Method for controlling charging bin, charging bin and earphone assembly

Abstract

The invention provides a method for controlling a charging bin, the charging bin and an earphone assembly. The charging bin is provided with a containing part, a first device can be charged when located in the containing part, and the method for controlling the charging bin comprises the steps that the current battery voltage of the first device located in the containing part is obtained according to the preset interval time; determining a target charging voltage according to the current battery voltage of the first equipment; charging a battery of the first equipment according to the target charging voltage; wherein the target charging voltage is not smaller than a first voltage, the difference value between the target charging voltage and the first voltage is smaller than a preset threshold value, and the first voltage is the minimum voltage of a battery starting charging mode of the first device corresponding to the current battery voltage. According to the embodiment of the invention, accurate charging can be realized, the charging calorific value is small, the user experience is improved, the charging efficiency, safety and reliability are improved, the service life of the battery is protected, the hardware cost is reduced, and the potential safety hazard is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of charging bins, and in particular to a method for controlling a charging bin, a charging bin, and an earphone assembly. Background Art

[0002] Wireless headphones, especially true wireless stereo (TWS) headphones, are favored by many consumers due to their small size, portability, ease of use and lack of wires, and have been widely used in life and work. The charging bin, as a storage box and charger for current Bluetooth headsets, has become an essential accessory for Bluetooth headsets. Existing charging bins often generate high heat when charging Bluetooth headsets, and the charging chip heats up severely, causing the charging bin and headset to heat up, affecting the user experience. Higher heat also affects charging efficiency and may also affect the service life of the headset and charging bin.

[0003] There are many existing methods to reduce the heat generated during charging, such as adding a heat dissipation device to the structure, adding a heat sink to the circuit, selecting a better quality battery, or reducing the charging current. However, these methods of reducing the heat generated during charging in charging compartments have problems such as difficulty in space layout, increased R&D costs, or limited application scenarios. Summary of the invention

[0004] The present application provides a method for controlling a charging bin, a charging bin, and an earphone assembly, which are helpful to reduce charging heat and protect the battery life. The following is an introduction to various aspects of the present application.

[0005] In a first aspect, the present application provides a method for controlling a charging warehouse, wherein the charging warehouse has a accommodating portion, and a first device can be charged when it is in the accommodating portion, the method comprising: obtaining a current battery voltage of the first device in the accommodating portion according to a preset interval time; determining a target charging voltage according to the current battery voltage of the first device; charging the battery of the first device according to the target charging voltage; wherein the target charging voltage is not less than a first voltage, the difference between the target charging voltage and the first voltage is less than a preset threshold value, and the first voltage is the minimum voltage of the battery of the first device corresponding to the current battery voltage to start a charging mode.

[0006] In some possible implementations, determining the target charging voltage according to the current battery voltage of the first device includes: determining the target charging voltage according to the current battery voltage of the first device and a preset voltage difference.

[0007] In some possible implementations, the accommodating portion accommodates a plurality of electronic devices, the first device is any one of the plurality of electronic devices, and determining the target charging voltage based on a current battery voltage of the first device and a preset voltage difference includes: determining a second voltage based on a plurality of battery voltages corresponding to the plurality of electronic devices, the second voltage being a minimum value of the plurality of current battery voltages; and determining the target charging voltage based on the second voltage and the preset voltage difference.

[0008] In some possible implementations, one or more switches are provided in the multiple charging circuits corresponding to the charging bin and the multiple electronic devices, and the method further includes: in response to detecting that the total charging current is higher than a preset current threshold, controlling at least one of the one or more switches to be in an off state so that the reduced total charging current is less than or equal to the preset current threshold; after a preset period of time, controlling the at least one switch to be in an on state.

[0009] In some possible implementations, obtaining the current battery voltage of the first device in the accommodation portion according to a preset interval time includes: in response to satisfying the preset interval time, sending a request message to the first device, the request message being used to query the battery voltage information of the first device; and receiving a response message sent by the first device, the response message including the battery voltage information of the first device.

[0010] In some possible implementations, the method further includes: in response to detecting that a battery of the first device reaches a preset state of charge, stopping adjusting the target charging voltage.

[0011] In some possible implementations, the first device is a wireless headset or a hearing aid.

[0012] In the second aspect, the present application provides a charging warehouse, including: a accommodating portion, used to accommodate a first device, and the first device can be charged when it is in the accommodating portion; an acquisition module, used to obtain the current battery voltage of the first device in the accommodating portion according to a preset interval time; a determination module, used to determine a target charging voltage according to the current battery voltage of the first device, the target charging voltage is greater than or equal to a first voltage, and the first voltage is the minimum voltage of the battery of the first device corresponding to the current battery voltage to start the charging mode; a charging module, used to charge the battery of the first device according to the target charging voltage.

[0013] In a third aspect, the present application provides a charging warehouse, comprising: a memory for storing code; and a processor connected to the memory, for executing the code stored in the memory, so that the charging warehouse executes the method described in the first aspect.

[0014] In a fourth aspect, the present application provides an earphone assembly, including: a wireless earphone; and a charging compartment as described in the third invention, used to accommodate the wireless earphone and charge the wireless earphone.

