CN110212604B - Charging method, charger and storage medium - Google Patents
Charging method, charger and storage medium Download PDFInfo
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- CN110212604B CN110212604B CN201910463516.2A CN201910463516A CN110212604B CN 110212604 B CN110212604 B CN 110212604B CN 201910463516 A CN201910463516 A CN 201910463516A CN 110212604 B CN110212604 B CN 110212604B
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- 238000007600 charging Methods 0.000 title claims abstract description 554
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000003993 interaction Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 13
- 230000006870 function Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000010277 constant-current charging Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010281 constant-current constant-voltage charging Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000010278 pulse charging Methods 0.000 description 1
- 230000002829 reductive effect 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
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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
- H01M10/446—Initial charging measures
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
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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
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a charging method, a charger and a storage medium. The charging method comprises the following steps: setting charging rules meeting different charging modes according to the battery capacity so as to control and output preset charging current and/or charging voltage; acquiring parameters and a current charging mode of a charged battery, and determining current output parameters according to the charging rule; and charging the charged battery according to the current output parameter until the charging is completed. The charging method and the charger provided by the invention have the advantage of being capable of charging different batteries in an optimal charging state.
Description
Technical Field
The present invention relates to the field of battery charging, and more particularly, to a charging method, a charger, and a storage medium.
Background
In the lithium battery charger in the prior art, the constant voltage charging voltage of the charger is required by the lithium battery, and the constant current is required to be accurate, because the charging voltages required by the lithium batteries with different materials are different, the lithium batteries with different capacities have different required constant current charging currents, otherwise, the charging effect on the battery is poor, and even the battery can be damaged; resulting in a lithium battery to be fitted with a dedicated lithium battery charger.
Taking a lithium battery as an example, the charge termination voltage of most lithium ion batteries (ternary lithium batteries) is 4.2v±1%, and the charge termination voltage of lithium iron phosphate is 3.65v±1%, so that only one type of battery can be charged with such a voltage.
When the original charger is damaged, a new original charger is replaced, and other chargers are inconvenient to replace for charging, so that users are inconvenient to use. A situation often occurs in which a user has a plurality of lithium battery products and a plurality of chargers, because the lithium battery chargers in the prior art have poor commonality, and cannot meet the optimal charging state of different lithium batteries even if the lithium battery chargers can share the lithium battery, so that resources are seriously wasted.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a charging method, a charger and a storage medium, which have the advantage of being capable of charging different batteries in an optimal charging state.
In a first aspect, a charging method of the present specification includes the steps of:
setting charging rules meeting different charging modes according to the battery capacity so as to control and output preset charging current and/or charging voltage;
acquiring parameters and a current charging mode of a charged battery, and determining current output parameters according to the charging rule;
and charging the charged battery according to the current output parameter until the charging is completed.
According to the charging method, the corresponding charging voltage or charging current is obtained through formulating the charging rules, and the corresponding charging rules are matched after the obtained parameters of the corresponding battery are combined with the current charging mode, so that the corresponding output parameters including the output voltage and the output current are obtained. The charging method can charge batteries with different material types, different voltages and different serial battery sections, and can charge batteries with different currents and different battery capacities; and the charged battery is charged in the optimal charging parameter state as far as possible by matching the charging rule with the parameter set value of the rechargeable battery and the set value of the charging mode, so that the service life of the battery is prolonged.
Further, the charging modes include a fast charging mode, a standard charging mode and a slow charging mode;
setting the charging rate of the quick charging mode to be 1C-1.5C;
setting the charging rate of the standard charging mode to be 0.5C-1C;
and setting the charging rate of the slow charging mode to be 0.25-0.5 ℃.
Different charging rates are corresponding to different charging modes, so that the user can select a large range, multiple options of the user are provided for selection, and the flexibility of the charging method is improved. Each charging mode has a corresponding charging rate range, and the charging mode is clear.
