A wireless earphone assembly

Abstract

The present application provides a wireless headset assembly, including a wireless headset and a charging compartment, the wireless headset including a first battery, a first battery protection circuit, a system circuit, a first switch unit and a plurality of first contacts, a first logic control unit is electrically connected to the first switch unit for controlling the first switch unit to be turned on or off, the first switch unit is used to control the first battery to supply power to the system circuit, and the first battery protection circuit is also electrically connected to the first contact; the charging compartment includes a plurality of second contacts, the second contacts are electrically connected to the first contacts in a contact manner, the charging compartment outputs a reset signal, the reset signal is output to the first battery protection circuit via the second contacts and the first contacts, the first logic control unit controls the first switch unit to be 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 time period, the first logic control unit controls the first switch unit to be turned on to resume the first battery supplying power to the system circuit.

Description

Technical Field

[0001] The present application relates to the field of headphones, and in particular to a wireless headphone assembly. Background Art

[0002] When existing electronic devices, such as computers and wireless headphones, have system problems, such as blue screens, freezes, and other faults, users generally press and hold the power button to reset and restart the electronic device. When the electronic device restarts, the program is reloaded to eliminate the fault and restart.

[0003] For a circuit diagram of an existing electronic device for resetting and restarting, please refer to Figure 1 The electronic device includes a battery 910, a battery protection circuit 920, a system circuit 930, a second switch unit 950 and a reset IC chip 940. When the electronic device encounters a fault, the user triggers the system circuit 930 to generate a reset signal. After the reset IC chip 940 receives the reset signal, the reset IC chip 940 controls the second switch unit 950 to turn off, and the battery 910 stops supplying power to the system circuit 930. After a predetermined time, the reset IC chip 940 controls the second switch unit 950 to turn on to restore power to the system circuit 930, and the electronic device restarts.

[0004] However, the existing electronic device needs to install a separate reset IC chip 940 and a second switch unit 950 . The reset IC chip 940 itself has a high cost, which leads to a high cost of the electronic device itself. Summary of the invention

[0005] The technical problem to be solved by the embodiments of the present application is to provide a wireless headset component that can realize the reset and restart of the wireless headset at a low cost.

[0006] In order to solve the above technical problems, a first aspect of an embodiment of the present application provides a wireless headset assembly, including a wireless headset and a charging compartment, wherein the wireless headset can be stored in the charging compartment;

[0007] The wireless headset includes a first battery, a first battery protection circuit, a system circuit, a first switch unit and a plurality of first contacts, wherein the first battery protection circuit includes a first power supply terminal, a first power ground terminal, a first over-discharge voltage protection unit, a first discharge over-current protection unit, a first reference voltage generating unit, and a first logic control unit, wherein the first power supply terminal and the first power ground terminal are electrically connected to the positive and negative electrodes of the first battery respectively, the first logic control unit is electrically connected to the first switch unit to control the opening or closing of the first switch unit, the first switch unit is used to control the first battery to supply power to the system circuit, and the first battery protection circuit is also electrically connected to the first contact;

[0008] The charging compartment includes a plurality of second contacts, which are electrically connected to the first contacts in a contact-type manner. The charging compartment outputs a reset signal, which is output to the first battery protection circuit via the second contacts and the first contacts. The first logic control unit controls the first switch unit to turn off so that the first battery stops supplying power to the system circuit. After the first switch unit is turned off for a first preset time period, the first logic control unit controls the first switch unit to turn on so as to resume the first battery supplying power to the system circuit.

[0009] Optionally, two of the plurality of first contacts are first power supply contacts and first ground contacts, two of the plurality of second contacts are second power supply contacts and second ground contacts, and when the wireless headset is stored in the charging compartment, the second power supply contact is electrically connected to the first power supply contact, and the second ground contact is electrically connected to the first ground contact;

[0010] The first battery protection circuit includes a reset end, which is electrically connected to the first power supply contact and the first logic control unit respectively. The reset end receives the reset signal. The first logic control unit controls the first switch unit to turn off so that the first battery stops supplying power to the system circuit. After the first switch unit is turned off for a first preset time period, the first logic control unit controls the first switch unit to turn on to resume the first battery supplying power to the system circuit.

[0011] Optionally, the number of the first contacts is at least 3, one of the plurality of the first contacts is a first communication contact, the number of the second contacts corresponds to the number of the first contacts, one of the plurality of the second contacts is a second communication contact, and when the wireless headset is stored in the charging compartment, the first communication contact is electrically connected to the second communication contact;

[0012] The first battery protection circuit includes a reset end, which is electrically connected to the first communication contact and the first logic control unit respectively. The reset end receives the reset signal. The first logic control unit controls the first switch unit to turn off so that the first battery stops supplying power to the system circuit. After the first switch unit is turned off for a first preset time period, the first logic control unit controls the first switch unit to turn on to resume the first battery supplying power to the system circuit.

[0013] Optionally, the first contact of the wireless headset for transmitting the reset signal is also used to transmit a communication signal to the system circuit; wherein the communication signal includes a first pulse signal, and the reset signal includes a 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 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; 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 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.

[0014] Optionally, the reset signal includes a plurality of identical pulse signals, and the first battery protection circuit determines whether it is a reset signal according to the time width of a high level or / and a low level of the received pulse signal and the number of pulse signals.

[0015] Optionally, when the charging station sends a first communication signal to the system circuit and does not receive a feedback signal within a second preset time period, the charging station generates and outputs a reset signal.

[0016] Optionally, the charging case 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 headset is reset, wherein the third preset time period is greater than the first preset time period.

[0017] Optionally, the first logic control unit includes a CTL signal sampling unit, a first pulse width timing unit, a first pulse counting unit, a clock generating unit, a sampling timing unit, and a restart control unit, wherein the CTL signal sampling unit is electrically connected to the reset end, and the CTL signal sampling unit is also electrically connected to the first pulse width timing unit, the clock generating unit, and the restart control unit, respectively; the first pulse width timing unit is electrically connected to the first pulse counting unit, the clock generating unit is electrically connected to the sampling timing unit and the restart control unit, respectively; the sampling timing unit is electrically connected to the first pulse counting unit, the pulse counting unit is electrically connected to the restart control unit, the restart control unit is electrically connected to the control end of the first switch unit, and the restart control unit controls the first switch unit to turn on or off according to an input signal.

[0018] Optionally, the charging bin also outputs a shipping entry signal, which is output to the first battery protection circuit via the second contact and the first contact, and the first battery protection circuit enters a shipping mode. In the shipping mode, the first switch unit is turned off to stop the first battery from supplying power to the system circuit.

[0019] Optionally, the wireless headset receives the shipping entry signal and the reset signal through the same first contact; or,

[0020] The charging compartment comprises a compartment body and a hatch cover, wherein the hatch cover is covered on the compartment body to form a receiving cavity, wherein the wireless headset is received in the receiving cavity, and after the first battery protection circuit enters the shipping mode and when the charging compartment hatch cover is opened, the charging compartment charges the wireless headset to make the wireless headset exit the shipping mode; or

[0021] In the shipping mode, the first battery protection circuit is in a zero power consumption mode.

[0022] Optionally, in a fourth preset time period after the shipping entry signal is sent, the charging compartment detects whether the potential of the second end of the first switch unit changes; or,

[0023] 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,

[0024] When the first battery protection circuit recognizes the shipping entry signal, the first battery protection circuit delays for an eighth preset time period. During the eighth preset time period, the first battery protection circuit outputs a shipping feedback signal to the system circuit to shut down the system circuit. After the eighth preset time period, the first battery protection circuit enters the shipping mode.

[0025] Optionally, 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 a first chip, and the first switch unit is located outside the first chip.

[0026] Optionally, the first end of the first switch unit is electrically connected to the negative electrode of the first battery, the second end of the first switch unit is electrically connected to the second end of the system circuit and one of the first contacts respectively, 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 electrode of the first battery is electrically connected to the first end of the system circuit and another of the first contacts; or,

[0027] The first battery protection circuit includes a system end, a first end of the first switch unit is electrically connected to the first power ground end, a second end of the first switch unit is electrically connected to the system end, the system end is also electrically connected to the second end of the system circuit and one of the first contacts, and the positive electrode of the first battery is electrically connected to the first end of the system circuit and another of the first contacts; or

[0028] The first end of the first switch unit is electrically connected to the positive electrode of the first battery, 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 further includes a system end, the system end is electrically connected to the second end of the first switch unit, and the negative electrode of the first battery is electrically connected to the second end of the system circuit and another of the first contacts; or,

[0029] The first battery protection circuit includes a system end, a first end of the first switch unit is electrically connected to the first power supply end, a second end of the first switch unit is electrically connected to the system end, 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 electrically connected to the second end of the system circuit and another of the first contacts.

[0030] Optionally, the second contact includes a spring pin, and the first contact includes a conductive contact sheet, a conductive pin, a conductive column, a conductive tongue or a gold finger.

