CN105048568B - It is a kind of to solve the problems, such as between multiple battery packs the mutually circuit and its method of discharge and recharge - Google Patents
It is a kind of to solve the problems, such as between multiple battery packs the mutually circuit and its method of discharge and recharge Download PDFInfo
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- CN105048568B CN105048568B CN201510481075.0A CN201510481075A CN105048568B CN 105048568 B CN105048568 B CN 105048568B CN 201510481075 A CN201510481075 A CN 201510481075A CN 105048568 B CN105048568 B CN 105048568B
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Abstract
Solve the problems, such as that mutually the circuit and its method of discharge and recharge, circuit include multiple battery modules in parallel between multiple battery packs the invention discloses a kind of；Described battery modules include battery, charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, temperature sampling circuit, temperature detect switch (TDS) module and control module；The voltage sample input of described control module is connected with battery, the current sample input of control module is connected with current detection module, first metal-oxide-semiconductor control output end of control module is connected with charging metal-oxide-semiconductor, and the second metal-oxide-semiconductor control output end of control module is connected with electric discharge metal-oxide-semiconductor.The present invention is by controlling charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor opening and closing to solve the problems, such as that the battery modules of multiple different type voltage grades are parallel with one another and can cause mutual discharge and recharge；And realize in all battery modules in a bus bar circuit in parallel, each battery modules realize the total recycle process of discharge and recharge.
Description
Technical field
Solve the problems, such as between multiple battery packs the mutually circuit and its method of discharge and recharge the present invention relates to a kind of.
Background technology
With flourishing for electronic technology, medium-sized, large-sized battery pack dosage is increasing.And in these battery packs
Production, test are with that during use, will use many charging and discharging processes.
Existing charging equipment or discharge equipment have the following disadvantages：
1st, battery pack needs to use the battery modules of same model to carry out battery pack requirement used in parallel, i.e., in parallel each
Cell voltage is identical, it is impossible to which complete different type, the battery modules of voltage class are carried out into input and output in parallel.Because in electricity
Chi Zuzhong, what the difference between monomer was constantly present, by taking capacity as an example, its otherness never tends to disappear, but progressively dislikes
Change.Same electric current is flowed through in battery pack, comparatively, the big person of capacity is always at shallow fill of low current and shallow put, tends to capacity and decline
Slow down slow, life, and the small person of capacity is always at high current super-charge super-discharge, tends to capacity attenuation quickening, the lost of life, two
Performance parameter difference is increasing between person, forms positive feedback characteristic, low capacity premature failure, organizes the lost of life.
2nd, the discharge and recharge step of battery pack is unable to reach the function of complete alternation so that the using trouble of battery pack.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of simple and easy, easy to operation, highly reliable
Solve the problems, such as between multiple battery packs the mutually circuit and its method of discharge and recharge, solving prior art can not realize that complete alternation is filled
The problem of electric discharge.
The purpose of the present invention is achieved through the following technical solutions：One kind solves mutual charge and discharge between multiple battery packs
The circuit of electric problem, including multiple battery modules in parallel, described battery modules use positive and negative both threads input and output；It is described
Battery modules include battery, charging MOS, electric discharge MOS, current detection module, temperature sampling circuit, temp control switch and control
Molding block, described charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, temp control switch and battery are in series, described
Temperature sampling circuit the temperature of battery modules is sampled；The voltage sample input of described control module connects with battery
Connect, the current sample input of control module is connected with current detection module, the temperature sampling input and temperature of control module
Sample circuit is connected, and the first metal-oxide-semiconductor control output end of control module is connected with charging metal-oxide-semiconductor, the second metal-oxide-semiconductor of control module
Control output end is connected with electric discharge metal-oxide-semiconductor, and the temperature detect switch (TDS) output end of control module is connected with temp control switch.
Described current detection module includes current sense resistor RSC.
Described battery modules are identical or different type voltage class battery modules.
Described battery is made up of multiple battery units being in series.
Described temperature sampling circuit is arranged in the battery core of battery.
