阅读说明：本技术 一种充电控制方法、装置及计算机存储介质 (charging control method, device and computer storage medium ) 是由 陈伟 于 2018-12-21 设计创作，主要内容包括：一种充电控制方法、装置及计算机存储介质,该方法应用于待充电设备,该方法包括：在待充电设备的充电过程中,对待充电设备内电池进行K个阶段的恒流充电；其中,K为大于或等于1的正整数(S301)；针对所述K个阶段中的每一个恒流充电阶段,分别按照该恒流充电阶段对应的预设电流对所述电池进行恒流充电,以将所述电池充电到该恒流充电阶段对应的预设电压；其中,第K个恒流充电阶段对应的预设电压为充电截止电压,所述充电截止电压大于所述电池的额定电压(S302)；当在第K个恒流充电阶段,检测到所述电池的电压达到所述充电截止电压时,停止为所述电池充电(S303)。(A charging control method, a device and a computer storage medium are applied to a device to be charged, the method comprises the steps of conducting constant current charging on a battery in the device to be charged in K stages in the charging process of the device to be charged, wherein K is a positive integer larger than or equal to 1 (S301), conducting constant current charging on the battery according to preset current corresponding to the constant current charging stage for each constant current charging stages in the K stages respectively to charge the battery to preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the K constant current charging stage is charging cut-off voltage which is larger than rated voltage of the battery (S302), and stopping charging the battery when the voltage of the battery reaches the charging cut-off voltage in the K constant current charging stage (S303).)

1, A charging control method, wherein the method is applied to a device to be charged, the method comprises:

in the charging process of the equipment to be charged, performing constant current charging on a battery in the equipment to be charged in K stages; wherein K is a positive integer greater than or equal to 1;

for every constant current charging stages in the K stages, respectively carrying out constant current charging on the battery according to the preset current corresponding to the constant current charging stage so as to charge the battery to the preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the K-th constant current charging stage is a charging cut-off voltage which is greater than the rated voltage of the battery;

and stopping charging the battery when detecting that the voltage of the battery reaches the charging cut-off voltage in the Kth constant current charging stage.

2. The method of claim 1, wherein the constant-current charging the battery according to the preset current corresponding to each constant-current charging phases in the K phases respectively to charge the battery to the preset voltage corresponding to the constant-current charging phase comprises:

aiming at the ith constant current charging stage in the first K-1 stages, performing constant current charging on the battery by using the ith preset current so as to charge the battery to the ith preset voltage; wherein i is a positive integer greater than or equal to 1 and less than or equal to K-1, and the (i + 1) th preset current is less than the (i) th preset current;

according to the Kth constant current charging stage, constant current charging is carried out on the battery at the Kth preset current, so that the battery is charged to the Kth preset voltage; the Kth preset current is smaller than the Kth-1 preset current, and the Kth preset voltage is the charging cut-off voltage.

3. The method of claim 2, wherein the ith preset voltage is greater than a rated voltage of the battery.

4. The method of claim 2, wherein for each constant current charging phases of the K phases, the method further comprises:

the voltage of the battery is detected every constant current charging phases.

5. The method of claim 4, wherein, for an ith constant current charging phase, after said detecting the voltage of the battery for every constant current charging phases, the method further comprises:

and when the voltage of the battery is detected to be equal to the ith preset voltage, controlling the equipment to be charged to enter an (i + 1) th constant current charging stage, and performing constant current charging on the battery by using the (i + 1) th preset current.

6. The method of claim 4, wherein, for an ith constant current charging phase, after said detecting the voltage of the battery for every constant current charging phases, the method further comprises:

when the voltage of the battery is detected to be equal to the ith preset voltage, performing constant-voltage charging on the battery based on the ith preset voltage;

and when the current of the battery is detected to be equal to the (i + 1) th preset current, controlling the equipment to be charged to enter the (i + 1) th constant current charging stage, and performing constant current charging on the battery by taking the (i + 1) th preset current as the battery.

7. The method of claim 6, wherein prior to said detecting that the current of the battery is equal to an i +1 th preset current, the method further comprises:

the current of the battery is detected every constant current charging phases.

8. The method of any of claims 1-7, wherein the charging mode of the device to be charged includes a wireless charging mode and a wired charging mode, the method further comprising:

and controlling the equipment to be charged to charge the battery according to a wireless charging mode or a wired charging mode by selecting the charging mode.

9. The method of any of claims 1-8 and , wherein the batteries comprise a single cell battery and a plurality of N cell batteries, wherein N is a positive integer greater than 1.

10, , wherein the charging control device is applied to a device to be charged, the charging control device includes a charging unit, a detection unit, and a control unit,

the charging unit is configured to perform constant current charging on a battery in the device to be charged in K stages in the charging process of the device to be charged; wherein K is a positive integer greater than or equal to 1;

the charging unit is further configured to perform constant current charging on the battery according to preset currents corresponding to the constant current charging stages respectively for every constant current charging stages in the K stages so as to charge the battery to preset voltages corresponding to the constant current charging stages, wherein the preset voltage corresponding to the K-th constant current charging stage is a charging cut-off voltage, and the charging cut-off voltage is greater than the rated voltage of the battery;

the control unit is configured to stop charging the battery when the detection unit detects that the voltage of the battery reaches the charge cut-off voltage in a Kth constant current charging stage.

11. The charge control device according to claim 10, wherein the charging unit is specifically configured to, for an ith constant current charging phase of the first K-1 phases, constant current charge the battery at an ith preset current to charge the battery to an ith preset voltage; wherein i is a positive integer greater than or equal to 1 and less than or equal to K-1, and the (i + 1) th preset current is less than the (i) th preset current; and performing constant current charging on the battery at a Kth preset current aiming at a Kth constant current charging stage so as to charge the battery to a Kth preset voltage; the Kth preset current is smaller than the Kth-1 preset current, and the Kth preset voltage is the charging cut-off voltage.

12. The charge control device according to claim 11, wherein the ith preset voltage is greater than a rated voltage of the battery.

13. The charge control device according to claim 11, wherein the detection unit is specifically configured to detect the voltage of the battery for every constant-current charging phases.

14. The charging control device according to claim 13, wherein, for an ith constant-current charging phase, the control unit is further configured to control the device to be charged to enter an (i + 1) th constant-current charging phase when detecting that the voltage of the battery is equal to an ith preset voltage, and perform constant-current charging on the battery at an (i + 1) th preset current.

15. The charge control device according to claim 13, wherein the charging unit is further configured to, for an ith constant-current charging phase, perform constant-voltage charging on the battery based on an ith preset voltage when detecting that the voltage of the battery is equal to the ith preset voltage;

the control unit is further configured to control the device to be charged to enter an (i + 1) th constant current charging stage when the current of the battery is detected to be equal to an (i + 1) th preset current, and perform constant current charging on the battery by using the (i + 1) th preset current.

16. The charge control device of claim 15, wherein the detection unit is further configured to detect the current of the battery for every constant current charging phases.

17. The charging control apparatus of any of claims 10-16, wherein the charging mode of the device to be charged comprises a wireless charging mode and a wired charging mode, and the control unit is further configured to control the device to be charged to charge the battery in the wireless charging mode or the wired charging mode by selecting the charging mode.

18. The charge control device of any one of claims 10 to 17 to , wherein the batteries comprise a single cell battery and a plurality N of cells, wherein N is a positive integer greater than 1.

19, kinds of charging control device, wherein the charging control device comprises a memory and a processor;

the memory for storing a computer program operable on the processor;

the processor, when executing the computer program, is adapted to perform the steps of the method of any of claims 1-9.

20, computer storage media, wherein the computer storage media stores a charging control program that when executed by at least processors implements the steps of the method of any of claims 1-9 to .

21, kinds of equipment to be charged, wherein, the equipment to be charged at least comprises the charging control device as claimed in any of claims 10 to 19.

Technical Field

The embodiment of the application relates to the technical field of charging, in particular to charging control methods and devices and a computer storage medium.

Background

At present, the charging process of electronic equipment can be divided into trickle, constant-current and constant-voltage charging stages. According to the existing charging process, after the voltage of the battery is detected to reach a constant-current charging voltage point, constant-voltage charging is carried out and is maintained at a constant-voltage charging stage, and charging is finished until a charging cut-off condition is met; and the charging voltage of the whole constant-voltage charging stage does not exceed the rated voltage of the battery. Thus, since the constant voltage charging time is long, the entire charging time is excessively long, time is wasted, and the charging speed is reduced.

Disclosure of Invention

In view of the above, it is desirable to provide charging control methods, apparatuses, and computer storage media, which eliminate the constant voltage charging process, thereby saving the charging time and increasing the charging speed.

The technical scheme of the embodiment of the application can be realized as follows:

, the embodiment of the application provides charging control methods, the method is applied to a device to be charged, the method includes:

in the charging process of the equipment to be charged, performing constant current charging on a battery in the equipment to be charged in K stages; wherein K is a positive integer greater than or equal to 1;

for every constant current charging stages in the K stages, respectively carrying out constant current charging on the battery according to the preset current corresponding to the constant current charging stage so as to charge the battery to the preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the K-th constant current charging stage is a charging cut-off voltage which is greater than the rated voltage of the battery;

and stopping charging the battery when detecting that the voltage of the battery reaches the charging cut-off voltage in the Kth constant current charging stage.

In the foregoing scheme, the performing, for each constant current charging stages in the K stages, constant current charging on the battery according to a preset current corresponding to the constant current charging stage, so as to charge the battery to a preset voltage corresponding to the constant current charging stage includes:

aiming at the ith constant current charging stage in the first K-1 stages, performing constant current charging on the battery by using the ith preset current so as to charge the battery to the ith preset voltage; wherein i is a positive integer greater than or equal to 1 and less than or equal to K-1, and the (i + 1) th preset current is less than the (i) th preset current;

according to the Kth constant current charging stage, constant current charging is carried out on the battery at the Kth preset current, so that the battery is charged to the Kth preset voltage; the Kth preset current is smaller than the Kth-1 preset current, and the Kth preset voltage is the charging cut-off voltage.

In the above scheme, the ith preset voltage is greater than the rated voltage of the battery.

In the above scheme, for each constant current charging phases of the K phases, the method further includes:

the voltage of the battery is detected every constant current charging phases.

In the above scheme, after the detecting the voltage of the battery in every constant current charging phases for the ith constant current charging phase, the method further includes:

and when the voltage of the battery is detected to be equal to the ith preset voltage, controlling the equipment to be charged to enter an (i + 1) th constant current charging stage, and performing constant current charging on the battery by using the (i + 1) th preset current.

In the above scheme, after the detecting the voltage of the battery in every constant current charging phases for the ith constant current charging phase, the method further includes:

when the voltage of the battery is detected to be equal to the ith preset voltage, performing constant-voltage charging on the battery based on the ith preset voltage;

and when the current of the battery is detected to be equal to the (i + 1) th preset current, controlling the equipment to be charged to enter the (i + 1) th constant current charging stage, and performing constant current charging on the battery by taking the (i + 1) th preset current as the battery.

In the above scheme, before the detecting that the current of the battery is equal to the (i + 1) th preset current, the method further includes:

the current of the battery is detected every constant current charging phases.

In the above solution, the charging mode of the device to be charged includes a wireless charging mode and a wired charging mode, and the method further includes:

and controlling the equipment to be charged to charge the battery according to a wireless charging mode or a wired charging mode by selecting the charging mode.

