Wireless earphone and charging method of wireless earphone

Abstract

The embodiment of the present invention relates to the field of charging control technology, and discloses a wireless headset, including: a signal collection antenna, a signal sharing switch, a first RF-DC conversion module, a Bluetooth module and a battery, wherein the signal collection antenna is connected to the signal sharing switch, the first RF-DC conversion module and the Bluetooth module are both connected to the signal sharing switch, the first RF-DC conversion module and the Bluetooth module are also connected to the battery at the same time, the signal sharing switch is used to realize the parallel transmission of the first radio frequency signal and the Bluetooth signal, and the first RF-DC conversion module is used to convert the first radio frequency signal transmitted by the signal sharing switch into direct current. The present invention also discloses a charging method for wireless headsets. Using the wireless headset and the method for charging the wireless headset provided by the present invention, the wireless headset can communicate while charging, and is charged through the first radio frequency signal transmitted by the terminal, thereby extending the battery life of the wireless headset and improving the user experience.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of charging control technology, and in particular to a wireless headset and a charging method for the wireless headset. Background Art

[0002] Wireless headphones communicate with terminals through Bluetooth signals. Compared with traditional headphones, they have the advantages of small size and high portability, and are suitable for a variety of application scenarios.

[0003] However, existing wireless headphones have a short battery life, cannot communicate while charging, and cannot be charged to maintain battery life while in use, which affects the user experience. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a wireless headset and a charging method for a wireless headset, so that the wireless headset can communicate while charging and be charged through the radio frequency signal transmitted by the terminal, thereby extending the battery life of the wireless headset and improving the user experience.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a wireless headset, comprising:

[0006] A signal collecting antenna, used for receiving a Bluetooth signal and a first RF signal from a terminal; a signal sharing switch, used for transmitting the Bluetooth signal and the first RF signal in parallel; a first RF-DC (Radio Frequency-Direct Current) conversion module, connected to the signal sharing switch, used for converting the first RF signal into direct current; a Bluetooth module, connected to the signal sharing switch, used for communicating with the terminal; and a battery, connected to the first RF-DC conversion module and the Bluetooth module, used for storing the direct current converted by the first RF-DC conversion module and for powering the Bluetooth module.

[0007] An embodiment of the present invention also provides a charging method for a wireless headset, comprising: a signal collection antenna of the wireless headset receives a Bluetooth signal and a radio frequency signal of a terminal; the Bluetooth module of the wireless headset sends a charging request signal to the terminal; a signal sharing switch of the wireless headset transmits the radio frequency signal to the RF-DC conversion module of the wireless headset and sends a Bluetooth signal to the Bluetooth module of the wireless headset; the RF-DC conversion module receives the radio frequency signal and converts the radio frequency signal into direct current to supply power to a battery of the wireless headset.

[0008] Compared with the prior art, the wireless headset provided by the present invention includes a signal collection antenna, a signal sharing switch, a first RF-DC conversion module, a Bluetooth module and a battery, wherein the signal collection antenna is connected to the signal sharing switch, the first RF-DC conversion module and the Bluetooth module are both connected to the signal sharing switch, the first RF-DC conversion module and the Bluetooth module are also connected to the battery at the same time, the signal sharing switch is used to realize parallel transmission of the first radio frequency signal and the Bluetooth signal, and the first RF-DC conversion module is used to convert the first radio frequency signal transmitted by the signal sharing switch into direct current. In this way, by utilizing the parallel transmission function of the signal sharing switch and the energy conversion function of the first RF-DC conversion module, the wireless headset can communicate while charging and be charged through the first radio frequency signal transmitted by the terminal, thereby extending the battery life of the wireless headset and improving the user experience.

[0009] Optionally, the first RF-DC conversion module is connected to the Bluetooth module, and the first RF-DC conversion module uses the converted direct current to power the Bluetooth module. The first RF-DC conversion module is connected to the Bluetooth module, so that when the wireless headset is charged using the first radio frequency signal, the direct current output by the first RF-DC conversion module can directly power the Bluetooth module, and when the battery is out of power, it can provide enough power to start the Bluetooth module in a short time, so that the wireless headset can be used normally quickly, reducing the waiting time of the user.

