WO2023134448A1 - 一种电池保护组件、无线耳机组件、电子装置及控制方法 - Google Patents

一种电池保护组件、无线耳机组件、电子装置及控制方法 Download PDF

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Publication number
WO2023134448A1
WO2023134448A1 PCT/CN2022/142670 CN2022142670W WO2023134448A1 WO 2023134448 A1 WO2023134448 A1 WO 2023134448A1 CN 2022142670 W CN2022142670 W CN 2022142670W WO 2023134448 A1 WO2023134448 A1 WO 2023134448A1
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WIPO (PCT)
Prior art keywords
shipping
signal
battery protection
unit
battery
Prior art date
Application number
PCT/CN2022/142670
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English (en)
French (fr)
Inventor
宋利军
宋朋亮
Original Assignee
西安稳先半导体科技有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN202210045144.3A external-priority patent/CN114422898A/zh
Priority claimed from CN202210045141.XA external-priority patent/CN114301144A/zh
Application filed by 西安稳先半导体科技有限责任公司 filed Critical 西安稳先半导体科技有限责任公司
Publication of WO2023134448A1 publication Critical patent/WO2023134448A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones

Definitions

  • the present application relates to the field of battery technology, in particular to a battery protection component, a wireless earphone component, an electronic device and a control method. .
  • Battery packs are widely used in electronic devices, such as bluetooth earphones, electronic cigarettes, etc., to provide a more flexible use environment for electronic devices without being limited to the range of sockets and power supply wires.
  • a battery pack includes a bare cell, a battery protection circuit electrically connected to the bare cell to prevent overcharging or overdischarging of the bare cell.
  • the battery component After the electronic device with the battery component is manufactured at the production site, the battery component is charged with a preset amount of electricity, and the electronic device is in a low power consumption state, and then after a long time of transportation and storage, finally when the end user gets it for the first time
  • the electronic device may be completely discharged due to internal current consumption, so the end user must charge the electronic device to restore power before using it for the first time, resulting in poor user experience .
  • the technical problem to be solved by the embodiments of the present application is to provide a battery protection component, a wireless earphone component, an electronic device and a control method.
  • the power consumption of the battery protection component during transportation and storage can be reduced, the power retention time of the first battery of the battery protection component can be increased, user experience can be improved, and damage to system circuits can be reduced.
  • the first aspect of the embodiment of the present application provides a battery protection assembly, including a first battery protection circuit and a first switch unit;
  • the first battery protection circuit includes a first power supply terminal, a first power supply ground terminal, a first over-discharge voltage protection unit, a first discharge over-current protection unit, a first reference voltage generation unit, and a first logic control unit, so
  • the first power supply terminal and the first power ground terminal are used to be electrically connected to the positive and negative poles of the first battery
  • the first logic control unit is electrically connected to the first switch unit for controlling the opening of the first switch unit or turn off, the first switch unit is used to control the first battery to supply power to the system circuit;
  • the first battery protection circuit when the first battery protection circuit recognizes the shipping incoming signal, the first battery protection circuit delays the eighth preset time period, and the first battery protection circuit outputs the shipping feedback during the eighth preset time period A signal is sent to the system circuit to shut down the system circuit, the first battery protection circuit enters the shipping mode after the eighth preset time period, and the first switch unit is turned off in the shipping mode to make the second A battery ceases to provide power to the system circuitry.
  • the first battery protection circuit outputs the shipping feedback signal when the first battery protection circuit recognizes the shipping incoming signal.
  • the terminal of the first battery protection circuit that receives the shipping incoming signal also receives a communication signal; wherein, the communication signal includes a first pulse signal, and the shipping incoming signal includes a third pulse signal; wherein, the The time width of the high level of the first pulse signal is different from the time width of the high level of the third pulse signal, or the time width of the low level of the first pulse signal is different from that of the third pulse signal The time width of the low level is different; or, the time width of the high level of the first pulse signal is different from the time width of the high level of the third pulse signal and the time width of the low level of the first pulse signal is The time width is different from the time width of the low level of the third pulse signal.
  • the first logic control unit includes a CTL signal acquisition unit, a second pulse width timing unit, a second pulse counting unit, a clock generation unit, a sampling timing unit, and a shipping control unit, wherein the CTL signal acquisition unit and The first battery protection circuit is electrically connected to the terminal receiving the shipping incoming signal, and the CTL signal acquisition unit is also electrically connected to the second pulse width timing unit, the shipping control unit, and the clock generation unit, and the second pulse width timing unit is connected to the second pulse width timing unit.
  • the two pulse counting units are electrically connected, the clock generating unit is electrically connected to the sampling timing unit and the shipping control unit respectively, the sampling timing unit is also electrically connected to the second pulse counting unit, and the second pulse counting unit is electrically connected to the shipping control unit.
  • the second pulse counting unit outputs a signal to the shipping control unit after identifying the shipping entry signal, and the shipping control unit delays an eighth preset time period to control the first battery protection circuit to enter the shipping mode , the shipping control unit outputs a shipping feedback signal to the system circuit within an eighth preset time period.
  • the shipping entry signal includes a plurality of identical pulse signals, and the first battery protection circuit determines whether it is a shipping entry signal; or,
  • the first logic control unit includes a shipping control unit, and the shipping control unit controls the first battery protection circuit to enter the shipping mode by delaying an eighth preset time period when receiving a signal corresponding to the shipping entry signal , the shipping control unit outputs a shipping feedback signal to the system circuit within an eighth preset time period.
  • the shipping feedback signal includes a high-level signal that lasts for a ninth preset time period, and the ninth preset time period is shorter than the eighth preset time period; or,
  • the shipping feedback signal includes a preset number of pulse signals within a ninth preset time period, the ninth preset time period being shorter than the eighth preset time period.
  • a ratio range of the ninth preset time period to the eighth preset time period is between 1/4-1.
  • the first battery protection circuit includes a shipping terminal, the shipping terminal is electrically connected to the first logic control unit, the shipping terminal is used to receive the shipping incoming signal, and the The shipping terminal is used to output the shipping feedback signal.
  • the battery protection component further includes a capacitance detection circuit
  • the capacitance detection circuit includes a capacitance detection unit
  • the capacitance detection circuit is used to electrically connect the detection electrodes
  • the capacitance detection circuit is also connected to the first battery protection The circuit is electrically connected, and when the capacitance detection unit detects a capacitance change, the capacitance detection module sends a shipping incoming signal to the first battery protection circuit; or,
  • the shipping entry signal comes from the charging compartment.
  • the first battery protection circuit is in a zero power consumption mode in the shipping mode; or,
  • the first battery protection circuit receives a shutdown success signal from the system circuit within the eighth preset time period.
  • the first battery protection circuit and the first switch unit are located on the same chip; or, the first battery protection circuit is located on the first chip, and the first switch unit is located on the first chip outside.
  • the second aspect of the embodiment of the present application provides an electronic device, including a first battery, a system circuit, and the above-mentioned battery protection component, wherein the first power supply terminal and the first power ground terminal correspond to the first power supply terminal.
  • the positive and negative poles of a battery are electrically connected, the first switch unit controls the first battery to supply power to the system circuit, and the first battery protection circuit outputs the shipping feedback signal to the system during the eighth preset time period circuit, the shipping feedback signal is used to shut down the system circuit.
  • the system circuit includes a micro control unit, and the micro control unit receives the shipping feedback signal and controls the system circuit to shut down.
  • the third aspect of the embodiment of the present application provides a method for controlling a battery protection component, including:
  • the first battery protection circuit when the first battery protection circuit recognizes the shipping entry signal, the first battery protection circuit delays the eighth preset time period. After the eighth preset time period, the first battery protection circuit enters the shipping mode. In this mode, the first switch unit is turned off so that the first battery stops supplying power to the system circuit. In the shipping mode, the energy consumption of the first battery can be greatly reduced, and the power of the first battery can be kept for a long time, even if the electronic device is transported for a long time, the power of the first battery will not be exhausted. Moreover, the first battery protection circuit outputs a shipping feedback signal to the system circuit to shut down the system circuit during the eighth preset time period, so that the first battery protection circuit turns off the system before entering the shipping mode. The circuit is shut down to prevent the system circuit from hard power failure due to the shutdown of the first switch unit, which may damage the system circuit software and hardware. The processing method of first shutting down the system circuit and then entering the shipping mode can protect the safety of the system circuit software and hardware.
  • the fourth aspect of the embodiment of the present application provides a wireless earphone assembly, including a wireless earphone and a charging compartment, and the wireless earphone can be accommodated in the charging compartment;
  • the wireless earphone includes a first battery, a first battery protection circuit, a system circuit, a first switch unit and a plurality of first contacts
  • the first battery protection circuit includes a first power supply terminal, a first power ground terminal, the first over-discharge voltage protection unit, the first discharge over-current protection unit, the first reference voltage generation unit, and the first logic control unit, the first power supply terminal and the first power ground terminal are respectively connected to the first
  • the positive and negative electrodes of the battery are electrically connected
  • the first logic control unit is electrically connected to the first switch unit for controlling the opening or closing of the first switch unit
  • the first switch unit is used for controlling the first battery to supply power to A system circuit
  • the first battery protection circuit is also electrically connected to the first contact;
  • the charging bin includes a plurality of second contacts, the second contacts are electrically connected to the first contacts, the charging bin outputs a shipping incoming signal, and the shipping incoming signal passes through the second contact. point, the first contact output to the first battery protection circuit, the first battery protection circuit enters the shipping mode, and the first switch unit is turned off in the shipping mode so that the first battery stops supplying power to the system circuit .
  • two of the plurality of first contacts are the first power supply contact and the first ground contact
  • two of the plurality of the second contacts are the second power supply contact and the second ground contact
  • the first battery protection circuit includes a shipping terminal, the shipping terminal is electrically connected to the first power supply contact, the shipping terminal receives the shipping entry signal, and the first battery protection circuit enters the shipping terminal. luck mode.
  • the number of the first contacts is at least three, one of the plurality of first contacts is a first communication contact, and the number of the second contacts is the same as that of the first contacts.
  • the number corresponds, one of the plurality of second contacts is a second communication contact, and when the wireless earphone is stored in the charging compartment, the first communication contact is electrically connected to the second communication contact;
  • the first battery protection circuit includes a shipping terminal, the shipping terminal is electrically connected to the first communication contact, the shipping terminal receives the shipping entry signal, and the first battery protection circuit enters the shipping terminal. luck mode.
  • the first contact through which the wireless earphone transmits the shipping entry signal is also used to transmit a communication signal to the system circuit; wherein, the communication signal includes a first pulse signal, and the shipping entry signal Including the second pulse signal; wherein, the time width of the high level of the first pulse signal is different from the time width of the high level of the second pulse signal, or, the time of the low level of the first pulse signal The width is different from the time width of the low level of the second pulse signal; or, the time width of the high level of the first pulse signal is different from the time width of the high level of the second pulse signal and the The time width of the low level of the first pulse signal is different from the time width of the low level of the second pulse signal.
  • the shipping entry signal includes a plurality of identical pulse signals, and the first battery protection circuit determines whether it is Shipping entry signal.
  • the charging compartment includes a compartment body and a hatch cover, the compartment cover is covered on the compartment body to form an accommodating cavity, the wireless earphone is accommodated in the accommodating cavity, and when the first battery protection circuit enters the shipping After mode and when the charging compartment hatch is opened, the charging compartment charges the wireless earphones to take the wireless earphones out of the shipping mode.
  • the charging compartment detects whether the potential of the second terminal of the first switch unit has changed within a fourth preset time period after the shipping entry signal is sent; or,
  • the first battery protection circuit delays entering the shipping mode for an eighth preset time period after receiving the shipping entry signal, and the first battery protection circuit sends a shipping feedback signal to the charging compartment during the eighth preset time period; or ,
  • the first battery protection circuit When the first battery protection circuit recognizes the shipping incoming signal, the first battery protection circuit delays an eighth preset time period, and the first battery protection circuit outputs a shipping feedback signal to the eighth preset time period.
  • the system circuit shuts down the system circuit, and the first battery protection circuit enters a shipping mode after an eighth preset time period.
  • the first logic control unit includes a CTL signal acquisition unit, a second pulse width timing unit, a second pulse counting unit, a clock generation unit, a sampling timing unit, and a shipping control unit, wherein the CTL signal acquisition unit and The shipping terminal is electrically connected, the CTL signal acquisition unit is also electrically connected with the second pulse width timing unit, the shipping control unit, and the clock generating unit, the second pulse width timing unit is electrically connected with the second pulse counting unit, and the clock generating unit is connected with the second pulse counting unit respectively.
  • sampling timing unit and the shipping control unit are electrically connected, the sampling timing unit is also electrically connected to the second pulse counting unit, the second pulse counting unit is electrically connected to the shipping control unit, and the shipping control unit is electrically connected to the control terminal of the first switch unit. connected, the shipping control unit controls whether the first battery protection circuit enters the shipping mode according to the input signal.
  • the battery protection circuit is in a zero power consumption mode in the shipping mode.
  • the charging compartment also outputs a reset signal
  • the reset signal is output to the first battery protection circuit through the second contact and the first contact
  • the first logic control unit controls the first switch The unit is turned off so that the first battery stops supplying power to the system circuit, and after the first switch unit is turned off for a first preset period of time, the first logic control unit controls the first switch unit to turn on to restore the first battery to the system circuit power supply.
  • the wireless earphone receives the reset signal and the ship entry signal through the same first contact.
  • the charging bin when the charging bin sends the first communication signal to the system circuit and does not receive a feedback signal within a second preset time period, the charging bin generates and outputs a ship-incoming signal.
  • the charging compartment sends a reset verification signal to the system circuit within a third preset time period after outputting the reset signal to verify whether the wireless earphone is reset, wherein the third preset The time period is greater than the first preset time period.
  • the first battery protection circuit and the first switch unit are located on the same chip; or, the first battery protection circuit is located on the first chip, and the first switch unit is located on the first chip outside.
  • the first end of the first switch unit is electrically connected to the negative electrode of the first battery, and the second end of the first switch unit is respectively connected to the second end of the system circuit, one of the The first contact is electrically connected, and the first battery protection circuit further includes a system end, the system end is electrically connected to the second end of the first switch unit, and the positive pole of the first battery is connected to the second end of the system circuit. one end and the other first contact are electrically connected; or,
  • the first battery protection circuit includes a system terminal, the first terminal of the first switch unit is electrically connected to the first power supply ground terminal, and the second terminal of the first switch unit is electrically connected to the system terminal, The system end is also electrically connected to the second end of the system circuit and one of the first contacts, and the positive pole of the first battery is connected to the first end of the system circuit and the other first contact. point electrical connections; or,
  • the first end of the first switch unit is electrically connected to the positive pole of the first battery, and the second end of the first switch unit is electrically connected to the first end of the system circuit and one of the first contacts.
  • the first battery protection circuit also includes a system terminal, the system terminal is electrically connected to the second terminal of the first switch unit, the negative pole of the first battery is connected to the second terminal of the system circuit, the other the first contact is electrically connected; or,
  • the first battery protection circuit includes a system terminal, the first terminal of the first switch unit is electrically connected to the first power supply terminal, the second terminal of the first switch unit is electrically connected to the system terminal, The system end is also electrically connected to the first end of the system circuit and one of the first contacts, and the negative pole of the first battery is connected to the second end of the system circuit and the other first contact. Click on the electrical connection.
  • the second contact includes a pogo pin
  • the first contact includes a conductive contact piece, a conductive pin, a conductive column, a conductive tongue or a gold finger.
  • the charging compartment of the embodiment of the present application outputs a shipping incoming signal to the first battery protection circuit of the wireless headset, the first battery protection circuit enters the shipping mode, and the first switch unit is turned off in the shipping mode to stop the first battery from supplying the system circuit powered.
  • This can greatly reduce the energy consumption of the first battery, and the power of the first battery can be kept for a long time, even if the wireless earphone is transported for a long time, the power of the first battery will not be exhausted.
  • the charging compartment sends the shipping incoming signal to the wireless earphone, instead of the system circuit of the wireless earphone sending the shipping incoming signal or triggering the sending of the shipping incoming signal through the button on the wireless earphone, which can further reduce the wireless earphone It can prevent the wireless headset from crashing or failing to enter the shipping mode through the system circuit.
  • the charging compartment directly outputs the shipping incoming signal to the first battery protection circuit without going through the system circuit of the wireless earphone, the reliability of the shipping incoming signal is relatively high.
  • Fig. 1a is a circuit block diagram of a wireless earphone assembly according to the first embodiment of the present application
  • Fig. 1b is a circuit block diagram of another wireless earphone assembly according to the first embodiment of the present application.
  • Fig. 1c is a circuit block diagram of another wireless earphone assembly according to the first embodiment of the present application.
  • Fig. 1d is a circuit block diagram of another wireless earphone assembly in the first embodiment of the present application.
  • Fig. 2 is a partial block diagram of a first logic control unit according to the first embodiment of the present application
  • Fig. 3 is a timing diagram corresponding to Fig. 2;
  • Fig. 4 is a partial block diagram of a first logic control unit according to another embodiment of the present application.
  • FIG. 5 is a timing diagram corresponding to modules related to reset and restart in FIG. 4;
  • FIG. 6 is a circuit block diagram of a wireless earphone assembly according to the second embodiment of the present application.
  • FIG. 7 is a circuit block diagram of an electronic device according to the third embodiment of the present application.
  • FIG. 8 is a circuit block diagram of the capacitance detection circuit in FIG. 7 .
  • the XX terminal mentioned in this application may or may not be an actual terminal, for example, it is only one end of a component or one end of a wire.
  • the embodiment of the present application provides a wireless earphone assembly, including a wireless earphone 100 and a charging case 200, the wireless earphone 100 can be stored in the charging case 200, and can also be taken out of the charging case 200 for use.
  • the wireless headset 100 is, for example, a Bluetooth headset or the like.
  • the wireless earphone 100 includes a first battery 110, a first battery protection circuit 120, a first switch unit 130, a system circuit 140 and a plurality of first contacts.
  • the first battery 110, the first battery protection circuit 120, and the first switch unit 130 are used to control the power supply to the system circuit 140
  • the system circuit 140 is electrically connected to the first battery protection circuit 120
  • the first battery 110 provides protection for the first battery.
  • the circuit 120 supplies power
  • the first battery protection circuit 120 plays a protective role. For example, when the first battery 110 is overcharged or overdischarged, it is protected. Because how the first battery protection circuit 120 overcharges and overdischarges the first battery 110 Protection is a common technical means in this field, and will not be repeated here.
  • the system circuit 140 includes a micro control unit, a sound processing chip, a bluetooth chip and the like.
  • the plurality of first contacts are used to realize contact electrical connection with the charging bin 200, so as to enable the charging bin 200 to charge the wireless earphone 100, communicate with the wireless earphone 100, and so on.
  • a second resistor R2 and a first capacitor C1 are further provided between the first battery protection circuit 120 and the first battery 110 , and the second resistor R2 and the first capacitor C1 are used for filtering.
  • the second resistor R2 and the first capacitor C1 may not be provided between the first battery 110 and the first battery protection circuit 120 , and of course other circuits or electronic components may also be provided.
  • the number of the first battery 110 is one or more. When there are multiple, the multiple first batteries 110 can be connected in parallel or in series or mixed in series and parallel.
  • the first battery 110 is preferably a lithium battery, Rechargeable batteries such as nickel-cadmium batteries and nickel-metal hydride batteries. In this embodiment, since the wireless earphone 100 itself is relatively small, the capacity of the first battery 110 is also relatively small.
  • the capacity of the first battery 110 is 10mAH-80mAH, such as 10mAH, 20mAH, 30mAH, 40mAH, 50mAH, 60mAH, 70mAH, 80mAH, the volume of the first battery 110 of this capacity is small, preferably, the capacity of the first battery 110 is 20mAH-40mAH, at this time the volume of the first battery 110 is smaller, and can be conveniently arranged in
  • the small wireless earphone 100 facilitates the miniaturization of the wireless earphone 100, especially the miniaturization of the Bluetooth earphone.
  • the first battery protection circuit 120 includes a first power supply terminal VDD1, a first power ground terminal GND1, a first reference voltage generation unit, a first over-discharge voltage protection unit, a first discharge over-current protection unit,
  • the first logic control unit, the first overcharge voltage protection unit, the first charge overcurrent protection unit, the system terminal VM, etc., the first power supply terminal VDD1, and the first power ground terminal GND1 correspond to the positive and negative poles of the first battery 110 are electrically connected, so that the first battery 110 can supply power to the first battery protection circuit 120 .
  • the system end VM is used to monitor the current flowing through the system circuit 140 , of course, the system end VM can also have other functions.
  • the first reference voltage generation unit provides reference voltages for the first over-discharge voltage protection unit, the first discharge over-current protection unit, etc., so as to determine whether the first battery 110 is in an over-discharge voltage state, a discharge over-current state, short circuit status etc.
