WO2011074884A2

WO2011074884A2 - Led panel and bar-type led lighting device using same

Info

Publication number: WO2011074884A2
Application number: PCT/KR2010/009001
Authority: WO
Inventors: 정상동; 임현철; 박진표; 황원철; 정규혁; 이재영; 윤태기
Original assignee: 주식회사 아모럭스
Priority date: 2009-12-16
Filing date: 2010-12-16
Publication date: 2011-06-23
Also published as: WO2011074884A3

Abstract

The present invention relates to a bar-type LED lighting device which converts AC power being applied from a fluorescent lamp socket into DC power, in a power supply panel that is provided within a housing, and which can ensure sufficient resistance insulation in an LED panel in a non-insulated power device. The present invention comprises: a housing which is hollow inside and which has an LED accommodating section formed on the outer surface on one side thereof; a first and a second cap which are coupled to the ends of the housing and which receive AC power as an input; a power supply panel which is built into the hollow section within the housing and which is for converting AC power to DC power; an LED panel which is mounted on the LED accommodating section and which has a plurality of LEDs mounted along the lengthwise direction of a substrate, and has an AC power line for providing the AC power applied from the electrode terminal of the first cap or the second cap to the power supply panel, and a DC power line for applying DC power to the LEDs; and a transparent cover, both edges of which are coupled to the LED accommodating section, and which is for protecting the LED panel.

Description

LED panel and bar type LED lighting device using the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting diode (LED) lighting device, which is a non-insulated interior of an AC power applied from the outside through an LED panel by applying a straight fluorescent lamp socket. The present invention relates to an LED panel and a bar-type LED lighting device that can ensure high insulation withstand voltage when delivered to a type power supply panel and improve assembly and productivity of the LED panel.

In the floodlight, landscape lighting, and advertising lighting market, various light sources such as fluorescent, neon, and halogen lamps have preoccupied in the past, but in recent years, LEDs are spotlighted as light sources in these fields. The reason why the LED is spotlighted as a light source is because of the device characteristics of the LED.

Conventional light sources emit light using mercury lamps, but LEDs are environmentally friendly because they do not use mercury, and maintenance costs are saved because they consume less power. In addition, the LED has a longer life than the conventional light source, excellent durability and robust characteristics.

In addition, the use of LEDs is being accelerated in that brightness and luminous efficiency are gradually improved and they are driven at low voltages, so that there is no risk of electric shock. In particular, it is widely used for outdoor and indoor lighting due to the applicability of LEDs and brilliant effects.

Representative indoor lighting devices include A-lamps with screw-type sockets, and LED lighting devices that replace light sources of straight fluorescent lamps (so-called fluorescent lamps) that use a luminaire (shade) with a pair of sockets installed at both ends. It is becoming.

Of these, the bar-shaped LED lighting device that replaced the fluorescent lamp with LED is divided into a product that can use a fluorescent lamp (shade) as it is and a product that uses a new lamp (shade).

The conventional general LED lighting device is a bar-shaped housing having a predetermined length, a printed circuit board (PCB) of a predetermined length installed inside the housing, and the PCB It is composed of a plurality of LEDs installed at regular intervals and emitting light, and a power supply unit for supplying power to the LEDs.

Such a bar-shaped LED lighting device (or light bar) is disclosed in Korean Patent Laid-Open Publication No. 10-2009-31417 having a bar-shaped housing structure including a power supply unit inside a housing and a connector provided at both ends of an existing fluorescent lamp. Bar type LED lighting apparatus is disclosed.

However, although the LED light source is supplied with power input from the connectors formed at both ends of the power supply provided in the housing, the path input from the connector to the power supply is not disclosed. Since each assembly is assembled along the outer circumferential surface, there is a drop in assembly and productivity, there is no moisture-proof, dust-proof cover, there is a restriction according to the environment of the area used.

In addition, the LED lighting device of the Patent Publication No. 10-2009-31417 proposes to set the inside of the tube to a vacuum in order to prevent the damage of the electronic control components due to condensation moisture in a cold environment.

However, this method first requires a vacuum setting process when assembling parts, and it is necessary that both ends of the tube have a special sealing structure for sealing the inside with a vacuum. There is a problem that it is difficult to set the interior to a vacuum.

In addition, Patent No. 10-0903305 also has a power supply is built in the inside of the pipe-shaped body formed with a plurality of heat radiation fins on the side and both sides thereof are sealed by a bracket, the rod-shaped in the LED receiving portion formed on the upper side of the body Disclosed is an LED illuminating device in the form of a straight fluorescent lamp equipped with an LED unit and a lens unit and a cover coupled to the uppermost side to protect the LED unit and the lens unit.

However, the LED lighting device has a structure for supplying power to the power supply device through a cable disposed inside the housing, thereby greatly reducing productivity when molding for waterproofing and insulation of the power supply device embedded in the housing. . In addition, since the LED lighting device is not a structure in which power input terminals are formed at both ends, the LED lighting device cannot be used as it is in a conventional fluorescent lamp.

In addition, the LED portion coupled to the upper portion of the housing to form a screw coupling hole having a large diameter of about 2.2mm in the upper surface of the LED portion to be screwed at the time of coupling, the metal screw is coupled and fixed to the screw coupling hole . Therefore, in such an LED unit, when an AC power line for introducing one side AC power is arranged, there is a problem that the insulation of the LED unit is greatly degraded. As a result, the LED lighting device cannot fully satisfy the 3 kV dielectric breakdown voltage requirement of the IEC (International Standard) when a non-isolated type power supply using 220V AC power is used.

