CN103151761A - Novel highly-intelligent balanced protection plate - Google Patents
Novel highly-intelligent balanced protection plate Download PDFInfo
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- CN103151761A CN103151761A CN2013101070473A CN201310107047A CN103151761A CN 103151761 A CN103151761 A CN 103151761A CN 2013101070473 A CN2013101070473 A CN 2013101070473A CN 201310107047 A CN201310107047 A CN 201310107047A CN 103151761 A CN103151761 A CN 103151761A
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Abstract
The invention discloses a novel highly-intelligent balanced protection plate, which comprises a testing center, a control unit and an energy balancing module, wherein the testing center is in both-way communication connection with the energy balancing module; the energy balancing module is in both-way communication connection with the control unit; the testing center adopts a high-precision integrated power supply management chip; and the control unit consists of a MOS (metal oxide semiconductor) tube. The novel highly-intelligent balanced protection plate has the beneficial effects that besides the basic functions of overcharge, overdischarge, overcurrent and short-circuit protection, the novel highly-intelligent balanced protection plate has the function that energy capable of being utilized in a battery pack is utilized in a limited manner to the maximum limit, each battery cell of the battery pack can be completely charged and discharged, a remarkable balancing effect is achieved, the service life and the appropriate storage period of the battery pack are prolonged in a limited manner; and a balancing circuit is started only when the battery cells have problems in consistency and the two conditions are satisfied, so the influence of the balancing circuit over the battery cells is reduced.
Description
Technical field
The present invention relates to the lithium ion battery manufacture technology field, particularly relate to a kind of novel high intelligent equalization baffle.
Background technology
The many merits such as lithium ion battery is large because of stored energy capacitance, long service life, clean environment firendly, energy volume ratio are large so be widely used in all trades and professions, become the main product of battery gradually.Yet the problems such as the battery capacity that during because of monomer difference or longer-term storage, the self-discharge rate difference of battery causes, cycle life need peripheral electronic circuitry that it is regulated and controled, and peripheral electronic circuitry is our usually said baffle.The traditional protection plate only carries out charge balancing to it in charging latter stage, and time for balance is short, balanced heating damages electronic devices and components and euqalizing current is less, DeGrain.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art; the invention provides a kind of novel high intelligent equalization baffle; this baffle has solved the traditional protection plate and only latter stage it has been carried out charge balancing in charging, and time for balance is short, balanced heating damages the baffle electronic devices and components, euqalizing current is less, DeGrain and as long as the problems such as equilibrium are all opened in charging.
The technical solution adopted in the present invention is: novel high intelligent equalization baffle; comprise inspection center, control unit and balancing energy module; described inspection center is connected with the two-way communication of balancing energy module; described balancing energy module is connected with the control unit two-way communication; described inspection center adopts high accuracy integrated power supply managing chip, and described control unit is comprised of metal-oxide-semiconductor.
As preferably, the model that described high accuracy integrated power supply managing chip adopts is AXP171.
Compared with prior art, the invention has the beneficial effects as follows: basic overcharge except possessing, cross and put, overcurrent, short-circuit protection, limitedly to greatest extent utilize available energy in battery pack.The every economize on electricity core of battery pack is is all discharged and recharged fully, and portfolio effect is remarkable, limited prolongation battery pack useful life and suitable standing time; Equilibrium just can be opened when the battery core consistency goes wrong and meet above-mentioned two conditions, and reducing equalizing circuit affects battery core.
Description of drawings
Fig. 1 is system construction drawing of the present invention.
Embodiment
In order more clearly to understand technical scheme of the present invention, the present invention is further described below in conjunction with accompanying drawing.
