CN206742911U - One kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel - Google Patents
One kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel Download PDFInfo
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- CN206742911U CN206742911U CN201720549619.7U CN201720549619U CN206742911U CN 206742911 U CN206742911 U CN 206742911U CN 201720549619 U CN201720549619 U CN 201720549619U CN 206742911 U CN206742911 U CN 206742911U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model is provided one kind and is made up of based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, the device multiple single battery group control modules being arranged in parallel and main control module U3；Each single battery group control module includes control module U1, metal-oxide-semiconductor and current sampling resistor, the positive pole of battery pack and the positive pole of outside cabinet connect, metal-oxide-semiconductor is connected on the negative pole of single battery group, current sampling resistor one end is connected on the source electrode of metal-oxide-semiconductor, other end is connected on the negative pole of rack, single battery group control module receives main control module U3 instructions by 485 buses, and main control module U3 carries out Control on Communication by 485 buses and single battery group control module.Based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, discharge and recharge that can be to battery pack effectively accurately judge, and battery charging and discharging is precisely controlled, and not only strengthens battery, and can improve the efficiency of battery charging and discharging.
Description
Technical field
It the utility model is related to battery charging and discharging technical field, and in particular to one kind is adaptive based on metal-oxide-semiconductor battery parallel connection
Answer charge and discharge device and method.
Background technology
In actual applications, its usual service life does not reach projected life much to battery, is typically designed the life-span in 10-
The battery of 15 years, its actual life are typically shorter in 3-5, some even life-spans.The actual life of battery
Do not reach projected life so that the reliability decrease of power system, while can also cause great economic loss.Battery makes
Influenceed with the life-span by many factors, including battery use environment, monitoring management mode, charge and discharge control mode in itself
With physical characteristic etc., by carrying out statistical analysis discovery to the battery of premature failure, most of premature failure is all by charge and discharge
Caused by electric control is unreasonable.So discharge and recharge is carried out to battery using rational charging method, it is possible to increase battery
Service life.
The history of more than 100 years although battery comes out so far, due to the limitation of technical conditions, chargings many at present
Device still uses traditional charging modes, in charging process, phenomena such as overcharge and gassing mostly be present so that battery
The lost of life, certain economic loss is caused to user.
Traditional accumulator structure is simple, and charge control is realized by analog control mode, thus charging method is single, can not
Charging method, and the not monitoring to battery charging process and defencive function are adjusted according to the state-of-charge of battery,
The accumulator cell charging and discharging in no worker monitor occasion can not be met.With the development of digital technology, the cost performance of microcontroller is continuous
Improve, the charge and discharge control of battery changes from simulation control to Digital Control, numerically controlled accumulator charging/discharging system
Various complicated charge and discharge controls can be realized, the charge and discharge process of battery can be monitored and be shown, improve system
Flexibility, the volume of reduction system, extend the service life of battery.
With battery widely using in new energy development, charging/discharging thereof and charge and discharge device to battery propose
Carry out new requirement, developing a kind of fast, efficient, safe accumulator charging/discharging system turns into a urgent task.To storing
The improvement of battery charging and discharging can be from the aspect of two, first, the charging/discharging thereof of battery, second, the discharge and recharge of battery
Device.With the development of Power Electronic Technique, microelectric technique, computer technology and automatic control technology, battery fills
The research of discharge control method and charge and discharge device is more and more extensive, and the research and design in terms of the two generates electricity to photoelectricity volt, electricity
The development of the emerging green industry such as electrical automobile has very important significance.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of based on the adaptive charge and discharge in parallel of metal-oxide-semiconductor battery
Electric installation, discharge and recharge that can be to battery pack effectively accurately judge, and battery charging and discharging is precisely controlled, no
Only strengthen battery, and the efficiency of battery charging and discharging can be improved.
