KR20090117341A - Led lighting system using ac power sources applied wireless interface - Google Patents

Abstract

PURPOSE: An AC power LED lighting device is provided to perform miniaturization by converting an AC power into a DC power without use of SMPS(Switching Mode Power Supply). CONSTITUTION: An AC power LED lighting device includes an LED lighting part(1) and a control part(3). The LED lighting part rectifies an AC power into a driving power of an LED device. The LED lighting part controls brightness of an LED module(20) according to a control signal of user. The LED lighting part has a wireless communication module(2) for receiving the control signal of the user. A wireless communication module, a microcomputer(5), and a dimming circuit part(10) of the LED lighting part are arranged in one case(C). The control part inputs a control signal for controlling the LED lighting part. The control part has a wireless communication module(4) corresponding to the wireless communication module of the LED lighting module.

Description

AC LIGHT LED LIGHTING APPLICATION WITH WIRELESS INTERFACE {LED LIGHTING SYSTEM USING AC POWER SOURCES APPLIED WIRELESS INTERFACE}

The present invention relates to an AC power LED lighting device to which a wireless interface is applied.

In detail, the present invention implements LED lighting to be driven by alternating current by controlling the number of LED rectification circuits and simplified rectification circuits through a dedicated circuit configuration such as SMPS, and to rectify and supply AC power to LED modules. The present invention relates to an AC power LED lighting device having a wireless interface that integrates a configuration for adjusting the brightness of an LED light and is integrated in a single case, and that allows the brightness of the LED light to be adjusted through wireless communication.

In general, indoor lighting of a building is typically implemented by installing a fluorescent lamp or a halogen lamp on a ceiling or a wall. As described above, fluorescent lamps or halogen lamps have a large power consumption as opposed to the general ones for indoor lighting, and mainly provide only monochromatic lighting.

Recently, in order to solve such high power consumption and monotony of lighting, LED lighting lamps have been manufactured and released to produce lights of various colors with lower power consumption than fluorescent lamps or halogen lamps.

The LED lighting device as described above is widely used as a main lamp of a room or an office, a stand for a table, and the like, and an example of an illumination tile using a light guide plate in a more advanced form in this embodiment.

Such a lighting device is configured by arranging a plurality of LED modules in which a plurality of LEDs are mounted in a specific arrangement, and installing the LED modules in a ceiling or a wall of a space. In particular, the LED module is accompanied by an A / D converter for changing the AC power input from the outside into a DC power by the characteristic that the LED element is driven by a DC current of a suitable voltage. At this time, the A / D converter is accompanied by a transformer circuit having a transformer coil for stepping down alternating current, and this transformer circuit is disposed in a considerable size in the LED module, there is a problem that the product to which it is applied becomes large.

In order to solve the above problems, recently, a power supply device called a switching mode power supply (SMPS) is applied to a small device employing an LED. The SMPS is to change the frequency of the AC power source to the high frequency of the DC power source to implement a miniaturized / lightweight converting circuit compared to a conventional transformer.

However, the SMPS can implement a miniaturized / lightened converting circuit compared to a conventional transformer circuit, etc., but it requires a considerable current capacity due to converting an AC power source of 220V into a DC power source of 12 to 24V. SMPS of high current capacity greatly increases the manufacturing cost of LED module, and its application is insignificant for lighting applications. In addition, since the SMPS module is manufactured in a considerably larger size than the LED module, which is generally made smaller than the SMPS module, the SMPS module is limited in miniaturization / light weight of the LED module.

At the same time, the LED lighting is divided into a module configuration in which a plurality of LED elements are arranged, a power supply configuration for converting and supplying external power to the LED module, and a switching configuration for turning on / off the LED elements into separate configurations. It is necessary to break and install a certain location, for example several walls (to set up the respective components) inside a typical house or office.

As a result, when the replacement of ordinary fluorescent lamps or halogen lights with LED lights is carried out additional construction is exposed to the problem that the construction cost increases.

The present invention has been invented to solve the above problems.

Accordingly, the present invention, the input of the power for implementing the LED lighting can be performed by converting the AC / DC by a more simplified circuit, and the configuration and the brightness of the LED lighting to rectify and supply AC power to the LED module It can be integrated into one case by integrating the configuration to control the lighting, and the brightness of the LED light can be adjusted through wireless communication, reducing the production cost by simplifying the configuration that is exclusively composed of SMPS. The purpose of the present invention is to provide an LED lighting device that can make the configuration more compact and lighter, to quickly install the LED lighting at a low construction cost, and to adjust the brightness of the lighting conveniently.

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

The present invention receives the AC power input from the outside to rectify and supply to the power for driving the LED device, and receives the operation signal input by the user to perform the lighting and turn off and brightness control of the LED module, An LED lighting unit provided with a wireless communication module for wirelessly receiving a user's operation signal; The control unit is configured to input an operation signal to manipulate the LED lighting unit and include a wireless communication module corresponding to the wireless communication module of the LED lighting unit.

