KR100922946B1 - A light bulb type polyhedric led lamp - Google Patents

Abstract

PURPOSE: A light bulb type polyhedric LED lamp is provided to a user to exchange a socket with a conventional since the socket of the device is same the conventional socket. CONSTITUTION: A light bulb type polyhedric LED lamp is composed of an LED luminous body(100), a heat dissipation body(200), a divergent lens(300), a socket base(400), a switching mode power supply part, and an insulator. The LED luminous body is composed of LED light source and a plurality of PCB piece substrate, and the heat dissipation body is combined with the one side of the LED luminous body. The heat dissipation body includes a heat pipe, a first heat sink portion, and a second heat sink portion. The divergent lens is combined with the one side of the heat dissipation body to be detachable. The divergent lens surrounds the LED luminous body, and it includes a light-diffusing agent diffusing the light from at least one LED.

Description

Bulb-type polyhedral LED lamps {A LIGHT BULB TYPE POLYHEDRIC LED LAMP}

The present invention relates to a bulb-type polyhedral LED lamp, and more particularly to a bulb-type polyhedral LED lamp that can irradiate light in a wider direction by the LED attached to the polygonal cube.

In the lighting occupied by incandescent lamps, fluorescent lamps and halogen lamps, most lighting companies are rapidly increasing their market share by expanding the launch of LED applications.

Recently, a bulb-type LED lamp that can be replaced with an incandescent lamp without a dazzle or short circuit of a filament like a conventional light source has been released.

1 is a longitudinal cross-sectional view of an LED incandescent lamp according to the prior art Korean Patent No. 10-0759803.

As shown in FIG. 1, an LED incandescent lamp according to the prior art is manufactured in an incandescent lamp type by covering a sphere made of glass or polycarbonate with a light source including a plurality of LEDs and installing an electrode base.

The LED incandescent lamp according to the prior art is the same as the incandescent bulb only the appearance of the glass bulb exposed to the outside, the substrate itself is fixed to the substrate is formed in a plane area of the light irradiated from the LED element is the upper side of the LED element, There is a problem of being limited only to an area of about 120 to 160 degrees upward. Therefore, there is a problem that cannot be revealed in more than 160 areas.

In addition, there is a limit in sufficiently dissipating a large amount of heat generated by integrating a high-density LED device, there is a high risk of damage to the LED device due to the heat accompanying the light emission.

Accordingly, the problem to be solved by the present invention is to provide a bulb-type polyhedral LED lamp that can be irradiated to the blind area of the conventional LED lamp by placing the LED on the surface of the polygonal cube close to the sphere. .

Another technical problem to be solved by the present invention is to provide a bulb-type polyhedral LED lamp that can be easily replaced with the existing product in the same way as the conventional socket base.

Another technical problem to be solved by the present invention is to provide a bulb-type polyhedral LED lamp that can obtain the brightness equivalent to the incandescent bulb.

Another technical problem to be solved by the present invention is to provide a bulb-type polyhedral LED lamp that can effectively suppress the temperature rise of the LED substrate.

Technical problem of the present invention is not limited to the technical problems mentioned above, other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, a bulb-type polyhedral LED lamp according to an embodiment of the present invention includes a LED as a light source and a plurality of PCB engraving substrates on which the LEDs are mounted, wherein each PCB engraving substrate has a corner surface. An LED light emitting body interconnected to the edge surface of the other PCB piece substrate to form a polygonal cube, a heat dissipation body coupled to one side of the LED light emitting body to emit heat generated by the LED to the outside, one side of the heat dissipation body A diffuser lens detachably coupled to the LED light emitting body, a socket base detachably coupled to a lower end of the heat dissipation body to be screwed and connected to an external power supply so as to supply driving power to the LED, the heat dissipation body and the It is arranged between the socket base to directly connect AC current supplied through the socket base. A switching mode power supply unit rectified at a constant voltage and supplied to the LED light emitter, and an insulator provided inside the heat dissipation body to insulate the electricity flowing into the socket base from flowing into the heat dissipation body and the switching mode power supply unit. do.

The LED may be a colored LED or an ultraviolet LED.

The LED radiator may be a dodecahedron or a icosahedron.

The LED heat sink may be formed of a 32-sided body in which 20 hexagonal PCB piece substrates and 12 pentagonal PCB substrate pieces are connected to each other in a circular shape.