To realize such scheme, the utility model provides a kind of based on metal-oxide-semiconductor battery adaptive charge and discharge Denso in parallel
Put, including：Rack, battery pack, multiple single battery group control modules being arranged in parallel and main control module U3；Each single battery
Group control module includes control module U1, metal-oxide-semiconductor and current sampling resistor, and the positive pole of single battery group and the positive pole of rack connect
Connect, metal-oxide-semiconductor is connected on the negative pole of single battery group, and current sampling resistor one end is connected on the source electrode of metal-oxide-semiconductor, and other end is connected on
The negative pole of rack, control module U1 positive pole are connected on the connection line of battery anode and rack positive pole, control module U1
Negative pole be connected on the connection line of current sampling resistor negative pole end and rack negative pole, the drain electrode of metal-oxide-semiconductor is connected to control mould
Block U1 SV+ ends, the source electrode of metal-oxide-semiconductor are connected to control module U1 SV- ends, and the grid of metal-oxide-semiconductor is connected to control module U1's
MOS interface ends, the first end of current sampling resistor are connected with control module U1 SI+ ends, the second end of current sampling resistor with
Control module U1 SI- ends connection, main control module U3 are arranged in parallel with single battery group control module, single battery group control mould
Block receives main control module U3 instructions by 485 buses, and main control module U3 is carried out by 485 buses and single battery group control module
Control on Communication.
Preferably, the control module U1 includes data acquisition module, metal-oxide-semiconductor drive module, MCU control module and communication
Module；The data acquisition module includes a computation chip U11, two voltage sampling circuits and a current sampling circuit,
First voltage sample circuit is difference sample circuit, including resistance R1, R2, R3 and electric capacity C1, C2, the resistance R2 are connected on electricity
The positive pole of pond group, resistance R3 are connected with resistance R2, and electric capacity C2 is in parallel with resistance R3, and electric capacity C2 is connected with one end after resistance R3 parallel connections
To the P poles of voltage acquisition line, other end ground connection, one end is connected to the N poles of voltage acquisition line after electric capacity C1 is in parallel with resistance R1, separately
Outer one end ground connection；The current sampling circuit is current-differencing sample circuit, including resistance R4, R5, R6, R7, R8, R9 and electric capacity
C3, C4, one end of the resistance R4 are connected with metal-oxide-semiconductor source electrode, and other end is connected with electric capacity C3, resistance R5 and metal-oxide-semiconductor source electrode
Connection, one end is connected to ground, and one end of the electric capacity C3 is connected with resistance R4, and one end is connected to ground, the one end being connected with R4 and
The P poles connection of current acquisition line；Resistance R6 is in parallel with resistance R7, R5, R8, and one end of the resistance R6 is connected with metal-oxide-semiconductor source electrode,
Other end is connected with R9, and the other end of the resistance R9 is connected with electric capacity C4, and resistance R8 one end is connected with resistance R6, separately
Outer one end is connected with electric capacity C4, and one end of the electric capacity C4 is connected with resistance R8, other end and R9 and current acquisition line N poles
Connection, resistance R7 one end are connected with R5, and other end is connected with R8；Second voltage sample circuit is by resistance R10, R12, R11
Formed with electric capacity C5, C6, gather metal-oxide-semiconductor drain source voltage, one end and metal-oxide-semiconductor after wherein resistance R10 is in parallel with electric capacity C6
Source electrode connects, and other end be connected with voltage acquisition line S, resistance R11 one end and metal-oxide-semiconductor drain electrode connection, other end and simultaneously
Connection set resistance R12 connect with electric capacity C5, wherein R12 is connected with one end after C5 parallel connections with metal-oxide-semiconductor source electrode, other end and
R11 and the D connections of voltage acquisition line；1 pin of the computation chip U11 is connected with the P poles of current acquisition line, the computation chip
U11 2 pin are connected with the N poles of current acquisition line, and 5 pin of the computation chip U11 are connected with the N poles of voltage acquisition line, described
