Earphone charging control method and device and earphone

Abstract

The invention relates to an earphone charging control method and device and an earphone, and the method comprises the steps: obtaining the temperature of a battery of the earphone and the temperature of a mainboard, determining that the temperature of the battery exceeds a first preset temperature range, adjusting the charging power of the earphone according to the temperature of the battery, and determining that the temperature of the battery is within the first preset temperature range. And adjusting the charging power of the earphone according to the temperature of the mainboard. According to the invention, the heating values of the battery and the main board are effectively monitored, the charging power of the earphone is controlled by combining the temperature of the battery and the temperature of the main board, and the charging power of the earphone is dynamically adjusted, so that the temperature of the earphone can be controlled within a certain range, the overheating condition of the earphone is reduced, and the use performance of the earphone is improved.

Description

Technical Field

[0001] The present application relates to the field of earphone technology, and in particular to an earphone charging control method, device and earphone. Background Art

[0002] Headphones are a pair of conversion units that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers close to the ears. Headphones can be separated from the media player and connected via wired or wireless means, allowing you to listen to the sound without disturbing others and to isolate yourself from the surrounding environment.

[0003] With the development of electronic technology, portable rechargeable headphones are increasingly used. When using rechargeable headphones, users need longer battery life, larger battery capacity, and faster charging speed. To meet user needs, the charging rate of headphones is getting higher and higher. However, when the charging current is too large, the headphones will heat up more, and the temperature of the headphones will further increase. The headphones will overheat and affect the performance of the headphones. Summary of the invention

[0004] Based on this, it is necessary to provide a headphone charging control method, device and headphone to address the above technical problems, which can effectively reduce the temperature of the headphone and improve the performance of the headphone.

[0005] In a first aspect, the present application provides a method for controlling earphone charging, the method comprising:

[0006] Get the temperature of the headset battery and the temperature of the headset motherboard;

[0007] Determining that the temperature of the battery exceeds a first preset temperature range, and adjusting the charging power of the headset according to the temperature of the battery;

[0008] It is determined that the temperature of the battery is within the first preset temperature range, and the charging power of the headset is adjusted according to the temperature of the mainboard.

[0009] In a second aspect, the present application further provides an earphone charging control device, the device comprising:

[0010] A temperature acquisition module, used to acquire the temperature of the headset battery and the temperature of the headset motherboard;

[0011] A first power regulating module, configured to determine that the temperature of the battery exceeds a first preset temperature range, and to regulate the charging power of the headset according to the temperature of the battery;

[0012] The second power regulating module is used to determine that the temperature of the battery is within the first preset temperature range, and to regulate the charging power of the headset according to the temperature of the mainboard.

[0013] In a third aspect, the present application further provides an earphone, comprising a battery, a mainboard, a first temperature detection device, a second temperature detection device and a controller, wherein the battery is connected to the first temperature detection device, the mainboard is connected to the second temperature detection device, and both the first temperature detection device and the second temperature detection device are connected to the controller;

[0014] The first temperature detection device is used to detect the temperature of the battery and send it to the controller. The second temperature detection device is used to detect the temperature of the mainboard and send it to the controller. The controller is used to control the charging of the earphones according to the above method.

[0015] The above-mentioned earphone charging control method, device and earphone obtain the temperature of the earphone battery and the temperature of the mainboard, determine that the battery temperature exceeds the first preset temperature range, adjust the charging power of the earphone according to the battery temperature, determine that the battery temperature is within the first preset temperature range, and adjust the charging power of the earphone according to the temperature of the mainboard. By effectively monitoring the heat generated by the battery and the mainboard, the charging power of the earphone is controlled in combination with the temperature of the battery and the mainboard, and the charging power of the earphone is dynamically adjusted, so that the temperature of the earphone can be controlled within a certain range, reducing the occurrence of overheating of the earphone and improving the performance of the earphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a flow chart of a method for controlling earphone charging in an embodiment;

[0017] Figure 2 It is a schematic flow chart of the steps of adjusting the charging power of the earphone according to the temperature of the battery in one embodiment;

[0018] Figure 3 It is a schematic flow chart of the steps of adjusting the charging power of the earphone according to the temperature of the mainboard in one embodiment;

[0019] Figure 4 A schematic diagram of a flow chart of steps for controlling the charging rate of the earphone to be a high-speed charging rate in one embodiment;

[0020] Figure 5 is a flow chart of an earphone charging control method in another embodiment;

[0021] Figure 6 It is a flowchart of the steps of adjusting the charging power of the earphone according to the temperature of the charging bin in one embodiment;

[0022] Figure 7 A schematic diagram of a flow chart of the steps preceding the step of obtaining the temperature of a charging bin in an embodiment;

[0023] Figure 8A schematic diagram of the voltage of a charging management circuit and a lithium battery in one embodiment;

[0024] Fig. 9 is a schematic diagram of a structural block diagram of an earphone in an embodiment;

[0025] Fig.10 A schematic diagram of a detailed flow chart of a part of a method for controlling earphone charging in one embodiment;

[0026] Fig.11 A schematic diagram of a detailed flow chart of a part of a method for controlling earphone charging in another embodiment;

[0027] Fig.12 A schematic diagram of a detailed flow chart of a part of a method for controlling earphone charging in another embodiment;

[0028] Fig.13 is a structural block diagram of an earphone charging control device in one embodiment;