  • the first over-discharge voltage protection unit is used to protect the first battery 110 when it detects that the voltage of the first battery 110 is lower than the reference voltage provided by the first reference voltage generating unit during the discharge process of the first battery 110, such as controlling
  • the first battery 110 only discharges to a minimum level, and generally stops supplying power to the system circuit 140 to prevent the first battery 110 from being over-discharged and causing permanent damage to the first battery 110 .
  • the first discharge overcurrent protection unit is used to protect the first battery 110 and the system circuit 140 when it detects that the discharge current is too large during the discharge process of the first battery 110, for example, the first battery 110 stops discharging, etc., to prevent Excessive discharge current may cause permanent damage to the first battery 110 and the system circuit 140 or cause safety problems.
  • the first logic control unit is used to control the working state and control logic of each unit of the first battery protection circuit 120, and to control whether the first battery 110 is discharged externally and whether to charge the first battery 110.
  • the first logic control unit can control The entire first battery protection circuit 120 is in a zero power consumption mode, that is, the entire first logic control unit consumes almost no power.
  • the first overcharge voltage protection unit is used by the user to protect the first battery 110 when it detects that the voltage of the first battery 110 is higher than the reference voltage provided by the reference voltage generating unit during the charging process of the first battery 110, preventing the first The battery 110 continues charging after being fully charged to prevent the first battery 110 from being damaged.
  • the first charging overcurrent detection unit is used to protect the first battery 110 when it detects that the charging current is too large during the charging process of the first battery 110, for example, the first battery 110 stops charging the first battery 110 to prevent Excessive charging current may cause permanent damage to the first battery 110 or cause safety problems.
  • connection modes between the first switch unit 130 and the first battery protection circuit 120 generally have the following types.
  • those skilled in the art can also make simple modifications to the circuit described below as required. within the scope of this application.
  • the first battery protection circuit 120 includes a switch control terminal CO/DO, the switch control terminal CO/DO is electrically connected to the first logic control unit, and the control terminal of the first switch unit 130 is connected to the switch control terminal CO /DO electrical connection, that is, the first switch unit 130 is located outside the first battery protection circuit 120 (the first switch unit 130 is external), and the first end of the first switch unit 130 is electrically connected to the negative pole of the first battery 110 ( The first switch unit 130 is placed below), the negative pole of the first battery 110 is grounded, and the second terminal of the first switch unit 130 is electrically connected to the system circuit 140 and the system terminal VM respectively.
  • the first logic control unit controls the first switch unit 130 to turn on or off through the switch control terminal CO/DO, so that when the first logic control unit controls the first switch unit 130 to turn on At this time, the first battery 110 can supply power to the system circuit 140 through the first switch unit 130, and the system circuit 140 is in the normal working mode.
  • the first battery 110 stops Power is supplied to the system circuit 140, and the system circuit 140 is in a zero power consumption mode (leakage current is not considered).
  • the first battery protection circuit 120 can be implemented on the first chip, that is, the first switch unit 130 is not on the first chip at this time.
  • the first battery protection circuit 120 may not be implemented on the first chip, and may be designed according to the needs of users.
  • the zero power consumption mode means that the power of the first battery 110 is not consumed in an ideal situation, and there will be a certain leakage current in the actual situation.
  • the zero power consumption mode does not mean that the power consumption is actually 0, but refers to the power consumption close to 0.
  • the first switch unit 130 is built in the first battery protection circuit 120 (the first switch unit 130 is built in, at this time the first switch unit 130 and the first battery protection circuit 120 are located on the same chip), At this time, the control terminal of the first switch unit 130 is electrically connected to the first logic control unit, the first terminal of the first switch unit 130 is electrically connected to the first power ground terminal GND1, and the first power ground terminal GND1 is connected to the first battery 110.
  • the negative pole of the first switch unit 130 is electrically connected (the first switch unit 130 is placed down), the second terminal of the first switch unit 130 is electrically connected to the system terminal VM of the first battery protection circuit 120 , and the system terminal VM is electrically connected to the system circuit 140 .
  • the first logic control unit controls the first switch unit 130 to turn on or turn off, so that when the first logic control unit controls the first switch unit 130 to turn on, the first battery 110 Power can be supplied to the system circuit 140 through the first switch unit 130, and the system circuit 140 is in a normal working mode.
  • the first battery 110 stops supplying power to the system circuit 140, and the system Circuit 140 is in 0 power consumption mode.
  • the first battery protection circuit 120 may be implemented on a chip, that is, at this time, the first switch unit 130 and the first battery protection circuit 120 are located on the same chip.
  • the first battery protection circuit 120 may not be implemented on the chip, and may be designed according to the needs of users.
  • the first battery protection circuit 120 includes a switch control terminal CO/DO, the switch control terminal CO/DO is electrically connected to the first logic control unit, the control terminal of the first switch unit 130 is connected to the switch control terminal CO/DO DO is electrically connected, that is, the first switch unit 130 is located outside the first battery protection circuit 120 (the first switch unit 130 is external), and the first end of the first switch unit 130 is electrically connected to the positive pole of the first battery 110 (the first switch unit 130 is electrically connected to the positive pole of the first battery 110 A switch unit 130 is placed above), and the second terminal of the first switch unit 130 is electrically connected to the system circuit 140 and the system terminal VM respectively.
  • the first logic control unit controls the first switch unit 130 to turn on or off through the switch control terminal CO/DO, so that when the first logic control unit controls the first switch unit 130 to turn on At this time, the first battery 110 can supply power to the system circuit 140 through the first switch unit 130, and the system circuit 140 is in the normal working mode.
  • the first battery 110 stops Power is supplied to the system circuit 140, and the system circuit 140 is in a zero power consumption mode.
  • the first battery protection circuit 120 can be implemented on the first chip, that is, the first switch unit 130 is not on the first chip at this time.
  • the first battery protection circuit 120 may not be implemented on the chip, and may be designed according to the needs of users.
  • the first switch unit 130 is built in the first battery protection circuit 120 (the first switch unit 130 is built in, at this time the first switch unit 130 and the first battery protection circuit 120 are built on the same chip) , at this time, the control terminal of the first switch unit 130 is electrically connected to the first logic control unit, the first terminal of the first switch unit 130 is electrically connected to the first power supply terminal VDD1, and the first power supply terminal VDD1 is connected to the first battery
  • the anode of 110 is electrically connected (the first switch unit 130 is placed down), the second end of the first switch unit 130 is electrically connected to the system terminal VM, and the system terminal VM is electrically connected to the system circuit 140 .
  • the first logic control unit controls the first switch unit 130 to turn on or turn off, so that when the first logic control unit controls the first switch unit 130 to turn on, the first battery 110 Power can be supplied to the system circuit 140 through the first switch unit 130, and the system circuit 140 is in a normal working mode.
  • the first battery protection circuit 120 may be implemented on a chip, that is, at this time, the first switch unit 130 and the first battery protection circuit 120 are located on the same chip.
  • the first battery protection circuit 120 may not be implemented on the chip, and may be designed according to the needs of users.
  • the first switch unit 130 includes a charge switch and a discharge switch, wherein the charge switch and the discharge switch are MOS or other suitable field effect transistors, such as NMOS, PMOS, etc., and the charge switch and discharge switch
  • the switches are respectively electrically connected to the first logic control unit.
  • the control end of the switch is electrically connected
  • the control end of the discharge switch is electrically connected to the control end of the discharge switch
  • the control end of the charge switch and the control end of the discharge switch are respectively electrically connected to the first logic control unit
  • the first logic control unit realizes the charging switch, discharge switch control.
  • the first switch unit 130 may also include a switch tube and a substrate control circuit, the switch tube is a MOS or other field effect tube, etc., and the control terminal of the switch tube and the switch control terminal CO/DO Electrically connected, the substrate control circuit is electrically connected to the first logic control unit, the substrate control circuit is used to realize the correct biasing of the substrate of the switch tube, for example, when the first battery 110 is discharged and the first battery 110 is charged, the switch tube at different biases.
  • the present application is not limited thereto, and in other embodiments of the present application, the first switch unit 130 may also be other conventional implementation forms in the art.
  • the first battery protection circuit 120 is electrically connected to the first contact.
  • the first power supply contact GCD1 there are two first contacts, namely the first power supply contact GCD1 and the first ground contact DCD1, wherein the first power supply contact GCD1 communicates with the first power supply contact GCD1 via the charging management circuit.
  • a positive electrode of a battery 110 is electrically connected, and the first ground contact DCD1 is electrically connected to the second terminal of the first switch unit 130 . Therefore, when the wireless earphone 100 is put back into the charging compartment 200 and the charging circuit is turned on, the charging compartment 200 can charge the first battery 110 through the first power supply contact GCD1 and the first ground contact DCD1 .
  • the first power supply contact GCD1 is also electrically connected to the system circuit 140 , so that the charging compartment 200 can also communicate with the system circuit 140 through the first power supply contact GCD1 .
  • the charging bin 200 includes a plurality of second contacts, the number of the second contacts corresponds to the number of the first contacts, and the second contacts include the second power supply contact GCD2 and the second ground contact DCD2 , when the wireless earphone 100 is put into the charging compartment 200, the second power supply contact GCD2 is electrically connected to the first power supply contact GCD1, and the second ground contact DCD2 is electrically connected to the first ground contact DCD1, so that the charging compartment 200 and the first ground contact DCD1 are electrically connected. Power transmission and communication of the wireless earphone 100.
  • the first power supply contact GCD1 and the second power supply contact GCD2 realize contact electrical connection
  • the first ground contact DCD1 and the second ground contact DCD2 realize contact electrical connection
  • the first contact includes a conductive contact piece, a conductive pin, a conductive post, a conductive tongue or a golden finger
  • the second contact includes a pogopin, which can realize the first The contact and the second contact are relatively good contact electrical connections.
  • the charging compartment 200 outputs a shipping incoming signal, and the shipping incoming signal is output to the first battery protection circuit via the second contact and the first contact 120. Trigger the first battery protection circuit 120 to enter the shipping mode.
  • the first switch unit 130 is turned off so that the first battery 110 stops supplying power to the system circuit 140, that is, the discharge circuit of the first battery 110 is disconnected.
  • the discharge switch is turned off at this time, and the first battery protection circuit 120 is in the 0 power consumption mode in the shipping mode. Leakage current, 0 power consumption mode does not mean that the power consumption is actually 0, but means that the power consumption is close to 0.
  • the charging compartment 200 sends the shipping incoming signal to the wireless earphone 100 instead of the system circuit 140 of the wireless earphone 100 sending the shipping incoming signal or triggering the sending of the shipping incoming signal through the button on the wireless earphone 100, which can be further improved.
  • the first battery protection circuit 120 can successfully enter the shipping mode, which improves the reliability.
  • the first battery protection circuit 120 may not be in the zero power consumption mode in the shipping mode. At this time, the first battery protection circuit 120 works normally or at least some modules do not consume power.
  • the first battery protection circuit 120 further includes a shipping terminal CTL, which is used to enable the first battery protection circuit 120 to enter the shipping mode, and the shipping terminal CTL is electrically connected to the first power supply contact GCD1 . Therefore, when the charging compartment 200 sends a shipping entry signal through the second power supply contact GCD2 and the first power supply contact GCD1, the shipping end CTL will receive the shipping entry signal, and the shipping entry signal is the charging compartment 200 and wireless
  • the first battery protection circuit 120 can identify the incoming shipping signal according to the agreement of the earphone 100 . When the first battery protecting circuit 120 recognizes the incoming shipping signal, the first battery protecting circuit 120 enters the shipping mode.
  • the system circuit 140 is also electrically connected to the first power supply contact GCD1 to realize the communication between the charging case 200 and the system circuit 140 after the wireless earphone 100 is put back into the charging case 200 . That is, in this embodiment, the first power supply contact GCD1 not only transmits the incoming signal of the ship, but also transmits the communication signal with the system circuit 140 , and both signals are pulse signals.
  • the communication signal includes the first pulse signal, and the communication signal is distinguished by calculating the number of first pulse signals accumulated in a continuous or preset time period, wherein the first pulse signal is For a pulse signal of one cycle, the time width ratio of the high level and low level of the first pulse signal has been preset; the shipping entry signal includes the third pulse signal, the third pulse signal is a pulse signal of one cycle, and the The time width ratios of the high level and low level of the three pulse signals are preset, and the period of the third pulse signal can be the same as or different from the period of the first pulse signal.
  • the time width of the high level of the third pulse signal is different from the time width of the high level of the first pulse signal (first pulse width), for example, the first pulse width range 1ms-2.5ms, such as 1ms, 1.1ms, 1.2ms, 1.3ms, 1.4ms, 1.5ms, 1.6ms, 1.7ms, 1.8ms, 1.9ms, 2ms, 2.1ms, 2.2ms, 2.3ms, 2.4ms , 2.5ms, etc., for example, the third pulse width range is 4sm-6.5ms, such as 4ms, 4.1ms, 4.2ms, 4.3ms, 4.4ms, 4.5ms, 4.6ms, 4.7ms, 4.8ms, 4.9ms, 5ms, 5.1ms, 5.2ms, 5.3ms, 5.4ms, 5.5ms, 5.6ms, 5.7ms, 5.8ms, 5.9ms
  • the The third pulse width is 5 ms as an example for illustration.
  • the time width of the low level of the third pulse signal is the same as or different from the time width of the first pulse signal. Therefore, the first battery protection circuit 120 detects the pulse
  • the time width of the high level of the signal and the number of pulse signals can determine whether it is a normal communication signal or a shipping incoming signal, which can greatly avoid false triggering of the shipping incoming signal or communication signal.
  • the first battery protection circuit 120 is triggered by rising and falling edges, and the first battery protection circuit 120 receives a high-level signal with a third pulse width, and receives 5 or more signals continuously or within a preset period of time.
  • 24 third pulse signals constitute a shipping incoming signal as an example.
  • the first battery protection circuit 120 determines that the pulse signal is a shipping incoming signal.
  • the high The pulse width of the level and the calculation quantity can greatly avoid false triggering.
  • the time width of the low level of the third pulse signal (the third pulse width) is different from the time width of the low level of the first pulse signal (the first pulse width).
  • the time width of the high level of the three pulse signals is the same as or different from the time width of the high level of the first pulse signal, and the first battery protection circuit 120 detects the width of the low level of the pulse signal and the number of pulse signals It can be determined whether it is a normal communication signal or a shipping incoming signal.
  • the time width of the high level of the third pulse signal (the third high pulse width) is different from the time width of the high level of the first pulse signal (the first high pulse width).
  • the time width of the low level of the third pulse signal (the third low pulse width) is also different from the time width of the low level of the first pulse signal (the first low pulse width).
  • the time width of the third pulse signal The cycle is different from the cycle of the first pulse signal, and the first battery protection circuit 120 determines whether it is a normal communication signal or a ship entering by detecting the time width of the high level of the pulse signal, the time width of the low level and the number of pulse signals. Signal.
  • the ship entry signal includes 24 consecutive third pulse signals or includes 24 accumulated third pulse signals.
  • the ship entry signal may also include multiple third pulse signals and multiple first pulse signals, which can be set by those skilled in the art according to actual requirements.
  • the time width (third pulse width) of the high level and/or low level of the third pulse signal is different from the time width (first pulse width) of the high level and/or low level of the first pulse signal. ) and the difference between them is greater than 10%.
  • the error of the pulse time width during pulse generation can be controlled within 10%. Even if the pulse generating device generates an error, the first battery protection circuit 120 will not misjudge the first pulse signal as third pulse signal, or vice versa.
  • the time width of the high level and/or low level of the third pulse signal is preferably at least 20% greater or at least 20% smaller than the time width of the first pulse signal's high level and/or low level, so Misjudgment can be further prevented.
  • the first logic control unit of the first battery protection circuit 120 includes a CTL signal sampling unit 121, a second pulse width timing unit 1222, a second pulse counting unit 1232, a clock generating unit 124, The sampling timing unit 125 and the shipping control unit 127, wherein the CTL signal sampling unit 121 is electrically connected to the shipping terminal, and the CTL signal sampling unit 121 is also connected to the second pulse width timing unit 1222 and the first output terminal of the shipping control unit 127 SM, the clock generating unit 124 are electrically connected, the second pulse width timing unit 1222 is electrically connected with the second pulse counting unit 1232, the clock generating unit 124 is electrically connected with the sampling timing unit 125, the shipping control unit 127 respectively, and the sampling timing unit 125 is also electrically connected.
  • the shipping control unit 127 controls whether the first battery protection circuit 120 enters the shipping mode according to the input signal.
  • the CTL signal sampling unit is used to receive the pulse signal received by the CTL at the shipping end, and the CTL signal sampling unit 121 collects the pulse signal at the shipping end in real time or in time-sharing.
  • the CTL signal sampling unit controls the clock generation unit 124 to output clock pulses to the sampling timing unit 125, and the sampling timing unit 125 is used to time the CTL signal sampling unit, and the CTL signal sampling unit outputs the received pulse signal to the second pulse width Timing unit 1222, the second pulse width timing unit 1222 is used to determine whether the duration of the high level is equal to the third pulse width or within the error range, if so, it is determined as a third pulse signal, and the third pulse signal Delivered to the second pulse counting unit 1232, the second pulse counting unit 1232 counts the number of the third pulse signal plus 1, if otherwise it is not delivered to the second pulse counting unit 1232; when the second pulse counting unit 1232 obtains the third pulse The number of signals is greater than or equal to the second number threshold and the time counted by the sampling timing unit 125 is within the seventh preset time period, then the second pulse counting unit 1232 outputs the third signal to the shipping control unit 127, and the shipping control unit 127 Unit 127 outputs a reset signal to the C
  • the second pulse counting unit 1232 If the number of the third pulse signal obtained by the second pulse counting unit 1232 is less than the second number threshold within the seventh preset time period, the second pulse counting unit 1232 outputs a fourth signal to the shipping control unit 127, and the shipping control The unit 127 does not output the shipping control signal thereafter, and the shipping control unit 127 also outputs a reset signal to the CTL signal sampling unit 121, and the CTL signal sampling unit 121 outputs a zero-setting signal for controlling the second pulse counting unit 1232.
  • the number of the three pulse signals is set to zero and the sampling timing unit 125 is controlled to re-time, and the CTL signal sampling unit 121 starts a new round of sampling of the pulse signal.
  • the seventh preset time period is, for example, 100-300ms, such as 100sm, 110sm, 120sm, 130sm, 140sm, 150sm, 160sm, 170sm, 180sm, 185sm, 190sm, 200sm, 210sm, 220sm, 230sm, 240sm, 250sm, 260sm, 270sm, 280sm, 290sm, 300sm, etc.
  • the seventh preset time period in this embodiment is 200ms
  • the eighth preset time period is, for example, 0.5s-5s, such as 0.5s, 1s, 1.5s, 2s, 2.5s, 3s, 3.5s, 4s, 4.5s, 5s, etc.
  • the eighth preset time period in this embodiment is 2s
  • the second quantity threshold is, for example, greater than or equal to 5, such as 5, 6, 7, 8 , 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 35, 40, 45,
  • the first battery protection circuit 120 when the first battery protection circuit 120 is in the shipping mode, the first terminal of the first switch unit 130 is electrically connected to the negative pole of the battery (the first switch unit is placed downward), and at this time, the system terminal VM is pulled High is a high level, the charging compartment 200 does not charge the wireless earphone 100, preventing the charging compartment 200 from charging the first battery 110 and causing the voltage of the system terminal VM of the first battery protection circuit 120 to be pulled down, causing the first battery protection circuit 120
  • the second ground contact DCD2 When exiting the shipping mode, the second ground contact DCD2 is suspended, for example, or the charging compartment 200 makes the second ground contact DCD2 a high level.
  • the system terminal VM is pulled down to be low at this time.
  • the charging compartment 200 does not charge the wireless earphone 100, preventing the charging compartment 200 from charging the first battery 110 and causing the potential of the system terminal VM of the first battery protection circuit 120 to be pulled up, causing the first battery protection circuit 120 to withdraw from the ship mode, at this time, the second ground contact DCD2 is suspended, for example, or the charging compartment 200 makes the second ground contact DCD2 low.
  • the charging bin 200 will detect whether the first battery protection circuit 120 receives the shipping incoming signal. Specifically, the shipping control unit 127 delays outputting the shipping control signal for an eighth preset time period after receiving the shipping entry signal, and the shipping control signal is used to make the first battery protection circuit 120 enter the shipping mode. During a preset period of time, the first battery protection circuit 120 sends a shipping feedback signal to the charging bin 200, and the charging bin 200 judges whether the first battery protection circuit 120 successfully receives the shipping incoming signal by detecting whether the shipping feedback signal is obtained.
  • the shipping feedback signal is output to the charging bin 200 via the shipping terminal CTL, the first power supply contact GCD1 , and the second power supply contact GCD2 .
  • the shipping feedback signal includes a high-level signal that lasts for a ninth preset time period.
  • the shipping feedback signal is a negotiated signal between the first battery protection circuit 120, the system circuit 140, and the charging compartment 200, and the duration of the ninth preset time period is shorter than the duration of the eighth preset time period, for example, the ninth time period is the same as the eighth preset time period.
