CN206060307U - A kind of accumulator cell charging and discharging bascule - Google Patents
A kind of accumulator cell charging and discharging bascule Download PDFInfo
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- CN206060307U CN206060307U CN201621088908.3U CN201621088908U CN206060307U CN 206060307 U CN206060307 U CN 206060307U CN 201621088908 U CN201621088908 U CN 201621088908U CN 206060307 U CN206060307 U CN 206060307U
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Abstract
This utility model is related to battery technology field, and in particular to a kind of accumulator cell charging and discharging bascule.A kind of accumulator cell charging and discharging bascule, which includes voltage detection module, discharge and recharge adjustment module and energy balance module, the battery unit less than charge-discharge power demand is determined after voltage detection module obtains the voltage of each battery unit, discharge and recharge adjustment module is coordinated to be controlled the voltage of the battery unit by energy balance module, so as to realize the equilibrating of whole battery set charge/discharge.Due to adopting above-mentioned technical proposal; this utility model effectively increases the charge-discharge performance of whole accumulator battery; protect battery unit; extend battery life; make each battery unit in set of cells can be at full charge when charging; set of cells global voltage and discharge current are improved during electric discharge, the power of electric tool is effectively improved.
Description
Technical field
This utility model is related to battery technology field, and in particular to a kind of accumulator cell charging and discharging bascule.
Background technology
Accumulator is commonly used on electrician's vehicles such as electromobile, electric automobile.Accumulator after permanent use is present
The unbalanced situation of discharge and recharge, which is mainly shown as：When the reduction of battery charging and discharging performance, i.e. cell discharge, voltage declined
Hurry up, during charging, voltage rises too fast；Battery charge storage ability is reduced, and battery unit its capacity now is not low, but is being charged
Shi Wufa is fully charged.
Discharge and recharge is unbalanced to cause battery life degradation, and which causes：During charging, the high battery unit of voltage can increase
Dehydration probability, the low battery unit meeting charge less electricity of voltage, i.e., cannot be full of；Overdischarge occurs when voltage is low during electric discharge, is formed
Battery positive plate softens.
Accordingly, the low battery unit of capacity when discharging every time depth of discharge than other normal batteries
Depth it is deep, so positive plate softens soon.The easy dehydration of the high battery unit of charging voltage, the low battery list of charging voltage
Unit can charge less electricity.If the reserve of electricity of single cell units is few, there is charge less, the problem that electric discharge is deep, the so battery unit
Problem that positive plate soften lotus and sulfuration is produced simultaneously will.
Learn with reference to general knowledge in sum, produce the unbalanced reason of battery as follows：
1st, it is bad to assembling for series battery, there is capacity difference and difference in open circuit voltage；
2nd, the difference of battery unit cracking pressure, dehydration are different, form the capacity difference of the battery unit day after tomorrow；
3rd, the self discharge of battery unit is different, gradually forms the difference of reserve of electricity.
4th, dehydration is different, forms the actual sulfuric acid concentration difference of battery unit, so as to form difference in open circuit voltage；
5th, battery life is poor, declines for single cell units capacity in late phase reaction, other battery lists are affected in set of cells
The normal charging and discharging state of unit.
The use of more electric tool product is at present to provide the electric bicycle of electric energy, electronic with accumulator battery on the market
The electric tools such as automobile, motor wagon and electri forklift, its popularity rate increase year by year, have infiltrated into people's daily life and work
The all trades and professions of work.These electric tools can occur the problem of power dropping when in use after long certain time, be by
Caused by above-mentioned battery unbalanced phenomena, which causes battery power discharge performance to reduce, and analyses in depth and understands, due to each in set of cells
Individual battery unit is affected to cause battery unit in discharge and recharge by factors such as manufacture material, technique and environment after being manufactured
In performance, there is some difference, and this species diversity more becomes obvious with use intensity, using the growth of duration, so that entirely
The efficiency for charge-discharge of set of cells is affected.During the presence of cell performance difference problem causes set of cells, performance is preferably electric
Pond cannot be full of when charging, cannot drain in electric discharge, and its reason is the battery voltage drop when in use of poor-performing
It is low very fast, so as to drag down the voltage of whole set of cells, now, the battery of better performances be then limited by the impact of global voltage and
The electric energy of storage cannot be released, so as to eventually affect the power of the electric tools such as electric motor car.Situation during charging be also as
This.Current social environment and international situation are to environmental protection requirement more and more higher, head of the new-energy automobile as clean energy resource
Product is selected, its spreading speed is increasingly accelerated.Therewith, the demand of rechargeable battery also becomes increasing.If can not be effective
Solving set of cells is affected by single battery unit and causes charge-discharge performance to decline this technical barrier, will certainly be produced substantial amounts of
Energy waste, set of cells scrappage will also rise.
