KR101408248B1 - Led module connected each other - Google Patents

Abstract

The present invention relates to a light-emitting diode (LED) lighting device for a media facade which presents various advertisements or a work of art using a plurality of LEDs, and, more specifically, to an inter-connectable LED lighting device comprising a housing including a light source assembly and a coupling assembly, which enables a person to couple and decouple multiple housings easily using the coupling assembly and has a simple structure to be inexpensive and easy to install and maintain. The inter-connectable lighting device comprises: a housing including an upper body and a lower body combined to the upper body; and a light source assembly including a support unit combined between the upper body and the lower body, a light emitting unit combined to the support unit and consisting of one or more LEDs, and a cable connected to the light emitting unit. The inter-connectable lighting device further comprises a coupling assembly coupled to the housing and enabling multiple housing to be coupled to each other.

Description

LED lighting device capable of mutual connection {LED MODULE CONNECTED EACH OTHER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED lighting apparatus for a media facade that displays various advertisements or works of art using a large number of LEDs (Light Emitting Diodes) mounted on an outer wall of a building, The housing is provided with a coupling assembly to facilitate coupling and disconnection between the housings through the coupling assembly when the housings are connected in a plurality, and the LED lighting ≪ / RTI >

In general, a plurality of LED lighting apparatuses are installed to install a media facade that is mounted on an outer wall of a building to express various advertisements or works of art. .

Here, the media facade is a complex word of 'Facade' and 'Media' that refers to the outside of buildings. It is the implementation of media functions by installing LED lighting on the outer wall of the building. It refers to the case to utilize. It is a form of digital signage because it uses urban architecture as a visual medium as well as an information delivery medium. It is a new trend of 21st century architecture that combines lighting, image and information technology (IT).

In addition, the media facade uses a plurality of LED lighting apparatuses to be used for various spaces such as a general wall as well as an outer wall of a building, and uses a plurality of LED lighting apparatuses for the media facade Patent No. 10-2009-0048111 "Decorative tile LED block".

The above-mentioned prior art has an upper case having a plurality of light transmitting portions disposed at equal intervals on the upper surface and being transparently processed to transmit the irradiated light, and a plurality of fastening portions formed at a predetermined interval between the light transmitting portions, A lower case coupled to the upper case at a lower portion thereof and a plurality of LEDs disposed at positions corresponding to the plurality of light transmitting portions, and a circuit for driving the plurality of LEDs is disposed at a lower portion thereof; And a tile fastening portion formed on the lower surface of the upper case and the lower case, the plurality of tiles having the tile light transmitting portion corresponding to the light transmitting portion, And a tilting device for tilting the four- It is time.

However, in the related art, there is a problem that when one block constituting a plurality of LEDs is coupled to each other, they are fastened together by a fastening screw, which is inconvenient for use in connection and disconnection.

Also, there is a structure for implementing a media facade in the prior art 10-2011-0098317,

The mobile unit includes at least one mobile unit, a light emitting unit coupled to a front end of the mobile unit, a housing for fixing the mobile unit, and a controller for controlling the operation of the mobile unit and the light emitting unit, A moving shaft reciprocating in a predetermined direction, and an actuator for driving the moving shaft,

Wherein a front end of the moving unit is coupled to the housing by elastic means, the light emitting means is coupled to the moving unit by a ball bearing, a diffusion plate is provided at the front end of the light emitting means, The present invention provides a structure for implementing a media facade.

However, in the related art, a plurality of light emitting units are coupled to one housing, and the number of light emitting units can be specified according to the size of the housing. Thus, a housing having various sizes is required to realize various sizes of media facades have.

Therefore, in order to overcome such a problem, there has been developed a technique for mutually coupling LED lighting apparatuses. Such prior arts are disclosed in Korean Patent Application No. 10-2010-0129844 entitled " LED block lighting apparatus " and registered utility model 20-0382310 Quot; LED sign assembly member and a billboard using the same. &Quot;

The LED block lighting device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 10-2010-019844 has a built-in battery or an external power source, and a power line pattern is exposed to the outside, and the power line pattern is connected to the battery unit or external power source And a slave block coupled to the master block and having an LED for emitting light to the outside, wherein the slave block includes a slave power line coupled to a power line pattern of the master block, And a connecting means for connecting the slave power line pattern and the LED of the slave is formed so that when the master block and the slave block are coupled, the power line pattern of the master block and the slave block When the power line pattern is turned on, the power of the master block is set to L ED, one side of which is coupled to the power line pattern of the master block, and the other side of which is provided with power line patterns connected to the power line pattern of the slave block, and the power line patterns of the one side and the power line patterns of the other side The patterns further include connection blocks which are electrically connected to each other, one side of the connection block being flush with the other side or inclined,