Furthermore, Patent Publication No. 10-2009-78887 discloses a frame having a hollow portion, a light emitting means, a heat sink for transferring heat from the light emitting means to the frame, a transmission window covering the light emitting means and the heat sink, a power supply means for applying power to the light emitting means. A bar-shaped LED lamp having a has been proposed.

In addition, the application of power to the power supply means from the outside is made through a power connector disposed on one side of the LED lamp. Therefore, the LED lamp does not have a structure capable of receiving external AC power through the existing fluorescent lamps. In addition, the LED lamp uses a thermosetting resin to fix the light emitting means and the heat radiation fin to the connecting plate of the frame, there is a problem that the assembly productivity is inferior.

Accordingly, an object of the present invention is to provide an AC power supply to the non-isolated AC / DC converter embedded in the tubular housing through the LED panel mounted LED is installed in the existing fluorescent lamp luminaire applied through the pin-shaped electrode terminal of both ends The present invention provides an LED panel and a bar type LED lighting device using the same that can sufficiently secure the insulation voltage between the power line and the LED.

Another object of the present invention is to provide an LED panel and a bar type LED lighting device using the same, which can simply press-fix the LED panel to the housing without dropping the insulation breakdown voltage using a fixing piece made of synthetic resin.

Another object of the present invention is to minimize the diameter of the fixing piece insertion hole formed in the LED panel, to ensure the maximum wiring gap between the AC / DC power pattern and to perform insulation coating LED panel that can ensure the insulation breakdown voltage of the LED panel And to provide a bar type LED lighting device using the same.

Another object of the present invention is to provide an LED lighting device having a sealing structure in which electronic components can prevent damage caused by condensed water even if the lighting device is used in a cold environment.

In order to achieve the above object, the present invention is a housing having a hollow portion therein is an LED receiving portion is formed on one side of the outer surface and the bar shape is open at both ends; First and second caps respectively coupled to open ends of the housing and having two pin-type electrode terminals to receive AC power; A power supply panel embedded in the hollow part of the housing for converting the AC power input from the first and second caps into DC power; And a plurality of LEDs mounted on the LED accommodating part and mounted along the longitudinal direction of the substrate, and supplying AC power applied from one of the first and second cap electrodes to one side and the other side of the plurality of LEDs. An LED panel including one AC power line for supplying a power supply panel and first and second DC power lines arranged on the other side of the plurality of LEDs to apply DC power for driving the plurality of LEDs; It provides a bar type LED lighting device characterized in that.

In this case, the present invention preferably further comprises a transparent cover for protecting both the LED panel is coupled to the LED receiving portion of the housing.

The LED panel is slidably coupled to a pair of channel-shaped grooves formed at both ends of the LED accommodating portion of the housing, and the LED panel is a pair of channel-type flanges using a fixing piece having a pair of flanges at both sides. It is fixed by press-fitting into the groove.

The fixing piece is a pair of flanges protruding on both sides; A protrusion protruding upward between the pair of flanges and having a pair of jig insertion holes; And a fixing protrusion protruding downward between the pair of flanges, wherein the fixing protrusion is coupled to a fixing piece insertion hole formed in the LED panel and serves as a pivot axis when the fixing piece is pivoted.

And sealing means surrounding the power supply panel to seal the power supply panel.

In order to seal the power supply panel, the hollow portion of the housing in which the power supply panel is accommodated is molded with a sealing material.

It further comprises an angle changing means for changing the light irradiation angle of the LED lighting device to a predetermined angle.

The angle changing means may be coupled to both ends of the housing and the cylindrical cap housing having a fixing projection formed with an angle fixing hole in the inner circumference; A cap cover snap-coupled to an outer end of the cap housing and rotatably supported and having at least one angle adjusting hole set to coincide with the angle fixing hole; And a fixing screw for fastening one angle adjusting hole selected to coincide with the angle fixing hole and the angle fixing hole to maintain a set irradiation angle of the LED lighting device.

The first and second caps are respectively coupled to both ends of the housing and the cylindrical cap housing having a fixing projection for setting the coupling position of the power relay panel in the inner peripheral portion; And a cap cover coupled to an outer end of the cap housing and having a terminal PCB protruding through the pair of pin-shaped electrode terminals and fixedly supporting the pair of electrode terminals at an inner side thereof.

A variable resistor installed on the power relay panel and configured to adjust the light intensity of the LED lighting device; And a variable resistance adjusting hole provided in the cap housing at a position opposite to the variable resistor to adjust the resistance value of the variable resistor.

An optical sensor installed at the power relay panel and configured to detect an ambient light intensity; And an optical sensor hole provided in the cap housing at a position opposite to the optical sensor.

The LED panel is made of a metal material and a bar-shaped substrate; An AC power line arranged along one side of the substrate and configured to supply AC power applied from one of the electrode terminals of the first and second caps to the power supply panel; First and second DC power lines arranged along the other side of the substrate and applying DC power to drive the plurality of LEDs; And a plurality of LEDs arranged at intervals along the substrate and driven in series with first and second DC power lines.

The AC power lines and the second DC power lines of (-) polarity disposed outside are respectively disposed at a distance of at least 3 mm from both sides of the substrate.

