CN107591579A - A kind of novel power battery group protection board - Google Patents
A kind of novel power battery group protection board Download PDFInfo
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- CN107591579A CN107591579A CN201610561926.7A CN201610561926A CN107591579A CN 107591579 A CN107591579 A CN 107591579A CN 201610561926 A CN201610561926 A CN 201610561926A CN 107591579 A CN107591579 A CN 107591579A
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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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Abstract
The present invention relates to a kind of battery protecting plate, more particularly, to a kind of lithium battery group or graphene battery group or graphene super capacitance cell group protection board, belongs to power battery pack equalizaing charge and balanced discharge protection field.Including：Auxiliary Power Units (1), microprocessor control unit (2), voltage polling unit (3), charging and discharging circuit controls unit (4), driver element (5), power battery pack unit (6), charger unit (7), it is characterised in that：The novel power battery group protection board also includes：Equalizaing charge, balanced discharge circuit unit (8), the beneficial effects of the invention are as follows：Circuit is simple, and manufacturing cost is low, and electrokinetic cell combo is easy, and battery variety adapts to wide, automaticity height, suitable large-scale industrial production.It can ensure that and every piece of battery in battery pack is charged to higher limit in charging, one piece of over-charging of battery of any of which or charge less will not be made again；Every piece of battery in battery pack can be fully put into lower limit during electric discharge, but will not cross one piece of battery of any of which and put.
Description
Technical field
The present invention relates to a kind of battery protecting plate, more particularly, to a kind of lithium battery group or graphene battery group or graphene
Super capacitance cell group protection board, belong to power battery pack equalizaing charge and balanced discharge protection field.
Technical background
As the present situation of international non-renewable energy scarcity and the continuous aggravation of problem of environmental pollution, use are new
Long-acting, free of contamination electrokinetic cell, which is the traditional fuel engines of substitution, is used as the electric automobile of power, electric trolley, electronic
The inexorable trend of all electric vehicle industry developments such as bicycle.Especially lithium battery group and more promising graphene
Battery pack or graphene super capacitance cell group, the application scenario in future are more wide.Due to it have small volume, it is in light weight,
Voltage is high, higher than energy, power is big, high/low temperature strong adaptability, green, memory-less effect, pollution-free, self discharge are small and
Many advantages, such as service life is long, the main flow for making it to be increasingly becoming power battery pack, still, regardless of made of material
Power battery pack, be required to charging, discharge prevention plate it is matched.Now illustrate existing disclosed use by taking lithium battery group as an example
The drawbacks of battery pack protection plate is present：Professional knows, the electrical source of power voltage needed for electric automobile is in more than 300V, and this is just
Need up to a hundred pieces of core of lithium ion cell monomer series-connected and used into battery pack, in order to increase battery capacity, after battery pack parallel connection again
Connect some groups, to provide sufficiently high voltage and sufficiently large electric current.But due to producing and processing the limitation of technical merit,
All technical and physical characteristic of the every piece of battery monomer when dispatching from the factory can not possibly be completely the same, and are using process
In, battery behavior can also influence with many factors such as external environments, and therefore, battery pack certainly exists inconsistency at work
Problem.Again because the internal energy density of lithium battery group is high, under overcharged state, internal heat accumulation excessively is possible to damage
Hinder battery performance and service life, the hidden danger such as on fire, blast can be also caused when serious, directly affect the personal safety of user.
The inconsistency of battery pack in the course of the work constrains the release of its ceiling capacity, have impact on the power performance of electrical equipment.
For this problem, world's soil is typically the method with monitoring voltage at present：That is, charging when work as battery pack in a certain piece of battery
Monomer voltage reaches the upper limit, and control unit thinks that the electricity of battery pack has been filled with, and just stops charging, the purpose is to prevent from overcharging.Its
The usual way of equalizaing charge is to use dissipative type equalization charging method, i.e., is bled off with low current high on the high battery monomer of voltage
The electricity gone out is allowed to voltage and other battery monomers are basically identical, then recharges, so repeatedly, until being full of.This consumption
Type balanced charging method is dissipated, first, part energy is additionally consumed, second, increasing the charging interval.And when discharging, work as battery
When a certain piece of battery monomer voltage is put into lower limit in group, control unit thinks that the electricity of battery pack has been used up, and is just stopped, its
Purpose is to prevent from putting.Now, other battery monomers still have many electricity but to put again, so cause the wave of energy
Take, reduce distance travelled.Preferably the protection board supporting with power battery pack can not be full of with the mode of dissipation, can not be used
Put high low mode to be full of, but higher limit be charged to simultaneously for the balanced mode of the low battery monomer supplement of voltage,
The energy can so be saved；Also it is for voltage low battery monomer supplement voltage during electric discharge, makes itself and higher battery
Monomer voltage is evened up substantially, to reach balanced discharge until while being put into lower limit；With filled when ensureing and charging it is full, fill it is fast,
Do not fill excessively again；Put during electric discharge uniform but banish electricity, and not over-discharge, moreover it is possible to prevent its performance degradation, and it can be made
Capacity is maximally utilized, and increases the course continuation mileage of electric vehicle or the power performance of other electrical equipments, is reduced battery and is filled
Discharge time, extend the service life of battery pack.
The content of the invention：
In order to overcome the shortcomings of the prior art, the present invention provides a kind of novel power battery group protection board, and it is micro-
It can accomplish under the control of processor：Equalizaing charge is carried out to battery pack during charging, i.e.,：Pass through serial connection charge major loop during charging
(being not drawn into figure) and equalizaing charge branch circuit function in parallel are by each battery monomer voltage while are charged to higher limit；During electric discharge
Balanced discharge is carried out to battery pack, i.e.,：By the major loop that discharges (being not drawn into figure) and equalizaing charge branch circuit during electric discharge, to inclined
Low battery monomer voltage adds to evens up substantially with other battery monomer voltages, then is put into lower limit simultaneously；So as to protect
Card is electrically charged fast, the expiring of filling filled during the charging of pond group, and does not overcharge, and the energy and charging interval are saved in the equalizaing charge of specific consumption type；
What is put during electric discharge is neat, and putting to use up, and only puts, moreover it is possible to prevents its performance degradation.
