Charging Method, Charging Case and Computer-Readable Storage Medium

Abstract

The present application discloses a charging method, a charging case and a computer-readable storage medium. The charging method includes: obtaining charging information of a headset to be charged, where the charging information includes at least one of a charging voltage and a charging current; controlling a voltage conversion module of the charging case to convert an output voltage of a battery into a charging voltage matching the charging information according to the charging information; and controlling a charging circuit of the charging case to output the charging voltage to the headset to be charged. By detecting the charging voltage and charging current in the headset during the charging process and adjusting the currently output voltage according to the charging voltage and charging current, the charging voltage output by the charging case is minimized, and the charging current inside the headset can be kept normal, thereby improving the efficiency of the voltage conversion circuit of the charging case and the working efficiency of the charging circuit inside the headset.

Description

Technical Field

[0001] The present application relates to the technical field of wireless earphones, and particularly to a charging method, a charging case, and a computer-readable storage medium. Background Art

[0002] Generally, for the charging cases of TWS earphones (True Wireless Stereo, wireless stereo, abbreviated as TWS) and ANC earphones (Active Noise Cancellation, active noise cancellation, abbreviated as ANC), the lithium battery inside the charging case with a voltage of 3.7V is boosted to the standard USB output voltage of 5.0V, and then the earphones are charged. Both TWS earphones and ANC earphones are built-in with rechargeable lithium batteries, and a charging circuit is equipped inside the earphones. The charging circuit converts the externally input 5V voltage into the charging voltage required by the battery (generally 2.8V - 4.2V), and charges the lithium battery with constant current and constant voltage. During the process of converting the 5V voltage into 2.8V - 4.2V by the charging circuit inside the earphones, there will be power loss. Due to the small size and narrow internal space of in-ear and semi-in-ear TWS and ANC earphones, generally linear buck voltage regulation is adopted. When converting the external 5V into 2.8V - 4.2V, the theoretical maximum power conversion efficiency is only 56% - 84%. At the same time, inside the charging case, there is also a problem of conversion efficiency during the process of boosting and converting the 3.7V of the lithium battery into 5V. Summary of the Invention

[0003] Embodiments of the present application aim to solve the problem of low efficiency of the voltage conversion circuit of the charging case by providing a charging method, a charging case, and a computer-readable storage medium.

[0004] To achieve the above object, on the one hand, the present application provides a charging case, which includes:

[0005] A battery;

[0006] A voltage conversion module, which is connected to the battery;

[0007] A control unit, which is connected to the voltage conversion module. The control unit is used to control the voltage conversion module to convert the output voltage of the battery into a charging voltage that matches the charging information according to the charging information of the earphone to be charged;

[0008] A charging unit, which is connected to the voltage conversion module. The charging unit is used to output the charging voltage.

[0009] Optionally, the charging case further includes: a detection module, which is respectively connected to the control unit and the charging unit. The detection module is used to detect the charging information of the earphone to be charged; or

[0010] The charging box is provided with a receiving module, and the receiving module is used to receive the charging information sent by the earphone to be charged.

[0011] Optionally, the charging unit includes:

[0012] A charging circuit, the charging circuit is connected to the detection module;

[0013] A charging interface, one end of the charging interface is connected to the charging circuit, and the other end is connected to the earphone to be charged. The charging interface is used to output the charging voltage to the earphone to be charged;

[0014] The charging interface is further used to send the charging information of the earphone to be charged to the charging circuit.

[0015] In addition, to achieve the above object, another aspect of the present application further provides a charging method, which is applied to the above charging box. The method includes:

[0016] Obtain the charging information of the earphone to be charged, and the charging information includes at least one of the charging voltage and the charging current;

[0017] According to the charging information, control the voltage conversion module of the charging box to convert the output voltage of the battery into a charging voltage matching the charging information;

[0018] Control the charging circuit of the charging box to output the charging voltage to the earphone to be charged.

[0019] Optionally, the step of obtaining the charging information of the earphone to be charged includes:

[0020] Receive the encoded signal sent by the earphone to be charged, and the encoded signal is obtained by encoding the currently detected charging information by the earphone to be charged;

[0021] Obtain the charging information of the earphone to be charged according to the encoded signal.