In addition, the LED panel of the present invention is formed at intervals between the AC power line and the first DC power line of the (+) polarity disposed inside, the LED is connected in series to the first DC power line of the (+) polarity A plurality of heat dissipation patterns may be further included in contact with one side of the lower surface of the heat dissipation.

The LED panel includes a plurality of fixing piece insertion holes coupled to the fixing projections of the plurality of fixing pieces in order to fix the LED panel to the housing, wherein the plurality of heat radiation patterns are the AC power at each position where the fixing piece insertion holes are formed. It is desirable to be separated by a larger gap than the gap between the line and the first DC power line of positive polarity.

In order to increase the insulation breakdown voltage, the LED panel is preferably coated with an insulating material on both top and side surfaces on which the LED is mounted.

The 2-pin electrode terminal of the LED lighting device is used in combination with the socket of the fluorescent lamp.

According to another aspect of the present invention, the present invention is a housing having a hollow portion therein is formed with an LED receiving portion on one side of the outer surface and the bar shape is open at both ends; First and second caps respectively coupled to open ends of the housing and having two pin-type electrode terminals to receive AC power; A plurality of LEDs along a longitudinal direction and first and second DC power lines arranged on one side of the plurality of LEDs and to which DC power for driving the plurality of LEDs is applied are mounted on a substrate and coupled to the LED receiving portion. LED panel; And a power supply panel embedded in the hollow part of the housing and configured to convert AC power input through the electrode terminals of the first and second caps into DC power and supply the DC power to the LED panel. Provide LED lighting device.

According to another aspect of the present invention, the present invention provides a LED panel for a bar LED lighting device having a non-isolated AC / DC converter inside the housing and coupled to the LED receiving portion formed on one side of the housing, A bar substrate formed of a metal material; One AC arranged along one side of the substrate to supply AC power applied to the AC / DC converter from an electrode terminal provided in one of the first and second caps coupled to both ends of the housing. Power line; First and second DC power lines arranged along the other side of the substrate and to which DC power supplied to the AC / DC converter is applied to drive an LED; And a plurality of LEDs arranged at intervals along the substrate and driven in series with first and second DC power lines.

The AC power line and the second DC power line of (-) polarity disposed on the outside are each disposed at a distance of at least 3mm from both sides of the substrate.

It is formed at intervals between the AC power line and the first DC power line of the (+) polarity disposed inside, in contact with one side of the lower surface of the LED connected in series to the first DC power line of the (+) polarity, respectively It further comprises a plurality of heat radiation pattern is a heat radiation.

The LED panel includes a plurality of fixing piece insertion holes coupled to the fixing projections of the plurality of fixing pieces to fix the LED panel to the housing, wherein the plurality of heat dissipation patterns are the AC power at each position where the fixing piece insertion holes are formed. It is characterized by being separated by a larger interval than the distance between the line and the first DC power line of the positive polarity.

As described above, in the present invention, a non-isolated power supply panel (AC / DC converter) is provided inside the housing, and the LED can be driven by a DC-converted power supply by receiving AC power using a conventional fluorescent lamp. Provides convenience.

To this end, in the present invention, the AC power line is installed in the existing fluorescent lighting fixtures when the AC power is applied to the non-insulated AC / DC converter embedded in the tubular housing through the LED panel mounted LED is applied through the pin-type electrode terminal of both ends Designed to ensure sufficient insulation breakdown voltage between

The IEC (International Standard) requires a 3 kV dielectric strength requirement when lighting equipment uses a non-isolated power supply with a 220 V AC power supply.

To this end, in the present invention, by simply fixing the LED panel to the housing without dropping the insulation breakdown voltage using a fixing piece made of synthetic resin, at the same time minimizing the diameter of the fixing piece insertion hole formed in the LED panel and wiring between AC / DC power patterns Insulation withstand voltage of LED panel can be secured by insulating coating with maximum gap.

In addition, in the present invention, even if the lighting apparatus is used in a cold environment, it is possible to prevent the electronic components from being damaged due to condensation moisture.

1 is a perspective view of a bar type LED lighting apparatus according to an embodiment of the present invention,

Figure 2 is an exploded perspective view of the bar type LED lighting apparatus of Figure 1,

3 is an enlarged view showing a power pattern of the LED panel of FIG. 2;

4 to 6 are process explanatory diagrams for explaining the fixing method of the LED panel shown in FIG.

7 is a cross-sectional view taken along the line II of FIG. 6;

8 to 10 is an assembly process showing the assembly process of the bar type LED lighting apparatus according to the present invention.

Hereinafter, with reference to the accompanying Figures 1 to 7 will be described in detail a preferred embodiment of the present invention.

1 is a perspective view of a bar type LED lighting apparatus according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the bar type LED lighting apparatus of Figure 1, Figure 3 is a power line pattern of the LED panel shown in FIG. Is an enlarged view.

1 to 3, the bar type LED lighting device 1 of the present invention is coupled to both ends of the cylindrical housing 10, the housing 10, the electrode terminal is coupled to the socket provided in the fluorescent lamp First and

second caps

40 and 50 having 41 and 51, an LED panel 20 coupled to one side of the housing 10 and mounted with a plurality of LEDs 21, covering the LED panel. It includes a transparent cover 60, and a power supply panel 70 installed in the housing 10.

The bar type LED lighting device 1 of the present invention uses a fluorescent lamp which is widely used in the related art, but since the LED lighting device 1 includes a power supply panel 70 such as an AC / DC converter, a separate ballast is provided. It doesn't need ballast.