In order to realize preferable target, the object of the present invention is achieved like this：A kind of novel power battery group protection board,
Including：Auxiliary Power Units, microprocessor control unit, voltage polling unit, charging and discharging circuit controls unit, driving are single
Member, power battery pack unit, the positive pole of power battery pack unit are connected with the positive pole of charger output end, and its negative pole passes through charging
Discharge loop control unit is returned on the negative pole of charger；The Auxiliary Power Units pass through from power taking on power battery assembly module
Powered after crossing conversion voltage stabilizing to microprocessor control unit；The voltage polling unit is continual to power battery pack unit
Voltage carries out inspection, and the magnitude of voltage that inspection is obtained delivers to microprocessor control unit；The microprocessor control unit root
The voltage data provided according to voltage polling unit, reed time controll charging and discharging circuit controls unit, driver element；Its feature exists
In：The novel power battery group protection board also includes：Equalizaing charge, balanced discharge circuit unit, the unit can form with
Lower six kinds of circuits, and can realize equalizaing charge, the purpose of balanced discharge, i.e.,：Single multi-winding isolation transformer of semibridge system is certainly
Right balanced type equalizaing charge, balanced discharge circuit；Single multi-winding isolation transformer nature balanced type equalizaing charge of full-bridge type,
Weigh discharge circuit；Semibridge system N the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit；Full-bridge type N is only
The equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit；N independent isolating transformer of semibridge system is individually controlled
Type equalizaing charge processed, balanced discharge circuit；The independent control type equalizaing charge of N independent isolating transformer of full-bridge type, balanced discharge
Circuit.
Described semibridge system single the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit, the circuit
By metal-oxide-semiconductor M1, M2 and capacitor C1, C2, C3+ mono- multi-winding isolation transformer T1+ commutation diodes D1, D2 and capacitor C4
Collectively constitute, wherein：In the primary side side winding by metal-oxide-semiconductor M1, M2 and capacitor C1, C2, C3 and multi-winding isolation transformer T1
In the semibridge system DC-AC circuits of composition, M1, M2 and C1, C2 connect respectively first, are then connected in parallel again, M1 drain electrodes and C1
Upper end be connected on the positive pole of power battery pack unit, M2 source electrodes and C2 lower end are connected to the negative pole of power battery pack unit
On；The capacitor C3 is serially connected in the loop of multi-winding isolation transformer T1 primary sides side winding, and its secondary side is by N number of winding structure
Respectively be connected to the full-wave rectifying circuit being made up of D1, D2 and C4 into, each secondary side winding, each full-wave rectifying circuit it is defeated
Go out on the positive and negative electrode for holding the section being respectively connected in parallel in corresponding power battery pack unit or a Battery pack core monomer；
Metal-oxide-semiconductor M1, M2 grid and the control terminal of driver element connect.
Described full-bridge type single the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit, the circuit
By metal-oxide-semiconductor M1, M2, M3, M4 and capacitor C1+ mono- multi-winding isolation transformer T1+ commutation diodes D1, D2 and capacitor C2
Collectively constitute, wherein：In the primary side side winding by metal-oxide-semiconductor M1, M2, M3, M4 and capacitor C1 and multi-winding isolation transformer T1
In the full-bridge type DC-AC circuits of composition, M1, M2 and M3, M4 connect respectively first, are then connected in parallel again, M1 and M3 leakage
Pole one end is connected on the positive pole of power battery pack unit, and M2 and M4 source electrode one end are connected to the negative pole of power battery pack unit
On；The capacitor C1 is connected in the multi-winding isolation transformer T1 loop of primary side side winding, and its secondary side is by N number of winding
Form, each secondary side winding is respectively connected to the full-wave rectifying circuit being made up of D1, D2 and C2, each full-wave rectifying circuit
Output end is respectively connected in parallel on the positive and negative electrode of the section or a Battery pack core monomer in corresponding power battery pack unit
On；Metal-oxide-semiconductor M1, M2, M3, M4 grid and the control terminal of driver element connect.
Described semibridge system N the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit, the circuit by
Metal-oxide-semiconductor M1, M2 and C1, C2, C3, C4......CN+N multi-winding isolation transformer T1, T2.....TN+ rectifications two of capacitor
Pole pipe D1, D2 and capacitor C5 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2 and capacitor C1, C2, C3, C4 and Multiple coil every
In the semibridge system DC-AC circuits of primary side side winding composition from transformer T1, T2, M1, M2 and C1, C2 connect respectively first, so
It is connected in parallel again afterwards, M1 drain electrodes and C1 upper end are connected on the positive pole of power battery pack unit, M2 source electrodes and C2 lower end
It is connected on the negative pole of power battery pack unit；Described capacitor C3, C4 are connected on multi-winding isolation transformer T1, T2 respectively
In the loop of primary side side winding；Described multi-winding isolation transformer T1, T2 secondary side are made up of N number of winding, each secondary side
Winding is respectively connected to the full-wave rectifying circuit being made up of D1, D2 and C5, and the output end of each full-wave rectifying circuit is respectively simultaneously
On the section or the positive and negative electrode of a Battery pack core monomer being associated in corresponding power battery pack unit；Metal-oxide-semiconductor M1, M2's
The control terminal of grid and driver element connects.