[0022] Optionally, the step of controlling the voltage conversion module of the charging box to convert the output voltage of the battery into a charging voltage matching the charging information includes:

[0023] When the charging information meets the first set condition, control the voltage conversion module to reduce the charging voltage. When the charging information meets the first set condition, the charging voltage of the earphone to be charged reaches the set voltage and the charging current reaches the set current.

[0024] Optionally, after the step of controlling the voltage conversion module to reduce the charging voltage, it includes:

[0025] Obtain the charging current in the charging information, and determine whether the charging current is less than the set current;

[0026] If the charging current is less than the set current, control the voltage conversion module to increase the charging voltage;

[0027] After increasing the charging voltage, obtain the charging current in the charging information;

[0028] If the charging current reaches the set current, charge with the charging voltage corresponding to when the charging current reaches the set current.

[0029] Optionally, after the step of if the charging current reaches the set current, charge with the charging voltage corresponding to when the charging current reaches the set current, further includes:

[0030] Obtain the charging current in the charging information, and determine whether the charging current is less than the set current;

[0031] If the charging current is less than the set current, control the voltage conversion module to increase the charging voltage so that the charging current reaches the set current.

[0032] Optionally, the step of obtaining the charging information of the earphone to be charged further includes:

[0033] Detect the charging information of the earphone to be charged through a detection module.

[0034] In addition, to achieve the above object, another aspect of the present application further provides a computer-readable storage medium, on which a charging program is stored, and when the charging program is executed by a processor, the steps of the charging method as described above are implemented.

[0035] In this embodiment, by obtaining the charging information of the earphone to be charged, the charging information includes at least one of the charging voltage and the charging current; controlling the voltage conversion module of the charging box to convert the output voltage of the battery into a charging voltage matching the charging information according to the charging information; controlling the charging circuit of the charging box to output the charging voltage to the earphone to be charged. By detecting the charging voltage and charging current in the earphone during the charging process, and adjusting the currently output voltage according to the charging voltage and charging current, the charging voltage output by the charging box is minimized, and the charging current of the earphone can be kept normal, thereby improving the voltage conversion circuit efficiency of the charging box and the working efficiency of the internal charging circuit of the earphone. Description of the Drawings

[0036] Figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment solution of the present application;

[0037] Figure 2 It is a schematic structural diagram of the charging case of this application;

[0038] Figure 3 It is another schematic structural diagram of the charging case of this application;

[0039] Figure 4 It is a schematic flowchart of an embodiment of the charging method of this application;

[0040] Figure 5 It is a schematic flowchart of controlling the voltage conversion module of the charging case to convert the output voltage of the battery into a charging voltage matching the charging information in the charging method of this application.

[0041] Explanation of the reference numerals in the drawings:

[0042] Label Name Label Name 100 Charging case 10 Battery 20 Voltage conversion module 30 Control unit 50 Detection module 41 Charging circuit 42 Charging interface

[0043] The realization of the purpose of this application, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0044] It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0045] The main solution of the embodiments of this application is: obtaining the charging information of the earphone to be charged, where the charging information includes at least one of the charging voltage and the charging current; controlling the voltage conversion module of the charging case to convert the output voltage of the battery into a charging voltage matching the charging information according to the charging information; controlling the charging circuit of the charging case to output the charging voltage to the earphone to be charged.

[0046] Since there is a problem of too low conversion efficiency when the charging cases of existing TWS earphones and ANC earphones boost and convert the 3.7V of the lithium battery to 5V, and when the earphone charging circuit converts the externally input 5V voltage into the voltage required for charging the internal battery of the earphone. Therefore, this application obtains the charging information of the earphone to be charged, where the charging information includes at least one of the charging voltage and the charging current; controls the voltage conversion module of the charging case to convert the output voltage of the battery into a charging voltage matching the charging information according to the charging information; controls the charging circuit of the charging case to output the charging voltage to the earphone to be charged. By detecting the charging voltage and charging current in the earphone during the charging process and adjusting the currently output voltage according to the charging voltage and charging current, the charging voltage output by the charging case is minimized, and the charging current of the earphone can be kept normal, thereby improving the efficiency of the voltage conversion circuit of the charging case and the working efficiency of the internal charging circuit of the earphone.

[0047] As Figure 1 shownFigure 1 The schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment solution of this application.