[0010] Optionally, the first RF-DC conversion module is connected to the Bluetooth module, and the first RF-DC conversion module detects the strength of the first RF signal. The first RF-DC conversion module is connected to the Bluetooth module, and when the first RF-DC conversion module detects the strength of the first RF signal in the environment, the detection result can be sent to the terminal through the Bluetooth module, and the user can determine whether the first RF signal needs to be strengthened according to the detection result.

[0011] Optionally, it further includes a first matching circuit, the first RF-DC conversion module is connected to the first matching circuit, the first RF-DC conversion module is connected to the signal sharing switch via the first matching circuit, and the first matching circuit is used to improve the transmission efficiency of the first RF signal. The wireless headset also includes a first matching circuit, the first RF-DC conversion module is connected to the first matching circuit, the first RF-DC conversion module is connected to the signal sharing switch via the first matching circuit, and the first matching circuit can improve the transmission efficiency of the first RF signal, thereby improving the output of the first RF-DC conversion module.

[0012] Optionally, it also includes a divider and a second RF-DC conversion module, the divider includes an input port, a first output port and a second output port, the input port is connected to the signal collection antenna, the first output port is connected to the signal sharing switch, and the second output port is connected to the second RF-DC conversion module; the second RF-DC conversion module is connected to the Bluetooth module and / or the battery, and the second RF-DC conversion module is used to receive a second RF signal and convert the second RF signal into direct current to power the Bluetooth module and / or the battery. The wireless headset is also provided with a frequency divider and a second RF-DC conversion module. The frequency divider includes an input port, a first output port and a second output port. The input port is connected to a signal collection antenna, the first output port is connected to a signal sharing switch, and the second output port is connected to a second RF-DC conversion module. The second RF-DC conversion module is used to receive a second RF signal emitted by any terminal other than the terminal used by the user, and convert the second RF signal into direct current. The second RF-DC conversion module is connected to a Bluetooth module and / or a battery to supply power to the Bluetooth module and / or the battery. In this way, by setting a frequency divider, the wireless headset can receive the second RF signal emitted by other terminals while receiving the first RF signal emitted by the terminal used by the user, thereby increasing the energy received by the wireless headset and improving the charging speed of the wireless headset.

[0013] Optionally, a second matching circuit is further included, the second RF-DC conversion module is connected to the second matching circuit, the second RF-DC conversion module is connected to the second output port via the second matching circuit, and the second matching circuit is used to improve the transmission efficiency of the second RF signal. The wireless headset also includes a second matching circuit, the second RF-DC conversion module is connected to the second matching circuit, and the second matching circuit improves the transmission efficiency of the second RF signal, thereby improving the output of the second RF-DC conversion module, and further improving the charging speed of the wireless headset.

[0014] Optionally, the charging method further includes: before the Bluetooth module of the wireless headset sends a charging signal to the terminal, the Bluetooth module reads the first power of the battery and determines whether the first power is lower than a first preset threshold; if the first power is lower than the first preset threshold, the Bluetooth module sends the charging signal to the terminal; if the first power is equal to or higher than the first preset threshold, the Bluetooth module turns off the signal sharing switch. Before the Bluetooth module of the wireless headset sends a charging signal to the terminal, the Bluetooth module first detects the power of the battery, obtains the first power of the battery, and compares the first power with the first preset threshold. When the first power is lower than the first preset threshold, the Bluetooth module sends a charging request signal to the terminal to remind the user to provide a radio frequency signal through the terminal to meet the charging requirements of the wireless headset, thereby providing sufficient energy for the wireless headset to charge. When the first power is equal to or higher than the first preset threshold, the Bluetooth module does not send a charging request signal, and the wireless headset does not charge at this time.

