CN105048017A - Method for solving problem of mutual charging and discharging among multiple battery packs - Google Patents
Method for solving problem of mutual charging and discharging among multiple battery packs Download PDFInfo
- Publication number
- CN105048017A CN105048017A CN201510481170.0A CN201510481170A CN105048017A CN 105048017 A CN105048017 A CN 105048017A CN 201510481170 A CN201510481170 A CN 201510481170A CN 105048017 A CN105048017 A CN 105048017A
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- charging
- oxide
- battery
- metal
- control module
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- 238000007600 charging Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 title claims abstract description 17
- 239000004065 semiconductor Substances 0.000 claims abstract description 72
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H02J7/0021—
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- H02J7/0026—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a method for solving a problem of mutual charging and discharging among multiple battery packs. The method comprises a battery pack charging step, a battery pack discharging step and a protection step; in the discharging process, a control module is used for sampling a current passing through a current detection module and a battery voltage; the control module enables a charging metal oxide semiconductor (MOS) tube to be an on state when the discharging current passing through the current detection module is detected by the control module; the control module enables a discharging MOS tube to be off state when the battery voltage reaching an over-discharging threshold is detected by the control module; and the discharging of all battery packs are completed until all discharging MOS tubes are off states. By the method for controlling the off of the charging MOS tubes and the discharging MOS tubes, the problem of mutual charging and discharging caused by mutual parallel connection of the battery packs with different types of voltage classes is solved; and moreover, the full-cycle process of charging and discharging of each battery pack on the condition that all battery packs are in a parallel-connection bus loop is achieved.
Description
Technical field
The present invention relates to a kind of method solving mutual discharge and recharge problem between multiple battery pack.
Background technology
Along with the consumption that is flourish, medium-sized, large-sized battery pack of electronic technology is increasing.And these battery pack production, test and use procedure in, many charging and discharging processes be used.
There is following shortcoming in existing charging device or discharge equipment:
1, battery pack needs to use the battery modules of same model to carry out parallel connection use, and battery pack namely in parallel requires that each cell voltage is identical, the battery modules of complete different type, electric pressure can not be carried out input and output in parallel.Because in battery pack, the difference between monomer always exists, and for capacity, its otherness is tending towards disappearing never, but progressively worsen.Same electric current is flow through in battery pack, comparatively speaking, the large person of capacity be always in small area analysis shallow fill shallowly to put, be tending towards capacity attenuation slowly, life, and the little person of capacity is always in big current super-charge super-discharge, is tending towards capacity attenuation quickening, the lost of life, performance parameter difference is increasing between the two, form positive feedback characteristic, low capacity premature failure, the group lost of life.
2, the discharge and recharge step of battery pack cannot reach the function of complete alternation, and the use of battery pack is bothered.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the method for mutual discharge and recharge problem between the multiple battery pack of a kind of simple, that convenient operation, reliability are strong solution is provided, solve the problem that prior art cannot realize complete alternation discharge and recharge.
The object of the invention is to be achieved through the following technical solutions: a kind of method solving mutual discharge and recharge problem between multiple battery pack, comprise batteries charging step, battery power discharge step and protection step; Described battery pack comprises the battery modules of multiple parallel connection, described battery modules comprises charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, temp control switch and the battery of series connection, also comprise the control module be connected with charging metal-oxide-semiconductor, discharge metal-oxide-semiconductor, current detection module, temp control switch and battery, and the temperature sampling circuit be connected with control module;
Described battery power discharge step comprises following sub-step:
S11: before discharge process, all charging metal-oxide-semiconductors are in closed condition, and all electric discharge metal-oxide-semiconductors are in opening, and all battery modules are got up by the diodes in parallel of the course of discharge that charging metal-oxide-semiconductor inside allows;
S12: start electric discharge, the battery modules that voltage is the highest is discharged at first; Control module is sampled to the electric current through current detection module, also samples to the voltage of battery:
(1) when control module detects the discharging current through current detection module, charging metal-oxide-semiconductor is placed in opening by control module, adds electric discharge sequence in parallel by this battery modules; Until all charging metal-oxide-semiconductors are all 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 closed condition by control module; Until all electric discharge metal-oxide-semiconductors are in closed condition, represent that all battery modules have all been discharged;
Described batteries charging step comprises following sub-step:
S21: before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors are in closed condition, and all battery modules are all together in parallel by the diode in the charging direction that electric discharge metal-oxide-semiconductor inside allows;
S22: start charging, first charging current enters the minimum battery modules of voltage; Control module is sampled to the electric current through current detection module, also samples to the voltage of battery:
(1) when control module detects the charging current through current detection module, electric discharge metal-oxide-semiconductor is placed in opening by control module, adds charging sequence in parallel by this battery modules; Until all electric discharge metal-oxide-semiconductors are all 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 closed condition by control module; Until all charging metal-oxide-semiconductors are in closed condition, represent that all battery modules bulk charges complete;
Described protection step is: in the process that batteries charging step, battery power discharge step are carried out, the temperature of described temperature sampling circuit to battery modules is sampled, and when temperature is too high, control module control temperature control switch cuts off.