Further, the charging rule includes: and determining each preset charging rate corresponding to the battery according to a certain battery capacity and each preset charging current, and if three preset charging rates are respectively matched with the charging modes, representing each charging mode of the battery by the preset charging rates. And obtaining a corresponding charging rate through matching and calculation of the battery capacity and the charging current, wherein the charging rate is a preset charging rate, and if three preset charging rates correspond to preset charging modes, the preset charging rate can represent each charging mode of the battery as the battery capacity of the battery is established, and different charging modes of the battery correspond to different charging currents. The association and matching mode can better define different charging modes with different battery capacities, output corresponding charging currents to meet different requirements, and charge the battery only when the corresponding charging modes are met, and charge the battery under other conditions without charging or reducing the charging current to protect the battery and the circuit.
Further, each preset charging current is set as a plurality of corresponding output files outputting different current values. Each preset charging current corresponds to an output file of a current value, so that a plurality of output files outputting different current values are realized, and different output circuits can be provided for selection.
Further, the method for matching the preset charging rate with the charging mode comprises the following steps: and if the preset charging rate is within the charging rate range of any charging mode, the preset charging rate is considered to be matched with the charging mode. When the preset charging rate is matched with the charging rate of the charging mode, the preset charging rate accords with the charging rule, and the battery can be charged according to the preset charging rate.
Further, the obtaining the parameter and the current charging mode of the rechargeable battery, and determining the current output parameter according to the charging rule includes:
acquiring at least one of a voltage set value, a battery model value and a battery number set value of the charged battery to determine the current output voltage;
and obtaining a battery capacity set value and a specified current charging mode of the charged battery, and determining a current output current or a current charging rate according to the charging rule.
By setting or adjusting the corresponding parameters, the corresponding output voltage or output current is output, so that the charging of batteries with different types, different materials and different voltages can be further satisfied, and the charging of batteries with different currents or different battery capacities can also be satisfied.
Further, before the charged device is charged at the specified charging rate, the method further comprises the steps of:
if the output current value in the current output parameter exceeds the load upper limit value of the current charger, charging with the load lower limit value of the charger, and outputting a warning signal;
and if the charging rate in the current output parameter exceeds the upper limit value of the safe charging rate range, stopping charging and outputting a warning signal. When the output current value exceeds the load, the charging rate is not out of range, the charging current can be adjusted, a warning signal is sent out to prompt a user, and the battery is charged according to the lower limit of the load, so that the charging safety of the battery is ensured; when the charging rate exceeds the safe charging rate range, if the charging is continued, the device and the battery are subjected to potential safety hazards, and the charging is terminated.
Further, the completing the charging includes: and determining the cut-off point for completing charging according to at least one parameter of the charging electric quantity, the charging time and the current output parameter, the current charging voltage or the battery temperature. And judging at least one parameter to obtain whether the charging state of the battery is full or not so as to obtain the cut-off point for completing charging.
In a second aspect, a charger of the present specification comprises:
the control circuit is used for making charging rules meeting different charging modes according to the battery capacity so as to control and output preset charging current and/or charging voltage;
displaying a control panel to obtain parameters and a current charging mode of the charged battery;
the processor is used for determining the current output parameters according to the charging rules;
the charging circuit charges the charged battery according to the current output parameter until the charging is completed;
the processor is in signal interaction with the display control panel, the output end of the control circuit is electrically connected with the receiving end of the processor, and the input end of the charging circuit is electrically connected with the output end of the control circuit.
The charger of the invention not only can charge batteries with different charging voltages, but also can charge batteries with different charging currents, and can charge the charged batteries according to the optimal charging state, thereby improving the application range of the charger and the service life of the batteries.
Further, the charging system further comprises a memory for storing corresponding preset data of the charging modes, wherein the charging modes comprise a fast charging mode, a standard charging mode and a slow charging mode;
setting the charging rate of the quick charging mode to be 1C-1.5C;
setting the charging rate of the standard charging mode to be 0.5C-1C;
and setting the charging rate of the slow charging mode to be 0.25-0.5 ℃.
In a third aspect, a computer-readable storage medium of the present specification, the computer-readable instructions, when executed by one or more processors, cause the one or more processors to perform the steps of the charging method as described in any of the above aspects.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present description will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of steps of one embodiment of a charging method of the present disclosure;
FIG. 2 is a schematic diagram of the structural relationship of one embodiment of the charger of the present disclosure;
fig. 3 is a schematic circuit diagram of the charger of the present specification.