[0048] As shown in Figure 1 the figure, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the foregoing processor 1001.

[0049] Those skilled in the art can understand that Figure 1 the terminal structure shown in

[0050] does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements. Figure 1 As shown in

[0051] In Figure 1 the terminal shown in the figure, the network interface 1004 is mainly used for data communication with the background server; the user interface 1003 is mainly used for data communication with the client (user side); and when the terminal is a charging case, the processor 1001 may be used to call the charging program in the memory 1005 and perform the following operations:

[0052] Obtain the charging information of the headset to be charged, where the charging information includes at least one of the charging voltage and the charging current;

[0053] According to the charging information, control the voltage conversion module of the charging case to convert the output voltage of the battery into a charging voltage matching the charging information;

[0054] Control the charging circuit of the charging case to output the charging voltage to the headset to be charged.

[0055] Refer to Figures 2 - 3, this application proposes a charging case 100, and the charging case 100 includes: a battery 10; a voltage conversion module 20, the voltage conversion module 20 is connected to the battery 10; a control unit 30, the control unit 30 is connected to the voltage conversion module 20, and the control unit 30 is used to control the voltage conversion module 20 to convert the output voltage of the battery 10 into a charging voltage matching the charging information according to the charging information of the earphone to be charged; a charging unit, the charging unit is connected to the voltage conversion module 20, and the charging unit is used to output the charging voltage.

[0056] It should be noted that in this embodiment, the charging cases of existing TWS earphones and ANC earphones are both equipped with rechargeable lithium batteries, and at the same time, a charging circuit is provided inside the earphones. When the charging case charges the earphones, it is necessary to boost the internal lithium battery of 3.7V to the standard USB output voltage of 5.0V and then charge the earphones. However, inside the charging case, there is a problem of low conversion efficiency during the process of boosting the 3.7V of the lithium battery to 5V. The circuit efficiency of boosting the 3.7V of this charging case to only 4.2 - 4.3V will be higher than that of the ordinary charging case when boosting the 3.7V to 5V. In addition, the charging circuit of the earphone needs to convert the 5V voltage input by the charging case into the charging voltage required by the battery (generally 2.8V - 4.2V), and then charge the lithium battery with constant current and constant voltage. However, there will be power loss during the process of the earphone internal charging circuit converting the 5V voltage into the 2.8V - 4.2V voltage. Due to the small size and narrow internal space of in-ear and semi-in-ear TWS and ANC earphones, linear buck voltage regulation is generally adopted. When converting the external 5V into 2.8V - 4.2V, the theoretical maximum power conversion efficiency is only 56% - 84%. Therefore, there are two problems in the above example earphone charging method. For the charging case, it is necessary to boost the built-in lithium battery of 3.7V to 5V to charge the earphone, resulting in low efficiency of the voltage conversion circuit; for the earphone, it is necessary to convert 5V into 2.8 - 4.2V to charge the battery inside the earphone, which will cause power loss and low conversion efficiency of the charging circuit. And in this embodiment, it monitors in real time whether the charging current of the earphone battery is normal, and dynamically adjusts the output charging voltage, so that the output charging voltage is higher than the voltage of the battery to be charged, thereby normalizing the charging current of the earphone battery and minimizing the charging voltage output by the charging case 100, and then improving the efficiency of the voltage conversion circuit of the charging case 100 and the charging circuit of the earphone.