[0031] The embodiment of the present application sends a reset signal to the wireless headset through the charging compartment, and uses the first switch unit in the existing wireless headset to realize the reset and restart function of the system circuit. There is no need to separately add a reset IC chip and a second switch unit that matches the reset IC chip, thereby greatly reducing the cost and increasing the competitiveness of the wireless headset component. Moreover, since the present embodiment does not need to generate or output a reset signal through the system circuit, the charging compartment can directly send a reset signal to the first battery protection circuit through the second contact and the first contact, without the intervention of the system circuit, and can overcome the defect that the system circuit of the wireless headset is completely frozen and cannot generate or output a reset signal, and realize the reset and restart of the system circuit, so that the system circuit of the wireless headset returns to normal. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Description of the figure number:

[0034] 100-wireless headset; 110-first battery; 120-first battery protection circuit; 130-first switch unit; 140-system circuit; C1-first capacitor; R2-second resistor; GCD1-first power supply contact; DCD1-first grounding contact; TCD1-first communication contact; TCD2-second communication contact; VM-system terminal; CTL-switch control terminal; VDD1-first power supply terminal; GND1-first power grounding terminal; CTL-reset terminal; 200-charging compartment; 210-internal circuit of charging compartment; GCD2-second power supply contact; DCD2-second Two ground contacts; 121-CTL signal sampling unit; 1221-first pulse width timing unit; 1222-second pulse width timing unit; 1231-first pulse counting unit; 1232-second pulse counting unit; 124-clock generating unit; 125-sampling timing unit; 126-restart control unit; 127-shipping control unit; capacitance detection circuit-2200; 2210-detection electrode; C2-reference capacitor; VDD12-second power supply terminal; GND12-second power ground terminal; 131-system circuit; 132-atomizer; 133-air flow sensor;

[0035] Figure 1 It is a circuit module diagram for realizing reset and restart of an existing electronic device;

[0036] Figure 2a It is a circuit module diagram of a wireless headset assembly according to the first embodiment of the present application;

[0037] Figure 2b It is a circuit module diagram of another wireless headset assembly of the first embodiment of the present application;

[0038] Figure 2c is a circuit module diagram of yet another wireless headset assembly according to the first embodiment of the present application;

[0039] Figure 2d is a circuit module diagram of another wireless headset assembly according to the first embodiment of the present application;

[0040] Figure 3 This is a partial module diagram of a first logic control unit in the first embodiment of the present application;

[0041] Figure 4 It corresponds to Figure 3 Timing diagram of

[0042] Figure 5 This is a partial module diagram of a first logic control unit in another embodiment of the present application;

[0043] Figure 6 It corresponds to Figure 5 The timing diagram of the modules related to entering the shipping mode;

[0044] Figure 7 is a circuit module diagram of a wireless headset assembly according to the second embodiment of the present application;

[0045] Figure 8 is a circuit module diagram of an electronic device according to the third embodiment of the present application;

[0046] Fig. 9 yes Figure 8 A circuit module diagram of a capacitance detection circuit. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] The terms "including" and "having" and any variations thereof appearing in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units that are inherent to these processes, methods, products or devices. In addition, the terms "first", "second" and "third" are used to distinguish different objects, rather than to describe a specific order. The electrical connection of this application includes direct electrical connection and indirect electrical connection. Indirect electrical connection means that other electronic components, pins, etc. may exist between the two components of the electrical connection. The XX end mentioned in this application may be an actual terminal, or it may not be an actual terminal, for example, it is only one end of a component or one end of a wire. The three situations mentioned and / or included in this application, such as A and / or B, include the three situations of A, B, A and B.

[0049] First embodiment

[0050] See also Figure 2a The embodiment of the present application provides a wireless headset assembly, including a wireless headset 100 and a charging compartment 200. The wireless headset 100 can be stored in the charging compartment 200, or can be taken out of the charging compartment 200 for use. In this embodiment, the wireless headset 100 is, for example, a Bluetooth headset.

[0051] In this embodiment, the wireless headset 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. Among them, 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 supplies power to the first battery protection circuit 120, and the first battery protection circuit 120 plays a protective role, for example, when the first battery 110 is overcharged or over-discharged, it is protected. Since how the first battery protection circuit 120 protects the first battery 110 from overcharge and over-discharge is a common technical means in the field, it is not repeated here. In this embodiment, the system circuit 140 includes a microcontroller unit, a sound processing chip, a Bluetooth chip, etc. In this embodiment, a plurality of first contacts are used to realize contact electrical connection with the charging compartment 200, so that the charging compartment 200 can charge the wireless headset 100, communicate with the wireless headset 100, etc.

[0052] In this example, see Figure 2a 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. In addition, in other embodiments of the present application, 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 other circuits or electronic components may also be provided.

[0053] In this embodiment, the number of the first battery 110 is one or more. When there are multiple first batteries 110, multiple first batteries 110 can be connected in parallel, in series, or in a mixture of series and parallel. The first battery 110 is preferably a rechargeable battery such as a lithium battery, a nickel-cadmium battery, or a nickel-metal hydride battery. In this embodiment, since the wireless headset 100 itself is relatively small in size, the capacity of the first battery 110 is also relatively small. Generally, the capacity of the first battery 110 is 10mAH-80mAH, for example, 10mAH, 20mAH, 30mAH, 40mAH, 50mAH, 60mAH, 70mAH, 80mAH. The first battery 110 of this capacity is relatively small in size. Preferably, the capacity of the first battery 110 is 20mAH-40mAH. At this time, the first battery 110 is smaller in size and can be conveniently configured in a small wireless headset 100, which is convenient for miniaturization of the wireless headset 100, especially for miniaturization of Bluetooth headsets.

[0054] In this embodiment, the first battery protection circuit 120 includes a first power supply terminal VDD1, a first power ground terminal GND1, a first reference voltage generating unit, a first over-discharge voltage protection unit, a first discharge over-current protection unit, a first logic control unit, a first over-charge voltage protection unit, a first charge over-current protection unit, a system terminal VM, etc. The first power supply terminal VDD1 and the first power ground terminal GND1 are electrically connected to the positive and negative electrodes of the first battery 110, so that the first battery 110 can supply power to the first battery protection circuit 120. The system terminal VM is used to monitor the current flowing through the system circuit 140. Of course, the system terminal VM can also have other functions.

[0055] In the present application, the first reference voltage generating unit provides a reference voltage 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, a short circuit state, etc.

[0056] The first over-discharge voltage protection unit is used to protect the first battery 110 when it is detected 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. For example, the first battery 110 is controlled to be discharged only to the minimum extent, and generally the power supply to the system circuit 140 is stopped to prevent the first battery 110 from being permanently damaged due to excessive discharge of the first battery 110.

[0057] The first discharge overcurrent protection unit is used to protect the first battery 110 and the system circuit 140 when it is detected 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 the first battery 110 and the system circuit 140 from being permanently damaged or causing safety problems due to the excessive discharge current.

[0058] 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 control whether the first battery 110 is discharged externally and whether the first battery 110 is charged. The first logic control unit can control the entire first battery protection circuit 120 to be in zero power consumption mode, that is, the entire first logic control unit consumes almost no power.

[0059] The first overcharge voltage protection unit is used to protect the first battery 110 during the charging process of the first battery 110 when it is detected that the voltage of the first battery 110 is higher than the reference voltage provided by the reference voltage generating unit, thereby preventing the first battery 110 from continuing to charge after being fully charged, thereby preventing the first battery 110 from being damaged.

[0060] The first charging overcurrent detection unit is used to protect the first battery 110 when it is detected 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 the excessive charging current from causing permanent damage to the first battery 110 or causing safety problems.

[0061] In this embodiment, the connection modes between the first switch unit 130 and the first battery protection circuit 120 are generally as follows. Of course, those skilled in the art can also make simple modifications to the circuit described below as needed, which is also within the scope of this application.

[0062] 1. Please continue to see Figure 2a 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 end of the first switch unit 130 is electrically connected to the switch control terminal CO / DO, that is, the first switch unit 130 is located outside the first battery protection circuit 120 (the first switch unit 130 is external), the first end of the first switch unit 130 is electrically connected to the negative electrode of the first battery 110 (the first switch unit 130 is bottom-placed), the negative electrode of the first battery 110 is grounded, and the second end of the first switch unit 130 is electrically connected to the system circuit 140 and the system terminal VM respectively. In this embodiment, 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, 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 a normal working mode. When the first logic control unit controls the first switch unit 130 to turn off, the first battery 110 stops supplying power to the system circuit 140, and the system circuit 140 is in a 0 power consumption mode (without considering leakage current). In an embodiment of the present application, the first battery protection circuit 120 can be made on the first chip, that is, the first switch unit 130 is not on the first chip at this time. Of course, in other embodiments of the present application, the first battery protection circuit 120 may not be made on the first chip, and can be designed according to the needs of the user. In the present application, the 0 power consumption mode means that the power of the first battery 110 is not consumed in an ideal situation. In actual situations, there will be a certain amount of leakage current. The 0 power consumption mode does not mean that the power consumption is actually 0, but that the power consumption is close to 0.

[0063] 2. Please see Figure 2bThe first switch unit 130 is built into the first battery protection circuit 120 (the first switch unit 130 is built-in, and 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 end of the first switch unit 130 is electrically connected to the first logic control unit, the first end of the first switch unit 130 is electrically connected to the first power ground terminal GND1, the first power ground terminal GND1 is electrically connected to the negative electrode of the first battery 110 (the first switch unit 130 is placed downward), and the second end of the first switch unit 130 is electrically connected to the system end VM of the first battery protection circuit 120, and the system end VM is electrically connected to the system circuit 140. In this embodiment, the first logic control unit controls the first switch unit 130 to turn on or off, so that when the first logic control unit controls the first switch unit 130 to turn on, 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 a normal working mode. When the first logic control unit controls the first switch unit 130 to turn off, the first battery 110 stops supplying power to the system circuit 140, and the system circuit 140 is in a zero power consumption mode. In one embodiment of the present application, the first battery protection circuit 120 can be made on the chip, that is, at this time, the first switch unit 130 and the first battery protection circuit 120 are located on the same chip. Of course, in other embodiments of the present application, the first battery protection circuit 120 may not be made on the chip, and can be designed according to the needs of the user.

[0064] 3. Please see Figure 2cThe 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 end of the first switch unit 130 is electrically connected to the switch control terminal CO / DO, that is, the first switch unit 130 is located outside the first battery protection circuit 120 (the first switch unit 130 is external), the first end of the first switch unit 130 is electrically connected to the positive electrode of the first battery 110 (the first switch unit 130 is on top), and the second end of the first switch unit 130 is electrically connected to the system circuit 140 and the system terminal VM respectively. In this embodiment, 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, 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 a normal working mode. When the first logic control unit controls the first switch unit 130 to turn off, the first battery 110 stops supplying power to the system circuit 140, and the system circuit 140 is in a zero power consumption mode. In one embodiment of the present application, the first battery protection circuit 120 can be made on the first chip, that is, the first switch unit 130 is not on the first chip at this time. Of course, in other embodiments of the present application, the first battery protection circuit 120 may not be made on the chip, and can be designed according to the needs of the user.