Utility model content
The purpose of this utility model is, there is provided a kind of accumulator cell charging and discharging bascule, solves above technical problem.
The technical problem solved by this utility model can employ the following technical solutions to realize：
A kind of accumulator cell charging and discharging bascule, including apparatus main body, which is connected with accumulator battery, and accumulator battery is also connected with
One uses electric loading, it is characterised in that described device main body includes voltage detection module, discharge and recharge adjustment module and energy balance mould
Block, the voltage detection module include processor unit, memory cell and electric correspondingly with arbitrary battery unit
Pressure sampling unit, arbitrary battery unit are connected to the processor list by the corresponding voltage sampling unit
The magnitude of voltage that first backward processor unit feedback is easy to processor unit to receive and process, the memory cell connect the place
Reason device unit, accesses the magnitude of voltage of each battery unit for measuring, in the memory cell when being easy to processor unit to work
It is provided with the reference voltage level for being easy to be compared with the battery cell voltage value for measuring, any battery unit and arbitrary electricity
The voltage detecting that any battery unit is constituted after the corresponding voltage sampling unit of pool unit, processor unit connection is returned
Road, the voltage detection circuit turn on the magnitude of voltage that then processor unit gets correspondence battery unit；
The energy balance module connects the two poles of the earth of the accumulator battery, is easy to obtain the energy of accumulator battery, Ren Yisuo
State battery unit and the energy balance module connected by the discharge and recharge adjustment module, the discharge and recharge adjustment module include with
Battery unit in the accumulator battery adjusts switch element correspondingly, constitutes one and use after arbitrary regulation switch element closure
In the charging and discharging circuit to connected battery unit, control signal input and the place of the discharge and recharge adjustment module
The unit connection of reason device, is easy to processor unit to control the keying shape of the arbitrary regulation switch element in the discharge and recharge adjustment module
State, is easy to make the charging and discharging circuit of corresponding battery unit to open a way or closed circuit.
This utility model after arranging voltage detection module to obtain the magnitude of voltage of each battery unit with reference voltage level
Relatively, the battery unit of rechargeable standard is less than to determine magnitude of voltage, then by the control to discharge and recharge adjustment module so as to lead
Lead to arbitrary regulation switch element, so as to build the charging and discharging circuit of corresponding battery unit, by energy balance module from whole
The corresponding battery unit of minimum voltage value after energy is obtained in accumulator battery to determining via voltage detection module is charged
Electricity is supplemented afterwards, it is to avoid which affects charger to fill other battery units in whole set of cells as voltage reduces too fast
Electricity.During practical operation, can pass through to improve the voltage of battery unit corresponding to minimum voltage value, it is to avoid the battery unit is in electric discharge
Produce overdischarge phenomenon or irreversible permanent damages are caused to the battery unit reverse charging after voltage electricity is too low
Situation, it is also possible to effectively avoid being affected by the low-voltage battery unit and causing other battery units not fill in electricity when charging
Man Shi, the equipment of being electrically charged are judged as having been filled with, and cause whole set of cells to fill the situation of not enough electricity.
During utility model works, synchronization only regulation switch element closure in switch element is adjusted, so as to
Constitute the charging and discharging circuit of corresponding battery unit, or it is all off after do not form the loop of any battery unit.
The processor unit adopts single-chip microcomputer.
The memory cell adopts Flash.
The regulation switch element from relay, metal-oxide-semiconductor, IGBT pipes or controllable silicon and with drive the components and parts to close
Or the drive circuit composition for disconnecting.
Also include a detection switch module, which is used for closure or the disconnection for controlling the voltage detection circuit, the detection
Switch module includes and the one-to-one detection switch unit of battery unit that it is right with which that arbitrary detection switch unit is arranged at
In the voltage detection circuit of the battery unit answered, the control signal input of the detection switch module connects the processor list
Unit, controls the on off operating mode of each detection switch unit by processor unit, so as to the voltage for controlling any battery unit is examined
The on off operating mode on survey time road.
The detection switch unit from relay, metal-oxide-semiconductor, IGBT pipes or controllable silicon and with drive the components and parts to close
Or the drive circuit composition for disconnecting.
The detection switch unit drives optocoupler closure or the drive circuit for disconnecting to constitute with optocoupler.By arranging
Optocoupler, effectively prevents the signal between each voltage detection circuit from disturbing, it is to avoid therefore and affect the result of voltage sample.
