CN110417073B - Control method of lithium battery charging platform - Google Patents
Control method of lithium battery charging platform Download PDFInfo
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- CN110417073B CN110417073B CN201910094576.1A CN201910094576A CN110417073B CN 110417073 B CN110417073 B CN 110417073B CN 201910094576 A CN201910094576 A CN 201910094576A CN 110417073 B CN110417073 B CN 110417073B
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- 238000007600 charging Methods 0.000 title claims abstract description 273
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 235
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 235
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007599 discharging Methods 0.000 claims description 15
- 238000010277 constant-current charging Methods 0.000 claims description 8
- 238000010280 constant potential charging Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 2
- 241000764238 Isis Species 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Classifications
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- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a control method of a lithium battery charging platform, which relates to the field of lithium battery charging and solves the problem that a worker cannot be connected into charging sockets with priority levels in advance according to the urgent charging degree of a plurality of lithium batteries to be charged at present, and the technical scheme is characterized in that: acquiring current state information of a lithium battery to be charged, which is accessed to a charging socket of a lithium battery charging platform; in the corresponding relation between the state information of the lithium battery to be charged and the priority information of the charging socket of the lithium battery charging platform, searching the priority information of the charging socket of the lithium battery charging platform corresponding to the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform; the control method of the lithium battery charging platform can directly match the priority information of the charging socket of the lithium battery charging platform according to the current state information of the lithium battery to be charged, which is accessed by the charging socket of the lithium battery charging platform.
Description
Technical Field
The invention relates to the field of lithium battery charging, in particular to a control method of a lithium battery charging platform.
Background
With the continuous development of new energy science and technology, lithium ion batteries are widely applied to various products such as electric tools at present. The lithium battery has excellent cycle performance, can be charged and discharged quickly, has charging efficiency as high as 100 percent, has large output power and long service life, does not contain toxic and harmful substances, and is called as a green battery.
A lithium cell package for electric tool power supply, when the electric quantity was not enough in the lithium cell package, need to take the charging platform with the lithium cell package and charge. Lithium battery charging platform with a plurality of charging socket once can only charge for one of them lithium cell, therefore the last charging socket who has set gradually priority level in advance of lithium battery charging platform, for example according to charging socket No. 1, charging socket No. 2, … … N charging socket's the sequencing grade charges for the lithium cell package of its department that corresponds in proper order, have and only when the lithium cell package that inserts in charging socket No. 1 is full of the electricity after, charging platform just charges for the lithium cell that inserts in charging socket No. 2.
Make when a plurality of lithium batteries of waiting to charge that take off from electric tool insert in lithium battery charging platform's charging socket, the staff does not know specifically which lithium battery of waiting to charge leaves the electric quantity at present fewest and urgently need the very first time to charge for the staff can't insert in the charging socket who has set gradually priority in advance according to the urgent need charge degree of a plurality of lithium batteries of waiting to charge at present, consequently has the space of improvement.
Disclosure of Invention
The invention aims to provide a control method of a lithium battery charging platform, which can be used for directly matching priority information of a charging socket of the lithium battery charging platform according to current state information of a lithium battery to be charged, which is accessed by the charging socket of the lithium battery charging platform.
The technical purpose of the invention is realized by the following technical scheme:
a control method of a lithium battery charging platform comprises the following steps:
acquiring current state information of a lithium battery to be charged, which is accessed to a charging socket of a lithium battery charging platform;
searching for lithium battery charging platform charging socket priority level information corresponding to the current state information of a lithium battery to be charged, which is accessed to a lithium battery charging platform charging socket, from a preset corresponding relationship between the state information of the lithium battery to be charged, which is accessed to the lithium battery charging platform charging socket, and the lithium battery charging platform charging socket priority level information; the state information of the lithium battery to be charged comprises information of the remaining electric quantity to be charged associated with the priority level information of the charging socket of the lithium battery charging platform;
and providing priority charging service for the lithium battery to be charged accessed to the charging socket of the lithium battery charging platform according to the priority information of the charging socket of the lithium battery charging platform.