The PCB piece substrate may further include a first power terminal protruding from the corner surface, and a second power terminal recessed in the corner surface.

The heat dissipation body is formed in a vertical column shape having a hollow, the upper end is in contact with the at least one PCB substrate, the heat pipe is formed at least one heat dissipation hole on the side, the bottom of the heat pipe is coupled to the lower The first heat sink portion is formed with at least one heat dissipation protrusion having a curved shape that gradually increases in diameter, and is coupled to a lower portion of the first heat sink portion, and at least one heat dissipation protrusion is formed on the outer surface thereof in a vertical direction. It may include a second heat sink.

Here, the second heat sink portion has a fastening groove is formed in the upper inner side, the diffusion lens is formed with a stepped lower end may be detachably coupled by the fastening groove of the second heat sink portion and the step of the diffusion lens.

The diffusion lens may further include a light diffusing agent for diffusing light from the at least one LED.

As described above, according to the bulb-type polyhedral LED lamp according to the embodiment of the present invention, the LED light emitter having the shape of a polygonal cube has the effect of irradiating light to the area of the blind spot of the conventional LED lamp.

In addition, according to the bulb-type polyhedral LED lamp according to the embodiment of the present invention, since it is a conventional light bulb type, it can be easily replaced and installed, and thus a wide use in the conventional lighting field can be expected.

In addition, according to the bulb-type polyhedral LED lamp according to an embodiment of the present invention can show a variety of brightness compared to the incandescent bulb and save electrical energy, because it can be used as a light bulb of a long life and a variety of colors for indoor lighting Of course, there is an effect that can be used as a light, decoration, sterilization, insect control of the vessel.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

First, a light bulb-type polyhedral LED lamp according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5.

Figure 2 is a perspective view of the bulb-type polyhedral LED lamp according to an embodiment of the present invention, Figure 3 is an exploded perspective view of the bulb-type polyhedral LED lamp of Figure 2, Figure 4 is an LED light-emitting body according to an embodiment of the present invention Figure 5 is a partial perspective view showing a coupling relationship of, Figure 5 shows a longitudinal cross-sectional view showing the bulb-type polyhedral LED lamp of Figure 2, respectively.

As illustrated in FIGS. 2 to 5, the bulb type polyhedral LED lamp 1 according to the exemplary embodiment of the present invention includes an LED light emitter 100, a heat dissipation body 200, a diffusion lens 300, and a socket base 400. ), The switching mode power supply unit 500 and the insulator 600.

The LED emitter 100 is composed of an LED 110 which is a light source and a plurality of PCB piece substrates 120 on which the LED 110 is fixed.

LED 110 is generally composed of two parts, a power supply terminal and a light emitting unit for connecting to a power source. In this case, illumination light of various colors such as white, red, green, blue, and yellow may be emitted according to the type of LED 110 used. In addition, the LED 110 may be used for germicidal lamps and insects by using ultraviolet LEDs.

PCB piece substrate 120 is installed with at least one LED (110). That is, three LEDs 110 of red (R), green (G), and blue (B) may be mounted in a triangular shape on the PCB piece substrate 120. The PCB engraving substrate 120 may be made of a metal material or an alloy material having excellent thermal conductivity such as copper (Cu) or aluminum (Al). The PCB piece substrate 120 has an electrode pattern (not shown) printed on a side of a power line to be supplied to the LED 110 in a pattern form, and is connected to a power terminal of each LED 110 to the electrode pattern. That is, in order to mount the LED 110 on the PCB piece substrate 120, a method of attaching the LED 110 to the electrode pattern and eutectic bonding using a silver epoxy having good thermal conductivity as a medium. The LED 110 may be bonded onto the electrode pattern by the above method, and thus the detailed description thereof will be omitted. In addition, the PCB engraving substrate 120 may use a metal PCB engraving substrate 120 to have a heat dissipation function by inserting a heat sink in a core form inside the substrate. As such, by using a material having good thermal conductivity, the PCB piece substrate 120 may efficiently transfer heat generated from the LED 110.

