KR100896529B1 - An emergency electric power driver for led lamp - Google Patents

Abstract

The present invention relates to an emergency power driving device for LED lighting, AC power input unit, rectifying unit, converter unit for converting the rectified DC power into LED driving voltage, constant voltage unit for maintaining the LED driving voltage at a constant voltage, LED unit, A battery unit connected to the converter unit for charging voltage, a capacitor module connected in parallel to the battery unit, a battery charging control unit for controlling the charge value of the battery unit, connected to the AC power input unit to detect whether there is a power failure and output a power failure detection signal in case of power failure When the electrostatic discriminator, the input terminal is connected to the rectifier and the battery unit and the output terminal is connected to the input terminal of the converter unit, in normal operation, the output power of the rectifier unit is output to the converter unit, when the power failure detection signal is received from the electrostatic discriminator unit The power selector that outputs the negative output power to the converter and the lighting that controls the lighting and dimming state of the LED. And a controller.

According to the present invention, in normal operation, the entire LED unit is driven by an alternating current power supply, and in case of a power failure, only a predetermined LED is driven to display evacuation route information on the LED unit, thereby using ordinary LED lighting. There is an effect that can simultaneously perform the functions of the device and the emergency induction light.

Lighting, emergency, power failure, power, LED, battery, induction lamp, charging.

Description

Emergency power driver for LED lighting {An Emergency Electric Power Driver For LED Lamp}

The present invention relates to an emergency power driving device for LED lighting, and drives the entire LED unit by using alternating current power supply, and in case of power failure, only one preset LED is driven by battery power to display an evacuation path information on the LED unit. By using the same function as an ordinary lighting device and an emergency induction lamp, the lighting control signal carried by the AC signal can be separated and the AC signal can be used as a power for lighting control to minimize the power consumption of the battery in the event of a power failure. It relates to a device to.

Lighting is installed in many places such as subways, underground parking lots, offices, shopping centers, etc., but there are not many places where emergency generators are installed in case lighting is turned off due to fire or power failure.

As a result, in the absence of an emergency generator, many casualties are caused at the exit due to the momentary action to find a passage by panic in the dark when an emergency occurs.

In order to prevent this, the registered patent No. 5,773 of the present inventors has a display surface lamp indicating an emergency induction lamp, a first inverter unit for controlling the operation of the display surface lamp, a spot light for inducing the position of the exit in case of fire and power failure; The voltage charged in the battery when the induction device unit, which is one of the lasers, the second inverter unit for controlling the operation of the induction device unit, and the operation of the first inverter unit when the constant current power is input, and the non-current power supply is not input. Therefore, the emergency induction lamp driving circuit including a constant power monitoring circuit for controlling the operation of the first and second inverter unit has been proposed.

However, such a registered patent has a problem in that it requires a lot of installation costs because the conventional lighting means and emergency induction lamps should be provided separately.

In addition, since halogen lamps or incandescent lamps are used as lamps and induction lamps, they have short lifespans and disadvantages of environmental pollution due to mercury detection.

In addition, the battery is often damaged when a problem occurs in the light source and the battery is momentarily discharged.

In addition, the registered patent has a disadvantage in that remote lighting control is impossible at the time of power failure and additional power supply by a remote control signal is not possible at the time of power failure.

The present invention has been made to solve the above problems, the object of the present invention is to drive the entire LED unit with the AC power used in normal operation, and to drive on the LED unit by driving only the LED set by the battery power in case of power failure By expressing the route information, it is possible to simultaneously perform the functions of a conventional lighting device and an emergency induction light using a single LED light.

Another object of the present invention is to enable lighting control even during a power failure by remotely enabling the lighting and dimming control of the LED light.

Another object of the present invention is to separate the lighting control signal carried on the AC signal to use the AC signal as a power source for the lighting control to minimize the power consumption of the battery in the event of a power failure.

Still another object of the present invention is to install a capacitor (capacitor module) in parallel with the battery so as to quickly discharge the voltage across the capacitor during instantaneous voltage discharge to prevent battery damage due to battery over-discharge.

According to an aspect of the present invention for achieving the above object, an AC power input unit to which an external commercial AC power is input, a rectifying unit for rectifying the commercial AC power to a DC power, the rectified DC power to the LED driving voltage A converter unit for converting, a constant voltage unit for maintaining the LED driving voltage at a constant voltage, an LED unit driven by a constant voltage applied from the constant voltage unit, a battery unit connected to the converter unit to charge a voltage, and the battery A capacitor module connected in parallel to the unit, a battery charging control unit controlling a charging value of the battery unit, an electrostatic discriminating unit connected to the AC power input unit to detect whether there is a power failure and outputting a power failure detection signal in case of power failure, and an input terminal of the rectifying unit and a battery Is connected to an output terminal and an output terminal is connected to an input terminal of the converter section. Output power to the converter unit and, when a power failure detection signal is received from the electrostatic discriminating unit, a power selection unit for outputting the output power of the battery unit to the converter unit and an illumination control unit for controlling lighting and dimming states of the LED unit. Provided is an emergency power drive device for LED lighting.