Detailed Description
The present invention is described in detail below, examples of embodiments of the invention are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. Further, if detailed description of the known technology is not necessary for the illustrated features of the present invention, it will be omitted. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The following describes the technical scheme of the present invention and how the technical scheme of the present invention solves the above technical problems in detail with specific embodiments.
According to the method, the charging voltage and the charging current under the load charging rule are obtained through setting relevant parameters of the charged battery and combining the set charging rule, so that the charged battery is charged. And further improves the adaptive application range of the charger and meets the charging requirements of different batteries. The following describes specific embodiments of the present specification.
Referring to fig. 1, a flow chart of a charging method of the present specification is shown. In a first aspect, a charging method is provided, including the steps of:
s11, setting charging rules meeting different charging modes according to the battery capacity so as to control and output preset charging current and/or charging voltage. And the charging rule obtains a gear judgment corresponding to whether to charge or not according to the battery capacity, the charging rate, the output current (or charging current) and the charging mode. By setting the charging rule, the charging of different batteries can be provided, and the optimal charging state is matched, so that the charging is in the optimal state.
In order to define the charging rules and to obtain the corresponding charging rates, in a further preferred embodiment, the charging rules comprise: and determining each preset charging rate corresponding to the battery according to a certain battery capacity and each preset charging current, and if three preset charging rates are respectively matched with the charging modes, representing each charging mode of the battery by the preset charging rates.
Charge rate = charge current/battery capacity. In one embodiment, the battery capacity of the charged battery is 5Ah, and if the charging current is set to 1A, the corresponding charging rate is 0.2, and this charging rate does not correspond to the range of charging rates in any of the charging modes, it cannot be used to characterize any of the charging modes of the battery capacity. In one embodiment, the battery capacity of the charged battery is 5Ah, and if the charging current is set to 2A, the corresponding charging rate is 0.4, which corresponds to the charging rate range of the slow charging mode, and at this time, the battery capacity of 5Ah, the charging current of 2A, and the slow charging mode can be used to characterize a charging mode of the battery. Thus, battery capacity 5Ah, charging current 4A, standard charging mode characterizes another charging mode of the battery; battery capacity 5Ah, charge current 6A, fast charge characterizes yet another charge mode of the battery. Thereby forming three charging modes corresponding to the battery (battery capacity of 5 Ah).
In order to provide user settings and alternatives such that the output current is represented in steps, in a further preferred embodiment each of said preset charging currents is set to a corresponding plurality of output steps outputting different current values.
In order to determine the matching of the charging mode and the charging rate, so as to ensure that the charging of the charged battery meets the charging rule, in a preferred embodiment, the method for matching the preset charging rate with the charging mode includes: and if the preset charging rate is within the charging rate range of any charging mode, the preset charging rate is considered to be matched with the charging mode.
Specifically, in one embodiment, if the slow charge mode is set, the corresponding charge rate is a preset value, i.e., 0.25C-0.5C. If the charging rate is obtained by inputting the battery capacity and the charging current, for example, the battery capacity is 5Ah, the charging current is 2A, and the obtained charging rate is 0.4, and the charging rate accords with the charging rate range of the battery capacity slow charging, the charging rate is considered to be matched with the corresponding slow charging mode. For example, if the battery capacity is 5Ah and the charging current is 1A, the obtained charging rate is 0.2, and does not conform to the range of any charging rate, then the charging rate is not matched with any charging mode.
S12, acquiring parameters of the charged battery and a current charging mode, and determining current output parameters according to the charging rule. And the obtained parameters are combined with the charging mode and are matched with the charging rule, so that whether to charge is judged, and whether to charge and whether to optimally charge is determined.
In order to meet the charging requirements of different batteries, a corresponding charging voltage or charging current is obtained through a certain parameter setting, and in a preferred embodiment, the obtaining the parameters and the current charging mode of the charged battery, and determining the current output parameters according to the charging rule includes:
acquiring at least one of a voltage set value, a battery model value and a battery number set value of the charged battery to determine the current output voltage;
and obtaining a battery capacity set value and a specified current charging mode of the charged battery, and determining a current output current or a current charging rate according to the charging rule.