In the above scheme, the battery includes a battery with a single cell structure and batteries with N cell structures; wherein N is a positive integer greater than 1.

In a second aspect, the present application provides kinds of charging control devices, where the charging control devices are applied to a device to be charged, the charging control devices include a charging unit, a detection unit, and a control unit,

the charging unit is configured to perform constant current charging on a battery in the device to be charged in K stages in the charging process of the device to be charged; wherein K is a positive integer greater than or equal to 1;

the charging unit is further configured to perform constant current charging on the battery according to preset currents corresponding to the constant current charging stages respectively for every constant current charging stages in the K stages so as to charge the battery to preset voltages corresponding to the constant current charging stages, wherein the preset voltage corresponding to the K-th constant current charging stage is a charging cut-off voltage, and the charging cut-off voltage is greater than the rated voltage of the battery;

the control unit is configured to stop charging the battery when the detection unit detects that the voltage of the battery reaches the charge cut-off voltage in a Kth constant current charging stage.

In the above scheme, the charging unit is specifically configured to perform constant current charging on the battery at an ith preset current for an ith constant current charging stage in the first K-1 stages, so as to charge the battery to an ith preset voltage; wherein i is a positive integer greater than or equal to 1 and less than or equal to K-1, and the (i + 1) th preset current is less than the (i) th preset current; and performing constant current charging on the battery at a Kth preset current aiming at a Kth constant current charging stage so as to charge the battery to a Kth preset voltage; the Kth preset current is smaller than the Kth-1 preset current, and the Kth preset voltage is the charging cut-off voltage.

In the above scheme, the ith preset voltage is greater than the rated voltage of the battery.

In the above scheme, the detection unit is specifically configured to detect the voltage of the battery in every constant current charging phases.

In the foregoing scheme, for the ith constant current charging stage, the control unit is further configured to control the device to be charged to enter an (i + 1) th constant current charging stage when it is detected that the voltage of the battery is equal to an ith preset voltage, and perform constant current charging on the battery by using an (i + 1) th preset current.

In the above solution, for the ith constant current charging phase, the charging unit is further configured to perform constant voltage charging on the battery based on the ith preset voltage when detecting that the voltage of the battery is equal to the ith preset voltage;

the control unit is further configured to control the device to be charged to enter an (i + 1) th constant current charging stage when the current of the battery is detected to be equal to an (i + 1) th preset current, and perform constant current charging on the battery by using the (i + 1) th preset current.

In the above scheme, the detection unit is further configured to detect the current of the battery in every constant current charging phases.

In the above scheme, the charging mode of the device to be charged includes a wireless charging mode and a wired charging mode, and the control unit is further configured to control the device to be charged to charge the battery according to the wireless charging mode or the wired charging mode by selecting the charging mode.

In the above scheme, the battery includes a battery with a single cell structure and batteries with N cell structures; wherein N is a positive integer greater than 1.

In a third aspect, an embodiment of the present application provides kinds of charging control devices, including a memory and a processor;

the memory for storing a computer program operable on the processor;

the processor, when executing the computer program, performing the steps of the method of any of of aspect .

In a fourth aspect, embodiments of the present application provide computer storage media storing a charging control program that, when executed by at least processors, performs the steps of the method of any of aspect .

In a fifth aspect, the present application provides kinds of devices to be charged, where the devices to be charged include at least the charging control apparatus described in any of the second aspect, or the charging control apparatus described in the third aspect.

The embodiment of the application provides charging control methods, devices and computer storage media, the method is applied to a device to be charged, in the charging process of the device to be charged, constant current charging is carried out on a battery in the device to be charged in K stages, K is a positive integer larger than or equal to 1, for each constant current charging stages in the K stages, the battery is subjected to constant current charging according to preset current corresponding to the constant current charging stage, the battery is charged to preset voltage corresponding to the constant current charging stage, the preset voltage corresponding to the K constant current charging stage is charging cut-off voltage, the charging cut-off voltage is larger than rated voltage of the battery, when the K constant current charging stage detects that the voltage of the battery reaches the charging cut-off voltage, the battery is stopped to be charged, the multi-stage constant current charging is adopted in the charging process, and the battery is stopped to be charged after the K constant current charging stage, namely, the charging stage is cancelled, so that the purposes of saving charging time and increasing charging speed can be achieved.

Drawings

Fig. 1 is a schematic structural diagram of stepped charging techniques in a related art scheme;

fig. 2 is a schematic structural diagram of kinds of devices to be charged according to an embodiment of the present disclosure;

fig. 3 is a schematic flowchart of charge control methods according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of charging control techniques according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another charge control techniques provided in the present embodiment;

fig. 6 is a schematic structural diagram of types of charging control devices according to an embodiment of the present application;

fig. 7 is a schematic diagram of a specific hardware structure of types of charging control devices according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another kinds of devices to be charged according to an embodiment of the present application.

Detailed Description

So that the manner in which the features and elements of the present embodiments can be understood in detail, a more particular description of the embodiments, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.

However, when the charging cable is lost or the user wants to have distance between the device to be charged and the charging device, the wireless charging technology is derived from wireless power transmission technology, and according to the difference of wireless charging principle, the wireless charging mode is mainly divided into electromagnetic induction type (or magnetic coupling type), radio wave type and electromagnetic resonance type, and so on.

However, the Constant Voltage charging is charging stages with longer charging time, and if the Constant Voltage charging time in the charging process can be effectively reduced, the charging time of the battery in the device to be charged will be greatly increased, which is a key problem of Current research and a technical problem to be solved in the embodiment of the present application.

In the related technical scheme, the traditional charging process is to charge to a limit voltage by adopting a constant current charging current, and the limit voltage does not exceed the rated voltage of a battery in the device to be charged; then, constant voltage charging is carried out under the limit voltage, and the charging voltage does not exceed the rated voltage of the battery in the whole charging process. The charging time of the whole charging process is prolonged due to the long constant voltage charging time.

The conventional step charging technology still maintains a constant-voltage charging stage, and the charging principle is that in the charging process of a device to be charged, constant-current charging is firstly carried out by using a th charging current, the battery is charged to a th limit voltage, then the th charging current is reduced to a second charging current, then the constant-current charging is carried out by using the second charging current, the battery is charged to a second limit voltage, the charging current is gradually reduced, the steps are repeated, when the constant-current charging is carried out by using an nth charging current, the battery is charged to an nth limit voltage (wherein the nth limit voltage does not exceed the rated voltage of the battery), finally, constant-voltage charging is carried out by using the nth limit voltage until the charging current is reduced to the cutoff current of the battery, and n is a positive integer greater than or equal to 1.

Referring to fig. 1, which shows a schematic structural diagram of stepwise charging techniques in the related art, as shown in fig. 1, the abscissa represents time (T) and the ordinate represents charging current (I), first, th charging current I is applied₁Constant current charging is carried out for th charging time t₁Thereafter, the battery is charged to the th limit voltage V₁(ii) a Then charging the batteryCurrent I charged by ₁Reduced to a second charging current I₂Then, the second charging current I is used₂Constant current charging is carried out for a second charging time t₂Thereafter, the battery is charged to a second limit voltage V₂(ii) a Gradually reducing the charging current, and repeating the steps; when the n-th charging current I is used_nConstant current charging is carried out to charge the battery to the nth limit voltage V_n(i.e. charge cut-off to voltage V)_end) Then, limiting the voltage V by the nth_nPerforming constant voltage charging until the charging current drops to the current I_end(ii) a Here the nth limit voltage V_nNo more than the rated voltage of the battery.

In the related technical scheme, although the step charging technology is provided, a constant voltage charging stage is still kept in the charging process, and the charging voltage of the whole constant voltage charging stage does not exceed the rated voltage of the battery, so that the charging time of the equipment to be charged is reduced, and a lifting space for steps is provided.

Based on this, the embodiment of the application provides charging control methods, which are applied to a device to be charged, in the charging process of the device to be charged, firstly, a battery in the device to be charged is subjected to constant current charging in K stages, wherein K is a positive integer greater than or equal to 1, for each constant current charging stages in the K stages, the battery is subjected to constant current charging according to preset current corresponding to the constant current charging stage, so as to be charged to preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the K constant current charging stage is charging cut-off voltage, and the charging cut-off voltage is greater than the rated voltage of the battery, and finally, when the voltage of the battery reaches the charging cut-off voltage in the K constant current charging stage, the charging of the battery is stopped.

It should be noted that the device to be charged may refer to a terminal, which may include, but is not limited to, a device configured to receive/transmit communication signals via a wired Line connection (e.g., via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a direct cable connection, and/or another data connection/Network) and/or via a wireless interface (e.g., a Digital television Network, a satellite Network, an Amplitude Modulation-Frequency Modulation (AM-FM) transmitter, such as a handheld Digital Video broadcast (DVB-H) Network, a wireless interface for a cellular Network, a Wireless Local Area Network (WLAN), and/or another communication terminal, wherein the terminal configured to communicate via a wireless interface may be referred to as a "wireless terminal" and may be referred to as a mobile terminal, a "or a Portable terminal, and may also include, but is not limited to, a Portable electronic device, a Portable computer, and so forth.

Referring to fig. 2, which shows a schematic diagram of the constituent structures of types of devices to be charged provided in the embodiment of the present application, as shown in fig. 2, the device to be charged 20 includes a wireless charging receiving unit 201, a wired charging connection unit 202, a charging management unit 203, a control unit 204, a detection unit 205, and a battery 206. it will be understood by those skilled in the art that the constituent structure of the device to be charged 20 shown in fig. 2 does not constitute a structural limitation of the device to be charged, and the device to be charged may include more or fewer components than those shown, or may combine some components, or may arrange different components.

It should be noted that, in embodiments, the wireless charging receiving unit 201 and the wired charging connecting unit 202 may not be included in the device to be charged 20 at the same time, when the device to be charged 20 only supports the wireless charging mode, only the wireless charging receiving unit 201 may be included in the device to be charged 20, when the device to be charged 20 only supports the wired charging mode, only the wired charging connecting unit 202 may be included in the device to be charged 20, and when the device to be charged 20 supports both the wireless charging mode and the wired charging mode, both the wireless charging receiving unit 201 and the wired charging connecting unit 202 may be included in the device to be charged 20, which is not limited in this application.

It should be further noted that an external wired charging device (such as an adapter) may establish a wired connection with the device to be charged 20 through a charging cable; specifically, an external wired charging device is connected to the wired charging connection unit 202 through a charging cable, and the two communicate with each other through a communication charging handshake protocol. An external wireless charging device (such as a wireless charging base) can establish a wireless connection with the device to be charged 20 through electromagnetic induction; specifically, the external wireless charging device establishes a wireless connection with the wireless charging receiving unit 201 through electromagnetic induction by the wireless charging transmitting unit inside the external wireless charging device, so as to perform wireless communication.

In , the wireless communication mode includes but is not limited to bluetooth communication, wireless fidelity (WiFi) communication, short-range wireless communication based on high carrier frequency, optical communication, ultrasonic communication, ultra-wideband communication, mobile communication, etc.

In , the wireless charging receiving unit 201 comprises a receiving coil and an AC/DC converting unit for converting the wireless charging signal transmitted by the wireless charging device into an alternating current via the receiving coil, and rectifying and/or filtering the alternating current via the AC/DC converting unit to convert the alternating current into a stable direct current for charging the battery 206.

In , the wired charging connection unit 202 includes a USB interface for connecting to a wired charging device and receiving dc voltage and dc current output by the wired charging device to provide the battery 206 with charging.

In , the charging management unit 203 is used to boost or buck the dc power output by the wireless charging receiving unit 201 to obtain th output voltage and th output current, wherein the th output voltage and the th output current meet the charging requirement of the battery 206 and can be directly loaded to the battery 206 for charging.

In , the charging management unit 203 is further configured to boost or buck the dc power output by the wired charging connection unit 202 to obtain a second output voltage and a second output current, where the second output voltage and the second output current meet the charging requirement of the battery 206 and can be directly applied to the battery 206 for charging.

In embodiments, the charging management unit 203 may include a voltage conversion unit, and the voltage conversion unit may be a Boost (Boost) conversion circuit, a Buck (Buck) conversion circuit, a Buck-Boost (Buck-Boost) conversion circuit, an LDO voltage regulator circuit, a Charge Pump (Charge Pump) circuit, or even a direct Charge circuit, and the like, and the embodiments of the present application are not limited specifically.

In , the control unit 204 is used to control the conduction of the path between the charging management unit 203 and the wireless charging receiving unit 201 when the wireless charging mode is determined, and is also used to control the conduction of the path between the charging management unit 203 and the wired charging connection unit 202 when the wired charging mode is determined.

In , the control Unit 204 may be a separate Micro Controller Unit (MCU) in the device 20 to be charged, so as to improve the reliability of the control, in , the control Unit 204 may also be an Application Processor (AP) in the device 20 to be charged, so as to save the hardware cost.

A detection unit 205 for detecting a battery voltage and/or a battery current of the battery 206. The battery voltage and the battery current may refer to a voltage value and/or a current value between the charge management unit 203 and the battery 206, that is, an output voltage and/or an output current of the charge management unit 203.

In , the detection unit 205 may include a voltage detection unit and a current detection unit, the voltage detection unit may be configured to sample the battery voltage and send the sampled battery voltage value to the control unit 204. in embodiments, the voltage detection unit may sample the battery voltage by serially dividing the voltage value, the current detection unit may be configured to sample the battery current and send the sampled current value to the control unit 204. in embodiments, the current detection unit may sample and detect the battery current through a current sensing resistor and a current sensing meter.

The control unit 204 is further configured to communicate with the wireless charging device, and feed back the voltage value and/or the current value detected by the detection unit 205 to the wireless charging device. Thus, the wireless charging device may adjust the transmit power of the wireless charging device based on the voltage and/or current values of the feedback such that the battery voltage and/or current values match the desired charging voltage and/or current values of the battery 206.

Based on the device to be charged shown in fig. 2, the following describes embodiments of the present application in detail with reference to the accompanying drawings.

Referring to fig. 3, it shows charging control methods provided by the embodiments of the present application, where the methods are applied to a device to be charged, and the methods may include:

s301: in the charging process of the equipment to be charged, performing constant current charging on a battery in the equipment to be charged in K stages; wherein K is a positive integer greater than or equal to 1;

s302, for every constant current charging stages in the K stages, respectively carrying out constant current charging on the battery according to preset current corresponding to the constant current charging stage so as to charge the battery to preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the K-th constant current charging stage is charging cut-off voltage which is greater than the rated voltage of the battery;

s303: and stopping charging the battery when detecting that the voltage of the battery reaches the charging cut-off voltage in the Kth constant current charging stage.

It should be noted that the charging process of the device to be charged may be divided into a plurality of constant current charging stages, and the number of the constant current charging stages is denoted by K. Wherein K is a positive integer greater than or equal to 1, for example, K may be set to 5; however, in practical applications, K is specifically set according to practical situations (such as the system of the battery and the materials used), and the embodiments of the present application are not particularly limited.

In this way, in the last constant-current charging stages, if the detected voltage of the battery is equal to the charging cut-off voltage of the battery, the charging of the battery is directly stopped.

In the embodiment of the application, in the charging process of the device to be charged, firstly, constant current charging is carried out on a battery in the device to be charged in K stages, wherein K is a positive integer larger than or equal to 1, for each constant current charging stages in the K stages, the battery is subjected to constant current charging according to preset current corresponding to the constant current charging stage so as to be charged to preset voltage corresponding to the constant current charging stage, the preset voltage corresponding to the K constant current charging stage is charging cut-off voltage, the charging cut-off voltage is larger than rated voltage of the battery, finally, when the voltage of the battery is detected to reach the charging cut-off voltage in the K constant current charging stage, the battery is stopped to be charged directly, and the charging process is cancelled in the multi-stage constant current charging, and in the last constant current charging stages of the multi-stage, the battery is stopped to be charged directly, namely, the constant voltage charging stage is cancelled, so that the charging time is greatly saved, and the charging speed is increased.

In , in the embodiments, for each constant current charging phases of the K phases, the performing constant current charging on the battery according to the preset current corresponding to the constant current charging phase, so as to charge the battery to the preset voltage corresponding to the constant current charging phase includes:

aiming at the ith constant current charging stage in the first K-1 stages, performing constant current charging on the battery by using the ith preset current so as to charge the battery to the ith preset voltage; wherein i is a positive integer greater than or equal to 1 and less than or equal to K-1, and the (i + 1) th preset current is less than the (i) th preset current;

according to the Kth constant current charging stage, constant current charging is carried out on the battery at the Kth preset current, so that the battery is charged to the Kth preset voltage; the Kth preset current is smaller than the Kth-1 preset current, and the Kth preset voltage is the charging cut-off voltage.

Further , in embodiments, for each constant current charging phases of the K phases, the method further comprises:

the voltage of the battery is detected every constant current charging phases.

In the embodiment of the present application, the detecting unit may be a resistor (such as a current sensing resistor), a magnetic device (such as a current transformer, a voltage transformer, a rogowski coil, a hall sensor), or a transistor (such as a drain-to-source on resistance (rds (on)), a ratio equation), and the embodiment of the present application is not particularly limited.

It should be noted that, for every constant-current charging stages (for example, the ith constant-current charging stage), the ith preset current and the ith preset voltage are respectively used for representing the current value and the voltage value preset by the device to be charged for the ith constant-current charging stage, when the charging is stopped, the charging voltage falls back when the charging is performed under the constant current of a large current, so that the charging current is reduced along with the increase of i, that is, the ith +1 preset current is smaller than the ith preset current, for example, it is assumed that K is 5, for the 1 st constant-current charging stage, the th preset current is X (ampere), the th preset voltage is Y1 (volt), for the 2 nd constant-current charging stage, the second preset current is X- a1, the second preset voltage is Y2 (volt), for the 3 rd constant-current charging stage, the third preset current is X- a2- a 53, the third preset voltage is Y3 (v), for the third preset current is X-2 a, the actual preset voltage is 2a2, the voltage is specifically set according to the current of the current preset 2-2 a, the current is specifically set by the actual 2a 2-2 a2, the current system, the fifth preset voltage is not specifically set by the current of the current system, 2-2, the current system, 2, the current is specifically set 2a2, the current is specifically set 2, the current system, the fifth preset voltage of the current system, the current is specifically set 2, for example, the current system of the current system of the.

In the embodiment of the present application, the th predetermined current X may be a value greater than 3, for example, 4A. the second to fifth predetermined currents may be gradually decreased, that is, the current in the rear stage is less than the current in the front stage, for example, △ A1, △ A2, △ A3 and △ A4 may be between 0.5 and 1. in the embodiments of , the th predetermined voltage Y1, the second predetermined voltage Y2, the third predetermined voltage Y3, the fourth predetermined voltage Y4 and the fifth predetermined voltage Y2 may be the rated voltage of the battery or greater than the rated voltage of the battery₀Y1-Y5 may then be equal to V₀And + Δ V, Δ V can be between 0.05 and 0.5.

In embodiments, for K constant current charging stages, the preset voltages corresponding to each constant current charging stages may be the same or different, and the preset voltage corresponding to each constant current charging stages may be greater than the rated voltage of the battery.

Referring to fig. 4, which shows a schematic structural diagram of charging control techniques provided by the embodiment of the present application, as shown in fig. 4, the abscissa represents time (T) and the ordinate represents charging current (I), it is assumed that a device to be charged has K constant current charging phases, first, a1 st constant current charging phase, and a preset current I₁Constant current charging is carried out for th charging time t₁Then, the battery is charged to th preset voltage V₁Then, the charging current is preset to be current I from th₁Reduced to a second predetermined current I₂Entering the 2 nd constant current charging stage and then using the second preset current I₂Constant current charging is carried out for a second charging time t₂Then, the battery is charged to a second preset voltage V₂(ii) a Gradually reducing the charging current, and repeating the steps; if the charging current is reduced to the ith preset current I_iThen, the ith constant current charging stage is entered to preset the current I at the ith_iConstant current charging is carried out for the ith charging time t_iThen, the battery is charged to the ith preset voltage V_iWhen the last constant current charging stages, i.e. the Kth constant current charging stage, are entered, the Kth preset current I is used_KCharging the battery to the Kth preset voltage V by constant current charging_K(i.e. charge cut-off to voltage V)_end) Thereafter, the charging of the battery may be stopped.

In , the ith preset voltage is greater than the rated voltage of the battery.

In the embodiment of the present application, the ith preset voltage may be greater than the rated voltage of the battery to perform overvoltage charging on the battery, so as to compress the charging time to the maximum extent and reduce the duration of constant voltage charging, thereby saving the charging time to the maximum extent and improving the charging efficiency compared with the related art.

In embodiments, the ith preset voltage may be set to be a sum of a rated voltage of the battery and a preset voltage difference, where Δ V may be 0.05V or 0.5V, may be, in general, Δ V between 0.05V and 0.5V, and in practical applications, the ith preset voltage may be specifically set according to practical situations, and the embodiments of the present application are not limited specifically.

In , for the ith constant current charging phase, after the detecting the voltage of the battery for every constant current charging phases, the method further comprises:

and when the voltage of the battery is detected to be equal to the ith preset voltage, controlling the equipment to be charged to enter an (i + 1) th constant current charging stage, and performing constant current charging on the battery by using the (i + 1) th preset current.

It should be noted that, in an ith constant current charging stage, a battery in the device to be charged is subjected to constant current charging at an ith preset current, so that the battery is charged to an ith preset voltage; and if the detected voltage of the battery is equal to the ith preset voltage, the ith constant current charging stage is finished, the ith +1 constant current charging stage is started, and then the battery is subjected to constant current charging by using the ith +1 preset current. In this way, for the (i + 1) th constant current charging stage, the battery in the device to be charged is subjected to constant current charging by using the (i + 1) th preset current so as to charge the battery to the (i + 1) th preset voltage; repeating the steps, if the voltage of the battery is detected to be equal to the K-1 preset voltage, indicating that the K-1 constant current charging stage is finished, entering the K constant current charging stage at the moment, and then performing constant current charging on the battery by using the K preset current; in the Kth constant current charging stage, constant current charging is carried out on the battery in the equipment to be charged by using the Kth preset current so as to charge the battery to the Kth preset voltage (namely the charging cut-off voltage of the battery); and when the voltage of the battery is detected to be equal to the Kth preset voltage, the battery is stopped being charged.

In , for the ith constant current charging phase, after the detecting the voltage of the battery for every constant current charging phases, the method further comprises:

when the voltage of the battery is detected to be equal to the ith preset voltage, performing constant-voltage charging on the battery based on the ith preset voltage;

and when the current of the battery is detected to be equal to the (i + 1) th preset current, controlling the equipment to be charged to enter the (i + 1) th constant current charging stage, and performing constant current charging on the battery by taking the (i + 1) th preset current as the battery.

, in embodiments, before the detecting that the current of the battery is equal to the i +1 th preset current, the method further comprises:

the current of the battery is detected every constant current charging phases.

It should be noted that, for the divided constant current charging stages, every constant current charging stages can be connected with the next constant current charging stages through constant voltage charging, so as to avoid sudden reduction of charging current, and since the sudden change of current can impact the material of the battery to a certain extent at , the battery is easily damaged, and the durability of the battery is reduced, thereby shortening the service life of the battery, therefore, the connection between the ith constant current charging stage and the (i + 1) constant current charging stage can be realized through constant voltage charging, which not only avoids sudden change of charging current, but also can achieve the purposes of saving charging time and increasing charging speed by steps.

Referring to fig. 5, which shows a schematic structural diagram of another charging control techniques provided by the embodiment of the present application, as shown in fig. 5, the abscissa represents time (T) and the ordinate represents charging current (I), it is assumed that a device to be charged has K constant current charging phases, first, the 1 st constant current charging phase, and preset current I ₁Constant current charging is carried out, and the battery is charged to th preset voltage V₁Then, the voltage V is preset at th₁Charging the battery at constant voltage for t₁Then, when the current of the battery is detected to be equal to the second preset current I₂Then, the equipment to be charged enters a2 nd constant current charging stage; then with a second preset current I₂Charging the battery to a second preset voltage V by constant current charging₂Then, a second preset voltage V is applied₂Charging the battery at constant voltage for a second charging time t₂Then, when the current of the battery is detected to be equal to the third preset current I₃Then, the equipment to be charged enters a3 rd constant current charging stage; repeating the steps, and when the equipment to be charged enters the ith constant current charging stage, presetting the current I according to the ith_iConstant current charging is carried out to charge the batteryElectric to ith preset voltage V_iThen, the ith preset voltage V is used_iCharging the battery at constant voltage for the ith charging time t_iThen, when the current of the battery is detected to be equal to the (I + 1) th preset current I_i+1When the charging device enters the (I + 1) th constant current charging stage, when the charging device enters the last constant current charging stages, namely the charging device enters the Kth constant current charging stage, the current I is preset according to the Kth_KPerforming constant current charging, when the voltage of the battery is detected to be equal to the Kth preset voltage V_K(i.e. the charging of the battery is cut off to a voltage V_end) Then, the charging of the battery can be stopped; the charging process cancels a constant voltage charging stage, thereby achieving the purposes of saving charging time and improving charging speed.

In , the charging mode of the device to be charged includes a wireless charging mode and a wired charging mode, and the method further includes:

and controlling the equipment to be charged to charge the battery according to a wireless charging mode or a wired charging mode by selecting the charging mode.

It should be noted that the charging control method in the embodiment of the present application may be applied to a wireless charging mode of a device to be charged, and may also be applied to a wired charging mode of the device to be charged. Through the selection of the charging mode, the device to be charged can charge the battery according to a wireless charging mode or a wired charging mode; and in the charging process, multi-stage constant current charging is adopted, and a constant voltage charging stage is cancelled, so that the purposes of saving charging time and improving charging speed can be achieved.

In , the battery includes a battery with a single cell structure and a battery with N cell structures, where N is a positive integer greater than 1.

It should be noted that, when the battery is a plurality of battery cells, in the above charging control method, it is necessary to monitor whether the voltages of each battery cells all reach the preset voltage corresponding to the current constant-current charging stage, when the voltages of any battery cells reach the preset voltage corresponding to the current constant-current charging stage, the next adjacent constant-current charging stages need to be entered, or in embodiments, the charging path corresponding to the battery cell that has reached the preset voltage corresponding to the current constant-current charging stage may be disconnected, and the charging operation on the battery cell that does not reach the preset voltage corresponding to the current constant-current charging stage may be continued.

The embodiment provides charging control methods, which are applied to a device to be charged, and the method comprises the steps of conducting constant current charging on a battery in the device to be charged in K stages in the charging process of the device to be charged, wherein K is a positive integer larger than or equal to 1, conducting constant current charging on the battery according to preset currents corresponding to the constant current charging stages respectively for every constant current charging stages in the K stages so as to charge the battery to preset voltages corresponding to the constant current charging stages, wherein the preset voltage corresponding to the K constant current charging stage is a charging cut-off voltage which is larger than the rated voltage of the battery, stopping charging the battery when the voltage of the battery reaches the charging cut-off voltage in the K constant current charging stage, adopting multi-stage constant current charging in the charging process, and canceling a constant voltage charging stage, so that the charging time is greatly saved, and the charging speed is improved.

Based on the same inventive concept as the aforementioned technical solution shown in fig. 3, referring to fig. 6, it shows that types of charging control devices 60 provided in the embodiments of the present application may include a charging unit 601, a detecting unit 602, and a control unit 603, wherein,

the charging unit 601 is configured to perform constant current charging on a battery in the device to be charged in K stages in a charging process of the device to be charged; wherein K is a positive integer greater than or equal to 1;

the charging unit 601 is further configured to perform constant current charging on the battery according to preset currents corresponding to the constant current charging stages respectively for every constant current charging stages in the K stages so as to charge the battery to a preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the K-th constant current charging stage is a charging cut-off voltage, and the charging cut-off voltage is greater than a rated voltage of the battery;

the control unit 603 is configured to stop charging the battery when the detection unit 602 detects that the voltage of the battery reaches the charge cut-off voltage in the kth constant current charging phase.

In the above solution, the charging unit 601 is specifically configured to perform constant current charging on the battery at an ith preset current for an ith constant current charging stage in the first K-1 stages, so as to charge the battery to an ith preset voltage; wherein i is a positive integer greater than or equal to 1 and less than or equal to K-1, and the (i + 1) th preset current is less than the (i) th preset current; and performing constant current charging on the battery at a Kth preset current aiming at a Kth constant current charging stage so as to charge the battery to a Kth preset voltage; the Kth preset current is smaller than the Kth-1 preset current, and the Kth preset voltage is the charging cut-off voltage.

In the above scheme, the ith preset voltage is greater than the rated voltage of the battery.

In the above solution, the detecting unit 602 is specifically configured to detect the voltage of the battery in every constant current charging phases.

In the foregoing solution, for the ith constant current charging stage, the control unit 603 is further configured to control the device to be charged to enter an (i + 1) th constant current charging stage when it is detected that the voltage of the battery is equal to an ith preset voltage, and perform constant current charging on the battery by using an (i + 1) th preset current.

In the above solution, for the ith constant current charging phase, the charging unit 601 is further configured to perform constant voltage charging on the battery based on the ith preset voltage when detecting that the voltage of the battery is equal to the ith preset voltage;

the control unit 603 is further configured to, when it is detected that the current of the battery is equal to an i +1 th preset current, control the device to be charged to enter an i +1 th constant current charging stage, and perform constant current charging on the battery by using the i +1 th preset current.

In the above solution, the detecting unit 602 is further configured to detect the current of the battery in every constant current charging phases.

In the above scheme, the charging mode of the device to be charged includes a wireless charging mode and a wired charging mode, and the control unit 603 is further configured to control the device to be charged to charge the battery according to the wireless charging mode or the wired charging mode by selecting the charging mode.

In the above scheme, the battery includes a battery with a single cell structure and batteries with N cell structures; wherein N is a positive integer greater than 1.

It should be understood that, in this embodiment, a "unit" may be a part of a circuit, a part of a processor, a part of a program, or software, etc., and may also be a module, or may be non-modular, and in this embodiment, each component may be integrated into processing units, or each unit may exist alone physically, or two or more units may be integrated into units.

If the integrated unit is implemented in the form of a software functional module and is not sold or used as an independent product, the integrated unit may be stored in computer-readable storage media, based on the understanding, a part of the technical solution of the present embodiment or all or part of the technical solution may be embodied in the form of a software product, the computer software product is stored in storage media, and includes several instructions to make computer devices (which may be personal computers, servers, or network devices, etc.) or processors (processors) execute all or part of the steps of the method described in the present embodiment.

Accordingly, the present embodiment provides computer storage media storing a charging control program that when executed by at least processors implement the steps of the method described in the foregoing solution illustrated in fig. 3.

Based on the above-mentioned components of the charging control device 60 and the computer storage medium, referring to fig. 7, it shows a specific hardware structure example of the charging control device 60 provided in the embodiment of the present application, which may include a network interface 701, a memory 702 and a processor 703, each component is coupled at through a bus system 704, it can be understood that the bus system 704 is used to implement connection communication between these components, the bus system 704 includes a power bus, a control bus and a status signal bus in addition to a data bus, but for clarity of explanation, various buses are labeled as the bus system 704 in fig. 7, wherein, the network interface 701 is used for receiving and transmitting signals during the process of transmitting and receiving information with other external network elements;

a memory 702 for storing a computer program capable of running on the processor 703;

a processor 703 for executing, when running the computer program, the following:

in the charging process of the equipment to be charged, performing constant current charging on a battery in the equipment to be charged in K stages; wherein K is a positive integer greater than or equal to 1;

for every constant current charging stages in the K stages, respectively carrying out constant current charging on the battery according to the preset current corresponding to the constant current charging stage so as to charge the battery to the preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the K-th constant current charging stage is a charging cut-off voltage which is greater than the rated voltage of the battery;

and stopping charging the battery when detecting that the voltage of the battery reaches the charging cut-off voltage in the Kth constant current charging stage.

It will be appreciated that the memory 702 in the subject embodiment can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (ddr SDRAM ), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 702 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The Processor 703 may be a Integrated Circuit chip having Signal processing capabilities, and in the implementation, the steps of the method may be implemented by instructions in the form of hardware Integrated logic or software in the Processor 703. the Processor 703 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Array (FPGA) or other Programmable logic device, discrete or transistor logic, discrete hardware components.

For a hardware implementation, the Processing units may be implemented within or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable arrays (FPGAs), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Optionally, as another embodiments, the processor 703 is further configured to execute the steps of the method in the foregoing technical solution shown in fig. 3 when running the computer program.

Referring to fig. 8, a schematic diagram of a composition structure of types of devices 80 to be charged provided in the embodiment of the present application is shown, and as shown in fig. 8, the device 80 to be charged at least includes the charging control apparatus 60 according to any of the foregoing embodiments.

It should be noted that: the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

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.

Industrial applicability

The method is applied to the device to be charged, in the charging process of the device to be charged, constant current charging is conducted on a battery in the device to be charged in K stages, wherein K is a positive integer larger than or equal to 1, the battery is subjected to constant current charging according to preset currents corresponding to the constant current charging stages respectively aiming at every constant current charging stages in the K stages so as to be charged to preset voltages corresponding to the constant current charging stages, the preset voltages corresponding to the K constant current charging stages are charging cut-off voltages, the charging cut-off voltages are larger than rated voltages of the battery, when the voltage of the battery reaches the charging cut-off voltages in the K constant current charging stages, the battery is stopped to be charged, multi-stage constant current charging is adopted in the charging process, and the battery is stopped to be charged after the K constant current charging stages, namely, the constant voltage charging stage is cancelled, so that the charging time is saved, and the charging speed is increased.