[0015] Optionally, the charging method also includes: after the signal sharing switch of the wireless headset transmits the RF signal to the RF-DC conversion module of the wireless headset, the RF-DC conversion module receives the RF signal and determines whether the strength of the RF signal is greater than a second preset threshold; if the strength of the RF signal is less than the second preset threshold, the Bluetooth module sends an instruction to the terminal requesting to enhance the RF signal; if the strength of the RF signal is equal to or greater than the second preset threshold, the RF-DC conversion module converts the energy of the RF signal into direct current to power the Bluetooth module and / or the battery. After the signal sharing switch transmits the RF signal to the RF-DC conversion module, the RF-DC conversion module receives the RF signal and compares the RF signal with a second preset threshold value. When the strength of the RF signal is less than the second preset threshold value, the Bluetooth module sends an instruction to the terminal requesting to enhance the RF signal. At this time, the user enhances the strength of the RF signal emitted by the terminal by operating the terminal to meet the charging requirements of the wireless headset. When the strength of the RF signal is equal to or greater than the second preset threshold value, the RF-DC conversion module receives the RF signal and converts the energy of the RF signal into direct current to supply power to the Bluetooth module and / or the battery. In this way, it can be ensured that the RF signal has sufficient strength when the wireless headset is charging, thereby ensuring the charging speed, so that the wireless headset can be charged and used normally in a shorter time.

[0016] Optionally, the charging method further includes: when the RF-DC conversion module converts the RF signal and supplies power to the battery and / or the Bluetooth module, the Bluetooth module reads the second power of the battery and determines whether the second power is higher than a third preset threshold; if the second power is lower than or equal to the third preset threshold, the RF-DC conversion module continues to supply power to the battery and / or the Bluetooth module; if the second power is higher than the third preset threshold, the Bluetooth module turns off the signal sharing switch. When the RF-DC conversion module converts the RF signal and supplies power to the battery and / or the Bluetooth module, the Bluetooth module reads the second power of the battery, obtains the second power of the battery, and compares the second power with the third preset threshold. If the second power is lower than or equal to the third preset threshold, the RF-DC conversion module continues to convert the RF signal and supplies power to the battery and / or the Bluetooth module. If the second power is higher than the third preset threshold, the Bluetooth module turns off the signal sharing switch and ends charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 is a schematic structural diagram of a wireless headset provided by a first embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a wireless headset with a frequency divider provided by a first embodiment of the present invention;

[0020] Figure 3 A method for charging a wireless headset provided in a second embodiment of the present invention;

[0021] Figure 4 4 is a flow chart of a charging method for a wireless headset provided in a second embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can be implemented.

[0023] In the embodiments of the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the terms "installed", "set", "provided with", "opened", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0027] The implementation details of the wireless headset and the charging method of the wireless headset of this embodiment are specifically described below. The following content is only the implementation details provided for the convenience of understanding and is not necessary for the implementation of this solution.

[0028] A first embodiment of the present invention relates to a wireless headset, such as Figure 1As shown, it includes a signal collecting antenna 100, a signal sharing switch 200, a first RF-DC conversion module 300, a Bluetooth module 400 and a battery 500. The signal collecting antenna 100 is used to receive a Bluetooth signal and a first RF signal from a terminal. The signal sharing switch 200 is connected to the signal collecting antenna 100 and is used to transmit the Bluetooth signal and the first RF signal in parallel. The first RF-DC conversion module 300 is connected to the signal sharing switch 200 and is used to convert the first RF signal into direct current. The Bluetooth module 400 is connected to the signal sharing switch 200 and is used to communicate with the terminal. The battery 500 is connected to the first RF-DC conversion module 300 and the Bluetooth module 400 and is used to store the direct current converted by the first RF-DC conversion module 300 and to power the Bluetooth module 400.

[0029] Compared with the prior art, the wireless headset provided by the present invention includes a signal collection antenna 100, a signal sharing switch 200, a first RF-DC conversion module 300, a Bluetooth module 400 and a battery 500, wherein the signal collection antenna 100 is connected to the signal sharing switch 200, the first RF-DC conversion module 300 and the Bluetooth module 400 are both connected to the signal sharing switch 200, the first RF-DC conversion module 300 and the Bluetooth module 400 are also connected to the battery 500 at the same time, the signal sharing switch 200 is used to realize the parallel transmission of the first radio frequency signal and the Bluetooth signal, and the first RF-DC conversion module 300 is used to convert the first radio frequency signal transmitted by the signal sharing switch 200 into direct current. In this way, by utilizing the parallel transmission function of the signal sharing switch 200 and the energy conversion function of the first RF-DC conversion module 300, the wireless headset can communicate while charging and be charged through the first radio frequency signal transmitted by the terminal, thereby extending the battery life of the wireless headset and improving the user experience.

