CHARGING SYSTEM AND POWER FAILURE DEVICE DETECTING POWER FAILURE OF LED LIGHT

• US 20150015076A1
• Filed: 02/06/2013
• Published: 01/15/2015
• Est. Priority Date: 02/06/2012
• Status: Abandoned Application

• Current Assignee: Seonghoon Park
• Original Assignee: Seonghoon Park
• Inventors: Park, Seonghoon
• Application Number:
  US14/376,908
• Publication Number:
  US 20150015076A1
• Time in Patent Office: Days
• US Class Current: 307/66
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 7/0018 using separate charge circuits
• CPC Class Codes: H02J 7/0024 Parallel/serial switching of connection of batteries to charge or load circuit
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: H02J 7/007182 in response to battery voltage
• CPC Class Codes: H02J 7/007194 of the battery
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: H02J 9/061 for DC powered loads
• CPC Class Codes: H02J 9/065 for lighting purposes
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
• CPC Class Codes: H05B 47/13 by using passive infrared detectors
• CPC Class Codes: Y02B 10/70 Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

In an emergency lighting apparatus, charging efficiency is increased by individually charging cells in a power storage unit. When a power failure or other situation occurs requiring the actual use of the emergency lighting device, the proper operation of the emergency lighting device is ensured. In particular, the disadvantage of additional wiring in a bulb-type lighting fixture and the disadvantage of grounding are addressed so that power can be continuously supplied to the emergency lighting device and the emergency lighting device functions properly.

Claims

1. A charging system of an LED light, comprising:

a converter configured to transform common power input from the outside from DC power to AC power or from the DC power to the DC power;

a power failure detection and determination unit configured to determine the power failure by detecting whether an electric wire receiving external power is a live wire;

a charging unit selectively configured by a charging transformation unit transforming the input power of the converter to a predetermined value, and a charging circuit unit receiving the power supplied from the charging transformation unit to generate a signal controlling a charging current of a battery or an auxiliary power input terminal receiving external auxiliary power;

a power storage unit configured by a battery electrically connected to the charging unit to charge the common power and a low voltage control unit configured to interrupt an electric output when the voltage of the battery is less than a predetermined value;

an output transformation unit configured to transform the output power of the power storage unit to a predetermined value;

a switching unit configured to determine and output the power input to the converter and the power storage unit by receiving the signal of the power failure detection and determination unit during the power failure in which the external power is not input and a selective control unit configured to receive an event signal according to an external sensor detection input;

a constant current control unit configured to transform the output power of the selective control unit to a constant current; and

an LED module installed with one or a plurality of LEDs electrically connected with the constant current control unit.

2. The charging system of the LED light of claim 1, wherein the charging transformation unit is configured to a transformation unit which decompresses or steps-up the voltage of the power input from the converter, and the output transformation unit is configured to decompresses or steps-up and outputs the power of the power storage unit.

3. The charging system of the LED light of claim 1, wherein the charging unit to which the power is input to the input terminals of the converter power and the auxiliary power received from the outside includes a PWM generator controlling a duty of pulse width modulation (PWM), a switching element performing switch-driving according to the duty control of the charging unit, and a sensor detecting a temperature and a current of the power charging unit and controlling the duty of the PWM, and controls the PWM of the charging power of the battery by receiving a full-charging voltage of the battery to interrupt and control the supply of the charging power.

4. The charging system of the LED light of claim 1, wherein the power storage unit is provided as one or more of a nickel-hydride battery, a lithium polymer battery, a lithium-iron phosphate battery, a hybrid capacitor and an electric double-layer capacitor, and a hybrid battery.

5. The charging system of the LED light of claim 1, wherein the selective control unit is configured to transfer an event signal to an alarm signal to generate an alarm sound or an alarm voice or drive self-circuits for lighting an alarm lamp, and additionally, in any one of the charging unit 15, the charging circuit unit 15B, or the power storage unit 16, a full-charging indicator, a low voltage indicator, or a charging amount displaying indicator is configured.