The housing 10 has a substantially cylindrical or pipe shape, which is formed in a lengthwise direction through the center thereof and has a hollow portion 12 having an approximately circumferential inner circumference portion to accommodate the power supply panel 70 therein. One side of the outer circumference of the housing is formed with an LED accommodating portion 14 in which the upper part and the front and rear parts are opened. In addition, both side surfaces of the LED receiving portion 14 of the housing 10 is provided with a channel groove 13 for inserting and fixing both ends of the LED panel 20 in the longitudinal direction in a sliding manner.

In addition, the housing 10 has a plurality of heat dissipation fins 11 are formed in the radial direction spaced apart in the radial direction along the outer peripheral surface surrounding the hollow portion 12, the outer profile of the plurality of heat dissipation fins 11 is circular To achieve.

The LED PCB 23 on which the housing 10 and the plurality of LEDs 21 of the LED panel 20 are mounted is preferably made of Al or an Al alloy as a metal material having excellent thermal conductivity.

In this case, when the LED panel 20 in which the plurality of LEDs 21 are mounted on the LED accommodating portion 14 is mounted, the housing 10 has a plurality of heat dissipation fins 11 to increase the area of the outer circumferential surface. It serves as a heat sink to more efficiently radiate the heat generated from the LED (21).

The housing 10 receives the AC power input from the

electrode terminals

41 and 51 of the first and

second caps

40 and 50 coupled to the sockets of the fluorescent lamp, and converts the LED into DC power. 21 is a power supply panel 70, that is, AC / DC converter is supplied.

The power supply panel 70 may be sealed by enclosing the outside using a sealing means, for example, an insulating tape for sealing, and a hollow part of a housing in which the power supply panel 70 is accommodated, if necessary. (12) can be molded with a sealing material.

In addition, an LED panel 20 having a plurality of LEDs 21 electrically connected to the power supply panel 70 to emit light is fixed to the LED accommodating portion 14 of the housing 10 along the longitudinal direction. .

In addition, the housing 10 is coupled to a transparent cover 60 formed on the top of the LED receiving portion 14 to cover them to protect the LED panel 20.

As shown in FIG. 4, the LED panel 20 is slidably coupled to a pair of channel-type grooves 13 formed at both ends of the LED receiving portion 14 of the housing, and the LED panel 20 has a pair of flanges at both sides. Using a fixing piece 30 having a 32, a pair of flanges 32 are press-fitted to a pair of channel-type grooves 13 and fixed as shown in FIGS.

Of course, a cover insertion groove 15 (refer to FIG. 7) is formed on the outer side of the channel recess 13 in the upper inner side of the LED accommodating portion 14, so that the cross-section of the bar-shaped cover 60 is curved. Both ends are fitted together. The material of the cover 60 is, for example, preferably made of a transparent acrylic material, but is not limited to the material in the present invention.

The first and

second caps

40 and 50 are coupled to both open ends of the housing 10 and have

respective electrode terminals

41 and 51 for receiving AC power from a socket of a fluorescent lamp. An angle changing means is provided to adjust the irradiation angle of the panel 20.

First, the first cap 40 is composed of a cap housing 44 and the cap cover 43. The female connector 47, the male connector 46, and the power relay panel 49 fixed to one end of the power supply panel 70 are inserted into the cap housing 44. In addition, the cap cover 43 is formed with a terminal PCB 48 on one side and an electrode terminal 41 on the other side.

Here, the male connector 46 is connected to the female connector 47 and is inserted and fixed to the connector receiving portion 47a provided on one side of the cap housing 44.

The power relay panel 49 has a fixing hole 49c guided to the fixing protrusion 44b provided on the other side of the cap housing 44 to be inserted into the cap housing 44 to be sealed.

The inner circumferential surface of the cap housing 44 is formed with a circular groove in the portion where the cap cover 43 is coupled. Therefore, the cap cover 43 is fixed to the cap housing 44 by snap coupling. As a result, the cap cover 43 is rotatable in the assembled state to the cap housing 44.

In addition, the cap cover 43 is formed with

angle adjusting holes

42a, 42b, 42c along the circumference for changing the irradiation angle of the LED 21, any of the

angle adjusting holes

42a, 42b, 42c. The angle is adjusted by screw assembly so that one hole and the angle fixing hole 44a constituting the inner circumferential surface of the fixing protrusion 44b of the cap housing 44 communicate with each other.

In this case, if the angle adjustment hole (42b) located in the center is assembled to match the fixing projection (44b), the assembly is made in a normal state, if the angle adjustment hole (42a) is assembled to match the fixing projection (44b) half In the clockwise direction, for example, the irradiation direction of the LED 21 at 30 degrees to 45 degrees is changed.

That is, the angle changing means is coupled to both ends of the housing and the cylindrical cap housing 44 and the outer side of the cap housing 44 having a fixing protrusion 44b having an angle fixing hole 44a formed in the inner circumference thereof. A cap cover 43 having at least one

angle adjustment hole

42a, 42b, 42c snap-coupled to an end and rotatably supported and set to coincide with the angle fixing hole 44a; And a fixing screw (not shown) for maintaining the set irradiation angle of the LED lighting device by fastening one angle adjusting hole selected to coincide with the angle fixing hole 44a and the

angle fixing holes

42a, 42b, and 42c. It includes.

