WO2021068245A1 - Charging box, earphone, audio device and earphone charging control method - Google Patents

Charging box, earphone, audio device and earphone charging control method Download PDF

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Publication number
WO2021068245A1
WO2021068245A1 PCT/CN2019/110817 CN2019110817W WO2021068245A1 WO 2021068245 A1 WO2021068245 A1 WO 2021068245A1 CN 2019110817 W CN2019110817 W CN 2019110817W WO 2021068245 A1 WO2021068245 A1 WO 2021068245A1
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WIPO (PCT)
Prior art keywords
voltage
charging box
earphone
charging
battery
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PCT/CN2019/110817
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French (fr)
Chinese (zh)
Inventor
夏令东
高铭坤
黄健
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万魔声学科技有限公司
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Priority to PCT/CN2019/110817 priority Critical patent/WO2021068245A1/en
Publication of WO2021068245A1 publication Critical patent/WO2021068245A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones

Definitions

  • the invention relates to the field of earphones, in particular to a charging box, earphones, audio equipment and earphone charging control methods.
  • wireless earphones are more convenient to carry and wear than traditional wired earphones.
  • TWS true wireless Bluetooth earphones are becoming more and more popular and the technology is becoming more and more popular.
  • universal. Limited by ID and structure, the capacity of the wireless headset carrying battery is limited.
  • a charging box is usually provided. Both the headset and the charging box have electrical external ports. When the headset is placed in the charging box, once the electrical external ports of the two are connected, the charging box can charge the headset.
  • the headset judges whether the headset is currently outside the box or inside the box based on whether the external port detects the electrical signal, so as to automatically switch between sleep and working status.
  • the earphone external port is electrically connected to the charging box and a high-level signal is detected. The earphone recognizes that it is in the box.
  • the earphone automatically enters the sleep state and is charged; when the earphone is taken out of the box, the earphone external port is connected to the charging box.
  • the headset will recognize that it is outside the box.
  • the headset can automatically wake up from the sleep state, and then enter normal work, pairing or reconnecting Headphone status, so as to realize the intelligent switching of the headphone status.
  • the headset is placed in the charging box for charging, once the charging box is exhausted, at this time, although the headset is in the box, no electrical signal is detected, which mistakenly believes that the headset is currently outside the box and wakes up the headset. The user interaction is abnormal.
  • a charging box, earphones, audio equipment, and earphone charging control methods are provided.
  • a charging box for charging earphones placed in the charging box including:
  • the voltage modulation circuit is connected between the battery of the charging box and the external port of the charging box, modulates the voltage of the battery of the charging box, and outputs a modulated electrical signal to the earphone via the external port of the charging box.
  • the modulated electrical signal is used to notify the The headset enters the dormant state;
  • the first controller is respectively connected with the battery of the charging box and the voltage modulation circuit, and monitors the remaining power of the battery of the charging box;
  • the first controller controls the voltage modulation circuit to output a first voltage, and the first voltage is greater than or equal to the charging voltage of the earphone to charge the earphone and make the earphone maintain Hibernation
  • the first controller controls the voltage modulation circuit to output a second voltage, and the second voltage is less than the charging voltage of the earphone to stop charging the earphone and make the earphone maintain Sleep state.
  • the headset includes:
  • the second controller connected to the earphone external port, when it is monitored that the earphone external port receives the modulated electrical signal output by the charging box, it controls the earphone to enter the dormant state;
  • the charging management circuit is connected between the earphone external port and the earphone battery, and is used to determine whether the electrical signal received by the earphone external port is the first voltage or the second voltage. When it is the first voltage, it charges the earphone battery. At the second voltage, the headset battery is not charged, and the headset external port is electrically connected to the external port of the charging box.
  • An audio device including:
  • a charging box the charging box being any one of the above-mentioned charging boxes.
  • Earphones the earphones are the above-mentioned earphones.
  • a method for controlling charging of earphones including:
  • the first voltage is output at the external port of the charging box, and when the remaining power is less than the first set value, the first voltage is output from the charging box.
  • the port outputs a second voltage, where the first voltage is greater than or equal to the charging voltage of the headset, and the second voltage is less than the charging voltage of the headset
  • Figure 1 is a structural block diagram of a charging box in an embodiment of the application
  • FIG. 2 is a structural block diagram of a charging box in another embodiment of the application.
  • FIG. 3 is a specific circuit diagram of a charging box in an embodiment of the application.
  • FIG. 4 is a circuit diagram of a battery power detection circuit of a charging box in an embodiment of the application.
  • FIG. 5 is a structural block diagram of a headset used in conjunction with a charging box in an embodiment of the application
  • FIG. 6 is a flowchart of steps of a method for controlling charging of a headset in an embodiment of the application.
  • the present application relates to a charging box 100 for charging earphones placed in the charging box, and includes a voltage modulation circuit 110 and a first controller 120. It is understandable that the charging box is also equipped with a charging box battery, and the charging box is also provided with a charging box external port pogo pin1, and the charging box outputs electrical signals through the charging box external port pogo pin1.
  • the voltage modulation circuit 110 is connected between the battery of the charging box and the external port pogo pin1 of the charging box, modulates the voltage of the battery of the charging box, and outputs the modulated electrical signal to the earphone through the external port of the charging box.
  • the modulated electrical signal is used to notify the headset to enter the sleep state.
  • the first controller 120 is respectively connected to the charging box battery and the voltage modulation circuit 110, and is used to monitor the remaining power of the charging box battery and determine whether the remaining power is lower than the first set value: when the remaining power is greater than or equal to the first set value Value, the control voltage modulation circuit 110 outputs a first voltage from the external port pogo pin1 of the charging box.
  • the first voltage is greater than or equal to the charging voltage of the earphone to charge the earphone and keep the earphone in a dormant state; when the remaining power is less than the first setting
  • the control voltage modulation circuit 110 outputs a second voltage from the external port pogo pin1 of the charging box, and the second voltage is lower than the charging voltage of the earphone to stop charging the earphone and keep the earphone in a sleep state.
  • the above-mentioned first set value is a known value set in advance in the first controller 120, and can be set according to requirements, for example, it may be 5% of the total power.
  • the charging voltage required by the earphone is 5V
  • the first voltage is 5V
  • the second voltage is 4V.
  • the input voltage of the charging terminal needs to meet the charging voltage requirements of the earphones. For example, the commonly used charging voltage for earphones needs to reach 5V. If the voltage is lower than 5V, the earphones cannot be charged.
  • the charging box changes the output voltage according to the remaining power of the battery in the charging box.
  • the charging box is connected to the earphone to charge the earphone, the power of the battery in the charging box is consumed.
  • the first controller will monitor in real time. The remaining power of the charging box battery. When the remaining power is greater than or equal to the first set value, it means that the remaining power of the charging box battery is sufficient at this time, and the first voltage is output.
  • the first voltage reaches the charging voltage requirement, and the headset can be charged normally ;
  • the remaining power is lower than the first set value, it means that the remaining power of the battery in the charging box is insufficient at this time.
  • the second voltage is output, and the second voltage does not meet the requirements of the charging voltage, and the headset cannot be charged, that is, it is interrupted
  • the charging of the earphone is interrupted, there is still electrical signal output from the external port of the charging box, and the earphone will still detect the electrical signal. Therefore, the earphone can still remain dormant and will not wake up by mistake.
  • the voltage modulation circuit 110 includes a boost circuit 111 and a resistance adjustment circuit 112.
  • the boost circuit 111 is connected to the charging box battery and is used to boost the voltage of the charging box battery. deal with. Generally, the output voltage of the battery of the charging box is about 4V, and the charging voltage of the earphone needs to reach 5V. Therefore, to charge the earphone with the battery, the output circuit of the battery needs to be boosted to the charging voltage through the booster circuit.