Through the adjustment of the set value of the voltage or the change of the set value of the current, the charger can charge various batteries, and has strong adaptability and wide application range. Such as two batteries of the same voltage, but with different battery capacities, the requirements can be met by changing the battery capacity set point; for example, two batteries with the same battery capacity and the same charging mode, but different battery types can be realized by adjusting the set value of the battery model.
And S13, charging the charged battery according to the current output parameter until the charging is completed.
In order to accurately determine the completion of charging, in a preferred embodiment, the completion of charging includes: and determining the cut-off point for completing charging according to at least one parameter of the charging electric quantity, the charging time and the current output parameter, the current charging voltage or the battery temperature. In one embodiment, by controlling the charging time, when the charging time reaches a threshold value or the charging time meets the requirement according to the set value of the battery parameter, the charging is judged to be completed at the moment, and the charging circuit is disconnected. If the battery capacity is 5Ah, a slow charging mode is selected, and the corresponding charging current is 2A, and at the moment, the charging time can be close to full charge, the required time length for full charge is 5/2=2.5h, therefore, the system can know that the charging time is 2.5h according to the set battery capacity and charging current of the battery, and when the charging time reaches the threshold value of 2.5h, the system judges that the charging is completed, and the charging circuit is disconnected. In another embodiment, when the preset charging voltage is 4.2V and the corresponding threshold is 4.35V, then when the actual charging voltage reaches 4.35V, it is indicated that the charging is completed and the charging circuit is disconnected. In order to define the charge rate corresponding to the charge mode, in a preferred embodiment, the charge mode includes a fast charge mode, a standard charge mode, and a slow charge mode
Examples of charging rules for the present charging method are the following table:
in combination with the table contents of the above examples, in one embodiment, if the battery capacity is 5Ah and the charging current is 2A, the charging rate is 2/5=0.4, and the charging is in the corresponding slow charging mode, and in theory, 5/2=2.5 hours is required for full charge in the charging mode. The smaller the charging current is, the longer the charging time is, the battery can be charged to more than 98% of the battery capacity; the charging current is too large, and the charging time is short, but the charging current can only reach more than 80% of the actual battery capacity and cannot be fully filled. In another embodiment, if the battery capacity is 5Ah and the set charging mode is the fast charging mode, the corresponding charging current is 5A-7.5A according to the charging rule, the charger charges the battery with the charging current of 6A as much as possible, and the time required for actually completing charging can be understood as 5×80%/6=0.67 h.
In the actual charging state, in order to achieve better charging efficiency and better charging performance, the charge rate is compromised, namely, the fast charging mode is charged at 1.25C, the standard charging mode is charged at 0.75C, and the slow charging mode is charged at 0.35C. Therefore, the selection requirements of different charging modes can be ensured, the charging can be ensured in a state as close to the standard charging state as possible, the service life of the battery is prolonged, and the service efficiency of the battery is fully protected.
And obtaining a corresponding charging current value according to the set value of the battery capacity and the set value of the charging current, and matching the charging rate range in the corresponding charging mode, so as to automatically judge the charging gear to determine whether charging can be performed. Or, according to the set value of the battery capacity, the selection of the charging mode and the setting of the charging current value, the charging rule is matched, so that the charging gear is automatically determined to determine whether the charging can be performed.
In order to secure the charging element, the charger and the charged battery, in a preferred embodiment, before the charging of the charged device at the specified charging rate, the method further comprises the steps of:
if the output current value in the current output parameter exceeds the load upper limit value of the current charger, charging with the load lower limit value of the charger, and outputting a warning signal;
and if the charging rate in the current output parameter exceeds the upper limit value of the safe charging rate range, stopping charging and outputting a warning signal.
