WO2013063761A1

WO2013063761A1 - Emergency lamp circuit and system

Info

Publication number: WO2013063761A1
Application number: PCT/CN2011/081635
Authority: WO
Inventors: 刘益全
Original assignee: 深圳市讯宇创科技有限公司
Priority date: 2011-11-01
Filing date: 2011-11-01
Publication date: 2013-05-10

Abstract

An emergency lamp circuit, comprising an LED lamp board module (5), a regulation and management module (2), a control module (4), a cell protection module (3) and a power module (1); the control module (4) controls the operations of emergency power supply, time delay, standby and timing in case of a power failure; the regulation and management module (2) is used to supply stable and controlled voltage for the control module (4) when an external AC supplies power normally; the cell protection module (3) protects an externally connected cell against over-charging, over-discharging and excessive current; and the power module (1) is used to convert the external AC into DC required for the emergency lamp circuit. Also disclosed is an emergency lighting system, comprising an emergency lamp circuit, a cell and a setup panel. The emergency lamp circuit has a long-time standby function, can promptly respond to power failure and at the same time protect the cell, thus extending the service life of the cell.

Description

Emergency light circuit and system

The invention relates to the field of application of electronic technology, in particular to an emergency light circuit and an emergency light system. Background technique

Emergency light is the general name of the lamps used for emergency lighting. The emergency lighting system mainly includes emergency lighting, emergency exit signs and indicator lights. It is a device that guides trapped people or staff to leave safely after normal lighting cuts off the power. In daily life, existing emergency lights are difficult to meet the needs of the public.

The emergency lighting system used in China is mainly controlled by its own power supply. The normal power supply is connected to the normal lighting power supply circuit. The emergency light battery is charged normally. When the normal power supply is cut off, the standby power supply is automatically supplied. This type of emergency light There are a large number of electronic components such as transformer, voltage regulator, charging, inverter, battery, etc. The battery needs to be charged and discharged during use, maintenance and fault detection.

In people's daily life, if there is a sudden power outage, an emergency lighting system that can be self-starting is needed, and in the absence of normal power supply lighting, evacuation, safety, or continued operation of the lights.

In the prior art, the emergency lighting will be activated immediately in the event of an emergency, so that people cannot quickly distinguish between the emergency lighting situation and the normal lighting situation. In some specific occasions, the timely operation after the power failure may be severe. s consequence. Summary of the invention

The technical problem mainly solved by the present invention is to provide an emergency lighting circuit and an emergency lighting, which can control the working time of emergency lighting, and the technology can ensure that the emergency lighting system works under a stable voltage to prevent battery damage. To extend the life of the battery. In order to solve the above technical problem, a technical solution adopted by the present invention is: an emergency light circuit, the circuit comprising an LED light board module, an adjustment management module, a control module, and a battery protection a module and a power module; the power module is configured to convert an external alternating current into a direct current power required by the emergency light circuit; the adjustment management module is connected to the control module, and the adjustment management module is used for external connection Providing a stable control voltage for the control module when the AC power is normally supplied; the battery protection module has an external battery connection end and a power output end, the power output end is connected to the control module, and the battery protection module is used for external AC power Providing charging protection for the external battery during normal power supply and outputting the voltage of the external battery to the external output terminal when the power is off; the control module is connected to the LED light board module for providing the LED light board module Operating Voltage.

The control module includes a first processor, a first capacitor and a first transistor, a first resistor, and a button; the first processor includes first to fifth ports, and the first port is connected to the An output end of the battery protection module; one end of the first capacitor is connected to the first port of the first processor, and the other end of the first capacitor is connected to the fifth port of the first processor; the second port of the first processor is connected to The output end of the adjustment management module, the third port is connected to the ground after being connected to the button, and the fourth port is connected to the base of the first triode via the first resistor; the emitter of the first triode is connected to the first processor The first port is connected to the LED light panel module.