  • the ratio range of the time period is between 1/4-1, such as 1/4, 1/3, 1/2, 2/3, 3/4, 4/5, 5/6, 6/7, 7 /8, 8/9, 9/10, etc.
  • the shipping feedback signal may also be other signals that are easily realized by those skilled in the art, such as a preset number of preset pulse signals within a ninth preset time.
  • the charging bin 200 detects whether the signal of the shipping terminal CTL is pulled up to a high level via the second power supply contact GCD2 and the first power supply contact GCD1. 200 detects that the signal of the shipping terminal CTL is pulled up to a high level for a time greater than or equal to the ninth preset time period, then the charging compartment 200 knows that the first battery protection circuit 120 has received the shipping entry signal, and then it will Entering the shipping mode, if the charging bin 200 does not detect that the time for the signal of the shipping terminal CTL to be pulled up to a high level during the fourth preset time period is greater than or equal to the ninth preset time period, then the charging bin 200 knows The first battery protection circuit 120 fails to receive the shipping entry signal, and the charging compartment 200 sends out a prompt signal to remind the manufacturer or transporter that the wireless earphone 100 fails to receive the shipping entry signal, and will not successfully enter the shipping mode thereafter.
  • the fourth preset time period is longer than the eighth preset time period.
  • the shipping feedback signal is output to the charging compartment 200 via the system terminal VM, the first ground contact DCD1 , and the second ground contact DCD2 .
  • the shipping feedback signal can also be output to the charging bin 200 and the system circuit 140 through other terminals.
  • the first battery protection circuit 120 delays the eighth preset time period when the first battery protection circuit 120 recognizes the shipping incoming signal, and the first battery protection circuit 120 outputs the shipping signal during the eighth preset time period.
  • the feedback signal is given to the system circuit 140, and the system circuit 140 includes a micro-control unit. After the micro-control unit receives and recognizes the shipping feedback signal, the micro-control unit controls the system circuit 140 to shut down in order, and the system circuit 140 can be shut down soon, and the system After the circuit 140 recognizes the shipping feedback signal, it shuts down at the level of milliseconds or microseconds, and the first battery protection circuit 120 enters the shipping mode after the eighth preset time period.
  • the first battery protection circuit 120 shuts down the system circuit 140 before entering the shipping mode, so as to prevent the system circuit 140 from hard power-off due to the disconnection of the first switch unit 130, which may damage the software and hardware of the system circuit 140
  • the processing method of shutting down the system circuit 140 first and then entering the shipping mode can protect the security of the software and hardware of the system circuit 140 .
  • the shipping feedback signal is output to the system circuit 140 via the shipping terminal CTL, that is, the shipping terminal CTL is an input and output terminal.
  • the first battery protection circuit 120 outputs a shipping feedback signal when the first battery protection circuit 120 recognizes the shipping incoming signal.
  • the present application is not limited thereto.
  • the first battery protection circuit 120 may delay outputting the shipping feedback signal for a period of time after the first battery protection circuit 120 recognizes the shipping incoming signal. It is sufficient that the system circuit 140 can be shut down within the eighth preset time period.
  • the first logic control unit After the first battery protection circuit 120 receives the shipping incoming signal, the first logic control unit will identify it. When the second pulse counting unit 1232 of the first logic control unit recognizes the shipping incoming signal , the second pulse counting unit 1232 outputs a signal to the shipping control unit 127, the shipping control unit 127 delays the eighth preset time period to output the shipping control signal, and the first battery protection circuit 120 delays the eighth preset time period to enter the shipping model.
  • the system circuit 140 will also send a shutdown success signal within the eighth preset time period, and the shutdown success signal is output to the first battery protection circuit 120 through the CTL of the shipping end to tell the first battery protection circuit 120
  • the shipping control unit 127 outputs a shipping control signal for controlling the first battery protection circuit 120 to enter the shipping mode after an eighth preset time period.
  • the shipping control unit 127 can immediately output the shipping control signal without waiting for the eighth preset time period, which can save time.
  • the charging bin 200 communicates with the upper computer via wired or wireless communication, and the upper computer triggers the charging bin 200 to generate and output a shipping incoming signal. All charging pods 200 in the area generate and output a ship-entry signal.
  • the volume of the wireless earphone 100 can be further reduced by disposing the ship-entry signal generating device in the charging compartment 200 instead of the wireless earphone 100 , which is beneficial to the miniaturization of the wireless earphone 100 .
  • the charging compartment 200 includes a compartment body and a compartment cover. One end of the compartment cover is hinged to one end of the compartment body. The compartment cover covers the compartment body to form an accommodating cavity.
  • the container is used to accommodate the wireless earphone 100.
  • the compartment cover can be opened or closure. After the charging bin 200 knows that the wireless earphone 100 has entered the shipping mode, when the user opens the cover of the charging bin 200, and the charging bin 200 detects the cover opening signal, for example, it detects that the user opens the charging bin through the cooperation of the magnet and the Hall sensor.
  • the compartment cover of 200 for example, the magnet is located on the compartment cover, and the Hall sensor is located on the compartment body connected to the compartment cover, or conversely, the charging compartment 200 starts to charge the wireless earphone 100 via the second contact and the first contact, thereby
  • the potential of the system terminal VM of the first battery protection circuit 120 is pulled down, so that the first battery protection circuit 120 exits the shipping mode, the first battery protection circuit 120 resumes normal operation, and the first switch unit 130 is controlled to be turned on.
  • the battery 110 resumes supplying power to the system circuit 140 , and when the user takes out the wireless earphone 100 from the charging compartment 200 , the wireless earphone 100 can work normally.
  • the charging compartment 200 will also output a reset signal, and the reset signal is output to the first battery protection circuit 120 through the second contact and the first contact, and the reset signal does not need to pass through the system.
  • the first logic control unit of the first battery protection circuit 120 controls the first switch unit 130 to turn off, where the disconnection is the disconnection of the discharge switch, so that the first The discharge circuit of the battery 110 is disconnected, the power supply of the system circuit 140 is stopped, and then after the first preset period of time is disconnected, the first logic control unit controls the first switch unit 130 to turn on again to restore the first battery 110 to
  • the system circuit 140 supplies power, and at this time the system circuit 140 is powered again, the system circuit 140 reloads data and programs, and the wireless earphone 100 is reset and restarted normally.
  • the first preset time period can be set according to user needs, for example, the range of the first preset time period is 10ms-5s, such as 10ms, 50ms, 100ms, 200ms, 300ms, 400ms, 500ms , 600ms, 700ms, 800ms, 900ms, 1s, 1.5s, 2s, 2.5s, 3s, 3.5s, 4s, 4.5s, 5s, etc.
  • the reset signal is sent to the wireless earphone 100 through the charging compartment 200, and the first switch unit 130 in the existing wireless earphone 100 is used to realize the reset and restart function of the system circuit 140, and there is no need to separately add a reset IC chip and a reset IC chip
  • the matched second switch unit greatly reduces the cost and increases the competitiveness of the wireless earphone components.
  • the charging compartment 200 can directly send a reset signal to the first battery protection circuit 120 through the second contact and the first contact, without the need for the system circuit 140. Intervention can overcome the defect that the system circuit 140 of the wireless earphone 100 is completely dead and cannot generate or output a reset signal, realize the reset and restart of the system circuit 140, and restore the system circuit 140 of the wireless earphone 100 to normal.
  • the first battery protection circuit 120 also receives the reset signal through the CTL at the shipping end, that is, the CTL at the shipping end can be multiplexed in time, so that there is no need to set a separate reset end, which is beneficial to reduce costs.
  • the charging compartment 200 sends a reset signal through the second power supply contact GCD2 and the first power supply contact GCD1, the CTL at the shipping end will receive the reset signal.
  • a battery protection circuit 120 can recognize the reset signal according to the relevant protocol.
  • the first logic control unit of the first battery protection circuit 120 controls the first switch unit 130 to turn off the first preset time period Afterwards, the first switch unit 130 is turned on again, the first battery 110 resumes supplying power to the system circuit 140, and the system circuit 140 is reset and restarted, so that the wireless earphone 100 can recover from the dead state, and the wireless earphone 100 can be used normally.
  • the first battery protection circuit 120 may be respectively provided with a reset terminal and a shipping terminal CTL, and the reset terminal and the shipping terminal CTL are respectively electrically connected to the first power supply contact GCD1.
  • the reset signal includes a second pulse signal
  • the second pulse signal is a pulse signal of one cycle
  • the time width ratio of the high level and low level of the second pulse signal has been preset
  • the second pulse signal The period of the first pulse signal and the period of the third pulse signal may be the same or different.
  • the time width of the high level of the second pulse signal is the same as the time width of the high level of the first pulse signal (first pulse width), and the high level of the third pulse signal
  • the time width (third pulse width) is different, and the range of the second pulse width is 2.5sm-4sm, such as 2.5ms, 2.6ms, 2.7ms, 2.8ms, 2.9ms, 3ms, 3.1ms, 3.2ms, 3.3 ms, 3.4ms, 3.5ms, 3.6ms, 3.7ms, 3.8ms, 3.9ms, 4ms, etc.
  • this embodiment takes the second pulse width of 3ms as an example for illustration, the time width of the low level of the second pulse signal is the same as The time width of the low level of the first pulse signal and the time width of the low level of the third pulse signal are the same or different, so that the first battery protection circuit 120 detects the time width of the high level of the pulse signal and the pulse
  • the number of signals can determine
  • the first battery protection circuit 120 is triggered by rising and falling edges, and the first battery protection circuit 120 receives a high-level signal with a second pulse width, and receives 5 or more signals continuously or within a preset period of time.
  • the second pulse signal is the second pulse signal.
  • 16 second pulse signals constitute a reset signal as an example for illustration. Then the first battery protection circuit 120 determines that the pulse signal is a reset signal. In this embodiment, by calculating the high-level pulse Wide width and calculated quantity can greatly avoid false triggering.
  • the time width of the low level of the second pulse signal is the same as the time width of the low level of the first pulse signal (first pulse width)
  • the third pulse The time width (the third pulse width) of the low level of the signal is different
  • the time width of the high level of the second pulse signal is the same as the time width of the high level of the first pulse signal
  • the high level of the third pulse signal The time widths are the same or different, and the first battery protection circuit 120 can determine whether it is a normal communication signal or a reset signal by detecting the time width of the low level of the pulse signal and the number of pulse signals.
  • the time width of the high level of the second pulse signal is the same as the time width of the high level of the first pulse signal (first high pulse width)
  • the second The time width of the high level of the three pulse signals is different
  • the time width of the low level of the second pulse signal is different from the time of the low level of the first pulse signal Width (the first low pulse width)
  • the time width (the third low pulse width) of the low level of the third pulse signal is also different
  • the period of the second pulse signal is now the period of the first pulse signal, the period of the third pulse
  • the first battery protection circuit 120 determines whether it is a normal communication signal or a reset signal by detecting the time width of the high level, the time width of the low level and the number of pulse signals of the pulse signal.
  • the reset signal includes 16 continuous second pulse signals or includes 16 accumulated second pulse signals.
  • the difference between the shipping entry signal and the reset signal can also be the difference in the number of second pulse signals, for example, the reset signal contains 16 second pulse signals, and the shipping entry signal contains 24 second pulse signals. second pulse signal, or vice versa. In this way, the shipping entry signal and the reset signal are not easily confused with common communication signals, and the reset signal and the shipping entry signal are also not easily confused.
  • the time width (second pulse width) of the high level and/or low level of the second pulse signal is different from the time width (first pulse width) of the high level and/or low level of the first pulse signal.
  • the time width of the high level and/or low level (the third pulse width) of the third pulse signal differs more than 10%, and the error of the pulse width can be controlled within 10% when the general pulse is generated, so that even if the pulse occurs Even if the device generates an error, the first battery protection circuit 120 will not misjudge the first pulse signal as the second pulse signal, the third pulse signal, or vice versa.
  • the time width of the high level and/or low level of the second pulse signal is shorter than the time width of the high level and/or low level of the first pulse signal, the high level and/or low level of the third pulse signal
  • the flat time width is preferably at least 20% larger or at least 20% smaller, which can further prevent misjudgment.
  • the first logic control unit of the first battery protection circuit 120 includes a CTL signal sampling unit 121, a first pulse width timing unit 1221, a second pulse width timing unit 1222, a first pulse counting unit Unit 1231, second pulse counting unit 1232, clock generating unit 124, sampling timing unit 125, restart control unit 126, shipping control unit 127, wherein, second pulse width timing unit 1222, second pulse counting unit 1232, shipping The connection relationship of the control unit 127 has been described above, and will not be repeated here.
  • the CTL signal sampling unit 121 is also electrically connected with the first pulse width timing unit 1221 and the restart control unit 126
  • the first pulse width timing unit 1221 is electrically connected with the first pulse counting unit 1231
  • the clock generation unit 124 is also connected with the restart control unit 126
  • the sampling timing unit 125 is also electrically connected to the first pulse counting unit 1231
  • the first pulse counting unit 1231 is electrically connected to the restart control unit 126
  • the output terminal Rset of the restart control unit 126 is used to control the first switch unit Terminals are electrically connected
  • the restart control unit 126 controls the first switch unit to turn off and on according to the input signal.
  • the CTL signal sampling unit 121 is used to receive the pulse signal received by the CTL at the shipping end, and the CTL signal sampling unit 121 collects the pulse signal at the shipping end in real time or in time-sharing.
  • the pulse signal at the CTL place, the CTL signal sampling unit 121 controls the clock generation unit 124 to output the clock pulse to the sampling timing unit 125, and the sampling timing unit 125 is used to time the CTL signal sampling unit 121, and the CTL signal sampling unit 121 will receive the pulse signal Output to the first pulse width timing unit 1221, the first pulse width timing unit 1221 is used to judge whether the duration of the high level of the pulse signal is equal to the second pulse width or within the error range, if so, it is determined as a second pulse signal, and the second pulse signal is delivered to the first pulse counting unit 1231, and the first pulse counting unit 1231 counts the number of the second pulse signal plus 1, if otherwise it is not delivered to the first pulse counting unit 1231; when the first The number of the second pulse signal obtained by the pulse counting unit 1231 is greater than or equal to the first number threshold and the time counted by the sampling timing unit 125 is within the sixth preset time period, then the first pulse counting unit 1231 outputs the first signal to the restart control Unit 126,
  • the restart control unit 126 After a set time period, the restart control unit 126 outputs a restart conduction signal, which is used to control the first switch unit 130 to resume conduction, and the first battery 110 resumes supplying power to the system circuit; if within the sixth preset time period The quantity of the second pulse signal obtained by the first pulse counting unit 1231 is less than the first quantity threshold, then the first pulse counting unit 1231 outputs the second signal to the restart control unit 126, then the restart control unit 126 does not output the reset shutdown signal, and The restart control unit 126 outputs a reset signal to the CTL signal sampling unit 121, and the CTL signal sampling unit 121 outputs a zero-setting signal for controlling the number of the second pulse signal stored in the first pulse counting unit 1231 to be zeroed and the sampling timing unit 125 to retime , the CTL signal sampling unit 121 collects a new round of pulse signals.
  • the sixth preset time period is, for example, 50-150ms, such as 50sm, 60sm, 70sm, 75sm, 80sm, 90sm, 100sm, 110sm, 120sm, 125sm, 130sm, 140sm, 150sm, etc., the first amount
  • the threshold is, for example, greater than or equal to 5, such as 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 22, 24, 25, 28, 30 and so on.
  • the first pulse counting unit 1231 counts the number of continuous second pulse signals or the number of accumulated second pulse signals, which can be set according to user requirements.
  • the triggering of the charging bin 200 to send the reset signal may include the following methods:
  • the charging compartment 200 sends the first communication signal to the system circuit 140 of the wireless earphone 100 through the second contact and the first contact, or the charging compartment 200 sends the first communication signal wirelessly.
  • the communication signal is sent to the system circuit 140 of the wireless earphone 100. If the system circuit 140 is not dead, the general system circuit 140 sends a feedback signal to the charging compartment 200 via the first contact, the second contact or wirelessly.
  • the system circuit 140 will not send a feedback signal to the charging bin 200 after receiving the first communication signal, and when the charging bin 200 does not receive a feedback signal within the second preset time period after sending the first communication signal, the charging bin 200, it is considered that the system circuit 140 is dead, and the charging compartment 200 generates a reset signal and outputs it to the first battery protection circuit 120 through the second contact and the first contact.
  • the duration of the second preset time period can be set according to user requirements, for example, a time period of several milliseconds to several seconds.
  • the reset button can be a single button or a button with multiple functions. After the user judges that the wireless headset 100 is dead, the user presses the button to charge The reset signal is triggered by means of the reset button on the bin 200, the duration of pressing the reset button, the number of times the reset button is pressed, or pressing multiple buttons at the same time.
  • the charging bin 200 sends a reset verification signal to the system circuit 140 for the third preset time period after the reset signal is output by the charging bin 200 for verifying the system circuit. Whether the 140 is reset, that is, whether it returns to normal from the dead state, and records the number of times the reset verification signal is sent as 1.
  • the charging bin 200 If the charging bin 200 receives a reply signal corresponding to the reset verification signal, the charging bin 200 knows that the system circuit 140 has returned to normal , and set the number of times of sending the reset verification signal to 0, if the charging case 200 does not receive the reply signal corresponding to the reset verification signal within the preset time period, the charging case 200 automatically sends the reset signal to the wireless earphone 100, after the third Send the reset verification signal again after a preset period of time, and record the number of times the reset verification signal is sent plus 1, which is 2,...
  • the charging compartment 200 stops automatically sending the reset signal, the charging bin 200 sends out an alarm to tell the user that the system circuit 140 has not been reset successfully.
  • the first threshold is, for example, 3, 4, 5, 6, 7, 8, 9, 10 and other numbers.
  • the third preset time period is greater than the first preset time period.
  • the wireless earphone 100 further includes a charge management circuit, one end of the charge management circuit is connected to the positive pole of the first battery 110 (the first switch unit is placed below) or the first switch unit of the first switch unit (the first switch unit is placed above).
  • the two terminals are electrically connected, and the other end of the charging management circuit is electrically connected to the first power supply contact GCD1, and the charging management circuit is used to provide a charging voltage and a charging current conforming to the charging curve of the first battery 110 .
  • the first battery protection circuit 120 is located on the first chip, and the first switch unit 130 is located outside the first chip.
  • the first switch unit 130 and the first battery protection circuit 120 may be packaged together or not. Packaged together. But the present application is not limited thereto. In other embodiments of the present application, the first battery protection circuit 120 and the first switch unit 130 are located on the same chip.
  • the first battery protection circuit 120 may only have a reset and restart function, or may only have a function of entering the shipping mode.
  • the battery protection component composed of the first battery protection circuit 120 and the first switch unit 130 is not limited to be used for wireless earphones, but can also be used for other electronic devices, such as electronic cigarettes, etc., the first The battery protection circuit 120 can determine whether it is a normal communication signal, a reset signal, or a ship entering signal by detecting the time width of the high level and/or the time width of the low level and the number of pulse signals of the pulse signal.
  • the charging bin 200 further includes an internal circuit 210 of the charging bin, and the internal circuit 210 of the charging bin is electrically connected to the second contact.
  • the internal circuit 210 of the charging compartment includes a second battery, a second battery protection circuit, a third switch unit, a switch circuit, and the like.
  • the capacity of the second battery is greater than the capacity of the first battery 110, for example, the capacity of the second battery is 2 times, 3 times, 4 times, 5 times, 8 times, 10 times of the capacity of the first battery 110 , 20 times, 30 times, 40 times, 50 times, etc.
  • the second battery is used to charge the first battery 110 when the wireless earphone 100 is accommodated in the charging compartment 200;
  • the second battery protection circuit includes a second power supply terminal, a second battery Two power supply ground terminals, the second over-discharge voltage protection unit, the second discharge over-current protection unit, the second reference voltage generation unit, the second logic control unit, the second power supply terminal and the second power supply ground terminal correspond to the second battery
  • the positive and negative poles are electrically connected, the second logic control unit is electrically connected to the third switch unit for controlling the opening or closing of the third switch unit, and the third switch unit is used to control the second battery to supply power to the switching circuit;
  • the switching circuit It is electrically connected with the second contact, and the switching circuit is used to
  • an embodiment of the present application also provides a method for controlling a battery protection component, including the following steps:
  • the battery protection module recognizes the incoming signal of the ship
  • the battery protection component delays entering the shipping mode for an eighth preset time period and outputs a shipping feedback signal to the system circuit 140 to shut down the system circuit 140 within the eighth preset time period.
  • Figure 6 is a circuit block diagram of the wireless earphone assembly of the second embodiment of the present application, this embodiment is similar to the first embodiment, so the parts not described in this embodiment can refer to the first embodiment, this embodiment
  • the main difference between this example and the first embodiment is the number of first contacts and second contacts.
