CN112786983A - Charging method, charger and charging system - Google Patents
Charging method, charger and charging system Download PDFInfo
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- CN112786983A CN112786983A CN202110129336.8A CN202110129336A CN112786983A CN 112786983 A CN112786983 A CN 112786983A CN 202110129336 A CN202110129336 A CN 202110129336A CN 112786983 A CN112786983 A CN 112786983A
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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
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
Abstract
The embodiment of the invention relates to the technical field of battery charging, in particular to a charging method, a charger and a charging system. If the charging mode is a parallel charging mode, performing parallel charging on at least two batteries; and if the charging mode is a rotation charging mode, performing rotation charging on the at least two batteries. Based on the characteristics of alternate constant voltage charging and parallel constant current charging, the alternate charging mode is selected, so that a user can obtain a fully charged battery in a short time, and the parallel charging mode is selected, so that the total charging time of a plurality of batteries can be effectively shortened. Through two kinds of mode switching of charging, can satisfy the diversified demands of user to charging, intelligence is convenient moreover.
Description
Technical Field
The embodiment of the invention relates to the technical field of battery charging, in particular to a charging method, a charger and a charging system.
Background
With the diversification of the functions of electronic products, the cruising ability of the battery consumption thereof is increased along with the functions of the electronic products. Based on the endurance of single battery is limited, generally be equipped with a plurality of batteries to supply seamless change, like current consumer unmanned aerial vehicle, in practical application, be equipped with a plurality of on-board batteries. Just as the number of on-board batteries increases, there are also many problems with battery charging.
The current common charging mode is to charge one battery through one charger, when a plurality of batteries need to be charged, if a plurality of chargers are adopted to charge each battery respectively, the plurality of chargers occupy a plurality of sockets, and the charging lines are messy, complex to operate and inconvenient to carry; if one charger is used for charging a plurality of batteries, the batteries need to be replaced manually, other batteries are easily and inadvertently not charged, and the total time required for charging the plurality of batteries is long. In addition, based on different use scenes, the charging requirements of users are different, for example, when a user is in a hurry to use the device (unmanned aerial vehicle) for a short time, a full battery needs to be obtained as soon as possible, and when the user is ready to use the device (unmanned aerial vehicle) for a long time, all full batteries need to be obtained as soon as possible.
Disclosure of Invention
The embodiment of the invention mainly solves the technical problem of providing a charging method, a charger and a charging system, which can meet the diversified charging requirements of users and are intelligent and convenient.
In order to solve the technical problem, in a first aspect, an embodiment of the present invention provides a charging method, including:
acquiring a charging mode, wherein the charging mode comprises a rotation charging mode or a parallel charging mode;
if the charging mode is a parallel charging mode, performing parallel charging on at least two batteries;
and if the charging mode is a rotation charging mode, performing rotation charging on the at least two batteries.
In some embodiments, the charging at least two batteries in parallel comprises:
acquiring battery information of the at least two batteries, wherein the battery information comprises charge parameters;
acquiring a first battery with the lowest charge parameter according to the battery information, and charging the first battery;
and acquiring a second battery with the lowest charge parameter according to the battery information, if the charge parameter of the second battery and the charge parameter of the first battery meet a preset condition, charging the second battery, and returning to the step of acquiring the battery information of the at least two batteries until all the batteries are charged.
In some embodiments, the preset condition is that a difference between the charge parameter of the second battery and the charge parameter of the first battery is less than a preset threshold.
In some embodiments, the alternately charging the at least two batteries includes:
acquiring battery information of the at least two batteries, wherein the battery information comprises charge parameters;
sorting the at least two batteries according to the information of the batteries to obtain a sorting result;
and controlling the at least two batteries to be charged in sequence according to the sequencing result until all the batteries are charged.
In some embodiments, the sorting the at least two batteries according to the information of the batteries to obtain a sorting result includes:
sequencing the at least two batteries from high to low according to the charge parameters according to the information of the batteries so as to obtain a descending sequencing result;
controlling the at least two batteries to be charged in sequence according to the sequencing result until all the batteries are charged, and the method comprises the following steps:
and alternately charging the at least two batteries from high to low according to the charge parameters until all the batteries are charged according to the descending order arrangement result.
In some embodiments, the battery information includes a battery temperature and a battery status, and before charging the at least two batteries, the method further comprises:
judging whether the battery temperatures of the at least two batteries are within a preset temperature range or not, and judging whether the battery states of the at least two batteries are normal or not;
and if the temperature of each battery is within the preset temperature range and the state of each battery is normal, charging the at least two batteries.
In some embodiments, the charge parameter includes charge information, the method further comprising:
and stopping charging the fully charged battery when the electric quantity of one of the at least two batteries is fully charged.
