CN201142580Y - Three-in one-out circuit of EPS emergency power supply - Google Patents
Three-in one-out circuit of EPS emergency power supply Download PDFInfo
- Publication number
- CN201142580Y CN201142580Y CNU2007200991048U CN200720099104U CN201142580Y CN 201142580 Y CN201142580 Y CN 201142580Y CN U2007200991048 U CNU2007200991048 U CN U2007200991048U CN 200720099104 U CN200720099104 U CN 200720099104U CN 201142580 Y CN201142580 Y CN 201142580Y
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- CN
- China
- Prior art keywords
- output
- input
- contactor
- power supply
- inverter
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a three-in and single-out circuit of an EPS emergency power supply, which comprises a main power supply, contactors, a LC output filter circuit, a charger/inverter and a battery pack; the three-phase main power supply is connected to the input contactor CK1 by an input switch DK1, the output end of the input contactor CK1 is connected with the output end of the output contactor CK2, the input end of the output contactor CK2 is connected with the LC filter circuit, the output of the LC filter circuit is connected with the charger/inverter, the battery pack is connected with the input of the charger/inverter by the input of a controller, and the output thereof connects the input of the output contactor and the output of the charger/inverter to an output load after the filtration by the input of the LC filter circuit. When the main power input or the main power detected by a system is fluctuated within 5 percent to 10 percent of the rated voltage, the charger charges the battery pack; when the system does not detect the main power input, the battery pack supplies the power to the load by the inverter, thus being particularly applicable to the occasions of mixed loads with the requirement of applying the three-phase input.
Description
Technical field
The utility model belongs to emergency power supply unit (EPS) field of batteries to store energy, relate to three of a kind of EPS emergency power supply and go into singly to go out circuit, for the emergency lighting occasion provides centrally connected power supply, be applicable to the occasion of the mixed type load that must adopt the three-phase input, for example in the hotel, skyscraper, hospital, megastore, entertainment place or the like.
Background technology
Along with social development, information-based, modernized, just depend on electric power more.Extensively used in architectural electricity field and special emergency service occasion EPS emergency power supply.Yet which type of EPS is many opposite sex of load determined to select for use, and main electricity is single-phase input, and the EPS of single-phase output can't satisfy on-the-spot demand.
Summary of the invention
Problem to be solved in the utility model is, overcome the deficiencies in the prior art, provide three of a kind of EPS emergency power supply to go into singly to go out circuit, when system detects main electricity input or main electro-mechanical wave when the upper limit 5% of rated voltage is within the scope of the lower limit 10% of rated voltage, system gives batteries charging by charger; When system detected less than the input of master's electricity, battery pack was by the inverter powering load.
The utility model solves its technical problem and takes following technical scheme to realize:
Three of a kind of EPS emergency power supply that provides according to the utility model goes into singly to go out circuit, comprise main power supply, contactor, the LC output filter circuit, charging/inverter and battery pack, main power supply is a three-phase master electricity power supply, main power supply is connected to input contactor CK1 behind input switch DK1, the output of input contactor CK1 connects the output of output contactor CK2, the input of output contactor CK2 connects the LC filter circuit, the output of LC filter circuit connects charging/inverter, battery pack connects the input of charging/inverter by the input of controller, its output is by the input of LC filter circuit, give the input of output contactor after the filtering, the output of output contactor is connected to output loading.
The utility model compared with prior art has significant advantage and benefit.
The utility model adopts under the normal situation of main electricity, and not only the load of illumination type can normal power supply by EPS, and the load of mixed type also can be used simultaneously.Simultaneously.Compare with the EPS of existing single-phase input, increased the output contactor, inverter output signal is exported to output contactor CK2 and is controlled by the little relay of 12V, promptly uses and conveniently saves trouble again, reaches the effect of getting twice the result with half the effort.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 schematic block circuit diagram of the present utility model;
Fig. 2 circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment, structure, feature and effect thereof that foundation the utility model is provided, describe in detail as after.
Referring to Fig. 1～2, three of a kind of EPS emergency power supply goes into singly to go out circuit, comprise main power supply, contactor, the LC output filter circuit, charging/inverter and battery pack, main power supply is three-phase master electricity power supply N, A, B, C, main power supply is connected to input contactor CK1 behind main electric input switch DK1, the output of input contactor CK1 connects the output of output contactor CK2, the input of output contactor CK2 connects the LC filter circuit, the output of LC filter circuit connects charging/inverter, battery pack connects the input of charging/inverter by the input of controller, its output is by the input of LC filter circuit, give the input of output contactor after the filtering, the output of output contactor is connected to output loading.
When system detects main electricity input or main electro-mechanical wave when the upper limit 5% of rated voltage is within the scope of the lower limit 10% of rated voltage, system gives batteries charging by charger; When system detected less than the input of master's electricity, battery pack was by the inverter powering load.
Operation principle: when closing DK1, system has detected main electricity output, then send signal and give input contactor CK1 by controller, output contactor CK2 then by and CK1 between interlocking, CK2 disconnects when making the CK1 adhesive, and the live part (buck chopper) by charging/inverter when supplying point by main electricity to load charges the battery; When detecting less than main electricity or main piezoelectric voltage fluctuation range, system exceeded the scope of the upper limit 5% of rated voltage to the lower limit 10% of rated voltage, send inverter signal by controller and give output contactor CK2, input contactor CK1 then by and CK2 between interlocking, CK1 disconnects when making the CK2 adhesive, make the CK2 adhesive, by the inversion of storage battery by charging/inverter partly (boost chopper), LC filtering powering load.
Claims (1)
1. three of an EPS emergency power supply go into singly to go out circuit, comprise main power supply, contactor, the LC output filter circuit, charging/inverter and battery pack, it is characterized in that: described master's power supply is a three-phase master electricity power supply, main power supply is connected to input contactor CK1 behind input switch DK1, the output of input contactor CK1 connects the output of output contactor CK2, the input of output contactor CK2 connects the LC filter circuit, the output of LC filter circuit connects charging/inverter, battery pack connects the input of charging/inverter by the input of controller, its output is by the input of LC filter circuit, give the input of output contactor after the filtering, the output of output contactor is connected to output loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200991048U CN201142580Y (en) | 2007-12-21 | 2007-12-21 | Three-in one-out circuit of EPS emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200991048U CN201142580Y (en) | 2007-12-21 | 2007-12-21 | Three-in one-out circuit of EPS emergency power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201142580Y true CN201142580Y (en) | 2008-10-29 |
Family
ID=40070289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200991048U Expired - Fee Related CN201142580Y (en) | 2007-12-21 | 2007-12-21 | Three-in one-out circuit of EPS emergency power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201142580Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427268A (en) * | 2011-11-28 | 2012-04-25 | 苏州康开电气有限公司 | Distributed energy storage peak shaving system |
-
2007
- 2007-12-21 CN CNU2007200991048U patent/CN201142580Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427268A (en) * | 2011-11-28 | 2012-04-25 | 苏州康开电气有限公司 | Distributed energy storage peak shaving system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20121221 |