CN104578385A - Uninterruptible power supply - Google Patents
Uninterruptible power supply Download PDFInfo
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- CN104578385A CN104578385A CN201310526653.9A CN201310526653A CN104578385A CN 104578385 A CN104578385 A CN 104578385A CN 201310526653 A CN201310526653 A CN 201310526653A CN 104578385 A CN104578385 A CN 104578385A
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Abstract
The invention discloses an uninterruptible power supply, which comprises an input filtering unit, a rectification unit, a first switch unit, an energy storage unit, a charging unit, a second switch unit, a booster unit, an inversion unit, an output filtering unit, a voltage stabilization unit connected with a load, a voltage sampling unit connected with commercial power and used for detecting the voltage change of a commercial power grid and a control unit connected with the voltage sampling unit, the first switch unit and the second switch unit, wherein the control unit controls the first switch unit to be turned off and controls the second switch unit to be turned on when the commercial power is interrupted; when the commercial power is recovered and the voltage of the commercial power grid is within the range of 220V+/-22V, the control unit controls the first switch unit to be turned on and controls the second switch unit to be turned off. According to the uninterruptible power supply, the service life of the uninterruptible power supply is prolonged, the cost is reduced, and the uninterruptible power supply is suitable to be widely popularized.
Description
Technical field
The present invention relates to a kind of uninterrupted power supply.
Background technology
Uninterrupted power supply is the power-supply device that a kind of DC converting exported by the energy storage device of inside when normal mains-supplied is interrupted becomes to exchange continued power, be mainly used in providing continual supply of electric power to power electronic equipment, there are the following problems for the uninterrupted power supply of prior art: switch to mains-supplied loop immediately when detecting that mains-supplied is recovered, and now the line voltage of civil power is often also unstable, and then the certain impact causing uninterrupted power supply, uninterrupted power supply works long hours and reduces useful life in such a mode, improves use cost.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of cost-saving, uninterrupted power supply of increasing the service life.
Technological means of the present invention is as follows:
A kind of uninterrupted power supply, comprising:
Connect the input filter unit of utility grid;
Connect the rectification unit of input filter unit;
Connect rectification unit and inversion unit, for controlling the first switch element that mains-supplied loop switches on and off according to the control signal of control unit;
Energy-storage units;
Connect rectification unit, for the charhing unit charged to energy-storage units;
Connect energy-storage units and boosting unit, for controlling the second switch unit that uninterrupted power supply current supply circuit switches on and off according to the control signal of control unit;
Energy-storage units is connected, the boosting unit that the direct current for exporting energy-storage units boosts by second switch unit;
Connect boosting unit and connect rectification unit by the first switch element, the direct current for exporting rectification unit or boosting unit carries out the inversion unit of exchange conversion;
Connect the output filtering unit of inversion unit;
Connect the voltage regulation unit of output filtering unit; Described voltage regulation unit connects load;
Connect civil power, for detecting the voltage sampling unit of utility grid change in voltage;
Connect voltage sampling unit, the first switch element and second switch unit, for according to the utility grid change in voltage of voltage sampling unit inspection by controlling the first switch element, the closed and disconnected of second switch unit realizes the control unit that switches mains-supplied loop and uninterrupted power supply current supply circuit;
When commercial power interruption, control unit controls the first switch element and disconnects, and second switch unit closes;
When city power recovery and when utility grid voltage is in 220V ± 10% scope, control unit controls the first switch element and closes, and second switch unit disconnects;
Further, described boosting unit is made up of boost booster circuit;
Further, described inversion unit adopts full bridge inverter.
Owing to have employed technique scheme, a kind of uninterrupted power supply provided by the invention, when commercial power interruption, control unit controls the first switch element and disconnects, and second switch unit closes, when city power recovery and when utility grid voltage is in 220V ± 10% scope, control unit controls the first switch element and closes, second switch unit disconnects, not only complete and whether interrupt according to civil power and realize the switching of mains-supplied loop and uninterrupted power supply current supply circuit, and avoid uninterrupted power supply of the prior art and switch to mains-supplied loop immediately when detecting that mains-supplied is recovered, and now the line voltage of civil power is often also unstable, and then cause the problem of the certain impact to uninterrupted power supply, the present invention extends the useful life of uninterrupted power supply, cost-saving, be suitable for extensive popularization.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Embodiment
A kind of uninterrupted power supply as shown in Figure 1, comprising: the input filter unit connecting utility grid; Connect the rectification unit of input filter unit; Connect rectification unit and inversion unit, for controlling the first switch element that mains-supplied loop switches on and off according to the control signal of control unit; Energy-storage units; Connect rectification unit, for the charhing unit charged to energy-storage units; Connect energy-storage units and boosting unit, for controlling the second switch unit that uninterrupted power supply current supply circuit switches on and off according to the control signal of control unit; Energy-storage units is connected, the boosting unit that the direct current for exporting energy-storage units boosts by second switch unit; Connect boosting unit and connect rectification unit by the first switch element, the direct current for exporting rectification unit or boosting unit carries out the inversion unit of exchange conversion; Connect the output filtering unit of inversion unit; Connect the voltage regulation unit of output filtering unit; Described voltage regulation unit connects load; Connect civil power, for detecting the voltage sampling unit of utility grid change in voltage; Connect voltage sampling unit, the first switch element and second switch unit, for according to the utility grid change in voltage of voltage sampling unit inspection by controlling the first switch element, the closed and disconnected of second switch unit realizes the control unit that switches mains-supplied loop and uninterrupted power supply current supply circuit; When commercial power interruption, control unit controls the first switch element and disconnects, and second switch unit closes; When city power recovery and when utility grid voltage is in 220V ± 10% scope, control unit controls the first switch element and closes, and second switch unit disconnects; Further, described boosting unit is made up of boost booster circuit; Further, described inversion unit adopts full bridge inverter.
