CN105357840B - A kind of method of work of emergency light - Google Patents
A kind of method of work of emergency light Download PDFInfo
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- CN105357840B CN105357840B CN201510913948.0A CN201510913948A CN105357840B CN 105357840 B CN105357840 B CN 105357840B CN 201510913948 A CN201510913948 A CN 201510913948A CN 105357840 B CN105357840 B CN 105357840B
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- resistance
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- light
- alternating current
- integrated circuit
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Classifications
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- 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
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/12—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
Abstract
This patent discloses a kind of method of works of emergency light, include the following steps：（1）When the alternating current source normal work that alternating current provides, the work of controlled by sound and light lighting circuit, when light is strong, light bulb does not work；（2）When there is huge sound of movement, sound pick-up obtains light bulb and is lit；（3）The level of 6th foot of time-base integrated circuit constantly increases；（4）When the 6th foot level of time-base integrated circuit reaches setting voltage, light bulb extinguishes；Entire controlled by sound and light lighting circuit resets；（5）Charging circuit first passes through constant-current charging circuit when controlled by sound and light lighting circuit works and charges for accumulator, when the voltage of accumulator reaches predetermined value, trickle charging circuit charging；（6）When the alternating current source that alternating current provides is stopped, spare bulb is lit.（7）When alternating current source is resumed work, spare bulb extinguishes.The circuit of this patent corridor lamp and emergency light reduce, install it is simple and easy to maintain.
Description
Technical field
The present invention relates to field of light fittings, specifically disclose a kind of method of work of emergency light.
Background technology
When major accident occurs, fleeing for life from staircase, often people are safest to withdraw path.It is however, because great
Accident often has a power failure when occurring, and staircase is generally all more dim, is unfavorable for people and quickly withdraws.It is mounted on stair now
In emergency light generally all dim light, institute's range of exposures is very fuzzy, for the people having defective vision, can not see building clearly
Ladder be easy to cause and gets injured by a fall.And present emergency light and corridor lamp are essentially all what is be provided separately so that the wiring of first floor
Increase with installation, and be unfavorable for line upkeep.
Invention content
The invention is intended to provide a kind of method of work of emergency light, it is separated from each other and sets to solve existing corridor lamp and emergency light
Putting causes circuit to increase, installs the problem of complicated and maintenance is not easy.
The method of work of emergency light in this programme, includes the following steps：
（1）When the alternating current source normal work that alternating current provides, controlled by sound and light lighting circuit work, photo resistance receives light letter
Number, when light is strong, low resistive state is presented in photo resistance, and the signal for making to flow to time-base integrated circuit from photo resistance is high electricity
It is flat, time-base integrated circuit is made to export low level, the thyristor being connect with time-base integrated circuit is turned off without trigger current, with thyristor
The light bulb of connection does not work；
（2）When there is huge sound of movement sound in staircase, sound pick-up obtains acoustic signals, the first triode of NPN type
There is operating current conducting in base stage, and the collector potential of the first triode declines rapidly, and the first diode becomes ending from being connected,
Photo resistance and the 4th electric resistance partial pressure, make photo resistance input into the level in time-base integrated circuit set voltage hereinafter, when
The output terminal output high level of base integrated circuit, thyristor are triggered conducting, and light bulb is lit；
（3）Time-base integrated circuit export high level while, when basis set into inside electricity amplifier tube cut-off, when basis set into
7th foot of circuit is hanging by internal circuit, so as to relieve the block to the second electrolytic capacitor, then alternating current source cathode voltage
It is charged by the 5th resistance to the second electrolytic capacitor, the level of the 6th foot of time-base integrated circuit is made constantly to increase；
（4）When the 6th foot level of time-base integrated circuit reaches setting voltage, transient state terminates, controlled by sound and light lighting circuit
Originally stable state is restored to, the third foot of time-base integrated circuit is still low level, and thyristor is automatic in alternating current zero passage
Shutdown, light bulb extinguish；At the same time, the discharge tube conducting inside time-base integrated circuit, the 7th foot output of time-base integrated circuit
Low level, the 7th foot that the charge stored in the second electrolytic capacitor passes through time-base integrated circuit discharge, entire controlled by sound and light illumination
Circuit reset；
（5）Charging circuit is first passed through when controlled by sound and light lighting circuit works by the transformer being connect with alternating current source
Constant-current charging circuit charges for accumulator, when battery voltage detection circuit detects that the voltage of accumulator reaches predetermined value, tiny stream
Current charge circuit starts to charge to accumulator, and after charging complete, charging circuit is stopped；
（6）When there is emergency, when the alternating current source that alternating current provides is stopped, it is connect with controlled by sound and light lighting circuit
Electromagnet loses magnetism, in charging circuit by electromagnet adsorb and disconnect relay connect, make accumulator, the 12nd resistance,
The circuit conducting that spare bulb and relay connect into, spare bulb are lit；
（7）When alternating current source is resumed work, the switch on relay be energized again generate magnetic electromagnet absorption and
Disconnect the circuit being connect with relay, spare bulb extinguishes.