[0029] Fig.14 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] The earphone charging control method provided in the embodiment of the present application is used to control the charging process of the earphone. Among them, the earphone is a rechargeable earphone, for example, it can be a Bluetooth earphone. The earphone includes a battery and a mainboard, the battery can be arranged in the battery cavity, and the mainboard can be arranged in the mainboard cavity. The battery cavity is provided with a battery and related devices, and the mainboard cavity is used to be provided with a signal transceiver device and a speaker, etc., for playing sound. The mainboard cavity can also control the working state of the battery cavity. The earphone charging control method can be executed by a controller, and the controller can be a BT SOC (System on Chip) arranged in the mainboard cavity. Alternatively, when the earphone also includes a charging compartment, the controller can also be an MCU (Microcontroller Unit) arranged in the charging compartment. Alternatively, the controller can also be other chips that are connected to the BT SOC and the MCU for communication, as long as a person skilled in the art considers it can be implemented.

[0032] In one embodiment, Figure 1 As shown, a headset charging control method is provided, which is described by taking the method applied to a controller as an example, and includes the following steps:

[0033] Step 102, obtaining the temperature of the battery of the headset and the temperature of the mainboard of the headset.

[0034] The earphones include a battery and a mainboard, and the temperature of the battery is detected by a first temperature detection device. The battery can be arranged in a battery cavity, and a battery, a battery protection circuit and a first temperature detection device are arranged in the battery cavity. The battery is used to store electric energy and can be a lithium battery. The battery protection circuit is used to control the working state of the battery. The first temperature detection connects the battery and the controller, and is used to detect the temperature of the battery and send it to the controller. The first temperature detection device can be an NTC resistor.

[0035] The temperature of the mainboard can be detected by the second temperature detection device. The mainboard can be arranged in the mainboard cavity, and the battery cavity and the mainboard cavity are connected by a plurality of wires wrapped in a slender structure to realize power and signal transmission.

[0036] The mainboard cavity of the headset is provided with a mainboard, a charging management circuit, a BT SOC circuit, a speaker, an antenna and a second temperature detection device. Some or all of the components in the charging management circuit, the BT SOC circuit, the speaker, the antenna and the second temperature detection device can be set on the mainboard. The charging management circuit is used to control the charging process of the headset. The BT SOC circuit is the control center of the headset and can execute the headset charging control method of the present application. The speaker is used to play sound, and the antenna is used to send and receive signals. The second temperature detection device connects the mainboard and the controller, and is used to detect the temperature of the mainboard and send it to the controller. The second temperature detection device can be an NTC resistor. Generally, the headset includes a sound-emitting part and an ear hook part, the sound-emitting part is used to emit sound, and the ear hook part is used to facilitate the user to fix the position of the headset. The mainboard or the mainboard cavity is usually located in the sound-emitting part, and the battery or the battery cavity can be located in the sound-emitting part or the ear hook part.

[0037] The controller obtains the temperature of the battery through the first temperature detection device and obtains the temperature of the mainboard through the second temperature detection device. The controller can obtain the temperature of the battery and the mainboard in real time to monitor the temperature more comprehensively. The controller can also obtain the temperature of the battery and the mainboard at preset time intervals to reduce the workload.

[0038] Step 104: determine whether the temperature of the battery exceeds a first preset temperature range, and adjust the charging power of the earphone according to the temperature of the battery.

[0039] The first preset temperature range is a reasonable temperature range of the battery. If it is determined that the temperature of the battery exceeds the first preset temperature range, the temperature of the battery is considered abnormal at this time, and the charging power of the headset can be adjusted only according to the temperature of the battery, for example, the charging power of the headset is reduced to reduce the damage to the battery or other devices in the battery cavity caused by excessive charging power of the battery.

[0040] Step 106, determining that the temperature of the battery is within a first preset temperature range, and adjusting the charging power of the earphone according to the temperature of the mainboard.

[0041] If it is determined that the temperature of the battery is within the first preset temperature range, the battery temperature is considered normal at this time, and the charging power of the headset is further adjusted according to the temperature of the motherboard. For example, when the temperature of the motherboard is abnormal, the charging power of the headset is reduced to reduce the damage to the motherboard or other components in the motherboard cavity caused by excessive charging power of the motherboard.

[0042] Adjusting the charging power of the headset refers to adjusting the charging power of the battery of the headset. There is not only one way to adjust the charging power of the headset. For example, the charging power can be adjusted by adjusting the charging power, charging rate and charging voltage of the headset.

[0043] In the above-mentioned earphone charging control method, the charging power of the earphone is controlled by effectively monitoring the heat generated by the battery and the motherboard, combining the temperature of the battery and the temperature of the motherboard, and dynamically adjusting the charging power of the earphone, so that the temperature of the earphone can be controlled within a certain range, reducing the occurrence of earphone overheating and improving the performance of the earphone. The charging power of the earphone is controlled at two levels based on the temperature of the battery and the temperature of the motherboard. The temperature of the battery varies greatly and has a wide range of influence. The priority of the battery temperature is higher than the priority of the motherboard temperature, making the control of the charging power of the earphone more reasonable.

[0044] In one embodiment, the first preset temperature range is a range greater than the first temperature threshold and less than the second temperature threshold. Figure 2 As shown, step 104 includes step 204 and step 206 .

