KR20100083664A - Led lighting apparatus having expansion connecting for length direction - Google Patents

Abstract

PURPOSE: It consecutively interlinks a plurality of monomers and the LED electric lamp device having the longitudinal direction the expansion connection composition expands to the longitudinal direction. The correspondence range toward the installation situation of the space establishing the illumination is expanded. CONSTITUTION: It is arranged in both sides of the terminal side monomer(1A) is the connection monomer(1B). The inner side of the base(3A, 3B) is combined with the printed circuit board including a plurality of LEDs. The base is combined with the optical transmission cover(4A, 4B). The optical transmission cover one side is combined with the terminal(5). The connection terminal electrically interlinks the power source inputted through the terminal.

Description

LED LIGHTING APPARATUS HAVING EXPANSION CONNECTING FOR LENGTH DIRECTION}

The present invention relates to an LED lighting device.

In detail, the present invention, in order to implement a lighting lamp extended in the longitudinal direction by continuously connecting a plurality of units in consideration of the size and shape of the space for installing the lights, each unit is connected more firmly and stably It proposes a dedicated connection configuration, and it can be bent at a desired point by going from a simple straight configuration to an LED lighting lamp having an extended connection configuration in a longitudinal direction that can be produced in various forms according to the installation situation and purpose or user's request. Relates to a device.

In addition, the present invention implements a LED driving circuit excluding a separate configuration for stepping down voltage for commercially available AC power supply voltage to implement the product simplification and light weight, the LED driving circuit can be driven more stably In order to ensure that each drive circuit including the LED is divided into block units for a single power supply, the LED lamp having an extended connection configuration in one longitudinal direction to optimize the arrangement of each drive circuit and the elements constituting the drive circuit. Relates to a device.

At the same time, the present invention allows a plurality of light emitting chips to be connected in series in an SMD (Surface Mount Devices) type LED device to further simplify the configuration of the product, and the The present invention relates to an LED lighting device having an extended connection configuration in one longitudinal direction to optimize the number of arrays so that the power factor and light efficiency are excellent.

In particular, the present invention mounts the elements of the LED driving circuit in the form of Surface Mount Technology (SMT) on the printed circuit board, and molding the thermal conductive material on the printed circuit board mounted with each device on the LED and the driving circuit The present invention relates to an LED lighting device having an extended connection configuration in one longitudinal direction to improve heat dissipation efficiency and minimize leakage current emitted on a printed circuit board to improve power supply efficiency.

The lighting device applied to the interior space lighting of the building using the LED is mainly applied to the main lamp of the room or the office, the table stand, etc., and can further illustrate the lighting tile using the light guide plate in a more advanced form.

With this lighting device, LED lamps have been proposed and released in combination with a tube-shaped light transmission cover which allows LEDs to be arranged in a row in the longitudinal direction and transmits and emits the light of the LED. It is becoming.

The lighting device is coupled to the fluorescent lamp socket installed in the ceiling or wall of the space. Such a lighting device is accompanied by an A / D converter due to the characteristic that the LED is driven by a DC current of a suitable voltage.

The A / D converter as described above includes a transformer coil for stepping down alternating current, and such a transformer coil is disposed at a considerable size in the LED module, which causes a problem in that a product to which it is applied is enlarged.

In order to solve the above problems, a power supply device called a switching mode power supply (SMPS) is recently applied. For reference, the SMPS is used by converting an alternating frequency (50 Hz ~ 60 Hz) into a direct current to a high frequency (tens dozens of hundreds ~ hundreds of kHz), according to the technology of high difficulty.

In addition, the conventional LED lighting device has been proposed to drive the LED according to the voltage drop in each LED for the power source by connecting a plurality of LEDs in a configuration in which SMPS is excluded.

In this case, the LED lighting device is an LED drive circuit by the LED part mounted by mounting a plurality of LEDs on a printed circuit board, and the drive circuit part is installed on a separate printed circuit board several elements for driving the LED. It is configured and applied.