Working principle and beneficial effect：
Photo resistance makes thyristor be turned off without trigger current when light is strong, and the light bulb being connect with thyristor does not work, and keeps away
Exempt from bright light waste on daytime electric energy.
When there is huge sound of movement sound in staircase, sound pick-up obtains acoustic signals, makes brilliant lock by time-base integrated circuit
Pipe is triggered conducting, and light bulb is lit.Time-base integrated circuit makes thyristor automatic in alternating current zero passage after a period of time
Shutdown, light bulb extinguish.It can be lighted by sound and extinguish light bulb, light bulb is made just to be lit when needed, avoid waste electric energy.
Charging circuit connects alternating current source by transformer when controlled by sound and light lighting circuit works and plugs in, and is filling
Charging is automatically stopped after the completion of electricity.When there is emergency mains failure, the electricity that is connect with controlled by sound and light lighting circuit
Magnet loses magnetism, and the relay for being adsorbed and disconnected by electromagnet connects, and leads the circuit that spare bulb and relay connect into
Logical, spare bulb is lit.Be convenient for people to from staircase by when can have and clearly illuminate, be convenient for people to that foot can be seen clearly
Under stair, avoid occurring accident, speed is withdrawn in quickening.
The present invention makes corridor lamp and emergency light be joined to one another, make installation circuit reduce, install it is easy and easy to maintain.
Further, it when constant-current charging circuit charges to accumulator, since battery tension is relatively low, is connect with accumulator
NPN type the cut-off of the second triode, third transistor obtains positively biased to be connected by the 7th resistance, and alternating current source passes through the three or three pole
Pipe, the 4th triode of NPN type and the 9th resistance charge to accumulator, while the first light emitting diode is lighted.Conveniently pass through perseverance
Current charge circuit rapidly carries out accumulator large current charge, and the first light emitting diode provides constant current reference voltage as charging
Instruction.
Further, in constant-current charging circuit in the charging process of accumulator, battery tension is gradually increasing, when rising to
During the predetermined value that the second adjustable resistance adjusting in battery voltage detection circuit forms, the second triode ON, third transistor
Cut-off, the first light emitting diode extinguish, and accumulator is transferred to trickle charge automatically.Large current charge is being carried out, it will in accumulator
Full of when then to accumulator carry out trickle charge, facilitate preservation battery capacity.
Further, the second light emitting diode is used as the indicator light of trickle charging circuit.When in trickle charge, second shines
Diode is lighted, and after charging, the second light emitting diode extinguishes, and charging circuit is reminded to be stopped.
Further, sound pick-up obtains voice signal by the spherical shell being close to therewith.Sound pick-up is facilitated more clearly to obtain
Voice signal improves the sensitivity of emergency light.
Further, light bulb and spare bulb are connected to by the card hole being arranged in connecting seat groove on connecting seat.It is convenient
Light bulb and spare bulb are connected firmly on connecting seat, while light bulb and spare bulb is made to be housed in lampshade.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is the circuit diagram of the controlled by sound and light lighting circuit of the embodiment of the present invention；
Fig. 3 is the circuit diagram of the charging circuit of the embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail：
Reference numeral in Figure of description 1 includes：Bottom plate 1, spherical shell 2, connecting seat 3, lampshade 4, mounting hole 5.
As shown in Figure 1, the emergency light in embodiment, including circular bottom plate 1, the surrounding of bottom plate 1 is provided with for by bottom plate 1
Mounting hole 5 mounted to a wall, and also cementing on the bottom surface of bottom plate 1 have the small suction that can be placed directly against on slippery walls or glass surface
Disk.Spherical shell 2 is bolted on bottom plate 1, spherical shell 2 is radially welded with connecting seat 3, lampshade is connected on connecting seat 3
4.The bottom end of lampshade 4 is equipped with external screw thread, and connecting seat 3, which is equipped with, has female groove, the diameter of groove and the bottom end of lampshade 4
Diameter matches；Lampshade 4 is threaded on connecting seat 3.Facilitate the connection and dismounting of lampshade 4.
Light bulb and spare bulb are installed in lampshade 4；Circuit board is inlaid on bottom plate 1, acousto-optic control is arranged on circuit board
Lighting circuit and charging circuit processed；Light bulb is connect with controlled by sound and light lighting circuit, and spare bulb is connect with charging circuit.
It is opened on connecting seat 3 there are two the card hole for being respectively intended to clamping light bulb and spare bulb, card hole is located in groove.Pass through
Connecting seat 3 facilitates and light bulb and spare bulb is connected firmly on connecting seat 3, while light bulb and spare bulb is made to be housed in lamp
In cover 4.Lampshade 4 uses transparent tempered glass, and anti-fog layer is coated on the outer surface of tempered glass.Tempered glass has good
Hardness, protected light bulb and spare bulb in lampshade 4, avoid hit damage.In tempered glass exterior coating antifogging layer, keep away
Exempt from 4 outer surface of lampshade to haze, lampshade 4 is made light clearly will to pass out always.
Reference numeral in Figure of description 2 is：Sound pick-up B, first resistor R1, the first adjustable resistance RP1, second resistance
R2,3rd resistor R3, photo resistance RG, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the first triode VT1, first
Diode VD1, the second diode VD2, third diode VD3, time-base integrated circuit NE555, thyristor VS, light bulb EL1, second
Electrolytic capacitor C2, third capacitance C3, the 4th capacitance C4, the 5th electrolytic capacitor C5, voltage-stablizer IC.
As shown in Fig. 2, controlled by sound and light lighting circuit includes sound pick-up B, one end of sound pick-up B is connected to what is provided by alternating current
The cathode of alternating current source, the other end connection base stage of the first triode VT1 of NPN type of sound pick-up B and one end of first resistor R1,
The other end of first resistor R1 connects one end of the first adjustable resistance RP1, and the other end of the first adjustable resistance RP1 and adjustable side connect
Connect the input terminal of voltage-stablizer IC.The output terminal of voltage-stablizer IC connects the cathode of the second diode VD2, the sun of the second diode VD2
Pole connection one end of the 6th capacitance, one end of the 6th resistance R6, third diode VD3 cathode, the other end of the 6th capacitance, the
The other end of six resistance R6 is connected to the anode of alternating current source and one end of light bulb EL1.The other end connection thyristor VS of light bulb EL1
The first main electrode, the second main motor of thyristor VS is connected to the cathode of alternating current source.When the control pole of thyristor VS is connected to
The third foot of base integrated circuit NE555.The anode of third electrode tube is connected to the cathode of alternating current source.
The third end of voltage-stablizer IC is connected to the cathode of alternating current source, is connected between the input terminal of voltage-stablizer IC and third end
The 5th electrolytic capacitor C5 is connected between the output terminal of 4th capacitance C4, voltage-stablizer IC and third end, the 5th electrolytic capacitor C5's
The output terminal of anode connection voltage-stablizer IC.The 4th foot and octal of time-base integrated circuit NE555 and the input terminal of voltage-stablizer IC
Connection.Third capacitance C3 is connected between the 5th foot of time-base integrated circuit NE555 and the cathode of alternating current source.Time-base integrated circuit
The first foot of NE555 is connected to the cathode of alternating current source.The 6th foot of time-base integrated circuit NE555 and the 7th foot connect the 5th resistance
One end of R5 and the anode of the second electrolytic capacitor C2.The input terminal of the other end connection voltage-stablizer IC of 5th resistance R5.Second electricity
The cathode of solution capacitance C2 is connected to the cathode of alternating current source.It is connected in turn between the input terminal of voltage-stablizer IC and the cathode of alternating current source
Photo resistance RG and the series arm of the 4th resistance R4 connections, the cathode of the first diode VD1 and time-base integrated circuit NE555's
Crus secunda is both connected between photo resistance RG and the 4th resistance R4.
One end of the input terminal connection second resistance R2 of voltage-stablizer IC, the other end of second resistance R2 connect the first diode
The collector of the anode of VD1 and the first triode VT1, one end of the emitter connection 3rd resistor R3 of the first triode VT1 and
The anode of first electrolytic capacitor.The cathode of the other end of 3rd resistor R3 and the first electrolytic capacitor is connected to the cathode of alternating current source.
