KR200442472Y1 - LED module for advertised sign board - Google Patents

Abstract

The present invention relates to a light emitting diode module for sign advertising, comprising a substrate, a light emitting unit including a plurality of light emitting diodes mounted on the substrate, and a light emitting unit mounted on the substrate to receive and convert AC power to convert the light emission. Provided is a light emitting diode module for sign advertising comprising a converter for applying a DC power to the unit and a power input terminal for applying the AC power to the converter through the substrate. As described above, the present invention has a built-in circuit for converting alternating current into a direct current LED module for sign advertising, so that the LED module for sign advertising can be directly connected to an AC power supply without using a separate converter or converter.

Light Emitting Module, Light Emitting Diode, Substrate, Converter, Rectification, DC, AC

Description

Light emitting diode module for sign advertising {LED module for advertised sign board}

The present invention relates to a light emitting diode module for sign advertising, and to a light emitting diode module for sign advertising with a circuit for converting an AC voltage into a DC voltage.

In general, the sign advertising module is installed on the outer wall of the building or on the road to notify the place of business. The sign advertising module does not need a light emitting device during the day, but includes a light emitting device therein for securing a view at night.

As described above, a sign advertising light emitting module emitting light at night includes a light emitting device therein, and in this case, a neon light or a fluorescent light is used as the light emitting device.

1 is a view for explaining a light emitting module for sign advertising using a conventional fluorescent lamp.

Referring to FIG. 1, the conventional sign advertising light emitting module 1 includes a plurality of fluorescent lamps 2 and has a billboard on the upper side of the fluorescent lamp to secure visibility at night. In the conventional sign advertising light emitting module 1, as the size of the billboard increases, the number of fluorescent lamps 2 entering therein increases.

Thus, the use of a plurality of fluorescent lamps (2) increases the power consumption, the fluorescent lamp (2) is easily damaged by the heat of the adjacent fluorescent lamp (2), the hassle of having to frequently replace the consumed fluorescent lamp (2) additional cost This has the disadvantage of occurring.

In addition, the fluorescent lamp 2 contains a fluorescent material and a heavy metal such as mercury therein. This may contaminate the environment when disposing of the end-of-life fluorescent lamp 2, there is a problem that additional disposal costs are added.

Due to this, recently, development of a light emitting diode module for sign advertising using a light emitting diode instead of a fluorescent lamp is actively underway. In this case, the light emitting diode has a disadvantage in that a current flow direction is determined in one direction. Therefore, in order to drive the light emitting diode, a current in one direction must be applied constantly. However, in the case of AC power that is generally used today, the current flow is changed at regular intervals. Therefore, when an alternating voltage is applied to the light emitting diode, a problem occurs in that the light emitting diode blinks at a predetermined cycle.

In order to overcome this problem, the present invention incorporates a circuit for converting alternating current into direct current in a light emitting diode module, thereby improving the operation efficiency of the light emitting diode, preventing environmental pollution, using it semi-permanently, and reducing power waste. The purpose of the present invention is to provide a light emitting diode module for sign advertising.

In the present invention, although the adapters used in the conventional modules are necessarily used as 220V, the present invention has an object to provide a light emitting diode module for sign advertising that can be directly plugged into 220V without using an adapter.

In order to achieve the above technical problem, the present invention provides a substrate, a light emitting portion including a plurality of light emitting diodes mounted on the substrate, and a light emitting unit mounted on the substrate to receive AC power. A converter for applying direct current power to the light emitting unit by converting the same and a power input terminal for applying the AC power to the converter through the substrate provides a sign advertising LED module.

The converter may include an input circuit unit receiving the AC power and a bridge circuit unit rectifying the AC power input having four terminals.

The plurality of light emitting diodes may be mounted on an upper side of the substrate, and the input circuit unit and the bridge circuit unit may be mounted on a lower side of the substrate, and the bridge circuit unit may be manufactured in a chip form consisting of a bridge diode.

The input circuit portion includes second and third resistors connected in parallel between an internal terminal of one of the power input terminals and the first node, a third capacitor connected to one terminal of the first node, and a third capacitor. And a second capacitor and a first resistor connected in parallel between the other terminal and the first node, and first and fourth capacitors connected in parallel between the first node and the fourth terminal of the bridge circuit portion. It is done.

