Earphone charging control method and charging bin

Abstract

The embodiment of the invention discloses an earphone charging control method and a charging bin, and the method is applied to the charging bin, and comprises the steps: outputting a charging voltage to an earphone, and detecting the charging current of the earphone; sending an electric quantity query instruction to the earphone, and obtaining electric quantity information fed back by the earphone; judging whether the earphone is in a light load state according to the charging current; wherein the light load state is a state in which the charging current is smaller than a preset current threshold value; when the earphone is in a light-load state, setting light-load duration according to the electric quantity information; and when the duration of the light-load state reaches the set light-load duration, controlling the charging bin to enter a dormant state. Through the above mode, combined judgment can be carried out in combination with the charging current and the electric quantity information, different light load duration is set according to different states, and misjudgment or continuous power consumption of the charging bin when the earphone is abnormal is avoided.

Description

Technical Field

[0001] The present invention relates to the field of headphone charging, and in particular to a headphone charging control method and a charging case. Background Technology

[0002] Currently, true wireless stereo (TWS) earbuds typically include wireless Bluetooth earbuds and a charging case. The charging case charges the earbuds, and once the earbuds are fully charged, the charging case enters a sleep state to reduce power consumption.

[0003] Currently, there are two main methods for charging cases on the market to determine if the earbuds are fully charged: The first method is current detection. The charging case determines whether the earbuds are fully charged by detecting the charging current of the earbuds. When the charging current of the earbuds is less than a preset threshold (i.e., light load state) and this continues for a period of time, the charging case determines that the earbuds are fully charged and then enters sleep mode.

[0004] The second method is to check the battery level. While charging the earbuds, the charging case periodically sends a command to the earbuds to check their battery level. When the earbuds indicate that they are fully charged, the charging case determines that the earbuds are fully charged and then enters sleep mode.

[0005] However, both of these methods have problems when the earphones malfunction. For example, when the earphones shut down the charging module due to excessively high or low temperatures during charging, the charging current remains at a low level. With the first current detection method, the charging case might mistakenly determine that the earphones are fully charged and enter a sleep state, preventing them from charging again once they return to normal. With the second battery level detection method, because the earphones' feedback on the battery level is never fully charged, the charging case will continue to output charging voltage instead of entering a sleep state. If the earphones fail to return to normal operation for an extended period, the charging case's battery may be depleted. Summary of the Invention

[0006] The main technical problem solved by the embodiments of the present invention is to provide a headphone charging control method and a charging case, which can solve at least some of the defects of the existing headphone charging control methods.

[0007] In a first aspect, embodiments of the present invention provide an earphone charging control method applied to a charging case, comprising: outputting a charging voltage to the earphone and detecting the charging current of the earphone; sending a power query command to the earphone to obtain power information fed back by the earphone; determining whether the earphone is in a light-load state based on the charging current; wherein the light-load state is a state in which the charging current is less than a preset current threshold; when the earphone is in the light-load state, setting a light-load duration based on the power information; and when the duration of the light-load state reaches the set light-load duration, controlling the charging case to enter a sleep state.

[0008] Optionally, setting the light load duration based on the power information includes: determining whether the power information has reached a preset power threshold; if the power information has reached the preset power threshold, setting the light load duration to a first duration; if the power information has not reached the preset power threshold, setting the light load duration to a second duration; the second duration is longer than the first duration.

[0009] Optionally, sending a battery query command to the earphone and obtaining battery information from the earphone includes: sending a battery query command to the earphone at preset query intervals; and receiving battery information from the earphone in response to the battery query command.

[0010] Optionally, before outputting the charging voltage to the earphones, the method further includes: detecting whether the earphones are placed in the charging case; after detecting that the earphones are placed in the charging case, detecting whether the lid of the charging case is closed; and when the lid is closed, performing the step of outputting the charging voltage to the earphones.

[0011] Optionally, before determining whether the earphone is in a light-load state based on the charging current, the method further includes: initializing the light-load duration to the first duration; and starting a light-load timer.