The voltage sampling unit adopts the positive pole of divider resistance, arbitrary battery unit to pass through partial pressure electricity described in
Resistance is connected between the processor unit, and any battery unit and corresponding divider resistance and is provided with corresponding institute
State detection switch unit.
The energy balance module adopts a dc-dc, and which includes a switch input and a conversion
Device outfan, the converter output end coordinate discharge and recharge adjustment module to realize multi-channel output, the switch input
Two pins be connected to the two poles of the earth of the accumulator battery, so as to get the energy of whole set of cells, discharge and recharge adjustment module
In two pins of outfan of arbitrary regulation switch element be connected to the two poles of the earth of corresponding battery unit.
Beneficial effect：Due to adopting above-mentioned technical proposal, this utility model to effectively increase the charge and discharge of whole accumulator battery
Electrical property, protects battery unit, extends battery life, each battery unit in set of cells is filled when charging
Full Charge Capacity, improve set of cells global voltage and discharge current, effectively improve the power of electric tool during electric discharge, it is to avoid wastes,
Eliminate the follow-up discharge and recharge impact that remaining electricity is caused.
Description of the drawings
Fig. 1 is connection diagram of the present utility model；
Fig. 2 is functional block diagram of the present utility model；
Fig. 3 is the connection diagram of voltage sampling unit in this utility model.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that this utility model is realized are easy to understand, under
Face combines to be specifically illustrating and this utility model is expanded on further.
With reference to Fig. 1, Fig. 2, a kind of accumulator cell charging and discharging bascule, its apparatus main body include voltage detection module 1, charge and discharge
Electric adjustment module 2 and energy balance module 3.Energy balance module 3 and the two poles of the earth of accumulator battery 9 are connected in parallel on electric loading 4.Voltage
Detection module 1 includes processor unit 10, memory cell 12 and one-to-one with any battery unit in accumulator battery 9
Voltage sampling unit 11, after any battery unit is connected to processor unit 10 by corresponding voltage sampling unit 11
The magnitude of voltage for being easy to processor unit 10 to receive and process, the connection processor list of memory cell 12 are fed back to processor unit 10
Unit 10, when being easy to processor unit 10 to work, the magnitude of voltage of each battery unit that access is measured, is provided with memory cell 12
It is easy to the reference voltage level being compared with the battery cell voltage value for measuring.Any battery unit and any battery unit pair
The voltage sampling unit 11 answered, processor unit 10 constitute the voltage detection circuit of any battery unit after connecting, loop is led
General rule processor unit 10 gets the magnitude of voltage of correspondence battery unit.Any battery unit is connected by discharge and recharge adjustment module 2
Energy balance module 3 is connect, and discharge and recharge adjustment module 2 includes switch being adjusted correspondingly with the battery unit in accumulator battery 9
Unit, constitutes one for the charging and discharging circuit to connected battery unit, discharge and recharge after arbitrary regulation switch element closure
The control signal input of adjustment module 2 is connected with processor unit 10, is easy to the control discharge and recharge of processor unit 10 to adjust mould
The open/close states of the arbitrary regulation switch element in block 2, are easy to make the charging and discharging circuit of corresponding battery unit to open a way or close
Road.Switch element is adjusted from relay, metal-oxide-semiconductor, IGBT pipes or controllable silicon and with drive the components and parts to close or disconnect
Drive circuit composition.During utility model works, in switch element is adjusted, only a regulation switch element is closed synchronization
Close, to constitute the charging and discharging circuit of corresponding battery unit, or it is all off after do not form the loop of any battery unit.
Also include detection switch module 5, which is used for the closure of control voltage measure loop or disconnection, detection switch module 5
Including with the one-to-one detection switch unit of battery unit, arbitrary detection switch unit is arranged at corresponding battery unit
Voltage detection circuit in, the control signal input of detection switch module 5 connection processor unit 10, by processor unit
10 on off operating modes for controlling each detection switch unit, so as to control the break-make shape of the voltage detection circuit of any battery unit
State.Detection switch unit is using relay, metal-oxide-semiconductor, IGBT pipes or controllable silicon and coordinates driving components and parts closure or breaks
The drive circuit composition opened.During practical operation, voltage sample is affected to prevent the signal between each voltage detection circuit from disturbing
As a result, coordinate the drive circuit composition detection switch unit for driving optocoupler closure or disconnecting using optocoupler.Energy balance module 3
Using a dc-dc, which includes a switch input and a converter output end, and converter output end coordinates
Discharge and recharge adjustment module 2 realizes multi-channel output, and two pins of switch input are connected to the two poles of the earth of accumulator battery 9,
So as to get the energy of whole set of cells, two of the outfan of the arbitrary regulation switch element in discharge and recharge adjustment module 2
Pin is connected to the two poles of the earth of corresponding battery unit.
With reference to Fig. 3, voltage sampling unit adopts divider resistance, and accumulator battery is provided with the battery of 5 series connection as shown in FIG.
Unit E1～E5, and processor unit is connected to after battery unit E1～E5 is in parallel, it is illustrated that Vx ends are and are connected to processor list
The connection end of unit.Any battery unit forms measure loop after being connected with processor unit, for detecting the electricity of the battery unit
Pressure.For the measure loop for realizing being easy to processor unit to receive and process, any battery unit in E1～E5 is in positive pole string
Join a corresponding divider resistance R1～R5 and corresponding detection switch unit.A current limliting also in parallel in accumulator battery
Resistance Rx, prevents injury of the high current to processor unit.
This utility model after arranging voltage detection module to obtain the magnitude of voltage of each battery unit with reference voltage level
Relatively, the battery unit of charge-discharge power demand is less than to determine magnitude of voltage, then by the control to discharge and recharge adjustment module so as to
Arbitrary regulation switch element is turned on, so as to build the charging and discharging circuit of corresponding battery unit, by energy balance module from whole
The corresponding battery unit of minimum voltage value after energy is obtained in individual accumulator battery to determining via voltage detection module fills
Electricity is supplemented after electricity, it is to avoid which affects charger to other battery units in whole set of cells as voltage reduces too fast
Charge.By the voltage for improving battery unit corresponding to minimum voltage value, it is to avoid the battery unit was produced in electric discharge and put
Electrical phenomena causes the situation of irreversible permanent damages after voltage electricity is too low to the battery unit reverse charging, the former
Power output can be also affected, makes electric tool produce the phenomenon being short of power.Improve the corresponding battery unit of minimum voltage value
Affected by the low-voltage battery unit when method of voltage can also be prevented effectively from charging and caused other battery units in electricity
During amount underfill, the equipment of being electrically charged is judged as having been filled with, and causes whole set of cells to fill the situation of not enough electricity.
This utility model can take following way in operation：
One is arranged in memory cell for the high voltage limit setting value that magnitude of voltage is compared being surveyed with battery unit,
When outside charger is charged operation to whole accumulator battery, voltage sampling unit feeds back each to processor unit
The actual measurement magnitude of voltage of battery unit, after the comparison of processor unit select one of maximum voltage value, then by its with
High voltage limit setting value compares, according to comparative result, if the maximum voltage value of actual measurement is higher than high voltage limit setting value, while
The battery electricity unit of minimum voltage value is found out, control turns on the charge circuit that the corresponding battery unit of the minimum voltage value is located, profit
The battery unit is charged with energy balance module, its voltage is improved to balance the voltage of whole set of cells, while playing drop
The effect of low whole battery voltage；
One is arranged in memory cell for the lower bound voltage setting value that magnitude of voltage is compared being surveyed with battery unit,
When accumulator battery is discharged, voltage sampling unit obtains the magnitude of voltage of each battery unit and feeds back to processor unit, Jing
Minimum voltage value therein is judged by processor unit, which is compared with lower bound voltage setting value, it is minimum when the actual measurement
When magnitude of voltage is less than lower bound voltage setting value, the corresponding battery unit of actual measurement minimum voltage value is filled by accumulator battery
Electricity finally improves the output voltage and discharge current of whole rechargeable battery pack to supplement its electric energy while improving its voltage, from
And the power of electric tool can be effectively improved.
During above-mentioned practical operation, the selection of high voltage limit setting value and lower bound voltage setting value can follow following rule：It is high
Voltage limit setting value=battery unit average voltage level × 7%+ battery unit average voltage levels, lower bound voltage setting value=battery
Cell-average magnitude of voltage-battery unit average voltage level × 7%.Wherein, battery unit average voltage level is by measuring accumulator
It is averaging after the voltage measured value of all battery units in group and obtains.
The above has been shown and described ultimate principle of the present utility model, principal character and advantage of the present utility model.
It should be understood by those skilled in the art that, this utility model is not restricted to the described embodiments, in above-described embodiment and description
Description is to illustrate principle of the present utility model, and on the premise of without departing from this utility model spirit and scope, this practicality is new
Type also has various changes and modifications, and these changes and improvements are both fallen within the range of claimed this utility model.This practicality
New claimed scope is by appending claims and its equivalent thereof.
