CN206525008U - Twin wire emergency lighting inverter power supply device - Google Patents

Abstract

The utility model is related to a kind of twin wire emergency lighting inverter power supply device, is mainly used in meeting the non-public independent place emergency lighting demand such as vast family.A kind of twin wire emergency lighting inverter power supply device：Including urban network electricity source, 2 wire type inverter power circuits and emergency light, connected between urban network electricity source and emergent lamp source by 2 wire type inverter power circuits；2 described wire type inverter power circuits include emergency cell, emergent inversion lighting circuit and Switching Power Supply charging circuit；During normal illumination, urban network electricity source passes sequentially through 2 wire type on lines, switch K, the contact J1 of relay and is connected with emergent lamp source, and Switching Power Supply charging circuit charges to emergency cell, has by circuit guarantee on duty and does not occur emergent conversion during electricity；During power failure, the upset of on duty road, the input of emergent inversion lighting circuit is connected with emergency cell, output end by the contact J2 of relay, light emergent lamp source.

Description

Twin wire emergency lighting inverter power supply device

Technical field

The utility model is related to emergency lighting field, and in particular to a kind of twin wire emergency lighting inverter power supply device.

Background technology

Directly the overlap joint live wire 1 of civil power 1 zero line (220v exchanges), middle to concatenate 1 switch, it is possible to control illuminating lamp Light and extinguish, here it is twin wire is connected.

If increasing emergency lighting, need to be further added by 1 (same to phase) live wire, its effect is should to fill to battery in emergency light Electricity, also to ensure will not start emergency lighting (just starting when only having a power failure) when conventional light switch K is turned off, namely so-called three Wire type is connected.Existing emergency lighting is essentially all 3 line connected modes, and it, which is set, installs connection by national standard 17945-2010 《Fire emergency and evacuation indication system》Institute's specification.

Emergency lighting function is not limited in fire-fighting illumination in actual applications.For example, in the vast family in city, stopping Electricity may make your child to do one's assignment, and family can not have dinner or manage one's household, and more and more work transactions will be at home from now on Complete, family's emergency lighting more highlights important.In rural shop hotel, power failure can also make one in a rush one and arrange not open up.This It is required for safe and simple practical emergency lighting to provide help a bit.This emergency lighting precisely refers to standby lighting rather than disappeared Anti- emergency lighting.Furthermore emergency lighting is connected using three-wire type, increase is there is and lays 1 live wire, it is extremely difficult in implementation, if Meter examines that delivery receiving acceptance has strict demand, and especially decorated Environment space access is more difficult.Existing fire-fighting emergent Lighting requirement power failure is bright, and requires bright always, management and control (be easy to evacuate and put out a fire) during which must not be switched, if be in In-convenience in use (power failure on daytime also can be bright and closes continuous) is also uneconomical in front yard.

Since vast non-public occasion, such as family and independent dwelling, shop, sentry post is emergent inside the unit such as clinic Illumination, mainly standby lighting function rather than fire-fighting illumination function.If emergency lighting also can as general lighting lamp two lines Formula is directly accessed, and that is installed and used can be just more convenient.

Domestic twin wire emergency lighting field occurs in that twin wire spiral is met an urgent need bulb lamp in recent years.The actual work(of its emergency lighting Rate value can only rest on 1W (watt), the electric candle level of 2W (watt) left and right, and management and control stability is poor, and discharge prevention work(also can be difficult To realize (brightness is secretly untill battery-depletion)；Low-voltage and high-current, high voltage high power twin wire emergency light is more It can not release always.Although some producer's products nominally reach 5W 10w even more highs and met an urgent need power, do not surpass through investigation test Cross 1-2W.Its reason is to there is circuit parameter under two kinds of signal conditions of alternating current-direct current and mutually involve to open with amplifying circuit and high power Close the technological difficulties such as Circuit Matching difficulty.

The content of the invention

The utility model purpose is that a kind of twin wire emergency lighting inverter is provided on the premise of safety and stability specification Device, is coupled between civil power and illuminator and installs and uses, and meets similar household internal and independent non-public place should The demand of anxious illumination, had both facilitated and had installed, and do not changed decorative environment, the power and model of light source have saved electric energy, switch on wall again It is controllable.

