KR20100094906A

KR20100094906A - Led lighting apparatus having expansion connecting for length direction

Info

Publication number: KR20100094906A
Application number: KR1020090014097A
Authority: KR
Inventors: 심현섭
Original assignee: 심현섭
Priority date: 2009-02-19
Filing date: 2009-02-19
Publication date: 2010-08-27

Abstract

PURPOSE: An LED lighting apparatus having expansion connecting in longitudinal direction is provided to improve product quality by firmly connecting each unit. CONSTITUTION: A plurality of LEDs are arranged in longitudinal direction inside optical transmission cover(4A,4B) of a tube type. A plurality of illumination units(1A,1B) pass the light emitted from the LED through the optical transmission cover. A connecting unit(2) interlinks each illumination unit in the longitudinal direction. A male and female connectors(6A,6B) are installed inside the connecting unit and are electrically connected to the LED of each illumination unit.

Description

LED LIGHTING APPARATUS HAVING EXPANSION CONNECTING FOR LENGTH DIRECTION}

The present invention relates to an LED lighting device.

In detail, the present invention implements a tube-shaped lamp that is 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 for the purpose, and has a finishing end to keep the interconnected points more firm and stable coupling, and also bend at the desired point by going from a simple straight configuration by a separate connector configuration It relates to an LED lighting device having an extended connection configuration in the longitudinal direction that can be produced in a variety of forms according to the installation situation and purpose or user requirements.

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 Each drive circuit including LEDs is divided into blocks for a single power source, and the LEDs have 2 extended connection configurations in one longitudinal direction so that the arrangement of each drive circuit and the elements constituting the drive circuits is optimized. It relates to a lighting 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 are arranged in a tubular form by combining a tube-shaped light transmission cover that allows LEDs to be arranged in a line with the longitudinal direction and transmits and emits the light of the LED. It is becoming.

The lamp 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 SMD-type device, which is known that the two or more light emitting chips are connected in parallel in the device of the built-in compact structure.

The conventional tubular lamp device as described above is produced in accordance with the existing fluorescent lamp standard is set in length. On the other hand, ordinary fluorescent lamps must be filled with a single tube-type tube, because fluorescent materials must be filled inside, while tube-type lamps manufactured using LEDs as light sources can perform their functions 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, by connecting the plurality of lighting units arranged with a plurality of LEDs in succession to implement a lamp that is extended in the longitudinal direction, so that the mutually coupled end of each unit is connected more firmly and stably In particular, the LED lighting device that can be produced in a variety of forms according to the installation situation, such as the size and shape of the space for installing the lighting, or the user's various needs by allowing each unit to be bent at the 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 includes a plurality of lighting units disposed in the tubular light transmitting cover so that a plurality of LEDs have a longitudinal direction and the light emitted from the LED is transmitted through the light transmitting cover; In order to connect the respective lighting units in the longitudinal direction, the male and female are divided and installed at the opposite ends to be detachably coupled to each other, and the female and male connection terminals for electrically connecting the LEDs of the respective lighting units are installed therein. It is configured to include a connector unit.

At this time, the connector unit is coupled to close the one end of the lighting unit, the connection terminal is coupled to the inside and electrically connected to a plurality of LEDs, the insert groove formed on the outer peripheral surface; The insert is coupled to close one side of the lighting unit to be coupled with the combined lighting unit, has an inner space for the insert is fitted, the connection terminal for corresponding coupling with the connection terminal of the insert is installed inside, It is configured to include; the coupling protrusion is fitted to the coupling groove of the insert; formed on the outer periphery.

Particularly, the connector part is provided with a freely bendable pleat member between the point where the lighting unit is coupled to each other and the point where the male and female are coupled to each other. Installed and configured.

On the other hand, the lighting unit is coupled to a printed circuit board in which a plurality of LEDs are arranged inside the base having a longitudinal direction, coupled to the base side of the light emitting direction of the LED light transmission cover for transmitting the light through Is coupled, is coupled to the fluorescent lamp socket on one side of the light transmission cover is configured to combine the male or male terminal for supplying power.

Here, the light transmission cover has a cross-sectional shape of the tube is selectively formed of the garden type, oval, polygonal shape, and the connector portion that closes the illumination unit corresponds to the cross-sectional shape of the light transmission cover of the garden type, oval, polygonal shape Optionally formed and configured.

In addition, the light transmission cover may be configured to be applied in the form of a straight straight tube in the longitudinal direction, bent at one or more points or a curved tube curved at a constant curvature.

In order to achieve the second object of the present invention, the printed circuit board of each of the lighting unit, LED driving 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 regardless of the voltage of the commercial power input, the constant voltage circuit is a pair of zener diodes or varistors in order to maintain a constant voltage against 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 the LED lighting device according to the present invention, Figure 2 is an enlarged perspective view of the main portion of the LED lighting device according to the present invention, Figure 3 is a cross-sectional view of the LED lighting device according to the present invention.