[0015] In a fifth aspect, the present application provides a non-volatile computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, it can implement the method described in the first aspect.

[0016] In a sixth aspect, the present application provides a computer program product, which, when executed on an electronic device, enables the electronic device to implement the method described in the first aspect.

[0017] In the embodiment of the present application, the charging compartment obtains the current battery voltage of the first device according to a preset interval time, and then dynamically adjusts the charging voltage of the battery so that the charging voltage changes with the change of the current battery voltage of the first device, and is as close as possible to the minimum voltage that can just turn on the charging mode. The embodiment of the present application uses a software algorithm to reduce the voltage difference between the charging voltage and the voltage of the load battery in the charging compartment, which can meet the current size of normal charging, achieve precise charging, and generate little heat during charging, which helps to improve user experience. The embodiment of the present application helps to improve charging efficiency, safety and reliability, protect the service life of the battery, and compared with the method of reducing charging heat in the structure or circuit device, it helps to reduce hardware costs and reduce safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in describing the embodiments of the present application are briefly introduced below.

[0019] Figure 1 It is a flow chart of a method for reducing charging heat provided by related technology.

[0020] Figure 2 It is a flow chart of the method for controlling the charging warehouse provided in an embodiment of the present application.

[0021] Figure 3 yes Figure 2 A flowchart of a possible implementation of the method.

[0022] Figure 4 It is a circuit diagram of a charging bin.

[0023] Figure 5 yes Figure 2 A flowchart of another possible implementation of the method.

[0024] Figure 6 yes Figure 2A flowchart of another possible implementation of the method.

[0025] Figure 7 yes Figure 2 A flowchart of another possible implementation of the method.

[0026] Figure 8 This is a schematic diagram of the composition of a charging bin provided in an embodiment of the present application.

[0027] Fig. 9 This is a schematic diagram of a component unit / partial component unit of another charging bin provided in an embodiment of the present application.

[0028] Fig.10 It is a schematic diagram of the composition of an earphone assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with 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 of the embodiments. The same or similar reference numerals are used in the drawings to represent the same or similar modules. It should be understood that the drawings are only schematic, and the protection scope of the present application is not limited thereto.

[0030] Wireless earphones, especially true wireless stereo (TWS) earphones, are favored by many consumers due to their small size, portability, ease of use and freedom from wires. With the widespread use of Bluetooth earphones and TWS earphones, it is very common for consumers to use Bluetooth earphones in their daily lives and work, such as listening to music and making phone calls. In order to achieve the characteristics of being compact and portable, the design of the product must meet the characteristics of small appearance and low power consumption.

[0031] Most electronic devices rely on batteries to provide endurance. To increase the endurance of headphones while keeping the size small and the power consumption constant, the charging bin has become a storage box and charger for current Bluetooth headphones, and a must-have accessory for Bluetooth headphones. The charging bin and Bluetooth headphones can communicate with each other, and can realize functions such as opening the cover to start up, opening the cover to reconnect, and battery display.

[0032] Existing Bluetooth headset charging boxes often generate a lot of heat when charging Bluetooth headsets. The charging chip generates a lot of heat, causing the charging box and the headset to get hot, affecting the user experience. The high heat also affects the charging efficiency, and may also affect the service life of the headset and the charging box, and even pose certain safety hazards. In order to prevent these effects and hidden dangers, existing charging boxes reduce the charging heat from multiple directions, such as adding a heat dissipation device to the structure, or adding a heat sink to the circuit, or using a better quality battery, or reducing the charging current.

[0033] Figure 1 This is a flow chart of a method for reducing the heat generated by charging by reducing the charging current. Figure 1 As shown, the method of reducing the charging current and lowering the charging heat generation may mainly include steps S110 to S130, which are described in detail below.

[0034] In step S110, the temperature of the earphone is obtained.

[0035] In step S120, it is determined which pre-divided temperature segment the current temperature of the earphone belongs to. According to the temperature range, multiple temperature segments are divided in advance, and the temperature segment corresponding to the current temperature is found.

[0036] In step S130, the charging current of the temperature range is set. According to the preset stored mapping relationship or comparison table between each temperature range and the charging current, the charging current corresponding to the temperature range is determined, and the battery is charged.

[0037] Although this method can reduce the heat generated during charging to a certain extent, if the ambient temperature is high, the charging current will be set relatively small, and the charging time cannot be guaranteed. In addition, adding a heat dissipation device to the increasingly compact charging compartment will undoubtedly increase the design difficulty.

[0038] It can be seen that the current methods of reducing charging heat in charging warehouses have problems such as difficulty in spatial design and layout, increased R&D costs, or limited application scenarios.

[0039] It should be noted that the problem of increased cost and limited application scenarios of the method of reducing charging heat generated by the charging case of the earphones mentioned above is only an example. The embodiments of the present application can be applied to any type of scenario where the cost of reducing charging heat is high and the application is limited.

[0040] Therefore, it is necessary to design a technical solution that has good versatility and low cost to reduce the heat generated during charging.

[0041] Based on this, the embodiment of the present application proposes a method for controlling a charging bin. By using a software algorithm to reduce the voltage difference between the charging voltage and the voltage of the load battery in the charging bin, the normal charging current can be met, and the charging heat can be reduced to protect the battery life.