In order to realize the above object the technical solution adopted in the utility model is：A kind of twin wire emergency lighting inversion electricity Source device：It is inverse by 2 wire types between urban network electricity source and emergency light including urban network electricity source, 2 wire type inverter power circuits and emergency light Power transformation source circuit is connected；

2 described wire type inverter power circuits include emergency cell, emergent inversion lighting circuit and Switching Power Supply charging electricity Road；

During normal illumination, urban network electricity source passes sequentially through 2 wire type on lines, switch K, the contact J1 of relay and emergency light and connected Connect, Switching Power Supply charging circuit charges to emergency cell, has by circuit guarantee on duty and does not occur emergent conversion during electricity；

During power failure, the upset of on duty road, the input of emergent inversion lighting circuit is connected with emergency cell, output end passes through The contact J2 of relay, lights emergency light.

It is of the present utility model to have technical effect that：Urban network electricity source, switch, special inverter and emergency light are formed into one kind Intelligent link body.Said from using angle：1st, there is very simple twin wire access, routinely illumination is bright for switch controls when having electricity Go out, the switch still can control emergency lighting light on and off during power failure.2nd, it is the Emergency Lighting Supply electric equipment products of small size independence, can To be easily loaded into light fixture or be fixed on by light fixture.So that the light fixture of various power and style can be rapidly converted into two Wire type connection is used.Even entirely without the light source and decorative effect for changing former room light source lamp.3rd, load is adapted to wider The selection change of power bracket, sets battery discharge protection link and load no-load protection link.Technically：1st, solve Conventional three-wire of having determined formula power cut signal once triggers the emergent lamp on/off of control, is changed into after twin wire has a power failure by many secondary controls of switch on wall The function of the emergent lamp on/off of system.2nd, twin wire power cut signal amplifying circuit is solved using double loop cut-off method to switch to amplify Circuit linking matching is difficult, and the emergent power of emergency light is difficult to the technology barrier amplified.3rd, the method solution of dual signal triggering is employed Switch on wall conducting during TW two wire emergency lighting of having determined causes cell cutoff protection electricity to circuit to light trigger signal always Road can not be added, and no-load protective circuit can not also be added, and light on and off control unstable etc. technical barrier.

Brief description of the drawings

Fig. 1 is control schematic diagram of the present utility model；

Fig. 2 is circuit theory diagrams of the present utility model.

Embodiment

Referring to the drawings, a kind of twin wire emergency lighting inverter power supply device, including urban network electricity source 10,2 wire type inverters Circuit 20 and emergency light 30, pass through the intelligent link of 2 wire type inverter power circuit 20 between urban network electricity source 10 and emergency light 30；

2 described wire type inverter power circuits 20 include emergency cell 21, emergent inversion lighting circuit 22 and Switching Power Supply Charging circuit 23；

During normal illumination, urban network electricity source 10 pass sequentially through 2 wire type on lines 11,12, switch K, the contact J1 of relay 24 with Emergency light 30 is connected, and Switching Power Supply charging circuit 23 charges to emergency cell 21, has by circuit guarantee on duty during electricity and does not occur Emergent conversion；

During power failure, the upset of on duty road, the input of emergent inversion lighting circuit 22 is connected with emergency cell 21, output end By the contact J2 of relay 24, emergency light 30 is lighted.

In addition, when lamp load damage or without access circuit, or emergency cell 21 electric discharge will to the greatest extent when, meet an urgent need inverter The overvoltage that the inside of circuit 22 is set, unloaded, the circuit operation such as discharge prevention, effectively protects battery, circuit element and light source are not It is damaged.

Further, described Switching Power Supply charging circuit 23 is the filling with over-current over-voltage protection of adjustable charging current Circuit.

Further, it is additionally provided with emergency control circuit 40 between described emergency light 30 between the two ends of emergency cell 21；

Emergency control circuit 40 includes the live wires of 110v to 220v zero and intervenes loop 41, meet an urgent need conversion and control loop 42, electricity Tank discharge protection circuit 43, load no-load protective circuit 43 and overvoltage crowbar 44；

Zero live wire intervene loop 41 by the internal resistance 13 in urban network electricity source 10, resistance R25, emergency cell 21, voltage-regulator diode W3, Electric capacity C12 and resistance R29 are sequentially connected composition；