Described current detection module comprises a current sense resistor RSC.
Described battery modules is the battery modules of identical or dissimilar electric pressure.
Described temperature sampling circuit is arranged in the battery core of battery.
The invention has the beneficial effects as follows:
(1) the present invention is not overcharging on the basis of only putting, solve with electric discharge metal-oxide-semiconductor method for opening and closing the problem that the meeting parallel with one another of multiple battery modules causes mutual discharge and recharge by controlling charging metal-oxide-semiconductor, or even the parallel connection of the battery modules of complete different type voltage grade.
(2) present invention achieves when all battery modules all in a bus bar circuit in parallel, export only have positive and negative two lines, each battery modules all can realize the total recycle process of charge and discharge: the charging metal-oxide-semiconductor after charge step completes is identical with the initial condition of discharge step with the open and-shut mode of electric discharge metal-oxide-semiconductor, and the charging metal-oxide-semiconductor in like manner after discharge step completes is identical with the initial condition of charge step with the open and-shut mode of electric discharge metal-oxide-semiconductor.
(3) the present invention also comprises temperature sampling circuit for the protection of battery modules and temp control switch, disconnects this battery modules, have fail safe when the temperature of battery modules is higher.
(4) the present invention is simple, convenient operation, and reliability is strong.
Accompanying drawing explanation
Fig. 1 is the inventive method flow chart;
Fig. 2 is battery pack structure block diagram;
Fig. 3 is battery modules circuit diagram;
Fig. 4 is that electric discharge completes equivalent circuit diagram;
Fig. 5 is charging complete equivalent circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail: as shown in Figure 1, a kind of method solving mutual discharge and recharge problem between multiple battery pack, comprises batteries charging step, battery power discharge step and protection step; Battery pack described as shown in Figure 2 comprises the battery modules of multiple parallel connection, as shown in Figure 3, described battery modules comprises charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, temp control switch and the battery of series connection, also comprise the control module be connected with charging metal-oxide-semiconductor, discharge metal-oxide-semiconductor, current detection module, temp control switch and battery, and the temperature sampling circuit be connected with control module;
Described battery power discharge step comprises following sub-step:
S11: before discharge process, all charging metal-oxide-semiconductors are in closed condition, and all electric discharge metal-oxide-semiconductors are in opening, and all battery modules are got up by the diodes in parallel of the course of discharge that charging metal-oxide-semiconductor inside allows;
S12: start electric discharge, due to the relation of voltage competition, the battery modules that voltage is the highest is discharged at first; Control module is sampled to the electric current through current detection module, also samples to the voltage of battery:
(1) when control module detects the discharging current through current detection module, charging metal-oxide-semiconductor is placed in opening by control module, adds electric discharge sequence in parallel by this battery modules, avoids charging metal-oxide-semiconductor to bear discharging current; Until all charging metal-oxide-semiconductors are all 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 closed condition by control module, and electric discharge metal-oxide-semiconductor now plays not overdischarge; Until all electric discharge metal-oxide-semiconductors are in closed condition, represent that all battery modules have all been discharged, equivalent circuit diagram as shown in Figure 4.
After electric discharge completes, charging metal-oxide-semiconductor is in opening, and electric discharge metal-oxide-semiconductor is in closed condition, identical with the initial condition of the metal-oxide-semiconductor that discharges with the charging metal-oxide-semiconductor required for charge battery step.
Described batteries charging step comprises following sub-step:
S21: before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors are in closed condition, and all battery modules are all together in parallel by the diode in the charging direction that electric discharge metal-oxide-semiconductor inside allows;
S22: start charging, due to the relation of voltage competition, first charging current enters the minimum battery modules of voltage; Control module is sampled to the electric current through current detection module, also samples to the voltage of battery:
(1) when control module detects the charging current through current detection module, electric discharge metal-oxide-semiconductor is placed in opening by control module, adds charging sequence in parallel by this battery modules; Until all electric discharge metal-oxide-semiconductors are all 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 closed condition by control module, and charging metal-oxide-semiconductor now plays not overcharge; Until all charging metal-oxide-semiconductors are in closed condition, represent that all battery modules bulk charges complete, equivalent circuit diagram as shown in Figure 5.
After charging complete, electric discharge metal-oxide-semiconductor is in opening, and charging metal-oxide-semiconductor is in closed condition, identical with the initial condition of the metal-oxide-semiconductor that discharges with the charging metal-oxide-semiconductor required for battery discharge step.
Described current detection module comprises a current sense resistor RSC.
Described battery modules is the battery modules of identical or dissimilar electric pressure.
Described protection step is: in the process that batteries charging step, battery power discharge step are carried out, the temperature of described temperature sampling circuit to battery modules is sampled, and when temperature is too high, control module control temperature control switch cuts off.