Here, the LED is mainly applied to the device of the SMD type, the device of the SMD type is as is well-known that the two or more light emitting chips are connected in parallel and built in a dense configuration.

The conventional straight pipe type lighting device as described above is produced in accordance with the existing fluorescent lamp standard is set length. On the other hand, ordinary fluorescent lamps must be filled with a fluorescent tube inside, so that a single closed tube-type tube must be applied, while a straight tube type lighting device manufactured using LED as a light source can perform its function without having a sealed configuration. Nevertheless, it is conventionally manufactured to the same standard as the fluorescent lamp.

It is difficult to cope with various sizes and shapes of the space for realizing lighting, and in particular, it is difficult to cope with various lighting in the space due to its simple shape. This is extremely limited.

That is, it is recognized as a general direction that the LED lamps are arranged in a plurality of columns and rows on the ceiling, wall or floor, respectively. However, the production of such LED lighting is quite monotonous and there are significant limitations to meet the needs of more diverse users.

In addition, when the conventional LED lighting device manufactures a single product requiring a large amount of LEDs, a certain number of LEDs are connected in series to form a group in the product, and the series of connected LED groups are connected in parallel to the LEDs. Will be added.

At this time, when a failure occurs in any one group of the LED group connected in parallel, the LED group having a failure can be replaced to perform the LED drive, but the failure occurs in the drive circuit itself for driving these LED groups. In this case, instability occurs because the entire LED group itself is not driven.

In addition, since SMD-type LEDs, which are mainly applied to the LED lighting device, are connected in parallel with light emitting chips inside them, it is very inconvenient to set the voltage drop value generated in each device even when the LEDs are connected in series. In order to prepare a number of LEDs in the series connection, a large amount of LEDs are required regardless of the number of built-in LEDs.

In particular, the LED lighting device generates a considerable heat due to the driving characteristics of the LED, it is applied to the heat sink coupled to the printed circuit board in a configuration for dissipating the heat to the outside. However, such a heat sink is itself made of a considerable size, and since the material is formed of a metal material such as aluminum, there is a problem that a considerable difficulty is exposed to simplify and lighten the product.

The present invention has been invented to solve the above problems. Accordingly, the present invention has several objects as follows.

The first object of the present invention is to implement a lighting lamp that extends in the longitudinal direction by connecting a plurality of lighting units arranged with a plurality of LEDs in series, and each unit is more robust and stable by a dedicated connection configuration LED lighting device that can be produced in various forms according to the installation situation, such as the size and shape of the space for installing the lighting, and the user's various requirements by allowing each unit to be bent at a desired angle at the connection point of the unit. In providing.

The second object of the present invention is to configure an LED driving circuit excluding a separate configuration for dropping the voltage, and to make the LED driving circuit divided into several block units for a single power supply. It is to provide an LED lighting device that can be driven stably.

The third object of the present invention is to implement a SMD (Surface Mount Devices) type LED in which a plurality of light emitting chips are connected in series, and to apply it to the LED driving circuit to further simplify the composition of the product. At the same time, to provide a LED lighting device to excellent power factor and light efficiency required for lighting implementation.

A fourth object of the present invention is to mount each element of the LED drive circuit on the printed circuit board by SMT (Surface Mount Technology) on the printed circuit board, and these elements are mounted. The present invention provides an LED lamp device in which a thermally conductive material is molded on a printed circuit board to minimize heat release efficiency and leakage current.

In order to achieve the first object, the present invention has the following configuration.

The present invention is coupled to a printed circuit board having a plurality of LEDs arranged inside the base having a longitudinal direction, coupled to the base side of the direction of the light emitted from the LED is coupled to the light transmission cover for transmitting the light through A terminal side unit coupled to a fluorescent lamp socket on one side of the light transmission cover, and having a terminal coupled to supply a power; At least one connection unit having a base and a light transmitting cover coupled to the terminal side unit without a terminal, and having a printed circuit board having an LED arranged inside the base; Male and female are respectively mounted on one side of the printed circuit board of the terminal unit and the both sides of the printed circuit board of the connecting unit, and the connecting terminal electrically connects the power input through the coupling and terminals between the units by the mutual coupling of the male and female. It is configured to include.