The above-mentioned prior art registration utility model No. 20-038230, " LED sign assembly member and billboard using the same " is a pattern according to the standard on a circuit board of a standard body formed with a contact hole for connecting / An insulating casing in which a plurality of LEDs are array-connected, an insulating casing in which the LED block is accommodated, and a cable separator is formed on a circumferential wall opposite to the power cable through the LED block accommodating space, A fixed pin terminal electrically connecting the circuit board to a power cable covered in the insulated casing, and a fixing pin terminal electrically connected to the insulated casing in which the LED block is housed, Waterproof to fill only the LED light-emitting part for waterproofing An LED block unit is constituted by a coating part,

A plurality of LED block units are arranged and fixed on the power cable of the same line at intervals and a constant voltage IC device for maintaining a constant voltage on the circuit board is provided.

However, the above-mentioned two prior arts disclose a structure in which LEDs are interconnected, and the connection direction is limited between the LEDs by providing connecting means on both sides of the LEDs or by using a cable, There is no problem.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems,

And a light source assembly coupled to the interior of the housing such that the housing can be easily coupled and separated from each other through a coupling assembly coupled to the housing,

The housing has one or more light input holes and integrally includes protection means including all of the light input holes to prevent foreign matter or water from entering through the light input hole,

For the fastening of the free housing tube through the coupling assembly, the coupling assembly comprises an arm connector or a male connector or both,

The present invention aims at providing an interchangeable LED illumination device having a mounting hole in the housing for enabling three-dimensional installation as well as mounting on a plane, wherein the coupling assembly is detachable from the mounting hole .

According to an aspect of the present invention, there is provided an LED lighting apparatus comprising:

A housing including an upper body and a lower body coupled with the upper body;

And a light source assembly including a support coupled between the upper body and the lower body, and a cable connected to the light emitting means, the light source being coupled to the support and comprising one or more LEDs,

And a coupling assembly coupled to the housing, the coupling assembly coupling the plurality of housings to each other.

As described above, the LED lighting apparatus according to the present invention can be coupled to each other through the coupling assembly that is coupled to the housing, and the components can be easily separated from each other. ,

The housing is provided with one or more light input holes to penetrate the light source output from the light source assembly inside the housing to the outside, and a foreign material or water is used by using a protective member including all of the one or more light input holes. It can be prevented that it is injected into the housing,

The coupling assembly comprises a female connector and / or a male connector, and is usable according to the direction of coupling between the housings,

The coupling assemblies may be installed on the mounting holes provided in the housing to facilitate attachment and detachment, or the housings may be provided in a flat or curved shape depending on the work to be displayed or the work to be expressed.

1 and 2 show an exploded perspective view
Fig. 3 is a photograph of a disassembled LED lighting device according to the present invention,
Figure 4 is a perspective view of a mating assembly according to the present invention;
Fig. 5 is a view showing an embodiment of an LED lighting device capable of mutual fastening according to the present invention
6 is a schematic configuration diagram of a high efficiency LED dimming converter according to the present invention.
7 to 9 are specific circuit diagrams of a high efficiency LED dimming converter according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

In addition, the reference numerals of FIGS. 1 to 5 and the reference numerals of FIGS. 6 to 9 denote other objects even if they are overlapped with each other.

1 to 5, an LED lighting apparatus L according to the present invention includes an upper body 11 and a lower body 13 coupled to the upper body 11, A supporting body 21 coupled between the upper body 11 and the lower body 13 and light emitting means 23 coupled to the supporting body 21 and composed of one or more LEDs 231, And a light source assembly (20) comprising a cable (25) connected to the light emitting means (23).

More specifically, the LED lighting apparatus L capable of mutually interlocking according to the present invention is for realizing a media facade. In general, in order to install a media facade that is mounted on an outer wall of a building or the like, LED lighting apparatuses are used, and these lighting apparatuses are developed for combining various advertising and art works with light by combining them,

1 to 3, the housing 10 includes an upper main body 11 and a lower main body 13 which are formed in a diamond shape. A support body 21 to which the light emitting means 23 composed of the LED 23 is coupled is coupled between the upper body 11 and the lower body 13. The upper body 11 is provided with one or more light input holes 111 corresponding to the LEDs 231. Light emitted from the LEDs 231 through the light input holes 111 passes through the light input holes 111, And is emitted outside the housing 10. A diffusion groove 113 is formed in the outer surface of the upper body 11 around the light input hole 111. The diffusion hole 113 is inclined toward the light input hole 111, So that light emitted through the injection hole 111 can be uniformly emitted to the outside due to the diffusion grooves 113.