The adjustment management module includes a protection circuit, a voltage stabilization circuit, a sampling circuit, a control circuit, and a first filter circuit; an input end of the protection circuit is connected to an output end of the power module, and an output end of the protection circuit is connected to the An output end of the voltage stabilizing circuit is connected to an input end of the first filter circuit, an output end of the first filter circuit is connected to a sampling end of the sampling circuit, and an output end of the sampling circuit is The protection circuit includes: a second capacitor and a second resistor, wherein the capacitor is a ceramic capacitor, and a positive pole of the capacitor is connected to one end of the second resistor, and a cathode of the capacitor is Grounding, the other end of the second resistor is connected to the input end of the voltage stabilizing circuit; secondly, the voltage stabilizing circuit includes a second triode and a thyristor, and a collector of the second triode is connected to a positive pole of the second capacitor, The base is connected to the cathode of the thyristor, the emitter is connected to the first port of the first processor of the control circuit; the anode of the thyristor is grounded; The sampling circuit includes a third resistor and a fourth resistor, one end of the third resistor is connected to the emitter of the second transistor, and the other end of the third resistor is grounded via the fourth resistor; again, the first filter circuit includes Third capacitor One end of the third capacitor is connected to the cathode of the second triode thyristor, and the other end of the third capacitor is connected to the gate level of the thyristor.

The adjustment management module further includes a red-green indicating circuit, where the red-green indicating circuit includes an indicator circuit, a current limiting circuit, a second triode, a third triode, and fifth to seventh resistors; One end of the fifth resistor is connected to the emitter of the third transistor, and the other end of the fifth resistor is connected to the green control end of the indicator circuit, and the input end of the current limiting circuit is connected to the emitter of the third transistor. The output end is connected to the base of the third triode through the sixth resistor, and the collector of the third triode is connected to the seventh resistor and then connected to the red control end of the indicator circuit.

Wherein, the first to third transistors are low-conduction varistor transistors.

The battery protection module includes a second processor, a third processor, and a second filter circuit. Specifically, the second processor includes first to fourth ports, and the third processor includes first and second a third port of the second processor is connected to the first port of the third processor, a fourth port of the second processor is connected to the second port of the third processor; and the second port of the second processor is grounded; The input end of the filter circuit is connected to the battery connection end, and the output end of the second filter circuit is connected to the first port of the second processor.

The second filter circuit includes an eighth resistor and a fourth capacitor; one end of the eighth resistor is connected to the battery connection end, and the other end is connected to the fourth capacitor and grounded; the common connection of the eighth resistor and the fourth capacitor is The first port of the second processor.

Further, the third processor includes two sets of MOS tubes.

The power module includes a fuse, a current conversion circuit, a rectifier circuit, a storage circuit, and a current limiting circuit; one end of the fuse is connected to the mains, and the other end is connected to the input end of the current conversion circuit, and the output of the current conversion circuit The end is connected to the input end of the energy storage circuit, the output end of the energy storage circuit is connected to the input end of the rectifier circuit, the output end of the rectifier circuit is connected to the input end of the current limiting circuit, and the output end of the current limiting circuit is connected to the input end of the regulation management module The rectifier circuit includes a first diode, a positive pole of the first diode is connected to an input end of the rectifier circuit, and a negative pole is connected to an output end of the rectifier circuit; the current limiting circuit includes a ninth resistor, and one end of the ninth resistor is connected The output end of the rectifier circuit, and the other end of the ninth resistor is connected to the output end of the power module.

The technical solution of the present invention has the advantages that it is different from the prior art LED emergency lighting circuit, the defect that the battery is vulnerable, the shortcoming of the emergency lighting reaction, and the technology of the present invention. The control module controls the operation of the LED light panel module, and when the utility power is disconnected, the emergency lighting reaction can be immediately performed as needed, and the battery protection module can protect the battery, thereby prolonging the service life of the battery. When the utility power is normally supplied, the control module controls the LED light board module to be in a normally-off state; when the commercial power is disconnected, the emergency lighting circuit is powered by an external battery, and the LED light board module functions as an illumination.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide an emergency light system, which applies the emergency light circuit, further includes a battery and a setting panel; the setting panel includes a timing signal output end, and the control module a timing signal input end; the timing signal output end of the setting panel is connected to a timing signal input end of the emergency light circuit control module, wherein the setting panel is configured to set a working time, including a delay time and a timing time; For a rechargeable battery, the battery is connected to a battery connection end of the battery protection circuit.