Here, the LED lighting unit, a wireless communication module for receiving a user's operation signal, a microcomputer for controlling the lighting, turn off and brightness of the LED module by receiving the signal, and the brightness of the LED module by the control signal of the microcomputer The dimming circuit to adjust is installed in one case. In addition, the one case is further configured with a switching unit for allowing the user to directly input the operation signal to the microcomputer.

In particular, the LED module, the power supply unit for receiving an AC power source to drive the device from the outside; A rectifier for rectifying the input power by a bridge rectifier circuit; The LED driver receives the power rectified by the rectifying unit to drive the LED element, and the LED driver for driving the LED element by a desired voltage by connecting a plurality of LED elements and resistors corresponding to the input power in series. .

On the other hand, the control unit, and a key input unit for transmitting the operation signal to the LED lighting unit through a wireless communication unit; And a signal generation unit for generating a keyed signal as an operation signal for transmitting the signal through the wireless communication unit.

As described above, according to the present invention, the input power can be converted from AC to DC by a simplified configuration in which an appropriate number of LED elements are interlocked with the bridge rectifier circuit and exclusive SMPS is disposed, thereby reducing manufacturing costs. And since the size of the product is reduced in size, there is an effect of promoting the sales efficiency according to the reduction of the cost of the product and extending the application range of the product according to the miniaturized size.

In particular, the present invention is configured to adjust the brightness of the LED module through a wireless communication method, and to configure a dimming configuration for adjusting the power supply configuration and brightness in one case, convenience in use, general Construction and replacement of ordinary fluorescent lamps and halogen lamps with LED lighting can be performed quickly and at low cost.

An embodiment of the present invention to which the above configuration is applied will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an LED lighting apparatus according to the present invention, FIG. 2 is a circuit diagram of an LED module of the LED lighting system according to the present invention, and FIG. 4 is a circuit diagram of a dimming circuit part of the LED lighting system according to the present invention.

Referring to the drawings, the LED lighting apparatus according to the present invention comprises an LED lighting unit 1, and a control unit 3 for wirelessly controlling the LED lighting unit (1). At this time, a plurality of LED elements (L) for emitting the light of the LED illumination is arranged on a printed circuit board (PCB) is arranged, a number of electricity for driving (lighting and turning off) these LED elements (L), It is known in advance that the electronic component can be applied to a configuration mounted on a printed circuit board.

The LED lighting unit 1 is configured to receive the AC power input from the outside to rectify and supply the power to drive the LED element (L). In addition, the LED lighting unit 1 is applied to the operation signal input by the user to perform the lighting and turn off and brightness control of the LED module 20. In particular, the LED lighting unit 1 is configured with a wireless communication module 2 for wirelessly receiving a user's operation signal.

In more detail, the LED lighting unit 1 includes a wireless communication module 2, a microcomputer 5, a dimming circuit unit 10, a switching unit 6, and an LED module 20. The module 2, the microcomputer 5, the dimming circuit unit 10, and the switching unit 6 are installed in the one case C.

The wireless communication module 2 is a component for receiving a user's operation signal through the control unit (3). The wireless communication module 2 may be applied to an RF communication device, a Bluetooth module, and the like for receiving an RF signal, and RS485 is applied as a preferred configuration.

For reference, the RS485 is an extended version of RS 232 and RS 422, and is a kind of serial communication protocol standard that supports a home network. This RS 485 allows all devices to transmit and receive data on the same line, supporting both half duplex and full duplex communication. In particular, the RS 485 has a maximum number of 32 drivers and receivers, and it is possible to build a network with a maximum speed of 10 Mbps and a maximum distance of 1.2 km.

That is, by the wireless communication module it is possible to simultaneously control the control configuration installed in the one case (C) a plurality of LED module 20 and the control unit 3 to control the user.

The microcomputer 5 is a configuration for generating a control signal for adjusting the brightness of the LED light (including the on / off of the LED light) in response to the operation signal input through the wireless communication module (2). Although not shown, such a microcomputer 2 includes a configuration such as a memory for storing flashing of various lights and data for adjusting brightness in order to generate a control signal corresponding to an input operation signal.

The dimming circuit unit 10 is a configuration that generates a drive signal of the driving brightness of the LED element (L) by PWM control the AC power applied from the outside by the control signal input from the microcomputer (2). That is, the dimming circuit unit 10 is configured to control the driving brightness of the LED element L by controlling the input amount of current through PWM (pulse width modulation) control. To this end, the dimming circuit unit 10 may be implemented by connecting an infrared interface circuit to the LED module 20.

In particular, the dimming circuit unit 10 is configured to perform a process of turning on the LED element L to gradually lighten for a set time, and a process of turning off the light so as to gradually darken for a set time. The dimming circuit unit 10 may be configured by connecting a configuration such as a timer (not shown) so as to set the time of lighting and the time of darkening, respectively.