Described full-bridge type N the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit, the circuit by
Metal-oxide-semiconductor M1, M2, M3, M4 and C1, C2......CN+N multi-winding isolation transformer T1, T2......TN+ rectifications two of capacitor
Pole pipe D1, D2 and capacitor C3 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2, M3, M4 and capacitor C1, C2 and Multiple coil every
In the full-bridge type DC-AC circuits of primary side side winding composition from transformer T1, T2, M1, M2 and M3, M4 connect respectively first, so
It is connected in parallel again afterwards, one end of M1 and M3 drain electrodes is connected on power battery pack unit positive pole, and one end of M2 and M4 source electrodes connects
It is connected on the negative pole of power battery pack unit, capacitor C1, C2 are serially connected in multi-winding isolation transformer T1, T2 primary side side respectively
Loop in：Described multi-winding isolation transformer T1, T2 secondary side are made up of N number of winding, and each secondary side winding is respectively
It is connected to the full-wave rectifying circuit being made up of D1, D2 and C3, it is right therewith that the output end of each full-wave rectifying circuit is respectively connected in parallel on
In the power battery pack unit answered one section or a Battery pack core monomer positive and negative electrode on；Metal-oxide-semiconductor M1, M2, M3, M4 grid
It is connected with the control terminal of driver element.
The independent control type equalizaing charge of described N independent isolating transformer of semibridge system, balanced discharge circuit；The circuit by
Metal-oxide-semiconductor M1, M2 and K1, K2, K3......KN+N independent isolatings of capacitor C1, C2, C3, C4, C5......CN+ switching tube become
Depressor T1, T2, T3......TN+ commutation diode D1, D2 and capacitor C6 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2 and
In the semibridge system DC-AC circuits of capacitor C1, C2 and independent isolating transformer T1, T2, T3 primary side side winding composition, first
M1, M2 and C1, C2 connect respectively, are then connected in parallel again, and M1 drain electrodes and C1 upper end are connected to power battery pack unit
On positive pole, M2 source electrodes and C2 lower end are connected on the negative pole of power battery pack unit；Described capacitor C3, C4, C5 and switch
Pipe K1, K2, K3 are connected in the loop of independent isolating transformer T1, T2, T3 primary side side respectively；The independent isolating transformer
T1, T2, T3 each secondary side winding are connected to the full-wave rectifying circuit being made up of D1, D2 and C6, and each full-wave rectification respectively
The output end of circuit be respectively connected in parallel in corresponding power battery pack unit one section or a Battery pack core monomer just,
On negative pole；Described metal-oxide-semiconductor M1, M2 grid and the control terminal of driver element connect；Described switching tube K1, K2, K3 are respectively by micro-
Processor control unit controls.
The independent control type equalizaing charge of described N independent isolating transformer of full-bridge type, balanced discharge circuit, the circuit by
M1, M2, M3, M4 and K1, K2, K3......KN+N independent isolating transformers of capacitor C1, C2, C3......CN+ switching tube
T1, T2, T3......TN+ commutation diode D1, D2 and capacitor C4 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2, M3, M4
In the full-bridge type DC-AC circuits formed with capacitor C1, C2, C3 and independent isolating transformer T1, T2, T3 primary side side winding,
M1, M2 and M3, M4 connect respectively first, are then connected in parallel again, and M1, M3, which drain, is connected to the positive pole of power battery pack unit
On, M2, M4 source electrode are connected to power battery pack unit (on negative pole；Described capacitor C1, C2, C3 and switching tube K1, K2, K3
It is connected on respectively in the loop of independent isolating transformer T1, T2, T3 primary side side；Described independent isolating transformer T1, T2, T3's
Each secondary side winding is connected to the full-wave rectifying circuit being made up of D1, D2 and C4, and the output of each full-wave rectifying circuit respectively
End is respectively connected in parallel on the positive and negative electrode of the section in corresponding power battery pack unit or a Battery pack core monomer；Institute
The control terminal of the grid and driver element of stating metal-oxide-semiconductor M1, M2, M3, M4 connects；Described switching tube K1, K2, K3 are respectively by microprocessor
Device control unit controls.
The multi-winding isolation transformer can exchange replacement with independent isolating transformer；Its winding can be wire wound or
Stacked or synusia formula；The turn ratio of its primary side side and secondary side can determine ratio or change ratio.
Described switching tube K1, K2, K3......KN, can be electronic switch or electromagnetic switch.
Described power battery pack can be lithium battery group or graphene battery group or graphene super capacitance cell group or
Lead-acid battery group, its voltage and current can be connected as needed and parallel connection.
The beneficial effects of the invention are as follows：Circuit is simple, and manufacturing cost is low, and electrokinetic cell combo is easy, and battery variety adapts to
Wide, automaticity is high, is adapted to large-scale industrial production.It can ensure that and be charged to every piece of battery in battery pack in charging
Higher limit, one piece of over-charging of battery of any of which or charge less will not be made again；Every piece of battery in battery pack can fully be put during electric discharge
To lower limit, but it will not cross one piece of battery of any of which and put；It can also prevent that the performance of any one piece of battery in battery pack is bad
Change.
Brief description of the drawings：
Fig. 1 is a kind of novel power battery group protection board block diagram of the present invention
Wherein：1st, Auxiliary Power Units；2nd, microprocessor control unit；3rd, voltage polling unit；4th, charging and discharging loop
Control unit；5th, driver element；6th, power battery pack unit；7th, equalizaing charge, balanced discharge circuit unit.
Fig. 2 is semibridge system of the present invention single the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit
Sketch；
Wherein：1st, battery anode is connect；2nd, battery electrode is connect；3rd, driver element output end is connect；4th, it is defeated to connect driver element
Go out end.
Fig. 3 is full-bridge type of the present invention single the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit
Sketch；
Wherein：1st, battery anode is connect；2nd, battery electrode is connect；3rd, driver element output end is connect；4th, it is defeated to connect driver element
Go out end；5th, driver element output end is connect；6th, driver element output end is connect.
Fig. 4 is N multi-winding isolation transformer nature balanced type equalizaing charge of semibridge system of the present invention, the letter of balanced discharge circuit
Figure；
Wherein：1st, battery anode is connect；2nd, battery electrode is connect；3rd, driver element output end is connect；4th, it is defeated to connect driver element
Go out end.
Fig. 5 is N multi-winding isolation transformer nature balanced type equalizaing charge of full-bridge type of the present invention, the letter of balanced discharge circuit
Figure；
Wherein：1st, battery anode is connect；2nd, battery electrode is connect；3rd, driver element output end is connect；4th, it is defeated to connect driver element
Go out end；5th, driver element output end is connect；6th, driver element output end is connect.
Fig. 6 is the independent control type equalizaing charge of N independent isolating transformer of semibridge system of the present invention, the letter of balanced discharge circuit
Figure；
Wherein：1st, battery anode is connect；2nd, battery electrode is connect；3rd, driver element output end is connect；4th, it is defeated to connect driver element
Go out end.
Fig. 7 is the independent control type equalizaing charge of N independent isolating transformer of full-bridge type of the present invention, the letter of balanced discharge circuit
Figure；
Wherein：1st, battery anode is connect；2nd, battery electrode is connect；3rd, driver element output end is connect；4th, it is defeated to connect driver element
Go out end；5th, driver element output end is connect；6th, driver element output end is connect.
Embodiment：
The present invention is described further in conjunction with embodiment and accompanying drawing, such as Fig. 1 -- shown in 7, a kind of novel power battery
Group protection board, including：Auxiliary Power Units 1, microprocessor control unit 2, voltage polling unit 3, charging and discharging circuit controls
Unit 4, driver element 5, power battery pack unit 6, the positive pole of power battery pack unit 6 connect with the positive pole of charger output end
Connect, its negative pole is returned on the negative pole of charger by charging and discharging circuit controls unit 4；The Auxiliary Power Units 1 are from power
Power taking on battery assembly module 6, powered after converting voltage stabilizing to microprocessor control unit 2；The voltage polling unit 3 not between
The disconnected voltage to power battery pack unit 6 carries out inspection, and the magnitude of voltage that inspection is obtained delivers to microprocessor control unit
2；The voltage data that the microprocessor control unit 2 provides according to voltage polling unit 3, the control of reed time controll charging and discharging loop
Unit 4 processed, driver element 5；The novel power battery group protection board also includes：Equalizaing charge, balanced discharge circuit unit 7,
The unit can form following six kinds of circuits, and can realize equalizaing charge, the purpose of balanced discharge, i.e.,：Semibridge system list is only more
The equalizaing charge of winding isolation transformer nature balanced type, balanced discharge circuit 7-1；Single multi-winding isolation transformer of full-bridge type is certainly
Right balanced type equalizaing charge, balanced discharge circuit 7-2；N multi-winding isolation transformer nature balanced type equalizaing charge of semibridge system,
Balanced discharge circuit 7-3；Full-bridge type N the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit 7-4；
The independent control type equalizaing charge of N independent isolating transformer of semibridge system, balanced discharge circuit 7-5；N independent isolating of full-bridge type becomes
The independent control type equalizaing charge of depressor, balanced discharge circuit 7-6.
Embodiment 1：As shown in Fig. 2 described single multi-winding isolation transformer nature balanced type equalizaing charge of semibridge system,
Weigh discharge circuit 7-1, and the circuit is by metal-oxide-semiconductor M1, M2 and mono- multi-winding isolation transformer T1+ rectification of capacitor C1, C2, C3+
Diode D1, D2 and capacitor C4 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2 and capacitor C1, C2, C3 and Multiple coil isolation
In the semibridge system DC-AC circuits of transformer T1 primary side side winding composition, M1, M2 and C1, C2 connect respectively first, then again simultaneously
It is linked togather, M1 drain electrodes and C1 upper end are connected on the positive pole of power battery pack unit 6, and M2 source electrodes and C2 lower end are connected to
On the negative pole of power battery pack unit 6；The capacitor C3 is serially connected in the loop of multi-winding isolation transformer T1 primary sides side winding
In, its secondary side is made up of N number of winding, and each secondary side winding is respectively connected to the full-wave rectification electricity being made up of D1, D2 and C4
Road, the output end of each full-wave rectifying circuit are respectively connected in parallel on the section or one in corresponding power battery pack unit 6
On the positive and negative electrode of Battery pack core monomer；Metal-oxide-semiconductor M1, M2 grid are connected with the control terminal of driver element 5.The circuit is nature
Balanced type equalizaing charge, balanced discharge circuit, are now described further by taking Fig. 2 as an example to its operation principle：Charge time-division two-way
Charged simultaneously to battery pack, be serial connection charge major loop (being not drawn into figure) all the way, the loop is positive and negative by the output end of charger
Pole is directly coupled on the positive and negative electrode of power battery pack；Another way is equalizaing charge branch circuit, and the branch circuit is by semibridge system DC-
AC input, which is connected in parallel on the positive and negative electrode of power battery pack, asks for voltage.When voltage polling unit 3 detects a certain section or one
When Battery pack core monomer voltage reaches setting voltage, microprocessor control unit 2 starts driver element 5 and closes serial connection charge master time
Road, now only it is left equalizaing charge branch circuit and works on, the purpose is to for specially supplementing the battery monomer being not yet full of
Electricity.Its principle is to control driver element 5 to make in equalizaing charge, balanced discharge circuit unit 8 by microprocessor control unit 2
Metal-oxide-semiconductor M1, M2 turn on generation alternating electromotive force in turn, the alternating electromotive force pass through multi-winding isolation transformer T1 primary side side
Sense on each winding of secondary side, then DC voltage, the voltage are exported by the full-wave rectifying circuit of D1, D2 and C4 composition
The battery monomer slightly lower to voltage is automatically replenished.Now, the high battery monomer of voltage connects because of the voltage of itself very much
The DC voltage of nearly rectification circuit output is charging voltage, so charging current very little, even without charging current, and at this moment pressure difference
Bigger battery monomer charging current is bigger, until all battery monomers are charged to setting value complete charge, this charging side
Formula is both automatic and carried out naturally, therefore makes nature balanced type charge.
During electric discharge, because semibridge system DC-AC input is connected in parallel on the positive and negative electrode of power battery pack, so equilibrium is put
Electric energy required for electricity still asks for voltage on the battery pack, and in discharge process, voltage polling unit is to each batteries core monomer
Inspection is carried out, when detecting a certain section or relatively low and higher with the other voltages battery monomer of a Battery pack core monomer voltage
Pressure difference when being more than setting value, microprocessor control unit 2 starts driver element 5, is still to make equalizaing charge, balanced discharge electricity
The conducting in turn of metal-oxide-semiconductor M1, M2 in road unit 8 produce alternating electromotive force, and the alternating electromotive force is by Multiple coil isolation transformation
Device T1 is sensed on each winding of secondary side, then exports DC voltage by the full-wave rectifying circuit of D1, D2 and C4 composition, should
Voltage carries out continual supplement to the battery monomer of low voltage.Now, the minimum battery monomer of electromotive force obtain compared with
Big euqalizing current, the slightly lower battery monomer of electromotive force obtain less euqalizing current, and electromotive force is average electric close to battery pack
The battery monomer of pressure cannot get equalizaing charge electric current.When the voltage of the low battery monomer of capacity is added close to current electricity
Balanced supplement stops during the average voltage of pond group.So in discharge process, both ensured often to save on low-capacity batteries core monomer
Voltage and the voltage on other higher battery monomers are basically identical, make battery pack be equalized discharging again, until being put into down
Limit value, this mode for the battery monomer of low capacity in battery pack supplement voltage with battery pack global voltage, will not
Because the battery monomer of indivedual low capacity influences other high-capacity battery core monomer regular pictures, this process be also both it is automatic again
It is naturally done, therefore this discharge mode discharges nature balanced type.
Embodiment 2：As shown in figure 3, described single multi-winding isolation transformer nature balanced type equalizaing charge of full-bridge type,
Weigh discharge circuit 7-2, and the circuit is by metal-oxide-semiconductor M1, M2, M3, M4 and mono- multi-winding isolation transformer T1+ rectification of capacitor C1+
Diode D1, D2 and capacitor C2 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2, M3, M4 and capacitor C1 and Multiple coil isolation
In the full-bridge type DC-AC circuits of transformer T1 primary side side winding composition, M1, M2 and M3, M4 connect respectively first, then again simultaneously
It is linked togather, M1 and M3 drain electrode one end are connected on the positive pole of power battery pack unit 6, and M2 and M4 source electrode one end are connected to
On the negative pole of power battery pack unit 6；The capacitor C1 is connected on returning for multi-winding isolation transformer T1 primary side side winding
Lu Zhong, its secondary side are made up of N number of winding, and each secondary side winding is respectively connected to the full-wave rectification being made up of D1, D2 and C2
Circuit, the output end of each full-wave rectifying circuit be respectively connected in parallel on a section in corresponding power battery pack unit 6 or
On the positive and negative electrode of one Battery pack core monomer；Metal-oxide-semiconductor M1, M2, M3, M4 grid are connected with the control terminal of driver element 5.This electricity
The charging on road, discharge mode are substantially the same manner as Example 1, also belong to nature balanced type, the difference is that this circuit is using complete
Bridge-type DC-AC circuits, it is power utilization rate height the advantages of this circuit.
Embodiment 3：As shown in figure 4, described N multi-winding isolation transformer nature balanced type equalizaing charge of semibridge system,
Weigh discharge circuit 7-3, and the circuit is by metal-oxide-semiconductor M1, M2 and C1, C2, C3, C4......CN+N Multiple coil isolation transformations of capacitor
Device T1, T2......TN+ commutation diode D1, D2 and capacitor C5 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2 and capacitor
In the semibridge system DC-AC circuits of C1, C2, C3, C4 and multi-winding isolation transformer T1, T2 primary side side winding composition, M1 first,
M2 and C1, C2 connect respectively, are then connected in parallel again, and M1 drain electrodes and C1 upper end are being connected to power battery pack unit 6 just
On extremely, M2 source electrodes and C2 lower end are connected on the negative pole of power battery pack unit 6；Described capacitor C3, C4 are connected on respectively
In the loop of multi-winding isolation transformer T1, T2 primary side side winding；Described multi-winding isolation transformer T1, T2 secondary side by
N number of winding is formed, and each secondary side winding is respectively connected to the full-wave rectifying circuit being made up of D1, D2 and C5, and each all-wave is whole
The output end of current circuit is respectively connected in parallel on a section or a Battery pack core monomer in corresponding power battery pack unit 6
On positive and negative electrode；Metal-oxide-semiconductor M1, M2 grid are connected with the control terminal of driver element 5.The charging, discharge mode and implementation of this circuit
Example 1 is essentially identical, also belongs to nature balanced type, although this circuit and semibridge system DC-AC circuits, the difference is that it is using N
Multi-winding isolation transformer, it can be matched with any high power battery pack of output voltage the advantages of this circuit.
Embodiment 4：As shown in figure 5, described N multi-winding isolation transformer nature balanced type equalizaing charge of full-bridge type,
Weigh discharge circuit 7-4, and the circuit is by metal-oxide-semiconductor M1, M2, M3, M4 and C1, C2......CN+N Multiple coil isolation transformations of capacitor
Device T1, T2......TN+ commutation diode D1, D2 and capacitor C3 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2, M3, M4 and
In the full-bridge type DC-AC circuits of capacitor C1, C2 and multi-winding isolation transformer T1, T2 primary side side winding composition, M1 first,
M2 and M3, M4 connect respectively, are then connected in parallel again, and one end of M1 and M3 drain electrodes is connected to the positive pole of power battery pack unit 6
On, one end of M2 and M4 source electrodes is connected on the negative pole of power battery pack unit 6, and capacitor C1, C2 are serially connected in Multiple coil respectively
In the loop of isolating transformer T1, T2 primary side side；Described multi-winding isolation transformer T1, T2 secondary side are by N number of winding structure
Respectively be connected to the full-wave rectifying circuit being made up of D1, D2 and C3 into, each secondary side winding, each full-wave rectifying circuit it is defeated
Go out on the positive and negative electrode for holding the section being respectively connected in parallel in corresponding power battery pack unit 6 or a Battery pack core monomer；
Metal-oxide-semiconductor M1, M2, M3, M4 grid are connected with the control terminal of driver element 5.The charging, discharge mode and embodiment 1 of this circuit
It is essentially identical, nature balanced type is also belonged to, the difference is that this circuit both uses full-bridge type DC-AC circuits, uses N Multiple coil again
Isolating transformer, not only power utilization rate is high for this mode, can be matched with any high power battery pack of output voltage.
Embodiment 5：As shown in fig. 6, the independent control type equalizaing charge of described N independent isolating transformer of semibridge system, equilibrium
Discharge circuit 7-5；The circuit by metal-oxide-semiconductor M1, M2 and capacitor C1, C2, C3, C4, C5......CN+ switching tube K1, K2,
K3......KN+N common group of independent isolating transformer T1, T2, T3......TN+ commutation diode D1, D2 and capacitor C6
Into, wherein：Formed in the primary side side winding by metal-oxide-semiconductor M1, M2 and capacitor C1, C2 and independent isolating transformer T1, T2, T3
In semibridge system DC-AC circuits, M1, M2 and C1, C2 connect respectively first, are then connected in parallel again, M1 drain electrodes and C1 upper end
It is connected on the positive pole of dynamic side's battery assembly module 6, M2 source electrodes and C2 lower end are connected on the negative pole of power battery pack unit 6；
Described capacitor C3, C4, C5 and switching tube K1, K2, K3 are connected on independent isolating transformer T1, T2, T3 primary side side respectively
In loop；Described independent isolating transformer T1, T2, T3 each secondary side winding be connected to respectively be made up of D1, D2 and C6 it is complete
Ripple rectification circuit, and the output end of each full-wave rectifying circuit is respectively connected in parallel in corresponding power battery pack unit 6
One section or a Battery pack core monomer positive and negative electrode on；Described metal-oxide-semiconductor M1, M2 grid connect with the control terminal of driver element 5
Connect；Described switching tube K1, K2, K3 are controlled by microprocessor control unit 2 respectively.The charge and discharge system of this circuit and embodiment 1
It is essentially identical, using semibridge system DC-AC circuits, the difference is that this circuit uses N independent isolating transformer, and to every solely
The primary side side winding of vertical isolating transformer is controlled, and its advantage is to can be limited per charging current all the way, is belonged to point
The independent control type in road.
Embodiment 6：As shown in fig. 7, the independent control type equalizaing charge of described N independent isolating transformer of full-bridge type, equilibrium
Discharge circuit 7-6, the circuit by M1, M2, M3, M4 and capacitor C1, C2, C3......CN+ switching tube K1, K2,
K3......KN+N common group of independent isolating transformer T1, T2, T3......TN+ commutation diode D1, D2 and capacitor C4
Into, wherein：In the primary side side by metal-oxide-semiconductor M1, M2, M3, M4 and capacitor C1, C2, C3 and independent isolating transformer T1, T2, T3
In the full-bridge type DC-AC circuits of winding composition, M1, M2 and M3, M4 connect respectively first, are then connected in parallel again, M1, M3 leakage
Pole is connected on the positive pole of power battery pack unit 6, and M2, M4 source electrode are connected on the negative pole of power battery pack unit 6；The electricity
Container C1, C2, C3 and switching tube K1, K2, K3 are connected in the loop of independent isolating transformer T1, T2, T3 primary side side respectively；
Described independent isolating transformer T1, T2, T3 each secondary side winding are connected to the full-wave rectification electricity being made up of D1, D2 and C4 respectively
Road, and the output end of each full-wave rectifying circuit be respectively connected in parallel on a section in corresponding power battery pack unit 6 or
On the positive and negative electrode of one Battery pack core monomer；Described metal-oxide-semiconductor M1, M2, M3, M4 grid are connected with the control terminal of driver element 5；
Described switching tube K1, K2, K3 are controlled by microprocessor control unit 2 respectively.The charging, discharge mode and embodiment 1 of this circuit
It is essentially identical, the difference is that this circuit both uses full-bridge type DC-AC circuits, N independent isolating transformer, this mode are used again
Not only power utilization rate is high, can also be matched with any high power battery pack of output voltage, and to every independent isolating transformation
The primary side side winding of device is controlled, and its advantage is to that can be limited per charging current all the way, belong to branch and individually control
Type.
The multi-winding isolation transformer can exchange replacement with independent isolating transformer；Its winding can be wire wound or
Stacked or synusia formula；The turn ratio of its primary side side and secondary side can determine ratio or change ratio.
Described switching tube K1, K2, K3......KN, can be electronic switch or electromagnetic switch.
Described power battery pack can be lithium battery group or graphene battery group or graphene super capacitance cell group or
Lead-acid battery group, its voltage and current can be connected as needed and parallel connection.
Description above accompanying drawing uses electrical schematic diagram, is not the electrical schematic of the present invention, uses electrical schematic diagram
Purpose be only to the present invention operation principle and Application Example be described further, be also not wishing to limit the scope of the present invention
Make in foregoing circuit sketch or embodiment, therefore, the present invention is not by above-described embodiment and the limitation and restriction of electrical schematic diagram.It is right
For those skilled in the art, using the operation principle of the present invention, can there are various changes, change and expand, it is all at this
Invention spirit and operation principle within made any modification, it is equivalent, replace, improve etc. technical measures obtain technical side
Case, it should be included in the scope of the protection.