In order to solve the above technical problem, in a second aspect, an embodiment of the present invention provides a charger, including:
a charging power supply is arranged on the base station,
the charging interfaces are respectively connected with the charging power supply and are used for connecting batteries, so that the charging power supply and the correspondingly connected batteries form a charging loop through each charging interface;
an input module for inputting a charging mode;
a controller connected to the input module and the charging power supply, respectively, the controller being connected in communication with at least two batteries such that the controller is configured to perform the method of the first aspect.
In order to solve the above technical problem, in a third aspect, an embodiment of the present invention provides a charging system, including: at least two batteries and the charger of the second aspect, one of the batteries is connected with a charging interface of the charger.
In order to solve the above technical problem, in a fourth aspect, an embodiment of the present invention provides a non-volatile computer-readable storage medium storing computer-executable instructions that, when executed by a processor, cause the processor to perform the method according to the first aspect.
The embodiment of the invention has the following beneficial effects: different from the situation in the prior art, the charging method provided by the embodiment of the invention obtains the charging mode input by the user, and the charging mode includes a rotation charging mode or a parallel charging mode. If the charging mode is a parallel charging mode, performing parallel charging on at least two batteries; and if the charging mode is a rotation charging mode, performing rotation charging on the at least two batteries. Based on the characteristics of alternate constant voltage charging and parallel constant current charging, the alternate charging mode is selected, so that a user can obtain a fully charged battery in a short time, and the parallel charging mode is selected, so that the total charging time of a plurality of batteries can be effectively shortened. Through two kinds of mode switching of charging, can satisfy the diversified demands of user to charging, intelligence is convenient moreover.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a charging system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a charger according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a charger according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a charging method according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a sub-process of step S22 in the method of FIG. 4;
FIG. 6 is a schematic flow chart illustrating a sub-process of step S23 in the method of FIG. 5;
FIG. 7 is a schematic view of a sub-flow of steps S232 and S233 of the method of FIG. 5;
fig. 8 is a schematic flowchart of a charging method according to an embodiment of the present invention;
fig. 9 is a flowchart illustrating a charging method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the present application. Additionally, while functional block divisions are performed in apparatus schematics, with logical sequences shown in flowcharts, in some cases, steps shown or described may be performed in sequences other than block divisions in apparatus or flowcharts. Further, the terms "first," "second," "third," and the like, as used herein, do not limit the data and the execution order, but merely distinguish the same items or similar items having substantially the same functions and actions.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, a charging system 100 according to a first embodiment of the present application includes a charger 10 and at least two batteries 20, the charger 10 has a plurality of charging interfaces, and a battery 20 can be connected to a charging interface for charging.
The battery 20 refers to a lithium battery (lithium ion or polymer battery). Based on the multiple batteries 20 supplying power to the same power-consuming device (e.g., the drone), the electrical parameters of the multiple batteries 20 should be substantially the same, e.g., the highest charging voltage, the battery capacity, the charging current, etc., are substantially the same.
It is to be understood that the number of the batteries 20 is not limited, and in the present application, the number of the batteries 20 is at least 2. In practical applications, the number of the batteries 20 may also be varied, for example, the charger 10 may charge 2 batteries, and as the electric device is consumed, a new battery to be charged may be replaced, and the new battery to be charged may be connected to an empty charging interface for charging, and at this time, the charger 10 charges 3 batteries. In the present application, 3 batteries are taken as an example for explanation, and the present application is not limited to only 3 batteries. In the present application, the battery is a battery capable of data communication, such as a data communication battery.
When at least two batteries 20 are respectively connected with the corresponding charging interfaces, the at least two batteries are connected in parallel. Therefore, the charger 10 can independently charge each battery 20, and specifically, can realize a plurality of charging modes: for example, one battery 20 may be charged, at least two batteries 20 may be charged in turn, or at least two batteries 20 may be charged simultaneously in parallel.
It will be appreciated that the charger 10 has the characteristic of constant current, constant voltage charging, the current of which cannot exceed the maximum current that can be tolerated by a single battery. It is understood that, in the alternate charging, one battery is charged at a time with a constant voltage, and the charging power is gradually reduced in the constant voltage stage, resulting in a relatively long total charging time required for alternately fully charging the plurality of batteries. However, alternate charging may be preferred to charge one of the batteries, and the user may be able to preferentially obtain a fully charged battery for emergency use. When charging in parallel, the plurality of batteries are charged together with a constant current, and the plurality of batteries can be charged with the maximum power, so that the total charging time required for fully charging the plurality of batteries can be shortened. That is, for the same plurality of batteries, the time for charging all the batteries in parallel is shorter than the time for charging all the batteries in round charge.