On the other hand, the power relay panel 49 is composed of a sensor PCB (49a), a variable resistor (49b) and an optical sensor (49e), the variable resistance control portion 49d protrudes on the upper portion of the variable resistor (49b) And a fixing hole 49c for fixing to the cap housing 44 under the sensor PCB 49a.

The light sensor 49e is installed to sense the light intensity of the area where the lighting device 1 is installed, and the control unit may automatically turn off the lighting device 1 according to the light sensing result. For example, it can be used to turn off the lighting device 1 when it is daytime. In addition, the variable resistance controller 49d may adjust the light intensity of the LED 21 by adjusting the resistance value of the variable resistor 49b to set the light intensity desired by the user.

For example, the variable resistor 49b may achieve a power saving effect by differently adjusting the brightness of the relatively bright window and the relatively dark inner side at the place where the plurality of lighting devices 1 are installed.

Similarly, the second cap 50 has the same configuration as the first cap 40 except for the power relay panel 49. That is, the second cap 50 is equipped with a cap housing 54, the terminal PCB 55 on one side and the electrode terminal 51 on the other side, and forms the angle adjusting holes (52a, 52b, 52c) It consists of a cap cover 53.

One AC power input from the electrode terminal 41 of the first cap 40 is first applied to the terminal PCB 48 and then the sensor PCB 49a from the terminal PCB 48 through a lead wire (not shown). Is applied to. The other AC power input from the electrode terminal 51 of the second cap 50 is applied to the AC power line 24 formed in the LED panel 20 through the terminal PCB 55 and the lead wire, and then again. It is delivered to the sensor PCB 49a.

The outer peripheral surface of the cap housing 44 is provided with an optical sensor hole 45a facing the optical sensor 49e and a variable resistance adjusting hole 45b facing the variable resistance adjusting portion 49d.

A male connector 46 is mounted on the sensor PCB 48, and a pair of AC power inputs from the

electrode terminals

41 and 51 of the first and

second caps

40 and 50 are connected to the male connector 46. It is connected to the female connector 47 mounted on the power supply panel 70 through the power supply panel 70 is applied.

On the other hand, the power supply panel 70 is mounted with a conversion circuit element 71 including an AC / DC conversion circuit for converting AC (AC) power of general 110-220V into DC (DC) power, preferably insulated. In the state wrapped with a film or the like is inserted into the hollow portion 12 inside the housing 10.

The power supply panel 70 receives AC power from each of the

electrode terminals

41 and 51 of the first and

second caps

40 and 50, converts it into DC power, and converts it into DC power. DC power is applied to the (+) and (-)

DC power lines

25 and 26 of the LED panel 20 through lead wires (not shown). The plurality of LEDs 21 electrically connected to the

DC power lines

25 and 26 emit light.

Here, the power supply panel 70 is connected to receive the AC power directly from the electrode terminal 41 of the first cap 40, the LED panel from the electrode terminal 51 of the second cap 50. It is connected to receive the input through the AC power line 24 patterned in (20).

The bar type LED lighting device 1 of the present invention includes a pipe-shaped housing 10 of which diameter is limited to approximately 20 mm in order to use an existing fluorescent lamp or a pair of fluorescent lamp sockets, thereby accommodating the LED of the housing 10. The width of the LED panel 20 provided in the unit 14 also has a narrow width correspondingly.

In the present invention is coupled to the existing fluorescent lamp socket to receive AC power from the

electrode terminals

41 and 51 of the first and

second caps

40 and 50 coupled to both ends of the housing 10, the power relay panel 49 AC power line 24 is further formed on the narrow LED panel 20 to receive one side AC power from the electrode terminal 51 located at the opposite side of the side).

In addition, the power supply panel 70 is embedded in the housing 10, and receives the AC power from the outside through the electrode terminals (41, 51) of the first and second caps (40, 50) LED panel It is a non-isolated type power supply that is not grounded externally because it supplies DC power to (20).

Therefore, since the power supply panel 70 of the present invention is configured as a non-insulated type, the LED panel 20 to which AC power is applied has a dielectric breakdown voltage in accordance with the International Standard (IEC) when compared to an insulating type device. More than 3 times higher than 3kV should be secured. Therefore, the power line formed in the LED panel 20 needs to ensure the maximum width between the power lines for insulation, and also requires a screw hole or a fixing hole for fixing the LED panel 20 to the housing 10. Is required to have a minimum diameter.

In the present invention, the fixing piece 30 made of synthetic resin is used instead of the screw made of metal to fix the LED panel 20 to the housing 10, whereby the insertion protrusion 31 of the fixing piece 30 is pivoted. The fixing piece insertion hole 22 is formed in the LED panel 20.

In the following description, the fixing piece insertion hole 22 is formed as an example. However, the fixing piece insertion hole 22 may be omitted, and a bond may be bonded using a thermal paste, a thermal pad, a thermal grease or a thermal epoxy. Do.

The LED panel 20 uses a metal PCB whose surface is insulated on an Al plate having excellent thermal conductivity as shown in FIG. 3 as the LED PCB 23, and a plurality of LEDs using the LED PCB 23 as a lower substrate. A plurality of LED bonding pads 28 are formed to mount 21 on one side, and a plurality of LEDs 21 are mounted thereon. In addition, in the LED panel 20, one AC power line 24 for applying AC power input from the electrode terminal 51 of the second cap 50 to the power supply panel 70 is patterned in a straight line shape. (+) And (-)

DC power lines

25 and 26 for supplying the DC power input from the power supply panel 70 to the plurality of LEDs 21 are patterned.