  • the number of the first contacts is three, which are respectively the first power supply contact GCD1, the first ground contact DCD1 and the first communication contact TCD1, and the number of the second contacts is the same as that of the first contacts Corresponding to the numbers, they are respectively the second power supply contact GCD2, the second ground contact DCD2 and the second communication contact TCD2.
  • the first power supply contact GCD1 is electrically connected to the second power supply contact GCD2
  • the first ground contact DCD1 is electrically connected to the second ground contact DCD2
  • the point TCD1 is electrically contacted with the second communication contact TCD2.
  • the number of first contacts may be more, and the number of second contacts may also be more.
  • the first power supply contact GCD1, the first ground contact DCD1, the second power supply contact GCD2, and the second ground contact DCD2 are mainly used for the charging compartment 200 to charge the first battery 110 of the wireless earphone 100
  • the first communication contact TCD1 and the second communication contact TCD2 are mainly used for communication between the charging case 200 and the wireless earphone 100
  • the first power supply contact GCD1 is electrically connected to the positive pole of the first battery 110 via the charge management circuit
  • the first ground contact DCD1 is electrically connected to the second end of the first switch unit 130
  • the first communication contact The TCD1 is electrically connected to the system circuit 140 and the shipping terminal CTL of the first battery protection circuit 120 respectively.
  • the first communication contact TCD1 and the second communication contact TCD2 are not only used to receive and send communication signals between the charging bin 200 and the system circuit 140, but the first communication contact TCD1 is also used to receive the charging bin 200 via The shipping entry signal output by the second communication contact TCD2, after the shipping terminal CTL of the first battery protection circuit 120 receives the shipping entry signal, the first battery protection circuit 120 delays the eighth preset time period to enter the shipping mode, In the shipping mode, the first switch unit 130 is turned off so that the first battery 110 stops supplying power to the system circuit 140, that is, the discharge circuit of the first battery 110 is disconnected. A battery protection circuit 120 is in a zero power consumption mode. In addition, in this embodiment, the first communication contact TCD1 is also used to receive a reset signal. In addition, in other embodiments of the present application, the first battery protection circuit 120 may not be in the zero power consumption mode in the shipping mode. At this time, the first battery protection circuit 120 works normally or at least some modules do not consume power.
  • Figure 7 is a circuit block diagram of the electronic device of the third embodiment of the present application, the battery protection component of this embodiment is similar to the first embodiment, so the parts not described in this embodiment can refer to the first embodiment
  • the battery protection component further includes a capacitance detection circuit 2200 .
  • this embodiment provides an electronic device, such as an electronic cigarette, and this embodiment takes the electronic device as an electronic cigarette as an example for illustration.
  • the electronic device is, for example, the wireless earphone assembly of the first embodiment.
  • the electronic cigarette may be a conventional electronic cigarette or a disposable electronic cigarette.
  • the electronic cigarette includes a cigarette stick and a pod, and the pod is connected to the pod.
  • the pod can be a replaceable pod, that is, the pod can be removed from the pod and replaced with a new pod, the pod can be reused, and the pod will be allocated with the first battery 110 Charging interface for charging.
  • the pod can also be a non-replaceable pod, that is, the pod cannot be removed from the device for replacement. At this time, the device will not be allocated a charging port for charging the first battery 110 .
  • the tobacco rod includes a hollow tobacco rod casing, a first battery 110 , a battery protection component, a system circuit 140 and an airflow sensor 133 .
  • the first battery 110, the battery protection component, the system circuit 140 and the air flow sensor 133 are located in the cigarette rod casing;
  • the battery protection component includes a first battery protection circuit 120 and a first switch unit 130, the first battery protection circuit 120, the first Please refer to the first embodiment for the connection relationship of the switch unit 130 , the first battery 110 , and the system circuit 140 , and details are not repeated here.
  • the system circuit 140 includes a Microcontroller Unit (MCU, Microcontroller Unit), etc.
  • the airflow sensor 133 is, for example, a microphone or MEMS.
  • the system circuit 140 is electrically connected to the airflow sensor 133 and the atomizer 132 in the cartridge, respectively.
  • the first battery protection circuit 120 further includes a capacitance detection circuit 2200.
  • the capacitance detection circuit 2200 is used to electrically connect the detection electrode 2210.
  • the capacitance detection circuit 2200 is also connected to the first A battery protection circuit 120 is electrically connected, and when the capacitance detection circuit 2200 detects a change in capacitance, the capacitance detection circuit 2200 sends a shipping entry signal to the shipping terminal CTL of the first battery protection circuit 120, and the shipping terminal CTL transmits the shipping entry signal to the CTL signal sampling unit 121, then the shipping control unit 127 will identify the shipping incoming signal, and the shipping control unit 127 will delay the eighth preset time period to output the shipping control signal after identifying the shipping incoming signal, and then output the shipping control signal in the eighth preset time period.
  • the first battery protection circuit 120 outputs the shipping feedback signal within the time period to the system circuit 140 and the capacitance detection circuit 2200 through the shipping terminal CTL.
  • micro control unit of the system circuit 140 receives and recognizes the shipping feedback signal
  • micro The control unit controls the system circuit 140 to shut down in order, and the system circuit 140 can be shut down soon.
  • the shutdown is at the millisecond or microsecond level.
  • the first battery protection Circuitry 120 enters shipping mode.
  • the first battery protection circuit 120 shuts down the system circuit 140 before entering the shipping mode, so as to prevent the system circuit 140 from hard power-off due to the disconnection of the first switch unit 130, which may damage the software and hardware of the system circuit 140
  • the processing method of shutting down the system circuit 140 first and then entering the shipping mode can protect the security of the software and hardware of the system circuit 140 .
  • the capacitance detection circuit 2200 includes a capacitance detection unit 2220 , a second power supply terminal VDD2 , and a second power supply ground terminal GND2 .
  • the capacitance detection unit 2220 includes a sensor oscillation circuit, a sensor and reference detection circuit, a timing counter and function option control circuit, a touch detection circuit, an oscillation circuit, a voltage regulator circuit, a timing control circuit, an output mode and a drive circuit, etc., Since the detection principle of the capacitance by the capacitance detection unit 2220 is a conventional technique in the art, details are not repeated here.
  • FIG. 8 only exemplifies an implementation of the capacitance detection unit 2220.
  • the capacitance detection unit 2220 may also have other implementations, and may also include other units, or may not include some of the above-mentioned unit, which can be obtained by those skilled in the art through simple deformation, and this is also the scope of the present application.
  • the capacitance detection unit 2220 is electrically connected to the second power supply terminal VDD2 and the second power ground terminal GND2, and the second power supply terminal VDD2 and the second power ground terminal GND2 correspond to the positive and negative poles of the first battery 110 are electrically connected, so that the first battery 110 can supply power to the capacitance detection unit 2220 to make the capacitance detection unit 2220 work.
  • the capacitance detection circuit 2200 further includes a capacitance detection terminal CJ, and the capacitance detection terminal CJ is electrically connected to the capacitance detection unit 2220 .
  • the electronic cigarette also includes the above-mentioned detection electrode 2210, the detection electrode 2210 is electrically connected to the capacitance detection terminal CJ, the detection electrode 2210 and the capacitance detection circuit 2200 jointly detect whether the user's body part touches the surface of the electronic cigarette, for example, whether the user's lips touch the surface of the nozzle, Whether the user's palm touches the surface of the device, etc.
  • the number of detection electrodes 2210 is one or more, and the detection electrodes 2210 are electrically connected to the capacitance detection terminal CJ. That is, the detection electrodes 2210 are not exposed.
  • the detection electrode 2210 may also be located in other parts of the electronic cigarette, such as the cigarette rod.
  • the battery protection component further includes at least one reference capacitor C2, the reference capacitor C2 is located in the cigarette rod, and the reference capacitor C2 is connected in parallel with the detection electrode 2210 and is electrically connected to the capacitance detection terminal CJ.
  • the reference capacitance C2 between the capacitance detection terminal CJ and the ground.
  • the user's lips touch the suction nozzle, and a detection electrode 2210, the lips, and the ground generate a reference capacitance C2
  • the contact capacitance connected in parallel the total capacitance at this time is the sum of the reference capacitance C2 and the contact capacitance, so that the total capacitance increases, and at this time the RC time constant of the oscillation circuit in the capacitance detection unit 2220 increases correspondingly.
  • the capacitance detection unit 2220 may also implement capacitance change detection in other ways, such as conventional ways such as capacitance voltage division and charging time measurement.
  • the detection electrode 2210 may not be located at the suction nozzle of the pod, but may also be located on the cigarette rod.
  • the reference capacitor C2 may not be provided in the cigarette rod.
  • the total capacitance is not limited to increase, but may also decrease.
  • the capacitance detection circuit 2200 is also electrically connected to the first battery protection circuit 120, and when the capacitance detection circuit 2200 detects a change in capacitance, the capacitance detection circuit 2200 generates a ship entering signal or a ship exiting The signal is output to the first battery protection circuit 120 through the CTL of the shipping terminal, and then the first battery protection circuit 120 actively enters or exits the shipping mode, and the first battery protection circuit 120 enters the shipping mode only after the system circuit 140 is shut down In the shipping mode, the first switch unit 130 is turned off so that the first battery 110 stops supplying power to the system circuit 140, so that the system circuit 140, the atomizer 132, the airflow sensor 133, etc.
  • the capacitance change means that the capacitance is greater than the second threshold or the capacitance is less than the second threshold.
  • the capacitance greater than or less than the second threshold includes the total capacitance itself greater than or less than the second threshold, and also includes charging due to capacitance changes. Changes in the discharge cycle, frequency, etc. result in the charge and discharge cycle, frequency, etc. being greater than or less than the second threshold, which is also within the range included in the capacitance change.
  • the second threshold may be preset according to user requirements. In this embodiment, if the second threshold is capacitance, the second threshold is selected to be greater than the value of the reference capacitance C2 and less than the sum of the reference capacitance C2 and the contact capacitance.
  • This embodiment is to make full use of this time difference to change the mode of the electronic cigarette from shipping to Normal working mode, that is, exiting shipping mode.
  • the capacitance detection unit 2220 when the user's lips touch the suction nozzle, the capacitance detection unit 2220 will detect that the total capacitance increases, such as through frequency, charge and discharge cycle, etc., at this time, the capacitance detection unit 2220 sends a shipping The exit signal is sent to the first battery protection circuit 120, so that the first battery protection circuit 120 exits the shipping mode, the first battery protection circuit 120 controls the first switch unit 130 to turn on, and the first battery 110 is fed to the system through the first switch unit 130.
  • the circuit 140 supplies power, the airflow sensor 133 etc.
  • the airflow sensor 133 When the user smokes, the airflow sensor 133 will detect the electrical signal changes caused by the smoking airflow, such as voltage signal changes, and the system circuit 140 will detect the electrical signal changes. The signal changes, and then controls the operation of the atomizer 132, and controls the power of the atomizer 132 according to the magnitude of the electrical signal, and controls the size of the smoke.
  • the first preset time after the user's lips leave the suction nozzle or when the electronic cigarette exits the shipping mode is for example 2-30 seconds, such as 2 seconds, 3 seconds, 5 seconds, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds, etc.
  • the first battery protection circuit 120 re-enters the shipping mode, and at this time the first switch unit 130 is turned off, so that the first battery 110 no longer supplies power to the system circuit 140, and the system The circuit 140, the airflow sensor 133, and the atomizer 132 are in a zero power consumption mode.
  • the capacitance detection circuit 2200 and the detection electrode 2210 are added in the electronic cigarette, the capacitance detection circuit 2200 and the detection electrode 2210 are not exposed on the surface of the electronic cigarette, especially the detection electrode 2210 is not exposed, and the capacitance detection method is added without changing the electronic cigarette
  • the shape is in line with the user's long-term perception of the appearance of e-cigarettes, and is easily accepted by users;
  • the electronic cigarette can enter or exit the shipping mode by detecting the change of capacitance through the capacitance detection circuit 2200. Therefore, when it is transported, stored for a long time or when the user does not use it, the electronic cigarette itself will automatically enter the shipping mode, and no additional equipment is required. Transporters, warehousers or users do additional operations, and do not need the host computer to cooperate with them. This is especially important for producers or transporters of large quantities of e-cigarettes. It will not increase the burden of additional operations, and does not require additional equipment. Cooperate to reduce costs.
  • the first switch unit 130 disconnects the discharge circuit between the first battery 110 and the system circuit 140, so that the first battery 110 stops supplying power to the system circuit 140, the system circuit 140, the airflow sensor 133, the atomizer 132, Components and circuits with large power consumption such as charging management circuits will not consume electric energy, which is beneficial to reduce the power consumption of e-cigarettes and increase the use time of e-cigarettes. Even if e-cigarettes are transported, stored or placed for a long time, e-cigarettes There is also relatively sufficient power, and the e-cigarette will not run out of power when the user experiences it in a shopping mall or when using it for the first time, which improves the user experience.
  • the capacitance detection circuit 2200 can quickly detect the capacitance change and quickly exit the shipping mode.
  • the first switch unit 130 It closes quickly in a short period of time. Generally speaking, there will be tens of milliseconds between the user's lips touching the nozzle of the electronic cigarette and the smoking action. In this embodiment, the time between the user's lips touching the nozzle and exiting the shipping mode is generally at the millisecond level.
  • the quick response can reach the microsecond level, the user can not feel that the first battery protection circuit 120 of the e-cigarette is in the shipping mode before, when the user smokes the e-cigarette, the airflow sensor 133 such as the microphone and MEMS has been blocked at this time.
  • the system circuit 140 detects the change of the electrical signal in the airflow sensor 133, and then controls the operation of the atomizer 132 and the power of the atomizer 132 to realize smoke emission. Therefore, this embodiment can not only reduce the energy consumption of electronic cigarettes, but also does not affect the user's long-term use habits, and does not need to increase the user's operations. Energy consumption of electronic cigarettes;
  • the electronic cigarette when the user’s lips touch the suction nozzle, the electronic cigarette exits the shipping mode, and at the first preset time after the user’s lips leave the suction nozzle or touch the suction nozzle, the electronic cigarette automatically enters the shipping mode, and the first switch unit 130 Disconnecting the discharge circuit between the first battery 110 and the system circuit 140 can greatly reduce the energy consumption of the electronic cigarette, that is, the electronic cigarette works in the normal working mode when the user smokes, and especially when the user does not smoke. During the gap time between two puffs, the electronic cigarette is also in the shipping mode. This treatment can minimize the power consumption of the electronic cigarette and greatly increase the use time of the electronic cigarette.
  • the first battery 110 can be used for a long time, and the user It does not require frequent charging, which improves the user's convenience;
  • the capacitance detection circuit 2200 is always powered by the first battery 110, and the power consumption of the capacitance detection circuit 2200 is at the nanoampere level, which is very low and will not reduce the standby time of the electronic cigarette.
  • the cost of circuit 2200 is very low, and it will not increase the relatively large cost of electronic cigarettes;
  • the electronic cigarette since the first switch unit 130 is automatically disconnected during transportation, storage or when the user is not using it, the electronic cigarette is in the shipping mode, so the system circuit 140 will not consume power, even if the airflow sensor 133 is due to The abnormal shape is changed (due to the airflow), the electronic cigarette will not work, and there will be no problem of false triggering of the electronic cigarette;
  • the first battery protection circuit 120 can cut off the connection between the first battery 110 and the system circuit 140 in time.
  • the electrical connection improves the safety performance of the electronic cigarette.
  • the system circuit 140, the airflow sensor 133 and other circuits are not powered, even if the electronic cigarette has an abnormality such as a short circuit, there will be no safety problem.
  • each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments.
  • For the same and similar parts in each embodiment refer to each other, that is, Can.
  • the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

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Abstract

本申请实施例提供一种电池保护组件,包括第一电池保护电路和第一开关单元;其中,第一电源供电端和第一电源接地端用于对应与第一电池的正、负极电连接,第一逻辑控制单元与第一开关单元电连接以用于控制第一开关单元的开启或者关断,第一开关单元用于控制第一电池供电给系统电路;其中,当第一电池保护电路识别船运进入信号时第一电池保护电路延迟第八预设时间段,在第八预设时间段内第一电池保护电路输出船运反馈信号给系统电路以使系统电路关机,在经过第八预设时间段后第一电池保护电路进入船运模式,在船运模式第一开关单元关断以使第一电池停止向系统电路供电。本申请实施例还提供一种无线耳机组件、电子装置及控制方法。

Description

一种电池保护组件、无线耳机组件、电子装置及控制方法
本申请要求于2022年1月14日提交中国专利局、申请号为CN202210045141.X、申请名称为“一种电池保护组件、电子装置及控制方法”,以及,要求于2022年1月14日提交中国专利局、申请号为CN202210045144.3、申请名称为“一种无线耳机组件”的中国专利申请的优先权,上述在先申请的内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域,尤其涉及一种电池保护组件、无线耳机组件、电子装置及控制方法。.