[0065] 4. Please see Figure 2dThe first switch unit 130 is built in the first battery protection circuit 120 (the first switch unit 130 is built in, and at this time, the first switch unit 130 and the first battery protection circuit 120 are made on the same chip). At this time, the control end of the first switch unit 130 is electrically connected to the first logic control unit, the first end of the first switch unit 130 is electrically connected to the first power supply end VDD1, the first power supply end VDD1 is electrically connected to the positive electrode of the first battery 110 (the first switch unit 130 is placed at the bottom), and the second end of the first switch unit 130 is electrically connected to the system end VM, and the system end VM is electrically connected to the system circuit 140. In this embodiment, the first logic control unit controls the first switch unit 130 to turn on or off, so that when the first logic control unit controls the first switch unit 130 to turn on, 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 a normal working mode. When the first logic control unit controls the first switch unit 130 to turn off, the first battery 110 stops supplying power to the system circuit 140, and the system circuit 140 is in a zero power consumption mode (leakage current is not considered). In one embodiment of the present application, the first battery protection circuit 120 can be made on the chip, that is, at this time, the first switch unit 130 and the first battery protection circuit 120 are located on the same chip. Of course, in other embodiments of the present application, the first battery protection circuit 120 may not be made on the chip, and can be designed according to the needs of the user.

[0066] In the above four connection modes, the first switch unit 130 includes a charging switch and a discharging switch, wherein the charging switch and the discharging switch are MOS or other suitable field effect transistors, such as NMOS, PMOS, etc., and the charging switch and the discharging switch are electrically connected to the first logic control unit, for example, Figure 2a and Figure 2cIn the embodiment, the switch control terminal CO / DO of the first battery protection circuit 120 includes a charging switch control terminal and a discharging switch control terminal, the charging switch control terminal is electrically connected to the control terminal of the charging switch, the discharging switch control terminal is electrically connected to the control terminal of the discharging switch, and the charging switch control terminal and the discharging switch control terminal are electrically connected to the first logic control unit respectively, so as to realize the control of the charging switch and the discharging switch by the first logic control unit. When the first battery 110 needs to stop supplying power to the system circuit 140, the discharge circuit of the first battery 110 can be disconnected by turning off the discharge switch, and the charging switch can be turned on or off at this time. In addition, in other embodiments of the present application, the first switch unit 130 can also include a switch tube and a substrate control circuit, the switch tube is a MOS or other field effect tube, etc., the control terminal of the switch tube is electrically connected to the switch control terminal CO / DO, the substrate control circuit is electrically connected to the first logic control unit, and the substrate control circuit is used to realize the correct bias 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 is at different biases. However, the present application is not limited thereto. In other embodiments of the present application, the first switch unit 130 can also be other conventional implementation forms in the art.

[0067] Please continue to see Figure 2a-2d In this embodiment, the first battery protection circuit 120 is electrically connected to the first contact. Specifically, in this embodiment, the number of first contacts is two, namely the first power contact GCD1 and the first ground contact DCD1, wherein the first power contact GCD1 is electrically connected to the positive electrode of the first battery 110 via the charging management circuit, and the first ground contact DCD1 is electrically connected to the second end of the first switch unit 130. Thus, when the wireless headset 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 contact GCD1 and the first ground contact DCD1. Moreover, in this embodiment, the first power 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 contact GCD1.

[0068] In this embodiment, the charging case 200 includes multiple second contacts, the number of second contacts corresponds to the number of first contacts, and the second contacts include a second power supply contact GCD2 and a second ground contact DCD2. When the wireless headset 100 is placed in the charging case 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, thereby realizing the transmission and communication of power between the charging case 200 and the wireless headset 100.

[0069] In this embodiment, the first power supply contact GCD1 and the second power supply contact GCD2 realize contact-type electrical connection, and the first ground contact DCD1 and the second ground contact DCD2 realize contact-type electrical connection. In this embodiment, the first contact includes a conductive contact sheet, a conductive pin, a conductive column, a conductive tongue or a gold finger, and in this embodiment, the second contact includes a pogo pin, which can realize a better contact-type electrical connection between the first contact and the second contact.

[0070] When the wireless headset 100 crashes due to various reasons, the charging compartment 200 will output a reset signal, and the reset signal is output to the first battery protection circuit 120 via the second contact and the first contact without passing through the system circuit 140. After the first battery protection circuit 120 receives the reset signal, the first logic control unit of the first battery protection circuit 120 controls the first switch unit 130 to disconnect, and the disconnection here refers to the disconnection of the discharge switch, so that the discharge circuit of the first battery 110 is disconnected, and the system circuit 140 is stopped from being powered. Thereafter, after being disconnected for a first preset time period, the first logic control unit controls the first switch unit 130 to be turned on again to restore the first battery 110 to supply power to the system circuit 140. At this time, the system circuit 140 is powered again, and the system circuit 140 reloads data and programs, and the wireless headset 100 is reset and restarted normally. In this embodiment, the first preset time period can be set according to the needs of the user, for example, the range of the first preset time period is 10ms-5s, for example, 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. In this embodiment, the reset signal is sent to the wireless headset 100 through the charging compartment 200, and the reset and restart function of the system circuit 140 is realized by using the first switch unit 130 in the existing wireless headset 100, and there is no need to separately add a reset IC chip and a second switch unit matched with the reset IC chip, thereby greatly reducing the cost and increasing the competitiveness of the wireless headset component. Moreover, since the present embodiment does not require the system circuit 140 to generate or output a reset signal, the charging case 200 can directly send a reset signal to the first battery protection circuit 120 through the second contact and the first contact, without the intervention of the system circuit 140. This can overcome the defect that the system circuit 140 of the wireless headset 100 is completely frozen and unable to generate or output a reset signal, thereby resetting and restarting the system circuit 140 and restoring the system circuit 140 of the wireless headset 100 to normal.

[0071] In this embodiment, the first battery protection circuit 120 also includes a reset terminal CTL, which is used to achieve the reset and restart of the system circuit 140, and the reset terminal CTL is electrically connected to the first power supply contact GCD1. Therefore, when the charging compartment 200 sends a reset signal through the second power supply contact GCD2 and the first power supply contact GCD1, the reset terminal CTL will receive the reset signal, and the reset signal is a signal that the charging compartment 200 and the wireless headset 100 have agreed on. The first battery protection circuit 120 can recognize the reset signal according to the relevant protocol. When the first battery protection circuit 120 recognizes the reset signal, the first logic control unit of the first battery protection circuit 120 controls the first switch unit 130 to disconnect the first preset time period, and the first switch unit 130 is turned on again, and the first battery 110 resumes powering the system circuit 140, realizing the reset and restart of the system circuit 140, so that the wireless headset 100 can recover from the dead state, and the wireless headset 100 can be used normally.

[0072] In this embodiment, the system circuit 140 is also electrically connected to the first power supply contact GCD1 to realize the communication between the charging compartment 200 and the system circuit 140 after the wireless headset 100 is put back into the charging compartment 200. That is, in this embodiment, the first power supply contact GCD1 transmits both the reset signal and the communication signal with the system circuit 140, and both signals are pulse signals. In order to prevent false triggering, in this embodiment, the communication signal includes a first pulse signal, and the communication signal is distinguished by calculating the number of first pulse signals accumulated continuously or within a preset time period, wherein the first pulse signal is a pulse signal of one cycle, and the time width ratio of the high level and the low level of the first pulse signal is preset; the reset signal includes a second pulse signal, and the second pulse signal is a pulse signal of one cycle, and the time width ratio of the high level and the low level of the second pulse signal is preset, and the period of the second pulse signal may be the same as or different from the period of the first pulse signal.

[0073] In this embodiment, the time width of the high level of the first pulse signal (the first pulse width) is different from the time width of the high level of the second pulse signal (the second pulse width). For example, the first pulse width ranges from 1ms to 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., and the second pulse width ranges from 2.5sm to 4sm, such as 2.5ms, 2.6ms, 2.7ms, 2.8ms, etc. s, 2.9ms, 3ms, 3.1ms, 3.2ms, 3.3ms, 3.4ms, 3.5ms, 3.6ms, 3.7ms, 3.8ms, 3.9ms, 4ms, etc., this embodiment is described by taking the second pulse width of 3ms as an example, the time width of the low level of the first pulse signal is the same as or different from the time width of the low level of the second pulse signal, so that 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 high level of the pulse signal and the number of pulse signals, which can greatly avoid the false triggering of the reset signal or the communication signal. For example, the first battery protection circuit 120 is triggered by the rising edge and the falling edge, the first battery protection circuit 120 receives the high level signal of the second pulse width, and 5 or more second pulse signals are received continuously or cumulatively within a preset time period, and this embodiment is described by taking 16 second pulse signals constituting a reset signal as an example, then the first battery protection circuit 120 determines that the pulse signal is a reset signal, and this embodiment can greatly avoid false triggering by calculating both the high level pulse width and the number. In addition, in other embodiments of the present application, the time width of the low level of the first pulse signal (first pulse width) is different from the time width of the low level of the second pulse signal (second pulse width), and the time width of the high level of the first pulse signal is the same as or different from the time width of the high level of the second pulse signal. 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. In addition, in other embodiments of the present application, the time width of the high level of the first pulse signal (first high pulse width) is different from the time width of the high level of the second pulse signal (second high pulse width), and the time width of the low level of the first pulse signal (first low pulse width) is different from the time width of the low level of the second pulse signal (second low pulse width). At this time, the period of the second pulse signal is different from the period of the first pulse signal. 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 of the pulse signal, the width of the low level and the number of pulse signals. In this embodiment, the reset signal includes 16 consecutive second pulse signals or includes 16 accumulated second pulse signals.However, the present application is not limited thereto. In other embodiments of the present application, the reset signal may also include multiple second pulse signals and multiple first pulse signals, and those skilled in the art may set them according to actual requirements.