In particular, the LED light-emitting body 100 according to the present invention is characterized in that a plurality of PCB piece substrate 120 is combined to form a polygonal cube. To this end, as shown in FIG. 4, the PCB piece substrate 120 includes a pair of a first power terminal 121 protruding from one side surface 120a and a second power terminal 122 recessed. It is structured. In this case, it is preferable that the first power terminal 121 supplies (+) power and the second power terminal 122 supplies (-) power, and the first power terminal 121 has contact surfaces of the dodecahedron. It is preferable to bend by the angle which mutually makes. Therefore, the LED light emitter 100 configured as described above has an advantage in that electricity is energized with each other simply by connecting the power terminals 121 and 122 of neighboring PCB piece substrates 120 so that no separate internal wiring is required.

The method of forming the structure of the polygonal cube with the PCB piece substrate 120 having such a configuration is as follows.

As shown in FIG. 4, the first and second power terminals 121 and 122 formed on the edge surface 120a of one PCB piece substrate 120 and the edge surface 123a of the other PCB piece substrate 123. Accurate coupling with the third and fourth power terminals 124 and 125 formed therein is achieved. Therefore, the LED light emitter 100 may form a dodecahedron as shown in FIG. 3 by simply inserting a plurality of PCB piece substrates 120 and 123 into each other. Therefore, the bulb-shaped polygonal LED lamp 1 of this type can produce an LED lamp that can irradiate light in a region close to a sphere, and thus it is 160 degrees or more except for the socket coupling portion, which is a blind spot of the LED lamp. There is an advantage to the area.

On the other hand, the dodecahedral LED light emitting body 100 is composed of eleven PCB piece substrate 120. In this case, omitting one PCB piece substrate from the dodecahedron is for coupling the heat dissipation body 200 as shown in FIG. 3 through the omitted bottom space. In addition, there is an effect that can release the heat inside the LED light-emitting body 100 through the bottom space of the open one surface.

The heat dissipation body 200 is coupled to one side of the LED light emitter 100 to emit heat generated from the LED 110 to the outside, alloys such as iron and stainless steel or metals having better thermal conductivity than these, for example, copper (Cu) and its alloys, and aluminum (Al) and its alloys can be used. 3 and 5, the heat dissipation body 200 may include a heat pipe 210, a first heat sink 220, and a second heat sink 230 as a configuration for increasing a heat dissipation area. have.

The heat pipe 210 may be manufactured in the form of a thin tube having a hollow portion formed therein, and the upper end thereof may directly contact the bottom surface of the PCB piece substrate 120 to effectively transfer heat generated from the LED 110. In addition, the outer surface of the heat pipe 210 may further include a plurality of heat dissipation holes 212, by the heat dissipation holes 212 is to effectively release heat by natural convection.

The first heat sink 220 is coupled to the lower circumference of the heat pipe 210 to emit heat, and a plurality of heat dissipation protrusions 222 having a curved shape that gradually increase in diameter toward the lower portion thereof are formed in parallel in the vertical direction. . Therefore, the first heat sink 220 emits heat through thermal contact of internal air.

The second heat sink 230 is coupled to the lower side of the first heat sink 220 to dissipate heat. The heat dissipation protrusions in which the inclined surface 232 is formed to the outside and the plurality of heat sinks in parallel to the inclined surface 232 are formed in parallel. 234 releases heat through direct thermal contact with outside air. In addition, the second heat sink 230 has a fastening groove 236 for fixing the diffusion lens 300 on the upper inner surface thereof, and a screw thread for screwing the socket base 500 on the lower outer surface thereof. 238 is formed.

The diffusion lens 300 is a transparent glove surrounding the LED light emitter 100 made of glass, an epoxy resin, or a synthetic resin material such as clear silicon. The shape of the diffusing lens 300 may be any shape including, but not limited to, a conventional bulb type, as well as a sphere, a cylinder, and the like. In addition, the diffusion lens 300 may further include a light diffusing agent having a function of diffusing light, such as silica gel, calcium carbonate, and calcium phosphate. Therefore, the diffusion lens 300 uses all synthetic resins such as PVC, polyethylene, PE, polycarbonate, etc., to which light diffusing agent is added, to emit light emitted from the LEDs 110. Spread. When the amount of the light diffusing agent is about 1 mm thick, about 5.5 PHR (Per Hundred Resin) may be used, but is not limited thereto. The diffusion of the light source by such a light diffusing agent can prevent glare by preventing the bulb-type polyhedral LED lamp 1 from appearing to have a point light source or a plurality of point light sources with a plurality of LEDs 110. And beautifulness when the lighting is turned off can be obtained. In addition, the diffusion lens 300 has a stepped portion 310 protruding from the lower end thereof, and is fitted to the fastening groove 236 of the second heat sink 230 to be detachably coupled to the heat dissipation body 200. Therefore, when the diffusion lens 300 is broken or the internal LED 110 reaches the end of its life, it can be replaced and used.

