WO2017128662A1 - Led照明应急一体灯及控制系统 - Google Patents

Led照明应急一体灯及控制系统 Download PDF

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Publication number
WO2017128662A1
WO2017128662A1 PCT/CN2016/092024 CN2016092024W WO2017128662A1 WO 2017128662 A1 WO2017128662 A1 WO 2017128662A1 CN 2016092024 W CN2016092024 W CN 2016092024W WO 2017128662 A1 WO2017128662 A1 WO 2017128662A1
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WO
WIPO (PCT)
Prior art keywords
resistor
capacitor
diode
switch
emergency
Prior art date
Application number
PCT/CN2016/092024
Other languages
English (en)
French (fr)
Inventor
陈友鹏
Original Assignee
深圳市诚丰浩电子有限公司
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Publication of WO2017128662A1 publication Critical patent/WO2017128662A1/zh

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the invention relates to the technical field of LED lighting, in particular to an LED lighting emergency integrated lamp and a control system.
  • LED lighting emergency integrated lamp In order to ensure that people can still provide lighting when the city is abnormal, LED lighting emergency integrated lamp has been more and more widely used.
  • the LED lighting emergency integrated lamp activates the internal energy storage battery and supplies power to the LED light string parallel group.
  • the emergency response time of the LED lighting emergency integrated lamp is 2-3 hours.
  • the emergency switch only has the function of turning on the LED light string parallel group in the power failure. Therefore, once the emergency switch is closed during a power outage, the LED string parallel group will continue to supply power until the energy storage battery is exhausted.
  • An LED lighting emergency integrated lamp is used for connecting with an emergency switch.
  • the LED lighting emergency integrated lamp comprises: an LED light string parallel group; a boosting circuit for driving the LED light string parallel group; and a switch detecting circuit respectively Connecting to the emergency switch and the mains zero line end; the switch detecting circuit is configured to drive the boosting circuit to operate when the mains is abnormal and the emergency switch is closed, and the switch detecting circuit is further used for the mains Abnormally stopping the driving of the boosting circuit when the emergency switch is turned off; the battery pack is configured to supply power to the switch detecting circuit and the boosting circuit when the utility power is abnormal; and the AC-DC power supply is respectively associated with the emergency switch a mains terminal connection; the AC-DC power source is configured to charge the battery pack and supply power to the booster circuit when the utility power is normal and the emergency switch is closed, and the AC-DC power supply further It is used to stop the power supply when the mains is normal and the emergency switch is disconnected.
  • An LED lighting emergency integrated lamp control system an LED lighting emergency integrated lamp; and an emergency switch, wherein the emergency switch is connected between the mains and the LED lighting emergency integrated lamp; wherein the LED lighting emergency integrated lamp
  • the utility model comprises: a LED light string parallel group; a boosting circuit, configured to drive the LED light string parallel group; and a switch detecting circuit respectively connected to the emergency switch and the main power zero line end; the switch detecting circuit is used in the city The boosting circuit is driven when the electrical abnormality is abnormal and the emergency switch is closed, and the switch detecting circuit is further configured to stop driving the boosting circuit when the utility power is abnormal and the emergency switch is turned off; the battery pack is used for Supplying power to the switch detection circuit and the booster circuit when the utility power is abnormal; the AC-DC power supply is respectively connected to the emergency switch and the mains zero line end; and the AC-DC power supply is used for normal power supply and The battery pack is charged and powered to the booster circuit when the emergency switch is closed, and the AC-DC power source is further configured to stop powering when the utility
  • a boosting circuit is used for driving the LED light string parallel group.
  • the battery pack supplies power to the switch detection circuit and the booster circuit when the utility power is abnormal.
  • the AC-DC power supply charges the battery pack and supplies power to the boost circuit when the utility power is normal and the emergency switch is closed, and the AC-DC power supply stops supplying power when the utility power is normal and the emergency switch is turned off. Therefore, when the utility power is normal, the LED light string parallel group can be turned on or off correspondingly through the AC-DC power supply and the boosting circuit when the emergency switch is closed or disconnected.
  • the switch detection circuit is configured to drive the boost circuit when the utility power is abnormal and the emergency switch is closed, and the switch detection circuit is further configured to stop driving the boost circuit when the utility power is abnormal and the emergency switch is turned off. Therefore, when the utility power is abnormal, the LED lighting emergency integrated lamp and the control system can still open or close the LED light string parallel group through the switch detection circuit, the battery pack and the boost circuit under the closing and opening of the emergency switch. In summary, regardless of the normal power supply or the abnormality of the mains, the LED lighting emergency integrated lamp and control system can turn on or off the LED light string parallel group according to the emergency switch, which overcomes the traditional emergency switch can only turn on the LED when the power is cut off. The problem of parallel strings of strings.
  • FIG. 1 is a structural diagram of a LED lighting emergency integrated lamp control system according to an embodiment.
  • FIG. 2 is a circuit diagram of an AC-DC power supply in the LED lighting emergency integrated lamp control system of the embodiment shown in FIG. 1.
  • FIG. 3 is a circuit diagram of a switch detecting circuit in the LED lighting emergency integrated lamp control system of the embodiment shown in FIG. 1.
  • FIG. 4 is a circuit diagram of a booster circuit and a parallel series of LED lights in the LED lighting emergency integrated lamp control system of the embodiment shown in FIG. 1.
  • the LED lighting emergency integrated lamp control system includes an emergency switch K4 and an LED lighting emergency integrated lamp 100.
  • the LED lighting emergency integrated lamp 100 is used for connecting with the emergency switch K4.
  • the emergency switch K4 is connected between the input terminal of the commercial power line and the LED lighting emergency integrated lamp 100.
  • the LED lighting emergency integrated lamp 100 includes an AC-DC power supply 110, a battery pack 120, a boosting circuit 130, a switch detecting circuit 140, and an LED lamp series-parallel group 150.
  • the AC-DC power supply 110 and the switch detection circuit 140 are respectively connected to the emergency switch K4 and the mains zero line end.
  • the LED lighting emergency integrated lamp control system controls the LED light string parallel group 150 to be turned on or off by the emergency switch K4, the AC-DC power source 110 and the boosting circuit 130 when the utility power is normal; and the utility power is abnormal.
  • the LED lamp string parallel group 150 is controlled to be turned on or off by the emergency switch K4, the switch detecting circuit 140, the battery pack 120, and the boosting circuit 130.
  • the working principle of each module will be specifically described below.
  • the AC-DC power supply 110 charges the battery pack 120 and supplies power to the booster circuit 130 when the commercial power is normal and the emergency switch K4 is closed, that is, the AC-DC power supply 110 outputs two voltages respectively, one of which is used for the battery. Group 120 is charged and the other voltage is used to power boost circuit 130. It should be noted that the two voltages output by the AC-DC power supply 110 need to meet the requirements that the battery pack 120 can be normally charged and the boosting circuit 130 can work normally. For example, the AC-DC power supply 110 outputs 28V voltage to the boosting circuit 130. The power is supplied while the AC-DC power supply 110 outputs a voltage of 12 V for charging the battery pack 120.
  • the AC-DC power supply 110 stops supplying power when the commercial power is normal and the emergency switch K4 is turned off. At this time, the battery pack 120 stops charging, and the boosting circuit 130 stops operating. Therefore, the AC-DC power supply 110 is in an active state only when the mains is normal and the emergency switch K4 is closed.
  • the AC-DC power supply 110 includes a fuse F1, a bridge rectifier diode DB1, a resistor R3, a resistor R4, a resistor R15, a resistor R14, a chip U1, a polarity capacitor C2, a diode D1, and a resistor R18.
  • resistor R20 MOS transistor Q3, resistor R17, capacitor C12, resistor R19, capacitor C17, resistor R22, resistor R8, capacitor C5, diode D2, polarity capacitor C3, transformer T1, diode D4, polarity capacitor C8, diode D3
  • the polarity capacitor C7 is the polarity capacitor C7.
  • the fuse F1 is connected to the emergency switch K4, and the other end of the fuse F1 is connected to the live line AC port of the bridge rectifier diode DB1.
  • the neutral line port of the bridge rectifier diode DB1 is connected to the mains neutral line.
  • the positive pole of the bridge rectifier diode DB1 is connected to one end of the resistor R3, one end of the resistor R8, one end of the capacitor C5, the anode of the polar capacitor C3, and the transformer.
  • the first port (ie, 1 leg) of the primary winding of T1 is connected.
  • the other end of the capacitor C5 is connected to the cathode of the diode D2 and the other end of the resistor R8, respectively.