Here, the EMI filter unit for removing the noise causing electromagnetic interference generated when the AC input power is applied, the power factor improving unit for improving the power factor by receiving the full-wave rectified voltage and the low battery protection to prevent over-discharge of the battery It is preferable to further include an addition.

The capacitor module is more preferably a capacitor.

In addition, the lighting control unit may drive the entire LED unit during normal operation, and during the power outage, it is more preferable to display the evacuation route information by lighting predetermined LEDs among the LEDs arranged in the LED unit.

The lighting control unit may include a wireless transceiver for receiving a wireless signal modulated by an illumination signal from an external remote controller, a filter unit for separating the wireless signal into an AC signal and an illumination control signal, and the filter unit. A signal conversion unit for converting the AC signal separated from the DC power source, an illumination control signal analysis unit for extracting the lighting LED information and dimming information by analyzing the illumination control signal separated from the filter unit and extraction from the illumination control signal analysis unit And a LED driving controller for driving the LED unit according to the lit LED information and dimming information, wherein the lighting control signal analyzing unit and the LED driving control unit are driven by a DC power supplied from the signal conversion unit.

The filter unit may include a low pass filter for filtering only an AC signal from the wireless signal, a high pass filter for filtering only an illumination control signal from the wireless signal, and a smoothing unit for smoothing the DC power output from the signal converter. The switch unit may further include a switch unit for selectively outputting the DC power input from the smoothing unit or the converter unit to the illumination control signal analyzing unit and the LED driving controller based on the electrostatic detection signal applied from the electrostatic discriminating unit.

According to the present invention as described above, by driving the entire LED unit with the use AC power during normal operation and only the LED set by the battery power in the case of power failure by using a single LED light by expressing evacuation route information on the LED unit There is an effect that can perform the function of the usual lighting device and emergency induction lamp at the same time.

In addition, it is possible to control the lighting and dimming control of the LED light remotely, there is an effect that the lighting control is possible even during a power failure.

In addition, by separating the light control signal carried on the AC signal by using the AC signal as a power source for lighting control has the effect of minimizing the power consumption of the battery in the event of a power failure.

In addition, by installing a capacitor (capacitor module) in parallel with the battery, it is possible to quickly discharge the voltage across the capacitor during instantaneous voltage discharge, thereby preventing the battery damage due to battery over-discharge.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating an emergency power driving device for LED lighting according to the present invention, and FIG. 2 illustrates an example in which an evacuation path is displayed on an LED unit during a power failure.

As shown in FIG. 1, the emergency power driving device for LED lighting according to the present invention includes an AC power input unit 10, an EMI filter unit 20, a rectifier 30, and a power factor improvement unit 40 to which commercial AC power is input. , Power selection unit 50, power failure discrimination unit 60, converter unit 70, constant voltage unit 80, LED unit 90, battery unit 100, capacitor module 110, battery charging control unit 120 ), The low battery protection unit 130 and the lighting control unit 140 is configured.

EMI filter unit 20 is to prevent the malfunction of the device by removing the noise causing electromagnetic interference generated when the AC input power is applied.

The rectifier 30 is a full-wave rectified AC voltage from which the noise is removed from the EMI filter unit 20 to convert the AC voltage into a predetermined DC voltage.

The power factor improving unit 40 is a circuit that receives the full-wave rectified voltage to improve the power factor and outputs the reactive power to reduce the power loss by improving the reactive power to 95% or more of the effective power.

The power selector 50 has an input terminal connected to an output terminal of the power factor improving unit 40 and the battery unit 100 and an output terminal connected to an input terminal of the converter unit 70. An outage detection signal is received. The power selector 50 outputs the output power of the power factor improving unit 40 to the converter unit 70 in the normal operation, and when the power failure detection signal is received from the electrostatic discriminator 60, The output power is output to the converter 700.

The power failure determining unit 60 is connected to the AC power input unit 10 to determine whether the normal AC power is input, and when the normal AC power is not input, determines that the power failure and outputs a power failure detection signal. The power failure detection signal is applied to the power selection unit 50 and the switch unit 143d of FIG. 4 to be described later to control the emergency power supply function during power failure.