背景技术
电池组件广泛应用在电子装置中,电子装置例如为蓝牙耳机、电子烟等,以提供电子装置较具弹性化的使用环境,无须受限于插座与电源供应线材的范围。一般说来,电池组件包括裸电池、电连接至裸电池以防止裸电池过充电或过放电的电池保护电路。
带电池组件的电子装置在生产地制造好以后,电池组件被充以预设的电量后电子装置处于低功耗状态,然后经过较长的时间运输、存储,最终当终端用户第一次拿到电子装置使用时,由于长时间的运输、存储,电子装置可能由于内部电流消耗而被完全放电,因此终端用户在第一次使用前必须对电子装置进行充电而恢复电量,导致用户的体验变差。
发明内容
本申请实施例所要解决的技术问题在于,提供一种电池保护组件、无线耳机组件、电子装置及控制方法。可降低电池保护组件在运输、存储过程中电量消耗,提升电池保护组件的第一电池的电量保持时间,提升用户的体验,而且可以降低系统电路的损坏。
为了解决上述技术问题,本申请实施例第一方面提供了一种池保护组件,包括第一电池保护电路和第一开关单元;
其中,第一电池保护电路包括第一电源供电端、第一电源接地端、第一过放电压保护单元、第一放电过流保护单元、第一基准电压产生单元、第一逻辑控制单元,所述第一电源供电端和第一电源接地端用于对应与第一电池的正、负极电连接,所述第一逻辑控制单元与第一开关单元电连接以用于控制第一开关单元的开启或者关断,所述第一开关单元用于控制第一电池供电给系统电路;
其中,当所述第一电池保护电路识别船运进入信号时所述第一电池保护电路延迟第八预设时间段,在第八预设时间段内所述第一电池保护电路输出船运反馈信号给所述系统电路以使所述系统电路关机,在经过第八预设时间段后所述第一电池保护电路进入船运模式,在船运模式所述第一开关单元关断以使第一电池停止向所述系统电路供电。
可选的,当所述第一电池保护电路识别所述船运进入信号时所述第一电池保护电路输出所述船运反馈信号。
可选的,所述第一电池保护电路接收船运进入信号的端子还接收通信信号;其中,所述通信信号包含第一脉冲信号,所述船运进入信号包含第三脉冲信号;其中,所述第一脉冲信号高电平的时间宽度与所述第三脉冲信号的高电平的时间宽度相异,或者,所述第一脉冲信号低电平的时间宽度与所述第三脉冲信号的低电平的时间宽度相异;或者,所述第一脉冲信号高电平的时间宽度与所述第三脉冲信号的高电平的时间宽度相异且所述第一脉冲信号低电平的时间宽度与所述第三脉冲信号的低电平的时间宽度相异。
可选的,所述第一逻辑控制单元包括CTL信号采集单元、第二脉宽计时单元、第二脉冲 计数单元、时钟产生单元、采样计时单元、船运控制单元,其中,CTL信号采集单元与所述第一电池保护电路接收船运进入信号的端子电连接,CTL信号采集单元还分别与第二脉宽计时单元、船运控制单元、时钟产生单元电连接,第二脉宽计时单元与第二脉冲计数单元电连接,时钟产生单元分别与采样计时单元、船运控制单元电连接,采样计时单元还与第二脉冲计数单元电连接,第二脉冲计数单元与船运控制单元电连接,所述第二脉冲计数单元在识别所述船运进入信号后输出信号给所述船运控制单元,所述船运控制单元延迟第八预设时间段控制所述第一电池保护电路进入船运模式,在第八预设时间段内所述船运控制单元输出船运反馈信号给所述系统电路。
可选的,所述船运进入信号包括多个相同的脉冲信号,所述第一电池保护电路根据接收的脉冲信号高电平或/和低电平的时间宽度、脉冲信号的数量判定是否为船运进入信号;或者,
所述第一逻辑控制单元包括船运控制单元,所述船运控制单元在收到与船运进入信号对应的信号时延迟第八预设时间段控制所述第一电池保护电路进入船运模式,在第八预设时间段内所述船运控制单元输出船运反馈信号给所述系统电路。
可选的,所述船运反馈信号包括持续第九预设时间段的高电平信号,所述第九预设时间段小于第八预设时间段;或者,
所述船运反馈信号包括在第九预设时间段内的预设数目的预设脉冲信号,所述第九预设时间段小于第八预设时间段。
可选的,所述第九预设时间段与所述第八预设时间段的比值范围介于1/4-1之间。
可选的,所述第一电池保护电路包括船运端,所述船运端与所述第一逻辑控制单元电连接,所述船运端用于接收所述船运进入信号,且所述船运端用于输出所述船运反馈信号。
可选的,所述电池保护组件还包括电容检测电路,所述电容检测电路包括电容检测单元,所述电容检测电路用于电连接检测电极,所述电容检测电路还与所述第一电池保护电路电连接,当所述电容检测单元检测到电容变化时所述电容检测模块发送船运进入信号给所述第一电池保护电路;或者,
所述船运进入信号来自于充电仓。
可选的,在船运模式所述第一电池保护电路处于0耗电模式;或者,
在第八预设时间段内所述第一电池保护电路收到来自所述系统电路的关机成功信号。
可选的,所述第一电池保护电路和所述第一开关单元位于同一个芯片上;或者,所述第一电池保护电路位于第一芯片上,所述第一开关单元位于所述第一芯片之外。
本申请实施例第二方面提供了一种电子装置,包括第一电池、系统电路和上述的电池保护组件,其中,所述第一电源供电端和所述第一电源接地端对应与所述第一电池的正、负极电连接,所述第一开关单元控制第一电池供电给系统电路,在第八预设时间段内所述第一电池保护电路输出所述船运反馈信号给所述系统电路,所述船运反馈信号用于使所述系统电路关机。
可选的,所述系统电路包括微控制单元,所述微控制单元接收所述船运反馈信号并控制所述系统电路关机。
本申请实施例第三方面提供了一种电池保护组件的控制方法,包括:
识别船运进入信号;
延迟第八预设时间段进入船运模式且在第八预设时间段内输出船运反馈信号给系统电路以使所述系统电路关机。
本申请实施例的第一电池保护电路识别船运进入信号时第一电池保护电路延迟第八预设时间段,在经过第八预设时间段后第一电池保护电路进入船运模式,在船运模式所述第一开关单元关断以使第一电池停止向所述系统电路供电。在船运模式可以极大的降低第一电池的能量消耗,第一电池的电量可以保留很长的时间,即使电子装置经过长时间运输第一电池的 电量也不会耗尽。而且,在第八预设时间段内所述第一电池保护电路输出船运反馈信号给所述系统电路以使所述系统电路关机,这样第一电池保护电路在进入船运模式前先将系统电路关机,防止系统电路由于第一开关单元关断导致硬断电,导致系统电路软硬件可能损坏,先让系统电路关机再进入船运模式的处理方式可以保护系统电路软硬件的安全。
本申请实施例第四方面提供了一种无线耳机组件,包括无线耳机和充电仓,所述无线耳机可收纳入所述充电仓;
其中,所述无线耳机包括第一电池、第一电池保护电路、系统电路、第一开关单元和多个第一触点,所述第一电池保护电路包括第一电源供电端、第一电源接地端、第一过放电压保护单元、第一放电过流保护单元、第一基准电压产生单元、第一逻辑控制单元,所述第一电源供电端和第一电源接地端分别与所述第一电池的正、负极电连接,所述第一逻辑控制单元与第一开关单元电连接以用于控制第一开关单元的开启或者关断,所述第一开关单元用于控制第一电池供电给系统电路,所述第一电池保护电路还与所述第一触点电连接;
所述充电仓包括多个第二触点,所述第二触点与所述第一触点接触式电连接,所述充电仓输出船运进入信号,所述船运进入信号经由第二触点、第一触点输出给所述第一电池保护电路,所述第一电池保护电路进入船运模式,在船运模式所述第一开关单元关断以使第一电池停止向系统电路供电。
可选的,多个所述第一触点其中两个为第一供电触点和第一接地触点,多个所述第二触点其中两个为第二供电触点和第二接地触点,当所述无线耳机收纳入充电仓时所述第二供电触点与所述第一供电触点接触式电连接,所述第二接地触点与所述第一接地触点接触式电连接;
所述第一电池保护电路包括船运端,所述船运端与所述第一供电触点电连接,所述船运端接收所述船运进入信号,所述第一电池保护电路进入船运模式。
可选的,所述第一触点的数目至少为3个,多个所述第一触点其中一个为第一通信触点,所述第二触点的数目与所述第一触点的数目对应,多个所述第二触点其中一个为第二通信触点,当所述无线耳机收纳入充电仓时所述第一通信触点与所述第二通信触点接触式电连接;
所述第一电池保护电路包括船运端,所述船运端与所述第一通信触点电连接,所述船运端接收所述船运进入信号,所述第一电池保护电路进入船运模式。
可选的,所述无线耳机传输所述船运进入信号的第一触点还用于传输通信信号给所述系统电路;其中,所述通信信号包含第一脉冲信号,所述船运进入信号包含第二脉冲信号;其中,所述第一脉冲信号高电平的时间宽度与所述第二脉冲信号的高电平的时间宽度相异,或者,所述第一脉冲信号低电平的时间宽度与所述第二脉冲信号的低电平的时间宽度相异;或者,所述第一脉冲信号高电平的时间宽度与所述第二脉冲信号的高电平的时间宽度相异且所述第一脉冲信号低电平的时间宽度与所述第二脉冲信号的低电平的时间宽度相异。
可选的,所述船运进入信号包括多个相同的脉冲信号,所述第一电池保护电路根据接收的脉冲信号高电平或/和低电平的时间宽度、脉冲信号的数量判定是否为船运进入信号。
可选的,所述充电仓包括仓体和舱盖,所述舱盖盖在仓体上以形成容纳腔,所述无线耳机容纳在所述容纳腔中,在第一电池保护电路进入船运模式后且在充电仓舱盖打开时,所述充电仓给所述无线耳机充电以使所述无线耳机退出船运模式。
可选的,在发出船运进入信号后的第四预设时间段,所述充电仓检测所述第一开关单元的第二端的电位是否改变;或者,
所述第一电池保护电路在收到船运进入信号后延迟第八预设时间段进入船运模式,在第八预设时间段内第一电池保护电路发出船运反馈信号给充电仓;或者,
当所述第一电池保护电路识别船运进入信号时所述第一电池保护电路延迟第八预设时间段,在第八预设时间段内所述第一电池保护电路输出船运反馈信号给所述系统电路以使所述系统电路关机,在经过第八预设时间段后所述第一电池保护电路进入船运模式。
可选的,所述第一逻辑控制单元包括CTL信号采集单元、第二脉宽计时单元、第二脉冲计数单元、时钟产生单元、采样计时单元、船运控制单元,其中,CTL信号采集单元与船运端电连接,CTL信号采集单元还与第二脉宽计时单元、船运控制单元、时钟产生单元电连接,第二脉宽计时单元与第二脉冲计数单元电连接,时钟产生单元分别与采样计时单元、船运控制单元电连接,采样计时单元还与第二脉冲计数单元电连接,第二脉冲计数单元与船运控制单元电连接,船运控制单元与第一开关单元的控制端电连接,船运控制单元根据输入信号控制第一电池保护电路是否进入船运模式。
可选的,在船运模式所述电池保护电路处于0耗电模式。
可选的,所述充电仓还输出复位信号,所述复位信号经由第二触点、第一触点输出给所述第一电池保护电路,所述第一逻辑控制单元控制所述第一开关单元关断以使第一电池停止向系统电路供电,所述第一开关单元关断第一预设时间段后第一逻辑控制单元控制第一开关单元开启以恢复所述第一电池向所述系统电路供电。
可选的,所述无线耳机通过同一个所述第一触点接收所述复位信号和所述船运进入信号。
可选的,当所述充电仓发送第一通信信号给所述系统电路且在第二预设时间段内未收到反馈信号时,所述充电仓产生并输出船运进入信号。
可选的,所述充电仓在输出所述复位信号后的第三预设时间段发送复位验证信号给所述系统电路以用于验证所述无线耳机是否复位,其中,所述第三预设时间段大于所述第一预设时间段。
可选的,所述第一电池保护电路和所述第一开关单元位于同一个芯片上;或者,所述第一电池保护电路位于第一芯片上,所述第一开关单元位于所述第一芯片之外。
可选的,所述第一开关单元的第一端与所述第一电池的负极电连接,所述第一开关单元的第二端分别与所述系统电路的第二端、其中一个所述第一触点电连接,所第一电池保护电路还包括系统端,所述系统端与所述第一开关单元的第二端电连接,所述第一电池的正极与所述系统电路的第一端、另一个所述第一触点电连接;或者,
所述第一电池保护电路包括系统端,所述第一开关单元的第一端与所述第一电源接地端电连接,所述第一开关单元的第二端与所述系统端电连接,所述系统端还与所述系统电路的第二端、其中一个所述第一触点电连接,所述第一电池的正极与所述系统电路的第一端、另一个所述第一触点电连接;或者,
所述第一开关单元的第一端与所述第一电池的正极电连接,所述第一开关单元的第二端与所述系统电路的第一端、其中一个所述第一触点电连接,所第一电池保护电路还包括系统端,所述系统端与所述第一开关单元的第二端电连接,所述第一电池的负极与所述系统电路的第二端、另一个所述第一触点电连接;或者,
所述第一电池保护电路包括系统端,所述第一开关单元的第一端与所述第一电源供电端电连接,所述第一开关单元的第二端与所述系统端电连接,所述系统端还与所述系统电路的第一端、其中一个所述第一触点电连接,所述第一电池的负极与所述系统电路的第二端、另一个所述第一触点电连接。
可选的,所述第二触点包含弹簧顶针,所述第一触点包含导电触片、导电引脚、导电柱、导电凸舌或者金手指。
本申请实施例的充电仓输出船运进入信号给无线耳机的第一电池保护电路,第一电池保护电路进入船运模式,在船运模式第一开关单元关断以使第一电池停止向系统电路供电。这样可以极大的降低第一电池的能量消耗,第一电池的电量可以保留很长的时间,即使无线耳机经过长时间运输第一电池的电量也不会耗尽。而且,本实施例通过充电仓向无线耳机发送船运进入信号,而不是无线耳机的系统电路发出船运进入信号或者通过无线耳机上的按键触发发送船运进入信号,可以进一步减小无线耳机的体积,且可以防止无线耳机死机或者出现故障导致无法通过系统电路进入船运模式的问题。而且,由于充电仓直接输出船运进入信号 给第一电池保护电路,不需要经过无线耳机的系统电路,船运进入信号的输送稳靠性比较高。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对实施方式中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本申请一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1a是本申请第一实施例一种无线耳机组件的电路模块图;
图1b是本申请第一实施例另一种无线耳机组件的电路模块图;
图1c是本申请第一实施例又一种无线耳机组件的电路模块图;
图1d是本申请第一实施例再一种无线耳机组件的电路模块图;
图2是本申请第一实施例一种第一逻辑控制单元的部分模块图;
图3是对应图2的时序图;
图4是本申请另一实施例一种第一逻辑控制单元的部分模块图;
图5是对应图4中与复位重启相关模块的时序图;
图6是本申请第二实施例一种无线耳机组件的电路模块图;
图7是本申请第三实施例一种电子装置的电路模块图;
图8是图7中电容检测电路的一种电路模块图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请说明书、权利要求书和附图中出现的术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或模块的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,术语“第一”、“第二”和“第三”等是用于区别不同的对象,而并非用于描述特定的顺序。本申请的电连接包含直接电连接和间接电连接,间接电连接是指电连接的两个元器件之间还可以存在其他电子元器件、引脚等。本申请提到的XX端可能是实际存在的端子,也可能不是实际存在的端子,例如仅仅为元器件的一端或者导线的一端。本申请提到的和/或包含三种情况,例如A和/或B,包含A、B、A和B这三种情况。
第一实施例
请参见图1a,本申请实施例提供一种无线耳机组件,包括无线耳机100和充电仓200,无线耳机100可收纳入充电仓200内,也可以从充电仓200中拿出来使用。在本实施例中,无线耳机100例如为蓝牙耳机等。
在本实施例中,无线耳机100包括第一电池110、第一电池保护电路120、第一开关单元130、系统电路140和多个第一触点。其中,第一电池110、第一电池保护电路120、第一开关单元130用于控制给系统电路140供电,系统电路140与第一电池保护电路120电连接,第一电池110给第一电池保护电路120供电,第一电池保护电路120起保护作用,例如当第一电池110过充电或过放电时对其进行保护,由于第一电池保护电路120如何对第一电池110过充、过放进行保护为本领域的常用技术手段,在此不再赘述。在本实施例中,系统电路140包括微控制单元、声音处理芯片、蓝牙芯片等。在本实施例中,多个第一触点用于与充电仓200实现接触式电连接,以实现充电仓200对无线耳机100进行充电、与无线耳机100进行 通信等。
在本实施例中,请参见图1a,第一电池保护电路120与第一电池110之间还设有第二电阻R2和第一电容C1,第二电阻R2和第一电容C1用于滤波。另外,在本申请的其他实施例中,第一电池110与第一电池保护电路120之间还可以不设置第二电阻R2和第一电容C1,当然也可以设有其他电路或者电子元件。
在本实施例中,第一电池110的数量为一个或多个,当为多个时,多个第一电池110可以并联也可以串联也可以串并联混合,第一电池110优选为锂电池、镍镉电池、镍氢电池等可充电电池。在本实施例中,由于无线耳机100本身体积比较小,造成第一电池110的容量也比较小,一般的,第一电池110的容量为10mAH-80mAH,例如为10mAH、20mAH、30mAH、40mAH、50mAH、60mAH、70mAH、80mAH,这种容量的第一电池110体积较小,较佳的,第一电池110的容量为20mAH-40mAH,此时第一电池110的体积更小,可以方便配置于小的无线耳机100中,便于无线耳机100的小型化,尤其方便蓝牙耳机的小型化。
在本实施例中,第一电池保护电路120包括第一电源供电端VDD1、第一电源接地端GND1、第一基准电压产生单元、第一过放电压保护单元、第一放电过流保护单元、第一逻辑控制单元、第一过充电压保护单元、第一充电过流保护单元、系统端VM等,第一电源供电端VDD1、第一电源接地端GND1对应与第一电池110的正、负极电连接,从而第一电池110可以供电给第一电池保护电路120。系统端VM用于监测流过系统电路140的电流,当然,系统端VM也可以具有其他作用。
在本申请中,第一基准电压产生单元为第一过放电压保护单元、第一放电过流保护单元等提供参考电压,从而判断第一电池110是否处于过放电压状态、放电过流状态、短路状态等。
第一过放电压保护单元用于在第一电池110放电过程中,当侦测到第一电池110电压低于第一基准电压产生单元提供的参考电压时对第一电池110进行保护,例如控制第一电池110只进行最低程度的放电等,一般停止对系统电路140供电,防止第一电池110放电过度而造成第一电池110永久性的损坏。
第一放电过流保护单元用于在第一电池110放电过程中,当侦测到放电电流过大时对第一电池110、系统电路140进行保护,例如第一电池110停止进行放电等,防止放电电流过大导致第一电池110、系统电路140的永久性损坏或出现安全问题。
第一逻辑控制单元用于控制第一电池保护电路120的每个单元的工作状态及控制逻辑,控制第一电池110是否向外放电、是否给第一电池110充电,第一逻辑控制单元可以控制整个第一电池保护电路120处于0耗电模式,也即整个第一逻辑控制单元几乎不耗电。
第一过充电压保护单元用户用于在第一电池110充电过程中,当侦测到第一电池110电压高于基准电压产生单元提供的参考电压时对第一电池110进行保护,防止第一电池110在充满电后再继续充电,防止第一电池110损坏。
第一充电过流检测单元用于在第一电池110充电过程中,当侦测到充电电流过大时对第一电池110进行保护,例如第一电池110停止对第一电池110进行充电,防止充电电流过大导致第一电池110的永久性损坏或出现安全问题。
在本实施例中,第一开关单元130与第一电池保护电路120的连接方式一般有以下几种,当然本领域的技术人员还可以根据需要针对以下描述的电路进行简单的变形,这也是在本申请的范围内。
1、请继续参见图1a,第一电池保护电路120包括开关控制端CO/DO,开关控制端CO/DO与第一逻辑控制单元电连接,第一开关单元130的控制端与开关控制端CO/DO电连接,也即第一开关单元130位于第一电池保护电路120的外面(第一开关单元130外置),第一开关单元130的第一端与第一电池110的负极电连接(第一开关单元130下置),第一电池110的负极接地,第一开关单元130的第二端分别与系统电路140、系统端VM电连接。在本实施例中,第一逻辑控制单元通过开关控制端CO/DO控制第一开关单元130开启导通或者截止 关断,从而,当第一逻辑控制单元控制第一开关单元130开启导通时,此时第一电池110可以通过第一开关单元130向系统电路140供电,系统电路140处于正常工作模式,当第一逻辑控制单元控制第一开关单元130截止关断时,第一电池110停止向系统电路140供电,系统电路140处于0耗电模式(不考虑漏电流)。在本申请一实施例中,第一电池保护电路120可以做在第一芯片上,也即此时第一开关单元130不在第一芯片上。当然,在本申请的其他实施例中,第一电池保护电路120也可以不做在第一芯片上,可以根据用户的需要进行设计。在本申请中,0耗电模式是指在理想情况不消耗第一电池110的电量,实际情况下会存在一定的漏电流,0耗电模式不是指的功率消耗实际为0,是指功率消耗接近为0。
2、请参见图1b,第一开关单元130内置在第一电池保护电路120中(第一开关单元130内置,此时第一开关单元130与第一电池保护电路120位于同一个芯片上),此时,第一开关单元130的控制端与第一逻辑控制单元电连接,第一开关单元130的第一端与第一电源接地端GND1电连接,第一电源接地端GND1与第一电池110的负极电连接(第一开关单元130下置),第一开关单元130的第二端与第一电池保护电路120的系统端VM电连接,系统端VM与系统电路140电连接。在本实施例中,第一逻辑控制单元控制第一开关单元130开启导通或者截止关断,从而,当第一逻辑控制单元控制第一开关单元130开启导通时,此时第一电池110可以通过第一开关单元130向系统电路140供电,系统电路140处于正常工作模式,当第一逻辑控制单元控制第一开关单元130截止关断时,第一电池110停止向系统电路140供电,系统电路140处于0耗电模式。在本申请一实施例中,第一电池保护电路120可以做在芯片上,也即此时第一开关单元130和第一电池保护电路120位于同一个芯片上。当然,在本申请的其他实施例中,第一电池保护电路120也可以不做在芯片上,可以根据用户的需要进行设计。