  • the resistance adjustment circuit 112 is connected to the boost circuit 111 as the load resistance of the boost circuit 111; the resistance adjustment circuit 112 is also connected to the first controller 120, and the first controller 120 controls the resistance of the resistance adjustment circuit 112 according to the change in the remaining power.
  • the output voltage of the load resistance connected to the booster circuit 111 is different, so that when the remaining power is greater than or equal to the first set value, the voltage modulation circuit 110 is made to output the first voltage. When the value is lower than the first set value, the circuit modulation circuit 110 is caused to output the second voltage.
  • the aforementioned resistance adjusting circuit 112 specifically includes a first resistor R1, a second resistor R2, and a switch tube U1.
  • the first resistor R1 is connected between the output terminal of the boost circuit 111 and the ground, and the second resistor R2 is connected to the switch.
  • the tube U1 is connected in series to form a series branch.
  • the series branch is connected in parallel with the first resistor R1. Specifically, it can also be connected in series between the output terminal of the boost circuit 111 and the ground.
  • the control terminal of the switch tube U1 is connected to the first controller 120.
  • the first controller 120 controls the on and off of the series branch by controlling the on and off of the switching tube U1, thereby changing the size of the load resistance connected to the boost circuit 111, specifically: when the switching tube U1 is disconnected, only the first resistance R1 is used as a load resistance; when the switch tube U1 is turned on, the parallel resistance of the first resistance R1 and the second resistance R2 is used as the load resistance to reduce the load resistance, so that the external port pogo pin1 of the charging box outputs different electrical signals.
  • the resistance adjusting circuit 112 may further include a third resistor R3, and the third resistor R3 is connected between the first resistor R1 and the output terminal of the boost circuit 111.
  • the above-mentioned switch tube U1 may be an NMOS tube, a fourth resistor R4 is also connected between the control terminal and the output terminal of the NMOS tube, and the first controller 120 is connected to the control terminal of the NMOS through the fifth resistor R5.
  • a controller 120 controls the NMOS specifically as follows: when the control terminal of the NMOS tube is connected with a high-level signal, it is turned on, and when the control terminal of the NMOS tube is connected with a low-level signal, it is turned off.
  • the switch tube may also be a PMOS tube, and the control method of the PMOS tube is just opposite to that of the NMOS tube.
  • the number and resistance of the resistors in the resistance adjusting circuit 112 can be specifically set according to specific requirements, as long as the external port of the charging box can output the required first voltage or second voltage.
  • the boost circuit 111 may be a boost chip, that is, a boost IC.
  • a boost inductor L is connected in series between the input end of the boost chip and the battery of the charging box.
  • the battery of the charging box and the boost inductor are connected in series.
  • the connecting end of L is also connected to ground through a filter capacitor C1 for filtering.
  • parallel filter circuits C2 and C3 are also connected between the external port pogo pin1 of the charging box and the ground for filtering.
  • the battery of the charging box has a positive electrode and a negative electrode
  • the first controller 120 is connected to the battery to obtain the power of the battery.
  • the external port pogo pin1 of the charging box includes a high-potential port P1 and a low-potential port P2.
  • the voltage modulation circuit 110 is specifically connected to the positive electrode of the charging box battery and the high-potential port P1.
  • the low-potential port P2 is connected to the negative electrode of the battery in the charging box through a sampling resistor R6.
  • the earphone external port should also have two ports, the port P1' corresponding to the high-potential port P1, and the port P2' that is connected to the low-potential port P2.
  • the charging box When connected with the earphone, the positive current of the battery flows out through the high-potential port P1 and flows back to the negative electrode of the battery through the low-potential port P2, forming a closed loop with charging.
  • the negative electrode of the battery in the charging box is grounded, the sampling resistor R6 is connected between the low-potential port P2 and the ground, and the first controller 120 is also connected to the input terminal of the sampling resistor R6 to collect the sampling voltage of the sampling resistor R6.
  • the resistance value of the resistor R6 and the sampling voltage calculate the charging current, and calculate the remaining power of the battery in the charging box according to the charging current.
  • the first controller 120 is further configured to determine whether the remaining power exceeds the second set value during the period when the voltage modulation circuit 110 outputs the second voltage, and when the remaining power exceeds the second set value, control the voltage modulation circuit 110 The first voltage is output. In this embodiment, when the remaining power of the battery in the charging box is lower than the first set value, it indicates that the remaining power is insufficient. The external port of the charging box outputs the second voltage to the pogo pin1 and does not charge the earphones. During this period, the first control The device 120 will continue to monitor the change in the remaining power of the battery. When the battery is charged and its remaining power exceeds the second set value, it means that the battery has re-stored a certain amount of power.
  • the external port of the charging box is controlled to output pin1.
  • the first voltage continue to charge the headset.
  • the second set value ⁇ the first set value, which can be specifically set according to needs.
  • the first set value can be 5% of the total power
  • the second power can be 10% of the total power.
  • the present application also relates to an earphone.
  • the earphone is placed in a charging box 100 in the charging box.
  • the charging box 100 is the charging box 100 described above, and its structure has been described in detail above, and will not be repeated here.
  • the earphone 200 includes a second controller 210 and a charging management circuit 220. It is understandable that the charging box has a charging box external port pogo pin1, the earphone also has a corresponding earphone external port pogo pin2, and the earphone also has a headset battery.
  • the second controller 210 is connected to the earphone external port pogo pin2, and is used to monitor whether the earphone external port receives an electrical signal, and when the earphone external port pogo pin2 receives the first voltage or the second voltage, it controls the earphone to enter the sleep state , To reduce power consumption, when the earphone external port pogo pin2 does not receive an electrical signal, the earphone is controlled to wake up automatically.
  • the charging management circuit 220 is connected between the earphone external port pogo pin2 and the earphone battery. When the earphone is in a sleep state, the earphone battery is also charged and managed through the charging management circuit 220.
  • the charging management circuit 220 is used to determine whether the electrical signal of the earphone external port pogo pin2 is the first voltage or the second voltage, that is, whether the battery charging voltage requirement is met. When the electrical signal of the earphone external port pogo pin2 is the first voltage, the charging management The circuit 220 is in working state to charge the earphone battery; when the electrical signal of the earphone external port pogo pin2 is the second voltage, the second voltage is not enough to wake up the charging management circuit 220, and the charging management circuit 220 is in a sleep state and cannot charge the earphone battery. Recharge.
  • the above earphone used in conjunction with the above charging box, receives the second voltage of the charging box when the remaining power of the charging box is insufficient, thereby interrupting charging and continuing to maintain the dormant state, greatly reducing the power consumption rate of the charging box and increasing the charging box
  • the long battery life ensures that the headset can detect electrical signals in the charging box and will not wake up by mistake.
  • the present application also relates to an audio device, including an earphone and a charging box used in conjunction with the earphone, wherein the earphone and the charging box are both the earphone 200 and the charging box 100 introduced above, and will not be repeated here.
  • the charging box 100 monitors its own remaining power in real time. When the remaining power is sufficient, it outputs the first voltage to charge the earphone and keeps the earphone in a dormant state. When it is insufficient, the second voltage is output to the earphone, the charging of the earphone is stopped, and the earphone continues to maintain the dormant state. Therefore, even if the earphone is not charged, the earphone can still detect the second voltage to avoid false wakeup, and can increase the battery life of the charging box.
  • This application also relates to a headset charging control method. As shown in FIG. 6, the control method includes the following steps:
  • Step S610 The earphone is placed in the charging box, and the earphone external port is electrically connected to the charging box external port, and the earphone external port enters the dormant state when the modulated electrical signal output by the charging box is detected.