Novel high intelligent equalization baffle of the present invention; comprise inspection center, control unit and balancing energy module; described inspection center is connected with the two-way communication of balancing energy module; described balancing energy module is connected with the control unit two-way communication; described inspection center adopts high accuracy integrated power supply managing chip; described control unit is comprised of metal-oxide-semiconductor, and the model that described high accuracy integrated power supply managing chip adopts is AXP171.Inspection center also comprises auxiliary element, the built-in high-accuracy voltage detecting circuit of high accuracy integrated power supply managing chip (IC) overcharges, overdischarge, electric current excessive (overcurrent) during discharge, the peripheral circuit short circuit all can accurately detect, and drives corresponding electronic device action; There are input, output current and time of repose supervisory circuit in protection IC inside, and battery pack current and time of repose are precisely detected.Protection IC issues right instructions according to Monitoring Data, and order energy back module and corresponding device move; Auxiliary element is comprised of resistance, electric capacity, renewable type fuse etc., and in whole testing process, auxiliary element auxiliary protection IC monitors the battery pack core situation of respectively economizing on electricity; When the appearance of battery pack battery core was abnormal, protection IC issued at a high speed corresponding instruction accurately; Moved rapidly by auxiliary element, battery pack is made corresponding protection.
Control unit is taken as the leading factor with metal-oxide-semiconductor, and electronic device mix proportion, MOS FET be regarded it as a special switch so long in electronic circuit.Battery pack is in carrying out the charge and discharge process, and protection IC monitors the battery pack core that respectively economizes on electricity; When battery pack was normally moved, the rapid issuing command of protection IC was to metal-oxide-semiconductor, and the metal-oxide-semiconductor grid G can obtain a high level, switch ways between D.S; Electric current passes through between D.S, otherwise electric current can not pass through.
Traditional protection plate balanced way is to utilize resistance to consume energy latter stage in charging; Be all power resistors in parallel of the every economize on electricity core of battery pack, the battery core that at first reaches certain voltage carry out is reduced charging current even without the balanced way of charging current.This balanced way time for balance is short, euqalizing current is less, DeGrain.
Equalizing system in novel high intelligent equalization baffle adopts Based Intelligent Control, to carrying out the syllogic action after battery power discharge process and Cross prevention, is respectively the excess energy stage of transferring, makeup energy stage, energy recovery preliminary filling stage.Reduce to greatest extent energy loss in transfer process, improve energy and shift utilization ratio.Make the core that respectively economizes on electricity in battery pack all be in discharge near complete emptying state after Cross prevention, the core that respectively economizes on electricity when being convenient to batteries charging all can be full of electricity fully; Preliminary filling process after energy reclaims can suitably increase battery pack standing time, avoids standing time partially long battery pack the heavy losses phenomenon to occur.
Equalizing system in novel high intelligent equalization baffle adopts Based Intelligent Control, to carrying out the syllogic action after battery power discharge process and Cross prevention, is respectively the excess energy stage of transferring, makeup energy stage, energy recovery preliminary filling stage.Detailed content is as follows:
Transfer the excess energy stage:
novel equalizing system is carried out equilibrium latter stage to battery power discharge, when battery pack is in discharge process, when certain economize on electricity core voltage is down to certain value and single-unit ceiling voltage and minimum voltage pressure reduction when being not less than 50mV, after satisfying above-mentioned two conditions, intelligent IC is to the equalizing system issuing command, make it carry out work respective switch Q2 ... the Qn conducting, energy transfer module in equalizing system according to the instruction of intelligent IC to voltage, the the 2nd to the n economize on electricity core that capacity relative is higher carries out portion of energy to be shifted, the portion of energy that is about to the 2nd to n economize on electricity core is transferred in energy transfer module, switch Q2 subsequently ... Qn closes.(take the ternary battery core as example, balanced cut-in voltage is set as is down to 3.2V, Cross prevention voltage 2.75V; With first segment battery core low voltage, residue battery core voltage is higher is example)
The makeup energy stage:
The intelligent IC issuing command makes switch Q1 conducts energy shift module not charge higher than the electric current of 2A the 1st economize on electricity core to low-voltage, until the battery power discharge Cross prevention.This energy transfer module adopts super low-power consumption, super-low resistance device to form, and reduces to greatest extent energy loss in transfer process, improves energy and shifts utilization ratio.