  • the anode of diode D2 is coupled to the second port (ie, pin 2) of the primary winding of transformer T1.
  • the VCC pin of the chip U1 is respectively connected to one end of the resistor R4, the anode of the polar capacitor C2 and the cathode of the diode D1, and the other end of the resistor R4 is connected to the other end of the resistor R3, and the anode of the diode D1 and one end of the resistor R15 and
  • the first port (ie, 4 pins) of the secondary first winding of the transformer T1 is connected, and the other end of the resistor R15 is connected to one end of the resistor R14.
  • the FB pin of the chip U1 is connected to the common terminal of the resistor R15 and the resistor R14.
  • the OUT pin of the chip U1 is connected to one end of the resistor R18, and the other end of the resistor R18 is respectively connected to one end of the resistor R20 and the gate of the MOS transistor Q3, and the drain of the MOS transistor Q3 is connected to the common terminal of the diode D2 and the transformer T1, MOS
  • the source of the tube Q3 is connected to the other end of the resistor R20, one end of the resistor R19, and one end of the resistor R22.
  • the COMP pin of the chip U1, the resistor R17 and the capacitor C12 are sequentially connected.
  • the CS pin of the chip U1 is respectively connected to one end of the capacitor C17 and the other end of the resistor R19, and the other end of the capacitor C17 is grounded together with the other end of the resistor R22.
  • the second port (ie 5 feet) is grounded.
  • the first port (ie, 6 pins) of the secondary second winding of the transformer T1 is connected to the anode of the diode D4, the cathode of the diode D4 is connected to the anode of the polar capacitor C8, and the common terminal of the polar capacitor C8 and the diode D4 is used for
  • the boost circuit 130 provides a supply voltage.
  • the negative pole of the polar capacitor C8 and the tap of the secondary second winding of the transformer T1 ie, the 9-pin
  • the second port of the secondary winding of the transformer T1 (ie, the 7th pin) is connected to the anode of the diode D3, the cathode of the diode D3 is connected to the anode of the polar capacitor C7, and the common terminal of the polar capacitor C7 and the diode D3 is used for
  • the battery pack 120 provides a charging voltage.
  • the negative pole of the polar capacitor C7 is grounded.
  • the commercial power 220V enters the bridge rectifier diode DB1 through the fuse F1 for rectification, and then is filtered by the polarity capacitor C3, and then Enter the first port of the primary winding of the transformer T1 (ie, 1 pin), and exit from the second port (ie, 2 pin) of the primary winding of the transformer T1, and then pass through the drain and source of the MOS transistor Q3 and then pass through the resistor R22.
  • the entire AC-DC power source 110 forms a path to begin normal operation.
  • the chip U1 and its peripheral circuits are used to drive the transformer T1.
  • Resistor R15 and resistor R14 form a voltage regulator loop to ensure regulated operation of AC-DC power supply 110.
  • Resistors R3 and R4 form the start-up circuit and charge the polar capacitor C2. When the voltage of the polar capacitor C2 reaches 12.8V, the chip U1 starts to operate.
  • transformer T1 produces two induced voltages.
  • the first induced voltage from the transformer T1 The first port (ie, 6 pins) of the secondary second winding and the tap (ie, 9 pins) are output, and are rectified and filtered by the diode D4 and the polar capacitor C8 to generate a first voltage output from the AC-DC power source 110. (Used to power the boost circuit 130, such as 28V).
  • Second induced voltage from transformer T1 The second port of the secondary second winding (ie, the 7-pin) and the tap (ie, the 9-pin) are output, and are rectified and filtered by the diode D3 and the polar capacitor C7 to generate a second voltage output from the AC-DC power supply 110. (For charging the battery pack 120, for example 12V).
  • the specific circuit of the AC-DC power supply 110 is not limited to the above one, as long as it can realize charging to the battery pack 120 and supplying power to the boosting circuit 130 when the commercial power is normal and the emergency switch K4 is closed, and in the commercial power supply.
  • the function of stopping the power supply when the emergency switch K4 is off is normal, for example, the filter circuit is replaced by other types of filter circuits.
  • the battery pack 120 supplies power to the switch detecting circuit 140 and the boosting circuit 130 when the mains is abnormal. Since the battery pack 120 is charged by the power supplied from the AC-DC power supply 110 when the commercial power is normal, the battery pack 120 can supply power to the switch detecting circuit 140 and the boosting circuit 130 using the stored energy when the commercial power is abnormal.
  • a setting between the AC-DC power source 110 and the battery pack 120 can be performed to control the entire charging process.
  • a charging module that can perform voltage conversion. For example, the charging module converts the 12V voltage output from the AC-DC power source 110 to 8.4V, and inputs the 8.4V voltage into the battery pack 120.
  • the voltage conversion can also be performed by setting a voltage conversion module to ensure that the switch detection circuit 140 and the boost circuit 130 operate normally.
  • the switch detecting circuit 140 is configured to drive the boosting circuit 130 to operate when the utility power is abnormal and the emergency switch K4 is closed.
  • the switch detecting circuit 140 is further configured to stop driving the boosting circuit 130 when the utility power is abnormal and the emergency switch K4 is turned off.
  • the switch detecting circuit 140 since the battery pack 120 can supply power to the switch detecting circuit 140 when the mains is abnormal, the switch detecting circuit 140 has a power supply, and the function of the control boosting circuit 130 can be realized.
  • the switch detection circuit 140 is connected to the internal resistance 300 of the power grid through the emergency switch K4, that is, the switch detection circuit 140 and the emergency switch K4, and the internal resistance of the power grid 300 pass through the commercial power line.
  • the mains line is connected.
  • the battery pack 120, the switch detecting circuit 140, the emergency switch K4, and the internal resistance 300 of the power grid form a loop when the emergency switch K4 is closed, and the circuit is disconnected when the emergency switch K4 is turned off.
  • the switch detecting circuit 140 drives the boosting circuit 130 to operate when the loop is formed, and the switch detecting circuit 140 stops driving the boosting circuit 130 when the loop is turned off. That is to say, the state of the above loop is determined by the emergency switch K4, so the switch detecting circuit 140 can control the running or stopping of the boosting circuit 130 according to the state of the above-mentioned loop, that is, according to the closing or opening of the emergency switch K4. .
  • the switch detection circuit 140 includes a connected detection unit and a drive unit.
  • the detecting unit is configured to output a turn-on signal when the loop is formed and transmit the turn-on signal to the driving unit, and the detecting unit stops running when the loop is disconnected.
  • the driving unit is configured to drive the boosting circuit 130 to operate according to the above-described turn-on signal.
  • the detecting unit includes a resistor R43, a resistor R58, a transistor Q2, a resistor R41, and a resistor R47.
  • One end of the resistor R43 is connected to the emergency switch K4.
  • the resistor R41 is connected between the mains terminal and the ground.
  • the emitter of the transistor Q2 and the one end of the resistor R58 are connected to the power supply voltage of the battery pack 120 (for example, VCC5V), and the base of the transistor Q2 is respectively connected to the other end of the resistor R58 and the other end of the resistor R43, and the collector of the transistor Q2 is
  • the resistor R47 is connected, and the collector of the transistor Q2 and the common terminal of the resistor R47 are connected to the driving unit.
  • the other end of the resistor R47 is grounded.
  • the transistor Q2 is turned on, and its collector output voltage signal is equivalent to the detection unit inputting an on signal to the driving unit.
  • the supply voltage ie, VCC5V
  • the resistor R58, the resistor R43, the emergency switch K4 the internal resistance 300, the resistor R41, and the ground circuit provided by the battery pack 120 are disconnected.
  • the transistor Q2 is turned off, that is, the detecting unit stops operating.
  • the driving unit includes: an MCU chip U7, a resistor R44, a transistor Q12, and a resistor R71.
  • the first input end (ie, 7 feet) of the MCU chip U7 is connected to the output end of the detecting unit, wherein the output end of the detecting unit is the common end of the collector of the transistor Q2 and the resistor R47.
  • the second input end (ie, 8 pins) of the MCU chip U7 is connected to the power supply voltage of the battery pack 120 (ie, VCC5V), and the output end of the MCU chip U7 (ie, 2 pins) is connected to one end of the resistor R44.
  • the base of the transistor Q12 is connected to the other end of the resistor R44, the collector of the transistor Q12 is connected to the supply voltage of the battery pack 120 (ie, VCC5V), and the emitter of the transistor Q12 is connected to one end of the resistor R71.
  • the other end of the resistor R71 is connected to the input terminal of the booster circuit 130.