[0074] In this embodiment, the time width of the high level and / or low level of the first pulse signal (first pulse width) and the time width of the high level and / or low level of the second pulse signal (second pulse width) differ by more than 10%, that is, the time width of the high level and / or low level of the first pulse signal is at least 10% greater or less than the time width of the high level and / or low level of the second pulse signal. Generally, the error of the pulse time width during pulse generation can be controlled within 10%, so that even if the pulse generating device generates an error, the first battery protection circuit 120 will not misjudge the first pulse signal as the second pulse signal, or misjudge the second pulse signal as the first pulse signal. Preferably, the time width of the high level and / or low level of the first pulse signal is at least 20% greater or less than the time width of the high level and / or low level of the second pulse signal, so as to further prevent misjudgment.

[0075] See also Figure 3 In this embodiment, 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 first pulse counting unit 1231, a clock generating unit 124, a sampling timing unit 125, and a restart control unit 126, wherein the CTL signal sampling unit 121 is electrically connected to the reset end CTL, the CTL signal sampling unit 121 is electrically connected to the first pulse width timing unit 1221, the clock generating unit 124, and the restart control unit 126 respectively, the first pulse width timing unit 1221 is electrically connected to the first pulse counting unit 1231, the clock generating unit 124 is electrically connected to the sampling timing unit 125 and the restart control unit 126 respectively, the sampling timing unit 125 is electrically connected to the first pulse counting unit 1231, the first pulse counting unit 1231 is electrically connected to the restart control unit 126, and the output end Rset of the restart control unit 126 is used to be electrically connected to the control end of the first switch unit 130, and the restart control unit 126 controls the first switch unit 130 to be disconnected and turned on according to the input signal.

[0076] For more details, please refer to Figure 3 and Figure 4In this embodiment, the CTL signal sampling unit 121 is used to receive the pulse signal received by the reset terminal CTL. The CTL signal sampling unit 121 collects the pulse signal at the reset terminal CTL in real time or in time-sharing. The CTL signal sampling unit 121 controls the clock generating unit 124 to output the clock pulse to the sampling timing unit 125. The sampling timing unit 125 is used to time the CTL signal sampling unit 121. The CTL signal sampling unit 121 outputs the received pulse signal to the first pulse width timing unit 1221. The first pulse width timing unit 1221 is used to determine whether the duration of the high level of the pulse signal is consistent with the second pulse width. or within the error range, if yes, it is determined to be a second pulse signal, and the second pulse signal is transmitted to the first pulse counting unit 1231, the first pulse counting unit 1231 counts the number of second pulse signals plus 1, if no, it is not transmitted to the first pulse counting unit 1231; when the number of second pulse signals obtained by the first pulse counting unit 1231 is greater than or equal to the first number threshold value and the time counted by the sampling timing unit 125 is within the sixth preset time period, the first pulse counting unit 1231 outputs a first signal to the restart control unit 126, and the restart control unit 126 outputs a reset shutdown signal, and the reset shutdown The signal is used to control the first switch unit 130 to be disconnected and cut off, and at the same time, 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 zeroing signal to control the number of second pulse signals stored in the first pulse counting unit 1231 to be zeroed, and the restart control unit 126 performs timing according to the clock generated by the clock generating unit 124. After the first switch unit 130 is disconnected for a first preset time period, the restart control unit 126 outputs a restarting conduction signal, and the restarting conduction signal 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 the number of second pulse signals obtained by the first pulse counting unit 1231 within the sixth preset time period is less than the first number threshold, the first pulse counting unit 1231 outputs the second signal to the restart control unit 126, and the restart control unit 126 does not output a 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 zeroing signal for controlling the number of second pulse signals stored in the first pulse counting unit 1231 to be reset to zero and the sampling timing unit 125 to re-time, and the CTL signal sampling unit 121 performs a new round of pulse signal collection.In this embodiment, the sixth preset time period is, for example, 50-150 ms, such as 50sm, 60sm, 70sm, 75sm, 80sm, 90sm, 100sm, 110sm, 120sm, 125sm, 130sm, 140sm, 150sm, etc., and the first 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, 22, 24, 25, 28, 30, etc. In the sixth preset time period, 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 needs.

[0077] In this embodiment, the charging compartment 200 may trigger the sending of a reset signal in the following ways:

[0078] 1. After the wireless headset 100 is placed in the charging compartment 200, the charging compartment 200 sends a first communication signal to the system circuit 140 of the wireless headset 100 through the second contact and the first contact, or the charging compartment 200 sends the first communication signal to the system circuit 140 of the wireless headset 100 in a wireless manner. If the system circuit 140 is not dead, the system circuit 140 generally sends a feedback signal to the charging compartment 200 via the first contact, the second contact or a wireless manner. If the system circuit 140 is dead, the system circuit 140 will not send a feedback signal to the charging compartment 200 after receiving the first communication signal. When the charging compartment 200 does not receive a feedback signal within a second preset time period after sending the first communication signal, the charging compartment 200 considers 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 via the second contact and the first contact. Here, the length of the second preset time period can be set according to user needs, such as a time period of several milliseconds to several seconds.

[0079] 2. After the wireless headset 100 is placed in the charging compartment 200, a reset button is provided on the charging compartment 200. The reset button can be a single button or a button with multiple functions. After the user determines that the wireless headset 100 is frozen, the user presses the reset button on the charging compartment 200, presses the reset button for a certain length of time, presses the reset button for a certain number of times, presses multiple buttons at the same time, etc. to trigger the generation of a reset signal.

[0080] In order to determine whether the system circuit 140 is successfully reset and restarted, in the present embodiment, the charging compartment 200 sends a reset verification signal to the system circuit 140 in the third preset time period after outputting the reset signal to verify whether the system circuit 140 is reset, that is, whether it has recovered from the frozen state, and records the number of times the reset verification signal is sent as 1. If the charging compartment 200 receives a reply signal corresponding to the reset verification signal, the charging compartment 200 knows that the system circuit 140 has recovered to normal, and sets the number of times the reset verification signal is sent to 0. If the charging compartment 200 does not receive a reply signal corresponding to the reset verification signal within the preset time period, the charging compartment 200 automatically sends a reset signal to the wireless headset 100, and sends the reset verification signal again after the third preset time period, and records the number of times the reset verification signal is sent plus 1, that is, 2, ... When the number of recorded reset verification signals sent is greater than the first threshold, the charging compartment 200 stops automatically sending the reset signal, and the charging compartment 200 issues an alarm to tell the user that the system circuit 140 has not been successfully reset. In this embodiment, the first threshold is, for example, 3, 4, 5, 6, 7, 8, 9, 10, etc. In this embodiment, the third preset time period is greater than the first preset time period.

[0081] In addition, in order to reduce the power consumption of the wireless headset 100 during long-distance transportation, in this embodiment, the charging compartment 200 also outputs a shipping entry signal, which is output to the first battery protection circuit 120 via the second contact and the first contact, triggering the first battery protection circuit 120 to enter the shipping mode. In the shipping mode, the first switch unit 130 is disconnected to stop the first battery 110 from supplying power to the system circuit 140, that is, the discharge circuit of the first battery 110 is disconnected, and the discharge switch is disconnected at this time. In the shipping mode, the first battery protection circuit 120 is in a zero power consumption mode. The zero power consumption mode means that the power of the first battery 110 is not consumed in an ideal situation. In actual situations, there will be a certain amount of leakage current. The zero power consumption mode does not mean that the power consumption is actually 0, but means that the power consumption is close to 0. In this way, the energy consumption of the first battery 110 can be greatly reduced, and the power of the first battery 110 can be retained for a long time. Even if the wireless headset 100 is transported for a long time, the power of the first battery 110 will not be exhausted. Moreover, in this embodiment, the wireless headset 100 is sent a shipping entry signal through the charging compartment 200, rather than the system circuit 140 of the wireless headset 100 sending a shipping entry signal or the sending of the shipping entry signal is triggered by a button on the wireless headset 100, which can further reduce the size of the wireless headset 100. Even if there is a problem with the system circuit 140, such as a freeze, the first battery protection circuit 120 can successfully enter the shipping mode, thereby improving reliability. 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.

[0082] In this embodiment, the first battery protection circuit 120 receives the shipping entry signal through the reset terminal CTL, that is, the reset terminal CTL can be time-division multiplexed, so there is no need to set up a separate shipping terminal, which is conducive to reducing costs. Therefore, the charging compartment 200 outputs the shipping entry signal to the first battery protection circuit 120 through the second power supply contact GCD2, the first power supply contact GCD1, and the reset terminal CTL. In addition, in other embodiments of the present application, the first battery protection circuit 120 can be respectively provided with a reset terminal CTL and a shipping terminal, and the reset terminal CTL and the shipping terminal are respectively electrically connected to the first power supply contact GCD1.

