CN202663186U - Power supply module of railway communication signal system - Google Patents
Power supply module of railway communication signal system Download PDFInfo
- Publication number
- CN202663186U CN202663186U CN2012203331977U CN201220333197U CN202663186U CN 202663186 U CN202663186 U CN 202663186U CN 2012203331977 U CN2012203331977 U CN 2012203331977U CN 201220333197 U CN201220333197 U CN 201220333197U CN 202663186 U CN202663186 U CN 202663186U
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- CN
- China
- Prior art keywords
- power supply
- source
- lead
- filter
- railway communication
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The utility model discloses a power supply module of a railway communication signal system. The power supply module of the railway communication signal system comprises an input terminal, a filter, an output terminal and a backup power supply; the input terminal is connected to a power grid so as to receive a power grid power supply; the filter is connected to the input terminal, and filters and removes harmonic wave pollution in the power grid power supply; the output terminal is connected to the filter so as to output a filtered power supply; the backup power supply is connected to the output terminal through a change-over switch; the change-over switch is connected to a voltage detector; the voltage detector detects the power disconnection of the power grid so as to control the change-over switch to be connected with the backup power supply and the output terminal; and the voltage detector detects the power of the power grid so as to control the change-over switch to cut off the backup power supply and the output terminal. The power supply module of the railway communication signal system provided by the utility model can effectively filter and remove the harmonic wave pollution in the power grid, utilizes a pure-lead storage battery with long service life and stable performances as the storage device of the backup power supply, and also utilizes a UPS (uninterrupted power supply) with good electrical insulation performance as a backup power supply system, thus the power supply module has safe and reliable performances.
Description
Technical field
The utility model relates to the power-supply device field, relates in particular to the power supply module of a kind of Source of Railway Communication and Signalling system.
Background technology
One stage loads such as China's existing Railway Design code requirement signal of communication should have the two-way power supply, supply power to respectively power consumption equipment or low-voltage dual power switching device shifter place, generally automatically close up, connect step down side by the station in the design at present and respectively draw one road power supply to power consumption equipment place dual power supply switching box, feed out to load from the dual power supply switching box end opening, in this electric power system, double-power supply switching device as the transfer point of two-way power supply to guaranteeing that reliable power supply plays key effect.
The utility model content
The utility model is intended to propose a kind of power supply module of novel Source of Railway Communication and Signalling system.
According to an embodiment of the present utility model, a kind of Source of Railway Communication and Signalling system power supply assembly is proposed, comprise input terminal, filter, lead-out terminal and back-up source.Input terminal is connected to electrical network and receives electric network source.Filter is connected to input terminal, the harmonic pollution in the filter filtering electric network source.Lead-out terminal is connected to filter output through the power supply of filtering.Back-up source is connected to lead-out terminal by diverter switch, diverter switch is connected to voltage detector, voltage detector detects grid cut-off and then controls diverter switch connection back-up source and lead-out terminal, and voltage detector detects electrical network has electricity then to control diverter switch cut-out back-up source and lead-out terminal.
In one embodiment, back-up source also is connected to input terminal by charge switch, and connecting charge switch is the back-up source charging by electric network source.
In one embodiment, back-up source is ups system.This ups system has rectifier, input isolating transformer and output isolation transformer.
In one embodiment, this back-up source uses pure lead accumulator.
Source of Railway Communication and Signalling system power supply assembly of the present utility model is the harmonic pollution in the filtering electrical network effectively, utilize the life-span long, the pure lead accumulator of stable performance is the memory device of power supply in support, also utilize in support power-supply system of the good UPS of electrical isolation performance, so that power supply module possesses safe and reliable performance.
Description of drawings
Fig. 1 has disclosed the structured flowchart according to the Source of Railway Communication and Signalling system power supply assembly of an embodiment of the present utility model.
Fig. 2 a and Fig. 2 b have disclosed the waveform of the harmonic pollution in the electric network source.
Embodiment
With reference to shown in Figure 1, Fig. 1 has disclosed the structure chart according to the Source of Railway Communication and Signalling system power supply assembly 100 of an embodiment of the present utility model.This power supply module 100 comprises input terminal 102, filter 104, lead-out terminal 106 and back-up source 108.
Have the lower large power-consuming equipment of a lot of power factors in electrical network, such as the smelting equipment of smeltery, these equipment can be discharged into harmonic wave on the electrical network, cause high order harmonic component to pollute to electrical network, and other power consumption equipment is caused damage.Fig. 2 a has disclosed the due sinusoidal waveform of electrical network, and Fig. 2 b has disclosed by the waveform behind the harmonic pollution.Shown in Fig. 2 b, should be serious distortion of sinusoidal wave voltage waveform, the voltage peak-to-peak value is high, and these all can cause other power consumption equipment not mate because of overvoltage or frequency to cause fault.Filter 104 can effectively gradually lack harmonic content, reduces crest voltage.Between input terminal 102 and lead-out terminal 106, add effectively harmonic carcellation pollution of filter 104.
Back-up source 108 is connected to lead-out terminal 106 by diverter switch 107, diverter switch 107 is connected to voltage detector 105, voltage detector 105 detects grid cut-off and then controls diverter switch 107 connection back-up sources 108 and lead-out terminal 106, and voltage detector 105 detects electrical network has electricity then to control diverter switch 107 cut-out back-up sources 108 and lead-out terminals 106.Continue with reference to shown in Figure 1, back-up source 108 also is connected to input terminal 102 by charge switch 109, and connecting charge switch 109 can be back-up source 108 chargings by electric network source.In one embodiment, back-up source is ups system, and this ups system has rectifier, input isolating transformer and output isolation transformer.In one embodiment, back-up source uses pure lead accumulator.