Thereby, through setting up the mode of charging, adopt a charger, can satisfy the user to the diversified demand that charges, moreover, need not a plurality of chargers, intelligence is convenient.
Referring to fig. 2, a second embodiment of the present application provides a charger 10, which can be used as the charger in the charging system of the first embodiment. The charger 10 provided in the second embodiment of the present application includes a charging power source 11, at least two charging interfaces 12, an input module 13, and a controller 14. Wherein, the at least two charging interfaces 12 are respectively connected with the charging power supply 11. The charging interface 12 is used to connect the batteries 20 such that the charging power supply 11 and the corresponding connected batteries 20 form a charging circuit via each charging interface 12. The controller 14 is connected to the input module 13 and the charging power source 11, respectively, and the controller 14 is further connected to the at least two batteries 20 in communication, so that the controller 14 can obtain the battery information of the at least two batteries 20 and obtain the charging mode input by the user, and can also control the charging mode of the charging power source 11. The battery information comprises charge parameters, and the charging mode comprises a rotation charging mode or a parallel charging mode. If the charging mode is a parallel charging mode, the controller 14 controls the charging power supply 11 to charge the at least two batteries in parallel; if the charging mode is a rotation charging mode, the controller 14 controls the charging power source 11 to rotate and charge the at least two batteries.
In some embodiments, referring to fig. 3, the charger 11 further includes at least two charging switches 15, the charging power source 11 is connected to a charging interface 12 through one charging switch 15, and the charging switch 15 is connected to the controller 14. The charging switch 15 is controlled by the controller 14 to control the on/off of the charging loop. When the battery 20 is connected to the charging interface 12 and the corresponding charging switch 15 is closed, the charging power supply 11 is electrically connected to the battery 20, so that the battery 20 can be charged, and when the corresponding charging switch 15 is opened, the charging power supply 11 is disconnected from the battery 20, so that no charging is performed. As shown in fig. 3, the charging switches 15 are in one-to-one correspondence with the charging interfaces 12, the charging power source 11 and the battery a can be electrically connected through the charging switch 1#, the charging power source 11 and the battery B can be electrically connected through the charging switch 2#, and the charging power source 11 and the battery C can be electrically connected through the charging switch 3 #. It is understood that the charge switch 15 is a switching type element. In some embodiments, the charge switch 15 may be a relay. In other embodiments, the charging switch 15 may be other types of switches that can be controlled, and is not limited in this application.
The charging power supply 11 may be a voltage with an energy storage function, or may be a power adapter to convert the commercial power into a suitable voltage or current. It should be noted that the charging power supply is a charging power supply having a constant current function and a constant voltage function. The charging power source 11 is electrically connected to each charging switch 15, respectively. In the above example, when the charge switch 1# is closed, the charge power supply 11 charges the battery a, when the charge switch 2# is closed, the charge power supply 11 charges the battery B, when the charge switch 3# is closed, the charge power supply 11 charges the battery C, when the charge switches 1#, 2#, 3# are all closed, the charge power supply 11 charges the batteries A, B and C simultaneously in parallel, and when the charge switches 1# and 2# are closed, the charge power supply 11 charges the batteries a and B simultaneously in parallel.
The input module 13 is used for inputting a charging mode selected by a user. In some embodiments, the input module 13 may be a key through which the user inputs the selected charging mode. In other embodiments, the input module 13 may be a touch screen, and the user inputs the selected charging mode through the touch screen. It is understood that the input module may also be a microphone, and the user inputs the selected charging mode through voice. In the present application, the input module is not limited at all.
The controller 14 is communicatively coupled to at least two batteries 20. In some embodiments, the controller 14 and the at least two batteries 20 may be communicatively coupled via a communication interface, which may be integrated with the charging interface into one interface. In some embodiments, the controller and the at least two batteries may also be connected for wireless communication, such as bluetooth, and in this embodiment, the batteries are smart batteries with wireless communication capability, thereby enabling the charger to communicate wirelessly with the batteries.
The controller 14 may be a separate module or may be integrated with the charging power supply, the charging switch, and the input module. The controller may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), an arm (acorn RISC machine), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components; but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine; or as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
The controller 14 is connected to each of the charging switches 15, the input module 13, and the charging power supply 11. Thus, the controller 14 can be powered by the charging power supply 11 to operate. In addition, the controller 14 may receive battery information of at least two batteries 20 to be charged and a charging mode input by the input module 13. If the charging mode is the parallel charging mode, the controller 14 controls the charging switches 15 to be turned on or off, thereby charging the at least two batteries 20 in parallel. If the charging mode is a rotation charging mode, the controller 14 rotates the at least two batteries 20 by controlling the on/off of each charging switch 15. Therefore, the user can acquire a fully charged battery in a short time by selecting the alternate charging mode, and the total charging time of a plurality of batteries can be effectively shortened by selecting the parallel charging mode. Through two kinds of mode switching of charging, can satisfy the diversified demands of user to charging, intelligence is convenient moreover.
Based on the battery information including the charge parameters, in some embodiments, the controller 14 obtains the first battery with the lowest charge parameter from the battery information, and controls the charging switch corresponding to the first battery to be closed, so that the charging power source 11 charges the first battery. Then, the controller 14 obtains the second battery with the second lowest charge parameter from the information of each battery, and if the charge parameter of the second battery and the charge parameter of the first battery meet the preset condition, the controller 14 controls the charging switch 15 corresponding to the second battery to be closed, so that the charging power supply 11 charges the second battery. With the charging process, the charge parameters of the first battery and the second battery are changed continuously, the controller 14 obtains the battery information of each battery 20 in real time, obtains a new first battery and a new second battery, and controls the charging switches 15 corresponding to the new first battery and the new second battery to be closed, so that the charging power supply charges the new first battery and the new second battery until all the batteries are charged.
The preset condition is used for limiting the relationship between the charge parameter of the second battery and the charge parameter of the first battery, so that the situation that the batteries are charged mutually due to overlarge charge parameter difference between the first battery and the second battery is avoided, namely the second battery with the large charge parameter charges the first battery with the low charge parameter.
In some embodiments, the preset condition is that the difference between the charge parameter of the second battery and the charge parameter of the first battery is less than a preset threshold. That is, when the difference between the charge parameter of the second battery and the charge parameter of the first battery is smaller than the preset threshold, the charging switch corresponding to the second battery is controlled to be closed, so that the charging power supply charges the second battery.
The charge parameters are electrical parameters of the battery measured according to parameters such as voltage, internal resistance and the like of the battery. It is understood that the charge parameter may be a battery charge or a battery open circuit voltage. In the present application, the charge parameters are not limited. For example, when a charger is connected to 4 batteries A, B, C, D, if the electric quantity of battery a is 3, the electric quantity of battery B is 3.5, the electric quantity of battery C is 5.2, and the electric quantity of battery D is 7, the preset threshold is 1, so as to obtain battery a as the first battery and battery B as the second battery, and control charging switches 1# and 2# corresponding to battery a and battery B, respectively, to be closed, so that the charging power supply charges battery a and battery B, it can be understood that the charging speeds of both batteries are the same. When the electric quantity of the first battery B exceeds 5.2, at the moment, the second battery with the lowest electric quantity is the battery C, and the first battery with the lowest electric quantity is also the battery A; if the electric quantity difference between the battery C and the battery A is smaller than 1, the charging switch corresponding to the battery C is controlled to be closed, so that the charging power supply charges the battery C (a new second battery). By analogy, when the electric quantity of the battery C is charged to 6, at this time, the second battery with the next lowest electric quantity is the battery D, and the first battery with the lowest electric quantity is also the battery a, and if the electric quantity difference between the battery D and the battery a is smaller than 1 at this time, the charging switch corresponding to the battery D is controlled to be closed, so that the rechargeable battery charges the battery D (new second battery).
In this embodiment, by setting the preset condition, the first battery and the second battery meeting the preset condition are charged in parallel, and the first battery and the second battery are continuously updated, so that the controller 14 gradually controls the charging switches 15 corresponding to the batteries to be closed from the battery with the lowest charge parameter to the direction with the highest charge parameter until all the charging switches corresponding to the batteries are closed, thereby implementing the parallel charging of the plurality of batteries.
When the charging mode is alternate charging, in some embodiments, the controller 14 sorts at least two batteries according to the information of the batteries to obtain a sorting result, then controls the charging switch 15 corresponding to the first battery in the sorting result to be closed according to the sorting result, charges only the first battery, controls the charging switch corresponding to the second battery in the sorting result to be closed after the first battery is fully charged, and so on until all the batteries are fully charged.
In some embodiments, the controller 14 orders all the batteries 20 according to the charge parameters from high to low according to the information of the batteries to obtain the descending order result, and alternately charges at least two batteries according to the descending order result from high to low according to the charge parameters. That is, the first battery is the battery with the highest charge parameter, and the battery with the highest charge parameter is charged first, for example, the battery with the highest charge parameter is charged, that is, the battery with the highest charge parameter is preferentially charged, so that the user can obtain a fully charged battery for emergency use at the fastest speed.
In this embodiment, the charging switches are controlled to be turned on in turn, only one battery is charged at a time, and compared with parallel charging, the alternate charging can be used for charging one battery in priority so as to be used urgently, and a user can acquire a fully charged battery in a short time.
