CN1261473A - Uninterruptible power supply - Google Patents

Uninterruptible power supply Download PDF

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Publication number
CN1261473A
CN1261473A CN98806598A CN98806598A CN1261473A CN 1261473 A CN1261473 A CN 1261473A CN 98806598 A CN98806598 A CN 98806598A CN 98806598 A CN98806598 A CN 98806598A CN 1261473 A CN1261473 A CN 1261473A
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CN
China
Prior art keywords
over cap
batteries
power supply
take
takes
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Pending
Application number
CN98806598A
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Chinese (zh)
Inventor
安藤太郎
栗山茂三
山本学
有里孔宏
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN98806598A priority Critical patent/CN1261473A/en
Publication of CN1261473A publication Critical patent/CN1261473A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

An uninterruptible power supply carrying a battery pack conductively connected to a power supply control section by means of a connector in a replaceable manner, wherein the battery pack and the power supply control section are housed in a main frame body having an opening for the battery pack and the opening can be opened or closed by a protective cover. The power supply has also a protective cover detachment detection switch for detecting detachment of the protective cover, and if detachment of the cover is detected by this switch during charging of the battery pack or during back-up power supply by the battery pack at the time of service interruption, an internal switching circuit of the power supply control section is forced into a substantially open state, or an alarm buzzer generates alarm.

Description

Uninterrupted power supply(ups)
Technical field
The present invention relates to a kind of uninterrupted power supply(ups) that is commonly referred to uninterruptible power system UPS (Uninterruptible PowerSystem), relate in particular in order then to replace batteries (battery pack) in the life of storage battery, make batteries under replaceable state, be connected such uninterrupted power supply(ups) with the power control part conduction through connector (connector).
Background technology
During power failure, continue the uninterrupted power supply(ups) (UPS) of power supply to the personal computer even load, in the time of most of, as stand-by power supply (batteries), can use the closed lead acid storage battery that can charge repeatedly, for example Japan's special permission disclosed patent gazette in the Room (spy opens flat 4-286862) has disclosed this uninterrupted power supply(ups).
Secondary cells such as closed lead acid storage battery, can be in time variation, because of service life, the time that makes it possible to stand-by power supply shortens, so recommend the replacement batteries of exceeding with 2-3 usually.
For above-mentioned reasons, most of uninterrupted power supply(ups)s in order to replace the batteries that battery life arrives, just will make batteries be connected with the power control part conduction under replaceable state through connector.
In the middle of the battery charging, charging current flow to batteries by power control part, especially under the batteries electric weight situation seldom, the charging current that is flow through is bigger, thereby take out batteries in this state, just can be between power control part and batteries as the connector position of conductive connection part electric arc (arc) takes place, connector is because the fusion of connector, welding and scrap in advance also need to replace connector.
And utilize when having a power failure in the middle of the stand-by power supply that above-mentioned batteries carries out, standby current flow to power control part by batteries, therefore takes out batteries when this kind state, just can interrupt stand-by power supply, can't realize uninterrupted power supply.And in this case, the connector position also has electric arc to produce, and connector is because the fusion of connector, welding and scrap in advance also need to replace connector.
The replacement of this connector, different with the replacement of simple batteries, from guaranteeing the viewpoint of UPS functional reliability, user side is difficult to carry out.
The present invention will remove the problems referred to above just, its purpose is, provide a kind of like this aspect the batteries replacement the good uninterrupted power supply(ups) of fail safe, utilize in the middle of battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, can take safety measures for the situation that will take out batteries, the prevention connector is scrapped ahead of time, or utilizes when having a power failure in the middle of the stand-by power supply that batteries carries out mistake that batteries is taken out and cause stand-by power supply to interrupt.
Summary of the invention
The available uninterrupted power supply(ups) of the present invention; the uninterrupted power supply(ups) that is connected with power control part conduction under replaceable state through connector for a kind of batteries; wherein; described batteries and described power control part are contained in has the batteries turnover with in the mainframe box of peristome; described batteries turnover can be opened and closed by over cap with peristome; have and detect the over cap that described over cap takes off and take off sense switch; in the middle of the described battery charging; utilize when perhaps having a power failure in the middle of the stand-by power supply that described batteries carries out; in case described over cap takes off sense switch and detects described over cap and take off; just make that described power control part internal switch circuit is mandatory to become actual open-circuit condition, the output of perhaps reporting to the police.
Therefore; utilize in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, in a single day over cap takes off, and just takes off sense switch by over cap and detects this situation; make that power control part internal switch circuit is mandatory to become actual open-circuit condition, the output of perhaps reporting to the police.
In a single day power control part internal switch circuit becomes actual open-circuit condition, in fact there is not charging and discharging currents to flow through between batteries and the power control part, so, even if batteries is taken out, the connector position does not produce electric arc yet, scrapping ahead of time of connector can not taken place.
Here in fact said, be meant to make that the switching frequency of internal switch circuit is zero, perhaps be low numerical value, so that be in the low current condition that the connector position does not produce electric arc near zero.
And, can be by the output prompting user that reports to the police, at current time, promptly utilize in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, stop batteries being taken out.
The available uninterrupted power supply(ups) of the present invention; the uninterrupted power supply(ups) that is connected with power control part conduction under replaceable state through connector for a kind of batteries; wherein; described batteries and described power control part are contained in has the batteries turnover with in the mainframe box of peristome; described batteries turnover can be opened and closed by over cap with peristome; have and detect the over cap that described over cap takes off and take off sense switch; and be located at described power control part internal switch circuit and batteries and connect charging and discharging currents disconnect between the used described connector; in the middle of the described battery charging; utilize when perhaps having a power failure in the middle of the stand-by power supply that described batteries carries out; in case described over cap takes off sense switch and detects described over cap and take off; just make described charging and discharging currents disconnect become open circuit, the output of perhaps reporting to the police.
Therefore; utilize in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, in a single day over cap takes off, and just takes off sense switch by over cap and detects this situation; the charging and discharging currents disconnect is so become open circuit, the output of perhaps reporting to the police.
In a single day the charging and discharging currents disconnect becomes open circuit, does not just have charging and discharging currents to flow through between batteries and the power control part, so even if batteries is taken out, the connector position does not produce electric arc yet, scrapping ahead of time of connector can not taken place.
And this uninterrupted power supply(ups) can be by the output prompting user that reports to the police, and at current time, promptly utilizes in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, and stops batteries being taken out.
In addition, the uninterrupted power supply(ups) of foregoing invention can be utilized when having a power failure in the middle of the stand-by power supply that above-mentioned batteries carries out, and takes off sense switch by above-mentioned over cap and detects above-mentioned over cap when taking off, the output of only reporting to the police.
Therefore, in this case, utilize during power failure in the middle of the stand-by power supply that batteries carries out, in a single day over cap takes off, and just takes off sense switch by over cap and detects this situation, so the output of only reporting to the police.Point out the user thus, keep the stand-by power supply state, and in the middle of stand-by power supply, stop batteries being taken out.
The available uninterrupted power supply(ups) of the present invention; the uninterrupted power supply(ups) that is connected with power control part conduction under replaceable state through connector for a kind of batteries; wherein; described batteries and described power control part are contained in has the batteries turnover with in the mainframe box of peristome; described batteries turnover can be opened and closed by over cap with peristome; have and described over cap is locked in make position forbids the over cap locking device that this over cap takes off with selectivity; utilize in the middle of the described battery charging or when having a power failure in the middle of the stand-by power supply that described batteries carries out, make described over cap be locked in make position by the over cap locking device.
Therefore, utilize in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, make described over cap be locked in make position by the over cap locking device.So, utilize in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, forbid over cap is taken off, therefore forbid taking out batteries.
In addition; the available uninterrupted power supply(ups) of the present invention; have and described over cap is locked in make position forbids the over cap locking device that this over cap takes off with selectivity; in the middle of the described battery charging; in case taking off sense switch by described over cap detects described over cap and takes off; just make that the internal switch circuit of described power control part is mandatory to become actual open-circuit condition; perhaps described charging and discharging currents disconnect becomes open circuit; and utilize when having a power failure in the middle of the stand-by power supply that described batteries carries out; detect described over cap and take off in case take off sense switch, then make described over cap be locked in make position by described over cap locking device by described over cap.
Therefore, in a single day over cap takes off in the middle of the battery charging, just takes off sense switch by over cap and detects this situation, makes that power control part internal switch circuit is mandatory to become actual open-circuit condition, and perhaps above-mentioned charging and discharging currents disconnect becomes open circuit.Therefore, in fact there is not charging and discharging currents to flow through between batteries and the power control part, so even if batteries is taken out, the connector position does not produce electric arc yet, scrapping ahead of time of connector can not taken place.
And utilize when having a power failure in the middle of the stand-by power supply that batteries carries out, make described over cap be locked in make position by the over cap locking device.So, utilize during power failure in the middle of the stand-by power supply that batteries carries out, forbid over cap is taken off, therefore forbid taking out batteries, can keep stand-by power supply.
In addition; the uninterrupted power supply(ups) of foregoing invention; can be in the middle of described battery charging or utilize when having a power failure in the middle of the stand-by power supply that described batteries carries out, detect described over cap and take off in case take off sense switch by described over cap, just alarm demonstration by display.
Therefore, utilize in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out,, just take off sense switch and detect this situation, and alarm demonstration by display by over cap in case take off over cap.Therefore, can be by alarm display reminding user, utilize in the middle of the battery charging or when having a power failure in the middle of the stand-by power supply that batteries carries out, stop to take out batteries.
Brief Description Of Drawings
Fig. 1 is the stereoscopic figure of signal uninterrupted power supply(ups) one embodiment of the present invention; Fig. 2 is the disposition-plan that its over cap of uninterrupted power supply(ups) of the present invention takes off sense switch and over cap locking device, and Fig. 3 is the circuit diagram of signal uninterrupted power supply(ups) one embodiment of the present invention.
The best mode that carries out an invention
With reference to Fig. 1~Fig. 3 preferred mode of the present invention is described.
Uninterrupted power supply(ups) of the present invention comprises: hold batteries 100 and power control part 50, positive position has the mainframe box 10 of batteries turnover with peristome 12; And can take off the over cap 14 that is installed in closed batteries turnover usefulness peristome 12 on the mainframe box 10.
Power control part 50 comprises: the input terminal 52 that connects commercially available AC power 1; The lead-out terminal 54 that connects the electrical equipment that needs uninterrupted power supply; Monitor the input voltage monitoring circuit 56 of input terminal 52 input voltages; The transformer 58 that an elementary side and input terminal 52 are connected with lead-out terminal 54; The switching circuit 60 that is connected, carries out AC-DC conversion and DC-AC conversion with 58 level one sides of transformer; And power circuit 62 etc., and has control circuit 64 by variable power switch frequency drives switching circuit 60.
Control circuit 64 is by importing an input voltage signal by input voltage monitoring circuit 56, judge normal condition (live state), power down mode, voltage signal by power circuit 62 input batteries 100, by current sensor 66 input charging and discharging currents signal, the switching frequencies of configuration switch circuit 60 in view of the above.
Therefore, under the normal condition, in a single day battery tension is lower than setting, just to batteries 100 chargings, and under the power down mode, can utilize batteries 100 to carry out stand-by power supply.
Batteries 100 has secondary cells 102 such as closed excide battery, through connector 104 under replaceable state with switching circuit 60 that is power control part 50 conductive connections.