[0057] Specifically, the charging box 100 has a built-in battery 10, which is used to supply power to the voltage conversion module 20 and the control unit 30. When charging starts, the control unit 30 outputs a control signal to the voltage conversion module 20, and the voltage conversion module 20 converts the 3.7V voltage provided by the battery 10 into a 5.0V voltage according to the control information, and the charging unit outputs the 5.0V voltage to the earphone to be charged. During the charging process, the control unit 30 obtains the charging information of the earphone to be charged in real time, and the charging information includes at least one of the charging voltage and the charging current. When the charging current and the charging voltage in the earphone to be charged stably reach the preset values, the control unit 30 gradually reduces the charging voltage output by the voltage conversion module 20, so that the charging voltage output by the voltage conversion module 20 gradually decreases from 5.0V. When the charging voltage output by the voltage conversion module 20 decreases, the charging current of the earphone to be charged is monitored to see if it decreases. If it does not decrease, the charging voltage output by the voltage conversion module 20 continues to decrease until the charging current of the earphone to be charged decreases slightly. At this time, the control unit 30 controls the voltage conversion module 20 to slightly increase the output charging voltage, so that the charging current returns to the preset normal value, so that the earphone battery can be charged stably. During the charging process, as the voltage of the earphone battery to be charged increases, the charging current may decrease. At this time, the control unit 30 controls the voltage conversion module 20 to gradually increase the output charging voltage. By adjusting the output charging voltage in the above manner, the charging current is not lower than the preset rated current value during the constant current charging stage of the earphone battery, and a fixed voltage that is only slightly higher than the earphone battery is also output during the constant voltage charging stage of the earphone battery (this voltage just reaches the voltage required for charging the earphone battery after line loss and normal loss of the charging circuit inside the earphone), so as to avoid excessive energy loss in the process in which the voltage conversion module 20 outputs an excessively high voltage (5V output by a normal charging box) to the charging circuit of the earphone, and the charging circuit of the earphone steps down the voltage to 4.2V and then charges the earphone battery. While the earphone battery can be charged normally, the voltage conversion module 20 automatically adjusts the voltage supplied to the earphone charging circuit according to the difference between the line loss of the charging box 100 and the normal loss of the charging circuit inside the earphone, thereby improving the charging efficiency of the charging box 100 and the earphone as a whole.

[0058] Further, refer to Figures 2 - 3 The charging box 100 also includes: a detection module 50, which is connected to the control unit 30 and the charging unit respectively, and the detection module 50 is used to detect the charging information of the earphone to be charged; or a receiving module is provided in the charging box 100, and the receiving module is used to receive the charging information sent by the earphone to be charged.

[0059] It should be noted that in this embodiment, there are two ways for the charging case 100 to obtain the charging information of the earphone to be charged. Way 1 is to detect the charging information of the earphone to be charged through the detection module 50 in the charging case 100. Among them, the detection module 50 is connected to the charging unit. Further, the detection module 50 is also respectively connected to the voltage conversion module 20 and the control unit 30. The detection unit sends the detected charging information to the control unit 30 so that the control unit 30 can perform a control operation according to the charging information. In addition, the detection module 50 is also used to process the charging voltage output by the voltage conversion module 20 and output the processed charging voltage to the charging unit. Way 2 is to receive the charging information sent by the earphone to be charged through the receiving unit in the charging case 100. Among them, in Way 2, the control unit inside the earphone to be charged detects the battery charging voltage and charging current of the earphone in real time. Through a finger analog-to-digital converter or an analog-to-digital converter (Analog-to-Digital Converter, abbreviated as ADC), the continuously changing analog signal is converted into a discrete digital signal, that is, the charging voltage and charging current are converted into digital signals, and the digital signals are encoded to obtain an encoded signal. The encoded signal is sent to the control unit 30 of the charging case 100 through the 5V interface for earphone charging. Through the detection module 50 and the receiving module in the charging case 100, the charging information of the earphone to be charged can be obtained in real time, so that the output charging voltage can be adjusted in time according to the charging information.

[0060] Further, referring to Figures 2 - 3 , the charging unit includes: a charging circuit 41, and the charging circuit 41 is connected to the detection module 50; a charging interface 42, one end of the charging interface 42 is connected to the charging circuit 41, and the other end is connected to the earphone to be charged. The charging interface 42 is used to output the charging voltage to the earphone to be charged; the charging interface is also used to send the charging information of the earphone to be charged to the charging circuit.

[0061] It should be noted that in this embodiment, the charging unit includes a charging circuit 41, and the charging circuit 41 is connected to the detection module 50 and is used to further process the charging voltage output by the detection module 50; one end of the charging interface 42 is connected to the charging circuit 41, and the other end is connected to the earphone to be charged. The charging interface 42 is used to send the charging voltage output by the charging circuit 41 to the earphone to be charged to realize charging the earphone to be charged. At the same time, the charging interface 42 also transmits the encoded signal of the internal control unit of the earphone to the control unit 30 inside the charging case 100, and after being processed by the control unit 30, an accurate voltage and current are output to charge the earphone.

