CN220653517U

CN220653517U - Open bluetooth headset

Info

Publication number: CN220653517U
Application number: CN202322138503.2U
Authority: CN
Inventors: 郭世文; 吴海全; 戴家涛; 杨卉; 谢光河; 吴勇
Original assignee: Zhaoqing Deqing Guanxu Electronics Co ltd; Shenzhen Grandsun Electronics Co Ltd
Current assignee: Zhaoqing Deqing Guanxu Electronics Co ltd; Shenzhen Grandsun Electronics Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-03-22
Anticipated expiration: 2033-08-09

Abstract

The application discloses an open Bluetooth headset, which comprises a sound outlet part, a power supply part and an ear hanging part; the sound emitting part comprises a Bluetooth module and a loudspeaker, the power supply part comprises a wireless charging receiving module and a battery, and the wireless charging receiving module is used for acquiring electric energy from external wireless charging transmitting equipment to charge the battery; the ear hanging part is used for connecting the sound outlet part and the power supply part, the shape of the ear hanging part corresponds to the shape of the auricle of the human body, and a clamping force is formed between the ear hanging part and the sound outlet part when the Bluetooth earphone is worn so as to fix the open Bluetooth earphone on the auricle. The open bluetooth headset that this application embodiment provided only need press close to the earhole with play sound portion when wearing, has avoided the healthy scheduling problem of ear canal that traditional in-ear earphone brought. And the built-in wireless receiving module that charges has realized the wireless charging of open bluetooth headset self, only needs to have wireless transmitting equipment that charges, just can charge at any time, charges more convenient and fast.

Description

Open bluetooth headset

Technical Field

The utility model relates to the technical field of Bluetooth headphones, in particular to an open Bluetooth headphone.

Background

With the popularization of bluetooth headset, open bluetooth headset (Open Wearable Stereo, OWS) is popular gradually by the user, because its play channel part can not plug into inside the user's ear, consequently, the bluetooth headset of OWS can not hurt user's ear canal, has healthier advantage of wearing.

The traditional open Bluetooth headset is charged by wire, namely, the data wire is used for charging, and the charging mode is not convenient enough. Whereas existing in-ear headphones are typically charged wirelessly through a charging box. However, the OWS bluetooth headset has a larger size than the in-ear headset, and if the charging box is also used for wireless charging, the charging box is bulky and not portable enough.

Therefore, how to realize convenient and quick charging of the OWS bluetooth headset is a technical problem to be solved.

Disclosure of Invention

An object of the present application is to provide an open bluetooth headset, which can realize convenient and fast charging.

In a first aspect, an embodiment of the present application provides an open bluetooth headset, where the open bluetooth headset includes a sound outputting portion, a power supply portion, and an ear-hanging portion;

the sound outlet part comprises a Bluetooth module and a loudspeaker, the Bluetooth module is used for wirelessly receiving and decoding the audio, and the loudspeaker is used for playing the audio decoded by the Bluetooth module;

the power supply part comprises a wireless charging receiving module and a battery, wherein the wireless charging receiving module is used for acquiring electric energy from external wireless charging transmitting equipment so as to charge the battery;

the power supply part also comprises a discharging module, and the discharging module is used for outputting the electric energy stored in the battery to the sound part to supply power;

the ear hanging part is used for connecting the sound outlet part and the power supply part, the shape of the ear hanging part corresponds to the shape of the auricle of the human body, and a clamping force is formed between the ear hanging part and the sound outlet part when the Bluetooth earphone is worn so as to fix the open Bluetooth earphone on the auricle.

In an alternative embodiment, the wireless charging receiving module comprises an induction coil and a charging receiving chip;

the induction coil is used for receiving a magnetic field generated by external wireless charging transmitting equipment and generating induction current through electromagnetic induction;

the charging receiving chip is used for converting the induction current generated by the induction coil into direct current after rectification and voltage stabilization so as to charge the battery;

the induction coil and the charge receiving chip are coupled through a resonance capacitor.