Claims (10)
1. a kind of novel power battery group protection board, including：Auxiliary Power Units (1), microprocessor control unit (2), voltage
Routing inspection unit (3), charging and discharging circuit controls unit (4), driver element (5), power battery pack unit (6), power battery pack
The positive pole of unit (6) is connected with the positive pole of charger output end, and its negative pole is returned to by charging and discharging circuit controls unit (4) to be filled
On the negative pole of electrical equipment；The Auxiliary Power Units (1) are from power taking on power battery assembly module (6), to micro- after converting voltage stabilizing
Processor control unit (2) is powered；The continual voltage to power battery pack unit (6) of voltage polling unit (3) enters
Row inspection, and the magnitude of voltage that inspection is obtained delivers to microprocessor control unit (2)；Microprocessor control unit (2) root
The voltage data provided according to voltage polling unit (3), reed time controll charging and discharging circuit controls unit (4), driver element (5)；
It is characterized in that：The novel power battery group protection board also includes：Equalizaing charge, balanced discharge circuit unit (7), the unit
Following six kinds of circuits can be formed, and can realize equalizaing charge, the purpose of balanced discharge, i.e.,：Single Multiple coil of semibridge system every
From the equalizaing charge of transformer nature balanced type, balanced discharge circuit (7-1)；Single multi-winding isolation transformer of full-bridge type is naturally equal
The equalizaing charge of weighing apparatus type, balanced discharge circuit (7-2)；N multi-winding isolation transformer nature balanced type equalizaing charge of semibridge system,
Weigh discharge circuit (7-3)；Full-bridge type N the equalizaing charge of multi-winding isolation transformer nature balanced type, balanced discharge circuit (7-
4)；The independent control type equalizaing charge of N independent isolating transformer of semibridge system, balanced discharge circuit (7-5)；Full-bridge type N is only independent
The independent control type equalizaing charge of isolating transformer, balanced discharge circuit (7-6).
2. novel power battery group protection board according to claim 1, it is characterised in that：Described single Multiple coil of semibridge system
The equalizaing charge of isolating transformer nature balanced type, balanced discharge circuit (7-1), the circuit by metal-oxide-semiconductor M1, M2 and capacitor C1,
C2, C3+ mono- multi-winding isolation transformer T1+ commutation diodes D1, D2 and capacitor C4 are collectively constituted, wherein：By metal-oxide-semiconductor
In the semibridge system DC-AC circuits of M1, M2 and capacitor C1, C2, C3 and multi-winding isolation transformer T1 primary side side winding composition,
M1, M2 and C1, C2 connect respectively first, are then connected in parallel again, and M1 drain electrodes and C1 upper end are connected to power battery pack list
On the positive pole of first (6), M2 source electrodes and C2 lower end are connected on the negative pole of power battery pack unit (6)；The capacitor C3 strings
It is connected in the loop of multi-winding isolation transformer T1 primary sides side winding, its secondary side is made up of N number of winding, each secondary side winding
The full-wave rectifying circuit being made up of D1, D2 and C4 is respectively connected to, the output end of each full-wave rectifying circuit is respectively connected in parallel on
In corresponding power battery pack unit (6) one section or a Battery pack core monomer positive and negative electrode on；Metal-oxide-semiconductor M1, M2 grid
Pole is connected with the control terminal of driver element (5).
3. novel power battery group protection board according to claim 1, it is characterised in that：Described single Multiple coil of full-bridge type
The equalizaing charge of isolating transformer nature balanced type, balanced discharge circuit (7-2), the circuit is by metal-oxide-semiconductor M1, M2, M3, M4 and electric capacity
Device C1+ mono- multi-winding isolation transformer T1+ commutation diodes D1, D2 and capacitor C2 are collectively constituted, wherein：By metal-oxide-semiconductor
In the full-bridge type DC-AC circuits of M1, M2, M3, M4 and capacitor C1 and multi-winding isolation transformer T1 primary side side winding composition,
M1, M2 and M3, M4 connect respectively first, are then connected in parallel again, and M1 and M3 drain electrode one end are connected to power battery pack list
On the positive pole of first (6), M2 and M4 source electrode one end are connected on the negative pole of power battery pack unit (6)；The capacitor C1 strings
Be associated in the multi-winding isolation transformer T1 loop of primary side side winding, its secondary side is made up of N number of winding, each secondary side around
Group is respectively connected to the full-wave rectifying circuit being made up of D1, D2 and C2, and the output end of each full-wave rectifying circuit is respectively in parallel
In corresponding power battery pack unit (6) one section or a Battery pack core monomer positive and negative electrode on；Metal-oxide-semiconductor M1, M2,
M3, M4 grid are connected with the control terminal of driver element (5).
4. novel power battery group protection board according to claim 1, it is characterised in that：Described N Multiple coil of semibridge system
The equalizaing charge of isolating transformer nature balanced type, balanced discharge circuit (7-3), the circuit by metal-oxide-semiconductor M1, M2 and capacitor C1,
C2, C3, C4......CN+N multi-winding isolation transformers T1, T2......TN+ commutation diode D1, D2 and capacitor C5 are total to
With composition, wherein：In the primary side side by metal-oxide-semiconductor M1, M2 and capacitor C1, C2, C3, C4 and multi-winding isolation transformer T1, T2
In the semibridge system DC-AC circuits of winding composition, M1, M2 and C1, C2 connect respectively first, are then connected in parallel again, M1 drain electrodes
It is connected to C1 upper end on the positive pole of power battery pack unit (6), M2 source electrodes and C2 lower end are connected to power battery pack list
On the negative pole of first (6)；Described capacitor C3, C4 are connected on returning for multi-winding isolation transformer T1, T2 primary side side winding respectively
Lu Zhong；Described multi-winding isolation transformer T1, T2 secondary side are made up of N number of winding, and each secondary side winding is respectively connected to
The full-wave rectifying circuit being made up of D1, D2 and C5, the output end of each full-wave rectifying circuit are respectively connected in parallel on corresponding
In power battery pack unit (6) one section or a Battery pack core monomer positive and negative electrode on；Metal-oxide-semiconductor M1, M2 grid are single with driving
The control terminal connection of first (5).