[0062] Referring to Figure 4 , Figure 4 is a schematic flow chart of an embodiment of the charging method of this application.

[0063] An embodiment of the present application provides an embodiment of a charging method. It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than here.

[0064] The charging method is applied to the above-mentioned charging case 100, and the method includes:

[0065] Step S10, obtaining charging information of the earphone to be charged, where the charging information includes at least one of charging voltage and charging current;

[0066] In this embodiment, there are two ways for the charging case 100 to obtain the charging information of the earphone to be charged. One is to directly detect the charging information of the charging earphone through the detection module 50 in the charging case 100, and the other is to receive the encoded signal sent by the earphone to be charged and obtain the charging information in the earphone to be charged according to the encoded signal. Among them, the encoded signal is obtained by encoding the currently detected charging information by the earphone to be charged. Specifically, the control unit inside the earphone to be charged detects the battery charging voltage and charging current of the earphone in real time, converts the charging voltage and charging current into digital signals through a finger analog / digital converter or an analog / digital converter, encodes the digital signals to obtain an encoded signal, and sends the encoded signal to the control unit 30 of the charging case 100 through the 5V interface for earphone charging. Among them, the earphone to be charged sends the encoded signal to the charging case 100 in real time so that the charging case 100 can timely understand the current charging situation. For example, the earphone to be charged sends the encoded signal to the charging case 100 every set time interval (such as 10 - 100 mS).

[0067] Step S20, controlling the voltage conversion module 20 of the charging case 100 to convert the output voltage of the battery 10 into a charging voltage matching the charging information;

[0068] Reference Figure 5, in this embodiment, when starting to charge, the control unit 30 outputs a control signal to the voltage conversion module 20. The voltage conversion module 20 converts the 3.7V voltage provided by the battery 10 into a 5.0V voltage according to this control information, and the charging unit outputs the 5.0V voltage to the headset to be charged. During the charging process, the control unit 30 obtains the charging information of the headset to be charged in real time. When the charging information meets the first set condition, it controls the voltage conversion module 20 to reduce the charging voltage. Specifically, when the charging current in the headset to be charged reaches a preset value (such as 20 - 60 mA) and the charging voltage reaches a preset value (such as 3.0V - 3.8V), the control unit 30 gradually reduces the charging voltage output by the voltage conversion module 20, so that the charging voltage output by the voltage conversion module 20 gradually decreases from 5.0V. Among them, the voltage decreases by a certain amplitude each time (such as 1 - 5 mV). After each reduction of the charging voltage, immediately detect whether the charging current drops. If the charging current does not drop, reduce the charging voltage again. When it is detected that the charging current drops by a certain amplitude (such as 0.5 - 2 mA), stop reducing the voltage and increase the voltage by a certain amplitude (such as 1 - 5 mV) to make the charging current return to the original preset level. That is, at the beginning of charging, the voltage conversion module 20 currently converts the 3.7V voltage into a 5.0V voltage for output. When the charging current and charging voltage in the headset to be charged stably reach the preset values, the voltage conversion module 20 goes through multiple downward adjustments, detections, and fine-tuning increases, and converts the 3.7V voltage into the voltage required for charging the headset battery (generally 2.8 - 4.2V) for output. At this time, the conversion efficiency of converting the 3.7V voltage into the 2.8 - 4.2V voltage is higher than that of a general charging case that converts the 3.7V voltage into a 5.0V voltage to supply the headset, and the headset charging circuit converts the 5V into 2.8 - 4.2V to charge the headset. That is, the conversion efficiency of the voltage conversion circuit of the charging case 100 and the charging electric energy conversion efficiency of the headset are improved.

[0069] In one embodiment, while the charging voltage output by the voltage conversion module 20 is decreasing, the control unit 30 monitors in real time whether the charging current of the headset to be charged is decreasing. If it does not decrease, that is, the current charging current is not lower than the preset value (such as 20 - 60 mA), the charging voltage output by the voltage conversion module 20 continues to be decreased until the charging current of the headset to be charged slightly decreases, that is, the current charging current is lower than the preset value (such as 20 - 60 mA). At this time, the control unit 30 controls the voltage conversion module 20 to slightly increase the output charging voltage to make the charging current return to the normal preset value (such as 20 - 60 mA), so that the headset battery is stably charged, and the output charging voltage at this time is the voltage corresponding to the moment when the charging current reaches the current preset value. For example, during the process of decreasing the charging voltage, if the voltage drops to 4.2 V and the charging current does not decrease, the output charging voltage continues to be decreased. When the voltage drops to 4.1 V, the charging current decreases a little (such as by 0.5 - 2 mA), then the output charging voltage is not continued to be decreased, but is slightly increased (such as by 1 - 5 mV) to make the charging current return to the normal preset value.