In one embodiment, the upper load limit of the charger is determined by its corresponding charging rules and its own performance. For example, the maximum output current of the charger is 20A, the charging rate of the fast charging mode is 1-1.5C, and then the battery with the battery capacity of 13.3-20Ah can be charged in the fast charging mode; the charging rate of the standard charging mode is 0.5-1C, so that the battery with the battery capacity of 20-40Ah can be charged in the standard charging mode; the charging rate of the slow charging mode is 0.25-0.5C, so that the battery with the capacity of 40-80Ah can be charged in the slow charging mode. If the user needs to charge the battery with the battery capacity of 50Ah and sets a quick charging mode, the corresponding required charging current is 50-75A, and the maximum output current of the charger is exceeded by 20A, namely the load upper limit value of the charger is exceeded. At this time, the charger automatically adjusts the charging mode to a slow charging mode, and charges with a lower load limit value of the charger, wherein the lower load limit value is the lower limit value of the slow charging mode, namely 0.25C, and outputs an alarm signal.
In one embodiment, the maximum output current of the charger is 20A, and the upper limit of the safe charge rate range is the upper limit of the charge mode, i.e., the upper limit of the fast charge mode is 1.5C. If the battery capacity of the charged battery is 10Ah, the user inputs the battery capacity, the charging rate at the moment is 2C, the charging rate exceeds the charging rate of quick charging, the charging cannot be completed even if the charging is performed quickly at the moment, the charging rule is not met, the charging is stopped, and a warning signal is output.
In a further embodiment, the output alarm signal may be an alert tone signal, a light signal, or a mechanical vibration signal, etc., which alerts the user by sounding, lighting, or mechanical means. In order to provide more functional options, and to protect the safety of the circuit and the charged battery, in a preferred embodiment, the setting of the charge protection mode comprises: voltage overcharge protection, high and low temperature protection of battery environment temperature, power failure after full charge of the battery, no maintenance of charging protection, reverse connection protection of the battery, and no ignition protection after output positive and negative electrode short circuit. In a preferred embodiment, when the battery is fully charged, if the charging is continued, the internal pressure of the battery is raised, which causes problems such as deformation and leakage of the battery, and thus when the voltage of the charged battery exceeds a threshold value, the charging circuit is opened to protect the performance and safety of the battery.
In order to provide for the selection of more charging functions, in a preferred embodiment, further comprises: constant current charging, constant voltage charging, and pulsed trickle charging activate the battery.
In the quick charging function, pulse charging is adopted during constant current charging, so that the self heating of the battery can be reduced, and the safety of a circuit and a charged battery is protected.
Referring to fig. 2, a schematic structural relationship of the charger of the present specification is shown. In a second aspect, a charger is provided, comprising:
the control circuit 21 is used for setting charging rules meeting different charging modes according to the battery capacity so as to control and output preset charging current and/or charging voltage.
Wherein the charging rule includes: and determining each preset charging rate corresponding to the battery according to a certain battery capacity and each preset charging current, and if three preset charging rates are respectively matched with the charging modes, representing each charging mode of the battery by the preset charging rates. By selecting the charging mode, various output currents can be provided, the capacity of the same battery is set under different charging currents, and the charging voltage is also set, but the charging duration and the saturation degree for completing charging are different. For example, in the fast charge mode, the saturation at the time of completing the charge is 80%, and in the slow charge mode, the saturation at the time of completing the charge is 95%; and from the time length of charging completion, the quick charge only needs 2 hours, and the slow charge needs 4 hours, and the quick charge is obviously less than the slow charge.
In a further embodiment, each of the preset charging currents is set as a corresponding plurality of output files outputting different current values.
In a further embodiment, the method for matching the preset charging rate with the charging mode includes: and if the preset charging rate is within the charging rate range of any charging mode, the preset charging rate is considered to be matched with the charging mode.
The control panel 22 is displayed to obtain parameters of the charged battery and the current charging mode.
Specifically, the acquiring the parameters and the current charging mode of the rechargeable battery includes: and obtaining at least one of a voltage set value, a battery model value and a battery number set value of the charged battery. And acquiring a battery capacity set value and a specified current charging mode of the charged battery.
A processor 23 to determine the current output parameters in accordance with the charging rules.