[0012] Optionally, setting the light load duration based on the battery information when the headphones are in the light load state includes: updating the light load duration from the first duration to the second duration when the headphones are in the light load state and the battery information has not reached the preset battery threshold.

[0013] Optionally, the method further includes: When the headphones are in the light load state and the duration of the light load state does not reach the set light load duration, the charging voltage is continuously output to the headphones.

[0014] Optionally, the preset power threshold is 100%, and the second duration is 30 minutes to 2 hours.

[0015] Secondly, embodiments of the present invention provide a charging case, comprising: a charging output module for outputting a charging voltage to earphones; a current detection module for detecting the charging current of the earphones; a communication module for sending a power query command to the earphones and obtaining power information fed back by the earphones; and a control module for determining whether the earphones are in a light-load state based on the charging current, and setting a light-load duration based on the power information when the earphones are in the light-load state; wherein, the light-load state is a state in which the charging current is less than a preset current threshold; if the power information reaches the preset power threshold, the light-load duration is set to a first duration; if the power information does not reach the preset power threshold, the light-load duration is set to a second duration; the second duration is greater than the first duration; the control module is further configured to control the charging case to enter a sleep state when the duration of the light-load state reaches the set light-load duration.

[0016] Optionally, the charging case further includes: an insertion detection module for detecting whether the earphones are inserted into the case; and a cover detection module for detecting whether the cover of the charging case is closed.

[0017] The beneficial effects of the embodiments of the present invention are: unlike the prior art, the embodiments of the present invention... Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic flowchart of an earphone charging control method provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a charging compartment provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of another charging compartment provided by an embodiment of the present invention. Detailed Implementation

[0020] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0022] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0023] The technical solutions in this application will be described below with reference to the accompanying drawings.

[0024] Please see Figure 1 , Figure 1 This is a schematic flowchart of an earphone charging control method provided by an embodiment of the present invention.

[0025] In some embodiments of this application, a headphone charging control method is provided, applied to a charging case. It is understood that the charging case is used to charge the headphone and enters a sleep state to reduce power consumption when certain conditions are met. As an example and not a limitation, the headphone can be a true wireless stereo (TWS) headphone.

[0026] In some embodiments of this application, the headphone charging control method includes the following steps: Step S100: Output charging voltage to the headphones and detect the charging current of the headphones.

[0027] In some embodiments of this application, the charging case outputs a charging voltage to the earbuds to charge them. It is understood that while the charging case is outputting the charging voltage to the earbuds, it simultaneously detects the charging current of the earbuds. Specifically, the charging current characterizes the amount of current drawn from the charging case by the earbuds during the charging process.

[0028] Step S200: Send a battery query command to the earphone to obtain the battery information from the earphone.

[0029] In some embodiments of this application, the charging case sends a battery level query command to the earphones. It is understood that after receiving the battery level query command, the earphones return battery level information to the charging case. Specifically, the battery level information is used to characterize the current battery level of the earphones.

[0030] Step S300: Determine whether the headphones are in a light-load state based on the charging current.

[0031] In some embodiments of this application, the charging case determines whether the earphones are in a light-load state based on the detected charging current. It is understood that a light-load state is a state where the charging current is less than a preset current threshold. Specifically, when the earphones' charging current is less than the preset current threshold, the earphones are determined to be in a light-load state; when the earphones' charging current is greater than or equal to the preset current threshold, the earphones are determined not to be in a light-load state.

[0032] In some embodiments of this application, if the earphones are not in a light-load state, the charging case continues to execute steps S100 and S200, that is, continues to output charging voltage to the earphones, detect charging current, and obtain power information.

[0033] Step S400: When the headphones are in a light load state, set the light load duration based on the battery information.

[0034] In some embodiments of this application, when the earphones are determined to be in a light-load state, the charging case sets a light-load duration based on the acquired battery level information. It is understood that the light-load duration characterizes the length of time the earphones need to remain in a light-load state, and is used as a basis for determining when the charging case enters a sleep state. Specifically, the charging case sets different light-load durations based on different battery level information.

[0035] Step S500: When the duration of the light load state reaches the set light load duration, control the charging case to enter the sleep state.