A plurality of LEDs are connected in series with the positive and negative

DC power lines

25 and 26. For this purpose, the negative DC power line 26 is formed in a linear pattern, and the positive DC power line is provided. Reference numeral 25 is separated for each portion on which the LED 21 is mounted, and a bonding pad 28 without an insulating film is formed at the end of the separated opposite (+) DC power supply line 25.

In addition, a plurality of heat dissipation patterns 27 for conducting / dissipating heat generated from the LED 21 by contacting a portion of the LED 21 between the (+) DC power line 25 and the AC power line 24. ) Is formed intermittently.

In the space between the heat dissipation pattern 27, a fixing piece insertion hole 22 into which the insertion protrusion 31 of the fixing piece 30 for fixing the LED panel 20 to the housing 10 is inserted is formed. (See Figure 4).

The fixing piece 30 is preferably manufactured using a synthetic resin that is an insulating material.

The heat dissipation pattern 27 is patterned in a partially cut form to form the fixing piece insertion hole 22 formed at predetermined intervals, and the positive DC power line 25 adjacent to the fixing piece insertion hole 22 is The pattern is narrowly formed with a minimum width. The upper part of the LED panel 20 in which these patterns are formed is insulated by an insulation coating or the like to form a final LED panel 20 in which a plurality of LEDs 21 are mounted. In order to increase the insulation breakdown voltage, the LED panel 20 is coated with an insulating material on both top and side surfaces on which the LED is mounted.

In addition, the heat dissipation pattern 27 formed between the AC power line 24 and the

DC power lines

25 and 26 serves as a heat sink to dissipate heat generated from the LED 21.

Hereinafter, a method of securing an insulation breakdown voltage of 3 kV or more according to the International Standard (IEC) for the LED panel 20 in which a plurality of LEDs 21 are mounted on the LED PCB 23 will be described in detail.

The bar type LED lighting device 1 of the present invention uses a pipe-shaped housing 10 of which diameter is limited to approximately 20 mm in order to use an existing fluorescent lamp, so that the LED is inserted into and coupled to one side of the outer circumference of the housing 10. The width of the panel 20 is also correspondingly set to a narrow width L ₁ , for example 12 mm.

In order to fix the LED panel 20 to the housing 10, the LED panel 20 forms a fixing piece insertion hole 22 having a diameter of about 1 mm at predetermined intervals.

First, the distance L ₁ between the AC power line 24 and the edge (side) of the LED panel 20 and the distance L ₅ between the DC power line 26 and the edge (side) of the LED panel 20. ) 3mm each for insulation voltage of 3kV or more.

In this case, since the diameter L ₄ of the fixing piece insertion hole 22 is 1 mm in the remaining 6 mm width of the LED panel 20, the distance L ₂ between the fixing piece inserting hole 22 and the AC power line 24. 1.6mm, the distance between the fixing piece insertion hole 22 and the DC power line 25 (L ₃ ) to ensure 1.6mm, the remaining 1.8mm AC power line 24 and DC power lines (25, 26) Assigns the width of.

As the LED panel 20 is formed, the distance between each power line, the distance between the power line and the edge of the LED panel, the distance between the fixing insertion hole and the power line, and the distance between the bonding pad and the housing are secured. The insulation breakdown voltage of the LED panel 20 to be guaranteed in the insulation type power supply panel 70 was secured to 3 kV or more.

In addition, when the insulation coating is applied to the LED panel 20 thus formed by various methods described below, it was confirmed that the insulation breakdown voltage was secured to 3.5 kV or more.

First of all, in the case of a paraline coating, a paraline coating is performed on the front surface of the LED panel 20. The parallel coating is coated with a uniform thickness up to the edge portion of the lens (not shown) having the curvature of the LED 21. The paraline coating is dried for 4-6 hours after the paraline addition. After the parallel coating was completed, the dielectric breakdown voltage of each of the above-described portions L1 to L5 was measured, and the dielectric breakdown voltage of 3.5 to 4.0 kV was measured.

In the case of spray coating, spray coating may be performed using a liquid polymer on the front surface of the LED panel 20. Spray coating is performed on the front of the LED panel 20 and dried at 90 ° C for 10 minutes. After the spray coating was completed, the dielectric breakdown voltage was measured, and the dielectric breakdown voltage of 3.5kV-4.0kV was measured.

Finally, in the case of silicone coating, after molding with silicon, dried at room temperature and heat-treated at 90 ℃ 10 minutes. After the silicon coating was completed, the insulation breakdown voltage was measured, and an insulation breakdown voltage of 3.5 kV was measured.

As described above, the LED panel has an insulation voltage of 3.5 kV or more when additional insulation coating is performed, and when using a non-isolated power supply using 220 V AC power, 3 kV insulation required by IEC (International Standard) is required. It was confirmed that the pressure resistance requirement could be sufficiently satisfied.

Meanwhile, a state in which the LED panel 20 is coupled to the housing 10 through the fixing piece 30 will be described with reference to FIGS. 4 to 7.

4 to 6 are process explanatory diagrams for explaining the fixing method of the LED panel shown in FIG. 2, and FIG. 7 is a cross-sectional view taken along the line II of FIG. 6.

4 to 6, the fixing piece 30 has an elliptical flange 32 and a protrusion 33 above the flange 32. The fixing piece 30 has a pair of jig insertion holes 34 for inserting the assembly jig through the protrusion 33 and is fixed between the pair of jig insertion holes 34 in the lower portion of the flange 32. The protrusion 31 protrudes.

