Standby battery connection control method and earphone charging box

Abstract

The invention relates to the technical field of wearable equipment, in particular to a standby battery connection control method and an earphone charging box, and the method comprises the steps: generating a standby battery connection signal; and controlling the standby battery to be fixedly connected with the wireless earphone in the earphone charging bin according to the standby battery connection signal. The invention mainly aims to provide a standby battery connection control method applied to an earphone charging box, and aims to realize that a standby battery and an earphone can be synchronously taken out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wearable devices, and particularly relates to a backup battery connection control method and an earphone charging box. BACKGROUND

[0002] Wireless earphones cannot be connected to an external power source in real time to realize electrical conduction because they do not have a charging line. When the wireless earphones run out of power during use, the user can only put the wireless earphones into an earphone charging box for charging. After a certain earphone charging time, the user can continue to use the wireless earphones.

[0003] In related technologies, in order to avoid the problem that wireless earphones cannot continue to be used due to insufficient power, an earphone charging box with a backup battery is proposed. The earphone charging box has a backup battery that can be removed. The backup battery can replace the battery in the wireless earphones, thereby solving the problem that the wireless earphones cannot continue to be used due to insufficient power of the earphone battery. Even so, the earphones still take a little time to replace and install the backup battery, and the problem of interruption of use of the earphones still occurs, resulting in the problems of loss of conference information, missing of call content, and the like. SUMMARY

[0004] The main purpose of the present application is to provide a backup battery connection control method applied to an earphone charging box, which aims to realize that the backup battery and the earphones can be taken out synchronously.

[0005] To achieve the above-mentioned purpose, the backup battery connection control method proposed by the present application is applied to an earphone charging box. The earphone charging box is provided with a backup battery and an earphone charging bin. The earphone charging bin is used to accommodate wireless earphones and charge the wireless earphones. The backup battery is movably arranged in the earphone charging box and can be taken out to charge the wireless earphones. The method comprises the following steps: generating a backup battery connection signal; controlling the backup battery to be fixedly connected to the wireless earphones in the earphone charging bin according to the backup battery connection signal.

[0006] In an embodiment of the present application, the step of generating a backup battery connection signal comprises the following steps: determining a current expected available duration of the wireless earphones; generating the backup battery connection signal when the expected available duration is less than a preset use threshold.

[0007] In an embodiment of the present application, the preset use threshold comprises an expected use duration of the wireless earphones. The expected use duration is: receiving schedule information sent by an electronic device in communication connection with the earphone charging box; determining the expected use duration according to the schedule information.

[0008] In an embodiment of the present application, the step of determining the expected use duration according to the schedule information comprises: According to the schedule information, obtaining a total use duration and a use event type identifier of the wireless earphone; According to the use event type identifier, determining an earphone use ratio through a preset event type and earphone use ratio mapping relationship; According to the total use duration and the earphone use ratio, determining the expected use duration.

[0009] In an embodiment of the present application, the step of determining the expected use duration according to the schedule information comprises: Obtaining an actual power of the wireless earphone; Obtaining a predicted unit time power consumption of the wireless earphone in a subsequent target scenario; According to the actual power and the predicted unit time power consumption, determining the expected use duration.

[0010] In an embodiment of the present application, the step of obtaining the predicted unit time power consumption of the wireless earphone in a subsequent target scenario comprises: Based on the historical use records of the wireless earphone, obtaining all historical use scenarios of the wireless earphone and historical power consumptions corresponding to each of the historical use scenarios; Based on the obtained context information, obtaining a subsequent target scenario of the earphone; According to the subsequent target scenario, determining the historical use scenarios and the historical power consumptions corresponding to the historical use scenarios; Based on the historical power consumptions, obtaining a predicted unit time power consumption of the wireless earphone in the subsequent target scenario.

[0011] In an embodiment of the present application, the earphone charging box is further provided with a movable seat, a first position and a second position, the backup battery is movably arranged in the movable seat, the movable seat can move from the first position to the second position, when the movable seat is in the second position, the backup battery can be fixedly connected with the wireless earphone in the earphone charging compartment, and the step of controlling the backup battery to be fixedly connected with the wireless earphone in the earphone charging compartment according to the backup battery connection signal comprises: Based on the backup battery connection signal, a position reaching control signal is generated; The position reaching control signal is input to the movable seat to drive the movable seat to move from the first position to the second position, so that the backup battery is fixedly connected with the wireless earphone in the earphone charging compartment.

[0012] In an embodiment of the present application, after the step of controlling the backup battery to be fixedly connected to the wireless earphone in the earphone charging box according to the backup battery connection signal, the method further comprises: receiving a first in-place signal of the backup battery being repositioned in the active seat and a second in-place signal of the wireless earphone being repositioned in the earphone charging box; generating a reset control signal according to the first in-place signal and the second in-place signal; inputting the reset control signal to the active seat to drive the active seat to move from the second position to the first position, so that the backup battery is mispositioned in the wireless earphone in the earphone charging box.

[0013] The present application also provides an earphone charging box for implementing the backup battery connection control method as described in any one of the above embodiments. The earphone charging box is provided with a backup battery and an earphone charging box for accommodating and charging a wireless earphone. The backup battery is movably arranged in the earphone charging box. The earphone charging box has a first use state. In the first use state, the earphone charging box generates the backup battery connection signal to make the backup battery fixedly connected to the wireless earphone in the earphone charging box.

[0014] In an embodiment of the present application, the earphone charging box has a second use state. In the second use state, the earphone charging box generates a reset control signal to make the backup battery mispositioned in the wireless earphone in the earphone charging box.

[0015] In the technical solution, the spare battery connection control method applied to the earphone charging box can solve the problem of use interruption caused by the need to replace the spare battery when the wireless earphone is running out of power by using a pre-connection control mechanism. Specifically, the method first generates a spare battery connection signal by the earphone charging box, which serves as a control instruction to start the pre-connection; then, the earphone charging box actively controls the spare battery in the box to physically establish a fixed connection with the wireless earphone in the earphone charging compartment. In this way, the spare battery is attached to the earphone in advance before the user performs the taking-out operation, so that the user can take out the earphone and the spare battery as a whole when opening the cover to use the earphone, without the need to perform additional battery replacement operation when the earphone is running out of power. Based on this method, the continuous power supply experience of "take and use" can be realized. Since the spare battery has completed the connection with the earphone and started to supply power to the wireless earphone at the moment of taking out, the use gap caused by battery replacement and installation is completely eliminated, which ensures the absolute continuity of audio listening and transmission in critical scenarios such as meetings and calls, effectively avoiding information loss or missed listening. At the same time, the pre-connection control logic simplifies the user operation, optimizes the multi-step emergency process of "perceive low power - take out earphone - replace battery - re-wear" to a simple "open cover and take out" action, significantly improving the user experience and the use reliability of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on the drawings shown.

[0017] Figure 1 Flowchart of the first embodiment of the spare battery connection control method provided by the present application; Figure 2 Flowchart of the second embodiment of the spare battery connection control method provided by the present application; Figure 3 Flowchart of the third embodiment of the spare battery connection control method provided by the present application; Figure 4 Flowchart of the fourth embodiment of the spare battery connection control method provided by the present application; Figure 5 Flowchart of the fifth embodiment of the spare battery connection control method provided by the present application; Figure 6 Flowchart of the sixth embodiment of the spare battery connection control method provided by the present application; Figure 7 Flowchart of the seventh embodiment of the backup battery connection control method provided by the present application; Figure 8 Flowchart of the eighth embodiment of the backup battery connection control method provided by the present application; Figure 9 Structure diagram of an embodiment of the earphone charging box provided by the present application; Figure 10 Structure diagram of an embodiment of the earphone charging box provided by the present application; Figure 9 Structure diagram of an embodiment of the earphone charging box provided by the present application; Figure 11 Cooperation diagram of an embodiment of the earphone charging box provided by the present application in the first use state; Figure 12 Cooperation diagram of another embodiment of the earphone charging box provided by the present application in the first use state; Figure 13 Cooperation diagram of an embodiment of the earphone charging box provided by the present application in the second use state; Figure 14 Structure diagram of an embodiment of the backup battery provided by the present application; Figure 15 Structure diagram of an embodiment of the wireless earphone provided by the present application.

