CN104810496A - Two-way crossover circuit - Google Patents
Two-way crossover circuit Download PDFInfo
- Publication number
- CN104810496A CN104810496A CN201410031458.3A CN201410031458A CN104810496A CN 104810496 A CN104810496 A CN 104810496A CN 201410031458 A CN201410031458 A CN 201410031458A CN 104810496 A CN104810496 A CN 104810496A
- Authority
- CN
- China
- Prior art keywords
- bridge group
- rectifier bridge
- circuit
- rectification bridge
- group
- Prior art date
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a two-way crossover circuit, which comprises an upper rectification bridge group and a lower rectification bridge group, wherein the upper rectification bridge group and the lower rectification bridge group are reversely connected in parallel, the upper rectification bridge group comprises 5 rectification bridges with direct current terminals connected in series, and the lower rectification bridge group comprises 5 rectification bridges with direct current terminals connected in series. According to the two-way crossover circuit of the present invention, the forward and reverse characteristics of the diode are utilized so as not to cause the short circuit of the storage battery being subjected to crossover and further ensure the circuit opening of the whole group of the storage batteries; and the wiring does not require distinguishing between the positive electrode and the negative electrode, such that the user does not have psychological pressure and does not worry about equipment accidents caused by wiring errors, and the two-way crossover circuit is especially for the primary skilled personnel so as to fundamentally ensure the safety.
Description
Technical field
The present invention relates to a kind of two-way bridge circuit, be particularly a kind ofly applied to the two-way bridge circuit that transformer station direct current system batteries is changed.
Background technology
Transformer station direct current system batteries, it is operating power unique after entirely standing in AC power disappearance, no matter whenever, batteries all can not depart from direct current system, but because the reason such as the manufacturing process of storage battery own, operation maintenance be improper, there will be the problems such as indivedual storage battery premature aging or damage.For indivedual problematic storage battery, conventional method adopts the storage battery of same model to be directly parallel in the two ends damaging storage battery, changes it.The drawback but using same model storage battery to carry out changing may produce larger circulation when being the parallel connection of new and old storage battery, and operation easier is relatively large simultaneously.
In recent years due to the development of semiconductor technology, the method generally adopting mninidiode to substitute storage battery carries out the replacing of single-unit storage battery, and reliability and fail safe are improved.But use mninidiode to carry out cross-over connection, due to the unilateral conduction of diode, if anisotropy during cross-over connection, can cause by the storage battery direct short-circuit of cross-over connection, and cause whole batteries to open a way, cannot provide power supply for direct current system, consequence is quite serious.
As shown in Figure 1 and Figure 2, use single diode cross-over connection, after exact connect ion, the reverse characteristic of diode can stop by the short circuit of cross-over connection storage battery, and forward characteristic can ensure that whole batteries loop is unimpeded, can not affect the power supply to load; If but after incorrect link, namely diode direction connects instead, the reverse characteristic of diode stops whole batteries loop conducting, and forward characteristic causes by the short circuit of cross-over connection storage battery, and consequence is quite serious.
Summary of the invention
A kind of storage battery that can be 2V to monomer voltage is the object of the present invention is to provide not have a power failure the two-way bridge circuit changed.
For solving the problems of the technologies described above, the two-way bridge circuit of the present invention, comprising: the upper rectifier bridge group of reverse parallel connection and lower rectifier bridge group; The rectifier bridge that wherein said upper rectifier bridge group is connected by multiple DC terminal forms, and the rectifier bridge that described lower rectifier bridge group is connected by multiple DC terminal forms.
The rectifier bridge that described upper rectifier bridge group is connected by five DC terminal forms.The rectifier bridge that described lower rectifier bridge group is connected by five DC terminal forms.
The two-way bridge circuit of the present invention utilizes forward and reverse characteristic of diode, namely can not cause by the short circuit of cross-over connection storage battery, can ensure that again whole group storage battery is not opened a way.Because wiring does not need to distinguish both positive and negative polarity, user, without psychological pressure, does not worry that false wiring causes equipment breakdown, is specially adapted to elementary skill, fundamentally ensures safety.
Accompanying drawing explanation
Fig. 1 is single diode forward cross-over connection schematic diagram;
Fig. 2 is single diode reverse cross-over connection schematic diagram;
Fig. 3 is the two-way bridge circuit schematic diagram of the present invention;
Fig. 4 is that the two-way bridge circuit of the present invention uses schematic diagram.
Description of reference numerals in the two-way bridge circuit accompanying drawing of the present invention:
The two-way bridge circuit of rectifier bridge group 3-under 1-upper rectifier bridge group 2-
4-storage battery to be replaced
Embodiment
Below in conjunction with accompanying drawing, the two-way bridge circuit of the present invention is described in further detail.