Emergent conversion and control loop 42 include triode Q2 and Q3, diode D13, resistance R25, R28, R29, R30 and R34, urban network electricity resistance Sr, electric capacity C13, C12 and C18, optocoupler IC3 and voltage-regulator diode W3 compositions；Triode Q2, Q3 and electric capacity It is connected after C13 is in parallel with resistance R28 with triode Q2 base stage, triode Q2 colelctor electrode is connected with triode Q3 base stage, Resistance R25, diode D13 and urban network electricity resistance Sr are connected by resistance R29 with electric capacity C12 respectively, optocoupler IC3 and R30, R34 Parallel connection, voltage-regulator diode W3 one end is connected with triode Q2 base stage, the other end is connected with zero live wire intervention loop 41；

Battery discharge prevention circuit 43 is made up of triode Q6 and Q7, resistance R20, R21, R14, R29 and R19；

No-load protective circuit 43 is loaded by diode D15 and D16, resistance R23 and R14, optocoupler IC2 and triode Q7 groups Into；

Overvoltage crowbar 44 is made up of resistance R24 and R33 and diode D5.

Further, described emergency control circuit 40 also includes single-ended flyback on-off circuit 45；

Single-ended flyback on-off circuit 45 by oscillating circuit, resistance R30 and R33, triode Q8, transformer T1, electric capacity C8, C9 and C16 and diode D13 and D14 composition.

Further, the input voltage of described emergency light 30 be 10v-30v or 30v-70V or 70V-220v, it is emergent defeated The scope for going out power is 3W-10W or 10W-30W or 30W-60W.

Further, described emergency light 30 includes LED, fluorescent lamp and energy-conservation emergency light.Need exist for explanation It is that because light source is different, vibration and output circuit are slightly different, but triggering control principle is identical.

The utility model combined circuit structural representation Fig. 1 below, circuit theory Fig. 2, pith are made more specifically It is bright.

The relay that civil power 220v power supplys are passed through in switch K and 2 wire type inverter power circuits 20 by live wire 12 when city's net has electricity Device J close electrical contacts J1, emergency light 30 returns to civil power zero line 11 and completes loop, switch K controls the light on and off of lamp.At the same time, Civil power has to charge by emergency control circuit 40 to emergency cell 21 all the way.Emergency control circuit 40 is by 4 points of encirclements of ACDB One conventional typical switching power circuit, charging current is adjusted by R13 resistances and determined.(lithium battery has protection board Full of automatic stop, voltage is improved when nickel-cadmium cell charging is full, is transferred to floating punching) charging current stability is by elements such as W2, Q4, Q5, R12 The negative-feedback circuit of composition is determined.The working condition that charges is by luminous tube B (green to have electric instruction), R (red charging instruction) Y (yellow failures Indicate) show respectively.

At the same time, completed when civil power also has positive half cycle all the way by resistance R25, voltage-stabiliser tube W3, electric capacity C12, resistance R29 Loop, because W3 voltage stabilizings point is higher than the anode C point voltages of emergency cell 21, C12 is also charged to W3 voltage stabilizing values, and triode Q2 is reverse-biased Put, Q2, Q3 can not start all without conducting, emergency circuit, whole circuit is in state on duty.Electric current is from zero line 11 during negative half period Live wire 12 is returned through B points, R29, W3, R25, A point, ac circuit is completed.