5. novel power battery group protection board according to claim 1, it is characterised in that：Described N Multiple coil of full-bridge type
The equalizaing charge of isolating transformer nature balanced type, balanced discharge circuit (7-4), the circuit is by metal-oxide-semiconductor M1, M2, M3, M4 and electric capacity
Device C1, C2......CN+N multi-winding isolation transformers T1, T2......TN+ commutation diode D1, D2 and capacitor C3 are total to
With composition, wherein：In the primary side side by metal-oxide-semiconductor M1, M2, M3, M4 and capacitor C1, C2 and multi-winding isolation transformer T1, T2
In the full-bridge type DC-AC circuits of winding composition, M1, M2 and M3, M4 connect respectively first, are then connected in parallel again, M1 and M3
One end of drain electrode is connected on power battery pack unit (6) positive pole, and one end of M2 and M4 source electrodes is connected to power battery pack unit
(6) on negative pole, capacitor C1, C2 are serially connected in multi-winding isolation transformer T1, T2 loop of primary side side respectively；It is described more
Winding isolation transformer T1, T2 secondary side are made up of N number of winding, and each secondary side winding is respectively connected to by D1, D2 and C3
The full-wave rectifying circuit of composition, the output end of each full-wave rectifying circuit are respectively connected in parallel on corresponding power battery pack list
A section in first (6) or on the positive and negative electrode of a Battery pack core monomer；Metal-oxide-semiconductor M1, M2, M3, M4 grid and driver element (5)
Control terminal connection.
6. novel power battery group protection board according to claim 1, it is characterised in that：The semibridge system N only it is independent every
From the independent control type equalizaing charge of transformer, balanced discharge circuit (7-5)；The circuit by metal-oxide-semiconductor M1, M2 and capacitor C1, C2,
K1, K2, K3......KN+N independent isolating transformers T1, T2, T3......TN+ of C3, C4, C5......CN+ switching tube are whole
Stream diode D1, D2 and capacitor C6 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2 and capacitor C1, C2 and independent isolating change
In the semibridge system DC-AC circuits of depressor T1, T2, T3 primary side side winding composition, M1, M2 and C1, C2 connect respectively first, then
It is connected in parallel again, M1 drain electrodes and C1 upper end are connected on the positive pole of power battery pack unit (6), M2 source electrodes and C2 lower end
It is connected on the negative pole of power battery pack unit (6)；Described capacitor C3, C4, C5 and switching tube K1, K2, K3 are connected on respectively
In the loop of independent isolating transformer T1, T2, T3 primary side side；Described independent isolating transformer T1, T2, T3 each secondary side
Winding is connected to the full-wave rectifying circuit being made up of D1, D2 and C6 respectively, and the output end of each full-wave rectifying circuit is respectively simultaneously
On the section or the positive and negative electrode of a Battery pack core monomer being associated in corresponding power battery pack unit (6)；The metal-oxide-semiconductor
M1, M2 grid are connected with the control terminal of driver element (5)；Described switching tube K1, K2, K3 are respectively by microprocessor control unit
(2) control.
7. novel power battery group protection board according to claim 1, it is characterised in that：The full-bridge type N only it is independent every
From the independent control type equalizaing charge of transformer, balanced discharge circuit (7-6), the circuit by M1, M2, M3, M4 and capacitor C1,
K1, K2, K3......KN+N independent isolating transformer T1, T2, T3......TN+ rectifications two of C2, C3......CN+ switching tube
Pole pipe D1, D2 and capacitor C4 are collectively constituted, wherein：By metal-oxide-semiconductor M1, M2, M3, M4 and capacitor C1, C2, C3 and it is independent every
In the full-bridge type DC-AC circuits of primary side side winding composition from transformer T1, T2, T3, M1, M2 and M3, M4 connect respectively first,
Then it is connected in parallel again, M1, M3 drain electrode are connected on the positive pole of power battery pack unit (6), and M2, M4 source electrode are connected to power
On the negative pole of battery assembly module (6)；Described capacitor C1, C2, C3 and switching tube K1, K2, K3 are connected on independent isolating change respectively
In the loop of depressor T1, T2, T3 primary side side；Described independent isolating transformer T1, T2, T3 each secondary side winding connect respectively
By the full-wave rectifying circuit being made up of D1, D2 and C4, and the output end of each full-wave rectifying circuit be respectively connected in parallel on it is right therewith
In the power battery pack unit (6) answered one section or a Battery pack core monomer positive and negative electrode on；Described metal-oxide-semiconductor M1, M2, M3, M4
Grid be connected with the control terminal of driver element (5)；Described switching tube K1, K2, K3 are controlled by microprocessor control unit (2) respectively
System.
8. the novel power battery group protection board according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, its feature
It is：The multi-winding isolation transformer can exchange replacement with independent isolating transformer；Its winding can be wire wound or fold
Chip or synusia formula；The turn ratio of its primary side side and secondary side can determine ratio or change ratio.
9. the novel power battery group protection board according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, its feature
It is：Described switching tube K1, K2, K3......KN, can be electronic switch or electromagnetic switch.
10. the novel power battery group protection board according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, its feature
It is：Described power battery pack can be lithium battery group or graphene battery group or graphene super capacitance cell group or plumbic acid
Battery pack, its voltage and current can be connected as needed and parallel connection.
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