In addition, a seating part 114 is provided on the inner surface of the housing 10, and the seating part 114 includes all of the light input holes 111, and the seating part 114 is provided with the light input And a protection means 115 including all of the holes 111 are provided.

The protection means 115 may be made of transparent acrylic material, but the protection means 115 may be formed of a transparent material such as transparent plastic or transparent glass as well as an acrylic material.

The housing 10 is mainly installed on an outer wall of a building or a general wall, and foreign matter such as dust and moisture in the air enters into the housing 10, so that various safety accidents such as breakdown and short-circuit can occur. Therefore, the protection means 115 can prevent foreign substances such as dust and moisture from being injected into the housing 10 from the outside of the housing 10 through the light input hole 111, The color of the illumination may be changed by using a different color material having transparency instead of a transparent material.

Further, the protection means 115 is provided integrally including all of the light input holes 111, so that it is possible to prevent the foreign matter from being injected into the light input holes 111 And it is easy to manufacture and to assemble.

1 to 3, a light source assembly 20 is provided between the upper body 11 and the lower body 13. The light source assembly 20 includes the support body 21 and the support body 21, Emitting unit 23 having one or more LEDs 231 and a cable 25 connected to the light emitting unit 23. The light emitting unit 23 is connected to the light emitting unit 23,

More specifically, the support body 21 of the light source assembly 20 is provided between the upper body 11 and the lower body 13 in the same shape as the upper body 11 and the lower body 13, The light emitting means 23 is bolted to one side of the support body 21. The supporting body 21 is provided with a coupling hole 215 and the fixing body 217 is coupled to the coupling hole 215 and the fixing body 217 is provided with a plurality of through holes 217a . The coupling hole 215 is a passage through which the cable 25 penetrating from the lower part to the upper part of the supporter 21 and connected to the light emitting unit 23 moves and which is generated by shaking or kinking of the cable 25. [ A fixing body 217 was provided to solve the problem of short-circuiting, or disconnection. The fixing member 217 is provided with a plurality of through holes 217a having a diameter equal to or greater than the diameter of the cable 25 so that each line of the cable 25 is connected to the through hole 217a in a one- It is possible to prevent each cable 25 from being broken due to twisting or impact.

The light emitting means 23 provided in the support 21 is provided with a plurality of LEDs 231. The LED 231 includes a light input hole 111 provided in the upper main body 11, Respectively. Since the LED 231 has a high power efficiency and a light weight, it can reduce the thickness and size of the lighting apparatus according to the present invention and is long in life and easy to express various colors. Therefore, unlike other lighting products, LED 231 is preferably used.

Although the light emitting means 23 is provided on one side of the support 21 in the figure, when the light emitting means 23 is provided on one side of the support 21, The light emitting means 23 is provided on both sides of the support body 21 and the lower body 13 is also provided with the light input hole 111 and the protection means 111 provided in the upper body 11, It is also possible to provide the light emitting device 115 so as to emit light to both sides of the housing 10.

As shown in FIGS. 4 to 5, the LED 231 capable of mutually coupling according to the present invention is coupled to the housing 10, and the plurality of housings 10 can be coupled with each other (Not shown).

The coupling assembly 30 is connected to the light emitting means 23 on one side of the supporting body 21 through a through hole 217a of a fixing body 217 provided in a coupling hole 215 of the supporting body 21. [ And a connector 33 for connecting the coupling assemblies 30 to each other.

The connector portion 33 is provided with the female connector 331 or the male connector 333 or both of them,

4, the connector 33 includes an arm connector 331 and a male connector 333. The female connector 331 is provided with an insertion portion, and the male connector 333 are provided with protrusions 331a so that the protrusions 331a are engaged with the inserting portions. A protrusion 331a is provided on one side or both sides of the female connector 331 in order to increase the rigidity of the coupling and a connection hole 331b is formed in the protrusion 331a, And a connection protrusion 333a is provided at one side of the connection hole 331b. When the female connector 331 and the male connector 333 are connected to each other, the connecting protrusion 333a is engaged with the connecting hole 331b of the protrusion 331a, 333 can be made more rigid.