In an alternative embodiment, a rectifier and a voltage stabilizer are integrated in the charging receiving chip, the rectifier is used for rectifying the induced current to obtain direct current, and the voltage stabilizer is used for stabilizing the direct current to obtain direct current with stable voltage value.

In an optional embodiment, the wireless charging receiving module further includes an over-temperature protection unit and a current limiting control unit electrically connected with the wireless charging receiving chip, the over-temperature protection unit is used for detecting whether the wireless charging receiving module exceeds a preset temperature, and the current limiting control unit is used for limiting the current of the wireless charging receiving module.

In an alternative embodiment, the induction coil is in a flat circular ring shape, is vertically attached along the outer wall of the battery, and is filled with a magnetism isolating material between the induction coil and the battery.

In an alternative embodiment, the Bluetooth module comprises a Bluetooth chip and a functional module externally connected with the Bluetooth chip, wherein the functional module comprises an antenna module, a six-axis acceleration-gyroscope module, a crystal oscillator module, a serial flash memory module, a touch module, a main microphone and a secondary microphone;

the antenna module is used for receiving Bluetooth audio and comprises an antenna and a filter connected between the antenna and the Bluetooth chip;

the six-axis acceleration-gyroscope module is used for detecting the posture of the earphone so that the Bluetooth chip feeds back according to the posture detection result;

the crystal oscillator module is used for providing an oscillation signal for the Bluetooth chip;

the serial flash memory module is used for storing a preset Bluetooth program;

the touch module is used for interacting with a user and comprises a touch pad with multifunctional keys;

the main microphone is used for picking up calls;

the secondary microphone is used for active noise reduction.

In an alternative embodiment, the bluetooth chip and the loudspeaker are connected through an amplifier, and the amplifier is used for amplifying the audio signal analyzed by the bluetooth chip.

In an alternative embodiment, the above functional module further includes a power management module, where the power management module is configured to manage a voltage output by the power supply unit.

In an alternative embodiment, the functional module further comprises a USB contact for obtaining electrical energy from an external power source to recharge the battery when the wireless charging receiving module is not operating.

Compared with the prior art, the embodiment of the application has the beneficial effects that: the open bluetooth headset that this application embodiment provided only need press close to the earhole with play sound portion when wearing, has avoided the healthy scheduling problem of ear canal that traditional in-ear earphone brought. And moreover, the wireless charging of the open Bluetooth headset is realized through the built-in wireless charging receiving module, a user does not need to carry a data line or a charging box, and the charging is more convenient and quick.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an open bluetooth headset provided in the present application;

fig. 2 is a schematic circuit block diagram of an open bluetooth headset provided in the present application;

fig. 3 is a schematic circuit diagram of a wireless charging receiving module provided in the present application;

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Fig. 1 is a schematic structural diagram of an open bluetooth headset provided in the present application.

As shown in fig. 1, the open bluetooth headset 100 includes a sound outlet portion 1, a power supply portion 2, and an ear-hanging portion 3; the sound outlet part 1 comprises a Bluetooth module 11 and a loudspeaker 12, wherein the Bluetooth module 11 is used for wirelessly receiving and decoding the audio, and the loudspeaker 12 is used for playing the audio decoded by the Bluetooth module; the power supply section 2 includes a wireless charging reception module 21 and a battery 22, the wireless charging reception module 21 being configured to acquire electric power from an external wireless charging transmission device to charge the battery 22; the power supply part 2 further comprises a discharging module 23 for outputting the electric energy stored in the battery 22 to the sound part 1 to supply power; the ear hanging part 3 is used for connecting the sound emitting part 1 and the power supply part 2, the shape of the ear hanging part 3 corresponds to the shape of the auricle of a human body, and a clamping force is formed between the ear hanging part 3 and the sound emitting part 1 when the Bluetooth headset is worn so as to fix the open Bluetooth headset 100 on the auricle.

