CN204157104U - The uninterrupted emergency lighting system of subway LED - Google Patents
The uninterrupted emergency lighting system of subway LED Download PDFInfo
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- CN204157104U CN204157104U CN201420459521.9U CN201420459521U CN204157104U CN 204157104 U CN204157104 U CN 204157104U CN 201420459521 U CN201420459521 U CN 201420459521U CN 204157104 U CN204157104 U CN 204157104U
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- Prior art keywords
- led
- switching rectifier
- storage battery
- module
- rectifier
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- 238000012544 monitoring process Methods 0.000 claims abstract description 14
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- 229910052782 aluminium Inorganic materials 0.000 claims description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses the uninterrupted emergency lighting system of subway LED, comprise: the switching rectifier of a connection AC network, the alternating current of electrical network is become direct current by described switching rectifier, to power to charge in batteries with to LED, one storage battery be connected with switching rectifier, described storage battery is used for stored electric energy, and a LED, and described LED is connecting valve rectifier and storage battery respectively; Described switching rectifier comprises AC distribution module, some switching rectifier modules be arranged in parallel, and monitoring module; Wherein AC distribution module directly connects electrical network, the input of switching rectifier module connects the output of AC distribution module, described monitoring module connects local monitor and remote monitoring by communication interface, and connects AC distribution module and switching rectifier module by serial line interface.Have the advantages that cost is low, long service life, power savings are good, reliability is high.
Description
Technical field
The utility model relates to illuminator, is specifically related to the uninterrupted emergency lighting system of subway LED.
Background technology
In recent years, along with developing rapidly of national economy, China's automobile quantity sharply increases, and congestion in road is day by day serious, and Underground Rail Transit is all built in each big city---subway, and to alleviate traffic congestion phenomenon.Subway runs in underground throughout the year has very high requirement to illuminating lamp, not only requires economize on electricity, high brightness, long-life, also must ensure continuous illumination.
Conventional at present incandescent lamp, fluorescent lamp, high-pressure sodium lamp etc. are all powered by AC network.Also unavoidably there is power outage in the AC network of optimal design.In order to ensure underground continuous illumination, usually all must install Emergency Lighting Supply, this Emergency Lighting Supply is made up of parts such as rectifier, storage battery and inverters.During electrical network normal power supply, alternating current becomes direct current and charges a battery after rectifier, and when grid disruption is powered, storage battery becomes alternating current by inverter direct current, powers to lighting.This continuous illumination system cost is very high, and meanwhile, due to through repeatedly converting, power consumption is also larger.
Developed rapidly by the semi-conductor lighting lamp (LED) of DC power supply in recent years, this illuminating lamp is than incandescent lamp economize on electricity 90%, under Same Efficieney, LED is higher by more than 40% than the luminous intensity of common fluorescent lamp and high-pressure sodium lamp, and the life-span of LED can reach 100,000 hours, color rendering index can reach more than 80, far away higher than high-pressure sodium lamp.
Owing to adopting direct current constant electrical current, LED can not go out stroboscopic, has therefore become the best green lighting lawp of generally acknowledging countries in the world at present.The each station of subway adopts LED not only can save a large amount of electricity charge, but also can save a large amount of maintenance costs, also can guarantee lighting quality simultaneously.
Utility model content
The technical problems to be solved in the utility model is to provide the uninterrupted emergency lighting system of subway LED, comprise the LED of switching rectifier, valve-regulated lead-acid battery, band constant-current controller, have the advantages that cost is low, long service life, power savings are good, reliability is high.
For achieving the above object, the technical solution of the utility model is as follows:
The uninterrupted emergency lighting system of subway LED, comprising:
The switching rectifier of one connection AC network, the alternating current of electrical network is become direct current by described switching rectifier, to power to charge in batteries with to LED,
One storage battery be connected with switching rectifier, described storage battery is used for stored electric energy,
And a LED, described LED is connecting valve rectifier and storage battery respectively;
Described switching rectifier comprises AC distribution module, some switching rectifier modules be arranged in parallel, and monitoring module; Wherein AC distribution module directly connects electrical network, and the input of switching rectifier module connects the output of AC distribution module,
Described monitoring module connects local monitor and remote monitoring by communication interface, and connects AC distribution module and switching rectifier module by serial line interface.
In a preferred embodiment of the present utility model, described LED is connected with constant-current drive circuit, and described constant-current drive circuit comprises an integrated circuit IRS2540, the current feedback pin I of described integrated circuit IRS2540
fBconnect LED and current sampling resistor R
cSnode; The ENN pin of described integrated circuit IRS2540 connects open loop protection circuit, and described open loop protection circuit comprises a diode D
oV, and with diode D
oVoutput connect parallel resistance R
oV1and R
oV2; The HO pin connecting valve Correctional tube M of described integrated circuit IRS2540
1, and switch Correctional tube M
1driven by high-end boostrap circuit and carry out high-frequency work;
Also comprise by diode D
vCC, electric capacity C
vCCwith diode D
cLAMPthe power circuit of composition, it provides supply voltage for integrated circuit IRS2540.
