CN104066222B - Light fixture emergency supply circuit - Google Patents
Light fixture emergency supply circuit Download PDFInfo
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- CN104066222B CN104066222B CN201310092512.0A CN201310092512A CN104066222B CN 104066222 B CN104066222 B CN 104066222B CN 201310092512 A CN201310092512 A CN 201310092512A CN 104066222 B CN104066222 B CN 104066222B
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Abstract
A kind of light fixture emergency supply circuit, for civil power is stopped power supply when, controls power storage module and powers light fixture, including city's electric control module, electric power storage control module, reversal connection module and switch module；Light fixture emergency supply circuit controls civil power and power storage module powering mode between the two by city's electric control module and electric power storage control module.Specifically, when civil power normal power supply, city's electric control module controls switch module and disconnects the connection between power storage module and load, by civil power directly to load supplying.When civil power is stopped power supply, city's electric control module controls switch module connection power storage module and load, and controlled power storage module to load supplying by electric power storage control module, by reversal connection module cut-off power storage module, city's electric control module is powered simultaneously so that power storage module can continue for load supplying.It is achieved thereby that civil power and the automatic switchover of power storage module powering mode.
Description
Technical field
The present invention relates to emergency circuit, particularly relate to a kind of automatic switchover civil power and power storage module powering mode
Light fixture emergency supply circuit.
Background technology
Emergency light: the general name of the light fixture of emergency lighting.Fire emergency system mainly includes accident emergency
Illumination, escape hatch mark and indicator lamp, be when breaking out of fire after normal illumination dump, guides quilt
It is stranded evacuating personnel or launches fire fighting and rescue action and arrange.
In prior art, emergency circuit can be battery charging, during municipal power failure, battery discharge when civil power is normal
Power for successive load circuit, drive bulb light, it is achieved emergency function.Although this circuit can complete to meet an urgent need
Function of supplying power, but there will be problem in practice and in installing, in installation process, civil power is in disconnection shape
State, if circuit connects battery, light fixture will be lighted by driving, affects installation personnel and judges.If at battery
After fill a switch, cannot realize automatically switching in normal work.
Summary of the invention
Based on this, it is provided that a kind of civil power light fixture emergency supply circuit with power storage module powering mode that automatically switches.
A kind of light fixture emergency supply circuit, for civil power is stopped power supply when, controls power storage module to lamp
Tool power supply, including city's electric control module, electric power storage control module, reversal connection module and switch module；
The input of described city electric control module is used for electrically connecting with mains supply, described city electric control module
Output electrically connects with the control end of described switch module, the earth terminal ground connection of described city electric control module, institute
The input of the dividing potential drop end and described reversal connection module of stating city's electric control module electrically connects, described reversal connection module defeated
Go out end to electrically connect with the input of described city electric control module；
The input of described electric power storage control module is used for electrically connecting with the positive pole of described power storage module, described electric power storage
The output of control module is electrically connected with the input of described reversal connection module and the input of described switch module respectively
Connecing, the earth terminal ground connection of described electric power storage control module, the output of described switch module is used for connecting load；
Wherein, described city electric control module, when mains supply is normal, is used for controlling described electric power storage control module
And the conducting between described power storage module, and control the cut-off of described switch module, mains supply powers to the load,
Described switch module disconnects the connection between described power storage module and load；
When mains supply has a power failure, described city electric control module controls the conducting of described switch module, described electric power storage
Module is connected with described switch module by described electric power storage control module, and described power storage module passes through described switch
Module powers to the load, and described reversal connection module is used for ending described power storage module and supplies to described city electric control module
Electricity.
Wherein in an embodiment, also include the power module electrically connected with city's electric control module, described electricity
Source module for being converted into the DC voltage needed for described city electric control module and load by civil power.
Wherein in an embodiment, described power module includes transformer T, rectifier bridge BD and filter capacitor
C1, described transformer T are sequentially connected electrically with described rectifier bridge BD, described filter capacitor C1 and described rectification
The output of bridge BD is in parallel, the positive pole of described filter capacitor C1 and the points of common connection of described rectifier bridge BD
Electrically connect with the input of described city electric control module.