A plurality of power wires and a plurality of internal wires formed on a lower side of the substrate, wherein the first internal wires are located in a central region of the substrate and are connected to other terminals of the second and third resistors, respectively; A second internal wiring connected to one terminal of the second capacitor, the first resistor, the third capacitor, and the fourth capacitor, the second internal wiring being located in a space between the first internal wiring and the plurality of power wirings; Connected to one terminal of the fourth capacitor, the third capacitor, the second capacitor, and the other terminal of each of the first resistor, the fourth terminal of the bridge circuit portion, and the third internal The wiring is connected to the other terminal of the first capacitor.

The plurality of light emitting diodes are connected in series between the first and second terminals of the bridge circuit part through a plurality of connection wires formed on the upper side of the substrate, and the internal connection wires formed on the upper side of the substrate are connected through a connection groove. And electrically connect between the other terminal of the first capacitor and the third internal wiring.

Two power input terminals are provided on the upper side of the substrate, and a first power wire connected to the first internal terminal of each of the two power input terminals is formed on the lower side of the substrate through the connection grooves. A second power wire connected to a second internal terminal of each of the two power input terminals is formed, and an upper side of the substrate is connected between a third terminal of the bridge circuit portion and a second power wire provided on the lower side of the substrate; The power connection wiring is formed, and the first power wiring is connected to one terminal of each of the second and third resistors.

It characterized in that it comprises a power cord connected to the power input terminal 400 in order to be able to plug the module directly into an AC voltage of 220V.

As described above, the present invention has a built-in circuit for converting alternating current into a direct current LED module for sign advertising, so that the LED module for sign advertising can be directly connected to an AC power supply without using a separate converter or converter.

In other words, the present invention can be plugged into 220V used directly for home use without a separate adapter.

In addition, the present invention can improve the luminous efficiency of the light emitting diode by providing a direct current power to the light emitting diode by a built-in converter.

In addition, the present invention can prevent environmental pollution and reduce the risk of fire and electric shock by using the light emitting diode as a light emitting source.

In addition, the present invention can be applied to the light emitting diode module to the signboard or the interior interior lighting.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, that is, a view showing a preferred embodiment of a light emitting diode module for sign advertising.

2 is a plan view of the LED module for sign advertising according to an embodiment of the present invention, Figure 3 is a rear view of the LED module for sign advertising according to an embodiment of the present invention, Figure 4 according to an embodiment of the present invention FIG. 5 is a diagram illustrating circuit wiring of a substrate upper region of a sign advertising LED module, and FIG. 5 is a diagram illustrating circuit wiring of a substrate lower region of a sign advertising LED module according to an embodiment of the present invention. Is a circuit diagram of a light emitting diode module for sign advertising according to an embodiment of the present invention.

2 to 6, the LED advertising sign module according to the present embodiment includes a light emitting unit 200 that emits light having a substrate 100 and a plurality of light emitting diodes 210 mounted on the substrate 100. And a converter 300 mounted on the substrate 100 to receive alternating current power and converting the alternating current to the light emitting unit 200, and converting the alternating current into the converter 300 through the substrate 100. And a power input terminal 400 for applying power.

A PCB substrate is used as the substrate 100. In this case, a plurality of light emitting diodes 210 are mounted on an upper surface of the PCB substrate. As a result, light is emitted upward of the substrate 100.

A plurality of metal wires are formed on upper and lower surfaces of the substrate 100, and a plurality of conductive through grooves are formed to be connected to the metal wires and penetrate the substrate 100. Hereinafter, a connection relationship between the metal line and the light emitting unit 200, the converter 300, and the power input terminal 400 will be described in detail.

The light emitting unit 200 includes a plurality of light emitting diodes 210. In the present embodiment, as shown in FIG. 2, eight light emitting diodes 210 are uniformly distributed over the entire surface of the substrate 100. At this time, the number of the light emitting diodes 210 is not limited to this, and may be more or less than this depending on the brightness. The plurality of light emitting diodes 210 in the light emitting unit 200 are connected in series as shown in FIG. 6. Of course, the present invention is not limited thereto, and the plurality of light emitting diodes 210 may be connected in parallel, or may be connected in anti-parallel. At this time, both terminals and the negative terminal of the LED 210 connected in series are connected to the converter 300. Through this, the light emitting diode 210 emits light by the DC power provided from the converter 300. As described above, the LED 210 emits light by the DC power, thereby preventing flicker that occurred when the AC power is applied. In addition, the light emitting diode 210 continuously emits light, thereby increasing light emission efficiency.