In some embodiments, the battery information further includes a battery temperature and a battery status. Wherein the battery temperature is the temperature of the battery. The battery state is the state that the battery is in, the battery state includes normal state or abnormal state, and the abnormal state includes short circuit, excessive pressure or undervoltage etc..
The controller 14 is further configured to determine whether the battery temperatures of the at least two batteries are within a preset temperature range, and determine whether the battery states of the at least two batteries are normal, and if the battery temperatures are within the preset temperature range and the battery states are normal, the controller 14 charges the at least two batteries. It can be understood that the preset temperature range is a temperature range in which the battery can normally operate, and may be set according to the type of the battery. If the battery includes a lithium ion type cell, the preset temperature range may be set to 0-45 ℃. When the battery temperature of one of the batteries is not in the preset temperature range or the battery state of one of the batteries is abnormal, the controller acquires the battery information of at least two batteries again, and the subsequent control operation is not carried out until the battery temperatures and the battery states of all the batteries meet the requirements, so that the safety performance of the charger is ensured.
In some embodiments, the controller 14 updates the battery information of at least two batteries when acquiring the battery information of a new battery, that is, when the battery connected to the charger is increased, the battery information of the newly increased battery is taken into account, and alternate charging or parallel charging is performed again according to the battery information of all the batteries and the charging mode.
In some embodiments, the charge parameters include charge information, and when the charge of one of the batteries is full, the controller controls the corresponding charging switch to be turned off to stop the charging power supply from charging the fully charged battery, so as to effectively prevent overcharge, protect the battery to a certain extent, and avoid the loss of the battery due to overcharge.
As shown in fig. 3, in some embodiments, a voltage step-down stabilizing circuit 16 is further connected between the controller 14 and the charging power supply 11, so that when the charging power supply supplies power to the controller, the voltage input to the controller is stabilized.
In summary, the charger 10 includes a charging power source 11, at least two charging interfaces 12, an input module 13, and a controller 14. Wherein, the at least two charging interfaces 12 are respectively connected with the charging power supply 11. The charging interface 12 is used to connect the batteries 20 such that the charging power supply 11 and the corresponding connected batteries 20 form a charging circuit via each charging interface 12. The controller 14 is respectively connected with the charging power supply 11 and the input module 13, and the controller 14 is also in communication connection with at least two batteries 20, so that the controller 14 can acquire the battery information of each battery 20 and acquire the charging mode input by a user, and if the charging mode is a parallel charging mode, the charging power supply 11 is controlled to charge at least two batteries in parallel; and if the charging mode is a rotation charging mode, controlling the charging power supply 11 to charge at least two batteries in rotation. Therefore, the user can obtain a fully charged battery in a short time by selecting the alternate charging mode, and the total charging time of the batteries can be effectively shortened by selecting the parallel charging mode. Through two kinds of mode switching of charging, can satisfy the diversified demands of user to charging, intelligence is convenient moreover.
Referring to fig. 4, a third embodiment of the present application provides a charging method, which can be applied to any suitable charging device, for example, the charger according to any of the above embodiments, as shown in fig. 4, the charging method includes:
s21: and acquiring a charging mode, wherein the charging mode comprises a rotation charging mode or a parallel charging mode.
S22: and if the charging mode is a parallel charging mode, performing parallel charging on at least two batteries.
S23: and if the charging mode is a rotation charging mode, performing rotation charging on the at least two batteries.
The charging mode comprises a rotation charging mode or a parallel charging mode. The alternate charging mode is to sequentially fully charge a plurality of batteries, for example, after the battery a is fully charged, the battery B is fully charged, then the battery C is fully charged, and so on until the last battery is fully charged. The parallel charging mode refers to charging at least two batteries of the plurality of batteries simultaneously, for example, charging battery a and battery B of battery a, battery B, and battery C simultaneously, or charging battery a, battery B, and battery C simultaneously.
Based on the characteristics of the alternate constant voltage charging and the parallel constant current charging, it can be known that, during the parallel charging, the plurality of batteries are charged with the constant current together, and the plurality of batteries can be charged with the maximum power, so that the total charging time required for fully charging the plurality of batteries can be shortened. In alternate charging, one battery is charged at a constant voltage at a time, and the charging power is gradually reduced in the constant voltage stage, resulting in a relatively long total charging time required to alternately fully charge a plurality of batteries. However, alternate charging may be preferred to charge one of the batteries, and the user may be able to preferentially obtain a fully charged battery for emergency use. For example, with respect to the above batteries A, B and C, the total charging time required in the parallel charging mode is shorter than the total charging time required in the rotation charging mode, but it may be preferable to acquire one of the fully charged batteries in the rotation charging mode, for example, to preferentially acquire the fully charged battery B.