Sound pick-up B is tightly attached on spherical shell inner wall.Sound pick-up B is facilitated more clearly to obtain voice signal, improves emergency light
Sensitivity.
Daytime, light was strong, and low resistive state is presented in photo resistance RG, and the crus secunda of time-base integrated circuit NE555 is high level,
Third foot exports low level, and thyristor VS is turned off without trigger current, and light bulb EL does not work.Light bulb is avoided in the case that unwanted
It lights, avoids waste of energy.
During acoustic control, when sound pick-up B obtains acoustic signals, the base stage of the first triode VT1 there is operating current and
Conducting, collector potential decline rapidly, the first diode VD1, switch to end by conducting.Due to the electricity of photo resistance RG and the 4th
Hinder R4 partial pressure, as a result the level of the crus secunda of time-base integrated circuit NE555 setting voltage hereinafter, third foot output high level,
Thyristor VS is triggered conducting, and light bulb EL is lighted.After sound pick-up B, which obtains sound wave, lights light bulb, although photo resistance RG quilts
Light irradiates and low resistive state is presented so that high level is presented in the crus secunda of time-base integrated circuit NE555 again, does not influence but entire
The work of circuit, the setting time of time-base integrated circuit NE555 are solely dependent upon the 5th resistance R5 and the second electrolytic capacitor in circuit
The parameter value of C2.
While the third foot of time-base integrated circuit NE555 exports high level, putting inside time-base integrated circuit NE555
Big pipe cut-off, the 7th foot is hanging by internal circuit, and so as to relieve the block to the second electrolytic capacitor C2, then positive supply is electric
Pressure is charged by the 5th resistance R5 to the second electrolytic capacitor C2, and the level of the 6th foot of time-base integrated circuit NE555 is made constantly to rise
It is high.When the 6th foot level of time-base integrated circuit NE555 reaches setting voltage, transient state terminates, and circuit is restored to original stabilization
State, still for low level, thyristor VS is automatically shut down third foot in alternating current zero passage, and light bulb EL extinguishes.At the same time, when
Discharge tube conducting inside base integrated circuit NE555, the 7th foot export low level, and the charge stored in the second electrolytic capacitor C2 leads to
Cross the 7th foot electric discharge of time-base integrated circuit NE555, entire circuit reset.
Reference numeral in Figure of description 3 is：Transformer T, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9,
Ten resistance R10, the 11st resistance R11, the 12nd resistance R12, the second adjustable resistance RP2, the second triode VT2, the three or three pole
Pipe VT3, the 4th triode VT4, the first Light-emitting diode LED 1, the second Light-emitting diode LED 2, spare bulb EL2, relay
K, bridge rectifier diode VD4, the 5th diode VD5.
As shown in figure 3, charging circuit includes the transformer T being connect with the alternating current source that alternating current provides, connect with transformer T
Bridge rectifier diode VD4 and the constant-current charging circuit being connected between two output terminals of bridge rectifier diode VD4, tiny stream
Current charge circuit and battery voltage detection circuit；Battery voltage detection circuit includes accumulator, and accumulator fills respectively with constant current
Circuit is connected with trickle charging circuit；Accumulator is sequentially connected relay K, spare bulb EL2 and the 12nd resistance R12 and shape
Into circuit；Controlled by sound and light lighting circuit is equipped with electromagnet, and the switch that electromagnet is generated after being powered on magnetic absorption relay K makes
Relay K is disconnected.
Constant-current charging circuit includes the 7th resistance R7 being connect with the positive output end of bridge rectifier diode VD4 and the 7th
The four or three pole of the third transistor VT3 of the NPN type of resistance R7 connections, the NPN type being connect with the emitter of third transistor VT3
Pipe VT4 and the 9th resistance R9 being connect with the emitter of the 4th triode VT4, the 9th resistance R9 connection bridge rectifier diodes
The negative output terminal of VD4；The collector of third transistor VT3 and the 4th triode VT4 are connected to the cathode of accumulator；Accumulator
Anode and bridge rectifier diode VD4 positive output end between be connected with the 5th diode VD5；The moon of 5th diode VD5
The anode of pole and accumulator connects；It is connected between the base stage of third transistor VT3 and the negative output terminal of bridge rectifier diode VD4
There is the first Light-emitting diode LED 1, the anode of the first Light-emitting diode LED 1 is connect with the base stage of third transistor VT3.Pass through perseverance
Current charge circuit can rapidly carry out accumulator large current charge, and the first Light-emitting diode LED 1 provides constant current reference voltage
As charging instruction.