[0083] In the present embodiment, the shipping entry signal includes a third pulse signal, and the third pulse signal is a pulse signal of one period. The time width ratio of the high level and the low level of the third pulse signal is preset, and the period of the third pulse signal can be the same as or different from the period of the first pulse signal and the second pulse signal. In the present embodiment, the time width of the high level of the third pulse signal (the third pulse width) is different from the time width of the high level of the first pulse signal (the first pulse width) and the time width of the high level of the second pulse signal (the second pulse width). For example, the third pulse width ranges from 4sm to 6.5ms, for example, 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, ms, 5.9ms, 6ms, 6.1ms, 6.2ms, 6.3ms, 6.4ms, 6.5ms, etc., this embodiment takes the third pulse width of 5ms as an example for explanation, the time width of the low level of the third pulse signal is the same as or different from the time width of the low level of the first pulse signal and the time width of the low level of the second pulse signal, so that the first battery protection circuit 120 can determine whether it is a normal communication signal or a shipping entry signal by detecting the time width of the high level of the pulse signal and the number of pulse signals, which can greatly avoid the false triggering of the shipping entry signal or the communication signal. For example, the first battery protection circuit 120 is triggered by the rising edge and the falling edge, the first battery protection circuit 120 receives the high level signal of the third pulse width, and 5 or more third pulse signals are received continuously or cumulatively within a preset time period, this embodiment takes 24 third pulse signals as an example to constitute a shipping entry signal, then the first battery protection circuit 120 determines that the pulse signal is a shipping entry signal, and this embodiment can greatly avoid false triggering by calculating both the high level pulse width and the number. In addition, in other embodiments of the present application, the time width of the low level of the third pulse signal (third pulse width) is different from the time width of the low level of the first pulse signal (first pulse width) and the time width of the low level of the second pulse signal (second pulse width), and the time width of the high level of the third pulse signal is the same as or different from the time width of the high level of the first pulse signal and the time width of the high level of the second pulse signal. The first battery protection circuit 120 can determine whether it is a normal communication signal or a shipping entry signal by detecting the time width of the low level of the pulse signal and the number of pulse signals.In addition, in other embodiments of the present application, the time width of the high level of the third pulse signal (third high pulse width) is different from the time width of the high level of the first pulse signal (first high pulse width) and the time width of the high level of the second pulse signal (second high pulse width), and the time width of the low level of the third pulse signal (third low pulse width) is also different from the time width of the low level of the first pulse signal (first low pulse width) and the time width of the low level of the second pulse signal (second low pulse width). At this time, the period of the third pulse signal is different from the period of the first pulse signal and the period of the second pulse signal. The first battery protection circuit 120 determines whether it is a normal communication signal or a shipping entry 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. In this embodiment, the shipping entry signal includes 24 consecutive third pulse signals or includes accumulated 24 third pulse signals. In addition, in other embodiments of the present application, the difference between the shipping entry signal and the reset signal is the number of second pulse signals. For example, the reset signal includes 16 second pulse signals, and the shipping entry signal includes 24 second pulse signals, or vice versa. In this way, the shipping entry signal and the reset signal are not easily confused with ordinary communication signals, and the reset signal and the shipping entry signal are not easily confused either, which can reduce the number of pulse generating devices or reduce the complexity of the pulse generating devices.

[0084] In this embodiment, the time width of the high level and / or low level of the third pulse signal (the third pulse width) differs from the time width of the high level and / or low level of the first pulse signal (the first pulse width) and the time width of the high level and / or low level of the second pulse signal (the second pulse width) by more than 10%. Generally, the error of the pulse width during pulse generation can be controlled within 10%. In this way, even if the pulse generating device generates an error, the first battery protection circuit 120 will not misjudge the first pulse signal as the second pulse signal or the third pulse signal, or vice versa. Preferably, the time width of the high level and / or low level of the third pulse signal is at least 20% greater or less than the time width of the high level and / or low level of the first pulse signal and the time width of the high level and / or low level of the second pulse signal, so as to further prevent misjudgment.

[0085] See also Figure 5In the present embodiment, 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 1231, a second pulse counting unit 1232, a clock generating unit 124, a sampling timing unit 125, a restart control unit 126, and a shipping control unit 127, wherein the connection relationship among the first pulse width timing unit 1221, the first pulse counting unit 1231, and the restart control unit 126 has been described above and will not be repeated here. In this embodiment, the CTL signal sampling unit 121 is also electrically connected to the second pulse width timing unit 1222 and the first output end SM of the shipping control unit 127, the second pulse width timing unit 1222 is electrically connected to the second pulse counting unit 1232, the clock generating unit 124 is also electrically connected to the shipping control unit 127, the sampling timing unit 125 is also electrically connected to the second pulse counting unit 1232, the second pulse counting unit 1232 is electrically connected to the shipping control unit 127, the second output end SN of the shipping control unit 127 is used to be electrically connected to the control end of the first switch unit 130, and the shipping control unit 127 controls whether the first battery protection circuit 120 enters the shipping mode according to the input signal.

[0086] For more details, please refer to Figure 5 and Figure 6In this embodiment, the CTL signal sampling unit 121 is used to receive the pulse signal received by the reset terminal CTL. The CTL signal sampling unit 121 collects the signal at the reset terminal CTL in real time or in time-sharing. The CTL signal sampling unit 121 controls the clock generating unit 124 to output the clock pulse to the sampling timing unit 125. The sampling timing unit 125 is used to time the CTL signal sampling unit 121. The CTL signal sampling unit 121 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 to be a third pulse signal, and the third pulse signal is transmitted to the second pulse counting unit 1232. The second pulse counting unit 1232 counts the number of the third pulse signal plus 1. If not, it is not transmitted to the second pulse counting unit 1232. When the second pulse If the number of the third pulse signals obtained by the counting unit 1232 is greater than or equal to the second number threshold and the timing time of the sampling timing unit 125 is within the seventh preset time period, the second pulse counting unit 1232 outputs the third signal to the shipping control unit 127. At this time, the shipping control unit 127 outputs a reset signal to the CTL signal sampling unit 121. The CTL signal sampling unit 121 outputs a zeroing signal for controlling the number of the third pulse signals stored in the second pulse counting unit 1232 to be reset to zero and controlling the sampling timing unit to re-time. Moreover, the CTL signal sampling unit 121 is forced to be pulled high to a high level. At the same time, the shipping control unit 127 performs timing through the clock generating unit 124, and the duration of the high timing is greater than or equal to the ninth preset time period. When the shipping control unit 127 times the eighth preset time period, the shipping control unit 127 outputs a shipping control signal for causing the first battery protection circuit 120 to enter the shipping mode. If the number of third pulse signals obtained by the second pulse counting unit 1232 within the seventh preset time period is less than the second number threshold, the second pulse counting unit 1232 outputs a fourth signal to the shipping control unit 127, and the shipping control unit 127 does not output a 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 zeroing signal for controlling the number of third pulse signals stored in the second pulse counting unit 1232 to be reset to zero and controlling the sampling timing unit to re-time, and the CTL signal sampling unit 121 starts a new round of pulse signal sampling.In this embodiment, the seventh preset time period is, for example, 100-300 ms, 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., and 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, 50, etc. In the seventh preset time period, the pulse counting unit counts the number of consecutive third pulse signals or the accumulated number of second pulse signals.

[0087] In this embodiment, when the first battery protection circuit 120 is in the shipping mode, the first end of the first switch unit 130 is electrically connected to the negative electrode of the battery (the first switch unit is placed down). At this time, the system end VM is pulled up to a high level, and the charging compartment 200 does not charge the wireless headset 100, preventing the charging compartment 200 from charging the first battery 110, causing the voltage of the system end VM of the first battery protection circuit 120 to be pulled down, causing the first battery protection circuit 120 to exit the shipping mode. At this time, the second ground contact DCD2 is, for example, set to be suspended or the charging compartment 200 makes the second ground contact DCD2 a high level. In addition, when the first end of the first switch unit 130 is electrically connected to the positive pole of the battery (the first switch unit is placed on top), when the first battery protection circuit 120 is in the shipping mode, the system end VM is pulled down to a low level, and the charging compartment 200 does not charge the wireless headset 100, preventing the charging compartment 200 from charging the first battery 110, causing the potential of the system end VM of the first battery protection circuit 120 to be pulled up, causing the first battery protection circuit 120 to exit the shipping mode. At this time, the second ground contact DCD2 is, for example, set to be suspended or the charging compartment 200 makes the second ground contact DCD2 a low level.

[0088] In the present embodiment, within the fourth preset time period after the charging compartment 200 sends the shipping entry signal, the charging compartment 200 will detect whether the first battery protection circuit 120 receives the shipping entry signal. Specifically, the shipping control unit 127 delays the eighth preset time period after receiving the shipping entry signal to output the shipping control signal, and the shipping control signal is used to make the first battery protection circuit 120 enter the shipping mode. In the eighth preset time period, the first battery protection circuit 120 sends a shipping feedback signal to the charging compartment 200, and the charging compartment 200 determines whether the first battery protection circuit 120 successfully receives the shipping entry signal by detecting whether the shipping feedback signal is obtained. In the present embodiment, the shipping feedback signal is output to the charging compartment 200 via the reset terminal CTL, the first power supply contact GCD1, and the second power supply contact GCD2. In the present embodiment, the shipping feedback signal includes a high-level signal that lasts for the ninth preset time period. The shipping feedback signal is a signal negotiated between the first battery protection circuit 120, the system circuit 140, and the charging compartment 200. The length of the ninth preset time period is less than the length of the eighth preset time period. For example, the ratio of the ninth time period to the eighth time period is between 1 / 4 and 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. In addition, in other embodiments of the present application, the shipping feedback signal may also be other signals that are easily implemented by those skilled in the art, such as a preset number of preset pulse signals within the ninth preset time.

[0089] In this embodiment, the charging compartment 200 detects whether the signal of the reset terminal CTL is pulled high to a high level via the second power supply contact GCD2 and the first power supply contact GCD1. If the charging compartment 200 detects that the signal of the reset terminal CTL is pulled high to a high level for a time greater than or equal to the ninth preset time period within the fourth preset time period, the charging compartment 200 knows that the first battery protection circuit 120 has received the shipping entry signal and will enter the shipping mode thereafter. If the charging compartment 200 does not detect that the signal of the reset terminal CTL is pulled high to a high level for a time greater than or equal to the ninth preset time period within the fourth preset time period, the charging compartment 200 knows that the first battery protection circuit 120 has not received the shipping entry signal, and the charging compartment 200 sends a prompt signal to prompt the manufacturer or transporter that the wireless headset 100 has not successfully received the shipping entry signal and will not successfully enter the shipping mode thereafter. In this embodiment, the duration of the fourth preset time period is greater than the duration of the eighth preset time period. In addition, in other embodiments of the present application, 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. In addition, in other embodiments of the present application, the shipping feedback signal can also be output to the charging compartment 200 and the system circuit 140 via other terminals.

[0090] In this embodiment, when the first battery protection circuit 120 identifies the shipping entry signal, the first battery protection circuit 120 delays the eighth preset time period. During the eighth preset time period, the first battery protection circuit 120 outputs the shipping feedback signal to the system circuit 140. The system circuit 140 includes a microcontroller unit. After receiving and identifying the shipping feedback signal, the microcontroller unit controls the system circuit 140 to shut down in order. The system circuit 140 can be shut down quickly. After the system circuit 140 identifies the shipping feedback signal, the shutdown time is millisecond level or microsecond level. After the eighth preset time period, the first battery protection circuit 120 enters the shipping mode. In this embodiment, the first battery protection circuit 120 shuts down the system circuit 140 before entering the shipping mode to prevent the system circuit 140 from being hard-powered 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 before entering the shipping mode can protect the safety of the software and hardware of the system circuit 140.