[0042] Combine the following Figure 1 The method for controlling the charging compartment in the embodiment of the present application is described in detail. The charging compartment is also called a charging box, and the charging compartment has a receiving portion. When the first device is in the receiving portion, it can be charged. The first device is also called a load. Figure 1As shown, the method for controlling the charging warehouse in an embodiment of the present application may mainly include steps S210 to S230, and these steps are described in detail below.

[0043] It should be pointed out that the size of the serial numbers of the steps in the embodiments of the present application does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0044] In step S210, the current battery voltage of the first device in the accommodation portion is obtained according to a preset interval time.

[0045] In the process of the battery changing from a low state of charge to a full state, the battery voltage is different. Usually, the voltage of the battery in a high state of charge is higher than the voltage in a low state of charge. The state of charge (SOC) of a battery is the ratio of the remaining capacity of the battery to its capacity in a fully charged state, usually expressed as a percentage. The type of battery can be a lithium battery, a lithium iron phosphate battery, a ternary lithium battery, a nickel metal hydride battery, a lead-acid battery, etc., which is not limited in the embodiments of the present application.

[0046] In some embodiments, the preset interval time may be a fixed value. The preset interval time may be set according to the application scenario, and the preset interval time may be, for example, 15 seconds, 30 seconds, 2 minutes, etc.

[0047] In other embodiments, the preset interval time may be a variable value. For example, the preset interval time may be negatively correlated with the state of charge of the battery of the first device. As the state of charge of the battery of the first device increases, the heat is accumulated, and the preset interval time may gradually decrease. This helps to improve the accuracy of the obtained battery voltage and the control accuracy.

[0048] In some implementations, the first device may be a wireless headset, a hearing aid, or a power bank.

[0049] In step S220, a target charging voltage is determined according to the current battery voltage of the first device.

[0050] The target charging voltage is not less than the first voltage, the difference between the target charging voltage and the first voltage is less than a preset threshold, and the first voltage is the minimum voltage of the battery of the first device corresponding to the current battery voltage to start the charging mode.

[0051] The charging case charges the first device, and its charging voltage needs to be higher than the battery voltage of the first device. Taking the first device as an earphone as an example, the charging case charges the earphone, and its charging voltage needs to be higher than the battery voltage of the earphone. If the voltage difference is too large, more heat will be generated. If the voltage difference is too small, the charging mode cannot be turned on and charging cannot be performed. Therefore, the charging voltage should be close to the minimum voltage of the battery to turn on the charging mode.

[0052] The preset threshold value may be an absolute value, such as 0.1 V or 0.2 V. The preset threshold value may also be a relative value, such as 1% or 2% of the first voltage value.

[0053] In some implementations, the target charging voltage may be equal to the first voltage. For example, if the current battery voltage of the first device is 3.5V, the minimum voltage of the battery corresponding to 3.5V when the charging mode is turned on is 3.9V, that is, the first voltage is 3.9V, then the target charging voltage may be 3.9V.

[0054] The current battery voltage has a certain mapping relationship with the corresponding minimum voltage for the battery to start the charging mode. The mapping relationship between the battery voltage and the minimum voltage (i.e., the first voltage) for the battery to start the charging mode can be determined by theoretical calculation or experimental measurement data. Usually, the output voltage of the charging terminal of the charging bin is not completely consistent with the charging voltage of the power receiving terminal of the battery of the first device, because there will be losses and voltage drops on the line of the charging path. Different charging paths have different line losses. Therefore, the mapping relationship between the battery voltage and the corresponding minimum voltage for the battery to start the charging mode is also related to the loss of the charging path. Experimental measurement data show that within a certain voltage range, the difference between the battery voltage and the minimum voltage for the battery to start the charging mode is relatively stable.

[0055] In some implementations, determining the target charging voltage according to the current battery voltage of the first device in step S220 may include: determining the target charging voltage according to the current battery voltage of the first device and a preset voltage difference. The value of the target charging voltage may be the sum of the current battery voltage value of the first device and the preset voltage difference. For example, the current battery voltage of the first device is 3.5V, and the minimum voltage of the battery of the first device corresponding to 3.5V to start the charging mode is 3.9V, that is, the first voltage is 3.9V, the preset voltage difference may be 0.5V, and the target charging voltage may be 4V. The method of determining the target charging voltage according to the current battery voltage of the first device and the preset voltage difference is simple and reliable.

[0056] In step S230, the battery of the first device is charged according to the target charging voltage.

[0057] In the embodiment of the present application, the charging compartment obtains the current battery voltage of the first device according to a preset interval time, and then dynamically adjusts the charging voltage of the battery so that the charging voltage changes with the change of the current battery voltage of the first device, and is as close as possible to the minimum voltage that can just turn on the charging mode. The embodiment of the present application uses a software algorithm to reduce the voltage difference between the charging voltage and the voltage of the load battery in the charging compartment, which can meet the current size of normal charging, achieve precise charging, and generate little heat during charging, which helps to improve user experience. The embodiment of the present application helps to improve charging efficiency, safety and reliability, protect the service life of the battery, and compared with the method of reducing charging heat in the structure or circuit device, it helps to reduce hardware costs and reduce safety hazards.

[0058] In some implementations, before obtaining the current battery voltage of the first device in the accommodation portion according to the preset interval time in step S210, the method of the embodiment of the present application may also include: confirming that the current battery voltage of the first device is lower than the voltage of the preset state of charge. Usually, when it is detected that the first device is in the accommodation portion of the charging box and the voltage of the battery of the first device is lower than the voltage of the preset state of charge, indicating that the battery is in a low-power state, the charging process will be automatically started.

[0059] In some implementations, the charging compartment can charge multiple electronic devices at the same time, that is, the accommodating portion can accommodate multiple electronic devices, and multiple electronic devices can be charged at the same time when they are in the accommodating portion, and the first device is any device among the multiple electronic devices. In order to reduce costs, the charge and discharge management chip of the charging compartment usually has only one charging voltage output, that is, multiple electronic devices share one charging voltage. However, the charge states of the batteries of multiple electronic devices are not the same. If the charging voltage is set too high, it is bound to cause serious heat. The above-mentioned method for determining the target charging voltage according to the current battery voltage and the preset voltage difference of the first device may include: determining a second voltage according to multiple battery voltages corresponding to multiple electronic devices, and the second voltage is the minimum value of the current multiple battery voltages; determining the target charging voltage according to the second voltage and the preset voltage difference. In this way, the charging voltage can ensure that the batteries with low charge states in multiple electronic devices are charged normally, and the batteries with high charge states are not charged. As the battery voltage gradually increases, the charging voltage is also increased. When the charging voltage increases to the voltage corresponding to the battery with high charge state to start the charging mode, the battery with high charge state also starts the charging mode. The heat generation is minimal during the entire charging process, and the charging current does not decrease. Finally, the batteries of multiple electronic devices can be fully charged.

[0060] In some implementations, the accommodation portion can accommodate multiple electronic devices, and the first device is any one of the multiple electronic devices. Before obtaining the current battery voltage of the first device in the accommodation portion according to the preset interval time in step S210, the method of the embodiment of the present application may also include: confirming that the current battery voltage of the first device is lower than the voltage of the preset state of charge. When it is detected that multiple electronic devices are in the accommodation portion of the charging box, and it is detected that the voltage of the battery of any electronic device among the multiple electronic devices is lower than the voltage of the preset state of charge, indicating that the battery is in a low-power state, the charging process will be automatically started.

[0061] In some implementations, the charging compartment can charge multiple electronic devices at the same time, and the first device is any one of the multiple electronic devices. One or more switches may be provided in the multiple charging circuits corresponding to the multiple electronic devices in the charging compartment, that is, some or all of the charging circuits in the multiple charging circuits are provided with corresponding switches. The charging voltage can ensure that the batteries with low charge states in the multiple electronic devices are charged normally, and the batteries with high charge states are not charged. As the battery voltage slowly increases, the charging voltage is also increased. When the charging voltage increases to the voltage corresponding to the battery with high charge state to turn on the charging mode, the battery with high charge state also turns on the charging mode. If multiple electronic devices are charged at the same time, the charging heat may be too large. The method of the embodiment of the present application may also include: if it is detected that the total charging current is higher than the preset current threshold, at least one switch of the one or more switches of the multiple charging circuits can be controlled to be in an off state, so that the total charging current after the reduction is less than or equal to the preset current threshold; after a preset time, the switch in the part of the charging circuit is controlled to be in an on state to charge the batteries of this part of the electronic devices. This can minimize the heat generated during the entire charging process, without reducing the charging current, and finally the batteries of multiple electronic devices can be fully charged, which can effectively reduce the heat generated during charging, protect the battery life, and reduce safety hazards.

[0062] The preset duration may be a fixed value, such as 3 minutes or 5 minutes. The size of the preset duration may also be adjustable. For example, the preset duration may be determined according to the specific number of multiple electronic devices. Specifically, in some embodiments, the preset duration may be positively correlated with the number of multiple electronic devices, that is, the more the number of multiple electronic devices, the longer the preset duration, so that some electronic devices in a high state of charge can be quickly fully charged for use. In other embodiments, the preset duration may also be negatively correlated with the number of multiple electronic devices, that is, the more the number of multiple electronic devices, the shorter the preset duration, so that the charge states of multiple electronic devices can be basically balanced.

[0063] In some implementations, the charging compartment can charge multiple electronic devices at the same time, and the first device is any one of the multiple electronic devices. One or more switches may be provided in the charging compartment and the multiple charging circuits of the multiple electronic devices, that is, some or all of the charging circuits in the multiple charging circuits are provided with corresponding switches. The method of the embodiment of the present application may also include: if it is detected that the current temperature is higher than the preset temperature threshold, at least one of the one or more switches in the multiple charging circuits may be controlled to be in an off state, that is, the switches in some charging circuits in the multiple electronic devices are controlled to be in an off state; if it is detected that the current temperature is lower than the preset temperature threshold, the switches in the part of the charging circuits are controlled to be in an on state, and the batteries of these electronic devices are charged. In this way, the heat generated during the entire charging process can be minimized, the charging current is not reduced, and finally the batteries of multiple electronic devices can be fully charged, which can effectively reduce the charging heat, protect the battery life, and reduce safety hazards.

