KR101598906B1 - The LED lighting apparatus - Google Patents

Abstract

The present invention constitutes an LED circuit which can be directly connected to a commercial power source of AC 220V without using a fluorescent lamp apparatus, and in particular, a heat radiation frame and a diffusion cover used for heat generation and diffusion of an LED are composed of a cylinder, The present invention relates to an LED lighting device which is easily fixed to a ceiling or a wall surface and is rotated while receiving elasticity in the hollow tube, thereby facilitating adjustment of the angle of illumination of the LED lamp.
To this end, the present invention is characterized in that a heat dissipating frame having a semicircular cross section is formed to be a circular tube such as a fluorescent lamp, a diffusion cover having a semicircular cross section covering an upper part of the heat dissipating frame, Wherein the heat radiation frame and the diffusion cover are provided at both ends of the heat radiation frame and the diffusion cover with fixing means having a hollow tube in which the heat radiation frame and the diffusion cover are inserted, The fixing means is provided with a fixing piece to be fastened to the ceiling or the wall surface with a screw, and the hollow tube is guided so that the heat radiation frame and the diffusion cover are elastically rotated in a fitted state.

Description

[0001] The present invention relates to a LED lighting apparatus,

The present invention relates to an LED lighting device, and more particularly, to a LED lighting device in which a plurality of LEDs (light emitting diodes) are arranged in the form of a fluorescent lamp so as to form a fluorescent lamp, And can be easily fixed and rotated. In addition, the present invention relates to an LED lighting device in which a circuit is constructed so as to realize maximum brightness and efficiency while maintaining the LED power at a level of 70% to 80%.

In general, low-power and high-brightness LED lamps are being used to replace fluorescent lamps. In order to minimize the volume of the LED lamp, a surface mount device (SMD) is used. The LED device is soldered while being placed on a circuit board without soldering the terminal of the LED device through the hole of the circuit board. In recent years, a heat-radiating frame has been fabricated to be straight tube like a fluorescent lamp, an LED module is installed inside the heat-radiating frame, and an LED lamp has been developed in the form of a diffusion cover for protecting the LED module and scattering light.

Conventional Patent Registration Nos. 0951873, 1026794, and 2013-0055466 disclose that a circuit board on which a large number of LEDs are mounted is adhered to a surface of a heat-radiating frame made of a rod-like tube such as a fluorescent lamp, And both ends of the heat dissipating frame and the diffusion cover are provided with coupling means for connecting the heat dissipating frame and the diffusion cover to the socket of the luminaire in which the fluorescent lamp is used.

The coupling means is a G16 base type and includes a terminal cap having a pin-type terminal to be inserted into a socket of the luminaire, and a fixing cap for fixing the terminal cap to the heat radiation frame and the diffusion cover. At this time, the terminal cap and the fixed cap are rotatably coupled. When the LED lamp is coupled to the socket of the fluorescent lamp apparatus, the direction of the diffusion cover can be switched, so that the light can be adjusted in a desired direction.

However, since a terminal cap and a fixed cap are required as a coupling means, the number of components increases and the number of assemblies increases, resulting in a decrease in productivity. Particularly, since the terminal cap is manufactured for a fluorescent lamp using a fluorescent lamp, There was a technical drawback that could not be used.

Japanese Patent Application Laid-Open No. 2011-0105263 discloses a refrigerator comprising a heat-radiating frame having a rail formed on an outer surface thereof, a cradle rotating part fitted to the rail, and a cradle fixing part for rotating the cradle rotating part and fixing the heat- will be. This technique is a technology that can easily be separated because the heat dissipation frame is fitted to the rotating part of the cradle by a rail type, and the irradiation angle of the LED lamp can be adjusted by rotation.

However, since a separate rail is required to be formed in the heat radiating frame, the structure is complicated, and there is a disadvantage that a dual rotation unit and a cradle fixing unit must be provided.