A mounting hole 131 is formed in the housing 10 and a corresponding mounting hole 211 corresponding to the mounting hole 131 is formed in the supporting body 21, At this time, the coupling assembly 30 is detachably mounted on the mounting hole 131. [0035] As shown in FIG.

More specifically, a mounting hole 131 to which the coupling assembly 30 can be mounted is provided on a part or all of the respective surfaces of the lower main body 13 in the lower main body 13 of the housing 10. And the female connector 331 of the coupling assembly 30 is partially directed to the outside of the mounting hole 131 so that the male connector 333 is directed to the outside of the mounting hole 131 . In the related art, the female coupling portion and the male coupling portion are provided in a predetermined direction so that they must be combined with one direction in coupling each lighting device, or the lighting device having the lighting device having the female coupling portion and the male coupling portion However,

The LED lighting apparatus L capable of mutual coupling according to the present invention includes both the female connector 331 and the male connector 333 so that the male and female connectors can be rotated by necessity, Shaped media facade can be constructed.

5, the mounting hole 131 and the corresponding mounting hole 211 are provided with a first latching part 133 and a second latching part 213, respectively, as shown in the cross- And it is preferable that one side of the coupling assembly 30 is formed by a means for preventing the coupling assembly from being inserted into the housing 10 when the coupling assembly is coupled to the mounting hole 131 and the corresponding mounting hole 211, It is preferable to eliminate the inconvenience of engagement caused by the insertion of the coupling assembly into the housing 10 by engaging the first and second hook portions.

Further, the coupling assembly 30 is configured to be easily detached from the mounting hole 131 and the corresponding mounting hole 211. The distance to be detached is coupled to the receiving portion 31 of the coupling assembly 30 And the cable 25 connected to the light emitting means 23.

In this case, the coupling assembly 30 is coupled to the mounting hole 131 and the corresponding mounting hole 211 to maintain the flat surface. And,

On the other hand, if the wall has a curvature or intentionally curvature is to be formed for a three-dimensional artwork or an illumination lamp, the coupling assembly 30 is detached from the mounting hole 131 and the corresponding mounting hole 211, It is possible to express various flat and stereoscopic advertisements or works of art.

In addition, the LED converter for supplying the rated power for lighting the mutually fastenable LED lighting apparatus according to the present invention will be described.

6 to 9, the present invention includes an EMI filter 10, a rectifying unit 20, a power factor improving PWM unit 30, a transformer T1, a DC unit 40, a feedback unit 50, A supply unit 60, a dimming control unit 70, a dimming interface unit 80, and the like.

Referring to FIG. 7, a fuse F1 for protecting the converter when the overcurrent is inputted to the commercial power supply is connected to the input side of the commercial power supply, and a fuse F1 for clamping the instantaneous overvoltage And a varistor (MOV1) for protecting the converter is connected.

The EMI filter 10 is connected to the output side of the fuse F1 and the varistor MOV1 to remove a conductive noise included in a commercial power source.

The EMI filter 10 includes two line filters LF1 and LF2 on both sides and capacitors C3 and C10 provided on output sides of the two line filters LF1 and LF2 and two line filters LF1 and LF2, And the intermediate point between the two capacitors C1 and C2 connected in series is grounded to flow the conductive noise included in the commercial power supply to the ground.

The rectifier 20 performs full-wave rectification of the commercial power output from the EMI filter 10 and converts it into a pulsed power supply.

The rectifying unit 20 includes bridge diodes D1 to D4.

The transformer (T1) transforms the pulsating current output from the rectifying unit (20) and outputs a rated power having improved power factor.

The power factor improving PWM unit 30 improves the power factor and controls the switching of the transformer T1 so as to output the rated power.

The power factor improving section PWM section 30

A switching device (Q1) for turning on and off the transformer (T1)

A control unit U1 for controlling the switching of the switching device Q1,

Start resistors R2 and R24 and a capacitor C9 for providing a start voltage for initial operation of the control unit U1,

R2, R3, and C6 that sense the voltage waveform of the output pulsating current of the rectifying unit 20 and provide the detected voltage waveform to the control unit U1,

The primary driving power supply unit 90 includes an auxiliary coil t1 magnetically coupled to the secondary side of the transformer T1, a diode D12 rectifying a voltage induced in the auxiliary coil t1, Resistors R28 and R21, capacitors C12 and C14, a transistor Q3 and a zener diode ZD1 for constant-voltage operation.