[0036] In some embodiments of this application, the charging case times the duration of the earphones being in a light-load state. It is understood that when the duration of the light-load state reaches a set light-load duration, the charging case enters a sleep state. Specifically, after entering the sleep state, the charging case stops outputting charging voltage to the earphones.

[0037] In some embodiments of this application, step S200, which involves sending a battery query command to the earphone to obtain battery information from the earphone, includes the following steps: Specifically, a battery level query command is sent to the earphones at preset query intervals.

[0038] In some embodiments of this application, the charging case periodically sends a battery level query command to the earphones at a preset query period. It is understood that the preset query period represents the time interval between two consecutive battery level query commands. Specifically, while outputting charging voltage to the earphones, the charging case periodically sends a battery level query command to the earphones according to the preset query period to obtain the real-time battery status of the earphones.

[0039] Specifically, it receives battery information from the earphone in response to the battery query command.

[0040] In some embodiments of this application, after receiving a battery query command from the charging case, the earphones send battery information back to the charging case. It is understood that, in response to the battery query command, the earphones send their current battery status as battery information to the charging case. Specifically, the charging case receives the battery information from the earphones and uses this information for subsequent settings of the light-load duration.

[0041] In some embodiments of this application, the charging case can continuously obtain the earphone's battery status by periodically sending battery query commands and receiving battery information. It is understood that the charging case can know the earphone's current battery level at any time, and thus, when the earphone enters a light-load state, it can promptly set the corresponding light-load duration based on the battery information.

[0042] In some embodiments of this application, the preset query period is 2 minutes.

[0043] Understandably, the charging case 10 sends a battery query command to the earphones 20 every 2 minutes. Specifically, the communication module 300 sends the battery query command to the earphones 20 at 2-minute intervals and receives the battery information from the earphones 20.

[0044] In some embodiments of this application, step S400, which sets the light load duration based on the power information, includes the following steps: Specifically, it determines whether the battery level has reached a preset battery threshold.

[0045] In some embodiments of this application, the charging case determines the battery level after identifying that the earphones are in a light-load state. It is understood that a preset battery level threshold is used as a criterion for determining whether the earphone battery is fully charged. Specifically, the charging case compares the battery level information with the preset battery level threshold to determine whether the earphone battery is fully charged.

[0046] Specifically, if the battery level reaches a preset battery threshold, the duration of light load will be set to the first duration.

[0047] In some embodiments of this application, when the battery level reaches a preset threshold, it indicates that the earphone battery is fully charged. It is understood that when the earphone battery is fully charged, the earphone being in a light-load state is a state of normal charging completion. Specifically, the charging case sets the light-load duration to a first duration so that it can enter a sleep state in a relatively short time.

[0048] Specifically, if the battery level does not reach the preset battery threshold, the light load duration will be set to the second duration.

[0049] In some embodiments of this application, when the battery level information has not reached a preset battery threshold, it indicates that the earphone battery is not fully charged. It is understood that the earphone being in a light-load state when the earphone battery is not fully charged may be due to an earphone malfunction. As an example and not a limitation, an earphone malfunction may include the earphone shutting down the charging module due to excessively high or low temperature. Specifically, the charging case sets the light-load duration to a second duration to maintain charging voltage output for a longer period, waiting for the earphone to return to normal before resuming charging.

[0050] In some embodiments of this application, the second duration is longer than the first duration.

[0051] Understandably, the first charging time corresponds to the earbuds being fully charged normally, while the second charging time corresponds to the earbuds malfunctioning. Specifically, when the earbuds are fully charged normally, the charging case uses a shorter first charging time to quickly enter sleep mode and reduce unnecessary power consumption. When the earbuds malfunction, the charging case uses a longer second charging time to allow the earbuds to recover and continue charging during the waiting period, preventing them from failing to fully charge due to prematurely entering sleep mode.

[0052] In some embodiments of this application, by setting different light-load durations based on battery information, the charging case can distinguish between two situations: the earphones are fully charged normally and the earphones are malfunctioning, and adopt corresponding control strategies. Specifically, when the earphones are fully charged normally, the charging case can promptly enter a sleep state to save power; when the earphones are malfunctioning, the charging case can extend the waiting time to avoid the earphones being unable to continue charging due to misjudgment, and also to avoid the charging case running out of power due to indefinite waiting.