Wherein in an embodiment, described city electric control module include divider resistance R1, divider resistance R2,
Divider resistance R3, divider resistance R4, triode Q1 and triode Q2；
Described divider resistance R1 and described divider resistance R2 is series between mains supply and earth terminal, described
The points of common connection of divider resistance R1 and described divider resistance R2 electrically connects with the base stage of described triode Q1；
Described divider resistance R3 and described divider resistance R4 is series at input and the ground connection of described reversal connection module
Between end, the points of common connection of described divider resistance R3 and described divider resistance R4 respectively with described triode
The colelctor electrode of Q1 and the base stage electrical connection of described triode Q2, the emitter stage of described triode Q1 and described three
The equal ground connection of emitter stage of pole pipe Q2, the colelctor electrode of described triode Q2 respectively with the control of described switch module
End and load electrical connection.
Wherein in an embodiment, described city electric control module also includes filter capacitor C2, described filtered electrical
Hold between base stage and the emitter stage that C2 is parallel to described triode Q1.
Wherein in an embodiment, described city electric control module also includes filter capacitor C3, described filtered electrical
Hold between colelctor electrode and the emitter stage that C3 is parallel to described triode Q1.
Wherein in an embodiment, described power storage module includes battery BT1, described battery BT1's
Positive pole electrically connects with the input of described electric power storage control module, the minus earth of described battery BT1.
Wherein in an embodiment, described electric power storage control module include divider resistance R6, divider resistance R7,
Filter capacitor C4, voltage-stablizer U2, diode D5 and relay K 1；
Described divider resistance R6 and described divider resistance R7 is series at input and the ground connection of described reversal connection module
Between end, the points of common connection of described divider resistance R6 and described divider resistance R7 and described voltage-stablizer U2
Test side electrical connection, the output of described voltage-stablizer U2 electrically connects with the positive pole of described diode D5, institute
The input of the negative pole and described reversal connection module of stating diode D5 electrically connects；Described filter capacitor C4 is parallel to
Between test side and the earth terminal of described voltage-stablizer U2；The electronic coil of described relay K 1 is parallel to described
The two ends of diode D5, normal open switch one end of described relay K 1 is electrically connected with the positive pole of described power storage module
Connecing, the other end electrically connects with the input of described reversal connection module.
Wherein in an embodiment, described reversal connection module includes diode D1, and described diode D1 is just
Pole electrically connects with the input of described city electric control module, and the negative pole of described diode D1 controls with described electric power storage
The output electrical connection of module.
Wherein in an embodiment, described switch module includes FET Q3 and divider resistance R5；
Described divider resistance R5 one end electrically connects with the grid of described FET Q3, described divider resistance R5
One end electrically connects with the source electrode of described FET Q3；
The grid of described FET Q3 electrically connects with the output of described city electric control module, described field-effect
Pipe Q3 drain electrode all loads the output of electrical connection, the source electrode of described FET Q3 and described electric power storage control module
End electrical connection.
Above-mentioned light fixture emergency supply circuit controls civil power and electric power storage by city's electric control module and electric power storage control module
Module powering mode between the two.Specifically, when civil power normal power supply, city's electric control module controls switch
Module disconnects the connection between power storage module and load, by civil power directly to load supplying.Stop supplying at civil power
During electricity, city's electric control module controls switch module connection power storage module and load, and by electric power storage control module control
City's electric control module, to load supplying, is powered by reversal connection module cut-off power storage module by power storage module processed simultaneously,
Make that power storage module can continue for load supplying.It is achieved thereby that civil power and power storage module powering mode
Automatically switch.
Accompanying drawing explanation
Fig. 1 is the module map of light fixture emergency supply circuit；
Fig. 2 is the schematic diagram of light fixture emergency supply circuit.
Detailed description of the invention
As it is shown in figure 1, be the module map of light fixture emergency supply circuit.