[0064] In some implementations, obtaining the current battery voltage of a first device in a housing according to a preset interval time may include: in response to the current moment satisfying the preset interval time, sending a request message to the first device, the request message being used to query the battery voltage information of the first device; after receiving the request message, the first device sends the battery voltage information in the form of a response message; the charging compartment receives the response message sent by the first device, the response message including the battery voltage information of the first device.

[0065] In some implementations, the method of the embodiment of the present application may further include: in response to detecting that the battery of the first device reaches a preset state of charge, stopping adjusting the target charging voltage. The preset state of charge may be a fully charged state, or a preset 90% or 95% state of charge. For example, if the battery of the first device is not fully charged, the battery voltage is obtained periodically and the corresponding charging voltage is dynamically adjusted; if the battery of the first device is fully charged, the dynamic adjustment of the charging voltage is turned off. The charging voltage is dynamically adjusted repeatedly.

[0066] In the embodiment of the present application, the charging bin obtains the current battery voltage of the first device according to a preset interval, and then dynamically adjusts the charging voltage of the battery so that the charging voltage changes with the change of the current battery voltage of the first device, and is as close as possible to the minimum voltage that can just turn on the charging mode. The embodiment of the present application uses a software algorithm to reduce the voltage difference between the charging voltage and the voltage of the load battery in the charging bin, which can meet the current size of normal charging, achieve precise charging, and generate little heat during charging, which helps to improve user experience. The embodiment of the present application helps to improve charging efficiency, safety and reliability, protect the service life of the battery, and compared with the method of reducing the charging heat in the structure or circuit device, it helps to reduce hardware costs and reduce safety hazards. Taking the first device as a wireless headset as an example, combined with some possible implementation methods of this application, the method of controlling the charging bin in the embodiment of the present application is further explained.

[0067] Figure 3 yes Figure 2 A flow chart of a possible implementation of the method. Figure 3 As shown, the method for controlling the charging warehouse in an embodiment of the present application may mainly include steps S310 to S330, and these steps are described in detail below.

[0068] In step S310, there are earphones in the charging box and are being charged.

[0069] Usually, when it is detected that the earphone is in the receiving part of the charging box and the voltage of the earphone battery is lower than the voltage of the preset charge state, the charging process will be automatically started.

[0070] In step S320, the battery voltage of the earphone is obtained at a fixed time.

[0071] The current battery voltage of the headset is obtained according to a preset interval, and the preset interval may be, for example, 30 seconds, that is, the battery voltage of the headset is obtained every 30 seconds.

[0072] In step S330, the minimum charging voltage difference for starting the charging mode is maintained through a software algorithm.

[0073] The target charging voltage can be determined according to the current battery voltage of the headset and the preset voltage difference. For example, the current battery voltage of the headset is 3.5V, and the minimum voltage of the headset battery corresponding to 3.5V for starting the charging mode is 3.9V, that is, the first voltage is 3.9V, and the preset voltage difference can be 0.4V, then the target charging voltage can be 3.9V. The headset battery is charged according to the target charging voltage.

[0074] Figure 4 This is a circuit diagram of a headphone assembly. Figure 4As shown, the earphone assembly 400 may include a charging compartment 410, a left earphone 421, and a right earphone 422. The charging compartment 410 may include a controller 411 and a charge and discharge management chip 412. To reduce costs, the charge and discharge management chip 412 usually has only one charging voltage output, that is, the left earphone 421 and the right earphone 422 share one charging voltage output terminal. The main working process of the charging compartment 410 charging the left earphone 421 and the right earphone 422 is as follows:

[0075] The voltage value of the earphone battery is obtained every preset interval of N seconds (for example, 20 seconds), and the minimum voltage value of the left earphone 421 battery and the right earphone 422 battery is taken. A preset voltage difference that just turns on the charging mode is added to the minimum voltage value to obtain the final target charging voltage. The target charging voltage is output to the connection interface with the left earphone 421 and the right earphone 422, and the cycle is repeated. For example, the current battery voltage of the left earphone 421 is 3.6V, and the battery voltage of the right earphone 422 is 4.1V, then the minimum voltage value of the two is 3.6V, the preset voltage difference can be 0.4V, and the target charging voltage is equal to 4.0V (=3.6+0.4). The minimum voltage of the battery corresponding to 3.6V when the charging mode is turned on is also 4V. The charging voltage can ensure that the low-voltage left earphone 421 is charged normally, and the high-power right earphone 422 is not charged. As the voltage of the left earphone 421 slowly increases, the charging voltage is also adjusted higher. When the target charging voltage is adjusted to 4.4V, the voltage difference between the target charging voltage and the right earphone 422 also reaches 0.4V, and the right earphone 422 also starts the charging mode. At this time, the charging compartment 410 charges the left earphone 421 and the right earphone 422 at the same time. It can be seen that in this way, the heat generation is minimized during the entire charging process, the charging current does not decrease, and finally both the left and right earphones can be fully charged.

