KR101495677B1 - Rotary Screwed type LED illumination apparatus of being rotated - Google Patents

Abstract

The present invention relates to a rotary screw coupling type LED lighting apparatus, and more specifically, to a rotary screw coupling type LED lighting apparatus equipped with a heat pipe having improved heat transfer ratio. The present invention includes: an upper housing (40) which includes a connection socket (5) which is conned to a commercial AC power in a screw coupling type, an internal socket (10) which is formed on a side of a socket port (11), an upper fixing cap (20) having multiple rotation control protrusions (22) for the internal socket (10) to be inserted into and being protruded in the internal lower side to control rotation at a predetermined angle, and rotation disk (30) to be installed on the lower side of the upper fixing cap (20); and a lower housing (70) which includes a flat heat radiating plate (50) to be installed on the lower side of the upper fixing cap (20), a heat radiating frame (60) having multiple heat radiating ribs (61) to widen the heat radiating area, and a lower fixing cap (65) to be combined with the lower side of the heat radiating plate (50) and the heat radiating frame (60).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rotary screw-

The present invention relates to a rotary screw-type LED lighting device, and more particularly, to a rotary screw-type LED lighting device which is rotated within a predetermined angle in a state where it is connected to a connection socket so as to be screw- And a heat pipe is provided between the heat radiating frame and the heat radiating plate for receiving heat directly from the heat radiating frame and the heat radiating plate, the heat radiating frame including a plurality of heat radiating ribs having a large heat radiating area, To a rotatable screw-engaging LED lighting device which is easy to control the angle of incidence of LED elements and has excellent heat dissipation efficiency.

In general, fluorescent lamps and incandescent lamps have been mainly used as lighting fixtures. Recently, the price of LED type lighting fixtures with high power use efficiency has been lowered, and they are widely used in general homes and school offices.

On the other hand, the conventional incandescent bulb is directly connected to an AC AC power source, and the filament is heated to generate light by being supplied with power. Therefore, a separate ballast or DC power supply is not required, However, due to the recent development of SMPS that supplies power to LED devices according to recent technological developments, many screw-type LED lighting lamps which are directly connected to the AC AC power socket and supplied with power are being developed.

However, LEDs (Light Emitting Diodes), which are smaller than conventional light sources and have a long life span, have high energy efficiency because they are directly converted to light energy, There is a problem that the LED is used less than its lifetime or frequent breakage occurs due to heat generated at the time of light emission.

As an example of a prior art in which the above problems are solved, an LED lighting apparatus which is filed and registered by the present applicant is disclosed in Korean Registration Practice No. 20-0453748 (May 18, 2011).

As shown in FIG. 1, the conventional technique includes a light source unit in which LEDs are arrayed and mounted on a PCB, a heat radiation frame attached to a lower surface of the light source unit, a light transmission cover fitted to the heat radiation frame, And a side cap which is connected to one side of the heat radiating frame and which has a socket terminal formed on the outer circumferential surface thereof with a spiral wire, the LED lighting apparatus comprising:

And a rotating disk is integrally connected to one side of the heat radiating frame in a direction in which the side cap is connected. The rotating disk is integrally connected to the opening of the side cap so that the rotating disk and the fixed disk are in contact with each other. And is rotatable at an angle with respect to the side cap.

A plurality of radiating ribs are formed on the upper surface of the radiating frame in a direction perpendicular to the upper surface of the radiating frame. A space for air passage is provided between the radiating ribs. A fan Respectively.

However, in the related art, there is a problem that the side cap and the rotation disc are integrally rotated in correspondence to the heat dissipation frame, and the power supply line connected to the substrate of the light source unit is often broken by rotation.

In addition, since a fan for injecting outside air needs to be provided at the central portion of the heat dissipation frame of the prior art, extra power for driving the fan is consumed, and when the fan is rotated for a long time, There is a problem that noise is easily generated due to wear.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional art as described above, and it is an object of the present invention to provide a screw connection type socket which is generally connected to a power socket to which an incandescent lamp is connected, A heat dissipating frame having a plurality of heat dissipating ribs connected to the power socket and easily rotated within a predetermined angle and having a large heat dissipating area, A screw type heat exchanger having a high heat dissipation efficiency and a heat pipe provided between the heat dissipating plate and the heat dissipating frame for directly receiving the heat of the LED substrate and having a heat pipe, And to provide an LED lighting device.