[0045] Step 204, determining that the temperature of the battery is greater than or equal to the third temperature threshold and less than or equal to the first temperature threshold, and controlling the charging rate of the earphone to be the first charging rate.

[0046] Among them, the third temperature threshold is less than the first temperature threshold, and the first temperature threshold is less than the second temperature threshold. It is determined that the temperature of the battery is greater than or equal to the third temperature threshold, and less than or equal to the first temperature threshold. Considering that the temperature of the battery is relatively normal at this time, charging can still be performed. At this time, the charging rate of the headset is controlled to be the first charging rate, and the headset is charged at the first charging rate. For example, the controller controls the working state of the charging management circuit to realize charging the battery at the first charging rate.

[0047] Step 206: determine that the temperature of the battery is greater than the second temperature threshold, or less than the third temperature threshold, and control the headset to stop charging.

[0048] If the battery temperature is greater than the second temperature threshold, the battery temperature is considered to be too high. If the battery temperature is less than the third temperature threshold, the battery temperature is considered to be too low. In both cases, the headset is controlled to stop charging to avoid further damage caused by charging when the battery temperature is abnormal.

[0049] Specifically, the values ​​of the first temperature threshold, the second temperature threshold and the third temperature threshold are not unique. For example, the first temperature threshold is 15°C, the second temperature threshold is 45°C, and the third temperature threshold is 0°C. The value of the first charging rate is also not unique, for example, it can be 0.2C. The temperature of the battery is represented by t1. Taking the controller as BT SOC as an example, when the temperature t1<0°C or t1>45°C, BTSOC controls the charging management circuit in the motherboard cavity of the headset to stop charging the battery. When 0°C<temperature t1<15°C, BTSOC controls the charging management circuit in the motherboard cavity of the headset to charge the battery at a charging rate of 0.2C.

[0050] In this embodiment, according to the relationship between the temperature of the battery and the first temperature threshold, the second temperature threshold and the third temperature threshold, the earphone is controlled to stop charging or to charge at the first charging rate to optimize the charging process of the earphone.

[0051] In one embodiment, the first preset temperature range is a range greater than the first temperature threshold and less than the second temperature threshold. Figure 3 As shown, in step 106, the charging power of the headset is adjusted according to the temperature of the mainboard, including step 306 and step 308. It can be understood that both step 306 and step 308 are performed under the premise that the temperature of the battery is within the first preset temperature range, that is, both step 306 and step 308 are performed under the premise that the temperature of the battery is greater than the first temperature threshold and less than the second temperature threshold.

[0052] Step 306, determining that the temperature of the mainboard is greater than the upper limit temperature, and controlling the charging rate of the earphone to be the first charging rate.

[0053] The upper limit temperature is greater than the second temperature threshold. The upper limit temperature is the maximum temperature allowed by the headset motherboard. In this step, it is determined that the temperature of the motherboard is greater than the upper limit temperature. Considering that the temperature of the battery is normal, but the temperature of the motherboard is high. In this case, the charging rate of the headset is controlled to be the first charging rate, and the headset is charged at a smaller charging rate to avoid excessive temperature rise.

[0054] Step 308, determine that the temperature of the mainboard is less than or equal to the upper limit temperature, and control the charging rate of the earphone to a high-speed charging rate.

[0055] The high-speed charging rate is greater than the first charging rate. In this step, it is determined that the temperature of the mainboard is less than or equal to the upper limit temperature, and it is considered that the temperature of the battery is normal and the temperature of the mainboard is also normal. In this case, the charging rate of the headset is controlled to be the high-speed charging rate, and the headset is charged at a larger charging rate to improve the charging efficiency.

[0056] In this embodiment, under the premise that the temperature of the battery is within the first preset temperature range, the relationship between the temperature of the mainboard and the upper limit temperature is further determined, and the charging rate of the headset is adjusted according to the relationship between the temperature of the mainboard and the upper limit temperature. If the temperature of the mainboard is determined to be greater than the upper limit temperature, the headset is charged at a smaller charging rate to avoid excessive temperature rise. If the temperature of the mainboard is determined to be less than or equal to the upper limit temperature, the headset is charged at a larger charging rate to improve the charging efficiency, thereby realizing intelligent charging.

[0057] In one embodiment, the high-speed charging rate includes a second charging rate and a third charging rate, and the second charging rate is less than the third charging rate. Figure 4 As shown, step 308 includes step 408 and step 410 .

[0058] Step 408, determining that the temperature of the mainboard is greater than or equal to the standard temperature and less than or equal to the upper limit temperature, and controlling the charging rate of the earphone to be the second charging rate.

[0059] The standard temperature is greater than the first temperature threshold and less than the second temperature threshold. The standard temperature is a preset human-perceived comfortable temperature.

[0060] In this step, it is determined that the temperature of the mainboard is greater than or equal to the standard temperature and less than or equal to the upper limit temperature. The temperature of the mainboard is considered to be within the normal range, but higher than the normal range. In this case, the charging rate of the headset is controlled to be the second charging rate, and the headset is charged at a smaller charging rate to avoid excessive temperature rise.

[0061] Step 410, determining that the temperature of the mainboard is greater than the first temperature threshold and less than the standard temperature, and controlling the charging rate of the earphone to be a third charging rate.

[0062] In this step, it is determined that the temperature of the mainboard is greater than the first temperature threshold and less than the standard temperature. It is considered that the temperature of the mainboard is within the normal range, but is lower than the normal range. In this case, the charging rate of the headset is controlled to be the third charging rate, and the headset is charged at a larger charging rate to increase the charging speed.

[0063] Exemplarily, the values ​​of the first temperature threshold, the second temperature threshold, the upper limit temperature and the standard temperature are not unique. For example, the first temperature threshold is 15°C, the second temperature threshold is 45°C, the upper limit temperature is 50°C, and the standard temperature is 40°C. The values ​​of the first charging rate, the second charging rate and the third charging rate are also not unique. For example, the first charging rate can be 0.2C, the second charging rate can be 1C, and the third charging rate can be 2.6C. The temperature of the motherboard is represented by t1, and the temperature of the battery is represented by t2. Taking the controller as BT SOC as an example, then: when 15°C < temperature t1 < 45°C, BTSOC combines temperature t2 to control the charging management circuit in the motherboard cavity in the headset to charge the battery at a charging rate of 1C or xC (x is a number greater than 0). Specifically, when temperature t2> upper limit temperature (default value 50°C), the charging rate of the headset battery is switched to 0.2C. When the standard temperature (default value 40℃) ≤ temperature t2 ≤ upper limit temperature (default value 50℃), the charging rate of the headphone battery is switched to 1C. When 15℃ < temperature t2 < standard temperature (default value 40℃), the charging rate of the headphone battery is switched to xC (x default value 26). When 0℃ ≤ temperature t2 ≤ 15℃, the charging rate of the headphone battery is switched to 0.2C. When temperature t2 ≤ 0℃, the headphone BTSOC controls the charging management circuit in the headphone motherboard cavity to stop charging the battery.

[0064] In this embodiment, under the premise that the temperature of the mainboard is less than or equal to the upper limit temperature, the magnitude relationship between the temperature of the mainboard and the standard temperature, the upper limit temperature and the first temperature threshold is further refined, and the charging rate of the headset is adjusted according to the magnitude relationship between the temperature of the mainboard and the standard temperature, the upper limit temperature and the first temperature threshold. When the temperature of the mainboard is determined to be equal to or greater than the standard temperature and less than or equal to the upper limit temperature, the headset is charged at a smaller charging rate to avoid excessive temperature rise. When the temperature of the mainboard is determined to be greater than the first temperature threshold and less than the standard temperature, the headset is charged at a larger charging rate to increase the charging speed.

[0065] In one embodiment, the earphones further include a charging compartment for storing the earphones. In addition, the charging compartment realizes data exchange and power transmission with the components in the mainboard cavity and the battery cavity. The charging compartment and the components in the mainboard cavity can be connected via a POGO PIN. Figure 5 As shown, the earphone charging control method further includes step 502 and step 504.

[0066] Step 502, obtaining the temperature of the charging compartment.

[0067] Among them, a battery, a battery protection circuit, an MCU, a charge and discharge circuit and a third temperature detection device are arranged inside the charging compartment. The battery is used to store electrical energy and can be a lithium battery. The battery protection circuit is used to control the working state of the battery. The third temperature detection is used to detect the temperature of the charging compartment and send it to the controller. The third temperature detection device can be an NTC resistor. The battery in the charging compartment is charged externally through the USB, and after conversion by the charge and discharge circuit, the battery in the battery cavity of the earphone is charged.

[0068] The controller obtains the temperature of the charging bin through the third temperature detection device. The controller can obtain the temperature of the charging bin in real time to monitor the temperature more comprehensively. The controller can also obtain the temperature of the charging bin at preset time intervals to reduce the workload.

[0069] Step 504, adjust the charging power of the earphones according to the temperature of the charging case.

[0070] The temperature of the charging bin will affect the working state of each component in the charging bin, thereby affecting the charging power of the earphones. When the earphones are placed in the charging bin, the temperature of the charging bin will also directly affect the temperature of the earphones. In this step, after obtaining the temperature of the charging bin, the charging power of the earphones is adjusted according to the temperature of the charging bin to achieve control of the temperature of the earphones and the charging bin.

[0071] Specifically, this step can be performed by a controller, which can be an MCU in the charging compartment. The controller is not the only way to adjust the charging power of the headset. For example, the MCU in the charging compartment controls its own output voltage so that the battery cavity and the motherboard cavity receive different voltages, and dynamically adjusts the heat generated by the charging management circuit, thereby realizing the charging compartment's control of the charging power of the headset.

[0072] In this embodiment, the temperature of the charging bin is obtained and the charging power of the battery is controlled in combination with the temperature of the charging bin. The heat generation of the charging management circuit in the mainboard cavity of the earphone is dynamically adjusted, thereby effectively improving the charging efficiency of the charging bin for the battery in the mainboard cavity of the earphone.

[0073] In one embodiment, Figure 6 As shown, step 504 includes step 604 , step 606 and step 608 .

[0074] Step 604, determine that the temperature of the charging bin is less than a third temperature threshold, and control the charging bin to stop charging the earphones.

[0075] It is determined that the temperature of the charging bin is less than the third temperature threshold, and the temperature in the charging bin is considered to be too low. In this case, the charging bin stops charging the earphone, and the output voltage V1 of the charging bin is 0V to avoid further damage caused by abnormal temperature of the charging bin.

[0076] Step 606, determine that the temperature of the charging case is greater than the upper limit temperature, and control the charging rate of the earphone to be the first charging rate.

[0077] Among them, the upper limit temperature is greater than the third temperature threshold. It is determined that the temperature of the charging bin is greater than the upper limit temperature, considering that the temperature inside the charging bin is too high. At this time, the charging rate of the earphones is controlled to be the first charging rate, and the earphones are charged at a smaller charging rate. The way to control the charging rate of the earphones to the first charging rate is not the only one. For example, the charging bin notifies the motherboard through the POGO PIN to charge the battery in the battery cavity at the first charging rate. Expandably, the charging bin can also limit its own output current to the first charging rate. At this time, the output voltage V1 of the charging bin defaults to 5V.

[0078] Step 608, determine that the temperature of the charging bin is greater than the third temperature threshold and less than the upper limit temperature, and adjust the output voltage of the charging bin.

[0079] It is determined that the temperature of the charging bin is greater than the third temperature threshold and less than the upper temperature limit, and the temperature of the charging bin is considered to be within a normal range. At this time, the output voltage of the charging bin is dynamically adjusted.

[0080] Specifically, there is not only one way to adjust the output voltage of the charging bin. For example, the MCU of the charging bin notifies the BT SOC in the mainboard cavity, and the charging rate of the earphones can be switched to a high-speed charging rate by the BT SOC based on its own rules. At this time, the output voltage V1 of the charging bin becomes an adjustable voltage (adjustable between 3.5V and 5V). The charging bin dynamically adjusts the output voltage of the charging bin according to the current charging voltage and charging current state of the earphone battery, thereby adjusting the output power of the charging bin.

[0081] In this embodiment, the charging power of the earphone is adjusted according to the temperature of the battery compartment and the third temperature threshold and the upper limit temperature. The temperature of the battery compartment is included in the influencing factors of the earphone charging control, which can improve the comprehensiveness of the earphone battery charging control method.

[0082] In one embodiment, Figure 7 As shown, before step 502, the earphone battery charging control method further includes steps 702 and 704.

[0083] Step 702, obtaining the charging current of the earphone.

[0084] Specifically, the charging current of the headset can be obtained by the MCU in the charging compartment. The acquisition method is that the MCU communicates with the BT SOC. When the charging management circuit in the motherboard cavity of the headset switches between different charging rates, the change in the charging current will be detected by the MCU of the charging compartment.

[0085] Step 704: determine whether the headset is in a constant current charging stage according to the charging current.

[0086] Specifically, when the current value of the charging current is stably maintained within a fluctuation range of less than 10%, it can be determined that the headset charging management circuit is in the constant current charging stage, that is, the headset is in the constant current charging stage. Every time the charging current of the headset changes suddenly (the current suddenly becomes 0 or exceeds ±10% of the current value), the MCU will communicate with the BT SOC of the headset through the POGO PIN to determine whether the headset is in the constant current charging stage.

[0087] Determine whether the earphone is in the constant current charging stage based on the charging current, execute step 502, obtain the temperature of the charging bin, and control the charging power of the earphone based on the temperature of the charging bin.

[0088] In this embodiment, the temperature of the charging bin is obtained only when the earphone is in the constant current charging stage, which can reduce the waste of resources caused by continuously monitoring the temperature of the charging bin.

[0089] Furthermore, in one embodiment, after step 704 and before step 502 , the earphone battery charging control method further includes step 706 .

[0090] Step 706, determine that the earphone is in the constant current charging stage and reduce the output voltage of the charging case.

[0091] The method of dynamically charging the earphones with the charging compartment is as follows: first define I as the output current of the charging compartment POGO PIN, Vb as the voltage of the earphone battery when charging, and Vh as the voltage difference when the earphone charging management circuit (or IC) works normally. Figure 8 As shown, Vh = Vin-Vout, Vh can usually be obtained by checking the technical specification of the charging management IC, or by laboratory testing methods.

[0092] When the charging bin detects that the earphone is in the charging bin, the charging bin first outputs a voltage of V1=5V±0.5V to the POGO PIN to charge the earphone. At this time, the charging bin MCU detects the output current I of the GOPO PIN through the ADC. When I is greater than 1C current and the current value is stable and maintains a fluctuation range of less than 10%, it can be known that the earphone charging management circuit is in the constant current charging stage. At this time, the charging bin reduces the output voltage of the POGO PIN, thereby reducing the input and output voltage difference of the earphone charging management circuit, thereby reducing the heat and power consumption of the charging management circuit itself and improving the efficiency of the charging bin to charge the earphone.

[0093] In one embodiment, a headset is provided, such as Fig. 9As shown, it includes a battery, a mainboard, a first temperature detection device, a second temperature detection device and a controller. The battery is connected to the first temperature detection device, the mainboard is connected to the second temperature detection device, and the first temperature detection device and the second temperature detection device are both connected to the controller. The first temperature detection device is used to detect the temperature of the battery and send it to the controller. The second temperature detection device is used to detect the temperature of the mainboard and send it to the controller. The controller is used to control the charging of the earphone according to the method of any of the above embodiments. The controller can be a BTSOC in the mainboard cavity and / or an MCU in the charging compartment.

[0094] In one embodiment, the earphone further includes a charging compartment, in which a third temperature detection device is disposed, and the third temperature detection device is connected to the controller.