A kind of solve the problems, such as between multiple battery packs the mutually method of the circuit of discharge and recharge, including battery pack charge step,
Battery power discharge step and protection step；
Described battery power discharge step includes following sub-step：
S11：Before discharge process, all charging metal-oxide-semiconductors are closed, and all electric discharge metal-oxide-semiconductors are in and opened
State is opened, all battery modules pass through the diodes in parallel of the course of discharge allowed inside the metal-oxide-semiconductor that charges；
S12：Start to discharge, voltage highest battery modules are discharged at first；Control module is to passing through current detecting mould
The electric current of block is sampled, and also the voltage of battery is sampled：
（1）When control module detects the discharge current by current detection module, control module puts charging metal-oxide-semiconductor
, will battery modules addition electric discharge sequence in parallel in opening；Until all charging metal-oxide-semiconductors are in opening,
Realize all battery modules in parallel electric discharges；
（2）When control module detects that the voltage of battery reaches overdischarge thresholding, electric discharge metal-oxide-semiconductor is placed in pass by control module
Closed state；Until all electric discharge metal-oxide-semiconductors are closed, represent that all battery modules are discharged completion；
Described battery pack charge step includes following sub-step：
S21：Before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors, which are in, to close
Closed state, all battery modules are all together in parallel by the diode in the charging direction allowed inside the metal-oxide-semiconductor that discharges；
S22：Start to charge up, charging current initially enters the minimum battery modules of voltage；Control module through overcurrent to examining
The electric current for surveying module is sampled, and also the voltage of battery is sampled：
（1）When control module detects the charging current by current detection module, control module puts electric discharge metal-oxide-semiconductor
, will battery modules addition charging sequence in parallel in opening；Until all electric discharge metal-oxide-semiconductors are in opening,
Realize all battery modules in parallel chargings；
（2）When control module detects that the voltage of battery reaches overcharge thresholding, charging metal-oxide-semiconductor is placed in pass by control module
Closed state；Until all charging metal-oxide-semiconductors are closed, represent that all battery modules bulk charges are completed.
Described protection step is：During battery pack charge step, battery power discharge step are carried out, described temperature
Degree sample circuit is sampled to the temperature of battery modules, and when temperature is too high, control module control temp control switch is cut off.
The beneficial effects of the invention are as follows：
（1）The present invention passes through on the basis of not overcharging and only putting and controls charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor method for opening and closing
Mutual discharge and recharge can be caused by solving the problems, such as that multiple battery modules are parallel with one another, even complete different type voltage grade
Battery modules parallel connection.
（2）The present invention realize all battery modules in a bus bar circuit in parallel, output it is only positive and negative
In the case of both threads, the total recycle process of charge and discharge can be achieved in each battery modules：After the completion of charge step
The open and-shut mode of charging metal-oxide-semiconductor and the metal-oxide-semiconductor that discharges is identical with the original state of discharge step, similarly after the completion of discharge step
The open and-shut mode of charging metal-oxide-semiconductor and the metal-oxide-semiconductor that discharges is identical with the original state of charge step.
（3）Present invention additionally comprises the temperature sampling circuit and temp control switch for protecting battery modules, in battery mould
The temperature of group disconnects the battery modules when higher, has security.
（4）The present invention is simple and easy, easy to operation, highly reliable.
Brief description of the drawings
Fig. 1 is block diagram of the present invention；
Fig. 2 is battery modules circuit diagram；
Fig. 3 is the inventive method flow chart；
Fig. 4 completes equivalent circuit diagram for electric discharge；
Fig. 5 is charging complete equivalent circuit diagram.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：As shown in figure 1, a kind of solve multiple batteries
The circuit of mutual discharge and recharge problem between group, including multiple battery modules in parallel, described battery modules use positive and negative two
Line input and output；As shown in Fig. 2 described battery modules include battery, charging MOS, electric discharge MOS, current detection module, temperature
Sample circuit, temp control switch and control module, described charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, temperature control
System switch and battery are in series, and described temperature sampling circuit samples to the temperature of battery modules；Described control mould
The voltage sample input of block is connected with battery, and the current sample input of control module is connected with current detection module, control
The temperature sampling input of module is connected with temperature sampling circuit, the first metal-oxide-semiconductor control output end and the charging MOS of control module
Pipe is connected, and the second metal-oxide-semiconductor control output end of control module is connected with electric discharge metal-oxide-semiconductor, the temperature detect switch (TDS) output end of control module
It is connected with temp control switch.
Described current detection module includes current sense resistor RSC.
Described battery modules are identical or different type voltage class battery modules.
Described battery is made up of multiple battery units being in series.
Described temperature sampling circuit is arranged in the battery core of battery.