Internal resistance Sr and CEFD are integrated by R25, R29 and external electrical network surround the circuit that circuit collectively constitutes and determine 2 lines The startup and shut-off of formula emergency lighting.Now illustrate one by one:When city's net has a power failure, when switch K is in connection, voltage warp on electric capacity C12 When R25 and source internal resistance Sr electric discharges are less than 21 terminal voltage of emergency cell, Q2 base stage reverse bias switchs to positive bias, and work is connected in Q2 loops Make.(Q2 base currents complete inclined along D27, R25, A point, switch K, the end of live wire 12, electric network synthetic internal resistance Sr, the end of zero line 11, R29 Put back into road), Q2 turns on its collector current injection Q3 formation Q3 positive biases, and its emitter stage output current is through R34 points after Q3 conductings For two-way, the negative terminal altogether of emergency cell 21 is arrived through R30 and optocoupler IC2 primary all the way, making optocoupler just side conducting, (secondary is also led immediately It is logical).Another road (has been turned on) through C14, optical coupling secondary edges, goes to trigger Q7 base stages, Q7 conductings.Q6 base loops are connected after Q7 conductings, Turn on Q6.The pulse oscillation circuit and single-end flyback switching power supply circuit of IC1 integrated packages composition are started after Q6 conductings, Relay J is started, its contact J2 is closed J1 and disengages, inverse-excitation type switch power-supply output point bright light source.(by element groups such as IC1 Into impulse generator oscillating circuit 60, its R31, R32, D22, C12 determine pulse frequency and pulse width, the output of 3 pin.By MOS The element such as FET Q8 and transformer T1, C11, D13, D14, C9 constitutes single-end flyback switching power supply circuit, and it exports electricity Pressure is by transformer T1, C9, and the component parameters such as C16 are determined.R33 and C8 are T1 self-inductions when switching to cut-off by turning on for elimination metal-oxide-semiconductor It is superimposed, protects it from breakdown in the high pressure that metal-oxide-semiconductor drain electrode is produced with leakage inductance.Here using single-end flyback switching power supply electricity Road, high conversion efficiency few with the low peripheral cell of its cost, the advantage exported compared with wide-voltage range.Q6 is lighted in lamp also to lead completely Q7 base currents provide self-locking by R14 after logical, maintain Q7Q6 constant conductions, ensure emergency circuit continuous firing.In emergency lighting Period, if shut-off switch on wall K, Q2 base circuit are interrupted, the first side dead electricity of optocoupler IC3, secondary ends immediately, causes Q7 cut-offs, Q6 Cut-off, oscillating circuit dead electricity, inversion stops, and lamp goes out.Switch is closed again optocoupler and obtains electric Q7 to be turned on once again, and lamp is bright.Work as cell voltage When being down to 0.8 times of battery rated voltage, (being determined by R14R19) Q7 cut-offs.Even if now switch K is closed, lamp still can not be by Light, reach protection battery purpose.D15D16R25 and optocoupler IC2 just collectively constitutes no-load protective circuit in side, when load is not accessed When optocoupler IC2 just side no current, its secondary open circuit, give Q7 to provide base current by R14 and interrupt, Q7 latching circuits are terminated, Q6 Also end immediately, vibration stopping light goes out.

The country occurs after 2 wire type spiral LED bulbs, and the other products reason that can't get out is that actual emergent power does not increase. The power circuit state that reason is when the various protection circuits of its circuit and lamp switch K closures adjustment of contradicting each other that do not increase is tired Difficulty, formation emergency light, which can not be turned off or put, not to work.Profound cause be the parameters of Q2 microampere order DC amplification circuits by with The parameter of 220 volts of voltage matches involves influence, and power net source internal resistance Sr changes influence, the reason institute such as operating point is unstable Cause.Triggering and dual shut-off measure are lighted so that relevant issues are solved at one stroke using dual through repetition test the utility model circuit Certainly.It is described below：K is connected during power failure, Q2, Q3 conducting, IC3 optocouplers just side work when lighting, after secondary is connected immediately, electricity Flow through R34, C14 triggering Q7 conductings.Because Q2 is in adjustment of the magnifying state (R25 numerical value is larger) through electrolysis C14, R34, still not It can reach Q7 fully on, then C6 strengthens triggering Q7 by R18 electric discharges after having a power failure, then Q7 be able to must be turned on reliably.(this measure Counteract on C6 when voltage has a power failure to disappear immediately, resisted by D10 can make the disadvantage of Q6 turn on delay because), this is touched to be dual Hair.It is electrolysed C14 electricity after conducting to be filled, this road electric current is essentially dropped out, and C6 also discharges totally.Q7 base currents are turned on immediately by Q6 R14 afterwards provides self-locking Q7, maintains lamp bright.When K switch is turned off, Q2, Q3 dead electricity, the first side dead electricity of IC3, IC3 secondary dead electricity immediately, Q7 base stages are close to cutout, but equally because Q2 is in magnifying state, and electric current very little can also work, thus it cannot be guaranteed that Q7Q6's can By shut-off, then now electrolysis C14 can at the beginning of by adjusting R30, IC3 side formed discharge loop, make Q7 base stages enter one it is reverse-biased Configuration state, can play completely switched off Q7, cut off Q6, reach reliable purpose of turning off the light, and this is dual cut-off measure.Switch K is opened again, C14 is by initial charge, and optocoupler is switched on, because D10 resistancing action disappears already on Q6 ground levels, and Q6 conductings will not be delayed by, Q7 Conducting is also just no longer problematic.Switch controls routinely illumination light on and off when having electricity by the utility model realization, this is opened during power failure Close and still can control emergency lighting light on and off, also adapt to selection of the load compared with broad power band and change, due to its circuit work shape State is very stable, so that the whole nine yards is provided with battery discharge protection link and load no-load protection link, will not occur lamp should Anxious time point not or close the phenomenon closed when going out and do not gone out.Emergent output circuit is connected to D15D16R25 and optocoupler IC2 just common group of sides Into no-load protective circuit, when load is not accessed, side no current at the beginning of optocoupler IC2, its secondary open circuit, base stage is provided by R14 to Q7 Circuit latching current is interrupted, and Q7 cut-offs, Q6 also ends immediately, and oscillating circuit stops, and emergency light goes out.