  • Step S620 Monitor the remaining power of the battery in the charging box, and when the remaining power is greater than or equal to the first set value, output a first voltage at the external port of the charging box, and when the remaining power is less than the first set value, The external port of the charging box outputs a second voltage, wherein the first voltage is greater than or equal to the charging voltage of the earphone, and the second voltage is lower than the charging voltage of the earphone.
  • the above headset charging control method monitors the remaining power of the charging box in real time during the process of charging the headset by the charging box.
  • the first voltage is output to charge the headset
  • the second voltage is output to stop.
  • both the first voltage and the second voltage can be used as the detection voltage to keep the headset in a sleep state. Therefore, even if charging is not performed, the headset can still detect the second voltage and avoid false wake-up.
  • charging can only be terminated when the charging box is low, and the battery life of the charging box is increased, ensuring that the headset is in the charging box and can detect the electrical signal of the charging box to avoid false wake-up.
  • the above method further includes:
  • Step S630 During the period when the external port of the charging box outputs the second voltage, monitor the remaining power of the battery of the charging box, and when the remaining power is greater than the second set value, control the external port of the charging box to output the first voltage, wherein The second setting value is greater than or equal to the first setting value, and step S620 is repeated.
  • the charging box When the earphone is placed in the charging box, the charging box is connected to the earphone and the earphone is charged with the first voltage, and the battery power of the charging box is consumed. At this time, enter the first stage: the charging box will determine whether the remaining power is lower than the first setting When the remaining power is greater than or equal to the first set value, the first voltage will be kept output, charge the headset and keep the headset in a sleep state, once the remaining power is lower than the first set value, the output voltage will be reduced to the second voltage , The charging is stopped, but the headset can still detect the second voltage and is in sleep state.
  • the second stage the charging box will determine whether the remaining power exceeds the second set value.
  • the second set value is set, the second voltage is kept output, and once the second set value is exceeded, the output voltage is increased to the first voltage, and the earphone continues to be charged, entering the first stage, and so on.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present application relates to a charging box, an earphone, an audio device and an earphone charging control method. The control method comprises: monitoring the remaining charge level of a storage battery of a charging box; when the remaining charge level is greater than or equal to a first set value, outputting a first voltage at an external port of the charging box, wherein the first voltage is greater than or equal to a charging voltage of an earphone, so as to charge the earphone, and making the earphone remain in a sleep state; and when the remaining charge level is less than the first set value, outputting a second voltage at the external port of the charging box, wherein the second voltage is lower than the charging voltage of the earphone so as to stop charging the earphone, and making the earphone remain in the sleep state.

Description

充电盒、耳机、音频设备及耳机充电控制方法Charging box, earphone, audio equipment and earphone charging control method 技术领域Technical field
本发明涉及耳机领域，尤其涉及一种充电盒、耳机、音频设备及耳机充电控制方法。The invention relates to the field of earphones, in particular to a charging box, earphones, audio equipment and earphone charging control methods.
背景技术Background technique
随着科技的发展，无线穿戴设备技术的成熟，无线耳机相较于传统的有线耳机，因其携带佩戴的方便，特别是TWS真无线蓝牙耳机，越来越人们的青睐，技术也越来越普及。受ID、结构限制，无线耳机携带电池容量有限，为增大续航时间及携带方便，通常会配套一个充电盒。耳机和充电盒均具有电外接端口，当耳机置于充电盒内，两者的电外接端口一旦连接，充电盒便可以为耳机充电。同时，为了达到较好的人机交互，耳机以其外接端口是否侦测到电信号为依据判断耳机当前是处于盒外还是盒内，从而自动进行休眠和工作状态切换的操作，若耳机置于盒内，耳机外接端口与充电盒电连接而侦测到高电平信号，耳机便识别处于盒内，此时，耳机自动进入休眠状态并进行充电；当耳机拿出盒外，耳机外接端口与充电盒断开连接而接收不到高电平信号，耳机便识别处于盒外，此时，不需要任何额外的操纵，耳机就可以自动从休眠状态中唤醒，然后进入正常工作，配对或回连耳机状态，从而实现耳机状态切换的智能化。然而，当耳机置于充电盒内充电时，一旦充电盒电量消耗殆尽，此时，耳机虽处于盒内，却侦测不到电信号，从而误认为耳机当前处于盒外而使耳机唤醒，用户交互出现异常。With the development of technology and the maturity of wireless wearable device technology, wireless earphones are more convenient to carry and wear than traditional wired earphones. Especially TWS true wireless Bluetooth earphones are becoming more and more popular and the technology is becoming more and more popular. universal. Limited by ID and structure, the capacity of the wireless headset carrying battery is limited. In order to increase the battery life and make it easier to carry, a charging box is usually provided. Both the headset and the charging box have electrical external ports. When the headset is placed in the charging box, once the electrical external ports of the two are connected, the charging box can charge the headset. At the same time, in order to achieve better human-computer interaction, the headset judges whether the headset is currently outside the box or inside the box based on whether the external port detects the electrical signal, so as to automatically switch between sleep and working status. Inside the box, the earphone external port is electrically connected to the charging box and a high-level signal is detected. The earphone recognizes that it is in the box. At this time, the earphone automatically enters the sleep state and is charged; when the earphone is taken out of the box, the earphone external port is connected to the charging box. When the charging box is disconnected and cannot receive a high-level signal, the headset will recognize that it is outside the box. At this time, without any additional manipulation, the headset can automatically wake up from the sleep state, and then enter normal work, pairing or reconnecting Headphone status, so as to realize the intelligent switching of the headphone status. However, when the headset is placed in the charging box for charging, once the charging box is exhausted, at this time, although the headset is in the box, no electrical signal is detected, which mistakenly believes that the headset is currently outside the box and wakes up the headset. The user interaction is abnormal.
发明内容Summary of the invention
根据本申请的各种实施例提供一种充电盒、耳机、音频设备及耳机充电 控制方法。According to various embodiments of the present application, a charging box, earphones, audio equipment, and earphone charging control methods are provided.
一种充电盒，用于对置于所述充电盒中的耳机充电，包括：A charging box for charging earphones placed in the charging box, including:
电压调制电路，连接于充电盒蓄电池与充电盒外接端口之间，调制充电盒蓄电池的电压，并经由充电盒外接端口向耳机输出经调制的电信号，所述经调制的电信号用于通知所述耳机进入休眠状态；及The voltage modulation circuit is connected between the battery of the charging box and the external port of the charging box, modulates the voltage of the battery of the charging box, and outputs a modulated electrical signal to the earphone via the external port of the charging box. The modulated electrical signal is used to notify the The headset enters the dormant state; and
第一控制器，分别与充电盒蓄电池和电压调制电路连接，监测充电盒蓄电池的剩余电量；The first controller is respectively connected with the battery of the charging box and the voltage modulation circuit, and monitors the remaining power of the battery of the charging box;
当所述剩余电量大于或等于第一设定值时，第一控制器控制电压调制电路输出第一电压，所述第一电压大于或等于耳机的充电电压以对耳机进行充电，并使得耳机维持休眠状态；When the remaining power is greater than or equal to the first set value, the first controller controls the voltage modulation circuit to output a first voltage, and the first voltage is greater than or equal to the charging voltage of the earphone to charge the earphone and make the earphone maintain Hibernation
当所述剩余电量小于所述第一设定值时，第一控制器控制所述电压调制电路输出第二电压，所述第二电压小于耳机的充电电压以停止对耳机充电，并使得耳机维持休眠状态。When the remaining power is less than the first set value, the first controller controls the voltage modulation circuit to output a second voltage, and the second voltage is less than the charging voltage of the earphone to stop charging the earphone and make the earphone maintain Sleep state.
一种耳机，置于上述充电盒中；A headset placed in the above charging box;
所述耳机包括：The headset includes:
第二控制器：与耳机外接端口连接，当监测到耳机外接端口接收到充电盒输出的经调制的电信号时，控制耳机进入休眠状态；及The second controller: connected to the earphone external port, when it is monitored that the earphone external port receives the modulated electrical signal output by the charging box, it controls the earphone to enter the dormant state; and
充电管理电路，连接于耳机外接端口和耳机电池之间，用于判断耳机外接端口接收到的电信号为第一电压还是第二电压，当为第一电压时，对耳机电池充电，当为第二电压时，不对耳机电池充电，所述耳机外接端口与充电盒外接端口电连接。The charging management circuit is connected between the earphone external port and the earphone battery, and is used to determine whether the electrical signal received by the earphone external port is the first voltage or the second voltage. When it is the first voltage, it charges the earphone battery. At the second voltage, the headset battery is not charged, and the headset external port is electrically connected to the external port of the charging box.
一种音频设备，包括：An audio device including:
充电盒，所述充电盒为上述任一项所述的充电盒；及A charging box, the charging box being any one of the above-mentioned charging boxes; and
耳机，所述耳机为上述耳机。Earphones, the earphones are the above-mentioned earphones.
一种耳机充电控制方法，包括：A method for controlling charging of earphones, including:
将耳机置于充电盒内，使耳机外接端口与充电盒外接端口电连接，耳机外接端口检测到充电盒输出的经调制的电信号时进入休眠状态；及Place the earphone in the charging box so that the earphone external port is electrically connected to the external port of the charging box, and the earphone external port enters the dormant state when it detects the modulated electrical signal output by the charging box; and
监测充电盒蓄电池的剩余电量，当所述剩余电量大于或等于第一设定值时，在充电盒外接端口输出第一电压，当所述剩余电量小于第一设定值时，在充电盒外接端口输出第二电压，其中，所述第一电压大于或等于耳机的充电电压，所述第二电压小于耳机的充电电压Monitor the remaining power of the battery in the charging box. When the remaining power is greater than or equal to the first set value, the first voltage is output at the external port of the charging box, and when the remaining power is less than the first set value, the first voltage is output from the charging box. The port outputs a second voltage, where the first voltage is greater than or equal to the charging voltage of the headset, and the second voltage is less than the charging voltage of the headset
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。The details of one or more embodiments of the present application are set forth in the following drawings and description. Other features, purposes and advantages of this application will become apparent from the description, drawings and claims.
附图说明Description of the drawings
为了更好地描述和说明这里公开的那些申请的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的申请、目前描述的实施例和/或示例以及目前理解的这些申请的最佳模式中的任何一者的范围的限制。In order to better describe and illustrate the embodiments and/or examples of those applications disclosed herein, one or more drawings may be referred to. The additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed applications, the currently described embodiments and/or examples, and the best mode of these applications currently understood.
图1为本申请一实施例中充电盒的结构框图；Figure 1 is a structural block diagram of a charging box in an embodiment of the application;
图2为本申请另一实施例中充电盒的结构框图；2 is a structural block diagram of a charging box in another embodiment of the application;
图3为本申请一实施例中充电盒的具体电路图；Figure 3 is a specific circuit diagram of a charging box in an embodiment of the application;
图4为本申请一实施例中充电盒蓄电池电量检测电路图；4 is a circuit diagram of a battery power detection circuit of a charging box in an embodiment of the application;
图5为本申请一实施例中与充电盒配合使用的耳机的结构框图；5 is a structural block diagram of a headset used in conjunction with a charging box in an embodiment of the application;
图6为本申请一实施例中耳机充电控制方法的步骤流程图。FIG. 6 is a flowchart of steps of a method for controlling charging of a headset in an embodiment of the application.
具体实施方式Detailed ways
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的首选实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使 对本申请的公开内容更加透彻全面。In order to facilitate the understanding of the application, the application will be described in a more comprehensive manner with reference to the relevant drawings. The preferred embodiment of the application is shown in the accompanying drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terminology used in the specification of the application herein is only for the purpose of describing specific embodiments, and is not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.
为了彻底理解本申请，将在下列的描述中提出详细步骤以及结构，以便阐释本申请提出的技术方案。本申请的较佳实施例详细描述如下，然而除了这些详细描述外，本申请还可以具有其他实施方式。In order to thoroughly understand this application, detailed steps and structures will be proposed in the following description to explain the technical solution proposed by this application. The preferred embodiments of the present application are described in detail as follows. However, in addition to these detailed descriptions, the present application may also have other implementation modes.
如图1所示，本申请涉及一种充电盒100，用于对置于充电盒中的耳机充电，包括电压调制电路110和第一控制器120。可以理解的，充电盒内还置有充电盒蓄电池，且充电盒还设有充电盒外接端口pogo pin1，充电盒通过充电盒外接端口pogo pin1输出电信号。As shown in FIG. 1, the present application relates to a charging box 100 for charging earphones placed in the charging box, and includes a voltage modulation circuit 110 and a first controller 120. It is understandable that the charging box is also equipped with a charging box battery, and the charging box is also provided with a charging box external port pogo pin1, and the charging box outputs electrical signals through the charging box external port pogo pin1.
其中，电压调制电路110连接于充电盒蓄电池与充电盒外接端口pogo pin1之间，调制充电盒蓄电池的电压，并经由充电盒外接端口向耳机输出经调制的电信号，从充电盒外接端口输出的经调制的电信号用于通知耳机进入休眠状态。Wherein, the voltage modulation circuit 110 is connected between the battery of the charging box and the external port pogo pin1 of the charging box, modulates the voltage of the battery of the charging box, and outputs the modulated electrical signal to the earphone through the external port of the charging box. The modulated electrical signal is used to notify the headset to enter the sleep state.
第一控制器120分别与充电盒蓄电池和电压调制电路110连接，用于监测充电盒蓄电池的剩余电量，并判断剩余电量是否低于第一设定值：当剩余电量大于或等于第一设定值时，控制电压调制电路110从充电盒外接端口pogo pin1输出第一电压，第一电压大于或等于耳机的充电电压以对耳机进行充电，并使得耳机维持休眠状态；当剩余电量小于第一设定值时，控制电压调制电路110从充电盒外接端口pogo pin1输出第二电压，第二电压低于耳机的充电电压以停止对耳机充电，并使得耳机维持休眠状态。需要说明的是，上述第一设定值为在第一控制器120内提前设定的一已知值，可根据需求自行设定，例如可以是总电量的5％等。在一实施例中，耳机所需的充电电压为5V，第一电压为5V，第二电压为4V。The first controller 120 is respectively connected to the charging box battery and the voltage modulation circuit 110, and is used to monitor the remaining power of the charging box battery and determine whether the remaining power is lower than the first set value: when the remaining power is greater than or equal to the first set value Value, the control voltage modulation circuit 110 outputs a first voltage from the external port pogo pin1 of the charging box. The first voltage is greater than or equal to the charging voltage of the earphone to charge the earphone and keep the earphone in a dormant state; when the remaining power is less than the first setting When the value is fixed, the control voltage modulation circuit 110 outputs a second voltage from the external port pogo pin1 of the charging box, and the second voltage is lower than the charging voltage of the earphone to stop charging the earphone and keep the earphone in a sleep state. It should be noted that the above-mentioned first set value is a known value set in advance in the first controller 120, and can be set according to requirements, for example, it may be 5% of the total power. In one embodiment, the charging voltage required by the earphone is 5V, the first voltage is 5V, and the second voltage is 4V.
对耳机进行充电时，充电端输入的电压需达到耳机充电电压的要求，比 如耳机常用的充电电压需达到5V，若电压低于5V，则无法对耳机进行充电。在本实施例中，充电盒就是根据充电盒蓄电池的剩余电量改变输出电压，当充电盒与耳机连接以对耳机充电时，消耗充电盒蓄电池的电量，在此期间，第一控制器会实时监测充电盒蓄电池的剩余电量，当剩余电量大于或等于第一设定值时，说明此时充电盒蓄电池的剩余电量充足，输出第一电压，第一电压达到充电电压的要求，可正常为耳机充电；当剩余电量低于第一设定值时，说明此时充电盒蓄电池的剩余电量不足，此时，输出第二电压，第二电压达不到充电电压的要求，不能为耳机充电，即中断耳机充电，增长充电盒蓄电池的续航时间。虽然耳机充电中断，但是充电盒外接端口仍有电信号输出，耳机仍然会侦测到电信号，因此，耳机仍能够保持休眠状态，不会进行误唤醒。When charging the earphones, the input voltage of the charging terminal needs to meet the charging voltage requirements of the earphones. For example, the commonly used charging voltage for earphones needs to reach 5V. If the voltage is lower than 5V, the earphones cannot be charged. In this embodiment, the charging box changes the output voltage according to the remaining power of the battery in the charging box. When the charging box is connected to the earphone to charge the earphone, the power of the battery in the charging box is consumed. During this period, the first controller will monitor in real time. The remaining power of the charging box battery. When the remaining power is greater than or equal to the first set value, it means that the remaining power of the charging box battery is sufficient at this time, and the first voltage is output. The first voltage reaches the charging voltage requirement, and the headset can be charged normally ; When the remaining power is lower than the first set value, it means that the remaining power of the battery in the charging box is insufficient at this time. At this time, the second voltage is output, and the second voltage does not meet the requirements of the charging voltage, and the headset cannot be charged, that is, it is interrupted Charge the earphones and increase the battery life of the charging box. Although the charging of the earphone is interrupted, there is still electrical signal output from the external port of the charging box, and the earphone will still detect the electrical signal. Therefore, the earphone can still remain dormant and will not wake up by mistake.
在一实施例中，如图2所示，电压调制电路110包括升压电路111和电阻调节电路112，其中，升压电路111与充电盒蓄电池连接，用于对充电盒蓄电池的电压进行升压处理。通常，充电盒蓄电池输出的电压约为4V，而耳机的充电电压需达到5V，因此，利用蓄电池对耳机充电，需先通过升压电路将其输出电路提升至充电电压。电阻调节电路112与升压电路111连接，作为升压电路111的负载电阻；电阻调节电路112还与第一控制器120连接，第一控制器120根据剩余电量的变化控制电阻调节电路112的阻值，从而改变升压电路111的负载电阻。可以理解的，升压电路111所接的负载电阻不同，其输出电压也会不同，由此实现：当剩余电量大于或等于第一设定值时，使电压调制电路110输出第一电压，当低于第一设定值时，使电路调制电路110输出第二电压。In an embodiment, as shown in FIG. 2, the voltage modulation circuit 110 includes a boost circuit 111 and a resistance adjustment circuit 112. The boost circuit 111 is connected to the charging box battery and is used to boost the voltage of the charging box battery. deal with. Generally, the output voltage of the battery of the charging box is about 4V, and the charging voltage of the earphone needs to reach 5V. Therefore, to charge the earphone with the battery, the output circuit of the battery needs to be boosted to the charging voltage through the booster circuit. The resistance adjustment circuit 112 is connected to the boost circuit 111 as the load resistance of the boost circuit 111; the resistance adjustment circuit 112 is also connected to the first controller 120, and the first controller 120 controls the resistance of the resistance adjustment circuit 112 according to the change in the remaining power. Value, thereby changing the load resistance of the boost circuit 111. It can be understood that the output voltage of the load resistance connected to the booster circuit 111 is different, so that when the remaining power is greater than or equal to the first set value, the voltage modulation circuit 110 is made to output the first voltage. When the value is lower than the first set value, the circuit modulation circuit 110 is caused to output the second voltage.
进一步的，上述电阻调节电路112具体包括第一电阻R1、第二电阻R2和开关管U1，其中，第一电阻R1连接于升压电路111的输出端和地之间，第二电阻R2与开关管U1串联形成串联支路，该串联支路与第一电阻R1并联，具体也可串联于升压电路111的输出端和地之间，开关管U1的控制端与第一控制器120连接，第一控制器120通过控制开关管U1的通断控制串联 支路的通断，从而改变与升压电路111连接的负载电阻的大小，具体为：当开关管U1断开时，仅第一电阻R1作为负载电阻；当开关管U1导通时，则以第一电阻R1和第二电阻R2的并联电阻作为负载电阻，降低负载电阻，从而使得充电盒外接端口pogo pin1输出不同的电信号。进一步的，电阻调节电路112还可包括第三电阻R3，第三电阻R3连接于第一电阻R1和升压电路111的输出端之间。具体的，上述开关管U1可为NMOS管，在NMOS管的控制端和输出端之间还连接有第四电阻R4，且第一控制器120通过第五电阻R5与NMOS的控制端连接，第一控制器120对NMOS的控制具体为：NMOS管控制端接入高电平信号时导通，NMOS管控制端接入低电平信号时截止。在其他实施例中，开关管也可为PMOS管，PMOS管的控制方式与NMOS管的控制方式刚好相反。在本实施例中，电阻调节电路112中的电阻的个数和阻值可以根据具体需求具体设定，只要能够使得充电盒外接端口输出所需的第一电压或第二电压即可。Further, the aforementioned resistance adjusting circuit 112 specifically includes a first resistor R1, a second resistor R2, and a switch tube U1. The first resistor R1 is connected between the output terminal of the boost circuit 111 and the ground, and the second resistor R2 is connected to the switch. The tube U1 is connected in series to form a series branch. The series branch is connected in parallel with the first resistor R1. Specifically, it can also be connected in series between the output terminal of the boost circuit 111 and the ground. The control terminal of the switch tube U1 is connected to the first controller 120. The first controller 120 controls the on and off of the series branch by controlling the on and off of the switching tube U1, thereby changing the size of the load resistance connected to the boost circuit 111, specifically: when the switching tube U1 is disconnected, only the first resistance R1 is used as a load resistance; when the switch tube U1 is turned on, the parallel resistance of the first resistance R1 and the second resistance R2 is used as the load resistance to reduce the load resistance, so that the external port pogo pin1 of the charging box outputs different electrical signals. Further, the resistance adjusting circuit 112 may further include a third resistor R3, and the third resistor R3 is connected between the first resistor R1 and the output terminal of the boost circuit 111. Specifically, the above-mentioned switch tube U1 may be an NMOS tube, a fourth resistor R4 is also connected between the control terminal and the output terminal of the NMOS tube, and the first controller 120 is connected to the control terminal of the NMOS through the fifth resistor R5. A controller 120 controls the NMOS specifically as follows: when the control terminal of the NMOS tube is connected with a high-level signal, it is turned on, and when the control terminal of the NMOS tube is connected with a low-level signal, it is turned off. In other embodiments, the switch tube may also be a PMOS tube, and the control method of the PMOS tube is just opposite to that of the NMOS tube. In this embodiment, the number and resistance of the resistors in the resistance adjusting circuit 112 can be specifically set according to specific requirements, as long as the external port of the charging box can output the required first voltage or second voltage.