Referring to the drawings, the LED lighting device according to the present invention comprises a lighting unit (1A, 1B), and the connector portion 2 is coupled to close the end of each of the lighting unit (1A, 1B). Here, the lighting unit (1A, 1B) is arranged in the outermost in the configuration of the whole lamp, the terminal portion 3 is formed on one side end to be coupled to the socket terminal is provided with the connector portion 2 only on the other end It is divided into a side unit (1A) and a connecting unit (1B) is provided with a connector portion (2) at both ends in order to be connected to the inside of the terminal unit (1A) of the both sides by one or more. In particular, the LED lighting device according to the present invention in the most basic configuration is revealed that can be implemented and used as a lighting device only by combining the terminal side unit (1A) of both sides.

The lighting units 1A and 1B are arranged such that a plurality of LEDs L have a longitudinal direction inside the light transmissive covers 4A and 4B in a tubular shape, so that the light emitted from the LEDs L is a light transmissive cover ( 4A, 4B) and are outputted.

More specifically, each of the lighting units 1A, 1B is basically bonded to the inside of the base 5A, 5B in which the printed circuit board P, in which a plurality of LEDs L are arranged, has a longitudinal direction, and the base The light transmissive covers 4A and 4B are coupled to 5A and 5B so as to maintain their shape.

However, as described above, the terminal unit 1A is disposed on both sides of the connecting unit 1B and coupled to the terminal unit 3 on one side of each of the light transmission covers 4A and 4B in order to receive power supplied from the outside. ) Is combined. At this time, the terminal portion 3 has a configuration for coupling to the fluorescent lamp socket, the terminal portion 3 is electrically connected to the printed circuit board P (specifically LED) inside the terminal unit 1A of each terminal. It is natural to have a composition.

Here, the bases 5A and 5B of the units 1A and 1B are materials for dissipating heat generated when the LED L is driven 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 a configuration in which the cross-sectional shape is formed of a tubular tube-shaped tubular, in addition to the configuration of a polygonal shape such as an ellipse or a rectangular shape, or a light guide plate A surface light emitting member such as or the like may be applied. In particular, the connector part 2 which finishes the lighting units 1A and 1B to be described later may correspond to the shapes of the light transmitting covers 4A and 4B, and may be selectively formed among a garden type, an ellipse, and a polygonal shape.

In addition, the light transmission cover (4A, 4B) is based on a straight straight tube in the longitudinal direction in a variety of cross-sectional shape, formed into a bent tube bent at one or more points or selected in the form of a curved tube curved at a constant curvature It may be configured.

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 connector part 2 is installed at opposite ends in order to connect and extend the lighting units 1A and 1B in the longitudinal direction. In particular, the connector part 2 is installed in each of the lighting unit (1A, 1B) is divided into male and female, and the female and male connector 2 is set to extend the length according to the installation space and conditions, etc. Removably coupled to each other.

In order to implement such a configuration, the connector portion 2 is divided into female and male inserts 2A (male connector portion) and a receptor 2B (female connector portion).

The insert 2A is coupled to finish one side of the lighting unit (1A, 1B). Here, the insert (2A) is connected to the connection terminal 6A inside the electrically connected to a plurality of LED (L), the connection terminal (6A) is a protruding connection terminal of the receiver (2B) to be described later ( 6B) is configured to be inserted. In addition, the insert 2A is formed by forming at least one coupling groove 7 radially on an outer circumferential surface thereof.

The receptor 2B for correspondingly coupling with the insert 2A is coupled to close one side of the illumination units 1A, 1B opposite to the combined illumination units 1A, 1B. At this time, the receptor 2B has an inner space for inserting the insert 2A, and a pin-shaped connecting terminal 6B protrudes from the inside of the space toward the insert 2A. . In particular, the connection terminal 6B is naturally connected to the LED (L) inside the lighting unit (1A, 1B).

In addition, the receptor (2B) is a protrusion formed on the outer periphery of the coupling projection (8) detachably coupled to the coupling groove (7) of the insert (2A). Here, the coupling protrusion 8 is formed as a latching jaw of the shape of a wedge shape as shown in the figure, is formed at least one radially on the outer periphery of the receptor (2B) in the number corresponding to the coupling groove 7 of the insert (2A) It is composed.

Figure 4 is an exemplary view showing another embodiment of the present invention.

Referring to the drawings, the LED lighting device according to another embodiment of the present invention proposes a configuration in which a pleating member 9 is installed at the connector 2 so as to freely set the angles between the lighting units 1A and 1B coupled to each other. do.

The corrugation member 9 is configured to be freely bent between the ends of the insertion unit 2A or the light receiving unit 2B of the light receiving unit 1A, 1B and the end of the mutual coupling. Such a pleating member 9 may be configured by selectively applying to either side of the insert 2A or the receptor 2B or applying to both sides.

5 is another exemplary embodiment of the present invention.