As shown in figure 3, a kind of solve the problems, such as the mutually method of the circuit of discharge and recharge, including battery pack between multiple battery packs
Charge step, battery power discharge step and protection step；
Described battery power discharge step includes following sub-step：
S11：Before discharge process, all charging metal-oxide-semiconductors are closed, and all electric discharge metal-oxide-semiconductors are in and opened
State is opened, all battery modules pass through the diodes in parallel of the course of discharge allowed inside the metal-oxide-semiconductor that charges；
S12：Start to discharge, due to the relation of voltage competition, voltage highest battery modules are discharged at first；Control mould
Block also samples to being sampled by the electric current of current detection module to the voltage of battery：
（1）When control module detects the discharge current by current detection module, control module puts charging metal-oxide-semiconductor
In opening, will the battery modules add sequence in parallel of discharging, the metal-oxide-semiconductor that avoids charging bears discharge current；Until all
Charging metal-oxide-semiconductor be in opening, realize all battery modules in parallel electric discharges；
（2）When control module detects that the voltage of battery reaches overdischarge thresholding, electric discharge metal-oxide-semiconductor is placed in pass by control module
Closed state, electric discharge metal-oxide-semiconductor now play not overdischarge；Until all electric discharge metal-oxide-semiconductors are closed, institute is represented
Some battery modules are discharged completion, and equivalent circuit diagram is as shown in Figure 4.
After the completion of electric discharge, charging metal-oxide-semiconductor is in opening, and electric discharge metal-oxide-semiconductor is closed, charges and walk with battery
Charging metal-oxide-semiconductor required for rapid is identical with the original state for the metal-oxide-semiconductor that discharges.
Described battery pack charge step includes following sub-step：
S21：Before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors, which are in, to close
Closed state, all battery modules are all together in parallel by the diode in the charging direction allowed inside the metal-oxide-semiconductor that discharges；
S22：Start to charge up, due to the relation of voltage competition, charging current initially enters the minimum battery modules of voltage；Control
Molding block also samples to being sampled by the electric current of current detection module to the voltage of battery：
（1）When control module detects the charging current by current detection module, control module puts electric discharge metal-oxide-semiconductor
, will battery modules addition charging sequence in parallel in opening；Until all electric discharge metal-oxide-semiconductors are in opening,
Realize all battery modules in parallel chargings；
（2）When control module detects that the voltage of battery reaches overcharge thresholding, charging metal-oxide-semiconductor is placed in pass by control module
Closed state, charging metal-oxide-semiconductor now play not overcharge；Until all charging metal-oxide-semiconductors are closed, institute is represented
Some battery modules bulk charges are completed, and equivalent circuit diagram is as shown in Figure 5.
After charging complete, electric discharge metal-oxide-semiconductor is in opening, and charging metal-oxide-semiconductor is closed, walked with battery discharge
Charging metal-oxide-semiconductor required for rapid is identical with the original state for the metal-oxide-semiconductor that discharges.
Described protection step is：During battery pack charge step, battery power discharge step are carried out, described temperature
Degree sample circuit is sampled to the temperature of battery modules, and when temperature is too high, control module control temp control switch is cut off.
Claims (4)
1. a kind of solve the problems, such as between multiple battery packs the mutually method of discharge and recharge, it is characterised in that：Methods described is corresponding a kind of
Solves the problems, such as between multiple battery packs the mutually circuit of discharge and recharge, the circuit includes multiple battery modules in parallel, described
Battery modules use positive and negative both threads input and output；Described battery modules include battery, charging MOS, electric discharge MOS, electric current inspection
Survey module, temperature sampling circuit, temp control switch and control module, described charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detecting
Module, temp control switch and battery are in series, and described temperature sampling circuit is arranged in the battery core of battery, to battery mould
The temperature of group is sampled；The voltage sample input of described control module is connected with battery, the current sample of control module
Input is connected with current detection module, and the temperature sampling input of control module is connected with temperature sampling circuit, control module
The first metal-oxide-semiconductor control output end be connected with charging metal-oxide-semiconductor, the second metal-oxide-semiconductor control output end of control module and the metal-oxide-semiconductor that discharges
Connection, the temperature detect switch (TDS) output end of control module are connected with temp control switch；
Methods described, including battery pack charge step, battery power discharge step and protection step；