By adopting the technical scheme, according to the current state of the lithium battery to be charged fed back by the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform, the priority information of the charging socket of the lithium battery charging platform corresponding to the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform is searched, priority charging service is provided for the lithium battery to be charged currently accessed to the charging socket of the lithium battery charging platform based on the priority information of the charging socket of the lithium battery charging platform corresponding to the priority information of the charging socket of the lithium battery charging platform, so that the priority of the charging socket of the lithium battery charging platform can be directly matched according to the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform, and the charging priority is more reasonable and intelligent.
The invention is further configured to: when priority charging service is provided for the lithium battery to be charged accessed to the charging socket of the lithium battery charging platform according to the priority information of the charging socket of the lithium battery charging platform, a charging indicator lamp corresponding to the charging socket on the lithium battery charging platform indicates the charging state of the lithium battery to be charged accessed to the charging socket; the state of charge of the lithium battery to be charged includes whether the lithium battery to be charged is being charged.
Through adopting above-mentioned technical scheme, the charge indicator that corresponds the socket that charges department on the lithium battery charging platform gives the instruction to the charged state who inserts in this charging socket's the lithium cell that charges that treats, and the staff of being convenient for learns whether charging in this charging socket's the lithium cell that treats that inserts at present according to the pilot lamp very first time.
The invention is further configured to: according to present lithium battery charging platform charging socket priority information arranges priority for a plurality of lithium batteries of waiting to charge who inserts in lithium battery charging platform charging socket and charges the back, and lithium battery charging platform's charging socket adopts four stage mode when treating the lithium battery that charges:
A. trickle charging; trickle charge is used for pre-charging the fully discharged lithium battery to be charged;
B. charging at constant current; when the voltage of the lithium battery to be charged rises to the trickle charge threshold
Increasing the charging current to charge for constant current;
C. charging at constant voltage; when the battery voltage rises to
When the constant current charging is finished, the constant voltage charging is started;
D. terminating the charging;
the lithium battery to be charged which is completely discharged in the stage A refers to the lithium battery to be charged with the battery voltage lower than 3V.
By adopting the technical scheme, the lithium battery is charged in the A, B, C, D four stages, so that the charging time of the lithium battery is shortened as far as possible under the condition that the quality of the lithium battery is not damaged.
The invention is further configured to: wherein the current of constant current charging in the stage B is in the range of 0.2C-1.0C; and C is the standard charging speed associated with the capacity of the lithium battery to be charged currently.
By adopting the technical scheme, the current in constant current charging is not required to be very accurate, and the quasi-constant current can also be used, and in the linear charging design, the current often rises along with the rise of the voltage of the battery so as to reduce the heat dissipation problem on the transmission transistor as much as possible.
The invention is further configured to: when the lithium battery charging platform is started to charge the lithium battery to be charged connected to the charging socket, the discharging service time of the current lithium battery to be charged is displayed at the charging socket on the lithium battery charging platform
。
By adopting the technical scheme, the current lithium battery to be charged can discharge the service time
The display of (2) is convenient for the staff according to the degree and the live time that this battery is badly needed at present, can take off the lithium cell that is charging in a flexible way and use.
The invention is further configured to: the discharging service time of the current lithium battery to be charged is displayed at the charging socket on the lithium battery charging platform
The calculation is gradually slowed down in an exponential mode according to the current residual capacity of the lithium battery to be charged, and the calculation formula is as follows;
By adopting the technical scheme, the discharge service time of the current lithium battery to be charged is calculated by adopting an exponential gradually-slowing calculation mode
And the accuracy is high.
The invention is further configured to: suppose a lithium battery to be charged is capacity-rated
Begins to decay and passes through->
Hour(s)Attenuated to->
The column write equation is:
obtaining:
；
by adopting the technical scheme, the lithium battery to be charged has the capacity of capacity
Begins to decay and passes through->
Hour decays to
The charging and using time (or more) of the lithium battery to be charged can be calculated by fully utilizing the known data>
And the accuracy is high.
In conclusion, the invention has the following beneficial effects: the priority information of the charging socket of the lithium battery charging platform can be directly matched according to the current state information of the lithium battery to be charged, which is accessed to the charging socket of the lithium battery charging platform.