Computation chip U11 6 pin are connected with the P poles of voltage acquisition line, the 7 pin ground connection of the computation chip U11, the computation chip
U11 12 pin connect power supply, and 3 pin of the computation chip U11 are connected with voltage acquisition line D, 4 pin of the computation chip U11 with
The S connections of voltage acquisition line；The MCU control module includes programmable microcontroller U12, the programmable microcontroller U12's
1st, 11,10,8,9 pin of 2,3,4 pin respectively with computation chip U11 are connected, the 10 pin connection electricity of the programmable microcontroller U12
Source, U12 5 pin are connected to ground；The communication module includes 485 circuit chip U13,1,4 pin of the 485 circuit chip U13
11,13 pin with programmable microcontroller U12 are connected respectively, with may be programmed after 2, the 3 pin parallel connections of the 485 circuit chip U13
Microcontroller U12 12 pin connection, 8 pin of the 485 circuit chip U13 connect power supply, 5 pin ground connection；485 circuit chip
U13 6,7 pin connect to be connected with the P poles of 485 buses and N poles respectively；The metal-oxide-semiconductor drive module includes a metal-oxide-semiconductor and drives core
The grid of piece U14, the metal-oxide-semiconductor driving chip U14 2 pin and metal-oxide-semiconductor connects, 1 pin of the metal-oxide-semiconductor driving chip U14 with
Programmable microcontroller U12 14 pin connection.
Preferably, the resistance R11 can be multiple resistant series or single resistance composition, and electric capacity C5 and C6 are essence
Close resistance capacitance.
Preferably, the metal-oxide-semiconductor is high-power N-channel MOS pipe, can be in parallel by one or more same type metal-oxide-semiconductor
Composition.
Preferably, battery pack carries out discharge and recharge using metal-oxide-semiconductor DS passages.
The utility model is compared to the beneficial effect of prior art：
1) based in metal-oxide-semiconductor battery charge and discharge device in parallel adaptive multiple electric power storages in parallel can be adapted to automatically simultaneously
The management of charging and discharging of pond group, and each single battery group control module independently carries out data to connected battery pack and adopted
Collection, charge and discharge control, and radiating treatment is carried out according to internal metal-oxide-semiconductor temperature, metal-oxide-semiconductor is automatically opened up during electric discharge, reduces metal-oxide-semiconductor
Loss power.
2) can be by multiple single battery group control modules and one based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel
Individual main control module composition, single battery group control module are independently responsible for a battery pack, gather the battery pack data, including battery
Group charging/discharging voltage, charging and discharging currents, metal-oxide-semiconductor drain-source both end voltage.In discharge and recharge, fan is started according to temperature and carried out
Radiating；In electric discharge, metal-oxide-semiconductor is automatically turned on, reduces metal-oxide-semiconductor power consumption, improves battery availability factor.Main control module can gather institute
There are the data that battery pack control module collects, and discharge and recharge carried out according to the data collected, control battery pack control module,
And each battery pack current state is shown, realize that the discharge and recharge of multiple batteries in parallel connection groups is adaptive.
3) master control module controls battery pack control module is passed through based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel
The data collected, efficiently and accurately obtain voltage, electric current, charge capacity, discharge electricity amount and each battery pack control of battery pack
The temperature of molding block metal-oxide-semiconductor, can be according to the voltage, electric current and charge capacity of battery pack, to battery pack when electric discharge
Effective control of discharge is carried out, protects battery, extends the life-span of battery；When charging, according to charging current, voltage, fill
Power consumption, battery charging is carried out effectively accurately to judge, while battery charging is precisely controlled, protected battery, improve
Charge efficiency.
4) by using based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, normal service life can be caused
Batteries for 5 years are promoted to 8-10, can greatly improve the service life of batteries.
Brief description of the drawings
Fig. 1 is the circuit connection diagram of modules in the utility model.
Fig. 2 is the circuit connection diagram of single battery group control module in the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.The every other embodiment that ordinary people in the field is obtained under the premise of creative work is not made, is belonged to
The scope of protection of the utility model.
Embodiment：One kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel.
Shown in reference picture 1, one kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, including：Rack, battery pack,
Multiple single battery group control modules being arranged in parallel and main control module U3；Each single battery group control module includes control
Module U1, metal-oxide-semiconductor and current sampling resistor, the positive pole of single battery group and the positive pole of rack connect, and metal-oxide-semiconductor is connected on single electricity
The negative pole of pond group, current sampling resistor one end are connected on the source electrode of metal-oxide-semiconductor, and other end is connected on the negative pole of rack, control module
U1 positive pole is connected to battery anode and on the connection line of rack positive pole, control module U1 negative pole is connected to current sample
On the connection line of resistance negative pole end and rack negative pole, the drain electrode of metal-oxide-semiconductor is connected to control module U1 SV+ ends, the source of metal-oxide-semiconductor
Pole is connected to control module U1 SV- ends, and the grid of metal-oxide-semiconductor is connected to control module U1 MOS interface ends, current sampling resistor
First end be connected with control module U1 SI+ ends, the second end of current sampling resistor is connected with control module U1 SI- ends,
Main control module U3 is arranged in parallel with single battery group control module, and single battery group control module receives master control by 485 buses
Module U3 is instructed, and main control module U3 carries out Control on Communication by 485 buses and single battery group control module.
It is based on metal-oxide-semiconductor battery adaptive charge and discharge device operation principle in parallel：In single battery group control module
After electricity operation, metal-oxide-semiconductor Q1 is first closed, receives main control module instruction, metal-oxide-semiconductor Q1 is operated according to main control module instruction.Together
When pass through single battery group control module and gather battery voltage, electric current, metal-oxide-semiconductor Q1 temperature and metal-oxide-semiconductor Q1 drain-sources both ends
The data such as voltage, battery pack working condition is judged by the data collected, when battery pack is just in discharge condition, if master control mould
Block does not control the battery pack control module to turn on metal-oxide-semiconductor Q1, then battery pack control module automatically controls metal-oxide-semiconductor Q1 conductings, to subtract
Few loss；Battery is in charged state, is controlled by master control borad, is operated by master control borad instruction, battery is charged.MOS
When pipe Q1 temperature exceedes the setting upper limit, start fan and carry out radiating treatment, when temperature is less than the setting upper limit, close radiator fan.
On main control module U3 after electricity operation, communicated by 485 buses with each single battery group control module, obtain battery pack mould
The data that block collects, each battery pack control module is controlled by data, is realized to battery charging and discharging management.
Shown in reference picture 2, the control module U1 includes data acquisition module, metal-oxide-semiconductor drive module, MCU control module
And communication module；The data acquisition module includes a computation chip U11, two voltage sampling circuits and a current sample
Circuit, first voltage sample circuit are difference sample circuit, including resistance R1, R2, R3 and electric capacity C1, C2, the resistance R2 strings
The positive pole of battery pack is associated in, resistance R3 connects with resistance R2, and electric capacity C2 is in parallel with resistance R3, and electric capacity C2 is in parallel with resistance R3 latter
End is connected to the P poles of voltage acquisition line, and other end ground connection, one end is connected to voltage acquisition line after electric capacity C1 is in parallel with resistance R1
N poles, other end ground connection；The current sampling circuit is current-differencing sample circuit, including resistance R4, R5, R6, R7, R8, R9
With electric capacity C3, C4, one end of the resistance R4 is connected with metal-oxide-semiconductor source electrode, and other end is connected with electric capacity C3, resistance R5 and MOS
Pipe source electrode is connected, and one end is connected to ground, and one end of the electric capacity C3 is connected with resistance R4, and one end is connected to ground, and is connected with R4
One end is connected with the P poles of current acquisition line；Resistance R6 is in parallel with resistance R7, R5, R8, one end and the metal-oxide-semiconductor source of the resistance R6