The beneficial effect of the technical solution is that the emergency light system is applied, and the emergency light should respond immediately when the power is turned off, and the emergency lighting is used. In addition, the system application setting panel can flexibly set the working time of emergency lighting according to people's needs, avoiding waste of electric energy, etc. The emergency lighting system is simple and reliable, and is widely used in occasions requiring lighting when power is off. DRAWINGS

1 is a block diagram showing the structure of an emergency lighting circuit according to an embodiment of the present invention;

2 is a structural diagram of an emergency lighting system according to an embodiment of the present invention;

3 is a schematic diagram of an adjustment management module of an emergency lighting circuit according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a control module of an emergency lighting circuit according to an embodiment of the present invention; and FIG. 5 is a battery protection module of an emergency lighting circuit according to an embodiment of the present invention; FIG. 6 is a schematic diagram of a power module of an emergency lighting circuit according to an embodiment of the present invention.

detailed description

The detailed description of the technical contents, structural features, objects, and effects of the present invention will be described in detail below with reference to the embodiments. Referring to FIG. 1 , a structural block diagram of an emergency lighting circuit according to an embodiment of the present invention, an emergency lighting circuit includes an LED light board module, an adjustment management module, a control module, a battery protection module, and a power module;

The control module is connected to the LED light panel module through N3 for providing an operating voltage for the LED light panel module. Specifically, the control module includes a first processor, a first capacitor and a first transistor, a first resistor, and a button; the first processor includes first to fifth ports, and the first port is connected to the battery An output end of the protection module; one end of the first capacitor is connected to the first port of the first processor, and the other end of the first capacitor is connected to the fifth port of the first processor; the second port of the first processor is connected to the The output end of the adjustment management module, the third port is connected to the ground after being connected to the button, and the fourth port is connected to the base of the first triode via the first resistor; the emitter of the first triode is connected to the first processor A first port, a collector connected to the LED light panel module. Specifically, the control module controls power failure emergency, standby, delay, and scheduled working time. The power failure emergency is that when the utility power is disconnected, the emergency lighting system can immediately start the work, the reaction time is short, and emergency lighting is realized. The standby is in the standby state, after the mains is disconnected, and the LED light panel module is turned off, the emergency light circuit is still in the standby state. In the large factory production workshop, after the nighttime workers disconnect the mains, they are first illuminated by emergency lights. Normally, the emergency lights are set to emergency lighting for 3-5 minutes to provide lighting for the staff to leave the work site. However, in some cases, the staff may have left the work site within 3-5 minutes for some reason. At this time, it is necessary to turn on the emergency light. If the emergency light has no standby function, it will take some time to turn on the emergency light. After the emergency light has the standby function, it can immediately restart the emergency light to provide immediate illumination. The delay is able to change the length of emergency lighting by arbitrarily depending on the demand. The timing work can freely set the time when the emergency lighting is turned on, and the time of disconnection. This type of functionality is implemented through the first processor control inside the control module. Among them, the standby mode needs to be implemented by buttons, and the timing and delay can be changed by artificially setting the emergency lighting working time.

The adjustment management module is connected to the control module through N1. Since the commercial power supply can only provide DC power after passing through the power module, the DC power supply is not a stable power supply, and the adjustment management module is used for external AC power. Providing a stable control voltage for the control module when the power is supplied; specifically, the adjustment management module includes a protection circuit, a voltage stabilization circuit, and a a sampling circuit, a control circuit and a first filter circuit; an input end of the protection circuit is connected to an output end of the power module, an output end of the protection circuit is connected to an input end of the voltage stabilization circuit, and an output end of the voltage stabilization circuit is connected An output end of the first filter circuit is connected to an output end of the sampling circuit, and an output end of the sampling circuit is an output end of the adjustment management module; specifically, the protection The circuit includes a second capacitor, a second resistor, the capacitor is a ceramic capacitor, a positive pole of the capacitor is connected to one end of the second resistor, a cathode of the capacitor is grounded, and the other end of the second resistor is connected to an input of the voltage regulator circuit Secondly, the voltage stabilizing circuit includes a second triode and a thyristor. Here, the thyristor is a cylinder of a thyristor, which may also be called a thyristor, and the thyristor is a PNPN four-layer semiconductor structure. It has three poles: the anode. Cathode and gate; Thyristor has the characteristics of silicon rectifying device, can work under high voltage and high current conditions, and its working process can be controlled and widely used for controlled rectification, AC voltage regulation, non-contact electronic switch, inverter And electronic circuits such as frequency conversion. The collector of the second transistor of the voltage stabilizing circuit is connected to the anode of the second capacitor, the base is connected to the cathode of the thyristor, the emitter is connected to the first port of the first processor of the control circuit; the anode of the thyristor is grounded The sampling circuit includes a third resistor and a fourth resistor, one end of the third resistor is connected to the emitter of the second transistor, and the other end of the third resistor is grounded via the fourth resistor; The first filter circuit includes a third capacitor, one end of the third capacitor is connected to the cathode of the second triode thyristor, and the other end of the third capacitor is connected to the gate level of the thyristor. Of course, the circuit in this example is only a specific embodiment. The main function of the adjustment management module is to convert the DC power provided by the power module into a DC power with a stable voltage. The person skilled in the art can use various methods according to the function, for example. Only the most basic voltage regulator circuit and filter circuit constitute a regulation management module.