  • the output voltage of the battery pack 120 can be converted into a voltage suitable for the operation of the switch detecting circuit 140 by a voltage converter (for example, if the output voltage of the battery pack 120 is 8.4V, Then use a voltage converter to convert 8.4V to 5V).
  • the MCU chip U7 is used to detect the signal output by the detecting unit, and once the detecting unit outputs the conduction signal, the MCU chip U7 detects whether the input voltage of the first input terminal enters the set threshold interval, and if so, Determining the detection unit output conduction signal), Then, the MCU chip U7 outputs a signal capable of driving the booster circuit 130 according to the turn-on signal (for example, the MCU chip U7 adjusts the magnitude of the output voltage to satisfy the booster circuit 130. Start voltage requirement). Then, it is amplified by the transistor Q12, and finally the LED drive signal whose potential is high is output through the resistor R71 to drive the booster circuit 130 to operate.
  • the MCU chip U7 stops outputting, and the transistor Q12 is turned off. At this time, the LED driving signal output by the driving unit is low, that is, the driving unit stops driving the boosting circuit 130. .
  • the MCU chip U7 is further configured to detect whether the second input terminal (ie, the 8-pin) receives the power supply voltage of the battery pack 120, thereby ensuring that the entire switch detection circuit 140 can operate normally.
  • the specific structure of the switch detecting circuit 140 is not limited to the above one, as long as the driving boost circuit 130 can be operated when the mains abnormality and the emergency switch K4 is closed, and the mains abnormality and the emergency switch K4 are disconnected.
  • the function of driving the boosting circuit 130 may be stopped.
  • the above-mentioned polarized transistor is replaced with a MOS tube.
  • the boosting circuit 130 is configured to drive the LED string parallel group 150.
  • the boosting circuit 130 is used to drive the LED string parallel group 150 in both the normal power supply and the mains abnormality, and the power supply power taken by the boosting circuit 130 is different in both cases.
  • the boosting circuit 130 includes a connected power control unit and a boosting unit.
  • the power control unit is configured to use the AC-DC power supply 110 as a power supply when the utility power is normal and the emergency switch K4 is closed, and the power control unit is further configured to use the battery pack 120 as a power supply when the utility power is abnormal and the emergency switch K4 is closed.
  • the boosting unit is configured to provide a voltage suitable for the operation of the LED string parallel group 150 according to the power supply. Therefore, the booster circuit 130 drives the LED lamp string parallel group 150 by the commercial power when the commercial power is normal, and drives the LED lamp string parallel group 150 by the energy storage power source (ie, the battery pack 120) when the commercial power is abnormal.
  • the power control unit includes a resistor R41, a transistor Q12, a resistor R42, a resistor R56, a MOS transistor Q9, a diode D16, a polarity capacitor C29, and an inductor L11.
  • the one end of the resistor R41 is connected to the output end of the switch detecting circuit 140 (ie, the other end of the resistor R71) for receiving the LED driving signal output by the switch detecting circuit 140.
  • the collector of the transistor Q12 is connected to one end of the resistor R42, the base of the transistor Q12 is connected to the other end of the resistor R41, and the emitter of the transistor Q12 is grounded.
  • the other end of the resistor R42 is connected to one end of the resistor R56.
  • the gate of the MOS transistor Q9 is connected to the common terminal of the resistor R42 and the resistor R56, and the drain of the MOS transistor Q9 and the other end of the resistor R56 are commonly connected to the power supply voltage of the battery pack 120 (for example, 8.4V), and the source of the MOS transistor Q9 is The anode of the diode D16 is connected, and the cathode of the diode D16 is connected to the anode of the polar capacitor C29 and one end of the inductor L11, respectively.
  • the positive terminal of the polar capacitor C29 and the common terminal of the inductor L11 are also connected to the supply voltage of the AC-DC power source 110 (ie, the first path voltage output by the AC-DC power source 110, for example, 28V).
  • the other end of the polarity capacitor C29 is grounded.
  • the other end of the inductor L11 is connected to the boosting unit.
  • the boosting unit includes resistor R63, capacitor C20, Zener diode ZD24, resistor R48, voltage converter U6, capacitor C25, resistor R49, capacitor C26, resistor R55, capacitor C27, resistor R50, MOS transistor Q7, resistor R53, resistor R25 , diode D12 and polarity capacitor C21.
  • the voltage converter U6 and the MOS transistor Q7 and its peripheral circuits are used to jointly drive the LED string parallel group 150 (for example, finally supplying 36V voltage to the LED string parallel group 150).
  • One end of the resistor R63 is connected to the common terminal of the MOS transistor Q9 and the diode D16.
  • One end of the resistor R48 is connected to one end of the capacitor C25.
  • the eighth pin of the voltage converter U6 is connected to the other end of the resistor R63, one end of the capacitor C20, the negative terminal of the Zener diode ZD24, and the other end of the resistor R48.
  • the seventh pin of the voltage converter U6 is connected to one end of the capacitor C27.
  • the sixth pin of the voltage converter U6 is connected to the source of the MOS transistor Q7, the fifth pin of the voltage converter U6 is connected to one end of the resistor R50, and the fourth pin of the voltage converter U6 is connected to one end of the resistor R55.
  • the third pin of the voltage converter U6 is connected to one end of the resistor R49, and the second pin of the voltage converter U6 is connected to the common terminal of the resistor R48 and the capacitor C25.
  • the other end of the resistor R49 is connected to one end of the capacitor C26.
  • the other end of the resistor R55 is connected to the negative pole of the LED lamp string parallel group.
  • the other end of the capacitor C20 is commonly grounded to the anode of the Zener diode ZD24.
  • the other end of the capacitor C25, the other end of the capacitor C26, the first pin of the voltage converter U6, and the other end of the capacitor C27 are grounded.
  • the gate of the MOS transistor Q7 is connected to the other end of the resistor R50, the source of the MOS transistor Q7 is also connected to one end of the resistor R53, and the drain of the MOS transistor Q7 is connected to the common terminal of the inductor L11 and the diode D12.
  • the other end of the resistor R53 is grounded together with one end of the resistor R25, and the other end of the resistor R25 is connected to the cathode of the LED lamp string parallel group 150.
  • the cathode of the diode D12 and the anode of the polar capacitor C21 are connected in common to the anode of the LED lamp string parallel group 150, and the cathode of the polar capacitor C21 is grounded.
  • the power control unit uses the AC-DC power supply 110 as the power supply, and then the power supply current passes. After the polarity capacitor C29 and the inductor L11 are filtered, the MOS transistor Q7 and the resistor R53 are grounded, so that the boosting unit is turned on, and then the driving signal is outputted by the boosting unit to turn on the LED string parallel group 150.
  • the boost circuit 130 is based on Whether the AC-DC power supply 110 operates to control the LED light string parallel group 150: if the AC-DC power supply 110 is normally powered (ie, the commercial power is normal and the emergency switch K4 is closed), the boosting circuit 130 drives the LED light string parallel group 150, which When the LED light string parallel group 150 is turned on; if the AC-DC power source 110 stops supplying power (ie, the commercial power is normal and the emergency switch K4 is turned off), the boosting circuit 130 stops driving the LED light string parallel group 150, and the LED light string is connected in parallel. Group 150 is extinguished.
  • the transistor Q12 is turned on (ie, the switch detection circuit 140 drives the boost). Circuit 130 operates). Then, the supply voltage of the battery pack 120 connected to the drain of the MOS transistor Q9 and the other end of the resistor R56 is the power supply of the booster circuit 130. At this time, the MOS transistor Q9 is turned on, and the power supply current is filtered by the diode D16, filtered by the polar capacitor C29 and the inductor L11, and then passed through the MOS transistor Q7 and the resistor R53, and the boosting unit is also turned on. Then, the driving signal can be outputted through the boosting unit to turn on the LED string parallel group 150.
  • the boosting circuit 130 controls the LED string parallel group 150 on the basis of the power supply of the battery pack 120 and under the control of the switch detecting circuit 140: if the LED driving signal output by the switch detecting circuit 140 When the potential is high (ie, the mains is abnormal and the emergency switch K4 is closed), the boosting circuit 130 drives the LED string parallel group 150, and the LED string parallel group 150 is turned on; if the LED driving signal output by the switch detecting circuit 140 is low When the potential (i.e., the mains is abnormal and the emergency switch K4 is turned off), the boosting circuit 130 stops driving the LED string parallel group 150, and the LED string parallel group 150 is extinguished.
  • the specific structure of the booster circuit 130 is not limited to the above one, as long as the LED string parallel group 150 is turned on when the AC-DC power source 110 is powered, and the battery pack 120 is powered and the switch detecting circuit 140 is turned on.