Patent No. 0987391 discloses a technique in which a side cover is provided on both sides of a heat dissipating frame and a bracket assembled to a screw shaft is provided on the side cover so that an LED lamp can be rotated. However, since the side cover and the bracket are required to be double, there is a disadvantage in that the number of parts is increased and the number of assembly is increased.

Patent No. 0903305 discloses a structure in which a hollow shaft bracket is fitted on both sides of a heat radiating frame, and a rotating bracket is double-fitted to the shaft bracket. When the rotation bracket is fixed to the ceiling, the radiating frame freely rotates through the shaft bracket, so that the angle of illumination of the LED lamp can be adjusted.

However, a double shaft bracket and a rotating bracket are required, and the heat radiating frame is clogged by the rotating bracket and the shaft bracket, so that the heat is difficult to be easily diverted to the outside.

It is an object of the present invention to provide an LED circuit which can be directly connected to an AC 220V commercial power source without using a fluorescent lamp, And the diffusion cover are combined with each other to form a cylinder and are fitted to a single fixing means in the form of a hollow tube so that it is easily fixed to the ceiling or the wall surface and is rotated while receiving elasticity inside the hollow tube. And a lighting device.

Another object of the present invention is to provide an operation space in which an elastic piece and an elastic piece for elastically fixing the heat dissipating frame and the diffusion cover are flowed on the inner circumferential surface of the hollow tube of the fixing means, Thereby preventing an overheating of the LED. In addition, it is an object of the present invention to provide an LED lighting device having a circuit for realizing maximum brightness and efficiency while maintaining the power of the LED at a level of 70% to 80%.

To this end, the present invention is characterized in that a heat dissipating frame having a semicircular cross section is formed to be a circular tube such as a fluorescent lamp, a diffusion cover having a semicircular cross section covering an upper part of the heat dissipating frame, Wherein the heat radiation frame and the diffusion cover are provided at both ends of the heat radiation frame and the diffusion cover with fixing means having a hollow tube in which the heat radiation frame and the diffusion cover are inserted, The fixing means is provided with a fixing piece to be fastened to the ceiling or the wall surface with a screw, and the hollow tube is guided so that the heat radiation frame and the diffusion cover are elastically rotated in a fitted state.

According to the present invention, a plurality of LEDs are arranged in a rod shape to constitute a circuit board, and the heat radiation frame to which the circuit board is adhered and fixed and the diffusion cover covering the upper part of the heat radiation frame are formed into a cylindrical shape, Respectively. In addition, a single fixing means is provided at both ends of the heat dissipating frame and the diffusion cover. The fixing means includes a pipe-shaped hollow tube in which both ends of the heat dissipating frame and the diffusion cover are inserted. At this time, the hollow tube is provided with an elastic piece and an operating space in which the heat dissipating frame and the diffusion cover can be elastically assembled, so that the LED lamp fixed to the ceiling or the wall is prevented from idling or the irradiation angle is not arbitrarily changed.

Further, if the heat dissipating frame and the diffusion cover are rotated inside the hollow tube by a force equal to or greater than the elastic force of the elastic pieces, the heat radiation frame and the diffusion cover can be adjusted in the forward and reverse directions by the fixing means. In particular, the inner circumferential surface of the hollow tube is provided with a working space in which the elastic piece can receive the elastic force, and the working space communicates with the inside of the diffusion cover, so that room air is introduced into the diffusion cover to substantially prevent the overheat of the LED There is also.

In addition, the present invention adopts a circuit that requires power of 24W using 102W of LEDs at a power of 10W, but lowers the power to 17.7W at a level of 70% to 80%, thereby achieving a brightness of 1681.6lm and a brightness of 95.0lm / W Efficiency. Conventionally, even when 120 LEDs are used, the brightness is 1474.6 lm and the efficiency is 84.3 lm / W, which is less practical than the present invention.