In this embodiment, the open bluetooth headset 100 is hung on the ear of the user when worn, so that only the sound outlet portion 1 is needed to be close to the earhole, and the problems of health of the auditory canal and the like caused by the conventional in-ear headset are avoided. Meanwhile, wireless charging of the earphone is achieved through the built-in wireless charging receiving module 21, electric energy can be directly obtained from the wireless charging transmitting equipment, and charging is more convenient.

In an embodiment that can be implemented in the present application, as shown in fig. 2, the wireless charging receiving module 21 includes an induction coil 21-1 and a charging receiving chip 21-2; wherein the induction coil 21-1 is used for receiving a magnetic field generated by external wireless charging transmitting equipment and generating induction current through electromagnetic induction; the charging receiving chip 21-2 is used for converting the induction current generated by the induction coil into direct current after rectification and voltage stabilization so as to charge the battery 22; the battery 22 may be a lithium battery to provide a more powerful battery life.

In general, the distance that the induction coil mounted on the small-sized device can generate electromagnetic induction is generally between 5mm and 15mm, so that the induction coil 21-1 is in a flat circular ring shape and vertically attached along the outer wall of the battery 22 in order to facilitate the induction coil 21-1 to be close to the wireless charging transmitting device. The flat coil may have a relatively small thickness and a relatively large length and width, and may reduce a distance from an induction coil in the wireless charging transmitting device. Preferably, the space between the induction coil 21-1 and the battery 22 is filled with a magnetism isolating material to prevent lithium ions in the battery 22 from being magnetized and heated.

It should be noted that the wireless charging receiving device may be disposed near the wireless charging transmitting device to form a wireless charging system. The wireless charging transmitting device may transmit a varying magnetic field through the transmitting coil. The induction coil of the wireless charging receiving device may be coupled with the transmitting coil of the wireless charging transmitting device such that the wireless charging receiving device may receive the varying magnetic field from the wireless charging transmitting device through the induction coil. The varying magnetic field emitted by the transmitting coil may cause the induction coil to generate an induced current so that the wireless charging receiving device may obtain electrical energy from the wireless charging transmitting device. The wireless charging receiving device, that is, the open bluetooth headset 100 in the embodiment of the present application, where the wireless charging transmitting device may be a wireless bluetooth headset charging box capable of generating a changing magnetic field, or a general wireless charging base, etc., and the specific type of the wireless charging transmitting device is not limited in this application.

Illustratively, the inductive coil 21-1 and the charge receiving chip 21-2 are coupled by a resonant capacitor.

The resonance capacitor can form resonance with the induction coil 21-1, so that the resonance frequency of the circuit is adjusted to achieve the optimal power consumption effect.

Illustratively, the charging receiving chip 21-1 has a rectifier 21-2-1 and a voltage stabilizer 21-2-2 integrated therein, the rectifier 21-2-1 is used for rectifying the induced current to obtain direct current, and the voltage stabilizer 21-2-2 is used for stabilizing the direct current to obtain direct current with a stable voltage value. The high integration of the charge receiving chip 21-1 is advantageous for miniaturization, and the size of the printed circuit board (Printed Circuit Board, PCB) can be significantly reduced, thereby reducing the volume of the open bluetooth headset 100, and making the open bluetooth headset 100 more compact and portable.

Preferably, the charging receiving chip 21-1 adopts a wireless charging receiving control chip with a model of CV8013N, and CV8013N is a wireless charging receiving chip which has high integration, high efficiency and low power consumption and accords with the WPC 1.2 protocol. High-efficiency full synchronous rectifiers, low-dropout regulators (Low Dropout Regulator, LDOs) are integrated inside, and a non-contact wireless charging receiving scheme can be realized by a single chip.

In other embodiments that can be implemented in the present application, the charge receiving chip 21-1 may be replaced by a combination of two independent devices, i.e., the rectifier 21-2-1 and the voltage regulator 21-2-2, without affecting the function of use. Correspondingly, the output end of the induction coil 21-1 is connected with the input end of the rectifier 21-2-1, the output end of the rectifier is connected with the input end of the voltage stabilizer 21-2-2, and the output end of the voltage stabilizer is connected with the battery 22.