A kind of light fixture emergency supply circuit, for civil power is stopped power supply when, controls power storage module 109
Light fixture is powered, including city's electric control module 101, electric power storage control module 103, reversal connection module 107 and switch
Module 105.
The input of described city electric control module 101 is used for electrically connecting with mains supply, described city's electric control mould
The output of block 101 electrically connects with the control end of described switch module 105, described city electric control module 101
Earth terminal ground connection, the input of the dividing potential drop end of described city electric control module 101 and described reversal connection module 107
Electrical connection, the output of described reversal connection module 107 electrically connects with the input of described city electric control module 101.
The input of described electric power storage control module 103 is used for electrically connecting with the positive pole of described power storage module 109,
The output of described electric power storage control module 103 respectively with input and the described switch of described reversal connection module 107
The input electrical connection of module 105, the earth terminal ground connection of described electric power storage control module 103, described switching molding
The output of block 105 is used for connecting load.
City's electric control module 101, for having civil power to input when, controls electric power storage control module 103 and connects
Power storage module 109 and switch module 105, and control switch module 105 and end.Thus, power storage module 109
Do not connect with between load.Power storage module 109 is not to load supplying.Civil power powers to the load.
When civil power is stopped power supply, city's electric control module 101 controls electric power storage control module 103 and connects electric power storage mould
Block 109 and switch module 105, and control switch module 105 and turn on.Thus, power storage module 109 and load
Between connect.Power storage module 109 is to load supplying.
Electric power storage control module 103 is for when civil power normally inputs, by city's electric control module 101 output
Voltage turn-on.When civil power stops input, have been turned on for electric power storage control module 103, and power storage module
Electric power storage control module 103 is being powered by 109 always, thus, not by civil power after electric power storage control module 103 conducting
Impact and constantly on, and then reach the conducting controlling power storage module 109 with switch module 105.
Switch module 105 by self conducting and cut-off control connection between power storage module 109 and load with
Cut-off, concrete, when switch module 105 turns on, power storage module 109 connects with load, power storage module 109
To load supplying；When switch module 105 ends, end between power storage module 109 and load, power storage module
109 to load supplying.
Reversal connection module 107 is for stopping power supply at civil power, and cut-off power storage module 109 is to city's electric control module 101
Power supply.When having voltage to input due to city's electric control module 101, switch module 105 can be ended, cause electric power storage without
Method is connected with load, and the voltage of power storage module 109 cannot make after the dividing potential drop of city's electric control module 101
The normal work of load, thus cause whole light fixture emergency supply circuit normally to work.
Wherein, described city electric control module 101, when mains supply is normal, is used for controlling described electric power storage and controls
Conducting between module 103 and described power storage module 109, and control described switch module 105 and end, city
Electricity power supply powers to the load, and described switch module 105 disconnects the company between described power storage module 109 and load
Connect.
When mains supply has a power failure, described city electric control module 101 controls described switch module 105 and turns on,
Described power storage module 109 is connected with described switch module 105 by described electric power storage control module 103, described
Power storage module 109 is powered to the load by described switch module 105, and described reversal connection module 107 is used for ending
Described power storage module 109 is powered to described city electric control module 101.
Light fixture emergency supply circuit also includes the power module 111 electrically connected with city's electric control module 101, described
Power module 111 for being converted into the DC voltage needed for described city electric control module 101 and load by civil power.
Incorporated by reference to Fig. 2.
Power module 111 includes transformer T, rectifier bridge BD and filter capacitor C1, described transformer T with
Described rectifier bridge BD is sequentially connected electrically, and described filter capacitor C1 is in parallel with the output of described rectifier bridge BD,
The points of common connection of the positive pole of described filter capacitor C1 and described rectifier bridge BD and described city electric control module
The input electrical connection of 101.
City's electric control module 101 includes divider resistance R1, divider resistance R2, divider resistance R3, dividing potential drop electricity
Resistance R4, triode Q1 and triode Q2.