It will be appreciated that the charging mode is input into the charger by the user on his or her own request, for example, by pressing a button. If the charging mode is a parallel charging mode, performing parallel charging on at least two batteries according to the information of each battery; and if the charging mode is a rotation charging mode, performing rotation charging on at least two batteries according to the information of each battery. For example, when the user inputs the parallel charging mode, a charging sequence is generated according to the respective battery information of the battery a, the battery B, and the battery C, and the battery A, B, C is charged in sequence according to the charging sequence, for example, the battery a is charged first, then the battery C is charged, and finally the battery B is charged, or the battery C is charged first, then the battery B is charged, and finally the battery a is charged. When the user inputs the parallel charging mode, at least two of the batteries a, B and C are selected to be charged simultaneously according to their respective battery information, for example, the battery a and the battery C are charged simultaneously first, and when the charging reaches a certain degree, the battery B is added to charge the battery A, B, C simultaneously in parallel, or the battery a, the battery B and the battery C are charged simultaneously. It should be noted that the examples are merely illustrative and do not set any limit to the specific form of the charging of the wheel current and the parallel charging.
In this embodiment, by acquiring a charging mode input by a user, if the charging mode is a parallel charging mode, parallel charging is performed on at least two batteries; and if the charging mode is a rotation charging mode, performing rotation charging on the at least two batteries. Based on the characteristics of alternate constant voltage charging and parallel constant current charging, the alternate charging mode is selected, so that a user can obtain a fully charged battery in a short time, and the parallel charging mode is selected, so that the total charging time of a plurality of batteries can be effectively shortened. Through two kinds of mode switching of charging, can satisfy the diversified demands of user to charging, intelligence is convenient moreover.
In some embodiments, referring to fig. 5, the step S22 specifically includes:
s221: the method comprises the steps of obtaining battery information of at least two batteries, wherein the battery information comprises charge parameters.
S222: and acquiring a first battery with the lowest charge parameter according to the battery information, and charging the first battery.
S223: and acquiring a second battery with the lowest charge parameter according to the information of each battery, if the charge parameter of the second battery and the charge parameter of the first battery meet a preset condition, charging the second battery, and returning to the step S221 until each battery is charged.
The at least two batteries are batteries to be charged connected with the charging interface. It is understood that the battery refers to a lithium battery (lithium ion or polymer battery). Based on that a plurality of batteries are used for supplying power to the same electric equipment (such as an unmanned aerial vehicle), the electrical parameters of the plurality of batteries are approximately the same, for example, the electrical parameters such as the highest charging voltage, the battery capacity, the charging current and the like are basically consistent. When the at least two batteries are respectively connected with the corresponding charging interfaces, the at least two batteries are connected in parallel.
The battery information comprises a charge parameter, and the charge parameter is an electrical parameter of the battery measured according to parameters such as battery voltage, internal resistance and the like. It is understood that the charge parameter may be a battery charge or a battery open circuit voltage, etc.
And acquiring the first battery with the lowest charge parameter from the battery information, and charging the first battery. And then, acquiring a second battery with the second lowest charge parameter from the information of each battery, and charging the second battery if the charge parameters of the second battery and the first battery meet preset conditions. With the charging, the charge parameters of the first battery and the second battery are changed continuously, and the battery information of each battery is obtained in real time, that is, the step S221 is executed again to obtain a new first battery and a new second battery, and the new first battery and the new second battery are charged until each battery is charged.
The preset condition is used for limiting the difference between the charge parameter of the second battery and the charge parameter of the first battery, so that the situation that the batteries are charged mutually due to overlarge charge parameter difference between the first battery and the second battery is avoided, namely the second battery with a large charge parameter charges the first battery with a low charge parameter. It is understood that the predetermined condition may be that the charge parameter of the first battery is a predetermined percentage of the charge parameter of the second battery, for example, the charge parameter of the first battery is 70% of the charge parameter of the second battery, so that the difference between the charge parameter of the second battery and the charge parameter of the first battery may be limited.
In some embodiments, the preset condition is that a difference between the charge parameter of the second battery and the charge parameter of the first battery is less than a preset threshold. That is, when the difference between the charge parameter of the second battery and the charge parameter of the first battery is smaller than the preset threshold, the charging switch corresponding to the second battery is controlled to be closed, so that the charging power supply charges the second battery.