Drawings
Fig. 1 is a flow chart of a lithium battery charging platform control method;
fig. 2 is a first schematic structural diagram of a lithium battery charging platform;
FIG. 3 is a schematic structural diagram II of a lithium battery charging platform;
FIG. 4 is a first schematic circuit diagram of the interior of a lithium battery charging platform;
fig. 5 is a schematic circuit diagram of the internal circuit of the lithium battery charging platform.
In the figure: 1. a charging housing; 2. a charging jack; 3. a handle; 4. heat dissipation holes; 5. a USB socket.
Detailed Description
The present invention is described in further detail below with reference to FIGS. 1-5.
The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.
Referring to fig. 1, an embodiment of the invention provides a method for controlling a lithium battery charging platform, and a main flow of the method is described as follows.
As shown in fig. 1:
step 110: and acquiring the current state information of the lithium battery to be charged, which is accessed to the charging socket of the lithium battery charging platform.
Step 120: searching the priority information of the lithium battery charging platform corresponding to the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform from the preset corresponding relationship between the state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform and the priority information of the charging socket of the lithium battery charging platform; the state information of the lithium battery to be charged comprises information of the remaining electric quantity to be charged, which is associated with the priority information of the charging socket of the lithium battery charging platform.
Step 130: and providing priority charging service for the lithium battery to be charged accessed to the charging socket of the lithium battery charging platform according to the priority information of the charging socket of the current lithium battery charging platform.
According to the current state of the lithium battery to be charged fed back by the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform, the priority information of the charging socket of the lithium battery charging platform corresponding to the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform is searched, priority charging service is provided for the lithium battery to be charged currently accessed to the charging socket of the lithium battery charging platform based on the priority information of the charging socket of the lithium battery charging platform corresponding to the priority information of the charging socket of the lithium battery charging platform, so that the priority of the charging socket of the lithium battery charging platform can be directly matched according to the current state information of the lithium battery to be charged accessed by the charging socket of the lithium battery charging platform, and the charging priority is more reasonable and intelligent.
In this embodiment, the state information of the lithium battery to be charged includes information of remaining power to be associated with the priority information of the charging socket of the charging platform of the lithium battery, that is, the remaining power of the lithium battery to be charged; and the priority information of the charging socket of the lithium battery charging platform also can be used for preferentially charging the lithium battery to be charged with the least residual electric quantity.
When priority charging service is provided for a lithium battery to be charged accessed to a charging socket of a lithium battery charging platform according to priority information of the charging socket of the lithium battery charging platform, a charging indicator lamp corresponding to the charging socket on the lithium battery charging platform indicates the charging state of the lithium battery to be charged accessed to the charging socket; the charging state of the lithium battery to be charged comprises whether the lithium battery to be charged is charged or not; when the lithium battery to be charged connected with the charging socket is being charged, the indicator lamp at the charging socket works, and when the lithium battery to be charged connected with the charging socket is not being charged, the indicator lamp at the charging socket does not work.
According to the priority information of the charging socket of the current lithium battery charging platform, after a plurality of lithium batteries to be charged which are accessed to the charging socket of the lithium battery charging platform are charged in a priority arrangement mode, the charging socket of the lithium battery charging platform adopts four stage modes when the lithium batteries to be charged are charged:
A. trickle charging; the trickle charge is used for pre-charging the fully discharged lithium battery to be charged;
B. charging at constant current; when the voltage of the lithium battery to be charged rises to the trickle charge thresholdValue of
When the charging current is increased, the constant current charging is carried out;
C. charging at constant voltage; when the battery voltage rises to
When the constant current charging is finished, the constant voltage charging is started;
D. terminating the charging;
the lithium battery to be charged which is completely discharged in the stage A refers to the lithium battery to be charged with the battery voltage lower than 3V. The current of constant current charging in the stage B ranges from 0.2C to 1.0C; c is a standard charging speed associated with the capacity of the lithium battery to be charged currently; and is
Is 200mA, is>
The voltage is 4.2V, the lithium battery is charged in A, B, C, D four stages, and the charging time of the lithium battery is shortened as far as possible under the condition that the quality of the lithium battery is not damaged.
