CN101888112B - Power system provided with stand-by power - Google Patents
Power system provided with stand-by power Download PDFInfo
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- CN101888112B CN101888112B CN 200910051385 CN200910051385A CN101888112B CN 101888112 B CN101888112 B CN 101888112B CN 200910051385 CN200910051385 CN 200910051385 CN 200910051385 A CN200910051385 A CN 200910051385A CN 101888112 B CN101888112 B CN 101888112B
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Abstract
The invention provides a power system provided with stand-by power, comprising a stand-by power module and a first power supply module; wherein the stand-by power module only comprises an alternating current power supply input terminal, a stand-by power supply unit and a monitoring unit, the monitoring unit monitors whether the input alternating current power supply is cut off or not, so as to provide a control signal; the first power supply module is provided with an alternating current power supply input terminal, a controlled unit and a conversion unit, the controlled unit is connected with the output terminal of the stand-by power supply unit and is controlled by the control signal, so as to access the power supply provided by the stand-by power supply unit, and the conversion unit is used for carrying out corresponding conversion on the power supply provided by the stand-by power supply unit or the input alternating current power supply, so as to output a power supply required by load. As the controlled unit is arranged in the first power supply module, hot plug of the stand-by power module can be realized, and further the reliability of load power supply is improved.
Description
Technical field
The present invention relates to a kind of power-supply system, particularly a kind of power-supply system with stand-by power supply.
Background technology
In many crucial industries, for example bank, telecommunications, security etc., for ensureing the safety and stablization of online transaction and background data base etc., the memory device that necessarily requires to support these important service can round-the-clockly be worked continuously and stably, realizes 24 hours uninterrupted operation.But the prerequisite of memory device continuous and steady operation is exactly its power supply has high reliability.In general, in the above-mentioned crucial industry of mentioning, single supply often can't be competent at the power reguirements of storage system harshness, and more general situation is that these memory devices have all adopted the double power supply parallel electric power system.Be in the Chinese patent literature of 02242346.X in the patent No. for example, applicant Huashuo Computer Co Ltd provides a kind of power system with stand-by power supply with low cost, with to computer power supply.
Automatic change-over device of emergency (abbreviation prepared auto restart) is to guarantee that the double power supply parallel electric power system continues the important measures of reliable power supply, its effect is when working power breaks down, can be automatically and promptly with in-put of spare power supply, or load switched on the stand-by power supply, make the unlikely interruption of power supply, guarantee that working power normally moves, thereby make some important loads (for example internal memory) be unlikely to cause losing of data because of outage.This supply power mode is used widely in every profession and trade, as being in 200620030640.8 the Chinese patent literature in the patent No., a kind of automatic change-over device of emergency for traffic lights is disclosed, to guarantee the normal operation of traffic lights when the civil power power down.
And at present, the power-supply system that various kinds of equipment is comparatively commonly used as shown in Figure 1, it mainly comprises standby power supply module (StandbyPower System, SPS) and power supply module (Power Supply Unit, PSU) two large divisions, wherein, the SPS module comprises rechargeable battery, to charger unit, monitoring means, boosting unit and the AC/DC switch of the charging of described rechargeable battery, and the structure of AC/DC switch as shown in Figure 2.Wherein, the first input end of ACAC/DC switch (In1) is connected to AC power, and second input (In2) of ACAC/DC switch is connected to the output of boosting unit.When the AC power (being civil power) of input is powered when normal, the alternating current that is provided by civil power is admitted to the SPS unit, on the one hand rechargeable battery is charged, send control signal (Con) by monitoring unit on the other hand, make the AC/DC switch be connected to first input end, and then make the alternating current of input directly input to the PSU module, powered through the backward memory of conversion by the PSU module again; And when civil power cut off the power supply, monitoring unit was then controlled the AC/DC switch and is connected to the second input, made the rechargeable battery backward PSU module for power supply that boosts.In order to reduce as far as possible the risk of memory outage, a plurality of PSU modules also usually are set, as shown in Figure 3, power-supply system is provided with PSU module 1 and PSU module 2 in parallel, so when wherein one breaks down, still can be by another PSU module for power supply.Simultaneously when certain PSU module (for example the PSU module 1) wherein when unusually maybe needing to detect, all can in the situation that do not affect system power supply PSU module 1 is removed, realize the hot plug of PSU module.Yet, when the SPS module maybe needs detection to be removed owing to breaking down, even mains-supplied is normal, also will make each PSU module outage, and then make the loss of data of memory, cause huge loss to the user.