[0030] It can be understood that the first RF signal is a wireless network signal of the terminal, and the terminal can be a mobile smart terminal such as a mobile phone, a tablet computer, a smart watch, etc. As long as the wireless headset can receive the first RF signal emitted by the terminal and convert the first RF signal into direct current, the embodiment of the present invention does not make specific limitations on this.

[0031] Please refer again Figure 1 In some embodiments, the first RF-DC conversion module 300 is connected to the Bluetooth module 400. In this way, when the wireless headset is charged using the first RF signal, the DC power output by the first RF-DC conversion module 300 can directly power the Bluetooth module 400, providing sufficient power to start the Bluetooth module 400 in a short time, so that the wireless headset can be used normally quickly and reduce the user's waiting time.

[0032] In some embodiments, the first RF-DC conversion module 300 is connected to the Bluetooth module 400. When the first RF-DC conversion module 300 detects the strength of the first RF signal in the environment, the detection result can be sent to the terminal through the Bluetooth module 400, and the user can determine whether the first RF signal needs to be strengthened based on the detection result.

[0033] In some embodiments, the wireless headset also includes a first matching circuit 600, the first RF-DC conversion module 300 is connected to the first matching circuit 600, and the first RF-DC conversion module 300 is connected to the signal sharing switch 200 via the first matching circuit 600. The first matching circuit 600 can improve the transmission efficiency of the first RF signal, thereby improving the output of the first RF-DC conversion module 300.

[0034] It can be understood that the first matching circuit 600 can be a T-shaped circuit or a π-shaped circuit, as long as it can improve the transmission efficiency of the first RF signal and ensure that the strength of the first RF signal received by the first RF-DC conversion module is sufficient for charging. The embodiment of the present invention does not make specific limitations on this.

[0035] Please refer to Figure 2 In some embodiments, the wireless headset is further provided with a frequency divider 700 and a second RF-DC conversion module 800. The frequency divider 700 includes an input port, a first output port, and a second output port. The input port is connected to the signal collection antenna 100, the first output port is connected to the signal sharing switch 200, and the second output port is connected to the second RF-DC conversion module 800. The second RF-DC conversion module 800 is used to receive a second RF signal emitted by any terminal other than the terminal used by the user, and convert the second RF signal into direct current. The second RF-DC conversion module 800 is connected to the Bluetooth module 400 and / or the battery 500 to supply power to the Bluetooth module 400 and / or the battery 500. In this way, by setting the frequency divider 700, the wireless headset can receive the second RF signal emitted by other terminals while receiving the first RF signal emitted by the terminal used by the user, thereby increasing the energy received by the wireless headset and improving the charging speed of the wireless headset.

[0036] Optionally, the terminal that transmits the second RF signal may be a router, a satellite, a radar or other transmitting device. As long as the second RF-DC conversion module can receive the second RF signal emitted by the transmitting terminal and convert it into direct current, the embodiment of the present invention does not specifically limit this.

[0037] It can be understood that the second RF-DC conversion module 800 is connected to the Bluetooth module 400 and / or the battery 500, and supplies power to the Bluetooth module 400 and / or the battery 500, including: the second RF-DC conversion module 800 is connected to the Bluetooth module 400, and supplies power to the Bluetooth module 400; or, the second RF-DC conversion module 800 is connected to the battery 500, and supplies power to the battery 500; or, the second RF-DC conversion module 800 is connected to the Bluetooth module 400 and the battery 500, and supplies power to the Bluetooth module 400 and the battery 500 at the same time.

[0038] Please refer again Figure 2 In some embodiments, the wireless headset also includes a second matching circuit 900, and the second RF-DC conversion module 800 is connected to the second matching circuit 900. The second matching circuit 900 improves the transmission efficiency of the second RF signal, thereby improving the output of the second RF-DC conversion module 800, thereby improving the charging speed of the wireless headset.

[0039] A second embodiment of the present invention relates to a charging method for a wireless headset, such as Figure 3 As shown, including:

[0040] The signal collection antenna of the wireless headset receives the Bluetooth signal and RF signal of the terminal, the Bluetooth module of the wireless headset sends a charging request signal to the terminal, the signal sharing switch of the wireless headset transmits the RF signal to the RF-DC conversion module of the wireless headset and sends the Bluetooth signal to the Bluetooth module of the wireless headset, the RF-DC conversion module receives the RF signal and converts the RF signal into direct current to power the battery of the wireless headset.