[0053] In some embodiments of this application, step S400, when the headphones are in a light-load state, sets the light-load duration based on the battery information, including the following steps: Specifically, when the headphones are in a light load state and the battery information has not reached the preset battery threshold, the light load duration is updated from the first duration to the second duration.

[0054] In some embodiments of this application, after determining that the earphones are in a light-load state, the charging case further determines whether the battery level has reached a preset battery threshold. It is understood that when the earphones are in a light-load state and the battery level has not reached the preset battery threshold, it indicates that the earphone battery is not fully charged, and the earphones may be in an abnormal state. Specifically, the charging case updates the light-load duration from the initially set first duration to a second duration.

[0055] In some embodiments of this application, the update operation of the light load duration involves replacing the first duration with a second duration. It is understood that, since the second duration is longer than the first duration, the updated light load duration is longer than the initial value. Specifically, by extending the light load duration, the charging case can provide sufficient waiting time for the earphones to return to normal operation.

[0056] In some embodiments of this application, when the earphones are in a light-load state and the battery level reaches a preset battery threshold, the charging case maintains the light-load state for a first duration without updating. It is understood that when the earphone battery is fully charged, the light-load state represents a normal completed charging process, and there is no need to extend the light-load duration.

[0057] In some embodiments of this application, the headphone charging control method further includes the following steps: Specifically, when the headphones are in a light load state and the duration of the light load state does not reach the set light load duration, the charging voltage is continuously output to the headphones.

[0058] In some embodiments of this application, the charging case continuously monitors the duration of the light-load state after the earbuds enter a light-load state. It is understood that when the duration of the light-load state has not yet reached the set light-load duration, the charging case continues to output charging voltage to the earbuds and does not enter a sleep state. Specifically, the charging case maintains the output of charging voltage during the waiting period so that the earbuds can continue charging after returning to normal operation.

[0059] In some embodiments of this application, maintaining the charging voltage output to the earphones ensures that the earphones continue charging after the abnormality is resolved. It is understood that when the earphones enter a light-load state due to an abnormality, the charging case provides conditions for the earphones to return to normal by maintaining the charging voltage output and extending the light-load duration. Specifically, if the earphones return to normal within the light-load duration, the charging current of the earphones will increase and exceed a preset current threshold, the earphones will exit the light-load state, and the charging case will continue the normal charging process.

[0060] In some embodiments of this application, if the earphones fail to return to normal within the light load duration, the light load duration will reach the set light load duration, and the charging case will then enter a sleep state. It is understood that by setting the light load duration as an upper limit for the waiting time, the charging case can avoid running out of power due to indefinite waiting.

[0061] In some embodiments of this application, the preset current threshold is 5mA.

[0062] Understandably, when the charging current of the earphone 20 is less than 5mA, the control module 400 determines that the earphone 20 is in a light-load state. Specifically, 5mA is used as the threshold for judging the light-load state, which can effectively distinguish between the normal charging state and the light-load state of the earphone 20.

[0063] In some embodiments of this application, the preset power threshold is 100%.

[0064] Understandably, 100% indicates that the battery of the earphone 20 is fully charged. Specifically, when the battery level is 100%, it means that the battery of the earphone 20 is fully charged; when the battery level is less than 100%, it means that the battery of the earphone 20 is not fully charged.

[0065] In some embodiments of this application, the first duration is 3 minutes.

[0066] Understandably, when the earphone 20 is in a light-load state and the battery level reaches 100%, the control module 400 sets the light-load duration to 3 minutes. Specifically, 3 minutes serves as the light-load duration under normal full-charge conditions for the earphone 20, ensuring that the charging case 10 promptly enters sleep mode after confirming that the earphone 20 is fully charged.

[0067] In some embodiments of this application, the second duration is 30 minutes to 2 hours.