At this time, the present invention is elastically fitted to the outer surface of the light transmission cover at the point where each unit is mutually coupled to each other, an elastic fastening band for reinforcing the bonding force of each unit;

In addition, the present invention is interposed between the coupling end between each unit, the connector is mounted on both sides opposite to each unit for electrical connection, the connector consisting of coupling means between each unit; is configured to further include. At this time, the connector is configured to form a wrinkle portion that is freely bent over part or the whole so that the connection point of each unit is bent at the desired angle.

In order to achieve the second object of the present invention, the printed circuit board of each unit, the LED drive circuit unit for rectifying and supplying a commercial AC power; And an LED array unit configured to perform a voltage drop on the LEDs connected in series by the number corresponding to the input power rectified by the LED driving circuit unit to drive the LEDs.

In this case, the LED driving circuit unit and the LED array unit are connected in a 1: 1 correspondence to constitute a single block unit circuit, and a plurality of block unit circuits are connected in parallel to a single commercial power supply to constitute a single product. .

In particular, the LED driving circuit unit includes a rectifying unit composed of a bridge diode to rectify the commercial power input from the outside, the LED array unit for performing a voltage drop corresponding to the number of LEDs connected in series with respect to the commercial power input The voltage drop element is configured in series with the LED.

In addition, the driving circuit unit includes a constant voltage circuit for supplying a constant voltage power irrespective of the voltage of the commercial power source input, the constant voltage circuit is a pair of zener diodes or varistors to maintain a constant voltage for the bidirectional voltage It is configured by applying (varistor) element.

In order to achieve the third object of the present invention, the LED is applied in the form of SMD having a plurality of light emitting chips therein, the light emitting chips are configured in series with each other. Here, the light emitting chip of the LED or SMD-type LED made of a single light emitter of the LED is composed of 30 to 84 in series for the commercial power of 100V ~ 240V.

In order to achieve the fourth object of the present invention, a plurality of LEDs are arranged and mounted on one surface of the printed circuit board, and each device for driving the LEDs is mounted on the back surface of the printed circuit board in the form of SMT, and the back surface of each device is mounted. A thermally conductive material layer is formed and configured.

At this time, the thermally conductive material layer is formed by applying a composition having a thermal conductivity function by adding and mixing any one or more materials of carbon, CNT, graphite to the synthetic resin. In particular, the thermally conductive material layer is configured to maintain thermal conductivity of 0.01 W / m · k to 2000 W / m · k.

As described above, the present invention, by connecting a plurality of units in succession so that the illumination lamp is extended in the longitudinal direction is implemented to achieve an effect that the corresponding range for the installation situation of the space to install the illumination is widened. In addition, the present invention contributes to the improvement of product quality by connecting each unit more firmly and stably by a dedicated connection configuration, so that each unit is bent at the desired angle at the connection point of the unit to meet the various needs of the user Therefore, it is possible to produce in various forms, thereby obtaining a better interior effect.

In addition, the present invention is composed of an LED driving circuit excluding a separate configuration for dropping the voltage, and the LED driving circuit is divided into a plurality of blocks for a single power supply, thereby simplifying the circuit and reducing the weight of the product. Since the LED driving circuit and the arrangement of the elements constituting the LED driving circuit are optimized, the LED driving circuit is driven more stably, thereby improving the satisfaction of using the product.

In particular, the present invention can further simplify the configuration of the product by the series connection configuration of the light emitting chip embedded in the SMD-type LED, and the power factor and light efficiency required for lighting implementation by optimizing the number of the LED and the light emitting chip The effect is to produce a good product.

At the same time, the present invention can expect excellent heat dissipation efficiency by the elements mounted by SMT on the printed circuit board and the configuration of these elements formed with a thermally conductive material, in particular, by molding of carbon-based material By minimizing the leakage current on the printed circuit board it is possible to implement a more stable LED driving circuit.

Embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of an LED lighting device according to the present invention, FIG. 2 is an enlarged view of a main part of the LED lighting device according to the present invention, FIG. 3 is a front sectional view of the LED lighting device according to the present invention, and FIG. Side sectional view of an LED lighting device.

Referring to the drawings, the LED lamp device according to the present invention comprises a terminal side unit 1A, a connecting unit 1B, a connecting terminal (2). Here, the LED lighting device has a terminal form that can be coupled to the socket of a general fluorescent lamp, it will be found that can be used to be coupled to the socket of a general fluorescent lamp only by combining the terminal side unit 1A of both sides to be described later.

The terminal side unit 1A and the connection unit 1B are basically coupled to the inside of the bases 3A and 3B in which the printed circuit board P, in which a plurality of LEDs L are arranged, has a longitudinal direction. The configuration of maintaining the form in which the light transmission covers 4A and 4B are coupled to 3A and 3B is the same.

However, the terminal unit 1A is disposed on both sides of the connecting unit 1B, and the terminals 5 are coupled to one side of each of the light transmission covers 4A and 4B to receive power supplied from the outside. It is composed. At this time, the terminal 5 has a configuration of a terminal 5 for coupling to a fluorescent lamp socket, which terminal 5 is a printed circuit board P (specifically, LED) inside each terminal unit 1A. Of course, it has a configuration electrically connected to it.

Here, the bases 3A and 3B of the units 1A and 1B are materials for dissipating heat generated when driving the LED L to the outside, and a metal having high thermal conductivity such as aluminum is used. In addition, the light transmission covers 4A and 4B may be formed by using polymethyl methacrylate (PMMA), polycarbonate (polycarbonate) resin, or by mixing a light diffusing agent with these resins. It is comprised by applying light-diffusion resin.

At this time, the light transmitting cover (4A, 4B) in the drawing illustrates the configuration formed of a tubular body of the cross-sectional shape of the circular tube, in addition to the rectangular tubular or elliptical or polygonal tubular body of various straight pipe shape A constitution, a surface light emitting member such as a light guide plate, or the like may be applied.

In addition, the terminal-side unit body (1A) is one pair is divided on both sides are arranged as described above, the connection unit body (1B) at least one of the plurality corresponding to the length to be extended to each other between the terminal-side unit body (1A). Combined and connected.

The connection terminals 2 are provided in pairs of male and female and are mounted on one side of the printed circuit board P of each terminal side unit 1A and on both sides of the printed circuit board P of the connecting unit 1B. do.

Such a connection terminal 2 has an electrical connection function so that the power inputted through the coupling between the units 1A and 1B and the terminal 5 of the terminal side unit 1A can be transmitted to all the units 1A and 1B. Will be performed. Therefore, the terminal 5 is electrically connected and mounted on each printed circuit board (P).

In addition to the above configuration, the coupling band 6 is coupled to the coupling point of each unit 1A, 1B.

The fastening band 6 is configured to reinforce the coupling force of the mutual coupling point of each unit (1A, 1B), can be elastically fitted to the outer surface of the light transmission cover (4A, 4B) of each unit (1A, 1B). The part is formed in the form of an open ring. In particular, the fastening band 6 is elastically fitted to the outer surface of the light transmission cover (4A, 4B) is formed to have a transparent body or a specific color to transmit the light emitted through the light transmission cover (4A, 4B). do.

To this end, the fastening band 6 is formed of an acrylic series PMMA (polymethyl methacrylate), PC (Polyarbonate: polycarbonate) resin is excellent in light transmission, excellent mechanical rigidity and elasticity.

5 is a block diagram of the LED lighting device according to the present invention, Figure 6 is a block diagram of the LED circuit configuration of the LED lighting device according to the present invention, Figure 7 is an actual circuit diagram of the LED lighting device according to the present invention.