Described battery power discharge step includes following sub-step：
S11：Before discharge process, all charging metal-oxide-semiconductors are closed, and all electric discharge metal-oxide-semiconductors are in opening state
State, all battery modules pass through the diodes in parallel of the course of discharge allowed inside the metal-oxide-semiconductor that charges；
S12：Start to discharge, voltage highest battery modules are discharged at first；Control module is to by current detection module
Electric current is sampled, and also the voltage of battery is sampled：
（1）When control module detects the discharge current by current detection module, charging metal-oxide-semiconductor is placed in out by control module
State is opened, will battery modules addition electric discharge sequence in parallel；Until all charging metal-oxide-semiconductors are in opening, realize
All battery modules in parallel electric discharges；
（2）When control module detects that the voltage of battery reaches overdischarge thresholding, electric discharge metal-oxide-semiconductor is placed in closing shape by control module
State；Until all electric discharge metal-oxide-semiconductors are closed, represent that all battery modules are discharged completion；
Described battery pack charge step includes following sub-step：
S21：Before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors, which are in, closes shape
State, all battery modules are all together in parallel by the diode in the charging direction allowed inside the metal-oxide-semiconductor that discharges；
S22：Start to charge up, charging current initially enters the minimum battery modules of voltage；Control module is to passing through current detecting mould
The electric current of block is sampled, and also the voltage of battery is sampled：
（1）When control module detects the charging current by current detection module, electric discharge metal-oxide-semiconductor is placed in out by control module
State is opened, will battery modules addition charging sequence in parallel；Until all electric discharge metal-oxide-semiconductors are in opening, realize
All battery modules in parallel chargings；
（2）When control module detects that the voltage of battery reaches overcharge thresholding, charging metal-oxide-semiconductor is placed in closing shape by control module
State；Until all charging metal-oxide-semiconductors are closed, represent that all battery modules bulk charges are completed；
Described protection step is：During battery pack charge step, battery power discharge step are carried out, described temperature is adopted
Sample circuit is sampled to the temperature of battery modules, and when temperature is too high, control module control temp control switch is cut off.
A kind of solve the problems, such as that mutually the method for discharge and recharge, its feature exist between multiple battery packs 2. according to claim 1
In：Described current detection module includes current sense resistor RSC.
A kind of solve the problems, such as that mutually the method for discharge and recharge, its feature exist between multiple battery packs 3. according to claim 1
In：Described battery modules are identical or different type voltage class battery modules.
A kind of solve the problems, such as that mutually the method for discharge and recharge, its feature exist between multiple battery packs 4. according to claim 1
In：Described battery is made up of multiple battery units being in series.
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| CN201510481075.0A CN105048568B (en) | 2015-08-03 | 2015-08-03 | It is a kind of to solve the problems, such as between multiple battery packs the mutually circuit and its method of discharge and recharge |
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| CN201510481075.0A CN105048568B (en) | 2015-08-03 | 2015-08-03 | It is a kind of to solve the problems, such as between multiple battery packs the mutually circuit and its method of discharge and recharge |
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| CN109450008A (en) * | 2018-09-26 | 2019-03-08 | 同济大学 | A kind of circuit reducing the extension harm of batteries in parallel connection group thermal runaway |
| CN109193910A (en) * | 2018-10-19 | 2019-01-11 | 上海航天能源股份有限公司 | A kind of battery switching circuit and battery switching method |
| CN110752645A (en) * | 2019-11-25 | 2020-02-04 | 广东博力威科技股份有限公司 | Parallel charging and discharging management system for multiple batteries |
| CN112838648A (en) * | 2021-03-05 | 2021-05-25 | 杭州惟领科技有限公司 | Low-voltage household energy storage system dynamic parallel operation circuit and method |
| CN117913420B (en) * | 2024-03-19 | 2024-07-12 | 成都宇能通能源开发有限公司 | Car as a house energy storage system |
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Effective date of registration: 20200810 Address after: 427000 building 18 standard factory building, Zone C, Zhangjiajie Economic Development Zone, Zhangjiajie City, Hunan Province Patentee after: Hunan xilaike Electric Power Technology Co.,Ltd. Address before: High tech Zone Gaopeng road in Chengdu city of Sichuan province 610017 5 block A No. 2 public platform Secretary A-301 Patentee before: SICHUAN NEW ENERGY EXCHANGE TECHNOLOGY Co.,Ltd. |
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Address after: 427000 18 standard workshops in Zone C of Zhangjiajie Economic Development Zone, Zhangjiajie City, Hunan Province Patentee after: Hunan xilaike Electric Power Technology Co.,Ltd. Address before: 427000 18 standard workshops in Zone C of Zhangjiajie Economic Development Zone, Zhangjiajie City, Hunan Province Patentee before: Hunan xilaike Electric Power Technology Co.,Ltd. |