In the embodiment that can be implemented in the present application, the wireless charging receiving module 21 further includes an over-temperature protection unit 21-3 electrically connected to the wireless charging receiving chip 21-2 and a current limiting control unit 21-4, where the over-temperature protection unit 21-3 is configured to detect whether the wireless charging receiving module 21 exceeds a preset temperature, and the current limiting control unit 21-5 is configured to limit the current of the wireless charging receiving module 21. Specifically, peripheral circuit connections of the charge receiving chip 21-2 are shown in fig. 3, and the charge receiving chip 21-2 includes, but is not limited to, an AC1 pin, an AC2 pin, an OUT pin, a TS pin, a FOD pin, and a LIMI pin. Wherein, the AC1 pin and the AC2 pin are alternating current input ports for connecting the induction coil 21-1; the OUT pin outputs 5V voltage for supplying power to an external load; the TS pin is an over-temperature protection pin, is externally connected with a temperature sensitive resistor, and can obtain different over-temperature protection due to different resistances; the FOD pin is a receiving power setting pin for foreign matter detection; the LIMI pin is a current limiting setting pin, and different current limiting settings can be obtained by connecting different resistors. In the figure, Q1 represents a triode, RT1 represents a thermistor with a negative temperature coefficient, R1-R6 represent resistors, and C1 and C9 represent capacitors.

Wherein, J1 and J2 terminals are connected with two ends of the induction coil 21-1, and J2 terminal is connected with an AC2 pin. One end of the capacitor C8 is connected with the AC1 pin, the other end is connected with the AC2 pin, the capacitor C9 and the capacitor C8 are connected in parallel, and after the capacitors C5, C6 and C7 are connected in parallel, one end of the capacitor C5 is connected with the J1 terminal, and the other end is connected with the AC1 pin. And the capacitor corresponding to the inductance value is obtained in a mode of connecting the capacitors in series and parallel, so that the resonance of the circuit is achieved.

In a wireless energy transmission system, electromagnetic eddy currents generate heat, i.e. energy loss, which not only reduces the energy transmission efficiency, but also may lead to dangerous situations. It is therefore necessary to detect and limit the temperature and current level of the circuit. Referring to fig. 3, electrically connected to the TS pin is an over-temperature protection unit 21-3, wherein RT1 and R5 are connected in series, and R6 is connected in parallel to both ends of RT 1. One end of the base B and one end of the base R1 of the Q1 are connected, one end of the collector C and the collector C1 of the Q1 and the other end of the collector R5 are connected and connected to a TS pin, and the other end of the emitter E and the emitter C1 of the Q1 and the other end of the emitter RT1 are connected and grounded. The other end of R1 is connected to a WIRWLESS_FULL_EN terminal, which is a pin of Bluetooth chip 11-1. When the resistance of RT1 decreases, the total resistance of the over-temperature protection unit 21-3 decreases, the current becomes large, and when the maximum current of TS pin is exceeded, the charge receiving chip 21-2 immediately stops charging. And, when the temperature of the bluetooth chip 11-1 is too high, the charging receiving chip 21-2 is actively turned off through the wi-low_full_en pin to stop working.

Referring to fig. 3, electrically connected to the LIMI pin is a current limiting control unit 21-4, wherein one end of C2 is connected to the FOD pin, the other end is connected to the ground after being connected in parallel with R3, the other end of R3 is connected to one end of R2 and one end of R4, the other end of R2 is connected to the LIMI pin, and the other end of R4 is connected to the OUT pin. According to the current formula, the current of the LIMI pin is 450 divided by the sum of the resistance values of R2 and R3, and when the current limit is modified, only the resistance value of R2 needs to be modified.