In a preferred embodiment of the present utility model, the lampshade that described LED adopts metallic aluminium to make.
In a preferred embodiment of the present utility model, valve-regulated lead-acid battery selected by described storage battery.
In a preferred embodiment of the present utility model, described storage battery adopts two groups, and do primary for one group, another group is done for subsequent use, and two group storage batteries form redundancy structure.
By technique scheme, the beneficial effects of the utility model are:
The utility model adopts LED, and can economize on electricity 40%, therefore the capacity of rectifier and storage battery all can reduce by 40%, and the cost of such system can also reduce by 20%, decreases linear transformation simultaneously, and system effectiveness and reliability improve greatly;
In addition, LED can save AC/DC conversion fraction directly by powered by direct current, and the cost of LED control circuit reduces greatly;
The reliability effect of AC/DC transfer pair LED is maximum simultaneously, and save this part circuit, the reliability of every LED will improve greatly, and the life-span also will extend greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural principle block diagram of the present utility model.
Fig. 2 is the structural principle block diagram of switching rectifier of the present utility model.
Fig. 3 is the circuit diagram of constant-current drive circuit of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
With reference to the uninterrupted emergency lighting system of Fig. 1, subway LED, comprising:
The switching rectifier of one connection AC network, the alternating current of electrical network is become direct current by described switching rectifier, to power to charge in batteries with to LED,
One storage battery be connected with switching rectifier, described storage battery is used for stored electric energy,
And a LED, described LED is connecting valve rectifier and storage battery respectively;
The Main Function of switching rectifier is that the alternating current of electrical network is become direct current, to power to charge in batteries with to LED.Each subway station configures a high efficiency switch-type rectifier.
When storage battery starts to charge, this switching rectifier exports constant current, when battery voltage reaches setting, switching rectifier exports constant voltage automatically, supply LED constant voltage on the one hand, on the other hand for accumulators floating charge electric current, guarantee in the course of work, storage battery remains full charge state.
The Main Function of storage battery is stored electric energy, when mains supply is normal, switching rectifier charges a battery, once there is power failure in electrical network, storage battery can be powered to LED immediately, according to installing the power of LED in subway station and requiring to ensure the lighting hours after having a power failure, select the capacity of required storage battery.The kind of storage battery is a lot, but needed for each subway station, the capacity of storage battery is larger, therefore should select the valve-regulated lead-acid battery that price is lower.
And uninterrupted in order to ensure illumination, storage battery preferably selects two groups, and do primary for one group, another group is done for subsequent use, and two group storage batteries form redundancy structure.
Above-mentioned storage battery adopts method justifier acid accumulator.
With reference to Fig. 2, switching rectifier comprises AC distribution module, some switching rectifier modules be arranged in parallel, and monitoring module; Wherein AC distribution module is directly connected in electrical network, and the input of switching rectifier module connects the output of AC distribution module,
Described monitoring module connects local monitor and remote monitoring by communication interface, and connects AC distribution module and switching rectifier module by serial line interface.
In order to ensure switching rectifier reliably working, multiple switching rectifier module parallel operation, and adopt N+1 redundancy electric power supply system.In the course of work, even if some switching rectifier modules break down, other modules still can ensure power supply.
Monitoring module can the various parameters of pilot switch rectifier, storage battery and LED.By communication interface, Subway Control Center can implement remote monitoring to the switching rectifier in each subway station, storage battery, LED.
With reference to Fig. 3, LED is connected with constant-current drive circuit, and the effect of the LED of band constant-current drive circuit is that DC input voitage is transformed to constant current needed for LED, ensures the safe and reliable work of LED.
Subway station area is very large, adopt low-voltage direct technology of transmission of electricity, power transmission line will produce certain pressure drop, therefore the voltage be added in every LED will have certain fluctuation, and especially have no progeny in mains supply, the mains ripple of storage battery is larger, therefore must ensure that the electric current of all LED all keeps constant by constant-current drive circuit, LED also needs to install the radiator with certain area, could reduce the working temperature of LED, ensures that the life-span of LED reaches more than 50,000 hours; The lampshade that general LED adopts metallic aluminium to make, such lampshade also can realize the heat sinking function of LED.
Described constant-current drive circuit comprises an integrated circuit IRS2540, the current feedback pin I of described integrated circuit IRS2540
fBconnect LED and current sampling resistor R
cSnode; The ENN pin of described integrated circuit IRS2540 connects open loop protection circuit, and described open loop protection circuit comprises a diode D
oV, and with diode D
oVoutput connect parallel resistance R
oV1and R
oV2; The HO pin connecting valve Correctional tube M of described integrated circuit IRS2540
1, and switch Correctional tube M
1driven by high-end boostrap circuit and carry out high-frequency work;
Also comprise by diode D
vCC, electric capacity C
vCCwith diode D
cLAMPthe power circuit of composition, it provides supply voltage for integrated circuit IRS2540.