3、请参见图1c,第一电池保护电路120包括开关控制端CO/DO,开关控制端CO/DO与第一逻辑控制单元电连接,第一开关单元130的控制端与开关控制端CO/DO电连接,也即第一开关单元130位于第一电池保护电路120的外面(第一开关单元130外置),第一开关单元130的第一端与第一电池110的正极电连接(第一开关单元130上置),第一开关单元130的第二端分别与系统电路140、系统端VM电连接。在本实施例中,第一逻辑控制单元通过开关控制端CO/DO控制第一开关单元130开启导通或者截止关断,从而,当第一逻辑控制单元控制第一开关单元130开启导通时,此时第一电池110可以通过第一开关单元130向系统电路140供电,系统电路140处于正常工作模式,当第一逻辑控制单元控制第一开关单元130截止关断时,第一电池110停止向系统电路140供电,系统电路140处于0耗电模式。在本申请一实施例中,第一电池保护电路120可以做在第一芯片上,也即此时第一开关单元130不在第一芯片上。当然,在本申请的其他实施例中,第一电池保护电路120也可以不做在芯片上,可以根据用户的需要进行设计。
4、请参见图1d,第一开关单元130内置在第一电池保护电路120中(第一开关单元130内置,此时第一开关单元130与第一电池保护电路120做在同一个芯片上),此时,第一开关单元130的控制端与第一逻辑控制单元电连接,第一开关单元130的第一端与第一电源供电端VDD1电连接,第一电源供电端VDD1与第一电池110的正极电连接(第一开关单元130下置),第一开关单元130的第二端与系统端VM电连接,系统端VM与系统电路140电连接。在本实施例中,第一逻辑控制单元控制第一开关单元130开启导通或者截止关断,从而,当第一逻辑控制单元控制第一开关单元130开启导通时,此时第一电池110可以通过第一开关单元130向系统电路140供电,系统电路140处于正常工作模式,当第一逻辑控制单元控制第一开关单元130截止关断时,第一电池110停止向系统电路140供电,系统电路140处于0耗电模式(不考虑漏电流)。在本申请一实施例中,第一电池保护电路120可以做在芯片上,也即此时第一开关单元130和第一电池保护电路120位于同一个芯片上。当然,在本申请的其他实施例中,第一电池保护电路120也可以不做在芯片上,可以根据用户的需要进行设计。
在上述4种连接方式中,第一开关单元130包括充电开关和放电开关,其中,充电开关和放电开关为MOS或者其他合适的场效应管等,例如均为NMOS、PMOS等,充电开关和放电开关分别与第一逻辑控制单元电连接,例如在图1a和图1c中,第一电池保护电路120的开关控制端CO/DO包括充电开关控制端和放电开关控制端,充电开关控制端与充电开关的控制端电连接,放电开关控制端与放电开关的控制端电连接,充电开关控制端与放电开关控制端分别与第一逻辑控制单元电连接,实现第一逻辑控制单元对充电开关、放电开关的控制。当需要第一电池110停止向系统电路140供电时,此时可以通过关断放电开关,可以使第一电池110的放电回路断开,此时充电开关可以开启,也可以关断。另外,在本申请的其他实施例中,第一开关单元130还可以包括开关管和衬底控制电路,开关管为MOS或者其他场效应管等,开关管的控制端与开关控制端CO/DO电连接,衬底控制电路与第一逻辑控制单元电连接,衬底控制电路用于实现开关管的衬底的正确偏置,例如在第一电池110放电和第一电池110充电时使开关管处于不同的偏置。但本申请不限于此,在本申请的其他实施例中,第一开关单元130还可以是本领域的其他常规实现形式。
请继续参见图1a-图1d,在本实施例中,第一电池保护电路120与第一触点电连接。具体而言,在本实施例中,第一触点的数目为两个,分别为第一供电触点GCD1和第一接地触点DCD1,其中,第一供电触点GCD1经由充电管理电路与第一电池110的正极电连接,第一接地触点DCD1与第一开关单元130的第二端电连接。从而,当无线耳机100放回充电仓200且充电回路导通时,充电仓200可以通过第一供电触点GCD1、第一接地触点DCD1实现给第一电池110充电。而且,在本实施例中,第一供电触点GCD1还与系统电路140电连接,从而充电仓200还可以通过第一供电触点GCD1与系统电路140进行通信。
在本实施例中,充电仓200包括多个第二触点,第二触点的数目与第一触点的数目对应,第二触点包括第二供电触点GCD2和第二接地触点DCD2,当无线耳机100放入充电仓200时,第二供电触点GCD2与第一供电触点GCD1电连接,第二接地触点DCD2与第一接地触点DCD1电连接,从而实现充电仓200与无线耳机100电力的传输与通信。
在本实施例中,第一供电触点GCD1、第二供电触点GCD2实现接触式电连接,第一接地触点DCD1、第二接地触点DCD2实现接触式电连接。在本实施例中,第一触点包含导电触片、导电引脚、导电柱、导电凸舌或者金手指,在本实施例中,第二触点包含弹簧顶针(pogopin),可以实现第一触点、第二触点比较好的接触式电连接。
为了降低无线耳机100在远距离运输时的功耗,在本实施例中,充电仓200输出船运进入信号,船运进入信号经由第二触点、第一触点输出给第一电池保护电路120,触发第一电池保护电路120进入船运模式,在船运模式第一开关单元130断开以使第一电池110停止向系统电路140供电,也即第一电池110的放电回路被断开,此时放电开关断开,且在船运模式第一电池保护电路120处于0耗电模式,0耗电模式是指在理想情况不消耗第一电池110的电量,实际情况下会存在一定的漏电流,0耗电模式不是指的功率消耗实际为0,是指功率消耗接近为0。这样可以极大的降低第一电池110的能量消耗,第一电池110的电量可以保留很长的时间,即使无线耳机100经过长时间运输第一电池110的电量也不会耗尽。而且,本实施例通过充电仓200向无线耳机100发送船运进入信号,而不是无线耳机100的系统电路140发出船运进入信号或者通过无线耳机100上的按键触发发送船运进入信号,可以进一步减小无线耳机100的体积,即使系统电路140出现问题,例如死机等问题,第一电池保护电路120也能成功进入船运模式,提升了稳靠性。另外,在本申请的其他实施例中,在船运模式第一电池保护电路120还可以不处于0耗电模式,此时,第一电池保护电路120正常工作或者至少部分模块不耗电。
在本实施例中,第一电池保护电路120还包括船运端CTL,船运端CTL用于使第一电池 保护电路120进入船运模式,船运端CTL与第一供电触点GCD1电连接。从而,当充电仓200通过第二供电触点GCD2、第一供电触点GCD1发送船运进入信号过来时,船运端CTL会收到船运进入信号,船运进入信号为充电仓200与无线耳机100协议好的信号,第一电池保护电路120根据相关协议能识别船运进入信号,当第一电池保护电路120识别船运进入信号,第一电池保护电路120进入船运模式。
在本实施例中,系统电路140也会与第一供电触点GCD1电连接,以实现无线耳机100放回充电仓200后充电仓200与系统电路140的通信。也即,在本实施例中,第一供电触点GCD1既会传输船运进入信号,也会传输与系统电路140的通信信号,两者的信号都为脉冲信号。为了防止误触发,在本实施例中,通信信号包含第一脉冲信号,通过计算连续的或者预设时间段内累计的第一脉冲信号的数量进行通信信号的区别,其中,第一脉冲信号为一个周期的脉冲信号,第一脉冲信号的高电平、低电平的时间宽度占比已预设好;船运进入信号包含第三脉冲信号,第三脉冲信号为一个周期的脉冲信号,第三脉冲信号高电平、低电平的时间宽度占比已预设好,第三脉冲信号的周期与第一脉冲信号的周期可以相同,也可以不同。
在本实施例中,第三脉冲信号的高电平的时间宽度(第三脉宽)与第一脉冲信号的高电平的时间宽度(第一脉宽)相异,例如第一脉宽范围为1ms-2.5ms,例如为1ms、1.1ms、1.2ms、1.3ms、1.4ms、1.5ms、1.6ms、1.7ms、1.8ms、1.9ms、2ms、2.1ms、2.2ms、2.3ms、2.4ms、2.5ms等,例如第三脉宽范围为4sm-6.5ms,例如为4ms、4.1ms、4.2ms、4.3ms、4.4ms、4.5ms、4.6ms、4.7ms、4.8ms、4.9ms、5ms、5.1ms、5.2ms、5.3ms、5.4ms、5.5ms、5.6ms、5.7ms、5.8ms、5.9ms、6ms、6.1ms、6.2ms、6.3ms、6.4ms、6.5ms等,本实施例以第三脉宽为5ms为例进行说明,第三脉冲信号的低电平的时间宽度与第一脉冲信号的低电平的时间宽度相同或者相异,从而,第一电池保护电路120通过侦测脉冲信号的高电平的时间宽度和脉冲信号的数量就可以判定是正常通信信号还是船运进入信号,这样可以极大的避免船运进入信号或者通信信号的误触发。例如,第一电池保护电路120上升沿和下降沿触发,第一电池保护电路120收到第三脉宽的高电平信号,且连续或者预设时间段内累计收到5个或者5个以上的第三脉冲信号,本实施例以24个第三脉冲信号构成船运进入信号为例进行说明,则第一电池保护电路120判定该脉冲信号为船运进入信号,本实施例通过既计算高电平的脉宽宽度,又计算数量,可以极大的避免误触发。另外,在本申请的其他实施例中,第三脉冲信号的低电平的时间宽度(第三脉宽)与第一脉冲信号的低电平的时间宽度(第一脉宽)相异,第三脉冲信号的高电平的时间宽度与第一脉冲信号的高电平的时间宽度相同或者相异,第一电池保护电路120通过侦测脉冲信号的低电平的宽度和脉冲信号的数量就可以判定是正常通信信号还是船运进入信号。另外,在本申请的其他实施例中,第三脉冲信号的高电平的时间宽度(第三高脉宽)与第一脉冲信号的高电平的时间宽度(第一高脉宽)相异,且第三脉冲信号的低电平的时间宽度(第三低脉宽)与第一脉冲信号的低电平的时间宽度(第一低脉宽)也相异,此时第三脉冲信号的周期与第一脉冲信号的周期相异,第一电池保护电路120通过侦测脉冲信号的高电平的时间宽度、低电平的时间宽度和脉冲信号的数量判定是正常通信信号还是船运进入信号。在本实施例中,船运进入信号包含24个连续的第三脉冲信号或者包括累计的24个第三脉冲信号。但本申请不限于此,在本申请的其他实施例中,船运进入信号还可以包括多个第三脉冲信号和多个第一脉冲信号,本领域的技术人员可以根据实际要求进行设置。
在本实施例中,第三脉冲信号的高电平和/或低电平的时间宽度(第三脉宽)与第一脉冲信号的高电平和/或低电平的时间宽度(第一脉宽)两者相差大于10%,一般脉冲产生时脉冲时间宽度的误差可以控制在10%以内,这样即使脉冲发生装置产生误差,第一电池保护电路120也不会出现将第一脉冲信号误判为第三脉冲信号,或者反过来。较佳的,第三脉冲信号的高电平和/或低电平的时间宽度比第一脉冲信号的高电平和/或低电平的时间宽度最好大至少20%或者小至少20%,这样可以进一步防止误判。
请参见图2,在本实施例中,第一电池保护电路120的第一逻辑控制单元包括CTL信号采样单元121、第二脉宽计时单元1222、第二脉冲计数单元1232、时钟产生单元124、采样 计时单元125、船运控制单元127,其中,CTL信号采样单元121与船运端电连接,CTL信号采样单元121还与第二脉宽计时单元1222、船运控制单元127的第一输出端SM、时钟产生单元124电连接,第二脉宽计时单元1222与第二脉冲计数单元1232电连接,时钟产生单元124分别与采样计时单元125、船运控制单元127电连接,采样计时单元125还与第二脉冲计数单元1232电连接,第二脉冲计数单元1232与船运控制单元127电连接,船运控制单元127的第二输出端SN用于与第一开关单元的控制端电连接,船运控制单元127根据输入信号控制第一电池保护电路120是否进入船运模式。
具体而言,请结合参见图2和图3,在本实施例中,CTL信号采样单元用于接收船运端CTL收到的脉冲信号,CTL信号采样单元121实时或者分时采集船运端处的信号,CTL信号采样单元控制时钟产生单元124输出时钟脉冲给采样计时单元125,采样计时单元125用于对CTL信号采样单元进行计时,CTL信号采样单元将接收的脉冲信号输出给第二脉宽计时单元1222,第二脉宽计时单元1222用于判断高电平的时长是否与第三脉宽相等或者在误差范围内,如果是则判定为一个第三脉冲信号,并将该第三脉冲信号输送给第二脉冲计数单元1232,第二脉冲计数单元1232计数第三脉冲信号的数量加1,如果为否则不输送给第二脉冲计数单元1232;当第二脉冲计数单元1232得到的第三脉冲信号的数量大于或等于第二数量阈值且采样计时单元125计时的时间在第七预设时间段内,则第二脉冲计数单元1232输出第三信号给船运控制单元127,此时船运控制单元127输出重置信号给CTL信号采样单元,CTL信号采样单元121输出置零信号用于控制第二脉冲计数单元1232存储的第三脉冲信号的数量置零及控制采样计时单元125重新计时,而且CTL信号采样单元被强制拉高为高电平,同时船运控制单元127通过时钟产生单元124进行计时,且拉高的时长大于或等于第九预设时间段;当船运控制单元127计时经过第八预设时间段,船运控制单元127输出船运控制信号用于使第一电池保护电路120进入船运模式。如果在第七预设时间段内第二脉冲计数单元1232得到的第三脉冲信号的数量小于第二数量阈值,则第二脉冲计数单元1232输出第四信号给船运控制单元127,船运控制单元127其后不输出船运控制信号,且船运控制单元127也输出重置信号给CTL信号采样单元121,CTL信号采样单元121输出置零信号用于控制第二脉冲计数单元1232存储的第三脉冲信号的数量置零及控制采样计时单元125重新计时,CTL信号采样单元121开始新一轮脉冲信号的采样。在本实施例中,第七预设时间段例如为100-300ms,例如为100sm、110sm、120sm、130sm、140sm、150sm、160sm、170sm、180sm、185sm、190sm、200sm、210sm、220sm、230sm、240sm、250sm、260sm、270sm、280sm、290sm、300sm等,本实施例第七预设时间段为200ms;第八预设时间段例如为0.5s-5s,例如为0.5s、1s、1.5s、2s、2.5s、3s、3.5s、4s、4.5s、5s等,本实施例第八预设时间段为2s;第二数量阈值例如为大于或等于5,例如为5、6、7、8、9、10、12、14、15、16、18、20、21、22、23、24、25、26、27、28、29、30、35、40、45、50等。在第七预设时间段内脉冲计数单元计数连续的第三脉冲信号的数量或者累计的第二脉冲信号的数量。
在本实施例中,当第一电池保护电路120处于船运模式时,第一开关单元130的第一端与电池的负极电连接(第一开关单元下置),此时系统端VM被拉高为高电平,充电仓200不给无线耳机100充电,防止充电仓200对第一电池110充电导致第一电池保护电路120的系统端VM的电压被拉低,导致第一电池保护电路120退出船运模式,此时第二接地触点DCD2例如悬空设置或者充电仓200使第二接地触点DCD2为高电平。另外,当第一开关单元130的第一端与电池的正极电连接(第一开关单元上置),当第一电池保护电路120处于船运模式时,此时系统端VM被拉低为低电平,充电仓200不给无线耳机100充电,防止充电仓200对第一电池110充电导致第一电池保护电路120的系统端VM的电位被拉高,导致第一电池保护电路120退出船运模式,此时第二接地触点DCD2例如悬空设置或者充电仓200使第二接地触点DCD2为低电平。
在本实施例中,充电仓200在发出船运进入信号后的第四预设时间段内,充电仓200会 检测第一电池保护电路120是否收到船运进入信号。具体而言,船运控制单元127在接收船运进入信号后延迟第八预设时间段输出船运控制信号,船运控制信号用于使第一电池保护电路120进入船运模式,在第八预设时间段,第一电池保护电路120发出船运反馈信号给充电仓200,充电仓200通过检测是否获得船运反馈信号判断第一电池保护电路120是否成功接收到船运进入信号。在本实施例中,船运反馈信号经由船运端CTL、第一供电触点GCD1、第二供电触点GCD2输出给充电仓200。在本实施例中,船运反馈信号包括持续第九预设时间段的高电平信号。船运反馈信号为第一电池保护电路120与系统电路140、充电仓200协商好的信号,第九预设时间段的时长小于第八预设时间段的时长,例如第九时间段与第八时间段的比值范围介于1/4-1之间,例如为1/4、1/3、1/2、2/3、3/4、4/5、5/6、6/7、7/8、8/9、9/10等。另外,在本申请的其他实施例中,船运反馈信号还可以是其他的本领域的技术人员容易实现的信号,例如为第九预设时间内预设数目的预设脉冲信号。
在本实施例中,充电仓200经由第二供电触点GCD2、第一供电触点GCD1检测船运端CTL的信号是否被拉高为高电平,如果在第四预设时间段内充电仓200检测到船运端CTL的信号被拉高为高电平的时间大于或等于第九预设时间段,则充电仓200知道第一电池保护电路120已经接收到船运进入信号,其后会进入船运模式,如果在第四预设时间段内充电仓200未检测到船运端CTL的信号被拉高为高电平的时间大于或等于第九预设时间段,则充电仓200知道第一电池保护电路120未接收到船运进入信号,充电仓200发出提示信号,以提示制造商或者运输商无线耳机100未成功收到船运进入信号,其后不会成功进入船运模式。在本实施例中,第四预设时间段的时长大于第八预设时间段的时长。另外,在本申请的其他实施例中,船运反馈信号经由系统端VM、第一接地触点DCD1、第二接地触点DCD2输出给充电仓200。另外,在本申请的其他实施例中,船运反馈信号还可以经由其他的端子输出给充电仓200和系统电路140。
在本实施例中,当第一电池保护电路120识别船运进入信号时第一电池保护电路120延迟第八预设时间段,在第八预设时间段内第一电池保护电路120输出船运反馈信号给系统电路140,系统电路140包括微控制单元,微控制单元在收到和识别船运反馈信号后,微控制单元控制系统电路140按次序关机,系统电路140很快就可以关机,系统电路140识别船运反馈信号后关机是毫秒级别或者微秒级别,在经过第八预设时间段后第一电池保护电路120进入船运模式。在本实施例中,第一电池保护电路120在进入船运模式前先将系统电路140关机,防止系统电路140由于第一开关单元130断开导致硬断电,导致系统电路140软硬件可能损坏,先让系统电路140关机再进入船运模式的处理方式可以保护系统电路140软硬件的安全。
在本实施例中,船运反馈信号经由船运端CTL输出给系统电路140,也即船运端CTL为输入输出端。在本实施例中,当第一电池保护电路120识别船运进入信号时第一电池保护电路120输出船运反馈信号。但本申请不限于此,在本申请的其他实施例中,当第一电池保护电路120识别船运进入信号后第一电池保护电路120还可以延迟一段时间才输出船运反馈信号,只要保证在第八预设时间段内系统电路140能完成关机就行。
在本实施例中,第一电池保护电路120在接收船运进入信号后,第一逻辑控制单元会进行识别,当第一逻辑控制单元的第二脉冲计数单元1232识别出为船运进入信号后,第二脉冲计数单元1232输出信号给船运控制单元127,船运控制单元127延迟第八预设时间段输出船运控制信号,第一电池保护电路120延迟第八预设时间段进入船运模式。另外,在本申请的其他实施例中,系统电路140还会在第八预设时间段内发出关机成功信号,关机成功信号通过船运端CTL输出给第一电池保护电路120,用于告诉第一电池保护电路120系统电路140已经完成关机,其后船运控制单元127在经过第八预设时间段后输出船运控制信号用于控制第一电池保护电路120进入船运模式。另外,在本申请的其他实施例中,当第一电池保护电路120收到关机成功信号后船运控制单元127可以立即输出船运控制信号,不用再等待到达第八预设时间段,这样可以节省时间。
在本实施例中,充电仓200与上位机进行有线通信或者无线通信,上位机触发充电仓200产生并输出船运进入信号,上位机一般是工厂端的中心控制器,该中心控制器可以触发一定区域内的所有充电仓200产生并输出船运进入信号。本实施例通过将船运进入信号产生装置设置在充电仓200内,而不是设置在无线耳机100中,可以进一步缩减无线耳机100的体积,有利于无线耳机100的小型化。
在本实施例中,充电仓200包括仓体和仓盖,仓盖一端与仓体一端铰接,仓盖盖住仓体以形成容纳腔,容纳器用于容纳无线耳机100,仓盖可以打开也可以关闭。在充电仓200知晓无线耳机100进入船运模式后,当用户打开充电仓200的仓盖,充电仓200检测到仓盖打开信号时,例如通过磁铁和霍尔传感器的配合检测到用户打开充电仓200的仓盖,例如磁铁位于仓盖上,霍尔传感器位于与仓盖连接的仓体上,或者反过来,充电仓200经由第二触点、第一触点开始给无线耳机100充电,从而将第一电池保护电路120的系统端VM的电位拉低,从而第一电池保护电路120退出船运模式,第一电池保护电路120恢复正常工作,控制第一开关单元130开启导通,第一电池110恢复给系统电路140供电,在用户从充电仓200内拿出无线耳机100时,无线耳机100可以正常工作。
另外,当无线耳机100因为各种原因导致死机时,充电仓200还会输出复位信号,复位信号经由第二触点、第一触点输出给第一电池保护电路120,复位信号不需要经过系统电路140,第一电池保护电路120收到复位信号后,第一电池保护电路120的第一逻辑控制单元控制第一开关单元130断开,这里的断开是放电开关的断开,从而第一电池110的放电回路断开,系统电路140被停止供电,其后在断开第一预设时间段后,第一逻辑控制单元控制第一开关单元130重新导通开启以恢复第一电池110向系统电路140供电,此时系统电路140重新被供电,系统电路140重新加载数据和程序,无线耳机100实现复位正常重启。在本实施例中,第一预设时间段可以根据用户的需求进行设定,例如第一预设时间段的范围为10ms-5s,例如为10ms、50ms、100ms、200ms、300ms、400ms、500ms、600ms、700ms、800ms、900ms、1s、1.5s、2s、2.5s、3s、3.5s、4s、4.5s、5s等。本实施例中通过充电仓200发送复位信号给无线耳机100,利用现有无线耳机100中的第一开关单元130实现系统电路140的复位重启功能,不需要单独增设复位IC芯片和与复位IC芯片搭配的第二开关单元,从而极大的降低了成本,增加了无线耳机组件的竞争力。而且,由于本实施例不需要通过系统电路140产生或输出复位信号,充电仓200可以直接通过第二触点、第一触点发送复位信号给第一电池保护电路120,不需要系统电路140的介入,可以克服无线耳机100的系统电路140完全死机没法产生或者输出复位信号的缺陷,实现对系统电路140的复位和重启,使无线耳机100的系统电路140恢复正常。
在本实施例中,第一电池保护电路120还通过船运端CTL接收复位信号,也即船运端CTL可以分时复用,从而不需要单独设置复位端,有利于降低成本。当充电仓200通过第二供电触点GCD2、第一供电触点GCD1发送复位信号过来时,船运端CTL会收到复位信号,复位信号为充电仓200与无线耳机100协议好的信号,第一电池保护电路120根据相关协议能识别复位信号,当第一电池保护电路120识别复位信号,第一电池保护电路120的第一逻辑控制单元控制第一开关单元130断开第一预设时间段后,第一开关单元130重新开启导通,第一电池110恢复给系统电路140供电,实现系统电路140的复位和重启,从而无线耳机100可以从死机状态恢复,无线耳机100可以正常使用。另外,在本申请的其他实施例中,第一电池保护电路120可以分别设置复位端和船运端CTL,复位端和船运端CTL分别与第一供电触点GCD1电连接。
在本实施例中,复位信号包含第二脉冲信号,第二脉冲信号为一个周期的脉冲信号,第二脉冲信号高电平、低电平的时间宽度占比已预设好,第二脉冲信号的周期与第一脉冲信号的周期、第三脉冲信号的周期可以相同,也可以不同。在本实施例中,第二脉冲信号的高电平的时间宽度(第二脉宽)与第一脉冲信号的高电平的时间宽度(第一脉宽)、第三脉冲信 号的高电平的时间宽度(第三脉宽)相异,第二脉宽的范围为2.5sm-4sm,例如为2.5ms、2.6ms、2.7ms、2.8ms、2.9ms、3ms、3.1ms、3.2ms、3.3ms、3.4ms、3.5ms、3.6ms、3.7ms、3.8ms、3.9ms、4ms等,本实施例以第二脉宽为3ms为例进行说明,第二脉冲信号的低电平的时间宽度与第一脉冲信号的低电平的时间宽度、第三脉冲信号的低电平的时间宽度相同或者相异,从而,第一电池保护电路120通过侦测脉冲信号的高电平的时间宽度和脉冲信号的数量就可以判定是正常通信信号还是复位信号,这样可以极大的避免复位信号或者通信信号的误触发。例如,第一电池保护电路120上升沿和下降沿触发,第一电池保护电路120收到第二脉宽的高电平信号,且连续或者预设时间段内累计收到5个或者5个以上的第二脉冲信号,本实施例以16个第二脉冲信号构成复位信号为例进行说明,则第一电池保护电路120判定该脉冲信号为复位信号,本实施例通过既计算高电平的脉宽宽度,又计算数量,可以极大的避免误触发。另外,在本申请的其他实施例中,第二脉冲信号的低电平的时间宽度(第二脉宽)与第一脉冲信号的低电平的时间宽度(第一脉宽)、第三脉冲信号的低电平的时间宽度(第三脉宽)相异,第二脉冲信号的高电平的时间宽度与第一脉冲信号的高电平的时间宽度、第三脉冲信号的高电平的时间宽度相同或者相异,第一电池保护电路120通过侦测脉冲信号的低电平的时间宽度和脉冲信号的数量就可以判定是正常通信信号还是复位信号。另外,在本申请的其他实施例中,第二脉冲信号的高电平的时间宽度(第二高脉宽)与第一脉冲信号的高电平的时间宽度(第一高脉宽)、第三脉冲信号的高电平的时间宽度(第三高脉宽)相异,且第二脉冲信号的低电平的时间宽度(第二低脉宽)与第一脉冲信号的低电平的时间宽度(第一低脉宽)、第三脉冲信号的低电平的时间宽度(第三低脉宽)也相异,此时第二脉冲信号的周期与第一脉冲信号的周期、第三脉冲信号的周期相异,第一电池保护电路120通过侦测脉冲信号的高电平的时间宽度、低电平的时间宽度和脉冲信号的数量判定是正常通信信号还是复位信号。在本实施例中,复位信号包含16个连续的第二脉冲信号或者包括累计的16个第二脉冲信号。另外,在本申请的其他实施例中,船运进入信号与复位信号的不同点还可以为第二脉冲信号数目的不同,例如复位信号包含16个第二脉冲信号,船运进入信号包含24个第二脉冲信号,或者反过来等。这样船运进入信号、复位信号不容易与普通的通信信号混淆,且复位信号、船运进入信号也不容易混淆。
在本实施例中,第二脉冲信号的高电平和/或低电平的时间宽度(第二脉宽)与第一脉冲信号的高电平和/或低电平的时间宽度(第一脉宽)、第三脉冲信号的高电平和/或低电平的时间宽度(第三脉宽)两者相差大于10%,一般脉冲产生时脉冲宽度的误差可以控制在10%以内,这样即使脉冲发生装置产生误差,第一电池保护电路120也不会出现将第一脉冲信号误判为第二脉冲信号、第三脉冲信号,或者反过来。较佳的,第二脉冲信号的高电平和/或低电平的时间宽度比第一脉冲信号的高电平和/或低电平的时间宽度、第三脉冲信号的高电平和/或低电平的时间宽度最好大至少20%或者小至少20%,这样可以进一步防止误判。
请参见图4,在本实施例中,第一电池保护电路120的第一逻辑控制单元包括CTL信号采样单元121、第一脉宽计时单元1221、第二脉宽计时单元1222、第一脉冲计数单元1231、第二脉冲计数单元1232、时钟产生单元124、采样计时单元125、重启控制单元126、船运控制单元127,其中,第二脉宽计时单元1222、第二脉冲计数单元1232、船运控制单元127的连接关系在前面已经描述,在此不再赘述。其中,CTL信号采样单元121还与第一脉宽计时单元1221、重启控制单元126电连接,第一脉宽计时单元1221与第一脉冲计数单元1231电连接,时钟产生单元124还与重启控制单元126电连接,采样计时单元125还与第一脉冲计数单元1231电连接,第一脉冲计数单元1231与重启控制单元126电连接,重启控制单元126的输出端Rset用于与第一开关单元的控制端电连接,重启控制单元126根据输入信号控制第一开关单元断开和导通。
具体而言,请结合参见图4和图5,在本实施例中,CTL信号采样单元121用于接收船运端CTL收到的脉冲信号,CTL信号采样单元121实时或者分时采集船运端CTL处的脉冲信号,CTL信号采样单元121控制时钟产生单元124输出时钟脉冲给采样计时单元125,采 样计时单元125用于对CTL信号采样单元121进行计时,CTL信号采样单元121将接收的脉冲信号输出给第一脉宽计时单元1221,第一脉宽计时单元1221用于判断脉冲信号的高电平的时长是否与第二脉宽相等或者在误差范围内,如果是则判定为一个第二脉冲信号,并将该第二脉冲信号输送给第一脉冲计数单元1231,第一脉冲计数单元1231计数第二脉冲信号的数量加1,如果为否则不输送给第一脉冲计数单元1231;当第一脉冲计数单元1231得到的第二脉冲信号的数量大于或等于第一数量阈值且采样计时单元125计时的时间在第六预设时间段内,则第一脉冲计数单元1231输出第一信号给重启控制单元126,重启控制单元126输出复位关断信号,复位关断信号用于控制第一开关单元130断开截止,同时重启控制单元126输出重置信号给CTL信号采样单元121,CTL信号采样单元121输出置零信号用于控制第一脉冲计数单元1231存储的第二脉冲信号的数量置零,而且重启控制单元126根据时钟产生单元124产生的时钟进行计时,在第一开关单元断开第一预设时间段后,重启控制单元126输出重启导通信号,重启导通信号用于控制第一开关单元130恢复导通,第一电池110恢复向系统电路供电;如果在第六预设时间段内第一脉冲计数单元1231得到的第二脉冲信号的数量小于第一数量阈值,则第一脉冲计数单元1231输出第二信号给重启控制单元126,则重启控制单元126不输出复位关断信号,且重启控制单元126输出重置信号给CTL信号采样单元121,CTL信号采样单元121输出置零信号用于控制第一脉冲计数单元1231存储的第二脉冲信号的数量置零及采样计时单元125重新计时,CTL信号采样单元121进行新一轮脉冲信号的采集。在本实施例中,第六预设时间段例如为50-150ms,例如为50sm、60sm、70sm、75sm、80sm、90sm、100sm、110sm、120sm、125sm、130sm、140sm、150sm等,第一数量阈值例如为大于或等于5,例如为5、6、7、8、9、10、12、14、15、16、18、20、22、24、25、28、30等。在第六预设时间段内第一脉冲计数单元1231计数连续的第二脉冲信号的数量或者累加的第二脉冲信号的数量,这可以根据用户的需求进行设置。
在本实施例中,充电仓200触发发送复位信号可以包含以下几种方式:
1、无线耳机100放入充电仓200后,充电仓200通过第二触点、第一触点发送第一通信信号给无线耳机100的系统电路140,或者充电仓200通过无线的方式发送第一通信信号给无线耳机100的系统电路140,如果系统电路140没有死机,一般系统电路140发送反馈信号经由第一触点、第二触点或者无线的方式反馈给充电仓200,如果系统电路140已经死机,则系统电路140收到第一通信信号后不会发送反馈信号给充电仓200,充电仓200在发送第一通信信号后的第二预设时间段内未收到反馈信号时,充电仓200则认为系统电路140已经死机,则充电仓200产生复位信号并经由第二触点、第一触点输出给第一电池保护电路120。在此处,第二预设时间段的时长可以根据用户需求进行设定,例如几毫秒到几秒的时间段。
2、无线耳机100放入充电仓200后,充电仓200上设有复位按键,复位按键可以为单独的按键,也可以具有多个功能的按键,用户判断无线耳机100死机后,用户按下充电仓200上的复位按键、按下复位按键的时长、按下复位按键的次数、同时按下多个按键等方式触发产生复位信号。
为了判断系统电路140是否成功复位重启,在本实施例中,充电仓200在输出复位信号的后的第三预设时间段,充电仓200发送复位验证信号给系统电路140以用于验证系统电路140是否复位,也即是否从死机状态恢复正常,并记录发送复位验证信号的次数为1,如果充电仓200收到与复位验证信号对应的回复信号,则充电仓200知道系统电路140已经恢复正常,并将发送复位验证信号的次数置0,如果充电仓200在预设时间段内未收到与复位验证信号对应的回复信号,则充电仓200自动发送复位信号给无线耳机100,经过第三预设时间段后再次发送复位验证信号,并记录发送复位验证信号的次数加1,即为2,…,当记录发送复位验证信号的数目大于第一阈值时,则充电仓200停止自动发送复位信号,充电仓200发出报警,以告诉用户系统电路140没有成功复位。在本实施例中,第一阈值例如为3、4、5、6、7、8、9、10等数目。在本实施例中,第三预设时间段大于第一预设时间段。
在本实施例中,无线耳机100还包括充电管理电路,充电管理电路的一端与第一电池110的正极(第一开关单元下置)或者第一开关单元(第一开关单元上置)的第二端电连接,充电管理电路的另一端与第一供电触点GCD1电连接,充电管理电路用于提供符合第一电池110充电曲线的充电电压和充电电流。
在本实施例中,第一电池保护电路120位于第一芯片上,第一开关单元130位于第一芯片之外,第一开关单元130和第一电池保护电路120可以封装在一起,也可以不封装在一起。但本申请不限于此,在本申请的其他实施例中,第一电池保护电路120和第一开关单元130位于同一个芯片上。
另外,在本申请的其他实施例中,第一电池保护电路120还可以只有复位重启功能,或者只有进入船运模式的功能。另外,在本申请的其他实施例中,第一电池保护电路120、第一开关单元130构成的电池保护组件不限于用于无线耳机,还可以用于其他电子装置,例如电子烟等,第一电池保护电路120通过侦测脉冲信号的高电平的时间宽度和/或低电平的时间宽度、脉冲信号的数量就可以判定是正常通信信号、复位信号、船运进入信号。
在本实施例中,充电仓200还包括充电仓内部电路210,充电仓内部电路210与第二触点电连接。充电仓内部电路210包括第二电池、第二电池保护电路、第三开关单元、切换电路等。在本实施例中,第二电池的容量大于第一电池110的容量,例如为第二电池的容量为第一电池110容量的2倍、3倍、4倍、5倍、8倍、10倍、20倍、30倍、40倍、50倍等,第二电池用于在无线耳机100容纳在充电仓200内时给第一电池110充电;第二电池保护电路包括第二电源供电端、第二电源接地端、第二过放电压保护单元、第二放电过流保护单元、第二基准电压产生单元、第二逻辑控制单元,第二电源供电端和第二电源接地端对应与第二电池的正、负极电连接,第二逻辑控制单元与第三开关单元电连接以用于控制第三开关单元的开启或者关断,第三开关单元用于控制第二电池供电给切换电路;切换电路与第二触点电连接,切换电路用于切换成充电仓200给无线耳机100充电,或者切换成充电仓200与无线耳机100通信。充电仓内部电路210的设置为本领域的常规知识,在此不再赘述。
另外,本申请实施例还提供一种电池保护组件的控制方法,包括以下步骤:
电池保护组件识别船运进入信号;
电池保护组件延迟第八预设时间段进入船运模式且在第八预设时间段内输出船运反馈信号给系统电路140以使所述系统电路140关机。
本实施例的方法可以参见前面的相关描述,在此不再赘述。
第二实施例
请参阅图6,图6是本申请第二实施例的无线耳机组件的电路模块图,本实施例与第一实施例相似,因此本实施例未描述的部分可以参照第一实施例,本实施例与第一实施例的主要不同点为第一触点、第二触点的数目。
在本实施例中,第一触点的数目为三个,分别为第一供电触点GCD1、第一接地触点DCD1和第一通信触点TCD1,第二触点的数目与第一触点的数目对应,分别为第二供电触点GCD2、第二接地触点DCD2和第二通信触点TCD2。当无线耳机100收入充电仓200时,第一供电触点GCD1与第二供电触点GCD2接触式电连接,第一接地触点DCD1与第二接地触点DCD2接触式电连接,第一通信触点TCD1与第二通信触点TCD2接触式电连接。另外,在本申请的其他实施例中,第一触点的数目还可以为更多个,第二触点的数目也可以为更多个。
在本实施例中,第一供电触点GCD1、第一接地触点DCD1、第二供电触点GCD2、第二接地触点DCD2主要用于充电仓200给无线耳机100的第一电池110充电,第一通信触点TCD1、第二通信触点TCD2主要用于充电仓200与无线耳机100的通信。在本实施例中,第一供电触点GCD1经由充电管理电路与第一电池110的正极电连接,第一接地触点DCD1与第一开关单元130的第二端电连接,第一通信触点TCD1分别与系统电路140和第一电池保护电路120的船运端CTL电连接。
在本实施例中,第一通信触点TCD1、第二通信触点TCD2除了用于接收、发送充电仓200与系统电路140的通信信号,第一通信触点TCD1还用于接收充电仓200经由第二通信触点TCD2输出的船运进入信号,第一电池保护电路120的船运端CTL接收到船运进入信号后,第一电池保护电路120延迟第八预设时间段进入船运模式,在船运模式第一开关单元130断开以使第一电池110停止向系统电路140供电,也即第一电池110的放电回路被断开,此时放电开关断开,且在船运模式第一电池保护电路120处于0耗电模式。另外,在本实施例中,第一通信触点TCD1还用于接收复位信号。另外,在本申请的其他实施例中,在船运模式第一电池保护电路120还可以不处于0耗电模式,此时,第一电池保护电路120正常工作或者至少部分模块不耗电。
第三实施例
请参阅图7,图7是本申请第三实施例的电子装置的电路模块图,本实施例的电池保护组件与第一实施例相似,因此本实施例未描述的部分可以参照第一实施例,本实施例与第一实施例的主要不同点电池保护组件还包括电容检测电路2200。
请参阅图7,本实施例提供一种电子装置,电子装置例如为电子烟,本实施例以电子装置为电子烟为例进行说明。但本申请不限于此,在本申请的其他实施例中,电子装置例如为第一实施例的无线耳机组件。在本实施例中,电子烟可以为常规的电子烟,也可以是一次性电子烟。电子烟包括烟杆和烟弹,烟弹与烟杆连接。在本申请一实施例中,烟弹可以是可更换烟弹,也即烟弹可以从烟杆上拆下来更换为新的烟弹,烟杆可以重复使用,烟杆上会配给第一电池110充电的充电接口。在本申请另一实施例中,烟弹也可以是不可更换烟弹,也即烟弹不能从烟杆上拆下来进行更换,此时烟杆上不会配给第一电池110充电的充电接口。
在本申请中,烟杆包括中空的烟杆外壳、第一电池110、电池保护组件、系统电路140和气流传感器133。其中,第一电池110、电池保护组件、系统电路140和气流传感器133位于烟杆外壳中;电池保护组件包括第一电池保护电路120和第一开关单元130,第一电池保护电路120、第一开关单元130、第一电池110、系统电路140的连接关系请见第一实施例,在此不再赘述。系统电路140包括微控制单元(MCU,Microcontroller Unit)等,气流传感器133例如为咪头或者MEMS等,系统电路140分别与气流传感器133和烟弹中的雾化器132电连接。
本实施例与第一实施例的主要区别点为船运进入信号不是通过充电仓产生和发送。请结合参见图2、图3和图7,在本实施例中,第一电池保护电路120还包括电容检测电路2200,电容检测电路2200用于电连接检测电极2210,电容检测电路2200还与第一电池保护电路120电连接,当电容检测电路2200检测到电容变化时电容检测电路2200发送船运进入信号给第一电池保护电路120的船运端CTL,船运端CTL将船运进入信号传递给CTL信号采样单元121,其后船运控制单元127会识别船运进入信号,船运控制单元127在识别船运进入信号后延迟第八预设时间段输出船运控制信号,在第八预设时间段内第一电池保护电路120输出船运反馈信号通过船运端CTL输出给系统电路140和电容检测电路2200,系统电路140的微控制单元在收到和识别船运反馈信号后,微控制单元控制系统电路140按次序关机,系统电路140很快就可以关机,系统电路140识别船运反馈信号后关机是毫秒级别或者微秒级别,在经过第八预设时间段后第一电池保护电路120进入船运模式。在本实施例中,第一电池保护电路120在进入船运模式前先将系统电路140关机,防止系统电路140由于第一开关单元130断开导致硬断电,导致系统电路140软硬件可能损坏,先让系统电路140关机再进入船运模式的处理方式可以保护系统电路140软硬件的安全。
在本实施例中,电容检测电路2200包括电容检测单元2220、第二电源供电端VDD2、第二电源接地端GND2。请参见图8,电容检测单元2220包括传感器振荡电路、传感器与参考检测电路、时序计数器与功能选项控制电路、触摸检测电路、振荡电路、稳压电路、时序控制电路、输出模式与驱动电路等,由于电容检测单元2220对电容的检测原理为本领域的常 规技术,在此不再赘述。另外,图8仅是例举了电容检测单元2220的一种实现方式,在本申请的其他实施例中,电容检测单元2220还可以有其他实现方式,还可以包含其他单元,或者不包含部分上述单元,这是本领域的技术人员通过简单的变形就可以得到,这也是本申请的范围。在本实施例中,电容检测单元2220与第二电源供电端VDD2、第二电源接地端GND2电连接,第二电源供电端VDD2、第二电源接地端GND2对应与第一电池110的正负极电连接,从而第一电池110可以给电容检测单元2220供电以使电容检测单元2220工作。
请继续参见图7,在本实施例中,电容检测电路2200还包括电容检测端CJ,电容检测端CJ与电容检测单元2220电连接。电子烟还包括上述检测电极2210,检测电极2210与电容检测端CJ电连接,检测电极2210与电容检测电路2200共同侦测用户身体部位是否接触电子烟表面,例如用户的嘴唇是否接触吸嘴表面,用户的手掌是否接触烟杆表面等。在本实施例中检测电极2210的数量为一个或者多个,检测电极2210与电容检测端CJ电连接,在本实施例中检测电极2210位于烟弹的吸嘴内,例如嵌入吸嘴内,也即检测电极2210不外露。当然,在本申请的其他实施例中,检测电极2210还可以位于电子烟的其他部位,例如烟杆。
在本实施例中,电池保护组件还包括至少一个基准电容C2,基准电容C2位于烟杆内,基准电容C2与检测电极2210并联共同与电容检测端CJ电连接。当用户未使用电子烟时,电容检测端CJ与地之间存在基准电容C2,当用户使用电子烟时,用户的嘴唇接触吸嘴,检测电极2210、嘴唇、地之间产生一个与基准电容C2并联的接触电容,此时总电容为基准电容C2与接触电容之和,从而总电容增大,此时电容检测单元2220内的振荡电路的RC时间常数相应增加,由RC振荡器原理可知,RC时间常数增大,充放电周期变长,振荡器频率相应变小,所以,通过检测电容充放电周期或频率的变化,就可以检测嘴唇是否接触吸嘴。另外,在本申请的其他实施例,电容检测单元2220还可以通过其他方式实现电容变化检测,例如电容分压方式、充电时间测量方式等常规方式。另外,在本申请的其他实施例中,检测电极2210还可以不位于烟弹的吸嘴处,还可以位于烟杆上。另外,在本申请的其他实施例中,烟杆内还可以不设有基准电容C2。另外,在本申请的其他实施例中,用户嘴唇接触吸嘴时,此时总的电容不限于为增加,还可以是减少。
