CN103532184A - Rapid charging device with boost-buck system - Google Patents
Rapid charging device with boost-buck system Download PDFInfo
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- CN103532184A CN103532184A CN201310445765.1A CN201310445765A CN103532184A CN 103532184 A CN103532184 A CN 103532184A CN 201310445765 A CN201310445765 A CN 201310445765A CN 103532184 A CN103532184 A CN 103532184A
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Abstract
The invention discloses a rapid charging device with a boost-buck system. The rapid charging device is connected between an external power supply and an external energy storage device, and comprises a control center unit, wherein the control center unit is connected with a power supply conversion circuit and an internally-arranged energy storage device; the external power supply is respectively and electrically connected with the internally-arranged energy storage device and the external energy storage device by the power supply conversion circuit; the control center unit is also connected with the external energy storage device and is used for detecting voltage of the external energy storage device; the internally-arranged energy storage device and the external energy storage device are connected with each other by a bidirectional boost-buck circuit; and the bidirectional boost-buck circuit is connected to the control center unit and is controlled by the control center unit. According to the rapid charging device with the boost-buck system, rapid charging can be realized; the bidirectional boost-buck circuit is arranged between the internally-arranged energy storage device and the external energy storage device so that the internally-arranged energy storage device can be used for conveniently charging the external energy storage device and can also realize depolarization and devulcanization of the external energy storage device.
Description
Technical field
The present invention relates to the charging device of storage battery, refer in particular to a kind of quick charge device with buck system.
Background technology
Conventional charging modes is all that the electric current with 0.1C-0.5C charges to energy storage device, the charging interval of this charging modes reaches several hours, in order to realize quick charge, must improve charging current, especially at the charging initial stage, charging current is generally at 2C-5C, conventional way is to be equipped with powerful Switching Power Supply to provide large electric current, cause charging device cost higher, and for battery is full of, in charging process, curent change is larger again, caused like this charging device power to change also greatly, electrical network is formed to larger fluctuation, affect operation of power networks, large electric current quick charge mode also can cause the problem of energy storage device serious polarization.For this reason, having publication number is that the Chinese patent of CN201616692U discloses a kind of energy-saving fast charging device, its composition comprises power transfer module, at least one quick charge type accumulator, a Power entry module and a control module, by accumulator and power transfer module, jointly for outside energy storage device, charge, do not need powerful Switching Power Supply, but the specific design that does not have Power entry module, in the situation that built-in accumulator and outside energy storage device exist larger pressure reduction to regulate, can not solve the problem of energy storage device polarization.
Summary of the invention
The object of this invention is to provide a kind of quick charge device with buck system, possess built-in energy storage device stepping functions, be convenient to built-in accumulator outside energy storage device is charged, there is the depolarising function to outside energy storage device simultaneously.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of quick charge device with buck system, be connected between external power source and outside energy storage device, comprise Liao Yi control centre unit, control centre unit has connected power-switching circuit and built-in energy storage device, described external power source has been electrically connected to respectively built-in energy storage device and outside energy storage device through power-switching circuit, described control centre unit has also connected outside energy storage device and has detected its voltage, described built-in energy storage device and outside energy storage device interconnect through a two-way step-up/step-down circuit, described Bidirectional up-down volt circuit is connected to described control centre unit and controlled by it.The controlled center cell of Bidirectional up-down volt circuit is controlled, control centre unit is the pressure reduction based on built-in energy storage device and outside energy storage device to the control of Bidirectional up-down volt circuit, if the voltage of built-in energy storage device is greater than the voltage of outside energy storage device, carry out step-down processing, otherwise the processing of boosting, make built-in energy storage device can keep outside energy storage device to charge, if the overtension of outside energy storage device is more than or equal to set point, passes through Bidirectional up-down volt circuit to built-in energy storage device discharge depolarization, and can not cause waste of energy.