[0018] Explanation of the reference signs: 100, earphone charging box; 10, interaction module; 11, earphone accommodating groove; 12, movable seat; 121, first electromagnet side; 122, second electromagnet side; 13, backup battery; 131, first magnetic attraction structure; 132, first charging contact; 14, stopper; 200, wireless earphone; 20, second magnetic attraction structure; 21, second charging contact; 1000, earphone kit.

[0019] The realization of the object, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0021] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0022] In addition, the descriptions involving "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0023] The main purpose of the present application is to provide a spare battery connection control method applied to earphone charging box 100, aiming to realize that the spare battery 13 and the wireless earphone 200 can be taken out synchronously.

[0024] To achieve the above purpose, the spare battery connection control method proposed by the present application is applied to earphone charging box 100, which is provided with spare battery 13 and earphone charging bin, the earphone charging bin is used to accommodate wireless earphone 200 and charge wireless earphone 200, the spare battery 13 is movably arranged in the earphone charging box 100 and can be taken out to charge the wireless earphone 200, please refer to Figure 1 , the method comprises: S10: generating a spare battery connection signal; S20: according to the spare battery connection signal, controlling the spare battery 13 to be fixedly connected with the wireless earphone 200 in the earphone charging bin.

[0025] In step 10, the step is executed by the control mainboard placed in the earphone charging box 100, and the core is to generate a spare battery connection signal for triggering the pre-connection between the spare battery 13 and the wireless earphone 200. The specific generation method of the spare battery connection signal includes but is not limited to the following three kinds: (1) Physical button trigger path: The interaction module 10 is integrated on the shell of the earphone charging box 100, and the interaction module 10 has a dedicated physical control button. The button is connected with the general input / output (GPIO) pin circuit of the control mainboard. When the user presses the button, a level change signal will be generated. The control mainboard detects the state of the GPIO pin through its built-in input detection program at a preset sampling frequency. Once the level jump (such as from high level to low level) that meets the "press" feature is detected, the control mainboard first performs button debouncing processing to eliminate the transient jitter interference of mechanical contact. After confirming the valid button event, the control mainboard immediately calls the corresponding command code from its program memory and generates a backup battery connection signal. This path realizes the user's direct and immediate physical control.

[0026] (2) Smart device instruction trigger path: The control mainboard is integrated with a wireless communication module (such as Bluetooth Low Energy BLE). The earphone charging box 100 maintains a communication link with the user's paired smart device (such as a smartphone) through the wireless communication module. The companion application running on the smart device provides a graphical user interface for the user, who can issue a connection instruction by clicking a virtual button on the interface. The instruction is encapsulated into a data packet via a wireless communication protocol (such as Bluetooth ATT protocol) and sent to the earphone charging box 100. After receiving the data packet, the communication module of the control mainboard decodes and verifies it. If the instruction is confirmed as a valid backup battery 13 connection instruction, the control mainboard generates an internal backup battery connection signal. This path realizes remote and programmed control.

[0027] (3) Automatic judgment trigger path: The control mainboard actively acquires and analyzes two types of information: the first type is the power information of the wireless earphone 200 when it is taken out, that is, the remaining power of the earphone's current battery is read through the communication interface between the charging box and the earphone (such as single-wire communication or wireless communication based on charging contacts); the second type is the use information of the wireless earphone 200, which can come from the smart device calendar synchronized with the earphone charging box 100 (such as the duration of an upcoming meeting), or be based on analysis and prediction of user historical behavior patterns. The decision logic module built into the control mainboard processes these two types of information: for example, compares the predicted available duration of the earphone (derived from the remaining power divided by the predicted average power consumption) with the expected use duration. When the control mainboard determines that the expected use duration is greater than the predicted available duration, the control mainboard generates a backup battery connection signal.

[0028] In step 20, the control mainboard sends a corresponding control instruction to the actuators (such as driving motor, electromagnetic lock, etc.) inside the earphone charging box 100 based on the backup battery connection signal. The instruction drives the actuators to act, and the final effect is to physically fix the movable backup battery 13 to the wireless earphone 200 located in the earphone charging compartment, so as to form a stable connection body of the wireless earphone 200 and the backup battery 13. Through this step, the backup battery 13 is combined with the wireless earphone 200 in advance before the user performs the operation of taking out the wireless earphone 200, so as to ensure that the user can take out them as a whole after opening the cover, and realize the uninterrupted power supply preparation of "take and use".

[0029] In the technical solution, the backup battery connection control method applied to the earphone charging box 100 can solve the problem of use interruption caused by the need to replace the backup battery 13 when the wireless earphone 200 is insufficient. Specifically, the method first generates a backup battery connection signal by the earphone charging box 100, which is used as a control instruction to start the pre-connection; then, the earphone charging box 100 actively controls the backup battery 13 in the box to physically establish a fixed connection with the wireless earphone 200 in the earphone charging compartment according to the signal. In this way, the backup battery 13 is attached to the earphone in advance before the user performs the taking-out operation, so that the user can take out the earphone and the backup battery 13 as a whole when opening the cover to use the earphone, without the need to perform an additional battery replacement operation when the earphone power is exhausted. Based on this method, the continuous power supply experience of "take and use" can be realized. Since the backup battery 13 is connected with the earphone and starts to supply power to the wireless earphone 200 at the moment of taking out, the use gap caused by battery replacement and installation is completely eliminated, which ensures the absolute continuity of audio listening and transmission in critical scenarios such as meetings and calls, effectively avoiding information loss or missed listening. At the same time, the pre-connection control logic simplifies the user operation, and optimizes the multi-step emergency process of "perceiving insufficient power-supply - taking out the earphone - replacing the battery - re-wearing" to a simple "opening the cover and taking out" action, which significantly improves the user experience and the use reliability of the product.

[0030] In an embodiment of the present application, please refer to Figure 2 , step 10 includes: S11: determining the current estimated available duration of the wireless earphone 200; S12: generating the backup battery connection signal when the estimated available duration is less than the preset use threshold.

[0031] In step 11, the control mainboard first reads the actual power of the internal battery of the wireless earphone 200 in real time through the communication interface between the earphone charging box 100 and the wireless earphone 200. At the same time, the control mainboard determines a predicted unit time power consumption (for example, in milliampere-hour / hour) based on the prediction of the use mode (such as call, music, noise reduction mode, etc.) that the user is likely to start next or the average power consumption data of the historical use of the user. Then, the control mainboard calculates the predicted available duration by dividing the actual power by the predicted unit time power consumption. The duration represents the estimated duration that the earphone can continue to work under the current power.

[0032] In step S12, the control mainboard compares the calculated predicted available duration with a preset use threshold and generates a signal accordingly. In an embodiment, the preset use threshold is a fixed target duration threshold (for example, 120 minutes), and when the predicted available duration (for example, only 100 minutes) is less than the target duration threshold, it indicates that the independent endurance of the wireless earphone 200 cannot meet the minimum guaranteed duration set by the earphone charging box, and the control mainboard generates a backup battery connection signal. In another embodiment, the preset use threshold includes a power threshold and a target duration threshold, and the control mainboard judges whether the actual remaining power of the wireless earphone 200 is lower than the preset power threshold (for example, set to 15% of the total capacity of the earphone battery) and whether the predicted available duration is less than the target duration threshold (for example, 120 minutes). When any one of the two conditions is met, for example, the actual power is only 10%, and the predicted available duration is 130 minutes, the control mainboard comprehensively determines that there is a risk of serious shortage of the endurance of the wireless earphone 200, and generates a backup battery connection signal.