[0076] Figure 5 yes Figure 2 A flowchart of another possible implementation of the method. Figure 5 The method can be applied to Figure 4 The control process of dynamically adjusting the charging voltage is described by way of example by taking the first device as a wireless headset as an example. Figure 5 As shown, the method for controlling the charging warehouse in an embodiment of the present application may mainly include steps S510 to S550, and these steps are described in detail below.

[0077] In step S510, communicate with the headset to obtain its battery voltage.

[0078] When the periodic timing (preset interval time) is reached, a command requesting the battery voltage of the left and right earphones in the charging case is sent. The left and right earphones successfully respond to the command and send a response message including the current battery voltage information. The charging case obtains the current battery voltage of all earphones.

[0079] In step S520, the minimum voltage among the current battery voltages is compared.

[0080] In step S530, a preset voltage difference is added to the minimum voltage to obtain a target charging voltage, so that the target charging voltage is just the voltage corresponding to the current minimum battery voltage at which the battery can start the charging mode.

[0081] After comparison, the minimum voltage of the current battery voltage is obtained, and a minimum voltage difference (preset voltage difference) that can just start the headphone charging mode is added to this voltage. This minimum voltage can be a reliable value obtained through a large number of experimental tests to obtain a new target charging voltage.

[0082] In step S540, the charging voltage is reset.

[0083] The charging voltage is reset with this new target charging voltage value to charge the left and right earphones.

[0084] In step S550, the headset enters a normal charging mode.

[0085] According to the periodic timing time, enter the next cycle and go to step S510.

[0086] It can be seen that the charging voltage during the charging process can be understood as follows:

[0087] V-boost=V-min+△V

[0088] Among them, V-boost is the charging voltage output by the charging case; V-min is the minimum voltage of the left and right earphone batteries; △V is the preset voltage difference between the charging voltage and the battery voltage of the earphones.

[0089] In the embodiment of the present application, the charging bin obtains the current battery voltage of the first device according to a preset interval, and then dynamically adjusts the charging voltage of the battery so that the charging voltage changes with the change of the current battery voltage of the first device, and is as close as possible to the minimum voltage that can just turn on the charging mode. The embodiment of the present application uses a software algorithm to reduce the voltage difference between the charging voltage and the voltage of the load battery in the charging bin, which can meet the current size of normal charging, achieve precise charging, and generate little heat during charging, which helps to improve user experience. The embodiment of the present application helps to improve charging efficiency, safety and reliability, protect the service life of the battery, and compared with the method of reducing the charging heat in the structure or circuit device, it helps to reduce hardware costs and reduce safety hazards. Taking the first device as a wireless headset as an example, combined with some possible implementation methods of this application, the method of controlling the charging bin in the embodiment of the present application is further explained.

[0090] Figure 6 yes Figure 2A flowchart of another possible implementation of the method. Figure 6 The method can be applied to Figure 4 The charging case of the wireless headset is also used as an example for the first device. In order to ensure that the voltage difference between the charging voltage and the headset battery voltage is minimal, the control process can be: if the headset is not fully charged, the voltage of the headset battery is obtained regularly, and the charging voltage is dynamically adjusted through the software algorithm. If the headset is fully charged, the dynamic adjustment of the charging voltage is turned off, and the cycle is repeated. Specifically, Figure 6 As shown, the method for controlling the charging warehouse in an embodiment of the present application may mainly include steps S610 to S640, and these steps are described in detail below.

[0091] In step S610, the battery voltage of the earphone is obtained.

[0092] It is detected that the earphone is in the accommodation portion of the charging box, and the battery voltage of the earphone is obtained.

[0093] In step S620, it is determined whether the headset is fully charged.

[0094] If it is a single earphone, it is determined whether the battery voltage of the earphone is not lower than the voltage of the fully charged state (preset charge state) and whether it is fully charged. If it is not fully charged, it proceeds to step S630 to automatically start the charging process; if it is fully charged, it proceeds to step S640.

[0095] If there are two earphones, it is determined whether the battery voltage of the left and right earphones is not lower than the voltage of the fully charged state (preset charge state), and whether both are fully charged. If any earphone is not fully charged, the process proceeds to step S630 to automatically start the charging process; if both are fully charged, the process proceeds to step S640.

[0096] In step S630, the charging voltage is dynamically adjusted.

[0097] The specific method of dynamically adjusting the charging voltage can be referred to Figure 5 Steps S510 to S550 in .

[0098] In step S640, the charging voltage is turned off.

[0099] In the embodiment of the present application, the charging compartment obtains the current battery voltage of the first device at a preset interval, and then dynamically adjusts the charging voltage of the battery so that the charging voltage changes with the current battery voltage of the first device, and is as close as possible to the minimum voltage that can just start the charging mode. The embodiment of the present application can achieve precise charging, help improve charging efficiency, safety and reliability, reduce charging heat, and protect the battery life.

[0100] Figure 7 yes Figure 2 A flow chart of another possible implementation of the method. Figure 7 As shown, the method for controlling the charging warehouse in an embodiment of the present application may mainly include steps S710 to S790, and these steps are described in detail below.

[0101] In step S710, battery voltages of a plurality of electronic devices are acquired.

[0102] It is detected that a plurality of electronic devices are in the accommodation portion of the charging box, and a plurality of battery voltages corresponding to the plurality of electronic devices are obtained.