In a progressive solution, the adjustment management module further includes a red-green indicating circuit, where the red-green indicating circuit includes an indicator circuit, a current limiting circuit, a second triode, a third triode, and fifth to fifth a seventh resistor; one end of the fifth resistor is connected to the emitter of the third transistor, and the other end of the fifth resistor is connected to the green control end of the indicator circuit, and the input end of the current limiting circuit is connected to the third three pole The emitter of the tube, the output end is connected to the base of the third triode via the sixth resistor, and the collector of the third triode is connected to the seventh resistor and then the red light control of the indicator circuit In a preferred embodiment, the first to third transistors are low conduction varistor transistors.

The battery protection module has an external battery connection end and a power output terminal N5. The power output terminal N5 is connected to the control module. The battery protection module is configured to provide charging protection for the external battery when the external AC power supply is normal. When the power is off, the voltage of the external battery is output to the outside through the power output terminal. When the utility power is normally supplied, the power module supplies power to the external battery, and the external battery is charged. After the battery protection module is applied, the battery can be continuously detected to prevent the battery from being overcharged. , over discharge and excessive current. The battery protection module of the prior art has the function, but the same function can be implemented by different technical solutions. The battery protection module in the technical solution includes a second processor, a third processor and a second filter circuit; Specifically, the second processor includes first to fourth ports, and the third processor includes first and second ports; the third port of the second processor is connected to the first port of the third processor, and second The fourth port of the processor is connected to the second port of the third processor; the second port of the second processor is grounded; the input end of the filter circuit is connected to the battery connection end, and the output end of the second filter circuit is connected to the second process The first port of the device. Further, the second filter circuit includes an eighth resistor and a fourth capacitor; one end of the eighth resistor is connected to the battery connection end, and the other end is connected to the fourth capacitor and grounded; the common junction of the eighth resistor and the fourth capacitor Connecting to the first port of the second processor. Further, the third processor includes two sets of MOS tubes.

The power module is configured to convert the external alternating current into a direct current power required by the emergency light circuit, and transmit the current to the adjustment management module through the N4 port. Specifically, the power module includes a fuse, a current conversion circuit, a rectifier circuit, a storage circuit, and a current limiting circuit; one end of the fuse is connected to the mains, and the other end is connected to the input end of the current conversion circuit, and the output of the current conversion circuit The end is connected to the input end of the energy storage circuit, the output end of the energy storage circuit is connected to the input end of the rectifier circuit, the output end of the rectifier circuit is connected to the input end of the current limiting circuit, and the output end of the current limiting circuit is connected to the input end of the regulation management module The rectifier circuit includes a first diode, a positive pole of the first diode is connected to an input end of the rectifier circuit, and a negative pole is connected to an output end of the rectifier circuit; the current limiting circuit includes a ninth resistor, and one end of the ninth resistor is connected The output end of the rectifier circuit, and the other end of the ninth resistor is connected to the output end of the power module. The power module realizes the function of AC to DC. There are many implementations in the prior art. Only one of them is listed as one of the technical solutions. In a preferred embodiment, the power module is capable of providing a constant operating voltage to the entire circuit. Embodiments of the present invention will be described in detail below with reference to specific circuit diagrams.

Referring to FIG. 3, the control module of the embodiment of the present invention includes a first processor U6, a first capacitor C8, and a first transistor Q2, a first resistor R20, and a button Sl.