The primary driving power supply unit 90 maintains a stable driving voltage even at dimming of 5% or less, so that the power factor improving PWM unit 30 can be stably operated even at low illuminance.

A current sensing unit R13 for sensing a current induced by the switching of the transformer T1 from the auxiliary coil t1 and sensing a zero point where the current intensity is zero and providing the zero point to the control unit U1;

Snares (D9, R12, C11) for limiting and protecting the intensity of counter electromotive force induced on the primary side of the transformer (T1)

(R5, 7, 8, 9, 10, 11, 14, C8, etc.) connected to drive the control unit (U1).

The control unit U1 controls the switching of the switching device Q1 so that the waveform of the current induced in the transformer T1 matches the waveform of the voltage output from the rectifier 20, And the current is in phase to improve the power factor.

More specifically, the control unit U1 controls the voltage of the output pulsating current source of the rectifier unit 20 sensed by the voltage sensing units R1, R23, R3, and C6, The switching element Q1 is switched on and off at a low frequency and the switching element Q1 is switched on and off at a relatively high frequency at the point of time when the voltage is weak, The voltage waveform and the period are the same and the shapes are matched to improve the power factor.

Referring again to FIG. 4,

When the waveform of the one period voltage PV output from the rectifying unit 20 and detected by the voltage sensing units R1, R23, R3, and C6 is the same as shown in the drawing,

At the time when the voltage waveform PV starts, the control unit U1 shortly turns off the switching element Q1 after turning on the switching element Q1,

When the control unit U1 is turned on at a time point at which the intensity of the current induced by the transformer T1 is lowered as the current sensed by the current sensing unit R13 decreases and becomes zero as the switching element Q1 is turned off, Turns on the switching element Q1 and then turns off. At this time, since the voltage intensity of the voltage waveform is increased earlier than that before, the turn-off period is slightly longer, that is, Lt; / RTI >

Thus, the turn-on / turn-off period (i.e., the period) is turned on at each time point when the zero point is sensed by the current sensing unit R13 and is proportional to the voltage intensity at that time, When the turn-off period is long (i.e., switched to low frequency) and the turn-off period is gradually shortened (i.e., switched to high frequency) while going to both sides, the current Pi ), The waveform of the triangular waveform is the same as that of the triangular waveform, and the total current (PI) waveform of the average value connecting the current Pi waveforms has the same period and the same waveform as the voltage PV waveform, And the current (PI) are in phase and the power factor is improved.

The direct current unit 40 directs the output power induced on the secondary side of the transformer T1 to direct current to the LED 231 as a load.

The direct current unit 40 includes diodes D7 and D8 for rectifying the output power of the transformer T1 and capacitors C5 and C23 for smoothing and directing the output power of the transformer T1 and transformers T1 and T2 at the time of turn- And a resistor R20 and a capacitor C18 as a snubber that protects and protects the overvoltage from being induced.

And a line filter (LF3) for removing noise from a rated power supplied as an LED load is provided on the output side of the direct current part (40).

A regulator (not shown) for supplying power to a receiving module (for example, RS485, DALI, Zigbee, PIR sensor, RF / IR interface or the like) for receiving a dimming command signal from the outside by wire or wireless is provided on the output side of the DC unit 40 And a zener diode ZD3 for protecting the regulator U2 from an overvoltage and a connector CN4 for connecting the receiving module to the regulator U2 are connected.

A resistor R18, a resistor R104, and a resistor R105 are provided as a voltage sensing unit for sensing a voltage supplied from a load LED, and a current sensing unit for sensing a current supplied to the LED is connected to the output of the direct current unit 40, R31 and a dimming power supply unit 90 for providing a reference voltage for dimming.

The resistor R18 as the voltage sensing unit provides the voltage sensed through the first terminal to the dimming control unit 70. The resistor R31 as the current sensing unit supplies the sensed current to the dimming And supplies the reference voltage for dimming to the dimming control unit 70 and the dimming interface unit 80 through the fifth terminal and the fifth terminal, respectively.

The dimming power supply unit 90 provides a reference voltage (10 volts) for dimming, i.e., a maximum voltage in the range of the dimming command signal that changes the illuminance of the LED. For example, when the dimming command signal has a range of 0 to 10 volts, the maximum voltage of 10 volts becomes a reference voltage for dimming and is provided to the dimming control unit 70 and the dimming interface unit 80. This reference voltage ensures that the dimming command signal received and received by the dimming interface unit 80 and the dimming control unit 70 does not exceed 10 volts even if the dimming command signal is input with a magnitude larger than the reference voltage.