Here, the charge parameter is taken as the charge amount for example, when the battery A, B, C, D needs to be charged, if the charge amount of the battery a is 3, the charge amount of the battery B is 3.5, the charge amount of the battery C is 5.2, and the charge amount of the battery D is 7, and the preset threshold value is 1, so as to acquire the battery a as the first battery, acquire the battery B as the second battery, and charge the battery a and the battery B, it can be understood that the charging speeds of the constant current charging are the same. When the electric quantity of the first battery B exceeds 5.2, at the moment, the second battery with the lowest electric quantity is the battery C, and the first battery with the lowest electric quantity is also the battery A; if the difference between the electric quantities of the battery C and the battery a is smaller than 1, the battery C (new second battery) is charged. By analogy, when the electric quantity of the battery C is charged to 6, at this time, the second battery with the next lowest electric quantity is the battery D, the first battery with the lowest electric quantity is also the battery a, and if the electric quantity difference between the battery D and the battery a is smaller than 1 at this time, the battery D (new second battery) is charged.
In this embodiment, by setting the preset condition, the first battery and the second battery meeting the preset condition are charged in parallel, the first battery and the second battery are continuously updated, the batteries are charged gradually from low to high from the battery with the lowest charge parameter until all the batteries are charged, so that the parallel charging of the batteries is realized.
In some embodiments, referring to fig. 6, step S23 specifically includes:
s231: acquiring battery information of the at least two batteries, wherein the battery information comprises charge parameters;
s232: and sequencing the at least two batteries according to the battery information to obtain a sequencing result.
S233: and controlling the at least two batteries to be charged in sequence according to the sequencing result until all the batteries are charged.
It is understood that the cell information includes charge parameters, which are electrical parameters of the battery measured according to the battery voltage, internal resistance, and the like. It is understood that the charge parameter may be a battery charge or a battery open circuit voltage, etc.
According to the information of each battery, sequencing at least two batteries to obtain a sequencing result, then, according to the sequencing result, firstly, charging a first battery in the sequencing result, namely, only charging the first battery, when the first battery is fully charged, then charging a second battery in the sequencing result, and so on until all batteries are fully charged.
In this embodiment, a plurality of batteries are charged in turn, only one battery is charged at a time, and compared with parallel charging, alternate charging can preferentially charge one battery so as to be used urgently, so that a user can acquire a fully charged battery in a short time.
In some embodiments, referring to fig. 7, step S232 specifically includes:
s2321: and sequencing the at least two batteries from high to low according to the charge parameters according to the information of the batteries so as to obtain a descending sequencing result.
Step S233 specifically includes:
s2331: and alternately charging the at least two batteries from high to low according to the charge parameters until all the batteries are charged according to the descending order arrangement result.
And sequencing all the batteries from high to low according to the charge parameters according to the information of each battery so as to obtain a descending sequencing result. It can be understood that, in the descending order, the first battery is the battery with the highest charge parameter, and the battery with the highest charge parameter is charged first, for example, the battery with the highest charge parameter is charged, that is, the battery with the highest charge parameter is charged preferentially, and then the batteries are charged alternately according to the charge parameters from high to low, so that the user can obtain a fully charged battery for emergency use at the fastest speed.
In some embodiments, when the battery information of a new battery is acquired, the battery information of at least two batteries is updated, that is, when the battery connected with the charger is increased, the battery information of the newly increased battery is taken into account, and alternate charging or parallel charging is performed again according to the battery information of all the batteries and the charging mode.
In this embodiment, the battery information of each battery is obtained in real time to perform the subsequent steps, that is, the method of the present application is performed in real time.
In some embodiments, the battery information includes a battery temperature and a battery status, wherein the battery temperature is a temperature of the battery. The battery state is the state that the battery is in, the battery state includes normal state or abnormal state, and the abnormal state includes short circuit, excessive pressure or undervoltage etc..
Referring to fig. 8, before charging at least two batteries, the method further includes:
s24: judging whether the battery temperatures of the at least two batteries are within a preset temperature range or not, and judging whether the battery states of the at least two batteries are normal or not;
s25: and if the temperature of each battery is within the preset temperature range and the state of each battery is normal, charging the at least two batteries.
The preset temperature range is the temperature range within which the battery can normally work, and can be set according to the type of the battery. If the battery includes a lithium ion type cell, the preset temperature range may be set to 0-45 ℃. When the battery temperature of one of the batteries is not in the preset temperature range or the battery state of one of the batteries is abnormal, the battery information of at least two batteries is acquired again, and the subsequent charging step is not carried out until the battery temperatures and the battery states of all the batteries meet the requirements, so that the charging safety is ensured. It is to be understood that the charging includes a rotation charging or a parallel charging.
In some embodiments, the charge parameter includes charge information, and referring to fig. 9, the method S20 further includes:
s26: and stopping charging the fully charged battery when the electric quantity of one of the at least two batteries is fully charged.