[0091] In this embodiment, the shipping feedback signal is output to the system circuit 140 via the reset terminal CTL, that is, the reset terminal CTL is an input-output terminal. In this embodiment, when the first battery protection circuit 120 identifies the shipping entry signal, the first battery protection circuit 120 outputs the shipping feedback signal. However, the present application is not limited thereto. In other embodiments of the present application, after the first battery protection circuit 120 identifies the shipping entry signal, the first battery protection circuit 120 may also delay for a period of time before outputting the shipping feedback signal, as long as the system circuit 140 can complete the shutdown within the eighth preset time period.

[0092] In this embodiment, after the first battery protection circuit 120 receives the shipping entry signal, the first logic control unit will identify it. When the second pulse counting unit 1232 of the first logic control unit identifies it as the shipping entry signal, the second pulse counting unit 1232 outputs a signal to the shipping control unit 127, and 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 mode. In addition, in other embodiments of the present application, 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 reset terminal CTL to tell the first battery protection circuit 120 that the system circuit 140 has completed the shutdown, and then the shipping control unit 127 outputs the shipping control signal after the eighth preset time period to control the first battery protection circuit 120 to enter the shipping mode. In addition, in other embodiments of the present application, when the first battery protection circuit 120 receives the shutdown success signal, the shipping control unit 127 can immediately output the shipping control signal without waiting for the eighth preset time period to arrive, which can save time.

[0093] In this embodiment, the charging compartment 200 communicates with the host computer via wired or wireless communication, and the host computer triggers the charging compartment 200 to generate and output a shipping entry signal. The host computer is generally a central controller at the factory end, and the central controller can trigger all charging compartments 200 in a certain area to generate and output a shipping entry signal. In this embodiment, by setting the shipping entry signal generating device in the charging compartment 200 instead of in the wireless headset 100, the volume of the wireless headset 100 can be further reduced, which is conducive to the miniaturization of the wireless headset 100.

[0094] In this embodiment, the charging case 200 includes a case body and a case cover, one end of the case cover is hinged to one end of the case body, the case cover covers the case body to form a receiving cavity, the container is used to receive the wireless headset 100, and the case cover can be opened or closed. After the charging compartment 200 knows that the wireless headset 100 has entered the shipping mode, when the user opens the lid of the charging compartment 200 and the charging compartment 200 detects a lid opening signal, for example, through the cooperation of a magnet and a Hall sensor, it detects that the user has opened the lid of the charging compartment 200, for example, the magnet is located on the lid, and the Hall sensor is located on the compartment body connected to the lid, or vice versa, the charging compartment 200 starts to charge the wireless headset 100 via the second contact and the first contact, thereby lowering the potential of the system end VM of the first battery protection circuit 120, so that the first battery protection circuit 120 exits the shipping mode, and the first battery protection circuit 120 resumes normal operation, controls the first switch unit 130 to turn on, and the first battery 110 resumes powering the system circuit 140. When the user takes out the wireless headset 100 from the charging compartment 200, the wireless headset 100 can operate normally.

[0095] In this embodiment, the wireless headset 100 also includes a charging management circuit, one end of the charging management circuit is electrically connected to the positive electrode of the first battery 110 (the first switch unit is located at the bottom) or the second end of the first switch unit 130 (the first switch unit is located at the top), 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 charging current that conforms to the charging curve of the first battery 110.

[0096] In this embodiment, 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. However, 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.

[0097] In addition, in other embodiments of the present application, the first battery protection circuit 120 may have only a reset and restart function, or only a function of entering the shipping mode. In addition, in other embodiments of the present application, the battery protection component composed of the first battery protection circuit 120 and the first switch unit 130 is not limited to wireless headphones, but can also be used in other electronic devices, such as electronic cigarettes, etc. The first battery protection circuit 120 can determine whether it is a normal communication signal, a reset signal, or a shipping entry signal by detecting the high level time width and / or low level time width of the pulse signal and the number of pulse signals.

[0098] In this embodiment, the charging compartment 200 further includes a charging compartment internal circuit 210, which is electrically connected to the second contact point. The charging compartment internal circuit 210 includes a second battery, a second battery protection circuit, a third switch unit, a switching circuit, and the like. In this embodiment, the capacity of the second battery is greater than that 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, 20 times, 30 times, 40 times, 50 times, etc., of the capacity of the first battery 110, and the second battery is used to charge the first battery 110 when the wireless headset 100 is accommodated in the charging compartment 200; the second battery protection circuit includes a second power supply terminal, a second power ground terminal, a second over-discharge voltage protection unit, a second discharge over-current protection unit, a second reference voltage generating unit, and a second logic control unit, the second power supply terminal and the second power ground terminal are electrically connected to the positive and negative poles of the second battery respectively, 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 is electrically connected to the second contact, and the switching circuit is used to switch to the charging compartment 200 to charge the wireless headset 100, or switch to the charging compartment 200 to communicate with the wireless headset 100. The configuration of the internal circuit 210 of the charging case is common knowledge in the art and will not be elaborated here.

[0099] In addition, the embodiment of the present application also provides a control method of a battery protection component, comprising the following steps:

[0100] The battery protection component recognizes the ship entry signal;

[0101] The battery protection component delays the eighth preset time period to enter the shipping mode and outputs a shipping feedback signal to the system circuit 140 during the eighth preset time period to shut down the system circuit 140 .

[0102] The method of this embodiment can be referred to the above related description, which will not be repeated here.

[0103] Second embodiment

[0104] See also Figure 7 , Figure 7 This is a circuit module diagram of the wireless headset component 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. The main difference between this embodiment and the first embodiment is the number of first contacts and second contacts.

[0105] In this embodiment, the number of first contacts is three, namely the first power supply contact GCD1, the first ground contact DCD1 and the first communication contact TCD1, and the number of second contacts corresponds to the number of first contacts, namely the second power supply contact GCD2, the second ground contact DCD2 and the second communication contact TCD2. When the wireless headset 100 is received in the charging compartment 200, 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, and the first communication contact TCD1 is electrically connected to the second communication contact TCD2. In addition, in other embodiments of the present application, the number of first contacts can be more, and the number of second contacts can be more.

[0106] In this embodiment, 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 headset 100, and the first communication contact TCD1 and the second communication contact TCD2 are mainly used for the communication between the charging compartment 200 and the wireless headset 100. In this embodiment, the first power supply contact GCD1 is electrically connected to the positive electrode of the first battery 110 via the charging management circuit, the first ground contact DCD1 is electrically connected to the second end of the first switch unit 130, and the first communication contact TCD1 is electrically connected to the reset end CTL of the system circuit 140 and the first battery protection circuit 120, respectively.

[0107] In this embodiment, in addition to receiving and sending communication signals between the charging compartment 200 and the system circuit 140, the first communication contact TCD1 and the second communication contact TCD2 are used to receive a reset signal output by the charging compartment 200 via the second communication contact TCD2. After the reset terminal CTL of the first battery protection circuit 120 receives the reset signal, the first logic control unit of the first battery protection circuit 120 controls the first switch unit 130 to disconnect so that the first battery 110 stops supplying power to the system circuit 140, specifically, the discharge circuit of the first battery 110 is disconnected. After the first switch unit 130 is disconnected for a first preset time period, the first logic control unit controls the first switch unit 130 to open to restore the first battery 110 to supply power to the system circuit 140, so that the system circuit 140 is reset and restarted, and the system circuit 140 returns to normal from a dead state. In addition, in this embodiment, the first communication contact TCD1 is also used to receive a shipping entry signal.

[0108] Third embodiment

[0109] See also Figure 8 , Figure 8 This is a circuit module diagram of the electronic device of the third embodiment of the present application. The battery protection component of this embodiment is similar to that of the first embodiment, so the parts not described in this embodiment can refer to the first embodiment. The main difference between this embodiment and the first embodiment is that the battery protection component also includes a capacitor detection circuit 2200.

[0110] See also Figure 8 , this embodiment provides an electronic device, and the electronic device is, for example, an electronic cigarette. This embodiment is described by taking the electronic device being an electronic cigarette as an example. However, the present application is not limited thereto. In other embodiments of the present application, the electronic device is, for example, the wireless headset assembly of the first embodiment. In this embodiment, the electronic cigarette may be a conventional electronic cigarette or a disposable electronic cigarette. The electronic cigarette includes a cigarette rod and a cigarette cartridge, and the cigarette cartridge is connected to the cigarette rod. In one embodiment of the present application, the cigarette cartridge may be a replaceable cigarette cartridge, that is, the cigarette cartridge can be removed from the cigarette rod and replaced with a new cigarette cartridge, the cigarette rod can be reused, and the cigarette rod will be equipped with a charging interface for charging the first battery 110. In another embodiment of the present application, the cigarette cartridge may also be a non-replaceable cigarette cartridge, that is, the cigarette cartridge cannot be removed from the cigarette rod for replacement, and at this time, the cigarette rod will not be equipped with a charging interface for charging the first battery 110.

[0111] In the present application, the cigarette rod includes a hollow cigarette rod shell, a first battery 110, a battery protection assembly, a system circuit 140 and an airflow sensor 133. Among them, the first battery 110, the battery protection assembly, the system circuit 140 and the airflow sensor 133 are located in the cigarette rod shell; the battery protection assembly includes a first battery protection circuit 120 and a first switch unit 130. The connection relationship between the first battery protection circuit 120, the first switch unit 130, the first battery 110 and the system circuit 140 can be seen in the first embodiment, which will not be 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, etc. The system circuit 140 is electrically connected to the airflow sensor 133 and the atomizer 132 in the cigarette cartridge, respectively.