[0068] Understandably, when the earphone 20 is in a light-load state and the battery level is not 100%, the control module 400 sets the light-load duration to 30 minutes to 2 hours. Specifically, the specific value of the second duration can be set within the range of 30 minutes to 2 hours according to actual needs. As an example rather than a limitation, the second duration can be 30 minutes, 1 hour, or 2 hours.

[0069] In some embodiments of this application, the second duration is set according to the ambient temperature of the charging environment of the earphone 20.

[0070] Understandably, the time required for the earphones 20 to return to normal varies depending on the ambient temperature during charging. Specifically, in extreme charging conditions, the second duration can be set to a longer value to allow sufficient waiting time for the earphones 20 to return to normal; in milder charging conditions, the second duration can be set to a shorter value.

[0071] In some embodiments of this application, before outputting the charging voltage to the headphones in step S100, the following steps are also included: Specifically, it checks whether the earphones are in their case.

[0072] In some embodiments of this application, the charging case first detects whether the earphones are placed inside the charging case before outputting charging voltage to the earphones. It is understood that "placed inside" signifies that the earphones are positioned in the earphone slot of the charging case and physically connected to the charging case. Specifically, the charging case determines whether earphones requiring charging are present by detecting whether they are placed inside.

[0073] Specifically, after detecting that the earphones are placed in the case, the system checks whether the lid of the charging case is closed.

[0074] In some embodiments of this application, after the charging case detects that the earphones have been inserted, it further detects whether the lid of the charging case is in a closed state. It is understood that the lid is used to seal the earphone slots in the charging case, and the closed state indicates that the lid seals the earphone slots. Specifically, the charging case determines whether it is in a ready-to-charge state by detecting the state of the lid.

[0075] Specifically, when the cover is closed, the step of outputting a charging voltage to the earphones is performed.

[0076] In some embodiments of this application, the charging case starts outputting a charging voltage to the earbuds when it detects that the lid is closed. It is understood that initiating the charging process with the earbuds inside and the lid closed ensures that the charging process proceeds in a stable state. Specifically, after meeting the above conditions, the charging case executes step S100, outputting a charging voltage to the earbuds and detecting the charging current of the earbuds.

[0077] In some embodiments of this application, before determining whether the headphones are in a light-load state based on the charging current in step S300, the following steps are also included: Specifically, the duration of light load is initialized to the first duration.

[0078] In some embodiments of this application, the charging case initializes the light-load duration before determining whether the earphones are in a light-load state. It is understood that the first duration, as the initial value of the light-load duration, corresponds to the earphones being fully charged. Specifically, the charging case sets the initial value of the light-load duration to the first duration so that it can be adjusted based on battery information in subsequent processes.

[0079] Specifically, start the light load timer.

[0080] In some embodiments of this application, the charging case starts a light-load timer after initializing the light-load duration. It is understood that the light-load timer is used to time the duration the earphones are in a light-load state. Specifically, the light-load timer starts timing when the earphones enter the light-load state and resets when the earphones exit the light-load state, in order to accurately record the duration of the light-load state.

[0081] In some embodiments of this application, by initializing the light load duration to a first duration and starting a light load timer, the charging case can provide a basis for subsequent light load state judgment and sleep control. It is understood that when the earphones enter a light load state, the charging case determines whether the light load duration needs to be updated from the first duration to the second duration based on the battery level information, and uses the light load timer to determine whether the duration of the light load state has reached the set light load duration.

[0082] Please see Figure 2 , Figure 2 This is a schematic diagram of a charging compartment provided by an embodiment of the present invention.

[0083] In some embodiments of this application, a charging case 10 is provided for charging the earphones 20. It is understood that the charging case 10 is used in conjunction with the earphones 20, and the charging case 10 can charge the earphones 20 and enter a sleep state when certain conditions are met. As an example and not a limitation, the earphones 20 can be true wireless stereo earphones.

[0084] In some embodiments of this application, the charging compartment 10 includes a charging output module 100, a current detection module 200, a communication module 300, and a control module 400.

[0085] Specifically, the charging output module 100 is used to output charging voltage to the earphone 20.