The outstanding switch moving plate 16 that is formed with on the over cap 14.Switch moving plate 16 is installed on mainframe box 10 by over cap 14, passes the opening 18 that forms on the mainframe box 10.
Being fixed on switch substrate 20 on the mainframe box 10 is equipped with the over cap that utilizes optoelectronic switch and takes off sense switch 22; over cap takes off sense switch 22 and opens and closes by the switch moving plate 16 that passes opening 18 and project to mainframe box 10 1 sides, detects taking off of over cap 14.
Be connected with charging and discharging currents disconnect 68 between the internal switch circuit 60 of power control part 50 and the batteries connecting connector 104.
Control circuit 64 is connected with alarm buzzer 70, display 72 etc.
Mainframe box 10 is equipped with electromagnetic type locking device 24.Electromagnetic type locking device 24 is in order to prevent fault (fail safe); when no power, will lock bolt 26 and be embedded in the lockhole 28 that forms on the switch moving plate 16; forbid that over cap 14 takes off from mainframe box 10; to lock bolt 26 during energising and in the middle of lockhole 28, extract, take off from mainframe box 10 to allow over cap 14.
Control circuit 64 can be according to the combination of the charging and discharging currents signal of the input voltage signal of input voltage monitoring circuit 56 and current sensor 66, identification batteries 100 is in to be utilized when still having a power failure in the middle of the charging in the middle of the stand-by power supply that batteries 100 carried out, be in the middle of batteries 100 chargings, or utilize in the middle of the stand-by power supply that batteries 100 carried out this control in (1)~(4) below carrying out when having a power failure.
(1) in the middle of batteries 100 charging; over cap takes off sense switch 22 and in a single day detects over cap 14 and take off; just the switching frequency that makes current control division 50 internal switch circuit 60 is zero or approaches zero numerical value; make that internal switch circuit 60 is mandatory to become actual open-circuit condition; and utilize when having a power failure in the middle of the stand-by power supply that batteries 100 carried out; over cap takes off sense switch 22 and in a single day detects over cap 14 and take off, and then connects alarm buzzer 70 output of reporting to the police.
Utilize in the middle of batteries 100 charging or when having a power failure in the middle of the stand-by power supply that batteries 100 carried out, over cap takes off sense switch 22 and in a single day detects over cap 14 and take off, and just alarms demonstration on display 72.
Therefore, in the middle of batteries 100 chargings, take out batteries 100 again even if take off over cap 14, the connector position does not have electric arc to produce yet, and connector just can not scrapped ahead of time yet.
And utilize when having a power failure in the middle of the stand-by power supply that batteries 100 carried out; in a single day over cap 14 takes off; just can show by the warning output of alarm buzzer 70 or the alarm of display 72, stop to take out batteries 100 in the middle of the stand-by power supply that the prompting user utilizes batteries 100 to be carried out when having a power failure.
(2) in the middle of batteries 100 chargings; over cap takes off sense switch 22 and in a single day detects over cap 14 and take off; charging and discharging currents disconnect 68 just becomes open circuit; and utilize when having a power failure in the middle of the power backup power supply that batteries 100 carried out; over cap takes off sense switch 22 and in a single day detects over cap 14 and take off, and just connects alarm buzzer 70 output of reporting to the police.
Utilize in the middle of batteries 100 charging or when having a power failure in the middle of the stand-by power supply that batteries 100 carried out, over cap takes off sense switch 22 and in a single day detects over cap 14 and take off, and just alarms demonstration on display 72.
Therefore, in the middle of batteries 100 chargings, take out batteries 100 again even if take off over cap 14, the connector position does not have electric arc to produce yet, and connector just can not scrapped ahead of time yet.
And utilize when having a power failure in the middle of the stand-by power supply that batteries 100 carried out; in a single day over cap 14 takes off; just can show by the warning output of alarm buzzer 70 or the alarm of display 72, stop to take out batteries 100 in the middle of the stand-by power supply that the prompting user utilizes batteries 100 to be carried out when having a power failure.
(3) utilize in the middle of batteries 100 charging or when having a power failure in the middle of the stand-by power supply that batteries 100 carried out, forbid over cap 14 is taken off by electromagnetic type locking device 24.
Therefore, utilize in the middle of batteries 100 charging or when having a power failure in the middle of the stand-by power supply that batteries 100 carried out, can forbid batteries 100 is taken out, thereby can prevent the connector position to produce electric arc.And utilize when having a power failure in the middle of the stand-by power supply that batteries 100 carried out, can batteries 100 be taken out by forbidding, avoid the interruption of stand-by power supply, improve the functional reliability of UPS.
(4) in the middle of batteries 100 chargings; the switching frequency that makes power control part 50 internal switch circuit 60 is zero or approaching zero numerical value; make the internal switch circuit 60 mandatory open-circuit conditions that become; perhaps charging and discharging currents disconnect 68 becomes open circuit; and utilize when having a power failure in the middle of the stand-by power supply that batteries 100 carried out, then forbid over cap 14 is taken off by electromagnetic type locking device 24.
In the middle of batteries 100 charging, over cap takes off sense switch 22 and in a single day detects over cap 14 and take off, and just alarms demonstration on display 72.
Therefore, in the middle of batteries 100 chargings, take out batteries 100 again even if take off over cap 14, the connector position does not have electric arc to produce yet, and connector just can not scrapped ahead of time yet.
And utilize when having a power failure in the middle of the stand-by power supply that batteries 100 carried out, not only can forbid batteries 100 is taken out, prevention connector position produces electric arc, and can be by forbidding batteries 100 taking-ups, avoid the interruption of stand-by power supply, improve the functional reliability of UPS.
Industrial applicibility
In sum, uninterrupted power supply(ups) of the present invention can be replaced batteries, is applicable to individual calculus The uninterrupted power supply(ups) of machine etc.