Pole is connected, and other end is connected with R9, and the other end of the resistance R9 is connected with electric capacity C4, resistance R8 one end and resistance R6
Connection, other end are connected with electric capacity C4, and one end of the electric capacity C4 is connected with resistance R8, other end and R9 and current acquisition
The N poles connection of line, resistance R7 one end are connected with R5, and other end is connected with R8；Second voltage sample circuit by resistance R10,
R12, R11 and electric capacity C5, C6 composition, gather metal-oxide-semiconductor drain source voltage, one end after wherein resistance R10 is in parallel with electric capacity C6
It is connected with metal-oxide-semiconductor source electrode, other end is connected with voltage acquisition line S, and resistance R11 one end connects with metal-oxide-semiconductor drain electrode, and in addition one
The resistance R12 for holding and being arranged in parallel and electric capacity C5 connections, wherein R12 are connected with one end after C5 parallel connections with metal-oxide-semiconductor source electrode, in addition
One end is connected with R11 and voltage acquisition line D；1 pin of the computation chip U11 is connected with the P poles of current acquisition line, the metering
Chip U11 2 pin are connected with the N poles of current acquisition line, and 5 pin of the computation chip U11 are connected with the N poles of voltage acquisition line,
6 pin of the computation chip U11 are connected with the P poles of voltage acquisition line, the 7 pin ground connection of the computation chip U11, the metering core
Piece U11 12 pin connect power supply, and 3 pin of the computation chip U11 are connected with voltage acquisition line D, 4 pin of the computation chip U11
It is connected with voltage acquisition line S；The MCU control module includes programmable microcontroller U12, the programmable microcontroller U12
11,10,8,9 pin of 1,2,3,4 pin respectively with computation chip U11 be connected, the 10 pin connection of the programmable microcontroller U12
Power supply, U12 5 pin are connected to ground；The communication module includes 485 circuit chip U13, and 1, the 4 of the 485 circuit chip U13
11,13 pin of the pin respectively with programmable microcontroller U12 are connected, with that can compile after 2, the 3 pin parallel connections of the 485 circuit chip U13
Journey microcontroller U12 12 pin connection, 8 pin of the 485 circuit chip U13 connect power supply, 5 pin ground connection；485 circuit chip
U13 6,7 pin connect to be connected with the P poles of 485 buses and N poles respectively；The metal-oxide-semiconductor drive module includes a metal-oxide-semiconductor and drives core
The grid of piece U14, the metal-oxide-semiconductor driving chip U14 2 pin and metal-oxide-semiconductor connects, 1 pin of the metal-oxide-semiconductor driving chip U14 with
Programmable microcontroller U12 14 pin connection.
In the present embodiment, the data acquisition module that is made up of computation chip U11, voltage sampling circuit and current sampling circuit
Voltage, the current data of battery pack are gathered, and the voltage collected and current value are delivered to the metering of integrated analog digit converter
Chip U11, charge/discharge electricity amount, charging and discharging currents, charging/discharging voltage, the charge-discharge electric power of battery are calculated by computation chip U11,
Charge/discharge electricity amount, charging and discharging currents, charging/discharging voltage, the charge-discharge electric power being calculated are inputted to control module, control module
In programmable microcontroller U12 read the charge/discharge electricity amount, charging and discharging currents, charging/discharging voltage, the charge-discharge electric power that collect,
And acquisition module temperature data, and accurately control metal-oxide-semiconductor driving chip U14 to carry out break-make control to metal-oxide-semiconductor.Programmable microcontroller
Device U12 by control data transmit to 485 circuit chip U13,485 circuit chip U13 by the communication interface in 485 buses with it is outer
Portion's EM equipment module interaction, the data transfer collected to external equipment module, and is controlled by external module.Pass through data acquisition
The data that module collects, control module can be obtained with efficiently and accurately the voltage of battery, electric current, charge capacity, discharge electricity amount and
Module temperature, battery can be carried out effective according to the voltage, electric current and charge capacity of battery when battery discharge
Control of discharge, battery over-discharge is prevented, protect battery, extend the life-span of battery；When battery charges, according to charging electricity
Stream, voltage and charge capacity, battery charge is carried out effectively accurately to judge, battery charging is precisely controlled, can be with
Prevent from overcharging, protect battery, improve charge efficiency.