Claims (6)

1. a kind of twin wire emergency lighting inverter power supply device, it is characterised in that：Including urban network electricity source (10), 2 wire type inversions electricity Source circuit (20) and emergency light (30), pass through 2 wire type inverter power circuits (20) between urban network electricity source (10) and emergency light (30) Connection；

2 described wire type inverter power circuits (20) include emergency cell (21), emergent inversion lighting circuit (22) and switch electricity Source charging circuit (23)；

During normal illumination, urban network electricity source (10) pass sequentially through 2 wire type on lines (11,12), switch K, the contact J1 of relay (24) It is connected with emergency light (30), Switching Power Supply charging circuit (23) charges to emergency cell (21), has electricity by circuit guarantee on duty When emergent conversion does not occur；

During power failure, the upset of on duty road, the input of emergent inversion lighting circuit (22) is connected with emergency cell (21), output end By the contact J2 of relay (24), emergency light (30) is lighted.

2. twin wire emergency lighting inverter power supply device as claimed in claim 1, it is characterised in that：Described Switching Power Supply is filled Circuit (23) is the charging circuit with over-current over-voltage protection of adjustable charging current.

3. twin wire emergency lighting inverter power supply device as claimed in claim 1, it is characterised in that：The two of emergency cell (21) Between end emergency control circuit (40) is additionally provided between described emergency light (30)；

Emergency control circuit (40) includes the live wires of 110v to 220v zero intervention loop (41), meet an urgent need conversion and control loop (42), Battery discharge prevention circuit (43), load no-load protective circuit (43) and overvoltage crowbar (44)；

Zero live wire intervenes loop (41) by the internal resistance (13) of urban network electricity source (10), resistance R25, emergency cell (21), the pole of voltage stabilizing two Pipe W3, electric capacity C12 and resistance R29 are sequentially connected composition；

Emergent conversion and control loop (42) include triode Q2 and Q3, diode D13, resistance R25, R28, R29, R30 and R34, urban network electricity resistance Sr, electric capacity C13, C12 and C18, optocoupler IC3 and voltage-regulator diode W3 compositions；Triode Q2, Q3 and electric capacity It is connected after C13 is in parallel with resistance R28 with triode Q2 base stage, triode Q2 colelctor electrode is connected with triode Q3 base stage, Resistance R25, diode D13 and urban network electricity resistance Sr are connected by resistance R29 with electric capacity C12 respectively, optocoupler IC3 and R30, R34 Parallel connection, voltage-regulator diode W3 one end is connected with triode Q2 base stage, the other end is connected with zero live wire intervention loop (41)；

Battery discharge prevention circuit (43) is made up of triode Q6 and Q7, resistance R20, R21, R14, R29 and R19；

No-load protective circuit (43) is loaded by diode D15 and D16, resistance R23 and R14, optocoupler IC2 and triode Q7 groups Into；

Overvoltage crowbar (44) is made up of resistance R24 and R33 and diode D5.

4. twin wire emergency lighting inverter power supply device as claimed in claim 3, it is characterised in that：Described emergency flight control electricity Road (40) also includes single-ended flyback on-off circuit (45)；

Single-ended flyback on-off circuit (45) is by oscillating circuit, resistance R30 and R33, triode Q8, transformer T1, electric capacity C8, C9 Constituted with C16 and diode D13 and D14.

5. twin wire emergency lighting inverter power supply device as claimed in claim 1, it is characterised in that：Described emergency light (30) Input voltage be 10v-30v or 30v-70V or 70V-220v, the scope of emergent power output be 3W-10W or 10W-30W or 30W-60W。

6. twin wire emergency lighting inverter power supply device as claimed in claim 1, it is characterised in that：Described emergency light (30) Including LED, fluorescent lamp and energy-conservation emergency light.