Therefore, how further improve the reliability of the power-supply system that is used for all kinds of memory devices (such as the internal memory of server, memory etc.), the real current research personnel problem demanding prompt solution that become.
Summary of the invention
The object of the present invention is to provide a kind of power-supply system with stand-by power supply, to realize the hot plug of standby power supply module, improve power supply reliability.
Reach in order to achieve the above object other purposes, provided by the invention one has the power-supply system of stand-by power supply, comprise: standby power supply module and the first power supply module, wherein, described standby power supply module only have ac power input end, stand-by power supply power supply unit, and the AC power of monitoring input whether cut off the power supply in order to the monitoring unit of control signal is provided; Described the first power supply module have ac power input end, be connected with the output of described stand-by power supply power supply unit and be subjected to the control of described control signal in case in the power supply of power supply that described stand-by power supply power supply unit provides and the access of described ac power input end, select one controlled cell, and be used for the selected power supply of described controlled cell is carried out corresponding conversion with the converting unit of the required power supply of output loading.
Described controlled cell can be controlled double-pole switch, when being double-point double-throw switch, one input end is connected with described stand-by power supply power supply unit output, and another input is connected with described ac power input end, and its control end is connected with the output of described monitoring unit.
Better, described power-supply system with stand-by power supply also can comprise: the second source supply module identical with described the first power supply module structure.
Better, the stand-by power supply power supply unit can comprise rechargeable battery, be used for the boost in voltage of described rechargeable battery output with the boosting unit that exports controlled cell to, and with described ac power input end to being connected and for the charhing unit that charges to described rechargeable battery; Rechargeable battery can be lead-acid battery, Ni-MH battery or lithium ion battery etc.; Load can be memory or server etc.
In addition, described monitoring unit can comprise for judging that whether self operating state is normally with the state judgment sub-unit of sending control signal and the delay subelement that is used for the described control signal of delayed delivery.
In sum, the power-supply system with stand-by power supply of the present invention changes by the controlled cell that will be arranged on standby power supply module and is located at power supply module, can realize the hot plug of standby power supply module, improves the reliability that powers to the load.
Description of drawings
Fig. 1 is existing structural representation with power-supply system of stand-by power supply.
Fig. 2 is the structural representation that has the double-point double-throw switch that power-supply system with stand-by power supply adopts now.
Fig. 3 is provided with the structural representation of a plurality of power supply modules for existing power-supply system with stand-by power supply.
Fig. 4 is the basic structure schematic diagram with power-supply system of stand-by power supply of the present invention.
Embodiment
Below will describe the structure with power-supply system of stand-by power supply of the present invention in detail by specific embodiment.
See also Fig. 4, the power-supply system with stand-by power supply of the present invention comprises at least: standby power supply module, the first power supply module, and second source supply module (being simplicity of illustration, not shown among Fig. 4)
Described standby power supply module only have the incoming transport power supply AC power incoming end, standby power unit, and the AC power of monitoring input whether cut off the power supply in order to the monitoring unit of control signal is provided.Described standby power unit comprises rechargeable battery and the charhing unit that charges to described rechargeable battery, and charhing unit all is connected with described ac power input end with described monitoring unit, both internal structures are known to those skilled in the art knowing all, is not described in detail in this.Described rechargeable battery can adopt lead-acid battery, also can be the rechargeable battery of other types, for example, and Ni-MH battery or lithium ion battery etc.