  • the function of turning on the LED string parallel group 150 under the driving can be, for example, replacing the filter circuit with other forms.
  • the working principle of the LED lighting emergency integrated lamp control system is as follows:
  • the AC-DC power supply 110 When the utility power is normal and the emergency switch K4 is closed, the AC-DC power supply 110 outputs two voltages, one for supplying power to the boost circuit 130 and the other for charging the battery pack 120. At this time, the boosting circuit 130 uses the AC-DC power supply 110 as a power supply and turns on the LED light string parallel group 150.
  • the AC-DC power supply 110 stops outputting the voltage, then the battery pack 120 stops charging, the boosting circuit 130 stops operating, and the LED light string parallel group 150 is extinguished.
  • the battery pack 120 supplies power to the switch detecting circuit 140 and the boosting circuit 130.
  • the switch detecting circuit 140 is turned on, and drives the boosting circuit 130 to operate.
  • the booster circuit 130 drives the LED lamp string parallel group 150 according to the power source provided by the battery pack 120, thereby turning on the LED lamp string parallel group 150.
  • the switch detecting circuit 140 stops driving the boosting circuit 130, and at this time, the boosting circuit 130 stops operating.
  • the LED string parallel group 150 is extinguished.
  • the LED lighting emergency integrated lamp and the control system provided by the embodiment can respectively turn on or off the LED light string parallel group according to the emergency switch closing or opening, thereby overcoming the traditional emergency switch.
  • the LED string parallel group can be turned on, so that the LED string parallel group can be lit only when power is required.

Abstract

一种LED照明应急一体灯，用于与应急开关连接，包括：LED灯串并联组（150）；升压电路（130），用于驱动LED灯串并联组（150）；开关检测电路（140），分别与应急开关、市电零线端连接，并用于在市电异常且应急开关闭合时驱动升压电路（130）运行，还用于在市电异常且应急开关断开时停止驱动升压电路（130）；电池组（120），用于在市电异常时向开关检测电路（140）及升压电路（130）供电；AC-DC电源（110），分别与应急开关、市电零线端连接，并用于在市电正常且应急开关闭合时向电池组（120）充电并向升压电路（130）供电，还用于在市电正常且应急开关断开时停止供电。

Description

LED照明应急一体灯及控制系统
【技术领域】
本发明涉及LED照明技术领域，特别是涉及一种LED照明应急一体灯及控制系统。
【背景技术】
随着LED照明技术的发展，为了保证在市电异常时仍然能够向人们提供照明，LED照明应急一体灯得到了越来越广泛的应用。
对于传统的LED照明应急控制系统来说，一旦市电异常而停止供电，只要将应急开关闭合，LED照明应急一体灯即启动内部的储能电池，并向LED灯串并联组供电。通常情况下，LED照明应急一体灯的供电应急时长共为2-3小时。然而在传统的LED照明应急控制系统中，应急开关在停电时只具备开启LED灯串并联组的功能。因此在停电时一旦应急开关闭合，LED灯串并联组就会持续供电并直到储能电池的电量耗尽为止。
【发明内容】
基于此，有必要提供一种LED照明应急一体灯及控制系统，使得应急开关无论在市电正常还是异常时，均能开启或关闭LED灯串并联组。
一种LED照明应急一体灯，用于与应急开关连接，所述LED照明应急一体灯包括：LED灯串并联组；升压电路，用于驱动所述LED灯串并联组；开关检测电路，分别与所述应急开关、市电零线端连接；所述开关检测电路用于在市电异常且所述应急开关闭合时驱动所述升压电路运行，所述开关检测电路还用于在市电异常且所述应急开关断开时停止驱动所述升压电路；电池组，用于在市电异常时向所述开关检测电路及升压电路供电；AC-DC电源，分别与所述应急开关、市电零线端连接；所述AC-DC电源用于在市电正常且所述应急开关闭合时向所述电池组充电并向所述升压电路供电，且所述AC-DC电源还用于在市电正常且应急开关断开时停止供电。
一种LED照明应急一体灯控制系统，LED照明应急一体灯；及应急开关，所述应急开关连接于市电火线端与所述LED照明应急一体灯之间；其中，所述LED照明应急一体灯包括：LED灯串并联组；升压电路，用于驱动所述LED灯串并联组；开关检测电路，分别与所述应急开关、市电零线端连接；所述开关检测电路用于在市电异常且所述应急开关闭合时驱动所述升压电路运行，所述开关检测电路还用于在市电异常且所述应急开关断开时停止驱动所述升压电路；电池组，用于在市电异常时向所述开关检测电路及升压电路供电；AC-DC电源，分别与所述应急开关、市电零线端连接；所述AC-DC电源用于在市电正常且所述应急开关闭合时向所述电池组充电并向所述升压电路供电，且所述AC-DC电源还用于在市电正常且应急开关断开时停止供电。
在该LED照明应急一体灯及控制系统中，升压电路，用于驱动所述LED灯串并联组。电池组，在市电异常时向开关检测电路及升压电路供电。AC-DC电源在市电正常且应急开关闭合时向电池组充电并向升压电路供电，且AC-DC电源在市电正常且应急开关断开时停止供电。因此市电正常时在应急开关的闭合、断开下能通过AC-DC电源及升压电路相应打开或关闭LED灯串并联组。另外，开关检测电路用于在市电异常且应急开关闭合时驱动升压电路运行，开关检测电路还用于在市电异常且应急开关断开时停止驱动升压电路。因此在市电异常时该LED照明应急一体灯及控制系统仍然能够在应急开关的闭合、断开下通过开关检测电路、电池组及升压电路相应打开或关闭LED灯串并联组。综上所述，无论市电正常还是市电异常，该LED照明应急一体灯及控制系统都能够根据应急开关来开启或关闭LED灯串并联组，克服了传统应急开关在停电时只能开启LED灯串并联组的问题。
【附图说明】
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他实施例的附图。
图1为一实施例的LED照明应急一体灯控制系统的组成结构图。
图2为图 1所示实施例的LED照明应急一体灯控制系统中AC-DC电源的电路图。
图3为图 1所示实施例的LED照明应急一体灯控制系统中开关检测电路的电路图。
图4为图 1所示实施例的LED照明应急一体灯控制系统中升压电路及LED灯串并联组的电路图。
【具体实施方式】