Specifically, the first processor U6 includes first to fifth ports, the first port is a power connection end, and the first port VDD is connected to an output end of the battery protection module; a first port VDD of the processor U6, the other end of the first capacitor is connected to the fifth port PTB2 of the first processor U6; the second port PTB3 of the first processor U6 is connected to the output of the adjustment management module The third port PTB2 of the first processor U6 is connected to the ground after the button S1 is connected; the fourth port PTB1 is connected to the base of the first transistor Q2 via the first resistor R20, and the emitter of the first transistor Q2 is connected. The first port VDD of the first processor U6 is connected to the LED light panel module. The LED panel module thus provides control signals. The control module can control the power failure emergency, standby, delay and timing working time. When the lighting is normal, the first processor U6 is reset, and the emergency lighting circuit does not work.

Referring to FIG. 4, the adjustment management module according to the embodiment of the present invention includes a protection circuit, a voltage stabilization circuit, a sampling circuit, a control circuit, and a first filter circuit; an input end of the protection circuit is connected to an output end of the power module, An output end of the protection circuit is connected to an input end of the voltage stabilizing circuit, an output end of the voltage stabilizing circuit is connected to an input end of the first filter circuit, and an output end of the first filter circuit is connected to a sampling end of the sampling circuit, The output end of the sampling circuit is a first output end of the adjustment management module.

Specifically, the protection circuit includes a second capacitor C16 and a second resistor R15. The capacitor is a ceramic capacitor. The anode of the capacitor is connected to one end of the second resistor R15. The cathode of the capacitor is grounded, and the second resistor R15. The other end is connected to the input end of the voltage stabilizing circuit; the voltage stabilizing circuit includes a second transistor Q1 and a thyristor TL1, and the collector of the second transistor Q1 is connected to the anode of the second capacitor C16, and the base is connected The cathode of the thyristor TL1, the emitter is connected to the first port of the first processor U6 of the control circuit; the anode of the thyristor TL1 is grounded.

Specifically, the sampling circuit includes a third resistor R16 and a fourth resistor R17, one end of the third resistor R16 is connected to the emitter of the second transistor Q1, and the other end of the third resistor Grounded after the fourth resistor R17. The first filter circuit includes a third capacitor C17, one end of the third capacitor C17 is connected to the cathode of the thyristor TL1, and the other end of the third capacitor is connected to the gate of the thyristor TL1.

In a preferred embodiment, the adjustment management module further includes a red and green indicating circuit, where the red and green indicating circuit includes an indicator circuit, a current limiting circuit, a second transistor Q1, a third transistor Q3, and a a fifth to seventh resistor; one end of the fifth resistor R3 is connected to the emitter of the third transistor Q3, and the other end is connected to the green light control end of the indicator circuit, and the input end of the current limiting circuit is connected to the third third The emitter of the transistor Q3 is connected to the base of the third transistor Q3 via the sixth resistor R24, and the collector of the third transistor Q3 is connected to the seventh resistor R25 and then connected to the red light control of the indicator circuit. end.

The indicator circuit, when the utility power is connected, adjusts the management module to work, and the base current of the third transistor Q3 passes through the sixth resistor R24 and is grounded through the protection circuit, and the third transistor Q3 is turned on, the current After passing through the third transistor Q3 and the seventh resistor R25, the red indicator light is lit, indicating that the circuit is in a charging state. When the battery is full, the charging protection module recognizes that the battery is full and stops working, and the third transistor Q3 does not When the ground current is stopped, the current will flow through the fifth resistor R23 and the green indicator light will be on, indicating that the battery is full.

In a progressive solution, the first transistor Q2, the second transistor Q1, and the third transistor Q3 are low conduction band-stop transistors, and the transistors are one or two resistors. It is connected to the transistor and is assembled as a medium-speed switch. It can be regarded as an electronic switch in the circuit. When the saturation is turned on, its tube voltage drop is small. Applying this technical solution, the emergency lighting system can be operated under a stable voltage environment.