The dimming power supply unit 90 includes resistors R41, R42 and R26, a capacitor C26 and a variable regulator U3. The output voltage of the direct current unit 40 is connected to the resistors R41 and R42 The ratio produces a 10 volt reference voltage.

The dimming interface unit 80 provides the dimming command signal to the dimming control unit 70 while preventing the externally inputted dimming command signal from affecting the dimming control unit 70. When the input dimming command signal is below the minimum reference value And supplies the light-off signal to the dimming control unit 70 so as to be turned off.

Referring to FIG. 8, the dimming interface unit 80 receives a dimming command signal through terminals 8 and 2 ', receives a reference voltage for dimming through terminal 5', receives a reference voltage from terminal 6 ' The driving power is inputted through the power supply.

The dimming command signal inputted through the terminals 8 and 2 'is input to the non-inverting terminal of the buffer U201-A through the resistor R207, the capacitor C201 and the diode D202,

The dimming command signal buffered in the buffer U201-A is output through the 4 'terminal, and the output dimming command signal is transmitted to the dimming controller 70 through the terminal No. 4,

In addition, the dimming command signal buffered in the buffer U201-A is input to the non-inverting terminal of the comparator U201-B via the resistor R202,

The comparator U201-B receives the reference voltage input through the resistor R204 and the resistor R205 via the resistor R204 and receives the voltage from the inverting terminal, Compares the input buffered dimming command signal and outputs an unlit signal via the terminal 7 'when the dimming command signal is smaller than the voltage-divided reference voltage, and delivers the unlit signal to the dimming controller 70. For example, when the reference voltage input through terminal 5 'is 10V and the voltage divided reference voltage to the comparator is 1V, when the buffered dimming command signal is above 1V, the comparator outputs high (15V) The control unit 70 controls the voltage supplied to the LED, which is a load of the direct current unit 40, to be higher, thereby lighting the LED. The comparator outputs a low voltage (0 V) to control the voltage supplied from the dimming control unit 70 to the LED, which is the load of the direct current unit 40, to be lowered to turn off the LED.

The dimming control unit 70 outputs a voltage sensed by the voltage sensing unit R18 and a current sensed by the current sensing unit R31 to a dimming control unit 80 including a dimming command signal The dimming control signal is generated so that the dimming of the LED is controlled to be turned on at a constant illuminance and is transmitted to the power factor improving PWM unit 30 through the feedback unit 50 (P1).

9, the dimming control unit 70 receives the output voltage of the direct current unit 40, which is sensed by the resistor R18 of the voltage sensing unit through the first terminal, receives the output voltage of the direct current unit 40 through the terminal # 7, And receives the current detected by the resistor R31 of the current sensing unit through the terminal No. 4 and outputs the dimming signal to the 4th terminal of the dimming interface unit 80. [ ', Receives the reference voltage for dimming through the terminal 5, receives the driving power required for driving through the terminal 6, and receives the driving power required for the dimming control through the terminal 3 And outputs the dimming control signal to the photocoupler P1 of the feedback unit 50. [

The output voltage of the direct current unit 40 input to the first terminal is input to the IC U101 through the resistor R104. At this time, the low signal (0V; , The transistor Q101 maintains the turn-off state so that the output voltage of the direct current unit 40 is directly input to the IC U101 through the resistor R104 (12V) (when a dimming command signal of 1V or more is inputted in the dimming command signal having a range of 0 to 10V) is inputted to the terminal No. 7, the transistor Q101 is turned on and the output voltage of the direct current section 40 Is inputted to the IC U101 through the combined resistance of the two resistors R104 and R105 so that the output voltage of the dc portion 40 of the IC U101 becomes high The voltage supplied to the LED, which is the load of the DC unit 40, is controlled to be higher, .