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施例。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于发明的技术领域的技术人员通常理解的含义相同。本文中在发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在限制本发明。本文所使用的术语“和／或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1所示，LED照明应急一体灯控制系统包括应急开关K4及LED照明应急一体灯100。其中，LED照明应急一体灯100用于与应急开关K4连接。同时，应急开关K4连接于市电火线输入端与LED照明应急一体灯100之间。LED照明应急一体灯100包括AC-DC电源110、电池组120、升压电路130、开关检测电路140及LED灯串并联组150。其中，AC-DC电源110、开关检测电路140均分别与应急开关K4、市电零线端连接。
本实施例提供的LED照明应急一体灯控制系统，在市电正常时通过应急开关K4、AC-DC电源110及升压电路130来控制LED灯串并联组150打开或熄灭；而在市电异常时通过应急开关K4、开关检测电路140、电池组120及升压电路130来控制LED灯串并联组150打开或熄灭。以下将具体介绍各模块的工作原理。
AC-DC电源110，在市电正常且应急开关K4闭合时向电池组120充电并向升压电路130供电，也就是说AC-DC电源110分别输出两路电压，其中一路电压用于向电池组120充电，另一路电压用于向升压电路130供电。需要说明的是，AC-DC电源110输出的两路电压需分别满足电池组120能够正常充电、升压电路130能够正常工作的要求，例如AC-DC电源110输出28V电压以向升压电路130供电，同时AC-DC电源110输出12V电压以供电池组120充电。
同时AC-DC电源110在市电正常且应急开关K4断开时停止供电，这时电池组120停止充电，而升压电路130停止运行。因此，AC-DC电源110只有在市电正常且应急开关K4闭合时处于工作状态。
具体的，如图2所示，AC-DC电源110包括保险管F1、桥式整流二极管DB1、电阻R3、电阻R4、电阻R15、电阻R14、芯片U1、极性电容C2、二极管D1、电阻R18、电阻R20、MOS管Q3、电阻R17、电容C12、电阻R19、电容C17、电阻R22、电阻R8、电容C5、二极管D2、极性电容C3、变压器T1、二极管D4、极性电容C8、二极管D3及极性电容C7。
保险管F1的一端连接应急开关K4，保险管F1的另一端与桥式整流二极管DB1的火线交流端口连接。桥式整流二极管DB1的零线交流端口与市电零线端连接，桥式整流二极管DB1的正极分别与电阻R3的一端、电阻R8的一端、电容C5的一端、极性电容C3的正极、变压器T1的初级绕组的第一端口（即1脚）连接。电容C5的另一端分别与二极管D2的负极、电阻R8的另一端连接。二极管D2的正极与变压器T1的初级绕组的第二端口（即2脚）连接。
芯片U1的VCC管脚分别与电阻R4的一端、极性电容C2的正极及二极管D1的负极连接，电阻R4的另一端与电阻R3的另一端连接，二极管D1的正极分别与电阻R15的一端及变压器T1的次级第一绕组的第一端口（即4脚）连接，电阻R15的另一端与电阻R14的一端连接。芯片U1的FB管脚与电阻R15及电阻R14的公共端连接。芯片U1的OUT管脚与电阻R18的一端连接，电阻R18的另一端分别与电阻R20的一端、MOS管Q3的栅极连接，MOS管Q3的漏极连接二极管D2与变压器T1的公共端，MOS管Q3的源极分别与电阻R20的另一端、电阻R19的一端、电阻R22的一端连接。芯片U1的COMP管脚、电阻R17及电容C12依次连接。芯片U1的CS管脚分别与电容C17的一端、电阻R19的另一端连接，电容C17的另一端与电阻R22的另一端共同接地。桥式整流二极管DB1的负极、电阻R14的另一端、芯片U1的GND管脚、极性电容C2的负极、电容C12的另一端、极性电容C3的负极及变压器T1的次级第一绕组的第二端口（即5脚）均接地。
变压器T1的次级第二绕组的第一端口（即6脚）连接二极管D4的正极，二极管D4的负极与极性电容C8的正极连接，且极性电容C8与二极管D4的公共端用于向升压电路130提供供电电压。极性电容C8的负极及变压器T1的次级第二绕组的抽头（即9脚）共同接地。
变压器T1的次级第二绕组的第二端口（即7脚）连接二极管D3的正极，二极管D3的负极与极性电容C7的正极连接，且极性电容C7与二极管D3的公共端用于向电池组120提供充电电压。极性电容C7的负极接地。
在上述AC-DC电源110的具体电路中，当市电正常且应急开关K4闭合时，市电220V通过保险管F1进入桥式整流二极管DB1中进行整流，再通过极性电容C3进行滤波，之后进入变压器T1的初级绕组的第一端口（即1脚），并从变压器T1的初级绕组的第二端口（即2脚）出来，再通过MOS管Q3的漏极、源极后通过电阻R22下地从而使得整个AC-DC电源110形成通路以开始正常工作。其中，芯片U1及其外围电路用于驱动变压器T1。电阻R15和电阻R14构成稳压环，保证AC-DC电源110稳压运行。电阻R3和R4构成启动电路并给极性电容C2充电，当极性电容C2的电压达到12.8V时，芯片U1开始工作。
最终变压器T1产生两路感应电压。第一路感应电压从变压器T1 的次级第二绕组的第一端口（即6脚）和抽头（即9脚）输出，并通过二极管D4和极性电容C8进行整流滤波后，产生AC-DC电源110输出的第一路电压（用于对升压电路130供电，例如28V）。第二路感应电压从变压器T1 的次级第二绕组的第二端口（即7脚）和抽头（即9脚）输出，并通过二极管D3和极性电容C7进行整流滤波后，产生AC-DC电源110输出的第二路电压（用于供电池组120充电，例如12V）。
可以理解的是，AC-DC电源110的具体电路不限于上述一种情况，只要能够实现在市电正常且应急开关K4闭合时向电池组120充电并向升压电路130供电，且在市电正常且应急开关K4断开时停止供电的功能即可，例如其中的滤波电路用其他形式的滤波电路代替。
电池组120，在市电异常时向开关检测电路140及升压电路130供电。由于电池组120在市电正常时通过AC-DC电源110提供的电源进行充电，因此电池组120在市电异常时能够利用储存的能量向开关检测电路140及升压电路130供电。
其中，电池组120在充电时，为了保证充电过程的有效可靠且使得充电电压与电池组120匹配，可在AC-DC电源110与电池组120之间设置一个既能对整个充电过程进行控制又能进行电压转换的充电模块。例如，充电模块将AC-DC电源110输出的12V电压转换为8.4V，并将该8.4V电压输入至电池组120中。
另外，电池组120在市电异常时对开关检测电路140、升压电路130进行供电时，若电池组120的输出电压与开关检测电路140或升压电路130所需的工作电压不匹配时，也可通过设置电压转换模块进行电压转换，以保证开关检测电路140、升压电路130正常工作。
开关检测电路140用于在市电异常且应急开关K4闭合时驱动升压电路130运行，开关检测电路140还用于在市电异常且应急开关K4断开时停止驱动升压电路130。其中，由于在市电异常时，电池组120能够向开关检测电路140供电，因此开关检测电路140具有电源供给，进而能够实现上述控制升压电路130的功能。
具体的，开关检测电路140具备上述功能的具体实现方式为：开关检测电路140通过应急开关K4与电网内阻300相连，即开关检测电路140与应急开关K4、电网内阻300通过市电火线、市电零线相连。其中，电池组120、开关检测电路140、应急开关K4及电网内阻300在应急开关K4闭合时构成回路，而在应急开关K4断开时该回路断开。
同时，开关检测电路140在上述回路形成时驱动升压电路130运行，而开关检测电路140在上述回路断开时停止驱动升压电路130。也就是说，上述回路的状态是由应急开关K4决定的，因此开关检测电路140通过检测上述回路的状态，即能相应根据应急开关K4的闭合或断开来控制升压电路130运行或停止运行。
具体的，开关检测电路140包括相连接的检测单元和驱动单元。其中，检测单元用于在上述回路形成时输出导通信号并将该导通信号传送至驱动单元，且检测单元在上述回路断开时停止运行。驱动单元用于根据上述导通信号驱动升压电路130运行。
如图3所示，检测单元包括：电阻R43、电阻R58、三极管Q2、电阻R41及电阻R47。其中，电阻R43的一端与应急开关K4连接。电阻R41连接于市电零线端与地之间。三极管Q2的发射极与电阻R58的一端共同接入电池组120的供电电压（例如VCC5V），三极管Q2的基极分别与电阻R58的另一端、电阻R43的另一端连接，三极管Q2的集电极与电阻R47连接，且三极管Q2的集电极与电阻R47的公共端与驱动单元连接。电阻R47的另一端接地。
在上述检测单元中，当市电异常且应急开关K4闭合时，电池组120提供的供电电压（即VCC5V）经过电阻R58、电阻R43、应急开关K4、电网内阻300、电阻R41并下地，从而形成回路。因此三极管Q2导通，其集电极输出电压信号，相当于检测单元向驱动单元输入导通信号。当市电异常且应急开关K4断开时，由电池组120提供的供电电压（即VCC5V）、电阻R58、电阻R43、应急开关K4、电网内阻300、电阻R41及地构成的回路断开，从而导致三极管Q2截止，即检测单元停止运行。
驱动单元包括：MCU芯片U7、电阻R44、三极管Q12及电阻R71。其中，MCU芯片U7的第一输入端（即7脚）连接检测单元的输出端，其中，检测单元的输出端即为上述三极管Q2的集电极与电阻R47的公共端。MCU芯片U7的第二输入端（即8脚）接入电池组120的供电电压（即VCC5V），MCU芯片U7的输出端（即2脚）连接电阻R44的一端。三极管Q12的基极连接电阻R44的另一端，三极管Q12的集电极接入电池组120的供电电压（即VCC5V），三极管Q12的发射极连接电阻R71的一端。电阻R71的另一端连接升压电路130的输入端。需要说明的是，上述关于电池组120的供电电压，可通过电压转换器将电池组120的输出电压转换为适于开关检测电路140工作的电压（例如若电池组120的输出电压为8.4V，则利用电压转化器将8.4V电压转换为5V）。
在上述驱动单元中，MCU芯片U7用于检测检测单元输出的信号，一旦发现检测单元输出导通信号（例如MCU芯片U7检测第一输入端的输入电压是否进入已设定的阈值区间，若是，则判定检测单元输出导通信号）， 那么MCU芯片U7即会根据该导通信号输出能够驱动升压电路130的信号（例如MCU芯片U7调整输出电压的大小，以满足升压电路130 的启动电压需求）。之后再经过三极管Q12进行放大，最终通过电阻R71即输出电位为高电位的LED驱动信号，以驱动升压电路130运行。而若检测单元没有输出导通信号，那么在驱动单元中，MCU芯片U7停止输出，三极管Q12截止，这时驱动单元输出的LED驱动信号为低电位，即相当于驱动单元停止驱动升压电路130。
另外，MCU芯片U7还用于检测第二输入端（即8脚）接收电池组120的供电电压是否正常，从而保证整个开关检测电路140能够正常运行。
可以理解的是，开关检测电路140的具体结构并不限于上述一种情况，只要能够实现在市电异常且应急开关K4闭合时驱动升压电路130运行，在市电异常且应急开关K4断开时停止驱动升压电路130的功能即可。例如将上述起放大作用的三极管替换为MOS管。
升压电路130，用于驱动LED灯串并联组150。在本实施例中，升压电路130在市电正常和市电异常均用于驱动LED灯串并联组150，而在两种情况下升压电路130采取的供电电源却并不相同。
具体的，升压电路130包括相连接的电源控制单元及升压单元。电源控制单元用于在市电正常且应急开关K4闭合时将AC-DC电源110作为供电电源，同时电源控制单元还用于在市电异常且应急开关K4闭合时将电池组120作为供电电源。升压单元，用于根据上述供电电源提供适于LED灯串并联组150工作的电压。因此，升压电路130在市电正常时是通过市电来驱动LED灯串并联组150，而在市电异常时通过储能电源（即电池组120）来驱动LED灯串并联组150。
具体的，如图4所示，电源控制单元包括电阻R41、三极管Q12、电阻R42、电阻R56、MOS管Q9、二极管D16、极性电容C29及电感L11。
其中，电阻R41的一端连接开关检测电路140的输出端（即上述电阻R71的另一端），用于接收开关检测电路140输出的LED驱动信号。三极管Q12的集电极与电阻R42的一端连接，三极管Q12的基极与电阻R41的另一端连接，三极管Q12的发射极接地。电阻R42的另一端与电阻R56的一端连接。MOS管Q9的栅极连接电阻R42和电阻R56的公共端，MOS管Q9的漏极与电阻R56的另一端共同接入电池组120的供电电压（例如8.4V），MOS管Q9的源极与二极管D16的正极连接，二极管D16的负极分别与极性电容C29的正极、电感L11的一端连接。极性电容C29的正极与电感L11的公共端还接入AC-DC电源110的供电电压（即AC-DC电源110输出的第一路电压，例如28V）。极性电容C29的另一端接地。电感L11的另一端连接升压单元。
升压单元包括电阻R63、电容C20、稳压二极管ZD24、电阻R48、电压转换器U6、电容C25、电阻R49、电容C26、电阻R55、电容C27、电阻R50、MOS管Q7、电阻R53、电阻R25、二极管D12及极性电容C21。其中，电压转换器U6和MOS管Q7及其外围电路用于共同驱动LED灯串并联组150（例如最终向LED灯串并联组150提供36V电压）。
电阻R63的一端连接MOS管Q9和二极管D16的公共端。电阻R48的一端与电容C25的一端连接。电压转换器U6的第8管脚分别与电阻R63的另一端、电容C20的一端、稳压二极管ZD24的负极及电阻R48的另一端连接，电压转换器U6的第7管脚连接电容C27的一端，电压转换器U6的第6管脚与MOS管Q7的源极连接，电压转换器U6的第5管脚与电阻R50的一端连接，电压转换器U6的第4管脚与电阻R55的一端连接，电压转换器U6的第3管脚与电阻R49的一端连接，电压转换器U6的第2管脚与电阻R48及电容C25的公共端连接。电阻R49的另一端与电容C26的一端连接。电阻R55的另一端连接LED灯串并联组的负极。电容C20的另一端与稳压二极管ZD24的正极共同接地。电容C25的另一端、电容C26的另一端、电压转换器U6的第1管脚及电容C27的另一端均接地。
MOS管Q7的栅极与电阻R50的另一端连接，MOS管Q7的源极还与电阻R53的一端连接，MOS管Q7的漏极与电感L11及二极管D12的公共端连接。电阻R53的另一端与电阻R25的一端共同接地，电阻R25的另一端连接LED灯串并联组150的负极。二极管D12的负极与极性电容C21的正极共同连接LED灯串并联组150的正极，极性电容C21的负极接地。
在上述升压电路130的具体电路中，当AC-DC电源110输出供电电压（即市电正常且应急开关K4闭合时），电源控制单元将AC-DC电源110作为供电电源，那么电源电流经过极性电容C29和电感L11滤波后，再经过MOS管Q7和电阻R53下地，从而使得升压单元导通，之后即可通过升压单元输出驱动信号进而打开LED灯串并联组150。
因此在市电正常时，升压电路130是根据 AC-DC电源110是否工作来控制LED灯串并联组150：若AC-DC电源110正常供电（即市电正常且应急开关K4闭合），则升压电路130驱动LED灯串并联组150，这时LED灯串并联组150打开；若AC-DC电源110停止供电（即市电正常且应急开关K4断开），则升压电路130停止驱动LED灯串并联组150，这时LED灯串并联组150熄灭。
若AC-DC电源110没有输出供电电压，而电阻R41的一端接收的LED驱动信号为高电位（即市电异常且应急开关K4闭合）时，三极管Q12导通（即开关检测电路140驱动升压电路130运行）。那么在MOS管Q9的漏极与电阻R56的另一端接入的电池组120的供电电压这时即为升压电路130的供电电源。这时MOS管Q9导通，电源电流再经二极管D16、经过极性电容C29和电感L11滤波后再经过MOS管Q7和电阻R53下地，同样使得升压单元导通。那么最终即可通过升压单元输出驱动信号进而打开LED灯串并联组150。
因此，在市电异常的情况下，升压电路130是在电池组120供电的基础上并在开关检测电路140的控制下来控制LED灯串并联组150：若开关检测电路140输出的LED驱动信号为高电位（即市电异常且应急开关K4闭合），则升压电路130驱动LED灯串并联组150，这时LED灯串并联组150打开；若开关检测电路140输出的LED驱动信号为低电位（即市电异常且应急开关K4断开），则升压电路130停止驱动LED灯串并联组150，这时LED灯串并联组150熄灭。
可以理解的是，升压电路130的具体结构并不限于上述一种情况，只要能够实现在AC-DC电源110供电时打开LED灯串并联组150、在电池组120供电且在开关检测电路140的驱动下打开LED灯串并联组150的功能即可，例如将滤波电路替换为其他形式。
综上所述，本实施例提供的LED照明应急一体灯控制系统的工作原理如下：
当市电正常且应急开关K4闭合时，AC-DC电源110分别输出两路电压，一路电压用于向升压电路130供电，另一路电压用于对电池组120充电。这时，升压电路130即将AC-DC电源110作为供电电源，并打开LED灯串并联组150。
当市电正常且应急开关K4断开时，AC-DC电源110停止输出电压，那么电池组120停止充电，升压电路130停止运行，LED灯串并联组150熄灭。
当市电异常且应急开关K4闭合时，电池组120向开关检测电路140和升压电路130供电。同时开关检测电路140导通，并驱动升压电路130运行。升压电路130根据电池组120提供的电源驱动LED灯串并联组150，进而打开LED灯串并联组150。