A kind of uninterrupted power supply provided by the invention, when commercial power interruption, control unit controls the first switch element and disconnects, and second switch unit closes, when city power recovery and when utility grid voltage is in 220V ± 10% scope, control unit controls the first switch element and closes, second switch unit disconnects, not only complete and whether interrupt according to civil power and realize the switching of mains-supplied loop and uninterrupted power supply current supply circuit, and avoid uninterrupted power supply of the prior art and switch to mains-supplied loop immediately when detecting that mains-supplied is recovered, and now the line voltage of civil power is often also unstable, and then cause the problem of the certain impact to uninterrupted power supply, the present invention extends the useful life of uninterrupted power supply, cost-saving, be suitable for extensive popularization.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a uninterrupted power supply, is characterized in that comprising:
Connect the input filter unit of utility grid;
Connect the rectification unit of input filter unit;
Connect rectification unit and inversion unit, for controlling the first switch element that mains-supplied loop switches on and off according to the control signal of control unit;
Energy-storage units;
Connect rectification unit, for the charhing unit charged to energy-storage units;
Connect energy-storage units and boosting unit, for controlling the second switch unit that uninterrupted power supply current supply circuit switches on and off according to the control signal of control unit;
Energy-storage units is connected, the boosting unit that the direct current for exporting energy-storage units boosts by second switch unit;
Connect boosting unit and connect rectification unit by the first switch element, the direct current for exporting rectification unit or boosting unit carries out the inversion unit of exchange conversion;
Connect the output filtering unit of inversion unit;
Connect the voltage regulation unit of output filtering unit; Described voltage regulation unit connects load;
Connect civil power, for detecting the voltage sampling unit of utility grid change in voltage;
Connect voltage sampling unit, the first switch element and second switch unit, for according to the utility grid change in voltage of voltage sampling unit inspection by controlling the first switch element, the closed and disconnected of second switch unit realizes the control unit that switches mains-supplied loop and uninterrupted power supply current supply circuit;
When commercial power interruption, control unit controls the first switch element and disconnects, and second switch unit closes;
When city power recovery and when utility grid voltage is in 220V ± 10% scope, control unit controls the first switch element and closes, and second switch unit disconnects.
2. a kind of uninterrupted power supply according to claim 1, is characterized in that described boosting unit is made up of boost booster circuit.
3. a kind of uninterrupted power supply according to claim 1, is characterized in that described inversion unit adopts full bridge inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526653.9A CN104578385A (en) | 2013-10-29 | 2013-10-29 | Uninterruptible power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526653.9A CN104578385A (en) | 2013-10-29 | 2013-10-29 | Uninterruptible power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578385A true CN104578385A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310526653.9A Pending CN104578385A (en) | 2013-10-29 | 2013-10-29 | Uninterruptible power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578385A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790427A (en) * | 2016-04-16 | 2016-07-20 | 合肥博雷电气有限公司 | Vehicle-mounted integrated mobile uninterruptible power supply device |
| CN107492941A (en) * | 2017-10-16 | 2017-12-19 | 四川航电微能源有限公司 | Charging pile device based on airport ground power supply |
| WO2018076825A1 (en) * | 2016-10-25 | 2018-05-03 | 郑州云海信息技术有限公司 | Power supply apparatus and method for server |
| CN108512300A (en) * | 2018-04-19 | 2018-09-07 | 武汉科功科技有限公司 | A kind of medical power supply equipment and its method of supplying power to |
| CN108667125A (en) * | 2018-04-19 | 2018-10-16 | 武汉科功科技有限公司 | A kind of ultrasound knife is with for electric installation |
-
2013
- 2013-10-29 CN CN201310526653.9A patent/CN104578385A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790427A (en) * | 2016-04-16 | 2016-07-20 | 合肥博雷电气有限公司 | Vehicle-mounted integrated mobile uninterruptible power supply device |
| WO2018076825A1 (en) * | 2016-10-25 | 2018-05-03 | 郑州云海信息技术有限公司 | Power supply apparatus and method for server |
| US10802563B2 (en) | 2016-10-25 | 2020-10-13 | Zhengzhou Yunhai Information Technology Co., Ltd. | Power supply apparatus and method for server |
| CN107492941A (en) * | 2017-10-16 | 2017-12-19 | 四川航电微能源有限公司 | Charging pile device based on airport ground power supply |
| CN108512300A (en) * | 2018-04-19 | 2018-09-07 | 武汉科功科技有限公司 | A kind of medical power supply equipment and its method of supplying power to |
| CN108667125A (en) * | 2018-04-19 | 2018-10-16 | 武汉科功科技有限公司 | A kind of ultrasound knife is with for electric installation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |