CN112152271A - Quick charging method, charging device, electronic equipment and charging system - Google Patents
Quick charging method, charging device, electronic equipment and charging system Download PDFInfo
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- CN112152271A CN112152271A CN201910565737.0A CN201910565737A CN112152271A CN 112152271 A CN112152271 A CN 112152271A CN 201910565737 A CN201910565737 A CN 201910565737A CN 112152271 A CN112152271 A CN 112152271A
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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
- H02J7/007—Regulation of charging or discharging current or voltage
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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
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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 application provides a quick charging method, a charging device, electronic equipment and a charging system, wherein the quick charging method comprises the following steps: determining the charging current of the current constant-current charging stage, and performing constant-current charging on the battery by using the determined charging current until entering the next constant-current charging stage, wherein a plurality of constant-current charging stages in the charging process respectively correspond to a plurality of charging currents, and the charging current of each constant-current charging stage is determined according to the state information of the battery; acquiring the current electric quantity of the battery in the constant current charging process; when the current electric quantity of the battery reaches the preset electric quantity, the battery is stopped to be charged, therefore, the charging speed in the whole charging process can be optimized by dynamically adjusting the charging current, the charging time is shortened to a large extent, and the charging efficiency is effectively improved.
Description
Technical Field
The embodiment of the application relates to the technical field of charging, and more particularly, to a quick charging method, a charging device, an electronic device and a charging system.
Background
In the related art, most electronic devices are charged by a constant current + constant voltage charging method, that is, the electronic devices are charged by a constant current first, and then charged to a cut-off voltage, and then charged by a constant voltage with the cut-off voltage until the electronic devices reach a cut-off current. However, the applicant of the present application finds that there is a constant-voltage charging process in the charging process, and the current in the constant-voltage charging process is continuously decreased, so that the charging speed is gradually decreased, and the longer the constant-voltage charging process is, the lower the charging speed and the charging efficiency are, which affects the user experience.
Content of application
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present application is to provide a fast charging method, which optimizes the charging speed in the whole charging process by dynamically adjusting the charging current, so as to effectively improve the charging efficiency.
A second object of the present application is to provide a charging device.
A third object of the present application is to provide an electronic device.
A fourth object of the present application is to provide a charging system.
A fifth object of the present application is to propose a readable storage medium.
In order to achieve the above object, a first embodiment of the present application provides a fast charging method, including the following steps: determining the charging current of the current constant-current charging stage, and performing constant-current charging on the battery by using the determined charging current until entering the next constant-current charging stage, wherein a plurality of constant-current charging stages in the charging process respectively correspond to a plurality of charging currents, and the charging current of each constant-current charging stage is determined according to the state information of the battery; in the constant current charging process, acquiring the electric quantity stored by the battery; and when the difference value between the electric quantity stored by the battery and the preset electric quantity is smaller than or equal to a preset threshold value, stopping charging the battery.
According to the quick charging method provided by the embodiment of the application, the charging speed in the whole charging process can be optimized by dynamically adjusting the charging current, the charging time is greatly shortened, and the charging efficiency is effectively improved.
According to an embodiment of the present application, the determining the charging current of each of the constant current charging stages according to the state information of the battery includes: and calculating the charging current of the battery according to the electric quantity stored by the battery and a preset electric quantity.
According to one embodiment of the application, acquiring the amount of power stored by the battery comprises: and calculating the electric quantity stored by the battery according to the charging current and the charging time of the battery.
According to an embodiment of the application, calculating the charging current of the battery according to the preset amount of power and the amount of power stored in the battery comprises: calculating a difference value between the preset electric quantity and the electric quantity stored by the battery; and acquiring the product of the difference value and a preset coefficient to be used as the charging current of the battery.
According to an embodiment of the application, the preset electric quantity is a rated electric quantity of the battery, and the preset coefficient is a rated charging rate of the battery.
According to an embodiment of the present application, when the charging time of the current constant current charging stage reaches the preset charging time of the current constant current charging stage, switching to the next constant current charging stage.
According to one embodiment of the application, when the charging voltage of the battery reaches a preset voltage, switching to the next constant current charging phase.
According to an embodiment of the application, the preset voltage is greater than or equal to a rated voltage of the battery.
In order to achieve the above object, a second aspect of the present application provides a charging device, which charges a battery of an electronic device through a charging interface after the charging device is connected to the electronic device through the charging interface, the charging device includes a first control circuit and a first charging circuit, wherein the first control circuit is configured to determine a charging current of a current constant current charging stage, and perform constant current charging on the battery through the first charging circuit according to the determined charging current until a next constant current charging stage is reached, wherein a plurality of constant current charging stages in a charging process correspond to a plurality of charging currents, respectively, and the charging current of each constant current charging stage is determined according to state information of the battery, and in the constant current charging process, an electric quantity stored in the battery is obtained, and when a difference between the electric quantity stored in the battery and a preset electric quantity is smaller than or equal to a preset threshold value, stopping charging the battery.
According to the charging device provided by the embodiment of the application, the charging speed in the whole charging process can be optimized by dynamically adjusting the charging current, the charging time is greatly shortened, and the charging efficiency is effectively improved.
According to an embodiment of the application, the first control circuit is further configured to, in each constant current charging phase, calculate a charging current of the battery according to the amount of electricity stored in the battery and a preset amount of electricity.
According to an embodiment of the application, the first control circuit is further configured to calculate the amount of power stored by the battery according to a charging current and a charging time of the battery.
According to an embodiment of the application, the first control circuit is further configured to calculate a difference between the preset electric quantity and the electric quantity stored in the battery, and obtain a product between the difference and a preset coefficient to be used as a charging current of the battery.
According to an embodiment of the application, the preset voltage is a rated charge capacity of the battery, and the preset coefficient is a rated charge rate of the battery.
According to an embodiment of the present application, the first control circuit is further configured to switch to a next constant current charging stage when the charging time of the current constant current charging stage reaches a preset charging time of the current constant current charging stage.
According to an embodiment of the present application, the first control circuit is further configured to switch to a next constant current charging phase when the charging voltage of the battery reaches a preset voltage.
According to an embodiment of the application, the preset voltage is greater than or equal to a rated voltage of the battery.
In order to achieve the above object, an electronic device according to an embodiment of a third aspect of the present application communicates with a charging device through a charging interface after the electronic device is connected with the charging device through the charging interface, the charging device charges a battery of the electronic equipment through the charging interface, the electronic equipment comprises a second control circuit and a second charging circuit, wherein the second control circuit is used for determining the charging current of the current constant current charging stage and sending the determined charging current to the charging device so that the charging device can conveniently charge the battery according to the determined charging current, the battery is charged with constant current through the second charging circuit until entering the next constant current charging stage, the charging method comprises the following steps that a plurality of constant current charging stages in the charging process respectively correspond to a plurality of charging currents, and the charging current of each constant current charging stage is determined according to state information of a battery; the second control circuit is further used for acquiring the electric quantity stored by the battery in the constant-current charging process, and controlling the charging device to stop charging the battery when the difference value between the electric quantity stored by the battery and the preset electric quantity is smaller than or equal to a preset threshold value.
According to the electronic equipment provided by the embodiment of the application, the charging speed in the whole charging process can be optimized by dynamically adjusting the charging current, the charging time is greatly shortened, and the charging efficiency is effectively improved.
According to an embodiment of the application, the second control circuit is further configured to, in each constant current charging phase, calculate a charging current of the battery according to the electric quantity stored in the battery and a preset electric quantity of the battery.
According to an embodiment of the application, the second control circuit is further configured to calculate the amount of power stored by the battery according to a charging current and a charging time of the battery.
According to an embodiment of the application, the second control circuit is further configured to calculate a difference between the preset electric quantity and the electric quantity stored in the battery, and obtain a product between the difference and a preset coefficient to be used as the charging current of the battery.
According to an embodiment of the application, the preset electric quantity is a rated electric quantity of the battery, and the preset coefficient is a rated charging rate of the battery.
According to an embodiment of the present application, the second control circuit is further configured to switch to a next constant current charging stage when the charging time of the current constant current charging stage reaches a preset charging time of the current constant current charging stage.
According to an embodiment of the present application, the second control circuit is further configured to switch to a next constant current charging phase when the charging voltage of the battery reaches a preset voltage.
According to an embodiment of the application, the preset voltage is greater than or equal to a rated voltage of the battery.
In order to achieve the above object, a charging system according to a fourth aspect of the present application includes the charging device and the electronic device.
According to the charging system provided by the embodiment of the application, the charging speed in the whole charging process can be optimized by dynamically adjusting the charging current, the charging time is greatly shortened, and the charging efficiency is effectively improved.
In order to achieve the above object, a readable storage medium is provided in an embodiment of a fifth aspect of the present application, on which a fast charging program of a battery is stored, and the program is executed by a processor to implement the fast charging method.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described below.
Fig. 1 is a schematic flow chart of a fast charging method according to an embodiment of the present application.
Fig. 2 is a schematic flow chart of a fast charging method according to an embodiment of the present application.