According to an aspect of the present invention, there is provided a rotating screw-type LED lighting device including a connection socket connected to a commercial AC power source in a screw- A plurality of rotation regulating protrusions protruding downward from the inner surface of the inner socket so as to adjust the rotation of the inner socket to a predetermined angle at an outer periphery of the rotating hole, And a rotary disk provided at a lower portion of the upper fixing cap and coupled to a lower end of the inner socket and having a rotation adjusting end contacting with the rotation adjusting projection at an upper end outer periphery thereof, A housing;

A flat plate-shaped heat dissipating plate provided at a lower side of the upper fixed cap and having an engaging hole drilled to be coupled with an LED substrate having a plurality of LEDs mounted thereon, and a heat radiating plate extending from the side end of the heat dissipating plate, And a lower housing having a lower fixing cap coupled to a lower portion of the heat dissipation plate and the heat dissipation frame, wherein the heat dissipation frame has a plurality of heat dissipating ribs,

The lower housing is provided with a plurality of U-shaped heat pipes connecting the heat radiating plate and the lower fixing cap to the heat radiating frame so as to improve heat transfer efficiency.

Wherein the rotary disk is provided with a rotation stopping protrusion for preventing over rotation of 360 degrees or more, and the upper fixing cap is provided with a rotation stopping groove for preventing over rotation from coming into contact with the rotation stopping projection, To prevent twisting of a power line connected between the power source and the power source.

A screw fastening step for screwing the inner fastening step into a lower portion of the inner socket is provided at an upper center of the rotary disk to extend inward and has a stepped inner fastening end, And the strength at which the upper fixed cap and the rotating disk are brought into contact with each other is variable.

The heat radiating frame is provided with a frame axis so that the heat radiating frames are connected to each other at a position corresponding to the heat radiating plate.

And a power line connecting hole is provided at the center of the inner socket and the rotating disk so that a power line extending from the connecting socket passes through the inner socket.

The heat dissipation plate may include a power supply at an upper side thereof so that the power supply line is connected to the heat dissipation plate.

Thus, the rotating screw-type LED lighting apparatus according to the present invention has the following effects.

First, a rotation stopping protrusion is provided on the upper fixing cap so that the connection socket connected to the commercial AC power source and the inner socket fixed to the connection socket are not rotated, so that the power source line extending from the connection socket is rotated Disconnection is prevented,

Second, the lower housing is provided with a plurality of U-shaped heat pipes connecting the heat radiating plate and the lower fixing cap to the heat radiating frame, so that the heat radiation can be stably operated without additional power supply,

Third, since the screw fastening end is provided at the lower portion of the inner socket to adjust the rotation sensitivity of the rotating disk rotating in contact with the upper fixed cap, when the screw fastening end is loosened or tightened, So that it is easy to adjust the projection angle of the rotatable screw-type LED lighting apparatus,

Fourth, the maintenance of the stable power connection state is advantageous economically by increasing the service life of the rotating screw-type LED lighting device by the rotation of the connection socket and the inner socket which are prevented from over-rotation.

1 is a perspective view of a conventional screw-type LED lighting device,
FIG. 2 is an exploded perspective view of a rotatable screw-type LED lighting apparatus according to the present invention,
3 is a perspective view of a lower housing of the LED lighting apparatus according to the present invention,
4 is a perspective view and a cross-sectional view illustrating an upper housing of the LED lighting apparatus according to the present invention,
5 is a perspective view showing the operation of the LED lighting apparatus according to the present invention,
6 is a perspective view of an LED lighting apparatus according to another embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the rotatable screw-type LED lighting apparatus according to the present invention includes an upper housing 40 and a lower housing 70.

The upper housing 40 includes a connection socket 5 connected to a commercial AC power source in a screw-fitting manner, and an upper housing 40 fixed to the inside of the connection socket 5, And a rotation hole (21) formed at the center so that the inner socket (10) is rotatably inserted into the rotation hole (21) and the rotation of the inner socket (10) An upper fixing cap 20 provided with a plurality of rotation adjusting protrusions 22 protruding downward from the inner surface of the upper fixing cap 20 so as to be adjusted by the upper fixing cap 20 and coupled to a lower end of the inner socket 10 And a rotation disc 30 having a rotation adjusting end 31 for contacting with the rotation adjusting protrusion 22 to adjust the rotation.

The lower housing 70 is provided at a lower side of the upper fixing cap 20 and is provided with a flat plate heat dissipation plate 50 having a coupling hole 51 penetrating the LED substrate P, A heat dissipating frame 60 having a plate 50 and a plurality of heat dissipating ribs 61 extending from side end portions of the heat dissipating plate 50 to widen the heat dissipation area for heat dissipation, And a lower fixing cap 65 coupled to a lower portion of the heat dissipating frame 60 is provided.