Claims (9)
1. a kind of accumulator cell charging and discharging bascule, including apparatus main body, which is connected with accumulator battery, and accumulator battery is also connected with one
With electric loading, it is characterised in that described device main body includes voltage detection module, discharge and recharge adjustment module and energy balance mould
Block, the voltage detection module include processor unit, memory cell and electric correspondingly with arbitrary battery unit
Pressure sampling unit, arbitrary battery unit are connected to the processor list by the corresponding voltage sampling unit
Unit, the memory cell connect the processor unit, and the battery unit be easy to and measure is provided with the memory cell
The reference voltage level that magnitude of voltage is compared, any battery unit and the corresponding voltage sampling unit of any battery unit,
The voltage detection circuit of any battery unit is constituted after processor unit connection；
The energy balance module connects the two poles of the earth of the accumulator battery, and arbitrary battery unit is adjusted by the discharge and recharge
Module connects the energy balance module, and the discharge and recharge adjustment module is included with the battery unit in the accumulator battery one by one
Corresponding regulation switch element, constitutes one for the charge and discharge to connected battery unit after arbitrary regulation switch element closure
Electrical circuit, the control signal input of the discharge and recharge adjustment module are connected with the processor unit.
2. a kind of accumulator cell charging and discharging bascule according to claim 1, it is characterised in that synchronization is opened in regulation
Close an only regulation switch element closure in unit.
3. a kind of accumulator cell charging and discharging bascule according to claim 2, it is characterised in that also be used to control including
The closure of the voltage detection circuit or the detection switch module of disconnection, the detection switch module are included with battery unit one by one
Corresponding detection switch unit, arbitrary detection switch unit are arranged at the voltage detection circuit of corresponding battery unit
In, the control signal input of the detection switch module connects the processor unit.
4. a kind of accumulator cell charging and discharging bascule according to claim 3, it is characterised in that the detection switch unit
From relay, metal-oxide-semiconductor, IGBT pipes or controllable silicon and with drive that the components and parts are closed or the drive circuit that disconnects is constituted.
5. a kind of accumulator cell charging and discharging bascule according to claim 4, it is characterised in that the voltage sampling unit
Using divider resistance, the positive pole of arbitrary battery unit is connected to the processor unit by divider resistance described in,
And between any battery unit and corresponding divider resistance, it is provided with the corresponding detection switch unit.
6. a kind of accumulator cell charging and discharging bascule according to claim 5, it is characterised in that the energy balance module
Using a dc-dc, which includes a switch input and a converter output end, the switch input
Two pins be connected to the two poles of the earth of the accumulator battery, the outfan of the arbitrary regulation switch element in discharge and recharge adjustment module
Two pins be connected to the two poles of the earth of corresponding battery unit.
7. a kind of accumulator cell charging and discharging bascule according to any one of claim 1 to 6, it is characterised in that the inspection
Slowdown monitoring switch unit drives optocoupler closure or the drive circuit for disconnecting to constitute with optocoupler.
8. a kind of accumulator cell charging and discharging bascule according to any one of claim 1 to 6, it is characterised in that the place
Reason device unit adopts single-chip microcomputer.
9. a kind of accumulator cell charging and discharging bascule according to any one of claim 1 to 6, it is characterised in that described to deposit
Storage unit adopts Flash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621088908.3U CN206060307U (en) | 2016-09-28 | 2016-09-28 | A kind of accumulator cell charging and discharging bascule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621088908.3U CN206060307U (en) | 2016-09-28 | 2016-09-28 | A kind of accumulator cell charging and discharging bascule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206060307U true CN206060307U (en) | 2017-03-29 |
Family
ID=58367791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621088908.3U Expired - Fee Related CN206060307U (en) | 2016-09-28 | 2016-09-28 | A kind of accumulator cell charging and discharging bascule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206060307U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI669876B (en) * | 2018-05-31 | 2019-08-21 | 國立臺北科技大學 | Power supply system and its operating method |
| CN111435153A (en) * | 2019-01-14 | 2020-07-21 | 河南森源重工有限公司 | Battery pack voltage adjusting device and voltage adjusting control method thereof |
| US10879709B2 (en) | 2018-05-31 | 2020-12-29 | National Taipei University Of Technology | Power management system and operating method thereof |
-
2016
- 2016-09-28 CN CN201621088908.3U patent/CN206060307U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI669876B (en) * | 2018-05-31 | 2019-08-21 | 國立臺北科技大學 | Power supply system and its operating method |
| US10879709B2 (en) | 2018-05-31 | 2020-12-29 | National Taipei University Of Technology | Power management system and operating method thereof |
| CN111435153A (en) * | 2019-01-14 | 2020-07-21 | 河南森源重工有限公司 | Battery pack voltage adjusting device and voltage adjusting control method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20170928 |