Claims (4)
1. solve a method for discharge and recharge problem mutually between multiple battery pack, it is characterized in that: comprise batteries charging step, battery power discharge step and protection step; Described battery pack comprises the battery modules of multiple parallel connection, described battery modules comprises charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, temp control switch and the battery of series connection, also comprise the control module be connected with charging metal-oxide-semiconductor, discharge metal-oxide-semiconductor, current detection module, temp control switch and battery, and the temperature sampling circuit be connected with control module;
Described battery power discharge step comprises following sub-step:
S11: before discharge process, all charging metal-oxide-semiconductors are in closed condition, and all electric discharge metal-oxide-semiconductors are in opening, and all battery modules are got up by the diodes in parallel of the course of discharge that charging metal-oxide-semiconductor inside allows;
S12: start electric discharge, the battery modules that voltage is the highest is discharged at first; Control module is sampled to the electric current through current detection module, also samples to the voltage of battery:
(1) when control module detects the discharging current through current detection module, charging metal-oxide-semiconductor is placed in opening by control module, adds electric discharge sequence in parallel by this battery modules; Until all charging metal-oxide-semiconductors are all 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 closed condition by control module; Until all electric discharge metal-oxide-semiconductors are in closed condition, represent that all battery modules have all been discharged;
Described batteries charging step comprises following sub-step:
S21: before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors are in closed condition, and all battery modules are all together in parallel by the diode in the charging direction that electric discharge metal-oxide-semiconductor inside allows;
S22: start charging, first charging current enters the minimum battery modules of voltage; Control module is sampled to the electric current through current detection module, also samples to the voltage of battery:
(1) when control module detects the charging current through current detection module, electric discharge metal-oxide-semiconductor is placed in opening by control module, adds charging sequence in parallel by this battery modules; Until all electric discharge metal-oxide-semiconductors are all 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 closed condition by control module; Until all charging metal-oxide-semiconductors are in closed condition, represent that all battery modules bulk charges complete;
Described protection step is: in the process that batteries charging step, battery power discharge step are carried out, the temperature of described temperature sampling circuit to battery modules is sampled, and when temperature is too high, control module control temperature control switch cuts off.
2. a kind of method solving mutual discharge and recharge problem between multiple battery pack according to claim 1, is characterized in that: described current detection module comprises a current sense resistor RSC.
3. a kind of method solving mutual discharge and recharge problem between multiple battery pack according to claim 1, is characterized in that: described battery modules is the battery modules of identical or dissimilar electric pressure.
4. a kind of method solving mutual discharge and recharge problem between multiple battery pack according to claim 1, is characterized in that: described temperature sampling circuit is arranged in the battery core of battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510481170.0A CN105048017B (en) | 2015-08-03 | 2015-08-03 | It is a kind of to solve the problems, such as between multiple battery packs the mutually method of discharge and recharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510481170.0A CN105048017B (en) | 2015-08-03 | 2015-08-03 | It is a kind of to solve the problems, such as between multiple battery packs the mutually method of discharge and recharge |
Publications (2)
| Publication Number | Publication Date |
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| CN105048017A true CN105048017A (en) | 2015-11-11 |
| CN105048017B CN105048017B (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510481170.0A Active CN105048017B (en) | 2015-08-03 | 2015-08-03 | It is a kind of to solve the problems, such as between multiple battery packs the mutually method of discharge and recharge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712221A (en) * | 2017-03-13 | 2017-05-24 | 四川力垦锂动力科技有限公司 | Charging and discharging management circuit of lithium ion storage battery |
| 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 |
| CN112803506A (en) * | 2019-10-28 | 2021-05-14 | 苏州宝时得电动工具有限公司 | Electric tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372364A (en) * | 2001-02-20 | 2002-10-02 | 精工电子有限公司 | Controller for electricity recharge/discharge |
| US20100092844A1 (en) * | 2008-10-10 | 2010-04-15 | Takashi Takeda | Battery Pack |
| CN102377203A (en) * | 2010-08-26 | 2012-03-14 | 联想(北京)有限公司 | Electronic equipment and charging control method thereof |
-
2015
- 2015-08-03 CN CN201510481170.0A patent/CN105048017B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372364A (en) * | 2001-02-20 | 2002-10-02 | 精工电子有限公司 | Controller for electricity recharge/discharge |
| US20100092844A1 (en) * | 2008-10-10 | 2010-04-15 | Takashi Takeda | Battery Pack |
| CN102377203A (en) * | 2010-08-26 | 2012-03-14 | 联想(北京)有限公司 | Electronic equipment and charging control method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712221A (en) * | 2017-03-13 | 2017-05-24 | 四川力垦锂动力科技有限公司 | Charging and discharging management circuit of lithium ion storage battery |
| 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 |
| CN112803506A (en) * | 2019-10-28 | 2021-05-14 | 苏州宝时得电动工具有限公司 | Electric tool |
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| Publication number | Publication date |
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| CN105048017B (en) | 2017-08-11 |
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Effective date of registration: 20200609 Address after: 835000 E Factory Building of Huining Road 999 Small and Medium-sized Enterprise Business Incubation Park, Holgos Economic Development Zone, Yili Kazakh Autonomous Prefecture, Xinjiang Uygur Autonomous Region (1st floor and interlayer) Patentee after: Xinjiang SMEI new energy 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. |