The lower housing 70 is provided with a plurality of U-shaped heat pipes 71 for connecting the heat radiating plate 50 and the lower fixing cap 65 to the heat radiating frame 60 to increase the heat transfer efficiency .

2, the 'U' shaped heat pipe 71 is concentrically disposed on the heat dissipating plate 50 directly receiving heat and is extended to the heat dissipating frame 60 It is connected.

Meanwhile, the connection socket 5 and the inner socket 10 are integrally rotated so as to face the upper fixed cap 20. That is, the socket fixing end 11 is screwed from the outside to connect the connection socket 5 and the internal socket 10.

4, the rotation disc 30 is provided with a rotation stopping protrusion 32 for preventing over rotation of 360 degrees or more. The rotation stopping protrusion 32 and the rotation stopping protrusion 32 are formed in the upper fixing cap 20, The rotation stop groove 23 is formed to prevent rotation of the power source line L connected between the connection socket 5 and the LED substrate P.

That is, the rotary disk 30 is rotatable within 360 degrees with respect to the rotation stop groove 23 by abutting the rotation stopping projections 32 and the rotation stopping grooves 23 with each other.

The lower end of the inner socket 10 is provided with a screw fastening step for fastening the inner coupling end 33 to the lower end of the rotary disk 30, The strength with which the upper fixing cap 20 and the rotary disk 30 are brought into contact with each other can be adjusted according to the strength of tightening the screw tightening step 12 by screws.

When the screw fastening end 12 is strongly tightened by screws, a strong screw pressure is applied to the internal coupling end 33 so that the rotation adjusting end 31 of the rotary disk 30 is rotated by the rotation adjusting projections 22 So that it is prevented from being arbitrarily rotated without an external force. Therefore, it is preferable that the screw tightening step 12 is appropriately tightened so that the rotation and the state maintenance are appropriately maintained.

The frame axis 62 is provided in the heat dissipation frame 60 so that the heat dissipation frame 60 is connected to the heat dissipation plate 50 at a position corresponding to the heat dissipation plate 50, The interval between the frames 60 is kept constant.

A power line connecting hole 41 is formed in the center of the inner socket 10 and the rotary disc 30 so that a power line L extending from the connecting socket 5 passes therethrough, The power supply line L extending through the hole 41 smoothly supplies power to the LED substrate P through the power supply hole 52 provided in the heat dissipation plate 50.

Meanwhile, as shown in FIG. 6, according to another embodiment of the present invention, the LED substrate P is provided as a high-brightness illumination LED, and may be configured as one or more sphere. At this time, the heat dissipation plate 50 and the LED for illumination are preferably fixed to each other through an adhesive member.

In addition, it is preferable that a light emitting cover (not shown) is provided on the outside of the LED for illumination so that the emitted light of the LED for illumination is transmitted and protected in an external contamination environment.

The operation of the rotating screw-type LED lighting apparatus according to the present invention having the above-described structure will be described below.

As shown in FIG. 5, the rotatable screw-type LED lighting apparatus of the present invention is connected to a power socket for supplying commercial AC power and projects LED light. When the LED socket is connected to the power socket, The inner socket 10 is rotated integrally to adjust the projection angle of the LED light.

At this time, when the rotation stopping projection 32 of the rotary disk 30 is rotated by the rotation of the upper fixing cap 20 so that the connection socket 5 and the inner socket 10 do not exceed a maximum of 360 degrees when rotated by an external rotational force, The rotation of the connecting socket 5 and the LED substrate P can be prevented from being damaged.

3, the lower housing 70 is a main heat dissipating means, and a heat radiating plate 50, which is directly connected to the LED substrate P, The heat generated by the LED elements of the light source P is radiated.

That is, the lower housing 70 includes the heat dissipating plate 50 that directly contacts the LED substrate P and radiates heat, a heat dissipating frame 60 that secondarily dissipates heat transmitted from the heat dissipating plate 50, .

The plurality of heat dissipating ribs 61 are provided in the heat dissipating frame 60 so as to have a large heat dissipating area so that the heat dissipating ribs 61 can be driven without a heat dissipating means operated by a power source such as a heat dissipating fan.

A U-shaped heat pipe 71 is provided in the lower housing 70 so that heat can be stably maintained, so that the heat of the heat radiating plate 50 is transferred to the heat radiating frame 60 And the heat is released.