[0095] In order to better understand the above embodiment, a detailed explanation is given below in conjunction with a specific embodiment. In one embodiment, the headset includes a charging compartment and a Bluetooth headset. The charging compartment charges the Bluetooth headset via a POGO PIN, and the charging compartment and the headset can also communicate bidirectionally via the POGO PIN.

[0096] The interior of the Bluetooth headset includes a battery cavity and a mainboard cavity. The two cavities are connected by a slender structure that wraps a number of wires. The battery is set in the battery cavity and can be a lithium battery. The battery cavity is equipped with a lithium battery, a lithium battery protection circuit and an NTC resistor (for detecting temperature). The mainboard is set in the mainboard cavity. The mainboard cavity of the headset is equipped with a mainboard, a charging management circuit, a BT SOC, a speaker, an antenna and an NTC resistor (for detecting temperature). The mainboard can be equipped with some or all of the components of the charging management circuit, BT SOC, a speaker, an antenna and an NTC resistor. The charging compartment is equipped with a lithium battery, a lithium battery protection circuit, an MCU circuit, a charging and discharging circuit (the charging compartment battery is charged externally through USB, and the Bluetooth headset is charged through circuit conversion) and an NTC resistor (for detecting temperature).

[0097] The earphone charging control method includes: first defining the battery temperature detected by the NTC resistor in the earphone battery cavity as t1, the mainboard temperature detected by the NTC in the mainboard cavity of the earphone as t2, and the charging bin temperature detected by the NTC resistor in the charging bin as t3. The temperatures of t1 and t2 are detected by the BT SOC of the earphone, and the temperature of t3 is detected by the MCU of the charging bin. When the earphone is placed in the charging bin for charging, the BT SOC and MCU begin to continuously detect the temperature changes of the three. When any of the temperatures exceeds the set range, the BT SOC and MCU will adjust the charging rate (defined here as xC, X can be any number greater than or equal to 0) and the charging input voltage value (defined here as v1, the charging bin output voltage is output by the MCU of the charging bin to control the boost circuit). Through t1, t2, and t3, the output power of the charging bin and the charging rate of the earphone can be accurately controlled, thereby controlling the temperature of the charging bin and the earphone during charging. Specifically:

[0098] In the earphone charging control method, the charging rate of the earphone battery controlled by BT SOC is controlled by two levels, t1 and t2, and t1 has a higher priority than t2. The specific steps include: first define t1 as the earphone battery temperature, t2 as the earphone motherboard temperature, x as the earphone charging rate, C as the capacity of the earphone battery in mAh, T0 as the human body perceived comfort temperature set for the earphone motherboard cavity, that is, the standard temperature, and Th as the maximum allowable temperature set for the earphone motherboard cavity, that is, the upper limit temperature.

[0099] like Fig.10 As shown, when the temperature t1<0℃ or t1>45℃, BTSOC controls the charging management circuit in the motherboard cavity of the headset to stop charging the battery. When 0℃<temperature t1<15℃, BTSOC controls the charging management circuit in the motherboard cavity of the headset to charge the battery with a charging rate of 0.2C. When 15℃<temperature t1<45℃, BTSOC controls the charging management circuit in the motherboard cavity of the headset to charge the battery with a charging rate of 1C or xC (x is a number greater than 0) in combination with temperature t2. Specifically, when temperature t2>upper limit temperature (default value 50℃), the charging rate of the headset battery is switched to 0.2C. When the standard temperature (default value 40℃)≤temperature t2≤upper limit temperature (default value 50℃), the charging rate of the headset battery is switched to 1C. When 15℃<temperature t2<standard temperature (default value 40℃), the charging rate of the headset battery is switched to xC (x default value 26). When 0℃≤temperature t2≤15℃, the charging rate of the earphone battery is switched to 0.2C. When the temperature t2≤0℃", the earphone BTSOC controls the charging management circuit in the earphone to stop charging the battery.

[0100] When the headphone charging management circuit switches between different charging rates (here referring to 0.2C, 1C, xC), the change in the magnitude of the charging current will be detected by the MCU of the charging case. Each time the charging current of the headphone mutates (the current suddenly becomes 0 or exceeds ±10% of the current value), the MCU will communicate with the headphone through the POGO PIN with the BT SOC of the headphone once to determine that the headphone is in the constant current charging stage and the charging current is greater than or equal to the 1C rate.

[0101] In the headphone charging control method, the method for the charging case to control the charging rate of the headphone and the output power of the charging case is as follows: First, define t3 as the temperature inside the charging case, and the voltage output by the POGO PIN of the charging case to charge the headphone is V1. As Fig.11 shown, when the temperature t3 < 0°C, the charging case stops outputting voltage to charge the headphone, and at this time, the V1 output is 0. When t3 > Th (default value 50) °C, the charging case notifies the BTSOC of the headphone to switch the charging rate to 0.2C, and at this time, the output voltage of the POGO PIN of the charging case is V1 (default value 5V). When 0°C < temperature t3 < Th (default value 50) degrees, the charging case notifies the BTSOC of the headphone that the charging rate of the headphone can be switched to 1C or xC according to the rules of the headphone itself. At this time, the output voltage V1 of the POGO PIN of the charging case becomes adjustable (adjustable between 3.5V and 5V), and the charging case will dynamically adjust the output voltage of the charging case according to the charging voltage and charging current of the current headphone battery, so as to adjust the output power of the charging case.