Full wave type rectifier bridge is the vice-side winding and four diodes that utilize transformer, makes in the positive and negative half cycle of AC power, the load of rectification circuit is all the constant pulsating dc voltage in direction and electric current.
As shown in Figure 3, Figure 4, the two-way bridge circuit of the present invention, rectifier bridge has four terminals, be respectively two ac input ends and two DC output ends, using direct current negative pole end as input, direct-flow positive pole end, as output, exchanges end and does not connect, the wiring that inner four diodes are in parallel again after namely forming series connection between two, the rectifier bridge of then five DC terminal series connection forms rectifier bridge group 1 and lower rectifier bridge group 2.Rectifier bridge is equivalent to a diode to see, in parameter, forward conduction electric current and reverse cut-ff voltage double, and reliability is improved.
During work, the forward voltage drop of upper rectifier bridge group 1 and lower rectifier bridge group 2 is about 7V, oppositely ends, and in fact, the general each cross-over connection three of two-way bridge circuit 3 crossover operation saves storage battery, the joint storage battery 4 to be replaced in the middle of changing.Flow to from battery charging, owing to being about 6V by 3 joint storage battery total voltages of cross-over connection, not reaching the conducting voltage of rectifier bridge group 1, can not short circuit be caused, can carry out safely disconnecting storage battery.From batteries discharge stream to, whole group storage battery forms loop by lower rectifier bridge group 2, can not cause open circuit.Due to upper rectifier bridge group 1 and lower rectifier bridge group 2 just the same, namely realize two-way cross-over connection.
Below the preferred embodiment of the invention is illustrated, but the invention is not limited to embodiment, those of ordinary skill in the art also can make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (3)
1. two-way bridge circuit, is characterized in that, comprising: the upper rectifier bridge group of reverse parallel connection and lower rectifier bridge group; Wherein
The rectifier bridge that described upper rectifier bridge group is connected by multiple DC terminal forms, and the rectifier bridge that described lower rectifier bridge group is connected by multiple DC terminal forms.
2. two-way bridge circuit according to claim 1, is characterized in that, the rectifier bridge that described upper rectifier bridge group is connected by five DC terminal forms.
3. two-way bridge circuit according to claim 1, is characterized in that, the rectifier bridge that described lower rectifier bridge group is connected by five DC terminal forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031458.3A CN104810496A (en) | 2014-01-23 | 2014-01-23 | Two-way crossover circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031458.3A CN104810496A (en) | 2014-01-23 | 2014-01-23 | Two-way crossover circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104810496A true CN104810496A (en) | 2015-07-29 |
Family
ID=53695155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410031458.3A Pending CN104810496A (en) | 2014-01-23 | 2014-01-23 | Two-way crossover circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104810496A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201178117Y (en) * | 2008-03-16 | 2009-01-07 | 太涛见 | Single accumulator on-line changing apparatus |
| CN102185365A (en) * | 2011-05-27 | 2011-09-14 | 北京欧满德科技发展有限公司 | Charging circuit for equalizing activation of multi-section series lithium ion battery pack and battery pack |
| CN103138386A (en) * | 2013-03-27 | 2013-06-05 | 国家电网公司 | Storage battery overhauling bypass tool |
| CN203104103U (en) * | 2013-03-27 | 2013-07-31 | 国家电网公司 | Bypass tool for examining and repairing storage battery |
| CN203368136U (en) * | 2013-08-14 | 2013-12-25 | 北京时空科技有限公司 | AC/DC power supply non-delay switching system |
-
2014
- 2014-01-23 CN CN201410031458.3A patent/CN104810496A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201178117Y (en) * | 2008-03-16 | 2009-01-07 | 太涛见 | Single accumulator on-line changing apparatus |
| CN102185365A (en) * | 2011-05-27 | 2011-09-14 | 北京欧满德科技发展有限公司 | Charging circuit for equalizing activation of multi-section series lithium ion battery pack and battery pack |
| CN103138386A (en) * | 2013-03-27 | 2013-06-05 | 国家电网公司 | Storage battery overhauling bypass tool |
| CN203104103U (en) * | 2013-03-27 | 2013-07-31 | 国家电网公司 | Bypass tool for examining and repairing storage battery |
| CN203368136U (en) * | 2013-08-14 | 2013-12-25 | 北京时空科技有限公司 | AC/DC power supply non-delay switching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |
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| WD01 | Invention patent application deemed withdrawn after publication |