[0086] In some embodiments of this application, the charging output module 100 is electrically connected to the earphone 20 and is used to provide the voltage required for charging the earphone 20. It is understood that the charging output module 100 outputs a charging voltage to the earphone 20 under the control of the control module 400 to charge the battery of the earphone 20.

[0087] In some embodiments of this application, the charging output module 100 outputs a charging voltage of 5V to the earphone 20.

[0088] Understandably, 5V is the standard voltage required to charge the earphones 20. Specifically, under the control of the control module 400, the charging output module 100 outputs a 5V charging voltage to the earphones 20 to charge the battery of the earphones 20.

[0089] Specifically, the current detection module 200 is used to detect the charging current of the earphone 20.

[0090] In some embodiments of this application, the current detection module 200 is used to detect the charging current of the earphone 20 during the charging process. It is understood that the charging current characterizes the amount of current drawn from the charging case 10 by the earphone 20 during charging. Specifically, the current detection module 200 sends the detected charging current to the control module 400 for the control module 400 to determine the light-load state.

[0091] Specifically, the communication module 300 is used to send a battery query command to the earphone 20 and obtain the battery information fed back by the earphone 20.

[0092] In some embodiments of this application, the communication module 300 is used to realize data communication between the charging case 10 and the earphone 20. It is understood that the communication module 300 sends a power query command to the earphone 20, and the earphone 20 responds to the power query command by sending power information back to the charging case 10. Specifically, the communication module 300 sends the acquired power information to the control module 400, so that the control module 400 can set the duration of light load operation.

[0093] Specifically, the control module 400 is used to determine whether the earphone 20 is in a light-load state based on the charging current, and when the earphone 20 is in a light-load state, it sets the light-load duration based on the power information.

[0094] In some embodiments of this application, the control module 400 receives the charging current sent by the current detection module 200 and determines whether the earphone 20 is in a light-load state based on the charging current. It is understood that a light-load state is a state where the charging current is less than a preset current threshold. Specifically, when the charging current is less than the preset current threshold, the control module 400 determines that the earphone 20 is in a light-load state.

[0095] In some embodiments of this application, after determining that the earphone 20 is in a light-load state, the control module 400 sets the light-load duration based on the battery information obtained by the communication module 300. It is understood that the control module 400 compares the battery information with a preset battery threshold to determine the specific value of the light-load duration.

[0096] Specifically, if the power information reaches the preset power threshold, the control module 400 sets the light load duration to the first duration.

[0097] In some embodiments of this application, when the battery level reaches a preset battery threshold, it indicates that the earphone 20's battery is fully charged. It is understood that the control module 400 sets the light load duration to a first duration so that the charging case 10 enters a sleep state within a short time.

[0098] Specifically, if the power information does not reach the preset power threshold, the control module 400 sets the light load duration to the second duration.

[0099] In some embodiments of this application, when the battery level does not reach a preset battery threshold, it indicates that the earphone 20's battery is not fully charged. It is understood that the control module 400 sets the light load duration to a second duration so that the charging case 10 maintains charging voltage output for a longer period, waiting for the earphone 20 to return to normal operation.

[0100] In some embodiments of this application, the second duration is longer than the first duration. It is understood that the first duration corresponds to the case where the earphone 20 is fully charged normally, and the second duration corresponds to the case where the earphone 20 malfunctions.

[0101] Specifically, the control module 400 is also used to control the charging case 10 to enter a sleep state when the duration of the light load state reaches the set light load duration.

[0102] In some embodiments of this application, the control module 400 times the duration of the earphone 20 being in a light-load state. It is understood that when the duration of the light-load state reaches a set light-load duration, the control module 400 controls the charging case 10 to enter a sleep state. Specifically, the control module 400 controls the charging output module 100 to stop outputting charging voltage to the earphone 20, thereby causing the charging case 10 to enter a sleep state.

[0103] In some embodiments of this application, the earphone 20 may experience abnormal situations during charging.

[0104] It is understandable that abnormal situations include, but are not limited to, situations where the earphone 20 shuts down its charging module due to excessively high or low temperatures. Specifically, when the temperature of the earphone 20 exceeds its normal operating range, the charging module of the earphone 20 will automatically shut down to protect the battery. At this time, the charging current of the earphone 20 will decrease to below a preset current threshold, causing the earphone 20 to enter a light-load state.