[0102] The method for the charging case to charge the headphone dynamically includes: First, define I as the output current of the POGO PIN of the charging case, Vb is the voltage of the headphone battery during charging, and Vh is the pressure difference when the headphone charging management circuit (or IC) works normally. As Figure 8 shown, Vh = Vin - Vout, and Vh can usually be obtained by referring to the technical specification of the charging management IC or by laboratory test methods.

[0103] As Fig.12 shown, when the charging case detects that the headphone is inside the charging case, the charging case first outputs a voltage of V1 = 5V ± 0.5V to the headphone through the POGO PIN to charge the headphone. At this time, the MCU of the charging case detects the output current I of the POGO PIN through the ADC. When I is greater than the 1C current and the current value is stably maintained within a fluctuation range of less than 10%, it can be known that the headphone charging management circuit is in the constant current charging stage. At this time, the charging case reduces the output voltage of the POGO PIN, thereby reducing the pressure difference between the input and output of the headphone charging management circuit, achieving the purpose of reducing the heat dissipation power consumption of the charging management circuit itself and improving the charging efficiency of the charging case to the headphone.

[0104] In the embodiment of the present application, the earphone battery and the earphone motherboard are separately monitored for temperature, and the temperature of the earphone during charging is controlled in two-level multi-stage temperature zones, and the charging rate is dynamically adjusted to achieve fast charging while the overall heat generation of the earphone is controlled within an acceptable range. Specifically, the NTC resistor connected to the earphone battery can effectively monitor the temperature t1 of the earphone battery to meet the safety requirements, and the NTC resistor connected to the earphone motherboard can effectively monitor the heat generation of the charging circuit itself on the motherboard to obtain the temperature t2. The combination of t1 and t2 can accurately control the relationship between the charging speed and charging temperature of the earphone, so as to achieve safe and fast charging. In addition, the temperature monitoring of the earphone and the temperature monitoring of the charging bin are linked to control the output voltage of the charging bin and the charging rate of the earphone together, so that the charging efficiency of the charging bin to the earphone is optimized. Specifically, the NTC resistor in the charging bin can effectively monitor the ambient temperature of the battery in the charging bin to meet the safety requirements, and dynamically adjust the output voltage V1 of the charging bin according to the temperature in the charging bin, that is, dynamically adjust the heat generation of the charging management circuit, and effectively improve the charging efficiency of the charging bin to the earphone.

[0105] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0106] Based on the same inventive concept, the embodiment of the present application also provides an earphone charging control device for implementing the earphone charging control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more earphone charging control device embodiments provided below can refer to the limitations of the earphone charging control method above, and will not be repeated here.

[0107] In one embodiment, Fig.13 As shown, a headset charging control device is provided, including: a temperature acquisition module 800, a first power adjustment module 810 and a second power adjustment module 820, wherein:

[0108] The temperature acquisition module 800 is used to acquire the temperature of the earphone battery and the temperature of the earphone mainboard;

[0109] A first power regulating module 810, configured to determine that the temperature of the battery exceeds a first preset temperature range, and to regulate the charging power of the earphone according to the temperature of the battery;

[0110] The second power regulating module 820 is used to determine that the temperature of the battery is within a first preset temperature range and regulate the charging power of the earphone according to the temperature of the mainboard.

[0111] In one embodiment, the first preset temperature range is a range greater than the first temperature threshold and less than the second temperature threshold. The first power regulation module is also used to determine that the battery temperature is greater than or equal to the third temperature threshold and less than or equal to the first temperature threshold, and control the charging rate of the earphone to be the first charging rate; the third temperature threshold is less than the first temperature threshold; determine that the battery temperature is greater than the second temperature threshold, or less than the third temperature threshold, and control the earphone to stop charging; the third temperature threshold is less than the first temperature threshold.

[0112] In one embodiment, the second power regulation module is also used to determine that the temperature of the mainboard is greater than the upper limit temperature, and control the charging rate of the earphone to be a first charging rate; the upper limit temperature is greater than the second temperature threshold; determine that the temperature of the mainboard is less than or equal to the upper limit temperature, and control the charging rate of the earphone to be a high-speed charging rate; the high-speed charging rate is greater than the first charging rate.

[0113] In one embodiment, the high-speed charging rate includes a second charging rate and a third charging rate, the second charging rate is less than the third charging rate, and the second power regulation module is also used to determine that the temperature of the mainboard is greater than or equal to the standard temperature and less than or equal to the upper limit temperature, and control the charging rate of the earphone to be the second charging rate; the standard temperature is greater than the first temperature threshold and less than the second temperature threshold; determine that the temperature of the mainboard is greater than the first temperature threshold and less than the standard temperature, and control the charging rate of the earphone to be the third charging rate.

[0114] In one embodiment, the earphone charging control device also includes a third power adjustment module, which is used to obtain the temperature of the charging bin; and adjust the charging power of the earphone according to the temperature of the charging bin.

[0115] In one embodiment, the third power regulation module is also used to determine that the temperature of the charging bin is less than a third temperature threshold, and control the charging bin to stop charging the earphones; determine that the temperature of the charging bin is greater than an upper limit temperature, and control the charging rate of the earphones to be a first charging rate; determine that the temperature of the charging bin is greater than the third temperature threshold and less than the upper limit temperature, and adjust the output voltage of the charging bin.

