CN2519518Y - Contravariant standby power source - Google Patents
Contravariant standby power source Download PDFInfo
- Publication number
- CN2519518Y CN2519518Y CN 01262319 CN01262319U CN2519518Y CN 2519518 Y CN2519518 Y CN 2519518Y CN 01262319 CN01262319 CN 01262319 CN 01262319 U CN01262319 U CN 01262319U CN 2519518 Y CN2519518 Y CN 2519518Y
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- Prior art keywords
- level
- output
- power supply
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- input end
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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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- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Inverter Devices (AREA)
Abstract
The utility model is an inverted alternative power source which is characterized in that: a municipal input end of the inverted alternative power source is connected to an AC input end of the inverted equipment; the AC input end of the inverted equipment is connected to an input of a filter which is provided with a sine wave of the PMW wave; after being connected to the municipal input end of the inverted alternative power source through a switch, an output end of the filter outputs waves. An output of the inverted equipment of the utility model of the inverted alternative power source is conveyed to a loading through the filter which is provided with a sine wave of the PMW wave, which meets demands of precision equipments of banks, bonds on a current which is characterized by sine waves.
Description
The utility model belongs to the stand-by power supply that just starts when normal power supply stops suddenly.
So-called stand-by power supply is when main power supply such as mains failure, can in time replenish the supply unit of standby a period of time.At present, existing stand-by power supply is by following three kinds, the one, drive generator with diesel engine, when having a power failure, in time generate electricity, this equipment is commonplace at present, but the electricity that generator sends very instability causes damage to power consumption equipment easily, and big, the seriously polluted use of diesel engine volume is inconvenient; The 2nd, the power supply of the emergency light that uses in the hotel is not suitable for industry and uses very for a short time; The 3rd, with the stand-by power supply of inversion transformation technique in conjunction with the storage battery formation, though this power supply has solved the shortcoming of above-mentioned two kinds of methods, but the alternating current of the PMW ripple of stand-by power supply output at present, this electric current quality is not good to be not suitable for to powering as employed precision equipment such as bank, security.
The purpose of this utility model is, for the inversion stand-by power supply that provides a kind of sine wave output and output frequency and incoming frequency to remain unchanged is provided.
For achieving the above object, the utility model is a kind of inversion stand-by power supply of realizing like this, the mains electricity input end of described inversion stand-by power supply connects the output of this inversion stand-by power supply through diverter switch, the mains electricity input end of described inversion stand-by power supply also connects the ac input end of contravariant equipment, the dc terminal of this contravariant equipment connects storage battery, and this storage battery connects charger; The ac output end of described contravariant equipment connects the input that the PMW ripple becomes the filter of sine wave, and the output of this filter also connects the output of this inversion stand-by power supply through described diverter switch.
Above-mentioned contravariant equipment is frequency converter or inverter.
Above-mentioned filter is made of transformer, and the secondary three-phase that is output as of this transformer is U level, V level, W level and N level, and wherein U level, V level, W level connect inductance respectively, and U level, V level, W level are connected electric capacity with the N level respectively simultaneously.
Advantage of the present utility model and good effect are that the output of this stand-by power supply contravariant equipment is exported to load after becoming sine wave filter through PMW again, has satisfied the demand as the input of precision equipment requirement sine-wave currents such as bank, security.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the circuit diagram of an embodiment of the utility model.
As shown in the figure, a kind of inversion stand-by power supply, the mains electricity input end 1 of inversion stand-by power supply connects the output 7 of this inversion stand-by power supply through diverter switch 5, the mains electricity input end 1 of inversion stand-by power supply also connects the ac input end of contravariant equipment 2, the dc terminal of this contravariant equipment 2 connects storage battery 3, and this storage battery 3 connects charger 6; The ac output end of described contravariant equipment 2 connects the input that the PMW ripple becomes the filter 4 of sine wave, and the output of this filter 4 also connects the output 7 of these inversion stand-by power supplies through described diverter switch 5.
This contravariant equipment 2 of difference as requested can be frequency converter or inverter.
Claims (3)
1. inversion stand-by power supply, it is characterized in that: described inversion stand-by power supply comprises mains electricity input end (1), output (7) and contravariant equipment (2), wherein said mains electricity input end (1) directly connects output (7) through diverter switch (5), the mains electricity input end of described inversion stand-by power supply (1) also connects the ac input end of contravariant equipment (2), the dc terminal of this contravariant equipment (2) connects storage battery (3), and this storage battery (3) connects charger (6); The ac output end of described contravariant equipment (2) connects the input that the PMW ripple becomes the filter (4) of sine wave, and the output of this filter (4) also passes through described diverter switch (5) and connects output (7).
2. inversion stand-by power supply according to claim 1 is characterized in that: above-mentioned contravariant equipment (2) is frequency converter or inverter.
3. inversion stand-by power supply according to claim 1 and 2, it is characterized in that: above-mentioned filter (4) is made of transformer (TR2), the secondary three-phase that is output as of this transformer (TR2) is U level, V level, W level and N level, wherein U level, V level, W level connect inductance (L) respectively, and U level, V level, W level are connected electric capacity (C) respectively with the N level simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262319 CN2519518Y (en) | 2001-10-24 | 2001-10-24 | Contravariant standby power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262319 CN2519518Y (en) | 2001-10-24 | 2001-10-24 | Contravariant standby power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519518Y true CN2519518Y (en) | 2002-10-30 |
Family
ID=33670079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01262319 Expired - Fee Related CN2519518Y (en) | 2001-10-24 | 2001-10-24 | Contravariant standby power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519518Y (en) |
-
2001
- 2001-10-24 CN CN 01262319 patent/CN2519518Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |