 62: fan

Claims (10)

A socket portion coupled to the socket for the illuminator,
An LED module formed in a strip shape and provided with a plurality of LEDs,
An installation member in which a moving space in which air moves is formed and the LED module is installed on an outer circumferential surface thereof;
And a cap for shielding the outside of the installation member. The method according to claim 1,
And heat dissipating means for dissipating heat generated during a light emitting operation of the LED module. 3. The method of claim 2,
Wherein the heat dissipating means includes a heat dissipating fin installed on an inner circumferential surface of the mounting member and radiating heat generated in the LED module,
Wherein the heat radiating fins are arranged parallel to each other in a horizontal or vertical direction, or a plurality of heat sinks are installed radially outward from the center. 3. The method of claim 2,
A plurality of LEDs are provided at predetermined intervals on the upper surface of the LED module,
Wherein an adhesive layer is provided on a lower surface of the LED module so as to be attachable to the mounting member. 3. The method of claim 2,
The mounting member is made of a material having thermal conductivity,
Wherein an outer circumferential surface of the mounting member is curved or concave. 3. The apparatus of claim 2,
A spherical portion having an upper surface and a lower surface opened to be coupled to upper and lower ends of the mounting member and formed into a spherical shape,
And a connection portion connecting the spherical portion and the socket portion. The method according to claim 6,
A plurality of protrusions for diffusing light emitted from the LED module are provided on an inner circumferential surface of the spherical portion,
And at least one through hole is formed in the connection portion. The method according to claim 6,
Wherein the spherical portion is manufactured to have a light transmittance of 88 to 95%. 3. The method of claim 2,
Wherein the heat dissipating means includes at least one thermoelectric element. 10. The method according to any one of claims 1 to 9,
Further comprising a blowing means for supplying outside air to the moving space,
Wherein the blowing means includes a blowing fan installed in a lower portion of the socket portion or inside the mounting member, and a driving motor for providing a driving force to the blowing fan.

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