在一实施例中，上述升压电路111具体可为升压芯片，即升压IC，升压芯片的输入端与充电盒蓄电池之间还串联有升压电感L，充电盒蓄电池与升压电感L的连接端还通过一滤波电容C1与地连接以进行滤波。进一步的，在充电盒外接端口pogo pin1与地之间也接有并联的滤波电路C2和C3进行滤波。In one embodiment, the boost circuit 111 may be a boost chip, that is, a boost IC. A boost inductor L is connected in series between the input end of the boost chip and the battery of the charging box. The battery of the charging box and the boost inductor are connected in series. The connecting end of L is also connected to ground through a filter capacitor C1 for filtering. Further, parallel filter circuits C2 and C3 are also connected between the external port pogo pin1 of the charging box and the ground for filtering.
可以理解的，充电盒蓄电池具有正极与负极，第一控制器120与蓄电池连接以获取蓄电池的电量，具体可以与蓄电池直接连接，也可以间接连接。在一具体的实施例中，如图4所示，上述充电盒外接端口pogo pin1包括高电位端口P1和低电位端口P2，上述电压调制电路110具体是连接于充电盒蓄电池正极与高电位端口P1之间，而低电位端口P2则通过一采样电阻R6与充电盒蓄电池的负极连接。可以理解的，与充电盒连接的耳机，其耳机外接端口也应当有两个端口，分别与为高电位端口P1对应的端口P1’，以及与低电位端口P2连接的端口P2’，当充电盒与耳机连接时，蓄电池正极电流通过高电位端口P1流出并通过低电位端口P2流回蓄电池负极，构成与充电闭合 回路。具体的，充电盒蓄电池的负极接地，采样电阻R6连接于低电位端口P2与地之间，第一控制器120还与采样电阻R6的输入端连接以采集采样电阻R6的采样电压，并根据采样电阻R6的阻值和采样电压计算出充电电流，根据充电电流计算出充电盒蓄电池的剩余电量。It is understandable that the battery of the charging box has a positive electrode and a negative electrode, and the first controller 120 is connected to the battery to obtain the power of the battery. Specifically, it may be directly connected to the battery or may be indirectly connected. In a specific embodiment, as shown in FIG. 4, the external port pogo pin1 of the charging box includes a high-potential port P1 and a low-potential port P2. The voltage modulation circuit 110 is specifically connected to the positive electrode of the charging box battery and the high-potential port P1. The low-potential port P2 is connected to the negative electrode of the battery in the charging box through a sampling resistor R6. It is understandable that for the earphone connected to the charging box, the earphone external port should also have two ports, the port P1' corresponding to the high-potential port P1, and the port P2' that is connected to the low-potential port P2. When the charging box When connected with the earphone, the positive current of the battery flows out through the high-potential port P1 and flows back to the negative electrode of the battery through the low-potential port P2, forming a closed loop with charging. Specifically, the negative electrode of the battery in the charging box is grounded, the sampling resistor R6 is connected between the low-potential port P2 and the ground, and the first controller 120 is also connected to the input terminal of the sampling resistor R6 to collect the sampling voltage of the sampling resistor R6. The resistance value of the resistor R6 and the sampling voltage calculate the charging current, and calculate the remaining power of the battery in the charging box according to the charging current.
在一实施例中，第一控制器120还用于在电压调制电路110输出第二电压期间，判断剩余电量是否超过第二设定值，当超过第二设定值时，控制电压调制电路110输出第一电压。在本实施例中，当充电盒蓄电池的剩余电量低于第一设定值时，说明剩余电量不足，充电盒外接端口pogo pin1输出第二电压，不给耳机充电，在此期间，第一控制器120还会继续监测蓄电池的剩余电量变化，当蓄电池得到充电，且其剩余电量超过第二设定值时，说明蓄电池又重新储蓄了一定的电量，此时，控制充电盒外接端口pogo pin1输出第一电压，继续对耳机进行充电。其中，第二设定值≥第一设定值，具体可根据需要设定，如第一设定值可为总电量的5％，第二电量可为总电量的10％。In an embodiment, the first controller 120 is further configured to determine whether the remaining power exceeds the second set value during the period when the voltage modulation circuit 110 outputs the second voltage, and when the remaining power exceeds the second set value, control the voltage modulation circuit 110 The first voltage is output. In this embodiment, when the remaining power of the battery in the charging box is lower than the first set value, it indicates that the remaining power is insufficient. The external port of the charging box outputs the second voltage to the pogo pin1 and does not charge the earphones. During this period, the first control The device 120 will continue to monitor the change in the remaining power of the battery. When the battery is charged and its remaining power exceeds the second set value, it means that the battery has re-stored a certain amount of power. At this time, the external port of the charging box is controlled to output pin1. The first voltage, continue to charge the headset. Wherein, the second set value ≥ the first set value, which can be specifically set according to needs. For example, the first set value can be 5% of the total power, and the second power can be 10% of the total power.
本申请还涉及一种耳机，如图5所示，该耳机置于充电盒内的充电盒100内。其中，充电盒100为上文介绍的充电盒100，其结构在上文已经具体介绍，在此不再赘述。耳机200包括第二控制器210和充电管理电路220。可以理解的，充电盒具有充电盒外接端口pogo pin1，耳机也具有与之对应的耳机外接端口pogo pin2，且耳机内也具有耳机电池。其中，第二控制器210与耳机外接端口pogo pin2连接，用于监测耳机外接端口是否接收到电信号，在当耳机外接端口pogo pin2接收到第一电压或第二电压时，控制耳机进行休眠状态，降低功耗，当耳机外接端口pogo pin2未接收到电信号时，则控制耳机自动唤醒。充电管理电路220连接于耳机外接端口pogo pin2和耳机电池之间，当耳机处于休眠状态的同时，还通过该充电管理电路220对耳机电池进行充电管理。充电管理电路220用于判断耳机外接端口pogo pin2的电信号是第一电压还是第二电压，即是否满足电池的充电电压要求，当耳机外接端口pogo pin2的电信号是第一电压时，充电管理电路220进行工作状态，对耳机电池 充电；当耳机外接端口pogo pin2的电信号是第二电压时，该第二电压不足以唤醒充电管理电路220，充电管理电路220处于休眠状态，不能对耳机电池充电。The present application also relates to an earphone. As shown in FIG. 5, the earphone is placed in a charging box 100 in the charging box. Among them, the charging box 100 is the charging box 100 described above, and its structure has been described in detail above, and will not be repeated here. The earphone 200 includes a second controller 210 and a charging management circuit 220. It is understandable that the charging box has a charging box external port pogo pin1, the earphone also has a corresponding earphone external port pogo pin2, and the earphone also has a headset battery. Wherein, the second controller 210 is connected to the earphone external port pogo pin2, and is used to monitor whether the earphone external port receives an electrical signal, and when the earphone external port pogo pin2 receives the first voltage or the second voltage, it controls the earphone to enter the sleep state , To reduce power consumption, when the earphone external port pogo pin2 does not receive an electrical signal, the earphone is controlled to wake up automatically. The charging management circuit 220 is connected between the earphone external port pogo pin2 and the earphone battery. When the earphone is in a sleep state, the earphone battery is also charged and managed through the charging management circuit 220. The charging management circuit 220 is used to determine whether the electrical signal of the earphone external port pogo pin2 is the first voltage or the second voltage, that is, whether the battery charging voltage requirement is met. When the electrical signal of the earphone external port pogo pin2 is the first voltage, the charging management The circuit 220 is in working state to charge the earphone battery; when the electrical signal of the earphone external port pogo pin2 is the second voltage, the second voltage is not enough to wake up the charging management circuit 220, and the charging management circuit 220 is in a sleep state and cannot charge the earphone battery. Recharge.