Specifically, determining the current output parameter according to the charging rule includes: the current output voltage is determined. The current output voltage is determined by the combination of the display control panel and the processor. The user can set different voltage values through the voltage setting, so that the setting of batteries with different voltages is met; the battery model can be selected by a user through the setting of the battery model, so that the material type of the battery can be selected, and the battery standard charging voltages of different materials are different, so that the battery model is required to be set; the number of battery sections is different, the required charging voltage is also different, and the required voltage can be accurately set through the setting of the number of battery sections.
And determining the current output current or the current charging rate according to the charging rule. The output current or the present charge rate is determined by a combination of the display control panel and the processor. Because of different battery capacities, the battery capacities need to be set, and corresponding charging modes are selected to accurately judge the current intensity to be output, so that the current intensity is closer to the required standard charging current of batteries with different battery capacities.
And a charging circuit 24 for charging the charged battery with the current output parameter until the charging is completed.
Wherein the completing the charging includes: and determining the cut-off point for completing charging according to at least one parameter of the charging electric quantity, the charging time and the current output parameter, the current charging voltage or the battery temperature.
The processor 23 is in signal interaction with the display control panel 22, the output end of the control circuit 21 is electrically connected with the receiving end of the processor 23, and the input end of the charging circuit 24 is electrically connected with the output end of the control circuit 21.
The charging system further comprises a memory for storing corresponding preset data of the charging modes, wherein the charging modes comprise a fast charging mode, a standard charging mode and a slow charging mode;
setting the charging rate of the quick charging mode to be 1C-1.5C;
setting the charging rate of the standard charging mode to be 0.5C-1C;
and setting the charging rate of the slow charging mode to be 0.25-0.5 ℃. The memory is electrically connected to the processor.
The charging method of the invention can realize the optimal charging rate and the charging mode of the appointed charging rate, and when the parameters input by the user are consistent with the standard charging parameters (which can be obtained according to the label or the instruction on the battery body) of the battery, the performance of the battery is optimally represented at the moment. When the charging rate obtained by the parameters input by the user is inconsistent with the standard charging rate of the battery, the battery is charged in a state meeting the user requirement for the specified charging rate, so that the charging mode is more diversified and humanized. The system also comprises a safety control and alarm module, which is used for carrying out the following steps before the charged equipment is charged at the designated charging rate:
if the output current value in the current output parameter exceeds the load upper limit value of the current charger, charging with the load lower limit value of the charger, and outputting a warning signal;
and if the charging rate in the current output parameter exceeds the upper limit value of the safe charging rate range, stopping charging and outputting a warning signal. In order to ensure the circuit safety, in a preferred embodiment, the circuit further comprises a safety protection module, which comprises: the battery protection device comprises at least one of a voltage overcharge protection unit, a battery environment temperature high-low temperature protection unit, a power failure maintenance-free charging protection unit after the battery is full, a battery reverse connection protection unit and an output positive and negative electrode short circuit ignition-free protection unit.
In a third aspect, a charger according to the present disclosure is configured to implement the charging method according to any one of the above aspects. The charger comprises a basic charging assembly and an intelligent charging assembly. The basic charging assembly comprises an AC input rectifying circuit 31, a power switch circuit 32, a high-frequency transformer 33, a rectifying and filtering circuit 34, a charging control switch 35, an output line 36, a current/voltage detection processor 38 and a PMW control integrated circuit 37; the intelligent charging assembly comprises a single-chip processor 41, a function display control panel 42, a battery type selection key 44, a charging speed selection key 45, a charging voltage setting key 46, a battery number setting key 47 and a battery capacity setting key 43.
Please refer to fig. 3, which is a schematic circuit diagram of the charger of the third aspect. The output end of the AC input rectifying circuit 31 is electrically connected with the input end of the power switch circuit 32; the output end of the power switch circuit 32 is electrically connected with the input end of the high-frequency transformer 33; the output end of the high-frequency transformer 33 is electrically connected with the input end of the rectifying and filtering circuit 34; an output terminal of the rectifying and filtering circuit 34 is electrically connected to an input terminal of the charge control switch 35, and current and voltage signals of the rectifying and filtering circuit 34 are input to the current/voltage detection processor 38; the output end of the charging control switch 35 is connected with one pole of a charged battery through an output line 36, the other pole of the charged battery is electrically connected with the input end of the single-chip processor 41 through the output line 36, and the output end of the single-chip processor 41 is electrically connected with the input end of the charging control switch 35 so as to control the on-off of the charging control switch 35; the singlechip processor 41 is in signal interaction with the current/voltage detection processor 38 to receive the current/voltage signal and send out a corresponding control signal; an output of the current/voltage detection processor 38 is electrically connected to an input of the PMW control integrated circuit 37, and an output of the PMW control integrated circuit 37 is electrically connected to an input of the power switching circuit 32.