8 is a perspective view of the LED arrangement of the LED lighting device according to the present invention, Figure 9 is a perspective view of the LED driving circuit portion of the LED lighting device according to the present invention, Figure 10 is a cross-sectional view of the LED lighting device according to the present invention.

11 is an exemplary LED diagram of the LED lighting device according to the present invention, Figure 12 is a LED connection diagram of the LED lighting device according to the present invention.

Referring to the drawings, the LED lighting device according to the present invention is the LED array unit 10 and the LED driving circuit unit for driving the LED (L) on the printed circuit board (P) of each of the aforementioned units (1A, 1B). It is comprised by installing 20.

At this time, the LED array unit 10 and the LED driving circuit unit 20 is electrically connected to correspond to each other 1: 1 constitute a unit block circuit (B), the unit block circuit (B) is a single commercial power source It is configured to be implemented in a single product by connecting a plurality of parallel to the. In particular, the unit block circuit (B) is divided on both sides of a single printed circuit board (P) is composed of each element is mounted by the SMT.

By such a configuration, even if a failure occurs in any part of the LED driving circuit unit 20 or the LED array unit 10 in a single lighting device product, the entire lighting device product itself is the unit block circuit (B) in which the failure occurs. The remaining unit block circuit B is allowed to perform a normal operation.

The LED driving circuit unit 20 is composed of a rectifier 23 composed of a power input unit 21 and a bridge diode 22 for rectifying the commercial power input through the power input unit 21. Here, it turns out that the commercial power source is an AC power source of 100V ~ 240V used in general homes and industrial sites.

At this time, the LED driving circuit unit 20 is configured by further adding a constant voltage circuit (30).

The constant voltage circuit 30 is configured to supply power of a constant voltage regardless of the voltage of the input power. That is, the constant voltage circuit 30 is a configuration for realizing a free volt and a pair of zener diodes or varistors 31 for maintaining a constant voltage with respect to an AC voltage having a voltage in both positive and positive directions. It is configured by applying an element.

The LED array 10 is composed of a plurality of LED (L) is connected in series.

Here, the LED array 10 includes a voltage drop element 25 for performing a voltage drop that is not satisfied in the LED (L). The voltage drop element 25 is mainly configured by applying a resistance. In particular, the voltage drop element 25 is preferably installed in a uniform number of LED (L) arrangement point in order to ensure a uniform voltage drop rate for each section of the LED (L) connected in series.

In addition, the LED (L) can be applied to a device made of a single light emitter, it is preferable to apply the SMD form as shown in Figure 11 in order to reduce the size and weight of the product according to the dense configuration of the circuit. In this case, the SMD type LEDs L include two or more light emitting chips L '(two, three, four in the figure) as shown in FIGS. 12A, 12B, and 12C. Built-in, these light emitting chips L 'are manufactured in a connected state connected in series.

That is, the light emitting chip (L ') of the LED (L) or SMD type LED (L) made of a single light emitter of the LED (L) is connected in series of 30 to 84 pieces for commercial power of 100V ~ 240V It is composed. More specifically, the number of LEDs L or light emitting chips L 'for each power source is as follows.

-100V: 27 ~ 36 LEDs (LED driving voltage is 3.0V ~ 3.4V)

-110V: 30 ~ 39 LEDs (3.0V ~ 3.4V LED driving voltage)

-120V: 33 ~ 42 LEDs (LED driving voltage is 3.0V ~ 3.4V)

-220V: 63 ~ 78 LEDs (LED driving voltage is 3.0V ~ 3.4V)

-230V: 66 ~ 81 LEDs (LED driving voltage is 3.0V ~ 3.4V)

-240V: 69 ~ 84 LEDs (3.0V ~ 3.4V LED driving voltage)

Meanwhile, in the LED driving circuit unit 20 installed on one surface of the printed circuit board P, each element is mounted on the printed circuit board P in the SMT form as described above. At this time, the thermally conductive material layer 24 is formed on each of the device mounting surface to improve the self-heating efficiency of the LED driving circuit unit 20 to the maximum.