Described the first power supply module have the incoming transport power supply ac power input end, comprise the controlled cell and the converting unit that are connected with rechargeable battery with described monitoring unit, wherein, described controlled cell can be double-pole switch, when it is the dpdt double-pole double-throw (DPDT) controlled switch (as shown in Figure 2), one input end (In1) is connected with rechargeable battery, another input (In2) is connected with described ac power input end, and its control end (Con) is connected with described monitoring unit output; Described converting unit is used for the power supply of the rechargeable battery of described controlled cell access or the AC power of input are carried out corresponding conversion take the required power supply of output loading (this switch technology is familiar with by those skilled in the art, therefore be not described in detail in this).Described load can be server, also can be memory etc.In the present embodiment, it is memory.
Described second source supply module adopts the structure identical with described the first power supply module, itself and described first power supply module of connected mode reference of described standby power supply module and being connected of described standby power supply module, therefore no longer repeat at this, it can be used as the backup of described the first power supply module, also can jointly power to the load with described the first power supply module.
Described operation principle with power-supply system of stand-by power supply is: when the AC power of inputting is normal, the control signal of described monitoring unit output makes the input of described dpdt double-pole double-throw (DPDT) controlled switch be connected to ac power input end, therefore the AC power of input directly accesses the converting unit of described the first power supply module and second source supply module and changes, to form the required power supply of memory; And when the AC power of input is cut off the power supply, the control signal of described monitoring unit output makes the input of described dpdt double-pole double-throw (DPDT) controlled switch be connected to the rechargeable battery output, therefore the rechargeable battery power supply accesses the converting unit of described the～power supply module and second source supply module and changes, to form the required power supply of memory.
From the above mentioned, when standby power supply module breaks down and when being moved out of, because AC power directly accesses power supply module, powered accordingly therefore can guarantee memory, realize the hot plug of standby power supply module.Yet, for avoiding unstable in switching of described double-point double-throw switch, can in described monitoring unit, set up for judging whether normal state judgment sub-unit and be used for the delay subelement of the described control signal of delayed delivery of himself operating state.For example, when described state judgment sub-unit judge himself work undesired, then described monitoring unit does not transmit control signal according to this state indication, to avoid when shifting out standby power supply module, turning to the output of rechargeable battery because misoperation causes double-point double-throw switch, cause civil power normally but to make the outage of the first power supply module.Postpone the misoperation of subelement also can avoid plugging standby power supply module the time and set up.
In sum, power-supply system with stand-by power supply of the present invention moves to power supply module by the controlled cell that will be located at standby power supply module, can realize the hot plug of standby power supply module, convenient detection and maintenance to standby power supply module, the while has also been improved the reliability of power-supply system.
Above-described embodiment just lists expressivity principle of the present invention and effect is described, but not is used for restriction the present invention.Any personnel that are familiar with technique all can without departing from the spirit and scope of the present invention, make amendment to above-described embodiment.Therefore, the scope of the present invention should be listed such as claims.
Claims (10)
1. power-supply system with stand-by power supply is characterized in that comprising:
Standby power supply module, only have ac power input end, stand-by power supply power supply unit, and the AC power of monitoring input whether cut off the power supply in order to the monitoring unit of control signal is provided;
Whether normally described monitoring unit comprises: be used for judging self operating state state judgment sub-unit;
Described monitoring unit also comprises: the delay subelement that is used for the described control signal of delayed delivery;
Have the first power supply module of ac power input end, comprising: be connected with the output of described stand-by power supply power supply unit and be subjected to the control of described control signal so as in the power supply of power supply that described stand-by power supply power supply unit provides and the access of described ac power input end, to select one controlled cell, and be used for the selected power supply of described controlled cell is carried out corresponding conversion with the converting unit of the required power supply of output loading.
2. the power-supply system with stand-by power supply as claimed in claim 1, it is characterized in that: described controlled cell is controlled double-pole switch.
3. the power-supply system with stand-by power supply as claimed in claim 2, it is characterized in that: described controlled double-pole switch is controlled double-point double-throw switch, one input end is connected with described stand-by power supply power supply unit output, another input is connected with described ac power input end, and its control end is connected with the output of described monitoring unit.