Battery voltage detection circuit includes sequentially connected second triode VT2, the 8th resistance R8 and the second adjustable resistance
RP2；Second triode VT2 is NPN type triode, the base stage of the collector connection third transistor VT3 of the second triode VT2 and
The negative output terminal of emitter connection bridge rectifier diode VD4；The base stage of second triode VT2 connects the one of the 8th resistance R8
End, the other end of the 8th resistance R8 connect the adjustable side of the second adjustable resistance RP2, one end connecting bridge of the second adjustable resistance RP2
The positive output end of formula rectifier diode VD4, the cathode of the other end connection accumulator of the second adjustable resistance RP2.When starting to charge up,
Since battery tension is relatively low, the second triode VT2 cut-offs, third transistor VT3 obtains positively biased to be connected by the 7th resistance R7,
Power supply is charged, while the first light emitting diode by third transistor VT3, the 4th triode VT4 and the 9th resistance R9 to battery
LED1 is lighted.In charging process, cell voltage is gradually increasing, when rising to predetermined value, the second triode VT2 conductings, the
Three triode VT3 end, and the first Light-emitting diode LED 1 is extinguished, and opposite large current charge terminates, and battery is transferred to trickle automatically
Charging.The cell voltage predetermined value of charging variation can be adjusted by adjusting adjustable resistance, and charging is made to be transferred to trickle by constant-current charge and is filled
Electricity.
Trickle charging circuit includes the tenth resistance R10, the 11st resistance R11 and the second Light-emitting diode LED 2, the second hair
The cathode of the anode connection accumulator of optical diode LED2, the cathode of the second Light-emitting diode LED 2 and the 11st resistance R11 connect
It connects, the tenth resistance R10 is in parallel with the series arm that the second Light-emitting diode LED 2 and the 11st resistance R11 are formed.When the two or three
After pole pipe VT2 conductings, third transistor VT3 cut-offs, trickle charging circuit starts to charge to accumulator, bridge rectifier diode
The electric current of the positive output end outflow of VD4 is connected to the anode of accumulator by the 5th diode VD5, and electric current is from the cathode of accumulator
The negative output terminal and shape of bridge rectifier diode VD4 is passed in outflow back by the second Light-emitting diode LED 2 and the 11st resistance R11
Into circuit, accumulator is electrically charged in this circuit.
Charging circuit quickly-chargeable, full of automatic stop.7th resistance R7, the 9th resistance R9 and third transistor VT3 and
Four or three pole VT34 forms constant-current charging circuit；First Light-emitting diode LED 1 provides constant current reference voltage and doubles as charging instruction；
8th resistance R8, the second adjustable resistance RP2 and the second triode VT2 composition battery voltage detection circuits；Tenth resistance R10,
11 resistance R11 and the second Light-emitting diode LED 2 composition trickle charging circuit.
When starting to charge up, since battery tension is relatively low, the second triode VT2 cut-offs, third transistor VT3 passes through the 7th
Resistance R7 obtains positively biased and is connected, and power supply is charged by third transistor VT3, the 4th triode VT4 and the 9th resistance R9 to battery,
The first Light-emitting diode LED l is lighted simultaneously.In charging process, cell voltage is gradually increasing, when rising to predetermined value, the
Two triode VT2 are connected, and third transistor VT3 cut-offs, the first Light-emitting diode LED 1 is extinguished, opposite large current charge knot
Beam, battery are transferred to trickle charge automatically, are conducive to preserve battery capacity in this way.Second Light-emitting diode LED 2 refers to as trickle charge
Show use.After charging.Charging circuit is stopped.
When having a power failure, controlled by sound and light lighting circuit is stopped because no alternating current provides energy, with acousto-optic control
The electromagnet dead electricity of circuit communication processed, loses magnetism, relay K conductings so that the standby lighting circuit in charging circuit starts
Work.Accumulator and the 12nd resistance R12 and spare bulb EL2 are formed into a loop, and light EL2.When a call comes, on relay K
Switch be energized again and generate magnetic electromagnet absorption and disconnect standby lighting circuit, spare bulb EL extinguishes.
The method of work of emergency light, includes the following steps：
（1）When the alternating current source normal work that alternating current provides, controlled by sound and light lighting circuit work, photo resistance receives light letter
Number, when light is strong, low resistive state is presented in photo resistance, and the signal for making to flow to time-base integrated circuit from photo resistance is high electricity
It is flat, time-base integrated circuit is made to export low level, the thyristor being connect with time-base integrated circuit is turned off without trigger current, with thyristor
The light bulb of connection does not work；
（2）When there is huge sound of movement sound in staircase, sound pick-up obtains acoustic signals, the first triode of NPN type
There is operating current conducting in base stage, and the collector potential of the first triode declines rapidly, and the first diode becomes ending from being connected,
Photo resistance and the 4th electric resistance partial pressure, make photo resistance input into the level in time-base integrated circuit set voltage hereinafter, when
The output terminal output high level of base integrated circuit, thyristor are triggered conducting, and light bulb is lit；
（3）Time-base integrated circuit export high level while, when basis set into inside electricity amplifier tube cut-off, when basis set into
7th foot of circuit is hanging by internal circuit, so as to relieve the block to the second electrolytic capacitor, then alternating current source cathode voltage
It is charged by the 5th resistance to the second electrolytic capacitor, the level of the 6th foot of time-base integrated circuit is made constantly to increase；
（4）When the 6th foot level of time-base integrated circuit reaches setting voltage, transient state terminates, controlled by sound and light lighting circuit
Originally stable state is restored to, the third foot of time-base integrated circuit is still low level, and thyristor is automatic in alternating current zero passage
Shutdown, light bulb extinguish；At the same time, the discharge tube conducting inside time-base integrated circuit, the 7th foot output of time-base integrated circuit
Low level, the 7th foot that the charge stored in the second electrolytic capacitor passes through time-base integrated circuit discharge, entire controlled by sound and light illumination
Circuit reset；
（5）Charging circuit is first passed through when controlled by sound and light lighting circuit works by the transformer being connect with alternating current source
Constant-current charging circuit charges for accumulator, when battery voltage detection circuit detects that the voltage of accumulator reaches predetermined value, tiny stream
Current charge circuit starts to charge to accumulator, and after charging complete, charging circuit is stopped；
（6）When there is emergency, when the alternating current source that alternating current provides is stopped, it is connect with controlled by sound and light lighting circuit
Electromagnet loses magnetism, in charging circuit by electromagnet adsorb and disconnect relay connect, make accumulator, the 12nd resistance,
The circuit conducting that spare bulb and relay connect into, spare bulb are lit.
（7）When alternating current source is resumed work, the switch on relay be energized again generate magnetic electromagnet absorption and
Disconnect the circuit being connect with relay, spare bulb extinguishes.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. a kind of method of work of emergency light, it is characterised in that：Controlled by sound and light lighting circuit in emergency light includes sound pick-up B,
One end of sound pick-up B is connected to the cathode of the alternating current source provided by alternating current, and the other end of sound pick-up B connects the 1st of NPN type the
The base stage of pole pipe VT1 and one end of first resistor R1, the other end of first resistor R1 connect one end of the first adjustable resistance RP1,
The other end of first adjustable resistance RP1 connects the input terminal of voltage-stablizer IC with adjustable side；The output terminal connection second of voltage-stablizer IC
The cathode of diode VD2, the anode of the second diode VD2 connect one end of the 6th capacitance, one end of the 6th resistance R6, the three or two
The cathode of pole pipe VD3, the other end of the 6th capacitance, the other end of the 6th resistance R6 are connected to the anode of alternating current source and light bulb EL1
One end；The first main electrode of the other end connection thyristor VS of light bulb EL1, the second main motor of thyristor VS are connected to exchange
The cathode in source；The control pole of thyristor VS is connected to the third foot of time-base integrated circuit NE555；The anode of third diode VD3
It is connected to the cathode of alternating current source；The third end of voltage-stablizer IC is connected to the cathode of alternating current source, the input terminal and third of voltage-stablizer IC
The 4th capacitance C4 is connected between end, is connected with the 5th electrolytic capacitor C5 between the output terminal of voltage-stablizer IC and third end, the 5th
The output terminal of the anode connection voltage-stablizer IC of electrolytic capacitor C5；The 4th foot and octal of time-base integrated circuit NE555 and voltage stabilizing
The input terminal connection of device IC；Third capacitance C3 is connected between the 5th foot of time-base integrated circuit NE555 and the cathode of alternating current source；When
The first foot of base integrated circuit NE555 is connected to the cathode of alternating current source；The 6th foot of time-base integrated circuit NE555 and the 7th foot connect
Connect one end of the 5th resistance R5 and the anode of the second electrolytic capacitor C2；The input of the other end connection voltage-stablizer IC of 5th resistance R5
End；The cathode of second electrolytic capacitor C2 is connected to the cathode of alternating current source；Between the input terminal of voltage-stablizer IC and the cathode of alternating current source
Be connected with the series arm of photo resistance RG and the 4th resistance R4 connections in turn, the cathode of the first diode VD1 with when basis set into
The crus secunda of circuit NE555 is both connected between photo resistance RG and the 4th resistance R4；The input terminal connection second of voltage-stablizer IC
One end of resistance R2, the other end of second resistance R2 connect the anode of the first diode VD1 and the current collection of the first triode VT1
Pole, one end of emitter connection 3rd resistor R3 of the first triode VT1 and the anode of the first electrolytic capacitor；3rd resistor R3's
The cathode of the other end and the first electrolytic capacitor is connected to the cathode of alternating current source；
The method of work of emergency light includes the following steps：
(1) when the alternating current source normal work that alternating current provides, controlled by sound and light lighting circuit work, photo resistance RG receives light letter
Number, when light is strong, low resistive state is presented in photo resistance RG, makes to flow to time-base integrated circuit NE555's from photo resistance RG
Signal is high level, and time-base integrated circuit NE555 is made to export low level, the thyristor VS being connect with time-base integrated circuit NE555
No trigger current shutdown, the light bulb EL1 being connect with thyristor VS do not work；
(2) when there is sound of movement sound in staircase, sound pick-up B obtains acoustic signals, the base stage of the first triode VT1 of NPN type
There is operating current conducting, the collector potential of the first triode VT1 declines rapidly, and the first diode VD1 becomes cutting from being connected
Only, photo resistance RG and the 4th resistance R4 partial pressures, input photo resistance RG and are being set into the level in time-base integrated circuit NE555
Constant voltage is hereinafter, the output terminal output high level of time-base integrated circuit NE555, thyristor VS are triggered conducting, and light bulb EL1 is by point
It is bright；
(3) time-base integrated circuit NE555 export high level while, when basis set into inside electricity amplifier tube cut-off, when basis set
The 7th foot into circuit NE555 is hanging by internal circuit, so as to relieve the block to the second electrolytic capacitor C2, then alternating current source
Cathode voltage is charged by the 5th resistance R5 to the second electrolytic capacitor C2, makes the level of the 6th foot of time-base integrated circuit NE555
Constantly raising；
(4) when the 6th foot level of time-base integrated circuit NE555 reaches setting voltage, transient state terminates, controlled by sound and light power for illumination
Road is restored to originally stable state, and the third foot of time-base integrated circuit NE555 is still low level, and thyristor VS is in alternating current mistake
It is automatically shut down when zero, light bulb EL1 extinguishes；At the same time, inside time-base integrated circuit NE555 discharge tube conducting, when basis set into
The 7th foot of circuit NE555 exports low level, and the charge stored in the second electrolytic capacitor C2 passes through time-base integrated circuit NE555's
7th foot discharges, and entire controlled by sound and light lighting circuit resets；
(5) charging circuit first passes through perseverance when controlled by sound and light lighting circuit works by the transformer T being connect with alternating current source
Current charge circuit charges for accumulator, when battery voltage detection circuit detects that the voltage of accumulator reaches predetermined value, trickle
Charging circuit starts to charge to accumulator, and after charging complete, charging circuit is stopped；
(6) when there is emergency, when the alternating current source that alternating current provides is stopped, the electromagnetism that is connect with controlled by sound and light lighting circuit
Iron loses magnetism, in charging circuit by electromagnet adsorb and disconnect relay K connect, make accumulator, the 12nd resistance R12,
The circuit conducting that spare bulb EL2EL1 and relay K are connected into, spare bulb EL2EL1 are lit；
(7) when alternating current source is resumed work, the switch on relay K be energized again generate magnetic electromagnet absorption and make with
The circuit of relay K connections disconnects, and spare bulb EL2EL1 extinguishes.