[0112] The main difference between this embodiment and the first embodiment is that the shipping entry signal is not generated and sent by the charging compartment. Figure 4 , Figure 5 and Figure 8In this embodiment, the first battery protection circuit 120 further includes a capacitance detection circuit 2200, which is used to electrically connect the detection electrode 2210. The capacitance detection circuit 2200 is also electrically connected to the first battery protection circuit 120. When the capacitance detection circuit 2200 detects a capacitance change, the capacitance detection circuit 2200 sends a shipping entry signal to the reset terminal CTL of the first battery protection circuit 120. The reset terminal CTL transmits the shipping entry signal to the CTL signal sampling unit 121. Thereafter, the shipping control unit 127 recognizes the shipping entry signal. The shipping control unit 127 recognizes the shipping entry signal. After the shipping entry signal, the shipping control signal is outputted after the eighth preset time period. During the eighth preset time period, the first battery protection circuit 120 outputs the shipping feedback signal and outputs it to the system circuit 140 and the capacitance detection circuit 2200 through the reset terminal CTL. After the microcontroller unit of the system circuit 140 receives and identifies the shipping feedback signal, the microcontroller unit controls the system circuit 140 to shut down in order. The system circuit 140 can shut down quickly. After the system circuit 140 identifies the shipping feedback signal, the shutdown time is millisecond level or microsecond level. After the eighth preset time period, the first battery protection circuit 120 enters the shipping mode. In this embodiment, the first battery protection circuit 120 shuts down the system circuit 140 before entering the shipping mode to prevent the system circuit 140 from being hard-powered 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 before entering the shipping mode can protect the safety of the software and hardware of the system circuit 140.

[0113] In this embodiment, the capacitance detection circuit 2200 includes a capacitance detection unit 2220, a second power supply terminal VDD2, and a second power ground terminal GND2. Fig. 9 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 stabilization circuit, a timing control circuit, an output mode and a driving circuit, etc. Since the capacitance detection principle of the capacitance detection unit 2220 is a conventional technology in the art, it will not be described here. In addition, Fig. 9 It is only an example of an implementation of the capacitance detection unit 2220. In other embodiments of the present application, the capacitance detection unit 2220 may have other implementations, may include other units, or may not include some of the above units. This can be obtained by a technician in this field through simple deformation, which is also within the scope of the present application. In this embodiment, the capacitance detection unit 2220 is electrically connected to the second power supply terminal VDD2 and the second power ground terminal GND2. The second power supply terminal VDD2 and the second power ground terminal GND2 are electrically connected to the positive and negative electrodes of the first battery 110, so that the first battery 110 can supply power to the capacitance detection unit 2220 to enable the capacitance detection unit 2220 to work.

[0114] Please continue to see Figure 8 In this embodiment, the capacitance detection circuit 2200 also 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, and 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 a part of the user's body contacts the surface of the electronic cigarette, such as whether the user's lips contact the surface of the mouthpiece, whether the user's palm contacts the surface of the cigarette rod, etc. In this embodiment, the number of detection electrodes 2210 is one or more, and the detection electrode 2210 is electrically connected to the capacitance detection terminal CJ. In this embodiment, the detection electrode 2210 is located in the mouthpiece of the cigarette cartridge, for example, embedded in the mouthpiece, that is, the detection electrode 2210 is not exposed. Of course, in other embodiments of the present application, the detection electrode 2210 can also be located in other parts of the electronic cigarette, such as the cigarette rod.

[0115] In this embodiment, the battery protection component also includes at least one reference capacitor C2, which is located in the cigarette rod. The reference capacitor C2 is connected in parallel with the detection electrode 2210 and is electrically connected to the capacitance detection terminal CJ. When the user does not use the electronic cigarette, there is a reference capacitor C2 between the capacitance detection terminal CJ ​​and the ground. When the user uses the electronic cigarette, the user's lips touch the mouthpiece, and a contact capacitor connected in parallel with the reference capacitor C2 is generated between the detection electrode 2210, the lips, and the ground. At this time, the total capacitance is the sum of the reference capacitor C2 and the contact capacitance, so the total capacitance increases. At this time, the RC time constant of the oscillation circuit in the capacitance detection unit 2220 increases accordingly. According to the principle of the RC oscillator, the RC time constant increases, the charge and discharge cycle becomes longer, and the oscillator frequency becomes smaller accordingly. Therefore, by detecting the change in the capacitance charge and discharge cycle or frequency, it is possible to detect whether the lips are in contact with the mouthpiece. In addition, in other embodiments of the present application, the capacitance detection unit 2220 can also realize capacitance change detection by other methods, such as conventional methods such as capacitance voltage division method and charging time measurement method. In addition, in other embodiments of the present application, the detection electrode 2210 may not be located at the mouthpiece of the cigarette cartridge, but may be located on the cigarette rod. In addition, in other embodiments of the present application, the cigarette rod may not be provided with a reference capacitor C2. In addition, in other embodiments of the present application, when the user's lips touch the mouthpiece, the total capacitance is not limited to increasing, but may also decrease.

[0116] Please continue to see Figure 8In the present embodiment, the capacitance detection circuit 2200 is also electrically connected to the first battery protection circuit 120. When the capacitance detection circuit 2200 detects a capacitance change, the capacitance detection circuit 2200 generates a shipping entry signal or a shipping exit signal and outputs it to the first battery protection circuit 120 through the reset terminal CTL. Thereafter, the first battery protection circuit 120 actively enters or exits the shipping mode, wherein the first battery protection circuit 120 will enter the shipping mode only after the system circuit 140 is shut down. In the shipping mode, the first switch unit 130 is disconnected to stop the first battery 110 from supplying power to the system circuit 140, so that the system circuit 140, the atomizer 132, the airflow sensor 133, etc. will not consume power under ideal conditions. At this time, the system circuit 140, the atomizer 132, the airflow sensor 133 and other circuits are in a 0 power consumption mode, and the power consumption of the system circuit 140, the atomizer 132, the airflow sensor 133, the charging management circuit and other circuits is close to 0.

[0117] In this embodiment, the capacitance change refers to the capacitance being greater than the second threshold or the capacitance being less than the second threshold. Here, the capacitance being greater than or less than the second threshold includes the total capacitance itself being greater than or less than the second threshold, and also includes the charging and discharging cycle, frequency, etc. being greater than or less than the second threshold due to the change in capacitance, which is also within the scope of the capacitance change. In this embodiment, the second threshold can be preset according to user needs. In this embodiment, if the second threshold is capacitance, the second threshold is selected to be greater than the reference capacitance C2 and less than the sum of the reference capacitance C2 and the contact capacitance.

[0118] Generally speaking, when the user's lips touch the mouthpiece of an electronic cigarette or a traditional cigarette, there will be a time difference of several tens of milliseconds before the user finally smokes. This embodiment makes full use of this time difference to change the electronic cigarette from the shipping mode to the normal working mode, that is, to exit the shipping mode. Specifically, in this embodiment, when the user's lips touch the mouthpiece, the capacitance detection unit 2220 will detect an increase in the total capacitance, for example, through frequency, charge and discharge cycles, etc. At this time, the capacitance detection unit 2220 sends a shipping exit signal 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, the first battery 110 supplies power to the system circuit 140 via the first switch unit 130, the airflow sensor 133, etc. are powered, and the first battery protection circuit 120 , the system circuit 140, and the airflow sensor 133 are in normal working mode. The time from the user's lips touching the mouthpiece to the first battery protection circuit 120, the system circuit 140, and the airflow sensor 133 being in normal working mode is generally in milliseconds, and the user cannot feel it at all. When the user smokes, the airflow sensor 133 will detect the smoking airflow causing the electrical signal change, such as the voltage signal change, and the system circuit 140 will detect the electrical signal change, and then control the atomizer 132 to work, and control the power of the atomizer 132 according to the size of the electrical signal to control the size of the smoke.

[0119] When the user's lips leave the mouthpiece or the electronic cigarette exits the shipping mode for a first preset time, where the first preset time is, for example, 2-30 seconds, for example, 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, at which time the first switch unit 130 is cut off and disconnected, so that the first battery 110 no longer supplies power to the system circuit 140, and the system circuit 140, the airflow sensor 133, and the atomizer 132 are in zero power consumption mode.

[0120] The electronic cigarette of this embodiment has the following advantages:

[0121] 1. Since the capacitance detection circuit 2200 and the detection electrode 2210 are added to 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 appearance of the electronic cigarette, which conforms to the user's long-term appearance experience of the electronic cigarette and is easily accepted by the user;

[0122] 2. The electronic cigarette can enter or exit the shipping mode by detecting the change of capacitance through the capacitance detection circuit 2200. Therefore, when the electronic cigarette is transported, stored or not used by the user for a long time, the electronic cigarette itself will automatically enter the shipping mode. There is no need to add additional operations by the transporter, warehouser or user, and there is no need for the host computer to cooperate with the operation. This is especially important for the producers or transporters of large quantities of electronic cigarettes. It will not increase their additional operating burden and does not require the cooperation of additional equipment, which is conducive to reducing costs. In the shipping mode, 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 components and circuits with large power consumption such as the system circuit 140, the airflow sensor 133, the atomizer 132, and the charging management circuit will not consume power, which is conducive to reducing the power consumption of the electronic cigarette and increasing the use time of the electronic cigarette. Even if the electronic cigarette is transported, stored or placed for a long time, the electronic cigarette has sufficient power. The electronic cigarette will not run out of power when the user experiences it in the mall or uses it for the first time, which improves the user's experience. What is particularly important is that the user does not need to go through additional steps to wake up the electronic cigarette. For example, when the user's lips touch the mouthpiece of the cigarette cartridge, the capacitance detection circuit 2200 can quickly detect the capacitance change and quickly exit the shipping mode. The first switch unit 130 is quickly closed in a very short time. Generally speaking, there will be a few tens of milliseconds between the user's lips touching the mouthpiece of the electronic cigarette and the smoking action. In this embodiment, the time from the user's lips touching the mouthpiece to exiting the shipping mode is generally in the millisecond level, and the fast response can reach the microsecond level. The user cannot feel that the first battery protection circuit 120 of the electronic cigarette is in the shipping mode before. When the user smokes the electronic cigarette, the airflow sensor 133, such as the microphone head and MEMS, has been powered on. 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 achieve smoke output. Therefore, this embodiment can reduce the energy consumption of the electronic cigarette without affecting the user's long-term usage habits, and does not need to increase the user's operation. It is very user-friendly and can well reduce the energy consumption of the electronic cigarette without changing the user's habits.