The converter 70 converts the DC power rectified by the rectifier 30 into an LED driving voltage, and the output signal of the converter 70 is the battery unit 100 and the capacitor in addition to the constant voltage unit 80 at the rear stage. Applied to 110, the battery unit 100 and the capacitor module 110 are charged in normal operation.

The constant voltage unit 80 maintains the LED driving voltage converted by the converter unit 70 at a constant voltage to prevent damage to the LED unit 90.

The LED unit 90 is a surface light source in which a plurality of LEDs are arranged, which can be used for more than 60,000 hours, and thus has a long life, high efficiency, and high power factor, and has an energy saving effect of about 30% compared to other lighting means. The product has the advantage of preventing environmental pollution. In addition, it has the advantage of low heat generation compared to halogen lamps and incandescent lamps.

The battery unit 100 is connected to the converter unit 70 to charge the DC power supplied from the converter unit 70, a conventional battery capable of multiple charge and discharge can be used.

Capacitor module 110 is connected to the battery unit 100 in parallel to charge the DC power supplied from the converter unit 70 it is preferable to use a capacitor. In other words, the capacitor has a faster discharge rate than a conventional battery, and thus can provide a quick discharge when a problem occurs in the load stage and instant discharge is required, thereby preventing damage to the battery. There is this.

The battery charging control unit 120 controls the charging amount of the battery unit 100 and performs functions such as overvoltage, overcurrent, and temperature protection. When the battery unit 100 or the capacitor module 110 is fully charged, the charging mode is stopped. When the charging voltage is natural discharge, recharging starts as much as it is discharged, and always maintains a full charge state.

The low battery protection unit 130 performs a function of preventing over discharge of the battery unit 100.

The lighting control unit 140 controls the lighting and dimming state of the LED unit. In addition to the usual functions such as the LED illuminance control according to the ambient brightness, the lighting control unit 140 drives the entire LED unit 90 during normal operation, and then operates the LED unit 90 during power failure. By lighting the predetermined LEDs of the LEDs disposed in the) to display the evacuation route information, the LED unit 90 is characterized in that it can perform the function of the emergency induction lamp at the same time in addition to the usual lighting means.

That is, in the event of power failure, the lighting controller 140 maintains the LED of the partial region in the lighting state, and the LEDs of the partial region display the arrow-shaped information as shown in FIG. 2. It is possible to know the location of, evacuation route information can be used in addition to the illustrated arrows, various characters, special characters, symbols and the like.

In addition, the lighting controller 140 may control the LED unit 90 remotely through wireless communication with the remote controller 200 and may also provide a power control function, which is described in detail with reference to FIGS. 3 and 4. I will explain.

3 is a detailed block diagram of the lighting controller of FIG. 1, and FIG. 4 is a detailed block diagram of the filter unit of FIG. 3.

As shown in FIG. 3, the lighting controller 140 according to the present invention includes a wireless transceiver 141, a filter 143, a signal converter 145, a control signal analyzer 147, and an LED driving controller ( 149).

The wireless transceiver 141 receives a radio signal from which an illumination control signal is modulated on an AC signal carrier from an external remote controller 200.

The filter unit 143 separates a wireless signal into an AC signal and an illumination control signal. The filter unit 143 generates a control signal for lighting control as a high frequency signal and transmits the high frequency lighting control signal on a low frequency carrier. .

As shown in FIG. 4, the filter unit 143 includes a low pass filter 143a, a high pass filter 143b, a smoothing unit 143c, and a switch unit 143d.

The low pass filter 143a filters only an AC signal from a wireless signal, and performs a function of separating an AC signal, which is a low frequency carrier, from a wireless signal having a low frequency carrier and an illumination control signal that is a high frequency data signal.

The high pass filter 143b filters only the illumination control signal from the radio signal and performs a function of separating the illumination control signal, which is a high frequency data signal, from the radio signal in which a low frequency carrier and an illumination control signal, which is a high frequency data signal, are mixed. .

The smoothing unit 143c performs a function of smoothing by removing the ripple included in the DC power output from the signal converter 145 described later.

The switch unit 143d has an input terminal connected to an output terminal of the smoothing unit 143c and the converter unit 70 and an output terminal connected to a control signal analyzer 147 and an LED driving controller 149 which will be described later. As an input, the power failure detection unit 60 receives the power failure detection signal. The switching unit 143d supplies power to the control signal analyzing unit 147 and the LED driving control unit 149 using the output voltage of the converter unit 70 when the electrostatic detection signal is not received from the electrostatic determination unit 60. When the power failure detection signal is received from the power failure discrimination unit 60, the power is supplied to the control signal analyzer 147 and the LED driving controller 149 using the output voltage supplied from the smoothing unit 143c. . That is, in the case of power failure, the circuit is driven using the charging voltage of the battery unit 100 and the capacitor module 110 instead of the external commercial power source. In this case, when the remote control signal for lighting control is received, the AC signal included therein is included. By converting to DC power and driving a circuit for lighting control, battery power consumption can be minimized.