[0070] In one embodiment, during the charging process with the voltage corresponding to the moment when the charging current reaches the set current, as the voltage of the headset battery to be charged increases, the charging current may decrease. At this time, the control unit 30 controls the voltage conversion module 20 to gradually increase the output charging voltage. For example, the current output charging voltage is 4.0 V and the headset battery voltage is 3.9 V. During the charging process, when the headset battery voltage reaches the charging voltage of 4.0 V, that is, the headset battery voltage increases. At this time, the charging current may decrease. If it is detected that the charging current decreases, the current output charging voltage is increased by a certain amplitude (such as 1 - 5 mV each time) to make the charging current return to the normal preset value for charging.

[0071] The charging voltage adjusted in the above manner ensures that during the constant-current charging stage of the earphone battery, the charging current is not lower than the preset rated current preset value. During the constant-voltage charging stage of the earphone battery, a fixed voltage that is only slightly higher than the earphone battery is also output (this voltage, after line loss and normal loss of the internal charging circuit of the earphone, exactly reaches the voltage required for charging the earphone battery), avoiding excessive voltage being converted into redundant heat energy and dissipated after being stepped down by the voltage conversion module 20. While enabling the earphone battery to be normally charged, according to the different line losses of the charging case 100 and the normal losses of the internal charging circuit of the earphone, the voltage conversion module 20 automatically adjusts the voltage supplied to the earphone charging circuit, thereby improving the voltage conversion efficiency of the charging case 100 and the overall charging efficiency of the earphone. For example, for an earphone battery to be charged with a voltage of 3.3V, the charging case 100 outputs a charging voltage slightly higher than 3.3V (such as 3.4V - 3.5V), maintaining a certain voltage difference from the voltage of the earphone battery to be charged and enabling the charging circuit to work stably. This not only improves the voltage conversion efficiency of the charging case 100, for example, from 3.7V to 4.2V, which is higher than the efficiency of a common earphone charging case from 3.7V to 5.0V; but also improves the charging efficiency of the charging circuit in the earphone to be charged for the battery. For example, for an earphone battery to be charged with a voltage of 3.9V, the charging case 100 only needs to output a voltage slightly higher than 3.9V (such as 4.0 - 4.1V) to the charging circuit of the earphone to be charged, and then the charging circuit of the earphone to be charged steps down 4.0 - 4.1V to 3.9V to charge the earphone battery, which is more efficient than other charging cases 100 that first step up 3.7V to 5.0V and then the earphone charging circuit steps down 5V to 3.9V to charge the battery. Among them, if the voltage of the battery 10 in the charging case 100 is 4.0V and the earphone battery to be charged is 3.3V, the charging case 100 will adopt a switching step-down mode to output a voltage slightly higher than 3.3V (such as 3.4V - 3.5V) to charge the earphone battery, which can further improve the charging efficiency.

[0072] It should be noted that the charging voltage, charging current, and the amplitude of each decrease and increase in the charging voltage set in this application can be set in an optimal manner according to factors such as battery characteristics, circuit characteristics, and cost, or set according to the type of earphone, and are not limited herein.

[0073] In step S30, control the charging circuit 41 of the charging case 100 to output the charging voltage to the earphone to be charged.

[0074] In this embodiment, after the voltage conversion module 20 of the charging case 100 outputs the converted charging voltage to the detection module 50, this charging voltage is then output to the earphone to be charged through the charging circuit 41 and the charging interface 42. Among them, the charging case 100 and the earphone to be charged are connected through the charging interface 42.