As preferably, described Bidirectional up-down volt circuit has comprised the first electronic switch, the second electronic switch, the 3rd electronic switch, quadrielectron switch and a fast energy storage device, the first described electronic switch, fast energy storage device and the second electronic switch are connected to after connecting successively between described built-in energy storage device and the anodal circuit of outside energy storage device, the 3rd described electronic switch is connected to the first electronic switch and fast energy storage device tie point on the one hand, be connected on the other hand built-in energy storage device and outside energy storage device negative pole circuit, described quadrielectron switch is connected to the second electronic switch and fast energy storage device tie point on the one hand, also be connected on the other hand built-in energy storage device and outside energy storage device negative pole circuit, the control end of described electronic switch is connected to described control centre unit and receives the control signal that it sends.Four electronic switches and fast energy storage device form Bidirectional up-down volt circuit, if the voltage of built-in energy storage device is greater than the voltage of outside energy storage device, Ze You control centre opens unit the first electronic switch and the second electronic switch, the level and smooth step-down of built-in energy storage device process fast energy storage device is charged to outside energy storage device, if the voltage of built-in energy storage device is less than the voltage of outside energy storage device, first open the first electronic switch and quadrielectron switch, by built-in energy storage device, first fast energy storage device is charged, through after setting-up time, close the first electronic switch and quadrielectron switch, open the second electronic switch and the 3rd electronic switch, fast energy storage device after boosting charges to outside energy storage device, cooperation by four electronic switches and fast energy storage device has realized for the buck of built-in energy storage device to be processed, being convenient to built-in energy storage device charges to outside energy storage device, and when outside energy storage device appearance polarization, voltage rises while surpassing set point, first open the second electronic switch and the 3rd electronic switch, outside energy storage device first charges to fast energy storage device, and then open the first electronic switch and quadrielectron switch, by fast energy storage device, to built-in energy storage device is counter, filled, so both can also can not cause waste of energy to outside energy storage device discharge depolarization.
As preferably, described fast energy storage equipment is an inductance L 1.
As preferably, the first described electronic switch, the second electronic switch, the 3rd electronic switch and quadrielectron switch are field effect transistor, and the grid of four field effect transistor is connected to respectively described control centre unit reception control signal.
As further improvement, the drain electrode of the first electronic switch connects the positive pole of built-in energy storage device, the drain electrode of described the second electronic switch connects the positive pole of outside energy storage device, and the 3rd described electronic switch and the source electrode of quadrielectron switch are all connected on built-in energy storage device and outside energy storage device negative pole circuit.Sequencing control by control centre unit to field effect transistor, when outside energy storage device is discharged by step-up/step-down circuit, its inner electric discharge negative pulse that produces, can play unpolarized effect, accelerated charging process, and can remove the capacity attenuation that storage battery vulcanization phenomenon causes.
As preferably, described control centre unit comprises that voltage detector has connected respectively built-in energy storage device and outside energy storage device.Control centre unit needs to detect in real time the voltage of built-in energy storage device and outside energy storage device, by voltage detector, completes.
Adopt after technique scheme, the present invention has following outstanding advantages: external power source and built-in energy storage device charge to outside energy storage device simultaneously, realize quick charge, between built-in energy storage device and outside energy storage device, be provided with Bidirectional up-down volt circuit, when having facilitated built-in energy storage device to charge to outside energy storage device, can also realize outside energy storage device depolarising and devulcanization.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the concrete connection layout of Bidirectional up-down volt circuit of the present invention.
Embodiment
As shown in Figure 1, a kind of quick charge device with buck system, this device is connected between external power source and outside energy storage device, comprise Liao Yi control centre unit, control centre unit has connected power-switching circuit and built-in energy storage device, described external power source has been electrically connected to respectively built-in energy storage device and outside energy storage device through power-switching circuit, before outside energy storage device not being charged, external power source is first to built-in energy storage device charging, in the present embodiment, external power source can be mains supply, and power-switching circuit realization is the functions such as rectification step-down, that ripe prior art repeats no more in this article, when outside energy storage device is charged, by external power source and built-in energy storage device simultaneously to its charging, realized quick charge, described built-in energy storage device and outside energy storage device interconnect through a two-way step-up/step-down circuit, described Bidirectional up-down volt circuit is connected to described control centre unit and controlled by it, owing to there is pressure reduction in built-in energy storage device and outside energy storage device, in order to realize built-in energy storage device, to outside energy storage device, charge, Bidirectional up-down volt circuit need to be set built-in energy storage device is carried out to buck processing, and by Bidirectional up-down volt circuit, outside energy storage device can also be to built-in energy storage device reverse charging, outside energy storage device is carried out to depolarising processing, also saved electric energy.
The voltage signal of built-in energy storage device and outside energy storage device is gathered and is calculated accordingly by control centre unit, so described control centre unit comprises voltage detector, has connected respectively built-in energy storage device and outside energy storage device.About control centre unit and voltage detector, are all ripe prior aries, also repeated no more in this article.
Referring to Fig. 2, described Bidirectional up-down volt circuit has comprised the first electronic switch Q1, the second electronic switch Q2, the 3rd electronic switch Q3, quadrielectron switch Q4 and a fast energy storage device L1, in the present embodiment, what described fast energy storage equipment adopted is inductance, and four electronic switches all adopt field effect transistor, inductance and field effect transistor are all voltage control devices, are applicable to the present invention, and the grid of four field effect transistor is connected to respectively described control centre unit reception control signal.The first described electronic switch Q1, after connecting successively, fast energy storage device L1 and the second electronic switch Q2 be connected between described built-in energy storage device and the anodal circuit of outside energy storage device, the 3rd described electronic switch Q3 is connected to the first electronic switch Q1 and fast energy storage device L1 tie point on the one hand, be connected on the other hand built-in energy storage device and outside energy storage device negative pole circuit, described quadrielectron switch Q4 is connected to the second electronic switch Q2 and fast energy storage device tie point on the one hand, also be connected on the other hand built-in energy storage device and outside energy storage device negative pole circuit.
The operation principle of Bidirectional up-down volt circuit: if the voltage of built-in energy storage device is greater than the voltage of outside energy storage device, Ze You control centre opens unit the first electronic switch Q1 and the second electronic switch Q2, the level and smooth step-down of built-in energy storage device process fast energy storage device L1 is charged to outside energy storage device, if the voltage of built-in energy storage device is less than the voltage of outside energy storage device, first open the first electronic switch Q1 and quadrielectron switch Q4, by built-in energy storage device, first fast energy storage device L1 is charged, through after setting-up time, close the first electronic switch Q1 and quadrielectron switch Q4, open the second electronic switch Q2 and the 3rd electronic switch Q3, fast energy storage device after boosting charges to outside energy storage device, cooperation by four electronic switches and fast energy storage device L1 has realized for the buck of built-in energy storage device to be processed, being convenient to built-in energy storage device charges to outside energy storage device, and when outside energy storage device appearance polarization, voltage rises while surpassing set point, first open the second electronic switch Q2 and the 3rd electronic switch Q3, outside energy storage device first charges to fast energy storage device, and then open the first electronic switch Q1 and quadrielectron switch Q4, by fast energy storage device, to built-in energy storage device is counter, filled, so both can be to outside energy storage device discharge depolarization, property in the time of can utilizing in addition outside energy storage device device depolarising, can not cause waste of energy.
In the situation that externally energy storage device is lead acid accumulator, in order to play the effect of devulcanization, the drain electrode of the first electronic switch Q1 connects the positive pole of built-in energy storage device, the drain electrode of described the second electronic switch Q2 connects the positive pole of outside energy storage device, the 3rd described electronic switch Q3 and the source electrode of quadrielectron switch Q4 are all connected on built-in energy storage device and outside energy storage device negative pole circuit, because four electronic switch pins coordinate, can pass through the sequencing control of control centre unit to field effect transistor, when outside energy storage device is discharged by step-up/step-down circuit, its inner electric discharge negative pulse that produces, can play unpolarized effect, accelerated charging process, and can remove the capacity attenuation that storage battery vulcanization phenomenon causes.
Except above preferred embodiment, the present invention also has other execution mode, and those skilled in the art can make according to the present invention various changes and distortion, only otherwise depart from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (6)
1. the quick charge device with buck system, be connected between external power source and outside energy storage device, comprise Liao Yi control centre unit, control centre unit has connected power-switching circuit and built-in energy storage device, described external power source has been electrically connected to respectively built-in energy storage device and outside energy storage device through power-switching circuit, described control centre unit has also connected outside energy storage device and has detected its voltage, it is characterized in that: described built-in energy storage device and outside energy storage device interconnect through a two-way step-up/step-down circuit, described Bidirectional up-down volt circuit is connected to described control centre unit and controlled by it.