Above-mentioned constant-current drive circuit has wide input voltage range, control efficiency advantages of higher.
M in figure
1for switch Correctional tube, D
1for fly-wheel diode, L
1for afterflow inductance, R
cSfor current sampling resistor.
When flowing through the curent change of LED, current sampling resistor R
cStwo ends step-down change, this voltage sends into the current feedback pin I of integrated circuit IRS2540
fB, after comparing with the reference voltage of inside, control signal changes switch Correctional tube M
1output pulse duty factor, and pass through sustained diode
1, afterflow inductance L
1guarantee the current constant of LED.
Bootstrap diode D in figure
bOOTwith bootstrap capacitor C
bOOTform high-end boostrap circuit, driving switch Correctional tube M
1high-frequency work.
Diode D
vCC, electric capacity C
vCCwith diode D
cLAMPcomposition power circuit, provides supply voltage to integrated circuit IRS2540.
Diode D
oV, resistance R
oV1, R
oV2composition open loop protection circuit, by diode D
eN1add pulse signal, can LED be turned off, also can adjust LED brightness.
The maximum feature of this system greatly reduces the initial investment of continuous illumination system, because eliminate the most expensive high-power inverter of price in this novel emergency illuminator, system cost approximately reduces by 40%, adopt LED, 40% can be economized on electricity, therefore the capacity of rectifier and storage battery all can reduce by 40%, the cost of such system can also reduce by 20%, decrease linear transformation simultaneously, system effectiveness and reliability improve greatly, in addition, LED can save AC/DC conversion fraction directly by powered by direct current, the cost of LED control circuit reduces greatly, the reliability effect of AC/DC transfer pair LED is maximum simultaneously, save this part circuit, the reliability of every LED will improve greatly, life-span also will extend greatly.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the uninterrupted emergency lighting system of subway LED, is characterized in that, comprising:
The switching rectifier of one connection AC network, the alternating current of electrical network is become direct current by described switching rectifier, to power to charge in batteries with to LED,
One storage battery be connected with switching rectifier, described storage battery is used for stored electric energy,
And a LED, described LED is connecting valve rectifier and storage battery respectively;
Described switching rectifier comprises AC distribution module, some switching rectifier modules be arranged in parallel, and monitoring module; Wherein AC distribution module directly connects electrical network, and the input of switching rectifier module connects the output of AC distribution module,
Described monitoring module connects local monitor and remote monitoring by communication interface, and connects AC distribution module and switching rectifier module by serial line interface.
2. the uninterrupted emergency lighting system of subway LED according to claim 1, it is characterized in that, described LED is connected with constant-current drive circuit, and described constant-current drive circuit comprises an integrated circuit IRS2540, the current feedback pin I of described integrated circuit IRS2540
fBconnect LED and current sampling resistor R
cSnode; The ENN pin of described integrated circuit IRS2540 connects open loop protection circuit, and described open loop protection circuit comprises a diode D
oV, and with diode D
oVoutput connect parallel resistance R
oV1and R
oV2; The HO pin connecting valve Correctional tube M of described integrated circuit IRS2540
1, and switch Correctional tube M
1driven by high-end boostrap circuit and carry out high-frequency work;
Also comprise by diode D
vCC, electric capacity C
vCCwith diode D
cLAMPthe power circuit of composition, it provides supply voltage for integrated circuit IRS2540.
3. the uninterrupted emergency lighting system of subway LED according to claim 1, is characterized in that, the lampshade that described LED adopts metallic aluminium to make.
4. the uninterrupted emergency lighting system of subway LED according to claim 1, it is characterized in that, valve-regulated lead-acid battery selected by described storage battery.
5. the uninterrupted emergency lighting system of subway LED according to claim 1 or 4, it is characterized in that, described storage battery adopts two groups, and do primary for one group, another group is done for subsequent use, and two group storage batteries form redundancy structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459521.9U CN204157104U (en) | 2014-08-14 | 2014-08-14 | The uninterrupted emergency lighting system of subway LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459521.9U CN204157104U (en) | 2014-08-14 | 2014-08-14 | The uninterrupted emergency lighting system of subway LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204157104U true CN204157104U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420459521.9U Expired - Fee Related CN204157104U (en) | 2014-08-14 | 2014-08-14 | The uninterrupted emergency lighting system of subway LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204157104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806955A (en) * | 2015-04-30 | 2015-07-29 | 苏州承乐电子科技有限公司 | Uninterrupted emergency lighting system |
| CN112350423A (en) * | 2020-11-04 | 2021-02-09 | 合肥联信电源有限公司 | Emergency lighting controller with redundant power supply |
-
2014
- 2014-08-14 CN CN201420459521.9U patent/CN204157104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806955A (en) * | 2015-04-30 | 2015-07-29 | 苏州承乐电子科技有限公司 | Uninterrupted emergency lighting system |
| CN112350423A (en) * | 2020-11-04 | 2021-02-09 | 合肥联信电源有限公司 | Emergency lighting controller with redundant power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20180814 |