Described divider resistance R1 and described divider resistance R2 is series between mains supply and earth terminal, described
The points of common connection of divider resistance R1 and described divider resistance R2 electrically connects with the base stage of described triode Q1.
Described divider resistance R3 and described divider resistance R4 be series at described reversal connection module 107 input and
Between earth terminal, the points of common connection of described divider resistance R3 and described divider resistance R4 is respectively with described three
The base stage electrical connection of the colelctor electrode of pole pipe Q1 and described triode Q2, the emitter stage of described triode Q1 and
The equal ground connection of emitter stage of described triode Q2, the colelctor electrode of described triode Q2 respectively with described switch module
The control end electrical connection of 105.
City's electric control module 101 also includes that filter capacitor C2, described filter capacitor C2 are parallel to described three poles
Between base stage and the emitter stage of pipe Q1.
City's electric control module 101 also includes that filter capacitor C3, described filter capacitor C3 are parallel to described three poles
Between colelctor electrode and the emitter stage of pipe Q1.
Power storage module 109 includes that battery BT1, the positive pole of described battery BT1 control mould with described electric power storage
The input electrical connection of block 103, the minus earth of described battery BT1.
Electric power storage control module 103 includes divider resistance R6, divider resistance R7, filter capacitor C4, voltage-stablizer
U2, diode D5 and relay K 1.
Described divider resistance R6 and described divider resistance R7 be series at the input of described reversal connection module 107 with
Between earth terminal, the points of common connection of described divider resistance R6 and described divider resistance R7 and described voltage-stablizer
The test side electrical connection of U2, the output of described voltage-stablizer U2 electrically connects with the positive pole of described diode D5,
The negative pole of described diode D5 electrically connects with the input of described reversal connection module 107；Described filter capacitor C4
It is parallel between test side and the earth terminal of described voltage-stablizer U2；The electronic coil of described relay K 1 is in parallel
In the two ends of described diode D5, normal open switch one end of described relay K 1 and described power storage module 109
Positive pole electrical connection, the other end electrically connects with the input of described reversal connection module 107.
Reversal connection module 107 includes diode D1, the positive pole of described diode D1 and described city electric control module
The input electrical connection of 101, the negative pole of described diode D1 and the output of described electric power storage control module 103
Electrical connection.
Switch module 105 includes FET Q3 and divider resistance R5.
Described divider resistance R5 one end electrically connects with the grid of described FET Q3, described divider resistance R5
One end electrically connects with the source electrode of described FET Q3.The grid of described FET Q3 is automatically controlled with described city
The output electrical connection of molding block 101, described FET Q3 drain electrode all loads electrical connection, described field-effect
The source electrode of pipe Q3 electrically connects with the output of described electric power storage control module 103.FET Q3 is P-channel
FET.
Based on above-mentioned all embodiments, the operation principle of light fixture emergency supply circuit is as follows:
Civil power is via the DC voltage of amount of exports sizing after transformer T and rectifier bridge BD Transformer Rectifier, same
Time filter capacitor C1 DC voltage is filtered, exclude the interference signal.Divider resistance R1 and divider resistance
R2 carries out dividing potential drop to DC voltage, and the direct voltage output after dividing potential drop is to the base stage of triode Q1, triode
Q1 turns on, thus the collector voltage of triode Q1 is low level, and the colelctor electrode of triode Q1 and three poles
The base stage of pipe Q2 connects, and triode Q2 ends.After triode Q2 cut-off, the current collection of triode Q2 is extremely
High level.The colelctor electrode of triode Q2 is connected with the grid of FET Q3, thus the field-effect of P-channel
Pipe Q3 ends, and battery BT1 cannot be connected with load, thus load is by mains-supplied.
When civil power is stopped power supply, power module 111 Non voltage output, thus triode Q1 cut-off.Battery
BT1 is connected by the base stage of divider resistance R3 and triode Q2, and triode Q2 turns on, triode Q2
Current collection extremely low level, thus the grid of FET Q3 is also low level, and FET Q3 turns on.
Battery BT1 is connected with load by FET Q3, and battery BT1 is to load supplying.