Claims (10)

1. uninterrupted power supply(ups), batteries is connected with the power control part conduction under replaceable state through connector, it is characterized in that,
Described batteries and described power control part are contained in has the batteries turnover with in the mainframe box of peristome; described batteries turnover can be opened and closed by over cap with peristome; have and detect the over cap that described over cap takes off and take off sense switch; in the middle of the described battery charging; utilize when perhaps having a power failure in the middle of the stand-by power supply that described batteries carries out; in case described over cap takes off sense switch and detects described over cap and take off; just make that described power control part internal switch circuit is mandatory to become actual open-circuit condition, the output of perhaps reporting to the police.
2. uninterrupted power supply(ups) as claimed in claim 1 is characterized in that, utilizes during power failure in the middle of the stand-by power supply that described batteries carries out, and detects described over cap and takes off in case take off sense switch by described over cap, with regard to the output of only reporting to the police.
3. uninterrupted power supply(ups) as claimed in claim 1; it is characterized in that; in the middle of the described battery charging; perhaps utilize in the middle of the stand-by power supply that described batteries carries out; detect described over cap and take off in case take off sense switch, just on display, alarm demonstration by described over cap.
4. uninterrupted power supply(ups) as claimed in claim 1; it is characterized in that; have and described over cap is locked in make position forbids the over cap locking device that this over cap takes off with selectivity; in the middle of the described battery charging; in case taking off sense switch by described over cap detects described over cap and takes off; just make that the internal switch circuit of described power control part is mandatory to become actual open-circuit condition; and utilize when having a power failure in the middle of the stand-by power supply that described batteries carries out; detect described over cap and take off in case take off sense switch, then make described over cap be locked in make position by described over cap locking device by described over cap.
5. uninterrupted power supply(ups), batteries is connected with the power control part conduction under replaceable state through connector, it is characterized in that,
Described batteries and described power control part are contained in has the batteries turnover with in the mainframe box of peristome; described batteries turnover can be opened and closed by over cap with peristome; have and detect the over cap that described over cap takes off and take off sense switch; and be located at described power control part internal switch circuit and batteries and connect charging and discharging currents disconnect between the used described connector; in the middle of the described battery charging; utilize when perhaps having a power failure in the middle of the stand-by power supply that described batteries carries out; in case described over cap takes off sense switch and detects described over cap and take off; just make described charging and discharging currents disconnect become open circuit, the output of perhaps reporting to the police.
6. uninterrupted power supply(ups) as claimed in claim 5; it is characterized in that; in the middle of the described battery charging; perhaps utilize in the middle of the stand-by power supply that described batteries carries out; detect described over cap and take off in case take off sense switch, just on display, alarm demonstration by described over cap.
7. uninterrupted power supply(ups) as claimed in claim 5 is characterized in that, utilizes during power failure in the middle of the stand-by power supply that described batteries carries out, and detects described over cap and takes off in case take off sense switch by described over cap, with regard to the output of only reporting to the police.
8. uninterrupted power supply(ups) as claimed in claim 5; it is characterized in that; have and described over cap is locked in make position forbids the over cap locking device that this over cap takes off with selectivity; in the middle of the described battery charging; in case taking off sense switch by described over cap detects described over cap and takes off; just make described charging and discharging currents disconnect become open-circuit condition; and utilize when having a power failure in the middle of the stand-by power supply that described batteries carries out; detect described over cap and take off in case take off sense switch, then make described over cap be locked in make position by described over cap locking device by described over cap.
9. uninterrupted power supply(ups) as claimed in claim 8 is characterized in that, in the middle of the described battery charging, detects described over cap and takes off in case take off sense switch by described over cap, just alarms demonstration on display.
10. uninterrupted power supply(ups), batteries is connected with the power control part conduction under replaceable state through connector, it is characterized in that,
Described batteries and described power control part are contained in has the batteries turnover with in the mainframe box of peristome; described batteries turnover can be opened and closed by over cap with peristome; have and described over cap is locked in make position forbids the over cap locking device that this over cap takes off with selectivity; in the middle of the described battery charging; utilize when perhaps having a power failure in the middle of the stand-by power supply that described batteries carries out, make described over cap be locked in make position by described over cap locking device.
CN98806598A 1998-04-27 1998-04-27 Uninterruptible power supply Pending CN1261473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98806598A CN1261473A (en) 1998-04-27 1998-04-27 Uninterruptible power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN98806598A CN1261473A (en) 1998-04-27 1998-04-27 Uninterruptible power supply

Publications (1)

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CN1261473A true CN1261473A (en) 2000-07-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN98806598A Pending CN1261473A (en) 1998-04-27 1998-04-27 Uninterruptible power supply

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101803148B (en) * 2007-07-18 2014-06-11 谷歌公司 Power supply for a data center

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101803148B (en) * 2007-07-18 2014-06-11 谷歌公司 Power supply for a data center

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