In this configuration, a process in which the illumination implemented by the LED element L is gradually brightened and gradually darkened may be selectively applied to any one process or all at the same time.

The switching unit 6 is a form of a key input operation panel for allowing a user to directly input an operation signal to the microcomputer 5, which is applied in the same configuration as that of the key input unit 7 of the controller 3 to be described later. do.

Reference numeral 9 in the figure denotes a control power supply unit in the form of a power supply for supplying power in a control configuration.

The LED module 20 is configured to perform a function of lighting set by a driving signal generated by the dimming circuit unit 10. To this end, the LED module 20 has a basic configuration consisting of a power supply unit 40, a rectifier 50, LED driver 60.

The power supply unit 40 is configured to receive an AC power source to drive the device from the outside. At this time, the external AC power source is a 220V power source used as a Korean standard in the present embodiment, and accordingly, the number of LED elements L of the LED driver 60 to be described later is specified.

In particular, the power supply unit 40 as described above includes a fuse 41 for shutting off the external power in a specific situation. Here, the specific situation refers to a situation in which excessive AC power exceeding a rating is input from the outside due to an unforeseen factor such as a short circuit.

The rectifier 50 is composed of a diode circuit for rectifying the input power. At this time, a bridge rectifier circuit 51 is applied to the diode circuit.

The LED driver 60 includes a plurality of LED elements L and a resistor 61 connected in series to correspond to the 220V power source described above. The LED driver 60 is configured to drive the LED element L to a desired voltage by receiving the power rectified by the rectifier 50.

That is, as shown in the drawing, when the external AC voltage is input at 220V and the driving voltage of the LED element L is 3.2V, 60 LED elements L are disposed so that the voltage of 192V is the LED element L. ), And the remaining 8V voltage is applied to the resistor to obtain a stable circuit.

In addition, in order to further expand the LED driver 60, a plurality of pairs are connected in parallel with a plurality of LED elements L and a resistor 61 in series.

The control unit 3 is configured in the form of a remote controller for inputting an operation signal for operating the LED lighting unit 1. Such a control unit 3 is configured with a wireless communication module 4 corresponding to the wireless communication module 2 of the LED lighting unit (1).

In particular, the control unit 3 includes the configuration of the key input unit 7 and the signal generation unit 8.

The key input unit 7 is configured in the form of a keypad to transmit the operation signal to the LED lighting unit 1 through the wireless communication unit (4). In addition, the signal generation unit 8 is a configuration of a signal processor for generating a key input signal as an operation signal for transmitting through the wireless communication unit (4).

1 is a block diagram of an LED lighting system according to the present invention.

Figure 3 is a circuit diagram of the LED module of the LED lighting system according to the present invention.

4 is a circuit diagram of a dimming circuit of the LED lighting system according to the present invention.

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

1: LED lighting part 2, 4: Wireless communication module

3: control part 5: microcomputer

10: dimming circuit unit 20: LED module

40: power supply unit 50: rectification unit

51: bridge rectification circuit 60: LED driver

Claims (5)

Receives AC power input from the outside and rectifies and supplies the power to drive the LED element (L), and receives the operation signal input by the user to control the lighting and turn off and brightness of the LED module 20 LED lighting unit (1) is provided with a wireless communication module (2) for wirelessly receiving the user's operation signal; Inputting an operation signal to operate the LED lighting unit 1, and comprising a control unit (3) equipped with a wireless communication module (4) corresponding to the wireless communication module (2) of the LED lighting unit (1) AC power LED lighting device with a wireless interface. The method of claim 1, wherein the LED lighting unit (1) The wireless communication module 2 receiving the user's operation signal, the microcomputer 5 for controlling the lighting, turning off and brightness of the LED module 20 by receiving the signal, and the control signal of the microcomputer 5 AC power LED lighting device to which the wireless interface is applied, characterized in that the dimming circuit unit 10 for adjusting the brightness of the LED module 20 is installed in the one case (C). The method of claim 2, wherein the one case (C) AC power LED lighting device with a wireless interface, characterized in that the switching unit (6) is further provided for allowing the user to directly input the operation signal to the microcomputer (5). The method of claim 1, wherein the LED module 20 A power supply unit 40 for receiving an AC power source to drive the device from the outside; A rectifier 50 for rectifying the input power by a bridge rectifier circuit 51; The rectified unit 50 receives the rectified power to drive the LED element (L), a plurality of LED elements (L) corresponding to the input power and the resistor 61 is connected in series to the LED element by the desired voltage LED driver 60 for driving (L); AC power LED lighting system having a brightness adjustment function comprising a. 5. The control part 3 according to claim 1, wherein the control part A key input unit 7 for transmitting an operation signal to the LED lighting unit 1 through the wireless communication unit 4; And a signal generator (8) for generating a keyed signal as an operation signal for transmitting the signal through the wireless communication unit (4).

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