[0075] In this embodiment, by obtaining the charging information of the earphone to be charged, the charging information includes at least one of the charging voltage and the charging current; according to the charging information, the voltage conversion module 20 of the charging case 100 is controlled to convert the output voltage of the battery 10 into a charging voltage matching the charging information; the charging circuit of the charging case 100 is controlled to output the charging voltage to the earphone to be charged. Since there is a certain voltage loss when the charging circuit in the earphone charges the built-in battery, and there is also a certain internal resistance when the battery is charged. Therefore, this application monitors in real time whether the charging current of the earphone battery is normal, and dynamically adjusts the output charging voltage, so that the output charging voltage is higher than the voltage of the battery to be charged, thereby normalizing the charging current of the earphone battery and minimizing the charging voltage output by the charging case 100, and then improving the efficiency of the voltage conversion circuit of the charging case 100 and the earphone charging circuit.

[0076] In addition, this application also provides a computer-readable storage medium, on which a charging method program is stored. When the charging method program is executed by a processor, the steps of the charging method described above are implemented.

[0077] Those skilled in the art should understand that the embodiments of this application can be provided as a method, a system, or a computer program product. Therefore, this application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0078] This application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of this application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0079] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions in the process Figure 1 one process or multiple processes and / or blocksFigure 1 The functions specified in one or more boxes.

[0080] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one Figure 1 process or more processes and / or boxes Figure 1 or more boxes.

[0081] It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices can be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0082] Although alternative embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they learn of the basic creative concept. Therefore, the appended claims are intended to be construed to include alternative embodiments and all changes and modifications falling within the scope of the present application.

[0083] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A charging method, characterized in that, Applied to a charging case, the charging case includes: a battery, a voltage conversion module, a control unit, a charging unit, and a detection module. The voltage conversion module is connected to the battery; the control unit is connected to the voltage conversion module, and the control unit is configured to control the voltage conversion module to convert the output voltage of the battery into a charging voltage matching the charging information according to the charging information of the earphone to be charged; the charging unit is connected to the voltage conversion module, and the charging unit is configured to output the charging voltage. The charging unit includes a charging circuit, and the charging circuit is connected to the detection module; a charging interface, one end of the charging interface is connected to the charging circuit, and the other end is connected to the earphone to be charged. The charging interface is configured to output the charging voltage to the earphone to be charged; the charging interface is further configured to send the charging information of the earphone to be charged to the charging circuit. The method includes: Obtain the charging information of the earphone to be charged, where the charging information includes at least one of a charging voltage and a charging current; Control the voltage conversion module of the charging case to convert the output voltage of the battery into a charging voltage matching the charging information according to the charging information; Control the charging circuit of the charging case to output the charging voltage to the earphone to be charged; The step of controlling the voltage conversion module of the charging case to convert the output voltage of the battery into a charging voltage matching the charging information according to the charging information includes: When the charging information meets the first set condition, control the voltage conversion module to reduce the charging voltage. When the charging information meets the first set condition, the charging voltage of the earphone to be charged reaches the set voltage and the charging current reaches the set current, and the reduction current of the charging voltage is in the range of 1 to 5 mV; After the step of controlling the voltage conversion module to reduce the charging voltage, it includes: Obtain the charging current in the charging information, and determine whether the charging current is less than the set current; If the charging current is less than the set current, control the voltage conversion module to increase the charging voltage; After increasing the charging voltage, obtain the charging current in the charging information; If the charging current reaches the set current, charge with the charging voltage corresponding to when the charging current reaches the set current; After the step of if the charging current reaches the set current, charge with the charging voltage corresponding to when the charging current reaches the set current, it further includes: Obtain the charging current in the charging information, and determine whether the charging current is less than the set current; If the charging current is less than the set current, control the voltage conversion module to increase the charging voltage so that the charging current reaches the set current.

2. The charging method according to claim 1, characterized in that, The step of obtaining the charging information of the earphone to be charged includes: Receive the encoded signal sent by the earphone to be charged, where the encoded signal is obtained by encoding the currently detected charging information by the earphone to be charged; Obtain the charging information of the earphone to be charged according to the encoded signal.

3. The charging method according to claim 1, characterized in that, The step of obtaining the charging information of the earphone to be charged further includes: Detecting the charging information of the earphone to be charged through a detection module.

4. A computer-readable storage medium, characterized in that, A charging program is stored on the computer-readable storage medium, and when the charging program is executed by a processor, the steps of the method according to any one of claims 1 to 3 are implemented.

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