Referring to the drawings, the LED illuminating device of another embodiment presents a configuration in which the light transmission covers 4A and 4B have a rectangular cross-sectional shape. Such light transmission covers 4A and 4B have improved straightness to emit light downward compared to that of the garden type, thereby enabling brighter lighting in the downward direction.

Due to this embodiment, the light transmitting covers 4A and 4B of the LED lighting device may be selectively formed in a cross section of a straight tube, elliptical, or polygonal. In addition, in connection with this configuration, the connector unit 2 closing the lighting units 1A and 1B may also be selectively formed among the garden, elliptical, and polygonal shapes corresponding to the cross-sectional shapes of the light transmitting covers 4A and 4B. Can be.

6 is a block diagram of an LED lighting device according to the present invention, FIG. 7 is a block diagram of an LED circuit configuration of the LED lighting device according to the present invention, and FIG. 8 is an actual circuit diagram of the LED lighting device according to the present invention.

9 is a perspective view of the LED arrangement of the LED lighting device according to the present invention, Figure 10 is a perspective view of the LED driving circuit unit of the LED lighting device according to the present invention, Figure 11 is a cross-sectional view of the LED lighting device according to the present invention.

12 is an exemplary LED diagram of the LED lighting device according to the present invention, Figure 13 is an 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 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.

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.

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

4 is another exemplary embodiment of the present invention.

5 is another exemplary embodiment of the present invention.

Figure 6 is a block diagram of the LED lamp device according to the present invention.

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

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

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

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

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

12 is an exemplary view of the LED of the LED lighting device according to the present invention.

13 is a LED connection diagram of the LED lighting device according to the present invention.

1 A: terminal unit (light unit)

1B: connecting unit (lighting unit)

2: Connector part 2A: Insert

2B: receptor 3: terminal portion

4A, 4B: Light transmission cover 5A, 5B: Base

6A, 6B: Connection terminal 7: Coupling groove

8: engaging protrusion 9: corrugated member

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

A plurality of LEDs (L) are disposed in the tubular light transmission cover (4A, 4B) having a longitudinal direction so that the light emitted from the LED (L) is transmitted through the light transmission cover (4A, 4B) A plurality of lighting units 1A, 1B;

In order to connect the lighting units 1A and 1B in the longitudinal direction, the male and female are divided and installed at the opposite ends to be detachably coupled to each other, and the LED L of each of the lighting units 1A and 1B is detachably connected to each other. LED lighting device having an extended connection configuration in the longitudinal direction comprising a; connector portion (2) provided with male and female connection terminals (6A, 6B) for electrical connection.

The method of claim 1, wherein the connector portion 2

Finishing one side of the lighting unit (1A, 1B) is coupled, the connecting terminal (6A) is coupled to the inside is electrically connected to a plurality of LED (L), the insert (2A) formed with a coupling groove (7) on the outer peripheral surface )Wow;

The insert 2A is coupled to finish one side of the lighting unit (1A, 1B) for coupling with the combined lighting unit (1A, 1B), and has an inner space for the insert (2A) is fitted, A connecting terminal 6B for correspondingly coupling with the connecting terminal 6B of the insert 2A is provided on the inner side, and the engaging projection 8 fitted into the engaging groove 7 of the insert 2A is provided on the outer periphery. Receptor (2B) formed; LED lighting device having an extended connection configuration in the longitudinal direction comprising a.

The method of claim 2, wherein the connector portion 2

A freely bendable corrugation member 9 is provided between the point where the lighting units 1A and 1B are coupled and the point where the male and female are coupled to each other. LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that selectively installed on any one or both sides.

The lighting unit (1A, 1B) according to any one of claims 1 to 3

A printed circuit board P having a plurality of LEDs L arranged inside the bases 5A and 5B having a longitudinal direction is coupled, and the side portions of the bases 5A and 5B in a direction in which the light of the LEDs L is emitted. LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that coupled to the light transmission cover (4A, 4B) for transmitting and transmitting light.

The light transmitting cover (4A, 4B) of claim 4

The cross-sectional shape of the tube is selectively formed among the garden type, the oval shape, and the polygonal shape, and the connector part 2 which closes the lighting units 1A and 1B corresponds to the cross-sectional shape of the light transmitting cover 4A and 4B. LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that formed selectively of the shape, oval, polygonal.

6. The light transmitting cover (4A, 4B) according to claim 5

LED lighting device having an extended connection configuration in the longitudinal direction, characterized in that the straight or straight tube in the longitudinal direction, or selected in the form of a bent tube bent at one or more points or a curved tube curved at a constant curvature.

The printed circuit board (P) of claim 1, wherein each of the lighting units (1A, 1B)

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 7, wherein

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 7, wherein

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 7 or 8, wherein the driving circuit unit 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 7, 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 7 or 11,

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.

9. The printed circuit board (P) according to any one of claims 1 to 7, 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 13 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.

15. The method of claim 14 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.