[0123] 3. In this embodiment, when the user's lips touch the mouthpiece, the electronic cigarette exits the shipping mode. After the user's lips leave the mouthpiece or touch the mouthpiece for a first preset time, the electronic cigarette automatically enters the shipping mode, and the first switch unit 130 disconnects the discharge circuit between the first battery 110 and the system circuit 140, which can greatly reduce the energy consumption of the electronic cigarette, that is, when the user smokes, the electronic cigarette works in the normal working mode, and when the user does not smoke, especially in the interval time between two puffs of the user, the electronic cigarette is also in the shipping mode. This process can reduce the power consumption of the electronic cigarette to the extreme, greatly improve the use time of the electronic cigarette, the first battery 110 can be used for a long time, the user does not need to charge frequently, and improves the user's convenience;

[0124] 4. In this embodiment, the capacitance detection circuit 2200 is always powered by the first battery 110. 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. In addition, the cost of the capacitance detection circuit 2200 is very low and will not increase the cost of the electronic cigarette.

[0125] 5. In this embodiment, the first switch unit 130 is automatically disconnected when the electronic cigarette is in transportation, storage or not in use by the user, so that the system circuit 140 does not consume power. Even if the airflow sensor 133 is changed due to an abnormal shape (due to airflow), the electronic cigarette will not work, and there will be no problem of false triggering of the electronic cigarette;

[0126] 6. In this embodiment, since the electronic cigarette includes the first battery protection circuit 120, when the electronic cigarette is short-circuited or otherwise abnormal, the first battery protection circuit 120 can promptly cut off the electrical connection between the first battery 110 and the system circuit 140, thereby improving the safety performance of the electronic cigarette. Moreover, during storage, warehousing or transportation, since the electronic cigarette is in shipping mode, the system circuit 140, the airflow sensor 133 and other circuits are not powered, so there will be no safety issues even if the electronic cigarette is short-circuited or otherwise abnormal.

[0127] In addition, for other relevant descriptions of this embodiment, please refer to the patents previously applied for by the applicant, with patent application numbers CN202111651757.3, CN202111651734.2, CN202111651733.8, CN202111651725.3, and CN202111648279.0. The contents of these patent applications are also introduced into this application as the contents of this application and will not be repeated here.

[0128] It should be understood that the "plurality" mentioned in this article refers to two or more. Those skilled in the art will easily think of other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present application are indicated by the following claims.

[0129] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0130] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A wireless headset assembly, characterized in that: It includes a wireless headset and a charging case, wherein the wireless headset can be stored in the charging case; The wireless headset includes a first battery, a first battery protection circuit, a system circuit, a first switch unit and a plurality of first contacts, wherein the first battery protection circuit includes a first power supply terminal, a first power ground terminal, a first over-discharge voltage protection unit, a first discharge over-current protection unit, a first reference voltage generating unit, and a first logic control unit, wherein the first power supply terminal and the first power ground terminal are electrically connected to the positive and negative electrodes of the first battery respectively, the first logic control unit is electrically connected to the first switch unit to control the opening or closing of the first switch unit, the first switch unit is used to control the first battery to supply power to the system circuit, and the first battery protection circuit is also electrically connected to the first contact; The charging compartment includes a plurality of second contacts, the second contacts are electrically connected to the first contacts in a contact-type manner, the charging compartment outputs a reset signal, the reset signal is output to the first battery protection circuit via the second contacts and the first contacts, the first logic control unit controls the first switch unit to turn 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 time period, the first logic control unit controls the first switch unit to turn on so as to resume the first battery supplying power to the system circuit; The first battery protection circuit further includes a reset terminal, and the first battery protection circuit receives the reset signal via the reset terminal; The charging compartment further outputs a shipping entry signal, and the shipping entry signal is output to a reset end of the first battery protection circuit via the second contact and the first contact, so that the first battery protection circuit enters a shipping mode. In the shipping mode, the first switch unit is turned off so that the first battery stops supplying power to the system circuit. When the first battery protection circuit recognizes the shipping entry signal, the first battery protection circuit delays for an eighth preset time period, and during the eighth preset time period, the first battery protection circuit outputs a shipping feedback signal to the system circuit so that the system circuit starts shutting down after receiving the shipping feedback signal and completes the shutdown within the eighth preset time period, and after the eighth preset time period, the first battery protection circuit enters the shipping mode; The generating body of the shipping entry signal is different from the generating body of the shipping feedback signal, the system circuit does not enter the shutdown process before the first battery protection circuit receives the shipping entry signal, and the time when the first battery protection circuit outputs the shipping feedback signal is later than the time when the shipping entry signal is received; The duration of the eighth preset time period is greater than the duration required for shutting down the system circuit.

2. The wireless headset assembly according to claim 1, characterized in that: Two of the plurality of first contacts are first power supply contacts and first ground contacts, two of the plurality of second contacts are second power supply contacts and second ground contacts, and when the wireless headset is stored in the charging compartment, the second power supply contact is electrically connected to the first power supply contact, and the second ground contact is electrically connected to the first ground contact; The first battery protection circuit includes a reset end, which is electrically connected to the first power supply contact and the first logic control unit respectively. The reset end receives the reset signal. The first logic control unit controls the first switch unit to turn off so that the first battery stops supplying power to the system circuit. After the first switch unit is turned off for a first preset time period, the first logic control unit controls the first switch unit to turn on to resume the first battery supplying power to the system circuit.

3. The wireless headset assembly according to claim 1, characterized in that: The number of the first contacts is at least 3, one of the plurality of the first contacts is a first communication contact, the number of the second contacts corresponds to the number of the first contacts, one of the plurality of the second contacts is a second communication contact, and when the wireless headset 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 reset end, which is electrically connected to the first communication contact and the first logic control unit respectively. The reset end receives the reset signal. The first logic control unit controls the first switch unit to turn off so that the first battery stops supplying power to the system circuit. After the first switch unit is turned off for a first preset time period, the first logic control unit controls the first switch unit to turn on to resume the first battery supplying power to the system circuit.

4. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: The first contact of the wireless headset for transmitting the reset signal is also used to transmit a communication signal to the system circuit; wherein the communication signal includes a first pulse signal, and the reset signal includes a 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 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; or, A time width of a high level of the first pulse signal is different from a time width of a high level of the second pulse signal, and a time width of a low level of the first pulse signal is different from a time width of a low level of the second pulse signal.

5. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: The reset signal includes a plurality of identical pulse signals, and the first battery protection circuit determines whether it is a reset signal according to the time width of the high level or / and low level of the received pulse signal and the number of the pulse signals.

6. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: When the charging station sends a first communication signal to the system circuit and does not receive a feedback signal within a second preset time period, the charging station generates and outputs a reset signal.

7. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: The charging case 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 headset is reset, wherein the third preset time period is greater than the first preset time period.

8. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: The first logic control unit includes a CTL signal sampling unit, a first pulse width timing unit, a first pulse counting unit, a clock generating unit, a sampling timing unit, and a restart control unit, wherein the CTL signal sampling unit is electrically connected to the reset end, and the CTL signal sampling unit is also electrically connected to the first pulse width timing unit, the clock generating unit, and the restart control unit respectively, the first pulse width timing unit is electrically connected to the first pulse counting unit, the clock generating unit is electrically connected to the sampling timing unit and the restart control unit respectively, the sampling timing unit is electrically connected to the first pulse counting unit, the pulse counting unit is electrically connected to the restart control unit, the restart control unit is electrically connected to the control end of the first switch unit, and the restart control unit controls the first switch unit to be turned on or off according to an input signal.

9. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: The wireless headset receives the shipping entry signal and the reset signal through the same first contact; or, The charging compartment comprises a compartment body and a hatch cover, wherein the hatch cover is covered on the compartment body to form a receiving cavity, wherein the wireless headset is received in the receiving cavity, and after the first battery protection circuit enters the shipping mode and when the charging compartment hatch cover is opened, the charging compartment charges the wireless headset to make the wireless headset exit the shipping mode; or In the shipping mode, the first battery protection circuit is in a zero power consumption mode.

10. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: In a fourth preset time period after the shipping entry signal is sent, the charging compartment detects whether the potential of the second end of the first switch unit changes; 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 bin during the eighth preset time period.

11. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: 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 a first chip, and the first switch unit is located outside the first chip.

12. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: The first end of the first switch unit is electrically connected to the negative electrode of the first battery, the second end of the first switch unit is electrically connected to the second end of the system circuit and one of the first contacts respectively, 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 electrode of the first battery is electrically connected to the first end of the system circuit and another of the first contacts; or, The first battery protection circuit includes a system end, a first end of the first switch unit is electrically connected to the first power ground end, a second end of the first switch unit is electrically connected to the system end, the system end is also electrically connected to the second end of the system circuit and one of the first contacts, and the positive electrode of the first battery is electrically connected to the first end of the system circuit and another of the first contacts; or The first end of the first switch unit is electrically connected to the positive electrode of the first battery, 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 further includes a system end, the system end is electrically connected to the second end of the first switch unit, and the negative electrode of the first battery is electrically connected to the second end of the system circuit and another of the first contacts; or, The first battery protection circuit includes a system end, a first end of the first switch unit is electrically connected to the first power supply end, a second end of the first switch unit is electrically connected to the system end, 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 electrically connected to the second end of the system circuit and another of the first contacts.

13. The wireless headset assembly according to any one of claims 1 to 3, characterized in that: The second contact includes a spring pin, and the first contact includes a conductive contact sheet, a conductive pin, a conductive column, a conductive tab or a gold finger.

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