Civil power is when normally working, and the DC voltage of power module 111 output passes through diode D1 to battery
BT1 charges.
Above-mentioned light fixture emergency supply circuit controls city by city's electric control module 101 and electric power storage control module 103
Electricity and power storage module 109 powering mode between the two.Specifically, when civil power normal power supply, city's electric control
Module 101 controls switch module 105 and disconnects the connection between power storage module 109 and load, direct by civil power
To load supplying.When civil power is stopped power supply, city's electric control module 101 controls switch module 105 connection and stores
Electricity module 109 and load, and controlled power storage module 109 to load supplying by electric power storage control module 103, with
Time ended power storage module 109 by reversal connection module 107 city's electric control module 101 powered so that power storage module
109 can continue for load supplying.It is achieved thereby that automatically the cutting of civil power and power storage module 109 powering mode
Change.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (7)
1. a light fixture emergency supply circuit, for civil power is stopped power supply when, controls power storage module and powers light fixture, it is characterised in that include city's electric control module, electric power storage control module, reversal connection module and switch module；
The input of described city electric control module is for electrically connecting with mains supply, the output of described city electric control module electrically connects with the control end of described switch module, the earth terminal ground connection of described city electric control module, the dividing potential drop end of described city electric control module electrically connects with the input of described reversal connection module, and the output of described reversal connection module electrically connects with the input of described city electric control module；
The input of described electric power storage control module is for electrically connecting with the positive pole of described power storage module, the output of described electric power storage control module electrically connects with the input of described reversal connection module and the input of described switch module respectively, the earth terminal ground connection of described electric power storage control module, the output of described switch module is used for connecting load；
Wherein, described city electric control module, when mains supply is normal, for controlling the conducting between described electric power storage control module and described power storage module, and controls the cut-off of described switch module, mains supply powers to the load, and described switch module disconnects the connection between described power storage module and load；
When mains supply has a power failure, described city electric control module controls the conducting of described switch module, described power storage module is connected with described switch module by described electric power storage control module, described power storage module is powered to the load by described switch module, and described reversal connection module is used for ending described power storage module and powers to described city electric control module；
Described city electric control module includes divider resistance R1, divider resistance R2, divider resistance R3, divider resistance R4, triode Q1 and triode Q2；
Described divider resistance R1 and described divider resistance R2 is series between mains supply and earth terminal, and the points of common connection of described divider resistance R1 and described divider resistance R2 electrically connects with the base stage of described triode Q1；
Described divider resistance R3 and described divider resistance R4 is series between input and the earth terminal of described reversal connection module, the points of common connection of described divider resistance R3 and described divider resistance R4 base stage with the colelctor electrode of described triode Q1 and described triode Q2 respectively electrically connects, the emitter stage of described triode Q1 and the equal ground connection of emitter stage of described triode Q2, the colelctor electrode of described triode Q2 electrically connects with control end and the load of described switch module respectively；
Described switch module includes FET Q3 and divider resistance R5；
Described divider resistance R5 one end electrically connects with the grid of described FET Q3, and described divider resistance R5 one end electrically connects with the source electrode of described FET Q3；
The grid of described FET Q3 electrically connects with the output of described city electric control module, and described FET Q3 drain electrode electrically connects with load, and the source electrode of described FET Q3 electrically connects with the output of described electric power storage control module；
When civil power is stopped power supply, power module Non voltage output, thus triode Q1 cut-off；Battery BT1 is connected by the base stage of divider resistance R3 and triode Q2, and triode Q2 turns on, the current collection of triode Q2 extremely low level, thus the grid of FET Q3 is also low level, and FET Q3 turns on；Battery BT1 is connected with load by FET Q3, and battery BT1 is to load supplying；
Described electric power storage control module includes divider resistance R6, divider resistance R7, filter capacitor C4, voltage-stablizer U2, diode D5 and relay K 1；
Described divider resistance R6 and described divider resistance R7 is series between input and the earth terminal of described reversal connection module, the points of common connection of described divider resistance R6 and described divider resistance R7 electrically connects with the test side of described voltage-stablizer U2, the output of described voltage-stablizer U2 electrically connects with the positive pole of described diode D5, and the negative pole of described diode D5 electrically connects with the input of described reversal connection module；Described filter capacitor C4 is parallel between test side and the earth terminal of described voltage-stablizer U2；The electronic coil of described relay K 1 is parallel to the two ends of described diode D5, and normal open switch one end of described relay K 1 electrically connects with the positive pole of described power storage module, and the other end electrically connects with the input of described reversal connection module；
When civil power is stopped power supply, city's electric control module controls electric power storage control module connection power storage module and switch module, and controls switch module conducting；Thus, connect between power storage module with load；Power storage module is to load supplying；
Electric power storage control module is used for when civil power normally inputs, the voltage turn-on exported by city's electric control module；When civil power stops input, have been turned on for electric power storage control module, and electric power storage control module is being powered by power storage module always, thus, do not affected by civil power and constantly on after the conducting of electric power storage control module, and then reached the conducting controlling power storage module with switch module.