[0033] In an online meeting scenario, a user prepares to attend a remote video conference starting at 10:00, with a scheduled duration of 90 minutes, at 9:50 in the morning. When the user picks up the earphone charging box 100 from the table before the meeting starts, the control board inside begins to execute the intelligent judgment process. First, the control board obtains the actual power of the wireless earphone 200 in real time through the charging contact communication, and combines the historical power consumption data of the user in the previous similar "meeting" scenario to calculate the predicted unit time power consumption of the earphone, and then calculates that the predicted available duration supported by the earphone itself is 60 minutes. At the same time, the control board synchronously obtains the "90-minute meeting" schedule information from the user's smart phone through the Bluetooth connection, and parses the expected use duration of 90 minutes from it. Then, the control board compares the two duration parameters, and determines that "the expected use duration (90 minutes) is greater than the predicted available duration (60 minutes)", that is, it is identified that there is a 30-minute power gap. Based on this judgment, the control board automatically generates a backup battery connection signal, which will trigger the subsequent connection action, so that when the user opens the earphone charging box 100, the backup battery 13 has been pre-fixed on the earphone, and the two can be taken out at the same time, so as to ensure that the user can complete the entire 90-minute conference call without interruption.

[0034] In an embodiment of the present application, please refer to Figure 3 The preset use threshold in step 12 includes the expected use duration of the wireless earphone, and the expected use duration is: S121: receiving schedule information sent by an electronic device in communication connection with the earphone charging box 100; S122: determining the expected use duration according to the schedule information.

[0035] In step S121, the control board maintains a communication link with the external electronic device (such as the user's smart phone or tablet computer) which has been successfully paired and connected through its integrated wireless communication module (such as Bluetooth module). The control board sends data request instructions to the electronic device through the communication link according to the preset period or is driven by a specific event (such as detecting that the earphone charging box 100 is picked up, the cover sensor is triggered), or listens to the broadcast information actively pushed by the electronic device. The background service program (such as the matching application program or the system calendar service) running on the electronic device encapsulates the schedule information stored in the device related to the user's next period of time according to the request received or according to the setting rules, and sends it to the earphone charging box 100 through the wireless communication protocol (such as Bluetooth ATT protocol). After receiving the data packet, the control board decodes and checks it, and finally extracts and stores the valid schedule information in the temporary buffer for subsequent processing.

[0036] In step S122, the control mainboard invokes its internal data processing logic to parse the schedule information received and buffered in step S121. First, it identifies one or more upcoming schedule event entries from the information, and selects a target event according to a pre-set priority rule (e.g. selecting the event that starts earliest in time, or the event that lasts the longest). Next, the control mainboard parses the start and end time fields of the target event, and calculates the planned total duration of the event. In some embodiments, the control mainboard can further parse the title, category or label of the event to determine the event type. Then, the control mainboard calculates the final expected usage duration based on the calculated planned total duration, or in combination with an adjustment factor obtained by querying a pre-set mapping table according to the event type (e.g. a “meeting” type factor of 1.0, and a “commute” type factor of 0.5), which is the estimated time that the user is predicted to need to continuously use the wireless earphones 200 next.

[0037] In an embodiment of the present application, referring to Figure 4 , step 122 comprises: S1221: obtaining the total usage duration and the usage event type identifier of the wireless earphones 200 according to the schedule information; S1222: determining the earphone usage ratio according to the usage event type identifier through a pre-set mapping relationship between event type and earphone usage ratio; S1223: determining the expected usage duration according to the total usage duration and the earphone usage ratio.

[0038] In step S1221, the control mainboard invokes its data processing unit to parse the received schedule information. First, it extracts the start and end time of the target schedule event from the information, and determines the total usage duration of the event itself by calculating the time difference (e.g. a meeting from 14:00 to 16:00 has a total usage duration of 120 minutes). At the same time, the control mainboard parses and generates a usage event type identifier representing the nature of the event (e.g. “meeting”, “exercise”, “commute”, etc.) from the title, category or note field of the schedule information through keyword matching or classification label extraction.

[0039] In step 1222, the control mainboard internally stores or has access to a preset event type and earphone usage ratio mapping relationship database. The database defines the typical time ratio of the user actually wearing and using the earphone in different types of events. The control mainboard takes the usage event type identified in step S1221 as a query key and performs a retrieval match in the mapping relationship database. For example, the matching result is that the "meeting" type identification corresponds to an earphone usage ratio of 95%, the "commuting" type corresponds to 70%, and the "movie watching" type corresponds to 100%. Through this query, the control mainboard concretizes an abstract event type into a quantifiable earphone usage ratio coefficient that reflects the user's earphone usage habit in the scenario.

[0040] In step 1123, the control mainboard obtains the total usage time determined in step S1221 and the earphone usage ratio determined in step S1222. Then, it performs an arithmetic operation to multiply the total usage time by the earphone usage ratio. The calculation result is the expected usage time. For example, for a "meeting" with a total time of 120 minutes, combined with a usage ratio of 95%, the calculated expected usage time is 114 minutes. This step combines the objective time length of the event and the user's subjective usage habit in the event, thereby obtaining a more accurate prediction value than simply using the total time length of the schedule, and providing a more reliable basis for subsequent judgment whether to connect the backup battery 13.

[0041] In an embodiment of the present application, please refer to Figure 5 , step 11, comprising: S111: obtaining the actual power of the wireless earphone 200; S112: determining the predicted unit time power consumption of the wireless earphone 200 in the subsequent target scenario; S113: determining the predicted available time based on the actual power and the predicted unit time power consumption.

[0042] In step 111, the control mainboard sends a power query request to the wireless earphone 200 through the electrical connection and communication interface (for example, a single-wire communication protocol based on charging contacts or near field communication technology) between the earphone charging bin and the wireless earphone 200. The power management chip inside the wireless earphone 200 samples the battery voltage and load current through its analog-to-digital converter (ADC) after receiving the request, and calculates the actual power (usually expressed in percentage or milliampere-hour) based on a preset battery power algorithm (such as coulomb counting method or voltage lookup table method), and packages the data back. After receiving the return data packet, the control mainboard decodes and verifies it, and finally stores the valid power information in the register as a key input parameter for subsequent calculation.

[0043] In step 112, first, the control mainboard infers the most likely use mode of the user next, i.e., determines the subsequent target scenario, based on the currently acquired context information (e.g., the "meeting" type identifier parsed from the schedule information, the current time being in the working time period, or the last use mode of the earphone being "active noise reduction"). Then, the control mainboard accesses its stored user historical power consumption database, which records the average power consumption data of the user under different scenario identifiers. The control mainboard retrieves the matching record in the historical database with the inferred subsequent target scenario as the index, and calculates the statistical value (such as the average value or weighted average value) of the historical power consumption data in this scenario, which is determined as the predicted unit time power consumption (the unit is usually milliampere / hour).

[0044] In step 113, the control mainboard calls its arithmetic logic unit to obtain the actual power amount determined in step S111 and the predicted unit time power consumption determined in step S112, and then performs a division operation: predicted available duration = actual power amount divided by predicted unit time power consumption, and the calculation result is the predicted available duration, which represents the theoretical longest time that the wireless earphone 200 can work continuously under the predicted scenario power consumption only relying on the current power amount of the wireless earphone 200 itself.

[0045] In an embodiment of the present application, please refer to Figure 6 , step S112 includes: S1121: based on the historical use records of the wireless earphone 200, obtaining all historical use scenarios of the wireless earphone 200 and the historical power consumption corresponding to each historical use scenario; S1122: based on the acquired context information, obtaining the subsequent target scenario of the earphone; S1123: determining the historical use scenario and the historical power consumption corresponding to the historical use scenario according to the subsequent target scenario; S1124: determining the predicted unit time power consumption of the wireless earphone 200 in the subsequent target scenario according to the historical power consumption.

[0046] In step 1121, the control mainboard classifies the historical usage records stored or synchronized from the earphone by analyzing the stored or synchronized historical usage records, classifies the feature parameters (such as whether the active noise reduction is turned on, whether it is in a call state, a media volume level range, a connected application type, etc.) in each historical usage record, and classifies the historical records into several representative “historical usage scenarios” (for example, “high-definition music playing”, “video conference”, “noise reduction standby”, etc.) through a clustering algorithm or a rule engine. At the same time, the control mainboard calculates the average or median value of the unit time power consumption of all historical records in each classified scenario, and determines the calculation result as the historical power consumption corresponding to the scenario. Finally, the control mainboard forms and maintains a structured query table or database, in which the entries are the corresponding relationship of “historical usage scenario-historical power consumption”, which provides a data basis for subsequent scenario matching and power consumption prediction.

[0047] In step 1122, the control mainboard actively or passively obtains context information, which can come from various sources: for example, the type identification (such as “meeting”) of the next event parsed from the schedule information; the earphone charging box 100 connection state or geographic location detected in real time; or the mode preset by the user through the application. The control mainboard built-in analysis module comprehensively analyzes these multi-source, possibly unstructured context information, infers the user's most likely subsequent use demand, and summarizes and maps it into an explicit subsequent target scenario identification. For example, by comprehensively analyzing “2 pm”, “calendar event is ‘project review’”, “location is company”, etc., it is inferred that the subsequent target scenario is “office conference call”.

[0048] In step 1123, the control mainboard compares and matches the subsequent target scenario identification determined in step S1122 with the “historical usage scenario” database established in step S1121. For example, the “office conference call” scenario can be directly matched to the “conference call” scenario in the database; or it can be identified as simultaneously associated with the “voice call” (higher weight) and “audio playback” (lower weight) two historical scenarios. The output result of the matching process is to determine one or more historical usage scenarios (i.e. matched scenarios) most relevant and most valuable to the “subsequent target scenario”, and at the same time obtain the historical power consumption values corresponding to these matched scenarios in the database. This step completes the accurate association from “current intention” to “historical experience data”.

[0049] In step 1124, the control mainboard obtains the set of historical power consumption values corresponding to the one or more matched historical usage scenarios determined in step S1123, and then performs comprehensive processing on these power consumption values according to a preset algorithm. If only one historical scenario is matched, the historical power consumption value thereof is directly taken as the predicted unit time power consumption. If multiple historical scenarios are matched, multiple historical power consumption values corresponding to these scenarios can be weighted and averaged according to the confidence of each scenario or a preset weight. The calculation result is the final predicted unit time power consumption of the system for the "subsequent target scenario", which is a key dynamic parameter for calculating the predicted available duration and is a combination of the user's historical habits and the current scenario judgment.

[0050] In an embodiment of the present application, the earphone charging box 100 is further provided with a movable seat 12 and a first position and a second position, and the spare battery 13 is movably arranged in the movable seat 12. The movable seat 12 can move from the first position to the second position, and when the movable seat 12 is in the second position, the spare battery 13 can be fixedly connected to the wireless earphone 200 in the earphone charging compartment. Please refer to Figure 7 , step 20 comprises: S210: generating a to-position control signal based on the spare battery connection signal; S220: inputting the to-position control signal to the movable seat 12 to drive the movable seat 12 to move from the first position to the second position, so that the spare battery 13 is fixedly connected to the wireless earphone 200 in the earphone charging compartment.

[0051] In step 210, after generating the spare battery connection signal, the control mainboard starts the control signal conversion program in its internal control mainboard as a trigger condition. According to the preset mapping logic, the control mainboard analyzes and generates a specific to-position control signal that can be recognized by the subsequent execution mechanism from the abstract control intention of the spare battery connection signal. The signal is usually an electronic instruction with specific voltage, current or pulse width characteristics, and its encoding meaning is "drive the movable seat 12 to move to the second position". After generating this signal, the control mainboard prepares for output through its hardware drive circuit (such as H-bridge motor drive circuit or electromagnet drive circuit), that is, the electrical signal is transmitted to the target actuator.

[0052] In step 220, the control mainboard outputs the generated alignment control signal to the power device (e.g. a micro DC motor, a voice coil motor or an electromagnet assembly) driving the movable seat 12 through an electrical connection (e.g. a flexible circuit board or a wire). The power device converts the electrical energy into mechanical energy to generate a precise linear or rotational displacement after receiving the alignment control signal. The driving force is applied to the movable seat 12 carrying the spare battery 13 to overcome the possible static friction or mechanical resistance, drive the movable seat 12 along the preset track or guide structure, and smoothly and controllably move from its initial first position offset from the earphone charging compartment to its final second position accurately aligned with the earphone charging compartment. When the movable seat 12 reaches and stabilizes at the second position, the spare battery 13 is spatially aligned with the wireless earphone 200 in the earphone charging compartment, and the physical connection is automatically completed through the pre-installed fixing mechanism such as magnetic attraction, buckling, etc., so that the spare battery 13 is fixedly connected to the wireless earphone 200, making physical preparation for the synchronous removal of the two.

[0053] In an embodiment of the present application, referring to Figure 8 , after step 20, further comprising: S30: receiving a first alignment signal of the spare battery 13 being re-placed into the movable seat 12 and a second alignment signal of the wireless earphone 200 being re-placed into the earphone charging compartment; S40: generating a reset control signal according to the first alignment signal and the second alignment signal; S50: inputting the reset control signal to the movable seat 12 to drive the movable seat 12 to move from the second position to the first position, so that the spare battery 13 is misaligned with the wireless earphone 200 in the earphone charging compartment.

[0054] In step 30, the control mainboard monitors in real time whether the spare battery 13 has been correctly placed into its dedicated storage position through the first sensor (e.g. a contact switch or a Hall sensor arranged in the movable seat 12). When the spare battery 13 is physically placed and touches the sensor, the sensor generates an electrical signal change, which is captured and decoded by the control mainboard as the first alignment signal indicating that the spare battery 13 is in place. At the same time, the control mainboard monitors in real time whether the wireless earphone 200 has been correctly placed back to the charging contact through the second sensor (e.g. an infrared pair tube or a magnetic induction switch arranged in the earphone charging compartment). When the earphone is placed and triggers the sensor, the control mainboard also captures and decodes the second alignment signal indicating that the wireless earphone 200 is in place. The control mainboard continuously monitors the two independent sensor channels until the two valid alignment signals are successfully and accurately received within a preset time window (e.g. within 2 seconds).

[0055] In step 40, the control mainboard judges the first and second arrival signals received in step S30 through the internal preset logic processing unit. Only when both signals are confirmed to be validly received, the control mainboard determines that the condition "the spare battery 13 and the wireless earphone 200 have both been safely returned to the original position, and the system can return to the initial state" is met. Based on the judgment that the condition is met, the control mainboard immediately calls the reset routine from its program memory and generates a specific reset control signal for driving the active seat 12 to return. The signal is an electronic instruction that is clearly distinguished from the "arrival control signal" in step S210, and its encoding meaning is "drive the active seat 12 to return from the second position to the first position". This step ensures that the reset action is triggered only on the premise that the device is completely recovered.

[0056] In step 50, the control mainboard outputs the reset control signal generated in step S40 to the power device of the active seat 12 through its drive circuit. After receiving the reset control signal, the power device generates a driving force in the opposite direction to that in step S220. This force drives the active seat 12 carrying the spare battery 13 to move along the guide structure from the current second position (aligned with the earphone charging compartment). The active seat 12 moves smoothly and finally stops at its initial first position. In the first position, the active seat 12 and the spare battery 13 thereon are out of alignment with the earphone charging compartment in space, and the physical connection between the spare battery 13 and the wireless earphone 200 is released. This step resets the entire earphone charging box 100 system to the initial stable standby state, prepares for the next connection cycle, and ensures that the user will not take out the spare battery 13 when taking out the earphone next time.