The output current of the DC unit 40 sensed by the resistor R31 of the current sensing unit and the output current of the dimming interface unit 0 of the dimming interface unit 0 are input to the fourth terminal of the IC U101, The output current of the direct current unit 40 is attenuated to a large extent through the resistor R31 of the current sensing unit and the current according to the dimming command signal is connected to the resistor connected to the terminal 4 ' R201). ≪ / RTI > For example, if the output current of the dc portion 40 attenuated to a large extent through the resistor R31 of the current sensing portion has a magnitude of 1, then the resistor R201 connected to the terminal 4 ' The current due to the dimming command signal becomes a magnitude of 10 and the IC U101 has a relatively small influence on the output current of the dc portion 40 so that the current due to the relatively large dimming command signal Thereby generating a dimming control signal. Therefore, the dimming control signal generated by the IC (U101) may be slightly unstable at the initial stage of the input of the dimming command signal, but is stabilized immediately so that a stable constant current is supplied to the LED. When the dimming command signal is inputted in the range of 0 to 10 V but the dimming command signal is changed in units of 1 V when the brightness of the LED is adjusted step by step, The output current of the direct current section 40 is reduced to be equal to or less than 1 V (the current can be converted into the voltage through the resistor), the output current of the direct current section 40 So that it is possible to eliminate instability at the initial stage of the input of the dimming command.

The dimming control unit 70 transmits a dimming control signal to stop the operation of the power factor improving PWM unit 30 when the signal inputted through the voltage sensing unit and the current sensing unit is a signal corresponding to a short or no load, .

The feedback unit 50 includes a dimming control unit 70 that is generated by comparing a voltage and current supplied from the DC unit 40, that is, a load of the LED 231, and a dimming command signal input through the dimming interface unit, To the control unit U1 of the power factor improving PWM unit 30 so that the control unit U1 can supply a stable and stable rated power (constant voltage or / and constant current) to the LED load, Thereby controlling the switching of the transistor Q1.

It may be preferable that the feedback unit 50 uses a photocoupler P1 in which the input and output (that is, the input side light emitting element and the output side light receiving element) are electrically insulated and the transmission of the signal is stable.

The photocoupler P1 of the feedback unit is supplied with the driving power from the secondary driving power supply unit 60 and the driving of the photocoupler P1 is controlled by the dimming control signal of the dimming control unit 70.

The secondary driving power supply unit 60 includes a photocoupler P1 of the feedback unit 50, an IC U101 of the dimming control unit 70, a buffer U201-A of the dimming interface unit 80, And supplies driving power to the comparator U201-B.

The secondary driving power supply unit 60 includes an auxiliary winding t2 magnetically coupled to a secondary side of the transformer T2, a diode D11 rectifying a voltage induced in the auxiliary winding t2, R4, and R15, capacitors C13 and C16, a transistor Q2, and a zener diode ZD2, which constant-voltage-change the output voltage of the capacitor C2.

The constant voltage driving power supply to the secondary driving power supply unit 60 is supplied to the photocoupler P1 through the resistor R32 and is supplied to the photocoupler P1 through the resistor R32 and through the terminals 6 and 6 ' Is supplied to the buffer U201-A of the IC U101 and the dimming interface unit 80 and the comparator U201-B.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Such modifications, alterations, and substitutions are to be construed as being within the scope of the present invention.

L: Lighting device 10: Housing 11: Upper body
111: light input hole 113: diffusion groove 114:
115: protection means 13: lower body 131: mounting hole
133: first latching part 20: light source assembly 21: support
211: Corresponding mounting hole 213: Second engaging portion
215: fastening hole 217: fixing body 217a: through hole
23: light emitting means 231: LED 25: cable
30: coupling assembly 31: receiving portion
33: connector portion 331: female connector 331a:
331b: connection hole 333: male connector 333a: connection projection

Claims (4)

A housing (10) comprising an upper body (11) and a lower body (13) coupled with the upper body (11);
A supporting body 21 coupled between the upper body 11 and the lower body 13 and a light emitting means 23 coupled to the supporting body 21 and composed of one or more LEDs, And a cable 25 connected to the light source assembly 20,

And a coupling assembly (30) coupled to the housing (10) to allow the housings (10) to be coupled to each other,
The supporting body 21 is provided with a fastening hole 215, the fastening hole 215 is further provided with a fixing body 217,
The fixing member 217 is provided with a plurality of through holes 217a for preventing the cable 25 from being twisted,

Further comprising an LED converter for supplying a rated power to the light source assembly 20,
The LED converter
A direct current unit 40 for converting the output power of the transformer T1 into direct current and supplying the direct current to the LED, a rectifying unit 20 for rectifying the input power, a transformer T1 for transforming the pulsating current power outputted from the rectifying unit 20, A power factor improving PWM unit 30 for controlling the switching of the transformer T1 by a PWM method so as to supply a constant current to the LED and improving the power factor, a dimming control signal for controlling the illuminance of the LED to the power factor improving PWM unit And a dimming interface unit (80) for buffering an externally input dimming command signal and transmitting the buffered signal to the dimming control unit (70), wherein the dimming control unit (70)