Energy reclaims the preliminary filling stage:
After the battery pack Cross prevention, intelligent IC is assigned new instruction to equalizing system, impel it to work on and carry out voltage, the higher battery core of capacity approximately that the 1A current discharge reclaims into energy transfer module, the Cross prevention battery core capacity of emitting equates until emit in capacity and battery pack at first; Prerequisite be continue 1A discharge battery core voltage must be higher than single-unit Cross prevention voltage, if stop lower than this work step.Intelligent IC issuing command after above-mentioned work step stops makes the energy transfer module self-energy with equal current system, the core that respectively economizes on electricity in battery pack be carried out precharge.Above-mentioned high power capacity battery core energy is reclaimed makes the core that respectively economizes on electricity in battery pack all be in discharge near complete emptying state, and the core that respectively economizes on electricity when being convenient to batteries charging all can be full of electricity fully; Preliminary filling process after energy reclaims can suitably increase battery pack standing time, avoids standing time partially long battery pack the heavy losses phenomenon to occur.
The above is only better embodiment of the present invention, therefore all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in patent claim of the present invention.
Claims (2)
1. novel high intelligent equalization baffle; it is characterized in that: comprise inspection center, control unit and balancing energy module; described inspection center is connected with the two-way communication of balancing energy module; described balancing energy module is connected with the control unit two-way communication; described inspection center adopts high accuracy integrated power supply managing chip, and described control unit is comprised of metal-oxide-semiconductor.
2. novel high intelligent equalization baffle according to claim 1 is characterized in that: the model that described high accuracy integrated power supply managing chip adopts is AXP171.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101070473A CN103151761A (en) | 2013-03-29 | 2013-03-29 | Novel highly-intelligent balanced protection plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101070473A CN103151761A (en) | 2013-03-29 | 2013-03-29 | Novel highly-intelligent balanced protection plate |
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| CN103151761A true CN103151761A (en) | 2013-06-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426176A (en) * | 2013-08-28 | 2015-03-18 | 国家电网公司 | Whole-vehicle-level battery management system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186868C (en) * | 2003-09-05 | 2005-01-26 | 北京交通大学 | Automatic balancing device for series storage battery |
| CN202084959U (en) * | 2011-05-18 | 2011-12-21 | 上海恒动汽车电池有限公司 | Lithium-ion battery pack balancing system |
| CN102427255A (en) * | 2011-10-28 | 2012-04-25 | 东风汽车公司 | Method and device for automatically equalizing voltages of power battery groups |
| CN203119454U (en) * | 2013-03-29 | 2013-08-07 | 山东润峰集团新能源科技有限公司 | Novel highly-intelligent balancing protection board |
-
2013
- 2013-03-29 CN CN2013101070473A patent/CN103151761A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186868C (en) * | 2003-09-05 | 2005-01-26 | 北京交通大学 | Automatic balancing device for series storage battery |
| CN202084959U (en) * | 2011-05-18 | 2011-12-21 | 上海恒动汽车电池有限公司 | Lithium-ion battery pack balancing system |
| CN102427255A (en) * | 2011-10-28 | 2012-04-25 | 东风汽车公司 | Method and device for automatically equalizing voltages of power battery groups |
| CN203119454U (en) * | 2013-03-29 | 2013-08-07 | 山东润峰集团新能源科技有限公司 | Novel highly-intelligent balancing protection board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426176A (en) * | 2013-08-28 | 2015-03-18 | 国家电网公司 | Whole-vehicle-level battery management system |
| CN104426176B (en) * | 2013-08-28 | 2017-03-15 | 国家电网公司 | A kind of car load level battery management system |
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Application publication date: 20130612 |