[0057] The application also provides an earphone charging box 100 for implementing the spare battery connection control method according to any one of the above embodiments. The earphone charging box 100 is provided with a spare battery 13 and an earphone charging compartment for accommodating and charging a wireless earphone 200, and the spare battery 13 is movably arranged in the earphone charging box 100. The earphone charging box 100 has a first use state in which the earphone charging box 100 generates a spare battery connection signal to fixedly connect the spare battery 13 to the wireless earphone 200 in the earphone charging compartment.

[0058] In an embodiment of the application, the earphone charging box 100 has a second use state in which the earphone charging box 100 generates a reset control signal to misalign the spare battery 13 to the wireless earphone 200 in the earphone charging compartment.

[0059] In order to fully explain the above method and earphone charging box 100, the structure of the earphone charging box 100 is explained as follows.

[0060] To achieve the above object, please refer to Figure 9 , Figure 10 and Figure 11 The earphone charging box 100 is used for supplying energy to the wireless earphone 200, and the earphone charging box 100 comprises: An earphone charging slot, the earphone charging slot is used for accommodating the earphone; Two movable seats 12, the movable seat 12 is movably arranged in the interior of the earphone charging box 100, each movable seat 12 has a limiting cavity; and, Two backup batteries 13, each backup battery 13 is movably arranged in the limiting cavity; In the first use state, the movable seat 12 is located at the first position in the earphone charging box 100, and the limiting cavity is arranged in the wrong position with the earphone charging slot; in the second use state, the movable seat 12 is located at the second position in the earphone charging box 100, and the backup battery 13 is arranged in the right position with the earphone charging slot, and the limiting cavity is communicated with the earphone charging slot, so that the backup battery 13 can be connected with the earphone; Wherein, the earphone charging box 100 can be switched back and forth between the first use state and the second use state.

[0061] Specifically, the earphone charging box 100 is divided into upper and lower layer structures along the first direction shown in Figure 3 The upper layer of the earphone charging box 100 is mainly an earphone charging bin, which comprises a circuit system, a flip cover and an earphone accommodating slot 11 for accommodating the earphone. When the user opens the flip cover, the earphone accommodating slot 11 can be exposed so that the user can take out or put the earphone into the earphone accommodating slot 11. The bottom of the earphone accommodating slot 11 is also provided with an open end. When the earphone is located in the earphone accommodating slot 11, the circuit system of the earphone charging bin charges the earphone through the battery pipeline circuit module and the battery in the form of PIN point contact, so that the earphone has power for the next use of the user. The lower layer of the earphone charging box 100 is mainly a cavity, and two movable seats 12 are arranged in the cavity and can move back and forth along the second direction shown in Figure 3 The movable seat 12 and the bottom wall of the earphone charging bin can realize directional movement through cooperation modes such as guide rail sliding groove. For example, the bottom of the movable seat 12 is provided with a guide rail extending along the second direction, and the bottom wall of the earphone charging bin is provided with a sliding groove extending along the second direction. The guide rail and the sliding groove are limited and matched. When the movable seat 12 is subjected to power, the movable seat 12 can move along the second direction according to the direction of the power. Of course, the guide rail and the sliding groove between the movable seat 12 and the bottom wall of the earphone charging bin can be replaced with each other, which is not limited herein. The first direction is the height direction when the earphone charging box 100 is vertically placed, and the second direction is the length direction of the earphone charging box 100.

[0062] Each movable seat 12 is provided with a limiting cavity, each limiting cavity is used for placing a spare battery 13, the limiting cavity is provided with an open end close to the end of the earphone accommodating groove 11 to realize that the spare battery 13 can be separated from the limiting cavity, wherein the spare battery 13 is used for charging the earphone in the use state to avoid the problem of insufficient power of the earphone in the use state, which causes the use state to be interrupted; the movable seat 12 can move back and forth between the first position and the second position on the bottom wall of the earphone charging box 100, when the earphone charging box 100 is in the first use state, the movable seat 12 is located at the first position, when the movable seat 12 is at the first position, the movable seat 12 is arranged in a staggered manner with the earphone accommodating groove 11, please refer to Figure 3 , the projection of the structure of the movable seat 12 on the bottom wall of the earphone charging box 100 is completely staggered with the projection of the structure of the earphone accommodating groove 11 on the bottom wall of the earphone charging box 100, that is, there is no structural overlap between the movable seat 12 and the earphone accommodating groove 11 along the first direction, please refer to Figure 4 , the projection of the structure of the movable seat 12 on the bottom wall of the earphone charging box 100 is partially staggered with the projection of the structure of the earphone accommodating groove 11 on the bottom wall of the earphone charging box 100, that is, there is partial structural overlap between the movable seat 12 and the earphone accommodating groove 11 along the first direction, in this way, the spare battery 13 can be staggered with the earphone along the first direction, at this time, the user can only take out the earphone when taking out the earphone; when the earphone charging box 100 is in the second use state, the movable seat 12 is located at the second position, when the movable seat 12 is at the second position, the movable seat 12 is aligned with the earphone accommodating groove 11, please refer to Figure 5 , the projection of the structure of the movable seat 12 on the bottom wall of the earphone charging box 100 is completely aligned with the projection of the structure of the earphone accommodating groove 11 on the bottom wall of the earphone charging box 100, that is, the movable seat 12 and the earphone accommodating groove 11 are completely overlapped along the first direction, at this time, the top of the limiting cavity is directly communicated with the bottom of the earphone charging groove, the spare battery 13 in the movable seat 12 is directly aligned with the wireless earphone 200 in the earphone accommodating groove 11, please refer to Figure 6 and Figure 7 , the second magnetic attraction structure 20 of the wireless earphone 200 and the first magnetic attraction structure 131 of the spare battery 13 are attracted to each other in different ways, and are fixedly connected through the magnetic attraction force, at this time, the user can take out the earphone together with the spare battery 13 when taking out the earphone, at the same time, the second charging contact 21 of the wireless earphone 200 is in contact with the first charging contact 132 of the spare battery 13 to realize electrical conduction, thereby avoiding the problem of use interruption of the wireless earphone 200 in the subsequent use process.

[0063] It can be understood that, in Figures 3 to 5In the embodiment, the earphone accommodating groove 11 and the movable seat 12 have a gap in the first direction, which is to clearly and independently display the earphone accommodating groove 11 and the movable seat 12. In fact, the earphone accommodating groove 11 and the movable seat 12 have no gap in the first direction, which is beneficial to reduce the height of the earphone charging box 100.

[0064] The first use state or the second use state can be customized as the normal use state of the earphone charging box 100 according to the demand degree of the user for the backup battery 13. For example, if the user often has concerns about the insufficient power of the earphone to support the next use, the second use state can be the normal use state of the earphone charging box 100, that is, the backup battery 13 is taken out synchronously with the earphone each time. If the user only has concerns about the insufficient power of the earphone to support the next use under specific demands, the first use state can be the normal use state of the earphone charging box 100, that is, the backup battery 13 is not taken out synchronously with the earphone each time.

[0065] The earphone charging box 100 can switch between the first use state and the second use state. The switching can be realized by pressing the corresponding key on the interactive module 10 or by sending a corresponding operation instruction through a smart device in communication with the earphone charging box 100. The switching between the first use state and the second use state of the earphone charging box 100 is not limited herein.