When the lithium battery charging platform is started to charge the lithium battery to be charged connected to the charging socket, the discharging service time of the current lithium battery to be charged is displayed at the charging socket on the lithium battery charging platform
. The lithium battery charging platform displays the discharging use time of the current lithium battery to be charged at the charging socket>
The calculation is gradually slowed down in an exponential mode according to the current residual capacity of the lithium battery to be charged, and the calculation formula is as follows;
Suppose a lithium battery to be charged is capacity-rated
Where it begins to decay past->
Hour decays to >>
The column write equation is:
obtaining:
；
through data in multiple test processes, the attenuation coefficient of the lithium battery to be charged during use and discharge and the allowed standing time of the lithium battery to be charged before use and discharge can be obtained
And then the discharging use time of the lithium battery to be charged connected to the charging socket on the lithium battery charging platform is greater or less than the preset discharge use time>
The calculation is more accurate and reasonable.
Referring to fig. 2 and 3, the lithium battery charging platform includes a movable charging housing 1, a circuit board disposed inside the charging housing 1, a first transformer disposed on the circuit board and coupled to the commercial power to convert the commercial power into a lithium battery pack, and a charging socket 2 disposed on the charging housing 1 and coupled to the first transformer for the lithium battery pack to be inserted. And a handle 3 is protrudingly formed at one end of the charging case 1.
The number of first transformers is equal to the number of charging jacks 2. In this embodiment, the number of the first transformers is six, the number of the charging sockets 2 is three on the front side of the charging shell 1 at equal intervals, the number of the charging sockets 2 is three on the back side of the charging shell 1 at equal intervals, and the charging sockets 2 are arranged at equal intervals, so that the adjacent lithium battery packs which are being charged can keep a proper distance, and the safety of the charging process is improved. A plurality of louvres 4 have been seted up between adjacent charging socket 2, because charging socket 2 department all is provided with first transformer, and first transformer produces the heat at the during operation, has seted up a plurality of louvres 4 between adjacent charging socket 2, is convenient for in time dispel the heat, improves the life of first transformer.
Still be equipped with the second transformer that is coupled in the commercial power on the circuit board, the casing 1 that charges still is equipped with the USB socket 5 that is coupled in the second transformer, the setting of second transformer and USB socket 5 for the charging platform can charge cell-phone or other electronic equipment, improves the application range of charging platform. The number of the second transformers is the same as that of the USB sockets 5, in this embodiment, the number of the USB sockets 5 is two, the charging voltage of the two USB sockets 5 is the same as 5V, and the charging current is 1A and 2A, respectively. The charging sockets 2 are all provided with indicating lamps for indicating whether the charging sockets 2 are charged currently, when the charging sockets 2 charge the accessed external lithium battery packs, the indicating lamps work, otherwise, the indicating lamps do not work; fig. 4 and 5 are schematic circuit diagrams of the charging platform in this embodiment, which are common general knowledge of those skilled in the art and are not described herein again.
The technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute all or part of the steps of the method of the embodiments of the present application.
The above embodiments are only used to describe the technical solutions of the present application in detail, but the above embodiments are only used to help understanding the method and the core idea of the present invention, and should not be construed as limiting the present invention. Those skilled in the art should also appreciate that various modifications and substitutions can be easily made without departing from the scope of the present invention.