Referring to FIG. 5, the battery protection module includes a second processor U4, a third processor U5, and a filter circuit. The second processor U4 includes first to fourth ports, and the third processor U5 includes a first and a a second port; the third port of the second processor U4 is connected to the first port of the third processor U5, the fourth port is connected to the second port of the third processor U5; the second port of the second processor U4 is grounded The input end of the filter circuit is connected to the battery connection end, and the output end is connected to the first port of the second processor U4. Further, the filter circuit includes an eighth resistor R21 and a fourth capacitor C19; one end of the eighth resistor R21 is connected to the battery connection end, and the other end is connected to one end of the fourth capacitor and grounded; the eighth resistor R21 and the fourth capacitor C19 A common contact connects the first port of the second processor U4. Specifically, the third processor U5 includes two sets of MOS tubes. The battery protection circuit protects the battery from overcharging, overdischarging, and excessive current, which affects battery life. It has high-accuracy voltage monitoring and time delay circuit with low operating current, overcurrent protection reset, and small The sub-assembly features provide a safe and reliable working environment for battery charging and discharging.

Referring to FIG. 6, in the embodiment of the present invention, the power supply of the emergency lighting circuit provides a constant current through the power module, and the good performance of the power module provides a good working voltage for the light board. When the utility power is connected, the power module works. The entire circuit is powered while charging the battery. The power module includes a fuse, a current conversion circuit, a rectifier circuit, a storage circuit, and a current limiting circuit. The fuse includes a first fuse F1 and a second fuse F2. One end of the fuse is connected to the mains, and the other end is connected to the current conversion. The input end of the circuit, the output end of the current conversion circuit is connected to the input end of the storage circuit, the output end of the storage circuit is connected to the input end of the finishing circuit, and the output end of the rectifier circuit is connected to the input end of the current limiting circuit, the current limiting circuit The output adjusts the input of the management module. Specifically, the rectifier circuit includes a first diode D5, a positive terminal of the first diode D5 is connected to an input end of the rectifier circuit, and a negative terminal is connected to an output end of the rectifier circuit; the current limiting circuit includes a ninth resistor R4, One end of the nine resistor R4 is connected to the output end of the rectifier circuit, and the other end is connected to the output end of the power module.

Herein, the implementation of the technical solution will be further described. Under normal conditions, the current of the power module flows through the winding and is rectified by the first diode D5, the ninth resistor R4 is limited, and the second capacitor C16 is filtered. A constant voltage is provided for the emergency lighting, and the control module is powered on and controls the LED light panel module to be in a normally-off state. The second transistor Q1 and the thyristor TL1 form a voltage stabilizing circuit, the second resistor R15 controls the conduction of the second transistor Q1, the third capacitor C17 stabilizes the thyristor TL1, and the third resistor R16 and the fourth resistor R17 form a sampling. The circuit provides a stable charging voltage for charging the battery. The voltage flows through the diode D11 to charge the battery, and the eighth resistor R21 is limited to flow. After filtering by the fourth capacitor C19, the working voltage is supplied to the second processor U4. The battery protection module The battery is primarily protected by the second processor U4 and the third processor U5. When the utility power is supplied, the emergency light is controlled by the control module to control the LED light board module to be in a normally-off state. At this time, the power supply provided by the power supply module supplies power to the external battery, and the second processor U4 and the third processor U5 of the battery protection module function. , constantly detecting the state of charge of the battery, To prevent overcharging, overdischarging, overcurrent, etc. of the battery, the third processor U5 is internally composed of two sets of MOS tubes. With this type of processor, the working internal resistance of the battery can be reduced, the second processor U4 and the third When the processor U5 is working, it is a low-power micro-ampere level, so that the emergency light can stand by for a long time when the utility power is disconnected from the battery. The standby has been described in detail above. Here, the reloading list indicates that the standby is that when the mains is disconnected and the emergency light is also turned off, the emergency light is still in the standby state, so that the user can be in need. Immediately turn on the emergency light and give it to the light immediately.