The converter 300 includes an input circuit unit 310 receiving AC power and a bridge circuit 320 rectifying the input AC power. Here, the input circuit unit 310 includes a plurality of resistors R1, R2, R3 and capacitors C1, C2, C3, C4. The bridge circuit 320 is manufactured in the form of a chip composed of a bridge diode. The circuit elements constituting the converter 300 are mounted on the bottom side (ie, bottom) of the substrate 100. This will be described later.

The power input terminal 400 is located on the upper side of the substrate 100 as shown in FIG. 2 to provide power to the converter 300 disposed on the lower side of the substrate 100. To this end, as described above, the power input terminal 400 is inserted into the through hole penetrating the substrate and is connected to a wire extending to the lower side of the substrate 100.

Since the device of the present invention includes the converter 300, it can be directly plugged into 220V without an additional adapter. Therefore, it is preferable that the power input terminal 400 is connected to a power cord whose end is plugged into a household 220V. That is, the apparatus further includes a connection wire connected to the power input terminal 400 and a power cord for 220V provided at an end of the connection wire. In this way, the module of the present embodiment can be directly plugged into 220V.

Hereinafter, the electrical connection of the above-described structure will be described with reference to the drawings.

First, nine connection wires 121 to 129 for connecting the plurality of light emitting diodes 210 in series between two terminals of the bridge circuit unit 320 of the converter 300 are provided on the upper side of the substrate 100 of the present embodiment. Is formed. In addition, connection grooves connected to terminals of the light emitting diode 210 and the bridge circuit unit 320 are provided at ends of the connection wires 121 to 129.

In this case, as shown in FIG. 2, four light emitting diodes 210 are disposed at four edges of the rectangular substrate 100, and four light emitting diodes 210 are disposed at the center of the substrate 100 in a rhombic shape. do. As shown in FIG. 4, the first connection line 121 connects the first light emitting diode LED1 and the third light emitting diode LED3, and the second connection line 122 connects the third light emitting diode LED3. ) And the fifth light emitting diode LED5, the third connection wire 123 connects the fifth light emitting diode LED5 and the eighth light emitting diode LED8, and the fourth connection wire 124 connects to the eighth light emitting diode LED8. The light emitting diode LED8 is connected to the seventh light emitting diode LED7, and the fifth connection wire 125 connects the seventh light emitting diode LED7 and the sixth light emitting diode LED6, and the sixth connection wiring 126. ) Connects the sixth light emitting diode LED6 to the first terminal of the bridge circuit unit 320, and the seventh connection wire 127 connects the second terminal of the bridge circuit unit 320 to the fourth light emitting diode LED4. The eighth connection wire 128 connects the fourth light emitting diode LED4 to the second light emitting diode LED2, and the ninth connection wire 129 connects the second light emission. Connect the diode (LED2) to the first light emitting diode (LED1).

As a result, the DC power provided from the bridge circuit unit 320 is provided to the first to eighth LEDs LED1 to LED9 to emit light.

In addition, an upper side surface of the substrate 100 may include a power connection wiring 130 connecting the third terminal of the bridge circuit unit 320 to the power wirings 151 and 152 provided on the lower surface of the substrate 100 in addition to the connection wiring. And an internal connection wiring 140 connecting the first capacitor C1 mounted on the lower surface of the substrate 100 and the internal wirings mounted on the lower surface of the substrate 100.

The converter 300 is provided on the lower side of the substrate 100 as described above. 6, the input circuit unit 310 includes one AC input terminal, second and third resistors R2 and R3 connected in parallel between the first node N1, and one end of the input circuit unit 310. The third capacitor C3 connected to the one node N1, the second capacitor C2 and the first resistor R1 connected in parallel between the other terminal of the third capacitor C3 and the first node N1. ) And first and fourth capacitors C1 and C4 connected in parallel between the first node N1 and the input terminal (that is, the fourth terminal) of the bridge circuit unit 320. The bridge circuit 320 includes four terminals, and the first and second terminals are respectively connected to the positive terminal and the negative terminal of the light emitting unit 200, and the third terminal is connected to any one of the power input terminal 400. It is connected to one internal terminal, and the fourth terminal is connected to the input circuit unit 310.

The power input terminals 400 of the present embodiment each include two internal terminals. In this embodiment, two power input terminals 400 are used. The power is applied to the first power input terminal 400, and the second power input terminal 400 is used for electrical connection with another module.

For the circuit configuration as described above, a plurality of internal wirings and power wirings are provided on the lower surface of the substrate 100 of this embodiment. As shown in FIG. 5, three internal wirings 161, 162, and 163 and two power wirings 151 and 152 are provided in this embodiment. In this case, the aforementioned connection grooves are also provided in the internal wirings 161, 162 and 163 and the power wirings 151 and 152.

Here, the first power wire 151 connects between one internal terminal of each of two internal terminals of each of the two power input terminals 400. The second power wire 152 connects between other internal terminals of the two power input terminals 400. That is, for example, the first power wire 151 connects the first internal terminal of the first power input terminal and the first internal terminal of the second power input terminal, and the second power wire 152 connects the first power source. The second internal terminal of the input terminal and the second internal terminal of the second power input terminal are connected.

In this case, the first and second power wires 151 and 152 are provided in the edge region of the substrate 100. Here, the first power wire 151 extends to the center region of the substrate 100 and is connected to one terminal of each of the second and third resistors R1 and R2.

The first internal wiring 161 is positioned in the center region of the substrate 100, and is connected to other terminals of the second and third resistors R2 and R3, respectively, and the second capacitor C1 and the first resistor. It is connected to one terminal of the R1, the third capacitor C3 and the fourth capacitor C4.

The second internal wires 162 are positioned in the space between the first internal wires 161 and the first and second power wires 151 and 152, and the one terminal of the first capacitor C1 and the fourth capacitor ( C4), the third capacitor C3, the second capacitor C2, and the other terminals of the first resistor, respectively, and are connected to the fourth terminal of the bridge circuit portion 320.

The third internal wire 163 is connected to the other terminal of the first capacitor C1, and part of the third internal wire 163 is connected to the internal connection wire 140 formed on the upper surface of the substrate 100 through the connection groove. In addition, the first internal wire 161 is also connected to the internal connection wire 140 through a connection groove.

As described above, in the LED advertising light emitting module according to the present embodiment, a plurality of light emitting diodes 210 are mounted on an upper side of the substrate 100, and a converter for converting alternating current into direct current on the lower side of the substrate 100 ( The circuit elements constituting 300 are mounted. In this case, connection wirings 121 to 129 are formed in the upper surface of the substrate 100 to electrically connect the plurality of light emitting diodes 210 and electrically connect the light emitting diodes 210 to the converter 300. . In addition, an internal wiring and a power wiring are provided on the lower surface of the substrate 100 to electrically connect the circuit elements of the converter 300, and electrically connect the converter 300 and the power input terminal 400.

As such, the converter 300 may be embedded in the LED module for sign advertising to convert AC into DC and provide the LED to the LED 210. That is, for example, the converter 300 embedded in the LED module for sign advertising receives an AC voltage of 220V, rectifies it, and outputs a DC voltage of about 12V. In this case, the output DC voltage may have a different voltage value depending on a light emitting diode mounted on the upper side of the substrate 100.

In addition, in the LED advertising module for sign advertising of the present embodiment, the rectifier 300 may receive a part of the AC voltage applied to the module, and may provide the AC voltage to another module. As described above, the LED module for sign advertising of the present embodiment can be directly connected to an AC power source of 220V, which is generally used without any other adapter or rectifier.

The LED advertising module for sign advertising of the present embodiment can be applied to a character sign or advertising sign. This can be produced by adjusting the shape and size of the LED module for sign advertising. In addition, a plurality of sign LED modules may be electrically connected to produce a letter or sign for advertising.