Shown in reference picture 2, the drain-source of metal-oxide-semiconductor is provided at both ends with voltage differential sample circuit, and the voltage differential is adopted
Sample circuit includes resistance R10, R11, R12 and electric capacity C5 and C6, and the resistance R11 connects with metal-oxide-semiconductor drain electrode, resistance R12 with
Resistance R11 connects, and resistance R10 is in parallel with R12, and electric capacity C5 is in parallel with resistance R12, and electric capacity C6 is in parallel with resistance R10.This voltage difference
Sample circuit is divided to be used to sample metal-oxide-semiconductor drain-source both end voltage, in discharge and recharge, according to metal-oxide-semiconductor drain-source two
Terminal voltage size judges whether that starting fan is radiated；In electric discharge, metal-oxide-semiconductor is automatically turned on, reduces metal-oxide-semiconductor power consumption, is improved
Battery availability factor.
In the present embodiment, the resistance R11 can be that multiple resistant series or single resistance composition, electric capacity C5 and C6 are equal
For precision resistance electric capacity, while the metal-oxide-semiconductor is high-power N-channel MOS pipe, is composed in parallel by multiple same type metal-oxide-semiconductors.
In the present embodiment, in battery power discharge, metal-oxide-semiconductor is automatically opened up, turns on metal-oxide-semiconductor drain-source, reduces metal-oxide-semiconductor
Drain electrode and the voltage at source electrode both ends, drain-source loss power P=UI, when metal-oxide-semiconductor drain-source does not turn on, pass through metal-oxide-semiconductor
Internal diode discharge, U ≈ 0.7V, it is assumed that discharge current 100A, it is 70W to calculate loss power by formula；Conducting
When metal-oxide-semiconductor drain source voltage very little, using formula P=UI=I*I*R, R is that metal-oxide-semiconductor turns on internal resistance, the selected MOS of the present apparatus
Pipe conducting internal resistance is 800u Ω, same electric current, loss power 8W, by calculating, is discharged using metal-oxide-semiconductor, when metal-oxide-semiconductor turns on
When, loss power greatly reduces, and reduces discharge loss, improves battery availability factor, increases economic efficiency.
In the present embodiment, according to battery pack metal-oxide-semiconductor voltage parameter, whether control radiator fan starts, when battery pack is carried out
During discharge and recharge, due to small resistance be present when metal-oxide-semiconductor turns on, when charging and discharging currents are larger, electricity is converted into heat, causes
Metal-oxide-semiconductor temperature raises, if not only row radiating treatment, metal-oxide-semiconductor temperature can exceed its limiting temperature, cause metal-oxide-semiconductor to damage, it is impossible to
Battery pack is control effectively, when temperature exceedes setting higher limit, fan is opened and is radiated, effectively control metal-oxide-semiconductor temperature
Degree.
In the present embodiment, when being charged to battery pack, control module controls metal-oxide-semiconductor grid by hybrid PWM mode
Pole, metal-oxide-semiconductor is turned on according to pwm signal, and by gathering the effective voltage and current parameter of battery pack, adjust output
Pwm signal so that the charging voltage virtual value of output reaches setting value.
In the present embodiment, each resistance group control module is independent to carry out data acquisition, charge and discharge to connected resistance group
Electric control, and radiating treatment is carried out according to internal metal-oxide-semiconductor temperature, metal-oxide-semiconductor is automatically opened up during electric discharge, reduces the loss work(of metal-oxide-semiconductor
Rate.