[0066] In the embodiment, the earphone charging box 100 provided by the application solves the problem of interrupting the use of the earphone due to the insufficient power of the earphone to support the use time by using a backup battery 13 that can be taken out synchronously with the earphone. Specifically, the earphone charging box 100 has a first use state and a second use state. In the first use state, the movable seat 12 is located at a first position in the earphone charging box 100, and the limiting cavity is arranged in a staggered manner with the earphone accommodating groove 11. In the second use state, the movable seat 12 is located at a second position in the earphone charging box 100, the backup battery 13 is arranged in a registered manner with the earphone accommodating groove 11, and the limiting cavity is in communication with the earphone accommodating groove 11 to enable the backup battery 13 to be connected to the earphone. The user can actively switch the earphone charging box 100 between the first use state and the second use state according to the use demand. For example, when the user only needs the earphone, the earphone charging box 100 can be controlled to be in the first use state, in which the limiting cavity is arranged in a staggered manner with the earphone accommodating groove 11, and the earphone is not connected to the backup battery 13, thereby achieving the purpose of taking out only the earphone but not the backup battery 13. When the user needs to take out the earphone and the backup battery 13 synchronously, the earphone charging box 100 can be controlled to be in the second use state, in which the limiting cavity is arranged in a registered manner with the earphone accommodating groove 11, and the backup battery 13 can be connected to the earphone by magnetic attraction, thereby achieving the purpose of taking out the earphone and the backup battery 13 synchronously.

[0067] In particular, please refer to Figure 3 , Figure 4 and Figure 5 , define the side of the two movable seats 12 facing each other as the first electromagnet side 121, which is configured to receive the reset control signal and the in-place control signal; When the first electromagnet side 121 receives the reset control signal, the magnetic force between the two first electromagnet sides 121 is attractive, so that the movable seat 12 and the backup battery 13 can be switched from the second position to the first position; When the first electromagnet side 121 receives the in-place control signal, the magnetic force between the two first electromagnet sides 121 is repulsive, so that the movable seat 12 and the backup battery 13 can be switched from the first position to the second position.

[0068] In this embodiment, the implementation of the first electromagnet side 121 relies on the controllable characteristics of the energization of the electromagnet, by adjusting the polarity of the input current to change the direction of the magnetic field, thereby accurately controlling the interaction force between the two movable seats 12.

[0069] In particular, the first electromagnet side 121 is essentially an electromagnetic coil embedded on the side facing each other of the two movable seats 12. When the control mainboard of the earphone charging box 100 receives instructions from the interaction module 10 or a smart device, it will drive the circuit system to apply current in different directions to these coils: if the reset control signal (such as forward current) is input, the magnetic field excited by the two electromagnet sides is opposite in polarity, according to the principle of magnetic pole repulsion, an attractive force is generated, prompting the movable seat 12 to slide along the pre-set guide rail from the second position to the first position, realizing state reset; if the in-place control signal (such as reverse current) is input, the magnetic field of the two electromagnet sides is the same in polarity, based on the principle of same polarity repulsion, an repulsive force is formed, pushing the movable seat 12 to move from the first position to the second position, completing the alignment preparation of the backup battery 13 and the earphone.

[0070] The energization of the first electromagnet side 121 is controlled by the control mainboard of the earphone charging box 100. The triggering of the reset control signal is designed to be passive, aiming to automatically return the movable seat 12 and the backup battery 13 to the first position after the user puts the earphone and the backup battery 13 back into the charging box, without the need for additional operations. In an embodiment, when the earphone is put into the earphone accommodating groove 11 and the backup battery 13 is slid into the limiting cavity, the position sensor installed inside the earphone charging box 100 detects that both have been in place, and then sends a trigger signal to the control mainboard; in another embodiment, when the electrode of the backup battery 13 contacts the charging contact in the movable seat 12 and establishes a charging circuit, the circuit system detects a characteristic current or voltage change, which is recognized by the control mainboard as a sign that the device has been put back. Regardless of the triggering mode of the embodiment, the control mainboard will automatically apply a reset control signal to the electromagnet coils of the two first electromagnet sides 121 after confirming that the conditions are met, so that the two electromagnets generate an attractive magnetic field, thereby driving the movable seat 12 to move smoothly from the second position and lock to the first position.

[0071] On the contrary, the triggering of the in-place control signal is designed to be active, completely according to the user's immediate needs. Its generation also has two ways, the first way is that the user directly presses the physical control button set on the shell of the earphone charging box 100, which sends a clear switching instruction to the control mainboard; the second way is that the user sends a control instruction through the application program on the smart device, which is received by the communication module of the earphone charging box 100 and conveyed to the control mainboard. After receiving the control instruction, the control mainboard will apply an in-place control signal to the first electromagnet side 121, so that the electromagnet generates a repulsive magnetic field, thereby pushing the movable seat 12 from the first position to the second position to complete the preparation for the docking of the backup battery 13 and the earphone; the third way is to determine that when the expected use duration is greater than the expected available duration, generate a backup battery connection signal, and the control mainboard generates an in-place control signal according to the backup battery connection signal, thereby pushing the movable seat 12 from the first position to the second position to complete the preparation for the docking of the backup battery 13 and the earphone.

[0072] In an application scenario, when both active seats 12 are in the first position, the user expects that the wireless earphone 200 will be used for a long time, and is worried that the power of the wireless earphone 200 is not enough to support the next use of the wireless earphone 200. The user can input a to-position control signal to the two first electromagnet sides 121 by pressing the keys of the interactive module 10 or the corresponding operation quality of the smart device. At this time, the two active seats 12 are repelled and move to the second position, so that the wireless earphone 200 and the backup battery 13 are fixedly connected, so that the earphone and the backup battery 13 are taken out at the same time; when the user puts the wireless earphone 200 and the backup battery 13 into the respective positions, the position detection unit (such as an infrared sensor or a contact sensor) or the circuit state detection unit in the earphone charging box 100 will recognize that the device is in place, and then automatically feedback a signal to the control mainboard. The control mainboard is passively triggered and generates a reset control signal according to the feedback signal, so that the first electromagnet side 121 electromagnet of the two active seats 12 generates an attractive magnetic force, so that the active seat 12 returns to the first position from the second position smoothly, and the automatic reset is completed. At this time, the active seat 12 is locked in the first position, and the backup battery 13 and the earphone accommodating groove 11 return to the misaligned state, ready for the next use. The whole process does not need the user to intervene, realizes the management of "resetting as soon as putting back", and significantly improves the continuity and convenience of the use of the backup battery 13.

[0073] In an embodiment of the application, the earphone charging box 100 is provided with a Hall sensor configured to sense the composite magnetic field of the two first electromagnet sides 121 to generate a first to-position signal and a second to-position signal. When the active seat 12 is in the first position, the first to-position signal is configured to control the first electromagnet side 121 to be powered off and reset. When the active seat 12 is in the second position, the second to-position signal is configured to control the first electromagnet side 121 to be powered off and to be in position.

[0074] In the present embodiment, since both the first electromagnet sides 121 generate magnetic field when energized, and the relative distance between them changes as the movable seat 12 moves, the composite magnetic field strength sensed by the Hall sensor presents a continuous change related to the position. The control mainboard pre-labels specific magnetic field thresholds corresponding to the first position and the second position; when the movable seat 12 moves towards the first position, the composite magnetic field strength gradually increases (or decreases, depending on the polarity configuration), once the first threshold is reached, the Hall sensor outputs a first arrival signal to the control mainboard, which immediately cuts off the output of the reset control signal according to the first arrival signal, so that the first electromagnet side 121 is de-energized and the movable seat 12 stops at the first position. Similarly, during the movement of the movable seat 12 to the second position, the magnetic field strength change reaches the second threshold, the Hall sensor generates a second arrival signal, triggering the mainboard to disconnect the arrival control signal, and after the electromagnetic force disappears, the movable seat 12 is stably stopped at the second position. In this way, the position of the movable seat 12 is identified by the Hall sensor, not only avoiding the wear and risk of false triggering of the traditional mechanical limit switch, but more importantly, by identifying the arrival of the movable seat 12 at the first position or the second position, the control mainboard immediately disconnects the power supply of the electromagnet in the first electromagnet side 121, completely eliminating the no-load energy consumption of the electromagnetic coil after the movable seat 12 is stationary due to continuous energization, thereby concentrating the electric energy on the necessary charging and standby functions, effectively optimizing the total power distribution of the charging box system, and prolonging the overall endurance time.