4. the power-supply system with stand-by power supply as claimed in claim 1 is characterized in that: described stand-by power supply power supply unit comprises rechargeable battery, with the boost in voltage of described rechargeable battery output with the boosting unit that exports described controlled cell to, and the charhing unit that is connected and is used for charging to described rechargeable battery with described ac power input end.
5. such as claim 1 or 4 described power-supply systems with stand-by power supply, characterized by further comprising: identical with described the first power supply module structure and with the connected mode of the described stand-by power supply power supply unit also second source supply module identical with described the first power supply module.
6. the power-supply system with stand-by power supply as claimed in claim 4, it is characterized in that: described rechargeable battery is lead-acid battery.
7. the power-supply system with stand-by power supply as claimed in claim 4, it is characterized in that: described rechargeable battery is Ni-MH battery.
8. the power-supply system with stand-by power supply as claimed in claim 4, it is characterized in that: described rechargeable battery is lithium ion battery.
9. the power-supply system with stand-by power supply as claimed in claim 1, it is characterized in that: described load is memory.
10. the power-supply system with stand-by power supply as claimed in claim 1, it is characterized in that: described load is server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910051385 CN101888112B (en) | 2009-05-15 | 2009-05-15 | Power system provided with stand-by power |
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| CN 200910051385 CN101888112B (en) | 2009-05-15 | 2009-05-15 | Power system provided with stand-by power |
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| CN101888112B true CN101888112B (en) | 2013-01-30 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082454B (en) * | 2010-12-03 | 2014-10-01 | 北京佳讯飞鸿电气股份有限公司 | Based-battery power supply unit and power supply control method |
| CN102315637A (en) * | 2011-04-08 | 2012-01-11 | 安伏（苏州）电子有限公司 | Direct-current power supply with power failure retention time |
| CN102231561B (en) * | 2011-06-21 | 2013-08-07 | 江苏科技大学 | Uninterrupted power supply control device and method of signal detection alarm system for ship |
| CN102394510A (en) * | 2011-09-30 | 2012-03-28 | 百度在线网络技术（北京）有限公司 | Efficient and reliable power supply architecture of data center information technology (IT) equipment |
| CN103944420B (en) * | 2013-01-18 | 2017-03-01 | 台达电子工业股份有限公司 | Power system and its control method |
| CN107994672A (en) * | 2016-10-27 | 2018-05-04 | 深圳市雄韬电源科技股份有限公司 | There is the standby power system of energy storage |
| CN109538807A (en) * | 2018-12-10 | 2019-03-29 | 深圳市冀顺业电子有限公司 | A kind of intelligent tap auto-off when power cut water installations |
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| CN1592031A (en) * | 2003-09-05 | 2005-03-09 | 飞瑞股份有限公司 | Uninterruption power source module parallel system and by-pass switching method thereof |
| CN1747280A (en) * | 2004-09-08 | 2006-03-15 | 台达电子工业股份有限公司 | Uninterrupted power supply system with network concentrator function |
| CN2888723Y (en) * | 2006-01-26 | 2007-04-11 | 青岛经济技术开发区创统科技发展有限公司 | Seamless auto switching device for dual-electric source |
| CN201146397Y (en) * | 2008-01-17 | 2008-11-05 | 孙毅彪 | Intelligent rapid emergency power supply system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1592031A (en) * | 2003-09-05 | 2005-03-09 | 飞瑞股份有限公司 | Uninterruption power source module parallel system and by-pass switching method thereof |
| CN1747280A (en) * | 2004-09-08 | 2006-03-15 | 台达电子工业股份有限公司 | Uninterrupted power supply system with network concentrator function |
| CN2888723Y (en) * | 2006-01-26 | 2007-04-11 | 青岛经济技术开发区创统科技发展有限公司 | Seamless auto switching device for dual-electric source |
| CN201146397Y (en) * | 2008-01-17 | 2008-11-05 | 孙毅彪 | Intelligent rapid emergency power supply system |
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| CN101888112A (en) | 2010-11-17 |
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