In the present embodiment, battery pack carries out discharge and recharge using metal-oxide-semiconductor DS passages, during battery power discharge, when metal-oxide-semiconductor does not turn on
When, loss power is bigger, it is necessary to metal-oxide-semiconductor is opened, discharged using metal-oxide-semiconductor road DS passages；When battery pack charges, it is necessary to
Metal-oxide-semiconductor is opened, otherwise battery pack can not be charged.So in the present apparatus, battery set charge/discharge is led to using metal-oxide-semiconductor road DS
Road.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, made any modification, equivalent substitution and improvements etc., it is new to should be included in this practicality
Within the protection domain of type.
Claims (5)
1. one kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, including rack and battery pack, it is characterised in that：Also
Including multiple single battery group control modules being arranged in parallel and main control module U3；
Each single battery group control module includes control module U1, metal-oxide-semiconductor and current sampling resistor, and single battery group is just
The positive pole of pole and rack connects, and metal-oxide-semiconductor is connected on the negative pole of single battery group, and current sampling resistor one end is connected on metal-oxide-semiconductor
Source electrode, other end are connected on the negative pole of rack, and control module U1 positive pole is connected to the connection of battery anode and rack positive pole
On circuit, control module U1 negative pole is connected on the connection line of current sampling resistor negative pole end and rack negative pole, metal-oxide-semiconductor
Drain electrode is connected to control module U1 SV+ ends, and the source electrode of metal-oxide-semiconductor is connected to control module U1 SV- ends, and the grid of metal-oxide-semiconductor connects
Control module U1 MOS interface ends are connected to, the first end of current sampling resistor is connected with control module U1 SI+ ends, and electric current is adopted
Second end of sample resistance is connected with control module U1 SI- ends, and main control module U3 is arranged in parallel with single battery group control module,
Single battery group control module receives main control module U3 instructions by 485 buses, and main control module U3 passes through 485 buses and single electricity
Pond group control module carries out Control on Communication.
2. as claimed in claim 1 based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, it is characterised in that：The control
Molding block U1 includes data acquisition module, metal-oxide-semiconductor drive module, MCU control module and communication module；
The data acquisition module includes a computation chip U11, two voltage sampling circuits and a current sampling circuit, the
One voltage sampling circuit is difference sample circuit, including resistance R1, R2, R3 and electric capacity C1, C2, the resistance R2 are connected on battery
The positive pole of group, resistance R3 connect with resistance R2, and electric capacity C2 is in parallel with resistance R3, and one end is connected to after electric capacity C2 is in parallel with resistance R3
The P poles of voltage acquisition line, other end ground connection, one end is connected to the N poles of voltage acquisition line after electric capacity C1 is in parallel with resistance R1, in addition
One end is grounded；The current sampling circuit is current-differencing sample circuit, including resistance
R4, R5, R6, R7, R8, R9 and electric capacity C3, C4, one end of the resistance R4 are connected with metal-oxide-semiconductor source electrode, other end and electricity
Hold C3 connections, resistance R5 is connected with metal-oxide-semiconductor source electrode, and one end is connected to ground, and one end of the electric capacity C3 is connected with resistance R4, one end
It is connected to ground, the one end being connected with R4 is connected with the P poles of current acquisition line；Resistance R6 is in parallel with resistance R7, R5, R8, the electricity
Resistance R6 one end is connected with metal-oxide-semiconductor source electrode, and other end is connected with R9, and the other end of the resistance R9 is connected with electric capacity C4,
Resistance R8 one end is connected with resistance R6, and other end is connected with electric capacity C4, and one end of the electric capacity C4 is connected with resistance R8, separately