1 is an exploded perspective view of a lighting apparatus according to an embodiment of the present invention;
2 is a front sectional view of a lighting apparatus according to an embodiment of the present invention
3 is a side cross-sectional view of the illumination device of one embodiment of the present invention
4 is a circuit configuration diagram of a lighting apparatus according to an embodiment of the present invention
Fig. 5 is a diagram showing the LED arrangement of the lighting device of the embodiment of the present invention

1 to 3, the lighting apparatus of the embodiment of the present invention includes a heat dissipating frame 10 made of aluminum and having a semicircular arc-shaped cross section and excellent in heat dissipation, And a circuit board (30) attached to the surface of the heat radiation frame (10). In the circuit board 30, a plurality of LEDs 31 are soldered in series and in parallel by a surface mounting technique.

A fixing means 40 is provided at both ends of the heat dissipating frame 10 and the diffusion cover 20 which are coupled to each other to maintain a cylindrical shape. The fixing means 40 is provided with a hollow tube 41 into which the heat dissipating frame 10 and the diffusion cover 20 are inserted and is fixed to the bottom of each hollow tube 41 by a screw And a piece 44 is formed.

A plurality of elastic pieces 42 are radially provided on the inner circumferential surface of the hollow tube 41. The elastic pieces 42 are separated from the inner circumferential surface of the hollow tube 41 by a small amount And the elastic pieces 42 are formed of an arc-shaped flat plate that can be in close contact with the outer circumferential surface of the heat dissipating frame 10 and the diffusion cover 20 so that the heat dissipating frame 10 and the diffusion And is urged toward the cover 20.

A side wall 41a is provided at one end of the hollow tube 41 to prevent the LED light from flowing out to the outside. The hollow tube 41 is provided with the heat radiating frame 10 and the diffusion cover 20, (45) for separating the end of the side wall (41a) from the end of the side wall (41a). The end of the diffusion cover 20 is not blocked by the gap retaining port 45 and is connected to the operation space 43 and communicates with the outside air.

A plurality of heat dissipation fins 11 are provided at equal intervals on the outer circumferential surface of the heat dissipation frame 10, and the ends of the heat dissipation fins 11 are formed to have different elevations so as to have an arc shape. The outlet 41b of the electric wire 32 for inputting power to the LED 31 and the circuit board 30 is formed in the sidewall 41a of the hollow tube 41 in the fixing means 40. [

When the heat radiating frame 10 having a semicircular cross section and the diffusing cover 20 having a semicircular cross section are combined with each other, an illuminating device of the embodiment of the present invention configured as described above is formed into a cylinder and an introductory lamp such as a fluorescent lamp is made.

The fixing means 40 is simply assembled to both ends of the heat dissipating frame 10 and the diffusion cover 20 coupled to each other. The fixing means 40 is provided with a hollow tube 41 having one side thereof And the ends of the heat dissipating frame 10 and the diffusion cover 20 are inserted into the hollow tube 41. At this time, the inner circumferential surface of the hollow tube 41 is provided with elastic pieces 42 having elasticity to be widened toward the center of the hollow tube 41. The elastic pieces 42 are finely spread, The fixing means 40 is tightly fixed to the heat dissipating frame 10 and the diffusion cover 20 by the restoring force of the elastic pieces 42. [

When the heat dissipating frame 10 and the diffusion cover 20 are fitted into the hollow tube 41, the end of the heat dissipating frame 10 and the diffusion cover 20 are separated by the gap retaining hole 45 and open at the side wall 41a of the hollow tube 41. At this time, the inside of the heat dissipating frame 10 and the diffusion cover 20 is not clogged by the side wall of the hollow tube 41 and communicates with the outside through the operation space 43. Accordingly, there is an advantage that heat due to lighting of the LED 31 is easily radiated to the outside, and overheating is prevented.

When the fixing member 44 of the fixing means 40 is fastened and fixed to the ceiling or the wall surface with screws and then the heat dissipating frame 10 and the diffusion cover 20 are rotated in a desired direction, Since the frame 10 and the diffusion cover 20 are easily rotated, adjustment of the irradiation angle of the LED 31 is convenient.

4 to 5 are circuit configuration diagrams and LED array views of the lighting device of the embodiment of the present invention. The lighting device of the embodiment of the present invention requires power of 24 W using 102 LEDs of 0.2 W, To reduce power to 17.7W to 80%. In FIG. 4, when AC power of 220 V is directly inputted, the electric power suitable for using the 6V LED through the fuse and the rectifying part 51 is input to the LED driving means 50.

The LED driving means 50 is provided with an internal power supply block 52 for inputting power required for driving the LED to the current control block 54. The reference voltage setting portion 53 sets a voltage required for operation of the LED in advance A signal is input to the current control block 54 so that an overvoltage is not applied.

A plurality of LEDs are modularized in a serial or parallel combination. The first module 56a, the second module 56b, and the third module 56c are arranged in parallel on the circuit board 30 such that two LEDs are connected in parallel to each other so that 60 LEDs are arranged in a row . The fourth module 56d is arranged so that three 42 LEDs are connected in parallel and arranged side by side on the circuit board 30. The LEDs of the first, second, third, and fourth modules 56a, 56b, 56c, and 56d are 102 in total, and are arranged in a line on the circuit board 30.

The third module 56c and the fourth module 56d are connected to the third switching device 55c and the fourth switching device 55d in the LED driving means 50 and these switching devices are connected to the internal resistor 57b The reference voltage set by the reference voltage is maintained. The first module 56a and the second module 56b are connected to the first switching device 55a and the second switching device 55b inside the LED driving means 50 while the external resistor 57a is connected to the first switching device 55a and the second switching device 55b, The reference power is adjusted. Using 102 LEDs of 0.2W in calculation, 24W power is required, but the reference power is lowered by about 70% ~ 80% by the external resistance to about 17.7W.

Even if it is adjusted in this way, since 6V LED is used, it is possible to increase the efficiency by reducing the current deviation compared with the conventional 3V LED. Even if the reference power is adjusted by the external resistor 57a as described above, the brightness of 1681.6 lm and the efficiency of 95.0 lm / W can be achieved.

Compared with conventional LEDs of 120V and a reference power of 70% ~ 80%, which is adjusted to about 17.5W, the brightness of 1474.6lm and the efficiency of 84.3lm / W are obtained. There is a significant improvement in brightness and efficiency while reducing the number of dogs.

10: heat radiation frame 20: diffusion cover
30: circuit board 31: LED
40: fixing means 41: hollow tube
42: elastic piece 43: working space
44: Fixture 50: LED driving means

Claims (4)

delete A heat dissipation frame having a semicircular cross section to be a circular tube such as a fluorescent lamp, a diffusion cover having a semicircular cross section covering an upper portion of the heat dissipation frame, and a circuit board on which a plurality of LEDs are surface- Wherein the heat dissipating frame and the diffusion cover are provided at both ends of the heat dissipating frame and the diffusion cover with fixing means having a hollow tube in which the heat dissipating frame and the diffusion cover are inserted, Wherein the heat radiating frame and the diffusion cover are guided so as to be elastically rotated in a fitted state,
Wherein a plurality of elastic pieces are radially provided on the inner circumferential surface of the hollow tube of the fixing means so as to be in close contact with the outer circumferential surface of the heat dissipating frame and the diffusion cover while receiving elastic force toward the center of the hollow tube,
Wherein an operating space is provided between the elastic pieces and the inner circumferential surface of the hollow tube so that the elastic pieces can swing. 3. The method of claim 2,
A sidewall, which is closed at one side thereof, is provided inside the hollow tube of the fixing means to prevent the light of the LED from being emitted to the outside,
Wherein the side walls are provided with spacing openings for separating the ends of the heat radiation frame and the diffusion cover from the side walls so that the heat of the LEDs is radiated to the outside along the operation space. delete

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