In both the alternate charging and the parallel charging, when the electric quantity of one of the batteries is full, the fully charged battery is stopped to be charged, so that the overcharge can be effectively prevented, the battery can be protected to a certain extent, and the loss of the battery caused by the overcharge can be avoided.
In summary, according to the charging method provided by the application, by obtaining the charging mode input by the user, if the charging mode is the parallel charging mode, the at least two batteries are charged in parallel; and if the charging mode is a rotation charging mode, performing rotation charging on at least two batteries. Based on the characteristics of alternate constant voltage charging and parallel constant current charging, the alternate charging mode is selected, so that a user can obtain a fully charged battery in a short time, and the parallel charging mode is selected, so that the total charging time of a plurality of batteries can be effectively shortened. Through two kinds of mode switching of charging, can satisfy the diversified demands of user to charging, intelligence is convenient moreover.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the processor is caused to execute the charging method in any one of the above embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of charging, comprising:
acquiring a charging mode, wherein the charging mode comprises a rotation charging mode or a parallel charging mode;
if the charging mode is a parallel charging mode, performing parallel charging on at least two batteries;
and if the charging mode is a rotation charging mode, performing rotation charging on the at least two batteries.
2. The charging method according to claim 1, wherein the charging at least two batteries in parallel comprises:
acquiring battery information of the at least two batteries, wherein the battery information comprises charge parameters;
acquiring a first battery with the lowest charge parameter according to the battery information, and charging the first battery;
and acquiring a second battery with the lowest charge parameter according to the information of each battery, if the charge parameter of the second battery and the charge parameter of the first battery meet a preset condition, charging the second battery, and returning to the step of acquiring the battery information of the at least two batteries until each battery is charged.
3. The charging method according to claim 2, wherein the preset condition is that a difference between the charge parameter of the second battery and the charge parameter of the first battery is smaller than a preset threshold.
4. The charging method according to claim 1, wherein said alternately charging the at least two batteries comprises:
acquiring battery information of the at least two batteries, wherein the battery information comprises charge parameters;
sorting the at least two batteries according to the information of the batteries to obtain a sorting result;
and controlling the at least two batteries to be charged in sequence according to the sequencing result until all the batteries are charged.
5. The charging method according to claim 4, wherein the sorting the at least two batteries according to the information of the batteries to obtain a sorting result comprises:
sequencing the at least two batteries from high to low according to the charge parameters according to the information of the batteries so as to obtain a descending sequencing result;
controlling the at least two batteries to be charged in sequence according to the sequencing result until all the batteries are charged, and the method comprises the following steps:
and alternately charging the at least two batteries from high to low according to the charge parameters until all the batteries are charged according to the descending order arrangement result.
6. The charging method according to any one of claims 2 to 5, wherein the battery information includes a battery temperature and a battery status, and before charging the at least two batteries, the method further comprises:
judging whether the battery temperatures of the at least two batteries are within a preset temperature range or not, and judging whether the battery states of the at least two batteries are normal or not;
and if the temperature of each battery is within the preset temperature range and the state of each battery is normal, charging the at least two batteries.
7. The charging method of claim 6, wherein the charge parameter comprises charge information, the method further comprising:
and stopping charging the fully charged battery when the electric quantity of one of the at least two batteries is fully charged.
8. A charger, comprising:
a charging power supply is arranged on the base station,
the charging interfaces are respectively connected with the charging power supply and are used for connecting batteries, so that the charging power supply and the correspondingly connected batteries form a charging loop through each charging interface;
an input module for inputting a charging mode;
a controller connected to the input module and the charging power supply, respectively, the controller being connected in communication with at least two batteries such that the controller is operable to perform the method of any one of claims 1-7.
9. An electrical charging system, comprising: at least two batteries and a charger as claimed in claim 8, a said battery being connected to a charging interface of said charger.
10. A non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by a processor, cause the processor to perform the method of any one of claims 1-7.
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| CN202110129336.8A CN112786983A (en) | 2021-01-29 | 2021-01-29 | Charging method, charger and charging system |
| PCT/CN2022/072785 WO2022161228A1 (en) | 2021-01-29 | 2022-01-19 | Charging method, charger, and charging system |
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| CN114024345A (en) * | 2021-07-30 | 2022-02-08 | 张成君 | Treasured charges with show function |
| WO2022161228A1 (en) * | 2021-01-29 | 2022-08-04 | 深圳市道通智能航空技术股份有限公司 | Charging method, charger, and charging system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116780691A (en) * | 2023-06-06 | 2023-09-19 | 东莞市腾威动力新能源有限公司 | Charging control method, device, equipment and storage medium of energy storage power supply |
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| WO2022161228A1 (en) | 2022-08-04 |
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Application publication date: 20210511 |