请继续参见图7,在本实施例中,电容检测电路2200还与第一电池保护电路120电连接,当电容检测电路2200检测到电容变化时电容检测电路2200产生船运进入信号或者船运退出信号并通过船运端CTL输出给第一电池保护电路120,其后第一电池保护电路120主动进入或者退出船运模式,其中系统电路140关机后第一电池保护电路120才会进入船运模式,在船运模式第一开关单元130断开以使第一电池110停止向系统电路140供电,从而系统电路140、雾化器132、气流传感器133等在理想情况下均不会耗电,此时系统电路140、雾化器132、气流传感器133等电路处于0耗电模式,系统电路140、雾化器132、气流传感器133、充电管理电路等电路的电量消耗接近为0。
在本实施例中,电容变化是指电容大于第二阈值或者电容小于第二阈值,这里的电容大于或小于第二阈值包含总的电容本身大于或小于第二阈值,也包含由于电容改变导致充放电周期、频率等改变而导致充放电周期、频率等大于或小于第二阈值,这也是在电容变化包含的范围内。在本实施例中,第二阈值可以根据用户需要进行预先设置。在本实施例中,第二阈值如果是电容时,第二阈值选取大于基准电容C2的值且小于基准电容C2与接触电容之和。
一般说来,用户嘴唇接触到电子烟或者传统烟的吸嘴时,离用户最终吸烟还会存在几十毫秒的时间差,本实施例就是充分利用这段时间差来使电子烟由船运模式变更为正常工作模式,也即退出船运模式。具体而言,在本实施例中,当用户嘴唇接触到吸嘴时,电容检测单元2220会检测到总的电容增大,例如通过频率、充放电周期等,此时电容检测单元2220发送船运退出信号给第一电池保护电路120,使第一电池保护电路120退出船运模式,第一电池保护电路120控制第一开关单元130开启导通,第一电池110经由第一开关单元130给系统电路140供电,气流传感器133等被供电,第一电池保护电路120、系统电路140、气流传感器133处于正常工作模式,从用户嘴唇接触吸嘴到第一电池保护电路120、系统电路140、 气流传感器133处于正常工作模式一般在毫秒级别的时间,用户完全感受不到,当用户吸烟时,气流传感器133会侦测到吸烟气流导致电信号变化,例如电压信号变化,系统电路140会侦测到电信号变化,进而控制雾化器132工作,并根据电信号的大小控制雾化器132的功率大小,控制出烟大小。
当用户嘴唇离开吸嘴或者当电子烟退出船运模式后的第一预设时间,在此处第一预设时间例如2-30秒,例如为2秒、3秒、5秒、10秒、15秒、20秒、25秒、30秒等,第一电池保护电路120重新进入船运模式,此时第一开关单元130截止断开,从而第一电池110不再向系统电路140供电,系统电路140、气流传感器133、雾化器132处于0耗电模式。
本实施例的电子烟具有如下优点:
1、由于电子烟中增设了电容检测电路2200和检测电极2210,电容检测电路2200和检测电极2210均不外露于电子烟表面,特别是检测电极2210不外露,增设了电容检测方式不用改变电子烟的外形,符合用户对电子烟长期形成的外观感受,很容易被用户接受;
2、电子烟通过电容检测电路2200侦测电容的变化就可以进入或者退出船运模式,从而,在长时间运输、存储或者用户不使用时,电子烟本身会自动进入船运模式,不需要增设运输者、仓储者或者使用者额外操作,也不需要上位机进行配合操作,这对大批量电子烟的生产者或者运输者尤其重要,不会增加其额外操作负担,也不需要额外的设备的配合,有利于降低成本。在船运模式第一开关单元130断开第一电池110与系统电路140之间的放电回路,从而第一电池110停止向系统电路140供电,系统电路140、气流传感器133、雾化器132、充电管理电路等耗电量较大的元器件、电路均不会消耗电能,有利于降低电子烟的功耗,可以增加电子烟的使用时长,即使电子烟长时间运输、存储或者放置,电子烟也有比较充足的电能,电子烟不会出现用户在商场体验时或者第一次使用时就没电的情况,提升了用户的使用体验。尤为重要的是,用户不需要通过额外的步骤唤醒电子烟,例如当用户嘴唇接触烟弹的吸嘴时,电容检测电路2200能快速检测到电容变化,快速退出船运模式,第一开关单元130在很短时间内迅速闭合,一般说来用户嘴唇接触电子烟吸嘴到进行吸烟动作会有几十毫秒的间隔,而本实施例从用户嘴唇接触吸嘴到退出船运模式一般在毫秒级别的时间,快速响应的可以达到微秒级别,用户完全感受不到此前电子烟的第一电池保护电路120处于船运模式,当用户吸电子烟时,此时气流传感器133例如咪头、MEMS已经被通电,系统电路140侦测到气流传感器133中电信号的变化,进而控制雾化器132工作以及雾化器132的功率,实现出烟。从而本实施例既可以降低电子烟的能耗,又不影响用户长期以来形成的使用习惯,也不需要增加用户的操作,对用户非常友好,可以在不改变用户习惯的情形下很好的降低电子烟能耗;
3、本实施例在用户嘴唇接触吸嘴时电子烟退出船运模式,在用户嘴唇离开吸嘴或者接触吸嘴后的第一预设时间,电子烟自动进入船运模式,第一开关单元130断开第一电池110与系统电路140之间的放电回路,这样可以极大的降低电子烟的能耗,也即用户吸烟时电子烟工作在正常工作模式,用户不吸烟时,特别是在用户两口烟之间的间隙时间,电子烟也处于船运模式,这样处理可以极限的降低电子烟的功耗,极大的提升电子烟的使用时间,第一电池110可以使用很长的时间,用户不用频繁的充电,提升了用户的使用便利性;
4、在本实施例中,电容检测电路2200一直被第一电池110供电,电容检测电路2200的功耗为纳安级,耗电非常低,不会额外降低电子烟的待机时长,且电容检测电路2200成本非常低,也不会增加电子烟比较大的成本;
5、在本实施例中,由于在运输、仓储或者用户不使用时,第一开关单元130会自动断开,电子烟处于船运模式,从而系统电路140不会耗电,即使气流传感器133由于异常形态被改变(由于气流的原因),电子烟也不会工作,不会存在电子烟误触发工作的问题;
6、在本实施例中,由于电子烟包含第一电池保护电路120,从而电子烟证工作时出现短路等异常时,第一电池保护电路120可以及时掐断第一电池110与系统电路140的电连接,提升了电子烟的安全性能。而且,在存放、仓储或者运输时,由于电子烟处在船运模式,系 统电路140、气流传感器133等电路不被供电,即使电子烟出现短路等异常也不会存在安全问题。
另外,本实施例其他的相关描述可以参见申请人在先申请的专利,专利申请号为CN202111651757.3、CN202111651734.2、CN202111651733.8、CN202111651725.3、CN202111648279.0,这些专利申请的内容也引入到本申请作为本申请的内容,在此不再赘述。
应当理解的是,在本文中提及的“多个”是指两个或两个以上。本领域技术人员在考虑说明书及实践这里公开的申请后,将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本申请未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本申请的真正范围和精神由下面的权利要求指出。
需要说明的是,本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其它实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。对于装置实施例而言,由于其与方法实施例基本相似,所以描述的比较简单,相关之处参见方法实施例的部分说明即可。
以上所揭露的仅为本申请较佳实施例而已,当然不能以此来限定本申请之权利范围,因此依本申请权利要求所作的等同变化,仍属本申请所涵盖的范围。
尽管上面已经示出和描述了本申请的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本申请的限制,本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型,这些改进和润饰也视为本申请的保护范围。

Claims (29)

  1. 一种电池保护组件,其特征在于,包括第一电池保护电路和第一开关单元;
    其中,第一电池保护电路包括第一电源供电端、第一电源接地端、第一过放电压保护单元、第一放电过流保护单元、第一基准电压产生单元、第一逻辑控制单元,所述第一电源供电端和第一电源接地端用于对应与第一电池的正、负极电连接,所述第一逻辑控制单元与第一开关单元电连接以用于控制第一开关单元的开启或者关断,所述第一开关单元用于控制第一电池供电给系统电路;
    其中,当所述第一电池保护电路识别船运进入信号时所述第一电池保护电路延迟第八预设时间段,在第八预设时间段内所述第一电池保护电路输出船运反馈信号给所述系统电路以使所述系统电路关机,在经过第八预设时间段后所述第一电池保护电路进入船运模式,在船运模式所述第一开关单元关断以使第一电池停止向所述系统电路供电。
  2. 根据权利要求1所述的电池保护组件,其特征在于,当所述第一电池保护电路识别所述船运进入信号时所述第一电池保护电路输出所述船运反馈信号。
  3. 根据权利要求1所述的电池保护组件,其特征在于,所述第一电池保护电路接收船运进入信号的端子还接收通信信号;其中,所述通信信号包含第一脉冲信号,所述船运进入信号包含第三脉冲信号;其中,所述第一脉冲信号高电平的时间宽度与所述第三脉冲信号的高电平的时间宽度相异,或者,所述第一脉冲信号低电平的时间宽度与所述第三脉冲信号的低电平的时间宽度相异;或者,所述第一脉冲信号高电平的时间宽度与所述第三脉冲信号的高电平的时间宽度相异且所述第一脉冲信号低电平的时间宽度与所述第三脉冲信号的低电平的时间宽度相异。
  4. 根据权利要求3所述的电池保护组件,其特征在于,所述第一逻辑控制单元包括CTL信号采集单元、第二脉宽计时单元、第二脉冲计数单元、时钟产生单元、采样计时单元、船运控制单元,其中,CTL信号采集单元与所述第一电池保护电路接收船运进入信号的端子电连接,CTL信号采集单元还分别与第二脉宽计时单元、船运控制单元、时钟产生单元电连接,第二脉宽计时单元与第二脉冲计数单元电连接,时钟产生单元分别与采样计时单元、船运控制单元电连接,采样计时单元还与第二脉冲计数单元电连接,第二脉冲计数单元与船运控制单元电连接,所述第二脉冲计数单元在识别所述船运进入信号后输出信号给所述船运控制单元,所述船运控制单元延迟第八预设时间段控制所述第一电池保护电路进入船运模式,在第八预设时间段内所述船运控制单元输出船运反馈信号给所述系统电路。
  5. 根据权利要求1所述的电池保护组件,其特征在于,所述船运进入信号包括多个相同的脉冲信号,所述第一电池保护电路根据接收的脉冲信号高电平或/和低电平的时间宽度、脉冲信号的数量判定是否为船运进入信号;或者,
    所述第一逻辑控制单元包括船运控制单元,所述船运控制单元在收到与船运进入信号对应的信号时延迟第八预设时间段控制所述第一电池保护电路进入船运模式,在第八预设时间段内所述船运控制单元输出船运反馈信号给所述系统电路。
  6. 根据权利要求1-5任意一项所述的电池保护组件,其特征在于,所述船运反馈信号包括持续第九预设时间段的高电平信号,所述第九预设时间段小于第八预设时间段;或者,
    所述船运反馈信号包括在第九预设时间段内的预设数目的预设脉冲信号,所述第九预设时间段小于第八预设时间段。
  7. 根据权利要求6所述的电池保护组件,其特征在于,所述第九预设时间段与所述第八预设时间段的比值范围介于1/4-1之间。
  8. 根据权利要求1-5任意一项所述的电池保护组件,其特征在于,所述第一电池保护电路包括船运端,所述船运端与所述第一逻辑控制单元电连接,所述船运端用于接收所述船运进入信号,且所述船运端用于输出所述船运反馈信号。
  9. 根据权利要求1-5任意一项所述的电池保护组件,其特征在于,所述电池保护组件还包 括电容检测电路,所述电容检测电路包括电容检测单元,所述电容检测电路用于电连接检测电极,所述电容检测电路还与所述第一电池保护电路电连接,当所述电容检测单元检测到电容变化时所述电容检测模块发送船运进入信号给所述第一电池保护电路;或者,
    所述船运进入信号来自于充电仓。
  10. 根据权利要求1-5任意一项所述的电池保护组件,其特征在于,在船运模式所述第一电池保护电路处于0耗电模式;或者,
    在第八预设时间段内所述第一电池保护电路收到来自所述系统电路的关机成功信号。
  11. 根据权利要求1-5任意一项所述的电池保护组件,其特征在于,所述第一电池保护电路和所述第一开关单元位于同一个芯片上;或者,所述第一电池保护电路位于第一芯片上,所述第一开关单元位于所述第一芯片之外。
  12. 一种电子装置,其特征在于,包括第一电池、系统电路和如权利要求1-11任意一项所述的电池保护组件,其中,所述第一电源供电端和所述第一电源接地端对应与所述第一电池的正、负极电连接,所述第一开关单元控制第一电池供电给系统电路,在第八预设时间段内所述第一电池保护电路输出所述船运反馈信号给所述系统电路,所述船运反馈信号用于使所述系统电路关机。
  13. 根据权利要求12所述的电子装置,其特征在于,所述系统电路包括微控制单元,所述微控制单元接收所述船运反馈信号并控制所述系统电路关机。
  14. 一种电池保护组件的控制方法,其特征在于,包括:
    识别船运进入信号;
    延迟第八预设时间段进入船运模式且在第八预设时间段内输出船运反馈信号给系统电路以使所述系统电路关机。
  15. 一种无线耳机组件,其特征在于,包括无线耳机和充电仓,所述无线耳机可收纳入所述充电仓;
    其中,所述无线耳机包括第一电池、第一电池保护电路、系统电路、第一开关单元和多个第一触点,所述第一电池保护电路包括第一电源供电端、第一电源接地端、第一过放电压保护单元、第一放电过流保护单元、第一基准电压产生单元、第一逻辑控制单元,所述第一电源供电端和第一电源接地端对应与所述第一电池的正、负极电连接,所述第一逻辑控制单元与第一开关单元电连接以用于控制第一开关单元的开启或者关断,所述第一开关单元用于控制第一电池供电给系统电路,所述第一电池保护电路还与所述第一触点电连接;
    所述充电仓包括多个第二触点,所述第二触点与所述第一触点接触式电连接,所述充电仓输出船运进入信号,所述船运进入信号经由第二触点、第一触点输出给所述第一电池保护电路,所述第一电池保护电路进入船运模式,在船运模式所述第一开关单元关断以使第一电池停止向系统电路供电。
  16. 根据权利要求15所述的无线耳机组件,其特征在于,多个所述第一触点其中两个为第一供电触点和第一接地触点,多个所述第二触点其中两个为第二供电触点和第二接地触点,当所述无线耳机收纳入充电仓时所述第二供电触点与所述第一供电触点接触式电连接,所述第二接地触点与所述第一接地触点接触式电连接;
    所述第一电池保护电路包括船运端,所述船运端与所述第一供电触点电连接,所述船运端接收所述船运进入信号,所述第一电池保护电路进入船运模式。
  17. 根据权利要求15所述的无线耳机组件,其特征在于,所述第一触点的数目至少为3个,多个所述第一触点其中一个为第一通信触点,所述第二触点的数目与所述第一触点的数目对应,多个所述第二触点其中一个为第二通信触点,当所述无线耳机收纳入充电仓时所述第一通信触点与所述第二通信触点接触式电连接;
    所述第一电池保护电路包括船运端,所述船运端与所述第一通信触点电连接,所述船运端接收所述船运进入信号,所述第一电池保护电路进入船运模式。
  18. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,所述无线耳机传输 所述船运进入信号的第一触点还用于传输通信信号给所述系统电路;其中,所述通信信号包含第一脉冲信号,所述船运进入信号包含第三脉冲信号;其中,
    所述第一脉冲信号高电平的时间宽度与所述第三脉冲信号的高电平的时间宽度相异,或者,
    所述第一脉冲信号低电平的时间宽度与所述第三脉冲信号的低电平的时间宽度相异;或者,
    所述第一脉冲信号高电平的时间宽度与所述第三脉冲信号的高电平的时间宽度相异且所述第一脉冲信号低电平的时间宽度与所述第三脉冲信号的低电平的时间宽度相异。
  19. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,所述船运进入信号包括多个相同的脉冲信号,所述第一电池保护电路根据接收的脉冲信号高电平或/和低电平的时间宽度、脉冲信号的数量判定是否为船运进入信号。
  20. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,所述充电仓包括仓体和舱盖,所述舱盖盖在仓体上以形成容纳腔,所述无线耳机容纳在所述容纳腔中,在第一电池保护电路进入船运模式后且在充电仓舱盖打开时,所述充电仓给所述无线耳机充电以使所述无线耳机退出船运模式。
  21. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,在发出船运进入信号后的第四预设时间段,所述充电仓检测所述第一开关单元的第二端的电位是否改变;或者,
    所述第一电池保护电路在收到船运进入信号后延迟第八预设时间段进入船运模式,在第八预设时间段内第一电池保护电路发出船运反馈信号给充电仓;或者,
    当所述第一电池保护电路识别船运进入信号时所述第一电池保护电路延迟第八预设时间段,在第八预设时间段内所述第一电池保护电路输出船运反馈信号给所述系统电路以使所述系统电路关机,在经过第八预设时间段后所述第一电池保护电路进入船运模式。
  22. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,所述第一逻辑控制单元包括CTL信号采集单元、第二脉宽计时单元、第二脉冲计数单元、时钟产生单元、采样计时单元、船运控制单元,其中,CTL信号采集单元与船运端电连接,CTL信号采集单元还与第二脉宽计时单元、船运控制单元、时钟产生单元电连接,第二脉宽计时单元与第二脉冲计数单元电连接,时钟产生单元分别与采样计时单元、船运控制单元电连接,采样计时单元还与第二脉冲计数单元电连接,第二脉冲计数单元与船运控制单元电连接,船运控制单元与第一开关单元的控制端电连接,船运控制单元根据输入信号控制第一电池保护电路是否进入船运模式。
  23. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,在船运模式所述电池保护电路处于0耗电模式。
  24. 根据权利要求15-17所述的无线耳机组件,其特征在于,所述充电仓还输出复位信号,所述复位信号经由第二触点、第一触点输出给所述第一电池保护电路,所述第一逻辑控制单元控制所述第一开关单元关断以使第一电池停止向系统电路供电,所述第一开关单元关断第一预设时间段后第一逻辑控制单元控制第一开关单元开启以恢复所述第一电池向所述系统电路供电。
  25. 根据权利要求24所述的无线耳机组件,其特征在于,所述无线耳机通过同一个所述第一触点接收所述复位信号和所述船运进入信号;或者,
    当所述充电仓发送第一通信信号给所述系统电路且在第二预设时间段内未收到反馈信号时,所述充电仓产生并输出船运进入信号。
  26. 根据权利要求24所述的无线耳机组件,其特征在于,所述充电仓在输出所述复位信号后的第三预设时间段发送复位验证信号给所述系统电路以用于验证所述无线耳机是否复位,其中,所述第三预设时间段大于所述第一预设时间段。
  27. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,所述第一电池保护电路和所述第一开关单元位于同一个芯片上;或者,所述第一电池保护电路位于第一芯片上, 所述第一开关单元位于所述第一芯片之外。
  28. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,所述第一开关单元的第一端与所述第一电池的负极电连接,所述第一开关单元的第二端分别与所述系统电路的第二端、其中一个所述第一触点电连接,所第一电池保护电路还包括系统端,所述系统端与所述第一开关单元的第二端电连接,所述第一电池的正极与所述系统电路的第一端、另一个所述第一触点电连接;或者,
    所述第一电池保护电路包括系统端,所述第一开关单元的第一端与所述第一电源接地端电连接,所述第一开关单元的第二端与所述系统端电连接,所述系统端还与所述系统电路的第二端、其中一个所述第一触点电连接,所述第一电池的正极与所述系统电路的第一端、另一个所述第一触点电连接;或者,
    所述第一开关单元的第一端与所述第一电池的正极电连接,所述第一开关单元的第二端与所述系统电路的第一端、其中一个所述第一触点电连接,所第一电池保护电路还包括系统端,所述系统端与所述第一开关单元的第二端电连接,所述第一电池的负极与所述系统电路的第二端、另一个所述第一触点电连接;或者,
    所述第一电池保护电路包括系统端,所述第一开关单元的第一端与所述第一电源供电端电连接,所述第一开关单元的第二端与所述系统端电连接,所述系统端还与所述系统电路的第一端、其中一个所述第一触点电连接,所述第一电池的负极与所述系统电路的第二端、另一个所述第一触点电连接。
  29. 根据权利要求15-17任意一项所述的无线耳机组件,其特征在于,所述第二触点包含弹簧顶针,所述第一触点包含导电触片、导电引脚、导电柱、导电凸舌或者金手指。
PCT/CN2022/142670 2022-01-14 2022-12-28 一种电池保护组件、无线耳机组件、电子装置及控制方法 WO2023134448A1 (zh)

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