[0041] Compared with the prior art, the charging method for wireless headphones provided in the embodiment of the present invention realizes parallel transmission of Bluetooth signals and radio frequency signals through a signal sharing switch, and uses an RF-DC conversion module to convert radio frequency signals into direct current, thereby charging the wireless headphones. This allows users to charge the wireless headphones while using the Bluetooth headphones, thereby extending the battery life of the wireless headphones.

[0042] Please refer to Figure 4 In some embodiments, before the Bluetooth module of the wireless headset sends a charging signal to the terminal, the Bluetooth module first detects the battery power to obtain a first battery power, and compares the first battery power with a first preset threshold. When the first battery power is lower than the first preset threshold, the Bluetooth module sends a charging request signal to the terminal to remind the user to provide a radio frequency signal through the terminal to meet the charging needs of the wireless headset, thereby providing sufficient energy for the wireless headset to charge. When the first battery power is equal to or higher than the first preset threshold, the Bluetooth module does not send a charging request signal, and the wireless headset does not charge.

[0043] Optionally, the first preset threshold is 85%. The first preset threshold may also be any other value between 0% and 100%, which may be adjusted according to actual conditions, and the embodiment of the present invention does not specifically limit this.

[0044] In some embodiments, after the signal sharing switch transmits the RF signal to the RF-DC conversion module, the RF-DC conversion module receives the RF signal and compares the RF signal with a second preset threshold. When the strength of the RF signal is less than the second preset threshold, the Bluetooth module sends an instruction to the terminal requesting to enhance the RF signal. At this time, the user enhances the strength of the RF signal emitted by the terminal by operating the terminal to meet the charging requirements of the wireless headset. When the strength of the RF signal is equal to or greater than the second preset threshold, the RF-DC conversion module receives the RF signal and converts the energy of the RF signal into direct current to power the Bluetooth module and / or the battery. In this way, it can be ensured that the RF signal has sufficient strength when the wireless headset is charging, thereby ensuring the charging speed, so that the wireless headset can be charged and used normally in a shorter time.

[0045] It can be understood that after the Bluetooth module sends an instruction to the terminal requesting to enhance the RF signal, the RF-DC conversion module again detects the strength of the RF signal until the strength of the RF signal is equal to or greater than the second preset threshold. The RF-DC conversion module then converts the RF signal to power the Bluetooth module and / or the battery.

[0046] In some embodiments, when the RF-DC conversion module converts the RF signal and supplies power to the battery and / or the Bluetooth module, the Bluetooth module reads the second power level of the battery, obtains the second power level of the battery, and compares the second power level with a third preset threshold value. If the second power level is lower than or equal to the third preset threshold value, the RF-DC conversion module continues to convert the RF signal and supplies power to the battery and / or the Bluetooth module. If the second power level is higher than the third preset threshold value, the Bluetooth module turns off the signal sharing switch and ends charging.

[0047] It is understandable that during the charging process, the Bluetooth module repeatedly reads and updates the battery power information to obtain a second power level, and then compares the second power level with a third preset threshold until the second power level is greater than the third preset threshold.

[0048] Optionally, the third preset threshold is 99%. Setting the third preset threshold to 99% can ensure that when the wireless headset stops charging, the battery of the wireless headset is fully charged. The third preset threshold can also be other values, which can be adjusted according to actual conditions. The embodiment of the present invention does not make specific limitations on this.

[0049] It should be noted that the charging method for wireless headphones provided by the present invention may simultaneously include schemes for determining the first power level and the first preset threshold, determining the radio frequency signal strength and the second preset threshold, and determining the second power level and the third preset threshold, or may only include any one of the three schemes, or any two of them.