2. the method for work of emergency light according to claim 1, it is characterised in that：Constant-current charging circuit includes whole with bridge-type
Flow the positive output end connection of diode VD4 the 7th resistance R7, with the third transistor VT3 of the 7th resistance R7 NPN types connecting,
4th triode VT4 of the NPN type being connect with the emitter of third transistor VT3 and the emitter with the 4th triode VT4
9th resistance R9 of connection, the negative output terminal of the 9th resistance R9 connection bridge rectifier diodes VD4；Third transistor VT3 and
The collector of four triode VT4 is connected to the cathode of accumulator；When constant-current charging circuit charges to accumulator, due to storing
Cell voltage is relatively low, and the second triode VT2 cut-offs for the NPN type being connect with accumulator, third transistor VT3 passes through the 7th resistance
R7 obtains positively biased and is connected, and alternating current source is by third transistor VT3, the 4th triode VT4 of NPN type and the 9th resistance R9 to electric power storage
Pond is charged, while the first Light-emitting diode LED 1 is lighted.
3. the method for work of emergency light according to claim 2, it is characterised in that：Battery voltage detection circuit is included successively
The second triode VT2, the 8th resistance R8 and the second adjustable resistance RP2 of connection；Second triode VT2 is NPN type triode, the
The base stage and emitter of the collector connection third transistor VT3 of two triode VT2 connects the negative defeated of bridge rectifier diode VD4
Outlet；In constant-current charging circuit in the charging process of accumulator, battery tension is gradually increasing, examined when rising to cell voltage
During the predetermined value that the second adjustable resistance RP2 adjustings in slowdown monitoring circuit form, the second triode VT2 conductings, third transistor VT3 is cut
Only, the first Light-emitting diode LED 1 is extinguished, and accumulator is transferred to trickle charge automatically.
4. the method for work of emergency light according to claim 3, it is characterised in that：Second Light-emitting diode LED 2 is used as tiny stream
The indicator light of current charge circuit.
5. the method for work of emergency light according to claim 4, it is characterised in that：Sound pick-up B passes through the ball be close to therewith
Shape shell obtains voice signal.
6. the method for work of emergency light according to claim 5, it is characterised in that：Light bulb EL1 and spare bulb EL2EL1
It is connected on connecting seat by the card hole being arranged in connecting seat groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913948.0A CN105357840B (en) | 2015-12-12 | 2015-12-12 | A kind of method of work of emergency light |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510913948.0A CN105357840B (en) | 2015-12-12 | 2015-12-12 | A kind of method of work of emergency light |
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| CN105357840A CN105357840A (en) | 2016-02-24 |
| CN105357840B true CN105357840B (en) | 2018-06-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107277971B (en) * | 2017-06-16 | 2023-08-29 | 浙江阳光美加照明有限公司 | Light-operated switch circuit of LED lamp |
| CN111823677A (en) * | 2020-06-02 | 2020-10-27 | 中电科工程建设有限公司 | Brightness-adjustable lighting film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1535216A (en) * | 1975-12-03 | 1978-12-13 | Sound Diffusion Ltd | Emergency lighting assemblies |
| KR20020096253A (en) * | 2001-06-19 | 2002-12-31 | 김철수 | emergency lamp apparatus |
| KR20060098318A (en) * | 2005-03-11 | 2006-09-18 | 박성용 | Emergency light system |
| CN2893405Y (en) * | 2006-04-21 | 2007-04-25 | 刘树强 | Sound control lamp with emergency lighting function |
| CN204350411U (en) * | 2015-01-30 | 2015-05-20 | 聊城市科特祥瑞新能源有限公司 | A kind of LED emergency light |
-
2015
- 2015-12-12 CN CN201510913948.0A patent/CN105357840B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1535216A (en) * | 1975-12-03 | 1978-12-13 | Sound Diffusion Ltd | Emergency lighting assemblies |
| KR20020096253A (en) * | 2001-06-19 | 2002-12-31 | 김철수 | emergency lamp apparatus |
| KR20060098318A (en) * | 2005-03-11 | 2006-09-18 | 박성용 | Emergency light system |
| CN2893405Y (en) * | 2006-04-21 | 2007-04-25 | 刘树强 | Sound control lamp with emergency lighting function |
| CN204350411U (en) * | 2015-01-30 | 2015-05-20 | 聊城市科特祥瑞新能源有限公司 | A kind of LED emergency light |
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| CN105357840A (en) | 2016-02-24 |
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