Fig. 3 is a block diagram of a charging device according to an embodiment of the present application.
Fig. 4 is a block schematic diagram of an electronic device according to an embodiment of the present application.
FIG. 5 is a block schematic diagram of a charging system in an embodiment of the present application;
fig. 6 is a block diagram of a charging system according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A quick charging method, a charging apparatus, an electronic device, and a charging system of a battery according to embodiments of the present invention are described below with reference to the accompanying drawings.
In the embodiment of the present application, in order to optimize the charging process, the embodiment of the present application proposes that a multi-stage constant current charging mode is adopted to perform constant current charging on a battery, and a charging current in each constant current charging stage is dynamically adjusted to maximize the charging current in the charging process as much as possible, specifically, in each constant current charging stage, the charging current of the battery is calculated according to state information (for example, electric quantity) of the battery, and then the charging current is used to perform constant current charging on the battery, so that the charging speed in the whole charging process is maximized, and the use experience of a user is improved.
The charging current of each constant current charging stage may be determined based on the current electric quantity, the rated electric quantity, and other state information of the battery, for example, a difference between a preset electric quantity and the current electric quantity of the battery may be multiplied by a preset coefficient to be used as the charging current of the battery.
It should be understood that the determination subject of the charging current may be a charging device, and may also be an electronic device. For example, the charging device is used as a main body for determining the charging current, and the charging device can determine the charging current of the current constant-current charging stage according to the state information of the battery. Alternatively, the electronic device serves as a main body for determining the charging current, and the charging device of the electronic device may determine the charging current of the current constant-current charging stage according to the state information of the battery and then transmit the charging current to the charging device.
It should be understood that the charging device is used to charge a battery in an electronic device. The electronic device may refer to a mobile terminal, which may include, but is not limited to, a smart phone, a computer, a Personal Digital Assistant (PDA), a wearable device, a bluetooth headset, a game device, a camera device, and the like. The charging device may be a device having a function of charging the terminal, such as an adapter, a portable power source (power pack), or an in-vehicle charger.
In this embodiment, the charging device may be connected to a charging interface of the electronic device, and further, the charging device may charge the electronic device through a power line in the charging interface, and the charging device may communicate with the electronic device through a data line in the charging interface. Therefore, the charging process of the battery can be controlled through the communication between the electronic equipment and the charging device, and a better charging effect is achieved.
The following describes the fast charging method according to an embodiment of the present application in detail with reference to specific examples.
Fig. 1 is a schematic flow chart of a fast charging method according to an embodiment of the present application. The quick charging method comprises the following steps:
s1: and determining the charging current of the current constant-current charging stage, and performing constant-current charging on the battery by using the determined charging current until entering the next constant-current charging stage, wherein a plurality of constant-current charging stages in the charging process respectively correspond to a plurality of charging currents, and the charging current of each constant-current charging stage is determined according to the state information of the battery.
It should be understood that a plurality of preset constant current charging stages may be preset, and the preset charging current of each preset constant current charging stage may be determined according to the state information of the battery, such as the electric quantity information of the battery, for example, the electric quantity to be charged in each constant current charging stage may be preset, and then the charging current of each constant current charging stage may be set based on the preset electric quantity. Specifically, each preset constant current charging stage can be preset with a corresponding preset charging current and a corresponding preset charging time, and when charging is performed according to the preset charging current and the preset charging time, the electric quantity charged into the battery in each constant current charging stage can also be preset because the electric quantity charged into the battery is equal to the product of the charging current and the charging time. For example, the preset charge amount Q is I × t, where I is a preset charge current and t is a preset charge time.
Therefore, the preset constant current charging stage and the preset charging current can have a one-to-one mapping relation, after the preset constant current charging stage where the current constant current charging stage is located is determined, the corresponding preset charging current and the preset charging time can be determined, and after the charging current is obtained, the preset constant current charging stage where the current constant current charging stage is located can also be determined.
In the actual charging process, a preset constant current charging stage corresponding to the current constant current charging stage may be determined, then, a preset charging current corresponding to the preset constant current charging stage is used as a charging current of the current constant current charging stage, and the battery is subjected to constant current charging at the current constant current charging stage by using the determined charging current.
Of course, after the preset constant current charging stage corresponding to the current constant current charging stage is determined, the charging current of the current constant current charging stage can also be calculated according to the electric quantity of the battery when the previous constant current charging stage is finished.
Thereby, the charging current per constant current charging phase is maximized, thereby maximizing the charging speed during the entire charging process.
In one embodiment of the present application, the determining of the charging current for each constant current charging phase according to the state information of the battery includes: and calculating the charging current of the battery according to the electric quantity stored by the battery and the preset electric quantity.
It should be understood that the amount of power stored by the battery may refer to the amount of power currently stored in the battery, including the amount of power remaining in the battery before charging and the amount of power charged during charging. Assuming that the remaining capacity of the battery before charging is 0, i.e. the initial capacity Q0-I0 × t 0-0, wherein the initial charging current I0 of the battery is 0, the initial charging time t0 is 0, and after n-1 constant current charging stages, the total amount of electricity charged into the battery is Q (n-1) ═ I0 × t0+ I1 × t1+. + I (n-1), then the amount of electricity stored in the battery is the total amount of electricity Q (n-1) charged into the battery, where I1 is the charging current of the 1 st constant current charging phase, t1 is the actual charging time of the 1 st constant current charging phase, I (n-1) is the charging current of the n-1 st constant current charging phase, and t (n-1) is the actual charging time of the n-1 st constant current charging phase (the determination of the actual charging time is described below).
Specifically, acquiring the amount of power stored by the battery includes: and calculating the electric quantity stored by the battery according to the charging current and the charging time of the battery. For example, the amount of power stored in the battery may be calculated from the amount of power remaining in the battery at the start of charging and the charging current and charging time of the battery for each constant current charging period from the start of charging to the last constant current charging period.
More specifically, calculating the charging current of the battery according to the preset amount of power and the amount of power stored in the battery includes:
calculating a difference value between a preset electric quantity and an electric quantity stored by a battery;
and acquiring the product of the difference value and a preset coefficient to be used as the charging current of the battery.
The preset electric quantity can be the rated electric quantity of the battery, and the preset coefficient can be the rated charging rate of the battery.
That is, taking the nth constant current charging stage as an example, the charging current In the nth constant current charging stage is In ═ m × Qc-Q (n-1), m is a preset coefficient, Qc is a rated electric quantity, and Q (n-1) is an electric quantity stored In the battery after (n-1) constant current charging stages.
Specifically, assuming that the remaining capacity of the battery before charging is 0, i.e., the initial capacity Q0-I0 × t 0-0, wherein, the initial charging current I0 of the battery is 0, and the initial charging time t0 is 0, then the charging current I1 of the 1 st constant current charging stage is a x (Qc-I0 × t0), wherein a is the rated charging rate of the battery, further, the battery is charged with a charging current I1 for a preset charging time t1, after the 1 st constant current charging stage, the amount of electricity charged into the battery, i.e. the circuit stored in the battery, is Q1 ═ I1 × t1, thus, the charging current I2 In the 2 nd constant current charging stage is a × (Qc-Q1) ═ a × (Qc- (I0 × t0+ I1 × t1)), and so on, and the charging current In the n th constant current charging stage is a × (Qc-Q (n-1)) × (Qc- (I0 × t0+ I1 × t1+, + I (n-1))).
It should be understood that the charging current, the preset charging current, and the like in the embodiment of the present application can be calculated according to the aforementioned calculation manner.
When the remaining battery capacity is not 0, the charging current I1 in the 1 st constant current charging phase may be calculated from the remaining battery capacity Qs at the start of charging and the preset battery capacity Qc, that is, in this case, the charging current I1 in the 1 st constant current charging phase is a × (Qc-Qs). After the charging current I1 of the 1 st constant current charging stage is determined, the preset constant current charging stage corresponding to the charging current I1 may also be determined according to the determined charging current I1, and the preset charging time corresponding to the preset constant current charging stage is further determined as the preset charging time of the 1 st constant current charging stage, so that the charging parameters (charging current and charging time) of the initial constant current charging stage of the charging process can be determined.
That is, assuming that the remaining capacity of the battery at the beginning of charging is Qs, and the preset charging current Ij of the jth preset constant current charging stage is equal to the charging current I1 of the 1 st constant current charging stage, it means that Qs (j-1), that is, the capacity charged into the battery after (j-1) preset constant current charging stages from the charge of 0 is Qs, so that when the remaining capacity of the battery is Qs, the battery is charged by starting from the jth preset constant current charging stage, and the preset charging time of the 1 st constant current charging stage is the preset charging time of the jth preset constant current charging stage.
According to one embodiment of the present application, the switching point of the current constant current charging phase may be determined according to the charging time of the current constant current charging phase or the charging voltage of the battery.
Specifically, the determination of the switching point of the constant current charging phase by the charging time may be: and when the charging time of the current constant-current charging stage reaches the preset charging time of the current constant-current charging stage, switching to the next constant-current charging stage.
The preset charging time of each constant current charging stage can be preset, and the length of the preset charging time can be adjusted according to specific needs, for example, the preset charging time can be determined according to state information of the battery, such as electric quantity information. The preset charging time of different constant current charging stages can be the same or different.
That is, the charging current of the current constant current charging stage may be determined, the preset charging time of the current constant current charging stage may be determined, then the battery may be subjected to constant current charging with the determined charging current, the charging time of the current constant current charging stage may be recorded, and when the charging time of the current constant current charging stage reaches the preset charging time, the next constant current charging stage may be entered.
Specifically, determining the switching point of the constant current charging phase by the charging voltage may be: and when the charging voltage of the battery reaches the preset voltage, switching to the next constant current charging stage.
Wherein the preset voltage may be greater than or equal to a rated voltage of the battery.
It should be understood that in some embodiments, the preset voltage may be the rated voltage V0, where the rated voltage V0 serves as a switching point of the constant current charging phase, and in other embodiments, the preset voltage may be greater than the rated voltage of the battery, such as V0+ Vx (Vx >0), where the rated voltage V0+ Vx serves as a switching point of the constant current charging phase, so that the charging speed can be further increased.
That is, the charging current of the current constant current charging stage may be determined, then the battery may be subjected to constant current charging with the determined charging current, the charging voltage of the battery may be detected, and when the charging voltage of the battery reaches the preset voltage, the next constant current charging stage may be entered.
It should be understood that the charging time and the charging voltage in the foregoing embodiments may be combined to determine the switching point of the constant current charging phase, that is, when the charging time of the current constant current charging phase reaches the preset charging time or the charging voltage of the battery reaches the preset voltage, the switching is performed to the next constant current charging phase.
It should also be understood that if the switching to the next constant current charging phase is performed at the current constant current charging phase with the charging voltage of the battery reaching the preset voltage as the switching point, the actual charging time of the current constant current charging phase may be determined by recording the time the voltage of the battery is charged to the preset voltage. And if the current constant-current charging stage is switched to the next constant-current charging stage by taking the charging time reaching the preset charging time as a switching point, the actual charging time of the current constant-current charging stage is the preset charging time.
It should be noted that, if in a certain constant current charging stage, the charging voltage of the battery reaches the preset voltage and the charging stop condition is not yet met (for example, the current electric quantity Qn of the battery is not equal to the rated electric quantity Qc, which will be mentioned in the following embodiments), the charging voltage of the battery is switched to the next constant current charging stage when the charging voltage of the battery reaches the preset voltage, and each subsequent constant current charging stage takes the reaching of the preset voltage as a switching point.
S2: in the constant current charging process, acquiring the electric quantity stored by a battery;
s3: and when the difference value between the electric quantity stored by the battery and the preset electric quantity is smaller than or equal to the preset threshold value, stopping charging the battery.
The preset power may refer to a rated power of the battery, and since the rated capacity of the battery may change with the use of the battery, the rated capacity of the battery may be corrected at regular intervals, and the preset power in step S3 may be corrected.
It should be understood that during the constant current charging, the steps S2 and S3 may be executed after the end of each constant current charging phase, or the steps S2 and S3 may be executed after the charging current of the battery reaches (is greater than or equal to) the first current value or the electric quantity of the battery reaches (is greater than or equal to) the first electric quantity value and then after the end of each subsequent constant current charging phase.
Specifically, after the constant current charging is performed on the battery, whether the difference between the electric quantity stored in the battery and the preset electric quantity is smaller than or equal to a preset threshold value or not is also judged, that is, whether the electric quantity stored in the battery is basically equal to the rated electric quantity or not is judged, if the difference between the electric quantity stored in the battery and the preset electric quantity is smaller than or equal to the preset threshold value, the charging is judged to be finished, the charging of the battery is stopped, and if the difference between the electric quantity stored in the battery and the preset electric quantity is larger than the preset threshold value, the constant current charging is continued.
As described above, the fast charging method according to the embodiment of the present application has the following charging process:
assuming that the rated capacity of the known battery is Qc and the rated charge rate is a, in this embodiment, I0 is 0, t0 is 0, Q0 is 0, the amount of electricity Qi charged in the battery is I0 × t0+ I1 × t1+. + Ii × ti, the charging current is Ii a × [ Q0-Q (I-1) ], and I is a positive integer.
First, constant current charging is started with a charging current I1 ═ a × Qc-I0 × t0), after t1 time of constant current charging with a current I1, a switching is made to the charging current I2 ═ a × [ Qc- (I0 × t0+ I1 × t1 ], after t2 time of constant current charging with the charging current I2, a switching is made to the charging current I3 × [ Qc- (I0 × t0+ I1 × t1+ I2 × t2) ], and so on, when the current is switched to In × [ Qc- (I0 × t0+ I1 × t1+. + I (n-1) × t (n-1)) ] and after t time of charging, whether Qc and Qn are equal at this time is calculated, and if so, charging is stopped, and if not equal, the charging is continued until the next charging phase is stopped. In this embodiment, that Qc is equal to Qn may mean that a difference between Qc and Qn is less than or equal to a preset threshold.
As shown in fig. 2, the charging process of the embodiment of the present application includes the following steps:
s101: charging is started.
S102: the current is switched to In × [ Qc-Q (n-1) ].
S103: and judging whether Qc is equal to Qn.
If yes, executing step S105; if not, step S104 is executed.
S104: when the charging time t of the current constant current charging phase reaches the preset charging time tn or the charging voltage V of the battery reaches the preset voltage V0, adding 1 to n, namely n is n +1, and executing the next constant current charging phase.
S105: the charging is stopped.
In summary, according to the rapid charging method provided by the embodiment of the application, the charging speed in the whole charging process can be optimized by dynamically adjusting the charging current, the charging time is greatly shortened, and the charging efficiency is effectively improved.
The charging device and the electronic apparatus according to the embodiment of the present application are described in detail below with reference to fig. 3 to 5. It is to be understood that the terms and features referred to on the device side are similar to those on the method side, and the repetitive description is appropriately omitted for the sake of brevity.
Fig. 3 is a block diagram of a charging device according to an embodiment of the present application. As shown in fig. 3 and 6, after charging device 100 is connected to electronic device 200 via charging interface 105, the battery 204 of the electronic device 200 is charged through the charging interface 105, the charging apparatus 100 comprises a first control circuit 101 and a first charging circuit 102, wherein, the first control circuit 101 is used for determining the charging current of the current constant current charging stage and controlling the charging current, the battery is charged with constant current by the first charging circuit 102 until the next constant current charging stage, wherein, a plurality of constant current charging stages in the charging process respectively correspond to a plurality of charging currents, and the charging current of each constant current charging stage is determined according to the state information of the battery, and in the constant current charging process, acquiring the electric quantity stored by the battery, and stopping charging the battery when the difference value between the electric quantity stored by the battery and the preset electric quantity is less than or equal to a preset threshold value.
According to an embodiment of the present application, the first control circuit 101 is further configured to calculate a charging current of the battery according to the amount of power stored in the battery and a preset amount of power in each constant current charging phase.
According to an embodiment of the present application, the first control circuit 101 is further configured to calculate an amount of power stored by the battery according to a charging current and a charging time of the battery.
According to an embodiment of the present application, the first control circuit 101 is further configured to calculate a difference between a preset power and a power stored in the battery, and obtain a product of the difference and a preset coefficient as a charging current of the battery.
According to one embodiment of the application, the preset voltage is a rated charge of the battery, and the preset coefficient is a rated charge rate of the battery.
According to an embodiment of the present application, the first control circuit 101 is further configured to switch to a next constant current charging phase when the charging time of the current constant current charging phase reaches a preset charging time of the current constant current charging phase.
According to an embodiment of the present application, the first control circuit 101 is further configured to switch to a next constant current charging phase when the charging voltage of the battery reaches a preset voltage.
According to one embodiment of the application, the preset voltage is greater than or equal to a rated voltage of the battery.
To sum up, according to the charging device that this application embodiment provided, through dynamic adjustment charging current, can optimize the charging speed in whole charging process, the great amplitude shortens charge time, effectively promotes charge efficiency.
Fig. 4 is a block schematic diagram of an electronic device according to an embodiment of the present application. As shown in fig. 4 and 6, the electronic device 200 communicates with the charging device 100 through the charging interface 205 after being connected with the charging device 100 through the charging interface 205, the charging device 100 charges the battery 204 of the electronic device 200 through the charging interface 205, the electronic device 200 includes a second control circuit 201 and a second charging circuit 202, wherein the second control circuit 201 is configured to determine a charging current of a current constant current charging phase and send the determined charging current to the charging device, so that the charging device performs constant current charging on the battery through the second charging circuit 202 according to the determined charging current until entering a next constant current charging phase, wherein a plurality of constant current charging phases in the charging process correspond to a plurality of charging currents, respectively, and the charging current of each constant current charging phase is determined according to the state information of the battery; the second control circuit 201 is further configured to obtain the electric quantity stored in the battery during the constant current charging process, and control the charging device to stop charging the battery when a difference between the electric quantity stored in the battery and a preset electric quantity is less than or equal to a preset threshold.
According to an embodiment of the present application, the second control circuit 201 is further configured to calculate a charging current of the battery according to the amount of power stored in the battery and the current amount of power of the battery with a preset amount of power in each constant current charging phase.
According to an embodiment of the present application, the second control circuit 201 is further configured to calculate the amount of power stored by the battery according to the charging current and the charging time of the battery.
According to an embodiment of the present application, the second control circuit 201 is further configured to calculate a difference between a preset power and a power stored in the battery, and obtain a product of the difference and a preset coefficient as a charging current of the battery.
According to one embodiment of the application, the preset electric quantity is a rated electric quantity of the battery, and the preset coefficient is a rated charging rate of the battery.
According to an embodiment of the present application, the second control circuit 201 is further configured to switch to a next constant current charging phase when the charging time of the current constant current charging phase reaches the preset charging time of the current constant current charging phase.
According to an embodiment of the present application, the second control circuit 201 is further configured to switch to the next constant current charging phase when the charging voltage of the battery reaches a preset voltage.
According to one embodiment of the application, the preset voltage is greater than or equal to a rated voltage of the battery.
To sum up, according to the electronic equipment that this application embodiment provided, through dynamic adjustment charging current, can optimize the charging speed in whole charging process, the charging time is shortened to great extent, effectively promotes charge efficiency.
Fig. 5 is a block diagram of a charging system according to an embodiment of the present application. As shown in fig. 5 and 6, the communication system 300 includes the charging apparatus 100 described in fig. 3 and the electronic device 200 described in fig. 4.
According to the charging system provided by the embodiment of the application, the charging speed in the whole charging process can be optimized by dynamically adjusting the charging current, the charging time is greatly shortened, and the charging efficiency is effectively improved.
In addition, an embodiment of the present application further provides a readable storage medium, on which a fast charging program of a battery is stored, and the program, when executed by a processor, implements the fast charging method of the embodiment of fig. 1-2.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (26)
1. A fast charging method, comprising the steps of:
determining the charging current of the current constant-current charging stage, and performing constant-current charging on the battery by using the determined charging current until entering the next constant-current charging stage, wherein a plurality of constant-current charging stages in the charging process respectively correspond to a plurality of charging currents, and the charging current of each constant-current charging stage is determined according to the state information of the battery;
in the constant current charging process, acquiring the electric quantity stored by the battery;
and when the difference value between the electric quantity stored by the battery and the preset electric quantity is smaller than or equal to a preset threshold value, stopping charging the battery.
2. The fast charging method according to claim 1, wherein the charging current for each of the constant current charging phases is determined based on the state information of the battery, and comprises:
and calculating the charging current of the battery according to the electric quantity stored by the battery and a preset electric quantity.
3. The fast charging method of claim 2, wherein obtaining the amount of power stored by the battery comprises:
and calculating the electric quantity stored by the battery according to the charging current and the charging time of the battery.
4. The fast charging method according to claim 2, wherein calculating the charging current of the battery according to the preset charge amount and the charge amount stored in the battery comprises:
calculating a difference value between the preset electric quantity and the electric quantity stored by the battery;
and acquiring the product of the difference value and a preset coefficient to be used as the charging current of the battery.
5. The method according to claim 4, wherein the preset charge is a rated charge of the battery, and the preset coefficient is a rated charge rate of the battery.
6. The fast charging method according to claim 1, wherein when the charging time of the current constant current charging phase reaches a preset charging time of the current constant current charging phase, switching to a next constant current charging phase.
7. The fast charging method according to claim 1 or 6, characterized in that when the charging voltage of the battery reaches a preset voltage, switching to the next constant current charging phase.
8. The rapid charging method according to claim 7, wherein the preset voltage is greater than or equal to a rated voltage of the battery.
9. A charging device, which is connected with an electronic device through a charging interface and then charges a battery of the electronic device through the charging interface, comprises a first control circuit and a first charging circuit,
the first control circuit is used for determining the charging current of the current constant-current charging stage and carrying out constant-current charging on the battery through the first charging circuit according to the determined charging current until the battery enters the next constant-current charging stage, wherein a plurality of constant-current charging stages in the charging process respectively correspond to a plurality of charging currents, the charging current of each constant-current charging stage is determined according to the state information of the battery, the electric quantity stored in the battery is obtained in the constant-current charging process, and the battery is stopped to be charged when the difference value between the electric quantity stored in the battery and the preset electric quantity is smaller than or equal to a preset threshold value.
10. The charging device of claim 9, wherein the first control circuit is further configured to calculate a charging current of the battery according to the amount of power stored in the battery and a preset amount of power during each constant current charging phase.
11. The charging device of claim 10, wherein the first control circuit is further configured to calculate the amount of power stored in the battery based on a charging current and a charging time of the battery.
12. A charging device according to claim 10 or 11, wherein said first control circuit is further configured to calculate a difference between said preset amount of power and a present amount of power stored in said battery, and obtain a product of said difference and a preset coefficient as a charging current of said battery.
13. The charging device of claim 12, wherein the predetermined voltage is a rated charge of the battery, and the predetermined coefficient is a rated charge rate of the battery.
14. The charging device of claim 9, wherein the first control circuit is further configured to switch to a next constant current charging phase when the charging time of the current constant current charging phase reaches a preset charging time of the current constant current charging phase.
15. A charging arrangement as claimed in claim 9 or 14, in which the first control circuit is further arranged to switch to the next constant current charging phase when the charging voltage of the battery reaches a predetermined voltage.
16. The charging device of claim 15, wherein the predetermined voltage is greater than or equal to a rated voltage of the battery.
17. An electronic device, wherein the electronic device communicates with a charging device through a charging interface after being connected with the charging device through the charging interface, the charging device charges a battery of the electronic device through the charging interface, the electronic device comprises a second control circuit and a second charging circuit, wherein,
the second control circuit is used for determining the charging current of the current constant-current charging stage and sending the determined charging current to the charging device, so that the charging device can perform constant-current charging on the battery through the second charging circuit according to the determined charging current until entering the next constant-current charging stage, wherein a plurality of constant-current charging stages in the charging process respectively correspond to a plurality of charging currents, and the charging current of each constant-current charging stage is determined according to the state information of the battery;
the second control circuit is further used for acquiring the electric quantity stored by the battery in the constant-current charging process, and controlling the charging device to stop charging the battery when the difference value between the electric quantity stored by the battery and the preset electric quantity is smaller than or equal to a preset threshold value.
18. The electronic device of claim 17, wherein the second control circuit is further configured to calculate a charging current of the battery according to an amount of power stored in the battery and a preset amount of power during each constant current charging phase.
19. The electronic device of claim 17 or 18, wherein the second control circuit is further configured to calculate the amount of power stored in the battery according to a charging current and a charging time of the battery.
20. The electronic device of claim 18, wherein the second control circuit is further configured to calculate a difference between the preset amount of power and the amount of power stored in the battery, and obtain a product of the difference and a preset coefficient as the charging current of the battery.
21. The electronic device of claim 20, wherein the preset charge is a rated charge of the battery, and the preset coefficient is a rated charge rate of the battery.
22. The electronic device of claim 17, wherein the second control circuit is further configured to switch to a next constant current charging phase when the charging time of the current constant current charging phase reaches a preset charging time of the current constant current charging phase.
23. The electronic device of claim 17 or 22, wherein the second control circuit is further configured to switch to a next constant current charging phase when the charging voltage of the battery reaches a preset voltage.
24. The electronic device of claim 23, wherein the predetermined voltage is greater than or equal to a rated voltage of a battery.
25. A charging system comprising a charging apparatus as claimed in any of claims 9-16, and an electronic device as claimed in any of claims 17-24.
26. A readable storage medium, having stored thereon a fast charging program of a battery, which when executed by a processor implements the fast charging method according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565737.0A CN112152271B (en) | 2019-06-27 | 2019-06-27 | Quick charging method, charging device, electronic equipment and charging system |
| PCT/CN2020/092288 WO2020259181A1 (en) | 2019-06-27 | 2020-05-26 | Quick charging method, charging apparatus, electronic device and charging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910565737.0A CN112152271B (en) | 2019-06-27 | 2019-06-27 | Quick charging method, charging device, electronic equipment and charging system |
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| CN114256915A (en) * | 2021-11-29 | 2022-03-29 | 三一汽车制造有限公司 | Battery charging method and device and operation machine |
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| CN113707960B (en) * | 2021-08-06 | 2024-01-26 | 湖南领湃达志科技股份有限公司 | Method for quickly charging lithium ion power battery |
| CN113954692B (en) * | 2021-09-07 | 2023-08-22 | 东风汽车集团股份有限公司 | Battery charging control method, device and equipment |
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| WO2020259181A1 (en) | 2020-12-30 |
| CN112152271B (en) | 2023-05-05 |
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