[0050] The wireless headset and the charging method of the wireless headset provided in the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above implementation methods is only used to help understand the ideas of the present invention. There may be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A wireless headset, characterized in that: include: A signal collection antenna, used to receive a Bluetooth signal and a first radio frequency signal from a terminal used by a user, and to receive a second radio frequency signal from any terminal other than the terminal used by the user, wherein the terminal used by the user is a mobile smart terminal; A signal sharing switch, used for transmitting the Bluetooth signal and the first radio frequency signal in parallel; A first RF-DC conversion module, connected to the signal sharing switch, configured to convert the first RF signal into direct current; A Bluetooth module, connected to the signal sharing switch, for communicating with the terminal; and a battery, connected to the first RF-DC conversion module and the Bluetooth module, used to store the direct current converted by the first RF-DC conversion module and to power the Bluetooth module; A second RF-DC conversion module, connected to the Bluetooth module and / or the battery, and configured to convert the second RF signal into direct current to supply power to the Bluetooth module and / or the battery; A first matching circuit, the first RF-DC conversion module is connected to the first matching circuit, the first RF-DC conversion module is connected to the signal sharing switch via the first matching circuit, and the first matching circuit is used to improve the transmission efficiency of the first RF signal.

2. The wireless headset according to claim 1, characterized in that: The first RF-DC conversion module is connected to the Bluetooth module, and the first RF-DC conversion module uses the converted direct current to power the Bluetooth module.

3. The wireless headset according to claim 1, characterized in that: The first RF-DC conversion module is connected to the Bluetooth module, and the first RF-DC conversion module detects the strength of the first radio frequency signal.

4. The wireless headset according to any one of claims 1 to 3, characterized in that: It also includes a divider and a second RF-DC conversion module, the divider includes an input port, a first output port and a second output port, the input port is connected to the signal collection antenna, the first output port is connected to the signal sharing switch, and the second output port is connected to the second RF-DC conversion module.

5. The wireless headset according to claim 4, characterized in that: It also includes a second matching circuit, the second RF-DC conversion module is connected to the second matching circuit, the second RF-DC conversion module is connected to the second output port via the second matching circuit, and the second matching circuit is used to improve the transmission efficiency of the second RF signal.

6. A method for charging a wireless headset, characterized in that: include: The signal collecting antenna of the wireless headset receives a Bluetooth signal and a first radio frequency signal from a terminal used by a user, and receives a second radio frequency signal from any terminal other than the terminal used by the user, wherein the terminal used by the user is a mobile smart terminal; The Bluetooth module of the wireless headset sends a charging request signal to the terminal; The signal sharing switch of the wireless headset transmits the first radio frequency signal to the first RF-DC conversion module of the wireless headset and sends a Bluetooth signal to the Bluetooth module of the wireless headset; The first RF-DC conversion module receives the first RF signal and converts the first RF signal into direct current to supply power to the battery of the wireless headset; A second RF-DC conversion module converts the second RF signal into direct current to supply power to the Bluetooth module and / or the battery; The first RF-DC conversion module is connected to the signal sharing switch via the first matching circuit of the wireless headset to improve the transmission efficiency of the first radio frequency signal.

7. The wireless headset charging method according to claim 6, characterized in that: The charging method further comprises: Before the Bluetooth module of the wireless headset sends a charging signal to the terminal, the Bluetooth module reads a first power level of the battery and determines whether the first power level is lower than a first preset threshold; If the first power level is lower than the first preset threshold, the Bluetooth module sends the charging signal to the terminal; If the first power level is equal to or higher than the first preset threshold, the Bluetooth module turns off the signal sharing switch.

8. The wireless headset charging method according to claim 6 or 7, characterized in that: The charging method further comprises: After the signal sharing switch of the wireless headset transmits the first RF signal to the first RF-DC conversion module of the wireless headset, the first RF-DC conversion module receives the first RF signal and determines whether the strength of the first RF signal is greater than a second preset threshold; If the strength of the first radio frequency signal is less than the second preset threshold, the Bluetooth module sends an instruction to the terminal requesting to enhance the radio frequency signal; If the strength of the first RF signal is equal to or greater than the second preset threshold, the first RF-DC conversion module converts the energy of the first RF signal into direct current to supply power to the Bluetooth module and / or the battery.

9. The wireless headset charging method according to claim 6 or 7, characterized in that: The charging method further comprises: When the first RF-DC conversion module converts the first RF signal and supplies power to the battery and / or the Bluetooth module, the Bluetooth module reads a second power level of the battery and determines whether the second power level is higher than a third preset threshold; If the second power level is lower than or equal to the third preset threshold, the first RF-DC conversion module continues to supply power to the battery and / or the Bluetooth module; If the second power level is higher than the third preset threshold, the Bluetooth module turns off the signal sharing switch.

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