当市电异常且应急开关K4断开时，开关检测电路140停止驱动升压电路130，这时升压电路130停止运行， LED灯串并联组150熄灭。
因此，无论市电正常还是市电异常，本实施例提供的LED照明应急一体灯及控制系统都能够根据应急开关闭合或断开来相应开启或关闭LED灯串并联组，克服了传统应急开关在停电时只能开启LED灯串并联组的问题，从而能够使得LED灯串并联组只在需要供电的情况下点亮。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (18)

  1. 一种LED照明应急一体灯，用于与应急开关连接，所述LED照明应急一体灯包括：
    LED灯串并联组；
    升压电路，用于驱动所述LED灯串并联组；
    开关检测电路，分别与所述应急开关、市电零线端连接；所述开关检测电路用于在市电异常且所述应急开关闭合时驱动所述升压电路运行，所述开关检测电路还用于在市电异常且所述应急开关断开时停止驱动所述升压电路；
    电池组，用于在市电异常时向所述开关检测电路及升压电路供电；
    AC-DC电源，分别与所述应急开关、市电零线端连接；所述AC-DC电源用于在市电正常且所述应急开关闭合时向所述电池组充电并向所述升压电路供电，且所述AC-DC电源还用于在市电正常且应急开关断开时停止供电。
  2. 根据权利要求1所述的LED照明应急一体灯，其特征在于，所述开关检测电路通过应急开关与电网内阻连接；所述电池组、开关检测电路、应急开关、电网内阻在应急开关闭合时构成回路，而在应急开关断开时所述回路断开；
    所述开关检测电路在所述回路形成时驱动所述升压电路运行，且所述开关检测电路在所述回路断开时停止驱动所述升压电路。
  3. 根据权利要求2所述的LED照明应急一体灯，其特征在于，所述开关检测电路包括相连接的检测单元和驱动单元；所述检测单元在所述回路形成时输出导通信号，且所述检测单元在所述回路断开时停止运行；所述驱动单元用于根据所述导通信号驱动所述升压电路运行。
  4. 根据权利要求3所述的LED照明应急一体灯，其特征在于，所述检测单元包括：电阻R43、电阻R58、三极管Q2、电阻R41及电阻R47；
    所述电阻R43的一端与应急开关连接；所述电阻R41连接于市电零线端与地之间；所述三极管Q2的发射极与电阻R58的一端共同接入所述电池组的供电电压，所述三极管Q2的基极分别与电阻R58的另一端、电阻R43的另一端连接，所述三极管Q2的集电极与电阻R47连接，且所述三极管Q2的集电极与电阻R47的公共端与所述驱动单元连接，所述电阻R47的另一端接地。
  5. 根据权利要求3所述的LED照明应急一体灯，其特征在于，所述驱动单元包括MCU芯片U7、电阻R44、三极管Q12及电阻R71；
    所述MCU芯片U7的第一输入端连接所述检测单元的输出端，所述MCU芯片U7的第二输入端接入所述电池组的供电电压，所述MCU芯片U7的输出端连接所述电阻R44的一端；所述三极管Q12的基极连接所述电阻R44的另一端，所述三极管Q12的集电极接入所述电池组的供电电压，所述三极管Q12的发射极连接所述电阻R71的一端；所述电阻R71的另一端连接所述升压电路的输入端。
  6. 根据权利要求2所述的LED照明应急一体灯，其特征在于，所述升压电路包括相连接的电源控制单元及升压单元；
    所述电源控制单元在市电正常且应急开关闭合时将所述AC-DC电源作为供电电源，所述电源控制单元还用于在市电异常且应急开关闭合时将所述电池组作为供电电源；所述升压单元，用于根据所述供电电源提供适于所述LED灯串并联组工作的电压。
  7. 根据权利要求6所述的LED照明应急一体灯，其特征在于，所述电源控制单元包括电阻R41、三极管Q12、电阻R42、电阻R56、MOS管Q9、二极管D16、极性电容C29及电感L11；
    所述电阻R41的一端连接所述开关检测电路的输出端；所述三极管Q12的集电极与电阻R42的一端连接，所述三极管Q12的基极与电阻R41的另一端连接，所述三极管Q12的发射极接地；所述电阻R42的另一端与电阻R56的一端连接；所述MOS管Q9的栅极连接所述电阻R42和电阻R56的公共端，所述MOS管Q9的漏极与电阻R56的另一端共同接入所述电池组的供电电压，所述MOS管Q9的源极与所述二极管D16的正极连接；所述二极管D16的负极分别与极性电容C29的正极、电感L11的一端连接，所述极性电容C29与电感L11的公共端还接入AC-DC电源的供电电压；所述极性电容C29的另一端接地；所述电感L11的另一端连接所述升压单元。
  8. 根据权利要求7所述的LED照明应急一体灯，其特征在于，所述升压单元包括电阻R63、电容C20、稳压二极管ZD24、电阻R48、电压转换器U6、电容C25、电阻R49、电容C26、电阻R55、电容C27、电阻R50、MOS管Q7、电阻R53、电阻R25、二极管D12及极性电容C21；
    所述电阻R63的一端连接所述MOS管Q9和二极管D16的公共端；所述电阻R48的一端与电容C25的一端连接；所述电压转换器U6的第8管脚分别与电阻R63的另一端、电容C20的一端、稳压二极管ZD24的负极及电阻R48的另一端连接，所述电压转换器U6的第7管脚连接电容C27的一端，所述电压转换器U6的第6管脚与MOS管Q7的源极连接，所述电压转换器U6的第5管脚与电阻R50的一端连接，所述电压转换器U6的第4管脚与电阻R55的一端连接，所述电压转换器U6的第3管脚与电阻R49的一端连接，所述电压转换器U6的第2管脚与电阻R48及电容C25的公共端连接；所述电阻R49的另一端与电容C26的一端连接；所述电阻R55的另一端连接LED灯串并联组的负极；所述电容C20的另一端与稳压二极管ZD24的正极共同接地；所述电容C25的另一端、电容C26的另一端、电压转换器U6的第1管脚及电容C27的另一端均接地；
    所述MOS管Q7的栅极与所述电阻R50的另一端连接，所述MOS管Q7的源极还与所述电阻R53的一端连接，所述MOS管Q7的漏极与所述电感L11及二极管D12的公共端连接；所述电阻R53的另一端与电阻R25的一端共同接地，所述电阻R25的另一端连接LED灯串并联组的负极；所述二极管D12的负极与极性电容C21的正极共同连接LED灯串并联组的正极，所述极性电容C21的负极接地。
  9. 根据权利要求2所述的LED照明应急一体灯，其特征在于，所述AC-DC电源包括保险管F1、桥式整流二极管DB1、电阻R3、电阻R4、电阻R15、电阻R14、芯片U1、极性电容C2、二极管D1、电阻R18、电阻R20、MOS管Q3、电阻R17、电容C12、电阻R19、电容C17、电阻R22、电阻R8、电容C5、二极管D2、极性电容C3、变压器T1、二极管D4、极性电容C8、二极管D3及极性电容C7；
    所述保险管F1的一端连接应急开关，所述保险管F1的另一端与桥式整流二极管DB1的火线交流端口连接；所述桥式整流二极管DB1的零线交流端口与市电零线端连接，所述桥式整流二极管DB1的正极分别与电阻R3的一端、电阻R8的一端、电容C5的一端、极性电容C3的正极、变压器T1的初级绕组的第一端口连接；所述电容C5的另一端分别与二极管D2的负极、电阻R8的另一端连接；所述二极管D2的正极与变压器T1的初级绕组的第二端口连接；
    所述芯片U1的VCC管脚分别与电阻R4的一端、极性电容C2的正极及二极管D1的负极连接，所述电阻R4的另一端与电阻R3的另一端连接，所述二极管D1的正极分别与电阻R15的一端及变压器T1的次级第一绕组的第一端口连接，所述电阻R15的另一端与电阻R14的一端连接；所述芯片U1的FB管脚与电阻R15及电阻R14的公共端连接；所述芯片U1的OUT管脚与电阻R18的一端连接，所述电阻R18的另一端分别与电阻R20的一端、MOS管Q3的栅极连接，所述MOS管Q3的漏极连接所述二极管D2与变压器T1的公共端，所述MOS管Q3的源极分别与所述电阻R20的另一端、电阻R19的一端、电阻R22的一端连接；所述芯片U1的COMP管脚、电阻R17及电容C12依次连接；所述芯片U1的CS管脚分别与电容C17的一端、电阻R19的另一端连接，所述电容C17的另一端与电阻R22的另一端共同接地；所述桥式整流二极管DB1的负极、电阻R14的另一端、芯片U1的GND管脚、极性电容C2的负极、电容C12的另一端、极性电容C3的负极及变压器T1的次级第一绕组的第二端口均接地；
    所述变压器T1的次级第二绕组的第一端口连接二极管D4的正极，所述二极管D4的负极与极性电容C8的正极连接，且所述极性电容C8与二极管D4的公共端用于向升压电路提供供电电压；所述极性电容C8的负极及变压器T1的次级第二绕组的抽头共同接地；
    所述变压器T1的次级第二绕组的第二端口连接二极管D3的正极，所述二极管D3的负极与极性电容C7的正极连接，且所述极性电容C7与二极管D3的公共端用于向电池组提供充电电压；所述极性电容C7的负极接地。
  10. 一种LED照明应急一体灯控制系统，包括：
    LED照明应急一体灯；及