[0105] In some embodiments of this application, when the earphone 20 enters a light-load state due to abnormal temperature, the battery of the earphone 20 is not fully charged, and the power information has not reached the preset power threshold. It is understood that the control module 400 can indirectly determine that the earphone 20 may have an abnormal temperature by detecting that the earphone 20 is in a light-load state and the power information has not reached the preset power threshold. Specifically, the control module 400 sets the light-load duration to a second duration to maintain the charging voltage output for a longer period, waiting for the temperature of the earphone 20 to return to the normal range.

[0106] In some embodiments of this application, when the temperature of the earphone 20 returns to the normal range, the charging module of the earphone 20 is restarted, and the charging current of the earphone 20 increases and exceeds a preset current threshold. It is understood that after the earphone 20 exits the light-load state, the charging case 10 continues to charge the earphone 20 normally until the battery of the earphone 20 is fully charged.

[0107] In some embodiments of this application, if the temperature of the earphone 20 fails to return to a normal range within a second duration, the duration of the light-load state will reach the second duration, and the control module 400 will control the charging case 10 to enter a sleep state. It is understood that by setting the second duration as an upper limit for the waiting time, the charging case 10 can be prevented from running out of power due to indefinite waiting.

[0108] In some embodiments of this application, through the cooperation of the charging output module 100, the current detection module 200, the communication module 300 and the control module 400, the charging case 10 can combine charging current detection and power information query to make a combined judgment, and set the corresponding light load duration according to the power information, so that after the light load state continues for the set duration, the charging case 10 is controlled to enter the sleep state.

[0109] Please see Figure 3 , Figure 3 This is a schematic diagram of another charging compartment provided by an embodiment of the present invention.

[0110] In some embodiments of this application, another charging case 10 is provided for charging the earphones 20. It is understood that... Figure 3 The charging case 10 shown is Figure 2 The difference in the charging case 10 shown is that, Figure 3 The charging compartment 10 shown also includes an insertion detection module 500 and a cover detection module 600.

[0111] In some embodiments of this application, the charging compartment 10 includes a charging output module 100, a current detection module 200, a communication module 300, a control module 400, an insertion detection module 500, and a cover detection module 600.

[0112] It is understandable that the functions of the charging output module 100, current detection module 200, communication module 300, and control module 400 are similar to those of... Figure 2 The corresponding modules in the illustrated embodiments are the same and will not be described again here.

[0113] Specifically, the box-in detection module 500 is used to detect whether the earphone 20 is placed in the box.

[0114] In some embodiments of this application, the earphone placement detection module 500 is used to detect whether the earphone 20 is placed inside the charging case 10. It is understood that placement indicates that the earphone 20 is placed in the earphone slot of the charging case 10 and has established a physical connection with the charging case 10. Specifically, the earphone placement detection module 500 sends the detection result to the control module 400, so that the control module 400 can determine whether there is an earphone 20 that needs charging.

[0115] In some embodiments of this application, when the earphone 20 is detected by the case insertion detection module 500, it sends a case insertion signal to the control module 400. It is understood that after receiving the case insertion signal, the control module 400 determines that the earphone 20 has been placed inside the charging case 10.

[0116] Specifically, the cover detection module 600 is used to detect whether the cover of the charging compartment 10 is in a closed state.

[0117] In some embodiments of this application, the cover detection module 600 is used to detect the open / closed state of the cover of the charging case 10. It is understood that the cover is used to close the earphone slot of the charging case 10, and the closed state indicates that the cover closes the earphone slot. Specifically, the cover detection module 600 sends the detection result to the control module 400, so that the control module 400 can determine whether the charging case 10 is in a ready-to-charge working state.

[0118] In some embodiments of this application, when the cover detection module 600 detects that the cover is in a closed state, it sends a cover-closed signal to the control module 400. It is understood that after receiving the cover-closed signal, the control module 400 determines that the cover of the charging compartment 10 is closed.