Light fixture emergency supply circuit the most according to claim 1, it is characterised in that also include the power module electrically connected with city's electric control module, described power module for being converted into the DC voltage needed for described city electric control module and load by civil power.
Light fixture emergency supply circuit the most according to claim 2, it is characterized in that, described power module includes transformer T, rectifier bridge BD and filter capacitor C1, described transformer T is sequentially connected electrically with described rectifier bridge BD, described filter capacitor C1 is in parallel with the output of described rectifier bridge BD, and the positive pole of described filter capacitor C1 electrically connects with the input of described city electric control module with the points of common connection of described rectifier bridge BD.
Light fixture emergency supply circuit the most according to claim 1, it is characterised in that described city electric control module also includes that filter capacitor C2, described filter capacitor C2 are parallel between base stage and the emitter stage of described triode Q1.
Light fixture emergency supply circuit the most according to claim 1, it is characterised in that described city electric control module also includes that filter capacitor C3, described filter capacitor C3 are parallel between colelctor electrode and the emitter stage of described triode Q1.
Light fixture emergency supply circuit the most according to claim 1, it is characterised in that described power storage module includes that battery BT1, the positive pole of described battery BT1 electrically connect with the input of described electric power storage control module, the minus earth of described battery BT1.
Light fixture emergency supply circuit the most according to claim 1, it is characterized in that, described reversal connection module includes that diode D1, the positive pole of described diode D1 electrically connect with the input of described city electric control module, and the negative pole of described diode D1 electrically connects with the output of described electric power storage control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092512.0A CN104066222B (en) | 2013-03-21 | 2013-03-21 | Light fixture emergency supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092512.0A CN104066222B (en) | 2013-03-21 | 2013-03-21 | Light fixture emergency supply circuit |
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| Publication Number | Publication Date |
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| CN104066222A CN104066222A (en) | 2014-09-24 |
| CN104066222B true CN104066222B (en) | 2016-09-07 |
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| CN201310092512.0A Expired - Fee Related CN104066222B (en) | 2013-03-21 | 2013-03-21 | Light fixture emergency supply circuit |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113036896A (en) * | 2019-12-24 | 2021-06-25 | 中兴通讯股份有限公司 | Power supply circuit and power supply device |
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| CN101505566A (en) * | 2009-03-24 | 2009-08-12 | 马相国 | Control apparatus for LED tri-control lamp |
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2013
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| CN101505566A (en) * | 2009-03-24 | 2009-08-12 | 马相国 | Control apparatus for LED tri-control lamp |
| CN101932153A (en) * | 2009-06-24 | 2010-12-29 | 海洋王照明科技股份有限公司 | LED emergency light circuit supplied by wide voltage power supply |
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| CN101765274A (en) * | 2010-01-29 | 2010-06-30 | 海洋王照明科技股份有限公司 | LED lamp and drive circuit |
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| CN104066222A (en) | 2014-09-24 |
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