As shown in FIGS. 2, 3, and 5, the socket base 400 forms the shape of the bulb-type polyhedral LED lamp according to the present invention together with the diffusion lens 300 and the heat dissipation body 200. The socket base 400 is configured to fit within a standard electrical socket so that the conventional incandescent or standard photovoltaic bulb can be replaced directly without the need for any modifications to existing equipment. Socket base 400 also includes screw thread 410 and base pin 420.

The screw thread 410 has a spiral first screw thread 412 formed on the inner side for screwing the second heat sink 230 of the heat pipe 200, and the outer side of the screw thread 410 has a conventional socket (not shown). A spiral second thread 414 that can be detachably fastened is formed.

The base pin 420 is integrally formed at the lower end of the screw thread 410 to be in electrical contact with the AC power of a conventional socket (not shown).

Switching mode power supply (SMPS) 500, as shown in Figure 5, is mounted inside the heat dissipation body 200, the DC input using a semiconductor device such as a power transistor as a switch It is a device to convert the voltage into a square wave voltage and then obtain a controlled DC output voltage through a filter. That is, the AC power supplied from the socket is rectified to DC power and maintained at a constant voltage, thereby supplying DC power to the LED 110 of the LED light emitter 100 and maintaining a constant brightness. In addition, since the switching mode power supply unit 500 operates at a free voltage, the switching mode power supply unit 500 may operate regardless of the power applied to the socket. The lead wire 510 of the switching mode power supply unit 500 passes through the heat pipe 210 of the heat dissipation body 200 and is electrically connected to at least one PCB piece substrate 120 of the LED light emitter 100. .

As shown in FIG. 5, the insulator 600 is disposed inside the heat dissipation body 200, that is, between the second heat sink 230 and the switching mode power supply 500, and the socket base 400. ) Serves to insulate the external electricity that is introduced into the wire does not flow into the heat dissipation body 200 that is a conductor.

The bulb-type polyhedral LED lamp 1 according to the embodiment of the present invention as described above is connected to the power supply through the socket base 400, the socket base 400 to the switching mode power supply unit 500 Connected. As a result, when the LED lamp is used, when the socket base 400 is connected to the socket, the power is supplied to the LED light emitter 100 through the switching mode power supply unit 500 to light the LED 110. In this case, the light may be irradiated in a wide direction to be almost spherical by the plurality of LEDs 110 mounted on the polygonal cube substrate 120.

6 is an exploded view of the LED light-emitting body of the bulb-type polyhedral LED lamp according to an embodiment of the present invention.

As illustrated in FIG. 6, the LED light emitter 100 according to the present embodiment omits one PCB piece substrate 1212 through which the heat dissipation body 200 passes among the dodecahedrons and the remaining eleven PCB piece substrates 1201. At least one LED (1101 ~ 1111) is attached to each of the ~ 1211 can be obtained a light source close to the sphere like a conventional incandescent bulb. This has the effect of irradiating light to the blind spot of the conventional LED lamp.

In addition, when one 60 mA LED (1102 to 1111) is placed on each of the 11 PCB piece substrates 1201 to 1211 of the LED light emitter 100, 60 mA × 11 × DC 3.3V = 2178 ÷ 1000 = 2.178W A bulb type polyhedral LED lamp 1 can be obtained. It has a brightness that can replace the 40W class of conventional incandescent bulbs.

In addition, if one 350 mA LED (1102 to 1111) is placed on the eleven PCB piece substrates 1201 to 1111 of the LED light emitter 100, 350 mA × 11 × DC 3.3V = 12705 ÷ 1000 = 12.705W A bulb type polyhedral LED lamp 1 can be obtained. It has a brightness that can replace the 100W class of the existing incandescent bulb.

Hereinafter, a heat dissipation process of the bulb-type polyhedral LED lamp 1 according to an embodiment of the present invention will be described.

7 is a perspective view illustrating a heat dissipation process of the bulb-type polyhedral LED lamp 1 according to an embodiment of the present invention.