First, as shown in FIG. 4, both side surfaces of the LED panel 20 are inserted into the channel-shaped groove 13 provided in the LED receiving unit 14 of the housing 10 by sliding the assembly. Thereafter, as shown in FIG. 5, the flange 32 of the fixing piece 30 is aligned in the longitudinal direction of the channel groove 13, and the fixing piece 30 is inserted into the fixing piece insertion hole 22 of the LED panel 20. Insert the insertion protrusion 31 of).

In this state, as shown in FIG. 6, when the fixing piece 30 is rotated 90 degrees, as shown in FIG. 7, both ends of the flange 32 of the fixing piece 30 are moved into the channel-type groove 13. The LED panel 20 is fixed by being forcedly coupled.

In this case, the fixing piece 30 for fixing the LED panel 20 to the LED receiving portion 14 of the housing 10 may have a different shape and structure.

In addition, the LED panel 20 is coupled to the housing by fastening screws to screw insertion holes at predetermined intervals when the lighting device is not a non-insulated type, for example, when the power supply device is separately disposed in a fluorescent lamp or the like. It is also possible.

When the insertion of the LED panel 20 is completed in this way, as shown in FIG. 8, the cap housing 44 is coupled to one side to insert the power supply panel 70 into the hollow portion 12. The cap housing 44 is accommodated in a state in which the female connector 47 is mounted on the power supply panel 70 in the connector accommodating portion 47a provided on one side, and is coupled to the power supply panel 70.

Thereafter, as shown in FIG. 9, the power relay panel 49 is coupled into the cap housing 44. One side of the sensor PCB 49a is mounted with a male connector 46 for connecting to the female connector 47 inside the cap housing 44, and the other side is mounted with an optical sensor 49b. A lower portion of the sensor PCB 49a is guided by the fixing protrusion 44b of the cap housing 44 to form a fixing hole 49c to be coupled to the inside of the cap housing 44.

Accordingly, the power relay panel 49 is guided by the fixing hole 44c of the cap housing 44 and coupled to the inside of the cap housing 44.

In this way, after the power relay panel 49 is coupled, the cap cover 43 is sealed as shown in FIG. 10. The cap cover 43 snaps one of the

angle adjusting holes

42a, 42b, and 42c formed along the circumferential direction so as to communicate with the angle fixing hole 44a of the cap housing 44.

Since the second cap 50 is similarly coupled, detailed descriptions are omitted. However,

angle adjusting holes

52a, 52b, 52c of the second cap 50 and angle adjusting holes 42a of the first cap 40 are omitted. The irradiation angle of the LED 21 can be set by combining the

pairs

42b and 42c so as to communicate with each other.

As described above, the present invention forms the AC power pattern on the LED panel for driving the LED to receive the AC power from both ends of the existing fluorescent lamp for supplying the DC power inside the lighting device, the same structure as the conventional fluorescent tube By adopting the power terminal of the terminal as it is, it is possible to receive the power supply for user convenience.

In addition, an optimal AC / DC converter for driving the LED may be provided in the power supply panel to minimize power consumption.

Furthermore, by using a fixing piece that can be forcedly coupled to the LED panel in the housing, the fastening hole can be minimized in the LED panel to improve insulation. The angle can be adjusted easily.

On the other hand, in the above embodiment, the AC power pattern is formed on the LED panel to transfer the AC power applied to the electrode terminal of the one side cap to the power supply panel, but the insulation voltage requirement required for the non-insulated power supply device. Of course, it is also possible to transfer the AC power applied to the power supply panel using a cable from the electrode terminal of one side cap to easily solve the problem.

The lighting device of the present invention is applied to a bar-shaped LED lighting device that can use a fluorescent lamp or a fluorescent lamp socket installed in an existing building by replacing the existing fluorescent lamp having a two-pin electrode terminal.

Claims

A housing having a hollow portion and having an LED receiving portion formed at one outer surface thereof, and having open ends;

First and second caps respectively coupled to open ends of the housing and having two pin-type electrode terminals to receive AC power;

A power supply panel embedded in the hollow part of the housing for converting the AC power input from the first and second caps into DC power; And

A plurality of LEDs are mounted in the LED accommodating part and mounted along the longitudinal direction of the substrate, and the AC power applied from one of the first and second cap electrode terminals is provided at one side and the other side of the plurality of LEDs. An LED panel including one AC power line for supplying to a supply panel and first and second DC power lines arranged on the other side of the plurality of LEDs to apply DC power for driving the plurality of LEDs; Bar type LED lighting device characterized in that.
The method of claim 1,

Bar type LED lighting device, characterized in that the both ends are further coupled to the LED receiving portion of the housing to protect the LED panel.
The LED panel of claim 1, wherein both ends of the LED panel are slidably coupled to a pair of channel-shaped grooves formed at the LED receiving portion of the housing.