The signal converter 145 converts an AC signal separated from the filter into a DC power source, and a technology for converting an AC signal into a DC power source is well known in the art, and thus a detailed description thereof will be omitted.

The control signal analysis unit 147 analyzes the illumination control signal separated from the filter unit 143 to extract lighting LED information and dimming information. The illumination control signal includes information on which LED of the plurality of LEDs to drive and illuminance information of the LED to be lit, and the control signal analyzer 147 provides the LED selection control signal and the illumination control signal to be lit accordingly. Create and send to the back end.

The LED driving controller 149 controls the dimming or lighting of the LED unit 90 based on the control signal received from the control signal analyzer 147.

Here, as described above, the lighting control signal analysis unit 147 and the LED driving control unit 149 are driven by the DC power supplied from the signal conversion unit 145, so that power consumption for lighting control is not required at the time of power failure. Due to this, the power consumption of the battery unit 100 may be minimized.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

1 is a block diagram showing the configuration of an emergency power supply device for LED lighting according to the present invention.

2 illustrates an example in which an evacuation path is displayed on the LED unit during a power failure.

3 is a detailed block diagram of the lighting controller of FIG. 1.

4 is a detailed block diagram illustrating the filter unit of FIG. 3.

<Description of main drawing code>

10: AC power input 20: EMI filter

30: rectifier 40: power factor improvement unit

50: power selection unit 60: power failure discrimination unit

70 converter section 80 constant voltage section

90: LED unit 100: battery unit

110: capacitor module 120: battery charge control unit

130: low battery protection unit 140: lighting control unit

141: wireless transceiver 143: filter unit

143a: low pass filter 143b: high pass filter

143c: smooth part 143d: switch part

145: signal conversion unit 147: lighting control signal analysis unit

149: LED drive control unit 200: remote control device

Claims (6)

An AC power input unit to which external commercial AC power is input; A rectifier for rectifying the commercial AC power into a DC power source; A converter unit converting the rectified DC power into an LED driving voltage; A constant voltage unit for maintaining the LED driving voltage at a constant voltage; An LED unit driven by a constant voltage applied from the constant voltage unit; A battery unit connected to the converter unit to charge a voltage; A capacitor module connected in parallel to the battery unit; A battery charging control unit controlling a charging value of the battery unit; A power failure discrimination unit connected to the AC power input unit to sense whether there is a power failure, and output a power failure detection signal during a power failure; An input terminal is connected to the rectifying unit and a battery unit, and an output terminal is connected to an input terminal of the converter unit. In normal operation, the output unit outputs the output power of the rectifying unit to the converter unit. A power selection unit for outputting output power to the converter unit; And It includes a lighting control unit for controlling the lighting and dimming state of the LED unit, The lighting control unit drives the entire LED unit during normal operation, and in case of power failure, the emergency power driving device for LED lighting, characterized in that to display the evacuation route information by lighting the predetermined LEDs of the LED disposed in the LED unit. The method of claim 1, EMI filter unit for removing noise causing electromagnetic interference generated when the AC input power is applied; A power factor improving unit configured to receive the full-wave rectified voltage to improve and output the power factor; And Emergency power drive device for LED lighting, characterized in that further comprises a low battery protection unit for preventing the over-discharge of the battery. The method of claim 1, The capacitor module is an emergency power supply for LED lighting, characterized in that the capacitor. delete The method of claim 1, The lighting control unit A wireless transceiver for receiving a wireless signal modulated by an illumination signal to an AC signal from an external remote controller; A filter unit for separating the wireless signal into an AC signal and an illumination control signal; A signal converter converting the AC signal separated by the filter into a DC power source; An illumination control signal analysis unit configured to extract illumination LED information and dimming information by analyzing the illumination control signal separated from the filter unit; And Including the LED driving control unit for driving the LED unit in accordance with the lighting LED information and dimming information extracted from the lighting control signal analysis unit, Emergency lighting driving device for LED lighting, characterized in that the illumination control signal analysis unit and the LED driving control unit is driven by a DC power supplied from the signal conversion unit. The method of claim 5, wherein The filter unit A low pass filter for filtering only an AC signal from the wireless signal; A high pass filter for filtering only an illumination control signal from the radio signal; Smoothing unit for smoothing the DC power output from the signal conversion unit; And And a switch unit for selectively outputting the DC power input from the smoothing unit or the converter unit to the illumination control signal analyzing unit and the LED driving control unit based on the electrostatic detection signal applied from the electrostatic discriminating unit. Emergency power drive.

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