2. the quick charge device with buck system according to claim 1, it is characterized in that: described Bidirectional up-down volt circuit has comprised the first electronic switch, the second electronic switch, the 3rd electronic switch, quadrielectron switch and a fast energy storage device, the first described electronic switch, fast energy storage device and the second electronic switch are connected to after connecting successively between described built-in energy storage device and the anodal circuit of outside energy storage device, the 3rd described electronic switch is connected to the first electronic switch and fast energy storage device tie point on the one hand, be connected on the other hand built-in energy storage device and outside energy storage device negative pole circuit, described quadrielectron switch is connected to the second electronic switch and fast energy storage device tie point on the one hand, also be connected on the other hand built-in energy storage device and outside energy storage device negative pole circuit, the control end of described electronic switch is connected to described control centre unit and receives the control signal that it sends.
3. the quick charge device with buck system according to claim 2, is characterized in that: described fast energy storage equipment is an inductance (L1).
4. the quick charge device with buck system according to claim 2, it is characterized in that: the first described electronic switch, the second electronic switch, the 3rd electronic switch and quadrielectron switch are field effect transistor (Q1, Q2, Q3, Q4), the grid of four field effect transistor is connected to respectively described control centre unit reception control signal.
5. the quick charge device with buck system according to claim 4, it is characterized in that: the drain electrode of the first electronic switch connects the positive pole of built-in energy storage device, the drain electrode of described the second electronic switch connects the positive pole of outside energy storage device, and the 3rd described electronic switch and the source electrode of quadrielectron switch are all connected on built-in energy storage device and outside energy storage device negative pole circuit.
6. the quick charge device with buck system according to claim 1, is characterized in that: described control centre unit comprises that voltage detector has connected respectively built-in energy storage device and outside energy storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310445765.1A CN103532184A (en) | 2013-09-26 | 2013-09-26 | Rapid charging device with boost-buck system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310445765.1A CN103532184A (en) | 2013-09-26 | 2013-09-26 | Rapid charging device with boost-buck system |
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| CN201310445765.1A Pending CN103532184A (en) | 2013-09-26 | 2013-09-26 | Rapid charging device with boost-buck system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106786894A (en) * | 2016-12-26 | 2017-05-31 | 锐马（福建）电气制造有限公司 | One kind is based on binodal lithium battery fast charge method and electronic equipment charging module |
| CN107696899A (en) * | 2017-10-17 | 2018-02-16 | 李科 | A kind of quick charge device, system and charge control method |
| CN111404251A (en) * | 2020-03-20 | 2020-07-10 | 深圳供电局有限公司 | Charging device for electric equipment |
| CN114678908A (en) * | 2020-12-24 | 2022-06-28 | 荣耀终端有限公司 | Voltage conversion circuit, method and electronic equipment |
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| CN203039615U (en) * | 2012-11-28 | 2013-07-03 | 孟州卓伦光电科技有限公司 | Photovoltaic power generation energy management system based on super capacitor |
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Patent Citations (5)
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| JP2005057826A (en) * | 2003-08-01 | 2005-03-03 | Masayuki Hattori | Charger/discharger, charging/discharging method, and device for evaluating characteristics of secondary battery |
| JP2008086175A (en) * | 2006-09-29 | 2008-04-10 | Meidensha Corp | Charge/discharge device for battery or electric double-layer capacitor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106786894A (en) * | 2016-12-26 | 2017-05-31 | 锐马（福建）电气制造有限公司 | One kind is based on binodal lithium battery fast charge method and electronic equipment charging module |
| CN106786894B (en) * | 2016-12-26 | 2019-07-16 | 锐马（福建）电气制造有限公司 | One kind being based on binodal lithium battery fast charge method and electronic equipment charging module |
| CN107696899A (en) * | 2017-10-17 | 2018-02-16 | 李科 | A kind of quick charge device, system and charge control method |
| CN111404251A (en) * | 2020-03-20 | 2020-07-10 | 深圳供电局有限公司 | Charging device for electric equipment |
| CN114678908A (en) * | 2020-12-24 | 2022-06-28 | 荣耀终端有限公司 | Voltage conversion circuit, method and electronic equipment |
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Application publication date: 20140122 |