4, a stepped inner coupling end 33 is provided at the center of the upper end of the rotary disk 30, and a lower end of the inner coupling end 33 And the screw fastening end 12 adjusts the strength with which the screw fastening end 12 contacts each other by tightening a part of the inner fastening end 33, The inner socket 5 and the inner socket 10 are rotated.

At this time, the rotation regulating end 31 of the rotary disk 30 and the rotation regulating projection 22 of the upper fixing cap 20 are rotated in contact with each other, and the rotating sound is generated when the rotation regulating projection 22 is rotated. The rotation adjusting end 31 and the rotation adjusting protrusion 22 are rotated in contact with each other to adjust the projection angle of the LED light.

The socket fixing end 11 is recognized as a reference point indicating the degree of rotation of the connection socket 5 and the inner socket 10 from the outside. That is, the socket is fixedly mounted on the socket fixing end 11 so as to be rotatable about 180 degrees, which prevents the socket from being rotated by excessive force, and is rotated within a predetermined maximum rotation angle.

A frame axis 62 is provided at one side of the heat dissipating frame 60 at a position corresponding to the heat dissipating plate 50 to fix the distance between the heat dissipating frame 60 and the lower housing 70, .

The heat dissipation plate 50 is provided with a coupling hole 51 for fixing the LED substrate P and a power source hole 52 through which the power source line L is connected so that the electric wire is exposed to the outside So that the outward appearance is improved and the stable connection between the LED substrate P and the power line L is achieved.

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 in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

5: connecting socket 10: inner socket
11: socket fixing end 12: screw tightening end
20: upper fixed cap 21:
22: rotation regulating projection 23: rotation stopping groove
30: rotating disc 31: rotation adjusting stage
32: rotation stop projection 33: inner coupling end
40: upper housing 41: power line connecting hole
50: heat radiating plate 51: engaging hole
52: power supply hole 60: heat radiation frame
61: heat radiating rib 62: frame shaft center
65: lower fixing cap 70: lower housing
71: Heat pipe
P: LED board L: Power line

Claims (6)

An inner socket (10) having a socket fixing end (11) fixed to the inside of the connection socket (5) so as to be fixed therein, a connection socket (5) (21) which is perforated at the center so as to be rotatable with the inner socket (10), and a plurality of protrusions (21) protruding downward from the inner surface so as to adjust the rotation of the inner socket (10) The upper fixing cap 20 is provided at a lower portion of the upper fixing cap 20 and is coupled to the lower end of the inner socket 10 and has a rotation regulating projection 22 An upper housing 40 made of a rotary disk 30 having a rotation adjusting end 31 for adjusting the rotation thereof in contact with the upper housing 40;
A heat dissipation plate 50 having a plate shape and provided with a coupling hole 51 provided at a lower side of the upper fixing cap 20 and perforated to be coupled with an LED substrate P having a plurality of LEDs mounted thereon, A heat dissipating frame 60 extending from the side end of the heat dissipating plate 50 and having a plurality of heat dissipating ribs 61 for widening the heat dissipating area so as to radiate heat, And a lower housing 70 provided with a lower fixed cap 65,
The lower housing 70 is provided with a plurality of U-shaped heat pipes 71 connecting the heat radiating plate 50 and the lower fixing cap 65 to the heat radiating frame 60 so as to improve the heat transfer efficiency Shaped LED lighting device. The method according to claim 1,
The rotary disk 30 is provided with a rotation stopping projection 32 for preventing over rotation of 360 degrees or more. The upper fixing cap 20 is provided with a rotation stopper 32 for contacting the rotation stopping projection 32, A groove 23 is provided,
(L) connected between the connection socket (5) and the LED substrate (P) is prevented from being twisted. The method according to claim 1,
The lower end of the inner socket 10 is provided with a screw fastening end 12 for tightening the inner fastening end 33 with screws ),
Wherein an intensity of contact between the upper fixing cap (20) and the rotary disk (30) varies according to the strength of screwing the screw tightening step (12). The method according to claim 1,
Wherein the heat dissipating frame (60) is provided with a frame axis (62) so that the heat dissipating frame (60) is connected to the heat dissipating plate (50) . The method according to claim 1,
Wherein a power line connecting hole (41) is provided at a center of the inner socket (10) and the rotary disc (30) so that a power line (L) extending from the connecting socket (5) Combined LED lighting device. 6. The method of claim 5,
Wherein the heat dissipation plate (50) is provided with a power supply hole (52) on an upper side of the power supply line (L).

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