Claims (2)
1. A control method of a lithium battery charging platform is characterized by comprising the following steps:
acquiring current state information of a lithium battery to be charged, which is accessed to a charging socket of a lithium battery charging platform;
searching for lithium battery charging platform charging socket priority level information corresponding to the current state information of a lithium battery to be charged, which is accessed to a lithium battery charging platform charging socket, from a preset corresponding relationship between the state information of the lithium battery to be charged, which is accessed to the lithium battery charging platform charging socket, and the lithium battery charging platform charging socket priority level information; the state information of the lithium battery to be charged comprises information of the remaining electric quantity to be charged associated with the priority level information of the charging socket of the lithium battery charging platform;
providing priority charging service for a lithium battery to be charged accessed to a charging socket of the lithium battery charging platform according to the priority information of the charging socket of the lithium battery charging platform;
according to present lithium battery charging platform charging socket priority information arranges priority for a plurality of lithium batteries of waiting to charge who inserts in lithium battery charging platform charging socket and charges the back, and lithium battery charging platform's charging socket adopts four stage mode when treating the lithium battery that charges:
A. trickle charging; trickle charge is used for pre-charging the fully discharged lithium battery to be charged;
B. charging at constant current; when the voltage of the lithium battery to be charged rises to the trickle charge threshold value W 1 Increasing the charging current to charge for constant current;
C. charging at constant voltage; when the voltage of the battery rises to W2, the constant-current charging is finished, and the constant-voltage charging is started;
D. terminating the charging;
the lithium battery to be charged which is completely discharged in the stage A is the lithium battery to be charged with the battery voltage lower than 3V;
wherein the current of constant current charging in the stage B is in the range of 0.2C-1.0C; c is a standard charging speed associated with the capacity of the lithium battery to be charged currently;
when the lithium battery charging platform starts to charge the lithium battery to be charged connected to the charging socket, the discharging service time t of the current lithium battery to be charged is displayed at the charging socket on the lithium battery charging platform;
the calculation of the discharging service time t of the current lithium battery to be charged is displayed at the charging socket on the lithium battery charging platform and gradually slows down according to the current residual electric quantity of the lithium battery to be charged in an exponential form, and the calculation formula is as follows;
N 0 the current residual capacity of the lithium battery to be charged is set;
n (t) is the minimum capacity required to be kept when the lithium battery to be charged is discharged for use, and once the residual capacity of the lithium battery to be charged is less than N (t), the service life of the lithium battery to be charged is shortened;
l is the time that the lithium battery to be charged can stand before discharging in use;
alpha is the attenuation coefficient of the lithium battery to be charged during discharging;
suppose a lithium battery to be charged has a slave capacity N init Begins to decay to N after m hours finish The column write equation is:
2. the method of claim 1, wherein the method comprises the steps of: when priority charging service is provided for the lithium battery to be charged accessed to the charging socket of the lithium battery charging platform according to the priority information of the charging socket of the lithium battery charging platform, a charging indicator lamp corresponding to the charging socket on the lithium battery charging platform indicates the charging state of the lithium battery to be charged accessed to the charging socket; the state of charge of the lithium battery to be charged includes whether the lithium battery to be charged is being charged.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916455A (en) * | 2011-08-05 | 2013-02-06 | 金帆新能源科技(上海)有限公司 | Novel charging station system |
| CN105974326A (en) * | 2016-06-01 | 2016-09-28 | 华霆（合肥）动力技术有限公司 | Lithium battery service life pre-estimation method and device |
| CN108819747A (en) * | 2018-06-13 | 2018-11-16 | 蔚来汽车有限公司 | The multiple branch circuit power allocation management of multiple branch circuit energy-storage system |
| CN108879857A (en) * | 2018-07-18 | 2018-11-23 | 北京航空航天大学 | A kind of universal lithium battery wireless charging system |
-
2019
- 2019-01-31 CN CN201910094576.1A patent/CN110417073B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916455A (en) * | 2011-08-05 | 2013-02-06 | 金帆新能源科技(上海)有限公司 | Novel charging station system |
| CN105974326A (en) * | 2016-06-01 | 2016-09-28 | 华霆（合肥）动力技术有限公司 | Lithium battery service life pre-estimation method and device |
| CN108819747A (en) * | 2018-06-13 | 2018-11-16 | 蔚来汽车有限公司 | The multiple branch circuit power allocation management of multiple branch circuit energy-storage system |
| CN108879857A (en) * | 2018-07-18 | 2018-11-23 | 北京航空航天大学 | A kind of universal lithium battery wireless charging system |
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Application publication date: 20191105 Assignee: Zhejiang mingpeng New Energy Technology Co.,Ltd. Assignor: Zhejiang Minglei lithium energy technology Co.,Ltd. Contract record no.: X2024980016556 Denomination of invention: A control method for a lithium battery charging platform Granted publication date: 20230407 License type: Common License Record date: 20240926 |
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