The output end of the battery type selection key 44, the output end of the charging speed selection key 45, the output end of the charging voltage setting key 46, the output end of the battery number setting key 47 and the output end of the battery capacity setting key 43 are respectively electrically connected with the input end of the function display control panel 42; the function display control panel 42 is in signal interaction with the single-chip processor 41 to send out input parameters and receive corresponding control signals and display corresponding conditions. The battery model value is input through the battery type selection key 44, the current charge mode is input through the charge speed selection key 45, the voltage set value is input through the charge voltage set key 46, the battery capacity set value is input through the battery capacity set key 43, and the battery number set value is input through the battery number set key 47.
The charger further comprises an ambient temperature detector 51, and an output end of the ambient temperature detector 51 is electrically connected with an input end of the singlechip processor 41.
In a fourth aspect, the charger of the present specification may be used for charging independently, and may also be used in a charging pile or a charging station, and may be used for charging not only automobiles, but also all vehicles and even ships. Therefore, the specification also provides a charging pile or a charging station, comprising the charger.
In a fifth aspect, in another embodiment of the present description, there is provided a computer-readable storage medium, which when executed by one or more processors, causes the one or more processors to perform the steps of the charging method as set forth in any one of the above aspects.
According to the charging method, not only can batteries with different charging voltages be charged, but also batteries with different charging currents can be charged, so that the charging requirements of different batteries are met, and further, the charging adaptation of different batteries can be achieved through one charger, each battery can be charged in a standard charging state, a plurality of special chargers are not needed to charge different batteries, and resources are saved.
In the present specification, the fast charge or the fast charge mode indicates the same concept, the standard charge or the standard charge mode indicates the same concept, and the slow charge or the slow charge mode indicates the same concept.
In the description of the present specification, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present specification and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and are therefore not to be construed as limiting the present specification. In the description of the present specification, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (11)
1. A charger, comprising:
the control circuit is used for preparing charging rules meeting different charging modes according to the battery capacity so as to control and output preset charging current and/or charging voltage, and the charging rules comprise: determining each preset charging rate corresponding to a battery according to a certain battery capacity and each preset charging current, and if the preset charging rate is matched with the charging mode, representing the charging mode of the battery by the preset charging rate, wherein the charging rate=charging current/battery capacity;
displaying a control panel to obtain parameters and a current charging mode of the charged battery;
the processor is used for determining current output parameters according to the charging rule, and comprises the following steps: obtaining a corresponding charging rate value according to a set value of the battery capacity and a set value of the charging current, matching a charging rate range in a corresponding charging mode to obtain a charging gear, or matching a charging rule according to the set value of the battery capacity, the selection of the charging mode and the set value of the charging current to obtain the charging gear;
the charging circuit is used for charging the charged battery according to the current output parameter if the processor determines that the charging can be performed according to the charging current or the charging rate corresponding to the charging gear, and the charging circuit is used for charging the charged battery until the charging is completed;
the processor is in signal interaction with the display control panel, the output end of the control circuit is electrically connected with the receiving end of the processor, and the input end of the charging circuit is electrically connected with the output end of the control circuit.
2. The charger of claim 1, further comprising a memory to store corresponding preset data for the charging modes, the charging modes including a fast charging mode, a standard charging mode, and a slow charging mode;
setting the charging rate of the quick charging mode to be 1C-1.5C;
setting the charging rate of the standard charging mode to be 0.5C-1C;
and setting the charging rate of the slow charging mode to be 0.25-0.5 ℃.