[0075] In an embodiment of the present application, please refer to Figure 3 , Figure 4 and Figure 5 , the earphone charging box 100 further comprises at least two stoppers 14, each second position has at least one stopper 14; when the movable seat 12 is located at the second position, the side of the movable seat 12 opposite to each other can abut against at least one stopper 14.

[0076] In the present embodiment, the stopper 14 is fixed in the inner cavity of the earphone charging case 100 at a predetermined region corresponding to the second position, and is designed to provide an accurate end stop for the movement of the movable seats 12. The stopper 14 can be made of a rigid material such as high-hardness engineering plastic or lightweight metal alloy, and can be designed in a columnar, blocky or sheet-like structure, and is firmly integrated on the bottom wall of the charging case to ensure abutment with the mutually opposite sides of the two movable seats 12. When each movable seat 12 is driven by the electromagnetic force to move towards the second position, the mutually opposite sides of the movable seats 12 will eventually abut against the contact surface of the corresponding stopper 14, and the movement is physically blocked by rigid collision or elastic contact, thereby accurately defining the final stop position of the movable seats 12. Further, the contact surface of the stopper 14 can be covered with a buffer layer such as a rubber or polyurethane coating to absorb collision energy, reduce noise and reduce wear over time. In this way, the stopper 14 provides an absolute position reference for the movable seats 12 in the second position by mechanical limiting, effectively preventing positioning deviation caused by inertia or external disturbance, ensuring the complete alignment of the spare battery 13 with the earphone accommodating slot 11, and thereby ensuring the reliability of the connection (such as magnetic attraction and electrical contact) between the earphone and the spare battery 13; at the same time, the stopper 14 as a passive safety structure can still maintain the stable parking of the movable seats 12 after the electromagnetic drive system is powered off, reducing the dependence on the electronic locking system and improving the anti-interference ability and fault tolerance of the system.

[0077] In an embodiment of the present application, please refer to Figure 3 and Figure 4 Each first position has at least one stopper 14; when the movable seats 12 are located in the first position, the mutually facing sides of the movable seats 12 can abut against at least one stopper 14.

[0078] In the present embodiment, the stopper 14 is further provided at a predetermined region corresponding to the first position, which is used to limit the movement stop of the movable seats 12 in the first position. Specifically, please refer to Figure 3 A common stopper 14 can be provided in the central region between the two first positions, and when the two movable seats 12 are moved towards the first position by the attractive force, the mutually facing sides of the two movable seats 12 will simultaneously abut against both sides of the stopper 14, thereby achieving the movement stop of the two movable seats 12 in the first position. Please refer to Figure 4 Alternatively, an independent stopper 14 can be provided at each first position corresponding to each movable seat 12, and when each movable seat 12 is moved into position, the mutually facing sides of the two movable seats 12 will abut against one stopper 14 respectively, thereby achieving the movement stop of the two movable seats 12 in the first position.

[0079] Thus, the stop 14 provides the same mechanical positioning accuracy for the movable seat 12 in the first position as it is in the second position, ensuring the misalignment of the spare battery 13 and the earphone receiving slot 11, and guaranteeing the purpose of removing only the earphones. Simultaneously, by linking with the Hall sensor signal, the holding current of the first electromagnet side 121 can be immediately cut off after the movable seat 12 abuts against the stop 14 and triggers the positioning signal, achieving "power off upon positioning," further saving energy. Finally, these stop 14s can still effectively limit any slight movement of the movable seat 12 after the earphone charging case 100 is powered off. Together with the stop 14 in the second position, they constitute a complete, energy-independent mechanical positioning and safety holding system, significantly improving the structural reliability and stability of the entire charging case under conditions such as transportation, carrying, or accidental drops.

[0080] In one embodiment of the present invention, the stop member 14 located at the second position is made of a permanent magnet; The two movable seats 12 are defined as the opposite sides of each other as the second electromagnet side 122, which is configured to receive the first fixed signal. When the movable seat 12 is in the second position, the second electromagnet side 122 is energized. In the energized state, the second electromagnet side 122 is configured to receive the position fixing signal, and the second electromagnet side 122 is magnetically fixed to the stop member 14.

[0081] Understandably, when the movable seat 12 moves under electromagnetic force and impacts the stop 14 in the second position, its own kinetic energy may cause a momentary rebound or slight displacement. If this uncertainty occurs during the brief interval when the user removes the earphone, it may cause misalignment between the aligned spare battery 13 and the earphone, affecting the reliability of their connection.

[0082] Based on this, when the movable seat 12 moves to the second position and is confirmed to be in place by a Hall sensor or other detection unit, the control board of the earphone charging case 100 immediately executes a predetermined control program. The control program first controls the second electromagnet side 122 to enter the energized state, and then applies a brief position fixing signal to it (e.g., a pulse current lasting 0.5 to 1 second). Under the action of this signal, the second electromagnet side 122 instantaneously generates a magnetic field with the opposite polarity to the permanent magnet stop 14, and a magnetic attraction is formed between the second electromagnet side 122 and the stop 14, so that the movable seat 12 is firmly attracted and fixed to the stop 14. Through the above, the rebound or shaking caused by mechanical collision can be effectively eliminated, ensuring that the alignment state of the spare battery 13 and the earphone receiving slot 11 is rigidly maintained.

[0083] The position-fixing signal is set to an extremely short duration, meaning the earphone charging case 100 enters a specific energized state. The duration of the position-fixing signal only needs to cover the time from when the user observes the earphones to when they perform the removal action. Once this short signal ends, the second electromagnet side 122 is immediately de-energized, and the magnetic attraction is released. At this time, the movable seat 12 and the permanent magnet stop 14 maintain contact only through the weak residual magnetism of the permanent magnet and the friction of the mechanical contact surface, while the main, energy-consuming active magnetic attraction force has been removed. Through this "instantaneous locking and immediate power-off" mode, the locking function achieves its core purpose—ensuring positional stability at the moment of removal—while its power consumption of the earphone charging case 100 is reduced to a very low level, thus achieving the overall design goal of saving the total power of the charging case.

[0084] In this technical solution, without significantly increasing power consumption, the movable seat 12 is provided with transient adsorption force in the second position through electronically controlled magnetic attraction. This avoids the risk of functional failure caused by the positional displacement of the movable seat 12 during the operation time when the user needs to take out the earphones and the spare battery 13, thereby improving the overall reliability and user experience of the earphone charging case 100.

[0085] In one embodiment of the present invention, the earphone charging case 100 further includes a first locking component and a second locking component. Both the first locking component and the second locking component include a fixing member and a mating member. The fixing member of the first locking component and the second locking component is disposed on the bottom wall of the movable seat 12. The mating member of the first locking component is disposed at a first position in the earphone charging case 100. The mating member of the second locking component is disposed at a second position in the earphone charging case 100. In the first usage state, the fixing part of the first locking component is fixedly connected to the mating part of the first locking component; In the first usage state, the fixing part of the second locking component is fixedly connected to the mating part of the second locking component.

[0086] In this embodiment, the fixing parts of the first locking component and the second locking component are both permanent magnet coatings on the contact surfaces of the movable seat 12 and the bottom wall of the earphone charging case 100. The mating parts of the first locking component and the second locking component are both permanent magnet coatings on the contact surfaces of the bottom wall of the earphone charging case 100 and the bottom wall of the movable seat 12. The fixing parts and the mating parts have opposite magnetic properties. Specifically, when the movable seat 12 moves to the first position or the second position, the permanent magnet coating on its bottom wall will align with the permanent magnet coating pre-set at the corresponding position on the bottom wall of the earphone charging case 100. Since the permanent magnet coating of the movable seat 12 and the permanent magnet coating on the bottom wall of the earphone charging case 100 have opposite magnetic poles, a stable magnetic attraction force is generated between the movable seat 12 and the earphone charging case 100, thereby firmly fixing the movable seat 12 in the first position or the second position.