The control module is composed of a first processor U6 and a peripheral circuit, and the first capacitor C18 is a filter capacitor. The structure enables the first processor U6 to work stably. When the utility power is connected, the second transistor Q1 of the management module is adjusted. A stable voltage is supplied to the second port of the first processor U6, and the voltage on the second port of the first processor U6 resets the internal circuit of the first processor U6. At this time, the fourth port of the first processor U6 is at a high potential, and the first transistor Q2 is turned off. In this state, the emergency lighting LED lamp does not operate. If the mains is disconnected, the second port voltage of the first processor U6 disappears, the first processor U6 detects that the mains is disconnected, and delays, enters the emergency lighting state, and simultaneously locks the timing control time, the first processor U6 The fourth port outputs a low potential, so that the first transistor Q2 is turned on, and the battery voltage flows through the first transistor Q2 to illuminate the LED array required for emergency, thereby realizing emergency lighting. After the emergency lighting time reaches the lock time of the first processor U6, the fourth port outputs a high potential, the first transistor Q2 is turned off, and the LED light is off. In this embodiment, the lock time is freely set according to the user's needs, and the set time is stored in the control module, thereby realizing emergency lighting when the mains is disconnected and the emergency light is illuminated. The staff can easily leave the work site within a set time. The emergency lighting system has a standby mode, and the third port of the first processor U6 is a forced switch button. If the emergency light is needed, only the button S1 is pressed, and the emergency light in the standby mode is started, so that the LED light board is often On, if you press the button SI again, the LED panel will be off. The button S1 is connected to the control module, that is, by pressing the button S1, the control module is given a control signal, thereby controlling the LED lamp panel to work again in the standby state by the control module, thereby achieving the purpose of emergency lighting. The function of the emergency lighting circuit is mainly realized by the mutual cooperation of the first processor U6 and its peripheral circuits, and the operation of the LED light board module is controlled by the control module, and when the utility power is disconnected, the response can be immediately made. Emergency lighting response, power outage emergency, delay, standby and timing work. When the utility power is normally supplied, the control module controls the LED light board module to be in a normally-off state. At the same time, the battery protection module protects the battery and extends the battery life.

Referring to Figure 2, an emergency lighting system according to still another embodiment of the present invention, the emergency light system applying the emergency light circuit, further comprising a battery and a setting panel.

The setting panel includes a timing signal output end, the control module further includes a timing signal input end; the timing signal output end of the setting panel is connected to the timing signal input end of the emergency light circuit control module, and is used for setting the working time. The delay time and the timing time are included; the battery is a rechargeable battery.

The setting panel can set the delay, standby and scheduled working time of the emergency lighting system as needed. Specifically, the setting panel is a button module, and includes a time increasing button and a time reducing button, wherein the increased or decreased time button is fixed. When the time increase button is pressed, the delay time or working time can be increased. When the time reduction button is pressed, the delay time or working time is shortened. The purpose of the application time setting function is to meet the needs of different groups. When the power is cut off, the time for the staff to apply the emergency lighting system to leave the site varies, so the time of leaving can be flexibly set according to needs, and the use is convenient. The drawback of wasting power in the prior art is overcome. The emergency lighting system is installed in a single, convenient and reliable, and is widely used in applications where lighting is required during power failure.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the specification and the drawings of the present invention may be directly or indirectly applied to other related technologies. The scope of the invention is included in the scope of patent protection of the present invention.

Claims

Claim

1. An emergency light circuit, comprising: an LED light board module, an adjustment management module, a control module, a battery protection module, and a power module;

The power module is configured to convert an external alternating current into a direct gram of electricity required by the emergency light circuit;

The adjustment management module is connected to the control module, and the adjustment management module is configured to provide a stable control voltage for the control module when the external AC power supply is normal;

The battery protection module has an external battery connection end and a power output end, and the power output end is connected to the control module, and the battery protection module is configured to provide charging protection for the external battery when the external AC power supply is normal, and is powered off. When the voltage of the external battery is output to the outside through the power output end;

The control module is coupled to the LED light panel module for providing a working voltage for the LED light panel module.

2. The emergency light circuit according to claim 1, wherein: the control module comprises a first processor, a first capacitor and a first transistor, a first resistor and a button; the first processor comprises a first port connected to the output end of the battery protection module; a first end of the first capacitor is connected to the first port of the first processor, and the other end of the first capacitor is connected to the first processor a fifth port; the second port of the first processor is connected to the output end of the adjustment management module, the third port is connected to the ground after being connected to the button, and the fourth port is connected to the base of the first triode via the first resistor; An emitter of the first transistor is coupled to the first port of the first processor, and a collector is coupled to the LED panel module.