上述耳机，与上述充电盒配合使用，在充电盒剩余电量不足的情况下，接收到充电盒的第二电压，从而中断充电，并继续维持休眠状态，大大降低充电盒电量消耗速度，增长充电盒的续航能力，保证耳机在充电盒内能侦测到电信号而不会误唤醒。The above earphone, used in conjunction with the above charging box, receives the second voltage of the charging box when the remaining power of the charging box is insufficient, thereby interrupting charging and continuing to maintain the dormant state, greatly reducing the power consumption rate of the charging box and increasing the charging box The long battery life ensures that the headset can detect electrical signals in the charging box and will not wake up by mistake.
本申请还涉及一种音频设备，包括耳机和与耳机配合使用的充电盒，其中，耳机和充电盒均为上文介绍的耳机200和充电盒100，在此不再赘述。The present application also relates to an audio device, including an earphone and a charging box used in conjunction with the earphone, wherein the earphone and the charging box are both the earphone 200 and the charging box 100 introduced above, and will not be repeated here.
在本申请中，当耳机200置于充电盒100中时，充电盒100实时监测自身的剩余电量，当剩余电量充足时，输出第一电压给耳机充电，并使得耳机维持休眠状态，当剩余电量不足时，输出第二电压给耳机，中止给耳机充电，并使得耳机继续维持休眠状态。因此，即使耳机不进行充电，耳机仍能侦测到第二电压而避免误唤醒，且能增长充电盒的续航时间。In the present application, when the earphone 200 is placed in the charging box 100, the charging box 100 monitors its own remaining power in real time. When the remaining power is sufficient, it outputs the first voltage to charge the earphone and keeps the earphone in a dormant state. When it is insufficient, the second voltage is output to the earphone, the charging of the earphone is stopped, and the earphone continues to maintain the dormant state. Therefore, even if the earphone is not charged, the earphone can still detect the second voltage to avoid false wakeup, and can increase the battery life of the charging box.
本申请还涉及一种耳机充电控制方法，如图6所示，该控制方法包括以下步骤：This application also relates to a headset charging control method. As shown in FIG. 6, the control method includes the following steps:
步骤S610：将耳机置于充电盒内，使耳机外接端口与充电盒外接端口电连接，耳机外接端口检测到充电盒输出的经调制的电信号时进入休眠状态。Step S610: The earphone is placed in the charging box, and the earphone external port is electrically connected to the charging box external port, and the earphone external port enters the dormant state when the modulated electrical signal output by the charging box is detected.
步骤S620：监测充电盒蓄电池的剩余电量，当所述剩余电量大于或等于第一设定值时，在充电盒外接端口输出第一电压，当所述剩余电量小于第一设定值时，在充电盒外接端口输出第二电压，其中，所述第一电压大于或等于耳机的充电电压，所述第二电压小于耳机的充电电压。Step S620: Monitor the remaining power of the battery in the charging box, and when the remaining power is greater than or equal to the first set value, output a first voltage at the external port of the charging box, and when the remaining power is less than the first set value, The external port of the charging box outputs a second voltage, wherein the first voltage is greater than or equal to the charging voltage of the earphone, and the second voltage is lower than the charging voltage of the earphone.
上述耳机充电控制方法，在充电盒给耳机充电的过程中，实时监测充电盒的剩余电量，当剩余电量充足时，输出第一电压给耳机充电，当剩余电量不足时，输出第二电压，中止给耳机充电，第一电压和第二电压均能作为侦测电压，使耳机维持休眠状态。因此，即使不进行充电，耳机仍能侦测到第 二电压而避免误唤醒。通过上述充电控制方法，能够在充电盒电量低的时候，仅终止充电，增长充电盒的续航时间，保证耳机处于充电盒内能侦测到充电盒的电信号而避免误唤醒。The above headset charging control method monitors the remaining power of the charging box in real time during the process of charging the headset by the charging box. When the remaining power is sufficient, the first voltage is output to charge the headset, and when the remaining power is insufficient, the second voltage is output to stop. To charge the headset, both the first voltage and the second voltage can be used as the detection voltage to keep the headset in a sleep state. Therefore, even if charging is not performed, the headset can still detect the second voltage and avoid false wake-up. Through the above charging control method, charging can only be terminated when the charging box is low, and the battery life of the charging box is increased, ensuring that the headset is in the charging box and can detect the electrical signal of the charging box to avoid false wake-up.
在一实施例中，上述方法还包括：In an embodiment, the above method further includes:
步骤S630：在充电盒外接端口输出第二电压期间，监测充电盒蓄电池的剩余电量，当所述剩余电量大于第二设定值时，控制所述充电盒外接端口输出第一电压，其中，第二设定值大于或等于第一设定值，重复步骤S620。Step S630: During the period when the external port of the charging box outputs the second voltage, monitor the remaining power of the battery of the charging box, and when the remaining power is greater than the second set value, control the external port of the charging box to output the first voltage, wherein The second setting value is greater than or equal to the first setting value, and step S620 is repeated.
为了便于理解，以一个例子介绍上述耳机充电控制方法的控制逻辑。当耳机置于充电盒内，充电盒与耳机接通并以第一电压为耳机充电，充电盒蓄电池电量消耗，此时，进入第一阶段：充电盒会判断剩余电量是否低于第一设定值，当剩余电量大于或等于第一设定值，则保持输出第一电压，给耳机充电并使耳机维持休眠状态，一旦剩余电量低于第一设定值，则降低输出电压为第二电压，中止充电，然而耳机仍能侦测到第二电压并处于休眠状态，此时，进入第二阶段；第二阶段：充电盒又会判断剩余电量是否超过第二设定值，当未超过第二设定值时，保持输出第二电压，一旦超过第二设定值，便提高输出电压至第一电压，继续给耳机充电，进入第一阶段，如此循环。For ease of understanding, an example is used to introduce the control logic of the above headset charging control method. When the earphone is placed in the charging box, the charging box is connected to the earphone and the earphone is charged with the first voltage, and the battery power of the charging box is consumed. At this time, enter the first stage: the charging box will determine whether the remaining power is lower than the first setting When the remaining power is greater than or equal to the first set value, the first voltage will be kept output, charge the headset and keep the headset in a sleep state, once the remaining power is lower than the first set value, the output voltage will be reduced to the second voltage , The charging is stopped, but the headset can still detect the second voltage and is in sleep state. At this time, it enters the second stage; the second stage: the charging box will determine whether the remaining power exceeds the second set value. When the second set value is set, the second voltage is kept output, and once the second set value is exceeded, the output voltage is increased to the first voltage, and the earphone continues to be charged, entering the first stage, and so on.
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation manners of the present application, and their description is relatively specific and detailed, but they should not be understood as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims (11)

  1. 一种充电盒，用于对置于所述充电盒中的耳机充电，包括：A charging box for charging earphones placed in the charging box, including:
    电压调制电路，连接于充电盒蓄电池与充电盒外接端口之间，调制充电盒蓄电池的电压，并经由充电盒外接端口向耳机输出经调制的电信号，所述经调制的电信号用于通知所述耳机进入休眠状态；及The voltage modulation circuit is connected between the battery of the charging box and the external port of the charging box, modulates the voltage of the battery of the charging box, and outputs a modulated electrical signal to the earphone via the external port of the charging box. The modulated electrical signal is used to notify the The headset enters the dormant state; and
    第一控制器，分别与充电盒蓄电池和电压调制电路连接，监测充电盒蓄电池的剩余电量；The first controller is respectively connected with the battery of the charging box and the voltage modulation circuit, and monitors the remaining power of the battery of the charging box;
    当所述剩余电量大于或等于第一设定值时，第一控制器控制电压调制电路输出第一电压，所述第一电压大于或等于耳机的充电电压以对耳机进行充电，并使得耳机维持休眠状态；When the remaining power is greater than or equal to the first set value, the first controller controls the voltage modulation circuit to output a first voltage, and the first voltage is greater than or equal to the charging voltage of the earphone to charge the earphone and make the earphone maintain Hibernation
    当所述剩余电量小于所述第一设定值时，第一控制器控制所述电压调制电路输出第二电压，所述第二电压小于耳机的充电电压以停止对耳机充电，并使得耳机维持休眠状态。When the remaining power is less than the first set value, the first controller controls the voltage modulation circuit to output a second voltage, and the second voltage is less than the charging voltage of the earphone to stop charging the earphone and make the earphone maintain Sleep state.