In addition, since the capacitor itself has a large volume and cannot be integrated inside the charging receiving chip 21-2, an external filter capacitor is also required to smooth the possible fluctuation and pulsation in the dc signal output from the charging receiving chip 21-2, and meanwhile, the anti-interference capability of the circuit is improved. As shown in fig. 3, C3 and C4 are connected to the OUT pin, respectively, and are grounded, and filtered to output 5V voltage to charge the battery 22.

In the embodiment that can be implemented in the application, as shown in fig. 2, the bluetooth module 11 includes a bluetooth chip 11-1 and a functional module that is externally connected to the bluetooth chip 11-1, where the functional module includes an antenna module 11-2, a Six-Axis acceleration-gyroscope (Six-Axis acceleration gyroscopesensor,6-Axis a+g sensor) module 11-5, a Crystal oscillator (Crystal) module 11-3, a Serial Flash (Serial Flash) module 11-4, a Touch control (Touch IC) module 11-6, a primary microphone 11-7, and a secondary microphone 11-8;

the bluetooth chip 11-1 may be an ultra-low power consumption single chip audio platform with a model QCC3071, and the chip is specially applied to bluetooth music and audio applications, and is applicable to audio, game and stereo recording, and on the basis of combining with the conventional bluetooth technology, the user can obtain better use experience.

The antenna module 11-2 is used for receiving bluetooth audio, the antenna module 11-2 includes an antenna 11-2-1 and a filter 11-2-2 connected between the antenna 11-2-1 and the bluetooth chip 11-1; specifically, the filter 11-2-2 is a low-pass filter for reducing a high-frequency interference signal.

The six-axis acceleration-gyroscope module 11-5 is used for detecting the gesture of the earphone so that the Bluetooth chip 11-1 feeds back according to the gesture detection result; for example, the six-axis acceleration-gyro module 11-5 may dynamically track the head motion of the user, simulate a three-dimensional sense of space by means of a preset algorithm, and adjust the output of audio according to the head motion of the user.

The crystal oscillator module 11-3 is used for providing an oscillation signal for the Bluetooth chip 11-1 so as to meet the working clock of the Bluetooth chip 11-1 during operation;

the serial flash memory module 11-4 is used for storing a preset Bluetooth program; the serial flash memory is a nonvolatile memory, is suitable for storing control software, has good stability and can perform data transmission in real time and for a long time.

The Touch module 11-6 is used for interacting with a user, and the Touch module 11-6 comprises a Touch PAD (Touch PAD) with a multifunctional key (MFB); for example, a user may implement functions of playing, pausing, mode switching, etc. of audio through a single touch or multiple touches.

The main microphone 11-7 is used for picking up the call; the auxiliary microphone 11-8 is used for actively reducing noise; illustratively, the secondary microphone 11-8 may be a clear voice capture (Clear Voice Capture, CVC) microphone that provides echo and ambient noise cancellation functionality for a call, primarily for echoes generated during the call, supported by a full duplex microphone de-noising procedure.

In an embodiment that can be implemented in the present application, the bluetooth chip 11-1 and the speaker 12 are connected through an Amplifier 11-9, and the Amplifier (Amplifier) is used to amplify the audio signal that is parsed by the bluetooth chip 11-1.

In an embodiment of the present application, the functional module further includes a power management module 11-10, and the power management module 11-10 is configured to manage the voltage output by the power supply unit 2. In some embodiments, the power management module 11-10 may be integrated into the Bluetooth chip 11-1, and in other embodiments, the power management module 11-10 may be disposed outside the Bluetooth chip 11-1 to reduce noise inside the Bluetooth chip 11-1. The power management module 11-10 is used for connecting the battery 22, the discharging module 23 and the Bluetooth chip 11-1. The power management module 11-10 receives input from the battery 22 and/or the discharge module 23 to power the bluetooth chip 11-1, the antenna module 11-2, the crystal oscillator module 11-3, the serial flash memory module 11-4, etc. By way of example, the charging voltage 5V can be converted by the power management module to the 1.8V voltage required by the logic circuit of the functional module. The power management module 11-10 may also be used to monitor battery capacity, battery cycle times, battery health (leakage, impedance) and other parameters. In other embodiments, the power management module 11-10 and the discharge module 23 may be provided in the same device.