[0103] In step S720, it is determined whether the batteries of the plurality of electronic devices are fully charged.

[0104] If the batteries of the multiple electronic devices are all fully charged, the process proceeds to step S730. If the battery of any electronic device is not fully charged, the process proceeds to step S740 to automatically start the charging process.

[0105] In step S730, the charging voltage adjustment is turned off, or the charging process is not started.

[0106] In step S740, the minimum voltage of the battery is compared.

[0107] After comparison, the minimum voltage among the current battery voltages is obtained, and a minimum voltage difference (preset voltage difference) that can just start the battery charging mode is added to this voltage to obtain a new target charging voltage.

[0108] In step S750, the target charging voltage is determined and the charging voltage is reset.

[0109] The charging voltage is reset according to the new target charging voltage value to charge the batteries of multiple electronic devices.

[0110] In step S760, the plurality of electronic devices enter a charging mode.

[0111] In step S770, it is determined whether the total charging current of the plurality of electronic devices is greater than a preset current threshold. If it is greater than the preset current threshold, the process proceeds to step S780. If it is not greater than the preset current threshold, the process proceeds to step S710.

[0112] In step S780, switches of some charging circuits are turned off so that the total charging current is not greater than a preset current threshold.

[0113] In step S790, when the preset time is reached, the switches of some charging circuits are turned on, and the batteries of some electronic devices that have not been charged for a period of time are continuously charged, and the process proceeds to step S710.

[0114] In an embodiment of the present application, the charging compartment obtains the current battery voltages of multiple electronic devices according to a preset interval, determines the minimum value among the battery voltages of the multiple electronic devices, and then dynamically adjusts the charging voltage of the battery according to the minimum value, so that the charging voltage changes with the change of the current battery voltage of the electronic device, and is as close as possible to the minimum voltage that can just turn on the charging mode. In this way, the charging voltage can ensure that the batteries with low states of charge in multiple electronic devices are charged normally, and the batteries with high states of charge are not charged. As the battery voltage slowly increases, the charging voltage is also increased. When the charging voltage increases to the voltage corresponding to the battery with a high state of charge that turns on the charging mode, the battery with a high state of charge also turns on the charging mode. During the entire charging process, the heat generation is minimal, and the charging current does not decrease. Finally, the batteries of multiple electronic devices can be fully charged.

[0115] The embodiment of the present application reduces the voltage difference between the charging voltage and the voltage of the load battery in the charging compartment through a software algorithm, which can meet the normal charging current size, realize accurate charging, and generate less heat during charging, which helps to improve the user experience. The embodiment of the present application helps to improve charging efficiency, safety and reliability, protect the battery life, and compared with the method of reducing charging heat in the structure or circuit device, it helps to reduce hardware costs and reduce safety hazards.

[0116] Combination of the above Figure 1-Figure 7 The method embodiment of the present application is described in detail. Figures 8 to 10 The device embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0117] An embodiment of the present application also provides a charging compartment. Figure 8 Schematic diagram of the composition of a charging bin provided in an embodiment of the present application. Figure 8 As shown, the charging compartment 800 includes: a accommodating portion 810, an acquisition module 820, a determination module 830, and a charging module 840.

[0118] The accommodation portion 810 is used to accommodate a first device, and the first device can be charged when it is in the accommodation portion 810 .

[0119] The acquisition module 820 is used to acquire the current battery voltage of the first device in the accommodation portion according to a preset interval time.

[0120] The determination module 830 is used to determine a target charging voltage according to the current battery voltage of the first device. The target charging voltage is greater than or equal to a first voltage, and the first voltage is a minimum voltage of the first device corresponding to the current battery voltage when the battery starts the charging mode.

[0121] The charging module 840 is used to charge the battery of the first device according to the target charging voltage.

[0122] Optionally, the determination module 830 is used to determine the target charging voltage according to the current battery voltage of the first device and a preset voltage difference.

[0123] Optionally, the accommodating portion 810 can accommodate multiple electronic devices, and the first device is any one of the multiple electronic devices. The determining module 830 is used to determine the second voltage according to multiple battery voltages corresponding to the multiple electronic devices. The second voltage is the minimum value of the current multiple battery voltages; the target charging voltage is determined according to the second voltage and the preset voltage difference.

[0124] Optionally, the charging compartment further includes a switch module, which includes one or more switches arranged in multiple charging circuits corresponding to multiple electronic devices. The switch module is used to control at least one of the one or more switches to be in an off state in response to detecting that the total charging current is higher than a preset current threshold, so that the reduced total charging current is less than or equal to the preset current threshold; after a preset time, control at least one switch to be in an on state.

[0125] Optionally, the acquisition module 820 is used to send a request message to the first device in response to meeting a preset interval time, the request message is used to query the battery voltage information of the first device; receive a response message sent by the first device, the response message includes the battery voltage information of the first device.

[0126] Optionally, the charging compartment 800 further includes a stop module. The stop module is used to stop adjusting the target charging voltage in response to detecting that the battery of the first device reaches a preset state of charge.

[0127] Optionally, the first device is a wireless headset, a hearing aid, or a power bank.