The power factor improving PWM unit 30
A switching element (Q1) for turning on and off the transformer,
A control unit U1 for controlling the switching of the switching device Q1,
Start resistors R2 and R24 and a capacitor C9 for providing a start voltage for initial operation of the control unit U1,
R2, R3, and C6 for sensing the voltage waveform of the output pulsating current source of the rectifying unit and providing the voltage waveform to the control unit U1;
An auxiliary coil t1 wound on the primary side of the transformer to be magnetically coupled to the transformer,
R28, Q3, C14, C12, R21, ZD1, and Q3 that convert the voltage induced in the auxiliary coil t1 into a voltage and supply the voltage to the control unit U1,
A current sensing unit R13 sensing a zero point of the current induced by the switching of the transformer T1 from the auxiliary coil t1 and providing the zero point to the control unit U1,
And snubbers (D9, R12, C11) for limiting and protecting the intensity of counter electromotive force induced on the primary side of the transformer (T1) according to switching,

A resistor R18 as a voltage sensing unit for sensing a voltage supplied to the LED as a load, resistors R30 and R31 as a current sensing unit for sensing a current supplied to the LED, And a dimming power supply unit (90) for providing the dimming power to the LED lighting unit. The method according to claim 1,
The housing 10 is provided with one or more light input holes 111,
Wherein the housing (10) is provided with protection means (115) including both of the light input holes (111) inside or outside the housing (10). The method according to claim 1,
The coupling assembly (30)
A receiving portion 31 for coupling the cable 25 and a connector portion 33 for connecting the coupling assemblies 30 to each other,
The connector portion 33 is provided with a female connector 331 or a male connector 333 or both of them,
A mounting hole 131 is formed in the housing 10,
The coupling assembly 30 includes a corresponding mounting hole 211 coupled to the mounting hole 131 and detachable from the housing 10,
Wherein the mounting hole (131) and the corresponding mounting hole (211) are provided with a first latching part (133) and a second latching part (213), respectively, 4. The method according to any one of claims 1 to 3,
The dimming interface (80) of the LED converter
Receives a dimming command signal through terminals 8 and 2 ', receives a reference voltage for dimming through terminal 5', receives driving power through terminal 6 '
The dimming command signal inputted through the terminals 8 and 2 'is input to the non-inverting terminal of the buffer U201-A through the resistor R207, the capacitor C201 and the diode D202,
The dimming command signal buffered in the buffer U201-A is outputted through the terminal 4 ', and the outputted dimming command signal is transmitted to the dimming control unit through the terminal No. 4,
The dimming command signal buffered in the buffer U201-A is input to the non-inverting terminal of the comparator U201-B via the resistor R202,
The comparator U201-B receives the reference voltage input through the resistor R204 and the resistor R205 via the resistor R204 and receives the voltage from the inverting terminal, Compares the input buffered dimming command signal to output an unlit signal through the terminal 7 'when the dimming command signal is smaller than the voltage-divided reference voltage, and transmits the unlit signal to the dimming control unit,

The dimming control unit
The output voltage of the dc part sensed by the resistor R18 of the voltage sensing part is input through the resistors R104 and R105 through the first terminal and received as the dimming command signal outputted from the terminal 7 ' And receives a dimming command signal output from the terminal 4 'of the dimming interface unit, receives the dimming command signal through the terminal # 4, and receives the dimming command signal through the terminal # Receives the driving power required for driving through terminal No. 6, and outputs a dimming control signal required for dimming control through terminal # 3 to the photocoupler (P1) of the feedback section,
The output voltage of the direct current part input to the first terminal is input to the IC U101 through the resistor R104. When the low signal is input to the terminal # 7, the transistor Q101 maintains the turn-off state, The output voltage is directly input to the IC U101 through the resistor R104 and the high signal is input to the seventh terminal, the transistor Q101 is turned on so that the output voltage of the dc portion becomes the combined resistance of the two resistors R104 and R105 The IC U101 is controlled so that the voltage supplied to the LED, which is a load of the dc portion, is increased, when the output voltage of the dc portion is reduced due to the high signal of the seventh terminal, And the LED lighting device is capable of mutual fastening.

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