The thermally conductive material layer 24 is formed by coating a composition having a thermal conductivity function by adding and mixing any one or more materials of carbon, carbon nanotube (CNT), and graphite (graphite) to a synthetic resin. At this time, the synthetic resin by selecting a resin such as PMMA (Poly methy methacrylate: polymethyl methacrylate), epoxy, silicone, which can perform the unit operation of the thermal conductivity according to the addition of the carbon, CNT, graphite Apply. Application of the mixed composition of the synthetic resin and carbon, CNT, graphite is appropriately selected in consideration of product specifications.

In this case, the thermally conductive material layer 24 has a thermal conductivity of 0.01 W / g in view of the number of LEDs (L) in the LED array unit 10 and the amount of heat emitted from the corresponding LED driving circuit unit 20. It is preferable to keep it at m * k-2000W / m * k.

Additional Examples

Figure 13 is a perspective view of a further embodiment 1 of the present invention, Figure 14 is a perspective view of a further embodiment 2 of the present invention.

Referring to the drawings, further embodiments 1 and 2 of the present invention suggest a configuration in which the coupling between the units 1A and 1B can be performed through the connectors 40 and 50 rather than the direct coupling method.

The connector 40 of the first embodiment (Fig. 13) is interposed between the coupling ends between each unit (1A, 1B), the connection terminal (2) for electrical connection to both sides facing each unit (1A, 1B) Keep the configuration fitted.

In order to configure such a connector 40 more efficiently, the connection terminal 2 of the connector 40 is equipped with a connection terminal 2 protruding from both sides, and all units 1A and 1B for coupling thereto. ) So that the connecting terminal (2) formed with a groove for accommodating the pin can be mounted to uniformize the connecting terminal (2) applied during the production of the unit (1A, 1B) to make the production more convenient do.

The connector 50 of the second embodiment (FIG. 14) shows a configuration in which the pleats 51 are formed in part or the entire length section in the above-described configuration of the connector 50 of the first embodiment.

By such a configuration, the connector 50 of the second embodiment corresponds to the installation situation of the space where the connecting points of the units 1A and 1B are to be illuminated by the free bending action of the pleats 51 and the user's request. It can be bent at the desired angle.

In addition, the connector 50 of the additional embodiment 2 is the same as the connector 40 of the additional embodiment 1 by the same installation configuration of the terminal 2 to more conveniently perform the production of the units (1A, 1B) You can also

1 is an exploded perspective view of an LED lamp device according to the present invention.

Figure 2 is an enlarged view of the main part of the LED lamp device according to the present invention.

Figure 3 is a front sectional view of the LED lamp device according to the present invention.

Figure 4 is a side cross-sectional view of the LED lamp device according to the present invention.

5 is a block diagram of an LED lamp device according to the present invention.

6 is a block diagram of the LED circuit configuration of the LED lighting device according to the present invention.

7 is an actual circuit diagram of the LED lamp device according to the present invention.

8 is a perspective view of the LED array of the LED lighting device according to the present invention.

9 is a perspective view of the LED driving circuit unit of the LED lighting device according to the present invention.

10 is a cross-sectional view of the LED lamp device according to the present invention.

11 is an exemplary view of LED of the LED lamp device according to the present invention.

12 is a LED connection diagram of the LED lamp device according to the present invention.

Figure 13 is a perspective view of a further embodiment 1 of the present invention.

Figure 14 is a perspective view of a second embodiment of the present invention.