Ups system is the abbreviation of uninterruptible power system, and ups system has strict shielding measure to logical circuit and communicating circuit.Can dispose input isolating transformer and output isolation transformer to strengthen the electrical isolation performance of system.Can adopt 12 pulse rectifiers, the various protection switches such as internal battery protection switch, input and output switch, static state and maintenance bypass switch.Ups system must can be tackled high temperature and high humidity.Also the space is little usually in the place of its installation, is difficult to reach circulation of air.Just because of this, the design of UPS all has king-sized critical semiconductor assembly, for example IGBT, rectifier and a fin.
Aspect preparation time, the charger of typical business level UPS is that a lead-acid battery of 15～30 minutes was charged to 95% in 8～10 hours.Comparatively speaking, the charger capabilities of technical grade ups system is just much bigger, because the support time of battery is 60 minutes to 8 hours or longer.UPS must possess this characteristic that enough recharge capacity are arranged at least in charger.
In one embodiment, use pure lead accumulator as storage battery.Pure lead accumulator has following features: long service life, capacity abundance, high conformity, charge acceptance is strong, operating temperature range is large (40～+ 60 ℃), self-discharge rate is extremely low, can store 2 years (20 ℃), good seal performance, the pure plumbous VRLA battery technology of safe and reliable, thin pole plate, energy density is high.
For the common lead acid accumulator, 10 ℃ of the every risings of temperature, shorter battery life half.So be 10 years such as the float life of battery 20 ℃ the time, then the life-span in the time of 30 ℃ is 5 years, and the life-span in the time of 40 ℃ is 2.5 years, and the rest may be inferred.So ambient temperature is still very large on the impact of battery life.Particularly use battery in the nearly pyrotoxin of battery, the bad place that ventilates again, also can cause the battery bulging by Yin Gaowen.And pure lead accumulator can the Effective Raise accumulator cell charging and discharging cycle efficieny, improved the adaptability to ambient temperature.
Pure lead accumulator charging principle is as follows: 2P
bSO
4+ 2H
2O=P
bO
2+ Pb+2H
2SO
4
Pure lead accumulator discharge principle is as follows: P
bO
2+ P
b+ 2H
2SO
4=2P
bSO
4+ 2H
2O
Anodal main component is brown lead oxide, and the negative pole main component is plumbous; Under the discharge condition, the main component of both positive and negative polarity is lead sulfate.Lead peroxide during discharge in the positive plate and the spongy lead on the minus plate and the sulfuric acid in the electrolyte react and become lead sulfate, so the concentration of sulfuric acid constantly reduces in the electrolyte.Otherwise the negative and positive the two poles of the earth active material that becomes lead sulfate during charging is discharged into the sulfuric acid composition that is fixed therein in the electrolyte, becomes respectively spongy lead and lead peroxide, and the sulfuric acid concentration in the electrolyte constantly increases.
Source of Railway Communication and Signalling system power supply assembly of the present utility model is the harmonic pollution in the filtering electrical network effectively, utilize the life-span long, the pure lead accumulator of stable performance is the memory device of power supply in support, also utilize in support power-supply system of the good UPS of electrical isolation performance, so that power supply module possesses safe and reliable performance.
Claims (5)
1. a Source of Railway Communication and Signalling system power supply assembly is characterized in that, comprising:
Input terminal, input terminal are connected to electrical network and receive electric network source;
Filter, filter is connected to input terminal, the harmonic pollution in the filter filtering electric network source;
Lead-out terminal, lead-out terminal are connected to filter output through the power supply of filtering;
Back-up source, back-up source is connected to lead-out terminal by diverter switch, diverter switch is connected to voltage detector, voltage detector detects grid cut-off and then controls diverter switch connection back-up source and lead-out terminal, and voltage detector detects electrical network has electricity then to control diverter switch cut-out back-up source and lead-out terminal.
2. Source of Railway Communication and Signalling system power supply assembly as claimed in claim 1 is characterized in that described back-up source also is connected to input terminal by charge switch, and connecting charge switch is the back-up source charging by electric network source.
3. Source of Railway Communication and Signalling system power supply assembly as claimed in claim 1 is characterized in that described back-up source is ups system.
4. Source of Railway Communication and Signalling system power supply assembly as claimed in claim 3 is characterized in that, described U PS system has rectifier, input isolating transformer and output isolation transformer.
5. Source of Railway Communication and Signalling system power supply assembly as claimed in claim 1 is characterized in that described back-up source uses pure lead accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203331977U CN202663186U (en) | 2012-07-10 | 2012-07-10 | Power supply module of railway communication signal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203331977U CN202663186U (en) | 2012-07-10 | 2012-07-10 | Power supply module of railway communication signal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663186U true CN202663186U (en) | 2013-01-09 |
Family
ID=47458065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203331977U Expired - Fee Related CN202663186U (en) | 2012-07-10 | 2012-07-10 | Power supply module of railway communication signal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202663186U (en) |
-
2012
- 2012-07-10 CN CN2012203331977U patent/CN202663186U/en not_active Expired - Fee Related
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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: 20130109 Termination date: 20160710 |