In an embodiment which can be implemented in the present application, the functional module further comprises a USB contact 11-11, the USB contact 11-11 being configured to obtain electrical energy from an external power source to charge the battery 22 when the wireless charging receiving module 21 is not in operation. Illustratively, the USB contacts 11-11 may be precision connectors (POGO PINs), or magnetically attracted POGO PINs, so that the open bluetooth headset 100 of the present utility model may still be placed in a charging box to implement a communication or charging function with the charging box, or may also be placed on a charging stand with contacts for wired charging.

It will be apparent to those skilled in the art that the above-described functional units are merely illustrated in terms of division for convenience and brevity, and that in practical applications, the above-described functional units and modules may be allocated to different functional units or modules according to needs, i.e., the internal structure of the apparatus may be divided into different functional units or modules to perform all or part of the above-described functions. The functional units in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present application. The specific working process of the units in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. An open Bluetooth headset is characterized by comprising a sound outlet part, a power supply part and an ear hanging part;

the sound emitting part comprises a Bluetooth module and a loudspeaker, wherein the Bluetooth module is used for wirelessly receiving and decoding the audio, and the loudspeaker is used for playing the audio decoded by the Bluetooth module;

the power supply part also comprises a discharging module, and the discharging module is used for outputting the electric energy stored in the battery to the sound emitting part for power supply;

the ear hanging part is used for connecting the sound emitting part and the power supply part, the shape of the ear hanging part corresponds to the shape of the auricle of a human body, and a clamping force is formed between the ear hanging part and the sound emitting part when the Bluetooth headset is worn so as to fix the open Bluetooth headset on the auricle.

2. The open bluetooth headset of claim 1, wherein the wireless charging receiving module comprises an induction coil and a charging receiving chip;

the induction coil is used for receiving a magnetic field generated by the external wireless charging transmitting equipment and generating induction current through electromagnetic induction;

3. The open bluetooth headset of claim 2, wherein a rectifier and a voltage stabilizer are integrated inside the charging receiving chip, the rectifier is used for rectifying the induced current to obtain direct current, and the voltage stabilizer is used for stabilizing the direct current to obtain direct current with stable voltage value.

4. The open bluetooth headset of claim 2, wherein the wireless charging receiving module further comprises an over-temperature protection unit and a current limiting control unit electrically connected to the charging receiving chip, the over-temperature protection unit being configured to detect whether the wireless charging receiving module exceeds a preset temperature, and the current limiting control unit being configured to limit a current of the wireless charging receiving module.

5. The open bluetooth headset of claim 2, wherein the induction coil is in the shape of a flat ring vertically attached along the outer wall of the battery, and the induction coil and the battery are filled with a magnetically insulating material.

6. The open bluetooth headset of claim 1, wherein the bluetooth module comprises a bluetooth chip and a functional module external to the bluetooth chip, the functional module comprising an antenna module, a six-axis acceleration-gyroscope module, a crystal oscillator module, a serial flash memory module, a touch module, a primary microphone, and a secondary microphone;

the six-axis acceleration-gyroscope module is used for detecting the gesture of the earphone so that the Bluetooth chip feeds back according to the gesture detection result;

the serial flash memory module is used for storing a preset Bluetooth program;

the main microphone is used for picking up calls;

the secondary microphone is used for actively reducing noise.

7. The open bluetooth headset of claim 6, wherein the bluetooth chip and the speaker are connected by an amplifier, the amplifier being configured to amplify an audio signal parsed by the bluetooth chip.

8. The open bluetooth headset of claim 6, wherein the functional module further comprises a power management module for managing the voltage output by the power section.

9. The open bluetooth headset of any one of claims 6 to 8, wherein the functional module further comprises a USB contact for obtaining electrical energy from an external power source to charge the battery when the wireless charging receiving module is not operating.