    应急开关，所述应急开关连接于市电火线端与所述LED照明应急一体灯之间；
    其中，所述LED照明应急一体灯包括：
    LED灯串并联组；
    升压电路，用于驱动所述LED灯串并联组；
    开关检测电路，分别与所述应急开关、市电零线端连接；所述开关检测电路用于在市电异常且所述应急开关闭合时驱动所述升压电路运行，所述开关检测电路还用于在市电异常且所述应急开关断开时停止驱动所述升压电路；
    电池组，用于在市电异常时向所述开关检测电路及升压电路供电；
    AC-DC电源，分别与所述应急开关、市电零线端连接；所述AC-DC电源用于在市电正常且所述应急开关闭合时向所述电池组充电并向所述升压电路供电，且所述AC-DC电源还用于在市电正常且应急开关断开时停止供电。
  11. 根据权利要求10所述的LED照明应急一体灯控制系统，其特征在于，所述开关检测电路通过应急开关与电网内阻连接；所述电池组、开关检测电路、应急开关、电网内阻在应急开关闭合时构成回路，而在应急开关断开时所述回路断开；
    所述开关检测电路在所述回路形成时驱动所述升压电路运行，且所述开关检测电路在所述回路断开时停止驱动所述升压电路。
  12. 根据权利要求11所述的LED照明应急一体灯控制系统，其特征在于，所述开关检测电路包括相连接的检测单元和驱动单元；所述检测单元在所述回路形成时输出导通信号，且所述检测单元在所述回路断开时停止运行；所述驱动单元用于根据所述导通信号驱动所述升压电路运行。
  13. 根据权利要求12所述的LED照明应急一体灯控制系统，其特征在于，所述检测单元包括：电阻R43、电阻R58、三极管Q2、电阻R41及电阻R47；
    所述电阻R43的一端与应急开关连接；所述电阻R41连接于市电零线端与地之间；所述三极管Q2的发射极与电阻R58的一端共同接入所述电池组的供电电压，所述三极管Q2的基极分别与电阻R58的另一端、电阻R43的另一端连接，所述三极管Q2的集电极与电阻R47连接，且所述三极管Q2的集电极与电阻R47的公共端与所述驱动单元连接，所述电阻R47的另一端接地。
  14. 根据权利要求12所述的LED照明应急一体灯控制系统，其特征在于，所述驱动单元包括MCU芯片U7、电阻R44、三极管Q12及电阻R71；
    所述MCU芯片U7的第一输入端连接所述检测单元的输出端，所述MCU芯片U7的第二输入端接入所述电池组的供电电压，所述MCU芯片U7的输出端连接所述电阻R44的一端；所述三极管Q12的基极连接所述电阻R44的另一端，所述三极管Q12的集电极接入所述电池组的供电电压，所述三极管Q12的发射极连接所述电阻R71的一端；所述电阻R71的另一端连接所述升压电路的输入端。
  15. 根据权利要求11所述的LED照明应急一体灯控制系统，其特征在于，所述升压电路包括相连接的电源控制单元及升压单元；
    所述电源控制单元在市电正常且应急开关闭合时将所述AC-DC电源作为供电电源，所述电源控制单元还用于在市电异常且应急开关闭合时将所述电池组作为供电电源；所述升压单元，用于根据所述供电电源提供适于所述LED灯串并联组工作的电压。
  16. 根据权利要求15所述的LED照明应急一体灯控制系统，其特征在于，所述电源控制单元包括电阻R41、三极管Q12、电阻R42、电阻R56、MOS管Q9、二极管D16、极性电容C29及电感L11；
    所述电阻R41的一端连接所述开关检测电路的输出端；所述三极管Q12的集电极与电阻R42的一端连接，所述三极管Q12的基极与电阻R41的另一端连接，所述三极管Q12的发射极接地；所述电阻R42的另一端与电阻R56的一端连接；所述MOS管Q9的栅极连接所述电阻R42和电阻R56的公共端，所述MOS管Q9的漏极与电阻R56的另一端共同接入所述电池组的供电电压，所述MOS管Q9的源极与所述二极管D16的正极连接；所述二极管D16的负极分别与极性电容C29的正极、电感L11的一端连接，所述极性电容C29与电感L11的公共端还接入AC-DC电源的供电电压；所述极性电容C29的另一端接地；所述电感L11的另一端连接所述升压单元。
  17. 根据权利要求16所述的LED照明应急一体灯控制系统，其特征在于，所述升压单元包括电阻R63、电容C20、稳压二极管ZD24、电阻R48、电压转换器U6、电容C25、电阻R49、电容C26、电阻R55、电容C27、电阻R50、MOS管Q7、电阻R53、电阻R25、二极管D12及极性电容C21；
    所述电阻R63的一端连接所述MOS管Q9和二极管D16的公共端；所述电阻R48的一端与电容C25的一端连接；所述电压转换器U6的第8管脚分别与电阻R63的另一端、电容C20的一端、稳压二极管ZD24的负极及电阻R48的另一端连接，所述电压转换器U6的第7管脚连接电容C27的一端，所述电压转换器U6的第6管脚与MOS管Q7的源极连接，所述电压转换器U6的第5管脚与电阻R50的一端连接，所述电压转换器U6的第4管脚与电阻R55的一端连接，所述电压转换器U6的第3管脚与电阻R49的一端连接，所述电压转换器U6的第2管脚与电阻R48及电容C25的公共端连接；所述电阻R49的另一端与电容C26的一端连接；所述电阻R55的另一端连接LED灯串并联组的负极；所述电容C20的另一端与稳压二极管ZD24的正极共同接地；所述电容C25的另一端、电容C26的另一端、电压转换器U6的第1管脚及电容C27的另一端均接地；
    所述MOS管Q7的栅极与所述电阻R50的另一端连接，所述MOS管Q7的源极还与所述电阻R53的一端连接，所述MOS管Q7的漏极与所述电感L11及二极管D12的公共端连接；所述电阻R53的另一端与电阻R25的一端共同接地，所述电阻R25的另一端连接LED灯串并联组的负极；所述二极管D12的负极与极性电容C21的正极共同连接LED灯串并联组的正极，所述极性电容C21的负极接地。
  18. 根据权利要求11所述的LED照明应急一体灯控制系统，其特征在于，所述AC-DC电源包括保险管F1、桥式整流二极管DB1、电阻R3、电阻R4、电阻R15、电阻R14、芯片U1、极性电容C2、二极管D1、电阻R18、电阻R20、MOS管Q3、电阻R17、电容C12、电阻R19、电容C17、电阻R22、电阻R8、电容C5、二极管D2、极性电容C3、变压器T1、二极管D4、极性电容C8、二极管D3及极性电容C7；
    所述保险管F1的一端连接应急开关，所述保险管F1的另一端与桥式整流二极管DB1的火线交流端口连接；所述桥式整流二极管DB1的零线交流端口与市电零线端连接，所述桥式整流二极管DB1的正极分别与电阻R3的一端、电阻R8的一端、电容C5的一端、极性电容C3的正极、变压器T1的初级绕组的第一端口连接；所述电容C5的另一端分别与二极管D2的负极、电阻R8的另一端连接；所述二极管D2的正极与变压器T1的初级绕组的第二端口连接；
    所述芯片U1的VCC管脚分别与电阻R4的一端、极性电容C2的正极及二极管D1的负极连接，所述电阻R4的另一端与电阻R3的另一端连接，所述二极管D1的正极分别与电阻R15的一端及变压器T1的次级第一绕组的第一端口连接，所述电阻R15的另一端与电阻R14的一端连接；所述芯片U1的FB管脚与电阻R15及电阻R14的公共端连接；所述芯片U1的OUT管脚与电阻R18的一端连接，所述电阻R18的另一端分别与电阻R20的一端、MOS管Q3的栅极连接，所述MOS管Q3的漏极连接所述二极管D2与变压器T1的公共端，所述MOS管Q3的源极分别与所述电阻R20的另一端、电阻R19的一端、电阻R22的一端连接；所述芯片U1的COMP管脚、电阻R17及电容C12依次连接；所述芯片U1的CS管脚分别与电容C17的一端、电阻R19的另一端连接，所述电容C17的另一端与电阻R22的另一端共同接地；所述桥式整流二极管DB1的负极、电阻R14的另一端、芯片U1的GND管脚、极性电容C2的负极、电容C12的另一端、极性电容C3的负极及变压器T1的次级第一绕组的第二端口均接地；
    所述变压器T1的次级第二绕组的第一端口连接二极管D4的正极，所述二极管D4的负极与极性电容C8的正极连接，且所述极性电容C8与二极管D4的公共端用于向升压电路提供供电电压；所述极性电容C8的负极及变压器T1的次级第二绕组的抽头共同接地；
    所述变压器T1的次级第二绕组的第二端口连接二极管D3的正极，所述二极管D3的负极与极性电容C7的正极连接，且所述极性电容C7与二极管D3的公共端用于向电池组提供充电电压；所述极性电容C7的负极接地。
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CN108991888A (zh) * 2018-10-08 2018-12-14 聂小涵 一种多功能杯
CN109246892A (zh) * 2018-09-30 2019-01-18 惠州三华工业有限公司 线性稳压电路及稳压电源系统
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