[0116] In one embodiment, the earphone charging control device also includes a constant current judgment module, which is used to obtain the charging current of the earphone before the third power regulation module obtains the temperature of the charging bin; judge whether the earphone is in the constant current charging stage according to the charging current; if so, the third power regulation module obtains the temperature of the charging bin.

[0117] In one embodiment, the earphone charging control device also includes a voltage regulation module, which is used to reduce the output voltage of the charging bin after the constant current judgment module determines whether the earphone is in the constant current charging stage according to the charging current and before the third power regulation module obtains the temperature of the charging bin.

[0118] Each module in the above-mentioned headphone charging control device can be implemented in whole or in part by software, hardware or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory in the computer device in the form of software, so that the processor can call and execute the corresponding operations of each of the above modules.

[0119] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig.14 As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a headphone charging control method is implemented.

[0120] Those skilled in the art will understand that Fig.14 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0121] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0122] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0123] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0124] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0125] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0126] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A headset charging control method, characterized in that: The method comprises: Get the temperature of the headset battery and the temperature of the headset motherboard; Determining that the temperature of the battery exceeds a first preset temperature range, and adjusting the charging power of the headset according to the temperature of the battery; It is determined that the temperature of the battery is within the first preset temperature range, and the charging power of the headset is adjusted according to the temperature of the mainboard.

2. The method according to claim 1, characterized in that The first preset temperature range is a range greater than a first temperature threshold and less than a second temperature threshold, and determining that the temperature of the battery exceeds the first preset temperature range and adjusting the charging power of the headset according to the temperature of the battery include: Determine that the temperature of the battery is greater than or equal to a third temperature threshold and less than or equal to the first temperature threshold, and control the charging rate of the headset to be the first charging rate; the third temperature threshold is less than the first temperature threshold; Determine that the temperature of the battery is greater than the second temperature threshold, or less than a third temperature threshold, and control the headset to stop charging; the third temperature threshold is less than the first temperature threshold.

3. The method according to claim 1, characterized in that The first preset temperature range is a range greater than a first temperature threshold and less than a second temperature threshold, and determining that the temperature of the battery is within the first preset temperature range and adjusting the charging power of the headset according to the temperature of the mainboard includes: Determine that the temperature of the mainboard is greater than the upper limit temperature, and control the charging rate of the headset to be a first charging rate; the upper limit temperature is greater than the second temperature threshold; Determine that the temperature of the mainboard is less than or equal to the upper limit temperature, and control the charging rate of the headset to be a high-speed charging rate; the high-speed charging rate is greater than the first charging rate.

4. The method according to claim 3, characterized in that The high-speed charging rate includes a second charging rate and a third charging rate, the second charging rate is less than the third charging rate, and the determining that the temperature of the mainboard is less than or equal to the upper limit temperature and controlling the charging rate of the headset to be the high-speed charging rate includes: Determine that the temperature of the mainboard is greater than or equal to the standard temperature and less than or equal to the upper limit temperature, and control the charging rate of the headset to be a second charging rate; the standard temperature is greater than the first temperature threshold and less than the second temperature threshold; It is determined that the temperature of the mainboard is greater than the first temperature threshold and less than the standard temperature, and the charging rate of the headset is controlled to be a third charging rate.

5. The method according to claim 1, characterized in that The method further comprises: Get the temperature of the headset charging case; The charging power of the earphone is adjusted according to the temperature of the charging compartment.

6. The method according to claim 5, characterized in that The adjusting the charging power of the earphone according to the temperature of the charging compartment includes: Determining that the temperature of the charging compartment is less than a third temperature threshold, and controlling the charging compartment to stop charging the headset; Determining that the temperature of the charging compartment is greater than an upper limit temperature, and controlling the charging rate of the headset to be a first charging rate; Determine that the temperature of the charging bin is greater than the third temperature threshold and less than the upper limit temperature, and adjust the output voltage of the charging bin.

7. The method according to claim 5, characterized in that Before obtaining the temperature of the charging compartment, the method further includes: Obtaining a charging current of the earphone; Determining whether the headset is in a constant current charging stage according to the charging current; If so, execute the step of obtaining the temperature of the charging bin.

8. The method according to claim 7, characterized in that After determining whether the headset is in a constant current charging stage according to the charging current, and before obtaining the temperature of the charging case, the method further includes: If so, reduce the output voltage of the charging station.

9. An earphone charging control device, characterized in that: The device comprises: A temperature acquisition module, used to acquire the temperature of the headset battery and the temperature of the headset motherboard; A first power regulating module, configured to determine that the temperature of the battery exceeds a first preset temperature range, and to regulate the charging power of the headset according to the temperature of the battery; The second power regulating module is used to determine that the temperature of the battery is within the first preset temperature range, and to regulate the charging power of the headset according to the temperature of the mainboard.

10. A headset, characterized in that: It includes a battery, a mainboard, a first temperature detection device, a second temperature detection device and a controller, wherein the battery is connected to the first temperature detection device, the mainboard is connected to the second temperature detection device, and both the first temperature detection device and the second temperature detection device are connected to the controller; The first temperature detection device is used to detect the temperature of the battery and send it to the controller, the second temperature detection device is used to detect the temperature of the mainboard and send it to the controller, and the controller is used to control the charging of the earphone according to the method described in any one of claims 1-8.

11. The earphone according to claim 10, characterized in that It also includes a charging compartment, in which a third temperature detection device is arranged, and the third temperature detection device is connected to the controller.

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