The present invention discussed above has been described in detail only for the specific examples described. However, it is apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and variations belong to the appended utility model registration claims.

1 is a view for explaining a light emitting module for sign advertising using a conventional fluorescent lamp.

Figure 2 is a plan view of a light emitting diode module for sign advertising according to an embodiment of the present invention.

Figure 3 is a rear photo of the LED module for sign advertising according to an embodiment of the present invention.

4 is a view for explaining the circuit wiring of the upper region of the substrate of the LED module for sign advertising according to an embodiment of the present invention.

5 is a view for explaining the circuit wiring of the lower region of the substrate of the LED module for sign advertising according to an embodiment of the present invention.

6 is a circuit diagram of a light emitting diode module for sign advertising according to an embodiment of the present invention.

<Brief description of the main parts of the drawing>

100 substrate 200 light emitting unit

210: light emitting diode 300: converter

310: input circuit portion 320: bridge circuit portion

400: power input terminal

Claims (8)

Substrate 100; A light emitting unit 200 having a plurality of light emitting diodes 210 mounted on the substrate 100 to emit light; An input circuit unit 310 mounted on the substrate 100 to receive AC power and a bridge circuit unit 320 to rectify AC power input having four terminals to apply DC power to the light emitting unit 200. A converter 300 provided; And It includes a power input terminal 400 for applying the AC power to the converter 300 through the substrate 100, The input circuit unit 310, Second and third resistors R2 and R3 connected in parallel between an internal terminal of one of the power input terminals and the first node N1; A third capacitor C3 having one terminal connected to the first node N1; A second capacitor C2 and a first resistor R1 connected in parallel between the other terminal of the third capacitor C3 and the first node N1; And a first and a fourth capacitor (C1 and C4) connected in parallel between the first node (N1) and the fourth terminal of the bridge circuit unit (320). delete The method of claim 1, The plurality of light emitting diodes 210 are mounted on an upper side of the substrate 100, The input circuit unit 310 and the bridge circuit unit 320 are mounted on the lower side of the substrate 100, The bridge circuit unit 320 is a light emitting diode module for sign advertising, characterized in that produced in the form of a chip consisting of a bridge diode. delete The method of claim 1, It includes a plurality of power wiring and a plurality of internal wiring formed on the lower side of the substrate 100, The first internal wiring 161 is positioned in the center region of the substrate 100, and is connected to other terminals of the second and third resistors R2 and R3, respectively, and the second capacitor C1 and the first resistor are connected to each other. Is connected to one terminal of the first resistor R1, the third capacitor C3, and the fourth capacitor C4, The second internal wiring 162 is located in a space between the first internal wiring 161 and the plurality of power wirings, and is connected to one terminal of the first capacitor C1, and the fourth capacitor C4 and the It is connected to the other terminal of each of the 3rd capacitor C3, the said 2nd capacitor C2, and the said 1st resistor R1, and is connected to the 4th terminal of the bridge circuit part 320, The third internal wiring (163) is connected to the other terminal of the first capacitor (C1) LED advertising module for sign advertising. The method of claim 5, wherein The plurality of light emitting diodes 210 are connected in series between first and second terminals of the bridge circuit unit 320 through a plurality of connection wires 121 to 129 formed on an upper surface of the substrate 100. The internal connection wire 140 formed on the upper surface of the substrate 100 electrically connects another terminal of the first capacitor C1 to the third internal wire 163 through a connection groove. LED module for sign advertising. The method of claim 5, wherein Two power input terminals 400 are provided on an upper side of the substrate 100. A first power wire 151 connected to the first internal terminal of each of the two power input terminals 400 is formed on the lower side of the substrate 100 through the connection grooves, and the two power inputs are connected through the connection grooves. A second power wire 152 connected to the second internal terminal of each of the terminals 400 is formed, On the upper side of the substrate 100 is formed a power connection wiring connecting the third terminal of the bridge circuit unit 320 and the second power wiring 152 provided on the lower surface of the substrate, The first power wiring (151) is connected to one terminal of each of the second and third resistors (R1, R2), LED advertising module for sign advertising. The method of claim 1, And a power cord connected to the power input terminal 400 so that the module can be directly plugged into an AC voltage of 220V.

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