[0128] Fig. 9 Schematic diagram of another component unit / partial component unit of a charging bin provided in an embodiment of the present application. Fig. 9 As shown, the charging compartment 900 may include: a memory 910 and at least one processor 920 .

[0129] The memory 910 is used to store codes or computer programs.

[0130] The processor 920 is connected to the memory 910 and is used to execute the code or computer program stored in the memory 910 to control the charging compartment 900 to execute any of the methods described above.

[0131] Exemplarily, the computer program may be divided into one or more modules / units, and one or more modules / units are stored in the memory 910 and executed by the processor 920 to complete the present application.

[0132] Those skilled in the art will understand that Fig. 9 This is only an example of the charging compartment 900 and does not constitute a limitation of the charging compartment. It may include more or fewer components than shown in the figure, or combine certain components, or different components. The charging compartment 900 provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0133] The processor 920 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc.

[0134] An embodiment of the present application also provides an earphone assembly. Fig.10 Schematic diagram of component units / partial component units of the earphone assembly provided in the embodiment of the present application. Fig.10 As shown, the earphone assembly 1000 may include: a wireless earphone 1020 and a charging compartment 900 as described above. The charging compartment 900 is used to accommodate the wireless earphone 1020 and charge the wireless earphone 1020.

[0135] An embodiment of the present application further provides a non-volatile computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0136] An embodiment of the present application provides a computer program product. When the computer program product runs on an electronic device, the electronic device can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0137] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above method embodiments, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above method embodiments can be implemented. Among them, the computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the camera / electronic device, recording medium, computer memory, read-only memory (ROM), random access memory (RAM), read-only compact disc (CD-ROM), magnetic tape, floppy disk and optical data storage device. The computer-readable storage medium mentioned in the present application can be a non-volatile storage medium, in other words, it can be a non-transient storage medium.

[0138] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0139] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0140] In the embodiments provided in the present application, it should be understood that the disclosed devices / equipment and methods can be implemented in other ways. For example, the device / equipment embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0141] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0142] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0143] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0144] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0145] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling a charging bin, characterized in that: The charging compartment has a receiving portion, and the first device can be charged when it is in the receiving portion, and the method includes: Acquire the current battery voltage of the first device in the accommodation portion according to a preset interval time; Determining a target charging voltage according to a current battery voltage of the first device; charging the battery of the first device according to the target charging voltage; The target charging voltage is not less than a first voltage, a difference between the target charging voltage and the first voltage is less than a preset threshold, and the first voltage is a minimum voltage of a battery of the first device corresponding to the current battery voltage to start a charging mode.

2. The method according to claim 1, characterized in that: The step of determining a target charging voltage according to a current battery voltage of the first device includes: The target charging voltage is determined according to the current battery voltage of the first device and a preset voltage difference.

3. The method according to claim 2, characterized in that The accommodating portion can accommodate a plurality of electronic devices, the first device is any one of the plurality of electronic devices, and determining the target charging voltage according to a current battery voltage of the first device and a preset voltage difference includes: Determine a second voltage according to a plurality of battery voltages corresponding to the plurality of electronic devices, wherein the second voltage is a minimum value among the plurality of current battery voltages; The target charging voltage is determined according to the second voltage and the preset voltage difference.

4. The method according to claim 3, characterized in that One or more switches are provided in the charging compartment and in the multiple charging circuits corresponding to the multiple electronic devices, and the method further includes: In response to detecting that the total charging current is higher than a preset current threshold, controlling at least one of the one or more switches to be in an off state so that the reduced total charging current is less than or equal to the preset current threshold; After a preset time period, the at least one switch is controlled to be in an on state.

5. The method according to claim 1, characterized in that The step of obtaining the current battery voltage of the first device in the accommodation portion according to the preset interval time includes: In response to meeting the preset interval time, sending a request message to the first device, where the request message is used to query the battery voltage information of the first device; A response message sent by the first device is received, where the response message includes battery voltage information of the first device.

6. The method according to claim 1, characterized in that The method further comprises: In response to detecting that the battery of the first device reaches a preset state of charge, the target charging voltage is stopped from being adjusted.

7. The method according to claim 1, characterized in that The first device is a wireless headset, a hearing aid, or a power bank.

8. A charging compartment, characterized in that: include: A receiving portion, used to receive a first device, wherein the first device can be charged when in the receiving portion; An acquisition module, configured to acquire a current battery voltage of the first device in the accommodation portion according to a preset interval; a determination module, configured to determine a target charging voltage according to a current battery voltage of the first device, wherein the target charging voltage is greater than or equal to a first voltage, and the first voltage is a minimum voltage of the battery of the first device corresponding to the current battery voltage when a charging mode is turned on; A charging module is used to charge the battery of the first device according to the target charging voltage.

9. A charging compartment, characterized in that: include: A memory for storing codes; A processor, connected to the memory, is used to execute the code stored in the memory so that the charging warehouse executes the method as described in any one of claims 1-7.

10. An earphone assembly, characterized in that: include: Wireless headphones; The charging case as described in claim 9 is used to accommodate the wireless headset and charge the wireless headset.

11. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed, the computer program is used to implement the method according to any one of claims 1 to 7.

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