As illustrated in FIG. 7, the heat dissipation process of the bulb-type polyhedral LED lamp 1 according to the present embodiment is described. First, heat emitted from the LED 110 is first deposited on the PCB piece substrate 120 having high thermal conductivity. Absorbed and released as a car, the light is emitted to the outside through the diffusion lens 300.

Then, the heat absorbed by the PCB piece substrate 120 is moved to the heat pipe 210 of the heat dissipation body 200 in contact with the bottom surface of the PCB piece substrate 120, the heat radiation is formed through the heat pipe 210 Heat is secondarily released by natural convection through holes 212.

The heat transferred to the heat pipe 210 emits heat in a third order by the first heat sink 220 coupled to the lower circumference of the heat pipe 210.

And, the heat transferred to the first heat sink 220 is the outside air by the plurality of heat radiating protrusions 234 of the second heat sink 230 is coupled to the lower portion of the first heat sink 220. By contacting with the final release of heat.

Therefore, together with the heat conduction body 200 and the PCB fragment substrate 120 and the heat dissipation body 200 having excellent thermal conductivity, the heat dissipation can be performed in a fourth order together with the heat pipe 210, the first heat sink 220, and the second heat sink 230. The bulb-type polyhedral LED lamp 1 which can efficiently dissipate the heat generated by the LED 110 and can ensure the long life of the lamp by eliminating the possibility of damage caused by the heat generation of the LED 110. Will be able to provide.

Hereinafter, the operation of the bulb-type polyhedral LED lamp according to another embodiment of the present invention will be described in detail with reference to FIGS. 8 and 9.

FIG. 8 is a perspective view illustrating an LED light-emitting body consisting of a 20 octahedron in the bulb-type polyhedral LED lamp according to another embodiment of the present invention, and FIG. 9 is an exploded view of the LED light-emitting body of FIG. 8.

As shown in Figure 8 and 9, the bulb-shaped polyhedral LED lamp 2 according to another embodiment of the present invention is an embodiment of the present invention except that the LED light-emitting body 101 consists of a tetrahedron The same as the bulb-type polyhedral LED lamp 1 according to the invention. That is, the LED light emitter 101 according to the present embodiment is formed in a structure in which 19 triangular PCB piece substrates 126 are connected and attached.

Here, one of the PCB fragment substrates 126 forming the icosahedron is omitted by passing through the heat dissipation body 200, and at least one LED 110 is mounted on the remaining 19 PCB fragment substrates 126. Although it has the same size as the dodecahedron, it is possible to increase the luminance even more and to obtain a light source closer to the sphere.

In addition, when one 350 mA LED (1102 to 1111) is disposed on each of the 19 PCB fragment substrates 126 of the LED light emitter 100, 350 mA × 19 × DC 3.3V = 21945 ÷ 1000 = 21.945W A bulb type polyhedral LED lamp 1 can be obtained. It has a brightness that can replace more than 100W class of incandescent bulbs.

Hereinafter, the operation of the bulb-type polyhedral LED lamp according to another embodiment of the present invention will be described in detail with reference to FIG. 10.

10 is an exploded view of an LED light-emitting body consisting of 32 polyhedrons in the bulb-type polyhedral LED lamp according to another embodiment of the present invention.

As shown in FIG. 10, the bulb-type polyhedral LED lamp according to another embodiment of the present invention includes an LED emitter 102 having 20 hexagonal PCB piece substrates 127 and 12 pentagonal PCB substrate pieces 128 mutually. It is the same as the bulb-type polyhedral LED lamp 1 according to one embodiment of the present invention, except that it is made of a 32-sided body formed in a circular shape.

Here, one of the 32 polyhedrons, which passes through the heat dissipation body, may be omitted, and at least one LED 110 may be mounted on each of the remaining 31 PCB pieces. Thus, the LED light emitter 100 having a soccer ball shape may be obtained.

In addition, when one 350 mA LED (1102 to 1111) is disposed on 31 PCB piece substrates 128 of the LED light emitter 100, each having a power consumption of 350 mA × 31 × DC 3.3V = 35805 ÷ 1000 = 35.805W A bulb type polyhedral LED lamp 1 can be obtained. It has brightness that can replace more than 150W class of incandescent bulbs.