3. A charging method for a charger according to claim 1 or 2, comprising the steps of:
and formulating charging rules meeting different charging modes according to the battery capacity so as to control and output preset charging current and/or charging voltage, wherein the charging rules comprise: determining each preset charging rate corresponding to a battery according to a certain battery capacity and each preset charging current, and if the preset charging rate is matched with the charging mode, representing the charging mode of the battery by the preset charging rate, wherein the charging rate=charging current/battery capacity;
acquiring parameters and a current charging mode of the charged battery, and determining current output parameters according to the charging rule, wherein the current output parameters comprise: obtaining a corresponding charging rate value according to a set value of the battery capacity and a set value of the charging current, matching a charging rate range in a corresponding charging mode to obtain a charging gear, or matching a charging rule according to the set value of the battery capacity, the selection of the charging mode and the set value of the charging current to obtain the charging gear;
and if the charging can be carried out according to the charging current or the charging rate corresponding to the charging gear, charging the charged battery by the current output parameter until the charging is completed.
4. A charging method according to claim 3, characterized in that: the charging mode comprises at least one of a fast charging mode, a standard charging mode and a slow charging mode;
setting the charging rate of the quick charging mode to be 1C-1.5C;
setting the charging rate of the standard charging mode to be 0.5C-1C;
and setting the charging rate of the slow charging mode to be 0.25-0.5 ℃.
5. The charging method of claim 4, wherein the charging rules comprise at least one of:
if any one of the preset charging rates is matched with one of the charging modes, the charging mode of the battery is represented by the preset charging rate;
and if the three preset charging rates are respectively matched with the charging modes, representing each charging mode of the battery by the preset charging rates.
6. The charging method according to claim 5, characterized in that: and setting each preset charging current as a plurality of corresponding output files outputting different current values.
7. The charging method according to claim 5, wherein the method of matching the preset charge rate with the charge pattern comprises: and if the preset charging rate is within the charging rate range of any charging mode, the preset charging rate is considered to be matched with the charging mode.
8. A charging method according to claim 3, wherein said obtaining parameters of the charged battery and the current charging mode, determining the current output parameters according to the charging rules, comprises:
acquiring at least one of a voltage set value, a battery model value and a battery number set value of the charged battery to determine the current output voltage;
and obtaining a battery capacity set value and a specified current charging mode of the charged battery, and determining a current output current or a current charging rate according to the charging rule.
9. The charging method according to any one of claims 3 to 8, characterized by, before charging the charged device at the specified charging rate, further comprising the step of:
if the output current value in the current output parameter exceeds the load upper limit value of the current charger, charging with the load lower limit value of the charger, and outputting a warning signal;
and if the charging rate in the current output parameter exceeds the upper limit value of the safe charging rate range, stopping charging and outputting a warning signal.
10. The charging method according to any one of claims 3 to 8, wherein the completing the charging includes: and determining the cut-off point for completing charging according to at least one parameter of the charging electric quantity, the charging time and the current output parameter, the current charging voltage or the battery temperature.
11. A computer-readable storage medium storing computer-readable instructions that, when executed by one or more processors, cause the one or more processors to perform the steps of the charging method of any one of claims 3 to 10.
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| CN110783978A (en) * | 2019-10-18 | 2020-02-11 | 安徽静深实业有限公司 | Method and device for adjusting charging speed of electronic product |
| CN111293757A (en) * | 2020-03-24 | 2020-06-16 | 上海广为美线电源电器有限公司 | Fully-automatic control charging equipment |
| CN112383102B (en) * | 2020-10-28 | 2024-03-19 | 欣旺达动力科技股份有限公司 | Battery charging method, electronic device, and storage medium |
| CN112622660A (en) * | 2020-11-16 | 2021-04-09 | 蚌埠睿德新能源科技有限公司 | A charger |
| CN112290649A (en) * | 2020-11-23 | 2021-01-29 | 国网北京市电力公司 | Charging control method and device, storage medium and processor |
| TWI838654B (en) * | 2021-10-19 | 2024-04-11 | 廣達電腦股份有限公司 | Smart battery device and fast charging method thereof |
| CN117755150B (en) * | 2023-11-28 | 2024-08-02 | 北京潞电电力建设有限公司 | Quick charging method based on machine learning |
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