Outer one end is connected with the N poles of R9 and current acquisition line, and resistance R7 one end is connected with R5, and other end is connected with R8；Second electricity
Pressure sample circuit is made up of resistance R10, R12, R11 and electric capacity C5, C6, gathers metal-oxide-semiconductor drain source voltage, wherein resistance R10
Be connected with one end after electric capacity C6 parallel connections with metal-oxide-semiconductor source electrode, other end is connected with voltage acquisition line S, resistance R11 one end with
Metal-oxide-semiconductor drain electrode connection, other end are connected with the resistance R12 and electric capacity C5 being arranged in parallel, one end after wherein R12 is in parallel with C5
It is connected with metal-oxide-semiconductor source electrode, other end is connected with R11 and voltage acquisition line D；1 pin and current acquisition of the computation chip U11
The P poles connection of line, 2 pin of the computation chip U11 are connected with the N poles of current acquisition line, 5 pin of the computation chip U11 and
The N poles connection of voltage acquisition line, 6 pin of the computation chip U11 are connected with the P poles of voltage acquisition line, the computation chip U11
7 pin ground connection, 12 pin of the computation chip U11 connect power supply, and 3 pin of the computation chip U11 are connected with voltage acquisition line D,
4 pin of the computation chip U11 are connected with voltage acquisition line S；
1,2,3,4 pin that the MCU control module includes programmable microcontroller U12, the programmable microcontroller U12 are distinguished
11,10,8,9 pin with computation chip U11 are connected, 10 pin of programmable microcontroller U12 connection power supply, U12 5 pin with
Ground connects；
1,4 pin of the communication module including 485 circuit chip U13, the 485 circuit chip U13 respectively with programmable micro-control
Device U12 processed 11,13 pin connection, 12 pin after 2, the 3 pin parallel connections of the 485 circuit chip U13 with programmable microcontroller U12
Connection, 8 pin of the 485 circuit chip U13 connect power supply, 5 pin ground connection；6,7 pin of the 485 circuit chip U13 connect respectively with
The P poles of 485 buses connect with N poles；
The metal-oxide-semiconductor drive module includes a metal-oxide-semiconductor driving chip U14,2 pin and MOS of the metal-oxide-semiconductor driving chip U14
The grid connection of pipe, 1 pin of the metal-oxide-semiconductor driving chip U14 are connected with programmable microcontroller U12 14 pin.
3. as claimed in claim 2 based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, it is characterised in that：The electricity
Resistance R11 can be multiple resistant series or single resistance composition, and electric capacity C5 and C6 are precision resistance electric capacity.
4. as claimed in claim 1 based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, it is characterised in that：The MOS
Manage as high-power N-channel MOS pipe, composed in parallel by one or more same type metal-oxide-semiconductor.
5. as claimed in claim 1 based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel, it is characterised in that：Battery pack
Discharge and recharge is carried out using metal-oxide-semiconductor DS passages.
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| CN201720549619.7U CN206742911U (en) | 2017-05-17 | 2017-05-17 | One kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069886A (en) * | 2017-05-17 | 2017-08-18 | 广州市极越电子有限公司 | One kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel and method |
| CN108649632A (en) * | 2018-05-10 | 2018-10-12 | 欣旺达电子股份有限公司 | Battery system multimode group parallel circuit and implementation method |
-
2017
- 2017-05-17 CN CN201720549619.7U patent/CN206742911U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069886A (en) * | 2017-05-17 | 2017-08-18 | 广州市极越电子有限公司 | One kind is based on metal-oxide-semiconductor battery adaptive charge and discharge device in parallel and method |
| CN107069886B (en) * | 2017-05-17 | 2024-02-06 | 广州鑫虹兴电子有限公司 | Storage battery parallel self-adaptive charging and discharging device and method based on MOS (metal oxide semiconductor) tube |
| CN108649632A (en) * | 2018-05-10 | 2018-10-12 | 欣旺达电子股份有限公司 | Battery system multimode group parallel circuit and implementation method |
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