3. The emergency light circuit of claim 1, wherein: the adjustment management module comprises a protection circuit, a voltage stabilization circuit, a sampling circuit, a control circuit, and a first filter circuit;

An input end of the protection circuit is connected to an output end of the power module, an output end of the protection circuit is connected to an input end of the voltage stabilization circuit, and an output end of the voltage stabilization circuit is connected to an input end of the first filter circuit, An output end of the first filter circuit is connected to a sampling end of the sampling circuit, and an output end of the sampling circuit is an output end of the adjustment management module;

The protection circuit includes a second capacitor and a second resistor, and the capacitor is a ceramic capacitor. Claim

The positive pole of the capacitor is connected to one end of the second resistor, the cathode of the capacitor is grounded, and the other end of the second resistor is connected to the input end of the voltage stabilizing circuit;

The voltage stabilizing circuit includes a second triode and a thyristor, a collector of the second triode is connected to a cathode of the second capacitor, a base is connected to a cathode of the thyristor, and an emitter is connected to the first processor of the control circuit a first port; an anode of the thyristor is grounded;

The sampling circuit includes a third resistor and a fourth resistor, one end of the third resistor is connected to the emitter of the second transistor, and the other end of the third resistor is grounded via the fourth resistor;

The first filter circuit includes a third capacitor, one end of the third capacitor is connected to a cathode of the second triode thyristor, and the other end of the third capacitor is connected to a gate level of the thyristor.

The emergency light circuit of claim 3, wherein: the adjustment management module further comprises a red and green indicating circuit, wherein the red and green indicating circuit comprises an indicator circuit, a current limiting circuit, a second transistor, a third triode and fifth to seventh resistors;

One end of the fifth resistor is connected to the emitter of the third transistor, and the other end of the fifth resistor is connected to the green control end of the indicator circuit, and the input end of the current limiting circuit is connected to the emission of the third transistor The output terminal is connected to the base of the third transistor through the sixth resistor, and the collector of the third transistor is connected to the seventh resistor and then connected to the red control terminal of the indicator circuit.

The emergency light circuit according to any one of claims 2 to 4, characterized in that the first to third transistors are low-conducting varistor transistors.

The emergency light circuit of claim 1, wherein: the battery protection module comprises a second processor, a third processor, and a second filter circuit;

The second processor includes first to fourth ports, and the third processor includes first and second ports;

The third port of the second processor is connected to the first port of the third processor, the fourth port of the second processor is connected to the second port of the third processor; the second port of the second processor is grounded;

The input end of the second filter circuit is connected to the battery connection end, and the output end of the second filter circuit is connected to the first port of the second processor.

The emergency light circuit according to claim 6, wherein: the second filter circuit comprises an eighth resistor and a fourth capacitor; Claim

One end of the eighth resistor is connected to the battery connection end, and the other end is connected to the fourth capacitor and grounded; the common junction of the eighth resistor and the fourth capacitor is connected to the first port of the second processor.

8. The emergency light circuit of claim 6, wherein: said third processor comprises two sets of MOS tubes.

9. The emergency light circuit of claim 1, wherein: the power module comprises a fuse, a current conversion circuit, a rectifier circuit, a storage circuit, and a current limiting circuit; one end of the fuse is connected to the mains, and One end is connected to the input end of the current conversion circuit, the output end of the current conversion circuit is connected to the input end of the storage circuit, the output end of the storage circuit is connected to the input end of the rectifier circuit, and the output end of the rectifier circuit is connected to the input of the current limiting circuit The output end of the current limiting circuit is connected to the input end of the adjustment management module;

The rectifier circuit includes a first diode, a positive pole of the first diode is connected to an input end of the rectifier circuit, and a negative pole is connected to an output end of the rectifier circuit;

The current limiting circuit includes a ninth resistor, one end of the ninth resistor is connected to the output end of the rectifier circuit, and the other end of the ninth resistor is connected to the output end of the power module.

An emergency light system, the emergency light circuit of any one of claims 1-9, further comprising a battery and a setting panel;

The setting panel includes a timing signal output end, the control module further includes a timing signal input end; the timing signal output end of the setting panel is connected to the timing signal input end of the emergency light circuit control module, and is used for setting the working time. The method includes a delay, a standby, and a timing; the battery is connected to a battery connection end of the battery protection module, and the battery is a rechargeable battery.