[0087] Since the attraction between permanent magnets is an inherent property of the material and can exist continuously without any external power supply, the movable seat 12 can be reliably locked for any length of time in either the first or second use state, completely eliminating static energy consumption for maintaining position. Simultaneously, the holding force provided by this magnetic locking is sufficient to overcome vibrations and shaking during daily carrying, ensuring absolute positional stability. In particular, the magnetic fixation of the second locking component ensures that after the user removes the spare battery 13, the unloaded movable seat 12 remains precisely in the second position, keeping the channel of the headphone accommodating slot 11 aligned with the entrance of the limiting cavity. This ensures that the user can subsequently and effortlessly return the spare battery 13 to the limiting cavity through the headphone accommodating slot 11, improving product reliability and user experience.

[0088] In one embodiment of the present invention, the movable seat 12 is provided with a first opening facing the bottom wall of the earphone charging case 100; the earphone charging case 100 is provided with a battery removal window and a shield, the battery removal window is located on the bottom wall of the earphone charging case 100, and the shield is provided on the battery removal window. When the active seat 12 is in the first position in the earphone charging case 100, the battery removal window is aligned and connected to the first opening.

[0089] In this embodiment, the movable seat 12 is a mid-frame structure, and the limiting cavity completely penetrates the movable seat 12 along the first direction, so that the end of the movable seat 12 facing the earphone receiving slot 11 is an open structure, and the end of the movable seat 12 facing the bottom wall of the earphone charging case 100 is also an open structure (i.e., forming the first opening); at the same time, the earphone charging case 100 is provided with a battery removal window and a shield. The projection of the battery removal window in the first direction is precisely aligned with the first opening at the bottom of the movable seat 12 in the first position. The battery removal window is provided with a shield, which can be a sliding cover, a flip-up door, or a soft silicone plug, etc., to close the battery removal window to prevent dust and debris from entering the charging case and to maintain the integrity of the product's appearance.

[0090] When the movable base 12 is in the first position (i.e., the charging case is in the first use state, and the spare battery 13 is misaligned with the earphone), the spare battery 13 is housed in the limiting cavity of the movable base 12. At this time, the battery removal window, the first opening at the bottom of the movable base 12, and the limiting cavity form a continuous channel along the first direction. If the user needs to remove or replace the spare battery 13 separately, he / she only needs to open the cover on the bottom wall to directly access and remove the spare battery 13 located in the limiting cavity through this channel, thereby meeting the user's need to "take out the earphones first for use, and then independently remove the spare battery 13 as needed".

[0091] The specific method of the backup battery connection control method is as described in the above embodiments. Since the earphone charging case 100 proposed in this invention adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0092] The present invention also proposes an earphone kit 1000, which includes wireless earphones 200 and an earphone charging case 100. The earphone charging case 100 is used to charge the wireless earphones 200. Please refer to [link to relevant documentation]. Figure 12 The bottom of the wireless earphone 200 is provided with a second charging contact 21 and a second magnetic structure 20. The second magnetic structure 20 can be attracted and fixed with the first magnetic structure 131 corresponding to the backup battery. The second charging contact 21 can be electrically connected with the first charging contact 132 corresponding to the backup battery. The specific structure of the earphone charging case 100 and the wireless earphone 200 refers to the above embodiment. The earphone charging case 100 is used to implement the backup battery connection control method of any of the above. Since the earphone kit 1000 proposed in the invention adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0093] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A backup battery connection control method, applied to an earphone charging case, characterized in that, The earphone charging case includes a backup battery and an earphone charging compartment. The earphone charging compartment is used to hold and charge the wireless earphones. The backup battery is movably disposed in the earphone charging case and can be removed to charge the wireless earphones. The method includes: Generate a backup battery connection signal; Based on the backup battery connection signal, control the backup battery to be fixedly connected to the wireless earphones located in the earphone charging case.

2. The method as described in claim 1, characterized in that, The step of generating the backup battery connection signal includes: Determine the current estimated availability of the wireless earphones; When the expected available time is less than a preset usage threshold, the backup battery connection signal is generated.

3. The method as described in claim 2, characterized in that, The preset usage threshold includes the expected usage time of the wireless earphones, and the expected usage time is: Receive schedule information sent by an electronic device communicatively connected to the earphone charging case; Based on the schedule information, the expected usage duration is determined.

4. The method as described in claim 3, characterized in that, The step of determining the expected usage duration based on the schedule information includes: Based on the schedule information, obtain the total usage time and usage event type identifier of the wireless earphone; By establishing a preset mapping relationship between event types and headphone usage ratios, the headphone usage ratio is determined based on the event type identifier. The expected usage time is determined based on the total usage time and the proportion of earphone usage.

5. The method as described in claim 2, characterized in that, The step of determining the current estimated availability of the wireless earphones includes: Obtain the actual battery level of the wireless earphone; Obtain the predicted power consumption per unit time of the wireless earphone in the subsequent target scenario; The estimated available duration is determined based on the actual power consumption and the predicted power consumption per unit time.

6. The method as described in claim 5, characterized in that, The step of obtaining the predicted power consumption per unit time of the wireless earphone in a subsequent target scenario includes: Based on the historical usage records of the wireless earphones, obtain all historical usage scenarios of the wireless earphones and the historical power consumption corresponding to each historical usage scenario; Based on the acquired context information, the subsequent target scene of the headphones is obtained; Based on the subsequent target scenario, determine the historical usage scenario and the historical power consumption corresponding to the historical usage scenario; Based on the historical power consumption, the predicted power consumption per unit time of the wireless earphone in the subsequent target scenario is obtained.

7. The method according to any one of claims 1 to 6, characterized in that, The earphone charging case also includes a movable base, a first position, and a second position. The spare battery is movably disposed on the movable base, which can move from the first position to the second position. When the movable base is in the second position, the spare battery can be fixedly connected to the wireless earphones located in the earphone charging case. The step of controlling the spare battery to be fixedly connected to the wireless earphones located in the earphone charging case according to the spare battery connection signal includes: Based on the backup battery connection signal, a positioning control signal is generated; The positioning control signal is input to the movable seat, driving the movable seat to move from the first position to the second position, so that the spare battery is fixedly connected to the wireless earphones located in the earphone charging case.

8. The method as described in claim 7, characterized in that, After the step of controlling the backup battery to be fixedly connected to the wireless earphones located in the earphone charging case according to the backup battery connection signal, the method further includes: Receive a first signal indicating that the backup battery has been returned to the movable seat and a second signal indicating that the wireless earphone has been returned to the earphone charging case; A reset control signal is generated based on the first position signal and the second position signal; The reset control signal is input to the movable seat, driving the movable seat to move from the second position to the first position, so that the spare battery is misaligned in the wireless earphone in the earphone charging case.

9. An earphone charging case for implementing the backup battery connection control method as described in any one of claims 1 to 8, characterized in that, The earphone charging case is equipped with a spare battery and an earphone charging compartment. The earphone charging compartment is used to hold and charge the wireless earphones. The spare battery is movably disposed in the earphone charging case. The earphone charging case has a first usage state. In the first usage state, the earphone charging case generates a backup battery connection signal to fix the backup battery to the wireless earphone located in the earphone charging case.

10. The earphone charging case as described in claim 9, characterized in that, The earphone charging case has a second usage state. In the second usage state, the earphone charging case generates a reset control signal to cause the spare battery to be misaligned in the wireless earphones in the earphone charging case.

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