As such, the shape of the LED light-emitting body 100 according to the present invention is not limited to the above-described tetrahedron, icosahedron and 32-hedron, but may also be in the form of rhombus dodecahedron, shaved octahedron, or tetrahedron.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of the invention.

1 is a longitudinal sectional view of an LED incandescent lamp according to the prior art;

Figure 2 is a perspective view of a bulb-type polyhedral LED lamp according to an embodiment of the present invention,

3 is an exploded perspective view of the bulb-type polyhedral LED lamp of FIG.

4 is a partial perspective view illustrating a coupling relationship of an LED light emitting device according to an embodiment of the present invention;

5 is a longitudinal cross-sectional view showing the bulb-type polyhedral LED lamp of FIG.

6 is an exploded view of the LED light-emitting body of the bulb-type polyhedral LED lamp according to an embodiment of the present invention,

7 is a perspective view for explaining a heat dissipation process of the bulb-type polyhedral LED lamp 1 according to an embodiment of the present invention,

8 is a perspective view showing the LED light-emitting body consisting of a tetrahedron in the bulb-type polyhedral LED lamp according to another embodiment of the present invention,

9 is an exploded view of the LED light-emitting body of FIG. 8, and

FIG. 10 shows a development view of each of the LED light-emitting bodies consisting of 32 polyhedrons in the bulb-type polyhedral LED lamp according to another embodiment of the present invention.

* Explanation of symbols on main parts of the drawings *

1,2: bulb type polyhedral LED lamp 100,101,102: LED light emitting body

110: LED 120,123,126,127,128: PCB Engraving Board

120a, 123a: corner surface 121: first power terminal

122: second power terminal 124: third power terminal

125: fourth power supply terminal 200: heat dissipation body

210: heat pipe 212: heat dissipation hole

220: first heat sink 222: heat dissipation protrusion

230: second heat sink 232: inclined surface

234: heat dissipation protrusion 236: fastening groove

238: thread 300: diffusion lens

310: step 400: socket base

410: screw thread 412: first thread

414: second thread 500: switching mode power supply

510: lead wire 600: insulator

1201 ~ 1212: PCB Engraving Board 1101 ~ 1112: LED

Claims (9)

LED is a light source and at least one LED is mounted and consists of a plurality of PCB piece substrate having a first power terminal protruding in the corner surface and a second power terminal formed in the corner surface, each PCB piece substrate is a corner LED emitters, whose faces are interconnected to the edges of different PCB piece substrates to form polygonal cubes, It is coupled to one side of the LED light emitter and is formed in a vertical column shape having a hollow to emit heat generated from the LED to the outside, the upper end is in contact with the at least one PCB substrate and at least one heat dissipation hole is formed on the side It is coupled to the heat pipe and the lower periphery of the heat pipe, the first heat sink portion is formed with at least one heat dissipation projection of a curved shape that gradually increases in diameter toward the bottom, and the lower portion of the first heat sink portion A heat dissipation body coupled to the second heat sink having at least one heat dissipation protrusion vertically formed on an outer surface thereof; A diffusion lens detachably coupled to one side of the heat dissipation body and surrounding the LED light emitter and including a light diffusing agent for diffusing light from the at least one LED; A socket base detachably coupled to a lower end of the heat dissipation body to be screwed and connected to an external power supply source to supply driving power to the LED; A switching mode power supply unit disposed between the heat dissipation body and the socket base to rectify an alternating current supplied through the socket base to a DC constant voltage to supply the LED light emitter; An insulator provided inside the heat dissipation body to insulate electricity flowing into the socket base from flowing into the heat dissipation body and the switching mode power supply unit; The second heat sink portion has a fastening groove formed inside the upper portion, and the diffusion lens has a stepped portion formed at a lower end thereof, and the bulb type is detachable and coupled to the second groove by the fastening groove of the heat sink portion and the diffusion lens. Polyhedral LED Lamp. In claim 1, The LEDs Bulb-type polyhedral LED lamps with colored LEDs. The method of claim 1 or 2, The LEDs The bulb type polyhedral LED lamp which is an ultraviolet LED. In claim 1, The LED light emitter Bulb-shaped polyhedral LED lamps that are dodecahedron or dodecahedron. In claim 1, The LED light emitter A bulb-shaped polyhedral LED lamp consisting of 32 hexahedrons with 20 hexagonal PCB pieces and 12 pentagonal PCB pieces attached in a circular connection. delete delete delete delete

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