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

1A: terminal unit 1B: connecting unit

2: connector 3A, 3B: base

4A, 4B: Light transmission cover 6: Fastening band

10: LED array 20: LED drive circuit

22: bridge diode 23: rectifier

24: thermally conductive material layer 30: constant voltage circuit

31: Varistor 40, 50: Connector

51: pleat B: unit block circuit

L: LED L ': Light emitting chip

Claims (13)

A printed circuit board P having a plurality of LEDs L arranged therein is coupled to the inside of the base 3A having a longitudinal direction, and is coupled to the side of the base 3A in the direction in which the light of the LEDs L is emitted. A light transmitting cover 4A coupled to the light transmitting cover 4A, and a terminal side unit 1A coupled to a fluorescent lamp socket on one side of the light transmitting cover 4A, and having a terminal 5 for supplying power; A printed circuit board in which the base 3B and the light transmitting cover 4B are coupled to each other, and the LED L is arranged inside the base 3B. One or more connecting units 1B mounted with P); Female and male are respectively mounted on one side of the printed circuit board P of the terminal-side unit 1A and both sides of the printed circuit board P of the connecting unit 1B, and each unit 1A and 1B is formed by mutual coupling of the male and female. LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that it comprises a; and a connecting terminal (2) for electrically connecting the power input through the terminal (5) and the coupling between. The method of claim 1, A fastening band (6) made of an elastic material elastically fitted to an outer surface of the light transmission cover (4A, 4B) of the point where the units (1A, 1B) are mutually coupled to reinforce the bonding force of each unit (1A, 1B); LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that it further comprises a. The method of claim 1, Interposed between the coupling ends between the respective units (1A, 1B), the connecting terminal (2) is mounted on both sides opposite to each unit (1A, 1B) for coupling means between each unit (1A, 1B) LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that it further comprises a connector (40, 50) consisting of. The method of claim 3, wherein the connector 50 LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that the fold portion 51 is bent freely over part or the entirety so that the connection point of each unit (1A, 1B) is bent at a desired angle. The printed circuit board P of claim 1, wherein the printed circuit board P of each of the units 1A and 1B is provided. An LED driving circuit unit 20 for rectifying and supplying commercial AC power; LED array unit 10 for driving the LED (L) by performing a voltage drop from the LED (L) connected in series in the number corresponding to the input power rectified by the LED driving circuit unit 20; LED lighting device having an extended connection configuration in the longitudinal direction. The method of claim 5, The LED driving circuit unit 20 and the LED array unit 10 are each connected in a one-to-one correspondence and constitute a single block unit circuit B. A plurality of block unit circuits B are provided for a single commercial power supply. LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that formed in a single product connected in parallel. The method of claim 5, The LED driving circuit unit 20 includes a rectifying unit 23 composed of a bridge diode 22 to rectify the commercial power input from the outside, the LED array unit 10 LED (L) for the commercial power input LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that the voltage drop element 25 for performing a voltage drop corresponding to the number of series connected in series with the LED (L). The method of claim 5 or 6, wherein the driving circuit section 20 It includes a constant voltage circuit 30 for supplying a constant voltage power irrespective of the voltage of the commercial power input, the constant voltage circuit 30 is a pair of zener diodes or varistors to maintain a constant voltage for the bidirectional voltage (varistor) LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that the device is applied. The method of claim 5, wherein the LED (L) is Applied in the form of SMD having a plurality of light emitting chips (L ') therein, the light emitting chip (L') having an extended connection configuration in the longitudinal direction, characterized in that configured in series with each other. The method according to claim 5 or 9, Among the LEDs (L), the light emitting chip (L ') of the LED (L) or SMD type LED (L) of a single light emitting device is characterized in that the number of 30 to 84 in series for commercial power of 100V ~ 240V LED lighting device having an extended connection configuration in the longitudinal direction. 7. The printed circuit board (P) according to any one of claims 1 to 5, wherein A plurality of LEDs (L) are arranged and mounted on one side, and each element for driving the LED (L) is mounted on the back side in the form of SMT, and the thermal conductive material layer 24 is formed on the back side of each element mounted. LED lighting device having an extended connection configuration in the longitudinal direction. The method of claim 11 wherein the layer of thermally conductive material 24 LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that formed by coating a composition having a thermal conductivity function by adding and mixing any one or more materials of carbon, CNT, graphite to the synthetic resin. The method of claim 12 wherein the layer of thermally conductive material 24 LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that the thermal conductivity is maintained at 0.01W / m · k ~ 2000W / m · k.

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