6. The charging system of the LED light of claim 1, wherein the selective control unit is configured by selecting one or more of a vibration sensor, a flame sensor, a PIR sensor, an illumination sensor, a radio receiver as an event signal input to the selective control unit, and determines lighting or not of the LED module by the PIR sensor or the illumination sensor, the earthquake by the vibration, the fire by the flame detection, and the disaster information and the power failure signal by the radio receiver individually allocated to the LED light to perform lighting on or off of the LED module.

7. The charging system of the LED light of claim 6, wherein the radio receiver, in which a unique number (or ID) is allocated for each radio receiver individually allocated to the LED light is configured to selectively control the lighting on or off of the LED module.

8. The charging system of the LED light of claim 1, wherein the power failure detection and determination unit is configured to be driven by the converter power or the power of the power storage unit, and the converter further includes an EMI filter and a fuse for interrupting electronic waves in the external power input terminal.

9. The charging system of the LED light of claim 1, wherein the selective control unit is a means for receiving a user'"'"'s lighting on/off operation command, and the selective control unit includes one or more of a mechanical key button, a touch sensor, and a remote receiving unit, and the like.

10. The charging system of the LED light of claim 1, wherein the charging unit includes a switch means S1 which is turned on to be divided in parallel between cells configured with a plurality of batteries in series when the power supply of the charging unit is determined to be evenly charged, and a control means controlling to be electrically connected between the plurality of cells in series while a switch means S2 configured to be electrically connected between the cells in series when the switch means S1 is turned on is turned off, and a signal according to a full-charging of each cell or the S1 during discharging is turned off, and the S2 is turned off.

11. The charging system of the LED light of claim 10, wherein the charging unit is configured by selecting any one of the switch means S1 which is turned on to be divided in parallel between the plurality of cells configured in series to be evenly charged and a switch means S2 configured to be electrically connected between the plurality of cells in series.

12. A power failure detecting device of an LED light, comprising:

a detection unit coupled with a part in a power failure detection and determination unit of the LED light so as to determine a power failure by detecting whether an electric wire receiving external power is a live wire or not, by surrounding an outside of the electric wire receiving the external power input;

an amplifying unit configured to detect a signal induced by forming the detection unit in a ring shape or C shape along the outside of the electric wire and amplify and output a predetermined potential input signal input to the detection unit;

a live-wire detection unit configured to detect a signal of the amplifying unit to output the signal according to the determination whether the predetermined potential is input; and

a switching unit configured to determine and output the input signal of the live-wire detection unit, wherein when it is determined as a power failure in which the external power supply is not input to the electric wire, a power failure detection and determination output according to a switching element for controlling in which an output signal of the switching unit is output to an optimal driving voltage is included.

13. The power failure detecting device of the LED light of claim 12, wherein the power failure detection and determination unit performs voltage detection by detecting an undercurrent flowing in the electric wire receiving the external power input and amplifying the input signal according to the detection of the undercurrent flow.

14. A power failure detection and determination device of an LED light, comprising:

a decompression means connected to an electric wire supplying external DC power or AC power; and

a power failure detection and determination unit connected to the decompression means, wherein the power failure detection and determination unit determines that the electric wire is in a live-wire state when the current flow is detected in the power failure detection and determination unit.

15. A charging system for an LED light including the power failure detection and determination device of claim 14.

16. The power failure detection and determination device of the LED light of claim 14, wherein the power failure detection and determination unit further includes an amplifying unit amplifying an input signal decompressed according to the current flow detection.

17. The power failure detection and determination device of the LED light of claim 14, wherein the power failure detection and determination unit further includes a switching unit outputting the live-wire state of the electric wire as an electric signal value.

18. The power failure detection and determination device of the LED light of claim 14, wherein the decompression means is configured by a decompression resistor, a capacitor for voltage drop, or a combination of a current rectifying diode and the decompression resistor, and further includes a combination of the capacitor for voltage drop and the decompression resistor.