[0119] In some embodiments of this application, the control module 400 controls whether the charging output module 100 outputs a charging voltage to the earphone 20 based on the detection results of the case insertion detection module 500 and the cover detection module 600. It can be understood that when the control module 400 receives the case insertion signal and the cover closing signal, it controls the charging output module 100 to output a charging voltage to the earphone 20, thus initiating the charging process.

[0120] Specifically, after determining that the earphone 20 is placed in the case and the cover is closed, the control module 400 controls the charging output module 100 to output a charging voltage to the earphone 20, and at the same time controls the current detection module 200 to detect the charging current of the earphone 20, and controls the communication module 300 to send a power query command to the earphone 20 to obtain power information.

[0121] In some embodiments of this application, through the cooperation of the case insertion detection module 500 and the cover detection module 600, the charging case 10 can initiate the charging process when the earphone 20 is inserted into the case and the cover is closed. It is understood that the case insertion detection module 500 and the cover detection module 600 provide precondition judgments for initiating the charging process, ensuring that the charging process proceeds in a stable state.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above. For the sake of brevity, they are not provided in detail; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for controlling headphone charging, applied to a charging case, characterized in that, include: Output a charging voltage to the earphone and detect the charging current of the earphone; Send a battery query command to the earphone to obtain the battery information returned by the earphone; The charging current is used to determine whether the earphone is in a light-load state; wherein, the light-load state is the state in which the charging current is less than a preset current threshold. When the headphones are in the light load state, the light load duration is set according to the battery information; When the duration of the light load state reaches the set light load duration, the charging compartment is controlled to enter a sleep state.

2. The method according to claim 1, characterized in that, The step of setting the light load duration based on the power information includes: Determine whether the battery level has reached a preset battery threshold; If the power information reaches a preset power threshold, the light load duration is set to a first duration. If the power information does not reach the preset power threshold, the light load duration is set to the second duration. The second duration is longer than the first duration.

3. The method according to claim 1, characterized in that, Sending a battery query command to the earphone and obtaining the battery information returned by the earphone includes: A battery level query command is sent to the earphone at preset query intervals; Receive the battery information fed back by the earphone in response to the battery query command.

4. The method according to claim 1, characterized in that, Before outputting a charging voltage to the earphones, the method further includes: Check if the earphones are in the case; After detecting that the earphones are placed in the case, it is detected whether the lid of the charging case is closed; When the cover is in the closed state, the step of outputting charging voltage to the earphone is performed.

5. The method according to claim 1, characterized in that, Before determining whether the headphones are in a light-load state based on the charging current, the method further includes: The duration of light load is initialized to the first duration. Start the light load timer.

6. The method according to claim 1, characterized in that, The step of setting the duration of light load based on the battery information when the headphones are in the light load state includes: When the headphones are in the light load state and the battery information has not reached the preset battery threshold, the light load duration is updated from the first duration to the second duration.

7. The method according to claim 1, characterized in that, The method further includes: When the headphones are in the light load state and the duration of the light load state does not reach the set light load duration, the charging voltage is continuously output to the headphones.

8. The method according to claim 2, characterized in that, The preset power threshold is 100%, and the second duration is 30 minutes to 2 hours.

9. A charging case, characterized in that, include: The charging output module is used to output charging voltage to the headphones; A current detection module is used to detect the charging current of the earphones; The communication module is used to send a battery query command to the earphone and obtain the battery information fed back by the earphone; The control module is used to determine whether the earphone is in a light-load state based on the charging current, and when the earphone is in the light-load state, to set the light-load duration based on the battery information. Wherein, the light load state is the state in which the charging current is less than a preset current threshold; if the power information reaches the preset power threshold, the light load duration is set to a first duration; if the power information does not reach the preset power threshold, the light load duration is set to a second duration; the second duration is longer than the first duration. The control module is also used to control the charging compartment to enter a sleep state when the duration of the light load state reaches the set light load duration.

10. The charging case according to claim 9, characterized in that, The charging compartment also includes: The earphone placement detection module is used to detect whether the earphones are placed in the case. The cover detection module is used to detect whether the cover of the charging compartment is closed.

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