The LED panel is a bar type LED lighting device, characterized in that by using a fixing piece having a pair of flanges on both sides by pressing a pair of flanges to a pair of channel-type grooves.
The method of claim 3, wherein the fixing piece

A pair of flanges protruding on both sides;

A protrusion protruding upward between the pair of flanges and having a pair of jig insertion holes; And

Including a fixing protrusion protruding downward between the pair of flanges,

The fixing projection is a bar type LED lighting device, characterized in that coupled to the fixing piece insertion hole formed in the LED panel to act as a pivot axis when the fixing piece swings.
The bar type LED lighting device of claim 1, further comprising sealing means surrounding the power supply panel to seal the power supply panel.
The bar type LED lighting apparatus according to claim 1, wherein the hollow part of the housing in which the power supply panel is accommodated is molded with a sealing material to seal the power supply panel.
The bar type LED lighting device of claim 1, further comprising angle changing means for changing the light irradiation angle of the LED lighting device to a predetermined angle.
The method of claim 7, wherein the angle changing means

A cylindrical cap housing coupled to both ends of the housing and having a fixing protrusion having an angle fixing hole formed at an inner circumference thereof;

A cap cover snap-coupled to an outer end of the cap housing and rotatably supported and having at least one angle adjusting hole set to coincide with the angle fixing hole; And

And a fixing screw for fastening the angle adjusting hole selected to coincide with the angle fixing hole and the angle fixing hole to maintain a set irradiation angle of the LED lighting apparatus.
The method of claim 1, wherein the AC power applied from the AC power line and the other electrode terminal of the first and second caps is transferred to the power supply panel and the DC power is supplied to the first and second DC power supplies of the LED panel. Bar type LED lighting device, characterized in that it further comprises a power relay panel for transmitting to the line.
The method of claim 1, wherein the first and second caps are respectively

A cylindrical cap housing coupled to both ends of the housing and having a fixing protrusion for setting a coupling position of the power relay panel at an inner circumference thereof;

And a cap cover coupled to an outer end of the cap housing, the cap cover having a terminal PCB protruding through the pair of pin-shaped electrode terminals and fixedly supporting the pair of electrode terminals on the inner side thereof.
11. The apparatus of claim 10, further comprising: a variable resistor installed on the power relay panel to adjust the light intensity of the LED lighting device; And

Bar type LED lighting apparatus further comprises a variable resistance adjusting hole provided in the cap housing of the position opposite to the variable resistor in order to adjust the resistance value of the variable resistor.
11. The apparatus of claim 10, further comprising: an optical sensor installed at the power relay panel and configured to sense light intensity in the surroundings; And

Bar type LED lighting device further comprises an optical sensor hole provided in the cap housing of the position facing the optical sensor.
The method of claim 1, wherein the LED panel

A bar substrate formed of a metal material;

An AC power line arranged along one side of the substrate and configured to supply AC power applied from one of the electrode terminals of the first and second caps to the power supply panel;

First and second DC power lines arranged along the other side of the substrate and applying DC power to drive the plurality of LEDs; And

And a plurality of LEDs arranged at intervals along the substrate and driven in series with first and second DC power lines.
The bar type LED lighting apparatus of claim 13, wherein the AC power line and the second DC power line having a negative polarity disposed outside are arranged at a distance of at least 3 mm from both sides of the substrate. .
The lower portion of the LED of claim 13, wherein the lower portion of the LED is connected to the AC power line and the first DC power line having a positive polarity disposed therebetween and connected in series with the first DC power line having a positive polarity. Bar type LED lighting device, characterized in that it further comprises a plurality of heat dissipation patterns are in contact with each side of the surface to radiate heat.
The method of claim 15, wherein the LED panel comprises a plurality of fixing piece insertion holes coupled to the fixing projections of the plurality of fixing pieces to secure the LED panel to the housing,

The plurality of heat dissipation patterns may be separated at intervals greater than a distance between the AC power line and the first DC power line having a positive polarity at each position where the fixing piece insertion hole is formed. Lighting equipment.
The LED lighting device of claim 13, wherein the LED panel is coated with an insulating material on both top and side surfaces of which the LED is mounted to increase insulation breakdown voltage.
A housing having a hollow portion and having an LED receiving portion formed at one outer surface thereof, and having open ends;

First and second caps respectively coupled to open ends of the housing and having two pin-type electrode terminals to receive AC power;

A plurality of LEDs along a longitudinal direction and first and second DC power lines arranged on one side of the plurality of LEDs and to which DC power for driving the plurality of LEDs is applied are mounted on a substrate and coupled to the LED receiving portion. LED panel; And

A bar type LED, comprising: a power supply panel embedded in the hollow part of the housing and configured to convert AC power input through the electrode terminals of the first and second caps into DC power and supply the DC power to the LED panel; Lighting equipment.
In the LED panel for LED lighting device having a non-insulated AC / DC converter inside the housing coupled to the LED receiving portion formed on one side of the housing,

A bar substrate formed of a metal material;

One AC arranged along one side of the substrate to supply AC power applied to the AC / DC converter from an electrode terminal provided in one of the first and second caps coupled to both ends of the housing. Power line;

First and second DC power lines arranged along the other side of the substrate and to which DC power supplied to the AC / DC converter is applied to drive an LED; And

And a plurality of LEDs arranged at intervals along the substrate and driven in series with first and second DC power lines.
20. The bar type LED lighting device of claim 19, wherein the AC power line and the second DC power line having a negative polarity disposed outside are arranged at a distance of at least 3 mm from both sides of the substrate. LED panel.
20. The LED of claim 19, wherein the lower portion of the LED is formed at a distance between the AC power line and a first DC power line having a positive polarity disposed therein, and connected in series to the first DC power line having a positive polarity. LED panel for a bar type LED lighting device, characterized in that it further comprises a plurality of heat dissipation patterns are in contact with each side of the surface to radiate.