  2. 如权利要求1所述的充电盒，其中，所述第一控制器还用于在所述电压调制电路输出第二电压期间，监测到所述剩余电量大于第二设定值时，控制所述电压调制电路输出第一电压；The charging box according to claim 1, wherein the first controller is further configured to control the remaining power when the remaining power is greater than a second set value during the period when the voltage modulation circuit outputs the second voltage. The voltage modulation circuit outputs the first voltage;
    其中，第二设定值大于或等于第一设定值。Wherein, the second set value is greater than or equal to the first set value.
  3. 如权利要求1所述的充电盒，其中，所述电压调制电路包括：The charging box of claim 1, wherein the voltage modulation circuit comprises:
    升压电路，与所述充电盒蓄电池连接，对所述充电盒蓄电池的电压进行升压处理；及A booster circuit, connected to the charging box battery, and boosting the voltage of the charging box battery; and
    电阻调节电路，分别与所述第一控制器和所述升压电路连接，根据所述第一控制器的控制信号调节所述升压电路的负载电阻，当所述剩余电量大于或等于所述第一设定值时，使所述电压调制电路输出第一电压，当低于所述第一设定值时，使所述电路调制电路输出第二电压。The resistance adjustment circuit is respectively connected with the first controller and the boost circuit, and adjusts the load resistance of the boost circuit according to the control signal of the first controller. When the remaining power is greater than or equal to the When the first set value is set, the voltage modulation circuit is made to output the first voltage, and when it is lower than the first set value, the circuit modulation circuit is made to output the second voltage.
  4. 如权利要求3所述的充电盒，其中，所述电阻调节电路包括：第一电阻、第二电阻和开关管，所述第一电阻连接于所述升压电路输出端和地之间； 所述第二电阻与所述开关管串联形成串联支路，所述串联支路与所述第一电阻并联，所述开关管的控制端与所述第一控制器连接。The charging box according to claim 3, wherein the resistance adjusting circuit comprises: a first resistance, a second resistance and a switch tube, and the first resistance is connected between the output terminal of the booster circuit and the ground; The second resistor is connected in series with the switch tube to form a series branch, the series branch is connected in parallel with the first resistor, and the control terminal of the switch tube is connected to the first controller.
  5. 如权利要求4所述的充电盒，其中，所述开关管为NMOS管。The charging box of claim 4, wherein the switch tube is an NMOS tube.
  6. 如权利要求3所述的充电盒，其中，所述升压电路为升压芯片。8. The charging box of claim 3, wherein the boost circuit is a boost chip.
  7. 如权利要求1所述的充电盒，其中，所述充电盒蓄电池具有正极和负极，所述充电盒外接端口包括高电位端口和低电位端口，所述电压调制电路连接于所述充电盒蓄电池正极与所述高电位端口之间，所述低电位端口通过一采样电阻与充电盒蓄电池负极连接，所述第一控制器与所述采样电阻连接以获取所述采样电阻的采样电压，并通过所述采样电压和采样电阻的阻值计算出所述充电盒蓄电池的剩余电量。The charging box according to claim 1, wherein the battery of the charging box has a positive electrode and a negative electrode, the external port of the charging box includes a high-potential port and a low-potential port, and the voltage modulation circuit is connected to the positive electrode of the battery of the charging box. Between the high-potential port and the high-potential port, the low-potential port is connected to the negative electrode of the charging box battery through a sampling resistor, and the first controller is connected to the sampling resistor to obtain the sampling voltage of the sampling resistor and pass the sampling resistor. The sampling voltage and the resistance of the sampling resistor are used to calculate the remaining power of the battery in the charging box.
  8. 一种耳机，置于权利要求1至7任一项所述的充电盒中；A headset placed in the charging box according to any one of claims 1 to 7;
    所述耳机包括：The headset includes:
    第二控制器：与耳机外接端口连接，当监测到耳机外接端口接收到充电盒输出的经调制的电信号时，控制耳机进入休眠状态；及The second controller: connected to the earphone external port, when it is monitored that the earphone external port receives the modulated electrical signal output by the charging box, it controls the earphone to enter the dormant state; and
    充电管理电路，连接于耳机外接端口和耳机电池之间，用于判断耳机外接端口接收到的电信号为第一电压还是第二电压，当为第一电压时，对耳机电池充电，当为第二电压时，不对耳机电池充电，所述耳机外接端口与充电盒外接端口电连接。The charging management circuit is connected between the earphone external port and the earphone battery, and is used to determine whether the electrical signal received by the earphone external port is the first voltage or the second voltage. When it is the first voltage, it charges the earphone battery. At the second voltage, the headset battery is not charged, and the headset external port is electrically connected to the external port of the charging box.
  9. 一种音频设备，包括：An audio device including:
    充电盒，所述充电盒为权利要求1至7任一项所述的充电盒；及A charging box, the charging box being the charging box according to any one of claims 1 to 7; and
    耳机，所述耳机为权利要求8所述的耳机。Earphones, the earphones are the earphones according to claim 8.
  10. 一种耳机充电控制方法，包括：A method for controlling charging of earphones, including:
    将耳机置于充电盒内，使耳机外接端口与充电盒外接端口电连接，耳机外接端口检测到充电盒输出的经调制的电信号时进入休眠状态；及Place the earphone in the charging box so that the earphone external port is electrically connected to the external port of the charging box, and the earphone external port enters the dormant state when it detects the modulated electrical signal output by the charging box; and
    监测充电盒蓄电池的剩余电量，当所述剩余电量大于或等于第一设定值时，在充电盒外接端口输出第一电压，当所述剩余电量小于第一设定值时，在充电盒外接端口输出第二电压，其中，所述第一电压大于或等于耳机的充 电电压，所述第二电压小于耳机的充电电压。Monitor the remaining power of the battery in the charging box. When the remaining power is greater than or equal to the first set value, the first voltage is output at the external port of the charging box, and when the remaining power is less than the first set value, the first voltage is output from the charging box. The port outputs a second voltage, where the first voltage is greater than or equal to the charging voltage of the headset, and the second voltage is less than the charging voltage of the headset.
  11. 如权利要求10所述的耳机充电控制方法，其中，还包括：The method for controlling charging of earphones according to claim 10, further comprising:
    在充电盒外接端口输出第二电压期间，监测充电盒蓄电池的剩余电量，当所述剩余电量大于第二设定值时，控制所述充电盒外接端口输出第一电压，其中，第二设定值大于或等于第一设定值。During the period when the external port of the charging box outputs the second voltage, the remaining power of the battery of the charging box is monitored, and when the remaining power is greater than the second set value, the external port of the charging box is controlled to output the first voltage, wherein the second set The value is greater than or equal to the first set value.
PCT/CN2019/110817 2019-10-12 2019-10-12 Charging box, earphone, audio device and earphone charging control method WO2021068245A1 (en)

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